1 | /* |
2 | * Linux syscalls |
3 | * |
4 | * Copyright (c) 2003 Fabrice Bellard |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | #define _ATFILE_SOURCE |
20 | #include "qemu/osdep.h" |
21 | #include "qemu/cutils.h" |
22 | #include "qemu/path.h" |
23 | #include "qemu/queue.h" |
24 | #include <elf.h> |
25 | #include <endian.h> |
26 | #include <grp.h> |
27 | #include <sys/ipc.h> |
28 | #include <sys/msg.h> |
29 | #include <sys/wait.h> |
30 | #include <sys/mount.h> |
31 | #include <sys/file.h> |
32 | #include <sys/fsuid.h> |
33 | #include <sys/personality.h> |
34 | #include <sys/prctl.h> |
35 | #include <sys/resource.h> |
36 | #include <sys/swap.h> |
37 | #include <linux/capability.h> |
38 | #include <sched.h> |
39 | #include <sys/timex.h> |
40 | #include <sys/socket.h> |
41 | #include <linux/sockios.h> |
42 | #include <sys/un.h> |
43 | #include <sys/uio.h> |
44 | #include <poll.h> |
45 | #include <sys/times.h> |
46 | #include <sys/shm.h> |
47 | #include <sys/sem.h> |
48 | #include <sys/statfs.h> |
49 | #include <utime.h> |
50 | #include <sys/sysinfo.h> |
51 | #include <sys/signalfd.h> |
52 | //#include <sys/user.h> |
53 | #include <netinet/ip.h> |
54 | #include <netinet/tcp.h> |
55 | #include <linux/wireless.h> |
56 | #include <linux/icmp.h> |
57 | #include <linux/icmpv6.h> |
58 | #include <linux/errqueue.h> |
59 | #include <linux/random.h> |
60 | #ifdef CONFIG_TIMERFD |
61 | #include <sys/timerfd.h> |
62 | #endif |
63 | #ifdef CONFIG_EVENTFD |
64 | #include <sys/eventfd.h> |
65 | #endif |
66 | #ifdef CONFIG_EPOLL |
67 | #include <sys/epoll.h> |
68 | #endif |
69 | #ifdef CONFIG_ATTR |
70 | #include "qemu/xattr.h" |
71 | #endif |
72 | #ifdef CONFIG_SENDFILE |
73 | #include <sys/sendfile.h> |
74 | #endif |
75 | |
76 | #define termios host_termios |
77 | #define winsize host_winsize |
78 | #define termio host_termio |
79 | #define sgttyb host_sgttyb /* same as target */ |
80 | #define tchars host_tchars /* same as target */ |
81 | #define ltchars host_ltchars /* same as target */ |
82 | |
83 | #include <linux/termios.h> |
84 | #include <linux/unistd.h> |
85 | #include <linux/cdrom.h> |
86 | #include <linux/hdreg.h> |
87 | #include <linux/soundcard.h> |
88 | #include <linux/kd.h> |
89 | #include <linux/mtio.h> |
90 | #include <linux/fs.h> |
91 | #if defined(CONFIG_FIEMAP) |
92 | #include <linux/fiemap.h> |
93 | #endif |
94 | #include <linux/fb.h> |
95 | #if defined(CONFIG_USBFS) |
96 | #include <linux/usbdevice_fs.h> |
97 | #include <linux/usb/ch9.h> |
98 | #endif |
99 | #include <linux/vt.h> |
100 | #include <linux/dm-ioctl.h> |
101 | #include <linux/reboot.h> |
102 | #include <linux/route.h> |
103 | #include <linux/filter.h> |
104 | #include <linux/blkpg.h> |
105 | #include <netpacket/packet.h> |
106 | #include <linux/netlink.h> |
107 | #include <linux/if_alg.h> |
108 | #include "linux_loop.h" |
109 | #include "uname.h" |
110 | |
111 | #include "qemu.h" |
112 | #include "qemu/guest-random.h" |
113 | #include "qapi/error.h" |
114 | #include "fd-trans.h" |
115 | |
116 | #ifndef CLONE_IO |
117 | #define CLONE_IO 0x80000000 /* Clone io context */ |
118 | #endif |
119 | |
120 | /* We can't directly call the host clone syscall, because this will |
121 | * badly confuse libc (breaking mutexes, for example). So we must |
122 | * divide clone flags into: |
123 | * * flag combinations that look like pthread_create() |
124 | * * flag combinations that look like fork() |
125 | * * flags we can implement within QEMU itself |
126 | * * flags we can't support and will return an error for |
127 | */ |
128 | /* For thread creation, all these flags must be present; for |
129 | * fork, none must be present. |
130 | */ |
131 | #define CLONE_THREAD_FLAGS \ |
132 | (CLONE_VM | CLONE_FS | CLONE_FILES | \ |
133 | CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM) |
134 | |
135 | /* These flags are ignored: |
136 | * CLONE_DETACHED is now ignored by the kernel; |
137 | * CLONE_IO is just an optimisation hint to the I/O scheduler |
138 | */ |
139 | #define CLONE_IGNORED_FLAGS \ |
140 | (CLONE_DETACHED | CLONE_IO) |
141 | |
142 | /* Flags for fork which we can implement within QEMU itself */ |
143 | #define CLONE_OPTIONAL_FORK_FLAGS \ |
144 | (CLONE_SETTLS | CLONE_PARENT_SETTID | \ |
145 | CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID) |
146 | |
147 | /* Flags for thread creation which we can implement within QEMU itself */ |
148 | #define CLONE_OPTIONAL_THREAD_FLAGS \ |
149 | (CLONE_SETTLS | CLONE_PARENT_SETTID | \ |
150 | CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT) |
151 | |
152 | #define CLONE_INVALID_FORK_FLAGS \ |
153 | (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS)) |
154 | |
155 | #define CLONE_INVALID_THREAD_FLAGS \ |
156 | (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \ |
157 | CLONE_IGNORED_FLAGS)) |
158 | |
159 | /* CLONE_VFORK is special cased early in do_fork(). The other flag bits |
160 | * have almost all been allocated. We cannot support any of |
161 | * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC, |
162 | * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED. |
163 | * The checks against the invalid thread masks above will catch these. |
164 | * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.) |
165 | */ |
166 | |
167 | /* Define DEBUG_ERESTARTSYS to force every syscall to be restarted |
168 | * once. This exercises the codepaths for restart. |
169 | */ |
170 | //#define DEBUG_ERESTARTSYS |
171 | |
172 | //#include <linux/msdos_fs.h> |
173 | #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2]) |
174 | #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2]) |
175 | |
176 | #undef _syscall0 |
177 | #undef _syscall1 |
178 | #undef _syscall2 |
179 | #undef _syscall3 |
180 | #undef _syscall4 |
181 | #undef _syscall5 |
182 | #undef _syscall6 |
183 | |
184 | #define _syscall0(type,name) \ |
185 | static type name (void) \ |
186 | { \ |
187 | return syscall(__NR_##name); \ |
188 | } |
189 | |
190 | #define _syscall1(type,name,type1,arg1) \ |
191 | static type name (type1 arg1) \ |
192 | { \ |
193 | return syscall(__NR_##name, arg1); \ |
194 | } |
195 | |
196 | #define _syscall2(type,name,type1,arg1,type2,arg2) \ |
197 | static type name (type1 arg1,type2 arg2) \ |
198 | { \ |
199 | return syscall(__NR_##name, arg1, arg2); \ |
200 | } |
201 | |
202 | #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ |
203 | static type name (type1 arg1,type2 arg2,type3 arg3) \ |
204 | { \ |
205 | return syscall(__NR_##name, arg1, arg2, arg3); \ |
206 | } |
207 | |
208 | #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ |
209 | static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ |
210 | { \ |
211 | return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ |
212 | } |
213 | |
214 | #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ |
215 | type5,arg5) \ |
216 | static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ |
217 | { \ |
218 | return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ |
219 | } |
220 | |
221 | |
222 | #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ |
223 | type5,arg5,type6,arg6) \ |
224 | static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ |
225 | type6 arg6) \ |
226 | { \ |
227 | return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ |
228 | } |
229 | |
230 | |
231 | #define __NR_sys_uname __NR_uname |
232 | #define __NR_sys_getcwd1 __NR_getcwd |
233 | #define __NR_sys_getdents __NR_getdents |
234 | #define __NR_sys_getdents64 __NR_getdents64 |
235 | #define __NR_sys_getpriority __NR_getpriority |
236 | #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo |
237 | #define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo |
238 | #define __NR_sys_syslog __NR_syslog |
239 | #define __NR_sys_futex __NR_futex |
240 | #define __NR_sys_inotify_init __NR_inotify_init |
241 | #define __NR_sys_inotify_add_watch __NR_inotify_add_watch |
242 | #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch |
243 | #define __NR_sys_statx __NR_statx |
244 | |
245 | #if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__) |
246 | #define __NR__llseek __NR_lseek |
247 | #endif |
248 | |
249 | /* Newer kernel ports have llseek() instead of _llseek() */ |
250 | #if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek) |
251 | #define TARGET_NR__llseek TARGET_NR_llseek |
252 | #endif |
253 | |
254 | #define __NR_sys_gettid __NR_gettid |
255 | _syscall0(int, sys_gettid) |
256 | |
257 | /* For the 64-bit guest on 32-bit host case we must emulate |
258 | * getdents using getdents64, because otherwise the host |
259 | * might hand us back more dirent records than we can fit |
260 | * into the guest buffer after structure format conversion. |
261 | * Otherwise we emulate getdents with getdents if the host has it. |
262 | */ |
263 | #if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS |
264 | #define EMULATE_GETDENTS_WITH_GETDENTS |
265 | #endif |
266 | |
267 | #if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS) |
268 | _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); |
269 | #endif |
270 | #if (defined(TARGET_NR_getdents) && \ |
271 | !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \ |
272 | (defined(TARGET_NR_getdents64) && defined(__NR_getdents64)) |
273 | _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); |
274 | #endif |
275 | #if defined(TARGET_NR__llseek) && defined(__NR_llseek) |
276 | _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, |
277 | loff_t *, res, uint, wh); |
278 | #endif |
279 | _syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo) |
280 | _syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig, |
281 | siginfo_t *, uinfo) |
282 | _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) |
283 | #ifdef __NR_exit_group |
284 | _syscall1(int,exit_group,int,error_code) |
285 | #endif |
286 | #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) |
287 | _syscall1(int,set_tid_address,int *,tidptr) |
288 | #endif |
289 | #if defined(TARGET_NR_futex) && defined(__NR_futex) |
290 | _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, |
291 | const struct timespec *,timeout,int *,uaddr2,int,val3) |
292 | #endif |
293 | #define __NR_sys_sched_getaffinity __NR_sched_getaffinity |
294 | _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len, |
295 | unsigned long *, user_mask_ptr); |
296 | #define __NR_sys_sched_setaffinity __NR_sched_setaffinity |
297 | _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, |
298 | unsigned long *, user_mask_ptr); |
299 | #define __NR_sys_getcpu __NR_getcpu |
300 | _syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache); |
301 | _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd, |
302 | void *, arg); |
303 | _syscall2(int, capget, struct __user_cap_header_struct *, , |
304 | struct __user_cap_data_struct *, data); |
305 | _syscall2(int, capset, struct __user_cap_header_struct *, , |
306 | struct __user_cap_data_struct *, data); |
307 | #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get) |
308 | _syscall2(int, ioprio_get, int, which, int, who) |
309 | #endif |
310 | #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) |
311 | _syscall3(int, ioprio_set, int, which, int, who, int, ioprio) |
312 | #endif |
313 | #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) |
314 | _syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags) |
315 | #endif |
316 | |
317 | #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp) |
318 | _syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type, |
319 | unsigned long, idx1, unsigned long, idx2) |
320 | #endif |
321 | |
322 | /* |
323 | * It is assumed that struct statx is architecture independent. |
324 | */ |
325 | #if defined(TARGET_NR_statx) && defined(__NR_statx) |
326 | _syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags, |
327 | unsigned int, mask, struct target_statx *, statxbuf) |
328 | #endif |
329 | |
330 | static bitmask_transtbl fcntl_flags_tbl[] = { |
331 | { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, |
332 | { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, |
333 | { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, |
334 | { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, |
335 | { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, |
336 | { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, |
337 | { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, |
338 | { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, |
339 | { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, }, |
340 | { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, |
341 | { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, |
342 | { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, |
343 | { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, |
344 | #if defined(O_DIRECT) |
345 | { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, |
346 | #endif |
347 | #if defined(O_NOATIME) |
348 | { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME }, |
349 | #endif |
350 | #if defined(O_CLOEXEC) |
351 | { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC }, |
352 | #endif |
353 | #if defined(O_PATH) |
354 | { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH }, |
355 | #endif |
356 | #if defined(O_TMPFILE) |
357 | { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE }, |
358 | #endif |
359 | /* Don't terminate the list prematurely on 64-bit host+guest. */ |
360 | #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0 |
361 | { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, |
362 | #endif |
363 | { 0, 0, 0, 0 } |
364 | }; |
365 | |
366 | static int sys_getcwd1(char *buf, size_t size) |
367 | { |
368 | if (getcwd(buf, size) == NULL) { |
369 | /* getcwd() sets errno */ |
370 | return (-1); |
371 | } |
372 | return strlen(buf)+1; |
373 | } |
374 | |
375 | #ifdef TARGET_NR_utimensat |
376 | #if defined(__NR_utimensat) |
377 | #define __NR_sys_utimensat __NR_utimensat |
378 | _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, |
379 | const struct timespec *,tsp,int,flags) |
380 | #else |
381 | static int sys_utimensat(int dirfd, const char *pathname, |
382 | const struct timespec times[2], int flags) |
383 | { |
384 | errno = ENOSYS; |
385 | return -1; |
386 | } |
387 | #endif |
388 | #endif /* TARGET_NR_utimensat */ |
389 | |
390 | #ifdef TARGET_NR_renameat2 |
391 | #if defined(__NR_renameat2) |
392 | #define __NR_sys_renameat2 __NR_renameat2 |
393 | _syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd, |
394 | const char *, new, unsigned int, flags) |
395 | #else |
396 | static int sys_renameat2(int oldfd, const char *old, |
397 | int newfd, const char *new, int flags) |
398 | { |
399 | if (flags == 0) { |
400 | return renameat(oldfd, old, newfd, new); |
401 | } |
402 | errno = ENOSYS; |
403 | return -1; |
404 | } |
405 | #endif |
406 | #endif /* TARGET_NR_renameat2 */ |
407 | |
408 | #ifdef CONFIG_INOTIFY |
409 | #include <sys/inotify.h> |
410 | |
411 | #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) |
412 | static int sys_inotify_init(void) |
413 | { |
414 | return (inotify_init()); |
415 | } |
416 | #endif |
417 | #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) |
418 | static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask) |
419 | { |
420 | return (inotify_add_watch(fd, pathname, mask)); |
421 | } |
422 | #endif |
423 | #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) |
424 | static int sys_inotify_rm_watch(int fd, int32_t wd) |
425 | { |
426 | return (inotify_rm_watch(fd, wd)); |
427 | } |
428 | #endif |
429 | #ifdef CONFIG_INOTIFY1 |
430 | #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) |
431 | static int sys_inotify_init1(int flags) |
432 | { |
433 | return (inotify_init1(flags)); |
434 | } |
435 | #endif |
436 | #endif |
437 | #else |
438 | /* Userspace can usually survive runtime without inotify */ |
439 | #undef TARGET_NR_inotify_init |
440 | #undef TARGET_NR_inotify_init1 |
441 | #undef TARGET_NR_inotify_add_watch |
442 | #undef TARGET_NR_inotify_rm_watch |
443 | #endif /* CONFIG_INOTIFY */ |
444 | |
445 | #if defined(TARGET_NR_prlimit64) |
446 | #ifndef __NR_prlimit64 |
447 | # define __NR_prlimit64 -1 |
448 | #endif |
449 | #define __NR_sys_prlimit64 __NR_prlimit64 |
450 | /* The glibc rlimit structure may not be that used by the underlying syscall */ |
451 | struct host_rlimit64 { |
452 | uint64_t rlim_cur; |
453 | uint64_t rlim_max; |
454 | }; |
455 | _syscall4(int, sys_prlimit64, pid_t, pid, int, resource, |
456 | const struct host_rlimit64 *, new_limit, |
457 | struct host_rlimit64 *, old_limit) |
458 | #endif |
459 | |
460 | |
461 | #if defined(TARGET_NR_timer_create) |
462 | /* Maxiumum of 32 active POSIX timers allowed at any one time. */ |
463 | static timer_t g_posix_timers[32] = { 0, } ; |
464 | |
465 | static inline int next_free_host_timer(void) |
466 | { |
467 | int k ; |
468 | /* FIXME: Does finding the next free slot require a lock? */ |
469 | for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) { |
470 | if (g_posix_timers[k] == 0) { |
471 | g_posix_timers[k] = (timer_t) 1; |
472 | return k; |
473 | } |
474 | } |
475 | return -1; |
476 | } |
477 | #endif |
478 | |
479 | /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */ |
480 | #ifdef TARGET_ARM |
481 | static inline int regpairs_aligned(void *cpu_env, int num) |
482 | { |
483 | return ((((CPUARMState *)cpu_env)->eabi) == 1) ; |
484 | } |
485 | #elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32) |
486 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
487 | #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) |
488 | /* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs |
489 | * of registers which translates to the same as ARM/MIPS, because we start with |
490 | * r3 as arg1 */ |
491 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
492 | #elif defined(TARGET_SH4) |
493 | /* SH4 doesn't align register pairs, except for p{read,write}64 */ |
494 | static inline int regpairs_aligned(void *cpu_env, int num) |
495 | { |
496 | switch (num) { |
497 | case TARGET_NR_pread64: |
498 | case TARGET_NR_pwrite64: |
499 | return 1; |
500 | |
501 | default: |
502 | return 0; |
503 | } |
504 | } |
505 | #elif defined(TARGET_XTENSA) |
506 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
507 | #else |
508 | static inline int regpairs_aligned(void *cpu_env, int num) { return 0; } |
509 | #endif |
510 | |
511 | #define ERRNO_TABLE_SIZE 1200 |
512 | |
513 | /* target_to_host_errno_table[] is initialized from |
514 | * host_to_target_errno_table[] in syscall_init(). */ |
515 | static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { |
516 | }; |
517 | |
518 | /* |
519 | * This list is the union of errno values overridden in asm-<arch>/errno.h |
520 | * minus the errnos that are not actually generic to all archs. |
521 | */ |
522 | static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { |
523 | [EAGAIN] = TARGET_EAGAIN, |
524 | [EIDRM] = TARGET_EIDRM, |
525 | [ECHRNG] = TARGET_ECHRNG, |
526 | [EL2NSYNC] = TARGET_EL2NSYNC, |
527 | [EL3HLT] = TARGET_EL3HLT, |
528 | [EL3RST] = TARGET_EL3RST, |
529 | [ELNRNG] = TARGET_ELNRNG, |
530 | [EUNATCH] = TARGET_EUNATCH, |
531 | [ENOCSI] = TARGET_ENOCSI, |
532 | [EL2HLT] = TARGET_EL2HLT, |
533 | [EDEADLK] = TARGET_EDEADLK, |
534 | [ENOLCK] = TARGET_ENOLCK, |
535 | [EBADE] = TARGET_EBADE, |
536 | [EBADR] = TARGET_EBADR, |
537 | [EXFULL] = TARGET_EXFULL, |
538 | [ENOANO] = TARGET_ENOANO, |
539 | [EBADRQC] = TARGET_EBADRQC, |
540 | [EBADSLT] = TARGET_EBADSLT, |
541 | [EBFONT] = TARGET_EBFONT, |
542 | [ENOSTR] = TARGET_ENOSTR, |
543 | [ENODATA] = TARGET_ENODATA, |
544 | [ETIME] = TARGET_ETIME, |
545 | [ENOSR] = TARGET_ENOSR, |
546 | [ENONET] = TARGET_ENONET, |
547 | [ENOPKG] = TARGET_ENOPKG, |
548 | [EREMOTE] = TARGET_EREMOTE, |
549 | [ENOLINK] = TARGET_ENOLINK, |
550 | [EADV] = TARGET_EADV, |
551 | [ESRMNT] = TARGET_ESRMNT, |
552 | [ECOMM] = TARGET_ECOMM, |
553 | [EPROTO] = TARGET_EPROTO, |
554 | [EDOTDOT] = TARGET_EDOTDOT, |
555 | [EMULTIHOP] = TARGET_EMULTIHOP, |
556 | [EBADMSG] = TARGET_EBADMSG, |
557 | [ENAMETOOLONG] = TARGET_ENAMETOOLONG, |
558 | [EOVERFLOW] = TARGET_EOVERFLOW, |
559 | [ENOTUNIQ] = TARGET_ENOTUNIQ, |
560 | [EBADFD] = TARGET_EBADFD, |
561 | [EREMCHG] = TARGET_EREMCHG, |
562 | [ELIBACC] = TARGET_ELIBACC, |
563 | [ELIBBAD] = TARGET_ELIBBAD, |
564 | [ELIBSCN] = TARGET_ELIBSCN, |
565 | [ELIBMAX] = TARGET_ELIBMAX, |
566 | [ELIBEXEC] = TARGET_ELIBEXEC, |
567 | [EILSEQ] = TARGET_EILSEQ, |
568 | [ENOSYS] = TARGET_ENOSYS, |
569 | [ELOOP] = TARGET_ELOOP, |
570 | [ERESTART] = TARGET_ERESTART, |
571 | [ESTRPIPE] = TARGET_ESTRPIPE, |
572 | [ENOTEMPTY] = TARGET_ENOTEMPTY, |
573 | [EUSERS] = TARGET_EUSERS, |
574 | [ENOTSOCK] = TARGET_ENOTSOCK, |
575 | [EDESTADDRREQ] = TARGET_EDESTADDRREQ, |
576 | [EMSGSIZE] = TARGET_EMSGSIZE, |
577 | [EPROTOTYPE] = TARGET_EPROTOTYPE, |
578 | [ENOPROTOOPT] = TARGET_ENOPROTOOPT, |
579 | [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, |
580 | [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, |
581 | [EOPNOTSUPP] = TARGET_EOPNOTSUPP, |
582 | [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, |
583 | [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, |
584 | [EADDRINUSE] = TARGET_EADDRINUSE, |
585 | [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, |
586 | [ENETDOWN] = TARGET_ENETDOWN, |
587 | [ENETUNREACH] = TARGET_ENETUNREACH, |
588 | [ENETRESET] = TARGET_ENETRESET, |
589 | [ECONNABORTED] = TARGET_ECONNABORTED, |
590 | [ECONNRESET] = TARGET_ECONNRESET, |
591 | [ENOBUFS] = TARGET_ENOBUFS, |
592 | [EISCONN] = TARGET_EISCONN, |
593 | [ENOTCONN] = TARGET_ENOTCONN, |
594 | [EUCLEAN] = TARGET_EUCLEAN, |
595 | [ENOTNAM] = TARGET_ENOTNAM, |
596 | [ENAVAIL] = TARGET_ENAVAIL, |
597 | [EISNAM] = TARGET_EISNAM, |
598 | [EREMOTEIO] = TARGET_EREMOTEIO, |
599 | [EDQUOT] = TARGET_EDQUOT, |
600 | [ESHUTDOWN] = TARGET_ESHUTDOWN, |
601 | [ETOOMANYREFS] = TARGET_ETOOMANYREFS, |
602 | [ETIMEDOUT] = TARGET_ETIMEDOUT, |
603 | [ECONNREFUSED] = TARGET_ECONNREFUSED, |
604 | [EHOSTDOWN] = TARGET_EHOSTDOWN, |
605 | [EHOSTUNREACH] = TARGET_EHOSTUNREACH, |
606 | [EALREADY] = TARGET_EALREADY, |
607 | [EINPROGRESS] = TARGET_EINPROGRESS, |
608 | [ESTALE] = TARGET_ESTALE, |
609 | [ECANCELED] = TARGET_ECANCELED, |
610 | [ENOMEDIUM] = TARGET_ENOMEDIUM, |
611 | [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, |
612 | #ifdef ENOKEY |
613 | [ENOKEY] = TARGET_ENOKEY, |
614 | #endif |
615 | #ifdef EKEYEXPIRED |
616 | [EKEYEXPIRED] = TARGET_EKEYEXPIRED, |
617 | #endif |
618 | #ifdef EKEYREVOKED |
619 | [EKEYREVOKED] = TARGET_EKEYREVOKED, |
620 | #endif |
621 | #ifdef EKEYREJECTED |
622 | [EKEYREJECTED] = TARGET_EKEYREJECTED, |
623 | #endif |
624 | #ifdef EOWNERDEAD |
625 | [EOWNERDEAD] = TARGET_EOWNERDEAD, |
626 | #endif |
627 | #ifdef ENOTRECOVERABLE |
628 | [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, |
629 | #endif |
630 | #ifdef ENOMSG |
631 | [ENOMSG] = TARGET_ENOMSG, |
632 | #endif |
633 | #ifdef ERKFILL |
634 | [ERFKILL] = TARGET_ERFKILL, |
635 | #endif |
636 | #ifdef EHWPOISON |
637 | [EHWPOISON] = TARGET_EHWPOISON, |
638 | #endif |
639 | }; |
640 | |
641 | static inline int host_to_target_errno(int err) |
642 | { |
643 | if (err >= 0 && err < ERRNO_TABLE_SIZE && |
644 | host_to_target_errno_table[err]) { |
645 | return host_to_target_errno_table[err]; |
646 | } |
647 | return err; |
648 | } |
649 | |
650 | static inline int target_to_host_errno(int err) |
651 | { |
652 | if (err >= 0 && err < ERRNO_TABLE_SIZE && |
653 | target_to_host_errno_table[err]) { |
654 | return target_to_host_errno_table[err]; |
655 | } |
656 | return err; |
657 | } |
658 | |
659 | static inline abi_long get_errno(abi_long ret) |
660 | { |
661 | if (ret == -1) |
662 | return -host_to_target_errno(errno); |
663 | else |
664 | return ret; |
665 | } |
666 | |
667 | const char *target_strerror(int err) |
668 | { |
669 | if (err == TARGET_ERESTARTSYS) { |
670 | return "To be restarted" ; |
671 | } |
672 | if (err == TARGET_QEMU_ESIGRETURN) { |
673 | return "Successful exit from sigreturn" ; |
674 | } |
675 | |
676 | if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { |
677 | return NULL; |
678 | } |
679 | return strerror(target_to_host_errno(err)); |
680 | } |
681 | |
682 | #define safe_syscall0(type, name) \ |
683 | static type safe_##name(void) \ |
684 | { \ |
685 | return safe_syscall(__NR_##name); \ |
686 | } |
687 | |
688 | #define safe_syscall1(type, name, type1, arg1) \ |
689 | static type safe_##name(type1 arg1) \ |
690 | { \ |
691 | return safe_syscall(__NR_##name, arg1); \ |
692 | } |
693 | |
694 | #define safe_syscall2(type, name, type1, arg1, type2, arg2) \ |
695 | static type safe_##name(type1 arg1, type2 arg2) \ |
696 | { \ |
697 | return safe_syscall(__NR_##name, arg1, arg2); \ |
698 | } |
699 | |
700 | #define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ |
701 | static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \ |
702 | { \ |
703 | return safe_syscall(__NR_##name, arg1, arg2, arg3); \ |
704 | } |
705 | |
706 | #define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
707 | type4, arg4) \ |
708 | static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ |
709 | { \ |
710 | return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \ |
711 | } |
712 | |
713 | #define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
714 | type4, arg4, type5, arg5) \ |
715 | static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ |
716 | type5 arg5) \ |
717 | { \ |
718 | return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ |
719 | } |
720 | |
721 | #define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
722 | type4, arg4, type5, arg5, type6, arg6) \ |
723 | static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ |
724 | type5 arg5, type6 arg6) \ |
725 | { \ |
726 | return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ |
727 | } |
728 | |
729 | safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count) |
730 | safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count) |
731 | safe_syscall4(int, openat, int, dirfd, const char *, pathname, \ |
732 | int, flags, mode_t, mode) |
733 | safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \ |
734 | struct rusage *, rusage) |
735 | safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \ |
736 | int, options, struct rusage *, rusage) |
737 | safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp) |
738 | safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \ |
739 | fd_set *, exceptfds, struct timespec *, timeout, void *, sig) |
740 | safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds, |
741 | struct timespec *, tsp, const sigset_t *, sigmask, |
742 | size_t, sigsetsize) |
743 | safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events, |
744 | int, maxevents, int, timeout, const sigset_t *, sigmask, |
745 | size_t, sigsetsize) |
746 | safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \ |
747 | const struct timespec *,timeout,int *,uaddr2,int,val3) |
748 | safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize) |
749 | safe_syscall2(int, kill, pid_t, pid, int, sig) |
750 | safe_syscall2(int, tkill, int, tid, int, sig) |
751 | safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig) |
752 | safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt) |
753 | safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt) |
754 | safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt, |
755 | unsigned long, pos_l, unsigned long, pos_h) |
756 | safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt, |
757 | unsigned long, pos_l, unsigned long, pos_h) |
758 | safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr, |
759 | socklen_t, addrlen) |
760 | safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len, |
761 | int, flags, const struct sockaddr *, addr, socklen_t, addrlen) |
762 | safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len, |
763 | int, flags, struct sockaddr *, addr, socklen_t *, addrlen) |
764 | safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags) |
765 | safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags) |
766 | safe_syscall2(int, flock, int, fd, int, operation) |
767 | safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo, |
768 | const struct timespec *, uts, size_t, sigsetsize) |
769 | safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len, |
770 | int, flags) |
771 | safe_syscall2(int, nanosleep, const struct timespec *, req, |
772 | struct timespec *, rem) |
773 | #ifdef TARGET_NR_clock_nanosleep |
774 | safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags, |
775 | const struct timespec *, req, struct timespec *, rem) |
776 | #endif |
777 | #ifdef __NR_ipc |
778 | safe_syscall6(int, ipc, int, call, long, first, long, second, long, third, |
779 | void *, ptr, long, fifth) |
780 | #endif |
781 | #ifdef __NR_msgsnd |
782 | safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz, |
783 | int, flags) |
784 | #endif |
785 | #ifdef __NR_msgrcv |
786 | safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz, |
787 | long, msgtype, int, flags) |
788 | #endif |
789 | #ifdef __NR_semtimedop |
790 | safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops, |
791 | unsigned, nsops, const struct timespec *, timeout) |
792 | #endif |
793 | #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
794 | safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr, |
795 | size_t, len, unsigned, prio, const struct timespec *, timeout) |
796 | safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr, |
797 | size_t, len, unsigned *, prio, const struct timespec *, timeout) |
798 | #endif |
799 | /* We do ioctl like this rather than via safe_syscall3 to preserve the |
800 | * "third argument might be integer or pointer or not present" behaviour of |
801 | * the libc function. |
802 | */ |
803 | #define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__) |
804 | /* Similarly for fcntl. Note that callers must always: |
805 | * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK |
806 | * use the flock64 struct rather than unsuffixed flock |
807 | * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts. |
808 | */ |
809 | #ifdef __NR_fcntl64 |
810 | #define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__) |
811 | #else |
812 | #define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__) |
813 | #endif |
814 | |
815 | static inline int host_to_target_sock_type(int host_type) |
816 | { |
817 | int target_type; |
818 | |
819 | switch (host_type & 0xf /* SOCK_TYPE_MASK */) { |
820 | case SOCK_DGRAM: |
821 | target_type = TARGET_SOCK_DGRAM; |
822 | break; |
823 | case SOCK_STREAM: |
824 | target_type = TARGET_SOCK_STREAM; |
825 | break; |
826 | default: |
827 | target_type = host_type & 0xf /* SOCK_TYPE_MASK */; |
828 | break; |
829 | } |
830 | |
831 | #if defined(SOCK_CLOEXEC) |
832 | if (host_type & SOCK_CLOEXEC) { |
833 | target_type |= TARGET_SOCK_CLOEXEC; |
834 | } |
835 | #endif |
836 | |
837 | #if defined(SOCK_NONBLOCK) |
838 | if (host_type & SOCK_NONBLOCK) { |
839 | target_type |= TARGET_SOCK_NONBLOCK; |
840 | } |
841 | #endif |
842 | |
843 | return target_type; |
844 | } |
845 | |
846 | static abi_ulong target_brk; |
847 | static abi_ulong target_original_brk; |
848 | static abi_ulong brk_page; |
849 | |
850 | void target_set_brk(abi_ulong new_brk) |
851 | { |
852 | target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); |
853 | brk_page = HOST_PAGE_ALIGN(target_brk); |
854 | } |
855 | |
856 | //#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0) |
857 | #define DEBUGF_BRK(message, args...) |
858 | |
859 | /* do_brk() must return target values and target errnos. */ |
860 | abi_long do_brk(abi_ulong new_brk) |
861 | { |
862 | abi_long mapped_addr; |
863 | abi_ulong new_alloc_size; |
864 | |
865 | DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> " , new_brk); |
866 | |
867 | if (!new_brk) { |
868 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n" , target_brk); |
869 | return target_brk; |
870 | } |
871 | if (new_brk < target_original_brk) { |
872 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n" , |
873 | target_brk); |
874 | return target_brk; |
875 | } |
876 | |
877 | /* If the new brk is less than the highest page reserved to the |
878 | * target heap allocation, set it and we're almost done... */ |
879 | if (new_brk <= brk_page) { |
880 | /* Heap contents are initialized to zero, as for anonymous |
881 | * mapped pages. */ |
882 | if (new_brk > target_brk) { |
883 | memset(g2h(target_brk), 0, new_brk - target_brk); |
884 | } |
885 | target_brk = new_brk; |
886 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n" , target_brk); |
887 | return target_brk; |
888 | } |
889 | |
890 | /* We need to allocate more memory after the brk... Note that |
891 | * we don't use MAP_FIXED because that will map over the top of |
892 | * any existing mapping (like the one with the host libc or qemu |
893 | * itself); instead we treat "mapped but at wrong address" as |
894 | * a failure and unmap again. |
895 | */ |
896 | new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page); |
897 | mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, |
898 | PROT_READ|PROT_WRITE, |
899 | MAP_ANON|MAP_PRIVATE, 0, 0)); |
900 | |
901 | if (mapped_addr == brk_page) { |
902 | /* Heap contents are initialized to zero, as for anonymous |
903 | * mapped pages. Technically the new pages are already |
904 | * initialized to zero since they *are* anonymous mapped |
905 | * pages, however we have to take care with the contents that |
906 | * come from the remaining part of the previous page: it may |
907 | * contains garbage data due to a previous heap usage (grown |
908 | * then shrunken). */ |
909 | memset(g2h(target_brk), 0, brk_page - target_brk); |
910 | |
911 | target_brk = new_brk; |
912 | brk_page = HOST_PAGE_ALIGN(target_brk); |
913 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n" , |
914 | target_brk); |
915 | return target_brk; |
916 | } else if (mapped_addr != -1) { |
917 | /* Mapped but at wrong address, meaning there wasn't actually |
918 | * enough space for this brk. |
919 | */ |
920 | target_munmap(mapped_addr, new_alloc_size); |
921 | mapped_addr = -1; |
922 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n" , target_brk); |
923 | } |
924 | else { |
925 | DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n" , target_brk); |
926 | } |
927 | |
928 | #if defined(TARGET_ALPHA) |
929 | /* We (partially) emulate OSF/1 on Alpha, which requires we |
930 | return a proper errno, not an unchanged brk value. */ |
931 | return -TARGET_ENOMEM; |
932 | #endif |
933 | /* For everything else, return the previous break. */ |
934 | return target_brk; |
935 | } |
936 | |
937 | static inline abi_long copy_from_user_fdset(fd_set *fds, |
938 | abi_ulong target_fds_addr, |
939 | int n) |
940 | { |
941 | int i, nw, j, k; |
942 | abi_ulong b, *target_fds; |
943 | |
944 | nw = DIV_ROUND_UP(n, TARGET_ABI_BITS); |
945 | if (!(target_fds = lock_user(VERIFY_READ, |
946 | target_fds_addr, |
947 | sizeof(abi_ulong) * nw, |
948 | 1))) |
949 | return -TARGET_EFAULT; |
950 | |
951 | FD_ZERO(fds); |
952 | k = 0; |
953 | for (i = 0; i < nw; i++) { |
954 | /* grab the abi_ulong */ |
955 | __get_user(b, &target_fds[i]); |
956 | for (j = 0; j < TARGET_ABI_BITS; j++) { |
957 | /* check the bit inside the abi_ulong */ |
958 | if ((b >> j) & 1) |
959 | FD_SET(k, fds); |
960 | k++; |
961 | } |
962 | } |
963 | |
964 | unlock_user(target_fds, target_fds_addr, 0); |
965 | |
966 | return 0; |
967 | } |
968 | |
969 | static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr, |
970 | abi_ulong target_fds_addr, |
971 | int n) |
972 | { |
973 | if (target_fds_addr) { |
974 | if (copy_from_user_fdset(fds, target_fds_addr, n)) |
975 | return -TARGET_EFAULT; |
976 | *fds_ptr = fds; |
977 | } else { |
978 | *fds_ptr = NULL; |
979 | } |
980 | return 0; |
981 | } |
982 | |
983 | static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, |
984 | const fd_set *fds, |
985 | int n) |
986 | { |
987 | int i, nw, j, k; |
988 | abi_long v; |
989 | abi_ulong *target_fds; |
990 | |
991 | nw = DIV_ROUND_UP(n, TARGET_ABI_BITS); |
992 | if (!(target_fds = lock_user(VERIFY_WRITE, |
993 | target_fds_addr, |
994 | sizeof(abi_ulong) * nw, |
995 | 0))) |
996 | return -TARGET_EFAULT; |
997 | |
998 | k = 0; |
999 | for (i = 0; i < nw; i++) { |
1000 | v = 0; |
1001 | for (j = 0; j < TARGET_ABI_BITS; j++) { |
1002 | v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j); |
1003 | k++; |
1004 | } |
1005 | __put_user(v, &target_fds[i]); |
1006 | } |
1007 | |
1008 | unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); |
1009 | |
1010 | return 0; |
1011 | } |
1012 | |
1013 | #if defined(__alpha__) |
1014 | #define HOST_HZ 1024 |
1015 | #else |
1016 | #define HOST_HZ 100 |
1017 | #endif |
1018 | |
1019 | static inline abi_long host_to_target_clock_t(long ticks) |
1020 | { |
1021 | #if HOST_HZ == TARGET_HZ |
1022 | return ticks; |
1023 | #else |
1024 | return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; |
1025 | #endif |
1026 | } |
1027 | |
1028 | static inline abi_long host_to_target_rusage(abi_ulong target_addr, |
1029 | const struct rusage *rusage) |
1030 | { |
1031 | struct target_rusage *target_rusage; |
1032 | |
1033 | if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) |
1034 | return -TARGET_EFAULT; |
1035 | target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec); |
1036 | target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec); |
1037 | target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec); |
1038 | target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec); |
1039 | target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss); |
1040 | target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss); |
1041 | target_rusage->ru_idrss = tswapal(rusage->ru_idrss); |
1042 | target_rusage->ru_isrss = tswapal(rusage->ru_isrss); |
1043 | target_rusage->ru_minflt = tswapal(rusage->ru_minflt); |
1044 | target_rusage->ru_majflt = tswapal(rusage->ru_majflt); |
1045 | target_rusage->ru_nswap = tswapal(rusage->ru_nswap); |
1046 | target_rusage->ru_inblock = tswapal(rusage->ru_inblock); |
1047 | target_rusage->ru_oublock = tswapal(rusage->ru_oublock); |
1048 | target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd); |
1049 | target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv); |
1050 | target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals); |
1051 | target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw); |
1052 | target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw); |
1053 | unlock_user_struct(target_rusage, target_addr, 1); |
1054 | |
1055 | return 0; |
1056 | } |
1057 | |
1058 | static inline rlim_t target_to_host_rlim(abi_ulong target_rlim) |
1059 | { |
1060 | abi_ulong target_rlim_swap; |
1061 | rlim_t result; |
1062 | |
1063 | target_rlim_swap = tswapal(target_rlim); |
1064 | if (target_rlim_swap == TARGET_RLIM_INFINITY) |
1065 | return RLIM_INFINITY; |
1066 | |
1067 | result = target_rlim_swap; |
1068 | if (target_rlim_swap != (rlim_t)result) |
1069 | return RLIM_INFINITY; |
1070 | |
1071 | return result; |
1072 | } |
1073 | |
1074 | static inline abi_ulong host_to_target_rlim(rlim_t rlim) |
1075 | { |
1076 | abi_ulong target_rlim_swap; |
1077 | abi_ulong result; |
1078 | |
1079 | if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim) |
1080 | target_rlim_swap = TARGET_RLIM_INFINITY; |
1081 | else |
1082 | target_rlim_swap = rlim; |
1083 | result = tswapal(target_rlim_swap); |
1084 | |
1085 | return result; |
1086 | } |
1087 | |
1088 | static inline int target_to_host_resource(int code) |
1089 | { |
1090 | switch (code) { |
1091 | case TARGET_RLIMIT_AS: |
1092 | return RLIMIT_AS; |
1093 | case TARGET_RLIMIT_CORE: |
1094 | return RLIMIT_CORE; |
1095 | case TARGET_RLIMIT_CPU: |
1096 | return RLIMIT_CPU; |
1097 | case TARGET_RLIMIT_DATA: |
1098 | return RLIMIT_DATA; |
1099 | case TARGET_RLIMIT_FSIZE: |
1100 | return RLIMIT_FSIZE; |
1101 | case TARGET_RLIMIT_LOCKS: |
1102 | return RLIMIT_LOCKS; |
1103 | case TARGET_RLIMIT_MEMLOCK: |
1104 | return RLIMIT_MEMLOCK; |
1105 | case TARGET_RLIMIT_MSGQUEUE: |
1106 | return RLIMIT_MSGQUEUE; |
1107 | case TARGET_RLIMIT_NICE: |
1108 | return RLIMIT_NICE; |
1109 | case TARGET_RLIMIT_NOFILE: |
1110 | return RLIMIT_NOFILE; |
1111 | case TARGET_RLIMIT_NPROC: |
1112 | return RLIMIT_NPROC; |
1113 | case TARGET_RLIMIT_RSS: |
1114 | return RLIMIT_RSS; |
1115 | case TARGET_RLIMIT_RTPRIO: |
1116 | return RLIMIT_RTPRIO; |
1117 | case TARGET_RLIMIT_SIGPENDING: |
1118 | return RLIMIT_SIGPENDING; |
1119 | case TARGET_RLIMIT_STACK: |
1120 | return RLIMIT_STACK; |
1121 | default: |
1122 | return code; |
1123 | } |
1124 | } |
1125 | |
1126 | static inline abi_long copy_from_user_timeval(struct timeval *tv, |
1127 | abi_ulong target_tv_addr) |
1128 | { |
1129 | struct target_timeval *target_tv; |
1130 | |
1131 | if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) { |
1132 | return -TARGET_EFAULT; |
1133 | } |
1134 | |
1135 | __get_user(tv->tv_sec, &target_tv->tv_sec); |
1136 | __get_user(tv->tv_usec, &target_tv->tv_usec); |
1137 | |
1138 | unlock_user_struct(target_tv, target_tv_addr, 0); |
1139 | |
1140 | return 0; |
1141 | } |
1142 | |
1143 | static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, |
1144 | const struct timeval *tv) |
1145 | { |
1146 | struct target_timeval *target_tv; |
1147 | |
1148 | if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) { |
1149 | return -TARGET_EFAULT; |
1150 | } |
1151 | |
1152 | __put_user(tv->tv_sec, &target_tv->tv_sec); |
1153 | __put_user(tv->tv_usec, &target_tv->tv_usec); |
1154 | |
1155 | unlock_user_struct(target_tv, target_tv_addr, 1); |
1156 | |
1157 | return 0; |
1158 | } |
1159 | |
1160 | static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr, |
1161 | const struct timeval *tv) |
1162 | { |
1163 | struct target__kernel_sock_timeval *target_tv; |
1164 | |
1165 | if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) { |
1166 | return -TARGET_EFAULT; |
1167 | } |
1168 | |
1169 | __put_user(tv->tv_sec, &target_tv->tv_sec); |
1170 | __put_user(tv->tv_usec, &target_tv->tv_usec); |
1171 | |
1172 | unlock_user_struct(target_tv, target_tv_addr, 1); |
1173 | |
1174 | return 0; |
1175 | } |
1176 | |
1177 | static inline abi_long target_to_host_timespec(struct timespec *host_ts, |
1178 | abi_ulong target_addr) |
1179 | { |
1180 | struct target_timespec *target_ts; |
1181 | |
1182 | if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) { |
1183 | return -TARGET_EFAULT; |
1184 | } |
1185 | __get_user(host_ts->tv_sec, &target_ts->tv_sec); |
1186 | __get_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
1187 | unlock_user_struct(target_ts, target_addr, 0); |
1188 | return 0; |
1189 | } |
1190 | |
1191 | static inline abi_long host_to_target_timespec(abi_ulong target_addr, |
1192 | struct timespec *host_ts) |
1193 | { |
1194 | struct target_timespec *target_ts; |
1195 | |
1196 | if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) { |
1197 | return -TARGET_EFAULT; |
1198 | } |
1199 | __put_user(host_ts->tv_sec, &target_ts->tv_sec); |
1200 | __put_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
1201 | unlock_user_struct(target_ts, target_addr, 1); |
1202 | return 0; |
1203 | } |
1204 | |
1205 | static inline abi_long host_to_target_timespec64(abi_ulong target_addr, |
1206 | struct timespec *host_ts) |
1207 | { |
1208 | struct target__kernel_timespec *target_ts; |
1209 | |
1210 | if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) { |
1211 | return -TARGET_EFAULT; |
1212 | } |
1213 | __put_user(host_ts->tv_sec, &target_ts->tv_sec); |
1214 | __put_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
1215 | unlock_user_struct(target_ts, target_addr, 1); |
1216 | return 0; |
1217 | } |
1218 | |
1219 | static inline abi_long copy_from_user_timezone(struct timezone *tz, |
1220 | abi_ulong target_tz_addr) |
1221 | { |
1222 | struct target_timezone *target_tz; |
1223 | |
1224 | if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) { |
1225 | return -TARGET_EFAULT; |
1226 | } |
1227 | |
1228 | __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest); |
1229 | __get_user(tz->tz_dsttime, &target_tz->tz_dsttime); |
1230 | |
1231 | unlock_user_struct(target_tz, target_tz_addr, 0); |
1232 | |
1233 | return 0; |
1234 | } |
1235 | |
1236 | #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
1237 | #include <mqueue.h> |
1238 | |
1239 | static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr, |
1240 | abi_ulong target_mq_attr_addr) |
1241 | { |
1242 | struct target_mq_attr *target_mq_attr; |
1243 | |
1244 | if (!lock_user_struct(VERIFY_READ, target_mq_attr, |
1245 | target_mq_attr_addr, 1)) |
1246 | return -TARGET_EFAULT; |
1247 | |
1248 | __get_user(attr->mq_flags, &target_mq_attr->mq_flags); |
1249 | __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); |
1250 | __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); |
1251 | __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); |
1252 | |
1253 | unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0); |
1254 | |
1255 | return 0; |
1256 | } |
1257 | |
1258 | static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr, |
1259 | const struct mq_attr *attr) |
1260 | { |
1261 | struct target_mq_attr *target_mq_attr; |
1262 | |
1263 | if (!lock_user_struct(VERIFY_WRITE, target_mq_attr, |
1264 | target_mq_attr_addr, 0)) |
1265 | return -TARGET_EFAULT; |
1266 | |
1267 | __put_user(attr->mq_flags, &target_mq_attr->mq_flags); |
1268 | __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); |
1269 | __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); |
1270 | __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); |
1271 | |
1272 | unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1); |
1273 | |
1274 | return 0; |
1275 | } |
1276 | #endif |
1277 | |
1278 | #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) |
1279 | /* do_select() must return target values and target errnos. */ |
1280 | static abi_long do_select(int n, |
1281 | abi_ulong rfd_addr, abi_ulong wfd_addr, |
1282 | abi_ulong efd_addr, abi_ulong target_tv_addr) |
1283 | { |
1284 | fd_set rfds, wfds, efds; |
1285 | fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; |
1286 | struct timeval tv; |
1287 | struct timespec ts, *ts_ptr; |
1288 | abi_long ret; |
1289 | |
1290 | ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); |
1291 | if (ret) { |
1292 | return ret; |
1293 | } |
1294 | ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); |
1295 | if (ret) { |
1296 | return ret; |
1297 | } |
1298 | ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); |
1299 | if (ret) { |
1300 | return ret; |
1301 | } |
1302 | |
1303 | if (target_tv_addr) { |
1304 | if (copy_from_user_timeval(&tv, target_tv_addr)) |
1305 | return -TARGET_EFAULT; |
1306 | ts.tv_sec = tv.tv_sec; |
1307 | ts.tv_nsec = tv.tv_usec * 1000; |
1308 | ts_ptr = &ts; |
1309 | } else { |
1310 | ts_ptr = NULL; |
1311 | } |
1312 | |
1313 | ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, |
1314 | ts_ptr, NULL)); |
1315 | |
1316 | if (!is_error(ret)) { |
1317 | if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) |
1318 | return -TARGET_EFAULT; |
1319 | if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) |
1320 | return -TARGET_EFAULT; |
1321 | if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) |
1322 | return -TARGET_EFAULT; |
1323 | |
1324 | if (target_tv_addr) { |
1325 | tv.tv_sec = ts.tv_sec; |
1326 | tv.tv_usec = ts.tv_nsec / 1000; |
1327 | if (copy_to_user_timeval(target_tv_addr, &tv)) { |
1328 | return -TARGET_EFAULT; |
1329 | } |
1330 | } |
1331 | } |
1332 | |
1333 | return ret; |
1334 | } |
1335 | |
1336 | #if defined(TARGET_WANT_OLD_SYS_SELECT) |
1337 | static abi_long do_old_select(abi_ulong arg1) |
1338 | { |
1339 | struct target_sel_arg_struct *sel; |
1340 | abi_ulong inp, outp, exp, tvp; |
1341 | long nsel; |
1342 | |
1343 | if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) { |
1344 | return -TARGET_EFAULT; |
1345 | } |
1346 | |
1347 | nsel = tswapal(sel->n); |
1348 | inp = tswapal(sel->inp); |
1349 | outp = tswapal(sel->outp); |
1350 | exp = tswapal(sel->exp); |
1351 | tvp = tswapal(sel->tvp); |
1352 | |
1353 | unlock_user_struct(sel, arg1, 0); |
1354 | |
1355 | return do_select(nsel, inp, outp, exp, tvp); |
1356 | } |
1357 | #endif |
1358 | #endif |
1359 | |
1360 | static abi_long do_pipe2(int host_pipe[], int flags) |
1361 | { |
1362 | #ifdef CONFIG_PIPE2 |
1363 | return pipe2(host_pipe, flags); |
1364 | #else |
1365 | return -ENOSYS; |
1366 | #endif |
1367 | } |
1368 | |
1369 | static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, |
1370 | int flags, int is_pipe2) |
1371 | { |
1372 | int host_pipe[2]; |
1373 | abi_long ret; |
1374 | ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe); |
1375 | |
1376 | if (is_error(ret)) |
1377 | return get_errno(ret); |
1378 | |
1379 | /* Several targets have special calling conventions for the original |
1380 | pipe syscall, but didn't replicate this into the pipe2 syscall. */ |
1381 | if (!is_pipe2) { |
1382 | #if defined(TARGET_ALPHA) |
1383 | ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1]; |
1384 | return host_pipe[0]; |
1385 | #elif defined(TARGET_MIPS) |
1386 | ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1]; |
1387 | return host_pipe[0]; |
1388 | #elif defined(TARGET_SH4) |
1389 | ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; |
1390 | return host_pipe[0]; |
1391 | #elif defined(TARGET_SPARC) |
1392 | ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1]; |
1393 | return host_pipe[0]; |
1394 | #endif |
1395 | } |
1396 | |
1397 | if (put_user_s32(host_pipe[0], pipedes) |
1398 | || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0]))) |
1399 | return -TARGET_EFAULT; |
1400 | return get_errno(ret); |
1401 | } |
1402 | |
1403 | static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, |
1404 | abi_ulong target_addr, |
1405 | socklen_t len) |
1406 | { |
1407 | struct target_ip_mreqn *target_smreqn; |
1408 | |
1409 | target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); |
1410 | if (!target_smreqn) |
1411 | return -TARGET_EFAULT; |
1412 | mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; |
1413 | mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; |
1414 | if (len == sizeof(struct target_ip_mreqn)) |
1415 | mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex); |
1416 | unlock_user(target_smreqn, target_addr, 0); |
1417 | |
1418 | return 0; |
1419 | } |
1420 | |
