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-rw-r--r--src/lib/libcrypto/bio/bss_conn.c604
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diff --git a/src/lib/libcrypto/bio/bss_conn.c b/src/lib/libcrypto/bio/bss_conn.c
deleted file mode 100644
index 7f50936677..0000000000
--- a/src/lib/libcrypto/bio/bss_conn.c
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1/* $OpenBSD: bss_conn.c,v 1.32 2014/11/26 05:37:26 bcook 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#define SOCKET_PROTOCOL IPPROTO_TCP
74
75typedef struct bio_connect_st {
76 int state;
77
78 char *param_hostname;
79 char *param_port;
80 int nbio;
81
82 unsigned char ip[4];
83 unsigned short port;
84
85 struct sockaddr_in them;
86
87 /* int socket; this will be kept in bio->num so that it is
88 * compatible with the bss_sock bio */
89
90 /* called when the connection is initially made
91 * callback(BIO,state,ret); The callback should return
92 * 'ret'. state is for compatibility with the ssl info_callback */
93 int (*info_callback)(const BIO *bio, int state, int ret);
94} BIO_CONNECT;
95
96static int conn_write(BIO *h, const char *buf, int num);
97static int conn_read(BIO *h, char *buf, int size);
98static int conn_puts(BIO *h, const char *str);
99static long conn_ctrl(BIO *h, int cmd, long arg1, void *arg2);
100static int conn_new(BIO *h);
101static int conn_free(BIO *data);
102static long conn_callback_ctrl(BIO *h, int cmd, bio_info_cb *);
103
104static int conn_state(BIO *b, BIO_CONNECT *c);
105static void conn_close_socket(BIO *data);
106BIO_CONNECT *BIO_CONNECT_new(void);
107void BIO_CONNECT_free(BIO_CONNECT *a);
108
109static BIO_METHOD methods_connectp = {
110 .type = BIO_TYPE_CONNECT,
111 .name = "socket connect",
112 .bwrite = conn_write,
113 .bread = conn_read,
114 .bputs = conn_puts,
115 .ctrl = conn_ctrl,
116 .create = conn_new,
117 .destroy = conn_free,
118 .callback_ctrl = conn_callback_ctrl
119};
120
121static int
122conn_state(BIO *b, BIO_CONNECT *c)
123{
124 int ret = -1, i;
125 unsigned long l;
126 char *p, *q;
127 int (*cb)(const BIO *, int, int) = NULL;
128
129 if (c->info_callback != NULL)
130 cb = c->info_callback;
131
132 for (;;) {
133 switch (c->state) {
134 case BIO_CONN_S_BEFORE:
135 p = c->param_hostname;
136 if (p == NULL) {
137 BIOerr(BIO_F_CONN_STATE, BIO_R_NO_HOSTNAME_SPECIFIED);
138 goto exit_loop;
139 }
140 for (; *p != '\0'; p++) {
141 if ((*p == ':') || (*p == '/'))
142 break;
143 }
144
145 i= *p;
146 if ((i == ':') || (i == '/')) {
147 *(p++) = '\0';
148 if (i == ':') {
149 for (q = p; *q; q++)
150 if (*q == '/') {
151 *q = '\0';
152 break;
153 }
154 free(c->param_port);
155 c->param_port = strdup(p);
156 }
157 }
158
159 if (c->param_port == NULL) {
160 BIOerr(BIO_F_CONN_STATE, BIO_R_NO_PORT_SPECIFIED);
161 ERR_asprintf_error_data("host=%s",
162 c->param_hostname);
163 goto exit_loop;
164 }
165 c->state = BIO_CONN_S_GET_IP;
166 break;
167
168 case BIO_CONN_S_GET_IP:
169 if (BIO_get_host_ip(c->param_hostname, &(c->ip[0])) <= 0)
170 goto exit_loop;
171 c->state = BIO_CONN_S_GET_PORT;
172 break;
173
174 case BIO_CONN_S_GET_PORT:
175 if (c->param_port == NULL) {
176 /* abort(); */
177 goto exit_loop;
178 } else if (BIO_get_port(c->param_port, &c->port) <= 0)
179 goto exit_loop;
180 c->state = BIO_CONN_S_CREATE_SOCKET;
181 break;
182
183 case BIO_CONN_S_CREATE_SOCKET:
184 /* now setup address */
185 memset((char *)&c->them, 0, sizeof(c->them));
186 c->them.sin_family = AF_INET;
187 c->them.sin_port = htons((unsigned short)c->port);
188 l = (unsigned long)
189 ((unsigned long)c->ip[0] << 24L)|
190 ((unsigned long)c->ip[1] << 16L)|
191 ((unsigned long)c->ip[2] << 8L)|
192 ((unsigned long)c->ip[3]);
193 c->them.sin_addr.s_addr = htonl(l);
194 c->state = BIO_CONN_S_CREATE_SOCKET;
195
196 ret = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL);
197 if (ret == -1) {
198 SYSerr(SYS_F_SOCKET, errno);
199 ERR_asprintf_error_data("host=%s:%s",
200 c->param_hostname, c->param_port);
201 BIOerr(BIO_F_CONN_STATE,
202 BIO_R_UNABLE_TO_CREATE_SOCKET);
203 goto exit_loop;
204 }
205 b->num = ret;
206 c->state = BIO_CONN_S_NBIO;
207 break;
208
209 case BIO_CONN_S_NBIO:
210 if (c->nbio) {
211 if (!BIO_socket_nbio(b->num, 1)) {
212 BIOerr(BIO_F_CONN_STATE,
213 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 SYSerr(SYS_F_SOCKET, errno);
226 ERR_asprintf_error_data("host=%s:%s",
227 c->param_hostname, c->param_port);
228 BIOerr(BIO_F_CONN_STATE, 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 SYSerr(SYS_F_CONNECT, errno);
247 ERR_asprintf_error_data("host=%s:%s",
248 c->param_hostname, c->param_port);
249 BIOerr(BIO_F_CONN_STATE,
250 BIO_R_CONNECT_ERROR);
251 }
252 goto exit_loop;
253 } else
254 c->state = BIO_CONN_S_OK;
255 break;
256
257 case BIO_CONN_S_BLOCKED_CONNECT:
258 i = BIO_sock_error(b->num);
259 if (i) {
260 BIO_clear_retry_flags(b);
261 SYSerr(SYS_F_CONNECT, i);
262 ERR_asprintf_error_data("host=%s:%s",
263 c->param_hostname, c->param_port);
264 BIOerr(BIO_F_CONN_STATE,
265 BIO_R_NBIO_CONNECT_ERROR);
266 ret = 0;
267 goto exit_loop;
268 } else
269 c->state = BIO_CONN_S_OK;
270 break;
271
272 case BIO_CONN_S_OK:
273 ret = 1;
274 goto exit_loop;
275 default:
276 /* abort(); */
277 goto exit_loop;
278 }
279
280 if (cb != NULL) {
281 if (!(ret = cb((BIO *)b, c->state, ret)))
282 goto end;
283 }
284 }
285
286 /* Loop does not exit */
287exit_loop:
288 if (cb != NULL)
289 ret = cb((BIO *)b, c->state, ret);
290end:
291 return (ret);
292}
293
294BIO_CONNECT *
295BIO_CONNECT_new(void)
296{
297 BIO_CONNECT *ret;
298
299 if ((ret = malloc(sizeof(BIO_CONNECT))) == NULL)
300 return (NULL);
301 ret->state = BIO_CONN_S_BEFORE;
302 ret->param_hostname = NULL;
303 ret->param_port = NULL;
304 ret->info_callback = NULL;
305 ret->nbio = 0;
306 ret->ip[0] = 0;
307 ret->ip[1] = 0;
308 ret->ip[2] = 0;
309 ret->ip[3] = 0;
310 ret->port = 0;
311 memset((char *)&ret->them, 0, sizeof(ret->them));
312 return (ret);
313}
