779 lines
20 KiB
C
779 lines
20 KiB
C
/* Bloated main routine, refactor */
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/*
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* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010 by On-Waves
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* All Rights Reserved
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <mtp_data.h>
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#include <mtp_level3.h>
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#include <mtp_pcap.h>
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#include <thread.h>
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#include <bss_patch.h>
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#include <bssap_sccp.h>
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#include <bsc_data.h>
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#include <snmp_mtp.h>
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#include <cellmgr_debug.h>
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#include <bsc_sccp.h>
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#include <osmocore/talloc.h>
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#include <osmocom/vty/vty.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <unistd.h>
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <getopt.h>
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#undef PACKAGE_NAME
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#undef PACKAGE_VERSION
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#undef PACKAGE_BUGREPORT
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#undef PACKAGE_TARNAME
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#undef PACKAGE_STRING
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#include <cellmgr_config.h>
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static struct log_target *stderr_target;
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static char *config = "cellmgr_ng.cfg";
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struct bsc_data bsc;
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extern void cell_vty_init(void);
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static void send_reset_ack(struct mtp_link *link, int sls);
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static void bsc_resources_released(struct bsc_data *bsc);
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static void handle_local_sccp(struct mtp_link *link, struct msgb *inp, struct sccp_parse_result *res, int sls);
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static void clear_connections(struct bsc_data *bsc);
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static void send_local_rlsd(struct mtp_link *link, struct sccp_parse_result *res);
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int link_c7_init(struct link_data *data) __attribute__((__weak__));
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int link_c7_init(struct link_data *data)
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{
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return -1;
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}
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/* send a RSIP to the MGCP GW */
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static void mgcp_reset(struct bsc_data *bsc)
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{
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static const char mgcp_reset[] = {
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"RSIP 1 13@mgw MGCP 1.0\r\n"
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};
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mgcp_forward(bsc, (const uint8_t *) mgcp_reset, strlen(mgcp_reset));
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}
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/*
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* methods called from the MTP Level3 part
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*/
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void mtp_link_submit(struct mtp_link *link, struct msgb *msg)
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{
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bsc.link.write(&bsc.link, msg);
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}
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void mtp_link_restart(struct mtp_link *link)
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{
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LOGP(DINP, LOGL_ERROR, "Need to restart the SS7 link.\n");
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bsc.link.reset(&bsc.link);
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}
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void mtp_link_sccp_down(struct mtp_link *link)
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{
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msc_clear_queue(&bsc);
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}
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void mtp_link_forward_sccp(struct mtp_link *link, struct msgb *_msg, int sls)
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{
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int rc;
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struct sccp_parse_result result;
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rc = bss_patch_filter_msg(_msg, &result);
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if (rc == BSS_FILTER_RESET) {
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LOGP(DMSC, LOGL_NOTICE, "Filtering BSS Reset from the BSC\n");
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msc_clear_queue(&bsc);
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mgcp_reset(&bsc);
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send_reset_ack(link, sls);
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return;
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}
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/* special responder */
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if (bsc.msc_link_down) {
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if (rc == BSS_FILTER_RESET_ACK && bsc.reset_count > 0) {
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LOGP(DMSC, LOGL_ERROR, "Received reset ack for closing.\n");
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clear_connections(&bsc);
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bsc_resources_released(&bsc);
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return;
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}
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if (rc != 0 && rc != BSS_FILTER_RLSD && rc != BSS_FILTER_RLC) {
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LOGP(DMSC, LOGL_ERROR, "Ignoring unparsable msg during closedown.\n");
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return;
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}
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return handle_local_sccp(link, _msg, &result, sls);
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}
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/* update the connection state */
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update_con_state(link, rc, &result, _msg, 0, sls);
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if (rc == BSS_FILTER_CLEAR_COMPL) {
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send_local_rlsd(link, &result);
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} else if (rc == BSS_FILTER_RLC || rc == BSS_FILTER_RLSD) {
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LOGP(DMSC, LOGL_DEBUG, "Not forwarding RLC/RLSD to the MSC.\n");
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return;
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}
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msc_send_msg(&bsc, rc, &result, _msg);
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}
