DHCP client with client-id does not work

[troglobit]

Current Behavior

Setting up a DHCP client with client ID does not work:

1. The format of option 61 is missing the htype
2. The payload of option 61 is cut short

Example:

  "infix-dhcp-client:dhcp-client": {
    "client-if": [
      {
        "if-name": "e5",
        "client-id": "xyzzy"
      }
    ]
  },

The resulting option 61 is encoded as: [ 61 | 03 | 78 | 79 | 7a ]

Expected Behavior

The resulting option 61 is encoded as: [ 61 | 06 | 00 | 78 | 79 | 7a | 7a | 79 ]

Steps To Reproduce

No response

Additional information

No response