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e1b9840ed7
openssl/apps/s_server.c
Matt Caswell e1b9840ed7 Add s_client support for waiting for async 
s_server already had the ability to wait on an async file descriptor. This
adds it to s_client too.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2015-11-20 23:34:35 +00:00

3308 lines
106 KiB
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/* 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.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/async.h>
#include <openssl/e_os2.h>
/* conflicts with winsock2 stuff on netware */
#if !defined(OPENSSL_SYS_NETWARE)
# include <sys/types.h>
#endif
/*
* With IPv6, it looks like Digital has mixed up the proper order of
* recursive header file inclusion, resulting in the compiler complaining
* that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
* needed to have fileno() declared correctly... So let's define u_int
*/
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
# define __U_INT
typedef unsigned int u_int;
#endif
#include <openssl/lhash.h>
#include <openssl/bn.h>
#define USE_SOCKETS
#include "apps.h"
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/ocsp.h>
#ifndef OPENSSL_NO_DH
# include <openssl/dh.h>
#endif
#ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_SRP
# include <openssl/srp.h>
#endif
#include "s_apps.h"
#include "timeouts.h"
#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
# undef FIONBIO
#endif
#ifndef OPENSSL_NO_RSA
static RSA *tmp_rsa_cb(SSL *s, int is_export, int keylength);
#endif
static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
static int sv_body(char *hostname, int s, int stype, unsigned char *context);
static int www_body(char *hostname, int s, int stype, unsigned char *context);
static int rev_body(char *hostname, int s, int stype, unsigned char *context);
static void close_accept_socket(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);
static void init_session_cache_ctx(SSL_CTX *sctx);
static void free_sessions(void);
#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);*/
#undef BUFSIZZ
#define BUFSIZZ 16*1024
static int bufsize = BUFSIZZ;
static int accept_socket = -1;
#define TEST_CERT "server.pem"
#define TEST_CERT2 "server2.pem"
extern int verify_depth, verify_return_error, verify_quiet;
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, *s_chain_file = NULL;
static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
static char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
#ifdef FIONBIO
static int s_nbio = 0;
#endif
static int s_nbio_test = 0;
static 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 BIO *bio_s_msg = 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 no_resume_ephemeral = 0;
static int s_msg = 0;
static int s_quiet = 0;
static int s_ign_eof = 0;
static int s_brief = 0;
static char *keymatexportlabel = NULL;
static int keymatexportlen = 20;
static int async = 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 int dtlslisten = 0;
static BIO *serverinfo_in = NULL;
static const char *s_serverinfo_file = NULL;
#ifndef OPENSSL_NO_PSK
static char *psk_identity = "Client_identity";
char *psk_key = NULL; /* by default PSK is not used */
static unsigned int psk_server_cb(SSL *ssl, const char *identity,
unsigned char *psk,
unsigned int max_psk_len)
{
unsigned int psk_len = 0;
int ret;
BIGNUM *bn = NULL;
if (s_debug)
BIO_printf(bio_s_out, "psk_server_cb\n");
if (!identity) {
BIO_printf(bio_err, "Error: client did not send PSK identity\n");
goto out_err;
}
if (s_debug)
BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
(int)strlen(identity), identity);
/* here we could lookup the given identity e.g. from a database */
if (strcmp(identity, psk_identity) != 0) {
BIO_printf(bio_s_out, "PSK error: client identity not found"
" (got '%s' expected '%s')\n", identity, psk_identity);
goto out_err;
}
if (s_debug)
BIO_printf(bio_s_out, "PSK client identity found\n");
/* convert the PSK key to binary */
ret = BN_hex2bn(&bn, psk_key);
if (!ret) {
BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
psk_key);
BN_free(bn);
return 0;
}
if (BN_num_bytes(bn) > (int)max_psk_len) {
BIO_printf(bio_err,
"psk buffer of callback is too small (%d) for key (%d)\n",
max_psk_len, BN_num_bytes(bn));
BN_free(bn);
return 0;
}
ret = BN_bn2bin(bn, psk);
BN_free(bn);
if (ret < 0)
goto out_err;
psk_len = (unsigned int)ret;
if (s_debug)
BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
return psk_len;
out_err:
if (s_debug)
BIO_printf(bio_err, "Error in PSK server callback\n");
(void)BIO_flush(bio_err);
(void)BIO_flush(bio_s_out);
return 0;
}
#endif
#ifndef OPENSSL_NO_SRP
/* This is a context that we pass to callbacks */
typedef struct srpsrvparm_st {
char *login;
SRP_VBASE *vb;
SRP_user_pwd *user;
} srpsrvparm;
/*
* This callback pretends to require some asynchronous logic in order to
* obtain a verifier. When the callback is called for a new connection we
* return with a negative value. This will provoke the accept etc to return
* with an LOOKUP_X509. The main logic of the reinvokes the suspended call
* (which would normally occur after a worker has finished) and we set the
* user parameters.
*/
static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
{
srpsrvparm *p = (srpsrvparm *) arg;
if (p->login == NULL && p->user == NULL) {
p->login = SSL_get_srp_username(s);
BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
return (-1);
}
if (p->user == NULL) {
BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
return SSL3_AL_FATAL;
}
if (SSL_set_srp_server_param
(s, p->user->N, p->user->g, p->user->s, p->user->v,
p->user->info) < 0) {
*ad = SSL_AD_INTERNAL_ERROR;
return SSL3_AL_FATAL;
}
BIO_printf(bio_err,
"SRP parameters set: username = \"%s\" info=\"%s\" \n",
p->login, p->user->info);
/* need to check whether there are memory leaks */
p->user = NULL;
p->login = NULL;
return SSL_ERROR_NONE;
}
#endif
static void s_server_init(void)
{
accept_socket = -1;
verify_depth = 0;
s_server_verify = SSL_VERIFY_NONE;
s_dcert_file = NULL;
s_dkey_file = NULL;
s_dchain_file = NULL;
s_cert_file = TEST_CERT;
s_key_file = NULL;
s_chain_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;
s_brief = 0;
async = 0;
#ifndef OPENSSL_NO_ENGINE
engine_id = NULL;
#endif
}
static int local_argc = 0;
static char **local_argv;
#ifdef CHARSET_EBCDIC
static int ebcdic_new(BIO *bi);
static int ebcdic_free(BIO *a);
static int ebcdic_read(BIO *b, char *out, int outl);
static int ebcdic_write(BIO *b, const char *in, int inl);
static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
static int ebcdic_gets(BIO *bp, char *buf, int size);
static int ebcdic_puts(BIO *bp, const char *str);
# define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
static BIO_METHOD methods_ebcdic = {
BIO_TYPE_EBCDIC_FILTER,
"EBCDIC/ASCII filter",
ebcdic_write,
ebcdic_read,
ebcdic_puts,
ebcdic_gets,
ebcdic_ctrl,
ebcdic_new,
ebcdic_free,
};
/* This struct is "unwarranted chumminess with the compiler." */
typedef struct {
