571 lines
18 KiB
C
571 lines
18 KiB
C
/* echoserver.c
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL 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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* wolfSSL 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, 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 <wolfssl/ssl.h> /* name change portability layer */
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#include <wolfssl/wolfcrypt/settings.h>
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#ifdef HAVE_ECC
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#include <wolfssl/wolfcrypt/ecc.h> /* ecc_fp_free */
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#endif
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#if defined(WOLFSSL_MDK_ARM) || defined(WOLFSSL_KEIL_TCP_NET)
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#include <stdio.h>
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#include <string.h>
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#include "cmsis_os.h"
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#include "rl_fs.h"
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#include "rl_net.h"
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#include "wolfssl_MDK_ARM.h"
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#endif
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#include <wolfssl/ssl.h>
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#include <wolfssl/test.h>
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#ifndef NO_MAIN_DRIVER
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#define ECHO_OUT
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#endif
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#include "examples/echoserver/echoserver.h"
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#ifndef NO_WOLFSSL_SERVER
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#ifdef NO_FILESYSTEM
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#ifdef NO_RSA
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#error currently the example only tries to load in a RSA buffer
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#endif
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#undef USE_CERT_BUFFERS_2048
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#define USE_CERT_BUFFERS_2048
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#include <wolfssl/certs_test.h>
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#endif
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#ifdef WOLFSSL_ASYNC_CRYPT
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static int devId = INVALID_DEVID;
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#endif
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#define SVR_COMMAND_SIZE 256
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static void SignalReady(void* args, word16 port)
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{
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#if defined(NO_MAIN_DRIVER) && defined(WOLFSSL_COND)
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/* signal ready to tcp_accept */
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func_args* server_args = (func_args*)args;
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tcp_ready* ready = server_args->signal;
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THREAD_CHECK_RET(wolfSSL_CondStart(&ready->cond));
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ready->ready = 1;
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ready->port = port;
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THREAD_CHECK_RET(wolfSSL_CondSignal(&ready->cond));
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THREAD_CHECK_RET(wolfSSL_CondEnd(&ready->cond));
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#endif /* NO_MAIN_DRIVER && WOLFSSL_COND */
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(void)args;
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(void)port;
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}
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THREAD_RETURN WOLFSSL_THREAD echoserver_test(void* args)
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{
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SOCKET_T sockfd = 0;
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WOLFSSL_METHOD* method = 0;
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WOLFSSL_CTX* ctx = 0;
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int ret = 0;
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int doDTLS = 0;
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int doPSK;
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int outCreated = 0;
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int shutDown = 0;
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int useAnyAddr = 0;
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word16 port;
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int argc = ((func_args*)args)->argc;
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char** argv = ((func_args*)args)->argv;
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char buffer[WOLFSSL_MAX_ERROR_SZ];
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#ifdef HAVE_TEST_SESSION_TICKET
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MyTicketCtx myTicketCtx;
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#endif
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#ifdef ECHO_OUT
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FILE* fout = stdout;
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if (argc >= 2) {
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fout = fopen(argv[1], "w");
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outCreated = 1;
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}
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if (!fout) err_sys("can't open output file");
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#endif
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(void)outCreated;
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(void)argc;
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(void)argv;
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((func_args*)args)->return_code = -1; /* error state */
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#ifdef WOLFSSL_DTLS
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doDTLS = 1;
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#endif
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#if (defined(NO_RSA) && !defined(HAVE_ECC) && !defined(HAVE_ED25519) && \
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!defined(HAVE_ED448)) || defined(WOLFSSL_LEANPSK)
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doPSK = 1;
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#else
