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Andrew Stone
31 lines
1.9 KiB
Markdown
31 lines
1.9 KiB
Markdown
<div class="cwikmeta">{
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"title":"REJECT",
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"related":["/protocol"]
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}</div>
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*Notifies peer that a message is invalid*
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| [compact int](/protocol/p2p/compact__int.md) N (max 12) | N bytes | 1 byte | [compact int](/protocol/p2p/compact__int.md) M (max 111) | M bytes |
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|----------------|---------|-------------|---------------|---------|
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| command length | command | error code | reason length | reason string |
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*command length* and *command* form a [vector](/protocol/p2p/vector.md) of bytes that identify the type of the problem message. These bytes (less padded nulls) match the *command* field in the protocol [message envelope](/protocol.md).
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*reason length* and *reason string* form a [vector](/protocol/p2p/vector.md) of bytes that is a string providing a human language explanation of the reason the message was rejected. This string is subject to change so client software **SHOULD NOT** use it programatically.
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*error code* provides a succinct machine-interpretable reason why the message was rejected.
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### Reject Error Codes
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| Name | Value | Response To | Description
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|-------------|-------|---------------|-----------|
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| REJECT_MALFORMED | 0x01 | any | message cannot be deserialized |
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| REJECT_INVALID | 0x10 | BLOCK, TX, FILTERSIZEXTHIN | block or transaction is invalid, or xthin filter size is too small |
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| REJECT_OBSOLETE | 0x11 | VERSION | This node no longer supports your client protocol version |
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| REJECT_DUPLICATE | 0x12 | unused | |
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| REJECT_NONSTANDARD | 0x40 | TX | Transaction is [non-standard](/standard__transactions.md), or [not final](/final__transactions.md) as per BIP68 |
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| REJECT_DUST | 0x41 | TX | Transaction has an output that is too small |
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| REJECT_INSUFFICIENTFEE | 0x42 | TX | Transaction does not pay enough to be relayed |
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| REJECT_CHECKPOINT | 0x43 | unused | |
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| REJECT_WAITING | 0x44 | TX | This transaction is [not final](/final__transactions.md) | |