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[mgcp] Move away from global variables and split out VTY code 

In separation of using the MGCP parsing in another context, refactor
the code to operate on a struct mgcp_config, split out the vty code
from the mgcp_protocol.c, and move the callbacks into the mgcp code.

There should be no functional changes.
This commit is contained in:
Holger Hans Peter Freyther 2010-02-20 21:21:02 +01:00
parent 92026f1cef
commit 7bdc637aae
7 changed files with 551 additions and 421 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
openbsc/include/openbsc/Makefile.am
View File

@ -5,4 +5,4 @@ noinst_HEADERS = abis_nm.h abis_rsl.h debug.h db.h gsm_04_08.h gsm_data.h \
gsm_utils.h ipaccess.h rs232.h openbscdefines.h rtp_proxy.h \
bsc_rll.h mncc.h talloc.h transaction.h ussd.h gsm_04_80.h \
silent_call.h mgcp.h meas_rep.h bitvec.h rest_octets.h \
system_information.h handover.h statistics.h
system_information.h handover.h statistics.h mgcp_internal.h

57
openbsc/include/openbsc/mgcp.h
View File

@ -1,8 +1,8 @@
/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
/*
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009 by On-Waves
* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2010 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
@ -26,8 +26,9 @@
#include "msgb.h"
#include <arpa/inet.h>
#define RTP_PORT_DEFAULT 4000
extern unsigned int rtp_base_port;
/**
* Calculate the RTP audio port for the given multiplex
@ -53,18 +54,54 @@ static inline int rtp_calculate_port(int multiplex, int base)
return base + (multiplex * 2);
}
int mgcp_parse_config(const char *config_file, struct gsm_network *dummy_network);
struct msgb *mgcp_handle_message(struct msgb *msg);
struct msgb *mgcp_create_rsip(void);
int mgcp_vty_init(void);
/*
* Handling of MGCP Endpoints and the MGCP Config
*/
struct mgcp_endpoint;
struct mgcp_config;
/* endpoint managed */
#define MGCP_ENDP_CRCX 1
#define MGCP_ENDP_DLCX 2
#define MGCP_ENDP_MDCX 3
typedef int (*mgcp_change)(int endpoint, int state, int local_rtp, void *);
void mgcp_set_change_cb(mgcp_change cb, void *data);
typedef int (*mgcp_change)(struct mgcp_config *cfg, int endpoint, int state, int local_rtp);
struct mgcp_config {
int source_port;
char *local_ip;
char *source_addr;
unsigned int number_endpoints;
char *bts_ip;
struct in_addr bts_in;
char *audio_name;
int audio_payload;
int audio_loop;
int early_bind;
int rtp_base_port;
char *forward_ip;
int forward_port;
mgcp_change change_cb;
struct mgcp_endpoint *endpoints;
unsigned int last_call_id;
};
/* config management */
struct mgcp_config *mgcp_config_alloc(void);
int mgcp_parse_config(const char *config_file, struct mgcp_config *cfg);
int mgcp_vty_init(void);
int mgcp_endpoints_allocate(struct mgcp_config *cfg);
int mgcp_bind_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
/*
* format helper functions
*/
struct msgb *mgcp_handle_message(struct mgcp_config *cfg, struct msgb *msg);
struct msgb *mgcp_create_rsip(void);
#endif

61
openbsc/include/openbsc/mgcp_internal.h Normal file
View File

@ -0,0 +1,61 @@
/* MGCP Private Data */
/*
* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2010 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef OPENBSC_MGCP_DATA_H
#define OPENBSC_MGCP_DATA_H
#include "select.h"
#define CI_UNUSED 0
struct mgcp_endpoint {
int ci;
char *callid;
char *local_options;
int conn_mode;
/* the local rtp port we are binding to */
int rtp_port;
/*
* RTP mangling:
* - we get RTP and RTCP to us and need to forward to the BTS
* - we get RTP and RTCP from the BTS and forward to the network
*/
struct bsc_fd local_rtp;
struct bsc_fd local_rtcp;
struct in_addr remote;
struct in_addr bts;
/* in network byte order */
int net_rtp, net_rtcp;
int bts_rtp, bts_rtcp;
/* backpointer */
struct mgcp_config *cfg;
};
#define ENDPOINT_NUMBER(endp) abs(endp - endp->cfg->endpoints)
#endif

3
openbsc/src/Makefile.am
View File

@ -38,7 +38,8 @@ ipaccess_config_LDADD = libbsc.a libmsc.a libbsc.a libvty.a -ldl -ldbi $(LIBCRYP
isdnsync_SOURCES = isdnsync.c
bsc_mgcp_SOURCES = mgcp/mgcp_main.c mgcp/mgcp_protocol.c msgb.c talloc.c debug.c select.c timer.c telnet_interface.c
bsc_mgcp_SOURCES = mgcp/mgcp_main.c mgcp/mgcp_protocol.c mgcp/mgcp_vty.c \
msgb.c talloc.c debug.c select.c timer.c telnet_interface.c
bsc_mgcp_LDADD = libvty.a
ipaccess_proxy_SOURCES = ipaccess/ipaccess-proxy.c msgb.c select.c talloc.c debug.c timer.c

