organizing
Kaleb Himes
parent
6c00d95e27
commit
0abd32a97c
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@ -9,15 +9,13 @@ OBJ = echoserver.o
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#LIBS=-lsocket
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%.o: %.c $(DEPS)
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$(CC) -c -o $@ $< $(CFLAGS)
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all: server-udp server-dtls
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all: server
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server-udp: server-udp.c
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$(CC) -Wall -o server-udp server-udp.c -I ../include -lcyassl
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server: server-dtls.c
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$(CC) -Wall -DCYASSL_DTLS -o server server-dtls.c -I ../include -lcyassl
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server-dtls: server-dtls.c
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$(CC) -Wall -DCYASSL_DTLS -o server-dtls server-dtls.c -I ../include -lcyassl
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.PHONY: clean
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clean:
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-rm -f *.o server-udp server-dtls
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-rm -f *.o server
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@ -92,25 +92,25 @@ int main(int argc, char** argv)
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}
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printf("CTX set to DTLS 1.2\n");
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if (CyaSSL_CTX_load_verify_locations(ctx,"certs/ca-cert.pem",0) !=
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if (CyaSSL_CTX_load_verify_locations(ctx,"../certs/ca-cert.pem",0) !=
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SSL_SUCCESS) {
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fprintf(stderr, "Error loading certs/ca-cert.pem, "
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fprintf(stderr, "Error loading ../certs/ca-cert.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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printf("Loaded CA certs\n");
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if (CyaSSL_CTX_use_certificate_file(ctx,"certs/server-cert.pem",
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if (CyaSSL_CTX_use_certificate_file(ctx,"../certs/server-cert.pem",
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SSL_FILETYPE_PEM) != SSL_SUCCESS) {
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fprintf(stderr, "Error loading certs/server-cert.pem, "
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fprintf(stderr, "Error loading ../certs/server-cert.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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printf("Loaded server certs\n");
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if (CyaSSL_CTX_use_PrivateKey_file(ctx,"certs/server-key.pem",
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if (CyaSSL_CTX_use_PrivateKey_file(ctx,"../certs/server-key.pem",
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SSL_FILETYPE_PEM) != SSL_SUCCESS) {
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fprintf(stderr, "Error loading certs/server-key.pem, "
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fprintf(stderr, "Error loading ../certs/server-key.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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@ -0,0 +1,21 @@
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DEPS = ../include/unp.h
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CC=gcc
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CFLAGS=-Wall -I ../include -DCYASSL_DTLS
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OBJ = echoserver.o
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#if you are on a sunOS (System V) machine, you'll need to uncomment
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#the next line.
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#LIBS=-lsocket
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%.o: %.c $(DEPS)
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$(CC) -c -o $@ $< $(CFLAGS)
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all: server
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server: server-dtls-nonblocking.c
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$(CC) -Wall -DCYASSL_DTLS -o server server-dtls-nonblocking.c -I ../include -lcyassl
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.PHONY: clean
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clean:
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-rm -f *.o server
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@ -0,0 +1,257 @@
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/* server-dtls.c
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*
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* Copyright (C) 2006-2014 wolfSSL Inc.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA
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*=============================================================================
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*
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* Bare-bones example of a DTLS server for instructional/learning purposes.
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* Utilizes DTLS 1.2.
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*/
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#include <stdio.h> /* standard in/out procedures */
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#include <stdlib.h> /* defines system calls */
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#include <string.h> /* necessary for memset */
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#include <netdb.h>
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#include <sys/socket.h> /* used for all socket calls */
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#include <netinet/in.h> /* used for sockaddr_in */
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#include <arpa/inet.h>
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#include <cyassl/ssl.h>
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#include <errno.h>
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#include <signal.h>
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#include <unistd.h>
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#define SERV_PORT 11111 /* define our server port number */
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#define MSGLEN 4096
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static int cleanup; /* To handle shutdown */
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void sig_handler(const int sig)
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{
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printf("\nSIGINT handled.\n");
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cleanup = 1;
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exit(0);
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}
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static void err_sys(const char* msg)
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{
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printf("error: %s\n", msg);
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if (msg)
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exit(EXIT_FAILURE);
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}
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int main(int argc, char** argv)
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{
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/* CREATE THE SOCKET */
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char ack[] = "I hear you fashizzle!";
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struct sockaddr_in servaddr; /* our server's address */
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struct sockaddr_in cliaddr; /* the client's address */
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int listenfd = 0; /* Initialize our socket */
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socklen_t clilen; /* length of address' */
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int recvlen = 0; /* length of message */
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char buff[MSGLEN]; /* the incoming message */
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struct sigaction act, oact; /* structures for signal handling */
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/*
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* Define a signal handler for when the user closes the program
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* with Ctrl-C. Also, turn off SA_RESTART so that the OS doesn't
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* restart the call to accept() after the signal is handled.
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*/
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act.sa_handler = sig_handler;
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sigemptyset(&act.sa_mask);
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act.sa_flags = 0;
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sigaction(SIGINT, &act, &oact);
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CyaSSL_Debugging_ON();
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CyaSSL_Init(); /* Initialize CyaSSL */
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CYASSL_CTX* ctx;
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if ( (ctx = CyaSSL_CTX_new(CyaDTLSv1_2_server_method())) == NULL){
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fprintf(stderr, "CyaSSL_CTX_new error.\n");
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exit(EXIT_FAILURE);
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}
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printf("CTX set to DTLS 1.2\n");
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if (CyaSSL_CTX_load_verify_locations(ctx,"../certs/ca-cert.pem",0) !=
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SSL_SUCCESS) {
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fprintf(stderr, "Error loading ../certs/ca-cert.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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printf("Loaded CA certs\n");
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if (CyaSSL_CTX_use_certificate_file(ctx,"../certs/server-cert.pem",
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SSL_FILETYPE_PEM) != SSL_SUCCESS) {
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fprintf(stderr, "Error loading ../certs/server-cert.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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printf("Loaded server certs\n");
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if (CyaSSL_CTX_use_PrivateKey_file(ctx,"../certs/server-key.pem",
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SSL_FILETYPE_PEM) != SSL_SUCCESS) {
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fprintf(stderr, "Error loading ../certs/server-key.pem, "
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"please check the file.\n");
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exit(EXIT_FAILURE);
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}
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printf("Loaded server keys\n");
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/* BEGIN: avoid valgrind error when using DTLS v1.2 and AES */
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int ret;
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ret = CyaSSL_CTX_set_cipher_list(ctx, "DES-CBC3-SHA");
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if(ret == SSL_SUCCESS)
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printf("ret successfully set to \"DES-CBC3-SHA\"\n");
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/* END: avoid valgrind error */
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while (cleanup != 1) {
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if ( (listenfd = socket(AF_INET, SOCK_DGRAM, 0) ) < 0 ) {
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err_sys("cannot create socket");
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return 0;
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}
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printf("Socket allocated\n");
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/* INADDR_ANY=IPaddr, socket = 11111, modify SERV_PORT to change */
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memset((char *)&servaddr, 0, sizeof(servaddr));
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/* host-to-network-long conversion (htonl) */
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/* host-to-network-short conversion (htons) */
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servaddr.sin_family = AF_INET;
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servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
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servaddr.sin_port = htons(SERV_PORT);
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/* Eliminate socket already in use error */
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int res = 1;
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int on = 1;
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socklen_t len = sizeof(on);
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res = setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, len);
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if (res < 0) {
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err_sys("setsockopt SO_REUSEADDR failed\n");
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}
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/*Bind Socket*/
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if (bind(listenfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0) {
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err_sys("bind failed");
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return 0;
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}
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printf("Socket bind complete\n");
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printf("Awaiting client connection on port %d\n", SERV_PORT);
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CYASSL* ssl; /* initialize arg */
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clilen = sizeof(cliaddr); /* set clilen to |cliaddr| */
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unsigned char b[1500];
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int connfd = 0;
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connfd = (int)recvfrom(listenfd, (char *)&b, sizeof(b), MSG_PEEK,
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(struct sockaddr*)&cliaddr, &clilen);
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if (connfd < 0){
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printf("No clients in que, enter idle state\n");
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continue;
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}
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else if (connfd > 0) {
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if (connect(listenfd, (const struct sockaddr *)&cliaddr,
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sizeof(cliaddr)) != 0)
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err_sys("udp connect failed");
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}
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else err_sys("recvfrom failed");
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printf("Connected!\n");
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/* Create the CYASSL Object */
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if (( ssl = CyaSSL_new(ctx) ) == NULL) {
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fprintf(stderr, "CyaSSL_new error.\n");
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exit(EXIT_FAILURE);
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}
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/******/printf("STEP 1\n");
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/* set the session ssl to client connection port */
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CyaSSL_set_fd(ssl, listenfd);
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/******/printf("STEP 2\n");
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if (CyaSSL_accept(ssl) != SSL_SUCCESS) {
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int err = CyaSSL_get_error(ssl, 0);
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char buffer[80];
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printf("error = %d, %s\n", err, CyaSSL_ERR_error_string(err, buffer));
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buffer[80]= 0;
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err_sys("SSL_accept failed\n");
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}
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/*******/printf("STEP 3\n");
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if (( recvlen = CyaSSL_read(ssl, buff, sizeof(buff)-1)) > 0){
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printf("heard %d bytes\n", recvlen);
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buff[recvlen] = 0;
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printf("I heard this: \"%s\"\n", buff);
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}
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/*******/printf("STEP 4\n");
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if (recvlen < 0) {
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int readErr = CyaSSL_get_error(ssl, 0);
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if(readErr != SSL_ERROR_WANT_READ)
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err_sys("SSL_read failed");
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}
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/******/printf("STEP 5\n");
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if (CyaSSL_write(ssl, ack, sizeof(ack)) < 0) {
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err_sys("CyaSSL_write fail");
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}
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else
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printf("lost the connection to client\n");
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printf("reply sent \"%s\"\n", ack);
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CyaSSL_set_fd(ssl, 0);
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CyaSSL_shutdown(ssl);
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CyaSSL_free(ssl);
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printf("Client left return to idle state\n");
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continue;
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}
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CyaSSL_CTX_free(ctx);
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return(0);
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}
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@ -1,7 +0,0 @@
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!_TAG_FILE_FORMAT 2 /extended format; --format=1 will not append ;" to lines/
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!_TAG_FILE_SORTED 1 /0=unsorted, 1=sorted, 2=foldcase/
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!_TAG_PROGRAM_AUTHOR Darren Hiebert /dhiebert@users.sourceforge.net/
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!_TAG_PROGRAM_NAME Exuberant Ctags //
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!_TAG_PROGRAM_URL http://ctags.sourceforge.net /official site/
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!_TAG_PROGRAM_VERSION 5.9~svn20110310 //
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main server-udp.c /^main(void)$/;" f
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@ -0,0 +1,20 @@
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DEPS = ../include/unp.h
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CC=gcc
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CFLAGS=-Wall -I ../include -DCYASSL_DTLS
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OBJ = echoserver.o
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#if you are on a sunOS (System V) machine, you'll need to uncomment
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#the next line.
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#LIBS=-lsocket
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%.o: %.c $(DEPS)
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$(CC) -c -o $@ $< $(CFLAGS)
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all: server
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server: server-udp.c
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$(CC) -Wall -o server server-udp.c -I ../include -lcyassl
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.PHONY: clean
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clean:
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-rm -f *.o server
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