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595 lines
16 KiB
595 lines
16 KiB
/*
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* Copyright (C) 2011-2013 Michael Tuexen
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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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#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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#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 <errno.h>
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#include <pthread.h>
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#include <unistd.h>
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#else
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#include <winsock2.h>
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#include <ws2tcpip.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 MAX_PACKET_SIZE (1<<16)
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#define LINE_LENGTH (1<<20)
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#define DISCARD_PPID 39
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#define NUMBER_OF_STEPS 10
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#ifdef _WIN32
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static DWORD WINAPI
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#else
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static void *
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#endif
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handle_packets(void *arg)
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{
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#ifdef _WIN32
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SOCKET *fdp;
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#else
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int *fdp;
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#endif
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char *dump_buf;
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ssize_t length;
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char buf[MAX_PACKET_SIZE];
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#ifdef _WIN32
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fdp = (SOCKET *)arg;
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#else
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fdp = (int *)arg;
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#endif
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for (;;) {
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#if defined(__NetBSD__)
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pthread_testcancel();
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#endif
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length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
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if (length > 0) {
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if ((dump_buf = usrsctp_dumppacket(buf, (size_t)length, SCTP_DUMP_INBOUND)) != NULL) {
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/* fprintf(stderr, "%s", dump_buf); */
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usrsctp_freedumpbuffer(dump_buf);
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}
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usrsctp_conninput(fdp, buf, (size_t)length, 0);
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}
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}
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#ifdef _WIN32
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return 0;
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#else
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return (NULL);
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#endif
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}
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static int
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conn_output(void *addr, void *buf, size_t length, uint8_t tos, uint8_t set_df)
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{
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char *dump_buf;
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#ifdef _WIN32
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SOCKET *fdp;
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#else
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int *fdp;
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#endif
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#ifdef _WIN32
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fdp = (SOCKET *)addr;
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#else
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fdp = (int *)addr;
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#endif
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if ((dump_buf = usrsctp_dumppacket(buf, length, SCTP_DUMP_OUTBOUND)) != NULL) {
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/* fprintf(stderr, "%s", dump_buf); */
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usrsctp_freedumpbuffer(dump_buf);
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}
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#ifdef _WIN32
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if (send(*fdp, buf, (int)length, 0) == SOCKET_ERROR) {
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return (WSAGetLastError());
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#else
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if (send(*fdp, buf, length, 0) < 0) {
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return (errno);
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#endif
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} else {
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return (0);
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}
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}
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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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debug_printf("MSG RCV: %p received on sock = %p.\n", data, (void *)sock);
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if (data) {
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if ((flags & MSG_NOTIFICATION) == 0) {
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debug_printf("MSG RCV: length %d, addr %p:%u, stream %u, SSN %u, TSN %u, PPID %u, context %u, %s%s.\n",
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(int)datalen,
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addr.sconn.sconn_addr,
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ntohs(addr.sconn.sconn_port),
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rcv.rcv_sid,
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rcv.rcv_ssn,
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rcv.rcv_tsn,
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ntohl(rcv.rcv_ppid),
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rcv.rcv_context,
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(rcv.rcv_flags & SCTP_UNORDERED) ? "unordered" : "ordered",
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(flags & MSG_EOR) ? ", EOR" : "");
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}
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free(data);
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} else {
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usrsctp_deregister_address(ulp_info);
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usrsctp_close(sock);
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}
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return (1);
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}
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#if 0
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static void
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print_addresses(struct socket *sock)
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{
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int i, n;
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struct sockaddr *addrs, *addr;
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n = usrsctp_getladdrs(sock, 0, &addrs);
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addr = addrs;
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for (i = 0; i < n; i++) {
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switch (addr->sa_family) {
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case AF_INET:
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{
