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; 27998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_hello_request(s); 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C; 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_init_finished_mac(s); 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_HELLO_REQ_C: 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL_ST_OK; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_A: 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_B: 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CLNT_HELLO_C: 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->shutdown=0; 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_client_hello(s); 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 30098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_stop_timer(s); 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 30298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE)) 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A; 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_SRVR_HELLO_A; 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 30898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 309ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom /* Reflect ClientHello sequence to remain stateless while listening */ 310ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if (listen) 311ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom { 312ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom memcpy(s->s3->write_sequence, s->s3->read_sequence, sizeof(s->s3->write_sequence)); 313ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom } 314ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom 31598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* If we're just listening, stop here */ 316ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A) 31798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 31898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret = 2; 31998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->listen = 0; 320ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom /* Set expected sequence numbers 321ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom * to continue the handshake. 322ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom */ 323ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->handshake_read_seq = 2; 324ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->handshake_write_seq = 1; 325ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom s->d1->next_handshake_write_seq = 1; 32698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom goto end; 32798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 32898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A: 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B: 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = dtls1_send_hello_verify_request(s); 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ( ret <= 0) goto end; 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 339221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* HelloVerifyRequest resets Finished MAC */ 340221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (s->version != DTLS1_BAD_VER) 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_init_finished_mac(s); 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 344392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 345392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom case DTLS1_SCTP_ST_SR_READ_SOCK: 346392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 347392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) 348392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 349392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->in_read_app_data=2; 350392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_READING; 351392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_clear_retry_flags(SSL_get_rbio(s)); 352392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_set_retry_read(SSL_get_rbio(s)); 353392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = -1; 354392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom goto end; 355392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 356392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 357392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 358392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom break; 359392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 360392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom case DTLS1_SCTP_ST_SW_WRITE_SOCK: 361392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s)); 362392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (ret < 0) goto end; 363392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 364392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (ret == 0) 365392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 366392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (s->d1->next_state != SSL_ST_OK) 367392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 368392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->in_read_app_data=2; 369392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_READING; 370392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_clear_retry_flags(SSL_get_rbio(s)); 371392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_set_retry_read(SSL_get_rbio(s)); 372392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom ret = -1; 373392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom goto end; 374392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 375392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 376392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 377392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=s->d1->next_state; 378392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom break; 379392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 380392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_HELLO_A: 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_HELLO_B: 383392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->renegotiate = 2; 38498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_hello(s); 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 38998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 390392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 391392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Add new shared key for SCTP-Auth, 392392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * will be ignored if no SCTP used. 393392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 394392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), 395392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom DTLS1_SCTP_AUTH_LABEL); 396392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 397392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom SSL_export_keying_material(s, sctpauthkey, 398392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), labelbuffer, 399392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(labelbuffer), NULL, 0, 0); 400392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 401392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, 402392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), sctpauthkey); 403392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 404392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 40598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->tlsext_ticket_expected) 40698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_A; 40798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 40898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 40998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#else 410392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 41198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 412392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_A; 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_A: 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_B: 420221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Check if it is anon DH or normal PSK */ 421221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) 422221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 42498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_certificate(s); 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 42798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 42898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->tlsext_status_expected) 42998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CERT_STATUS_A; 43098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 43198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 43298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 43398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 43498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 43598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom skip = 1; 43698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 43798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 43898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#else 439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 44298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_KEY_EXCH_A; 44498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_KEY_EXCH_A: 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_KEY_EXCH_B: 450221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* clear this, it may get reset by 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * send_server_key_exchange */ 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((s->options & SSL_OP_EPHEMERAL_RSA) 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_KRB5 456221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(alg_k & SSL_kKRB5) 457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif /* OPENSSL_NO_KRB5 */ 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * even when forbidden by protocol specs 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (handshake may fail as clients are not required to 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * be able to handle this) */ 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=1; 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=0; 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 467221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* only send if a DH key exchange or 468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * RSA but we have a sign only certificate */ 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.use_rsa_tmp 470221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* PSK: send ServerKeyExchange if PSK identity 471221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * hint if provided */ 472221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 473221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint) 474221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 475221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) 476221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (alg_k & SSL_kEECDH) 477221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || ((alg_k & SSL_kRSA) 478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL 479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) 480656d9c7f52f88b3a3daccafa7655dec086c4756eThe 