ssltestlib.c@ 100715

Last change on this file since 100715 was 100487, checked in by vboxsync, 23 months ago
openssl-3.0.9: Applied and adjusted our OpenSSL changes we made to 3.0.7. bugref:10484
File size: 34.6 KB

Line
1	/*
2	* Copyright 2016-2023 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" /* 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	mempacket_free(thispkt);
410	return outl;
411	}
412
413	/*
414	* Look for records from different epochs in the last datagram and swap them
415	* 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	/* Move packet from position s to position d in the list (d < s) */
497	int mempacket_move_packet(BIO *bio, int d, int s)
498	{
499	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
500	MEMPACKET *thispkt;
501	int numpkts = sk_MEMPACKET_num(ctx->pkts);
502	int i;
503
504	if (d >= s)
505	return 0;
506
507	/* We need at least s + 1 packets to be able to swap them */
508	if (numpkts <= s)
509	return 0;
510
511	/* Get the packet at position s */
512	thispkt = sk_MEMPACKET_value(ctx->pkts, s);
513	if (thispkt == NULL)
514	return 0;
515
516	/* Remove and re-add it */
517	if (sk_MEMPACKET_delete(ctx->pkts, s) != thispkt)
518	return 0;
519
520	thispkt->num -= (s - d);
521	if (sk_MEMPACKET_insert(ctx->pkts, thispkt, d) <= 0)
522	return 0;
523
524	/* Increment the packet numbers for moved packets */
525	for (i = d + 1; i <= s; i++) {
526	thispkt = sk_MEMPACKET_value(ctx->pkts, i);
527	thispkt->num++;
528	}
529	return 1;
530	}
531
532	int mempacket_test_inject(BIO bio, const char in, int inl, int pktnum,
533	int type)
534	{
535	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
536	MEMPACKET thispkt = NULL, looppkt, nextpkt, allpkts[3];
537	int i, duprec;
538	const unsigned char inu = (const unsigned char )in;
539	size_t len = ((inu[RECORD_LEN_HI] << 8) \| inu[RECORD_LEN_LO])
540	+ DTLS1_RT_HEADER_LENGTH;
541
542	if (ctx == NULL)
543	return -1;
544
545	if ((size_t)inl < len)
546	return -1;
547
548	if ((size_t)inl == len)
549	duprec = 0;
550	else
551	duprec = ctx->duprec > 0;
552
553	/* We don't support arbitrary injection when duplicating records */
554	if (duprec && pktnum != -1)
555	return -1;
556
557	/* We only allow injection before we've started writing any data */
558	if (pktnum >= 0) {
559	if (ctx->noinject)
560	return -1;
561	ctx->injected = 1;
562	} else {
563	ctx->noinject = 1;
564	}
565
566	for (i = 0; i < (duprec ? 3 : 1); i++) {
567	if (!TEST_ptr(allpkts[i] = OPENSSL_malloc(sizeof(*thispkt))))
568	goto err;
569	thispkt = allpkts[i];
570
571	if (!TEST_ptr(thispkt->data = OPENSSL_malloc(inl)))
572	goto err;
573	/*
574	* If we are duplicating the packet, we duplicate it three times. The
575	* first two times we drop the first record if there are more than one.
576	* In this way we know that libssl will not be able to make progress
577	* until it receives the last packet, and hence will be forced to
578	* buffer these records.
