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asterisk/res/snmp/agent.c
Terry Wilson 04da92c379 Replace direct access to channel name with accessor functions 
There are many benefits to making the ast_channel an opaque handle, from
increasing maintainability to presenting ways to kill masquerades. This patch
kicks things off by taking things a field at a time, renaming the field to
'__do_not_use_${fieldname}' and then writing setters/getters and converting the
existing code to using them. When all fields are done, we can move ast_channel
to a C file from channel.h and lop off the '__do_not_use_'.

This patch sets up main/channel_interal_api.c to be the only file that actually
accesses the ast_channel's fields directly. The intent would be for any API
functions in channel.c to use the accessor functions. No more monkeying around
with channel internals. We should use our own APIs.

The interesting changes in this patch are the addition of
channel_internal_api.c, the moving of the AST_DATA stuff from channel.c to
channel_internal_api.c (note: the AST_DATA stuff will have to be reworked to
use accessor functions when ast_channel is really opaque), and some re-working
of the way channel iterators/callbacks are handled so as to avoid creating fake
ast_channels on the stack to pass in matching data by directly accessing fields
(since "name" is a stringfield and the fake channel doesn't init the
stringfields, you can't use the ast_channel_name_set() function). I went with
ast_channel_name(chan) for a getter, and ast_channel_name_set(chan, name) for a
setter.

The majority of the grunt-work for this change was done by writing a semantic
patch using Coccinelle ( http://coccinelle.lip6.fr/ ).

Review: https://reviewboard.asterisk.org/r/1655/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@350223 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2012-01-09 22:15:50 +00:00

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/*
* Copyright (C) 2006 Voop as
* Thorsten Lockert <tholo@voop.as>
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief SNMP Agent / SubAgent support for Asterisk
*
* \author Thorsten Lockert <tholo@voop.as>
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
/*
* There is some collision collision between netsmp and asterisk names,
* causing build under AST_DEVMODE to fail.
*
* The following PACKAGE_* macros are one place.
* Also netsnmp has an improper check for HAVE_DMALLOC_H, using
* #if HAVE_DMALLOC_H instead of #ifdef HAVE_DMALLOC_H
* As a countermeasure we define it to 0, however this will fail
* when the proper check is implemented.
*/
#ifdef PACKAGE_NAME
#undef PACKAGE_NAME
#endif
#ifdef PACKAGE_BUGREPORT
#undef PACKAGE_BUGREPORT
#endif
#ifdef PACKAGE_STRING
#undef PACKAGE_STRING
#endif
#ifdef PACKAGE_TARNAME
#undef PACKAGE_TARNAME
#endif
#ifdef PACKAGE_VERSION
#undef PACKAGE_VERSION
#endif
#ifndef HAVE_DMALLOC_H
#define HAVE_DMALLOC_H 0 /* XXX we shouldn't do this */
#endif
#if defined(__OpenBSD__)
/*
* OpenBSD uses old "legacy" cc which has a rather pedantic builtin preprocessor.
* Using a macro which is not #defined throws an error.
*/
#define __NetBSD_Version__ 0
#endif
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "asterisk/paths.h" /* need ast_config_AST_SOCKET */
#include "asterisk/channel.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/indications.h"
#include "asterisk/ast_version.h"
#include "asterisk/pbx.h"
/* Colission between Net-SNMP and Asterisk */
#define unload_module ast_unload_module
#include "asterisk/module.h"
#undef unload_module
#include "agent.h"
/* Helper functions in Net-SNMP, header file not installed by default */
int header_generic(struct variable *, oid *, size_t *, int, size_t *, WriteMethod **);
int header_simple_table(struct variable *, oid *, size_t *, int, size_t *, WriteMethod **, int);
int register_sysORTable(oid *, size_t, const char *);
int unregister_sysORTable(oid *, size_t);
/* Forward declaration */
static void init_asterisk_mib(void);
/*
* Anchor for all the Asterisk MIB values
*/
static oid asterisk_oid[] = { 1, 3, 6, 1, 4, 1, 22736, 1 };
/*
* MIB values -- these correspond to values in the Asterisk MIB,
* and MUST be kept in sync with the MIB for things to work as
* expected.