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doPSK = 0;
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#endif
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#if defined(NO_MAIN_DRIVER) && !defined(WOLFSSL_SNIFFER) && \
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!defined(WOLFSSL_MDK_SHELL) && !defined(WOLFSSL_TIRTOS) && \
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!defined(USE_WINDOWS_API)
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/* Let tcp_listen assign port */
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port = 0;
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#else
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/* Use default port */
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port = wolfSSLPort;
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#endif
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#if defined(USE_ANY_ADDR)
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useAnyAddr = 1;
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#endif
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#ifdef WOLFSSL_TIRTOS
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fdOpenSession(Task_self());
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#endif
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tcp_listen(&sockfd, &port, useAnyAddr, doDTLS, 0);
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#if defined(WOLFSSL_DTLS)
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#ifdef WOLFSSL_DTLS13
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method = wolfDTLSv1_3_server_method();
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#elif !defined(WOLFSSL_NO_TLS12)
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method = wolfDTLSv1_2_server_method();
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#endif
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#elif !defined(NO_TLS)
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#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_SNIFFER)
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method = wolfTLSv1_2_server_method();
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#else
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method = wolfSSLv23_server_method();
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#endif
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#elif defined(WOLFSSL_ALLOW_SSLV3)
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method = wolfSSLv3_server_method();
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#else
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#error "no valid server method built in"
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#endif
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ctx = wolfSSL_CTX_new(method);
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/* wolfSSL_CTX_set_session_cache_mode(ctx, WOLFSSL_SESS_CACHE_OFF); */
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#ifdef WOLFSSL_ENCRYPTED_KEYS
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wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
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#endif
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#ifdef HAVE_TEST_SESSION_TICKET
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if (TicketInit() != 0)
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err_sys("unable to setup Session Ticket Key context");
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wolfSSL_CTX_set_TicketEncCb(ctx, myTicketEncCb);
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XMEMSET(&myTicketCtx, 0, sizeof(myTicketCtx));
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wolfSSL_CTX_set_TicketEncCtx(ctx, &myTicketCtx);
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#endif
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#ifndef NO_FILESYSTEM
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if (doPSK == 0) {
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#if defined(HAVE_ECC) && !defined(WOLFSSL_SNIFFER)
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/* ecc */
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if (wolfSSL_CTX_use_certificate_file(ctx, eccCertFile, WOLFSSL_FILETYPE_PEM)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server cert file, "
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"Please run from wolfSSL home dir");
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if (wolfSSL_CTX_use_PrivateKey_file(ctx, eccKeyFile, WOLFSSL_FILETYPE_PEM)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server key file, "
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"Please run from wolfSSL home dir");
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#elif defined(HAVE_ED25519) && !defined(WOLFSSL_SNIFFER)
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/* ed25519 */
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if (wolfSSL_CTX_use_certificate_chain_file(ctx, edCertFile)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server cert file, "
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"Please run from wolfSSL home dir");
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if (wolfSSL_CTX_use_PrivateKey_file(ctx, edKeyFile, WOLFSSL_FILETYPE_PEM)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server key file, "
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"Please run from wolfSSL home dir");
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#elif defined(HAVE_ED448) && !defined(WOLFSSL_SNIFFER)
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/* ed448 */
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if (wolfSSL_CTX_use_certificate_chain_file(ctx, ed448CertFile)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server cert file, "
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"Please run from wolfSSL home dir");
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if (wolfSSL_CTX_use_PrivateKey_file(ctx, ed448KeyFile,
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WOLFSSL_FILETYPE_PEM) != WOLFSSL_SUCCESS)
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err_sys("can't load server key file, "
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"Please run from wolfSSL home dir");
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#elif defined(NO_CERTS)
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/* do nothing, just don't load cert files */
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#else
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/* normal */
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if (wolfSSL_CTX_use_certificate_file(ctx, svrCertFile, WOLFSSL_FILETYPE_PEM)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server cert file, "
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"Please run from wolfSSL home dir");