579	*/
580	if (duprec && i != 2) {
581	memcpy(thispkt->data, in + len, inl - len);
582	thispkt->len = inl - len;
583	} else {
584	memcpy(thispkt->data, in, inl);
585	thispkt->len = inl;
586	}
587	thispkt->num = (pktnum >= 0) ? (unsigned int)pktnum : ctx->lastpkt + i;
588	thispkt->type = type;
589	}
590
591	for (i = 0; i < sk_MEMPACKET_num(ctx->pkts); i++) {
592	if (!TEST_ptr(looppkt = sk_MEMPACKET_value(ctx->pkts, i)))
593	goto err;
594	/* Check if we found the right place to insert this packet */
595	if (looppkt->num > thispkt->num) {
596	if (sk_MEMPACKET_insert(ctx->pkts, thispkt, i) == 0)
597	goto err;
598	/* If we're doing up front injection then we're done */
599	if (pktnum >= 0)
600	return inl;
601	/*
602	* We need to do some accounting on lastpkt. We increment it first,
603	* but it might now equal the value of injected packets, so we need
604	* to skip over those
605	*/
606	ctx->lastpkt++;
607	do {
608	i++;
609	nextpkt = sk_MEMPACKET_value(ctx->pkts, i);
610	if (nextpkt != NULL && nextpkt->num == ctx->lastpkt)
611	ctx->lastpkt++;
612	else
613	return inl;
614	} while(1);
615	} else if (looppkt->num == thispkt->num) {
616	if (!ctx->noinject) {
617	/* We injected two packets with the same packet number! */
618	goto err;
619	}
620	ctx->lastpkt++;
621	thispkt->num++;
622	}
623	}
624	/*
625	* We didn't find any packets with a packet number equal to or greater than
626	* this one, so we just add it onto the end
627	*/
628	for (i = 0; i < (duprec ? 3 : 1); i++) {
629	thispkt = allpkts[i];
630	if (!sk_MEMPACKET_push(ctx->pkts, thispkt))
631	goto err;
632
633	if (pktnum < 0)
634	ctx->lastpkt++;
635	}
636
637	return inl;
638
639	err:
640	for (i = 0; i < (ctx->duprec > 0 ? 3 : 1); i++)
641	mempacket_free(allpkts[i]);
642	return -1;
643	}
644
645	static int mempacket_test_write(BIO bio, const char in, int inl)
646	{
647	return mempacket_test_inject(bio, in, inl, -1, STANDARD_PACKET);
648	}
649
650	static long mempacket_test_ctrl(BIO bio, int cmd, long num, void ptr)
651	{
652	long ret = 1;
653	MEMPACKET_TEST_CTX *ctx = BIO_get_data(bio);
654	MEMPACKET *thispkt;
655
656	switch (cmd) {
657	case BIO_CTRL_EOF:
658	ret = (long)(sk_MEMPACKET_num(ctx->pkts) == 0);
659	break;
660	case BIO_CTRL_GET_CLOSE:
661	ret = BIO_get_shutdown(bio);
662	break;
663	case BIO_CTRL_SET_CLOSE:
664	BIO_set_shutdown(bio, (int)num);
665	break;
666	case BIO_CTRL_WPENDING:
667	ret = 0L;
668	break;
669	case BIO_CTRL_PENDING:
670	thispkt = sk_MEMPACKET_value(ctx->pkts, 0);
671	if (thispkt == NULL)
672	ret = 0;
673	else
674	ret = thispkt->len;
675	break;
676	case BIO_CTRL_FLUSH:
677	ret = 1;
678	break;
679	case MEMPACKET_CTRL_SET_DROP_EPOCH:
680	ctx->dropepoch = (unsigned int)num;
681	break;
682	case MEMPACKET_CTRL_SET_DROP_REC:
683	ctx->droprec = (int)num;
684	break;
685	case MEMPACKET_CTRL_GET_DROP_REC:
686	ret = ctx->droprec;
687	break;
688	case MEMPACKET_CTRL_SET_DUPLICATE_REC:
689	ctx->duprec = (int)num;
690	break;
691	case BIO_CTRL_RESET:
692	case BIO_CTRL_DUP:
693	case BIO_CTRL_PUSH:
694	case BIO_CTRL_POP:
695	default:
696	ret = 0;
697	break;
698	}
699	return ret;
700	}
701
702	static int mempacket_test_gets(BIO bio, char buf, int size)
703	{
704	/* We don't support this - not needed anyway */
705	return -1;
