summaryrefslogtreecommitdiff
path: root/src/lib/libssl/s23_clnt.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libssl/s23_clnt.c')
-rw-r--r--src/lib/libssl/s23_clnt.c620
1 files changed, 290 insertions, 330 deletions
diff --git a/src/lib/libssl/s23_clnt.c b/src/lib/libssl/s23_clnt.c
index 6315e9d876..0fd388a05a 100644
--- a/src/lib/libssl/s23_clnt.c
+++ b/src/lib/libssl/s23_clnt.c
@@ -119,160 +119,163 @@
119static const SSL_METHOD *ssl23_get_client_method(int ver); 119static const SSL_METHOD *ssl23_get_client_method(int ver);
120static int ssl23_client_hello(SSL *s); 120static int ssl23_client_hello(SSL *s);
121static int ssl23_get_server_hello(SSL *s); 121static int ssl23_get_server_hello(SSL *s);
122static const SSL_METHOD *ssl23_get_client_method(int ver) 122static const SSL_METHOD
123 { 123*ssl23_get_client_method(int ver)
124{
124#ifndef OPENSSL_NO_SSL2 125#ifndef OPENSSL_NO_SSL2
125 if (ver == SSL2_VERSION) 126 if (ver == SSL2_VERSION)
126 return(SSLv2_client_method()); 127 return (SSLv2_client_method());
127#endif 128#endif
128 if (ver == SSL3_VERSION) 129 if (ver == SSL3_VERSION)
129 return(SSLv3_client_method()); 130 return (SSLv3_client_method());
130 else if (ver == TLS1_VERSION) 131 else if (ver == TLS1_VERSION)
131 return(TLSv1_client_method()); 132 return (TLSv1_client_method());
132 else if (ver == TLS1_1_VERSION) 133 else if (ver == TLS1_1_VERSION)
133 return(TLSv1_1_client_method()); 134 return (TLSv1_1_client_method());
134 else if (ver == TLS1_2_VERSION) 135 else if (ver == TLS1_2_VERSION)
135 return(TLSv1_2_client_method()); 136 return (TLSv1_2_client_method());
136 else 137 else
137 return(NULL); 138 return (NULL);
138 } 139}
139 140
140IMPLEMENT_ssl23_meth_func(SSLv23_client_method, 141IMPLEMENT_ssl23_meth_func(SSLv23_client_method,
141 ssl_undefined_function, 142 ssl_undefined_function, ssl23_connect, ssl23_get_client_method)
142 ssl23_connect, 143
143 ssl23_get_client_method) 144int
144 145ssl23_connect(SSL *s)
145int ssl23_connect(SSL *s) 146{
146 { 147 BUF_MEM *buf = NULL;
147 BUF_MEM *buf=NULL; 148 unsigned long Time = (unsigned long)time(NULL);
148 unsigned long Time=(unsigned long)time(NULL); 149 void (*cb)(const SSL *ssl, int type, int val) = NULL;
149 void (*cb)(const SSL *ssl,int type,int val)=NULL; 150 int ret = -1;
150 int ret= -1; 151 int new_state, state;
151 int new_state,state; 152
152 153 RAND_add(&Time, sizeof(Time), 0);
153 RAND_add(&Time,sizeof(Time),0);
154 ERR_clear_error(); 154 ERR_clear_error();
155 errno = 0; 155 errno = 0;
156 156
157 if (s->info_callback != NULL) 157 if (s->info_callback != NULL)
158 cb=s->info_callback; 158 cb = s->info_callback;
159 else if (s->ctx->info_callback != NULL) 159 else if (s->ctx->info_callback != NULL)
160 cb=s->ctx->info_callback; 160 cb = s->ctx->info_callback;
161 161
162 s->in_handshake++; 162 s->in_handshake++;
163 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 163 if (!SSL_in_init(s) || SSL_in_before(s))
164 SSL_clear(s);
164 165
165 for (;;) 166 for (;;) {
166 { 167 state = s->state;
167 state=s->state;
168 168
169 switch(s->state) 169 switch (s->state) {
170 {
171 case SSL_ST_BEFORE: 170 case SSL_ST_BEFORE:
172 case SSL_ST_CONNECT: 171 case SSL_ST_CONNECT:
173 case SSL_ST_BEFORE|SSL_ST_CONNECT: 172 case SSL_ST_BEFORE|SSL_ST_CONNECT:
174 case SSL_ST_OK|SSL_ST_CONNECT: 173 case SSL_ST_OK|SSL_ST_CONNECT:
175 174
176 if (s->session != NULL) 175 if (s->session != NULL) {
177 { 176 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_SSL23_DOING_SESSION_ID_REUSE);
178 SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE); 177 ret = -1;
179 ret= -1;
180 goto end; 178 goto end;
181 } 179 }
182 s->server=0; 180 s->server = 0;
183 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); 181 if (cb != NULL)
182 cb(s, SSL_CB_HANDSHAKE_START, 1);
184 183
185 /* s->version=TLS1_VERSION; */ 184 /* s->version=TLS1_VERSION; */
186 s->type=SSL_ST_CONNECT; 185 s->type = SSL_ST_CONNECT;
187 186
188 if (s->init_buf == NULL) 187 if (s->init_buf == NULL) {
