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18 Commits

Author SHA1 Message Date
Tom Eastep
dd3c0daa08 Handle inline matches correctly in the mangle file
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-29 13:33:47 -07:00
Tom Eastep
4fddfcfba0 More complete fix for inline matches
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-29 13:15:01 -07:00
Tom Eastep
382ab380a2 Merge branch 'master' of ssh://git.code.sf.net/p/shorewall/code 2016-03-29 07:36:49 -07:00
Tuomo Soini
2342c7cd9c Perl/Shorewall/Chains.pm: Fix warning with older perl 2016-03-29 09:58:33 +03:00
Tom Eastep
66ae4975b2 Allow :R with DIVERT
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-28 15:52:49 -07:00
Tom Eastep
5b7a9db170 Correct clearing of inline matches
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-28 15:48:59 -07:00
Roberto C. Sánchez
899a317c95 Fix typos 2016-03-26 22:25:30 -04:00
Tom Eastep
89adc3ea68 Use an address variable rather than find_first_interface_address()
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-26 13:13:15 -07:00
Tom Eastep
ad87d94e33 Small efficiency change
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-26 13:12:33 -07:00
Tom Eastep
8a6941707a Updates to the config basics article
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-26 09:01:02 -07:00
Tom Eastep
0b049a55e0 Correct Three-interface doc.
- find_interface_address -> find_first_interface_address
2016-03-25 09:34:49 -07:00
Tom Eastep
f86abf9552 Eliminate @columnstack -- simple save the columns array on the call stack.
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-22 10:49:40 -07:00
Tom Eastep
9fe1a34412 Tighten up editing of configuration options
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-21 12:03:45 -07:00
Tom Eastep
abe533b6e3 Correct the action on ingress filters
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-19 13:45:33 -07:00
Tom Eastep
1c3140789c Add stab to ingress qdiscs
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-19 13:25:39 -07:00
Tom Eastep
0399a346d0 Replace a silly line of code.
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-19 12:05:45 -07:00
Tom Eastep
6ed3861d76 Correct Mangle Action Handling for second visit to the same action
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-18 15:25:52 -07:00
Tom Eastep
7a18847c14 Correct handling of log level in a _DEFAULT setting.
Signed-off-by: Tom Eastep <teastep@shorewall.net>
2016-03-18 15:25:14 -07:00
12 changed files with 119 additions and 118 deletions

View File

@@ -8627,12 +8627,12 @@ sub preview_netfilter_load() {
print( '[ -n "$g_docker" ] && echo ":DOCKER - [0:0]" >&3' );
print "\n";
} elsif ( $name eq 'DOCKER-ISOLATION' ) {
enter_cmd_mode1 unless $mode = CMD_MODE;
enter_cmd_mode1 unless $mode == CMD_MODE;
print( '[ -n "$g_dockernetwork" ] && echo ":DOCKER-ISOLATION - [0:0]" >&3' );
print "\n";
enter_cat_mode1;
} else {
enter_cmd_mode1 unless $mode = CMD_MODE;
enter_cmd_mode1 unless $mode == CMD_MODE;
print( ":$name - [0:0]\n" );
}
} else {