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) 481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ) 485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 48698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_key_exchange(s); 488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_REQ_A; 494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_REQ_A: 498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CERT_REQ_B: 499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (/* don't request cert unless asked for it: */ 500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(s->verify_mode & SSL_VERIFY_PEER) || 501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* if SSL_VERIFY_CLIENT_ONCE is set, 502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * don't request cert during re-negotiation: */ 503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ((s->session->peer != NULL) && 504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) || 505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* never request cert in anonymous ciphersuites 506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (see section "Certificate request" in SSL 3 drafts 507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * and in RFC 2246): */ 508221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) && 509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* ... except when the application insists on verification 510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (against the specs, but s3_clnt.c accepts this for SSL 3) */ 511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) || 512221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* never request cert in Kerberos ciphersuites */ 513221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5) 514221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* With normal PSK Certificates and 515221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * Certificate Requests are omitted */ 516221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* no cert request */ 519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=1; 520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.cert_request=0; 521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_A; 522392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 523392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 524392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 525392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; 526392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; 527392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 528392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.cert_request=1; 53398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_certificate_request(s); 535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef NETSCAPE_HANG_BUG 537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_A; 538392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 539392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 540392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 541392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; 542392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; 543392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 544392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; 548392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 549392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 550392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 551392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = s->s3->tmp.next_state; 552392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK; 553392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 554392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_DONE_A: 561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_SRVR_DONE_B: 56298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_start_timer(s); 563656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_server_done(s); 564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; 566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FLUSH: 57198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->rwstate=SSL_WRITING; 57298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (BIO_flush(s->wbio) <= 0) 573656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 574392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* If the write error was fatal, stop trying */ 575392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (!BIO_should_retry(s->wbio)) 576392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 577392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->rwstate=SSL_NOTHING; 578392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=s->s3->tmp.next_state; 579392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 580392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 58198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret= -1; 58298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom goto end; 583656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 58498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->rwstate=SSL_NOTHING; 585656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=s->s3->tmp.next_state; 586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_A: 589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_B: 590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check for second client hello (MS SGC) */ 591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ssl3_check_client_hello(s); 592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret == 2) 59521c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom { 59621c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom dtls1_stop_timer(s); 597656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SR_CLNT_HELLO_C; 59821c841450af61d0a9119cdc863e93d019127bfe1Brian Carlstrom } 599656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else { 600656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* could be sent for a DH cert, even if we 601656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * have not asked for it :-) */ 602656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_client_certificate(s); 603656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 604656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 605656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SR_KEY_EXCH_A; 606656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 607656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 608656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 609656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_KEY_EXCH_A: 610656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_KEY_EXCH_B: 611656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_client_key_exchange(s); 612656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 613392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 614392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Add new shared key for SCTP-Auth, 615392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * will be ignored if no SCTP used. 616392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 617392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom snprintf((char *) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), 618392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom DTLS1_SCTP_AUTH_LABEL); 619392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 620392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom SSL_export_keying_material(s, sctpauthkey, 621392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), labelbuffer, 622392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(labelbuffer), NULL, 0, 0); 623392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 624392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, 625392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom sizeof(sctpauthkey), sctpauthkey); 626392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 627392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 628656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SR_CERT_VRFY_A; 629656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 630656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 631221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ret == 2) 632221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 633221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* For the ECDH ciphersuites when 634221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * the client sends its ECDH pub key in 635221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * a certificate, the CertificateVerify 636221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * message is not sent. 637221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 638221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 639221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->init_num = 0; 640221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 641221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 642221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 643221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->state=SSL3_ST_SR_CERT_VRFY_A; 644221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->init_num=0; 645656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 646221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* We need to get hashes here so if there is 647221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * a client cert, it can be verified */ 648221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->method->ssl3_enc->cert_verify_mac(s, 649221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NID_md5, 650221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom &(s->s3->tmp.cert_verify_md[0])); 651221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->method->ssl3_enc->cert_verify_mac(s, 652221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NID_sha1, 653221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH])); 654221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 655656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 656656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 657656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_VRFY_A: 658656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_CERT_VRFY_B: 659656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 66098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->change_cipher_spec_ok = 1; 661656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should decide if we expected this one */ 662656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_cert_verify(s); 663656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 664392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 665392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s)) && 666392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom state == SSL_ST_RENEGOTIATE) 667392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=DTLS1_SCTP_ST_SR_READ_SOCK; 668392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom else 669392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 670392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->state=SSL3_ST_SR_FINISHED_A; 671656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 