Merge branch 'on-waves/mgcp'
This commit is contained in:
commit
ca8dc141eb
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@ -64,6 +64,7 @@ static int audio_payload = 97;
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static int audio_loop = 0;
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static int early_bind = 0;
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static char *forward_ip = NULL;
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static char *config_file = "mgcp.cfg";
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/* used by msgb and mgcp */
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@ -909,6 +910,8 @@ static int config_write_mgcp(struct vty *vty)
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vty_out(vty, " sdp audio payload name %s%s", audio_name, VTY_NEWLINE);
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vty_out(vty, " loop %u%s", !!audio_loop, VTY_NEWLINE);
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vty_out(vty, " endpoints %u%s", number_endpoints, VTY_NEWLINE);
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if (forward_ip)
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vty_out(vty, " forward audio %s%s", forward_ip, VTY_NEWLINE);
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return CMD_SUCCESS;
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}
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@ -1055,6 +1058,17 @@ DEFUN(cfg_mgcp_number_endp,
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return CMD_SUCCESS;
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}
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DEFUN(cfg_mgcp_forward,
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cfg_mgcp_forward_cmd,
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"forward audio IP",
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"Forward packets from and to the IP. This disables most of the MGCP feature.")
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{
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if (forward_ip)
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talloc_free(forward_ip);
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forward_ip = talloc_strdup(tall_bsc_ctx, argv[0]);
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return CMD_SUCCESS;
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}
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int bsc_vty_init(struct gsm_network *dummy)
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{
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cmd_init(1);
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@ -1076,6 +1090,7 @@ int bsc_vty_init(struct gsm_network *dummy)
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install_element(MGCP_NODE, &cfg_mgcp_sdp_payload_name_cmd);
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install_element(MGCP_NODE, &cfg_mgcp_loop_cmd);
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install_element(MGCP_NODE, &cfg_mgcp_number_endp_cmd);
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install_element(MGCP_NODE, &cfg_mgcp_forward_cmd);
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return 0;
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}
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@ -1123,37 +1138,66 @@ int main(int argc, char** argv)
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endpoints[i].ci = CI_UNUSED;
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}
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/* initialize the socket */
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bfd.when = BSC_FD_READ;
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bfd.cb = read_call_agent;
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bfd.fd = socket(AF_INET, SOCK_DGRAM, 0);
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if (bfd.fd < 0) {
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perror("Gateway failed to listen");
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return -1;
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}
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/*
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* This application supports two modes.
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* 1.) a true MGCP gateway with support for AUEP, CRCX, MDCX, DLCX
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* 2.) plain forwarding of RTP packets on the endpoints.
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* both modes are mutual exclusive
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*/
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if (forward_ip) {
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setsockopt(bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
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if (!early_bind) {
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DEBUGP(DMGCP, "Forwarding requires early bind.\n");
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return -1;
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}
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(source_port);
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inet_aton(source_addr, &addr.sin_addr);
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/*
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* Store the forward IP and assign a ci. For early bind
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* the sockets will be created after this.
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*/
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for (i = 1; i < number_endpoints; ++i) {
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struct mgcp_endpoint *endp = &endpoints[i];
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inet_aton(forward_ip, &endp->remote);
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endp->ci = CI_UNUSED + 23;
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endp->rtp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), rtp_base_port));
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endp->rtcp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), rtp_base_port) + 1);
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}
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if (bind(bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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perror("Gateway failed to bind");
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return -1;
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}
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DEBUGP(DMGCP, "Configured for Audio Forwarding.\n");
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} else {
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bfd.when = BSC_FD_READ;
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bfd.cb = read_call_agent;
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bfd.fd = socket(AF_INET, SOCK_DGRAM, 0);
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if (bfd.fd < 0) {
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perror("Gateway failed to listen");
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return -1;
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}
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bfd.data = msgb_alloc(4096, "mgcp-msg");
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if (!bfd.data) {
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fprintf(stderr, "Gateway memory error.\n");
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return -1;
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}
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setsockopt(bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(source_port);
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inet_aton(source_addr, &addr.sin_addr);
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if (bind(bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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perror("Gateway failed to bind");
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return -1;
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}
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bfd.data = msgb_alloc(4096, "mgcp-msg");
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if (!bfd.data) {
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fprintf(stderr, "Gateway memory error.\n");
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return -1;
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}
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if (bsc_register_fd(&bfd) != 0) {
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DEBUGP(DMGCP, "Failed to register the fd\n");
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return -1;
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if (bsc_register_fd(&bfd) != 0) {
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DEBUGP(DMGCP, "Failed to register the fd\n");
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return -1;
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}
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DEBUGP(DMGCP, "Configured for MGCP.\n");
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}
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/* initialisation */
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