{
  "$schema": "../../schema/test-vector.schema.json",
  "name": "Control Payload - Basic",
  "spec_ref": "src/12-payload-control.md",
  "protocol_version": 0,
  "description": "Tests control payload encoding. Control packets carry raw bytes where the first byte's bit 7 indicates zero-hop-only restriction.",
  "vectors": [
    {
      "id": "ctl-001",
      "description": "Control packet with multi-hop allowed (bit 7 clear)",
      "type": "encode_decode",
      "structured": {
        "header": {
          "version": 0,
          "payload_type": "control",
          "route_type": "flood"
        },
        "path": {
          "hash_size": 1,
          "hash_count": 0,
          "hashes": []
        },
        "payload": {
          "data": "01 AABBCCDD"
        }
      },
      "binary": "2D 00 01 AABBCCDD",
      "notes": "control_byte=0x01: bit 7 clear, multi-hop allowed."
    },
    {
      "id": "ctl-002",
      "description": "Control packet with zero-hop only (bit 7 set)",
      "type": "encode_decode",
      "structured": {
        "header": {
          "version": 0,
          "payload_type": "control",
          "route_type": "direct"
        },
        "path": {
          "hash_size": 1,
          "hash_count": 0,
          "hashes": []
        },
        "payload": {
          "data": "80 AABBCCDD"
        }
      },
      "binary": "2E 00 80 AABBCCDD",
      "notes": "control_byte=0x80: bit 7 set, zero-hop only. Direct route with path_count=0 = zero-hop."
    },
    {
      "id": "ctl-003",
      "description": "Minimal control packet (1 byte)",
      "type": "encode_decode",
      "structured": {
        "header": {
          "version": 0,
          "payload_type": "control",
          "route_type": "flood"
        },
        "path": {
          "hash_size": 1,
          "hash_count": 0,
          "hashes": []
        },
        "payload": {
          "data": "00"
        }
      },
      "binary": "2D 00 00"
    },
    {
      "id": "ctl-004",
      "description": "Control packet with zero-hop restriction and data via direct routing",
      "type": "encode_decode",
      "structured": {
        "header": {
          "version": 0,
          "payload_type": "control",
          "route_type": "direct"
        },
        "path": {
          "hash_size": 1,
          "hash_count": 0,
          "hashes": []
        },
        "payload": {
          "data": "FF 0102030405"
        }
      },
      "binary": "2E 00 FF 0102030405",
      "notes": "control_byte=0xFF: bit 7 set (zero-hop), all other bits set."
    }
  ]
}