1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#ifdef USE_QUICHE
26#include <quiche.h>
27#include <openssl/err.h>
28#include "urldata.h"
29#include "sendf.h"
30#include "strdup.h"
31#include "rand.h"
32#include "quic.h"
33#include "strcase.h"
34#include "multiif.h"
35#include "connect.h"
36#include "strerror.h"
37
38/* The last 3 #include files should be in this order */
39#include "curl_printf.h"
40#include "curl_memory.h"
41#include "memdebug.h"
42
43#define DEBUG_HTTP3
44/* #define DEBUG_QUICHE */
45#ifdef DEBUG_HTTP3
46#define H3BUGF(x) x
47#else
48#define H3BUGF(x) do { } while(0)
49#endif
50
51#define QUIC_MAX_STREAMS (256*1024)
52#define QUIC_MAX_DATA (1*1024*1024)
53#define QUIC_IDLE_TIMEOUT (60 * 1000) /* milliseconds */
54
55static CURLcode process_ingress(struct connectdata *conn,
56 curl_socket_t sockfd,
57 struct quicsocket *qs);
58
59static CURLcode flush_egress(struct connectdata *conn, curl_socket_t sockfd,
60 struct quicsocket *qs);
61
62static CURLcode http_request(struct connectdata *conn, const void *mem,
63 size_t len);
64static Curl_recv h3_stream_recv;
65static Curl_send h3_stream_send;
66
67
68static int quiche_getsock(struct connectdata *conn, curl_socket_t *socks)
69{
70 struct SingleRequest *k = &conn->data->req;
71 int bitmap = GETSOCK_BLANK;
72
73 socks[0] = conn->sock[FIRSTSOCKET];
74
75 /* in a HTTP/2 connection we can basically always get a frame so we should
76 always be ready for one */
77 bitmap |= GETSOCK_READSOCK(FIRSTSOCKET);
78
79 /* we're still uploading or the HTTP/2 layer wants to send data */
80 if((k->keepon & (KEEP_SEND|KEEP_SEND_PAUSE)) == KEEP_SEND)
81 bitmap |= GETSOCK_WRITESOCK(FIRSTSOCKET);
82
83 return bitmap;
84}
85
86static int quiche_perform_getsock(const struct connectdata *conn,
87 curl_socket_t *socks)
88{
89 return quiche_getsock((struct connectdata *)conn, socks);
90}
91
92static CURLcode quiche_disconnect(struct connectdata *conn,
93 bool dead_connection)
94{
95 struct quicsocket *qs = conn->quic;
96 (void)dead_connection;
97 quiche_h3_config_free(qs->h3config);
98 quiche_h3_conn_free(qs->h3c);
99 quiche_config_free(qs->cfg);
100 quiche_conn_free(qs->conn);
101 return CURLE_OK;
102}
103
104static unsigned int quiche_conncheck(struct connectdata *conn,
105 unsigned int checks_to_perform)
106{
107 (void)conn;
108 (void)checks_to_perform;
109 return CONNRESULT_NONE;
110}
111
112static CURLcode quiche_do(struct connectdata *conn, bool *done)
113{
114 struct HTTP *stream = conn->data->req.protop;
115 stream->h3req = FALSE; /* not sent */
116 return Curl_http(conn, done);
117}
118
119static const struct Curl_handler Curl_handler_http3 = {
120 "HTTPS", /* scheme */
121 ZERO_NULL, /* setup_connection */
122 quiche_do, /* do_it */
123 Curl_http_done, /* done */
124 ZERO_NULL, /* do_more */
125 ZERO_NULL, /* connect_it */
126 ZERO_NULL, /* connecting */
127 ZERO_NULL, /* doing */
128 quiche_getsock, /* proto_getsock */
129 quiche_getsock, /* doing_getsock */
