739 lines
20 KiB
C
739 lines
20 KiB
C
/* ssl/s2_pkt.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include "ssl_locl.h"
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#ifndef OPENSSL_NO_SSL2
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#include <stdio.h>
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#include <errno.h>
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#include "cryptlib.h"
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#define USE_SOCKETS
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static int read_n(SSL *s,unsigned int n,unsigned int max,unsigned int extend);
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static int do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len);
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static int write_pending(SSL *s, const unsigned char *buf, unsigned int len);
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static int ssl_mt_error(int n);
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/* SSL 2.0 imlementation for SSL_read/SSL_peek -
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* This routine will return 0 to len bytes, decrypted etc if required.
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*/
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static int ssl2_read_internal(SSL *s, void *buf, int len, int peek)
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{
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int n;
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unsigned char mac[MAX_MAC_SIZE];
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unsigned char *p;
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int i;
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unsigned int mac_size;
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ssl2_read_again:
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if (SSL_in_init(s) && !s->in_handshake)
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{
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n=s->handshake_func(s);
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if (n < 0) return(n);
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if (n == 0)
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_SSL_HANDSHAKE_FAILURE);
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return(-1);
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}
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}
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clear_sys_error();
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s->rwstate=SSL_NOTHING;
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if (len <= 0) return(len);
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if (s->s2->ract_data_length != 0) /* read from buffer */
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{
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if (len > s->s2->ract_data_length)
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n=s->s2->ract_data_length;
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else
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n=len;
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memcpy(buf,s->s2->ract_data,(unsigned int)n);
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if (!peek)
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{
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s->s2->ract_data_length-=n;
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s->s2->ract_data+=n;
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if (s->s2->ract_data_length == 0)
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s->rstate=SSL_ST_READ_HEADER;
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}
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return(n);
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}
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/* s->s2->ract_data_length == 0
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*
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* Fill the buffer, then goto ssl2_read_again.
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*/
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if (s->rstate == SSL_ST_READ_HEADER)
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{
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if (s->first_packet)
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{
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n=read_n(s,5,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0);
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if (n <= 0) return(n); /* error or non-blocking */
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s->first_packet=0;
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p=s->packet;
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if (!((p[0] & 0x80) && (
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(p[2] == SSL2_MT_CLIENT_HELLO) ||
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(p[2] == SSL2_MT_SERVER_HELLO))))
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_NON_SSLV2_INITIAL_PACKET);
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return(-1);
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}
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}
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else
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{
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n=read_n(s,2,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0);
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if (n <= 0) return(n); /* error or non-blocking */
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}
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/* part read stuff */
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s->rstate=SSL_ST_READ_BODY;
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p=s->packet;
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/* Do header */
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/*s->s2->padding=0;*/
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s->s2->escape=0;
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s->s2->rlength=(((unsigned int)p[0])<<8)|((unsigned int)p[1]);
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if ((p[0] & TWO_BYTE_BIT)) /* Two byte header? */
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{
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s->s2->three_byte_header=0;
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s->s2->rlength&=TWO_BYTE_MASK;
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}
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else
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{
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s->s2->three_byte_header=1;
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s->s2->rlength&=THREE_BYTE_MASK;
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/* security >s2->escape */
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s->s2->escape=((p[0] & SEC_ESC_BIT))?1:0;
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}
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}
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if (s->rstate == SSL_ST_READ_BODY)
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{
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n=s->s2->rlength+2+s->s2->three_byte_header;
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if (n > (int)s->packet_length)
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{
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n-=s->packet_length;
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i=read_n(s,(unsigned int)n,(unsigned int)n,1);
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if (i <= 0) return(i); /* ERROR */
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}
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p= &(s->packet[2]);
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s->rstate=SSL_ST_READ_HEADER;
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if (s->s2->three_byte_header)
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s->s2->padding= *(p++);
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else s->s2->padding=0;
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/* Data portion */
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if (s->s2->clear_text)
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{
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mac_size = 0;
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s->s2->mac_data=p;
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s->s2->ract_data=p;
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if (s->s2->padding)
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING);
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return(-1);
