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36d16f8e | 1 | /* crypto/bio/bio_dgram.c */ |
0f113f3e | 2 | /* |
36d16f8e | 3 | * DTLS implementation written by Nagendra Modadugu |
0f113f3e | 4 | * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. |
36d16f8e BL |
5 | */ |
6 | /* ==================================================================== | |
7 | * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 14 | * notice, this list of conditions and the following disclaimer. |
36d16f8e BL |
15 | * |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * openssl-core@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
36d16f8e BL |
60 | #include <stdio.h> |
61 | #include <errno.h> | |
62 | #define USE_SOCKETS | |
b39fc560 | 63 | #include "internal/cryptlib.h" |
36d16f8e | 64 | |
36d16f8e | 65 | #include <openssl/bio.h> |
74e056ed | 66 | #ifndef OPENSSL_NO_DGRAM |
36d16f8e | 67 | |
0f113f3e MC |
68 | # if !(defined(_WIN32) || defined(OPENSSL_SYS_VMS)) |
69 | # include <sys/time.h> | |
70 | # endif | |
71 | # if defined(OPENSSL_SYS_VMS) | |
72 | # include <sys/timeb.h> | |
73 | # endif | |
e5fa864f | 74 | |
0f113f3e MC |
75 | # ifndef OPENSSL_NO_SCTP |
76 | # include <netinet/sctp.h> | |
77 | # include <fcntl.h> | |
78 | # define OPENSSL_SCTP_DATA_CHUNK_TYPE 0x00 | |
79 | # define OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE 0xc0 | |
80 | # endif | |
7e159e01 | 81 | |
0f113f3e MC |
82 | # if defined(OPENSSL_SYS_LINUX) && !defined(IP_MTU) |
83 | # define IP_MTU 14 /* linux is lame */ | |
84 | # endif | |
36d16f8e | 85 | |
0f113f3e MC |
86 | # if OPENSSL_USE_IPV6 && !defined(IPPROTO_IPV6) |
87 | # define IPPROTO_IPV6 41 /* windows is lame */ | |
88 | # endif | |
5833e4f5 | 89 | |
0f113f3e | 90 | # if defined(__FreeBSD__) && defined(IN6_IS_ADDR_V4MAPPED) |
03c1d9f9 | 91 | /* Standard definition causes type-punning problems. */ |
0f113f3e MC |
92 | # undef IN6_IS_ADDR_V4MAPPED |
93 | # define s6_addr32 __u6_addr.__u6_addr32 | |
94 | # define IN6_IS_ADDR_V4MAPPED(a) \ | |
03c1d9f9 BL |
95 | (((a)->s6_addr32[0] == 0) && \ |
96 | ((a)->s6_addr32[1] == 0) && \ | |
97 | ((a)->s6_addr32[2] == htonl(0x0000ffff))) | |
0f113f3e | 98 | # endif |
03c1d9f9 | 99 | |
0f113f3e MC |
100 | # ifdef WATT32 |
101 | # define sock_write SockWrite /* Watt-32 uses same names */ | |
102 | # define sock_read SockRead | |
103 | # define sock_puts SockPuts | |
104 | # endif | |
f642ebc1 | 105 | |
36d16f8e BL |
106 | static int dgram_write(BIO *h, const char *buf, int num); |
107 | static int dgram_read(BIO *h, char *buf, int size); | |
108 | static int dgram_puts(BIO *h, const char *str); | |
109 | static long dgram_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
110 | static int dgram_new(BIO *h); | |
111 | static int dgram_free(BIO *data); | |
112 | static int dgram_clear(BIO *bio); | |
113 | ||
0f113f3e | 114 | # ifndef OPENSSL_NO_SCTP |
7e159e01 DSH |
115 | static int dgram_sctp_write(BIO *h, const char *buf, int num); |
116 | static int dgram_sctp_read(BIO *h, char *buf, int size); | |
117 | static int dgram_sctp_puts(BIO *h, const char *str); | |
118 | static long dgram_sctp_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
119 | static int dgram_sctp_new(BIO *h); | |
120 | static int dgram_sctp_free(BIO *data); | |
0f113f3e MC |
121 | # ifdef SCTP_AUTHENTICATION_EVENT |
122 | static void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification | |
123 | *snp); | |
124 | # endif | |
125 | # endif | |
7e159e01 | 126 | |
b3e72fc3 | 127 | static int BIO_dgram_should_retry(int s); |
36d16f8e | 128 | |
5d6a0179 RL |
129 | static void get_current_time(struct timeval *t); |
130 | ||
0f113f3e MC |
131 | static BIO_METHOD methods_dgramp = { |
132 | BIO_TYPE_DGRAM, | |
133 | "datagram socket", | |
134 | dgram_write, | |
135 | dgram_read, | |
136 | dgram_puts, | |
137 | NULL, /* dgram_gets, */ | |
138 | dgram_ctrl, | |
139 | dgram_new, | |
140 | dgram_free, | |
141 | NULL, | |
142 | }; | |
143 | ||
144 | # ifndef OPENSSL_NO_SCTP | |
145 | static BIO_METHOD methods_dgramp_sctp = { | |
146 | BIO_TYPE_DGRAM_SCTP, | |
147 | "datagram sctp socket", | |
148 | dgram_sctp_write, | |
149 | dgram_sctp_read, | |
150 | dgram_sctp_puts, | |
151 | NULL, /* dgram_gets, */ | |
152 | dgram_sctp_ctrl, | |
153 | dgram_sctp_new, | |
154 | dgram_sctp_free, | |
155 | NULL, | |
156 | }; | |
157 | # endif | |
7e159e01 | 158 | |
0f113f3e MC |
159 | typedef struct bio_dgram_data_st { |
160 | union { | |
161 | struct sockaddr sa; | |
162 | struct sockaddr_in sa_in; | |
163 | # if OPENSSL_USE_IPV6 | |
164 | struct sockaddr_in6 sa_in6; | |
165 | # endif | |
166 | } peer; | |
167 | unsigned int connected; | |
168 | unsigned int _errno; | |
169 | unsigned int mtu; | |
170 | struct timeval next_timeout; | |
171 | struct timeval socket_timeout; | |
172 | } bio_dgram_data; | |
173 | ||
174 | # ifndef OPENSSL_NO_SCTP | |
175 | typedef struct bio_dgram_sctp_save_message_st { | |
176 | BIO *bio; | |
177 | char *data; | |
178 | int length; | |
179 | } bio_dgram_sctp_save_message; | |
180 | ||
181 | typedef struct bio_dgram_sctp_data_st { | |
182 | union { | |
183 | struct sockaddr sa; | |
184 | struct sockaddr_in sa_in; | |
185 | # if OPENSSL_USE_IPV6 | |
186 | struct sockaddr_in6 sa_in6; | |
187 | # endif | |
188 | } peer; | |
189 | unsigned int connected; | |
190 | unsigned int _errno; | |
191 | unsigned int mtu; | |
192 | struct bio_dgram_sctp_sndinfo sndinfo; | |
193 | struct bio_dgram_sctp_rcvinfo rcvinfo; | |
194 | struct bio_dgram_sctp_prinfo prinfo; | |
195 | void (*handle_notifications) (BIO *bio, void *context, void *buf); | |
196 | void *notification_context; | |
197 | int in_handshake; | |
198 | int ccs_rcvd; | |
199 | int ccs_sent; | |
200 | int save_shutdown; | |
201 | int peer_auth_tested; | |
202 | bio_dgram_sctp_save_message saved_message; | |
203 | } bio_dgram_sctp_data; | |
204 | # endif | |
7e159e01 | 205 | |
36d16f8e | 206 | BIO_METHOD *BIO_s_datagram(void) |
0f113f3e MC |
207 | { |
208 | return (&methods_dgramp); | |
209 | } | |
36d16f8e BL |
210 | |
211 | BIO *BIO_new_dgram(int fd, int close_flag) | |
0f113f3e MC |
212 | { |
213 | BIO *ret; | |
36d16f8e | 214 | |
0f113f3e MC |
215 | ret = BIO_new(BIO_s_datagram()); |
216 | if (ret == NULL) | |
217 | return (NULL); | |
218 | BIO_set_fd(ret, fd, close_flag); | |
219 | return (ret); | |
220 | } | |
36d16f8e BL |
221 | |
222 | static int dgram_new(BIO *bi) | |
0f113f3e MC |
223 | { |
224 | bio_dgram_data *data = NULL; | |
225 | ||
226 | bi->init = 0; | |
227 | bi->num = 0; | |
b4faea50 | 228 | data = OPENSSL_malloc(sizeof(*data)); |
0f113f3e MC |
229 | if (data == NULL) |
230 | return 0; | |
16f8d4eb | 231 | memset(data, 0, sizeof(*data)); |
36d16f8e BL |
232 | bi->ptr = data; |
233 | ||
0f113f3e MC |
234 | bi->flags = 0; |
235 | return (1); | |
236 | } | |
36d16f8e BL |
237 | |
238 | static int dgram_free(BIO *a) | |
0f113f3e MC |
239 | { |
240 | bio_dgram_data *data; | |
36d16f8e | 241 | |
0f113f3e MC |
242 | if (a == NULL) |
243 | return (0); | |
244 | if (!dgram_clear(a)) | |
245 | return 0; | |
36d16f8e | 246 | |
0f113f3e | 247 | data = (bio_dgram_data *)a->ptr; |
b548a1f1 | 248 | OPENSSL_free(data); |
36d16f8e | 249 | |
0f113f3e MC |
250 | return (1); |
251 | } | |
36d16f8e BL |
252 | |
253 | static int dgram_clear(BIO *a) | |
0f113f3e MC |
254 | { |
255 | if (a == NULL) | |
256 | return (0); | |
257 | if (a->shutdown) { | |
258 | if (a->init) { | |
259 | SHUTDOWN2(a->num); | |
260 | } | |
261 | a->init = 0; | |
262 | a->flags = 0; | |
263 | } | |
264 | return (1); | |
265 | } | |
eb38b26d DSH |
266 | |
267 | static void dgram_adjust_rcv_timeout(BIO *b) | |
0f113f3e MC |
268 | { |
269 | # if defined(SO_RCVTIMEO) | |
270 | bio_dgram_data *data = (bio_dgram_data *)b->ptr; | |
271 | union { | |
272 | size_t s; | |
273 | int i; | |
274 | } sz = { | |
275 | 0 | |
276 | }; | |
277 | ||
278 | /* Is a timer active? */ | |
279 | if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) { | |
280 | struct timeval timenow, timeleft; | |
281 | ||
282 | /* Read current socket timeout */ | |
283 | # ifdef OPENSSL_SYS_WINDOWS | |
284 | int timeout; | |
285 | ||
286 | sz.i = sizeof(timeout); | |
287 | if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
288 | (void *)&timeout, &sz.i) < 0) { | |
289 | perror("getsockopt"); | |
290 | } else { | |
291 | data->socket_timeout.tv_sec = timeout / 1000; | |
292 | data->socket_timeout.tv_usec = (timeout % 1000) * 1000; | |
293 | } | |
294 | # else | |
295 | sz.i = sizeof(data->socket_timeout); | |
296 | if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
