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bb9b761dda
For incoming htlcs, we need failure details in case we need to re-xmit them. But for outgoing htlcs, lightningd is telling us it already knows they've failed, so we just need to flag them failed and don't need the details. Internally, we set the ->fail to a dummy non-NULL value; this is cleaned up next. This matters for the next patch, which moves onion handling into lightningd. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* All about the HTLCs/commitment transactions for a particular peer. */
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#ifndef LIGHTNING_LIGHTNINGD_PEER_HTLCS_H
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#define LIGHTNING_LIGHTNINGD_PEER_HTLCS_H
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#include "config.h"
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#include <ccan/short_types/short_types.h>
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#include <common/channel_config.h>
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#include <common/derive_basepoints.h>
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#include <common/htlc_wire.h>
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struct channel;
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struct htlc_in;
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struct htlc_in_map;
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struct htlc_out;
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struct htlc_out_map;
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struct htlc_stub;
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struct lightningd;
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struct forwarding;
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struct json_stream;
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/* FIXME: Define serialization primitive for this? */
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struct channel_info {
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struct channel_config their_config;
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struct pubkey remote_fundingkey;
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struct basepoints theirbase;
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/* The old_remote_per_commit is for the locked-in remote commit_tx,
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* and the remote_per_commit is for the commit_tx we're modifying now. */
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struct pubkey remote_per_commit, old_remote_per_commit;
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struct fee_states *fee_states;
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};
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/* Get all HTLCs for a peer, to send in init message. */
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void peer_htlcs(const tal_t *ctx,
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const struct channel *channel,
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struct added_htlc **htlcs,
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enum htlc_state **htlc_states,
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struct fulfilled_htlc **fulfilled_htlcs,
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enum side **fulfilled_sides,
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const struct failed_htlc ***failed_in,
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u64 **failed_out);
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void free_htlcs(struct lightningd *ld, const struct channel *channel);
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void peer_sending_commitsig(struct channel *channel, const u8 *msg);
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void peer_got_commitsig(struct channel *channel, const u8 *msg);
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void peer_got_revoke(struct channel *channel, const u8 *msg);
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void update_per_commit_point(struct channel *channel,
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const struct pubkey *per_commitment_point);
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enum onion_type send_htlc_out(struct channel *out,
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struct amount_msat amount, u32 cltv,
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const struct sha256 *payment_hash,
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u64 partid,
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const u8 *onion_routing_packet,
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struct htlc_in *in,
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struct htlc_out **houtp);
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void onchain_failed_our_htlc(const struct channel *channel,
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const struct htlc_stub *htlc,
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const char *why);
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void onchain_fulfilled_htlc(struct channel *channel,
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const struct preimage *preimage);
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void htlcs_notify_new_block(struct lightningd *ld, u32 height);
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/* Only defined if COMPAT_V061 */
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void fixup_htlcs_out(struct lightningd *ld);
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void htlcs_resubmit(struct lightningd *ld,
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struct htlc_in_map *unconnected_htlcs_in);
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/* For HTLCs which terminate here, invoice payment calls one of these. */
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void fulfill_htlc(struct htlc_in *hin, const struct preimage *preimage);
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void fail_htlc(struct htlc_in *hin, enum onion_type failcode);
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/* This json process will be used as the serialize method for
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* forward_event_notification_gen and be used in
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* `listforwardings_add_forwardings()`. */
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void json_format_forwarding_object(struct json_stream *response, const char *fieldname,
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const struct forwarding *cur);
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#endif /* LIGHTNING_LIGHTNINGD_PEER_HTLCS_H */
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