This a hook for the Kea DHCP server that allows to run an external script at various points in the processing of DHCP requests and responses.
The goal is to simplify integration with Kea: for many simple use-cases, it is overkill to have to write a full-blown Kea hook, where a simple shell script can do the job.
This hook is licensed under the Mozilla Public License version 2 (MPL2).
Integration is mostly done one-way: thanks to this hook, Kea passes information to the external script, but the script cannot easily modify Kea's behaviour.
The external script can be any kind of executable program, but often it will be a simple script (shell, Perl, Python...). Information about what Kea is doing is provided to the external script through environment variables: MAC address of the requesting DHCP client, IP address being handed out, etc.
Each time Kea encounters a hook point, it will (by default) call the script synchronously. That is, Kea will do absolutely nothing else while the script is running. Thus, it is a good idea to perform only lightweight processing in the script, and absolutely avoid blocking operations. Also, scripting languages that need to initialise a huge interpreter (such as Python or Ruby) will cause a large amount of CPU usage and a massive slowdown of Kea, because the script is run multiple times for each DHCP transaction.
If you know what you are doing, you can optionally call the script asynchronously
by setting wait to false (see below).
This hook works for both DHCPv4 and DHCPv6, on Kea 1.1 and above.
In the future, the hook will possibly feed the return code of the external script back into Kea. This would allow the external script to cancel part of Kea's normal processing (for instance, it could be possible to easily implement a flexible host blacklist this way).
Since Kea 1.9.5, a similar hook is provided by ISC: https://kea.readthedocs.io/en/latest/arm/hooks.html#run-script-support
It has similar functionalities: information is passed to the script through environment variables. However, only asynchronous execution is supported in ISC's hook, at least as of Kea 1.9.5.
Which hook to use is up to you: the ISC one will probably be better maintained when new versions of Kea come out, while this one supports synchronous execution which is safer. Also, environment variables are different between the two hooks, which can be an important factor if you need to process specific sub-options in your script.
Given the limitations exposed above, here are some example use-cases for which this hook is well-suited:
- add/remove routing entries when DHCP clients arrive or leave. This can be useful
when handing out IPv4 addressing in /32 subnets, or IPv6 Prefix Delegation
with DHCPv6-PD. An example is included in
examples/slash32_leases/; - update firewall rules to allow/refuse access to new DHCP clients;
- log information about successful leases.
For more complex use-cases, including non-trivial changes to Kea's behaviour, it may be easier to just write a Kea hook yourself.
If you have more examples of usage, feel free to contribute your Kea config and your scripts!
When delegating IPv6 prefixes with DHCPv6-PD, it is necessary to add the corresponding routes in the kernel.
This example script adds/removes static IPv6 routes whenever Kea delegates an IPv6 prefix through DHCPv6-PD or when the lease expires.
See the included README for more explanations and the source with the script and an example Kea configuration.
This example allows to lease IPv4 addresses individually (/32 subnets), by inserting routes in the kernel each time a DHCP client connects, and sending custom routes to clients using DHCP option 121. This is mostly useful to hand out public IPv4 addresses to customers.
See the included README for more explanations and the source with the script and an example Kea configuration.
To experiment, a simple debug script is provided: examples/debug.sh. It
simply prints the name of the hook point and all environment variables
passed to it.
The output of the script is at /tmp/kea-hook-runscript-debug.log. A nice way to debug
is to continously display the content of this file:
tail -F /tmp/kea-hook-runscript-debug.log
Since version 1.4.0, we have a CI system to build the hook on various OS and for various versions of Kea. It's new, so there might be bugs.
The binaries are available from the release page or you can directly browse through the pipeline results.
If you want to build the hook yourself, you need the Kea libraries as well as the Kea and Boost development headers.
If you use a Kea package, you need the appropriate development packages:
- boost development files:
libboost-devor equivalent - kea development files:
isc-kea-devfrom cloudsmith (official Kea package)
If you prefer using the Kea package from Debian, install kea-dev instead.
However, it is currently unsupported and is only available in sid.