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/*
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* handle local message in close down mode
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*/
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static void handle_local_sccp(struct mtp_link *link, struct msgb *inpt, struct sccp_parse_result *result, int sls)
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{
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/* Handle msg with a reject */
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if (inpt->l2h[0] == SCCP_MSG_TYPE_CR) {
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struct sccp_connection_request *cr;
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struct msgb *msg;
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LOGP(DINP, LOGL_NOTICE, "Handling CR localy.\n");
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cr = (struct sccp_connection_request *) inpt->l2h;
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msg = create_sccp_refuse(&cr->source_local_reference);
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if (msg) {
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mtp_link_submit_sccp_data(link, sls, msg->l2h, msgb_l2len(msg));
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msgb_free(msg);
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}
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return;
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} else if (inpt->l2h[0] == SCCP_MSG_TYPE_DT1 && result->data_len >= 3) {
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struct active_sccp_con *con;
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struct sccp_data_form1 *form1;
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struct msgb *msg;
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if (inpt->l3h[0] == 0 && inpt->l3h[2] == BSS_MAP_MSG_CLEAR_COMPLETE) {
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LOGP(DINP, LOGL_DEBUG, "Received Clear Complete. Sending Release.\n");
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form1 = (struct sccp_data_form1 *) inpt->l2h;
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llist_for_each_entry(con, &bsc.sccp_connections, entry) {
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if (memcmp(&form1->destination_local_reference,
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&con->dst_ref, sizeof(con->dst_ref)) == 0) {
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LOGP(DINP, LOGL_DEBUG, "Sending a release request now.\n");
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msg = create_sccp_rlsd(&con->dst_ref, &con->src_ref);
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if (msg) {
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mtp_link_submit_sccp_data(link, con->sls, msg->l2h, msgb_l2len(msg));
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msgb_free(msg);
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}
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return;
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}
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}
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LOGP(DINP, LOGL_ERROR, "Could not find connection for the Clear Command.\n");
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}
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} else if (inpt->l2h[0] == SCCP_MSG_TYPE_UDT && result->data_len >= 3) {
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if (inpt->l3h[0] == 0 && inpt->l3h[2] == BSS_MAP_MSG_RESET_ACKNOWLEDGE) {
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LOGP(DINP, LOGL_NOTICE, "Reset ACK. Connecting to the MSC again.\n");
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bsc_resources_released(&bsc);
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return;
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}
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}
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/* Update the state, maybe the connection was released? */
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update_con_state(link, 0, result, inpt, 0, sls);
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if (llist_empty(&bsc.sccp_connections))
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bsc_resources_released(&bsc);
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return;
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}
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static void clear_connections(struct bsc_data *bsc)
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{
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struct active_sccp_con *tmp, *con;
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llist_for_each_entry_safe(con, tmp, &bsc->sccp_connections, entry) {
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free_con(con);
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}
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bsc->link.clear_queue(&bsc->link);
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}
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void bsc_resources_released(struct bsc_data *bsc)
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{
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bsc_del_timer(&bsc->reset_timeout);
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}
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static void bsc_reset_timeout(void *_data)
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{
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struct msgb *msg;
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struct bsc_data *bsc = (struct bsc_data *) _data;
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/* no reset */
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if (bsc->reset_count > 0) {
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LOGP(DINP, LOGL_ERROR, "The BSC did not answer the GSM08.08 reset. Restart MTP\n");
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mtp_link_stop(bsc->link.the_link);
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clear_connections(bsc);
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bsc->link.reset(&bsc->link);
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bsc_resources_released(bsc);
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return;
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}
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msg = create_reset();
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if (!msg) {
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bsc_schedule_timer(&bsc->reset_timeout, 10, 0);
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return;
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}
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++bsc->reset_count;
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mtp_link_submit_sccp_data(bsc->link.the_link, 13, msg->l2h, msgb_l2len(msg));
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msgb_free(msg);
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bsc_schedule_timer(&bsc->reset_timeout, 20, 0);
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}
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/*
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* We have lost the connection to the MSC. This is tough. We
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* can not just bring down the MTP link as this will disable
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* the BTS radio. We will have to do the following:
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*
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* 1.) Bring down all open SCCP connections. As this will close
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* all radio resources
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* 2.) Bring down all MGCP endpoints
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* 3.) Clear the connection data.
