[thirdparty/openssl.git] / ssl / s3_both.c

/* ssl/s3_both.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECC cipher suite support in OpenSSL originally developed by 
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#include <limits.h>
#include <string.h>
#include <stdio.h>
#include "ssl_locl.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>

/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
int ssl3_do_write(SSL *s, int type)
	{
	int ret;

	ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
	                     s->init_num);
	if (ret < 0) return(-1);
	if (type == SSL3_RT_HANDSHAKE)
		/* should not be done for 'Hello Request's, but in that case
		 * we'll ignore the result anyway */
		ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
	
	if (ret == s->init_num)
		{
		if (s->msg_callback)
			s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
		return(1);
		}
	s->init_off+=ret;
	s->init_num-=ret;
	return(0);
	}

int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
	{
	unsigned char *p,*d;
	int i;
	unsigned long l;

	if (s->state == a)
		{
		d=(unsigned char *)s->init_buf->data;
		p= &(d[4]);

		i=s->method->ssl3_enc->final_finish_mac(s,
			&(s->s3->finish_dgst1),
			&(s->s3->finish_dgst2),
			sender,slen,s->s3->tmp.finish_md);
		s->s3->tmp.finish_md_len = i;
		memcpy(p, s->s3->tmp.finish_md, i);
		p+=i;
		l=i;

#ifdef OPENSSL_SYS_WIN16
		/* MSVC 1.5 does not clear the top bytes of the word unless
		 * I do this.
		 */
		l&=0xffff;
#endif

		*(d++)=SSL3_MT_FINISHED;
		l2n3(l,d);
		s->init_num=(int)l+4;
		s->init_off=0;

		s->state=b;
		}

	/* SSL3_ST_SEND_xxxxxx_HELLO_B */
	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
	}

int ssl3_get_finished(SSL *s, int a, int b)
	{
	int al,i,ok;
	long n;
	unsigned char *p;

	/* the mac has already been generated when we received the
	 * change cipher spec message and is in s->s3->tmp.peer_finish_md
	 */ 

	n=ssl3_get_message(s,
		a,
		b,
		SSL3_MT_FINISHED,
		64, /* should actually be 36+4 :-) */
		&ok);

	if (!ok) return((int)n);

	/* If this occurs, we have missed a message */
	if (!s->s3->change_cipher_spec)
		{
		al=SSL_AD_UNEXPECTED_MESSAGE;
		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
		goto f_err;
		}
	s->s3->change_cipher_spec=0;

	p = (unsigned char *)s->init_msg;
	i = s->s3->tmp.peer_finish_md_len;

	if (i != n)
		{
		al=SSL_AD_DECODE_ERROR;
		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
		goto f_err;
		}

	if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
		{
		al=SSL_AD_DECRYPT_ERROR;
		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
		goto f_err;
		}

	return(1);
f_err:
	ssl3_send_alert(s,SSL3_AL_FATAL,al);
	return(0);
	}

/* for these 2 messages, we need to
 * ssl->enc_read_ctx			re-init
 * ssl->s3->read_sequence		zero
 * ssl->s3->read_mac_secret		re-init
 * ssl->session->read_sym_enc		assign
 * ssl->session->read_compression	assign
 * ssl->session->read_hash		assign
 */
int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
	{ 
	unsigned char *p;

	if (s->state == a)
		{
		p=(unsigned char *)s->init_buf->data;
		*p=SSL3_MT_CCS;
		s->init_num=1;
		s->init_off=0;

		s->state=b;
		}

	/* SSL3_ST_CW_CHANGE_B */
	return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
	}

unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
	{
	unsigned char *p;
	int n,i;
	unsigned long l=7;
	BUF_MEM *buf;
	X509_STORE_CTX xs_ctx;
	X509_OBJECT obj;

	/* TLSv1 sends a chain with nothing in it, instead of an alert */
	buf=s->init_buf;
	if (!BUF_MEM_grow_clean(buf,10))
		{
		SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
		return(0);
		}
	if (x != NULL)
		{
		if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
			{
			SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
			return(0);
			}

		for (;;)
			{
			n=i2d_X509(x,NULL);
			if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
				{
				SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
				return(0);
				}
			p=(unsigned char *)&(buf->data[l]);
			l2n3(n,p);
			i2d_X509(x,&p);
			l+=n+3;
			if (X509_NAME_cmp(X509_get_subject_name(x),
				X509_get_issuer_name(x)) == 0) break;

			i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
				X509_get_issuer_name(x),&obj);
			if (i <= 0) break;
			x=obj.data.x509;
			/* Count is one too high since the X509_STORE_get uped the
			 * ref count */
			X509_free(x);
			}

