bnrancid

#! /usr/bin/perl
##
## $Id: brancid.in 2279 2011-01-31 22:41:00Z heas $
## hacked version of Hank's rancid - this one tries to deal with Bay's.
##
## rancid 2.3.8
## Copyright (c) 1997-2008 by Terrapin Communications, Inc.
## All rights reserved.
##
## This code is derived from software contributed to and maintained by
## Terrapin Communications, Inc. by Henry Kilmer, John Heasley, Andrew Partan,
## Pete Whiting, Austin Schutz, and Andrew Fort.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions
## are met:
## 1. Redistributions of source code must retain the above copyright
##    notice, this list of conditions and the following disclaimer.
## 2. Redistributions in binary form must reproduce the above copyright
##    notice, this list of conditions and the following disclaimer in the
##    documentation and/or other materials provided with the distribution.
## 3. All advertising materials mentioning features or use of this software
##    must display the following acknowledgement:
##        This product includes software developed by Terrapin Communications,
##        Inc. and its contributors for RANCID.
## 4. Neither the name of Terrapin Communications, Inc. nor the names of its
##    contributors may be used to endorse or promote products derived from
##    this software without specific prior written permission.
## 5. It is requested that non-binding fixes and modifications be contributed
##    back to Terrapin Communications, Inc.
##
## THIS SOFTWARE IS PROVIDED BY Terrapin Communications, INC. AND CONTRIBUTORS
## ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
## PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COMPANY OR CONTRIBUTORS
## BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
## CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
## SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
## INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
## CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
## POSSIBILITY OF SUCH DAMAGE.
#
#  RANCID - Really Awesome New Cisco confIg Differ
#
# usage: rancid [-dV] [-l] [-f filename | hostname]
#
use Getopt::Std;
getopts('dflV');
if ($opt_V) {
    print "rancid 2.3.8\n";
    exit(0);
}
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$timeo = 90;                            # blogin timeout in seconds

my(@commandtable, %commands, @commands);# command lists
my($aclsort) = ("ipsort");              # ACL sorting mode
my($filter_commstr);                    # SNMP community string filtering
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 $command))
        && scalar(%history)) {
        print eval "$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 config"
sub ShowConfig {
    print STDERR "    In ShowConfig: $_" if ($debug);

    while (<INPUT>) {
        tr/\015//d;
        last if (/^$prompt/);
        next if (/^(\s*|\s*$cmd\s*)$/);
        next if (/^Reading configuration information/);
        next if (/^Can\'t find object or class named \"\-all\"\s*$/);
        next if (/lock-address .*$/);
        next if (/^\# *uptime +\d+\s*$/);
        if (/community label /) {
            if ($filter_commstr) {
                $_ =~ s/community label .*$/community label <removed>/;
            }
        }
        return(1) if /(invalid command name)/;
        ProcessHistory("","","","$_");
    }
    # ProcessHistory("","","","!$_");
    if (/exit$/) {
        $found_end = 1;
        return(1);
    }
    return(0);
}

# This routine parses single command's that return no required info
sub RunCommand {
    print STDERR "    In RunCommand: $_" if ($debug);

    while (<INPUT>) {
        tr/\015//d;
        last if (/^$prompt/);
        next if (/^(\s*|\s*$cmd\s*)$/);
        # prompt may have changed
        if (/\>/) {
            $prompt = ($_ =~ /^([^>#]+[>#])/)[0];
            $prompt =~ s/([][])/\\$1/g;
            last;
        }
    }
    return(0)
}

sub ExitCommand { while(<INPUT>) { next; } $found_end = 1; $clean_run = 1; return 0; }

# dummy function
sub DoNothing {print STDOUT;}

# Main
@commandtable = (
        {'terminal length 0'    => 'RunCommand'},
        {'show config'          => 'ShowConfig'},
        {'show running-config'  => 'ShowConfig'},
        {'show autosave'        => 'ShowConfig'},
        {'exit'                 => 'ExitCommand'}
);
# 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);
$cmds_regexp = join("|", map quotemeta($_), @commands);

if (length($host) == 0) {
    if ($file) {
        print(STDERR "Too few arguments: file name required\n");
        exit(1);
    } else {
        print(STDERR "Too few arguments: host name required\n");
        exit(1);
    }
}
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 bnlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($debug);
    print STDOUT "executing bnlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($log);
    if (defined($ENV{NOPIPE}) && $ENV{NOPIPE} =~ /^YES/i) {
       system "bnlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null > $host.raw 2>&1" || die "bnlogin failed for $host: $!\n";
       open(INPUT, "< $host.raw") || die "bnlogin failed for $host: $!\n";
    } else {
        open(INPUT,"bnlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null |") || die "bnlogin failed for $host: $!\n";
    }
}

# determine ACL sorting mode
if ($ENV{"ACLSORT"} =~ /no/i) {
    $aclsort = "";
}
# determine community string filtering mode
if (defined($ENV{"NOCOMMSTR"}) &&
    ($ENV{"NOCOMMSTR"} =~ /yes/i || $ENV{"NOCOMMSTR"} =~ /^$/)) {
    $filter_commstr = 1;
} else {
    $filter_commstr = 0;
}
# determine password filtering mode
if ($ENV{"FILTER_PWDS"} =~ /no/i) {
    $filter_pwds = 0;
} elsif ($ENV{"FILTER_PWDS"} =~ /all/i) {
    $filter_pwds = 2;
} else {
    $filter_pwds = 1;
}

ProcessHistory("","","","!RANCID-CONTENT-TYPE: baynortel\n!\n");
TOP: while(<INPUT>) {
    tr/\015//d;
    if ( (/[\>#]\s*exit$/) || $found_end ) {
        $clean_run=1;
        last;
    }
    if (/^Error:/) {
        print STDOUT ("$host bnlogin error: $_");
        print STDERR ("$host bnlogin 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 ("PROMPT MATCH: $prompt\n") if ($debug);
        }
        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}) && $ENV{NOPIPE} =~ /^YES/i) {
    unlink("$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);
}