1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_QUICHE
#include <quiche.h>
#include <openssl/err.h>
#include "urldata.h"
#include "sendf.h"
#include "strdup.h"
#include "rand.h"
#include "quic.h"
#include "strcase.h"
#include "multiif.h"
#include "connect.h"
#include "strerror.h"
#include "vquic.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define DEBUG_HTTP3
/* #define DEBUG_QUICHE */
#ifdef DEBUG_HTTP3
#define H3BUGF(x) x
#else
#define H3BUGF(x) do { } while(0)
#endif
#define QUIC_MAX_STREAMS (256*1024)
#define QUIC_MAX_DATA (1*1024*1024)
#define QUIC_IDLE_TIMEOUT (60 * 1000) /* milliseconds */
static CURLcode process_ingress(struct connectdata *conn,
curl_socket_t sockfd,
struct quicsocket *qs);
static CURLcode flush_egress(struct connectdata *conn, curl_socket_t sockfd,
struct quicsocket *qs);
static CURLcode http_request(struct connectdata *conn, const void *mem,
size_t len);
static Curl_recv h3_stream_recv;
static Curl_send h3_stream_send;
static int quiche_getsock(struct connectdata *conn, curl_socket_t *socks)
{
struct SingleRequest *k = &conn->data->req;
int bitmap = GETSOCK_BLANK;
socks[0] = conn->sock[FIRSTSOCKET];
/* in a HTTP/2 connection we can basically always get a frame so we should
always be ready for one */
bitmap |= GETSOCK_READSOCK(FIRSTSOCKET);
/* we're still uploading or the HTTP/2 layer wants to send data */
if((k->keepon & (KEEP_SEND|KEEP_SEND_PAUSE)) == KEEP_SEND)
bitmap |= GETSOCK_WRITESOCK(FIRSTSOCKET);
return bitmap;
}
static int quiche_perform_getsock(const struct connectdata *conn,
curl_socket_t *socks)
{
return quiche_getsock((struct connectdata *)conn, socks);
}
static CURLcode qs_disconnect(struct quicsocket *qs)
{
if(qs->h3config)
quiche_h3_config_free(qs->h3config);
if(qs->h3c)
quiche_h3_conn_free(qs->h3c);
quiche_config_free(qs->cfg);
quiche_conn_free(qs->conn);
return CURLE_OK;
}
static CURLcode quiche_disconnect(struct connectdata *conn,
bool dead_connection)
{
struct quicsocket *qs = conn->quic;
(void)dead_connection;
return qs_disconnect(qs);
}
void Curl_quic_disconnect(struct connectdata *conn,
int tempindex)
{
if(conn->transport == TRNSPRT_QUIC)
qs_disconnect(&conn->hequic[tempindex]);
}
static unsigned int quiche_conncheck(struct connectdata *conn,
unsigned int checks_to_perform)
{
(void)conn;
(void)checks_to_perform;
return CONNRESULT_NONE;
}
static CURLcode quiche_do(struct connectdata *conn, bool *done)
{
struct HTTP *stream = conn->data->req.protop;
stream->h3req = FALSE; /* not sent */
return Curl_http(conn, done);
}
static const struct Curl_handler Curl_handler_http3 = {
"HTTPS", /* scheme */
ZERO_NULL, /* setup_connection */
quiche_do, /* do_it */
Curl_http_done, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
quiche_getsock, /* proto_getsock */
quiche_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
quiche_perform_getsock, /* perform_getsock */
quiche_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
quiche_conncheck, /* connection_check */
PORT_HTTP, /* defport */
CURLPROTO_HTTPS, /* protocol */
PROTOPT_SSL | PROTOPT_STREAM /* flags */
};
#ifdef DEBUG_QUICHE
static void quiche_debug_log(const char *line, void *argp)
{
(void)argp;
fprintf(stderr, "%s\n", line);
}
#endif
CURLcode Curl_quic_connect(struct connectdata *conn, curl_socket_t sockfd,
int sockindex,
const struct sockaddr *addr, socklen_t addrlen)
{
CURLcode result;
struct quicsocket *qs = &conn->hequic[sockindex];
struct Curl_easy *data = conn->data;
char *keylog_file = NULL;
#ifdef DEBUG_QUICHE
/* initialize debug log callback only once */
static int debug_log_init = 0;