		X509_STORE_CTX_cleanup(&xs_ctx);
		}

	/* Thawte special :-) */
	if (s->ctx->extra_certs != NULL)
	for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
		{
		x=sk_X509_value(s->ctx->extra_certs,i);
		n=i2d_X509(x,NULL);
		if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
			{
			SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
			return(0);
			}
		p=(unsigned char *)&(buf->data[l]);
		l2n3(n,p);
		i2d_X509(x,&p);
		l+=n+3;
		}

	l-=7;
	p=(unsigned char *)&(buf->data[4]);
	l2n3(l,p);
	l+=3;
	p=(unsigned char *)&(buf->data[0]);
	*(p++)=SSL3_MT_CERTIFICATE;
	l2n3(l,p);
	l+=4;
	return(l);
	}

/* Obtain handshake message of message type 'mt' (any if mt == -1),
 * maximum acceptable body length 'max'.
 * The first four bytes (msg_type and length) are read in state 'st1',
 * the body is read in state 'stn'.
 */
long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
	{
	unsigned char *p;
	unsigned long l;
	long n;
	int i,al;

	if (s->s3->tmp.reuse_message)
		{
		s->s3->tmp.reuse_message=0;
		if ((mt >= 0) && (s->s3->tmp.message_type != mt))
			{
			al=SSL_AD_UNEXPECTED_MESSAGE;
			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
			goto f_err;
			}
		*ok=1;
		s->init_msg = s->init_buf->data + 4;
		s->init_num = (int)s->s3->tmp.message_size;
		return s->init_num;
		}

	p=(unsigned char *)s->init_buf->data;

	if (s->state == st1) /* s->init_num < 4 */
		{
		int skip_message;

		do
			{
			while (s->init_num < 4)
				{
				i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
					4 - s->init_num, 0);
				if (i <= 0)
					{
					s->rwstate=SSL_READING;
					*ok = 0;
					return i;
					}
				s->init_num+=i;
				}
			
			skip_message = 0;
			if (!s->server)
				if (p[0] == SSL3_MT_HELLO_REQUEST)
					/* The server may always send 'Hello Request' messages --
					 * we are doing a handshake anyway now, so ignore them
					 * if their format is correct. Does not count for
					 * 'Finished' MAC. */
					if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
						{
						s->init_num = 0;
						skip_message = 1;

						if (s->msg_callback)
							s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
						}
			}
		while (skip_message);

		/* s->init_num == 4 */

		if ((mt >= 0) && (*p != mt))
			{
			al=SSL_AD_UNEXPECTED_MESSAGE;
			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
			goto f_err;
			}
		if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
					(st1 == SSL3_ST_SR_CERT_A) &&
					(stn == SSL3_ST_SR_CERT_B))
			{
			/* At this point we have got an MS SGC second client
			 * hello (maybe we should always allow the client to
			 * start a new handshake?). We need to restart the mac.
			 * Don't increment {num,total}_renegotiations because
			 * we have not completed the handshake. */
			ssl3_init_finished_mac(s);
			}

		s->s3->tmp.message_type= *(p++);

		n2l3(p,l);
		if (l > (unsigned long)max)
			{
			al=SSL_AD_ILLEGAL_PARAMETER;
			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
			goto f_err;
			}
		if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */
			{
			al=SSL_AD_ILLEGAL_PARAMETER;
			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
			goto f_err;
			}
		if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4))
			{
			SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
			goto err;
			}
		s->s3->tmp.message_size=l;
		s->state=stn;

		s->init_msg = s->init_buf->data + 4;
		s->init_num = 0;
		}

	/* next state (stn) */
	p = s->init_msg;
	n = s->s3->tmp.message_size - s->init_num;
	while (n > 0)
		{
		i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
		if (i <= 0)
			{
			s->rwstate=SSL_READING;
			*ok = 0;
			return i;
			}
		s->init_num += i;
		n -= i;
		}
	ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
	if (s->msg_callback)
		s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
	*ok=1;
	return s->init_num;
f_err:
	ssl3_send_alert(s,SSL3_AL_FATAL,al);
err:
	*ok=0;
	return(-1);
	}

