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916a36a9e4
This is like `sendonion` but unwraps the onion as the first hop, avoiding nasty special cases for blinded paths which start with this node, and also self-pay. Tests split into multiple ones after Christian's review. Changelog-Added: JSON-RPC: `injectpaymentonion` for initiating an HTLC like a peer would do. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
81 lines
2.8 KiB
C
81 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 <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 json_stream;
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/* Get all HTLCs for a peer, to send in init message. */
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const struct existing_htlc **peer_htlcs(const tal_t *ctx,
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const struct channel *channel);
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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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/* Returns NULL on success, otherwise failmsg*/
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const u8 *send_htlc_out(const tal_t *ctx,
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struct channel *out,
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struct amount_msat amount, u32 cltv,
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struct amount_msat final_msat,
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const struct sha256 *payment_hash,
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const struct pubkey *path_key,
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u64 partid,
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u64 groupid,
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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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bool should_exist);
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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 STEALS);
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/* Apply tweak to ephemeral key if path_key is non-NULL, then do ECDH */
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bool ecdh_maybe_blinding(const struct pubkey *ephemeral_key,
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const struct pubkey *path_key,
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struct secret *ss);
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/* Select best (highest capacity) to peer. If hint is set, must match that
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* feerate */
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struct channel *best_channel(struct lightningd *ld,
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const struct peer *next_peer,
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struct amount_msat amt_to_forward,
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const struct channel *hint);
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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 local_fail_in_htlc(struct htlc_in *hin, const u8 *failmsg TAKES);
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void local_fail_in_htlc_needs_update(struct htlc_in *hin,
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const u8 *failmsg_needs_update TAKES,
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const struct short_channel_id *failmsg_scid);
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/* Helper to create (common) WIRE_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS */
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const u8 *failmsg_incorrect_or_unknown(const tal_t *ctx,
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struct lightningd *ld,
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struct amount_msat msat);
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#endif /* LIGHTNING_LIGHTNINGD_PEER_HTLCS_H */
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