2021-07-20 09:00:33 +00:00
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|===
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| type | symbolic name | meaning
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2021-07-20 12:52:14 +00:00
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| PERM\|1 | invalid_realm | The `realm` byte was not understood by the processing node
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| NODE\|2 | temporary_node_failure | General temporary failure of the processing node
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| PERM\|NODE\|2 | permanent_node_failure | General permanent failure of the processing node
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| PERM\|NODE\|3 | required_node_feature_missing | The processing node has a required feature which was not in this onion
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| BADONION\|PERM\|4 | invalid_onion_version | The `version` byte was not understood by the processing node
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| BADONION\|PERM\|5 | invalid_onion_hmac | The HMAC of the onion was incorrect when it reached the processing node
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| BADONION\|PERM\|6 | invalid_onion_key | The ephemeral key was unparsable by the processing node
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| UPDATE\|7 | temporary_channel_failure | The channel from the processing node was unable to handle this HTLC,
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but may be able to handle it, or others, later
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| PERM\|8 | permanent_channel_failure | The channel from the processing node is unable to handle any HTLCs
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| PERM\|9 | required_channel_feature_missing | The channel from the processing node requires features not present in
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the onion
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| PERM\|10 | unknown_next_peer | The onion specified a `short_channel_id` which doesn't match any
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leading from the processing node
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| UPDATE\|11 | amount_below_minimum | The HTLC amount was below the `htlc_minimum_msat` of the channel from
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the processing node
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2021-07-20 09:00:33 +00:00
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| UPDATE\|12 | fee_insufficient | The fee amount was below that required by the channel from the
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2021-07-20 12:52:14 +00:00
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processing node
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| UPDATE\|13 | incorrect_cltv_expiry | The `cltv_expiry` does not comply with the `cltv_expiry_delta` required by
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the channel from the processing node
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| UPDATE\|14 | expiry_too_soon | The CLTV expiry is too close to the current block height for safe
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handling by the processing node
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| PERM\|15 | incorrect_or_unknown_payment_details | The `payment_hash` is unknown to the final node, the `payment_secret` doesn't
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match the `payment_hash`, the amount for that `payment_hash` is incorrect or
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the CLTV expiry of the htlc is too close to the current block height for safe
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handling
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| 18 | final_incorrect_cltv_expiry | The CLTV expiry in the HTLC doesn't match the value in the onion
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| 19 | final_incorrect_htlc_amount | The amount in the HTLC doesn't match the value in the onion
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| UPDATE\|20 | channel_disabled | The channel from the processing node has been disabled
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| 21 | expiry_too_far | The CLTV expiry in the HTLC is too far in the future
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| PERM\|22 | invalid_onion_payload | The decrypted onion per-hop payload was not understood by the processing node
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or is incomplete
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| 23 | mpp_timeout | The complete amount of the multi-part payment was not received within a
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reasonable time
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|===
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