diff options
| author | cvs2svn <admin@example.com> | 2021-08-18 16:06:57 +0000 |
|---|---|---|
| committer | cvs2svn <admin@example.com> | 2021-08-18 16:06:57 +0000 |
| commit | d56c8fa8260d226f98b26f017b45b9c2b135f38d (patch) | |
| tree | 348178b41617813cc93787187984a734ef8379ca /src/lib/libssl/ssl_both.c | |
| parent | 18b9c1bcab7c37d8c5bd05b8e0d14d0c59d96650 (diff) | |
| download | openbsd-tb_20210818.tar.gz openbsd-tb_20210818.tar.bz2 openbsd-tb_20210818.zip | |
This commit was manufactured by cvs2git to create tag 'tb_20210818'.tb_20210818
Diffstat (limited to 'src/lib/libssl/ssl_both.c')
| -rw-r--r-- | src/lib/libssl/ssl_both.c | 747 |
1 files changed, 0 insertions, 747 deletions
diff --git a/src/lib/libssl/ssl_both.c b/src/lib/libssl/ssl_both.c deleted file mode 100644 index 03c5a2f1e9..0000000000 --- a/src/lib/libssl/ssl_both.c +++ /dev/null | |||
| @@ -1,747 +0,0 @@ | |||
| 1 | /* $OpenBSD: ssl_both.c,v 1.33 2021/07/01 17:53:39 jsing Exp $ */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | /* ==================================================================== | ||
| 59 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. | ||
| 60 | * | ||
| 61 | * Redistribution and use in source and binary forms, with or without | ||
| 62 | * modification, are permitted provided that the following conditions | ||
| 63 | * are met: | ||
| 64 | * | ||
| 65 | * 1. Redistributions of source code must retain the above copyright | ||
| 66 | * notice, this list of conditions and the following disclaimer. | ||
| 67 | * | ||
| 68 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 69 | * notice, this list of conditions and the following disclaimer in | ||
| 70 | * the documentation and/or other materials provided with the | ||
| 71 | * distribution. | ||
| 72 | * | ||
| 73 | * 3. All advertising materials mentioning features or use of this | ||
| 74 | * software must display the following acknowledgment: | ||
| 75 | * "This product includes software developed by the OpenSSL Project | ||
| 76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 77 | * | ||
| 78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 79 | * endorse or promote products derived from this software without | ||
| 80 | * prior written permission. For written permission, please contact | ||
| 81 | * openssl-core@openssl.org. | ||
| 82 | * | ||
| 83 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 84 | * nor may "OpenSSL" appear in their names without prior written | ||
| 85 | * permission of the OpenSSL Project. | ||
| 86 | * | ||
| 87 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 88 | * acknowledgment: | ||
| 89 | * "This product includes software developed by the OpenSSL Project | ||
| 90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 91 | * | ||
| 92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 104 | * ==================================================================== | ||
| 105 | * | ||
| 106 | * This product includes cryptographic software written by Eric Young | ||
