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1 /*
2 * Copyright 2016-2019 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 #include <string.h>
11
12 #include "internal/nelem.h"
13 #include "ssltestlib.h"
14 #include "testutil.h"
15 #include "e_os.h"
16
17 #ifdef OPENSSL_SYS_UNIX
18 # include <unistd.h>
19 #ifndef OPENSSL_NO_KTLS
20 # include <netinet/in.h>
21 # include <netinet/in.h>
22 # include <arpa/inet.h>
23 # include <sys/socket.h>
24 # include <unistd.h>
25 # include <fcntl.h>
26 #endif
27
28 static ossl_inline void ossl_sleep(unsigned int millis)
29 {
30 # ifdef OPENSSL_SYS_VXWORKS
31 struct timespec ts;
32 ts.tv_sec = (long int) (millis / 1000);
33 ts.tv_nsec = (long int) (millis % 1000) * 1000000ul;
34 nanosleep(&ts, NULL);
35 # else
36 usleep(millis * 1000);
37 # endif
38 }
39 #elif defined(_WIN32)
40 # include <windows.h>
41
42 static ossl_inline void ossl_sleep(unsigned int millis)
43 {
44 Sleep(millis);
45 }
46 #else
47 /* Fallback to a busy wait */
48 static ossl_inline void ossl_sleep(unsigned int millis)
49 {
50 struct timeval start, now;
51 unsigned int elapsedms;
52
53 gettimeofday(&start, NULL);
54 do {
55 gettimeofday(&now, NULL);
56 elapsedms = (((now.tv_sec - start.tv_sec) * 1000000)
57 + now.tv_usec - start.tv_usec) / 1000;
58 } while (elapsedms < millis);
59 }
60 #endif
61
62 static int tls_dump_new(BIO *bi);
63 static int tls_dump_free(BIO *a);
64 static int tls_dump_read(BIO *b, char *out, int outl);
65 static int tls_dump_write(BIO *b, const char *in, int inl);
66 static long tls_dump_ctrl(BIO *b, int cmd, long num, void *ptr);
67 static int tls_dump_gets(BIO *bp, char *buf, int size);
68 static int tls_dump_puts(BIO *bp, const char *str);
69
70 /* Choose a sufficiently large type likely to be unused for this custom BIO */
71 #define BIO_TYPE_TLS_DUMP_FILTER (0x80 | BIO_TYPE_FILTER)
72 #define BIO_TYPE_MEMPACKET_TEST 0x81
73
74 static BIO_METHOD *method_tls_dump = NULL;
75 static BIO_METHOD *meth_mem = NULL;
76
77 /* Note: Not thread safe! */
78 const BIO_METHOD *bio_f_tls_dump_filter(void)
79 {
80 if (method_tls_dump == NULL) {
81 method_tls_dump = BIO_meth_new(BIO_TYPE_TLS_DUMP_FILTER,
82 "TLS dump filter");
83 if ( method_tls_dump == NULL
84 || !BIO_meth_set_write(method_tls_dump, tls_dump_write)
85 || !BIO_meth_set_read(method_tls_dump, tls_dump_read)
86 || !BIO_meth_set_puts(method_tls_dump, tls_dump_puts)
87 || !BIO_meth_set_gets(method_tls_dump, tls_dump_gets)
88 || !BIO_meth_set_ctrl(method_tls_dump, tls_dump_ctrl)
89 || !BIO_meth_set_create(method_tls_dump, tls_dump_new)
90 || !BIO_meth_set_destroy(method_tls_dump, tls_dump_free))
91 return NULL;
92 }
93 return method_tls_dump;
94 }
95
96 void bio_f_tls_dump_filter_free(void)
97 {
98 BIO_meth_free(method_tls_dump);
99 }
100
101 static int tls_dump_new(BIO *bio)
102 {
103 BIO_set_init(bio, 1);
104 return 1;
105 }
106
107 static int tls_dump_free(BIO *bio)
108 {
109 BIO_set_init(bio, 0);
110
111 return 1;
112 }
113
114 static void copy_flags(BIO *bio)
115 {
116 int flags;
117 BIO *next = BIO_next(bio);
118
119 flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
120 BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
121 BIO_set_flags(bio, flags);
122 }
123
124 #define RECORD_CONTENT_TYPE 0
125 #define RECORD_VERSION_HI 1
126 #define RECORD_VERSION_LO 2
127 #define RECORD_EPOCH_HI 3
