basename="$(basename $0)"
log DEBUG "${basename} called for interface=${interface} reason=${reason}"
+# Log all information from dhclient
+if enabled DEBUG; then
+ while read line; do
+ [[ ${line} =~ ^(cur|old|new)_ ]] || continue
+ log DEBUG " ${line}"
+ done <<< "$(printenv | sort)"
+fi
+
# Main pitchfork.
case "${reason}" in
MEDIUM)
exit 0
;;
+ # IPv6
+
+ PREINIT6)
+ if ! device_is_up "${interface}"; then
+ log WARNING "Device '${interface}' was not brought up before starting the DHCP client"
+ device_set_up "${interface}"
+ fi
+
+ # Flush all other aborted IP addresses
+ ipv6_address_flush "${interface}"
+
+ # Disable autoconf because DHCP is handling this
+ ipv6_device_autoconf_disable "${interface}"
+
+ # Enable forwarding because we are acting as a host
+ # to uplink network zones.
+ ipv6_device_forwarding_enable "${interface}" --accept-ra
+
+ # Wait until DAD for the link-local address has finished
+ for address in $(ipv6_device_get_addresses "${interface}" --scope="link"); do
+ ipv6_wait_for_dad "${address}" "${interface}" && exit ${EXIT_OK}
+ done
+
+ log ERROR "There is no active link-local address on ${interface}"
+
+ exit ${EXIT_ERROR}
+ ;;
+
+ BOUND6)
+ # We will be called twice. Once for the assigned address and once for an assigned prefix.
+
+ # Handle temporarily-assigned address
+ if isset new_ip6_address && isset new_ip6_prefixlen; then
+ ipv6_address_add "${new_ip6_address}/${new_ip6_prefixlen}" "${interface}" \
+ --valid-lifetime="${new_max_life}" --preferred-lifetime="${new_preferred_life}"
+
+ # Save configuration
+ db_set "${interface}/ipv6/local-ip-address" "${new_ip6_address}/${new_ip6_prefixlen}"
+ db_set "${interface}/ipv6/active" 1
+ #db_set "${interface}/ipv6/domain-name" "${new_
+
+ # Update the routing tables
+ routing_update "${interface}" ipv6
+
+ exit 0
+
+ # Handle Prefix Delegation
+ elif isset new_ip6_prefix; then
+ db_set "${interface}/ipv6/delegated-prefix" "${new_ip6_prefix}"
+
+ exit 0
+ fi
+ ;;
+
+ RENEW6|REBIND6)
+ # Will be called twice like BOUND6.
+
+ if isset new_ip6_address && isset new_ip6_prefixlen; then
+ # Update nameservers if those have changed
+ if [[ "${old_dhcp6_name_servers}" != "${new_dhcp6_name_servers}" ]]; then
+ db_set "${interface}/ipv6/domain-name-servers" "${new_dhcp6_name_servers}"
+ dns_server_update
+ fi
+
+ # Update the lifetime if the address has not changed
+ if [[ "${old_ip6_address}" = "${new_ip6_address}" ]]; then
+ ipv6_address_change_lifetime "${new_ip6_address}/${new_ip6_prefixlen}" "${interface}" \
+ --valid-lifetime="${new_max_life}" --preferred-lifetime="${new_preferred_life}"
+
+ exit ${EXIT_OK}
+ fi
+
+ # Remove any old IP addresses
+ if [ -n "${old_ip6_address}" ]; then
+ ipv6_address_del "${old_ip6_address}/${old_ip6_prefixlen}" "${interface}"
+ fi
+
+ # Update the database
+ db_set "${interface}/ipv6/local-ip-address" \
+ "${new_ip6_address}/${new_ip6_prefixlen}"
+
+ # Add the new one
+ ipv6_address_add "${new_ip6_address}/${new_ip6_prefixlen}" "${interface}" \
+ --valid-lifetime="${new_max_life}" --preferred-lifetime="${new_preferred_life}"
+
+ # Update the routing tables
+ routing_update "${interface}" ipv6
+
+ exit ${EXIT_OK}
+
+ # Handle Prefix Delegation
+ elif isset new_ip6_prefix || isset old_ip6_prefix; then
+ if [[ "${old_ip6_prefix}" = "${new_ip6_prefix}" ]]; then
+ # TODO What do we need to do if the prefix hasn't changed?
