void janus_sctp_association_destroy(janus_sctp_association *sctp) {
if(sctp == NULL)
return;
JANUS_LOG(LOG_INFO, "[%"SCNu64"] Destroying SCTP association\n", sctp->handle_id);
usrsctp_deregister_address(sctp);
usrsctp_shutdown(sctp->sock, SHUT_RDWR);
usrsctp_close(sctp->sock);
janus_mutex_lock(&sctp->mutex);
sctp->dtls = NULL; /* This will get rid of the thread */
janus_mutex_unlock(&sctp->mutex);
}
int
main(int argc, char *argv[])
{
struct socket *sock;
struct sockaddr_in addr;
socklen_t addr_len;
char line[LINE_LENGTH + 1];
unsigned int unordered, policy, value, id, seconds;
unsigned int i;
struct channel *channel;
const int on = 1;
struct sctp_assoc_value av;
struct sctp_event event;
struct sctp_udpencaps encaps;
struct sctp_initmsg initmsg;
uint16_t event_types[] = {SCTP_ASSOC_CHANGE,
SCTP_PEER_ADDR_CHANGE,
SCTP_REMOTE_ERROR,
SCTP_SHUTDOWN_EVENT,
SCTP_ADAPTATION_INDICATION,
SCTP_SEND_FAILED_EVENT,
SCTP_STREAM_RESET_EVENT,
SCTP_STREAM_CHANGE_EVENT};
if (argc > 1) {
usrsctp_init(atoi(argv[1]), NULL, debug_printf);
} else {
usrsctp_init(9899, NULL, debug_printf);
}
#ifdef SCTP_DEBUG
usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
#endif
usrsctp_sysctl_set_sctp_blackhole(2);
if ((sock = usrsctp_socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &peer_connection)) == NULL) {
perror("socket");
}
init_peer_connection(&peer_connection);
if (argc > 2) {
memset(&encaps, 0, sizeof(struct sctp_udpencaps));
encaps.sue_address.ss_family = AF_INET6;
encaps.sue_port = htons(atoi(argv[2]));
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_REMOTE_UDP_ENCAPS_PORT, (const void*)&encaps, (socklen_t)sizeof(struct sctp_udpencaps)) < 0) {
perror("setsockopt");
}
}
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_RECVRCVINFO, &on, sizeof(int)) < 0) {
perror("setsockopt SCTP_RECVRCVINFO");
}
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_EXPLICIT_EOR, &on, sizeof(int)) < 0) {
perror("setsockopt SCTP_EXPLICIT_EOR");
}
/* Allow resetting streams. */
av.assoc_id = SCTP_ALL_ASSOC;
av.assoc_value = SCTP_ENABLE_RESET_STREAM_REQ | SCTP_ENABLE_CHANGE_ASSOC_REQ;
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_ENABLE_STREAM_RESET, &av, sizeof(struct sctp_assoc_value)) < 0) {
perror("setsockopt SCTP_ENABLE_STREAM_RESET");
}
/* Enable the events of interest. */
memset(&event, 0, sizeof(event));
event.se_assoc_id = SCTP_ALL_ASSOC;
event.se_on = 1;
for (i = 0; i < sizeof(event_types)/sizeof(uint16_t); i++) {
event.se_type = event_types[i];
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(event)) < 0) {
perror("setsockopt SCTP_EVENT");
}
}
memset(&initmsg, 0, sizeof(struct sctp_initmsg));
initmsg.sinit_num_ostreams = 5;
initmsg.sinit_max_instreams = 65535;
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_INITMSG, &initmsg, sizeof(struct sctp_initmsg)) < 0) {
perror("setsockopt SCTP_INITMSG");
}
if (argc == 5) {
/* operating as client */
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
addr.sin_len = sizeof(struct sockaddr_in);
#endif
addr.sin_addr.s_addr = inet_addr(argv[3]);
addr.sin_port = htons(atoi(argv[4]));
if (usrsctp_connect(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) < 0) {
perror("connect");
}
printf("Connected to %s:%d.\n",
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
} else if (argc == 4) {
struct socket *conn_sock;
/* operating as server */
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
addr.sin_len = sizeof(struct sockaddr_in);
#endif
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons(atoi(argv[3]));
if (usrsctp_bind(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) < 0) {
perror("bind");
}
if (usrsctp_listen(sock, 1) < 0) {
perror("listen");
}
addr_len = (socklen_t)sizeof(struct sockaddr_in);
memset(&addr, 0, sizeof(struct sockaddr_in));
if ((conn_sock = usrsctp_accept(sock, (struct sockaddr *)&addr, &addr_len)) == NULL) {
perror("accept");
}
usrsctp_close(sock);
sock = conn_sock;
printf("Connected to %s:%d.\n",