*/
#define ASTVERSION 1
#define ASTVERSTRING 1
#define ASTVERTAG 2
#define ASTCONFIGURATION 2
#define ASTCONFUPTIME 1
#define ASTCONFRELOADTIME 2
#define ASTCONFPID 3
#define ASTCONFSOCKET 4
#define ASTCONFACTIVECALLS 5
#define ASTCONFPROCESSEDCALLS 6
#define ASTMODULES 3
#define ASTMODCOUNT 1
#define ASTINDICATIONS 4
#define ASTINDCOUNT 1
#define ASTINDCURRENT 2
#define ASTINDTABLE 3
#define ASTINDINDEX 1
#define ASTINDCOUNTRY 2
#define ASTINDALIAS 3
#define ASTINDDESCRIPTION 4
#define ASTCHANNELS 5
#define ASTCHANCOUNT 1
#define ASTCHANTABLE 2
#define ASTCHANINDEX 1
#define ASTCHANNAME 2
#define ASTCHANLANGUAGE 3
#define ASTCHANTYPE 4
#define ASTCHANMUSICCLASS 5
#define ASTCHANBRIDGE 6
#define ASTCHANMASQ 7
#define ASTCHANMASQR 8
#define ASTCHANWHENHANGUP 9
#define ASTCHANAPP 10
#define ASTCHANDATA 11
#define ASTCHANCONTEXT 12
#define ASTCHANMACROCONTEXT 13
#define ASTCHANMACROEXTEN 14
#define ASTCHANMACROPRI 15
#define ASTCHANEXTEN 16
#define ASTCHANPRI 17
#define ASTCHANACCOUNTCODE 18
#define ASTCHANFORWARDTO 19
#define ASTCHANUNIQUEID 20
#define ASTCHANCALLGROUP 21
#define ASTCHANPICKUPGROUP 22
#define ASTCHANSTATE 23
#define ASTCHANMUTED 24
#define ASTCHANRINGS 25
#define ASTCHANCIDDNID 26
#define ASTCHANCIDNUM 27
#define ASTCHANCIDNAME 28
#define ASTCHANCIDANI 29
#define ASTCHANCIDRDNIS 30
#define ASTCHANCIDPRES 31
#define ASTCHANCIDANI2 32
#define ASTCHANCIDTON 33
#define ASTCHANCIDTNS 34
#define ASTCHANAMAFLAGS 35
#define ASTCHANADSI 36
#define ASTCHANTONEZONE 37
#define ASTCHANHANGUPCAUSE 38
#define ASTCHANVARIABLES 39
#define ASTCHANFLAGS 40
#define ASTCHANTRANSFERCAP 41
#define ASTCHANTYPECOUNT 3
#define ASTCHANTYPETABLE 4
#define ASTCHANTYPEINDEX 1
#define ASTCHANTYPENAME 2
#define ASTCHANTYPEDESC 3
#define ASTCHANTYPEDEVSTATE 4
#define ASTCHANTYPEINDICATIONS 5
#define ASTCHANTYPETRANSFER 6
#define ASTCHANTYPECHANNELS 7
#define ASTCHANSCALARS 5
#define ASTCHANBRIDGECOUNT 1
void *agent_thread(void *arg)
{
ast_verb(2, "Starting %sAgent\n", res_snmp_agentx_subagent ? "Sub" : "");
snmp_enable_stderrlog();
if (res_snmp_agentx_subagent)
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE,
1);
init_agent("asterisk");
init_asterisk_mib();
init_snmp("asterisk");
if (!res_snmp_agentx_subagent)
init_master_agent();
while (res_snmp_dont_stop)
agent_check_and_process(1);
snmp_shutdown("asterisk");
ast_verb(2, "Terminating %sAgent\n", res_snmp_agentx_subagent ? "Sub" : "");
return NULL;
}
static u_char *
ast_var_channels(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
if (vp->magic != ASTCHANCOUNT)
return NULL;
long_ret = ast_active_channels();
return (u_char *)&long_ret;
}
static u_char *ast_var_channels_table(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
static u_char bits_ret[2];
static char string_ret[256];
struct ast_channel *chan, *bridge;
struct timeval tval;
u_char *ret = NULL;
int i, bit;
struct ast_str *out = ast_str_alloca(2048);
struct ast_channel_iterator *iter;
if (header_simple_table(vp, name, length, exact, var_len, write_method, ast_active_channels()))
return NULL;
i = name[*length - 1] - 1;
if (!(iter = ast_channel_iterator_all_new())) {
return NULL;
}
while ((chan = ast_channel_iterator_next(iter)) && i) {
ast_channel_unref(chan);
i--;
}
iter = ast_channel_iterator_destroy(iter);
if (chan == NULL) {
return NULL;
}
*var_len = sizeof(long_ret);
ast_channel_lock(chan);
switch (vp->magic) {
case ASTCHANINDEX:
long_ret = name[*length - 1];
ret = (u_char *)&long_ret;
break;
case ASTCHANNAME:
if (!ast_strlen_zero(ast_channel_name(chan))) {
strncpy(string_ret, ast_channel_name(chan), sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANLANGUAGE:
