/* apps/s_server.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) 1998-2006 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.
*/
/* ====================================================================
* Copyright 2005 Nokia. All rights reserved.
*
* The portions of the attached software ("Contribution") is developed by
* Nokia Corporation and is licensed pursuant to the OpenSSL open source
* license.
*
* The Contribution, originally written by Mika Kousa and Pasi Eronen of
* Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
* support (see RFC 4279) to OpenSSL.
*
* No patent licenses or other rights except those expressly stated in
* the OpenSSL open source license shall be deemed granted or received
* expressly, by implication, estoppel, or otherwise.
*
* No assurances are provided by Nokia that the Contribution does not
* infringe the patent or other intellectual property rights of any third
* party or that the license provides you with all the necessary rights
* to make use of the Contribution.
*
* THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
* ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
* SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
* OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
* OTHERWISE.
*/
/* Until the key-gen callbacks are modified to use newer prototypes, we allow
* deprecated functions for openssl-internal code */
#ifdef OPENSSL_NO_DEPRECATED
#undef OPENSSL_NO_DEPRECATED
#endif
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/e_os2.h>
#ifdef OPENSSL_NO_STDIO
#define APPS_WIN16
#endif
#if !defined(OPENSSL_SYS_NETWARE) /* conflicts with winsock2 stuff on netware */
#include <sys/types.h>
#endif
/* With IPv6, it looks like Digital has mixed up the proper order of
recursive header file inclusion, resulting in the compiler complaining
that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
is needed to have fileno() declared correctly... So let's define u_int */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
#define __U_INT
typedef unsigned int u_int;
#endif
#include <openssl/lhash.h>
#include <openssl/bn.h>
#define USE_SOCKETS
#include "apps.h"
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/ocsp.h>
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_SRP
#include <openssl/srp.h>
#endif
#include "s_apps.h"
#include "timeouts.h"
#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
#undef FIONBIO
#endif
#if defined(OPENSSL_SYS_BEOS_R5)
#include <fcntl.h>
#endif
#ifndef OPENSSL_NO_RSA
static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
#endif
static int sv_body(char *hostname, int s, unsigned char *context);
static int www_body(char *hostname, int s, unsigned char *context);
static void close_accept_socket(void );
static void sv_usage(void);
static int init_ssl_connection(SSL *s);
static void print_stats(BIO *bp,SSL_CTX *ctx);
static int generate_session_id(const SSL *ssl, unsigned char *id,
unsigned int *id_len);
#ifndef OPENSSL_NO_DH
static DH *load_dh_param(const char *dhfile);
static DH *get_dh512(void);
#endif
#ifdef MONOLITH
static void s_server_init(void);
#endif
#ifndef OPENSSL_NO_DH
static unsigned char dh512_p[]={
0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
0x47,0x74,0xE8,0x33,
};
static unsigned char dh512_g[]={
0x02,
};
static DH *get_dh512(void)
{
DH *dh=NULL;
if ((dh=DH_new()) == NULL) return(NULL);
dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
if ((dh->p == NULL) || (dh->g == NULL))
return(NULL);
return(dh);
}
#endif
/* static int load_CA(SSL_CTX *ctx, char *file);*/
#undef BUFSIZZ
#define BUFSIZZ 16*1024
static int bufsize=BUFSIZZ;
static int accept_socket= -1;
#define TEST_CERT "server.pem"
#ifndef OPENSSL_NO_TLSEXT
#define TEST_CERT2 "server2.pem"
#endif
#undef PROG
#define PROG s_server_main
extern int verify_depth, verify_return_error;
static char *cipher=NULL;
static int s_server_verify=SSL_VERIFY_NONE;
static int s_server_session_id_context = 1; /* anything will do */
static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
#ifndef OPENSSL_NO_TLSEXT
static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
#endif
static char *s_dcert_file=NULL,*s_dkey_file=NULL;
#ifdef FIONBIO
static int s_nbio=0;
#endif
static int s_nbio_test=0;
int s_crlf=0;
static SSL_CTX *ctx=NULL;
#ifndef OPENSSL_NO_TLSEXT
static SSL_CTX *ctx2=NULL;
#endif
static int www=0;
static BIO *bio_s_out=NULL;
static int s_debug=0;
#ifndef OPENSSL_NO_TLSEXT
static int s_tlsextdebug=0;
static int s_tlsextstatus=0;
static int cert_status_cb(SSL *s, void *arg);
#endif
static int s_msg=0;
static int s_quiet=0;
static char *keymatexportlabel=NULL;
static int keymatexportlen=20;
static int hack=0;
#ifndef OPENSSL_NO_ENGINE
static char *engine_id=NULL;
#endif
static const char *session_id_prefix=NULL;
static int enable_timeouts = 0;
static long socket_mtu;
#ifndef OPENSSL_NO_DTLS1
static int cert_chain = 0;
#endif
#ifndef OPENSSL_NO_PSK
static char *psk_identity="Client_identity";
char *psk_key=NULL; /* by default PSK is not used */
static unsigned int psk_server_cb(SSL *ssl, const char *identity,
unsigned char *psk, unsigned int max_psk_len)
{
unsigned int psk_len = 0;
int ret;
BIGNUM *bn = NULL;
if (s_debug)
BIO_printf(bio_s_out,"psk_server_cb\n");
if (!identity)
{
BIO_printf(bio_err,"Error: client did not send PSK identity\n");
goto out_err;
}
if (s_debug)
BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
identity ? (int)strlen(identity) : 0, identity);
/* here we could lookup the given identity e.g. from a database */
if (strcmp(identity, psk_identity) != 0)
{
BIO_printf(bio_s_out, "PSK error: client identity not found"
" (got '%s' expected '%s')\n", identity,
psk_identity);
goto out_err;
}
if (s_debug)
BIO_printf(bio_s_out, "PSK client identity found\n");
/* convert the PSK key to binary */
ret = BN_hex2bn(&bn, psk_key);
if (!ret)
{
BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
if (bn)
BN_free(bn);
return 0;
}
if (BN_num_bytes(bn) > (int)max_psk_len)
{
BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
max_psk_len, BN_num_bytes(bn));
BN_free(bn);
return 0;
}
ret = BN_bn2bin(bn, psk);
BN_free(bn);
if (ret < 0)
goto out_err;
psk_len = (unsigned int)ret;
if (s_debug)
BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
return psk_len;
out_err:
if (s_debug)
BIO_printf(bio_err, "Error in PSK server callback\n");
return 0;
}
#endif
#ifndef OPENSSL_NO_SRP
/* This is a context that we pass to callbacks */
typedef struct srpsrvparm_st
{
char *login;
SRP_VBASE *vb;
SRP_user_pwd *user;
} srpsrvparm;
/* This callback pretends to require some asynchronous logic in order to obtain
a verifier. When the callback is called for a new connection we return
with a negative value. This will provoke the accept etc to return with
an LOOKUP_X509. The main logic of the reinvokes the suspended call
(which would normally occur after a worker has finished) and we
set the user parameters.
