mirror of
https://github.com/kernelkit/infix.git
synced 2026-07-31 04:53:01 +02:00
Joachim Wiberg
548e0c4881
After some discussion we agreed that this operation is the domain of confd (or dagger) and any DHCP client should not mess with the admin state of the interface it runs on. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
112 lines
2.4 KiB
Bash
Executable File
112 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# This script expects a system with resolvconf (openresolv) and iproute2
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[ -z "$1" ] && echo "Error: should be called from udhcpc6" && exit 1
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ACTION="$1"
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RESOLV_CONF="/run/resolvconf/interfaces/${interface}-ipv6.conf"
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NTPFILE="/run/chrony/dhcp-sources.d/${interface}-ipv6.sources"
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[ -n "$metric" ] || metric=5
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if [ -z "${IF_WAIT_DELAY}" ]; then
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IF_WAIT_DELAY=10
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fi
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log()
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{
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logger -I $$ -t udhcpc6 -p user.notice "${interface}: $*"
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}
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dbg()
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{
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logger -I $$ -t udhcpc6 -p user.debug "${interface}: $*"
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}
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err()
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{
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logger -I $$ -t udhcpc6 -p user.err "${interface}: $*"
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}
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clr_dhcpv6_addresses()
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{
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addrs=$(ip -j addr show dev $interface \
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| jq -c '.[0].addr_info[] | select(.family == "inet6") | select(.protocol == "dhcp")')
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for addr in $addrs; do
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ip="$(echo "$addr" | jq -r '."local"')"
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prefix="$(echo "$addr" | jq -r '."prefixlen"')"
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log "removing $ip/$prefix"
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ip addr del "$ip/$prefix" dev "$interface"
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done
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}
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log "action $ACTION"
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case "$ACTION" in
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deconfig)
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clr_dhcpv6_addresses
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# drop info from this interface
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rm -f "$RESOLV_CONF"
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rm -f "$NTPFILE"
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;;
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leasefail|nak)
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# DHCPv6 lease failed - log it
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err "DHCPv6 lease failed"
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;;
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renew|bound)
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# Add IPv6 address if provided (stateful DHCPv6)
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if [ -n "$ipv6" ]; then
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if /bin/ip addr add dev $interface $ipv6 proto dhcp; then
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log "assigned address $ipv6"
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fi
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fi
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# Handle delegated prefix (prefix delegation)
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if [ -n "$ipv6prefix" ]; then
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log "received delegated prefix $ipv6prefix"
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# Prefix delegation handling could be added here
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# For now, just log it - actual routing/distribution
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# would need additional configuration
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fi
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# drop info from this interface
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truncate -s 0 "$RESOLV_CONF"
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# DHCPv6 domain search list (option 24)
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if [ -n "$search" ]; then
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dbg "adding search $search"
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echo "search $search # $interface" >> $RESOLV_CONF
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fi
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# DHCPv6 DNS servers (option 23)
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if [ -n "$dns" ]; then
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for i in $dns ; do
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dbg "adding dns $i"
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echo "nameserver $i # $interface" >> $RESOLV_CONF
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done
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resolvconf -u
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fi
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# NTP servers (option 56)
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if [ -n "$ntpsrv" ]; then
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truncate -s 0 "$NTPFILE"
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for srv in $ntpsrv; do
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dbg "got NTP server $srv"
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echo "server $srv iburst" >> "$NTPFILE"
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done
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chronyc reload sources >/dev/null
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fi
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;;
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esac
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HOOK_DIR="$0.d"
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for hook in "${HOOK_DIR}/"*; do
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[ -f "${hook}" -a -x "${hook}" ] || continue
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"${hook}" "$ACTION"
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done
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exit 0
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