forked from extern/shorewall_code
3729 lines
98 KiB
Perl
3729 lines
98 KiB
Perl
#
|
|
# Shorewall 4.4 -- /usr/share/shorewall/Shorewall/Config.pm
|
|
#
|
|
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
|
|
#
|
|
# (c) 2007,2008,2009,2010,2011 - Tom Eastep (teastep@shorewall.net)
|
|
#
|
|
# Complete documentation is available at http://shorewall.net
|
|
#
|
|
# 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
|
|
# as 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.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
#
|
|
# This module is responsible for lower level configuration file handling.
|
|
# It also exports functions for generating warning and error messages.
|
|
# The get_configuration function parses the shorewall.conf, capabilities and
|
|
# modules files during compiler startup. The module also provides the basic
|
|
# output file services such as creation of temporary 'script' files, writing
|
|
# into those files (emitters) and finalizing those files (renaming
|
|
# them to their final name and setting their mode appropriately).
|
|
#
|
|
package Shorewall::Config;
|
|
|
|
use strict;
|
|
use warnings;
|
|
use File::Basename;
|
|
use File::Temp qw/ tempfile tempdir /;
|
|
use Cwd qw(abs_path getcwd);
|
|
use autouse 'Carp' => qw(longmess confess);
|
|
use Scalar::Util 'reftype';
|
|
use FindBin;
|
|
|
|
our @ISA = qw(Exporter);
|
|
#
|
|
# Imported variables should be treated as read-only by importers
|
|
#
|
|
our @EXPORT = qw(
|
|
warning_message
|
|
fatal_error
|
|
assert
|
|
progress_message
|
|
progress_message_nocompress
|
|
progress_message2
|
|
progress_message3
|
|
);
|
|
|
|
our @EXPORT_OK = qw( $shorewall_dir initialize set_config_path shorewall);
|
|
|
|
our %EXPORT_TAGS = ( internal => [ qw( create_temp_script
|
|
finalize_script
|
|
enable_script
|
|
disable_script
|
|
numeric_value
|
|
numeric_value1
|
|
normalize_hex
|
|
hex_value
|
|
in_hex
|
|
in_hex2
|
|
in_hex3
|
|
in_hex4
|
|
in_hex8
|
|
in_hexp
|
|
emit
|
|
emitstd
|
|
emit_unindented
|
|
save_progress_message
|
|
save_progress_message_short
|
|
set_timestamp
|
|
set_verbosity
|
|
set_log
|
|
close_log
|
|
set_command
|
|
push_indent
|
|
pop_indent
|
|
copy
|
|
copy1
|
|
copy2
|
|
create_temp_aux_config
|
|
finalize_aux_config
|
|
set_shorewall_dir
|
|
set_debug
|
|
find_file
|
|
split_list
|
|
split_list1
|
|
split_line
|
|
split_line1
|
|
first_entry
|
|
open_file
|
|
close_file
|
|
push_open
|
|
pop_open
|
|
push_action_params
|
|
pop_action_params
|
|
default_action_params
|
|
read_a_line
|
|
validate_level
|
|
which
|
|
qt
|
|
ensure_config_path
|
|
add_param
|
|
export_params
|
|
get_configuration
|
|
require_capability
|
|
have_capability
|
|
report_capabilities
|
|
propagateconfig
|
|
append_file
|
|
run_user_exit
|
|
run_user_exit1
|
|
run_user_exit2
|
|
generate_aux_config
|
|
|
|
$product
|
|
$Product
|
|
$toolname
|
|
$command
|
|
$doing
|
|
$done
|
|
$currentline
|
|
$debug
|
|
%config
|
|
%globals
|
|
%config_files
|
|
|
|
@auditoptions
|
|
|
|
F_IPV4
|
|
F_IPV6
|
|
|
|
MIN_VERBOSITY
|
|
MAX_VERBOSITY
|
|
) ] );
|
|
|
|
Exporter::export_ok_tags('internal');
|
|
|
|
our $VERSION = '4.4_20';
|
|
|
|
#
|
|
# describe the current command, it's present progressive, and it's completion.
|
|
#
|
|
our ($command, $doing, $done );
|
|
#
|
|
# VERBOSITY
|
|
#
|
|
my $verbosity;
|
|
#
|
|
# Logging
|
|
#
|
|
my ( $log, $log_verbosity );
|
|
#
|
|
# Timestamp each progress message, if true.
|
|
#
|
|
my $timestamp;
|
|
#
|
|
# Script (output) file handle
|
|
#
|
|
my $script;
|
|
#
|
|
# When 'true', writes to the script are enabled. Used to catch code emission between functions
|
|
#
|
|
my $script_enabled;
|
|
#
|
|
# True, if last line emitted is blank
|
|
#
|
|
my $lastlineblank;
|
|
#
|
|
# Tabs to indent the output
|
|
#
|
|
my $indent1;
|
|
#
|
|
# Characters to indent the output
|
|
#
|
|
my $indent2;
|
|
#
|
|
# Total indentation
|
|
#
|
|
my $indent;
|
|
#
|
|
# Script's Directory and File
|
|
#
|
|
my ( $dir, $file );
|
|
#
|
|
# Temporary output file's name
|
|
#
|
|
my $tempfile;
|
|
#
|
|
# Misc Globals exported to other modules
|
|
#
|
|
our %globals;
|
|
#
|
|
# From shorewall.conf file - exported to other modules.
|
|
#
|
|
our %config;
|
|
#
|
|
# Config options and global settings that are to be copied to output script
|
|
#
|
|
my @propagateconfig = qw/ DISABLE_IPV6 MODULESDIR MODULE_SUFFIX LOAD_HELPERS_ONLY SUBSYSLOCK LOG_VERBOSITY/;
|
|
#
|
|
# From parsing the capabilities file or detecting capabilities
|
|
#
|
|
my %capabilities;
|
|
#
|
|
# Capabilities
|
|
#
|
|
my %capdesc = ( NAT_ENABLED => 'NAT',
|
|
MANGLE_ENABLED => 'Packet Mangling',
|
|
MULTIPORT => 'Multi-port Match' ,
|
|
XMULTIPORT => 'Extended Multi-port Match',
|
|
CONNTRACK_MATCH => 'Connection Tracking Match',
|
|
OLD_CONNTRACK_MATCH =>
|
|
'Old conntrack match syntax',
|
|
NEW_CONNTRACK_MATCH =>
|
|
'Extended Connection Tracking Match',
|
|
USEPKTTYPE => 'Packet Type Match',
|
|
POLICY_MATCH => 'Policy Match',
|
|
PHYSDEV_MATCH => 'Physdev Match',
|
|
PHYSDEV_BRIDGE => 'Physdev-is-bridged support',
|
|
LENGTH_MATCH => 'Packet length Match',
|
|
IPRANGE_MATCH => 'IP Range Match',
|
|
RECENT_MATCH => 'Recent Match',
|
|
OWNER_MATCH => 'Owner Match',
|
|
IPSET_MATCH => 'Ipset Match',
|
|
OLD_IPSET_MATCH => 'Old Ipset Match',
|
|
CONNMARK => 'CONNMARK Target',
|
|
XCONNMARK => 'Extended CONNMARK Target',
|
|
CONNMARK_MATCH => 'Connmark Match',
|
|
XCONNMARK_MATCH => 'Extended Connmark Match',
|
|
RAW_TABLE => 'Raw Table',
|
|
IPP2P_MATCH => 'IPP2P Match',
|
|
OLD_IPP2P_MATCH => 'Old IPP2P Match Syntax',
|
|
CLASSIFY_TARGET => 'CLASSIFY Target',
|
|
ENHANCED_REJECT => 'Extended Reject',
|
|
KLUDGEFREE => 'Repeat match',
|
|
MARK => 'MARK Target',
|
|
XMARK => 'Extended Mark Target',
|
|
EXMARK => 'Extended Mark Target 2',
|
|
MANGLE_FORWARD => 'Mangle FORWARD Chain',
|
|
COMMENTS => 'Comments',
|
|
ADDRTYPE => 'Address Type Match',
|
|
TCPMSS_MATCH => 'TCPMSS Match',
|
|
HASHLIMIT_MATCH => 'Hashlimit Match',
|
|
NFQUEUE_TARGET => 'NFQUEUE Target',
|
|
REALM_MATCH => 'Realm Match',
|
|
HELPER_MATCH => 'Helper Match',
|
|
CONNLIMIT_MATCH => 'Connlimit Match',
|
|
TIME_MATCH => 'Time Match',
|
|
GOTO_TARGET => 'Goto Support',
|
|
LOG_TARGET => 'LOG Target',
|
|
LOGMARK_TARGET => 'LOGMARK Target',
|
|
IPMARK_TARGET => 'IPMARK Target',
|
|
PERSISTENT_SNAT => 'Persistent SNAT',
|
|
OLD_HL_MATCH => 'Old Hash Limit Match',
|
|
TPROXY_TARGET => 'TPROXY Target',
|
|
FLOW_FILTER => 'Flow Classifier',
|
|
FWMARK_RT_MASK => 'fwmark route mask',
|
|
MARK_ANYWHERE => 'Mark in any table',
|
|
HEADER_MATCH => 'Header Match',
|
|
ACCOUNT_TARGET => 'ACCOUNT Target',
|
|
AUDIT_TARGET => 'AUDIT Target',
|
|
CAPVERSION => 'Capability Version',
|
|
KERNELVERSION => 'Kernel Version',
|
|
);
|
|
|
|
our %config_files = ( #accounting => 1,
|
|
actions => 1,
|
|
blacklist => 1,
|
|
clear => 1,
|
|
ecn => 1,
|
|
findgw => 1,
|
|
hosts => 1,
|
|
init => 1,
|
|
initdone => 1,
|
|
interfaces => 1,
|
|
isusable => 1,
|
|
maclist => 1,
|
|
masq => 1,
|
|
nat => 1,
|
|
netmap => 1,
|
|
notrack => 1,
|
|
params => 1,
|
|
policy => 1,
|
|
providers => 1,
|
|
proxyarp => 1,
|
|
refresh => 1,
|
|
refreshed => 1,
|
|
restored => 1,
|
|
route_rules => 1,
|
|
routes => 1,
|
|
routestopped => 1,
|
|
rules => 1,
|
|
scfilter => 1,
|
|
secmarks => 1,
|
|
start => 1,
|
|
started => 1,
|
|
stop => 1,
|
|
stopped => 1,
|
|
tcclasses => 1,
|
|
tcclear => 1,
|
|
tcdevices => 1,
|
|
tcfilters => 1,
|
|
tcinterfaces => 1,
|
|
tcpri => 1,
|
|
tcrules => 1,
|
|
tos => 1,
|
|
tunnels => 1,
|
|
zones => 1 );
|
|
#
|
|
# Options that involve the the AUDIT target
|
|
#
|
|
our @auditoptions = qw( BLACKLIST_DISPOSITION MACLIST_DISPOSITION TCP_FLAGS_DISPOSITION );
|
|
#
|
|
# Directories to search for configuration files
|
|
#
|
|
my @config_path;
|
|
#
|
|
# Stash away file references here when we encounter INCLUDE
|
|
#
|
|
my @includestack;
|
|
#
|
|
# Allow nested opens
|
|
#
|
|
my @openstack;
|
|
#
|
|
# From the params file
|
|
#
|
|
my %params;
|
|
#
|
|
# Entries that the compiler adds to %params
|
|
#
|
|
my %compiler_params;
|
|
#
|
|
# Action parameters
|
|
#
|
|
my %actparms;
|
|
|
|
our $currentline; # Current config file line image
|
|
my $currentfile; # File handle reference
|
|
my $currentfilename; # File NAME
|
|
my $currentlinenumber; # Line number
|
|
my $perlscript; # File Handle Reference to current temporary file being written by an in-line Perl script
|
|
my $perlscriptname; # Name of that file.
|
|
my @tempfiles; # Files that need unlinking at END
|
|
my $first_entry; # Message to output or function to call on first non-blank line of a file
|
|
|
|
my $shorewall_dir; # Shorewall Directory; if non-empty, search here first for files.
|
|
|
|
our $debug; # Global debugging flag
|
|
my $confess; # If true, use Carp to report errors with stack trace.
|
|
|
|
our $family; # Protocol family (4 or 6)
|
|
our $toolname; # Name of the tool to use (iptables or iptables6)
|
|
my $toolNAME; # Tool name in CAPS
|
|
our $product; # Name of product that will run the generated script
|
|
our $Product; # $product with initial cap.
|
|
|
|
my $sillyname; # Name of temporary filter chains for testing capabilities
|
|
my $sillyname1;
|
|
my $iptables; # Path to iptables/ip6tables
|
|
my $tc; # Path to tc
|
|
my $ip; # Path to ip
|
|
|
|
use constant { MIN_VERBOSITY => -1,
|
|
MAX_VERBOSITY => 2 ,
|
|
F_IPV4 => 4,
|
|
F_IPV6 => 6,
|
|
};
|
|
|
|
my %validlevels; # Valid log levels.
|
|
|
|
#
|
|
# Rather than initializing globals in an INIT block or during declaration,
|
|
# we initialize them in a function. This is done for two reasons:
|
|
#
|
|
# 1. Proper initialization depends on the address family which isn't
|
|
# known until the compiler has started.
|
|
#
|
|
# 2. The compiler can run multiple times in the same process so it has to be
|
|
# able to re-initialize its dependent modules' state.
|
|
#
|
|
sub initialize( $ ) {
|
|
$family = shift;
|
|
|
|
if ( $family == F_IPV4 ) {
|
|
( $product, $Product, $toolname, $toolNAME ) = qw( shorewall Shorewall iptables IPTABLES );
|
|
} else {
|
|
( $product, $Product, $toolname, $toolNAME ) = qw( shorewall6 Shorewall6 ip6tables IP6TABLES );
|
|
}
|
|
|
|
$verbosity = 0; # Verbosity setting. -1 = silent, 0 = almost silent, 1 = major progress messages only, 2 = all progress messages (very noisy)
|
|
$log = undef; # File reference for log file
|
|
$log_verbosity = -1; # Verbosity of log.