View File

@@ -1477,9 +1477,9 @@ sub hex_value( $ ) {
# Strip off superfluous leading zeros from a hex number
#
sub normalize_hex( $ ) {
my $val = lc shift;
my $val = lc $_[0];
$val =~ s/^0// while $val =~ /^0/ && length $val > 1;
$val =~ s/^0+/0/;
$val;
}
@@ -6106,7 +6106,7 @@ sub get_configuration( $$$$ ) {
default_log_level 'SFILTER_LOG_LEVEL', 'info';
if ( $val = $config{SFILTER_DISPOSITION} ) {
if ( supplied( $val = $config{SFILTER_DISPOSITION} ) ) {
fatal_error "Invalid SFILTER_DISPOSITION setting ($val)" unless $val =~ /^(A_)?(DROP|REJECT)$/;
require_capability 'AUDIT_TARGET' , "SFILTER_DISPOSITION=$val", 's' if $1;
} else {
@@ -6115,14 +6115,14 @@ sub get_configuration( $$$$ ) {
default_log_level 'RPFILTER_LOG_LEVEL', 'info';
if ( $val = $config{RPFILTER_DISPOSITION} ) {
if ( supplied ( $val = $config{RPFILTER_DISPOSITION} ) ) {
fatal_error "Invalid RPFILTER_DISPOSITION setting ($val)" unless $val =~ /^(A_)?(DROP|REJECT)$/;
require_capability 'AUDIT_TARGET' , "RPFILTER_DISPOSITION=$val", 's' if $1;
} else {
$config{RPFILTER_DISPOSITION} = 'DROP';
}
if ( $val = $config{MACLIST_DISPOSITION} ) {
if ( supplied( $val = $config{MACLIST_DISPOSITION} ) ) {
if ( $val =~ /^(?:A_)?DROP$/ ) {
$globals{MACLIST_TARGET} = $val;
} elsif ( $val eq 'REJECT' ) {
@@ -6141,7 +6141,7 @@ sub get_configuration( $$$$ ) {
$globals{MACLIST_TARGET} = 'reject';
}
if ( $val = $config{RELATED_DISPOSITION} ) {
if ( supplied( $val = $config{RELATED_DISPOSITION} ) ) {
if ( $val =~ /^(?:A_)?(?:DROP|ACCEPT)$/ ) {
$globals{RELATED_TARGET} = $val;
} elsif ( $val eq 'REJECT' ) {
@@ -6160,7 +6160,7 @@ sub get_configuration( $$$$ ) {
$globals{RELATED_TARGET} = 'ACCEPT';
}
if ( $val = $config{INVALID_DISPOSITION} ) {
if ( supplied( $val = $config{INVALID_DISPOSITION} ) ) {
if ( $val =~ /^(?:A_)?DROP$/ ) {
$globals{INVALID_TARGET} = $val;
} elsif ( $val eq 'REJECT' ) {
@@ -6179,7 +6179,7 @@ sub get_configuration( $$$$ ) {
$globals{INVALID_TARGET} = '';
}
if ( $val = $config{UNTRACKED_DISPOSITION} ) {
if ( supplied( $val = $config{UNTRACKED_DISPOSITION} ) ) {
if ( $val =~ /^(?:A_)?(?:DROP|ACCEPT)$/ ) {
$globals{UNTRACKED_TARGET} = $val;
} elsif ( $val eq 'REJECT' ) {
@@ -6198,7 +6198,7 @@ sub get_configuration( $$$$ ) {
$globals{UNTRACKED_TARGET} = '';
}
if ( $val = $config{MACLIST_TABLE} ) {
if ( supplied( $val = $config{MACLIST_TABLE} ) ) {
if ( $val eq 'mangle' ) {
fatal_error 'MACLIST_DISPOSITION=$1 is not allowed with MACLIST_TABLE=mangle' if $config{MACLIST_DISPOSITION} =~ /^((?:A)?REJECT)$/;
} else {
@@ -6208,7 +6208,7 @@ sub get_configuration( $$$$ ) {
default 'MACLIST_TABLE' , 'filter';
}
if ( $val = $config{TCP_FLAGS_DISPOSITION} ) {
if ( supplied( $val = $config{TCP_FLAGS_DISPOSITION} ) ) {
fatal_error "Invalid value ($config{TCP_FLAGS_DISPOSITION}) for TCP_FLAGS_DISPOSITION" unless $val =~ /^(?:(A_)?(?:REJECT|DROP))|ACCEPT$/;
require_capability 'AUDIT_TARGET' , "TCP_FLAGS_DISPOSITION=$val", 's' if $1;
} else {
@@ -6239,7 +6239,7 @@ sub get_configuration( $$$$ ) {
require_capability 'MANGLE_ENABLED', "TC_ENABLED=$config{TC_ENABLED}", 's';
}
if ( $val = $config{TC_PRIOMAP} ) {
if ( supplied( $val = $config{TC_PRIOMAP} ) ) {
my @priomap = split ' ',$val;
fatal_error "Invalid TC_PRIOMAP ($val)" unless @priomap == 16;
for ( @priomap ) {
@@ -6258,12 +6258,13 @@ sub get_configuration( $$$$ ) {
default 'QUEUE_DEFAULT' , 'none';
default 'NFQUEUE_DEFAULT' , 'none';
default 'ACCEPT_DEFAULT' , 'none';
default 'OPTIMIZE' , 0;
for my $default ( qw/DROP_DEFAULT REJECT_DEFAULT QUEUE_DEFAULT NFQUEUE_DEFAULT ACCEPT_DEFAULT/ ) {
$config{$default} = 'none' if "\L$config{$default}" eq 'none';
}
default 'OPTIMIZE' , 0;
if ( ( $val = $config{OPTIMIZE} ) =~ /^all$/i ) {
$config{OPTIMIZE} = $val = OPTIMIZE_ALL;
} elsif ( $val =~ /^none$/i ) {