297 | &(data->socket_timeout), (void *)&sz) < 0) { | |
298 | perror("getsockopt"); | |
299 | } else if (sizeof(sz.s) != sizeof(sz.i) && sz.i == 0) | |
300 | OPENSSL_assert(sz.s <= sizeof(data->socket_timeout)); | |
301 | # endif | |
eb38b26d | 302 | |
0f113f3e MC |
303 | /* Get current time */ |
304 | get_current_time(&timenow); | |
305 | ||
306 | /* Calculate time left until timer expires */ | |
307 | memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval)); | |
fc52ac90 MC |
308 | if (timeleft.tv_usec < timenow.tv_usec) { |
309 | timeleft.tv_usec = 1000000 - timenow.tv_usec + timeleft.tv_usec; | |
0f113f3e | 310 | timeleft.tv_sec--; |
fc52ac90 MC |
311 | } else { |
312 | timeleft.tv_usec -= timenow.tv_usec; | |
0f113f3e | 313 | } |
fc52ac90 | 314 | if (timeleft.tv_sec < timenow.tv_sec) { |
0f113f3e MC |
315 | timeleft.tv_sec = 0; |
316 | timeleft.tv_usec = 1; | |
fc52ac90 MC |
317 | } else { |
318 | timeleft.tv_sec -= timenow.tv_sec; | |
0f113f3e MC |
319 | } |
320 | ||
321 | /* | |
322 | * Adjust socket timeout if next handhake message timer will expire | |
323 | * earlier. | |
324 | */ | |
325 | if ((data->socket_timeout.tv_sec == 0 | |
326 | && data->socket_timeout.tv_usec == 0) | |
327 | || (data->socket_timeout.tv_sec > timeleft.tv_sec) | |
328 | || (data->socket_timeout.tv_sec == timeleft.tv_sec | |
329 | && data->socket_timeout.tv_usec >= timeleft.tv_usec)) { | |
330 | # ifdef OPENSSL_SYS_WINDOWS | |
331 | timeout = timeleft.tv_sec * 1000 + timeleft.tv_usec / 1000; | |
332 | if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
333 | (void *)&timeout, sizeof(timeout)) < 0) { | |
334 | perror("setsockopt"); | |
335 | } | |
336 | # else | |
337 | if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &timeleft, | |
338 | sizeof(struct timeval)) < 0) { | |
339 | perror("setsockopt"); | |
340 | } | |
341 | # endif | |
342 | } | |
343 | } | |
344 | # endif | |
345 | } | |
eb38b26d DSH |
346 | |
347 | static void dgram_reset_rcv_timeout(BIO *b) | |
0f113f3e MC |
348 | { |
349 | # if defined(SO_RCVTIMEO) | |
350 | bio_dgram_data *data = (bio_dgram_data *)b->ptr; | |
351 | ||
352 | /* Is a timer active? */ | |
353 | if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) { | |
354 | # ifdef OPENSSL_SYS_WINDOWS | |
355 | int timeout = data->socket_timeout.tv_sec * 1000 + | |
356 | data->socket_timeout.tv_usec / 1000; | |
357 | if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
358 | (void *)&timeout, sizeof(timeout)) < 0) { | |
359 | perror("setsockopt"); | |
360 | } | |
361 | # else | |
362 | if (setsockopt | |
363 | (b->num, SOL_SOCKET, SO_RCVTIMEO, &(data->socket_timeout), | |
364 | sizeof(struct timeval)) < 0) { | |
365 | perror("setsockopt"); | |
366 | } | |
367 | # endif | |
368 | } | |
369 | # endif | |
370 | } | |
eb38b26d | 371 | |
36d16f8e | 372 | static int dgram_read(BIO *b, char *out, int outl) |
0f113f3e MC |
373 | { |
374 | int ret = 0; | |
375 | bio_dgram_data *data = (bio_dgram_data *)b->ptr; | |
376 | ||
377 | struct { | |
378 | /* | |
379 | * See commentary in b_sock.c. <appro> | |
380 | */ | |
381 | union { | |
382 | size_t s; | |
383 | int i; | |
384 | } len; | |
385 | union { | |
386 | struct sockaddr sa; | |
387 | struct sockaddr_in sa_in; | |
388 | # if OPENSSL_USE_IPV6 | |
389 | struct sockaddr_in6 sa_in6; | |
390 | # endif | |
391 | } peer; | |
392 | } sa; | |
393 | ||
394 | sa.len.s = 0; | |
395 | sa.len.i = sizeof(sa.peer); | |
396 | ||
397 | if (out != NULL) { | |
398 | clear_socket_error(); | |
16f8d4eb | 399 | memset(&sa.peer, 0, sizeof(sa.peer)); |
0f113f3e MC |
400 | dgram_adjust_rcv_timeout(b); |
401 | ret = recvfrom(b->num, out, outl, 0, &sa.peer.sa, (void *)&sa.len); | |
402 | if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) { | |
403 | OPENSSL_assert(sa.len.s <= sizeof(sa.peer)); | |
404 | sa.len.i = (int)sa.len.s; | |
405 | } | |
406 | ||
407 | if (!data->connected && ret >= 0) | |
408 | BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &sa.peer); | |
409 | ||
410 | BIO_clear_retry_flags(b); | |
411 | if (ret < 0) { | |
412 | if (BIO_dgram_should_retry(ret)) { | |
413 | BIO_set_retry_read(b); | |
414 | data->_errno = get_last_socket_error(); | |
415 | } | |
416 | } | |
417 | ||
418 | dgram_reset_rcv_timeout(b); | |
419 | } | |
420 | return (ret); | |
421 | } | |
36d16f8e BL |
422 | |
423 | static int dgram_write(BIO *b, const char *in, int inl) | |
0f113f3e MC |
424 | { |
425 | int ret; | |
426 | bio_dgram_data *data = (bio_dgram_data *)b->ptr; | |
427 | clear_socket_error(); | |
428 | ||
429 | if (data->connected) | |
430 | ret = writesocket(b->num, in, inl); | |
431 | else { | |
432 | int peerlen = sizeof(data->peer); | |
433 | ||
434 | if (data->peer.sa.sa_family == AF_INET) | |
435 | peerlen = sizeof(data->peer.sa_in); | |
436 | # if OPENSSL_USE_IPV6 | |
437 | else if (data->peer.sa.sa_family == AF_INET6) | |
438 | peerlen = sizeof(data->peer.sa_in6); | |
439 | # endif | |
440 | # if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK) | |
441 | ret = sendto(b->num, (char *)in, inl, 0, &data->peer.sa, peerlen); | |
442 | # else | |
443 | ret = sendto(b->num, in, inl, 0, &data->peer.sa, peerlen); | |
444 | # endif | |
445 | } | |
446 | ||
447 | BIO_clear_retry_flags(b); | |
448 | if (ret <= 0) { | |
449 | if (BIO_dgram_should_retry(ret)) { | |
450 | BIO_set_retry_write(b); | |
451 | data->_errno = get_last_socket_error(); | |
0f113f3e MC |
452 | } |
453 | } | |
454 | return (ret); | |
455 | } | |
36d16f8e | 456 | |
0d3ae34d | 457 | static long dgram_get_mtu_overhead(bio_dgram_data *data) |
0f113f3e MC |
458 | { |
459 | long ret; | |
460 | ||
461 | switch (data->peer.sa.sa_family) { | |
462 | case AF_INET: | |
463 | /* | |
464 | * Assume this is UDP - 20 bytes for IP, 8 bytes for UDP | |
465 | */ | |
466 | ret = 28; | |
467 | break; | |
468 | # if OPENSSL_USE_IPV6 | |
469 | case AF_INET6: | |
470 | # ifdef IN6_IS_ADDR_V4MAPPED | |
471 | if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr)) | |
472 | /* | |
473 | * Assume this is UDP - 20 bytes for IP, 8 bytes for UDP | |
474 | */ | |
475 | ret = 28; | |
476 | else | |
477 | # endif | |
478 | /* | |
479 | * Assume this is UDP - 40 bytes for IP, 8 bytes for UDP | |
480 | */ | |
481 | ret = 48; | |
482 | break; | |
483 | # endif | |
484 | default: | |
485 | /* We don't know. Go with the historical default */ | |
486 | ret = 28; | |
487 | break; | |
488 | } | |
489 | return ret; | |
490 | } | |
0d3ae34d | 491 | |
36d16f8e | 492 | static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) |
0f113f3e MC |
493 | { |
494 | long ret = 1; | |
495 | int *ip; | |
496 | struct sockaddr *to = NULL; | |
497 | bio_dgram_data *data = NULL; | |
498 | int sockopt_val = 0; | |
499 | # if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU)) | |
500 | socklen_t sockopt_len; /* assume that system supporting IP_MTU is | |
501 | * modern enough to define socklen_t */ | |
502 | socklen_t addr_len; | |
503 | union { | |
504 | struct sockaddr sa; | |
505 | struct sockaddr_in s4; | |
506 | # if OPENSSL_USE_IPV6 | |
507 | struct sockaddr_in6 s6; | |
508 | # endif | |
509 | } addr; | |
510 | # endif | |
36d16f8e | 511 | |
0f113f3e MC |
512 | data = (bio_dgram_data *)b->ptr; |
513 | ||
514 | switch (cmd) { | |
515 | case BIO_CTRL_RESET: | |
516 | num = 0; | |
517 | case BIO_C_FILE_SEEK: | |
518 | ret = 0; | |
519 | break; | |
520 | case BIO_C_FILE_TELL: | |
521 | case BIO_CTRL_INFO: | |
522 | ret = 0; | |
523 | break; | |
524 | case BIO_C_SET_FD: | |
525 | dgram_clear(b); | |
526 | b->num = *((int *)ptr); | |
527 | b->shutdown = (int)num; | |
528 | b->init = 1; | |
529 | break; | |
530 | case BIO_C_GET_FD: | |
531 | if (b->init) { | |
532 | ip = (int *)ptr; | |
533 | if (ip != NULL) | |
534 | *ip = b->num; | |
535 | ret = b->num; | |
536 | } else | |
537 | ret = -1; | |
538 | break; | |
539 | case BIO_CTRL_GET_CLOSE: | |
540 | ret = b->shutdown; | |
541 | break; | |
542 | case BIO_CTRL_SET_CLOSE: | |
543 | b->shutdown = (int)num; | |
544 | break; | |
545 | case BIO_CTRL_PENDING: | |
546 | case BIO_CTRL_WPENDING: | |
547 | ret = 0; | |
548 | break; | |
549 | case BIO_CTRL_DUP: | |
550 | case BIO_CTRL_FLUSH: | |
551 | ret = 1; | |
552 | break; | |
553 | case BIO_CTRL_DGRAM_CONNECT: | |
554 | to = (struct sockaddr *)ptr; | |
4d428cd2 RS |
555 | switch (to->sa_family) { |
556 | case AF_INET: | |
557 | memcpy(&data->peer, to, sizeof(data->peer.sa_in)); | |
558 | break; | |
0f113f3e | 559 | # if OPENSSL_USE_IPV6 |
4d428cd2 RS |
560 | case AF_INET6: |
561 | memcpy(&data->peer, to, sizeof(data->peer.sa_in6)); | |
562 | break; | |
0f113f3e | 563 | # endif |
