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batman executor: Generalize option handling.

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Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>
This commit is contained in:
Maximilian Wilhelm 2020-10-04 20:05:42 +02:00
parent 332ea7c7d3
commit 27a7201b45
1 changed files with 36 additions and 29 deletions
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57
executor-scripts/linux/batman
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@ -6,17 +6,7 @@
# This executor is responsible for setting up the main B.A.T.M.A.N. adv. interface (eg. bat0)
# as well as managing settings of the underlying interfaces (hardifs).
#
# Known options for the main interface are:
# IF_BATMAN_IFACES Space separated list of interfaces to be part of this B.A.T.M.A.N. adv. instance
# IF_BATMAN_IFACES_IGNORE_REGEX Interfaces to ignore when verifying configuration (regexp)
# IF_BATMAN_DISTRIBUTED_ARP_TABLE 'enable' or 'disable' DAT of this B.A.T.M.A.N. adv. instance
# IF_BATMAN_MULTICAST_MODE 'enable' or 'disable' the multicast mode of this B.A.T.M.A.N. adv. instance
# IF_BATMAN_GW_MODE Set the gateway mode of this B.A.T.M.A.N. adv. instance
# IF_BATMAN_HOP_PENALTY Set the hop penalty of this B.A.T.M.A.N. adv. instance
# IF_BATMAN_ROUTING_ALGO Set the B.A.T.M.A.N. adv. routing algorithm (BATMAN_IV, BATMAN_V)
#
# Known options for underlying interfaces are:
# IF_BATMAN_HOP_PENALTY Set the hop penalty of this B.A.T.M.A.N. adv. underlay interface
# See interfaces-batman(5) for a list of supported options for hardifs as well as meshifs.
#
set -e
@ -24,12 +14,10 @@ if [ "$VERBOSE" ]; then
set -x
fi
if [ "${IF_BATMAN_IFACES}" -o "${IF_BATMAN_IFACE_PENALTY}" ]; then
if ! which batctl >/dev/null 2>&1; then
echo "Error: batctl utility not found!" >&2
exit 1
fi
fi
#
# Compatiblity glue: Newer versions of batctl print a deprecation
@ -48,11 +36,23 @@ batctl_if () {
done
}
set_batman_params () {
[ "${IF_BATMAN_DISTRIBUTED_ARP_TABLE}" ] && ${MOCK} batctl "${mesh_if_param}" "${IFACE}" distributed_arp_table "${IF_BATMAN_DISTRIBUTED_ARP_TABLE}"
[ "${IF_BATMAN_MULTICAST_MODE}" ] && ${MOCK} batctl "${mesh_if_param}" "${IFACE}" multicast_mode "${IF_BATMAN_MULTICAST_MODE}"
[ "${IF_BATMAN_HOP_PENALTY}" ] && ${MOCK} batctl "${mesh_if_param}" "${IFACE}" hop_penalty "${IF_BATMAN_HOP_PENALTY}"
[ "${IF_BATMAN_GW_MODE}" ] && ${MOCK} batctl "${mesh_if_param}" "${IFACE}" gw_mode "${IF_BATMAN_GW_MODE}"
set_meshif_options () {
# We only care for options of format IF_BATMAN_<OPTION_NAME>
env | grep '^IF_BATMAN_[A-Z0-9_]\+' | while IFS="=" read opt value; do
# Members, ignore-regex, routing-algo, and throughput_override are handled seperately
if [ "${opt}" = "IF_BATMAN_IFACES" -o \
"${opt}" = "IF_BATMAN_IFACES_IGNORE_REGEX" -o \
"${opt}" = "IF_BATMAN_ROUTING_ALGO" -o \
"${opt}" = "IF_BATMAN_THROUGHPUT_OVERRIDE" ]; then
continue
fi
# Convert options for the actual name
real_opt=$(echo "${opt}" | sed -e 's/^IF_BATMAN_\([A-Z0-9_]\+\)/\1/' | tr '[A-Z]' '[a-z]')
${MOCK} batctl "${mesh_if_param}" "${IFACE}" "${real_opt}" "${value}"
done
}
set_routing_algo () {
@ -64,10 +64,17 @@ set_routing_algo () {
batctl ra "${IF_BATMAN_ROUTING_ALGO}"
}
#
# Functions to manage B.A.T.M.A.N. adv. underlying interfaces
set_iface_penalty () {
# Functions to manage B.A.T.M.A.N. adv. underlay interfaces (hardifs)
set_hardif_options () {
if [ "${IF_BATMAN_HOP_PENALTY}" ]; then
${MOCK} batctl hardif "${IFACE}" hop_penalty "${IF_BATMAN_HOP_PENALTY}"
fi
if [ "${IF_BATMAN_THROUGHPUT_OVERRIDE}" ]; then
${MOCK} batctl hardif "${IFACE}" throughput_override "${IF_BATMAN_THROUGHPUT_OVERRIDE}"
fi
}
@ -92,14 +99,14 @@ case "${PHASE}" in
;;
pre-up)
# Main B.A.T.M.A.N. adv. interface
# Main B.A.T.M.A.N. adv. interface (meshif)
if [ "${IF_BATMAN_IFACES}" ]; then
batctl_if add
set_batman_params
set_meshif_options
# B.A.T.M.A.N. adv. underlying interface
elif [ "${IF_BATMAN_HOP_PENALTY}" ]; then
set_iface_penalty
# B.A.T.M.A.N. adv. underlay interface (hardif)
elif [ "${IF_BATMAN_HOP_PENALTY}" -o "${IF_BATMAN_THROUGHPUT_OVERRIDE}" ]; then
set_hardif_options
fi
;;