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
} else {
printf("Usage: %s local_udp_port remote_udp_port local_port when operating as server\n"
" %s local_udp_port remote_udp_port remote_addr remote_port when operating as client\n",
argv[0], argv[0]);
return (0);
}
lock_peer_connection(&peer_connection);
peer_connection.sock = sock;
unlock_peer_connection(&peer_connection);
for (;;) {
#ifdef _WIN32
if (gets_s(line, LINE_LENGTH) == NULL) {
#else
if (fgets(line, LINE_LENGTH, stdin) == NULL) {
#endif
if (usrsctp_shutdown(sock, SHUT_WR) < 0) {
perror("usrsctp_shutdown");
}
while (usrsctp_finish() != 0) {
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
break;
}
if (strncmp(line, "?", strlen("?")) == 0 ||
strncmp(line, "help", strlen("help")) == 0) {
printf("Commands:\n"
"open unordered pr_policy pr_value - opens a channel\n"
"close channel - closes the channel\n"
"send channel:string - sends string using channel\n"
"status - prints the status\n"
"sleep n - sleep for n seconds\n"
"help - this message\n");
} else if (strncmp(line, "status", strlen("status")) == 0) {
lock_peer_connection(&peer_connection);
print_status(&peer_connection);
unlock_peer_connection(&peer_connection);
} else if (strncmp(line, "quit", strlen("quit")) == 0) {
if (usrsctp_shutdown(sock, SHUT_WR) < 0) {
perror("usrsctp_shutdown");
}
while (usrsctp_finish() != 0) {
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
break;
} else if (sscanf(line, "open %u %u %u", &unordered, &policy, &value) == 3) {
lock_peer_connection(&peer_connection);
channel = open_channel(&peer_connection, (uint8_t)unordered, (uint16_t)policy, (uint32_t)value);
unlock_peer_connection(&peer_connection);
if (channel == NULL) {
printf("Creating channel failed.\n");
} else {
printf("Channel with id %u created.\n", channel->id);
}
} else if (sscanf(line, "close %u", &id) == 1) {
if (id < NUMBER_OF_CHANNELS) {
lock_peer_connection(&peer_connection);
close_channel(&peer_connection, &peer_connection.channels[id]);
unlock_peer_connection(&peer_connection);
}
} else if (sscanf(line, "send %u", &id) == 1) {
if (id < NUMBER_OF_CHANNELS) {
char *msg;
msg = strstr(line, ":");
if (msg) {
msg++;
lock_peer_connection(&peer_connection);
#ifdef _WIN32
if (send_user_message(&peer_connection, &peer_connection.channels[id], msg, strlen(msg))) {
#else
if (send_user_message(&peer_connection, &peer_connection.channels[id], msg, strlen(msg) - 1)) {
#endif
printf("Message sent.\n");
} else {
printf("Message sending failed.\n");
}
unlock_peer_connection(&peer_connection);
}
}
} else if (sscanf(line, "sleep %u", &seconds) == 1) {
#ifdef _WIN32
Sleep(seconds * 1000);
#else
sleep(seconds);
#endif
} else {
printf("Unknown command: %s", line);
}
}
return (0);
}
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
struct sctp_sndinfo sndinfo;
char buffer[BUFFER_SIZE];
#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, &fd)) == 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(0);
sconn.sconn_addr = NULL;
if (usrsctp_bind(s, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
perror("usrsctp_bind");
}
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;
if (usrsctp_connect(s, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
perror("usrsctp_connect");
}
memset(buffer, 'A', BUFFER_SIZE);
sndinfo.snd_sid = 1;
sndinfo.snd_flags = 0;
sndinfo.snd_ppid = htonl(DISCARD_PPID);
sndinfo.snd_context = 0;
sndinfo.snd_assoc_id = 0;
if (usrsctp_sendv(s, buffer, BUFFER_SIZE, NULL, 0, (void *)&sndinfo,
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
perror("usrsctp_sendv");
}
usrsctp_shutdown(s, SHUT_WR);
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);
}
int
main(void)
{
struct sockaddr_in sin_s, sin_c;
struct sockaddr_conn sconn;
#ifdef _WIN32
SOCKET fd_c, fd_s;
#else
int fd_c, fd_s;
#endif
struct socket *s_c, *s_s, *s_l;
#ifdef _WIN32
HANDLE tid_c, tid_s;
#else
pthread_t tid_c, tid_s;
#endif
int cur_buf_size, snd_buf_size, rcv_buf_size;
socklen_t opt_len;
struct sctp_sndinfo sndinfo;