4d428cd2 RS |
564 | default: |
565 | memcpy(&data->peer, to, sizeof(data->peer.sa)); | |
566 | break; | |
0f113f3e | 567 | } |
0f113f3e MC |
568 | break; |
569 | /* (Linux)kernel sets DF bit on outgoing IP packets */ | |
570 | case BIO_CTRL_DGRAM_MTU_DISCOVER: | |
571 | # if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO) | |
572 | addr_len = (socklen_t) sizeof(addr); | |
16f8d4eb | 573 | memset(&addr, 0, sizeof(addr)); |
0f113f3e MC |
574 | if (getsockname(b->num, &addr.sa, &addr_len) < 0) { |
575 | ret = 0; | |
576 | break; | |
577 | } | |
578 | switch (addr.sa.sa_family) { | |
579 | case AF_INET: | |
580 | sockopt_val = IP_PMTUDISC_DO; | |
581 | if ((ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER, | |
582 | &sockopt_val, sizeof(sockopt_val))) < 0) | |
583 | perror("setsockopt"); | |
584 | break; | |
585 | # if OPENSSL_USE_IPV6 && defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO) | |
586 | case AF_INET6: | |
587 | sockopt_val = IPV6_PMTUDISC_DO; | |
588 | if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER, | |
589 | &sockopt_val, sizeof(sockopt_val))) < 0) | |
590 | perror("setsockopt"); | |
591 | break; | |
592 | # endif | |
593 | default: | |
594 | ret = -1; | |
595 | break; | |
596 | } | |
597 | # else | |
598 | ret = -1; | |
599 | # endif | |
600 | break; | |
601 | case BIO_CTRL_DGRAM_QUERY_MTU: | |
602 | # if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU) | |
603 | addr_len = (socklen_t) sizeof(addr); | |
16f8d4eb | 604 | memset(&addr, 0, sizeof(addr)); |
0f113f3e MC |
605 | if (getsockname(b->num, &addr.sa, &addr_len) < 0) { |
606 | ret = 0; | |
607 | break; | |
608 | } | |
609 | sockopt_len = sizeof(sockopt_val); | |
610 | switch (addr.sa.sa_family) { | |
611 | case AF_INET: | |
612 | if ((ret = | |
613 | getsockopt(b->num, IPPROTO_IP, IP_MTU, (void *)&sockopt_val, | |
614 | &sockopt_len)) < 0 || sockopt_val < 0) { | |
615 | ret = 0; | |
616 | } else { | |
617 | /* | |
618 | * we assume that the transport protocol is UDP and no IP | |
619 | * options are used. | |
620 | */ | |
621 | data->mtu = sockopt_val - 8 - 20; | |
622 | ret = data->mtu; | |
623 | } | |
624 | break; | |
625 | # if OPENSSL_USE_IPV6 && defined(IPV6_MTU) | |
626 | case AF_INET6: | |
627 | if ((ret = | |
628 | getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU, | |
629 | (void *)&sockopt_val, &sockopt_len)) < 0 | |
630 | || sockopt_val < 0) { | |
631 | ret = 0; | |
632 | } else { | |
633 | /* | |
634 | * we assume that the transport protocol is UDP and no IPV6 | |
635 | * options are used. | |
636 | */ | |
637 | data->mtu = sockopt_val - 8 - 40; | |
638 | ret = data->mtu; | |
639 | } | |
640 | break; | |
641 | # endif | |
642 | default: | |
643 | ret = 0; | |
644 | break; | |
645 | } | |
646 | # else | |
647 | ret = 0; | |
648 | # endif | |
649 | break; | |
650 | case BIO_CTRL_DGRAM_GET_FALLBACK_MTU: | |
651 | ret = -dgram_get_mtu_overhead(data); | |
652 | switch (data->peer.sa.sa_family) { | |
653 | case AF_INET: | |
654 | ret += 576; | |
655 | break; | |
656 | # if OPENSSL_USE_IPV6 | |
657 | case AF_INET6: | |
658 | # ifdef IN6_IS_ADDR_V4MAPPED | |
659 | if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr)) | |
660 | ret += 576; | |
661 | else | |
662 | # endif | |
663 | ret += 1280; | |
664 | break; | |
665 | # endif | |
666 | default: | |
667 | ret += 576; | |
668 | break; | |
669 | } | |
670 | break; | |
671 | case BIO_CTRL_DGRAM_GET_MTU: | |
672 | return data->mtu; | |
0f113f3e MC |
673 | case BIO_CTRL_DGRAM_SET_MTU: |
674 | data->mtu = num; | |
675 | ret = num; | |
676 | break; | |
677 | case BIO_CTRL_DGRAM_SET_CONNECTED: | |
678 | to = (struct sockaddr *)ptr; | |
679 | ||
680 | if (to != NULL) { | |
681 | data->connected = 1; | |
682 | switch (to->sa_family) { | |
683 | case AF_INET: | |
684 | memcpy(&data->peer, to, sizeof(data->peer.sa_in)); | |
685 | break; | |
686 | # if OPENSSL_USE_IPV6 | |
687 | case AF_INET6: | |
688 | memcpy(&data->peer, to, sizeof(data->peer.sa_in6)); | |
689 | break; | |
690 | # endif | |
691 | default: | |
692 | memcpy(&data->peer, to, sizeof(data->peer.sa)); | |
693 | break; | |
694 | } | |
695 | } else { | |
696 | data->connected = 0; | |
16f8d4eb | 697 | memset(&data->peer, 0, sizeof(data->peer)); |
0f113f3e MC |
698 | } |
699 | break; | |
700 | case BIO_CTRL_DGRAM_GET_PEER: | |
701 | switch (data->peer.sa.sa_family) { | |
702 | case AF_INET: | |
703 | ret = sizeof(data->peer.sa_in); | |
704 | break; | |
705 | # if OPENSSL_USE_IPV6 | |
706 | case AF_INET6: | |
707 | ret = sizeof(data->peer.sa_in6); | |
708 | break; | |
709 | # endif | |
710 | default: | |
711 | ret = sizeof(data->peer.sa); | |
712 | break; | |
713 | } | |
714 | if (num == 0 || num > ret) | |
715 | num = ret; | |
716 | memcpy(ptr, &data->peer, (ret = num)); | |
717 | break; | |
718 | case BIO_CTRL_DGRAM_SET_PEER: | |
719 | to = (struct sockaddr *)ptr; | |
720 | switch (to->sa_family) { | |
721 | case AF_INET: | |
722 | memcpy(&data->peer, to, sizeof(data->peer.sa_in)); | |
723 | break; | |
724 | # if OPENSSL_USE_IPV6 | |
725 | case AF_INET6: | |
726 | memcpy(&data->peer, to, sizeof(data->peer.sa_in6)); | |
727 | break; | |
728 | # endif | |
729 | default: | |
730 | memcpy(&data->peer, to, sizeof(data->peer.sa)); | |
731 | break; | |
732 | } | |
733 | break; | |
734 | case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT: | |
735 | memcpy(&(data->next_timeout), ptr, sizeof(struct timeval)); | |
736 | break; | |
737 | # if defined(SO_RCVTIMEO) | |
738 | case BIO_CTRL_DGRAM_SET_RECV_TIMEOUT: | |
739 | # ifdef OPENSSL_SYS_WINDOWS | |
740 | { | |
741 | struct timeval *tv = (struct timeval *)ptr; | |
742 | int timeout = tv->tv_sec * 1000 + tv->tv_usec / 1000; | |
743 | if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
744 | (void *)&timeout, sizeof(timeout)) < 0) { | |
745 | perror("setsockopt"); | |
746 | ret = -1; | |
747 | } | |
748 | } | |
749 | # else | |
750 | if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, ptr, | |
751 | sizeof(struct timeval)) < 0) { | |
752 | perror("setsockopt"); | |
753 | ret = -1; | |
754 | } | |
755 | # endif | |
756 | break; | |
757 | case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT: | |
758 | { | |
759 | union { | |
760 | size_t s; | |
761 | int i; | |
762 | } sz = { | |
763 | 0 | |
764 | }; | |
765 | # ifdef OPENSSL_SYS_WINDOWS | |
766 | int timeout; | |
767 | struct timeval *tv = (struct timeval *)ptr; | |
768 | ||
769 | sz.i = sizeof(timeout); | |
770 | if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
771 | (void *)&timeout, &sz.i) < 0) { | |
772 | perror("getsockopt"); | |
773 | ret = -1; | |
774 | } else { | |
775 | tv->tv_sec = timeout / 1000; | |
776 | tv->tv_usec = (timeout % 1000) * 1000; | |
777 | ret = sizeof(*tv); | |
778 | } | |
779 | # else | |
780 | sz.i = sizeof(struct timeval); | |
781 | if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, | |
782 | ptr, (void *)&sz) < 0) { | |
783 | perror("getsockopt"); | |
784 | ret = -1; | |
785 | } else if (sizeof(sz.s) != sizeof(sz.i) && sz.i == 0) { | |
786 | OPENSSL_assert(sz.s <= sizeof(struct timeval)); | |
787 | ret = (int)sz.s; | |
788 | } else | |
789 | ret = sz.i; | |
790 | # endif | |
791 | } | |
792 | break; | |
793 | # endif | |
794 | # if defined(SO_SNDTIMEO) | |
795 | case BIO_CTRL_DGRAM_SET_SEND_TIMEOUT: | |
796 | # ifdef OPENSSL_SYS_WINDOWS | |
797 | { | |
798 | struct timeval *tv = (struct timeval *)ptr; | |
799 | int timeout = tv->tv_sec * 1000 + tv->tv_usec / 1000; | |
800 | if (setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, | |
801 | (void *)&timeout, sizeof(timeout)) < 0) { | |
802 | perror("setsockopt"); | |
803 | ret = -1; | |
804 | } | |
805 | } | |
806 | # else | |
807 | if (setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, ptr, | |
808 | sizeof(struct timeval)) < 0) { | |
809 | perror("setsockopt"); | |
810 | ret = -1; | |
811 | } | |
812 | # endif | |
813 | break; | |
814 | case BIO_CTRL_DGRAM_GET_SEND_TIMEOUT: | |
815 | { | |
816 | union { | |
817 | size_t s; | |
818 | int i; | |
819 | } sz = { | |
820 | 0 | |
821 | }; | |
822 | # ifdef OPENSSL_SYS_WINDOWS | |
823 | int timeout; | |
824 | struct timeval *tv = (struct timeval *)ptr; | |
825 | ||
826 | sz.i = sizeof(timeout); | |
827 | if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, | |
828 | (void *)&timeout, &sz.i) < 0) { | |
829 | perror("getsockopt"); | |
830 | ret = -1; | |
831 | } else { | |
832 | tv->tv_sec = timeout / 1000; | |
833 | tv->tv_usec = (timeout % 1000) * 1000; | |
834 | ret = sizeof(*tv); | |
835 | } | |
836 | # else | |
837 | sz.i = sizeof(struct timeval); | |