|
|
$timestamp = ''; # If true, we are to timestamp each progress message
|
|
$script = 0; # Script (output) file Handle Reference
|
|
$script_enabled = 0; # Writing to output file is disabled initially
|
|
$lastlineblank = 0; # Avoid extra blank lines in the output
|
|
$indent1 = ''; # Current indentation tabs
|
|
$indent2 = ''; # Current indentation spaces
|
|
$indent = ''; # Current total indentation
|
|
( $dir, $file ) = ('',''); # Script's Directory and Filename
|
|
$tempfile = ''; # Temporary File Name
|
|
$sillyname =
|
|
$sillyname1 = ''; # Temporary ipchains
|
|
|
|
#
|
|
# Misc Globals
|
|
#
|
|
%globals = ( SHAREDIRPL => '/usr/share/shorewall/' ,
|
|
CONFDIR => '/etc/shorewall', # Run-time configuration directory
|
|
CONFIGDIR => '', # Compile-time configuration directory (location of $product.conf)
|
|
LOGPARMS => '',
|
|
TC_SCRIPT => '',
|
|
EXPORT => 0,
|
|
STATEMATCH => '-m state --state',
|
|
UNTRACKED => 0,
|
|
VERSION => "4.4.21-Beta1",
|
|
CAPVERSION => 40417 ,
|
|
);
|
|
#
|
|
# From shorewall.conf file
|
|
#
|
|
%config =
|
|
( STARTUP_ENABLED => undef,
|
|
VERBOSITY => undef,
|
|
#
|
|
# Logging
|
|
#
|
|
LOGFILE => undef,
|
|
LOGFORMAT => undef,
|
|
LOGTAGONLY => undef,
|
|
LOGLIMIT => undef,
|
|
LOGRATE => undef,
|
|
LOGBURST => undef,
|
|
LOGALLNEW => undef,
|
|
BLACKLIST_LOGLEVEL => undef,
|
|
RFC1918_LOG_LEVEL => undef,
|
|
MACLIST_LOG_LEVEL => undef,
|
|
TCP_FLAGS_LOG_LEVEL => undef,
|
|
SMURF_LOG_LEVEL => undef,
|
|
LOG_MARTIANS => undef,
|
|
LOG_VERBOSITY => undef,
|
|
STARTUP_LOG => undef,
|
|
SFILTER_LOG_LEVEL => undef,
|
|
#
|
|
# Location of Files
|
|
#
|
|
IP => undef,
|
|
TC => undef,
|
|
IPSET => undef,
|
|
PERL => undef,
|
|
#
|
|
#PATH is inherited
|
|
#
|
|
PATH => undef,
|
|
SHOREWALL_SHELL => undef,
|
|
SUBSYSLOCK => undef,
|
|
MODULESDIR => undef,
|
|
#
|
|
#CONFIG_PATH is inherited
|
|
#
|
|
CONFIG_PATH => undef,
|
|
RESTOREFILE => undef,
|
|
IPSECFILE => undef,
|
|
LOCKFILE => undef,
|
|
#
|
|
# Default Actions/Macros
|
|
#
|
|
DROP_DEFAULT => undef,
|
|
REJECT_DEFAULT => undef,
|
|
ACCEPT_DEFAULT => undef,
|
|
QUEUE_DEFAULT => undef,
|
|
NFQUEUE_DEFAULT => undef,
|
|
#
|
|
# RSH/RCP Commands
|
|
#
|
|
RSH_COMMAND => undef,
|
|
RCP_COMMAND => undef,
|
|
#
|
|
# Firewall Options
|
|
#
|
|
BRIDGING => undef,
|
|
IP_FORWARDING => undef,
|
|
ADD_IP_ALIASES => undef,
|
|
ADD_SNAT_ALIASES => undef,
|
|
RETAIN_ALIASES => undef,
|
|
TC_ENABLED => undef,
|
|
TC_EXPERT => undef,
|
|
TC_PRIOMAP => undef,
|
|
CLEAR_TC => undef,
|
|
MARK_IN_FORWARD_CHAIN => undef,
|
|
CLAMPMSS => undef,
|
|
ROUTE_FILTER => undef,
|
|
DETECT_DNAT_IPADDRS => undef,
|
|
MUTEX_TIMEOUT => undef,
|
|
ADMINISABSENTMINDED => undef,
|
|
BLACKLISTNEWONLY => undef,
|
|
DELAYBLACKLISTLOAD => undef,
|
|
MODULE_SUFFIX => undef,
|
|
DISABLE_IPV6 => undef,
|
|
DYNAMIC_ZONES => undef,
|
|
PKTTYPE=> undef,
|
|
MACLIST_TABLE => undef,
|
|
MACLIST_TTL => undef,
|
|
SAVE_IPSETS => undef,
|
|
MAPOLDACTIONS => undef,
|
|
FASTACCEPT => undef,
|
|
IMPLICIT_CONTINUE => undef,
|
|
HIGH_ROUTE_MARKS => undef,
|
|
USE_ACTIONS=> undef,
|
|
OPTIMIZE => undef,
|
|
EXPORTPARAMS => undef,
|
|
SHOREWALL_COMPILER => undef,
|
|
EXPAND_POLICIES => undef,
|
|
KEEP_RT_TABLES => undef,
|
|
DELETE_THEN_ADD => undef,
|
|
MULTICAST => undef,
|
|
DONT_LOAD => '',
|
|
AUTO_COMMENT => undef ,
|
|
MANGLE_ENABLED => undef ,
|
|
RFC1918_STRICT => undef ,
|
|
NULL_ROUTE_RFC1918 => undef ,
|
|
USE_DEFAULT_RT => undef ,
|
|
RESTORE_DEFAULT_ROUTE => undef ,
|
|
FAST_STOP => undef ,
|
|
AUTOMAKE => undef ,
|
|
WIDE_TC_MARKS => undef,
|
|
TRACK_PROVIDERS => undef,
|
|
ZONE2ZONE => undef,
|
|
ACCOUNTING => undef,
|
|
OPTIMIZE_ACCOUNTING => undef,
|
|
ACCOUNTING_TABLE => undef,
|
|
DYNAMIC_BLACKLIST => undef,
|
|
LOAD_HELPERS_ONLY => undef,
|
|
REQUIRE_INTERFACE => undef,
|
|
FORWARD_CLEAR_MARK => undef,
|
|
COMPLETE => undef,
|
|
EXPORTMODULES => undef,
|
|
LEGACY_FASTSTART => undef,
|
|
FAKE_AUDIT => undef,
|
|
#
|
|
# Packet Disposition
|
|
#
|
|
MACLIST_DISPOSITION => undef,
|
|
TCP_FLAGS_DISPOSITION => undef,
|
|
BLACKLIST_DISPOSITION => undef,
|
|
SMURF_DISPOSITION => undef,
|
|
SFILTER_DISPOSITION => undef,
|
|
#
|
|
# Mark Geometry
|
|
#
|
|
TC_BITS => undef,
|
|
PROVIDER_BITS => undef,
|
|
PROVIDER_OFFSET => undef,
|
|
MASK_BITS => undef
|
|
);
|
|
|
|
%validlevels = ( DEBUG => 7,
|
|
INFO => 6,
|
|
NOTICE => 5,
|
|
WARNING => 4,
|
|
WARN => 4,
|
|
ERR => 3,
|
|
ERROR => 3,
|
|
CRIT => 2,
|
|
ALERT => 1,
|
|
EMERG => 0,
|
|
PANIC => 0,
|
|
NONE => '',
|
|
NFLOG => 'NFLOG',
|
|
LOGMARK => 'LOGMARK' );
|
|
|
|
#
|
|
# From parsing the capabilities file or capabilities detection
|
|
#
|
|
%capabilities =
|
|
( NAT_ENABLED => undef,
|
|
MANGLE_ENABLED => undef,
|
|
MULTIPORT => undef,
|
|
XMULTIPORT => undef,
|
|
CONNTRACK_MATCH => undef,
|
|
NEW_CONNTRACK_MATCH => undef,
|
|
OLD_CONNTRACK_MATCH => undef,
|
|
USEPKTTYPE => undef,
|
|
POLICY_MATCH => undef,
|
|
PHYSDEV_MATCH => undef,
|
|
PHYSDEV_BRIDGE => undef,
|
|
LENGTH_MATCH => undef,
|
|
IPRANGE_MATCH => undef,
|
|
RECENT_MATCH => undef,
|
|
OWNER_MATCH => undef,
|
|
IPSET_MATCH => undef,
|
|
OLD_IPSET_MATCH => undef,
|
|
CONNMARK => undef,
|
|
XCONNMARK => undef,
|
|
CONNMARK_MATCH => undef,
|
|
XCONNMARK_MATCH => undef,
|
|
RAW_TABLE => undef,
|
|
IPP2P_MATCH => undef,
|
|
OLD_IPP2P_MATCH => undef,
|
|
CLASSIFY_TARGET => undef,
|
|
ENHANCED_REJECT => undef,
|
|
KLUDGEFREE => undef,
|
|
MARK => undef,
|
|
XMARK => undef,
|
|
EXMARK => undef,
|
|
MANGLE_FORWARD => undef,
|
|
COMMENTS => undef,
|
|
ADDRTYPE => undef,
|
|
TCPMSS_MATCH => undef,
|
|
HASHLIMIT_MATCH => undef,
|
|
NFQUEUE_TARGET => undef,
|
|
REALM_MATCH => undef,
|
|
HELPER_MATCH => undef,
|
|
CONNLIMIT_MATCH => undef,
|
|
TIME_MATCH => undef,
|
|
GOTO_TARGET => undef,
|
|
LOGMARK_TARGET => undef,
|
|
IPMARK_TARGET => undef,
|
|
TPROXY_TARGET => undef,
|
|
LOG_TARGET => 1, # Assume that we have it.
|
|
PERSISTENT_SNAT => undef,
|
|
OLD_HL_MATCH => undef,
|
|
FLOW_FILTER => undef,
|
|
FWMARK_RT_MASK => undef,
|
|
MARK_ANYWHERE => undef,
|
|
HEADER_MATCH => undef,
|
|
ACCOUNT_TARGET => undef,
|
|
AUDIT_TARGET => undef,
|
|
CAPVERSION => undef,
|
|
KERNELVERSION => undef,
|
|
);
|
|
#
|
|
# Directories to search for configuration files
|
|
#
|
|
@config_path = ();
|
|
#
|
|
# Stash away file references here when we encounter INCLUDE
|
|
#
|
|
@includestack = ();
|
|
#
|
|
# Allow nested opens
|
|
#
|
|
@openstack = ();
|
|
|
|
$currentline = ''; # Line image
|
|
$currentfile = undef; # File handle reference
|
|
$currentfilename = ''; # File NAME
|
|
$currentlinenumber = 0; # Line number
|
|
$first_entry = 0; # Message to output or function to call on first non-blank file entry
|
|
|
|
$shorewall_dir = ''; #Shorewall Directory
|
|
|
|
$debug = 0;
|
|
$confess = 0;
|
|
|
|
%params = ( root => '',
|
|
system => '',
|
|
command => '',
|
|
files => '',
|
|
destination => '' );
|
|
|
|
%compiler_params = ();
|
|
|
|
$compiler_params{$_} = 1 for keys %params;
|
|
|
|
%actparms = ();
|
|
|
|
if ( $family == F_IPV4 ) {
|
|
$globals{SHAREDIR} = '/usr/share/shorewall';
|
|
$globals{CONFDIR} = '/etc/shorewall';
|
|
$globals{PRODUCT} = 'shorewall';
|
|
$config{IPTABLES} = undef;
|
|
$validlevels{ULOG} = 'ULOG',
|
|
} else {
|
|
$globals{SHAREDIR} = '/usr/share/shorewall6';
|
|
$globals{CONFDIR} = '/etc/shorewall6';
|
|
$globals{PRODUCT} = 'shorewall6';
|
|
$config{IP6TABLES} = undef;
|
|
}
|
|
}
|
|
|
|
my @abbr = qw( Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec );
|
|
|
|
#
|
|
# Issue a Warning Message
|
|
#
|
|
sub warning_message
|
|
{
|
|
my $linenumber = $currentlinenumber || 1;
|
|
my $currentlineinfo = $currentfile ? " : $currentfilename (line $linenumber)" : '';
|
|
our @localtime;
|
|
|
|
$| = 1; #Reset output buffering (flush any partially filled buffers).
|
|
|
|
if ( $log ) {
|
|
@localtime = localtime;
|
|
printf $log '%s %2d %02d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
}
|
|
|
|
if ( $confess ) {
|
|
print STDERR longmess( " WARNING: @_$currentlineinfo" );
|
|
print $log longmess( " WARNING: @_$currentlineinfo\n" ) if $log;
|
|
} else {
|
|
print STDERR " WARNING: @_$currentlineinfo\n";
|
|
print $log " WARNING: @_$currentlineinfo\n" if $log;
|
|
}
|
|
|
|
$| = 0; #Re-allow output buffering
|
|
}
|
|
|
|
sub cleanup() {
|
|
#
|
|
# Close files first in case we're running under Cygwin
|
|
#
|
|
close $script, $script = undef if $script;
|
|
close $perlscript, $perlscript = undef if $perlscript;
|
|
close $log, $log = undef if $log;
|
|
#
|
|
# Unlink temporary files
|
|
#
|
|
unlink ( $tempfile ), $tempfile = undef if $tempfile;
|
|
unlink ( $perlscriptname ), $perlscriptname = undef if $perlscriptname;
|
|
unlink ( @tempfiles ), @tempfiles = () if @tempfiles;
|
|
#
|
|
# Delete temporary chains
|
|
#
|
|
if ( $sillyname ) {
|
|
#
|
|
# We went through determine_capabilities()
|
|
#
|
|
qt1( "$iptables -F $sillyname" );
|
|
qt1( "$iptables -X $sillyname" );
|
|
qt1( "$iptables -F $sillyname1" );
|
|
qt1( "$iptables -X $sillyname1" );
|
|
qt1( "$iptables -t mangle -F $sillyname" );
|
|
qt1( "$iptables -t mangle -X $sillyname" );
|
|
$sillyname = '';
|
|
}
|
|
}
|
|
|
|
#
|
|
# Issue fatal error message and die
|
|
#
|
|
sub fatal_error {
|
|
my $linenumber = $currentlinenumber || 1;
|
|
my $currentlineinfo = $currentfile ? " : $currentfilename (line $linenumber)" : '';
|
|
|
|
$| = 1; #Reset output buffering (flush any partially filled buffers).
|
|
|
|
if ( $log ) {
|
|
our @localtime = localtime;
|
|
printf $log '%s %2d %02d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
|
|
if ( $confess ) {
|
|
print $log longmess( " ERROR: @_$currentlineinfo\n" );
|
|
} else {
|
|
print $log " ERROR: @_$currentlineinfo\n";
|
|
}
|
|
|
|
close $log;
|
|
$log = undef;
|
|
}
|
|
|
|
cleanup;
|
|
confess " ERROR: @_$currentlineinfo" if $confess;
|
|
die " ERROR: @_$currentlineinfo\n";
|
|
}
|
|
|
|
sub fatal_error1 {
|
|
$| = 1;
|
|
|
|
if ( $log ) {
|
|
our @localtime = localtime;
|
|
printf $log '%s %2d %02d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
|
|
if ( $debug ) {
|
|
print $log longmess( " ERROR: @_\n" );
|
|
} else {
|
|
print $log " ERROR: @_\n";
|
|
}
|
|
|
|
close $log;
|
|
$log = undef;
|
|
}
|
|
|
|
cleanup;
|
|
confess " ERROR: @_" if $debug;
|
|
die " ERROR: @_\n";
|
|
}
|
|
|
|
#
|
|
# C/C++-like assertion checker
|
|
#
|
|
sub assert( $ ) {
|
|
unless ( $_[0] ) {
|
|
my @caller0 = caller 0; # Where assert() was called
|
|
my @caller1 = caller 1; # Who called assert()
|
|
|
|
fatal_error "Internal error in $caller1[3] at $caller0[1] line $caller0[2]";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Convert value to decimal number
|
|
#
|
|
sub numeric_value ( $ ) {
|
|
my $mark = lc $_[0];
|
|
my $negative = ( $mark =~ s/^-// );
|
|
return undef unless $mark =~ /^(0x[a-f0-9]+|0[0-7]*|[1-9]\d*)$/;
|
|
no warnings;
|
|
$mark = ( $mark =~ /^0/ ? oct $mark : $mark );
|
|
use warnings;
|
|
$negative ? - $mark : $mark;
|
|
}
|
|
|
|
sub numeric_value1 ( $ ) {
|
|
no warnings;
|
|
my $val = numeric_value $_[0];
|
|
fatal_error "Invalid Number ($_[0])" unless defined $val;
|
|
$val;
|
|
use warnings;
|
|
}
|
|
|
|
sub hex_value( $ ) {
|
|
my $val = lc $_[0];
|
|
return undef unless $val =~ /^[a-fA-F0-9]+$/;
|
|
no warnings;
|
|
oct '0x' . $val;
|
|
use warnings;
|
|
}
|
|
|
|
#
|
|
# Strip off superfluous leading zeros from a hex number
|
|
#
|
|
sub normalize_hex( $ ) {
|
|
my $val = lc shift;
|
|
|
|
$val =~ s/^0// while $val =~ /^0/ && length $val > 1;
|
|
$val;
|
|
}
|
|
|
|
#
|
|
# Return the argument expressed in Hex
|
|
#
|
|
sub in_hex( $ ) {
|
|
sprintf '0x%x', $_[0];
|
|
}
|
|
|
|
sub in_hex2( $ ) {
|
|
sprintf '0x%02x', $_[0];
|
|
}
|
|
|
|
sub in_hex3( $ ) {
|
|
sprintf '0x%03x', $_[0];
|
|
}
|
|
|
|
sub in_hex4( $ ) {
|
|
sprintf '0x%04x', $_[0];
|
|
}
|
|
|
|
sub in_hex8( $ ) {
|
|
sprintf '0x%08x', $_[0];
|
|
}
|
|
|
|
sub in_hexp( $ ) {
|
|
sprintf '%x', $_[0];
|
|
}
|
|
|
|
#
|
|
# Write the arguments to the script file (if any) with the current indentation.
|
|
#
|
|
# Replaces leading spaces with tabs as appropriate and suppresses consecutive blank lines.
|
|
#
|
|
sub emit {
|
|
assert( $script_enabled );
|
|
|
|
if ( $script || $debug ) {
|
|
#
|
|
# 'compile' as opposed to 'check'
|
|
#
|
|
for ( @_ ) {
|
|
unless ( /^\s*$/ ) {
|
|
my $line = $_; # This copy is necessary because the actual arguments are almost always read-only.
|
|
$line =~ s/^\n// if $lastlineblank;
|
|
$line =~ s/^/$indent/gm if $indent;
|
|
$line =~ s/ /\t/gm;
|
|
print $script "$line\n" if $script;
|
|
$lastlineblank = ( substr( $line, -1, 1 ) eq "\n" );
|
|
|
|
if ( $debug ) {
|
|
$line =~ s/^\n//;
|
|
$line =~ s/\n/\nGS-----> /g;
|
|
print "GS-----> $line\n";
|
|
}
|
|
} else {
|
|
unless ( $lastlineblank ) {
|
|
print $script "\n" if $script;
|
|
print "GS-----> \n" if $debug;
|
|
}
|
|
|
|
$lastlineblank = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Version of emit() that writes to standard out
|
|
#
|
|
sub emitstd {
|
|
for ( @_ ) {
|
|
unless ( /^\s*$/ ) {
|
|
my $line = $_; # This copy is necessary because the actual arguments are almost always read-only.
|
|
$line =~ s/^\n// if $lastlineblank;
|
|
$line =~ s/^/$indent/gm if $indent;
|
|
$line =~ s/ /\t/gm;
|
|
print "$line\n";
|
|
$lastlineblank = ( substr( $line, -1, 1 ) eq "\n" );
|
|
} else {
|
|
print "\n" unless $lastlineblank;
|
|
$lastlineblank = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Write passed message to the script with newline but no indentation.
|
|
#
|
|
sub emit_unindented( $ ) {
|
|
assert( $script_enabled );
|
|
|
|
print $script "$_[0]\n" if $script;
|
|
}
|
|
|
|
#
|
|
# Write a progress_message2 command with surrounding blank lines to the output file.
|
|
#
|
|
sub save_progress_message( $ ) {
|
|
emit "\nprogress_message2 @_\n" if $script;
|
|
}
|
|
|
|
#
|
|
# Write a progress_message command to the output file.
|
|
#
|
|
sub save_progress_message_short( $ ) {
|
|
emit "progress_message $_[0]" if $script;
|
|
}
|
|
|
|
#
|
|
# Set $timestamp
|
|
#
|
|
sub set_timestamp( $ ) {
|
|
$timestamp = shift;
|
|
}
|
|
|
|
#
|
|
# Set $verbosity
|
|
#
|
|
sub set_verbosity( $ ) {
|
|
$verbosity = shift;
|
|
}
|
|
|
|
#
|
|
# Set $log and $log_verbosity
|
|
#
|
|
sub set_log ( $$ ) {
|
|
my ( $l, $v ) = @_;
|
|
|
|
if ( defined $v ) {
|
|
my $value = numeric_value( $v );
|
|
fatal_error "Invalid Log Verbosity ( $v )" unless defined($value) && ( $value >= -1 ) && ( $value <= 2);
|
|
$log_verbosity = $value;
|
|
}
|
|
|
|
if ( $l && $log_verbosity >= 0 ) {
|
|
unless ( open $log , '>>' , $l ) {
|
|
$log = undef;
|
|
fatal_error "Unable to open STARTUP_LOG ($l) for writing: $!";
|
|
}
|
|
} else {
|
|
$log_verbosity = -1;
|
|
}
|
|
}
|
|
|
|
sub close_log() {
|
|
close $log, $log = undef if $log;
|
|
}
|
|
|
|
#
|
|
# Set $command, $doing and $done
|
|
#
|
|
sub set_command( $$$ ) {
|
|
($command, $doing, $done) = @_;
|
|
}
|
|
|
|
#
|
|
# Print the current TOD to STDOUT.
|
|
#
|
|
sub timestamp() {
|
|
our @localtime = localtime;
|
|
printf '%02d:%02d:%02d ', @localtime[2,1,0];
|
|
}
|
|
|
|
#
|
|
# Write a message if $verbosity >= 2.
|
|
#
|
|
sub progress_message {
|
|
my $havelocaltime = 0;
|
|
|
|
if ( $verbosity > 1 || $log_verbosity > 1 ) {
|
|
my $line = "@_";
|
|
my $leading = $line =~ /^(\s+)/ ? $1 : '';
|
|
$line =~ s/\s+/ /g;
|
|
|
|
if ( $verbosity > 1 ) {
|
|
timestamp, $havelocaltime = 1 if $timestamp;
|
|
#
|
|
# We use this function to display messages containing raw config file images which may contains tabs (including multiple tabs in succession).