672656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 673656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 674656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_FINISHED_A: 675656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SR_FINISHED_B: 67698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->change_cipher_spec_ok = 1; 677656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A, 678656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SR_FINISHED_B); 679656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 68098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_stop_timer(s); 681656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 682656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL_ST_OK; 68398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 68498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else if (s->tlsext_ticket_expected) 68598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_A; 68698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 687656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 688656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CHANGE_A; 689656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 690656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 691656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 69298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 69398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_SESSION_TICKET_A: 69498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_SESSION_TICKET_B: 69598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret=dtls1_send_newsession_ticket(s); 69698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret <= 0) goto end; 69798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_CHANGE_A; 69898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num=0; 69998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom break; 70098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 70198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_CERT_STATUS_A: 70298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom case SSL3_ST_SW_CERT_STATUS_B: 70398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom ret=ssl3_send_cert_status(s); 70498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ret <= 0) goto end; 70598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_KEY_EXCH_A; 70698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num=0; 70798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom break; 70898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 70998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 71098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 711656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CHANGE_A: 712656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_CHANGE_B: 713656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 714656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->session->cipher=s->s3->tmp.new_cipher; 715656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->method->ssl3_enc->setup_key_block(s)) 716656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { ret= -1; goto end; } 717656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 718656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_change_cipher_spec(s, 719656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B); 720656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 721656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 722392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 723392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 724392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Change to new shared key of SCTP-Auth, 725392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * will be ignored if no SCTP used. 726392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 727392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); 728392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 729392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 730656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FINISHED_A; 731656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 732656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 733656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->method->ssl3_enc->change_cipher_state(s, 734656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_CHANGE_CIPHER_SERVER_WRITE)) 735656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 736656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 737656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 738656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 739656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 740656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); 741656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 742656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 743656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FINISHED_A: 744656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL3_ST_SW_FINISHED_B: 745656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=dtls1_send_finished(s, 746656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B, 747656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->method->ssl3_enc->server_finished_label, 748656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->method->ssl3_enc->server_finished_label_len); 749656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) goto end; 750656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_FLUSH; 751656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->hit) 752656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A; 753656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 754392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 755656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.next_state=SSL_ST_OK; 756392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 757392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (BIO_dgram_is_sctp(SSL_get_wbio(s))) 758392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 759392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->d1->next_state = s->s3->tmp.next_state; 760392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK; 761392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 762392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 763392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 764656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 765656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 766656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 767656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL_ST_OK: 768656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* clean a few things up */ 769656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_cleanup_key_block(s); 770656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 771656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 772656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM_free(s->init_buf); 773656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_buf=NULL; 774656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 775656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 776656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* remove buffering on output */ 777656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl_free_wbio_buffer(s); 778656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 779656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=0; 780656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 781392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (s->renegotiate == 2) /* skipped if we just sent a HelloRequest */ 782656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 783392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom s->renegotiate=0; 784656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->new_session=0; 785656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 786656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl_update_cache(s,SSL_SESS_CACHE_SERVER); 787656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 788656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->ctx->stats.sess_accept_good++; 789656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->server=1; */ 790656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->handshake_func=dtls1_accept; 791656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 792656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); 793656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 794656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 795656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = 1; 796656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 797656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* done handshaking, next message is client hello */ 798656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_read_seq = 0; 799656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* next message is server hello */ 800656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_write_seq = 0; 80198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->d1->next_handshake_write_seq = 0; 802656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 803656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* break; */ 804656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 805656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 806656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_UNKNOWN_STATE); 807656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= -1; 808656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 809656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* break; */ 810656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 811656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 812656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->s3->tmp.reuse_message && !skip) 813656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 814656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->debug) 815656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 816656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ret=BIO_flush(s->wbio)) <= 0) 817656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 818656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 819656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 820656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 821656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((cb != NULL) && (s->state != state)) 822656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 823656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project new_state=s->state; 824656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=state; 825656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb(s,SSL_CB_ACCEPT_LOOP,1); 826656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=new_state; 827656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 828656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 829656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skip=0; 830656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 831656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectend: 832656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* BIO_flush(s->wbio); */ 