128 #define RECORD_EPOCH_LO 4
129 #define RECORD_SEQUENCE_START 5
130 #define RECORD_SEQUENCE_END 10
131 #define RECORD_LEN_HI 11
132 #define RECORD_LEN_LO 12
133
134 #define MSG_TYPE 0
135 #define MSG_LEN_HI 1
136 #define MSG_LEN_MID 2
137 #define MSG_LEN_LO 3
138 #define MSG_SEQ_HI 4
139 #define MSG_SEQ_LO 5
140 #define MSG_FRAG_OFF_HI 6
141 #define MSG_FRAG_OFF_MID 7
142 #define MSG_FRAG_OFF_LO 8
143 #define MSG_FRAG_LEN_HI 9
144 #define MSG_FRAG_LEN_MID 10
145 #define MSG_FRAG_LEN_LO 11
146
147
148 static void dump_data(const char *data, int len)
149 {
150 int rem, i, content, reclen, msglen, fragoff, fraglen, epoch;
151 unsigned char *rec;
152
153 printf("---- START OF PACKET ----\n");
154
155 rem = len;
156 rec = (unsigned char *)data;
157
158 while (rem > 0) {
159 if (rem != len)
160 printf("*\n");
161 printf("*---- START OF RECORD ----\n");
162 if (rem < DTLS1_RT_HEADER_LENGTH) {
163 printf("*---- RECORD TRUNCATED ----\n");
164 break;
165 }
166 content = rec[RECORD_CONTENT_TYPE];
167 printf("** Record Content-type: %d\n", content);
168 printf("** Record Version: %02x%02x\n",
169 rec[RECORD_VERSION_HI], rec[RECORD_VERSION_LO]);
170 epoch = (rec[RECORD_EPOCH_HI] << 8) | rec[RECORD_EPOCH_LO];
171 printf("** Record Epoch: %d\n", epoch);
172 printf("** Record Sequence: ");
173 for (i = RECORD_SEQUENCE_START; i <= RECORD_SEQUENCE_END; i++)
174 printf("%02x", rec[i]);
175 reclen = (rec[RECORD_LEN_HI] << 8) | rec[RECORD_LEN_LO];
176 printf("\n** Record Length: %d\n", reclen);
177
178 /* Now look at message */
179 rec += DTLS1_RT_HEADER_LENGTH;
180 rem -= DTLS1_RT_HEADER_LENGTH;
181 if (content == SSL3_RT_HANDSHAKE) {
182 printf("**---- START OF HANDSHAKE MESSAGE FRAGMENT ----\n");
183 if (epoch > 0) {
184 printf("**---- HANDSHAKE MESSAGE FRAGMENT ENCRYPTED ----\n");
185 } else if (rem < DTLS1_HM_HEADER_LENGTH
186 || reclen < DTLS1_HM_HEADER_LENGTH) {
187 printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
188 } else {
189 printf("*** Message Type: %d\n", rec[MSG_TYPE]);
190 msglen = (rec[MSG_LEN_HI] << 16) | (rec[MSG_LEN_MID] << 8)
191 | rec[MSG_LEN_LO];
192 printf("*** Message Length: %d\n", msglen);
193 printf("*** Message sequence: %d\n",
194 (rec[MSG_SEQ_HI] << 8) | rec[MSG_SEQ_LO]);
195 fragoff = (rec[MSG_FRAG_OFF_HI] << 16)
196 | (rec[MSG_FRAG_OFF_MID] << 8)
197 | rec[MSG_FRAG_OFF_LO];
198 printf("*** Message Fragment offset: %d\n", fragoff);
199 fraglen = (rec[MSG_FRAG_LEN_HI] << 16)
200 | (rec[MSG_FRAG_LEN_MID] << 8)
201 | rec[MSG_FRAG_LEN_LO];
202 printf("*** Message Fragment len: %d\n", fraglen);
203 if (fragoff + fraglen > msglen)
204 printf("***---- HANDSHAKE MESSAGE FRAGMENT INVALID ----\n");
205 else if (reclen < fraglen)
206 printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
207 else
208 printf("**---- END OF HANDSHAKE MESSAGE FRAGMENT ----\n");
209 }
210 }
211 if (rem < reclen) {
212 printf("*---- RECORD TRUNCATED ----\n");
213 rem = 0;
214 } else {
215 rec += reclen;
216 rem -= reclen;
217 printf("*---- END OF RECORD ----\n");
218 }
219 }
220 printf("---- END OF PACKET ----\n\n");
221 fflush(stdout);
222 }
223
224 static int tls_dump_read(BIO *bio, char *out, int outl)
225 {
226 int ret;
227 BIO *next = BIO_next(bio);
228
229 ret = BIO_read(next, out, outl);
230 copy_flags(bio);
231
232 if (ret > 0) {
233 dump_data(out, ret);
234 }
