diff options
Diffstat (limited to 'hosts/profitbricks-build16-i386/usr')
| -rwxr-xr-x | hosts/profitbricks-build16-i386/usr/local/bin/dsa-check-running-kernel | 252 | ||||
| -rwxr-xr-x | hosts/profitbricks-build16-i386/usr/local/sbin/nagios-check-libs | 204 |
2 files changed, 456 insertions, 0 deletions
diff --git a/hosts/profitbricks-build16-i386/usr/local/bin/dsa-check-running-kernel b/hosts/profitbricks-build16-i386/usr/local/bin/dsa-check-running-kernel new file mode 100755 index 00000000..80f45bfb --- /dev/null +++ b/hosts/profitbricks-build16-i386/usr/local/bin/dsa-check-running-kernel @@ -0,0 +1,252 @@ +#!/bin/bash + +# Check if the running kernel has the same version string as the on-disk +# kernel image. + +# Copyright 2008,2009,2011,2012,2013,2014 Peter Palfrader +# Copyright 2009 Stephen Gran +# Copyright 2010,2012,2013 Uli Martens +# Copyright 2011 Alexander Reichle-Schmehl +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +OK=0; +WARNING=1; +CRITICAL=2; +UNKNOWN=3; + +get_offset() { + local file needle + + file="$1" + needle="$2" + + perl -e ' + undef $/; + $i = 0; $k=<>; + while (($i = index($k, "'"$needle"'", $i)) >= 0) { + print $i++,"\n"; + }; ' < "$file" +} + +get_avail() { + # This is wrong, but leaves room for when we have to care for machines running + # myfirstunix-image-0.1-dsa-arm + local prefix="$1"; shift + + local kervers=$(uname -r) + + local metavers='' + + # DSA uses kernel versions of the form 2.6.29.3-dsa-dl380-oldxeon, where + # Debian uses versions of the form 2.6.29-2-amd64 + if [ "${kervers#3}" != "$kervers" ]; then + metavers=$(echo $kervers | sed -r -e 's/^3\.[0-9]+(\.[0-9])?+-[A-Za-z0-9\.]+-(.*)/\2/') + elif [ "${kervers//dsa}" != "$kervers" ]; then + metavers=$(echo $kervers | sed -r -e 's/^2\.(4|6)\.[0-9]+([\.0-9]+?)-(.*)/2.\1-\3/') + else + metavers=$(echo $kervers | sed -r -e 's/^2\.(4|6)\.[0-9]+-[A-Za-z0-9\.]+-(.*)/2.\1-\2/') + fi + + # Attempt to track back to a metapackage failed. bail + if [ "$metavers" = "$kervers" ]; then + return 2 + fi + + # We're just going to give up if we can't find a matching metapackage + # I tried being strict once, and it just caused a lot of headaches. We'll see how + # being lax does for us + + local output=$(apt-cache policy ${prefix}-image-${metavers} 2>/dev/null) + local metaavailvers=$(echo "$output" | grep '^ Candidate:' | awk '{print $2}') + local metainstavers=$(echo "$output" | grep '^ Installed:' | awk '{print $2}') + + if [ -z "$metaavailvers" ] || [ "$metaavailvers" = '(none)' ]; then + return 2 + fi + if [ -z "$metainstavers" ] || [ "$metainstavers" = '(none)' ]; then + return 2 + fi + + if [ "$metaavailvers" != "$metainstavers" ] ; then + echo "${prefix}-image-${metavers} $metaavailvers available but $metainstavers installed" + return 1 + fi + + local imagename=0 + # --no-all-versions show shows only the candidate + for vers in $(apt-cache --no-all-versions show ${prefix}-image-${metavers} | sed -n 's/^Depends: //p' | tr ',' '\n' | tr -d ' ' | grep ${prefix}-image | awk '{print $1}' | sort -u); do + if dpkg --compare-versions "1.$vers" gt "1.$imagename"; then + imagename=$vers + fi + done + + if [ -z "$imagename" ] || [ "$imagename" = 0 ]; then + return 2 + fi + + if [ "$imagename" != "${prefix}-image-${kervers}" ]; then + if dpkg --compare-versions 1."