core-lightning/lightningd/peer_htlcs.h
Rusty Russell bbc7a79542 lightningd: always use an onionreply for locally generated incoming HTLC errors (unless BADONION).
This cleans up the "local failure" callers for incoming HTLCs to hand
an onionreply instead of making us generate it from the code inside
make_failmsg.

(The db path still needs make_failmsg, so that's next).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-deprecated: Plugins: htlc_accepted_hook "failure_code" only handles simple cases now, use "failure_message".
2020-02-25 11:12:12 +10:30

88 lines
3.0 KiB
C

/* All about the HTLCs/commitment transactions for a particular peer. */
#ifndef LIGHTNING_LIGHTNINGD_PEER_HTLCS_H
#define LIGHTNING_LIGHTNINGD_PEER_HTLCS_H
#include "config.h"
#include <ccan/short_types/short_types.h>
#include <common/channel_config.h>
#include <common/derive_basepoints.h>
#include <common/htlc_wire.h>
struct channel;
struct htlc_in;
struct htlc_in_map;
struct htlc_out;
struct htlc_out_map;
struct htlc_stub;
struct lightningd;
struct forwarding;
struct json_stream;
/* FIXME: Define serialization primitive for this? */
struct channel_info {
struct channel_config their_config;
struct pubkey remote_fundingkey;
struct basepoints theirbase;
/* The old_remote_per_commit is for the locked-in remote commit_tx,
* and the remote_per_commit is for the commit_tx we're modifying now. */
struct pubkey remote_per_commit, old_remote_per_commit;
struct fee_states *fee_states;
};
/* Get all HTLCs for a peer, to send in init message. */
void peer_htlcs(const tal_t *ctx,
const struct channel *channel,
struct added_htlc **htlcs,
enum htlc_state **htlc_states,
struct fulfilled_htlc **fulfilled_htlcs,
enum side **fulfilled_sides,
const struct failed_htlc ***failed_in,
u64 **failed_out);
void free_htlcs(struct lightningd *ld, const struct channel *channel);
void peer_sending_commitsig(struct channel *channel, const u8 *msg);
void peer_got_commitsig(struct channel *channel, const u8 *msg);
void peer_got_revoke(struct channel *channel, const u8 *msg);
void update_per_commit_point(struct channel *channel,
const struct pubkey *per_commitment_point);
/* Returns NULL on success, otherwise failmsg */
const u8 *send_htlc_out(const tal_t *ctx,
struct channel *out,
struct amount_msat amount, u32 cltv,
const struct sha256 *payment_hash,
u64 partid,
const u8 *onion_routing_packet,
struct htlc_in *in,
struct htlc_out **houtp);
void onchain_failed_our_htlc(const struct channel *channel,
const struct htlc_stub *htlc,
const char *why);
void onchain_fulfilled_htlc(struct channel *channel,
const struct preimage *preimage);
void htlcs_notify_new_block(struct lightningd *ld, u32 height);
/* Only defined if COMPAT_V061 */
void fixup_htlcs_out(struct lightningd *ld);
void htlcs_resubmit(struct lightningd *ld,
struct htlc_in_map *unconnected_htlcs_in);
/* For HTLCs which terminate here, invoice payment calls one of these. */
void fulfill_htlc(struct htlc_in *hin, const struct preimage *preimage);
void local_fail_in_htlc(struct htlc_in *hin, const u8 *failmsg TAKES);
/* This json process will be used as the serialize method for
* forward_event_notification_gen and be used in
* `listforwardings_add_forwardings()`. */
void json_format_forwarding_object(struct json_stream *response, const char *fieldname,
const struct forwarding *cur);
/* Helper to create (common) WIRE_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS */
const u8 *failmsg_incorrect_or_unknown(const tal_t *ctx,
const struct htlc_in *hin);
#endif /* LIGHTNING_LIGHTNINGD_PEER_HTLCS_H */