int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
	{
	EVP_PKEY *pk;
	int ret= -1,i,j;

	if (pkey == NULL)
		pk=X509_get_pubkey(x);
	else
		pk=pkey;
	if (pk == NULL) goto err;

	i=pk->type;
	if (i == EVP_PKEY_RSA)
		{
		ret=SSL_PKEY_RSA_ENC;
		if (x != NULL)
			{
			j=X509_get_ext_count(x);
			/* check to see if this is a signing only certificate */
			/* EAY EAY EAY EAY */
			}
		}
	else if (i == EVP_PKEY_DSA)
		{
		ret=SSL_PKEY_DSA_SIGN;
		}
	else if (i == EVP_PKEY_DH)
		{
		/* if we just have a key, we needs to be guess */

		if (x == NULL)
			ret=SSL_PKEY_DH_DSA;
		else
			{
			j=X509_get_signature_type(x);
			if (j == EVP_PKEY_RSA)
				ret=SSL_PKEY_DH_RSA;
			else if (j== EVP_PKEY_DSA)
				ret=SSL_PKEY_DH_DSA;
			else ret= -1;
			}
		}
#ifndef OPENSSL_NO_EC
	else if (i == EVP_PKEY_EC)
		{
		ret = SSL_PKEY_ECC;
		}
#endif
	else
		ret= -1;

err:
	if(!pkey) EVP_PKEY_free(pk);
	return(ret);
	}

int ssl_verify_alarm_type(long type)
	{
	int al;

	switch(type)
		{
	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
	case X509_V_ERR_UNABLE_TO_GET_CRL:
	case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
		al=SSL_AD_UNKNOWN_CA;
		break;
	case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
	case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
	case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
	case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
	case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
	case X509_V_ERR_CERT_NOT_YET_VALID:
	case X509_V_ERR_CRL_NOT_YET_VALID:
	case X509_V_ERR_CERT_UNTRUSTED:
	case X509_V_ERR_CERT_REJECTED:
		al=SSL_AD_BAD_CERTIFICATE;
		break;
	case X509_V_ERR_CERT_SIGNATURE_FAILURE:
	case X509_V_ERR_CRL_SIGNATURE_FAILURE:
		al=SSL_AD_DECRYPT_ERROR;
		break;
	case X509_V_ERR_CERT_HAS_EXPIRED:
	case X509_V_ERR_CRL_HAS_EXPIRED:
		al=SSL_AD_CERTIFICATE_EXPIRED;
		break;
	case X509_V_ERR_CERT_REVOKED:
		al=SSL_AD_CERTIFICATE_REVOKED;
		break;
	case X509_V_ERR_OUT_OF_MEM:
		al=SSL_AD_INTERNAL_ERROR;
		break;
	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
	case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
	case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
	case X509_V_ERR_CERT_CHAIN_TOO_LONG:
	case X509_V_ERR_PATH_LENGTH_EXCEEDED:
	case X509_V_ERR_INVALID_CA:
		al=SSL_AD_UNKNOWN_CA;
		break;
	case X509_V_ERR_APPLICATION_VERIFICATION:
		al=SSL_AD_HANDSHAKE_FAILURE;
		break;
	case X509_V_ERR_INVALID_PURPOSE:
		al=SSL_AD_UNSUPPORTED_CERTIFICATE;
		break;
	default:
		al=SSL_AD_CERTIFICATE_UNKNOWN;
		break;
		}
	return(al);
	}

int ssl3_setup_buffers(SSL *s)
	{
	unsigned char *p;
	unsigned int extra;
	size_t len;

	if (s->s3->rbuf.buf == NULL)
		{
		if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
			extra=SSL3_RT_MAX_EXTRA;
		else
			extra=0;
		len = SSL3_RT_MAX_PACKET_SIZE + extra;
		if ((p=OPENSSL_malloc(len)) == NULL)
			goto err;
		s->s3->rbuf.buf = p;
		s->s3->rbuf.len = len;
		}