size_t alloced;
char buff[1];
} EBCDIC_OUTBUFF;
BIO_METHOD *BIO_f_ebcdic_filter()
{
return (&methods_ebcdic);
}
static int ebcdic_new(BIO *bi)
{
EBCDIC_OUTBUFF *wbuf;
wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
wbuf->alloced = 1024;
wbuf->buff[0] = '\0';
bi->ptr = (char *)wbuf;
bi->init = 1;
bi->flags = 0;
return (1);
}
static int ebcdic_free(BIO *a)
{
if (a == NULL)
return (0);
OPENSSL_free(a->ptr);
a->ptr = NULL;
a->init = 0;
a->flags = 0;
return (1);
}
static int ebcdic_read(BIO *b, char *out, int outl)
{
int ret = 0;
if (out == NULL || outl == 0)
return (0);
if (b->next_bio == NULL)
return (0);
ret = BIO_read(b->next_bio, out, outl);
if (ret > 0)
ascii2ebcdic(out, out, ret);
return (ret);
}
static int ebcdic_write(BIO *b, const char *in, int inl)
{
EBCDIC_OUTBUFF *wbuf;
int ret = 0;
int num;
unsigned char n;
if ((in == NULL) || (inl <= 0))
return (0);
if (b->next_bio == NULL)
return (0);
wbuf = (EBCDIC_OUTBUFF *) b->ptr;
if (inl > (num = wbuf->alloced)) {
num = num + num; /* double the size */
if (num < inl)
num = inl;
wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
OPENSSL_free(b->ptr);
wbuf->alloced = num;
wbuf->buff[0] = '\0';
b->ptr = (char *)wbuf;
}
ebcdic2ascii(wbuf->buff, in, inl);
ret = BIO_write(b->next_bio, wbuf->buff, inl);
return (ret);
}
static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
{
long ret;
if (b->next_bio == NULL)
return (0);
switch (cmd) {
case BIO_CTRL_DUP:
ret = 0L;
break;
default:
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return (ret);
}
static int ebcdic_gets(BIO *bp, char *buf, int size)
{
int i, ret = 0;
if (bp->next_bio == NULL)
return (0);
/* return(BIO_gets(bp->next_bio,buf,size));*/
for (i = 0; i < size - 1; ++i) {
ret = ebcdic_read(bp, &buf[i], 1);
if (ret <= 0)
break;
else if (buf[i] == '\n') {
++i;
break;
}
}
if (i < size)
buf[i] = '\0';
return (ret < 0 && i == 0) ? ret : i;
}
static int ebcdic_puts(BIO *bp, const char *str)
{
if (bp->next_bio == NULL)
return (0);
return ebcdic_write(bp, str, strlen(str));
}
#endif
/* 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 (strcasecmp(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;
int verbose;
} tlsextstatusctx;
static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, 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;
char *host = NULL, *port = NULL, *path = NULL;
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(bio_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(bio_err, "cert_status: can't parse AIA URL\n");
goto err;
}
if (srctx->verbose)
BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
sk_OPENSSL_STRING_value(aia, 0));
} else {
if (!srctx->host) {
BIO_puts(bio_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(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
X509_STORE_CTX_cleanup(&inctx);
goto done;
}
req = OCSP_REQUEST_new();
if (req == NULL)
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(req, host, path, port, use_ssl, NULL,
srctx->timeout);
if (!resp) {
BIO_puts(bio_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(bio_err, "cert_status: ocsp response sent:\n");
OCSP_RESPONSE_print(bio_err, resp, 2);
}
ret = SSL_TLSEXT_ERR_OK;
done:
if (ret != SSL_TLSEXT_ERR_OK)
ERR_print_errors(bio_err);
if (aia) {
OPENSSL_free(host);
OPENSSL_free(path);
OPENSSL_free(port);
X509_email_free(aia);
}
OCSP_CERTID_free(id);
OCSP_REQUEST_free(req);
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 */
/* 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;
}
static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
{
/* disable resumption for sessions with forward secure ciphers */
return is_forward_secure;
}
static char *jpake_secret = NULL;
#ifndef OPENSSL_NO_SRP
static srpsrvparm srp_callback_parm;
#endif
#ifndef OPENSSL_NO_SRTP
static char *srtp_profiles = NULL;
#endif
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_ENGINE, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
OPT_VERIFY, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_MSG, OPT_MSGFILE, OPT_TRACE,
OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, OPT_CRLF,
OPT_QUIET, OPT_BRIEF, OPT_NO_TMP_RSA, OPT_NO_DHE, OPT_NO_ECDHE,
OPT_NO_RESUME_EPHEMERAL, OPT_PSK_HINT, OPT_PSK, OPT_SRPVFILE,
OPT_SRPUSERSEED, OPT_REV, OPT_WWW, OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC,
OPT_SSL3,
OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_CHAIN, OPT_LISTEN,
OPT_ID_PREFIX, OPT_RAND, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_JPAKE,
OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
OPT_S_ENUM,
OPT_V_ENUM,
OPT_X_ENUM
} OPTION_CHOICE;
OPTIONS s_server_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"port", OPT_PORT, 'p'},
{"accept", OPT_PORT, 'p',
"TCP/IP port to accept on (default is " PORT_STR ")"},
{"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
{"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
{"context", OPT_CONTEXT, 's', "Set session ID context"},
{"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
{"Verify", OPT_UPPER_V_VERIFY, 'n',
"Turn on peer certificate verification, must have a cert"},
{"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT},
{"naccept", OPT_NACCEPT, 'p', "Terminate after pnum connections"},
{"serverinfo", OPT_SERVERINFO, 's',
"PEM serverinfo file for certificate"},
{"certform", OPT_CERTFORM, 'F',
"Certificate format (PEM or DER) PEM default"},
{"key", OPT_KEY, '<',
"Private Key if not in -cert; default is " TEST_CERT},
{"keyform", OPT_KEYFORM, 'f',
"Key format (PEM, DER or ENGINE) PEM default"},
{"pass", OPT_PASS, 's', "Private key file pass phrase source"},
{"dcert", OPT_DCERT, '<',
"Second certificate file to use (usually for DSA)"},
{"dcertform", OPT_DCERTFORM, 'F',
"Second certificate format (PEM or DER) PEM default"},
{"dkey", OPT_DKEY, '<',
"Second private key file to use (usually for DSA)"},
{"dkeyform", OPT_DKEYFORM, 'F',
"Second key format (PEM, DER or ENGINE) PEM default"},
{"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"},
{"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
{"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
{"debug", OPT_DEBUG, '-', "Print more output"},
{"msg", OPT_MSG, '-', "Show protocol messages"},
{"msgfile", OPT_MSGFILE, '>'},
{"state", OPT_STATE, '-', "Print the SSL states"},
{"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
{"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
{"no-CAfile", OPT_NOCAFILE, '-',
"Do not load the default certificates file"},
{"no-CApath", OPT_NOCAPATH, '-',
"Do not load certificates from the default certificates directory"},
{"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
{"quiet", OPT_QUIET, '-', "No server output"},
{"no_tmp_rsa", OPT_NO_TMP_RSA, '-', "Do not generate a tmp RSA key"},
{"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
{"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
{"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
{"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
"Disable caching and tickets if ephemeral (EC)DH is used"},