1421 | static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr, |
1422 | abi_ulong target_addr, |
1423 | socklen_t len) |
1424 | { |
1425 | const socklen_t unix_maxlen = sizeof (struct sockaddr_un); |
1426 | sa_family_t sa_family; |
1427 | struct target_sockaddr *target_saddr; |
1428 | |
1429 | if (fd_trans_target_to_host_addr(fd)) { |
1430 | return fd_trans_target_to_host_addr(fd)(addr, target_addr, len); |
1431 | } |
1432 | |
1433 | target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); |
1434 | if (!target_saddr) |
1435 | return -TARGET_EFAULT; |
1436 | |
1437 | sa_family = tswap16(target_saddr->sa_family); |
1438 | |
1439 | /* Oops. The caller might send a incomplete sun_path; sun_path |
1440 | * must be terminated by \0 (see the manual page), but |
1441 | * unfortunately it is quite common to specify sockaddr_un |
1442 | * length as "strlen(x->sun_path)" while it should be |
1443 | * "strlen(...) + 1". We'll fix that here if needed. |
1444 | * Linux kernel has a similar feature. |
1445 | */ |
1446 | |
1447 | if (sa_family == AF_UNIX) { |
1448 | if (len < unix_maxlen && len > 0) { |
1449 | char *cp = (char*)target_saddr; |
1450 | |
1451 | if ( cp[len-1] && !cp[len] ) |
1452 | len++; |
1453 | } |
1454 | if (len > unix_maxlen) |
1455 | len = unix_maxlen; |
1456 | } |
1457 | |
1458 | memcpy(addr, target_saddr, len); |
1459 | addr->sa_family = sa_family; |
1460 | if (sa_family == AF_NETLINK) { |
1461 | struct sockaddr_nl *nladdr; |
1462 | |
1463 | nladdr = (struct sockaddr_nl *)addr; |
1464 | nladdr->nl_pid = tswap32(nladdr->nl_pid); |
1465 | nladdr->nl_groups = tswap32(nladdr->nl_groups); |
1466 | } else if (sa_family == AF_PACKET) { |
1467 | struct target_sockaddr_ll *lladdr; |
1468 | |
1469 | lladdr = (struct target_sockaddr_ll *)addr; |
1470 | lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex); |
1471 | lladdr->sll_hatype = tswap16(lladdr->sll_hatype); |
1472 | } |
1473 | unlock_user(target_saddr, target_addr, 0); |
1474 | |
1475 | return 0; |
1476 | } |
1477 | |
1478 | static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, |
1479 | struct sockaddr *addr, |
1480 | socklen_t len) |
1481 | { |
1482 | struct target_sockaddr *target_saddr; |
1483 | |
1484 | if (len == 0) { |
1485 | return 0; |
1486 | } |
1487 | assert(addr); |
1488 | |
1489 | target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); |
1490 | if (!target_saddr) |
1491 | return -TARGET_EFAULT; |
1492 | memcpy(target_saddr, addr, len); |
1493 | if (len >= offsetof(struct target_sockaddr, sa_family) + |
1494 | sizeof(target_saddr->sa_family)) { |
1495 | target_saddr->sa_family = tswap16(addr->sa_family); |
1496 | } |
1497 | if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) { |
1498 | struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr; |
1499 | target_nl->nl_pid = tswap32(target_nl->nl_pid); |
1500 | target_nl->nl_groups = tswap32(target_nl->nl_groups); |
1501 | } else if (addr->sa_family == AF_PACKET) { |
1502 | struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr; |
1503 | target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex); |
1504 | target_ll->sll_hatype = tswap16(target_ll->sll_hatype); |
1505 | } else if (addr->sa_family == AF_INET6 && |
1506 | len >= sizeof(struct target_sockaddr_in6)) { |
1507 | struct target_sockaddr_in6 *target_in6 = |
1508 | (struct target_sockaddr_in6 *)target_saddr; |
1509 | target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id); |
1510 | } |
1511 | unlock_user(target_saddr, target_addr, len); |
1512 | |
1513 | return 0; |
1514 | } |
1515 | |
1516 | static inline abi_long target_to_host_cmsg(struct msghdr *msgh, |
1517 | struct target_msghdr *target_msgh) |
1518 | { |
1519 | struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); |
1520 | abi_long msg_controllen; |
1521 | abi_ulong target_cmsg_addr; |
1522 | struct target_cmsghdr *target_cmsg, *target_cmsg_start; |
1523 | socklen_t space = 0; |
1524 | |
1525 | msg_controllen = tswapal(target_msgh->msg_controllen); |
1526 | if (msg_controllen < sizeof (struct target_cmsghdr)) |
1527 | goto the_end; |
1528 | target_cmsg_addr = tswapal(target_msgh->msg_control); |
1529 | target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); |
1530 | target_cmsg_start = target_cmsg; |
1531 | if (!target_cmsg) |
1532 | return -TARGET_EFAULT; |
1533 | |
1534 | while (cmsg && target_cmsg) { |
1535 | void *data = CMSG_DATA(cmsg); |
1536 | void *target_data = TARGET_CMSG_DATA(target_cmsg); |
1537 | |
1538 | int len = tswapal(target_cmsg->cmsg_len) |
1539 | - sizeof(struct target_cmsghdr); |
1540 | |
1541 | space += CMSG_SPACE(len); |
1542 | if (space > msgh->msg_controllen) { |
1543 | space -= CMSG_SPACE(len); |
1544 | /* This is a QEMU bug, since we allocated the payload |
1545 | * area ourselves (unlike overflow in host-to-target |
1546 | * conversion, which is just the guest giving us a buffer |
1547 | * that's too small). It can't happen for the payload types |
1548 | * we currently support; if it becomes an issue in future |
1549 | * we would need to improve our allocation strategy to |
1550 | * something more intelligent than "twice the size of the |
1551 | * target buffer we're reading from". |
1552 | */ |
1553 | gemu_log("Host cmsg overflow\n" ); |
1554 | break; |
1555 | } |
1556 | |
1557 | if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) { |
1558 | cmsg->cmsg_level = SOL_SOCKET; |
1559 | } else { |
1560 | cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); |
1561 | } |
1562 | cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); |
1563 | cmsg->cmsg_len = CMSG_LEN(len); |
1564 | |
1565 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { |
1566 | int *fd = (int *)data; |
1567 | int *target_fd = (int *)target_data; |
1568 | int i, numfds = len / sizeof(int); |
1569 | |
1570 | for (i = 0; i < numfds; i++) { |
1571 | __get_user(fd[i], target_fd + i); |
1572 | } |
1573 | } else if (cmsg->cmsg_level == SOL_SOCKET |
1574 | && cmsg->cmsg_type == SCM_CREDENTIALS) { |
1575 | struct ucred *cred = (struct ucred *)data; |
1576 | struct target_ucred *target_cred = |
1577 | (struct target_ucred *)target_data; |
1578 | |
1579 | __get_user(cred->pid, &target_cred->pid); |
1580 | __get_user(cred->uid, &target_cred->uid); |
1581 | __get_user(cred->gid, &target_cred->gid); |
1582 | } else { |
1583 | gemu_log("Unsupported ancillary data: %d/%d\n" , |
1584 | cmsg->cmsg_level, cmsg->cmsg_type); |
1585 | memcpy(data, target_data, len); |
1586 | } |
1587 | |
1588 | cmsg = CMSG_NXTHDR(msgh, cmsg); |
1589 | target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg, |
1590 | target_cmsg_start); |
1591 | } |
1592 | unlock_user(target_cmsg, target_cmsg_addr, 0); |
1593 | the_end: |
1594 | msgh->msg_controllen = space; |
1595 | return 0; |
1596 | } |
1597 | |
1598 | static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, |
1599 | struct msghdr *msgh) |
1600 | { |
1601 | struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); |
1602 | abi_long msg_controllen; |
1603 | abi_ulong target_cmsg_addr; |
1604 | struct target_cmsghdr *target_cmsg, *target_cmsg_start; |
1605 | socklen_t space = 0; |
1606 | |
1607 | msg_controllen = tswapal(target_msgh->msg_controllen); |
1608 | if (msg_controllen < sizeof (struct target_cmsghdr)) |
1609 | goto the_end; |
1610 | target_cmsg_addr = tswapal(target_msgh->msg_control); |
1611 | target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); |
1612 | target_cmsg_start = target_cmsg; |
1613 | if (!target_cmsg) |
1614 | return -TARGET_EFAULT; |
1615 | |
1616 | while (cmsg && target_cmsg) { |
1617 | void *data = CMSG_DATA(cmsg); |
1618 | void *target_data = TARGET_CMSG_DATA(target_cmsg); |
1619 | |
1620 | int len = cmsg->cmsg_len - sizeof(struct cmsghdr); |
1621 | int tgt_len, tgt_space; |
1622 | |
1623 | /* We never copy a half-header but may copy half-data; |
1624 | * this is Linux's behaviour in put_cmsg(). Note that |
1625 | * truncation here is a guest problem (which we report |
1626 | * to the guest via the CTRUNC bit), unlike truncation |
1627 | * in target_to_host_cmsg, which is a QEMU bug. |
1628 | */ |
1629 | if (msg_controllen < sizeof(struct target_cmsghdr)) { |
1630 | target_msgh->msg_flags |= tswap32(MSG_CTRUNC); |
1631 | break; |
1632 | } |
1633 | |
1634 | if (cmsg->cmsg_level == SOL_SOCKET) { |
1635 | target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET); |
1636 | } else { |
1637 | target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); |
1638 | } |
1639 | target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); |
1640 | |
1641 | /* Payload types which need a different size of payload on |
1642 | * the target must adjust tgt_len here. |
1643 | */ |
1644 | tgt_len = len; |
1645 | switch (cmsg->cmsg_level) { |
1646 | case SOL_SOCKET: |
1647 | switch (cmsg->cmsg_type) { |
1648 | case SO_TIMESTAMP: |
1649 | tgt_len = sizeof(struct target_timeval); |
1650 | break; |
1651 | default: |
1652 | break; |
1653 | } |
1654 | break; |
1655 | default: |
1656 | break; |
1657 | } |
1658 | |
1659 | if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) { |
1660 | target_msgh->msg_flags |= tswap32(MSG_CTRUNC); |
1661 | tgt_len = msg_controllen - sizeof(struct target_cmsghdr); |
1662 | } |
1663 | |
1664 | /* We must now copy-and-convert len bytes of payload |
1665 | * into tgt_len bytes of destination space. Bear in mind |
1666 | * that in both source and destination we may be dealing |
1667 | * with a truncated value! |
1668 | */ |
1669 | switch (cmsg->cmsg_level) { |
1670 | case SOL_SOCKET: |
1671 | switch (cmsg->cmsg_type) { |
1672 | case SCM_RIGHTS: |
1673 | { |
1674 | int *fd = (int *)data; |
1675 | int *target_fd = (int *)target_data; |
1676 | int i, numfds = tgt_len / sizeof(int); |
1677 | |
1678 | for (i = 0; i < numfds; i++) { |
1679 | __put_user(fd[i], target_fd + i); |
1680 | } |
1681 | break; |
1682 | } |
1683 | case SO_TIMESTAMP: |
1684 | { |
1685 | struct timeval *tv = (struct timeval *)data; |
1686 | struct target_timeval *target_tv = |
1687 | (struct target_timeval *)target_data; |
1688 | |
1689 | if (len != sizeof(struct timeval) || |
1690 | tgt_len != sizeof(struct target_timeval)) { |
1691 | goto unimplemented; |
1692 | } |
1693 | |
1694 | /* copy struct timeval to target */ |
1695 | __put_user(tv->tv_sec, &target_tv->tv_sec); |
1696 | __put_user(tv->tv_usec, &target_tv->tv_usec); |
1697 | break; |
1698 | } |
1699 | case SCM_CREDENTIALS: |
1700 | { |
1701 | struct ucred *cred = (struct ucred *)data; |
1702 | struct target_ucred *target_cred = |
1703 | (struct target_ucred *)target_data; |
1704 | |
1705 | __put_user(cred->pid, &target_cred->pid); |
1706 | __put_user(cred->uid, &target_cred->uid); |
1707 | __put_user(cred->gid, &target_cred->gid); |
1708 | break; |
1709 | } |
1710 | default: |
1711 | goto unimplemented; |
1712 | } |
1713 | break; |
1714 | |
1715 | case SOL_IP: |
1716 | switch (cmsg->cmsg_type) { |
1717 | case IP_TTL: |
1718 | { |
1719 | uint32_t *v = (uint32_t *)data; |
1720 | uint32_t *t_int = (uint32_t *)target_data; |
1721 | |
1722 | if (len != sizeof(uint32_t) || |
1723 | tgt_len != sizeof(uint32_t)) { |
1724 | goto unimplemented; |
1725 | } |
1726 | __put_user(*v, t_int); |
1727 | break; |
1728 | } |
1729 | case IP_RECVERR: |
1730 | { |
1731 | struct errhdr_t { |
1732 | struct sock_extended_err ee; |
1733 | struct sockaddr_in offender; |
1734 | }; |
1735 | struct errhdr_t *errh = (struct errhdr_t *)data; |
1736 | struct errhdr_t *target_errh = |
1737 | (struct errhdr_t *)target_data; |
1738 | |
1739 | if (len != sizeof(struct errhdr_t) || |
1740 | tgt_len != sizeof(struct errhdr_t)) { |
1741 | goto unimplemented; |
1742 | } |
1743 | __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno); |
1744 | __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin); |
1745 | __put_user(errh->ee.ee_type, &target_errh->ee.ee_type); |
1746 | __put_user(errh->ee.ee_code, &target_errh->ee.ee_code); |
1747 | __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad); |
1748 | __put_user(errh->ee.ee_info, &target_errh->ee.ee_info); |
1749 | __put_user(errh->ee.ee_data, &target_errh->ee.ee_data); |
1750 | host_to_target_sockaddr((unsigned long) &target_errh->offender, |
1751 | (void *) &errh->offender, sizeof(errh->offender)); |
1752 | break; |
1753 | } |
1754 | default: |
1755 | goto unimplemented; |
1756 | } |
1757 | break; |
1758 | |
1759 | case SOL_IPV6: |
1760 | switch (cmsg->cmsg_type) { |
1761 | case IPV6_HOPLIMIT: |
1762 | { |
1763 | uint32_t *v = (uint32_t *)data; |
1764 | uint32_t *t_int = (uint32_t *)target_data; |
1765 | |
1766 | if (len != sizeof(uint32_t) || |
1767 | tgt_len != sizeof(uint32_t)) { |
1768 | goto unimplemented; |
1769 | } |
1770 | __put_user(*v, t_int); |
1771 | break; |
1772 | } |
1773 | case IPV6_RECVERR: |
1774 | { |
1775 | struct errhdr6_t { |
1776 | struct sock_extended_err ee; |
1777 | struct sockaddr_in6 offender; |
1778 | }; |
1779 | struct errhdr6_t *errh = (struct errhdr6_t *)data; |
1780 | struct errhdr6_t *target_errh = |
1781 | (struct errhdr6_t *)target_data; |
1782 | |
1783 | if (len != sizeof(struct errhdr6_t) || |
1784 | tgt_len != sizeof(struct errhdr6_t)) { |
1785 | goto unimplemented; |
1786 | } |
1787 | __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno); |
1788 | __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin); |
1789 | __put_user(errh->ee.ee_type, &target_errh->ee.ee_type); |
1790 | __put_user(errh->ee.ee_code, &target_errh->ee.ee_code); |
1791 | __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad); |
1792 | __put_user(errh->ee.ee_info, &target_errh->ee.ee_info); |
1793 | __put_user(errh->ee.ee_data, &target_errh->ee.ee_data); |
1794 | host_to_target_sockaddr((unsigned long) &target_errh->offender, |
1795 | (void *) &errh->offender, sizeof(errh->offender)); |
1796 | break; |
1797 | } |
1798 | default: |
1799 | goto unimplemented; |
1800 | } |
1801 | break; |
1802 | |
1803 | default: |
1804 | unimplemented: |
1805 | gemu_log("Unsupported ancillary data: %d/%d\n" , |
1806 | cmsg->cmsg_level, cmsg->cmsg_type); |
1807 | memcpy(target_data, data, MIN(len, tgt_len)); |
1808 | if (tgt_len > len) { |
1809 | memset(target_data + len, 0, tgt_len - len); |
1810 | } |
1811 | } |
1812 | |
1813 | target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len)); |
1814 | tgt_space = TARGET_CMSG_SPACE(tgt_len); |
1815 | if (msg_controllen < tgt_space) { |
1816 | tgt_space = msg_controllen; |
1817 | } |
1818 | msg_controllen -= tgt_space; |
1819 | space += tgt_space; |
1820 | cmsg = CMSG_NXTHDR(msgh, cmsg); |
1821 | target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg, |
1822 | target_cmsg_start); |
1823 | } |
1824 | unlock_user(target_cmsg, target_cmsg_addr, space); |
1825 | the_end: |
1826 | target_msgh->msg_controllen = tswapal(space); |
1827 | return 0; |
1828 | } |
1829 | |
1830 | /* do_setsockopt() Must return target values and target errnos. */ |
1831 | static abi_long do_setsockopt(int sockfd, int level, int optname, |
1832 | abi_ulong optval_addr, socklen_t optlen) |
1833 | { |
1834 | abi_long ret; |
1835 | int val; |
1836 | struct ip_mreqn *ip_mreq; |
1837 | struct ip_mreq_source *ip_mreq_source; |
1838 | |
1839 | switch(level) { |
1840 | case SOL_TCP: |
1841 | /* TCP options all take an 'int' value. */ |
1842 | if (optlen < sizeof(uint32_t)) |
1843 | return -TARGET_EINVAL; |
1844 | |
1845 | if (get_user_u32(val, optval_addr)) |
1846 | return -TARGET_EFAULT; |
1847 | ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); |
1848 | break; |
1849 | case SOL_IP: |
1850 | switch(optname) { |
1851 | case IP_TOS: |
1852 | case IP_TTL: |
1853 | case IP_HDRINCL: |
1854 | case IP_ROUTER_ALERT: |
1855 | case IP_RECVOPTS: |
1856 | case IP_RETOPTS: |
1857 | case IP_PKTINFO: |
1858 | case IP_MTU_DISCOVER: |
1859 | case IP_RECVERR: |
1860 | case IP_RECVTTL: |
1861 | case IP_RECVTOS: |
1862 | #ifdef IP_FREEBIND |
1863 | case IP_FREEBIND: |
1864 | #endif |
1865 | case IP_MULTICAST_TTL: |
1866 | case IP_MULTICAST_LOOP: |
1867 | val = 0; |
1868 | if (optlen >= sizeof(uint32_t)) { |
1869 | if (get_user_u32(val, optval_addr)) |
1870 | return -TARGET_EFAULT; |
1871 | } else if (optlen >= 1) { |
1872 | if (get_user_u8(val, optval_addr)) |
1873 | return -TARGET_EFAULT; |
1874 | } |
1875 | ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); |
1876 | break; |
1877 | case IP_ADD_MEMBERSHIP: |
1878 | case IP_DROP_MEMBERSHIP: |
1879 | if (optlen < sizeof (struct target_ip_mreq) || |
1880 | optlen > sizeof (struct target_ip_mreqn)) |
1881 | return -TARGET_EINVAL; |
1882 | |
1883 | ip_mreq = (struct ip_mreqn *) alloca(optlen); |
1884 | target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); |
1885 | ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); |
1886 | break; |
1887 | |
1888 | case IP_BLOCK_SOURCE: |
1889 | case IP_UNBLOCK_SOURCE: |
1890 | case IP_ADD_SOURCE_MEMBERSHIP: |
1891 | case IP_DROP_SOURCE_MEMBERSHIP: |
1892 | if (optlen != sizeof (struct target_ip_mreq_source)) |
1893 | return -TARGET_EINVAL; |
1894 | |
1895 | ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); |
1896 | ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); |
1897 | unlock_user (ip_mreq_source, optval_addr, 0); |
1898 | break; |
1899 | |
1900 | default: |
1901 | goto unimplemented; |
1902 | } |
1903 | break; |
1904 | case SOL_IPV6: |
1905 | switch (optname) { |
1906 | case IPV6_MTU_DISCOVER: |
1907 | case IPV6_MTU: |
1908 | case IPV6_V6ONLY: |
1909 | case IPV6_RECVPKTINFO: |
1910 | case IPV6_UNICAST_HOPS: |
1911 | case IPV6_MULTICAST_HOPS: |
1912 | case IPV6_MULTICAST_LOOP: |
1913 | case IPV6_RECVERR: |
1914 | case IPV6_RECVHOPLIMIT: |
1915 | case IPV6_2292HOPLIMIT: |
1916 | case IPV6_CHECKSUM: |
1917 | case IPV6_ADDRFORM: |
1918 | case IPV6_2292PKTINFO: |
1919 | case IPV6_RECVTCLASS: |
1920 | case IPV6_RECVRTHDR: |
1921 | case IPV6_2292RTHDR: |
1922 | case IPV6_RECVHOPOPTS: |
1923 | case IPV6_2292HOPOPTS: |
1924 | case IPV6_RECVDSTOPTS: |
1925 | case IPV6_2292DSTOPTS: |
1926 | case IPV6_TCLASS: |
1927 | #ifdef IPV6_RECVPATHMTU |
1928 | case IPV6_RECVPATHMTU: |
1929 | #endif |
1930 | #ifdef IPV6_TRANSPARENT |
1931 | case IPV6_TRANSPARENT: |
1932 | #endif |
1933 | #ifdef IPV6_FREEBIND |
1934 | case IPV6_FREEBIND: |
1935 | #endif |
1936 | #ifdef IPV6_RECVORIGDSTADDR |
1937 | case IPV6_RECVORIGDSTADDR: |
1938 | #endif |
1939 | val = 0; |
1940 | if (optlen < sizeof(uint32_t)) { |
1941 | return -TARGET_EINVAL; |
1942 | } |
1943 | if (get_user_u32(val, optval_addr)) { |
1944 | return -TARGET_EFAULT; |
1945 | } |
1946 | ret = get_errno(setsockopt(sockfd, level, optname, |
1947 | &val, sizeof(val))); |
1948 | break; |
1949 | case IPV6_PKTINFO: |
1950 | { |
1951 | struct in6_pktinfo pki; |
1952 | |
1953 | if (optlen < sizeof(pki)) { |
1954 | return -TARGET_EINVAL; |
1955 | } |
1956 | |
1957 | if (copy_from_user(&pki, optval_addr, sizeof(pki))) { |
1958 | return -TARGET_EFAULT; |
1959 | } |
1960 | |
1961 | pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex); |
1962 | |
1963 | ret = get_errno(setsockopt(sockfd, level, optname, |
1964 | &pki, sizeof(pki))); |
1965 | break; |
1966 | } |
1967 | case IPV6_ADD_MEMBERSHIP: |
1968 | case IPV6_DROP_MEMBERSHIP: |
1969 | { |
1970 | struct ipv6_mreq ipv6mreq; |
1971 | |
1972 | if (optlen < sizeof(ipv6mreq)) { |
1973 | return -TARGET_EINVAL; |
1974 | } |
1975 | |
1976 | if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) { |
1977 | return -TARGET_EFAULT; |
1978 | } |
1979 | |
1980 | ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface); |
1981 | |
1982 | ret = get_errno(setsockopt(sockfd, level, optname, |
1983 | &ipv6mreq, sizeof(ipv6mreq))); |
1984 | break; |
1985 | } |
1986 | default: |
1987 | goto unimplemented; |
1988 | } |
1989 | break; |
1990 | case SOL_ICMPV6: |
1991 | switch (optname) { |
1992 | case ICMPV6_FILTER: |
1993 | { |
1994 | struct icmp6_filter icmp6f; |
1995 | |
1996 | if (optlen > sizeof(icmp6f)) { |
1997 | optlen = sizeof(icmp6f); |
1998 | } |
1999 | |
2000 | if (copy_from_user(&icmp6f, optval_addr, optlen)) { |
2001 | return -TARGET_EFAULT; |
2002 | } |
2003 | |
2004 | for (val = 0; val < 8; val++) { |
2005 | icmp6f.data[val] = tswap32(icmp6f.data[val]); |
2006 | } |
2007 | |
2008 | ret = get_errno(setsockopt(sockfd, level, optname, |
2009 | &icmp6f, optlen)); |
2010 | break; |
2011 | } |
2012 | default: |
2013 | goto unimplemented; |
2014 | } |
2015 | break; |
2016 | case SOL_RAW: |
2017 | switch (optname) { |
2018 | case ICMP_FILTER: |
2019 | case IPV6_CHECKSUM: |
2020 | /* those take an u32 value */ |
2021 | if (optlen < sizeof(uint32_t)) { |
2022 | return -TARGET_EINVAL; |
2023 | } |
2024 | |
2025 | if (get_user_u32(val, optval_addr)) { |
2026 | return -TARGET_EFAULT; |
2027 | } |
2028 | ret = get_errno(setsockopt(sockfd, level, optname, |
2029 | &val, sizeof(val))); |
2030 | break; |
2031 | |
2032 | default: |
2033 | goto unimplemented; |
2034 | } |
2035 | break; |
2036 | #if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE) |
2037 | case SOL_ALG: |
2038 | switch (optname) { |
2039 | case ALG_SET_KEY: |
2040 | { |
2041 | char *alg_key = g_malloc(optlen); |
2042 | |
2043 | if (!alg_key) { |
2044 | return -TARGET_ENOMEM; |
2045 | } |
2046 | if (copy_from_user(alg_key, optval_addr, optlen)) { |
2047 | g_free(alg_key); |
2048 | return -TARGET_EFAULT; |
2049 | } |
2050 | ret = get_errno(setsockopt(sockfd, level, optname, |
2051 | alg_key, optlen)); |
2052 | g_free(alg_key); |
2053 | break; |
2054 | } |
2055 | case ALG_SET_AEAD_AUTHSIZE: |
2056 | { |
2057 | ret = get_errno(setsockopt(sockfd, level, optname, |
2058 | NULL, optlen)); |
2059 | break; |
2060 | } |
2061 | default: |
2062 | goto unimplemented; |
2063 | } |
2064 | break; |
2065 | #endif |
2066 | case TARGET_SOL_SOCKET: |
2067 | switch (optname) { |
2068 | case TARGET_SO_RCVTIMEO: |
2069 | { |
2070 | struct timeval tv; |
2071 | |
2072 | optname = SO_RCVTIMEO; |
2073 | |
2074 | set_timeout: |
2075 | if (optlen != sizeof(struct target_timeval)) { |
2076 | return -TARGET_EINVAL; |
2077 | } |
2078 | |
2079 | if (copy_from_user_timeval(&tv, optval_addr)) { |
2080 | return -TARGET_EFAULT; |
2081 | } |
2082 | |
2083 | ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, |
2084 | &tv, sizeof(tv))); |
2085 | return ret; |
2086 | } |
2087 | case TARGET_SO_SNDTIMEO: |
2088 | optname = SO_SNDTIMEO; |
2089 | goto set_timeout; |
2090 | case TARGET_SO_ATTACH_FILTER: |
2091 | { |
2092 | struct target_sock_fprog *tfprog; |
2093 | struct target_sock_filter *tfilter; |
2094 | struct sock_fprog fprog; |
2095 | struct sock_filter *filter; |
2096 | int i; |
2097 | |
2098 | if (optlen != sizeof(*tfprog)) { |
2099 | return -TARGET_EINVAL; |
2100 | } |
2101 | if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) { |
2102 | return -TARGET_EFAULT; |
2103 | } |
2104 | if (!lock_user_struct(VERIFY_READ, tfilter, |
2105 | tswapal(tfprog->filter), 0)) { |
2106 | unlock_user_struct(tfprog, optval_addr, 1); |
2107 | return -TARGET_EFAULT; |
2108 | } |
2109 | |
2110 | fprog.len = tswap16(tfprog->len); |
2111 | filter = g_try_new(struct sock_filter, fprog.len); |
2112 | if (filter == NULL) { |
2113 | unlock_user_struct(tfilter, tfprog->filter, 1); |
2114 | unlock_user_struct(tfprog, optval_addr, 1); |
2115 | return -TARGET_ENOMEM; |
2116 | } |
2117 | for (i = 0; i < fprog.len; i++) { |
2118 | filter[i].code = tswap16(tfilter[i].code); |
2119 | filter[i].jt = tfilter[i].jt; |
2120 | filter[i].jf = tfilter[i].jf; |
2121 | filter[i].k = tswap32(tfilter[i].k); |
2122 | } |
2123 | fprog.filter = filter; |
2124 | |
2125 | ret = get_errno(setsockopt(sockfd, SOL_SOCKET, |
2126 | SO_ATTACH_FILTER, &fprog, sizeof(fprog))); |
2127 | g_free(filter); |
2128 | |
2129 | unlock_user_struct(tfilter, tfprog->filter, 1); |
2130 | unlock_user_struct(tfprog, optval_addr, 1); |
2131 | return ret; |
2132 | } |
2133 | case TARGET_SO_BINDTODEVICE: |
2134 | { |
2135 | char *dev_ifname, *addr_ifname; |
2136 | |
2137 | if (optlen > IFNAMSIZ - 1) { |
2138 | optlen = IFNAMSIZ - 1; |
2139 | } |
2140 | dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1); |
2141 | if (!dev_ifname) { |
2142 | return -TARGET_EFAULT; |
2143 | } |
2144 | optname = SO_BINDTODEVICE; |
2145 | addr_ifname = alloca(IFNAMSIZ); |
2146 | memcpy(addr_ifname, dev_ifname, optlen); |
2147 | addr_ifname[optlen] = 0; |
2148 | ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, |
2149 | addr_ifname, optlen)); |
2150 | unlock_user (dev_ifname, optval_addr, 0); |
2151 | return ret; |
2152 | } |
2153 | case TARGET_SO_LINGER: |
2154 | { |
2155 | struct linger lg; |
2156 | struct target_linger *tlg; |
2157 | |
2158 | if (optlen != sizeof(struct target_linger)) { |
2159 | return -TARGET_EINVAL; |
2160 | } |
2161 | if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) { |
2162 | return -TARGET_EFAULT; |
2163 | } |
2164 | __get_user(lg.l_onoff, &tlg->l_onoff); |
2165 | __get_user(lg.l_linger, &tlg->l_linger); |
2166 | ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER, |
2167 | &lg, sizeof(lg))); |
2168 | unlock_user_struct(tlg, optval_addr, 0); |
2169 | return ret; |
2170 | } |
2171 | /* Options with 'int' argument. */ |
2172 | case TARGET_SO_DEBUG: |
2173 | optname = SO_DEBUG; |
2174 | break; |
2175 | case TARGET_SO_REUSEADDR: |
2176 | optname = SO_REUSEADDR; |
2177 | break; |
2178 | #ifdef SO_REUSEPORT |
2179 | case TARGET_SO_REUSEPORT: |
2180 | optname = SO_REUSEPORT; |
2181 | break; |
2182 | #endif |
2183 | case TARGET_SO_TYPE: |
2184 | optname = SO_TYPE; |
2185 | break; |
2186 | case TARGET_SO_ERROR: |
2187 | optname = SO_ERROR; |
2188 | break; |
2189 | case TARGET_SO_DONTROUTE: |
2190 | optname = SO_DONTROUTE; |
2191 | break; |
2192 | case TARGET_SO_BROADCAST: |
2193 | optname = SO_BROADCAST; |
2194 | break; |
2195 | case TARGET_SO_SNDBUF: |
2196 | optname = SO_SNDBUF; |
2197 | break; |
2198 | case TARGET_SO_SNDBUFFORCE: |
2199 | optname = SO_SNDBUFFORCE; |
2200 | break; |
2201 | case TARGET_SO_RCVBUF: |
2202 | optname = SO_RCVBUF; |
2203 | break; |
2204 | case TARGET_SO_RCVBUFFORCE: |
2205 | optname = SO_RCVBUFFORCE; |
2206 | break; |
2207 | case TARGET_SO_KEEPALIVE: |
2208 | optname = SO_KEEPALIVE; |
2209 | break; |
2210 | case TARGET_SO_OOBINLINE: |
2211 | optname = SO_OOBINLINE; |
2212 | break; |
2213 | case TARGET_SO_NO_CHECK: |
2214 | optname = SO_NO_CHECK; |
2215 | break; |
2216 | case TARGET_SO_PRIORITY: |
2217 | optname = SO_PRIORITY; |
2218 | break; |
2219 | #ifdef SO_BSDCOMPAT |
2220 | case TARGET_SO_BSDCOMPAT: |
2221 | optname = SO_BSDCOMPAT; |
2222 | break; |
2223 | #endif |
2224 | case TARGET_SO_PASSCRED: |
2225 | optname = SO_PASSCRED; |
2226 | break; |
2227 | case TARGET_SO_PASSSEC: |
2228 | optname = SO_PASSSEC; |
2229 | break; |
2230 | case TARGET_SO_TIMESTAMP: |
2231 | optname = SO_TIMESTAMP; |
2232 | break; |
2233 | case TARGET_SO_RCVLOWAT: |
2234 | optname = SO_RCVLOWAT; |
2235 | break; |
2236 | default: |
2237 | goto unimplemented; |
2238 | } |
2239 | if (optlen < sizeof(uint32_t)) |
2240 | return -TARGET_EINVAL; |
2241 | |
2242 | if (get_user_u32(val, optval_addr)) |
2243 | return -TARGET_EFAULT; |
2244 | ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); |
2245 | break; |
2246 | default: |
2247 | unimplemented: |
2248 | gemu_log("Unsupported setsockopt level=%d optname=%d\n" , level, optname); |
2249 | ret = -TARGET_ENOPROTOOPT; |
2250 | } |
2251 | return ret; |
2252 | } |
2253 | |
2254 | /* do_getsockopt() Must return target values and target errnos. */ |
2255 | static abi_long do_getsockopt(int sockfd, int level, int optname, |
2256 | abi_ulong optval_addr, abi_ulong optlen) |
2257 | { |
2258 | abi_long ret; |
2259 | int len, val; |
2260 | socklen_t lv; |
2261 | |
2262 | switch(level) { |
2263 | case TARGET_SOL_SOCKET: |
2264 | level = SOL_SOCKET; |
2265 | switch (optname) { |
2266 | /* These don't just return a single integer */ |
2267 | case TARGET_SO_RCVTIMEO: |
2268 | case TARGET_SO_SNDTIMEO: |
2269 | case TARGET_SO_PEERNAME: |
2270 | goto unimplemented; |
2271 | case TARGET_SO_PEERCRED: { |
2272 | struct ucred cr; |
2273 | socklen_t crlen; |
2274 | struct target_ucred *tcr; |
2275 | |
2276 | if (get_user_u32(len, optlen)) { |
2277 | return -TARGET_EFAULT; |
2278 | } |
2279 | if (len < 0) { |
2280 | return -TARGET_EINVAL; |
2281 | } |
2282 | |
2283 | crlen = sizeof(cr); |
2284 | ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED, |
2285 | &cr, &crlen)); |
2286 | if (ret < 0) { |
2287 | return ret; |
2288 | } |
2289 | if (len > crlen) { |
2290 | len = crlen; |
2291 | } |
2292 | if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) { |
2293 | return -TARGET_EFAULT; |
2294 | } |
2295 | __put_user(cr.pid, &tcr->pid); |
2296 | __put_user(cr.uid, &tcr->uid); |
2297 | __put_user(cr.gid, &tcr->gid); |
2298 | unlock_user_struct(tcr, optval_addr, 1); |
2299 | if (put_user_u32(len, optlen)) { |
2300 | return -TARGET_EFAULT; |
2301 | } |
2302 | break; |
2303 | } |
2304 | case TARGET_SO_LINGER: |
2305 | { |
2306 | struct linger lg; |
2307 | socklen_t lglen; |
2308 | struct target_linger *tlg; |
2309 | |
2310 | if (get_user_u32(len, optlen)) { |
2311 | return -TARGET_EFAULT; |
2312 | } |
2313 | if (len < 0) { |
2314 | return -TARGET_EINVAL; |
2315 | } |
2316 | |
2317 | lglen = sizeof(lg); |
2318 | ret = get_errno(getsockopt(sockfd, level, SO_LINGER, |
2319 | &lg, &lglen)); |
2320 | if (ret < 0) { |
2321 | return ret; |
2322 | } |
2323 | if (len > lglen) { |
2324 | len = lglen; |
2325 | } |
2326 | if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) { |
2327 | return -TARGET_EFAULT; |
2328 | } |
2329 | __put_user(lg.l_onoff, &tlg->l_onoff); |
2330 | __put_user(lg.l_linger, &tlg->l_linger); |
2331 | unlock_user_struct(tlg, optval_addr, 1); |
2332 | if (put_user_u32(len, optlen)) { |
2333 | return -TARGET_EFAULT; |
2334 | } |
2335 | break; |
2336 | } |
2337 | /* Options with 'int' argument. */ |
2338 | case TARGET_SO_DEBUG: |
2339 | optname = SO_DEBUG; |
2340 | goto int_case; |
2341 | case TARGET_SO_REUSEADDR: |
2342 | optname = SO_REUSEADDR; |
2343 | goto int_case; |
2344 | #ifdef SO_REUSEPORT |
2345 | case TARGET_SO_REUSEPORT: |
2346 | optname = SO_REUSEPORT; |
2347 | goto int_case; |
2348 | #endif |
2349 | case TARGET_SO_TYPE: |
2350 | optname = SO_TYPE; |
2351 | goto int_case; |
2352 | case TARGET_SO_ERROR: |
2353 | optname = SO_ERROR; |
2354 | goto int_case; |
2355 | case TARGET_SO_DONTROUTE: |
2356 | optname = SO_DONTROUTE; |
2357 | goto int_case; |
2358 | case TARGET_SO_BROADCAST: |
2359 | optname = SO_BROADCAST; |
2360 | goto int_case; |
2361 | case TARGET_SO_SNDBUF: |
2362 | optname = SO_SNDBUF; |
2363 | goto int_case; |
2364 | case TARGET_SO_RCVBUF: |
2365 | optname = SO_RCVBUF; |
2366 | goto int_case; |
2367 | case TARGET_SO_KEEPALIVE: |
2368 | optname = SO_KEEPALIVE; |
2369 | goto int_case; |
2370 | case TARGET_SO_OOBINLINE: |
2371 | optname = SO_OOBINLINE; |
2372 | goto int_case; |
2373 | case TARGET_SO_NO_CHECK: |
2374 | optname = SO_NO_CHECK; |
2375 | goto int_case; |
2376 | case TARGET_SO_PRIORITY: |
2377 | optname = SO_PRIORITY; |
2378 | goto int_case; |
2379 | #ifdef SO_BSDCOMPAT |
2380 | case TARGET_SO_BSDCOMPAT: |
2381 | optname = SO_BSDCOMPAT; |
2382 | goto int_case; |
2383 | #endif |
2384 | case TARGET_SO_PASSCRED: |
2385 | optname = SO_PASSCRED; |
2386 | goto int_case; |
2387 | case TARGET_SO_TIMESTAMP: |
2388 | optname = SO_TIMESTAMP; |
2389 | goto int_case; |
2390 | case TARGET_SO_RCVLOWAT: |
2391 | optname = SO_RCVLOWAT; |
2392 | goto int_case; |
2393 | case TARGET_SO_ACCEPTCONN: |
2394 | optname = SO_ACCEPTCONN; |
2395 | goto int_case; |
2396 | default: |
2397 | goto int_case; |
2398 | } |
2399 | break; |
2400 | case SOL_TCP: |
2401 | /* TCP options all take an 'int' value. */ |
2402 | int_case: |
2403 | if (get_user_u32(len, optlen)) |
2404 | return -TARGET_EFAULT; |
2405 | if (len < 0) |
2406 | return -TARGET_EINVAL; |
2407 | lv = sizeof(lv); |
2408 | ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
2409 | if (ret < 0) |
2410 | return ret; |
2411 | if (optname == SO_TYPE) { |
2412 | val = host_to_target_sock_type(val); |
2413 | } |
2414 | if (len > lv) |
2415 | len = lv; |
2416 | if (len == 4) { |
2417 | if (put_user_u32(val, optval_addr)) |
2418 | return -TARGET_EFAULT; |
2419 | } else { |
2420 | if (put_user_u8(val, optval_addr)) |
2421 | return -TARGET_EFAULT; |
2422 | } |
2423 | if (put_user_u32(len, optlen)) |
2424 | return -TARGET_EFAULT; |
2425 | break; |
2426 | case SOL_IP: |
2427 | switch(optname) { |
2428 | case IP_TOS: |
2429 | case IP_TTL: |
2430 | case IP_HDRINCL: |
2431 | case IP_ROUTER_ALERT: |
2432 | case IP_RECVOPTS: |
2433 | case IP_RETOPTS: |
2434 | case IP_PKTINFO: |
2435 | case IP_MTU_DISCOVER: |
2436 | case IP_RECVERR: |
2437 | case IP_RECVTOS: |
2438 | #ifdef IP_FREEBIND |
2439 | case IP_FREEBIND: |
2440 | #endif |
2441 | case IP_MULTICAST_TTL: |
2442 | case IP_MULTICAST_LOOP: |
2443 | if (get_user_u32(len, optlen)) |
2444 | return -TARGET_EFAULT; |
2445 | if (len < 0) |
2446 | return -TARGET_EINVAL; |
2447 | lv = sizeof(lv); |
2448 | ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
2449 | if (ret < 0) |
2450 | return ret; |
2451 | if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { |
2452 | len = 1; |
2453 | if (put_user_u32(len, optlen) |
2454 | || put_user_u8(val, optval_addr)) |
2455 | return -TARGET_EFAULT; |
2456 | } else { |
2457 | if (len > sizeof(int)) |
2458 | len = sizeof(int); |
2459 | if (put_user_u32(len, optlen) |
2460 | || put_user_u32(val, optval_addr)) |
2461 | return -TARGET_EFAULT; |
2462 | } |
2463 | break; |
2464 | default: |
2465 | ret = -TARGET_ENOPROTOOPT; |
2466 | break; |
2467 | } |
2468 | break; |
2469 | case SOL_IPV6: |
2470 | switch (optname) { |
2471 | case IPV6_MTU_DISCOVER: |
2472 | case IPV6_MTU: |
2473 | case IPV6_V6ONLY: |
2474 | case IPV6_RECVPKTINFO: |
2475 | case IPV6_UNICAST_HOPS: |
2476 | case IPV6_MULTICAST_HOPS: |
2477 | case IPV6_MULTICAST_LOOP: |
2478 | case IPV6_RECVERR: |
2479 | case IPV6_RECVHOPLIMIT: |
2480 | case IPV6_2292HOPLIMIT: |
2481 | case IPV6_CHECKSUM: |
2482 | case IPV6_ADDRFORM: |
2483 | case IPV6_2292PKTINFO: |
2484 | case IPV6_RECVTCLASS: |
2485 | case IPV6_RECVRTHDR: |
2486 | case IPV6_2292RTHDR: |
2487 | case IPV6_RECVHOPOPTS: |
2488 | case IPV6_2292HOPOPTS: |
2489 | case IPV6_RECVDSTOPTS: |
2490 | case IPV6_2292DSTOPTS: |
2491 | case IPV6_TCLASS: |
2492 | #ifdef IPV6_RECVPATHMTU |
2493 | case IPV6_RECVPATHMTU: |
2494 | #endif |
2495 | #ifdef IPV6_TRANSPARENT |
2496 | case IPV6_TRANSPARENT: |
2497 | #endif |
2498 | #ifdef IPV6_FREEBIND |
2499 | case IPV6_FREEBIND: |
2500 | #endif |
2501 | #ifdef IPV6_RECVORIGDSTADDR |
2502 | case IPV6_RECVORIGDSTADDR: |
2503 | #endif |
2504 | if (get_user_u32(len, optlen)) |
2505 | return -TARGET_EFAULT; |
2506 | if (len < 0) |
2507 | return -TARGET_EINVAL; |
2508 | lv = sizeof(lv); |
2509 | ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
2510 | if (ret < 0) |
2511 | return ret; |
2512 | if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { |
2513 | len = 1; |
2514 | if (put_user_u32(len, optlen) |
2515 | || put_user_u8(val, optval_addr)) |
2516 | return -TARGET_EFAULT; |
2517 | } else { |
2518 | if (len > sizeof(int)) |
2519 | len = sizeof(int); |
2520 | if (put_user_u32(len, optlen) |
2521 | || put_user_u32(val, optval_addr)) |
2522 | return -TARGET_EFAULT; |
2523 | } |
2524 | break; |
2525 | default: |
2526 | ret = -TARGET_ENOPROTOOPT; |
2527 | break; |
2528 | } |
2529 | break; |
2530 | default: |
2531 | unimplemented: |
2532 | gemu_log("getsockopt level=%d optname=%d not yet supported\n" , |
2533 | level, optname); |
2534 | ret = -TARGET_EOPNOTSUPP; |
2535 | break; |
2536 | } |
2537 | return ret; |
2538 | } |
2539 | |
2540 | /* Convert target low/high pair representing file offset into the host |
2541 | * low/high pair. This function doesn't handle offsets bigger than 64 bits |
2542 | * as the kernel doesn't handle them either. |
2543 | */ |
2544 | static void target_to_host_low_high(abi_ulong tlow, |
2545 | abi_ulong thigh, |
2546 | unsigned long *hlow, |
2547 | unsigned long *hhigh) |
2548 | { |
2549 | uint64_t off = tlow | |
2550 | ((unsigned long long)thigh << TARGET_LONG_BITS / 2) << |
2551 | TARGET_LONG_BITS / 2; |
2552 | |
2553 | *hlow = off; |
2554 | *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2; |
2555 | } |
2556 | |
2557 | static struct iovec *lock_iovec(int type, abi_ulong target_addr, |
2558 | abi_ulong count, int copy) |
2559 | { |
2560 | struct target_iovec *target_vec; |
2561 | struct iovec *vec; |
2562 | abi_ulong total_len, max_len; |
2563 | int i; |
2564 | int err = 0; |
2565 | bool bad_address = false; |
2566 | |
2567 | if (count == 0) { |
2568 | errno = 0; |
2569 | return NULL; |
2570 | } |
2571 | if (count > IOV_MAX) { |
2572 | errno = EINVAL; |
2573 | return NULL; |
2574 | } |
2575 | |
2576 | vec = g_try_new0(struct iovec, count); |
2577 | if (vec == NULL) { |
2578 | errno = ENOMEM; |
2579 | return NULL; |
2580 | } |
2581 | |
2582 | target_vec = lock_user(VERIFY_READ, target_addr, |
2583 | count * sizeof(struct target_iovec), 1); |
2584 | if (target_vec == NULL) { |
2585 | err = EFAULT; |
2586 | goto fail2; |
2587 | } |
2588 | |
2589 | /* ??? If host page size > target page size, this will result in a |
2590 | value larger than what we can actually support. */ |
2591 | max_len = 0x7fffffff & TARGET_PAGE_MASK; |
2592 | total_len = 0; |
2593 | |
2594 | for (i = 0; i < count; i++) { |
2595 | abi_ulong base = tswapal(target_vec[i].iov_base); |
2596 | abi_long len = tswapal(target_vec[i].iov_len); |
2597 | |
2598 | if (len < 0) { |
2599 | err = EINVAL; |
2600 | goto fail; |
2601 | } else if (len == 0) { |
2602 | /* Zero length pointer is ignored. */ |
2603 | vec[i].iov_base = 0; |
2604 | } else { |
2605 | vec[i].iov_base = lock_user(type, base, len, copy); |
2606 | /* If the first buffer pointer is bad, this is a fault. But |
2607 | * subsequent bad buffers will result in a partial write; this |
2608 | * is realized by filling the vector with null pointers and |
2609 | * zero lengths. */ |
2610 | if (!vec[i].iov_base) { |
2611 | if (i == 0) { |
2612 | err = EFAULT; |
2613 | goto fail; |
2614 | } else { |
2615 | bad_address = true; |
2616 | } |
2617 | } |
2618 | if (bad_address) { |
2619 | len = 0; |
2620 | } |
2621 | if (len > max_len - total_len) { |
2622 | len = max_len - total_len; |
2623 | } |
2624 | } |
2625 | vec[i].iov_len = len; |
2626 | total_len += len; |
2627 | } |
2628 | |
2629 | unlock_user(target_vec, target_addr, 0); |
2630 | return vec; |
2631 | |
2632 | fail: |
2633 | while (--i >= 0) { |
2634 | if (tswapal(target_vec[i].iov_len) > 0) { |
2635 | unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0); |
2636 | } |
2637 | } |
2638 | unlock_user(target_vec, target_addr, 0); |
2639 | fail2: |
2640 | g_free(vec); |
2641 | errno = err; |
2642 | return NULL; |
2643 | } |
2644 | |
2645 | static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, |
2646 | abi_ulong count, int copy) |
2647 | { |
2648 | struct target_iovec *target_vec; |
2649 | int i; |
2650 | |
2651 | target_vec = lock_user(VERIFY_READ, target_addr, |
2652 | count * sizeof(struct target_iovec), 1); |
2653 | if (target_vec) { |
2654 | for (i = 0; i < count; i++) { |
2655 | abi_ulong base = tswapal(target_vec[i].iov_base); |
2656 | abi_long len = tswapal(target_vec[i].iov_len); |
2657 | if (len < 0) { |
2658 | break; |
2659 | } |
2660 | unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); |
2661 | } |
2662 | unlock_user(target_vec, target_addr, 0); |
2663 | } |
2664 | |
2665 | g_free(vec); |
2666 | } |
2667 | |
2668 | static inline int target_to_host_sock_type(int *type) |
2669 | { |
2670 | int host_type = 0; |
2671 | int target_type = *type; |
2672 | |
2673 | switch (target_type & TARGET_SOCK_TYPE_MASK) { |
2674 | case TARGET_SOCK_DGRAM: |
2675 | host_type = SOCK_DGRAM; |
2676 | break; |
2677 | case TARGET_SOCK_STREAM: |
2678 | host_type = SOCK_STREAM; |
2679 | break; |
2680 | default: |
2681 | host_type = target_type & TARGET_SOCK_TYPE_MASK; |
2682 | break; |
2683 | } |
2684 | if (target_type & TARGET_SOCK_CLOEXEC) { |
2685 | #if defined(SOCK_CLOEXEC) |
2686 | host_type |= SOCK_CLOEXEC; |
2687 | #else |
2688 | return -TARGET_EINVAL; |
2689 | #endif |
2690 | } |
2691 | if (target_type & TARGET_SOCK_NONBLOCK) { |
2692 | #if defined(SOCK_NONBLOCK) |
2693 | host_type |= SOCK_NONBLOCK; |
2694 | #elif !defined(O_NONBLOCK) |
2695 | return -TARGET_EINVAL; |
2696 | #endif |
2697 | } |
2698 | *type = host_type; |
2699 | return 0; |
2700 | } |
2701 | |
2702 | /* Try to emulate socket type flags after socket creation. */ |
2703 | static int sock_flags_fixup(int fd, int target_type) |
2704 | { |
2705 | #if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK) |
2706 | if (target_type & TARGET_SOCK_NONBLOCK) { |
2707 | int flags = fcntl(fd, F_GETFL); |
2708 | if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) { |
2709 | close(fd); |
2710 | return -TARGET_EINVAL; |
2711 | } |
2712 | } |
2713 | #endif |
2714 | return fd; |
2715 | } |
2716 | |
2717 | /* do_socket() Must return target values and target errnos. */ |
2718 | static abi_long do_socket(int domain, int type, int protocol) |
2719 | { |
2720 | int target_type = type; |
2721 | int ret; |
2722 | |
2723 | ret = target_to_host_sock_type(&type); |
2724 | if (ret) { |
2725 | return ret; |
2726 | } |
2727 | |
2728 | if (domain == PF_NETLINK && !( |
2729 | #ifdef CONFIG_RTNETLINK |
2730 | protocol == NETLINK_ROUTE || |
2731 | #endif |
2732 | protocol == NETLINK_KOBJECT_UEVENT || |
2733 | protocol == NETLINK_AUDIT)) { |
2734 | return -EPFNOSUPPORT; |
2735 | } |
2736 | |
2737 | if (domain == AF_PACKET || |
2738 | (domain == AF_INET && type == SOCK_PACKET)) { |
2739 | protocol = tswap16(protocol); |
2740 | } |
2741 | |
2742 | ret = get_errno(socket(domain, type, protocol)); |
2743 | if (ret >= 0) { |
2744 | ret = sock_flags_fixup(ret, target_type); |
2745 | if (type == SOCK_PACKET) { |
2746 | /* Manage an obsolete case : |
2747 | * if socket type is SOCK_PACKET, bind by name |
2748 | */ |
2749 | fd_trans_register(ret, &target_packet_trans); |
2750 | } else if (domain == PF_NETLINK) { |
2751 | switch (protocol) { |
2752 | #ifdef CONFIG_RTNETLINK |
2753 | case NETLINK_ROUTE: |
2754 | fd_trans_register(ret, &target_netlink_route_trans); |
2755 | break; |
2756 | #endif |
2757 | case NETLINK_KOBJECT_UEVENT: |
2758 | /* nothing to do: messages are strings */ |
2759 | break; |
2760 | case NETLINK_AUDIT: |
2761 | fd_trans_register(ret, &target_netlink_audit_trans); |
2762 | break; |
2763 | default: |
2764 | g_assert_not_reached(); |
2765 | } |
2766 | } |
2767 | } |
2768 | return ret; |
2769 | } |
2770 | |
2771 | /* do_bind() Must return target values and target errnos. */ |
2772 | static abi_long do_bind(int sockfd, abi_ulong target_addr, |
2773 | socklen_t addrlen) |
2774 | { |
2775 | void *addr; |
2776 | abi_long ret; |
2777 | |
2778 | if ((int)addrlen < 0) { |
2779 | return -TARGET_EINVAL; |
2780 | } |
2781 | |
2782 | addr = alloca(addrlen+1); |
2783 | |
2784 | ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen); |
2785 | if (ret) |
2786 | return ret; |
2787 | |
2788 | return get_errno(bind(sockfd, addr, addrlen)); |
2789 | } |
2790 | |
2791 | /* do_connect() Must return target values and target errnos. */ |
2792 | static abi_long do_connect(int sockfd, abi_ulong target_addr, |
2793 | socklen_t addrlen) |
2794 | { |
2795 | void *addr; |
2796 | abi_long ret; |
2797 | |
2798 | if ((int)addrlen < 0) { |
2799 | return -TARGET_EINVAL; |
2800 | } |
2801 | |
2802 | addr = alloca(addrlen+1); |
2803 | |
2804 | ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen); |
2805 | if (ret) |
2806 | return ret; |
2807 | |
2808 | return get_errno(safe_connect(sockfd, addr, addrlen)); |
2809 | } |
2810 | |
2811 | /* do_sendrecvmsg_locked() Must return target values and target errnos. */ |
2812 | static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp, |
2813 | int flags, int send) |
2814 | { |
2815 | abi_long ret, len; |
2816 | struct msghdr msg; |
2817 | abi_ulong count; |
2818 | struct iovec *vec; |
2819 | abi_ulong target_vec; |
2820 | |
2821 | if (msgp->msg_name) { |
2822 | msg.msg_namelen = tswap32(msgp->msg_namelen); |
2823 | msg.msg_name = alloca(msg.msg_namelen+1); |
2824 | ret = target_to_host_sockaddr(fd, msg.msg_name, |
2825 | tswapal(msgp->msg_name), |
2826 | msg.msg_namelen); |
2827 | if (ret == -TARGET_EFAULT) { |
2828 | /* For connected sockets msg_name and msg_namelen must |
2829 | * be ignored, so returning EFAULT immediately is wrong. |
2830 | * Instead, pass a bad msg_name to the host kernel, and |
2831 | * let it decide whether to return EFAULT or not. |
2832 | */ |
2833 | msg.msg_name = (void *)-1; |
2834 | } else if (ret) { |
2835 | goto out2; |
2836 | } |
2837 | } else { |
2838 | msg.msg_name = NULL; |
2839 | msg.msg_namelen = 0; |
2840 | } |
2841 | msg.msg_controllen = 2 * tswapal(msgp->msg_controllen); |
2842 | msg.msg_control = alloca(msg.msg_controllen); |
2843 | memset(msg.msg_control, 0, msg.msg_controllen); |
2844 | |
2845 | msg.msg_flags = tswap32(msgp->msg_flags); |
2846 | |
2847 | count = tswapal(msgp->msg_iovlen); |
2848 | target_vec = tswapal(msgp->msg_iov); |
2849 | |
2850 | if (count > IOV_MAX) { |
2851 | /* sendrcvmsg returns a different errno for this condition than |
2852 | * readv/writev, so we must catch it here before lock_iovec() does. |
2853 | */ |
2854 | ret = -TARGET_EMSGSIZE; |
2855 | goto out2; |
2856 | } |
2857 | |
2858 | vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, |
2859 | target_vec, count, send); |
2860 | if (vec == NULL) { |
2861 | ret = -host_to_target_errno(errno); |
2862 | goto out2; |
2863 | } |
2864 | msg.msg_iovlen = count; |
2865 | msg.msg_iov = vec; |
2866 | |
2867 | if (send) { |
2868 | if (fd_trans_target_to_host_data(fd)) { |
2869 | void *host_msg; |
2870 | |
2871 | host_msg = g_malloc(msg.msg_iov->iov_len); |
2872 | memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len); |
2873 | ret = fd_trans_target_to_host_data(fd)(host_msg, |
2874 | msg.msg_iov->iov_len); |
2875 | if (ret >= 0) { |
2876 | msg.msg_iov->iov_base = host_msg; |
2877 | ret = get_errno(safe_sendmsg(fd, &msg, flags)); |
2878 | } |
2879 | g_free(host_msg); |
2880 | } else { |
2881 | ret = target_to_host_cmsg(&msg, msgp); |
2882 | if (ret == 0) { |
2883 | ret = get_errno(safe_sendmsg(fd, &msg, flags)); |
2884 | } |
2885 | } |
2886 | } else { |
2887 | ret = get_errno(safe_recvmsg(fd, &msg, flags)); |
2888 | if (!is_error(ret)) { |
2889 | len = ret; |
2890 | if (fd_trans_host_to_target_data(fd)) { |
2891 | ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base, |
2892 | MIN(msg.msg_iov->iov_len, len)); |
2893 | } else { |
2894 | ret = host_to_target_cmsg(msgp, &msg); |
2895 | } |
2896 | if (!is_error(ret)) { |
2897 | msgp->msg_namelen = tswap32(msg.msg_namelen); |
2898 | msgp->msg_flags = tswap32(msg.msg_flags); |
2899 | if (msg.msg_name != NULL && msg.msg_name != (void *)-1) { |
2900 | ret = host_to_target_sockaddr(tswapal(msgp->msg_name), |
2901 | msg.msg_name, msg.msg_namelen); |
2902 | if (ret) { |
2903 | goto out; |
2904 | } |
2905 | } |
2906 | |
2907 | ret = len; |
2908 | } |
2909 | } |
2910 | } |
2911 | |
2912 | out: |
2913 | unlock_iovec(vec, target_vec, count, !send); |
2914 | out2: |
2915 | return ret; |
2916 | } |
2917 | |
2918 | static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, |
2919 | int flags, int send) |
2920 | { |
2921 | abi_long ret; |
2922 | struct target_msghdr *msgp; |
2923 | |
2924 | if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, |
2925 | msgp, |
2926 | target_msg, |
2927 | send ? 1 : 0)) { |
2928 | return -TARGET_EFAULT; |
2929 | } |
2930 | ret = do_sendrecvmsg_locked(fd, msgp, flags, send); |
2931 | unlock_user_struct(msgp, target_msg, send ? 0 : 1); |
2932 | return ret; |
2933 | } |
2934 | |
2935 | /* We don't rely on the C library to have sendmmsg/recvmmsg support, |
2936 | * so it might not have this *mmsg-specific flag either. |
2937 | */ |
2938 | #ifndef MSG_WAITFORONE |
2939 | #define MSG_WAITFORONE 0x10000 |
2940 | #endif |
2941 | |
2942 | static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec, |
2943 | unsigned int vlen, unsigned int flags, |
2944 | int send) |
2945 | { |
2946 | struct target_mmsghdr *mmsgp; |
2947 | abi_long ret = 0; |
2948 | int i; |
2949 | |
2950 | if (vlen > UIO_MAXIOV) { |
2951 | vlen = UIO_MAXIOV; |
2952 | } |
2953 | |
2954 | mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1); |
2955 | if (!mmsgp) { |
2956 | return -TARGET_EFAULT; |
2957 | } |
2958 | |
2959 | for (i = 0; i < vlen; i++) { |
2960 | ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send); |
2961 | if (is_error(ret)) { |
2962 | break; |
2963 | } |
2964 | mmsgp[i].msg_len = tswap32(ret); |
2965 | /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ |
2966 | if (flags & MSG_WAITFORONE) { |
2967 | flags |= MSG_DONTWAIT; |
2968 | } |
2969 | } |
2970 | |
2971 | unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i); |
2972 | |
2973 | /* Return number of datagrams sent if we sent any at all; |
2974 | * otherwise return the error. |
2975 | */ |
2976 | if (i) { |
2977 | return i; |
2978 | } |
2979 | return ret; |
2980 | } |
2981 | |
2982 | /* do_accept4() Must return target values and target errnos. */ |
2983 | static abi_long do_accept4(int fd, abi_ulong target_addr, |
2984 | abi_ulong target_addrlen_addr, int flags) |
2985 | { |
2986 | socklen_t addrlen, ret_addrlen; |
2987 | void *addr; |
2988 | abi_long ret; |
2989 | int host_flags; |
2990 | |
2991 | host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl); |
2992 | |
2993 | if (target_addr == 0) { |
2994 | return get_errno(safe_accept4(fd, NULL, NULL, host_flags)); |
2995 | } |
2996 | |
2997 | /* linux returns EINVAL if addrlen pointer is invalid */ |
2998 | if (get_user_u32(addrlen, target_addrlen_addr)) |
2999 | return -TARGET_EINVAL; |
3000 | |
3001 | if ((int)addrlen < 0) { |
3002 | return -TARGET_EINVAL; |
3003 | } |
3004 | |
3005 | if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
3006 | return -TARGET_EINVAL; |
3007 | |
3008 | addr = alloca(addrlen); |
3009 | |
3010 | ret_addrlen = addrlen; |
3011 | ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags)); |
3012 | if (!is_error(ret)) { |
3013 | host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
3014 | if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
3015 | ret = -TARGET_EFAULT; |
3016 | } |
3017 | } |
3018 | return ret; |
3019 | } |
3020 | |
3021 | /* do_getpeername() Must return target values and target errnos. */ |
3022 | static abi_long do_getpeername(int fd, abi_ulong target_addr, |
3023 | abi_ulong target_addrlen_addr) |
3024 | { |
3025 | socklen_t addrlen, ret_addrlen; |
3026 | void *addr; |
3027 | abi_long ret; |
