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 );
25 my $mac2name = $name2mac::mac2name;
28 my ( $mac, $name ) = @_;
32 if ( exists $mac2name->{$mac} ) {
33 my $mac_name = $mac2name->{$mac};
34 warn "ERROR: name different $name != $mac_name" if $name && $name ne $mac_name;
35 return ( $mac, $mac_name );
37 return ( $mac, $name );
48 $mac =~ s/^([0-9a-f]):/0$1:/;
49 while ( $mac =~ s/:([0-9a-f]):/:0$1:/g ) {};
50 $mac =~ s/:([0-9a-f])$/:0$1/;
55 sub sw_name_mac_port {
56 my ( $name, $mac, $port ) = @_;
58 if ( exists $mac2name->{$mac} ) {
59 my $sw_name = $mac2name->{$mac};
60 $sw->{$name}->{port_for_switch}->{$port}->{ $sw_name }++;
61 #print "## $name $port $sw_name\n";
65 my $gv; # collect for graphviz
68 @files = glob('snmpbulkwalk/*') unless @files;
70 foreach my $file ( @files ) {
71 my ( undef, $name ) = split(/\//, $file);
72 print "# $name $file\n" if $debug;
74 if ( -s "/dev/shm/$file" ) {
75 if ( -M $file < -M "/dev/shm/$file" ) {
76 warn "UPDATE $file\n";
77 system "cp -pv /dev/shm/$file $file";
79 $file="/dev/shm/$file";
81 warn "WARNING: using old file $file\n";
84 open(my $f, '<', $file);
87 if ( m/::(sysName|sysLocation|ipDefaultTTL|dot1dStpPriority|dot1dStpTopChanges|dot1dStpDesignatedRoot|dot1dStpRootCost|dot1dStpRootPort|dot1qNumVlans)\./ ) {
88 my ( undef, $v ) = split(/ = \w+: /,$_,2);
89 $sw->{$name}->{$1} = $v;
90 } elsif ( m/::(ifMtu|ifHighSpeed|ifSpeed)\[(\d\d?)\] = (?:INTEGER|Gauge32): (\d+)/ ) {
91 $sw->{$name}->{$1}->[$2] = $3;
92 # Dell PowerConnect 5548 doeesn't have ifHighSpeed
93 if ( $1 eq 'ifSpeed' && ! exists $sw->{$name}->{'ifHighSpeed'}->[$2] ) {
94 $sw->{$name}->{'ifHighSpeed'}->[$2] = $3 / 1_000_000;
96 } elsif ( m/::(ifPhysAddress)\[(\d\d?)\] = STRING: ([0-9a-f:]+)/ ) {
97 $sw->{$name}->{$1}->[$2] = fix_mac($3);
98 } elsif ( m/::(ifDescr|ifName|ifAlias)\[(\d\d?)\] = STRING: (.+)/ ) {
99 $sw->{$name}->{$1}->[$2] = $3;
100 if ( $1 eq 'ifName' ) {
101 my ( $if_name, $port ) = ($3,$2);
102 $sw->{$name}->{port_name_to_number}->{$if_name} = $port;
104 if ( $1 eq 'ifDescr' ) { # some switches miss ifName
105 my ( $if_name, $port ) = ($3,$2);
106 $if_name =~ s/gigabitethernet/ge/;
107 $if_name =~ s/tengigabitethernet/te/;
108 $sw->{$name}->{'ifName'}->[$port] = $if_name
109 if ( ! exists $sw->{name}->{'ifName'} );
110 $sw->{$name}->{port_name_to_number}->{$if_name} = $port
111 if ( ! exists $sw->{$name}->{port_name_to_number}->{$if_name} );
113 } elsif ( m/::(ifAdminStatus|ifOperStatus|ifType|dot3StatsDuplexStatus)\[(\d\d?)\] = INTEGER: (\w+)\(/ ) {
114 $sw->{$name}->{$1}->[$2] = $3;
115 } elsif ( m/::(dot1dStpPortPathCost)\[(\d\d?)\] = INTEGER: (\d+)/ ) {
116 $sw->{$name}->{$1}->[$2] = $3;
117 } elsif ( m/::(dot1dTpFdbPort)\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
118 $sw->{$name}->{$1}->{ fix_mac($2) } = $3;
119 sw_name_mac_port( $name, $2, $3 );
