1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ssl/d1_srvr.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DTLS implementation written by Nagendra Modadugu 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 7221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * Copyright (c) 1999-2007 The OpenSSL Project. All rights reserved. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * openssl-core@OpenSSL.org. 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "ssl_locl.h" 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/buffer.h> 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/rand.h> 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/objects.h> 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/evp.h> 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/x509.h> 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/md5.h> 124221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#include <openssl/bn.h> 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DH 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/dh.h> 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 129221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic const SSL_METHOD *dtls1_get_server_method(int ver); 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dtls1_send_hello_verify_request(SSL *s); 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 132221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic const SSL_METHOD *dtls1_get_server_method(int ver) 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ver == DTLS1_VERSION) 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(DTLSv1_server_method()); 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_dtls1_meth_func(DTLSv1_server_method, 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_accept, 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl_undefined_function, 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_get_server_method) 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_accept(SSL *s) 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *buf; 148221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned long Time=(unsigned long)time(NULL); 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void (*cb)(const SSL *ssl,int type,int val)=NULL; 150221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned long alg_k; 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret= -1; 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int new_state,state,skip=0; 153ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom int listen; 154392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 155392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom unsigned char sctpauthkey[64]; 156392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)]; 157392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RAND_add(&Time,sizeof(Time),0); 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_clear_error(); 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project clear_sys_error(); 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->info_callback != NULL) 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb=s->info_callback; 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (s->ctx->info_callback != NULL) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb=s->ctx->info_callback; 167ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom 168ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom listen = s->d1->listen; 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* init things to blank */ 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->in_handshake++; 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 174ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->listen = listen; 175392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 176392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Notify SCTP BIO socket to enter handshake 177392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * mode and prevent stream identifier other 178392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * than 0. Will be ignored if no SCTP is used. 179392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 180392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL); 181392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 182ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->cert == NULL) 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET); 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 189392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_HEARTBEATS 190392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* If we're awaiting a HeartbeatResponse, pretend we 191392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * already got and don't await it anymore, because 192392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * Heartbeats don't make sense during handshakes anyway. 193392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 194392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (s->tlsext_hb_pending) 195392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 196392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom dtls1_stop_timer(s); 197392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->tlsext_hb_pending = 0; 198392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->tlsext_hb_seq++; 199392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 200392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 201392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project state=s->state; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch (s->state) 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_RENEGOTIATE: 209392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->renegotiate=1; 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->state=SSL_ST_ACCEPT; */ 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_BEFORE: 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_ACCEPT: 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_BEFORE|SSL_ST_ACCEPT: 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_OK|SSL_ST_ACCEPT: 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->server=1; 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00)) 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR); 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->type=SSL_ST_ACCEPT; 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->init_buf == NULL) 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((buf=BUF_MEM_new()) == NULL) 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_buf=buf; 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!ssl3_setup_buffers(s)) 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state != SSL_ST_RENEGOTIATE) 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Ok, we now need to push on a buffering BIO so that 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the output is sent in a way that TCP likes :-) 254392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * ...but not with SCTP :-) 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 256392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 257392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (!BIO_dgram_is_sctp(SSL_get_wbio(s))) 258392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 259392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; } 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_init_finished_mac(s); 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SR_CLNT_HELLO_A; 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->ctx->stats.sess_accept++; 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->state == SSL_ST_RENEGOTIATE, 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * we will just send a HelloRequest */ 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->ctx->stats.sess_accept_renegotiate++; 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_HELLO_REQ_A; 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_HELLO_REQ_A: 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_HELLO_REQ_B: 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->shutdown=0; 279ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root dtls1_clear_record_buffer(s); 28098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_hello_request(s); 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 283ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_init_finished_mac(s); 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_HELLO_REQ_C: 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL_ST_OK; 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_A: 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_B: 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_C: 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->shutdown=0; 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_client_hello(s); 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 30198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_stop_timer(s); 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 30398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE)) 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A; 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_SRVR_HELLO_A; 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 30998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 310ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom /* Reflect ClientHello sequence to remain stateless while listening */ 311ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if (listen) 312ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom { 313ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom memcpy(s->s3->write_sequence, s->s3->read_sequence, sizeof(s->s3->write_sequence)); 314ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom } 315ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom 31698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* If we're just listening, stop here */ 317ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A) 31898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 31998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret = 2; 32098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->listen = 0; 321ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom /* Set expected sequence numbers 322ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom * to continue the handshake. 323ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom */ 324ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->handshake_read_seq = 2; 325ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->handshake_write_seq = 1; 326ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->next_handshake_write_seq = 1; 32798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom goto end; 32898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 32998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A: 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B: 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = dtls1_send_hello_verify_request(s); 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ( ret <= 0) goto end; 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 340221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* HelloVerifyRequest resets Finished MAC */ 341221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (s->version != DTLS1_BAD_VER) 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_init_finished_mac(s); 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 345392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 346392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom case DTLS1_SCTP_ST_SR_READ_SOCK: 347392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 348392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) 349392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 350392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->in_read_app_data=2; 351392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_READING; 352392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_clear_retry_flags(SSL_get_rbio(s)); 353392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_set_retry_read(SSL_get_rbio(s)); 354392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = -1; 355392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom goto end; 356392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 357392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 358392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 359392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom break; 360392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 361392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom case DTLS1_SCTP_ST_SW_WRITE_SOCK: 362392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s)); 363392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (ret < 0) goto end; 364392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 365392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (ret == 0) 366392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 367392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (s->d1->next_state != SSL_ST_OK) 368392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 369392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->in_read_app_data=2; 370392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_READING; 371392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_clear_retry_flags(SSL_get_rbio(s)); 372392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_set_retry_read(SSL_get_rbio(s)); 373392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = -1; 374392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom goto end; 375392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 376392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 377392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 378392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=s->d1->next_state; 379392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom break; 380392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 381392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_HELLO_A: 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_HELLO_B: 384392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->renegotiate = 2; 38598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_hello(s); 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 39098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 391392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 392392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Add new shared key for SCTP-Auth, 393392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * will be ignored if no SCTP used. 394392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 395392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), 396392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom DTLS1_SCTP_AUTH_LABEL); 397392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 398392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom SSL_export_keying_material(s, sctpauthkey, 399392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), labelbuffer, 400392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(labelbuffer), NULL, 0, 0); 401392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 402392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, 403392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), sctpauthkey); 404392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 405392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 40698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->tlsext_ticket_expected) 40798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_A; 40898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 40998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 41098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#else 411392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 41298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 413392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_A; 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_A: 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_B: 421221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Check if it is anon DH or normal PSK */ 422221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) 423221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 42598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_certificate(s); 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 42898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 42998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->tlsext_status_expected) 43098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CERT_STATUS_A; 43198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 43298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 43398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 43498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 43598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 43698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom skip = 1; 43798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 43898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 43998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#else 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 44398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_KEY_EXCH_A; 44598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_KEY_EXCH_A: 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_KEY_EXCH_B: 451221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* clear this, it may get reset by 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * send_server_key_exchange */ 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((s->options & SSL_OP_EPHEMERAL_RSA) 456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_KRB5 457221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(alg_k & SSL_kKRB5) 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif /* OPENSSL_NO_KRB5 */ 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * even when forbidden by protocol specs 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (handshake may fail as clients are not required to 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * be able to handle this) */ 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=1; 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=0; 467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 468221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* only send if a DH key exchange or 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * RSA but we have a sign only certificate */ 470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.use_rsa_tmp 471221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* PSK: send ServerKeyExchange if PSK identity 472221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * hint if provided */ 473221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 4743355e0f024c4cd610fbb32fdf148a6f376e9e74eAlex Klyubin || ((alg_k & SSL_kPSK) && s->session->psk_identity_hint) 475221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 476221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) 477221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (alg_k & SSL_kEECDH) 478221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || ((alg_k & SSL_kRSA) 479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL 480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) 481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher) 482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 48798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_key_exchange(s); 489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_REQ_A; 495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_REQ_A: 499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_REQ_B: 500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (/* don't request cert unless asked for it: */ 501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(s->verify_mode & SSL_VERIFY_PEER) || 502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* if SSL_VERIFY_CLIENT_ONCE is set, 503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * don't request cert during re-negotiation: */ 504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ((s->session->peer != NULL) && 505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) || 506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* never request cert in anonymous ciphersuites 507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (see section "Certificate request" in SSL 3 drafts 508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * and in RFC 2246): */ 509221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) && 510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* ... except when the application insists on verification 511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (against the specs, but s3_clnt.c accepts this for SSL 3) */ 512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) || 513221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* never request cert in Kerberos ciphersuites */ 514221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5) 515221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* With normal PSK Certificates and 516221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * Certificate Requests are omitted */ 517221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* no cert request */ 520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.cert_request=0; 522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_A; 523392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 524392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 525392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 526392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; 527392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; 528392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 529392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.cert_request=1; 53498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_certificate_request(s); 536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef NETSCAPE_HANG_BUG 538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_A; 539392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 540392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 541392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 542392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; 543392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; 544392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 545392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; 549392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 550392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 551392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 552392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = s->s3->tmp.next_state; 553392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK; 554392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 555392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_DONE_A: 562656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_DONE_B: 56398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_done(s); 565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; 567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 571656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FLUSH: 57298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->rwstate=SSL_WRITING; 57398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (BIO_flush(s->wbio) <= 0) 574656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 575392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* If the write error was fatal, stop trying */ 576392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (!BIO_should_retry(s->wbio)) 577392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 578392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_NOTHING; 579392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=s->s3->tmp.next_state; 580392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 581392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 58298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret= -1; 58398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom goto end; 584656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 58598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->rwstate=SSL_NOTHING; 586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=s->s3->tmp.next_state; 