mirrors/wolfssl
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
05a35a8332
wolfssl/examples/echoserver/echoserver.c
John Safranek 46e92e0211 DTLS-SCTP example client and server 
1. Update the example client and server to test DTLS-SCTP.
2. Modify the test.h functions for setting up connections to allow
for a SCTP option.
3. Update other examples to use the new test.h functions.
4. Removed some prototypes in the client header file were some functions
that should have been static to the client.c file and made them static.
2016-08-26 19:58:36 -07:00

452 lines
13 KiB
C
Raw Blame History

/* echoserver.c
*
* Copyright (C) 2006-2016 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cyassl/ssl.h> /* name change portability layer */
#include <cyassl/ctaocrypt/settings.h>
#ifdef HAVE_ECC
#include <cyassl/ctaocrypt/ecc.h> /* ecc_fp_free */
#endif
#if defined(WOLFSSL_MDK_ARM) || defined(WOLFSSL_KEIL_TCP_NET)
#include <stdio.h>
#include <string.h>
#if !defined(WOLFSSL_MDK_ARM)
#include "cmsis_os.h"
#include "rl_fs.h"
#include "rl_net.h"
#else
#include "rtl.h"
#include "wolfssl_MDK_ARM.h"
#endif
#endif
#include <cyassl/ssl.h>
#include <cyassl/test.h>
#ifndef NO_MAIN_DRIVER
#define ECHO_OUT
#endif
#include "examples/echoserver/echoserver.h"
#ifdef WOLFSSL_ASYNC_CRYPT
static int devId = INVALID_DEVID;
#endif
#define SVR_COMMAND_SIZE 256
static void SignalReady(void* args, word16 port)
{
#if defined(_POSIX_THREADS) && defined(NO_MAIN_DRIVER) && !defined(__MINGW32__)
/* signal ready to tcp_accept */
func_args* server_args = (func_args*)args;
tcp_ready* ready = server_args->signal;
pthread_mutex_lock(&ready->mutex);
ready->ready = 1;
ready->port = port;
pthread_cond_signal(&ready->cond);
pthread_mutex_unlock(&ready->mutex);
#endif
(void)args;
(void)port;
}
THREAD_RETURN CYASSL_THREAD echoserver_test(void* args)
{
SOCKET_T sockfd = 0;
CYASSL_METHOD* method = 0;
CYASSL_CTX* ctx = 0;
int ret = 0;
int doDTLS = 0;
int doPSK = 0;
int outCreated = 0;
int shutDown = 0;
int useAnyAddr = 0;
word16 port;
int argc = ((func_args*)args)->argc;
char** argv = ((func_args*)args)->argv;
#ifdef ECHO_OUT
FILE* fout = stdout;
if (argc >= 2) {
fout = fopen(argv[1], "w");
outCreated = 1;
}
if (!fout) err_sys("can't open output file");
#endif
(void)outCreated;
(void)argc;
(void)argv;
((func_args*)args)->return_code = -1; /* error state */
#ifdef CYASSL_DTLS
doDTLS = 1;
#endif
#ifdef CYASSL_LEANPSK
doPSK = 1;
#endif
#if defined(NO_RSA) && !defined(HAVE_ECC)
doPSK = 1;
#endif
#if defined(NO_MAIN_DRIVER) && !defined(CYASSL_SNIFFER) && \
!defined(WOLFSSL_MDK_SHELL) && !defined(CYASSL_TIRTOS) && \
!defined(USE_WINDOWS_API)
/* Let tcp_listen assign port */
port = 0;
#else
/* Use default port */
port = wolfSSLPort;
#endif
#if defined(USE_ANY_ADDR)
useAnyAddr = 1;
#endif
#ifdef CYASSL_TIRTOS
fdOpenSession(Task_self());
#endif
tcp_listen(&sockfd, &port, useAnyAddr, doDTLS, 0);
#if defined(CYASSL_DTLS)
method = CyaDTLSv1_2_server_method();
#elif !defined(NO_TLS)
method = CyaSSLv23_server_method();
#elif defined(WOLFSSL_ALLOW_SSLV3)
method = CyaSSLv3_server_method();
#else
#error "no valid server method built in"
#endif
ctx = CyaSSL_CTX_new(method);
/* CyaSSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); */
#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
CyaSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif
#if defined(HAVE_SESSION_TICKET) && defined(HAVE_CHACHA) && \
defined(HAVE_POLY1305)
if (TicketInit() != 0)
err_sys("unable to setup Session Ticket Key context");
wolfSSL_CTX_set_TicketEncCb(ctx, myTicketEncCb);
#endif
#ifndef NO_FILESYSTEM
if (doPSK == 0) {
#if defined(HAVE_NTRU) && defined(WOLFSSL_STATIC_RSA)
/* ntru */
if (CyaSSL_CTX_use_certificate_file(ctx, ntruCert, SSL_FILETYPE_PEM)
!= SSL_SUCCESS)
err_sys("can't load ntru cert file, "
"Please run from wolfSSL home dir");
if (CyaSSL_CTX_use_NTRUPrivateKey_file(ctx, ntruKey)
!= SSL_SUCCESS)
err_sys("can't load ntru key file, "
"Please run from wolfSSL home dir");
#elif defined(HAVE_ECC) && !defined(CYASSL_SNIFFER)
/* ecc */
if (CyaSSL_CTX_use_certificate_file(ctx, eccCert, SSL_FILETYPE_PEM)
!= SSL_SUCCESS)
err_sys("can't load server cert file, "
"Please run from wolfSSL home dir");
if (CyaSSL_CTX_use_PrivateKey_file(ctx, eccKey, SSL_FILETYPE_PEM)
!= SSL_SUCCESS)
err_sys("can't load server key file, "
"Please run from wolfSSL home dir");
#elif defined(NO_CERTS)
/* do nothing, just don't load cert files */
#else
/* normal */
if (CyaSSL_CTX_use_certificate_file(ctx, svrCert, SSL_FILETYPE_PEM)
!= SSL_SUCCESS)
err_sys("can't load server cert file, "
"Please run from wolfSSL home dir");
if (CyaSSL_CTX_use_PrivateKey_file(ctx, svrKey, SSL_FILETYPE_PEM)
!= SSL_SUCCESS)
err_sys("can't load server key file, "
"Please run from wolfSSL home dir");
#endif
} /* doPSK */
#elif !defined(NO_CERTS)
if (!doPSK) {
load_buffer(ctx, svrCert, WOLFSSL_CERT);
load_buffer(ctx, svrKey, WOLFSSL_KEY);
}
#endif
#if defined(CYASSL_SNIFFER)
/* don't use EDH, can't sniff tmp keys */
CyaSSL_CTX_set_cipher_list(ctx, "AES256-SHA");
#endif
if (doPSK) {
#ifndef NO_PSK
const char *defaultCipherList;
CyaSSL_CTX_set_psk_server_callback(ctx, my_psk_server_cb);
CyaSSL_CTX_use_psk_identity_hint(ctx, "cyassl server");
#ifdef HAVE_NULL_CIPHER
defaultCipherList = "PSK-NULL-SHA256";
#elif defined(HAVE_AESGCM) && !defined(NO_DH)
defaultCipherList = "DHE-PSK-AES128-GCM-SHA256";
#else
defaultCipherList = "PSK-AES128-CBC-SHA256";
#endif
if (CyaSSL_CTX_set_cipher_list(ctx, defaultCipherList) != SSL_SUCCESS)
err_sys("server can't set cipher list 2");
#endif
}
#ifdef WOLFSSL_ASYNC_CRYPT
ret = wolfAsync_DevOpen(&devId);
if (ret != 0) {
err_sys("Async device open failed");
}
wolfSSL_CTX_UseAsync(ctx, devId);
#endif /* WOLFSSL_ASYNC_CRYPT */
SignalReady(args, port);
while (!shutDown) {
CYASSL* ssl = 0;
char command[SVR_COMMAND_SIZE+1];
int echoSz = 0;
int clientfd;
int firstRead = 1;
int gotFirstG = 0;
int err = 0;
SOCKADDR_IN_T client;
socklen_t client_len = sizeof(client);
#ifndef CYASSL_DTLS
clientfd = accept(sockfd, (struct sockaddr*)&client,
(ACCEPT_THIRD_T)&client_len);
#else
clientfd = sockfd;
{
/* For DTLS, peek at the next datagram so we can get the client's
* address and set it into the ssl object later to generate the
* cookie. */
int n;
byte b[1500];
n = (int)recvfrom(clientfd, (char*)b, sizeof(b), MSG_PEEK,
(struct sockaddr*)&client, &client_len);
if (n <= 0)
err_sys("recvfrom failed");
}
#endif
if (WOLFSSL_SOCKET_IS_INVALID(clientfd)) err_sys("tcp accept failed");
ssl = CyaSSL_new(ctx);
if (ssl == NULL) err_sys("SSL_new failed");
CyaSSL_set_fd(ssl, clientfd);
#ifdef CYASSL_DTLS
wolfSSL_dtls_set_peer(ssl, &client, client_len);