| 107 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 108 | * Hudson (tjh@cryptsoft.com). | ||
| 109 | * | ||
| 110 | */ | ||
| 111 | /* ==================================================================== | ||
| 112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | ||
| 113 | * ECC cipher suite support in OpenSSL originally developed by | ||
| 114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | ||
| 115 | */ | ||
| 116 | |||
| 117 | #include <limits.h> | ||
| 118 | #include <stdio.h> | ||
| 119 | #include <string.h> | ||
| 120 | |||
| 121 | #include <openssl/buffer.h> | ||
| 122 | #include <openssl/evp.h> | ||
| 123 | #include <openssl/objects.h> | ||
| 124 | #include <openssl/x509.h> | ||
| 125 | |||
| 126 | #include "bytestring.h" | ||
| 127 | #include "dtls_locl.h" | ||
| 128 | #include "ssl_locl.h" | ||
| 129 | |||
| 130 | /* | ||
| 131 | * Send s->internal->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or | ||
| 132 | * SSL3_RT_CHANGE_CIPHER_SPEC). | ||
| 133 | */ | ||
| 134 | int | ||
| 135 | ssl3_do_write(SSL *s, int type) | ||
| 136 | { | ||
| 137 | int ret; | ||
| 138 | |||
| 139 | ret = ssl3_write_bytes(s, type, &s->internal->init_buf->data[s->internal->init_off], | ||
| 140 | s->internal->init_num); | ||
| 141 | if (ret < 0) | ||
| 142 | return (-1); | ||
| 143 | |||
| 144 | if (type == SSL3_RT_HANDSHAKE) | ||
| 145 | /* | ||
| 146 | * Should not be done for 'Hello Request's, but in that case | ||
| 147 | * we'll ignore the result anyway. | ||
| 148 | */ | ||
| 149 | tls1_transcript_record(s, | ||
| 150 | (unsigned char *)&s->internal->init_buf->data[s->internal->init_off], ret); | ||
| 151 | |||
| 152 | if (ret == s->internal->init_num) { | ||
| 153 | if (s->internal->msg_callback) | ||
| 154 | s->internal->msg_callback(1, s->version, type, s->internal->init_buf->data, | ||
| 155 | (size_t)(s->internal->init_off + s->internal->init_num), s, | ||
| 156 | s->internal->msg_callback_arg); | ||
| 157 | return (1); | ||
| 158 | } | ||
| 159 | |||
| 160 | s->internal->init_off += ret; | ||
| 161 | s->internal->init_num -= ret; | ||
| 162 | |||
| 163 | return (0); | ||
| 164 | } | ||
| 165 | |||
| 166 | int | ||
| 167 | ssl3_send_finished(SSL *s, int state_a, int state_b) | ||
| 168 | { | ||
| 169 | CBB cbb, finished; | ||
| 170 | |||
| 171 | memset(&cbb, 0, sizeof(cbb)); | ||
| 172 | |||
| 173 | if (S3I(s)->hs.state == state_a) { | ||
| 174 | if (!tls12_derive_finished(s)) | ||
| 175 | goto err; | ||
| 176 | |||
| 177 | /* Copy finished so we can use it for renegotiation checks. */ | ||
| 178 | if (!s->server) { | ||
| 179 | memcpy(S3I(s)->previous_client_finished, | ||
| 180 | S3I(s)->hs.finished, S3I(s)->hs.finished_len); | ||
| 181 | S3I(s)->previous_client_finished_len = | ||
| 182 | S3I(s)->hs.finished_len; | ||
| 183 | } else { | ||
| 184 | memcpy(S3I(s)->previous_server_finished, | ||
| 185 | S3I(s)->hs.finished, S3I(s)->hs.finished_len); | ||
| 186 | S3I(s)->previous_server_finished_len = | ||
| 187 | S3I(s)->hs.finished_len; | ||
| 188 | } | ||
| 189 | |||
| 190 | if (!ssl3_handshake_msg_start(s, &cbb, &finished, | ||