3028 | |
3029 | if (get_user_u32(addrlen, target_addrlen_addr)) |
3030 | return -TARGET_EFAULT; |
3031 | |
3032 | if ((int)addrlen < 0) { |
3033 | return -TARGET_EINVAL; |
3034 | } |
3035 | |
3036 | if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
3037 | return -TARGET_EFAULT; |
3038 | |
3039 | addr = alloca(addrlen); |
3040 | |
3041 | ret_addrlen = addrlen; |
3042 | ret = get_errno(getpeername(fd, addr, &ret_addrlen)); |
3043 | if (!is_error(ret)) { |
3044 | host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
3045 | if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
3046 | ret = -TARGET_EFAULT; |
3047 | } |
3048 | } |
3049 | return ret; |
3050 | } |
3051 | |
3052 | /* do_getsockname() Must return target values and target errnos. */ |
3053 | static abi_long do_getsockname(int fd, abi_ulong target_addr, |
3054 | abi_ulong target_addrlen_addr) |
3055 | { |
3056 | socklen_t addrlen, ret_addrlen; |
3057 | void *addr; |
3058 | abi_long ret; |
3059 | |
3060 | if (get_user_u32(addrlen, target_addrlen_addr)) |
3061 | return -TARGET_EFAULT; |
3062 | |
3063 | if ((int)addrlen < 0) { |
3064 | return -TARGET_EINVAL; |
3065 | } |
3066 | |
3067 | if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
3068 | return -TARGET_EFAULT; |
3069 | |
3070 | addr = alloca(addrlen); |
3071 | |
3072 | ret_addrlen = addrlen; |
3073 | ret = get_errno(getsockname(fd, addr, &ret_addrlen)); |
3074 | if (!is_error(ret)) { |
3075 | host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
3076 | if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
3077 | ret = -TARGET_EFAULT; |
3078 | } |
3079 | } |
3080 | return ret; |
3081 | } |
3082 | |
3083 | /* do_socketpair() Must return target values and target errnos. */ |
3084 | static abi_long do_socketpair(int domain, int type, int protocol, |
3085 | abi_ulong target_tab_addr) |
3086 | { |
3087 | int tab[2]; |
3088 | abi_long ret; |
3089 | |
3090 | target_to_host_sock_type(&type); |
3091 | |
3092 | ret = get_errno(socketpair(domain, type, protocol, tab)); |
3093 | if (!is_error(ret)) { |
3094 | if (put_user_s32(tab[0], target_tab_addr) |
3095 | || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) |
3096 | ret = -TARGET_EFAULT; |
3097 | } |
3098 | return ret; |
3099 | } |
3100 | |
3101 | /* do_sendto() Must return target values and target errnos. */ |
3102 | static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, |
3103 | abi_ulong target_addr, socklen_t addrlen) |
3104 | { |
3105 | void *addr; |
3106 | void *host_msg; |
3107 | void *copy_msg = NULL; |
3108 | abi_long ret; |
3109 | |
3110 | if ((int)addrlen < 0) { |
3111 | return -TARGET_EINVAL; |
3112 | } |
3113 | |
3114 | host_msg = lock_user(VERIFY_READ, msg, len, 1); |
3115 | if (!host_msg) |
3116 | return -TARGET_EFAULT; |
3117 | if (fd_trans_target_to_host_data(fd)) { |
3118 | copy_msg = host_msg; |
3119 | host_msg = g_malloc(len); |
3120 | memcpy(host_msg, copy_msg, len); |
3121 | ret = fd_trans_target_to_host_data(fd)(host_msg, len); |
3122 | if (ret < 0) { |
3123 | goto fail; |
3124 | } |
3125 | } |
3126 | if (target_addr) { |
3127 | addr = alloca(addrlen+1); |
3128 | ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen); |
3129 | if (ret) { |
3130 | goto fail; |
3131 | } |
3132 | ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen)); |
3133 | } else { |
3134 | ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0)); |
3135 | } |
3136 | fail: |
3137 | if (copy_msg) { |
3138 | g_free(host_msg); |
3139 | host_msg = copy_msg; |
3140 | } |
3141 | unlock_user(host_msg, msg, 0); |
3142 | return ret; |
3143 | } |
3144 | |
3145 | /* do_recvfrom() Must return target values and target errnos. */ |
3146 | static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, |
3147 | abi_ulong target_addr, |
3148 | abi_ulong target_addrlen) |
3149 | { |
3150 | socklen_t addrlen, ret_addrlen; |
3151 | void *addr; |
3152 | void *host_msg; |
3153 | abi_long ret; |
3154 | |
3155 | host_msg = lock_user(VERIFY_WRITE, msg, len, 0); |
3156 | if (!host_msg) |
3157 | return -TARGET_EFAULT; |
3158 | if (target_addr) { |
3159 | if (get_user_u32(addrlen, target_addrlen)) { |
3160 | ret = -TARGET_EFAULT; |
3161 | goto fail; |
3162 | } |
3163 | if ((int)addrlen < 0) { |
3164 | ret = -TARGET_EINVAL; |
3165 | goto fail; |
3166 | } |
3167 | addr = alloca(addrlen); |
3168 | ret_addrlen = addrlen; |
3169 | ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, |
3170 | addr, &ret_addrlen)); |
3171 | } else { |
3172 | addr = NULL; /* To keep compiler quiet. */ |
3173 | addrlen = 0; /* To keep compiler quiet. */ |
3174 | ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0)); |
3175 | } |
3176 | if (!is_error(ret)) { |
3177 | if (fd_trans_host_to_target_data(fd)) { |
3178 | abi_long trans; |
3179 | trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len)); |
3180 | if (is_error(trans)) { |
3181 | ret = trans; |
3182 | goto fail; |
3183 | } |
3184 | } |
3185 | if (target_addr) { |
3186 | host_to_target_sockaddr(target_addr, addr, |
3187 | MIN(addrlen, ret_addrlen)); |
3188 | if (put_user_u32(ret_addrlen, target_addrlen)) { |
3189 | ret = -TARGET_EFAULT; |
3190 | goto fail; |
3191 | } |
3192 | } |
3193 | unlock_user(host_msg, msg, len); |
3194 | } else { |
3195 | fail: |
3196 | unlock_user(host_msg, msg, 0); |
3197 | } |
3198 | return ret; |
3199 | } |
3200 | |
3201 | #ifdef TARGET_NR_socketcall |
3202 | /* do_socketcall() must return target values and target errnos. */ |
3203 | static abi_long do_socketcall(int num, abi_ulong vptr) |
3204 | { |
3205 | static const unsigned nargs[] = { /* number of arguments per operation */ |
3206 | [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */ |
3207 | [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */ |
3208 | [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */ |
3209 | [TARGET_SYS_LISTEN] = 2, /* fd, backlog */ |
3210 | [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */ |
3211 | [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */ |
3212 | [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */ |
3213 | [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */ |
3214 | [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */ |
3215 | [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */ |
3216 | [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */ |
3217 | [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */ |
3218 | [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */ |
3219 | [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */ |
3220 | [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */ |
3221 | [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */ |
3222 | [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */ |
3223 | [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */ |
3224 | [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */ |
3225 | [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */ |
3226 | }; |
3227 | abi_long a[6]; /* max 6 args */ |
3228 | unsigned i; |
3229 | |
3230 | /* check the range of the first argument num */ |
3231 | /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */ |
3232 | if (num < 1 || num > TARGET_SYS_SENDMMSG) { |
3233 | return -TARGET_EINVAL; |
3234 | } |
3235 | /* ensure we have space for args */ |
3236 | if (nargs[num] > ARRAY_SIZE(a)) { |
3237 | return -TARGET_EINVAL; |
3238 | } |
3239 | /* collect the arguments in a[] according to nargs[] */ |
3240 | for (i = 0; i < nargs[num]; ++i) { |
3241 | if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) { |
3242 | return -TARGET_EFAULT; |
3243 | } |
3244 | } |
3245 | /* now when we have the args, invoke the appropriate underlying function */ |
3246 | switch (num) { |
3247 | case TARGET_SYS_SOCKET: /* domain, type, protocol */ |
3248 | return do_socket(a[0], a[1], a[2]); |
3249 | case TARGET_SYS_BIND: /* sockfd, addr, addrlen */ |
3250 | return do_bind(a[0], a[1], a[2]); |
3251 | case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */ |
3252 | return do_connect(a[0], a[1], a[2]); |
3253 | case TARGET_SYS_LISTEN: /* sockfd, backlog */ |
3254 | return get_errno(listen(a[0], a[1])); |
3255 | case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */ |
3256 | return do_accept4(a[0], a[1], a[2], 0); |
3257 | case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */ |
3258 | return do_getsockname(a[0], a[1], a[2]); |
3259 | case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */ |
3260 | return do_getpeername(a[0], a[1], a[2]); |
3261 | case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */ |
3262 | return do_socketpair(a[0], a[1], a[2], a[3]); |
3263 | case TARGET_SYS_SEND: /* sockfd, msg, len, flags */ |
3264 | return do_sendto(a[0], a[1], a[2], a[3], 0, 0); |
3265 | case TARGET_SYS_RECV: /* sockfd, msg, len, flags */ |
3266 | return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0); |
3267 | case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */ |
3268 | return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]); |
3269 | case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */ |
3270 | return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]); |
3271 | case TARGET_SYS_SHUTDOWN: /* sockfd, how */ |
3272 | return get_errno(shutdown(a[0], a[1])); |
3273 | case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */ |
3274 | return do_setsockopt(a[0], a[1], a[2], a[3], a[4]); |
3275 | case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */ |
3276 | return do_getsockopt(a[0], a[1], a[2], a[3], a[4]); |
3277 | case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */ |
3278 | return do_sendrecvmsg(a[0], a[1], a[2], 1); |
3279 | case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */ |
3280 | return do_sendrecvmsg(a[0], a[1], a[2], 0); |
3281 | case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */ |
3282 | return do_accept4(a[0], a[1], a[2], a[3]); |
3283 | case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */ |
3284 | return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0); |
3285 | case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */ |
3286 | return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1); |
3287 | default: |
3288 | gemu_log("Unsupported socketcall: %d\n" , num); |
3289 | return -TARGET_EINVAL; |
3290 | } |
3291 | } |
3292 | #endif |
3293 | |
3294 | #define N_SHM_REGIONS 32 |
3295 | |
3296 | static struct shm_region { |
3297 | abi_ulong start; |
3298 | abi_ulong size; |
3299 | bool in_use; |
3300 | } shm_regions[N_SHM_REGIONS]; |
3301 | |
3302 | #ifndef TARGET_SEMID64_DS |
3303 | /* asm-generic version of this struct */ |
3304 | struct target_semid64_ds |
3305 | { |
3306 | struct target_ipc_perm sem_perm; |
3307 | abi_ulong sem_otime; |
3308 | #if TARGET_ABI_BITS == 32 |
3309 | abi_ulong __unused1; |
3310 | #endif |
3311 | abi_ulong sem_ctime; |
3312 | #if TARGET_ABI_BITS == 32 |
3313 | abi_ulong __unused2; |
3314 | #endif |
3315 | abi_ulong sem_nsems; |
3316 | abi_ulong __unused3; |
3317 | abi_ulong __unused4; |
3318 | }; |
3319 | #endif |
3320 | |
3321 | static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, |
3322 | abi_ulong target_addr) |
3323 | { |
3324 | struct target_ipc_perm *target_ip; |
3325 | struct target_semid64_ds *target_sd; |
3326 | |
3327 | if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
3328 | return -TARGET_EFAULT; |
3329 | target_ip = &(target_sd->sem_perm); |
3330 | host_ip->__key = tswap32(target_ip->__key); |
3331 | host_ip->uid = tswap32(target_ip->uid); |
3332 | host_ip->gid = tswap32(target_ip->gid); |
3333 | host_ip->cuid = tswap32(target_ip->cuid); |
3334 | host_ip->cgid = tswap32(target_ip->cgid); |
3335 | #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC) |
3336 | host_ip->mode = tswap32(target_ip->mode); |
3337 | #else |
3338 | host_ip->mode = tswap16(target_ip->mode); |
3339 | #endif |
3340 | #if defined(TARGET_PPC) |
3341 | host_ip->__seq = tswap32(target_ip->__seq); |
3342 | #else |
3343 | host_ip->__seq = tswap16(target_ip->__seq); |
3344 | #endif |
3345 | unlock_user_struct(target_sd, target_addr, 0); |
3346 | return 0; |
3347 | } |
3348 | |
3349 | static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, |
3350 | struct ipc_perm *host_ip) |
3351 | { |
3352 | struct target_ipc_perm *target_ip; |
3353 | struct target_semid64_ds *target_sd; |
3354 | |
3355 | if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
3356 | return -TARGET_EFAULT; |
3357 | target_ip = &(target_sd->sem_perm); |
3358 | target_ip->__key = tswap32(host_ip->__key); |
3359 | target_ip->uid = tswap32(host_ip->uid); |
3360 | target_ip->gid = tswap32(host_ip->gid); |
3361 | target_ip->cuid = tswap32(host_ip->cuid); |
3362 | target_ip->cgid = tswap32(host_ip->cgid); |
3363 | #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC) |
3364 | target_ip->mode = tswap32(host_ip->mode); |
3365 | #else |
3366 | target_ip->mode = tswap16(host_ip->mode); |
3367 | #endif |
3368 | #if defined(TARGET_PPC) |
3369 | target_ip->__seq = tswap32(host_ip->__seq); |
3370 | #else |
3371 | target_ip->__seq = tswap16(host_ip->__seq); |
3372 | #endif |
3373 | unlock_user_struct(target_sd, target_addr, 1); |
3374 | return 0; |
3375 | } |
3376 | |
3377 | static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, |
3378 | abi_ulong target_addr) |
3379 | { |
3380 | struct target_semid64_ds *target_sd; |
3381 | |
3382 | if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
3383 | return -TARGET_EFAULT; |
3384 | if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr)) |
3385 | return -TARGET_EFAULT; |
3386 | host_sd->sem_nsems = tswapal(target_sd->sem_nsems); |
3387 | host_sd->sem_otime = tswapal(target_sd->sem_otime); |
3388 | host_sd->sem_ctime = tswapal(target_sd->sem_ctime); |
3389 | unlock_user_struct(target_sd, target_addr, 0); |
3390 | return 0; |
3391 | } |
3392 | |
3393 | static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, |
3394 | struct semid_ds *host_sd) |
3395 | { |
3396 | struct target_semid64_ds *target_sd; |
3397 | |
3398 | if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
3399 | return -TARGET_EFAULT; |
3400 | if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm))) |
3401 | return -TARGET_EFAULT; |
3402 | target_sd->sem_nsems = tswapal(host_sd->sem_nsems); |
3403 | target_sd->sem_otime = tswapal(host_sd->sem_otime); |
3404 | target_sd->sem_ctime = tswapal(host_sd->sem_ctime); |
3405 | unlock_user_struct(target_sd, target_addr, 1); |
3406 | return 0; |
3407 | } |
3408 | |
3409 | struct target_seminfo { |
3410 | int semmap; |
3411 | int semmni; |
3412 | int semmns; |
3413 | int semmnu; |
3414 | int semmsl; |
3415 | int semopm; |
3416 | int semume; |
3417 | int semusz; |
3418 | int semvmx; |
3419 | int semaem; |
3420 | }; |
3421 | |
3422 | static inline abi_long host_to_target_seminfo(abi_ulong target_addr, |
3423 | struct seminfo *host_seminfo) |
3424 | { |
3425 | struct target_seminfo *target_seminfo; |
3426 | if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0)) |
3427 | return -TARGET_EFAULT; |
3428 | __put_user(host_seminfo->semmap, &target_seminfo->semmap); |
3429 | __put_user(host_seminfo->semmni, &target_seminfo->semmni); |
3430 | __put_user(host_seminfo->semmns, &target_seminfo->semmns); |
3431 | __put_user(host_seminfo->semmnu, &target_seminfo->semmnu); |
3432 | __put_user(host_seminfo->semmsl, &target_seminfo->semmsl); |
3433 | __put_user(host_seminfo->semopm, &target_seminfo->semopm); |
3434 | __put_user(host_seminfo->semume, &target_seminfo->semume); |
3435 | __put_user(host_seminfo->semusz, &target_seminfo->semusz); |
3436 | __put_user(host_seminfo->semvmx, &target_seminfo->semvmx); |
3437 | __put_user(host_seminfo->semaem, &target_seminfo->semaem); |
3438 | unlock_user_struct(target_seminfo, target_addr, 1); |
3439 | return 0; |
3440 | } |
3441 | |
3442 | union semun { |
3443 | int val; |
3444 | struct semid_ds *buf; |
3445 | unsigned short *array; |
3446 | struct seminfo *__buf; |
3447 | }; |
3448 | |
3449 | union target_semun { |
3450 | int val; |
3451 | abi_ulong buf; |
3452 | abi_ulong array; |
3453 | abi_ulong __buf; |
3454 | }; |
3455 | |
3456 | static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array, |
3457 | abi_ulong target_addr) |
3458 | { |
3459 | int nsems; |
3460 | unsigned short *array; |
3461 | union semun semun; |
3462 | struct semid_ds semid_ds; |
3463 | int i, ret; |
3464 | |
3465 | semun.buf = &semid_ds; |
3466 | |
3467 | ret = semctl(semid, 0, IPC_STAT, semun); |
3468 | if (ret == -1) |
3469 | return get_errno(ret); |
3470 | |
3471 | nsems = semid_ds.sem_nsems; |
3472 | |
3473 | *host_array = g_try_new(unsigned short, nsems); |
3474 | if (!*host_array) { |
3475 | return -TARGET_ENOMEM; |
3476 | } |
3477 | array = lock_user(VERIFY_READ, target_addr, |
3478 | nsems*sizeof(unsigned short), 1); |
3479 | if (!array) { |
3480 | g_free(*host_array); |
3481 | return -TARGET_EFAULT; |
3482 | } |
3483 | |
3484 | for(i=0; i<nsems; i++) { |
3485 | __get_user((*host_array)[i], &array[i]); |
3486 | } |
3487 | unlock_user(array, target_addr, 0); |
3488 | |
3489 | return 0; |
3490 | } |
3491 | |
3492 | static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, |
3493 | unsigned short **host_array) |
3494 | { |
3495 | int nsems; |
3496 | unsigned short *array; |
3497 | union semun semun; |
3498 | struct semid_ds semid_ds; |
3499 | int i, ret; |
3500 | |
3501 | semun.buf = &semid_ds; |
3502 | |
3503 | ret = semctl(semid, 0, IPC_STAT, semun); |
3504 | if (ret == -1) |
3505 | return get_errno(ret); |
3506 | |
3507 | nsems = semid_ds.sem_nsems; |
3508 | |
3509 | array = lock_user(VERIFY_WRITE, target_addr, |
3510 | nsems*sizeof(unsigned short), 0); |
3511 | if (!array) |
3512 | return -TARGET_EFAULT; |
3513 | |
3514 | for(i=0; i<nsems; i++) { |
3515 | __put_user((*host_array)[i], &array[i]); |
3516 | } |
3517 | g_free(*host_array); |
3518 | unlock_user(array, target_addr, 1); |
3519 | |
3520 | return 0; |
3521 | } |
3522 | |
3523 | static inline abi_long do_semctl(int semid, int semnum, int cmd, |
3524 | abi_ulong target_arg) |
3525 | { |
3526 | union target_semun target_su = { .buf = target_arg }; |
3527 | union semun arg; |
3528 | struct semid_ds dsarg; |
3529 | unsigned short *array = NULL; |
3530 | struct seminfo seminfo; |
3531 | abi_long ret = -TARGET_EINVAL; |
3532 | abi_long err; |
3533 | cmd &= 0xff; |
3534 | |
3535 | switch( cmd ) { |
3536 | case GETVAL: |
3537 | case SETVAL: |
3538 | /* In 64 bit cross-endian situations, we will erroneously pick up |
3539 | * the wrong half of the union for the "val" element. To rectify |
3540 | * this, the entire 8-byte structure is byteswapped, followed by |
3541 | * a swap of the 4 byte val field. In other cases, the data is |
3542 | * already in proper host byte order. */ |
3543 | if (sizeof(target_su.val) != (sizeof(target_su.buf))) { |
3544 | target_su.buf = tswapal(target_su.buf); |
3545 | arg.val = tswap32(target_su.val); |
3546 | } else { |
3547 | arg.val = target_su.val; |
3548 | } |
3549 | ret = get_errno(semctl(semid, semnum, cmd, arg)); |
3550 | break; |
3551 | case GETALL: |
3552 | case SETALL: |
3553 | err = target_to_host_semarray(semid, &array, target_su.array); |
3554 | if (err) |
3555 | return err; |
3556 | arg.array = array; |
3557 | ret = get_errno(semctl(semid, semnum, cmd, arg)); |
3558 | err = host_to_target_semarray(semid, target_su.array, &array); |
3559 | if (err) |
3560 | return err; |
3561 | break; |
3562 | case IPC_STAT: |
3563 | case IPC_SET: |
3564 | case SEM_STAT: |
3565 | err = target_to_host_semid_ds(&dsarg, target_su.buf); |
3566 | if (err) |
3567 | return err; |
3568 | arg.buf = &dsarg; |
3569 | ret = get_errno(semctl(semid, semnum, cmd, arg)); |
3570 | err = host_to_target_semid_ds(target_su.buf, &dsarg); |
3571 | if (err) |
3572 | return err; |
3573 | break; |
3574 | case IPC_INFO: |
3575 | case SEM_INFO: |
3576 | arg.__buf = &seminfo; |
3577 | ret = get_errno(semctl(semid, semnum, cmd, arg)); |
3578 | err = host_to_target_seminfo(target_su.__buf, &seminfo); |
3579 | if (err) |
3580 | return err; |
3581 | break; |
3582 | case IPC_RMID: |
3583 | case GETPID: |
3584 | case GETNCNT: |
3585 | case GETZCNT: |
3586 | ret = get_errno(semctl(semid, semnum, cmd, NULL)); |
3587 | break; |
3588 | } |
3589 | |
3590 | return ret; |
3591 | } |
3592 | |
3593 | struct target_sembuf { |
3594 | unsigned short sem_num; |
3595 | short sem_op; |
3596 | short sem_flg; |
3597 | }; |
3598 | |
3599 | static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, |
3600 | abi_ulong target_addr, |
3601 | unsigned nsops) |
3602 | { |
3603 | struct target_sembuf *target_sembuf; |
3604 | int i; |
3605 | |
3606 | target_sembuf = lock_user(VERIFY_READ, target_addr, |
3607 | nsops*sizeof(struct target_sembuf), 1); |
3608 | if (!target_sembuf) |
3609 | return -TARGET_EFAULT; |
3610 | |
3611 | for(i=0; i<nsops; i++) { |
3612 | __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num); |
3613 | __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op); |
3614 | __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg); |
3615 | } |
3616 | |
3617 | unlock_user(target_sembuf, target_addr, 0); |
3618 | |
3619 | return 0; |
3620 | } |
3621 | |
3622 | static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) |
3623 | { |
3624 | struct sembuf sops[nsops]; |
3625 | abi_long ret; |
3626 | |
3627 | if (target_to_host_sembuf(sops, ptr, nsops)) |
3628 | return -TARGET_EFAULT; |
3629 | |
3630 | ret = -TARGET_ENOSYS; |
3631 | #ifdef __NR_semtimedop |
3632 | ret = get_errno(safe_semtimedop(semid, sops, nsops, NULL)); |
3633 | #endif |
3634 | #ifdef __NR_ipc |
3635 | if (ret == -TARGET_ENOSYS) { |
3636 | ret = get_errno(safe_ipc(IPCOP_semtimedop, semid, nsops, 0, sops, 0)); |
3637 | } |
3638 | #endif |
3639 | return ret; |
3640 | } |
3641 | |
3642 | struct target_msqid_ds |
3643 | { |
3644 | struct target_ipc_perm msg_perm; |
3645 | abi_ulong msg_stime; |
3646 | #if TARGET_ABI_BITS == 32 |
3647 | abi_ulong __unused1; |
3648 | #endif |
3649 | abi_ulong msg_rtime; |
3650 | #if TARGET_ABI_BITS == 32 |
3651 | abi_ulong __unused2; |
3652 | #endif |
3653 | abi_ulong msg_ctime; |
3654 | #if TARGET_ABI_BITS == 32 |
3655 | abi_ulong __unused3; |
3656 | #endif |
3657 | abi_ulong __msg_cbytes; |
3658 | abi_ulong msg_qnum; |
3659 | abi_ulong msg_qbytes; |
3660 | abi_ulong msg_lspid; |
3661 | abi_ulong msg_lrpid; |
3662 | abi_ulong __unused4; |
3663 | abi_ulong __unused5; |
3664 | }; |
3665 | |
3666 | static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, |
3667 | abi_ulong target_addr) |
3668 | { |
3669 | struct target_msqid_ds *target_md; |
3670 | |
3671 | if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) |
3672 | return -TARGET_EFAULT; |
3673 | if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr)) |
3674 | return -TARGET_EFAULT; |
3675 | host_md->msg_stime = tswapal(target_md->msg_stime); |
3676 | host_md->msg_rtime = tswapal(target_md->msg_rtime); |
3677 | host_md->msg_ctime = tswapal(target_md->msg_ctime); |
3678 | host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes); |
3679 | host_md->msg_qnum = tswapal(target_md->msg_qnum); |
3680 | host_md->msg_qbytes = tswapal(target_md->msg_qbytes); |
3681 | host_md->msg_lspid = tswapal(target_md->msg_lspid); |
3682 | host_md->msg_lrpid = tswapal(target_md->msg_lrpid); |
3683 | unlock_user_struct(target_md, target_addr, 0); |
3684 | return 0; |
3685 | } |
3686 | |
3687 | static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, |
3688 | struct msqid_ds *host_md) |
3689 | { |
3690 | struct target_msqid_ds *target_md; |
3691 | |
3692 | if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) |
3693 | return -TARGET_EFAULT; |
3694 | if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm))) |
3695 | return -TARGET_EFAULT; |
3696 | target_md->msg_stime = tswapal(host_md->msg_stime); |
3697 | target_md->msg_rtime = tswapal(host_md->msg_rtime); |
3698 | target_md->msg_ctime = tswapal(host_md->msg_ctime); |
3699 | target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes); |
3700 | target_md->msg_qnum = tswapal(host_md->msg_qnum); |
3701 | target_md->msg_qbytes = tswapal(host_md->msg_qbytes); |
3702 | target_md->msg_lspid = tswapal(host_md->msg_lspid); |
3703 | target_md->msg_lrpid = tswapal(host_md->msg_lrpid); |
3704 | unlock_user_struct(target_md, target_addr, 1); |
3705 | return 0; |
3706 | } |
3707 | |
3708 | struct target_msginfo { |
3709 | int msgpool; |
3710 | int msgmap; |
3711 | int msgmax; |
3712 | int msgmnb; |
3713 | int msgmni; |
3714 | int msgssz; |
3715 | int msgtql; |
3716 | unsigned short int msgseg; |
3717 | }; |
3718 | |
3719 | static inline abi_long host_to_target_msginfo(abi_ulong target_addr, |
3720 | struct msginfo *host_msginfo) |
3721 | { |
3722 | struct target_msginfo *target_msginfo; |
3723 | if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0)) |
3724 | return -TARGET_EFAULT; |
3725 | __put_user(host_msginfo->msgpool, &target_msginfo->msgpool); |
3726 | __put_user(host_msginfo->msgmap, &target_msginfo->msgmap); |
3727 | __put_user(host_msginfo->msgmax, &target_msginfo->msgmax); |
3728 | __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb); |
3729 | __put_user(host_msginfo->msgmni, &target_msginfo->msgmni); |
3730 | __put_user(host_msginfo->msgssz, &target_msginfo->msgssz); |
3731 | __put_user(host_msginfo->msgtql, &target_msginfo->msgtql); |
3732 | __put_user(host_msginfo->msgseg, &target_msginfo->msgseg); |
3733 | unlock_user_struct(target_msginfo, target_addr, 1); |
3734 | return 0; |
3735 | } |
3736 | |
3737 | static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr) |
3738 | { |
3739 | struct msqid_ds dsarg; |
3740 | struct msginfo msginfo; |
3741 | abi_long ret = -TARGET_EINVAL; |
3742 | |
3743 | cmd &= 0xff; |
3744 | |
3745 | switch (cmd) { |
3746 | case IPC_STAT: |
3747 | case IPC_SET: |
3748 | case MSG_STAT: |
3749 | if (target_to_host_msqid_ds(&dsarg,ptr)) |
3750 | return -TARGET_EFAULT; |
3751 | ret = get_errno(msgctl(msgid, cmd, &dsarg)); |
3752 | if (host_to_target_msqid_ds(ptr,&dsarg)) |
3753 | return -TARGET_EFAULT; |
3754 | break; |
3755 | case IPC_RMID: |
3756 | ret = get_errno(msgctl(msgid, cmd, NULL)); |
3757 | break; |
3758 | case IPC_INFO: |
3759 | case MSG_INFO: |
3760 | ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo)); |
3761 | if (host_to_target_msginfo(ptr, &msginfo)) |
3762 | return -TARGET_EFAULT; |
3763 | break; |
3764 | } |
3765 | |
3766 | return ret; |
3767 | } |
3768 | |
3769 | struct target_msgbuf { |
3770 | abi_long mtype; |
3771 | char mtext[1]; |
3772 | }; |
3773 | |
3774 | static inline abi_long do_msgsnd(int msqid, abi_long msgp, |
3775 | ssize_t msgsz, int msgflg) |
3776 | { |
3777 | struct target_msgbuf *target_mb; |
3778 | struct msgbuf *host_mb; |
3779 | abi_long ret = 0; |
3780 | |
3781 | if (msgsz < 0) { |
3782 | return -TARGET_EINVAL; |
3783 | } |
3784 | |
3785 | if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) |
3786 | return -TARGET_EFAULT; |
3787 | host_mb = g_try_malloc(msgsz + sizeof(long)); |
3788 | if (!host_mb) { |
3789 | unlock_user_struct(target_mb, msgp, 0); |
3790 | return -TARGET_ENOMEM; |
3791 | } |
3792 | host_mb->mtype = (abi_long) tswapal(target_mb->mtype); |
3793 | memcpy(host_mb->mtext, target_mb->mtext, msgsz); |
3794 | ret = -TARGET_ENOSYS; |
3795 | #ifdef __NR_msgsnd |
3796 | ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg)); |
3797 | #endif |
3798 | #ifdef __NR_ipc |
3799 | if (ret == -TARGET_ENOSYS) { |
3800 | ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, |
3801 | host_mb, 0)); |
3802 | } |
3803 | #endif |
3804 | g_free(host_mb); |
3805 | unlock_user_struct(target_mb, msgp, 0); |
3806 | |
3807 | return ret; |
3808 | } |
3809 | |
3810 | static inline abi_long do_msgrcv(int msqid, abi_long msgp, |
3811 | ssize_t msgsz, abi_long msgtyp, |
3812 | int msgflg) |
3813 | { |
3814 | struct target_msgbuf *target_mb; |
3815 | char *target_mtext; |
3816 | struct msgbuf *host_mb; |
3817 | abi_long ret = 0; |
3818 | |
3819 | if (msgsz < 0) { |
3820 | return -TARGET_EINVAL; |
3821 | } |
3822 | |
3823 | if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) |
3824 | return -TARGET_EFAULT; |
3825 | |
3826 | host_mb = g_try_malloc(msgsz + sizeof(long)); |
3827 | if (!host_mb) { |
3828 | ret = -TARGET_ENOMEM; |
3829 | goto end; |
3830 | } |
3831 | ret = -TARGET_ENOSYS; |
3832 | #ifdef __NR_msgrcv |
3833 | ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg)); |
3834 | #endif |
3835 | #ifdef __NR_ipc |
3836 | if (ret == -TARGET_ENOSYS) { |
3837 | ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz, |
3838 | msgflg, host_mb, msgtyp)); |
3839 | } |
3840 | #endif |
3841 | |
3842 | if (ret > 0) { |
3843 | abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); |
3844 | target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); |
3845 | if (!target_mtext) { |
3846 | ret = -TARGET_EFAULT; |
3847 | goto end; |
3848 | } |
3849 | memcpy(target_mb->mtext, host_mb->mtext, ret); |
3850 | unlock_user(target_mtext, target_mtext_addr, ret); |
3851 | } |
3852 | |
3853 | target_mb->mtype = tswapal(host_mb->mtype); |
3854 | |
3855 | end: |
3856 | if (target_mb) |
3857 | unlock_user_struct(target_mb, msgp, 1); |
3858 | g_free(host_mb); |
3859 | return ret; |
3860 | } |
3861 | |
3862 | static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, |
3863 | abi_ulong target_addr) |
3864 | { |
3865 | struct target_shmid_ds *target_sd; |
3866 | |
3867 | if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
3868 | return -TARGET_EFAULT; |
3869 | if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr)) |
3870 | return -TARGET_EFAULT; |
3871 | __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); |
3872 | __get_user(host_sd->shm_atime, &target_sd->shm_atime); |
3873 | __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); |
3874 | __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); |
3875 | __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); |
3876 | __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); |
3877 | __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); |
3878 | unlock_user_struct(target_sd, target_addr, 0); |
3879 | return 0; |
3880 | } |
3881 | |
3882 | static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr, |
3883 | struct shmid_ds *host_sd) |
3884 | { |
3885 | struct target_shmid_ds *target_sd; |
3886 | |
3887 | if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
3888 | return -TARGET_EFAULT; |
3889 | if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm))) |
3890 | return -TARGET_EFAULT; |
3891 | __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); |
3892 | __put_user(host_sd->shm_atime, &target_sd->shm_atime); |
3893 | __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); |
3894 | __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); |
3895 | __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); |
3896 | __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); |
3897 | __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); |
3898 | unlock_user_struct(target_sd, target_addr, 1); |
3899 | return 0; |
3900 | } |
3901 | |
3902 | struct target_shminfo { |
3903 | abi_ulong shmmax; |
3904 | abi_ulong shmmin; |
3905 | abi_ulong shmmni; |
3906 | abi_ulong shmseg; |
3907 | abi_ulong shmall; |
3908 | }; |
3909 | |
3910 | static inline abi_long host_to_target_shminfo(abi_ulong target_addr, |
3911 | struct shminfo *host_shminfo) |
3912 | { |
3913 | struct target_shminfo *target_shminfo; |
3914 | if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0)) |
3915 | return -TARGET_EFAULT; |
3916 | __put_user(host_shminfo->shmmax, &target_shminfo->shmmax); |
3917 | __put_user(host_shminfo->shmmin, &target_shminfo->shmmin); |
3918 | __put_user(host_shminfo->shmmni, &target_shminfo->shmmni); |
3919 | __put_user(host_shminfo->shmseg, &target_shminfo->shmseg); |
3920 | __put_user(host_shminfo->shmall, &target_shminfo->shmall); |
3921 | unlock_user_struct(target_shminfo, target_addr, 1); |
3922 | return 0; |
3923 | } |
3924 | |
3925 | struct target_shm_info { |
3926 | int used_ids; |
3927 | abi_ulong shm_tot; |
3928 | abi_ulong ; |
3929 | abi_ulong shm_swp; |
3930 | abi_ulong swap_attempts; |
3931 | abi_ulong swap_successes; |
3932 | }; |
3933 | |
3934 | static inline abi_long host_to_target_shm_info(abi_ulong target_addr, |
3935 | struct shm_info *host_shm_info) |
3936 | { |
3937 | struct target_shm_info *target_shm_info; |
3938 | if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0)) |
3939 | return -TARGET_EFAULT; |
3940 | __put_user(host_shm_info->used_ids, &target_shm_info->used_ids); |
3941 | __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot); |
3942 | __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss); |
3943 | __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp); |
3944 | __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts); |
3945 | __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes); |
3946 | unlock_user_struct(target_shm_info, target_addr, 1); |
3947 | return 0; |
3948 | } |
3949 | |
3950 | static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf) |
3951 | { |
3952 | struct shmid_ds dsarg; |
3953 | struct shminfo shminfo; |
3954 | struct shm_info shm_info; |
3955 | abi_long ret = -TARGET_EINVAL; |
3956 | |
3957 | cmd &= 0xff; |
3958 | |
3959 | switch(cmd) { |
3960 | case IPC_STAT: |
3961 | case IPC_SET: |
3962 | case SHM_STAT: |
3963 | if (target_to_host_shmid_ds(&dsarg, buf)) |
3964 | return -TARGET_EFAULT; |
3965 | ret = get_errno(shmctl(shmid, cmd, &dsarg)); |
3966 | if (host_to_target_shmid_ds(buf, &dsarg)) |
3967 | return -TARGET_EFAULT; |
3968 | break; |
3969 | case IPC_INFO: |
3970 | ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo)); |
3971 | if (host_to_target_shminfo(buf, &shminfo)) |
3972 | return -TARGET_EFAULT; |
3973 | break; |
3974 | case SHM_INFO: |
3975 | ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info)); |
3976 | if (host_to_target_shm_info(buf, &shm_info)) |
3977 | return -TARGET_EFAULT; |
3978 | break; |
3979 | case IPC_RMID: |
3980 | case SHM_LOCK: |
3981 | case SHM_UNLOCK: |
3982 | ret = get_errno(shmctl(shmid, cmd, NULL)); |
3983 | break; |
3984 | } |
3985 | |
3986 | return ret; |
3987 | } |
3988 | |
3989 | #ifndef TARGET_FORCE_SHMLBA |
3990 | /* For most architectures, SHMLBA is the same as the page size; |
3991 | * some architectures have larger values, in which case they should |
3992 | * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function. |
3993 | * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA |
3994 | * and defining its own value for SHMLBA. |
3995 | * |
3996 | * The kernel also permits SHMLBA to be set by the architecture to a |
3997 | * value larger than the page size without setting __ARCH_FORCE_SHMLBA; |
3998 | * this means that addresses are rounded to the large size if |
3999 | * SHM_RND is set but addresses not aligned to that size are not rejected |
4000 | * as long as they are at least page-aligned. Since the only architecture |
4001 | * which uses this is ia64 this code doesn't provide for that oddity. |
4002 | */ |
4003 | static inline abi_ulong target_shmlba(CPUArchState *cpu_env) |
4004 | { |
4005 | return TARGET_PAGE_SIZE; |
4006 | } |
4007 | #endif |
4008 | |
4009 | static inline abi_ulong do_shmat(CPUArchState *cpu_env, |
4010 | int shmid, abi_ulong shmaddr, int shmflg) |
4011 | { |
4012 | abi_long raddr; |
4013 | void *host_raddr; |
4014 | struct shmid_ds shm_info; |
4015 | int i,ret; |
4016 | abi_ulong shmlba; |
4017 | |
4018 | /* find out the length of the shared memory segment */ |
4019 | ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info)); |
4020 | if (is_error(ret)) { |
4021 | /* can't get length, bail out */ |
4022 | return ret; |
4023 | } |
4024 | |
4025 | shmlba = target_shmlba(cpu_env); |
4026 | |
4027 | if (shmaddr & (shmlba - 1)) { |
4028 | if (shmflg & SHM_RND) { |
4029 | shmaddr &= ~(shmlba - 1); |
4030 | } else { |
4031 | return -TARGET_EINVAL; |
4032 | } |
4033 | } |
4034 | if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) { |
4035 | return -TARGET_EINVAL; |
4036 | } |
4037 | |
4038 | mmap_lock(); |
4039 | |
4040 | if (shmaddr) |
4041 | host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); |
4042 | else { |
4043 | abi_ulong mmap_start; |
4044 | |
4045 | /* In order to use the host shmat, we need to honor host SHMLBA. */ |
4046 | mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba)); |
4047 | |
4048 | if (mmap_start == -1) { |
4049 | errno = ENOMEM; |
4050 | host_raddr = (void *)-1; |
4051 | } else |
4052 | host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); |
4053 | } |
4054 | |
4055 | if (host_raddr == (void *)-1) { |
4056 | mmap_unlock(); |
4057 | return get_errno((long)host_raddr); |
4058 | } |
4059 | raddr=h2g((unsigned long)host_raddr); |
4060 | |
4061 | page_set_flags(raddr, raddr + shm_info.shm_segsz, |
4062 | PAGE_VALID | PAGE_READ | |
4063 | ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE)); |
4064 | |
4065 | for (i = 0; i < N_SHM_REGIONS; i++) { |
4066 | if (!shm_regions[i].in_use) { |
4067 | shm_regions[i].in_use = true; |
4068 | shm_regions[i].start = raddr; |
4069 | shm_regions[i].size = shm_info.shm_segsz; |
4070 | break; |
4071 | } |
4072 | } |
4073 | |
4074 | mmap_unlock(); |
4075 | return raddr; |
4076 | |
4077 | } |
4078 | |
4079 | static inline abi_long do_shmdt(abi_ulong shmaddr) |
4080 | { |
4081 | int i; |
4082 | abi_long rv; |
4083 | |
4084 | mmap_lock(); |
4085 | |
4086 | for (i = 0; i < N_SHM_REGIONS; ++i) { |
4087 | if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) { |
4088 | shm_regions[i].in_use = false; |
4089 | page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); |
4090 | break; |
4091 | } |
4092 | } |
4093 | rv = get_errno(shmdt(g2h(shmaddr))); |
4094 | |
4095 | mmap_unlock(); |
4096 | |
4097 | return rv; |
4098 | } |
4099 | |
4100 | #ifdef TARGET_NR_ipc |
4101 | /* ??? This only works with linear mappings. */ |
4102 | /* do_ipc() must return target values and target errnos. */ |
4103 | static abi_long do_ipc(CPUArchState *cpu_env, |
4104 | unsigned int call, abi_long first, |
4105 | abi_long second, abi_long third, |
4106 | abi_long ptr, abi_long fifth) |
4107 | { |
4108 | int version; |
4109 | abi_long ret = 0; |
4110 | |
4111 | version = call >> 16; |
4112 | call &= 0xffff; |
4113 | |
4114 | switch (call) { |
4115 | case IPCOP_semop: |
4116 | ret = do_semop(first, ptr, second); |
4117 | break; |
4118 | |
4119 | case IPCOP_semget: |
4120 | ret = get_errno(semget(first, second, third)); |
4121 | break; |
4122 | |
4123 | case IPCOP_semctl: { |
4124 | /* The semun argument to semctl is passed by value, so dereference the |
4125 | * ptr argument. */ |
4126 | abi_ulong atptr; |
4127 | get_user_ual(atptr, ptr); |
4128 | ret = do_semctl(first, second, third, atptr); |
4129 | break; |
4130 | } |
4131 | |
4132 | case IPCOP_msgget: |
4133 | ret = get_errno(msgget(first, second)); |
4134 | break; |
4135 | |
4136 | case IPCOP_msgsnd: |
4137 | ret = do_msgsnd(first, ptr, second, third); |
4138 | break; |
4139 | |
4140 | case IPCOP_msgctl: |
4141 | ret = do_msgctl(first, second, ptr); |
4142 | break; |
4143 | |
4144 | case IPCOP_msgrcv: |
4145 | switch (version) { |
4146 | case 0: |
4147 | { |
4148 | struct target_ipc_kludge { |
4149 | abi_long msgp; |
4150 | abi_long msgtyp; |
4151 | } *tmp; |
4152 | |
4153 | if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) { |
4154 | ret = -TARGET_EFAULT; |
4155 | break; |
4156 | } |
4157 | |
4158 | ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third); |
4159 | |
4160 | unlock_user_struct(tmp, ptr, 0); |
4161 | break; |
4162 | } |
4163 | default: |
4164 | ret = do_msgrcv(first, ptr, second, fifth, third); |
4165 | } |
4166 | break; |
4167 | |
4168 | case IPCOP_shmat: |
4169 | switch (version) { |
4170 | default: |
4171 | { |
4172 | abi_ulong raddr; |
4173 | raddr = do_shmat(cpu_env, first, ptr, second); |
4174 | if (is_error(raddr)) |
4175 | return get_errno(raddr); |
4176 | if (put_user_ual(raddr, third)) |
4177 | return -TARGET_EFAULT; |
4178 | break; |
4179 | } |
4180 | case 1: |
4181 | ret = -TARGET_EINVAL; |
4182 | break; |
4183 | } |
4184 | break; |
4185 | case IPCOP_shmdt: |
4186 | ret = do_shmdt(ptr); |
4187 | break; |
4188 | |
4189 | case IPCOP_shmget: |
4190 | /* IPC_* flag values are the same on all linux platforms */ |
4191 | ret = get_errno(shmget(first, second, third)); |
4192 | break; |
4193 | |
4194 | /* IPC_* and SHM_* command values are the same on all linux platforms */ |
4195 | case IPCOP_shmctl: |
4196 | ret = do_shmctl(first, second, ptr); |
4197 | break; |
4198 | default: |
4199 | gemu_log("Unsupported ipc call: %d (version %d)\n" , call, version); |
4200 | ret = -TARGET_ENOSYS; |
4201 | break; |
4202 | } |
4203 | return ret; |
4204 | } |
4205 | #endif |
4206 | |
4207 | /* kernel structure types definitions */ |
4208 | |
4209 | #define STRUCT(name, ...) STRUCT_ ## name, |
4210 | #define STRUCT_SPECIAL(name) STRUCT_ ## name, |
4211 | enum { |
4212 | #include "syscall_types.h" |
4213 | STRUCT_MAX |
4214 | }; |
4215 | #undef STRUCT |
4216 | #undef STRUCT_SPECIAL |
4217 | |
4218 | #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL }; |
4219 | #define STRUCT_SPECIAL(name) |
4220 | #include "syscall_types.h" |
4221 | #undef STRUCT |
4222 | #undef STRUCT_SPECIAL |
4223 | |
4224 | typedef struct IOCTLEntry IOCTLEntry; |
4225 | |
4226 | typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp, |
4227 | int fd, int cmd, abi_long arg); |
4228 | |
4229 | struct IOCTLEntry { |
4230 | int target_cmd; |
4231 | unsigned int host_cmd; |
4232 | const char *name; |
4233 | int access; |
4234 | do_ioctl_fn *do_ioctl; |
4235 | const argtype arg_type[5]; |
4236 | }; |
4237 | |
4238 | #define IOC_R 0x0001 |
4239 | #define IOC_W 0x0002 |
4240 | #define IOC_RW (IOC_R | IOC_W) |
4241 | |
4242 | #define MAX_STRUCT_SIZE 4096 |
4243 | |
4244 | #ifdef CONFIG_FIEMAP |
4245 | /* So fiemap access checks don't overflow on 32 bit systems. |
4246 | * This is very slightly smaller than the limit imposed by |
4247 | * the underlying kernel. |
4248 | */ |
4249 | #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \ |
4250 | / sizeof(struct fiemap_extent)) |
4251 | |
4252 | static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp, |
4253 | int fd, int cmd, abi_long arg) |
4254 | { |
4255 | /* The parameter for this ioctl is a struct fiemap followed |
4256 | * by an array of struct fiemap_extent whose size is set |
4257 | * in fiemap->fm_extent_count. The array is filled in by the |
4258 | * ioctl. |
4259 | */ |
4260 | int target_size_in, target_size_out; |
4261 | struct fiemap *fm; |
4262 | const argtype *arg_type = ie->arg_type; |
4263 | const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) }; |
4264 | void *argptr, *p; |
4265 | abi_long ret; |
4266 | int i, extent_size = thunk_type_size(extent_arg_type, 0); |
4267 | uint32_t outbufsz; |
4268 | int free_fm = 0; |
4269 | |
4270 | assert(arg_type[0] == TYPE_PTR); |
4271 | assert(ie->access == IOC_RW); |
4272 | arg_type++; |
4273 | target_size_in = thunk_type_size(arg_type, 0); |
4274 | argptr = lock_user(VERIFY_READ, arg, target_size_in, 1); |
4275 | if (!argptr) { |
4276 | return -TARGET_EFAULT; |
4277 | } |
4278 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
4279 | unlock_user(argptr, arg, 0); |
4280 | fm = (struct fiemap *)buf_temp; |
4281 | if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) { |
4282 | return -TARGET_EINVAL; |
4283 | } |
4284 | |
4285 | outbufsz = sizeof (*fm) + |
4286 | (sizeof(struct fiemap_extent) * fm->fm_extent_count); |
4287 | |
4288 | if (outbufsz > MAX_STRUCT_SIZE) { |
4289 | /* We can't fit all the extents into the fixed size buffer. |
4290 | * Allocate one that is large enough and use it instead. |
4291 | */ |
4292 | fm = g_try_malloc(outbufsz); |
4293 | if (!fm) { |
4294 | return -TARGET_ENOMEM; |
4295 | } |
4296 | memcpy(fm, buf_temp, sizeof(struct fiemap)); |
4297 | free_fm = 1; |
4298 | } |
4299 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm)); |
4300 | if (!is_error(ret)) { |
4301 | target_size_out = target_size_in; |
4302 | /* An extent_count of 0 means we were only counting the extents |
4303 | * so there are no structs to copy |
4304 | */ |
4305 | if (fm->fm_extent_count != 0) { |
4306 | target_size_out += fm->fm_mapped_extents * extent_size; |
4307 | } |
4308 | argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0); |
4309 | if (!argptr) { |
4310 | ret = -TARGET_EFAULT; |
4311 | } else { |
4312 | /* Convert the struct fiemap */ |
4313 | thunk_convert(argptr, fm, arg_type, THUNK_TARGET); |
4314 | if (fm->fm_extent_count != 0) { |
4315 | p = argptr + target_size_in; |
4316 | /* ...and then all the struct fiemap_extents */ |
4317 | for (i = 0; i < fm->fm_mapped_extents; i++) { |
4318 | thunk_convert(p, &fm->fm_extents[i], extent_arg_type, |
4319 | THUNK_TARGET); |
4320 | p += extent_size; |
4321 | } |
4322 | } |
4323 | unlock_user(argptr, arg, target_size_out); |
4324 | } |
4325 | } |
4326 | if (free_fm) { |
4327 | g_free(fm); |
4328 | } |
4329 | return ret; |
4330 | } |
4331 | #endif |
4332 | |
4333 | static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp, |
4334 | int fd, int cmd, abi_long arg) |
4335 | { |
4336 | const argtype *arg_type = ie->arg_type; |
4337 | int target_size; |
4338 | void *argptr; |
4339 | int ret; |
4340 | struct ifconf *host_ifconf; |
4341 | uint32_t outbufsz; |
4342 | const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) }; |
4343 | int target_ifreq_size; |
4344 | int nb_ifreq; |
4345 | int free_buf = 0; |
4346 | int i; |
4347 | int target_ifc_len; |
4348 | abi_long target_ifc_buf; |
4349 | int host_ifc_len; |
4350 | char *host_ifc_buf; |
4351 | |
4352 | assert(arg_type[0] == TYPE_PTR); |
4353 | assert(ie->access == IOC_RW); |
4354 | |
4355 | arg_type++; |
4356 | target_size = thunk_type_size(arg_type, 0); |
4357 | |
4358 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4359 | if (!argptr) |
4360 | return -TARGET_EFAULT; |
4361 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
4362 | unlock_user(argptr, arg, 0); |
4363 | |
4364 | host_ifconf = (struct ifconf *)(unsigned long)buf_temp; |
4365 | target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf; |
4366 | target_ifreq_size = thunk_type_size(ifreq_arg_type, 0); |
4367 | |
4368 | if (target_ifc_buf != 0) { |
4369 | target_ifc_len = host_ifconf->ifc_len; |
4370 | nb_ifreq = target_ifc_len / target_ifreq_size; |
4371 | host_ifc_len = nb_ifreq * sizeof(struct ifreq); |
4372 | |
4373 | outbufsz = sizeof(*host_ifconf) + host_ifc_len; |
4374 | if (outbufsz > MAX_STRUCT_SIZE) { |
4375 | /* |
4376 | * We can't fit all the extents into the fixed size buffer. |
4377 | * Allocate one that is large enough and use it instead. |
4378 | */ |
4379 | host_ifconf = malloc(outbufsz); |
4380 | if (!host_ifconf) { |
4381 | return -TARGET_ENOMEM; |
4382 | } |
4383 | memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf)); |
4384 | free_buf = 1; |
4385 | } |
4386 | host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf); |
4387 | |
4388 | host_ifconf->ifc_len = host_ifc_len; |
4389 | } else { |
4390 | host_ifc_buf = NULL; |
4391 | } |
4392 | host_ifconf->ifc_buf = host_ifc_buf; |
4393 | |
4394 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf)); |
4395 | if (!is_error(ret)) { |
4396 | /* convert host ifc_len to target ifc_len */ |
4397 | |
4398 | nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq); |
4399 | target_ifc_len = nb_ifreq * target_ifreq_size; |
4400 | host_ifconf->ifc_len = target_ifc_len; |
4401 | |
4402 | /* restore target ifc_buf */ |
4403 | |
4404 | host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf; |
4405 | |
4406 | /* copy struct ifconf to target user */ |
4407 | |
4408 | argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
4409 | if (!argptr) |
4410 | return -TARGET_EFAULT; |
4411 | thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET); |
4412 | unlock_user(argptr, arg, target_size); |
4413 | |
4414 | if (target_ifc_buf != 0) { |
4415 | /* copy ifreq[] to target user */ |
4416 | argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0); |
4417 | for (i = 0; i < nb_ifreq ; i++) { |
4418 | thunk_convert(argptr + i * target_ifreq_size, |
4419 | host_ifc_buf + i * sizeof(struct ifreq), |
4420 | ifreq_arg_type, THUNK_TARGET); |
4421 | } |
4422 | unlock_user(argptr, target_ifc_buf, target_ifc_len); |
4423 | } |
4424 | } |
4425 | |
4426 | if (free_buf) { |
4427 | free(host_ifconf); |
4428 | } |
4429 | |
4430 | return ret; |
4431 | } |
4432 | |
4433 | #if defined(CONFIG_USBFS) |
4434 | #if HOST_LONG_BITS > 64 |
4435 | #error USBDEVFS thunks do not support >64 bit hosts yet. |
4436 | #endif |
4437 | struct live_urb { |
4438 | uint64_t target_urb_adr; |
4439 | uint64_t target_buf_adr; |
4440 | char *target_buf_ptr; |
4441 | struct usbdevfs_urb host_urb; |
4442 | }; |
4443 | |
4444 | static GHashTable *usbdevfs_urb_hashtable(void) |
4445 | { |
4446 | static GHashTable *urb_hashtable; |
4447 | |
4448 | if (!urb_hashtable) { |
4449 | urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal); |
4450 | } |
4451 | return urb_hashtable; |
4452 | } |
4453 | |
4454 | static void urb_hashtable_insert(struct live_urb *urb) |
4455 | { |
4456 | GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
4457 | g_hash_table_insert(urb_hashtable, urb, urb); |
4458 | } |
4459 | |
4460 | static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr) |
4461 | { |
4462 | GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
4463 | return g_hash_table_lookup(urb_hashtable, &target_urb_adr); |
4464 | } |
4465 | |
4466 | static void urb_hashtable_remove(struct live_urb *urb) |
4467 | { |
4468 | GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
4469 | g_hash_table_remove(urb_hashtable, urb); |
4470 | } |
4471 | |
4472 | static abi_long |
4473 | do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp, |
4474 | int fd, int cmd, abi_long arg) |
4475 | { |
4476 | const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) }; |
4477 | const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 }; |
4478 | struct live_urb *lurb; |
4479 | void *argptr; |
4480 | uint64_t hurb; |
4481 | int target_size; |
4482 | uintptr_t target_urb_adr; |
4483 | abi_long ret; |
4484 | |
4485 | target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET); |
4486 | |
4487 | memset(buf_temp, 0, sizeof(uint64_t)); |
4488 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
4489 | if (is_error(ret)) { |
4490 | return ret; |
4491 | } |
4492 | |
4493 | memcpy(&hurb, buf_temp, sizeof(uint64_t)); |
4494 | lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb)); |
4495 | if (!lurb->target_urb_adr) { |
4496 | return -TARGET_EFAULT; |