30
openbsc/src/mgcp/mgcp_main.c
View File

@ -31,7 +31,6 @@
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <openbsc/debug.h>
#include <openbsc/msgb.h>
@ -41,9 +40,6 @@
#include <openbsc/mgcp.h>
#include <openbsc/telnet_interface.h>
#include <vty/command.h>
#include <vty/vty.h>
/* this is here for the vty... it will never be called */
void subscr_put() { abort(); }
@ -52,18 +48,15 @@ void subscr_put() { abort(); }
#warning "Make use of the rtp proxy code"
static int source_port = 2427;
static const char *source_addr = "0.0.0.0";
static struct bsc_fd bfd;
static int first_request = 1;
static struct mgcp_config *cfg;
static char *config_file = "mgcp.cfg";
/* used by msgb and mgcp */
void *tall_bsc_ctx = NULL;
unsigned int rtp_base_port = RTP_PORT_DEFAULT;
static void print_help()
{
printf("Some useful help...\n");
@ -136,7 +129,7 @@ static int read_call_agent(struct bsc_fd *fd, unsigned int what)
/* handle message now */
msg->l2h = msgb_put(msg, rc);
resp = mgcp_handle_message(msg);
resp = mgcp_handle_message(cfg, msg);
msgb_reset(msg);
if (resp) {
@ -147,15 +140,6 @@ static int read_call_agent(struct bsc_fd *fd, unsigned int what)
}
int bsc_vty_init(struct gsm_network *dummy)
{
cmd_init(1);
vty_init();
mgcp_vty_init();
return 0;
}
int main(int argc, char** argv)
{
struct gsm_network dummy_network;
@ -170,10 +154,14 @@ int main(int argc, char** argv)
debug_add_target(stderr_target);
debug_set_all_filter(stderr_target, 1);
cfg = mgcp_config_alloc();
if (!cfg)
return -1;
handle_options(argc, argv);
telnet_init(&dummy_network, 4243);
rc = mgcp_parse_config(config_file, &dummy_network);
rc = mgcp_parse_config(config_file, cfg);
if (rc < 0)
return rc;
@ -192,8 +180,8 @@ int main(int argc, char** argv)
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(source_port);
inet_aton(source_addr, &addr.sin_addr);
addr.sin_port = htons(cfg->source_port);
inet_aton(cfg->source_addr, &addr.sin_addr);
if (bind(bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
perror("Gateway failed to bind");