130 ZERO_NULL, /* domore_getsock */
131 quiche_perform_getsock, /* perform_getsock */
132 quiche_disconnect, /* disconnect */
133 ZERO_NULL, /* readwrite */
134 quiche_conncheck, /* connection_check */
135 PORT_HTTP, /* defport */
136 CURLPROTO_HTTPS, /* protocol */
137 PROTOPT_SSL | PROTOPT_STREAM /* flags */
138};
139
140#ifdef DEBUG_QUICHE
141static void quiche_debug_log(const char *line, void *argp)
142{
143 (void)argp;
144 fprintf(stderr, "%s\n", line);
145}
146#endif
147
148CURLcode Curl_quic_connect(struct connectdata *conn, curl_socket_t sockfd,
149 int sockindex,
150 const struct sockaddr *addr, socklen_t addrlen)
151{
152 CURLcode result;
153 struct quicsocket *qs = &conn->hequic[sockindex];
154 struct Curl_easy *data = conn->data;
155
156#ifdef DEBUG_QUICHE
157 /* initialize debug log callback only once */
158 static int debug_log_init = 0;
159 if(!debug_log_init) {
160 quiche_enable_debug_logging(quiche_debug_log, NULL);
161 debug_log_init = 1;
162 }
163#endif
164
165 (void)addr;
166 (void)addrlen;
167
168 qs->cfg = quiche_config_new(QUICHE_PROTOCOL_VERSION);
169 if(!qs->cfg) {
170 failf(data, "can't create quiche config");
171 return CURLE_FAILED_INIT;
172 }
173
174 quiche_config_set_idle_timeout(qs->cfg, QUIC_IDLE_TIMEOUT);
175 quiche_config_set_initial_max_data(qs->cfg, QUIC_MAX_DATA);
176 quiche_config_set_initial_max_stream_data_bidi_local(qs->cfg, QUIC_MAX_DATA);
177 quiche_config_set_initial_max_stream_data_bidi_remote(qs->cfg,
178 QUIC_MAX_DATA);
179 quiche_config_set_initial_max_stream_data_uni(qs->cfg, QUIC_MAX_DATA);
180 quiche_config_set_initial_max_streams_bidi(qs->cfg, QUIC_MAX_STREAMS);
181 quiche_config_set_initial_max_streams_uni(qs->cfg, QUIC_MAX_STREAMS);
182 quiche_config_set_application_protos(qs->cfg,
183 (uint8_t *)
184 QUICHE_H3_APPLICATION_PROTOCOL,
185 sizeof(QUICHE_H3_APPLICATION_PROTOCOL)
186 - 1);
187
188 result = Curl_rand(data, qs->scid, sizeof(qs->scid));
189 if(result)
190 return result;
191
192 if(getenv("SSLKEYLOGFILE"))
193 quiche_config_log_keys(qs->cfg);
194
195 qs->conn = quiche_connect(conn->host.name, (const uint8_t *) qs->scid,
196 sizeof(qs->scid), qs->cfg);
197 if(!qs->conn) {
198 failf(data, "can't create quiche connection");
199 return CURLE_OUT_OF_MEMORY;
200 }
201
202 result = flush_egress(conn, sockfd, qs);
203 if(result)
204 return result;
205
206 /* store the used address as a string */
207 if(!Curl_addr2string((struct sockaddr*)addr, addrlen,
208 conn->primary_ip, &conn->primary_port)) {
209 char buffer[STRERROR_LEN];
210 failf(data, "ssrem inet_ntop() failed with errno %d: %s",
211 SOCKERRNO, Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
212 return CURLE_BAD_FUNCTION_ARGUMENT;
213 }
214 memcpy(conn->ip_addr_str, conn->primary_ip, MAX_IPADR_LEN);
215 Curl_persistconninfo(conn);
216
217 /* for connection reuse purposes: */
218 conn->ssl[FIRSTSOCKET].state = ssl_connection_complete;
219
220 infof(data, "Sent QUIC client Initial, ALPN: %s\n",