235
236 return ret;
237 }
238
239 static int tls_dump_write(BIO *bio, const char *in, int inl)
240 {
241 int ret;
242 BIO *next = BIO_next(bio);
243
244 ret = BIO_write(next, in, inl);
245 copy_flags(bio);
246
247 return ret;
248 }
249
250 static long tls_dump_ctrl(BIO *bio, int cmd, long num, void *ptr)
251 {
252 long ret;
253 BIO *next = BIO_next(bio);
254
255 if (next == NULL)
256 return 0;
257
258 switch (cmd) {
259 case BIO_CTRL_DUP:
260 ret = 0L;
261 break;
262 default:
263 ret = BIO_ctrl(next, cmd, num, ptr);
264 break;
265 }
266 return ret;
267 }
268
269 static int tls_dump_gets(BIO *bio, char *buf, int size)
270 {
271 /* We don't support this - not needed anyway */
272 return -1;
273 }
274
275 static int tls_dump_puts(BIO *bio, const char *str)
276 {
277 return tls_dump_write(bio, str, strlen(str));
278 }
279
280
281 struct mempacket_st {
282 unsigned char *data;
283 int len;
284 unsigned int num;
285 unsigned int type;
286 };
287
288 static void mempacket_free(MEMPACKET *pkt)
289 {
290 if (pkt->data != NULL)
291 OPENSSL_free(pkt->data);
292 OPENSSL_free(pkt);
293 }
294
295 typedef struct mempacket_test_ctx_st {
296 STACK_OF(MEMPACKET) *pkts;
297 unsigned int epoch;
298 unsigned int currrec;
299 unsigned int currpkt;
300 unsigned int lastpkt;
301 unsigned int injected;
302 unsigned int noinject;
303 unsigned int dropepoch;
304 int droprec;
305 int duprec;
306 } MEMPACKET_TEST_CTX;
307
308 static int mempacket_test_new(BIO *bi);
309 static int mempacket_test_free(BIO *a);
310 static int mempacket_test_read(BIO *b, char *out, int outl);
311 static int mempacket_test_write(BIO *b, const char *in, int inl);
312 static long mempacket_test_ctrl(BIO *b, int cmd, long num, void *ptr);
313 static int mempacket_test_gets(BIO *bp, char *buf, int size);
314 static int mempacket_test_puts(BIO *bp, const char *str);
315
316 const BIO_METHOD *bio_s_mempacket_test(void)
317 {
318 if (meth_mem == NULL) {
319 if (!TEST_ptr(meth_mem = BIO_meth_new(BIO_TYPE_MEMPACKET_TEST,
320 "Mem Packet Test"))
321 || !TEST_true(BIO_meth_set_write(meth_mem, mempacket_test_write))
322 || !TEST_true(BIO_meth_set_read(meth_mem, mempacket_test_read))
323 || !TEST_true(BIO_meth_set_puts(meth_mem, mempacket_test_puts))
324 || !TEST_true(BIO_meth_set_gets(meth_mem, mempacket_test_gets))
325 || !TEST_true(BIO_meth_set_ctrl(meth_mem, mempacket_test_ctrl))
326 || !TEST_true(BIO_meth_set_create(meth_mem, mempacket_test_new))
327 || !TEST_true(BIO_meth_set_destroy(meth_mem, mempacket_test_free)))
328 return NULL;
329 }
330 return meth_mem;
331 }
332
333 void bio_s_mempacket_test_free(void)
334 {
335 BIO_meth_free(meth_mem);
336 }
337
338 static int mempacket_test_new(BIO *bio)
339 {
340 MEMPACKET_TEST_CTX *ctx;
341
342 if (!TEST_ptr(ctx = OPENSSL_zalloc(sizeof(*ctx))))
343 return 0;
344 if (!TEST_ptr(ctx->pkts = sk_MEMPACKET_new_null())) {
345 OPENSSL_free(ctx);
346 return 0;
347 }
348 ctx->dropepoch = 0;
349 ctx->droprec = -1;
350 BIO_set_init(bio, 1);
351 BIO_set_data(bio, ctx);
352 return 1;
353 }
354
355 static int mempacket_test_free(BIO *bio)
356 {
357 MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
358
359 sk_MEMPACKET_pop_free(ctx->pkts, mempacket_free);
360 OPENSSL_free(ctx);
361 BIO_set_data(bio, NULL);
362 BIO_set_init(bio, 0);
363 return 1;
364 }
365
366 /* Record Header values */
367 #define EPOCH_HI 3