Then, to build the hook, simply run:
$ make -j4
To build against a local Kea source tree, assumed to be in ~/kea:
- build Kea (
cd ~/kea && make -j) - install Kea to a local directory (
cd ~/kea && make install DESTDIR=/tmp/kea)
Then build this hook with:
$ export KEA_INCLUDE=$HOME/kea/src/lib
$ export KEA_LIB=/tmp/kea/usr/local/lib
$ make
Some notes on Kea versions:
- Kea 1.1 does not install all required headers (most notably
dhcpsrv/), so you may need to build against Kea's source tree. - Kea 1.2 is missing a header file by mistake, so depending on your
distribution, you may need to manually copy
option6_pdexclude.hfrom the Kea git repository to/usr/include/kea/dhcp/. - Kea 1.3 to 1.7 should work out-of-the-box.
- Kea 1.8 needs to run without multi-threading. Open a ticket if you need multi-threading support.
If all goes well, you should obtain a kea-hook-runscript.so file.
Then, here is how to tell Kea to use this hook, for DHCPv4:
{
"Dhcp4":
{
"hooks-libraries": [
{
"library": "/path/to/hea-hook-runscript/kea-hook-runscript.so",
"parameters": {
"script": "/path/to/myscript.sh",
"wait": true
}
}
],
...
}
}
The wait parameter indicates whether Kea waits for the script to exit. That is,
if set to true, Kea will block while the script is running.
If you need high-performance DHCP, you can set it to false, but you must be prepared
to handle several instances of the script running in parallel.
You can use the same script for both DHCPv4 and DHCPv6, or use two different scripts.
The script will receive the name of the hook point as first argument, and all relevant information available at the current hook point will be passed as environment variables, documented below.
To debug, see the examples/debug.sh script described above.
Refer to the Kea documentation for more information about each hook point:
- DHCPv4 hooks reference: https://jenkins.isc.org/job/Kea_doc/doxygen/de/df3/dhcpv4Hooks.html
- DHCPv6 hooks reference: https://jenkins.isc.org/job/Kea_doc/doxygen/d1/d02/dhcpv6Hooks.html
The script is run with the same user as Kea: if this is not root, then the script will not have permission to change the routing table.
Either run Kea as root, or use a passwordless sudo configuration, see issue 24.
Here are all possible variables for DHCPv4, with their type, description
and reference of the possible values. Booleans are simply expressed with
0 and 1.
| Variable name | Type | Description | Reference |
|---|---|---|---|
KEA_QUERY4_TYPE |
string |
Type of DHCP message | dhcp/dhcp4.h |
KEA_QUERY4_INTERFACE |
string |
Interface on which query was received | |
KEA_QUERY4_IFINDEX |
int |
Index of the interface on which query was received | |
KEA_QUERY4_HWADDR |
string |
Hardware address of the client (its MAC address) | |
KEA_QUERY4_HWADDR_TYPE |
int |
Type of hardware address | dhcp/dhcp4.h |
KEA_QUERY4_HWADDR_SOURCE |
int |
How this MAC address was obtained | dhcp/hwaddr.h |
KEA_QUERY4_RELAYED |
bool |
Whether query was relayed | dhcp/pkt4.h |
KEA_QUERY4_RELAY_HOPS |
int |
Number of relay agents traversed | |
KEA_QUERY4_OPTION60 |
string |
Option 60 - vendor id | |
KEA_QUERY4_CIADDR |
string |
Client IP address | dhcp/pkt4.h |
KEA_QUERY4_SIADDR |
string |
Server IP address | dhcp/pkt4.h |
KEA_QUERY4_YIADDR |
string |
Your IP address | dhcp/pkt4.h |
KEA_QUERY4_GIADDR |
string |
Gateway IP address (inserted by DHCP relay) | dhcp/pkt4.h |
KEA_QUERY4_RAI |
string |
Relay Agent Information (RFC 3046) as hex string | |
KEA_QUERY4_RAI_CIRCUIT_ID |
string |
RAI sub-option 1 Circuit id (RFC 3046) as hex string | |
KEA_QUERY4_RAI_REMOTE_ID |
string |
RAI sub-option 2 Remote id (RFC 3046) as hex string | |
KEA_RESPONSE4_TYPE |
string |
