1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ssl/s2_pkt.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; 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, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * openssl-core@openssl.org. 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "ssl_locl.h" 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_SSL2 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <errno.h> 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define USE_SOCKETS 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int read_n(SSL *s,unsigned int n,unsigned int max,unsigned int extend); 119221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len); 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int write_pending(SSL *s, const unsigned char *buf, unsigned int len); 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ssl_mt_error(int n); 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* SSL 2.0 imlementation for SSL_read/SSL_peek - 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This routine will return 0 to len bytes, decrypted etc if required. 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ssl2_read_internal(SSL *s, void *buf, int len, int peek) 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int n; 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char mac[MAX_MAC_SIZE]; 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 133221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int mac_size; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_read_again: 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (SSL_in_init(s) && !s->in_handshake) 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=s->handshake_func(s); 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n < 0) return(n); 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n == 0) 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_SSL_HANDSHAKE_FAILURE); 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project clear_sys_error(); 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_NOTHING; 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (len <= 0) return(len); 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->ract_data_length != 0) /* read from buffer */ 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (len > s->s2->ract_data_length) 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=s->s2->ract_data_length; 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=len; 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(buf,s->s2->ract_data,(unsigned int)n); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!peek) 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data_length-=n; 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data+=n; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->ract_data_length == 0) 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rstate=SSL_ST_READ_HEADER; 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(n); 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->s2->ract_data_length == 0 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Fill the buffer, then goto ssl2_read_again. 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->rstate == SSL_ST_READ_HEADER) 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->first_packet) 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=read_n(s,5,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0); 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n <= 0) return(n); /* error or non-blocking */ 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->first_packet=0; 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=s->packet; 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!((p[0] & 0x80) && ( 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p[2] == SSL2_MT_CLIENT_HELLO) || 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p[2] == SSL2_MT_SERVER_HELLO)))) 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_NON_SSLV2_INITIAL_PACKET); 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=read_n(s,2,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0); 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n <= 0) return(n); /* error or non-blocking */ 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* part read stuff */ 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rstate=SSL_ST_READ_BODY; 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=s->packet; 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do header */ 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /*s->s2->padding=0;*/ 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->escape=0; 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rlength=(((unsigned int)p[0])<<8)|((unsigned int)p[1]); 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((p[0] & TWO_BYTE_BIT)) /* Two byte header? */ 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=0; 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rlength&=TWO_BYTE_MASK; 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=1; 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rlength&=THREE_BYTE_MASK; 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* security >s2->escape */ 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->escape=((p[0] & SEC_ESC_BIT))?1:0; 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->rstate == SSL_ST_READ_BODY) 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=s->s2->rlength+2+s->s2->three_byte_header; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n > (int)s->packet_length) 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n-=s->packet_length; 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=read_n(s,(unsigned int)n,(unsigned int)n,1); 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) return(i); /* ERROR */ 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p= &(s->packet[2]); 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rstate=SSL_ST_READ_HEADER; 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->three_byte_header) 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->padding= *(p++); 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else s->s2->padding=0; 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Data portion */ 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->clear_text) 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mac_size = 0; 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->mac_data=p; 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data=p; 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->padding) 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING); 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 249221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom mac_size=EVP_MD_CTX_size(s->read_hash); 250221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (mac_size < 0) 251221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return -1; 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_assert(mac_size <= MAX_MAC_SIZE); 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->mac_data=p; 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data= &p[mac_size]; 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->padding + mac_size > s->s2->rlength) 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING); 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data_length=s->s2->rlength; 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* added a check for length > max_size in case 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * encryption was not turned on yet due to an error */ 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((!s->s2->clear_text) && 266221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (s->s2->rlength >= (unsigned int)mac_size)) 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_enc(s,0); 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data_length-=mac_size; 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_mac(s,mac,0); 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->ract_data_length-=s->s2->padding; 272a8e686a4003378654e3fa598a929331692beaaf7Brian Carlstrom if ( (CRYPTO_memcmp(mac,s->s2->mac_data,mac_size) != 0) || 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->s2->rlength%EVP_CIPHER_CTX_block_size(s->enc_read_ctx) != 0)) 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_MAC_DECODE); 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project INC32(s->s2->read_sequence); /* expect next number */ 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->s2->ract_data is now available for processing */ 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Possibly the packet that we just read had 0 actual data bytes. 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (SSLeay/OpenSSL itself never sends such packets; see ssl2_write.) 