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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/bio/bss_conn.c
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
downloadopenbsd-tb_20250414.tar.gz
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This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libcrypto/bio/bss_conn.c')
-rw-r--r--src/lib/libcrypto/bio/bss_conn.c598
1 files changed, 0 insertions, 598 deletions
diff --git a/src/lib/libcrypto/bio/bss_conn.c b/src/lib/libcrypto/bio/bss_conn.c
deleted file mode 100644
index 3b0e3d3bdd..0000000000
--- a/src/lib/libcrypto/bio/bss_conn.c
+++ /dev/null
@@ -1,598 +0,0 @@
1/* $OpenBSD: bss_conn.c,v 1.41 2024/04/19 09:54:36 tb Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <sys/socket.h>
60
61#include <netinet/in.h>
62
63#include <errno.h>
64#include <netdb.h>
65#include <stdio.h>
66#include <string.h>
67#include <unistd.h>
68
69#include <openssl/bio.h>
70#include <openssl/buffer.h>
71#include <openssl/err.h>
72
73#include "bio_local.h"
74
75#define SOCKET_PROTOCOL IPPROTO_TCP
76
77typedef struct bio_connect_st {
78 int state;
79
80 char *param_hostname;
81 char *param_port;
82 int nbio;
83
84 unsigned char ip[4];
85 unsigned short port;
86
87 struct sockaddr_in them;
88
89 /* int socket; this will be kept in bio->num so that it is
90 * compatible with the bss_sock bio */
91
92 /* called when the connection is initially made
93 * callback(BIO,state,ret); The callback should return
94 * 'ret'. state is for compatibility with the ssl info_callback */
95 BIO_info_cb *info_callback;
96} BIO_CONNECT;
97
98static int conn_write(BIO *h, const char *buf, int num);
99static int conn_read(BIO *h, char *buf, int size);
100static int conn_puts(BIO *h, const char *str);
101static long conn_ctrl(BIO *h, int cmd, long arg1, void *arg2);
102static int conn_new(BIO *h);
103static int conn_free(BIO *data);
104static long conn_callback_ctrl(BIO *h, int cmd, BIO_info_cb *);
105
106static int conn_state(BIO *b, BIO_CONNECT *c);
107static void conn_close_socket(BIO *data);
108static BIO_CONNECT *BIO_CONNECT_new(void);
109static void BIO_CONNECT_free(BIO_CONNECT *a);
110
111static const BIO_METHOD methods_connectp = {
112 .type = BIO_TYPE_CONNECT,
113 .name = "socket connect",
114 .bwrite = conn_write,
115 .bread = conn_read,
116 .bputs = conn_puts,
117 .ctrl = conn_ctrl,
118 .create = conn_new,
119 .destroy = conn_free,
120 .callback_ctrl = conn_callback_ctrl
121};
122
123static int
124conn_state(BIO *b, BIO_CONNECT *c)
125{
126 int ret = -1, i;
127 unsigned long l;
128 char *p, *q;
129 BIO_info_cb *cb = NULL;
130
131 if (c->info_callback != NULL)
132 cb = c->info_callback;
133
134 for (;;) {
135 switch (c->state) {
136 case BIO_CONN_S_BEFORE:
137 p = c->param_hostname;
138 if (p == NULL) {
139 BIOerror(BIO_R_NO_HOSTNAME_SPECIFIED);
140 goto exit_loop;
141 }
142 for (; *p != '\0'; p++) {
143 if ((*p == ':') || (*p == '/'))
144 break;
145 }
146
147 i= *p;
148 if ((i == ':') || (i == '/')) {
149 *(p++) = '\0';
150 if (i == ':') {
151 for (q = p; *q; q++)
152 if (*q == '/') {
153 *q = '\0';
154 break;
155 }
156 free(c->param_port);
157 c->param_port = strdup(p);
158 }