368 #define EPOCH_LO 4
369 #define RECORD_SEQUENCE 10
370 #define RECORD_LEN_HI 11
371 #define RECORD_LEN_LO 12
372
373 #define STANDARD_PACKET 0
374
375 static int mempacket_test_read(BIO *bio, char *out, int outl)
376 {
377 MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
378 MEMPACKET *thispkt;
379 unsigned char *rec;
380 int rem;
381 unsigned int seq, offset, len, epoch;
382
383 BIO_clear_retry_flags(bio);
384 thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
385 if (thispkt == NULL || thispkt->num != ctx->currpkt) {
386 /* Probably run out of data */
387 BIO_set_retry_read(bio);
388 return -1;
389 }
390 (void)sk_MEMPACKET_shift(ctx->pkts);
391 ctx->currpkt++;
392
393 if (outl > thispkt->len)
394 outl = thispkt->len;
395
396 if (thispkt->type != INJECT_PACKET_IGNORE_REC_SEQ
397 && (ctx->injected || ctx->droprec >= 0)) {
398 /*
399 * Overwrite the record sequence number. We strictly number them in
400 * the order received. Since we are actually a reliable transport
401 * we know that there won't be any re-ordering. We overwrite to deal
402 * with any packets that have been injected
403 */
404 for (rem = thispkt->len, rec = thispkt->data; rem > 0; rem -= len) {
405 if (rem < DTLS1_RT_HEADER_LENGTH)
406 return -1;
407 epoch = (rec[EPOCH_HI] << 8) | rec[EPOCH_LO];
408 if (epoch != ctx->epoch) {
409 ctx->epoch = epoch;
410 ctx->currrec = 0;
411 }
412 seq = ctx->currrec;
413 offset = 0;
414 do {
415 rec[RECORD_SEQUENCE - offset] = seq & 0xFF;
416 seq >>= 8;
417 offset++;
418 } while (seq > 0);
419
420 len = ((rec[RECORD_LEN_HI] << 8) | rec[RECORD_LEN_LO])
421 + DTLS1_RT_HEADER_LENGTH;
422 if (rem < (int)len)
423 return -1;
424 if (ctx->droprec == (int)ctx->currrec && ctx->dropepoch == epoch) {
425 if (rem > (int)len)
426 memmove(rec, rec + len, rem - len);
427 outl -= len;
428 ctx->droprec = -1;
429 if (outl == 0)
430 BIO_set_retry_read(bio);
431 } else {
432 rec += len;
433 }
434
435 ctx->currrec++;
436 }
437 }
438
439 memcpy(out, thispkt->data, outl);
440 mempacket_free(thispkt);
441 return outl;
442 }
443
444 int mempacket_test_inject(BIO *bio, const char *in, int inl, int pktnum,
445 int type)
446 {
447 MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
448 MEMPACKET *thispkt = NULL, *looppkt, *nextpkt, *allpkts[3];
449 int i, duprec;
450 const unsigned char *inu = (const unsigned char *)in;
451 size_t len = ((inu[RECORD_LEN_HI] << 8) | inu[RECORD_LEN_LO])
452 + DTLS1_RT_HEADER_LENGTH;
453
454 if (ctx == NULL)
455 return -1;
456
457 if ((size_t)inl < len)
458 return -1;
459
460 if ((size_t)inl == len)
461 duprec = 0;
462 else
463 duprec = ctx->duprec > 0;
464
465 /* We don't support arbitrary injection when duplicating records */
466 if (duprec && pktnum != -1)
467 return -1;
468
469 /* We only allow injection before we've started writing any data */
470 if (pktnum >= 0) {
471 if (ctx->noinject)
472 return -1;
473 ctx->injected = 1;
474 } else {
475 ctx->noinject = 1;
476 }
477
478 for (i = 0; i < (duprec ? 3 : 1); i++) {
479 if (!TEST_ptr(allpkts[i] = OPENSSL_malloc(sizeof(*thispkt))))
480 goto err;
481 thispkt = allpkts[i];
482
483 if (!TEST_ptr(thispkt->data = OPENSSL_malloc(inl)))
484 goto err;
485 /*
486 * If we are duplicating the packet, we duplicate it three times. The
487 * first two times we drop the first record if there are more than one.
