#!@PERLV_PATH@
##
##
## Copyright (C) 1997-2001 by Henry Kilmer.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed without
## fee for non-commerical purposes provided that this copyright notice is
## preserved intact on all copies and modified copies.
##
## 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.
##
##
#
# RANCID - Really Awesome New Cisco confIg Differ
#
# usage: rancid [-d] [-l] [-f filename | $host]
#
use Getopt::Std;
getopts('dflm');
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$timeo = 90; # clogin timeout in seconds
# This routine is used to print out the router configuration
sub ProcessHistory {
my($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 <=> $b; }
# This is a sort routing that will sort numerically on the
# keys of a hash as if it were a normal array.
sub keynsort {
local(%lines)=@_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort numerically keys(%lines)) {
$sorted_lines[$i] = $lines{$key};
$i++;
}
@sorted_lines;
}
# This is a sort routing that will sort on the
# keys of a hash as if it were a normal array.
sub keysort {
local(%lines)=@_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort keys(%lines)) {
$sorted_lines[$i] = $lines{$key};
$i++;
}
@sorted_lines;
}
# This is a sort routing that will sort on the
# values of a hash as if it were a normal array.
sub valsort{
local(%lines)=@_;
local($i) = 0;
local(@sorted_lines);
foreach $key (sort values %lines) {
$sorted_lines[$i] = $key;
$i++;
}
@sorted_lines;
}
# This is a numerical sort routing (ascending).
sub numsort {
local(%lines)=@_;
local($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*)$/);
/^\S+ Serial Number:/i &&
ProcessHistory("COMMENTS","keysort","A0","#$_") && next;
/^(\S+) Power Supply ([^:]+):\s+(.*)/i &&
ProcessHistory("COMMENTS","keysort","B0","#Power: $1 $2 $3\n")
&& next;
/^Image\s*:\s*(.*)/i &&
ProcessHistory("COMMENTS","keysort","C0","#Image: $1\n")
&& next;
#heas: need to collect this from show vers for ShowSlot where rev #s are excluded
#SLOT 1 : 702005-06 0025S-00877 CPLD Rev
#SLOT 2 : 702005-06 0021S-00131 CPLD Rev 02
#SLOT 3 : 702009-06 0024S-00170 CPLD Rev
#SLOT 4 : 702009-06 0024S-00319 CPLD Rev
}
return(0);
}
# This routine parses "show memory"
sub ShowMemory {
print STDERR " In ShowMemory: $_" if ($debug);
while () {
tr/\015//d;
last if(/^$prompt/);
next if(/^(\s*|\s*$cmd\s*)$/);
/^Total DRAM Size: (.*)/ &&
ProcessHistory("COMMENTS","keysort","A0","#\n#Memory: $1\n")
}
return(0);
}
# This routine parses "show install active"
sub ShowSlot {
print STDERR " In ShowSlot: $_" if ($debug);
while () {
tr/\015//d;
last if (/^$prompt/);
next if (/^(\s*|\s*$cmd\s*)$/);
if (/^Slot\s+(\d+)\s+/i) {
my($slot) = $1;
my($hwtype, $conftype, $sn, $state);
ProcessHistory("SLOT","keysort","$slot","#\n");
while () {
tr/\015//d;
last if (/^$prompt/ || /^\s*$/);
if (/State:\s+(.*)$/i) { $state = $1; }
if (/serial number:\s+(.*)$/i) { $sn = $1; }
if (/hw module type:\s+(.*)$/i) { $hwtype = $1; }
if (/configured type:\s+(.*)$/i) { $conftype = $1; }
}
ProcessHistory("SLOT","keysort","$slot","#Slot $slot: type $hwtype,"
. " $conftype\n#Slot $slot: serial $sn\n#Slot $slot: state "
. " $state\n");
return if (/^$prompt/);
next;
}
}
return(0);
}
# This routine processes a "write term"
sub WriteTerm {
print STDERR " In WriteTerm: $_" if ($debug);
while () {
tr/\015//d;
last if(/^$prompt/);
next if(/^\s*$/);
# the pager can not be disabled per-session on the PIX
s/^<-+ More -+>\s*//;
# Dog gone Cool matches to process the rest of the config
/^(# \S+ Configuration) generated/i &&
ProcessHistory("","","","$1\n") && next;
/^(config bgp (neighbor|peer-group) \S+ password encrypted)/i &&
ProcessHistory("","","","# $1 \n") &&
next;
