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Date:   Tue, 22 Nov 2022 18:17:10 +0100
From:   Mickaël Salaün <mic@...ikod.net>
To:     Konstantin Meskhidze <konstantin.meskhidze@...wei.com>
Cc:     willemdebruijn.kernel@...il.com, gnoack3000@...il.com,
        linux-security-module@...r.kernel.org, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, artem.kuzin@...wei.com
Subject: Re: [PATCH v8 02/12] landlock: Refactor
 landlock_find_rule/insert_rule


On 17/11/2022 19:41, Mickaël Salaün wrote:
> 
> On 21/10/2022 17:26, Konstantin Meskhidze wrote:

[...]

>> diff --git a/security/landlock/ruleset.h b/security/landlock/ruleset.h
>> index f2ad932d396c..608ab356bc3e 100644
>> --- a/security/landlock/ruleset.h
>> +++ b/security/landlock/ruleset.h
>> @@ -49,6 +49,46 @@ struct landlock_layer {
>>    	access_mask_t access;
>>    };
>>
>> +/**
>> + * union landlock_key - Key of a ruleset's red-black tree
>> + */
>> +union landlock_key {
>> +	/**
>> +	 * @object: Pointer to identify a kernel object (e.g. an inode).
>> +	 */
>> +	struct landlock_object *object;
>> +	/**
>> +	 * @data: A raw data value to identify a network socket port.
> 
> "Raw data to identify an arbitrary 32-bit value (e.g. a TCP port)."
> 
> 
>> +	 */
>> +	uintptr_t data;
>> +};
>> +
>> +/**
>> + * enum landlock_key_type - Type of &union landlock_key
>> + */
>> +enum landlock_key_type {
>> +	/**
>> +	 * @LANDLOCK_KEY_INODE: Type of &landlock_ruleset.root_inode's node
>> +	 * keys.
>> +	 */
>> +	LANDLOCK_KEY_INODE = 1,
>> +};
>> +
>> +/**
>> + * struct landlock_id - Unique rule identifier for a ruleset
>> + */
>> +struct landlock_id {
>> +	/**
>> +	 * @key: A union to identify either a kernel object (e.g. an inode) or
>> +	 * a raw data value (e.g. a network socket port).
> 
> "a 32-bit value (e.g. a TCP port)."

Instead:
@key: Identifies either a kernel object (e.g. an inode) or a raw value 
(e.g. a TCP port).

> 
> 
>> +	 */
>> +	union landlock_key key;
>> +	/**
>> +	 * @type: A enumerator to identify the type of landlock_ruleset's root tree.

@type: Type of a landlock_ruleset's root tree.


>> +	 */
>> +	const enum landlock_key_type type;
>> +};

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