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Commit | Line | Data |
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b57f37fb WP |
1 | /* |
2 | * libratbox: a library used by ircd-ratbox and other things | |
3 | * openssl.c: openssl related code | |
4 | * | |
5 | * Copyright (C) 2007-2008 ircd-ratbox development team | |
6 | * Copyright (C) 2007-2008 Aaron Sethman <androsyn@ratbox.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
21 | * USA | |
22 | * | |
23 | * $Id: commio.c 24808 2008-01-02 08:17:05Z androsyn $ | |
24 | */ | |
25 | ||
26 | #include <libratbox_config.h> | |
27 | #include <ratbox_lib.h> | |
28 | ||
29 | #ifdef HAVE_OPENSSL | |
30 | ||
31 | #include <commio-int.h> | |
32 | #include <commio-ssl.h> | |
33 | #include <openssl/ssl.h> | |
34 | #include <openssl/dh.h> | |
35 | #include <openssl/err.h> | |
36 | #include <openssl/rand.h> | |
37 | ||
38 | static SSL_CTX *ssl_server_ctx; | |
39 | static SSL_CTX *ssl_client_ctx; | |
033be687 | 40 | static int libratbox_index = -1; |
b57f37fb | 41 | |
94b4fbf9 VY |
42 | static unsigned long |
43 | get_last_err(void) | |
b57f37fb WP |
44 | { |
45 | unsigned long t_err, err = 0; | |
46 | err = ERR_get_error(); | |
47 | if(err == 0) | |
48 | return 0; | |
94b4fbf9 | 49 | |
b57f37fb WP |
50 | while((t_err = ERR_get_error()) > 0) |
51 | err = t_err; | |
52 | ||
53 | return err; | |
54 | } | |
55 | ||
56 | void | |
94b4fbf9 | 57 | rb_ssl_shutdown(rb_fde_t *F) |
b57f37fb WP |
58 | { |
59 | int i; | |
60 | if(F == NULL || F->ssl == NULL) | |
61 | return; | |
62 | SSL_set_shutdown((SSL *) F->ssl, SSL_RECEIVED_SHUTDOWN); | |
63 | ||
94b4fbf9 | 64 | for(i = 0; i < 4; i++) |
b57f37fb WP |
65 | { |
66 | if(SSL_shutdown((SSL *) F->ssl)) | |
67 | break; | |
68 | } | |
69 | get_last_err(); | |
70 | SSL_free((SSL *) F->ssl); | |
71 | } | |
72 | ||
033be687 VY |
73 | unsigned int |
74 | rb_ssl_handshake_count(rb_fde_t *F) | |
75 | { | |
76 | return F->handshake_count; | |
77 | } | |
78 | ||
79 | void | |
80 | rb_ssl_clear_handshake_count(rb_fde_t *F) | |
81 | { | |
82 | F->handshake_count = 0; | |
83 | } | |
84 | ||
b57f37fb | 85 | static void |
94b4fbf9 | 86 | rb_ssl_timeout(rb_fde_t *F, void *notused) |
b57f37fb | 87 | { |
8f40f4bb VY |
88 | lrb_assert(F->accept != NULL); |
89 | F->accept->callback(F, RB_ERR_TIMEOUT, NULL, 0, F->accept->data); | |
b57f37fb WP |
90 | } |
91 | ||
92 | ||
94b4fbf9 VY |
93 | static void |
94 | rb_ssl_info_callback(SSL * ssl, int where, int ret) | |
033be687 VY |
95 | { |
96 | if(where & SSL_CB_HANDSHAKE_START) | |
97 | { | |
98 | rb_fde_t *F = SSL_get_ex_data(ssl, libratbox_index); | |
99 | if(F == NULL) | |
100 | return; | |
101 | F->handshake_count++; | |
94b4fbf9 | 102 | } |
033be687 VY |
103 | } |
104 | ||
105 | static void | |
106 | rb_setup_ssl_cb(rb_fde_t *F) | |
107 | { | |
108 | SSL_set_ex_data(F->ssl, libratbox_index, (char *)F); | |
94b4fbf9 | 109 | SSL_set_info_callback((SSL *) F->ssl, (void (*)(const SSL *,int,int))rb_ssl_info_callback); |
033be687 VY |
110 | } |
111 | ||
b57f37fb | 112 | static void |
94b4fbf9 | 113 | rb_ssl_tryaccept(rb_fde_t *F, void *data) |
b57f37fb WP |
114 | { |
115 | int ssl_err; | |
116 | lrb_assert(F->accept != NULL); | |
8f40f4bb | 117 | int flags; |
b68b0b2c | 118 | struct acceptdata *ad; |
b57f37fb WP |
119 | |
120 | if(!SSL_is_init_finished((SSL *) F->ssl)) | |
121 | { | |
122 | if((ssl_err = SSL_accept((SSL *) F->ssl)) <= 0) | |
123 | { | |
124 | switch (ssl_err = SSL_get_error((SSL *) F->ssl, ssl_err)) | |
125 | { | |
b57f37fb WP |
126 | case SSL_ERROR_WANT_READ: |
127 | case SSL_ERROR_WANT_WRITE: | |
8f40f4bb VY |
128 | if(ssl_err == SSL_ERROR_WANT_WRITE) |
129 | flags = RB_SELECT_WRITE; | |
130 | else | |
131 | flags = RB_SELECT_READ; | |
132 | F->ssl_errno = get_last_err(); | |
133 | rb_setselect(F, flags, rb_ssl_tryaccept, NULL); | |
134 | break; | |
135 | case SSL_ERROR_SYSCALL: | |
136 | F->accept->callback(F, RB_ERROR, NULL, 0, F->accept->data); | |
137 | break; | |
b57f37fb WP |
138 | default: |
139 | F->ssl_errno = get_last_err(); | |
140 | F->accept->callback(F, RB_ERROR_SSL, NULL, 0, F->accept->data); | |
141 | break; | |
142 | } | |
143 | return; | |
144 | } | |
145 | } | |
146 | rb_settimeout(F, 0, NULL, NULL); | |
147 | rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, NULL, NULL); | |
94b4fbf9 | 148 | |
b68b0b2c | 149 | ad = F->accept; |
b57f37fb | 150 | F->accept = NULL; |
94b4fbf9 | 151 | ad->callback(F, RB_OK, (struct sockaddr *)&ad->S, ad->addrlen, ad->data); |
b68b0b2c | 152 | rb_free(ad); |
b57f37fb WP |
153 | |
154 | } | |
155 | ||
033be687 VY |
156 | |
157 | static void | |
158 | rb_ssl_accept_common(rb_fde_t *new_F) | |
b57f37fb WP |
159 | { |
160 | int ssl_err; | |
b57f37fb WP |
161 | if((ssl_err = SSL_accept((SSL *) new_F->ssl)) <= 0) |
162 | { | |
163 | switch (ssl_err = SSL_get_error((SSL *) new_F->ssl, ssl_err)) | |
164 | { | |
165 | case SSL_ERROR_SYSCALL: | |
166 | if(rb_ignore_errno(errno)) | |
167 | case SSL_ERROR_WANT_READ: | |
168 | case SSL_ERROR_WANT_WRITE: | |
169 | { | |
170 | new_F->ssl_errno = get_last_err(); | |
171 | rb_setselect(new_F, RB_SELECT_READ | RB_SELECT_WRITE, | |
172 | rb_ssl_tryaccept, NULL); | |
173 | return; | |
174 | } | |
175 | default: | |
176 | new_F->ssl_errno = get_last_err(); | |
177 | new_F->accept->callback(new_F, RB_ERROR_SSL, NULL, 0, new_F->accept->data); | |
178 | return; | |
179 | } | |
180 | } | |
181 | else | |
182 | { | |
183 | rb_ssl_tryaccept(new_F, NULL); | |
184 | } | |
185 | } | |
186 | ||
033be687 | 187 | void |
94b4fbf9 | 188 | rb_ssl_start_accepted(rb_fde_t *new_F, ACCB * cb, void *data, int timeout) |
033be687 VY |
189 | { |
190 | new_F->type |= RB_FD_SSL; | |
191 | new_F->ssl = SSL_new(ssl_server_ctx); | |
192 | new_F->accept = rb_malloc(sizeof(struct acceptdata)); | |
193 | ||
194 | new_F->accept->callback = cb; | |
195 | new_F->accept->data = data; | |
196 | rb_settimeout(new_F, timeout, rb_ssl_timeout, NULL); | |
197 | ||
198 | new_F->accept->addrlen = 0; | |
199 | SSL_set_fd((SSL *) new_F->ssl, rb_get_fd(new_F)); | |
200 | rb_setup_ssl_cb(new_F); | |
201 | rb_ssl_accept_common(new_F); | |
202 | } | |
203 | ||
b57f37fb WP |
204 | |
205 | ||
206 | ||
207 | void | |
94b4fbf9 | 208 | rb_ssl_accept_setup(rb_fde_t *F, rb_fde_t *new_F, struct sockaddr *st, int addrlen) |
b57f37fb | 209 | { |
b57f37fb WP |
210 | new_F->type |= RB_FD_SSL; |
211 | new_F->ssl = SSL_new(ssl_server_ctx); | |
212 | new_F->accept = rb_malloc(sizeof(struct acceptdata)); | |
213 | ||
214 | new_F->accept->callback = F->accept->callback; | |
215 | new_F->accept->data = F->accept->data; | |
216 | rb_settimeout(new_F, 10, rb_ssl_timeout, NULL); | |
217 | memcpy(&new_F->accept->S, st, addrlen); | |
218 | new_F->accept->addrlen = addrlen; | |
219 | ||
4414eb3c | 220 | SSL_set_fd((SSL *) new_F->ssl, rb_get_fd(new_F)); |
033be687 VY |
221 | rb_setup_ssl_cb(new_F); |
222 | rb_ssl_accept_common(new_F); | |
b57f37fb WP |
223 | } |
224 | ||
225 | static ssize_t | |
94b4fbf9 | 226 | rb_ssl_read_or_write(int r_or_w, rb_fde_t *F, void *rbuf, const void *wbuf, size_t count) |
b57f37fb WP |
227 | { |
228 | ssize_t ret; | |
229 | unsigned long err; | |
230 | SSL *ssl = F->ssl; | |
231 | ||
232 | if(r_or_w == 0) | |
94b4fbf9 | 233 | ret = (ssize_t) SSL_read(ssl, rbuf, (int)count); |
b57f37fb | 234 | else |
94b4fbf9 | 235 | ret = (ssize_t) SSL_write(ssl, wbuf, (int)count); |
b57f37fb WP |
236 | |
237 | if(ret < 0) | |
238 | { | |
239 | switch (SSL_get_error(ssl, ret)) | |
240 | { | |
241 | case SSL_ERROR_WANT_READ: | |
242 | errno = EAGAIN; | |
243 | return RB_RW_SSL_NEED_READ; | |
244 | case SSL_ERROR_WANT_WRITE: | |
245 | errno = EAGAIN; | |
246 | return RB_RW_SSL_NEED_WRITE; | |
247 | case SSL_ERROR_ZERO_RETURN: | |
248 | return 0; | |
249 | case SSL_ERROR_SYSCALL: | |
250 | err = get_last_err(); | |
251 | if(err == 0) | |
252 | { | |
253 | F->ssl_errno = 0; | |
254 | return RB_RW_IO_ERROR; | |
255 | } | |
256 | break; | |
257 | default: | |
258 | err = get_last_err(); | |
259 | break; | |
260 | } | |
261 | F->ssl_errno = err; | |
262 | if(err > 0) | |
263 | { | |
264 | errno = EIO; /* not great but... */ | |
265 | return RB_RW_SSL_ERROR; | |
266 | } | |
267 | return RB_RW_IO_ERROR; | |
268 | } | |
269 | return ret; | |
270 | } | |
271 | ||
272 | ssize_t | |
94b4fbf9 | 273 | rb_ssl_read(rb_fde_t *F, void *buf, size_t count) |
b57f37fb WP |
274 | { |
275 | return rb_ssl_read_or_write(0, F, buf, NULL, count); | |
276 | } | |
277 | ||
278 | ssize_t | |
94b4fbf9 | 279 | rb_ssl_write(rb_fde_t *F, const void *buf, size_t count) |
b57f37fb WP |
280 | { |
281 | return rb_ssl_read_or_write(1, F, NULL, buf, count); | |
282 | } | |
283 | ||
a099270d JT |
284 | static int |
285 | verify_accept_all_cb(int preverify_ok, X509_STORE_CTX *x509_ctx) | |
286 | { | |
287 | return 1; | |
288 | } | |
289 | ||
b57f37fb WP |
290 | int |
291 | rb_init_ssl(void) | |
292 | { | |
293 | int ret = 1; | |
033be687 | 294 | char libratbox_data[] = "libratbox data"; |
b57f37fb WP |
295 | SSL_load_error_strings(); |
296 | SSL_library_init(); | |
033be687 | 297 | libratbox_index = SSL_get_ex_new_index(0, libratbox_data, NULL, NULL, NULL); |
b57f37fb WP |
298 | ssl_server_ctx = SSL_CTX_new(SSLv23_server_method()); |
299 | if(ssl_server_ctx == NULL) | |
300 | { | |
301 | rb_lib_log("rb_init_openssl: Unable to initialize OpenSSL server context: %s", | |
302 | ERR_error_string(ERR_get_error(), NULL)); | |
303 | ret = 0; | |
304 | } | |
305 | /* Disable SSLv2, make the client use our settings */ | |
306 | SSL_CTX_set_options(ssl_server_ctx, SSL_OP_NO_SSLv2 | SSL_OP_CIPHER_SERVER_PREFERENCE); | |
a099270d | 307 | SSL_CTX_set_verify(ssl_server_ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, verify_accept_all_cb); |
94b4fbf9 | 308 | |
b57f37fb WP |
309 | ssl_client_ctx = SSL_CTX_new(TLSv1_client_method()); |
310 | ||
311 | if(ssl_client_ctx == NULL) | |
312 | { | |
313 | rb_lib_log("rb_init_openssl: Unable to initialize OpenSSL client context: %s", | |
314 | ERR_error_string(ERR_get_error(), NULL)); | |
315 | ret = 0; | |
316 | } | |
317 | return ret; | |
318 | } | |
319 | ||
320 | ||
321 | int | |
322 | rb_setup_ssl_server(const char *cert, const char *keyfile, const char *dhfile) | |
323 | { | |
b57f37fb WP |
324 | DH *dh; |
325 | unsigned long err; | |
326 | if(cert == NULL) | |
327 | { | |
328 | rb_lib_log("rb_setup_ssl_server: No certificate file"); | |
329 | return 0; | |
330 | } | |
f030cae8 | 331 | if(!SSL_CTX_use_certificate_chain_file(ssl_server_ctx, cert)) |
b57f37fb WP |
332 | { |
333 | err = ERR_get_error(); | |
334 | rb_lib_log("rb_setup_ssl_server: Error loading certificate file [%s]: %s", cert, | |
335 | ERR_error_string(err, NULL)); | |
336 | return 0; | |
337 | } | |
338 | ||
339 | if(keyfile == NULL) | |
340 | { | |
341 | rb_lib_log("rb_setup_ssl_server: No key file"); | |
342 | return 0; | |
343 | } | |
344 | ||
345 | ||
346 | if(!SSL_CTX_use_PrivateKey_file(ssl_server_ctx, keyfile, SSL_FILETYPE_PEM)) | |
347 | { | |
348 | err = ERR_get_error(); | |
349 | rb_lib_log("rb_setup_ssl_server: Error loading keyfile [%s]: %s", keyfile, | |
350 | ERR_error_string(err, NULL)); | |
351 | return 0; | |
352 | } | |
353 | ||
354 | if(dhfile != NULL) | |
355 | { | |
356 | /* DH parameters aren't necessary, but they are nice..if they didn't pass one..that is their problem */ | |
94b4fbf9 VY |
357 | BIO *bio = BIO_new_file(dhfile, "r"); |
358 | if(bio != NULL) | |
b57f37fb | 359 | { |
94b4fbf9 | 360 | dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); |
b57f37fb WP |
361 | if(dh == NULL) |
362 | { | |
363 | err = ERR_get_error(); | |
364 | rb_lib_log | |
365 | ("rb_setup_ssl_server: Error loading DH params file [%s]: %s", | |
94b4fbf9 VY |
366 | dhfile, ERR_error_string(err, NULL)); |
367 | BIO_free(bio); | |
b57f37fb WP |
368 | return 0; |
369 | } | |
94b4fbf9 | 370 | BIO_free(bio); |
b57f37fb | 371 | SSL_CTX_set_tmp_dh(ssl_server_ctx, dh); |
94b4fbf9 VY |
372 | } |
373 | else | |
374 | { | |
375 | err = ERR_get_error(); | |
376 | rb_lib_log("rb_setup_ssl_server: Error loading DH params file [%s]: %s", | |
377 | dhfile, ERR_error_string(err, NULL)); | |
b57f37fb WP |
378 | } |
379 | } | |
380 | return 1; | |
381 | } | |
382 | ||
383 | int | |
94b4fbf9 | 384 | rb_ssl_listen(rb_fde_t *F, int backlog) |
b57f37fb WP |
385 | { |
386 | F->type = RB_FD_SOCKET | RB_FD_LISTEN | RB_FD_SSL; | |
387 | return listen(F->fd, backlog); | |
388 | } | |
389 | ||
390 | struct ssl_connect | |
391 | { | |
392 | CNCB *callback; | |
393 | void *data; | |
394 | int timeout; | |
395 | }; | |
396 | ||
397 | static void | |
94b4fbf9 | 398 | rb_ssl_connect_realcb(rb_fde_t *F, int status, struct ssl_connect *sconn) |
b57f37fb WP |
399 | { |
400 | F->connect->callback = sconn->callback; | |
401 | F->connect->data = sconn->data; | |
402 | rb_free(sconn); | |
403 | rb_connect_callback(F, status); | |
404 | } | |
405 | ||
406 | static void | |
94b4fbf9 | 407 | rb_ssl_tryconn_timeout_cb(rb_fde_t *F, void *data) |
b57f37fb WP |
408 | { |
409 | rb_ssl_connect_realcb(F, RB_ERR_TIMEOUT, data); | |
410 | } | |
411 | ||
412 | static void | |
94b4fbf9 | 413 | rb_ssl_tryconn_cb(rb_fde_t *F, void *data) |
b57f37fb WP |
414 | { |
415 | struct ssl_connect *sconn = data; | |
416 | int ssl_err; | |
417 | if(!SSL_is_init_finished((SSL *) F->ssl)) | |
418 | { | |
419 | if((ssl_err = SSL_connect((SSL *) F->ssl)) <= 0) | |
420 | { | |
421 | switch (ssl_err = SSL_get_error((SSL *) F->ssl, ssl_err)) | |
422 | { | |
423 | case SSL_ERROR_SYSCALL: | |
424 | if(rb_ignore_errno(errno)) | |
425 | case SSL_ERROR_WANT_READ: | |
426 | case SSL_ERROR_WANT_WRITE: | |
427 | { | |
428 | F->ssl_errno = get_last_err(); | |
429 | rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, | |
430 | rb_ssl_tryconn_cb, sconn); | |
431 | return; | |
432 | } | |
433 | default: | |
434 | F->ssl_errno = get_last_err(); | |
435 | rb_ssl_connect_realcb(F, RB_ERROR_SSL, sconn); | |
436 | return; | |
437 | } | |
438 | } | |
439 | else | |
440 | { | |
441 | rb_ssl_connect_realcb(F, RB_OK, sconn); | |
442 | } | |
443 | } | |
444 | } | |
445 | ||
446 | static void | |
94b4fbf9 | 447 | rb_ssl_tryconn(rb_fde_t *F, int status, void *data) |
b57f37fb WP |
448 | { |
449 | struct ssl_connect *sconn = data; | |
450 | int ssl_err; | |
451 | if(status != RB_OK) | |
452 | { | |
453 | rb_ssl_connect_realcb(F, status, sconn); | |
454 | return; | |
455 | } | |
456 | ||
457 | F->type |= RB_FD_SSL; | |
458 | F->ssl = SSL_new(ssl_client_ctx); | |
459 | SSL_set_fd((SSL *) F->ssl, F->fd); | |
033be687 | 460 | rb_setup_ssl_cb(F); |
b57f37fb WP |
