firmware/src/packages/fff/fff-babel/files/lib/functions/fff/babel
Fabian Bläse 9444aaa959 fff-babel: Make implementation runtime switchable
Some users might want to prefer one babel implementation over another
for various reasons. Having to compile the firmware from scratch can be
quite tedious in that case.

Instead, make the babel implementation switchable at runtime.

The implementation can be switched manually using the uci option
`babelimpl.impl.impl`, which currently is not upgrade-safe.

Signed-off-by: Fabian Bläse <fabian@blaese.de>
2022-03-19 14:12:04 +01:00

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implementation=$(uci -q get babelimpl.impl.impl)
[ -z "$implementation" ] && implementation=babeld
. /lib/functions/fff/babeldaemon/$implementation
babel_add_iifrules() {
[ "$#" -ne "1" ] && return 1
local name="$1"
local table='10'
local prio='31'
uci set network.${name}_rule=rule
uci set network.${name}_rule.in="$name"
uci set network.${name}_rule.lookup="$table"
uci set network.${name}_rule.priority="$prio"
uci set network.${name}_rule6=rule6
uci set network.${name}_rule6.in="$name"
uci set network.${name}_rule6.lookup="$table"
uci set network.${name}_rule6.priority="$prio"
return 0
}
babel_delete_iifrules() {
[ "$#" -ne "1" ] && return 1
local name="$1"
uci -q del network.${name}_rule
uci -q del network.${name}_rule6
return 0
}
babel_add_peeraddr() {
[ "$#" -ne "1" ] && return 1
local option="$1"
if peer_ip=$(uci -q get gateway.@gateway[0].peer_ip); then
uci add_list "$option"="$peer_ip"
elif router_ip=$(uci -q get gateway.meta.router_ip); then
# use router_ip if no peer_ip is set
ip=$router_ip
# use only first ip
ip=${ip%% *}
# remove CIDR mask
ip=${ip%%/*}
uci add_list "$option"="$ip"
elif ipaddr=$(uci -q get gateway.@client[0].ipaddr); then
# use client interface address (without subnet) if no router_ip is set
uci add_list "$option"=${ipaddr%%/*}
else
echo "WARNING: No peer_ip, router_ip or client interface ipaddr set! IPv4 routing is not possible."
return 1
fi
return 0
}
babel_add_peer6addr() {
[ "$#" -ne "1" ] && return 1
local option="$1"
if peer_ip6=$(uci -q get gateway.@gateway[0].peer_ip6); then
uci add_list "$option"="$peer_ip6"
else
return 1
fi
return 0
}
babel_reload() {
# switch implementation temporarily
case $implementation in
bird2)
/etc/init.d/babeld stop 2>/dev/null
/etc/init.d/fff-bird start
;;
babeld)
/etc/init.d/fff-bird stop 2>/dev/null
/etc/init.d/babeld start
;;
esac
# call implementation-specific reload commands
babel_reload_implementation
return 0
}
babel_apply() {
# switch implementation persistently
case $implementation in
bird2)
/etc/init.d/babeld disable
/etc/init.d/fff-bird enable
;;
babeld)
/etc/init.d/fff-bird disable
/etc/init.d/babeld enable
;;
esac
babel_apply_implementation
return 0
}