Current File : //usr/share/perl5/NeedRestart/uCode/Intel.pm
# needrestart - Restart daemons after library updates.
#
# Authors:
# Thomas Liske <thomas@fiasko-nw.net>
#
# Copyright Holder:
# 2013 - 2020 (C) Thomas Liske [http://fiasko-nw.net/~thomas/]
#
# License:
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this package; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
package NeedRestart::uCode::Intel;
use strict;
use warnings;
use NeedRestart::uCode;
use NeedRestart::Utils;
use POSIX qw(uname);
use Locale::TextDomain 'needrestart';
use constant { NRM_INTEL_HELPER => q(/usr/lib/needrestart/iucode-scan-versions),
};
my $LOGPREF = '[uCode/Intel]';
sub nr_ucode_init {
my ( $sysname, $nodename, $release, $version, $machine ) = uname;
my $is_x86 = ( $machine =~ /^(i\d86|x86_64)$/ );
die "$LOGPREF Not running on x86!\n" unless ($is_x86);
die "$LOGPREF iucode-tool not available!\n" unless (`which iucode_tool`);
}
my $_avail;
sub nr_ucode_check_real {
my $debug = shift;
my $ui = shift;
my $info = shift;
my %vars;
# get current microcode revision
if ( defined( $info->{microcode} ) ) {
$vars{CURRENT} = sprintf( "0x%04x", hex( $info->{microcode} ) );
print STDERR
"$LOGPREF #$info->{processor} current revision: $vars{CURRENT}\n"
if ($debug);
}
else {
print STDERR
"$LOGPREF #$info->{processor} current microcode revision not found in /proc/cpuinfo: $!\n"
if ($debug);
return ( NRM_UNKNOWN, %vars );
}
# find and cache microcode updates
unless ( defined($_avail) ) {
my $fh = nr_fork_pipe( $debug, NRM_INTEL_HELPER, $debug );
while (<$fh>) {
if (/\s*\d+(\/\d+)?: sig.+, rev (0x[\da-f]+),/) {
$_avail = sprintf( "0x%04x", hex($2) );
print STDERR
"$LOGPREF #$info->{processor} available revision: $2\n"
if ($debug);
next;
}
}
close($fh);
}
$vars{AVAIL} = $_avail if ( defined($_avail) );
unless ( exists( $vars{CURRENT} ) && exists( $vars{AVAIL} ) ) {
print STDERR
"$LOGPREF #$info->{processor} did not get current microcode version\n"
if ( $debug && !exists( $vars{CURRENT} ) );
print STDERR
"$LOGPREF #$info->{processor} did not get available microcode version\n"
if ( $debug && !exists( $vars{AVAIL} ) );
return ( NRM_UNKNOWN, %vars );
}
if ( hex( $vars{CURRENT} ) >= hex( $vars{AVAIL} ) ) {
return ( NRM_CURRENT, %vars );
}
return ( NRM_OBSOLETE, %vars );
}
1;
Mini Shell