4497 | } |
4498 | urb_hashtable_remove(lurb); |
4499 | unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, |
4500 | lurb->host_urb.buffer_length); |
4501 | lurb->target_buf_ptr = NULL; |
4502 | |
4503 | /* restore the guest buffer pointer */ |
4504 | lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr; |
4505 | |
4506 | /* update the guest urb struct */ |
4507 | argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0); |
4508 | if (!argptr) { |
4509 | g_free(lurb); |
4510 | return -TARGET_EFAULT; |
4511 | } |
4512 | thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET); |
4513 | unlock_user(argptr, lurb->target_urb_adr, target_size); |
4514 | |
4515 | target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET); |
4516 | /* write back the urb handle */ |
4517 | argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
4518 | if (!argptr) { |
4519 | g_free(lurb); |
4520 | return -TARGET_EFAULT; |
4521 | } |
4522 | |
4523 | /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */ |
4524 | target_urb_adr = lurb->target_urb_adr; |
4525 | thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET); |
4526 | unlock_user(argptr, arg, target_size); |
4527 | |
4528 | g_free(lurb); |
4529 | return ret; |
4530 | } |
4531 | |
4532 | static abi_long |
4533 | do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie, |
4534 | uint8_t *buf_temp __attribute__((unused)), |
4535 | int fd, int cmd, abi_long arg) |
4536 | { |
4537 | struct live_urb *lurb; |
4538 | |
4539 | /* map target address back to host URB with metadata. */ |
4540 | lurb = urb_hashtable_lookup(arg); |
4541 | if (!lurb) { |
4542 | return -TARGET_EFAULT; |
4543 | } |
4544 | return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb)); |
4545 | } |
4546 | |
4547 | static abi_long |
4548 | do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp, |
4549 | int fd, int cmd, abi_long arg) |
4550 | { |
4551 | const argtype *arg_type = ie->arg_type; |
4552 | int target_size; |
4553 | abi_long ret; |
4554 | void *argptr; |
4555 | int rw_dir; |
4556 | struct live_urb *lurb; |
4557 | |
4558 | /* |
4559 | * each submitted URB needs to map to a unique ID for the |
4560 | * kernel, and that unique ID needs to be a pointer to |
4561 | * host memory. hence, we need to malloc for each URB. |
4562 | * isochronous transfers have a variable length struct. |
4563 | */ |
4564 | arg_type++; |
4565 | target_size = thunk_type_size(arg_type, THUNK_TARGET); |
4566 | |
4567 | /* construct host copy of urb and metadata */ |
4568 | lurb = g_try_malloc0(sizeof(struct live_urb)); |
4569 | if (!lurb) { |
4570 | return -TARGET_ENOMEM; |
4571 | } |
4572 | |
4573 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4574 | if (!argptr) { |
4575 | g_free(lurb); |
4576 | return -TARGET_EFAULT; |
4577 | } |
4578 | thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST); |
4579 | unlock_user(argptr, arg, 0); |
4580 | |
4581 | lurb->target_urb_adr = arg; |
4582 | lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer; |
4583 | |
4584 | /* buffer space used depends on endpoint type so lock the entire buffer */ |
4585 | /* control type urbs should check the buffer contents for true direction */ |
4586 | rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ; |
4587 | lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr, |
4588 | lurb->host_urb.buffer_length, 1); |
4589 | if (lurb->target_buf_ptr == NULL) { |
4590 | g_free(lurb); |
4591 | return -TARGET_EFAULT; |
4592 | } |
4593 | |
4594 | /* update buffer pointer in host copy */ |
4595 | lurb->host_urb.buffer = lurb->target_buf_ptr; |
4596 | |
4597 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb)); |
4598 | if (is_error(ret)) { |
4599 | unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0); |
4600 | g_free(lurb); |
4601 | } else { |
4602 | urb_hashtable_insert(lurb); |
4603 | } |
4604 | |
4605 | return ret; |
4606 | } |
4607 | #endif /* CONFIG_USBFS */ |
4608 | |
4609 | static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, |
4610 | int cmd, abi_long arg) |
4611 | { |
4612 | void *argptr; |
4613 | struct dm_ioctl *host_dm; |
4614 | abi_long guest_data; |
4615 | uint32_t guest_data_size; |
4616 | int target_size; |
4617 | const argtype *arg_type = ie->arg_type; |
4618 | abi_long ret; |
4619 | void *big_buf = NULL; |
4620 | char *host_data; |
4621 | |
4622 | arg_type++; |
4623 | target_size = thunk_type_size(arg_type, 0); |
4624 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4625 | if (!argptr) { |
4626 | ret = -TARGET_EFAULT; |
4627 | goto out; |
4628 | } |
4629 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
4630 | unlock_user(argptr, arg, 0); |
4631 | |
4632 | /* buf_temp is too small, so fetch things into a bigger buffer */ |
4633 | big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2); |
4634 | memcpy(big_buf, buf_temp, target_size); |
4635 | buf_temp = big_buf; |
4636 | host_dm = big_buf; |
4637 | |
4638 | guest_data = arg + host_dm->data_start; |
4639 | if ((guest_data - arg) < 0) { |
4640 | ret = -TARGET_EINVAL; |
4641 | goto out; |
4642 | } |
4643 | guest_data_size = host_dm->data_size - host_dm->data_start; |
4644 | host_data = (char*)host_dm + host_dm->data_start; |
4645 | |
4646 | argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1); |
4647 | if (!argptr) { |
4648 | ret = -TARGET_EFAULT; |
4649 | goto out; |
4650 | } |
4651 | |
4652 | switch (ie->host_cmd) { |
4653 | case DM_REMOVE_ALL: |
4654 | case DM_LIST_DEVICES: |
4655 | case DM_DEV_CREATE: |
4656 | case DM_DEV_REMOVE: |
4657 | case DM_DEV_SUSPEND: |
4658 | case DM_DEV_STATUS: |
4659 | case DM_DEV_WAIT: |
4660 | case DM_TABLE_STATUS: |
4661 | case DM_TABLE_CLEAR: |
4662 | case DM_TABLE_DEPS: |
4663 | case DM_LIST_VERSIONS: |
4664 | /* no input data */ |
4665 | break; |
4666 | case DM_DEV_RENAME: |
4667 | case DM_DEV_SET_GEOMETRY: |
4668 | /* data contains only strings */ |
4669 | memcpy(host_data, argptr, guest_data_size); |
4670 | break; |
4671 | case DM_TARGET_MSG: |
4672 | memcpy(host_data, argptr, guest_data_size); |
4673 | *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr); |
4674 | break; |
4675 | case DM_TABLE_LOAD: |
4676 | { |
4677 | void *gspec = argptr; |
4678 | void *cur_data = host_data; |
4679 | const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; |
4680 | int spec_size = thunk_type_size(arg_type, 0); |
4681 | int i; |
4682 | |
4683 | for (i = 0; i < host_dm->target_count; i++) { |
4684 | struct dm_target_spec *spec = cur_data; |
4685 | uint32_t next; |
4686 | int slen; |
4687 | |
4688 | thunk_convert(spec, gspec, arg_type, THUNK_HOST); |
4689 | slen = strlen((char*)gspec + spec_size) + 1; |
4690 | next = spec->next; |
4691 | spec->next = sizeof(*spec) + slen; |
4692 | strcpy((char*)&spec[1], gspec + spec_size); |
4693 | gspec += next; |
4694 | cur_data += spec->next; |
4695 | } |
4696 | break; |
4697 | } |
4698 | default: |
4699 | ret = -TARGET_EINVAL; |
4700 | unlock_user(argptr, guest_data, 0); |
4701 | goto out; |
4702 | } |
4703 | unlock_user(argptr, guest_data, 0); |
4704 | |
4705 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
4706 | if (!is_error(ret)) { |
4707 | guest_data = arg + host_dm->data_start; |
4708 | guest_data_size = host_dm->data_size - host_dm->data_start; |
4709 | argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0); |
4710 | switch (ie->host_cmd) { |
4711 | case DM_REMOVE_ALL: |
4712 | case DM_DEV_CREATE: |
4713 | case DM_DEV_REMOVE: |
4714 | case DM_DEV_RENAME: |
4715 | case DM_DEV_SUSPEND: |
4716 | case DM_DEV_STATUS: |
4717 | case DM_TABLE_LOAD: |
4718 | case DM_TABLE_CLEAR: |
4719 | case DM_TARGET_MSG: |
4720 | case DM_DEV_SET_GEOMETRY: |
4721 | /* no return data */ |
4722 | break; |
4723 | case DM_LIST_DEVICES: |
4724 | { |
4725 | struct dm_name_list *nl = (void*)host_dm + host_dm->data_start; |
4726 | uint32_t remaining_data = guest_data_size; |
4727 | void *cur_data = argptr; |
4728 | const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) }; |
4729 | int nl_size = 12; /* can't use thunk_size due to alignment */ |
4730 | |
4731 | while (1) { |
4732 | uint32_t next = nl->next; |
4733 | if (next) { |
4734 | nl->next = nl_size + (strlen(nl->name) + 1); |
4735 | } |
4736 | if (remaining_data < nl->next) { |
4737 | host_dm->flags |= DM_BUFFER_FULL_FLAG; |
4738 | break; |
4739 | } |
4740 | thunk_convert(cur_data, nl, arg_type, THUNK_TARGET); |
4741 | strcpy(cur_data + nl_size, nl->name); |
4742 | cur_data += nl->next; |
4743 | remaining_data -= nl->next; |
4744 | if (!next) { |
4745 | break; |
4746 | } |
4747 | nl = (void*)nl + next; |
4748 | } |
4749 | break; |
4750 | } |
4751 | case DM_DEV_WAIT: |
4752 | case DM_TABLE_STATUS: |
4753 | { |
4754 | struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start; |
4755 | void *cur_data = argptr; |
4756 | const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; |
4757 | int spec_size = thunk_type_size(arg_type, 0); |
4758 | int i; |
4759 | |
4760 | for (i = 0; i < host_dm->target_count; i++) { |
4761 | uint32_t next = spec->next; |
4762 | int slen = strlen((char*)&spec[1]) + 1; |
4763 | spec->next = (cur_data - argptr) + spec_size + slen; |
4764 | if (guest_data_size < spec->next) { |
4765 | host_dm->flags |= DM_BUFFER_FULL_FLAG; |
4766 | break; |
4767 | } |
4768 | thunk_convert(cur_data, spec, arg_type, THUNK_TARGET); |
4769 | strcpy(cur_data + spec_size, (char*)&spec[1]); |
4770 | cur_data = argptr + spec->next; |
4771 | spec = (void*)host_dm + host_dm->data_start + next; |
4772 | } |
4773 | break; |
4774 | } |
4775 | case DM_TABLE_DEPS: |
4776 | { |
4777 | void *hdata = (void*)host_dm + host_dm->data_start; |
4778 | int count = *(uint32_t*)hdata; |
4779 | uint64_t *hdev = hdata + 8; |
4780 | uint64_t *gdev = argptr + 8; |
4781 | int i; |
4782 | |
4783 | *(uint32_t*)argptr = tswap32(count); |
4784 | for (i = 0; i < count; i++) { |
4785 | *gdev = tswap64(*hdev); |
4786 | gdev++; |
4787 | hdev++; |
4788 | } |
4789 | break; |
4790 | } |
4791 | case DM_LIST_VERSIONS: |
4792 | { |
4793 | struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start; |
4794 | uint32_t remaining_data = guest_data_size; |
4795 | void *cur_data = argptr; |
4796 | const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) }; |
4797 | int vers_size = thunk_type_size(arg_type, 0); |
4798 | |
4799 | while (1) { |
4800 | uint32_t next = vers->next; |
4801 | if (next) { |
4802 | vers->next = vers_size + (strlen(vers->name) + 1); |
4803 | } |
4804 | if (remaining_data < vers->next) { |
4805 | host_dm->flags |= DM_BUFFER_FULL_FLAG; |
4806 | break; |
4807 | } |
4808 | thunk_convert(cur_data, vers, arg_type, THUNK_TARGET); |
4809 | strcpy(cur_data + vers_size, vers->name); |
4810 | cur_data += vers->next; |
4811 | remaining_data -= vers->next; |
4812 | if (!next) { |
4813 | break; |
4814 | } |
4815 | vers = (void*)vers + next; |
4816 | } |
4817 | break; |
4818 | } |
4819 | default: |
4820 | unlock_user(argptr, guest_data, 0); |
4821 | ret = -TARGET_EINVAL; |
4822 | goto out; |
4823 | } |
4824 | unlock_user(argptr, guest_data, guest_data_size); |
4825 | |
4826 | argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
4827 | if (!argptr) { |
4828 | ret = -TARGET_EFAULT; |
4829 | goto out; |
4830 | } |
4831 | thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
4832 | unlock_user(argptr, arg, target_size); |
4833 | } |
4834 | out: |
4835 | g_free(big_buf); |
4836 | return ret; |
4837 | } |
4838 | |
4839 | static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, |
4840 | int cmd, abi_long arg) |
4841 | { |
4842 | void *argptr; |
4843 | int target_size; |
4844 | const argtype *arg_type = ie->arg_type; |
4845 | const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) }; |
4846 | abi_long ret; |
4847 | |
4848 | struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp; |
4849 | struct blkpg_partition host_part; |
4850 | |
4851 | /* Read and convert blkpg */ |
4852 | arg_type++; |
4853 | target_size = thunk_type_size(arg_type, 0); |
4854 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4855 | if (!argptr) { |
4856 | ret = -TARGET_EFAULT; |
4857 | goto out; |
4858 | } |
4859 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
4860 | unlock_user(argptr, arg, 0); |
4861 | |
4862 | switch (host_blkpg->op) { |
4863 | case BLKPG_ADD_PARTITION: |
4864 | case BLKPG_DEL_PARTITION: |
4865 | /* payload is struct blkpg_partition */ |
4866 | break; |
4867 | default: |
4868 | /* Unknown opcode */ |
4869 | ret = -TARGET_EINVAL; |
4870 | goto out; |
4871 | } |
4872 | |
4873 | /* Read and convert blkpg->data */ |
4874 | arg = (abi_long)(uintptr_t)host_blkpg->data; |
4875 | target_size = thunk_type_size(part_arg_type, 0); |
4876 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4877 | if (!argptr) { |
4878 | ret = -TARGET_EFAULT; |
4879 | goto out; |
4880 | } |
4881 | thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST); |
4882 | unlock_user(argptr, arg, 0); |
4883 | |
4884 | /* Swizzle the data pointer to our local copy and call! */ |
4885 | host_blkpg->data = &host_part; |
4886 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg)); |
4887 | |
4888 | out: |
4889 | return ret; |
4890 | } |
4891 | |
4892 | static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp, |
4893 | int fd, int cmd, abi_long arg) |
4894 | { |
4895 | const argtype *arg_type = ie->arg_type; |
4896 | const StructEntry *se; |
4897 | const argtype *field_types; |
4898 | const int *dst_offsets, *src_offsets; |
4899 | int target_size; |
4900 | void *argptr; |
4901 | abi_ulong *target_rt_dev_ptr = NULL; |
4902 | unsigned long *host_rt_dev_ptr = NULL; |
4903 | abi_long ret; |
4904 | int i; |
4905 | |
4906 | assert(ie->access == IOC_W); |
4907 | assert(*arg_type == TYPE_PTR); |
4908 | arg_type++; |
4909 | assert(*arg_type == TYPE_STRUCT); |
4910 | target_size = thunk_type_size(arg_type, 0); |
4911 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
4912 | if (!argptr) { |
4913 | return -TARGET_EFAULT; |
4914 | } |
4915 | arg_type++; |
4916 | assert(*arg_type == (int)STRUCT_rtentry); |
4917 | se = struct_entries + *arg_type++; |
4918 | assert(se->convert[0] == NULL); |
4919 | /* convert struct here to be able to catch rt_dev string */ |
4920 | field_types = se->field_types; |
4921 | dst_offsets = se->field_offsets[THUNK_HOST]; |
4922 | src_offsets = se->field_offsets[THUNK_TARGET]; |
4923 | for (i = 0; i < se->nb_fields; i++) { |
4924 | if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) { |
4925 | assert(*field_types == TYPE_PTRVOID); |
4926 | target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]); |
4927 | host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]); |
4928 | if (*target_rt_dev_ptr != 0) { |
4929 | *host_rt_dev_ptr = (unsigned long)lock_user_string( |
4930 | tswapal(*target_rt_dev_ptr)); |
4931 | if (!*host_rt_dev_ptr) { |
4932 | unlock_user(argptr, arg, 0); |
4933 | return -TARGET_EFAULT; |
4934 | } |
4935 | } else { |
4936 | *host_rt_dev_ptr = 0; |
4937 | } |
4938 | field_types++; |
4939 | continue; |
4940 | } |
4941 | field_types = thunk_convert(buf_temp + dst_offsets[i], |
4942 | argptr + src_offsets[i], |
4943 | field_types, THUNK_HOST); |
4944 | } |
4945 | unlock_user(argptr, arg, 0); |
4946 | |
4947 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
4948 | |
4949 | assert(host_rt_dev_ptr != NULL); |
4950 | assert(target_rt_dev_ptr != NULL); |
4951 | if (*host_rt_dev_ptr != 0) { |
4952 | unlock_user((void *)*host_rt_dev_ptr, |
4953 | *target_rt_dev_ptr, 0); |
4954 | } |
4955 | return ret; |
4956 | } |
4957 | |
4958 | static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp, |
4959 | int fd, int cmd, abi_long arg) |
4960 | { |
4961 | int sig = target_to_host_signal(arg); |
4962 | return get_errno(safe_ioctl(fd, ie->host_cmd, sig)); |
4963 | } |
4964 | |
4965 | static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp, |
4966 | int fd, int cmd, abi_long arg) |
4967 | { |
4968 | struct timeval tv; |
4969 | abi_long ret; |
4970 | |
4971 | ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv)); |
4972 | if (is_error(ret)) { |
4973 | return ret; |
4974 | } |
4975 | |
4976 | if (cmd == (int)TARGET_SIOCGSTAMP_OLD) { |
4977 | if (copy_to_user_timeval(arg, &tv)) { |
4978 | return -TARGET_EFAULT; |
4979 | } |
4980 | } else { |
4981 | if (copy_to_user_timeval64(arg, &tv)) { |
4982 | return -TARGET_EFAULT; |
4983 | } |
4984 | } |
4985 | |
4986 | return ret; |
4987 | } |
4988 | |
4989 | static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp, |
4990 | int fd, int cmd, abi_long arg) |
4991 | { |
4992 | struct timespec ts; |
4993 | abi_long ret; |
4994 | |
4995 | ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts)); |
4996 | if (is_error(ret)) { |
4997 | return ret; |
4998 | } |
4999 | |
5000 | if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) { |
5001 | if (host_to_target_timespec(arg, &ts)) { |
5002 | return -TARGET_EFAULT; |
5003 | } |
5004 | } else{ |
5005 | if (host_to_target_timespec64(arg, &ts)) { |
5006 | return -TARGET_EFAULT; |
5007 | } |
5008 | } |
5009 | |
5010 | return ret; |
5011 | } |
5012 | |
5013 | #ifdef TIOCGPTPEER |
5014 | static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp, |
5015 | int fd, int cmd, abi_long arg) |
5016 | { |
5017 | int flags = target_to_host_bitmask(arg, fcntl_flags_tbl); |
5018 | return get_errno(safe_ioctl(fd, ie->host_cmd, flags)); |
5019 | } |
5020 | #endif |
5021 | |
5022 | static IOCTLEntry ioctl_entries[] = { |
5023 | #define IOCTL(cmd, access, ...) \ |
5024 | { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } }, |
5025 | #define IOCTL_SPECIAL(cmd, access, dofn, ...) \ |
5026 | { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } }, |
5027 | #define IOCTL_IGNORE(cmd) \ |
5028 | { TARGET_ ## cmd, 0, #cmd }, |
5029 | #include "ioctls.h" |
5030 | { 0, 0, }, |
5031 | }; |
5032 | |
5033 | /* ??? Implement proper locking for ioctls. */ |
5034 | /* do_ioctl() Must return target values and target errnos. */ |
5035 | static abi_long do_ioctl(int fd, int cmd, abi_long arg) |
5036 | { |
5037 | const IOCTLEntry *ie; |
5038 | const argtype *arg_type; |
5039 | abi_long ret; |
5040 | uint8_t buf_temp[MAX_STRUCT_SIZE]; |
5041 | int target_size; |
5042 | void *argptr; |
5043 | |
5044 | ie = ioctl_entries; |
5045 | for(;;) { |
5046 | if (ie->target_cmd == 0) { |
5047 | gemu_log("Unsupported ioctl: cmd=0x%04lx\n" , (long)cmd); |
5048 | return -TARGET_ENOSYS; |
5049 | } |
5050 | if (ie->target_cmd == cmd) |
5051 | break; |
5052 | ie++; |
5053 | } |
5054 | arg_type = ie->arg_type; |
5055 | if (ie->do_ioctl) { |
5056 | return ie->do_ioctl(ie, buf_temp, fd, cmd, arg); |
5057 | } else if (!ie->host_cmd) { |
5058 | /* Some architectures define BSD ioctls in their headers |
5059 | that are not implemented in Linux. */ |
5060 | return -TARGET_ENOSYS; |
5061 | } |
5062 | |
5063 | switch(arg_type[0]) { |
5064 | case TYPE_NULL: |
5065 | /* no argument */ |
5066 | ret = get_errno(safe_ioctl(fd, ie->host_cmd)); |
5067 | break; |
5068 | case TYPE_PTRVOID: |
5069 | case TYPE_INT: |
5070 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg)); |
5071 | break; |
5072 | case TYPE_PTR: |
5073 | arg_type++; |
5074 | target_size = thunk_type_size(arg_type, 0); |
5075 | switch(ie->access) { |
5076 | case IOC_R: |
5077 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
5078 | if (!is_error(ret)) { |
5079 | argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
5080 | if (!argptr) |
5081 | return -TARGET_EFAULT; |
5082 | thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
5083 | unlock_user(argptr, arg, target_size); |
5084 | } |
5085 | break; |
5086 | case IOC_W: |
5087 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
5088 | if (!argptr) |
5089 | return -TARGET_EFAULT; |
5090 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
5091 | unlock_user(argptr, arg, 0); |
5092 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
5093 | break; |
5094 | default: |
5095 | case IOC_RW: |
5096 | argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
5097 | if (!argptr) |
5098 | return -TARGET_EFAULT; |
5099 | thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
5100 | unlock_user(argptr, arg, 0); |
5101 | ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
5102 | if (!is_error(ret)) { |
5103 | argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
5104 | if (!argptr) |
5105 | return -TARGET_EFAULT; |
5106 | thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
5107 | unlock_user(argptr, arg, target_size); |
5108 | } |
5109 | break; |
5110 | } |
5111 | break; |
5112 | default: |
5113 | gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n" , |
5114 | (long)cmd, arg_type[0]); |
5115 | ret = -TARGET_ENOSYS; |
5116 | break; |
5117 | } |
5118 | return ret; |
5119 | } |
5120 | |
5121 | static const bitmask_transtbl iflag_tbl[] = { |
5122 | { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, |
5123 | { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, |
5124 | { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, |
5125 | { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, |
5126 | { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, |
5127 | { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, |
5128 | { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, |
5129 | { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, |
5130 | { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, |
5131 | { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, |
5132 | { TARGET_IXON, TARGET_IXON, IXON, IXON }, |
5133 | { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, |
5134 | { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, |
5135 | { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, |
5136 | { 0, 0, 0, 0 } |
5137 | }; |
5138 | |
5139 | static const bitmask_transtbl oflag_tbl[] = { |
5140 | { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, |
5141 | { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, |
5142 | { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, |
5143 | { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, |
5144 | { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, |
5145 | { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, |
5146 | { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, |
5147 | { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, |
5148 | { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, |
5149 | { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, |
5150 | { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, |
5151 | { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, |
5152 | { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, |
5153 | { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, |
5154 | { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, |
5155 | { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, |
5156 | { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, |
5157 | { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, |
5158 | { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, |
5159 | { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, |
5160 | { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, |
5161 | { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, |
5162 | { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, |
5163 | { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, |
5164 | { 0, 0, 0, 0 } |
5165 | }; |
5166 | |
5167 | static const bitmask_transtbl cflag_tbl[] = { |
5168 | { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, |
5169 | { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, |
5170 | { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, |
5171 | { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, |
5172 | { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, |
5173 | { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, |
5174 | { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, |
5175 | { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, |
5176 | { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, |
5177 | { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, |
5178 | { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, |
5179 | { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, |
5180 | { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, |
5181 | { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, |
5182 | { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, |
5183 | { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, |
5184 | { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, |
5185 | { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, |
5186 | { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, |
5187 | { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, |
5188 | { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, |
5189 | { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, |
5190 | { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, |
5191 | { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, |
5192 | { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, |
5193 | { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, |
5194 | { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, |
5195 | { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, |
5196 | { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, |
5197 | { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, |
5198 | { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, |
5199 | { 0, 0, 0, 0 } |
5200 | }; |
5201 | |
5202 | static const bitmask_transtbl lflag_tbl[] = { |
5203 | { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, |
5204 | { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, |
5205 | { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, |
5206 | { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, |
5207 | { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, |
5208 | { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, |
5209 | { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, |
5210 | { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, |
5211 | { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, |
5212 | { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, |
5213 | { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, |
5214 | { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, |
5215 | { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, |
5216 | { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, |
5217 | { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, |
5218 | { 0, 0, 0, 0 } |
5219 | }; |
5220 | |
5221 | static void target_to_host_termios (void *dst, const void *src) |
5222 | { |
5223 | struct host_termios *host = dst; |
5224 | const struct target_termios *target = src; |
5225 | |
5226 | host->c_iflag = |
5227 | target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); |
5228 | host->c_oflag = |
5229 | target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); |
5230 | host->c_cflag = |
5231 | target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); |
5232 | host->c_lflag = |
5233 | target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); |
5234 | host->c_line = target->c_line; |
5235 | |
5236 | memset(host->c_cc, 0, sizeof(host->c_cc)); |
5237 | host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; |
5238 | host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; |
5239 | host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; |
5240 | host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; |
5241 | host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; |
5242 | host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; |
5243 | host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; |
5244 | host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; |
5245 | host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; |
5246 | host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; |
5247 | host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; |
5248 | host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; |
5249 | host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; |
5250 | host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; |
5251 | host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; |
5252 | host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; |
5253 | host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; |
5254 | } |
5255 | |
5256 | static void host_to_target_termios (void *dst, const void *src) |
5257 | { |
5258 | struct target_termios *target = dst; |
5259 | const struct host_termios *host = src; |
5260 | |
5261 | target->c_iflag = |
5262 | tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); |
5263 | target->c_oflag = |
5264 | tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); |
5265 | target->c_cflag = |
5266 | tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); |
5267 | target->c_lflag = |
5268 | tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); |
5269 | target->c_line = host->c_line; |
5270 | |
5271 | memset(target->c_cc, 0, sizeof(target->c_cc)); |
5272 | target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; |
5273 | target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; |
5274 | target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; |
5275 | target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; |
5276 | target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; |
5277 | target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; |
5278 | target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; |
5279 | target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; |
5280 | target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; |
5281 | target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; |
5282 | target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; |
5283 | target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; |
5284 | target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; |
5285 | target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; |
5286 | target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; |
5287 | target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; |
5288 | target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; |
5289 | } |
5290 | |
5291 | static const StructEntry struct_termios_def = { |
5292 | .convert = { host_to_target_termios, target_to_host_termios }, |
5293 | .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, |
5294 | .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, |
5295 | }; |
5296 | |
5297 | static bitmask_transtbl mmap_flags_tbl[] = { |
5298 | { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, |
5299 | { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, |
5300 | { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, |
5301 | { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, |
5302 | MAP_ANONYMOUS, MAP_ANONYMOUS }, |
5303 | { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, |
5304 | MAP_GROWSDOWN, MAP_GROWSDOWN }, |
5305 | { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, |
5306 | MAP_DENYWRITE, MAP_DENYWRITE }, |
5307 | { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, |
5308 | MAP_EXECUTABLE, MAP_EXECUTABLE }, |
5309 | { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, |
5310 | { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, |
5311 | MAP_NORESERVE, MAP_NORESERVE }, |
5312 | { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB }, |
5313 | /* MAP_STACK had been ignored by the kernel for quite some time. |
5314 | Recognize it for the target insofar as we do not want to pass |
5315 | it through to the host. */ |
5316 | { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 }, |
5317 | { 0, 0, 0, 0 } |
5318 | }; |
5319 | |
5320 | #if defined(TARGET_I386) |
5321 | |
5322 | /* NOTE: there is really one LDT for all the threads */ |
5323 | static uint8_t *ldt_table; |
5324 | |
5325 | static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) |
5326 | { |
5327 | int size; |
5328 | void *p; |
5329 | |
5330 | if (!ldt_table) |
5331 | return 0; |
5332 | size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; |
5333 | if (size > bytecount) |
5334 | size = bytecount; |
5335 | p = lock_user(VERIFY_WRITE, ptr, size, 0); |
5336 | if (!p) |
5337 | return -TARGET_EFAULT; |
5338 | /* ??? Should this by byteswapped? */ |
5339 | memcpy(p, ldt_table, size); |
5340 | unlock_user(p, ptr, size); |
5341 | return size; |
5342 | } |
5343 | |
5344 | /* XXX: add locking support */ |
5345 | static abi_long write_ldt(CPUX86State *env, |
5346 | abi_ulong ptr, unsigned long bytecount, int oldmode) |
5347 | { |
5348 | struct target_modify_ldt_ldt_s ldt_info; |
5349 | struct target_modify_ldt_ldt_s *target_ldt_info; |
5350 | int seg_32bit, contents, read_exec_only, limit_in_pages; |
5351 | int seg_not_present, useable, lm; |
5352 | uint32_t *lp, entry_1, entry_2; |
5353 | |
5354 | if (bytecount != sizeof(ldt_info)) |
5355 | return -TARGET_EINVAL; |
5356 | if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) |
5357 | return -TARGET_EFAULT; |
5358 | ldt_info.entry_number = tswap32(target_ldt_info->entry_number); |
5359 | ldt_info.base_addr = tswapal(target_ldt_info->base_addr); |
5360 | ldt_info.limit = tswap32(target_ldt_info->limit); |
5361 | ldt_info.flags = tswap32(target_ldt_info->flags); |
5362 | unlock_user_struct(target_ldt_info, ptr, 0); |
5363 | |
5364 | if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) |
5365 | return -TARGET_EINVAL; |
5366 | seg_32bit = ldt_info.flags & 1; |
5367 | contents = (ldt_info.flags >> 1) & 3; |
5368 | read_exec_only = (ldt_info.flags >> 3) & 1; |
5369 | limit_in_pages = (ldt_info.flags >> 4) & 1; |
5370 | seg_not_present = (ldt_info.flags >> 5) & 1; |
5371 | useable = (ldt_info.flags >> 6) & 1; |
5372 | #ifdef TARGET_ABI32 |
5373 | lm = 0; |
5374 | #else |
5375 | lm = (ldt_info.flags >> 7) & 1; |
5376 | #endif |
5377 | if (contents == 3) { |
5378 | if (oldmode) |
5379 | return -TARGET_EINVAL; |
5380 | if (seg_not_present == 0) |
5381 | return -TARGET_EINVAL; |
5382 | } |
5383 | /* allocate the LDT */ |
5384 | if (!ldt_table) { |
5385 | env->ldt.base = target_mmap(0, |
5386 | TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE, |
5387 | PROT_READ|PROT_WRITE, |
5388 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
5389 | if (env->ldt.base == -1) |
5390 | return -TARGET_ENOMEM; |
5391 | memset(g2h(env->ldt.base), 0, |
5392 | TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); |
5393 | env->ldt.limit = 0xffff; |
5394 | ldt_table = g2h(env->ldt.base); |
5395 | } |
5396 | |
5397 | /* NOTE: same code as Linux kernel */ |
5398 | /* Allow LDTs to be cleared by the user. */ |
5399 | if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { |
5400 | if (oldmode || |
5401 | (contents == 0 && |
5402 | read_exec_only == 1 && |
5403 | seg_32bit == 0 && |
5404 | limit_in_pages == 0 && |
5405 | seg_not_present == 1 && |
5406 | useable == 0 )) { |
5407 | entry_1 = 0; |
5408 | entry_2 = 0; |
5409 | goto install; |
5410 | } |
5411 | } |
5412 | |
5413 | entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | |
5414 | (ldt_info.limit & 0x0ffff); |
5415 | entry_2 = (ldt_info.base_addr & 0xff000000) | |
5416 | ((ldt_info.base_addr & 0x00ff0000) >> 16) | |
5417 | (ldt_info.limit & 0xf0000) | |
5418 | ((read_exec_only ^ 1) << 9) | |
5419 | (contents << 10) | |
5420 | ((seg_not_present ^ 1) << 15) | |
5421 | (seg_32bit << 22) | |
5422 | (limit_in_pages << 23) | |
5423 | (lm << 21) | |
5424 | 0x7000; |
5425 | if (!oldmode) |
5426 | entry_2 |= (useable << 20); |
5427 | |
5428 | /* Install the new entry ... */ |
5429 | install: |
5430 | lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); |
5431 | lp[0] = tswap32(entry_1); |
5432 | lp[1] = tswap32(entry_2); |
5433 | return 0; |
5434 | } |
5435 | |
5436 | /* specific and weird i386 syscalls */ |
5437 | static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, |
5438 | unsigned long bytecount) |
5439 | { |
5440 | abi_long ret; |
5441 | |
5442 | switch (func) { |
5443 | case 0: |
5444 | ret = read_ldt(ptr, bytecount); |
5445 | break; |
5446 | case 1: |
5447 | ret = write_ldt(env, ptr, bytecount, 1); |
5448 | break; |
5449 | case 0x11: |
5450 | ret = write_ldt(env, ptr, bytecount, 0); |
5451 | break; |
5452 | default: |
5453 | ret = -TARGET_ENOSYS; |
5454 | break; |
5455 | } |
5456 | return ret; |
5457 | } |
5458 | |
5459 | #if defined(TARGET_I386) && defined(TARGET_ABI32) |
5460 | abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) |
5461 | { |
5462 | uint64_t *gdt_table = g2h(env->gdt.base); |
5463 | struct target_modify_ldt_ldt_s ldt_info; |
5464 | struct target_modify_ldt_ldt_s *target_ldt_info; |
5465 | int seg_32bit, contents, read_exec_only, limit_in_pages; |
5466 | int seg_not_present, useable, lm; |
5467 | uint32_t *lp, entry_1, entry_2; |
5468 | int i; |
5469 | |
5470 | lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); |
5471 | if (!target_ldt_info) |
5472 | return -TARGET_EFAULT; |
5473 | ldt_info.entry_number = tswap32(target_ldt_info->entry_number); |
5474 | ldt_info.base_addr = tswapal(target_ldt_info->base_addr); |
5475 | ldt_info.limit = tswap32(target_ldt_info->limit); |
5476 | ldt_info.flags = tswap32(target_ldt_info->flags); |
5477 | if (ldt_info.entry_number == -1) { |
5478 | for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { |
5479 | if (gdt_table[i] == 0) { |
5480 | ldt_info.entry_number = i; |
5481 | target_ldt_info->entry_number = tswap32(i); |
5482 | break; |
5483 | } |
5484 | } |
5485 | } |
5486 | unlock_user_struct(target_ldt_info, ptr, 1); |
5487 | |
5488 | if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || |
5489 | ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) |
5490 | return -TARGET_EINVAL; |
5491 | seg_32bit = ldt_info.flags & 1; |
5492 | contents = (ldt_info.flags >> 1) & 3; |
5493 | read_exec_only = (ldt_info.flags >> 3) & 1; |
5494 | limit_in_pages = (ldt_info.flags >> 4) & 1; |
5495 | seg_not_present = (ldt_info.flags >> 5) & 1; |
5496 | useable = (ldt_info.flags >> 6) & 1; |
5497 | #ifdef TARGET_ABI32 |
5498 | lm = 0; |
5499 | #else |
5500 | lm = (ldt_info.flags >> 7) & 1; |
5501 | #endif |
5502 | |
5503 | if (contents == 3) { |
5504 | if (seg_not_present == 0) |
5505 | return -TARGET_EINVAL; |
5506 | } |
5507 | |
5508 | /* NOTE: same code as Linux kernel */ |
5509 | /* Allow LDTs to be cleared by the user. */ |
5510 | if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { |
5511 | if ((contents == 0 && |
5512 | read_exec_only == 1 && |
5513 | seg_32bit == 0 && |
5514 | limit_in_pages == 0 && |
5515 | seg_not_present == 1 && |
5516 | useable == 0 )) { |
5517 | entry_1 = 0; |
5518 | entry_2 = 0; |
5519 | goto install; |
5520 | } |
5521 | } |
5522 | |
5523 | entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | |
5524 | (ldt_info.limit & 0x0ffff); |
5525 | entry_2 = (ldt_info.base_addr & 0xff000000) | |
5526 | ((ldt_info.base_addr & 0x00ff0000) >> 16) | |
5527 | (ldt_info.limit & 0xf0000) | |
5528 | ((read_exec_only ^ 1) << 9) | |
5529 | (contents << 10) | |
5530 | ((seg_not_present ^ 1) << 15) | |
5531 | (seg_32bit << 22) | |
5532 | (limit_in_pages << 23) | |
5533 | (useable << 20) | |
5534 | (lm << 21) | |
5535 | 0x7000; |
5536 | |
5537 | /* Install the new entry ... */ |
5538 | install: |
5539 | lp = (uint32_t *)(gdt_table + ldt_info.entry_number); |
5540 | lp[0] = tswap32(entry_1); |
5541 | lp[1] = tswap32(entry_2); |
5542 | return 0; |
5543 | } |
5544 | |
5545 | static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) |
5546 | { |
5547 | struct target_modify_ldt_ldt_s *target_ldt_info; |
5548 | uint64_t *gdt_table = g2h(env->gdt.base); |
5549 | uint32_t base_addr, limit, flags; |
5550 | int seg_32bit, contents, read_exec_only, limit_in_pages, idx; |
5551 | int seg_not_present, useable, lm; |
5552 | uint32_t *lp, entry_1, entry_2; |
5553 | |
5554 | lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); |
5555 | if (!target_ldt_info) |
5556 | return -TARGET_EFAULT; |
5557 | idx = tswap32(target_ldt_info->entry_number); |
5558 | if (idx < TARGET_GDT_ENTRY_TLS_MIN || |
5559 | idx > TARGET_GDT_ENTRY_TLS_MAX) { |
5560 | unlock_user_struct(target_ldt_info, ptr, 1); |
5561 | return -TARGET_EINVAL; |
5562 | } |
5563 | lp = (uint32_t *)(gdt_table + idx); |
5564 | entry_1 = tswap32(lp[0]); |
5565 | entry_2 = tswap32(lp[1]); |
5566 | |
5567 | read_exec_only = ((entry_2 >> 9) & 1) ^ 1; |
5568 | contents = (entry_2 >> 10) & 3; |
5569 | seg_not_present = ((entry_2 >> 15) & 1) ^ 1; |
5570 | seg_32bit = (entry_2 >> 22) & 1; |
5571 | limit_in_pages = (entry_2 >> 23) & 1; |
5572 | useable = (entry_2 >> 20) & 1; |
5573 | #ifdef TARGET_ABI32 |
5574 | lm = 0; |
5575 | #else |
5576 | lm = (entry_2 >> 21) & 1; |
5577 | #endif |
5578 | flags = (seg_32bit << 0) | (contents << 1) | |
5579 | (read_exec_only << 3) | (limit_in_pages << 4) | |
5580 | (seg_not_present << 5) | (useable << 6) | (lm << 7); |
5581 | limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); |
5582 | base_addr = (entry_1 >> 16) | |
5583 | (entry_2 & 0xff000000) | |
5584 | ((entry_2 & 0xff) << 16); |
5585 | target_ldt_info->base_addr = tswapal(base_addr); |
5586 | target_ldt_info->limit = tswap32(limit); |
5587 | target_ldt_info->flags = tswap32(flags); |
5588 | unlock_user_struct(target_ldt_info, ptr, 1); |
5589 | return 0; |
5590 | } |
5591 | #endif /* TARGET_I386 && TARGET_ABI32 */ |
5592 | |
5593 | #ifndef TARGET_ABI32 |
5594 | abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) |
5595 | { |
5596 | abi_long ret = 0; |
5597 | abi_ulong val; |
5598 | int idx; |
5599 | |
5600 | switch(code) { |
5601 | case TARGET_ARCH_SET_GS: |
5602 | case TARGET_ARCH_SET_FS: |
5603 | if (code == TARGET_ARCH_SET_GS) |
5604 | idx = R_GS; |
5605 | else |
5606 | idx = R_FS; |
5607 | cpu_x86_load_seg(env, idx, 0); |
5608 | env->segs[idx].base = addr; |
5609 | break; |
5610 | case TARGET_ARCH_GET_GS: |
5611 | case TARGET_ARCH_GET_FS: |
5612 | if (code == TARGET_ARCH_GET_GS) |
5613 | idx = R_GS; |
5614 | else |
5615 | idx = R_FS; |
5616 | val = env->segs[idx].base; |
5617 | if (put_user(val, addr, abi_ulong)) |
5618 | ret = -TARGET_EFAULT; |
5619 | break; |
5620 | default: |
5621 | ret = -TARGET_EINVAL; |
5622 | break; |
5623 | } |
5624 | return ret; |
5625 | } |
5626 | #endif |
5627 | |
5628 | #endif /* defined(TARGET_I386) */ |
5629 | |
5630 | #define NEW_STACK_SIZE 0x40000 |
5631 | |
5632 | |
5633 | static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER; |
5634 | typedef struct { |
5635 | CPUArchState *env; |
5636 | pthread_mutex_t mutex; |
5637 | pthread_cond_t cond; |
5638 | pthread_t thread; |
5639 | uint32_t tid; |
5640 | abi_ulong child_tidptr; |
5641 | abi_ulong parent_tidptr; |
5642 | sigset_t sigmask; |
5643 | } new_thread_info; |
5644 | |
5645 | static void *clone_func(void *arg) |
5646 | { |
5647 | new_thread_info *info = arg; |
5648 | CPUArchState *env; |
5649 | CPUState *cpu; |
5650 | TaskState *ts; |
5651 | |
5652 | rcu_register_thread(); |
5653 | tcg_register_thread(); |
5654 | env = info->env; |
5655 | cpu = env_cpu(env); |
5656 | thread_cpu = cpu; |
5657 | ts = (TaskState *)cpu->opaque; |
5658 | info->tid = sys_gettid(); |
5659 | task_settid(ts); |
5660 | if (info->child_tidptr) |
5661 | put_user_u32(info->tid, info->child_tidptr); |
5662 | if (info->parent_tidptr) |
5663 | put_user_u32(info->tid, info->parent_tidptr); |
5664 | qemu_guest_random_seed_thread_part2(cpu->random_seed); |
5665 | /* Enable signals. */ |
5666 | sigprocmask(SIG_SETMASK, &info->sigmask, NULL); |
5667 | /* Signal to the parent that we're ready. */ |
5668 | pthread_mutex_lock(&info->mutex); |
5669 | pthread_cond_broadcast(&info->cond); |
5670 | pthread_mutex_unlock(&info->mutex); |
5671 | /* Wait until the parent has finished initializing the tls state. */ |
5672 | pthread_mutex_lock(&clone_lock); |
5673 | pthread_mutex_unlock(&clone_lock); |
5674 | cpu_loop(env); |
5675 | /* never exits */ |
5676 | return NULL; |
5677 | } |
5678 | |
5679 | /* do_fork() Must return host values and target errnos (unlike most |
5680 | do_*() functions). */ |
5681 | static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, |
5682 | abi_ulong parent_tidptr, target_ulong newtls, |
5683 | abi_ulong child_tidptr) |
5684 | { |
5685 | CPUState *cpu = env_cpu(env); |
5686 | int ret; |
5687 | TaskState *ts; |
5688 | CPUState *new_cpu; |
5689 | CPUArchState *new_env; |
5690 | sigset_t sigmask; |
5691 | |
5692 | flags &= ~CLONE_IGNORED_FLAGS; |
5693 | |
5694 | /* Emulate vfork() with fork() */ |
5695 | if (flags & CLONE_VFORK) |
5696 | flags &= ~(CLONE_VFORK | CLONE_VM); |
5697 | |
5698 | if (flags & CLONE_VM) { |
5699 | TaskState *parent_ts = (TaskState *)cpu->opaque; |
5700 | new_thread_info info; |
5701 | pthread_attr_t attr; |
5702 | |
5703 | if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) || |
5704 | (flags & CLONE_INVALID_THREAD_FLAGS)) { |
5705 | return -TARGET_EINVAL; |
5706 | } |
5707 | |
5708 | ts = g_new0(TaskState, 1); |
5709 | init_task_state(ts); |
5710 | |
5711 | /* Grab a mutex so that thread setup appears atomic. */ |
5712 | pthread_mutex_lock(&clone_lock); |
5713 | |
5714 | /* we create a new CPU instance. */ |
5715 | new_env = cpu_copy(env); |
5716 | /* Init regs that differ from the parent. */ |
5717 | cpu_clone_regs(new_env, newsp); |
5718 | new_cpu = env_cpu(new_env); |
5719 | new_cpu->opaque = ts; |
5720 | ts->bprm = parent_ts->bprm; |
5721 | ts->info = parent_ts->info; |
5722 | ts->signal_mask = parent_ts->signal_mask; |
5723 | |
5724 | if (flags & CLONE_CHILD_CLEARTID) { |
5725 | ts->child_tidptr = child_tidptr; |
5726 | } |
5727 | |
5728 | if (flags & CLONE_SETTLS) { |
5729 | cpu_set_tls (new_env, newtls); |
5730 | } |
5731 | |
5732 | memset(&info, 0, sizeof(info)); |
5733 | pthread_mutex_init(&info.mutex, NULL); |
5734 | pthread_mutex_lock(&info.mutex); |
5735 | pthread_cond_init(&info.cond, NULL); |
5736 | info.env = new_env; |
5737 | if (flags & CLONE_CHILD_SETTID) { |
5738 | info.child_tidptr = child_tidptr; |
5739 | } |
5740 | if (flags & CLONE_PARENT_SETTID) { |
5741 | info.parent_tidptr = parent_tidptr; |
5742 | } |
5743 | |
5744 | ret = pthread_attr_init(&attr); |
5745 | ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE); |
5746 | ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
5747 | /* It is not safe to deliver signals until the child has finished |
5748 | initializing, so temporarily block all signals. */ |
5749 | sigfillset(&sigmask); |
5750 | sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); |
5751 | cpu->random_seed = qemu_guest_random_seed_thread_part1(); |
5752 | |
5753 | /* If this is our first additional thread, we need to ensure we |
5754 | * generate code for parallel execution and flush old translations. |
5755 | */ |
5756 | if (!parallel_cpus) { |
5757 | parallel_cpus = true; |
5758 | tb_flush(cpu); |
5759 | } |
5760 | |
5761 | ret = pthread_create(&info.thread, &attr, clone_func, &info); |
5762 | /* TODO: Free new CPU state if thread creation failed. */ |
5763 | |
5764 | sigprocmask(SIG_SETMASK, &info.sigmask, NULL); |
5765 | pthread_attr_destroy(&attr); |
5766 | if (ret == 0) { |
5767 | /* Wait for the child to initialize. */ |
5768 | pthread_cond_wait(&info.cond, &info.mutex); |
5769 | ret = info.tid; |
5770 | } else { |
5771 | ret = -1; |
5772 | } |
5773 | pthread_mutex_unlock(&info.mutex); |
5774 | pthread_cond_destroy(&info.cond); |
5775 | pthread_mutex_destroy(&info.mutex); |
5776 | pthread_mutex_unlock(&clone_lock); |
5777 | } else { |
5778 | /* if no CLONE_VM, we consider it is a fork */ |
5779 | if (flags & CLONE_INVALID_FORK_FLAGS) { |
5780 | return -TARGET_EINVAL; |
5781 | } |
5782 | |
5783 | /* We can't support custom termination signals */ |
5784 | if ((flags & CSIGNAL) != TARGET_SIGCHLD) { |
5785 | return -TARGET_EINVAL; |
5786 | } |
5787 | |
5788 | if (block_signals()) { |
5789 | return -TARGET_ERESTARTSYS; |
5790 | } |
5791 | |
5792 | fork_start(); |
5793 | ret = fork(); |
5794 | if (ret == 0) { |
5795 | /* Child Process. */ |
5796 | cpu_clone_regs(env, newsp); |
5797 | fork_end(1); |
5798 | /* There is a race condition here. The parent process could |
5799 | theoretically read the TID in the child process before the child |
5800 | tid is set. This would require using either ptrace |
5801 | (not implemented) or having *_tidptr to point at a shared memory |
5802 | mapping. We can't repeat the spinlock hack used above because |
5803 | the child process gets its own copy of the lock. */ |
5804 | if (flags & CLONE_CHILD_SETTID) |
5805 | put_user_u32(sys_gettid(), child_tidptr); |
5806 | if (flags & CLONE_PARENT_SETTID) |
5807 | put_user_u32(sys_gettid(), parent_tidptr); |
5808 | ts = (TaskState *)cpu->opaque; |
5809 | if (flags & CLONE_SETTLS) |
5810 | cpu_set_tls (env, newtls); |
5811 | if (flags & CLONE_CHILD_CLEARTID) |
5812 | ts->child_tidptr = child_tidptr; |
5813 | } else { |
5814 | fork_end(0); |
5815 | } |
5816 | } |
5817 | return ret; |
5818 | } |
5819 | |
5820 | /* warning : doesn't handle linux specific flags... */ |
5821 | static int target_to_host_fcntl_cmd(int cmd) |
5822 | { |
5823 | int ret; |
5824 | |
5825 | switch(cmd) { |
5826 | case TARGET_F_DUPFD: |
5827 | case TARGET_F_GETFD: |
5828 | case TARGET_F_SETFD: |
5829 | case TARGET_F_GETFL: |
5830 | case TARGET_F_SETFL: |
5831 | ret = cmd; |
5832 | break; |
5833 | case TARGET_F_GETLK: |
5834 | ret = F_GETLK64; |
5835 | break; |
5836 | case TARGET_F_SETLK: |
5837 | ret = F_SETLK64; |
5838 | break; |
5839 | case TARGET_F_SETLKW: |
5840 | ret = F_SETLKW64; |
5841 | break; |
5842 | case TARGET_F_GETOWN: |
5843 | ret = F_GETOWN; |
5844 | break; |
5845 | case TARGET_F_SETOWN: |
5846 | ret = F_SETOWN; |
5847 | break; |
5848 | case TARGET_F_GETSIG: |
5849 | ret = F_GETSIG; |
5850 | break; |
5851 | case TARGET_F_SETSIG: |
5852 | ret = F_SETSIG; |
5853 | break; |
5854 | #if TARGET_ABI_BITS == 32 |
5855 | case TARGET_F_GETLK64: |
5856 | ret = F_GETLK64; |
5857 | break; |
5858 | case TARGET_F_SETLK64: |
5859 | ret = F_SETLK64; |
5860 | break; |
5861 | case TARGET_F_SETLKW64: |
5862 | ret = F_SETLKW64; |
5863 | break; |
5864 | #endif |
5865 | case TARGET_F_SETLEASE: |
5866 | ret = F_SETLEASE; |
5867 | break; |
5868 | case TARGET_F_GETLEASE: |
5869 | ret = F_GETLEASE; |
5870 | break; |
5871 | #ifdef F_DUPFD_CLOEXEC |
5872 | case TARGET_F_DUPFD_CLOEXEC: |
5873 | ret = F_DUPFD_CLOEXEC; |
5874 | break; |
5875 | #endif |
5876 | case TARGET_F_NOTIFY: |
5877 | ret = F_NOTIFY; |
5878 | break; |
5879 | #ifdef F_GETOWN_EX |
5880 | case TARGET_F_GETOWN_EX: |
5881 | ret = F_GETOWN_EX; |
5882 | break; |
5883 | #endif |
5884 | #ifdef F_SETOWN_EX |
5885 | case TARGET_F_SETOWN_EX: |