| 191 | SSL3_MT_FINISHED)) | ||
| 192 | goto err; | ||
| 193 | if (!CBB_add_bytes(&finished, S3I(s)->hs.finished, | ||
| 194 | S3I(s)->hs.finished_len)) | ||
| 195 | goto err; | ||
| 196 | if (!ssl3_handshake_msg_finish(s, &cbb)) | ||
| 197 | goto err; | ||
| 198 | |||
| 199 | S3I(s)->hs.state = state_b; | ||
| 200 | } | ||
| 201 | |||
| 202 | return (ssl3_handshake_write(s)); | ||
| 203 | |||
| 204 | err: | ||
| 205 | CBB_cleanup(&cbb); | ||
| 206 | |||
| 207 | return (-1); | ||
| 208 | } | ||
| 209 | |||
| 210 | int | ||
| 211 | ssl3_get_finished(SSL *s, int a, int b) | ||
| 212 | { | ||
| 213 | int al, ok, md_len; | ||
| 214 | long n; | ||
| 215 | CBS cbs; | ||
| 216 | |||
| 217 | /* should actually be 36+4 :-) */ | ||
| 218 | n = ssl3_get_message(s, a, b, SSL3_MT_FINISHED, 64, &ok); | ||
| 219 | if (!ok) | ||
| 220 | return ((int)n); | ||
| 221 | |||
| 222 | /* If this occurs, we have missed a message */ | ||
| 223 | if (!S3I(s)->change_cipher_spec) { | ||
| 224 | al = SSL_AD_UNEXPECTED_MESSAGE; | ||
| 225 | SSLerror(s, SSL_R_GOT_A_FIN_BEFORE_A_CCS); | ||
| 226 | goto fatal_err; | ||
| 227 | } | ||
| 228 | S3I(s)->change_cipher_spec = 0; | ||
| 229 | |||
| 230 | md_len = TLS1_FINISH_MAC_LENGTH; | ||
| 231 | |||
| 232 | if (n < 0) { | ||
| 233 | al = SSL_AD_DECODE_ERROR; | ||
| 234 | SSLerror(s, SSL_R_BAD_DIGEST_LENGTH); | ||
| 235 | goto fatal_err; | ||
| 236 | } | ||
| 237 | |||
| 238 | CBS_init(&cbs, s->internal->init_msg, n); | ||
| 239 | |||
| 240 | if (S3I(s)->hs.peer_finished_len != md_len || | ||
| 241 | CBS_len(&cbs) != md_len) { | ||
| 242 | al = SSL_AD_DECODE_ERROR; | ||
| 243 | SSLerror(s, SSL_R_BAD_DIGEST_LENGTH); | ||
| 244 | goto fatal_err; | ||
| 245 | } | ||
| 246 | |||
| 247 | if (!CBS_mem_equal(&cbs, S3I(s)->hs.peer_finished, CBS_len(&cbs))) { | ||
| 248 | al = SSL_AD_DECRYPT_ERROR; | ||
| 249 | SSLerror(s, SSL_R_DIGEST_CHECK_FAILED); | ||
| 250 | goto fatal_err; | ||
| 251 | } | ||
| 252 | |||
| 253 | /* Copy finished so we can use it for renegotiation checks. */ | ||
| 254 | OPENSSL_assert(md_len <= EVP_MAX_MD_SIZE); | ||
| 255 | if (s->server) { | ||
| 256 | memcpy(S3I(s)->previous_client_finished, | ||
| 257 | S3I(s)->hs.peer_finished, md_len); | ||
| 258 | S3I(s)->previous_client_finished_len = md_len; | ||
| 259 | } else { | ||
| 260 | memcpy(S3I(s)->previous_server_finished, | ||
| 261 | S3I(s)->hs.peer_finished, md_len); | ||
| 262 | S3I(s)->previous_server_finished_len = md_len; | ||
| 263 | } | ||
| 264 | |||
| 265 | return (1); | ||
| 266 | fatal_err: | ||
| 267 | ssl3_send_alert(s, SSL3_AL_FATAL, al); | ||
| 268 | return (0); | ||
| 269 | } | ||
| 270 | |||
| 271 | int | ||
| 272 | ssl3_send_change_cipher_spec(SSL *s, int a, int b) | ||
| 273 | { | ||
| 274 | size_t outlen; | ||
| 275 | CBB cbb; | ||
| 276 | |||
| 277 | memset(&cbb, 0, sizeof(cbb)); | ||
| 278 | |||
| 279 | if (S3I(s)->hs.state == a) { | ||
| 280 | if (!CBB_init_fixed(&cbb, s->internal->init_buf->data, | ||
| 281 | s->internal->init_buf->length)) | ||
| 282 | goto err; | ||
| 283 | if (!CBB_add_u8(&cbb, SSL3_MT_CCS)) | ||
