mirror of
https://github.com/Telecominfraproject/wlan-lanforge-scripts.git
synced 2025-10-28 17:32:35 +00:00
2be72140c9
This was happening when a unit was getting moved between networks and a totally different IP was found for it Signed-off-by: Jed Reynolds <jed@candelatech.com>
517 lines
18 KiB
Perl
Executable File
517 lines
18 KiB
Perl
Executable File
#!/usr/bin/perl
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use strict;
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use warnings;
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use diagnostics;
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use Carp;
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use Data::Dumper;
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use File::Temp qw(tempfile tempdir);
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use Getopt::Long;
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my $Q='"';
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my $q="'";
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my @idhunks = split(' ', `id`);
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my @hunks = grep { /uid=/ } @idhunks;
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die ("Must be root to use this")
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unless( $hunks[0] eq "uid=0(root)" );
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@idhunks = undef;
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@hunks = undef;
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my $start_time = `date +%Y%m%d-%H%M%S`;
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chomp($start_time);
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my $do_help = 0;
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my $do_automatic = ( -t STDIN ) ? 0 : 1; # test for terminal stdin
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my $debug = $ENV{'DEBUG'};
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my $usage = "$0 :
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Use this to update /etc/hosts and /etc/httpd/http.conf for
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LANforge server operations. By default this script will backup
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your /etc/hosts file to /etc/.hosts.\$date and write a new copy
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to /tmp/t_hosts_\$random. It will show you the difference between
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the files and prompt you to continue. When you approve it will
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copy /tmp/t_hosts_\$random to /etc/hosts.
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-d --debug enable debug (or use \$ set DEBUG=1)
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-a --auto automatic operation mode, no prompts
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-h --help this message
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";
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GetOptions(
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"h|help" => \$do_help,
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"d|debug" => \$debug,
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"a|auto|automatic" => \$do_automatic,
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) || die($usage);
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if ($do_help) {
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print $usage;
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exit(0);
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}
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sub syslogg {
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my $msg = join('\n', @_);
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$msg =~ s/\r*\n/ /;
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`logger -t adjust_apache "$msg"`
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}
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sub err {
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my $msg = "[error] ".join("\n", @_);
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print STDERR $msg, "\n";
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syslogg($msg) if ($do_automatic);
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}
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sub die_err {
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my $msg = "[fatal] ".join("\n", @_);
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syslogg($msg) if ($do_automatic);
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die($msg);
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}
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sub warning {
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my $msg = "[warning] ".join("\n", @_);
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print STDOUT $msg, "\n";
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syslogg($msg) if ($do_automatic);
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}
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sub info {
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my $msg = "[inf] ".join("\n", @_);
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print STDOUT $msg, "\n";
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syslogg($msg) if ($do_automatic);
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}
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my $MgrHostname = `cat /etc/hostname`;
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chomp($MgrHostname);
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info("Will be setting hostname to $MgrHostname");
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sleep 3 if ($debug);
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my $config_v = "/home/lanforge/config.values";
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# grab the config.values file
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die_err("Unable to find $config_v" )
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unless ( -f $config_v);
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my @configv_lines = `cat $config_v`;
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die_err("Probably too little data in config.values")
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unless (@configv_lines > 5);
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my %configv = ();
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foreach my $line (@configv_lines) {
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my ($key, $val) = $line =~ /^(\S+)\s+(.*)$/;
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$configv{$key} = $val;
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}
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die_err("Unable to parse config.values")
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unless ((keys %configv) > 5);
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die_err("no mgt_dev in config.values")
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unless defined $configv{'mgt_dev'};
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info("LANforge config states mgt_dev $configv{'mgt_dev'}");
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if ( ! -d "/sys/class/net/$configv{'mgt_dev'}") {
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die_err( "Please run lfconfig again with your updated mgt_port value.");
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}
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my $ipline = `ip -o a show $configv{"mgt_dev"}`;
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my ($ip) = $ipline =~ / inet ([0-9.]+)(\/\d+)? /g;
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die_err("No ip found for mgt_dev; your config.values file is out of date: $!")
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unless ((defined $ip) && ($ip ne ""));
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print "ip: $ip\n" if ($debug);
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# This must be kept in sync with similar code in lf_kinstall.