|
|
# The following makes such messages look more readable and uniform
|
|
#
|
|
print "${leading}${line}\n";
|
|
}
|
|
|
|
if ( $log_verbosity > 1 ) {
|
|
our @localtime;
|
|
|
|
@localtime = localtime unless $havelocaltime;
|
|
|
|
printf $log '%s %2d %2d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
print $log "${leading}${line}\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
sub progress_message_nocompress {
|
|
my $havelocaltime = 0;
|
|
|
|
if ( $verbosity > 1 ) {
|
|
timestamp, $havelocaltime = 1 if $timestamp;
|
|
print "@_\n";
|
|
}
|
|
|
|
if ( $log_verbosity > 1 ) {
|
|
our @localtime;
|
|
|
|
@localtime = localtime unless $havelocaltime;
|
|
|
|
printf $log '%s %2d %2d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
print $log "@_\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Write a message if $verbosity >= 1
|
|
#
|
|
sub progress_message2 {
|
|
my $havelocaltime = 0;
|
|
|
|
if ( $verbosity > 0 ) {
|
|
timestamp, $havelocaltime = 1 if $timestamp;
|
|
print "@_\n";
|
|
}
|
|
|
|
if ( $log_verbosity > 0 ) {
|
|
our @localtime;
|
|
|
|
@localtime = localtime unless $havelocaltime;
|
|
|
|
printf $log '%s %2d %2d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
print $log "@_\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Write a message if $verbosity >= 0
|
|
#
|
|
sub progress_message3 {
|
|
my $havelocaltime = 0;
|
|
|
|
if ( $verbosity >= 0 ) {
|
|
timestamp, $havelocaltime = 1 if $timestamp;
|
|
print "@_\n";
|
|
}
|
|
|
|
if ( $log_verbosity >= 0 ) {
|
|
our @localtime;
|
|
|
|
@localtime = localtime unless $havelocaltime;
|
|
|
|
printf $log '%s %2d %2d:%02d:%02d ', $abbr[$localtime[4]], @localtime[3,2,1,0];
|
|
print $log "@_\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Push/Pop Indent
|
|
#
|
|
sub push_indent() {
|
|
if ( $indent2 ) {
|
|
$indent2 = '';
|
|
$indent = $indent1 = $indent1 . "\t";
|
|
} else {
|
|
$indent2 = ' ';
|
|
$indent = $indent1 . $indent2;
|
|
}
|
|
}
|
|
|
|
sub pop_indent() {
|
|
if ( $indent2 ) {
|
|
$indent2 = '';
|
|
$indent = $indent1;
|
|
} else {
|
|
$indent1 = substr( $indent1 , 0, -1 );
|
|
$indent2 = ' ';
|
|
$indent = $indent1 . $indent2;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Create the temporary script file -- the passed file name is the name of the final file.
|
|
# We create a temporary file in the same directory so that we can use rename to finalize it.
|
|
#
|
|
sub create_temp_script( $$ ) {
|
|
my ( $scriptfile, $export ) = @_;
|
|
my $suffix;
|
|
|
|
if ( $scriptfile eq '-' ) {
|
|
$verbosity = -1;
|
|
$script = undef;
|
|
open( $script, '>&STDOUT' ) or fatal_error "Open of STDOUT failed";
|
|
$file = '-';
|
|
return 1;
|
|
}
|
|
|
|
eval {
|
|
( $file, $dir, $suffix ) = fileparse( $scriptfile );
|
|
};
|
|
|
|
cleanup, die if $@;
|
|
|
|
fatal_error "$dir is a Symbolic Link" if -l $dir;
|
|
fatal_error "Directory $dir does not exist" unless -d _;
|
|
fatal_error "Directory $dir is not writable" unless -w _;
|
|
fatal_error "$scriptfile is a Symbolic Link" if -l $scriptfile;
|
|
fatal_error "$scriptfile is a Directory" if -d _;
|
|
fatal_error "$scriptfile exists and is not a compiled script" if -e _ && ! -x _;
|
|
fatal_error "An exported \u$globals{PRODUCT} compiled script may not be named '$globals{PRODUCT}'" if $export && "$file" eq $globals{PRODUCT} && $suffix eq '';
|
|
|
|
eval {
|
|
$dir = abs_path $dir unless $dir =~ m|^/|; # Work around http://rt.cpan.org/Public/Bug/Display.html?id=13851
|
|
( $script, $tempfile ) = tempfile ( 'tempfileXXXX' , DIR => $dir );
|
|
};
|
|
|
|
fatal_error "Unable to create temporary file in directory $dir" if $@;
|
|
|
|
$file = "$file.$suffix" if $suffix;
|
|
$dir .= '/' unless substr( $dir, -1, 1 ) eq '/';
|
|
$file = $dir . $file;
|
|
|
|
}
|
|
|
|
#
|
|
# Finalize the script file
|
|
#
|
|
sub finalize_script( $ ) {
|
|
my $export = $_[0];
|
|
close $script;
|
|
$script = 0;
|
|
|
|
if ( $file ne '-' ) {
|
|
rename $tempfile, $file or fatal_error "Cannot Rename $tempfile to $file: $!";
|
|
chmod 0700, $file or fatal_error "Cannot secure $file for execute access";
|
|
progress_message3 "Shorewall configuration compiled to $file" unless $export;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Create the temporary aux config file.
|
|
#
|
|
sub create_temp_aux_config() {
|
|
eval {
|
|
( $script, $tempfile ) = tempfile ( 'tempfileXXXX' , DIR => $dir );
|
|
};
|
|
|
|
cleanup, die if $@;
|
|
}
|
|
|
|
#
|
|
# Finalize the aux config file.
|
|
#
|
|
sub finalize_aux_config() {
|
|
close $script;
|
|
$script = 0;
|
|
rename $tempfile, "$file.conf" or fatal_error "Cannot Rename $tempfile to $file.conf: $!";
|
|
progress_message3 "Shorewall configuration compiled to $file";
|
|
}
|
|
|
|
#
|
|
# Enable writes to the script file
|
|
#
|
|
sub enable_script() {
|
|
$script_enabled = 1;
|
|
}
|
|
|
|
#
|
|
# Disable writes to the script file
|
|
#
|
|
sub disable_script() {
|
|
$script_enabled = 0;
|
|
}
|
|
|
|
#
|
|
# Set $config{CONFIG_PATH}
|
|
#
|
|
sub set_config_path( $ ) {
|
|
$config{CONFIG_PATH} = shift;
|
|
}
|
|
|
|
#
|
|
# Set $debug
|
|
#
|
|
sub set_debug( $$ ) {
|
|
$debug = shift;
|
|
$confess = shift;
|
|
$confess ||= $debug;
|
|
}
|
|
|
|
#
|
|
# Search the CONFIG_PATH for the passed file
|
|
#
|
|
sub find_file($)
|
|
{
|
|
my $filename=$_[0];
|
|
|
|
return $filename if $filename =~ '/';
|
|
|
|
my $directory;
|
|
|
|
for $directory ( @config_path ) {
|
|
my $file = "$directory$filename";
|
|
return $file if -f $file;
|
|
}
|
|
|
|
"$globals{CONFDIR}/$filename";
|
|
}
|
|
|
|
sub split_list( $$ ) {
|
|
my ($list, $type ) = @_;
|
|
|
|
fatal_error "Invalid $type list ($list)" if $list =~ /^,|,$|,,|!,|,!$/;
|
|
|
|
split /,/, $list;
|
|
}
|
|
|
|
sub split_list1( $$ ) {
|
|
my ($list, $type ) = @_;
|
|
|
|
fatal_error "Invalid $type list ($list)" if $list =~ /^,|,$|,,|!,|,!$/;
|
|
|
|
my @list1 = split /,/, $list;
|
|
my @list2;
|
|
my $element = '';
|
|
|
|
for ( @list1 ) {
|
|
my $count;
|
|
|
|
if ( ( $count = tr/(/(/ ) > 0 ) {
|
|
fatal_error "Invalid $type list ($list)" if $element || $count > 1;
|
|
s/\(//;
|
|
if ( ( $count = tr/)/)/ ) > 0 ) {
|
|
fatal_error "Invalid $type list ($list)" if $count > 1;
|
|
s/\)//;
|
|
push @list2 , $_;
|
|
} else {
|
|
$element = $_;
|
|
}
|
|
} elsif ( ( $count = tr/)/)/ ) > 0 ) {
|
|
fatal_error "Invalid $type list ($list)" unless $element && $count == 1;
|
|
s/\)//;
|
|
push @list2, join ',', $element, $_;
|
|
$element = '';
|
|
} elsif ( $element ) {
|
|
$element = join ',', $element , $_;
|
|
} else {
|
|
push @list2 , $_;
|
|
}
|
|
}
|
|
|
|
@list2;
|
|
}
|
|
|
|
#
|
|
# Pre-process a line from a configuration file.
|
|
|
|
# ensure that it has an appropriate number of columns.
|
|
# supply '-' in omitted trailing columns.
|
|
#
|
|
sub split_line( $$$ ) {
|
|
my ( $mincolumns, $maxcolumns, $description ) = @_;
|
|
|
|
fatal_error "Shorewall Configuration file entries may not contain single quotes, double quotes, single back quotes or backslashes" if $currentline =~ /["'`\\]/;
|
|
fatal_error "Non-ASCII gunk in file" if $currentline =~ /[^\s[:print:]]/;
|
|
|
|
my @line = split( ' ', $currentline );
|
|
|
|
my $line = @line;
|
|
|
|
fatal_error "Invalid $description entry (too many columns)" if $line > $maxcolumns;
|
|
|
|
$line-- while $line > 0 && $line[$line-1] eq '-';
|
|
|
|
fatal_error "Invalid $description entry (too few columns)" if $line < $mincolumns;
|
|
|
|
push @line, '-' while @line < $maxcolumns;
|
|
|
|
@line;
|
|
}
|
|
|
|
#
|
|
# Version of 'split_line' used on files with exceptions
|
|
#
|
|
sub split_line1( $$$;$ ) {
|
|
my ( $mincolumns, $maxcolumns, $description, $nopad) = @_;
|
|
|
|
fatal_error "Shorewall Configuration file entries may not contain double quotes, single back quotes or backslashes" if $currentline =~ /["`\\]/;
|
|
|
|
my @line = split( ' ', $currentline );
|
|
|
|
$nopad = { COMMENT => 0 } unless $nopad;
|
|
|
|
my $first = $line[0];
|
|
my $columns = $nopad->{$first};
|
|
|
|
if ( defined $columns ) {
|
|
fatal_error "Invalid $first entry" if $columns && @line != $columns;
|
|
return @line
|
|
}
|
|
|
|
fatal_error "Shorewall Configuration file entries may not contain single quotes" if $currentline =~ /'/;
|
|
|
|
my $line = @line;
|
|
|
|
fatal_error "Invalid $description entry (too many columns)" if $line > $maxcolumns;
|
|
|
|
$line-- while $line > 0 && $line[$line-1] eq '-';
|
|
|
|
fatal_error "Invalid $description entry (too few columns)" if $line < $mincolumns;
|
|
|
|
push @line, '-' while @line < $maxcolumns;
|
|
|
|
@line;
|
|
}
|
|
|
|
#
|
|
# Open a file, setting $currentfile. Returns the file's absolute pathname if the file
|
|
# exists, is non-empty and was successfully opened. Terminates with a fatal error
|
|
# if the file exists, is non-empty, but the open fails.
|
|
#
|
|
sub do_open_file( $ ) {
|
|
my $fname = $_[0];
|
|
open $currentfile, '<', $fname or fatal_error "Unable to open $fname: $!";
|
|
$currentlinenumber = 0;
|
|
$currentfilename = $fname;
|
|
}
|
|
|
|
sub open_file( $ ) {
|
|
my $fname = find_file $_[0];
|
|
|
|
assert( ! defined $currentfile );
|
|
|
|
if ( -f $fname && -s _ ) {
|
|
$first_entry = 0;
|
|
do_open_file $fname;;
|
|
} else {
|
|
'';
|
|
}
|
|
}
|
|
|
|
#
|
|
# Pop the include stack
|
|
#
|
|
sub pop_include() {
|
|
my $arrayref = pop @includestack;
|
|
|
|
if ( $arrayref ) {
|
|
( $currentfile, $currentfilename, $currentlinenumber ) = @$arrayref;
|
|
} else {
|
|
$currentfile = undef;
|
|
}
|
|
}
|
|
|
|
#
|
|
# This function is normally called below in read_a_line() when EOF is reached. Clients of the
|
|
# module may also call the function to close the file before EOF
|
|
#
|
|
sub close_file() {
|
|
if ( $currentfile ) {
|
|
my $result = close $currentfile;
|
|
|
|
pop_include;
|
|
|
|
fatal_error "SHELL Script failed" unless $result;
|
|
|
|
$first_entry = 0;
|
|
|
|
}
|
|
}
|
|
|
|
#
|
|
# Functions for copying files into the script
|
|
#
|
|
sub copy( $ ) {
|
|
assert( $script_enabled );
|
|
|
|
if ( $script ) {
|
|
my $file = $_[0];
|
|
|
|
open IF , $file or fatal_error "Unable to open $file: $!";
|
|
|
|
while ( <IF> ) {
|
|
chomp;
|
|
if ( /^\s*$/ ) {
|
|
print $script "\n" unless $lastlineblank;
|
|
$lastlineblank = 1;
|
|
} else {
|
|
if ( $indent ) {
|
|
s/^(\s*)/$indent1$1$indent2/;
|
|
s/ /\t/ if $indent2;
|
|
}
|
|
|
|
print $script $_;
|
|
print $script "\n";
|
|
$lastlineblank = 0;
|
|
}
|
|
}
|
|
|
|
close IF;
|
|
}
|
|
}
|
|
|
|
#
|
|
# This variant of copy handles line continuation, 'here documents' and INCLUDE
|
|
#
|
|
sub copy1( $ ) {
|
|
assert( $script_enabled );
|
|
|
|
my $result = 0;
|
|
|
|
if ( $script || $debug ) {
|
|
my ( $do_indent, $here_documents ) = ( 1, '');
|
|
|
|
open_file( $_[0] );
|
|
|
|
while ( $currentfile ) {
|
|
while ( <$currentfile> ) {
|
|
$currentlinenumber++;
|
|
|
|
chomp;
|
|
|
|
if ( /^${here_documents}\s*$/ ) {
|
|
if ( $script ) {
|
|
print $script $here_documents if $here_documents;
|
|
print $script "\n";
|
|
}
|
|
|
|
if ( $debug ) {
|
|
print "GS-----> $here_documents" if $here_documents;
|
|
print "GS----->\n";
|
|
}
|
|
|
|
$do_indent = 1;
|
|
$here_documents = '';
|
|
next;
|
|
}
|
|
|
|
if ( $do_indent && /.*<<\s*([^ ]+)s*(.*)/ ) {
|
|
$here_documents = $1;
|
|
s/^(\s*)/$indent1$1$indent2/;
|
|
s/ /\t/ if $indent2;
|
|
$do_indent = 0;
|
|
|
|
if ( $script ) {
|
|
print $script $_;
|
|
print $script "\n";
|
|
}
|
|
|
|
if ( $debug ) {
|
|
s/\n/\nGS-----> /g;
|
|
print "GS-----> $_\n";
|
|
}
|
|
|
|
$result = 1;
|
|
next;
|
|
}
|
|
|
|
if ( $do_indent ) {
|
|
if ( /^\s*INCLUDE\b/ ) {
|
|
my @line = split / /;
|
|
|
|
fatal_error "Invalid INCLUDE command" if @line != 2;
|
|
fatal_error "INCLUDEs nested too deeply" if @includestack >= 4;
|
|
|
|
my $filename = find_file $line[1];
|
|
|
|
fatal_error "INCLUDE file $filename not found" unless -f $filename;
|
|
fatal_error "Directory ($filename) not allowed in INCLUDE" if -d _;
|
|
|
|
if ( -s _ ) {
|
|
push @includestack, [ $currentfile, $currentfilename, $currentlinenumber ];
|
|
$currentfile = undef;
|
|
do_open_file $filename;
|
|
} else {
|
|
$currentlinenumber = 0;
|
|
}
|
|
|
|
next;
|
|
}
|
|
|
|
if ( $indent ) {
|
|
s/^(\s*)/$indent1$1$indent2/;
|
|
s/ /\t/ if $indent2;
|
|
}
|
|
}
|
|
|
|
if ( $script ) {
|
|
print $script $_;
|
|
print $script "\n";
|
|
}
|
|
|
|
$do_indent = ! ( $here_documents || /\\$/ );
|
|
|
|
$result = 1 unless $result || /^\s*$/ || /^\s*#/;
|
|
|
|
if ( $debug ) {
|
|
s/\n/\nGS-----> /g;
|
|
print "GS-----> $_\n";
|
|
}
|
|
}
|
|
|
|
close_file;
|
|
}
|
|
}
|
|
|
|
$lastlineblank = 0;
|
|
|
|
$result;
|
|
}
|
|
|
|
#
|
|
# This one drops header comments and replaces them with a three-line banner
|
|
#
|
|
sub copy2( $$ ) {
|
|
my ( $file, $trace ) = @_;
|
|
|
|
assert( $script_enabled );
|
|
my $empty = 1;
|
|
|
|
if ( $script || $trace ) {
|
|
my $file = $_[0];
|
|
|
|
open IF , $file or fatal_error "Unable to open $file: $!";
|
|
|
|
while ( <IF> ) {
|
|
$empty = 0, last unless /^#/;
|
|
}
|
|
|
|
unless ( $empty ) {
|
|
emit <<EOF;
|
|
################################################################################
|
|
# Functions imported from $file
|
|
################################################################################
|
|
EOF
|
|
chomp;
|
|
emit( $_ ) unless /^\s*$/;
|
|
|
|
while ( <IF> ) {
|
|
chomp;
|
|
if ( /^\s*$/ ) {
|
|
unless ( $lastlineblank ) {
|
|
print $script "\n" if $script;
|
|
print "GS----->\n" if $trace;
|
|
}
|
|
|
|
$lastlineblank = 1;
|
|
} else {
|
|
if ( $indent ) {
|
|
s/^(\s*)/$indent1$1$indent2/;
|
|
s/ /\t/ if $indent2;
|
|
}
|
|
|
|
if ( $script ) {
|
|
print $script $_;
|
|
print $script "\n";
|
|
}
|
|
|
|
if ( $trace ) {
|
|
s/\n/GS-----> \n/g;
|
|
print "GS-----> $_\n";
|
|
}
|
|
|
|
$lastlineblank = 0;
|
|
}
|
|
}
|
|
|
|
close IF;
|
|
|
|
unless ( $lastlineblank ) {
|
|
print $script "\n" if $script;
|
|
print "GS----->\n" if $trace;
|
|
}
|
|
|
|
emit( '################################################################################',
|
|
"# End of imports from $file",
|
|
'################################################################################' );
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# The following two functions allow module clients to nest opens. This happens frequently
