initial checkin of mod_snmp
This commit is contained in:
Daniel Swarbrick
parent
c91b409caa
commit
6e2b1bd328
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@ -0,0 +1,110 @@
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FREESWITCH-MIB DEFINITIONS ::= BEGIN
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IMPORTS
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OBJECT-TYPE, MODULE-IDENTITY,
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Integer32, Gauge32, Counter32, Counter64, TimeTicks,
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enterprises,
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FROM SNMPv2-SMI
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DisplayString
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FROM SNMPv2-TC
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;
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freeswitch MODULE-IDENTITY
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LAST-UPDATED "201101170000Z"
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ORGANIZATION "www.freeswitch.org"
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CONTACT-INFO
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"Primary contact: Anthony Minessale II
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Email: anthm@freeswitch.org"
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DESCRIPTION
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"This file defines the private FreeSWITCH SNMP MIB extensions."
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REVISION "201101170000Z"
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DESCRIPTION
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"First draft by daniel.swarbrick@seventhsignal.de"
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::= { enterprises 27880 }
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core OBJECT IDENTIFIER ::= { freeswitch 1 }
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mod-sofia OBJECT IDENTIFIER ::= { freeswitch 1001 }
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mod-skinny OBJECT IDENTIFIER ::= { freeswitch 1002 }
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identity OBJECT IDENTIFIER ::= { core 1 }
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versionString OBJECT-TYPE
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SYNTAX DisplayString
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"FreeSWITCH version as a string"
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::= { identity 1 }
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uuid OBJECT-TYPE
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SYNTAX DisplayString
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"FreeSWITCH core UUID"
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::= { identity 2 }
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systemStats OBJECT IDENTIFIER ::= { core 2 }
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uptime OBJECT-TYPE
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SYNTAX TimeTicks
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"FreeSWITCH process uptime in hundredths of seconds"
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::= { systemStats 1 }
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sessionsSinceStartup OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Number of sessions since FreeSWITCH process was started"
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::= { systemStats 2 }
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currentSessions OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Currently active sessions"
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::= { systemStats 3 }
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maxSessions OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Maximum permissible active sessions"
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::= { systemStats 4 }
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currentCalls OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Currently active calls"
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::= { systemStats 5 }
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sessionsPerSecond OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Current sessions per second"
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::= { systemStats 6 }
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maxSessionsPerSecond OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Maximum permissible sessions per second"
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::= { systemStats 7 }
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END
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include ../../../../build/modmake.rules
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LOCAL_CFLAGS=-I `net-snmp-config --cflags`
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LOCAL_LDFLAGS=`net-snmp-config --agent-libs`
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LOCAL_OBJS=subagent.o
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local_depend: $(LOCAL_OBJS)
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@ -0,0 +1,138 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2011, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Daniel Swarbrick <daniel.swarbrick@seventhsignal.de>
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* Stefan Knoblich <s.knoblich@axsentis.de>
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*
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* mod_snmp.c -- SNMP AgentX Subagent Module
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*
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*/
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#include <switch.h>
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <net-snmp/agent/net-snmp-agent-includes.h>
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#include "subagent.h"
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static struct {
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switch_memory_pool_t *pool;
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int shutdown;
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} globals;
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SWITCH_MODULE_LOAD_FUNCTION(mod_snmp_load);
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_snmp_shutdown);
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SWITCH_MODULE_RUNTIME_FUNCTION(mod_snmp_runtime);
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SWITCH_MODULE_DEFINITION(mod_snmp, mod_snmp_load, mod_snmp_shutdown, mod_snmp_runtime);
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static int snmp_callback_log(int major, int minor, void *serverarg, void *clientarg)
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{
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struct snmp_log_message *slm = (struct snmp_log_message *) serverarg;
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switch_log_printf(SWITCH_CHANNEL_LOG, slm->priority, "%s", slm->msg);
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return SNMP_ERR_NOERROR;
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}
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static switch_state_handler_table_t state_handlers = {
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/*.on_init */ NULL,
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/*.on_routing */ NULL,
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/*.on_execute */ NULL,
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/*.on_hangup */ NULL,
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/*.on_exchange_media */ NULL,
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/*.on_soft_execute */ NULL,
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/*.on_consume_media */ NULL,
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/*.on_hibernate */ NULL,
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/*.on_reset */ NULL,
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/*.on_park */ NULL,
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/*.on_reporting */ NULL
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};
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static switch_status_t load_config(switch_memory_pool_t *pool)
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{
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switch_status_t status = SWITCH_STATUS_SUCCESS;
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memset(&globals, 0, sizeof(globals));
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globals.pool = pool;
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return status;
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}
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SWITCH_MODULE_LOAD_FUNCTION(mod_snmp_load)
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{
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switch_status_t status = SWITCH_STATUS_SUCCESS;
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load_config(pool);
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switch_core_add_state_handler(&state_handlers);
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*module_interface = switch_loadable_module_create_module_interface(pool, modname);
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/* Register callback function so we get Net-SNMP logging handled by FreeSWITCH */
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snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_LOGGING, snmp_callback_log, NULL);
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snmp_enable_calllog();
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netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);
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netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE, 1);
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init_agent("mod_snmp");
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init_subagent();
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init_snmp("mod_snmp");
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return status;
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}
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SWITCH_MODULE_RUNTIME_FUNCTION(mod_snmp_runtime)
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{
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/* block on select() */
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agent_check_and_process(1);
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_snmp_shutdown)
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{
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globals.shutdown = 1;
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switch_core_remove_state_handler(&state_handlers);
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snmp_shutdown("mod_snmp");
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return SWITCH_STATUS_SUCCESS;
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}
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
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*/
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@ -0,0 +1,189 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2011, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Daniel Swarbrick <daniel.swarbrick@seventhsignal.de>
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* Stefan Knoblich <s.knoblich@axsentis.de>