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my $found_localhost = 0;
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my $fname = "/etc/hosts";
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my $backup = "/etc/.hosts.$start_time";
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`cp $fname $backup`;
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die_err("Unable to create backup of /etc/hosts at $backup") if ( ! -f $backup );
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my ($fh, $editfile) = tempfile( "t_hosts_XXXX", DIR=>'/tmp', SUFFIX=>'.txt');
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if (-f "$fname") {
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my @lines = `cat $fname`;
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#open(FILE, ">$fname") or die "Couldn't open file: $fname for writing: $!\n\n";
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my $foundit = 0;
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my $i;
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# chomp is way to simplistic if we need to weed out \r\n characters as well
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#chomp(@lines);
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for (my $i = 0; $i < @lines; $i++) {
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($lines[$i]) = $lines[$i] =~ /^([^\r\n]+)\r?\n$/;
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}
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# we want to consolidate the $ip $hostname entry for MgrHostname
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my @newlines = ();
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my %more_hostnames = ();
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my $new_entry = "$ip ";
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#my $blank = 0;
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#my $was_blank = 0;
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my $counter = 0;
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if ((exists $ENV{"DEBUG"}) && ($ENV{"DEBUG"} eq "1")) {
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$debug = 1;
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}
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my %host_map = (
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"localhost.localdomain" => "127.0.0.1",
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"localhost" => "127.0.0.1",
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"localhost4.localdomain4" => "127.0.0.1",
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"localhost4" => "127.0.0.1",
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"localhost.localdomain" => "::1",
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"localhost" => "::1",
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"localhost6.loaldomain6" => "::1",
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"localhost6" => "::1",
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$MgrHostname => $ip,
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"lanforge.localnet" => "192.168.1.101",
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"lanforge.localdomain" => "192.168.1.101",
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);
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my %comment_map = ();
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my %address_marker_map = ();
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my %address_map = (
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"127.0.0.1" => "localhost.localdomain localhost localhost4.localdomain4 localhost4",
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"::1" => "localhost.localdomain localhost localhost6.loaldomain6 localhost6",
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$ip => $MgrHostname,
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"192.168.1.101" => "lanforge.localnet lanforge.localdomain",
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);
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if ($debug) {
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print Dumper(\%address_map);
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print Dumper(\%host_map);
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}
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my $prevname = "";
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my $previp = "";
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for my $ln (@lines) {
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next if (!(defined $ln));
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# print "\nLN[$ln]\n" if ($debug);
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next if ($ln =~ /^\s*$/);
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next if ($ln =~ /^\s*#/);
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next if ($ln =~ /LF-HOSTAME-NEXT/); # old typo
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next if ($ln =~ /LF-HOSTNAME-NEXT/);
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my $comment = undef;
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# print "PARSING IPv4 ln[$ln]\n" if ($debug);
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if ($ln =~ /#/) {
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($comment) = $ln =~ /^[^#]+(#.*)$/;
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($ln) = $ln =~ /^([^#]+)\s*#/;
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print "line with comment becomes [$ln]\n" if ($debug);
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}
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@hunks = split(/\s+/, $ln);
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my $middleip = 0;
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my $counter2 = -1;
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my $linehasip = 0;
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my $lfhostname = 0;
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if ((defined $comment) && ($comment ne "")) {
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$comment_map{$hunks[0]} = $comment;
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}
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for my $hunk (@hunks) {
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# print "\n HUNK",$counter2,"-:$hunk:- " if ($debug);
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$counter2++;
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next if ($hunk =~ /^localhost/);
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next if ($hunk =~ /^lanforge-srv$/);
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next if ($hunk =~ /^lanforge\.local(domain|net)$/);
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next if ($hunk =~ /^extra6?-\d+/);
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if ($hunk =~ /^\s*$/) {
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next;
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}
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if ($hunk =~ /^$ip$/) {
