Rancid-Fortigate:Filter cycling RSA private keys and Cycling password encryption

USE THE FOLLOWING FNRANCID FILE FOR BACKING UP FORTIGATE DEVICES WITHOUT RSA KEYS AND PASSWORD ENCRYPTION.

NOTE:SUGGESTED TO CHECK THE SCRIPT ONTEST FIREWALL

vi fnrancid

#! /usr/bin/perl

use Getopt::Std;
getopts('dflV');
if ($opt_V) {
    print "@PACKAGE@ @VERSION@\n";
    exit(0);
}
$log = $opt_l;
$debug = $opt_d;
#$debug = 1;
$file = $opt_f;
$host = $ARGV[0];
$found_end = 0;
$timeo = 90; # fnlogin 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 "get system"
sub GetSystem {
    print STDERR " In GetSystem: $_" if ($debug);

    while (<INPUT>) {
tr/\015//d;
next if /^\s*$/;
last if (/$prompt/);

next if (/^system time:/i);
next if (/^\s*Virus-DB: .*/);
next if (/^\s*Extended DB: .*/);
next if (/^\s*IPS-DB: .*/);
next if (/^FortiClient application signature package:/);

ProcessHistory("","","","#$_");
    }
    ProcessHistory("SYSTEM","","","\n");
    return(0);
}

sub GetFile {
    print STDERR " In GetFile: $_" if ($debug);

    while (<INPUT>) {
last if (/$prompt/);
    }
    ProcessHistory("FILE","","","\n");
    return(0);
}

sub GetConf {
    print STDERR " In GetConf: $_" if ($debug);

    while (<INPUT>) {
tr/\015//d;
next if /^\s*$/;
last if (/$prompt/);

# System time is fortigate extraction time
next if (/^\s*!System time:/);
# remove occurrances of conf_file_ver
next if (/^#?conf_file_ver=/);

# filter cycling RSA private keys
if (/^\s*set private-key "-----BEGIN RSA PRIVATE KEY-----/) {
    ProcessHistory("","","","#$_");
    ProcessHistory("","","","# <removed>");
    while (<INPUT>) {
    tr/\015//d;
    last if (/$prompt/);

if (/^\s*-----END RSA PRIVATE KEY-----"/) {
    ProcessHistory("","","","#$_");
    last;
}
}
}
# filter cycling password encryption
if (/^\s*(set [^\s]*)\s(ENC\s[^\s]+)(.*)/i ) {
    ProcessHistory("ENC","","","#$1 ENC <removed> $3\n");
    next;
    }

    ProcessHistory("","","","$_");
    }
    $found_end = 1;
    return(1);
}

# dummy function
sub DoNothing {print STDOUT;}

# Main
@commandtable = (
{'get system status' => 'GetSystem'},
{'show full-configuration' => 'GetConf'}
);
# 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 fnlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($debug);
    print STDOUT "executing fnlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($log);
    if (defined($ENV{NOPIPE}) && $ENV{NOPIPE} =~ /^YES/i) {
system "fnlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null > $host.raw 2>&1" || die "fnlogin failed for $host: $!\n";
open(INPUT, "< $host.raw") || die "fnlogin failed for $host: $!\n";
    } else {
open(INPUT,"fnlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null |") || die "fnlogin 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: fortigate\n\n");
TOP: while(<INPUT>) {
    tr/\015//d;
    if (/^Error:/) {
print STDOUT ("$host fnlogin error: $_");
print STDERR ("$host fnlogin error: $_") if ($debug);
last;
    }
    while (/^.+(#|\$)\s*($cmds_regexp)\s*$/) {
$cmd = $2;
# - FortiGate prompts end with either '#' or '$'. Further, they may
# be prepended with a '~' if the hostname is too long. Therefore,
# we need to figure out what our prompt really is.
if (!defined($prompt)) {
if ($_ =~ m/^.+\~\$/) {
$prompt = '\~\$ .*';
} else {
if ($_ =~ m/^.+\$/) {
$prompt = ' \$ .*';
} else {
if ($_ =~ m/^.+\~#/) {
$prompt = '\~# .*';
} else {
if ($_ =~ m/^.+#/) {
$prompt = ' # .*';
}
}
}
}
}
print STDERR ("HIT COMMAND:$_") if ($debug);
if (!defined($commands{$cmd})) {
print STDERR "$host: found unexpected command - \"$cmd\"\n";
last TOP;
}
$rval = &{$commands{$cmd}};
delete($commands{$cmd});
if ($rval == -1) {
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) || !$found_end) {
    if (scalar(%commands)) {
printf(STDOUT "$host: missed cmd(s): %s\n", join(',', keys(%commands)));
printf(STDERR "$host: missed cmd(s): %s\n", join(',', keys(%commands))) if ($debug);
    }
    if (!$found_end) {
print STDOUT "$found_end: found end\n";
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);
}