120 } elsif ( m/::(dot1qTpFdbPort)\[(\d+)\]\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
121 $sw->{$name}->{$1}->{ fix_mac($3) } = [ $4, $2 ]; # port, vlan
122 sw_name_mac_port( $name, $3, $4 );
125 # dot1qVlanCurrentEgressPorts
126 # dot1qVlanCurrentUntaggedPorts
127 # dot1qVlanStaticName
128 # dot1qVlanStaticEgressPorts
129 # dot1qVlanStaticUntaggedPorts
137 warn "# sw $name = ",dump($sw->{$name}) if $debug;
139 foreach my $port ( 1 .. $#{ $sw->{$name}->{ifDescr} } ) {
141 foreach my $oid ( @cols ) {
142 if ( $oid eq 'ifAlias' ) {
143 if ( defined( $sw->{$name}->{$oid}->[$port] ) ) {
144 print " [",$sw->{$name}->{$oid}->[$port],"]";
146 } elsif ( defined $sw->{$name}->{$oid}->[$port] ) {
147 print " ", $sw->{$name}->{$oid}->[$port];
150 #warn "MISSING $name $oid $port\n";
154 if ( exists( $sw->{$name}->{port_for_switch}->{ $port } ) ) {
155 my @visible = sort keys %{ $sw->{$name}->{port_for_switch}->{ $port } };
156 print " ",join(',', @visible);
158 if ( scalar @visible == 1 ) {
159 $gv->{$name}->{$port}->{ $visible[0] }->{ 'no_port' } = [$port,0]; # no port
167 # read neighbour visibility from lldp
170 my ($name,$port) = @_;
172 return $port if $port =~ m/^\d+$/;
173 $port =~ s{bridge\d*/}{}; # remove mikrotik port prefix
174 $port =~ s{,bridge\d*$}{}; # remove mikrotik port suffix
175 $port =~ s{,bonding\d*$}{}; # remove mikrotik port suffix
177 if ( exists $sw->{$name}->{port_name_to_number}->{$port} ) {
178 return $sw->{$name}->{port_name_to_number}->{$port};
181 # gigabitethernet1/0/45 or gi1/0/45
182 if ( $port =~ m{(.+)1/0/(\d+)$} ) {
183 my ($type,$port) = ($1,$2);
184 if ( $type =~ m{gi}i ) {
186 } elsif ( $type =~ m{te}i ) {
187 return $port <= 4 ? $port + 10000 : $port;
189 die "unknown [$type]";
194 if ( $port =~ m{eth(\d+)} ) {
198 my @fuzzy = grep { m/^$port/ } keys %{ $sw->{$name}->{port_name_to_number} };
199 if ( scalar @fuzzy == 1 ) {
200 return $sw->{$name}->{port_name_to_number}->{$fuzzy[0]}
203 warn "ERROR [$_] can't find port $port for $name in ",dump( $sw->{$name}->{port_name_to_number} );
208 if ( $name eq 'rack3-lib' ) {
209 $name = 'sw-lib-srv';
215 open(my $n_fh, '<', '/dev/shm/neighbors.tab');
218 my ( $sw1, $port1, undef, $port2, $sw2, undef ) = split(/\t/, $_, 6 );
219 next if $port2 =~ m/:/; # skip mac in port number (wap lldp leek)
220 next unless $sw2 && $port2;
221 $sw1 = fix_sw_name($sw1);
222 my $port1_nr = port2number( $sw1, $port1 );
223 my $port2_nr = port2number( $sw2, $port2 );
225 if ( $sw->{$sw1}->{ifType}->[$port1_nr] ne 'ethernetCsmacd' ) {
226 warn "SKIP $sw1 $port1_nr $sw->{$sw1}->{ifType}->[$port1_nr]\n";
228 } elsif ( $port1 =~ m{bridge} ) { # skip mikrotik bridges
229 # warn "SKIP $sw1 $port1_nr $port1\n";
233 $gv->{$sw1}->{$port1_nr}->{$sw2}->{$port2_nr} = [ $port1, $port2 ];
