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|
#!/usr/bin/perl
#
# Module: vyatta-snmp.pl
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Stig Thormodsrud
# Date: October 2007
# Description: Script to glue vyatta cli to snmp daemon
#
# **** End License ****
#
use lib "/opt/vyatta/share/perl5/";
use VyattaConfig;
use VyattaMisc;
use Getopt::Long;
use strict;
use warnings;
my $mibdir = '/opt/vyatta/share/snmp/mibs';
my $snmp_init = '/opt/vyatta/sbin/snmpd.init';
my $snmp_conf = '/etc/snmp/snmpd.conf';
sub snmp_init {
#
# This requires the iptables user module libipt_rlsnmpstats.so.
# to get the stats from "show snmp". For now we are disabling
# this feature.
#
# system("iptables -A INPUT -m rlsnmpstats");
# system("iptables -A OUTPUT -m rlsnmpstats");
}
sub snmp_restart {
system("$snmp_init restart");
}
sub snmp_stop {
system("$snmp_init stop");
}
sub snmp_get_constants {
my $output;
my $date = `date`;
chomp $date;
$output = "#\n# autogenerated by vyatta-snmp.pl on $date\n#\n";
$output .= "trap2sink localhost vyatta 51510\n";
$output .= "sysServices 14\n";
return $output;
}
sub snmp_get_values {
my $output = '';
my $config = new VyattaConfig;
$config->setLevel("protocols snmp community");
my @communities = $config->listNodes();
foreach my $community (@communities) {
my $authorization = $config->returnValue("$community authorization");
my @clients = $config->returnValues("$community client");
my @networks = $config->returnValues("$community network");
if (scalar(@clients) == 0 and scalar(@networks) == 0){
if (defined $authorization and $authorization eq "rw") {
$output .= "rwcommunity $community\n";
} else {
$output .= "rocommunity $community\n";
}
} else {
if (scalar(@clients) != 0){
foreach my $client (@clients){
if (defined $authorization and $authorization eq "rw") {
$output .= "rwcommunity $community $client\n";
} else {
$output .= "rocommunity $community $client\n";
}
}
}
if (scalar(@networks) != 0){
foreach my $network (@networks){
if (defined $authorization and $authorization eq "rw") {
$output .= "rwcommunity $community $network\n";
} else {
$output .= "rocommunity $community $network\n";
}
}
}
}
}
$config->setLevel("protocols snmp");
my $contact = $config->returnValue("contact");
if (defined $contact) {
$output .= "syscontact \"$contact\" \n";
}
my $description = $config->returnValue("description");
if (defined $description) {
$output .= "sysdescr \"$description\" \n";
}
my $location = $config->returnValue("location");
if (defined $location) {
$output .= "syslocation \"$location\" \n";
}
my @trap_targets = $config->returnValues("trap-target");
foreach my $trap_target (@trap_targets) {
$output .= "trapsink $trap_target\n";
}
return $output;
}
sub snmp_write_file {
my ($config) = @_;
open(my $fh, '>', $snmp_conf) || die "Couldn't open $snmp_conf - $!";
print $fh $config;
close $fh;
}
#
# main
#
my $init_snmp;
my $update_snmp;
my $stop_snmp;
GetOptions("init-snmp!" => \$init_snmp,
"update-snmp!" => \$update_snmp,
"stop-snmp!" => \$stop_snmp);
if (defined $init_snmp) {
snmp_init();
}
if (defined $update_snmp) {
my $config;
$config = snmp_get_constants();
$config .= snmp_get_values();
snmp_write_file($config);
snmp_restart();
}
if (defined $stop_snmp) {
snmp_stop();
}
exit 0;
# end of file
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