bio_ssl.c revision 9dc0df1bac950d6e491f9a7c7e4888f2b301cb15
/* 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
* 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 <stdlib.h>
#include <string.h>
#include <errno.h>
typedef struct bio_ssl_st
{
/* re-negotiate every time the total number of bytes is this size */
int num_renegotiates;
unsigned long renegotiate_count;
unsigned long byte_count;
unsigned long renegotiate_timeout;
unsigned long last_time;
} BIO_SSL;
static BIO_METHOD methods_sslp=
{
BIO_TYPE_SSL,"ssl",
NULL, /* ssl_gets, */
};
BIO_METHOD *BIO_f_ssl(void)
{
return(&methods_sslp);
}
{
{
return(0);
}
return(1);
}
{
if (a == NULL) return(0);
if (a->shutdown)
{
a->init=0;
a->flags=0;
}
OPENSSL_free(a->ptr);
return(1);
}
{
int ret=1;
int retry_reason=0;
int r=0;
#if 0
if (!SSL_is_init_finished(ssl))
{
/* ret=SSL_do_handshake(ssl); */
if (ret > 0)
{
ret= -1;
goto end;
}
}
#endif
/* if (ret > 0) */
{
case SSL_ERROR_NONE:
if (ret <= 0) break;
if (sb->renegotiate_count > 0)
{
{
sb->byte_count=0;
sb->num_renegotiates++;
r=1;
}
}
if ((sb->renegotiate_timeout > 0) && (!r))
{
unsigned long tm;
{
sb->num_renegotiates++;
}
}
break;
case SSL_ERROR_WANT_READ:
break;
case SSL_ERROR_WANT_WRITE:
break;
break;
case SSL_ERROR_WANT_ACCEPT:
break;
case SSL_ERROR_WANT_CONNECT:
break;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
case SSL_ERROR_ZERO_RETURN:
default:
break;
}
return(ret);
}
{
int ret,r=0;
int retry_reason=0;
/* ret=SSL_do_handshake(ssl);
if (ret > 0) */
{
case SSL_ERROR_NONE:
if (ret <= 0) break;
if (bs->renegotiate_count > 0)
{
{
bs->byte_count=0;
bs->num_renegotiates++;
r=1;
}
}
if ((bs->renegotiate_timeout > 0) && (!r))
{
unsigned long tm;
{
bs->num_renegotiates++;
}
}
break;
case SSL_ERROR_WANT_WRITE:
break;
case SSL_ERROR_WANT_READ:
break;
break;
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
default:
break;
}
return(ret);
}
{
long ret=1;
return(0);
switch (cmd)
{
case BIO_CTRL_RESET:
else
ret=1;
break;
case BIO_CTRL_INFO:
ret=0;
break;
case BIO_C_SSL_MODE:
if (num) /* client mode */
else
break;
break;
if ((long)num >=512)
break;
break;
case BIO_C_SET_SSL:
ssl_free(b);
{
}
b->init=1;
break;
case BIO_C_GET_SSL:
{
}
else
ret=0;
break;
case BIO_CTRL_GET_CLOSE:
break;
case BIO_CTRL_SET_CLOSE:
break;
case BIO_CTRL_WPENDING:
break;
case BIO_CTRL_PENDING:
if (ret == 0)
break;
case BIO_CTRL_FLUSH:
break;
case BIO_CTRL_PUSH:
{
}
break;
case BIO_CTRL_POP:
/* ugly bit of a hack */
{
}
{
}
break;
case BIO_C_DO_STATE_MACHINE:
b->retry_reason=0;
{
case SSL_ERROR_WANT_READ:
break;
case SSL_ERROR_WANT_WRITE:
break;
case SSL_ERROR_WANT_CONNECT:
break;
default:
break;
}
break;
case BIO_CTRL_DUP:
break;
case BIO_C_GET_FD:
break;
case BIO_CTRL_SET_CALLBACK:
{
#if 0 /* FIXME: Should this be used? -- Richard Levitte */
ret = -1;
#else
ret=0;
#endif
}
break;
case BIO_CTRL_GET_CALLBACK:
{
}
break;
default:
break;
}
return(ret);
}
{
long ret=1;
switch (cmd)
{
case BIO_CTRL_SET_CALLBACK:
{
/* FIXME: setting this via a completely different prototype
seems like a crap idea */
}
break;
default:
break;
}
return(ret);
}
{
int n,ret;
return(ret);
}
{
#ifndef OPENSSL_NO_SOCK
return(NULL);
goto err;
goto err;
return(ret);
err:
#endif
return(NULL);
}
{
return(NULL);
goto err;
goto err;
return(ret);
err:
return(NULL);
}
{
return(NULL);
{
return(NULL);
}
if (client)
else
return(ret);
}
{
t=BIO_find_type(t,BIO_TYPE_SSL);
f=BIO_find_type(f,BIO_TYPE_SSL);
return(0);
return(0);
return(1);
}
void BIO_ssl_shutdown(BIO *b)
{
SSL *s;
while (b != NULL)
{
{
SSL_shutdown(s);
break;
}
b=b->next_bio;
}
}