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cellmgr-ng/src/mgcp_ss7.c

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/* Use the UniPorte library to allocate endpoints */
/*
* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 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 Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <mgcp_ss7.h>
#include <mgcp/mgcp.h>
#include <mgcp/mgcp_internal.h>
#include <cellmgr_debug.h>
#include <osmocore/select.h>
#include <osmocore/talloc.h>
#include <osmocore/timer.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/vty.h>
#include <osmocom/vty/telnet_interface.h>
/* uniporte includes */
#ifndef NO_UNIPORTE
#include <UniPorte.h>
#include <BusMastHostApi.h>
#include <MtnSa.h>
#include <SystemLayer.h>
#include <PredefMobs.h>
#endif
#include <errno.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <getopt.h>
static struct log_target *stderr_target;
static char *config_file = "mgcp_mgw.cfg";
static int exit_on_failure = 0;
#define TO_MGW_PORT(no) (no-1)
#define FROM_MGW_PORT(no) (no+1)
static struct mgcp_ss7 *s_ss7;
static struct mgcp_config *g_cfg;
static int s_vad_enabled = 1;
/* gain settings */
int s_digital_inp_gain = 31;
int s_digital_out_gain = 31;
int s_upstr_agc_enbl = 0;
int s_upstr_adp_rate = 100;
int s_upstr_max_gain = 46;
int s_upstr_target_lvl = 20;
int s_dwnstr_agc_enbl = 0;
int s_dwnstr_adp_rate = 100;
int s_dwnstr_max_gain = 46;
int s_dwnstr_target_lvl = 20;
struct mgcp_ss7_endpoint {
unsigned int port;
int block;
};
static void mgcp_ss7_endp_free(struct mgcp_ss7* ss7, int endp);
static void mgcp_ss7_do_exec(struct mgcp_ss7 *mgcp, uint8_t type, uint32_t port, uint32_t param);
static void mgcp_mgw_vty_init();
static void check_exit(int status)
{
if (exit_on_failure && status == 21) {
LOGP(DMGCP, LOGL_ERROR, "Failure detected with the MGW. Exiting.\n");
exit(-1);
}
}
#ifndef NO_UNIPORTE
static void Force_Poll( int milliseconds )
{
int timeout = 0;
unsigned long startTime;
startTime = SysLyrGetTime();
/* Loop until the specified number of milliseconds
* have elapsed.
*/
do {
MtnSaPoll();
SysLyrSleep( 20 );
} while ((SysLyrGetTime()-startTime)<(unsigned long)milliseconds);
return;
}
static char eventName[Event_TELEMETRY_DATA + 1][128] = {
{ "Event_NOT_READY" },
{ "Event_READY" },
{ "Event_ANSWER" },
{ "Event_OUTGOING_CALL" },
{ "Event_ABORT" },
{ "Event_CONNECT" },
{ "Event_DISCONNECT" },
{ "Event_MANAGED_OBJECT_GET_COMPLETE" },
{ "Event_MANAGED_OBJECT_GET_AND_CLEAR_COMPLETE" },
{ "Event_MANAGED_OBJECT_SET_COMPLETE" },
{ "Event_MANAGED_OBJECT_TRAP" },
{ "Event_PREDEF_MOB_SET_COMPLETE" },
{ "Event_PREDEF_MOB_GET_COMPLETE" },
{ "Event_USER_MOB_DEFINE_COMPLETE" },
{ "Event_USER_MOB_SET_COMPLETE" },
{ "Event_USER_MOB_GET_COMPLETE" },
{ "Event_RECEIVE_DATA" },
{ "Event_SEND_COMPLETE" },
{ "Event_TDM_CONNECT_COMPLETE" },
{ "Event_LOG" },
{ "Event_DEVICE_IN_CONTACT" },
{ "Event_DEVICE_MANAGED" },
{ "Event_DEVICE_OUT_OF_CONTACT" },
{ "Event_TELEMETRY_DATA" } };
static char stateName[PortState_END_OF_ENUM][128] = {
{ "PortState_IDLE" },
{ "PortState_SIGNALING" },
{ "PortState_INITIATING" },
{ "PortState_LINK" },
{ "PortState_TRAINING" },
{ "PortState_EC_NEGOTIATING" },
{ "PortState_DATA" },
{ "PortState_RESYNCING" },
{ "PortState_FAX" },
{ "PortState_COMMAND_ESCAPE" },
{ "PortState_TERMINATING" },
{ "PortState_VOICE" },
{ "PortState_PORT_RESET" },
{ "PortState_DSP_RESET" },
{ "PortState_ALLOCATED" },
{ "PortState_OUT_OF_SERVICE" },
{ "PortState_RECONFIGURE" },
{ "PortState_ON_HOLD" } };
static int uniporte_events(unsigned long port, EventTypeT event,
void *event_data, unsigned long event_data_length ) {
char text[128];
ManObjectInfoPtr info;
DataReceiveInfoPtr dataInfo;
int i;
ToneDetectionPtr tones;
/* Don't print output when we receive data or complete
* sending data. That would be too verbose.
