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decode onion errors to failure message type

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This commit is contained in:
SomberNight
2018-08-01 19:06:43 +02:00
committed by ThomasV
parent b85aea1541
commit bab9f163f7
2 changed files with 38 additions and 12 deletions
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32
electrum/lnonion.py
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@@ -297,3 +297,35 @@ def get_failure_msg_from_onion_error(decrypted_error_packet: bytes) -> OnionRout
failure_code = int.from_bytes(failure_msg[:2], byteorder='big')
failure_data = failure_msg[2:]
return OnionRoutingFailureMessage(failure_code, failure_data)
ONION_FC_BADONION = BADONION = 0x8000
ONION_FC_PERM = PERM = 0x4000
ONION_FC_NODE = NODE = 0x2000
ONION_FC_UPDATE = UPDATE = 0x1000
ONION_FAILURE_CODE_MAP = {
PERM | 1 : 'invalid_realm',
NODE | 2 : 'temporary_node_failure',
PERM | NODE | 2 : 'permanent_node_failure',
PERM | NODE | 3 : 'required_node_feature_missing',
BADONION | PERM | 4 : 'invalid_onion_version',
BADONION | PERM | 5 : 'invalid_onion_hmac',
BADONION | PERM | 6 : 'invalid_onion_key',
UPDATE | 7 : 'temporary_channel_failure',
PERM | 8 : 'permanent_channel_failure',
PERM | 9 : 'required_channel_feature_missing',
PERM | 10 : 'unknown_next_peer',
UPDATE | 11 : 'amount_below_minimum',
UPDATE | 12 : 'fee_insufficient',
UPDATE | 13 : 'incorrect_cltv_expiry',
UPDATE | 14 : 'expiry_too_soon',
PERM | 15 : 'unknown_payment_hash',
PERM | 16 : 'incorrect_payment_amount',
17 : 'final_expiry_too_soon',
18 : 'final_incorrect_cltv_expiry',
19 : 'final_incorrect_htlc_amount',
UPDATE | 20 : 'channel_disabled',
21 : 'expiry_too_far',
}
# don't use these elsewhere, the names are ambiguous without context
del BADONION; del PERM; del NODE; del UPDATE