experimental ASA ARP collector

Netdisco/lib/App/Netdisco/SSHCollector/Platform/ASA.pm

@@ -0,0 +1,75 @@
+package App::Netdisco::SSHCollector::Platform::ASA;
+
+
+=head1 NAME
+
+App::Netdisco::SSHCollector::Platform::ASA
+
+=head1 DESCRIPTION
+
+Collect ARP entries from Cisco ASA devices.
+
+=cut
+
+use strict;
+use warnings;
+
+use Dancer ':script';
+use Expect;
+use Moo;
+
+=head1 PUBLIC METHODS
+
+=over 4
+
+=item B<arpnip($host, $ssh)>
+
+Retrieve ARP entries from device. C<$host> is the hostname or IP address
+of the device. C<$ssh> is a Net::OpenSSH connection to the device.
+
+Returns an array of hashrefs in the format { mac => MACADDR, ip => IPADDR }.
+
+=cut
+
+sub arpnip {
+    my ($self, $hostlabel, $ssh, @args) = @_;
+
+    debug "$hostlabel $$ arpnip()";
+
+    my ($pty, $pid) = $ssh->open2pty or die "unable to run remote command";
+    my $expect = Expect->init($pty);
+
+    my ($pos, $error, $match, $before, $after);
+    my $prompt = qr/#/;
+
+    ($pos, $error, $match, $before, $after) = $expect->expect(10, -re, $prompt);
+
+    $expect->send("terminal length 2147483647\n");
+    ($pos, $error, $match, $before, $after) = $expect->expect(5, -re, $prompt);
+
+    $expect->send("show arp\n");
+    ($pos, $error, $match, $before, $after) = $expect->expect(60, -re, $prompt);
+
+    my @arpentries = ();
+    my @lines = split m/\n/, $before;
+
+    # ifname 192.168.148.99 0022.1925.9305 347
+    foreach my $line (@lines) {
+        my @parts = split m/\n/, $line;
+        my ($ip, $mac) = ($1, $2);
+
+        if ($ip and $mac and
+            $ip =~ m/(\d{1,3}\.){3}\d{1,3}/ and
+            $mac =~ m/[0-9a-f.]+/i) {
+
+            push @arpentries, { ip => $ip, mac => $mac };
+        }
+    }
+
+    $expect->send("exit\n");
+    $expect->soft_close();
+
+    return @arpentries;
+}
+
+1;