$imagename" lt 1."${prefix}-image-${kervers}"; then + return 2 + fi + echo "$imagename" != "${prefix}-image-${kervers}" + return 1 + fi + + local availvrs=$(apt-cache policy ${imagename} 2>/dev/null | grep '^ Candidate' | awk '{print $2}') + local kernelversion=$(apt-cache policy ${prefix}-image-${kervers} 2>/dev/null | grep '^ Installed:' | awk '{print $2}') + + if [ "$availvrs" = "$kernelversion" ]; then + return 0 + fi + + echo "$kernelversion != $availvrs" + return 1 +} + +cat_vmlinux() { + local image header filter hdroff + + image="$1" + header="$2" + filter="$3" + hdroff="$4" + + get_offset "$image" $header | head -n 5 | while read off; do + (if [ "$off" != 0 ]; then + dd ibs="$((off+hdroff))" skip=1 count=0 + fi && + dd bs=512k) < "$image" 2>/dev/null | $filter 2>/dev/null + done +} + +get_image_linux() { + local image + + image="$1" + + # gzip compressed image + cat_vmlinux "$image" "\x1f\x8b\x08\x00" "zcat" 0 + cat_vmlinux "$image" "\x1f\x8b\x08\x08" "zcat" 0 + # lzma compressed image + cat_vmlinux "$image" "\x00\x00\x00\x02\xff" "xzcat" -1 + cat_vmlinux "$image" "\x00\x00\x00\x04\xff" "xzcat" -1 + # xz compressed image + cat_vmlinux "$image" "\xfd\x37\x7a\x58\x5a " "xzcat" 0 + + echo "ERROR: Unable to extract kernel image." 2>&1 + exit 1 +} + + +freebsd_check_running_version() { + local imagefile="$1"; shift + + local r="$(uname -r)" + local v="$(uname -v| sed -e 's/^#[0-9]*/&:/')" + + local q='@(#)FreeBSD '"$r $v" + + if zcat "$imagefile" | $STRINGS | grep -F -q "$q"; then + echo "OK" + else + echo "not OK" + fi +} + +STRINGS=""; +if [ -x "$(which strings)" ]; then + STRINGS="$(which strings)" +elif [ -x "$(which busybox)" -a "$( echo foobar | $(which busybox) strings 2>/dev/null)" = "foobar" ]; then + STRINGS="$(which busybox) strings" +fi + +searched="" +for on_disk in \ + "/boot/vmlinuz-`uname -r`"\ + "/boot/vmlinux-`uname -r`"\ + "/boot/kfreebsd-`uname -r`.gz"; do + + if [ -e "$on_disk" ]; then + if [ -z "$STRINGS" ]; then + echo "UNKNOWN: 'strings' command missing, perhaps install binutils or busybox?" + exit $UNKNOWN + fi + if [ "${on_disk/vmlinu}" != "$on_disk" ]; then + on_disk_version="`get_image_linux "$on_disk" | $STRINGS | grep 'Linux version' | head -n1`" + if [ -x /usr/bin/lsb_release ] ; then + vendor=$(lsb_release -i -s) + if [ -n "$vendor" ] && [ "xDebian" != "x$vendor" ] ; then + on_disk_version=$( echo $on_disk_version|sed -e "s/ ($vendor [[:alnum:]\.-]\+ [[:alnum:]\.]\+)//") + fi + fi + [ -z "$on_disk_version" ] || break + on_disk_version="`cat "$on_disk" | $STRINGS | grep 'Linux version' | head -n1`" + [ -z "$on_disk_version" ] || break + + echo "UNKNOWN: Failed to get a version string from image $on_disk" + exit $UNKNOWN + else + on_disk_version="$(zcat $on_disk | $STRINGS | grep Debian | head -n 1 | sed -e 's/Debian [[:alnum:]]\+ (\(.