314
315void
316BIO_CONNECT_free(BIO_CONNECT *a)
317{
318 if (a == NULL)
319 return;
320
321 free(a->param_hostname);
322 free(a->param_port);
323 free(a);
324}
325
326BIO_METHOD *
327BIO_s_connect(void)
328{
329 return (&methods_connectp);
330}
331
332static int
333conn_new(BIO *bi)
334{
335 bi->init = 0;
336 bi->num = -1;
337 bi->flags = 0;
338 if ((bi->ptr = (char *)BIO_CONNECT_new()) == NULL)
339 return (0);
340 else
341 return (1);
342}
343
344static void
345conn_close_socket(BIO *bio)
346{
347 BIO_CONNECT *c;
348
349 c = (BIO_CONNECT *)bio->ptr;
350 if (bio->num != -1) {
351 /* Only do a shutdown if things were established */
352 if (c->state == BIO_CONN_S_OK)
353 shutdown(bio->num, SHUT_RDWR);
354 close(bio->num);
355 bio->num = -1;
356 }
357}
358
359static int
360conn_free(BIO *a)
361{
362 BIO_CONNECT *data;
363
364 if (a == NULL)
365 return (0);
366 data = (BIO_CONNECT *)a->ptr;
367
368 if (a->shutdown) {
369 conn_close_socket(a);
370 BIO_CONNECT_free(data);
371 a->ptr = NULL;
372 a->flags = 0;
373 a->init = 0;
374 }
375 return (1);
376}
377
378static int
379conn_read(BIO *b, char *out, int outl)
380{
381 int ret = 0;
382 BIO_CONNECT *data;
383
384 data = (BIO_CONNECT *)b->ptr;
385 if (data->state != BIO_CONN_S_OK) {
386 ret = conn_state(b, data);
387 if (ret <= 0)
388 return (ret);
389 }
390
391 if (out != NULL) {
392 errno = 0;
393 ret = read(b->num, out, outl);
394 BIO_clear_retry_flags(b);
395 if (ret <= 0) {
396 if (BIO_sock_should_retry(ret))
397 BIO_set_retry_read(b);
398 }
399 }
400 return (ret);
401}
402
403static int
404conn_write(BIO *b, const char *in, int inl)
405{
406 int ret;
407 BIO_CONNECT *data;
408
409 data = (BIO_CONNECT *)b->ptr;
410 if (data->state != BIO_CONN_S_OK) {
411 ret = conn_state(b, data);
412 if (ret <= 0)
413 return (ret);
414 }
415
416 errno = 0;
417 ret = write(b->num, in, inl);
418 BIO_clear_retry_flags(b);
419 if (ret <= 0) {
420 if (BIO_sock_should_retry(ret))
421 BIO_set_retry_write(b);
422 }
423 return (ret);
424}
425
426static long
427conn_ctrl(BIO *b, int cmd, long num, void *ptr)
428{
429 BIO *dbio;
430 int *ip;
431 const char **pptr;
432 long ret = 1;
433 BIO_CONNECT *data;
434
435 data = (BIO_CONNECT *)b->ptr;
436
437 switch (cmd) {
438 case BIO_CTRL_RESET:
439 ret = 0;
440 data->state = BIO_CONN_S_BEFORE;
441 conn_close_socket(b);
442 b->flags = 0;
443 break;
444 case BIO_C_DO_STATE_MACHINE:
445 /* use this one to start the connection */
446 if (data->state != BIO_CONN_S_OK)
447 ret = (long)conn_state(b, data);
448 else
449 ret = 1;
450 break;
451 case BIO_C_GET_CONNECT:
452 if (ptr != NULL) {
453 pptr = (const char **)ptr;
454 if (num == 0) {
455 *pptr = data->param_hostname;
456
457 } else if (num == 1) {
458 *pptr = data->param_port;
459 } else if (num == 2) {
460 *pptr = (char *)&(data->ip[0]);
461 } else if (num == 3) {
462 *((int *)ptr) = data->port;
463 }
464 if ((!b->init) || (ptr == NULL))
465 *pptr = "not initialized";
466 ret = 1;
467 }
468 break;
469 case BIO_C_SET_CONNECT:
470 if (ptr != NULL) {
471 b->init = 1;
472 if (num == 0) {
473 free(data->param_hostname);
474 data->param_hostname = strdup(ptr);
475 } else if (num == 1) {
476 free(data->param_port);
477 data->param_port = strdup(ptr);
478 } else if (num == 2) {
479 unsigned char *p = ptr;
480 free(data->param_hostname);
481 if (asprintf(&data->param_hostname,
482 "%u.%u.%u.%u", p[0], p[1],
483 p[2], p[3]) == -1)
484 data->param_hostname = NULL;
485 memcpy(&(data->ip[0]), ptr, 4);
486 } else if (num == 3) {
487 free(data->param_port);
488 data->port= *(int *)ptr;
489 if (asprintf(&data->param_port, "%d",
490 data->port) == -1)
491 data->param_port = NULL;
492 }
493 }
494 break;
495 case BIO_C_SET_NBIO:
496 data->nbio = (int)num;
497 break;
498 case BIO_C_GET_FD:
499 if (b->init) {
500 ip = (int *)ptr;
501 if (ip != NULL)
502 *ip = b->num;
503 ret = b->num;
504 } else
505 ret = -1;
506 break;
507 case BIO_CTRL_GET_CLOSE:
508 ret = b->shutdown;
509 break;
510 case BIO_CTRL_SET_CLOSE:
511 b->shutdown = (int)num;
512 break;
513 case BIO_CTRL_PENDING:
514 case BIO_CTRL_WPENDING:
515 ret = 0;
516 break;
517 case BIO_CTRL_FLUSH:
518 break;
519 case BIO_CTRL_DUP:
520 {
521 dbio = (BIO *)ptr;
522 if (data->param_port)
523 BIO_set_conn_port(dbio, data->param_port);
524 if (data->param_hostname)
525 BIO_set_conn_hostname(dbio,
526 data->param_hostname);
527 BIO_set_nbio(dbio, data->nbio);
528 /* FIXME: the cast of the function seems unlikely to be a good idea */
529 (void)BIO_set_info_callback(dbio,
530 (bio_info_cb *)data->info_callback);
531 }
532 break;
533 case BIO_CTRL_SET_CALLBACK:
534 {
535#if 0 /* FIXME: Should this be used? -- Richard Levitte */
536 BIOerr(BIO_F_CONN_CTRL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
537 ret = -1;
538#else
539 ret = 0;
540#endif
541 }
542 break;
543 case BIO_CTRL_GET_CALLBACK:
544 {
545 int (**fptr)(const BIO *bio, int state, int xret);
546
547 fptr = (int (**)(const BIO *bio, int state, int xret))ptr;
548 *fptr = data->info_callback;
549 }
550 break;
551 default:
552 ret = 0;
553 break;
554 }
555 return (ret);
556}
557
558static long
559conn_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
560{
561 long ret = 1;
562 BIO_CONNECT *data;
563
564 data = (BIO_CONNECT *)b->ptr;
565
566 switch (cmd) {
567 case BIO_CTRL_SET_CALLBACK:
568 {
569 data->info_callback = (int (*)(const struct bio_st *, int, int))fp;
570 }
571 break;
572 default:
573 ret = 0;
574 break;
575 }
576 return (ret);
577}
578
579static int
580conn_puts(BIO *bp, const char *str)
581{
582 int n, ret;
583
584 n = strlen(str);
585 ret = conn_write(bp, str, n);
586 return (ret);
587}
588
589BIO *
590BIO_new_connect(char *str)
591{
592 BIO *ret;
593
594 ret = BIO_new(BIO_s_connect());
595 if (ret == NULL)
596 return (NULL);
597 if (BIO_set_conn_hostname(ret, str))
598 return (ret);
599 else {
600 BIO_free(ret);
601 return (NULL);
602 }
603}
604
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