706	}
707
708	static int mempacket_test_puts(BIO bio, const char str)
709	{
710	return mempacket_test_write(bio, str, strlen(str));
711	}
712
713	static int always_retry_new(BIO *bi);
714	static int always_retry_free(BIO *a);
715	static int always_retry_read(BIO b, char out, int outl);
716	static int always_retry_write(BIO b, const char in, int inl);
717	static long always_retry_ctrl(BIO b, int cmd, long num, void ptr);
718	static int always_retry_gets(BIO bp, char buf, int size);
719	static int always_retry_puts(BIO bp, const char str);
720
721	const BIO_METHOD *bio_s_always_retry(void)
722	{
723	if (meth_always_retry == NULL) {
724	if (!TEST_ptr(meth_always_retry = BIO_meth_new(BIO_TYPE_ALWAYS_RETRY,
725	"Always Retry"))
726	\|\| !TEST_true(BIO_meth_set_write(meth_always_retry,
727	always_retry_write))
728	\|\| !TEST_true(BIO_meth_set_read(meth_always_retry,
729	always_retry_read))
730	\|\| !TEST_true(BIO_meth_set_puts(meth_always_retry,
731	always_retry_puts))
732	\|\| !TEST_true(BIO_meth_set_gets(meth_always_retry,
733	always_retry_gets))
734	\|\| !TEST_true(BIO_meth_set_ctrl(meth_always_retry,
735	always_retry_ctrl))
736	\|\| !TEST_true(BIO_meth_set_create(meth_always_retry,
737	always_retry_new))
738	\|\| !TEST_true(BIO_meth_set_destroy(meth_always_retry,
739	always_retry_free)))
740	return NULL;
741	}
742	return meth_always_retry;
743	}
744
745	void bio_s_always_retry_free(void)
746	{
747	BIO_meth_free(meth_always_retry);
748	}
749
750	static int always_retry_new(BIO *bio)
751	{
752	BIO_set_init(bio, 1);
753	return 1;
754	}
755
756	static int always_retry_free(BIO *bio)
757	{
758	BIO_set_data(bio, NULL);
759	BIO_set_init(bio, 0);
760	return 1;
761	}
762
763	static int always_retry_read(BIO bio, char out, int outl)
764	{
765	BIO_set_retry_read(bio);
766	return -1;
767	}
768
769	static int always_retry_write(BIO bio, const char in, int inl)
770	{
771	BIO_set_retry_write(bio);
772	return -1;
773	}
774
775	static long always_retry_ctrl(BIO bio, int cmd, long num, void ptr)
776	{
777	long ret = 1;
778
779	switch (cmd) {
780	case BIO_CTRL_FLUSH:
781	BIO_set_retry_write(bio);
782	/* fall through */
783	case BIO_CTRL_EOF:
784	case BIO_CTRL_RESET:
785	case BIO_CTRL_DUP:
786	case BIO_CTRL_PUSH:
787	case BIO_CTRL_POP:
788	default:
789	ret = 0;
790	break;
791	}
792	return ret;
793	}
794
795	static int always_retry_gets(BIO bio, char buf, int size)
796	{
797	BIO_set_retry_read(bio);
798	return -1;
799	}
800
801	static int always_retry_puts(BIO bio, const char str)
802	{
803	BIO_set_retry_write(bio);
804	return -1;
805	}
806
807	int create_ssl_ctx_pair(OSSL_LIB_CTX libctx, const SSL_METHOD sm,
808	const SSL_METHOD *cm, int min_proto_version,
809	int max_proto_version, SSL_CTX sctx, SSL_CTX cctx,
810	char certfile, char privkeyfile)
811	{
812	SSL_CTX *serverctx = NULL;
813	SSL_CTX *clientctx = NULL;
814
815	if (sctx != NULL) {
816	if (*sctx != NULL)
817	serverctx = *sctx;
818	else if (!TEST_ptr(serverctx = SSL_CTX_new_ex(libctx, NULL, sm))
819	\|\| !TEST_true(SSL_CTX_set_options(serverctx,
820	SSL_OP_ALLOW_CLIENT_RENEGOTIATION)))
821	goto err;
822	}
823
824	if (cctx != NULL) {
825	if (*cctx != NULL)
826	clientctx = *cctx;
827	else if (!TEST_ptr(clientctx = SSL_CTX_new_ex(libctx, NULL, cm)))
