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#! /usr/bin/perl -w
# Very simple script to try converting AppArmor profiles to the new
# profile syntax as of April 2007.
#
# Copyright (C) 2007 Andreas Gruenbacher <agruen@suse.de>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of version 2 of the GNU General Public
# License published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
use FileHandle;
use File::Temp;
use Getopt::Std;
use strict;
sub match($) {
my ($str) = @_;
my @fields;
@fields = ($str =~ /^(\s*)([@\/]\S*)(\s.*,)$/);
if (!@fields) {
@fields = ($str =~ /^(\s*")((?:[^"]|\\")*)("\s.*,)$/);
}
return @fields;
}
sub alterations($) {
my ($str) = @_;
if ($str =~ /^([^{]*){([^}]*,[^}]*)}(.*)$/) {
my @strs = map { "$1$_$3" } split(/,/, $2);
return map { alterations($_) } @strs;
} else {
return ($str);
}
}
my %known_dirs;
sub remember_pathname($) {
my ($str) = @_;
my $pathname;
for (split /(\/)/, $str) {
if ($_ eq '/' && $pathname ne '') {
#print "<<>> $pathname\n";
$known_dirs{$pathname} = 1;
}
$pathname .= $_;
}
}
sub add_slash($$) {
my ($str, $perms) = @_;
return exists $known_dirs{$str} || -d $str;
}
sub never_add_slash($$) {
my ($str, $perms) = @_;
return $perms =~ /[lmx]/ || $str =~ /\.(so|cf|db|conf|config|log|pid|so\*)$/ ||
$str =~ /(\*\*|\/)$/ || (-e $str && ! -d $str);
}
our($opt_i);
getopts('i');
foreach my $filename (@ARGV) {
my $fh_in;
$fh_in = new FileHandle("< $filename")
or die "$filename: $!\n";
while (<$fh_in>) {
if (my @fields = match($_)) {
for my $x (alterations($fields[1])) {
remember_pathname($x);
}
}
}
}
if (@ARGV == 0) {
print "Usage: $0 profile ...\n";
print "Tries to convert the profile to the new profile syntax, and\n" .
"prints the result to standard output. The result may need" .
"further review.\n";
exit 0;
}
foreach my $filename (@ARGV) {
my ($fh_in, $fh_out, $tmpname);
$fh_in = new FileHandle("< $filename")
or die "$filename: $!\n";
if ($opt_i) {
($fh_out, $tmpname) = mkstemp("$filename.XXXXXX")
or die "$!\n";
*STDOUT = $fh_out;
}
while (<$fh_in>) {
if (my @fields = match($_)) {
for my $x (alterations($fields[1])) {
if (never_add_slash($x, $fields[2])) {
print $_;
} elsif (add_slash($x, $fields[2])) {
print "$fields[0]$x/$fields[2] # (dir)\n";
} else {
print "$fields[0]$x/$fields[2] # (maybe-dir)\n";
print $_;
}
}
} else {
print $_;
}
}
if ($opt_i) {
rename $tmpname, $filename
or die "$filename: $!\n";
}
}
# vim: smartindent softtabstop=4 shiftwidth=4
|