838 | if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, | |
839 | ptr, (void *)&sz) < 0) { | |
840 | perror("getsockopt"); | |
841 | ret = -1; | |
842 | } else if (sizeof(sz.s) != sizeof(sz.i) && sz.i == 0) { | |
843 | OPENSSL_assert(sz.s <= sizeof(struct timeval)); | |
844 | ret = (int)sz.s; | |
845 | } else | |
846 | ret = sz.i; | |
847 | # endif | |
848 | } | |
849 | break; | |
850 | # endif | |
851 | case BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP: | |
852 | /* fall-through */ | |
853 | case BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP: | |
854 | # ifdef OPENSSL_SYS_WINDOWS | |
855 | if (data->_errno == WSAETIMEDOUT) | |
856 | # else | |
857 | if (data->_errno == EAGAIN) | |
858 | # endif | |
859 | { | |
860 | ret = 1; | |
861 | data->_errno = 0; | |
862 | } else | |
863 | ret = 0; | |
864 | break; | |
865 | # ifdef EMSGSIZE | |
866 | case BIO_CTRL_DGRAM_MTU_EXCEEDED: | |
867 | if (data->_errno == EMSGSIZE) { | |
868 | ret = 1; | |
869 | data->_errno = 0; | |
870 | } else | |
871 | ret = 0; | |
872 | break; | |
873 | # endif | |
874 | case BIO_CTRL_DGRAM_SET_DONT_FRAG: | |
875 | sockopt_val = num ? 1 : 0; | |
876 | ||
877 | switch (data->peer.sa.sa_family) { | |
878 | case AF_INET: | |
879 | # if defined(IP_DONTFRAG) | |
880 | if ((ret = setsockopt(b->num, IPPROTO_IP, IP_DONTFRAG, | |
881 | &sockopt_val, sizeof(sockopt_val))) < 0) { | |
882 | perror("setsockopt"); | |
883 | ret = -1; | |
884 | } | |
133dce44 | 885 | # elif defined(OPENSSL_SYS_LINUX) && defined(IP_MTU_DISCOVER) && defined (IP_PMTUDISC_PROBE) |
0f113f3e MC |
886 | if ((sockopt_val = num ? IP_PMTUDISC_PROBE : IP_PMTUDISC_DONT), |
887 | (ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER, | |
888 | &sockopt_val, sizeof(sockopt_val))) < 0) { | |
889 | perror("setsockopt"); | |
890 | ret = -1; | |
891 | } | |
892 | # elif defined(OPENSSL_SYS_WINDOWS) && defined(IP_DONTFRAGMENT) | |
893 | if ((ret = setsockopt(b->num, IPPROTO_IP, IP_DONTFRAGMENT, | |
894 | (const char *)&sockopt_val, | |
895 | sizeof(sockopt_val))) < 0) { | |
896 | perror("setsockopt"); | |
897 | ret = -1; | |
898 | } | |
899 | # else | |
900 | ret = -1; | |
901 | # endif | |
902 | break; | |
903 | # if OPENSSL_USE_IPV6 | |
904 | case AF_INET6: | |
905 | # if defined(IPV6_DONTFRAG) | |
906 | if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_DONTFRAG, | |
907 | (const void *)&sockopt_val, | |
908 | sizeof(sockopt_val))) < 0) { | |
909 | perror("setsockopt"); | |
910 | ret = -1; | |
911 | } | |
912 | # elif defined(OPENSSL_SYS_LINUX) && defined(IPV6_MTUDISCOVER) | |
913 | if ((sockopt_val = num ? IP_PMTUDISC_PROBE : IP_PMTUDISC_DONT), | |
914 | (ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER, | |
915 | &sockopt_val, sizeof(sockopt_val))) < 0) { | |
916 | perror("setsockopt"); | |
917 | ret = -1; | |
918 | } | |
919 | # else | |
920 | ret = -1; | |
921 | # endif | |
922 | break; | |
923 | # endif | |
924 | default: | |
925 | ret = -1; | |
926 | break; | |
927 | } | |
928 | break; | |
929 | case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD: | |
930 | ret = dgram_get_mtu_overhead(data); | |
931 | break; | |
932 | default: | |
933 | ret = 0; | |
934 | break; | |
935 | } | |
936 | return (ret); | |
937 | } | |
36d16f8e BL |
938 | |
939 | static int dgram_puts(BIO *bp, const char *str) | |
0f113f3e MC |
940 | { |
941 | int n, ret; | |
36d16f8e | 942 | |
0f113f3e MC |
943 | n = strlen(str); |
944 | ret = dgram_write(bp, str, n); | |
945 | return (ret); | |
946 | } | |
36d16f8e | 947 | |
0f113f3e | 948 | # ifndef OPENSSL_NO_SCTP |
7e159e01 | 949 | BIO_METHOD *BIO_s_datagram_sctp(void) |
0f113f3e MC |
950 | { |
951 | return (&methods_dgramp_sctp); | |
952 | } | |
7e159e01 DSH |
953 | |
954 | BIO *BIO_new_dgram_sctp(int fd, int close_flag) | |
0f113f3e MC |
955 | { |
956 | BIO *bio; | |
957 | int ret, optval = 20000; | |
958 | int auth_data = 0, auth_forward = 0; | |
959 | unsigned char *p; | |
960 | struct sctp_authchunk auth; | |
961 | struct sctp_authchunks *authchunks; | |
962 | socklen_t sockopt_len; | |
963 | # ifdef SCTP_AUTHENTICATION_EVENT | |
964 | # ifdef SCTP_EVENT | |
965 | struct sctp_event event; | |
966 | # else | |
967 | struct sctp_event_subscribe event; | |
968 | # endif | |
969 | # endif | |
7e159e01 | 970 | |
0f113f3e MC |
971 | bio = BIO_new(BIO_s_datagram_sctp()); |
972 | if (bio == NULL) | |
973 | return (NULL); | |
974 | BIO_set_fd(bio, fd, close_flag); | |
975 | ||
976 | /* Activate SCTP-AUTH for DATA and FORWARD-TSN chunks */ | |
977 | auth.sauth_chunk = OPENSSL_SCTP_DATA_CHUNK_TYPE; | |
978 | ret = | |
979 | setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, | |
980 | sizeof(struct sctp_authchunk)); | |
981 | if (ret < 0) { | |
982 | BIO_vfree(bio); | |
983 | return (NULL); | |
984 | } | |
985 | auth.sauth_chunk = OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE; | |
986 | ret = | |
987 | setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, | |
988 | sizeof(struct sctp_authchunk)); | |
989 | if (ret < 0) { | |
990 | BIO_vfree(bio); | |
991 | return (NULL); | |
992 | } | |
993 | ||
994 | /* | |
995 | * Test if activation was successful. When using accept(), SCTP-AUTH has | |
996 | * to be activated for the listening socket already, otherwise the | |
997 | * connected socket won't use it. | |
998 | */ | |
999 | sockopt_len = (socklen_t) (sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t)); | |
1000 | authchunks = OPENSSL_malloc(sockopt_len); | |
61986d32 | 1001 | if (!authchunks) { |
918bb865 MC |
1002 | BIO_vfree(bio); |
1003 | return (NULL); | |
1004 | } | |
0f113f3e MC |
1005 | memset(authchunks, 0, sockopt_len); |
1006 | ret = | |
1007 | getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks, | |
1008 | &sockopt_len); | |
1009 | ||
1010 | if (ret < 0) { | |
1011 | OPENSSL_free(authchunks); | |
1012 | BIO_vfree(bio); | |
1013 | return (NULL); | |
1014 | } | |
1015 | ||
1016 | for (p = (unsigned char *)authchunks->gauth_chunks; | |
1017 | p < (unsigned char *)authchunks + sockopt_len; | |
1018 | p += sizeof(uint8_t)) { | |
1019 | if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) | |
1020 | auth_data = 1; | |
1021 | if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) | |
1022 | auth_forward = 1; | |
1023 | } | |
1024 | ||
1025 | OPENSSL_free(authchunks); | |
1026 | ||
1027 | OPENSSL_assert(auth_data); | |
1028 | OPENSSL_assert(auth_forward); | |
1029 | ||
1030 | # ifdef SCTP_AUTHENTICATION_EVENT | |
1031 | # ifdef SCTP_EVENT | |
16f8d4eb | 1032 | memset(&event, 0, sizeof(event)); |
0f113f3e MC |
1033 | event.se_assoc_id = 0; |
1034 | event.se_type = SCTP_AUTHENTICATION_EVENT; | |
1035 | event.se_on = 1; | |
1036 | ret = | |
1037 | setsockopt(fd, IPPROTO_SCTP, SCTP_EVENT, &event, | |
1038 | sizeof(struct sctp_event)); | |
1039 | if (ret < 0) { | |
1040 | BIO_vfree(bio); | |
1041 | return (NULL); | |
1042 | } | |
1043 | # else | |
1044 | sockopt_len = (socklen_t) sizeof(struct sctp_event_subscribe); | |
1045 | ret = getsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, &sockopt_len); | |
1046 | if (ret < 0) { | |
1047 | BIO_vfree(bio); | |
1048 | return (NULL); | |
1049 | } | |
1050 | ||
1051 | event.sctp_authentication_event = 1; | |
1052 | ||
1053 | ret = | |
1054 | setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1055 | sizeof(struct sctp_event_subscribe)); | |
1056 | if (ret < 0) { | |
1057 | BIO_vfree(bio); | |
1058 | return (NULL); | |
1059 | } | |
1060 | # endif | |
1061 | # endif | |
7e159e01 | 1062 | |
0f113f3e MC |
1063 | /* |
1064 | * Disable partial delivery by setting the min size larger than the max | |
1065 | * record size of 2^14 + 2048 + 13 | |
1066 | */ | |
1067 | ret = | |
1068 | setsockopt(fd, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT, &optval, | |
1069 | sizeof(optval)); | |
1070 | if (ret < 0) { | |
1071 | BIO_vfree(bio); | |
1072 | return (NULL); | |
1073 | } | |
1074 | ||
1075 | return (bio); | |
1076 | } | |
7e159e01 DSH |
1077 | |
1078 | int BIO_dgram_is_sctp(BIO *bio) | |
0f113f3e MC |
1079 | { |
1080 | return (BIO_method_type(bio) == BIO_TYPE_DGRAM_SCTP); | |
1081 | } | |
7e159e01 DSH |
1082 | |
1083 | static int dgram_sctp_new(BIO *bi) | |
0f113f3e MC |
1084 | { |
1085 | bio_dgram_sctp_data *data = NULL; | |
1086 | ||
1087 | bi->init = 0; | |
1088 | bi->num = 0; | |
b4faea50 | 1089 | data = OPENSSL_malloc(sizeof(*data)); |
0f113f3e MC |
1090 | if (data == NULL) |
1091 | return 0; | |
16f8d4eb | 1092 | memset(data, 0, sizeof(*data)); |
0f113f3e MC |
1093 | # ifdef SCTP_PR_SCTP_NONE |
1094 | data->prinfo.pr_policy = SCTP_PR_SCTP_NONE; | |