833656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 834656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->in_handshake--; 835392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SCTP 836392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom /* Notify SCTP BIO socket to leave handshake 837392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * mode and prevent stream identifier other 838392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * than 0. Will be ignored if no SCTP is used. 839392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 840392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL); 841392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 842392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 843656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (cb != NULL) 844656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cb(s,SSL_CB_ACCEPT_EXIT,ret); 845656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 846656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 847656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 848656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_hello_request(SSL *s) 849656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 850656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 851656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 852656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_HELLO_REQ_A) 853656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 854656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data; 855656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = dtls1_set_message_header(s, p, SSL3_MT_HELLO_REQUEST, 0, 0, 0); 856656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 857656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_HELLO_REQ_B; 858656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 859656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=DTLS1_HM_HEADER_LENGTH; 860656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 861656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 862656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* no need to buffer this message, since there are no retransmit 863656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * requests for it */ 864656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 865656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 866656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_HELLO_REQ_B */ 867656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 868656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 869656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 870656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_hello_verify_request(SSL *s) 871656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 872656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int msg_len; 873656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *msg, *buf, *p; 874656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 875656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A) 876656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 877656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf = (unsigned char *)s->init_buf->data; 878656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 879656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg = p = &(buf[DTLS1_HM_HEADER_LENGTH]); 880221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++) = s->version >> 8; 881221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++) = s->version & 0xFF; 882656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 88398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->ctx->app_gen_cookie_cb == NULL || 88498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->ctx->app_gen_cookie_cb(s, s->d1->cookie, 88598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom &(s->d1->cookie_len)) == 0) 886656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 887656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST,ERR_R_INTERNAL_ERROR); 888656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 889656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 890656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 891656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++) = (unsigned char) s->d1->cookie_len; 892656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p, s->d1->cookie, s->d1->cookie_len); 893656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p += s->d1->cookie_len; 894656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg_len = p - msg; 895656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 896656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_set_message_header(s, buf, 897656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DTLS1_MT_HELLO_VERIFY_REQUEST, msg_len, 0, msg_len); 898656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 899656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B; 900656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 901656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=p-buf; 902656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 903656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 904656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 905656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B */ 906656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 907656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 908656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 909656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_hello(SSL *s) 910656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 911656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *buf; 912656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 913656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 914656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int sl; 915656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long l,Time; 916656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 917656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_SRVR_HELLO_A) 918656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 919656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=(unsigned char *)s->init_buf->data; 920656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=s->s3->server_random; 921656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project Time=(unsigned long)time(NULL); /* Time */ 922656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2n(Time,p); 923a1a5710c055e139ea00e785f9eb55b3af3e4dab1Brian Carlstrom RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4); 924656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do the message type and length last */ 925656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); 926656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 927221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++)=s->version>>8; 928221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *(p++)=s->version&0xff; 929656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 930656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Random stuff */ 931656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE); 932656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=SSL3_RANDOM_SIZE; 933656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 934656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* now in theory we have 3 options to sending back the 935656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * session id. If it is a re-use, we send back the 936656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * old session-id, if it is a new session, we send 937656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * back the new session-id or we send back a 0 length 938656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * session-id if we want it to be single use. 939656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Currently I will not implement the '0' length session-id 940656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12-Jan-98 - I'll now support the '0' length stuff. 941656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 942656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER)) 943656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->session->session_id_length=0; 944656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 945656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sl=s->session->session_id_length; 946656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sl > sizeof s->session->session_id) 947656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 948656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR); 949656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 950656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 951656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=sl; 952656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(p,s->session->session_id,sl); 953656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=sl; 954656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 955656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* put the cipher */ 95698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->s3->tmp.new_cipher == NULL) 95798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 958656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p); 959656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=i; 960656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 961656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* put the compression method */ 962656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef OPENSSL_NO_COMP 963656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 964656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 965656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.new_compression == NULL) 966656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 967656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 968656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=s->s3->tmp.new_compression->id; 969656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 970656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 97198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 97298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if ((p = ssl_add_serverhello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) 97398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 97498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,ERR_R_INTERNAL_ERROR); 97598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 97698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 97798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 97898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 979656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 980656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=(p-d); 981656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=buf; 982656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 983656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l); 984656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 985e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu s->state=SSL3_ST_SW_SRVR_HELLO_B; 986656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 