Function json_makesecret

lightningd/hsm_control.c:319–370

}

static struct command_result *json_makesecret(struct command *cmd,
					   const char *buffer,
					   const jsmntok_t *obj UNNEEDED,
					   const jsmntok_t *params)
{
	u8 *data;
	const char *strdata;
	struct json_stream *response;
	struct secret secret;

	if (!param_check(cmd, buffer, params,
			 p_opt("hex", param_bin_from_hex, &data),
			 p_opt("string", param_string, &strdata),
			 NULL))
		return command_param_failed();

	if (strdata) {
		if (data)
			return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
					    "Cannot have both hex and string");
		data = tal_dup_arr(cmd, u8, (u8 *)strdata, strlen(strdata), 0);
	} else {
		if (!data)
			return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
					    "Must have either hex or string");
	}

	if (memeq(data, tal_bytelen(data),
		  RUNES_SECRET_LABEL, strlen(RUNES_SECRET_LABEL)))
		return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
				    "'%s' is reserved for internal use",
				    RUNES_SECRET_LABEL);

	if (command_check_only(cmd))
		return command_check_done(cmd);

	u8 *msg = towire_hsmd_derive_secret(cmd, data);
	if (!wire_sync_write(cmd->ld->hsm_fd, take(msg)))
		return command_fail(cmd, LIGHTNINGD,
                     "Could not write to HSM: %s", strerror(errno));


	msg = wire_sync_read(tmpctx, cmd->ld->hsm_fd);
	if (!fromwire_hsmd_derive_secret_reply(msg, &secret))
		return command_fail(cmd, LIGHTNINGD,
                     "Bad reply from HSM: %s", strerror(errno));


	response = json_stream_success(cmd);
	json_add_secret(response, "secret", &secret);
	return command_success(cmd, response);
}

static const struct json_command makesecret_command = {
	"makesecret",