8 # usage: NAME_MAC=/dev/shm/file-with-name-space-mac sbw-parse.pl [optional-switch-snmpbulkwalk-dump]
10 # cat /dev/shm/neighbors.tab | grep MikroTik | tee /dev/stderr | awk '{ print $7 "_" $8 " " $3 }' > /tmp/name-mac
11 # NAME_MAC=/tmp/name-mac ./sbw-parse.pl
13 use Data::Dump qw(dump);
17 my $debug = $ENV{DEBUG} || 0;
19 my @cols = qw( ifName ifHighSpeed ifAdminStatus ifOperStatus ifType dot1dStpPortPathCost ifAlias );
21 my @name_mac_files = ( qw( /dev/shm/sw-name-mac /dev/shm/wap-name-mac ), $ENV{NAME_MAC}, glob '/dev/shm/name-mac*' );
25 foreach my $name_mac ( @name_mac_files ) {
26 next unless -e $name_mac;
27 open(my $f, '<'. $name_mac);
31 #my ( $ip, $name, $mac ) = split(/ /,$_);
32 my ( $name, $mac ) = split(/ /,$_);
34 $mac2name->{$mac} = $name;
35 $mac_name_use->{$name} = 0;
38 warn "## $name_mac $count";
42 my ( $mac, $name ) = @_;
46 if ( exists $mac2name->{$mac} ) {
47 my $mac_name = $mac2name->{$mac};
48 warn "ERROR: name different $name != $mac_name" if $name && $name ne $mac_name;
49 return ( $mac, $mac_name );
51 return ( $mac, $name );
54 warn "# mac2name = ",dump($mac2name) if $debug;
62 $mac =~ s/^([0-9a-f]):/0$1:/;
63 while ( $mac =~ s/:([0-9a-f]):/:0$1:/g ) {};
64 $mac =~ s/:([0-9a-f])$/:0$1/;
69 sub sw_name_mac_port {
70 my ( $name, $mac, $port ) = @_;
72 if ( exists $mac2name->{$mac} ) {
73 my $sw_name = $mac2name->{$mac};
74 $sw->{$name}->{port_for_switch}->{$port}->{ $sw_name }++;
75 #print "## $name $port $sw_name\n";
79 my $gv; # collect for graphviz
82 @files = glob('snmpbulkwalk/*') unless @files;
84 foreach my $file ( @files ) {
85 my ( undef, $name ) = split(/\//, $file);
86 print "# $name $file\n" if $debug;
88 if ( -s "/dev/shm/$file" ) {
89 if ( -M $file < -M "/dev/shm/$file" ) {
90 warn "UPDATE $file\n";
91 system "cp -pv /dev/shm/$file $file";
93 $file="/dev/shm/$file";
95 warn "WARNING: using old file $file\n";
98 open(my $f, '<', $file);
101 if ( m/::(sysName|sysLocation|ipDefaultTTL|dot1dStpPriority|dot1dStpTopChanges|dot1dStpDesignatedRoot|dot1dStpRootCost|dot1dStpRootPort|dot1qNumVlans)\./ ) {
102 my ( undef, $v ) = split(/ = \w+: /,$_,2);
103 $sw->{$name}->{$1} = $v;
104 } elsif ( m/::(ifMtu|ifHighSpeed|ifSpeed)\[(\d\d?)\] = (?:INTEGER|Gauge32): (\d+)/ ) {
105 $sw->{$name}->{$1}->[$2] = $3;
106 # Dell PowerConnect 5548 doeesn't have ifHighSpeed
107 if ( $1 eq 'ifSpeed' && ! exists $sw->{$name}->{'ifHighSpeed'}->[$2] ) {
108 $sw->{$name}->{'ifHighSpeed'}->[$2] = $3 / 1_000_000;
110 } elsif ( m/::(ifPhysAddress)\[(\d\d?)\] = STRING: ([0-9a-f:]+)/ ) {
111 $sw->{$name}->{$1}->[$2] = fix_mac($3);
112 } elsif ( m/::(ifDescr|ifName|ifAlias)\[(\d\d?)\] = STRING: (.+)/ ) {
113 $sw->{$name}->{$1}->[$2] = $3;
114 if ( $1 eq 'ifName' ) {
115 my ( $if_name, $port ) = ($3,$2);
116 $sw->{$name}->{port_name_to_number}->{$if_name} = $port;
118 if ( $1 eq 'ifDescr' ) { # some switches miss ifName
119 my ( $if_name, $port ) = ($3,$2);
120 $if_name =~ s/gigabitethernet/ge/;
121 $if_name =~ s/tengigabitethernet/te/;
122 $sw->{$name}->{'ifName'}->[$port] = $if_name
123 if ( ! exists $sw->{name}->{'ifName'} );