*\))/\1/')" + fi + fi + searched="$searched $on_disk" +done + +if ! [ -e "$on_disk" ]; then + echo "WARNING: Did not find a kernel image (checked$searched) - I have no idea which kernel I am running" + exit $WARNING +fi + +if [ "$(uname -s)" = "Linux" ]; then + running_version="`cat /proc/version`" + if [ -z "$running_version" ] ; then + echo "UNKNOWN: Failed to get a version string from running system" + exit $UNKNOWN + fi + + if [ "$running_version" != "$on_disk_version" ]; then + echo "WARNING: Running kernel does not match on-disk kernel image: [$running_version != $on_disk_version]" + exit $WARNING + fi + + ret="$(get_avail linux)" + if [ $? = 1 ]; then + echo "WARNING: Kernel needs upgrade [$ret]" + exit $WARNING + fi +else + image_current=$(freebsd_check_running_version $on_disk) + running_version="`uname -s` `uname -r` `uname -v`" + if [ "$image_current" != "OK" ]; then + approx_time="$(date -d "@`stat -c '%Y' "$on_disk"`" +"%Y-%m-%d %H:%M:%S")" + echo "WARNING: Currently running kernel ($running_version) does not match on disk image (~ $approx_time)" + exit $WARNING; + fi + + ret="$(get_avail linux)" + if [ $? = 1 ]; then + echo "WARNING: Kernel needs upgrade [$ret]" + exit $WARNING + fi +fi + +echo "OK: Running kernel matches on disk image: [$running_version]" +exit $OK diff --git a/hosts/profitbricks-build16-i386/usr/local/sbin/nagios-check-libs b/hosts/profitbricks-build16-i386/usr/local/sbin/nagios-check-libs new file mode 100755 index 00000000..77b37805 --- /dev/null +++ b/hosts/profitbricks-build16-i386/usr/local/sbin/nagios-check-libs @@ -0,0 +1,204 @@ +#!/usr/bin/perl -w + +# Copyright (C) 2005, 2006, 2007, 2008, 2012, 2015 Peter Palfrader <peter@palfrader.org> +# 2012 Uli Martens <uli@youam.net> +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +use strict; +use English; +use Getopt::Long; + +$ENV{'PATH'} = '/bin:/sbin:/usr/bin:/usr/sbin'; +delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'}; + +my $LSOF = '/usr/bin/lsof -F0'; +my $VERSION = '0.2015012901'; + +# nagios exit codes +my $OK = 0; +my $WARNING = 1; +my $CRITICAL = 2; +my $UNKNOWN = 3; + +my $params; +my $config; + +Getopt::Long::config('bundling'); + +sub dief { + print STDERR @_; + exit $UNKNOWN; +} + +if (!GetOptions ( + '--help' => \$params->{'help'}, + '--version' => \$params->{'version'}, + '--quiet' => \$params->{'quiet'}, + '--verbose' => \$params->{'verbose'}, + '-v' => \$params->{'verbose'}, + '--config=s' => \$params->{'config'}, + )) { + dief ("$PROGRAM_NAME: Usage: $PROGRAM_NAME [--help|--version] [--verbose] [--quiet] [--config=<CONFIGFILE>]\n"); +}; +if ($params->{'help'}) { + print "$PROGRAM_NAME: Usage: $PROGRAM_NAME [--help|--version] [--verbose] [--quiet] [--config=<CONFIGFILE>]\n"; + print "Reports processes that are linked against libraries that no longer exist.\n"; + print "The optional config file can specify ignore rules - see the sample config file.\n"; + exit (0); +}; +if ($params->{'version'}) { + print "nagios-check-libs $VERSION\n"; + print "nagios check for availability of debian (security) updates\n"; + print "Copyright (c) 2005, 2006, 2007, 2008, 2012 Peter Palfrader <peter\@palfrader.org>\n"; + exit (0); +}; + +if (! defined $params->{'config'}) { + $params->{'config'} = '/etc/nagios/check-libs.conf'; +} elsif (! -e $params->{'config'}) { + dief("Config file $params->{'config'} does not exist.\n"); +} + +if (-e $params->{'config'}) { + eval "use YAML::Syck; 1" or dief "you need YAML::Syck (libyaml-syck-perl) to load a config file"; + open(my $fh, '<', $params->{'config'}) or dief "Cannot open config file $params->{'config'}: $!"; + $config = LoadFile($fh); + close($fh); + if (!