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*
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* To make things worse we need to buffer the BSC messages... atfer
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* everything has been sent we will try to connect to the MSC again.
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*
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* We will have to veriy that all connections are closed properly..
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* this means we need to parse response message. In the case the
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* MTP link is going down while we are sending. We will simply
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* reconnect to the MSC.
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*/
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void release_bsc_resources(struct bsc_data *bsc)
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{
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struct active_sccp_con *tmp;
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struct active_sccp_con *con;
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bsc_del_timer(&bsc->reset_timeout);
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/* 2. clear the MGCP endpoints */
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mgcp_reset(bsc);
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/* 1. send BSSMAP Cleanup.. if we have any connection */
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llist_for_each_entry_safe(con, tmp, &bsc->sccp_connections, entry) {
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if (!con->has_dst_ref) {
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free_con(con);
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continue;
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}
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struct msgb *msg = create_clear_command(&con->src_ref);
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if (!msg)
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continue;
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/* wait for the clear commands */
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mtp_link_submit_sccp_data(bsc->link.the_link, con->sls, msg->l2h, msgb_l2len(msg));
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msgb_free(msg);
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}
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if (llist_empty(&bsc->sccp_connections)) {
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bsc_resources_released(bsc);
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} else {
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/* Send a reset in 20 seconds if we fail to bring everything down */
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bsc->reset_timeout.cb = bsc_reset_timeout;
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bsc->reset_timeout.data = bsc;
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bsc->reset_count = 0;
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bsc_schedule_timer(&bsc->reset_timeout, 10, 0);
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}
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/* clear pending messages from the MSC */
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msc_clear_queue(bsc);
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}
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void bsc_link_down(struct link_data *data)
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{
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int was_up;
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struct mtp_link *link = data->the_link;
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link->available = 0;
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was_up = link->sccp_up;
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mtp_link_stop(link);
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clear_connections(data->bsc);
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mgcp_reset(data->bsc);
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data->clear_queue(data);
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/* clear pending messages from the MSC */
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msc_clear_queue(data->bsc);
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/* If we have an A link send a reset to the MSC */
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msc_send_reset(data->bsc);