{"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
{"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
{"servername", OPT_SERVERNAME, 's',
"Servername for HostName TLS extension"},
{"servername_fatal", OPT_SERVERNAME_FATAL, '-',
"mismatch send fatal alert (default warning alert)"},
{"cert2", OPT_CERT2, '<',
"Certificate file to use for servername; default is" TEST_CERT2},
{"key2", OPT_KEY2, '<',
"-Private Key file to use for servername if not in -cert2"},
{"tlsextdebug", OPT_TLSEXTDEBUG, '-',
"Hex dump of all TLS extensions received"},
{"HTTP", OPT_HTTP, '-', "Like -WWW but ./path incluedes HTTP headers"},
{"id_prefix", OPT_ID_PREFIX, 's',
"Generate SSL/TLS session IDs prefixed by arg"},
{"rand", OPT_RAND, 's',
"Load the file(s) into the random number generator"},
{"keymatexport", OPT_KEYMATEXPORT, 's',
"Export keying material using label"},
{"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
"Export len bytes of keying material (default 20)"},
{"CRL", OPT_CRL, '<'},
{"crl_download", OPT_CRL_DOWNLOAD, '-'},
{"cert_chain", OPT_CERT_CHAIN, '<'},
{"dcert_chain", OPT_DCERT_CHAIN, '<'},
{"chainCApath", OPT_CHAINCAPATH, '/'},
{"verifyCApath", OPT_VERIFYCAPATH, '/'},
{"no_cache", OPT_NO_CACHE, '-'},
{"ext_cache", OPT_EXT_CACHE, '-'},
{"CRLform", OPT_CRLFORM, 'F'},
{"verify_return_error", OPT_VERIFY_RET_ERROR, '-'},
{"verify_quiet", OPT_VERIFY_QUIET, '-'},
{"build_chain", OPT_BUILD_CHAIN, '-'},
{"chainCAfile", OPT_CHAINCAFILE, '<'},
{"verifyCAfile", OPT_VERIFYCAFILE, '<'},
{"ign_eof", OPT_IGN_EOF, '-'},
{"no_ign_eof", OPT_NO_IGN_EOF, '-'},
{"status", OPT_STATUS, '-'},
{"status_verbose", OPT_STATUS_VERBOSE, '-'},
{"status_timeout", OPT_STATUS_TIMEOUT, 'n'},
{"status_url", OPT_STATUS_URL, 's'},
{"trace", OPT_TRACE, '-'},
{"security_debug", OPT_SECURITY_DEBUG, '-'},
{"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-'},
{"brief", OPT_BRIEF, '-'},
{"rev", OPT_REV, '-'},
{"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
OPT_S_OPTIONS,
OPT_V_OPTIONS,
OPT_X_OPTIONS,
#ifdef FIONBIO
{"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
#endif
#ifndef OPENSSL_NO_PSK
{"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
{"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
# ifndef OPENSSL_NO_JPAKE
{"jpake", OPT_JPAKE, 's', "JPAKE secret to use"},
# endif
#endif
#ifndef OPENSSL_NO_SRP
{"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"},
{"srpuserseed", OPT_SRPUSERSEED, 's',
"A seed string for a default user salt"},
#endif
#ifndef OPENSSL_NO_SSL3
{"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
#endif
#ifndef OPENSSL_NO_DTLS1
{"dtls", OPT_DTLS, '-'},
{"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
{"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
{"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
{"mtu", OPT_MTU, 'p', "Set link layer MTU"},
{"chain", OPT_CHAIN, '-', "Read a certificate chain"},
{"listen", OPT_LISTEN, '-',
"Listen for a DTLS ClientHello with a cookie and then connect"},
#endif
#ifndef OPENSSL_NO_DH
{"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
#endif
#ifndef OPENSSL_NO_EC
{"no_ecdhe", OPT_NO_ECDHE, '-', "Disable ephemeral ECDH"},
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
{"nextprotoneg", OPT_NEXTPROTONEG, 's',
"Set the advertised protocols for the NPN extension (comma-separated list)"},
#endif
#ifndef OPENSSL_NO_SRTP
{"use_srtp", OPT_SRTP_PROFILES, 's',
"Offer SRTP key management with a colon-separated profile list"},
{"alpn", OPT_ALPN, 's',
"Set the advertised protocols for the ALPN extension (comma-separated list)"},
#endif
#ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's'},
#endif
{NULL}
};
int s_server_main(int argc, char *argv[])
{
ENGINE *e = NULL;
EVP_PKEY *s_key = NULL, *s_dkey = NULL;
SSL_CONF_CTX *cctx = NULL;
const SSL_METHOD *meth = TLS_server_method();
SSL_EXCERT *exc = NULL;
STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
STACK_OF(X509_CRL) *crls = NULL;
X509 *s_cert = NULL, *s_dcert = NULL;
X509_VERIFY_PARAM *vpm = NULL;
char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL;
#ifndef OPENSSL_NO_DH
char *dhfile = NULL;
#endif
char *dpassarg = NULL, *dpass = NULL, *inrand = NULL;
char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
char *crl_file = NULL, *prog;
#ifndef OPENSSL_NO_PSK
char *p;
#endif
const char *unix_path = NULL;
#ifndef NO_SYS_UN_H
int unlink_unix_path = 0;
#endif
int (*server_cb) (char *hostname, int s, int stype,
unsigned char *context);
int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
#ifndef OPENSSL_NO_DH
int no_dhe = 0;
#endif
int no_tmp_rsa = 0, no_ecdhe = 0, nocert = 0, ret = 1;
int noCApath = 0, noCAfile = 0;
int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
int rev = 0, naccept = -1, sdebug = 0, socket_type = SOCK_STREAM;
int state = 0, crl_format = FORMAT_PEM, crl_download = 0;
unsigned short port = PORT;
unsigned char *context = NULL;
OPTION_CHOICE o;
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 = { NULL, 0 };
#endif
const char *alpn_in = NULL;
tlsextalpnctx alpn_ctx = { NULL, 0 };
#ifndef OPENSSL_NO_PSK
/* by default do not send a PSK identity hint */
static char *psk_identity_hint = NULL;
#endif
#ifndef OPENSSL_NO_SRP
char *srpuserseed = NULL;
char *srp_verifier_file = NULL;
#endif
local_argc = argc;
local_argv = argv;
s_server_init();
cctx = SSL_CONF_CTX_new();
vpm = X509_VERIFY_PARAM_new();
if (cctx == NULL || vpm == NULL)
goto end;
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
prog = opt_init(argc, argv, s_server_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
#ifdef OPENSSL_NO_PSK
case OPT_PSK_HINT:
case OPT_PSK:
#endif
#ifdef OPENSSL_NO_DTLS1
case OPT_DTLS:
case OPT_DTLS1:
case OPT_DTLS1_2:
case OPT_TIMEOUT:
case OPT_MTU:
case OPT_CHAIN:
#endif
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(s_server_options);
ret = 0;
goto end;
case OPT_PORT:
if (!extract_port(opt_arg(), &port))
goto end;
break;
case OPT_UNIX:
#ifdef NO_SYS_UN_H
BIO_printf(bio_err, "unix domain sockets unsupported\n");
goto end;
#else
unix_path = opt_arg();
#endif
break;
case OPT_UNLINK:
#ifdef NO_SYS_UN_H
BIO_printf(bio_err, "unix domain sockets unsupported\n");
goto end;
#else
unlink_unix_path = 1;
#endif
break;
case OPT_NACCEPT:
naccept = atol(opt_arg());
break;
case OPT_VERIFY:
s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
verify_depth = atoi(opt_arg());
if (!s_quiet)
BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
break;
case OPT_UPPER_V_VERIFY:
s_server_verify =
SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
SSL_VERIFY_CLIENT_ONCE;
verify_depth = atoi(opt_arg());
if (!s_quiet)
BIO_printf(bio_err,
"verify depth is %d, must return a certificate\n",
verify_depth);
break;
case OPT_CONTEXT:
context = (unsigned char *)opt_arg();
break;
case OPT_CERT:
s_cert_file = opt_arg();
break;
case OPT_CRL:
crl_file = opt_arg();
break;
case OPT_CRL_DOWNLOAD:
crl_download = 1;
break;
case OPT_SERVERINFO:
s_serverinfo_file = opt_arg();
break;
case OPT_CERTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format))