481
openbsc/src/mgcp/mgcp_protocol.c
View File

@ -2,8 +2,8 @@
/* The protocol implementation */
/*
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009 by On-Waves
* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2010 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
@ -39,27 +39,10 @@
#include <openbsc/gsm_data.h>
#include <openbsc/select.h>
#include <openbsc/mgcp.h>
#include <openbsc/telnet_interface.h>
#include <vty/command.h>
#include <vty/vty.h>
#include <openbsc/mgcp_internal.h>
#warning "Make use of the rtp proxy code"
static int source_port = 2427;
static const char *local_ip = NULL;
static const char *source_addr = "0.0.0.0";
static unsigned int number_endpoints = 0;
static const char *bts_ip = NULL;
static struct in_addr bts_in;
static const char *audio_name = "GSM-EFR/8000";
static int audio_payload = 97;
static int audio_loop = 0;
static int early_bind = 0;
static char *forward_ip = NULL;
static int forward_port = 0;
enum mgcp_connection_mode {
MGCP_CONN_NONE = 0,
MGCP_CONN_RECV_ONLY = 1,
@ -77,37 +60,6 @@ enum {
PROTO_RTCP,
};
#define CI_UNUSED 0
static unsigned int last_call_id = 0;
struct mgcp_endpoint {
int ci;
char *callid;
char *local_options;
int conn_mode;
/* the local rtp port we are binding to */
int rtp_port;
/*
* RTP mangling:
* - we get RTP and RTCP to us and need to forward to the BTS
* - we get RTP and RTCP from the BTS and forward to the network
*/
struct bsc_fd local_rtp;
struct bsc_fd local_rtcp;
struct in_addr remote;
struct in_addr bts;
/* in network byte order */
int net_rtp, net_rtcp;
int bts_rtp, bts_rtcp;
};
static struct mgcp_endpoint *endpoints = NULL;
#define ENDPOINT_NUMBER(endp) abs(endp - endpoints)
/**
* Macro for tokenizing MGCP messages and SDP in one go.
*
@ -150,39 +102,36 @@ struct mgcp_msg_ptr {
struct mgcp_request {
char *name;
struct msgb *(*handle_request) (struct msgb *msg);
struct msgb *(*handle_request) (struct mgcp_config *cfg, struct msgb *msg);
char *debug_name;
};
#define MGCP_REQUEST(NAME, REQ, DEBUG_NAME) \
{ .name = NAME, .handle_request = REQ, .debug_name = DEBUG_NAME },
static struct msgb *handle_audit_endpoint(struct msgb *msg);
static struct msgb *handle_create_con(struct msgb *msg);
static struct msgb *handle_delete_con(struct msgb *msg);
static struct msgb *handle_modify_con(struct msgb *msg);
static struct msgb *handle_audit_endpoint(struct mgcp_config *cfg, struct msgb *msg);
static struct msgb *handle_create_con(struct mgcp_config *cfg, struct msgb *msg);
static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg);
static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg);
static mgcp_change change_cb;
static void *change_cb_data;
static int generate_call_id()
static int generate_call_id(struct mgcp_config *cfg)
{
int i;
/* use the call id */
++last_call_id;
++cfg->last_call_id;
/* handle wrap around */
if (last_call_id == CI_UNUSED)
++last_call_id;
if (cfg->last_call_id == CI_UNUSED)
++cfg->last_call_id;
/* callstack can only be of size number_of_endpoints */
/* verify that the call id is free, e.g. in case of overrun */
for (i = 1; i < number_endpoints; ++i)
if (endpoints[i].ci == last_call_id)
return generate_call_id();
for (i = 1; i < cfg->number_endpoints; ++i)
if (cfg->endpoints[i].ci == cfg->last_call_id)
return generate_call_id(cfg);
return last_call_id;
return cfg->last_call_id;
}
/* FIXIME/TODO: need to have a list of pending transactions and check that */
@ -217,9 +166,11 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
struct sockaddr_in addr;
socklen_t slen = sizeof(addr);
struct mgcp_endpoint *endp;
struct mgcp_config *cfg;
int rc, dest, proto;
endp = (struct mgcp_endpoint *) fd->data;
cfg = endp->cfg;
rc = recvfrom(fd->fd, &buf, sizeof(buf), 0,
(struct sockaddr *) &addr, &slen);
@ -249,9 +200,9 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
proto = fd == &endp->local_rtp ? PROTO_RTP : PROTO_RTCP;
/* We have no idea who called us, maybe it is the BTS. */
if (dest == DEST_NETWORK && (endp->bts_rtp == 0 || forward_ip)) {
if (dest == DEST_NETWORK && (endp->bts_rtp == 0 || cfg->forward_ip)) {
/* it was the BTS... */
if (!bts_ip || memcmp(&addr.sin_addr, &bts_in, sizeof(bts_in)) == 0) {
if (!cfg->bts_ip || memcmp(&addr.sin_addr, &cfg->bts_in, sizeof(cfg->bts_in)) == 0) {
if (fd == &endp->local_rtp) {
endp->bts_rtp = addr.sin_port;
} else {
@ -265,7 +216,7 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
}
/* dispatch */
if (audio_loop)
if (cfg->audio_loop)
dest = !dest;
if (dest == DEST_NETWORK) {
@ -279,7 +230,7 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
}
}
static int create_bind(struct bsc_fd *fd, int port)
static int create_bind(const char *source_addr, struct bsc_fd *fd, int port)
{
struct sockaddr_in addr;
int on = 1;
@ -305,15 +256,17 @@ static int create_bind(struct bsc_fd *fd, int port)
static int bind_rtp(struct mgcp_endpoint *endp)
{
if (create_bind(&endp->local_rtp, endp->rtp_port) != 0) {
struct mgcp_config *cfg = endp->cfg;
if (create_bind(cfg->source_addr, &endp->local_rtp, endp->rtp_port) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to create RTP port: %s:%d on 0x%x\n",
source_addr, endp->rtp_port, ENDPOINT_NUMBER(endp));
cfg->source_addr, endp->rtp_port, ENDPOINT_NUMBER(endp));
goto cleanup0;
}
if (create_bind(&endp->local_rtcp, endp->rtp_port + 1) != 0) {
if (create_bind(cfg->source_addr, &endp->local_rtcp, endp->rtp_port + 1) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to create RTCP port: %s:%d on 0x%x\n",