if (!ast_strlen_zero(chan->language)) {
strncpy(string_ret, chan->language, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANTYPE:
strncpy(string_ret, chan->tech->type, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANMUSICCLASS:
if (!ast_strlen_zero(chan->musicclass)) {
strncpy(string_ret, chan->musicclass, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANBRIDGE:
if ((bridge = ast_bridged_channel(chan)) != NULL) {
strncpy(string_ret, ast_channel_name(bridge), sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANMASQ:
if (chan->masq && !ast_strlen_zero(ast_channel_name(chan->masq))) {
strncpy(string_ret, ast_channel_name(chan->masq), sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANMASQR:
if (chan->masqr && !ast_strlen_zero(ast_channel_name(chan->masqr))) {
strncpy(string_ret, ast_channel_name(chan->masqr), sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANWHENHANGUP:
if (!ast_tvzero(chan->whentohangup)) {
gettimeofday(&tval, NULL);
long_ret = difftime(chan->whentohangup.tv_sec, tval.tv_sec) * 100 - tval.tv_usec / 10000;
ret= (u_char *)&long_ret;
}
break;
case ASTCHANAPP:
if (chan->appl) {
strncpy(string_ret, chan->appl, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANDATA:
if (chan->data) {
strncpy(string_ret, chan->data, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCONTEXT:
strncpy(string_ret, chan->context, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANMACROCONTEXT:
strncpy(string_ret, chan->macrocontext, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANMACROEXTEN:
strncpy(string_ret, chan->macroexten, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANMACROPRI:
long_ret = chan->macropriority;
ret = (u_char *)&long_ret;
break;
case ASTCHANEXTEN:
strncpy(string_ret, chan->exten, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANPRI:
long_ret = chan->priority;
ret = (u_char *)&long_ret;
break;
case ASTCHANACCOUNTCODE:
if (!ast_strlen_zero(chan->accountcode)) {
strncpy(string_ret, chan->accountcode, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANFORWARDTO:
if (!ast_strlen_zero(chan->call_forward)) {
strncpy(string_ret, chan->call_forward, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANUNIQUEID:
strncpy(string_ret, chan->uniqueid, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
break;
case ASTCHANCALLGROUP:
long_ret = chan->callgroup;
ret = (u_char *)&long_ret;
break;
case ASTCHANPICKUPGROUP:
long_ret = chan->pickupgroup;
ret = (u_char *)&long_ret;
break;
case ASTCHANSTATE:
long_ret = chan->_state & 0xffff;
ret = (u_char *)&long_ret;
break;
case ASTCHANMUTED:
long_ret = chan->_state & AST_STATE_MUTE ? 1 : 2;
ret = (u_char *)&long_ret;
break;
case ASTCHANRINGS:
long_ret = chan->rings;
ret = (u_char *)&long_ret;
break;
case ASTCHANCIDDNID:
if (chan->dialed.number.str) {
strncpy(string_ret, chan->dialed.number.str, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCIDNUM:
if (chan->caller.id.number.valid && chan->caller.id.number.str) {
strncpy(string_ret, chan->caller.id.number.str, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCIDNAME:
if (chan->caller.id.name.valid && chan->caller.id.name.str) {
strncpy(string_ret, chan->caller.id.name.str, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCIDANI:
if (chan->caller.ani.number.valid && chan->caller.ani.number.str) {
strncpy(string_ret, chan->caller.ani.number.str, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCIDRDNIS:
if (chan->redirecting.from.number.valid && chan->redirecting.from.number.str) {