124 $sw->{$name}->{port_name_to_number}->{$if_name} = $port
125 if ( ! exists $sw->{$name}->{port_name_to_number}->{$if_name} );
127 } elsif ( m/::(ifAdminStatus|ifOperStatus|ifType|dot3StatsDuplexStatus)\[(\d\d?)\] = INTEGER: (\w+)\(/ ) {
128 $sw->{$name}->{$1}->[$2] = $3;
129 } elsif ( m/::(dot1dStpPortPathCost)\[(\d\d?)\] = INTEGER: (\d+)/ ) {
130 $sw->{$name}->{$1}->[$2] = $3;
131 } elsif ( m/::(dot1dTpFdbPort)\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
132 $sw->{$name}->{$1}->{ fix_mac($2) } = $3;
133 sw_name_mac_port( $name, $2, $3 );
134 } elsif ( m/::(dot1qTpFdbPort)\[(\d+)\]\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
135 $sw->{$name}->{$1}->{ fix_mac($3) } = [ $4, $2 ]; # port, vlan
136 sw_name_mac_port( $name, $3, $4 );
139 # dot1qVlanCurrentEgressPorts
140 # dot1qVlanCurrentUntaggedPorts
141 # dot1qVlanStaticName
142 # dot1qVlanStaticEgressPorts
143 # dot1qVlanStaticUntaggedPorts
151 warn "# sw $name = ",dump($sw->{$name}) if $debug;
153 foreach my $port ( 1 .. $#{ $sw->{$name}->{ifDescr} } ) {
155 foreach my $oid ( @cols ) {
156 if ( $oid eq 'ifAlias' ) {
157 if ( defined( $sw->{$name}->{$oid}->[$port] ) ) {
158 print " [",$sw->{$name}->{$oid}->[$port],"]";
160 } elsif ( defined $sw->{$name}->{$oid}->[$port] ) {
161 print " ", $sw->{$name}->{$oid}->[$port];
164 #warn "MISSING $name $oid $port\n";
168 if ( exists( $sw->{$name}->{port_for_switch}->{ $port } ) ) {
169 my @visible = sort keys %{ $sw->{$name}->{port_for_switch}->{ $port } };
170 print " ",join(',', @visible);
172 if ( scalar @visible == 1 ) {
173 $gv->{$name}->{$port}->{ $visible[0] }->{ 'no_port' } = [$port,0]; # no port
181 # read neighbour visibility from lldp
184 my ($name,$port) = @_;
186 return $port if $port =~ m/^\d+$/;
187 $port =~ s{bridge\d*/}{}; # remove mikrotik port prefix
188 $port =~ s{,bridge\d*$}{}; # remove mikrotik port suffix
189 $port =~ s{,bonding\d*$}{}; # remove mikrotik port suffix
191 if ( exists $sw->{$name}->{port_name_to_number}->{$port} ) {
192 return $sw->{$name}->{port_name_to_number}->{$port};
195 # gigabitethernet1/0/45 or gi1/0/45
196 if ( $port =~ m{(.+)1/0/(\d+)$} ) {
197 my ($type,$port) = ($1,$2);
198 if ( $type =~ m{gi}i ) {
200 } elsif ( $type =~ m{te}i ) {
201 return $port <= 4 ? $port + 10000 : $port;
203 die "unknown [$type]";
208 if ( $port =~ m{eth(\d+)} ) {
212 my @fuzzy = grep { m/^$port/ } keys %{ $sw->{$name}->{port_name_to_number} };
213 if ( scalar @fuzzy == 1 ) {
214 return $sw->{$name}->{port_name_to_number}->{$fuzzy[0]}
217 warn "ERROR [$_] can't find port $port for $name in ",dump( $sw->{$name}->{port_name_to_number} );
222 if ( $name eq 'rack3-lib' ) {
223 $name = 'sw-lib-srv';
229 open(my $n_fh, '<', '/dev/shm/neighbors.tab');
232 my ( $sw1, $port1, undef, $port2, $sw2, undef ) = split(/\t/, $_, 6 );
233 next if $port2 =~ m/:/; # skip mac in port number (wap lldp leek)
234 next unless $sw2 && $port2;
235 $sw1 = fix_sw_name($sw1);
236 my $port1_nr = port2number( $sw1, $port1 );
237 my $port2_nr = port2number( $sw2, $port2 );
239 if ( $sw->{$sw1}->{ifType}->[$port1_nr] ne 'ethernetCsmacd' ) {
