#! @PERLV_PATH@
##
## $Id: zrancid.in,v 1.11 2005/06/15 20:54:41 heas Exp $
##
## Copyright (C) 1997-2004 by Terrapin Communications, Inc.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed
## without fee for non-commerical purposes provided that this license
## remains intact and unmodified with any RANCID distribution.
##
## There is no warranty or other guarantee of fitness of this software.
## It is provided solely "as is". The author(s) disclaim(s) all
## responsibility and liability with respect to this software's usage
## or its effect upon hardware, computer systems, other software, or
## anything else.
##
## Except where noted otherwise, rancid was written by and is maintained by
## Henry Kilmer, John Heasley, Andrew Partan, Pete Whiting, and Austin Schutz.
##
#
# This version of rancid tries to deal with zebra s/w.
#
# RANCID - Really Awesome New Cisco confIg Differ
#
# usage: rancid [-d] [-l] [-f filename | $host]
#
use Getopt::Std;
getopts('dfl');
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$timeo = 90; # clogin timeout in seconds
my(@commandtable, %commands, @commands);# command lists
my(%filter_pwds); # password filtering mode
# This routine is used to print out the router configuration
sub ProcessHistory {
my($new_hist_tag,$new_command,$command_string,@string) = (@_);
if ((($new_hist_tag ne $hist_tag) || ($new_command ne $command))
&& defined %history) {
print eval "$command \%history";
undef %history;
}
if (($new_hist_tag) && ($new_command) && ($command_string)) {
if ($history{$command_string}) {
$history{$command_string} = "$history{$command_string}@string";
} else {
$history{$command_string} = "@string";
}
} elsif (($new_hist_tag) && ($new_command)) {
$history{++$#history} = "@string";
} else {
print "@string";
}
$hist_tag = $new_hist_tag;
$command = $new_command;
1;
}
sub numerically { $a <=> $b; }
# This is a sort routine that will sort numerically on the
# keys of a hash as if it were a normal array.
sub keynsort {
local(%lines) = @_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort numerically keys(%lines)) {
$sorted_lines[$i] = $lines{$key};
$i++;
}
@sorted_lines;
}
# This is a sort routine that will sort on the
# keys of a hash as if it were a normal array.
sub keysort {
local(%lines) = @_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort keys(%lines)) {
$sorted_lines[$i] = $lines{$key};
$i++;
}
@sorted_lines;
}
# This is a sort routine that will sort on the
# values of a hash as if it were a normal array.
sub valsort{
local(%lines) = @_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort values %lines) {
$sorted_lines[$i] = $key;
$i++;
}
@sorted_lines;
}
# This is a numerical sort routine (ascending).
sub numsort {
local(%lines) = @_;
local($i) = 0;
local(@sorted_lines);
foreach $num (sort {$a <=> $b} keys %lines) {
$sorted_lines[$i] = $lines{$num};
$i++;
}
@sorted_lines;