987656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=p-buf; 988656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 989656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 990656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 991656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 992656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 993656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 994e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu /* SSL3_ST_SW_SRVR_HELLO_B */ 995656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 996656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 997656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 998656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_done(SSL *s) 999656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1000656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 1001656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1002656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_SRVR_DONE_A) 1003656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1004656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data; 1005656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1006656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 1007656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = dtls1_set_message_header(s, p, SSL3_MT_SERVER_DONE, 0, 0, 0); 1008656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1009656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_SRVR_DONE_B; 1010656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* number of bytes to write */ 1011656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=DTLS1_HM_HEADER_LENGTH; 1012656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1013656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1014656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1015656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1016656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1017656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1018e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu /* SSL3_ST_SW_SRVR_DONE_B */ 1019656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1020656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1021656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1022656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_key_exchange(SSL *s) 1023656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1024656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1025656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *q; 1026656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int j,num; 1027656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RSA *rsa; 1028656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; 1029656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int u; 1030656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1031656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DH 1032656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DH *dh=NULL,*dhp; 1033656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1034221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1035221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY *ecdh=NULL, *ecdhp; 1036221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned char *encodedPoint = NULL; 1037221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int encodedlen = 0; 1038221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int curve_id = 0; 1039221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX *bn_ctx = NULL; 1040221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1041656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_PKEY *pkey; 1042656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 1043656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int al,i; 1044656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long type; 1045656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int n; 1046656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CERT *cert; 1047656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM *r[4]; 1048656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int nr[4],kn; 1049656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *buf; 1050656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX md_ctx; 1051656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1052656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_init(&md_ctx); 1053656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_KEY_EXCH_A) 1054656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1055221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom type=s->s3->tmp.new_cipher->algorithm_mkey; 1056656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cert=s->cert; 1057656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1058656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=s->init_buf; 1059656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1060656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=r[1]=r[2]=r[3]=NULL; 1061656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=0; 1062656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1063656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (type & SSL_kRSA) 1064656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1065656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsa=cert->rsa_tmp; 1066656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL)) 1067656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1068656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rsa=s->cert->rsa_tmp_cb(s, 1069656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1070656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1071656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(rsa == NULL) 1072656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1073656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1074656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY); 1075656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1076656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1077656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RSA_up_ref(rsa); 1078656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cert->rsa_tmp=rsa; 1079656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1080656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (rsa == NULL) 1081656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1082656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1083656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY); 1084656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1085656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1086656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=rsa->n; 1087656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[1]=rsa->e; 1088656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.use_rsa_tmp=1; 1089656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1090656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1091656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1092656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DH 1093656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (type & SSL_kEDH) 1094656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1095656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp=cert->dh_tmp; 1096656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL)) 1097656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp=s->cert->dh_tmp_cb(s, 1098656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1099656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (dhp == NULL) 1101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY); 1104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s3->tmp.dh != NULL) 1108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DH_free(dh); 1110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); 1111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dh=DHparams_dup(dhp)) == NULL) 1115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); 1117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s3->tmp.dh=dh; 1121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dhp->pub_key == NULL || 1122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dhp->priv_key == NULL || 1123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->options & SSL_OP_SINGLE_DH_USE))) 1124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!DH_generate_key(dh)) 1126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, 1128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_DH_LIB); 1129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dh->pub_key=BN_dup(dhp->pub_key); 1135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dh->priv_key=BN_dup(dhp->priv_key); 1136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((dh->pub_key == NULL) || 1137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (dh->priv_key == NULL)) 1138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); 1140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[0]=dh->p; 1144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[1]=dh->g; 1145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r[2]=dh->pub_key; 1146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1149221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1150221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kEECDH) 1151221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1152221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom const EC_GROUP *group; 1153221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1154221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ecdhp=cert->ecdh_tmp; 1155221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL)) 1156221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1157221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ecdhp=s->cert->ecdh_tmp_cb(s, 1158221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), 1159221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); 1160221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1161221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ecdhp == NULL) 1162221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1163221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom al=SSL_AD_HANDSHAKE_FAILURE; 1164221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY); 1165221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto f_err; 1166221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1167221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1168221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (s->s3->tmp.ecdh != NULL) 1169221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1170221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_free(s->s3->tmp.ecdh); 1171221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); 1172221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1173221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1174221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1175221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Duplicate the ECDH structure. */ 1176221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ecdhp == NULL) 1177221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1178221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1179221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1180221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1181ee7afb3c942c4eefef6ed06201eafaf8ec58e2e3Brian