ssltestlib.c@ 100111

Last change on this file since 100111 was 99366, checked in by vboxsync, 2 years ago
openssl-3.1.0: Applied and adjusted our OpenSSL changes to 3.0.7. bugref:10418
File size: 34.6 KB

Line
1	/*
2	* Copyright 2016-2022 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 "internal/e_os.h" /* for ossl_sleep() etc. */
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	#endif
28
29	static int tls_dump_new(BIO *bi);
30	static int tls_dump_free(BIO *a);
31	static int tls_dump_read(BIO b, char out, int outl);
32	static int tls_dump_write(BIO b, const char in, int inl);
33	static long tls_dump_ctrl(BIO b, int cmd, long num, void ptr);
34	static int tls_dump_gets(BIO bp, char buf, int size);
35	static int tls_dump_puts(BIO bp, const char str);
36
37	/* Choose a sufficiently large type likely to be unused for this custom BIO */
38	#define BIO_TYPE_TLS_DUMP_FILTER (0x80 \| BIO_TYPE_FILTER)
39	#define BIO_TYPE_MEMPACKET_TEST 0x81
40	#define BIO_TYPE_ALWAYS_RETRY 0x82
41
42	static BIO_METHOD *method_tls_dump = NULL;
43	static BIO_METHOD *meth_mem = NULL;
44	static BIO_METHOD *meth_always_retry = NULL;
45
46	/* Note: Not thread safe! */
47	const BIO_METHOD *bio_f_tls_dump_filter(void)
48	{
49	if (method_tls_dump == NULL) {
50	method_tls_dump = BIO_meth_new(BIO_TYPE_TLS_DUMP_FILTER,
51	"TLS dump filter");
52	if ( method_tls_dump == NULL
53	\|\| !BIO_meth_set_write(method_tls_dump, tls_dump_write)
54	\|\| !BIO_meth_set_read(method_tls_dump, tls_dump_read)
55	\|\| !BIO_meth_set_puts(method_tls_dump, tls_dump_puts)
56	\|\| !BIO_meth_set_gets(method_tls_dump, tls_dump_gets)
57	\|\| !BIO_meth_set_ctrl(method_tls_dump, tls_dump_ctrl)
58	\|\| !BIO_meth_set_create(method_tls_dump, tls_dump_new)
59	\|\| !BIO_meth_set_destroy(method_tls_dump, tls_dump_free))
60	return NULL;
61	}
62	return method_tls_dump;
63	}
64
65	void bio_f_tls_dump_filter_free(void)
66	{
67	BIO_meth_free(method_tls_dump);
68	}
69
70	static int tls_dump_new(BIO *bio)
71	{
72	BIO_set_init(bio, 1);
73	return 1;
74	}
75
76	static int tls_dump_free(BIO *bio)
77	{
78	BIO_set_init(bio, 0);
79
80	return 1;
81	}
82
83	static void copy_flags(BIO *bio)
84	{
85	int flags;
86	BIO *next = BIO_next(bio);
87
88	flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY \| BIO_FLAGS_RWS);
89	BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY \| BIO_FLAGS_RWS);
90	BIO_set_flags(bio, flags);
91	}
92
93	#define RECORD_CONTENT_TYPE 0
94	#define RECORD_VERSION_HI 1
95	#define RECORD_VERSION_LO 2
96	#define RECORD_EPOCH_HI 3
97	#define RECORD_EPOCH_LO 4
98	#define RECORD_SEQUENCE_START 5
99	#define RECORD_SEQUENCE_END 10
100	#define RECORD_LEN_HI 11
101	#define RECORD_LEN_LO 12
102
103	#define MSG_TYPE 0
104	#define MSG_LEN_HI 1
105	#define MSG_LEN_MID 2
106	#define MSG_LEN_LO 3
107	#define MSG_SEQ_HI 4
108	#define MSG_SEQ_LO 5
109	#define MSG_FRAG_OFF_HI 6
110	#define MSG_FRAG_OFF_MID 7
111	#define MSG_FRAG_OFF_LO 8
112	#define MSG_FRAG_LEN_HI 9
113	#define MSG_FRAG_LEN_MID 10
114	#define MSG_FRAG_LEN_LO 11
115
116
117	static void dump_data(const char *data, int len)
118	{
119	int rem, i, content, reclen, msglen, fragoff, fraglen, epoch;
120	unsigned char *rec;
121
122	printf("---- START OF PACKET ----\n");
123
124	rem = len;
125	rec = (unsigned char *)data;
126
127	while (rem > 0) {
128	if (rem != len)
129	printf("*\n");
130	printf("*---- START OF RECORD ----\n");
131	if (rem < DTLS1_RT_HEADER_LENGTH) {
132	printf("*---- RECORD TRUNCATED ----\n");
133	break;
134	}
135	content = rec[RECORD_CONTENT_TYPE];
136	printf("** Record Content-type: %d\n", content);
137	printf("** Record Version: %02x%02x\n",
138	rec[RECORD_VERSION_HI], rec[RECORD_VERSION_LO]);
139	epoch = (rec[RECORD_EPOCH_HI] << 8) \| rec[RECORD_EPOCH_LO];
140	printf("** Record Epoch: %d\n", epoch);
141	printf("** Record Sequence: ");
142	for (i = RECORD_SEQUENCE_START; i <= RECORD_SEQUENCE_END; i++)
143	printf("%02x", rec[i]);