189 { 188 if ((buf = BUF_MEM_new()) == NULL) {
190 if ((buf=BUF_MEM_new()) == NULL) 189 ret = -1;
191 {
192 ret= -1;
193 goto end; 190 goto end;
194 } 191 }
195 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) 192 if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
196 { 193 ret = -1;
197 ret= -1;
198 goto end; 194 goto end;
199 }
200 s->init_buf=buf;
201 buf=NULL;
202 } 195 }
196 s->init_buf = buf;
197 buf = NULL;
198 }
203 199
204 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } 200 if (!ssl3_setup_buffers(s)) {
201 ret = -1;
202 goto end;
203 }
205 204
206 ssl3_init_finished_mac(s); 205 ssl3_init_finished_mac(s);
207 206
208 s->state=SSL23_ST_CW_CLNT_HELLO_A; 207 s->state = SSL23_ST_CW_CLNT_HELLO_A;
209 s->ctx->stats.sess_connect++; 208 s->ctx->stats.sess_connect++;
210 s->init_num=0; 209 s->init_num = 0;
211 break; 210 break;
212 211
213 case SSL23_ST_CW_CLNT_HELLO_A: 212 case SSL23_ST_CW_CLNT_HELLO_A:
214 case SSL23_ST_CW_CLNT_HELLO_B: 213 case SSL23_ST_CW_CLNT_HELLO_B:
215 214
216 s->shutdown=0; 215 s->shutdown = 0;
217 ret=ssl23_client_hello(s); 216 ret = ssl23_client_hello(s);
218 if (ret <= 0) goto end; 217 if (ret <= 0)
219 s->state=SSL23_ST_CR_SRVR_HELLO_A; 218 goto end;
220 s->init_num=0; 219 s->state = SSL23_ST_CR_SRVR_HELLO_A;
220 s->init_num = 0;
221 221
222 break; 222 break;
223 223
224 case SSL23_ST_CR_SRVR_HELLO_A: 224 case SSL23_ST_CR_SRVR_HELLO_A:
225 case SSL23_ST_CR_SRVR_HELLO_B: 225 case SSL23_ST_CR_SRVR_HELLO_B:
226 ret=ssl23_get_server_hello(s); 226 ret = ssl23_get_server_hello(s);
227 if (ret >= 0) cb=NULL; 227 if (ret >= 0)
228 cb = NULL;
228 goto end; 229 goto end;
229 /* break; */ 230 /* break; */
230 231
231 default: 232 default:
232 SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE); 233 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_UNKNOWN_STATE);
233 ret= -1; 234 ret = -1;
234 goto end; 235 goto end;
235 /* break; */ 236 /* break; */
236 } 237 }
237 238
238 if (s->debug) { (void)BIO_flush(s->wbio); } 239 if (s->debug) {
240 (void)BIO_flush(s->wbio);
241 }
239 242
240 if ((cb != NULL) && (s->state != state)) 243 if ((cb != NULL) && (s->state != state)) {
241 { 244 new_state = s->state;
242 new_state=s->state; 245 s->state = state;
243 s->state=state; 246 cb(s, SSL_CB_CONNECT_LOOP, 1);
244 cb(s,SSL_CB_CONNECT_LOOP,1); 247 s->state = new_state;
245 s->state=new_state;
246 }
247 } 248 }
249 }
248end: 250end:
249 s->in_handshake--; 251 s->in_handshake--;
250 if (buf != NULL) 252 if (buf != NULL)
251 BUF_MEM_free(buf); 253 BUF_MEM_free(buf);
252 if (cb != NULL) 254 if (cb != NULL)
253 cb(s,SSL_CB_CONNECT_EXIT,ret); 255 cb(s, SSL_CB_CONNECT_EXIT, ret);
254 return(ret); 256 return (ret);
255 } 257}
256 258
257static int ssl23_no_ssl2_ciphers(SSL *s) 259static int
258 { 260ssl23_no_ssl2_ciphers(SSL *s)
261{
259 SSL_CIPHER *cipher; 262 SSL_CIPHER *cipher;
260 STACK_OF(SSL_CIPHER) *ciphers; 263 STACK_OF(SSL_CIPHER) *ciphers;
261 int i; 264 int i;
262 ciphers = SSL_get_ciphers(s); 265 ciphers = SSL_get_ciphers(s);
263 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) 266 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
264 {
265 cipher = sk_SSL_CIPHER_value(ciphers, i); 267 cipher = sk_SSL_CIPHER_value(ciphers, i);
266 if (cipher->algorithm_ssl == SSL_SSLV2) 268 if (cipher->algorithm_ssl == SSL_SSLV2)
267 return 0; 269 return 0;
268 }
269 return 1;
270 } 270 }
271 return 1;
272}
271 273
272/* Fill a ClientRandom or ServerRandom field of length len. Returns <= 0 274/* Fill a ClientRandom or ServerRandom field of length len. Returns <= 0
273 * on failure, 1 on success. */ 275 * on failure, 1 on success. */
274int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, int len) 276int
275 { 277ssl_fill_hello_random(SSL *s, int server, unsigned char *result, int len)
278{
276 int send_time = 0; 279 int send_time = 0;
277 280
278 if (len < 4) 281 if (len < 4)
@@ -281,22 +284,21 @@ int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, int len)
281 send_time = (s->mode & SSL_MODE_SEND_SERVERHELLO_TIME) != 0; 284 send_time = (s->mode & SSL_MODE_SEND_SERVERHELLO_TIME) != 0;