source_addr, endp->rtp_port + 1, ENDPOINT_NUMBER(endp));
cfg->source_addr, endp->rtp_port + 1, ENDPOINT_NUMBER(endp));
goto cleanup1;
}
@ -397,13 +350,14 @@ static struct msgb *send_response(int code, const char *msg, const char *trans)
return send_response_with_data(code, msg, trans, NULL);
}
static struct msgb *send_with_sdp(struct mgcp_endpoint *endp, const char *msg, const char *trans_id)
static struct msgb *send_with_sdp(struct mgcp_endpoint *endp,
const char *msg, const char *trans_id)
{
const char *addr = local_ip;
const char *addr = endp->cfg->local_ip;
char sdp_record[4096];
if (!addr)
addr = source_addr;
addr = endp->cfg->source_addr;
snprintf(sdp_record, sizeof(sdp_record) - 1,
"I: %d\n\n"
@ -412,7 +366,8 @@ static struct msgb *send_with_sdp(struct mgcp_endpoint *endp, const char *msg, c
"m=audio %d RTP/AVP %d\r\n"
"a=rtpmap:%d %s\r\n",
endp->ci, addr, endp->rtp_port,
audio_payload, audio_payload, audio_name);
endp->cfg->audio_payload, endp->cfg->audio_payload,
endp->cfg->audio_name);
return send_response_with_data(200, msg, trans_id, sdp_record);
}
@ -438,7 +393,7 @@ struct msgb *mgcp_create_rsip(void)
* - this can be a command (four letters, space, transaction id)
* - or a response (three numbers, space, transaction id)
*/
struct msgb *mgcp_handle_message(struct msgb *msg)
struct msgb *mgcp_handle_message(struct mgcp_config *cfg, struct msgb *msg)
{
int code;
struct msgb *resp = NULL;
@ -457,7 +412,7 @@ struct msgb *mgcp_handle_message(struct msgb *msg)
for (i = 0; i < ARRAY_SIZE(mgcp_requests); ++i)
if (strncmp(mgcp_requests[i].name, (const char *) &msg->data[0], 4) == 0) {
handled = 1;
resp = mgcp_requests[i].handle_request(msg);
resp = mgcp_requests[i].handle_request(cfg, msg);
break;
}
if (!handled) {
@ -504,21 +459,22 @@ static int find_msg_pointers(struct msgb *msg, struct mgcp_msg_ptr *ptrs, int pt
return found;
}
static struct mgcp_endpoint *find_endpoint(const char *mgcp)
static struct mgcp_endpoint *find_endpoint(struct mgcp_config *cfg, const char *mgcp)
{
char *endptr = NULL;
unsigned int gw = INT_MAX;
gw = strtoul(mgcp, &endptr, 16);
if (gw == 0 || gw >= number_endpoints || strcmp(endptr, "@mgw") != 0) {
if (gw == 0 || gw >= cfg->number_endpoints || strcmp(endptr, "@mgw") != 0) {
LOGP(DMGCP, LOGL_ERROR, "Not able to find endpoint: '%s'\n", mgcp);
return NULL;
}
return &endpoints[gw];
return &cfg->endpoints[gw];
}
static int analyze_header(struct msgb *msg, struct mgcp_msg_ptr *ptr, int size,
static int analyze_header(struct mgcp_config *cfg, struct msgb *msg,
struct mgcp_msg_ptr *ptr, int size,
const char **transaction_id, struct mgcp_endpoint **endp)
{
int found;
@ -553,7 +509,7 @@ static int analyze_header(struct msgb *msg, struct mgcp_msg_ptr *ptr, int size,
}
*transaction_id = (const char *)&msg->l3h[ptr[0].start];
*endp = find_endpoint((const char *)&msg->l3h[ptr[1].start]);
*endp = find_endpoint(cfg, (const char *)&msg->l3h[ptr[1].start]);
return *endp == NULL;
}
@ -581,14 +537,14 @@ static int verify_ci(const struct mgcp_endpoint *endp,
return 0;
}
static struct msgb *handle_audit_endpoint(struct msgb *msg)
static struct msgb *handle_audit_endpoint(struct mgcp_config *cfg, struct msgb *msg)
{
struct mgcp_msg_ptr data_ptrs[6];
int found, response;
const char *trans_id;
struct mgcp_endpoint *endp;
found = analyze_header(msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
found = analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
if (found != 0)
response = 500;
else
@ -612,7 +568,7 @@ static int parse_conn_mode(const char* msg, int *conn_mode)
return ret;
}
static struct msgb *handle_create_con(struct msgb *msg)
static struct msgb *handle_create_con(struct mgcp_config *cfg, struct msgb *msg)
{
struct mgcp_msg_ptr data_ptrs[6];
int found, i, line_start;
@ -620,7 +576,7 @@ static struct msgb *handle_create_con(struct msgb *msg)
struct mgcp_endpoint *endp;
int error_code = 500;
found = analyze_header(msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
found = analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
if (found != 0)
return send_response(500, "CRCX", trans_id);
@ -633,11 +589,11 @@ static struct msgb *handle_create_con(struct msgb *msg)
MSG_TOKENIZE_START
switch (msg->l3h[line_start]) {
case 'L':
endp->local_options = talloc_strdup(endpoints,
endp->local_options = talloc_strdup(cfg->endpoints,
(const char *)&msg->l3h[line_start + 3]);
break;
case 'C':
endp->callid = talloc_strdup(endpoints,
endp->callid = talloc_strdup(cfg->endpoints,
(const char *)&msg->l3h[line_start + 3]);
break;
case 'M':
@ -662,19 +618,19 @@ static struct msgb *handle_create_con(struct msgb *msg)
memset(&endp->remote, 0, sizeof(endp->remote));
/* bind to the port now */
endp->rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), rtp_base_port);
if (!early_bind && bind_rtp(endp) != 0)
endp->rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), cfg->rtp_base_port);
if (!cfg->early_bind && bind_rtp(endp) != 0)
goto error2;
/* assign a local call identifier or fail */
endp->ci = generate_call_id();
endp->ci = generate_call_id(cfg);
if (endp->ci == CI_UNUSED)
goto error2;
LOGP(DMGCP, LOGL_NOTICE, "Creating endpoint on: 0x%x CI: %u port: %u\n",
ENDPOINT_NUMBER(endp), endp->ci, endp->rtp_port);
if (change_cb)
change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_CRCX, endp->rtp_port, change_cb_data);
if (cfg->change_cb)