144	reclen = (rec[RECORD_LEN_HI] << 8) \| rec[RECORD_LEN_LO];
145	printf("\n** Record Length: %d\n", reclen);
146
147	/* Now look at message */
148	rec += DTLS1_RT_HEADER_LENGTH;
149	rem -= DTLS1_RT_HEADER_LENGTH;
150	if (content == SSL3_RT_HANDSHAKE) {
151	printf("**---- START OF HANDSHAKE MESSAGE FRAGMENT ----\n");
152	if (epoch > 0) {
153	printf("**---- HANDSHAKE MESSAGE FRAGMENT ENCRYPTED ----\n");
154	} else if (rem < DTLS1_HM_HEADER_LENGTH
155	\|\| reclen < DTLS1_HM_HEADER_LENGTH) {
156	printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
157	} else {
158	printf("*** Message Type: %d\n", rec[MSG_TYPE]);
159	msglen = (rec[MSG_LEN_HI] << 16) \| (rec[MSG_LEN_MID] << 8)
160	\| rec[MSG_LEN_LO];
161	printf("*** Message Length: %d\n", msglen);
162	printf("*** Message sequence: %d\n",
163	(rec[MSG_SEQ_HI] << 8) \| rec[MSG_SEQ_LO]);
164	fragoff = (rec[MSG_FRAG_OFF_HI] << 16)
165	\| (rec[MSG_FRAG_OFF_MID] << 8)
166	\| rec[MSG_FRAG_OFF_LO];
167	printf("*** Message Fragment offset: %d\n", fragoff);
168	fraglen = (rec[MSG_FRAG_LEN_HI] << 16)
169	\| (rec[MSG_FRAG_LEN_MID] << 8)
170	\| rec[MSG_FRAG_LEN_LO];
171	printf("*** Message Fragment len: %d\n", fraglen);
172	if (fragoff + fraglen > msglen)
173	printf("***---- HANDSHAKE MESSAGE FRAGMENT INVALID ----\n");
174	else if (reclen < fraglen)
175	printf("**---- HANDSHAKE MESSAGE FRAGMENT TRUNCATED ----\n");
176	else
177	printf("**---- END OF HANDSHAKE MESSAGE FRAGMENT ----\n");
178	}
179	}
180	if (rem < reclen) {
181	printf("*---- RECORD TRUNCATED ----\n");
182	rem = 0;
183	} else {
184	rec += reclen;
185	rem -= reclen;
186	printf("*---- END OF RECORD ----\n");
187	}
188	}
189	printf("---- END OF PACKET ----\n\n");
190	fflush(stdout);
191	}
192
193	static int tls_dump_read(BIO bio, char out, int outl)
194	{
195	int ret;
196	BIO *next = BIO_next(bio);
197
198	ret = BIO_read(next, out, outl);
199	copy_flags(bio);
200
201	if (ret > 0) {
202	dump_data(out, ret);
203	}
204
205	return ret;
206	}
207
208	static int tls_dump_write(BIO bio, const char in, int inl)
209	{
210	int ret;
211	BIO *next = BIO_next(bio);
212
213	ret = BIO_write(next, in, inl);
214	copy_flags(bio);
215
216	return ret;
217	}
218
219	static long tls_dump_ctrl(BIO bio, int cmd, long num, void ptr)
220	{
221	long ret;
222	BIO *next = BIO_next(bio);
223
224	if (next == NULL)
225	return 0;
226
227	switch (cmd) {
228	case BIO_CTRL_DUP:
229	ret = 0L;
230	break;
231	default:
232	ret = BIO_ctrl(next, cmd, num, ptr);
233	break;
234	}
235	return ret;
236	}
237
238	static int tls_dump_gets(BIO bio, char buf, int size)
239	{
240	/* We don't support this - not needed anyway */
241	return -1;
242	}
243
244	static int tls_dump_puts(BIO bio, const char str)
245	{
246	return tls_dump_write(bio, str, strlen(str));
247	}
248
249
250	struct mempacket_st {
251	unsigned char *data;
252	int len;
253	unsigned int num;
254	unsigned int type;
255	};
256
257	static void mempacket_free(MEMPACKET *pkt)
258	{
259	if (pkt->data != NULL)
260	OPENSSL_free(pkt->data);
261	OPENSSL_free(pkt);
262	}
263
264	typedef struct mempacket_test_ctx_st {
265	STACK_OF(MEMPACKET) *pkts;
266	unsigned int epoch;
267	unsigned int currrec;
268	unsigned int currpkt;
269	unsigned int lastpkt;
270	unsigned int injected;
271	unsigned int noinject;
272	unsigned int dropepoch;
273	int droprec;
274	int duprec;
275	} MEMPACKET_TEST_CTX;
276
277	static int mempacket_test_new(BIO *bi);
278	static int mempacket_test_free(BIO *a);
279	static int mempacket_test_read(BIO b, char out, int outl);
280	static int mempacket_test_write(BIO b, const char in, int inl);
281	static long mempacket_test_ctrl(BIO b, int cmd, long num, void ptr);
282	static int mempacket_test_gets(BIO bp, char buf, int size);
283	static int mempacket_test_puts(BIO bp, const char str);
284
285	const BIO_METHOD *bio_s_mempacket_test(void)
286	{
287	if (meth_mem == NULL) {
288	if (!TEST_ptr(meth_mem = BIO_meth_new(BIO_TYPE_MEMPACKET_TEST,
289	"Mem Packet Test"))
