mgcp: Add code that will attempt to configure the TDM switch
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/*
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* (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2011 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 <net-snmp/net-snmp-config.h>
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#include <net-snmp/utilities.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <cellmgr_debug.h>
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#define HSCOMM "PTI-NexusWare-HSCMCONN-MIB::"
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#define PTMC_STREAM_A_RX0 0
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#define PTMC_STREAM_A_TX0 128
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#define PTMC_STREAM_A_RX1 1024
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#define PTMC_STREAM_A_TX1 1152
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static netsnmp_session g_session, *g_ss;
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static void add_pdu_var(netsnmp_pdu *pdu, const char *mib_name,
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int id1, int id2, const char *value)
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{
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oid oid_name[MAX_OID_LEN];
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size_t name_length;
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char buf[4096];
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buf[4095] = '\0';
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snprintf(buf, sizeof(buf)-1, "%s.%d.%d", mib_name, id1, id2);
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name_length = MAX_OID_LEN;
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if (snmp_parse_oid(buf, oid_name, &name_length) == NULL) {
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snmp_perror(buf);
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return;
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}
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if (snmp_add_var(pdu, oid_name, name_length, '=', value)) {
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snmp_perror(buf);
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return;
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}
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}
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static int rx_port_get(int port)
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{
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if (port > 60)
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return PTMC_STREAM_A_RX1 + port;
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else
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return PTMC_STREAM_A_RX0 + port;
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}
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static int tx_port_get(int port)
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{
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if (port > 60)
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return PTMC_STREAM_A_TX1 + port;
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else
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return PTMC_STREAM_A_TX0 + port;
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}
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int mgcp_snmp_init()
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{
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init_snmp("mgcp_mgw");
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snmp_sess_init(&g_session);
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g_session.version = SNMP_VERSION_1;
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g_session.community = (unsigned char *) "private";
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g_session.community_len = strlen((const char *) g_session.community);
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g_session.peername = "127.0.0.1";
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g_ss = snmp_open(&g_session);
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if (!g_ss) {
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snmp_perror("create failure");
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snmp_log(LOG_ERR, "Could not connect to the remote.\n");
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LOGP(DINP, LOGL_ERROR, "Failed to open a SNMP session.\n");
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return -1;
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}
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return 0;
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}
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int mgcp_snmp_connect(int port, int trunk, int timeslot)
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{
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int status;
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netsnmp_pdu *response;
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netsnmp_pdu *pdu;
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int _rx_port, _tx_port;
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char tx_port[10];
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char trunk_name[13], tslot_name[13];
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if (!g_ss)
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return -1;
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/* have the trunk/timeslot as value */
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snprintf(trunk_name, sizeof(trunk_name), "%d", trunk);
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snprintf(tslot_name, sizeof(tslot_name), "%d", timeslot);
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/* rx port, tx side for the port */
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_rx_port = rx_port_get(port);
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_tx_port = tx_port_get(port);
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snprintf(tx_port, sizeof(tx_port), "%d", _tx_port);
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pdu = snmp_pdu_create(SNMP_MSG_SET);
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if (!pdu) {
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LOGP(DINP, LOGL_ERROR, "Failed to allocate PDU.\n");
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return -1;
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}
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/* This connects the TX side to the given trunk/timeslot */
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamTrunk",
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trunk, timeslot, "hscmconnStreamPtmc");
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamPtmc",
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trunk, timeslot, "1");
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamTrunk",
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trunk, timeslot, tx_port);
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamTrunk",
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trunk, timeslot, "0");
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamTrunk",
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trunk, timeslot, "1");
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add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamTrunk",
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trunk, timeslot, "false");
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/* This connect the RX side to the given trunk/timeslot */
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamPtmc",
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1, _rx_port, "hscmconnStreamTrunk");
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamPtmc",
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1, _rx_port, trunk_name);
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamPtmc",
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1, _rx_port, tslot_name);
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamPtmc",
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1, _rx_port, "0");
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add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamPtmc",
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1, _rx_port, "1");
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add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamPtmc",
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1, _rx_port, "false");
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status = snmp_synch_response(g_ss, pdu, &response);
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if (status == STAT_ERROR) {
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snmp_sess_perror("set failed", g_ss);
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} else if (status == STAT_TIMEOUT) {
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fprintf(stderr, "Timeout for SNMP.\n");
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}
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if (response)
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snmp_free_pdu(response);
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return 0;
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}
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