| 284 | goto err; | ||
| 285 | if (!CBB_finish(&cbb, NULL, &outlen)) | ||
| 286 | goto err; | ||
| 287 | |||
| 288 | if (outlen > INT_MAX) | ||
| 289 | goto err; | ||
| 290 | |||
| 291 | s->internal->init_num = (int)outlen; | ||
| 292 | s->internal->init_off = 0; | ||
| 293 | |||
| 294 | if (SSL_is_dtls(s)) { | ||
| 295 | D1I(s)->handshake_write_seq = | ||
| 296 | D1I(s)->next_handshake_write_seq; | ||
| 297 | dtls1_set_message_header_int(s, SSL3_MT_CCS, 0, | ||
| 298 | D1I(s)->handshake_write_seq, 0, 0); | ||
| 299 | dtls1_buffer_message(s, 1); | ||
| 300 | } | ||
| 301 | |||
| 302 | S3I(s)->hs.state = b; | ||
| 303 | } | ||
| 304 | |||
| 305 | /* SSL3_ST_CW_CHANGE_B */ | ||
| 306 | return ssl3_record_write(s, SSL3_RT_CHANGE_CIPHER_SPEC); | ||
| 307 | |||
| 308 | err: | ||
| 309 | CBB_cleanup(&cbb); | ||
| 310 | |||
| 311 | return -1; | ||
| 312 | } | ||
| 313 | |||
| 314 | static int | ||
| 315 | ssl3_add_cert(CBB *cbb, X509 *x) | ||
| 316 | { | ||
| 317 | unsigned char *data; | ||
| 318 | int cert_len; | ||
| 319 | int ret = 0; | ||
| 320 | CBB cert; | ||
| 321 | |||
| 322 | if ((cert_len = i2d_X509(x, NULL)) < 0) | ||
| 323 | goto err; | ||
| 324 | |||
| 325 | if (!CBB_add_u24_length_prefixed(cbb, &cert)) | ||
| 326 | goto err; | ||
| 327 | if (!CBB_add_space(&cert, &data, cert_len)) | ||
| 328 | goto err; | ||
| 329 | if (i2d_X509(x, &data) < 0) | ||
| 330 | goto err; | ||
| 331 | if (!CBB_flush(cbb)) | ||
| 332 | goto err; | ||
| 333 | |||
| 334 | ret = 1; | ||
| 335 | |||
| 336 | err: | ||
| 337 | return (ret); | ||
| 338 | } | ||
| 339 | |||
| 340 | int | ||
| 341 | ssl3_output_cert_chain(SSL *s, CBB *cbb, CERT_PKEY *cpk) | ||
| 342 | { | ||
| 343 | X509_STORE_CTX *xs_ctx = NULL; | ||
| 344 | STACK_OF(X509) *chain; | ||
| 345 | CBB cert_list; | ||
| 346 | X509 *x; | ||
| 347 | int ret = 0; | ||
| 348 | int i; | ||
| 349 | |||
| 350 | if (!CBB_add_u24_length_prefixed(cbb, &cert_list)) | ||
| 351 | goto err; | ||
| 352 | |||
| 353 | /* Send an empty certificate list when no certificate is available. */ | ||
| 354 | if (cpk == NULL) | ||
| 355 | goto done; | ||
| 356 | |||
| 357 | if ((chain = cpk->chain) == NULL) | ||
| 358 | chain = s->ctx->extra_certs; | ||
| 359 | |||
| 360 | if (chain != NULL || (s->internal->mode & SSL_MODE_NO_AUTO_CHAIN)) { | ||
| 361 | if (!ssl3_add_cert(&cert_list, cpk->x509)) | ||
| 362 | goto err; | ||
| 363 | } else { | ||
| 364 | if ((xs_ctx = X509_STORE_CTX_new()) == NULL) | ||
| 365 | goto err; | ||
| 366 | if (!X509_STORE_CTX_init(xs_ctx, s->ctx->cert_store, | ||
| 367 | cpk->x509, NULL)) { | ||
| 368 | SSLerror(s, ERR_R_X509_LIB); | ||
| 369 | goto err; | ||
| 370 | } | ||
| 371 | X509_VERIFY_PARAM_set_flags(X509_STORE_CTX_get0_param(xs_ctx), | ||
| 372 | X509_V_FLAG_LEGACY_VERIFY); | ||
| 373 | X509_verify_cert(xs_ctx); | ||
| 374 | ERR_clear_error(); | ||
| 375 | chain = xs_ctx->chain; | ||
| 376 | } | ||
| 377 | |||
| 378 | for (i = 0; i < sk_X509_num(chain); i++) { | ||
| 379 | x = sk_X509_value(chain, i); | ||
| 380 | if (!ssl3_add_cert(&cert_list, x)) | ||
| 381 | goto err; | ||