1095 | # endif | |
7e159e01 DSH |
1096 | bi->ptr = data; |
1097 | ||
0f113f3e MC |
1098 | bi->flags = 0; |
1099 | return (1); | |
1100 | } | |
7e159e01 DSH |
1101 | |
1102 | static int dgram_sctp_free(BIO *a) | |
0f113f3e MC |
1103 | { |
1104 | bio_dgram_sctp_data *data; | |
7e159e01 | 1105 | |
0f113f3e MC |
1106 | if (a == NULL) |
1107 | return (0); | |
1108 | if (!dgram_clear(a)) | |
1109 | return 0; | |
7e159e01 | 1110 | |
0f113f3e MC |
1111 | data = (bio_dgram_sctp_data *) a->ptr; |
1112 | if (data != NULL) { | |
b548a1f1 | 1113 | OPENSSL_free(data->saved_message.data); |
0f113f3e MC |
1114 | OPENSSL_free(data); |
1115 | } | |
1116 | ||
1117 | return (1); | |
1118 | } | |
7e159e01 | 1119 | |
0f113f3e MC |
1120 | # ifdef SCTP_AUTHENTICATION_EVENT |
1121 | void dgram_sctp_handle_auth_free_key_event(BIO *b, | |
1122 | union sctp_notification *snp) | |
1123 | { | |
1124 | int ret; | |
1125 | struct sctp_authkey_event *authkeyevent = &snp->sn_auth_event; | |
1126 | ||
1127 | if (authkeyevent->auth_indication == SCTP_AUTH_FREE_KEY) { | |
1128 | struct sctp_authkeyid authkeyid; | |
1129 | ||
1130 | /* delete key */ | |
1131 | authkeyid.scact_keynumber = authkeyevent->auth_keynumber; | |
1132 | ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DELETE_KEY, | |
1133 | &authkeyid, sizeof(struct sctp_authkeyid)); | |
1134 | } | |
1135 | } | |
1136 | # endif | |
1137 | ||
1138 | static int dgram_sctp_read(BIO *b, char *out, int outl) | |
1139 | { | |
1140 | int ret = 0, n = 0, i, optval; | |
1141 | socklen_t optlen; | |
1142 | bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr; | |
1143 | union sctp_notification *snp; | |
1144 | struct msghdr msg; | |
1145 | struct iovec iov; | |
1146 | struct cmsghdr *cmsg; | |
1147 | char cmsgbuf[512]; | |
1148 | ||
1149 | if (out != NULL) { | |
1150 | clear_socket_error(); | |
1151 | ||
1152 | do { | |
16f8d4eb | 1153 | memset(&data->rcvinfo, 0, sizeof(data->rcvinfo)); |
0f113f3e MC |
1154 | iov.iov_base = out; |
1155 | iov.iov_len = outl; | |
1156 | msg.msg_name = NULL; | |
1157 | msg.msg_namelen = 0; | |
1158 | msg.msg_iov = &iov; | |
1159 | msg.msg_iovlen = 1; | |
1160 | msg.msg_control = cmsgbuf; | |
1161 | msg.msg_controllen = 512; | |
1162 | msg.msg_flags = 0; | |
1163 | n = recvmsg(b->num, &msg, 0); | |
1164 | ||
1165 | if (n <= 0) { | |
1166 | if (n < 0) | |
1167 | ret = n; | |
1168 | break; | |
1169 | } | |
1170 | ||
1171 | if (msg.msg_controllen > 0) { | |
1172 | for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; | |
1173 | cmsg = CMSG_NXTHDR(&msg, cmsg)) { | |
1174 | if (cmsg->cmsg_level != IPPROTO_SCTP) | |
1175 | continue; | |
1176 | # ifdef SCTP_RCVINFO | |
1177 | if (cmsg->cmsg_type == SCTP_RCVINFO) { | |
1178 | struct sctp_rcvinfo *rcvinfo; | |
1179 | ||
1180 | rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg); | |
1181 | data->rcvinfo.rcv_sid = rcvinfo->rcv_sid; | |
1182 | data->rcvinfo.rcv_ssn = rcvinfo->rcv_ssn; | |
1183 | data->rcvinfo.rcv_flags = rcvinfo->rcv_flags; | |
1184 | data->rcvinfo.rcv_ppid = rcvinfo->rcv_ppid; | |
1185 | data->rcvinfo.rcv_tsn = rcvinfo->rcv_tsn; | |
1186 | data->rcvinfo.rcv_cumtsn = rcvinfo->rcv_cumtsn; | |
1187 | data->rcvinfo.rcv_context = rcvinfo->rcv_context; | |
1188 | } | |
1189 | # endif | |
1190 | # ifdef SCTP_SNDRCV | |
1191 | if (cmsg->cmsg_type == SCTP_SNDRCV) { | |
1192 | struct sctp_sndrcvinfo *sndrcvinfo; | |
1193 | ||
1194 | sndrcvinfo = | |
1195 | (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg); | |
1196 | data->rcvinfo.rcv_sid = sndrcvinfo->sinfo_stream; | |
1197 | data->rcvinfo.rcv_ssn = sndrcvinfo->sinfo_ssn; | |
1198 | data->rcvinfo.rcv_flags = sndrcvinfo->sinfo_flags; | |
1199 | data->rcvinfo.rcv_ppid = sndrcvinfo->sinfo_ppid; | |
1200 | data->rcvinfo.rcv_tsn = sndrcvinfo->sinfo_tsn; | |
1201 | data->rcvinfo.rcv_cumtsn = sndrcvinfo->sinfo_cumtsn; | |
1202 | data->rcvinfo.rcv_context = sndrcvinfo->sinfo_context; | |
1203 | } | |
1204 | # endif | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | if (msg.msg_flags & MSG_NOTIFICATION) { | |
1209 | snp = (union sctp_notification *)out; | |
1210 | if (snp->sn_header.sn_type == SCTP_SENDER_DRY_EVENT) { | |
1211 | # ifdef SCTP_EVENT | |
1212 | struct sctp_event event; | |
1213 | # else | |
1214 | struct sctp_event_subscribe event; | |
1215 | socklen_t eventsize; | |
1216 | # endif | |
1217 | /* | |
1218 | * If a message has been delayed until the socket is dry, | |
1219 | * it can be sent now. | |
1220 | */ | |
1221 | if (data->saved_message.length > 0) { | |
1222 | dgram_sctp_write(data->saved_message.bio, | |
1223 | data->saved_message.data, | |
1224 | data->saved_message.length); | |
1225 | OPENSSL_free(data->saved_message.data); | |
1226 | data->saved_message.data = NULL; | |
1227 | data->saved_message.length = 0; | |
1228 | } | |
1229 | ||
1230 | /* disable sender dry event */ | |
1231 | # ifdef SCTP_EVENT | |
16f8d4eb | 1232 | memset(&event, 0, sizeof(event)); |
0f113f3e MC |
1233 | event.se_assoc_id = 0; |
1234 | event.se_type = SCTP_SENDER_DRY_EVENT; | |
1235 | event.se_on = 0; | |
1236 | i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, | |
1237 | sizeof(struct sctp_event)); | |
1238 | if (i < 0) { | |
1239 | ret = i; | |
1240 | break; | |
1241 | } | |
1242 | # else | |
1243 | eventsize = sizeof(struct sctp_event_subscribe); | |
1244 | i = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1245 | &eventsize); | |
1246 | if (i < 0) { | |
1247 | ret = i; | |
1248 | break; | |
1249 | } | |
1250 | ||
1251 | event.sctp_sender_dry_event = 0; | |
1252 | ||
1253 | i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1254 | sizeof(struct sctp_event_subscribe)); | |
1255 | if (i < 0) { | |
1256 | ret = i; | |
1257 | break; | |
1258 | } | |
1259 | # endif | |
1260 | } | |
1261 | # ifdef SCTP_AUTHENTICATION_EVENT | |
1262 | if (snp->sn_header.sn_type == SCTP_AUTHENTICATION_EVENT) | |
1263 | dgram_sctp_handle_auth_free_key_event(b, snp); | |
1264 | # endif | |
1265 | ||
1266 | if (data->handle_notifications != NULL) | |
1267 | data->handle_notifications(b, data->notification_context, | |
1268 | (void *)out); | |
1269 | ||
1270 | memset(out, 0, outl); | |
1271 | } else | |
1272 | ret += n; | |
1273 | } | |
1274 | while ((msg.msg_flags & MSG_NOTIFICATION) && (msg.msg_flags & MSG_EOR) | |
1275 | && (ret < outl)); | |
1276 | ||
1277 | if (ret > 0 && !(msg.msg_flags & MSG_EOR)) { | |
1278 | /* Partial message read, this should never happen! */ | |
1279 | ||
1280 | /* | |
1281 | * The buffer was too small, this means the peer sent a message | |
1282 | * that was larger than allowed. | |
1283 | */ | |
1284 | if (ret == outl) | |
1285 | return -1; | |
1286 | ||
1287 | /* | |
1288 | * Test if socket buffer can handle max record size (2^14 + 2048 | |
1289 | * + 13) | |
1290 | */ | |
1291 | optlen = (socklen_t) sizeof(int); | |
1292 | ret = getsockopt(b->num, SOL_SOCKET, SO_RCVBUF, &optval, &optlen); | |
1293 | if (ret >= 0) | |
1294 | OPENSSL_assert(optval >= 18445); | |
1295 | ||
1296 | /* | |
1297 | * Test if SCTP doesn't partially deliver below max record size | |
1298 | * (2^14 + 2048 + 13) | |
1299 | */ | |
1300 | optlen = (socklen_t) sizeof(int); | |
1301 | ret = | |
1302 | getsockopt(b->num, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT, | |
1303 | &optval, &optlen); | |
1304 | if (ret >= 0) | |
1305 | OPENSSL_assert(optval >= 18445); | |
1306 | ||
1307 | /* | |
1308 | * Partially delivered notification??? Probably a bug.... | |
1309 | */ | |
1310 | OPENSSL_assert(!(msg.msg_flags & MSG_NOTIFICATION)); | |
1311 | ||
1312 | /* | |
1313 | * Everything seems ok till now, so it's most likely a message | |
1314 | * dropped by PR-SCTP. | |
1315 | */ | |
1316 | memset(out, 0, outl); | |
1317 | BIO_set_retry_read(b); | |
1318 | return -1; | |
1319 | } | |
1320 | ||
1321 | BIO_clear_retry_flags(b); | |
1322 | if (ret < 0) { | |
1323 | if (BIO_dgram_should_retry(ret)) { | |
1324 | BIO_set_retry_read(b); | |
1325 | data->_errno = get_last_socket_error(); | |
1326 | } | |
1327 | } | |
1328 | ||
1329 | /* Test if peer uses SCTP-AUTH before continuing */ | |
1330 | if (!data->peer_auth_tested) { | |
1331 | int ii, auth_data = 0, auth_forward = 0; | |
1332 | unsigned char *p; | |
1333 | struct sctp_authchunks *authchunks; | |
1334 | ||
1335 | optlen = | |
1336 | (socklen_t) (sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t)); | |
1337 | authchunks = OPENSSL_malloc(optlen); | |
918bb865 | 1338 | if (!authchunks) { |
7c82e339 | 1339 | BIOerr(BIO_F_DGRAM_SCTP_READ, ERR_R_MALLOC_FAILURE); |
918bb865 MC |
1340 | return -1; |
1341 | } | |
0f113f3e MC |
