wip: support endorsed flag on hook

Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>

Author: vincenzopalazzo

lightningd/pay.c

@@ -16,6 +16,7 @@
 #include <lightningd/notification.h>
 #include <lightningd/pay.h>
 #include <lightningd/peer_control.h>
+#include <stdbool.h>
 #include <wallet/invoices.h>
 
 /* Routing failure object */
@@ -778,7 +779,7 @@ static const u8 *send_onion(const tal_t *ctx, struct lightningd *ld,
 	return send_htlc_out(ctx, channel, first_hop->amount,
 			     base_expiry + first_hop->delay,
 			     final_amount, payment_hash,
-			     blinding, partid, groupid, onion, NULL, hout);
+			     blinding, partid, groupid, onion, NULL, hout, false /*endorsed*/);
 }
 
 static struct command_result *check_invoice_request_usage(struct command *cmd,

lightningd/peer_htlcs.c

@@ -605,7 +605,8 @@ const u8 *send_htlc_out(const tal_t *ctx,
 			u64 groupid,
 			const u8 *onion_routing_packet,
 			struct htlc_in *in,
-			struct htlc_out **houtp)
+			struct htlc_out **houtp,
+	                bool endorsed)
 {
 	u8 *msg;
 
@@ -646,6 +647,7 @@ const u8 *send_htlc_out(const tal_t *ctx,
 						 *houtp);
 	}
 
+	// FIXME: add the `endorsed` variable here
 	msg = towire_channeld_offer_htlc(out, amount, cltv, payment_hash,
 					onion_routing_packet, blinding);
 	subd_req(out->peer->ld, out->owner, take(msg), -1, 0, rcvd_htlc_reply,
@@ -700,7 +702,8 @@ static void forward_htlc(struct htlc_in *hin,
 			 const struct short_channel_id *forward_scid,
 			 const struct channel_id *forward_to,
 			 const u8 next_onion[TOTAL_PACKET_SIZE(ROUTING_INFO_SIZE)],
-			 const struct pubkey *next_blinding)
+			 const struct pubkey *next_blinding,
+	                 const bool endorsed)
 {
 	const u8 *failmsg;
 	struct lightningd *ld = hin->key.channel->peer->ld;
@@ -811,7 +814,7 @@ static void forward_htlc(struct htlc_in *hin,
 				outgoing_cltv_value, AMOUNT_MSAT(0),
 				&hin->payment_hash,
 				next_blinding, 0 /* partid */, 0 /* groupid */,
-				next_onion, hin, &hout);
+				next_onion, hin, &hout, endorsed);
 	if (!failmsg)
 		return;
 
@@ -1144,7 +1147,7 @@ htlc_accepted_hook_final(struct htlc_accepted_hook_payload *request STEALS)
 			     request->payload->forward_channel,
 			     request->fwd_channel_id,
 			     serialize_onionpacket(tmpctx, rs->next),
-			     request->next_blinding);
+			     request->next_blinding, false /*endorsed*/);
 	} else
 		handle_localpay(hin,
 				request->payload->amt_to_forward,
@@ -1184,6 +1187,7 @@ static bool ecdh_maybe_blinding(const struct pubkey *ephemeral_key,
 	return true;
 }
 
+// FIXME: this is the way to implement the hook
 REGISTER_PLUGIN_HOOK(htlc_accepted,
 		     htlc_accepted_hook_deserialize,
 		     htlc_accepted_hook_final,

lightningd/peer_htlcs.h

@@ -50,7 +50,8 @@ const u8 *send_htlc_out(const tal_t *ctx,
 			u64 groupid,
 			const u8 *onion_routing_packet,
 			struct htlc_in *in,
-			struct htlc_out **houtp);
+			struct htlc_out **houtp,
+	                bool endorsed);
 
 void onchain_failed_our_htlc(const struct channel *channel,
 			     const struct htlc_stub *htlc,