| 382 | } | ||
| 383 | |||
| 384 | done: | ||
| 385 | if (!CBB_flush(cbb)) | ||
| 386 | goto err; | ||
| 387 | |||
| 388 | ret = 1; | ||
| 389 | |||
| 390 | err: | ||
| 391 | X509_STORE_CTX_free(xs_ctx); | ||
| 392 | |||
| 393 | return (ret); | ||
| 394 | } | ||
| 395 | |||
| 396 | /* | ||
| 397 | * Obtain handshake message of message type 'mt' (any if mt == -1), | ||
| 398 | * maximum acceptable body length 'max'. | ||
| 399 | * The first four bytes (msg_type and length) are read in state 'st1', | ||
| 400 | * the body is read in state 'stn'. | ||
| 401 | */ | ||
| 402 | long | ||
| 403 | ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) | ||
| 404 | { | ||
| 405 | unsigned char *p; | ||
| 406 | uint32_t l; | ||
| 407 | long n; | ||
| 408 | int i, al; | ||
| 409 | CBS cbs; | ||
| 410 | uint8_t u8; | ||
| 411 | |||
| 412 | if (SSL_is_dtls(s)) | ||
| 413 | return (dtls1_get_message(s, st1, stn, mt, max, ok)); | ||
| 414 | |||
| 415 | if (S3I(s)->hs.tls12.reuse_message) { | ||
| 416 | S3I(s)->hs.tls12.reuse_message = 0; | ||
| 417 | if ((mt >= 0) && (S3I(s)->hs.tls12.message_type != mt)) { | ||
| 418 | al = SSL_AD_UNEXPECTED_MESSAGE; | ||
| 419 | SSLerror(s, SSL_R_UNEXPECTED_MESSAGE); | ||
| 420 | goto fatal_err; | ||
| 421 | } | ||
| 422 | *ok = 1; | ||
| 423 | s->internal->init_msg = s->internal->init_buf->data + 4; | ||
| 424 | s->internal->init_num = (int)S3I(s)->hs.tls12.message_size; | ||
| 425 | return s->internal->init_num; | ||
| 426 | } | ||
| 427 | |||
| 428 | p = (unsigned char *)s->internal->init_buf->data; | ||
| 429 | |||
| 430 | /* s->internal->init_num < 4 */ | ||
| 431 | if (S3I(s)->hs.state == st1) { | ||
| 432 | int skip_message; | ||
| 433 | |||
| 434 | do { | ||
| 435 | while (s->internal->init_num < 4) { | ||
| 436 | i = s->method->ssl_read_bytes(s, | ||
| 437 | SSL3_RT_HANDSHAKE, &p[s->internal->init_num], | ||
| 438 | 4 - s->internal->init_num, 0); | ||
| 439 | if (i <= 0) { | ||
| 440 | s->internal->rwstate = SSL_READING; | ||
| 441 | *ok = 0; | ||
| 442 | return i; | ||
| 443 | } | ||
| 444 | s->internal->init_num += i; | ||
| 445 | } | ||
| 446 | |||
| 447 | skip_message = 0; | ||
| 448 | if (!s->server && p[0] == SSL3_MT_HELLO_REQUEST) { | ||
| 449 | /* | ||
| 450 | * The server may always send 'Hello Request' | ||
| 451 | * messages -- we are doing a handshake anyway | ||
| 452 | * now, so ignore them if their format is | ||
| 453 | * correct. Does not count for 'Finished' MAC. | ||
| 454 | */ | ||
| 455 | if (p[1] == 0 && p[2] == 0 &&p[3] == 0) { | ||
| 456 | s->internal->init_num = 0; | ||
| 457 | skip_message = 1; | ||
| 458 | |||
| 459 | if (s->internal->msg_callback) | ||
| 460 | s->internal->msg_callback(0, s->version, | ||
| 461 | SSL3_RT_HANDSHAKE, p, 4, s, | ||
| 462 | s->internal->msg_callback_arg); | ||
| 463 | } | ||
| 464 | } | ||
| 465 | } while (skip_message); | ||
| 466 | |||
| 467 | /* s->internal->init_num == 4 */ | ||
| 468 | |||
| 469 | if ((mt >= 0) && (*p != mt)) { | ||
| 470 | al = SSL_AD_UNEXPECTED_MESSAGE; | ||
| 471 | SSLerror(s, SSL_R_UNEXPECTED_MESSAGE); | ||
