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From: Vladimir Davydov <vdavydov.dev@gmail.com>
To: Kirill Shcherbatov <kshcherbatov@tarantool.org>
Cc: tarantool-patches@freelists.org
Subject: Re: [tarantool-patches] Re: [PATCH v1 1/1] box: support reload whole module
Date: Wed, 11 Jul 2018 15:46:56 +0300	[thread overview]
Message-ID: <20180711124656.pzuh254bjku3k2xc@esperanza> (raw)
In-Reply-To: <ee3bce0ec019dfe91a2107a71936d5b4f7905098.1531204945.git.kshcherbatov@tarantool.org>

On Tue, Jul 10, 2018 at 09:49:14AM +0300, Kirill Shcherbatov wrote:
> @@ -318,7 +320,19 @@ module_reload(const char *package, const char *package_end, struct module **modu
>  	struct func *func, *tmp_func;
>  	rlist_foreach_entry_safe(func, &old_module->funcs, item, tmp_func) {
>  		struct func_name name;
> -		func_split_name(func->def->name, &name);
> +		const char *func_name = func->def->name;
> +		func_split_name(func_name, &name);
> +
> +		/*
> +		 * Allow to reload only functions that belongs to
> +		 * current user. Skip other.
> +		 */
> +		struct func *dummy;
> +		if (check_access &&
> +		    box_func_check_access(func_name, strlen(func_name),
> +					  &dummy) != 0)
> +			continue;
> +

AFAIU a user may reload a whole module only if he has the global EXECUTE
privilege (because we don't have such an entity as module in our data
dictionary to grant access rights for). access_check_func(), which is
called by func_reload(), already checks the global EXECUTE privilege and
returns 0 (success) if it is set, no matter if the function was found or
not. So all you have to do is call module_reload() from func_reload() if
access_check_func() returned func = NULL, no?

  parent reply	other threads:[~2018-07-11 12:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-09 16:54 [tarantool-patches] " Kirill Shcherbatov
2018-07-09 18:06 ` [tarantool-patches] " Vladislav Shpilevoy
2018-07-10  6:49   ` Kirill Shcherbatov
2018-07-11  5:25     ` Georgy Kirichenko
2018-07-11 12:46     ` Vladimir Davydov [this message]
2018-07-11 12:52       ` Kirill Shcherbatov
2018-07-11 12:59         ` Vladimir Davydov
2018-07-11 14:50           ` Kirill Shcherbatov
2018-07-11 15:57       ` Vladimir Davydov
2018-07-12  8:27         ` Kirill Shcherbatov
2018-07-12  9:31           ` Vladimir Davydov
2018-07-13  6:16 ` Kirill Yukhin

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