char *line;
#ifdef _WIN32
WSADATA wsaData;
#endif
#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_c = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) {
printf("socket() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
if ((fd_s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) {
printf("socket() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
#else
if ((fd_c = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
perror("socket");
exit(EXIT_FAILURE);
}
if ((fd_s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
perror("socket");
exit(EXIT_FAILURE);
}
#endif
memset(&sin_c, 0, sizeof(struct sockaddr_in));
sin_c.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
sin_c.sin_len = sizeof(struct sockaddr_in);
#endif
sin_c.sin_port = htons(9900);
sin_c.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
memset(&sin_s, 0, sizeof(struct sockaddr_in));
sin_s.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
sin_s.sin_len = sizeof(struct sockaddr_in);
#endif
sin_s.sin_port = htons(9901);
sin_s.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
#ifdef _WIN32
if (bind(fd_c, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("bind() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
if (bind(fd_s, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("bind() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
#else
if (bind(fd_c, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) < 0) {
perror("bind");
exit(EXIT_FAILURE);
}
if (bind(fd_s, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) < 0) {
perror("bind");
exit(EXIT_FAILURE);
}
#endif
#ifdef _WIN32
if (connect(fd_c, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("connect() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
if (connect(fd_s, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("connect() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
#else
if (connect(fd_c, (struct sockaddr *)&sin_s, sizeof(struct sockaddr_in)) < 0) {
perror("connect");
exit(EXIT_FAILURE);
}
if (connect(fd_s, (struct sockaddr *)&sin_c, sizeof(struct sockaddr_in)) < 0) {
perror("connect");
exit(EXIT_FAILURE);
}
#endif
#ifdef _WIN32
tid_c = CreateThread(NULL, 0, &handle_packets, (void *)&fd_c, 0, NULL);
tid_s = CreateThread(NULL, 0, &handle_packets, (void *)&fd_s, 0, NULL);
#else
if (pthread_create(&tid_c, NULL, &handle_packets, (void *)&fd_c)) {
perror("pthread_create tid_c");
exit(EXIT_FAILURE);
}
if (pthread_create(&tid_s, NULL, &handle_packets, (void *)&fd_s)) {
perror("pthread_create tid_s");
exit(EXIT_FAILURE);
};
#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_c);
usrsctp_register_address((void *)&fd_s);
if ((s_c = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &fd_c)) == NULL) {
perror("usrsctp_socket");
exit(EXIT_FAILURE);
}
opt_len = (socklen_t)sizeof(int);
cur_buf_size = 0;
if (usrsctp_getsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &cur_buf_size, &opt_len) < 0) {
perror("usrsctp_getsockopt");
exit(EXIT_FAILURE);
}
printf("Change send socket buffer size from %d ", cur_buf_size);
snd_buf_size = 1<<22; /* 4 MB */
if (usrsctp_setsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &snd_buf_size, sizeof(int)) < 0) {
perror("usrsctp_setsockopt");
exit(EXIT_FAILURE);
}
opt_len = (socklen_t)sizeof(int);
cur_buf_size = 0;
if (usrsctp_getsockopt(s_c, SOL_SOCKET, SO_SNDBUF, &cur_buf_size, &opt_len) < 0) {
perror("usrsctp_getsockopt");
exit(EXIT_FAILURE);
}
printf("to %d.\n", cur_buf_size);
if ((s_l = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &fd_s)) == NULL) {
perror("usrsctp_socket");
exit(EXIT_FAILURE);
}
opt_len = (socklen_t)sizeof(int);
cur_buf_size = 0;
if (usrsctp_getsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &cur_buf_size, &opt_len) < 0) {
perror("usrsctp_getsockopt");
exit(EXIT_FAILURE);
}
printf("Change receive socket buffer size from %d ", cur_buf_size);
rcv_buf_size = 1<<16; /* 64 KB */
if (usrsctp_setsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &rcv_buf_size, sizeof(int)) < 0) {