cfg->change_cb(cfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_CRCX, endp->rtp_port);
return send_with_sdp(endp, "CRCX", trans_id);
error:
@ -688,7 +644,7 @@ error2:
return send_response(error_code, "CRCX", trans_id);
}
static struct msgb *handle_modify_con(struct msgb *msg)
static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg)
{
struct mgcp_msg_ptr data_ptrs[6];
int found, i, line_start;
@ -696,7 +652,7 @@ static struct msgb *handle_modify_con(struct msgb *msg)
struct mgcp_endpoint *endp;
int error_code = 500;
found = analyze_header(msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
found = analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
if (found != 0)
return send_response(error_code, "MDCX", trans_id);
@ -767,8 +723,8 @@ static struct msgb *handle_modify_con(struct msgb *msg)
/* modify */
LOGP(DMGCP, LOGL_NOTICE, "Modified endpoint on: 0x%x Server: %s:%u\n",
ENDPOINT_NUMBER(endp), inet_ntoa(endp->remote), endp->net_rtp);
if (change_cb)
change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_MDCX, endp->rtp_port, change_cb_data);
if (cfg->change_cb)
cfg->change_cb(cfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_MDCX, endp->rtp_port);
return send_with_sdp(endp, "MDCX", trans_id);
error:
@ -781,7 +737,7 @@ error3:
return send_response(error_code, "MDCX", trans_id);
}
static struct msgb *handle_delete_con(struct msgb *msg)
static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg)
{
struct mgcp_msg_ptr data_ptrs[6];
int found, i, line_start;
@ -789,7 +745,7 @@ static struct msgb *handle_delete_con(struct msgb *msg)
struct mgcp_endpoint *endp;
int error_code = 500;
found = analyze_header(msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
found = analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp);
if (found != 0)
return send_response(error_code, "DLCX", trans_id);
@ -825,14 +781,14 @@ static struct msgb *handle_delete_con(struct msgb *msg)
talloc_free(endp->callid);
talloc_free(endp->local_options);
if (!early_bind) {
if (!cfg->early_bind) {
bsc_unregister_fd(&endp->local_rtp);
bsc_unregister_fd(&endp->local_rtcp);
}
endp->net_rtp = endp->net_rtcp = endp->bts_rtp = endp->bts_rtcp = 0;
if (change_cb)
change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_DLCX, endp->rtp_port, change_cb_data);
if (cfg->change_cb)
cfg->change_cb(cfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_DLCX, endp->rtp_port);
return send_response(250, "DLCX", trans_id);
@ -846,299 +802,48 @@ error3:
return send_response(error_code, "DLCX", trans_id);
}
/*
* vty code for mgcp below
*/
struct cmd_node mgcp_node = {
MGCP_NODE,
"%s(mgcp)#",
1,
};
static int config_write_mgcp(struct vty *vty)
struct mgcp_config *mgcp_config_alloc(void)
{
vty_out(vty, "mgcp%s", VTY_NEWLINE);
if (local_ip)
vty_out(vty, " local ip %s%s", local_ip, VTY_NEWLINE);
if (bts_ip)
vty_out(vty, " bts ip %s%s", bts_ip, VTY_NEWLINE);
vty_out(vty, " bind ip %s%s", source_addr, VTY_NEWLINE);
vty_out(vty, " bind port %u%s", source_port, VTY_NEWLINE);
vty_out(vty, " bind early %u%s", !!early_bind, VTY_NEWLINE);
vty_out(vty, " rtp base %u%s", rtp_base_port, VTY_NEWLINE);
vty_out(vty, " sdp audio payload number %u%s", audio_payload, VTY_NEWLINE);
vty_out(vty, " sdp audio payload name %s%s", audio_name, VTY_NEWLINE);
vty_out(vty, " loop %u%s", !!audio_loop, VTY_NEWLINE);
vty_out(vty, " endpoints %u%s", number_endpoints, VTY_NEWLINE);
if (forward_ip)
vty_out(vty, " forward audio ip %s%s", forward_ip, VTY_NEWLINE);
if (forward_port != 0)
vty_out(vty, " forward audio port %d%s", forward_port, VTY_NEWLINE);
struct mgcp_config *cfg;
return CMD_SUCCESS;
cfg = talloc_zero(NULL, struct mgcp_config);
if (!cfg) {
LOGP(DMGCP, LOGL_FATAL, "Failed to allocate config.\n");
return NULL;
}
cfg->source_port = 2427;
cfg->source_addr = talloc_strdup(cfg, "0.0.0.0");
cfg->audio_name = talloc_strdup(cfg, "GSM-EFR/8000");
cfg->audio_payload = 97;
cfg->rtp_base_port = RTP_PORT_DEFAULT;
return cfg;
}
DEFUN(show_mcgp, show_mgcp_cmd, "show mgcp",
SHOW_STR "Display information about the MGCP Media Gateway")
int mgcp_endpoints_allocate(struct mgcp_config *cfg)
{
int i;
vty_out(vty, "MGCP is up and running with %u endpoints:%s", number_endpoints - 1, VTY_NEWLINE);
for (i = 1; i < number_endpoints; ++i) {
struct mgcp_endpoint *endp = &endpoints[i];
vty_out(vty, " Endpoint 0x%.2x: CI: %d net: %u/%u bts: %u/%u%s",
i, endp->ci,
ntohs(endp->net_rtp), ntohs(endp->net_rtcp),
ntohs(endp->bts_rtp), ntohs(endp->bts_rtcp), VTY_NEWLINE);
/* Initialize all endpoints */
cfg->endpoints = _talloc_zero_array(cfg,
sizeof(struct mgcp_endpoint),
cfg->number_endpoints, "endpoints");
if (!cfg->endpoints)
return -1;
for (i = 0; i < cfg->number_endpoints; ++i) {
cfg->endpoints[i].local_rtp.fd = -1;
cfg->endpoints[i].local_rtcp.fd = -1;
cfg->endpoints[i].ci = CI_UNUSED;
cfg->endpoints[i].cfg = cfg;
}
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp,
cfg_mgcp_cmd,
"mgcp",
"Configure the MGCP")
{
vty->node = MGCP_NODE;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_local_ip,
cfg_mgcp_local_ip_cmd,
"local ip IP",
"Set the IP to be used in SDP records")
{
local_ip = talloc_strdup(tall_bsc_ctx, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bts_ip,
cfg_mgcp_bts_ip_cmd,
"bts ip IP",
"Set the IP of the BTS for RTP forwarding")
{
bts_ip = talloc_strdup(tall_bsc_ctx, argv[0]);
inet_aton(bts_ip, &bts_in);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_ip,