*/
static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
{
srpsrvparm *p = (srpsrvparm *)arg;
if (p->login == NULL && p->user == NULL )
{
p->login = SSL_get_srp_username(s);
BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
return (-1) ;
}
if (p->user == NULL)
{
BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
return SSL3_AL_FATAL;
}
if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
p->user->info) < 0)
{
*ad = SSL_AD_INTERNAL_ERROR;
return SSL3_AL_FATAL;
}
BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
/* need to check whether there are memory leaks */
p->user = NULL;
p->login = NULL;
return SSL_ERROR_NONE;
}
#endif
#ifdef MONOLITH
static void s_server_init(void)
{
accept_socket=-1;
cipher=NULL;
s_server_verify=SSL_VERIFY_NONE;
s_dcert_file=NULL;
s_dkey_file=NULL;
s_cert_file=TEST_CERT;
s_key_file=NULL;
#ifndef OPENSSL_NO_TLSEXT
s_cert_file2=TEST_CERT2;
s_key_file2=NULL;
ctx2=NULL;
#endif
#ifdef FIONBIO
s_nbio=0;
#endif
s_nbio_test=0;
ctx=NULL;
www=0;
bio_s_out=NULL;
s_debug=0;
s_msg=0;
s_quiet=0;
hack=0;
#ifndef OPENSSL_NO_ENGINE
engine_id=NULL;
#endif
}
#endif
static void sv_usage(void)
{
BIO_printf(bio_err,"usage: s_server [args ...]\n");
BIO_printf(bio_err,"\n");
BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT);
BIO_printf(bio_err," -context arg - set session ID context\n");
BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n");
BIO_printf(bio_err," -cert arg - certificate file to use\n");
BIO_printf(bio_err," (default is %s)\n",TEST_CERT);
BIO_printf(bio_err," -crl_check - check the peer certificate has not been revoked by its CA.\n" \
" The CRL(s) are appended to the certificate file\n");
BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
" or any other CRL in the CA chain. CRL(s) are appened to the\n" \
" the certificate file.\n");
BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
BIO_printf(bio_err," -key arg - Private Key file to use, in cert file if\n");
BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT);
BIO_printf(bio_err," -keyform arg - key format (PEM, DER or ENGINE) PEM default\n");
BIO_printf(bio_err," -pass arg - private key file pass phrase source\n");
BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n");
BIO_printf(bio_err," -dcertform x - second certificate format (PEM or DER) PEM default\n");
BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n");
BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
BIO_printf(bio_err," -dpass arg - second private key file pass phrase source\n");
BIO_printf(bio_err," -dhparam arg - DH parameter file to use, in cert file if not specified\n");
BIO_printf(bio_err," or a default set of parameters is used\n");
#ifndef OPENSSL_NO_ECDH
BIO_printf(bio_err," -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \
" Use \"openssl ecparam -list_curves\" for all names\n" \
" (default is nistp256).\n");
#endif
#ifdef FIONBIO
BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
#endif
BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n");
BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
BIO_printf(bio_err," -debug - Print more output\n");
BIO_printf(bio_err," -msg - Show protocol messages\n");
BIO_printf(bio_err," -state - Print the SSL states\n");
BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n");
BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n");
BIO_printf(bio_err," -serverpref - Use server's cipher preferences\n");
BIO_printf(bio_err," -quiet - No server output\n");
BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n");
#ifndef OPENSSL_NO_PSK
BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\n");
# ifndef OPENSSL_NO_JPAKE
BIO_printf(bio_err," -jpake arg - JPAKE secret to use\n");
# endif
#endif
#ifndef OPENSSL_NO_SRP
BIO_printf(bio_err," -srpvfile file - The verifier file for SRP\n");
BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
#endif
BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n");
BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n");
BIO_printf(bio_err," -tls1_2 - Just talk TLSv1.2\n");
BIO_printf(bio_err," -tls1_1 - Just talk TLSv1.1\n");
BIO_printf(bio_err," -tls1 - Just talk TLSv1\n");
BIO_printf(bio_err," -dtls1 - Just talk DTLSv1\n");
BIO_printf(bio_err," -timeout - Enable timeouts\n");
BIO_printf(bio_err," -mtu - Set link layer MTU\n");
BIO_printf(bio_err," -chain - Read a certificate chain\n");
BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n");
BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n");
BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n");
BIO_printf(bio_err," -no_tls1_1 - Just disable TLSv1.1\n");
BIO_printf(bio_err," -no_tls1_2 - Just disable TLSv1.2\n");
#ifndef OPENSSL_NO_DH
BIO_printf(bio_err," -no_dhe - Disable ephemeral DH\n");
#endif
#ifndef OPENSSL_NO_ECDH
BIO_printf(bio_err," -no_ecdhe - Disable ephemeral ECDH\n");
#endif
BIO_printf(bio_err," -bugs - Turn on SSL bug compatibility\n");
BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n");
BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
BIO_printf(bio_err," -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
BIO_printf(bio_err," with the assumption it contains a complete HTTP response.\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
#endif
BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
#ifndef OPENSSL_NO_TLSEXT
BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
BIO_printf(bio_err," -cert2 arg - certificate file to use for servername\n");
BIO_printf(bio_err," (default is %s)\n",TEST_CERT2);
BIO_printf(bio_err," -key2 arg - Private Key file to use for servername, in cert file if\n");
BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT2);
BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n");
BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n");
BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
# ifndef OPENSSL_NO_NEXTPROTONEG
BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
# endif
BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
#endif
BIO_printf(bio_err," -keymatexport label - Export keying material using label\n");
BIO_printf(bio_err," -keymatexportlen len - Export len bytes of keying material (default 20)\n");
}
static int local_argc=0;
static char **local_argv;
#ifdef CHARSET_EBCDIC
static int ebcdic_new(BIO *bi);
static int ebcdic_free(BIO *a);
static int ebcdic_read(BIO *b, char *out, int outl);
static int ebcdic_write(BIO *b, const char *in, int inl);
static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
static int ebcdic_gets(BIO *bp, char *buf, int size);
static int ebcdic_puts(BIO *bp, const char *str);
#define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
static BIO_METHOD methods_ebcdic=
{
BIO_TYPE_EBCDIC_FILTER,
"EBCDIC/ASCII filter",
ebcdic_write,
ebcdic_read,
ebcdic_puts,
ebcdic_gets,
ebcdic_ctrl,
ebcdic_new,
ebcdic_free,
};
typedef struct
{
size_t alloced;
char buff[1];
} EBCDIC_OUTBUFF;
BIO_METHOD *BIO_f_ebcdic_filter()
{
return(&methods_ebcdic);
}
static int ebcdic_new(BIO *bi)
{
EBCDIC_OUTBUFF *wbuf;
wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
wbuf->alloced = 1024;
wbuf->buff[0] = '\0';
bi->ptr=(char *)wbuf;
bi->init=1;
bi->flags=0;
return(1);
}
static int ebcdic_free(BIO *a)
{
if (a == NULL) return(0);
if (a->ptr != NULL)
OPENSSL_free(a->ptr);
a->ptr=NULL;
a->init=0;
a->flags=0;
return(1);
}
static int ebcdic_read(BIO *b, char *out, int outl)
{
int ret=0;
if (out == NULL || outl == 0) return(0);
if (b->next_bio == NULL) return(0);
ret=BIO_read(b->next_bio,out,outl);
if (ret > 0)
ascii2ebcdic(out,out,ret);
return(ret);
}
static int ebcdic_write(BIO *b, const char *in, int inl)
{
EBCDIC_OUTBUFF *wbuf;
int ret=0;
int num;
unsigned char n;
if ((in == NULL) || (inl <= 0)) return(0);
if (b->next_bio == NULL) return(0);
wbuf=(EBCDIC_OUTBUFF *)b->ptr;
if (inl > (num = wbuf->alloced))
{
num = num + num; /* double the size */
if (num < inl)
num = inl;
OPENSSL_free(wbuf);
wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
wbuf->alloced = num;
wbuf->buff[0] = '\0';
b->ptr=(char *)wbuf;
}
ebcdic2ascii(wbuf->buff, in, inl);
ret=BIO_write(b->next_bio, wbuf->buff, inl);
return(ret);
}
static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
{
long ret;
if (b->next_bio == NULL) return(0);
switch (cmd)
{
case BIO_CTRL_DUP:
ret=0L;
break;
default:
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
break;
}
return(ret);
}
static int ebcdic_gets(BIO *bp, char *buf, int size)
{
int i, ret=0;
if (bp->next_bio == NULL) return(0);
/* return(BIO_gets(bp->next_bio,buf,size));*/
for (i=0; i<size-1; ++i)
{
ret = ebcdic_read(bp,&buf[i],1);
if (ret <= 0)
break;
else if (buf[i] == '\n')
{
++i;
break;
}
}
if (i < size)
buf[i] = '\0';
return (ret < 0 && i == 0) ? ret : i;
}
static int ebcdic_puts(BIO *bp, const char *str)
{
if (bp->next_bio == NULL) return(0);
return ebcdic_write(bp, str, strlen(str));
}
#endif
#ifndef OPENSSL_NO_TLSEXT
/* This is a context that we pass to callbacks */
typedef struct tlsextctx_st {
char * servername;
BIO * biodebug;
int extension_error;
} tlsextctx;
static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
{
tlsextctx * p = (tlsextctx *) arg;
const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
if (servername && p->biodebug)
BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
if (!p->servername)
return SSL_TLSEXT_ERR_NOACK;
if (servername)
{
if (strcmp(servername,p->servername))
return p->extension_error;
if (ctx2)
{
BIO_printf(p->biodebug,"Switching server context.\n");
SSL_set_SSL_CTX(s,ctx2);
}
}
return SSL_TLSEXT_ERR_OK;
}
/* Structure passed to cert status callback */
typedef struct tlsextstatusctx_st {
/* Default responder to use */
char *host, *path, *port;
int use_ssl;
int timeout;
BIO *err;
int verbose;
} tlsextstatusctx;
static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
/* Certificate Status callback. This is called when a client includes a
* certificate status request extension.
