ids-functions.pl: Add get_aliases()

[ipfire-2.x.git] / config / cfgroot / ids-functions.pl

diff --git a/config/cfgroot/ids-functions.pl b/config/cfgroot/ids-functions.pl
index efe89b512f6f4530fae6c2eac23b2e14a8d0f267..114d5763db0246cb735038088d21f09fb5ee29f0 100644 (file)
--- a/config/cfgroot/ids-functions.pl
+++ b/config/cfgroot/ids-functions.pl
@@ -841,4 +841,50 @@ sub set_ownership($) {
                chown($uid, $gid, "$target");
        }
 }
+
+#
+## Function to read-in the aliases file and returns all configured and enabled aliases.
+#
+sub get_aliases() {
+       # Location of the aliases file.
+       my $aliases_file = "${General::swroot}/ethernet/aliases";
+
+       # Array to store the aliases.
+       my @aliases;
+
+       # Check if the file is empty.
+       if (-z $aliases_file) {
+               # Abort nothing to do.
+               return;
+       }
+
+       # Open the aliases file.
+       open(ALIASES, $aliases_file) or die "Could not open $aliases_file. $!\n";
+
+       # Loop through the file content.
+       while (my $line = <ALIASES>) {
+               # Remove newlines.
+               chomp($line);
+
+               # Splitt line content into single chunks.
+               my ($address, $state, $remark) = split(/\,/, $line);
+
+               # Check if the state of the current processed alias is "on".
+               if ($state eq "on") {
+                       # Check if the address is valid.
+                       if(&Network::check_ip_address($address)) {
+                               # Add the alias to the array of aliases.
+                               push(@aliases, $address);
+                       }
+               }
+       }
+
+       # Close file handle.
+       close(ALIASES);
+
+       # Return the array.
+       return @aliases;
+}
+
+
 1;