290	\|\| !TEST_true(BIO_meth_set_write(meth_mem, mempacket_test_write))
291	\|\| !TEST_true(BIO_meth_set_read(meth_mem, mempacket_test_read))
292	\|\| !TEST_true(BIO_meth_set_puts(meth_mem, mempacket_test_puts))
293	\|\| !TEST_true(BIO_meth_set_gets(meth_mem, mempacket_test_gets))
294	\|\| !TEST_true(BIO_meth_set_ctrl(meth_mem, mempacket_test_ctrl))
295	\|\| !TEST_true(BIO_meth_set_create(meth_mem, mempacket_test_new))
296	\|\| !TEST_true(BIO_meth_set_destroy(meth_mem, mempacket_test_free)))
297	return NULL;
298	}
299	return meth_mem;
300	}
301
302	void bio_s_mempacket_test_free(void)
303	{
304	BIO_meth_free(meth_mem);
305	}
306
307	static int mempacket_test_new(BIO *bio)
308	{
309	MEMPACKET_TEST_CTX *ctx;
310
311	if (!TEST_ptr(ctx = OPENSSL_zalloc(sizeof(*ctx))))
312	return 0;
313	if (!TEST_ptr(ctx->pkts = sk_MEMPACKET_new_null())) {
314	OPENSSL_free(ctx);
315	return 0;
316	}
317	ctx->dropepoch = 0;
318	ctx->droprec = -1;
319	BIO_set_init(bio, 1);
320	BIO_set_data(bio, ctx);
321	return 1;
322	}
323
324	static int mempacket_test_free(BIO *bio)
325	{
326	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
327
328	sk_MEMPACKET_pop_free(ctx->pkts, mempacket_free);
329	OPENSSL_free(ctx);
330	BIO_set_data(bio, NULL);
331	BIO_set_init(bio, 0);
332	return 1;
333	}
334
335	/* Record Header values */
336	#define EPOCH_HI 3
337	#define EPOCH_LO 4
338	#define RECORD_SEQUENCE 10
339	#define RECORD_LEN_HI 11
340	#define RECORD_LEN_LO 12
341
342	#define STANDARD_PACKET 0
343
344	static int mempacket_test_read(BIO bio, char out, int outl)
345	{
346	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
347	MEMPACKET *thispkt;
348	unsigned char *rec;
349	int rem;
350	unsigned int seq, offset, len, epoch;
351
352	BIO_clear_retry_flags(bio);
353	if ((thispkt = sk_MEMPACKET_value(ctx->pkts, 0)) == NULL
354	\|\| thispkt->num != ctx->currpkt) {
355	/* Probably run out of data */
356	BIO_set_retry_read(bio);
357	return -1;
358	}
359	(void)sk_MEMPACKET_shift(ctx->pkts);
360	ctx->currpkt++;
361
362	if (outl > thispkt->len)
363	outl = thispkt->len;
364
365	if (thispkt->type != INJECT_PACKET_IGNORE_REC_SEQ
366	&& (ctx->injected \|\| ctx->droprec >= 0)) {
367	/*
368	* Overwrite the record sequence number. We strictly number them in
369	* the order received. Since we are actually a reliable transport
370	* we know that there won't be any re-ordering. We overwrite to deal
371	* with any packets that have been injected
372	*/
373	for (rem = thispkt->len, rec = thispkt->data; rem > 0; rem -= len) {
374	if (rem < DTLS1_RT_HEADER_LENGTH)
375	return -1;
376	epoch = (rec[EPOCH_HI] << 8) \| rec[EPOCH_LO];
377	if (epoch != ctx->epoch) {
378	ctx->epoch = epoch;
379	ctx->currrec = 0;
380	}
381	seq = ctx->currrec;
382	offset = 0;
383	do {
384	rec[RECORD_SEQUENCE - offset] = seq & 0xFF;
385	seq >>= 8;
386	offset++;
387	} while (seq > 0);
388
389	len = ((rec[RECORD_LEN_HI] << 8) \| rec[RECORD_LEN_LO])
390	+ DTLS1_RT_HEADER_LENGTH;
391	if (rem < (int)len)
392	return -1;
393	if (ctx->droprec == (int)ctx->currrec && ctx->dropepoch == epoch) {
394	if (rem > (int)len)
395	memmove(rec, rec + len, rem - len);
396	outl -= len;
397	ctx->droprec = -1;
398	if (outl == 0)
399	BIO_set_retry_read(bio);
400	} else {
401	rec += len;
402	}
403
404	ctx->currrec++;
405	}
406	}
407
408	memcpy(out, thispkt->data, outl);
409
410	mempacket_free(thispkt);
411	return outl;
412	}
413
414	/*
415	* Look for records from different epochs and swap them around
416	*/
417	int mempacket_swap_epoch(BIO *bio)
418	{
419	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
420	MEMPACKET *thispkt;
421	int rem, len, prevlen = 0, pktnum;
422	unsigned char rec, prevrec = NULL, *tmp;
423	unsigned int epoch;
424	int numpkts = sk_MEMPACKET_num(ctx->pkts);
425
426	if (numpkts <= 0)
427	return 0;
428
429	/*
430	* If there are multiple packets we only look in the last one. This should
431	* always be the one where any epoch change occurs.