461 | rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn); |
462 | if((ssl_err = SSL_connect((SSL *) F->ssl)) <= 0) | |
463 | { | |
464 | switch (ssl_err = SSL_get_error((SSL *) F->ssl, ssl_err)) | |
465 | { | |
466 | case SSL_ERROR_SYSCALL: | |
467 | if(rb_ignore_errno(errno)) | |
468 | case SSL_ERROR_WANT_READ: | |
469 | case SSL_ERROR_WANT_WRITE: | |
470 | { | |
471 | F->ssl_errno = get_last_err(); | |
472 | rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, | |
473 | rb_ssl_tryconn_cb, sconn); | |
474 | return; | |
475 | } | |
476 | default: | |
477 | F->ssl_errno = get_last_err(); | |
478 | rb_ssl_connect_realcb(F, RB_ERROR_SSL, sconn); | |
479 | return; | |
480 | } | |
481 | } | |
482 | else | |
483 | { | |
484 | rb_ssl_connect_realcb(F, RB_OK, sconn); | |
485 | } | |
486 | } | |
487 | ||
488 | void | |
94b4fbf9 | 489 | rb_connect_tcp_ssl(rb_fde_t *F, struct sockaddr *dest, |
b57f37fb WP |
490 | struct sockaddr *clocal, int socklen, CNCB * callback, void *data, int timeout) |
491 | { | |
492 | struct ssl_connect *sconn; | |
493 | if(F == NULL) | |
494 | return; | |
495 | ||
496 | sconn = rb_malloc(sizeof(struct ssl_connect)); | |
497 | sconn->data = data; | |
498 | sconn->callback = callback; | |
499 | sconn->timeout = timeout; | |
500 | rb_connect_tcp(F, dest, clocal, socklen, rb_ssl_tryconn, sconn, timeout); | |
501 | ||
502 | } | |
503 | ||
504 | void | |
94b4fbf9 | 505 | rb_ssl_start_connected(rb_fde_t *F, CNCB * callback, void *data, int timeout) |
b57f37fb WP |
506 | { |
507 | struct ssl_connect *sconn; | |
508 | int ssl_err; | |
509 | if(F == NULL) | |
510 | return; | |
511 | ||
512 | sconn = rb_malloc(sizeof(struct ssl_connect)); | |
513 | sconn->data = data; | |
514 | sconn->callback = callback; | |
515 | sconn->timeout = timeout; | |
516 | F->connect = rb_malloc(sizeof(struct conndata)); | |
517 | F->connect->callback = callback; | |
518 | F->connect->data = data; | |
519 | F->type |= RB_FD_SSL; | |
520 | F->ssl = SSL_new(ssl_client_ctx); | |
94b4fbf9 | 521 | |
b57f37fb | 522 | SSL_set_fd((SSL *) F->ssl, F->fd); |
033be687 | 523 | rb_setup_ssl_cb(F); |
b57f37fb WP |
524 | rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn); |
525 | if((ssl_err = SSL_connect((SSL *) F->ssl)) <= 0) | |
526 | { | |
527 | switch (ssl_err = SSL_get_error((SSL *) F->ssl, ssl_err)) | |
528 | { | |
529 | case SSL_ERROR_SYSCALL: | |
530 | if(rb_ignore_errno(errno)) | |
531 | case SSL_ERROR_WANT_READ: | |
532 | case SSL_ERROR_WANT_WRITE: | |
533 | { | |
534 | F->ssl_errno = get_last_err(); | |
535 | rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, | |
536 | rb_ssl_tryconn_cb, sconn); | |
537 | return; | |
538 | } | |
539 | default: | |
540 | F->ssl_errno = get_last_err(); | |
541 | rb_ssl_connect_realcb(F, RB_ERROR_SSL, sconn); | |
542 | return; | |
543 | } | |
544 | } | |
545 | else | |
546 | { | |
547 | rb_ssl_connect_realcb(F, RB_OK, sconn); | |
548 | } | |
549 | } | |
550 | ||
