forked from mirror/openwrt
ea79b5875a
b14cf98 router: log “Sending a RA on lan” at LOG_DEBUG c2810fe odhcpd: update cmake file 8c2c065 odhcpd: convert README to markdown 3b96480 odhcpd: allow the use of an alternative cfg file 7328bfe odhcpd: remove confusing #defines cdb9e5b odhcpd: improve RFC9096 § 3.5 SLAAC compliance RFC9096 § 3.5 SLAAC compliance introduces a new config option (odhcpd piofolder), which may wear out the flash under certain conditions (for example: ISPs with dynamic IPv6 prefixes which disconnect the clients every X hours). Therefore, setting "dhcp.odhcpd.piofolder" to persistent storage in the router flash is not advisable and should be set to other kinds of persistent storage such as USBs, SDs, NVMEs... In order to prevent wearing out the router flash it's set to ephemeral storage by default (tmp): uci set dhcp.odhcpd.piofolder="/tmp/odhcpd-piofolder" Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
62 lines
1.3 KiB
Bash
62 lines
1.3 KiB
Bash
#!/bin/sh
|
|
|
|
if [ -n "$(uci -q get dhcp.odhcpd)" ]; then
|
|
if [ -z "$(uci -q get dhcp.odhcpd.piofolder)" ]; then
|
|
uci set dhcp.odhcpd.piofolder=/tmp/odhcpd-piofolder
|
|
uci commit dhcp
|
|
fi
|
|
|
|
exit 0
|
|
fi
|
|
|
|
touch /etc/config/dhcp
|
|
|
|
. /usr/share/libubox/jshn.sh
|
|
|
|
json_load "$(cat /etc/board.json)"
|
|
json_select network
|
|
json_select lan
|
|
json_get_vars protocol
|
|
json_select ..
|
|
json_select ..
|
|
|
|
ODHCPDONLY=0
|
|
V4MODE=disabled
|
|
V6MODE=disabled
|
|
|
|
[ -e /usr/sbin/dnsmasq ] || ODHCPDONLY=1
|
|
|
|
case "$protocol" in
|
|
# only enable server mode on statically addressed lan ports
|
|
"static")
|
|
V4MODE=server
|
|
[ -e /proc/sys/net/ipv6 ] && V6MODE=server
|
|
;;
|
|
esac
|
|
|
|
uci get dhcp.lan 1>/dev/null 2>/dev/null || {
|
|
uci batch <<EOF
|
|
set dhcp.lan=dhcp
|
|
set dhcp.lan.interface='lan'
|
|
set dhcp.lan.start='100'
|
|
set dhcp.lan.limit='150'
|
|
set dhcp.lan.leasetime='12h'
|
|
set dhcp.lan.domain='lan'
|
|
EOF
|
|
}
|
|
|
|
uci batch <<EOF
|
|
set dhcp.odhcpd=odhcpd
|
|
set dhcp.odhcpd.maindhcp=$ODHCPDONLY
|
|
set dhcp.odhcpd.leasefile=/tmp/hosts/odhcpd
|
|
set dhcp.odhcpd.leasetrigger=/usr/sbin/odhcpd-update
|
|
set dhcp.odhcpd.loglevel=4
|
|
set dhcp.odhcpd.piofolder=/tmp/odhcpd-piofolder
|
|
set dhcp.lan.dhcpv4=$V4MODE
|
|
set dhcp.lan.dhcpv6=$V6MODE
|
|
set dhcp.lan.ra=$V6MODE
|
|
set dhcp.lan.ra_slaac=1
|
|
add_list dhcp.lan.ra_flags=managed-config
|
|
add_list dhcp.lan.ra_flags=other-config
|
|
commit dhcp
|
|
EOF
|