if(!debug_log_init) {
quiche_enable_debug_logging(quiche_debug_log, NULL);
debug_log_init = 1;
}
#endif
(void)addr;
(void)addrlen;
qs->cfg = quiche_config_new(QUICHE_PROTOCOL_VERSION);
if(!qs->cfg) {
failf(data, "can't create quiche config");
return CURLE_FAILED_INIT;
}
quiche_config_set_max_idle_timeout(qs->cfg, QUIC_IDLE_TIMEOUT);
quiche_config_set_initial_max_data(qs->cfg, QUIC_MAX_DATA);
quiche_config_set_initial_max_stream_data_bidi_local(qs->cfg, QUIC_MAX_DATA);
quiche_config_set_initial_max_stream_data_bidi_remote(qs->cfg,
QUIC_MAX_DATA);
quiche_config_set_initial_max_stream_data_uni(qs->cfg, QUIC_MAX_DATA);
quiche_config_set_initial_max_streams_bidi(qs->cfg, QUIC_MAX_STREAMS);
quiche_config_set_initial_max_streams_uni(qs->cfg, QUIC_MAX_STREAMS);
quiche_config_set_application_protos(qs->cfg,
(uint8_t *)
QUICHE_H3_APPLICATION_PROTOCOL,
sizeof(QUICHE_H3_APPLICATION_PROTOCOL)
- 1);
result = Curl_rand(data, qs->scid, sizeof(qs->scid));
if(result)
return result;
keylog_file = getenv("SSLKEYLOGFILE");
if(keylog_file)
quiche_config_log_keys(qs->cfg);
qs->conn = quiche_connect(conn->host.name, (const uint8_t *) qs->scid,
sizeof(qs->scid), qs->cfg);
if(!qs->conn) {
failf(data, "can't create quiche connection");
return CURLE_OUT_OF_MEMORY;
}
if(keylog_file)
quiche_conn_set_keylog_path(qs->conn, keylog_file);
/* Known to not work on Windows */
#if !defined(WIN32) && defined(HAVE_QUICHE_CONN_SET_QLOG_FD)
{
int qfd;
(void)Curl_qlogdir(data, qs->scid, sizeof(qs->scid), &qfd);
if(qfd != -1)
quiche_conn_set_qlog_fd(qs->conn, qfd,
"qlog title", "curl qlog");
}
#endif
result = flush_egress(conn, sockfd, qs);
if(result)
return result;
/* store the used address as a string */
if(!Curl_addr2string((struct sockaddr*)addr, addrlen,
conn->primary_ip, &conn->primary_port)) {
char buffer[STRERROR_LEN];
failf(data, "ssrem inet_ntop() failed with errno %d: %s",
SOCKERRNO, Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_BAD_FUNCTION_ARGUMENT;
}
memcpy(conn->ip_addr_str, conn->primary_ip, MAX_IPADR_LEN);
Curl_persistconninfo(conn);
/* for connection reuse purposes: */
conn->ssl[FIRSTSOCKET].state = ssl_connection_complete;
{
unsigned char alpn_protocols[] = QUICHE_H3_APPLICATION_PROTOCOL;
unsigned alpn_len, offset = 0;
/* Replace each ALPN length prefix by a comma. */
while(offset < sizeof(alpn_protocols) - 1) {
alpn_len = alpn_protocols[offset];
alpn_protocols[offset] = ',';
offset += 1 + alpn_len;
}
infof(data, "Sent QUIC client Initial, ALPN: %s\n",
alpn_protocols + 1);
}
return CURLE_OK;
}
static CURLcode quiche_has_connected(struct connectdata *conn,
int sockindex,
int tempindex)
{
CURLcode result;
struct quicsocket *qs = conn->quic = &conn->hequic[tempindex];
conn->recv[sockindex] = h3_stream_recv;
conn->send[sockindex] = h3_stream_send;
conn->handler = &Curl_handler_http3;
conn->bits.multiplex = TRUE; /* at least potentially multiplexed */
conn->httpversion = 30;
conn->bundle->multiuse = BUNDLE_MULTIPLEX;
qs->h3config = quiche_h3_config_new();
if(!qs->h3config)
return CURLE_OUT_OF_MEMORY;
/* Create a new HTTP/3 connection on the QUIC connection. */
qs->h3c = quiche_h3_conn_new_with_transport(qs->conn, qs->h3config);
if(!qs->h3c) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
if(conn->hequic[1-tempindex].cfg) {
qs = &conn->hequic[1-tempindex];
quiche_config_free(qs->cfg);
quiche_conn_free(qs->conn);
qs->cfg = NULL;
qs->conn = NULL;
}
return CURLE_OK;
fail:
quiche_h3_config_free(qs->h3config);
quiche_h3_conn_free(qs->h3c);
return result;
}
/*
* This function gets polled to check if this QUIC connection has connected.
