Function payment_add_hop_onion_payload

plugins/libplugin-pay.c:1625–1667

}

static void payment_add_hop_onion_payload(struct payment *p,
					  struct createonion_hop *dst,
					  struct route_hop *node,
					  struct route_hop *next,
					  bool final,
					  struct secret *payment_secret,
					  const u8 *payment_metadata)
{
	struct createonion_request *cr = p->createonion_request;
	u32 cltv = p->start_block + next->delay + 1;
	u64 msat = next->amount.millisatoshis; /* Raw: TLV payload generation*/
	struct tlv_field **fields;
	struct payment *root = payment_root(p);

	/* This is the information of the node processing this payload, while
	 * `next` are the instructions to include in the payload, which is
	 * basically the channel going to the next node. */
	dst->pubkey = node->node_id;

	dst->tlv_payload = tlv_tlv_payload_new(cr->hops);
	fields = &dst->tlv_payload->fields;
	tlvstream_set_tu64(fields, TLV_TLV_PAYLOAD_AMT_TO_FORWARD,
			   msat);
	tlvstream_set_tu32(fields, TLV_TLV_PAYLOAD_OUTGOING_CLTV_VALUE,
			   cltv);

	if (!final)
		tlvstream_set_short_channel_id(fields,
					       TLV_TLV_PAYLOAD_SHORT_CHANNEL_ID,
					       &next->scid);

	if (payment_secret != NULL) {
		assert(final);
		tlvstream_set_tlv_payload_data(
			fields, payment_secret,
			root->amount.millisatoshis); /* Raw: TLV payload generation*/
	}
	if (payment_metadata != NULL) {
		assert(final);
		tlvstream_set_raw(fields, TLV_TLV_PAYLOAD_PAYMENT_METADATA,
				  payment_metadata, tal_bytelen(payment_metadata));
	}
}

static void payment_compute_onion_payloads(struct payment *p)
{