432	*/
433	thispkt = sk_MEMPACKET_value(ctx->pkts, numpkts - 1);
434	if (thispkt == NULL)
435	return 0;
436
437	for (rem = thispkt->len, rec = thispkt->data; rem > 0; rem -= len, rec += len) {
438	if (rem < DTLS1_RT_HEADER_LENGTH)
439	return 0;
440	epoch = (rec[EPOCH_HI] << 8) \| rec[EPOCH_LO];
441	len = ((rec[RECORD_LEN_HI] << 8) \| rec[RECORD_LEN_LO])
442	+ DTLS1_RT_HEADER_LENGTH;
443	if (rem < len)
444	return 0;
445
446	/* Assumes the epoch change does not happen on the first record */
447	if (epoch != ctx->epoch) {
448	if (prevrec == NULL)
449	return 0;
450
451	/*
452	* We found 2 records with different epochs. Take a copy of the
453	* earlier record
454	*/
455	tmp = OPENSSL_malloc(prevlen);
456	if (tmp == NULL)
457	return 0;
458
459	memcpy(tmp, prevrec, prevlen);
460	/*
461	* Move everything from this record onwards, including any trailing
462	* records, and overwrite the earlier record
463	*/
464	memmove(prevrec, rec, rem);
465	thispkt->len -= prevlen;
466	pktnum = thispkt->num;
467
468	/*
469	* Create a new packet for the earlier record that we took out and
470	* add it to the end of the packet list.
471	*/
472	thispkt = OPENSSL_malloc(sizeof(*thispkt));
473	if (thispkt == NULL) {
474	OPENSSL_free(tmp);
475	return 0;
476	}
477	thispkt->type = INJECT_PACKET;
478	thispkt->data = tmp;
479	thispkt->len = prevlen;
480	thispkt->num = pktnum + 1;
481	if (sk_MEMPACKET_insert(ctx->pkts, thispkt, numpkts) <= 0) {
482	OPENSSL_free(tmp);
483	OPENSSL_free(thispkt);
484	return 0;
485	}
486
487	return 1;
488	}
489	prevrec = rec;
490	prevlen = len;
491	}
492
493	return 0;
494	}
495
496	/* Take the last and penultimate packets and swap them around */
497	int mempacket_swap_recent(BIO *bio)
498	{
499	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
500	MEMPACKET *thispkt;
501	int numpkts = sk_MEMPACKET_num(ctx->pkts);
502
503	/* We need at least 2 packets to be able to swap them */
504	if (numpkts <= 1)
505	return 0;
506
507	/* Get the penultimate packet */
508	thispkt = sk_MEMPACKET_value(ctx->pkts, numpkts - 2);
509	if (thispkt == NULL)
510	return 0;
511
512	if (sk_MEMPACKET_delete(ctx->pkts, numpkts - 2) != thispkt)
513	return 0;
514
515	/* Re-add it to the end of the list */
516	thispkt->num++;
517	if (sk_MEMPACKET_insert(ctx->pkts, thispkt, numpkts - 1) <= 0)
518	return 0;
519
520	/* We also have to adjust the packet number of the other packet */
521	thispkt = sk_MEMPACKET_value(ctx->pkts, numpkts - 2);
522	if (thispkt == NULL)
523	return 0;
524	thispkt->num--;
525
526	return 1;
527	}
528
529	int mempacket_test_inject(BIO bio, const char in, int inl, int pktnum,
530	int type)
531	{
532	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
533	MEMPACKET thispkt = NULL, looppkt, nextpkt, allpkts[3];
534	int i, duprec;
535	const unsigned char inu = (const unsigned char )in;
536	size_t len = ((inu[RECORD_LEN_HI] << 8) \| inu[RECORD_LEN_LO])
537	+ DTLS1_RT_HEADER_LENGTH;
538
539	if (ctx == NULL)
540	return -1;
541
542	if ((size_t)inl < len)
543	return -1;
544
545	if ((size_t)inl == len)
546	duprec = 0;
547	else
548	duprec = ctx->duprec > 0;
549
550	/* We don't support arbitrary injection when duplicating records */
551	if (duprec && pktnum != -1)
552	return -1;
553
554	/* We only allow injection before we've started writing any data */
555	if (pktnum >= 0) {
556	if (ctx->noinject)
557	return -1;
558	ctx->injected = 1;
559	} else {
560	ctx->noinject = 1;
561	}
562
563	for (i = 0; i < (duprec ? 3 : 1); i++) {
564	if (!TEST_ptr(allpkts[i] = OPENSSL_malloc(sizeof(*thispkt))))
565	goto err;
566	thispkt = allpkts[i];
567
568	if (!TEST_ptr(thispkt->data = OPENSSL_malloc(inl)))
569	goto err;
570	/*
571	* If we are duplicating the packet, we duplicate it three times. The
572	* first two times we drop the first record if there are more than one.
573	* In this way we know that libssl will not be able to make progress
574	* until it receives the last packet, and hence will be forced to
575	* buffer these records.
