Function inject_onionmessage_

plugins/offers.c:142–195

}

struct command_result *
inject_onionmessage_(struct command *cmd,
		     const struct onion_message *omsg,
		     struct command_result *(*cb)(struct command *command,
						  const char *method,
						  const char *buf,
						  const jsmntok_t *result,
						  void *arg),
		     struct command_result *(*errcb)(struct command *command,
						     const char *method,
						     const char *buf,
						     const jsmntok_t *result,
						     void *arg),
		     void *arg)
{
	struct out_req *req;
	struct sphinx_path *sphinx_path;
	struct onionpacket *op;
	struct secret *path_secrets;
	size_t onion_size;

	/* Create an onion which encodes this. */
	sphinx_path = sphinx_path_new(tmpctx, NULL, 0);
	for (size_t i = 0; i < tal_count(omsg->hops); i++)
		sphinx_add_hop(sphinx_path,
			       &omsg->hops[i]->pubkey, omsg->hops[i]->raw_payload);

	/* BOLT #4:
	 * - SHOULD set `onion_message_packet` `len` to 1366 or 32834.
	 */
	if (sphinx_path_payloads_size(sphinx_path) <= ROUTING_INFO_SIZE)
		onion_size = ROUTING_INFO_SIZE;
	else
		onion_size = 32768; /* VERSION_SIZE + HMAC_SIZE + PUBKEY_SIZE == 66 */

	op = create_onionpacket(tmpctx, sphinx_path, onion_size, &path_secrets);
	if (!op) {
		/* errcb expects a JSON message. */
		const char *err;
		jsmntok_t *toks;

		err = tal_fmt(tmpctx, "{\"code\":%d,\"message\":\"Creating onion failed (tlvs too long?)\"}",
			      JSONRPC2_INVALID_PARAMS);
		toks = json_parse_simple(tmpctx, err, strlen(err));
		assert(toks);
		/* Not really an error from injectpaymentonion, but near enough */
		return errcb(cmd, "injectpaymentonion", err, toks, arg);
	}

	req = jsonrpc_request_start(cmd, "injectonionmessage", cb, errcb, arg);
	json_add_pubkey(req->js, "path_key", &omsg->first_path_key);
	json_add_hex_talarr(req->js, "message", serialize_onionpacket(tmpctx, op));
	return send_outreq(req);
}

/* Holds the details while we wait for establish_onion_path to connect */
struct onion_reply {