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}
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}
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else
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{
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mac_size=EVP_MD_size(s->read_hash);
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OPENSSL_assert(mac_size <= MAX_MAC_SIZE);
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s->s2->mac_data=p;
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s->s2->ract_data= &p[mac_size];
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if (s->s2->padding + mac_size > s->s2->rlength)
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING);
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return(-1);
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}
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}
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s->s2->ract_data_length=s->s2->rlength;
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/* added a check for length > max_size in case
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* encryption was not turned on yet due to an error */
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if ((!s->s2->clear_text) &&
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(s->s2->rlength >= mac_size))
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{
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ssl2_enc(s,0);
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s->s2->ract_data_length-=mac_size;
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ssl2_mac(s,mac,0);
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s->s2->ract_data_length-=s->s2->padding;
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if ( (memcmp(mac,s->s2->mac_data,
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(unsigned int)mac_size) != 0) ||
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(s->s2->rlength%EVP_CIPHER_CTX_block_size(s->enc_read_ctx) != 0))
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_MAC_DECODE);
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return(-1);
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}
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}
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INC32(s->s2->read_sequence); /* expect next number */
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/* s->s2->ract_data is now available for processing */
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/* Possibly the packet that we just read had 0 actual data bytes.
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* (SSLeay/OpenSSL itself never sends such packets; see ssl2_write.)
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* In this case, returning 0 would be interpreted by the caller
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* as indicating EOF, so it's not a good idea. Instead, we just
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* continue reading; thus ssl2_read_internal may have to process
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* multiple packets before it can return.
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*
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* [Note that using select() for blocking sockets *never* guarantees
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* that the next SSL_read will not block -- the available
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* data may contain incomplete packets, and except for SSL 2,
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* renegotiation can confuse things even more.] */
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goto ssl2_read_again; /* This should really be
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* "return ssl2_read(s,buf,len)",
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* but that would allow for
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* denial-of-service attacks if a
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* C compiler is used that does not
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* recognize end-recursion. */
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}
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else
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{
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SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_STATE);
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return(-1);
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}
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}
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int ssl2_read(SSL *s, void *buf, int len)
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{
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return ssl2_read_internal(s, buf, len, 0);
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}
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int ssl2_peek(SSL *s, void *buf, int len)
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{
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return ssl2_read_internal(s, buf, len, 1);
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}
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static int read_n(SSL *s, unsigned int n, unsigned int max,
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unsigned int extend)
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{
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int i,off,newb;
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/* if there is stuff still in the buffer from a previous read,
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* and there is more than we want, take some. */
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if (s->s2->rbuf_left >= (int)n)
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{
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if (extend)
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s->packet_length+=n;
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else
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{
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s->packet= &(s->s2->rbuf[s->s2->rbuf_offs]);
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s->packet_length=n;
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}
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s->s2->rbuf_left-=n;
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s->s2->rbuf_offs+=n;
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return(n);
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}
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if (!s->read_ahead) max=n;
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if (max > (unsigned int)(SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2))
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max=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2;
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|
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/* Else we want more than we have.
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* First, if there is some left or we want to extend */
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off=0;
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if ((s->s2->rbuf_left != 0) || ((s->packet_length != 0) && extend))
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{
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newb=s->s2->rbuf_left;
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if (extend)
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{
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off=s->packet_length;
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if (s->packet != s->s2->rbuf)
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memcpy(s->s2->rbuf,s->packet,
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(unsigned int)newb+off);
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}
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else if (s->s2->rbuf_offs != 0)
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{
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memcpy(s->s2->rbuf,&(s->s2->rbuf[s->s2->rbuf_offs]),
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(unsigned int)newb);
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s->s2->rbuf_offs=0;
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}
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s->s2->rbuf_left=0;
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}
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else
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newb=0;
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/* off is the offset to start writing too.
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* r->s2->rbuf_offs is the 'unread data', now 0.