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$linehasip++;
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$lfhostname++;
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}
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elsif ($hunk =~ /^$MgrHostname$/) {
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$lfhostname++;
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$prevname = $hunk;
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}
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$previp = "" if (!defined($previp));
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if (($hunk =~ /^127\.0\.0\.1/)
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|| ($hunk =~ /^192\.168\.1\.101/)
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|| ($hunk =~ /^::1$/)) {
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$previp = $hunk;
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$linehasip++;
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}
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elsif ($hunk =~ /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) {
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$linehasip++;
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# print " IP4($hunk)" if ($debug);
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if ($counter2 > 0) { # we're not first item on line
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$middleip++ if ($counter2 > 0);
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# print "middle" if ($debug);
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}
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if (!(defined $address_map{$hunk})) {
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$address_map{$hunk} = "";
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}
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# print "+IP4" if ($debug);
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if (("" ne $prevname) && ($counter2 > 0)) {
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# print " hunk($hunk)prev($prevname)" if ($debug);
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$address_map{$hunk} .= " $prevname"
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if ($address_map{$hunk} !~ /\s*$prevname\s*/);
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# $host_map{$prevname} .= " $hunk";
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if ($host_map{$prevname} !~ /\b$hunk\b/) {
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$host_map{$prevname} .= " $hunk";
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}
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}
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$previp = $hunk;
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}
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elsif (($hunk =~ /[G-Zg-z]+\.?/) || ($hunk =~ /^[^:A-Fa-f0-9]+/)) {
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# print " notIP($hunk)" if ($debug);
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$prevname = $hunk;
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if ($middleip) {
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# print " middle($previp)" if ($debug);
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$address_map{$previp} .= " $hunk"
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if ($address_map{$previp} !~ /\b$hunk\b/);
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$prevname = $hunk;
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if ($host_map{$prevname} !~ /\b$hunk\b/) {
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$host_map{$prevname} .= " $previp";
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}
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}
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elsif ($linehasip) {
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# print " prev($previp) hunk($hunk)" if ($debug);
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$address_map{$previp} .= " $hunk"
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if ($address_map{$previp} !~ /\s*$hunk\s*/);
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if ((defined $prevname) && (exists $host_map{$prevname}) && ($host_map{$prevname} !~ /\b$hunk\b/)) {
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$host_map{$hunk} .= " $previp";
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}
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}
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elsif ($lfhostname) {
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$more_hostnames{$hunk} = 1;
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if ($host_map{$prevname} !~ /\b$hunk\b/) {
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$host_map{$hunk} .= " $previp";
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}
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}
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else { # strange word
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if ("" eq $previp) {
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print " hunk($hunk) has no IP***" if ($debug);
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$more_hostnames{$hunk} = 1;
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}
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elsif ($address_map{$previp} !~ /\s*$hunk\s*/) {
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$address_map{$previp} .= " $hunk";
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if ($host_map{$prevname} !~ /\b$hunk\b/) {
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$host_map{$hunk} .= " $previp";
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}
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}
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}
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}
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elsif (($hunk =~ /::/)
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|| ($hunk =~ /[0-9A-Fa-f]+:/)) {
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# print " hunk6($hunk)" if ($debug);
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$linehasip++;
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if (!(defined $address_map{$hunk})) {
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$address_map{$hunk} = "";
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}
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$previp = $hunk;
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}
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elsif ($address_map{$previp} !~ /\s*$hunk\s*/) {
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# is hostname and not an ip
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$address_map{$previp} .= " $hunk";
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if ($host_map{$prevname} !~ /\b$hunk\b/) {
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$host_map{$hunk} .= " $previp";
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}
