c98c4faf07
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@5076 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
631 lines
22 KiB
Perl
631 lines
22 KiB
Perl
#!/usr/bin/perl
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# IBM(c) 2107 EPL license http://www.eclipse.org/legal/epl-v10.html
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#(C)IBM Corp
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#modified by jbjohnso@us.ibm.com
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#This module abstracts the session management aspects of IPMI
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package xCAT::IPMI;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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use strict;
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use warnings "all";
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use IO::Socket::INET;
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use IO::Select;
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use Data::Dumper;
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use Digest::MD5 qw/md5/;
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my $ipmi2support = eval {
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require Digest::SHA1;
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Digest::SHA1->import(qw/sha1/);
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require Digest::HMAC_SHA1;
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Digest::HMAC_SHA1->import(qw/hmac_sha1/);
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1;
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};
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my $aessupport;
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if ($ipmi2support) {
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$aessupport = eval {
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require Crypt::Rijndael;
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require Crypt::CBC;
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1;
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};
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}
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sub hexdump {
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foreach (@_) {
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printf "%02X ",$_;
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}
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print "\n";
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}
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my %payload_types = ( #help readability in certain areas of code by specifying payload by name rather than number
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'ipmi' => 0,
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'sol' => 1,
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'rmcpplusopenreq' => 0x10,
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'rmcpplusopenresponse' => 0x11,
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'rakp1' => 0x12,
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'rakp2' => 0x13,
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'rakp3' => 0x14,
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'rakp4' => 0x15,
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);
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my $socket; #global socket for all sessions to share. Fun fun
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my $select = IO::Select->new();
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my %bmc_handlers; #hash from bmc address to a live session management object.
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#only one allowed at a time per bmc
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my %sessions_waiting; #track session objects that may want to retry a packet, value is timestamp to 'wake' object for retransmit
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sub new {
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my $proto = shift;
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my $class = ref $proto || $proto;
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my $self = {};
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bless $self,$class;
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my %args = @_;
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unless ($ipmi2support) {
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$self->{ipmi15only} = 1;
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}
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unless ($args{'bmc'} and defined $args{'userid'} and defined $args{'password'}) {
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return (undef,"bmc, userid, and password must be specified");
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}
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foreach (keys %args) { #store all passed parameters
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$self->{$_} = $args{$_};
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}
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unless ($args{'port'}) { #default to port 623 unless specified
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$self->{'port'} = 623;
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}
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unless ($socket) {
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$socket = IO::Socket::INET->new(Proto => 'udp');
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$select->add($socket);
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}
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$bmc_handlers{inet_ntoa(inet_aton($self->{bmc}))}=$self;
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$self->{peeraddr} = sockaddr_in($self->{port},inet_aton($self->{bmc}));
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$self->{'sequencenumber'} = 0; #init sequence number
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$self->{'sequencenumberbytes'} = [0,0,0,0]; #init sequence number
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$self->{'sessionid'} = [0,0,0,0]; # init session id
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$self->{'authtype'}=0; # first messages will have auth type of 0
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$self->{'ipmiversion'}='1.5'; # send first packet as 1.5
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$self->{'timeout'}=1; #start at a quick timeout, increase on retry
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$self->{'seqlun'}=0; #the IPMB seqlun combo, increment by 4s
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$self->{'logged'}=0;
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return $self;
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}
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sub login {
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my $self = shift;
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my %args = @_;
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if ($self->{logged}) {
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$args{callback}->("SUCCESS",$args{callback_args});
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return;
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}
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$self->{onlogon} = $args{callback};
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$self->{onlogon_args} = $args{callback_args};
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$self->get_channel_auth_cap();
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}
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sub logout {
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my $self = shift;
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my %args = @_;
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$self->{onlogout} = $args{callback};
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$self->{onlogout_args} = $args{callback_args};
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$self->subcmd(netfn=>0x6,command=>0x3c,data=>$self->{sessionid},callback=>\&logged_out,callback_args=>$self);
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}
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sub logged_out {
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my $rsp = shift;
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my $self = shift;
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if ($rsp->{code} == 0) {
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$self->{logged}=0;
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if ( $self->{onlogout}) {
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$self->{onlogout}->("SUCCESS",$self->{onlogout_args});
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}
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} else {
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if ( $self->{onlogout}) {
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$self->{onlogout}->("ERROR:",$self->{onlogout_args});
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}
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}
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}
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sub get_channel_auth_cap { #implement special case for session management command
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my $self = shift;
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if (defined $self->{ipmi15only}) {
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$self->subcmd(netfn=>0x6,command=>0x38,data=>[0x0e,0x04],callback=>\&got_channel_auth_cap,callback_args=>$self);
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} else {
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$self->subcmd(netfn=>0x6,command=>0x38,data=>[0x8e,0x04],callback=>\&got_channel_auth_cap,callback_args=>$self);
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}
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#0x8e, set bit to signify recognition of IPMI 2.0 and request channel 'e', current.