1342 | memset(authchunks, 0, optlen); |
1343 | ii = getsockopt(b->num, IPPROTO_SCTP, SCTP_PEER_AUTH_CHUNKS, | |
1344 | authchunks, &optlen); | |
1345 | ||
1346 | if (ii >= 0) | |
1347 | for (p = (unsigned char *)authchunks->gauth_chunks; | |
1348 | p < (unsigned char *)authchunks + optlen; | |
1349 | p += sizeof(uint8_t)) { | |
1350 | if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) | |
1351 | auth_data = 1; | |
1352 | if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) | |
1353 | auth_forward = 1; | |
1354 | } | |
1355 | ||
1356 | OPENSSL_free(authchunks); | |
1357 | ||
1358 | if (!auth_data || !auth_forward) { | |
1359 | BIOerr(BIO_F_DGRAM_SCTP_READ, BIO_R_CONNECT_ERROR); | |
1360 | return -1; | |
1361 | } | |
1362 | ||
1363 | data->peer_auth_tested = 1; | |
1364 | } | |
1365 | } | |
1366 | return (ret); | |
1367 | } | |
7e159e01 DSH |
1368 | |
1369 | static int dgram_sctp_write(BIO *b, const char *in, int inl) | |
0f113f3e MC |
1370 | { |
1371 | int ret; | |
1372 | bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr; | |
1373 | struct bio_dgram_sctp_sndinfo *sinfo = &(data->sndinfo); | |
1374 | struct bio_dgram_sctp_prinfo *pinfo = &(data->prinfo); | |
1375 | struct bio_dgram_sctp_sndinfo handshake_sinfo; | |
1376 | struct iovec iov[1]; | |
1377 | struct msghdr msg; | |
1378 | struct cmsghdr *cmsg; | |
1379 | # if defined(SCTP_SNDINFO) && defined(SCTP_PRINFO) | |
1380 | char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndinfo)) + | |
1381 | CMSG_SPACE(sizeof(struct sctp_prinfo))]; | |
1382 | struct sctp_sndinfo *sndinfo; | |
1383 | struct sctp_prinfo *prinfo; | |
1384 | # else | |
1385 | char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))]; | |
1386 | struct sctp_sndrcvinfo *sndrcvinfo; | |
1387 | # endif | |
7e159e01 | 1388 | |
0f113f3e | 1389 | clear_socket_error(); |
7e159e01 | 1390 | |
0f113f3e MC |
1391 | /* |
1392 | * If we're send anything else than application data, disable all user | |
1393 | * parameters and flags. | |
1394 | */ | |
1395 | if (in[0] != 23) { | |
16f8d4eb | 1396 | memset(&handshake_sinfo, 0, sizeof(handshake_sinfo)); |
0f113f3e MC |
1397 | # ifdef SCTP_SACK_IMMEDIATELY |
1398 | handshake_sinfo.snd_flags = SCTP_SACK_IMMEDIATELY; | |
1399 | # endif | |
1400 | sinfo = &handshake_sinfo; | |
1401 | } | |
1402 | ||
1403 | /* | |
1404 | * If we have to send a shutdown alert message and the socket is not dry | |
1405 | * yet, we have to save it and send it as soon as the socket gets dry. | |
1406 | */ | |
1407 | if (data->save_shutdown && !BIO_dgram_sctp_wait_for_dry(b)) { | |
918bb865 | 1408 | char *tmp; |
0f113f3e | 1409 | data->saved_message.bio = b; |
75ebbd9a | 1410 | if ((tmp = OPENSSL_malloc(inl)) == NULL) { |
7c82e339 | 1411 | BIOerr(BIO_F_DGRAM_SCTP_WRITE, ERR_R_MALLOC_FAILURE); |
918bb865 MC |
1412 | return -1; |
1413 | } | |
b548a1f1 | 1414 | OPENSSL_free(data->saved_message.data); |
918bb865 | 1415 | data->saved_message.data = tmp; |
0f113f3e MC |
1416 | memcpy(data->saved_message.data, in, inl); |
1417 | data->saved_message.length = inl; | |
1418 | return inl; | |
1419 | } | |
1420 | ||
1421 | iov[0].iov_base = (char *)in; | |
1422 | iov[0].iov_len = inl; | |
1423 | msg.msg_name = NULL; | |
1424 | msg.msg_namelen = 0; | |
1425 | msg.msg_iov = iov; | |
1426 | msg.msg_iovlen = 1; | |
1427 | msg.msg_control = (caddr_t) cmsgbuf; | |
1428 | msg.msg_controllen = 0; | |
1429 | msg.msg_flags = 0; | |
1430 | # if defined(SCTP_SNDINFO) && defined(SCTP_PRINFO) | |
1431 | cmsg = (struct cmsghdr *)cmsgbuf; | |
1432 | cmsg->cmsg_level = IPPROTO_SCTP; | |
1433 | cmsg->cmsg_type = SCTP_SNDINFO; | |
1434 | cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo)); | |
1435 | sndinfo = (struct sctp_sndinfo *)CMSG_DATA(cmsg); | |
16f8d4eb | 1436 | memset(sndinfo, 0, sizeof(*sndinfo)); |
0f113f3e MC |
1437 | sndinfo->snd_sid = sinfo->snd_sid; |
1438 | sndinfo->snd_flags = sinfo->snd_flags; | |
1439 | sndinfo->snd_ppid = sinfo->snd_ppid; | |
1440 | sndinfo->snd_context = sinfo->snd_context; | |
1441 | msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo)); | |
1442 | ||
1443 | cmsg = | |
1444 | (struct cmsghdr *)&cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndinfo))]; | |
1445 | cmsg->cmsg_level = IPPROTO_SCTP; | |
1446 | cmsg->cmsg_type = SCTP_PRINFO; | |
1447 | cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo)); | |
1448 | prinfo = (struct sctp_prinfo *)CMSG_DATA(cmsg); | |
16f8d4eb | 1449 | memset(prinfo, 0, sizeof(*prinfo)); |
0f113f3e MC |
1450 | prinfo->pr_policy = pinfo->pr_policy; |
1451 | prinfo->pr_value = pinfo->pr_value; | |
1452 | msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo)); | |
1453 | # else | |
1454 | cmsg = (struct cmsghdr *)cmsgbuf; | |
1455 | cmsg->cmsg_level = IPPROTO_SCTP; | |
1456 | cmsg->cmsg_type = SCTP_SNDRCV; | |
1457 | cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo)); | |
1458 | sndrcvinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg); | |
16f8d4eb | 1459 | memset(sndrcvinfo, 0, sizeof(*sndrcvinfo)); |
0f113f3e MC |
1460 | sndrcvinfo->sinfo_stream = sinfo->snd_sid; |
1461 | sndrcvinfo->sinfo_flags = sinfo->snd_flags; | |
1462 | # ifdef __FreeBSD__ | |
1463 | sndrcvinfo->sinfo_flags |= pinfo->pr_policy; | |
1464 | # endif | |
1465 | sndrcvinfo->sinfo_ppid = sinfo->snd_ppid; | |
1466 | sndrcvinfo->sinfo_context = sinfo->snd_context; | |
1467 | sndrcvinfo->sinfo_timetolive = pinfo->pr_value; | |
1468 | msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndrcvinfo)); | |
1469 | # endif | |
7e159e01 | 1470 | |
0f113f3e | 1471 | ret = sendmsg(b->num, &msg, 0); |
7e159e01 | 1472 | |
0f113f3e MC |
1473 | BIO_clear_retry_flags(b); |
1474 | if (ret <= 0) { | |
1475 | if (BIO_dgram_should_retry(ret)) { | |
1476 | BIO_set_retry_write(b); | |
1477 | data->_errno = get_last_socket_error(); | |
1478 | } | |
1479 | } | |
1480 | return (ret); | |
1481 | } | |
7e159e01 DSH |
1482 | |
1483 | static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr) | |
0f113f3e MC |
1484 | { |
1485 | long ret = 1; | |
1486 | bio_dgram_sctp_data *data = NULL; | |
1487 | socklen_t sockopt_len = 0; | |
1488 | struct sctp_authkeyid authkeyid; | |
1489 | struct sctp_authkey *authkey = NULL; | |
1490 | ||
1491 | data = (bio_dgram_sctp_data *) b->ptr; | |
1492 | ||
1493 | switch (cmd) { | |
1494 | case BIO_CTRL_DGRAM_QUERY_MTU: | |
1495 | /* | |
1496 | * Set to maximum (2^14) and ignore user input to enable transport | |
1497 | * protocol fragmentation. Returns always 2^14. | |
1498 | */ | |
1499 | data->mtu = 16384; | |
1500 | ret = data->mtu; | |
1501 | break; | |
1502 | case BIO_CTRL_DGRAM_SET_MTU: | |
1503 | /* | |
1504 | * Set to maximum (2^14) and ignore input to enable transport | |
1505 | * protocol fragmentation. Returns always 2^14. | |
1506 | */ | |
1507 | data->mtu = 16384; | |
1508 | ret = data->mtu; | |
1509 | break; | |
1510 | case BIO_CTRL_DGRAM_SET_CONNECTED: | |
1511 | case BIO_CTRL_DGRAM_CONNECT: | |
1512 | /* Returns always -1. */ | |
1513 | ret = -1; | |
1514 | break; | |
1515 | case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT: | |
1516 | /* | |
1517 | * SCTP doesn't need the DTLS timer Returns always 1. | |
1518 | */ | |
1519 | break; | |
1520 | case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD: | |
1521 | /* | |
1522 | * We allow transport protocol fragmentation so this is irrelevant | |
1523 | */ | |
1524 | ret = 0; | |
1525 | break; | |
1526 | case BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE: | |
1527 | if (num > 0) | |
1528 | data->in_handshake = 1; | |
1529 | else | |
1530 | data->in_handshake = 0; | |
1531 | ||
1532 | ret = | |
1533 | setsockopt(b->num, IPPROTO_SCTP, SCTP_NODELAY, | |
1534 | &data->in_handshake, sizeof(int)); | |
1535 | break; | |
1536 | case BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY: | |
1537 | /* | |
1538 | * New shared key for SCTP AUTH. Returns 0 on success, -1 otherwise. | |
1539 | */ | |
1540 | ||
1541 | /* Get active key */ | |
1542 | sockopt_len = sizeof(struct sctp_authkeyid); | |
1543 | ret = | |
1544 | getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, &authkeyid, | |
1545 | &sockopt_len); | |
1546 | if (ret < 0) | |
1547 | break; | |
1548 | ||
1549 | /* Add new key */ | |
1550 | sockopt_len = sizeof(struct sctp_authkey) + 64 * sizeof(uint8_t); | |
1551 | authkey = OPENSSL_malloc(sockopt_len); | |
1552 | if (authkey == NULL) { | |
1553 | ret = -1; | |
1554 | break; | |
1555 | } | |
16f8d4eb | 1556 | memset(authkey, 0, sockopt_len); |
0f113f3e MC |
1557 | authkey->sca_keynumber = authkeyid.scact_keynumber + 1; |
1558 | # ifndef __FreeBSD__ | |
1559 | /* | |