159 }
160
161 if (c->param_port == NULL) {
162 BIOerror(BIO_R_NO_PORT_SPECIFIED);
163 ERR_asprintf_error_data("host=%s",
164 c->param_hostname);
165 goto exit_loop;
166 }
167 c->state = BIO_CONN_S_GET_IP;
168 break;
169
170 case BIO_CONN_S_GET_IP:
171 if (BIO_get_host_ip(c->param_hostname, &(c->ip[0])) <= 0)
172 goto exit_loop;
173 c->state = BIO_CONN_S_GET_PORT;
174 break;
175
176 case BIO_CONN_S_GET_PORT:
177 if (c->param_port == NULL) {
178 /* abort(); */
179 goto exit_loop;
180 } else if (BIO_get_port(c->param_port, &c->port) <= 0)
181 goto exit_loop;
182 c->state = BIO_CONN_S_CREATE_SOCKET;
183 break;
184
185 case BIO_CONN_S_CREATE_SOCKET:
186 /* now setup address */
187 memset((char *)&c->them, 0, sizeof(c->them));
188 c->them.sin_family = AF_INET;
189 c->them.sin_port = htons((unsigned short)c->port);
190 l = (unsigned long)
191 ((unsigned long)c->ip[0] << 24L)|
192 ((unsigned long)c->ip[1] << 16L)|
193 ((unsigned long)c->ip[2] << 8L)|
194 ((unsigned long)c->ip[3]);
195 c->them.sin_addr.s_addr = htonl(l);
196 c->state = BIO_CONN_S_CREATE_SOCKET;
197
198 ret = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL);
199 if (ret == -1) {
200 SYSerror(errno);
201 ERR_asprintf_error_data("host=%s:%s",
202 c->param_hostname, c->param_port);
203 BIOerror(BIO_R_UNABLE_TO_CREATE_SOCKET);
204 goto exit_loop;
205 }
206 b->num = ret;
207 c->state = BIO_CONN_S_NBIO;
208 break;
209
210 case BIO_CONN_S_NBIO:
211 if (c->nbio) {
212 if (!BIO_socket_nbio(b->num, 1)) {
213 BIOerror(BIO_R_ERROR_SETTING_NBIO);
214 ERR_asprintf_error_data("host=%s:%s",
215 c->param_hostname, c->param_port);
216 goto exit_loop;
217 }
218 }
219 c->state = BIO_CONN_S_CONNECT;
220
221#if defined(SO_KEEPALIVE)
222 i = 1;
223 i = setsockopt(b->num, SOL_SOCKET, SO_KEEPALIVE, &i, sizeof(i));
224 if (i < 0) {
225 SYSerror(errno);
226 ERR_asprintf_error_data("host=%s:%s",
227 c->param_hostname, c->param_port);
228 BIOerror(BIO_R_KEEPALIVE);
229 goto exit_loop;
230 }
231#endif
232 break;
233
234 case BIO_CONN_S_CONNECT:
235 BIO_clear_retry_flags(b);
236 ret = connect(b->num,
237 (struct sockaddr *)&c->them,
238 sizeof(c->them));
239 b->retry_reason = 0;
240 if (ret < 0) {
241 if (BIO_sock_should_retry(ret)) {
242 BIO_set_retry_special(b);
243 c->state = BIO_CONN_S_BLOCKED_CONNECT;
244 b->retry_reason = BIO_RR_CONNECT;
245 } else {
246 SYSerror(errno);
247 ERR_asprintf_error_data("host=%s:%s",
248 c->param_hostname, c->param_port);
249 BIOerror(BIO_R_CONNECT_ERROR);
250 }
251 goto exit_loop;
252 } else
253 c->state = BIO_CONN_S_OK;
254 break;
255
256 case BIO_CONN_S_BLOCKED_CONNECT:
257 i = BIO_sock_error(b->num);
258 if (i) {
259 BIO_clear_retry_flags(b);
260 SYSerror(i);
261 ERR_asprintf_error_data("host=%s:%s",
262 c->param_hostname, c->param_port);
263 BIOerror(BIO_R_NBIO_CONNECT_ERROR);
264 ret = 0;
265 goto exit_loop;
266 } else
267 c->state = BIO_CONN_S_OK;
268 break;
269
270 case BIO_CONN_S_OK:
271 ret = 1;
272 goto exit_loop;
273 default:
274 /* abort(); */
275 goto exit_loop;
276 }
277
278 if (cb != NULL) {
279 if (!(ret = cb((BIO *)b, c->state, ret)))
280 goto end;
281 }
282 }
283
284 /* Loop does not exit */
285exit_loop:
286 if (cb != NULL)