|
|
# in the Rules module.
|
|
#
|
|
sub push_open( $ ) {
|
|
|
|
push @includestack, [ $currentfile, $currentfilename, $currentlinenumber ];
|
|
my @a = @includestack;
|
|
push @openstack, \@a;
|
|
@includestack = ();
|
|
$currentfile = undef;
|
|
open_file( $_[0] );
|
|
|
|
}
|
|
|
|
sub pop_open() {
|
|
@includestack = @{pop @openstack};
|
|
pop_include;
|
|
}
|
|
|
|
#
|
|
# This function is called by in-line PERL to generate a line of input for the current file.
|
|
# If the in-line PERL returns an indication of success, then the generated lines will be
|
|
# processed as regular file input.
|
|
#
|
|
sub shorewall {
|
|
unless ( $perlscript ) {
|
|
fatal_error "shorewall() may not be called in this context" unless $currentfile;
|
|
|
|
$dir ||= '/tmp/';
|
|
|
|
eval {
|
|
( $perlscript, $perlscriptname ) = tempfile ( 'perlscriptXXXX' , DIR => $dir );
|
|
};
|
|
|
|
fatal_error "Unable to create temporary file in directory $dir" if $@;
|
|
}
|
|
|
|
print $perlscript "@_\n";
|
|
}
|
|
|
|
#
|
|
# We don't announce that we are checking/compiling a file until we determine that the file contains
|
|
# at least one non-blank, non-commentary line.
|
|
#
|
|
# The argument to this function may be either a scalar or a function reference. When the first
|
|
# non-blank/non-commentary line is reached:
|
|
#
|
|
# - if a function reference was passed to first_entry(), that function is called
|
|
# - otherwise, the argument to first_entry() is passed to progress_message2().
|
|
#
|
|
# We do this processing in read_a_line() rather than in the higher-level routines because
|
|
# Embedded Shell/Perl scripts are processed out of read_a_line(). If we were to defer announcement
|
|
# until we get back to the caller of read_a_line(), we could issue error messages about parsing and
|
|
# running scripts in the file before we'd even indicated that we are processing it.
|
|
#
|
|
sub first_entry( $ ) {
|
|
$first_entry = $_[0];
|
|
my $reftype = reftype $first_entry;
|
|
if ( $reftype ) {
|
|
fatal_error "Invalid argument to first_entry()" unless $reftype eq 'CODE';
|
|
}
|
|
}
|
|
|
|
sub embedded_shell( $ ) {
|
|
my $multiline = shift;
|
|
|
|
fatal_error "INCLUDEs nested too deeply" if @includestack >= 4;
|
|
my ( $command, $linenumber ) = ( "/bin/sh -c '$currentline", $currentlinenumber );
|
|
|
|
if ( $multiline ) {
|
|
#
|
|
# Multi-line script
|
|
#
|
|
fatal_error "Invalid BEGIN SHELL directive" unless $currentline =~ /^\s*$/;
|
|
$command .= "\n";
|
|
|
|
my $last = 0;
|
|
|
|
while ( <$currentfile> ) {
|
|
$currentlinenumber++;
|
|
last if $last = s/^\s*END(\s+SHELL)?\s*;?//;
|
|
$command .= $_;
|
|
}
|
|
|
|
fatal_error ( "Missing END SHELL" ) unless $last;
|
|
fatal_error ( "Invalid END SHELL directive" ) unless /^\s*$/;
|
|
}
|
|
|
|
$command .= q(');
|
|
|
|
push @includestack, [ $currentfile, $currentfilename, $currentlinenumber ];
|
|
$currentfile = undef;
|
|
open $currentfile , '-|', $command or fatal_error qq(Shell Command failed);
|
|
$currentfilename = "SHELL\@$currentfilename:$currentlinenumber";
|
|
$currentline = '';
|
|
$currentlinenumber = 0;
|
|
}
|
|
|
|
sub embedded_perl( $ ) {
|
|
my $multiline = shift;
|
|
|
|
my ( $command , $linenumber ) = ( qq(package Shorewall::User;\nno strict;\nuse Shorewall::Config qw/shorewall/;\n# line $currentlinenumber "$currentfilename"\n$currentline), $currentlinenumber );
|
|
|
|
if ( $multiline ) {
|
|
#
|
|
# Multi-line script
|
|
#
|
|
fatal_error "Invalid BEGIN PERL directive" unless $currentline =~ /^\s*$/;
|
|
$command .= "\n";
|
|
|
|
my $last = 0;
|
|
|
|
while ( <$currentfile> ) {
|
|
$currentlinenumber++;
|
|
last if $last = s/^\s*END(\s+PERL)?\s*;?//;
|
|
$command .= $_;
|
|
}
|
|
|
|
fatal_error ( "Missing END PERL" ) unless $last;
|
|
fatal_error ( "Invalid END PERL directive" ) unless /^\s*$/;
|
|
}
|
|
|
|
unless (my $return = eval $command ) {
|
|
if ( $@ ) {
|
|
#
|
|
# Perl found the script offensive or the script itself died
|
|
#
|
|
$@ =~ s/, <\$currentfile> line \d+//g;
|
|
fatal_error1 "$@";
|
|
}
|
|
|
|
unless ( defined $return ) {
|
|
fatal_error "Perl Script failed: $!" if $!;
|
|
fatal_error "Perl Script failed";
|
|
}
|
|
|
|
fatal_error "Perl Script Returned False";
|
|
}
|
|
|
|
if ( $perlscript ) {
|
|
fatal_error "INCLUDEs nested too deeply" if @includestack >= 4;
|
|
|
|
close $perlscript or assert(0);
|
|
|
|
$perlscript = undef;
|
|
|
|
push @includestack, [ $currentfile, $currentfilename, $currentlinenumber ];
|
|
$currentfile = undef;
|
|
|
|
open $currentfile, '<', $perlscriptname or fatal_error "Unable to open Perl Script $perlscriptname";
|
|
|
|
push @tempfiles, $perlscriptname unless unlink $perlscriptname; #unlink fails on Cygwin
|
|
|
|
$perlscriptname = '';
|
|
|
|
$currentfilename = "PERL\@$currentfilename:$linenumber";
|
|
$currentline = '';
|
|
$currentlinenumber = 0;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Push/pop action params
|
|
#
|
|
sub push_action_params( $ ) {
|
|
my @params = split /,/, $_[0];
|
|
my $oldparams = \%actparms;
|
|
|
|
%actparms = ();
|
|
|
|
for ( my $i = 1; $i <= @params; $i++ ) {
|
|
my $val = $params[$i - 1];
|
|
|
|
$actparms{$i} = $val eq '-' ? '' : $val eq '--' ? '-' : $val;
|
|
}
|
|
|
|
$oldparams;
|
|
}
|
|
|
|
sub pop_action_params( $ ) {
|
|
my $oldparms = shift;
|
|
%actparms = %$oldparms;
|
|
}
|
|
|
|
sub default_action_params {
|
|
my $val;
|
|
|
|
for ( my $i = 1; 1; $i++ ) {
|
|
last unless defined ( $val = shift );
|
|
my $curval = $actparms{$i};
|
|
$actparms{$i} =$val eq '-' ? '' : $val eq '--' ? '-' : $val unless defined $curval && $curval ne '';
|
|
}
|
|
}
|
|
|
|
#
|
|
# Read a line from the current include stack.
|
|
#
|
|
# - Ignore blank or comment-only lines.
|
|
# - Remove trailing comments.
|
|
# - Handle Line Continuation
|
|
# - Handle embedded SHELL and PERL scripts
|
|
# - Expand shell variables from %params and %ENV.
|
|
# - Handle INCLUDE <filename>
|
|
#
|
|
|
|
sub read_a_line(;$) {
|
|
my $embedded_enabled = defined $_[0] ? shift : 1;
|
|
|
|
while ( $currentfile ) {
|
|
|
|
$currentline = '';
|
|
$currentlinenumber = 0;
|
|
|
|
while ( <$currentfile> ) {
|
|
|
|
$currentlinenumber = $. unless $currentlinenumber;
|
|
|
|
chomp;
|
|
#
|
|
# Suppress leading whitespace in certain continuation lines
|
|
#
|
|
s/^\s*// if $currentline =~ /[,:]$/;
|
|
#
|
|
# If this isn't a continued line, remove trailing comments. Note that
|
|
# the result may now end in '\'.
|
|
#
|
|
s/\s*#.*$// unless /\\$/;
|
|
#
|
|
# Continuation
|
|
#
|
|
chop $currentline, next if substr( ( $currentline .= $_ ), -1, 1 ) eq '\\';
|
|
#
|
|
# Now remove concatinated comments
|
|
#
|
|
$currentline =~ s/#.*$//;
|
|
#
|
|
# Ignore ( concatenated ) Blank Lines
|
|
#
|
|
$currentline = '', $currentlinenumber = 0, next if $currentline =~ /^\s*$/;
|
|
#
|
|
# Line not blank -- Handle any first-entry message/capabilities check
|
|
#
|
|
if ( $first_entry ) {
|
|
#
|
|
# $first_entry can contain either a function reference or a message. If it
|
|
# contains a reference, call the function -- otherwise issue the message
|
|
#
|
|
reftype( $first_entry ) ? $first_entry->() : progress_message2( $first_entry );
|
|
$first_entry = 0;
|
|
}
|
|
#
|
|
# Must check for shell/perl before doing variable expansion
|
|
#
|
|
if ( $embedded_enabled ) {
|
|
if ( $currentline =~ s/^\s*(BEGIN\s+)?SHELL\s*;?// ) {
|
|
embedded_shell( $1 );
|
|
next;
|
|
}
|
|
|
|
if ( $currentline =~ s/^\s*(BEGIN\s+)?PERL\s*\;?// ) {
|
|
embedded_perl( $1 );
|
|
next;
|
|
}
|
|
}
|
|
|
|
my $count = 0;
|
|
#
|
|
# Expand Shell Variables using %params and %actparms
|
|
#
|
|
# $1 $2 $3 - $4
|
|
while ( $currentline =~ m( ^(.*?) \$({)? (\w+) (?(2)}) (.*)$ )x ) {
|
|
|
|
my ( $first, $var, $rest ) = ( $1, $3, $4);
|
|
|
|
my $val;
|
|
|
|
if ( $var =~ /^\d+$/ ) {
|
|
fatal_error "Undefined parameter (\$$var)" unless exists $actparms{$var};
|
|
$val = $actparms{$var};
|
|
} else {
|
|
fatal_error "Undefined shell variable (\$$var)" unless exists $params{$var};
|
|
$val = $params{$var};
|
|
}
|
|
|
|
$val = '' unless defined $val;
|
|
$currentline = join( '', $first , $val , $rest );
|
|
fatal_error "Variable Expansion Loop" if ++$count > 100;
|
|
}
|
|
|
|
if ( $currentline =~ /^\s*INCLUDE\s/ ) {
|
|
|
|
my @line = split ' ', $currentline;
|
|
|
|
fatal_error "Invalid INCLUDE command" if @line != 2;
|
|
fatal_error "INCLUDEs/Scripts nested too deeply" if @includestack >= 4;
|
|
|
|
my $filename = find_file $line[1];
|
|
|
|
fatal_error "INCLUDE file $filename not found" unless -f $filename;
|
|
fatal_error "Directory ($filename) not allowed in INCLUDE" if -d _;
|
|
|
|
if ( -s _ ) {
|
|
push @includestack, [ $currentfile, $currentfilename, $currentlinenumber ];
|
|
$currentfile = undef;
|
|
do_open_file $filename;
|
|
} else {
|
|
$currentlinenumber = 0;
|
|
}
|
|
|
|
$currentline = '';
|
|
} else {
|
|
print "IN===> $currentline\n" if $debug;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
close_file;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Simple version of the above. Doesn't do line concatenation, shell variable expansion or INCLUDE processing
|
|
#
|
|
sub read_a_line1() {
|
|
while ( $currentfile ) {
|
|
while ( $currentline = <$currentfile> ) {
|
|
next if $currentline =~ /^\s*#/;
|
|
chomp $currentline;
|
|
next if $currentline =~ /^\s*$/;
|
|
$currentline =~ s/#.*$//; # Remove Trailing Comments
|
|
fatal_error "Non-ASCII gunk in file" if $currentline =~ /[^\s[:print:]]/;
|
|
$currentlinenumber = $.;
|
|
print "IN===> $currentline\n" if $debug;
|
|
return 1;
|
|
}
|
|
|
|
close_file;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Provide the passed default value for the passed configuration variable
|
|
#
|
|
sub default ( $$ ) {
|
|
my ( $var, $val ) = @_;
|
|
|
|
$config{$var} = $val unless defined $config{$var} && $config{$var} ne '';
|
|
}
|
|
|
|
#
|
|
# Provide a default value for a yes/no configuration variable.
|
|
#
|
|
sub default_yes_no ( $$ ) {
|
|
my ( $var, $val ) = @_;
|
|
|
|
my $curval = $config{$var};
|
|
|
|
if ( defined $curval && $curval ne '' ) {
|
|
$curval = lc $curval;
|
|
|
|
if ( $curval eq 'no' ) {
|
|
$config{$var} = '';
|
|
} else {
|
|
fatal_error "Invalid value for $var ($val)" unless $curval eq 'yes';
|
|
}
|
|
} else {
|
|
$config{$var} = $val;
|
|
}
|
|
}
|
|
|
|
sub default_yes_no_ipv4 ( $$ ) {
|
|
my ( $var, $val ) = @_;
|
|
default_yes_no( $var, $val );
|
|
warning_message "$var=Yes is ignored for IPv6" if $family == F_IPV6 && $config{$var};
|
|
}
|
|
|
|
sub numeric_option( $$$ ) {
|
|
my ( $option, $default, $min ) = @_;
|
|
|
|
my $value = $config{$option};
|
|
|
|
my $val = $default;
|
|
|
|
if ( defined $value && $value ne '' ) {
|
|
$val = numeric_value $value;
|
|
fatal_error "Invalid value ($value) for '$option'" unless defined $val && $val <= 32;
|
|
}
|
|
|
|
$val = $min if $val < $min;
|
|
|
|
$config{$option} = $val;
|
|
}
|
|
|
|
sub make_mask( $ ) {
|
|
0xffffffff >> ( 32 - $_[0] );
|
|
}
|
|
|
|
my @suffixes = qw(group range threshold nlgroup cprange qthreshold);
|
|
|
|
#
|
|
# Validate a log level -- Drop the trailing '!' and translate to numeric value if appropriate"
|
|
#
|
|
sub level_error( $ ) {
|
|
fatal_error "Invalid log level ($_[0])";
|
|
}
|
|
|
|
sub validate_level( $ ) {
|
|
my $rawlevel = $_[0];
|
|
my $level = uc $rawlevel;
|
|
|
|
if ( defined $level && $level ne '' ) {
|
|
$level =~ s/!$//;
|
|
my $value = $validlevels{$level};
|
|
|
|
if ( defined $value ) {
|
|
require_capability ( 'LOG_TARGET' , 'A log level other than NONE', 's' ) unless $value eq '';
|
|
return $value;
|
|
}
|
|
|
|
if ( $level =~ /^[0-7]$/ ) {
|
|
require_capability ( 'LOG_TARGET' , 'A log level other than NONE', 's' );
|
|
return $level;
|
|
}
|
|
|
|
if ( $level =~ /^(NFLOG|ULOG)[(](.*)[)]$/ ) {
|
|
my $olevel = $1;
|
|
my @options = split /,/, $2;
|
|
my $prefix = lc $olevel;
|
|
my $index = $prefix eq 'ulog' ? 3 : 0;
|
|
|
|
level_error( $level ) if @options > 3;
|
|
|
|
for ( @options ) {
|
|
if ( defined $_ and $_ ne '' ) {
|
|
level_error( $level ) unless /^\d+/;
|
|
$olevel .= " --${prefix}-$suffixes[$index] $_";
|
|
}
|
|
|
|
$index++;
|
|
}
|
|
|
|
require_capability ( 'LOG_TARGET' , 'A log level other than NONE', 's' );
|
|
return $olevel;
|
|
}
|
|
|
|
if ( $level =~ /^NFLOG --/ or $level =~ /^ULOG --/ ) {
|
|
require_capability ( 'LOG_TARGET' , 'A log level other than NONE', 's' );
|
|
return $rawlevel;
|
|
}
|
|
|
|
if ( $level eq 'LOGMARK' ) {
|
|
require_capability ( 'LOG_TARGET' , 'A log level other than NONE', 's' );
|
|
require_capability( 'LOGMARK_TARGET' , 'LOGMARK', 's' );
|
|
return 'LOGMARK';
|
|
}
|
|
|
|
level_error( $rawlevel );
|
|
}
|
|
|
|
'';
|
|
}
|
|
|
|
#
|
|
# Validate a log level and supply default
|
|
#
|
|
sub default_log_level( $$ ) {
|
|
my ( $level, $default ) = @_;
|
|
|
|
my $value = $config{$level};
|
|
|
|
unless ( defined $value && $value ne '' ) {
|
|
$config{$level} = $default;
|
|
} else {
|
|
$config{$level} = validate_level $value;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Check a tri-valued variable
|
|
#
|
|
sub check_trivalue( $$ ) {
|
|
my ( $var, $default) = @_;
|
|
my $val = $config{$var};
|
|
|
|
if ( defined $val ) {
|
|
$val = lc $val;
|
|
if ( $val eq 'yes' || $val eq 'on' ) {
|
|
$config{$var} = 'on';
|
|
} elsif ( $val eq 'no' || $val eq 'off' ) {
|
|
$config{$var} = 'off';
|
|
} elsif ( $val eq 'keep' ) {
|
|
$config{$var} = '';
|
|
} elsif ( $val eq '' ) {
|
|
$config{$var} = $default
|
|
} else {
|
|
fatal_error "Invalid value ($val) for $var";
|
|
}
|
|
} else {
|
|
$config{$var} = $default
|
|
}
|
|
}
|
|
|
|
#
|
|
# Produce a report of the detected capabilities
|
|
#
|
|
sub report_capability( $ ) {
|
|
my $cap = $_[0];
|
|
print " $capdesc{$cap}: ";
|
|
if ( $cap eq 'CAPVERSION' || $cap eq 'KERNELVERSION') {
|
|
my $version = $capabilities{$cap};
|
|
printf "%d.%d.%d\n", int( $version / 10000 ) , int ( ( $version % 10000 ) / 100 ) , int ( $version % 100 );
|
|
} else {
|
|
print $capabilities{$cap} ? "Available\n" : "Not Available\n";
|
|
}
|
|
}
|
|
|
|
sub report_capabilities() {
|
|
if ( $verbosity > 1 ) {
|
|
print "Shorewall has detected the following capabilities:\n";
|
|
|
|
for my $cap ( sort { $capdesc{$a} cmp $capdesc{$b} } keys %capabilities ) {
|
|
report_capability $cap;
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Search the current PATH for the passed executable
|
|
#
|
|
sub which( $ ) {
|
|
my $prog = $_[0];
|
|
|
|
for ( split /:/, $config{PATH} ) {
|
|
return "$_/$prog" if -x "$_/$prog";
|
|
}
|
|
|
|
'';