234 delete $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'} if exists $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'};
237 # FIXME sw-b101 doesn't have lldp so we insert data here manually from pictures
239 my ($sw1, $p1, $sw2, $p2) = @_;
240 $gv->{$sw1}->{$p1}->{$sw2}->{$p2} = [ $p1, $p2 ];
241 $gv->{$sw2}->{$p2}->{$sw1}->{$p1} = [ $p2, $p1 ];
243 delete $gv->{'sw-b101'};
244 fake_gv( 'sw-b101' => 3, 'sw-b101' => 4 ); # vlan1-to-vlan2 / vlan2-to-vlan1
246 fake_gv( 'sw-b101' => 21, 'sw-rack2' => 50 );
247 fake_gv( 'sw-b101' => 23, 'sw-lib-srv' => 48 );
248 fake_gv( 'sw-b101' => 24, 'sw-rack1' => 48 );
250 #delete $gv->{'sw-ganeti'};
251 # spf-16 -> "sw-rack2" => { 2 => ["16-sfp-uplink-b101,bridge", "te1/0/2"] },
253 print "# gv = ",dump( $gv );
255 open(my $dot_fh, '>', '/dev/shm/network.dot');
258 graph [ rankdir = LR ]
259 node [ shape = record; fontname="Helvetica" ]
260 edge [ color = "gray" ]
266 foreach my $sw1 ( sort keys %$gv ) {
267 foreach my $p1 ( sort { $a <=> $b } keys %{ $gv->{$sw1} } ) {
268 foreach my $sw2 ( sort keys %{ $gv->{$sw1}->{$p1} } ) {
269 if ( $sw1 eq $sw2 ) {
270 warn "SKIP same switch $sw1 == $sw2\n";
273 #push @{ $node->{$sw1} }, [ $p1, $sw2 ];
274 foreach my $p2 ( keys %{ $gv->{$sw1}->{$p1}->{$sw2} } ) {
275 push @edges, [ $sw1, $sw2, $p1, $p2 ];
276 ##push @{ $node->{$sw2} }, [ $p2, $sw1 ];
277 push @{ $node->{$sw1} }, [ $p1, $sw2, $p2 ];
283 foreach my $n ( sort keys %$node ) {
286 sort { join(' ',@$a) <=> join(' ',@$b) }
288 print $dot_fh qq!"$n" [ label="!.uc($n).'|' . join('|', map {
289 $mac_name_use->{$_->[1]}++;
290 sprintf "<%d>%2d %s%s", $_->[0], $_->[0], $_->[1], $_->[2] eq 'no_port' ? '' : ' ' . $_->[2]
291 } @port_sw ) . qq!" ];\n!;
294 foreach my $e ( sort { join(' ',@$a) cmp join(' ', @$b) } @edges ) {
296 if ( $e->[3] == 0 ) {
297 #print $dot_fh sprintf qq{ "%s":%d -> "%s"\n}, $e->[0], $e->[2], $e->[1];
299 print $dot_fh sprintf qq{ "%s":%d -> "%s":%d\n}, $e->[0], $e->[2], $e->[1], $e->[3];
306 $file =~ s{/dev/shm/}{} && warn "## git_commit $file";
307 system qq{git -C /dev/shm add -f $file && git -C /dev/shm commit -m "\$( date +%Y-%m-%d ) $file" $file };
310 warn "## mac_name_use ",dump( $mac_name_use );
312 my @mac_name_use_zero = sort grep { $mac_name_use->{$_} == 0 } keys %$mac_name_use;
313 warn "# mac_name_use_zero=",dump( \@mac_name_use_zero );
314 open(my $zero_fh, '>', '/dev/shm/mac_name_use.0');
315 print $zero_fh "$_\n" foreach map {
316 s/^\w+\s//; $_; # remote msw_ prefix and leave only mac
317 } @mac_name_use_zero;
319 git_commit 'mac_name_use.0';
325 git_commit 'network.dot';
327 system "dot -Tsvg /dev/shm/network.dot > /var/www/network.svg";
328 #system 'git -C /dev/shm commit -m $( date +%Y-%m-%d ) network.dot' if ! $debug;
330 warn "# strange neihbours:";
331 system "grep -f /dev/shm/mac_name_use.0 /dev/shm/neighbors.tab";