diff options
Diffstat (limited to 'roles/common/files/etc')
| -rwxr-xr-x | roles/common/files/etc/network/if-up.d/ipsec | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/roles/common/files/etc/network/if-up.d/ipsec b/roles/common/files/etc/network/if-up.d/ipsec deleted file mode 100755 index 4a84112..0000000 --- a/roles/common/files/etc/network/if-up.d/ipsec +++ /dev/null @@ -1,68 +0,0 @@ -#!/bin/sh - -# A post-up/down hook to automatically create/delete a 'sec' VLAN -# device, and a dedicated, host-scoped, IP for IPSec (v4 only). -# Copyright © 2013 Guilhem Moulin <guilhem@fripost.org> -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -set -ue -PATH=/usr/sbin:/usr/bin:/sbin:/bin - -ifsec=sec0 -ipsec=172.16.0.1/32 - -# /!\ This mark much match that in /usr/local/sbin/update-firewall.sh. -secmark=0xA99 - -# Ignore the loopback interface and non inet4 families. -[ "$IFACE" != lo -a "$ADDRFAM" = inet ] || exit 0 - -# Only the device with the default, globally-scoped route, is of -# interest here. -[ "$( /bin/ip -4 route show to default scope global \ - | sed -nr '/^default via \S+ dev (\S+).*/ {s//\1/p;q}' )" \ - = \ - "$IFACE" ] || exit 0 - -case "$MODE" in - start) # Don't create $ifsec if it's already there - if ! /bin/ip -o link show | grep -qE "^[0-9]+:\s+$ifsec"; then - # Create a new VLAN $IFACE on physical device $ifsec. This is - # required otherwise charon thinks the left peer is that - # host-scoped, non-routable IP. - /bin/ip link add link "$IFACE" name "$ifsec" type vlan id 2713 - /bin/ip address add "$ipsec" dev "$ifsec" scope host - /bin/ip link set dev "$ifsec" up - fi - - # If a packet retained its mark that far, it means it has - # been SNAT'ed from $ipsec, and didn't have a xfrm - # association. Hence we nullroute it to avoid to leak data - # intented to be tunneled through IPSec. /!\ The priority - # must be >220 (which the one used by strongSwan IPSec) since - # xfrm lookup must take precedence. - /bin/ip rule add fwmark "$secmark" table 666 priority 666 || true - /bin/ip route add prohibit default table 666 || true - ;; - stop) if /bin/ip -o link show | grep -qE "^[0-9]+:\s+$ifsec"; then - # Deactivate the VLAN - /bin/ip link set dev "$ifsec" down - fi - - # Delete the 'prohibit' rule - /bin/ip rule del fwmark "$secmark" table 666 priority 666 || true - /bin/ip route flush table 666 - ;; -esac |