|
|
}
|
|
|
|
#
|
|
# Load the kernel modules defined in the 'modules' file.
|
|
#
|
|
sub load_kernel_modules( ) {
|
|
my $moduleloader = which( 'modprobe' ) || ( which 'insmod' );
|
|
|
|
my $modulesdir = $config{MODULESDIR};
|
|
|
|
unless ( $modulesdir ) {
|
|
my $uname = `uname -r`;
|
|
fatal_error "The command 'uname -r' failed" unless $? == 0;
|
|
chomp $uname;
|
|
$modulesdir = "/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/ipv6/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset";
|
|
}
|
|
|
|
my @moduledirectories;
|
|
|
|
for ( split /:/, $modulesdir ) {
|
|
push @moduledirectories, $_ if -d $_;
|
|
}
|
|
|
|
if ( $moduleloader && @moduledirectories && open_file( $config{LOAD_HELPERS_ONLY} ? 'helpers' : 'modules' ) ) {
|
|
my %loadedmodules;
|
|
|
|
$loadedmodules{$_}++ for split_list( $config{DONT_LOAD}, 'module' );
|
|
|
|
progress_message2 "Loading Modules...";
|
|
|
|
open LSMOD , '-|', 'lsmod' or fatal_error "Can't run lsmod";
|
|
|
|
while ( <LSMOD> ) {
|
|
my $module = ( split( /\s+/, $_, 2 ) )[0];
|
|
$loadedmodules{$module}++ unless $module eq 'Module'
|
|
}
|
|
|
|
close LSMOD;
|
|
|
|
$config{MODULE_SUFFIX} = 'o gz ko o.gz ko.gz' unless $config{MODULE_SUFFIX};
|
|
|
|
my @suffixes = split /\s+/ , $config{MODULE_SUFFIX};
|
|
|
|
while ( read_a_line ) {
|
|
fatal_error "Invalid modules file entry" unless ( $currentline =~ /^loadmodule\s+([a-zA-Z]\w*)\s*(.*)$/ );
|
|
my ( $module, $arguments ) = ( $1, $2 );
|
|
unless ( $loadedmodules{ $module } ) {
|
|
for my $directory ( @moduledirectories ) {
|
|
for my $suffix ( @suffixes ) {
|
|
my $modulefile = "$directory/$module.$suffix";
|
|
if ( -f $modulefile ) {
|
|
if ( $moduleloader eq 'insmod' ) {
|
|
system ("insmod $modulefile $arguments" );
|
|
} else {
|
|
system( "modprobe $module $arguments" );
|
|
}
|
|
|
|
$loadedmodules{ $module } = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Q[uie]t version of system(). Returns true for success
|
|
#
|
|
sub qt( $ ) {
|
|
system( "@_ > /dev/null 2>&1" ) == 0;
|
|
}
|
|
|
|
sub qt1( $ ) {
|
|
1 while system( "@_ > /dev/null 2>&1" ) == 4;
|
|
$? == 0;
|
|
}
|
|
|
|
#
|
|
# Get the current kernel version
|
|
#
|
|
sub determine_kernelversion() {
|
|
my $kernelversion=`uname -r`;
|
|
|
|
if ( $kernelversion =~ /^(\d+)\.(\d+).(\d+)/ ) {
|
|
$capabilities{KERNELVERSION} = sprintf "%d%02d%02d", $1 , $2 , $3;
|
|
} else {
|
|
fatal_error "Unrecognized Kernel Version Format ($kernelversion)";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Capability Reporting and detection.
|
|
#
|
|
sub have_capability( $ );
|
|
|
|
sub Nat_Enabled() {
|
|
$family == F_IPV4 ? qt1( "$iptables -t nat -L -n" ) : '';
|
|
}
|
|
|
|
sub Persistent_Snat() {
|
|
have_capability 'NAT_ENABLED' || return '';
|
|
|
|
my $result = '';
|
|
|
|
if ( qt1( "$iptables -t nat -N $sillyname" ) ) {
|
|
$result = qt1( "$iptables -t nat -A $sillyname -j SNAT --to-source 1.2.3.4 --persistent" );
|
|
qt1( "$iptables -t nat -F $sillyname" );
|
|
qt1( "$iptables -t nat -X $sillyname" );
|
|
|
|
}
|
|
|
|
$result;
|
|
}
|
|
|
|
sub Mangle_Enabled() {
|
|
if ( qt1( "$iptables -t mangle -L -n" ) ) {
|
|
system( "$iptables -t mangle -N $sillyname" ) == 0 || fatal_error "Cannot Create Mangle chain $sillyname";
|
|
}
|
|
}
|
|
|
|
sub Conntrack_Match() {
|
|
if ( $family == F_IPV4 ) {
|
|
qt1( "$iptables -A $sillyname -m conntrack --ctorigdst 192.168.1.1 -j ACCEPT" );
|
|
} else {
|
|
qt1( "$iptables -A $sillyname -m conntrack --ctorigdst ::1 -j ACCEPT" );
|
|
}
|
|
}
|
|
|
|
sub New_Conntrack_Match() {
|
|
have_capability 'CONNTRACK_MATCH' && qt1( "$iptables -A $sillyname -m conntrack -p tcp --ctorigdstport 22 -j ACCEPT" );
|
|
}
|
|
|
|
sub Old_Conntrack_Match() {
|
|
! qt1( "$iptables -A $sillyname -m conntrack ! --ctorigdst 1.2.3.4" );
|
|
}
|
|
|
|
sub Multiport() {
|
|
qt1( "$iptables -A $sillyname -p tcp -m multiport --dports 21,22 -j ACCEPT" );
|
|
}
|
|
|
|
sub Kludgefree1() {
|
|
have_capability 'MULTIPORT' && qt1( "$iptables -A $sillyname -p tcp -m multiport --sports 60 -m multiport --dports 99 -j ACCEPT" );
|
|
}
|
|
|
|
sub Kludgefree2() {
|
|
have_capability 'PHYSDEV_MATCH' && qt1( "$iptables -A $sillyname -m physdev --physdev-in eth0 -m physdev --physdev-out eth0 -j ACCEPT" );
|
|
}
|
|
|
|
sub Kludgefree3() {
|
|
if ( $family == F_IPV4 ) {
|
|
qt1( "$iptables -A $sillyname -m iprange --src-range 192.168.1.5-192.168.1.124 -m iprange --dst-range 192.168.1.5-192.168.1.124 -j ACCEPT" );
|
|
} else {
|
|
qt1( "$iptables -A $sillyname -m iprange --src-range ::1-::2 -m iprange --dst-range 192.168.1.5-192.168.1.124 -j ACCEPT" );
|
|
}
|
|
}
|
|
|
|
sub Kludgefree() {
|
|
Kludgefree1 || Kludgefree2 || Kludgefree3;
|
|
}
|
|
|
|
sub Xmultiport() {
|
|
qt1( "$iptables -A $sillyname -p tcp -m multiport --dports 21:22 -j ACCEPT" );
|
|
}
|
|
|
|
sub Policy_Match() {
|
|
qt1( "$iptables -A $sillyname -m policy --pol ipsec --mode tunnel --dir in -j ACCEPT" );
|
|
}
|
|
|
|
sub Physdev_Match() {
|
|
qt1( "$iptables -A $sillyname -m physdev --physdev-in eth0 -j ACCEPT" );
|
|
}
|
|
|
|
sub Physdev_Bridge() {
|
|
qt1( "$iptables -A $sillyname -m physdev --physdev-is-bridged --physdev-in eth0 --physdev-out eth1 -j ACCEPT" );
|
|
}
|
|
|
|
sub IPRange_Match() {
|
|
if ( $family == F_IPV4 ) {
|
|
qt1( "$iptables -A $sillyname -m iprange --src-range 192.168.1.5-192.168.1.124 -j ACCEPT" );
|
|
} else {
|
|
qt1( "$iptables -A $sillyname -m iprange --src-range ::1-::2 -j ACCEPT" );
|
|
}
|
|
}
|
|
|
|
sub Recent_Match() {
|
|
qt1( "$iptables -A $sillyname -m recent --update -j ACCEPT" );
|
|
}
|
|
|
|
sub Owner_Match() {
|
|
qt1( "$iptables -A $sillyname -m owner --uid-owner 0 -j ACCEPT" );
|
|
}
|
|
|
|
sub Connmark_Match() {
|
|
qt1( "$iptables -A $sillyname -m connmark --mark 2 -j ACCEPT" );
|
|
}
|
|
|
|
sub Xconnmark_Match() {
|
|
have_capability 'CONNMARK_MATCH' && qt1( "$iptables -A $sillyname -m connmark --mark 2/0xFF -j ACCEPT" );
|
|
}
|
|
|
|
sub Ipp2p_Match() {
|
|
qt1( "$iptables -A $sillyname -p tcp -m ipp2p --edk -j ACCEPT" );
|
|
}
|
|
|
|
sub Old_Ipp2p_Match() {
|
|
qt1( "$iptables -A $sillyname -p tcp -m ipp2p --ipp2p -j ACCEPT" ) if $capabilities{IPP2P_MATCH};
|
|
}
|
|
|
|
sub Length_Match() {
|
|
qt1( "$iptables -A $sillyname -m length --length 10:20 -j ACCEPT" );
|
|
}
|
|
|
|
sub Enhanced_Reject() {
|
|
if ( $family == F_IPV6 ) {
|
|
qt1( "$iptables -A $sillyname -j REJECT --reject-with icmp6-adm-prohibited" );
|
|
} else {
|
|
qt1( "$iptables -A $sillyname -j REJECT --reject-with icmp-host-prohibited" );
|
|
}
|
|
}
|
|
|
|
sub Comments() {
|
|
qt1( qq($iptables -A $sillyname -j ACCEPT -m comment --comment "This is a comment" ) );
|
|
}
|
|
|
|
sub Hashlimit_Match() {
|
|
if ( qt1( "$iptables -A $sillyname -m hashlimit --hashlimit-upto 3/min --hashlimit-burst 3 --hashlimit-name $sillyname --hashlimit-mode srcip -j ACCEPT" ) ) {
|
|
! ( $capabilities{OLD_HL_MATCH} = 0 );
|
|
} else {
|
|
have_capability 'OLD_HL_MATCH';
|
|
}
|
|
}
|
|
|
|
sub Old_Hashlimit_Match() {
|
|
qt1( "$iptables -A $sillyname -m hashlimit --hashlimit 3/min --hashlimit-burst 3 --hashlimit-name $sillyname --hashlimit-mode srcip -j ACCEPT" );
|
|
}
|
|
|
|
sub Mark() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -A $sillyname -j MARK --set-mark 1" );
|
|
}
|
|
|
|
sub Xmark() {
|
|
have_capability 'MARK' && qt1( "$iptables -t mangle -A $sillyname -j MARK --and-mark 0xFF" );
|
|
}
|
|
|
|
sub Exmark() {
|
|
have_capability 'MARK' && qt1( "$iptables -t mangle -A $sillyname -j MARK --set-mark 1/0xFF" );
|
|
}
|
|
|
|
sub Connmark() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -A $sillyname -j CONNMARK --save-mark" );
|
|
}
|
|
|
|
sub Xconnmark() {
|
|
have_capability 'XCONNMARK_MATCH' && have_capability 'XMARK' && qt1( "$iptables -t mangle -A $sillyname -j CONNMARK --save-mark --mask 0xFF" );
|
|
}
|
|
|
|
sub Classify_Target() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -A $sillyname -j CLASSIFY --set-class 1:1" );
|
|
}
|
|
|
|
sub IPMark_Target() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -A $sillyname -j IPMARK --addr src" );
|
|
}
|
|
|
|
sub Tproxy_Target() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -A $sillyname -p tcp -j TPROXY --on-port 0 --tproxy-mark 1" );
|
|
}
|
|
|
|
sub Mangle_Forward() {
|
|
have_capability 'MANGLE_ENABLED' && qt1( "$iptables -t mangle -L FORWARD -n" );
|
|
}
|
|
|
|
sub Raw_Table() {
|
|
qt1( "$iptables -t raw -L -n" );
|
|
}
|
|
|
|
sub Old_IPSet_Match() {
|
|
my $ipset = $config{IPSET} || 'ipset';
|
|
my $result = 0;
|
|
|
|
$ipset = which $ipset unless $ipset =~ '/';
|
|
|
|
if ( $ipset && -x $ipset ) {
|
|
qt( "$ipset -X $sillyname" );
|
|
|
|
if ( qt( "$ipset -N $sillyname iphash" ) ) {
|
|
if ( qt1( "$iptables -A $sillyname -m set --set $sillyname src -j ACCEPT" ) ) {
|
|
qt1( "$iptables -D $sillyname -m set --set $sillyname src -j ACCEPT" );
|
|
$result = $capabilities{IPSET_MATCH} = 1;
|
|
}
|
|
|
|
qt( "$ipset -X $sillyname" );
|
|
}
|
|
}
|
|
|
|
$result;
|
|
}
|
|
|
|
sub IPSet_Match() {
|
|
my $ipset = $config{IPSET} || 'ipset';
|
|
my $result = 0;
|
|
|
|
$ipset = which $ipset unless $ipset =~ '/';
|
|
|
|
if ( $ipset && -x $ipset ) {
|
|
qt( "$ipset -X $sillyname" );
|
|
|
|
if ( qt( "$ipset -N $sillyname iphash" ) ) {
|
|
if ( qt1( "$iptables -A $sillyname -m set --match-set $sillyname src -j ACCEPT" ) ) {
|
|
qt1( "$iptables -D $sillyname -m set --match-set $sillyname src -j ACCEPT" );
|
|
$result = ! ( $capabilities{OLD_IPSET_MATCH} = 0 );
|
|
} else {
|
|
$result = have_capability 'OLD_IPSET_MATCH';
|
|
}
|
|
|
|
qt( "$ipset -X $sillyname" );
|
|
}
|
|
}
|
|
|
|
$result;
|
|
}
|
|
|
|
sub Usepkttype() {
|
|
qt1( "$iptables -A $sillyname -m pkttype --pkt-type broadcast -j ACCEPT" );
|
|
}
|
|
|
|
sub Addrtype() {
|
|
qt1( "$iptables -A $sillyname -m addrtype --src-type BROADCAST -j ACCEPT" );
|
|
}
|
|
|
|
sub Tcpmss_Match() {
|
|
qt1( "$iptables -A $sillyname -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1000:1500 -j ACCEPT" );
|
|
}
|
|
|
|
sub Nfqueue_Target() {
|
|
qt1( "$iptables -A $sillyname -j NFQUEUE --queue-num 4" );
|
|
}
|
|
|
|
sub Realm_Match() {
|
|
qt1( "$iptables -A $sillyname -m realm --realm 1" );
|
|
}
|
|
|
|
sub Helper_Match() {
|
|
qt1( "$iptables -A $sillyname -m helper --helper \"ftp\"" );
|
|
}
|
|
|
|
sub Connlimit_Match() {
|
|
qt1( "$iptables -A $sillyname -m connlimit --connlimit-above 8" );
|
|
}
|
|
|
|
sub Time_Match() {
|
|
qt1( "$iptables -A $sillyname -m time --timestart 11:00" );
|
|
}
|
|
|
|
sub Goto_Target() {
|
|
qt1( "$iptables -A $sillyname -g $sillyname1" );
|
|
}
|
|
|
|
sub Log_Target() {
|
|
qt1( "$iptables -A $sillyname -j LOG" );
|
|
}
|
|
|
|
sub Logmark_Target() {
|
|
qt1( "$iptables -A $sillyname -j LOGMARK" );
|
|
}
|
|
|
|
sub Flow_Filter() {
|
|
$tc && system( "$tc filter add flow add help 2>&1 | grep -q ^Usage" ) == 0;
|
|
}
|
|
|
|
sub Fwmark_Rt_Mask() {
|
|
$ip && system( "$ip rule add help 2>&1 | grep -q /MASK" ) == 0;
|
|
}
|
|
|
|
sub Mark_Anywhere() {
|
|
qt1( "$iptables -A $sillyname -j MARK --set-mark 5" );
|
|
}
|
|
|
|
sub Header_Match() {
|
|
qt1( "$iptables -A $sillyname -m ipv6header --header 255 -j ACCEPT" );
|
|
}
|
|
|
|
sub Account_Target() {
|
|
if ( $family == F_IPV4 ) {
|
|
qt1( "$iptables -A $sillyname -j ACCOUNT --addr 192.168.1.0/29 --tname $sillyname" );
|
|
} else {
|
|
qt1( "$iptables -A $sillyname -j ACCOUNT --addr 1::/122 --tname $sillyname" );
|
|
}
|
|
}
|
|
|
|
sub Audit_Target() {
|
|
$config{FAKE_AUDIT} || qt1( "$iptables -A $sillyname -j AUDIT --type drop" );
|
|
}
|
|
|
|
our %detect_capability =
|
|
( ACCOUNT_TARGET =>\&Account_Target,
|
|
AUDIT_TARGET => \&Audit_Target,
|
|
ADDRTYPE => \&Addrtype,
|
|
CLASSIFY_TARGET => \&Classify_Target,
|
|
COMMENTS => \&Comments,
|
|
CONNLIMIT_MATCH => \&Connlimit_Match,
|
|
CONNMARK => \&Connmark,
|
|
CONNMARK_MATCH => \&Connmark_Match,
|
|
CONNTRACK_MATCH => \&Conntrack_Match,
|
|
ENHANCED_REJECT => \&Enhanced_Reject,
|
|
EXMARK => \&Exmark,
|
|
FLOW_FILTER => \&Flow_Filter,
|
|
FWMARK_RT_MASK => \&Fwmark_Rt_Mask,
|
|
GOTO_TARGET => \&Goto_Target,
|
|
HASHLIMIT_MATCH => \&Hashlimit_Match,
|
|
HEADER_MATCH => \&Header_Match,
|
|
HELPER_MATCH => \&Helper_Match,
|
|
IPMARK_TARGET => \&IPMark_Target,
|
|
IPP2P_MATCH => \&Ipp2p_Match,
|
|
IPRANGE_MATCH => \&IPRange_Match,
|
|
IPSET_MATCH => \&IPSet_Match,
|
|
OLD_IPSET_MATCH => \&Old_IPSet_Match,
|
|
KLUDGEFREE => \&Kludgefree,
|
|
LENGTH_MATCH => \&Length_Match,
|
|
LOGMARK_TARGET => \&Logmark_Target,
|
|
LOG_TARGET => \&Log_Target,
|
|
MANGLE_ENABLED => \&Mangle_Enabled,
|
|
MANGLE_FORWARD => \&Mangle_Forward,
|
|
MARK => \&Mark,
|
|
MARK_ANYWHERE => \&Mark_Anywhere,
|
|
MULTIPORT => \&Multiport,
|
|
NAT_ENABLED => \&Nat_Enabled,
|
|
NEW_CONNTRACK_MATCH => \&New_Conntrack_Match,
|
|
NFQUEUE_TARGET => \&Nfqueue_Target,
|
|
OLD_CONNTRACK_MATCH => \&Old_Conntrack_Match,
|
|
OLD_HL_MATCH => \&Old_Hashlimit_Match,
|
|
OLD_IPP2P_MATCH => \&Old_Ipp2p_Match,
|
|
OWNER_MATCH => \&Owner_Match,
|
|
PERSISTENT_SNAT => \&Persistent_Snat,
|
|
PHYSDEV_BRIDGE => \&Physdev_Bridge,
|
|
PHYSDEV_MATCH => \&Physdev_Match,
|
|
POLICY_MATCH => \&Policy_Match,
|
|
RAW_TABLE => \&Raw_Table,
|
|
REALM_MATCH => \&Realm_Match,
|
|
RECENT_MATCH => \&Recent_Match,
|
|
TCPMSS_MATCH => \&Tcpmss_Match,
|
|
TIME_MATCH => \&Time_Match,
|
|
TPROXY_TARGET => \&Tproxy_Target,
|
|
USEPKTTYPE => \&Usepkttype,
|
|
XCONNMARK_MATCH => \&Xconnmark_Match,
|
|
XCONNMARK => \&Xconnmark,
|
|
XMARK => \&Xmark,
|
|
XMULTIPORT => \&Xmultiport,
|
|
);
|
|
|
|