View File

@@ -205,10 +205,6 @@ our %auditpolicies = ( ACCEPT => 1,
#
our @columns;
#
# Used to handle recursive inline invocations.
#
our @columnstack;
#
# Hidden return from perl_action_[tcp_]helper that indicates that a rule was generated
#
our $actionresult;
@@ -354,7 +350,6 @@ sub initialize( $ ) {
%usedactions = ();
@columns = ( ( '-' ) x LAST_COLUMN, 0 );
@columnstack = ();
if ( $family == F_IPV4 ) {
@builtins = qw/dropBcast allowBcast dropNotSyn rejNotSyn allowinUPnP forwardUPnP Limit/;
@@ -535,13 +530,13 @@ sub process_default_action( $$$$ ) {
} elsif ( ( $targets{$def} || 0 ) == INLINE ) {
$default = $def;
$default = "$def($param)" if supplied $param;
$default = join( ':', $default, $level ) if $level ne 'none';
} elsif ( $default_option ) {
fatal_error "Unknown Action ($default) in $policy setting";
} else {
fatal_error "Unknown Default Action ($default)";
}
$default = join( ':', $default, $level ) if $level ne 'none';
} else {
$default = $default_actions{$policy} || 'none';
}
@@ -1803,6 +1798,7 @@ sub process_action(\$\$$) {
my ( $action, $level, $tag, undef, $param ) = split /:/, $wholeaction, ACTION_TUPLE_ELEMENTS;
my $type = $targets{$action};
my $actionref = $actions{$action};
my $matches = fetch_inline_matches;
if ( $type & BUILTIN ) {
$level = '' if $level =~ /none!?/;
@@ -1915,6 +1911,7 @@ sub process_action(\$\$$) {
$dscp ,
$state,
$time );
set_inline_matches( $matches );
}
} else {
my ($target, $source, $dest, $proto, $ports, $sports, $origdest, $rate, $user, $mark, $connlimit, $time, $headers, $condition, $helper );
@@ -1966,6 +1963,8 @@ sub process_action(\$\$$) {
$condition,
$helper,
0 );
set_inline_matches( $matches );
}
}
@@ -2204,6 +2203,7 @@ sub process_macro ($$$$$$$$$$$$$$$$$$$$$) {
my $macrofile = $macros{$macro};
my $save_matches = fetch_inline_matches;
progress_message "..Expanding Macro $macrofile...";
@@ -2311,6 +2311,8 @@ sub process_macro ($$$$$$$$$$$$$$$$$$$$$) {
);
progress_message " Rule \"$currentline\" $done";
set_inline_matches( $save_matches );
}
pop_open;
@@ -2342,6 +2344,7 @@ sub process_inline ($$$$$$$$$$$$$$$$$$$$$$) {
my $inlinefile = $actionref->{file};
my $options = $actionref->{options};
my $nolog = $options & NOLOG_OPT;
my $save_matches = fetch_inline_matches;
setup_audit_action( $inline ) if $options & AUDIT_OPT;
@@ -2449,6 +2452,8 @@ sub process_inline ($$$$$$$$$$$$$$$$$$$$$$) {
);
progress_message " Rule \"$currentline\" $done";
set_inline_matches( $save_matches );
}
pop_comment( $save_comment );
@@ -3016,7 +3021,7 @@ sub process_rule ( $$$$$$$$$$$$$$$$$$$$ ) {
#
# Push the current column array onto the column stack
#
push @columnstack, [ ( $actionresult, @columns ) ];
my $savecolumns = [ ( $actionresult, @columns ) ];
#
# And store the (modified) columns into the columns array for use by perl_action[_tcp]_helper
#
@@ -3047,7 +3052,7 @@ sub process_rule ( $$$$$$$$$$$$$$$$$$$$ ) {
$helper,
$wildcard ) || $actionresult;
( $actionresult, @columns ) = @{pop @columnstack};
( $actionresult, @columns ) = @$savecolumns;;
$macro_nest_level--;
@@ -3667,10 +3672,6 @@ sub process_raw_rule ( ) {
$wild ) ) {
$generated = 1;
}
#
# Clear inline matches
#
set_inline_matches( '' );
}
}
}
@@ -3792,6 +3793,7 @@ sub process_mangle_inline( $$$$$$$$$$$$$$$$$$$ ) {
$chainref->{name} );
my $inlinefile = $actions{$inline}{file};
my $matches = fetch_inline_matches;
progress_message "..Expanding inline action $inlinefile...";
@@ -3886,6 +3888,8 @@ sub process_mangle_inline( $$$$$$$$$$$$$$$$$$$ ) {
}
progress_message " Rule \"$currentline\" $done";
set_inline_matches( $matches );
}
pop_comment( $save_comment );
@@ -4174,7 +4178,9 @@ sub process_mangle_rule1( $$$$$$$$$$$$$$$$$$ ) {
minparams => 0,
maxparams => 0,
function => sub () {
fatal_error 'DIVERT is only allowed in the PREROUTING chain' if $designator && $designator != PREROUTING;
fatal_error 'DIVERT is only allowed in the PREROUTING chain' if $designator &&
$designator != PREROUTING &&
$designator != REALPREROUTING;
my $mark = in_hex( $globals{TPROXY_MARK} ) . '/' . in_hex( $globals{TPROXY_MARK} );
unless ( $divertref ) {
@@ -4544,14 +4550,14 @@ sub process_mangle_rule1( $$$$$$$$$$$$$$$$$$ ) {
#
# Capture the name of the action chain
#
$target = $ref->{name};
} else {
#
# We've seen this tuple before
#
$target = $usedactions{$normalized_target}->{name};
$ref = $usedactions{$normalized_target};
}
$target = $ref->{name};
$commandref->{allowedchains} = $ref->{allowedchains};
}
};
@@ -4607,7 +4613,7 @@ sub process_mangle_rule1( $$$$$$$$$$$$$$$$$$ ) {
# Function Body
#
if ( $inchain ) {
( $inaction, undef, undef, undef ) = split /:/, $chainref->{action}, 4 if $chainref->{action};
( $inaction ) = split /:/, $chainref->{action} if $chainref->{action};
#
# Set chain type
#