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}
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} # ~foreach hunk
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} # ~foreach line
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if (($host_map{$MgrHostname} !~ /^\s*$/) && ($host_map{$MgrHostname} =~ /\S+\s+\S+/)) {
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print("Multiple IPs for this hostname: " . $host_map{$MgrHostname} . "\n") if ($debug);
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my @iphunks = split(/\s+/, $host_map{$MgrHostname});
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print "Changing $MgrHostname to $ip; hostmap: <<$host_map{$MgrHostname}>> addrmap: <<$address_map{$ip}>>\n"
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if ($debug);
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$host_map{$MgrHostname} = $ip;
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}
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for my $name (sort keys %more_hostnames) {
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$address_map{$ip} .= " $name";
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print "updated address_map entry: $ip -> $address_map{$ip}\n" if ($debug);
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}
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# this might be premature
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unshift(@newlines, "192.168.1.101 " . $address_map{"192.168.1.101"});
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unshift(@newlines, "127.0.0.1 " . $address_map{"127.0.0.1"});
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unshift(@newlines, "::1 " . $address_map{"::1"});
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my %used_addresses = ();
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delete($address_map{"192.168.1.101"});
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$used_addresses{"192.168.1.101"} = 1;
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delete($address_map{"127.0.0.1"});
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$used_addresses{"127.0.0.1"} = 1;
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delete($address_map{"::1"});
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$used_addresses{"::1"} = 1;
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if ($debug) {
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print "# ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----\n";
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print "\nAddress map\n";
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print Dumper(\%address_map);
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print "\nHost map\n";
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print Dumper(\%host_map);
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print "# ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----\n";
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sleep 2;
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}
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# ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
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# we want to maintain the original line ordering as faithfully as possible
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# ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
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for my $ln (@lines) {
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$ln = "" if (!(defined $ln));
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print "old[$ln]\n" if ($debug);
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# if we are comments or blank lines, preserve them
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next if ($ln =~ /LF-HOSTNAME-NEXT/);
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next if ($ln =~ /\b$MgrHostname\b/); # skip our mgt hostname
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next if ($ln =~ /^$host_map{$MgrHostname}\s+/); # line starts with present IP addr
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if (($ln =~ /^\s*$/) || ($ln =~ /^\s*#/)) {
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push(@newlines, $ln);
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next;
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}
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@hunks = split(/\s+/, $ln);
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if (exists $address_map{$hunks[0]}) {
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if ((exists $address_marker_map{$hunks[0]})
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|| (exists $used_addresses{$hunks[0]})) {
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print "already printed $hunks[0]\n" if ($debug);
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next;
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}
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my $comment = "";
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if (exists $comment_map{$hunks[0]}) {
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$comment = " $comment_map{$hunks[0]}";
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}
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push(@newlines, "$hunks[0] $address_map{$hunks[0]}$comment");
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$address_marker_map{$hunks[0]} = 1;
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next;
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}
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if (!(exists $used_addresses{$hunks[0]})) {
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warning("untracked IP <<$hunks[0]>> Used addresses:");
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print Dumper(\%address_marker_map) if ($debug);
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print Dumper(\%used_addresses) if ($debug);
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}
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}
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push(@newlines, "###-LF-HOSTNAME-NEXT-###");
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push(@newlines, $ip . " " . $address_map{$ip});
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if ($debug) {
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print "# ----- new /etc/hosts ----- ----- ----- ----- ----- ----- ----- ----- ----- -----\n";
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for my $ln (@newlines) {
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print "$ln\n";
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}
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print "# ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----\n";
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sleep 5;
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}
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# write to /tmp/t_hosts_$random
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for my $ln (@newlines) {