sub detect_capability( $ ) {
|
|
my $capability = shift;
|
|
my $function = $detect_capability{ $capability };
|
|
|
|
assert( ( reftype( $function ) || '' ) eq 'CODE' );
|
|
$function->();
|
|
}
|
|
|
|
#
|
|
# Report the passed capability
|
|
#
|
|
sub have_capability( $ ) {
|
|
my $capability = shift;
|
|
our %detect_capability;
|
|
|
|
$capabilities{ $capability } = detect_capability( $capability ) unless defined $capabilities{ $capability };
|
|
|
|
$capabilities{ $capability };
|
|
}
|
|
|
|
#
|
|
# Determine which optional facilities are supported by iptables/netfilter
|
|
#
|
|
sub determine_capabilities() {
|
|
|
|
my $pid = $$;
|
|
|
|
$capabilities{CAPVERSION} = $globals{CAPVERSION};
|
|
|
|
determine_kernelversion;
|
|
|
|
$sillyname = "fooX$pid";
|
|
$sillyname1 = "foo1X$pid";
|
|
|
|
qt1( "$iptables -N $sillyname" );
|
|
qt1( "$iptables -N $sillyname1" );
|
|
|
|
fatal_error 'Your kernel/iptables do not include state match support. No version of Shorewall will run on this system'
|
|
unless
|
|
qt1( "$iptables -A $sillyname -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT") ||
|
|
qt1( "$iptables -A $sillyname -m state --state ESTABLISHED,RELATED -j ACCEPT");;
|
|
|
|
|
|
unless ( $config{ LOAD_HELPERS_ONLY } ) {
|
|
#
|
|
# Using 'detect_capability()' is a bit less efficient than calling the individual detection
|
|
# functions but it ensures that %detect_capability is initialized properly.
|
|
#
|
|
$capabilities{NAT_ENABLED} = detect_capability( 'NAT_ENABLED' );
|
|
$capabilities{PERSISTENT_SNAT} = detect_capability( 'PERSISTENT_SNAT' );
|
|
$capabilities{MANGLE_ENABLED} = detect_capability( 'MANGLE_ENABLED' );
|
|
|
|
if ( $capabilities{CONNTRACK_MATCH} = detect_capability( 'CONNTRACK_MATCH' ) ) {
|
|
$capabilities{NEW_CONNTRACK_MATCH} = detect_capability( 'NEW_CONNTRACK_MATCH' );
|
|
$capabilities{OLD_CONNTRACK_MATCH} = detect_capability( 'OLD_CONNTRACK_MATCH' );
|
|
} else {
|
|
$capabilities{NEW_CONNTRACK_MATCH} = '';
|
|
$capabilities{OLD_CONNTRACK_MATCH} = '';
|
|
}
|
|
|
|
if ( $capabilities{ MULTIPORT } = detect_capability( 'MULTIPORT' ) ) {
|
|
$capabilities{KLUDGEFREE} = Kludgefree1;
|
|
}
|
|
|
|
$capabilities{XMULTIPORT} = detect_capability( 'XMULTIPORT' );
|
|
$capabilities{POLICY_MATCH} = detect_capability( 'POLICY_MATCH' );
|
|
|
|
if ( $capabilities{PHYSDEV_MATCH} = detect_capability( 'PHYSDEV_MATCH' ) ) {
|
|
$capabilities{PHYSDEV_BRIDGE} = detect_capability( 'PHYSDEV_BRIDGE' );
|
|
$capabilities{KLUDGEFREE} ||= Kludgefree2;
|
|
} else {
|
|
$capabilities{PHYSDEV_BRIDGE} = '';
|
|
}
|
|
|
|
if ( $capabilities{IPRANGE_MATCH} = detect_capability( 'IPRANGE_MATCH' ) ) {
|
|
$capabilities{KLUDGEFREE} ||= Kludgefree3;
|
|
}
|
|
|
|
$capabilities{RECENT_MATCH} = detect_capability( 'RECENT_MATCH' );
|
|
$capabilities{OWNER_MATCH} = detect_capability( 'OWNER_MATCH' );
|
|
$capabilities{CONNMARK_MATCH} = detect_capability( 'CONNMARK_MATCH' );
|
|
$capabilities{XCONNMARK_MATCH} = detect_capability( 'XCONNMARK_MATCH' );
|
|
$capabilities{IPP2P_MATCH} = detect_capability( 'IPP2P_MATCH' );
|
|
$capabilities{OLD_IPP2P_MATCH} = detect_capability( 'OLD_IPP2P_MATCH' );
|
|
$capabilities{LENGTH_MATCH} = detect_capability( 'LENGTH_MATCH' );
|
|
$capabilities{ENHANCED_REJECT} = detect_capability( 'ENHANCED_REJECT' );
|
|
$capabilities{COMMENTS} = detect_capability( 'COMMENTS' );
|
|
$capabilities{OLD_HL_MATCH} = detect_capability( 'OLD_HL_MATCH' );
|
|
$capabilities{HASHLIMIT_MATCH} = detect_capability( 'HASHLIMIT_MATCH' );
|
|
$capabilities{MARK} = detect_capability( 'MARK' );
|
|
$capabilities{XMARK} = detect_capability( 'XMARK' );
|
|
$capabilities{EXMARK} = detect_capability( 'EXMARK' );
|
|
$capabilities{CONNMARK} = detect_capability( 'CONNMARK' );
|
|
$capabilities{XCONNMARK} = detect_capability( 'XCONNMARK' );
|
|
$capabilities{CLASSIFY_TARGET} = detect_capability( 'CLASSIFY_TARGET' );
|
|
$capabilities{IPMARK_TARGET} = detect_capability( 'IPMARK_TARGET' );
|
|
$capabilities{TPROXY_TARGET} = detect_capability( 'TPROXY_TARGET' );
|
|
|
|
if ( $capabilities{MANGLE_ENABLED} ) {
|
|
qt1( "$iptables -t mangle -F $sillyname" );
|
|
qt1( "$iptables -t mangle -X $sillyname" );
|
|
}
|
|
|
|
$capabilities{MANGLE_FORWARD} = detect_capability( 'MANGLE_FORWARD' );
|
|
$capabilities{RAW_TABLE} = detect_capability( 'RAW_TABLE' );
|
|
$capabilities{IPSET_MATCH} = detect_capability( 'IPSET_MATCH' );
|
|
$capabilities{USEPKTTYPE} = detect_capability( 'USEPKTTYPE' );
|
|
$capabilities{ADDRTYPE} = detect_capability( 'ADDRTYPE' );
|
|
$capabilities{TCPMSS_MATCH} = detect_capability( 'TCPMSS_MATCH' );
|
|
$capabilities{NFQUEUE_TARGET} = detect_capability( 'NFQUEUE_TARGET' );
|
|
$capabilities{REALM_MATCH} = detect_capability( 'REALM_MATCH' );
|
|
$capabilities{HELPER_MATCH} = detect_capability( 'HELPER_MATCH' );
|
|
$capabilities{CONNLIMIT_MATCH} = detect_capability( 'CONNLIMIT_MATCH' );
|
|
$capabilities{TIME_MATCH} = detect_capability( 'TIME_MATCH' );
|
|
$capabilities{GOTO_TARGET} = detect_capability( 'GOTO_TARGET' );
|
|
$capabilities{LOG_TARGET} = detect_capability( 'LOG_TARGET' );
|
|
$capabilities{LOGMARK_TARGET} = detect_capability( 'LOGMARK_TARGET' );
|
|
$capabilities{FLOW_FILTER} = detect_capability( 'FLOW_FILTER' );
|
|
$capabilities{FWMARK_RT_MASK} = detect_capability( 'FWMARK_RT_MASK' );
|
|
$capabilities{MARK_ANYWHERE} = detect_capability( 'MARK_ANYWHERE' );
|
|
$capabilities{ACCOUNT_TARGET} = detect_capability( 'ACCOUNT_TARGET' );
|
|
$capabilities{AUDIT_TARGET} = detect_capability( 'AUDIT_TARGET' );
|
|
|
|
|
|
qt1( "$iptables -F $sillyname" );
|
|
qt1( "$iptables -X $sillyname" );
|
|
qt1( "$iptables -F $sillyname1" );
|
|
qt1( "$iptables -X $sillyname1" );
|
|
|
|
$sillyname = $sillyname1 = undef;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Require the passed capability
|
|
#
|
|
sub require_capability( $$$ ) {
|
|
my ( $capability, $description, $singular ) = @_;
|
|
|
|
fatal_error "$description require${singular} $capdesc{$capability} in your kernel and iptables" unless have_capability $capability;
|
|
}
|
|
|
|
#
|
|
# Set default config path
|
|
#
|
|
sub ensure_config_path() {
|
|
|
|
my $f = "$globals{SHAREDIR}/configpath";
|
|
|
|
$globals{CONFDIR} = "/usr/share/$product/configfiles/" if $> != 0;
|
|
|
|
unless ( $config{CONFIG_PATH} ) {
|
|
fatal_error "$f does not exist" unless -f $f;
|
|
|
|
open_file $f;
|
|
|
|
add_param( CONFDIR => $globals{CONFDIR} );
|
|
|
|
while ( read_a_line ) {
|
|
if ( $currentline =~ /^\s*([a-zA-Z]\w*)=(.*?)\s*$/ ) {
|
|
my ($var, $val) = ($1, $2);
|
|
$config{$var} = ( $val =~ /\"([^\"]*)\"$/ ? $1 : $val ) if exists $config{$var};
|
|
} else {
|
|
fatal_error "Unrecognized entry";
|
|
}
|
|
}
|
|
|
|
fatal_error "CONFIG_PATH not found in $f" unless $config{CONFIG_PATH};
|
|
}
|
|
|
|
@config_path = split /:/, $config{CONFIG_PATH};
|
|
|
|
for ( @config_path ) {
|
|
$_ .= '/' unless m|/$|;
|
|
}
|
|
|
|
if ( $shorewall_dir ) {
|
|
$shorewall_dir = getcwd if $shorewall_dir =~ m|^(\./*)+$|;
|
|
$shorewall_dir .= '/' unless $shorewall_dir =~ m|/$|;
|
|
unshift @config_path, $shorewall_dir if $shorewall_dir ne $config_path[0];
|
|
$config{CONFIG_PATH} = join ':', @config_path;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Set $shorewall_dir
|
|
#
|
|
sub set_shorewall_dir( $ ) {
|
|
$shorewall_dir = shift;
|
|
ensure_config_path;
|
|
}
|
|
|
|
#
|
|
# Small functions called by get_configuration. We separate them so profiling is more useful
|
|
#
|
|
sub process_shorewall_conf() {
|
|
my $file = find_file "$product.conf";
|
|
|
|
if ( -f $file ) {
|
|
$globals{CONFIGDIR} = $file;
|
|
$globals{CONFIGDIR} =~ s/$product.conf//;
|
|
|
|
if ( -r _ ) {
|
|
open_file $file;
|
|
|
|
first_entry "Processing $file...";
|
|
|
|
while ( read_a_line(0) ) {
|
|
if ( $currentline =~ /^\s*([a-zA-Z]\w*)=(.*?)\s*$/ ) {
|
|
my ($var, $val) = ($1, $2);
|
|
unless ( exists $config{$var} ) {
|
|
warning_message "Unknown configuration option ($var) ignored";
|
|
next;
|
|
}
|
|
|
|
$config{$var} = ( $val =~ /\"([^\"]*)\"$/ ? $1 : $val );
|
|
} else {
|
|
fatal_error "Unrecognized entry";
|
|
}
|
|
}
|
|
} else {
|
|
fatal_error "Cannot read $file (Hint: Are you root?)";
|
|
}
|
|
} else {
|
|
fatal_error "$file does not exist!";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Process the records in the capabilities file
|
|
#
|
|
sub read_capabilities() {
|
|
while ( read_a_line1 ) {
|
|
if ( $currentline =~ /^([a-zA-Z]\w*)=(.*)$/ ) {
|
|
my ($var, $val) = ($1, $2);
|
|
unless ( exists $capabilities{$var} ) {
|
|
warning_message "Unknown capability ($var) ignored";
|
|
next;
|
|
}
|
|
|
|
$capabilities{$var} = $val =~ /^\"([^\"]*)\"$/ ? $1 : $val;
|
|
} else {
|
|
fatal_error "Unrecognized capabilities entry";
|
|
}
|
|
}
|
|
|
|
if ( $capabilities{CAPVERSION} ) {
|
|
warning_message "Your capabilities file is out of date -- it does not contain all of the capabilities defined by $Product version $globals{VERSION}" unless $capabilities{CAPVERSION} >= $globals{CAPVERSION};
|
|
} else {
|
|
warning_message "Your capabilities file may not contain all of the capabilities defined by $Product version $globals{VERSION}";
|
|
}
|
|
|
|
unless ( $capabilities{KERNELVERSION} ) {
|
|
warning_message "Your capabilities file does not contain a Kernel Version -- using 2.6.30";
|
|
$capabilities{KERNELVERSION} = 20630;
|
|
}
|
|
|
|
for ( keys %capabilities ) {
|
|
$capabilities{$_} = '' unless defined $capabilities{$_};
|
|
}
|
|
|
|
}
|
|
|
|
#
|
|
# Get the system's capabilities, either by probing or by reading a capabilities file
|
|
#
|
|
sub get_capabilities( $ ) {
|
|
my $export = $_[0];
|
|
|
|
if ( ! $export && $> == 0 ) { # $> == $EUID
|
|
$iptables = $config{$toolNAME};
|
|
|
|
if ( $iptables ) {
|
|
fatal_error "$toolNAME=$iptables does not exist or is not executable" unless -x $iptables;
|
|
} else {
|
|
fatal_error "Can't find $toolname executable" unless $iptables = which $toolname;
|
|
}
|
|
|
|
my $iptables_restore=$iptables . '-restore';
|
|
|
|
fatal_error "$iptables_restore does not exist or is not executable" unless -x $iptables_restore;
|
|
|
|
$tc = $config{TC} || which 'tc';
|
|
|
|
if ( $tc ) {
|
|
fatal_error "TC=$tc does not exist or is not executable" unless -x $tc;
|
|
}
|
|
|
|
$ip = $config{IP} || which 'ip';
|
|
|
|
if ( $ip ) {
|
|
fatal_error "IP=$ip does not exist or is not executable" unless -x $ip;
|
|
}
|
|
|
|
load_kernel_modules;
|
|
|
|
if ( open_file 'capabilities' ) {
|
|
read_capabilities;
|
|
} else {
|
|
determine_capabilities;
|
|
}
|
|
} else {
|
|
unless ( open_file 'capabilities' ) {
|
|
fatal_error "The -e compiler option requires a capabilities file" if $export;
|
|
fatal_error "Compiling under non-root uid requires a capabilities file";
|
|
}
|
|
|
|
read_capabilities;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Deal with options that we no longer support
|
|
#
|
|
sub unsupported_yes_no( $ ) {
|
|
my $option = shift;
|
|
|
|
default_yes_no $option, '';
|
|
|
|
fatal_error "$option=Yes is not supported by Shorewall $globals{VERSION}" if $config{$option};
|
|
}
|
|
|
|
sub unsupported_yes_no_warning( $ ) {
|
|
my $option = shift;
|
|
|
|
default_yes_no $option, '';
|
|
|
|
warning_message "$option=Yes is not supported by Shorewall $globals{VERSION}" if $config{$option};
|
|
}
|
|
|
|
#
|
|
# Process the params file
|
|
#
|
|
sub get_params() {
|
|
my $fn = find_file 'params';
|
|
|
|
if ( -f $fn ) {
|
|
progress_message2 "Processing $fn ...";
|
|
|
|
my $command = "$FindBin::Bin/getparams $fn " . join( ':', @config_path ) . " $family";
|
|
#
|
|
# getparams silently sources the params file under 'set -a', then executes 'export -p'
|
|
#
|
|
my @params = `$command`;
|
|
|
|
fatal_error "Processing of $fn failed" if $?;
|
|
|
|
if ( $debug ) {
|
|
print "Params:\n";
|
|
print $_ for @params;
|
|
}
|
|
|
|
my ( $variable , $bug );
|
|
|
|
if ( $params[0] =~ /^declare/ ) {
|
|
#
|
|
# getparams was interpreted by bash
|
|
#
|
|
# - Variable names are preceded by 'declare -x '
|
|
# - Param values are delimited by double quotes
|
|
# - Embedded double quotes are escaped with '\\'
|
|
# - Valueless variables are supported (e.g., 'declare -x foo')
|
|
#
|
|
for ( @params ) {
|
|
if ( /^declare -x (.*?)="(.*[^\\])"$/ ) {
|
|
$params{$1} = $2 unless $1 eq '_';
|
|
} elsif ( /^declare -x (.*?)="(.*)$/ ) {
|
|
$params{$variable=$1} = $2 eq '"' ? '' : "${2}\n";
|
|
} elsif ( /^declare -x (.*)\s+$/ || /^declare -x (.*)=""$/ ) {
|
|
$params{$1} = '';
|
|
} else {
|
|
if ($variable) {
|
|
s/"$//;
|
|
$params{$variable} .= $_;
|
|
} else {
|
|
chomp;
|
|
warning_message "Param line ($_) ignored" unless $bug++;
|
|
}
|
|
}
|
|
}
|
|
} elsif ( $params[0] =~ /^export .*?="/ || $params[0] =~ /^export [^\s=]+\s*$/ ) {
|
|
#
|
|
# getparams interpreted by older (e.g., RHEL 5) Bash
|
|
#
|
|
# - Variable names preceded by 'export '
|
|
# - Variable values are delimited by double quotes
|
|
# - Embedded single quotes are escaped with '\'
|
|
# - Valueless variables ( e.g., 'export foo') are supported
|
|
#
|
|
for ( @params ) {
|
|
if ( /^export (.*?)="(.*[^\\])"$/ ) {
|
|
$params{$1} = $2 unless $1 eq '_';
|
|
} elsif ( /^export (.*?)="(.*)$/ ) {
|
|
$params{$variable=$1} = $2 eq '"' ? '' : "${2}\n";
|
|
} elsif ( /^export ([^\s=]+)\s*$/ || /^export (.*)=""$/ ) {
|
|
$params{$1} = '';
|
|
} else {
|
|
if ($variable) {
|
|
s/"$//;
|
|
$params{$variable} .= $_;
|
|
} else {
|
|
chomp;
|
|
warning_message "Param line ($_) ignored" unless $bug++;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
