diff options
Diffstat (limited to 'roles/common/templates/etc/network/if-up.d/ipsec.j2')
| -rwxr-xr-x | roles/common/templates/etc/network/if-up.d/ipsec.j2 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/roles/common/templates/etc/network/if-up.d/ipsec.j2 b/roles/common/templates/etc/network/if-up.d/ipsec.j2 index 7dd41d4..caa5129 100755 --- a/roles/common/templates/etc/network/if-up.d/ipsec.j2 +++ b/roles/common/templates/etc/network/if-up.d/ipsec.j2 @@ -1,47 +1,47 @@ #!/bin/sh # A post-up/down hook to automatically create/delete a virtual subnet -# for IPSec (inet4 only). +# for IPsec (inet4 only). # Copyright © 2016 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 # 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. ip="$( ip -4 -o route show to default scope global \ | sed -nr '/^default via (\S+) dev (\S+).*/ {s//\2 \1/p;q}' )" [ "${ip% *}" = "$IFACE" ] || exit 0 ip="${ip##* }" vip="{{ ipsec[inventory_hostname_short] }}" vsubnet="{{ ipsec_subnet }}" case "$MODE" in start) ip address add "$vip/32" dev "$IFACE" scope global || true - # Nullroute the subnet used for IPSec to avoid data leaks + # Nullroute the subnet used for IPsec to avoid data leaks # in the absence of xfrm lookup (i.e., when there is no - # matching IPSec Security Association). + # matching IPsec Security Association). ip route replace prohibit "$vsubnet" proto static || true ip route replace table 220 to "$vsubnet" via "$ip" dev "$IFACE" proto static src "$vip" || true ;; stop) ip route del table 220 to "$vsubnet" via "$ip" dev "$IFACE" proto static src "$vip" || true ip route del prohibit "$vsubnet" proto static || true ip address del "$vip/32" dev "$IFACE" scope global || true esac |