Function json_plugin_control

lightningd/plugin_control.c:209–308

* A plugin command which permits to control plugins without restarting * lightningd. It takes a subcommand, and an optional subcommand parameter. */

 * lightningd. It takes a subcommand, and an optional subcommand parameter.
 */
static struct command_result *json_plugin_control(struct command *cmd,
						const char *buffer,
						const jsmntok_t *obj UNNEEDED,
						const jsmntok_t *params)
{
	struct plugin_command *pcmd;
	const char *subcmd;
	subcmd = param_subcommand(cmd, buffer, params,
	                          "start", "stop", "startdir",
	                          "rescan", "list", NULL);
	if (!subcmd)
		return command_param_failed();

	pcmd = tal(cmd, struct plugin_command);
	pcmd->cmd = cmd;
	pcmd->subcmd = subcmd;

	if (streq(subcmd, "stop")) {
		const char *plugin_name;

		if (!param(cmd, buffer, params,
			   p_req("subcommand", param_ignore, cmd),
			   p_req("plugin", param_string, &plugin_name),
			   NULL))
			return command_param_failed();

		return plugin_dynamic_stop(cmd, plugin_name);
	} else if (streq(subcmd, "start")) {
		const char *plugin_path;
		jsmntok_t *mod_params;

		if (!param_check(cmd, buffer, params,
				 p_req("subcommand", param_ignore, cmd),
				 p_req("plugin", param_string, &plugin_path),
				 p_opt_any(),
				 NULL))
			return command_param_failed();

		/* Manually parse any remaining options (only for objects,
		 * since plugin options must be explicitly named!). */
		if (params->type == JSMN_ARRAY) {
			if (params->size != 2)
				return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
						    "Extra parameters must be in object");
			mod_params = NULL;
		} else {
			mod_params = json_tok_copy(cmd, params);

			json_tok_remove(&mod_params, mod_params,
					json_get_member(buffer, mod_params,
							"subcommand") - 1, 1);
			json_tok_remove(&mod_params, mod_params,
					json_get_member(buffer, mod_params,
							"plugin") - 1, 1);
		}
		if (access(plugin_path, X_OK) != 0)
			plugin_path = path_join(cmd,
					cmd->ld->plugins->default_dir, plugin_path);