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Import of old SSLeay release: SSLeay 0.8.1b

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This commit is contained in:
Ralf S. Engelschall
1998-12-21 10:52:47 +00:00
commit d02b48c63a
931 changed files with 175384 additions and 0 deletions
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444
ssl/s3_both.c Normal file
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/* ssl/s3_both.c */
/* Copyright (C) 1995-1997 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.]
*/
#include <stdio.h>
#include "buffer.h"
#include "rand.h"
#include "objects.h"
#include "evp.h"
#include "x509.h"
#include "ssl_locl.h"
#define BREAK break
/* SSL3err(SSL_F_SSL3_GET_FINISHED,SSL_R_EXCESSIVE_MESSAGE_SIZE);
*/
unsigned char ssl3_server_finished_const[4]=
{SSL3_MD_SERVER_FINISHED_CONST};
unsigned char ssl3_client_finished_const[4]=
{SSL3_MD_CLIENT_FINISHED_CONST};
int ssl3_send_finished(s,a,b,sender)
SSL *s;
int a;
int b;
unsigned char *sender;
{
unsigned char *p,*d;
int i;
unsigned long l;
if (s->state == a)
{
d=(unsigned char *)s->init_buf->data;
p= &(d[4]);
i=ssl3_final_finish_mac(s,&(s->s3->finish_dgst1),sender,p);
p+=i;
l=i;
i=ssl3_final_finish_mac(s,&(s->s3->finish_dgst2),sender,p);
l+=i;
*(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(s,a,b,sender)
SSL *s;
int a;
int b;
unsigned char *sender;
{
int al,i,j,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.in_dgst[12]
*/
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 if we has missed a message */
if (!s->s3->change_cipher_spec)
{
al=SSL3_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_buf->data;
i=EVP_MD_CTX_size(&(s->s3->finish_dgst1));
j=EVP_MD_CTX_size(&(s->s3->finish_dgst2));
if ((i+j) != n)
{
al=SSL3_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
goto f_err;
}
if ( (memcmp( p, &(s->s3->tmp.finish_md1[0]),i) != 0) ||
(memcmp(&(p[i]),&(s->s3->tmp.finish_md2[0]),j) != 0))
{
al=SSL3_AD_ILLEGAL_PARAMETER;
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(s,a,b)
SSL *s;
int a,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(s,x)
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;
X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
buf=s->init_buf;
for (;;)
{
n=i2d_X509(x,NULL);
if (!BUF_MEM_grow(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);
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);
}
long ssl3_get_message(s,st1,stn,mt,max,ok)
SSL *s;
int st1,stn,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=SSL3_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
*ok=1;
return((int)s->s3->tmp.message_size);
}
p=(unsigned char *)s->init_buf->data;
if (s->state == st1)
{
i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
(char *)&(p[s->init_num]),
4-s->init_num);
if (i < (4-s->init_num))
{
*ok=0;
return(ssl3_part_read(s,i));
}
if ((mt >= 0) && (*p != mt))
{
al=SSL3_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
s->s3->tmp.message_type= *(p++);
n2l3(p,l);
if (l > (unsigned long)max)
{
al=SSL3_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
goto f_err;
}
if (l && !BUF_MEM_grow(s->init_buf,(int)l))
{
SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
goto err;
}
s->s3->tmp.message_size=l;
s->state=stn;
s->init_num=0;
}
/* next state (stn) */
p=(unsigned char *)s->init_buf->data;
n=s->s3->tmp.message_size;
if (n > 0)
{
i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
(char *)&(p[s->init_num]),(int)n);
if (i != (int)n)
{
*ok=0;
return(ssl3_part_read(s,i));
}
}
*ok=1;
return(n);
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
err:
*ok=0;
return(-1);
}
int ssl_cert_type(x,pkey)
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;
}
}
else
ret= -1;
err:
return(ret);
}
int ssl_verify_alarm_type(type)
int type;
{
int al;
switch(type)
{
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
case X509_V_ERR_CERT_SIGNATURE_FAILURE:
case X509_V_ERR_CERT_NOT_YET_VALID:
case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
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:
al=SSL3_AD_BAD_CERTIFICATE;
break;
case X509_V_ERR_CERT_HAS_EXPIRED:
al=SSL3_AD_CERTIFICATE_EXPIRED;
break;
default:
al=SSL3_AD_CERTIFICATE_UNKNOWN;
break;
}
return(al);
}
int ssl3_setup_buffers(s)
SSL *s;
{
unsigned char *p;
unsigned int extra;
if (s->s3->rbuf.buf == NULL)
{
if (s->ctx->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
extra=SSL3_RT_MAX_EXTRA;
else
extra=0;
if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
== NULL)
goto err;
s->s3->rbuf.buf=p;
}
if (s->s3->wbuf.buf == NULL)
{
if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
== NULL)
goto err;
s->s3->wbuf.buf=p;
}
s->packet= &(s->s3->rbuf.buf[0]);
return(1);
err:
SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
return(0);
}