422 lines
11 KiB
C
422 lines
11 KiB
C
/* server.c
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*
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* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <cyassl/openssl/ssl.h>
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#include <cyassl/test.h>
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#include "examples/server/server.h"
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#ifdef CYASSL_CALLBACKS
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int srvHandShakeCB(HandShakeInfo*);
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int srvTimeoutCB(TimeoutInfo*);
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Timeval srvTo;
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#endif
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static void NonBlockingSSL_Accept(SSL* ssl)
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{
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#ifndef CYASSL_CALLBACKS
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int ret = SSL_accept(ssl);
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#else
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int ret = CyaSSL_accept_ex(ssl, srvHandShakeCB, srvTimeoutCB, srvTo);
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#endif
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int error = SSL_get_error(ssl, 0);
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SOCKET_T sockfd = (SOCKET_T)CyaSSL_get_fd(ssl);
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int select_ret;
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while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
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error == SSL_ERROR_WANT_WRITE)) {
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if (error == SSL_ERROR_WANT_READ)
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printf("... server would read block\n");
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else
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printf("... server would write block\n");
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if (CyaSSL_dtls(ssl))
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select_ret = tcp_select(sockfd,
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CyaSSL_dtls_get_current_timeout(ssl));
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else
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select_ret = tcp_select(sockfd, 1);
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if ((select_ret == TEST_RECV_READY) ||
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(select_ret == TEST_ERROR_READY)) {
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#ifndef CYASSL_CALLBACKS
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ret = SSL_accept(ssl);
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#else
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ret = CyaSSL_accept_ex(ssl,
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srvHandShakeCB, srvTimeoutCB, srvTo);
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#endif
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error = SSL_get_error(ssl, 0);
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}
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else if (select_ret == TEST_TIMEOUT &&
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(!CyaSSL_dtls(ssl) ||
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(CyaSSL_dtls_got_timeout(ssl) >= 0))) {
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error = SSL_ERROR_WANT_READ;
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}
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else {
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error = SSL_FATAL_ERROR;
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}
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}
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if (ret != SSL_SUCCESS)
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err_sys("SSL_accept failed");
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}
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static void Usage(void)
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{
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printf("server " LIBCYASSL_VERSION_STRING
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" NOTE: All files relative to CyaSSL home dir\n");
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printf("-? Help, print this usage\n");
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printf("-p <num> Port to listen on, default %d\n", yasslPort);
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printf("-v <num> SSL version [0-3], SSLv3(0) - TLS1.2(3)), default %d\n",
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SERVER_DEFAULT_VERSION);
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printf("-l <str> Cipher list\n");
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printf("-c <file> Certificate file, default %s\n", svrCert);
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printf("-k <file> Key file, default %s\n", svrKey);
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printf("-A <file> Certificate Authority file, default %s\n", cliCert);
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printf("-d Disable client cert check\n");
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printf("-b Bind to any interface instead of localhost only\n");
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printf("-s Use pre Shared keys\n");
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printf("-u Use UDP DTLS\n");
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printf("-N Use Non-blocking sockets\n");
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}
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THREAD_RETURN CYASSL_THREAD server_test(void* args)
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{
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SOCKET_T sockfd = 0;
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int clientfd = 0;
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SSL_METHOD* method = 0;
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SSL_CTX* ctx = 0;
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SSL* ssl = 0;
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char msg[] = "I hear you fa shizzle!";
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char input[1024];
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int idx;
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int ch;
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int version = SERVER_DEFAULT_VERSION;
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int doCliCertCheck = 1;
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int useAnyAddr = 0;
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int port = yasslPort;
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int usePsk = 0;
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int doDTLS = 0;
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int useNtruKey = 0;
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int nonBlocking = 0;
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char* cipherList = NULL;
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char* verifyCert = (char*)cliCert;
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char* ourCert = (char*)svrCert;
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char* ourKey = (char*)svrKey;
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int argc = ((func_args*)args)->argc;
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char** argv = ((func_args*)args)->argv;
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((func_args*)args)->return_code = -1; /* error state */
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while ((ch = mygetopt(argc, argv, "?dbsnNup:v:l:A:c:k:")) != -1) {
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switch (ch) {
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case '?' :
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Usage();
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exit(EXIT_SUCCESS);
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case 'd' :