*
* This is a simplified version. It examines certificates each time and
* makes one OCSP responder query for each request.
*
* A full version would store details such as the OCSP certificate IDs and
* minimise the number of OCSP responses by caching them until they were
* considered "expired".
*/
static int cert_status_cb(SSL *s, void *arg)
{
tlsextstatusctx *srctx = arg;
BIO *err = srctx->err;
char *host, *port, *path;
int use_ssl;
unsigned char *rspder = NULL;
int rspderlen;
STACK_OF(OPENSSL_STRING) *aia = NULL;
X509 *x = NULL;
X509_STORE_CTX inctx;
X509_OBJECT obj;
OCSP_REQUEST *req = NULL;
OCSP_RESPONSE *resp = NULL;
OCSP_CERTID *id = NULL;
STACK_OF(X509_EXTENSION) *exts;
int ret = SSL_TLSEXT_ERR_NOACK;
int i;
#if 0
STACK_OF(OCSP_RESPID) *ids;
SSL_get_tlsext_status_ids(s, &ids);
BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
#endif
if (srctx->verbose)
BIO_puts(err, "cert_status: callback called\n");
/* Build up OCSP query from server certificate */
x = SSL_get_certificate(s);
aia = X509_get1_ocsp(x);
if (aia)
{
if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
&host, &port, &path, &use_ssl))
{
BIO_puts(err, "cert_status: can't parse AIA URL\n");
goto err;
}
if (srctx->verbose)
BIO_printf(err, "cert_status: AIA URL: %s\n",
sk_OPENSSL_STRING_value(aia, 0));
}
else
{
if (!srctx->host)
{
BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
goto done;
}
host = srctx->host;
path = srctx->path;
port = srctx->port;
use_ssl = srctx->use_ssl;
}
if (!X509_STORE_CTX_init(&inctx,
SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
NULL, NULL))
goto err;
if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
X509_get_issuer_name(x),&obj) <= 0)
{
BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
X509_STORE_CTX_cleanup(&inctx);
goto done;
}
req = OCSP_REQUEST_new();
if (!req)
goto err;
id = OCSP_cert_to_id(NULL, x, obj.data.x509);
X509_free(obj.data.x509);
X509_STORE_CTX_cleanup(&inctx);
if (!id)
goto err;
if (!OCSP_request_add0_id(req, id))
goto err;
id = NULL;
/* Add any extensions to the request */
SSL_get_tlsext_status_exts(s, &exts);
for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
{
X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
if (!OCSP_REQUEST_add_ext(req, ext, -1))
goto err;
}
resp = process_responder(err, req, host, path, port, use_ssl, NULL,
srctx->timeout);
if (!resp)
{
BIO_puts(err, "cert_status: error querying responder\n");
goto done;
}
rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
if (rspderlen <= 0)
goto err;
SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
if (srctx->verbose)
{
BIO_puts(err, "cert_status: ocsp response sent:\n");
OCSP_RESPONSE_print(err, resp, 2);
}
ret = SSL_TLSEXT_ERR_OK;
done:
if (ret != SSL_TLSEXT_ERR_OK)
ERR_print_errors(err);
if (aia)
{
OPENSSL_free(host);
OPENSSL_free(path);
OPENSSL_free(port);
X509_email_free(aia);
}
if (id)
OCSP_CERTID_free(id);
if (req)
OCSP_REQUEST_free(req);
if (resp)
OCSP_RESPONSE_free(resp);
return ret;
err:
ret = SSL_TLSEXT_ERR_ALERT_FATAL;
goto done;
}
# ifndef OPENSSL_NO_NEXTPROTONEG
/* This is the context that we pass to next_proto_cb */
typedef struct tlsextnextprotoctx_st {
unsigned char *data;
unsigned int len;
} tlsextnextprotoctx;
static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
{
tlsextnextprotoctx *next_proto = arg;
*data = next_proto->data;
*len = next_proto->len;
return SSL_TLSEXT_ERR_OK;
}
# endif /* ndef OPENSSL_NO_NEXTPROTONEG */
#endif
int MAIN(int, char **);
#ifndef OPENSSL_NO_JPAKE
static char *jpake_secret = NULL;
#endif
#ifndef OPENSSL_NO_SRP
static srpsrvparm srp_callback_parm;
#endif
static char *srtp_profiles = NULL;
int MAIN(int argc, char *argv[])
{
X509_VERIFY_PARAM *vpm = NULL;
int badarg = 0;
short port=PORT;
char *CApath=NULL,*CAfile=NULL;
unsigned char *context = NULL;
char *dhfile = NULL;
#ifndef OPENSSL_NO_ECDH
char *named_curve = NULL;
#endif
int badop=0,bugs=0;
int ret=1;
int off=0;
int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
int state=0;
const SSL_METHOD *meth=NULL;
int socket_type=SOCK_STREAM;
ENGINE *e=NULL;
char *inrand=NULL;
int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
char *passarg = NULL, *pass = NULL;
char *dpassarg = NULL, *dpass = NULL;
int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
X509 *s_cert = NULL, *s_dcert = NULL;
EVP_PKEY *s_key = NULL, *s_dkey = NULL;
int no_cache = 0;
#ifndef OPENSSL_NO_TLSEXT
EVP_PKEY *s_key2 = NULL;
X509 *s_cert2 = NULL;
tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
# ifndef OPENSSL_NO_NEXTPROTONEG
const char *next_proto_neg_in = NULL;
tlsextnextprotoctx next_proto;
# endif
#endif
#ifndef OPENSSL_NO_PSK
/* by default do not send a PSK identity hint */
static char *psk_identity_hint=NULL;
#endif
#ifndef OPENSSL_NO_SRP
char *srpuserseed = NULL;
char *srp_verifier_file = NULL;
#endif
meth=SSLv23_server_method();
local_argc=argc;
local_argv=argv;
apps_startup();
#ifdef MONOLITH
s_server_init();
#endif
if (bio_err == NULL)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
if (!load_config(bio_err, NULL))
goto end;
verify_depth=0;
#ifdef FIONBIO
s_nbio=0;
#endif
s_nbio_test=0;
argc--;
argv++;
while (argc >= 1)
{
if ((strcmp(*argv,"-port") == 0) ||
(strcmp(*argv,"-accept") == 0))
{
if (--argc < 1) goto bad;
if (!extract_port(*(++argv),&port))
goto bad;
}
else if (strcmp(*argv,"-verify") == 0)
{
s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
if (--argc < 1) goto bad;
verify_depth=atoi(*(++argv));
BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
}
else if (strcmp(*argv,"-Verify") == 0)
{
s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
SSL_VERIFY_CLIENT_ONCE;
if (--argc < 1) goto bad;
verify_depth=atoi(*(++argv));
BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
}
else if (strcmp(*argv,"-context") == 0)
{
if (--argc < 1) goto bad;
context= (unsigned char *)*(++argv);
}
else if (strcmp(*argv,"-cert") == 0)
{
if (--argc < 1) goto bad;
s_cert_file= *(++argv);
}
else if (strcmp(*argv,"-certform") == 0)
{
if (--argc < 1) goto bad;
s_cert_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-key") == 0)
{
if (--argc < 1) goto bad;
s_key_file= *(++argv);
}
else if (strcmp(*argv,"-keyform") == 0)
{
if (--argc < 1) goto bad;
s_key_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-pass") == 0)
{
if (--argc < 1) goto bad;
passarg = *(++argv);
}
else if (strcmp(*argv,"-dhparam") == 0)
{
if (--argc < 1) goto bad;
dhfile = *(++argv);
}
#ifndef OPENSSL_NO_ECDH
else if (strcmp(*argv,"-named_curve") == 0)
{
if (--argc < 1) goto bad;
named_curve = *(++argv);
}
#endif
else if (strcmp(*argv,"-dcertform") == 0)
{
if (--argc < 1) goto bad;
s_dcert_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-dcert") == 0)
{
if (--argc < 1) goto bad;
s_dcert_file= *(++argv);
}
else if (strcmp(*argv,"-dkeyform") == 0)
{
if (--argc < 1) goto bad;
s_dkey_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-dpass") == 0)
{
if (--argc < 1) goto bad;
dpassarg = *(++argv);
}
else if (strcmp(*argv,"-dkey") == 0)
{
if (--argc < 1) goto bad;
s_dkey_file= *(++argv);
}
else if (strcmp(*argv,"-nocert") == 0)
{
nocert=1;
}
else if (strcmp(*argv,"-CApath") == 0)
{
if (--argc < 1) goto bad;
CApath= *(++argv);