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * In this case, returning 0 would be interpreted by the caller 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as indicating EOF, so it's not a good idea. Instead, we just 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * continue reading; thus ssl2_read_internal may have to process 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * multiple packets before it can return. 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [Note that using select() for blocking sockets *never* guarantees 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * that the next SSL_read will not block -- the available 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * data may contain incomplete packets, and except for SSL 2, 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * renegotiation can confuse things even more.] */ 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto ssl2_read_again; /* This should really be 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "return ssl2_read(s,buf,len)", 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * but that would allow for 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * denial-of-service attacks if a 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * C compiler is used that does not 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * recognize end-recursion. */ 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_STATE); 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ssl2_read(SSL *s, void *buf, int len) 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ssl2_read_internal(s, buf, len, 0); 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ssl2_peek(SSL *s, void *buf, int len) 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ssl2_read_internal(s, buf, len, 1); 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int read_n(SSL *s, unsigned int n, unsigned int max, 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int extend) 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,off,newb; 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* if there is stuff still in the buffer from a previous read, 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * and there is more than we want, take some. */ 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->rbuf_left >= (int)n) 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (extend) 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet_length+=n; 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet= &(s->s2->rbuf[s->s2->rbuf_offs]); 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet_length=n; 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_left-=n; 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_offs+=n; 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(n); 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->read_ahead) max=n; 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (max > (unsigned int)(SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project max=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2; 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Else we want more than we have. 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * First, if there is some left or we want to extend */ 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project off=0; 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((s->s2->rbuf_left != 0) || ((s->packet_length != 0) && extend)) 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project newb=s->s2->rbuf_left; 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (extend) 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project off=s->packet_length; 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->packet != s->s2->rbuf) 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(s->s2->rbuf,s->packet, 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int)newb+off); 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (s->s2->rbuf_offs != 0) 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(s->s2->rbuf,&(s->s2->rbuf[s->s2->rbuf_offs]), 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int)newb); 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_offs=0; 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_left=0; 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project newb=0; 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* off is the offset to start writing too. 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * r->s2->rbuf_offs is the 'unread data', now 0. 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * newb is the number of new bytes so far 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet=s->s2->rbuf; 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (newb < (int)n) 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project clear_sys_error(); 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->rbio != NULL) 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_READING; 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=BIO_read(s->rbio,(char *)&(s->s2->rbuf[off+newb]), 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project max-newb); 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_READ_N,SSL_R_READ_BIO_NOT_SET); 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i= -1; 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef PKT_DEBUG 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->debug & 0x01) sleep(1); 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_left+=newb; 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(i); 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project newb+=i; 396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* record unread data */ 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (newb > (int)n) 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_offs=n+off; 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_left=newb-n; 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_offs=0; 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->rbuf_left=0; 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (extend) 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet_length+=n; 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->packet_length=n; 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_NOTHING; 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(n); 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ssl2_write(SSL *s, const void *_buf, int len) 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const unsigned char *buf=_buf; 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int n,tot; 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (SSL_in_init(s) && !s->in_handshake) 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=s->handshake_func(s); 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i < 0) return(i); 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i == 0) 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_SSL2_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE); 430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->error) 435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_write_error(s); 437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->error) 438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project clear_sys_error(); 442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_NOTHING; 443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (len <= 0) return(len); 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tot=s->s2->wnum; 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wnum=0; 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=(len-tot); 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 451221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom i=n_do_ssl_write(s,&(buf[tot]),n); 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wnum=tot; 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(i); 456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((i == (int)n) || 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE)) 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(tot+i); 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n-=i; 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tot+=i; 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int write_pending(SSL *s, const unsigned char *buf, unsigned int len) 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* s->s2->wpend_len != 0 MUST be true. */ 473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* check that they have given us the same buffer to 475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * write */ 476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((s->s2->wpend_tot > (int)len) || 477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ((s->s2->wpend_buf != buf) && 478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))) 479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_WRITE_PENDING,SSL_R_BAD_WRITE_RETRY); 