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#ifndef LIGHTNING_COMMON_HTLC_WIRE_H
#define LIGHTNING_COMMON_HTLC_WIRE_H
#include "config.h"
#include <bitcoin/preimage.h>
#include <ccan/short_types/short_types.h>
#include <common/amount.h>
#include <common/htlc.h>
#include <common/sphinx.h>
#include <wire/gen_onion_wire.h>
struct bitcoin_tx;
struct shachain;
/* These are how we communicate about HTLC state to the master daemon */
struct added_htlc {
u64 id;
struct amount_msat amount;
struct sha256 payment_hash;
u32 cltv_expiry;
u8 onion_routing_packet[TOTAL_PACKET_SIZE];
/* If this is non-NULL, secret is the resulting shared secret */
struct pubkey *blinding;
struct secret blinding_ss;
};
/* This is how lightningd tells us about HTLCs which already exist at startup */
struct existing_htlc {
u64 id;
enum htlc_state state;
struct amount_msat amount;
struct sha256 payment_hash;
u32 cltv_expiry;
u8 onion_routing_packet[TOTAL_PACKET_SIZE];
/* If this is non-NULL, this is blinding to send with (outgoing) HTLC */
struct pubkey *blinding;
/* If fulfilled, this is non-NULL */
struct preimage *payment_preimage;
/* If failed, this is set */
const struct failed_htlc *failed;
};
struct fulfilled_htlc {
u64 id;
struct preimage payment_preimage;
};
struct failed_htlc {
u64 id;
/* If this is non-NULL, then the onion was malformed and this is the
* SHA256 of what we got: send update_fail_malformed_htlc, using
* failcode. */
struct sha256 *sha256_of_onion;
/* WIRE_INVALID_ONION_VERSION, WIRE_INVALID_ONION_KEY or
* WIRE_INVALID_ONION_HMAC (ie. must have BADONION) */
enum onion_type badonion;
/* Otherwise, this is the onion ready to send to them. */
const struct onionreply *onion;
};
struct changed_htlc {
enum htlc_state newstate;
u64 id;
};
struct existing_htlc *new_existing_htlc(const tal_t *ctx,
u64 id,
enum htlc_state state,
struct amount_msat amount,
const struct sha256 *payment_hash,
u32 cltv_expiry,
const u8 onion_routing_packet[TOTAL_PACKET_SIZE],
const struct pubkey *blinding TAKES,
const struct preimage *preimage TAKES,
const struct failed_htlc *failed TAKES);
struct failed_htlc *failed_htlc_dup(const tal_t *ctx, const struct failed_htlc *f TAKES);
void towire_added_htlc(u8 **pptr, const struct added_htlc *added);
void towire_existing_htlc(u8 **pptr, const struct existing_htlc *existing);
void towire_fulfilled_htlc(u8 **pptr, const struct fulfilled_htlc *fulfilled);
void towire_failed_htlc(u8 **pptr, const struct failed_htlc *failed);
void towire_changed_htlc(u8 **pptr, const struct changed_htlc *changed);
void towire_htlc_state(u8 **pptr, const enum htlc_state hstate);
void towire_side(u8 **pptr, const enum side side);
void towire_shachain(u8 **pptr, const struct shachain *shachain);
void fromwire_added_htlc(const u8 **cursor, size_t *max,
struct added_htlc *added);
struct existing_htlc *fromwire_existing_htlc(const tal_t *ctx,
const u8 **cursor, size_t *max);
void fromwire_fulfilled_htlc(const u8 **cursor, size_t *max,
struct fulfilled_htlc *fulfilled);
struct failed_htlc *fromwire_failed_htlc(const tal_t *ctx, const u8 **cursor,
size_t *max);
void fromwire_changed_htlc(const u8 **cursor, size_t *max,
struct changed_htlc *changed);
enum htlc_state fromwire_htlc_state(const u8 **cursor, size_t *max);
enum side fromwire_side(const u8 **cursor, size_t *max);
void fromwire_shachain(const u8 **cursor, size_t *max,
struct shachain *shachain);
#endif /* LIGHTNING_COMMON_HTLC_WIRE_H */