# /^( ip ospf authentication-key) / &&
# ProcessHistory("","","","!$1 \n") && next;
# /^( ip ospf message-digest-key \d+ md5) / &&
# ProcessHistory("","","","!$1 \n") && next;
# # sort route-maps
# if (/^route-map (\S+)/) {
# my($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 extended access-lists
# /^access-list\s+(\d\d\d)\s+(\S+)\s+ip\s+host\s+(\S+)/ &&
# ProcessHistory("EACL $1 $2","ipsort","$3","$_") && next;
# /^access-list\s+(\d\d\d)\s+(\S+)\s+ip\s+(\d\S+)/ &&
# ProcessHistory("EACL $1 $2","ipsort","$3","$_") && next;
# /^access-list\s+(\d\d\d)\s+(\S+)\s+ip\s+any/ &&
# ProcessHistory("EACL $1 $2","ipsort","0.0.0.0","$_") && next;
# # order arp lists
# /^arp\s+(\d+\.\d+\.\d+\.\d+)\s+/ &&
# ProcessHistory("ARP","ipsort","$1","$_") && next;
# /^ip prefix-list\s+(\S+)\s+seq\s+(\d+)\s+(permit|deny)\s+(\d\S+)(\/.*)$/ &&
# ProcessHistory("PACL $1 $3","ipsort","$4","ip prefix-list $1 $3 $4$5\n")
# && next;
# order logging statements
/^configure syslog add logging (\d+\.\d+\.\d+\.\d+)/ &&
ProcessHistory("LOGGING","ipsort","$1","$_") && next;
# order/prune snmp-server host statements
# we only prune lines of the form
# configure snmp add trapreceiver a.b.c.d
if (/^(configure snmp add trapreceiver )(\d+\.\d+\.\d+\.\d+) (community) \S+ (.*)/) {
if (defined($ENV{'NOCOMMSTR'})) {
ProcessHistory("SNMPSVRHOST","ipsort","$2","# $1$2 $3 $4\n");
} else {
ProcessHistory("SNMPSVRHOST","ipsort","$2","$_\n");
}
next;
}
if (/^(configure snmp add community (readonly|readwrite) \S+) (\S+)/) {
if (defined($ENV{'NOCOMMSTR'})) {
ProcessHistory("SNMPSVRCOMM","keysort","$_","#$1 $'");
next;
} else {
ProcessHistory("SNMPSVRCOMM","keysort","$_","$_") && next;
}
}
# order/prune tacacs/radius server statements
/^(configure radius (primary|secondary) (tacacs-server|radius-server) shared-secret encrypted)/ &&
ProcessHistory("","","","# $1 \n") && next;
# catch anything that wasnt match above.
ProcessHistory("","","","$_");
# end of config
if (/^# End of configuration file/i) {
printf STDERR " End WriteTerm: $_" if ($debug);
$found_end = 1;
return(1);
}
}
return(0);
}
# dummy function
sub DoNothing {print STDOUT;}
# Main
%commands=(
'show version' => "ShowVersion",
'show memory' => "ShowMemory",
'show slot' => "ShowSlot",
'show configuration' => "WriteTerm"
);
# keys() doesnt return things in the order entered and the order of the
# cmds is important (show version first and write term last). pita
@commands=(
"show version",
"show memory",
"show slot",
"show configuration"
);
$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\" $host ) {
tr/\015//d;
# note: this match sucks rocks, but the currently the extreme bits are
# unreliable about echoing the 'exit\n' command. this match might really
# be a bad idea, but instead rely upon WriteTerm's found_end?
if (/$prompt\s?(exit$|Connection closed)/ && $found_end) {
$clean_run=1;
last;
}
if (/^Error:/) {
print STDOUT ("$host clogin error: $_");
print STDERR ("$host clogin error: $_") if ($debug);
$clean_run=0;
last;
}
while (/$prompt\s*($cmds_regexp)\s*$/) {
$cmd = $1;
if (!defined($prompt)) {
$prompt = ($_ =~ /^([^#]+#)/)[0];
$prompt =~ s/:(\d+ ?)#/:\\d+ ?#/;
print STDERR ("PROMPT MATCH:$prompt\n") if ($debug);
}
print STDERR ("HIT COMMAND:$_") if ($debug);
if (! defined($commands{$cmd})) {
print STDERR "found unexpected command - \"$cmd\"\n";
$clean_run = 0;
last TOP;
}
$rval = &{$commands{$cmd}};
delete($commands{$cmd});
if ($rval == -1) {
printf STDERR "rval = -1\n" if (debug);
$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 || !$found_end) {
if (scalar(%commands)) {
printf(STDOUT "missed cmd(s): %s\n", join(',', keys(%commands)));
printf(STDERR "missed cmd(s): %s\n", join(',', keys(%commands))) if ($debug);
}
if (!$clean_run || !$found_end) {
print STDOUT "End of run not found\n";
print STDERR "End of run not found\n" if ($debug);
system("/usr/bin/tail -1 $host.new");
}
unlink "$host.new" if (! $debug);
}