828	goto err;
829	}
830
831	#if !defined(OPENSSL_NO_TLS1_3) \
832	&& defined(OPENSSL_NO_EC) \
833	&& defined(OPENSSL_NO_DH)
834	/*
835	* There are no usable built-in TLSv1.3 groups if ec and dh are both
836	* disabled
837	*/
838	if (max_proto_version == 0
839	&& (sm == TLS_server_method() \|\| cm == TLS_client_method()))
840	max_proto_version = TLS1_2_VERSION;
841	#endif
842
843	if (serverctx != NULL
844	&& ((min_proto_version > 0
845	&& !TEST_true(SSL_CTX_set_min_proto_version(serverctx,
846	min_proto_version)))
847	\|\| (max_proto_version > 0
848	&& !TEST_true(SSL_CTX_set_max_proto_version(serverctx,
849	max_proto_version)))))
850	goto err;
851	if (clientctx != NULL
852	&& ((min_proto_version > 0
853	&& !TEST_true(SSL_CTX_set_min_proto_version(clientctx,
854	min_proto_version)))
855	\|\| (max_proto_version > 0
856	&& !TEST_true(SSL_CTX_set_max_proto_version(clientctx,
857	max_proto_version)))))
858	goto err;
859
860	if (serverctx != NULL && certfile != NULL && privkeyfile != NULL) {
861	if (!TEST_int_eq(SSL_CTX_use_certificate_file(serverctx, certfile,
862	SSL_FILETYPE_PEM), 1)
863	\|\| !TEST_int_eq(SSL_CTX_use_PrivateKey_file(serverctx,
864	privkeyfile,
865	SSL_FILETYPE_PEM), 1)
866	\|\| !TEST_int_eq(SSL_CTX_check_private_key(serverctx), 1))
867	goto err;
868	}
869
870	if (sctx != NULL)
871	*sctx = serverctx;
872	if (cctx != NULL)
873	*cctx = clientctx;
874	return 1;
875
876	err:
877	if (sctx != NULL && *sctx == NULL)
878	SSL_CTX_free(serverctx);
879	if (cctx != NULL && *cctx == NULL)
880	SSL_CTX_free(clientctx);
881	return 0;
882	}
883
884	#define MAXLOOPS 1000000
885
886	#if !defined(OPENSSL_NO_KTLS) && !defined(OPENSSL_NO_SOCK)
887	static int set_nb(int fd)
888	{
889	int flags;
890
891	flags = fcntl(fd,F_GETFL,0);
892	if (flags == -1)
893	return flags;
894	flags = fcntl(fd, F_SETFL, flags \| O_NONBLOCK);
895	return flags;
896	}
897
898	int create_test_sockets(int cfdp, int sfdp)
899	{
900	struct sockaddr_in sin;
901	const char *host = "127.0.0.1";
902	int cfd_connected = 0, ret = 0;
903	socklen_t slen = sizeof(sin);
904	int afd = -1, cfd = -1, sfd = -1;
905
906	memset ((char *) &sin, 0, sizeof(sin));
907	sin.sin_family = AF_INET;
908	sin.sin_addr.s_addr = inet_addr(host);
909
910	afd = socket(AF_INET, SOCK_STREAM, 0);
911	if (afd < 0)
912	return 0;
913
914	if (bind(afd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
915	goto out;
916
917	if (getsockname(afd, (struct sockaddr*)&sin, &slen) < 0)
918	goto out;
919
920	if (listen(afd, 1) < 0)
921	goto out;
922
923	cfd = socket(AF_INET, SOCK_STREAM, 0);
924	if (cfd < 0)
925	goto out;
926
927	if (set_nb(afd) == -1)
928	goto out;
929
930	while (sfd == -1 \|\| !cfd_connected ) {
931	sfd = accept(afd, NULL, 0);
932	if (sfd == -1 && errno != EAGAIN)
933	goto out;
934
935	if (!cfd_connected && connect(cfd, (struct sockaddr*)&sin, sizeof(sin)) < 0)
936	goto out;
937	else
938	cfd_connected = 1;
939	}
940
941	if (set_nb(cfd) == -1 \|\| set_nb(sfd) == -1)
942	goto out;
943	ret = 1;
944	*cfdp = cfd;
945	*sfdp = sfd;
946	goto success;
947
948	out:
949	if (cfd != -1)
950	close(cfd);
951	if (sfd != -1)
952	close(sfd);
953	success:
954	if (afd != -1)
955	close(afd);
956	return ret;
957	}
958
959	int create_ssl_objects2(SSL_CTX serverctx, SSL_CTX clientctx, SSL **sssl,
