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openssl/apps/s_server.c
Richard Levitte a60994df34 Change the treatment of stdin and stdout to allow binary data 
If the output to stdout or the input from stdin is meant to be binary,
it's deeply unsetting to get the occasional LF converted to CRLF or
the other way around.  If someone happens to forget to redirect stdin
or stdout, they will get gibberish anyway, line ending conversion will
not change that.

Therefore, let's not have dup_bio_* decide unilaterally what mode the
BIO derived from stdin and stdout, and rather let the app decide by
declaring the intended format.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-09-06 13:34:49 +02:00

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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/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;
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;
#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 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;
#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)
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_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
OPT_BUILD_CHAIN, OPT_CAFILE, 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_SSL3,
OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_CHAIN,
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"},
{"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
{"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
{"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, '-'},
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"},
#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;
char *dhfile = NULL, *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;
int no_tmp_rsa = 0, no_dhe = 0, no_ecdhe = 0, nocert = 0, ret = 1;
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:
dhfile = opt_arg();
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_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_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:
no_dhe = 1;
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;
#else
case OPT_PSK_HINT:
case OPT_PSK:
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;
#else
case OPT_DTLS:
case OPT_DTLS1:
case OPT_DTLS1_2:
case OPT_TIMEOUT:
case OPT_MTU:
case OPT_CHAIN:
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;
}
}
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;
}
#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 (!app_load_modules(NULL))
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);
#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)) {
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 ((!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;
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);
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_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) {
if (!SSL_is_init_finished(con)) {
i = init_ssl_connection(con);
if (i < 0) {
ret = 0;
goto err;
} else if (i == 0) {
ret = 1;
goto err;
}
} else {
again:
i = SSL_read(con, (char *)buf, bufsize);
#ifndef OPENSSL_NO_SRP
while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during read\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
i = SSL_read(con, (char *)buf, bufsize);
}
#endif
switch (SSL_get_error(con, i)) {
case SSL_ERROR_NONE:
#ifdef CHARSET_EBCDIC
ascii2ebcdic(buf, buf, i);
#endif
raw_write_stdout(buf, (unsigned int)i);
if (SSL_pending(con))
goto again;
break;
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_READ:
BIO_printf(bio_s_out, "Read BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_SSL:
BIO_printf(bio_s_out, "ERROR\n");
(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_error;
char buf[BUFSIZ];
#if !defined(OPENSSL_NO_NEXTPROTONEG)
const unsigned char *next_proto_neg;
unsigned next_proto_neg_len;
#endif
unsigned char *exportedkeymat;
i = SSL_accept(con);
#ifdef CERT_CB_TEST_RETRY
{
while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
&& SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C) {
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
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));
}
/* 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
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)) {
if (!s_quiet)
ERR_print_errors(bio_err);
goto err;
} else {
BIO_printf(bio_s_out, "read R BLOCK\n");
#if defined(OPENSSL_SYS_NETWARE)
delay(1000);
#elif !defined(OPENSSL_SYS_MSDOS)
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);
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;
}
/* EVIL HACK! */
SSL_set_state(con, SSL_ST_ACCEPT);
i = SSL_do_handshake(con);
BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n", i);
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;
}
}
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++) {
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))
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;
}
}
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");
#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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