}
else if (strcmp(*argv,"-no_cache") == 0)
no_cache = 1;
else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
{
if (badarg)
goto bad;
continue;
}
else if (strcmp(*argv,"-verify_return_error") == 0)
verify_return_error = 1;
else if (strcmp(*argv,"-serverpref") == 0)
{ off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
else if (strcmp(*argv,"-legacy_renegotiation") == 0)
off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
else if (strcmp(*argv,"-cipher") == 0)
{
if (--argc < 1) goto bad;
cipher= *(++argv);
}
else if (strcmp(*argv,"-CAfile") == 0)
{
if (--argc < 1) goto bad;
CAfile= *(++argv);
}
#ifdef FIONBIO
else if (strcmp(*argv,"-nbio") == 0)
{ s_nbio=1; }
#endif
else if (strcmp(*argv,"-nbio_test") == 0)
{
#ifdef FIONBIO
s_nbio=1;
#endif
s_nbio_test=1;
}
else if (strcmp(*argv,"-debug") == 0)
{ s_debug=1; }
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-tlsextdebug") == 0)
s_tlsextdebug=1;
else if (strcmp(*argv,"-status") == 0)
s_tlsextstatus=1;
else if (strcmp(*argv,"-status_verbose") == 0)
{
s_tlsextstatus=1;
tlscstatp.verbose = 1;
}
else if (!strcmp(*argv, "-status_timeout"))
{
s_tlsextstatus=1;
if (--argc < 1) goto bad;
tlscstatp.timeout = atoi(*(++argv));
}
else if (!strcmp(*argv, "-status_url"))
{
s_tlsextstatus=1;
if (--argc < 1) goto bad;
if (!OCSP_parse_url(*(++argv),
&tlscstatp.host,
&tlscstatp.port,
&tlscstatp.path,
&tlscstatp.use_ssl))
{
BIO_printf(bio_err, "Error parsing URL\n");
goto bad;
}
}
#endif
else if (strcmp(*argv,"-msg") == 0)
{ s_msg=1; }
else if (strcmp(*argv,"-hack") == 0)
{ hack=1; }
else if (strcmp(*argv,"-state") == 0)
{ state=1; }
else if (strcmp(*argv,"-crlf") == 0)
{ s_crlf=1; }
else if (strcmp(*argv,"-quiet") == 0)
{ s_quiet=1; }
else if (strcmp(*argv,"-bugs") == 0)
{ bugs=1; }
else if (strcmp(*argv,"-no_tmp_rsa") == 0)
{ no_tmp_rsa=1; }
else if (strcmp(*argv,"-no_dhe") == 0)
{ no_dhe=1; }
else if (strcmp(*argv,"-no_ecdhe") == 0)
{ no_ecdhe=1; }
#ifndef OPENSSL_NO_PSK
else if (strcmp(*argv,"-psk_hint") == 0)
{
if (--argc < 1) goto bad;
psk_identity_hint= *(++argv);
}
else if (strcmp(*argv,"-psk") == 0)
{
size_t i;
if (--argc < 1) goto bad;
psk_key=*(++argv);
for (i=0; i<strlen(psk_key); i++)
{
if (isxdigit((unsigned char)psk_key[i]))
continue;
BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
goto bad;
}
}
#endif
#ifndef OPENSSL_NO_SRP
else if (strcmp(*argv, "-srpvfile") == 0)
{
if (--argc < 1) goto bad;
srp_verifier_file = *(++argv);
meth=TLSv1_server_method();
}
else if (strcmp(*argv, "-srpuserseed") == 0)
{
if (--argc < 1) goto bad;
srpuserseed = *(++argv);
meth=TLSv1_server_method();
}
#endif
else if (strcmp(*argv,"-www") == 0)
{ www=1; }
else if (strcmp(*argv,"-WWW") == 0)
{ www=2; }
else if (strcmp(*argv,"-HTTP") == 0)
{ www=3; }
else if (strcmp(*argv,"-no_ssl2") == 0)
{ off|=SSL_OP_NO_SSLv2; }
else if (strcmp(*argv,"-no_ssl3") == 0)
{ off|=SSL_OP_NO_SSLv3; }
else if (strcmp(*argv,"-no_tls1") == 0)
{ off|=SSL_OP_NO_TLSv1; }
else if (strcmp(*argv,"-no_tls1_1") == 0)
{ off|=SSL_OP_NO_TLSv1_1; }
else if (strcmp(*argv,"-no_tls1_2") == 0)
{ off|=SSL_OP_NO_TLSv1_2; }
else if (strcmp(*argv,"-no_comp") == 0)
{ off|=SSL_OP_NO_COMPRESSION; }
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-no_ticket") == 0)
{ off|=SSL_OP_NO_TICKET; }
#endif
#ifndef OPENSSL_NO_SSL2
else if (strcmp(*argv,"-ssl2") == 0)
{ meth=SSLv2_server_method(); }
#endif
#ifndef OPENSSL_NO_SSL3
else if (strcmp(*argv,"-ssl3") == 0)
{ meth=SSLv3_server_method(); }
#endif
#ifndef OPENSSL_NO_TLS1
else if (strcmp(*argv,"-tls1") == 0)
{ meth=TLSv1_server_method(); }
else if (strcmp(*argv,"-tls1_1") == 0)
{ meth=TLSv1_1_server_method(); }
else if (strcmp(*argv,"-tls1_2") == 0)
{ meth=TLSv1_2_server_method(); }
#endif
#ifndef OPENSSL_NO_DTLS1
else if (strcmp(*argv,"-dtls1") == 0)
{
meth=DTLSv1_server_method();
socket_type = SOCK_DGRAM;
}
else if (strcmp(*argv,"-timeout") == 0)
enable_timeouts = 1;
else if (strcmp(*argv,"-mtu") == 0)
{
if (--argc < 1) goto bad;
socket_mtu = atol(*(++argv));
}
else if (strcmp(*argv, "-chain") == 0)
cert_chain = 1;
#endif
else if (strcmp(*argv, "-id_prefix") == 0)
{
if (--argc < 1) goto bad;
session_id_prefix = *(++argv);
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine_id= *(++argv);
}
#endif
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) goto bad;
inrand= *(++argv);
}
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-servername") == 0)
{
if (--argc < 1) goto bad;
tlsextcbp.servername= *(++argv);
}
else if (strcmp(*argv,"-servername_fatal") == 0)
{ tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
else if (strcmp(*argv,"-cert2") == 0)
{
if (--argc < 1) goto bad;
s_cert_file2= *(++argv);
}
else if (strcmp(*argv,"-key2") == 0)
{
if (--argc < 1) goto bad;
s_key_file2= *(++argv);
}
# ifndef OPENSSL_NO_NEXTPROTONEG
else if (strcmp(*argv,"-nextprotoneg") == 0)
{
if (--argc < 1) goto bad;
next_proto_neg_in = *(++argv);
}
# endif
#endif
#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
else if (strcmp(*argv,"-jpake") == 0)
{
if (--argc < 1) goto bad;
jpake_secret = *(++argv);
}
#endif
else if (strcmp(*argv,"-use_srtp") == 0)
{
if (--argc < 1) goto bad;
srtp_profiles = *(++argv);
}
else if (strcmp(*argv,"-keymatexport") == 0)
{
if (--argc < 1) goto bad;
keymatexportlabel= *(++argv);
}
else if (strcmp(*argv,"-keymatexportlen") == 0)
{
if (--argc < 1) goto bad;
keymatexportlen=atoi(*(++argv));
if (keymatexportlen == 0) goto bad;
}
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badop=1;
break;
}
argc--;
argv++;
}
if (badop)
{
bad:
sv_usage();
goto end;
}
#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
if (jpake_secret)
{
if (psk_key)
{
BIO_printf(bio_err,
"Can't use JPAKE and PSK together\n");
goto end;
}
psk_identity = "JPAKE";
if (cipher)
{
BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
goto end;
}
cipher = "PSK";
}
#endif
SSL_load_error_strings();
OpenSSL_add_ssl_algorithms();
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine_id, 1);
#endif
if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
{
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (s_key_file == NULL)
s_key_file = s_cert_file;
#ifndef OPENSSL_NO_TLSEXT
if (s_key_file2 == NULL)
s_key_file2 = s_cert_file2;
#endif
if (nocert == 0)
{
s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
"server certificate private key file");
if (!s_key)
{
ERR_print_errors(bio_err);
goto end;
}
s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
NULL, e, "server certificate file");
if (!s_cert)
{
ERR_print_errors(bio_err);
goto end;
}
#ifndef OPENSSL_NO_TLSEXT
if (tlsextcbp.servername)
{
s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
"second server certificate private key file");
if (!s_key2)
{
ERR_print_errors(bio_err);
goto end;
}
s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
NULL, e, "second server certificate file");
if (!s_cert2)
{
ERR_print_errors(bio_err);
goto end;
}
}
# ifndef OPENSSL_NO_NEXTPROTONEG
if (next_proto_neg_in)
{
unsigned short len;
next_proto.data = next_protos_parse(&len,
next_proto_neg_in);
if (next_proto.data == NULL)
goto end;
next_proto.len = len;
}
else
{
next_proto.data = NULL;
}
# endif
#endif
}
if (s_dcert_file)
{