perror("usrsctp_setsockopt");
exit(EXIT_FAILURE);
}
opt_len = (socklen_t)sizeof(int);
cur_buf_size = 0;
if (usrsctp_getsockopt(s_l, SOL_SOCKET, SO_RCVBUF, &cur_buf_size, &opt_len) < 0) {
perror("usrsctp_getsockopt");
exit(EXIT_FAILURE);
}
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_flags = 0;
sndinfo.snd_ppid = htonl(DISCARD_PPID);
sndinfo.snd_context = 0;
sndinfo.snd_assoc_id = 0;
/* Send a 1 MB ordered message */
if (usrsctp_sendv(s_c, line, LINE_LENGTH, NULL, 0, (void *)&sndinfo,
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
perror("usrsctp_sendv");
exit(EXIT_FAILURE);
}
/* Send a 1 MB ordered message */
if (usrsctp_sendv(s_c, line, LINE_LENGTH, NULL, 0, (void *)&sndinfo,
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
perror("usrsctp_sendv");
exit(EXIT_FAILURE);
}
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) {
printf("closesocket() failed with error: %d\n", WSAGetLastError());
exit(EXIT_FAILURE);
}
if (closesocket(fd_s) == SOCKET_ERROR) {
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);
}
int
main(int argc, char *argv[])
{
struct sockaddr_in sin;
struct sockaddr_conn sconn;
struct sctp_event event;
uint16_t event_types[] = {SCTP_ASSOC_CHANGE,
SCTP_PEER_ADDR_CHANGE,
SCTP_SEND_FAILED_EVENT};
unsigned int i;
#ifdef _WIN32
SOCKET fd;
#else
int fd;
#endif
struct socket *s;
#ifdef _WIN32
HANDLE tid;
#else
pthread_t tid;
#endif
struct sctp_sndinfo sndinfo;
char line[LINE_LENGTH];
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: %ld\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]));
sin.sin_addr.s_addr = inet_addr(argv[1]);
#ifdef _WIN32
if (bind(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("bind() failed with error: %ld\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]));
sin.sin_addr.s_addr = inet_addr(argv[3]);
#ifdef _WIN32
if (connect(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) == SOCKET_ERROR) {
printf("connect() failed with error: %ld\n", WSAGetLastError());
}
#else
if (connect(fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) < 0) {
perror("connect");
}
#endif
#ifdef _WIN32
tid = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)&handle_packets, (void *)&fd, 0, NULL);
#else
pthread_create(&tid, NULL, &handle_packets, (void *)&fd);
#endif
#ifdef SCTP_DEBUG
usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
#endif
usrsctp_register_address((void *)&fd);
usrsctp_sysctl_set_sctp_ecn_enable(0);
if ((s = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, &fd)) == NULL) {
perror("usrsctp_socket");
}
/* Enable the events of interest. */
if (usrsctp_set_non_blocking(s, 1) < 0) {
perror("usrsctp_set_non_blocking");
}
memset(&event, 0, sizeof(event));
event.se_assoc_id = SCTP_ALL_ASSOC;
event.se_on = 1;
for (i = 0; i < sizeof(event_types)/sizeof(uint16_t); i++) {
event.se_type = event_types[i];
if (usrsctp_setsockopt(s, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(event)) < 0) {
perror("setsockopt SCTP_EVENT");
}
}
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(atoi(argv[5]));
sconn.sconn_addr = &fd;
if (usrsctp_bind(s, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
perror("usrsctp_bind");
}
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(atoi(argv[6]));
sconn.sconn_addr = &fd;
if (usrsctp_connect(s, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
perror("usrsctp_connect");
}
for (;;) {
#ifdef _WIN32
if (gets_s(line, LINE_LENGTH) == NULL) {
#else
if (fgets(line, LINE_LENGTH, stdin) == NULL) {
#endif
if (usrsctp_shutdown(s, SHUT_WR) < 0) {
perror("usrsctp_shutdown");
}
while (usrsctp_finish() != 0) {
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
break;
}
sndinfo.snd_sid = 1;
sndinfo.snd_flags = 0;
sndinfo.snd_ppid = htonl(DISCARD_PPID);
sndinfo.snd_context = 0;
sndinfo.snd_assoc_id = 0;
if (usrsctp_sendv(s, line, strlen(line), NULL, 0, (void *)&sndinfo,
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) {
perror("usrsctp_sendv");
}
}
return (0);
}
