1 | /* |
2 | * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | /* |
11 | * Why BIO_s_log? |
12 | * |
13 | * BIO_s_log is useful for system daemons (or services under NT). It is |
14 | * one-way BIO, it sends all stuff to syslogd (on system that commonly use |
15 | * that), or event log (on NT), or OPCOM (on OpenVMS). |
16 | * |
17 | */ |
18 | |
19 | #include <stdio.h> |
20 | #include <errno.h> |
21 | |
22 | #include "bio_local.h" |
23 | #include "internal/cryptlib.h" |
24 | |
25 | #if defined(OPENSSL_SYS_WINCE) |
26 | #elif defined(OPENSSL_SYS_WIN32) |
27 | #elif defined(OPENSSL_SYS_VMS) |
28 | # include <opcdef.h> |
29 | # include <descrip.h> |
30 | # include <lib$routines.h> |
31 | # include <starlet.h> |
32 | /* Some compiler options may mask the declaration of "_malloc32". */ |
33 | # if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE |
34 | # if __INITIAL_POINTER_SIZE == 64 |
35 | # pragma pointer_size save |
36 | # pragma pointer_size 32 |
37 | void *_malloc32(__size_t); |
38 | # pragma pointer_size restore |
39 | # endif /* __INITIAL_POINTER_SIZE == 64 */ |
40 | # endif /* __INITIAL_POINTER_SIZE && defined |
41 | * _ANSI_C_SOURCE */ |
42 | #elif defined(__DJGPP__) && defined(OPENSSL_NO_SOCK) |
43 | # define NO_SYSLOG |
44 | #elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG) |
45 | # include <syslog.h> |
46 | #endif |
47 | |
48 | #include <openssl/buffer.h> |
49 | #include <openssl/err.h> |
50 | |
51 | #ifndef NO_SYSLOG |
52 | |
53 | # if defined(OPENSSL_SYS_WIN32) |
54 | # define LOG_EMERG 0 |
55 | # define LOG_ALERT 1 |
56 | # define LOG_CRIT 2 |
57 | # define LOG_ERR 3 |
58 | # define LOG_WARNING 4 |
59 | # define LOG_NOTICE 5 |
60 | # define LOG_INFO 6 |
61 | # define LOG_DEBUG 7 |
62 | |
63 | # define LOG_DAEMON (3<<3) |
64 | # elif defined(OPENSSL_SYS_VMS) |
65 | /* On VMS, we don't really care about these, but we need them to compile */ |
66 | # define LOG_EMERG 0 |
67 | # define LOG_ALERT 1 |
68 | # define LOG_CRIT 2 |
69 | # define LOG_ERR 3 |
70 | # define LOG_WARNING 4 |
71 | # define LOG_NOTICE 5 |
72 | # define LOG_INFO 6 |
73 | # define LOG_DEBUG 7 |
74 | |
75 | # define LOG_DAEMON OPC$M_NM_NTWORK |
76 | # endif |
77 | |
78 | static int slg_write(BIO *h, const char *buf, int num); |
79 | static int slg_puts(BIO *h, const char *str); |
80 | static long slg_ctrl(BIO *h, int cmd, long arg1, void *arg2); |
81 | static int slg_new(BIO *h); |
82 | static int slg_free(BIO *data); |
83 | static void xopenlog(BIO *bp, char *name, int level); |
84 | static void xsyslog(BIO *bp, int priority, const char *string); |
85 | static void xcloselog(BIO *bp); |
86 | |
87 | static const BIO_METHOD methods_slg = { |
88 | BIO_TYPE_MEM, |
89 | "syslog" , |
90 | /* TODO: Convert to new style write function */ |
91 | bwrite_conv, |
92 | slg_write, |
93 | NULL, /* slg_write_old, */ |
94 | NULL, /* slg_read, */ |
95 | slg_puts, |
96 | NULL, |
97 | slg_ctrl, |
98 | slg_new, |
99 | slg_free, |
100 | NULL, /* slg_callback_ctrl */ |
101 | }; |
102 | |
103 | const BIO_METHOD *BIO_s_log(void) |
104 | { |
105 | return &methods_slg; |
106 | } |
107 | |
108 | static int slg_new(BIO *bi) |
109 | { |
110 | bi->init = 1; |
111 | bi->num = 0; |
112 | bi->ptr = NULL; |
113 | xopenlog(bi, "application" , LOG_DAEMON); |
114 | return 1; |
115 | } |
116 | |
117 | static int slg_free(BIO *a) |
118 | { |
119 | if (a == NULL) |
120 | return 0; |
121 | xcloselog(a); |
122 | return 1; |
123 | } |
124 | |
125 | static int slg_write(BIO *b, const char *in, int inl) |
126 | { |
127 | int ret = inl; |
128 | char *buf; |
129 | char *pp; |
130 | int priority, i; |
131 | static const struct { |
132 | int strl; |
133 | char str[10]; |
134 | int log_level; |
135 | } mapping[] = { |
136 | { |
137 | 6, "PANIC " , LOG_EMERG |
138 | }, |
139 | { |
140 | 6, "EMERG " , LOG_EMERG |
141 | }, |
142 | { |
143 | 4, "EMR " , LOG_EMERG |
144 | }, |
145 | { |
146 | 6, "ALERT " , LOG_ALERT |
147 | }, |
148 | { |
149 | 4, "ALR " , LOG_ALERT |
150 | }, |
151 | { |
152 | 5, "CRIT " , LOG_CRIT |
153 | }, |
154 | { |
155 | 4, "CRI " , LOG_CRIT |
156 | }, |
157 | { |
158 | 6, "ERROR " , LOG_ERR |
159 | }, |
160 | { |
161 | 4, "ERR " , LOG_ERR |
162 | }, |
163 | { |
164 | 8, "WARNING " , LOG_WARNING |
165 | }, |
166 | { |
167 | 5, "WARN " , LOG_WARNING |
168 | }, |
169 | { |
170 | 4, "WAR " , LOG_WARNING |
171 | }, |
172 | { |
173 | 7, "NOTICE " , LOG_NOTICE |
174 | }, |
175 | { |
176 | 5, "NOTE " , LOG_NOTICE |
177 | }, |
178 | { |
179 | 4, "NOT " , LOG_NOTICE |
180 | }, |
181 | { |
182 | 5, "INFO " , LOG_INFO |
183 | }, |
184 | { |
185 | 4, "INF " , LOG_INFO |
186 | }, |
187 | { |
188 | 6, "DEBUG " , LOG_DEBUG |
189 | }, |
190 | { |
191 | 4, "DBG " , LOG_DEBUG |
192 | }, |
193 | { |
194 | 0, "" , LOG_ERR |
195 | } |
196 | /* The default */ |
197 | }; |
198 | |
199 | if ((buf = OPENSSL_malloc(inl + 1)) == NULL) { |
200 | BIOerr(BIO_F_SLG_WRITE, ERR_R_MALLOC_FAILURE); |
201 | return 0; |
202 | } |
203 | memcpy(buf, in, inl); |
204 | buf[inl] = '\0'; |
205 | |
206 | i = 0; |
207 | while (strncmp(buf, mapping[i].str, mapping[i].strl) != 0) |
208 | i++; |
209 | priority = mapping[i].log_level; |
210 | pp = buf + mapping[i].strl; |
211 | |
212 | xsyslog(b, priority, pp); |
213 | |
214 | OPENSSL_free(buf); |
215 | return ret; |
216 | } |
217 | |
218 | static long slg_ctrl(BIO *b, int cmd, long num, void *ptr) |
219 | { |
220 | switch (cmd) { |
221 | case BIO_CTRL_SET: |
222 | xcloselog(b); |
223 | xopenlog(b, ptr, num); |
224 | break; |
225 | default: |
226 | break; |
227 | } |
228 | return 0; |
229 | } |
230 | |
231 | static int slg_puts(BIO *bp, const char *str) |
232 | { |
233 | int n, ret; |
234 | |
235 | n = strlen(str); |
236 | ret = slg_write(bp, str, n); |
237 | return ret; |
238 | } |
239 | |
240 | # if defined(OPENSSL_SYS_WIN32) |
241 | |
242 | static void xopenlog(BIO *bp, char *name, int level) |
243 | { |
244 | if (check_winnt()) |
245 | bp->ptr = RegisterEventSourceA(NULL, name); |
246 | else |
247 | bp->ptr = NULL; |
248 | } |
249 | |
250 | static void xsyslog(BIO *bp, int priority, const char *string) |
251 | { |
252 | LPCSTR lpszStrings[2]; |
253 | WORD evtype = EVENTLOG_ERROR_TYPE; |
254 | char pidbuf[DECIMAL_SIZE(DWORD) + 4]; |
255 | |
256 | if (bp->ptr == NULL) |
257 | return; |
258 | |
259 | switch (priority) { |
260 | case LOG_EMERG: |
261 | case LOG_ALERT: |
262 | case LOG_CRIT: |
263 | case LOG_ERR: |
264 | evtype = EVENTLOG_ERROR_TYPE; |
265 | break; |
266 | case LOG_WARNING: |
267 | evtype = EVENTLOG_WARNING_TYPE; |
268 | break; |
269 | case LOG_NOTICE: |
270 | case LOG_INFO: |
271 | case LOG_DEBUG: |
272 | evtype = EVENTLOG_INFORMATION_TYPE; |
273 | break; |
274 | default: |
275 | /* |
276 | * Should never happen, but set it |
277 | * as error anyway. |
278 | */ |
279 | evtype = EVENTLOG_ERROR_TYPE; |
280 | break; |
281 | } |
282 | |
283 | sprintf(pidbuf, "[%lu] " , GetCurrentProcessId()); |
284 | lpszStrings[0] = pidbuf; |
285 | lpszStrings[1] = string; |
286 | |
287 | ReportEventA(bp->ptr, evtype, 0, 1024, NULL, 2, 0, lpszStrings, NULL); |
288 | } |
289 | |
290 | static void xcloselog(BIO *bp) |
291 | { |
292 | if (bp->ptr) |
293 | DeregisterEventSource((HANDLE) (bp->ptr)); |
294 | bp->ptr = NULL; |
295 | } |
296 | |
297 | # elif defined(OPENSSL_SYS_VMS) |
298 | |
299 | static int VMS_OPC_target = LOG_DAEMON; |
300 | |
301 | static void xopenlog(BIO *bp, char *name, int level) |
302 | { |
303 | VMS_OPC_target = level; |
304 | } |
305 | |
306 | static void xsyslog(BIO *bp, int priority, const char *string) |
307 | { |
308 | struct dsc$descriptor_s opc_dsc; |
309 | |
310 | /* Arrange 32-bit pointer to opcdef buffer and malloc(), if needed. */ |
311 | # if __INITIAL_POINTER_SIZE == 64 |
312 | # pragma pointer_size save |
313 | # pragma pointer_size 32 |
314 | # define OPCDEF_TYPE __char_ptr32 |
315 | # define OPCDEF_MALLOC _malloc32 |
316 | # else /* __INITIAL_POINTER_SIZE == 64 */ |
317 | # define OPCDEF_TYPE char * |
318 | # define OPCDEF_MALLOC OPENSSL_malloc |
319 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ |
320 | |
321 | struct opcdef *opcdef_p; |
322 | |
323 | # if __INITIAL_POINTER_SIZE == 64 |
324 | # pragma pointer_size restore |
325 | # endif /* __INITIAL_POINTER_SIZE == 64 */ |
326 | |
327 | char buf[10240]; |
328 | unsigned int len; |
329 | struct dsc$descriptor_s buf_dsc; |
330 | $DESCRIPTOR(fao_cmd, "!AZ: !AZ" ); |
331 | char *priority_tag; |
332 | |
333 | switch (priority) { |
334 | case LOG_EMERG: |
335 | priority_tag = "Emergency" ; |
336 | break; |
337 | case LOG_ALERT: |
338 | priority_tag = "Alert" ; |
339 | break; |
340 | case LOG_CRIT: |
341 | priority_tag = "Critical" ; |
342 | break; |
343 | case LOG_ERR: |
344 | priority_tag = "Error" ; |
345 | break; |
346 | case LOG_WARNING: |
347 | priority_tag = "Warning" ; |
348 | break; |
349 | case LOG_NOTICE: |
350 | priority_tag = "Notice" ; |
351 | break; |
352 | case LOG_INFO: |
353 | priority_tag = "Info" ; |
354 | break; |
355 | case LOG_DEBUG: |
356 | priority_tag = "DEBUG" ; |
357 | break; |
358 | } |
359 | |
360 | buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T; |
361 | buf_dsc.dsc$b_class = DSC$K_CLASS_S; |
362 | buf_dsc.dsc$a_pointer = buf; |
363 | buf_dsc.dsc$w_length = sizeof(buf) - 1; |
364 | |
365 | lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string); |
366 | |
367 | /* We know there's an 8-byte header. That's documented. */ |
368 | opcdef_p = OPCDEF_MALLOC(8 + len); |
369 | opcdef_p->opc$b_ms_type = OPC$_RQ_RQST; |
370 | memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3); |
371 | opcdef_p->opc$l_ms_rqstid = 0; |
372 | memcpy(&opcdef_p->opc$l_ms_text, buf, len); |
373 | |
374 | opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T; |
375 | opc_dsc.dsc$b_class = DSC$K_CLASS_S; |
376 | opc_dsc.dsc$a_pointer = (OPCDEF_TYPE) opcdef_p; |
377 | opc_dsc.dsc$w_length = len + 8; |
378 | |
379 | sys$sndopr(opc_dsc, 0); |
380 | |
381 | OPENSSL_free(opcdef_p); |
382 | } |
383 | |
384 | static void xcloselog(BIO *bp) |
385 | { |
386 | } |
387 | |
388 | # else /* Unix/Watt32 */ |
389 | |
390 | static void xopenlog(BIO *bp, char *name, int level) |
391 | { |
392 | # ifdef WATT32 /* djgpp/DOS */ |
393 | openlog(name, LOG_PID | LOG_CONS | LOG_NDELAY, level); |
394 | # else |
395 | openlog(name, LOG_PID | LOG_CONS, level); |
396 | # endif |
397 | } |
398 | |
399 | static void xsyslog(BIO *bp, int priority, const char *string) |
400 | { |
401 | syslog(priority, "%s" , string); |
402 | } |
403 | |
404 | static void xcloselog(BIO *bp) |
405 | { |
406 | closelog(); |
407 | } |
408 | |
409 | # endif /* Unix */ |
410 | |
411 | #else /* NO_SYSLOG */ |
412 | const BIO_METHOD *BIO_s_log(void) |
413 | { |
414 | return NULL; |
415 | } |
416 | #endif /* NO_SYSLOG */ |
417 | |