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centreon-plugins
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Update nrpe.pm for management of NRPE v4 (#3027)

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OlivierKuziemko 2021-08-09 08:45:49 +02:00 committed by GitHub
parent 3f341c1e0e
commit 747210d928
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1 changed files with 49 additions and 2 deletions
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centreon/plugins/nrpe.pm
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@ -66,7 +66,7 @@ sub check_options {
my ($self, %options) = @_;
$options{option_results}->{nrpe_version} =~ s/^v//;
if ($options{option_results}->{nrpe_version} !~ /2|3/) {
if ($options{option_results}->{nrpe_version} !~ /2|3|4/) {
$self->{output}->add_option_msg(short_msg => "Unknown NRPE version.");
$self->{output}->option_exit();
}
@ -126,12 +126,59 @@ sub assemble {
my $packed;
if ($options{version} eq 2) {
$packed = $self->assemble_v2(%options);
} elsif ($options{version} eq 4) {
$packed = $self->assemble_v4(%options);
} else {
$packed = $self->assemble_v3(%options);
}
return $packed;
}
sub assemble_v4 {
my ($self, %options) = @_;
my $buffer = $options{check};
my $len = length($buffer);
# In order for crc32 calculation to be correct we need to pad the buffer with \0
# It seems that the buffer must be in multiples of 1024 so to achive this we use
# some integer arithmetic to find the next multiple of 1024 that can hold our message
my $pack_len;
{
use integer;
$pack_len = (($len / 1024) * 1024) + 1024;
}
$buffer = pack("Z$pack_len", $buffer);
$len = length($buffer) + 4;
my $unpacked;
$unpacked->{alignment} = 0;
$unpacked->{buffer_length} = $len;
$unpacked->{buffer} = $buffer;
$unpacked->{crc32_value} = "\x00\x00\x00\x00";
$unpacked->{packet_type} = defined($options{type}) ? $options{type} : 1;
$unpacked->{packet_version} = 4;
$unpacked->{result_code} = defined($options{result_code}) ? $options{result_code} : 2324;
$self->{c}->parse(<<PACKET_STRUCT);
struct Packet{
unsigned short packet_version;
unsigned short packet_type;
unsigned int crc32_value;
unsigned short result_code;
unsigned short alignment;
int buffer_length;
char buffer[$len];
};
PACKET_STRUCT
$self->{c}->tag('Packet.buffer', Format => 'String');
my $packed = $self->{c}->pack('Packet', $unpacked);
$unpacked->{crc32_value} = crc32($packed);
$packed = $self->{c}->pack('Packet', $unpacked);
return $packed;
}
sub assemble_v3 {
my ($self, %options) = @_;
@ -379,7 +426,7 @@ NRPE class
=item B<--nrpe-version>
Version: 2 for NRPE v2 (Default), 3 for NRPE v3.
Version: 2 for NRPE v2 (Default), 3 for NRPE v3, 4 for NRPE v4.
=item B<--nrpe-port>