*/
if (event==Event_DEVICE_MANAGED) {
MtnSaSetManObject(0, ChannelType_ETHERNET, ManObj_C_MOE_COMM_LOSS_RESET_DELAY ,
10, 0);
}
else if (event==Event_MANAGED_OBJECT_TRAP ) {
info = (ManObjectInfoPtr)event_data;
if (info->trapId == Trap_PORT_STATE_CHANGE) {
sprintf(text, "Port #%ld, Change to state %s", port, stateName[info->value]);
puts(text);
/* update the mgcp state */
int mgcp_endp = FROM_MGW_PORT(port);
if (s_ss7->mgw_end[mgcp_endp].block != 1)
fprintf(stderr, "State change on a non blocked port. ERROR.\n");
s_ss7->mgw_end[mgcp_endp].block = 0;
}
}
else if ( event == Event_MANAGED_OBJECT_SET_COMPLETE ) {
info = (ManObjectInfoPtr)event_data;
sprintf(text, "Object %d value %d status %d", info->object, info->value,
info->status );
puts(text);
check_exit(info->status);
}
else if ( ( event == Event_USER_MOB_SET_COMPLETE ) ||
( event == Event_USER_MOB_DEFINE_COMPLETE ) )
{
info = (ManObjectInfoPtr)event_data;
sprintf( text, "Mob ID %d status %d", info->MOBId, info->status );
puts(text);
check_exit(info->status);
}
else if ( event == Event_USER_MOB_GET_COMPLETE )
{
info = (ManObjectInfoPtr)event_data;
sprintf( text, "Mob ID %d status %d", info->MOBId, info->status );
puts(text);
check_exit(info->status);
}
else if (event == Event_CONNECT)
{
sprintf(text, "Port %d connected",port );
}
else if (event == Event_PREDEF_MOB_GET_COMPLETE)
{
info = (ManObjectInfoPtr)event_data;
sprintf(text, "Mob ID %d status %d", info->MOBId, info->status );
puts(text);
check_exit(info->status);
}
return( 0 );
}
static int initialize_uniporte(struct mgcp_ss7 *mgcp)
{
ProfileT profile;
unsigned long mgw_address;
int rc;
LOGP(DMGCP, LOGL_NOTICE, "Initializing MGW on %s\n", mgcp->cfg->bts_ip);
MtnSaSetEthernetOnly();
rc = MtnSaStartup(uniporte_events);
if (rc != 0)
LOGP(DMGCP, LOGL_ERROR, "Failed to startup the MGW.\n");
SysEthGetHostAddress(mgcp->cfg->bts_ip, &mgw_address);
rc = MtnSaRegisterEthernetDevice(mgw_address, 0);
if (rc != 0)
LOGP(DMGCP, LOGL_ERROR, "Failed to register ethernet.\n");
Force_Poll(2000);
MtnSaTakeOverDevice(0);
Force_Poll(2000);
MtnSaSetReceiveTraps(1);
MtnSaSetTransparent();
/* change the voice profile to AMR */
MtnSaGetProfile(ProfileType_VOICE, 0, &profile);
profile.countryCode = CountryCode_INTERNAT_ALAW;
MtnSaSetProfile(ProfileType_VOICE, 0, &profile);
if (MtnSaGetPortCount() == 0)
return -1;
return 0;
}
static void* start_uniporte(void *_ss7) {
struct llist_head blocked;
struct mgcp_ss7_cmd *cmd, *tmp;
struct mgcp_ss7 *ss7 = _ss7;
s_ss7 = ss7;
if (initialize_uniporte(ss7) != 0) {
fprintf(stderr, "Failed to create Uniporte.\n");
exit(-1);
return 0;
}
fprintf(stderr, "Created the MGCP processing thread.\n");
INIT_LLIST_HEAD(&blocked);
for (;;) {
thread_swap(ss7->cmd_queue);
start_over:
/* handle items that are currently blocked */
llist_for_each_entry_safe(cmd, tmp, &blocked, entry) {
if (ss7->mgw_end[cmd->port].block)
continue;