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* newb is the number of new bytes so far
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*/
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s->packet=s->s2->rbuf;
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while (newb < (int)n)
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{
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clear_sys_error();
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if (s->rbio != NULL)
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{
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s->rwstate=SSL_READING;
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i=BIO_read(s->rbio,(char *)&(s->s2->rbuf[off+newb]),
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max-newb);
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}
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else
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{
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SSLerr(SSL_F_READ_N,SSL_R_READ_BIO_NOT_SET);
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i= -1;
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}
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#ifdef PKT_DEBUG
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if (s->debug & 0x01) sleep(1);
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#endif
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if (i <= 0)
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{
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s->s2->rbuf_left+=newb;
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return(i);
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}
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newb+=i;
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}
|
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|
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/* record unread data */
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if (newb > (int)n)
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{
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s->s2->rbuf_offs=n+off;
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s->s2->rbuf_left=newb-n;
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}
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else
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{
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s->s2->rbuf_offs=0;
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s->s2->rbuf_left=0;
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}
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if (extend)
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s->packet_length+=n;
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else
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s->packet_length=n;
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s->rwstate=SSL_NOTHING;
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return(n);
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}
|
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|
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int ssl2_write(SSL *s, const void *_buf, int len)
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{
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const unsigned char *buf=_buf;
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unsigned int n,tot;
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int i;
|
|
|
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if (SSL_in_init(s) && !s->in_handshake)
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{
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i=s->handshake_func(s);
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if (i < 0) return(i);
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if (i == 0)
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{
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SSLerr(SSL_F_SSL2_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
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return(-1);
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}
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}
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|
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if (s->error)
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{
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ssl2_write_error(s);
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if (s->error)
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return(-1);
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}
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|
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clear_sys_error();
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s->rwstate=SSL_NOTHING;
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if (len <= 0) return(len);
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|
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tot=s->s2->wnum;
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s->s2->wnum=0;
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|
|
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n=(len-tot);
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for (;;)
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{
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i=do_ssl_write(s,&(buf[tot]),n);
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if (i <= 0)
|
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{
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s->s2->wnum=tot;
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return(i);
|
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}
|
|
if ((i == (int)n) ||
|
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(s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))
|
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{
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return(tot+i);
|
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}
|
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|
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n-=i;
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tot+=i;
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}
|
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}
|
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|
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static int write_pending(SSL *s, const unsigned char *buf, unsigned int len)
|
|
{
|
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int i;
|
|
|
|
/* s->s2->wpend_len != 0 MUST be true. */
|
|
|
|
/* check that they have given us the same buffer to
|
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* write */
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if ((s->s2->wpend_tot > (int)len) ||
|
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((s->s2->wpend_buf != buf) &&
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!(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER)))
|
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{
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SSLerr(SSL_F_WRITE_PENDING,SSL_R_BAD_WRITE_RETRY);
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return(-1);
|
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}
|
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|
|
for (;;)
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{
|
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clear_sys_error();
|
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if (s->wbio != NULL)
|
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{
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s->rwstate=SSL_WRITING;
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i=BIO_write(s->wbio,
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(char *)&(s->s2->write_ptr[s->s2->wpend_off]),
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(unsigned int)s->s2->wpend_len);
|
|
}
|
|
else
|
|
{
|
|
SSLerr(SSL_F_WRITE_PENDING,SSL_R_WRITE_BIO_NOT_SET);
|
|
i= -1;
|
|
}
|
|
#ifdef PKT_DEBUG
|
|
if (s->debug & 0x01) sleep(1);
|
|
#endif
|
|
if (i == s->s2->wpend_len)
|
|
{
|
|
s->s2->wpend_len=0;
|
|
s->rwstate=SSL_NOTHING;
|
|
return(s->s2->wpend_ret);
|
|
}
|
|
else if (i <= 0)
|
|
return(i);
|
|
s->s2->wpend_off+=i;
|
|
s->s2->wpend_len-=i;
|
|
}
|
|
}
|
|
|
|
static int do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len)
|
|
{
|
|
unsigned int j,k,olen,p,mac_size,bs;
|
|
register unsigned char *pp;
|
|
|
|
olen=len;
|
|
|
|
/* first check if there is data from an encryption waiting to
|
|
* be sent - it must be sent because the other end is waiting.