goto opthelp;
break;
case OPT_KEY:
s_key_file = opt_arg();
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
goto opthelp;
break;
case OPT_PASS:
passarg = opt_arg();
break;
case OPT_CERT_CHAIN:
s_chain_file = opt_arg();
break;
case OPT_DHPARAM:
#ifndef OPENSSL_NO_DH
dhfile = opt_arg();
#endif
break;
case OPT_DCERTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format))
goto opthelp;
break;
case OPT_DCERT:
s_dcert_file = opt_arg();
break;
case OPT_DKEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format))
goto opthelp;
break;
case OPT_DPASS:
dpassarg = opt_arg();
break;
case OPT_DKEY:
s_dkey_file = opt_arg();
break;
case OPT_DCERT_CHAIN:
s_dchain_file = opt_arg();
break;
case OPT_NOCERT:
nocert = 1;
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_NOCAPATH:
noCApath = 1;
break;
case OPT_CHAINCAPATH:
chCApath = opt_arg();
break;
case OPT_VERIFYCAPATH:
vfyCApath = opt_arg();
break;
case OPT_NO_CACHE:
no_cache = 1;
break;
case OPT_EXT_CACHE:
ext_cache = 1;
break;
case OPT_CRLFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
goto opthelp;
break;
case OPT_S_CASES:
if (ssl_args == NULL)
ssl_args = sk_OPENSSL_STRING_new_null();
if (ssl_args == NULL
|| !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
|| !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
goto end;
}
break;
case OPT_V_CASES:
if (!opt_verify(o, vpm))
goto end;
vpmtouched++;
break;
case OPT_X_CASES:
if (!args_excert(o, &exc))
goto end;
break;
case OPT_VERIFY_RET_ERROR:
verify_return_error = 1;
break;
case OPT_VERIFY_QUIET:
verify_quiet = 1;
break;
case OPT_BUILD_CHAIN:
build_chain = 1;
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_NOCAFILE:
noCAfile = 1;
break;
case OPT_CHAINCAFILE:
chCAfile = opt_arg();
break;
case OPT_VERIFYCAFILE:
vfyCAfile = opt_arg();
break;
case OPT_NBIO:
s_nbio = 1;
break;
case OPT_NBIO_TEST:
s_nbio = s_nbio_test = 1;
break;
case OPT_IGN_EOF:
s_ign_eof = 1;
break;
case OPT_NO_IGN_EOF:
s_ign_eof = 0;
break;
case OPT_DEBUG:
s_debug = 1;
break;
case OPT_TLSEXTDEBUG:
s_tlsextdebug = 1;
break;
case OPT_STATUS:
s_tlsextstatus = 1;
break;
case OPT_STATUS_VERBOSE:
s_tlsextstatus = tlscstatp.verbose = 1;
break;
case OPT_STATUS_TIMEOUT:
s_tlsextstatus = 1;
tlscstatp.timeout = atoi(opt_arg());
break;
case OPT_STATUS_URL:
s_tlsextstatus = 1;
if (!OCSP_parse_url(opt_arg(),
&tlscstatp.host,
&tlscstatp.port,
&tlscstatp.path, &tlscstatp.use_ssl)) {
BIO_printf(bio_err, "Error parsing URL\n");
goto end;
}
break;
case OPT_MSG:
s_msg = 1;
break;
case OPT_MSGFILE:
bio_s_msg = BIO_new_file(opt_arg(), "w");
break;
case OPT_TRACE:
#ifndef OPENSSL_NO_SSL_TRACE
s_msg = 2;
#else
break;
#endif
case OPT_SECURITY_DEBUG:
sdebug = 1;
break;
case OPT_SECURITY_DEBUG_VERBOSE:
sdebug = 2;
break;
case OPT_STATE:
state = 1;
break;
case OPT_CRLF:
s_crlf = 1;
break;
case OPT_QUIET:
s_quiet = 1;
break;
case OPT_BRIEF:
s_quiet = s_brief = verify_quiet = 1;
break;
case OPT_NO_TMP_RSA:
no_tmp_rsa = 1;
break;
case OPT_NO_DHE:
#ifndef OPENSSL_NO_DH
no_dhe = 1;
#endif
break;
case OPT_NO_ECDHE:
no_ecdhe = 1;
break;
case OPT_NO_RESUME_EPHEMERAL:
no_resume_ephemeral = 1;
break;
#ifndef OPENSSL_NO_PSK
case OPT_PSK_HINT:
psk_identity_hint = opt_arg();
break;
case OPT_PSK:
for (p = psk_key = opt_arg(); *p; p++) {
if (isxdigit(*p))
continue;
BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
goto end;
}
break;
#endif
#ifndef OPENSSL_NO_SRP
case OPT_SRPVFILE:
srp_verifier_file = opt_arg();
meth = TLSv1_server_method();
break;
case OPT_SRPUSERSEED:
srpuserseed = opt_arg();
meth = TLSv1_server_method();
break;
#else
case OPT_SRPVFILE:
case OPT_SRPUSERSEED:
break;
#endif
case OPT_REV:
rev = 1;
break;
case OPT_WWW:
www = 1;
break;
case OPT_UPPER_WWW:
www = 2;
break;
case OPT_HTTP:
www = 3;
break;
case OPT_SSL3:
#ifndef OPENSSL_NO_SSL3
meth = SSLv3_server_method();
#endif
break;
case OPT_TLS1_2:
meth = TLSv1_2_server_method();
break;
case OPT_TLS1_1:
meth = TLSv1_1_server_method();
break;
case OPT_TLS1:
meth = TLSv1_server_method();
break;
#ifndef OPENSSL_NO_DTLS1
case OPT_DTLS:
meth = DTLS_server_method();
socket_type = SOCK_DGRAM;
break;
case OPT_DTLS1:
meth = DTLSv1_server_method();
socket_type = SOCK_DGRAM;
break;
case OPT_DTLS1_2:
meth = DTLSv1_2_server_method();
socket_type = SOCK_DGRAM;
break;
case OPT_TIMEOUT:
enable_timeouts = 1;
break;
case OPT_MTU:
socket_mtu = atol(opt_arg());
break;
case OPT_CHAIN:
cert_chain = 1;
break;
case OPT_LISTEN:
dtlslisten = 1;
break;
#else
case OPT_DTLS:
case OPT_DTLS1:
case OPT_DTLS1_2:
case OPT_TIMEOUT:
case OPT_MTU:
case OPT_CHAIN:
case OPT_LISTEN:
break;
#endif
case OPT_ID_PREFIX:
session_id_prefix = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 1);
break;
case OPT_RAND:
inrand = opt_arg();
break;
case OPT_SERVERNAME:
tlsextcbp.servername = opt_arg();
break;
case OPT_SERVERNAME_FATAL:
tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
break;
case OPT_CERT2:
s_cert_file2 = opt_arg();
break;
case OPT_KEY2:
s_key_file2 = opt_arg();
break;
case OPT_NEXTPROTONEG:
# ifndef OPENSSL_NO_NEXTPROTONEG
next_proto_neg_in = opt_arg();
#endif
break;
case OPT_ALPN:
alpn_in = opt_arg();
break;
#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
case OPT_JPAKE:
jpake_secret = opt_arg();
break;
#else
case OPT_JPAKE:
goto opthelp;
#endif
case OPT_SRTP_PROFILES:
srtp_profiles = opt_arg();
break;
case OPT_KEYMATEXPORT:
keymatexportlabel = opt_arg();
break;
case OPT_KEYMATEXPORTLEN:
keymatexportlen = atoi(opt_arg());
break;
case OPT_ASYNC:
async = 1;
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
#ifndef OPENSSL_NO_DTLS1
if (www && socket_type == SOCK_DGRAM) {
BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
goto end;
}
if (dtlslisten && socket_type != SOCK_DGRAM) {
BIO_printf(bio_err, "Can only use -listen with DTLS\n");
goto end;
}
#endif
if (unix_path && (socket_type != SOCK_STREAM)) {
BIO_printf(bio_err,
"Can't use unix sockets and datagrams together\n");
goto end;
}
#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
if (jpake_secret) {
if (psk_key) {
BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
goto end;
}
psk_identity = "JPAKE";
}
#endif
if (!app_passwd(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 (!load_excert(&exc))
goto end;
if (nocert == 0) {
s_key = load_key(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(s_cert_file, s_cert_format,
NULL, e, "server certificate file");
if (!s_cert) {
ERR_print_errors(bio_err);
goto end;
}
if (s_chain_file) {
s_chain = load_certs(s_chain_file, FORMAT_PEM,
NULL, e, "server certificate chain");
if (!s_chain)
goto end;
}
if (tlsextcbp.servername) {
s_key2 = load_key(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(s_cert_file2, s_cert_format,
NULL, e, "second server certificate file");
if (!s_cert2) {
ERR_print_errors(bio_err);
goto end;
}
}
}
#if !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
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 (crl_file) {
X509_CRL *crl;
crl = load_crl(crl_file, crl_format);
if (!crl) {
