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Correct interaction between FASTACCEPT and CLAMPMSS

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@3013 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep 2005-11-17 18:23:19 +00:00
parent f753b4ab5c
commit 0fcc67230c
3 changed files with 22 additions and 13 deletions
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2
Shorewall/changelog.txt
View File

@ -9,6 +9,8 @@ Changes in 3.0.1
4) Clarify PORTS column in blacklist file. 4) Clarify PORTS column in blacklist file.
5) Correct CLAMPMSS/FASTACCEPT interraction.
Changes in 3.0.0 Final Changes in 3.0.0 Final
None. None.

30
Shorewall/firewall
View File

@ -7636,6 +7636,19 @@ verify_ip() {
# - Determine the zones # - Determine the zones
# #
initialize_netfilter () { initialize_netfilter () {
setup_mss()
{
case $CLAMPMSS in
Yes)
option="--clamp-mss-to-pmtu"
;;
*)
option="--set-mss $CLAMPMSS"
;;
esac
run_iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS $option
}
report_capabilities report_capabilities
@ -7754,6 +7767,8 @@ initialize_netfilter () {
setpolicy INPUT DROP setpolicy INPUT DROP
setpolicy OUTPUT DROP setpolicy OUTPUT DROP
[ -n "$CLAMPMSS" ] && setup_mss
setcontinue FORWARD setcontinue FORWARD
setcontinue INPUT setcontinue INPUT
setcontinue OUTPUT setcontinue OUTPUT
@ -7765,6 +7780,8 @@ initialize_netfilter () {
deleteallchains deleteallchains
[ -n "$CLAMPMSS" ] && setup_mss
setcontinue FORWARD setcontinue FORWARD
setcontinue INPUT setcontinue INPUT
setcontinue OUTPUT setcontinue OUTPUT
@ -7807,19 +7824,6 @@ initialize_netfilter () {
run_iptables -A $chain -p udp --dport 53 -j ACCEPT run_iptables -A $chain -p udp --dport 53 -j ACCEPT
done done
if [ -n "$CLAMPMSS" ]; then
case $CLAMPMSS in
Yes)
option="--clamp-mss-to-pmtu"
;;
*)
option="--set-mss $CLAMPMSS"
;;
esac
run_iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS $option
fi
accounting_file=$(find_file accounting) accounting_file=$(find_file accounting)
[ -f $accounting_file ] && setup_accounting $accounting_file [ -f $accounting_file ] && setup_accounting $accounting_file

3
Shorewall/releasenotes.txt
View File

@ -17,6 +17,9 @@ Problems Corrected in 3.0.1
clarify that the PORTS column refers to destination port number/service clarify that the PORTS column refers to destination port number/service
names. names.
5) When CLAMPMSS is set to a value other than "No" and FASTACCEPT=Yes, the
order of the rules generated was incorrect.
New Features in 3.0.1 New Features in 3.0.1
1) To make the macro facility more flexible, Shorewall now examines the 1) To make the macro facility more flexible, Shorewall now examines the