void destroy_sctp_transport(struct sctp_transport *sctp) { if (sctp == NULL) return; usrsctp_close(sctp->sock); usrsctp_deregister_address(sctp); BIO_free_all(sctp->incoming_bio); BIO_free_all(sctp->outgoing_bio); #ifdef DEBUG_SCTP close(sctp->incoming_stub); close(sctp->outgoing_stub); #endif g_async_queue_unref(sctp->deferred_messages); free(sctp); sctp = NULL; g_sctp_ref--; if (g_sctp_ref == 0) { for (int i = 0; i < 300; ++i) { if (usrsctp_finish() == 0) return; g_usleep(10000); } } }
static int receive_cb(struct socket *sock, union sctp_sockstore addr, void *data, size_t datalen, struct sctp_rcvinfo rcv, int flags, void *ulp_info) { if (data) { if (flags & MSG_NOTIFICATION) { handle_notification((union sctp_notification *)data, datalen); } else { printf("Msg of length %d received via %p:%u on stream %d with SSN %u and TSN %u, PPID %d, 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_deregister_address(ulp_info); usrsctp_close(sock); } return 1; }
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 *sock, union sctp_sockstore addr, void *data, size_t datalen, struct sctp_rcvinfo rcv, int flags, void *ulp_info) { printf("Message %p received on sock = %p.\n", data, (void *)sock); if (data) { if ((flags & MSG_NOTIFICATION) == 0) { printf("Messsage of length %d received via %p:%u on stream %u with SSN %u and TSN %u, PPID %u, context %u, flags %x.\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, flags); } free(data); } else { usrsctp_deregister_address(ulp_info); usrsctp_close(sock); } return (1); }
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 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); }
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, 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 *sock, 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 %d, 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_deregister_address(ulp_info); usrsctp_close(sock); } return (1); } void debug_printf(const char *format, ...) { va_list ap; va_start(ap, format); vprintf(format, ap); va_end(ap); }