BIO_puts(bio_err, "Error loading CRL\n");
ERR_print_errors(bio_err);
goto end;
}
crls = sk_X509_CRL_new_null();
if (!crls || !sk_X509_CRL_push(crls, crl)) {
BIO_puts(bio_err, "Error adding CRL\n");
ERR_print_errors(bio_err);
X509_CRL_free(crl);
goto end;
}
}
if (s_dcert_file) {
if (s_dkey_file == NULL)
s_dkey_file = s_dcert_file;
s_dkey = load_key(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(s_dcert_file, s_dcert_format,
NULL, e, "second server certificate file");
if (!s_dcert) {
ERR_print_errors(bio_err);
goto end;
}
if (s_dchain_file) {
s_dchain = load_certs(s_dchain_file, FORMAT_PEM,
NULL, e, "second server certificate chain");
if (!s_dchain)
goto end;
}
}
if (!app_RAND_load_file(NULL, 1) && inrand == NULL
&& !RAND_status()) {
BIO_printf(bio_err,
"warning, not much extra random data, consider using the -rand option\n");
}
if (inrand != NULL)
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
if (bio_s_out == NULL) {
if (s_quiet && !s_debug) {
bio_s_out = BIO_new(BIO_s_null());
if (s_msg && !bio_s_msg)
bio_s_msg = dup_bio_out(FORMAT_TEXT);
} else {
if (bio_s_out == NULL)
bio_s_out = dup_bio_out(FORMAT_TEXT);
}
}
#if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC)
if (nocert)
#endif
{
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 (sdebug)
ssl_ctx_security_debug(ctx, sdebug);
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");
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 (exc)
ssl_ctx_set_excert(ctx, exc);
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 if (ext_cache)
init_session_cache_ctx(ctx);
else
SSL_CTX_sess_set_cache_size(ctx, 128);
if (async) {
SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
ASYNC_init_pool(0, 0);
}
#ifndef OPENSSL_NO_SRTP
if (srtp_profiles != NULL) {
/* Returns 0 on success! */
if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
BIO_printf(bio_err, "Error setting SRTP profile\n");
ERR_print_errors(bio_err);
goto end;
}
}
#endif
if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
ERR_print_errors(bio_err);
goto end;
}
if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
BIO_printf(bio_err, "Error setting verify params\n");
ERR_print_errors(bio_err);
goto end;
}
ssl_ctx_add_crls(ctx, crls, 0);
if (!config_ctx(cctx, ssl_args, ctx, no_ecdhe, jpake_secret == NULL))
goto end;
if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
crls, crl_download)) {
BIO_printf(bio_err, "Error loading store locations\n");
ERR_print_errors(bio_err);
goto end;
}
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 (sdebug)
ssl_ctx_security_debug(ctx, sdebug);
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");
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 (exc)
ssl_ctx_set_excert(ctx2, exc);
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 if (ext_cache)
init_session_cache_ctx(ctx2);
else
SSL_CTX_sess_set_cache_size(ctx2, 128);
if (async)
SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx2))) {
ERR_print_errors(bio_err);
}
if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
BIO_printf(bio_err, "Error setting verify params\n");
ERR_print_errors(bio_err);
goto end;
}
ssl_ctx_add_crls(ctx2, crls, 0);
if (!config_ctx(cctx, ssl_args, ctx2, no_ecdhe, jpake_secret == NULL))
goto end;
}
#ifndef OPENSSL_NO_NEXTPROTONEG
if (next_proto.data)
SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
&next_proto);
#endif
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 default temp 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_puts(bio_err, "Error setting temp DH parameters\n");
ERR_print_errors(bio_err);
DH_free(dh);
goto end;
}
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;
}
}
if (dh == NULL)
SSL_CTX_set_dh_auto(ctx2, 1);
else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
BIO_puts(bio_err, "Error setting temp DH parameters\n");
ERR_print_errors(bio_err);
DH_free(dh);
goto end;
}
}
DH_free(dh);
}
#endif
if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
goto end;
if (s_serverinfo_file != NULL
&& !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
ERR_print_errors(bio_err);
goto end;
}
if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
goto end;
if (s_dcert != NULL) {
if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
goto end;
}
#ifndef OPENSSL_NO_RSA
if (!no_tmp_rsa) {
SSL_CTX_set_tmp_rsa_callback(ctx, tmp_rsa_cb);
if (ctx2)
SSL_CTX_set_tmp_rsa_callback(ctx2, tmp_rsa_cb);
}
#endif
if (no_resume_ephemeral) {
SSL_CTX_set_not_resumable_session_callback(ctx,
not_resumable_sess_cb);
if (ctx2)
SSL_CTX_set_not_resumable_session_callback(ctx2,
not_resumable_sess_cb);
}
#ifndef OPENSSL_NO_PSK
# ifdef OPENSSL_NO_JPAKE
if (psk_key != NULL)
# else
if (psk_key != NULL || jpake_secret)
# endif
{
if (s_debug)
BIO_printf(bio_s_out,
"PSK key given or JPAKE in use, setting server callback\n");
SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
}
if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
BIO_printf(bio_err, "error setting PSK identity hint to context\n");
ERR_print_errors(bio_err);
goto end;
}
#endif
SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
if (!SSL_CTX_set_session_id_context(ctx,
(void *)&s_server_session_id_context,
sizeof s_server_session_id_context)) {
BIO_printf(bio_err, "error setting session id context\n");
ERR_print_errors(bio_err);
goto end;
}
/* 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);
if (!SSL_CTX_set_session_id_context(ctx2,
(void *)&s_server_session_id_context,
sizeof s_server_session_id_context)) {
BIO_printf(bio_err, "error setting session id context\n");
ERR_print_errors(bio_err);
goto end;
}
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);
}
#ifndef OPENSSL_NO_SRP
if (srp_verifier_file != NULL) {
srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
srp_callback_parm.user = NULL;
srp_callback_parm.login = NULL;
if ((ret =
SRP_VBASE_init(srp_callback_parm.vb,
srp_verifier_file)) != SRP_NO_ERROR) {
BIO_printf(bio_err,
"Cannot initialize SRP verifier file \"%s\":ret=%d\n",
srp_verifier_file, ret);
goto end;
}
SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
} else
#endif
if (CAfile != NULL) {
SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
if (ctx2)
SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
}
if (s_tlsextstatus) {
SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
if (ctx2) {
SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
}
}
BIO_printf(bio_s_out, "ACCEPT\n");
(void)BIO_flush(bio_s_out);
if (rev)
server_cb = rev_body;
else if (www)
server_cb = www_body;
else
server_cb = sv_body;
#ifndef NO_SYS_UN_H
if (unix_path) {
if (unlink_unix_path)
unlink(unix_path);
do_server_unix(unix_path, &accept_socket, server_cb, context,
naccept);
} else
#endif
do_server(port, socket_type, &accept_socket, server_cb, context,
naccept);
print_stats(bio_s_out, ctx);
ret = 0;
end:
SSL_CTX_free(ctx);
X509_free(s_cert);
sk_X509_CRL_pop_free(crls, X509_CRL_free);
X509_free(s_dcert);
EVP_PKEY_free(s_key);
EVP_PKEY_free(s_dkey);
sk_X509_pop_free(s_chain, X509_free);
sk_X509_pop_free(s_dchain, X509_free);