strncpy(string_ret, chan->redirecting.from.number.str, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANCIDPRES:
long_ret = ast_party_id_presentation(&chan->caller.id);
ret = (u_char *)&long_ret;
break;
case ASTCHANCIDANI2:
long_ret = chan->caller.ani2;
ret = (u_char *)&long_ret;
break;
case ASTCHANCIDTON:
long_ret = chan->caller.id.number.plan;
ret = (u_char *)&long_ret;
break;
case ASTCHANCIDTNS:
long_ret = chan->dialed.transit_network_select;
ret = (u_char *)&long_ret;
break;
case ASTCHANAMAFLAGS:
long_ret = chan->amaflags;
ret = (u_char *)&long_ret;
break;
case ASTCHANADSI:
long_ret = chan->adsicpe;
ret = (u_char *)&long_ret;
break;
case ASTCHANTONEZONE:
if (chan->zone) {
strncpy(string_ret, chan->zone->country, sizeof(string_ret));
string_ret[sizeof(string_ret) - 1] = '\0';
*var_len = strlen(string_ret);
ret = (u_char *)string_ret;
}
break;
case ASTCHANHANGUPCAUSE:
long_ret = chan->hangupcause;
ret = (u_char *)&long_ret;
break;
case ASTCHANVARIABLES:
if (pbx_builtin_serialize_variables(chan, &out)) {
*var_len = ast_str_strlen(out);
ret = (u_char *)ast_str_buffer(out);
}
break;
case ASTCHANFLAGS:
bits_ret[0] = 0;
for (bit = 0; bit < 8; bit++)
bits_ret[0] |= ((chan->flags & (1 << bit)) >> bit) << (7 - bit);
bits_ret[1] = 0;
for (bit = 0; bit < 8; bit++)
bits_ret[1] |= (((chan->flags >> 8) & (1 << bit)) >> bit) << (7 - bit);
*var_len = 2;
ret = bits_ret;
break;
case ASTCHANTRANSFERCAP:
long_ret = chan->transfercapability;
ret = (u_char *)&long_ret;
default:
break;
}
ast_channel_unlock(chan);
chan = ast_channel_unref(chan);
return ret;
}
static u_char *ast_var_channel_types(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
struct ast_variable *channel_types, *next;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
if (vp->magic != ASTCHANTYPECOUNT)
return NULL;
for (long_ret = 0, channel_types = next = ast_channeltype_list(); next; next = next->next)
long_ret++;
ast_variables_destroy(channel_types);
return (u_char *)&long_ret;
}
static u_char *ast_var_channel_types_table(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
const struct ast_channel_tech *tech = NULL;
struct ast_variable *channel_types, *next;
static unsigned long long_ret;
struct ast_channel *chan;
u_long i;
if (header_simple_table(vp, name, length, exact, var_len, write_method, -1))
return NULL;
channel_types = ast_channeltype_list();
for (i = 1, next = channel_types; next && i != name[*length - 1]; next = next->next, i++)
;
if (next != NULL)
tech = ast_get_channel_tech(next->name);
ast_variables_destroy(channel_types);
if (next == NULL || tech == NULL)
return NULL;
switch (vp->magic) {
case ASTCHANTYPEINDEX:
long_ret = name[*length - 1];
return (u_char *)&long_ret;
case ASTCHANTYPENAME:
*var_len = strlen(tech->type);
return (u_char *)tech->type;
case ASTCHANTYPEDESC:
*var_len = strlen(tech->description);
return (u_char *)tech->description;
case ASTCHANTYPEDEVSTATE:
long_ret = tech->devicestate ? 1 : 2;
return (u_char *)&long_ret;
case ASTCHANTYPEINDICATIONS:
long_ret = tech->indicate ? 1 : 2;
return (u_char *)&long_ret;
case ASTCHANTYPETRANSFER:
long_ret = tech->transfer ? 1 : 2;
return (u_char *)&long_ret;
case ASTCHANTYPECHANNELS:
{
struct ast_channel_iterator *iter;
long_ret = 0;
if (!(iter = ast_channel_iterator_all_new())) {
return NULL;
}
while ((chan = ast_channel_iterator_next(iter))) {
if (chan->tech == tech) {
long_ret++;
}
chan = ast_channel_unref(chan);
}
ast_channel_iterator_destroy(iter);
return (u_char *)&long_ret;
}
default:
break;
}
return NULL;
}
static u_char *ast_var_channel_bridge(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
struct ast_channel *chan = NULL;