221 QUICHE_H3_APPLICATION_PROTOCOL + 1);
222
223 return CURLE_OK;
224}
225
226static CURLcode quiche_has_connected(struct connectdata *conn,
227 int sockindex,
228 int tempindex)
229{
230 CURLcode result;
231 struct quicsocket *qs = conn->quic = &conn->hequic[tempindex];
232
233 conn->recv[sockindex] = h3_stream_recv;
234 conn->send[sockindex] = h3_stream_send;
235 conn->handler = &Curl_handler_http3;
236 conn->bits.multiplex = TRUE; /* at least potentially multiplexed */
237 conn->httpversion = 30;
238 conn->bundle->multiuse = BUNDLE_MULTIPLEX;
239
240 qs->h3config = quiche_h3_config_new();
241 if(!qs->h3config)
242 return CURLE_OUT_OF_MEMORY;
243
244 /* Create a new HTTP/3 connection on the QUIC connection. */
245 qs->h3c = quiche_h3_conn_new_with_transport(qs->conn, qs->h3config);
246 if(!qs->h3c) {
247 result = CURLE_OUT_OF_MEMORY;
248 goto fail;
249 }
250 if(conn->hequic[1-tempindex].cfg) {
251 qs = &conn->hequic[1-tempindex];
252 quiche_config_free(qs->cfg);
253 quiche_conn_free(qs->conn);
254 qs->cfg = NULL;
255 qs->conn = NULL;
256 }
257 return CURLE_OK;
258 fail:
259 quiche_h3_config_free(qs->h3config);
260 quiche_h3_conn_free(qs->h3c);
261 return result;
262}
263
264/*
265 * This function gets polled to check if this QUIC connection has connected.
266 */
267CURLcode Curl_quic_is_connected(struct connectdata *conn, int sockindex,
268 bool *done)
269{
270 CURLcode result;
271 struct quicsocket *qs = &conn->hequic[sockindex];
272 curl_socket_t sockfd = conn->tempsock[sockindex];
273
274 result = process_ingress(conn, sockfd, qs);
275 if(result)
276 return result;
277
278 result = flush_egress(conn, sockfd, qs);
279 if(result)
280 return result;
281
282 if(quiche_conn_is_established(qs->conn)) {
283 *done = TRUE;
284 result = quiche_has_connected(conn, 0, sockindex);
285 DEBUGF(infof(conn->data, "quiche established connection!\n"));
286 }
287
288 return result;
289}
290
291static CURLcode process_ingress(struct connectdata *conn, int sockfd,
292 struct quicsocket *qs)
293{
294 ssize_t recvd;
295 struct Curl_easy *data = conn->data;
296 uint8_t *buf = (uint8_t *)data->state.buffer;
297 size_t bufsize = data->set.buffer_size;
298
299 /* in case the timeout expired */
300 quiche_conn_on_timeout(qs->conn);
301
302 do {
303 recvd = recv(sockfd, buf, bufsize, 0);
304 if((recvd < 0) && ((SOCKERRNO == EAGAIN) || (SOCKERRNO == EWOULDBLOCK)))
305 break;
306
307 if(recvd < 0) {
308 failf(conn->data, "quiche: recv() unexpectedly returned %d "
309 "(errno: %d, socket %d)", recvd, SOCKERRNO, sockfd);
310 return CURLE_RECV_ERROR;
311 }
312
313 recvd = quiche_conn_recv(qs->conn, buf, recvd);
314 if(recvd == QUICHE_ERR_DONE)
315 break;
316
317 if(recvd < 0) {
318 failf(conn->data, "quiche_conn_recv() == %d", recvd);
319 return CURLE_RECV_ERROR;
320 }
321 } while(1);
322
323 return CURLE_OK;
324}
325
326/*
327 * flush_egress drains the buffers and sends off data.
328 * Calls failf() on errors.