587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_A: 590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_B: 591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check for second client hello (MS SGC) */ 592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ssl3_check_client_hello(s); 593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 595656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret == 2) 59621c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom { 59721c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom dtls1_stop_timer(s); 598656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SR_CLNT_HELLO_C; 59921c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom } 600656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else { 601c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root if (s->s3->tmp.cert_request) 602c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root { 603c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root ret=ssl3_get_client_certificate(s); 604c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root if (ret <= 0) goto end; 605c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root } 606656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 607656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SR_KEY_EXCH_A; 608656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 609656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 610656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 611656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_KEY_EXCH_A: 612656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_KEY_EXCH_B: 613656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_client_key_exchange(s); 614656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 615392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 616392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Add new shared key for SCTP-Auth, 617392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * will be ignored if no SCTP used. 618392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 619392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom snprintf((char *) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), 620392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom DTLS1_SCTP_AUTH_LABEL); 621392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 622392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom SSL_export_keying_material(s, sctpauthkey, 623392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), labelbuffer, 624392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(labelbuffer), NULL, 0, 0); 625392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 626392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, 627392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), sctpauthkey); 628392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 629392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 630656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SR_CERT_VRFY_A; 631656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 632656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 633221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ret == 2) 634221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 635221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* For the ECDH ciphersuites when 636221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * the client sends its ECDH pub key in 637221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * a certificate, the CertificateVerify 638221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * message is not sent. 639221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 640221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 641221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->init_num = 0; 642221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 643221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 644221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 645221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->state=SSL3_ST_SR_CERT_VRFY_A; 646221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->init_num=0; 647656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 648221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* We need to get hashes here so if there is 649221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * a client cert, it can be verified */ 650221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->method->ssl3_enc->cert_verify_mac(s, 651221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NID_md5, 652221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom &(s->s3->tmp.cert_verify_md[0])); 653221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->method->ssl3_enc->cert_verify_mac(s, 654221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NID_sha1, 655221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH])); 656221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 657656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 658656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 659656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_VRFY_A: 660656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_VRFY_B: 661656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 66298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->change_cipher_spec_ok = 1; 663656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should decide if we expected this one */ 664656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_cert_verify(s); 665656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 666392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 667392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s)) && 668392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom state == SSL_ST_RENEGOTIATE) 669392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=DTLS1_SCTP_ST_SR_READ_SOCK; 670392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom else 671392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 672392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 673656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 674656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 675656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 676656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_FINISHED_A: 677656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_FINISHED_B: 67898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->change_cipher_spec_ok = 1; 679656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A, 680656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SR_FINISHED_B); 681656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 68298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_stop_timer(s); 683656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 684656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL_ST_OK; 68598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 68698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else if (s->tlsext_ticket_expected) 68798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_A; 68898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 689656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 690656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CHANGE_A; 691656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 692656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 693656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 69498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 69598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_SESSION_TICKET_A: 69698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_SESSION_TICKET_B: 69798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret=dtls1_send_newsession_ticket(s); 69898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret <= 0) goto end; 69998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 70098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num=0; 70198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom break; 70298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 70398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_CERT_STATUS_A: 70498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_CERT_STATUS_B: 70598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret=ssl3_send_cert_status(s); 70698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret <= 0) goto end; 70798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 70898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num=0; 70998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom break; 71098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 71198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 71298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 713656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CHANGE_A: 714656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CHANGE_B: 715656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 716656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->session->cipher=s->s3->tmp.new_cipher; 717656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->method->ssl3_enc->setup_key_block(s)) 718656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { ret= -1; goto end; } 719656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 720656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_change_cipher_spec(s, 721656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B); 722656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 723656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 724392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 725392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 726ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root if (!s->hit) 727ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root { 728ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root /* Change to new shared key of SCTP-Auth, 729ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root * will be ignored if no SCTP used. 730ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root */ 731ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); 732ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root } 733392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 734392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 735656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FINISHED_A; 736656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 737656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 738656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->method->ssl3_enc->change_cipher_state(s, 739656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_CHANGE_CIPHER_SERVER_WRITE)) 740656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 741656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 742656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 743656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 744656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 745656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); 746656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 747656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 748656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FINISHED_A: 749656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FINISHED_B: 750656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_finished(s, 751656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B, 752656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->method->ssl3_enc->server_finished_label, 753656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->method->ssl3_enc->server_finished_label_len); 754656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 755656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 756656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 757ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root { 758656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A; 759ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root 760ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root#ifndef OPENSSL_NO_SCTP 761ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root /* Change to new shared key of SCTP-Auth, 762ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root * will be ignored if no SCTP used. 763ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root */ 764ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); 765ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root#endif 766ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root } 767656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 768392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 769656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL_ST_OK; 770392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 771392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 772392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 773392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = s->s3->tmp.next_state; 774392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK; 775392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 776392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 777392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 778656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 779656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 780656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 781656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_OK: 782656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* clean a few things up */ 783656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_cleanup_key_block(s); 784656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 785656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 786656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM_free(s->init_buf); 787656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_buf=NULL; 788656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 789656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 790656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* remove buffering on output */ 791656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl_free_wbio_buffer(s); 792656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 793656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 794656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 795392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (s->renegotiate == 2) /* skipped if we just sent a HelloRequest */ 796656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 797392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->renegotiate=0; 798656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->new_session=0; 799656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 800656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl_update_cache(s,SSL_SESS_CACHE_SERVER); 801656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 802656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->ctx->stats.sess_accept_good++; 803656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->server=1; */ 804656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->handshake_func=dtls1_accept; 805656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 806656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); 807656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 808656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 809656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = 1; 810656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 811656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* done handshaking, next message is client hello */ 812656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_read_seq = 0; 813656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* next message is server hello */ 814656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_write_seq = 0; 81598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->next_handshake_write_seq = 0; 816656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 817656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* break; */ 818656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 819656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 820656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_UNKNOWN_STATE); 821656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 822656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 823656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* break; */ 824656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 825656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 826656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->s3->tmp.reuse_message && !skip) 827656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 828656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->debug) 829656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 830656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ret=BIO_flush(s->wbio)) <= 0) 831656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 832656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 833656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 834656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 835656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((cb != NULL) && (s->state != state)) 836656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 837656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project new_state=s->state; 838656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=state; 839656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb(s,SSL_CB_ACCEPT_LOOP,1); 840656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=new_state; 841656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 842656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 843656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=0; 844656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 845656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectend: 846656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* BIO_flush(s->wbio); */ 847656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 848656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->in_handshake--; 849392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 850392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Notify SCTP BIO socket to leave handshake 851392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * mode and prevent stream identifier other 852392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * than 0. Will be ignored if no SCTP is used. 853392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 854392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL); 855392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 856392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 857656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (cb != NULL) 858656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb(s,SSL_CB_ACCEPT_EXIT,ret); 859656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 860656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 861656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 862656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_hello_request(SSL *s) 863656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 864656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 865656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 866656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_HELLO_REQ_A) 867656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 868656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data; 869656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = dtls1_set_message_header(s, p, SSL3_MT_HELLO_REQUEST, 0, 0, 0); 870656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 871656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_HELLO_REQ_B; 872656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 873656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=DTLS1_HM_HEADER_LENGTH; 874656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 875656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 876656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* no need to buffer this message, since there are no retransmit 877656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * requests for it */ 878656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 879656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 880656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_HELLO_REQ_B */ 881656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 882656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 883656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 884656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_hello_verify_request(SSL *s) 885656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 886656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int msg_len; 887656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *msg, *buf, *p; 888656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 889656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A) 890656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 891656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf = (unsigned char *)s->init_buf->data; 892656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 893656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg = p = &(buf[DTLS1_HM_HEADER_LENGTH]); 894221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++) = s->version >> 8; 895221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++) = s->version & 0xFF; 896656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 89798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->ctx->app_gen_cookie_cb == NULL || 89898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->ctx->app_gen_cookie_cb(s, s->d1->cookie, 89998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom &(s->d1->cookie_len)) == 0) 900656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 901656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST,ERR_R_INTERNAL_ERROR); 902656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 903656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 904656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 905656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++) = (unsigned char) s->d1->cookie_len; 906656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p, s->d1->cookie, s->d1->cookie_len); 907656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p += s->d1->cookie_len; 908656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg_len = p - msg; 909656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 910656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_set_message_header(s, buf, 911656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DTLS1_MT_HELLO_VERIFY_REQUEST, msg_len, 0, msg_len); 912656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 913656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B; 914656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 915656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=p-buf; 916656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 917656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 918656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 919656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B */ 920656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 921656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 922656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 923656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_hello(SSL *s) 924656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 925656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *buf; 926656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 927656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 928656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int sl; 929ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root unsigned long l; 930656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 931656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_SRVR_HELLO_A) 932656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 933656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=(unsigned char *)s->init_buf->data; 934656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=s->s3->server_random; 935ff41a4bc41ae1e1391f9b05117623ff70b985983Kenny Root ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE); 936656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do the message type and length last */ 937656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); 938656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 939221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++)=s->version>>8; 940221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++)=s->version&0xff; 941656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 942656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Random stuff */ 943656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE); 944656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=SSL3_RANDOM_SIZE; 945656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 946656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* now in theory we have 3 options to sending back the 947656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * session id. If it is a re-use, we send back the 948656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * old session-id, if it is a new session, we send 949656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * back the new session-id or we send back a 0 length 950656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * session-id if we want it to be single use. 951656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Currently I will not implement the '0' length session-id 952656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12-Jan-98 - I'll now support the '0' length stuff. 