mgcp_ss7_do_exec(ss7, cmd->type, cmd->port, cmd->param);
llist_del(&cmd->entry);
free(cmd);
/* We might have unblocked something, make sure we operate in order */
MtnSaPoll();
goto start_over;
}
llist_for_each_entry_safe(cmd, tmp, ss7->cmd_queue->main_head, entry) {
if (ss7->mgw_end[cmd->port].block) {
llist_del(&cmd->entry);
llist_add_tail(&cmd->entry, &blocked);
continue;
}
mgcp_ss7_do_exec(ss7, cmd->type, cmd->port, cmd->param);
llist_del(&cmd->entry);
free(cmd);
/* We might have unblocked something, make sure we operate in order */
MtnSaPoll();
goto start_over;
}
Force_Poll(20);
}
return 0;
}
#endif
static void update_mute_status(int mgw_port, int conn_mode)
{
#ifndef NO_UNIPORTE
if (conn_mode == MGCP_CONN_NONE) {
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_UPSTREAM_MUTE, 1, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_DOWNSTREAM_MUTE, 1, 0);
} else if (conn_mode == MGCP_CONN_RECV_ONLY) {
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_UPSTREAM_MUTE, 1, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_DOWNSTREAM_MUTE, 0, 0);
} else if (conn_mode == MGCP_CONN_SEND_ONLY) {
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_UPSTREAM_MUTE, 0, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_DOWNSTREAM_MUTE, 1, 0);
} else if (conn_mode == MGCP_CONN_RECV_SEND) {
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_UPSTREAM_MUTE, 0, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT, ManObj_C_VOICE_DOWNSTREAM_MUTE, 0, 0);
} else {
LOGP(DMGCP, LOGL_ERROR, "Unhandled conn mode: %d\n", conn_mode);
}
#endif
}
#ifndef NO_UNIPORTE
static void allocate_endp(struct mgcp_ss7 *ss7, int endp_no)
{
int mgw_port;
unsigned long mgw_address, loc_address;
struct mgcp_ss7_endpoint *mgw_endp = &ss7->mgw_end[endp_no];
struct mgcp_endpoint *mg_endp = &ss7->cfg->endpoints[endp_no];
mgw_port = TO_MGW_PORT(endp_no);
mgw_endp->port = MtnSaAllocate(mgw_port);
if (mgw_endp->port == UINT_MAX) {
fprintf(stderr, "Failed to allocate the port: %d\n", endp_no);
return;
}
/* Gain settings, apply before switching the port to voice */
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_VOICE_INPUT_DIGITAL_GAIN, s_digital_inp_gain, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_VOICE_OUTPUT_DIGITAL_GAIN, s_digital_out_gain, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_US_AGC_ENABLE, s_upstr_agc_enbl, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_DS_AGC_ENABLE, s_dwnstr_agc_enbl, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_US_ADAPTATION_RATE, s_upstr_adp_rate, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_DS_ADAPTATION_RATE, s_dwnstr_adp_rate, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_US_MAX_APPLIED_GAIN, s_upstr_max_gain, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_DS_MAX_APPLIED_GAIN, s_dwnstr_max_gain, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_US_TARGET_LEVEL, s_upstr_target_lvl, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_US_TARGET_LEVEL, s_dwnstr_target_lvl, 0);
/* Select AMR 5.9, Payload 98, no CRC, hardcoded */
MtnSaApplyProfile(mgw_port, ProfileType_VOICE, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_DATA_PATH, DataPathT_ETHERNET, 0 );
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_VOICE_RTP_TELEPHONE_EVENT_PT_TX, ss7->cfg->audio_payload, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_RTP_AMR_PAYLOAD_TYPE, ss7->cfg->audio_payload, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_RTP_AMR_PAYLOAD_FORMAT, RtpAmrPayloadFormat_OCTET_ALIGNED, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_G_VOICE_ENCODING, Voice_Encoding_AMR_5_90, 0);
MtnSaSetManObject(mgw_port, ChannelType_PORT,
ManObj_C_VOICE_VAD_CNG, s_vad_enabled, 0);
update_mute_status(mgw_port, mg_endp->conn_mode);
/* set the addresses */
SysEthGetHostAddress(ss7->cfg->bts_ip, &mgw_address);
SysEthGetHostAddress(ss7->cfg->local_ip, &loc_address);
MtnSaSetVoIpAddresses(mgw_port,
mgw_address, mg_endp->rtp_port,
loc_address, mg_endp->rtp_port);
MtnSaConnect(mgw_port, mgw_port);
mgw_endp->block = 1;
}
#endif
static void mgcp_ss7_do_exec(struct mgcp_ss7 *mgcp, uint8_t type, uint32_t port, uint32_t param)
{
#ifndef NO_UNIPORTE
struct mgcp_ss7_endpoint *mgw_endp = &mgcp->mgw_end[port];
int rc;
switch (type) {
case MGCP_SS7_MUTE_STATUS:
if (mgw_endp->port != UINT_MAX)
update_mute_status(TO_MGW_PORT(port), param);
break;
case MGCP_SS7_DELETE:
if (mgw_endp->port != UINT_MAX) {
rc = MtnSaDisconnect(mgw_endp->port);
if (rc != 0)
fprintf(stderr, "Failed to disconnect port: %u\n", mgw_endp->port);
rc = MtnSaDeallocate(mgw_endp->port);
if (rc != 0)
fprintf(stderr, "Failed to deallocate port: %u\n", mgw_endp->port);
mgw_endp->port = UINT_MAX;
mgw_endp->block = 1;
}
break;
case MGCP_SS7_ALLOCATE:
allocate_endp(mgcp, port);
break;
case MGCP_SS7_SHUTDOWN:
MtnSaShutdown();
break;
}
#endif
}
void mgcp_ss7_exec(struct mgcp_ss7 *mgcp, uint8_t type, uint32_t port, uint32_t param)
{
struct mgcp_ss7_cmd *cmd = malloc(sizeof(*cmd));
memset(cmd, 0, sizeof(*cmd));
cmd->type = type;
cmd->port = port;
cmd->param = param;
thread_safe_add(mgcp->cmd_queue, &cmd->entry);
}
static int ss7_allocate_endpoint(struct mgcp_ss7 *ss7, int endp_no, struct mgcp_ss7_endpoint *endp)
{
struct mgcp_endpoint *mg_endp;
mg_endp = &ss7->cfg->endpoints[endp_no];
mg_endp->bts_rtp = htons(mg_endp->rtp_port);
mg_endp->bts_rtcp = htons(mg_endp->rtp_port + 1);
mg_endp->bts = ss7->cfg->bts_in;
mgcp_ss7_exec(ss7, MGCP_SS7_ALLOCATE, endp_no, 0);
return MGCP_POLICY_CONT;
}
static int ss7_modify_endpoint(struct mgcp_ss7 *ss7, int endp_no, struct mgcp_ss7_endpoint *endp)
{
struct mgcp_endpoint *mg_endp;
mg_endp = &ss7->cfg->endpoints[endp_no];
mgcp_ss7_exec(ss7, MGCP_SS7_MUTE_STATUS, endp_no, mg_endp->conn_mode);
/*
* Just assume that we have the data now.