}
# This is a sort routine that will sort on the
# ip address when the ip address is anywhere in
# the strings.
sub ipsort {
local(%lines) = @_;
local($i) = 0;
local(@sorted_lines);
foreach $addr (sort sortbyipaddr keys %lines) {
$sorted_lines[$i] = $lines{$addr};
$i++;
}
@sorted_lines;
}
# These two routines will sort based upon IP addresses
sub ipaddrval {
my(@a) = ($_[0] =~ m#^(\d+)\.(\d+)\.(\d+)\.(\d+)$#);
$a[3] + 256 * ($a[2] + 256 * ($a[1] +256 * $a[0]));
}
sub sortbyipaddr {
&ipaddrval($a) <=> &ipaddrval($b);
}
# This routine parses "show version"
sub ShowVersion {
print STDERR " In ShowVersion: $_" if ($debug);
while () {
tr/\015//d;
last if(/^$prompt/);
next if(/^(\s*|\s*$cmd\s*)$/);
return(-1) if (/command authorization failed/i);
ProcessHistory("COMMENTS","keysort","B0", "!$_") && next;
}
return(0);
}
# This routine processes a "write term"
sub WriteTerm {
print STDERR " In WriteTerm: $_" if ($debug);
while () {
tr/\015//d;
last if(/^$prompt/);
return(-1) if (/command authorization failed/i);
/Non-Volatile memory is in use/ && return(-1); # NvRAM is locked
# skip the crap
if (/^(##+$|(Building|Current) configuration)/i) {
while () {
next if (/^Current configuration\s*:/i);
next if (/^([%!].*|\s*)$/);
last;
}
tr/\015//d;
}
# some versions have other crap mixed in with the bits in the
# block above
/^! Last Changed:/ && next;
# Dog gone Cool matches to process the rest of the config
# /^tftp-server flash / && next; # kill any tftp remains
# /^ntp clock-period / && next; # kill ntp clock-period
# /^ length / && next; # kill length on serial lines
# /^ width / && next; # kill width on serial lines
# /^ clockrate / && next; # kill clockrate on serial interfaces
if (/^(enable password( \d)?) / && $filter_pwds >= 1) {
ProcessHistory("ENABLE","","","!$1 \n");
next;
}
if (/^username (\S+)(\s.*)? password ((\d) \S+|\S+)/) {
if ($filter_pwds == 2) {
ProcessHistory("USER","keysort","$1","!username $1$2 password \n");
} elsif ($filter_pwds == 1 && $4 ne "5"){
ProcessHistory("USER","keysort","$1","!username $1$2 password \n");
} else {
ProcessHistory("USER","keysort","$1","$_");
}
next;
}
# prune passwords {bgp, ...}
if (/^\s*neighbor (\S*) password / && $filter_pwds >= 1) {
ProcessHistory("","","","! neighbor $1 password \n");
next;
}
# sort route-maps
if (/^route-map (\S+)/) {
my($key) = $1;
my($routemap) = $_;
while () {
tr/\015//d;
last if (/^$prompt/ || ! /^(route-map |[ !])/);
if (/^route-map (\S+)/) {
ProcessHistory("ROUTEMAP","keysort","$key","$routemap");
$key = $1;
$routemap = $_;
} else {
$routemap .= $_;
}
}
ProcessHistory("ROUTEMAP","keysort","$key","$routemap");
}
# filter out any RCS/CVS tags to avoid confusing local CVS storage
s/\$(Revision|Id):/ $1:/;
# order access-lists
/^access-list\s+(\d\d?)\s+(\S+)\s+(\S+)/ &&
ProcessHistory("ACL $1 $2","ipsort","$3","$_") && next;
# order logging statements
/^logging (\d+\.\d+\.\d+\.\d+)/ &&
ProcessHistory("LOGGING","ipsort","$1","$_") && next;
# order/prune snmp-server host statements
# we only prune lines of the form
# snmp-server host a.b.c.d
if (/^snmp-server host (\d+\.\d+\.\d+\.\d+) /) {
if (defined($ENV{'NOCOMMSTR'})) {
my($ip) = $1;
my($line) = "snmp-server host $ip";
my(@tokens) = split(' ', $');
my($token);
while ($token = shift(@tokens)) {
if ($token eq 'version') {
$line .= " " . join(' ', ($token, shift(@tokens)));
} elsif ($token =~ /^(informs?|traps?|(no)?auth)$/) {
$line .= " " . $token;
} else {
$line = "!$line " . join(' ', ("", join(' ',@tokens)));
last;
}
}
ProcessHistory("SNMPSERVERHOST","ipsort","$ip","$line\n");
} else {
ProcessHistory("SNMPSERVERHOST","ipsort","$1","$_");
}
next;
}
if (/^(snmp-server community) (\S+)/) {
if (defined($ENV{'NOCOMMSTR'})) {
ProcessHistory("SNMPSERVERCOMM","keysort","$_","!$1 $'") && next;
} else {
ProcessHistory("SNMPSERVERCOMM","keysort","$_","$_") && next;
}
}
# prune tacacs/radius server keys
if (/^(tacacs-server|radius-server) key / && $filter_pwds >= 1) {
ProcessHistory("","","","!$1 key \n"); next;
}
if (/^(tacacs-server host \S+( .*)? key) (\d )?\S+/
&& $filter_pwds >= 1) {
ProcessHistory("","","","!$1 \n"); next;
}
# order clns host statements
# /^clns host \S+ (\S+)/ &&
# ProcessHistory("CLNS","keysort","$1","$_") && next;
# prune isis password
if (/^( isis authentication-key) \d \S+/ && $filter_pwds >= 1) {
ProcessHistory("","","","!$1 $'"); next;
}
# prune msdp password
if (/^(ip msdp password \S+) / && $filter_pwds >= 1) {
ProcessHistory("","","","!$1 \n"); next;
