X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fssl%2Ft1_reneg.c;h=01dc403bdb571e66d25e18f6b7271d02902fff06;hb=02ed66432c92de70694700164f986190aad3cbc5;hp=9c2cc3c712a20415a83490cfa1c112fdc49eb6c5;hpb=9ff1530871deeb0f7eaa35ca0db6630724045e4a;p=cassiopeia.git diff --git a/lib/openssl/ssl/t1_reneg.c b/lib/openssl/ssl/t1_reneg.c index 9c2cc3c..01dc403 100644 --- a/lib/openssl/ssl/t1_reneg.c +++ b/lib/openssl/ssl/t1_reneg.c @@ -1,292 +1,165 @@ -/* ssl/t1_reneg.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -/* ==================================================================== - * Copyright (c) 1998-2009 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ + #include #include #include "ssl_locl.h" /* Add the client's renegotiation binding */ int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, - int maxlen) - { - if(p) - { - if((s->s3->previous_client_finished_len+1) > maxlen) - { - SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATE_EXT_TOO_LONG); + int maxlen) +{ + if (p) { + if ((s->s3->previous_client_finished_len + 1) > maxlen) { + SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATE_EXT_TOO_LONG); return 0; - } - + } + /* Length byte */ - *p = s->s3->previous_client_finished_len; + *p = s->s3->previous_client_finished_len; p++; memcpy(p, s->s3->previous_client_finished, - s->s3->previous_client_finished_len); -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, "%s RI extension sent by client\n", - s->s3->previous_client_finished_len ? "Non-empty" : "Empty"); -#endif - } - - *len=s->s3->previous_client_finished_len + 1; + s->s3->previous_client_finished_len); + } + + *len = s->s3->previous_client_finished_len + 1; - return 1; - } +} -/* Parse the client's renegotiation binding and abort if it's not - right */ -int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len, - int *al) - { - int ilen; +/* + * Parse the client's renegotiation binding and abort if it's not right + */ +int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al) +{ + unsigned int ilen; + const unsigned char *d; /* Parse the length byte */ - if(len < 1) - { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_ENCODING_ERR); - *al=SSL_AD_ILLEGAL_PARAMETER; + if (!PACKET_get_1(pkt, &ilen) + || !PACKET_get_bytes(pkt, &d, ilen)) { + SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_ENCODING_ERR); + *al = SSL_AD_ILLEGAL_PARAMETER; return 0; - } - ilen = *d; - d++; - - /* Consistency check */ - if((ilen+1) != len) - { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_ENCODING_ERR); - *al=SSL_AD_ILLEGAL_PARAMETER; - return 0; - } + } /* Check that the extension matches */ - if(ilen != s->s3->previous_client_finished_len) - { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_MISMATCH); - *al=SSL_AD_HANDSHAKE_FAILURE; + if (ilen != s->s3->previous_client_finished_len) { + SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_MISMATCH); + *al = SSL_AD_HANDSHAKE_FAILURE; return 0; - } - - if(memcmp(d, s->s3->previous_client_finished, - s->s3->previous_client_finished_len)) - { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_MISMATCH); - *al=SSL_AD_HANDSHAKE_FAILURE; + } + + if (memcmp(d, s->s3->previous_client_finished, + s->s3->previous_client_finished_len)) { + SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_MISMATCH); + *al = SSL_AD_HANDSHAKE_FAILURE; return 0; - } -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, "%s RI extension received by server\n", - ilen ? "Non-empty" : "Empty"); -#endif + } - s->s3->send_connection_binding=1; + s->s3->send_connection_binding = 1; return 1; - } +} /* Add the server's renegotiation binding */ int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, - int maxlen) - { - if(p) - { - if((s->s3->previous_client_finished_len + - s->s3->previous_server_finished_len + 1) > maxlen) - { - SSLerr(SSL_F_SSL_ADD_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATE_EXT_TOO_LONG); + int maxlen) +{ + if (p) { + if ((s->s3->previous_client_finished_len + + s->s3->previous_server_finished_len + 1) > maxlen) { + SSLerr(SSL_F_SSL_ADD_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATE_EXT_TOO_LONG); return 0; - } - + } + /* Length byte */ - *p = s->s3->previous_client_finished_len + s->s3->previous_server_finished_len; + *p = s->s3->previous_client_finished_len + + s->s3->previous_server_finished_len; p++; memcpy(p, s->s3->previous_client_finished, - s->s3->previous_client_finished_len); + s->s3->previous_client_finished_len); p += s->s3->previous_client_finished_len; memcpy(p, s->s3->previous_server_finished, - s->s3->previous_server_finished_len); -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, "%s RI extension sent by server\n", - s->s3->previous_client_finished_len ? "Non-empty" : "Empty"); -#endif - } - - *len=s->s3->previous_client_finished_len - + s->s3->previous_server_finished_len + 1; - - return 1; + s->s3->previous_server_finished_len); } -/* Parse the server's renegotiation binding and abort if it's not - right */ -int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len, - int *al) - { - int expected_len=s->s3->previous_client_finished_len - + s->s3->previous_server_finished_len; - int ilen; + *len = s->s3->previous_client_finished_len + + s->s3->previous_server_finished_len + 1; + + return 1; +} + +/* + * Parse the server's renegotiation binding and abort if it's not right + */ +int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt, int *al) +{ + unsigned int expected_len = s->s3->previous_client_finished_len + + s->s3->previous_server_finished_len; + unsigned int ilen; + const unsigned char *data; /* Check for logic errors */ OPENSSL_assert(!expected_len || s->s3->previous_client_finished_len); OPENSSL_assert(!expected_len || s->s3->previous_server_finished_len); - + /* Parse the length byte */ - if(len < 1) - { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_ENCODING_ERR); - *al=SSL_AD_ILLEGAL_PARAMETER; + if (!PACKET_get_1(pkt, &ilen)) { + SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_ENCODING_ERR); + *al = SSL_AD_ILLEGAL_PARAMETER; return 0; - } - ilen = *d; - d++; + } /* Consistency check */ - if(ilen+1 != len) - { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_ENCODING_ERR); - *al=SSL_AD_ILLEGAL_PARAMETER; + if (PACKET_remaining(pkt) != ilen) { + SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_ENCODING_ERR); + *al = SSL_AD_ILLEGAL_PARAMETER; return 0; - } - + } + /* Check that the extension matches */ - if(ilen != expected_len) - { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_MISMATCH); - *al=SSL_AD_HANDSHAKE_FAILURE; + if (ilen != expected_len) { + SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_MISMATCH); + *al = SSL_AD_HANDSHAKE_FAILURE; return 0; - } + } - if(memcmp(d, s->s3->previous_client_finished, - s->s3->previous_client_finished_len)) - { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_MISMATCH); - *al=SSL_AD_HANDSHAKE_FAILURE; + if (!PACKET_get_bytes(pkt, &data, s->s3->previous_client_finished_len) + || memcmp(data, s->s3->previous_client_finished, + s->s3->previous_client_finished_len) != 0) { + SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_MISMATCH); + *al = SSL_AD_HANDSHAKE_FAILURE; return 0; - } - d += s->s3->previous_client_finished_len; + } - if(memcmp(d, s->s3->previous_server_finished, - s->s3->previous_server_finished_len)) - { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT,SSL_R_RENEGOTIATION_MISMATCH); - *al=SSL_AD_ILLEGAL_PARAMETER; + if (!PACKET_get_bytes(pkt, &data, s->s3->previous_server_finished_len) + || memcmp(data, s->s3->previous_server_finished, + s->s3->previous_server_finished_len) != 0) { + SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT, + SSL_R_RENEGOTIATION_MISMATCH); + *al = SSL_AD_ILLEGAL_PARAMETER; return 0; - } -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, "%s RI extension received by client\n", - ilen ? "Non-empty" : "Empty"); -#endif - s->s3->send_connection_binding=1; + } + s->s3->send_connection_binding = 1; return 1; - } +}