File: [local] / src / usr.bin / openssl / s_server.c (download)
Revision 1.15, Sat Aug 22 16:36:05 2015 UTC (8 years, 9 months ago) by jsing
Branch: MAIN
Changes since 1.14: +1 -3 lines
Remove all duplicate prototypes for *_main functions (these are already
provided by progs.h). Also, move the FUNCTION type (and flags) into
openssl.c since that is the only place of use. Lastly, remove pointless
'extern' from the prototypes and use char **argv instead of char *argv[]
(the former is used elsewhere).
ok deraadt@ doug@
|
/* $OpenBSD: s_server.c,v 1.15 2015/08/22 16:36:05 jsing 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/socket.h>
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <poll.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/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 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);
#endif
static void s_server_init(void);
/* 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"
#define TEST_CERT2 "server2.pem"
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;
static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
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;
static SSL_CTX *ctx2 = NULL;
static int www = 0;
static BIO *bio_s_out = NULL;
static int s_debug = 0;
static int s_tlsextdebug = 0;
static int s_tlsextstatus = 0;
static int cert_status_cb(SSL * s, void *arg);
static int s_msg = 0;
static int s_quiet = 0;
static char *keymatexportlabel = NULL;
static int keymatexportlen = 20;
#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;
s_cert_file2 = TEST_CERT2;
s_key_file2 = NULL;
ctx2 = NULL;
s_nbio = 0;
s_nbio_test = 0;
ctx = NULL;
www = 0;
bio_s_out = NULL;
s_debug = 0;
s_msg = 0;
s_quiet = 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, " -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");
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, " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
BIO_printf(bio_err," -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n");
#ifndef OPENSSL_NO_SRTP
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;
/* 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;
}
/* 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;
}
/* This the context that we pass to alpn_cb */
typedef struct tlsextalpnctx_st {
unsigned char *data;
unsigned short len;
} tlsextalpnctx;
static int
alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
const unsigned char *in, unsigned int inlen, void *arg)
{
tlsextalpnctx *alpn_ctx = arg;
if (!s_quiet) {
/* We can assume that in is syntactically valid. */
unsigned i;
BIO_printf(bio_s_out,
"ALPN protocols advertised by the client: ");
for (i = 0; i < inlen; ) {
if (i)
BIO_write(bio_s_out, ", ", 2);
BIO_write(bio_s_out, &in[i + 1], in[i]);
i += in[i] + 1;
}
BIO_write(bio_s_out, "\n", 1);
}
if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data,
alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED)
return (SSL_TLSEXT_ERR_NOACK);
if (!s_quiet) {
BIO_printf(bio_s_out, "ALPN protocols selected: ");
BIO_write(bio_s_out, *out, *outlen);
BIO_write(bio_s_out, "\n", 1);
}
return (SSL_TLSEXT_ERR_OK);
}
#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_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;
EVP_PKEY *s_key2 = NULL;
X509 *s_cert2 = NULL;
tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
const char *next_proto_neg_in = NULL;
tlsextnextprotoctx next_proto = { NULL, 0 };
const char *alpn_in = NULL;
tlsextalpnctx alpn_ctx = { NULL, 0 };
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;
}
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;
}
}
else if (strcmp(*argv, "-msg") == 0) {
s_msg = 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-op. */
} 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;
} else if (strcmp(*argv, "-no_ticket") == 0) {
off |= SSL_OP_NO_TICKET;
} 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
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);
}
else if (strcmp(*argv, "-nextprotoneg") == 0) {
if (--argc < 1)
goto bad;
next_proto_neg_in = *(++argv);
}
else if (strcmp(*argv,"-alpn") == 0) {
if (--argc < 1)
goto bad;
alpn_in = *(++argv);
}
#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;
if (s_key_file2 == NULL)
s_key_file2 = s_cert_file2;
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;
}
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;
}
}
}
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;
}
alpn_ctx.data = NULL;
if (alpn_in) {
unsigned short len;
alpn_ctx.data = next_protos_parse(&len, alpn_in);
if (alpn_ctx.data == NULL)
goto end;
alpn_ctx.len = len;
}
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;
s_cert_file2 = NULL;
s_key_file2 = NULL;
}
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);
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);
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);
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);
}
if (next_proto.data)
SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
if (alpn_ctx.data)
SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
#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 auto DH parameters\n");
(void) BIO_flush(bio_s_out);
if (dh == NULL)
SSL_CTX_set_dh_auto(ctx, 1);
else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
BIO_printf(bio_err,
"Error setting temp DH parameters\n");
ERR_print_errors(bio_err);
DH_free(dh);
goto end;
}
if (ctx2) {
if (!dhfile) {
DH *dh2 = NULL;
if (s_cert_file2 != NULL)
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;
}
}
if (dh == NULL)
SSL_CTX_set_dh_auto(ctx2, 1);
else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
BIO_printf(bio_err,
"Error setting temp DH parameters\n");
ERR_print_errors(bio_err);
DH_free(dh);
goto end;
}
}
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);
if (ctx2)
SSL_CTX_set_tmp_ecdh(ctx2, ecdh);
EC_KEY_free(ecdh);
}
if (!set_cert_key_stuff(ctx, s_cert, s_key))
goto end;
if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2))
goto end;
if (s_dcert != NULL) {
if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
goto end;
}
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;
}
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;
}
}
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);
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);
}
if (CAfile != NULL) {
SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
if (ctx2)
SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
}
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);
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);
free(next_proto.data);
free(alpn_ctx.data);
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;
int ret = 1;
int k, i;
unsigned long l;
SSL *con = NULL;
BIO *sbio;
struct timeval timeout;
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);
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);
}
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);
}
if (s_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
for (;;) {
int read_from_terminal;
int read_from_sslcon;
struct pollfd pfd[2];
int ptimeout;
read_from_terminal = 0;
read_from_sslcon = SSL_pending(con);
if (!read_from_sslcon) {
pfd[0].fd = fileno(stdin);
pfd[0].events = POLLIN;
pfd[1].fd = s;
pfd[1].events = POLLIN;
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
ptimeout = timeout.tv_sec * 1000 +
timeout.tv_usec / 1000;
else
ptimeout = -1;
i = poll(pfd, 2, ptimeout);
if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
BIO_printf(bio_err, "TIMEOUT occured\n");
}
if (i <= 0)
continue;
if (pfd[0].revents) {
if ((pfd[0].revents & (POLLERR|POLLNVAL)))
continue;
read_from_terminal = 1;
}
if (pfd[1].revents) {
if ((pfd[1].revents & (POLLERR|POLLNVAL)))
continue;
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];
const unsigned char *next_proto_neg;
unsigned next_proto_neg_len;
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)");
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");
}
#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");
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;
if (s_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
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 (;;) {
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);
}
#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 {
arc4random_buf(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;
}
![[BACK]](/icons/back.gif){kind=icon}
Return to s_server.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / openssl