base-files: add preinit ifname detection based on board.json

Make use of the existing board.d to autodetect lan ifname in a generic way.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
This commit is contained in:
Jonas Gorski 2016-07-28 22:58:59 +02:00
parent 0f1ae840c9
commit c18edcec45

View file

@ -9,6 +9,33 @@ preinit_ip_config() {
ip -4 address add $pi_ip/$pi_netmask broadcast $pi_broadcast dev $1
}
preinit_config_board() {
/bin/board_detect /tmp/board.json
[ -f "/tmp/board.json" ] || return
. /usr/share/libubox/jshn.sh
json_init
json_load "$(cat /tmp/board.json)"
json_select network
json_select "lan"
json_get_vars ifname
json_select ..
json_select ..
[ -n "$ifname" ] || return
# only use the first one
ifname=${ifname%% *}
# trim any vlan ids
ifname=${ifname%\.*}
preinit_ip_config $ifname
}
preinit_ip() {
# if the preinit interface isn't specified and ifname is set in
# preinit.arch use that interface
@ -18,6 +45,8 @@ preinit_ip() {
if [ -n "$pi_ifname" ]; then
preinit_ip_config $pi_ifname
elif [ -d "/etc/board.d/" ]; then
preinit_config_board
fi
}