View File

@@ -213,23 +213,23 @@ sub process_in_bandwidth( $ ) {
[ $in_rate, $in_burst, $in_avrate, $in_interval, $in_decay ];
}
sub handle_in_bandwidth( $$ ) {
my ($physical, $arrayref ) = @_;
sub handle_in_bandwidth( $$$ ) {
my ($physical, $stab, $arrayref ) = @_;
return 1 unless $arrayref;
my ($in_rate, $in_burst, $in_avrate, $in_interval, $in_decay ) = @$arrayref;
emit ( "run_tc qdisc add dev $physical handle ffff: ingress" );
emit ( "run_tc qdisc add dev $physical handle ffff: ${stab}ingress" );
if ( have_capability 'BASIC_FILTER' ) {
if ( $in_rate ) {
emit( "run_tc filter add dev $physical parent ffff: protocol all prio 10 basic \\",
" police mpu 64 rate ${in_rate}kbit burst $in_burst action drop\n" );
" police mpu 64 drop rate ${in_rate}kbit burst $in_burst\n" );
} else {
emit( "run_tc filter add dev $physical parent ffff: protocol all prio 10 \\",
" estimator $in_interval $in_decay basic \\",
" police avrate ${in_avrate}kbit action drop\n" );
" police drop avrate ${in_avrate}kbit\n" );
}
} else {
emit( "run_tc filter add dev $physical parent ffff: protocol all prio 10 \\" ,
@@ -302,7 +302,7 @@ sub process_simple_device() {
"qt \$TC qdisc del dev $physical ingress\n"
);
handle_in_bandwidth( $physical, $in_rate );
handle_in_bandwidth( $physical, '', $in_rate );
if ( $out_part ne '-' ) {
my ( $out_bandwidth, $burst, $latency, $peak, $minburst ) = split ':', $out_part;
@@ -1856,7 +1856,7 @@ sub process_traffic_shaping() {
qq(fi) );
}
handle_in_bandwidth( $device, $devref->{in_bandwidth} );
handle_in_bandwidth( $device, $stab, $devref->{in_bandwidth} );
for my $rdev ( @{$devref->{redirected}} ) {
my $phyrdev = physical_name( $rdev );