960	SSL **cssl, int sfd, int cfd)
961	{
962	SSL serverssl = NULL, clientssl = NULL;
963	BIO s_to_c_bio = NULL, c_to_s_bio = NULL;
964
965	if (*sssl != NULL)
966	serverssl = *sssl;
967	else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
968	goto error;
969	if (*cssl != NULL)
970	clientssl = *cssl;
971	else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
972	goto error;
973
974	if (!TEST_ptr(s_to_c_bio = BIO_new_socket(sfd, BIO_NOCLOSE))
975	\|\| !TEST_ptr(c_to_s_bio = BIO_new_socket(cfd, BIO_NOCLOSE)))
976	goto error;
977
978	SSL_set_bio(clientssl, c_to_s_bio, c_to_s_bio);
979	SSL_set_bio(serverssl, s_to_c_bio, s_to_c_bio);
980	*sssl = serverssl;
981	*cssl = clientssl;
982	return 1;
983
984	error:
985	SSL_free(serverssl);
986	SSL_free(clientssl);
987	BIO_free(s_to_c_bio);
988	BIO_free(c_to_s_bio);
989	return 0;
990	}
991	#endif
992
993	/*
994	* NOTE: Transfers control of the BIOs - this function will free them on error
995	*/
996	int create_ssl_objects(SSL_CTX serverctx, SSL_CTX clientctx, SSL **sssl,
997	SSL *cssl, BIO s_to_c_fbio, BIO *c_to_s_fbio)
998	{
999	SSL serverssl = NULL, clientssl = NULL;
1000	BIO s_to_c_bio = NULL, c_to_s_bio = NULL;
1001
1002	if (*sssl != NULL)
1003	serverssl = *sssl;
1004	else if (!TEST_ptr(serverssl = SSL_new(serverctx)))
1005	goto error;
1006	if (*cssl != NULL)
1007	clientssl = *cssl;
1008	else if (!TEST_ptr(clientssl = SSL_new(clientctx)))
1009	goto error;
1010
1011	if (SSL_is_dtls(clientssl)) {
1012	if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))
1013	\|\| !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))
1014	goto error;
1015	} else {
1016	if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))
1017	\|\| !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))
1018	goto error;
1019	}
1020
1021	if (s_to_c_fbio != NULL
1022	&& !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))
1023	goto error;
1024	if (c_to_s_fbio != NULL
1025	&& !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))
1026	goto error;
1027
1028	/* Set Non-blocking IO behaviour */
1029	BIO_set_mem_eof_return(s_to_c_bio, -1);
1030	BIO_set_mem_eof_return(c_to_s_bio, -1);
1031
1032	/* Up ref these as we are passing them to two SSL objects */
1033	SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
1034	BIO_up_ref(s_to_c_bio);
1035	BIO_up_ref(c_to_s_bio);
1036	SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
1037	*sssl = serverssl;
1038	*cssl = clientssl;
1039	return 1;
1040
1041	error:
1042	SSL_free(serverssl);
1043	SSL_free(clientssl);
1044	BIO_free(s_to_c_bio);
1045	BIO_free(c_to_s_bio);
1046	BIO_free(s_to_c_fbio);
1047	BIO_free(c_to_s_fbio);
1048
1049	return 0;
1050	}
1051
1052	/*
1053	* Create an SSL connection, but does not read any post-handshake
1054	* NewSessionTicket messages.
1055	* If \|read\| is set and we're using DTLS then we will attempt to SSL_read on
1056	* the connection once we've completed one half of it, to ensure any retransmits
1057	* get triggered.
1058	* We stop the connection attempt (and return a failure value) if either peer
1059	* has SSL_get_error() return the value in the \|want\| parameter. The connection
1060	* attempt could be restarted by a subsequent call to this function.