551 | int | |
552 | rb_init_prng(const char *path, prng_seed_t seed_type) | |
553 | { | |
554 | if(seed_type == RB_PRNG_DEFAULT) | |
555 | { | |
94b4fbf9 | 556 | #ifdef _WIN32 |
b57f37fb WP |
557 | RAND_screen(); |
558 | #endif | |
559 | return RAND_status(); | |
560 | } | |
561 | if(path == NULL) | |
562 | return RAND_status(); | |
563 | ||
564 | switch (seed_type) | |
565 | { | |
566 | case RB_PRNG_EGD: | |
567 | if(RAND_egd(path) == -1) | |
568 | return -1; | |
569 | break; | |
570 | case RB_PRNG_FILE: | |
571 | if(RAND_load_file(path, -1) == -1) | |
572 | return -1; | |
573 | break; | |
94b4fbf9 | 574 | #ifdef _WIN32 |
b57f37fb WP |
575 | case RB_PRNGWIN32: |
576 | RAND_screen(); | |
577 | break; | |
578 | #endif | |
579 | default: | |
580 | return -1; | |
581 | } | |
582 | ||
583 | return RAND_status(); | |
584 | } | |
585 | ||
586 | int | |
587 | rb_get_random(void *buf, size_t length) | |
588 | { | |
4414eb3c | 589 | int ret; |
94b4fbf9 | 590 | |
4414eb3c | 591 | if((ret = RAND_bytes(buf, length)) == 0) |
b57f37fb | 592 | { |
4414eb3c | 593 | /* remove the error from the queue */ |
94b4fbf9 | 594 | ERR_get_error(); |
b57f37fb | 595 | } |
4414eb3c | 596 | return ret; |
b57f37fb WP |
597 | } |
598 | ||
4414eb3c VY |
599 | int |
600 | rb_get_pseudo_random(void *buf, size_t length) | |
601 | { | |
602 | int ret; | |
603 | ret = RAND_pseudo_bytes(buf, length); | |
604 | if(ret < 0) | |
605 | return 0; | |
606 | return 1; | |
607 | } | |
b57f37fb WP |
608 | |
609 | const char * | |
94b4fbf9 | 610 | rb_get_ssl_strerror(rb_fde_t *F) |
b57f37fb WP |
611 | { |
612 | return ERR_error_string(F->ssl_errno, NULL); | |
613 | } | |
614 | ||
a099270d JT |
615 | int |
616 | rb_get_ssl_certfp(rb_fde_t *F, uint8_t certfp[RB_SSL_CERTFP_LEN]) | |
617 | { | |
618 | X509 *cert; | |
619 | int res; | |
620 | ||
621 | if (F->ssl == NULL) | |
622 | return 0; | |
623 | ||
624 | cert = SSL_get_peer_certificate((SSL *) F->ssl); | |
625 | if(cert != NULL) | |
626 | { | |
627 | res = SSL_get_verify_result((SSL *) F->ssl); | |
628 | if(res == X509_V_OK || | |
629 | res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN || | |
630 | res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE || | |
631 | res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) | |
632 | { | |
633 | memcpy(certfp, cert->sha1_hash, RB_SSL_CERTFP_LEN); | |
634 | return 1; | |
635 | } | |
6af7e4fa | 636 | X509_free(cert); |
a099270d JT |
637 | } |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
b57f37fb WP |
642 | int |
643 | rb_supports_ssl(void) | |
644 | { | |
645 | return 1; | |
646 | } | |
647 | ||
f030cae8 VY |
648 | void |
649 | rb_get_ssl_info(char *buf, size_t len) | |
650 | { | |
651 | rb_snprintf(buf, len, "Using SSL: %s compiled: 0x%lx, library 0x%lx", | |
652 | SSLeay_version(SSLEAY_VERSION), OPENSSL_VERSION_NUMBER, SSLeay()); | |
653 | } | |
654 | ||
655 | ||
b57f37fb | 656 | #endif /* HAVE_OPESSL */ |