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mgcp: Allocate a different port for the networking... 

Use the right source port when sending the message.
This commit is contained in:
Holger Hans Peter Freyther 2010-08-05 04:10:21 +08:00
parent 196349dda1
commit 314584ab44
5 changed files with 71 additions and 33 deletions
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2
openbsc/include/openbsc/mgcp.h
View File

@ -29,6 +29,7 @@
#include <arpa/inet.h>
#define RTP_PORT_DEFAULT 4000
#define RTP_PORT_NET_DEFAULT 16000
/**
* Calculate the RTP audio port for the given multiplex
@ -92,6 +93,7 @@ struct mgcp_config {
int audio_payload;
int audio_loop;
int rtp_bts_base_port;
int rtp_net_base_port;
int endp_dscp;
/* spec handling */

1
openbsc/include/openbsc/mgcp_internal.h
View File

@ -99,5 +99,6 @@ int mgcp_analyze_header(struct mgcp_config *cfg, struct msgb *msg,
const char **transaction_id, struct mgcp_endpoint **endp);
int mgcp_send_dummy(struct mgcp_endpoint *endp);
int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
#endif

80
openbsc/src/mgcp/mgcp_network.c
View File

@ -236,21 +236,27 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
dest = !dest;
if (dest == DEST_NETWORK) {
if (proto == PROTO_RTP)
if (proto == PROTO_RTP) {
patch_and_count(endp, &endp->bts_state,
endp->net_end.payload_type,
&addr, buf, rc);
return udp_send(fd->fd, &endp->net_end.addr,
proto == PROTO_RTP ? endp->net_end.rtp_port : endp->net_end.rtcp_port,
buf, rc);
return udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
endp->net_end.rtp_port, buf, rc);
} else {
return udp_send(endp->net_end.rtcp.fd, &endp->net_end.addr,
endp->net_end.rtcp_port, buf, rc);
}
} else {
if (proto == PROTO_RTP)
if (proto == PROTO_RTP) {
patch_and_count(endp, &endp->net_state,
endp->bts_end.payload_type,
&addr, buf, rc);
return udp_send(fd->fd, &endp->bts_end.addr,
proto == PROTO_RTP ? endp->bts_end.rtp_port : endp->bts_end.rtcp_port,
buf, rc);
return udp_send(endp->bts_end.rtp.fd, &endp->bts_end.addr,
endp->bts_end.rtp_port, buf, rc);
} else {
return udp_send(endp->bts_end.rtcp.fd, &endp->bts_end.addr,
endp->bts_end.rtcp_port, buf, rc);
}
}
}
@ -286,53 +292,47 @@ static int set_ip_tos(int fd, int tos)
return ret != 0;
}
static int bind_rtp(struct mgcp_endpoint *endp)
static int bind_rtp(struct mgcp_config *cfg, struct mgcp_rtp_end *rtp_end, int endpno)
{
struct mgcp_config *cfg = endp->cfg;
if (create_bind(cfg->source_addr, &endp->bts_end.rtp, endp->bts_end.local_port) != 0) {
if (create_bind(cfg->source_addr, &rtp_end->rtp, rtp_end->local_port) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to create RTP port: %s:%d on 0x%x\n",
cfg->source_addr, endp->bts_end.local_port, ENDPOINT_NUMBER(endp));
cfg->source_addr, rtp_end->local_port, endpno);
goto cleanup0;
}
if (create_bind(cfg->source_addr, &endp->bts_end.rtcp, endp->bts_end.local_port + 1) != 0) {
if (create_bind(cfg->source_addr, &rtp_end->rtcp, rtp_end->local_port + 1) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to create RTCP port: %s:%d on 0x%x\n",
cfg->source_addr, endp->bts_end.local_port + 1, ENDPOINT_NUMBER(endp));
cfg->source_addr, rtp_end->local_port + 1, endpno);
goto cleanup1;
}
set_ip_tos(endp->bts_end.rtp.fd, cfg->endp_dscp);
set_ip_tos(endp->bts_end.rtcp.fd, cfg->endp_dscp);
set_ip_tos(rtp_end->rtp.fd, cfg->endp_dscp);
set_ip_tos(rtp_end->rtcp.fd, cfg->endp_dscp);
endp->bts_end.rtp.cb = rtp_data_cb;
endp->bts_end.rtp.data = endp;
endp->bts_end.rtp.when = BSC_FD_READ;
if (bsc_register_fd(&endp->bts_end.rtp) != 0) {
rtp_end->rtp.when = BSC_FD_READ;
if (bsc_register_fd(&rtp_end->rtp) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to register RTP port %d on 0x%x\n",
endp->bts_end.local_port, ENDPOINT_NUMBER(endp));
rtp_end->local_port, endpno);
goto cleanup2;
}
endp->bts_end.rtcp.cb = rtp_data_cb;
endp->bts_end.rtcp.data = endp;
endp->bts_end.rtcp.when = BSC_FD_READ;
if (bsc_register_fd(&endp->bts_end.rtcp) != 0) {
rtp_end->rtcp.when = BSC_FD_READ;
if (bsc_register_fd(&rtp_end->rtcp) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to register RTCP port %d on 0x%x\n",
endp->bts_end.local_port + 1, ENDPOINT_NUMBER(endp));
rtp_end->local_port + 1, endpno);
goto cleanup3;
}
return 0;
cleanup3:
bsc_unregister_fd(&endp->bts_end.rtp);
bsc_unregister_fd(&rtp_end->rtp);
cleanup2:
close(endp->bts_end.rtcp.fd);
endp->bts_end.rtcp.fd = -1;
close(rtp_end->rtcp.fd);
rtp_end->rtcp.fd = -1;
cleanup1:
close(endp->bts_end.rtp.fd);
endp->bts_end.rtp.fd = -1;
close(rtp_end->rtp.fd);
rtp_end->rtp.fd = -1;
cleanup0:
return -1;
}
@ -340,5 +340,19 @@ cleanup0:
int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
{
endp->bts_end.local_port = rtp_port;
return bind_rtp(endp);
endp->bts_end.rtp.cb = rtp_data_cb;
endp->bts_end.rtp.data = endp;
endp->bts_end.rtcp.data = endp;
endp->bts_end.rtcp.cb = rtp_data_cb;
return bind_rtp(endp->cfg, &endp->bts_end, ENDPOINT_NUMBER(endp));
}
int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
{
endp->net_end.local_port = rtp_port;
endp->net_end.rtp.cb = rtp_data_cb;
endp->net_end.rtp.data = endp;
endp->net_end.rtcp.data = endp;
endp->net_end.rtcp.cb = rtp_data_cb;
return bind_rtp(endp->cfg, &endp->net_end, ENDPOINT_NUMBER(endp));
}