329 */
330static CURLcode flush_egress(struct connectdata *conn, int sockfd,
331 struct quicsocket *qs)
332{
333 ssize_t sent;
334 static uint8_t out[1200];
335 int64_t timeout_ns;
336
337 do {
338 sent = quiche_conn_send(qs->conn, out, sizeof(out));
339 if(sent == QUICHE_ERR_DONE)
340 break;
341
342 if(sent < 0) {
343 failf(conn->data, "quiche_conn_send returned %zd\n",
344 sent);
345 return CURLE_SEND_ERROR;
346 }
347
348 sent = send(sockfd, out, sent, 0);
349 if(sent < 0) {
350 failf(conn->data, "send() returned %zd\n", sent);
351 return CURLE_SEND_ERROR;
352 }
353 } while(1);
354
355 /* time until the next timeout event, as nanoseconds. */
356 timeout_ns = quiche_conn_timeout_as_nanos(qs->conn);
357 if(timeout_ns)
358 /* expire uses milliseconds */
359 Curl_expire(conn->data, (timeout_ns + 999999) / 1000000, EXPIRE_QUIC);
360
361 return CURLE_OK;
362}
363
364struct h3h1header {
365 char *dest;
366 size_t destlen; /* left to use */
367 size_t nlen; /* used */
368};
369
370static int cb_each_header(uint8_t *name, size_t name_len,
371 uint8_t *value, size_t value_len,
372 void *argp)
373{
374 struct h3h1header *headers = (struct h3h1header *)argp;
375 size_t olen = 0;
376
377 if((name_len == 7) && !strncmp(":status", (char *)name, 7)) {
378 msnprintf(headers->dest,
379 headers->destlen, "HTTP/3 %.*s\n",
380 (int) value_len, value);
381 }
382 else if(!headers->nlen) {
383 return CURLE_HTTP3;
384 }
385 else {
386 msnprintf(headers->dest,
387 headers->destlen, "%.*s: %.*s\n",
388 (int)name_len, name, (int) value_len, value);
389 }
390 olen = strlen(headers->dest);
391 headers->destlen -= olen;
392 headers->nlen += olen;
393 headers->dest += olen;
394 return 0;
395}
396
397static ssize_t h3_stream_recv(struct connectdata *conn,
398 int sockindex,
399 char *buf,
400 size_t buffersize,
401 CURLcode *curlcode)
402{
403 ssize_t recvd = -1;
404 ssize_t rcode;
405 struct quicsocket *qs = conn->quic;
406 curl_socket_t sockfd = conn->sock[sockindex];
407 quiche_h3_event *ev;
408 int rc;
409 struct h3h1header headers;
410 struct Curl_easy *data = conn->data;
411 struct HTTP *stream = data->req.protop;
412 headers.dest = buf;
413 headers.destlen = buffersize;
414 headers.nlen = 0;
415
416 if(process_ingress(conn, sockfd, qs)) {
417 infof(data, "h3_stream_recv returns on ingress\n");
418 *curlcode = CURLE_RECV_ERROR;
419 return -1;
420 }
421
422 while(recvd < 0) {
423 int64_t s = quiche_h3_conn_poll(qs->h3c, qs->conn, &ev);
424 if(s < 0)
425 /* nothing more to do */
426 break;
427
428 if(s != stream->stream3_id) {
429 /* another transfer, ignore for now */
430 infof(data, "Got h3 for stream %u, expects %u\n",
431 s, stream->stream3_id);
432 continue;
433 }
434
435 switch(quiche_h3_event_type(ev)) {
436 case QUICHE_H3_EVENT_HEADERS:
437 rc = quiche_h3_event_for_each_header(ev, cb_each_header, &headers);
438 if(rc) {
439 *curlcode = rc;
440 failf(data, "Error in HTTP/3 response header");
441 break;
442 }
443 recvd = headers.nlen;
444 break;
445 case QUICHE_H3_EVENT_DATA:
446 if(!stream->firstbody) {
447 /* add a header-body separator CRLF */
448 buf[0] = '\r';
449 buf[1] = '\n';
450 buf += 2;
451 buffersize -= 2;
452 stream->firstbody = TRUE;