282 else 285 else
283 send_time = (s->mode & SSL_MODE_SEND_CLIENTHELLO_TIME) != 0; 286 send_time = (s->mode & SSL_MODE_SEND_CLIENTHELLO_TIME) != 0;
284 if (send_time) 287 if (send_time) {
285 {
286 unsigned long Time = (unsigned long)time(NULL); 288 unsigned long Time = (unsigned long)time(NULL);
287 unsigned char *p = result; 289 unsigned char *p = result;
288 l2n(Time, p); 290 l2n(Time, p);
289 return RAND_pseudo_bytes(p, len-4); 291 return RAND_pseudo_bytes(p, len - 4);
290 } 292 } else
291 else
292 return RAND_pseudo_bytes(result, len); 293 return RAND_pseudo_bytes(result, len);
293 } 294}
294 295
295static int ssl23_client_hello(SSL *s) 296static int
296 { 297ssl23_client_hello(SSL *s)
298{
297 unsigned char *buf; 299 unsigned char *buf;
298 unsigned char *p,*d; 300 unsigned char *p, *d;
299 int i,ch_len; 301 int i, ch_len;
300 unsigned long l; 302 unsigned long l;
301 int ssl2_compat; 303 int ssl2_compat;
302 int version = 0, version_major, version_minor; 304 int version = 0, version_major, version_minor;
@@ -320,14 +322,14 @@ static int ssl23_client_hello(SSL *s)
320 * TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the 322 * TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the
321 * answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. 323 * answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2.
322 */ 324 */
323 mask = SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1 325 mask = SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1
324#if !defined(OPENSSL_NO_SSL3) 326#if !defined(OPENSSL_NO_SSL3)
325 |SSL_OP_NO_SSLv3 327 |SSL_OP_NO_SSLv3
326#endif 328#endif
327#if !defined(OPENSSL_NO_SSL2) 329#if !defined(OPENSSL_NO_SSL2)
328 |(ssl2_compat?SSL_OP_NO_SSLv2:0) 330 |(ssl2_compat ? SSL_OP_NO_SSLv2 : 0)
329#endif 331#endif
330 ; 332 ;
331#if !defined(OPENSSL_NO_TLS1_2_CLIENT) 333#if !defined(OPENSSL_NO_TLS1_2_CLIENT)
332 version = TLS1_2_VERSION; 334 version = TLS1_2_VERSION;
333 335
@@ -351,8 +353,7 @@ static int ssl23_client_hello(SSL *s)
351#endif 353#endif
352 354
353#ifndef OPENSSL_NO_TLSEXT 355#ifndef OPENSSL_NO_TLSEXT
354 if (version != SSL2_VERSION) 356 if (version != SSL2_VERSION) {
355 {
356 /* have to disable SSL 2.0 compatibility if we need TLS extensions */ 357 /* have to disable SSL 2.0 compatibility if we need TLS extensions */
357 358
358 if (s->tlsext_hostname != NULL) 359 if (s->tlsext_hostname != NULL)
@@ -363,67 +364,53 @@ static int ssl23_client_hello(SSL *s)
363 if (s->ctx->tlsext_opaque_prf_input_callback != 0 || s->tlsext_opaque_prf_input != NULL) 364 if (s->ctx->tlsext_opaque_prf_input_callback != 0 || s->tlsext_opaque_prf_input != NULL)
364 ssl2_compat = 0; 365 ssl2_compat = 0;
365#endif 366#endif
366 } 367 }
367#endif 368#endif
368 369
369 buf=(unsigned char *)s->init_buf->data; 370 buf = (unsigned char *)s->init_buf->data;
370 if (s->state == SSL23_ST_CW_CLNT_HELLO_A) 371 if (s->state == SSL23_ST_CW_CLNT_HELLO_A) {
371 {
372#if 0 372#if 0
373 /* don't reuse session-id's */ 373 /* don't reuse session-id's */
374 if (!ssl_get_new_session(s,0)) 374 if (!ssl_get_new_session(s, 0)) {
375 { 375 return (-1);
376 return(-1); 376 }
377 }
378#endif 377#endif
379 378
380 p=s->s3->client_random; 379 p = s->s3->client_random;
381 if (ssl_fill_hello_random(s, 0, p, SSL3_RANDOM_SIZE) <= 0) 380 if (ssl_fill_hello_random(s, 0, p, SSL3_RANDOM_SIZE) <= 0)
382 return -1; 381 return -1;
383 382
384 if (version == TLS1_2_VERSION) 383 if (version == TLS1_2_VERSION) {
385 {
386 version_major = TLS1_2_VERSION_MAJOR; 384 version_major = TLS1_2_VERSION_MAJOR;
387 version_minor = TLS1_2_VERSION_MINOR; 385 version_minor = TLS1_2_VERSION_MINOR;
388 } 386 } else if (version == TLS1_1_VERSION) {
389 else if (version == TLS1_1_VERSION)
390 {
391 version_major = TLS1_1_VERSION_MAJOR; 387 version_major = TLS1_1_VERSION_MAJOR;
392 version_minor = TLS1_1_VERSION_MINOR; 388 version_minor = TLS1_1_VERSION_MINOR;
393 } 389 } else if (version == TLS1_VERSION) {
394 else if (version == TLS1_VERSION)
395 {
396 version_major = TLS1_VERSION_MAJOR; 390 version_major = TLS1_VERSION_MAJOR;
397 version_minor = TLS1_VERSION_MINOR; 391 version_minor = TLS1_VERSION_MINOR;
398 } 392 }
399#ifdef OPENSSL_FIPS 393#ifdef OPENSSL_FIPS
400 else if(FIPS_mode()) 394 else if (FIPS_mode()) {
401 {
402 SSLerr(SSL_F_SSL23_CLIENT_HELLO, 395 SSLerr(SSL_F_SSL23_CLIENT_HELLO,
403 SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 396 SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
404 return -1; 397 return -1;
405 } 398 }
406#endif 399#endif
407 else if (version == SSL3_VERSION) 400 else if (version == SSL3_VERSION) {
408 {
409 version_major = SSL3_VERSION_MAJOR; 401 version_major = SSL3_VERSION_MAJOR;
410 version_minor = SSL3_VERSION_MINOR; 402 version_minor = SSL3_VERSION_MINOR;
411 } 403 } else if (version == SSL2_VERSION) {
412 else if (version == SSL2_VERSION)
413 {
414 version_major = SSL2_VERSION_MAJOR; 404 version_major = SSL2_VERSION_MAJOR;
415 version_minor = SSL2_VERSION_MINOR; 405 version_minor = SSL2_VERSION_MINOR;
416 } 406 } else {
417 else 407 SSLerr(SSL_F_SSL23_CLIENT_HELLO, SSL_R_NO_PROTOCOLS_AVAILABLE);
418 { 408 return (-1);
419 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE); 409 }
420 return(-1);
421 }
422 410
423 s->client_version = version; 411 s->client_version = version;
424 412
425 if (ssl2_compat) 413 if (ssl2_compat) {
426 {
427 /* create SSL 2.0 compatible Client Hello */ 414 /* create SSL 2.0 compatible Client Hello */
428 415
429 /* two byte record header will be written last */ 416 /* two byte record header will be written last */
@@ -433,28 +420,27 @@ static int ssl23_client_hello(SSL *s)
433 *(d++) = SSL2_MT_CLIENT_HELLO; 420 *(d++) = SSL2_MT_CLIENT_HELLO;
434 *(d++) = version_major; 421 *(d++) = version_major;
435 *(d++) = version_minor; 422 *(d++) = version_minor;
436 423
437 /* Ciphers supported */ 424 /* Ciphers supported */
438 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0); 425 i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), p, 0);
439 if (i == 0) 426 if (i == 0) {
440 {
441 /* no ciphers */ 427 /* no ciphers */
442 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); 428 SSLerr(SSL_F_SSL23_CLIENT_HELLO, SSL_R_NO_CIPHERS_AVAILABLE);
443 return -1; 429 return -1;
444 } 430 }
445 s2n(i,d); 431 s2n(i, d);
446 p+=i; 432 p += i;
447 433
448 /* put in the session-id length (zero since there is no reuse) */ 434 /* put in the session-id length (zero since there is no reuse) */
449#if 0 435#if 0
450 s->session->session_id_length=0; 436 s->session->session_id_length = 0;
451#endif 437#endif
452 s2n(0,d); 438 s2n(0, d);
453 439
454 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) 440 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
455 ch_len=SSL2_CHALLENGE_LENGTH; 441 ch_len = SSL2_CHALLENGE_LENGTH;
456 else 442 else
457 ch_len=SSL2_MAX_CHALLENGE_LENGTH; 443 ch_len = SSL2_MAX_CHALLENGE_LENGTH;
458 444
459 /* write out sslv2 challenge */ 445 /* write out sslv2 challenge */
460 /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32), 446 /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32),
@@ -462,34 +448,32 @@ static int ssl23_client_hello(SSL *s)
462 or SSL2_MAX_CHALLENGE_LENGTH (16), but leave the 448 or SSL2_MAX_CHALLENGE_LENGTH (16), but leave the
463 check in for futurproofing */ 449 check in for futurproofing */
464 if (SSL3_RANDOM_SIZE < ch_len) 450 if (SSL3_RANDOM_SIZE < ch_len)
465 i=SSL3_RANDOM_SIZE; 451 i = SSL3_RANDOM_SIZE;
466 else 452 else
467 i=ch_len; 453 i = ch_len;
468 s2n(i,d); 454 s2n(i, d);
469 memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE); 455 memset(&(s->s3->client_random[0]), 0, SSL3_RANDOM_SIZE);
470 if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0) 456 if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE - i]), i) <= 0)
471 return -1; 457 return -1;
472 458
473 memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); 459 memcpy(p, &(s->s3->client_random[SSL3_RANDOM_SIZE - i]), i);
474 p+=i; 460 p += i;
475 461
476 i= p- &(buf[2]); 462 i = p- &(buf[2]);
477 buf[0]=((i>>8)&0xff)|0x80; 463 buf[0] = ((i >> 8)&0xff)|0x80;
478 buf[1]=(i&0xff); 464 buf[1] = (i&0xff);
479 465
480 /* number of bytes to write */ 466 /* number of bytes to write */
481 s->init_num=i+2; 467 s->init_num = i + 2;
482 s->init_off=0; 468 s->init_off = 0;
483 469
484 ssl3_finish_mac(s,&(buf[2]),i); 470 ssl3_finish_mac(s, &(buf[2]), i);
485 } 471 } else {
486 else
487 {
488 /* create Client Hello in SSL 3.0/TLS 1.0 format */ 472 /* create Client Hello in SSL 3.0/TLS 1.0 format */
489 473
490 /* do the record header (5 bytes) and handshake message header (4 bytes) last */ 474 /* do the record header (5 bytes) and handshake message header (4 bytes) last */
491 d = p = &(buf[9]); 475 d = p = &(buf[9]);
492 476
493 *(p++) = version_major; 477 *(p++) = version_major;
494 *(p++) = version_minor; 478 *(p++) = version_minor;
495 479
@@ -501,73 +485,68 @@ static int ssl23_client_hello(SSL *s)
501 *(p++) = 0; 485 *(p++) = 0;
502 486
503 /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */ 487 /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */
504 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char); 488 i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), &(p[2]), ssl3_put_cipher_by_char);
505 if (i == 0) 489 if (i == 0) {
506 { 490 SSLerr(SSL_F_SSL23_CLIENT_HELLO, SSL_R_NO_CIPHERS_AVAILABLE);
507 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
508 return -1; 491 return -1;
509 } 492 }
510#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH 493#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
511 /* Some servers hang if client hello > 256 bytes 494 /* Some servers hang if client hello > 256 bytes
512 * as hack workaround chop number of supported ciphers 495 * as hack workaround chop number of supported ciphers
513 * to keep it well below this if we use TLS v1.2 496 * to keep it well below this if we use TLS v1.2
514 */ 497 */
515 if (TLS1_get_version(s) >= TLS1_2_VERSION 498 if (TLS1_get_version(s) >= TLS1_2_VERSION &&
516 && i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH) 499 i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH)
517 i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1; 500 i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1;
518#endif 501#endif
519 s2n(i,p); 502 s2n(i, p);
520 p+=i; 503 p += i;
521 504
522 /* COMPRESSION */ 505 /* COMPRESSION */
523#ifdef OPENSSL_NO_COMP 506#ifdef OPENSSL_NO_COMP
524 *(p++)=1; 507 *(p++) = 1;
525#else 508#else
526 if ((s->options & SSL_OP_NO_COMPRESSION) 509 if ((s->options & SSL_OP_NO_COMPRESSION) ||
527 || !s->ctx->comp_methods) 510 !s->ctx->comp_methods)
528 j=0; 511 j = 0;
529 else 512 else
530 j=sk_SSL_COMP_num(s->ctx->comp_methods); 513 j = sk_SSL_COMP_num(s->ctx->comp_methods);
531 *(p++)=1+j; 514 *(p++) = 1 + j;
532 for (i=0; i<j; i++) 515 for (i = 0; i < j; i++) {
533 { 516 comp = sk_SSL_COMP_value(s->ctx->comp_methods, i);
534 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); 517 *(p++) = comp->id;
535 *(p++)=comp->id; 518 }
536 }
537#endif 519#endif
538 *(p++)=0; /* Add the NULL method */ 520 *(p++)=0; /* Add the NULL method */
539 521
540#ifndef OPENSSL_NO_TLSEXT 522#ifndef OPENSSL_NO_TLSEXT
541 /* TLS extensions*/ 523 /* TLS extensions*/
542 if (ssl_prepare_clienthello_tlsext(s) <= 0) 524 if (ssl_prepare_clienthello_tlsext(s) <= 0) {
543 { 525 SSLerr(SSL_F_SSL23_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT);
544 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
545 return -1; 526 return -1;
546 } 527 }
547 if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) 528 if ((p = ssl_add_clienthello_tlsext(s, p, buf + SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) {
548 { 529 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
549 SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
550 return -1; 530 return -1;
551 } 531 }
552#endif 532#endif
553 533
554 l = p-d; 534 l = p - d;
555 535
556 /* fill in 4-byte handshake header */ 536 /* fill in 4-byte handshake header */
557 d=&(buf[5]); 537 d = &(buf[5]);
558 *(d++)=SSL3_MT_CLIENT_HELLO; 538 *(d++) = SSL3_MT_CLIENT_HELLO;
559 l2n3(l,d); 539 l2n3(l, d);
560 540
561 l += 4; 541 l += 4;
562 542
563 if (l > SSL3_RT_MAX_PLAIN_LENGTH) 543 if (l > SSL3_RT_MAX_PLAIN_LENGTH) {
564 { 544 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
565 SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
566 return -1; 545 return -1;
567 } 546 }
568 547
569 /* fill in 5-byte record header */ 548 /* fill in 5-byte record header */
570 d=buf; 549 d = buf;
571 *(d++) = SSL3_RT_HANDSHAKE; 550 *(d++) = SSL3_RT_HANDSHAKE;
572 *(d++) = version_major; 551 *(d++) = version_major;
573 /* Some servers hang if we use long client hellos 552 /* Some servers hang if we use long client hellos
@@ -577,54 +556,54 @@ static int ssl23_client_hello(SSL *s)
577 *(d++) = 1; 556 *(d++) = 1;
578 else 557 else
579 *(d++) = version_minor; 558 *(d++) = version_minor;
580 s2n((int)l,d); 559 s2n((int)l, d);
581 560
582 /* number of bytes to write */ 561 /* number of bytes to write */
583 s->init_num=p-buf; 562 s->init_num = p - buf;
584 s->init_off=0; 563 s->init_off = 0;
585
586 ssl3_finish_mac(s,&(buf[5]), s->init_num - 5);
587 }
588 564
589 s->state=SSL23_ST_CW_CLNT_HELLO_B; 565 ssl3_finish_mac(s, &(buf[5]), s->init_num - 5);
590 s->init_off=0;
591 } 566 }
592 567
568 s->state = SSL23_ST_CW_CLNT_HELLO_B;
569 s->init_off = 0;
570 }
571
593 /* SSL3_ST_CW_CLNT_HELLO_B */ 572 /* SSL3_ST_CW_CLNT_HELLO_B */
594 ret = ssl23_write_bytes(s); 573 ret = ssl23_write_bytes(s);
595 574
596 if ((ret >= 2) && s->msg_callback) 575 if ((ret >= 2) && s->msg_callback) {
597 {
598 /* Client Hello has been sent; tell msg_callback */ 576 /* Client Hello has been sent; tell msg_callback */
599 577
600 if (ssl2_compat) 578 if (ssl2_compat)
601 s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg); 579 s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data + 2, ret - 2, s, s->msg_callback_arg);
602 else 580 else
603 s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg); 581 s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data + 5, ret - 5, s, s->msg_callback_arg);
604 } 582 }
605 583
606 return ret; 584 return ret;
607 } 585}
608 586
609static int ssl23_get_server_hello(SSL *s) 587static int
610 { 588ssl23_get_server_hello(SSL *s)
589{
611 char buf[8]; 590 char buf[8];
612 unsigned char *p; 591 unsigned char *p;
613 int i; 592 int i;
614 int n; 593 int n;
615 594
616 n=ssl23_read_bytes(s,7); 595 n = ssl23_read_bytes(s, 7);
617 596
618 if (n != 7) return(n); 597 if (n != 7)
619 p=s->packet; 598 return (n);
599 p = s->packet;
620 600
621 memcpy(buf,p,n); 601 memcpy(buf, p, n);
622 602
623 if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) && 603 if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
624 (p[5] == 0x00) && (p[6] == 0x02)) 604 (p[5] == 0x00) && (p[6] == 0x02)) {
625 {
626#ifdef OPENSSL_NO_SSL2 605#ifdef OPENSSL_NO_SSL2
627 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); 606 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNSUPPORTED_PROTOCOL);
628 goto err; 607 goto err;
629#else 608#else
630 /* we are talking sslv2 */ 609 /* we are talking sslv2 */
@@ -632,169 +611,150 @@ static int ssl23_get_server_hello(SSL *s)
632 * sslv2 stuff. */ 611 * sslv2 stuff. */
633 int ch_len; 612 int ch_len;
634 613
635 if (s->options & SSL_OP_NO_SSLv2) 614 if (s->options & SSL_OP_NO_SSLv2) {
636 { 615 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNSUPPORTED_PROTOCOL);
637 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
638 goto err; 616 goto err;
639 } 617 }
640 if (s->s2 == NULL) 618 if (s->s2 == NULL) {
641 {
642 if (!ssl2_new(s)) 619 if (!ssl2_new(s))
643 goto err; 620 goto err;
644 } 621 } else
645 else
646 ssl2_clear(s); 622 ssl2_clear(s);
647 623
648 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) 624 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
649 ch_len=SSL2_CHALLENGE_LENGTH; 625 ch_len = SSL2_CHALLENGE_LENGTH;
650 else 626 else
651 ch_len=SSL2_MAX_CHALLENGE_LENGTH; 627 ch_len = SSL2_MAX_CHALLENGE_LENGTH;