240 warn "SKIP $sw1 $port1_nr $sw->{$sw1}->{ifType}->[$port1_nr]\n";
242 } elsif ( $port1 =~ m{bridge} ) { # skip mikrotik bridges
243 # warn "SKIP $sw1 $port1_nr $port1\n";
247 $gv->{$sw1}->{$port1_nr}->{$sw2}->{$port2_nr} = [ $port1, $port2 ];
248 delete $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'} if exists $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'};
251 # FIXME sw-b101 doesn't have lldp so we insert data here manually from pictures
253 my ($sw1, $p1, $sw2, $p2) = @_;
254 $gv->{$sw1}->{$p1}->{$sw2}->{$p2} = [ $p1, $p2 ];
255 $gv->{$sw2}->{$p2}->{$sw1}->{$p1} = [ $p2, $p1 ];
257 delete $gv->{'sw-b101'};
258 fake_gv( 'sw-b101' => 3, 'sw-b101' => 4 ); # vlan1-to-vlan2 / vlan2-to-vlan1
260 fake_gv( 'sw-b101' => 21, 'sw-rack2' => 50 );
261 fake_gv( 'sw-b101' => 23, 'sw-lib-srv' => 48 );
262 fake_gv( 'sw-b101' => 24, 'sw-rack1' => 48 );
264 #delete $gv->{'sw-ganeti'};
265 # spf-16 -> "sw-rack2" => { 2 => ["16-sfp-uplink-b101,bridge", "te1/0/2"] },
267 print "# gv = ",dump( $gv );
269 open(my $dot_fh, '>', '/dev/shm/network.dot');
272 graph [ rankdir = LR ]
273 node [ shape = record ]
274 edge [ color = "gray" ]
280 foreach my $sw1 ( sort keys %$gv ) {
281 foreach my $p1 ( sort { $a <=> $b } keys %{ $gv->{$sw1} } ) {
282 foreach my $sw2 ( sort keys %{ $gv->{$sw1}->{$p1} } ) {
283 if ( $sw1 eq $sw2 ) {
284 warn "SKIP same switch $sw1 == $sw2\n";
287 #push @{ $node->{$sw1} }, [ $p1, $sw2 ];
288 foreach my $p2 ( keys %{ $gv->{$sw1}->{$p1}->{$sw2} } ) {
289 push @edges, [ $sw1, $sw2, $p1, $p2 ];
290 ##push @{ $node->{$sw2} }, [ $p2, $sw1 ];
291 push @{ $node->{$sw1} }, [ $p1, $sw2, $p2 ];
297 foreach my $n ( sort keys %$node ) {
300 sort { join(' ',@$a) <=> join(' ',@$b) }
302 print $dot_fh qq!"$n" [ label="!.uc($n).'|' . join('|', map {
303 $mac_name_use->{$_->[1]}++;
304 sprintf "<%d>%2d %s%s", $_->[0], $_->[0], $_->[1], $_->[2] eq 'no_port' ? '' : ' ' . $_->[2]
305 } @port_sw ) . qq!" ];\n!;
308 foreach my $e ( sort { join(' ',@$a) cmp join(' ', @$b) } @edges ) {
310 if ( $e->[3] == 0 ) {
311 print $dot_fh sprintf qq{ "%s":%d -> "%s"\n}, $e->[0], $e->[2], $e->[1];
313 print $dot_fh sprintf qq{ "%s":%d -> "%s":%d\n}, $e->[0], $e->[2], $e->[1], $e->[3];
320 $file =~ s{/dev/shm/}{} && warn "## git_commit $file";
321 system qq{git -C /dev/shm add -f $file && git -C /dev/shm commit -m "\$( date +%Y-%m-%d ) $file" $file };
324 warn "## mac_name_use ",dump( $mac_name_use );
326 my @mac_name_use_zero = sort grep { $mac_name_use->{$_} == 0 } keys %$mac_name_use;
327 warn "# mac_name_use_zero=",dump( \@mac_name_use_zero );
328 open(my $zero_fh, '>', '/dev/shm/mac_name_use.0');
329 print $zero_fh "$_\n" foreach map {
330 s/^msw_//; $_; # remote msw_ prefix and leave only mac
331 } @mac_name_use_zero;
333 git_commit 'mac_name_use.0';
339 git_commit 'network.dot';
341 system "dot -Tsvg /dev/shm/network.dot > /var/www/network.svg";
342 #system 'git -C /dev/shm commit -m $( date +%Y-%m-%d ) network.dot' if ! $debug;
344 warn "# strange neihbours:";
345 system "grep -f /dev/shm/mac_name_use.0 /dev/shm/neighbors.tab";