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ed839bfda0
Instead of making it ourselves, lightningd does it. Now we only have two cases of failed htlcs: completely malformed (BADONION), and with an already-wrapped onion reply to send. This makes channeld's job much simpler. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
#ifndef LIGHTNING_COMMON_HTLC_WIRE_H
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#define LIGHTNING_COMMON_HTLC_WIRE_H
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#include "config.h"
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#include <bitcoin/preimage.h>
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#include <ccan/short_types/short_types.h>
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#include <common/amount.h>
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#include <common/htlc.h>
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#include <common/sphinx.h>
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#include <wire/gen_onion_wire.h>
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struct bitcoin_tx;
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struct shachain;
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/* These are how we communicate about HTLC state to the master daemon */
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struct added_htlc {
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u64 id;
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struct amount_msat amount;
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struct sha256 payment_hash;
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u32 cltv_expiry;
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u8 onion_routing_packet[TOTAL_PACKET_SIZE];
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};
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struct fulfilled_htlc {
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u64 id;
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struct preimage payment_preimage;
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};
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struct failed_htlc {
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u64 id;
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/* If this is non-NULL, then the onion was malformed and this is the
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* SHA256 of what we got: send update_fail_malformed_htlc, using
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* failcode. */
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struct sha256 *sha256_of_onion;
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/* WIRE_INVALID_ONION_VERSION, WIRE_INVALID_ONION_KEY or
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* WIRE_INVALID_ONION_HMAC (ie. must have BADONION) */
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enum onion_type badonion;
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/* Otherwise, this is the onion ready to send to them. */
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const struct onionreply *onion;
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};
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struct changed_htlc {
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enum htlc_state newstate;
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u64 id;
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};
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void towire_added_htlc(u8 **pptr, const struct added_htlc *added);
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void towire_fulfilled_htlc(u8 **pptr, const struct fulfilled_htlc *fulfilled);
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void towire_failed_htlc(u8 **pptr, const struct failed_htlc *failed);
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void towire_changed_htlc(u8 **pptr, const struct changed_htlc *changed);
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void towire_htlc_state(u8 **pptr, const enum htlc_state hstate);
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void towire_side(u8 **pptr, const enum side side);
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void towire_shachain(u8 **pptr, const struct shachain *shachain);
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void fromwire_added_htlc(const u8 **cursor, size_t *max,
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struct added_htlc *added);
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void fromwire_fulfilled_htlc(const u8 **cursor, size_t *max,
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struct fulfilled_htlc *fulfilled);
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struct failed_htlc *fromwire_failed_htlc(const tal_t *ctx, const u8 **cursor,
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size_t *max);
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void fromwire_changed_htlc(const u8 **cursor, size_t *max,
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struct changed_htlc *changed);
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enum htlc_state fromwire_htlc_state(const u8 **cursor, size_t *max);
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enum side fromwire_side(const u8 **cursor, size_t *max);
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void fromwire_shachain(const u8 **cursor, size_t *max,
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struct shachain *shachain);
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#endif /* LIGHTNING_COMMON_HTLC_WIRE_H */
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