cfg_mgcp_bind_ip_cmd,
"bind ip IP",
"Bind the MGCP to this local addr")
{
source_addr = talloc_strdup(tall_bsc_ctx, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_port,
cfg_mgcp_bind_port_cmd,
"bind port <0-65534>",
"Bind the MGCP to this port")
{
unsigned int port = atoi(argv[0]);
if (port > 65534) {
vty_out(vty, "%% wrong bind port '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
source_port = port;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_early,
cfg_mgcp_bind_early_cmd,
"bind early (0|1)",
"Bind all RTP ports early")
{
unsigned int bind = atoi(argv[0]);
if (bind != 0 && bind != 1) {
vty_out(vty, "%% param must be 0 or 1.%s", VTY_NEWLINE);
return CMD_WARNING;
}
early_bind = bind == 1;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_rtp_base_port,
cfg_mgcp_rtp_base_port_cmd,
"rtp base <0-65534>",
"Base port to use")
{
unsigned int port = atoi(argv[0]);
if (port > 65534) {
vty_out(vty, "%% wrong base port '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
rtp_base_port = port;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_sdp_payload_number,
cfg_mgcp_sdp_payload_number_cmd,
"sdp audio payload number <1-255>",
"Set the audio codec to use")
{
unsigned int payload = atoi(argv[0]);
if (payload > 255) {
vty_out(vty, "%% wrong payload number '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
audio_payload = payload;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_sdp_payload_name,
cfg_mgcp_sdp_payload_name_cmd,
"sdp audio payload name NAME",
"Set the audio name to use")
{
audio_name = talloc_strdup(tall_bsc_ctx, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_loop,
cfg_mgcp_loop_cmd,
"loop (0|1)",
"Loop the audio")
{
audio_loop = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_number_endp,
cfg_mgcp_number_endp_cmd,
"number endpoints <0-65534>",
"The number of endpoints to allocate. This is not dynamic.")
{
/* + 1 as we start counting at one */
number_endpoints = atoi(argv[0]) + 1;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_forward_ip,
cfg_mgcp_forward_ip_cmd,
"forward audio ip IP",
"Forward packets from and to the IP. This disables most of the MGCP feature.")
{
if (forward_ip)
talloc_free(forward_ip);
forward_ip = talloc_strdup(tall_bsc_ctx, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_forward_port,
cfg_mgcp_forward_port_cmd,
"forward audio port <1-15000>",
"Forward packets from and to the port. This disables most of the MGCP feature.")
{
forward_port = atoi(argv[0]);
return CMD_SUCCESS;
}
int mgcp_vty_init(void)
{
install_element(VIEW_NODE, &show_mgcp_cmd);
install_element(CONFIG_NODE, &cfg_mgcp_cmd);
install_node(&mgcp_node, config_write_mgcp);
install_default(MGCP_NODE);
install_element(MGCP_NODE, &cfg_mgcp_local_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bts_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bind_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bind_port_cmd);
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_sdp_payload_number_cmd);
install_element(MGCP_NODE, &cfg_mgcp_sdp_payload_name_cmd);
install_element(MGCP_NODE, &cfg_mgcp_loop_cmd);
install_element(MGCP_NODE, &cfg_mgcp_number_endp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_forward_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_forward_port_cmd);
return 0;
}
int mgcp_parse_config(const char *config_file, struct gsm_network *dummy_network)
int mgcp_bind_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
{
int i, rc;
rc = vty_read_config_file(config_file);
if (rc < 0) {
fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file);
return rc;
}
if (!bts_ip)
fprintf(stderr, "No BTS ip address specified. This will allow everyone to connect.\n");
endpoints = _talloc_zero_array(tall_bsc_ctx,
sizeof(struct mgcp_endpoint),
number_endpoints, "endpoints");
if (!endpoints) {
fprintf(stderr, "Failed to allocate endpoints: %d. Quitting.\n", number_endpoints);
return -1;
}
/* Initialize all endpoints */
for (i = 0; i < number_endpoints; ++i) {
endpoints[i].local_rtp.fd = -1;
endpoints[i].local_rtcp.fd = -1;
endpoints[i].ci = CI_UNUSED;
}
/*
* This application supports two modes.
* 1.) a true MGCP gateway with support for AUEP, CRCX, MDCX, DLCX
* 2.) plain forwarding of RTP packets on the endpoints.
* both modes are mutual exclusive
*/
if (forward_ip) {
int port = rtp_base_port;
if (forward_port != 0)
port = forward_port;
if (!early_bind) {
LOGP(DMGCP, LOGL_NOTICE, "Forwarding requires early bind.\n");
return -1;
}
/*
* Store the forward IP and assign a ci. For early bind
* the sockets will be created after this.
*/
for (i = 1; i < number_endpoints; ++i) {
struct mgcp_endpoint *endp = &endpoints[i];
inet_aton(forward_ip, &endp->remote);
endp->ci = CI_UNUSED + 23;
endp->net_rtp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), port));
endp->net_rtcp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), port) + 1);
}
LOGP(DMGCP, LOGL_NOTICE, "Configured for Audio Forwarding.\n");
}
/* early bind */
if (early_bind) {
for (i = 1; i < number_endpoints; ++i) {
struct mgcp_endpoint *endp = &endpoints[i];
endp->rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), rtp_base_port);
if (bind_rtp(endp) != 0) {
LOGP(DMGCP, LOGL_FATAL, "Failed to bind: %d\n", endp->rtp_port);
return -1;
}
}
}
return !!forward_ip;
}
void mgcp_set_change_cb(mgcp_change cb, void *data)
{
change_cb = cb;
change_cb_data = data;
endp->rtp_port = rtp_port;
return bind_rtp(endp);
}