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#0x04, request administrator privilege
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}
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sub get_session_challenge {
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my $self = shift;
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my @user;
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if ($self->{userbytes}) {
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@user = @{$self->{userbytes}};
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} else {
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@user = unpack("C*",$self->{userid});
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for (my $i=scalar @user;$i<16;$i++) {
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$user[$i]=0;
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}
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$self->{userbytes} = \@user;
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}
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$self->subcmd(netfn=>0x6,command=>0x39,data=>[2,@user],callback=>\&got_session_challenge,callback_args=>$self); #we only support MD5, we would have errored out if not supported
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}
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sub got_session_challenge {
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my $rsp = shift;
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my $self = shift;
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my @data = @{$rsp->{data}};
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my %localcodes = ( 0x81 => "Invalid user name", 0x82 => "null user disabled" );
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my $code = $rsp->{code}; #just to save me some typing
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if ($code) {
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my $errtxt = sprintf("ERROR: Get challenge failed with %02xh",$code);
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if ($localcodes{$code}) {
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$errtxt .= " ($localcodes{$code})";
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} #TODO: generic codes
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$self->{onlogon}->($errtxt, $self->{onlogon_args});
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return;
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}
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$self->{sessionid} = [splice @data,0,4];
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$self->{authtype}=2; #switch to auth mode
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$self->activate_session(@data);
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}
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sub activate_session {
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my $self = shift;
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my @challenge = @_;
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my @data = (2,4,@challenge,1,0,0,0);
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$self->subcmd(netfn=>0x6,command=>0x3a,data=>\@data,callback=>\&session_activated,callback_args=>$self);
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}
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sub session_activated {
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my $rsp = shift;
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my $self = shift;
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my $code = $rsp->{code}; #just to save me some typing
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my %localcodes = (
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0x81 => "No available login slots",
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0x82 => "No available login slots for ".$self->{userid},
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0x83 => "No slot available as administrator",
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0x84 => "Session sequence number out of range",
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0x85 => "Invalid session ID",
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0x86 => $self->{userid}. " is not allowed to be Administrator or Administrator not allowed over network",
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);
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my @data = @{$rsp->{data}};
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if ($code) {
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my $errtxt = sprintf("ERROR: Unable to log in to BMC due to code %02xh",$code);
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if ($localcodes{$code}) {
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$errtxt .= " ($localcodes{$code})";
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}
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$self->{onlogon}->($errtxt, $self->{onlogon_args});
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}
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$self->{sessionid} = [splice @data,1,4];
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$self->{sequencenumber}=$data[1]+($data[2]<<8)+($data[3]<<16)+($data[4]<<24);
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$self->{sequencenumberbytes} = [splice @data,1,4];
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$self->set_admin_level();
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}
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sub set_admin_level {
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my $self= shift;
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$self->subcmd(netfn=>0x6,command=>0x3b,data=>[4],callback=>\&admin_level_set,callback_args=>$self);
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}
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sub admin_level_set {
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my $rsp = shift;
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my $self = shift;
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my %localcodes = (
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0x80 => $self->{userid}." is not allowed administrator access",
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0x81 => "This user or channel is not allowed administrator access",
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0x82 => "Cannot disable User Level authentication",
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);
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my $code = $rsp->{code};
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if ($code) {
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my $errtxt = sprintf("ERROR: Failed requesting administrator privilege %02xh",$code);
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if ($localcodes{$code}) {
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$errtxt .= " (".$localcodes{$code}.")";
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}
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$self->{onlogon}->($errtxt,$self->{onlogon_args});
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} else {
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$self->{logged}=1;
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$self->{onlogon}->("SUCCESS",$self->{onlogon_args});
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}
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}
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sub got_channel_auth_cap {
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my $rsp = shift;
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my $self = shift;
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my $code = $rsp->{code}; #just to save me some typing
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if ($code == 0xcc and not defined $self->{ipmi15only}) { #ok, most likely a stupid ipmi 1.5 bmc
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$self->{ipmi15only}=1;
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return $self->get_channel_auth_cap();
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}
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if ($code != 0) {
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$self->{onlogon}->("ERROR: Get channel capabilities failed with $code", $self->{onlogon_args});
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return;
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}
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my @data = @{$rsp->{data}};
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$self->{currentchannel} = $data[0];
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if (($data[1] & 0b10000000) and ($data[3] & 0b10)) {
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$self->{ipmiversion} = '2.0';
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}
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if ($self->{ipmiversion} eq '1.5') {
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unless ($data[1] & 0b100) {
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$self->{onlogon}->("ERROR: MD5 is required but not enabeld or available on target BMC",$self->{onlogon_args});
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}
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$self->get_session_challenge();
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} elsif ($self->{ipmiversion} eq '2.0') { #do rmcp+
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$self->open_rmcpplus_request();
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}
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}
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sub open_rmcpplus_request {
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my $self = shift;
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$self->{'authtype'}=6;
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$self->{sidm} = [0x15,0x58,0x25,0x7a];
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my @payload = (0x1f,#message tag, TODO: could be random
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0, #requested privilege role, 0 is highest allowed
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0,0, #reserved
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0x15,0x58,0x25,0x7a, #we only have to sweat one session, so no need to generate
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0,0,0,8,1,0,0,0, #table 13-17, request sha
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1,0,0,8,1,0,0,0); #sha integrity
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if ($aessupport) {
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push @payload,(2,0,0,8,1,0,0,0);
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} else {
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push @payload,(2,0,0,8,0,0,0,0);
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}
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$self->sendpayload(payload=>\@payload,type=>$payload_types{'rmcpplusopenreq'});
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}
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sub checksum {
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my $self = shift;
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my $sum = 0;
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foreach(@_) {
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$sum += $_;
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}
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$sum = ~$sum + 1;
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return($sum&0xff);
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}
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sub subcmd {
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my $self = shift;
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my %args = @_;
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my $rqaddr=0x81; #see section 5.5 of ipmi2 spec, rqsa by old code
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my $rsaddr=0x20; #figrue 13-4, rssa by old code
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my @rnl = ($rsaddr,$args{netfn}<<2);
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my @rest = ($rqaddr,$self->{seqlun},$args{command},@{$args{data}});
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my @payload=(@rnl,$self->checksum(@rnl),@rest,$self->checksum(@rest));
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$self->{seqlun} += 4; #increment by 1<<2
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$self->{seqlun} &= 0xff; #keep it one byte
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$self->{ipmicallback} = $args{callback};
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$self->{ipmicallback_args} = $args{callback_args};
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my $type = $payload_types{'ipmi'};
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if ($self->{integrityalgo}) {
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$type = $type | 0b01000000; #add integrity
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}
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$self->sendpayload(payload=>\@payload,type=>$type);
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}
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sub waitforrsp {
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my $self=shift;
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my $data;
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my $peerport;
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my $peerhost;
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my $timeout; #TODO: code to scan pending objects to find soonest retry deadline
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my $curtime=time();
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foreach (values %sessions_waiting) {
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if (defined $timeout) {
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if ($timeout < $_-$curtime) {
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next;
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}
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}
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$timeout = $_-$curtime;
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}
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if ($select->can_read($timeout)) {
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while ($select->can_read(0)) {
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$peerport = $socket->recv($data,1500,0);
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route_ipmiresponse($peerport,unpack("C*",$data));
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}
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}
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return scalar (keys %sessions_waiting);
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}
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sub route_ipmiresponse {
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my $sockaddr=shift;
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my @rsp = @_;
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unless (
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$rsp[0] == 0x6 and
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$rsp[2] == 0xff and
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$rsp[3] == 0x07) {
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return; #ignore non-ipmi packets
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}
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my $host;
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my $port;
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($port,$host) = sockaddr_in($sockaddr);
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$host = inet_ntoa($host);
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if ($bmc_handlers{$host}) {
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delete $sessions_waiting{$bmc_handlers{$host}};
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$bmc_handlers{$host}->handle_ipmi_packet(@rsp);
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}
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}
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sub handle_ipmi_packet {
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my $self = shift;
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my @rsp = @_;
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if ($rsp[4] == 0 or $rsp[4] == 2) { #IPMI 1.5 (check 0 assumption...)
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my $remsequencenumber=$rsp[5]+$rsp[6]>>8+$rsp[7]>>16+$rsp[8]>>24;
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if ($self->{remotesequencenumber} and $remsequencenumber < $self->{remotesequencenumber} ) {
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return; #ignore malformed sequence number
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}
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$self->{remotesequencenumber}=$remsequencenumber;
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$self->{remotesequencebytes} = [@rsp[5..8]];
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if ($rsp[4] != $self->{authtype}) {
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return 2; # not thinking about packets that do not match our preferred auth type
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}
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unless ($rsp[9] == $self->{sessionid}->[0] and
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$rsp[10] == $self->{sessionid}->[1] and
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$rsp[11] == $self->{sessionid}->[2] and
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$rsp[12] == $self->{sessionid}->[3]) {
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return 1; #this response does not match our current session id, ignore it
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}
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my @authcode=();
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if ($rsp[4] == 2) {
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@authcode = splice @rsp,13,16;
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}
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my @payload = splice (@rsp,14,$rsp[13]);
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if (@authcode) { #authcode is longer than 0, check it
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$self->{checkremotecode}=1;
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my @expectedauthcode = $self->ipmi15authcode(@payload);
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$self->{checkremotecode}=0;
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foreach (0..15) {
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if ($expectedauthcode[$_] != $authcode[$_]) {
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return 3; #invalid authcode
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}
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}
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}
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$self->parse_ipmi_payload(@payload);
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} elsif ($rsp[4] == 6) { #IPMI 2.0
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if (($rsp[5]& 0b00111111) == 0x11) {
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$self->got_rmcp_response(splice @rsp,16);
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} elsif (($rsp[5]& 0b00111111) == 0x13) {
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$self->got_rakp2(splice @rsp,16);
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} elsif (($rsp[5]& 0b00111111) == 0x15) {
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$self->got_rakp4(splice @rsp,16);
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} elsif (($rsp[5]& 0b00111111) == 0x0) {
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my $encrypted;
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if ($rsp[5]&0b10000000) {
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$encrypted=1;
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}
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unless ($rsp[5]&0b01000000) {
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return 3; #we refuse to examine unauthenticated packets
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}
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splice (@rsp,0,4); #ditch the header
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my @authcode = splice(@rsp,-12);
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my @expectedcode = unpack("C*",hmac_sha1(pack("C*",@rsp),$self->{k1}));
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splice (@expectedcode,12);
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foreach (@expectedcode) {
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unless ($_ == shift @authcode) {
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return 3;
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}
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}
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if ($encrypted) {
