Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 3 | * (C) 2010-2011 by On-Waves |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * This program is free software: you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU Affero General Public License as published by |
| 8 | * the Free Software Foundation, either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU Affero General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Affero General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <net-snmp/net-snmp-config.h> |
| 22 | #include <net-snmp/utilities.h> |
| 23 | #include <net-snmp/net-snmp-includes.h> |
| 24 | |
| 25 | #include <cellmgr_debug.h> |
| 26 | |
| 27 | #define HSCOMM "PTI-NexusWare-HSCMCONN-MIB::" |
| 28 | |
| 29 | #define PTMC_STREAM_A_RX0 0 |
| 30 | #define PTMC_STREAM_A_TX0 128 |
| 31 | #define PTMC_STREAM_A_RX1 1024 |
| 32 | #define PTMC_STREAM_A_TX1 1152 |
| 33 | |
| 34 | |
| 35 | static netsnmp_session g_session, *g_ss; |
| 36 | |
| 37 | static void add_pdu_var(netsnmp_pdu *pdu, const char *mib_name, |
| 38 | int id1, int id2, const char *value) |
| 39 | { |
| 40 | oid oid_name[MAX_OID_LEN]; |
| 41 | size_t name_length; |
| 42 | |
| 43 | char buf[4096]; |
| 44 | buf[4095] = '\0'; |
| 45 | snprintf(buf, sizeof(buf)-1, "%s.%d.%d", mib_name, id1, id2); |
| 46 | |
| 47 | name_length = MAX_OID_LEN; |
| 48 | if (snmp_parse_oid(buf, oid_name, &name_length) == NULL) { |
| 49 | snmp_perror(buf); |
| 50 | return; |
| 51 | } |
| 52 | |
Holger Hans Peter Freyther | e592933 | 2011-03-01 18:00:52 +0100 | [diff] [blame^] | 53 | if (snmp_add_var(pdu, oid_name, name_length, 'i', value)) { |
Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 54 | snmp_perror(buf); |
| 55 | return; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | static int rx_port_get(int port) |
| 60 | { |
| 61 | if (port > 60) |
| 62 | return PTMC_STREAM_A_RX1 + port; |
| 63 | else |
| 64 | return PTMC_STREAM_A_RX0 + port; |
| 65 | } |
| 66 | |
| 67 | static int tx_port_get(int port) |
| 68 | { |
| 69 | if (port > 60) |
| 70 | return PTMC_STREAM_A_TX1 + port; |
| 71 | else |
| 72 | return PTMC_STREAM_A_TX0 + port; |
| 73 | } |
| 74 | |
| 75 | int mgcp_snmp_init() |
| 76 | { |
| 77 | init_snmp("mgcp_mgw"); |
| 78 | snmp_sess_init(&g_session); |
| 79 | g_session.version = SNMP_VERSION_1; |
| 80 | g_session.community = (unsigned char *) "private"; |
| 81 | g_session.community_len = strlen((const char *) g_session.community); |
| 82 | |
| 83 | g_session.peername = "127.0.0.1"; |
| 84 | g_ss = snmp_open(&g_session); |
| 85 | if (!g_ss) { |
| 86 | snmp_perror("create failure"); |
| 87 | snmp_log(LOG_ERR, "Could not connect to the remote.\n"); |
| 88 | LOGP(DINP, LOGL_ERROR, "Failed to open a SNMP session.\n"); |
| 89 | return -1; |
| 90 | } |
| 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
| 95 | int mgcp_snmp_connect(int port, int trunk, int timeslot) |
| 96 | { |
| 97 | int status; |
Holger Hans Peter Freyther | b7299a8 | 2011-03-01 15:48:05 +0100 | [diff] [blame] | 98 | netsnmp_pdu *response = NULL; |
Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 99 | netsnmp_pdu *pdu; |
| 100 | int _rx_port, _tx_port; |
| 101 | char tx_port[10]; |
| 102 | char trunk_name[13], tslot_name[13]; |
| 103 | |
| 104 | if (!g_ss) |
| 105 | return -1; |
| 106 | |
| 107 | /* have the trunk/timeslot as value */ |
| 108 | snprintf(trunk_name, sizeof(trunk_name), "%d", trunk); |
| 109 | snprintf(tslot_name, sizeof(tslot_name), "%d", timeslot); |
| 110 | |
| 111 | /* rx port, tx side for the port */ |
| 112 | _rx_port = rx_port_get(port); |
| 113 | _tx_port = tx_port_get(port); |
| 114 | snprintf(tx_port, sizeof(tx_port), "%d", _tx_port); |
| 115 | |
| 116 | pdu = snmp_pdu_create(SNMP_MSG_SET); |
| 117 | if (!pdu) { |
| 118 | LOGP(DINP, LOGL_ERROR, "Failed to allocate PDU.\n"); |
| 119 | return -1; |
| 120 | } |
| 121 | |
| 122 | /* This connects the TX side to the given trunk/timeslot */ |
| 123 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamTrunk", |
| 124 | trunk, timeslot, "hscmconnStreamPtmc"); |
| 125 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamPtmc", |
| 126 | trunk, timeslot, "1"); |
| 127 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamTrunk", |
| 128 | trunk, timeslot, tx_port); |
| 129 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamTrunk", |
| 130 | trunk, timeslot, "0"); |
| 131 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamTrunk", |
| 132 | trunk, timeslot, "1"); |
| 133 | add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamTrunk", |
| 134 | trunk, timeslot, "false"); |
| 135 | |
| 136 | /* This connect the RX side to the given trunk/timeslot */ |
| 137 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceType.hscmconnStreamPtmc", |
| 138 | 1, _rx_port, "hscmconnStreamTrunk"); |
| 139 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTypeInstance.hscmconnStreamPtmc", |
| 140 | 1, _rx_port, trunk_name); |
| 141 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslot.hscmconnStreamPtmc", |
| 142 | 1, _rx_port, tslot_name); |
| 143 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourcePattern.hscmconnStreamPtmc", |
| 144 | 1, _rx_port, "0"); |
| 145 | add_pdu_var(pdu, HSCOMM "hscmconnNewDataSourceTimeslotCount.hscmconnStreamPtmc", |
| 146 | 1, _rx_port, "1"); |
| 147 | add_pdu_var(pdu, HSCOMM "hscmconnConnectBidirectional.hscmconnStreamPtmc", |
| 148 | 1, _rx_port, "false"); |
| 149 | |
| 150 | |
| 151 | status = snmp_synch_response(g_ss, pdu, &response); |
| 152 | if (status == STAT_ERROR) { |
| 153 | snmp_sess_perror("set failed", g_ss); |
Holger Hans Peter Freyther | b7299a8 | 2011-03-01 15:48:05 +0100 | [diff] [blame] | 154 | goto failure; |
Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 155 | } else if (status == STAT_TIMEOUT) { |
| 156 | fprintf(stderr, "Timeout for SNMP.\n"); |
Holger Hans Peter Freyther | b7299a8 | 2011-03-01 15:48:05 +0100 | [diff] [blame] | 157 | goto failure; |
Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | if (response) |
| 161 | snmp_free_pdu(response); |
| 162 | return 0; |
Holger Hans Peter Freyther | b7299a8 | 2011-03-01 15:48:05 +0100 | [diff] [blame] | 163 | |
| 164 | failure: |
| 165 | if (response) |
| 166 | snmp_free_pdu(response); |
| 167 | return -1; |
Holger Hans Peter Freyther | 796406b | 2011-02-28 17:21:49 +0100 | [diff] [blame] | 168 | } |