#
|
|
# getparams was interpreted by dash/ash/busybox
|
|
#
|
|
# - Variable name preceded by 'export '
|
|
# - Param values are delimited by single quotes.
|
|
# - Embedded single quotes are transformed to the five characters '"'"'
|
|
#
|
|
for ( @params ) {
|
|
if ( /^export (.*?)='(.*'"'"')$/ ) {
|
|
$params{$variable=$1}="${2}\n";
|
|
} elsif ( /^export (.*?)='(.*)'$/ ) {
|
|
$params{$1} = $2 unless $1 eq '_';
|
|
} elsif ( /^export (.*?)='(.*)$/ ) {
|
|
$params{$variable=$1}="${2}\n";
|
|
} else {
|
|
if ($variable) {
|
|
s/'$//;
|
|
$params{$variable} .= $_;
|
|
} else {
|
|
chomp;
|
|
warning_message "Param line ($_) ignored" unless $bug++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( $debug ) {
|
|
print "PARAMS:\n";
|
|
my $value;
|
|
while ( ($variable, $value ) = each %params ) {
|
|
print " $variable='$value'\n" unless $compiler_params{$variable};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Add an entry to %params and to %compiler_params
|
|
#
|
|
sub add_param( $$ ) {
|
|
my ( $param, $value ) = @_;
|
|
|
|
$params{$param} = $value;
|
|
$compiler_params{$param} = 1;
|
|
}
|
|
|
|
#
|
|
# emit param=value for each param set in the params file
|
|
#
|
|
sub export_params() {
|
|
my $count = 0;
|
|
|
|
while ( my ( $param, $value ) = each %params ) {
|
|
#
|
|
# Don't export params added by the compiler
|
|
#
|
|
next if exists $compiler_params{$param};
|
|
#
|
|
# Don't export pairs from %ENV
|
|
#
|
|
if ( exists $ENV{$param} && defined $ENV{$param} ) {
|
|
next if $value eq $ENV{$param};
|
|
}
|
|
|
|
emit "#\n# From the params file\n#" unless $count++;
|
|
|
|
if ( $value =~ /[\s()[]/ ) {
|
|
emit "$param='$value'";
|
|
} else {
|
|
emit "$param=$value";
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# - Read the shorewall.conf file
|
|
# - Read the capabilities file, if any
|
|
# - establish global hashes %config , %globals and %capabilities
|
|
#
|
|
sub get_configuration( $ ) {
|
|
|
|
my $export = $_[0];
|
|
|
|
$globals{EXPORT} = $export;
|
|
|
|
our ( $once, @originalinc );
|
|
|
|
@originalinc = @INC unless $once++;
|
|
|
|
ensure_config_path;
|
|
|
|
get_params;
|
|
|
|
process_shorewall_conf;
|
|
|
|
ensure_config_path;
|
|
|
|
@INC = @originalinc;
|
|
|
|
unshift @INC, @config_path;
|
|
|
|
default 'PATH' , '/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin';
|
|
#
|
|
# get_capabilities requires that the true settings of these options be established
|
|
#
|
|
default 'MODULE_PREFIX', 'ko ko.gz o o.gz gz';
|
|
default_yes_no 'LOAD_HELPERS_ONLY' , '';
|
|
|
|
get_capabilities( $export );
|
|
|
|
|
|
$globals{STATEMATCH} = '-m conntrack --ctstate' if have_capability 'CONNTRACK_MATCH';
|
|
|
|
if ( my $rate = $config{LOGLIMIT} ) {
|
|
my $limit;
|
|
|
|
if ( $rate =~ /^[sd]:/ ) {
|
|
require_capability 'HASHLIMIT_MATCH', 'Per-ip log rate limiting' , 's';
|
|
|
|
$limit = "-m hashlimit ";
|
|
|
|
my $match = have_capability( 'OLD_HL_MATCH' ) ? 'hashlimit' : 'hashlimit-upto';
|
|
my $units;
|
|
|
|
if ( $rate =~ /^[sd]:((\d+)(\/(sec|min|hour|day))):(\d+)$/ ) {
|
|
fatal_error "Invalid rate ($1)" unless $2;
|
|
fatal_error "Invalid burst value ($5)" unless $5;
|
|
|
|
$limit .= "--$match $1 --hashlimit-burst $5 --hashlimit-name lograte --hashlimit-mode ";
|
|
$units = $4;
|
|
} elsif ( $rate =~ /^[sd]:((\d+)(\/(sec|min|hour|day))?)$/ ) {
|
|
fatal_error "Invalid rate ($1)" unless $2;
|
|
$limit .= "--$match $1 --hashlimit-name lograte --hashlimit-mode ";
|
|
$units = $4;
|
|
} else {
|
|
fatal_error "Invalid rate ($rate)";
|
|
}
|
|
|
|
$limit .= $rate =~ /^s:/ ? 'srcip ' : 'dstip ';
|
|
|
|
if ( $units && $units ne 'sec' ) {
|
|
my $expire = 60000; # 1 minute in milliseconds
|
|
|
|
if ( $units ne 'min' ) {
|
|
$expire *= 60; #At least an hour
|
|
$expire *= 24 if $units eq 'day';
|
|
}
|
|
|
|
$limit .= "--hashlimit-htable-expire $expire ";
|
|
}
|
|
} elsif ( $rate =~ /^((\d+)(\/(sec|min|hour|day))):(\d+)$/ ) {
|
|
fatal_error "Invalid rate ($1)" unless $2;
|
|
fatal_error "Invalid burst value ($5)" unless $5;
|
|
$limit = "-m limit --limit $1 --limit-burst $5 ";
|
|
} elsif ( $rate =~ /^(\d+)(\/(sec|min|hour|day))?$/ ) {
|
|
fatal_error "Invalid rate (${1}${2})" unless $1;
|
|
$limit = "-m limit --limit $rate ";
|
|
} else {
|
|
fatal_error "Invalid rate ($rate)";
|
|
}
|
|
|
|
$globals{LOGLIMIT} = $limit;
|
|
|
|
warning_message "LOGRATE Ignored when LOGLIMIT is specified" if $config{LOGRATE};
|
|
warning_message "LOGBURST Ignored when LOGLIMIT is specified" if $config{LOGBURST};
|
|
|
|
} elsif ( $config{LOGRATE} || $config{LOGBURST} ) {
|
|
if ( defined $config{LOGRATE} ) {
|
|
fatal_error"Invalid LOGRATE ($config{LOGRATE})" unless $config{LOGRATE} =~ /^\d+\/(second|minute)$/;
|
|
}
|
|
|
|
if ( defined $config{LOGBURST} ) {
|
|
fatal_error"Invalid LOGBURST ($config{LOGBURST})" unless $config{LOGBURST} =~ /^\d+$/;
|
|
}
|
|
|
|
$globals{LOGLIMIT} = '-m limit ';
|
|
$globals{LOGLIMIT} .= "--limit $config{LOGRATE} " if defined $config{LOGRATE};
|
|
$globals{LOGLIMIT} .= "--limit-burst $config{LOGBURST} " if defined $config{LOGBURST};
|
|
} else {
|
|
$globals{LOGLIMIT} = '';
|
|
}
|
|
|
|
check_trivalue ( 'IP_FORWARDING', 'on' );
|
|
|
|
my $val;
|
|
|
|
if ( have_capability( 'KERNELVERSION' ) < 20631 ) {
|
|
check_trivalue ( 'ROUTE_FILTER', '' );
|
|
} else {
|
|
$val = $config{ROUTE_FILTER};
|
|
if ( defined $val ) {
|
|
if ( $val =~ /\d+/ ) {
|
|
fatal_error "Invalid value ($val) for ROUTE_FILTER" unless $val < 3;
|
|
} else {
|
|
check_trivalue( 'ROUTE_FILTER', '' );
|
|
}
|
|
} else {
|
|
check_trivalue( 'ROUTE_FILTER', '' );
|
|
}
|
|
}
|
|
|
|
if ( $family == F_IPV6 ) {
|
|
$val = $config{ROUTE_FILTER};
|
|
fatal_error "ROUTE_FILTER=$val is not supported in IPv6" if $val && $val ne 'off';
|
|
}
|
|
|
|
if ( $family == F_IPV4 ) {
|
|
check_trivalue ( 'LOG_MARTIANS', 'on' );
|
|
} else {
|
|
check_trivalue ( 'LOG_MARTIANS', 'off' );
|
|
fatal_error "LOG_MARTIANS=On is not supported in IPv6" if $config{LOG_MARTIANS} eq 'on';
|
|
}
|
|
|
|
default 'STARTUP_LOG' , '';
|
|
|
|
if ( $config{STARTUP_LOG} ne '' ) {
|
|
if ( defined $config{LOG_VERBOSITY} ) {
|
|
if ( $config{LOG_VERBOSITY} eq '' ) {
|
|
$config{LOG_VERBOSITY} = 2;
|
|
} else {
|
|
my $val = numeric_value( $config{LOG_VERBOSITY} );
|
|
fatal_error "Invalid LOG_VERBOSITY ($config{LOG_VERBOSITY} )" unless defined( $val ) && ( $val >= -1 ) && ( $val <= 2 );
|
|
$config{STARTUP_LOG} = '' if $config{LOG_VERBOSITY} < 0;
|
|
$config{LOG_VERBOSITY} = $val;
|
|
}
|
|
} else {
|
|
$config{LOG_VERBOSITY} = 2;
|
|
}
|
|
} else {
|
|
$config{LOG_VERBOSITY} = -1;
|
|
}
|
|
|
|
default_yes_no 'ADD_IP_ALIASES' , 'Yes';
|
|
default_yes_no 'ADD_SNAT_ALIASES' , '';
|
|
default_yes_no 'DETECT_DNAT_IPADDRS' , '';
|
|
default_yes_no 'DETECT_DNAT_IPADDRS' , '';
|
|
default_yes_no 'CLEAR_TC' , $family == F_IPV4 ? 'Yes' : '';
|
|
|
|
if ( defined $config{CLAMPMSS} ) {
|
|
default_yes_no 'CLAMPMSS' , '' unless $config{CLAMPMSS} =~ /^\d+$/;
|
|
} else {
|
|
$config{CLAMPMSS} = '';
|
|
}
|
|
|
|
unless ( $config{ADD_IP_ALIASES} || $config{ADD_SNAT_ALIASES} ) {
|
|
$config{RETAIN_ALIASES} = '';
|
|
} else {
|
|
default_yes_no_ipv4 'RETAIN_ALIASES' , '';
|
|
}
|
|
|
|
default_yes_no 'ADMINISABSENTMINDED' , '';
|
|
default_yes_no 'BLACKLISTNEWONLY' , '';
|
|
default_yes_no 'DISABLE_IPV6' , '';
|
|
|
|
unsupported_yes_no_warning 'DYNAMIC_ZONES';
|
|
unsupported_yes_no 'BRIDGING';
|
|
unsupported_yes_no_warning 'RFC1918_STRICT';
|
|
|
|
default_yes_no 'SAVE_IPSETS' , '';
|
|
default_yes_no 'STARTUP_ENABLED' , 'Yes';
|
|
default_yes_no 'DELAYBLACKLISTLOAD' , '';
|
|
default_yes_no 'MAPOLDACTIONS' , 'Yes';
|
|
|
|
warning_message 'DELAYBLACKLISTLOAD=Yes is not supported by Shorewall ' . $globals{VERSION} if $config{DELAYBLACKLISTLOAD};
|
|
|
|
default_yes_no 'LOGTAGONLY' , ''; $globals{LOGTAGONLY} = $config{LOGTAGONLY};
|
|
|
|
default_yes_no 'FASTACCEPT' , '';
|
|
|
|
fatal_error "BLACKLISTNEWONLY=No may not be specified with FASTACCEPT=Yes" if $config{FASTACCEPT} && ! $config{BLACKLISTNEWONLY};
|
|
|
|
default_yes_no 'IMPLICIT_CONTINUE' , '';
|
|
default_yes_no 'HIGH_ROUTE_MARKS' , '';
|
|
default_yes_no 'TC_EXPERT' , '';
|
|
default_yes_no 'USE_ACTIONS' , 'Yes';
|
|
|
|
warning_message 'USE_ACTIONS=No is not supported by Shorewall ' . $globals{VERSION} unless $config{USE_ACTIONS};
|
|
|
|
default_yes_no 'EXPORTPARAMS' , '';
|
|
default_yes_no 'EXPAND_POLICIES' , '';
|
|
default_yes_no 'KEEP_RT_TABLES' , '';
|
|
default_yes_no 'DELETE_THEN_ADD' , 'Yes';
|
|
default_yes_no 'AUTO_COMMENT' , 'Yes';
|
|
default_yes_no 'MULTICAST' , '';
|
|
default_yes_no 'MARK_IN_FORWARD_CHAIN' , '';
|
|
default_yes_no 'MANGLE_ENABLED' , have_capability 'MANGLE_ENABLED' ? 'Yes' : '';
|
|
default_yes_no 'NULL_ROUTE_RFC1918' , '';
|
|
default_yes_no 'USE_DEFAULT_RT' , '';
|
|
default_yes_no 'RESTORE_DEFAULT_ROUTE' , 'Yes';
|
|
default_yes_no 'AUTOMAKE' , '';
|
|
default_yes_no 'WIDE_TC_MARKS' , '';
|
|
default_yes_no 'TRACK_PROVIDERS' , '';
|
|
|
|
default_yes_no 'ACCOUNTING' , 'Yes';
|
|
default_yes_no 'OPTIMIZE_ACCOUNTING' , '';
|
|
|
|
if ( defined $config{ACCOUNTING_TABLE} ) {
|
|
my $value = $config{ACCOUNTING_TABLE};
|
|
fatal_error "Invalid ACCOUNTING_TABLE setting ($value)" unless $value eq 'filter' || $value eq 'mangle';
|
|
} else {
|
|
$config{ACCOUNTING_TABLE} = 'filter';
|
|
}
|
|
|
|
default_yes_no 'DYNAMIC_BLACKLIST' , 'Yes';
|
|
default_yes_no 'REQUIRE_INTERFACE' , '';
|
|
default_yes_no 'FORWARD_CLEAR_MARK' , have_capability 'MARK' ? 'Yes' : '';
|
|
default_yes_no 'COMPLETE' , '';
|
|
default_yes_no 'EXPORTMODULES' , '';
|
|
default_yes_no 'LEGACY_FASTSTART' , '';
|
|
|
|
require_capability 'MARK' , 'FOREWARD_CLEAR_MARK=Yes', 's', if $config{FORWARD_CLEAR_MARK};
|
|
|
|
numeric_option 'TC_BITS', $config{WIDE_TC_MARKS} ? 14 : 8 , 0;
|
|
numeric_option 'MASK_BITS', $config{WIDE_TC_MARKS} ? 16 : 8, $config{TC_BITS};
|
|
numeric_option 'PROVIDER_BITS' , 8, 0;
|
|
numeric_option 'PROVIDER_OFFSET' , $config{HIGH_ROUTE_MARKS} ? $config{WIDE_TC_MARKS} ? 16 : 8 : 0, 0;
|
|
|
|
if ( $config{PROVIDER_OFFSET} ) {
|
|
$config{PROVIDER_OFFSET} = $config{MASK_BITS} if $config{PROVIDER_OFFSET} < $config{MASK_BITS};
|
|
fatal_error 'PROVIDER_BITS + PROVIDER_OFFSET > 31' if $config{PROVIDER_BITS} + $config{PROVIDER_OFFSET} > 31;
|
|
$globals{EXCLUSION_MASK} = 1 << ( $config{PROVIDER_OFFSET} + $config{PROVIDER_BITS} );
|
|
} elsif ( $config{MASK_BITS} >= $config{PROVIDER_BITS} ) {
|
|
$globals{EXCLUSION_MASK} = 1 << $config{MASK_BITS};
|
|
} else {
|
|
$globals{EXCLUSION_MASK} = 1 << $config{PROVIDER_BITS};
|
|
}
|
|
|
|
$globals{TC_MAX} = make_mask( $config{TC_BITS} );
|
|
$globals{TC_MASK} = make_mask( $config{MASK_BITS} );
|
|
$globals{PROVIDER_MIN} = 1 << $config{PROVIDER_OFFSET};
|
|
$globals{PROVIDER_MASK} = make_mask( $config{PROVIDER_BITS} ) << $config{PROVIDER_OFFSET};
|
|
|
|
