kea/doc/examples/kea6/hooks.json

# This is an example configuration file for the DHCPv6 server in Kea
# illustrating the configuration of hooks libraries.  It uses a basic scenario
# of one IPv6 subnet configured with the default values for all parameters.

{"Dhcp6":

{
# Kea is told to listen on the ethX interface only.
  "interfaces-config": {
    "interfaces": [ "ethX" ]
  },

# Set up the storage for leases.
  "lease-database": {
    "type": "memfile"
  },

# Set values to mandatory timers
  "renew-timer": 900,
  "rebind-timer": 1200,
  "preferred-lifetime": 1800,
  "valid-lifetime": 2700,

# Define a single subnet.
  "subnet6": [
    {
      "pools": [
        {
          "pool": "2001:db8:1::/80",
          "user-context": { "charging": true }
        } ],
      "subnet": "2001:db8:1::/64",
      "interface": "ethX"
    }
  ],

# Set up the hooks libraries.  For this example, we assume that two libraries
# are loaded, called "security" and "charging".  Note that order is important:
# "security" is specified first so if both libraries supply a hook function
# for a given hook, the function in "security" will be called before that in
# "charging".

  "hooks-libraries": [
     {
        "library": "/opt/lib/security.so"
     },
     {
        "library": "/opt/lib/charging.so",
        "parameters": {
             "path": "/var/kea/var",
             "base-name": "kea-forensic6"
        }
     }
  ]
}

}