1560 | * This field is missing in FreeBSD 8.2 and earlier, and FreeBSD 8.3 | |
1561 | * and higher work without it. | |
1562 | */ | |
1563 | authkey->sca_keylength = 64; | |
1564 | # endif | |
1565 | memcpy(&authkey->sca_key[0], ptr, 64 * sizeof(uint8_t)); | |
1566 | ||
1567 | ret = | |
1568 | setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_KEY, authkey, | |
1569 | sockopt_len); | |
1570 | OPENSSL_free(authkey); | |
1571 | authkey = NULL; | |
1572 | if (ret < 0) | |
1573 | break; | |
1574 | ||
1575 | /* Reset active key */ | |
1576 | ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, | |
1577 | &authkeyid, sizeof(struct sctp_authkeyid)); | |
1578 | if (ret < 0) | |
1579 | break; | |
1580 | ||
1581 | break; | |
1582 | case BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY: | |
1583 | /* Returns 0 on success, -1 otherwise. */ | |
1584 | ||
1585 | /* Get active key */ | |
1586 | sockopt_len = sizeof(struct sctp_authkeyid); | |
1587 | ret = | |
1588 | getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, &authkeyid, | |
1589 | &sockopt_len); | |
1590 | if (ret < 0) | |
1591 | break; | |
1592 | ||
1593 | /* Set active key */ | |
1594 | authkeyid.scact_keynumber = authkeyid.scact_keynumber + 1; | |
1595 | ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, | |
1596 | &authkeyid, sizeof(struct sctp_authkeyid)); | |
1597 | if (ret < 0) | |
1598 | break; | |
1599 | ||
1600 | /* | |
1601 | * CCS has been sent, so remember that and fall through to check if | |
1602 | * we need to deactivate an old key | |
1603 | */ | |
1604 | data->ccs_sent = 1; | |
1605 | ||
1606 | case BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD: | |
1607 | /* Returns 0 on success, -1 otherwise. */ | |
1608 | ||
1609 | /* | |
1610 | * Has this command really been called or is this just a | |
1611 | * fall-through? | |
1612 | */ | |
1613 | if (cmd == BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD) | |
1614 | data->ccs_rcvd = 1; | |
1615 | ||
1616 | /* | |
1617 | * CSS has been both, received and sent, so deactivate an old key | |
1618 | */ | |
1619 | if (data->ccs_rcvd == 1 && data->ccs_sent == 1) { | |
1620 | /* Get active key */ | |
1621 | sockopt_len = sizeof(struct sctp_authkeyid); | |
1622 | ret = | |
1623 | getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, | |
1624 | &authkeyid, &sockopt_len); | |
1625 | if (ret < 0) | |
1626 | break; | |
1627 | ||
1628 | /* | |
1629 | * Deactivate key or delete second last key if | |
1630 | * SCTP_AUTHENTICATION_EVENT is not available. | |
1631 | */ | |
1632 | authkeyid.scact_keynumber = authkeyid.scact_keynumber - 1; | |
1633 | # ifdef SCTP_AUTH_DEACTIVATE_KEY | |
1634 | sockopt_len = sizeof(struct sctp_authkeyid); | |
1635 | ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DEACTIVATE_KEY, | |
1636 | &authkeyid, sockopt_len); | |
1637 | if (ret < 0) | |
1638 | break; | |
1639 | # endif | |
1640 | # ifndef SCTP_AUTHENTICATION_EVENT | |
1641 | if (authkeyid.scact_keynumber > 0) { | |
1642 | authkeyid.scact_keynumber = authkeyid.scact_keynumber - 1; | |
1643 | ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DELETE_KEY, | |
1644 | &authkeyid, sizeof(struct sctp_authkeyid)); | |
1645 | if (ret < 0) | |
1646 | break; | |
1647 | } | |
1648 | # endif | |
7e159e01 | 1649 | |
0f113f3e MC |
1650 | data->ccs_rcvd = 0; |
1651 | data->ccs_sent = 0; | |
1652 | } | |
1653 | break; | |
1654 | case BIO_CTRL_DGRAM_SCTP_GET_SNDINFO: | |
1655 | /* Returns the size of the copied struct. */ | |
1656 | if (num > (long)sizeof(struct bio_dgram_sctp_sndinfo)) | |
1657 | num = sizeof(struct bio_dgram_sctp_sndinfo); | |
1658 | ||
1659 | memcpy(ptr, &(data->sndinfo), num); | |
1660 | ret = num; | |
1661 | break; | |
1662 | case BIO_CTRL_DGRAM_SCTP_SET_SNDINFO: | |
1663 | /* Returns the size of the copied struct. */ | |
1664 | if (num > (long)sizeof(struct bio_dgram_sctp_sndinfo)) | |
1665 | num = sizeof(struct bio_dgram_sctp_sndinfo); | |
1666 | ||
1667 | memcpy(&(data->sndinfo), ptr, num); | |
1668 | break; | |
1669 | case BIO_CTRL_DGRAM_SCTP_GET_RCVINFO: | |
1670 | /* Returns the size of the copied struct. */ | |
1671 | if (num > (long)sizeof(struct bio_dgram_sctp_rcvinfo)) | |
1672 | num = sizeof(struct bio_dgram_sctp_rcvinfo); | |
1673 | ||
1674 | memcpy(ptr, &data->rcvinfo, num); | |
1675 | ||
1676 | ret = num; | |
1677 | break; | |
1678 | case BIO_CTRL_DGRAM_SCTP_SET_RCVINFO: | |
1679 | /* Returns the size of the copied struct. */ | |
1680 | if (num > (long)sizeof(struct bio_dgram_sctp_rcvinfo)) | |
1681 | num = sizeof(struct bio_dgram_sctp_rcvinfo); | |
1682 | ||
1683 | memcpy(&(data->rcvinfo), ptr, num); | |
1684 | break; | |
1685 | case BIO_CTRL_DGRAM_SCTP_GET_PRINFO: | |
1686 | /* Returns the size of the copied struct. */ | |
1687 | if (num > (long)sizeof(struct bio_dgram_sctp_prinfo)) | |
1688 | num = sizeof(struct bio_dgram_sctp_prinfo); | |
1689 | ||
1690 | memcpy(ptr, &(data->prinfo), num); | |
1691 | ret = num; | |
1692 | break; | |
1693 | case BIO_CTRL_DGRAM_SCTP_SET_PRINFO: | |
1694 | /* Returns the size of the copied struct. */ | |
1695 | if (num > (long)sizeof(struct bio_dgram_sctp_prinfo)) | |
1696 | num = sizeof(struct bio_dgram_sctp_prinfo); | |
1697 | ||
1698 | memcpy(&(data->prinfo), ptr, num); | |
1699 | break; | |
1700 | case BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN: | |
1701 | /* Returns always 1. */ | |
1702 | if (num > 0) | |
1703 | data->save_shutdown = 1; | |
1704 | else | |
1705 | data->save_shutdown = 0; | |
1706 | break; | |
1707 | ||
1708 | default: | |
1709 | /* | |
1710 | * Pass to default ctrl function to process SCTP unspecific commands | |
1711 | */ | |
1712 | ret = dgram_ctrl(b, cmd, num, ptr); | |
1713 | break; | |
1714 | } | |
1715 | return (ret); | |
1716 | } | |
7e159e01 DSH |
1717 | |
1718 | int BIO_dgram_sctp_notification_cb(BIO *b, | |
0f113f3e MC |
1719 | void (*handle_notifications) (BIO *bio, |
1720 | void | |
1721 | *context, | |
1722 | void *buf), | |
7e159e01 | 1723 | void *context) |
0f113f3e MC |
1724 | { |
1725 | bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr; | |
7e159e01 | 1726 | |
0f113f3e MC |
1727 | if (handle_notifications != NULL) { |
1728 | data->handle_notifications = handle_notifications; | |
1729 | data->notification_context = context; | |
1730 | } else | |
1731 | return -1; | |
7e159e01 | 1732 | |
0f113f3e MC |
1733 | return 0; |
1734 | } | |
7e159e01 DSH |
1735 | |
1736 | int BIO_dgram_sctp_wait_for_dry(BIO *b) | |
1737 | { | |
0f113f3e MC |
1738 | int is_dry = 0; |
1739 | int n, sockflags, ret; | |
1740 | union sctp_notification snp; | |
1741 | struct msghdr msg; | |
1742 | struct iovec iov; | |
1743 | # ifdef SCTP_EVENT | |
1744 | struct sctp_event event; | |
1745 | # else | |
1746 | struct sctp_event_subscribe event; | |
1747 | socklen_t eventsize; | |
1748 | # endif | |
1749 | bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr; | |
1750 | ||
1751 | /* set sender dry event */ | |
1752 | # ifdef SCTP_EVENT | |
16f8d4eb | 1753 | memset(&event, 0, sizeof(event)); |
0f113f3e MC |
1754 | event.se_assoc_id = 0; |
1755 | event.se_type = SCTP_SENDER_DRY_EVENT; | |
1756 | event.se_on = 1; | |
1757 | ret = | |
1758 | setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, | |
1759 | sizeof(struct sctp_event)); | |
1760 | # else | |
1761 | eventsize = sizeof(struct sctp_event_subscribe); | |
1762 | ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, &eventsize); | |
1763 | if (ret < 0) | |
1764 | return -1; | |
1765 | ||
1766 | event.sctp_sender_dry_event = 1; | |
1767 | ||
1768 | ret = | |
1769 | setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1770 | sizeof(struct sctp_event_subscribe)); | |
1771 | # endif | |
1772 | if (ret < 0) | |
1773 | return -1; | |
1774 | ||
1775 | /* peek for notification */ | |
16f8d4eb | 1776 | memset(&snp, 0, sizeof(snp)); |
0f113f3e MC |
1777 | iov.iov_base = (char *)&snp; |
1778 | iov.iov_len = sizeof(union sctp_notification); | |
1779 | msg.msg_name = NULL; | |
1780 | msg.msg_namelen = 0; | |
1781 | msg.msg_iov = &iov; | |
1782 | msg.msg_iovlen = 1; | |
1783 | msg.msg_control = NULL; | |
1784 | msg.msg_controllen = 0; | |
1785 | msg.msg_flags = 0; | |
1786 | ||
1787 | n = recvmsg(b->num, &msg, MSG_PEEK); | |
1788 | if (n <= 0) { | |
1789 | if ((n < 0) && (get_last_socket_error() != EAGAIN) | |
1790 | && (get_last_socket_error() != EWOULDBLOCK)) | |
1791 | return -1; | |
1792 | else | |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | /* if we find a notification, process it and try again if necessary */ | |
1797 | while (msg.msg_flags & MSG_NOTIFICATION) { | |