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#TODO: encryption
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}
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my $psize = $rsp[10]+($rsp[11]<<8);
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my @payload = splice(@rsp,12,$psize);
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$self->parse_ipmi_payload(@payload);
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}
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}
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}
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sub got_rmcp_response {
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my $self = shift;
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my @data = @_;
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my $byte = shift @data;
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unless ($byte == 0x1f) {
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return;
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}
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$byte = shift @data;
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unless ($byte == 0x00) {
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$self->{onlogon}->("ERROR: $byte code on opening RMCP+ session",$self->{onlogon_args}); #TODO: errors
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return;
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}
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$byte = shift @data;
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unless ($byte >= 4) {
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$self->{onlogon}->("ERROR: Cannot acquire sufficient privilege",$self->{onlogon_args});
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return;
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}
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splice @data,0,5;
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$self->{pendingsessionid} = [splice @data,0,4];
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$self->send_rakp1();
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}
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sub send_rakp3 {
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my $self = shift;
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my @payload = (0x1f,0,0,0,@{$self->{pendingsessionid}});
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my @user = unpack("C*",$self->{userid});
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push @payload,unpack("C*",hmac_sha1(pack("C*",@{$self->{remoterandomnumber}},@{$self->{sidm}},4,scalar @user,@user),$self->{password}));
|
|
$self->sendpayload(payload=>\@payload,type=>$payload_types{'rakp3'});
|
|
}
|
|
|
|
sub send_rakp1 {
|
|
my $self = shift;
|
|
my @payload = (0x1f,0,0,0,@{$self->{pendingsessionid}});
|
|
$self->{randomnumber}=[];
|
|
foreach (1..16) {
|
|
my $randomnumber = int(rand(255));
|
|
push @{$self->{randomnumber}},$randomnumber;
|
|
}
|
|
push @payload, @{$self->{randomnumber}};
|
|
push @payload,(4,0,0); # request admin
|
|
my @user = unpack("C*",$self->{userid});
|
|
push @payload,scalar @user;
|
|
push @payload,@user;
|
|
$self->sendpayload(payload=>\@payload,type=>$payload_types{'rakp1'});
|
|
}
|
|
|
|
sub got_rakp4 {
|
|
my $self = shift;
|
|
my @data = @_;
|
|
my $byte = shift @data;
|
|
unless ($byte == 0x1f) {
|
|
return;
|
|
}
|
|
$byte = shift @data;
|
|
unless ($byte == 0x00) {
|
|
$self->{onlogon}->("ERROR: $byte code on opening RMCP+ session",$self->{onlogon_args}); #TODO: errors
|
|
return;
|
|
}
|
|
splice @data,0,6; #discard reserved bytes and session id
|
|
my @expectauthcode = unpack("C*",hmac_sha1(pack("C*",@{$self->{randomnumber}},@{$self->{pendingsessionid}},@{$self->{remoteguid}}),$self->{sik}));
|
|
foreach (@expectauthcode[0..11]) {
|
|
unless ($_ == (shift @data)) {
|
|
$self->{onlogon}->("ERROR: failure in final rakp exchange message",$self->{onlogon_args});
|
|
return;
|
|
}
|
|
}
|
|
$self->{sessionid} = $self->{pendingsessionid};
|
|
$self->{integrityalgo}='sha1';
|
|
$self->{sequencenumber}=1;
|
|
$self->{sequencenumberbytes}=[1,0,0,0];
|
|
$self->set_admin_level();
|
|
}
|
|
|
|
|
|
sub got_rakp2 {
|
|
my $self=shift;
|
|
my @data = @_;
|
|
my $byte = shift @data;
|
|
unless ($byte == 0x1f) {
|
|
return;
|
|
}
|
|
$byte = shift @data;
|
|
unless ($byte == 0x00) {
|
|
$self->{onlogon}->("ERROR: $byte code on opening RMCP+ session",$self->{onlogon_args}); #TODO: errors
|
|
return;
|
|
}
|
|
splice @data,0,6; # throw away reserved bytes, and session id, might need to check
|
|
$self->{remoterandomnumber} = [];
|
|
foreach (1..16) {
|
|
push @{$self->{remoterandomnumber}},(shift @data);
|
|
}
|
|
$self->{remoteguid} = [];
