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-rw-r--r--src/mgcp_hw.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/src/mgcp_hw.c b/src/mgcp_hw.c
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--- /dev/null
+++ b/src/mgcp_hw.c
@@ -0,0 +1,168 @@
+/*
+ * (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2010-2011 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 <net-snmp/net-snmp-config.h>
+#include <net-snmp/utilities.h>
+#include <net-snmp/net-snmp-includes.h>
+
+#include <cellmgr_debug.h>
+
+#define HSCOMM "PTI-NexusWare-HSCMCONN-MIB::"
+
+#define PTMC_STREAM_A_RX0 0
+#define PTMC_STREAM_A_TX0 128
+#define PTMC_STREAM_A_RX1 1024
+#define PTMC_STREAM_A_TX1 1152
+
+
+static netsnmp_session g_session, *g_ss;
+
+static void add_pdu_var(netsnmp_pdu *pdu, const char *mib_name,
+ int id1, int id2, const char *value)
+{
+ oid oid_name[MAX_OID_LEN];
+ size_t name_length;
+
+ char buf[4096];
+ buf[4095] = '\0';
+ snprintf(buf, sizeof(buf)-1, "%s.%d.%d", mib_name, id1, id2);
+
+ name_length = MAX_OID_LEN;
+ if (snmp_parse_oid(buf, oid_name, &name_length) == NULL) {
+ snmp_perror(buf);
+ return;
+ }
+
+ if (snmp_add_var(pdu, oid_name, name_length, 'i', value)) {
+ snmp_perror(buf);
+ return;
+ }
+}
+
+static int rx_port_get(int port)
+{
+ if (port > 60)
+ return PTMC_STREAM_A_RX1 + port;
+ else
+ return PTMC_STREAM_A_RX0 + port;
+}
+
+static int tx_port_get(int port)
+{
+ if (port > 60)
+ return PTMC_STREAM_A_TX1 + port;
+ else
+ return PTMC_STREAM_A_TX0 + port;
+}
+
+int mgcp_snmp_init()
+{
+ init_snmp("mgcp_mgw");
+ snmp_sess_init(&g_session);
+ g_session.version = SNMP_VERSION_1;
+ g_session.community = (unsigned char *) "private";
+ g_session.community_len = strlen((const char *) g_session.community);
+
+ g_session.peername = "127.0.0.1";
+ g_ss = snmp_open(&g_session);
+ if (!g_ss) {
+ snmp_perror("create failure");
+ snmp_log(LOG_ERR, "Could not connect to the remote.\n");
+ LOGP(DINP, LOGL_ERROR, "Failed to open a SNMP session.\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int mgcp_snmp_connect(int port, int trunk, int timeslot)
+{
+ int status;
+ netsnmp_pdu *response = NULL;
+ netsnmp_pdu *pdu;
+ int _rx_port, _tx_port;
+ char tx_port[10];
+ char trunk_name[13], tslot_name[13];
+
+ if (!g_ss)
+ return -1;
+
+ /* have the trunk/timeslot as value */
+ snprintf(trunk_name, sizeof(trunk_name), "%d", trunk);
+ snprintf(tslot_name, sizeof(tslot_name), "%d", timeslot);
+
+ /* rx port, tx side for the port */
+ _rx_port = rx_port_get(port);
+ _tx_port = tx_port_get(port);
+ snprintf(tx_port, sizeof(tx_port), "%d", _tx_port);
+
+ pdu = snmp_pdu_create(SNMP_MSG_SET);
+ if (!pdu) {
+ LOGP(DINP, LOGL_ERROR, "Failed to allocate PDU.\n");
+ return -1;
+ }
+
+ /* This connects the TX side to the given trunk/timeslot */
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamTrunk",
+ trunk, timeslot, "hscmconnStreamPtmc");
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamTrunk",
+ trunk, timeslot, "1");
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamTrunk",
+ trunk, timeslot, tx_port);
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamTrunk",
+ trunk, timeslot, "0");
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamTrunk",
+ trunk, timeslot, "1");
+ add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamTrunk",
+ trunk, timeslot, "false");
+
+ /* This connect the RX side to the given trunk/timeslot */
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamPtmc",
+ 1, _rx_port, "hscmconnStreamTrunk");
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamPtmc",
+ 1, _rx_port, trunk_name);
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamPtmc",
+ 1, _rx_port, tslot_name);
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamPtmc",
+ 1, _rx_port, "0");
+ add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamPtmc",
+ 1, _rx_port, "1");
+ add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamPtmc",
+ 1, _rx_port, "false");
+
+
+ status = snmp_synch_response(g_ss, pdu, &response);
+ if (status == STAT_ERROR) {
+ snmp_sess_perror("set failed", g_ss);
+ goto failure;
+ } else if (status == STAT_TIMEOUT) {
+ fprintf(stderr, "Timeout for SNMP.\n");
+ goto failure;
+ }
+
+ if (response)
+ snmp_free_pdu(response);
+ return 0;
+
+failure:
+ if (response)
+ snmp_free_pdu(response);
+ return -1;
+}