*/
CURLcode Curl_quic_is_connected(struct connectdata *conn, int sockindex,
bool *done)
{
CURLcode result;
struct quicsocket *qs = &conn->hequic[sockindex];
curl_socket_t sockfd = conn->tempsock[sockindex];
result = process_ingress(conn, sockfd, qs);
if(result)
goto error;
result = flush_egress(conn, sockfd, qs);
if(result)
goto error;
if(quiche_conn_is_established(qs->conn)) {
*done = TRUE;
result = quiche_has_connected(conn, 0, sockindex);
DEBUGF(infof(conn->data, "quiche established connection!\n"));
}
return result;
error:
qs_disconnect(qs);
return result;
}
static CURLcode process_ingress(struct connectdata *conn, int sockfd,
struct quicsocket *qs)
{
ssize_t recvd;
struct Curl_easy *data = conn->data;
uint8_t *buf = (uint8_t *)data->state.buffer;
size_t bufsize = data->set.buffer_size;
/* in case the timeout expired */
quiche_conn_on_timeout(qs->conn);
do {
recvd = recv(sockfd, buf, bufsize, 0);
if((recvd < 0) && ((SOCKERRNO == EAGAIN) || (SOCKERRNO == EWOULDBLOCK)))
break;
if(recvd < 0) {
failf(conn->data, "quiche: recv() unexpectedly returned %d "
"(errno: %d, socket %d)", recvd, SOCKERRNO, sockfd);
return CURLE_RECV_ERROR;
}
recvd = quiche_conn_recv(qs->conn, buf, recvd);
if(recvd == QUICHE_ERR_DONE)
break;
if(recvd < 0) {
failf(conn->data, "quiche_conn_recv() == %d", recvd);
return CURLE_RECV_ERROR;
}
} while(1);
return CURLE_OK;
}
/*
* flush_egress drains the buffers and sends off data.
* Calls failf() on errors.
*/
static CURLcode flush_egress(struct connectdata *conn, int sockfd,
struct quicsocket *qs)
{
ssize_t sent;
static uint8_t out[1200];
int64_t timeout_ns;
do {
sent = quiche_conn_send(qs->conn, out, sizeof(out));
if(sent == QUICHE_ERR_DONE)
break;
if(sent < 0) {
failf(conn->data, "quiche_conn_send returned %zd\n",
sent);
return CURLE_SEND_ERROR;
}
sent = send(sockfd, out, sent, 0);
if(sent < 0) {
failf(conn->data, "send() returned %zd\n", sent);
return CURLE_SEND_ERROR;
}
} while(1);
/* time until the next timeout event, as nanoseconds. */
timeout_ns = quiche_conn_timeout_as_nanos(qs->conn);
if(timeout_ns)
/* expire uses milliseconds */
Curl_expire(conn->data, (timeout_ns + 999999) / 1000000, EXPIRE_QUIC);
return CURLE_OK;
}
struct h3h1header {
char *dest;
size_t destlen; /* left to use */
size_t nlen; /* used */
};
static int cb_each_header(uint8_t *name, size_t name_len,
uint8_t *value, size_t value_len,
void *argp)
{
struct h3h1header *headers = (struct h3h1header *)argp;
size_t olen = 0;
if((name_len == 7) && !strncmp(":status", (char *)name, 7)) {
msnprintf(headers->dest,
headers->destlen, "HTTP/3 %.*s\n",
(int) value_len, value);
}
else if(!headers->nlen) {
return CURLE_HTTP3;
}
else {
msnprintf(headers->dest,
headers->destlen, "%.*s: %.*s\n",
(int)name_len, name, (int) value_len, value);
}
olen = strlen(headers->dest);
headers->destlen -= olen;