if ( ( my $userbits = $config{PROVIDER_OFFSET} - $config{TC_BITS} ) > 0 ) {
|
|
$globals{USER_MASK} = make_mask( $userbits ) << $config{TC_BITS};
|
|
} else {
|
|
$globals{USER_MASK} = 0;
|
|
}
|
|
|
|
if ( defined ( $val = $config{ZONE2ZONE} ) ) {
|
|
fatal_error "Invalid ZONE2ZONE value ( $val )" unless $val =~ /^[2-]$/;
|
|
} else {
|
|
$config{ZONE2ZONE} = '2';
|
|
}
|
|
|
|
default 'BLACKLIST_DISPOSITION' , 'DROP';
|
|
|
|
unless ( ( $val = $config{BLACKLIST_DISPOSITION} ) =~ /^(?:A_)?DROP$/ || $config{BLACKLIST_DISPOSITION} =~ /^(?:A_)?REJECT/ ) {
|
|
fatal_error q(BLACKLIST_DISPOSITION must be 'DROP', 'A_DROP', 'REJECT' or 'A_REJECT');
|
|
}
|
|
|
|
require_capability 'AUDIT_TARGET', "BLACKLIST_DISPOSITION=$val", 's' if $val =~ /^A_/;
|
|
|
|
default 'SMURF_DISPOSITION' , 'DROP';
|
|
|
|
unless ( ( $val = $config{SMURF_DISPOSITION} ) =~ /^(?:A_)?DROP$/ ) {
|
|
fatal_error q(SMURF_DISPOSITION must be 'DROP' or 'A_DROP');
|
|
}
|
|
|
|
require_capability 'AUDIT_TARGET', "SMURF_DISPOSITION=$val", 's' if $val =~ /^A_/;
|
|
|
|
default_log_level 'BLACKLIST_LOGLEVEL', '';
|
|
default_log_level 'MACLIST_LOG_LEVEL', '';
|
|
default_log_level 'TCP_FLAGS_LOG_LEVEL', '';
|
|
default_log_level 'RFC1918_LOG_LEVEL', '';
|
|
|
|
warning_message "RFC1918_LOG_LEVEL=$config{RFC1918_LOG_LEVEL} ignored. The 'norfc1918' interface/host option is no longer supported" if $config{RFC1918_LOG_LEVEL};
|
|
|
|
default_log_level 'SMURF_LOG_LEVEL', '';
|
|
default_log_level 'LOGALLNEW', '';
|
|
|
|
default_log_level 'SFILTER_LOG_LEVEL', 'info';
|
|
|
|
if ( $val = $config{SFILTER_DISPOSITION} ) {
|
|
fatal_error "Invalid SFILTER_DISPOSITION setting ($val)" unless $val =~ /^(A_)?(DROP|REJECT)$/;
|
|
require_capability 'AUDIT_TARGET' , "SFILTER_DISPOSITION=$val", 's' if $1;
|
|
} else {
|
|
$config{SFILTER_DISPOSITION} = 'DROP';
|
|
}
|
|
|
|
if ( $val = $config{MACLIST_DISPOSITION} ) {
|
|
if ( $val =~ /^(?:A_)?DROP$/ ) {
|
|
$globals{MACLIST_TARGET} = $val;
|
|
} elsif ( $val eq 'REJECT' ) {
|
|
$globals{MACLIST_TARGET} = 'reject';
|
|
} elsif ( $val eq 'A_REJECT' ) {
|
|
$globals{MACLIST_TARGET} = $val;
|
|
} elsif ( $val eq 'ACCEPT' ) {
|
|
$globals{MACLIST_TARGET} = 'RETURN';
|
|
} else {
|
|
fatal_error "Invalid value ($config{MACLIST_DISPOSITION}) for MACLIST_DISPOSITION"
|
|
}
|
|
|
|
require_capability 'AUDIT_TARGET' , "MACLIST_DISPOSITION=$val", 's' if $val =~ /^A_/;
|
|
} else {
|
|
$config{MACLIST_DISPOSITION} = 'REJECT';
|
|
$globals{MACLIST_TARGET} = 'reject';
|
|
}
|
|
|
|
if ( $val = $config{MACLIST_TABLE} ) {
|
|
if ( $val eq 'mangle' ) {
|
|
fatal_error 'MACLIST_DISPOSITION=$1 is not allowed with MACLIST_TABLE=mangle' if $config{MACLIST_DISPOSITION} =~ /^((?:A)?REJECT)$/;
|
|
} else {
|
|
fatal_error "Invalid value ($val) for MACLIST_TABLE option" unless $val eq 'filter';
|
|
}
|
|
} else {
|
|
default 'MACLIST_TABLE' , 'filter';
|
|
}
|
|
|
|
if ( $val = $config{TCP_FLAGS_DISPOSITION} ) {
|
|
fatal_error "Invalid value ($config{TCP_FLAGS_DISPOSITION}) for TCP_FLAGS_DISPOSITION" unless $val =~ /^(?:(?:A_)?(?:REJECT|DROP)|ACCEPT)$/;
|
|
} else {
|
|
$config{TCP_FLAGS_DISPOSITION} = 'DROP';
|
|
}
|
|
|
|
require_capability 'AUDIT_TARGET' , "TCP_FLAGS_DISPOSITION=$val", 's' if $val =~ /^A_/;
|
|
|
|
default 'TC_ENABLED' , $family == F_IPV4 ? 'Internal' : 'no';
|
|
|
|
$val = "\L$config{TC_ENABLED}";
|
|
|
|
if ( $val eq 'yes' ) {
|
|
my $file = find_file 'tcstart';
|
|
fatal_error "Unable to find tcstart file" unless -f $file;
|
|
$globals{TC_SCRIPT} = $file;
|
|
} elsif ( $val eq 'internal' ) {
|
|
$config{TC_ENABLED} = 'Internal';
|
|
} elsif ( $val eq 'shared' ) {
|
|
$config{TC_ENABLED} = 'Shared';
|
|
} elsif ( $val eq 'simple' ) {
|
|
$config{TC_ENABLED} = 'Simple';
|
|
} else {
|
|
fatal_error "Invalid value ($config{TC_ENABLED}) for TC_ENABLED" unless $val eq 'no';
|
|
$config{TC_ENABLED} = '';
|
|
}
|
|
|
|
if ( $config{TC_ENABLED} ) {
|
|
fatal_error "TC_ENABLED=$config{TC_ENABLED} is not allowed with MANGLE_ENABLED=No" unless $config{MANGLE_ENABLED};
|
|
require_capability 'MANGLE_ENABLED', "TC_ENABLED=$config{TC_ENABLED}", 's';
|
|
}
|
|
|
|
if ( $val = $config{TC_PRIOMAP} ) {
|
|
my @priomap = split ' ',$val;
|
|
fatal_error "Invalid TC_PRIOMAP ($val)" unless @priomap == 16;
|
|
for ( @priomap ) {
|
|
fatal_error "Invalid TC_PRIOMAP entry ($_)" unless /^[1-3]$/;
|
|
$_--;
|
|
}
|
|
|
|
$config{TC_PRIOMAP} = join ' ', @priomap;
|
|
} else {
|
|
$config{TC_PRIOMAP} = '1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1';
|
|
}
|
|
|
|
default 'RESTOREFILE' , 'restore';
|
|
default 'IPSECFILE' , 'zones';
|
|
default 'DROP_DEFAULT' , 'Drop';
|
|
default 'REJECT_DEFAULT' , 'Reject';
|
|
default 'QUEUE_DEFAULT' , 'none';
|
|
default 'NFQUEUE_DEFAULT' , 'none';
|
|
default 'ACCEPT_DEFAULT' , 'none';
|
|
default 'OPTIMIZE' , 0;
|
|
|
|
fatal_error 'IPSECFILE=ipsec is not supported by Shorewall ' . $globals{VERSION} if $config{IPSECFILE} eq 'ipsec';
|
|
fatal_error "Invalid IPSECFILE value ($config{IPSECFILE}" unless $config{IPSECFILE} eq 'zones';
|
|
|
|
for my $default qw/DROP_DEFAULT REJECT_DEFAULT QUEUE_DEFAULT NFQUEUE_DEFAULT ACCEPT_DEFAULT/ {
|
|
$config{$default} = 'none' if "\L$config{$default}" eq 'none';
|
|
}
|
|
|
|
$val = numeric_value $config{OPTIMIZE};
|
|
|
|
fatal_error "Invalid OPTIMIZE value ($config{OPTIMIZE})" unless defined( $val ) && $val >= 0 && ( $val & ( 4096 ^ -1 ) ) <= 15;
|
|
|
|
$globals{MARKING_CHAIN} = $config{MARK_IN_FORWARD_CHAIN} ? 'tcfor' : 'tcpre';
|
|
|
|
if ( $val = $config{LOGFORMAT} ) {
|
|
my $result;
|
|
|
|
eval {
|
|
if ( $val =~ /%d/ ) {
|
|
$globals{LOGRULENUMBERS} = 'Yes';
|
|
$result = sprintf "$val", 'fooxx2barxx', 1, 'ACCEPT';
|
|
} else {
|
|
$result = sprintf "$val", 'fooxx2barxx', 'ACCEPT';
|
|
}
|
|
};
|
|
|
|
fatal_error "Invalid LOGFORMAT ($val)" if $@;
|
|
|
|
fatal_error "LOGFORMAT string is longer than 29 characters ($val)" if length $result > 29;
|
|
|
|
$globals{MAXZONENAMELENGTH} = int ( 5 + ( ( 29 - (length $result ) ) / 2) );
|
|
} else {
|
|
$config{LOGFORMAT}='Shorewall:%s:%s:';
|
|
$globals{MAXZONENAMELENGTH} = 5;
|
|
}
|
|
|
|
if ( $config{LOCKFILE} ) {
|
|
my ( $file, $dir, $suffix );
|
|
|
|
eval {
|
|
( $file, $dir, $suffix ) = fileparse( $config{LOCKFILE} );
|
|
};
|
|
|
|
cleanup, die $@ if $@;
|
|
|
|
fatal_error "LOCKFILE=$config{LOCKFILE}: Directory $dir does not exist" unless $export or -d $dir;
|
|
} else {
|
|
$config{LOCKFILE} = '';
|
|
}
|
|
}
|
|
|
|
#
|
|
# The values of the options in @propagateconfig are copied to the script file in OPTION=<value> format.
|
|
#
|
|
sub propagateconfig() {
|
|
for my $option ( @propagateconfig ) {
|
|
my $value = $config{$option};
|
|
$value = '' unless defined $value;
|
|
emit "$option=\"$value\"";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Add a shell script file to the output script -- Return true if the
|
|
# file exists and is not in /usr/share/shorewall/ and is non-empty.
|
|
#
|
|
sub append_file( $;$$ ) {
|
|
my ( $file, $nomsg, $unindented ) = @_;
|
|
my $user_exit = find_file $file;
|
|
my $result = 0;
|
|
my $save_indent = $indent;
|
|
|
|
$indent = '' if $unindented;
|
|
|
|
unless ( $user_exit =~ m(^/usr/share/shorewall6?/) ) {
|
|
if ( -f $user_exit ) {
|
|
if ( $nomsg ) {
|
|
#
|
|
# Suppress progress message
|
|
#
|
|
$result = copy1 $user_exit;
|
|
} else {
|
|
#
|
|
# Include progress message -- Pretend progress_message call was in the file
|
|
#
|
|
$result = 1;
|
|
save_progress_message "Processing $user_exit ...";
|
|
copy1 $user_exit;
|
|
}
|
|
}
|
|
}
|
|
|
|
$indent = $save_indent;
|
|
|
|
$result;
|
|
}
|
|
|
|
#
|
|
# Run a Perl extension script
|
|
#
|
|
sub run_user_exit( $ ) {
|
|
my $chainref = $_[0];
|
|
my $file = find_file $chainref->{name};
|
|
|
|
if ( -f $file ) {
|
|
progress_message2 "Running $file...";
|
|
|
|
my $command = qq(package Shorewall::User;\nno strict;\n# line 1 "$file"\n) . `cat $file`;
|
|
|
|
unless (my $return = eval $command ) {
|
|
fatal_error "Couldn't parse $file: $@" if $@;
|
|
|
|
unless ( defined $return ) {
|
|
fatal_error "Couldn't do $file: $!" if $!;
|
|
fatal_error "Couldn't do $file";
|
|
}
|
|
|
|
fatal_error "$file returned a false value";
|
|
}
|
|
}
|
|
}
|
|
|
|
sub run_user_exit1( $ ) {
|
|
my $file = find_file $_[0];
|
|
|
|
if ( -f $file ) {
|
|
progress_message2 "Running $file...";
|
|
#
|
|
# File may be empty -- in which case eval would fail
|
|
#
|
|
push_open $file;
|
|
|
|
if ( read_a_line1 ) {
|
|
close_file;
|
|
|
|
my $command = qq(package Shorewall::User;\n# line 1 "$file"\n) . `cat $file`;
|
|
|
|
unless (my $return = eval $command ) {
|
|
fatal_error "Couldn't parse $file: $@" if $@;
|
|
|
|
unless ( defined $return ) {
|
|
fatal_error "Couldn't do $file: $!" if $!;
|
|
fatal_error "Couldn't do $file";
|
|
}
|
|
|
|
fatal_error "$file returned a false value";
|
|
}
|
|
} else {
|
|
pop_open;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub run_user_exit2( $$ ) {
|
|
my ($file, $chainref) = ( find_file $_[0], $_[1] );
|
|
|
|
if ( -f $file ) {
|
|
progress_message2 "Running $file...";
|
|
#
|
|
# File may be empty -- in which case eval would fail
|
|
#
|
|
push_open $file;
|
|
|
|
if ( read_a_line1 ) {
|
|
close_file;
|
|
|
|
unless (my $return = eval `cat $file` ) {
|
|
fatal_error "Couldn't parse $file: $@" if $@;
|
|
|
|
unless ( defined $return ) {
|
|
fatal_error "Couldn't do $file: $!" if $!;
|
|
fatal_error "Couldn't do $file";
|
|
}
|
|
|
|
fatal_error "$file returned a false value";
|
|
}
|
|
}
|
|
|
|
pop_open;
|
|
|
|
}
|
|
}
|
|
|
|
#
|
|
# Generate the aux config file for Shorewall Lite
|
|
#
|
|
sub generate_aux_config() {
|
|
sub conditionally_add_option( $ ) {
|
|
my $option = $_[0];
|
|
|
|
my $value = $config{$option};
|
|
|
|
emit "[ -n \"\${$option:=$value}\" ]" if defined $value && $value ne '';
|
|
}
|
|
|
|
sub conditionally_add_option1( $ ) {
|
|
my $option = $_[0];
|
|
|
|
my $value = $config{$option};
|
|
|
|
emit "$option=\"$value\"" if $value;
|
|
}
|
|
|
|
create_temp_aux_config;
|
|
|
|
my $date = localtime;
|
|
|
|
emit "#\n# Shorewall auxiliary configuration file created by Shorewall version $globals{VERSION} - $date\n#";
|
|
|
|
for my $option qw(VERBOSITY LOGFILE LOGFORMAT IPTABLES IP6TABLES IP TC IPSET PATH SHOREWALL_SHELL SUBSYSLOCK LOCKFILE RESTOREFILE) {
|
|
conditionally_add_option $option;
|
|
}
|
|
|
|
conditionally_add_option1 'TC_ENABLED';
|
|
|
|
my $fn = find_file 'scfilter';
|
|
|
|
if ( -f $fn ) {
|
|
emit( '',
|
|
'show_connections_filter() {' );
|
|
push_indent;
|
|
append_file( $fn,1 ) or emit 'cat -';
|
|
pop_indent;
|
|
emit '}';
|
|
}
|
|
|
|
$fn = find_file 'dumpfilter';
|
|
|
|
if ( -f $fn ) {
|
|
emit( '',
|
|
'dump_filter() {' );
|
|
push_indent;
|
|
append_file( $fn,1 ) or emit 'cat -';
|
|
pop_indent;
|
|
emit '}';
|
|
}
|
|
|
|
finalize_aux_config;
|
|
}
|
|
|
|
END {
|
|
cleanup;
|
|
}
|
|
|
|
1;
|