16f8d4eb | 1798 | memset(&snp, 0, sizeof(snp)); |
0f113f3e MC |
1799 | iov.iov_base = (char *)&snp; |
1800 | iov.iov_len = sizeof(union sctp_notification); | |
1801 | msg.msg_name = NULL; | |
1802 | msg.msg_namelen = 0; | |
1803 | msg.msg_iov = &iov; | |
1804 | msg.msg_iovlen = 1; | |
1805 | msg.msg_control = NULL; | |
1806 | msg.msg_controllen = 0; | |
1807 | msg.msg_flags = 0; | |
1808 | ||
1809 | n = recvmsg(b->num, &msg, 0); | |
1810 | if (n <= 0) { | |
1811 | if ((n < 0) && (get_last_socket_error() != EAGAIN) | |
1812 | && (get_last_socket_error() != EWOULDBLOCK)) | |
1813 | return -1; | |
1814 | else | |
1815 | return is_dry; | |
1816 | } | |
1817 | ||
1818 | if (snp.sn_header.sn_type == SCTP_SENDER_DRY_EVENT) { | |
1819 | is_dry = 1; | |
1820 | ||
1821 | /* disable sender dry event */ | |
1822 | # ifdef SCTP_EVENT | |
16f8d4eb | 1823 | memset(&event, 0, sizeof(event)); |
0f113f3e MC |
1824 | event.se_assoc_id = 0; |
1825 | event.se_type = SCTP_SENDER_DRY_EVENT; | |
1826 | event.se_on = 0; | |
1827 | ret = | |
1828 | setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, | |
1829 | sizeof(struct sctp_event)); | |
1830 | # else | |
1831 | eventsize = (socklen_t) sizeof(struct sctp_event_subscribe); | |
1832 | ret = | |
1833 | getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1834 | &eventsize); | |
1835 | if (ret < 0) | |
1836 | return -1; | |
1837 | ||
1838 | event.sctp_sender_dry_event = 0; | |
1839 | ||
1840 | ret = | |
1841 | setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, | |
1842 | sizeof(struct sctp_event_subscribe)); | |
1843 | # endif | |
1844 | if (ret < 0) | |
1845 | return -1; | |
1846 | } | |
1847 | # ifdef SCTP_AUTHENTICATION_EVENT | |
1848 | if (snp.sn_header.sn_type == SCTP_AUTHENTICATION_EVENT) | |
1849 | dgram_sctp_handle_auth_free_key_event(b, &snp); | |
1850 | # endif | |
7e159e01 | 1851 | |
0f113f3e MC |
1852 | if (data->handle_notifications != NULL) |
1853 | data->handle_notifications(b, data->notification_context, | |
1854 | (void *)&snp); | |
1855 | ||
1856 | /* found notification, peek again */ | |
16f8d4eb | 1857 | memset(&snp, 0, sizeof(snp)); |
0f113f3e MC |
1858 | iov.iov_base = (char *)&snp; |
1859 | iov.iov_len = sizeof(union sctp_notification); | |
1860 | msg.msg_name = NULL; | |
1861 | msg.msg_namelen = 0; | |
1862 | msg.msg_iov = &iov; | |
1863 | msg.msg_iovlen = 1; | |
1864 | msg.msg_control = NULL; | |
1865 | msg.msg_controllen = 0; | |
1866 | msg.msg_flags = 0; | |
1867 | ||
1868 | /* if we have seen the dry already, don't wait */ | |
1869 | if (is_dry) { | |
1870 | sockflags = fcntl(b->num, F_GETFL, 0); | |
1871 | fcntl(b->num, F_SETFL, O_NONBLOCK); | |
1872 | } | |
1873 | ||
1874 | n = recvmsg(b->num, &msg, MSG_PEEK); | |
1875 | ||
1876 | if (is_dry) { | |
1877 | fcntl(b->num, F_SETFL, sockflags); | |
1878 | } | |
1879 | ||
1880 | if (n <= 0) { | |
1881 | if ((n < 0) && (get_last_socket_error() != EAGAIN) | |
1882 | && (get_last_socket_error() != EWOULDBLOCK)) | |
1883 | return -1; | |
1884 | else | |
1885 | return is_dry; | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | /* read anything else */ | |
1890 | return is_dry; | |
7e159e01 DSH |
1891 | } |
1892 | ||
1893 | int BIO_dgram_sctp_msg_waiting(BIO *b) | |
0f113f3e MC |
1894 | { |
1895 | int n, sockflags; | |
1896 | union sctp_notification snp; | |
1897 | struct msghdr msg; | |
1898 | struct iovec iov; | |
1899 | bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr; | |
1900 | ||
1901 | /* Check if there are any messages waiting to be read */ | |
1902 | do { | |
16f8d4eb | 1903 | memset(&snp, 0, sizeof(snp)); |
0f113f3e MC |
1904 | iov.iov_base = (char *)&snp; |
1905 | iov.iov_len = sizeof(union sctp_notification); | |
1906 | msg.msg_name = NULL; | |
1907 | msg.msg_namelen = 0; | |
1908 | msg.msg_iov = &iov; | |
1909 | msg.msg_iovlen = 1; | |
1910 | msg.msg_control = NULL; | |
1911 | msg.msg_controllen = 0; | |
1912 | msg.msg_flags = 0; | |
1913 | ||
1914 | sockflags = fcntl(b->num, F_GETFL, 0); | |
1915 | fcntl(b->num, F_SETFL, O_NONBLOCK); | |
1916 | n = recvmsg(b->num, &msg, MSG_PEEK); | |
1917 | fcntl(b->num, F_SETFL, sockflags); | |
1918 | ||
1919 | /* if notification, process and try again */ | |
1920 | if (n > 0 && (msg.msg_flags & MSG_NOTIFICATION)) { | |
1921 | # ifdef SCTP_AUTHENTICATION_EVENT | |
1922 | if (snp.sn_header.sn_type == SCTP_AUTHENTICATION_EVENT) | |
1923 | dgram_sctp_handle_auth_free_key_event(b, &snp); | |
1924 | # endif | |
7e159e01 | 1925 | |
16f8d4eb | 1926 | memset(&snp, 0, sizeof(snp)); |
0f113f3e MC |
1927 | iov.iov_base = (char *)&snp; |
1928 | iov.iov_len = sizeof(union sctp_notification); | |
1929 | msg.msg_name = NULL; | |
1930 | msg.msg_namelen = 0; | |
1931 | msg.msg_iov = &iov; | |
1932 | msg.msg_iovlen = 1; | |
1933 | msg.msg_control = NULL; | |
1934 | msg.msg_controllen = 0; | |
1935 | msg.msg_flags = 0; | |
1936 | n = recvmsg(b->num, &msg, 0); | |
1937 | ||
1938 | if (data->handle_notifications != NULL) | |
1939 | data->handle_notifications(b, data->notification_context, | |
1940 | (void *)&snp); | |
1941 | } | |
1942 | ||
1943 | } while (n > 0 && (msg.msg_flags & MSG_NOTIFICATION)); | |
1944 | ||
1945 | /* Return 1 if there is a message to be read, return 0 otherwise. */ | |
1946 | if (n > 0) | |
1947 | return 1; | |
1948 | else | |
1949 | return 0; | |
1950 | } | |
7e159e01 DSH |
1951 | |
1952 | static int dgram_sctp_puts(BIO *bp, const char *str) | |
0f113f3e MC |
1953 | { |
1954 | int n, ret; | |
7e159e01 | 1955 | |
0f113f3e MC |
1956 | n = strlen(str); |
1957 | ret = dgram_sctp_write(bp, str, n); | |
1958 | return (ret); | |
1959 | } | |
1960 | # endif | |
7e159e01 | 1961 | |
b3e72fc3 | 1962 | static int BIO_dgram_should_retry(int i) |
0f113f3e MC |
1963 | { |
1964 | int err; | |
36d16f8e | 1965 | |
0f113f3e MC |
1966 | if ((i == 0) || (i == -1)) { |
1967 | err = get_last_socket_error(); | |
36d16f8e | 1968 | |
0f113f3e MC |
1969 | # if defined(OPENSSL_SYS_WINDOWS) |
1970 | /* | |
1971 | * If the socket return value (i) is -1 and err is unexpectedly 0 at | |
1972 | * this point, the error code was overwritten by another system call | |
1973 | * before this error handling is called. | |
1974 | */ | |
36d16f8e BL |
1975 | # endif |
1976 | ||
0f113f3e MC |
1977 | return (BIO_dgram_non_fatal_error(err)); |
1978 | } | |
1979 | return (0); | |
1980 | } | |
1981 | ||
1982 | int BIO_dgram_non_fatal_error(int err) | |
1983 | { | |
1984 | switch (err) { | |
1985 | # if defined(OPENSSL_SYS_WINDOWS) | |
1986 | # if defined(WSAEWOULDBLOCK) | |
1987 | case WSAEWOULDBLOCK: | |
1988 | # endif | |
36d16f8e | 1989 | # endif |
36d16f8e | 1990 | |
0f113f3e MC |
1991 | # ifdef EWOULDBLOCK |
1992 | # ifdef WSAEWOULDBLOCK | |
1993 | # if WSAEWOULDBLOCK != EWOULDBLOCK | |
1994 | case EWOULDBLOCK: | |
1995 | # endif | |
1996 | # else | |
1997 | case EWOULDBLOCK: | |
36d16f8e | 1998 | # endif |
36d16f8e | 1999 | # endif |
36d16f8e | 2000 | |
0f113f3e MC |
2001 | # ifdef EINTR |
2002 | case EINTR: | |
2003 | # endif | |
36d16f8e | 2004 | |
0f113f3e MC |
2005 | # ifdef EAGAIN |
2006 | # if EWOULDBLOCK != EAGAIN | |
2007 | case EAGAIN: | |
2008 | # endif | |
36d16f8e | 2009 | # endif |
36d16f8e | 2010 | |
0f113f3e MC |
2011 | # ifdef EPROTO |
2012 | case EPROTO: | |
2013 | # endif | |
36d16f8e | 2014 | |
0f113f3e MC |
2015 | # ifdef EINPROGRESS |
2016 | case EINPROGRESS: | |
2017 | # endif | |
36d16f8e | 2018 | |
0f113f3e MC |
2019 | # ifdef EALREADY |
2020 | case EALREADY: | |
2021 | # endif | |
36d16f8e | 2022 | |
0f113f3e MC |
2023 | return (1); |
2024 | /* break; */ | |
2025 | default: | |
2026 | break; | |
2027 | } | |
2028 | return (0); | |
2029 | } | |
5d6a0179 RL |
2030 | |
2031 | static void get_current_time(struct timeval *t) | |
0f113f3e MC |
2032 | { |
2033 | # if defined(_WIN32) | |
2034 | SYSTEMTIME st; | |
2035 | union { | |
2036 | unsigned __int64 ul; | |
2037 | FILETIME ft; | |
2038 | } now; | |
2039 | ||
2040 | GetSystemTime(&st); | |
2041 | SystemTimeToFileTime(&st, &now.ft); | |
2042 | # ifdef __MINGW32__ | |
2043 | now.ul -= 116444736000000000ULL; | |
2044 | # else | |
d2a0d72f | 2045 | now.ul -= 116444736000000000UI64; /* re-bias to 1/1/1970 */ |
0f113f3e MC |
2046 | # endif |
2047 | t->tv_sec = (long)(now.ul / 10000000); | |
2048 | t->tv_usec = ((int)(now.ul % 10000000)) / 10; | |
2049 | # elif defined(OPENSSL_SYS_VMS) | |
2050 | struct timeb tb; | |
2051 | ftime(&tb); | |
2052 | t->tv_sec = (long)tb.time; | |
2053 | t->tv_usec = (long)tb.millitm * 1000; | |
2054 | # else | |
2055 | gettimeofday(t, NULL); | |
2056 | # endif | |
2057 | } | |
74e056ed DSH |
2058 | |
2059 | #endif |