| 472 | goto fatal_err; | ||
| 473 | } | ||
| 474 | |||
| 475 | CBS_init(&cbs, p, 4); | ||
| 476 | if (!CBS_get_u8(&cbs, &u8) || | ||
| 477 | !CBS_get_u24(&cbs, &l)) { | ||
| 478 | SSLerror(s, ERR_R_BUF_LIB); | ||
| 479 | goto err; | ||
| 480 | } | ||
| 481 | S3I(s)->hs.tls12.message_type = u8; | ||
| 482 | |||
| 483 | if (l > (unsigned long)max) { | ||
| 484 | al = SSL_AD_ILLEGAL_PARAMETER; | ||
| 485 | SSLerror(s, SSL_R_EXCESSIVE_MESSAGE_SIZE); | ||
| 486 | goto fatal_err; | ||
| 487 | } | ||
| 488 | if (l && !BUF_MEM_grow_clean(s->internal->init_buf, l + 4)) { | ||
| 489 | SSLerror(s, ERR_R_BUF_LIB); | ||
| 490 | goto err; | ||
| 491 | } | ||
| 492 | S3I(s)->hs.tls12.message_size = l; | ||
| 493 | S3I(s)->hs.state = stn; | ||
| 494 | |||
| 495 | s->internal->init_msg = s->internal->init_buf->data + 4; | ||
| 496 | s->internal->init_num = 0; | ||
| 497 | } | ||
| 498 | |||
| 499 | /* next state (stn) */ | ||
| 500 | p = s->internal->init_msg; | ||
| 501 | n = S3I(s)->hs.tls12.message_size - s->internal->init_num; | ||
| 502 | while (n > 0) { | ||
| 503 | i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, | ||
| 504 | &p[s->internal->init_num], n, 0); | ||
| 505 | if (i <= 0) { | ||
| 506 | s->internal->rwstate = SSL_READING; | ||
| 507 | *ok = 0; | ||
| 508 | return i; | ||
| 509 | } | ||
| 510 | s->internal->init_num += i; | ||
| 511 | n -= i; | ||
| 512 | } | ||
| 513 | |||
| 514 | /* Feed this message into MAC computation. */ | ||
| 515 | if (s->internal->mac_packet) { | ||
| 516 | tls1_transcript_record(s, (unsigned char *)s->internal->init_buf->data, | ||
| 517 | s->internal->init_num + 4); | ||
| 518 | |||
| 519 | if (s->internal->msg_callback) | ||
| 520 | s->internal->msg_callback(0, s->version, | ||
| 521 | SSL3_RT_HANDSHAKE, s->internal->init_buf->data, | ||
| 522 | (size_t)s->internal->init_num + 4, s, | ||
| 523 | s->internal->msg_callback_arg); | ||
| 524 | } | ||
| 525 | |||
| 526 | *ok = 1; | ||
| 527 | return (s->internal->init_num); | ||
| 528 | |||
| 529 | fatal_err: | ||
| 530 | ssl3_send_alert(s, SSL3_AL_FATAL, al); | ||
| 531 | err: | ||
| 532 | *ok = 0; | ||
| 533 | return (-1); | ||
| 534 | } | ||
| 535 | |||
| 536 | int | ||
| 537 | ssl_cert_type(X509 *x, EVP_PKEY *pkey) | ||
| 538 | { | ||
| 539 | EVP_PKEY *pk; | ||
| 540 | int ret = -1, i; | ||
| 541 | |||
| 542 | if (pkey == NULL) | ||
| 543 | pk = X509_get_pubkey(x); | ||
| 544 | else | ||
| 545 | pk = pkey; | ||
| 546 | if (pk == NULL) | ||
| 547 | goto err; | ||
| 548 | |||
| 549 | i = pk->type; | ||
| 550 | if (i == EVP_PKEY_RSA) { | ||
| 551 | ret = SSL_PKEY_RSA; | ||
| 552 | } else if (i == EVP_PKEY_EC) { | ||
| 553 | ret = SSL_PKEY_ECC; | ||
| 554 | } else if (i == NID_id_GostR3410_2001 || | ||
| 555 | i == NID_id_GostR3410_2001_cc) { | ||
| 556 | ret = SSL_PKEY_GOST01; | ||
| 557 | } | ||
| 558 | |||
| 559 | err: | ||
| 560 | if (!pkey) | ||
| 561 | EVP_PKEY_free(pk); | ||
| 562 | return (ret); | ||
| 563 | } | ||
| 564 | |||
| 565 | int | ||
| 566 | ssl_verify_alarm_type(long type) | ||
| 567 | { | ||