headers->nlen += olen;
headers->dest += olen;
return 0;
}
static ssize_t h3_stream_recv(struct connectdata *conn,
int sockindex,
char *buf,
size_t buffersize,
CURLcode *curlcode)
{
ssize_t recvd = -1;
ssize_t rcode;
struct quicsocket *qs = conn->quic;
curl_socket_t sockfd = conn->sock[sockindex];
quiche_h3_event *ev;
int rc;
struct h3h1header headers;
struct Curl_easy *data = conn->data;
struct HTTP *stream = data->req.protop;
headers.dest = buf;
headers.destlen = buffersize;
headers.nlen = 0;
if(process_ingress(conn, sockfd, qs)) {
infof(data, "h3_stream_recv returns on ingress\n");
*curlcode = CURLE_RECV_ERROR;
return -1;
}
while(recvd < 0) {
int64_t s = quiche_h3_conn_poll(qs->h3c, qs->conn, &ev);
if(s < 0)
/* nothing more to do */
break;
if(s != stream->stream3_id) {
/* another transfer, ignore for now */
infof(data, "Got h3 for stream %u, expects %u\n",
s, stream->stream3_id);
continue;
}
switch(quiche_h3_event_type(ev)) {
case QUICHE_H3_EVENT_HEADERS:
rc = quiche_h3_event_for_each_header(ev, cb_each_header, &headers);
if(rc) {
*curlcode = rc;
failf(data, "Error in HTTP/3 response header");
break;
}
recvd = headers.nlen;
break;
case QUICHE_H3_EVENT_DATA:
if(!stream->firstbody) {
/* add a header-body separator CRLF */
buf[0] = '\r';
buf[1] = '\n';
buf += 2;
buffersize -= 2;
stream->firstbody = TRUE;
recvd = 2; /* two bytes already */
}
else
recvd = 0;
rcode = quiche_h3_recv_body(qs->h3c, qs->conn, s, (unsigned char *)buf,
buffersize);
if(rcode <= 0) {
recvd = -1;
break;
}
recvd += rcode;
break;
case QUICHE_H3_EVENT_FINISHED:
streamclose(conn, "End of stream");
recvd = 0; /* end of stream */
break;
default:
break;
}
quiche_h3_event_free(ev);
}
if(flush_egress(conn, sockfd, qs)) {
*curlcode = CURLE_SEND_ERROR;
return -1;
}
*curlcode = (-1 == recvd)? CURLE_AGAIN : CURLE_OK;
if(recvd >= 0)
/* Get this called again to drain the event queue */
Curl_expire(data, 0, EXPIRE_QUIC);
data->state.drain = (recvd >= 0) ? 1 : 0;
return recvd;
}
static ssize_t h3_stream_send(struct connectdata *conn,
int sockindex,
const void *mem,
size_t len,
CURLcode *curlcode)
{
ssize_t sent;
struct quicsocket *qs = conn->quic;
curl_socket_t sockfd = conn->sock[sockindex];
struct HTTP *stream = conn->data->req.protop;
if(!stream->h3req) {
CURLcode result = http_request(conn, mem, len);
if(result) {
*curlcode = CURLE_SEND_ERROR;
return -1;
}
sent = len;
}
else {
H3BUGF(infof(conn->data, "Pass on %zd body bytes to quiche\n",
len));
sent = quiche_h3_send_body(qs->h3c, qs->conn, stream->stream3_id,
(uint8_t *)mem, len, FALSE);
if(sent < 0) {
*curlcode = CURLE_SEND_ERROR;
return -1;
}
}
if(flush_egress(conn, sockfd, qs)) {
*curlcode = CURLE_SEND_ERROR;
return -1;
}
*curlcode = CURLE_OK;
return sent;
}
/*
* Store quiche version info in this buffer, Prefix with a space. Return total
* length written.