	if (s->s3->wbuf.buf == NULL)
		{
		len = SSL3_RT_MAX_PACKET_SIZE;
		len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
		if ((p=OPENSSL_malloc(len)) == NULL)
			goto err;
		s->s3->wbuf.buf = p;
		s->s3->wbuf.len = len;
		}
	s->packet= &(s->s3->rbuf.buf[0]);
	return(1);
err:
	SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
	return(0);
	}
Commit	Line	Data
d02b48c6	1	/* ssl/s3_both.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
3813046d	58	/* ====================================================================
82b0bf0b	59	* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
3813046d BM	60	*
	61	* Redistribution and use in source and binary forms, with or without
	62	* modification, are permitted provided that the following conditions
	63	* are met:
	64	*
	65	* 1. Redistributions of source code must retain the above copyright
	66	* notice, this list of conditions and the following disclaimer.
	67	*
	68	* 2. Redistributions in binary form must reproduce the above copyright
	69	* notice, this list of conditions and the following disclaimer in
	70	* the documentation and/or other materials provided with the
	71	* distribution.
	72	*
	73	* 3. All advertising materials mentioning features or use of this
	74	* software must display the following acknowledgment:
	75	* "This product includes software developed by the OpenSSL Project
	76	* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
	77	*
	78	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	79	* endorse or promote products derived from this software without
	80	* prior written permission. For written permission, please contact
	81	* openssl-core@openssl.org.
	82	*
	83	* 5. Products derived from this software may not be called "OpenSSL"
	84	* nor may "OpenSSL" appear in their names without prior written
	85	* permission of the OpenSSL Project.
	86	*
	87	* 6. Redistributions of any form whatsoever must retain the following
	88	* acknowledgment:
	89	* "This product includes software developed by the OpenSSL Project
	90	* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
	91	*
	92	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	93	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	94	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	95	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	96	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	97	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	98	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	99	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	100	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	101	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	102	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	103	* OF THE POSSIBILITY OF SUCH DAMAGE.
	104	* ====================================================================
	105	*
	106	* This product includes cryptographic software written by Eric Young
	107	* (eay@cryptsoft.com). This product includes software written by Tim
	108	* Hudson (tjh@cryptsoft.com).
	109	*
	110	*/
ea262260 BM	111	/* ====================================================================
	112	* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
	113	* ECC cipher suite support in OpenSSL originally developed by
	114	* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
	115	*/
d02b48c6	116
48948d53	117	#include <limits.h>
f2d9a32c	118	#include <string.h>
d02b48c6	119	#include <stdio.h>
7b63c0fa	120	#include "ssl_locl.h"
ec577822 BM	121	#include <openssl/buffer.h>
	122	#include <openssl/rand.h>
	123	#include <openssl/objects.h>
	124	#include <openssl/evp.h>
	125	#include <openssl/x509.h>
d02b48c6	126
a661b653	127	/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
e7ecc7d4 BM	128	int ssl3_do_write(SSL *s, int type)
	129	{
	130	int ret;
	131
	132	ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
	133	s->init_num);
	134	if (ret < 0) return(-1);
	135	if (type == SSL3_RT_HANDSHAKE)
	136	/* should not be done for 'Hello Request's, but in that case
	137	* we'll ignore the result anyway */
72b60351	138	ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
e7ecc7d4 BM	139
e7ecc7d4 BM	140	if (ret == s->init_num)
a661b653 BM	141	{
a661b653 BM	142	if (s->msg_callback)
cf3a5ceb	143	s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
e7ecc7d4	144	return(1);
a661b653	145	}
e7ecc7d4 BM	146	s->init_off+=ret;
	147	s->init_num-=ret;
	148	return(0);
	149	}
	150
c44f7540	151	int ssl3_send_finished(SSL s, int a, int b, const char sender, int slen)
d02b48c6 RE	152	{
	153	unsigned char p,d;
	154	int i;
	155	unsigned long l;
	156
	157	if (s->state == a)
	158	{
	159	d=(unsigned char *)s->init_buf->data;
	160	p= &(d[4]);
	161
58964a49 RE	162	i=s->method->ssl3_enc->final_finish_mac(s,
	163	&(s->s3->finish_dgst1),
	164	&(s->s3->finish_dgst2),
9fb617e2 BM	165	sender,slen,s->s3->tmp.finish_md);
	166	s->s3->tmp.finish_md_len = i;
	167	memcpy(p, s->s3->tmp.finish_md, i);
d02b48c6 RE	168	p+=i;
d02b48c6 RE	169	l=i;
d02b48c6	170
bc36ee62	171	#ifdef OPENSSL_SYS_WIN16
dfeab068 RE	172	/* MSVC 1.5 does not clear the top bytes of the word unless
	173	* I do this.
	174	*/
	175	l&=0xffff;
	176	#endif
	177
d02b48c6 RE	178	*(d++)=SSL3_MT_FINISHED;
	179	l2n3(l,d);
	180	s->init_num=(int)l+4;
	181	s->init_off=0;
	182
	183	s->state=b;
	184	}
	185
	186	/* SSL3_ST_SEND_xxxxxx_HELLO_B */
	187	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
	188	}
	189
6b691a5c	190	int ssl3_get_finished(SSL *s, int a, int b)
d02b48c6	191	{
58964a49	192	int al,i,ok;
d02b48c6 RE	193	long n;
	194	unsigned char *p;
	195
	196	/* the mac has already been generated when we received the
9fb617e2	197	* change cipher spec message and is in s->s3->tmp.peer_finish_md
d02b48c6 RE	198	*/
	199
	200	n=ssl3_get_message(s,
	201	a,
	202	b,
	203	SSL3_MT_FINISHED,
	204	64, /* should actually be 36+4 :-) */
	205	&ok);
	206
	207	if (!ok) return((int)n);
	208
b35e9050	209	/* If this occurs, we have missed a message */
d02b48c6 RE	210	if (!s->s3->change_cipher_spec)
d02b48c6 RE	211	{
58964a49	212	al=SSL_AD_UNEXPECTED_MESSAGE;
d02b48c6 RE	213	SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
	214	goto f_err;
	215	}
	216	s->s3->change_cipher_spec=0;
	217
48948d53	218	p = (unsigned char *)s->init_msg;
9fb617e2	219	i = s->s3->tmp.peer_finish_md_len;
d02b48c6	220
58964a49	221	if (i != n)
d02b48c6	222	{
58964a49	223	al=SSL_AD_DECODE_ERROR;
d02b48c6 RE	224	SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
	225	goto f_err;
	226	}
	227
9fb617e2	228	if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
d02b48c6	229	{
58964a49	230	al=SSL_AD_DECRYPT_ERROR;
d02b48c6 RE	231	SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
	232	goto f_err;
	233	}
	234
	235	return(1);
	236	f_err:
	237	ssl3_send_alert(s,SSL3_AL_FATAL,al);
	238	return(0);
	239	}
	240
	241	/* for these 2 messages, we need to
	242	* ssl->enc_read_ctx re-init
	243	* ssl->s3->read_sequence zero
	244	* ssl->s3->read_mac_secret re-init
	245	* ssl->session->read_sym_enc assign
	246	* ssl->session->read_compression assign
	247	* ssl->session->read_hash assign
	248	*/
6b691a5c	249	int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
d02b48c6 RE	250	{
	251	unsigned char *p;
	252
	253	if (s->state == a)
	254	{
	255	p=(unsigned char *)s->init_buf->data;
	256	*p=SSL3_MT_CCS;
	257	s->init_num=1;
	258	s->init_off=0;
	259
	260	s->state=b;
	261	}
	262
	263	/* SSL3_ST_CW_CHANGE_B */
	264	return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
	265	}
	266
6b691a5c	267	unsigned long ssl3_output_cert_chain(SSL s, X509 x)
d02b48c6 RE	268	{
	269	unsigned char *p;
	270	int n,i;
	271	unsigned long l=7;
	272	BUF_MEM *buf;
	273	X509_STORE_CTX xs_ctx;
	274	X509_OBJECT obj;
	275
58964a49	276	/* TLSv1 sends a chain with nothing in it, instead of an alert */
d02b48c6	277	buf=s->init_buf;
54a656ef	278	if (!BUF_MEM_grow_clean(buf,10))
d02b48c6	279	{
58964a49 RE	280	SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
	281	return(0);
	282	}
	283	if (x != NULL)
	284	{
79aa04ef GT	285	if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
	286	{
	287	SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
	288	return(0);
	289	}
58964a49 RE	290
58964a49 RE	291	for (;;)
d02b48c6	292	{
58964a49	293	n=i2d_X509(x,NULL);
54a656ef	294	if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
58964a49 RE	295	{
	296	SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
	297	return(0);
	298	}
	299	p=(unsigned char *)&(buf->data[l]);
	300	l2n3(n,p);
	301	i2d_X509(x,&p);
	302	l+=n+3;
	303	if (X509_NAME_cmp(X509_get_subject_name(x),
	304	X509_get_issuer_name(x)) == 0) break;
	305
	306	i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
	307	X509_get_issuer_name(x),&obj);
	308	if (i <= 0) break;
	309	x=obj.data.x509;
	310	/* Count is one too high since the X509_STORE_get uped the
	311	* ref count */
	312	X509_free(x);
d02b48c6	313	}
d02b48c6	314
58964a49 RE	315	X509_STORE_CTX_cleanup(&xs_ctx);
58964a49 RE	316	}
d02b48c6	317
651d0aff	318	/* Thawte special :-) */
dfeab068	319	if (s->ctx->extra_certs != NULL)
f73e07cf	320	for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
dfeab068	321	{
f73e07cf	322	x=sk_X509_value(s->ctx->extra_certs,i);
dfeab068	323	n=i2d_X509(x,NULL);
54a656ef	324	if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
dfeab068 RE	325	{
	326	SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
	327	return(0);
	328	}
	329	p=(unsigned char *)&(buf->data[l]);
	330	l2n3(n,p);
	331	i2d_X509(x,&p);
	332	l+=n+3;
	333	}
	334
d02b48c6 RE	335	l-=7;
	336	p=(unsigned char *)&(buf->data[4]);
	337	l2n3(l,p);
	338	l+=3;
	339	p=(unsigned char *)&(buf->data[0]);
	340	*(p++)=SSL3_MT_CERTIFICATE;
	341	l2n3(l,p);
	342	l+=4;
	343	return(l);
	344	}
	345
52732b38 BM	346	/* Obtain handshake message of message type 'mt' (any if mt == -1),
	347	* maximum acceptable body length 'max'.
	348	* The first four bytes (msg_type and length) are read in state 'st1',
	349	* the body is read in state 'stn'.
	350	*/
6b691a5c	351	long ssl3_get_message(SSL s, int st1, int stn, int mt, long max, int ok)
d02b48c6 RE	352	{
	353	unsigned char *p;
	354	unsigned long l;
	355	long n;
	356	int i,al;
	357
	358	if (s->s3->tmp.reuse_message)
	359	{
	360	s->s3->tmp.reuse_message=0;
	361	if ((mt >= 0) && (s->s3->tmp.message_type != mt))
	362	{
58964a49	363	al=SSL_AD_UNEXPECTED_MESSAGE;
d02b48c6 RE	364	SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
	365	goto f_err;
	366	}
	367	*ok=1;
48948d53	368	s->init_msg = s->init_buf->data + 4;
8f71fb8d BM	369	s->init_num = (int)s->s3->tmp.message_size;
8f71fb8d BM	370	return s->init_num;
d02b48c6 RE	371	}
	372
	373	p=(unsigned char *)s->init_buf->data;
	374
b35e9050	375	if (s->state == st1) /* s->init_num < 4 */
d02b48c6	376	{
45206340 BM	377	int skip_message;
	378
	379	do
d02b48c6	380	{
45206340	381	while (s->init_num < 4)
b35e9050	382	{
45206340	383	i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
5a4fbc69	384	4 - s->init_num, 0);
45206340 BM	385	if (i <= 0)
	386	{
	387	s->rwstate=SSL_READING;
	388	*ok = 0;
	389	return i;
	390	}
	391	s->init_num+=i;
b35e9050	392	}
45206340 BM	393
	394	skip_message = 0;
	395	if (!s->server)