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struct sockaddr_in *sin;
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char buf[INET_ADDRSTRLEN];
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const char *name;
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sin = (struct sockaddr_in *)addr;
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name = inet_ntop(AF_INET, &sin->sin_addr, buf, INET_ADDRSTRLEN);
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debug_printf("%s:%d", name, ntohs(sin->sin_port));
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break;
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}
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case AF_INET6:
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{
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struct sockaddr_in6 *sin6;
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char buf[INET6_ADDRSTRLEN];
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const char *name;
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sin6 = (struct sockaddr_in6 *)addr;
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name = inet_ntop(AF_INET6, &sin6->sin6_addr, buf, INET6_ADDRSTRLEN);
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debug_printf("%s:%d", name, ntohs(sin6->sin6_port));
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break;
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}
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case AF_CONN:
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{
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struct sockaddr_conn *sconn;
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sconn = (struct sockaddr_conn *)addr;
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debug_printf("%p:%d", sconn->sconn_addr, ntohs(sconn->sconn_port));
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break;
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}
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default:
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debug_printf("Unknown family: %d", addr->sa_family);
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break;
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}
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addr = (struct sockaddr *)((caddr_t)addr + addr->sa_len);
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if (i != n - 1) {
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debug_printf(",");
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}
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}
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if (n > 0) {
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usrsctp_freeladdrs(addrs);
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}
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debug_printf("<->");
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n = usrsctp_getpaddrs(sock, 0, &addrs);
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addr = addrs;
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for (i = 0; i < n; i++) {
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switch (addr->sa_family) {
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case AF_INET:
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{
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struct sockaddr_in *sin;
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char buf[INET_ADDRSTRLEN];
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const char *name;
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sin = (struct sockaddr_in *)addr;
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name = inet_ntop(AF_INET, &sin->sin_addr, buf, INET_ADDRSTRLEN);
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debug_printf("%s:%d", name, ntohs(sin->sin_port));
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break;
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}
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case AF_INET6:
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{
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struct sockaddr_in6 *sin6;
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char buf[INET6_ADDRSTRLEN];
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const char *name;
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sin6 = (struct sockaddr_in6 *)addr;
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name = inet_ntop(AF_INET6, &sin6->sin6_addr, buf, INET6_ADDRSTRLEN);
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debug_printf("%s:%d", name, ntohs(sin6->sin6_port));
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break;
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}
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case AF_CONN:
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{
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struct sockaddr_conn *sconn;
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sconn = (struct sockaddr_conn *)addr;
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debug_printf("%p:%d", sconn->sconn_addr, ntohs(sconn->sconn_port));
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break;
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}
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default:
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debug_printf("Unknown family: %d", addr->sa_family);
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break;
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}
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addr = (struct sockaddr *)((caddr_t)addr + addr->sa_len);
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if (i != n - 1) {
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debug_printf(",");
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}
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}
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if (n > 0) {
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usrsctp_freepaddrs(addrs);
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}
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debug_printf("\n");
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}
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#endif
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int
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main(int argc, char *argv[])
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{
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struct sockaddr_in sin_s, sin_c;
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struct sockaddr_conn sconn;
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struct sctp_paddrparams paddrparams;
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#ifdef _WIN32
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SOCKET fd_c, fd_s;
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#else
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int fd_c, fd_s, rc;
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#endif
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struct socket *s_c, *s_s, *s_l;
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#ifdef _WIN32
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HANDLE tid_c, tid_s;
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#else
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pthread_t tid_c, tid_s;
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#endif
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int i, j, cur_buf_size, snd_buf_size, rcv_buf_size, sendv_retries_left;
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socklen_t opt_len;
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struct sctp_sndinfo sndinfo;
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char *line;
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#ifdef _WIN32
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WSADATA wsaData;
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#endif
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uint16_t client_port = 9900;
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uint16_t server_port = 9901;
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if (argc == 3) {
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client_port = atoi(argv[1]);
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server_port = atoi(argv[2]);
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}
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debug_printf("starting program\n");
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#ifdef _WIN32