5886 | ret = F_SETOWN_EX; |
5887 | break; |
5888 | #endif |
5889 | #ifdef F_SETPIPE_SZ |
5890 | case TARGET_F_SETPIPE_SZ: |
5891 | ret = F_SETPIPE_SZ; |
5892 | break; |
5893 | case TARGET_F_GETPIPE_SZ: |
5894 | ret = F_GETPIPE_SZ; |
5895 | break; |
5896 | #endif |
5897 | default: |
5898 | ret = -TARGET_EINVAL; |
5899 | break; |
5900 | } |
5901 | |
5902 | #if defined(__powerpc64__) |
5903 | /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and |
5904 | * is not supported by kernel. The glibc fcntl call actually adjusts |
5905 | * them to 5, 6 and 7 before making the syscall(). Since we make the |
5906 | * syscall directly, adjust to what is supported by the kernel. |
5907 | */ |
5908 | if (ret >= F_GETLK64 && ret <= F_SETLKW64) { |
5909 | ret -= F_GETLK64 - 5; |
5910 | } |
5911 | #endif |
5912 | |
5913 | return ret; |
5914 | } |
5915 | |
5916 | #define FLOCK_TRANSTBL \ |
5917 | switch (type) { \ |
5918 | TRANSTBL_CONVERT(F_RDLCK); \ |
5919 | TRANSTBL_CONVERT(F_WRLCK); \ |
5920 | TRANSTBL_CONVERT(F_UNLCK); \ |
5921 | TRANSTBL_CONVERT(F_EXLCK); \ |
5922 | TRANSTBL_CONVERT(F_SHLCK); \ |
5923 | } |
5924 | |
5925 | static int target_to_host_flock(int type) |
5926 | { |
5927 | #define TRANSTBL_CONVERT(a) case TARGET_##a: return a |
5928 | FLOCK_TRANSTBL |
5929 | #undef TRANSTBL_CONVERT |
5930 | return -TARGET_EINVAL; |
5931 | } |
5932 | |
5933 | static int host_to_target_flock(int type) |
5934 | { |
5935 | #define TRANSTBL_CONVERT(a) case a: return TARGET_##a |
5936 | FLOCK_TRANSTBL |
5937 | #undef TRANSTBL_CONVERT |
5938 | /* if we don't know how to convert the value coming |
5939 | * from the host we copy to the target field as-is |
5940 | */ |
5941 | return type; |
5942 | } |
5943 | |
5944 | static inline abi_long copy_from_user_flock(struct flock64 *fl, |
5945 | abi_ulong target_flock_addr) |
5946 | { |
5947 | struct target_flock *target_fl; |
5948 | int l_type; |
5949 | |
5950 | if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
5951 | return -TARGET_EFAULT; |
5952 | } |
5953 | |
5954 | __get_user(l_type, &target_fl->l_type); |
5955 | l_type = target_to_host_flock(l_type); |
5956 | if (l_type < 0) { |
5957 | return l_type; |
5958 | } |
5959 | fl->l_type = l_type; |
5960 | __get_user(fl->l_whence, &target_fl->l_whence); |
5961 | __get_user(fl->l_start, &target_fl->l_start); |
5962 | __get_user(fl->l_len, &target_fl->l_len); |
5963 | __get_user(fl->l_pid, &target_fl->l_pid); |
5964 | unlock_user_struct(target_fl, target_flock_addr, 0); |
5965 | return 0; |
5966 | } |
5967 | |
5968 | static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr, |
5969 | const struct flock64 *fl) |
5970 | { |
5971 | struct target_flock *target_fl; |
5972 | short l_type; |
5973 | |
5974 | if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
5975 | return -TARGET_EFAULT; |
5976 | } |
5977 | |
5978 | l_type = host_to_target_flock(fl->l_type); |
5979 | __put_user(l_type, &target_fl->l_type); |
5980 | __put_user(fl->l_whence, &target_fl->l_whence); |
5981 | __put_user(fl->l_start, &target_fl->l_start); |
5982 | __put_user(fl->l_len, &target_fl->l_len); |
5983 | __put_user(fl->l_pid, &target_fl->l_pid); |
5984 | unlock_user_struct(target_fl, target_flock_addr, 1); |
5985 | return 0; |
5986 | } |
5987 | |
5988 | typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr); |
5989 | typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl); |
5990 | |
5991 | #if defined(TARGET_ARM) && TARGET_ABI_BITS == 32 |
5992 | static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl, |
5993 | abi_ulong target_flock_addr) |
5994 | { |
5995 | struct target_oabi_flock64 *target_fl; |
5996 | int l_type; |
5997 | |
5998 | if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
5999 | return -TARGET_EFAULT; |
6000 | } |
6001 | |
6002 | __get_user(l_type, &target_fl->l_type); |
6003 | l_type = target_to_host_flock(l_type); |
6004 | if (l_type < 0) { |
6005 | return l_type; |
6006 | } |
6007 | fl->l_type = l_type; |
6008 | __get_user(fl->l_whence, &target_fl->l_whence); |
6009 | __get_user(fl->l_start, &target_fl->l_start); |
6010 | __get_user(fl->l_len, &target_fl->l_len); |
6011 | __get_user(fl->l_pid, &target_fl->l_pid); |
6012 | unlock_user_struct(target_fl, target_flock_addr, 0); |
6013 | return 0; |
6014 | } |
6015 | |
6016 | static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr, |
6017 | const struct flock64 *fl) |
6018 | { |
6019 | struct target_oabi_flock64 *target_fl; |
6020 | short l_type; |
6021 | |
6022 | if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
6023 | return -TARGET_EFAULT; |
6024 | } |
6025 | |
6026 | l_type = host_to_target_flock(fl->l_type); |
6027 | __put_user(l_type, &target_fl->l_type); |
6028 | __put_user(fl->l_whence, &target_fl->l_whence); |
6029 | __put_user(fl->l_start, &target_fl->l_start); |
6030 | __put_user(fl->l_len, &target_fl->l_len); |
6031 | __put_user(fl->l_pid, &target_fl->l_pid); |
6032 | unlock_user_struct(target_fl, target_flock_addr, 1); |
6033 | return 0; |
6034 | } |
6035 | #endif |
6036 | |
6037 | static inline abi_long copy_from_user_flock64(struct flock64 *fl, |
6038 | abi_ulong target_flock_addr) |
6039 | { |
6040 | struct target_flock64 *target_fl; |
6041 | int l_type; |
6042 | |
6043 | if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
6044 | return -TARGET_EFAULT; |
6045 | } |
6046 | |
6047 | __get_user(l_type, &target_fl->l_type); |
6048 | l_type = target_to_host_flock(l_type); |
6049 | if (l_type < 0) { |
6050 | return l_type; |
6051 | } |
6052 | fl->l_type = l_type; |
6053 | __get_user(fl->l_whence, &target_fl->l_whence); |
6054 | __get_user(fl->l_start, &target_fl->l_start); |
6055 | __get_user(fl->l_len, &target_fl->l_len); |
6056 | __get_user(fl->l_pid, &target_fl->l_pid); |
6057 | unlock_user_struct(target_fl, target_flock_addr, 0); |
6058 | return 0; |
6059 | } |
6060 | |
6061 | static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr, |
6062 | const struct flock64 *fl) |
6063 | { |
6064 | struct target_flock64 *target_fl; |
6065 | short l_type; |
6066 | |
6067 | if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
6068 | return -TARGET_EFAULT; |
6069 | } |
6070 | |
6071 | l_type = host_to_target_flock(fl->l_type); |
6072 | __put_user(l_type, &target_fl->l_type); |
6073 | __put_user(fl->l_whence, &target_fl->l_whence); |
6074 | __put_user(fl->l_start, &target_fl->l_start); |
6075 | __put_user(fl->l_len, &target_fl->l_len); |
6076 | __put_user(fl->l_pid, &target_fl->l_pid); |
6077 | unlock_user_struct(target_fl, target_flock_addr, 1); |
6078 | return 0; |
6079 | } |
6080 | |
6081 | static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) |
6082 | { |
6083 | struct flock64 fl64; |
6084 | #ifdef F_GETOWN_EX |
6085 | struct f_owner_ex fox; |
6086 | struct target_f_owner_ex *target_fox; |
6087 | #endif |
6088 | abi_long ret; |
6089 | int host_cmd = target_to_host_fcntl_cmd(cmd); |
6090 | |
6091 | if (host_cmd == -TARGET_EINVAL) |
6092 | return host_cmd; |
6093 | |
6094 | switch(cmd) { |
6095 | case TARGET_F_GETLK: |
6096 | ret = copy_from_user_flock(&fl64, arg); |
6097 | if (ret) { |
6098 | return ret; |
6099 | } |
6100 | ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
6101 | if (ret == 0) { |
6102 | ret = copy_to_user_flock(arg, &fl64); |
6103 | } |
6104 | break; |
6105 | |
6106 | case TARGET_F_SETLK: |
6107 | case TARGET_F_SETLKW: |
6108 | ret = copy_from_user_flock(&fl64, arg); |
6109 | if (ret) { |
6110 | return ret; |
6111 | } |
6112 | ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
6113 | break; |
6114 | |
6115 | case TARGET_F_GETLK64: |
6116 | ret = copy_from_user_flock64(&fl64, arg); |
6117 | if (ret) { |
6118 | return ret; |
6119 | } |
6120 | ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
6121 | if (ret == 0) { |
6122 | ret = copy_to_user_flock64(arg, &fl64); |
6123 | } |
6124 | break; |
6125 | case TARGET_F_SETLK64: |
6126 | case TARGET_F_SETLKW64: |
6127 | ret = copy_from_user_flock64(&fl64, arg); |
6128 | if (ret) { |
6129 | return ret; |
6130 | } |
6131 | ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
6132 | break; |
6133 | |
6134 | case TARGET_F_GETFL: |
6135 | ret = get_errno(safe_fcntl(fd, host_cmd, arg)); |
6136 | if (ret >= 0) { |
6137 | ret = host_to_target_bitmask(ret, fcntl_flags_tbl); |
6138 | } |
6139 | break; |
6140 | |
6141 | case TARGET_F_SETFL: |
6142 | ret = get_errno(safe_fcntl(fd, host_cmd, |
6143 | target_to_host_bitmask(arg, |
6144 | fcntl_flags_tbl))); |
6145 | break; |
6146 | |
6147 | #ifdef F_GETOWN_EX |
6148 | case TARGET_F_GETOWN_EX: |
6149 | ret = get_errno(safe_fcntl(fd, host_cmd, &fox)); |
6150 | if (ret >= 0) { |
6151 | if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0)) |
6152 | return -TARGET_EFAULT; |
6153 | target_fox->type = tswap32(fox.type); |
6154 | target_fox->pid = tswap32(fox.pid); |
6155 | unlock_user_struct(target_fox, arg, 1); |
6156 | } |
6157 | break; |
6158 | #endif |
6159 | |
6160 | #ifdef F_SETOWN_EX |
6161 | case TARGET_F_SETOWN_EX: |
6162 | if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1)) |
6163 | return -TARGET_EFAULT; |
6164 | fox.type = tswap32(target_fox->type); |
6165 | fox.pid = tswap32(target_fox->pid); |
6166 | unlock_user_struct(target_fox, arg, 0); |
6167 | ret = get_errno(safe_fcntl(fd, host_cmd, &fox)); |
6168 | break; |
6169 | #endif |
6170 | |
6171 | case TARGET_F_SETOWN: |
6172 | case TARGET_F_GETOWN: |
6173 | case TARGET_F_SETSIG: |
6174 | case TARGET_F_GETSIG: |
6175 | case TARGET_F_SETLEASE: |
6176 | case TARGET_F_GETLEASE: |
6177 | case TARGET_F_SETPIPE_SZ: |
6178 | case TARGET_F_GETPIPE_SZ: |
6179 | ret = get_errno(safe_fcntl(fd, host_cmd, arg)); |
6180 | break; |
6181 | |
6182 | default: |
6183 | ret = get_errno(safe_fcntl(fd, cmd, arg)); |
6184 | break; |
6185 | } |
6186 | return ret; |
6187 | } |
6188 | |
6189 | #ifdef USE_UID16 |
6190 | |
6191 | static inline int high2lowuid(int uid) |
6192 | { |
6193 | if (uid > 65535) |
6194 | return 65534; |
6195 | else |
6196 | return uid; |
6197 | } |
6198 | |
6199 | static inline int high2lowgid(int gid) |
6200 | { |
6201 | if (gid > 65535) |
6202 | return 65534; |
6203 | else |
6204 | return gid; |
6205 | } |
6206 | |
6207 | static inline int low2highuid(int uid) |
6208 | { |
6209 | if ((int16_t)uid == -1) |
6210 | return -1; |
6211 | else |
6212 | return uid; |
6213 | } |
6214 | |
6215 | static inline int low2highgid(int gid) |
6216 | { |
6217 | if ((int16_t)gid == -1) |
6218 | return -1; |
6219 | else |
6220 | return gid; |
6221 | } |
6222 | static inline int tswapid(int id) |
6223 | { |
6224 | return tswap16(id); |
6225 | } |
6226 | |
6227 | #define put_user_id(x, gaddr) put_user_u16(x, gaddr) |
6228 | |
6229 | #else /* !USE_UID16 */ |
6230 | static inline int high2lowuid(int uid) |
6231 | { |
6232 | return uid; |
6233 | } |
6234 | static inline int high2lowgid(int gid) |
6235 | { |
6236 | return gid; |
6237 | } |
6238 | static inline int low2highuid(int uid) |
6239 | { |
6240 | return uid; |
6241 | } |
6242 | static inline int low2highgid(int gid) |
6243 | { |
6244 | return gid; |
6245 | } |
6246 | static inline int tswapid(int id) |
6247 | { |
6248 | return tswap32(id); |
6249 | } |
6250 | |
6251 | #define put_user_id(x, gaddr) put_user_u32(x, gaddr) |
6252 | |
6253 | #endif /* USE_UID16 */ |
6254 | |
6255 | /* We must do direct syscalls for setting UID/GID, because we want to |
6256 | * implement the Linux system call semantics of "change only for this thread", |
6257 | * not the libc/POSIX semantics of "change for all threads in process". |
6258 | * (See http://ewontfix.com/17/ for more details.) |
6259 | * We use the 32-bit version of the syscalls if present; if it is not |
6260 | * then either the host architecture supports 32-bit UIDs natively with |
6261 | * the standard syscall, or the 16-bit UID is the best we can do. |
6262 | */ |
6263 | #ifdef __NR_setuid32 |
6264 | #define __NR_sys_setuid __NR_setuid32 |
6265 | #else |
6266 | #define __NR_sys_setuid __NR_setuid |
6267 | #endif |
6268 | #ifdef __NR_setgid32 |
6269 | #define __NR_sys_setgid __NR_setgid32 |
6270 | #else |
6271 | #define __NR_sys_setgid __NR_setgid |
6272 | #endif |
6273 | #ifdef __NR_setresuid32 |
6274 | #define __NR_sys_setresuid __NR_setresuid32 |
6275 | #else |
6276 | #define __NR_sys_setresuid __NR_setresuid |
6277 | #endif |
6278 | #ifdef __NR_setresgid32 |
6279 | #define __NR_sys_setresgid __NR_setresgid32 |
6280 | #else |
6281 | #define __NR_sys_setresgid __NR_setresgid |
6282 | #endif |
6283 | |
6284 | _syscall1(int, sys_setuid, uid_t, uid) |
6285 | _syscall1(int, sys_setgid, gid_t, gid) |
6286 | _syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid) |
6287 | _syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid) |
6288 | |
6289 | void syscall_init(void) |
6290 | { |
6291 | IOCTLEntry *ie; |
6292 | const argtype *arg_type; |
6293 | int size; |
6294 | int i; |
6295 | |
6296 | thunk_init(STRUCT_MAX); |
6297 | |
6298 | #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); |
6299 | #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); |
6300 | #include "syscall_types.h" |
6301 | #undef STRUCT |
6302 | #undef STRUCT_SPECIAL |
6303 | |
6304 | /* Build target_to_host_errno_table[] table from |
6305 | * host_to_target_errno_table[]. */ |
6306 | for (i = 0; i < ERRNO_TABLE_SIZE; i++) { |
6307 | target_to_host_errno_table[host_to_target_errno_table[i]] = i; |
6308 | } |
6309 | |
6310 | /* we patch the ioctl size if necessary. We rely on the fact that |
6311 | no ioctl has all the bits at '1' in the size field */ |
6312 | ie = ioctl_entries; |
6313 | while (ie->target_cmd != 0) { |
6314 | if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == |
6315 | TARGET_IOC_SIZEMASK) { |
6316 | arg_type = ie->arg_type; |
6317 | if (arg_type[0] != TYPE_PTR) { |
6318 | fprintf(stderr, "cannot patch size for ioctl 0x%x\n" , |
6319 | ie->target_cmd); |
6320 | exit(1); |
6321 | } |
6322 | arg_type++; |
6323 | size = thunk_type_size(arg_type, 0); |
6324 | ie->target_cmd = (ie->target_cmd & |
6325 | ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | |
6326 | (size << TARGET_IOC_SIZESHIFT); |
6327 | } |
6328 | |
6329 | /* automatic consistency check if same arch */ |
6330 | #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \ |
6331 | (defined(__x86_64__) && defined(TARGET_X86_64)) |
6332 | if (unlikely(ie->target_cmd != ie->host_cmd)) { |
6333 | fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n" , |
6334 | ie->name, ie->target_cmd, ie->host_cmd); |
6335 | } |
6336 | #endif |
6337 | ie++; |
6338 | } |
6339 | } |
6340 | |
6341 | #if TARGET_ABI_BITS == 32 |
6342 | static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) |
6343 | { |
6344 | #ifdef TARGET_WORDS_BIGENDIAN |
6345 | return ((uint64_t)word0 << 32) | word1; |
6346 | #else |
6347 | return ((uint64_t)word1 << 32) | word0; |
6348 | #endif |
6349 | } |
6350 | #else /* TARGET_ABI_BITS == 32 */ |
6351 | static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) |
6352 | { |
6353 | return word0; |
6354 | } |
6355 | #endif /* TARGET_ABI_BITS != 32 */ |
6356 | |
6357 | #ifdef TARGET_NR_truncate64 |
6358 | static inline abi_long target_truncate64(void *cpu_env, const char *arg1, |
6359 | abi_long arg2, |
6360 | abi_long arg3, |
6361 | abi_long arg4) |
6362 | { |
6363 | if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) { |
6364 | arg2 = arg3; |
6365 | arg3 = arg4; |
6366 | } |
6367 | return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); |
6368 | } |
6369 | #endif |
6370 | |
6371 | #ifdef TARGET_NR_ftruncate64 |
6372 | static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, |
6373 | abi_long arg2, |
6374 | abi_long arg3, |
6375 | abi_long arg4) |
6376 | { |
6377 | if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) { |
6378 | arg2 = arg3; |
6379 | arg3 = arg4; |
6380 | } |
6381 | return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); |
6382 | } |
6383 | #endif |
6384 | |
6385 | static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec, |
6386 | abi_ulong target_addr) |
6387 | { |
6388 | struct target_itimerspec *target_itspec; |
6389 | |
6390 | if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) { |
6391 | return -TARGET_EFAULT; |
6392 | } |
6393 | |
6394 | host_itspec->it_interval.tv_sec = |
6395 | tswapal(target_itspec->it_interval.tv_sec); |
6396 | host_itspec->it_interval.tv_nsec = |
6397 | tswapal(target_itspec->it_interval.tv_nsec); |
6398 | host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec); |
6399 | host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec); |
6400 | |
6401 | unlock_user_struct(target_itspec, target_addr, 1); |
6402 | return 0; |
6403 | } |
6404 | |
6405 | static inline abi_long host_to_target_itimerspec(abi_ulong target_addr, |
6406 | struct itimerspec *host_its) |
6407 | { |
6408 | struct target_itimerspec *target_itspec; |
6409 | |
6410 | if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) { |
6411 | return -TARGET_EFAULT; |
6412 | } |
6413 | |
6414 | target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec); |
6415 | target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec); |
6416 | |
6417 | target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec); |
6418 | target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec); |
6419 | |
6420 | unlock_user_struct(target_itspec, target_addr, 0); |
6421 | return 0; |
6422 | } |
6423 | |
6424 | static inline abi_long target_to_host_timex(struct timex *host_tx, |
6425 | abi_long target_addr) |
6426 | { |
6427 | struct target_timex *target_tx; |
6428 | |
6429 | if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) { |
6430 | return -TARGET_EFAULT; |
6431 | } |
6432 | |
6433 | __get_user(host_tx->modes, &target_tx->modes); |
6434 | __get_user(host_tx->offset, &target_tx->offset); |
6435 | __get_user(host_tx->freq, &target_tx->freq); |
6436 | __get_user(host_tx->maxerror, &target_tx->maxerror); |
6437 | __get_user(host_tx->esterror, &target_tx->esterror); |
6438 | __get_user(host_tx->status, &target_tx->status); |
6439 | __get_user(host_tx->constant, &target_tx->constant); |
6440 | __get_user(host_tx->precision, &target_tx->precision); |
6441 | __get_user(host_tx->tolerance, &target_tx->tolerance); |
6442 | __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec); |
6443 | __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec); |
6444 | __get_user(host_tx->tick, &target_tx->tick); |
6445 | __get_user(host_tx->ppsfreq, &target_tx->ppsfreq); |
6446 | __get_user(host_tx->jitter, &target_tx->jitter); |
6447 | __get_user(host_tx->shift, &target_tx->shift); |
6448 | __get_user(host_tx->stabil, &target_tx->stabil); |
6449 | __get_user(host_tx->jitcnt, &target_tx->jitcnt); |
6450 | __get_user(host_tx->calcnt, &target_tx->calcnt); |
6451 | __get_user(host_tx->errcnt, &target_tx->errcnt); |
6452 | __get_user(host_tx->stbcnt, &target_tx->stbcnt); |
6453 | __get_user(host_tx->tai, &target_tx->tai); |
6454 | |
6455 | unlock_user_struct(target_tx, target_addr, 0); |
6456 | return 0; |
6457 | } |
6458 | |
6459 | static inline abi_long host_to_target_timex(abi_long target_addr, |
6460 | struct timex *host_tx) |
6461 | { |
6462 | struct target_timex *target_tx; |
6463 | |
6464 | if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) { |
6465 | return -TARGET_EFAULT; |
6466 | } |
6467 | |
6468 | __put_user(host_tx->modes, &target_tx->modes); |
6469 | __put_user(host_tx->offset, &target_tx->offset); |
6470 | __put_user(host_tx->freq, &target_tx->freq); |
6471 | __put_user(host_tx->maxerror, &target_tx->maxerror); |
6472 | __put_user(host_tx->esterror, &target_tx->esterror); |
6473 | __put_user(host_tx->status, &target_tx->status); |
6474 | __put_user(host_tx->constant, &target_tx->constant); |
6475 | __put_user(host_tx->precision, &target_tx->precision); |
6476 | __put_user(host_tx->tolerance, &target_tx->tolerance); |
6477 | __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec); |
6478 | __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec); |
6479 | __put_user(host_tx->tick, &target_tx->tick); |
6480 | __put_user(host_tx->ppsfreq, &target_tx->ppsfreq); |
6481 | __put_user(host_tx->jitter, &target_tx->jitter); |
6482 | __put_user(host_tx->shift, &target_tx->shift); |
6483 | __put_user(host_tx->stabil, &target_tx->stabil); |
6484 | __put_user(host_tx->jitcnt, &target_tx->jitcnt); |
6485 | __put_user(host_tx->calcnt, &target_tx->calcnt); |
6486 | __put_user(host_tx->errcnt, &target_tx->errcnt); |
6487 | __put_user(host_tx->stbcnt, &target_tx->stbcnt); |
6488 | __put_user(host_tx->tai, &target_tx->tai); |
6489 | |
6490 | unlock_user_struct(target_tx, target_addr, 1); |
6491 | return 0; |
6492 | } |
6493 | |
6494 | |
6495 | static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp, |
6496 | abi_ulong target_addr) |
6497 | { |
6498 | struct target_sigevent *target_sevp; |
6499 | |
6500 | if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) { |
6501 | return -TARGET_EFAULT; |
6502 | } |
6503 | |
6504 | /* This union is awkward on 64 bit systems because it has a 32 bit |
6505 | * integer and a pointer in it; we follow the conversion approach |
6506 | * used for handling sigval types in signal.c so the guest should get |
6507 | * the correct value back even if we did a 64 bit byteswap and it's |
6508 | * using the 32 bit integer. |
6509 | */ |
6510 | host_sevp->sigev_value.sival_ptr = |
6511 | (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr); |
6512 | host_sevp->sigev_signo = |
6513 | target_to_host_signal(tswap32(target_sevp->sigev_signo)); |
6514 | host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify); |
6515 | host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid); |
6516 | |
6517 | unlock_user_struct(target_sevp, target_addr, 1); |
6518 | return 0; |
6519 | } |
6520 | |
6521 | #if defined(TARGET_NR_mlockall) |
6522 | static inline int target_to_host_mlockall_arg(int arg) |
6523 | { |
6524 | int result = 0; |
6525 | |
6526 | if (arg & TARGET_MLOCKALL_MCL_CURRENT) { |
6527 | result |= MCL_CURRENT; |
6528 | } |
6529 | if (arg & TARGET_MLOCKALL_MCL_FUTURE) { |
6530 | result |= MCL_FUTURE; |
6531 | } |
6532 | return result; |
6533 | } |
6534 | #endif |
6535 | |
6536 | #if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \ |
6537 | defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \ |
6538 | defined(TARGET_NR_newfstatat)) |
6539 | static inline abi_long host_to_target_stat64(void *cpu_env, |
6540 | abi_ulong target_addr, |
6541 | struct stat *host_st) |
6542 | { |
6543 | #if defined(TARGET_ARM) && defined(TARGET_ABI32) |
6544 | if (((CPUARMState *)cpu_env)->eabi) { |
6545 | struct target_eabi_stat64 *target_st; |
6546 | |
6547 | if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) |
6548 | return -TARGET_EFAULT; |
6549 | memset(target_st, 0, sizeof(struct target_eabi_stat64)); |
6550 | __put_user(host_st->st_dev, &target_st->st_dev); |
6551 | __put_user(host_st->st_ino, &target_st->st_ino); |
6552 | #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO |
6553 | __put_user(host_st->st_ino, &target_st->__st_ino); |
6554 | #endif |
6555 | __put_user(host_st->st_mode, &target_st->st_mode); |
6556 | __put_user(host_st->st_nlink, &target_st->st_nlink); |
6557 | __put_user(host_st->st_uid, &target_st->st_uid); |
6558 | __put_user(host_st->st_gid, &target_st->st_gid); |
6559 | __put_user(host_st->st_rdev, &target_st->st_rdev); |
6560 | __put_user(host_st->st_size, &target_st->st_size); |
6561 | __put_user(host_st->st_blksize, &target_st->st_blksize); |
6562 | __put_user(host_st->st_blocks, &target_st->st_blocks); |
6563 | __put_user(host_st->st_atime, &target_st->target_st_atime); |
6564 | __put_user(host_st->st_mtime, &target_st->target_st_mtime); |
6565 | __put_user(host_st->st_ctime, &target_st->target_st_ctime); |
6566 | #if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 |
6567 | __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec); |
6568 | __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec); |
6569 | __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec); |
6570 | #endif |
6571 | unlock_user_struct(target_st, target_addr, 1); |
6572 | } else |
6573 | #endif |
6574 | { |
6575 | #if defined(TARGET_HAS_STRUCT_STAT64) |
6576 | struct target_stat64 *target_st; |
6577 | #else |
6578 | struct target_stat *target_st; |
6579 | #endif |
6580 | |
6581 | if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) |
6582 | return -TARGET_EFAULT; |
6583 | memset(target_st, 0, sizeof(*target_st)); |
6584 | __put_user(host_st->st_dev, &target_st->st_dev); |
6585 | __put_user(host_st->st_ino, &target_st->st_ino); |
6586 | #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO |
6587 | __put_user(host_st->st_ino, &target_st->__st_ino); |
6588 | #endif |
6589 | __put_user(host_st->st_mode, &target_st->st_mode); |
6590 | __put_user(host_st->st_nlink, &target_st->st_nlink); |
6591 | __put_user(host_st->st_uid, &target_st->st_uid); |
6592 | __put_user(host_st->st_gid, &target_st->st_gid); |
6593 | __put_user(host_st->st_rdev, &target_st->st_rdev); |
6594 | /* XXX: better use of kernel struct */ |
6595 | __put_user(host_st->st_size, &target_st->st_size); |
6596 | __put_user(host_st->st_blksize, &target_st->st_blksize); |
6597 | __put_user(host_st->st_blocks, &target_st->st_blocks); |
6598 | __put_user(host_st->st_atime, &target_st->target_st_atime); |
6599 | __put_user(host_st->st_mtime, &target_st->target_st_mtime); |
6600 | __put_user(host_st->st_ctime, &target_st->target_st_ctime); |
6601 | #if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 |
6602 | __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec); |
6603 | __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec); |
6604 | __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec); |
6605 | #endif |
6606 | unlock_user_struct(target_st, target_addr, 1); |
6607 | } |
6608 | |
6609 | return 0; |
6610 | } |
6611 | #endif |
6612 | |
6613 | #if defined(TARGET_NR_statx) && defined(__NR_statx) |
6614 | static inline abi_long host_to_target_statx(struct target_statx *host_stx, |
6615 | abi_ulong target_addr) |
6616 | { |
6617 | struct target_statx *target_stx; |
6618 | |
6619 | if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) { |
6620 | return -TARGET_EFAULT; |
6621 | } |
6622 | memset(target_stx, 0, sizeof(*target_stx)); |
6623 | |
6624 | __put_user(host_stx->stx_mask, &target_stx->stx_mask); |
6625 | __put_user(host_stx->stx_blksize, &target_stx->stx_blksize); |
6626 | __put_user(host_stx->stx_attributes, &target_stx->stx_attributes); |
6627 | __put_user(host_stx->stx_nlink, &target_stx->stx_nlink); |
6628 | __put_user(host_stx->stx_uid, &target_stx->stx_uid); |
6629 | __put_user(host_stx->stx_gid, &target_stx->stx_gid); |
6630 | __put_user(host_stx->stx_mode, &target_stx->stx_mode); |
6631 | __put_user(host_stx->stx_ino, &target_stx->stx_ino); |
6632 | __put_user(host_stx->stx_size, &target_stx->stx_size); |
6633 | __put_user(host_stx->stx_blocks, &target_stx->stx_blocks); |
6634 | __put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask); |
6635 | __put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec); |
6636 | __put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec); |
6637 | __put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_atime.tv_sec); |
6638 | __put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_atime.tv_nsec); |
6639 | __put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_atime.tv_sec); |
6640 | __put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_atime.tv_nsec); |
6641 | __put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_atime.tv_sec); |
6642 | __put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_atime.tv_nsec); |
6643 | __put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major); |
6644 | __put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor); |
6645 | __put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major); |
6646 | __put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor); |
6647 | |
6648 | unlock_user_struct(target_stx, target_addr, 1); |
6649 | |
6650 | return 0; |
6651 | } |
6652 | #endif |
6653 | |
6654 | |
6655 | /* ??? Using host futex calls even when target atomic operations |
6656 | are not really atomic probably breaks things. However implementing |
6657 | futexes locally would make futexes shared between multiple processes |
6658 | tricky. However they're probably useless because guest atomic |
6659 | operations won't work either. */ |
6660 | static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout, |
6661 | target_ulong uaddr2, int val3) |
6662 | { |
6663 | struct timespec ts, *pts; |
6664 | int base_op; |
6665 | |
6666 | /* ??? We assume FUTEX_* constants are the same on both host |
6667 | and target. */ |
6668 | #ifdef FUTEX_CMD_MASK |
6669 | base_op = op & FUTEX_CMD_MASK; |
6670 | #else |
6671 | base_op = op; |
6672 | #endif |
6673 | switch (base_op) { |
6674 | case FUTEX_WAIT: |
6675 | case FUTEX_WAIT_BITSET: |
6676 | if (timeout) { |
6677 | pts = &ts; |
6678 | target_to_host_timespec(pts, timeout); |
6679 | } else { |
6680 | pts = NULL; |
6681 | } |
6682 | return get_errno(safe_futex(g2h(uaddr), op, tswap32(val), |
6683 | pts, NULL, val3)); |
6684 | case FUTEX_WAKE: |
6685 | return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0)); |
6686 | case FUTEX_FD: |
6687 | return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0)); |
6688 | case FUTEX_REQUEUE: |
6689 | case FUTEX_CMP_REQUEUE: |
6690 | case FUTEX_WAKE_OP: |
6691 | /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the |
6692 | TIMEOUT parameter is interpreted as a uint32_t by the kernel. |
6693 | But the prototype takes a `struct timespec *'; insert casts |
6694 | to satisfy the compiler. We do not need to tswap TIMEOUT |
6695 | since it's not compared to guest memory. */ |
6696 | pts = (struct timespec *)(uintptr_t) timeout; |
6697 | return get_errno(safe_futex(g2h(uaddr), op, val, pts, |
6698 | g2h(uaddr2), |
6699 | (base_op == FUTEX_CMP_REQUEUE |
6700 | ? tswap32(val3) |
6701 | : val3))); |
6702 | default: |
6703 | return -TARGET_ENOSYS; |
6704 | } |
6705 | } |
6706 | #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
6707 | static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname, |
6708 | abi_long handle, abi_long mount_id, |
6709 | abi_long flags) |
6710 | { |
6711 | struct file_handle *target_fh; |
6712 | struct file_handle *fh; |
6713 | int mid = 0; |
6714 | abi_long ret; |
6715 | char *name; |
6716 | unsigned int size, total_size; |
6717 | |
6718 | if (get_user_s32(size, handle)) { |
6719 | return -TARGET_EFAULT; |
6720 | } |
6721 | |
6722 | name = lock_user_string(pathname); |
6723 | if (!name) { |
6724 | return -TARGET_EFAULT; |
6725 | } |
6726 | |
6727 | total_size = sizeof(struct file_handle) + size; |
6728 | target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0); |
6729 | if (!target_fh) { |
6730 | unlock_user(name, pathname, 0); |
6731 | return -TARGET_EFAULT; |
6732 | } |
6733 | |
6734 | fh = g_malloc0(total_size); |
6735 | fh->handle_bytes = size; |
6736 | |
6737 | ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags)); |
6738 | unlock_user(name, pathname, 0); |
6739 | |
6740 | /* man name_to_handle_at(2): |
6741 | * Other than the use of the handle_bytes field, the caller should treat |
6742 | * the file_handle structure as an opaque data type |
6743 | */ |
6744 | |
6745 | memcpy(target_fh, fh, total_size); |
6746 | target_fh->handle_bytes = tswap32(fh->handle_bytes); |
6747 | target_fh->handle_type = tswap32(fh->handle_type); |
6748 | g_free(fh); |
6749 | unlock_user(target_fh, handle, total_size); |
6750 | |
6751 | if (put_user_s32(mid, mount_id)) { |
6752 | return -TARGET_EFAULT; |
6753 | } |
6754 | |
6755 | return ret; |
6756 | |
6757 | } |
6758 | #endif |
6759 | |
6760 | #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
6761 | static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle, |
6762 | abi_long flags) |
6763 | { |
6764 | struct file_handle *target_fh; |
6765 | struct file_handle *fh; |
6766 | unsigned int size, total_size; |
6767 | abi_long ret; |
6768 | |
6769 | if (get_user_s32(size, handle)) { |
6770 | return -TARGET_EFAULT; |
6771 | } |
6772 | |
6773 | total_size = sizeof(struct file_handle) + size; |
6774 | target_fh = lock_user(VERIFY_READ, handle, total_size, 1); |
6775 | if (!target_fh) { |
6776 | return -TARGET_EFAULT; |
6777 | } |
6778 | |
6779 | fh = g_memdup(target_fh, total_size); |
6780 | fh->handle_bytes = size; |
6781 | fh->handle_type = tswap32(target_fh->handle_type); |
6782 | |
6783 | ret = get_errno(open_by_handle_at(mount_fd, fh, |
6784 | target_to_host_bitmask(flags, fcntl_flags_tbl))); |
6785 | |
6786 | g_free(fh); |
6787 | |
6788 | unlock_user(target_fh, handle, total_size); |
6789 | |
6790 | return ret; |
6791 | } |
6792 | #endif |
6793 | |
6794 | #if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4) |
6795 | |
6796 | static abi_long do_signalfd4(int fd, abi_long mask, int flags) |
6797 | { |
6798 | int host_flags; |
6799 | target_sigset_t *target_mask; |
6800 | sigset_t host_mask; |
6801 | abi_long ret; |
6802 | |
6803 | if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) { |
6804 | return -TARGET_EINVAL; |
6805 | } |
6806 | if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) { |
6807 | return -TARGET_EFAULT; |
6808 | } |
6809 | |
6810 | target_to_host_sigset(&host_mask, target_mask); |
6811 | |
6812 | host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl); |
6813 | |
6814 | ret = get_errno(signalfd(fd, &host_mask, host_flags)); |
6815 | if (ret >= 0) { |
6816 | fd_trans_register(ret, &target_signalfd_trans); |
6817 | } |
6818 | |
6819 | unlock_user_struct(target_mask, mask, 0); |
6820 | |
6821 | return ret; |
6822 | } |
6823 | #endif |
6824 | |
6825 | /* Map host to target signal numbers for the wait family of syscalls. |
6826 | Assume all other status bits are the same. */ |
6827 | int host_to_target_waitstatus(int status) |
6828 | { |
6829 | if (WIFSIGNALED(status)) { |
6830 | return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f); |
6831 | } |
6832 | if (WIFSTOPPED(status)) { |
6833 | return (host_to_target_signal(WSTOPSIG(status)) << 8) |
6834 | | (status & 0xff); |
6835 | } |
6836 | return status; |
6837 | } |
6838 | |
6839 | static int open_self_cmdline(void *cpu_env, int fd) |
6840 | { |
6841 | CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
6842 | struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm; |
6843 | int i; |
6844 | |
6845 | for (i = 0; i < bprm->argc; i++) { |
6846 | size_t len = strlen(bprm->argv[i]) + 1; |
6847 | |
6848 | if (write(fd, bprm->argv[i], len) != len) { |
6849 | return -1; |
6850 | } |
6851 | } |
6852 | |
6853 | return 0; |
6854 | } |
6855 | |
6856 | static int open_self_maps(void *cpu_env, int fd) |
6857 | { |
6858 | CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
6859 | TaskState *ts = cpu->opaque; |
6860 | FILE *fp; |
6861 | char *line = NULL; |
6862 | size_t len = 0; |
6863 | ssize_t read; |
6864 | |
6865 | fp = fopen("/proc/self/maps" , "r" ); |
6866 | if (fp == NULL) { |
6867 | return -1; |
6868 | } |
6869 | |
6870 | while ((read = getline(&line, &len, fp)) != -1) { |
6871 | int fields, dev_maj, dev_min, inode; |
6872 | uint64_t min, max, offset; |
6873 | char flag_r, flag_w, flag_x, flag_p; |
6874 | char path[512] = "" ; |
6875 | fields = sscanf(line, "%" PRIx64"-%" PRIx64" %c%c%c%c %" PRIx64" %x:%x %d" |
6876 | " %512s" , &min, &max, &flag_r, &flag_w, &flag_x, |
6877 | &flag_p, &offset, &dev_maj, &dev_min, &inode, path); |
6878 | |
6879 | if ((fields < 10) || (fields > 11)) { |
6880 | continue; |
6881 | } |
6882 | if (h2g_valid(min)) { |
6883 | int flags = page_get_flags(h2g(min)); |
6884 | max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1; |
6885 | if (page_check_range(h2g(min), max - min, flags) == -1) { |
6886 | continue; |
6887 | } |
6888 | if (h2g(min) == ts->info->stack_limit) { |
6889 | pstrcpy(path, sizeof(path), " [stack]" ); |
6890 | } |
6891 | dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr |
6892 | " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n" , |
6893 | h2g(min), h2g(max - 1) + 1, flag_r, flag_w, |
6894 | flag_x, flag_p, offset, dev_maj, dev_min, inode, |
6895 | path[0] ? " " : "" , path); |
6896 | } |
6897 | } |
6898 | |
6899 | free(line); |
6900 | fclose(fp); |
6901 | |
6902 | return 0; |
6903 | } |
6904 | |
6905 | static int open_self_stat(void *cpu_env, int fd) |
6906 | { |
6907 | CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
6908 | TaskState *ts = cpu->opaque; |
6909 | abi_ulong start_stack = ts->info->start_stack; |
6910 | int i; |
6911 | |
6912 | for (i = 0; i < 44; i++) { |
6913 | char buf[128]; |
6914 | int len; |
6915 | uint64_t val = 0; |
6916 | |
6917 | if (i == 0) { |
6918 | /* pid */ |
6919 | val = getpid(); |
6920 | snprintf(buf, sizeof(buf), "%" PRId64 " " , val); |
6921 | } else if (i == 1) { |
6922 | /* app name */ |
6923 | snprintf(buf, sizeof(buf), "(%s) " , ts->bprm->argv[0]); |
6924 | } else if (i == 27) { |
6925 | /* stack bottom */ |
6926 | val = start_stack; |
6927 | snprintf(buf, sizeof(buf), "%" PRId64 " " , val); |
6928 | } else { |
6929 | /* for the rest, there is MasterCard */ |
6930 | snprintf(buf, sizeof(buf), "0%c" , i == 43 ? '\n' : ' '); |
6931 | } |
6932 | |
6933 | len = strlen(buf); |
6934 | if (write(fd, buf, len) != len) { |
6935 | return -1; |
6936 | } |
6937 | } |
6938 | |
6939 | return 0; |
6940 | } |
6941 | |
6942 | static int open_self_auxv(void *cpu_env, int fd) |
6943 | { |
6944 | CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
6945 | TaskState *ts = cpu->opaque; |
6946 | abi_ulong auxv = ts->info->saved_auxv; |
6947 | abi_ulong len = ts->info->auxv_len; |
6948 | char *ptr; |
6949 | |
6950 | /* |
6951 | * Auxiliary vector is stored in target process stack. |
6952 | * read in whole auxv vector and copy it to file |
6953 | */ |
6954 | ptr = lock_user(VERIFY_READ, auxv, len, 0); |
6955 | if (ptr != NULL) { |
6956 | while (len > 0) { |
6957 | ssize_t r; |
6958 | r = write(fd, ptr, len); |
6959 | if (r <= 0) { |
6960 | break; |
6961 | } |
6962 | len -= r; |
6963 | ptr += r; |
6964 | } |
6965 | lseek(fd, 0, SEEK_SET); |
6966 | unlock_user(ptr, auxv, len); |
6967 | } |
6968 | |
6969 | return 0; |
6970 | } |
6971 | |
6972 | static int is_proc_myself(const char *filename, const char *entry) |
6973 | { |
6974 | if (!strncmp(filename, "/proc/" , strlen("/proc/" ))) { |
6975 | filename += strlen("/proc/" ); |
6976 | if (!strncmp(filename, "self/" , strlen("self/" ))) { |
6977 | filename += strlen("self/" ); |
6978 | } else if (*filename >= '1' && *filename <= '9') { |
6979 | char myself[80]; |
6980 | snprintf(myself, sizeof(myself), "%d/" , getpid()); |
6981 | if (!strncmp(filename, myself, strlen(myself))) { |
6982 | filename += strlen(myself); |
6983 | } else { |
6984 | return 0; |
6985 | } |
6986 | } else { |
6987 | return 0; |
6988 | } |
6989 | if (!strcmp(filename, entry)) { |
6990 | return 1; |
6991 | } |
6992 | } |
6993 | return 0; |
6994 | } |
6995 | |
6996 | #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \ |
6997 | defined(TARGET_SPARC) || defined(TARGET_M68K) |
6998 | static int is_proc(const char *filename, const char *entry) |
6999 | { |
7000 | return strcmp(filename, entry) == 0; |
7001 | } |
7002 | #endif |
7003 | |
7004 | #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) |
7005 | static int open_net_route(void *cpu_env, int fd) |
7006 | { |
7007 | FILE *fp; |
7008 | char *line = NULL; |
7009 | size_t len = 0; |
7010 | ssize_t read; |
7011 | |
7012 | fp = fopen("/proc/net/route" , "r" ); |
7013 | if (fp == NULL) { |
7014 | return -1; |
7015 | } |
7016 | |
7017 | /* read header */ |
7018 | |
7019 | read = getline(&line, &len, fp); |
7020 | dprintf(fd, "%s" , line); |
7021 | |
7022 | /* read routes */ |
7023 | |
7024 | while ((read = getline(&line, &len, fp)) != -1) { |
7025 | char iface[16]; |
7026 | uint32_t dest, gw, mask; |
7027 | unsigned int flags, refcnt, use, metric, mtu, window, irtt; |
7028 | int fields; |
7029 | |
7030 | fields = sscanf(line, |
7031 | "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n" , |
7032 | iface, &dest, &gw, &flags, &refcnt, &use, &metric, |
7033 | &mask, &mtu, &window, &irtt); |
7034 | if (fields != 11) { |
7035 | continue; |
7036 | } |
7037 | dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n" , |
7038 | iface, tswap32(dest), tswap32(gw), flags, refcnt, use, |
7039 | metric, tswap32(mask), mtu, window, irtt); |
7040 | } |
7041 | |
7042 | free(line); |
7043 | fclose(fp); |
7044 | |
7045 | return 0; |
7046 | } |
7047 | #endif |
7048 | |
7049 | #if defined(TARGET_SPARC) |
7050 | static int open_cpuinfo(void *cpu_env, int fd) |
7051 | { |
7052 | dprintf(fd, "type\t\t: sun4u\n" ); |
7053 | return 0; |
7054 | } |
7055 | #endif |
7056 | |
7057 | #if defined(TARGET_M68K) |
7058 | static int open_hardware(void *cpu_env, int fd) |
7059 | { |
7060 | dprintf(fd, "Model:\t\tqemu-m68k\n" ); |
7061 | return 0; |
7062 | } |
7063 | #endif |
7064 | |
7065 | static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode) |
7066 | { |
7067 | struct fake_open { |
7068 | const char *filename; |
7069 | int (*fill)(void *cpu_env, int fd); |
7070 | int (*cmp)(const char *s1, const char *s2); |
7071 | }; |
7072 | const struct fake_open *fake_open; |
7073 | static const struct fake_open fakes[] = { |
7074 | { "maps" , open_self_maps, is_proc_myself }, |
7075 | { "stat" , open_self_stat, is_proc_myself }, |
7076 | { "auxv" , open_self_auxv, is_proc_myself }, |
7077 | { "cmdline" , open_self_cmdline, is_proc_myself }, |
7078 | #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) |
7079 | { "/proc/net/route" , open_net_route, is_proc }, |
7080 | #endif |
7081 | #if defined(TARGET_SPARC) |
7082 | { "/proc/cpuinfo" , open_cpuinfo, is_proc }, |
7083 | #endif |
7084 | #if defined(TARGET_M68K) |
7085 | { "/proc/hardware" , open_hardware, is_proc }, |
7086 | #endif |
7087 | { NULL, NULL, NULL } |
7088 | }; |
7089 | |
7090 | if (is_proc_myself(pathname, "exe" )) { |
7091 | int execfd = qemu_getauxval(AT_EXECFD); |
7092 | return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode); |
7093 | } |
7094 | |
7095 | for (fake_open = fakes; fake_open->filename; fake_open++) { |
7096 | if (fake_open->cmp(pathname, fake_open->filename)) { |
7097 | break; |
7098 | } |
7099 | } |
7100 | |
7101 | if (fake_open->filename) { |
7102 | const char *tmpdir; |
7103 | char filename[PATH_MAX]; |
7104 | int fd, r; |
7105 | |
7106 | /* create temporary file to map stat to */ |
7107 | tmpdir = getenv("TMPDIR" ); |
7108 | if (!tmpdir) |
7109 | tmpdir = "/tmp" ; |
7110 | snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX" , tmpdir); |
7111 | fd = mkstemp(filename); |
7112 | if (fd < 0) { |
7113 | return fd; |
7114 | } |
7115 | unlink(filename); |
7116 | |
7117 | if ((r = fake_open->fill(cpu_env, fd))) { |
7118 | int e = errno; |
7119 | close(fd); |
7120 | errno = e; |
7121 | return r; |
7122 | } |
7123 | lseek(fd, 0, SEEK_SET); |
7124 | |
7125 | return fd; |
7126 | } |
7127 | |
7128 | return safe_openat(dirfd, path(pathname), flags, mode); |
7129 | } |
7130 | |
7131 | #define TIMER_MAGIC 0x0caf0000 |
7132 | #define TIMER_MAGIC_MASK 0xffff0000 |
7133 | |
7134 | /* Convert QEMU provided timer ID back to internal 16bit index format */ |
7135 | static target_timer_t get_timer_id(abi_long arg) |
7136 | { |
7137 | target_timer_t timerid = arg; |
7138 | |
7139 | if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) { |
7140 | return -TARGET_EINVAL; |
7141 | } |
7142 | |
7143 | timerid &= 0xffff; |
7144 | |
7145 | if (timerid >= ARRAY_SIZE(g_posix_timers)) { |
7146 | return -TARGET_EINVAL; |
7147 | } |
7148 | |
7149 | return timerid; |
7150 | } |
7151 | |
7152 | static int target_to_host_cpu_mask(unsigned long *host_mask, |
7153 | size_t host_size, |
7154 | abi_ulong target_addr, |
7155 | size_t target_size) |
7156 | { |
7157 | unsigned target_bits = sizeof(abi_ulong) * 8; |
7158 | unsigned host_bits = sizeof(*host_mask) * 8; |
7159 | abi_ulong *target_mask; |
7160 | unsigned i, j; |
7161 | |
7162 | assert(host_size >= target_size); |
7163 | |
7164 | target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1); |
7165 | if (!target_mask) { |
7166 | return -TARGET_EFAULT; |
7167 | } |
7168 | memset(host_mask, 0, host_size); |
7169 | |
7170 | for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) { |
7171 | unsigned bit = i * target_bits; |
7172 | abi_ulong val; |
7173 | |
7174 | __get_user(val, &target_mask[i]); |
7175 | for (j = 0; j < target_bits; j++, bit++) { |
7176 | if (val & (1UL << j)) { |
7177 | host_mask[bit / host_bits] |= 1UL << (bit % host_bits); |
7178 | } |
7179 | } |
7180 | } |
7181 | |
7182 | unlock_user(target_mask, target_addr, 0); |
7183 | return 0; |
7184 | } |
7185 | |
7186 | static int host_to_target_cpu_mask(const unsigned long *host_mask, |
7187 | size_t host_size, |
7188 | abi_ulong target_addr, |
7189 | size_t target_size) |
7190 | { |
7191 | unsigned target_bits = sizeof(abi_ulong) * 8; |
7192 | unsigned host_bits = sizeof(*host_mask) * 8; |
7193 | abi_ulong *target_mask; |
7194 | unsigned i, j; |
7195 | |
7196 | assert(host_size >= target_size); |
7197 | |
7198 | target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0); |
7199 | if (!target_mask) { |
7200 | return -TARGET_EFAULT; |
7201 | } |
7202 | |
7203 | for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) { |
7204 | unsigned bit = i * target_bits; |
7205 | abi_ulong val = 0; |
7206 | |
7207 | for (j = 0; j < target_bits; j++, bit++) { |
7208 | if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) { |
7209 | val |= 1UL << j; |
7210 | } |
7211 | } |
7212 | __put_user(val, &target_mask[i]); |
7213 | } |
7214 | |
7215 | unlock_user(target_mask, target_addr, target_size); |
7216 | return 0; |
7217 | } |
7218 | |
7219 | /* This is an internal helper for do_syscall so that it is easier |
7220 | * to have a single return point, so that actions, such as logging |
7221 | * of syscall results, can be performed. |
7222 | * All errnos that do_syscall() returns must be -TARGET_<errcode>. |
7223 | */ |
7224 | static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, |
7225 | abi_long arg2, abi_long arg3, abi_long arg4, |
7226 | abi_long arg5, abi_long arg6, abi_long arg7, |
7227 | abi_long arg8) |
7228 | { |
7229 | CPUState *cpu = env_cpu(cpu_env); |
7230 | abi_long ret; |
7231 | #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \ |
7232 | || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \ |
7233 | || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \ |
7234 | || defined(TARGET_NR_statx) |
7235 | struct stat st; |
7236 | #endif |
7237 | #if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \ |
7238 | || defined(TARGET_NR_fstatfs) |
7239 | struct statfs stfs; |
7240 | #endif |
7241 | void *p; |
7242 | |
7243 | switch(num) { |
7244 | case TARGET_NR_exit: |
7245 | /* In old applications this may be used to implement _exit(2). |
7246 | However in threaded applictions it is used for thread termination, |
7247 | and _exit_group is used for application termination. |
7248 | Do thread termination if we have more then one thread. */ |
7249 | |
7250 | if (block_signals()) { |
7251 | return -TARGET_ERESTARTSYS; |
7252 | } |
7253 | |
7254 | cpu_list_lock(); |
7255 | |
7256 | if (CPU_NEXT(first_cpu)) { |
7257 | TaskState *ts; |
7258 | |
7259 | /* Remove the CPU from the list. */ |
7260 | QTAILQ_REMOVE_RCU(&cpus, cpu, node); |
7261 | |
7262 | cpu_list_unlock(); |
7263 | |
7264 | ts = cpu->opaque; |
7265 | if (ts->child_tidptr) { |
7266 | put_user_u32(0, ts->child_tidptr); |
7267 | sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, |
7268 | NULL, NULL, 0); |
7269 | } |
7270 | thread_cpu = NULL; |
7271 | object_unref(OBJECT(cpu)); |
7272 | g_free(ts); |
7273 | rcu_unregister_thread(); |
7274 | pthread_exit(NULL); |
7275 | } |
7276 | |
7277 | cpu_list_unlock(); |
7278 | preexit_cleanup(cpu_env, arg1); |
7279 | _exit(arg1); |
7280 | return 0; /* avoid warning */ |
7281 | case TARGET_NR_read: |
7282 | if (arg2 == 0 && arg3 == 0) { |
7283 | return get_errno(safe_read(arg1, 0, 0)); |
7284 | } else { |
7285 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
7286 | return -TARGET_EFAULT; |
7287 | ret = get_errno(safe_read(arg1, p, arg3)); |
7288 | if (ret >= 0 && |
7289 | fd_trans_host_to_target_data(arg1)) { |
7290 | ret = fd_trans_host_to_target_data(arg1)(p, ret); |
7291 | } |
7292 | unlock_user(p, arg2, ret); |
7293 | } |
7294 | return ret; |
7295 | case TARGET_NR_write: |
7296 | if (arg2 == 0 && arg3 == 0) { |
7297 | return get_errno(safe_write(arg1, 0, 0)); |
7298 | } |
7299 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
7300 | return -TARGET_EFAULT; |
7301 | if (fd_trans_target_to_host_data(arg1)) { |
7302 | void *copy = g_malloc(arg3); |
7303 | memcpy(copy, p, arg3); |
7304 | ret = fd_trans_target_to_host_data(arg1)(copy, arg3); |
7305 | if (ret >= 0) { |
7306 | ret = get_errno(safe_write(arg1, copy, ret)); |
7307 | } |
7308 | g_free(copy); |
7309 | } else { |
7310 | ret = get_errno(safe_write(arg1, p, arg3)); |
7311 | } |
7312 | unlock_user(p, arg2, 0); |
7313 | return ret; |
7314 | |
7315 | #ifdef TARGET_NR_open |
7316 | case TARGET_NR_open: |
7317 | if (!(p = lock_user_string(arg1))) |
7318 | return -TARGET_EFAULT; |
7319 | ret = get_errno(do_openat(cpu_env, AT_FDCWD, p, |
7320 | target_to_host_bitmask(arg2, fcntl_flags_tbl), |
7321 | arg3)); |
7322 | fd_trans_unregister(ret); |
7323 | unlock_user(p, arg1, 0); |
7324 | return ret; |
7325 | #endif |
7326 | case TARGET_NR_openat: |
7327 | if (!(p = lock_user_string(arg2))) |
7328 | return -TARGET_EFAULT; |
7329 | ret = get_errno(do_openat(cpu_env, arg1, p, |
7330 | target_to_host_bitmask(arg3, fcntl_flags_tbl), |
7331 | arg4)); |
7332 | fd_trans_unregister(ret); |
7333 | unlock_user(p, arg2, 0); |
7334 | return ret; |
7335 | #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
7336 | case TARGET_NR_name_to_handle_at: |
7337 | ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5); |
7338 | return ret; |
7339 | #endif |
7340 | #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
7341 | case TARGET_NR_open_by_handle_at: |
7342 | ret = do_open_by_handle_at(arg1, arg2, arg3); |
7343 | fd_trans_unregister(ret); |
7344 | return ret; |
7345 | #endif |
7346 | case TARGET_NR_close: |
7347 | fd_trans_unregister(arg1); |
7348 | return get_errno(close(arg1)); |
7349 | |
7350 | case TARGET_NR_brk: |
7351 | return do_brk(arg1); |
7352 | #ifdef TARGET_NR_fork |
7353 | case TARGET_NR_fork: |
7354 | return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0)); |
7355 | #endif |
7356 | #ifdef TARGET_NR_waitpid |
7357 | case TARGET_NR_waitpid: |
7358 | { |
7359 | int status; |
7360 | ret = get_errno(safe_wait4(arg1, &status, arg3, 0)); |
7361 | if (!is_error(ret) && arg2 && ret |
7362 | && put_user_s32(host_to_target_waitstatus(status), arg2)) |
7363 | return -TARGET_EFAULT; |
7364 | } |
7365 | return ret; |
7366 | #endif |
7367 | #ifdef TARGET_NR_waitid |
7368 | case TARGET_NR_waitid: |
7369 | { |
7370 | siginfo_t info; |
7371 | info.si_pid = 0; |
7372 | ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL)); |
7373 | if (!is_error(ret) && arg3 && info.si_pid != 0) { |
7374 | if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) |
7375 | return -TARGET_EFAULT; |
7376 | host_to_target_siginfo(p, &info); |
7377 | unlock_user(p, arg3, sizeof(target_siginfo_t)); |
7378 | } |
7379 | } |
7380 | return ret; |
7381 | #endif |
7382 | #ifdef TARGET_NR_creat /* not on alpha */ |
7383 | case TARGET_NR_creat: |
7384 | if (!(p = lock_user_string(arg1))) |
7385 | return -TARGET_EFAULT; |
7386 | ret = get_errno(creat(p, arg2)); |
7387 | fd_trans_unregister(ret); |
7388 | unlock_user(p, arg1, 0); |
7389 | return ret; |
7390 | #endif |
7391 | #ifdef TARGET_NR_link |
7392 | case TARGET_NR_link: |
7393 | { |
7394 | void * p2; |
7395 | p = lock_user_string(arg1); |
7396 | p2 = lock_user_string(arg2); |
7397 | if (!p || !p2) |
7398 | ret = -TARGET_EFAULT; |
7399 | else |
7400 | ret = get_errno(link(p, p2)); |
7401 | unlock_user(p2, arg2, 0); |
7402 | unlock_user(p, arg1, 0); |
7403 | } |
7404 | return ret; |
7405 | #endif |
7406 | #if defined(TARGET_NR_linkat) |
7407 | case TARGET_NR_linkat: |
7408 | { |
7409 | void * p2 = NULL; |
7410 | if (!arg2 || !arg4) |
7411 | return -TARGET_EFAULT; |
7412 | p = lock_user_string(arg2); |
7413 | p2 = lock_user_string(arg4); |
7414 | if (!p || !p2) |
7415 | ret = -TARGET_EFAULT; |
7416 | else |
7417 | ret = get_errno(linkat(arg1, p, arg3, p2, arg5)); |
7418 | unlock_user(p, arg2, 0); |
7419 | unlock_user(p2, arg4, 0); |
7420 | } |
7421 | return ret; |
7422 | #endif |
7423 | #ifdef TARGET_NR_unlink |
7424 | case TARGET_NR_unlink: |
7425 | if (!(p = lock_user_string(arg1))) |
7426 | return -TARGET_EFAULT; |
7427 | ret = get_errno(unlink(p)); |
7428 | unlock_user(p, arg1, 0); |
7429 | return ret; |
7430 | #endif |
7431 | #if defined(TARGET_NR_unlinkat) |
7432 | case TARGET_NR_unlinkat: |
7433 | if (!(p = lock_user_string(arg2))) |
7434 | return -TARGET_EFAULT; |
7435 | ret = get_errno(unlinkat(arg1, p, arg3)); |
7436 | unlock_user(p, arg2, 0); |
7437 | return ret; |
7438 | #endif |
7439 | case TARGET_NR_execve: |
7440 | { |
7441 | char **argp, **envp; |
7442 | int argc, envc; |
7443 | abi_ulong gp; |
7444 | abi_ulong guest_argp; |
7445 | abi_ulong guest_envp; |
7446 | abi_ulong addr; |
7447 | char **q; |
7448 | int total_size = 0; |
7449 | |
7450 | argc = 0; |
7451 | guest_argp = arg2; |
7452 | for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { |
7453 | if (get_user_ual(addr, gp)) |
7454 | return -TARGET_EFAULT; |
7455 | if (!addr) |
7456 | break; |
7457 | argc++; |
7458 | } |
7459 | envc = 0; |
7460 | guest_envp = arg3; |
7461 | for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { |
7462 | if (get_user_ual(addr, gp)) |
7463 | return -TARGET_EFAULT; |
7464 | if (!addr) |
7465 | break; |
7466 | envc++; |
7467 | } |
7468 | |
7469 | argp = g_new0(char *, argc + 1); |
7470 | envp = g_new0(char *, envc + 1); |
7471 | |
7472 | for (gp = guest_argp, q = argp; gp; |
7473 | gp += sizeof(abi_ulong), q++) { |
7474 | if (get_user_ual(addr, gp)) |
7475 | goto execve_efault; |
7476 | if (!addr) |
7477 | break; |
7478 | if (!(*q = lock_user_string(addr))) |
7479 | goto execve_efault; |
7480 | total_size += strlen(*q) + 1; |
7481 | } |
7482 | *q = NULL; |
7483 | |
7484 | for (gp = guest_envp, q = envp; gp; |
7485 | gp += sizeof(abi_ulong), q++) { |
7486 | if (get_user_ual(addr, gp)) |
7487 | goto execve_efault; |
7488 | if (!addr) |
7489 | break; |
7490 | if (!(*q = lock_user_string(addr))) |
7491 | goto execve_efault; |
7492 | total_size += strlen(*q) + 1; |
7493 | } |
7494 | *q = NULL; |
7495 | |
7496 | if (!(p = lock_user_string(arg1))) |
7497 | goto execve_efault; |
7498 | /* Although execve() is not an interruptible syscall it is |
7499 | * a special case where we must use the safe_syscall wrapper: |
7500 | * if we allow a signal to happen before we make the host |
7501 | * syscall then we will 'lose' it, because at the point of |
7502 | * execve the process leaves QEMU's control. So we use the |
7503 | * safe syscall wrapper to ensure that we either take the |
7504 | * signal as a guest signal, or else it does not happen |
7505 | * before the execve completes and makes it the other |
7506 | * program's problem. |
7507 | */ |
7508 | ret = get_errno(safe_execve(p, argp, envp)); |
7509 | unlock_user(p, arg1, 0); |
7510 | |
7511 | goto execve_end; |
7512 | |
7513 | execve_efault: |
7514 | ret = -TARGET_EFAULT; |
7515 | |
7516 | execve_end: |
7517 | for (gp = guest_argp, q = argp; *q; |
7518 | gp += sizeof(abi_ulong), q++) { |
7519 | if (get_user_ual(addr, gp) |
7520 | || !addr) |
7521 | break; |
7522 | unlock_user(*q, addr, 0); |
7523 | } |
7524 | for (gp = guest_envp, q = envp; *q; |
7525 | gp += sizeof(abi_ulong), q++) { |
7526 | if (get_user_ual(addr, gp) |
7527 | || !addr) |
7528 | break; |
7529 | unlock_user(*q, addr, 0); |
7530 | } |
7531 | |
7532 | g_free(argp); |
7533 | g_free(envp); |
7534 | } |
7535 | return ret; |
7536 | case TARGET_NR_chdir: |
7537 | if (!(p = lock_user_string(arg1))) |
7538 | return -TARGET_EFAULT; |
7539 | ret = get_errno(chdir(p)); |
7540 | unlock_user(p, arg1, 0); |
7541 | return ret; |
7542 | #ifdef TARGET_NR_time |
7543 | case TARGET_NR_time: |
7544 | { |
7545 | time_t host_time; |
7546 | ret = get_errno(time(&host_time)); |
7547 | if (!is_error(ret) |
7548 | && arg1 |
7549 | && put_user_sal(host_time, arg1)) |
7550 | return -TARGET_EFAULT; |
7551 | } |
7552 | return ret; |
7553 | #endif |
7554 | #ifdef TARGET_NR_mknod |
7555 | case TARGET_NR_mknod: |
7556 | if (!(p = lock_user_string(arg1))) |
7557 | return -TARGET_EFAULT; |
7558 | ret = get_errno(mknod(p, arg2, arg3)); |
7559 | unlock_user(p, arg1, 0); |
7560 | return ret; |
7561 | #endif |
7562 | #if defined(TARGET_NR_mknodat) |
7563 | case TARGET_NR_mknodat: |
7564 | if (!(p = lock_user_string(arg2))) |
7565 | return -TARGET_EFAULT; |
7566 | ret = get_errno(mknodat(arg1, p, arg3, arg4)); |
7567 | unlock_user(p, arg2, 0); |
7568 | return ret; |
7569 | #endif |
7570 | #ifdef TARGET_NR_chmod |
7571 | case TARGET_NR_chmod: |
7572 | if (!(p = lock_user_string(arg1))) |
7573 | return -TARGET_EFAULT; |
7574 | ret = get_errno(chmod(p, arg2)); |
7575 | unlock_user(p, arg1, 0); |
7576 | return ret; |
7577 | #endif |
7578 | #ifdef TARGET_NR_lseek |
7579 | case TARGET_NR_lseek: |
7580 | return get_errno(lseek(arg1, arg2, arg3)); |
7581 | #endif |
7582 | #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) |
7583 | /* Alpha specific */ |
7584 | case TARGET_NR_getxpid: |
7585 | ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); |
7586 | return get_errno(getpid()); |
7587 | #endif |
7588 | #ifdef TARGET_NR_getpid |
7589 | case TARGET_NR_getpid: |
7590 | return get_errno(getpid()); |
7591 | #endif |
7592 | case TARGET_NR_mount: |
7593 | { |
7594 | /* need to look at the data field */ |
7595 | void *p2, *p3; |
7596 | |
7597 | if (arg1) { |
7598 | p = lock_user_string(arg1); |
7599 | if (!p) { |
7600 | return -TARGET_EFAULT; |
7601 | } |
7602 | } else { |
7603 | p = NULL; |
7604 | } |
7605 | |
7606 | p2 = lock_user_string(arg2); |
7607 | if (!p2) { |
7608 | if (arg1) { |
7609 | unlock_user(p, arg1, 0); |
7610 | } |
7611 | return -TARGET_EFAULT; |
7612 | } |
7613 | |
7614 | if (arg3) { |
7615 | p3 = lock_user_string(arg3); |
7616 | if (!p3) { |
7617 | if (arg1) { |
7618 | unlock_user(p, arg1, 0); |
7619 | } |
7620 | unlock_user(p2, arg2, 0); |
7621 | return -TARGET_EFAULT; |
7622 | } |
7623 | } else { |
7624 | p3 = NULL; |
7625 | } |
7626 | |
7627 | /* FIXME - arg5 should be locked, but it isn't clear how to |
7628 | * do that since it's not guaranteed to be a NULL-terminated |
7629 | * string. |
7630 | */ |
7631 | if (!arg5) { |
7632 | ret = mount(p, p2, p3, (unsigned long)arg4, NULL); |
7633 | } else { |
7634 | ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)); |
7635 | } |
7636 | ret = get_errno(ret); |
7637 | |
7638 | if (arg1) { |
7639 | unlock_user(p, arg1, 0); |
7640 | } |
7641 | unlock_user(p2, arg2, 0); |
7642 | if (arg3) { |
7643 | unlock_user(p3, arg3, 0); |
7644 | } |
7645 | } |
7646 | return ret; |
7647 | #ifdef TARGET_NR_umount |
7648 | case TARGET_NR_umount: |
7649 | if (!(p = lock_user_string(arg1))) |
7650 | return -TARGET_EFAULT; |
7651 | ret = get_errno(umount(p)); |
7652 | unlock_user(p, arg1, 0); |
7653 | return ret; |
7654 | #endif |
7655 | #ifdef TARGET_NR_stime /* not on alpha */ |
7656 | case TARGET_NR_stime: |
7657 | { |
7658 | time_t host_time; |
7659 | if (get_user_sal(host_time, arg1)) |
7660 | return -TARGET_EFAULT; |
7661 | return get_errno(stime(&host_time)); |
7662 | } |
7663 | #endif |
7664 | #ifdef TARGET_NR_alarm /* not on alpha */ |
7665 | case TARGET_NR_alarm: |
7666 | return alarm(arg1); |
7667 | #endif |
7668 | #ifdef TARGET_NR_pause /* not on alpha */ |
7669 | case TARGET_NR_pause: |
7670 | if (!block_signals()) { |
7671 | sigsuspend(&((TaskState *)cpu->opaque)->signal_mask); |
7672 | } |
7673 | return -TARGET_EINTR; |
7674 | #endif |
7675 | #ifdef TARGET_NR_utime |
7676 | case TARGET_NR_utime: |
7677 | { |
7678 | struct utimbuf tbuf, *host_tbuf; |
7679 | struct target_utimbuf *target_tbuf; |
7680 | if (arg2) { |
7681 | if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) |
7682 | return -TARGET_EFAULT; |
7683 | tbuf.actime = tswapal(target_tbuf->actime); |
7684 | tbuf.modtime = tswapal(target_tbuf->modtime); |
7685 | unlock_user_struct(target_tbuf, arg2, 0); |
7686 | host_tbuf = &tbuf; |
7687 | } else { |
7688 | host_tbuf = NULL; |
7689 | } |
7690 | if (!(p = lock_user_string(arg1))) |
7691 | return -TARGET_EFAULT; |
7692 | ret = get_errno(utime(p, host_tbuf)); |
7693 | unlock_user(p, arg1, 0); |
7694 | } |
7695 | return ret; |
7696 | #endif |
7697 | #ifdef TARGET_NR_utimes |
7698 | case TARGET_NR_utimes: |
7699 | { |
7700 | struct timeval *tvp, tv[2]; |
7701 | if (arg2) { |
7702 | if (copy_from_user_timeval(&tv[0], arg2) |
7703 | || copy_from_user_timeval(&tv[1], |
7704 | arg2 + sizeof(struct target_timeval))) |
7705 | return -TARGET_EFAULT; |
7706 | tvp = tv; |
7707 | } else { |
7708 | tvp = NULL; |
7709 | } |
7710 | if (!(p = lock_user_string(arg1))) |
7711 | return -TARGET_EFAULT; |
7712 | ret = get_errno(utimes(p, tvp)); |
7713 | unlock_user(p, arg1, 0); |
7714 | } |
7715 | return ret; |
7716 | #endif |
7717 | #if defined(TARGET_NR_futimesat) |
7718 | case TARGET_NR_futimesat: |
7719 | { |
7720 | struct timeval *tvp, tv[2]; |
7721 | if (arg3) { |
7722 | if (copy_from_user_timeval(&tv[0], arg3) |
7723 | || copy_from_user_timeval(&tv[1], |
7724 | arg3 + sizeof(struct target_timeval))) |
7725 | return -TARGET_EFAULT; |
7726 | tvp = tv; |
7727 | } else { |
7728 | tvp = NULL; |
7729 | } |
7730 | if (!(p = lock_user_string(arg2))) { |
7731 | return -TARGET_EFAULT; |
7732 | } |
7733 | ret = get_errno(futimesat(arg1, path(p), tvp)); |
7734 | unlock_user(p, arg2, 0); |
7735 | } |
7736 | return ret; |
7737 | #endif |
7738 | #ifdef TARGET_NR_access |
7739 | case TARGET_NR_access: |
7740 | if (!(p = lock_user_string(arg1))) { |
7741 | return -TARGET_EFAULT; |
7742 | } |
7743 | ret = get_errno(access(path(p), arg2)); |
7744 | unlock_user(p, arg1, 0); |
7745 | return ret; |
7746 | #endif |
7747 | #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) |
7748 | case TARGET_NR_faccessat: |
7749 | if (!(p = lock_user_string(arg2))) { |
7750 | return -TARGET_EFAULT; |
7751 | } |
7752 | ret = get_errno(faccessat(arg1, p, arg3, 0)); |
7753 | unlock_user(p, arg2, 0); |
7754 | return ret; |
7755 | #endif |
7756 | #ifdef TARGET_NR_nice /* not on alpha */ |
7757 | case TARGET_NR_nice: |
7758 | return get_errno(nice(arg1)); |
7759 | #endif |
7760 | case TARGET_NR_sync: |
7761 | sync(); |
7762 | return 0; |
7763 | #if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS) |
7764 | case TARGET_NR_syncfs: |
7765 | return get_errno(syncfs(arg1)); |
7766 | #endif |
7767 | case TARGET_NR_kill: |
7768 | return get_errno(safe_kill(arg1, target_to_host_signal(arg2))); |
7769 | #ifdef TARGET_NR_rename |
7770 | case TARGET_NR_rename: |
7771 | { |
7772 | void *p2; |
7773 | p = lock_user_string(arg1); |
7774 | p2 = lock_user_string(arg2); |
7775 | if (!p || !p2) |
7776 | ret = -TARGET_EFAULT; |
7777 | else |
7778 | ret = get_errno(rename(p, p2)); |
7779 | unlock_user(p2, arg2, 0); |
7780 | unlock_user(p, arg1, 0); |
7781 | } |
7782 | return ret; |
7783 | #endif |
7784 | #if defined(TARGET_NR_renameat) |
7785 | case TARGET_NR_renameat: |
7786 | { |
7787 | void *p2; |
7788 | p = lock_user_string(arg2); |
7789 | p2 = lock_user_string(arg4); |
7790 | if (!p || !p2) |
7791 | ret = -TARGET_EFAULT; |
7792 | else |
7793 | ret = get_errno(renameat(arg1, p, arg3, p2)); |
7794 | unlock_user(p2, arg4, 0); |
7795 | unlock_user(p, arg2, 0); |
7796 | } |
7797 | return ret; |
7798 | #endif |
7799 | #if defined(TARGET_NR_renameat2) |
7800 | case TARGET_NR_renameat2: |
7801 | { |
7802 | void *p2; |
7803 | p = lock_user_string(arg2); |
7804 | p2 = lock_user_string(arg4); |
7805 | if (!p || !p2) { |
7806 | ret = -TARGET_EFAULT; |
7807 | } else { |
7808 | ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5)); |
7809 | } |
7810 | unlock_user(p2, arg4, 0); |
7811 | unlock_user(p, arg2, 0); |
7812 | } |
7813 | return ret; |
7814 | #endif |
7815 | #ifdef TARGET_NR_mkdir |
7816 | case TARGET_NR_mkdir: |
7817 | if (!(p = lock_user_string(arg1))) |
7818 | return -TARGET_EFAULT; |
7819 | ret = get_errno(mkdir(p, arg2)); |
7820 | unlock_user(p, arg1, 0); |
7821 | return ret; |
7822 | #endif |
7823 | #if defined(TARGET_NR_mkdirat) |
7824 | case TARGET_NR_mkdirat: |
7825 | if (!(p = lock_user_string(arg2))) |
7826 | return -TARGET_EFAULT; |
7827 | ret = get_errno(mkdirat(arg1, p, arg3)); |
7828 | unlock_user(p, arg2, 0); |
7829 | return ret; |
7830 | #endif |
7831 | #ifdef TARGET_NR_rmdir |
7832 | case TARGET_NR_rmdir: |
7833 | if (!(p = lock_user_string(arg1))) |
7834 | return -TARGET_EFAULT; |
7835 | ret = get_errno(rmdir(p)); |
7836 | unlock_user(p, arg1, 0); |
7837 | return ret; |
7838 | #endif |
7839 | case TARGET_NR_dup: |
7840 | ret = get_errno(dup(arg1)); |
7841 | if (ret >= 0) { |
7842 | fd_trans_dup(arg1, ret); |
7843 | } |
7844 | return ret; |
7845 | #ifdef TARGET_NR_pipe |
7846 | case TARGET_NR_pipe: |
7847 | return do_pipe(cpu_env, arg1, 0, 0); |
7848 | #endif |
7849 | #ifdef TARGET_NR_pipe2 |
7850 | case TARGET_NR_pipe2: |
7851 | return do_pipe(cpu_env, arg1, |
7852 | target_to_host_bitmask(arg2, fcntl_flags_tbl), 1); |
7853 | #endif |
7854 | case TARGET_NR_times: |
7855 | { |
7856 | struct target_tms *tmsp; |
7857 | struct tms tms; |
7858 | ret = get_errno(times(&tms)); |
7859 | if (arg1) { |
7860 | tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); |
7861 | if (!tmsp) |
7862 | return -TARGET_EFAULT; |
7863 | tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime)); |
7864 | tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime)); |
7865 | tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime)); |
7866 | tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime)); |
7867 | } |
7868 | if (!is_error(ret)) |
7869 | ret = host_to_target_clock_t(ret); |
7870 | } |
7871 | return ret; |
7872 | case TARGET_NR_acct: |
7873 | if (arg1 == 0) { |
7874 | ret = get_errno(acct(NULL)); |
7875 | } else { |
7876 | if (!(p = lock_user_string(arg1))) { |
7877 | return -TARGET_EFAULT; |
7878 | } |
7879 | ret = get_errno(acct(path(p))); |
7880 | unlock_user(p, arg1, 0); |
7881 | } |
7882 | return ret; |
7883 | #ifdef TARGET_NR_umount2 |
7884 | case TARGET_NR_umount2: |
7885 | if (!(p = lock_user_string(arg1))) |
7886 | return -TARGET_EFAULT; |
7887 | ret = get_errno(umount2(p, arg2)); |
7888 | unlock_user(p, arg1, 0); |
7889 | return ret; |
7890 | #endif |
7891 | case TARGET_NR_ioctl: |
7892 | return do_ioctl(arg1, arg2, arg3); |
7893 | #ifdef TARGET_NR_fcntl |
7894 | case TARGET_NR_fcntl: |
7895 | return do_fcntl(arg1, arg2, arg3); |
7896 | #endif |
7897 | case TARGET_NR_setpgid: |
7898 | return get_errno(setpgid(arg1, arg2)); |
7899 | case TARGET_NR_umask: |
7900 | return get_errno(umask(arg1)); |
7901 | case TARGET_NR_chroot: |
7902 | if (!(p = lock_user_string(arg1))) |
7903 | return -TARGET_EFAULT; |
7904 | ret = get_errno(chroot(p)); |
7905 | unlock_user(p, arg1, 0); |
7906 | return ret; |
7907 | #ifdef TARGET_NR_dup2 |
7908 | case TARGET_NR_dup2: |
7909 | ret = get_errno(dup2(arg1, arg2)); |
7910 | if (ret >= 0) { |
7911 | fd_trans_dup(arg1, arg2); |
7912 | } |
7913 | return ret; |
7914 | #endif |
7915 | #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) |
7916 | case TARGET_NR_dup3: |
7917 | { |
7918 | int host_flags; |
7919 | |
7920 | if ((arg3 & ~TARGET_O_CLOEXEC) != 0) { |
7921 | return -EINVAL; |
7922 | } |
7923 | host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl); |
7924 | ret = get_errno(dup3(arg1, arg2, host_flags)); |
7925 | if (ret >= 0) { |
7926 | fd_trans_dup(arg1, arg2); |
7927 | } |
7928 | return ret; |
7929 | } |
7930 | #endif |
7931 | #ifdef TARGET_NR_getppid /* not on alpha */ |
7932 | case TARGET_NR_getppid: |
7933 | return get_errno(getppid()); |
7934 | #endif |
7935 | #ifdef TARGET_NR_getpgrp |
7936 | case TARGET_NR_getpgrp: |
7937 | return get_errno(getpgrp()); |
7938 | #endif |
7939 | case TARGET_NR_setsid: |
7940 | return get_errno(setsid()); |
7941 | #ifdef TARGET_NR_sigaction |
7942 | case TARGET_NR_sigaction: |
7943 | { |
7944 | #if defined(TARGET_ALPHA) |
7945 | struct target_sigaction act, oact, *pact = 0; |
7946 | struct target_old_sigaction *old_act; |
7947 | if (arg2) { |
7948 | if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
7949 | return -TARGET_EFAULT; |
7950 | act._sa_handler = old_act->_sa_handler; |
7951 | target_siginitset(&act.sa_mask, old_act->sa_mask); |
7952 | act.sa_flags = old_act->sa_flags; |
7953 | act.sa_restorer = 0; |
7954 | unlock_user_struct(old_act, arg2, 0); |
7955 | pact = &act; |
7956 | } |
7957 | ret = get_errno(do_sigaction(arg1, pact, &oact)); |
7958 | if (!is_error(ret) && arg3) { |
7959 | if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
7960 | return -TARGET_EFAULT; |
7961 | old_act->_sa_handler = oact._sa_handler; |
7962 | old_act->sa_mask = oact.sa_mask.sig[0]; |
7963 | old_act->sa_flags = oact.sa_flags; |
7964 | unlock_user_struct(old_act, arg3, 1); |
7965 | } |
7966 | #elif defined(TARGET_MIPS) |
7967 | struct target_sigaction act, oact, *pact, *old_act; |
7968 | |
7969 | if (arg2) { |
7970 | if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
7971 | return -TARGET_EFAULT; |
7972 | act._sa_handler = old_act->_sa_handler; |
7973 | target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); |
7974 | act.sa_flags = old_act->sa_flags; |
7975 | unlock_user_struct(old_act, arg2, 0); |
7976 | pact = &act; |
7977 | } else { |
7978 | pact = NULL; |
7979 | } |
7980 | |
7981 | ret = get_errno(do_sigaction(arg1, pact, &oact)); |
7982 | |
7983 | if (!is_error(ret) && arg3) { |
7984 | if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
7985 | return -TARGET_EFAULT; |
7986 | old_act->_sa_handler = oact._sa_handler; |
7987 | old_act->sa_flags = oact.sa_flags; |
7988 | old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; |
7989 | old_act->sa_mask.sig[1] = 0; |
7990 | old_act->sa_mask.sig[2] = 0; |
7991 | old_act->sa_mask.sig[3] = 0; |
7992 | unlock_user_struct(old_act, arg3, 1); |
7993 | } |
7994 | #else |
7995 | struct target_old_sigaction *old_act; |
7996 | struct target_sigaction act, oact, *pact; |
7997 | if (arg2) { |
7998 | if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
7999 | return -TARGET_EFAULT; |
8000 | act._sa_handler = old_act->_sa_handler; |
8001 | target_siginitset(&act.sa_mask, old_act->sa_mask); |
8002 | act.sa_flags = old_act->sa_flags; |
8003 | act.sa_restorer = old_act->sa_restorer; |
8004 | #ifdef TARGET_ARCH_HAS_KA_RESTORER |
8005 | act.ka_restorer = 0; |
8006 | #endif |
8007 | unlock_user_struct(old_act, arg2, 0); |
8008 | pact = &act; |
8009 | } else { |
8010 | pact = NULL; |
8011 | } |
8012 | ret = get_errno(do_sigaction(arg1, pact, &oact)); |
8013 | if (!is_error(ret) && arg3) { |
8014 | if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
8015 | return -TARGET_EFAULT; |
8016 | old_act->_sa_handler = oact._sa_handler; |
8017 | old_act->sa_mask = oact.sa_mask.sig[0]; |
8018 | old_act->sa_flags = oact.sa_flags; |
8019 | old_act->sa_restorer = oact.sa_restorer; |
8020 | unlock_user_struct(old_act, arg3, 1); |
8021 | } |
8022 | #endif |
8023 | } |
8024 | return ret; |
8025 | #endif |
8026 | case TARGET_NR_rt_sigaction: |
8027 | { |
8028 | #if defined(TARGET_ALPHA) |
8029 | /* For Alpha and SPARC this is a 5 argument syscall, with |
8030 | * a 'restorer' parameter which must be copied into the |
8031 | * sa_restorer field of the sigaction struct. |
8032 | * For Alpha that 'restorer' is arg5; for SPARC it is arg4, |
8033 | * and arg5 is the sigsetsize. |
8034 | * Alpha also has a separate rt_sigaction struct that it uses |
8035 | * here; SPARC uses the usual sigaction struct. |
8036 | */ |
8037 | struct target_rt_sigaction *rt_act; |
8038 | struct target_sigaction act, oact, *pact = 0; |
8039 | |
8040 | if (arg4 != sizeof(target_sigset_t)) { |
8041 | return -TARGET_EINVAL; |
8042 | } |
8043 | if (arg2) { |
8044 | if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) |
8045 | return -TARGET_EFAULT; |
8046 | act._sa_handler = rt_act->_sa_handler; |
8047 | act.sa_mask = rt_act->sa_mask; |
8048 | act.sa_flags = rt_act->sa_flags; |
8049 | act.sa_restorer = arg5; |
8050 | unlock_user_struct(rt_act, arg2, 0); |
8051 | pact = &act; |
8052 | } |
8053 | ret = get_errno(do_sigaction(arg1, pact, &oact)); |
8054 | if (!is_error(ret) && arg3) { |
8055 | if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) |
8056 | return -TARGET_EFAULT; |
8057 | rt_act->_sa_handler = oact._sa_handler; |
8058 | rt_act->sa_mask = oact.sa_mask; |
8059 | rt_act->sa_flags = oact.sa_flags; |
8060 | unlock_user_struct(rt_act, arg3, 1); |
8061 | } |
8062 | #else |
8063 | #ifdef TARGET_SPARC |
8064 | target_ulong restorer = arg4; |
8065 | target_ulong sigsetsize = arg5; |
8066 | #else |
8067 | target_ulong sigsetsize = arg4; |
8068 | #endif |
8069 | struct target_sigaction *act; |
8070 | struct target_sigaction *oact; |
8071 | |
8072 | if (sigsetsize != sizeof(target_sigset_t)) { |
8073 | return -TARGET_EINVAL; |
8074 | } |
8075 | if (arg2) { |
8076 | if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) { |
8077 | return -TARGET_EFAULT; |
8078 | } |
8079 | #ifdef TARGET_ARCH_HAS_KA_RESTORER |
8080 | act->ka_restorer = restorer; |
8081 | #endif |
8082 | } else { |
8083 | act = NULL; |
8084 | } |
8085 | if (arg3) { |
8086 | if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { |
8087 | ret = -TARGET_EFAULT; |
8088 | goto rt_sigaction_fail; |
8089 | } |
8090 | } else |
8091 | oact = NULL; |
8092 | ret = get_errno(do_sigaction(arg1, act, oact)); |
8093 | rt_sigaction_fail: |
8094 | if (act) |
8095 | unlock_user_struct(act, arg2, 0); |
8096 | if (oact) |
8097 | unlock_user_struct(oact, arg3, 1); |
8098 | #endif |
8099 | } |
8100 | return ret; |
8101 | #ifdef TARGET_NR_sgetmask /* not on alpha */ |
8102 | case TARGET_NR_sgetmask: |
8103 | { |
8104 | sigset_t cur_set; |
8105 | abi_ulong target_set; |
8106 | ret = do_sigprocmask(0, NULL, &cur_set); |
8107 | if (!ret) { |
8108 | host_to_target_old_sigset(&target_set, &cur_set); |
8109 | ret = target_set; |
8110 | } |
8111 | } |
8112 | return ret; |
8113 | #endif |
8114 | #ifdef TARGET_NR_ssetmask /* not on alpha */ |
8115 | case TARGET_NR_ssetmask: |
8116 | { |
8117 | sigset_t set, oset; |
8118 | abi_ulong target_set = arg1; |
8119 | target_to_host_old_sigset(&set, &target_set); |
8120 | ret = do_sigprocmask(SIG_SETMASK, &set, &oset); |
8121 | if (!ret) { |
8122 | host_to_target_old_sigset(&target_set, &oset); |
8123 | ret = target_set; |
8124 | } |
8125 | } |
8126 | return ret; |
8127 | #endif |
8128 | #ifdef TARGET_NR_sigprocmask |
8129 | case TARGET_NR_sigprocmask: |
8130 | { |
8131 | #if defined(TARGET_ALPHA) |
8132 | sigset_t set, oldset; |
8133 | abi_ulong mask; |
8134 | int how; |
8135 | |
8136 | switch (arg1) { |
8137 | case TARGET_SIG_BLOCK: |
8138 | how = SIG_BLOCK; |
8139 | break; |
8140 | case TARGET_SIG_UNBLOCK: |
8141 | how = SIG_UNBLOCK; |
8142 | break; |
8143 | case TARGET_SIG_SETMASK: |
8144 | how = SIG_SETMASK; |
8145 | break; |
8146 | default: |
8147 | return -TARGET_EINVAL; |
8148 | } |
8149 | mask = arg2; |
8150 | target_to_host_old_sigset(&set, &mask); |
8151 | |
8152 | ret = do_sigprocmask(how, &set, &oldset); |
8153 | if (!is_error(ret)) { |
8154 | host_to_target_old_sigset(&mask, &oldset); |
8155 | ret = mask; |
8156 | ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */ |
8157 | } |
8158 | #else |
8159 | sigset_t set, oldset, *set_ptr; |
8160 | int how; |
8161 | |
8162 | if (arg2) { |
8163 | switch (arg1) { |
8164 | case TARGET_SIG_BLOCK: |
8165 | how = SIG_BLOCK; |
8166 | break; |
8167 | case TARGET_SIG_UNBLOCK: |
8168 | how = SIG_UNBLOCK; |
8169 | break; |
8170 | case TARGET_SIG_SETMASK: |
8171 | how = SIG_SETMASK; |
8172 | break; |
8173 | default: |
8174 | return -TARGET_EINVAL; |
8175 | } |
8176 | if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
8177 | return -TARGET_EFAULT; |
8178 | target_to_host_old_sigset(&set, p); |
8179 | unlock_user(p, arg2, 0); |
8180 | set_ptr = &set; |
8181 | } else { |
8182 | how = 0; |
8183 | set_ptr = NULL; |
8184 | } |
8185 | ret = do_sigprocmask(how, set_ptr, &oldset); |
8186 | if (!is_error(ret) && arg3) { |
8187 | if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
8188 | return -TARGET_EFAULT; |
8189 | host_to_target_old_sigset(p, &oldset); |
8190 | unlock_user(p, arg3, sizeof(target_sigset_t)); |
8191 | } |
8192 | #endif |
8193 | } |
8194 | return ret; |
8195 | #endif |
8196 | case TARGET_NR_rt_sigprocmask: |
8197 | { |
8198 | int how = arg1; |
8199 | sigset_t set, oldset, *set_ptr; |
8200 | |
8201 | if (arg4 != sizeof(target_sigset_t)) { |
8202 | return -TARGET_EINVAL; |
8203 | } |
8204 | |
8205 | if (arg2) { |
8206 | switch(how) { |
8207 | case TARGET_SIG_BLOCK: |
8208 | how = SIG_BLOCK; |
8209 | break; |
8210 | case TARGET_SIG_UNBLOCK: |
8211 | how = SIG_UNBLOCK; |
8212 | break; |
8213 | case TARGET_SIG_SETMASK: |
8214 | how = SIG_SETMASK; |
8215 | break; |
8216 | default: |
8217 | return -TARGET_EINVAL; |
8218 | } |
8219 | if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
8220 | return -TARGET_EFAULT; |
8221 | target_to_host_sigset(&set, p); |
8222 | unlock_user(p, arg2, 0); |
8223 | set_ptr = &set; |
8224 | } else { |
8225 | how = 0; |
8226 | set_ptr = NULL; |
8227 | } |
8228 | ret = do_sigprocmask(how, set_ptr, &oldset); |
8229 | if (!is_error(ret) && arg3) { |
8230 | if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
8231 | return -TARGET_EFAULT; |
8232 | host_to_target_sigset(p, &oldset); |
8233 | unlock_user(p, arg3, sizeof(target_sigset_t)); |
8234 | } |
8235 | } |
8236 | return ret; |
8237 | #ifdef TARGET_NR_sigpending |
8238 | case TARGET_NR_sigpending: |
8239 | { |
8240 | sigset_t set; |
8241 | ret = get_errno(sigpending(&set)); |
8242 | if (!is_error(ret)) { |
8243 | if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) |
8244 | return -TARGET_EFAULT; |
8245 | host_to_target_old_sigset(p, &set); |
8246 | unlock_user(p, arg1, sizeof(target_sigset_t)); |
8247 | } |
8248 | } |
8249 | return ret; |
8250 | #endif |
8251 | case TARGET_NR_rt_sigpending: |
8252 | { |
8253 | sigset_t set; |
8254 | |
8255 | /* Yes, this check is >, not != like most. We follow the kernel's |
8256 | * logic and it does it like this because it implements |
8257 | * NR_sigpending through the same code path, and in that case |
8258 | * the old_sigset_t is smaller in size. |
8259 | */ |
8260 | if (arg2 > sizeof(target_sigset_t)) { |
8261 | return -TARGET_EINVAL; |
8262 | } |
8263 | |
8264 | ret = get_errno(sigpending(&set)); |
8265 | if (!is_error(ret)) { |
8266 | if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) |
8267 | return -TARGET_EFAULT; |
8268 | host_to_target_sigset(p, &set); |
8269 | unlock_user(p, arg1, sizeof(target_sigset_t)); |
8270 | } |
8271 | } |
8272 | return ret; |
8273 | #ifdef TARGET_NR_sigsuspend |
8274 | case TARGET_NR_sigsuspend: |
8275 | { |
8276 | TaskState *ts = cpu->opaque; |
8277 | #if defined(TARGET_ALPHA) |
8278 | abi_ulong mask = arg1; |
8279 | target_to_host_old_sigset(&ts->sigsuspend_mask, &mask); |
8280 | #else |
8281 | if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
8282 | return -TARGET_EFAULT; |
8283 | target_to_host_old_sigset(&ts->sigsuspend_mask, p); |
8284 | unlock_user(p, arg1, 0); |
8285 | #endif |
8286 | ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, |
8287 | SIGSET_T_SIZE)); |
8288 | if (ret != -TARGET_ERESTARTSYS) { |
8289 | ts->in_sigsuspend = 1; |
8290 | } |
8291 | } |
8292 | return ret; |
8293 | #endif |
8294 | case TARGET_NR_rt_sigsuspend: |
8295 | { |
8296 | TaskState *ts = cpu->opaque; |
8297 | |
8298 | if (arg2 != sizeof(target_sigset_t)) { |
8299 | return -TARGET_EINVAL; |
8300 | } |
8301 | if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
8302 | return -TARGET_EFAULT; |
8303 | target_to_host_sigset(&ts->sigsuspend_mask, p); |
8304 | unlock_user(p, arg1, 0); |
8305 | ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, |
8306 | SIGSET_T_SIZE)); |
8307 | if (ret != -TARGET_ERESTARTSYS) { |
8308 | ts->in_sigsuspend = 1; |
8309 | } |
8310 | } |
8311 | return ret; |
8312 | case TARGET_NR_rt_sigtimedwait: |
8313 | { |
8314 | sigset_t set; |
8315 | struct timespec uts, *puts; |
8316 | siginfo_t uinfo; |
8317 | |
8318 | if (arg4 != sizeof(target_sigset_t)) { |
8319 | return -TARGET_EINVAL; |
8320 | } |
8321 | |
8322 | if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
8323 | return -TARGET_EFAULT; |
8324 | target_to_host_sigset(&set, p); |
8325 | unlock_user(p, arg1, 0); |
8326 | if (arg3) { |
8327 | puts = &uts; |
8328 | target_to_host_timespec(puts, arg3); |
8329 | } else { |
8330 | puts = NULL; |
8331 | } |
8332 | ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts, |
8333 | SIGSET_T_SIZE)); |
8334 | if (!is_error(ret)) { |
8335 | if (arg2) { |
8336 | p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), |
8337 | 0); |
8338 | if (!p) { |
8339 | return -TARGET_EFAULT; |
8340 | } |
8341 | host_to_target_siginfo(p, &uinfo); |
8342 | unlock_user(p, arg2, sizeof(target_siginfo_t)); |
8343 | } |
8344 | ret = host_to_target_signal(ret); |
8345 | } |
8346 | } |
8347 | return ret; |
8348 | case TARGET_NR_rt_sigqueueinfo: |
8349 | { |
8350 | siginfo_t uinfo; |
8351 | |
8352 | p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1); |
8353 | if (!p) { |
8354 | return -TARGET_EFAULT; |
8355 | } |
8356 | target_to_host_siginfo(&uinfo, p); |
8357 | unlock_user(p, arg3, 0); |
8358 | ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); |
8359 | } |
8360 | return ret; |
8361 | case TARGET_NR_rt_tgsigqueueinfo: |
8362 | { |
8363 | siginfo_t uinfo; |
8364 | |
8365 | p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1); |
8366 | if (!p) { |
8367 | return -TARGET_EFAULT; |
8368 | } |
8369 | target_to_host_siginfo(&uinfo, p); |
8370 | unlock_user(p, arg4, 0); |
8371 | ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo)); |
8372 | } |
8373 | return ret; |
8374 | #ifdef TARGET_NR_sigreturn |
8375 | case TARGET_NR_sigreturn: |
8376 | if (block_signals()) { |
8377 | return -TARGET_ERESTARTSYS; |
8378 | } |
8379 | return do_sigreturn(cpu_env); |
8380 | #endif |
8381 | case TARGET_NR_rt_sigreturn: |
8382 | if (block_signals()) { |
8383 | return -TARGET_ERESTARTSYS; |
8384 | } |
8385 | return do_rt_sigreturn(cpu_env); |
8386 | case TARGET_NR_sethostname: |
8387 | if (!(p = lock_user_string(arg1))) |
8388 | return -TARGET_EFAULT; |
8389 | ret = get_errno(sethostname(p, arg2)); |
8390 | unlock_user(p, arg1, 0); |
8391 | return ret; |
8392 | #ifdef TARGET_NR_setrlimit |
8393 | case TARGET_NR_setrlimit: |
8394 | { |
8395 | int resource = target_to_host_resource(arg1); |
8396 | struct target_rlimit *target_rlim; |
8397 | struct rlimit rlim; |
8398 | if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) |
8399 | return -TARGET_EFAULT; |
8400 | rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur); |
8401 | rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max); |
8402 | unlock_user_struct(target_rlim, arg2, 0); |
8403 | /* |
8404 | * If we just passed through resource limit settings for memory then |
8405 | * they would also apply to QEMU's own allocations, and QEMU will |
8406 | * crash or hang or die if its allocations fail. Ideally we would |
8407 | * track the guest allocations in QEMU and apply the limits ourselves. |
8408 | * For now, just tell the guest the call succeeded but don't actually |
8409 | * limit anything. |
8410 | */ |
8411 | if (resource != RLIMIT_AS && |
8412 | resource != RLIMIT_DATA && |
8413 | resource != RLIMIT_STACK) { |
8414 | return get_errno(setrlimit(resource, &rlim)); |
8415 | } else { |
8416 | return 0; |
8417 | } |
8418 | } |
8419 | #endif |
8420 | #ifdef TARGET_NR_getrlimit |
8421 | case TARGET_NR_getrlimit: |
8422 | { |
8423 | int resource = target_to_host_resource(arg1); |
8424 | struct target_rlimit *target_rlim; |
8425 | struct rlimit rlim; |
8426 | |
8427 | ret = get_errno(getrlimit(resource, &rlim)); |
8428 | if (!is_error(ret)) { |
8429 | if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) |
8430 | return -TARGET_EFAULT; |
8431 | target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); |
8432 | target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); |
8433 | unlock_user_struct(target_rlim, arg2, 1); |
8434 | } |
8435 | } |
8436 | return ret; |
8437 | #endif |
8438 | case TARGET_NR_getrusage: |
8439 | { |
8440 | struct rusage rusage; |
8441 | ret = get_errno(getrusage(arg1, &rusage)); |
8442 | if (!is_error(ret)) { |
8443 | ret = host_to_target_rusage(arg2, &rusage); |
8444 | } |
8445 | } |
8446 | return ret; |
8447 | case TARGET_NR_gettimeofday: |
8448 | { |
8449 | struct timeval tv; |
8450 | ret = get_errno(gettimeofday(&tv, NULL)); |
8451 | if (!is_error(ret)) { |
8452 | if (copy_to_user_timeval(arg1, &tv)) |
8453 | return -TARGET_EFAULT; |
8454 | } |
8455 | } |
8456 | return ret; |
8457 | case TARGET_NR_settimeofday: |
8458 | { |
8459 | struct timeval tv, *ptv = NULL; |
8460 | struct timezone tz, *ptz = NULL; |
8461 | |
8462 | if (arg1) { |
8463 | if (copy_from_user_timeval(&tv, arg1)) { |
8464 | return -TARGET_EFAULT; |
8465 | } |
8466 | ptv = &tv; |
8467 | } |
8468 | |
8469 | if (arg2) { |
8470 | if (copy_from_user_timezone(&tz, arg2)) { |
8471 | return -TARGET_EFAULT; |
8472 | } |
8473 | ptz = &tz; |
8474 | } |
8475 | |
8476 | return get_errno(settimeofday(ptv, ptz)); |
8477 | } |
8478 | #if defined(TARGET_NR_select) |
8479 | case TARGET_NR_select: |
8480 | #if defined(TARGET_WANT_NI_OLD_SELECT) |
8481 | /* some architectures used to have old_select here |
8482 | * but now ENOSYS it. |
8483 | */ |
8484 | ret = -TARGET_ENOSYS; |
8485 | #elif defined(TARGET_WANT_OLD_SYS_SELECT) |
8486 | ret = do_old_select(arg1); |
8487 | #else |
8488 | ret = do_select(arg1, arg2, arg3, arg4, arg5); |
8489 | #endif |
8490 | return ret; |
8491 | #endif |
8492 | #ifdef TARGET_NR_pselect6 |
8493 | case TARGET_NR_pselect6: |
8494 | { |
8495 | abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr; |
8496 | fd_set rfds, wfds, efds; |
8497 | fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; |
8498 | struct timespec ts, *ts_ptr; |
8499 | |
8500 | /* |
8501 | * The 6th arg is actually two args smashed together, |
8502 | * so we cannot use the C library. |
8503 | */ |
8504 | sigset_t set; |
8505 | struct { |
8506 | sigset_t *set; |
8507 | size_t size; |
8508 | } sig, *sig_ptr; |
8509 | |
8510 | abi_ulong arg_sigset, arg_sigsize, *arg7; |
8511 | target_sigset_t *target_sigset; |
8512 | |
8513 | n = arg1; |
8514 | rfd_addr = arg2; |
8515 | wfd_addr = arg3; |
8516 | efd_addr = arg4; |
8517 | ts_addr = arg5; |
8518 | |
8519 | ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); |
8520 | if (ret) { |
8521 | return ret; |
8522 | } |
8523 | ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); |
8524 | if (ret) { |
8525 | return ret; |
8526 | } |
8527 | ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); |
8528 | if (ret) { |
8529 | return ret; |
8530 | } |
8531 | |
8532 | /* |
8533 | * This takes a timespec, and not a timeval, so we cannot |
8534 | * use the do_select() helper ... |
8535 | */ |
8536 | if (ts_addr) { |
8537 | if (target_to_host_timespec(&ts, ts_addr)) { |
8538 | return -TARGET_EFAULT; |
8539 | } |
8540 | ts_ptr = &ts; |
8541 | } else { |
8542 | ts_ptr = NULL; |
8543 | } |
8544 | |
8545 | /* Extract the two packed args for the sigset */ |
8546 | if (arg6) { |
8547 | sig_ptr = &sig; |
8548 | sig.size = SIGSET_T_SIZE; |
8549 | |
8550 | arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1); |
8551 | if (!arg7) { |
8552 | return -TARGET_EFAULT; |
8553 | } |
8554 | arg_sigset = tswapal(arg7[0]); |
8555 | arg_sigsize = tswapal(arg7[1]); |
8556 | unlock_user(arg7, arg6, 0); |
8557 | |
8558 | if (arg_sigset) { |
8559 | sig.set = &set; |
8560 | if (arg_sigsize != sizeof(*target_sigset)) { |
8561 | /* Like the kernel, we enforce correct size sigsets */ |
8562 | return -TARGET_EINVAL; |
8563 | } |
8564 | target_sigset = lock_user(VERIFY_READ, arg_sigset, |
8565 | sizeof(*target_sigset), 1); |
8566 | if (!target_sigset) { |
8567 | return -TARGET_EFAULT; |
8568 | } |
8569 | target_to_host_sigset(&set, target_sigset); |
8570 | unlock_user(target_sigset, arg_sigset, 0); |
8571 | } else { |
8572 | sig.set = NULL; |
8573 | } |
8574 | } else { |
8575 | sig_ptr = NULL; |
8576 | } |
8577 | |
8578 | ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, |
8579 | ts_ptr, sig_ptr)); |
8580 | |
8581 | if (!is_error(ret)) { |
8582 | if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) |
8583 | return -TARGET_EFAULT; |
8584 | if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) |
8585 | return -TARGET_EFAULT; |
8586 | if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) |
8587 | return -TARGET_EFAULT; |
8588 | |
8589 | if (ts_addr && host_to_target_timespec(ts_addr, &ts)) |
8590 | return -TARGET_EFAULT; |
8591 | } |
8592 | } |
8593 | return ret; |
8594 | #endif |
8595 | #ifdef TARGET_NR_symlink |
8596 | case TARGET_NR_symlink: |
8597 | { |
8598 | void *p2; |
8599 | p = lock_user_string(arg1); |
8600 | p2 = lock_user_string(arg2); |
8601 | if (!p || !p2) |
8602 | ret = -TARGET_EFAULT; |
8603 | else |
8604 | ret = get_errno(symlink(p, p2)); |
8605 | unlock_user(p2, arg2, 0); |
8606 | unlock_user(p, arg1, 0); |
8607 | } |
8608 | return ret; |
8609 | #endif |
8610 | #if defined(TARGET_NR_symlinkat) |
8611 | case TARGET_NR_symlinkat: |
8612 | { |
8613 | void *p2; |
8614 | p = lock_user_string(arg1); |
8615 | p2 = lock_user_string(arg3); |
8616 | if (!p || !p2) |
8617 | ret = -TARGET_EFAULT; |
8618 | else |
8619 | ret = get_errno(symlinkat(p, arg2, p2)); |
8620 | unlock_user(p2, arg3, 0); |
8621 | unlock_user(p, arg1, 0); |
8622 | } |
8623 | return ret; |
8624 | #endif |
8625 | #ifdef TARGET_NR_readlink |
8626 | case TARGET_NR_readlink: |
8627 | { |
8628 | void *p2; |
8629 | p = lock_user_string(arg1); |
8630 | p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
8631 | if (!p || !p2) { |
8632 | ret = -TARGET_EFAULT; |
8633 | } else if (!arg3) { |
8634 | /* Short circuit this for the magic exe check. */ |
8635 | ret = -TARGET_EINVAL; |
8636 | } else if (is_proc_myself((const char *)p, "exe" )) { |
8637 | char real[PATH_MAX], *temp; |
8638 | temp = realpath(exec_path, real); |
8639 | /* Return value is # of bytes that we wrote to the buffer. */ |
8640 | if (temp == NULL) { |
8641 | ret = get_errno(-1); |
8642 | } else { |
8643 | /* Don't worry about sign mismatch as earlier mapping |
8644 | * logic would have thrown a bad address error. */ |
8645 | ret = MIN(strlen(real), arg3); |
8646 | /* We cannot NUL terminate the string. */ |
8647 | memcpy(p2, real, ret); |
8648 | } |
8649 | } else { |
8650 | ret = get_errno(readlink(path(p), p2, arg3)); |
8651 | } |
8652 | unlock_user(p2, arg2, ret); |
8653 | unlock_user(p, arg1, 0); |
8654 | } |
8655 | return ret; |
8656 | #endif |
8657 | #if defined(TARGET_NR_readlinkat) |
8658 | case TARGET_NR_readlinkat: |
8659 | { |
8660 | void *p2; |
8661 | p = lock_user_string(arg2); |
8662 | p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
8663 | if (!p || !p2) { |
8664 | ret = -TARGET_EFAULT; |
8665 | } else if (is_proc_myself((const char *)p, "exe" )) { |
8666 | char real[PATH_MAX], *temp; |
8667 | temp = realpath(exec_path, real); |
8668 | ret = temp == NULL ? get_errno(-1) : strlen(real) ; |
8669 | snprintf((char *)p2, arg4, "%s" , real); |
8670 | } else { |
8671 | ret = get_errno(readlinkat(arg1, path(p), p2, arg4)); |
8672 | } |
8673 | unlock_user(p2, arg3, ret); |
8674 | unlock_user(p, arg2, 0); |
8675 | } |
8676 | return ret; |
8677 | #endif |
8678 | #ifdef TARGET_NR_swapon |
8679 | case TARGET_NR_swapon: |
8680 | if (!(p = lock_user_string(arg1))) |
8681 | return -TARGET_EFAULT; |
8682 | ret = get_errno(swapon(p, arg2)); |
8683 | unlock_user(p, arg1, 0); |
8684 | return ret; |
8685 | #endif |
8686 | case TARGET_NR_reboot: |
8687 | if (arg3 == LINUX_REBOOT_CMD_RESTART2) { |
8688 | /* arg4 must be ignored in all other cases */ |
8689 | p = lock_user_string(arg4); |
8690 | if (!p) { |
8691 | return -TARGET_EFAULT; |
8692 | } |
8693 | ret = get_errno(reboot(arg1, arg2, arg3, p)); |
8694 | unlock_user(p, arg4, 0); |
8695 | } else { |
8696 | ret = get_errno(reboot(arg1, arg2, arg3, NULL)); |
8697 | } |
8698 | return ret; |
8699 | #ifdef TARGET_NR_mmap |
8700 | case TARGET_NR_mmap: |
8701 | #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \ |
8702 | (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \ |
8703 | defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \ |
8704 | || defined(TARGET_S390X) |
8705 | { |
8706 | abi_ulong *v; |
8707 | abi_ulong v1, v2, v3, v4, v5, v6; |
8708 | if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) |
8709 | return -TARGET_EFAULT; |
8710 | v1 = tswapal(v[0]); |
8711 | v2 = tswapal(v[1]); |
8712 | v3 = tswapal(v[2]); |
8713 | v4 = tswapal(v[3]); |
8714 | v5 = tswapal(v[4]); |
8715 | v6 = tswapal(v[5]); |
8716 | unlock_user(v, arg1, 0); |
8717 | ret = get_errno(target_mmap(v1, v2, v3, |
8718 | target_to_host_bitmask(v4, mmap_flags_tbl), |
8719 | v5, v6)); |
8720 | } |
8721 | #else |
8722 | ret = get_errno(target_mmap(arg1, arg2, arg3, |
8723 | target_to_host_bitmask(arg4, mmap_flags_tbl), |
8724 | arg5, |
8725 | arg6)); |
8726 | #endif |
8727 | return ret; |
8728 | #endif |
8729 | #ifdef TARGET_NR_mmap2 |
8730 | case TARGET_NR_mmap2: |
8731 | #ifndef MMAP_SHIFT |
8732 | #define MMAP_SHIFT 12 |
8733 | #endif |
8734 | ret = target_mmap(arg1, arg2, arg3, |
8735 | target_to_host_bitmask(arg4, mmap_flags_tbl), |
8736 | arg5, arg6 << MMAP_SHIFT); |
8737 | return get_errno(ret); |
8738 | #endif |
8739 | case TARGET_NR_munmap: |
8740 | return get_errno(target_munmap(arg1, arg2)); |
8741 | case TARGET_NR_mprotect: |
8742 | { |
8743 | TaskState *ts = cpu->opaque; |
8744 | /* Special hack to detect libc making the stack executable. */ |
8745 | if ((arg3 & PROT_GROWSDOWN) |
8746 | && arg1 >= ts->info->stack_limit |
8747 | && arg1 <= ts->info->start_stack) { |
8748 | arg3 &= ~PROT_GROWSDOWN; |
8749 | arg2 = arg2 + arg1 - ts->info->stack_limit; |
8750 | arg1 = ts->info->stack_limit; |
8751 | } |
8752 | } |
8753 | return get_errno(target_mprotect(arg1, arg2, arg3)); |
8754 | #ifdef TARGET_NR_mremap |
8755 | case TARGET_NR_mremap: |
8756 | return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); |
8757 | #endif |
8758 | /* ??? msync/mlock/munlock are broken for softmmu. */ |
8759 | #ifdef TARGET_NR_msync |
8760 | case TARGET_NR_msync: |
8761 | return get_errno(msync(g2h(arg1), arg2, arg3)); |
8762 | #endif |
8763 | #ifdef TARGET_NR_mlock |
8764 | case TARGET_NR_mlock: |
8765 | return get_errno(mlock(g2h(arg1), arg2)); |
8766 | #endif |
8767 | #ifdef TARGET_NR_munlock |
8768 | case TARGET_NR_munlock: |
8769 | return get_errno(munlock(g2h(arg1), arg2)); |
8770 | #endif |
8771 | #ifdef TARGET_NR_mlockall |
8772 | case TARGET_NR_mlockall: |
8773 | return get_errno(mlockall(target_to_host_mlockall_arg(arg1))); |
8774 | #endif |
8775 | #ifdef TARGET_NR_munlockall |
8776 | case TARGET_NR_munlockall: |
8777 | return get_errno(munlockall()); |
8778 | #endif |
8779 | #ifdef TARGET_NR_truncate |
8780 | case TARGET_NR_truncate: |
8781 | if (!(p = lock_user_string(arg1))) |
8782 | return -TARGET_EFAULT; |
8783 | ret = get_errno(truncate(p, arg2)); |
8784 | unlock_user(p, arg1, 0); |
8785 | return ret; |
8786 | #endif |
8787 | #ifdef TARGET_NR_ftruncate |
8788 | case TARGET_NR_ftruncate: |
8789 | return get_errno(ftruncate(arg1, arg2)); |
8790 | #endif |
8791 | case TARGET_NR_fchmod: |
8792 | return get_errno(fchmod(arg1, arg2)); |
8793 | #if defined(TARGET_NR_fchmodat) |
8794 | case TARGET_NR_fchmodat: |
8795 | if (!(p = lock_user_string(arg2))) |
8796 | return -TARGET_EFAULT; |
8797 | ret = get_errno(fchmodat(arg1, p, arg3, 0)); |
8798 | unlock_user(p, arg2, 0); |
8799 | return ret; |
8800 | #endif |
8801 | case TARGET_NR_getpriority: |
8802 | /* Note that negative values are valid for getpriority, so we must |
8803 | differentiate based on errno settings. */ |
8804 | errno = 0; |
8805 | ret = getpriority(arg1, arg2); |
8806 | if (ret == -1 && errno != 0) { |
8807 | return -host_to_target_errno(errno); |
8808 | } |
8809 | #ifdef TARGET_ALPHA |
8810 | /* Return value is the unbiased priority. Signal no error. */ |
8811 | ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; |
8812 | #else |
8813 | /* Return value is a biased priority to avoid negative numbers. */ |
8814 | ret = 20 - ret; |
8815 | #endif |
8816 | return ret; |
8817 | case TARGET_NR_setpriority: |
8818 | return get_errno(setpriority(arg1, arg2, arg3)); |
8819 | #ifdef TARGET_NR_statfs |
8820 | case TARGET_NR_statfs: |
8821 | if (!(p = lock_user_string(arg1))) { |
8822 | return -TARGET_EFAULT; |
8823 | } |
8824 | ret = get_errno(statfs(path(p), &stfs)); |
8825 | unlock_user(p, arg1, 0); |
8826 | convert_statfs: |
8827 | if (!is_error(ret)) { |
8828 | struct target_statfs *target_stfs; |
8829 | |
8830 | if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) |
8831 | return -TARGET_EFAULT; |
8832 | __put_user(stfs.f_type, &target_stfs->f_type); |
8833 | __put_user(stfs.f_bsize, &target_stfs->f_bsize); |
8834 | __put_user(stfs.f_blocks, &target_stfs->f_blocks); |
8835 | __put_user(stfs.f_bfree, &target_stfs->f_bfree); |
8836 | __put_user(stfs.f_bavail, &target_stfs->f_bavail); |
8837 | __put_user(stfs.f_files, &target_stfs->f_files); |
8838 | __put_user(stfs.f_ffree, &target_stfs->f_ffree); |
8839 | __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); |
8840 | __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); |
8841 | __put_user(stfs.f_namelen, &target_stfs->f_namelen); |
8842 | __put_user(stfs.f_frsize, &target_stfs->f_frsize); |
8843 | #ifdef _STATFS_F_FLAGS |
8844 | __put_user(stfs.f_flags, &target_stfs->f_flags); |
8845 | #else |
8846 | __put_user(0, &target_stfs->f_flags); |
8847 | #endif |
8848 | memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); |
8849 | unlock_user_struct(target_stfs, arg2, 1); |
8850 | } |
8851 | return ret; |
8852 | #endif |
8853 | #ifdef TARGET_NR_fstatfs |
8854 | case TARGET_NR_fstatfs: |
8855 | ret = get_errno(fstatfs(arg1, &stfs)); |
8856 | goto convert_statfs; |
8857 | #endif |
8858 | #ifdef TARGET_NR_statfs64 |
8859 | case TARGET_NR_statfs64: |
8860 | if (!(p = lock_user_string(arg1))) { |
8861 | return -TARGET_EFAULT; |
8862 | } |
8863 | ret = get_errno(statfs(path(p), &stfs)); |
8864 | unlock_user(p, arg1, 0); |
8865 | convert_statfs64: |
8866 | if (!is_error(ret)) { |
8867 | struct target_statfs64 *target_stfs; |
8868 | |
8869 | if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) |
8870 | return -TARGET_EFAULT; |
8871 | __put_user(stfs.f_type, &target_stfs->f_type); |
8872 | __put_user(stfs.f_bsize, &target_stfs->f_bsize); |
8873 | __put_user(stfs.f_blocks, &target_stfs->f_blocks); |
8874 | __put_user(stfs.f_bfree, &target_stfs->f_bfree); |
8875 | __put_user(stfs.f_bavail, &target_stfs->f_bavail); |
8876 | __put_user(stfs.f_files, &target_stfs->f_files); |
8877 | __put_user(stfs.f_ffree, &target_stfs->f_ffree); |
8878 | __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); |
8879 | __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); |
8880 | __put_user(stfs.f_namelen, &target_stfs->f_namelen); |
8881 | __put_user(stfs.f_frsize, &target_stfs->f_frsize); |
8882 | memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); |
8883 | unlock_user_struct(target_stfs, arg3, 1); |
8884 | } |
8885 | return ret; |
8886 | case TARGET_NR_fstatfs64: |
8887 | ret = get_errno(fstatfs(arg1, &stfs)); |
8888 | goto convert_statfs64; |
8889 | #endif |
8890 | #ifdef TARGET_NR_socketcall |
8891 | case TARGET_NR_socketcall: |
8892 | return do_socketcall(arg1, arg2); |
8893 | #endif |
8894 | #ifdef TARGET_NR_accept |
8895 | case TARGET_NR_accept: |
8896 | return do_accept4(arg1, arg2, arg3, 0); |
8897 | #endif |
8898 | #ifdef TARGET_NR_accept4 |
8899 | case TARGET_NR_accept4: |
8900 | return do_accept4(arg1, arg2, arg3, arg4); |
8901 | #endif |
8902 | #ifdef TARGET_NR_bind |
8903 | case TARGET_NR_bind: |
8904 | return do_bind(arg1, arg2, arg3); |
8905 | #endif |
8906 | #ifdef TARGET_NR_connect |
8907 | case TARGET_NR_connect: |
8908 | return do_connect(arg1, arg2, arg3); |
8909 | #endif |
8910 | #ifdef TARGET_NR_getpeername |
8911 | case TARGET_NR_getpeername: |
8912 | return do_getpeername(arg1, arg2, arg3); |
8913 | #endif |
8914 | #ifdef TARGET_NR_getsockname |
8915 | case TARGET_NR_getsockname: |
8916 | return do_getsockname(arg1, arg2, arg3); |
8917 | #endif |
8918 | #ifdef TARGET_NR_getsockopt |
8919 | case TARGET_NR_getsockopt: |
8920 | return do_getsockopt(arg1, arg2, arg3, arg4, arg5); |
8921 | #endif |
8922 | #ifdef TARGET_NR_listen |
8923 | case TARGET_NR_listen: |
8924 | return get_errno(listen(arg1, arg2)); |
8925 | #endif |
8926 | #ifdef TARGET_NR_recv |
8927 | case TARGET_NR_recv: |
8928 | return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); |
8929 | #endif |