652 628
653 /* write out sslv2 challenge */ 629 /* write out sslv2 challenge */
654 /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32), because 630 /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32), because
655 it is one of SSL2_MAX_CHALLENGE_LENGTH (32) or 631 it is one of SSL2_MAX_CHALLENGE_LENGTH (32) or
656 SSL2_MAX_CHALLENGE_LENGTH (16), but leave the check in for 632 SSL2_MAX_CHALLENGE_LENGTH (16), but leave the check in for
657 futurproofing */ 633 futurproofing */
658 i=(SSL3_RANDOM_SIZE < ch_len) 634 i = (SSL3_RANDOM_SIZE < ch_len) ? SSL3_RANDOM_SIZE : ch_len;
659 ?SSL3_RANDOM_SIZE:ch_len; 635 s->s2->challenge_length = i;
660 s->s2->challenge_length=i;
661 memcpy(s->s2->challenge, 636 memcpy(s->s2->challenge,
662 &(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); 637 &(s->s3->client_random[SSL3_RANDOM_SIZE - i]), i);
663 638
664 if (s->s3 != NULL) ssl3_free(s); 639 if (s->s3 != NULL)
640 ssl3_free(s);
665 641
666 if (!BUF_MEM_grow_clean(s->init_buf, 642 if (!BUF_MEM_grow_clean(s->init_buf,
667 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) 643 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) {
668 { 644 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, ERR_R_BUF_LIB);
669 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB);
670 goto err; 645 goto err;
671 } 646 }
672 647
673 s->state=SSL2_ST_GET_SERVER_HELLO_A; 648 s->state = SSL2_ST_GET_SERVER_HELLO_A;
674 if (!(s->client_version == SSL2_VERSION)) 649 if (!(s->client_version == SSL2_VERSION))
675 /* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */ 650 /* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */
676 s->s2->ssl2_rollback=1; 651 s->s2->ssl2_rollback = 1;
677 652
678 /* setup the 7 bytes we have read so we get them from 653 /* setup the 7 bytes we have read so we get them from
679 * the sslv2 buffer */ 654 * the sslv2 buffer */
680 s->rstate=SSL_ST_READ_HEADER; 655 s->rstate = SSL_ST_READ_HEADER;
681 s->packet_length=n; 656 s->packet_length = n;
682 s->packet= &(s->s2->rbuf[0]); 657 s->packet = &(s->s2->rbuf[0]);
683 memcpy(s->packet,buf,n); 658 memcpy(s->packet, buf, n);
684 s->s2->rbuf_left=n; 659 s->s2->rbuf_left = n;
685 s->s2->rbuf_offs=0; 660 s->s2->rbuf_offs = 0;
686 661
687 /* we have already written one */ 662 /* we have already written one */
688 s->s2->write_sequence=1; 663 s->s2->write_sequence = 1;
689 664
690 s->method=SSLv2_client_method(); 665 s->method = SSLv2_client_method();
691 s->handshake_func=s->method->ssl_connect; 666 s->handshake_func = s->method->ssl_connect;
692#endif 667#endif
693 } 668 } else if (p[1] == SSL3_VERSION_MAJOR &&
694 else if (p[1] == SSL3_VERSION_MAJOR && 669 p[2] <= TLS1_2_VERSION_MINOR &&
695 p[2] <= TLS1_2_VERSION_MINOR && 670 ((p[0] == SSL3_RT_HANDSHAKE && p[5] == SSL3_MT_SERVER_HELLO) ||
696 ((p[0] == SSL3_RT_HANDSHAKE && p[5] == SSL3_MT_SERVER_HELLO) || 671 (p[0] == SSL3_RT_ALERT && p[3] == 0 && p[4] == 2))) {
697 (p[0] == SSL3_RT_ALERT && p[3] == 0 && p[4] == 2)))
698 {
699 /* we have sslv3 or tls1 (server hello or alert) */ 672 /* we have sslv3 or tls1 (server hello or alert) */
700 673
701 if ((p[2] == SSL3_VERSION_MINOR) && 674 if ((p[2] == SSL3_VERSION_MINOR) &&
702 !(s->options & SSL_OP_NO_SSLv3)) 675 !(s->options & SSL_OP_NO_SSLv3)) {
703 {
704#ifdef OPENSSL_FIPS 676#ifdef OPENSSL_FIPS
705 if(FIPS_mode()) 677 if (FIPS_mode()) {
706 {
707 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, 678 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
708 SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 679 SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
709 goto err; 680 goto err;
710 }
711#endif
712 s->version=SSL3_VERSION;
713 s->method=SSLv3_client_method();
714 }
715 else if ((p[2] == TLS1_VERSION_MINOR) &&
716 !(s->options & SSL_OP_NO_TLSv1))
717 {
718 s->version=TLS1_VERSION;
719 s->method=TLSv1_client_method();
720 } 681 }
721 else if ((p[2] == TLS1_1_VERSION_MINOR) && 682#endif
722 !(s->options & SSL_OP_NO_TLSv1_1)) 683 s->version = SSL3_VERSION;