453 recvd = 2; /* two bytes already */
454 }
455 else
456 recvd = 0;
457 rcode = quiche_h3_recv_body(qs->h3c, qs->conn, s, (unsigned char *)buf,
458 buffersize);
459 if(rcode <= 0) {
460 recvd = -1;
461 break;
462 }
463 recvd += rcode;
464 break;
465
466 case QUICHE_H3_EVENT_FINISHED:
467 streamclose(conn, "End of stream");
468 recvd = 0; /* end of stream */
469 break;
470 default:
471 break;
472 }
473
474 quiche_h3_event_free(ev);
475 }
476 if(flush_egress(conn, sockfd, qs)) {
477 *curlcode = CURLE_SEND_ERROR;
478 return -1;
479 }
480
481 *curlcode = (-1 == recvd)? CURLE_AGAIN : CURLE_OK;
482 if(recvd >= 0)
483 /* Get this called again to drain the event queue */
484 Curl_expire(data, 0, EXPIRE_QUIC);
485
486 data->state.drain = (recvd >= 0) ? 1 : 0;
487 return recvd;
488}
489
490static ssize_t h3_stream_send(struct connectdata *conn,
491 int sockindex,
492 const void *mem,
493 size_t len,
494 CURLcode *curlcode)
495{
496 ssize_t sent;
497 struct quicsocket *qs = conn->quic;
498 curl_socket_t sockfd = conn->sock[sockindex];
499 struct HTTP *stream = conn->data->req.protop;
500
501 if(!stream->h3req) {
502 CURLcode result = http_request(conn, mem, len);
503 if(result) {
504 *curlcode = CURLE_SEND_ERROR;
505 return -1;
506 }
507 sent = len;
508 }
509 else {
510 H3BUGF(infof(conn->data, "Pass on %zd body bytes to quiche\n",
511 len));
512 sent = quiche_h3_send_body(qs->h3c, qs->conn, stream->stream3_id,
513 (uint8_t *)mem, len, FALSE);
514 if(sent < 0) {
515 *curlcode = CURLE_SEND_ERROR;
516 return -1;
517 }
518 }
519
520 if(flush_egress(conn, sockfd, qs)) {
521 *curlcode = CURLE_SEND_ERROR;
522 return -1;
523 }
524
525 *curlcode = CURLE_OK;
526 return sent;
527}
528
529/*
530 * Store quiche version info in this buffer, Prefix with a space. Return total
531 * length written.
532 */
533int Curl_quic_ver(char *p, size_t len)
534{
535 return msnprintf(p, len, " quiche/%s", quiche_version());
536}
537
538/* Index where :authority header field will appear in request header
539 field list. */
540#define AUTHORITY_DST_IDX 3
541
542static CURLcode http_request(struct connectdata *conn, const void *mem,
543 size_t len)
544{
545 /*
546 */
547 struct HTTP *stream = conn->data->req.protop;
548 size_t nheader;
549 size_t i;
550 size_t authority_idx;
551 char *hdbuf = (char *)mem;
552 char *end, *line_end;
553 int64_t stream3_id;
554 quiche_h3_header *nva = NULL;
555 struct quicsocket *qs = conn->quic;
556 CURLcode result = CURLE_OK;
557 struct Curl_easy *data = conn->data;
558
559 stream->h3req = TRUE; /* senf off! */
560
561 /* Calculate number of headers contained in [mem, mem + len). Assumes a
562 correctly generated HTTP header field block. */
563 nheader = 0;
564 for(i = 1; i < len; ++i) {
565 if(hdbuf[i] == '\n' && hdbuf[i - 1] == '\r') {
566 ++nheader;
567 ++i;
568 }
569 }
570 if(nheader < 2)
571 goto fail;
572
573 /* We counted additional 2 \r\n in the first and last line. We need 3
574 new headers: :method, :path and :scheme. Therefore we need one
575 more space. */
576 nheader += 1;
577 nva = malloc(sizeof(quiche_h3_header) * nheader);
578 if(!nva) {
579 result = CURLE_OUT_OF_MEMORY;
580 goto fail;
581 }
582
583 /* Extract :method, :path from request line