struct ast_channel_iterator *iter;
long_ret = 0;
if (header_generic(vp, name, length, exact, var_len, write_method)) {
return NULL;
}
if (!(iter = ast_channel_iterator_all_new())) {
return NULL;
}
while ((chan = ast_channel_iterator_next(iter))) {
ast_channel_lock(chan);
if (ast_bridged_channel(chan)) {
long_ret++;
}
ast_channel_unlock(chan);
chan = ast_channel_unref(chan);
}
ast_channel_iterator_destroy(iter);
*var_len = sizeof(long_ret);
return (vp->magic == ASTCHANBRIDGECOUNT) ? (u_char *) &long_ret : NULL;
}
static u_char *ast_var_Config(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
struct timeval tval;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
switch (vp->magic) {
case ASTCONFUPTIME:
gettimeofday(&tval, NULL);
long_ret = difftime(tval.tv_sec, ast_startuptime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_startuptime.tv_usec / 10000;
return (u_char *)&long_ret;
case ASTCONFRELOADTIME:
gettimeofday(&tval, NULL);
if (ast_lastreloadtime.tv_sec)
long_ret = difftime(tval.tv_sec, ast_lastreloadtime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_lastreloadtime.tv_usec / 10000;
else
long_ret = difftime(tval.tv_sec, ast_startuptime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_startuptime.tv_usec / 10000;
return (u_char *)&long_ret;
case ASTCONFPID:
long_ret = getpid();
return (u_char *)&long_ret;
case ASTCONFSOCKET:
*var_len = strlen(ast_config_AST_SOCKET);
return (u_char *)ast_config_AST_SOCKET;
case ASTCONFACTIVECALLS:
long_ret = ast_active_calls();
return (u_char *)&long_ret;
case ASTCONFPROCESSEDCALLS:
long_ret = ast_processed_calls();
return (u_char *)&long_ret;
default:
break;
}
return NULL;
}
static u_char *ast_var_indications(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
static char ret_buf[128];
struct ast_tone_zone *tz = NULL;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
switch (vp->magic) {
case ASTINDCOUNT:
{
struct ao2_iterator i;
long_ret = 0;
i = ast_tone_zone_iterator_init();
while ((tz = ao2_iterator_next(&i))) {
tz = ast_tone_zone_unref(tz);
long_ret++;
}
return (u_char *) &long_ret;
}
case ASTINDCURRENT:
tz = ast_get_indication_zone(NULL);
if (tz) {
ast_copy_string(ret_buf, tz->country, sizeof(ret_buf));
*var_len = strlen(ret_buf);
tz = ast_tone_zone_unref(tz);
return (u_char *) ret_buf;
}
*var_len = 0;
return NULL;
default:
break;
}
return NULL;
}
static u_char *ast_var_indications_table(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
static char ret_buf[256];
struct ast_tone_zone *tz = NULL;
int i;
struct ao2_iterator iter;
if (header_simple_table(vp, name, length, exact, var_len, write_method, -1)) {
return NULL;
}
i = name[*length - 1] - 1;
iter = ast_tone_zone_iterator_init();
while ((tz = ao2_iterator_next(&iter)) && i) {
tz = ast_tone_zone_unref(tz);
i--;
}
if (tz == NULL) {
return NULL;
}
switch (vp->magic) {
case ASTINDINDEX:
long_ret = name[*length - 1];
return (u_char *)&long_ret;
case ASTINDCOUNTRY:
ast_copy_string(ret_buf, tz->country, sizeof(ret_buf));
tz = ast_tone_zone_unref(tz);
*var_len = strlen(ret_buf);
return (u_char *) ret_buf;
case ASTINDALIAS:
/* No longer exists */
return NULL;
case ASTINDDESCRIPTION:
ast_tone_zone_lock(tz);
ast_copy_string(ret_buf, tz->description, sizeof(ret_buf));
ast_tone_zone_unlock(tz);
tz = ast_tone_zone_unref(tz);
*var_len = strlen(ret_buf);
return (u_char *) ret_buf;
default:
break;
}
return NULL;
}
static int countmodule(const char *mod, const char *desc, int use, const char *like)
{
return 1;
}
static u_char *ast_var_Modules(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
if (vp->magic != ASTMODCOUNT)
return NULL;
