git.rot13.org Git - dell-switch/blob - neighbours.pl

   1 #!/usr/bin/perl
   2 use warnings;
   3 use strict;
   4 use autodie;
   5
   6 # ./sw-name-mac.sh
   7 # ./sw-names | xargs -i ./dell-switch.pl {} 'show lldp neighbors'
   8
   9 use Data::Dump qw(dump);
  10
  11 my $debug = $ENV{DEBUG} || 0;
  12
  13 my $mac2name;
  14
  15 open(my $f, '<'. '/dev/shm/sw-name-mac');
  16 while(<$f>) {
  17         chomp;
  18         #my ( $ip, $name, $mac ) = split(/ /,$_);
  19         my ( $name, $mac ) = split(/ /,$_);
  20         $mac = lc($mac);
  21         $mac2name->{$mac} = $name;
  22 }
  23
  24 sub mac2name {
  25         my ( $mac, $name ) = @_;
  26
  27         $mac = lc($mac);
  28
  29         if ( exists $mac2name->{$mac} ) {
  30                 my $mac_name = $mac2name->{$mac};
  31                 warn "ERROR: name different $name != $mac_name" if $name && $name ne $mac_name;
  32                 return ( $mac, $mac_name );
  33         }
  34         return ( $mac, $name );
  35 }
  36
  37 warn "# mac2name = ",dump($mac2name) if $debug;
  38
  39 open(my $n_fh, '>', '/dev/shm/neighbors.tab');
  40 open(my $html_fh, '>', '/var/www/neighbors.html');
  41 print $html_fh qq{<table>\n};
  42
  43 # parse Dell switch lldp neighbors output
  44
  45 foreach my $file ( glob('log/*lldp*') ) {
  46         my ( undef, $name, undef ) = split(/_/, $file);
  47         print "# $name $file\n" if $debug;
  48
  49         my $line_regex;
  50         my @ports;
  51
  52         open(my $f, '<', $file);
  53         while(<$f>) {
  54                 chomp;
  55                 #print "## $_<--\n";
  56                 next if ( /^$/ || /^\s+Port/ );
  57                 if ( /^--+/ ) {
  58                         $line_regex = $_;
  59                         $line_regex =~ s/\s+$//;
  60                         $line_regex =~ s/-/./g;
  61                         $line_regex =~ s/^/(/g;
  62                         $line_regex =~ s/ /) (/g;
  63                         $line_regex =~ s/$/)/g;
  64
  65                         if ( $file =~ m/remote-device/ ) {
  66                                 $line_regex =~ s{\) \(}{.)(}g;
  67                                 $line_regex =~ s{\(\.+\)$}{(.+)}g;
  68                         }
  69
  70                         print "## line_regex = $line_regex\n" if $debug;
  71                         next;
  72                 }
  73
  74                 s{^\s+}{} if $file =~ m/remote-device/; # remote left-over from pager
  75
  76                 my @v;
  77
  78                 if ( defined($line_regex) &&  /$line_regex/ ) {
  79                         # port, mac, remote_port, system_name, capabilities
  80                         @v = ( $1, $2, $3, $4, $5 );
  81
  82                         if ( $file =~ m/neighbors/ ) {
  83
  84                                 # show lldp neighbours
  85                                 # Port       Device ID          Port ID          System Name     Capabilities
  86
  87                         } elsif ( $file =~ m/remote-device/ ) {
  88
  89                                 # show lldp remote-device all
  90                                 # Interface RemID   Chassis ID          Port ID           System Name
  91
  92                                 @v = ( $v[0], $v[2], $v[3], $v[4], '' );
  93
  94                                 # move overflow numbers from system name to port id
  95                                 if ( $v[3] =~ s{^(\d+)}{} ) {
  96                                         $v[2] .= $1;
  97                                 }
  98
  99                         } else {
 100                                 die "don't know how to parse $file";
 101                         }
 102                 } elsif ( defined($line_regex) && $file =~ m/remote-device/ ) {
 103                         # if we don't have system name, line_regex is too long
 104                         my @s = split(/\s+/,$_);