if (s_dkey_file == NULL)
s_dkey_file = s_dcert_file;
s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
0, dpass, e,
"second certificate private key file");
if (!s_dkey)
{
ERR_print_errors(bio_err);
goto end;
}
s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
NULL, e, "second server certificate file");
if (!s_dcert)
{
ERR_print_errors(bio_err);
goto end;
}
}
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
&& !RAND_status())
{
BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
}
if (inrand != NULL)
BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
if (bio_s_out == NULL)
{
if (s_quiet && !s_debug && !s_msg)
{
bio_s_out=BIO_new(BIO_s_null());
}
else
{
if (bio_s_out == NULL)
bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
}
}
#if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
if (nocert)
#endif
{
s_cert_file=NULL;
s_key_file=NULL;
s_dcert_file=NULL;
s_dkey_file=NULL;
#ifndef OPENSSL_NO_TLSEXT
s_cert_file2=NULL;
s_key_file2=NULL;
#endif
}
ctx=SSL_CTX_new(meth);
if (ctx == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (session_id_prefix)
{
if(strlen(session_id_prefix) >= 32)
BIO_printf(bio_err,
"warning: id_prefix is too long, only one new session will be possible\n");
else if(strlen(session_id_prefix) >= 16)
BIO_printf(bio_err,
"warning: id_prefix is too long if you use SSLv2\n");
if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
{
BIO_printf(bio_err,"error setting 'id_prefix'\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
}
SSL_CTX_set_quiet_shutdown(ctx,1);
if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
SSL_CTX_set_options(ctx,off);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
*/
if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
if (no_cache)
SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
else
SSL_CTX_sess_set_cache_size(ctx,128);
if (srtp_profiles != NULL)
SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
#if 0
if (cipher == NULL) cipher=getenv("SSL_CIPHER");
#endif
#if 0
if (s_cert_file == NULL)
{
BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
goto end;
}
#endif
if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx)))
{
/* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
ERR_print_errors(bio_err);
/* goto end; */
}
if (vpm)
SSL_CTX_set1_param(ctx, vpm);
#ifndef OPENSSL_NO_TLSEXT
if (s_cert2)
{
ctx2=SSL_CTX_new(meth);
if (ctx2 == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
}
if (ctx2)
{
BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
if (session_id_prefix)
{
if(strlen(session_id_prefix) >= 32)
BIO_printf(bio_err,
"warning: id_prefix is too long, only one new session will be possible\n");
else if(strlen(session_id_prefix) >= 16)
BIO_printf(bio_err,
"warning: id_prefix is too long if you use SSLv2\n");
if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
{
BIO_printf(bio_err,"error setting 'id_prefix'\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
}
SSL_CTX_set_quiet_shutdown(ctx2,1);
if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
SSL_CTX_set_options(ctx2,off);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
*/
if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
if (no_cache)
SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
else
SSL_CTX_sess_set_cache_size(ctx2,128);
if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx2)))
{
ERR_print_errors(bio_err);
}
if (vpm)
SSL_CTX_set1_param(ctx2, vpm);
}
# ifndef OPENSSL_NO_NEXTPROTONEG
if (next_proto.data)
SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
# endif
#endif
#ifndef OPENSSL_NO_DH
if (!no_dhe)
{
DH *dh=NULL;
if (dhfile)
dh = load_dh_param(dhfile);
else if (s_cert_file)
dh = load_dh_param(s_cert_file);
if (dh != NULL)
{
BIO_printf(bio_s_out,"Setting temp DH parameters\n");
}
else
{
BIO_printf(bio_s_out,"Using default temp DH parameters\n");
dh=get_dh512();
}
(void)BIO_flush(bio_s_out);
SSL_CTX_set_tmp_dh(ctx,dh);
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
{
if (!dhfile)
{
DH *dh2=load_dh_param(s_cert_file2);
if (dh2 != NULL)
{
BIO_printf(bio_s_out,"Setting temp DH parameters\n");
(void)BIO_flush(bio_s_out);
DH_free(dh);
dh = dh2;
}
}
SSL_CTX_set_tmp_dh(ctx2,dh);
}
#endif
DH_free(dh);
}
#endif
#ifndef OPENSSL_NO_ECDH
if (!no_ecdhe)
{
EC_KEY *ecdh=NULL;
if (named_curve)
{
int nid = OBJ_sn2nid(named_curve);
if (nid == 0)
{
BIO_printf(bio_err, "unknown curve name (%s)\n",
named_curve);
goto end;
}
ecdh = EC_KEY_new_by_curve_name(nid);
if (ecdh == NULL)
{
BIO_printf(bio_err, "unable to create curve (%s)\n",
named_curve);
goto end;
}
}
if (ecdh != NULL)
{
BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
}
else
{
BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
if (ecdh == NULL)
{
BIO_printf(bio_err, "unable to create curve (nistp256)\n");
goto end;
}
}
(void)BIO_flush(bio_s_out);
SSL_CTX_set_tmp_ecdh(ctx,ecdh);
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
#endif
EC_KEY_free(ecdh);
}
#endif
if (!set_cert_key_stuff(ctx,s_cert,s_key))
goto end;
#ifndef OPENSSL_NO_TLSEXT
if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
goto end;
#endif
if (s_dcert != NULL)
{
if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
goto end;
}
#ifndef OPENSSL_NO_RSA
#if 1
if (!no_tmp_rsa)
{
SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
#endif
}
#else
if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
{
RSA *rsa;
BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
BIO_flush(bio_s_out);
rsa=RSA_generate_key(512,RSA_F4,NULL);
if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
{
ERR_print_errors(bio_err);
goto end;
}
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
{
if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
{
ERR_print_errors(bio_err);
goto end;
}
}
#endif
RSA_free(rsa);
BIO_printf(bio_s_out,"\n");
}
#endif
#endif
#ifndef OPENSSL_NO_PSK
#ifdef OPENSSL_NO_JPAKE
if (psk_key != NULL)
#else
if (psk_key != NULL || jpake_secret)
#endif
{
if (s_debug)
BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
}
if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
{
BIO_printf(bio_err,"error setting PSK identity hint to context\n");
ERR_print_errors(bio_err);
goto end;
}
#endif
if (cipher != NULL)
{
if(!SSL_CTX_set_cipher_list(ctx,cipher))
{
BIO_printf(bio_err,"error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
#ifndef OPENSSL_NO_TLSEXT
if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
{
BIO_printf(bio_err,"error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
#endif
}
SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
sizeof s_server_session_id_context);
/* Set DTLS cookie generation and verification callbacks */
SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
{
SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
sizeof s_server_session_id_context);
tlsextcbp.biodebug = bio_s_out;
SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
}
#endif
#ifndef OPENSSL_NO_SRP
if (srp_verifier_file != NULL)
{
srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
srp_callback_parm.user = NULL;
srp_callback_parm.login = NULL;
if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
{
BIO_printf(bio_err,
"Cannot initialize SRP verifier file \"%s\":ret=%d\n",
