towerops/lib/towerops/snmp/arp_entry.ex
2026-01-23 08:40:57 -06:00

48 lines
1.1 KiB
Elixir

defmodule Towerops.Snmp.ArpEntry do
@moduledoc """
SNMP ARP entry schema for IP-to-MAC address mappings.
Stores ARP table entries discovered via ipNetToMediaTable (1.3.6.1.2.1.4.22).
"""
use Ecto.Schema
import Ecto.Changeset
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "snmp_arp_entries" do
field :ip_address, :string
field :mac_address, :string
field :entry_type, :string
field :if_index, :integer
field :last_seen_at, :utc_datetime
belongs_to :device, Towerops.Devices.Device
belongs_to :interface, Towerops.Snmp.Interface
timestamps(type: :utc_datetime)
end
@doc false
def changeset(arp_entry, attrs) do
arp_entry
|> cast(attrs, [
:device_id,
:interface_id,
:ip_address,
:mac_address,
:entry_type,
:if_index,
:last_seen_at
])
|> validate_required([
:device_id,
:ip_address,
:mac_address,
:last_seen_at
])
|> foreign_key_constraint(:device_id)
|> foreign_key_constraint(:interface_id)
|> unique_constraint([:device_id, :ip_address, :mac_address])
end
end