12 die "Usage: $0 [--debug] [--mac] [--allmac] <ip-addr>\n";
21 'allmac' => \$all_mac,
25 my ($switch_ip) = @ARGV;
26 my $community = 'public';
29 my $is_tty = -t STDOUT;
32 return $is_tty ? `tput $a` : "";
34 my $t_red = attr("setaf 1");
35 my $t_green = attr("setaf 2");
36 my $t_yellow = attr("setaf 3");
37 my $t_magenta = attr("setaf 5");
38 my $t_norm = attr("sgr0");
40 my ($snmp, $err) = Net::SNMP->session(
41 -hostname => $switch_ip,
43 -community => $community,
45 $snmp or die "Cannot establish session: $err\n";
51 for my $c (keys %$cols) {
52 my $depth = split /\./, $cols->{$c};
53 my $t = $snmp->get_table(-baseoid => $cols->{$c}) or next;
54 for my $k (keys %$t) {
55 my @k = split /\./, $k;
56 my $kk = join('.', @k[$depth..$#k]);
57 $tab->{$kk}->{$c} = $t->{$k};
68 $d = int($t/86400) . " days, ";
71 return $d . sprintf "%02d:%02d:%02d", int($t/3600), int(($t%3600)/60), $t%60;
74 my $OID_basic = '1.3.6.1.2.1.1';
76 my $basics = my_get_table({
77 'desc' => "$OID_basic.1",
78 'uptime' => "$OID_basic.3",
79 'contact' => "$OID_basic.4",
80 'name' => "$OID_basic.5",
81 'location' => "$OID_basic.6",
83 print Dumper($basics) if $debug;
84 my $bas = $basics->{0} or die "Cannot find basic info";
86 print "### Basics ###\n\n";
87 print "Device: ", $bas->{desc}, "\n";
88 print "Uptime: ", format_uptime($bas->{uptime}), "\n";
89 print "Contact: ", $bas->{contact}, "\n";
90 print "Name: ", $bas->{name}, "\n";
91 print "Location: ", $bas->{location}, "\n";
93 my $OID_ifTable = '1.3.6.1.2.1.2.2';
94 my $OID_ifTablev2 = '1.3.6.1.2.1.31.1.1';
96 my $if_table = my_get_table({
97 'desc' => "$OID_ifTable.1.2",
98 'speed' => "$OID_ifTable.1.5",
99 'mac' => "$OID_ifTable.1.6",
100 'admin' => "$OID_ifTable.1.7",
101 'oper' => "$OID_ifTable.1.8",
102 'name' => "$OID_ifTablev2.1.1",
103 'hispeed' => "$OID_ifTablev2.1.15",
104 'alias' => "$OID_ifTablev2.1.18",
107 for my $if (values %$if_table) {
108 $if->{mac} = join(':', map { sprintf "%02x", ord $_ } split(//, $if->{mac}));
109 $if_macs{$if->{mac}} = 1;
111 print Dumper($if_table) if $debug;
112 my @ifaces = sort { $a <=> $b } keys %$if_table;
113 print "MAC addr: ", join(" ", sort keys %if_macs), "\n";
115 my $OID_ipTable = '1.3.6.1.2.1.4.20';
116 my $ip_table = my_get_table({
117 'iface' => "$OID_ipTable.1.2",
118 'mask' => "$OID_ipTable.1.3",
120 print Dumper($ip_table) if $debug;
122 # XXX: IPv6 not supported yet
123 for my $ipa (keys %$ip_table) {
124 my $ip = $ip_table->{$ipa};
125 my $if = $if_table->{$ip->{iface}} or die "IP table refers to unknown iface";
126 my $nm = Net::Netmask->new2($ipa, $ip->{mask}) or die "Cannot parse IP prefix";
127 push @{$if->{ip_addrs}}, $ipa . '/' . $nm->bits;
129 print Dumper($if_table) if $debug;
132 my $OID_1qTpFdbTable = '1.3.6.1.2.1.17.7.1.2.2';
133 my $OID_1qPort = "$OID_1qTpFdbTable.1.2";
134 my $OID_1qStatus = "$OID_1qTpFdbTable.1.3";
135 my $vlan_fdb_table = my_get_table({
136 'port' => $OID_1qPort,
137 'status' => $OID_1qStatus,
139 print Dumper($vlan_fdb_table) if $debug;
141 for my $m (keys %$vlan_fdb_table) {
142 my $fdb = $vlan_fdb_table->{$m};
143 $fdb->{status} == 3 or next; # Only learned MACs
144 my $port = $if_table->{$fdb->{port}} or die "Forwarding DB refers to unknown iface";
145 my @m = split /\./, $m;
147 my $mac = join(':', map { sprintf('%02x', $_) } @m);
148 push @{$port->{macs}}, $mac;
150 for my $if (values %$if_table) {
152 $if->{macs} = [ sort(List::Util::uniq(@{$if->{macs}})) ];
156 my $OID_VlanStaticTable = '1.3.6.1.2.1.17.7.1.4.3';
157 my $vlan_table = my_get_table({
158 'name' => "$OID_VlanStaticTable.1.1",
159 'egress-ports' => "$OID_VlanStaticTable.1.2",
160 'untagged-ports' => "$OID_VlanStaticTable.1.4",
161 'row-status' => "$OID_VlanStaticTable.1.5",
163 for my $vlan (values %$vlan_table) {
164 for my $k ('egress-ports', 'untagged-ports') {
165 $vlan->{$k} = [ split //, unpack("B*", $vlan->{$k} // "") ];
168 print Dumper($vlan_table) if $debug;
169 my @vlans = sort { $a <=> $b } grep { $vlan_table->{$_}->{'row-status'} == 1 } keys %$vlan_table;
171 print "\n### VLANs ###\n\n";
173 for my $vid (@vlans) {
174 printf "%-4d %s\n", $vid, $vlan_table->{$vid}->{'name'} // '-';
177 print "No VLAN support.\n";
180 print "\n### Ports ###\n\n";
181 # XXX: We assume that 802.1d switch ports IDs are equal to interface IDs
182 for my $port (@ifaces) {
183 my $if = $if_table->{$port};
185 my $scolor = $t_norm;
186 if ($if->{'admin'} != 1) {
188 } elsif ($if->{'oper'} != 1) {
195 my $speed = $if->{hispeed} || int($if->{speed} / 1000000);
198 } elsif ($speed < 1000) {
199 $speed = "${speed}M";
201 $speed = int($speed/1000);
202 $speed = "${speed}G";
204 printf "%-4d %-15.15s %s%-4s %-5s %s%-20s%s", $port, $if->{name}, $scolor, $state, $speed, $t_yellow, $if->{alias}, $t_norm;
209 my @macs = @{$if->{macs} // []};
211 $show_mac = $macs[0];
212 $more_macs = "${t_yellow}+${t_norm}" if @macs > 1;
214 printf "%-17s%s ", $show_mac, $more_macs;
217 for my $vid (@vlans) {
218 my $vlan = $vlan_table->{$vid};
219 if ($vlan->{'egress-ports'}->[$port]) {
220 if ($vlan->{'untagged-ports'}->[$port]) {
221 if ($t_green ne "") {
222 print " ${t_green}${vid}${t_norm}";
234 if ($if->{ip_addrs}) {
235 print "${t_yellow} IP: ", join(" ", @{$if->{ip_addrs}}), "${t_norm}\n";
239 print "${t_yellow} Local MAC: ", $if->{mac}, "${t_norm}\n";
242 for my $m (@{$if->{macs}}) {
243 print "${t_magenta} MAC: $m${t_norm}\n";