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}
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void bsc_link_up(struct link_data *data)
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{
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data->the_link->available = 1;
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/* we have not gone through link down */
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if (data->bsc->msc_link_down) {
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clear_connections(data->bsc);
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bsc_resources_released(data->bsc);
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}
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mtp_link_reset(data->the_link);
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}
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/**
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* update the connection state and helpers below
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*/
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static void send_rlc_to_bsc(unsigned int sls, struct sccp_source_reference *src, struct sccp_source_reference *dst)
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{
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struct msgb *msg;
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msg = create_sccp_rlc(src, dst);
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if (!msg)
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return;
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mtp_link_submit_sccp_data(bsc.link.the_link, sls, msg->l2h, msgb_l2len(msg));
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msgb_free(msg);
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}
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static void handle_rlsd(struct sccp_connection_released *rlsd, int from_msc)
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{
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struct active_sccp_con *con;
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if (from_msc) {
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/* search for a connection, reverse src/dest for MSC */
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con = find_con_by_src_dest_ref(&rlsd->destination_local_reference,
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&rlsd->source_local_reference);
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if (con) {
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LOGP(DINP, LOGL_DEBUG, "RLSD conn still alive: local: 0x%x remote: 0x%x\n",
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sccp_src_ref_to_int(&con->src_ref),
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sccp_src_ref_to_int(&con->dst_ref));
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con->released_from_msc = 1;
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} else {
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/* send RLC */
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LOGP(DINP, LOGL_DEBUG, "Sending RLC for MSC: src: 0x%x dst: 0x%x\n",
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sccp_src_ref_to_int(&rlsd->destination_local_reference),
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sccp_src_ref_to_int(&rlsd->source_local_reference));
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msc_send_rlc(&bsc, &rlsd->destination_local_reference,
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&rlsd->source_local_reference);
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}
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} else {
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unsigned int sls = 13;
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con = find_con_by_src_dest_ref(&rlsd->source_local_reference,
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&rlsd->destination_local_reference);
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if (con) {
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LOGP(DINP, LOGL_DEBUG, "Timeout on BSC. Sending RLC. src: 0x%x\n",
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sccp_src_ref_to_int(&rlsd->source_local_reference));
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if (con->released_from_msc)
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msc_send_rlc(&bsc, &con->src_ref, &con->dst_ref);
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sls = con->sls;
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free_con(con);
