130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/* sctp-client-dtls.c
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*
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* Copyright (C) 2006-2020 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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/* wolfssl */
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#ifndef WOLFSSL_USER_SETTINGS
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#include <wolfssl/options.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#include <wolfssl/ssl.h>
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#if defined(WOLFSSL_SCTP) && defined(WOLFSSL_DTLS)
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/* sctp */
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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/* std */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define cacert "./certs/ca-cert.pem"
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static int err_sys(const char* msg)
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{
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perror(msg);
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exit(EXIT_FAILURE);
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}
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#endif /* WOLFSSL_SCTP && WOLFSSL_DTLS */
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int main()
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{
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#if defined(WOLFSSL_SCTP) && defined(WOLFSSL_DTLS)
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int sd = socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP);
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if (sd < 0)
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err_sys("sctp socket error");
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struct sockaddr_in sa;
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memset(&sa, 0, sizeof(sa));
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sa.sin_family = AF_INET;
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sa.sin_addr.s_addr = inet_addr("127.0.0.1");
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sa.sin_port = htons(12345);
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int ret = connect(sd, (struct sockaddr*)&sa, sizeof(sa));
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if (ret < 0)
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err_sys("sctp connect error");
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const char* response = "hello there";
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char buffer[80];
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WOLFSSL_CTX* ctx = wolfSSL_CTX_new(wolfDTLSv1_2_client_method());
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if (ctx == NULL)
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err_sys("ctx new dtls client failed");
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ret = wolfSSL_CTX_dtls_set_sctp(ctx);
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if (ret != WOLFSSL_SUCCESS)
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err_sys("set sctp mode failed");
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ret = wolfSSL_CTX_load_verify_locations(ctx, cacert, NULL);
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if (ret != WOLFSSL_SUCCESS)
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err_sys("ca cert error");
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WOLFSSL* ssl = wolfSSL_new(ctx);
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if (ssl == NULL)
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err_sys("ssl new dtls client failed");
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wolfSSL_set_fd(ssl, sd);
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ret = wolfSSL_connect(ssl);
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if (ret != WOLFSSL_SUCCESS)
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err_sys("ssl connect failed");
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printf("TLS version is %s\n", wolfSSL_get_version(ssl));
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printf("Cipher Suite is %s\n",
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wolfSSL_CIPHER_get_name(wolfSSL_get_current_cipher(ssl)));
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wolfSSL_write(ssl, response, (int)strlen(response));
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int got = wolfSSL_read(ssl, buffer, sizeof(buffer));
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if (got > 0) {
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buffer[got] = 0;
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printf("server said: %s\n", buffer);
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}
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unsigned char bigBuf[4096];
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unsigned int i;
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for (i = 0; i < (int)sizeof(bigBuf); i++)
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bigBuf[i] = (unsigned char)(i & 0xFF);
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wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
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memset(bigBuf, 0, sizeof(bigBuf));
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wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
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for (i = 0; i < sizeof(bigBuf); i++) {
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if (bigBuf[i] != (unsigned char)(i & 0xFF)) {
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printf("big message check fail\n");
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break;
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}
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}
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wolfSSL_shutdown(ssl);
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wolfSSL_free(ssl);
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wolfSSL_CTX_free(ctx);
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close(sd);
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#endif /* WOLFSSL_SCTP && WOLFSSL_DTLS */
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return 0;
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}
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