953656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 954656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER)) 955656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->session->session_id_length=0; 956656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 957656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sl=s->session->session_id_length; 958656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sl > sizeof s->session->session_id) 959656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 960656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR); 961656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 962656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 963656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=sl; 964656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p,s->session->session_id,sl); 965656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=sl; 966656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 967656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* put the cipher */ 96898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->s3->tmp.new_cipher == NULL) 96998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 970656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p); 971656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=i; 972656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 973656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* put the compression method */ 974656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef OPENSSL_NO_COMP 975656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 976656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 977656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.new_compression == NULL) 978656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 979656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 980656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=s->s3->tmp.new_compression->id; 981656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 982656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 98398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 984c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root if (ssl_prepare_serverhello_tlsext(s) <= 0) 985c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root { 986c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,SSL_R_SERVERHELLO_TLSEXT); 987c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root return -1; 988c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root } 98998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if ((p = ssl_add_serverhello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) 99098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 99198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,ERR_R_INTERNAL_ERROR); 99298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 99398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 99498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 99598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 996656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 997656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=(p-d); 998656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=buf; 999656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1000656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l); 1001656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1002e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu s->state=SSL3_ST_SW_SRVR_HELLO_B; 1003656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 1004656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=p-buf; 1005656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1006656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1007656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1008656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1009656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1010656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1011e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu /* SSL3_ST_SW_SRVR_HELLO_B */ 1012656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1013656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1014656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1015656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_done(SSL *s) 1016656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1017656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 1018656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1019656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_SRVR_DONE_A) 1020656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1021656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data; 1022656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1023656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 1024656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = dtls1_set_message_header(s, p, SSL3_MT_SERVER_DONE, 0, 0, 0); 1025656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1026656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_B; 1027656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 1028656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=DTLS1_HM_HEADER_LENGTH; 1029656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1030656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1031656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1032656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1033656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1034656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1035e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu /* SSL3_ST_SW_SRVR_DONE_B */ 1036656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1037656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1038656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1039656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_key_exchange(SSL *s) 1040656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1041656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1042656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *q; 1043656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int j,num; 1044656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RSA *rsa; 1045656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; 1046656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int u; 1047656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1048656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DH 1049656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DH *dh=NULL,*dhp; 1050656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1051221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1052221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY *ecdh=NULL, *ecdhp; 1053221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned char *encodedPoint = NULL; 1054221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int encodedlen = 0; 1055221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int curve_id = 0; 1056221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX *bn_ctx = NULL; 1057221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1058656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_PKEY *pkey; 1059656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 1060656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int al,i; 1061656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long type; 1062656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int n; 1063656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CERT *cert; 1064656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM *r[4]; 1065656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int nr[4],kn; 1066656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *buf; 1067656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX md_ctx; 1068656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1069656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_init(&md_ctx); 1070656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_KEY_EXCH_A) 1071656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1072221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom type=s->s3->tmp.new_cipher->algorithm_mkey; 1073656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cert=s->cert; 1074656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1075656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=s->init_buf; 1076656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1077656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=r[1]=r[2]=r[3]=NULL; 1078656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=0; 1079656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1080656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (type & SSL_kRSA) 1081656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1082656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsa=cert->rsa_tmp; 1083656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL)) 1084656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1085656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsa=s->cert->rsa_tmp_cb(s, 1086656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1087656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1088656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(rsa == NULL) 1089656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1090656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1091656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY); 1092656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1093656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1094656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RSA_up_ref(rsa); 1095656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cert->rsa_tmp=rsa; 1096656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1097656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (rsa == NULL) 1098656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1099656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY); 1101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=rsa->n; 1104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[1]=rsa->e; 1105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=1; 1106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DH 1110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (type & SSL_kEDH) 1111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp=cert->dh_tmp; 1113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL)) 1114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp=s->cert->dh_tmp_cb(s, 1115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (dhp == NULL) 1118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY); 