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print $fh "$ln\n";
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}
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close $fh;
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my $wc_edit_file = `wc -l < $editfile`;
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chomp($wc_edit_file);
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my $wc_orig_file = `wc -l < $backup`;
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if ($wc_edit_file == 0) {
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die_err("Abandoning $editfile, it was blank.");
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exit(1);
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}
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my $there_are_diffs = `/bin/diff /etc/hosts $editfile > /dev/null && echo 0 || echo 1`;
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chomp($there_are_diffs);
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$there_are_diffs = int($there_are_diffs);
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if (! $there_are_diffs) {
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info("No difference in hosts file.");
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sleep(1) if (!$do_automatic);
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}
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elsif (!$do_automatic) {
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my $msg = "Original /etc/hosts file backed up to $backup\n"
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. "The hosts file differs by " . ($wc_orig_file - $wc_edit_file) . "lines, at: $editfile\n"
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. "Displaying difference...\n";
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info($msg);
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sleep(2);
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my $diffcmd = "diff -y /etc/hosts $editfile";
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if ( -x "/usr/bin/colordiff" ) {
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$diffcmd = "colordiff -y /etc/hosts $editfile";
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}
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open(my $diff_in, "-|", $diffcmd);
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my ($diff_out, $diff_file) = tempfile( "diff_hosts_XXXX", DIR=>"/tmp" );
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my @diff_lines = <$diff_in>;
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close($diff_in);
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print $diff_out join("", @diff_lines);
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close($diff_out);
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system("/bin/less -Nr $diff_file");
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print "/bin/less -dNr $diff_file\n" if ($debug);
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# prompt to exit
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print "Press Enter to continue, [ctrl-c] to quit >";
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my $i = <STDIN>;
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}
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if ($there_are_diffs) {
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warning("Line comparison: $backup\: $wc_orig_file, $editfile\: $wc_edit_file");
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warning("Installing new hosts file from $editfile, backup at $backup");
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system("cp $editfile /etc/hosts");
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}
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} # ~if found hosts file
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my $local_crt ="";
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my $local_key ="";
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my $hostname_crt ="";
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my $hostname_key ="";
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# check for hostname shaped cert files
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if (-f "/etc/pki/tls/certs/localhost.crt") {
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$local_crt = "/etc/pki/tls/certs/localhost.crt";
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}
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if (-f "/etc/pki/tls/private/localhost.key") {
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$local_key = "/etc/pki/tls/private/localhost.key";
|
|
}
|
|
|
|
if (-f "/etc/pki/tls/certs/$MgrHostname.crt") {
|
|
$hostname_crt = "/etc/pki/tls/certs/$MgrHostname.crt";
|
|
}
|
|
if (-f "/etc/pki/tls/private/$MgrHostname.key") {
|
|
$hostname_key = "/etc/pki/tls/private/$MgrHostname.key";
|
|
}
|
|
|
|
# grab the 0000-default.conf file
|
|
my @places_to_check = (
|
|
"/etc/apache2/apache2.conf",
|
|
"/etc/apache2/ports.conf",
|
|
"/etc/apache2/sites-available/000-default.conf",
|
|
"/etc/apache2/sites-available/0000-default.conf",
|
|
"/etc/httpd/conf/http.conf",
|
|
"/etc/httpd/conf/httpd.conf",
|
|
"/etc/httpd/conf.d/ssl.conf",
|
|
"/etc/httpd/conf.d/00-ServerName.conf",
|
|
);
|
|
foreach my $file (@places_to_check) {
|
|
if (-f $file) {
|
|
print "Checking $file...\n";
|
|
my @lines = `cat $file`;
|
|
chomp @lines;
|
|
# we want to match Listen 80$ or Listen 443 https$
|
|
# we want to replace with Listen lanforge-mgr:80$ or Listen lanforge-mgr:443 https$
|
|
@hunks = grep {/^\s*(Listen|SSLCertificate)/} @lines;
|
|
if (@hunks) {
|
|
my $edited = 0;
|
|
my @newlines = ();
|
|
@hunks = (@hunks, "\n");
|
|
print "Something to change in $file\n";
|
|
print "These lines are interesting:\n";
|
|
print join("\n", @hunks);
|
|
foreach my $confline (@lines) {
|
|
if ($confline =~ /^\s*Listen\s+(?:80|443) */) {
|
|
$confline =~ s/Listen /Listen ${MgrHostname}:/;
|
|
print "$confline\n";
|
|
}
|
|
elsif ($confline =~ /^\s*Listen\s+(?:[^:]+:(80|443)) */) {
|
|
$confline =~ s/Listen [^:]+:/Listen ${MgrHostname}:/;
|
|
print "$confline\n";
|
|
}
|
|
if ($confline =~ /^\s*SSLCertificateFile /) {
|
|
$confline = "SSLCertificateFile $hostname_crt" if ("" ne $hostname_crt);
|
|
}
|
|
if ($confline =~ /^\s*SSLCertificateKeyFile /) {
|
|
$confline = "SSLCertificateKeyFile $hostname_key" if ("" ne $hostname_key);
|
|
}
|
|
push @newlines, $confline;
|
|
$edited++ if ($confline =~ /# modified by lanforge/);
|
|
}
|
|
push(@newlines, "# modified by lanforge\n") if ($edited == 0);
|
|
|
|
my $fh;
|
|
die($!) unless open($fh, ">", $file);
|
|
print $fh join("\n", @newlines);
|
|
close $fh;
|
|
}
|
|
else {
|
|
print "Nothing looking like [Listen 80|443] in $file\n";
|
|
}
|
|
}
|
|
} # ~for places_to_check
|
|
if (-d "/etc/httpd/conf.d") {
|
|
die($!) unless open(FILE, ">", "/etc/httpd/conf.d/00-ServerName.conf");
|
|
print FILE "ServerName $MgrHostname\n";
|
|
#print FILE "Listen $MgrHostname:80\n";
|
|
#print FILE "Listen $MgrHostname:443\n";
|
|
close FILE;
|
|
}
|
|
|
|
#
|