338
openbsc/src/mgcp/mgcp_vty.c Normal file
View File

@ -0,0 +1,338 @@
/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
/* The protocol implementation */
/*
* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2010 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <sys/types.h>
#include <openbsc/debug.h>
#include <openbsc/mgcp.h>
#include <openbsc/mgcp_internal.h>
#include <openbsc/talloc.h>
#include <vty/command.h>
#include <vty/vty.h>
static struct mgcp_config *g_cfg = NULL;
/*
* vty code for mgcp below
*/
struct cmd_node mgcp_node = {
MGCP_NODE,
"%s(mgcp)#",
1,
};
static int config_write_mgcp(struct vty *vty)
{
vty_out(vty, "mgcp%s", VTY_NEWLINE);
if (g_cfg->local_ip)
vty_out(vty, " local ip %s%s", g_cfg->local_ip, VTY_NEWLINE);
if (g_cfg->bts_ip)
vty_out(vty, " bts ip %s%s", g_cfg->bts_ip, VTY_NEWLINE);
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, " bind early %u%s", !!g_cfg->early_bind, VTY_NEWLINE);
vty_out(vty, " rtp base %u%s", g_cfg->rtp_base_port, VTY_NEWLINE);
vty_out(vty, " sdp audio payload number %u%s", g_cfg->audio_payload, VTY_NEWLINE);
vty_out(vty, " sdp audio payload name %s%s", g_cfg->audio_name, VTY_NEWLINE);
vty_out(vty, " loop %u%s", !!g_cfg->audio_loop, VTY_NEWLINE);
vty_out(vty, " endpoints %u%s", g_cfg->number_endpoints, VTY_NEWLINE);
if (g_cfg->forward_ip)
vty_out(vty, " forward audio ip %s%s", g_cfg->forward_ip, VTY_NEWLINE);
if (g_cfg->forward_port != 0)
vty_out(vty, " forward audio port %d%s", g_cfg->forward_port, VTY_NEWLINE);
return CMD_SUCCESS;
}
DEFUN(show_mcgp, show_mgcp_cmd, "show mgcp",
SHOW_STR "Display information about the MGCP Media Gateway")
{
int i;
vty_out(vty, "MGCP is up and running with %u endpoints:%s", g_cfg->number_endpoints - 1, VTY_NEWLINE);
for (i = 1; i < g_cfg->number_endpoints; ++i) {
struct mgcp_endpoint *endp = &g_cfg->endpoints[i];
vty_out(vty, " Endpoint 0x%.2x: CI: %d net: %u/%u bts: %u/%u%s",
i, endp->ci,
ntohs(endp->net_rtp), ntohs(endp->net_rtcp),
ntohs(endp->bts_rtp), ntohs(endp->bts_rtcp), VTY_NEWLINE);
}
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp,
cfg_mgcp_cmd,
"mgcp",
"Configure the MGCP")
{
vty->node = MGCP_NODE;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_local_ip,
cfg_mgcp_local_ip_cmd,
"local ip IP",
"Set the IP to be used in SDP records")
{
if (g_cfg->local_ip)
talloc_free(g_cfg->local_ip);
g_cfg->local_ip = talloc_strdup(g_cfg, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bts_ip,
cfg_mgcp_bts_ip_cmd,
"bts ip IP",
"Set the IP of the BTS for RTP forwarding")
{
if (g_cfg->bts_ip)
talloc_free(g_cfg->bts_ip);
g_cfg->bts_ip = talloc_strdup(g_cfg, argv[0]);
inet_aton(g_cfg->bts_ip, &g_cfg->bts_in);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_ip,
cfg_mgcp_bind_ip_cmd,
"bind ip IP",
"Bind the MGCP to this local addr")
{
if (g_cfg->source_addr)
talloc_free(g_cfg->source_addr);
g_cfg->source_addr = talloc_strdup(g_cfg, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_port,
cfg_mgcp_bind_port_cmd,
"bind port <0-65534>",
"Bind the MGCP to this port")
{
unsigned int port = atoi(argv[0]);
if (port > 65534) {
vty_out(vty, "%% wrong bind port '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
g_cfg->source_port = port;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_bind_early,
cfg_mgcp_bind_early_cmd,
"bind early (0|1)",
"Bind all RTP ports early")
{
unsigned int bind = atoi(argv[0]);
if (bind != 0 && bind != 1) {
vty_out(vty, "%% param must be 0 or 1.%s", VTY_NEWLINE);
return CMD_WARNING;
}
g_cfg->early_bind = bind == 1;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_rtp_base_port,
cfg_mgcp_rtp_base_port_cmd,
"rtp base <0-65534>",
"Base port to use")
{
unsigned int port = atoi(argv[0]);
if (port > 65534) {
vty_out(vty, "%% wrong base port '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
g_cfg->rtp_base_port = port;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_sdp_payload_number,
cfg_mgcp_sdp_payload_number_cmd,
"sdp audio payload number <1-255>",
"Set the audio codec to use")
{
unsigned int payload = atoi(argv[0]);
if (payload > 255) {