srp_verifier_file, ret);
goto end;
}
SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
}
else
#endif
if (CAfile != NULL)
{
SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
#ifndef OPENSSL_NO_TLSEXT
if (ctx2)
SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
#endif
}
BIO_printf(bio_s_out,"ACCEPT\n");
(void)BIO_flush(bio_s_out);
if (www)
do_server(port,socket_type,&accept_socket,www_body, context);
else
do_server(port,socket_type,&accept_socket,sv_body, context);
print_stats(bio_s_out,ctx);
ret=0;
end:
if (ctx != NULL) SSL_CTX_free(ctx);
if (s_cert)
X509_free(s_cert);
if (s_dcert)
X509_free(s_dcert);
if (s_key)
EVP_PKEY_free(s_key);
if (s_dkey)
EVP_PKEY_free(s_dkey);
if (pass)
OPENSSL_free(pass);
if (dpass)
OPENSSL_free(dpass);
#ifndef OPENSSL_NO_TLSEXT
if (ctx2 != NULL) SSL_CTX_free(ctx2);
if (s_cert2)
X509_free(s_cert2);
if (s_key2)
EVP_PKEY_free(s_key2);
#endif
if (bio_s_out != NULL)
{
BIO_free(bio_s_out);
bio_s_out=NULL;
}
apps_shutdown();
OPENSSL_EXIT(ret);
}
static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
{
BIO_printf(bio,"%4ld items in the session cache\n",
SSL_CTX_sess_number(ssl_ctx));
BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
SSL_CTX_sess_connect(ssl_ctx));
BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
SSL_CTX_sess_connect_renegotiate(ssl_ctx));
BIO_printf(bio,"%4ld client connects that finished\n",
SSL_CTX_sess_connect_good(ssl_ctx));
BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
SSL_CTX_sess_accept(ssl_ctx));
BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
SSL_CTX_sess_accept_renegotiate(ssl_ctx));
BIO_printf(bio,"%4ld server accepts that finished\n",
SSL_CTX_sess_accept_good(ssl_ctx));
BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
SSL_CTX_sess_cache_full(ssl_ctx),
SSL_CTX_sess_get_cache_size(ssl_ctx));
}
static int sv_body(char *hostname, int s, unsigned char *context)
{
char *buf=NULL;
fd_set readfds;
int ret=1,width;
int k,i;
unsigned long l;
SSL *con=NULL;
BIO *sbio;
#ifndef OPENSSL_NO_KRB5
KSSL_CTX *kctx;
#endif
struct timeval timeout;
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
struct timeval tv;
#else
struct timeval *timeoutp;
#endif
if ((buf=OPENSSL_malloc(bufsize)) == NULL)
{
BIO_printf(bio_err,"out of memory\n");
goto err;
}
#ifdef FIONBIO
if (s_nbio)
{
unsigned long sl=1;
if (!s_quiet)
BIO_printf(bio_err,"turning on non blocking io\n");
if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
ERR_print_errors(bio_err);
}
#endif
if (con == NULL) {
con=SSL_new(ctx);
#ifndef OPENSSL_NO_TLSEXT
if (s_tlsextdebug)
{
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
if (s_tlsextstatus)
{
SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
tlscstatp.err = bio_err;
SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
}
#endif
#ifndef OPENSSL_NO_KRB5
if ((kctx = kssl_ctx_new()) != NULL)
{
SSL_set0_kssl_ctx(con, kctx);
kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
}
#endif /* OPENSSL_NO_KRB5 */
if(context)
SSL_set_session_id_context(con, context,
strlen((char *)context));
}
SSL_clear(con);
#if 0
#ifdef TLSEXT_TYPE_opaque_prf_input
SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
#endif
#endif
if (SSL_version(con) == DTLS1_VERSION)
{
sbio=BIO_new_dgram(s,BIO_NOCLOSE);
if (enable_timeouts)
{
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_RCV_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_SND_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
}
if (socket_mtu > 28)
{
SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
SSL_set_mtu(con, socket_mtu - 28);
}
else
/* want to do MTU discovery */
BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
/* turn on cookie exchange */
SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
}
else
sbio=BIO_new_socket(s,BIO_NOCLOSE);
if (s_nbio_test)
{
BIO *test;
test=BIO_new(BIO_f_nbio_test());
sbio=BIO_push(test,sbio);
}
#ifndef OPENSSL_NO_JPAKE
if(jpake_secret)
jpake_server_auth(bio_s_out, sbio, jpake_secret);
#endif
SSL_set_bio(con,sbio,sbio);
SSL_set_accept_state(con);
/* SSL_set_fd(con,s); */
if (s_debug)
{
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
}
if (s_msg)
{
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_out);
}
#ifndef OPENSSL_NO_TLSEXT
if (s_tlsextdebug)
{
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
#endif
width=s+1;
for (;;)
{
int read_from_terminal;
int read_from_sslcon;
read_from_terminal = 0;
read_from_sslcon = SSL_pending(con);
if (!read_from_sslcon)
{
FD_ZERO(&readfds);
#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
openssl_fdset(fileno(stdin),&readfds);
#endif
openssl_fdset(s,&readfds);
/* Note: under VMS with SOCKETSHR the second parameter is
* currently of type (int *) whereas under other systems
* it is (void *) if you don't have a cast it will choke
* the compiler: if you do have a cast then you can either
* go for (int *) or (void *).
*/
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
/* Under DOS (non-djgpp) and Windows we can't select on stdin: only
* on sockets. As a workaround we timeout the select every
* second and check for any keypress. In a proper Windows
* application we wouldn't do this because it is inefficient.
*/
tv.tv_sec = 1;
tv.tv_usec = 0;
i=select(width,(void *)&readfds,NULL,NULL,&tv);
if((i < 0) || (!i && !_kbhit() ) )continue;
if(_kbhit())
read_from_terminal = 1;
#elif defined(OPENSSL_SYS_BEOS_R5)
/* Under BeOS-R5 the situation is similar to DOS */
tv.tv_sec = 1;
tv.tv_usec = 0;
(void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
i=select(width,(void *)&readfds,NULL,NULL,&tv);
if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
continue;
if (read(fileno(stdin), buf, 0) >= 0)
read_from_terminal = 1;
(void)fcntl(fileno(stdin), F_SETFL, 0);
#else
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
timeoutp = &timeout;
else
timeoutp = NULL;
i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
{
BIO_printf(bio_err,"TIMEOUT occured\n");
}
if (i <= 0) continue;
if (FD_ISSET(fileno(stdin),&readfds))
read_from_terminal = 1;
#endif
if (FD_ISSET(s,&readfds))
read_from_sslcon = 1;
}
if (read_from_terminal)
{
if (s_crlf)
{
int j, lf_num;
i=raw_read_stdin(buf, bufsize/2);
lf_num = 0;
/* both loops are skipped when i <= 0 */
for (j = 0; j < i; j++)
if (buf[j] == '\n')
lf_num++;
for (j = i-1; j >= 0; j--)
{
buf[j+lf_num] = buf[j];
if (buf[j] == '\n')
{
lf_num--;
i++;
buf[j+lf_num] = '\r';
}
}
assert(lf_num == 0);
}
else
i=raw_read_stdin(buf,bufsize);
if (!s_quiet)
{
if ((i <= 0) || (buf[0] == 'Q'))
{
BIO_printf(bio_s_out,"DONE\n");
SHUTDOWN(s);
close_accept_socket();
ret= -11;
goto err;
}
if ((i <= 0) || (buf[0] == 'q'))
{
BIO_printf(bio_s_out,"DONE\n");
if (SSL_version(con) != DTLS1_VERSION)
SHUTDOWN(s);
/* close_accept_socket();
ret= -11;*/
goto err;
}
#ifndef OPENSSL_NO_HEARTBEATS
if ((buf[0] == 'B') &&
((buf[1] == '\n') || (buf[1] == '\r')))
{
BIO_printf(bio_err,"HEARTBEATING\n");
SSL_heartbeat(con);
i=0;
continue;
}
#endif
if ((buf[0] == 'r') &&
((buf[1] == '\n') || (buf[1] == '\r')))
{
SSL_renegotiate(con);
i=SSL_do_handshake(con);
printf("SSL_do_handshake -> %d\n",i);
i=0; /*13; */
continue;
/* strcpy(buf,"server side RE-NEGOTIATE\n"); */
}
