Squashed 'third_party/rawrtc/usrsctp/' content from commit bd1a92db3
Change-Id: If227cd6edd3243ac26044056b7427ae5bca71ef8
git-subtree-dir: third_party/rawrtc/usrsctp
git-subtree-split: bd1a92db338ba1e57453637959a127032bb566ff
diff --git a/programs/ekr_server.c b/programs/ekr_server.c
new file mode 100644
index 0000000..6f81217
--- /dev/null
+++ b/programs/ekr_server.c
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2011-2013 Michael Tuexen
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef _WIN32
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <stdarg.h>
+#ifndef _WIN32
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <pthread.h>
+#include <unistd.h>
+#else
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#endif
+#include <usrsctp.h>
+
+#define MAX_PACKET_SIZE (1<<16)
+
+#ifdef _WIN32
+static DWORD WINAPI
+#else
+static void *
+#endif
+handle_packets(void *arg)
+{
+#ifdef _WIN32
+ SOCKET *fdp;
+#else
+ int *fdp;
+#endif
+ char buf[MAX_PACKET_SIZE];
+ char *dump_buf;
+ ssize_t length;
+
+#ifdef _WIN32
+ fdp = (SOCKET *)arg;
+#else
+ fdp = (int *)arg;
+#endif
+ for (;;) {
+#if defined(__NetBSD__)
+ pthread_testcancel();
+#endif
+ length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
+ if (length > 0) {
+ if ((dump_buf = usrsctp_dumppacket(buf, (size_t)length, SCTP_DUMP_INBOUND)) != NULL) {
+ fprintf(stderr, "%s", dump_buf);
+ usrsctp_freedumpbuffer(dump_buf);
+ }
+ usrsctp_conninput(fdp, buf, (size_t)length, 0);
+ }
+ }
+#ifdef _WIN32
+ return 0;
+#else
+ return (NULL);
+#endif
+}
+
+static int
+conn_output(void *addr, void *buf, size_t length, uint8_t tos, uint8_t set_df)
+{
+ char *dump_buf;
+#ifdef _WIN32
+ SOCKET *fdp;
+#else
+ int *fdp;
+#endif
+
+#ifdef _WIN32
+ fdp = (SOCKET *)addr;
+#else
+ fdp = (int *)addr;
+#endif
+ if ((dump_buf = usrsctp_dumppacket(buf, length, SCTP_DUMP_OUTBOUND)) != NULL) {
+ fprintf(stderr, "%s", dump_buf);
+ usrsctp_freedumpbuffer(dump_buf);
+ }
+#ifdef _WIN32
+ if (send(*fdp, buf, (int)length, 0) == SOCKET_ERROR) {
+ return (WSAGetLastError());
+#else
+ if (send(*fdp, buf, length, 0) < 0) {
+ return (errno);
+#endif
+ } else {
+ return (0);
+ }
+}
+
+static int
+receive_cb(struct socket *s, union sctp_sockstore addr, void *data,
+ size_t datalen, struct sctp_rcvinfo rcv, int flags, void *ulp_info)
+{
+
+ if (data) {
+ if (flags & MSG_NOTIFICATION) {
+ printf("Notification of length %d received.\n", (int)datalen);
+ } else {
+ printf("Msg of length %d received via %p:%u on stream %d with SSN %u and TSN %u, PPID %u, context %u.\n",
+ (int)datalen,
+ addr.sconn.sconn_addr,
+ ntohs(addr.sconn.sconn_port),
+ rcv.rcv_sid,
+ rcv.rcv_ssn,
+ rcv.rcv_tsn,
+ ntohl(rcv.rcv_ppid),
+ rcv.rcv_context);
+ }
+ free(data);
+ } else {
+ usrsctp_close(s);
+ }
+ return (1);
+}
+
+void
+debug_printf(const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ vprintf(format, ap);
+ va_end(ap);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct sockaddr_in sin;
+ struct sockaddr_conn sconn;
+#ifdef _WIN32
+ SOCKET fd;
+#else
+ int fd;
+#endif
+ struct socket *s;
+#ifdef _WIN32
+ HANDLE tid;
+#else
+ pthread_t tid;
+#endif
+#ifdef _WIN32
+ WSADATA wsaData;
+#endif
+
+ if (argc < 4) {
+ printf("error: this program requires 4 arguments!\n");
+ exit(EXIT_FAILURE);
+ }
+
+#ifdef _WIN32
+ if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
+ printf("WSAStartup failed\n");
+ exit (EXIT_FAILURE);
+ }
+#endif
+ usrsctp_init(0, conn_output, debug_printf);
+ /* set up a connected UDP socket */
+#ifdef _WIN32
+ if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) {
+ printf("socket() failed with error: %d\n", WSAGetLastError());
+ }
+#else
+ if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+ perror("socket");
+ }
+#endif
+ memset(&sin, 0, sizeof(struct sockaddr_in));
+ sin.sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+ sin.sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin.sin_port = htons(atoi(argv[2]));
+ if (!inet_pton(AF_INET, argv[1], &sin.sin_addr.s_addr)){
+ printf("error: invalid address\n");
+ exit(1);
+ }
+#ifdef _WIN32
+ if (bind(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
+ printf("bind() failed with error: %d\n", WSAGetLastError());
+ }
+#else
+ if (bind(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) < 0) {
+ perror("bind");
+ }
+#endif
+ memset(&sin, 0, sizeof(struct sockaddr_in));
+ sin.sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+ sin.sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin.sin_port = htons(atoi(argv[4]));
+ if (!inet_pton(AF_INET, argv[3], &sin.sin_addr.s_addr)){
+ printf("error: invalid address\n");
+ exit(1);
+ }
+#ifdef _WIN32
+ if (connect(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
+ printf("connect() failed with error: %d\n", WSAGetLastError());
+ }
+#else
+ if (connect(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) < 0) {
+ perror("connect");
+ }
+#endif
+#ifdef SCTP_DEBUG
+ usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
+#endif
+ usrsctp_sysctl_set_sctp_ecn_enable(0);
+ usrsctp_register_address((void *)&fd);
+#ifdef _WIN32
+ tid = CreateThread(NULL, 0, &handle_packets, (void *)&fd, 0, NULL);
+#else
+ pthread_create(&tid, NULL, &handle_packets, (void *)&fd);
+#endif
+ if ((s = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, NULL)) == NULL) {
+ perror("usrsctp_socket");
+ }
+ 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 = (void *)&fd;
+ if (usrsctp_bind(s, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
+ perror("usrsctp_bind");
+ }
+ if (usrsctp_listen(s, 1) < 0) {
+ perror("usrsctp_listen");
+ }
+ while (1) {
+ if (usrsctp_accept(s, NULL, NULL) == NULL) {
+ perror("usrsctp_accept");
+ }
+ }
+ usrsctp_close(s);
+ usrsctp_deregister_address((void *)&fd);
+ while (usrsctp_finish() != 0) {
+#ifdef _WIN32
+ Sleep(1000);
+#else
+ sleep(1);
+#endif
+ }
+#ifdef _WIN32
+ TerminateThread(tid, 0);
+ WaitForSingleObject(tid, INFINITE);
+ if (closesocket(fd) == SOCKET_ERROR) {
+ printf("closesocket() failed with error: %d\n", WSAGetLastError());
+ }
+ WSACleanup();
+#else
+ pthread_cancel(tid);
+ pthread_join(tid, NULL);
+ if (close(fd) < 0) {
+ perror("close");
+ }
+#endif
+ return (0);
+}