*/
mgcp_send_dummy(mg_endp);
/* update the remote end */
return MGCP_POLICY_CONT;
}
static int ss7_delete_endpoint(struct mgcp_ss7 *ss7, int endp_no, struct mgcp_ss7_endpoint *endp)
{
mgcp_ss7_endp_free(ss7, endp_no);
return MGCP_POLICY_CONT;
}
static int mgcp_ss7_policy(struct mgcp_config *cfg, int endp_no, int state, const char *trans)
{
int rc;
struct mgcp_ss7 *ss7;
struct mgcp_ss7_endpoint *endp;
ss7 = (struct mgcp_ss7 *) cfg->data;
endp = &ss7->mgw_end[endp_no];
/* TODO: Make it async and wait for the port to be connected */
rc = MGCP_POLICY_REJECT;
switch (state) {
case MGCP_ENDP_CRCX:
rc = ss7_allocate_endpoint(ss7, endp_no, endp);
break;
case MGCP_ENDP_MDCX:
rc = ss7_modify_endpoint(ss7, endp_no, endp);
break;
case MGCP_ENDP_DLCX:
rc = ss7_delete_endpoint(ss7, endp_no, endp);
break;
}
return rc;
}
static void enqueue_msg(struct write_queue *queue, struct sockaddr_in *addr, struct msgb *msg)
{
struct sockaddr_in *data;
data = (struct sockaddr_in *) msgb_push(msg, sizeof(*data));
*data = *addr;
if (write_queue_enqueue(queue, msg) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to queue the message.\n");
msgb_free(msg);
}
}
static int write_call_agent(struct bsc_fd *bfd, struct msgb *msg)
{
int rc;
struct sockaddr_in *addr;
addr = (struct sockaddr_in *) msg->data;
rc = sendto(bfd->fd, msg->l2h, msgb_l2len(msg), 0,
(struct sockaddr *) addr, sizeof(*addr));
if (rc != msgb_l2len(msg))
LOGP(DMGCP, LOGL_ERROR, "Failed to write MGCP message: rc: %d errno: %d\n", rc, errno);
return rc;
}
static int read_call_agent(struct bsc_fd *fd)
{
struct sockaddr_in addr;
socklen_t slen = sizeof(addr);
struct msgb *resp;
struct mgcp_ss7 *cfg;
struct write_queue *queue;
cfg = (struct mgcp_ss7 *) fd->data;
queue = container_of(fd, struct write_queue, bfd);
/* read one less so we can use it as a \0 */
int rc = recvfrom(fd->fd, cfg->mgcp_msg->data, cfg->mgcp_msg->data_len - 1, 0,
(struct sockaddr *) &addr, &slen);
if (rc < 0) {
perror("Gateway failed to read");
return -1;
} else if (slen > sizeof(addr)) {
fprintf(stderr, "Gateway received message from outerspace: %d %d\n",
slen, sizeof(addr));
return -1;
}
/* handle message now */
cfg->mgcp_msg->l2h = msgb_put(cfg->mgcp_msg, rc);
resp = mgcp_handle_message(cfg->cfg, cfg->mgcp_msg);
msgb_reset(cfg->mgcp_msg);
if (resp)
enqueue_msg(queue, &addr, resp);
return 0;
}
static int create_socket(struct mgcp_ss7 *cfg)
{
int on;
struct sockaddr_in addr;
struct bsc_fd *bfd;
bfd = &cfg->mgcp_fd.bfd;
cfg->mgcp_fd.read_cb = read_call_agent;
cfg->mgcp_fd.write_cb = write_call_agent;
bfd->when = BSC_FD_READ;
bfd->fd = socket(AF_INET, SOCK_DGRAM, 0);
if (bfd->fd < 0) {
perror("Gateway failed to listen");
return -1;
}
on = 1;
setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(cfg->cfg->source_port);
addr.sin_addr.s_addr = INADDR_ANY;
if (bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
perror("Gateway failed to bind");
close(bfd->fd);
return -1;
}
bfd->data = cfg;
cfg->mgcp_msg = msgb_alloc(4096, "mgcp-msg");
if (!cfg->mgcp_msg) {
fprintf(stderr, "Gateway memory error.\n");
close(bfd->fd);
return -1;
}
talloc_steal(cfg, cfg->mgcp_msg);
if (bsc_register_fd(bfd) != 0) {
DEBUGP(DMGCP, "Failed to register the fd\n");
close(bfd->fd);
return -1;
}
return 0;
}
static void mgcp_ss7_endp_free(struct mgcp_ss7 *ss7, int endp)
{
mgcp_ss7_exec(ss7, MGCP_SS7_DELETE, endp, 0);
}
static int reset_cb(struct mgcp_config *cfg)
{
mgcp_ss7_reset((struct mgcp_ss7 *) cfg->data);
return 0;
}
static int realloc_cb(struct mgcp_config *cfg, int endp)
{
mgcp_ss7_endp_free((struct mgcp_ss7 *) cfg->data, endp);
return 0;
}
static void mgcp_ss7_set_default(struct mgcp_config *cfg)
{
/* do not attempt to allocate call ids */
cfg->early_bind = 1;
talloc_free(cfg->audio_name);
cfg->audio_payload = 126;
cfg->audio_name = talloc_strdup(cfg, "AMR/8000");
}
static struct mgcp_ss7 *mgcp_ss7_init(struct mgcp_config *cfg)
{
int i;
struct mgcp_ss7 *conf = talloc_zero(NULL, struct mgcp_ss7);
if (!conf)
return NULL;
write_queue_init(&conf->mgcp_fd, 30);
conf->cfg = cfg;
/* take over the ownership */
talloc_steal(conf, conf->cfg);
conf->cfg->policy_cb = mgcp_ss7_policy;
conf->cfg->reset_cb = reset_cb;
conf->cfg->realloc_cb = realloc_cb;
conf->cfg->data = conf;
if (mgcp_endpoints_allocate(conf->cfg) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to allocate endpoints: %d\n",
cfg->number_endpoints);
talloc_free(conf);
return NULL;
}
if (create_socket(conf) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to create socket.\n");
talloc_free(conf);
return NULL;
}
conf->mgw_end = _talloc_zero_array(conf, sizeof(struct mgcp_ss7_endpoint),
conf->cfg->number_endpoints, "mgw endpoints");
if (!conf->mgw_end) {
LOGP(DMGCP, LOGL_ERROR, "Failed to allocate MGW endpoint array.\n");
talloc_free(conf);
return NULL;
}
for (i = 0; i < conf->cfg->number_endpoints; ++i) {
struct mgcp_endpoint *endp;
int rtp_port;
/* initialize the MGW part */
conf->mgw_end[i].port = UINT_MAX;
/* allocate the ports */
endp = &conf->cfg->endpoints[i];
rtp_port = rtp_calculate_port(ENDPOINT_NUMBER(endp), conf->cfg->rtp_base_port);
if (mgcp_bind_rtp_port(endp, rtp_port) != 0) {
LOGP(DMGCP, LOGL_ERROR, "Failed to bind: %d\n", rtp_port);
mgcp_ss7_free(conf);
return NULL;
}
}
conf->cmd_queue = thread_notifier_alloc();
if (!conf->cmd_queue) {
LOGP(DMGCP, LOGL_ERROR, "Failed to allocate the command queue.\n");
talloc_free(conf);
return NULL;
}
#ifndef NO_UNIPORTE
conf->cmd_queue->no_write = 1;
pthread_create(&conf->thread, NULL, start_uniporte, conf);
#endif
return conf;
}
void mgcp_ss7_free(struct mgcp_ss7 *mgcp)
{
/* close everything */
mgcp_ss7_reset(mgcp);
mgcp_ss7_exec(mgcp, MGCP_SS7_SHUTDOWN, 0, 0);
close(mgcp->mgcp_fd.bfd.fd);
bsc_unregister_fd(&mgcp->mgcp_fd.bfd);
bsc_del_timer(&mgcp->poll_timer);
talloc_free(mgcp);
}
void mgcp_ss7_reset(struct mgcp_ss7 *mgcp)
{
int i;
if (!mgcp)
return;
LOGP(DMGCP, LOGL_INFO, "Resetting all endpoints.\n");
/* free UniPorted and MGCP data */
for (i = 0; i < mgcp->cfg->number_endpoints; ++i) {
mgcp_ss7_endp_free(mgcp, i);
mgcp_free_endp(&mgcp->cfg->endpoints[i]);
}
}
static void print_help()
{
printf(" Some useful help...\n");
printf(" -h This help text.\n");
printf(" -c --config=CFG. The configuration file.\n");
printf(" -e --exit-on-failure. Exit the app on MGW failure.\n");
}