|
|
* This will happen with non-blocking IO. We print it and then
|
|
* return.
|
|
*/
|
|
if (s->s2->wpend_len != 0) return(write_pending(s,buf,len));
|
|
|
|
/* set mac_size to mac size */
|
|
if (s->s2->clear_text)
|
|
mac_size=0;
|
|
else
|
|
mac_size=EVP_MD_size(s->write_hash);
|
|
|
|
/* lets set the pad p */
|
|
if (s->s2->clear_text)
|
|
{
|
|
if (len > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
|
|
len=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
|
|
p=0;
|
|
s->s2->three_byte_header=0;
|
|
/* len=len; */
|
|
}
|
|
else
|
|
{
|
|
bs=EVP_CIPHER_CTX_block_size(s->enc_read_ctx);
|
|
j=len+mac_size;
|
|
/* Two-byte headers allow for a larger record length than
|
|
* three-byte headers, but we can't use them if we need
|
|
* padding or if we have to set the escape bit. */
|
|
if ((j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) &&
|
|
(!s->s2->escape))
|
|
{
|
|
if (j > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
|
|
j=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
|
|
/* set k to the max number of bytes with 2
|
|
* byte header */
|
|
k=j-(j%bs);
|
|
/* how many data bytes? */
|
|
len=k-mac_size;
|
|
s->s2->three_byte_header=0;
|
|
p=0;
|
|
}
|
|
else if ((bs <= 1) && (!s->s2->escape))
|
|
{
|
|
/* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, thus
|
|
* j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER */
|
|
s->s2->three_byte_header=0;
|
|
p=0;
|
|
}
|
|
else /* we may have to use a 3 byte header */
|
|
{
|
|
/* If s->s2->escape is not set, then
|
|
* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, and thus
|
|
* j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER. */
|
|
p=(j%bs);
|
|
p=(p == 0)?0:(bs-p);
|
|
if (s->s2->escape)
|
|
{
|
|
s->s2->three_byte_header=1;
|
|
if (j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
|
|
j=SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER;
|
|
}
|
|
else
|
|
s->s2->three_byte_header=(p == 0)?0:1;
|
|
}
|
|
}
|
|
|
|
/* Now
|
|
* j <= SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
|
|
* holds, and if s->s2->three_byte_header is set, then even
|
|
* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER.
|
|
*/
|
|
|
|
/* mac_size is the number of MAC bytes
|
|
* len is the number of data bytes we are going to send
|
|
* p is the number of padding bytes
|
|
* (if it is a two-byte header, then p == 0) */
|
|
|
|
s->s2->wlength=len;
|
|
s->s2->padding=p;
|
|
s->s2->mac_data= &(s->s2->wbuf[3]);
|
|
s->s2->wact_data= &(s->s2->wbuf[3+mac_size]);
|
|
/* we copy the data into s->s2->wbuf */
|
|
memcpy(s->s2->wact_data,buf,len);
|
|
if (p)
|
|
memset(&(s->s2->wact_data[len]),0,p); /* arbitrary padding */
|
|
|
|
if (!s->s2->clear_text)
|
|
{
|
|
s->s2->wact_data_length=len+p;
|
|
ssl2_mac(s,s->s2->mac_data,1);
|
|
s->s2->wlength+=p+mac_size;
|
|
ssl2_enc(s,1);
|
|
}
|
|
|
|
/* package up the header */
|
|
s->s2->wpend_len=s->s2->wlength;
|
|
if (s->s2->three_byte_header) /* 3 byte header */
|
|
{
|
|
pp=s->s2->mac_data;
|
|
pp-=3;
|
|
pp[0]=(s->s2->wlength>>8)&(THREE_BYTE_MASK>>8);
|
|
if (s->s2->escape) pp[0]|=SEC_ESC_BIT;
|
|
pp[1]=s->s2->wlength&0xff;
|
|
pp[2]=s->s2->padding;
|
|
s->s2->wpend_len+=3;
|
|
}
|
|
else
|
|
{
|
|
pp=s->s2->mac_data;
|
|
pp-=2;
|
|
pp[0]=((s->s2->wlength>>8)&(TWO_BYTE_MASK>>8))|TWO_BYTE_BIT;
|
|
pp[1]=s->s2->wlength&0xff;
|
|
s->s2->wpend_len+=2;
|
|
}
|
|
s->s2->write_ptr=pp;
|
|
|
|
INC32(s->s2->write_sequence); /* expect next number */
|
|
|
|
/* lets try to actually write the data */
|
|
s->s2->wpend_tot=olen;
|
|
s->s2->wpend_buf=buf;
|
|
|
|
s->s2->wpend_ret=len;
|
|
|
|
s->s2->wpend_off=0;
|
|
return(write_pending(s,buf,olen));
|
|
}
|
|
|
|
int ssl2_part_read(SSL *s, unsigned long f, int i)
|
|
{
|
|
unsigned char *p;
|
|
int j;
|
|
|
|
if (i < 0)
|
|
{
|
|
/* ssl2_return_error(s); */
|
|
/* for non-blocking io,
|
|
* this is not necessarily fatal */
|
|
return(i);
|
|
}
|
|
else
|
|
{
|
|
s->init_num+=i;
|
|
|
|
/* Check for error. While there are recoverable errors,
|
|
* this function is not called when those must be expected;
|
|
* any error detected here is fatal. */
|
|
if (s->init_num >= 3)
|
|
{
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (p[0] == SSL2_MT_ERROR)
|
|
{
|
|
j=(p[1]<<8)|p[2];
|
|
SSLerr((int)f,ssl_mt_error(j));
|
|
s->init_num -= 3;
|
|
if (s->init_num > 0)
|
|
memmove(p, p+3, s->init_num);
|
|
}
|
|
}
|
|
|
|
/* If it's not an error message, we have some error anyway --
|
|
* the message was shorter than expected. This too is treated
|
|
* as fatal (at least if SSL_get_error is asked for its opinion). */
|
|
return(0);
|
|
}
|
|
}
|
|
|
|
int ssl2_do_write(SSL *s)
|
|
{
|
|
int ret;
|
|
|
|
ret=ssl2_write(s,&s->init_buf->data[s->init_off],s->init_num);
|
|
if (ret == s->init_num)
|
|
{
|
|
if (s->msg_callback)
|
|
s->msg_callback(1, s->version, 0, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
|
|
return(1);
|
|
}
|
|
if (ret < 0)
|
|
return(-1);
|
|
s->init_off+=ret;
|
|
s->init_num-=ret;
|
|
return(0);
|
|
}
|
|
|
|
static int ssl_mt_error(int n)
|
|
{
|
|
int ret;
|
|
|
|
switch (n)
|
|
{
|
|
case SSL2_PE_NO_CIPHER:
|
|
ret=SSL_R_PEER_ERROR_NO_CIPHER;
|
|
break;
|
|
case SSL2_PE_NO_CERTIFICATE:
|
|
ret=SSL_R_PEER_ERROR_NO_CERTIFICATE;
|
|
break;
|
|
case SSL2_PE_BAD_CERTIFICATE:
|
|
ret=SSL_R_PEER_ERROR_CERTIFICATE;
|
|
break;
|
|
case SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE:
|
|
ret=SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE;
|
|
break;
|
|
default:
|
|
ret=SSL_R_UNKNOWN_REMOTE_ERROR_TYPE;
|
|
break;
|
|
}
|
|
return(ret);
|
|
}
|
|
#else /* !OPENSSL_NO_SSL2 */
|
|
|
|
# if PEDANTIC
|
|
static void *dummy=&dummy;
|
|
# endif
|
|
|
|
#endif
|