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For cheats, we do a little bit of weird accounting. First we 'update' our on-ledger balance to be the entirety of the channel's balance. Then, as outputs get resolved, we record the fees and outputs as withdrawals from this amount. It's possible that they might successfully 'cheat', in which case we record those as 'penalty' but debits (not credits).
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#ifndef LIGHTNING_ONCHAIND_ONCHAIN_TYPES_H
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#define LIGHTNING_ONCHAIND_ONCHAIN_TYPES_H
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#include "config.h"
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/* Different transactions we care about. */
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enum tx_type {
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/* The initial 2 of 2 funding transaction */
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FUNDING_TRANSACTION,
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/* A mutual close: spends funding */
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MUTUAL_CLOSE,
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/* Their unilateral: spends funding */
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THEIR_UNILATERAL,
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/* Unknown unilateral (presumably theirs): spends funding */
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UNKNOWN_UNILATERAL,
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/* Our unilateral: spends funding */
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OUR_UNILATERAL,
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/* Their old unilateral: spends funding */
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THEIR_REVOKED_UNILATERAL,
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/* The 2 different types of HTLC transaction, each way */
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THEIR_HTLC_TIMEOUT_TO_THEM,
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THEIR_HTLC_FULFILL_TO_US,
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OUR_HTLC_TIMEOUT_TO_US,
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OUR_HTLC_FULFILL_TO_THEM,
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/* Delayed variants */
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OUR_HTLC_TIMEOUT_TX,
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OUR_HTLC_SUCCESS_TX,
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/* When we spend a delayed output (after cltv_expiry) */
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OUR_DELAYED_RETURN_TO_WALLET,
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/* When they spend a delayed output we were attempting to steal */
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THEIR_DELAYED_CHEAT,
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/* When we use revocation key to take output. */
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OUR_PENALTY_TX,
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/* Amount too small, we're just spending it to close UTXO */
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IGNORING_TINY_PAYMENT,
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/* Special type for marking outputs as resolved by self. */
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SELF,
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/* Shouldn't happen. */
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UNKNOWN_TXTYPE
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};
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/* Different output types. */
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enum output_type {
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/* FUNDING_TRANSACTION */
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FUNDING_OUTPUT,
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/* THEIR_UNILATERAL */
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OUTPUT_TO_US,
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DELAYED_OUTPUT_TO_THEM,
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/* THEIR_REVOKED_UNILATERAL (they shouldn't be able to claim these) */
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DELAYED_CHEAT_OUTPUT_TO_THEM,
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/* OUR_UNILATERAL, or OUR_HTLC_TIMEOUT_TX */
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DELAYED_OUTPUT_TO_US,
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OUTPUT_TO_THEM,
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/* HTLC outputs: their offers and our offers */
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THEIR_HTLC,
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OUR_HTLC,
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/* For elements we need a fee output type */
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ELEMENTS_FEE,
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};
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#endif /* LIGHTNING_ONCHAIND_ONCHAIN_TYPES_H */
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