Type of DHCP message | dhcp/dhcp4.h |
KEA_RESPONSE4_INTERFACE |
string |
Interface on which response is being sent | |
KEA_RESPONSE4_IFINDEX |
int |
Index of the interface on which response is being sent | |
KEA_RESPONSE4_HWADDR |
string |
Hardware address of the client (its MAC address) | |
KEA_RESPONSE4_HWADDR_TYPE |
int |
Type of hardware address | dhcp/dhcp4.h |
KEA_RESPONSE4_HWADDR_SOURCE |
int |
How this MAC address was obtained | dhcp/hwaddr.h |
KEA_RESPONSE4_RELAYED |
bool |
Whether response is relayed | dhcp/pkt4.h |
KEA_RESPONSE4_RELAY_HOPS |
int |
Number of relay agents traversed | |
KEA_RESPONSE4_CIADDR |
string |
Client IP address | dhcp/pkt4.h |
KEA_RESPONSE4_SIADDR |
string |
Server IP address | dhcp/pkt4.h |
KEA_RESPONSE4_YIADDR |
string |
Your IP address | dhcp/pkt4.h |
KEA_RESPONSE4_GIADDR |
string |
Gateway IP address | dhcp/pkt4.h |
KEA_SUBNET4_PREFIX |
IPv4 |
IP prefix of the subnet (without prefix length) | |
KEA_SUBNET4_PREFIXLEN |
int |
Prefix length of the subnet (0 to 32) |
|
KEA_SUBNET4 |
string |
KEA_SUBNET4_PREFIX/KEA_SUBNET4_PREFIXLEN |
|
KEA_LEASE4_ADDRESS |
IPv4 |
IPv4 address leased to client | |
KEA_LEASE4_TYPE |
string |
Type of lease, always equal to "V4" | |
KEA_LEASE4_HWADDR |
string |
Hardware address of the client | |
KEA_LEASE4_HOSTNAME |
string |
Hostname associated to the client | |
KEA_LEASE4_STATE |
string |
Current state of the lease | dhcpsrv/lease.h |
KEA_LEASE4_IS_EXPIRED |
bool |
Whether the lease is expired | |
KEA_LEASE4_CLIENT_LAST_TRANSMISSION |
int |
Unix timestamp of the last message received from the client | dhcpsrv/lease.h |
KEA_LEASE4_VALID_LIFETIME |
int |
Valid lifetime of the lease, in seconds | dhcpsrv/lease.h |
KEA_REMOVE_LEASE |
bool |
Whether the lease should be removed from the lease database | DHCPv4 hook API |
KEA_FAKE_ALLOCATION |
bool |
Whether the query is a DISCOVER or a REQUEST | DHCPv4 hook API |
For each Kea hook point, here are all variables usable in the external script.
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_OPTION60KEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_ID
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_OPTION60KEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_RESPONSE4_TYPEKEA_RESPONSE4_INTERFACEKEA_RESPONSE4_IFINDEXKEA_RESPONSE4_HWADDRKEA_RESPONSE4_HWADDR_SOURCEKEA_RESPONSE4_HWADDR_TYPEKEA_RESPONSE4_RELAYEDKEA_RESPONSE4_RELAY_HOPSKEA_RESPONSE4_CIADDRKEA_RESPONSE4_SIADDRKEA_RESPONSE4_YIADDRKEA_RESPONSE4_GIADDR
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_SUBNET4_PREFIXKEA_SUBNET4_PREFIXLENKEA_SUBNET4
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_SUBNET4_PREFIXKEA_SUBNET4_PREFIXLENKEA_SUBNET4KEA_FAKE_ALLOCATIONKEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIME
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_SUBNET4_PREFIXKEA_SUBNET4_PREFIXLENKEA_SUBNET4KEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIME
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIME
KEA_QUERY4_TYPEKEA_QUERY4_INTERFACEKEA_QUERY4_IFINDEXKEA_QUERY4_HWADDRKEA_QUERY4_HWADDR_SOURCEKEA_QUERY4_HWADDR_TYPEKEA_QUERY4_RELAYEDKEA_QUERY4_RELAY_HOPSKEA_QUERY4_CIADDRKEA_QUERY4_SIADDRKEA_QUERY4_YIADDRKEA_QUERY4_GIADDRKEA_QUERY4_RAIKEA_QUERY4_RAI_CIRCUIT_IDKEA_QUERY4_RAI_REMOTE_IDKEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIME
KEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIMEKEA_REMOVE_LEASE
KEA_LEASE4_ADDRESSKEA_LEASE4_TYPEKEA_LEASE4_STATEKEA_LEASE4_IS_EXPIREDKEA_LEASE4_HWADDRKEA_LEASE4_HOSTNAMEKEA_LEASE4_CLIENT_LAST_TRANSMISSIONKEA_LEASE4_VALID_LIFETIME
Here are all possible variables for DHCPv6, with their type, description
and reference of the possible values. Booleans are simply expressed with
0 and 1.