Carlstrom if ((ecdh = EC_KEY_dup(ecdhp)) == NULL) 1182221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1183221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1184221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1185221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1186221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1187221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s->s3->tmp.ecdh=ecdh; 1188221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((EC_KEY_get0_public_key(ecdh) == NULL) || 1189221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_private_key(ecdh) == NULL) || 1190221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->options & SSL_OP_SINGLE_ECDH_USE)) 1191221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1192221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if(!EC_KEY_generate_key(ecdh)) 1193221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1194221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1195221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1196221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1197221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1198221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1199221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (((group = EC_KEY_get0_group(ecdh)) == NULL) || 1200221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_public_key(ecdh) == NULL) || 1201221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_KEY_get0_private_key(ecdh) == NULL)) 1202221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1203221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1204221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1205221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1206221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1207221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && 1208221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (EC_GROUP_get_degree(group) > 163)) 1209221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1210221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER); 1211221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1212221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1213221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1214221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support ephemeral ECDH 1215221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * keys over named (not generic) curves. For 1216221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * supported named curves, curve_id is non-zero. 1217221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1218221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((curve_id = 1219221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group))) 1220221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom == 0) 1221221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1222221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE); 1223221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1224221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1225221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1226221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* Encode the public key. 1227221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * First check the size of encoding and 1228221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * allocate memory accordingly. 1229221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1230221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen = EC_POINT_point2oct(group, 1231221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_get0_public_key(ecdh), 1232221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom POINT_CONVERSION_UNCOMPRESSED, 1233221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom NULL, 0, NULL); 1234221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1235221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedPoint = (unsigned char *) 1236221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom OPENSSL_malloc(encodedlen*sizeof(unsigned char)); 1237221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom bn_ctx = BN_CTX_new(); 1238221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((encodedPoint == NULL) || (bn_ctx == NULL)) 1239221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1240221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); 1241221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1242221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1243221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1244221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1245221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen = EC_POINT_point2oct(group, 1246221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EC_KEY_get0_public_key(ecdh), 1247221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom POINT_CONVERSION_UNCOMPRESSED, 1248221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedPoint, encodedlen, bn_ctx); 1249221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1250221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (encodedlen == 0) 1251221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1252221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB); 1253221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1254221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1255221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1256221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX_free(bn_ctx); bn_ctx=NULL; 1257221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1258221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support named (not 1259221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * generic) curves in ECDH ephemeral key exchanges. 1260221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * In this situation, we need four additional bytes 1261221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * to encode the entire ServerECDHParams 1262221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * structure. 1263221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1264221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n = 4 + encodedlen; 1265221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1266221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* We'll generate the serverKeyExchange message 1267221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * explicitly so we can set these to NULLs 1268221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1269221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[0]=NULL; 1270221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[1]=NULL; 1271221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[2]=NULL; 1272221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom r[3]=NULL; 1273221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1274221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1275221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif /* !OPENSSL_NO_ECDH */ 1276221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 1277221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kPSK) 1278221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1279221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* reserve size for record length and PSK identity hint*/ 1280221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n+=2+strlen(s->ctx->psk_identity_hint); 1281221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1282221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1283221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif /* !OPENSSL_NO_PSK */ 1284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); 1287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; r[i] != NULL; i++) 1290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nr[i]=BN_num_bytes(r[i]); 1292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2+nr[i]; 1293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1295221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) 1296221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) 1297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1298392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher, NULL)) 1299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project == NULL) 1300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_DECODE_ERROR; 1302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project kn=EVP_PKEY_size(pkey); 1305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pkey=NULL; 1309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project kn=0; 1310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BUF_MEM_grow_clean(buf,n+DTLS1_HM_HEADER_LENGTH+kn)) 1313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF); 1315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=(unsigned char *)s->init_buf->data; 1318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p= &(d[DTLS1_HM_HEADER_LENGTH]); 1319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; r[i] != NULL; i++) 1321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(nr[i],p); 1323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BN_bn2bin(r[i],p); 1324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=nr[i]; 1325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1327221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1328221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kEECDH) 1329221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1330221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* XXX: For now, we only support named (not generic) curves. 