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if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
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debug_printf("WSAStartup failed\n");
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exit (EXIT_FAILURE);
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}
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#endif
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usrsctp_init(0, conn_output, debug_printf_stack);
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/* set up a connected UDP socket */
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#ifdef _WIN32
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if ((fd_c = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) {
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debug_printf("socket() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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if ((fd_s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) {
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debug_printf("socket() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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#else
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if ((fd_c = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
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perror("socket");
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exit(EXIT_FAILURE);
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}
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if ((fd_s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
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perror("socket");
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exit(EXIT_FAILURE);
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}
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#endif
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memset(&sin_c, 0, sizeof(struct sockaddr_in));
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sin_c.sin_family = AF_INET;
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#ifdef HAVE_SIN_LEN
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sin_c.sin_len = sizeof(struct sockaddr_in);
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#endif
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sin_c.sin_port = htons(client_port);
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sin_c.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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memset(&sin_s, 0, sizeof(struct sockaddr_in));
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sin_s.sin_family = AF_INET;
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#ifdef HAVE_SIN_LEN
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sin_s.sin_len = sizeof(struct sockaddr_in);
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#endif
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sin_s.sin_port = htons(server_port);
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sin_s.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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#ifdef _WIN32
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if (bind(fd_c, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
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debug_printf("bind() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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if (bind(fd_s, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
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debug_printf("bind() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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#else
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if (bind(fd_c, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) < 0) {
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perror("bind");
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exit(EXIT_FAILURE);
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}
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if (bind(fd_s, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) < 0) {
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perror("bind");
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exit(EXIT_FAILURE);
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}
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#endif
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#ifdef _WIN32
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if (connect(fd_c, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
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debug_printf("connect() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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if (connect(fd_s, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
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debug_printf("connect() failed with error: %d\n", WSAGetLastError());
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exit(EXIT_FAILURE);
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}
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#else
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if (connect(fd_c, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) < 0) {
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perror("connect");
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exit(EXIT_FAILURE);
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}
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if (connect(fd_s, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) < 0) {
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perror("connect");
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exit(EXIT_FAILURE);
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}
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#endif
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#ifdef _WIN32
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if ((tid_c = CreateThread(NULL, 0, &handle_packets, (void *)&fd_c, 0, NULL)) == NULL) {
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debug_printf("CreateThread() failed with error: %d\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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if ((tid_s = CreateThread(NULL, 0, &handle_packets, (void *)&fd_s, 0, NULL)) == NULL) {
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debug_printf("CreateThread() failed with error: %d\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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#else
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if ((rc = pthread_create(&tid_c, NULL, &handle_packets, (void *)&fd_c)) != 0) {
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fprintf(stderr, "pthread_create tid_c: %s\n", strerror(rc));
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exit(EXIT_FAILURE);
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}
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if ((rc = pthread_create(&tid_s, NULL, &handle_packets, (void *)&fd_s)) != 0) {
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fprintf(stderr, "pthread_create tid_s: %s\n", strerror(rc));
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exit(EXIT_FAILURE);
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};
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#endif
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#ifdef SCTP_DEBUG
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usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
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#endif
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usrsctp_sysctl_set_sctp_ecn_enable(0);
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usrsctp_register_address((void *)&fd_c);
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usrsctp_register_address((void *)&fd_s);
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if ((s_c = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &fd_c)) == NULL) {
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perror("usrsctp_socket");
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exit(EXIT_FAILURE);
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}
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opt_len = (socklen_t)sizeof(int);
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cur_buf_size = 0;
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if (usrsctp_getsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &cur_buf_size, &opt_len) < 0) {
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perror("usrsctp_getsockopt");