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if (wolfSSL_CTX_use_PrivateKey_file(ctx, svrKeyFile, WOLFSSL_FILETYPE_PEM)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server key file, "
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"Please run from wolfSSL home dir");
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#endif
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} /* doPSK */
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#elif !defined(NO_CERTS)
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if (!doPSK) {
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if (wolfSSL_CTX_use_certificate_buffer(ctx, server_cert_der_2048,
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sizeof_server_cert_der_2048, WOLFSSL_FILETYPE_ASN1)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server cert buffer");
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if (wolfSSL_CTX_use_PrivateKey_buffer(ctx, server_key_der_2048,
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sizeof_server_key_der_2048, WOLFSSL_FILETYPE_ASN1)
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!= WOLFSSL_SUCCESS)
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err_sys("can't load server key buffer");
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}
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#endif
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#if defined(WOLFSSL_SNIFFER)
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/* Only set if not running testsuite */
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if (XSTRSTR(argv[0], "testsuite") == NULL) {
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/* don't use EDH, can't sniff tmp keys */
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wolfSSL_CTX_set_cipher_list(ctx, "AES256-SHA");
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}
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#endif
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if (doPSK) {
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#ifndef NO_PSK
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const char *defaultCipherList;
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wolfSSL_CTX_set_psk_server_callback(ctx, my_psk_server_cb);
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wolfSSL_CTX_use_psk_identity_hint(ctx, "cyassl server");
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#ifdef HAVE_NULL_CIPHER
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defaultCipherList = "PSK-NULL-SHA256";
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#elif defined(HAVE_AESGCM) && !defined(NO_DH)
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#ifdef WOLFSSL_TLS13
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defaultCipherList = "TLS13-AES128-GCM-SHA256"
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#ifndef WOLFSSL_NO_TLS12
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":DHE-PSK-AES128-GCM-SHA256"
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#endif
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;
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#else
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defaultCipherList = "DHE-PSK-AES128-GCM-SHA256";
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#endif
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#elif defined(HAVE_AESGCM) && defined(WOLFSSL_TLS13)
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defaultCipherList = "TLS13-AES128-GCM-SHA256"
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#ifndef WOLFSSL_NO_TLS12
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":PSK-AES128-GCM-SHA256"
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#endif
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;
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#else
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defaultCipherList = "PSK-AES128-CBC-SHA256";
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#endif
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if (wolfSSL_CTX_set_cipher_list(ctx, defaultCipherList) != WOLFSSL_SUCCESS)
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err_sys("server can't set cipher list 2");
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wolfSSL_CTX_set_psk_callback_ctx(ctx, (void*)defaultCipherList);
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#endif
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}
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#ifdef WOLFSSL_ASYNC_CRYPT
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ret = wolfAsync_DevOpen(&devId);
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if (ret < 0) {
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fprintf(stderr, "Async device open failed\nRunning without async\n");
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}
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wolfSSL_CTX_SetDevId(ctx, devId);
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#endif /* WOLFSSL_ASYNC_CRYPT */
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SignalReady(args, port);
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while (!shutDown) {
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WOLFSSL* ssl = NULL;
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WOLFSSL* write_ssl = NULL; /* may have separate w/ HAVE_WRITE_DUP */
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char command[SVR_COMMAND_SIZE+1];
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int clientfd;
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int firstRead = 1;
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int gotFirstG = 0;
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int err = 0;
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SOCKADDR_IN_T client;
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socklen_t client_len = sizeof(client);
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#ifndef WOLFSSL_DTLS
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clientfd = accept(sockfd, (struct sockaddr*)&client,
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(ACCEPT_THIRD_T)&client_len);
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#else
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clientfd = sockfd;
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{
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/* For DTLS, peek at the next datagram so we can get the client's
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* address and set it into the ssl object later to generate the
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* cookie. */
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int n;
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byte b[1500];
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n = (int)recvfrom(clientfd, (char*)b, sizeof(b), MSG_PEEK,