if ((buf[0] == 'R') &&
((buf[1] == '\n') || (buf[1] == '\r')))
{
SSL_set_verify(con,
SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
SSL_renegotiate(con);
i=SSL_do_handshake(con);
printf("SSL_do_handshake -> %d\n",i);
i=0; /* 13; */
continue;
/* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
}
if (buf[0] == 'P')
{
static const char *str="Lets print some clear text\n";
BIO_write(SSL_get_wbio(con),str,strlen(str));
}
if (buf[0] == 'S')
{
print_stats(bio_s_out,SSL_get_SSL_CTX(con));
}
}
#ifdef CHARSET_EBCDIC
ebcdic2ascii(buf,buf,i);
#endif
l=k=0;
for (;;)
{
/* should do a select for the write */
#ifdef RENEG
{ static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
#endif
k=SSL_write(con,&(buf[l]),(unsigned int)i);
#ifndef OPENSSL_NO_SRP
while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
{
BIO_printf(bio_s_out,"LOOKUP renego during write\n");
srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
else
BIO_printf(bio_s_out,"LOOKUP not successful\n");
k=SSL_write(con,&(buf[l]),(unsigned int)i);
}
#endif
switch (SSL_get_error(con,k))
{
case SSL_ERROR_NONE:
break;
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_s_out,"Write BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
BIO_printf(bio_s_out,"ERROR\n");
ERR_print_errors(bio_err);
ret=1;
goto err;
/* break; */
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_s_out,"DONE\n");
ret=1;
goto err;
}
l+=k;
i-=k;
if (i <= 0) break;
}
}
if (read_from_sslcon)
{
if (!SSL_is_init_finished(con))
{
i=init_ssl_connection(con);
if (i < 0)
{
ret=0;
goto err;
}
else if (i == 0)
{
ret=1;
goto err;
}
}
else
{
again:
i=SSL_read(con,(char *)buf,bufsize);
#ifndef OPENSSL_NO_SRP
while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
{
BIO_printf(bio_s_out,"LOOKUP renego during read\n");
srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
else
BIO_printf(bio_s_out,"LOOKUP not successful\n");
i=SSL_read(con,(char *)buf,bufsize);
}
#endif
switch (SSL_get_error(con,i))
{
case SSL_ERROR_NONE:
#ifdef CHARSET_EBCDIC
ascii2ebcdic(buf,buf,i);
#endif
raw_write_stdout(buf,
(unsigned int)i);
if (SSL_pending(con)) goto again;
break;
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_READ:
BIO_printf(bio_s_out,"Read BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
BIO_printf(bio_s_out,"ERROR\n");
ERR_print_errors(bio_err);
ret=1;
goto err;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_s_out,"DONE\n");
ret=1;
goto err;
}
}
}
}
err:
if (con != NULL)
{
BIO_printf(bio_s_out,"shutting down SSL\n");
#if 1
SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
#else
SSL_shutdown(con);
#endif
SSL_free(con);
}
BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
if (buf != NULL)
{
OPENSSL_cleanse(buf,bufsize);
OPENSSL_free(buf);
}
if (ret >= 0)
BIO_printf(bio_s_out,"ACCEPT\n");
return(ret);
}
static void close_accept_socket(void)
{
BIO_printf(bio_err,"shutdown accept socket\n");
if (accept_socket >= 0)
{
SHUTDOWN2(accept_socket);
}
}
static int init_ssl_connection(SSL *con)
{
int i;
const char *str;
X509 *peer;
long verify_error;
MS_STATIC char buf[BUFSIZ];
#ifndef OPENSSL_NO_KRB5
char *client_princ;
#endif
#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
const unsigned char *next_proto_neg;
unsigned next_proto_neg_len;
#endif
unsigned char *exportedkeymat;
i=SSL_accept(con);
#ifndef OPENSSL_NO_SRP
while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
{
BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
else
BIO_printf(bio_s_out,"LOOKUP not successful\n");
i=SSL_accept(con);
}
#endif
if (i <= 0)
{
if (BIO_sock_should_retry(i))
{
BIO_printf(bio_s_out,"DELAY\n");
return(1);
}
BIO_printf(bio_err,"ERROR\n");
verify_error=SSL_get_verify_result(con);
if (verify_error != X509_V_OK)
{
BIO_printf(bio_err,"verify error:%s\n",
X509_verify_cert_error_string(verify_error));
}
else
ERR_print_errors(bio_err);
return(0);
}
PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
peer=SSL_get_peer_certificate(con);
if (peer != NULL)
{
BIO_printf(bio_s_out,"Client certificate\n");
PEM_write_bio_X509(bio_s_out,peer);
X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
BIO_printf(bio_s_out,"subject=%s\n",buf);
X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
BIO_printf(bio_s_out,"issuer=%s\n",buf);
X509_free(peer);
}
if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
if (next_proto_neg)
{
BIO_printf(bio_s_out,"NEXTPROTO is ");
BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
BIO_printf(bio_s_out, "\n");
}
#endif
{
SRTP_PROTECTION_PROFILE *srtp_profile
= SSL_get_selected_srtp_profile(con);
if(srtp_profile)
BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
srtp_profile->name);
}
if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
TLS1_FLAGS_TLS_PADDING_BUG)
BIO_printf(bio_s_out,
"Peer has incorrect TLSv1 block padding\n");
#ifndef OPENSSL_NO_KRB5
client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
if (client_princ != NULL)
{
BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
client_princ);
}
#endif /* OPENSSL_NO_KRB5 */
BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
if (keymatexportlabel != NULL)
{
BIO_printf(bio_s_out, "Keying material exporter:\n");
BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
BIO_printf(bio_s_out, " Length: %i bytes\n",
keymatexportlen);
exportedkeymat = OPENSSL_malloc(keymatexportlen);
if (exportedkeymat != NULL)
{
if (!SSL_export_keying_material(con, exportedkeymat,
keymatexportlen,
keymatexportlabel,
strlen(keymatexportlabel),
NULL, 0, 0))
{
BIO_printf(bio_s_out, " Error\n");
}
else
{
BIO_printf(bio_s_out, " Keying material: ");
for (i=0; i<keymatexportlen; i++)
BIO_printf(bio_s_out, "%02X",
exportedkeymat[i]);
BIO_printf(bio_s_out, "\n");
}
OPENSSL_free(exportedkeymat);
}
}
return(1);
}
#ifndef OPENSSL_NO_DH
static DH *load_dh_param(const char *dhfile)
{
DH *ret=NULL;
BIO *bio;
if ((bio=BIO_new_file(dhfile,"r")) == NULL)
goto err;
ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
err:
if (bio != NULL) BIO_free(bio);
return(ret);
}
#endif
#ifndef OPENSSL_NO_KRB5
char *client_princ;
#endif
#if 0
static int load_CA(SSL_CTX *ctx, char *file)
{
FILE *in;
X509 *x=NULL;
if ((in=fopen(file,"r")) == NULL)
return(0);
for (;;)
{
if (PEM_read_X509(in,&x,NULL) == NULL)
break;
SSL_CTX_add_client_CA(ctx,x);
}
if (x != NULL) X509_free(x);
fclose(in);
return(1);
}
#endif
static int www_body(char *hostname, int s, unsigned char *context)
{
char *buf=NULL;
int ret=1;
int i,j,k,dot;
SSL *con;
const SSL_CIPHER *c;
BIO *io,*ssl_bio,*sbio;
#ifndef OPENSSL_NO_KRB5
KSSL_CTX *kctx;
#endif
buf=OPENSSL_malloc(bufsize);
if (buf == NULL) return(0);
io=BIO_new(BIO_f_buffer());
ssl_bio=BIO_new(BIO_f_ssl());
if ((io == NULL) || (ssl_bio == NULL)) goto err;
#ifdef FIONBIO
if (s_nbio)
{
unsigned long sl=1;
if (!s_quiet)
BIO_printf(bio_err,"turning on non blocking io\n");
if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
ERR_print_errors(bio_err);
}
#endif
/* lets make the output buffer a reasonable size */
if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
if ((con=SSL_new(ctx)) == NULL) goto err;
#ifndef OPENSSL_NO_TLSEXT
if (s_tlsextdebug)
{
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
#endif