	396	if (p[0] == SSL3_MT_HELLO_REQUEST)
	397	/* The server may always send 'Hello Request' messages --
	398	* we are doing a handshake anyway now, so ignore them
745c70e5 BM	399	* if their format is correct. Does not count for
745c70e5 BM	400	* 'Finished' MAC. */
45206340	401	if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
3b0b5aba BM	402	{
3b0b5aba BM	403	s->init_num = 0;
45206340	404	skip_message = 1;
a661b653 BM	405
	406	if (s->msg_callback)
	407	s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
3b0b5aba	408	}
d02b48c6	409	}
45206340	410	while (skip_message);
d02b48c6	411
745c70e5 BM	412	/* s->init_num == 4 */
745c70e5 BM	413
d02b48c6 RE	414	if ((mt >= 0) && (*p != mt))
d02b48c6 RE	415	{
58964a49	416	al=SSL_AD_UNEXPECTED_MESSAGE;
d02b48c6 RE	417	SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
	418	goto f_err;
	419	}
a2a01589	420	if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
3d14b9d0 DSH	421	(st1 == SSL3_ST_SR_CERT_A) &&
	422	(stn == SSL3_ST_SR_CERT_B))
	423	{
	424	/* At this point we have got an MS SGC second client
745c70e5 BM	425	* hello (maybe we should always allow the client to
745c70e5 BM	426	* start a new handshake?). We need to restart the mac.
a2a01589 BM	427	* Don't increment {num,total}_renegotiations because
a2a01589 BM	428	* we have not completed the handshake. */
3d14b9d0	429	ssl3_init_finished_mac(s);
3d14b9d0	430	}
745c70e5	431
d02b48c6 RE	432	s->s3->tmp.message_type= *(p++);
	433
	434	n2l3(p,l);
	435	if (l > (unsigned long)max)
	436	{
58964a49	437	al=SSL_AD_ILLEGAL_PARAMETER;
d02b48c6 RE	438	SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
	439	goto f_err;
	440	}
48948d53 BM	441	if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */
	442	{
	443	al=SSL_AD_ILLEGAL_PARAMETER;
	444	SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
	445	goto f_err;
	446	}
54a656ef	447	if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4))
d02b48c6 RE	448	{
	449	SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
	450	goto err;
	451	}
	452	s->s3->tmp.message_size=l;
	453	s->state=stn;
	454
48948d53 BM	455	s->init_msg = s->init_buf->data + 4;
48948d53 BM	456	s->init_num = 0;
d02b48c6 RE	457	}
	458
	459	/* next state (stn) */
48948d53 BM	460	p = s->init_msg;
48948d53 BM	461	n = s->s3->tmp.message_size - s->init_num;
b35e9050	462	while (n > 0)
d02b48c6	463	{
5a4fbc69	464	i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
b35e9050	465	if (i <= 0)
d02b48c6	466	{
b35e9050 BM	467	s->rwstate=SSL_READING;
	468	*ok = 0;
	469	return i;
d02b48c6	470	}
b35e9050 BM	471	s->init_num += i;
b35e9050 BM	472	n -= i;
d02b48c6	473	}
48948d53	474	ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
a661b653 BM	475	if (s->msg_callback)
a661b653 BM	476	s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
d02b48c6	477	*ok=1;
b35e9050	478	return s->init_num;
d02b48c6 RE	479	f_err:
	480	ssl3_send_alert(s,SSL3_AL_FATAL,al);
	481	err:
	482	*ok=0;
	483	return(-1);
	484	}
	485
6b691a5c	486	int ssl_cert_type(X509 x, EVP_PKEY pkey)
d02b48c6 RE	487	{
	488	EVP_PKEY *pk;
	489	int ret= -1,i,j;
	490
	491	if (pkey == NULL)
	492	pk=X509_get_pubkey(x);
	493	else
	494	pk=pkey;
	495	if (pk == NULL) goto err;
	496
	497	i=pk->type;
	498	if (i == EVP_PKEY_RSA)
	499	{
	500	ret=SSL_PKEY_RSA_ENC;
	501	if (x != NULL)
	502	{
	503	j=X509_get_ext_count(x);
	504	/* check to see if this is a signing only certificate */
	505	/* EAY EAY EAY EAY */
	506	}
	507	}
	508	else if (i == EVP_PKEY_DSA)
	509	{
	510	ret=SSL_PKEY_DSA_SIGN;
	511	}
	512	else if (i == EVP_PKEY_DH)
	513	{
	514	/* if we just have a key, we needs to be guess */
	515
	516	if (x == NULL)
	517	ret=SSL_PKEY_DH_DSA;
	518	else
	519	{
	520	j=X509_get_signature_type(x);
	521	if (j == EVP_PKEY_RSA)
	522	ret=SSL_PKEY_DH_RSA;
	523	else if (j== EVP_PKEY_DSA)
	524	ret=SSL_PKEY_DH_DSA;
	525	else ret= -1;
	526	}
	527	}
ea262260	528	#ifndef OPENSSL_NO_EC
5488bb61	529	else if (i == EVP_PKEY_EC)
ea262260 BM	530	{
	531	ret = SSL_PKEY_ECC;
	532	}
	533	#endif
d02b48c6 RE	534	else
	535	ret= -1;
	536
	537	err:
a8236c8c	538	if(!pkey) EVP_PKEY_free(pk);
d02b48c6 RE	539	return(ret);
	540	}
	541
6b691a5c	542	int ssl_verify_alarm_type(long type)
d02b48c6 RE	543	{
	544	int al;
	545
	546	switch(type)
	547	{
	548	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
58964a49	549	case X509_V_ERR_UNABLE_TO_GET_CRL:
b545dc67	550	case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
58964a49 RE	551	al=SSL_AD_UNKNOWN_CA;
58964a49 RE	552	break;
d02b48c6	553	case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
58964a49	554	case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
d02b48c6	555	case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
d02b48c6 RE	556	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
d02b48c6 RE	557	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
58964a49 RE	558	case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
	559	case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
	560	case X509_V_ERR_CERT_NOT_YET_VALID:
	561	case X509_V_ERR_CRL_NOT_YET_VALID:
11c26ecf LJ	562	case X509_V_ERR_CERT_UNTRUSTED:
11c26ecf LJ	563	case X509_V_ERR_CERT_REJECTED:
58964a49 RE	564	al=SSL_AD_BAD_CERTIFICATE;
	565	break;
	566	case X509_V_ERR_CERT_SIGNATURE_FAILURE:
	567	case X509_V_ERR_CRL_SIGNATURE_FAILURE:
	568	al=SSL_AD_DECRYPT_ERROR;
	569	break;
	570	case X509_V_ERR_CERT_HAS_EXPIRED:
	571	case X509_V_ERR_CRL_HAS_EXPIRED:
	572	al=SSL_AD_CERTIFICATE_EXPIRED;
	573	break;
	574	case X509_V_ERR_CERT_REVOKED:
	575	al=SSL_AD_CERTIFICATE_REVOKED;
	576	break;
	577	case X509_V_ERR_OUT_OF_MEM:
	578	al=SSL_AD_INTERNAL_ERROR;
	579	break;
d02b48c6 RE	580	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
	581	case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
	582	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
	583	case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
58964a49	584	case X509_V_ERR_CERT_CHAIN_TOO_LONG:
11c26ecf LJ	585	case X509_V_ERR_PATH_LENGTH_EXCEEDED:
11c26ecf LJ	586	case X509_V_ERR_INVALID_CA:
58964a49	587	al=SSL_AD_UNKNOWN_CA;
d02b48c6	588	break;
58964a49 RE	589	case X509_V_ERR_APPLICATION_VERIFICATION:
58964a49 RE	590	al=SSL_AD_HANDSHAKE_FAILURE;
d02b48c6	591	break;
11c26ecf LJ	592	case X509_V_ERR_INVALID_PURPOSE:
	593	al=SSL_AD_UNSUPPORTED_CERTIFICATE;
	594	break;
d02b48c6	595	default:
58964a49	596	al=SSL_AD_CERTIFICATE_UNKNOWN;
d02b48c6 RE	597	break;
	598	}
	599	return(al);
	600	}
	601
6b691a5c	602	int ssl3_setup_buffers(SSL *s)
d02b48c6 RE	603	{
	604	unsigned char *p;
	605	unsigned int extra;
82b0bf0b	606	size_t len;
d02b48c6 RE	607
	608	if (s->s3->rbuf.buf == NULL)
	609	{
58964a49	610	if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
d02b48c6 RE	611	extra=SSL3_RT_MAX_EXTRA;
	612	else
	613	extra=0;
82b0bf0b BM	614	len = SSL3_RT_MAX_PACKET_SIZE + extra;
82b0bf0b BM	615	if ((p=OPENSSL_malloc(len)) == NULL)
d02b48c6	616	goto err;
82b0bf0b BM	617	s->s3->rbuf.buf = p;
82b0bf0b BM	618	s->s3->rbuf.len = len;
d02b48c6 RE	619	}
	620
	621	if (s->s3->wbuf.buf == NULL)
	622	{
82b0bf0b BM	623	len = SSL3_RT_MAX_PACKET_SIZE;
	624	len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
	625	if ((p=OPENSSL_malloc(len)) == NULL)
d02b48c6	626	goto err;
82b0bf0b BM	627	s->s3->wbuf.buf = p;
82b0bf0b BM	628	s->s3->wbuf.len = len;
d02b48c6 RE	629	}
	630	s->packet= &(s->s3->rbuf.buf[0]);
	631	return(1);
	632	err:
	633	SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
	634	return(0);
	635	}