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tunnel executore: Add support for setting pmtudisc / ignore-df for tunnels.

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Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>
This commit is contained in:
Maximilian Wilhelm 2021-06-03 18:53:25 +02:00
parent 2b358fafc6
commit 73d9788fab
1 changed files with 32 additions and 2 deletions
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34
executor-scripts/linux/tunnel
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@ -2,7 +2,7 @@
# Based on alpine's tunnel configuration script.
# Copyright (c) 2017 Kaarle Ritvanen
# Copyright (c) 2020 Ariadne Conill (extended for ifupdown-ng)
# Copyright (c) 2021 Maximilian Wilhelm (make sure mode/type is 1st parameter)
# Copyright (c) 2021 Maximilian Wilhelm (make sure mode/type is 1st parameter, add more options)
[ -z "$IF_TUNNEL_LOCAL" -a -z "$IF_TUNNEL_LOCAL_DEV" ] && exit 1
[ -z "$IF_TUNNEL_REMOTE" ] && exit 1
@ -10,6 +10,13 @@
[ -n "$VERBOSE" ] && set -x
yesno() {
case "$1" in
yes|1) echo 1 ;;
*) echo 0 ;;
esac
}
# Figure out address familiy
FAMILY="4"
@ -70,6 +77,29 @@ if [ ${PHASE} = "create" -a ! "${IF_TUNNEL_LOCAL}" -a "${IF_TUNNEL_LOCAL_DEV}" ]
fi
# Handle boolean switches
MORE_PARAMS=""
if [ "${IF_TUNNEL_IGNORE_DF}" ]; then
if $(yesno "${IF_TUNNEL_IGNORE_DF}"); then
MORE_PARAMS="ignore-df"
else
MORE_PARAMS="noignore-df"
fi
unset IF_TUNNEL_IGNORE_DF
fi
if [ "${IF_TUNNEL_PMTUDISC}" ]; then
if $(yesno "${IF_TUNNEL_PMTUDISC}"); then
MORE_PARAMS="pmtudisc"
else
MORE_PARAMS="nopmtudisc"
fi
unset IF_TUNNEL_PMTUDISC
fi
# Mangle residual IF_TUNNEL_* params into single string
PARAMS=$(set | sed -E '
s/^IF_TUNNEL_([A-Z0-9_]+)=(.+)/\1\n\2/
@ -87,7 +117,7 @@ PARAMS=$(set | sed -E '
case "$PHASE" in
create)
${MOCK} eval ip -$FAMILY $OBJECT add $IFACE $TYPE_KW $TUNNEL_MODE $PARAMS
${MOCK} eval ip -$FAMILY $OBJECT add $IFACE $TYPE_KW $TUNNEL_MODE $PARAMS $MORE_PARAMS
;;
destroy)
${MOCK} ip -$FAMILY $OBJECT del $IFACE