488 * In this way we know that libssl will not be able to make progress
489 * until it receives the last packet, and hence will be forced to
490 * buffer these records.
491 */
492 if (duprec && i != 2) {
493 memcpy(thispkt->data, in + len, inl - len);
494 thispkt->len = inl - len;
495 } else {
496 memcpy(thispkt->data, in, inl);
497 thispkt->len = inl;
498 }
499 thispkt->num = (pktnum >= 0) ? (unsigned int)pktnum : ctx->lastpkt + i;
500 thispkt->type = type;
501 }
502
503 for(i = 0; (looppkt = sk_MEMPACKET_value(ctx->pkts, i)) != NULL; i++) {
504 /* Check if we found the right place to insert this packet */
505 if (looppkt->num > thispkt->num) {
506 if (sk_MEMPACKET_insert(ctx->pkts, thispkt, i) == 0)
507 goto err;
508 /* If we're doing up front injection then we're done */
509 if (pktnum >= 0)
510 return inl;
511 /*
512 * We need to do some accounting on lastpkt. We increment it first,
513 * but it might now equal the value of injected packets, so we need
514 * to skip over those
515 */
516 ctx->lastpkt++;
517 do {
518 i++;
519 nextpkt = sk_MEMPACKET_value(ctx->pkts, i);
520 if (nextpkt != NULL && nextpkt->num == ctx->lastpkt)
521 ctx->lastpkt++;
522 else
523 return inl;
524 } while(1);
525 } else if (looppkt->num == thispkt->num) {
526 if (!ctx->noinject) {
527 /* We injected two packets with the same packet number! */
528 goto err;
529 }
530 ctx->lastpkt++;
531 thispkt->num++;
532 }
533 }
534 /*
535 * We didn't find any packets with a packet number equal to or greater than
536 * this one, so we just add it onto the end
537 */
538 for (i = 0; i < (duprec ? 3 : 1); i++) {
539 thispkt = allpkts[i];
540 if (!sk_MEMPACKET_push(ctx->pkts, thispkt))
541 goto err;
542
543 if (pktnum < 0)
544 ctx->lastpkt++;
545 }
546
547 return inl;
548
549 err:
550 for (i = 0; i < (ctx->duprec > 0 ? 3 : 1); i++)
551 mempacket_free(allpkts[i]);
552 return -1;
553 }
554
555 static int mempacket_test_write(BIO *bio, const char *in, int inl)
556 {
557 return mempacket_test_inject(bio, in, inl, -1, STANDARD_PACKET);
558 }
559
560 static long mempacket_test_ctrl(BIO *bio, int cmd, long num, void *ptr)
561 {
562 long ret = 1;
563 MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
564 MEMPACKET *thispkt;
565
566 switch (cmd) {
567 case BIO_CTRL_EOF:
568 ret = (long)(sk_MEMPACKET_num(ctx->pkts) == 0);
569 break;
570 case BIO_CTRL_GET_CLOSE:
571 ret = BIO_get_shutdown(bio);
572 break;
573 case BIO_CTRL_SET_CLOSE:
574 BIO_set_shutdown(bio, (int)num);
575 break;
576 case BIO_CTRL_WPENDING:
577 ret = 0L;
578 break;
579 case BIO_CTRL_PENDING:
580 thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
581 if (thispkt == NULL)
582 ret = 0;
583 else
584 ret = thispkt->len;
585 break;
586 case BIO_CTRL_FLUSH:
587 ret = 1;
588 break;
589 case MEMPACKET_CTRL_SET_DROP_EPOCH:
590 ctx->dropepoch = (unsigned int)num;
591 break;
592 case MEMPACKET_CTRL_SET_DROP_REC:
593 ctx->droprec = (int)num;
594 break;
595 case MEMPACKET_CTRL_GET_DROP_REC:
596 ret = ctx->droprec;
597 break;
598 case MEMPACKET_CTRL_SET_DUPLICATE_REC:
599 ctx->duprec = (int)num;
600 break;
601 case BIO_CTRL_RESET:
602 case BIO_CTRL_DUP:
603 case BIO_CTRL_PUSH:
604 case BIO_CTRL_POP:
605 default:
606 ret = 0;
607 break;
608 }
609 return ret;
610 }
611
612 static int mempacket_test_gets(BIO *bio, char *buf, int size)
613 {
614 /* We don't support this - not needed anyway */
615 return -1;
616 }
617
618 static int mempacket_test_puts(BIO *bio, const char *str)
619 {
620 return mempacket_test_write(bio, str, strlen(str));
621 }
622
623 int create_ssl_ctx_pair(const SSL_METHOD *sm, const SSL_METHOD *cm,
624 int min_proto_version, int max_proto_version,
625 SSL_CTX **sctx, SSL_CTX **cctx, char *certfile,
626 char *privkeyfile)
627 {
628 SSL_CTX *serverctx = NULL;
629 SSL_CTX *clientctx = NULL;
630
631 if (!TEST_ptr(serverctx = SSL_CTX_new(sm))
632 || (cctx != NULL && !TEST_ptr(clientctx = SSL_CTX_new(cm))))
633 goto err;
634
635 if ((min_proto_version > 0
636 && !TEST_true(SSL_CTX_set_min_proto_version(serverctx,
637 min_proto_version)))
638 || (max_proto_version > 0
639 && !TEST_true(SSL_CTX_set_max_proto_version(serverctx,
640 max_proto_version))))
641 goto err;
642 if (clientctx != NULL
643 && ((min_proto_version > 0
644 && !TEST_true(SSL_CTX_set_min_proto_version(clientctx,
645 min_proto_version)))
646 || (max_proto_version > 0
647 && !TEST_true(SSL_CTX_set_max_proto_version(clientctx,
648 max_proto_version)))))
649 goto err;
650
651 if (certfile != NULL && privkeyfile != NULL) {
652 if (!TEST_int_eq(SSL_CTX_use_certificate_file(serverctx, certfile,
653 SSL_FILETYPE_PEM), 1)
654 || !TEST_int_eq(SSL_CTX_use_PrivateKey_file(serverctx,
655 privkeyfile,
656 SSL_FILETYPE_PEM), 1)
657 || !TEST_int_eq(SSL_CTX_check_private_key(serverctx), 1))
658 goto err;
659 }
660
661 #ifndef OPENSSL_NO_DH
662 SSL_CTX_set_dh_auto(serverctx, 1);
663 #endif
664
665 *sctx = serverctx;
666 if (cctx != NULL)
667 *cctx = clientctx;
668 return 1;
669
670 err:
671 SSL_CTX_free(serverctx);
672 SSL_CTX_free(clientctx);
673 return 0;
674 }
675
676 #define MAXLOOPS 1000000
677
678 #if !defined(OPENSSL_NO_KTLS) && !defined(OPENSSL_NO_SOCK)
679 static int set_nb(int fd)
680 {
681 int flags;
682
683 flags = fcntl(fd,F_GETFL,0);
684 if (flags == -1)
685 return flags;
686 flags = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
687 return flags;
688 }
689
690 int create_test_sockets(int *cfd, int *sfd)
691 {
692 struct sockaddr_in sin;
693 const char *host = "127.0.0.1";
694 int cfd_connected = 0, ret = 0;
695 socklen_t slen = sizeof(sin);
696 int afd = -1;
697
698 *cfd = -1;
699 *sfd = -1;
700
701 memset ((char *) &sin, 0, sizeof(sin));
702 sin.sin_family = AF_INET;
703 sin.sin_addr.s_addr = inet_addr(host);
704
705 afd = socket(AF_INET, SOCK_STREAM, 0);
706 if (afd < 0)
707 return 0;
708
709 if (bind(afd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
710 goto out;
711
712 if (getsockname(afd, (struct sockaddr*)&sin, &slen) < 0)
713 goto out;
714
715 if (listen(afd, 1) < 0)
716 goto out;
717
718 *cfd = socket(AF_INET, SOCK_STREAM, 0);
719 if (*cfd < 0)
720 goto out;
721
722 if (set_nb(afd) == -1)
723 goto out;
724
725 while (*sfd == -1 || !cfd_connected ) {
726 *sfd = accept(afd, NULL, 0);
727 if (*sfd == -1 && errno != EAGAIN)
728 goto out;
729
730 if (!cfd_connected && connect(*cfd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