1331221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * In this situation, the serverKeyExchange message has: 1332221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * [1 byte CurveType], [2 byte CurveName] 1333221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * [1 byte length of encoded point], followed by 1334221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * the actual encoded point itself 1335221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom */ 1336221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = NAMED_CURVE_TYPE; 1337221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1338221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = 0; 1339221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1340221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = curve_id; 1341221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1342221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom *p = encodedlen; 1343221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += 1; 1344221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom memcpy((unsigned char*)p, 1345221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (unsigned char *)encodedPoint, 1346221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom encodedlen); 1347221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom OPENSSL_free(encodedPoint); 1348221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p += encodedlen; 1349221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1350221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1351221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1352221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_PSK 1353221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (type & SSL_kPSK) 1354221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1355221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* copy PSK identity hint */ 1356221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s2n(strlen(s->ctx->psk_identity_hint), p); 1357221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom strncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint)); 1358221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p+=strlen(s->ctx->psk_identity_hint); 1359221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1360221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1361221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 1362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* not anonymous */ 1363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey != NULL) 1364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* n is the length of the params, they start at 1366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * &(d[DTLS1_HM_HEADER_LENGTH]) and p points to the space 1367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * at the end. */ 1368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RSA 1369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey->type == EVP_PKEY_RSA) 1370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project q=md_buf; 1372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=0; 1373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (num=2; num > 0; num--) 1374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestInit_ex(&md_ctx,(num == 2) 1376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ?s->ctx->md5:s->ctx->sha1, NULL); 1377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 1379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestFinal_ex(&md_ctx,q, 1381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int *)&i); 1382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project q+=i; 1383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j+=i; 1384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (RSA_sign(NID_md5_sha1, md_buf, j, 1386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &(p[2]), &u, pkey->pkey.rsa) <= 0) 1387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA); 1389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(u,p); 1392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=u+2; 1393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if !defined(OPENSSL_NO_DSA) 1397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pkey->type == EVP_PKEY_DSA) 1398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* lets do DSS */ 1400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL); 1401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 1403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!EVP_SignFinal(&md_ctx,&(p[2]), 1405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int *)&i,pkey)) 1406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA); 1408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(i,p); 1411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=i+2; 1412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1415221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#if !defined(OPENSSL_NO_ECDSA) 1416221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (pkey->type == EVP_PKEY_EC) 1417221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1418221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* let's do ECDSA */ 1419221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL); 1420221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); 1421221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); 14227b476c43f6a45574eb34697244b592e7b09f05a3Brian Carlstrom EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); 1423221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!EVP_SignFinal(&md_ctx,&(p[2]), 1424221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (unsigned int *)&i,pkey)) 1425221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1426221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA); 1427221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom goto err; 1428221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1429221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom s2n(i,p); 1430221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n+=i+2; 1431221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1432221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else 1433221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Is this error check actually needed? */ 1436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project al=SSL_AD_HANDSHAKE_FAILURE; 1437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE); 1438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto f_err; 1439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d = dtls1_set_message_header(s, d, 1443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_MT_SERVER_KEY_EXCHANGE, n, 0, n); 1444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should now have things packed up, so lets send 1446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * it off */ 1447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=n+DTLS1_HM_HEADER_LENGTH; 1448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_KEY_EXCH_B; 1455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_cleanup(&md_ctx); 1456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectf_err: 1458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl3_send_alert(s,SSL3_AL_FATAL,al); 1459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 1460221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#ifndef OPENSSL_NO_ECDH 1461221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (encodedPoint != NULL) OPENSSL_free(encodedPoint); 1462221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom BN_CTX_free(bn_ctx); 1463221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom#endif 1464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_cleanup(&md_ctx); 1465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 1466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_certificate_request(SSL *s) 1469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p,*d; 1471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,j,nl,off,n; 1472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project STACK_OF(X509_NAME) *sk=NULL; 1473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_NAME *name; 1474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BUF_MEM *buf; 1475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int msg_len; 1476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_CERT_REQ_A) 1478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf=s->init_buf; 1480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH]); 1482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* get the list of acceptable cert types */ 1484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p++; 1485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=ssl3_get_req_cert_type(s,p); 1486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[0]=n; 1487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=n; 1488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n++; 1489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project off=n; 1491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p+=2; 1492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2; 1493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sk=SSL_get_client_CA_list(s); 1495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl=0; 1496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sk != NULL) 1497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<sk_X509_NAME_num(sk); i++) 1499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project name=sk_X509_NAME_value(sk,i); 1501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=i2d_X509_NAME(name,NULL); 1502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BUF_MEM_grow_clean(buf,DTLS1_HM_HEADER_LENGTH+n+j+2)) 1503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_DTLS1_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB); 1505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 1506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+n]); 1508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG)) 1509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(j,p); 1511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i2d_X509_NAME(name,&p); 1512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=2+j; 1513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl+=2+j; 1514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1515656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 1516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=p; 1518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i2d_X509_NAME(name,&p); 1519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j-=2; s2n(j,d); j+=2; 1520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=j; 1521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nl+=j; 1522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* else no CA names */ 1526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+off]); 1527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(nl,p); 1528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=(unsigned char *)buf->data; 1530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(d++)=SSL3_MT_CERTIFICATE_REQUEST; 1531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2n3(n,d); 1532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s2n(s->d1->handshake_write_seq,d); 1533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->d1->handshake_write_seq++; 1534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we should now have things packed up, so lets send 1536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * it off */ 1537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=n+DTLS1_HM_HEADER_LENGTH; 1539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef NETSCAPE_HANG_BUG 1541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* XXX: what to do about this? */ 1542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data + s->init_num; 1543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do the header */ 1545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=SSL3_MT_SERVER_DONE; 1546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *(p++)=0; 1549656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num += 4; 1550656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1551656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1552656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* XDTLS: set message header ? */ 1553656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH; 1554656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_set_message_header(s, (void *)s->init_buf->data, 1555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSL3_MT_CERTIFICATE_REQUEST, msg_len, 0, msg_len); 1556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state = SSL3_ST_SW_CERT_REQ_B; 1561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1562656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1563656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_CERT_REQ_B */ 1564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 1566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 1567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint dtls1_send_server_certificate(SSL *s) 1570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1571656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long l; 1572656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *x; 1573656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1574656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->state == SSL3_ST_SW_CERT_A) 1575656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1576656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x=ssl_get_server_send_cert(s); 1577221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (x == NULL) 1578656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 1579221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* VRS: allow null cert if auth == KRB5 */ 1580221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((s->s3->tmp.new_cipher->algorithm_mkey != SSL_kKRB5) || 1581221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->s3->tmp.new_cipher->algorithm_auth != SSL_aKRB5)) 1582221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 1583221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR); 1584221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return(0); 1585221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 1586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=dtls1_output_cert_chain(s,x); 1589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->state=SSL3_ST_SW_CERT_B; 1590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num=(int)l; 1591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off=0; 1592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buffer the message to handle re-xmits */ 1594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dtls1_buffer_message(s, 0); 1595656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 1596656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1597656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* SSL3_ST_SW_CERT_B */ 1598656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 1599656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 160098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 160198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#ifndef OPENSSL_NO_TLSEXT 160298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstromint dtls1_send_newsession_ticket(SSL *s) 160398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 160498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (s->state == SSL3_ST_SW_SESSION_TICKET_A) 160598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 160698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char *p, *senc, *macstart; 160798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom int len, slen; 160898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned int hlen, msg_len; 160998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX ctx; 161098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX hctx; 161198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSL_CTX *tctx = s->initial_ctx; 161298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char iv[EVP_MAX_IV_LENGTH]; 161398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom unsigned char key_name[16]; 161498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 161598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* get session encoding length */ 161698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom slen = i2d_SSL_SESSION(s->session, NULL); 161798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Some length values are 16 bits, so forget it if session is 161898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * too long 161998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 162098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (slen > 0xFF00) 162198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 162298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Grow buffer if need be: the length calculation is as 162398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * follows 12 (DTLS handshake message header) + 162498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * 4 (ticket lifetime hint) + 2 (ticket length) + 162598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * 16 (key name) + max_iv_len (iv length) + 162698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * session_length + max_enc_block_size (max encrypted session 162798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * length) + max_md_size (HMAC). 162898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 162998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (!BUF_MEM_grow(s->init_buf, 163098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom DTLS1_HM_HEADER_LENGTH + 22 + EVP_MAX_IV_LENGTH + 163198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + slen)) 163298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 163398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom senc = OPENSSL_malloc(slen); 163498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (!senc) 163598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 163698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p = senc; 163798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom i2d_SSL_SESSION(s->session, &p); 163898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 163998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]); 164098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX_init(&ctx); 164198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX_init(&hctx); 164298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Initialize HMAC and cipher contexts. If callback present 164398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * it does all the work otherwise use generated values 164498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom * from parent ctx. 164598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom */ 164698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (tctx->tlsext_ticket_key_cb) 164798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 164898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (tctx->tlsext_ticket_key_cb(s, key_name, iv, &ctx, 164998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom &hctx, 1) < 0) 165098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 165198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom OPENSSL_free(senc); 165298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return -1; 165398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 165498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 165598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom else 165698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom { 165798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom RAND_pseudo_bytes(iv, 16); 165898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL, 165998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom tctx->tlsext_tick_aes_key, iv); 166098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16, 166198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom tlsext_tick_md(), NULL); 166298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(key_name, tctx->tlsext_tick_key_name, 16); 166398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 166498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom l2n(s->session->tlsext_tick_lifetime_hint, p); 166598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Skip ticket length for now */ 166698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += 2; 166798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Output key name */ 166898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom macstart = p; 166998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(p, key_name, 16); 167098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += 16; 167198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* output IV */ 167298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom memcpy(p, iv, EVP_CIPHER_CTX_iv_length(&ctx)); 167398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += EVP_CIPHER_CTX_iv_length(&ctx); 167498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Encrypt session data */ 167598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptUpdate(&ctx, p, &len, senc, slen); 167698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += len; 167798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_EncryptFinal(&ctx, p, &len); 167898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += len; 167998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom EVP_CIPHER_CTX_cleanup(&ctx); 168098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 168198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Update(&hctx, macstart, p - macstart); 168298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_Final(&hctx, p, &hlen); 168398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom HMAC_CTX_cleanup(&hctx); 168498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 168598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p += hlen; 168698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Now write out lengths: p points to end of data written */ 168798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Total length */ 168898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom len = p - (unsigned char *)(s->init_buf->data); 168998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* Ticket length */ 169098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]) + 4; 169198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s2n(len - DTLS1_HM_HEADER_LENGTH - 6, p); 169298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 169398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* number of bytes to write */ 169498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_num= len; 169598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->state=SSL3_ST_SW_SESSION_TICKET_B; 169698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom s->init_off=0; 169798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom OPENSSL_free(senc); 169898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 169998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* XDTLS: set message header ? */ 170098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH; 170198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_set_message_header(s, (void *)s->init_buf->data, 170298d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom SSL3_MT_NEWSESSION_TICKET, msg_len, 0, msg_len); 170398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 170498d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* buffer the message to handle re-xmits */ 170598d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom dtls1_buffer_message(s, 0); 170698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 170798d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom 170898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom /* SSL3_ST_SW_SESSION_TICKET_B */ 170998d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); 171098d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom } 171198d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom#endif 1712