*/
int Curl_quic_ver(char *p, size_t len)
{
return msnprintf(p, len, "quiche/%s", quiche_version());
}
/* Index where :authority header field will appear in request header
field list. */
#define AUTHORITY_DST_IDX 3
static CURLcode http_request(struct connectdata *conn, const void *mem,
size_t len)
{
/*
*/
struct HTTP *stream = conn->data->req.protop;
size_t nheader;
size_t i;
size_t authority_idx;
char *hdbuf = (char *)mem;
char *end, *line_end;
int64_t stream3_id;
quiche_h3_header *nva = NULL;
struct quicsocket *qs = conn->quic;
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
stream->h3req = TRUE; /* senf off! */
/* Calculate number of headers contained in [mem, mem + len). Assumes a
correctly generated HTTP header field block. */
nheader = 0;
for(i = 1; i < len; ++i) {
if(hdbuf[i] == '\n' && hdbuf[i - 1] == '\r') {
++nheader;
++i;
}
}
if(nheader < 2)
goto fail;
/* We counted additional 2 \r\n in the first and last line. We need 3
new headers: :method, :path and :scheme. Therefore we need one
more space. */
nheader += 1;
nva = malloc(sizeof(quiche_h3_header) * nheader);
if(!nva) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
/* Extract :method, :path from request line
We do line endings with CRLF so checking for CR is enough */
line_end = memchr(hdbuf, '\r', len);
if(!line_end) {
result = CURLE_BAD_FUNCTION_ARGUMENT; /* internal error */
goto fail;
}
/* Method does not contain spaces */
end = memchr(hdbuf, ' ', line_end - hdbuf);
if(!end || end == hdbuf)
goto fail;
nva[0].name = (unsigned char *)":method";
nva[0].name_len = strlen((char *)nva[0].name);
nva[0].value = (unsigned char *)hdbuf;
nva[0].value_len = (size_t)(end - hdbuf);
hdbuf = end + 1;
/* Path may contain spaces so scan backwards */
end = NULL;
for(i = (size_t)(line_end - hdbuf); i; --i) {
if(hdbuf[i - 1] == ' ') {
end = &hdbuf[i - 1];
break;
}
}
if(!end || end == hdbuf)
goto fail;
nva[1].name = (unsigned char *)":path";
nva[1].name_len = strlen((char *)nva[1].name);
nva[1].value = (unsigned char *)hdbuf;
nva[1].value_len = (size_t)(end - hdbuf);
nva[2].name = (unsigned char *)":scheme";
nva[2].name_len = strlen((char *)nva[2].name);
if(conn->handler->flags & PROTOPT_SSL)
nva[2].value = (unsigned char *)"https";
else
nva[2].value = (unsigned char *)"http";
nva[2].value_len = strlen((char *)nva[2].value);
authority_idx = 0;
i = 3;
while(i < nheader) {
size_t hlen;
hdbuf = line_end + 2;
/* check for next CR, but only within the piece of data left in the given
buffer */
line_end = memchr(hdbuf, '\r', len - (hdbuf - (char *)mem));
if(!line_end || (line_end == hdbuf))
goto fail;
/* header continuation lines are not supported */
if(*hdbuf == ' ' || *hdbuf == '\t')
goto fail;
for(end = hdbuf; end < line_end && *end != ':'; ++end)
;
if(end == hdbuf || end == line_end)
goto fail;
hlen = end - hdbuf;
if(hlen == 4 && strncasecompare("host", hdbuf, 4)) {
authority_idx = i;
nva[i].name = (unsigned char *)":authority";
nva[i].name_len = strlen((char *)nva[i].name);
}
else {
nva[i].name_len = (size_t)(end - hdbuf);
/* Lower case the header name for HTTP/3 */
Curl_strntolower((char *)hdbuf, hdbuf, nva[i].name_len);
nva[i].name = (unsigned char *)hdbuf;
}
hdbuf = end + 1;
while(*hdbuf == ' ' || *hdbuf == '\t')
++hdbuf;
end = line_end;
#if 0 /* This should probably go in more or less like this */