}
# # order ip host line statements
# /^ip host line(\d+)/ &&
# ProcessHistory("IPHOST","numsort","$1","$_") && next;
# catch anything that wasnt matched above.
ProcessHistory("","","","$_");
# end of config.
if (/^end$/) {
$found_end = 1;
return(1);
}
}
return(0);
}
# dummy function
sub DoNothing {print STDOUT;}
# Main
@commandtable = (
{'show version' => 'ShowVersion'},
{'write term' => 'WriteTerm'}
);
# Use an array to preserve the order of the commands and a hash for mapping
# commands to the subroutine and track commands that have been completed.
@commands = map(keys(%$_), @commandtable);
%commands = map(%$_, @commandtable);
$cisco_cmds=join(";",@commands);
$cmds_regexp=join("|",@commands);
open(OUTPUT,">$host.new") || die "Can't open $host.new for writing: $!\n";
select(OUTPUT);
# make OUTPUT unbuffered if debugging
if ($debug) { $| = 1; }
if ($file) {
print STDERR "opening file $host\n" if ($debug);
print STDOUT "opening file $host\n" if ($log);
open(INPUT,"<$host") || die "open failed for $host: $!\n";
} else {
print STDERR "executing clogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($debug);
print STDOUT "executing clogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($log);
if (defined($ENV{NOPIPE})) {
system "clogin -t $timeo -c \"$cisco_cmds\" $host $host.raw 2>&1" || die "clogin failed for $host: $!\n";
open(INPUT, "< $host.raw") || die "clogin failed for $host: $!\n";
} else {
open(INPUT,"clogin -t $timeo -c \"$cisco_cmds\" $host ) {
tr/\015//d;
if (/\#\s?exit$/) {
$clean_run=1;
last;
}
if (/^Error:/) {
print STDOUT ("$host clogin error: $_");
print STDERR ("$host clogin error: $_") if ($debug);
$clean_run=0;
last;
}
while (/#\s*($cmds_regexp)\s*$/) {
$cmd = $1;
if (!defined($prompt)) {
$prompt = ($_ =~ /^([^#]+#)/)[0];
$prompt =~ s/([][}{)(\\])/\\$1/g;
}
print STDERR ("HIT COMMAND:$_") if ($debug);
if (! defined($commands{$cmd})) {
print STDERR "$host: found unexpected command - \"$cmd\"\n";
$clean_run = 0;
last TOP;
}
$rval = &{$commands{$cmd}};
delete($commands{$cmd});
if ($rval == -1) {
$clean_run = 0;
last TOP;
}
}
}
print STDOUT "Done $logincmd: $_\n" if ($log);
# Flush History
ProcessHistory("","","","");
# Cleanup
close(INPUT);
close(OUTPUT);
if (defined($ENV{NOPIPE})) {
unlink("$host.raw") if (! $debug);
}
# check for completeness
if (scalar(%commands) || !$clean_run || !$found_end) {
if (scalar(%commands)) {
printf(STDOUT "$host: missed cmd(s): %s\n", join(',', keys(%commands)));
printf(STDERR "$host: missed cmd(s): %s\n", join(',', keys(%commands))) if ($debug);
}
if (!$clean_run || !$found_end) {
print STDOUT "$host: End of run not found\n";
print STDERR "$host: End of run not found\n" if ($debug);
system("/usr/bin/tail -1 $host.new");
}
unlink "$host.new" if (! $debug);
}