|
|
foreach (1..16) {
|
|
push @{$self->{remoteguid}},(shift @data);
|
|
}
|
|
#Data now represents authcode.. sha1 only..
|
|
my @user = unpack("C*",$self->{userid});
|
|
my $ulength = scalar @user;
|
|
my $hmacdata = pack("C*",(0x15,0x58,0x25,0x7a,@{$self->{pendingsessionid}},@{$self->{randomnumber}},@{$self->{remoterandomnumber}},@{$self->{remoteguid}},4,$ulength,@user));
|
|
my @expectedhash = (unpack("C*",hmac_sha1($hmacdata,$self->{password})));
|
|
foreach (0..(scalar(@expectedhash)-1)) {
|
|
if ($expectedhash[$_] != $data[$_]) {
|
|
$self->{onlogon}->("ERROR: Incorrect password provided",$self->{onlogon_args});
|
|
return;
|
|
}
|
|
}
|
|
$self->{sik} = hmac_sha1(pack("C*",@{$self->{randomnumber}},@{$self->{remoterandomnumber}},4,$ulength,@user),$self->{password});
|
|
$self->{k1} = hmac_sha1(pack("C*",1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1),$self->{sik});
|
|
$self->send_rakp3();
|
|
}
|
|
|
|
sub parse_ipmi_payload {
|
|
my $self=shift;
|
|
my @payload = @_;
|
|
#for now, just trash the headers, this has been validated to death anyway
|
|
splice @payload,0,5; #remove rsaddr/netfs/lun/checksum/rq/seq/lun
|
|
pop @payload; #remove checksum
|
|
my $rsp;
|
|
$rsp->{cmd} = shift @payload;
|
|
$rsp->{code} = shift @payload;
|
|
$rsp->{data} = \@payload;
|
|
$self->{ipmicallback}->($rsp,$self->{ipmicallback_args});
|
|
}
|
|
|
|
sub ipmi15authcode {
|
|
my $self = shift;
|
|
#per table 22-22 'authcode algorithms'
|
|
my @data = @_;
|
|
my @password;
|
|
my @code;
|
|
if ($self->{passbytes}) {
|
|
@password = @{$self->{passbytes}};
|
|
} else {
|
|
@password = unpack("C*",$self->{password});
|
|
for (my $i=scalar @password;$i<16;$i++) {
|
|
$password[$i]=0;
|
|
}
|
|
$self->{passbytes} = \@password;
|
|
}
|
|
my @sequencebytes = @{$self->{sequencenumberbytes}};
|
|
if ($self->{checkremotecode}) {
|
|
@sequencebytes = @{$self->{remotesequencebytes}};
|
|
}
|
|
if ($self->{authtype} == 0) {
|
|
return ();
|
|
} elsif ($self->{authtype} == 2) {
|
|
return unpack("C*",md5(pack("C*",@password,@{$self->{sessionid}},@data,@sequencebytes,@password))); #ignoring single-session channels
|
|
}
|
|
#Not supporting plaintext passwords, that would be asinine
|
|
}
|
|
|
|
#this function accepts a generic ipmi command and applies current session data and handles the 1.5<->2.0 differences
|
|
sub sendpayload {
|
|
#implementation used section 13.6, examle ipmi over lan packet
|
|
my $self = shift;
|
|
my %args = @_;
|
|
my @msg = (0x6,0x0,0xff,0x07); #RMCP header is constant in IPMI
|
|
my $type = $args{type} & 0b00111111;
|
|
$sessions_waiting{$self}=time()+$self->{timeout};
|
|
my @payload = @{$args{payload}};
|
|
push @msg,$self->{'authtype'}; # add authtype byte (will support 0 only for session establishment, 2 for ipmi 1.5, 6 for ipmi2
|
|
if ($self->{'ipmiversion'} eq '2.0') { #TODO: revisit this to see if assembly makes sense
|
|
push @msg, $args{type};
|
|
if ($type == 2) {
|
|
push @msg,@{$self->{'iana'}},0;
|
|
push @msg,@{$self->{'oem_payload_id'}};
|
|
}
|
|
push @msg,@{$self->{sessionid}};
|
|
}
|
|
push @msg,@{$self->{sequencenumberbytes}};
|
|
if ($self->{'ipmiversion'} eq '1.5') { #ipmi 2.0 for some reason swapped session id and seq number location
|
|
push @msg,@{$self->{sessionid}};
|
|
unless ($self->{authtype} == 0) {
|
|
push @msg,$self->ipmi15authcode(@payload);
|
|
}
|
|
push @msg,scalar(@payload);
|
|
push @msg,@payload;
|
|
#TODO: sweat a pad or not? spec isn't crystal clear on the 'legacy pad' and it sounds like it is just for some old crappy nics that have no business in a good server
|
|
} elsif ($self->{'ipmiversion'} eq '2.0') {
|
|
#TODO:
|
|
#push conf header
|
|
my $size = scalar(@payload);
|
|
push @msg,($size&0xff,$size>>8);
|
|
push @msg,@payload;
|
|
#push conf trailer (or had to do it before...
|
|
if ($self->{integrityalgo}) {
|
|
my @integdata = @msg[4..(scalar @msg)-1];
|
|
my $neededpad=((scalar @integdata)+2)%4;
|
|
if ($neededpad) { $neededpad = 4-$neededpad; }
|
|
for (my $i=0;$i<$neededpad;$i++) {
|
|
push @integdata,0xff;
|
|
push @msg,0xff;
|
|
}
|
|
push @msg,$neededpad;
|
|
push @integdata,$neededpad;
|
|
push @msg,7;
|
|
push @integdata,7;
|
|
my $intdata = pack("C*",@integdata);
|
|
my @acode = unpack("C*",hmac_sha1($intdata,$self->{k1}));
|
|
push @msg,splice @acode,0,12;
|
|
#push integrity pad
|
|
#push @msg,0x7; #reserved byte in 2.0
|
|
#push integrity data
|
|
}
|
|
}
|
|
$socket->send(pack("C*",@msg),0,$self->{peeraddr});
|
|
if ($self->{sequencenumber}) { #if using non-zero, increment, otherwise..
|
|
$self->{sequencenumber} += 1;
|
|
$self->{sequencenumberbytes} = [$self->{sequencenumber}&0xff,($self->{sequencenumber}>>8)&0xff,($self->{sequencenumber}>>16)&0xff,($self->{sequencenumber}>>24)&0xff];
|
|
}
|
|
}
|
|
|
|
1;
|