731 goto out;
732 else
733 cfd_connected = 1;
734 }
735
736 if (set_nb(*cfd) == -1 || set_nb(*sfd) == -1)
737 goto out;
738 ret = 1;
739 goto success;
740
741 out:
742 if (*cfd != -1)
743 close(*cfd);
744 if (*sfd != -1)
745 close(*sfd);
746 success:
747 if (afd != -1)
748 close(afd);
749 return ret;
750 }
751
752 int create_ssl_objects2(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
753 SSL **cssl, int sfd, int cfd)
754 {
755 SSL *serverssl = NULL, *clientssl = NULL;
756 BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;
757
758 if (*sssl != NULL)
759 serverssl = *sssl;
760 else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
761 goto error;
762 if (*cssl != NULL)
763 clientssl = *cssl;
764 else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
765 goto error;
766
767 if (!TEST_ptr(s_to_c_bio = BIO_new_socket(sfd, BIO_NOCLOSE))
768 || !TEST_ptr(c_to_s_bio = BIO_new_socket(cfd, BIO_NOCLOSE)))
769 goto error;
770
771 SSL_set_bio(clientssl, c_to_s_bio, c_to_s_bio);
772 SSL_set_bio(serverssl, s_to_c_bio, s_to_c_bio);
773 *sssl = serverssl;
774 *cssl = clientssl;
775 return 1;
776
777 error:
778 SSL_free(serverssl);
779 SSL_free(clientssl);
780 BIO_free(s_to_c_bio);
781 BIO_free(c_to_s_bio);
782 return 0;
783 }
784 #endif
785
786 /*
787 * NOTE: Transfers control of the BIOs - this function will free them on error
788 */
789 int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
790 SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)
791 {
792 SSL *serverssl = NULL, *clientssl = NULL;
793 BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;
794
795 if (*sssl != NULL)
796 serverssl = *sssl;
797 else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
798 goto error;
799 if (*cssl != NULL)
800 clientssl = *cssl;
801 else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
802 goto error;
803
804 if (SSL_is_dtls(clientssl)) {
805 if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))
806 || !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))
807 goto error;
808 } else {
809 if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))
810 || !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))
811 goto error;
812 }
813
814 if (s_to_c_fbio != NULL
815 && !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))
816 goto error;
817 if (c_to_s_fbio != NULL
818 && !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))
819 goto error;
820
821 /* Set Non-blocking IO behaviour */
822 BIO_set_mem_eof_return(s_to_c_bio, -1);
823 BIO_set_mem_eof_return(c_to_s_bio, -1);
824
825 /* Up ref these as we are passing them to two SSL objects */
826 SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
827 BIO_up_ref(s_to_c_bio);
828 BIO_up_ref(c_to_s_bio);
829 SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
830 *sssl = serverssl;
831 *cssl = clientssl;
832 return 1;
833
834 error:
835 SSL_free(serverssl);
836 SSL_free(clientssl);
837 BIO_free(s_to_c_bio);
838 BIO_free(c_to_s_bio);
839 BIO_free(s_to_c_fbio);
840 BIO_free(c_to_s_fbio);
841
842 return 0;
843 }
844
845 /*
846 * Create an SSL connection, but does not ready any post-handshake
847 * NewSessionTicket messages.