#endif
#if !defined(NO_FILESYSTEM) && !defined(NO_DH) && !defined(NO_ASN)
CyaSSL_SetTmpDH_file(ssl, dhParam, SSL_FILETYPE_PEM);
#elif !defined(NO_DH)
SetDH(ssl); /* will repick suites with DHE, higher than PSK */
#endif
do {
#ifdef WOLFSSL_ASYNC_CRYPT
if (err == WC_PENDING_E) {
ret = wolfSSL_AsyncPoll(ssl, WOLF_POLL_FLAG_CHECK_HW);
if (ret < 0) { break; } else if (ret == 0) { continue; }
}
#endif
err = 0; /* Reset error */
ret = CyaSSL_accept(ssl);
if (ret != SSL_SUCCESS) {
err = CyaSSL_get_error(ssl, 0);
}
} while (ret != SSL_SUCCESS && err == WC_PENDING_E);
if (ret != SSL_SUCCESS) {
char buffer[CYASSL_MAX_ERROR_SZ];
err = CyaSSL_get_error(ssl, 0);
printf("error = %d, %s\n", err, CyaSSL_ERR_error_string(err, buffer));
printf("SSL_accept failed\n");
CyaSSL_free(ssl);
CloseSocket(clientfd);
continue;
}
#if defined(PEER_INFO)
showPeer(ssl);
#endif
while ( (echoSz = CyaSSL_read(ssl, command, sizeof(command)-1)) > 0) {
if (firstRead == 1) {
firstRead = 0; /* browser may send 1 byte 'G' to start */
if (echoSz == 1 && command[0] == 'G') {
gotFirstG = 1;
continue;
}
}
else if (gotFirstG == 1 && strncmp(command, "ET /", 4) == 0) {
strncpy(command, "GET", 4);
/* fall through to normal GET */
}
if ( strncmp(command, "quit", 4) == 0) {
printf("client sent quit command: shutting down!\n");
shutDown = 1;
break;
}
if ( strncmp(command, "break", 5) == 0) {
printf("client sent break command: closing session!\n");
break;
}
#ifdef PRINT_SESSION_STATS
if ( strncmp(command, "printstats", 10) == 0) {
CyaSSL_PrintSessionStats();
break;
}
#endif
if ( strncmp(command, "GET", 3) == 0) {
char type[] = "HTTP/1.0 200 ok\r\nContent-type:"
" text/html\r\n\r\n";
char header[] = "<html><body BGCOLOR=\"#ffffff\">\n<pre>\n";
char body[] = "greetings from wolfSSL\n";
char footer[] = "</body></html>\r\n\r\n";
strncpy(command, type, sizeof(type));
echoSz = sizeof(type) - 1;
strncpy(&command[echoSz], header, sizeof(header));
echoSz += (int)sizeof(header) - 1;
strncpy(&command[echoSz], body, sizeof(body));
echoSz += (int)sizeof(body) - 1;
strncpy(&command[echoSz], footer, sizeof(footer));
echoSz += (int)sizeof(footer);
if (CyaSSL_write(ssl, command, echoSz) != echoSz)
err_sys("SSL_write failed");
break;
}
command[echoSz] = 0;
#ifdef ECHO_OUT
fputs(command, fout);
#endif
if (CyaSSL_write(ssl, command, echoSz) != echoSz)
err_sys("SSL_write failed");
}
#ifndef CYASSL_DTLS
CyaSSL_shutdown(ssl);
#endif
CyaSSL_free(ssl);
CloseSocket(clientfd);
#ifdef CYASSL_DTLS
tcp_listen(&sockfd, &port, useAnyAddr, doDTLS, 0);
SignalReady(args, port);
#endif
}
CloseSocket(sockfd);
CyaSSL_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)
ecc_fp_free(); /* free per thread cache */
#endif
#ifdef CYASSL_TIRTOS
fdCloseSession(Task_self());
#endif
#if defined(HAVE_SESSION_TICKET) && defined(HAVE_CHACHA) && \
defined(HAVE_POLY1305)
TicketCleanup();
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
wolfAsync_DevClose(&devId);
#endif
#ifndef CYASSL_TIRTOS
return 0;
#endif
}
/* 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;
CyaSSL_Init();
#if defined(DEBUG_CYASSL) && !defined(CYASSL_MDK_SHELL)
CyaSSL_Debugging_ON();
#endif
ChangeToWolfRoot();
echoserver_test(&args);
CyaSSL_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 */
Reference in New Issue View Git Blame Copy Permalink