Function routing_add_node_announcement

gossipd/routing.c:1641–1818

}

bool routing_add_node_announcement(struct routing_state *rstate,
				   const u8 *msg TAKES,
				   u32 index,
				   struct peer *peer,
				   bool *was_unknown,
				   bool force_spam_flag)
{
	struct node *node;
	secp256k1_ecdsa_signature signature;
	u32 timestamp;
	struct node_id node_id;
	u8 rgb_color[3];
	u8 alias[32];
	u8 *features, *addresses;
	struct tlv_node_ann_tlvs *na_tlv;
	bool spam;

	if (was_unknown)
		*was_unknown = false;

	/* Make sure we own msg, even if we don't save it. */
	if (taken(msg))
		tal_steal(tmpctx, msg);

	/* Note: validity of node_id is already checked. */
	if (!fromwire_node_announcement(tmpctx, msg,
					&signature, &features, &timestamp,
					&node_id, rgb_color, alias,
					&addresses,
					&na_tlv)) {
		return false;
	}

	node = get_node(rstate, &node_id);

	if (node == NULL || !node_has_broadcastable_channels(node)) {
		struct pending_node_announce *pna;
		/* BOLT #7:
		 *
		 * - if `node_id` is NOT previously known from a
		 *   `channel_announcement` message, OR if `timestamp` is NOT
		 *   greater than the last-received `node_announcement` from
		 *   this `node_id`:
		 *    - SHOULD ignore the message.
		 */
		/* Check if we are currently verifying the txout for a
		 * matching channel */
		pna = pending_node_map_get(rstate->pending_node_map,
					   &node_id);
		if (!pna) {
			if (was_unknown)
				*was_unknown = true;
			bad_gossip_order(msg, peer,
					 type_to_string(tmpctx, struct node_id,
							&node_id));
			return false;
		} else if (timestamp <= pna->timestamp)
			/* Ignore old ones: they're OK (unless from store). */