#ifndef OPENSSL_NO_KRB5
if ((kctx = kssl_ctx_new()) != NULL)
{
kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
}
#endif /* OPENSSL_NO_KRB5 */
if(context) SSL_set_session_id_context(con, context,
strlen((char *)context));
sbio=BIO_new_socket(s,BIO_NOCLOSE);
if (s_nbio_test)
{
BIO *test;
test=BIO_new(BIO_f_nbio_test());
sbio=BIO_push(test,sbio);
}
SSL_set_bio(con,sbio,sbio);
SSL_set_accept_state(con);
/* SSL_set_fd(con,s); */
BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
BIO_push(io,ssl_bio);
#ifdef CHARSET_EBCDIC
io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
#endif
if (s_debug)
{
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
}
if (s_msg)
{
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_out);
}
for (;;)
{
if (hack)
{
i=SSL_accept(con);
#ifndef OPENSSL_NO_SRP
while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
{
BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
else
BIO_printf(bio_s_out,"LOOKUP not successful\n");
i=SSL_accept(con);
}
#endif
switch (SSL_get_error(con,i))
{
case SSL_ERROR_NONE:
break;
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_X509_LOOKUP:
continue;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
case SSL_ERROR_ZERO_RETURN:
ret=1;
goto err;
/* break; */
}
SSL_renegotiate(con);
SSL_write(con,NULL,0);
}
i=BIO_gets(io,buf,bufsize-1);
if (i < 0) /* error */
{
if (!BIO_should_retry(io))
{
if (!s_quiet)
ERR_print_errors(bio_err);
goto err;
}
else
{
BIO_printf(bio_s_out,"read R BLOCK\n");
#if defined(OPENSSL_SYS_NETWARE)
delay(1000);
#elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
sleep(1);
#endif
continue;
}
}
else if (i == 0) /* end of input */
{
ret=1;
goto end;
}
/* else we have data */
if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
{
char *p;
X509 *peer;
STACK_OF(SSL_CIPHER) *sk;
static const char *space=" ";
BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
BIO_puts(io,"<pre>\n");
/* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
BIO_puts(io,"\n");
for (i=0; i<local_argc; i++)
{
BIO_puts(io,local_argv[i]);
BIO_write(io," ",1);
}
BIO_puts(io,"\n");
/* The following is evil and should not really
* be done */
BIO_printf(io,"Ciphers supported in s_server binary\n");
sk=SSL_get_ciphers(con);
j=sk_SSL_CIPHER_num(sk);
for (i=0; i<j; i++)
{
c=sk_SSL_CIPHER_value(sk,i);
BIO_printf(io,"%-11s:%-25s",
SSL_CIPHER_get_version(c),
SSL_CIPHER_get_name(c));
if ((((i+1)%2) == 0) && (i+1 != j))
BIO_puts(io,"\n");
}
BIO_puts(io,"\n");
p=SSL_get_shared_ciphers(con,buf,bufsize);
if (p != NULL)
{
BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
j=i=0;
while (*p)
{
if (*p == ':')
{
BIO_write(io,space,26-j);
i++;
j=0;
BIO_write(io,((i%3)?" ":"\n"),1);
}
else
{
BIO_write(io,p,1);
j++;
}
p++;
}
BIO_puts(io,"\n");
}
BIO_printf(io,(SSL_cache_hit(con)
?"---\nReused, "
:"---\nNew, "));
c=SSL_get_current_cipher(con);
BIO_printf(io,"%s, Cipher is %s\n",
SSL_CIPHER_get_version(c),
SSL_CIPHER_get_name(c));
SSL_SESSION_print(io,SSL_get_session(con));
BIO_printf(io,"---\n");
print_stats(io,SSL_get_SSL_CTX(con));
BIO_printf(io,"---\n");
peer=SSL_get_peer_certificate(con);
if (peer != NULL)
{
BIO_printf(io,"Client certificate\n");
X509_print(io,peer);
PEM_write_bio_X509(io,peer);
}
else
BIO_puts(io,"no client certificate available\n");
BIO_puts(io,"</BODY></HTML>\r\n\r\n");
break;
}
else if ((www == 2 || www == 3)
&& (strncmp("GET /",buf,5) == 0))
{
BIO *file;
char *p,*e;
static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
/* skip the '/' */
p= &(buf[5]);
dot = 1;
for (e=p; *e != '\0'; e++)
{
if (e[0] == ' ')
break;
switch (dot)
{
case 1:
dot = (e[0] == '.') ? 2 : 0;
break;
case 2:
dot = (e[0] == '.') ? 3 : 0;
break;
case 3:
dot = (e[0] == '/') ? -1 : 0;
break;
}
if (dot == 0)
dot = (e[0] == '/') ? 1 : 0;
}
dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
if (*e == '\0')
{
BIO_puts(io,text);
BIO_printf(io,"'%s' is an invalid file name\r\n",p);
break;
}
*e='\0';
if (dot)
{
BIO_puts(io,text);
BIO_printf(io,"'%s' contains '..' reference\r\n",p);
break;
}
if (*p == '/')
{
BIO_puts(io,text);
BIO_printf(io,"'%s' is an invalid path\r\n",p);
break;
}
#if 0
/* append if a directory lookup */
if (e[-1] == '/')
strcat(p,"index.html");
#endif
/* if a directory, do the index thang */
if (app_isdir(p)>0)
{
#if 0 /* must check buffer size */
strcat(p,"/index.html");
#else
BIO_puts(io,text);
BIO_printf(io,"'%s' is a directory\r\n",p);
break;
#endif
}
if ((file=BIO_new_file(p,"r")) == NULL)
{
BIO_puts(io,text);
BIO_printf(io,"Error opening '%s'\r\n",p);
ERR_print_errors(io);
break;
}
if (!s_quiet)
BIO_printf(bio_err,"FILE:%s\n",p);
if (www == 2)
{
i=strlen(p);
if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
else
BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
}
/* send the file */
for (;;)
{
i=BIO_read(file,buf,bufsize);
if (i <= 0) break;
#ifdef RENEG
total_bytes+=i;
fprintf(stderr,"%d\n",i);
if (total_bytes > 3*1024)
{
total_bytes=0;
fprintf(stderr,"RENEGOTIATE\n");
SSL_renegotiate(con);
}
#endif
for (j=0; j<i; )
{
#ifdef RENEG
{ static count=0; if (++count == 13) { SSL_renegotiate(con); } }
#endif
k=BIO_write(io,&(buf[j]),i-j);
if (k <= 0)
{
if (!BIO_should_retry(io))
goto write_error;
else
{
BIO_printf(bio_s_out,"rwrite W BLOCK\n");
}
}
else
{
j+=k;
}
}
}
write_error:
BIO_free(file);
break;
}
}
for (;;)
{
i=(int)BIO_flush(io);
if (i <= 0)
{
if (!BIO_should_retry(io))
break;
}
else
break;
}
end:
#if 1
/* make sure we re-use sessions */
SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
#else
/* This kills performance */
/* SSL_shutdown(con); A shutdown gets sent in the
* BIO_free_all(io) procession */
#endif
err:
if (ret >= 0)
BIO_printf(bio_s_out,"ACCEPT\n");
if (buf != NULL) OPENSSL_free(buf);
if (io != NULL) BIO_free_all(io);
/* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
return(ret);
}
#ifndef OPENSSL_NO_RSA
static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
{
BIGNUM *bn = NULL;
static RSA *rsa_tmp=NULL;
if (!rsa_tmp && ((bn = BN_new()) == NULL))
BIO_printf(bio_err,"Allocation error in generating RSA key\n");
if (!rsa_tmp && bn)
{
if (!s_quiet)
{
BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
(void)BIO_flush(bio_err);
}
if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
!RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
{
if(rsa_tmp) RSA_free(rsa_tmp);
rsa_tmp = NULL;
}
if (!s_quiet)
{
BIO_printf(bio_err,"\n");
(void)BIO_flush(bio_err);
}
BN_free(bn);
}
return(rsa_tmp);
}
#endif
#define MAX_SESSION_ID_ATTEMPTS 10
static int generate_session_id(const SSL *ssl, unsigned char *id,
unsigned int *id_len)
{
unsigned int count = 0;
do {
RAND_pseudo_bytes(id, *id_len);
/* Prefix the session_id with the required prefix. NB: If our
* prefix is too long, clip it - but there will be worse effects
* anyway, eg. the server could only possibly create 1 session
* ID (ie. the prefix!) so all future session negotiations will
* fail due to conflicts. */
memcpy(id, session_id_prefix,
(strlen(session_id_prefix) < *id_len) ?
strlen(session_id_prefix) : *id_len);
}
while(SSL_has_matching_session_id(ssl, id, *id_len) &&
(++count < MAX_SESSION_ID_ATTEMPTS));
if(count >= MAX_SESSION_ID_ATTEMPTS)
return 0;
return 1;
}