OPENSSL_free(pass);
OPENSSL_free(dpass);
X509_VERIFY_PARAM_free(vpm);
free_sessions();
OPENSSL_free(tlscstatp.host);
OPENSSL_free(tlscstatp.port);
OPENSSL_free(tlscstatp.path);
SSL_CTX_free(ctx2);
X509_free(s_cert2);
EVP_PKEY_free(s_key2);
BIO_free(serverinfo_in);
#ifndef OPENSSL_NO_NEXTPROTONEG
OPENSSL_free(next_proto.data);
#endif
OPENSSL_free(alpn_ctx.data);
ssl_excert_free(exc);
sk_OPENSSL_STRING_free(ssl_args);
SSL_CONF_CTX_free(cctx);
BIO_free(bio_s_out);
bio_s_out = NULL;
BIO_free(bio_s_msg);
bio_s_msg = NULL;
if (async) {
ASYNC_free_pool();
}
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, int stype, 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;
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
struct timeval tv;
#else
struct timeval *timeoutp;
#endif
buf = app_malloc(bufsize, "server buffer");
#ifdef FIONBIO
if (s_nbio) {
unsigned long sl = 1;
if (!s_quiet)
BIO_printf(bio_err, "turning on non blocking io\n");
if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
ERR_print_errors(bio_err);
}
#endif
if (con == NULL) {
con = SSL_new(ctx);
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))) {
BIO_printf(bio_err, "Error setting session id context\n");
ret = -1;
goto err;
}
}
if (!SSL_clear(con)) {
BIO_printf(bio_err, "Error clearing SSL connection\n");
ret = -1;
goto err;
}
if (stype == SOCK_DGRAM) {
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) {
if (socket_mtu < DTLS_get_link_min_mtu(con)) {
BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
DTLS_get_link_min_mtu(con));
ret = -1;
BIO_free(sbio);
goto err;
}
SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
if (!DTLS_set_link_mtu(con, socket_mtu)) {
BIO_printf(bio_err, "Failed to set MTU\n");
ret = -1;
BIO_free(sbio);
goto err;
}
} else
/* want to do MTU discovery */
BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
/* turn on cookie exchange */
SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
} else
sbio = BIO_new_socket(s, BIO_NOCLOSE);
if (s_nbio_test) {
BIO *test;
test = BIO_new(BIO_f_nbio_test());
sbio = BIO_push(test, sbio);
}
#ifndef OPENSSL_NO_JPAKE
if (jpake_secret)
jpake_server_auth(bio_s_out, sbio, jpake_secret);
#endif
SSL_set_bio(con, sbio, sbio);
SSL_set_accept_state(con);
/* SSL_set_fd(con,s); */
if (s_debug) {
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
}
if (s_msg) {
#ifndef OPENSSL_NO_SSL_TRACE
if (s_msg == 2)
SSL_set_msg_callback(con, SSL_trace);
else
#endif
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
}
if (s_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
width = s + 1;
for (;;) {
int read_from_terminal;
int read_from_sslcon;
read_from_terminal = 0;
read_from_sslcon = SSL_pending(con)
|| (async && SSL_waiting_for_async(con));
if (!read_from_sslcon) {
FD_ZERO(&readfds);
#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
openssl_fdset(fileno(stdin), &readfds);
#endif
openssl_fdset(s, &readfds);
/*
* Note: under VMS with SOCKETSHR the second parameter is
* currently of type (int *) whereas under other systems it is
* (void *) if you don't have a cast it will choke the compiler:
* if you do have a cast then you can either go for (int *) or
* (void *).
*/
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
/*
* Under DOS (non-djgpp) and Windows we can't select on stdin:
* only on sockets. As a workaround we timeout the select every
* second and check for any keypress. In a proper Windows
* application we wouldn't do this because it is inefficient.
*/
tv.tv_sec = 1;
tv.tv_usec = 0;
i = select(width, (void *)&readfds, NULL, NULL, &tv);
if ((i < 0) || (!i && !_kbhit()))
continue;
if (_kbhit())
read_from_terminal = 1;
#else
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
timeoutp = &timeout;
else
timeoutp = NULL;
i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
if ((SSL_version(con) == DTLS1_VERSION)
&& DTLSv1_handle_timeout(con) > 0) {
BIO_printf(bio_err, "TIMEOUT occurred\n");
}
if (i <= 0)
continue;
if (FD_ISSET(fileno(stdin), &readfds))
read_from_terminal = 1;
#endif
if (FD_ISSET(s, &readfds))
read_from_sslcon = 1;
}
if (read_from_terminal) {
if (s_crlf) {
int j, lf_num;
i = raw_read_stdin(buf, bufsize / 2);
lf_num = 0;
/* both loops are skipped when i <= 0 */
for (j = 0; j < i; j++)
if (buf[j] == '\n')
lf_num++;
for (j = i - 1; j >= 0; j--) {
buf[j + lf_num] = buf[j];
if (buf[j] == '\n') {
lf_num--;
i++;
buf[j + lf_num] = '\r';
}
}
assert(lf_num == 0);
} else
i = raw_read_stdin(buf, bufsize);
if (!s_quiet && !s_brief) {
if ((i <= 0) || (buf[0] == 'Q')) {
BIO_printf(bio_s_out, "DONE\n");
(void)BIO_flush(bio_s_out);
SHUTDOWN(s);
close_accept_socket();
ret = -11;
goto err;
}
if ((i <= 0) || (buf[0] == 'q')) {
BIO_printf(bio_s_out, "DONE\n");
(void)BIO_flush(bio_s_out);
if (SSL_version(con) != DTLS1_VERSION)
SHUTDOWN(s);
/*
* close_accept_socket(); ret= -11;
*/
goto err;
}
#ifndef OPENSSL_NO_HEARTBEATS
if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
BIO_printf(bio_err, "HEARTBEATING\n");
SSL_heartbeat(con);
i = 0;
continue;
}
#endif
if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
SSL_renegotiate(con);
i = SSL_do_handshake(con);
printf("SSL_do_handshake -> %d\n", i);
i = 0; /* 13; */
continue;
/*
* strcpy(buf,"server side RE-NEGOTIATE\n");
*/
}
if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
SSL_set_verify(con,
SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
NULL);
SSL_renegotiate(con);
i = SSL_do_handshake(con);
printf("SSL_do_handshake -> %d\n", i);
i = 0; /* 13; */
continue;
/*
* strcpy(buf,"server side RE-NEGOTIATE asking for client
* cert\n");
*/
}
if (buf[0] == 'P') {
static const char *str = "Lets print some clear text\n";
BIO_write(SSL_get_wbio(con), str, strlen(str));
}
if (buf[0] == 'S') {
print_stats(bio_s_out, SSL_get_SSL_CTX(con));
}
}
#ifdef CHARSET_EBCDIC
ebcdic2ascii(buf, buf, i);
#endif
l = k = 0;
for (;;) {
/* should do a select for the write */
#ifdef RENEG
{
static count = 0;
if (++count == 100) {
count = 0;
SSL_renegotiate(con);
}
}
#endif
k = SSL_write(con, &(buf[l]), (unsigned int)i);
#ifndef OPENSSL_NO_SRP
while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during write\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
k = SSL_write(con, &(buf[l]), (unsigned int)i);
}
#endif
switch (SSL_get_error(con, k)) {
case SSL_ERROR_NONE:
break;
case SSL_ERROR_WANT_ASYNC:
BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
wait_for_async(con);
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");
(void)BIO_flush(bio_s_out);
ERR_print_errors(bio_err);
ret = 1;
goto err;
/* break; */
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_s_out, "DONE\n");
(void)BIO_flush(bio_s_out);
ret = 1;
goto err;
}
if (k > 0) {
l += k;
i -= k;
}
if (i <= 0)
break;
}
}
if (read_from_sslcon) {
/*
* init_ssl_connection handles all async events itself so if we're
* waiting for async then we shouldn't go back into
* init_ssl_connection
*/
if ((!async || !SSL_waiting_for_async(con))
&& !SSL_is_init_finished(con)) {
i = init_ssl_connection(con);
if (i < 0) {