| Variable name | Type | Description | Reference |
|---|---|---|---|
KEA_QUERY6_TYPE |
string |
Type of DHCPv6 message | dhcp/dhcp6.h |
KEA_QUERY6_INTERFACE |
string |
Interface on which query was received | |
KEA_QUERY6_IFINDEX |
int |
Index of the interface on which query was received | |
KEA_QUERY6_DUID |
string |
TODO | |
KEA_QUERY6_HWADDR |
string |
Hardware address of the client (its MAC address) | |
KEA_QUERY6_HWADDR_TYPE |
int |
Type of hardware address | dhcp/dhcp4.h |
KEA_QUERY6_HWADDR_SOURCE |
int |
How this MAC address was obtained | dhcp/hwaddr.h |
KEA_QUERY6_LOCAL_ADDRESS |
string |
Local IPv6 address on which the query was received (link-local or multicast) | dhcp/pkt.h |
KEA_QUERY6_LOCAL_PORT |
int |
Local UDP or TCP port | |
KEA_QUERY6_REMOTE_ADDRESS |
string |
Remote IPv6 address, from which the query was received (link-local) | dhcp/pkt.h |
KEA_QUERY6_REMOTE_PORT |
int |
Remote UDP or TCP port | |
KEA_QUERY6_LABEL |
string |
Unique identifier of the query, to be used e.g. in log messages | dhcp/pkt.h |
KEA_QUERY6_TRANSACTION_ID |
int |
Transaction ID of the query | dhcp/pkt.h |
KEA_RESPONSE6_TYPE |
string |
Type of DHCPv6 message | dhcp/dhcp6.h |
KEA_RESPONSE6_INTERFACE |
string |
Interface on which response is being sent | |
KEA_RESPONSE6_IFINDEX |
int |
Index of the interface on which response is being sent | |
KEA_RESPONSE6_DUID |
string |
TODO | |
KEA_RESPONSE6_HWADDR |
string |
Hardware address of the client (its MAC address) | |
KEA_RESPONSE6_HWADDR_TYPE |
int |
Type of hardware address | dhcp/dhcp4.h |
KEA_RESPONSE6_HWADDR_SOURCE |
int |
How this MAC address was obtained | dhcp/hwaddr.h |
KEA_RESPONSE6_LOCAL_ADDRESS |
string |
Local IPv6 address, from which the response is being sent (link-local or multicast) | dhcp/pkt.h |
KEA_RESPONSE6_LOCAL_PORT |
int |
Local UDP or TCP port | |
KEA_RESPONSE6_REMOTE_ADDRESS |
string |
Remote IPv6 address, to which the response is being sent (link-local) | dhcp/pkt.h |
KEA_RESPONSE6_REMOTE_PORT |
int |
Remote UDP or TCP port | |
KEA_RESPONSE6_LABEL |
string |
Unique identifier of the response, to be used e.g. in log messages | dhcp/pkt.h |
KEA_RESPONSE6_TRANSACTION_ID |
int |
Transaction ID of the response | dhcp/pkt.h |
KEA_SUBNET6_PREFIX |
IPv6 |
IP prefix of the subnet (without prefix length) | |
KEA_SUBNET6_PREFIXLEN |
int |
Prefix length of the subnet (0 to 128) |
|
KEA_SUBNET6 |
string |
KEA_SUBNET6_PREFIX/KEA_SUBNET6_PREFIXLEN |
|
KEA_LEASE6_TYPE |
string |
Type of lease, either "NA", "TA", or "PD" | dhcp/lease.h |
KEA_LEASE6_ADDRESS |
IPv6 |
IPv6 address leased to client | |
KEA_LEASE6_DELEGATED_PREFIX |
string |
For TYPE="PD", prefix delegated to client (in prefix/prefixlen form) |
|
KEA_LEASE6_DELEGATED_PREFIXLEN |
int |
For TYPE="PD", length of the prefix delegated to client | |
KEA_LEASE6_CLIENT_DUID |
string |
DUID of the client | |
KEA_LEASE6_HWADDR |
string |
Hardware address of the client | |
KEA_LEASE6_HOSTNAME |
string |
Hostname associated to the client | |
KEA_LEASE6_STATE |
string |
Current state of the lease | dhcpsrv/lease.h |
