ROUTING_ERROR_ENUM = {
    0: "NONE",
    1: "NO_ROUTE",
    2: "GOT_NAK",
    3: "TIMEOUT",
    4: "NO_INTERFACE", 
    5: "MAX_RETRANSMIT",
    6: "NO_CHANNEL", 
    7: "TOO_LARGE",
    8: "NO_RESPONSE",
    9: "DUTY_CYCLE_LIMIT",
    32: "BAD_REQUEST",
    33: "NOT_AUTHORIZED",
    34: "PKI_FAILED",
    35: "PKI_UNKNOWN_PUBKEY", 
    36: "ADMIN_BAD_SESSION_KEY",
    37: "ADMIN_PUBLIC_KEY_UNAUTHORIZED",
    38: "RATE_LIMIT_EXCEEDED",
    39: "PKI_SEND_FAIL_PUBLIC_KEY"
}

ROUTE_DISCOVERY_SCHEME = [
    #("repeated", "route", 1, "fixed32")
    ("repeated", "route", 1, "fixed32"),
    ("repeated", "snr_towards", 2, "int32"),
    ("repeated", "route_back", 3, "fixed32"),
    ("repeated", "snr_back", 4, "int32")
]

ROUTING_SCHEME = [
    ("oneof", "variant", [
        (ROUTE_DISCOVERY_SCHEME, "route_request", 1),
        (ROUTE_DISCOVERY_SCHEME, "route_reply", 2),
        ("int32", "error_reason", 3)
    ])
]