1121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.dh != NULL) 1125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DH_free(dh); 1127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); 1128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dh=DHparams_dup(dhp)) == NULL) 1132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); 1134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.dh=dh; 1138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dhp->pub_key == NULL || 1139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp->priv_key == NULL || 1140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->options & SSL_OP_SINGLE_DH_USE))) 1141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!DH_generate_key(dh)) 1143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, 1145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_DH_LIB); 1146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dh->pub_key=BN_dup(dhp->pub_key); 1152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dh->priv_key=BN_dup(dhp->priv_key); 1153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dh->pub_key == NULL) || 1154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (dh->priv_key == NULL)) 1155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); 1157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=dh->p; 1161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[1]=dh->g; 1162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[2]=dh->pub_key; 1163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1166221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1167221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kEECDH) 1168221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1169221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom const EC_GROUP *group; 1170221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1171221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ecdhp=cert->ecdh_tmp; 1172221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL)) 1173221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1174221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ecdhp=s->cert->ecdh_tmp_cb(s, 1175221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1176221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1177221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1178221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ecdhp == NULL) 1179221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1180221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom al=SSL_AD_HANDSHAKE_FAILURE; 1181221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY); 1182221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto f_err; 1183221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1184221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1185221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (s->s3->tmp.ecdh != NULL) 1186221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1187221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_free(s->s3->tmp.ecdh); 1188221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); 1189221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1190221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1191221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1192221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Duplicate the ECDH structure. */ 1193221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ecdhp == NULL) 1194221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1195221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1196221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1197221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1198ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if ((ecdh = EC_KEY_dup(ecdhp)) == NULL) 1199221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1200221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1201221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1202221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1203221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1204221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->s3->tmp.ecdh=ecdh; 1205221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((EC_KEY_get0_public_key(ecdh) == NULL) || 1206221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_private_key(ecdh) == NULL) || 1207221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->options & SSL_OP_SINGLE_ECDH_USE)) 1208221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1209221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if(!EC_KEY_generate_key(ecdh)) 1210221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1211221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1212221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1213221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1214221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1215221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1216221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (((group = EC_KEY_get0_group(ecdh)) == NULL) || 1217221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_public_key(ecdh) == NULL) || 1218221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_private_key(ecdh) == NULL)) 1219221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1220221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1221221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1222221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1223221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1224221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && 1225221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_GROUP_get_degree(group) > 163)) 1226221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1227221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER); 1228221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1229221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1230221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1231221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support ephemeral ECDH 1232221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * keys over named (not generic) curves. For 1233221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * supported named curves, curve_id is non-zero. 1234221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1235221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((curve_id = 1236221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group))) 1237221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom == 0) 1238221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1239221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE); 1240221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1241221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1242221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1243221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Encode the public key. 1244221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * First check the size of encoding and 1245221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * allocate memory accordingly. 1246221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1247221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen = EC_POINT_point2oct(group, 1248221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_get0_public_key(ecdh), 1249221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom POINT_CONVERSION_UNCOMPRESSED, 1250221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NULL, 0, NULL); 1251221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1252221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedPoint = (unsigned char *) 1253221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom OPENSSL_malloc(encodedlen*sizeof(unsigned char)); 1254221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom bn_ctx = BN_CTX_new(); 1255221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((encodedPoint == NULL) || (bn_ctx == NULL)) 1256221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1257221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); 1258221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1259221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1260221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1261221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1262221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen = EC_POINT_point2oct(group, 1263221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_get0_public_key(ecdh), 1264221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom POINT_CONVERSION_UNCOMPRESSED, 1265221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedPoint, encodedlen, bn_ctx); 1266221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1267221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (encodedlen == 0) 1268221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1269221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1270221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1271221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1272221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1273221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX_free(bn_ctx); bn_ctx=NULL; 1274221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1275221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support named (not 1276221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * generic) curves in ECDH ephemeral key exchanges. 1277221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * In this situation, we need four additional bytes 1278221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * to encode the entire ServerECDHParams 1279221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * structure. 1280221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1281221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n = 4 + encodedlen; 1282221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1283221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* We'll generate the serverKeyExchange message 1284221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * explicitly so we can set these to NULLs 1285221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1286221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[0]=NULL; 1287221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[1]=NULL; 1288221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[2]=NULL; 1289221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[3]=NULL; 1290221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1291221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1292221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif /* !OPENSSL_NO_ECDH */ 1293221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 1294221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kPSK) 1295221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1296221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* reserve size for record length and PSK identity hint*/ 12973355e0f024c4cd610fbb32fdf148a6f376e9e74eAlex Klyubin n+=2+strlen(s->session->psk_identity_hint); 1298221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1299221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1300221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif /* !OPENSSL_NO_PSK */ 1301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); 1304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; r[i] != NULL; i++) 1307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nr[i]=BN_num_bytes(r[i]); 1309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2+nr[i]; 1310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1312221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) 1313221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 1314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1315392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher, NULL)) 1316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project == NULL) 1317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_DECODE_ERROR; 1319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project kn=EVP_PKEY_size(pkey); 1322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pkey=NULL; 1326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project kn=0; 1327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BUF_MEM_grow_clean(buf,n+DTLS1_HM_HEADER_LENGTH+kn)) 1330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF); 1332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=(unsigned char *)s->init_buf->data; 1335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p= &(d[DTLS1_HM_HEADER_LENGTH]); 1336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; r[i] != NULL; i++) 1338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(nr[i],p); 1340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BN_bn2bin(r[i],p); 1341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=nr[i]; 1342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1344221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1345221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kEECDH) 1346221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1347221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support named (not generic) curves. 