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(struct sockaddr*)&client, &client_len);
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if (n <= 0)
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err_sys("recvfrom failed");
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}
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#endif
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if (WOLFSSL_SOCKET_IS_INVALID(clientfd)) err_sys("tcp accept failed");
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ssl = wolfSSL_new(ctx);
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if (ssl == NULL) err_sys("SSL_new failed");
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wolfSSL_set_fd(ssl, clientfd);
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#ifdef WOLFSSL_DTLS
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wolfSSL_dtls_set_peer(ssl, &client, client_len);
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#endif
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#if !defined(NO_FILESYSTEM) && !defined(NO_DH) && !defined(NO_ASN)
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wolfSSL_SetTmpDH_file(ssl, dhParamFile, WOLFSSL_FILETYPE_PEM);
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#elif !defined(NO_DH)
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SetDH(ssl); /* will repick suites with DHE, higher than PSK */
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#endif
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do {
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err = 0; /* Reset error */
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ret = wolfSSL_accept(ssl);
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if (ret != WOLFSSL_SUCCESS) {
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err = wolfSSL_get_error(ssl, 0);
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#ifdef WOLFSSL_ASYNC_CRYPT
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if (err == WC_PENDING_E) {
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ret = wolfSSL_AsyncPoll(ssl, WOLF_POLL_FLAG_CHECK_HW);
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if (ret < 0) break;
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}
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#endif
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}
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} while (err == WC_PENDING_E);
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if (ret != WOLFSSL_SUCCESS) {
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fprintf(stderr, "SSL_accept error = %d, %s\n", err,
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wolfSSL_ERR_error_string(err, buffer));
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fprintf(stderr, "SSL_accept failed\n");
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wolfSSL_free(ssl);
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CloseSocket(clientfd);
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continue;
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}
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#if defined(PEER_INFO)
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showPeer(ssl);
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#endif
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#ifdef HAVE_WRITE_DUP
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write_ssl = wolfSSL_write_dup(ssl);
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if (write_ssl == NULL) {
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fprintf(stderr, "wolfSSL_write_dup failed\n");
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wolfSSL_free(ssl);
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CloseSocket(clientfd);
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continue;
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}
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#else
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write_ssl = ssl;
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#endif
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while (1) {
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int echoSz;
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do {
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err = 0; /* reset error */
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ret = wolfSSL_read(ssl, command, sizeof(command)-1);
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if (ret <= 0) {
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err = wolfSSL_get_error(ssl, 0);
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#ifdef WOLFSSL_ASYNC_CRYPT
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if (err == WC_PENDING_E) {
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ret = wolfSSL_AsyncPoll(ssl, WOLF_POLL_FLAG_CHECK_HW);
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if (ret < 0) break;
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}
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#endif
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}
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} while (err == WC_PENDING_E);
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if (ret <= 0) {
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if (err != WOLFSSL_ERROR_WANT_READ && err != WOLFSSL_ERROR_ZERO_RETURN){
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fprintf(stderr, "SSL_read echo error %d, %s!\n", err,
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wolfSSL_ERR_error_string(err, buffer));
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}
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break;
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}
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echoSz = ret;
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if (firstRead == 1) {
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firstRead = 0; /* browser may send 1 byte 'G' to start */
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if (echoSz == 1 && command[0] == 'G') {
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gotFirstG = 1;
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continue;
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}
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}
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else if (gotFirstG == 1 && strncmp(command, "ET /", 4) == 0) {
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strncpy(command, "GET", 4);
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/* fall through to normal GET */
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}
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if ( strncmp(command, "quit", 4) == 0) {
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printf("client sent quit command: shutting down!\n");