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*
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* mod_snmp.c -- SNMP AgentX Subagent Module
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*
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*/
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#include <switch.h>
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#include <switch_version.h>
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <net-snmp/agent/net-snmp-agent-includes.h>
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#include "subagent.h"
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static oid identity_oid[] = { 1,3,6,1,4,1,27880,1,1 };
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static oid systemStats_oid[] = { 1,3,6,1,4,1,27880,1,2 };
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/* identity sub-IDs - these must match MIB */
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enum {
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versionString_oid = 1,
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uuid_oid
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};
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/* systemStats sub-IDs - these must match MIB */
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enum {
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uptime_oid = 1,
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sessionsSinceStartup_oid,
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currentSessions_oid,
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maxSessions_oid,
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currentCalls_oid,
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sessionsPerSecond_oid,
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maxSessionsPerSecond_oid
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};
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void init_subagent(void)
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{
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DEBUGMSGTL(("init_nstAgentSubagentObject", "Initializing\n"));
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netsnmp_register_handler(netsnmp_create_handler_registration("identity", handle_identity, identity_oid, OID_LENGTH(identity_oid), HANDLER_CAN_RONLY));
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netsnmp_register_handler(netsnmp_create_handler_registration("systemStats", handle_systemStats, systemStats_oid, OID_LENGTH(systemStats_oid), HANDLER_CAN_RONLY));
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}
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int handle_identity(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)
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{
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static char const version[] = SWITCH_VERSION_FULL;
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char uuid[40] = "";
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netsnmp_request_info *request = NULL;
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oid subid;
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switch(reqinfo->mode) {
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case MODE_GET:
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for (request = requests; request; request = request->next) {
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subid = request->requestvb->name[OID_LENGTH(systemStats_oid)];
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switch (subid) {
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case versionString_oid:
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snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR, (u_char *) &version, strlen(version));
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break;
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case uuid_oid:
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strncpy(uuid, switch_core_get_uuid(), sizeof(uuid));
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snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR, (u_char *) &uuid, strlen(uuid));
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break;
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default:
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snmp_log(LOG_WARNING, "Unregistered OID-suffix requested (%d)\n", (int) subid);
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netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
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}
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}
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break;
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case MODE_GETNEXT:
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snmp_log(LOG_ERR, "MODE_GETNEXT not supported (yet)\n");
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break;
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default:
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/* we should never get here, so this is a really bad error */
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snmp_log(LOG_ERR, "Unknown mode (%d) in handle_versionString\n", reqinfo->mode );
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return SNMP_ERR_GENERR;
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}
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return SNMP_ERR_NOERROR;
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}
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int handle_systemStats(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)
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{
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netsnmp_request_info *request = NULL;
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oid subid;
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switch_time_t uptime;
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uint32_t int_val;
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switch(reqinfo->mode) {
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case MODE_GET:
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for (request = requests; request; request = request->next) {
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subid = request->requestvb->name[OID_LENGTH(systemStats_oid)];
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switch (subid) {
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case uptime_oid:
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uptime = switch_core_uptime() / 10000;
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snmp_set_var_typed_value(requests->requestvb, ASN_TIMETICKS, (u_char *) &uptime, sizeof(uptime));
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break;
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case sessionsSinceStartup_oid:
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int_val = switch_core_session_id() - 1;
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snmp_set_var_typed_value(requests->requestvb, ASN_COUNTER, (u_char *) &int_val, sizeof(int_val));
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break;
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case currentSessions_oid:
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int_val = switch_core_session_count();
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snmp_set_var_typed_value(requests->requestvb, ASN_GAUGE, (u_char *) &int_val, sizeof(int_val));
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break;
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case maxSessions_oid:
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switch_core_session_ctl(SCSC_MAX_SESSIONS, &int_val);;
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snmp_set_var_typed_value(requests->requestvb, ASN_GAUGE, (u_char *) &int_val, sizeof(int_val));
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break;
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case currentCalls_oid:
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/*
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* This is zero for now, since there is no convenient way to get total call
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* count (not to be confused with session count), without touching the
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* database.
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*/
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int_val = 0;
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snmp_set_var_typed_value(requests->requestvb, ASN_GAUGE, (u_char *) &int_val, sizeof(int_val));
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break;
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case sessionsPerSecond_oid:
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switch_core_session_ctl(SCSC_LAST_SPS, &int_val);
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snmp_set_var_typed_value(requests->requestvb, ASN_GAUGE, (u_char *) &int_val, sizeof(int_val));
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break;
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case maxSessionsPerSecond_oid:
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switch_core_session_ctl(SCSC_SPS, &int_val);
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snmp_set_var_typed_value(requests->requestvb, ASN_GAUGE, (u_char *) &int_val, sizeof(int_val));
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break;
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default:
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snmp_log(LOG_WARNING, "Unregistered OID-suffix requested (%d)\n", (int) subid);
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netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
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}
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}
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break;
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case MODE_GETNEXT:
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snmp_log(LOG_ERR, "MODE_GETNEXT not supported (yet)\n");
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break;
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default:
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/* we should never get here, so this is a really bad error */
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snmp_log(LOG_ERR, "Unknown mode (%d) in handle_systemStats\n", reqinfo->mode);
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return SNMP_ERR_GENERR;
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}
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return SNMP_ERR_NOERROR;
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}
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
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*/
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@ -0,0 +1,8 @@
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#ifndef subagent_H
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#define subagent_H
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void init_subagent(void);
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Netsnmp_Node_Handler handle_identity;
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Netsnmp_Node_Handler handle_systemStats;
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#endif /* subagent_H */
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