1348221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * In this situation, the serverKeyExchange message has: 1349221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * [1 byte CurveType], [2 byte CurveName] 1350221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * [1 byte length of encoded point], followed by 1351221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * the actual encoded point itself 1352221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1353221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = NAMED_CURVE_TYPE; 1354221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1355221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = 0; 1356221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1357221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = curve_id; 1358221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1359221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = encodedlen; 1360221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1361221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom memcpy((unsigned char*)p, 1362221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (unsigned char *)encodedPoint, 1363221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen); 1364221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom OPENSSL_free(encodedPoint); 136577c6be7176c48d2ce4d5979a84876d34204eedafKenny Root encodedPoint = NULL; 1366221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += encodedlen; 1367221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1368221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1369221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1370221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 1371221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kPSK) 1372221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1373221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* copy PSK identity hint */ 13743355e0f024c4cd610fbb32fdf148a6f376e9e74eAlex Klyubin s2n(strlen(s->session->psk_identity_hint), p); 13753355e0f024c4cd610fbb32fdf148a6f376e9e74eAlex Klyubin strncpy((char *)p, s->session->psk_identity_hint, strlen(s->session->psk_identity_hint)); 13763355e0f024c4cd610fbb32fdf148a6f376e9e74eAlex Klyubin p+=strlen(s->session->psk_identity_hint); 1377221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1378221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1379221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* not anonymous */ 1381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey != NULL) 1382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* n is the length of the params, they start at 1384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * &(d[DTLS1_HM_HEADER_LENGTH]) and p points to the space 1385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * at the end. */ 1386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey->type == EVP_PKEY_RSA) 1388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project q=md_buf; 1390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=0; 1391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (num=2; num > 0; num--) 1392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestInit_ex(&md_ctx,(num == 2) 1394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ?s->ctx->md5:s->ctx->sha1, NULL); 1395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 1397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestFinal_ex(&md_ctx,q, 1399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int *)&i); 1400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project q+=i; 1401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j+=i; 1402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (RSA_sign(NID_md5_sha1, md_buf, j, 1404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &(p[2]), &u, pkey->pkey.rsa) <= 0) 1405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA); 1407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(u,p); 1410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=u+2; 1411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if !defined(OPENSSL_NO_DSA) 1415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey->type == EVP_PKEY_DSA) 1416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* lets do DSS */ 1418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL); 1419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 1421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!EVP_SignFinal(&md_ctx,&(p[2]), 1423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int *)&i,pkey)) 1424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA); 1426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(i,p); 1429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=i+2; 1430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1433221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#if !defined(OPENSSL_NO_ECDSA) 1434221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (pkey->type == EVP_PKEY_EC) 1435221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1436221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* let's do ECDSA */ 1437221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL); 1438221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1439221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 14407b476c43f6a45574eb34697244b592e7b09f05a3Brian Carlstrom EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1441221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!EVP_SignFinal(&md_ctx,&(p[2]), 1442221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (unsigned int *)&i,pkey)) 1443221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1444221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA); 1445221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1446221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1447221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s2n(i,p); 1448221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n+=i+2; 1449221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1450221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1451221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Is this error check actually needed? */ 1454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE); 1456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d = dtls1_set_message_header(s, d, 1461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_MT_SERVER_KEY_EXCHANGE, n, 0, n); 1462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should now have things packed up, so lets send 1464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * it off */ 1465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=n+DTLS1_HM_HEADER_LENGTH; 1466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_KEY_EXCH_B; 1473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_cleanup(&md_ctx); 1474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectf_err: 1476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_send_alert(s,SSL3_AL_FATAL,al); 1477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 1478221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1479221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (encodedPoint != NULL) OPENSSL_free(encodedPoint); 1480221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX_free(bn_ctx); 1481221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_cleanup(&md_ctx); 1483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 1484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_certificate_request(SSL *s) 1487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 1489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,j,nl,off,n; 1490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project STACK_OF(X509_NAME) *sk=NULL; 1491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_NAME *name; 1492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *buf; 1493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int msg_len; 1494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_CERT_REQ_A) 1496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=s->init_buf; 1498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH]); 1500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* get the list of acceptable cert types */ 1502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p++; 1503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=ssl3_get_req_cert_type(s,p); 1504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[0]=n; 1505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=n; 1506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n++; 1507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project off=n; 1509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=2; 1510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2; 1511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sk=SSL_get_client_CA_list(s); 1513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl=0; 1514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sk != NULL) 1515656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<sk_X509_NAME_num(sk); i++) 1517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project name=sk_X509_NAME_value(sk,i); 1519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=i2d_X509_NAME(name,NULL); 1520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BUF_MEM_grow_clean(buf,DTLS1_HM_HEADER_LENGTH+n+j+2)) 1521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB); 1523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+n]); 1526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG)) 1527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(j,p); 1529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i2d_X509_NAME(name,&p); 1530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2+j; 1531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl+=2+j; 1532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p; 1536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i2d_X509_NAME(name,&p); 1537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j-=2; s2n(j,d); j+=2; 1538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=j; 1539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl+=j; 1540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* else no CA names */ 1544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+off]); 1545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(nl,p); 1546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=(unsigned char *)buf->data; 1548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(d++)=SSL3_MT_CERTIFICATE_REQUEST; 1549656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2n3(n,d); 1550656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(s->d1->handshake_write_seq,d); 1551656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_write_seq++; 1552656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1553656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should now have things packed up, so lets send 1554656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * it off */ 1555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=n+DTLS1_HM_HEADER_LENGTH; 1557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef NETSCAPE_HANG_BUG 1559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* XXX: what to do about this? */ 1560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data + s->init_num; 1561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1562656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 1563656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=SSL3_MT_SERVER_DONE; 1564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num += 4; 1568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* XDTLS: set message header ? */ 1571656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH; 1572656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_set_message_header(s, (void *)s->init_buf->data, 1573656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_MT_CERTIFICATE_REQUEST, msg_len, 0, msg_len); 1574656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1575656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1576656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1577656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1578656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_CERT_REQ_B; 1579656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1580656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1581656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_CERT_REQ_B */ 1582656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1583656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 1584656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 1585656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_certificate(SSL *s) 1588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long l; 1590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *x; 1591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_CERT_A) 1593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x=ssl_get_server_send_cert(s); 1595221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (x == NULL) 1596656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1597221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* VRS: allow null cert if auth == KRB5 */ 1598221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((s->s3->tmp.new_cipher->algorithm_mkey != SSL_kKRB5) || 1599221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->s3->tmp.new_cipher->algorithm_auth != SSL_aKRB5)) 1600221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1601221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR); 1602221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return(0); 1603221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1604656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1605656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1606656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=dtls1_output_cert_chain(s,x); 1607656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_B; 1608656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=(int)l; 1609656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1610656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1611656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1612656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1613656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1614656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1615656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_CERT_B */ 1616656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1617656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 161898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 161998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 162098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstromint dtls1_send_newsession_ticket(SSL *s) 162198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 162298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->state == SSL3_ST_SW_SESSION_TICKET_A) 162398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 162498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char *p, *senc, *macstart; 162598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom int len, slen; 162698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned int hlen, msg_len; 162798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX ctx; 162898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX hctx; 162998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSL_CTX *tctx = s->initial_ctx; 163098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char iv[EVP_MAX_IV_LENGTH]; 163198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char key_name[16]; 163298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 163398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* get session encoding length */ 163498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom slen = i2d_SSL_SESSION(s->session, NULL); 163598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Some length values are 16 bits, so forget it if session is 163698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * too long 163798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 163898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (slen > 0xFF00) 163998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 164098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Grow buffer if need be: the length calculation is as 164198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * follows 12 (DTLS handshake message header) + 164298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * 4 (ticket lifetime hint) + 2 (ticket length) + 164398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * 16 (key name) + max_iv_len (iv length) + 164498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * session_length + max_enc_block_size (max encrypted session 164598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * length) + max_md_size (HMAC). 164698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 164798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (!BUF_MEM_grow(s->init_buf, 164898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom DTLS1_HM_HEADER_LENGTH + 22 + EVP_MAX_IV_LENGTH + 164998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + slen)) 165098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 165198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom senc = OPENSSL_malloc(slen); 165298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (!senc) 165398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 165498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p = senc; 165598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom i2d_SSL_SESSION(s->session, &p); 165698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 165798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]); 165898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX_init(&ctx); 165998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX_init(&hctx); 166098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Initialize HMAC and cipher contexts. If callback present 166198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * it does all the work otherwise use generated values 166298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * from parent ctx. 166398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 166498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (tctx->tlsext_ticket_key_cb) 166598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 166698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (tctx->tlsext_ticket_key_cb(s, key_name, iv, &ctx, 166798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom &hctx, 1) < 0) 166898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 166998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom OPENSSL_free(senc); 167098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 167198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 167298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 167398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 167498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 167598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom RAND_pseudo_bytes(iv, 16); 167698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL, 167798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom tctx->tlsext_tick_aes_key, iv); 167898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16, 167998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom tlsext_tick_md(), NULL); 168098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(key_name, tctx->tlsext_tick_key_name, 16); 168198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 168298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom l2n(s->session->tlsext_tick_lifetime_hint, p); 168398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Skip ticket length for now */ 168498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += 2; 168598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Output key name */ 168698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom macstart = p; 168798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(p, key_name, 16); 168898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += 16; 168998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* output IV */ 169098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(p, iv, EVP_CIPHER_CTX_iv_length(&ctx)); 169198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += EVP_CIPHER_CTX_iv_length(&ctx); 169298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Encrypt session data */ 169398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptUpdate(&ctx, p, &len, senc, slen); 169498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += len; 169598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptFinal(&ctx, p, &len); 169698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += len; 169798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX_cleanup(&ctx); 169898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 169998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Update(&hctx, macstart, p - macstart); 170098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Final(&hctx, p, &hlen); 170198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX_cleanup(&hctx); 170298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 170398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += hlen; 170498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Now write out lengths: p points to end of data written */ 170598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Total length */ 170698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom len = p - (unsigned char *)(s->init_buf->data); 170798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Ticket length */ 170898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]) + 4; 170998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s2n(len - DTLS1_HM_HEADER_LENGTH - 6, p); 171098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 171198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* number of bytes to write */ 171298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num= len; 171398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_B; 171498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_off=0; 171598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom OPENSSL_free(senc); 171698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 171798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* XDTLS: set message header ? */ 171898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH; 171998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_set_message_header(s, (void *)s->init_buf->data, 172098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSL3_MT_NEWSESSION_TICKET, msg_len, 0, msg_len); 172198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 172298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* buffer the message to handle re-xmits */ 172398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_buffer_message(s, 0); 172498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 172598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 172698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* SSL3_ST_SW_SESSION_TICKET_B */ 172798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 172898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 172998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 1730