Subversion Repositories camp_sysinfo_client_3

#!/usr/bin/env perl

use warnings;

use strict;  

use version ; our $VERSION = 'v1.2.0';

# BSD network module for sysinfo client

# Author: R. W. Rodolico

# Date:   2016-04-08

#

# module to get network interface information for BSD systems

# assumes ifconfig is on the system and executable by the user

# NOTE: this takes the ifconfig output and parses it, so changes to 

#       this output invalidates this module

#

# Revision History

#

#

# find our location and use it for searching for libraries. library.pm must be in the same directory as the calling script

# or, if run interactively, in the parent of the modules

BEGIN {

   use FindBin;

   use File::Spec;

   # prepend the bin directory and its parent

   use lib File::Spec->catdir($FindBin::Bin), File::Spec->catdir("$FindBin::Bin/..");

   eval( 'use library;' );

   die sprintf( "Could not find library.pm in %s, INC is %s\n", __FILE__, join( "\n", @INC ) ) if $@;

}

#####

##### Change these to match your needs

#####

# Make this a list of all the modules we are going to use. You can replace undef with the version you need, if you like

my $modulesList = {

        'Data::Dumper'     => undef,

   };

# hash of commands that are needed for the system. key is the name of the command and, in some cases, the value will become

# the full path (from which or where)

my $commandsList = {

        'ifconfig' => undef,

   };

# list of operating systems this module can be used on.

my $osList = {

#         'mswin32' => undef,

         'freebsd' => undef,

#         'linux'   => undef,

   };

# the category the return data should go into. See sysinfo for a list

my $CATEGORY = 'network';

#####

##### End of required

#####

# some variables needed for our system

my $errorPrepend = 'error: in ' . __FILE__; # this is prepended to any error messages

my @out; # temporary location for each line of output

# Try to load the modules we need. If we can not, then make a list of missing modules for error message.

for my $module ( keys %$modulesList ) {

   eval ( "use $module;" );

   push @out, "$errorPrepend Could not load $module" if $@;

}

if ( ! @out && ! checkOS ( $osList ) ) { # check if we are on an acceptible operating system

    push @out, "$errorPrepend Invalid Operating System";

}

if ( !@out && ! validCommandOnSystem ( $commandsList ) ) {

   push @out, "$errorPrepend Can not find some commands needed";

}

if ( !@out ) { # we made it, we have everything, so do the processing

   #####

   ##### Your code starts here. Remember to push all output onto @out

   #####

   # xn0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500

   # ether 00:16:3e:ff:ff:04

   my $regexHWADDR = 'ether\s+([0-9a-f:]+)';

   # inet 74.113.60.189 netmask 0xffffffc0 broadcast 74.113.60.191

   my $regexINET = 'inet\s*([0-9.]+)[^0-9].*netmask 0x([0-9a-z]+)';

   # inet6 addr: fe80::216:3eff:fe1f:ef4f/64 Scope:Link

   my $regexINET6 = 'inet6\s*([0-9a-f:]+).*prefixlen\s*(\d+)';

   # UP LOOPBACK RUNNING  MTU:16436  Metric:1

   my $regexMTU = 'mtu\s([0-9]+)';

   my $temp = qx( ifconfig );

   my @temp = split( "", $temp );

   my $currentIF;

   while ( @temp ) {

      my $line = shift @temp;

      next unless $line;

      if ( $line =~ m/^([^ ]+):/) { # if the first character is not a space, starting new entry

         $currentIF = $1;

         if ( $line =~ m/$regexMTU/i ) {

            push @out,  "$CATEGORY\t$currentIF\tmtu\t$1";

         }

      } elsif ( $line =~ m/$regexHWADDR/i ) {

         push @out,  "$CATEGORY\t$currentIF\tmac\t$1";

      } elsif ( $line =~ m/$regexINET/i ) {

         push @out,  "$CATEGORY\t$currentIF\taddress\t$1";

         push @out,  "$CATEGORY\t$currentIF\tnetmask\t$2";

      } elsif ( $line =~ m/$regexINET6/i )  {

         push @out,  "$CATEGORY\t$currentIF\tip6address\t$1";

         push @out,  "$CATEGORY\t$currentIF\tip6networkbits\t$2";

      } elsif ( $line =~ m/$regexMTU/i )  {

         push @out,  "$CATEGORY\t$currentIF\tmtu\t$1";

      }

   }

   #####

   ##### Your code ends here.

   #####

}

# If we are testing from the command line (caller is undef), print the results for debugging

print join( "\n", @out ) . "\n" unless caller;

# called by do, which has a value of the last assignment made, so make the assignment. The equivilent of a return

my $return = join( "\n", @out );