| 568 | int al; | ||
| 569 | |||
| 570 | switch (type) { | ||
| 571 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: | ||
| 572 | case X509_V_ERR_UNABLE_TO_GET_CRL: | ||
| 573 | case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: | ||
| 574 | al = SSL_AD_UNKNOWN_CA; | ||
| 575 | break; | ||
| 576 | case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: | ||
| 577 | case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: | ||
| 578 | case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: | ||
| 579 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: | ||
| 580 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: | ||
| 581 | case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: | ||
| 582 | case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: | ||
| 583 | case X509_V_ERR_CERT_NOT_YET_VALID: | ||
| 584 | case X509_V_ERR_CRL_NOT_YET_VALID: | ||
| 585 | case X509_V_ERR_CERT_UNTRUSTED: | ||
| 586 | case X509_V_ERR_CERT_REJECTED: | ||
| 587 | al = SSL_AD_BAD_CERTIFICATE; | ||
| 588 | break; | ||
| 589 | case X509_V_ERR_CERT_SIGNATURE_FAILURE: | ||
| 590 | case X509_V_ERR_CRL_SIGNATURE_FAILURE: | ||
| 591 | al = SSL_AD_DECRYPT_ERROR; | ||
| 592 | break; | ||
| 593 | case X509_V_ERR_CERT_HAS_EXPIRED: | ||
| 594 | case X509_V_ERR_CRL_HAS_EXPIRED: | ||
| 595 | al = SSL_AD_CERTIFICATE_EXPIRED; | ||
| 596 | break; | ||
| 597 | case X509_V_ERR_CERT_REVOKED: | ||
| 598 | al = SSL_AD_CERTIFICATE_REVOKED; | ||
| 599 | break; | ||
| 600 | case X509_V_ERR_OUT_OF_MEM: | ||
| 601 | al = SSL_AD_INTERNAL_ERROR; | ||
| 602 | break; | ||
| 603 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: | ||
| 604 | case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: | ||
| 605 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: | ||
| 606 | case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: | ||
| 607 | case X509_V_ERR_CERT_CHAIN_TOO_LONG: | ||
| 608 | case X509_V_ERR_PATH_LENGTH_EXCEEDED: | ||
| 609 | case X509_V_ERR_INVALID_CA: | ||
| 610 | al = SSL_AD_UNKNOWN_CA; | ||
| 611 | break; | ||
| 612 | case X509_V_ERR_APPLICATION_VERIFICATION: | ||
| 613 | al = SSL_AD_HANDSHAKE_FAILURE; | ||
| 614 | break; | ||
| 615 | case X509_V_ERR_INVALID_PURPOSE: | ||
| 616 | al = SSL_AD_UNSUPPORTED_CERTIFICATE; | ||
| 617 | break; | ||
| 618 | default: | ||
| 619 | al = SSL_AD_CERTIFICATE_UNKNOWN; | ||
| 620 | break; | ||
| 621 | } | ||
| 622 | return (al); | ||
| 623 | } | ||
| 624 | |||
| 625 | int | ||
| 626 | ssl3_setup_init_buffer(SSL *s) | ||
| 627 | { | ||
| 628 | BUF_MEM *buf = NULL; | ||
| 629 | |||
| 630 | if (s->internal->init_buf != NULL) | ||
| 631 | return (1); | ||
| 632 | |||
| 633 | if ((buf = BUF_MEM_new()) == NULL) | ||
| 634 | goto err; | ||
| 635 | if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) | ||
| 636 | goto err; | ||
| 637 | |||
| 638 | s->internal->init_buf = buf; | ||
| 639 | return (1); | ||
| 640 | |||
| 641 | err: | ||
| 642 | BUF_MEM_free(buf); | ||
| 643 | return (0); | ||
| 644 | } | ||
| 645 | |||
| 646 | void | ||
| 647 | ssl3_release_init_buffer(SSL *s) | ||
