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Fix NULL_ROUTE_RFC1918=Yes

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This commit is contained in:
Tom Eastep 2010-11-09 15:20:23 -08:00
parent 8a9aaff4e8
commit 0602b619bd
3 changed files with 11 additions and 2 deletions
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6
Shorewall/Perl/Shorewall/Providers.pm
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@ -648,8 +648,10 @@ sub add_an_rtrule( ) {
sub setup_null_routing() { sub setup_null_routing() {
save_progress_message "Null Routing the RFC 1918 subnets"; save_progress_message "Null Routing the RFC 1918 subnets";
for ( rfc1918_networks ) { for ( rfc1918_networks ) {
emit( qq(run_ip route replace unreachable $_) ); emit( qq(if ! \$IP -4 route ls | grep -q '^$_.* dev '; then),
emit( qq(echo "qt \$IP -$family route del unreachable $_" >> \${VARDIR}/undo_routing) ); qq( run_ip route replace unreachable $_),
qq( echo "qt \$IP -4 route del unreachable $_" >> \${VARDIR}/undo_routing),
qq(fi\n) );
} }
} }

2
Shorewall/changelog.txt
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@ -4,6 +4,8 @@ Changes in Shorewall 4.4.15
2) Modernize handling of the params file. 2) Modernize handling of the params file.
3) Fix NULL_ROUTE_RFC1918
Changes in Shorewall 4.4.14 Changes in Shorewall 4.4.14
1) Support ipset lists. 1) Support ipset lists.

5
Shorewall/releasenotes.txt
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@ -17,6 +17,11 @@ VI. PROBLEMS CORRECTED AND NEW FEATURES IN PRIOR RELEASES
1) If the variable VERBOSE was exported with a non-zero value then 1) If the variable VERBOSE was exported with a non-zero value then
startup would fail. startup would fail.
2) If a route exists for an entire RFC1918 network (10.0.0.0/24,
172.20.0.0/12 or 192.168.0.0/16) then setting
NULL_ROUTE_RFC1918=Yes would cause the route to replace with a
'unreachable' one.
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