3
openbsc/src/mgcp/mgcp_protocol.c
View File

@ -429,6 +429,8 @@ static struct msgb *handle_create_con(struct mgcp_config *cfg, struct msgb *msg)
/* bind to the port now */
port = rtp_calculate_port(ENDPOINT_NUMBER(endp), cfg->rtp_bts_base_port);
endp->bts_end.local_port = port;
port = rtp_calculate_port(ENDPOINT_NUMBER(endp), cfg->rtp_net_base_port);
endp->net_end.local_port = port;
/* assign a local call identifier or fail */
@ -709,6 +711,7 @@ struct mgcp_config *mgcp_config_alloc(void)
cfg->audio_name = talloc_strdup(cfg, "GSM-EFR/8000");
cfg->audio_payload = 97;
cfg->rtp_bts_base_port = RTP_PORT_DEFAULT;
cfg->rtp_net_base_port = RTP_PORT_NET_DEFAULT;
return cfg;
}

18
openbsc/src/mgcp/mgcp_vty.c
View File

@ -57,6 +57,7 @@ static int config_write_mgcp(struct vty *vty)
vty_out(vty, " bind ip %s%s", g_cfg->source_addr, VTY_NEWLINE);
vty_out(vty, " bind port %u%s", g_cfg->source_port, VTY_NEWLINE);
vty_out(vty, " rtp bts-base %u%s", g_cfg->rtp_bts_base_port, VTY_NEWLINE);
vty_out(vty, " rtp net-base %u%s", g_cfg->rtp_net_base_port, VTY_NEWLINE);
vty_out(vty, " rtp ip-dscp %d%s", g_cfg->endp_dscp, VTY_NEWLINE);
if (g_cfg->audio_payload != -1)
vty_out(vty, " sdp audio payload number %d%s", g_cfg->audio_payload, VTY_NEWLINE);
@ -163,6 +164,16 @@ DEFUN(cfg_mgcp_rtp_bts_base_port,
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_rtp_net_base_port,
cfg_mgcp_rtp_net_base_port_cmd,
"rtp net-base <0-65534>",
"Base port to use for network port\n" "Port\n")
{
unsigned int port = atoi(argv[0]);
g_cfg->rtp_net_base_port = port;
return CMD_SUCCESS;
}
ALIAS_DEPRECATED(cfg_mgcp_rtp_bts_base_port, cfg_mgcp_rtp_base_port_cmd,
"rtp base <0-65534>", "Base port to use")
@ -277,6 +288,7 @@ int mgcp_vty_init(void)
install_element(MGCP_NODE, &cfg_mgcp_bind_early_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_base_port_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_bts_base_port_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_net_base_port_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_ip_dscp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_rtp_ip_tos_cmd);
install_element(MGCP_NODE, &cfg_mgcp_sdp_payload_number_cmd);
@ -322,6 +334,12 @@ int mgcp_parse_config(const char *config_file, struct mgcp_config *cfg)
LOGP(DMGCP, LOGL_FATAL, "Failed to bind: %d\n", rtp_port);
return -1;
}
rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), g_cfg->rtp_net_base_port);
if (mgcp_bind_net_rtp_port(endp, rtp_port) != 0) {
LOGP(DMGCP, LOGL_FATAL, "Failed to bind: %d\n", rtp_port);
return -1;
}
}
return 0;