| 648 | { | ||
| 649 | BUF_MEM_free(s->internal->init_buf); | ||
| 650 | s->internal->init_buf = NULL; | ||
| 651 | s->internal->init_msg = NULL; | ||
| 652 | s->internal->init_num = 0; | ||
| 653 | s->internal->init_off = 0; | ||
| 654 | } | ||
| 655 | |||
| 656 | int | ||
| 657 | ssl3_setup_read_buffer(SSL *s) | ||
| 658 | { | ||
| 659 | unsigned char *p; | ||
| 660 | size_t len, align, headerlen; | ||
| 661 | |||
| 662 | if (SSL_is_dtls(s)) | ||
| 663 | headerlen = DTLS1_RT_HEADER_LENGTH; | ||
| 664 | else | ||
| 665 | headerlen = SSL3_RT_HEADER_LENGTH; | ||
| 666 | |||
| 667 | align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1); | ||
| 668 | |||
| 669 | if (S3I(s)->rbuf.buf == NULL) { | ||
| 670 | len = SSL3_RT_MAX_PLAIN_LENGTH + | ||
| 671 | SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align; | ||
| 672 | if ((p = calloc(1, len)) == NULL) | ||
| 673 | goto err; | ||
| 674 | S3I(s)->rbuf.buf = p; | ||
| 675 | S3I(s)->rbuf.len = len; | ||
| 676 | } | ||
| 677 | |||
| 678 | s->internal->packet = S3I(s)->rbuf.buf; | ||
| 679 | return 1; | ||
| 680 | |||
| 681 | err: | ||
| 682 | SSLerror(s, ERR_R_MALLOC_FAILURE); | ||
| 683 | return 0; | ||
| 684 | } | ||
| 685 | |||
| 686 | int | ||
| 687 | ssl3_setup_write_buffer(SSL *s) | ||
| 688 | { | ||
| 689 | unsigned char *p; | ||
| 690 | size_t len, align, headerlen; | ||
| 691 | |||
| 692 | if (SSL_is_dtls(s)) | ||
| 693 | headerlen = DTLS1_RT_HEADER_LENGTH + 1; | ||
| 694 | else | ||
| 695 | headerlen = SSL3_RT_HEADER_LENGTH; | ||
| 696 | |||
| 697 | align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1); | ||
| 698 | |||
| 699 | if (S3I(s)->wbuf.buf == NULL) { | ||
| 700 | len = s->max_send_fragment + | ||
| 701 | SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align; | ||
| 702 | if (!(s->internal->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) | ||
| 703 | len += headerlen + align + | ||
| 704 | SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD; | ||
| 705 | |||
| 706 | if ((p = calloc(1, len)) == NULL) | ||
| 707 | goto err; | ||
| 708 | S3I(s)->wbuf.buf = p; | ||
| 709 | S3I(s)->wbuf.len = len; | ||
| 710 | } | ||
| 711 | |||
| 712 | return 1; | ||
| 713 | |||
| 714 | err: | ||
| 715 | SSLerror(s, ERR_R_MALLOC_FAILURE); | ||
| 716 | return 0; | ||
| 717 | } | ||
| 718 | |||
| 719 | int | ||
| 720 | ssl3_setup_buffers(SSL *s) | ||
| 721 | { | ||
| 722 | if (!ssl3_setup_read_buffer(s)) | ||
| 723 | return 0; | ||
| 724 | if (!ssl3_setup_write_buffer(s)) | ||
| 725 | return 0; | ||
| 726 | return 1; | ||
| 727 | } | ||
| 728 | |||
| 729 | void | ||
| 730 | ssl3_release_buffer(SSL3_BUFFER_INTERNAL *b) | ||
| 731 | { | ||
| 732 | freezero(b->buf, b->len); | ||
| 733 | b->buf = NULL; | ||
| 734 | b->len = 0; | ||
| 735 | } | ||
| 736 | |||
| 737 | void | ||
| 738 | ssl3_release_read_buffer(SSL *s) | ||
| 739 | { | ||
| 740 | ssl3_release_buffer(&S3I(s)->rbuf); | ||
| 741 | } | ||
| 742 | |||
| 743 | void | ||
| 744 | ssl3_release_write_buffer(SSL *s) | ||
| 745 | { | ||
| 746 | ssl3_release_buffer(&S3I(s)->wbuf); | ||
| 747 | } | ||