723 { 684 s->method = SSLv3_client_method();
724 s->version=TLS1_1_VERSION; 685 } else if ((p[2] == TLS1_VERSION_MINOR) &&
725 s->method=TLSv1_1_client_method(); 686 !(s->options & SSL_OP_NO_TLSv1)) {
726 } 687 s->version = TLS1_VERSION;
727 else if ((p[2] == TLS1_2_VERSION_MINOR) && 688 s->method = TLSv1_client_method();
728 !(s->options & SSL_OP_NO_TLSv1_2)) 689 } else if ((p[2] == TLS1_1_VERSION_MINOR) &&
729 { 690 !(s->options & SSL_OP_NO_TLSv1_1)) {
730 s->version=TLS1_2_VERSION; 691 s->version = TLS1_1_VERSION;
731 s->method=TLSv1_2_client_method(); 692 s->method = TLSv1_1_client_method();
732 } 693 } else if ((p[2] == TLS1_2_VERSION_MINOR) &&
733 else 694 !(s->options & SSL_OP_NO_TLSv1_2)) {
734 { 695 s->version = TLS1_2_VERSION;
735 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); 696 s->method = TLSv1_2_client_method();
697 } else {
698 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNSUPPORTED_PROTOCOL);
736 goto err; 699 goto err;
737 } 700 }
738 701
739 if (p[0] == SSL3_RT_ALERT && p[5] != SSL3_AL_WARNING) 702 if (p[0] == SSL3_RT_ALERT && p[5] != SSL3_AL_WARNING) {
740 {
741 /* fatal alert */ 703 /* fatal alert */
742 704
743 void (*cb)(const SSL *ssl,int type,int val)=NULL; 705 void (*cb)(const SSL *ssl, int type, int val) = NULL;
744 int j; 706 int j;
745 707
746 if (s->info_callback != NULL) 708 if (s->info_callback != NULL)
747 cb=s->info_callback; 709 cb = s->info_callback;
748 else if (s->ctx->info_callback != NULL) 710 else if (s->ctx->info_callback != NULL)
749 cb=s->ctx->info_callback; 711 cb = s->ctx->info_callback;
750 712
751 i=p[5]; 713 i = p[5];
752 if (cb != NULL) 714 if (cb != NULL) {
753 { 715 j = (i << 8) | p[6];
754 j=(i<<8)|p[6]; 716 cb(s, SSL_CB_READ_ALERT, j);
755 cb(s,SSL_CB_READ_ALERT,j); 717 }
756 } 718
757
758 if (s->msg_callback) 719 if (s->msg_callback)
759 s->msg_callback(0, s->version, SSL3_RT_ALERT, p+5, 2, s, s->msg_callback_arg); 720 s->msg_callback(0, s->version, SSL3_RT_ALERT, p + 5, 2, s, s->msg_callback_arg);
760 721
761 s->rwstate=SSL_NOTHING; 722 s->rwstate = SSL_NOTHING;
762 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]); 723 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_AD_REASON_OFFSET + p[6]);
763 goto err; 724 goto err;
764 } 725 }
765 726
766 if (!ssl_init_wbio_buffer(s,1)) goto err; 727 if (!ssl_init_wbio_buffer(s, 1))
728 goto err;
767 729
768 /* we are in this state */ 730 /* we are in this state */
769 s->state=SSL3_ST_CR_SRVR_HELLO_A; 731 s->state = SSL3_ST_CR_SRVR_HELLO_A;
770 732
771 /* put the 7 bytes we have read into the input buffer 733 /* put the 7 bytes we have read into the input buffer
772 * for SSLv3 */ 734 * for SSLv3 */
773 s->rstate=SSL_ST_READ_HEADER; 735 s->rstate = SSL_ST_READ_HEADER;
774 s->packet_length=n; 736 s->packet_length = n;
775 if (s->s3->rbuf.buf == NULL) 737 if (s->s3->rbuf.buf == NULL)
776 if (!ssl3_setup_read_buffer(s)) 738 if (!ssl3_setup_read_buffer(s))
777 goto err; 739 goto err;
778 s->packet= &(s->s3->rbuf.buf[0]); 740 s->packet = &(s->s3->rbuf.buf[0]);
779 memcpy(s->packet,buf,n); 741 memcpy(s->packet, buf, n);
780 s->s3->rbuf.left=n; 742 s->s3->rbuf.left = n;
781 s->s3->rbuf.offset=0; 743 s->s3->rbuf.offset = 0;
782 744
783 s->handshake_func=s->method->ssl_connect; 745 s->handshake_func = s->method->ssl_connect;
784 } 746 } else {
785 else 747 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNKNOWN_PROTOCOL);
786 {
787 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL);
788 goto err; 748 goto err;
789 } 749 }
790 s->init_num=0; 750 s->init_num = 0;
791 751
792 /* Since, if we are sending a ssl23 client hello, we are not 752 /* Since, if we are sending a ssl23 client hello, we are not
793 * reusing a session-id */ 753 * reusing a session-id */
794 if (!ssl_get_new_session(s,0)) 754 if (!ssl_get_new_session(s, 0))
795 goto err; 755 goto err;
796 756
797 return(SSL_connect(s)); 757 return (SSL_connect(s));
798err: 758err:
799 return(-1); 759 return (-1);
800 } 760}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-20 06:41:15 +0000