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} else {
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LOGP(DINP, LOGL_ERROR, "Timeout on BSC for unknown connection. src: 0x%x\n",
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sccp_src_ref_to_int(&rlsd->source_local_reference));
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}
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/* now send a rlc back to the BSC */
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send_rlc_to_bsc(sls, &rlsd->destination_local_reference, &rlsd->source_local_reference);
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}
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}
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/**
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* Update connection state and also send message.....
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*
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* RLSD from MSC:
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* 1.) We don't find the entry in this case we will send a
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* forged RLC to the MSC and we are done.
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* 2.) We find an entry in this we will need to register that
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* we need to send a RLC and we are done for now.
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* RLSD from BSC:
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* 1.) This is an error we are ignoring for now.
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* RLC from BSC:
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* 1.) We are destroying the connection, we might send a RLC to
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* the MSC if we are waiting for one.
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*/
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void update_con_state(struct mtp_link *link, int rc, struct sccp_parse_result *res, struct msgb *msg, int from_msc, int sls)
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{
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struct active_sccp_con *con;
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struct sccp_connection_request *cr;
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struct sccp_connection_confirm *cc;
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struct sccp_connection_release_complete *rlc;
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struct sccp_connection_refused *cref;
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/* was the header okay? */
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if (rc < 0)
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return;
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/* the header was size checked */
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switch (msg->l2h[0]) {
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case SCCP_MSG_TYPE_CR:
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if (from_msc) {
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LOGP(DMSC, LOGL_ERROR, "CR from MSC is not handled.\n");
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return;
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}
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cr = (struct sccp_connection_request *) msg->l2h;
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con = find_con_by_src_ref(&cr->source_local_reference);
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if (con) {
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LOGP(DINP, LOGL_ERROR, "Duplicate SRC reference for: 0x%x. Reusing\n",
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sccp_src_ref_to_int(&con->src_ref));
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free_con(con);
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}
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con = talloc_zero(NULL, struct active_sccp_con);
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if (!con) {
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LOGP(DINP, LOGL_ERROR, "Failed to allocate\n");
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return;
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}
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con->src_ref = cr->source_local_reference;
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con->sls = sls;
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con->link = link;