848 * If |read| is set and we're using DTLS then we will attempt to SSL_read on
849 * the connection once we've completed one half of it, to ensure any retransmits
850 * get triggered.
851 */
852 int create_bare_ssl_connection(SSL *serverssl, SSL *clientssl, int want,
853 int read)
854 {
855 int retc = -1, rets = -1, err, abortctr = 0;
856 int clienterr = 0, servererr = 0;
857 int isdtls = SSL_is_dtls(serverssl);
858
859 do {
860 err = SSL_ERROR_WANT_WRITE;
861 while (!clienterr && retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
862 retc = SSL_connect(clientssl);
863 if (retc <= 0)
864 err = SSL_get_error(clientssl, retc);
865 }
866
867 if (!clienterr && retc <= 0 && err != SSL_ERROR_WANT_READ) {
868 TEST_info("SSL_connect() failed %d, %d", retc, err);
869 clienterr = 1;
870 }
871 if (want != SSL_ERROR_NONE && err == want)
872 return 0;
873
874 err = SSL_ERROR_WANT_WRITE;
875 while (!servererr && rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
876 rets = SSL_accept(serverssl);
877 if (rets <= 0)
878 err = SSL_get_error(serverssl, rets);
879 }
880
881 if (!servererr && rets <= 0
882 && err != SSL_ERROR_WANT_READ
883 && err != SSL_ERROR_WANT_X509_LOOKUP) {
884 TEST_info("SSL_accept() failed %d, %d", rets, err);
885 servererr = 1;
886 }
887 if (want != SSL_ERROR_NONE && err == want)
888 return 0;
889 if (clienterr && servererr)
890 return 0;
891 if (isdtls && read) {
892 unsigned char buf[20];
893
894 /* Trigger any retransmits that may be appropriate */
895 if (rets > 0 && retc <= 0) {
896 if (SSL_read(serverssl, buf, sizeof(buf)) > 0) {
897 /* We don't expect this to succeed! */
898 TEST_info("Unexpected SSL_read() success!");
899 return 0;
900 }
901 }
902 if (retc > 0 && rets <= 0) {
903 if (SSL_read(clientssl, buf, sizeof(buf)) > 0) {
904 /* We don't expect this to succeed! */
905 TEST_info("Unexpected SSL_read() success!");
906 return 0;
907 }
908 }
909 }
910 if (++abortctr == MAXLOOPS) {
911 TEST_info("No progress made");
912 return 0;
913 }
914 if (isdtls && abortctr <= 50 && (abortctr % 10) == 0) {
915 /*
916 * It looks like we're just spinning. Pause for a short period to
917 * give the DTLS timer a chance to do something. We only do this for
918 * the first few times to prevent hangs.
919 */
920 ossl_sleep(50);
921 }
922 } while (retc <=0 || rets <= 0);
923
924 return 1;
925 }
926
927 /*
928 * Create an SSL connection including any post handshake NewSessionTicket
929 * messages.
930 */
931 int create_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
932 {
933 int i;
934 unsigned char buf;
935 size_t readbytes;
936
937 if (!create_bare_ssl_connection(serverssl, clientssl, want, 1))
938 return 0;
939
940 /*
941 * We attempt to read some data on the client side which we expect to fail.
942 * This will ensure we have received the NewSessionTicket in TLSv1.3 where
943 * appropriate. We do this twice because there are 2 NewSesionTickets.
944 */
945 for (i = 0; i < 2; i++) {
946 if (SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes) > 0) {
947 if (!TEST_ulong_eq(readbytes, 0))
948 return 0;
949 } else if (!TEST_int_eq(SSL_get_error(clientssl, 0),
950 SSL_ERROR_WANT_READ)) {
951 return 0;
952 }
953 }
954
955 return 1;
956 }
957
958 void shutdown_ssl_connection(SSL *serverssl, SSL *clientssl)
959 {
960 SSL_shutdown(clientssl);
961 SSL_shutdown(serverssl);
962 SSL_free(serverssl);
963 SSL_free(clientssl);
964 }