unsigned char flip[256];
+int any_sip_interface = 0;
+
//pthread_mutex_t mutex_msg;
su_home_t sip_home[1];
/*
* initialize SIP port
*/
-Psip::Psip(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings)
+Psip::Psip(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings, interface)
{
p_s_rtp_bridge = 0;
if (interface->rtp_bridge)
}
#define RTP_PORT_BASE 30000
-static unsigned int next_udp_port = RTP_PORT_BASE;
+#define RTP_PORT_MAX 39998
+static unsigned short next_udp_port = RTP_PORT_BASE;
static int rtp_sub_socket_bind(int fd, struct sockaddr_in *sin_local, uint32_t ip, uint16_t port)
{
int Psip::rtp_open(void)
{
- int rc;
+ int rc, rc2;
struct in_addr ia;
unsigned int ip;
+ unsigned short start_port;
/* create socket */
rc = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (!rc) {
+ if (rc < 0) {
rtp_close();
return -EIO;
}
register_fd(&p_s_rtp_fd, LCR_FD_READ, rtp_sock_callback, this, 0);
rc = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (!rc) {
+ if (rc < 0) {
rtp_close();
return -EIO;
}
/* bind socket */
ip = htonl(INADDR_ANY);
ia.s_addr = ip;
- for (next_udp_port = next_udp_port % 0xffff;
- next_udp_port < 0xffff; next_udp_port += 2) {
+ start_port = next_udp_port;
+ while (1) {
rc = rtp_sub_socket_bind(p_s_rtp_fd.fd, &p_s_rtp_sin_local, ip, next_udp_port);
if (rc != 0)
- continue;
+ goto try_next_port;
rc = rtp_sub_socket_bind(p_s_rtcp_fd.fd, &p_s_rtcp_sin_local, ip, next_udp_port+1);
- if (rc == 0)
+ if (rc == 0) {
+ next_udp_port = (next_udp_port + 2 > RTP_PORT_MAX) ? RTP_PORT_BASE : next_udp_port + 2;
break;
+ }
+ /* reopen rtp socket and try again with next udp port */
+ unregister_fd(&p_s_rtp_fd);
+ close(p_s_rtp_fd.fd);
+ p_s_rtp_fd.fd = 0;
+ rc2 = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if (rc2 < 0) {
+ rtp_close();
+ return -EIO;
+ }
+ p_s_rtp_fd.fd = rc2;
+ register_fd(&p_s_rtp_fd, LCR_FD_READ, rtp_sock_callback, this, 0);
+
+try_next_port:
+ next_udp_port = (next_udp_port + 2 > RTP_PORT_MAX) ? RTP_PORT_BASE : next_udp_port + 2;
+ if (next_udp_port == start_port)
+ break;
+ /* we must use rc2, in order to preserve rc */
}
if (rc < 0) {
PDEBUG(DEBUG_SIP, "failed to find port\n");
PDEBUG(DEBUG_SIP, "SIP interface created (inst=%p)\n", inst);
+ any_sip_interface = 1;
+
return 0;
}
interface->sip_inst = NULL;
PDEBUG(DEBUG_SIP, "SIP interface removed\n");
+
+ /* check if there is any other SIP interface left */
+ interface = interface_first;
+ while (interface) {
+ if (interface->sip_inst)
+ break;
+ interface = interface->next;
+ }
+ if (!interface)
+ any_sip_interface = 0;
}
extern su_log_t su_log_default[];