KEA_LEASE6_IS_EXPIRED |
bool |
Whether the lease is expired | |
KEA_LEASE6_CLIENT_LAST_TRANSMISSION |
int |
Unix timestamp of the last message received from the client | dhcpsrv/lease.h |
KEA_LEASE6_VALID_LIFETIME |
int |
Valid lifetime of the lease, in seconds | dhcpsrv/lease.h |
KEA_LEASE6_PREFERRED_LIFETIME |
int |
Preferred lifetime of the lease, in seconds | dhcpsrv/lease.h |
KEA_LEASE6_IAID |
string |
Identity Association Identifier, to differentiate between IA containers | dhcpsrv/lease.h |
KEA_REMOVE_LEASE |
bool |
Whether the lease should be removed from the lease database | DHCPv6 hook API |
KEA_FAKE_ALLOCATION |
bool |
Whether the query is a SOLICIT or a REQUEST | DHCPv6 hook API |
For each Kea hook point, here are all variables usable in the external script.
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_ID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_RESPONSE6_TYPEKEA_RESPONSE6_INTERFACEKEA_RESPONSE6_IFINDEXKEA_RESPONSE6_DUIDKEA_RESPONSE6_HWADDRKEA_RESPONSE6_HWADDR_TYPEKEA_RESPONSE6_HWADDR_SOURCEKEA_RESPONSE6_LOCAL_ADDRESSKEA_RESPONSE6_LOCAL_PORTKEA_RESPONSE6_REMOTE_ADDRESSKEA_RESPONSE6_REMOTE_PORTKEA_RESPONSE6_LABELKEA_RESPONSE6_TRANSACTION_ID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_SUBNET6_PREFIXKEA_SUBNET6_PREFIXLENKEA_SUBNET6
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_SUBNET6_PREFIXKEA_SUBNET6_PREFIXLENKEA_SUBNET6KEA_FAKE_ALLOCATIONKEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
KEA_QUERY6_TYPEKEA_QUERY6_INTERFACEKEA_QUERY6_IFINDEXKEA_QUERY6_DUIDKEA_QUERY6_HWADDRKEA_QUERY6_HWADDR_TYPEKEA_QUERY6_HWADDR_SOURCEKEA_QUERY6_LOCAL_ADDRESSKEA_QUERY6_LOCAL_PORTKEA_QUERY6_REMOTE_ADDRESSKEA_QUERY6_REMOTE_PORTKEA_QUERY6_LABELKEA_QUERY6_TRANSACTION_IDKEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
KEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAIDKEA_REMOVE_LEASE
KEA_LEASE6_TYPEKEA_LEASE6_ADDRESSKEA_LEASE6_DELEGATED_PREFIXKEA_LEASE6_DELEGATED_PREFIXLENKEA_LEASE6_CLIENT_DUIDKEA_LEASE6_HWADDRKEA_LEASE6_HOSTNAMEKEA_LEASE6_STATEKEA_LEASE6_IS_EXPIREDKEA_LEASE6_CLIENT_LAST_TRANSMISSIONKEA_LEASE6_VALID_LIFETIMEKEA_LEASE6_PREFERRED_LIFETIMEKEA_LEASE6_IAID
- take stdout/stderr of script and turn it into proper Kea logs
- agree on a consistent terminology:
- should a "prefix" variable contain the prefixlen (2001:db8::/48) or just the base address (2001:db8::)?
- also call the script at load/unload
- figure out how to call several scripts (loading the hook multiple times doesn't seem to work)
- allow to configure which hook points will trigger the script
- take into account the return code of the script to set the status of the callout (this should be configurable to avoid surprises...).
Some bugs to investigate/fix in Kea:
lease6_selectis called twice (once withIA_NAand once withIA_PD), but other functions (lease6_renew,lease6_release,lease6_expire) are only called withIA_PD.- when an address reservation is changed for a given client,
lease6_expireis never called for the old address.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent