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320 lines
9.0 KiB
320 lines
9.0 KiB
/*
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* Copyright (C) 2016-2019 Felix Weinrank
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Usage: http_client remote_addr remote_port [local_port] [local_encaps_port] [remote_encaps_port] [uri]
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*
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* Example
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* Client: $ ./http_client 212.201.121.100 80 0 9899 9899 /cgi-bin/he
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* ./http_client 2a02:c6a0:4015:10::100 80 0 9899 9899 /cgi-bin/he
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*/
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#ifdef _WIN32
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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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 <stdarg.h>
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#ifndef _WIN32
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#include <unistd.h>
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#endif
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#include <sys/types.h>
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#ifndef _WIN32
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/time.h>
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#else
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#include <io.h>
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#include <sys/types.h>
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#include <sys/timeb.h>
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#endif
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#include <usrsctp.h>
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#include "programs_helper.h"
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#define RETVAL_CATCHALL 50
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#define RETVAL_TIMEOUT 60
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#define RETVAL_ECONNREFUSED 61
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int done = 0;
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static const char *request_prefix = "GET";
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static const char *request_postfix = "HTTP/1.0\r\nUser-agent: libusrsctp\r\nConnection: close\r\n\r\n";
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char request[512];
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#ifdef _WIN32
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typedef char* caddr_t;
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#endif
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static int
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receive_cb(struct socket *sock, union sctp_sockstore addr, void *data,
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size_t datalen, struct sctp_rcvinfo rcv, int flags, void *ulp_info)
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{
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if (data == NULL) {
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done = 1;
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usrsctp_close(sock);
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} else {
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if (flags & MSG_NOTIFICATION) {
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handle_notification((union sctp_notification *)data, datalen);
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} else {
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#ifdef _WIN32
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_write(_fileno(stdout), data, (unsigned int)datalen);
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#else
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if (write(fileno(stdout), data, datalen) < 0) {
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perror("write");
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}
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#endif
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}
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free(data);
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}
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return (1);
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}
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int
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main(int argc, char *argv[])
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{
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struct socket *sock;
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struct sockaddr *addr;
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socklen_t addr_len;
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struct sockaddr_in addr4;
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struct sockaddr_in6 addr6;
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struct sockaddr_in bind4;
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struct sockaddr_in6 bind6;
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struct sctp_udpencaps encaps;
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struct sctp_sndinfo sndinfo;
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struct sctp_rtoinfo rtoinfo;
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struct sctp_initmsg initmsg;
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struct sctp_event event;
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int result = 0;
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unsigned int i;
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uint8_t address_family = 0;
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uint16_t event_types[] = {SCTP_ASSOC_CHANGE,
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SCTP_PEER_ADDR_CHANGE,
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SCTP_SEND_FAILED_EVENT,
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SCTP_REMOTE_ERROR,
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SCTP_SHUTDOWN_EVENT,
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SCTP_ADAPTATION_INDICATION,
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SCTP_PARTIAL_DELIVERY_EVENT
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};
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if (argc < 3) {
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printf("Usage: http_client remote_addr remote_port [local_port] [local_encaps_port] [remote_encaps_port] [uri]\n");
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return(EXIT_FAILURE);
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}
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memset((void *)&addr4, 0, sizeof(struct sockaddr_in));
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memset((void *)&addr6, 0, sizeof(struct sockaddr_in6));
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if (inet_pton(AF_INET, argv[1], &addr4.sin_addr) == 1) {
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address_family = AF_INET;
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addr = (struct sockaddr *)&addr4;
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addr_len = sizeof(addr4);
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#ifdef HAVE_SIN_LEN
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addr4.sin_len = sizeof(struct sockaddr_in);
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#endif
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addr4.sin_family = AF_INET;
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addr4.sin_port = htons(atoi(argv[2]));
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} else if (inet_pton(AF_INET6, argv[1], &addr6.sin6_addr) == 1) {
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address_family = AF_INET6;
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addr = (struct sockaddr *)&addr6;
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addr_len = sizeof(addr6);
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#ifdef HAVE_SIN6_LEN
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addr6.sin6_len = sizeof(struct sockaddr_in6);
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#endif
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addr6.sin6_family = AF_INET6;
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addr6.sin6_port = htons(atoi(argv[2]));
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} else {
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printf("Unsupported destination address - use IPv4 or IPv6 address\n");
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result = RETVAL_CATCHALL;
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goto out;
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}
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if (argc > 4) {
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usrsctp_init(atoi(argv[4]), NULL, debug_printf_stack);
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} else {
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usrsctp_init(9899, NULL, debug_printf_stack);
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}
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#ifdef SCTP_DEBUG
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usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_ALL);
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#endif
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usrsctp_sysctl_set_sctp_blackhole(2);
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usrsctp_sysctl_set_sctp_no_csum_on_loopback(0);
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if ((sock = usrsctp_socket(address_family, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, NULL)) == NULL) {
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perror("usrsctp_socket");
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result = RETVAL_CATCHALL;
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goto out;
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}
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memset(&event, 0, sizeof(event));
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event.se_assoc_id = SCTP_ALL_ASSOC;
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event.se_on = 1;
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for (i = 0; i < sizeof(event_types) / sizeof(uint16_t); i++) {
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event.se_type = event_types[i];
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if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(event)) < 0) {
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perror("setsockopt SCTP_EVENT");
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}
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}
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rtoinfo.srto_assoc_id = 0;
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rtoinfo.srto_initial = 1000;
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rtoinfo.srto_min = 1000;
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rtoinfo.srto_max = 8000;
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if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_RTOINFO, (const void *)&rtoinfo, (socklen_t)sizeof(struct sctp_rtoinfo)) < 0) {
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perror("setsockopt");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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initmsg.sinit_num_ostreams = 1;
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initmsg.sinit_max_instreams = 1;
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initmsg.sinit_max_attempts = 5;
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initmsg.sinit_max_init_timeo = 4000;
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if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_INITMSG, (const void *)&initmsg, (socklen_t)sizeof(struct sctp_initmsg)) < 0) {
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perror("setsockopt");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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if (argc > 3) {
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if (address_family == AF_INET) {
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memset((void *)&bind4, 0, sizeof(struct sockaddr_in));
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#ifdef HAVE_SIN_LEN
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bind4.sin_len = sizeof(struct sockaddr_in6);
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#endif
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bind4.sin_family = AF_INET;
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bind4.sin_port = htons(atoi(argv[3]));
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bind4.sin_addr.s_addr = htonl(INADDR_ANY);
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if (usrsctp_bind(sock, (struct sockaddr *)&bind4, sizeof(bind4)) < 0) {
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perror("bind");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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} else {
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memset((void *)&bind6, 0, sizeof(struct sockaddr_in6));
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#ifdef HAVE_SIN6_LEN
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bind6.sin6_len = sizeof(struct sockaddr_in6);
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#endif
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bind6.sin6_family = AF_INET6;
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bind6.sin6_port = htons(atoi(argv[3]));
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bind6.sin6_addr = in6addr_any;
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if (usrsctp_bind(sock, (struct sockaddr *)&bind6, sizeof(bind6)) < 0) {
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perror("bind");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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}
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}
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if (argc > 5) {
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memset(&encaps, 0, sizeof(struct sctp_udpencaps));
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encaps.sue_address.ss_family = address_family;
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encaps.sue_port = htons(atoi(argv[5]));
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if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_REMOTE_UDP_ENCAPS_PORT, (const void *)&encaps, (socklen_t)sizeof(struct sctp_udpencaps)) < 0) {
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perror("setsockopt");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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}
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if (argc > 6) {
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#ifdef _WIN32
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if (_snprintf(request, sizeof(request), "%s %s %s", request_prefix, argv[6], request_postfix) < 0) {
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#else
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if (snprintf(request, sizeof(request), "%s %s %s", request_prefix, argv[6], request_postfix) < 0) {
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#endif
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request[0] = '\0';
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}
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} else {
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#ifdef _WIN32
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if (_snprintf(request, sizeof(request), "%s %s %s", request_prefix, "/", request_postfix) < 0) {
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#else
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if (snprintf(request, sizeof(request), "%s %s %s", request_prefix, "/", request_postfix) < 0) {
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#endif
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request[0] = '\0';
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}
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}
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printf("\nHTTP request:\n%s\n", request);
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printf("\nHTTP response:\n");
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if (usrsctp_connect(sock, addr, addr_len) < 0) {
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if (errno == ECONNREFUSED) {
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result = RETVAL_ECONNREFUSED;
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} else if (errno == ETIMEDOUT) {
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result = RETVAL_TIMEOUT;
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} else {
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result = RETVAL_CATCHALL;
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}
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perror("usrsctp_connect");
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usrsctp_close(sock);
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goto out;
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}
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memset(&sndinfo, 0, sizeof(struct sctp_sndinfo));
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sndinfo.snd_ppid = htonl(63); /* PPID for HTTP/SCTP */
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/* send GET request */
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if (usrsctp_sendv(sock, request, strlen(request), NULL, 0, &sndinfo, sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
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perror("usrsctp_sendv");
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usrsctp_close(sock);
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result = RETVAL_CATCHALL;
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goto out;
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}
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while (!done) {
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#ifdef _WIN32
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Sleep(1*1000);
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#else
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sleep(1);
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#endif
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}
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out:
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while (usrsctp_finish() != 0) {
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#ifdef _WIN32
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Sleep(1000);
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#else
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sleep(1);
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#endif
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}
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printf("Finished, returning with %d\n", result);
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return (result);
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}
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