584 We do line endings with CRLF so checking for CR is enough */
585 line_end = memchr(hdbuf, '\r', len);
586 if(!line_end) {
587 result = CURLE_BAD_FUNCTION_ARGUMENT; /* internal error */
588 goto fail;
589 }
590
591 /* Method does not contain spaces */
592 end = memchr(hdbuf, ' ', line_end - hdbuf);
593 if(!end || end == hdbuf)
594 goto fail;
595 nva[0].name = (unsigned char *)":method";
596 nva[0].name_len = strlen((char *)nva[0].name);
597 nva[0].value = (unsigned char *)hdbuf;
598 nva[0].value_len = (size_t)(end - hdbuf);
599
600 hdbuf = end + 1;
601
602 /* Path may contain spaces so scan backwards */
603 end = NULL;
604 for(i = (size_t)(line_end - hdbuf); i; --i) {
605 if(hdbuf[i - 1] == ' ') {
606 end = &hdbuf[i - 1];
607 break;
608 }
609 }
610 if(!end || end == hdbuf)
611 goto fail;
612 nva[1].name = (unsigned char *)":path";
613 nva[1].name_len = strlen((char *)nva[1].name);
614 nva[1].value = (unsigned char *)hdbuf;
615 nva[1].value_len = (size_t)(end - hdbuf);
616
617 nva[2].name = (unsigned char *)":scheme";
618 nva[2].name_len = strlen((char *)nva[2].name);
619 if(conn->handler->flags & PROTOPT_SSL)
620 nva[2].value = (unsigned char *)"https";
621 else
622 nva[2].value = (unsigned char *)"http";
623 nva[2].value_len = strlen((char *)nva[2].value);
624
625
626 authority_idx = 0;
627 i = 3;
628 while(i < nheader) {
629 size_t hlen;
630
631 hdbuf = line_end + 2;
632
633 /* check for next CR, but only within the piece of data left in the given
634 buffer */
635 line_end = memchr(hdbuf, '\r', len - (hdbuf - (char *)mem));
636 if(!line_end || (line_end == hdbuf))
637 goto fail;
638
639 /* header continuation lines are not supported */
640 if(*hdbuf == ' ' || *hdbuf == '\t')
641 goto fail;
642
643 for(end = hdbuf; end < line_end && *end != ':'; ++end)
644 ;
645 if(end == hdbuf || end == line_end)
646 goto fail;
647 hlen = end - hdbuf;
648
649 if(hlen == 4 && strncasecompare("host", hdbuf, 4)) {
650 authority_idx = i;
651 nva[i].name = (unsigned char *)":authority";
652 nva[i].name_len = strlen((char *)nva[i].name);
653 }
654 else {
655 nva[i].name_len = (size_t)(end - hdbuf);
656 /* Lower case the header name for HTTP/3 */
657 Curl_strntolower((char *)hdbuf, hdbuf, nva[i].name_len);
658 nva[i].name = (unsigned char *)hdbuf;
659 }
660 hdbuf = end + 1;
661 while(*hdbuf == ' ' || *hdbuf == '\t')
662 ++hdbuf;
663 end = line_end;
664
665#if 0 /* This should probably go in more or less like this */
666 switch(inspect_header((const char *)nva[i].name, nva[i].namelen, hdbuf,
667 end - hdbuf)) {
668 case HEADERINST_IGNORE:
669 /* skip header fields prohibited by HTTP/2 specification. */
670 --nheader;
671 continue;
672 case HEADERINST_TE_TRAILERS:
673 nva[i].value = (uint8_t*)"trailers";
674 nva[i].value_len = sizeof("trailers") - 1;
675 break;
676 default:
677 nva[i].value = (unsigned char *)hdbuf;
678 nva[i].value_len = (size_t)(end - hdbuf);
679 }
680#endif
681 nva[i].value = (unsigned char *)hdbuf;
682 nva[i].value_len = (size_t)(end - hdbuf);
683
684 ++i;
685 }
686
687 /* :authority must come before non-pseudo header fields */
688 if(authority_idx != 0 && authority_idx != AUTHORITY_DST_IDX) {
689 quiche_h3_header authority = nva[authority_idx];
690 for(i = authority_idx; i > AUTHORITY_DST_IDX; --i) {
691 nva[i] = nva[i - 1];
692 }
693 nva[i] = authority;
694 }
695
696 /* Warn stream may be rejected if cumulative length of headers is too
697 large. */
698#define MAX_ACC 60000 /* <64KB to account for some overhead */
699 {
700 size_t acc = 0;
701
702 for(i = 0; i < nheader; ++i) {
703 acc += nva[i].name_len + nva[i].value_len;
704
705 H3BUGF(infof(data, "h3 [%.*s: %.*s]\n",
706 nva[i].name_len, nva[i].name,
707 nva[i].value_len, nva[i].value));
708 }
709
710 if(acc > MAX_ACC) {
711 infof(data, "http_request: Warning: The cumulative length of all "
712 "headers exceeds %zu bytes and that could cause the "
713 "stream to be rejected.\n", MAX_ACC);
714 }
715 }
716
717 switch(data->set.httpreq) {
718 case HTTPREQ_POST:
719 case HTTPREQ_POST_FORM:
720 case HTTPREQ_POST_MIME:
721 case HTTPREQ_PUT:
722 if(data->state.infilesize != -1)
723 stream->upload_left = data->state.infilesize;
724 else
725 /* data sending without specifying the data amount up front */
726 stream->upload_left = -1; /* unknown, but not zero */
727
728 stream3_id = quiche_h3_send_request(qs->h3c, qs->conn, nva, nheader,
729 stream->upload_left ? FALSE: TRUE);
730 if((stream3_id >= 0) && data->set.postfields) {
731 ssize_t sent = quiche_h3_send_body(qs->h3c, qs->conn, stream3_id,
732 (uint8_t *)data->set.postfields,
733 stream->upload_left, TRUE);
734 if(sent <= 0) {
735 failf(data, "quiche_h3_send_body failed!");
736 result = CURLE_SEND_ERROR;
737 }
738 stream->upload_left = 0; /* nothing left to send */
739 }
740 break;
741 default:
742 stream3_id = quiche_h3_send_request(qs->h3c, qs->conn, nva, nheader,
743 TRUE);
744 break;
745 }
746
747 Curl_safefree(nva);
748
749 if(stream3_id < 0) {
750 H3BUGF(infof(data, "quiche_h3_send_request returned %d\n",
751 stream3_id));
752 result = CURLE_SEND_ERROR;
753 goto fail;
754 }
755
756 infof(data, "Using HTTP/3 Stream ID: %x (easy handle %p)\n",
757 stream3_id, (void *)data);
758 stream->stream3_id = stream3_id;
759
760 return CURLE_OK;
761
762fail:
763 free(nva);
764 return result;
765}
766
767/*
768 * Called from transfer.c:done_sending when we stop HTTP/3 uploading.
769 */
770CURLcode Curl_quic_done_sending(struct connectdata *conn)
771{
772 if(conn->handler == &Curl_handler_http3) {
773 /* only for HTTP/3 transfers */
774 ssize_t sent;
775 struct HTTP *stream = conn->data->req.protop;
776 struct quicsocket *qs = conn->quic;
777 fprintf(stderr, "!!! Curl_quic_done_sending\n");
778 stream->upload_done = TRUE;
779 sent = quiche_h3_send_body(qs->h3c, qs->conn, stream->stream3_id,
780 NULL, 0, TRUE);
781 if(sent < 0)
782 return CURLE_SEND_ERROR;
783 }
784
785 return CURLE_OK;
786}
787
788/*
789 * Called from http.c:Curl_http_done when a request completes.
790 */
791void Curl_quic_done(struct Curl_easy *data, bool premature)
792{
793 (void)data;
794 (void)premature;
795}
796
797/*
798 * Called from transfer.c:data_pending to know if we should keep looping
799 * to receive more data from the connection.
800 */
801bool Curl_quic_data_pending(const struct Curl_easy *data)
802{
803 (void)data;
804 return FALSE;
805}
806
807#endif
808