switch(inspect_header((const char *)nva[i].name, nva[i].namelen, hdbuf,
end - hdbuf)) {
case HEADERINST_IGNORE:
/* skip header fields prohibited by HTTP/2 specification. */
--nheader;
continue;
case HEADERINST_TE_TRAILERS:
nva[i].value = (uint8_t*)"trailers";
nva[i].value_len = sizeof("trailers") - 1;
break;
default:
nva[i].value = (unsigned char *)hdbuf;
nva[i].value_len = (size_t)(end - hdbuf);
}
#endif
nva[i].value = (unsigned char *)hdbuf;
nva[i].value_len = (size_t)(end - hdbuf);
++i;
}
/* :authority must come before non-pseudo header fields */
if(authority_idx != 0 && authority_idx != AUTHORITY_DST_IDX) {
quiche_h3_header authority = nva[authority_idx];
for(i = authority_idx; i > AUTHORITY_DST_IDX; --i) {
nva[i] = nva[i - 1];
}
nva[i] = authority;
}
/* Warn stream may be rejected if cumulative length of headers is too
large. */
#define MAX_ACC 60000 /* <64KB to account for some overhead */
{
size_t acc = 0;
for(i = 0; i < nheader; ++i) {
acc += nva[i].name_len + nva[i].value_len;
H3BUGF(infof(data, "h3 [%.*s: %.*s]\n",
nva[i].name_len, nva[i].name,
nva[i].value_len, nva[i].value));
}
if(acc > MAX_ACC) {
infof(data, "http_request: Warning: The cumulative length of all "
"headers exceeds %zu bytes and that could cause the "
"stream to be rejected.\n", MAX_ACC);
}
}
switch(data->state.httpreq) {
case HTTPREQ_POST:
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
case HTTPREQ_PUT:
if(data->state.infilesize != -1)
stream->upload_left = data->state.infilesize;
else
/* data sending without specifying the data amount up front */
stream->upload_left = -1; /* unknown, but not zero */
stream3_id = quiche_h3_send_request(qs->h3c, qs->conn, nva, nheader,
stream->upload_left ? FALSE: TRUE);
if((stream3_id >= 0) && data->set.postfields) {
ssize_t sent = quiche_h3_send_body(qs->h3c, qs->conn, stream3_id,
(uint8_t *)data->set.postfields,
stream->upload_left, TRUE);
if(sent <= 0) {
failf(data, "quiche_h3_send_body failed!");
result = CURLE_SEND_ERROR;
}
stream->upload_left = 0; /* nothing left to send */
}
break;
default:
stream3_id = quiche_h3_send_request(qs->h3c, qs->conn, nva, nheader,
TRUE);
break;
}
Curl_safefree(nva);
if(stream3_id < 0) {
H3BUGF(infof(data, "quiche_h3_send_request returned %d\n",
stream3_id));
result = CURLE_SEND_ERROR;
goto fail;
}
infof(data, "Using HTTP/3 Stream ID: %x (easy handle %p)\n",
stream3_id, (void *)data);
stream->stream3_id = stream3_id;
return CURLE_OK;
fail:
free(nva);
return result;
}
/*
* Called from transfer.c:done_sending when we stop HTTP/3 uploading.
*/
CURLcode Curl_quic_done_sending(struct connectdata *conn)
{
if(conn->handler == &Curl_handler_http3) {
/* only for HTTP/3 transfers */
ssize_t sent;
struct HTTP *stream = conn->data->req.protop;
struct quicsocket *qs = conn->quic;
fprintf(stderr, "!!! Curl_quic_done_sending\n");
stream->upload_done = TRUE;
sent = quiche_h3_send_body(qs->h3c, qs->conn, stream->stream3_id,
NULL, 0, TRUE);
if(sent < 0)
return CURLE_SEND_ERROR;
}
return CURLE_OK;
}
/*
* Called from http.c:Curl_http_done when a request completes.
*/
void Curl_quic_done(struct Curl_easy *data, bool premature)
{
(void)data;
(void)premature;
}
/*
* Called from transfer.c:data_pending to know if we should keep looping
* to receive more data from the connection.
*/
bool Curl_quic_data_pending(const struct Curl_easy *data)
{
(void)data;
return FALSE;
}
#endif
|