long_ret = ast_update_module_list(countmodule, NULL);
return (u_char *)&long_ret;
}
static u_char *ast_var_Version(struct variable *vp, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
static unsigned long long_ret;
if (header_generic(vp, name, length, exact, var_len, write_method))
return NULL;
switch (vp->magic) {
case ASTVERSTRING:
{
const char *version = ast_get_version();
*var_len = strlen(version);
return (u_char *)version;
}
case ASTVERTAG:
sscanf(ast_get_version_num(), "%30lu", &long_ret);
return (u_char *)&long_ret;
default:
break;
}
return NULL;
}
static int term_asterisk_mib(int majorID, int minorID, void *serverarg, void *clientarg)
{
unregister_sysORTable(asterisk_oid, OID_LENGTH(asterisk_oid));
return 0;
}
static void init_asterisk_mib(void)
{
static struct variable4 asterisk_vars[] = {
{ASTVERSTRING, ASN_OCTET_STR, RONLY, ast_var_Version, 2, {ASTVERSION, ASTVERSTRING}},
{ASTVERTAG, ASN_UNSIGNED, RONLY, ast_var_Version, 2, {ASTVERSION, ASTVERTAG}},
{ASTCONFUPTIME, ASN_TIMETICKS, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFUPTIME}},
{ASTCONFRELOADTIME, ASN_TIMETICKS, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFRELOADTIME}},
{ASTCONFPID, ASN_INTEGER, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFPID}},
{ASTCONFSOCKET, ASN_OCTET_STR, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFSOCKET}},
{ASTCONFACTIVECALLS, ASN_GAUGE, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFACTIVECALLS}},
{ASTCONFPROCESSEDCALLS, ASN_COUNTER, RONLY, ast_var_Config, 2, {ASTCONFIGURATION, ASTCONFPROCESSEDCALLS}},
{ASTMODCOUNT, ASN_INTEGER, RONLY, ast_var_Modules , 2, {ASTMODULES, ASTMODCOUNT}},
{ASTINDCOUNT, ASN_INTEGER, RONLY, ast_var_indications, 2, {ASTINDICATIONS, ASTINDCOUNT}},
{ASTINDCURRENT, ASN_OCTET_STR, RONLY, ast_var_indications, 2, {ASTINDICATIONS, ASTINDCURRENT}},
{ASTINDINDEX, ASN_INTEGER, RONLY, ast_var_indications_table, 4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDINDEX}},
{ASTINDCOUNTRY, ASN_OCTET_STR, RONLY, ast_var_indications_table, 4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDCOUNTRY}},
{ASTINDALIAS, ASN_OCTET_STR, RONLY, ast_var_indications_table, 4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDALIAS}},
{ASTINDDESCRIPTION, ASN_OCTET_STR, RONLY, ast_var_indications_table, 4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDDESCRIPTION}},
{ASTCHANCOUNT, ASN_GAUGE, RONLY, ast_var_channels, 2, {ASTCHANNELS, ASTCHANCOUNT}},
{ASTCHANINDEX, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANINDEX}},
{ASTCHANNAME, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANNAME}},
{ASTCHANLANGUAGE, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANLANGUAGE}},
{ASTCHANTYPE, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTYPE}},
{ASTCHANMUSICCLASS, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMUSICCLASS}},
{ASTCHANBRIDGE, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANBRIDGE}},
{ASTCHANMASQ, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMASQ}},
{ASTCHANMASQR, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMASQR}},
{ASTCHANWHENHANGUP, ASN_TIMETICKS, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANWHENHANGUP}},
{ASTCHANAPP, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANAPP}},
{ASTCHANDATA, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANDATA}},
{ASTCHANCONTEXT, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCONTEXT}},
{ASTCHANMACROCONTEXT, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROCONTEXT}},
{ASTCHANMACROEXTEN, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROEXTEN}},