View File

@@ -390,7 +390,7 @@ DIVERTHA - - tcp</programlisting>
<para>Allows you to place your own ip[6]tables matches at the
end of the line following a semicolon (";"). If an
<replaceable>action</replaceable> is specified, the compiler
procedes as if that <replaceable>action</replaceable> had been
proceeds as if that <replaceable>action</replaceable> had been
specified in this column. If no action is specified, then you
may include your own jump ("-j
<replaceable>target</replaceable>

View File

@@ -1441,7 +1441,7 @@
<para>When <option>s:</option> or <option>d:</option> is specified,
the rate applies per source IP address or per destination IP address
respectively. The <replaceable>name</replaceable>s may be chosen by
the user and specifiy a hash table to be used to count matching
the user and specify a hash table to be used to count matching
connections. If not given, the name <emphasis
role="bold">shorewallN</emphasis> (where N is a unique integer) is
assumed. Where more than one rule or POLICY specifies the same name,

View File

@@ -998,7 +998,7 @@ net all DROP info</programlisting>then the chain name is 'net-all'
iptables text in a rule. You may simply preface that text with a
pair of semicolons (";;"). If alternate input is also specified in
the rule, it should appear before the semicolons and may be
seperated from normal column input by a single semicolon.</para>
separated from normal column input by a single semicolon.</para>
</listitem>
</varlistentry>

View File

@@ -401,7 +401,7 @@ DIVERTHA - - tcp</programlisting>
<para>Allows you to place your own ip[6]tables matches at the
end of the line following a semicolon (";"). If an
<replaceable>action</replaceable> is specified, the compiler
procedes as if that <replaceable>action</replaceable> had been
proceeds as if that <replaceable>action</replaceable> had been
specified in this column. If no action is specified, then you
may include your own jump ("-j
<replaceable>target</replaceable>

View File

@@ -1306,7 +1306,7 @@
<para>When <option>s:</option> or <option>d:</option> is specified,
the rate applies per source IP address or per destination IP address
respectively. The <replaceable>name</replaceable>s may be chosen by
the user and specifiy a hash table to be used to count matching
the user and specify a hash table to be used to count matching
connections. If not given, the name <emphasis
role="bold">shorewallN</emphasis> (where N is a unique integer) is
assumed. Where more than one rule or POLICY specifies the same name,

View File

@@ -846,7 +846,7 @@ net all DROP info</programlisting>then the chain name is 'net-all'
iptables text in a rule. You may simply preface that text with a
pair of semicolons (";;"). If alternate input is also specified in
the rule, it should appear before the semicolons and may be
seperated from normal column input by a single semicolon.</para>
separated from normal column input by a single semicolon.</para>
</listitem>
</varlistentry>