1061	*/
1062	int create_bare_ssl_connection(SSL serverssl, SSL clientssl, int want,
1063	int read)
1064	{
1065	int retc = -1, rets = -1, err, abortctr = 0;
1066	int clienterr = 0, servererr = 0;
1067	int isdtls = SSL_is_dtls(serverssl);
1068
1069	do {
1070	err = SSL_ERROR_WANT_WRITE;
1071	while (!clienterr && retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
1072	retc = SSL_connect(clientssl);
1073	if (retc <= 0)
1074	err = SSL_get_error(clientssl, retc);
1075	}
1076
1077	if (!clienterr && retc <= 0 && err != SSL_ERROR_WANT_READ) {
1078	TEST_info("SSL_connect() failed %d, %d", retc, err);
1079	if (want != SSL_ERROR_SSL)
1080	TEST_openssl_errors();
1081	clienterr = 1;
1082	}
1083	if (want != SSL_ERROR_NONE && err == want)
1084	return 0;
1085
1086	err = SSL_ERROR_WANT_WRITE;
1087	while (!servererr && rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
1088	rets = SSL_accept(serverssl);
1089	if (rets <= 0)
1090	err = SSL_get_error(serverssl, rets);
1091	}
1092
1093	if (!servererr && rets <= 0
1094	&& err != SSL_ERROR_WANT_READ
1095	&& err != SSL_ERROR_WANT_X509_LOOKUP) {
1096	TEST_info("SSL_accept() failed %d, %d", rets, err);
1097	if (want != SSL_ERROR_SSL)
1098	TEST_openssl_errors();
1099	servererr = 1;
1100	}
1101	if (want != SSL_ERROR_NONE && err == want)
1102	return 0;
1103	if (clienterr && servererr)
1104	return 0;
1105	if (isdtls && read) {
1106	unsigned char buf[20];
1107
1108	/* Trigger any retransmits that may be appropriate */
1109	if (rets > 0 && retc <= 0) {
1110	if (SSL_read(serverssl, buf, sizeof(buf)) > 0) {
1111	/* We don't expect this to succeed! */
1112	TEST_info("Unexpected SSL_read() success!");
1113	return 0;
1114	}
1115	}
1116	if (retc > 0 && rets <= 0) {
1117	if (SSL_read(clientssl, buf, sizeof(buf)) > 0) {
1118	/* We don't expect this to succeed! */
1119	TEST_info("Unexpected SSL_read() success!");
1120	return 0;
1121	}
1122	}
1123	}
1124	if (++abortctr == MAXLOOPS) {
1125	TEST_info("No progress made");
1126	return 0;
1127	}
1128	if (isdtls && abortctr <= 50 && (abortctr % 10) == 0) {
1129	/*
1130	* It looks like we're just spinning. Pause for a short period to
1131	* give the DTLS timer a chance to do something. We only do this for
1132	* the first few times to prevent hangs.
1133	*/
1134	ossl_sleep(50);
1135	}
1136	} while (retc <=0 \|\| rets <= 0);
1137
1138	return 1;
1139	}
1140
1141	/*
1142	* Create an SSL connection including any post handshake NewSessionTicket
1143	* messages.
1144	*/
1145	int create_ssl_connection(SSL serverssl, SSL clientssl, int want)
1146	{
1147	int i;
1148	unsigned char buf;
1149	size_t readbytes;
1150
1151	if (!create_bare_ssl_connection(serverssl, clientssl, want, 1))
1152	return 0;
1153
1154	/*
1155	* We attempt to read some data on the client side which we expect to fail.
1156	* This will ensure we have received the NewSessionTicket in TLSv1.3 where
1157	* appropriate. We do this twice because there are 2 NewSessionTickets.
1158	*/
1159	for (i = 0; i < 2; i++) {
1160	if (SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes) > 0) {
1161	if (!TEST_ulong_eq(readbytes, 0))
1162	return 0;
1163	} else if (!TEST_int_eq(SSL_get_error(clientssl, 0),
1164	SSL_ERROR_WANT_READ)) {
1165	return 0;
1166	}
1167	}
1168
1169	return 1;
1170	}
1171
1172	void shutdown_ssl_connection(SSL serverssl, SSL clientssl)
1173	{
1174	SSL_shutdown(clientssl);
1175	SSL_shutdown(serverssl);
1176	SSL_free(serverssl);
1177	SSL_free(clientssl);
1178	}

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source: vbox/trunk/src/libs/openssl-3.0.9/test/helpers/ssltestlib.c@ 100715

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