static void print_usage()
{
printf("Usage: mgcp_mgw\n");
}
static void handle_options(int argc, char **argv)
{
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"config", 1, 0, 'c'},
{"exit", 0, 0, 'e'},
{0, 0, 0, 0},
};
c = getopt_long(argc, argv, "hc:e",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage();
print_help();
exit(0);
case 'c':
config_file = optarg;
break;
case 'e':
exit_on_failure = 1;
break;
default:
fprintf(stderr, "Unknown option.\n");
break;
}
}
}
int main(int argc, char **argv)
{
struct mgcp_ss7 *mgcp;
int rc;
log_init(&log_info);
stderr_target = log_target_create_stderr();
log_add_target(stderr_target);
/* enable filters */
log_set_all_filter(stderr_target, 1);
log_set_category_filter(stderr_target, DINP, 1, LOGL_INFO);
log_set_category_filter(stderr_target, DSCCP, 1, LOGL_INFO);
log_set_category_filter(stderr_target, DMSC, 1, LOGL_INFO);
log_set_category_filter(stderr_target, DMGCP, 1, LOGL_INFO);
log_set_print_timestamp(stderr_target, 1);
log_set_use_color(stderr_target, 0);
handle_options(argc, argv);
signal(SIGPIPE, SIG_IGN);
mgcp_mgw_vty_init();
g_cfg = mgcp_config_alloc();
if (!g_cfg) {
LOGP(DMGCP, LOGL_ERROR, "Failed to allocate mgcp config.\n");
return -1;
}
mgcp_ss7_set_default(g_cfg);
mgcp_vty_set_config(g_cfg);
if (vty_read_config_file(config_file, NULL) < 0) {
fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file);
return -1;
}
rc = telnet_init(NULL, NULL, 4243);
if (rc < 0)
return rc;
printf("Creating MGCP MGW with endpoints: %d ip: %s mgw: %s rtp-base: %d payload: %d\n",
g_cfg->number_endpoints, g_cfg->local_ip, g_cfg->bts_ip,
g_cfg->rtp_base_port, g_cfg->audio_payload);
mgcp = mgcp_ss7_init(g_cfg);
if (!mgcp) {
fprintf(stderr, "Failed to create MGCP\n");
exit(-1);
}
while (1) {
bsc_select_main(0);
}
return 0;
}
static struct vty_app_info vty_info = {
.name = "mgcp_ss7",
.version = "0.0.1",
.go_parent_cb = NULL,
};
void logging_vty_add_cmds(void);
DEFUN(cfg_mgcp_vad, cfg_mgcp_vad_cmd,
"vad (enabled|disabled)",
"Enable the Voice Activity Detection\n"
"Enable\n" "Disable\n")
{
if (argv[0][0] == 'e')
s_vad_enabled = 1;
else
s_vad_enabled = 0;
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_realloc, cfg_mgcp_realloc_cmd,
"force-realloc (0|1)",
"Force the reallocation of an endpoint\n"
"Disable\n" "Enable\n")
{
g_cfg->force_realloc = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_inp_dig_gain, cfg_mgcp_inp_dig_gain_cmd,
"input-digital-gain <0-62>",
"Static Digital Input Gain\n"
"Gain value")
{
s_digital_inp_gain = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_out_dig_gain, cfg_mgcp_out_dig_gain_cmd,
"outut-digital-gain <0-62>",
"Static Digital Output Gain\n"
"Gain value")
{
s_digital_out_gain = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_upstr_agc, cfg_mgcp_upstr_agc_cmd,
"upstream-automatic-gain (0|1)",
"Enable automatic gain control on upstream\n"
"Disable\n" "Enabled\n")
{
s_upstr_agc_enbl = argv[0][0] == '1';
return CMD_SUCCESS;
}
DEFUN(cfg_mgc_upstr_adp, cfg_mgcp_upstr_adp_cmd,
"upstream-adaptiton-rate <1-128>",
"Set the adaption rate in (dB/sec) * 10\n"
"Range\n")
{