View File

@@ -175,20 +175,23 @@
<listitem>
<para><filename>/etc/shorewall/init</filename> - commands that you
wish to execute at the beginning of a <quote>shorewall start</quote>
or <quote>shorewall restart</quote>.</para>
wish to execute at the beginning of a <quote>shorewall
start</quote>, "shorewall reload" or <quote>shorewall
restart</quote>.</para>
</listitem>
<listitem>
<para><filename>/etc/shorewall/start</filename> - commands that you
wish to execute near the completion of a <quote>shorewall
start</quote> or <quote>shorewall restart</quote></para>
start</quote>, "shorewall reload" or <quote>shorewall
restart</quote></para>
</listitem>
<listitem>
<para><filename>/etc/shorewall/started</filename> - commands that
you wish to execute after the completion of a <quote>shorewall
start</quote> or <quote>shorewall restart</quote></para>
start</quote>, "shorewall reload" or <quote>shorewall
restart</quote></para>
</listitem>
<listitem>
@@ -1779,6 +1782,10 @@ SSH(ACCEPT) net:$MYIP $FW
<para><ulink url="Macros.html">Macro</ulink> files</para>
</listitem>
<listitem>
<para><ulink url="Actions.html">Action</ulink> files</para>
</listitem>
<listitem>
<para><ulink
url="manpages/shorewall-rules.html">shorewall-rules</ulink> (5)</para>
@@ -2570,6 +2577,44 @@ Shorewall has detected the following iptables/netfilter capabilities:
"!tcp").</para>
</section>
<section id="Ranges">
<title>Port Ranges</title>
<para>If you need to specify a range of ports, the proper syntax is
&lt;low port number&gt;:&lt;high port number&gt;. For example, if you want
to forward the range of tcp ports 4000 through 4100 to local host
192.168.1.3, the entry in /etc/shorewall/rules is:</para>
<programlisting>#ACTION SOURCE DESTINATION PROTO DPORT
DNAT net loc:192.168.1.3 tcp <emphasis role="bold">4000:4100</emphasis></programlisting>
<para>If you omit the low port number, a value of zero is assumed; if you
omit the high port number, a value of 65535 is assumed.</para>
<para>Also, unless otherwise documented, a port range can be preceded by
'!' to specify "All ports except those in this range" (e.g.,
"!4000:4100").</para>
</section>
<section id="Portlists">
<title>Port Lists</title>
<para>In most cases where a port or port range may appear, a
comma-separated list of ports or port ranges may also be entered.
Shorewall requires the Netfilter <emphasis
role="bold">multiport</emphasis> match capability if ports lists are used
(see the output of "<emphasis role="bold">shorewall show
capabilities</emphasis>").</para>
<para>Also, unless otherwise documented, a port list can be preceded by
'!' to specify "All ports except these" (e.g., "!80,443").</para>
<para>Prior to Shorewall 4.4.4, port lists appearing in the <ulink
url="manpages/shorewall-routestopped.html">shorewall-routestopped</ulink>
(5) file may specify no more than 15 ports; port ranges appearing in a
list count as two ports each.</para>
</section>
<section id="ICMP">
<title>ICMP and ICMP6 Types and Codes</title>
@@ -2646,44 +2691,6 @@ redirect =&gt; 137</programlisting>
Shorewall 4.4.19.</para>
</section>
<section id="Ranges">
<title>Port Ranges</title>
<para>If you need to specify a range of ports, the proper syntax is
&lt;low port number&gt;:&lt;high port number&gt;. For example, if you want
to forward the range of tcp ports 4000 through 4100 to local host
192.168.1.3, the entry in /etc/shorewall/rules is:</para>
<programlisting>#ACTION SOURCE DESTINATION PROTO DPORT
DNAT net loc:192.168.1.3 tcp <emphasis role="bold">4000:4100</emphasis></programlisting>
<para>If you omit the low port number, a value of zero is assumed; if you
omit the high port number, a value of 65535 is assumed.</para>
<para>Also, unless otherwise documented, a port range can be preceded by
'!' to specify "All ports except those in this range" (e.g.,
"!4000:4100").</para>
</section>
<section id="Portlists">
<title>Port Lists</title>
<para>In most cases where a port or port range may appear, a
comma-separated list of ports or port ranges may also be entered.
Shorewall requires the Netfilter <emphasis
role="bold">multiport</emphasis> match capability if ports lists are used
(see the output of "<emphasis role="bold">shorewall show
capabilities</emphasis>").</para>
<para>Also, unless otherwise documented, a port list can be preceded by
'!' to specify "All ports except these" (e.g., "!80,443").</para>
<para>Prior to Shorewall 4.4.4, port lists appearing in the <ulink
url="manpages/shorewall-routestopped.html">shorewall-routestopped</ulink>
(5) file may specify no more than 15 ports; port ranges appearing in a
list count as two ports each.</para>
</section>
<section id="MAC">
<title>Using MAC Addresses</title>
@@ -2736,9 +2743,7 @@ DNAT net loc:192.168.1.3 tcp <emphasis role="bold">4000:4100<
url="manpages/shorewall.conf.html">shorewall.conf</ulink> (5):</para>
<simplelist>
<member>LOGRATE=10/minute</member>
<member>LOGBURST=5</member>
<member>LOGLIMIT=10/minute:5</member>
</simplelist>
<para>For each logging rule, the first time the rule is reached, the
@@ -2750,11 +2755,6 @@ DNAT net loc:192.168.1.3 tcp <emphasis role="bold">4000:4100<
30 seconds, the burst will be fully recharged; back where we
started.</para>
<note>
<para>The LOGRATE and LOGBURST options are deprecated in favor of
LOGLIMIT.</para>
</note>
<para>Shorewall also supports per-IP rate limiting.</para>
<para>Another example from <ulink
@@ -2788,8 +2788,7 @@ DNAT net loc:192.168.1.3 tcp <emphasis role="bold">4000:4100<
<firstterm>Condition Match Support</firstterm> and you must be running
Shorewall 4.4.24 or later. See the output of <command>shorewall show
capabilities</command> and <command>shorewall version</command> to
determine if you can use this feature. As of this writing, Condition Match
Support requires that you install xtables-addons.</para>
determine if you can use this feature.</para>
<para>The SWITCH column contains the name of a
<firstterm>switch.</firstterm> Each switch is initially in the <emphasis
@@ -2953,8 +2952,8 @@ Comcast 2 0x20000 main <emphasis role="bold">COM_IF</emphasis>
<para>If <emphasis role="bold">detect</emphasis> is specified in the
ADDRESS column of an entry in <ulink
url="manpages/shorewall-masq.html">shorewall-masq</ulink> (5) then the
firewall still start if the optional interface in the INTERFACE column
does not have an IP address.</para>
firewall still startS if the optional interface in the INTERFACE
column does not have an IP address.</para>
</listitem>
</itemizedlist>
@@ -2972,7 +2971,8 @@ Comcast 2 0x20000 main <emphasis role="bold">COM_IF</emphasis>
<para>Shorewall allows you to have configuration directories other than
<filename class="directory">/etc/shorewall</filename>. The shorewall
check, start and restart commands allow you to specify an alternate
<command>check</command>, <command>start</command> and
<command>restart</command> commands allow you to specify an alternate
configuration directory and Shorewall will use the files in the alternate
directory rather than the corresponding files in /etc/shorewall. The
alternate directory need not contain a complete configuration; those files