576	*/
577	if (duprec && i != 2) {
578	memcpy(thispkt->data, in + len, inl - len);
579	thispkt->len = inl - len;
580	} else {
581	memcpy(thispkt->data, in, inl);
582	thispkt->len = inl;
583	}
584	thispkt->num = (pktnum >= 0) ? (unsigned int)pktnum : ctx->lastpkt + i;
585	thispkt->type = type;
586	}
587
588	for (i = 0; i < sk_MEMPACKET_num(ctx->pkts); i++) {
589	if (!TEST_ptr(looppkt = sk_MEMPACKET_value(ctx->pkts, i)))
590	goto err;
591	/* Check if we found the right place to insert this packet */
592	if (looppkt->num > thispkt->num) {
593	if (sk_MEMPACKET_insert(ctx->pkts, thispkt, i) == 0)
594	goto err;
595	/* If we're doing up front injection then we're done */
596	if (pktnum >= 0)
597	return inl;
598	/*
599	* We need to do some accounting on lastpkt. We increment it first,
600	* but it might now equal the value of injected packets, so we need
601	* to skip over those
602	*/
603	ctx->lastpkt++;
604	do {
605	i++;
606	nextpkt = sk_MEMPACKET_value(ctx->pkts, i);
607	if (nextpkt != NULL && nextpkt->num == ctx->lastpkt)
608	ctx->lastpkt++;
609	else
610	return inl;
611	} while(1);
612	} else if (looppkt->num == thispkt->num) {
613	if (!ctx->noinject) {
614	/* We injected two packets with the same packet number! */
615	goto err;
616	}
617	ctx->lastpkt++;
618	thispkt->num++;
619	}
620	}
621	/*
622	* We didn't find any packets with a packet number equal to or greater than
623	* this one, so we just add it onto the end
624	*/
625	for (i = 0; i < (duprec ? 3 : 1); i++) {
626	thispkt = allpkts[i];
627	if (!sk_MEMPACKET_push(ctx->pkts, thispkt))
628	goto err;
629
630	if (pktnum < 0)
631	ctx->lastpkt++;
632	}
633
634	return inl;
635
636	err:
637	for (i = 0; i < (ctx->duprec > 0 ? 3 : 1); i++)
638	mempacket_free(allpkts[i]);
639	return -1;
640	}
641
642	static int mempacket_test_write(BIO bio, const char in, int inl)
643	{
644	return mempacket_test_inject(bio, in, inl, -1, STANDARD_PACKET);
645	}
646
647	static long mempacket_test_ctrl(BIO bio, int cmd, long num, void ptr)
648	{
649	long ret = 1;
650	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
651	MEMPACKET *thispkt;
652
653	switch (cmd) {
654	case BIO_CTRL_EOF:
655	ret = (long)(sk_MEMPACKET_num(ctx->pkts) == 0);
656	break;
657	case BIO_CTRL_GET_CLOSE:
658	ret = BIO_get_shutdown(bio);
659	break;
660	case BIO_CTRL_SET_CLOSE:
661	BIO_set_shutdown(bio, (int)num);
662	break;
663	case BIO_CTRL_WPENDING:
664	ret = 0L;
665	break;
666	case BIO_CTRL_PENDING:
667	thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
668	if (thispkt == NULL)
669	ret = 0;
670	else
671	ret = thispkt->len;
672	break;
673	case BIO_CTRL_FLUSH:
674	ret = 1;
675	break;
676	case MEMPACKET_CTRL_SET_DROP_EPOCH:
677	ctx->dropepoch = (unsigned int)num;
678	break;
679	case MEMPACKET_CTRL_SET_DROP_REC:
680	ctx->droprec = (int)num;
681	break;
682	case MEMPACKET_CTRL_GET_DROP_REC:
683	ret = ctx->droprec;
684	break;
685	case MEMPACKET_CTRL_SET_DUPLICATE_REC:
686	ctx->duprec = (int)num;
687	break;
688	case BIO_CTRL_RESET:
689	case BIO_CTRL_DUP:
690	case BIO_CTRL_PUSH:
691	case BIO_CTRL_POP:
692	default:
693	ret = 0;
694	break;
695	}
696	return ret;
697	}
698
699	static int mempacket_test_gets(BIO bio, char buf, int size)
700	{
701	/* We don't support this - not needed anyway */
702	return -1;
703	}
704
705	static int mempacket_test_puts(BIO bio, const char str)
706	{
707	return mempacket_test_write(bio, str, strlen(str));
708	}
709
710	static int always_retry_new(BIO *bi);
711	static int always_retry_free(BIO *a);
712	static int always_retry_read(BIO b, char out, int outl);
713	static int always_retry_write(BIO b, const char in, int inl);
714	static long always_retry_ctrl(BIO b, int cmd, long num, void ptr);
715	static int always_retry_gets(BIO bp, char buf, int size);
716	static int always_retry_puts(BIO bp, const char str);
717
718	const BIO_METHOD *bio_s_always_retry(void)
719	{
720	if (meth_always_retry == NULL) {
721	if (!TEST_ptr(meth_always_retry = BIO_meth_new(BIO_TYPE_ALWAYS_RETRY,
722	"Always Retry"))
723	\|\| !TEST_true(BIO_meth_set_write(meth_always_retry,
724	always_retry_write))
725	\|\| !TEST_true(BIO_meth_set_read(meth_always_retry,
726	always_retry_read))
727	\|\| !TEST_true(BIO_meth_set_puts(meth_always_retry,
728	always_retry_puts))
729	\|\| !TEST_true(BIO_meth_set_gets(meth_always_retry,
730	always_retry_gets))
731	\|\| !TEST_true(BIO_meth_set_ctrl(meth_always_retry,
732	always_retry_ctrl))
733	\|\| !TEST_true(BIO_meth_set_create(meth_always_retry,
734	always_retry_new))
735	\|\| !TEST_true(BIO_meth_set_destroy(meth_always_retry,
736	always_retry_free)))
737	return NULL;
738	}
739	return meth_always_retry;
740	}
741
742	void bio_s_always_retry_free(void)
743	{
744	BIO_meth_free(meth_always_retry);
745	}
746
747	static int always_retry_new(BIO *bio)
748	{
749	BIO_set_init(bio, 1);
750	return 1;
751	}
752
753	static int always_retry_free(BIO *bio)
754	{
755	BIO_set_data(bio, NULL);
756	BIO_set_init(bio, 0);
757	return 1;
758	}
759
760	static int always_retry_read(BIO bio, char out, int outl)
761	{
762	BIO_set_retry_read(bio);
763	return -1;
764	}
765
766	static int always_retry_write(BIO bio, const char in, int inl)
767	{
768	BIO_set_retry_write(bio);
769	return -1;
770	}
771
772	static long always_retry_ctrl(BIO bio, int cmd, long num, void ptr)
773	{
774	long ret = 1;
775
776	switch (cmd) {
777	case BIO_CTRL_FLUSH:
778	BIO_set_retry_write(bio);
779	/* fall through */
780	case BIO_CTRL_EOF:
781	case BIO_CTRL_RESET:
782	case BIO_CTRL_DUP:
783	case BIO_CTRL_PUSH:
784	case BIO_CTRL_POP:
785	default:
786	ret = 0;
787	break;
788	}
789	return ret;
790	}
791
792	static int always_retry_gets(BIO bio, char buf, int size)
793	{
794	BIO_set_retry_read(bio);
795	return -1;
796	}
797
798	static int always_retry_puts(BIO bio, const char str)
799	{
800	BIO_set_retry_write(bio);
801	return -1;
802	}
803
804	int create_ssl_ctx_pair(OSSL_LIB_CTX libctx, const SSL_METHOD sm,
805	const SSL_METHOD *cm, int min_proto_version,
806	int max_proto_version, SSL_CTX sctx, SSL_CTX cctx,
807	char certfile, char privkeyfile)
808	{
809	SSL_CTX *serverctx = NULL;
810	SSL_CTX *clientctx = NULL;
811
812	if (sctx != NULL) {
813	if (*sctx != NULL)
814	serverctx = *sctx;
815	else if (!TEST_ptr(serverctx = SSL_CTX_new_ex(libctx, NULL, sm))
816	\|\| !TEST_true(SSL_CTX_set_options(serverctx,
817	SSL_OP_ALLOW_CLIENT_RENEGOTIATION)))
818	goto err;
819	}
820
821	if (cctx != NULL) {
822	if (*cctx != NULL)
823	clientctx = *cctx;
824	else if (!TEST_ptr(clientctx = SSL_CTX_new_ex(libctx, NULL, cm)))
825	goto err;
826	}
827
828	#if !defined(OPENSSL_NO_TLS1_3) \
829	&& defined(OPENSSL_NO_EC) \
830	&& defined(OPENSSL_NO_DH)
831	/*
832	* There are no usable built-in TLSv1.3 groups if ec and dh are both
833	* disabled
834	*/
835	if (max_proto_version == 0
836	&& (sm == TLS_server_method() \|\| cm == TLS_client_method()))
837	max_proto_version = TLS1_2_VERSION;
838	#endif
839
840	if (serverctx != NULL
841	&& ((min_proto_version > 0
842	&& !TEST_true(SSL_CTX_set_min_proto_version(serverctx,
843	min_proto_version)))
844	\|\| (max_proto_version > 0
845	&& !TEST_true(SSL_CTX_set_max_proto_version(serverctx,
846	max_proto_version)))))
847	goto err;
848	if (clientctx != NULL
849	&& ((min_proto_version > 0
850	&& !TEST_true(SSL_CTX_set_min_proto_version(clientctx,
851	min_proto_version)))
852	\|\| (max_proto_version > 0
853	&& !TEST_true(SSL_CTX_set_max_proto_version(clientctx,
854	max_proto_version)))))
855	goto err;
856
857	if (serverctx != NULL && certfile != NULL && privkeyfile != NULL) {
858	if (!TEST_int_eq(SSL_CTX_use_certificate_file(serverctx, certfile,
859	SSL_FILETYPE_PEM), 1)
860	\|\| !TEST_int_eq(SSL_CTX_use_PrivateKey_file(serverctx,
861	privkeyfile,
862	SSL_FILETYPE_PEM), 1)
863	\|\| !TEST_int_eq(SSL_CTX_check_private_key(serverctx), 1))
864	goto err;
865	}
866
867	if (sctx != NULL)
868	*sctx = serverctx;
869	if (cctx != NULL)
870	*cctx = clientctx;
871	return 1;
872
873	err:
874	if (sctx != NULL && *sctx == NULL)
875	SSL_CTX_free(serverctx);
876	if (cctx != NULL && *cctx == NULL)
877	SSL_CTX_free(clientctx);
878	return 0;
879	}
880
881	#define MAXLOOPS 1000000
882
883	#if !defined(OPENSSL_NO_KTLS) && !defined(OPENSSL_NO_SOCK)
884	static int set_nb(int fd)
885	{
886	int flags;
887
888	flags = fcntl(fd,F_GETFL,0);
889	if (flags == -1)
890	return flags;
891	flags = fcntl(fd, F_SETFL, flags \| O_NONBLOCK);
892	return flags;
893	}
894