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exit(EXIT_FAILURE);
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}
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debug_printf("Change send socket buffer size from %d ", cur_buf_size);
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snd_buf_size = 1<<22; /* 4 MB */
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if (usrsctp_setsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &snd_buf_size, sizeof(int)) < 0) {
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perror("usrsctp_setsockopt");
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exit(EXIT_FAILURE);
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}
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opt_len = (socklen_t)sizeof(int);
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cur_buf_size = 0;
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if (usrsctp_getsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &cur_buf_size, &opt_len) < 0) {
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perror("usrsctp_getsockopt");
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exit(EXIT_FAILURE);
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}
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debug_printf("to %d.\n", cur_buf_size);
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memset(&paddrparams, 0, sizeof(struct sctp_paddrparams));
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paddrparams.spp_address.ss_family = AF_CONN;
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#ifdef HAVE_SCONN_LEN
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paddrparams.spp_address.ss_len = sizeof(struct sockaddr_conn);
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#endif
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paddrparams.spp_flags = SPP_PMTUD_DISABLE;
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paddrparams.spp_pathmtu = 9000;
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if (usrsctp_setsockopt(s_c, IPPROTO_SCTP, SCTP_PEER_ADDR_PARAMS, &paddrparams, sizeof(struct sctp_paddrparams)) < 0) {
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perror("usrsctp_setsockopt");
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exit(EXIT_FAILURE);
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}
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if ((s_l = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &fd_s)) == NULL) {
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perror("usrsctp_socket");
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exit(EXIT_FAILURE);
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}
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opt_len = (socklen_t)sizeof(int);
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cur_buf_size = 0;
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if (usrsctp_getsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &cur_buf_size, &opt_len) < 0) {
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perror("usrsctp_getsockopt");
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exit(EXIT_FAILURE);
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}
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debug_printf("Change receive socket buffer size from %d ", cur_buf_size);
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rcv_buf_size = 1<<16; /* 64 KB */
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if (usrsctp_setsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &rcv_buf_size, sizeof(int)) < 0) {
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perror("usrsctp_setsockopt");
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exit(EXIT_FAILURE);
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}
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opt_len = (socklen_t)sizeof(int);
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cur_buf_size = 0;
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if (usrsctp_getsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &cur_buf_size, &opt_len) < 0) {
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perror("usrsctp_getsockopt");
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exit(EXIT_FAILURE);
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}
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debug_printf("to %d.\n", cur_buf_size);
|
|
/* Bind the client side. */
|
|
memset(&sconn, 0, sizeof(struct sockaddr_conn));
|
|
sconn.sconn_family = AF_CONN;
|
|
#ifdef HAVE_SCONN_LEN
|
|
sconn.sconn_len = sizeof(struct sockaddr_conn);
|
|
#endif
|
|
sconn.sconn_port = htons(5001);
|
|
sconn.sconn_addr = &fd_c;
|
|
if (usrsctp_bind(s_c, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
|
|
perror("usrsctp_bind");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
/* Bind the server side. */
|
|
memset(&sconn, 0, sizeof(struct sockaddr_conn));
|
|
sconn.sconn_family = AF_CONN;
|
|
#ifdef HAVE_SCONN_LEN
|
|
sconn.sconn_len = sizeof(struct sockaddr_conn);
|
|
#endif
|
|
sconn.sconn_port = htons(5001);
|
|
sconn.sconn_addr = &fd_s;
|
|
if (usrsctp_bind(s_l, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
|
|
perror("usrsctp_bind");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
/* Make server side passive... */
|
|
if (usrsctp_listen(s_l, 1) < 0) {
|
|
perror("usrsctp_listen");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
/* Initiate the handshake */
|
|
memset(&sconn, 0, sizeof(struct sockaddr_conn));
|
|
sconn.sconn_family = AF_CONN;
|
|
#ifdef HAVE_SCONN_LEN
|
|
sconn.sconn_len = sizeof(struct sockaddr_conn);
|
|
#endif
|
|
sconn.sconn_port = htons(5001);
|
|
sconn.sconn_addr = &fd_c;
|
|
if (usrsctp_connect(s_c, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
|
|
perror("usrsctp_connect");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if ((s_s = usrsctp_accept(s_l, NULL, NULL)) == NULL) {
|
|
perror("usrsctp_accept");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
usrsctp_close(s_l);
|
|
if ((line = malloc(LINE_LENGTH)) == NULL) {
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
memset(line, 'A', LINE_LENGTH);
|
|
sndinfo.snd_sid = 1;
|
|
sndinfo.snd_ppid = htonl(DISCARD_PPID);
|
|
sndinfo.snd_context = 0;
|
|
sndinfo.snd_assoc_id = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < NUMBER_OF_STEPS; i++) {
|
|
j = 0;
|
|
if (i % 2) {
|
|
sndinfo.snd_flags = SCTP_UNORDERED;
|
|
} else {
|
|
sndinfo.snd_flags = 0;
|
|
}
|
|
/* Send a 1 MB message */
|
|
sendv_retries_left = 120;
|
|
debug_printf("usrscp_sendv - step %d - call %d flags %x\n", i, ++j, sndinfo.snd_flags);
|
|
while (usrsctp_sendv(s_c, line, LINE_LENGTH, NULL, 0, (void *)&sndinfo,
|
|
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
|
|
fprintf(stderr,"usrsctp_sendv - errno: %d - %s\n", errno, strerror(errno));
|
|
if (errno != EWOULDBLOCK || !sendv_retries_left) {
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
sendv_retries_left--;
|
|
#ifdef _WIN32
|
|
Sleep(1000);
|
|
#else
|
|
sleep(1);
|
|
#endif
|
|
}
|
|
/* Send a 1 MB message */
|
|
sendv_retries_left = 120;
|
|
debug_printf("usrscp_sendv - step %d - call %d flags %x\n", i, ++j, sndinfo.snd_flags);
|
|
while (usrsctp_sendv(s_c, line, LINE_LENGTH, NULL, 0, (void *)&sndinfo,
|
|
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
|
|
fprintf(stderr,"usrsctp_sendv - errno: %d - %s\n", errno, strerror(errno));
|
|
if (errno != EWOULDBLOCK || !sendv_retries_left) {
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
sendv_retries_left--;
|
|
#ifdef _WIN32
|
|
Sleep(1000);
|
|
#else
|
|
sleep(1);
|
|
#endif
|
|
}
|
|
debug_printf("Sending done, sleeping\n");
|
|
}
|
|
free(line);
|
|
usrsctp_shutdown(s_c, SHUT_WR);
|
|
|
|
while (usrsctp_finish() != 0) {
|
|
#ifdef _WIN32
|
|
Sleep(1000);
|
|
#else
|
|
sleep(1);
|
|
#endif
|
|
}
|
|
#ifdef _WIN32
|
|
TerminateThread(tid_c, 0);
|
|
WaitForSingleObject(tid_c, INFINITE);
|
|
TerminateThread(tid_s, 0);
|
|
WaitForSingleObject(tid_s, INFINITE);
|
|
if (closesocket(fd_c) == SOCKET_ERROR) {
|
|
debug_printf("closesocket() failed with error: %d\n", WSAGetLastError());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (closesocket(fd_s) == SOCKET_ERROR) {
|
|
debug_printf("closesocket() failed with error: %d\n", WSAGetLastError());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
WSACleanup();
|
|
#else
|
|
pthread_cancel(tid_c);
|
|
pthread_join(tid_c, NULL);
|
|
pthread_cancel(tid_s);
|
|
pthread_join(tid_s, NULL);
|
|
if (close(fd_c) < 0) {
|
|
perror("close");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (close(fd_s) < 0) {
|
|
perror("close");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
#endif
|
|
return (0);
|
|
}
|