View File

@@ -854,22 +854,16 @@ DNAT net dmz:10.10.11.2:80 tcp 5000</programlisting></para>
with:<programlisting>#ACTION SOURCE DEST PROTO DPORT SPORT ORIGDEST
DNAT loc dmz:10.10.11.2 tcp 80 - <emphasis>&lt;external IP&gt;</emphasis></programlisting>If
you have a dynamic IP then you must ensure that your external
interface is up before starting Shorewall and you must take steps
as follows (assume that your external interface is <filename
class="devicefile">eth0</filename>):<orderedlist>
<listitem>
<para>Include the following in /etc/shorewall/params:</para>
interface is up before starting Shorewall and you must code the
rule as follows (assume that your external interface is <filename
class="devicefile">eth0</filename>):</para>
<para><command>ETH0_IP=$(find_interface_address
eth0)</command></para>
</listitem>
<listitem>
<para>Make your <literal>loc-&gt;dmz</literal> rule:
<programlisting>#ACTION SOURCE DEST PROTO DPORT SPORT ORIGDEST
DNAT loc dmz:10.10.11.2 tcp 80 - $ETH0_IP</programlisting></para>
</listitem>
</orderedlist></para>
DNAT loc dmz:10.10.11.2 tcp 80 - &amp;eth0</programlisting>
<para>'&amp;eth0' expands to the IP address of eth0 (see <ulink
url="configuration_file_basics.htm#AddressVariables">this
article</ulink>).</para>
</listitem>
<listitem>