/*
* Class: net_tomp2p_sctp_core_Sctp
* Method: usrsctp_init
* Signature: (I)Z
*/
JNIEXPORT jboolean JNICALL
Java_net_tomp2p_sctp_core_Sctp_usrsctp_1init
(JNIEnv *env, jclass clazz, jint port)
{
/*
* First argument is udp_encapsulation_port which is not relevant to our
* AF_CONN use of SCTP.
*/
debugSctpPrintf("=====>: net_tomp2p_sctp_core_Sctp.c calling init\n");
usrsctp_init((uint16_t) port, onSctpOutboundPacket, debugSctpPrintf);
debugSctpPrintf("=====>: net_tomp2p_sctp_core_Sctp.c about to set SCTP_DEBUG_ALL\n");
#ifdef SCTP_DEBUG
debugSctpPrintf("=====>: net_tomp2p_sctp_core_Sctp.c setting SCTP_DEBUG_ALL\n");
//usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_ALL);
usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
#endif
/* TODO(ldixon) Consider turning this on/off. */
usrsctp_sysctl_set_sctp_ecn_enable(0);
return JNI_TRUE;
}
struct sctp_transport *
create_sctp_transport(struct rtcdc_peer_connection *peer)
{
if (peer == NULL || peer->transport == NULL)
return NULL;
struct sctp_transport *sctp = (struct sctp_transport *)calloc(1, sizeof *sctp);
if (sctp == NULL)
return NULL;
peer->transport->sctp = sctp;
sctp->local_port = random_integer(10000, 60000);
if (g_sctp_ref == 0) {
usrsctp_init(0, sctp_data_ready_cb, NULL);
usrsctp_sysctl_set_sctp_ecn_enable(1);
}
g_sctp_ref++;
usrsctp_register_address(sctp);
struct socket *s = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP,
sctp_data_received_cb, NULL, 0, peer);
if (s == NULL)
goto trans_err;
sctp->sock = s;
BIO *bio = BIO_new(BIO_s_mem());
if (bio == NULL)
goto trans_err;
BIO_set_mem_eof_return(bio, -1);
sctp->incoming_bio = bio;
bio = BIO_new(BIO_s_mem());
if (bio == NULL)
goto trans_err;
BIO_set_mem_eof_return(bio, -1);
sctp->outgoing_bio = bio;
#ifdef DEBUG_SCTP
int sd;
struct sockaddr_in stub_addr;
memset(&stub_addr, 0, sizeof stub_addr);
inet_pton(AF_INET, "127.0.0.1", &stub_addr.sin_addr);
stub_addr.sin_family = AF_INET;
sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
stub_addr.sin_port = htons(60001);
bind(sd, (const struct sockaddr *)&stub_addr, sizeof stub_addr);
stub_addr.sin_port = htons(60002);
connect(sd, (const struct sockaddr *)&stub_addr, sizeof stub_addr);
sctp->incoming_stub = sd;
sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
stub_addr.sin_port = htons(60002);
bind(sd, (const struct sockaddr *)&stub_addr, sizeof stub_addr);
stub_addr.sin_port = htons(60001);
connect(sd, (const struct sockaddr *)&stub_addr, sizeof stub_addr);
sctp->outgoing_stub = sd;
#endif
struct linger lopt;
lopt.l_onoff = 1;
lopt.l_linger = 0;
usrsctp_setsockopt(s, SOL_SOCKET, SO_LINGER, &lopt, sizeof lopt);
struct sctp_paddrparams peer_param;
memset(&peer_param, 0, sizeof peer_param);
peer_param.spp_flags = SPP_PMTUD_DISABLE;
peer_param.spp_pathmtu = 1200;
usrsctp_setsockopt(s, IPPROTO_SCTP, SCTP_PEER_ADDR_PARAMS, &peer_param, sizeof peer_param);
struct sctp_assoc_value av;
av.assoc_id = SCTP_ALL_ASSOC;
av.assoc_value = 1;
usrsctp_setsockopt(s, IPPROTO_SCTP, SCTP_ENABLE_STREAM_RESET, &av, sizeof av);
uint32_t nodelay = 1;
usrsctp_setsockopt(s, IPPROTO_SCTP, SCTP_NODELAY, &nodelay, sizeof nodelay);
struct sctp_initmsg init_msg;
memset(&init_msg, 0, sizeof init_msg);
init_msg.sinit_num_ostreams = RTCDC_MAX_OUT_STREAM;
init_msg.sinit_max_instreams = RTCDC_MAX_IN_STREAM;
usrsctp_setsockopt(s, IPPROTO_SCTP, SCTP_INITMSG, &init_msg, sizeof init_msg);
struct sockaddr_conn sconn;
memset(&sconn, 0, sizeof sconn);
sconn.sconn_family = AF_CONN;
sconn.sconn_port = htons(sctp->local_port);
sconn.sconn_addr = (void *)sctp;
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
sconn.sconn_len = sizeof *sctp;
#endif
usrsctp_bind(s, (struct sockaddr *)&sconn, sizeof sconn);
sctp->deferred_messages = g_async_queue_new();
// modified by uniray7
sctp->peer = peer;
//====================
if (0) {
trans_err:
peer->transport->sctp = NULL;
usrsctp_finish();
free(sctp);
sctp = NULL;
}
return sctp;
}
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);
}
janus_sctp_association *janus_sctp_association_create(void *dtls, uint64_t handle_id, uint16_t udp_port) {
if(dtls == NULL || udp_port == 0)
return NULL;
/* usrsctp provides UDP encapsulation of SCTP, but we need these messages to
* be encapsulated in DTLS and actually sent/received by libnice, and not by
* usrsctp itself... as such, we make use of the AF_CONN approach */
janus_sctp_association *sctp = (janus_sctp_association *)calloc(1, sizeof(janus_sctp_association));