8930 | #ifdef TARGET_NR_recvfrom |
8931 | case TARGET_NR_recvfrom: |
8932 | return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); |
8933 | #endif |
8934 | #ifdef TARGET_NR_recvmsg |
8935 | case TARGET_NR_recvmsg: |
8936 | return do_sendrecvmsg(arg1, arg2, arg3, 0); |
8937 | #endif |
8938 | #ifdef TARGET_NR_send |
8939 | case TARGET_NR_send: |
8940 | return do_sendto(arg1, arg2, arg3, arg4, 0, 0); |
8941 | #endif |
8942 | #ifdef TARGET_NR_sendmsg |
8943 | case TARGET_NR_sendmsg: |
8944 | return do_sendrecvmsg(arg1, arg2, arg3, 1); |
8945 | #endif |
8946 | #ifdef TARGET_NR_sendmmsg |
8947 | case TARGET_NR_sendmmsg: |
8948 | return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1); |
8949 | case TARGET_NR_recvmmsg: |
8950 | return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0); |
8951 | #endif |
8952 | #ifdef TARGET_NR_sendto |
8953 | case TARGET_NR_sendto: |
8954 | return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); |
8955 | #endif |
8956 | #ifdef TARGET_NR_shutdown |
8957 | case TARGET_NR_shutdown: |
8958 | return get_errno(shutdown(arg1, arg2)); |
8959 | #endif |
8960 | #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) |
8961 | case TARGET_NR_getrandom: |
8962 | p = lock_user(VERIFY_WRITE, arg1, arg2, 0); |
8963 | if (!p) { |
8964 | return -TARGET_EFAULT; |
8965 | } |
8966 | ret = get_errno(getrandom(p, arg2, arg3)); |
8967 | unlock_user(p, arg1, ret); |
8968 | return ret; |
8969 | #endif |
8970 | #ifdef TARGET_NR_socket |
8971 | case TARGET_NR_socket: |
8972 | return do_socket(arg1, arg2, arg3); |
8973 | #endif |
8974 | #ifdef TARGET_NR_socketpair |
8975 | case TARGET_NR_socketpair: |
8976 | return do_socketpair(arg1, arg2, arg3, arg4); |
8977 | #endif |
8978 | #ifdef TARGET_NR_setsockopt |
8979 | case TARGET_NR_setsockopt: |
8980 | return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); |
8981 | #endif |
8982 | #if defined(TARGET_NR_syslog) |
8983 | case TARGET_NR_syslog: |
8984 | { |
8985 | int len = arg2; |
8986 | |
8987 | switch (arg1) { |
8988 | case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */ |
8989 | case TARGET_SYSLOG_ACTION_OPEN: /* Open log */ |
8990 | case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */ |
8991 | case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */ |
8992 | case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */ |
8993 | case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */ |
8994 | case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */ |
8995 | case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */ |
8996 | return get_errno(sys_syslog((int)arg1, NULL, (int)arg3)); |
8997 | case TARGET_SYSLOG_ACTION_READ: /* Read from log */ |
8998 | case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */ |
8999 | case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */ |
9000 | { |
9001 | if (len < 0) { |
9002 | return -TARGET_EINVAL; |
9003 | } |
9004 | if (len == 0) { |
9005 | return 0; |
9006 | } |
9007 | p = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
9008 | if (!p) { |
9009 | return -TARGET_EFAULT; |
9010 | } |
9011 | ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); |
9012 | unlock_user(p, arg2, arg3); |
9013 | } |
9014 | return ret; |
9015 | default: |
9016 | return -TARGET_EINVAL; |
9017 | } |
9018 | } |
9019 | break; |
9020 | #endif |
9021 | case TARGET_NR_setitimer: |
9022 | { |
9023 | struct itimerval value, ovalue, *pvalue; |
9024 | |
9025 | if (arg2) { |
9026 | pvalue = &value; |
9027 | if (copy_from_user_timeval(&pvalue->it_interval, arg2) |
9028 | || copy_from_user_timeval(&pvalue->it_value, |
9029 | arg2 + sizeof(struct target_timeval))) |
9030 | return -TARGET_EFAULT; |
9031 | } else { |
9032 | pvalue = NULL; |
9033 | } |
9034 | ret = get_errno(setitimer(arg1, pvalue, &ovalue)); |
9035 | if (!is_error(ret) && arg3) { |
9036 | if (copy_to_user_timeval(arg3, |
9037 | &ovalue.it_interval) |
9038 | || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), |
9039 | &ovalue.it_value)) |
9040 | return -TARGET_EFAULT; |
9041 | } |
9042 | } |
9043 | return ret; |
9044 | case TARGET_NR_getitimer: |
9045 | { |
9046 | struct itimerval value; |
9047 | |
9048 | ret = get_errno(getitimer(arg1, &value)); |
9049 | if (!is_error(ret) && arg2) { |
9050 | if (copy_to_user_timeval(arg2, |
9051 | &value.it_interval) |
9052 | || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), |
9053 | &value.it_value)) |
9054 | return -TARGET_EFAULT; |
9055 | } |
9056 | } |
9057 | return ret; |
9058 | #ifdef TARGET_NR_stat |
9059 | case TARGET_NR_stat: |
9060 | if (!(p = lock_user_string(arg1))) { |
9061 | return -TARGET_EFAULT; |
9062 | } |
9063 | ret = get_errno(stat(path(p), &st)); |
9064 | unlock_user(p, arg1, 0); |
9065 | goto do_stat; |
9066 | #endif |
9067 | #ifdef TARGET_NR_lstat |
9068 | case TARGET_NR_lstat: |
9069 | if (!(p = lock_user_string(arg1))) { |
9070 | return -TARGET_EFAULT; |
9071 | } |
9072 | ret = get_errno(lstat(path(p), &st)); |
9073 | unlock_user(p, arg1, 0); |
9074 | goto do_stat; |
9075 | #endif |
9076 | #ifdef TARGET_NR_fstat |
9077 | case TARGET_NR_fstat: |
9078 | { |
9079 | ret = get_errno(fstat(arg1, &st)); |
9080 | #if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat) |
9081 | do_stat: |
9082 | #endif |
9083 | if (!is_error(ret)) { |
9084 | struct target_stat *target_st; |
9085 | |
9086 | if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) |
9087 | return -TARGET_EFAULT; |
9088 | memset(target_st, 0, sizeof(*target_st)); |
9089 | __put_user(st.st_dev, &target_st->st_dev); |
9090 | __put_user(st.st_ino, &target_st->st_ino); |
9091 | __put_user(st.st_mode, &target_st->st_mode); |
9092 | __put_user(st.st_uid, &target_st->st_uid); |
9093 | __put_user(st.st_gid, &target_st->st_gid); |
9094 | __put_user(st.st_nlink, &target_st->st_nlink); |
9095 | __put_user(st.st_rdev, &target_st->st_rdev); |
9096 | __put_user(st.st_size, &target_st->st_size); |
9097 | __put_user(st.st_blksize, &target_st->st_blksize); |
9098 | __put_user(st.st_blocks, &target_st->st_blocks); |
9099 | __put_user(st.st_atime, &target_st->target_st_atime); |
9100 | __put_user(st.st_mtime, &target_st->target_st_mtime); |
9101 | __put_user(st.st_ctime, &target_st->target_st_ctime); |
9102 | #if (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) && \ |
9103 | defined(TARGET_STAT_HAVE_NSEC) |
9104 | __put_user(st.st_atim.tv_nsec, |
9105 | &target_st->target_st_atime_nsec); |
9106 | __put_user(st.st_mtim.tv_nsec, |
9107 | &target_st->target_st_mtime_nsec); |
9108 | __put_user(st.st_ctim.tv_nsec, |
9109 | &target_st->target_st_ctime_nsec); |
9110 | #endif |
9111 | unlock_user_struct(target_st, arg2, 1); |
9112 | } |
9113 | } |
9114 | return ret; |
9115 | #endif |
9116 | case TARGET_NR_vhangup: |
9117 | return get_errno(vhangup()); |
9118 | #ifdef TARGET_NR_syscall |
9119 | case TARGET_NR_syscall: |
9120 | return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5, |
9121 | arg6, arg7, arg8, 0); |
9122 | #endif |
9123 | case TARGET_NR_wait4: |
9124 | { |
9125 | int status; |
9126 | abi_long status_ptr = arg2; |
9127 | struct rusage rusage, *rusage_ptr; |
9128 | abi_ulong target_rusage = arg4; |
9129 | abi_long rusage_err; |
9130 | if (target_rusage) |
9131 | rusage_ptr = &rusage; |
9132 | else |
9133 | rusage_ptr = NULL; |
9134 | ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr)); |
9135 | if (!is_error(ret)) { |
9136 | if (status_ptr && ret) { |
9137 | status = host_to_target_waitstatus(status); |
9138 | if (put_user_s32(status, status_ptr)) |
9139 | return -TARGET_EFAULT; |
9140 | } |
9141 | if (target_rusage) { |
9142 | rusage_err = host_to_target_rusage(target_rusage, &rusage); |
9143 | if (rusage_err) { |
9144 | ret = rusage_err; |
9145 | } |
9146 | } |
9147 | } |
9148 | } |
9149 | return ret; |
9150 | #ifdef TARGET_NR_swapoff |
9151 | case TARGET_NR_swapoff: |
9152 | if (!(p = lock_user_string(arg1))) |
9153 | return -TARGET_EFAULT; |
9154 | ret = get_errno(swapoff(p)); |
9155 | unlock_user(p, arg1, 0); |
9156 | return ret; |
9157 | #endif |
9158 | case TARGET_NR_sysinfo: |
9159 | { |
9160 | struct target_sysinfo *target_value; |
9161 | struct sysinfo value; |
9162 | ret = get_errno(sysinfo(&value)); |
9163 | if (!is_error(ret) && arg1) |
9164 | { |
9165 | if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) |
9166 | return -TARGET_EFAULT; |
9167 | __put_user(value.uptime, &target_value->uptime); |
9168 | __put_user(value.loads[0], &target_value->loads[0]); |
9169 | __put_user(value.loads[1], &target_value->loads[1]); |
9170 | __put_user(value.loads[2], &target_value->loads[2]); |
9171 | __put_user(value.totalram, &target_value->totalram); |
9172 | __put_user(value.freeram, &target_value->freeram); |
9173 | __put_user(value.sharedram, &target_value->sharedram); |
9174 | __put_user(value.bufferram, &target_value->bufferram); |
9175 | __put_user(value.totalswap, &target_value->totalswap); |
9176 | __put_user(value.freeswap, &target_value->freeswap); |
9177 | __put_user(value.procs, &target_value->procs); |
9178 | __put_user(value.totalhigh, &target_value->totalhigh); |
9179 | __put_user(value.freehigh, &target_value->freehigh); |
9180 | __put_user(value.mem_unit, &target_value->mem_unit); |
9181 | unlock_user_struct(target_value, arg1, 1); |
9182 | } |
9183 | } |
9184 | return ret; |
9185 | #ifdef TARGET_NR_ipc |
9186 | case TARGET_NR_ipc: |
9187 | return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); |
9188 | #endif |
9189 | #ifdef TARGET_NR_semget |
9190 | case TARGET_NR_semget: |
9191 | return get_errno(semget(arg1, arg2, arg3)); |
9192 | #endif |
9193 | #ifdef TARGET_NR_semop |
9194 | case TARGET_NR_semop: |
9195 | return do_semop(arg1, arg2, arg3); |
9196 | #endif |
9197 | #ifdef TARGET_NR_semctl |
9198 | case TARGET_NR_semctl: |
9199 | return do_semctl(arg1, arg2, arg3, arg4); |
9200 | #endif |
9201 | #ifdef TARGET_NR_msgctl |
9202 | case TARGET_NR_msgctl: |
9203 | return do_msgctl(arg1, arg2, arg3); |
9204 | #endif |
9205 | #ifdef TARGET_NR_msgget |
9206 | case TARGET_NR_msgget: |
9207 | return get_errno(msgget(arg1, arg2)); |
9208 | #endif |
9209 | #ifdef TARGET_NR_msgrcv |
9210 | case TARGET_NR_msgrcv: |
9211 | return do_msgrcv(arg1, arg2, arg3, arg4, arg5); |
9212 | #endif |
9213 | #ifdef TARGET_NR_msgsnd |
9214 | case TARGET_NR_msgsnd: |
9215 | return do_msgsnd(arg1, arg2, arg3, arg4); |
9216 | #endif |
9217 | #ifdef TARGET_NR_shmget |
9218 | case TARGET_NR_shmget: |
9219 | return get_errno(shmget(arg1, arg2, arg3)); |
9220 | #endif |
9221 | #ifdef TARGET_NR_shmctl |
9222 | case TARGET_NR_shmctl: |
9223 | return do_shmctl(arg1, arg2, arg3); |
9224 | #endif |
9225 | #ifdef TARGET_NR_shmat |
9226 | case TARGET_NR_shmat: |
9227 | return do_shmat(cpu_env, arg1, arg2, arg3); |
9228 | #endif |
9229 | #ifdef TARGET_NR_shmdt |
9230 | case TARGET_NR_shmdt: |
9231 | return do_shmdt(arg1); |
9232 | #endif |
9233 | case TARGET_NR_fsync: |
9234 | return get_errno(fsync(arg1)); |
9235 | case TARGET_NR_clone: |
9236 | /* Linux manages to have three different orderings for its |
9237 | * arguments to clone(); the BACKWARDS and BACKWARDS2 defines |
9238 | * match the kernel's CONFIG_CLONE_* settings. |
9239 | * Microblaze is further special in that it uses a sixth |
9240 | * implicit argument to clone for the TLS pointer. |
9241 | */ |
9242 | #if defined(TARGET_MICROBLAZE) |
9243 | ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5)); |
9244 | #elif defined(TARGET_CLONE_BACKWARDS) |
9245 | ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); |
9246 | #elif defined(TARGET_CLONE_BACKWARDS2) |
9247 | ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4)); |
9248 | #else |
9249 | ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); |
9250 | #endif |
9251 | return ret; |
9252 | #ifdef __NR_exit_group |
9253 | /* new thread calls */ |
9254 | case TARGET_NR_exit_group: |
9255 | preexit_cleanup(cpu_env, arg1); |
9256 | return get_errno(exit_group(arg1)); |
9257 | #endif |
9258 | case TARGET_NR_setdomainname: |
9259 | if (!(p = lock_user_string(arg1))) |
9260 | return -TARGET_EFAULT; |
9261 | ret = get_errno(setdomainname(p, arg2)); |
9262 | unlock_user(p, arg1, 0); |
9263 | return ret; |
9264 | case TARGET_NR_uname: |
9265 | /* no need to transcode because we use the linux syscall */ |
9266 | { |
9267 | struct new_utsname * buf; |
9268 | |
9269 | if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) |
9270 | return -TARGET_EFAULT; |
9271 | ret = get_errno(sys_uname(buf)); |
9272 | if (!is_error(ret)) { |
9273 | /* Overwrite the native machine name with whatever is being |
9274 | emulated. */ |
9275 | g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env), |
9276 | sizeof(buf->machine)); |
9277 | /* Allow the user to override the reported release. */ |
9278 | if (qemu_uname_release && *qemu_uname_release) { |
9279 | g_strlcpy(buf->release, qemu_uname_release, |
9280 | sizeof(buf->release)); |
9281 | } |
9282 | } |
9283 | unlock_user_struct(buf, arg1, 1); |
9284 | } |
9285 | return ret; |
9286 | #ifdef TARGET_I386 |
9287 | case TARGET_NR_modify_ldt: |
9288 | return do_modify_ldt(cpu_env, arg1, arg2, arg3); |
9289 | #if !defined(TARGET_X86_64) |
9290 | case TARGET_NR_vm86: |
9291 | return do_vm86(cpu_env, arg1, arg2); |
9292 | #endif |
9293 | #endif |
9294 | case TARGET_NR_adjtimex: |
9295 | { |
9296 | struct timex host_buf; |
9297 | |
9298 | if (target_to_host_timex(&host_buf, arg1) != 0) { |
9299 | return -TARGET_EFAULT; |
9300 | } |
9301 | ret = get_errno(adjtimex(&host_buf)); |
9302 | if (!is_error(ret)) { |
9303 | if (host_to_target_timex(arg1, &host_buf) != 0) { |
9304 | return -TARGET_EFAULT; |
9305 | } |
9306 | } |
9307 | } |
9308 | return ret; |
9309 | #if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME) |
9310 | case TARGET_NR_clock_adjtime: |
9311 | { |
9312 | struct timex htx, *phtx = &htx; |
9313 | |
9314 | if (target_to_host_timex(phtx, arg2) != 0) { |
9315 | return -TARGET_EFAULT; |
9316 | } |
9317 | ret = get_errno(clock_adjtime(arg1, phtx)); |
9318 | if (!is_error(ret) && phtx) { |
9319 | if (host_to_target_timex(arg2, phtx) != 0) { |
9320 | return -TARGET_EFAULT; |
9321 | } |
9322 | } |
9323 | } |
9324 | return ret; |
9325 | #endif |
9326 | case TARGET_NR_getpgid: |
9327 | return get_errno(getpgid(arg1)); |
9328 | case TARGET_NR_fchdir: |
9329 | return get_errno(fchdir(arg1)); |
9330 | case TARGET_NR_personality: |
9331 | return get_errno(personality(arg1)); |
9332 | #ifdef TARGET_NR__llseek /* Not on alpha */ |
9333 | case TARGET_NR__llseek: |
9334 | { |
9335 | int64_t res; |
9336 | #if !defined(__NR_llseek) |
9337 | res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5); |
9338 | if (res == -1) { |
9339 | ret = get_errno(res); |
9340 | } else { |
9341 | ret = 0; |
9342 | } |
9343 | #else |
9344 | ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); |
9345 | #endif |
9346 | if ((ret == 0) && put_user_s64(res, arg4)) { |
9347 | return -TARGET_EFAULT; |
9348 | } |
9349 | } |
9350 | return ret; |
9351 | #endif |
9352 | #ifdef TARGET_NR_getdents |
9353 | case TARGET_NR_getdents: |
9354 | #ifdef EMULATE_GETDENTS_WITH_GETDENTS |
9355 | #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 |
9356 | { |
9357 | struct target_dirent *target_dirp; |
9358 | struct linux_dirent *dirp; |
9359 | abi_long count = arg3; |
9360 | |
9361 | dirp = g_try_malloc(count); |
9362 | if (!dirp) { |
9363 | return -TARGET_ENOMEM; |
9364 | } |
9365 | |
9366 | ret = get_errno(sys_getdents(arg1, dirp, count)); |
9367 | if (!is_error(ret)) { |
9368 | struct linux_dirent *de; |
9369 | struct target_dirent *tde; |
9370 | int len = ret; |
9371 | int reclen, treclen; |
9372 | int count1, tnamelen; |
9373 | |
9374 | count1 = 0; |
9375 | de = dirp; |
9376 | if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
9377 | return -TARGET_EFAULT; |
9378 | tde = target_dirp; |
9379 | while (len > 0) { |
9380 | reclen = de->d_reclen; |
9381 | tnamelen = reclen - offsetof(struct linux_dirent, d_name); |
9382 | assert(tnamelen >= 0); |
9383 | treclen = tnamelen + offsetof(struct target_dirent, d_name); |
9384 | assert(count1 + treclen <= count); |
9385 | tde->d_reclen = tswap16(treclen); |
9386 | tde->d_ino = tswapal(de->d_ino); |
9387 | tde->d_off = tswapal(de->d_off); |
9388 | memcpy(tde->d_name, de->d_name, tnamelen); |
9389 | de = (struct linux_dirent *)((char *)de + reclen); |
9390 | len -= reclen; |
9391 | tde = (struct target_dirent *)((char *)tde + treclen); |
9392 | count1 += treclen; |
9393 | } |
9394 | ret = count1; |
9395 | unlock_user(target_dirp, arg2, ret); |
9396 | } |
9397 | g_free(dirp); |
9398 | } |
9399 | #else |
9400 | { |
9401 | struct linux_dirent *dirp; |
9402 | abi_long count = arg3; |
9403 | |
9404 | if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
9405 | return -TARGET_EFAULT; |
9406 | ret = get_errno(sys_getdents(arg1, dirp, count)); |
9407 | if (!is_error(ret)) { |
9408 | struct linux_dirent *de; |
9409 | int len = ret; |
9410 | int reclen; |
9411 | de = dirp; |
9412 | while (len > 0) { |
9413 | reclen = de->d_reclen; |
9414 | if (reclen > len) |
9415 | break; |
9416 | de->d_reclen = tswap16(reclen); |
9417 | tswapls(&de->d_ino); |
9418 | tswapls(&de->d_off); |
9419 | de = (struct linux_dirent *)((char *)de + reclen); |
9420 | len -= reclen; |
9421 | } |
9422 | } |
9423 | unlock_user(dirp, arg2, ret); |
9424 | } |
9425 | #endif |
9426 | #else |
9427 | /* Implement getdents in terms of getdents64 */ |
9428 | { |
9429 | struct linux_dirent64 *dirp; |
9430 | abi_long count = arg3; |
9431 | |
9432 | dirp = lock_user(VERIFY_WRITE, arg2, count, 0); |
9433 | if (!dirp) { |
9434 | return -TARGET_EFAULT; |
9435 | } |
9436 | ret = get_errno(sys_getdents64(arg1, dirp, count)); |
9437 | if (!is_error(ret)) { |
9438 | /* Convert the dirent64 structs to target dirent. We do this |
9439 | * in-place, since we can guarantee that a target_dirent is no |
9440 | * larger than a dirent64; however this means we have to be |
9441 | * careful to read everything before writing in the new format. |
9442 | */ |
9443 | struct linux_dirent64 *de; |
9444 | struct target_dirent *tde; |
9445 | int len = ret; |
9446 | int tlen = 0; |
9447 | |
9448 | de = dirp; |
9449 | tde = (struct target_dirent *)dirp; |
9450 | while (len > 0) { |
9451 | int namelen, treclen; |
9452 | int reclen = de->d_reclen; |
9453 | uint64_t ino = de->d_ino; |
9454 | int64_t off = de->d_off; |
9455 | uint8_t type = de->d_type; |
9456 | |
9457 | namelen = strlen(de->d_name); |
9458 | treclen = offsetof(struct target_dirent, d_name) |
9459 | + namelen + 2; |
9460 | treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long)); |
9461 | |
9462 | memmove(tde->d_name, de->d_name, namelen + 1); |
9463 | tde->d_ino = tswapal(ino); |
9464 | tde->d_off = tswapal(off); |
9465 | tde->d_reclen = tswap16(treclen); |
9466 | /* The target_dirent type is in what was formerly a padding |
9467 | * byte at the end of the structure: |
9468 | */ |
9469 | *(((char *)tde) + treclen - 1) = type; |
9470 | |
9471 | de = (struct linux_dirent64 *)((char *)de + reclen); |
9472 | tde = (struct target_dirent *)((char *)tde + treclen); |
9473 | len -= reclen; |
9474 | tlen += treclen; |
9475 | } |
9476 | ret = tlen; |
9477 | } |
9478 | unlock_user(dirp, arg2, ret); |
9479 | } |
9480 | #endif |
9481 | return ret; |
9482 | #endif /* TARGET_NR_getdents */ |
9483 | #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) |
9484 | case TARGET_NR_getdents64: |
9485 | { |
9486 | struct linux_dirent64 *dirp; |
9487 | abi_long count = arg3; |
9488 | if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
9489 | return -TARGET_EFAULT; |
9490 | ret = get_errno(sys_getdents64(arg1, dirp, count)); |
9491 | if (!is_error(ret)) { |
9492 | struct linux_dirent64 *de; |
9493 | int len = ret; |
9494 | int reclen; |
9495 | de = dirp; |
9496 | while (len > 0) { |
9497 | reclen = de->d_reclen; |
9498 | if (reclen > len) |
9499 | break; |
9500 | de->d_reclen = tswap16(reclen); |
9501 | tswap64s((uint64_t *)&de->d_ino); |
9502 | tswap64s((uint64_t *)&de->d_off); |
9503 | de = (struct linux_dirent64 *)((char *)de + reclen); |
9504 | len -= reclen; |
9505 | } |
9506 | } |
9507 | unlock_user(dirp, arg2, ret); |
9508 | } |
9509 | return ret; |
9510 | #endif /* TARGET_NR_getdents64 */ |
9511 | #if defined(TARGET_NR__newselect) |
9512 | case TARGET_NR__newselect: |
9513 | return do_select(arg1, arg2, arg3, arg4, arg5); |
9514 | #endif |
9515 | #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) |
9516 | # ifdef TARGET_NR_poll |
9517 | case TARGET_NR_poll: |
9518 | # endif |
9519 | # ifdef TARGET_NR_ppoll |
9520 | case TARGET_NR_ppoll: |
9521 | # endif |
9522 | { |
9523 | struct target_pollfd *target_pfd; |
9524 | unsigned int nfds = arg2; |
9525 | struct pollfd *pfd; |
9526 | unsigned int i; |
9527 | |
9528 | pfd = NULL; |
9529 | target_pfd = NULL; |
9530 | if (nfds) { |
9531 | if (nfds > (INT_MAX / sizeof(struct target_pollfd))) { |
9532 | return -TARGET_EINVAL; |
9533 | } |
9534 | |
9535 | target_pfd = lock_user(VERIFY_WRITE, arg1, |
9536 | sizeof(struct target_pollfd) * nfds, 1); |
9537 | if (!target_pfd) { |
9538 | return -TARGET_EFAULT; |
9539 | } |
9540 | |
9541 | pfd = alloca(sizeof(struct pollfd) * nfds); |
9542 | for (i = 0; i < nfds; i++) { |
9543 | pfd[i].fd = tswap32(target_pfd[i].fd); |
9544 | pfd[i].events = tswap16(target_pfd[i].events); |
9545 | } |
9546 | } |
9547 | |
9548 | switch (num) { |
9549 | # ifdef TARGET_NR_ppoll |
9550 | case TARGET_NR_ppoll: |
9551 | { |
9552 | struct timespec _timeout_ts, *timeout_ts = &_timeout_ts; |
9553 | target_sigset_t *target_set; |
9554 | sigset_t _set, *set = &_set; |
9555 | |
9556 | if (arg3) { |
9557 | if (target_to_host_timespec(timeout_ts, arg3)) { |
9558 | unlock_user(target_pfd, arg1, 0); |
9559 | return -TARGET_EFAULT; |
9560 | } |
9561 | } else { |
9562 | timeout_ts = NULL; |
9563 | } |
9564 | |
9565 | if (arg4) { |
9566 | if (arg5 != sizeof(target_sigset_t)) { |
9567 | unlock_user(target_pfd, arg1, 0); |
9568 | return -TARGET_EINVAL; |
9569 | } |
9570 | |
9571 | target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1); |
9572 | if (!target_set) { |
9573 | unlock_user(target_pfd, arg1, 0); |
9574 | return -TARGET_EFAULT; |
9575 | } |
9576 | target_to_host_sigset(set, target_set); |
9577 | } else { |
9578 | set = NULL; |
9579 | } |
9580 | |
9581 | ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts, |
9582 | set, SIGSET_T_SIZE)); |
9583 | |
9584 | if (!is_error(ret) && arg3) { |
9585 | host_to_target_timespec(arg3, timeout_ts); |
9586 | } |
9587 | if (arg4) { |
9588 | unlock_user(target_set, arg4, 0); |
9589 | } |
9590 | break; |
9591 | } |
9592 | # endif |
9593 | # ifdef TARGET_NR_poll |
9594 | case TARGET_NR_poll: |
9595 | { |
9596 | struct timespec ts, *pts; |
9597 | |
9598 | if (arg3 >= 0) { |
9599 | /* Convert ms to secs, ns */ |
9600 | ts.tv_sec = arg3 / 1000; |
9601 | ts.tv_nsec = (arg3 % 1000) * 1000000LL; |
9602 | pts = &ts; |
9603 | } else { |
9604 | /* -ve poll() timeout means "infinite" */ |
9605 | pts = NULL; |
9606 | } |
9607 | ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0)); |
9608 | break; |
9609 | } |
9610 | # endif |
9611 | default: |
9612 | g_assert_not_reached(); |
9613 | } |
9614 | |
9615 | if (!is_error(ret)) { |
9616 | for(i = 0; i < nfds; i++) { |
9617 | target_pfd[i].revents = tswap16(pfd[i].revents); |
9618 | } |
9619 | } |
9620 | unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds); |
9621 | } |
9622 | return ret; |
9623 | #endif |
9624 | case TARGET_NR_flock: |
9625 | /* NOTE: the flock constant seems to be the same for every |
9626 | Linux platform */ |
9627 | return get_errno(safe_flock(arg1, arg2)); |
9628 | case TARGET_NR_readv: |
9629 | { |
9630 | struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); |
9631 | if (vec != NULL) { |
9632 | ret = get_errno(safe_readv(arg1, vec, arg3)); |
9633 | unlock_iovec(vec, arg2, arg3, 1); |
9634 | } else { |
9635 | ret = -host_to_target_errno(errno); |
9636 | } |
9637 | } |
9638 | return ret; |
9639 | case TARGET_NR_writev: |
9640 | { |
9641 | struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
9642 | if (vec != NULL) { |
9643 | ret = get_errno(safe_writev(arg1, vec, arg3)); |
9644 | unlock_iovec(vec, arg2, arg3, 0); |
9645 | } else { |
9646 | ret = -host_to_target_errno(errno); |
9647 | } |
9648 | } |
9649 | return ret; |
9650 | #if defined(TARGET_NR_preadv) |
9651 | case TARGET_NR_preadv: |
9652 | { |
9653 | struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); |
9654 | if (vec != NULL) { |
9655 | unsigned long low, high; |
9656 | |
9657 | target_to_host_low_high(arg4, arg5, &low, &high); |
9658 | ret = get_errno(safe_preadv(arg1, vec, arg3, low, high)); |
9659 | unlock_iovec(vec, arg2, arg3, 1); |
9660 | } else { |
9661 | ret = -host_to_target_errno(errno); |
9662 | } |
9663 | } |
9664 | return ret; |
9665 | #endif |
9666 | #if defined(TARGET_NR_pwritev) |
9667 | case TARGET_NR_pwritev: |
9668 | { |
9669 | struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
9670 | if (vec != NULL) { |
9671 | unsigned long low, high; |
9672 | |
9673 | target_to_host_low_high(arg4, arg5, &low, &high); |
9674 | ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high)); |
9675 | unlock_iovec(vec, arg2, arg3, 0); |
9676 | } else { |
9677 | ret = -host_to_target_errno(errno); |
9678 | } |
9679 | } |
9680 | return ret; |
9681 | #endif |
9682 | case TARGET_NR_getsid: |
9683 | return get_errno(getsid(arg1)); |
9684 | #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ |
9685 | case TARGET_NR_fdatasync: |
9686 | return get_errno(fdatasync(arg1)); |
9687 | #endif |
9688 | #ifdef TARGET_NR__sysctl |
9689 | case TARGET_NR__sysctl: |
9690 | /* We don't implement this, but ENOTDIR is always a safe |
9691 | return value. */ |
9692 | return -TARGET_ENOTDIR; |
9693 | #endif |
9694 | case TARGET_NR_sched_getaffinity: |
9695 | { |
9696 | unsigned int mask_size; |
9697 | unsigned long *mask; |
9698 | |
9699 | /* |
9700 | * sched_getaffinity needs multiples of ulong, so need to take |
9701 | * care of mismatches between target ulong and host ulong sizes. |
9702 | */ |
9703 | if (arg2 & (sizeof(abi_ulong) - 1)) { |
9704 | return -TARGET_EINVAL; |
9705 | } |
9706 | mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
9707 | |
9708 | mask = alloca(mask_size); |
9709 | memset(mask, 0, mask_size); |
9710 | ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask)); |
9711 | |
9712 | if (!is_error(ret)) { |
9713 | if (ret > arg2) { |
9714 | /* More data returned than the caller's buffer will fit. |
9715 | * This only happens if sizeof(abi_long) < sizeof(long) |
9716 | * and the caller passed us a buffer holding an odd number |
9717 | * of abi_longs. If the host kernel is actually using the |
9718 | * extra 4 bytes then fail EINVAL; otherwise we can just |
9719 | * ignore them and only copy the interesting part. |
9720 | */ |
9721 | int numcpus = sysconf(_SC_NPROCESSORS_CONF); |
9722 | if (numcpus > arg2 * 8) { |
9723 | return -TARGET_EINVAL; |
9724 | } |
9725 | ret = arg2; |
9726 | } |
9727 | |
9728 | if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) { |
9729 | return -TARGET_EFAULT; |
9730 | } |
9731 | } |
9732 | } |
9733 | return ret; |
9734 | case TARGET_NR_sched_setaffinity: |
9735 | { |
9736 | unsigned int mask_size; |
9737 | unsigned long *mask; |
9738 | |
9739 | /* |
9740 | * sched_setaffinity needs multiples of ulong, so need to take |
9741 | * care of mismatches between target ulong and host ulong sizes. |
9742 | */ |
9743 | if (arg2 & (sizeof(abi_ulong) - 1)) { |
9744 | return -TARGET_EINVAL; |
9745 | } |
9746 | mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
9747 | mask = alloca(mask_size); |
9748 | |
9749 | ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2); |
9750 | if (ret) { |
9751 | return ret; |
9752 | } |
9753 | |
9754 | return get_errno(sys_sched_setaffinity(arg1, mask_size, mask)); |
9755 | } |
9756 | case TARGET_NR_getcpu: |
9757 | { |
9758 | unsigned cpu, node; |
9759 | ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL, |
9760 | arg2 ? &node : NULL, |
9761 | NULL)); |
9762 | if (is_error(ret)) { |
9763 | return ret; |
9764 | } |
9765 | if (arg1 && put_user_u32(cpu, arg1)) { |
9766 | return -TARGET_EFAULT; |
9767 | } |
9768 | if (arg2 && put_user_u32(node, arg2)) { |
9769 | return -TARGET_EFAULT; |
9770 | } |
9771 | } |
9772 | return ret; |
9773 | case TARGET_NR_sched_setparam: |
9774 | { |
9775 | struct sched_param *target_schp; |
9776 | struct sched_param schp; |
9777 | |
9778 | if (arg2 == 0) { |
9779 | return -TARGET_EINVAL; |
9780 | } |
9781 | if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) |
9782 | return -TARGET_EFAULT; |
9783 | schp.sched_priority = tswap32(target_schp->sched_priority); |
9784 | unlock_user_struct(target_schp, arg2, 0); |
9785 | return get_errno(sched_setparam(arg1, &schp)); |
9786 | } |
9787 | case TARGET_NR_sched_getparam: |
9788 | { |
9789 | struct sched_param *target_schp; |
9790 | struct sched_param schp; |
9791 | |
9792 | if (arg2 == 0) { |
9793 | return -TARGET_EINVAL; |
9794 | } |
9795 | ret = get_errno(sched_getparam(arg1, &schp)); |
9796 | if (!is_error(ret)) { |
9797 | if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) |
9798 | return -TARGET_EFAULT; |
9799 | target_schp->sched_priority = tswap32(schp.sched_priority); |
9800 | unlock_user_struct(target_schp, arg2, 1); |
9801 | } |
9802 | } |
9803 | return ret; |
9804 | case TARGET_NR_sched_setscheduler: |
9805 | { |
9806 | struct sched_param *target_schp; |
9807 | struct sched_param schp; |
9808 | if (arg3 == 0) { |
9809 | return -TARGET_EINVAL; |
9810 | } |
9811 | if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) |
9812 | return -TARGET_EFAULT; |
9813 | schp.sched_priority = tswap32(target_schp->sched_priority); |
9814 | unlock_user_struct(target_schp, arg3, 0); |
9815 | return get_errno(sched_setscheduler(arg1, arg2, &schp)); |
9816 | } |
9817 | case TARGET_NR_sched_getscheduler: |
9818 | return get_errno(sched_getscheduler(arg1)); |
9819 | case TARGET_NR_sched_yield: |
9820 | return get_errno(sched_yield()); |
9821 | case TARGET_NR_sched_get_priority_max: |
9822 | return get_errno(sched_get_priority_max(arg1)); |
9823 | case TARGET_NR_sched_get_priority_min: |
9824 | return get_errno(sched_get_priority_min(arg1)); |
9825 | case TARGET_NR_sched_rr_get_interval: |
9826 | { |
9827 | struct timespec ts; |
9828 | ret = get_errno(sched_rr_get_interval(arg1, &ts)); |
9829 | if (!is_error(ret)) { |
9830 | ret = host_to_target_timespec(arg2, &ts); |
9831 | } |
9832 | } |
9833 | return ret; |
9834 | case TARGET_NR_nanosleep: |
9835 | { |
9836 | struct timespec req, rem; |
9837 | target_to_host_timespec(&req, arg1); |
9838 | ret = get_errno(safe_nanosleep(&req, &rem)); |
9839 | if (is_error(ret) && arg2) { |
9840 | host_to_target_timespec(arg2, &rem); |
9841 | } |
9842 | } |
9843 | return ret; |
9844 | case TARGET_NR_prctl: |
9845 | switch (arg1) { |
9846 | case PR_GET_PDEATHSIG: |
9847 | { |
9848 | int deathsig; |
9849 | ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); |
9850 | if (!is_error(ret) && arg2 |
9851 | && put_user_ual(deathsig, arg2)) { |
9852 | return -TARGET_EFAULT; |
9853 | } |
9854 | return ret; |
9855 | } |
9856 | #ifdef PR_GET_NAME |
9857 | case PR_GET_NAME: |
9858 | { |
9859 | void *name = lock_user(VERIFY_WRITE, arg2, 16, 1); |
9860 | if (!name) { |
9861 | return -TARGET_EFAULT; |
9862 | } |
9863 | ret = get_errno(prctl(arg1, (unsigned long)name, |
9864 | arg3, arg4, arg5)); |
9865 | unlock_user(name, arg2, 16); |
9866 | return ret; |
9867 | } |
9868 | case PR_SET_NAME: |
9869 | { |
9870 | void *name = lock_user(VERIFY_READ, arg2, 16, 1); |
9871 | if (!name) { |
9872 | return -TARGET_EFAULT; |
9873 | } |
9874 | ret = get_errno(prctl(arg1, (unsigned long)name, |
9875 | arg3, arg4, arg5)); |
9876 | unlock_user(name, arg2, 0); |
9877 | return ret; |
9878 | } |
9879 | #endif |
9880 | #ifdef TARGET_MIPS |
9881 | case TARGET_PR_GET_FP_MODE: |
9882 | { |
9883 | CPUMIPSState *env = ((CPUMIPSState *)cpu_env); |
9884 | ret = 0; |
9885 | if (env->CP0_Status & (1 << CP0St_FR)) { |
9886 | ret |= TARGET_PR_FP_MODE_FR; |
9887 | } |
9888 | if (env->CP0_Config5 & (1 << CP0C5_FRE)) { |
9889 | ret |= TARGET_PR_FP_MODE_FRE; |
9890 | } |
9891 | return ret; |
9892 | } |
9893 | case TARGET_PR_SET_FP_MODE: |
9894 | { |
9895 | CPUMIPSState *env = ((CPUMIPSState *)cpu_env); |
9896 | bool old_fr = env->CP0_Status & (1 << CP0St_FR); |
9897 | bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE); |
9898 | bool new_fr = arg2 & TARGET_PR_FP_MODE_FR; |
9899 | bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE; |
9900 | |
9901 | const unsigned int known_bits = TARGET_PR_FP_MODE_FR | |
9902 | TARGET_PR_FP_MODE_FRE; |
9903 | |
9904 | /* If nothing to change, return right away, successfully. */ |
9905 | if (old_fr == new_fr && old_fre == new_fre) { |
9906 | return 0; |
9907 | } |
9908 | /* Check the value is valid */ |
9909 | if (arg2 & ~known_bits) { |
9910 | return -TARGET_EOPNOTSUPP; |
9911 | } |
9912 | /* Setting FRE without FR is not supported. */ |
9913 | if (new_fre && !new_fr) { |
9914 | return -TARGET_EOPNOTSUPP; |
9915 | } |
9916 | if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) { |
9917 | /* FR1 is not supported */ |
9918 | return -TARGET_EOPNOTSUPP; |
9919 | } |
9920 | if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64)) |
9921 | && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) { |
9922 | /* cannot set FR=0 */ |
9923 | return -TARGET_EOPNOTSUPP; |
9924 | } |
9925 | if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) { |
9926 | /* Cannot set FRE=1 */ |
9927 | return -TARGET_EOPNOTSUPP; |
9928 | } |
9929 | |
9930 | int i; |
9931 | fpr_t *fpr = env->active_fpu.fpr; |
9932 | for (i = 0; i < 32 ; i += 2) { |
9933 | if (!old_fr && new_fr) { |
9934 | fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX]; |
9935 | } else if (old_fr && !new_fr) { |
9936 | fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX]; |
9937 | } |
9938 | } |
9939 | |
9940 | if (new_fr) { |
9941 | env->CP0_Status |= (1 << CP0St_FR); |
9942 | env->hflags |= MIPS_HFLAG_F64; |
9943 | } else { |
9944 | env->CP0_Status &= ~(1 << CP0St_FR); |
9945 | env->hflags &= ~MIPS_HFLAG_F64; |
9946 | } |
9947 | if (new_fre) { |
9948 | env->CP0_Config5 |= (1 << CP0C5_FRE); |
9949 | if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) { |
9950 | env->hflags |= MIPS_HFLAG_FRE; |
9951 | } |
9952 | } else { |
9953 | env->CP0_Config5 &= ~(1 << CP0C5_FRE); |
9954 | env->hflags &= ~MIPS_HFLAG_FRE; |
9955 | } |
9956 | |
9957 | return 0; |
9958 | } |
9959 | #endif /* MIPS */ |
9960 | #ifdef TARGET_AARCH64 |
9961 | case TARGET_PR_SVE_SET_VL: |
9962 | /* |
9963 | * We cannot support either PR_SVE_SET_VL_ONEXEC or |
9964 | * PR_SVE_VL_INHERIT. Note the kernel definition |
9965 | * of sve_vl_valid allows for VQ=512, i.e. VL=8192, |
9966 | * even though the current architectural maximum is VQ=16. |
9967 | */ |
9968 | ret = -TARGET_EINVAL; |
9969 | if (cpu_isar_feature(aa64_sve, env_archcpu(cpu_env)) |
9970 | && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) { |
9971 | CPUARMState *env = cpu_env; |
9972 | ARMCPU *cpu = env_archcpu(env); |
9973 | uint32_t vq, old_vq; |
9974 | |
9975 | old_vq = (env->vfp.zcr_el[1] & 0xf) + 1; |
9976 | vq = MAX(arg2 / 16, 1); |
9977 | vq = MIN(vq, cpu->sve_max_vq); |
9978 | |
9979 | if (vq < old_vq) { |
9980 | aarch64_sve_narrow_vq(env, vq); |
9981 | } |
9982 | env->vfp.zcr_el[1] = vq - 1; |
9983 | ret = vq * 16; |
9984 | } |
9985 | return ret; |
9986 | case TARGET_PR_SVE_GET_VL: |
9987 | ret = -TARGET_EINVAL; |
9988 | { |
9989 | ARMCPU *cpu = env_archcpu(cpu_env); |
9990 | if (cpu_isar_feature(aa64_sve, cpu)) { |
9991 | ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16; |
9992 | } |
9993 | } |
9994 | return ret; |
9995 | case TARGET_PR_PAC_RESET_KEYS: |
9996 | { |
9997 | CPUARMState *env = cpu_env; |
9998 | ARMCPU *cpu = env_archcpu(env); |
9999 | |
10000 | if (arg3 || arg4 || arg5) { |
10001 | return -TARGET_EINVAL; |
10002 | } |
10003 | if (cpu_isar_feature(aa64_pauth, cpu)) { |
10004 | int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY | |
10005 | TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY | |
10006 | TARGET_PR_PAC_APGAKEY); |
10007 | int ret = 0; |
10008 | Error *err = NULL; |
10009 | |
10010 | if (arg2 == 0) { |
10011 | arg2 = all; |
10012 | } else if (arg2 & ~all) { |
10013 | return -TARGET_EINVAL; |
10014 | } |
10015 | if (arg2 & TARGET_PR_PAC_APIAKEY) { |
10016 | ret |= qemu_guest_getrandom(&env->keys.apia, |
10017 | sizeof(ARMPACKey), &err); |
10018 | } |
10019 | if (arg2 & TARGET_PR_PAC_APIBKEY) { |
10020 | ret |= qemu_guest_getrandom(&env->keys.apib, |
10021 | sizeof(ARMPACKey), &err); |
10022 | } |
10023 | if (arg2 & TARGET_PR_PAC_APDAKEY) { |
10024 | ret |= qemu_guest_getrandom(&env->keys.apda, |
10025 | sizeof(ARMPACKey), &err); |
10026 | } |
10027 | if (arg2 & TARGET_PR_PAC_APDBKEY) { |
10028 | ret |= qemu_guest_getrandom(&env->keys.apdb, |
10029 | sizeof(ARMPACKey), &err); |
10030 | } |
10031 | if (arg2 & TARGET_PR_PAC_APGAKEY) { |
10032 | ret |= qemu_guest_getrandom(&env->keys.apga, |
10033 | sizeof(ARMPACKey), &err); |
10034 | } |
10035 | if (ret != 0) { |
10036 | /* |
10037 | * Some unknown failure in the crypto. The best |
10038 | * we can do is log it and fail the syscall. |
10039 | * The real syscall cannot fail this way. |
10040 | */ |
10041 | qemu_log_mask(LOG_UNIMP, |
10042 | "PR_PAC_RESET_KEYS: Crypto failure: %s" , |
10043 | error_get_pretty(err)); |
10044 | error_free(err); |
10045 | return -TARGET_EIO; |
10046 | } |
10047 | return 0; |
10048 | } |
10049 | } |
10050 | return -TARGET_EINVAL; |
10051 | #endif /* AARCH64 */ |
10052 | case PR_GET_SECCOMP: |
10053 | case PR_SET_SECCOMP: |
10054 | /* Disable seccomp to prevent the target disabling syscalls we |
10055 | * need. */ |
10056 | return -TARGET_EINVAL; |
10057 | default: |
10058 | /* Most prctl options have no pointer arguments */ |
10059 | return get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); |
10060 | } |
10061 | break; |
10062 | #ifdef TARGET_NR_arch_prctl |
10063 | case TARGET_NR_arch_prctl: |
10064 | #if defined(TARGET_I386) && !defined(TARGET_ABI32) |
10065 | return do_arch_prctl(cpu_env, arg1, arg2); |
10066 | #else |
10067 | #error unreachable |
10068 | #endif |
10069 | #endif |
10070 | #ifdef TARGET_NR_pread64 |
10071 | case TARGET_NR_pread64: |
10072 | if (regpairs_aligned(cpu_env, num)) { |
10073 | arg4 = arg5; |
10074 | arg5 = arg6; |
10075 | } |
10076 | if (arg2 == 0 && arg3 == 0) { |
10077 | /* Special-case NULL buffer and zero length, which should succeed */ |
10078 | p = 0; |
10079 | } else { |
10080 | p = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
10081 | if (!p) { |
10082 | return -TARGET_EFAULT; |
10083 | } |
10084 | } |
10085 | ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); |
10086 | unlock_user(p, arg2, ret); |
10087 | return ret; |
10088 | case TARGET_NR_pwrite64: |
10089 | if (regpairs_aligned(cpu_env, num)) { |
10090 | arg4 = arg5; |
10091 | arg5 = arg6; |
10092 | } |
10093 | if (arg2 == 0 && arg3 == 0) { |
10094 | /* Special-case NULL buffer and zero length, which should succeed */ |
10095 | p = 0; |
10096 | } else { |
10097 | p = lock_user(VERIFY_READ, arg2, arg3, 1); |
10098 | if (!p) { |
10099 | return -TARGET_EFAULT; |
10100 | } |
10101 | } |
10102 | ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); |
10103 | unlock_user(p, arg2, 0); |
10104 | return ret; |
10105 | #endif |
10106 | case TARGET_NR_getcwd: |
10107 | if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) |
10108 | return -TARGET_EFAULT; |
10109 | ret = get_errno(sys_getcwd1(p, arg2)); |
10110 | unlock_user(p, arg1, ret); |
10111 | return ret; |
10112 | case TARGET_NR_capget: |
10113 | case TARGET_NR_capset: |
10114 | { |
10115 | struct target_user_cap_header *; |
10116 | struct target_user_cap_data *target_data = NULL; |
10117 | struct __user_cap_header_struct ; |
10118 | struct __user_cap_data_struct data[2]; |
10119 | struct __user_cap_data_struct *dataptr = NULL; |
10120 | int i, target_datalen; |
10121 | int data_items = 1; |
10122 | |
10123 | if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) { |
10124 | return -TARGET_EFAULT; |
10125 | } |
10126 | header.version = tswap32(target_header->version); |
10127 | header.pid = tswap32(target_header->pid); |
10128 | |
10129 | if (header.version != _LINUX_CAPABILITY_VERSION) { |
10130 | /* Version 2 and up takes pointer to two user_data structs */ |
10131 | data_items = 2; |
10132 | } |
10133 | |
10134 | target_datalen = sizeof(*target_data) * data_items; |
10135 | |
10136 | if (arg2) { |
10137 | if (num == TARGET_NR_capget) { |
10138 | target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0); |
10139 | } else { |
10140 | target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1); |
10141 | } |
10142 | if (!target_data) { |
10143 | unlock_user_struct(target_header, arg1, 0); |
10144 | return -TARGET_EFAULT; |
10145 | } |
10146 | |
10147 | if (num == TARGET_NR_capset) { |
10148 | for (i = 0; i < data_items; i++) { |
10149 | data[i].effective = tswap32(target_data[i].effective); |
10150 | data[i].permitted = tswap32(target_data[i].permitted); |
10151 | data[i].inheritable = tswap32(target_data[i].inheritable); |
10152 | } |
10153 | } |
10154 | |
10155 | dataptr = data; |
10156 | } |
10157 | |
10158 | if (num == TARGET_NR_capget) { |
10159 | ret = get_errno(capget(&header, dataptr)); |
10160 | } else { |
10161 | ret = get_errno(capset(&header, dataptr)); |
10162 | } |
10163 | |
10164 | /* The kernel always updates version for both capget and capset */ |
10165 | target_header->version = tswap32(header.version); |
10166 | unlock_user_struct(target_header, arg1, 1); |
10167 | |
10168 | if (arg2) { |
10169 | if (num == TARGET_NR_capget) { |
10170 | for (i = 0; i < data_items; i++) { |
10171 | target_data[i].effective = tswap32(data[i].effective); |
10172 | target_data[i].permitted = tswap32(data[i].permitted); |
10173 | target_data[i].inheritable = tswap32(data[i].inheritable); |
10174 | } |
10175 | unlock_user(target_data, arg2, target_datalen); |
10176 | } else { |
10177 | unlock_user(target_data, arg2, 0); |
10178 | } |
10179 | } |
10180 | return ret; |
10181 | } |
10182 | case TARGET_NR_sigaltstack: |
10183 | return do_sigaltstack(arg1, arg2, |
10184 | get_sp_from_cpustate((CPUArchState *)cpu_env)); |
10185 | |
10186 | #ifdef CONFIG_SENDFILE |
10187 | #ifdef TARGET_NR_sendfile |
10188 | case TARGET_NR_sendfile: |
10189 | { |
10190 | off_t *offp = NULL; |
10191 | off_t off; |
10192 | if (arg3) { |
10193 | ret = get_user_sal(off, arg3); |
10194 | if (is_error(ret)) { |
10195 | return ret; |
10196 | } |
10197 | offp = &off; |
10198 | } |
10199 | ret = get_errno(sendfile(arg1, arg2, offp, arg4)); |
10200 | if (!is_error(ret) && arg3) { |
10201 | abi_long ret2 = put_user_sal(off, arg3); |
10202 | if (is_error(ret2)) { |
10203 | ret = ret2; |
10204 | } |
10205 | } |
10206 | return ret; |
10207 | } |
10208 | #endif |
10209 | #ifdef TARGET_NR_sendfile64 |
10210 | case TARGET_NR_sendfile64: |
10211 | { |
10212 | off_t *offp = NULL; |
10213 | off_t off; |
10214 | if (arg3) { |
10215 | ret = get_user_s64(off, arg3); |
10216 | if (is_error(ret)) { |
10217 | return ret; |
10218 | } |
10219 | offp = &off; |
10220 | } |
10221 | ret = get_errno(sendfile(arg1, arg2, offp, arg4)); |
10222 | if (!is_error(ret) && arg3) { |
10223 | abi_long ret2 = put_user_s64(off, arg3); |
10224 | if (is_error(ret2)) { |
10225 | ret = ret2; |
10226 | } |
10227 | } |
10228 | return ret; |
10229 | } |
10230 | #endif |
10231 | #endif |
10232 | #ifdef TARGET_NR_vfork |
10233 | case TARGET_NR_vfork: |
10234 | return get_errno(do_fork(cpu_env, |
10235 | CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD, |
10236 | 0, 0, 0, 0)); |
10237 | #endif |
10238 | #ifdef TARGET_NR_ugetrlimit |
10239 | case TARGET_NR_ugetrlimit: |
10240 | { |
10241 | struct rlimit rlim; |
10242 | int resource = target_to_host_resource(arg1); |
10243 | ret = get_errno(getrlimit(resource, &rlim)); |
10244 | if (!is_error(ret)) { |
10245 | struct target_rlimit *target_rlim; |
10246 | if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) |
10247 | return -TARGET_EFAULT; |
10248 | target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); |
10249 | target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); |
10250 | unlock_user_struct(target_rlim, arg2, 1); |
10251 | } |
10252 | return ret; |
10253 | } |
10254 | #endif |
10255 | #ifdef TARGET_NR_truncate64 |
10256 | case TARGET_NR_truncate64: |
10257 | if (!(p = lock_user_string(arg1))) |
10258 | return -TARGET_EFAULT; |
10259 | ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); |
10260 | unlock_user(p, arg1, 0); |
10261 | return ret; |
10262 | #endif |
10263 | #ifdef TARGET_NR_ftruncate64 |
10264 | case TARGET_NR_ftruncate64: |
10265 | return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); |
10266 | #endif |
10267 | #ifdef TARGET_NR_stat64 |
10268 | case TARGET_NR_stat64: |
10269 | if (!(p = lock_user_string(arg1))) { |
10270 | return -TARGET_EFAULT; |
10271 | } |
10272 | ret = get_errno(stat(path(p), &st)); |
10273 | unlock_user(p, arg1, 0); |
10274 | if (!is_error(ret)) |
10275 | ret = host_to_target_stat64(cpu_env, arg2, &st); |
10276 | return ret; |
10277 | #endif |
10278 | #ifdef TARGET_NR_lstat64 |
10279 | case TARGET_NR_lstat64: |
10280 | if (!(p = lock_user_string(arg1))) { |
10281 | return -TARGET_EFAULT; |
10282 | } |
10283 | ret = get_errno(lstat(path(p), &st)); |
10284 | unlock_user(p, arg1, 0); |
10285 | if (!is_error(ret)) |
10286 | ret = host_to_target_stat64(cpu_env, arg2, &st); |
10287 | return ret; |
10288 | #endif |
10289 | #ifdef TARGET_NR_fstat64 |
10290 | case TARGET_NR_fstat64: |
10291 | ret = get_errno(fstat(arg1, &st)); |
10292 | if (!is_error(ret)) |
10293 | ret = host_to_target_stat64(cpu_env, arg2, &st); |
10294 | return ret; |
10295 | #endif |
10296 | #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) |
10297 | #ifdef TARGET_NR_fstatat64 |
10298 | case TARGET_NR_fstatat64: |
10299 | #endif |
10300 | #ifdef TARGET_NR_newfstatat |
10301 | case TARGET_NR_newfstatat: |
10302 | #endif |
10303 | if (!(p = lock_user_string(arg2))) { |
10304 | return -TARGET_EFAULT; |
10305 | } |
10306 | ret = get_errno(fstatat(arg1, path(p), &st, arg4)); |
10307 | unlock_user(p, arg2, 0); |
10308 | if (!is_error(ret)) |
10309 | ret = host_to_target_stat64(cpu_env, arg3, &st); |
10310 | return ret; |
10311 | #endif |
10312 | #if defined(TARGET_NR_statx) |
10313 | case TARGET_NR_statx: |
10314 | { |
10315 | struct target_statx *target_stx; |
10316 | int dirfd = arg1; |
10317 | int flags = arg3; |
10318 | |
10319 | p = lock_user_string(arg2); |
10320 | if (p == NULL) { |
10321 | return -TARGET_EFAULT; |
10322 | } |
10323 | #if defined(__NR_statx) |
10324 | { |
10325 | /* |
10326 | * It is assumed that struct statx is architecture independent. |
10327 | */ |
10328 | struct target_statx host_stx; |
10329 | int mask = arg4; |
10330 | |
10331 | ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx)); |
10332 | if (!is_error(ret)) { |
10333 | if (host_to_target_statx(&host_stx, arg5) != 0) { |
10334 | unlock_user(p, arg2, 0); |
10335 | return -TARGET_EFAULT; |
10336 | } |
10337 | } |
10338 | |
10339 | if (ret != -TARGET_ENOSYS) { |
10340 | unlock_user(p, arg2, 0); |
10341 | return ret; |
10342 | } |
10343 | } |
10344 | #endif |
10345 | ret = get_errno(fstatat(dirfd, path(p), &st, flags)); |
10346 | unlock_user(p, arg2, 0); |
10347 | |
10348 | if (!is_error(ret)) { |
10349 | if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) { |
10350 | return -TARGET_EFAULT; |
10351 | } |
10352 | memset(target_stx, 0, sizeof(*target_stx)); |
10353 | __put_user(major(st.st_dev), &target_stx->stx_dev_major); |
10354 | __put_user(minor(st.st_dev), &target_stx->stx_dev_minor); |
10355 | __put_user(st.st_ino, &target_stx->stx_ino); |
10356 | __put_user(st.st_mode, &target_stx->stx_mode); |
10357 | __put_user(st.st_uid, &target_stx->stx_uid); |
10358 | __put_user(st.st_gid, &target_stx->stx_gid); |
10359 | __put_user(st.st_nlink, &target_stx->stx_nlink); |
10360 | __put_user(major(st.st_rdev), &target_stx->stx_rdev_major); |
10361 | __put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor); |
10362 | __put_user(st.st_size, &target_stx->stx_size); |
10363 | __put_user(st.st_blksize, &target_stx->stx_blksize); |
10364 | __put_user(st.st_blocks, &target_stx->stx_blocks); |
10365 | __put_user(st.st_atime, &target_stx->stx_atime.tv_sec); |
10366 | __put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec); |
10367 | __put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec); |
10368 | unlock_user_struct(target_stx, arg5, 1); |
10369 | } |
10370 | } |
10371 | return ret; |
10372 | #endif |
10373 | #ifdef TARGET_NR_lchown |
10374 | case TARGET_NR_lchown: |
10375 | if (!(p = lock_user_string(arg1))) |
10376 | return -TARGET_EFAULT; |
10377 | ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); |
10378 | unlock_user(p, arg1, 0); |
10379 | return ret; |
10380 | #endif |
10381 | #ifdef TARGET_NR_getuid |
10382 | case TARGET_NR_getuid: |
10383 | return get_errno(high2lowuid(getuid())); |
10384 | #endif |
10385 | #ifdef TARGET_NR_getgid |
10386 | case TARGET_NR_getgid: |
10387 | return get_errno(high2lowgid(getgid())); |
10388 | #endif |
10389 | #ifdef TARGET_NR_geteuid |
10390 | case TARGET_NR_geteuid: |
10391 | return get_errno(high2lowuid(geteuid())); |
10392 | #endif |
10393 | #ifdef TARGET_NR_getegid |
10394 | case TARGET_NR_getegid: |
10395 | return get_errno(high2lowgid(getegid())); |
10396 | #endif |
10397 | case TARGET_NR_setreuid: |
10398 | return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); |
10399 | case TARGET_NR_setregid: |
10400 | return get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); |
10401 | case TARGET_NR_getgroups: |
10402 | { |
10403 | int gidsetsize = arg1; |
10404 | target_id *target_grouplist; |
10405 | gid_t *grouplist; |
10406 | int i; |
10407 | |
10408 | grouplist = alloca(gidsetsize * sizeof(gid_t)); |
10409 | ret = get_errno(getgroups(gidsetsize, grouplist)); |
10410 | if (gidsetsize == 0) |
10411 | return ret; |
10412 | if (!is_error(ret)) { |
10413 | target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0); |
10414 | if (!target_grouplist) |
10415 | return -TARGET_EFAULT; |
10416 | for(i = 0;i < ret; i++) |
10417 | target_grouplist[i] = tswapid(high2lowgid(grouplist[i])); |
10418 | unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id)); |
10419 | } |
10420 | } |
10421 | return ret; |
10422 | case TARGET_NR_setgroups: |
10423 | { |
10424 | int gidsetsize = arg1; |
10425 | target_id *target_grouplist; |
10426 | gid_t *grouplist = NULL; |
10427 | int i; |
10428 | if (gidsetsize) { |
10429 | grouplist = alloca(gidsetsize * sizeof(gid_t)); |
10430 | target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1); |
10431 | if (!target_grouplist) { |
10432 | return -TARGET_EFAULT; |
10433 | } |
10434 | for (i = 0; i < gidsetsize; i++) { |
10435 | grouplist[i] = low2highgid(tswapid(target_grouplist[i])); |
10436 | } |
10437 | unlock_user(target_grouplist, arg2, 0); |
10438 | } |
10439 | return get_errno(setgroups(gidsetsize, grouplist)); |
10440 | } |
10441 | case TARGET_NR_fchown: |
10442 | return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); |
10443 | #if defined(TARGET_NR_fchownat) |
10444 | case TARGET_NR_fchownat: |
10445 | if (!(p = lock_user_string(arg2))) |
10446 | return -TARGET_EFAULT; |
10447 | ret = get_errno(fchownat(arg1, p, low2highuid(arg3), |
10448 | low2highgid(arg4), arg5)); |
10449 | unlock_user(p, arg2, 0); |
10450 | return ret; |
10451 | #endif |
10452 | #ifdef TARGET_NR_setresuid |
10453 | case TARGET_NR_setresuid: |
10454 | return get_errno(sys_setresuid(low2highuid(arg1), |
10455 | low2highuid(arg2), |
10456 | low2highuid(arg3))); |
10457 | #endif |
10458 | #ifdef TARGET_NR_getresuid |
10459 | case TARGET_NR_getresuid: |
10460 | { |
10461 | uid_t ruid, euid, suid; |
10462 | ret = get_errno(getresuid(&ruid, &euid, &suid)); |
10463 | if (!is_error(ret)) { |
10464 | if (put_user_id(high2lowuid(ruid), arg1) |
10465 | || put_user_id(high2lowuid(euid), arg2) |
10466 | || put_user_id(high2lowuid(suid), arg3)) |
10467 | return -TARGET_EFAULT; |
10468 | } |
10469 | } |
10470 | return ret; |
10471 | #endif |
10472 | #ifdef TARGET_NR_getresgid |
10473 | case TARGET_NR_setresgid: |
10474 | return get_errno(sys_setresgid(low2highgid(arg1), |
10475 | low2highgid(arg2), |
10476 | low2highgid(arg3))); |
10477 | #endif |
10478 | #ifdef TARGET_NR_getresgid |
10479 | case TARGET_NR_getresgid: |
10480 | { |
10481 | gid_t rgid, egid, sgid; |
10482 | ret = get_errno(getresgid(&rgid, &egid, &sgid)); |
10483 | if (!is_error(ret)) { |
10484 | if (put_user_id(high2lowgid(rgid), arg1) |
10485 | || put_user_id(high2lowgid(egid), arg2) |
10486 | || put_user_id(high2lowgid(sgid), arg3)) |
10487 | return -TARGET_EFAULT; |
10488 | } |
10489 | } |
10490 | return ret; |
10491 | #endif |
10492 | #ifdef TARGET_NR_chown |
10493 | case TARGET_NR_chown: |
10494 | if (!(p = lock_user_string(arg1))) |
10495 | return -TARGET_EFAULT; |
10496 | ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); |
10497 | unlock_user(p, arg1, 0); |
10498 | return ret; |
10499 | #endif |
10500 | case TARGET_NR_setuid: |
10501 | return get_errno(sys_setuid(low2highuid(arg1))); |
10502 | case TARGET_NR_setgid: |
10503 | return get_errno(sys_setgid(low2highgid(arg1))); |
10504 | case TARGET_NR_setfsuid: |
10505 | return get_errno(setfsuid(arg1)); |
10506 | case TARGET_NR_setfsgid: |
10507 | return get_errno(setfsgid(arg1)); |
10508 | |
10509 | #ifdef TARGET_NR_lchown32 |
10510 | case TARGET_NR_lchown32: |
10511 | if (!(p = lock_user_string(arg1))) |
10512 | return -TARGET_EFAULT; |
10513 | ret = get_errno(lchown(p, arg2, arg3)); |
10514 | unlock_user(p, arg1, 0); |
10515 | return ret; |
10516 | #endif |
10517 | #ifdef TARGET_NR_getuid32 |
10518 | case TARGET_NR_getuid32: |
10519 | return get_errno(getuid()); |
10520 | #endif |
10521 | |
10522 | #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) |
10523 | /* Alpha specific */ |
10524 | case TARGET_NR_getxuid: |
10525 | { |
10526 | uid_t euid; |
10527 | euid=geteuid(); |
10528 | ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; |
10529 | } |
10530 | return get_errno(getuid()); |
10531 | #endif |
10532 | #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) |
10533 | /* Alpha specific */ |
10534 | case TARGET_NR_getxgid: |
10535 | { |
10536 | uid_t egid; |
10537 | egid=getegid(); |
10538 | ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; |
10539 | } |
10540 | return get_errno(getgid()); |
10541 | #endif |
10542 | #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) |
10543 | /* Alpha specific */ |
10544 | case TARGET_NR_osf_getsysinfo: |
10545 | ret = -TARGET_EOPNOTSUPP; |
10546 | switch (arg1) { |
10547 | case TARGET_GSI_IEEE_FP_CONTROL: |
10548 | { |
10549 | uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env); |
10550 | uint64_t swcr = ((CPUAlphaState *)cpu_env)->swcr; |
10551 | |
10552 | swcr &= ~SWCR_STATUS_MASK; |
10553 | swcr |= (fpcr >> 35) & SWCR_STATUS_MASK; |
10554 | |
10555 | if (put_user_u64 (swcr, arg2)) |
10556 | return -TARGET_EFAULT; |
10557 | ret = 0; |
10558 | } |
10559 | break; |
10560 | |
10561 | /* case GSI_IEEE_STATE_AT_SIGNAL: |
10562 | -- Not implemented in linux kernel. |
10563 | case GSI_UACPROC: |
10564 | -- Retrieves current unaligned access state; not much used. |
10565 | case GSI_PROC_TYPE: |
10566 | -- Retrieves implver information; surely not used. |
10567 | case GSI_GET_HWRPB: |
10568 | -- Grabs a copy of the HWRPB; surely not used. |
10569 | */ |
10570 | } |
10571 | return ret; |
10572 | #endif |
10573 | #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) |
10574 | /* Alpha specific */ |
10575 | case TARGET_NR_osf_setsysinfo: |
10576 | ret = -TARGET_EOPNOTSUPP; |
10577 | switch (arg1) { |
10578 | case TARGET_SSI_IEEE_FP_CONTROL: |
10579 | { |
10580 | uint64_t swcr, fpcr; |
10581 | |
10582 | if (get_user_u64 (swcr, arg2)) { |
10583 | return -TARGET_EFAULT; |
10584 | } |
10585 | |
10586 | /* |
10587 | * The kernel calls swcr_update_status to update the |
10588 | * status bits from the fpcr at every point that it |
10589 | * could be queried. Therefore, we store the status |
10590 | * bits only in FPCR. |
10591 | */ |
10592 | ((CPUAlphaState *)cpu_env)->swcr |
10593 | = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK); |
10594 | |
10595 | fpcr = cpu_alpha_load_fpcr(cpu_env); |
10596 | fpcr &= ((uint64_t)FPCR_DYN_MASK << 32); |
10597 | fpcr |= alpha_ieee_swcr_to_fpcr(swcr); |
10598 | cpu_alpha_store_fpcr(cpu_env, fpcr); |
10599 | ret = 0; |
10600 | } |
10601 | break; |
10602 | |
10603 | case TARGET_SSI_IEEE_RAISE_EXCEPTION: |
10604 | { |
10605 | uint64_t exc, fpcr, fex; |
10606 | |
10607 | if (get_user_u64(exc, arg2)) { |
10608 | return -TARGET_EFAULT; |
10609 | } |
10610 | exc &= SWCR_STATUS_MASK; |
10611 | fpcr = cpu_alpha_load_fpcr(cpu_env); |
10612 | |
10613 | /* Old exceptions are not signaled. */ |
10614 | fex = alpha_ieee_fpcr_to_swcr(fpcr); |
10615 | fex = exc & ~fex; |
10616 | fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT; |
10617 | fex &= ((CPUArchState *)cpu_env)->swcr; |
10618 | |
10619 | /* Update the hardware fpcr. */ |
10620 | fpcr |= alpha_ieee_swcr_to_fpcr(exc); |
10621 | cpu_alpha_store_fpcr(cpu_env, fpcr); |
10622 | |
10623 | if (fex) { |
10624 | int si_code = TARGET_FPE_FLTUNK; |
10625 | target_siginfo_t info; |
10626 | |
10627 | if (fex & SWCR_TRAP_ENABLE_DNO) { |
10628 | si_code = TARGET_FPE_FLTUND; |
10629 | } |
10630 | if (fex & SWCR_TRAP_ENABLE_INE) { |
10631 | si_code = TARGET_FPE_FLTRES; |
10632 | } |
10633 | if (fex & SWCR_TRAP_ENABLE_UNF) { |
10634 | si_code = TARGET_FPE_FLTUND; |
10635 | } |
10636 | if (fex & SWCR_TRAP_ENABLE_OVF) { |
10637 | si_code = TARGET_FPE_FLTOVF; |
10638 | } |
10639 | if (fex & SWCR_TRAP_ENABLE_DZE) { |
10640 | si_code = TARGET_FPE_FLTDIV; |
10641 | } |
10642 | if (fex & SWCR_TRAP_ENABLE_INV) { |
10643 | si_code = TARGET_FPE_FLTINV; |
10644 | } |
10645 | |
10646 | info.si_signo = SIGFPE; |
10647 | info.si_errno = 0; |
10648 | info.si_code = si_code; |
10649 | info._sifields._sigfault._addr |
10650 | = ((CPUArchState *)cpu_env)->pc; |
10651 | queue_signal((CPUArchState *)cpu_env, info.si_signo, |
10652 | QEMU_SI_FAULT, &info); |
10653 | } |
10654 | ret = 0; |
10655 | } |
10656 | break; |
10657 | |
10658 | /* case SSI_NVPAIRS: |
10659 | -- Used with SSIN_UACPROC to enable unaligned accesses. |
10660 | case SSI_IEEE_STATE_AT_SIGNAL: |
10661 | case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: |
10662 | -- Not implemented in linux kernel |
10663 | */ |
10664 | } |
10665 | return ret; |
10666 | #endif |
10667 | #ifdef TARGET_NR_osf_sigprocmask |
10668 | /* Alpha specific. */ |
10669 | case TARGET_NR_osf_sigprocmask: |
10670 | { |
10671 | abi_ulong mask; |
10672 | int how; |
10673 | sigset_t set, oldset; |
10674 | |
10675 | switch(arg1) { |
10676 | case TARGET_SIG_BLOCK: |
10677 | how = SIG_BLOCK; |
10678 | break; |
10679 | case TARGET_SIG_UNBLOCK: |
10680 | how = SIG_UNBLOCK; |
10681 | break; |
10682 | case TARGET_SIG_SETMASK: |
10683 | how = SIG_SETMASK; |
10684 | break; |
10685 | default: |
10686 | return -TARGET_EINVAL; |
10687 | } |
10688 | mask = arg2; |
10689 | target_to_host_old_sigset(&set, &mask); |
10690 | ret = do_sigprocmask(how, &set, &oldset); |
10691 | if (!ret) { |
10692 | host_to_target_old_sigset(&mask, &oldset); |
10693 | ret = mask; |
10694 | } |
10695 | } |
10696 | return ret; |
10697 | #endif |
10698 | |
10699 | #ifdef TARGET_NR_getgid32 |
10700 | case TARGET_NR_getgid32: |
10701 | return get_errno(getgid()); |
10702 | #endif |
10703 | #ifdef TARGET_NR_geteuid32 |
10704 | case TARGET_NR_geteuid32: |
10705 | return get_errno(geteuid()); |
10706 | #endif |
10707 | #ifdef TARGET_NR_getegid32 |
10708 | case TARGET_NR_getegid32: |
10709 | return get_errno(getegid()); |
10710 | #endif |
10711 | #ifdef TARGET_NR_setreuid32 |
10712 | case TARGET_NR_setreuid32: |
10713 | return get_errno(setreuid(arg1, arg2)); |
10714 | #endif |
10715 | #ifdef TARGET_NR_setregid32 |
10716 | case TARGET_NR_setregid32: |
10717 | return get_errno(setregid(arg1, arg2)); |
10718 | #endif |
10719 | #ifdef TARGET_NR_getgroups32 |
10720 | case TARGET_NR_getgroups32: |
10721 | { |
10722 | int gidsetsize = arg1; |
10723 | uint32_t *target_grouplist; |
10724 | gid_t *grouplist; |
10725 | int i; |
10726 | |
10727 | grouplist = alloca(gidsetsize * sizeof(gid_t)); |
10728 | ret = get_errno(getgroups(gidsetsize, grouplist)); |
10729 | if (gidsetsize == 0) |
10730 | return ret; |
10731 | if (!is_error(ret)) { |
10732 | target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); |
10733 | if (!target_grouplist) { |
10734 | return -TARGET_EFAULT; |
10735 | } |
10736 | for(i = 0;i < ret; i++) |
10737 | target_grouplist[i] = tswap32(grouplist[i]); |
10738 | unlock_user(target_grouplist, arg2, gidsetsize * 4); |
10739 | } |
10740 | } |
10741 | return ret; |
10742 | #endif |
10743 | #ifdef TARGET_NR_setgroups32 |
10744 | case TARGET_NR_setgroups32: |
10745 | { |
10746 | int gidsetsize = arg1; |
10747 | uint32_t *target_grouplist; |
10748 | gid_t *grouplist; |
10749 | int i; |
10750 | |
10751 | grouplist = alloca(gidsetsize * sizeof(gid_t)); |
10752 | target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); |
10753 | if (!target_grouplist) { |
10754 | return -TARGET_EFAULT; |
10755 | } |
10756 | for(i = 0;i < gidsetsize; i++) |
10757 | grouplist[i] = tswap32(target_grouplist[i]); |
10758 | unlock_user(target_grouplist, arg2, 0); |
10759 | return get_errno(setgroups(gidsetsize, grouplist)); |
10760 | } |
10761 | #endif |
10762 | #ifdef TARGET_NR_fchown32 |
10763 | case TARGET_NR_fchown32: |
10764 | return get_errno(fchown(arg1, arg2, arg3)); |
10765 | #endif |
10766 | #ifdef TARGET_NR_setresuid32 |
10767 | case TARGET_NR_setresuid32: |
10768 | return get_errno(sys_setresuid(arg1, arg2, arg3)); |
10769 | #endif |
10770 | #ifdef TARGET_NR_getresuid32 |
10771 | case TARGET_NR_getresuid32: |
10772 | { |
10773 | uid_t ruid, euid, suid; |
10774 | ret = get_errno(getresuid(&ruid, &euid, &suid)); |
10775 | if (!is_error(ret)) { |
10776 | if (put_user_u32(ruid, arg1) |
10777 | || put_user_u32(euid, arg2) |
10778 | || put_user_u32(suid, arg3)) |
10779 | return -TARGET_EFAULT; |
10780 | } |
10781 | } |
10782 | return ret; |
10783 | #endif |
10784 | #ifdef TARGET_NR_setresgid32 |
10785 | case TARGET_NR_setresgid32: |
10786 | return get_errno(sys_setresgid(arg1, arg2, arg3)); |
10787 | #endif |
10788 | #ifdef TARGET_NR_getresgid32 |
10789 | case TARGET_NR_getresgid32: |
10790 | { |
10791 | gid_t rgid, egid, sgid; |
10792 | ret = get_errno(getresgid(&rgid, &egid, &sgid)); |
10793 | if (!is_error(ret)) { |
10794 | if (put_user_u32(rgid, arg1) |
10795 | || put_user_u32(egid, arg2) |
10796 | || put_user_u32(sgid, arg3)) |
10797 | return -TARGET_EFAULT; |
10798 | } |
10799 | } |
10800 | return ret; |
10801 | #endif |
10802 | #ifdef TARGET_NR_chown32 |
10803 | case TARGET_NR_chown32: |
10804 | if (!(p = lock_user_string(arg1))) |
10805 | return -TARGET_EFAULT; |
10806 | ret = get_errno(chown(p, arg2, arg3)); |
10807 | unlock_user(p, arg1, 0); |
10808 | return ret; |
10809 | #endif |
10810 | #ifdef TARGET_NR_setuid32 |
10811 | case TARGET_NR_setuid32: |
10812 | return get_errno(sys_setuid(arg1)); |
10813 | #endif |
10814 | #ifdef TARGET_NR_setgid32 |
10815 | case TARGET_NR_setgid32: |
10816 | return get_errno(sys_setgid(arg1)); |
10817 | #endif |
10818 | #ifdef TARGET_NR_setfsuid32 |
10819 | case TARGET_NR_setfsuid32: |
10820 | return get_errno(setfsuid(arg1)); |
10821 | #endif |
10822 | #ifdef TARGET_NR_setfsgid32 |
10823 | case TARGET_NR_setfsgid32: |
10824 | return get_errno(setfsgid(arg1)); |
10825 | #endif |
10826 | #ifdef TARGET_NR_mincore |
10827 | case TARGET_NR_mincore: |
10828 | { |
10829 | void *a = lock_user(VERIFY_READ, arg1, arg2, 0); |
10830 | if (!a) { |
10831 | return -TARGET_ENOMEM; |
10832 | } |
10833 | p = lock_user_string(arg3); |
10834 | if (!p) { |
10835 | ret = -TARGET_EFAULT; |
10836 | } else { |
10837 | ret = get_errno(mincore(a, arg2, p)); |
10838 | unlock_user(p, arg3, ret); |
10839 | } |
10840 | unlock_user(a, arg1, 0); |
10841 | } |
10842 | return ret; |
10843 | #endif |
10844 | #ifdef TARGET_NR_arm_fadvise64_64 |
10845 | case TARGET_NR_arm_fadvise64_64: |
10846 | /* arm_fadvise64_64 looks like fadvise64_64 but |
10847 | * with different argument order: fd, advice, offset, len |
10848 | * rather than the usual fd, offset, len, advice. |
10849 | * Note that offset and len are both 64-bit so appear as |
10850 | * pairs of 32-bit registers. |
10851 | */ |
10852 | ret = posix_fadvise(arg1, target_offset64(arg3, arg4), |
10853 | target_offset64(arg5, arg6), arg2); |
10854 | return -host_to_target_errno(ret); |
10855 | #endif |
10856 | |
10857 | #if TARGET_ABI_BITS == 32 |
10858 | |
10859 | #ifdef TARGET_NR_fadvise64_64 |
10860 | case TARGET_NR_fadvise64_64: |
10861 | #if defined(TARGET_PPC) || defined(TARGET_XTENSA) |
10862 | /* 6 args: fd, advice, offset (high, low), len (high, low) */ |
10863 | ret = arg2; |
10864 | arg2 = arg3; |
10865 | arg3 = arg4; |
10866 | arg4 = arg5; |
10867 | arg5 = arg6; |
10868 | arg6 = ret; |
10869 | #else |
10870 | /* 6 args: fd, offset (high, low), len (high, low), advice */ |
10871 | if (regpairs_aligned(cpu_env, num)) { |
10872 | /* offset is in (3,4), len in (5,6) and advice in 7 */ |
10873 | arg2 = arg3; |
10874 | arg3 = arg4; |
10875 | arg4 = arg5; |
10876 | arg5 = arg6; |
10877 | arg6 = arg7; |
10878 | } |
10879 | #endif |
10880 | ret = posix_fadvise(arg1, target_offset64(arg2, arg3), |
10881 | target_offset64(arg4, arg5), arg6); |
10882 | return -host_to_target_errno(ret); |
10883 | #endif |
10884 | |
10885 | #ifdef TARGET_NR_fadvise64 |
10886 | case TARGET_NR_fadvise64: |
10887 | /* 5 args: fd, offset (high, low), len, advice */ |
10888 | if (regpairs_aligned(cpu_env, num)) { |
10889 | /* offset is in (3,4), len in 5 and advice in 6 */ |
10890 | arg2 = arg3; |
10891 | arg3 = arg4; |
10892 | arg4 = arg5; |
10893 | arg5 = arg6; |
10894 | } |
10895 | ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5); |
10896 | return -host_to_target_errno(ret); |
10897 | #endif |
10898 | |
10899 | #else /* not a 32-bit ABI */ |
10900 | #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64) |
10901 | #ifdef TARGET_NR_fadvise64_64 |
10902 | case TARGET_NR_fadvise64_64: |
10903 | #endif |
10904 | #ifdef TARGET_NR_fadvise64 |
10905 | case TARGET_NR_fadvise64: |
10906 | #endif |
10907 | #ifdef TARGET_S390X |
10908 | switch (arg4) { |
10909 | case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ |
10910 | case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ |
10911 | case 6: arg4 = POSIX_FADV_DONTNEED; break; |
10912 | case 7: arg4 = POSIX_FADV_NOREUSE; break; |
10913 | default: break; |
10914 | } |
10915 | #endif |
10916 | return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4)); |
10917 | #endif |
10918 | #endif /* end of 64-bit ABI fadvise handling */ |
10919 | |
10920 | #ifdef TARGET_NR_madvise |
10921 | case TARGET_NR_madvise: |
10922 | /* A straight passthrough may not be safe because qemu sometimes |
10923 | turns private file-backed mappings into anonymous mappings. |
10924 | This will break MADV_DONTNEED. |
10925 | This is a hint, so ignoring and returning success is ok. */ |
10926 | return 0; |
10927 | #endif |
10928 | #if TARGET_ABI_BITS == 32 |
10929 | case TARGET_NR_fcntl64: |
10930 | { |
10931 | int cmd; |
10932 | struct flock64 fl; |
10933 | from_flock64_fn *copyfrom = copy_from_user_flock64; |
10934 | to_flock64_fn *copyto = copy_to_user_flock64; |
10935 | |
10936 | #ifdef TARGET_ARM |
10937 | if (!((CPUARMState *)cpu_env)->eabi) { |
10938 | copyfrom = copy_from_user_oabi_flock64; |
10939 | copyto = copy_to_user_oabi_flock64; |
10940 | } |
10941 | #endif |
10942 | |
10943 | cmd = target_to_host_fcntl_cmd(arg2); |
10944 | if (cmd == -TARGET_EINVAL) { |
10945 | return cmd; |
10946 | } |
10947 | |
10948 | switch(arg2) { |
10949 | case TARGET_F_GETLK64: |
10950 | ret = copyfrom(&fl, arg3); |
10951 | if (ret) { |
10952 | break; |
10953 | } |
10954 | ret = get_errno(safe_fcntl(arg1, cmd, &fl)); |
10955 | if (ret == 0) { |
10956 | ret = copyto(arg3, &fl); |
10957 | } |
10958 | break; |
10959 | |
10960 | case TARGET_F_SETLK64: |
10961 | case TARGET_F_SETLKW64: |
10962 | ret = copyfrom(&fl, arg3); |
10963 | if (ret) { |
10964 | break; |
10965 | } |
10966 | ret = get_errno(safe_fcntl(arg1, cmd, &fl)); |
10967 | break; |
10968 | default: |
10969 | ret = do_fcntl(arg1, arg2, arg3); |
10970 | break; |
10971 | } |
10972 | return ret; |
10973 | } |
10974 | #endif |
10975 | #ifdef TARGET_NR_cacheflush |
10976 | case TARGET_NR_cacheflush: |
10977 | /* self-modifying code is handled automatically, so nothing needed */ |
10978 | return 0; |
10979 | #endif |
10980 | #ifdef TARGET_NR_getpagesize |
10981 | case TARGET_NR_getpagesize: |
10982 | return TARGET_PAGE_SIZE; |
10983 | #endif |
10984 | case TARGET_NR_gettid: |
10985 | return get_errno(sys_gettid()); |
10986 | #ifdef TARGET_NR_readahead |
10987 | case TARGET_NR_readahead: |
10988 | #if TARGET_ABI_BITS == 32 |
10989 | if (regpairs_aligned(cpu_env, num)) { |
10990 | arg2 = arg3; |
10991 | arg3 = arg4; |
10992 | arg4 = arg5; |
10993 | } |
10994 | ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4)); |
10995 | #else |
10996 | ret = get_errno(readahead(arg1, arg2, arg3)); |
10997 | #endif |
10998 | return ret; |
10999 | #endif |
11000 | #ifdef CONFIG_ATTR |
11001 | #ifdef TARGET_NR_setxattr |
11002 | case TARGET_NR_listxattr: |
11003 | case TARGET_NR_llistxattr: |
11004 | { |
11005 | void *p, *b = 0; |
11006 | if (arg2) { |
11007 | b = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
11008 | if (!b) { |
11009 | return -TARGET_EFAULT; |
11010 | } |
11011 | } |
11012 | p = lock_user_string(arg1); |
11013 | if (p) { |
11014 | if (num == TARGET_NR_listxattr) { |
11015 | ret = get_errno(listxattr(p, b, arg3)); |
11016 | } else { |
11017 | ret = get_errno(llistxattr(p, b, arg3)); |
11018 | } |
11019 | } else { |
11020 | ret = -TARGET_EFAULT; |
11021 | } |
11022 | unlock_user(p, arg1, 0); |
11023 | unlock_user(b, arg2, arg3); |
11024 | return ret; |
11025 | } |
11026 | case TARGET_NR_flistxattr: |
11027 | { |
11028 | void *b = 0; |
11029 | if (arg2) { |
11030 | b = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
11031 | if (!b) { |
11032 | return -TARGET_EFAULT; |
11033 | } |
11034 | } |
11035 | ret = get_errno(flistxattr(arg1, b, arg3)); |
11036 | unlock_user(b, arg2, arg3); |
11037 | return ret; |
11038 | } |
11039 | case TARGET_NR_setxattr: |
11040 | case TARGET_NR_lsetxattr: |
11041 | { |
11042 | void *p, *n, *v = 0; |
11043 | if (arg3) { |
11044 | v = lock_user(VERIFY_READ, arg3, arg4, 1); |
11045 | if (!v) { |
11046 | return -TARGET_EFAULT; |
11047 | } |
11048 | } |
11049 | p = lock_user_string(arg1); |
11050 | n = lock_user_string(arg2); |
11051 | if (p && n) { |
11052 | if (num == TARGET_NR_setxattr) { |
11053 | ret = get_errno(setxattr(p, n, v, arg4, arg5)); |
11054 | } else { |
11055 | ret = get_errno(lsetxattr(p, n, v, arg4, arg5)); |
11056 | } |
11057 | } else { |
11058 | ret = -TARGET_EFAULT; |
11059 | } |
11060 | unlock_user(p, arg1, 0); |
11061 | unlock_user(n, arg2, 0); |
11062 | unlock_user(v, arg3, 0); |
11063 | } |
11064 | return ret; |
11065 | case TARGET_NR_fsetxattr: |
11066 | { |
11067 | void *n, *v = 0; |
11068 | if (arg3) { |
11069 | v = lock_user(VERIFY_READ, arg3, arg4, 1); |
11070 | if (!v) { |
11071 | return -TARGET_EFAULT; |
11072 | } |
11073 | } |
11074 | n = lock_user_string(arg2); |
11075 | if (n) { |
11076 | ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5)); |
11077 | } else { |
11078 | ret = -TARGET_EFAULT; |
11079 | } |
11080 | unlock_user(n, arg2, 0); |
11081 | unlock_user(v, arg3, 0); |
11082 | } |
11083 | return ret; |
11084 | case TARGET_NR_getxattr: |
11085 | case TARGET_NR_lgetxattr: |
11086 | { |
11087 | void *p, *n, *v = 0; |
11088 | if (arg3) { |
11089 | v = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
11090 | if (!v) { |
11091 | return -TARGET_EFAULT; |
11092 | } |
11093 | } |
11094 | p = lock_user_string(arg1); |
11095 | n = lock_user_string(arg2); |
11096 | if (p && n) { |
11097 | if (num == TARGET_NR_getxattr) { |
11098 | ret = get_errno(getxattr(p, n, v, arg4)); |
11099 | } else { |
11100 | ret = get_errno(lgetxattr(p, n, v, arg4)); |
11101 | } |
11102 | } else { |
11103 | ret = -TARGET_EFAULT; |
11104 | } |
11105 | unlock_user(p, arg1, 0); |
11106 | unlock_user(n, arg2, 0); |
11107 | unlock_user(v, arg3, arg4); |
11108 | } |
11109 | return ret; |
11110 | case TARGET_NR_fgetxattr: |
11111 | { |
11112 | void *n, *v = 0; |
11113 | if (arg3) { |
11114 | v = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
11115 | if (!v) { |
11116 | return -TARGET_EFAULT; |
11117 | } |
11118 | } |
11119 | n = lock_user_string(arg2); |
11120 | if (n) { |
11121 | ret = get_errno(fgetxattr(arg1, n, v, arg4)); |
11122 | } else { |
11123 | ret = -TARGET_EFAULT; |
11124 | } |
11125 | unlock_user(n, arg2, 0); |
11126 | unlock_user(v, arg3, arg4); |
11127 | } |
11128 | return ret; |
11129 | case TARGET_NR_removexattr: |
11130 | case TARGET_NR_lremovexattr: |
11131 | { |
11132 | void *p, *n; |
11133 | p = lock_user_string(arg1); |
11134 | n = lock_user_string(arg2); |
11135 | if (p && n) { |
11136 | if (num == TARGET_NR_removexattr) { |
11137 | ret = get_errno(removexattr(p, n)); |
11138 | } else { |
11139 | ret = get_errno(lremovexattr(p, n)); |
11140 | } |
11141 | } else { |
11142 | ret = -TARGET_EFAULT; |
11143 | } |
11144 | unlock_user(p, arg1, 0); |
11145 | unlock_user(n, arg2, 0); |
11146 | } |
11147 | return ret; |
11148 | case TARGET_NR_fremovexattr: |
11149 | { |
11150 | void *n; |
11151 | n = lock_user_string(arg2); |
11152 | if (n) { |
11153 | ret = get_errno(fremovexattr(arg1, n)); |
11154 | } else { |
11155 | ret = -TARGET_EFAULT; |
11156 | } |
11157 | unlock_user(n, arg2, 0); |
11158 | } |
11159 | return ret; |
11160 | #endif |
11161 | #endif /* CONFIG_ATTR */ |
11162 | #ifdef TARGET_NR_set_thread_area |
11163 | case TARGET_NR_set_thread_area: |
11164 | #if defined(TARGET_MIPS) |
11165 | ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1; |
11166 | return 0; |
11167 | #elif defined(TARGET_CRIS) |
11168 | if (arg1 & 0xff) |
11169 | ret = -TARGET_EINVAL; |
11170 | else { |
11171 | ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; |
11172 | ret = 0; |
11173 | } |
11174 | return ret; |
11175 | #elif defined(TARGET_I386) && defined(TARGET_ABI32) |
11176 | return do_set_thread_area(cpu_env, arg1); |
11177 | #elif defined(TARGET_M68K) |
11178 | { |
11179 | TaskState *ts = cpu->opaque; |
11180 | ts->tp_value = arg1; |
11181 | return 0; |
11182 | } |
11183 | #else |
11184 | return -TARGET_ENOSYS; |
11185 | #endif |
11186 | #endif |
11187 | #ifdef TARGET_NR_get_thread_area |
11188 | case TARGET_NR_get_thread_area: |
11189 | #if defined(TARGET_I386) && defined(TARGET_ABI32) |
11190 | return do_get_thread_area(cpu_env, arg1); |
11191 | #elif defined(TARGET_M68K) |
11192 | { |
11193 | TaskState *ts = cpu->opaque; |
11194 | return ts->tp_value; |
11195 | } |
11196 | #else |
11197 | return -TARGET_ENOSYS; |
11198 | #endif |
11199 | #endif |
11200 | #ifdef TARGET_NR_getdomainname |
11201 | case TARGET_NR_getdomainname: |
11202 | return -TARGET_ENOSYS; |
11203 | #endif |
11204 | |
11205 | #ifdef TARGET_NR_clock_settime |
11206 | case TARGET_NR_clock_settime: |
11207 | { |
11208 | struct timespec ts; |
11209 | |
11210 | ret = target_to_host_timespec(&ts, arg2); |
11211 | if (!is_error(ret)) { |
11212 | ret = get_errno(clock_settime(arg1, &ts)); |
11213 | } |
11214 | return ret; |
11215 | } |
11216 | #endif |
11217 | #ifdef TARGET_NR_clock_gettime |
11218 | case TARGET_NR_clock_gettime: |
11219 | { |
11220 | struct timespec ts; |
11221 | ret = get_errno(clock_gettime(arg1, &ts)); |
11222 | if (!is_error(ret)) { |
11223 | ret = host_to_target_timespec(arg2, &ts); |
11224 | } |
11225 | return ret; |
11226 | } |
11227 | #endif |
11228 | #ifdef TARGET_NR_clock_getres |
11229 | case TARGET_NR_clock_getres: |
11230 | { |
11231 | struct timespec ts; |
11232 | ret = get_errno(clock_getres(arg1, &ts)); |
11233 | if (!is_error(ret)) { |
11234 | host_to_target_timespec(arg2, &ts); |
11235 | } |
11236 | return ret; |
11237 | } |
11238 | #endif |
11239 | #ifdef TARGET_NR_clock_nanosleep |
11240 | case TARGET_NR_clock_nanosleep: |
11241 | { |
11242 | struct timespec ts; |
11243 | target_to_host_timespec(&ts, arg3); |
11244 | ret = get_errno(safe_clock_nanosleep(arg1, arg2, |
11245 | &ts, arg4 ? &ts : NULL)); |
11246 | if (arg4) |
11247 | host_to_target_timespec(arg4, &ts); |
11248 | |
11249 | #if defined(TARGET_PPC) |
11250 | /* clock_nanosleep is odd in that it returns positive errno values. |
11251 | * On PPC, CR0 bit 3 should be set in such a situation. */ |
11252 | if (ret && ret != -TARGET_ERESTARTSYS) { |
11253 | ((CPUPPCState *)cpu_env)->crf[0] |= 1; |
11254 | } |
11255 | #endif |
11256 | return ret; |
11257 | } |
11258 | #endif |
11259 | |
11260 | #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) |
11261 | case TARGET_NR_set_tid_address: |
11262 | return get_errno(set_tid_address((int *)g2h(arg1))); |
11263 | #endif |
11264 | |
11265 | case TARGET_NR_tkill: |
11266 | return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2))); |
11267 | |
11268 | case TARGET_NR_tgkill: |
11269 | return get_errno(safe_tgkill((int)arg1, (int)arg2, |
11270 | target_to_host_signal(arg3))); |
11271 | |
11272 | #ifdef TARGET_NR_set_robust_list |
11273 | case TARGET_NR_set_robust_list: |
11274 | case TARGET_NR_get_robust_list: |
11275 | /* The ABI for supporting robust futexes has userspace pass |
11276 | * the kernel a pointer to a linked list which is updated by |
11277 | * userspace after the syscall; the list is walked by the kernel |
11278 | * when the thread exits. Since the linked list in QEMU guest |
11279 | * memory isn't a valid linked list for the host and we have |
11280 | * no way to reliably intercept the thread-death event, we can't |
11281 | * support these. Silently return ENOSYS so that guest userspace |
11282 | * falls back to a non-robust futex implementation (which should |
11283 | * be OK except in the corner case of the guest crashing while |
11284 | * holding a mutex that is shared with another process via |
11285 | * shared memory). |
11286 | */ |
11287 | return -TARGET_ENOSYS; |
11288 | #endif |
11289 | |
11290 | #if defined(TARGET_NR_utimensat) |
11291 | case TARGET_NR_utimensat: |
11292 | { |
11293 | struct timespec *tsp, ts[2]; |
11294 | if (!arg3) { |
11295 | tsp = NULL; |
11296 | } else { |
11297 | target_to_host_timespec(ts, arg3); |
11298 | target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); |
11299 | tsp = ts; |
11300 | } |
11301 | if (!arg2) |
11302 | ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); |
11303 | else { |
11304 | if (!(p = lock_user_string(arg2))) { |
11305 | return -TARGET_EFAULT; |
11306 | } |
11307 | ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); |
11308 | unlock_user(p, arg2, 0); |
11309 | } |
11310 | } |
11311 | return ret; |
11312 | #endif |
11313 | case TARGET_NR_futex: |
11314 | return do_futex(arg1, arg2, arg3, arg4, arg5, arg6); |
11315 | #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) |
11316 | case TARGET_NR_inotify_init: |
11317 | ret = get_errno(sys_inotify_init()); |
11318 | if (ret >= 0) { |
11319 | fd_trans_register(ret, &target_inotify_trans); |
11320 | } |
11321 | return ret; |
11322 | #endif |
11323 | #ifdef CONFIG_INOTIFY1 |
11324 | #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) |
11325 | case TARGET_NR_inotify_init1: |
11326 | ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1, |
11327 | fcntl_flags_tbl))); |
11328 | if (ret >= 0) { |
11329 | fd_trans_register(ret, &target_inotify_trans); |
11330 | } |
11331 | return ret; |
11332 | #endif |
11333 | #endif |
11334 | #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) |
11335 | case TARGET_NR_inotify_add_watch: |
11336 | p = lock_user_string(arg2); |
11337 | ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); |
11338 | unlock_user(p, arg2, 0); |
11339 | return ret; |
11340 | #endif |
11341 | #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) |
11342 | case TARGET_NR_inotify_rm_watch: |
11343 | return get_errno(sys_inotify_rm_watch(arg1, arg2)); |
11344 | #endif |
11345 | |
11346 | #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
11347 | case TARGET_NR_mq_open: |
11348 | { |
11349 | struct mq_attr posix_mq_attr; |
11350 | struct mq_attr *pposix_mq_attr; |
11351 | int host_flags; |
11352 | |
11353 | host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl); |
11354 | pposix_mq_attr = NULL; |
11355 | if (arg4) { |
11356 | if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) { |
11357 | return -TARGET_EFAULT; |
11358 | } |
11359 | pposix_mq_attr = &posix_mq_attr; |
11360 | } |
11361 | p = lock_user_string(arg1 - 1); |
11362 | if (!p) { |
11363 | return -TARGET_EFAULT; |
11364 | } |
11365 | ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr)); |
11366 | unlock_user (p, arg1, 0); |
11367 | } |
11368 | return ret; |
11369 | |
11370 | case TARGET_NR_mq_unlink: |
11371 | p = lock_user_string(arg1 - 1); |
11372 | if (!p) { |
11373 | return -TARGET_EFAULT; |
11374 | } |
11375 | ret = get_errno(mq_unlink(p)); |
11376 | unlock_user (p, arg1, 0); |
11377 | return ret; |
11378 | |
11379 | case TARGET_NR_mq_timedsend: |
11380 | { |
11381 | struct timespec ts; |
11382 | |
11383 | p = lock_user (VERIFY_READ, arg2, arg3, 1); |
11384 | if (arg5 != 0) { |
11385 | target_to_host_timespec(&ts, arg5); |
11386 | ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts)); |
11387 | host_to_target_timespec(arg5, &ts); |
11388 | } else { |
11389 | ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL)); |
11390 | } |
11391 | unlock_user (p, arg2, arg3); |
11392 | } |
11393 | return ret; |
11394 | |
11395 | case TARGET_NR_mq_timedreceive: |
11396 | { |
11397 | struct timespec ts; |
11398 | unsigned int prio; |
11399 | |
11400 | p = lock_user (VERIFY_READ, arg2, arg3, 1); |
11401 | if (arg5 != 0) { |
11402 | target_to_host_timespec(&ts, arg5); |
11403 | ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, |
11404 | &prio, &ts)); |
11405 | host_to_target_timespec(arg5, &ts); |
11406 | } else { |
11407 | ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, |
11408 | &prio, NULL)); |
11409 | } |
11410 | unlock_user (p, arg2, arg3); |
11411 | if (arg4 != 0) |
11412 | put_user_u32(prio, arg4); |
11413 | } |
11414 | return ret; |
11415 | |
11416 | /* Not implemented for now... */ |
11417 | /* case TARGET_NR_mq_notify: */ |
11418 | /* break; */ |
11419 | |
11420 | case TARGET_NR_mq_getsetattr: |
11421 | { |
11422 | struct mq_attr posix_mq_attr_in, posix_mq_attr_out; |
11423 | ret = 0; |
11424 | if (arg2 != 0) { |
11425 | copy_from_user_mq_attr(&posix_mq_attr_in, arg2); |
11426 | ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in, |
11427 | &posix_mq_attr_out)); |
11428 | } else if (arg3 != 0) { |
11429 | ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out)); |
11430 | } |
11431 | if (ret == 0 && arg3 != 0) { |
11432 | copy_to_user_mq_attr(arg3, &posix_mq_attr_out); |
11433 | } |
11434 | } |
11435 | return ret; |
11436 | #endif |
11437 | |
11438 | #ifdef CONFIG_SPLICE |
11439 | #ifdef TARGET_NR_tee |
11440 | case TARGET_NR_tee: |
11441 | { |
11442 | ret = get_errno(tee(arg1,arg2,arg3,arg4)); |
11443 | } |
11444 | return ret; |
11445 | #endif |
11446 | #ifdef TARGET_NR_splice |
11447 | case TARGET_NR_splice: |
11448 | { |
11449 | loff_t loff_in, loff_out; |
11450 | loff_t *ploff_in = NULL, *ploff_out = NULL; |
11451 | if (arg2) { |
11452 | if (get_user_u64(loff_in, arg2)) { |
11453 | return -TARGET_EFAULT; |
11454 | } |
11455 | ploff_in = &loff_in; |
11456 | } |
11457 | if (arg4) { |
11458 | if (get_user_u64(loff_out, arg4)) { |
11459 | return -TARGET_EFAULT; |
11460 | } |
11461 | ploff_out = &loff_out; |
11462 | } |
11463 | ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); |
11464 | if (arg2) { |
11465 | if (put_user_u64(loff_in, arg2)) { |
11466 | return -TARGET_EFAULT; |
11467 | } |
11468 | } |
11469 | if (arg4) { |
11470 | if (put_user_u64(loff_out, arg4)) { |
11471 | return -TARGET_EFAULT; |
11472 | } |
11473 | } |
11474 | } |
11475 | return ret; |
11476 | #endif |
11477 | #ifdef TARGET_NR_vmsplice |
11478 | case TARGET_NR_vmsplice: |
11479 | { |
11480 | struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
11481 | if (vec != NULL) { |
11482 | ret = get_errno(vmsplice(arg1, vec, arg3, arg4)); |
11483 | unlock_iovec(vec, arg2, arg3, 0); |
11484 | } else { |
11485 | ret = -host_to_target_errno(errno); |
11486 | } |
11487 | } |
11488 | return ret; |
11489 | #endif |
11490 | #endif /* CONFIG_SPLICE */ |
11491 | #ifdef CONFIG_EVENTFD |
11492 | #if defined(TARGET_NR_eventfd) |
11493 | case TARGET_NR_eventfd: |
11494 | ret = get_errno(eventfd(arg1, 0)); |
11495 | if (ret >= 0) { |
11496 | fd_trans_register(ret, &target_eventfd_trans); |
11497 | } |
11498 | return ret; |
11499 | #endif |
11500 | #if defined(TARGET_NR_eventfd2) |
11501 | case TARGET_NR_eventfd2: |
11502 | { |
11503 | int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)); |
11504 | if (arg2 & TARGET_O_NONBLOCK) { |
11505 | host_flags |= O_NONBLOCK; |
11506 | } |
11507 | if (arg2 & TARGET_O_CLOEXEC) { |
11508 | host_flags |= O_CLOEXEC; |
11509 | } |
11510 | ret = get_errno(eventfd(arg1, host_flags)); |
11511 | if (ret >= 0) { |
11512 | fd_trans_register(ret, &target_eventfd_trans); |
11513 | } |
11514 | return ret; |
11515 | } |
11516 | #endif |
11517 | #endif /* CONFIG_EVENTFD */ |
11518 | #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) |
11519 | case TARGET_NR_fallocate: |
11520 | #if TARGET_ABI_BITS == 32 |
11521 | ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4), |
11522 | target_offset64(arg5, arg6))); |
11523 | #else |
11524 | ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); |
11525 | #endif |
11526 | return ret; |
11527 | #endif |
11528 | #if defined(CONFIG_SYNC_FILE_RANGE) |
11529 | #if defined(TARGET_NR_sync_file_range) |
11530 | case TARGET_NR_sync_file_range: |
11531 | #if TARGET_ABI_BITS == 32 |
11532 | #if defined(TARGET_MIPS) |
11533 | ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), |
11534 | target_offset64(arg5, arg6), arg7)); |
11535 | #else |
11536 | ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3), |
11537 | target_offset64(arg4, arg5), arg6)); |
11538 | #endif /* !TARGET_MIPS */ |
11539 | #else |
11540 | ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4)); |
11541 | #endif |
11542 | return ret; |
11543 | #endif |
11544 | #if defined(TARGET_NR_sync_file_range2) |
11545 | case TARGET_NR_sync_file_range2: |
11546 | /* This is like sync_file_range but the arguments are reordered */ |
11547 | #if TARGET_ABI_BITS == 32 |
11548 | ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), |
11549 | target_offset64(arg5, arg6), arg2)); |
11550 | #else |
11551 | ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2)); |
11552 | #endif |
11553 | return ret; |
11554 | #endif |
11555 | #endif |
11556 | #if defined(TARGET_NR_signalfd4) |
11557 | case TARGET_NR_signalfd4: |
11558 | return do_signalfd4(arg1, arg2, arg4); |
11559 | #endif |
11560 | #if defined(TARGET_NR_signalfd) |
11561 | case TARGET_NR_signalfd: |
11562 | return do_signalfd4(arg1, arg2, 0); |
11563 | #endif |
11564 | #if defined(CONFIG_EPOLL) |
11565 | #if defined(TARGET_NR_epoll_create) |
11566 | case TARGET_NR_epoll_create: |
11567 | return get_errno(epoll_create(arg1)); |
11568 | #endif |
11569 | #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1) |
11570 | case TARGET_NR_epoll_create1: |
11571 | return get_errno(epoll_create1(arg1)); |
11572 | #endif |
11573 | #if defined(TARGET_NR_epoll_ctl) |
11574 | case TARGET_NR_epoll_ctl: |
11575 | { |
11576 | struct epoll_event ep; |
11577 | struct epoll_event *epp = 0; |
11578 | if (arg4) { |
11579 | struct target_epoll_event *target_ep; |
11580 | if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) { |
11581 | return -TARGET_EFAULT; |
11582 | } |
11583 | ep.events = tswap32(target_ep->events); |
11584 | /* The epoll_data_t union is just opaque data to the kernel, |
11585 | * so we transfer all 64 bits across and need not worry what |
11586 | * actual data type it is. |
11587 | */ |
11588 | ep.data.u64 = tswap64(target_ep->data.u64); |
11589 | unlock_user_struct(target_ep, arg4, 0); |
11590 | epp = &ep; |
11591 | } |
11592 | return get_errno(epoll_ctl(arg1, arg2, arg3, epp)); |
11593 | } |
11594 | #endif |
11595 | |
11596 | #if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait) |
11597 | #if defined(TARGET_NR_epoll_wait) |
11598 | case TARGET_NR_epoll_wait: |
11599 | #endif |
11600 | #if defined(TARGET_NR_epoll_pwait) |
11601 | case TARGET_NR_epoll_pwait: |
11602 | #endif |
11603 | { |
11604 | struct target_epoll_event *target_ep; |
11605 | struct epoll_event *ep; |
11606 | int epfd = arg1; |
11607 | int maxevents = arg3; |
11608 | int timeout = arg4; |
11609 | |
11610 | if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) { |
11611 | return -TARGET_EINVAL; |
11612 | } |
11613 | |
11614 | target_ep = lock_user(VERIFY_WRITE, arg2, |
11615 | maxevents * sizeof(struct target_epoll_event), 1); |
11616 | if (!target_ep) { |
11617 | return -TARGET_EFAULT; |
11618 | } |
11619 | |
11620 | ep = g_try_new(struct epoll_event, maxevents); |
11621 | if (!ep) { |
11622 | unlock_user(target_ep, arg2, 0); |
11623 | return -TARGET_ENOMEM; |
11624 | } |
11625 | |
11626 | switch (num) { |
11627 | #if defined(TARGET_NR_epoll_pwait) |
11628 | case TARGET_NR_epoll_pwait: |
11629 | { |
11630 | target_sigset_t *target_set; |
11631 | sigset_t _set, *set = &_set; |
11632 | |
11633 | if (arg5) { |
11634 | if (arg6 != sizeof(target_sigset_t)) { |
11635 | ret = -TARGET_EINVAL; |
11636 | break; |
11637 | } |
11638 | |
11639 | target_set = lock_user(VERIFY_READ, arg5, |
11640 | sizeof(target_sigset_t), 1); |
11641 | if (!target_set) { |
11642 | ret = -TARGET_EFAULT; |
11643 | break; |
11644 | } |
11645 | target_to_host_sigset(set, target_set); |
11646 | unlock_user(target_set, arg5, 0); |
11647 | } else { |
11648 | set = NULL; |
11649 | } |
11650 | |
11651 | ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, |
11652 | set, SIGSET_T_SIZE)); |
11653 | break; |
11654 | } |
11655 | #endif |
11656 | #if defined(TARGET_NR_epoll_wait) |
11657 | case TARGET_NR_epoll_wait: |
11658 | ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, |
11659 | NULL, 0)); |
11660 | break; |
11661 | #endif |
11662 | default: |
11663 | ret = -TARGET_ENOSYS; |
11664 | } |
11665 | if (!is_error(ret)) { |
11666 | int i; |
11667 | for (i = 0; i < ret; i++) { |
11668 | target_ep[i].events = tswap32(ep[i].events); |
11669 | target_ep[i].data.u64 = tswap64(ep[i].data.u64); |
11670 | } |
11671 | unlock_user(target_ep, arg2, |
11672 | ret * sizeof(struct target_epoll_event)); |
11673 | } else { |
11674 | unlock_user(target_ep, arg2, 0); |
11675 | } |
11676 | g_free(ep); |
11677 | return ret; |
11678 | } |
11679 | #endif |
11680 | #endif |
11681 | #ifdef TARGET_NR_prlimit64 |
11682 | case TARGET_NR_prlimit64: |
11683 | { |
11684 | /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */ |
11685 | struct target_rlimit64 *target_rnew, *target_rold; |
11686 | struct host_rlimit64 rnew, rold, *rnewp = 0; |
11687 | int resource = target_to_host_resource(arg2); |
11688 | if (arg3) { |
11689 | if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) { |
11690 | return -TARGET_EFAULT; |
11691 | } |
11692 | rnew.rlim_cur = tswap64(target_rnew->rlim_cur); |
11693 | rnew.rlim_max = tswap64(target_rnew->rlim_max); |
11694 | unlock_user_struct(target_rnew, arg3, 0); |
11695 | rnewp = &rnew; |
11696 | } |
11697 | |
11698 | ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0)); |
11699 | if (!is_error(ret) && arg4) { |
11700 | if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) { |
11701 | return -TARGET_EFAULT; |
11702 | } |
11703 | target_rold->rlim_cur = tswap64(rold.rlim_cur); |
11704 | target_rold->rlim_max = tswap64(rold.rlim_max); |
11705 | unlock_user_struct(target_rold, arg4, 1); |
11706 | } |
11707 | return ret; |
11708 | } |
11709 | #endif |
11710 | #ifdef TARGET_NR_gethostname |
11711 | case TARGET_NR_gethostname: |
11712 | { |
11713 | char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0); |
11714 | if (name) { |
11715 | ret = get_errno(gethostname(name, arg2)); |
11716 | unlock_user(name, arg1, arg2); |
11717 | } else { |
11718 | ret = -TARGET_EFAULT; |
11719 | } |
11720 | return ret; |
11721 | } |
11722 | #endif |
11723 | #ifdef TARGET_NR_atomic_cmpxchg_32 |
11724 | case TARGET_NR_atomic_cmpxchg_32: |
11725 | { |
11726 | /* should use start_exclusive from main.c */ |
11727 | abi_ulong mem_value; |
11728 | if (get_user_u32(mem_value, arg6)) { |
11729 | target_siginfo_t info; |
11730 | info.si_signo = SIGSEGV; |
11731 | info.si_errno = 0; |
11732 | info.si_code = TARGET_SEGV_MAPERR; |
11733 | info._sifields._sigfault._addr = arg6; |
11734 | queue_signal((CPUArchState *)cpu_env, info.si_signo, |
11735 | QEMU_SI_FAULT, &info); |
11736 | ret = 0xdeadbeef; |
11737 | |
11738 | } |
11739 | if (mem_value == arg2) |
11740 | put_user_u32(arg1, arg6); |
11741 | return mem_value; |
11742 | } |
11743 | #endif |
11744 | #ifdef TARGET_NR_atomic_barrier |
11745 | case TARGET_NR_atomic_barrier: |
11746 | /* Like the kernel implementation and the |
11747 | qemu arm barrier, no-op this? */ |
11748 | return 0; |
11749 | #endif |
11750 | |
11751 | #ifdef TARGET_NR_timer_create |
11752 | case TARGET_NR_timer_create: |
11753 | { |
11754 | /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */ |
11755 | |
11756 | struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL; |
11757 | |
11758 | int clkid = arg1; |
11759 | int timer_index = next_free_host_timer(); |
11760 | |
11761 | if (timer_index < 0) { |
11762 | ret = -TARGET_EAGAIN; |
11763 | } else { |
11764 | timer_t *phtimer = g_posix_timers + timer_index; |
11765 | |
11766 | if (arg2) { |
11767 | phost_sevp = &host_sevp; |
11768 | ret = target_to_host_sigevent(phost_sevp, arg2); |
11769 | if (ret != 0) { |
11770 | return ret; |
11771 | } |
11772 | } |
11773 | |
11774 | ret = get_errno(timer_create(clkid, phost_sevp, phtimer)); |
11775 | if (ret) { |
11776 | phtimer = NULL; |
11777 | } else { |
11778 | if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) { |
11779 | return -TARGET_EFAULT; |
11780 | } |
11781 | } |
11782 | } |
11783 | return ret; |
11784 | } |
11785 | #endif |
11786 | |
11787 | #ifdef TARGET_NR_timer_settime |
11788 | case TARGET_NR_timer_settime: |
11789 | { |
11790 | /* args: timer_t timerid, int flags, const struct itimerspec *new_value, |
11791 | * struct itimerspec * old_value */ |
11792 | target_timer_t timerid = get_timer_id(arg1); |
11793 | |
11794 | if (timerid < 0) { |
11795 | ret = timerid; |
11796 | } else if (arg3 == 0) { |
11797 | ret = -TARGET_EINVAL; |
11798 | } else { |
11799 | timer_t htimer = g_posix_timers[timerid]; |
11800 | struct itimerspec hspec_new = {{0},}, hspec_old = {{0},}; |
11801 | |
11802 | if (target_to_host_itimerspec(&hspec_new, arg3)) { |
11803 | return -TARGET_EFAULT; |
11804 | } |
11805 | ret = get_errno( |
11806 | timer_settime(htimer, arg2, &hspec_new, &hspec_old)); |
11807 | if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) { |
11808 | return -TARGET_EFAULT; |
11809 | } |
11810 | } |
11811 | return ret; |
11812 | } |
11813 | #endif |
11814 | |
11815 | #ifdef TARGET_NR_timer_gettime |
11816 | case TARGET_NR_timer_gettime: |
11817 | { |
11818 | /* args: timer_t timerid, struct itimerspec *curr_value */ |
11819 | target_timer_t timerid = get_timer_id(arg1); |
11820 | |
11821 | if (timerid < 0) { |
11822 | ret = timerid; |
11823 | } else if (!arg2) { |
11824 | ret = -TARGET_EFAULT; |
11825 | } else { |
11826 | timer_t htimer = g_posix_timers[timerid]; |
11827 | struct itimerspec hspec; |
11828 | ret = get_errno(timer_gettime(htimer, &hspec)); |
11829 | |
11830 | if (host_to_target_itimerspec(arg2, &hspec)) { |
11831 | ret = -TARGET_EFAULT; |
11832 | } |
11833 | } |
11834 | return ret; |
11835 | } |
11836 | #endif |
11837 | |
11838 | #ifdef TARGET_NR_timer_getoverrun |
11839 | case TARGET_NR_timer_getoverrun: |
11840 | { |
11841 | /* args: timer_t timerid */ |
11842 | target_timer_t timerid = get_timer_id(arg1); |
11843 | |
11844 | if (timerid < 0) { |
11845 | ret = timerid; |
11846 | } else { |
11847 | timer_t htimer = g_posix_timers[timerid]; |
11848 | ret = get_errno(timer_getoverrun(htimer)); |
11849 | } |
11850 | fd_trans_unregister(ret); |
11851 | return ret; |
11852 | } |
11853 | #endif |
11854 | |
11855 | #ifdef TARGET_NR_timer_delete |
11856 | case TARGET_NR_timer_delete: |
11857 | { |
11858 | /* args: timer_t timerid */ |
11859 | target_timer_t timerid = get_timer_id(arg1); |
11860 | |
11861 | if (timerid < 0) { |
11862 | ret = timerid; |
11863 | } else { |
11864 | timer_t htimer = g_posix_timers[timerid]; |
11865 | ret = get_errno(timer_delete(htimer)); |
11866 | g_posix_timers[timerid] = 0; |
11867 | } |
11868 | return ret; |
11869 | } |
11870 | #endif |
11871 | |
11872 | #if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD) |
11873 | case TARGET_NR_timerfd_create: |
11874 | return get_errno(timerfd_create(arg1, |
11875 | target_to_host_bitmask(arg2, fcntl_flags_tbl))); |
11876 | #endif |
11877 | |
11878 | #if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD) |
11879 | case TARGET_NR_timerfd_gettime: |
11880 | { |
11881 | struct itimerspec its_curr; |
11882 | |
11883 | ret = get_errno(timerfd_gettime(arg1, &its_curr)); |
11884 | |
11885 | if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) { |
11886 | return -TARGET_EFAULT; |
11887 | } |
11888 | } |
11889 | return ret; |
11890 | #endif |
11891 | |
11892 | #if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD) |
11893 | case TARGET_NR_timerfd_settime: |
11894 | { |
11895 | struct itimerspec its_new, its_old, *p_new; |
11896 | |
11897 | if (arg3) { |
11898 | if (target_to_host_itimerspec(&its_new, arg3)) { |
11899 | return -TARGET_EFAULT; |
11900 | } |
11901 | p_new = &its_new; |
11902 | } else { |
11903 | p_new = NULL; |
11904 | } |
11905 | |
11906 | ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old)); |
11907 | |
11908 | if (arg4 && host_to_target_itimerspec(arg4, &its_old)) { |
11909 | return -TARGET_EFAULT; |
11910 | } |
11911 | } |
11912 | return ret; |
11913 | #endif |
11914 | |
11915 | #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get) |
11916 | case TARGET_NR_ioprio_get: |
11917 | return get_errno(ioprio_get(arg1, arg2)); |
11918 | #endif |
11919 | |
11920 | #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) |
11921 | case TARGET_NR_ioprio_set: |
11922 | return get_errno(ioprio_set(arg1, arg2, arg3)); |
11923 | #endif |
11924 | |
11925 | #if defined(TARGET_NR_setns) && defined(CONFIG_SETNS) |
11926 | case TARGET_NR_setns: |
11927 | return get_errno(setns(arg1, arg2)); |
11928 | #endif |
11929 | #if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS) |
11930 | case TARGET_NR_unshare: |
11931 | return get_errno(unshare(arg1)); |
11932 | #endif |
11933 | #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp) |
11934 | case TARGET_NR_kcmp: |
11935 | return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5)); |
11936 | #endif |
11937 | #ifdef TARGET_NR_swapcontext |
11938 | case TARGET_NR_swapcontext: |
11939 | /* PowerPC specific. */ |
11940 | return do_swapcontext(cpu_env, arg1, arg2, arg3); |
11941 | #endif |
11942 | |
11943 | default: |
11944 | qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n" , num); |
11945 | return -TARGET_ENOSYS; |
11946 | } |
11947 | return ret; |
11948 | } |
11949 | |
11950 | abi_long do_syscall(void *cpu_env, int num, abi_long arg1, |
11951 | abi_long arg2, abi_long arg3, abi_long arg4, |
11952 | abi_long arg5, abi_long arg6, abi_long arg7, |
11953 | abi_long arg8) |
11954 | { |
11955 | CPUState *cpu = env_cpu(cpu_env); |
11956 | abi_long ret; |
11957 | |
11958 | #ifdef DEBUG_ERESTARTSYS |
11959 | /* Debug-only code for exercising the syscall-restart code paths |
11960 | * in the per-architecture cpu main loops: restart every syscall |
11961 | * the guest makes once before letting it through. |
11962 | */ |
11963 | { |
11964 | static bool flag; |
11965 | flag = !flag; |
11966 | if (flag) { |
11967 | return -TARGET_ERESTARTSYS; |
11968 | } |
11969 | } |
11970 | #endif |
11971 | |
11972 | trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, |
11973 | arg5, arg6, arg7, arg8); |
11974 | |
11975 | if (unlikely(do_strace)) { |
11976 | print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
11977 | ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4, |
11978 | arg5, arg6, arg7, arg8); |
11979 | print_syscall_ret(num, ret); |
11980 | } else { |
11981 | ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4, |
11982 | arg5, arg6, arg7, arg8); |
11983 | } |
11984 | |
11985 | trace_guest_user_syscall_ret(cpu, num, ret); |
11986 | return ret; |
11987 | } |
11988 | |