s_upstr_adp_rate = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_upstr_max_gain, cfg_mgcp_upstr_max_gain_cmd,
"upstream-max-applied-gain <0-49>",
"Maximum applied gain from -31db to 18db\n"
"Gain level\n")
{
s_upstr_max_gain = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_upstr_target, cfg_mgcp_upstr_target_cmd,
"upstream-target-level <6-37>",
"Set the desired level in db\n"
"Desired lievel\n")
{
s_upstr_target_lvl = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_dwnstr_agc, cfg_mgcp_dwnstr_agc_cmd,
"downstream-automatic-gain (0|1)",
"Enable automatic gain control on downstream\n"
"Disable\n" "Enabled\n")
{
s_dwnstr_agc_enbl = argv[0][0] == '1';
return CMD_SUCCESS;
}
DEFUN(cfg_mgc_dwnstr_adp, cfg_mgcp_dwnstr_adp_cmd,
"downstream-adaptation-rate <1-128>",
"Set the adaption rate in (dB/sec) * 10\n"
"Range\n")
{
s_dwnstr_adp_rate = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_dwnstr_max_gain, cfg_mgcp_dwnstr_max_gain_cmd,
"downstream-max-applied-gain <0-49>",
"Maximum applied gain from -31db to 18db\n"
"Gain level\n")
{
s_dwnstr_max_gain = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_mgcp_dwnstr_target, cfg_mgcp_dwnstr_target_cmd,
"downstream-target-level <6-37>",
"Set the desired level in db\n"
"Desired lievel\n")
{
s_dwnstr_target_lvl = atoi(argv[0]);
return CMD_SUCCESS;
}
void mgcp_write_extra(struct vty *vty)
{
vty_out(vty, " force-realloc %d%s", g_cfg->force_realloc, VTY_NEWLINE);
vty_out(vty, " vad %s%s", s_vad_enabled ? "enabled" : "disabled", VTY_NEWLINE);
vty_out(vty, " input-digital-gain %d%s", s_digital_inp_gain, VTY_NEWLINE);
vty_out(vty, " output-digital-gain %d%s", s_digital_out_gain, VTY_NEWLINE);
vty_out(vty, " upstream-automatic-gain %d%s", s_upstr_agc_enbl, VTY_NEWLINE);
vty_out(vty, " upstream-adaptation-rate %d%s", s_upstr_adp_rate, VTY_NEWLINE);
vty_out(vty, " upstream-max-applied-gain %d%s", s_upstr_max_gain, VTY_NEWLINE);
vty_out(vty, " upstream-target-level %d%s", s_upstr_target_lvl, VTY_NEWLINE);
vty_out(vty, " downstream-automatic-gain %d%s", s_dwnstr_agc_enbl, VTY_NEWLINE);
vty_out(vty, " downstream-adaptation-rate %d%s", s_dwnstr_adp_rate, VTY_NEWLINE);
vty_out(vty, " downstream-max-applied-gain %d%s", s_dwnstr_max_gain, VTY_NEWLINE);
vty_out(vty, " downstream-target-level %d%s", s_dwnstr_target_lvl, VTY_NEWLINE);
}
static void mgcp_mgw_vty_init(void)
{
cmd_init(1);
vty_init(&vty_info);
logging_vty_add_cmds();
mgcp_vty_init();
install_element(MGCP_NODE, &cfg_mgcp_vad_cmd);
install_element(MGCP_NODE, &cfg_mgcp_realloc_cmd);
install_element(MGCP_NODE, &cfg_mgcp_inp_dig_gain_cmd);
install_element(MGCP_NODE, &cfg_mgcp_out_dig_gain_cmd);
install_element(MGCP_NODE, &cfg_mgcp_upstr_agc_cmd);
install_element(MGCP_NODE, &cfg_mgcp_upstr_adp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_upstr_max_gain_cmd);
install_element(MGCP_NODE, &cfg_mgcp_upstr_target_cmd);
install_element(MGCP_NODE, &cfg_mgcp_dwnstr_agc_cmd);
install_element(MGCP_NODE, &cfg_mgcp_dwnstr_adp_cmd);
install_element(MGCP_NODE, &cfg_mgcp_dwnstr_max_gain_cmd);
install_element(MGCP_NODE, &cfg_mgcp_dwnstr_target_cmd);
}
const char *openbsc_copyright = "";
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