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Merge pull request #101 from BarbarossaTM/feature/batman-options

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Generalize B.A.T.M.A.N. .adv. option handling
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Maximilian Wilhelm 2020-10-06 20:22:19 +02:00 committed by GitHub
commit a67d518ea9
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1 changed files with 52 additions and 29 deletions
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75
executor-scripts/linux/batman
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@ -6,16 +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
#
# Known options for underlying interfaces are:
# IF_BATMAN_IFACE_PENALTY Set the hop penalty of this B.A.T.M.A.N. adv. interface
# See interfaces-batman(5) for a list of supported options for hardifs as well as meshifs.
#
set -e
@ -23,12 +14,10 @@ if [ "$VERBOSE" ]; then
set -x
fi
if [ "${IF_BATMAN_IFACES}" -o "${IF_BATMAN_IFACE_PENALTY}" ]; then
if ! which batctl >/dev/null 2>&1; then
echo "Error: batctl utility not found!" >&2
exit 1
fi
fi
#
# Compatiblity glue: Newer versions of batctl print a deprecation
@ -47,17 +36,50 @@ batctl_if () {
done
}
set_batman_params () {
[ "${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}" "${value}"
done
}
set_routing_algo () {
if [ "${IF_BATMAN_ROUTING_ALGO}" != "BATMAN_IV" -a "${IF_BATMAN_ROUTING_ALGO}" != "BATMAN_V" ]; then
echo "Invalid routing algorithm \"$1\"."
return
fi
batctl ra "${IF_BATMAN_ROUTING_ALGO}"
}
#
# Functions to manage B.A.T.M.A.N. adv. underlying interfaces
set_iface_penalty () {
${MOCK} batctl hardif "${IFACE}" hop_penalty "${IF_BATMAN_IFACE_PENALTY}"
# Functions to manage B.A.T.M.A.N. adv. underlay interfaces (hardifs)
set_hardif_options () {
# Query hardif parameter manually for now
for hardif in ${IF_BATMAN_IFACES}; do
penalty=$(ifquery -p "batman-hop-penalty" "${hardif}")
if [ "${penalty}" ]; then
${MOCK} batctl hardif "${hardif}" hop_penalty "${penalty}"
fi
throughput=$(ifquery -p "batman-throughput-override" "${hardif}")
if [ "${throughput}" ]; then
${MOCK} batctl hardif "${hardif}" throughput_override "${througput}"
fi
done
}
@ -71,6 +93,10 @@ case "${PHASE}" in
create)
# Main B.A.T.M.A.N. adv. interface
if [ "${IF_BATMAN_IFACES}" ]; then
if [ "${IF_BATMAN_ROUTING_ALGO}" ]; then
set_routing_algo
fi
if [ ! -d "/sys/class/net/${IFACE}" ]; then
batctl "${mesh_if_param}" "${IFACE}" interface create || true
fi
@ -78,14 +104,11 @@ case "${PHASE}" in
;;
pre-up)
# Main B.A.T.M.A.N. adv. interface
# Main B.A.T.M.A.N. adv. interface (meshif)
if [ "${IF_BATMAN_IFACES}" ]; then
batctl_if add
set_batman_params
# B.A.T.M.A.N. adv. underlying interface
elif [ "${IF_BATMAN_IFACE_PENALTY}" ]; then
set_iface_penalty
set_meshif_options
set_hardif_options
fi
;;