{ASTCHANMACROPRI, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROPRI}},
{ASTCHANEXTEN, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANEXTEN}},
{ASTCHANPRI, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANPRI}},
{ASTCHANACCOUNTCODE, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANACCOUNTCODE}},
{ASTCHANFORWARDTO, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANFORWARDTO}},
{ASTCHANUNIQUEID, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANUNIQUEID}},
{ASTCHANCALLGROUP, ASN_UNSIGNED, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCALLGROUP}},
{ASTCHANPICKUPGROUP, ASN_UNSIGNED, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANPICKUPGROUP}},
{ASTCHANSTATE, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANSTATE}},
{ASTCHANMUTED, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMUTED}},
{ASTCHANRINGS, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANRINGS}},
{ASTCHANCIDDNID, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDDNID}},
{ASTCHANCIDNUM, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDNUM}},
{ASTCHANCIDNAME, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDNAME}},
{ASTCHANCIDANI, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDANI}},
{ASTCHANCIDRDNIS, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDRDNIS}},
{ASTCHANCIDPRES, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDPRES}},
{ASTCHANCIDANI2, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDANI2}},
{ASTCHANCIDTON, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDTON}},
{ASTCHANCIDTNS, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDTNS}},
{ASTCHANAMAFLAGS, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANAMAFLAGS}},
{ASTCHANADSI, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANADSI}},
{ASTCHANTONEZONE, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTONEZONE}},
{ASTCHANHANGUPCAUSE, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANHANGUPCAUSE}},
{ASTCHANVARIABLES, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANVARIABLES}},
{ASTCHANFLAGS, ASN_OCTET_STR, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANFLAGS}},
{ASTCHANTRANSFERCAP, ASN_INTEGER, RONLY, ast_var_channels_table, 4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTRANSFERCAP}},
{ASTCHANTYPECOUNT, ASN_INTEGER, RONLY, ast_var_channel_types, 2, {ASTCHANNELS, ASTCHANTYPECOUNT}},
{ASTCHANTYPEINDEX, ASN_INTEGER, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEINDEX}},
{ASTCHANTYPENAME, ASN_OCTET_STR, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPENAME}},
{ASTCHANTYPEDESC, ASN_OCTET_STR, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEDESC}},
{ASTCHANTYPEDEVSTATE, ASN_INTEGER, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEDEVSTATE}},
{ASTCHANTYPEINDICATIONS, ASN_INTEGER, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEINDICATIONS}},
{ASTCHANTYPETRANSFER, ASN_INTEGER, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPETRANSFER}},
{ASTCHANTYPECHANNELS, ASN_GAUGE, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPECHANNELS}},
{ASTCHANBRIDGECOUNT, ASN_GAUGE, RONLY, ast_var_channel_bridge, 3, {ASTCHANNELS, ASTCHANSCALARS, ASTCHANBRIDGECOUNT}},
};
register_sysORTable(asterisk_oid, OID_LENGTH(asterisk_oid),
"ASTERISK-MIB implementation for Asterisk.");
REGISTER_MIB("res_snmp", asterisk_vars, variable4, asterisk_oid);
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_SHUTDOWN,
term_asterisk_mib, NULL);
}
/*
* Local Variables:
* c-basic-offset: 4
* c-file-offsets: ((case-label . 0))
* tab-width: 4
* indent-tabs-mode: t
* End:
*/
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