895	int create_test_sockets(int cfdp, int sfdp)
896	{
897	struct sockaddr_in sin;
898	const char *host = "127.0.0.1";
899	int cfd_connected = 0, ret = 0;
900	socklen_t slen = sizeof(sin);
901	int afd = -1, cfd = -1, sfd = -1;
902
903	memset ((char *) &sin, 0, sizeof(sin));
904	sin.sin_family = AF_INET;
905	sin.sin_addr.s_addr = inet_addr(host);
906
907	afd = socket(AF_INET, SOCK_STREAM, 0);
908	if (afd < 0)
909	return 0;
910
911	if (bind(afd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
912	goto out;
913
914	if (getsockname(afd, (struct sockaddr*)&sin, &slen) < 0)
915	goto out;
916
917	if (listen(afd, 1) < 0)
918	goto out;
919
920	cfd = socket(AF_INET, SOCK_STREAM, 0);
921	if (cfd < 0)
922	goto out;
923
924	if (set_nb(afd) == -1)
925	goto out;
926
927	while (sfd == -1 \|\| !cfd_connected ) {
928	sfd = accept(afd, NULL, 0);
929	if (sfd == -1 && errno != EAGAIN)
930	goto out;
931
932	if (!cfd_connected && connect(cfd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
933	goto out;
934	else
935	cfd_connected = 1;
936	}
937
938	if (set_nb(cfd) == -1 \|\| set_nb(sfd) == -1)
939	goto out;
940	ret = 1;
941	*cfdp = cfd;
942	*sfdp = sfd;
943	goto success;
944
945	out:
946	if (cfd != -1)
947	close(cfd);
948	if (sfd != -1)
949	close(sfd);
950	success:
951	if (afd != -1)
952	close(afd);
953	return ret;
954	}
955
956	int create_ssl_objects2(SSL_CTX serverctx, SSL_CTX clientctx, SSL **sssl,
957	SSL **cssl, int sfd, int cfd)
958	{
959	SSL serverssl = NULL, clientssl = NULL;
960	BIO s_to_c_bio = NULL, c_to_s_bio = NULL;
961
962	if (*sssl != NULL)
963	serverssl = *sssl;
964	else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
965	goto error;
966	if (*cssl != NULL)
967	clientssl = *cssl;
968	else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
969	goto error;
970
971	if (!TEST_ptr(s_to_c_bio = BIO_new_socket(sfd, BIO_NOCLOSE))
972	\|\| !TEST_ptr(c_to_s_bio = BIO_new_socket(cfd, BIO_NOCLOSE)))
973	goto error;
974
975	SSL_set_bio(clientssl, c_to_s_bio, c_to_s_bio);
976	SSL_set_bio(serverssl, s_to_c_bio, s_to_c_bio);
977	*sssl = serverssl;
978	*cssl = clientssl;
979	return 1;
980
981	error:
982	SSL_free(serverssl);
983	SSL_free(clientssl);
984	BIO_free(s_to_c_bio);
985	BIO_free(c_to_s_bio);
986	return 0;
987	}
988	#endif
989
990	/*
991	* NOTE: Transfers control of the BIOs - this function will free them on error
992	*/
993	int create_ssl_objects(SSL_CTX serverctx, SSL_CTX clientctx, SSL **sssl,
994	SSL *cssl, BIO s_to_c_fbio, BIO *c_to_s_fbio)
995	{
996	SSL serverssl = NULL, clientssl = NULL;
997	BIO s_to_c_bio = NULL, c_to_s_bio = NULL;
998
999	if (*sssl != NULL)
1000	serverssl = *sssl;
1001	else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
1002	goto error;
1003	if (*cssl != NULL)
1004	clientssl = *cssl;
1005	else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
1006	goto error;
1007
1008	if (SSL_is_dtls(clientssl)) {
1009	if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))
1010	\|\| !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))
1011	goto error;
1012	} else {
1013	if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))
1014	\|\| !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))
1015	goto error;
1016	}
1017
1018	if (s_to_c_fbio != NULL
1019	&& !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))
1020	goto error;
1021	if (c_to_s_fbio != NULL
1022	&& !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))
1023	goto error;
1024
1025	/* Set Non-blocking IO behaviour */
1026	BIO_set_mem_eof_return(s_to_c_bio, -1);
1027	BIO_set_mem_eof_return(c_to_s_bio, -1);
1028
1029	/* Up ref these as we are passing them to two SSL objects */
1030	SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
1031	BIO_up_ref(s_to_c_bio);
1032	BIO_up_ref(c_to_s_bio);
1033	SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
1034	*sssl = serverssl;
1035	*cssl = clientssl;
1036	return 1;
1037
1038	error:
1039	SSL_free(serverssl);
1040	SSL_free(clientssl);
1041	BIO_free(s_to_c_bio);
1042	BIO_free(c_to_s_bio);
1043	BIO_free(s_to_c_fbio);
1044	BIO_free(c_to_s_fbio);
1045
1046	return 0;
1047	}
1048
1049	/*
1050	* Create an SSL connection, but does not read any post-handshake
1051	* NewSessionTicket messages.
1052	* If \|read\| is set and we're using DTLS then we will attempt to SSL_read on
1053	* the connection once we've completed one half of it, to ensure any retransmits
1054	* get triggered.
1055	* We stop the connection attempt (and return a failure value) if either peer
1056	* has SSL_get_error() return the value in the \|want\| parameter. The connection
1057	* attempt could be restarted by a subsequent call to this function.
1058	*/
1059	int create_bare_ssl_connection(SSL serverssl, SSL clientssl, int want,
1060	int read)
1061	{
1062	int retc = -1, rets = -1, err, abortctr = 0;
1063	int clienterr = 0, servererr = 0;
1064	int isdtls = SSL_is_dtls(serverssl);
1065
1066	do {
1067	err = SSL_ERROR_WANT_WRITE;
1068	while (!clienterr && retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
1069	retc = SSL_connect(clientssl);
1070	if (retc <= 0)
1071	err = SSL_get_error(clientssl, retc);
1072	}
1073
1074	if (!clienterr && retc <= 0 && err != SSL_ERROR_WANT_READ) {
1075	TEST_info("SSL_connect() failed %d, %d", retc, err);
1076	if (want != SSL_ERROR_SSL)
1077	TEST_openssl_errors();
1078	clienterr = 1;
1079	}
1080	if (want != SSL_ERROR_NONE && err == want)
1081	return 0;
1082
1083	err = SSL_ERROR_WANT_WRITE;
1084	while (!servererr && rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
1085	rets = SSL_accept(serverssl);
1086	if (rets <= 0)
1087	err = SSL_get_error(serverssl, rets);
1088	}
1089
1090	if (!servererr && rets <= 0
1091	&& err != SSL_ERROR_WANT_READ
1092	&& err != SSL_ERROR_WANT_X509_LOOKUP) {
1093	TEST_info("SSL_accept() failed %d, %d", rets, err);
1094	if (want != SSL_ERROR_SSL)
1095	TEST_openssl_errors();
1096	servererr = 1;
1097	}
1098	if (want != SSL_ERROR_NONE && err == want)
1099	return 0;
1100	if (clienterr && servererr)
1101	return 0;
1102	if (isdtls && read) {
1103	unsigned char buf[20];
1104
1105	/* Trigger any retransmits that may be appropriate */
1106	if (rets > 0 && retc <= 0) {
1107	if (SSL_read(serverssl, buf, sizeof(buf)) > 0) {
1108	/* We don't expect this to succeed! */
1109	TEST_info("Unexpected SSL_read() success!");
1110	return 0;
1111	}
1112	}
1113	if (retc > 0 && rets <= 0) {
1114	if (SSL_read(clientssl, buf, sizeof(buf)) > 0) {
1115	/* We don't expect this to succeed! */
1116	TEST_info("Unexpected SSL_read() success!");
1117	return 0;
1118	}
1119	}
1120	}
1121	if (++abortctr == MAXLOOPS) {
1122	TEST_info("No progress made");
1123	return 0;
1124	}
1125	if (isdtls && abortctr <= 50 && (abortctr % 10) == 0) {
1126	/*
1127	* It looks like we're just spinning. Pause for a short period to
1128	* give the DTLS timer a chance to do something. We only do this for
1129	* the first few times to prevent hangs.
1130	*/
1131	ossl_sleep(50);
1132	}
1133	} while (retc <=0 \|\| rets <= 0);
1134
1135	return 1;
1136	}
1137
1138	/*
1139	* Create an SSL connection including any post handshake NewSessionTicket
1140	* messages.
1141	*/
1142	int create_ssl_connection(SSL serverssl, SSL clientssl, int want)
1143	{
1144	int i;
1145	unsigned char buf;
1146	size_t readbytes;
1147
1148	if (!create_bare_ssl_connection(serverssl, clientssl, want, 1))
1149	return 0;
1150
1151	/*
1152	* We attempt to read some data on the client side which we expect to fail.
1153	* This will ensure we have received the NewSessionTicket in TLSv1.3 where
1154	* appropriate. We do this twice because there are 2 NewSessionTickets.
1155	*/
1156	for (i = 0; i < 2; i++) {
1157	if (SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes) > 0) {
1158	if (!TEST_ulong_eq(readbytes, 0))
1159	return 0;
1160	} else if (!TEST_int_eq(SSL_get_error(clientssl, 0),
1161	SSL_ERROR_WANT_READ)) {
1162	return 0;
1163	}
1164	}
1165
1166	return 1;
1167	}
1168
1169	void shutdown_ssl_connection(SSL serverssl, SSL clientssl)
1170	{
1171	SSL_shutdown(clientssl);
1172	SSL_shutdown(serverssl);
1173	SSL_free(serverssl);
1174	SSL_free(clientssl);
1175	}

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source: vbox/trunk/src/libs/openssl-3.1.0/test/helpers/ssltestlib.c@ 100111

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