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shutDown = 1;
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break;
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}
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if ( strncmp(command, "break", 5) == 0) {
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printf("client sent break command: closing session!\n");
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break;
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}
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#ifdef PRINT_SESSION_STATS
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if ( strncmp(command, "printstats", 10) == 0) {
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wolfSSL_PrintSessionStats();
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break;
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}
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#endif
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if (strncmp(command, "GET", 3) == 0) {
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const char resp[] =
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"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"
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"<html><body BGCOLOR=\"#ffffff\"><pre>\r\n"
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"greetings from wolfSSL\r\n</pre></body></html>\r\n\r\n";
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echoSz = (int)strlen(resp) + 1;
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if (echoSz > (int)sizeof(command)) {
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/* Internal error. */
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err_sys("HTTP response greater than buffer.");
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}
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strncpy(command, resp, sizeof(command));
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do {
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err = 0; /* reset error */
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ret = wolfSSL_write(write_ssl, command, echoSz);
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if (ret <= 0) {
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err = wolfSSL_get_error(write_ssl, 0);
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#ifdef WOLFSSL_ASYNC_CRYPT
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if (err == WC_PENDING_E) {
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ret = wolfSSL_AsyncPoll(write_ssl, WOLF_POLL_FLAG_CHECK_HW);
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if (ret < 0) break;
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}
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#endif
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}
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} while (err == WC_PENDING_E);
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if (ret != echoSz) {
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fprintf(stderr, "SSL_write get error = %d, %s\n", err,
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wolfSSL_ERR_error_string(err, buffer));
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err_sys("SSL_write get failed");
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}
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break;
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}
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command[echoSz] = 0;
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#ifdef ECHO_OUT
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LIBCALL_CHECK_RET(fputs(command, fout));
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#endif
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do {
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err = 0; /* reset error */
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ret = wolfSSL_write(write_ssl, command, echoSz);
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if (ret <= 0) {
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err = wolfSSL_get_error(write_ssl, 0);
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#ifdef WOLFSSL_ASYNC_CRYPT
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if (err == WC_PENDING_E) {
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ret = wolfSSL_AsyncPoll(write_ssl, WOLF_POLL_FLAG_CHECK_HW);
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if (ret < 0) break;
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}
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#endif
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}
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} while (err == WC_PENDING_E);
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if (ret != echoSz) {
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fprintf(stderr, "SSL_write echo error = %d, %s\n", err,
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wolfSSL_ERR_error_string(err, buffer));
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err_sys("SSL_write echo failed");
|
|
}
|
|
}
|
|
#ifndef WOLFSSL_DTLS
|
|
wolfSSL_shutdown(ssl);
|
|
#endif
|
|
#ifdef HAVE_WRITE_DUP
|
|
wolfSSL_free(write_ssl);
|
|
#endif
|
|
wolfSSL_free(ssl);
|
|
CloseSocket(clientfd);
|
|
#ifdef WOLFSSL_DTLS
|
|
tcp_listen(&sockfd, &port, useAnyAddr, doDTLS, 0);
|
|
SignalReady(args, port);
|
|
#endif
|
|
}
|
|
|
|
CloseSocket(sockfd);
|
|
wolfSSL_CTX_free(ctx);
|
|
|
|
#ifdef ECHO_OUT
|
|
if (outCreated)
|
|
fclose(fout);
|
|
#endif
|
|
|
|
((func_args*)args)->return_code = 0;
|
|
|
|
#if defined(NO_MAIN_DRIVER) && defined(HAVE_ECC) && defined(FP_ECC) \
|
|
&& defined(HAVE_THREAD_LS)
|
|
wc_ecc_fp_free(); /* free per thread cache */
|
|
#endif
|
|
|
|
#ifdef WOLFSSL_TIRTOS
|
|
fdCloseSession(Task_self());
|
|
#endif
|
|
|
|
#ifdef HAVE_TEST_SESSION_TICKET
|
|
TicketCleanup();
|
|
#endif
|
|
|
|
#ifdef WOLFSSL_ASYNC_CRYPT
|
|
wolfAsync_DevClose(&devId);
|
|
#endif
|
|
|
|
WOLFSSL_RETURN_FROM_THREAD(0);
|
|
}
|
|
|
|
#endif /* !NO_WOLFSSL_SERVER */
|
|
|
|
|
|
/* so overall tests can pull in test function */
|
|
#ifndef NO_MAIN_DRIVER
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
func_args args;
|
|
|
|
#ifdef HAVE_WNR
|
|
if (wc_InitNetRandom(wnrConfig, NULL, 5000) != 0)
|
|
err_sys("Whitewood netRandom global config failed");
|
|
#endif
|
|
|
|
StartTCP();
|
|
|
|
args.argc = argc;
|
|
args.argv = argv;
|
|
args.return_code = 0;
|
|
|
|
wolfSSL_Init();
|
|
#if defined(DEBUG_WOLFSSL) && !defined(WOLFSSL_MDK_SHELL)
|
|
wolfSSL_Debugging_ON();
|
|
#endif
|
|
ChangeToWolfRoot();
|
|
#ifndef NO_WOLFSSL_SERVER
|
|
echoserver_test(&args);
|
|
#endif
|
|
wolfSSL_Cleanup();
|
|
|
|
#ifdef HAVE_WNR
|
|
if (wc_FreeNetRandom() < 0)
|
|
err_sys("Failed to free netRandom context");
|
|
#endif /* HAVE_WNR */
|
|
|
|
return args.return_code;
|
|
}
|
|
|
|
#endif /* NO_MAIN_DRIVER */
|