+ exit ${EXIT_OK}
+ fi
+
+ log DEBUG "The delegated prefix has changed from ${old_ip6_prefix} to ${new_ip6_prefix}"
+ db_set "${interface}/ipv6/delegated-prefix" "${new_ip6_prefix}"
+
+ exit ${EXIT_OK}
+ fi
+ ;;
+
+ DEPREF6)
+ # Check if all necessary information is there
+ if ! isset cur_ip6_address || ! isset cur_ip6_prefixlen; then
+ exit ${EXIT_ERROR}
+ fi
+
+ # Set lifetime to zero
+ ipv6_address_change_lifetime "${cur_ip6_address}/${cur_ip6_prefixlen}" "${interface}" \
+ --preferred-lifetime=0 || exit ${EXIT_ERROR}
+ ;;
+
+ EXPIRE6|FAIL6|RELEASE6|STOP6)
+ # Remove the currently configured addresses from the device.
+ ipv6_address_flush "${interface}"
+
+ # Reset autoconf mode and disable forwarding
+ ipv6_device_forwarding_disable "${interface}"
+ ipv6_device_autoconf_disable "${interface}"
+
+ db_delete "${interface}/ipv6"
+
+ exit 0
+ ;;
+
+ # IPv4
+
PREINIT)
# Bring up the device if it hasn't been done before.
if ! device_is_up ${interface}; then
zone_up ${interface}
fi
- # If the use configured a delay, we will honour that.
- if [ -n "${DELAY}" ]; then
- assert isinteger DELAY
- sleep ${DELAY}
-
- # If he didn't, we will try to detect is STP has brought the
- # bridge up.
- elif device_is_bridge ${interface}; then
+ # We will try to detect is STP has brought the bridge up
+ if device_is_bridge ${interface}; then
counter=60
while [ ${counter} -gt 0 ]; do
exit 0
;;
-
BOUND|RENEW|REBIND|REBOOT)
# Check if the IP address has changed. If so, delete all routes and stuff.
if [ -n "${old_ip_address}" -a "${old_ip_address}" != "${new_ip_address}" ]; then
fi
case "${reason}" in
- BOUND|REBOOT)
+ BOUND|REBIND|REBOOT)
if [ ! "${old_ip_address}" = "${new_ip_address}" ] || \
[ ! "${old_subnet_mask}" = "${new_subnet_mask}" ] || \
[ ! "${old_network_number}" = "${new_network_number}" ] || \
[ ! "${old_interface_mtu}" = "${new_interface_mtu}" ]; then
- # Calc a prefix out of address and subnet mask.
- new_prefix="$(ipv4_get_prefix ${new_ip_address} ${new_subnet_mask})"
+ # Calc the prefix from the subnet mask
+ new_prefix="$(ipv4_netmask2prefix "${new_subnet_mask}")"
# Set the new ip address.
- ip_address_add ${interface} ${new_ip_address}/${new_prefix}
- device_set_up ${interface}
-
+ ip_address_add "${interface}" "${new_ip_address}/${new_prefix}"
# A MTU of 576 is used for X.25 and dialup connections. Some broken DHCP
# servers send out an MTU of 576 bytes, which will be ignored.
fi
# Save configuration
- routing_db_set ${interface} ipv4 type "ipv4-dhcp"
- routing_db_set ${interface} ipv4 local-ip-address "${new_ip_address}/${new_prefix}"
- routing_db_set ${interface} ipv4 remote-ip-address "${new_routers}"
- routing_db_set ${interface} ipv4 active 1
- routing_db_set ${interface} ipv4 domain-name "${new_domain_name}"
- routing_db_set ${interface} ipv4 domain-name-servers "${new_domain_name_servers}"
- routing_db_set ${interface} ipv4 domain-name-servers-priority "${DNS_SERVER_DYNAMIC_PRIORITY}"
+ db_set "${interface}/ipv4/type" "ipv4-dhcp"
+ db_set "${interface}/ipv4/local-ip-address" \
+ "${new_ip_address}/${new_prefix}"
+ db_set "${interface}/ipv4/remote-ip-address" "${new_routers}"
+ db_set "${interface}/ipv4/active" 1
+ db_set "${interface}/ipv4/domain-name" "${new_domain_name}"
+ db_set "${interface}/ipv4/domain-name-servers" \
+ "${new_domain_name_servers}"
+ db_set "${interface}/ipv4/domain-name-servers-priority" \
+ "${DNS_SERVER_DYNAMIC_PRIORITY}"
# Update the routing tables.
routing_update ${interface} ipv4
routing_default_update
- # Update resolv.conf
- dns_generate_resolvconf
+ # Update DNS configuration
+ dns_server_update
fi
;;
esac
ipv4_flush_device ${interface}
fi
- routing_db_remove ${interface} ipv4
+ db_delete "${interface}/ipv4"
routing_default_update
exit 0
;;
+
+ *)
+ log ERROR "Unhandled reason: ${reason}"
+ ;;
esac
exit 1