481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project clear_sys_error(); 487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->wbio != NULL) 488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_WRITING; 490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=BIO_write(s->wbio, 491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (char *)&(s->s2->write_ptr[s->s2->wpend_off]), 492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int)s->s2->wpend_len); 493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr(SSL_F_WRITE_PENDING,SSL_R_WRITE_BIO_NOT_SET); 497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i= -1; 498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef PKT_DEBUG 500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->debug & 0x01) sleep(1); 501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i == s->s2->wpend_len) 503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_len=0; 505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->rwstate=SSL_NOTHING; 506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(s->s2->wpend_ret); 507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (i <= 0) 509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(i); 510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_off+=i; 511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_len-=i; 512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 515221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len) 516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 517221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned int j,k,olen,p,bs; 518221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom int mac_size; 519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register unsigned char *pp; 520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project olen=len; 522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* first check if there is data from an encryption waiting to 524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * be sent - it must be sent because the other end is waiting. 525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This will happen with non-blocking IO. We print it and then 526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * return. 527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->wpend_len != 0) return(write_pending(s,buf,len)); 529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* set mac_size to mac size */ 531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->clear_text) 532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mac_size=0; 533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 534221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 535221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom mac_size=EVP_MD_CTX_size(s->write_hash); 536221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (mac_size < 0) 537221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return -1; 538221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* lets set the pad p */ 541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->clear_text) 542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (len > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER) 544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER; 545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=0; 546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=0; 547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* len=len; */ 548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 549656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 550656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 551656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bs=EVP_CIPHER_CTX_block_size(s->enc_read_ctx); 552656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=len+mac_size; 553656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Two-byte headers allow for a larger record length than 554656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * three-byte headers, but we can't use them if we need 555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * padding or if we have to set the escape bit. */ 556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) && 557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (!s->s2->escape)) 558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (j > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER) 560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER; 561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* set k to the max number of bytes with 2 562656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * byte header */ 563656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project k=j-(j%bs); 564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* how many data bytes? */ 565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len=k-mac_size; 566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=0; 567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=0; 568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if ((bs <= 1) && (!s->s2->escape)) 570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 571656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, thus 572656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER */ 573656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=0; 574656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=0; 575656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 576656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else /* we may have to use a 3 byte header */ 577656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 578656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If s->s2->escape is not set, then 579656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, and thus 580656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER. */ 581656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(j%bs); 582656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(p == 0)?0:(bs-p); 583656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->escape) 584656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 585656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=1; 586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) 587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER; 588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->three_byte_header=(p == 0)?0:1; 591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Now 595656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * j <= SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 596656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * holds, and if s->s2->three_byte_header is set, then even 597656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER. 598656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 599656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 600656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* mac_size is the number of MAC bytes 601656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * len is the number of data bytes we are going to send 602656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * p is the number of padding bytes 603656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (if it is a two-byte header, then p == 0) */ 604656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 605656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wlength=len; 606656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->padding=p; 607656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->mac_data= &(s->s2->wbuf[3]); 608656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wact_data= &(s->s2->wbuf[3+mac_size]); 609656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we copy the data into s->s2->wbuf */ 610656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(s->s2->wact_data,buf,len); 611656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (p) 612656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memset(&(s->s2->wact_data[len]),0,p); /* arbitrary padding */ 613656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 614656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!s->s2->clear_text) 615656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 616656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wact_data_length=len+p; 617656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_mac(s,s->s2->mac_data,1); 618656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wlength+=p+mac_size; 619656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ssl2_enc(s,1); 620656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 621656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 622656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* package up the header */ 623656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_len=s->s2->wlength; 