if(sctp == NULL) {
JANUS_LOG(LOG_FATAL, "Memory error!\n");
return NULL;
}
sctp->dtls = dtls;
sctp->handle_id = handle_id;
sctp->ready = FALSE; /* We wait for the association setup, for this */
sctp->local_port = 5000; /* FIXME We always use this one */
sctp->remote_port = udp_port;
sctp->sock = NULL;
struct socket *sock = NULL;
unsigned int i = 0;
struct sockaddr_conn sconn;
/* Now go on with SCTP */
janus_sctp_channel *channel = NULL;
for(i = 0; i < NUMBER_OF_CHANNELS; i++) {
channel = &(sctp->channels[i]);
channel->id = i;
channel->state = DATA_CHANNEL_CLOSED;
channel->pr_policy = SCTP_PR_SCTP_NONE;
channel->pr_value = 0;
channel->stream = 0;
channel->unordered = 0;
channel->flags = 0;
}
for(i = 0; i < NUMBER_OF_STREAMS; i++) {
sctp->stream_channel[i] = NULL;
sctp->stream_buffer[i] = 0;
}
sctp->stream_buffer_counter = 0;
sctp->sock = NULL;
janus_mutex_init(&sctp->mutex);
usrsctp_register_address((void *)sctp);
usrsctp_sysctl_set_sctp_ecn_enable(0);
if((sock = usrsctp_socket(AF_CONN, SOCK_STREAM, IPPROTO_SCTP, janus_sctp_incoming_data, NULL, 0, (void *)sctp)) == NULL) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] Error creating usrsctp socket...\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
/* Set SO_LINGER */
struct linger linger_opt;
linger_opt.l_onoff = 1;
linger_opt.l_linger = 0;
if(usrsctp_setsockopt(sock, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof(linger_opt))) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] setsockopt error: SO_LINGER\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
/* Allow resetting streams */
struct sctp_assoc_value av;
av.assoc_id = SCTP_ALL_ASSOC;
av.assoc_value = 1;
if(usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_ENABLE_STREAM_RESET, &av, sizeof(struct sctp_assoc_value)) < 0) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] setsockopt error: SCTP_ENABLE_STREAM_RESET\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
/* Disable Nagle */
uint32_t nodelay = 1;
if(usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_NODELAY, &nodelay, sizeof(nodelay))) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] setsockopt error: SCTP_NODELAY\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
/* Enable the events of interest */
struct sctp_event event;
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) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] setsockopt error: SCTP_EVENT\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
}
/* Configure our INIT message */
struct sctp_initmsg initmsg;
memset(&initmsg, 0, sizeof(struct sctp_initmsg));
initmsg.sinit_num_ostreams = 16; /* What Firefox says in the INIT (Chrome says 1023) */
initmsg.sinit_max_instreams = 2048; /* What both Chrome and Firefox say in the INIT */
if(usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_INITMSG, &initmsg, sizeof(struct sctp_initmsg)) < 0) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] setsockopt error: SCTP_INITMSG\n", handle_id);
free(sctp);
sctp = NULL;
return NULL;
}
/* Bind our side of the communication, using AF_CONN as we're doing the actual delivery ourselves */
memset(&sconn, 0, sizeof(struct sockaddr_conn));
sconn.sconn_family = AF_CONN;
sconn.sconn_port = htons(sctp->local_port);
sconn.sconn_addr = (void *)sctp;
if(usrsctp_bind(sock, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn)) < 0) {
JANUS_LOG(LOG_ERR, "[%"SCNu64"] Error binding client on port %"SCNu16"\n", handle_id, sctp->local_port);
free(sctp);
sctp = NULL;
return NULL;
}
#ifdef DEBUG_SCTP
char debug_file[1024];
g_snprintf(debug_file, 1024, "%s/sctp-debug-%"SCNu64".txt", debug_folder, handle_id);
sctp->debug_dump = fopen(debug_file, "wt");
#endif
/* We're done for now, the setup is done elsewhere */
janus_mutex_lock(&sctp->mutex);
sctp->sock = sock;
sctp->in_messages = g_queue_new();
sctp->out_messages = g_queue_new();
GError *error = NULL;
sctp->thread = g_thread_try_new("JanusSCTP", &janus_sctp_thread, sctp, &error);
if(error != NULL) {
/* Something went wrong... */
JANUS_LOG(LOG_ERR, "[%"SCNu64"] Got error %d (%s) trying to launch the SCTP thread...\n", handle_id, error->code, error->message ? error->message : "??");
g_queue_free(sctp->in_messages);
sctp->in_messages = NULL;
g_queue_free(sctp->out_messages);
sctp->out_messages = NULL;
g_free(sctp);
sctp = NULL;
return NULL;
}
janus_mutex_unlock(&sctp->mutex);
return sctp;
}