287 ret = cb((BIO *)b, c->state, ret);
288end:
289 return (ret);
290}
291
292static BIO_CONNECT *
293BIO_CONNECT_new(void)
294{
295 BIO_CONNECT *ret;
296
297 if ((ret = malloc(sizeof(BIO_CONNECT))) == NULL)
298 return (NULL);
299 ret->state = BIO_CONN_S_BEFORE;
300 ret->param_hostname = NULL;
301 ret->param_port = NULL;
302 ret->info_callback = NULL;
303 ret->nbio = 0;
304 ret->ip[0] = 0;
305 ret->ip[1] = 0;
306 ret->ip[2] = 0;
307 ret->ip[3] = 0;
308 ret->port = 0;
309 memset((char *)&ret->them, 0, sizeof(ret->them));
310 return (ret);
311}
312
313static void
314BIO_CONNECT_free(BIO_CONNECT *a)
315{
316 if (a == NULL)
317 return;
318
319 free(a->param_hostname);
320 free(a->param_port);
321 free(a);
322}
323
324const BIO_METHOD *
325BIO_s_connect(void)
326{
327 return (&methods_connectp);
328}
329LCRYPTO_ALIAS(BIO_s_connect);
330
331static int
332conn_new(BIO *bi)
333{
334 bi->init = 0;
335 bi->num = -1;
336 bi->flags = 0;
337 if ((bi->ptr = (char *)BIO_CONNECT_new()) == NULL)
338 return (0);
339 else
340 return (1);
341}
342
343static void
344conn_close_socket(BIO *bio)
345{
346 BIO_CONNECT *c;
347
348 c = (BIO_CONNECT *)bio->ptr;
349 if (bio->num != -1) {
350 /* Only do a shutdown if things were established */
351 if (c->state == BIO_CONN_S_OK)
352 shutdown(bio->num, SHUT_RDWR);
353 close(bio->num);
354 bio->num = -1;
355 }
356}
357
358static int
359conn_free(BIO *a)
360{
361 BIO_CONNECT *data;
362
363 if (a == NULL)
364 return (0);
365 data = (BIO_CONNECT *)a->ptr;
366
367 if (a->shutdown) {
368 conn_close_socket(a);
369 BIO_CONNECT_free(data);
370 a->ptr = NULL;
371 a->flags = 0;
372 a->init = 0;
373 }
374 return (1);
375}
376
377static int
378conn_read(BIO *b, char *out, int outl)
379{
380 int ret = 0;
381 BIO_CONNECT *data;
382
383 data = (BIO_CONNECT *)b->ptr;
384 if (data->state != BIO_CONN_S_OK) {
385 ret = conn_state(b, data);
386 if (ret <= 0)
387 return (ret);
388 }
389
390 if (out != NULL) {
391 errno = 0;
392 ret = read(b->num, out, outl);
393 BIO_clear_retry_flags(b);
394 if (ret <= 0) {
395 if (BIO_sock_should_retry(ret))
396 BIO_set_retry_read(b);
397 }
398 }
399 return (ret);
400}
401
402static int
403conn_write(BIO *b, const char *in, int inl)
404{
405 int ret;
406 BIO_CONNECT *data;
407
408 data = (BIO_CONNECT *)b->ptr;
409 if (data->state != BIO_CONN_S_OK) {
410 ret = conn_state(b, data);
411 if (ret <= 0)
412 return (ret);
413 }
414
415 errno = 0;
416 ret = write(b->num, in, inl);
417 BIO_clear_retry_flags(b);
418 if (ret <= 0) {
419 if (BIO_sock_should_retry(ret))
420 BIO_set_retry_write(b);
421 }
422 return (ret);
423}
424
425static long
426conn_ctrl(BIO *b, int cmd, long num, void *ptr)
427{
428 BIO *dbio;
429 int *ip;
430 const char **pptr;
431 long ret = 1;
432 BIO_CONNECT *data;
433
434 data = (BIO_CONNECT *)b->ptr;
435
436 switch (cmd) {
437 case BIO_CTRL_RESET:
438 ret = 0;
439 data->state = BIO_CONN_S_BEFORE;
440 conn_close_socket(b);
441 b->flags = 0;
442 break;
443 case BIO_C_DO_STATE_MACHINE:
444 /* use this one to start the connection */
445 if (data->state != BIO_CONN_S_OK)
446 ret = (long)conn_state(b, data);
447 else
448 ret = 1;
449 break;
450 case BIO_C_GET_CONNECT:
451 if (ptr != NULL) {
452 pptr = (const char **)ptr;
453 if (num == 0) {
454 *pptr = data->param_hostname;
455
456 } else if (num == 1) {
457 *pptr = data->param_port;
458 } else if (num == 2) {
459 *pptr = (char *)&(data->ip[0]);
460 } else if (num == 3) {
461 *((int *)ptr) = data->port;
462 }
463 if ((!b->init) || (ptr == NULL))
464 *pptr = "not initialized";
465 ret = 1;
466 }
467 break;
468 case BIO_C_SET_CONNECT:
469 if (ptr != NULL) {
470 b->init = 1;
471 if (num == 0) {
472 free(data->param_hostname);
473 data->param_hostname = strdup(ptr);
474 } else if (num == 1) {
475 free(data->param_port);
476 data->param_port = strdup(ptr);
477 } else if (num == 2) {
478 unsigned char *p = ptr;
479 free(data->param_hostname);
480 if (asprintf(&data->param_hostname,
481 "%u.%u.%u.%u", p[0], p[1],
482 p[2], p[3]) == -1)
483 data->param_hostname = NULL;
484 memcpy(&(data->ip[0]), ptr, 4);
485 } else if (num == 3) {
486 free(data->param_port);
487 data->port= *(int *)ptr;
488 if (asprintf(&data->param_port, "%d",
489 data->port) == -1)
490 data->param_port = NULL;
491 }
492 }
493 break;
494 case BIO_C_SET_NBIO:
495 data->nbio = (int)num;
496 break;
497 case BIO_C_GET_FD:
498 if (b->init) {
499 ip = (int *)ptr;
500 if (ip != NULL)
501 *ip = b->num;
502 ret = b->num;
503 } else
504 ret = -1;
505 break;
506 case BIO_CTRL_GET_CLOSE:
507 ret = b->shutdown;
508 break;
509 case BIO_CTRL_SET_CLOSE:
510 b->shutdown = (int)num;
511 break;
512 case BIO_CTRL_PENDING:
513 case BIO_CTRL_WPENDING:
514 ret = 0;
515 break;
516 case BIO_CTRL_FLUSH:
517 break;
518 case BIO_CTRL_DUP:
519 {
520 dbio = (BIO *)ptr;
521 if (data->param_port)
522 BIO_set_conn_port(dbio, data->param_port);
523 if (data->param_hostname)
524 BIO_set_conn_hostname(dbio,
525 data->param_hostname);
526 BIO_set_nbio(dbio, data->nbio);
527 (void)BIO_set_info_callback(dbio, data->info_callback);
528 }
529 break;
530 case BIO_CTRL_SET_CALLBACK:
531 {
532#if 0 /* FIXME: Should this be used? -- Richard Levitte */
533 BIOerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
534 ret = -1;
535#else
536 ret = 0;
537#endif
538 }
539 break;
540 case BIO_CTRL_GET_CALLBACK:
541 {
542 BIO_info_cb **fptr = ptr;
543
544 *fptr = data->info_callback;
545 }
546 break;
547 default:
548 ret = 0;
549 break;
550 }
551 return (ret);
552}
553
554static long
555conn_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
556{
557 long ret = 1;
558 BIO_CONNECT *data;
559
560 data = (BIO_CONNECT *)b->ptr;
561
562 switch (cmd) {
563 case BIO_CTRL_SET_CALLBACK:
564 data->info_callback = (BIO_info_cb *)fp;
565 break;
566 default:
567 ret = 0;
568 break;
569 }
570 return (ret);
571}
572
573static int
574conn_puts(BIO *bp, const char *str)
575{
576 int n, ret;
577
578 n = strlen(str);
579 ret = conn_write(bp, str, n);
580 return (ret);
581}
582
583BIO *
584BIO_new_connect(const char *str)
585{
586 BIO *ret;
587
588 ret = BIO_new(BIO_s_connect());
589 if (ret == NULL)
590 return (NULL);
591 if (BIO_set_conn_hostname(ret, str))
592 return (ret);
593 else {
594 BIO_free(ret);
595 return (NULL);
596 }
597}
598LCRYPTO_ALIAS(BIO_new_connect);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 19:47:41 +0000