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doCliCertCheck = 0;
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break;
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case 'b' :
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useAnyAddr = 1;
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break;
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case 's' :
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usePsk = 1;
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break;
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case 'n' :
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useNtruKey = 1;
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break;
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case 'u' :
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doDTLS = 1;
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version = -1; /* DTLS flag */
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break;
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case 'p' :
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port = atoi(myoptarg);
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break;
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case 'v' :
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version = atoi(myoptarg);
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if (version < 0 || version > 3) {
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Usage();
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exit(MY_EX_USAGE);
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}
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if (doDTLS)
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version = -1; /* stay with DTLS */
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break;
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case 'l' :
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cipherList = myoptarg;
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break;
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case 'A' :
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verifyCert = myoptarg;
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break;
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case 'c' :
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ourCert = myoptarg;
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break;
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case 'k' :
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ourKey = myoptarg;
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break;
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case 'N':
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nonBlocking = 1;
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break;
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default:
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Usage();
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exit(MY_EX_USAGE);
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}
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}
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argc -= myoptind;
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argv += myoptind;
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myoptind = 0; /* reset for test cases */
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switch (version) {
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case 0:
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method = SSLv3_server_method();
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break;
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case 1:
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method = TLSv1_server_method();
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break;
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case 2:
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method = TLSv1_1_server_method();
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break;
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case 3:
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method = TLSv1_2_server_method();
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break;
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#ifdef CYASSL_DTLS
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case -1:
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method = DTLSv1_server_method();
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break;
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#endif
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default:
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err_sys("Bad SSL version");
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}
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if (method == NULL)
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err_sys("unable to get method");
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ctx = SSL_CTX_new(method);
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if (ctx == NULL)
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err_sys("unable to get ctx");
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if (cipherList)
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if (SSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS)
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err_sys("can't set cipher list");
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#ifdef CYASSL_LEANPSK
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usePsk = 1;
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#endif
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#ifndef NO_FILESYSTEM
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if (!usePsk) {
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if (SSL_CTX_use_certificate_file(ctx, ourCert, SSL_FILETYPE_PEM)
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!= SSL_SUCCESS)
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err_sys("can't load server cert file, check file and run from"
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" CyaSSL home dir");
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}
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#endif
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#ifdef HAVE_NTRU
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if (useNtruKey) {
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if (CyaSSL_CTX_use_NTRUPrivateKey_file(ctx, ourKey)
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!= SSL_SUCCESS)
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err_sys("can't load ntru key file, "
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"Please run from CyaSSL home dir");
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}
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#endif
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#ifndef NO_FILESYSTEM
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if (!useNtruKey && !usePsk) {
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if (SSL_CTX_use_PrivateKey_file(ctx, ourKey, SSL_FILETYPE_PEM)
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!= SSL_SUCCESS)
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err_sys("can't load server cert file, check file and run from"
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" CyaSSL home dir");
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}
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#endif
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if (usePsk) {
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#ifndef NO_PSK
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SSL_CTX_set_psk_server_callback(ctx, my_psk_server_cb);
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SSL_CTX_use_psk_identity_hint(ctx, "cyassl server");
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if (cipherList == NULL) {
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const char *defaultCipherList;
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#ifdef HAVE_NULL_CIPHER
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defaultCipherList = "PSK-NULL-SHA";
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#else
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defaultCipherList = "PSK-AES256-CBC-SHA";