vty_out(vty, "%% wrong payload number '%s'%s", argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
g_cfg->audio_payload = payload;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_sdp_payload_name,
cfg_mgcp_sdp_payload_name_cmd,
"sdp audio payload name NAME",
"Set the audio name to use")
{
if (g_cfg->audio_name)
talloc_free(g_cfg->audio_name);
g_cfg->audio_name = talloc_strdup(g_cfg, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_loop,
cfg_mgcp_loop_cmd,
"loop (0|1)",
"Loop the audio")
{
g_cfg->audio_loop = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_number_endp,
cfg_mgcp_number_endp_cmd,
"number endpoints <0-65534>",
"The number of endpoints to allocate. This is not dynamic.")
{
/* + 1 as we start counting at one */
g_cfg->number_endpoints = atoi(argv[0]) + 1;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_forward_ip,
cfg_mgcp_forward_ip_cmd,
"forward audio ip IP",
"Forward packets from and to the IP. This disables most of the MGCP feature.")
{
if (g_cfg->forward_ip)
talloc_free(g_cfg->forward_ip);
g_cfg->forward_ip = talloc_strdup(g_cfg, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_forward_port,
cfg_mgcp_forward_port_cmd,
"forward audio port <1-15000>",
"Forward packets from and to the port. This disables most of the MGCP feature.")
{
g_cfg->forward_port = atoi(argv[0]);
return CMD_SUCCESS;
}
int mgcp_vty_init(void)
{
install_element(VIEW_NODE, &show_mgcp_cmd);
install_element(CONFIG_NODE, &cfg_mgcp_cmd);
install_node(&mgcp_node, config_write_mgcp);
install_default(MGCP_NODE);
install_element(MGCP_NODE, &cfg_mgcp_local_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bts_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bind_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_bind_port_cmd);
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_sdp_payload_number_cmd);
install_element(MGCP_NODE, &cfg_mgcp_sdp_payload_name_cmd);
install_element(MGCP_NODE, &cfg_mgcp_loop_cmd);
install_element(MGCP_NODE, &cfg_mgcp_number_endp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_forward_ip_cmd);
install_element(MGCP_NODE, &cfg_mgcp_forward_port_cmd);
return 0;
}
int mgcp_parse_config(const char *config_file, struct mgcp_config *cfg)
{
int i, rc;
g_cfg = cfg;
rc = vty_read_config_file(config_file);
if (rc < 0) {
fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file);
return rc;
}
if (!g_cfg->bts_ip)
fprintf(stderr, "No BTS ip address specified. This will allow everyone to connect.\n");
if (mgcp_endpoints_allocate(g_cfg) != 0) {
fprintf(stderr, "Failed to allocate endpoints: %d. Quitting.\n", g_cfg->number_endpoints);
return -1;
}
/*
* This application supports two modes.
* 1.) a true MGCP gateway with support for AUEP, CRCX, MDCX, DLCX
* 2.) plain forwarding of RTP packets on the endpoints.
* both modes are mutual exclusive
*/
if (g_cfg->forward_ip) {
int port = g_cfg->rtp_base_port;
if (g_cfg->forward_port != 0)
port = g_cfg->forward_port;
if (!g_cfg->early_bind) {
LOGP(DMGCP, LOGL_NOTICE, "Forwarding requires early bind.\n");
return -1;
}
/*
* Store the forward IP and assign a ci. For early bind
* the sockets will be created after this.
*/
for (i = 1; i < g_cfg->number_endpoints; ++i) {
struct mgcp_endpoint *endp = &g_cfg->endpoints[i];
inet_aton(g_cfg->forward_ip, &endp->remote);
endp->ci = CI_UNUSED + 23;
endp->net_rtp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), port));
endp->net_rtcp = htons(rtp_calculate_port(ENDPOINT_NUMBER(endp), port) + 1);
}
LOGP(DMGCP, LOGL_NOTICE, "Configured for Audio Forwarding.\n");
}
/* early bind */
if (g_cfg->early_bind) {
for (i = 1; i < g_cfg->number_endpoints; ++i) {
struct mgcp_endpoint *endp = &g_cfg->endpoints[i];
int rtp_port;
rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), g_cfg->rtp_base_port);
if (mgcp_bind_rtp_port(endp, rtp_port) != 0) {
LOGP(DMGCP, LOGL_FATAL, "Failed to bind: %d\n", endp->rtp_port);
return -1;
}
}
}
return !!g_cfg->forward_ip;
}
struct gsm_network;
int bsc_vty_init(struct gsm_network *dummy)
{
cmd_init(1);
vty_init();
mgcp_vty_init();
return 0;
}