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llist_add_tail(&con->entry, &bsc.sccp_connections);
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LOGP(DINP, LOGL_DEBUG, "Adding CR: local ref: 0x%x\n", sccp_src_ref_to_int(&con->src_ref));
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break;
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case SCCP_MSG_TYPE_CC:
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if (!from_msc) {
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LOGP(DINP, LOGL_ERROR, "CC from BSC is not handled.\n");
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return;
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}
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cc = (struct sccp_connection_confirm *) msg->l2h;
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con = find_con_by_src_ref(&cc->destination_local_reference);
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if (con) {
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con->dst_ref = cc->source_local_reference;
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con->has_dst_ref = 1;
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LOGP(DINP, LOGL_DEBUG, "Updating CC: local: 0x%x remote: 0x%x\n",
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sccp_src_ref_to_int(&con->src_ref), sccp_src_ref_to_int(&con->dst_ref));
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return;
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|
}
|
|
|
|
LOGP(DINP, LOGL_ERROR, "CCed connection can not be found: 0x%x\n",
|
|
sccp_src_ref_to_int(&cc->destination_local_reference));
|
|
break;
|
|
case SCCP_MSG_TYPE_CREF:
|
|
if (!from_msc) {
|
|
LOGP(DINP, LOGL_ERROR, "CREF from BSC is not handled.\n");
|
|
return;
|
|
}
|
|
|
|
cref = (struct sccp_connection_refused *) msg->l2h;
|
|
con = find_con_by_src_ref(&cref->destination_local_reference);
|
|
if (con) {
|
|
LOGP(DINP, LOGL_DEBUG, "Releasing local: 0x%x\n", sccp_src_ref_to_int(&con->src_ref));
|
|
free_con(con);
|
|
return;
|
|
}
|
|
|
|
LOGP(DINP, LOGL_ERROR, "CREF from BSC is not handled.\n");
|
|
break;
|
|
case SCCP_MSG_TYPE_RLSD:
|
|
handle_rlsd((struct sccp_connection_released *) msg->l2h, from_msc);
|
|
break;
|
|
case SCCP_MSG_TYPE_RLC:
|
|
if (from_msc) {
|
|
LOGP(DINP, LOGL_ERROR, "RLC from MSC is wrong.\n");
|
|
return;
|
|
}
|
|
|
|
rlc = (struct sccp_connection_release_complete *) msg->l2h;
|
|
con = find_con_by_src_dest_ref(&rlc->source_local_reference,
|
|
&rlc->destination_local_reference);
|
|
if (con) {
|
|
LOGP(DINP, LOGL_DEBUG, "Releasing local: 0x%x\n", sccp_src_ref_to_int(&con->src_ref));
|
|
if (con->released_from_msc)
|
|
msc_send_rlc(&bsc, &con->src_ref, &con->dst_ref);
|
|
free_con(con);
|
|
return;
|
|
}
|
|
|
|
LOGP(DINP, LOGL_ERROR, "RLC can not be found. 0x%x 0x%x\n",
|
|
sccp_src_ref_to_int(&rlc->source_local_reference),
|
|
sccp_src_ref_to_int(&rlc->destination_local_reference));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void send_local_rlsd_for_con(void *data)
|
|
{
|
|
struct msgb *rlsd;
|
|
struct active_sccp_con *con = (struct active_sccp_con *) data;
|
|
|
|
/* try again in three seconds */
|
|
con->rlc_timeout.data = con;
|
|
con->rlc_timeout.cb = send_local_rlsd_for_con;
|
|
bsc_schedule_timer(&con->rlc_timeout, 3, 0);
|
|
|
|
/* we send this to the BSC so we need to switch src and dest */
|
|
rlsd = create_sccp_rlsd(&con->dst_ref, &con->src_ref);
|
|
if (!rlsd)
|
|
return;
|
|
|
|
++con->rls_tries;
|
|
LOGP(DINP, LOGL_DEBUG, "Sending RLSD for 0x%x the %d time.\n",
|
|
sccp_src_ref_to_int(&con->src_ref), con->rls_tries);
|
|
mtp_link_submit_sccp_data(bsc.link.the_link, con->sls, rlsd->l2h, msgb_l2len(rlsd));
|
|
msgb_free(rlsd);
|
|
}
|
|
|
|
static void send_local_rlsd(struct mtp_link *link, struct sccp_parse_result *res)
|
|
{
|
|
struct active_sccp_con *con;
|
|
|
|
LOGP(DINP, LOGL_DEBUG, "Received GSM Clear Complete. Sending RLSD locally.\n");
|
|
|
|
con = find_con_by_dest_ref(res->destination_local_reference);
|
|
if (!con)
|
|
return;
|
|
con->rls_tries = 0;
|
|
send_local_rlsd_for_con(con);
|
|
}
|
|
|
|
static void send_reset_ack(struct mtp_link *link, int sls)
|
|
{
|
|
static const uint8_t reset_ack[] = {
|
|
0x09, 0x00, 0x03, 0x05, 0x7, 0x02, 0x42, 0xfe,
|
|
0x02, 0x42, 0xfe, 0x03,
|
|
0x00, 0x01, 0x31
|
|
};
|
|
|
|
mtp_link_submit_sccp_data(link, sls, reset_ack, sizeof(reset_ack));
|
|
}
|
|
|
|
static void print_usage()
|
|
{
|
|
printf("Usage: cellmgr_ng\n");
|
|
}
|
|
|
|
static void sigint()
|
|
{
|
|
static pthread_mutex_t exit_mutex = PTHREAD_MUTEX_INITIALIZER;
|
|
static int handled = 0;
|
|
|
|