(ref($config) eq "HASH")) { + dief("Loaded config is not a hash!\n"); + } +} else { + $config = { + 'ignorelist' => [ + '$path =~ m#^/proc/#', + '$path =~ m#^/var/tmp/#', + '$path =~ m#^/SYS#', + '$path =~ m#^/drm$# # xserver stuff', + '$path =~ m#^/dev/zero#', + '$path =~ m#^/dev/shm/#', + ] + }; +} + +if (! exists $config->{'ignorelist'}) { + $config->{'ignorelist'} = []; +} elsif (! (ref($config->{'ignorelist'}) eq 'ARRAY')) { + dief("Config->ignorelist is not an array!\n"); +} + + +my %processes; + +sub getPIDs($$) { + my ($user, $process) = @_; + return join(', ', sort keys %{ $processes{$user}->{$process} }); +}; +sub getProcs($) { + my ($user) = @_; + + return join(', ', map { $_.' ('.getPIDs($user, $_).')' } (sort {$a cmp $b} keys %{ $processes{$user} })); +}; +sub getUsers() { + return join('; ', (map { $_.': '.getProcs($_) } (sort {$a cmp $b} keys %processes))); +}; +sub inVserver() { + my ($f, $key); + if (-e "/proc/self/vinfo" ) { + $f = "/proc/self/vinfo"; + $key = "XID"; + } else { + $f = "/proc/self/status"; + $key = "s_context"; + }; + open(F, "< $f") or return 0; + while (<F>) { + my ($k, $v) = split(/: */, $_, 2); + if ($k eq $key) { + close F; + return ($v > 0); + }; + }; + close F; + return 0; +} + +my $INVSERVER = inVserver(); + +print STDERR "Running $LSOF -n\n" if $params->{'verbose'}; +open (LSOF, "$LSOF -n|") or dief ("Cannot run $LSOF -n: $!\n"); +my @lsof=<LSOF>; +close LSOF; +if ($CHILD_ERROR) { # program failed + dief("$LSOF -n returned with non-zero exit code: ".($CHILD_ERROR / 256)."\n"); +}; + +my ($process, $pid, $user); +LINE: for my $line (@lsof) { + if ( $line =~ /^p/ ) { + my %fields = map { m/^(.)(.*)$/ ; $1 => $2 } grep { defined $_ and length $_ >1} split /\0/, $line; + $process = $fields{c}; + $pid = $fields{p}; + $user = $fields{L}; + next; + } + + unless ( $line =~ /^f/ ) { + dief("UNKNOWN strange line read from lsof\n"); + # don't print it because it contains NULL characters... + } + + my %fields = map { m/^(.)(.*)$/ ; $1 => $2 } grep { defined $_ and length $_ >1} split /\0/, $line; + + my $fd = $fields{f}; + my $inode = $fields{i}; + my $path = $fields{n}; + if ($path =~ m/\.dpkg-/ || $path =~ m/\(deleted\)/ || $path =~ /path inode=/ || $path =~ m#/\.nfs# || $fd eq 'DEL') { + my $deleted_in_path = ($path =~ m/\(deleted\)/ || $path =~ m/\.nfs/); + next if ($deleted_in_path && $fd =~ /^[0-9]*$/); # Ignore deleted files that are open via normal file handles. + next if ($deleted_in_path && $fd eq 'cwd'); # Ignore deleted directories that we happen to be in. + + $path =~ s/^\(deleted\)//; # in some cases "(deleted)" is at the beginning of the string + for my $i (@{$config->{'ignorelist'}}) { + my $ignore = eval($i); + next LINE if $ignore; + } + next if ($INVSERVER && ($process eq 'init') && ($pid == 1) && ($user eq 'root')); + if ( $params->{'verbose'} ) { + print STDERR "adding $process($pid) because of [$path]:\n"; + print STDERR $line; + } + $processes{$user}->{$process}->{$pid} = 1; + }; +}; + + + +my $message=''; +my $exit = $OK; +if (keys %processes) { + $exit = $WARNING; + $message = 'The following processes have libs linked that were upgraded: '. getUsers()."\n"; +} else { + $message = "No upgraded libs linked in running processes\n" unless $params->{'quiet'}; +}; + +print $message; +exit $exit; |