ret = 0;
goto err;
} else if (i == 0) {
ret = 1;
goto err;
}
} else {
again:
i = SSL_read(con, (char *)buf, bufsize);
#ifndef OPENSSL_NO_SRP
while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during read\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
i = SSL_read(con, (char *)buf, bufsize);
}
#endif
switch (SSL_get_error(con, i)) {
case SSL_ERROR_NONE:
#ifdef CHARSET_EBCDIC
ascii2ebcdic(buf, buf, i);
#endif
raw_write_stdout(buf, (unsigned int)i);
if (SSL_pending(con))
goto again;
break;
case SSL_ERROR_WANT_ASYNC:
BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
wait_for_async(con);
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");
(void)BIO_flush(bio_s_out);
ERR_print_errors(bio_err);
ret = 1;
goto err;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_s_out, "DONE\n");
(void)BIO_flush(bio_s_out);
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");
OPENSSL_clear_free(buf, bufsize);
if (ret >= 0)
BIO_printf(bio_s_out, "ACCEPT\n");
(void)BIO_flush(bio_s_out);
return (ret);
}
static void close_accept_socket(void)
{
BIO_printf(bio_err, "shutdown accept socket\n");
if (accept_socket >= 0) {
SHUTDOWN2(accept_socket);
}
}
static int init_ssl_connection(SSL *con)
{
int i;
const char *str;
X509 *peer;
long verify_err;
char buf[BUFSIZ];
#if !defined(OPENSSL_NO_NEXTPROTONEG)
const unsigned char *next_proto_neg;
unsigned next_proto_neg_len;
#endif
unsigned char *exportedkeymat;
struct sockaddr_storage client;
#ifndef OPENSSL_NO_DTLS1
if(dtlslisten) {
i = DTLSv1_listen(con, &client);
if (i > 0) {
BIO *wbio;
int fd = -1;
wbio = SSL_get_wbio(con);
if(wbio) {
BIO_get_fd(wbio, &fd);
}
if(!wbio || connect(fd, (struct sockaddr *)&client,
sizeof(struct sockaddr_storage))) {
BIO_printf(bio_err, "ERROR - unable to connect\n");
return 0;
}
dtlslisten = 0;
i = SSL_accept(con);
}
} else
#endif
do {
i = SSL_accept(con);
#ifdef CERT_CB_TEST_RETRY
{
while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
&& SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
BIO_printf(bio_err,
"LOOKUP from certificate callback during accept\n");
i = SSL_accept(con);
}
}
#endif
#ifndef OPENSSL_NO_SRP
while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
srp_callback_parm.login);
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
i = SSL_accept(con);
}
#endif
} while (i < 0 && SSL_waiting_for_async(con));
if (i <= 0) {
if ((dtlslisten && i == 0)
|| (!dtlslisten && BIO_sock_should_retry(i))) {
BIO_printf(bio_s_out, "DELAY\n");
return (1);
}
BIO_printf(bio_err, "ERROR\n");
verify_err = SSL_get_verify_result(con);
if (verify_err != X509_V_OK) {
BIO_printf(bio_err, "verify error:%s\n",
X509_verify_cert_error_string(verify_err));
}
/* Always print any error messages */
ERR_print_errors(bio_err);
return (0);
}
if (s_brief)
print_ssl_summary(con);
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));
ssl_print_sigalgs(bio_s_out, con);
#ifndef OPENSSL_NO_EC
ssl_print_point_formats(bio_s_out, con);
ssl_print_curves(bio_s_out, con, 0);
#endif
BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
#if !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");
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 = app_malloc(keymatexportlen, "export key");
if (!SSL_export_keying_material(con, exportedkeymat,
keymatexportlen,
keymatexportlabel,
strlen(keymatexportlabel),
NULL, 0, 0)) {
BIO_printf(bio_s_out, " Error\n");
} else {
BIO_printf(bio_s_out, " Keying material: ");
for (i = 0; i < keymatexportlen; i++)
BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
BIO_printf(bio_s_out, "\n");
}
OPENSSL_free(exportedkeymat);
}
return (1);
}
#ifndef OPENSSL_NO_DH
static DH *load_dh_param(const char *dhfile)
{
DH *ret = NULL;
BIO *bio;
if ((bio = BIO_new_file(dhfile, "r")) == NULL)
goto err;
ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
err:
BIO_free(bio);
return (ret);
}
#endif
static int www_body(char *hostname, int s, int stype, 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;
#ifdef RENEG
int total_bytes = 0;
#endif
int width;
fd_set readfds;
/* Set width for a select call if needed */
width = s + 1;
buf = app_malloc(bufsize, "server www buffer");
io = BIO_new(BIO_f_buffer());
ssl_bio = BIO_new(BIO_f_ssl());
if ((io == NULL) || (ssl_bio == NULL))
goto err;
#ifdef FIONBIO
if (s_nbio) {
unsigned long sl = 1;
if (!s_quiet)
BIO_printf(bio_err, "turning on non blocking io\n");
if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
ERR_print_errors(bio_err);
}
#endif
/* lets make the output buffer a reasonable size */
if (!BIO_set_write_buffer_size(io, bufsize))
goto err;
if ((con = SSL_new(ctx)) == NULL)
goto err;
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)))
goto err;
sbio = BIO_new_socket(s, BIO_NOCLOSE);
if (s_nbio_test) {
BIO *test;
test = BIO_new(BIO_f_nbio_test());
sbio = BIO_push(test, sbio);
}
SSL_set_bio(con, sbio, sbio);
SSL_set_accept_state(con);
/* SSL_set_fd(con,s); */
BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
BIO_push(io, ssl_bio);
#ifdef CHARSET_EBCDIC
io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
#endif
if (s_debug) {
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
}
if (s_msg) {
#ifndef OPENSSL_NO_SSL_TRACE
if (s_msg == 2)
SSL_set_msg_callback(con, SSL_trace);
else
#endif
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
}
for (;;) {
i = BIO_gets(io, buf, bufsize - 1);
if (i < 0) { /* error */
if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
if (!s_quiet)
ERR_print_errors(bio_err);
goto err;
} else {
BIO_printf(bio_s_out, "read R BLOCK\n");
#ifndef OPENSSL_NO_SRP
if (BIO_should_io_special(io)
&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during read\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
continue;
}
#endif
#if defined(OPENSSL_SYS_NETWARE)
delay(1000);
#elif !defined(OPENSSL_SYS_MSDOS)
sleep(1);
#endif
continue;
}
} else if (i == 0) { /* end of input */
ret = 1;
goto end;
}
/* else we have data */
if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
char *p;
X509 *peer;
STACK_OF(SSL_CIPHER) *sk;
static const char *space = " ";
if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
if (strncmp("GET /renegcert", buf, 14) == 0)
SSL_set_verify(con,
SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
NULL);
i = SSL_renegotiate(con);
BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
/* Send the HelloRequest */
i = SSL_do_handshake(con);
if (i <= 0) {
BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
SSL_get_error(con, i));
ERR_print_errors(bio_err);
goto err;
}
/* Wait for a ClientHello to come back */
FD_ZERO(&readfds);
openssl_fdset(s, &readfds);
i = select(width, (void *)&readfds, NULL, NULL, NULL);
if (i <= 0 || !FD_ISSET(s, &readfds)) {
BIO_printf(bio_s_out, "Error waiting for client response\n");
ERR_print_errors(bio_err);
goto err;
}
/*
* We're not acutally expecting any data here and we ignore
* any that is sent. This is just to force the handshake that
* we're expecting to come from the client. If they haven't
* sent one there's not much we can do.