/* failed to lock */
|
|
if (pthread_mutex_trylock(&exit_mutex) != 0)
|
|
return;
|
|
if (handled)
|
|
goto out;
|
|
|
|
printf("Terminating.\n");
|
|
handled = 1;
|
|
if (bsc.setup)
|
|
bsc.link.shutdown(&bsc.link);
|
|
exit(0);
|
|
|
|
out:
|
|
pthread_mutex_unlock(&exit_mutex);
|
|
}
|
|
|
|
static void sigusr2()
|
|
{
|
|
printf("Closing the MSC connection on demand.\n");
|
|
msc_close_connection(&bsc);
|
|
}
|
|
|
|
static void print_help()
|
|
{
|
|
printf(" Some useful help...\n");
|
|
printf(" -h --help this text\n");
|
|
printf(" -c --config=CFG The config file to use.\n");
|
|
printf(" -p --pcap=FILE. Write MSUs to the PCAP file.\n");
|
|
printf(" -c --once. Send the SLTM msg only once.\n");
|
|
printf(" -v --version. Print the version number\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'},
|
|
{"pcap", 1, 0, 'p'},
|
|
{"version", 0, 0, 0},
|
|
{0, 0, 0, 0},
|
|
};
|
|
|
|
c = getopt_long(argc, argv, "hc:p:v",
|
|
long_options, &option_index);
|
|
if (c == -1)
|
|
break;
|
|
|
|
switch (c) {
|
|
case 'h':
|
|
print_usage();
|
|
print_help();
|
|
exit(0);
|
|
case 'p':
|
|
if (bsc.link.pcap_fd >= 0)
|
|
close(bsc.link.pcap_fd);
|
|
bsc.link.pcap_fd = open(optarg, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP| S_IROTH);
|
|
if (bsc.link.pcap_fd < 0) {
|
|
fprintf(stderr, "Failed to open PCAP file.\n");
|
|
exit(0);
|
|
}
|
|
mtp_pcap_write_header(bsc.link.pcap_fd);
|
|
break;
|
|
case 'c':
|
|
config = optarg;
|
|
break;
|
|
case 'v':
|
|
printf("This is %s version %s.\n", PACKAGE, VERSION);
|
|
exit(0);
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unknown option.\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void start_rest(void *start)
|
|
{
|
|
bsc.setup = 1;
|
|
|
|
if (msc_init(&bsc, 1) != 0) {
|
|
fprintf(stderr, "Failed to init MSC part.\n");
|
|
exit(3);
|
|
}
|
|
|
|
bsc.link.start(&bsc.link);
|
|
}
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int rc;
|
|
INIT_LLIST_HEAD(&bsc.sccp_connections);
|
|
|
|
bsc.dpc = 1;
|
|
bsc.opc = 0;
|
|
bsc.sccp_opc = -1;
|
|
bsc.udp_port = 3456;
|
|
bsc.udp_ip = NULL;
|
|
bsc.src_port = 1313;
|
|
bsc.ni_ni = MTP_NI_NATION_NET;
|
|
bsc.ni_spare = 0;
|
|
|
|
mtp_link_init();
|
|
thread_init();
|
|
|
|
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);
|
|
|
|
sccp_set_log_area(DSCCP);
|
|
|
|
bsc.setup = 0;
|
|
bsc.msc_address = "127.0.0.1";
|
|
bsc.link.pcap_fd = -1;
|
|
bsc.link.udp.reset_timeout = 180;
|
|
bsc.ping_time = 20;
|
|
bsc.pong_time = 5;
|
|
bsc.msc_time = 20;
|
|
|
|
handle_options(argc, argv);
|
|
|
|
signal(SIGPIPE, SIG_IGN);
|
|
signal(SIGINT, sigint);
|
|
signal(SIGUSR2, sigusr2);
|
|
srand(time(NULL));
|
|
|
|
cell_vty_init();
|
|
if (vty_read_config_file(config, NULL) < 0) {
|
|
fprintf(stderr, "Failed to read the VTY config.\n");
|
|
return -1;
|
|
}
|
|
|
|
rc = telnet_init(NULL, NULL, 4242);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
bsc.link.the_link = mtp_link_alloc();
|
|
bsc.link.the_link->dpc = bsc.dpc;
|
|
bsc.link.the_link->opc = bsc.opc;
|
|
bsc.link.the_link->sccp_opc = bsc.sccp_opc > -1 ? bsc.sccp_opc : bsc.opc;
|
|
bsc.link.the_link->link = 0;
|
|
bsc.link.the_link->sltm_once = bsc.once;
|
|
bsc.link.the_link->ni = bsc.ni_ni;
|
|
bsc.link.the_link->spare = bsc.ni_spare;
|
|
bsc.link.bsc = &bsc;
|
|
|
|
if (bsc.udp_ip) {
|
|
LOGP(DINP, LOGL_NOTICE, "Using UDP MTP mode.\n");
|
|
|
|
/* setup SNMP first, it is blocking */
|
|
bsc.link.udp.session = snmp_mtp_session_create(bsc.udp_ip);
|
|
if (!bsc.link.udp.session)
|
|
return -1;
|
|
|
|
/* now connect to the transport */
|
|
if (link_udp_init(&bsc.link, bsc.src_port, bsc.udp_ip, bsc.udp_port) != 0)
|
|
return -1;
|
|
|
|
/*
|
|
* We will ask the MTP link to be taken down for two
|
|
* timeouts of the BSC to make sure we are missing the
|
|
* SLTM and it begins a reset. Then we will take it up
|
|
* again and do the usual business.
|
|
*/
|
|
snmp_mtp_deactivate(bsc.link.udp.session);
|
|
bsc.start_timer.cb = start_rest;
|
|
bsc.start_timer.data = &bsc;
|
|
bsc_schedule_timer(&bsc.start_timer, bsc.link.udp.reset_timeout, 0);
|
|
LOGP(DMSC, LOGL_NOTICE, "Making sure SLTM will timeout.\n");
|
|
} else {
|
|
LOGP(DINP, LOGL_NOTICE, "Using NexusWare C7 input.\n");
|
|
if (link_c7_init(&bsc.link) != 0)
|
|
return -1;
|
|
|
|
/* give time to things to start*/
|
|
bsc.start_timer.cb = start_rest;
|
|
bsc.start_timer.data = &bsc;
|
|
bsc_schedule_timer(&bsc.start_timer, 30, 0);
|
|
LOGP(DMSC, LOGL_NOTICE, "Waiting to continue to startup.\n");
|
|
}
|
|
|
|
|
|
while (1) {
|
|
bsc_select_main(0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|