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#endif
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if (SSL_CTX_set_cipher_list(ctx, defaultCipherList) != SSL_SUCCESS)
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err_sys("can't set cipher list");
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}
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#endif
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}
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#ifndef NO_FILESYSTEM
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/* if not using PSK, verify peer with certs */
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if (doCliCertCheck && usePsk == 0) {
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SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER |
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SSL_VERIFY_FAIL_IF_NO_PEER_CERT,0);
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if (SSL_CTX_load_verify_locations(ctx, verifyCert, 0) != SSL_SUCCESS)
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err_sys("can't load ca file, Please run from CyaSSL home dir");
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}
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#endif
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#ifdef OPENSSL_EXTRA
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SSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
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#endif
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#if defined(CYASSL_SNIFFER) && !defined(HAVE_NTRU) && !defined(HAVE_ECC)
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/* don't use EDH, can't sniff tmp keys */
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if (cipherList == NULL) {
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if (SSL_CTX_set_cipher_list(ctx, "AES256-SHA") != SSL_SUCCESS)
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err_sys("can't set cipher list");
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}
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#endif
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ssl = SSL_new(ctx);
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if (ssl == NULL)
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err_sys("unable to get SSL");
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#ifdef HAVE_CRL
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CyaSSL_EnableCRL(ssl, 0);
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CyaSSL_LoadCRL(ssl, crlPemDir, SSL_FILETYPE_PEM, CYASSL_CRL_MONITOR |
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CYASSL_CRL_START_MON);
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CyaSSL_SetCRL_Cb(ssl, CRL_CallBack);
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#endif
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tcp_accept(&sockfd, &clientfd, (func_args*)args, port, useAnyAddr, doDTLS);
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if (!doDTLS)
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CloseSocket(sockfd);
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SSL_set_fd(ssl, clientfd);
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if (usePsk == 0) {
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#if !defined(NO_FILESYSTEM) && defined(OPENSSL_EXTRA)
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CyaSSL_SetTmpDH_file(ssl, dhParam, SSL_FILETYPE_PEM);
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#else
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SetDH(ssl); /* repick suites with DHE, higher priority than PSK */
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#endif
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}
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#ifndef CYASSL_CALLBACKS
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if (nonBlocking) {
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CyaSSL_set_using_nonblock(ssl, 1);
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tcp_set_nonblocking(&clientfd);
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NonBlockingSSL_Accept(ssl);
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} else if (SSL_accept(ssl) != SSL_SUCCESS) {
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int err = SSL_get_error(ssl, 0);
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char buffer[80];
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printf("error = %d, %s\n", err, ERR_error_string(err, buffer));
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err_sys("SSL_accept failed");
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}
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#else
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NonBlockingSSL_Accept(ssl);
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#endif
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showPeer(ssl);
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idx = SSL_read(ssl, input, sizeof(input));
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if (idx > 0) {
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input[idx] = 0;
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printf("Client message: %s\n", input);
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}
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if (SSL_write(ssl, msg, sizeof(msg)) != sizeof(msg))
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err_sys("SSL_write failed");
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SSL_shutdown(ssl);
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SSL_free(ssl);
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SSL_CTX_free(ctx);
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CloseSocket(clientfd);
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((func_args*)args)->return_code = 0;
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return 0;
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}
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/* so overall tests can pull in test function */
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#ifndef NO_MAIN_DRIVER
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int main(int argc, char** argv)
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{
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func_args args;
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StartTCP();
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args.argc = argc;
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args.argv = argv;
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CyaSSL_Init();
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#ifdef DEBUG_CYASSL
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CyaSSL_Debugging_ON();
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#endif
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if (CurrentDir("server") || CurrentDir("build"))
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ChangeDirBack(2);
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server_test(&args);
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CyaSSL_Cleanup();
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return args.return_code;
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}
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int myoptind = 0;
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char* myoptarg = NULL;
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#endif /* NO_MAIN_DRIVER */
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#ifdef CYASSL_CALLBACKS
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int srvHandShakeCB(HandShakeInfo* info)
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{
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return 0;
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}
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int srvTimeoutCB(TimeoutInfo* info)
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{
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return 0;
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}
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#endif
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