624656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->three_byte_header) /* 3 byte header */ 625656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 626656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp=s->s2->mac_data; 627656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp-=3; 628656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp[0]=(s->s2->wlength>>8)&(THREE_BYTE_MASK>>8); 629656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->s2->escape) pp[0]|=SEC_ESC_BIT; 630656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp[1]=s->s2->wlength&0xff; 631656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp[2]=s->s2->padding; 632656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_len+=3; 633656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 634656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 635656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 636656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp=s->s2->mac_data; 637656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp-=2; 638656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp[0]=((s->s2->wlength>>8)&(TWO_BYTE_MASK>>8))|TWO_BYTE_BIT; 639656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pp[1]=s->s2->wlength&0xff; 640656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_len+=2; 641656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 642656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->write_ptr=pp; 643656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 644656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project INC32(s->s2->write_sequence); /* expect next number */ 645656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 646656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* lets try to actually write the data */ 647656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_tot=olen; 648656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_buf=buf; 649656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 650656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_ret=len; 651656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 652656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->s2->wpend_off=0; 653656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(write_pending(s,buf,olen)); 654656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 655656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 656656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ssl2_part_read(SSL *s, unsigned long f, int i) 657656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 658656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *p; 659656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int j; 660656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 661656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i < 0) 662656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 663656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* ssl2_return_error(s); */ 664656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* for non-blocking io, 665656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * this is not necessarily fatal */ 666656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(i); 667656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 668656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 669656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 670656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num+=i; 671656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 672656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check for error. While there are recoverable errors, 673656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * this function is not called when those must be expected; 674656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * any error detected here is fatal. */ 675656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->init_num >= 3) 676656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 677656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p=(unsigned char *)s->init_buf->data; 678656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (p[0] == SSL2_MT_ERROR) 679656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 680656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=(p[1]<<8)|p[2]; 681656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project SSLerr((int)f,ssl_mt_error(j)); 682656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num -= 3; 683656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->init_num > 0) 684656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memmove(p, p+3, s->init_num); 685656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 686656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 687656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 688656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If it's not an error message, we have some error anyway -- 689656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the message was shorter than expected. This too is treated 690656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as fatal (at least if SSL_get_error is asked for its opinion). */ 691656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 692656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 693656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 694656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 695656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ssl2_do_write(SSL *s) 696656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 697656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret; 698656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 699656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ssl2_write(s,&s->init_buf->data[s->init_off],s->init_num); 700656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret == s->init_num) 701656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 702656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (s->msg_callback) 703656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->msg_callback(1, s->version, 0, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg); 704656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 705656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 706656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret < 0) 707656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(-1); 708656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_off+=ret; 709656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project s->init_num-=ret; 710656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 711656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 712656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 713656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ssl_mt_error(int n) 714656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 715656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret; 716656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 717656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch (n) 718656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 719656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL2_PE_NO_CIPHER: 720656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=SSL_R_PEER_ERROR_NO_CIPHER; 721656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 722656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL2_PE_NO_CERTIFICATE: 723656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=SSL_R_PEER_ERROR_NO_CERTIFICATE; 724656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 725656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL2_PE_BAD_CERTIFICATE: 726656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=SSL_R_PEER_ERROR_CERTIFICATE; 727656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 728656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE: 729656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE; 730656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 731656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 732656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=SSL_R_UNKNOWN_REMOTE_ERROR_TYPE; 733656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 734656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 735656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 736656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 737656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else /* !OPENSSL_NO_SSL2 */ 738656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 739656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# if PEDANTIC 740656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic void *dummy=&dummy; 741656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 742656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 743656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 744