diff options
Diffstat (limited to 'src/_updown/_updown.in')
| -rw-r--r-- | src/_updown/_updown.in | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/_updown/_updown.in b/src/_updown/_updown.in index c68c23d8a..532bd2437 100644 --- a/src/_updown/_updown.in +++ b/src/_updown/_updown.in @@ -50,6 +50,9 @@ # PLUTO_PROTO # is the negotiated IPsec protocol, ah|esp # +# PLUTO_IPCOMP +# is not empty if IPComp was negotiated +# # PLUTO_UNIQUEID # is the unique identifier of the associated IKE_SA # @@ -411,6 +414,14 @@ up-host:iptables) -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT # + # allow IPIP traffic because of the implicit SA created by the kernel if + # IPComp is used (for small inbound packets that are not compressed) + if [ -n "$PLUTO_IPCOMP" ] + then + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p 4 \ + -s $PLUTO_PEER -d $PLUTO_ME $IPSEC_POLICY_IN -j ACCEPT + fi + # # log IPsec host connection setup if [ $VPN_LOGGING ] then @@ -435,6 +446,13 @@ down-host:iptables) -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT # + # IPIP exception teardown + if [ -n "$PLUTO_IPCOMP" ] + then + iptables -D INPUT -i $PLUTO_INTERFACE -p 4 \ + -s $PLUTO_PEER -d $PLUTO_ME $IPSEC_POLICY_IN -j ACCEPT + fi + # # log IPsec host connection teardown if [ $VPN_LOGGING ] then @@ -474,6 +492,15 @@ up-client:iptables) -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT fi # + # allow IPIP traffic because of the implicit SA created by the kernel if + # IPComp is used (for small inbound packets that are not compressed). + # INPUT is correct here even for forwarded traffic. + if [ -n "$PLUTO_IPCOMP" ] + then + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p 4 \ + -s $PLUTO_PEER -d $PLUTO_ME $IPSEC_POLICY_IN -j ACCEPT + fi + # # log IPsec client connection setup if [ $VPN_LOGGING ] then @@ -517,6 +544,13 @@ down-client:iptables) $IPSEC_POLICY_OUT -j ACCEPT fi # + # IPIP exception teardown + if [ -n "$PLUTO_IPCOMP" ] + then + iptables -D INPUT -i $PLUTO_INTERFACE -p 4 \ + -s $PLUTO_PEER -d $PLUTO_ME $IPSEC_POLICY_IN -j ACCEPT + fi + # # log IPsec client connection teardown if [ $VPN_LOGGING ] then |