*/
BIO_gets(io, buf, bufsize - 1);
}
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,OpenSSL_version(OPENSSL_VERSION));*/
BIO_puts(io, "\n");
for (i = 0; i < local_argc; i++) {
const char *myp;
for (myp = local_argv[i]; *myp; myp++)
switch (*myp) {
case '<':
BIO_puts(io, "&lt;");
break;
case '>':
BIO_puts(io, "&gt;");
break;
case '&':
BIO_puts(io, "&amp;");
break;
default:
BIO_write(io, myp, 1);
break;
}
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");
}
ssl_print_sigalgs(io, con);
#ifndef OPENSSL_NO_EC
ssl_print_curves(io, con, 0);
#endif
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;
BIO_printf(bio_err, "%d\n", i);
if (total_bytes > 3 * 1024) {
total_bytes = 0;
BIO_printf(bio_err, "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) && !SSL_waiting_for_async(con))
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");
OPENSSL_free(buf);
BIO_free_all(io);
return (ret);
}
static int rev_body(char *hostname, int s, int stype, unsigned char *context)
{
char *buf = NULL;
int i;
int ret = 1;
SSL *con;
BIO *io, *ssl_bio, *sbio;
buf = app_malloc(bufsize, "server rev buffer");
io = BIO_new(BIO_f_buffer());
ssl_bio = BIO_new(BIO_f_ssl());
if ((io == NULL) || (ssl_bio == NULL))
goto 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))) {
ERR_print_errors(bio_err);
goto err;
}
sbio = BIO_new_socket(s, BIO_NOCLOSE);
SSL_set_bio(con, sbio, sbio);
SSL_set_accept_state(con);
BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
BIO_push(io, ssl_bio);
#ifdef CHARSET_EBCDIC
io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
#endif
if (s_debug) {
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
}
if (s_msg) {
#ifndef OPENSSL_NO_SSL_TRACE
if (s_msg == 2)
SSL_set_msg_callback(con, SSL_trace);
else
#endif
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
}
for (;;) {
i = BIO_do_handshake(io);
if (i > 0)
break;
if (!BIO_should_retry(io)) {
BIO_puts(bio_err, "CONNECTION FAILURE\n");
ERR_print_errors(bio_err);
goto end;
}
#ifndef OPENSSL_NO_SRP
if (BIO_should_io_special(io)
&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
continue;
}
#endif
}
BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
print_ssl_summary(con);
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");
#ifndef OPENSSL_NO_SRP
if (BIO_should_io_special(io)
&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during read\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
continue;
}
#endif
#if defined(OPENSSL_SYS_NETWARE)
delay(1000);
#elif !defined(OPENSSL_SYS_MSDOS)
sleep(1);
#endif
continue;
}
} else if (i == 0) { /* end of input */
ret = 1;
BIO_printf(bio_err, "CONNECTION CLOSED\n");
goto end;
} else {
char *p = buf + i - 1;
while (i && (*p == '\n' || *p == '\r')) {
p--;
i--;
}
if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) {
ret = 1;
BIO_printf(bio_err, "CONNECTION CLOSED\n");
goto end;
}
BUF_reverse((unsigned char *)buf, NULL, i);
buf[i] = '\n';
BIO_write(io, buf, i + 1);
for (;;) {
i = BIO_flush(io);
if (i > 0)
break;
if (!BIO_should_retry(io))
goto end;
}
}
}
end:
/* make sure we re-use sessions */
SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
err:
OPENSSL_free(buf);
BIO_free_all(io);
return (ret);
}
#ifndef OPENSSL_NO_RSA
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)) {
RSA_free(rsa_tmp);
rsa_tmp = NULL;
}
if (!s_quiet) {
BIO_printf(bio_err, "\n");
(void)BIO_flush(bio_err);
}
BN_free(bn);
}
return (rsa_tmp);
}
#endif
#define MAX_SESSION_ID_ATTEMPTS 10
static int generate_session_id(const SSL *ssl, unsigned char *id,
unsigned int *id_len)
{
unsigned int count = 0;
do {
if (RAND_bytes(id, *id_len) <= 0)
return 0;
/*
* 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;
}
/*
* By default s_server uses an in-memory cache which caches SSL_SESSION
* structures without any serialisation. This hides some bugs which only
* become apparent in deployed servers. By implementing a basic external
* session cache some issues can be debugged using s_server.
*/
typedef struct simple_ssl_session_st {
unsigned char *id;
unsigned int idlen;
unsigned char *der;
int derlen;
struct simple_ssl_session_st *next;
} simple_ssl_session;
static simple_ssl_session *first = NULL;
static int add_session(SSL *ssl, SSL_SESSION *session)
{
simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
unsigned char *p;
SSL_SESSION_get_id(session, &sess->idlen);
sess->derlen = i2d_SSL_SESSION(session, NULL);
if (sess->derlen < 0) {
BIO_printf(bio_err, "Error encoding session\n");
OPENSSL_free(sess);
return 0;
}
sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
sess->der = app_malloc(sess->derlen, "get session buffer");
if (!sess->id) {
BIO_printf(bio_err, "Out of memory adding to external cache\n");
OPENSSL_free(sess->id);
OPENSSL_free(sess->der);
OPENSSL_free(sess);
return 0;
}
p = sess->der;
/* Assume it still works. */
if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
BIO_printf(bio_err, "Unexpected session encoding length\n");
OPENSSL_free(sess->id);
OPENSSL_free(sess->der);
OPENSSL_free(sess);
return 0;
}
sess->next = first;
first = sess;
BIO_printf(bio_err, "New session added to external cache\n");
return 0;
}
static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
int *do_copy)
{
simple_ssl_session *sess;
*do_copy = 0;
for (sess = first; sess; sess = sess->next) {
if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
const unsigned char *p = sess->der;
BIO_printf(bio_err, "Lookup session: cache hit\n");
return d2i_SSL_SESSION(NULL, &p, sess->derlen);
}
}
BIO_printf(bio_err, "Lookup session: cache miss\n");
return NULL;
}
static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
{
simple_ssl_session *sess, *prev = NULL;
const unsigned char *id;
unsigned int idlen;
id = SSL_SESSION_get_id(session, &idlen);
for (sess = first; sess; sess = sess->next) {
if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
if (prev)
prev->next = sess->next;
else
first = sess->next;
OPENSSL_free(sess->id);
OPENSSL_free(sess->der);
OPENSSL_free(sess);
return;
}
prev = sess;
}
}
static void init_session_cache_ctx(SSL_CTX *sctx)
{
SSL_CTX_set_session_cache_mode(sctx,
SSL_SESS_CACHE_NO_INTERNAL |
SSL_SESS_CACHE_SERVER);
SSL_CTX_sess_set_new_cb(sctx, add_session);
SSL_CTX_sess_set_get_cb(sctx, get_session);
SSL_CTX_sess_set_remove_cb(sctx, del_session);
}
static void free_sessions(void)
{
simple_ssl_session *sess, *tsess;
for (sess = first; sess;) {
OPENSSL_free(sess->id);
OPENSSL_free(sess->der);
tsess = sess;
sess = sess->next;
OPENSSL_free(tsess);
}
first = NULL;
}
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