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Don't increase MSS

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@6539 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep 2007-06-13 23:50:26 +00:00
parent 980ec224a2
commit be8013a8b2
4 changed files with 13 additions and 5 deletions
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2
Shorewall-common/lib.config
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@ -413,7 +413,7 @@ setup_ipsec() {
if [ "$policy" != NONE ]; then
ensurechain $1
run_iptables -I $1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss $2
run_iptables -I $1 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss $2: -j TCPMSS --set-mss $2
fi
}
#

2
Shorewall-common/releasenotes.txt
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@ -36,7 +36,7 @@ Other changes in Shorewall 4.0.0 Beta 5.
The compiler program is /usr/share/shorewall-perl/compiler.pl:
compiler.pl [ <options> ] [ <filename> ]
compiler.pl [ <option> ... ] [ <filename> ]
If a <filename> is given, then the configuration will be compiled
output placed in the named file. If <filename> is not given, then

2
Shorewall-perl/Shorewall/Chains.pm
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@ -699,7 +699,7 @@ sub set_mss1( $$ ) {
my $chainref = ensure_chain 'filter', $chain;
if ( $chainref->{policy} ne 'NONE' ) {
insert_rule $chainref, 1, "-p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss $mss"
insert_rule $chainref, 1, "-p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss $mss: -j TCPMSS --set-mss $mss"
}
}

12
Shorewall-perl/Shorewall/Rules.pm
View File

@ -1777,9 +1777,17 @@ sub generate_matrix() {
sub setup_mss( $ ) {
my $clampmss = $_[0];
my $option = "\L$clampmss" eq 'yes' ? '--clamp-mss-to-pmtu' : '--set-mss $clampmss';
my $option;
my $match = '';
add_rule $filter_table->{FORWARD} , "-p tcp --tcp-flags SYN,RST SYN -j TCPMSS $option";
if ( "\L$clampmss" eq 'yes' ) {
$option = '--clamp-mss-to-pmtu';
} else {
$match = "-m tcpmss --mss $clampmss: ";
$option = '--set-mss $clampmss';
}
add_rule $filter_table->{FORWARD} , "-p tcp --tcp-flags SYN,RST SYN ${match}-j TCPMSS $option";
}
sub dump_rule_chains() {