 105                         @v = ( $s[0], $s[2], $s[3], '', '' ) if $#s == 3;
 106                 } elsif ( $debug ) {
 107                         my $l = $line_regex;
 108                         $l =~ s{[\(\)]}{}g;
 109                         print "# [$_]<-- LINE IGNORED\n# [$l]\n",dump($_);
 110                 }
 111
 112                 if (@v) {
 113                         print "# [$_] ",join('|',@v),$/ if $debug;
 114
 115                         @v = map { s/^\s+//; s/\s+$//; $_ } @v;
 116
 117                         if ( length($v[1]) == 6 ) { # decode text mac
 118                                 $v[1] = unpack('H*', $v[1]);
 119                                 $v[1] =~ s/(..)/$1:/g;
 120                                 $v[1] =~ s/:$//;
 121                         }
 122
 123                         ( $v[1], $v[3] ) = mac2name( $v[1], $v[3] );
 124
 125
 126                         #my ( $port, $device_id, $port_id, $system_name, $cap ) = @v;
 127                         if ( @ports && $v[0] =~ m/^$/ ) {
 128                                 my @old = @{ pop @ports };
 129                                 foreach my $i ( 0 .. $#old ) {
 130                                         $old[$i] .= $v[$i];
 131                                 }
 132                                 push @ports, [ @old ];
 133                         } else {
 134                                 push @ports, [ @v ];
 135                         }
 136                 } else {
 137                         if ( $debug ) {
 138                                 my $l = $line_regex;
 139                                 $l =~ s{[\(\)]}{}g;
 140                                 print "# [$_]<-- IGNORED no v\n# [$l]\n";
 141                         }
 142                 }
 143         }
 144
 145         foreach my $p ( @ports ) {
 146                 next if ( $p->[1] eq lc($p->[2]) && $p->[3] eq '' ); # FIXME hosts?
 147                 print "$name ", join(' | ', @$p ), "\n";
 148                 print $n_fh "$name\t", join("\t", @$p ), "\n";
 149                 print $html_fh "<tr><td>$name</td><td>", join("</td><td>", @$p ), "</td></tr>\n";
 150         }
 151 }
 152
 153 # prase MikroTik /ip neighbor print detail terse
 154
 155 foreach my $file ( glob('../mikrotik-switch/out/*neighbor*'), glob('../tilera/out/*neighbor*') ) {
 156         my $name = $1 if $file =~ m{out/([\w\-]+)\.ip neighbor};
 157         print "## [$name] file $file\n" if $debug;
 158         open(my $f, '<', $file);
 159         while(<$f>) {
 160                 chomp;
 161                 next if m/^\s*$/;
 162                 s{^\s*\d+\s+}{}; # remote ordinal number
 163                 print "# $_\n" if $debug;
 164                 my $l;
 165                 foreach my $kv ( split(/ /, $_) ) {
 166                         my ($k,$v) = split(/=/, $kv);
 167                         $l->{$k} = $v if ( defined($v) && $v ne '""' );
 168                 }
 169
 170                 no warnings 'uninitialized';
 171
 172                 #warn "## l=",dump($l),$/;
 173                 # Port       Device ID          Port ID          System Name     Capabilities
 174                 my @v = (
 175                         $l->{interface},
 176                         $l->{'mac-address'},
 177                         $l->{'interface-name'},
 178                         $l->{'identity'},
 179                         #$l->{caps},
 180                         join(' ', $l->{address}, $l->{platform}, $l->{board}, $l->{version} ),
 181                 );
 182
 183                 ( $v[1], $v[3] ) = mac2name( $v[1], $v[3] );
 184
 185                 print "$name ", join(' | ', @v), $/;
 186                 print $n_fh "$name\t", join("\t", @v ), "\n";
 187                 print $html_fh "<tr><td>$name</td><td>", join("</td><td>", @v ), "</td></tr>\n";
 188         }
 189 }
 190
 191 print $html_fh qq{</table>\n};