File: [local] / src / usr.bin / openssl / s_server.c (download)
Revision 1.2, Mon Oct 13 02:39:09 2014 UTC (9 years, 7 months ago) by bcook
Branch: MAIN
Changes since 1.1: +3 -7 lines
Use O_NONBLOCK over FIONBIO.
Prefer this because it is the POSIX standard and has consistent behavior
across platforms.
Use BIO_socket_nbio consistently across the tree.
from Jonas 'Sortie' Termansen, ok deraadt@
|
/* $OpenBSD: s_server.c,v 1.2 2014/10/13 02:39:09 bcook Exp $ */
/* 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 <sys/types.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include "apps.h"
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/lhash.h>
#include <openssl/ocsp.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
#include <openssl/rsa.h>
#include "s_apps.h"
#include "timeouts.h"
static RSA *tmp_rsa_cb(SSL * s, int is_export, int keylength);
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
static void s_server_init(void);
#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);*/
#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
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;
static int s_nbio = 0;
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
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
s_nbio = 0;
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
}
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 appended 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");
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");
BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
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 - Inhibit printing of session and certificate information\n");
BIO_printf(bio_err, " -no_tmp_rsa - Do not generate a tmp RSA key\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
BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n");
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");
#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");
#ifndef OPENSSL_NO_NEXTPROTONEG
BIO_printf(bio_err, " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
#endif
#ifndef OPENSSL_NO_SRTP
BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
#endif
#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;
#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
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 (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) {
free(host);
free(path);
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 s_server_main(int, char **);
#ifndef OPENSSL_NO_SRTP
static char *srtp_profiles = NULL;
#endif
int
s_server_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;
char *named_curve = NULL;
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;
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;
const char *errstr = NULL;
#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
meth = SSLv23_server_method();
local_argc = argc;
local_argv = argv;
s_server_init();
verify_depth = 0;
s_nbio = 0;
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 = strtonum(*(++argv), 0, INT_MAX, &errstr);
if (errstr)
goto bad;
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 = strtonum(*(++argv), 0, INT_MAX, &errstr);
if (errstr)
goto bad;
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);
}
else if (strcmp(*argv, "-named_curve") == 0) {
if (--argc < 1)
goto bad;
named_curve = *(++argv);
}
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)
; /* no-op */
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);
}
else if (strcmp(*argv, "-nbio") == 0) {
s_nbio = 1;
}
else if (strcmp(*argv, "-nbio_test") == 0) {
s_nbio = 1;
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 = strtonum(*(++argv), 0, INT_MAX, &errstr);
if (errstr)
goto bad;
} 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;
}
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
else if (strcmp(*argv, "-ssl3") == 0) {
meth = SSLv3_server_method();
} 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();
}
#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 = strtonum(*(++argv), 0, LONG_MAX, &errstr);
if (errstr)
goto bad;
} 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
#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
#ifndef OPENSSL_NO_SRTP
else if (strcmp(*argv, "-use_srtp") == 0) {
if (--argc < 1)
goto bad;
srtp_profiles = *(++argv);
}
#endif
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 = strtonum(*(++argv), 1, INT_MAX, &errstr);
if (errstr)
goto bad;
} else {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badop = 1;
break;
}
argc--;
argv++;
}
if (badop) {
bad:
if (errstr)
BIO_printf(bio_err, "invalid argument %s: %s\n",
*argv, errstr);
else
sv_usage();
goto end;
}
#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;
}
}
#endif
}
#if !defined(OPENSSL_NO_TLSEXT) && !defined(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
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 (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 (nocert)
{
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);
#ifndef OPENSSL_NO_SRTP
if (srtp_profiles != NULL)
SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
#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
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);
}
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;
}
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
}
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
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);
free(pass);
free(dpass);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
#ifndef OPENSSL_NO_TLSEXT
free(tlscstatp.host);
free(tlscstatp.port);
free(tlscstatp.path);
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;
}
return (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;
struct timeval timeout;
struct timeval *timeoutp;
if ((buf = malloc(bufsize)) == NULL) {
BIO_printf(bio_err, "out of memory\n");
goto err;
}
if (s_nbio) {
if (!s_quiet)
BIO_printf(bio_err, "turning on non blocking io\n");
if (!BIO_socket_nbio(s, 1))
ERR_print_errors(bio_err);
}
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
if (context)
SSL_set_session_id_context(con, context,
strlen((char *) context));
}
SSL_clear(con);
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);
}
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);
FD_SET(fileno(stdin), &readfds);
FD_SET(s, &readfds);
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
timeoutp = &timeout;
else
timeoutp = NULL;
i = select(width, &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;
if (FD_ISSET(s, &readfds))
read_from_sslcon = 1;
}
if (read_from_terminal) {
if (s_crlf) {
int j, lf_num;
i = read(fileno(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 = read(fileno(stdin), buf, bufsize);
if (!s_quiet) {
if ((i <= 0) || (buf[0] == 'Q')) {
BIO_printf(bio_s_out, "DONE\n");
shutdown(s, SHUT_RD);
close(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, SHUT_RD);
close(s);
}
/*
* close_accept_socket(); ret= -11;
*/
goto err;
}
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));
}
}
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);
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);
switch (SSL_get_error(con, i)) {
case SSL_ERROR_NONE: {
int len, n;
for (len = 0; len < i;) {
do {
n = write(fileno(stdout), buf + len, i - len);
} while (n == -1 && errno == EINTR);
if (n < 0) {
BIO_printf(bio_s_out, "ERROR\n");
goto err;
}
len += n;
}
}
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");
SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
SSL_free(con);
}
BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
if (buf != NULL) {
OPENSSL_cleanse(buf, bufsize);
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) {
shutdown(accept_socket, SHUT_RDWR);
close(accept_socket);
}
}
static int
init_ssl_connection(SSL * con)
{
int i;
const char *str;
X509 *peer;
long verify_error;
char buf[BUFSIZ];
#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);
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
#ifndef OPENSSL_NO_SRTP
{
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);
}
#endif
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");
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 = 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");
}
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:
BIO_free(bio);
return (ret);
}
#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;
buf = 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;
if (s_nbio) {
if (!s_quiet)
BIO_printf(bio_err, "turning on non blocking io\n");
if (!BIO_socket_nbio(s, 1))
ERR_print_errors(bio_err);
}
/* 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
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);
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);
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");
sleep(1);
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, 11) == 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");
BIO_printf(io,
"Secure Renegotiation IS%s supported\n",
SSL_get_secure_renegotiation_support(con) ?
"" : " NOT");
/*
* 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 a directory, do the index thang */
if (app_isdir(p) > 0) {
BIO_puts(io, text);
BIO_printf(io, "'%s' is a directory\r\n", p);
break;
}
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:
/* make sure we re-use sessions */
SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
err:
if (ret >= 0)
BIO_printf(bio_s_out, "ACCEPT\n");
if (buf != NULL)
free(buf);
if (io != NULL)
BIO_free_all(io);
/* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
return (ret);
}
static RSA *
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);
}
#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;
}
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