linux-kernel - Re: [PATCH v6 1/5] random: Blocking API for accessing nonblocking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <7743005.ngVOaoViLi@tauon>
Date:	Mon, 18 May 2015 15:07:10 +0200
From:	Stephan Mueller <smueller@...onox.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	pebolle@...cali.nl, andreas.steffen@...ongswan.org, tytso@....edu,
	sandyinchina@...il.com, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH v6 1/5] random: Blocking API for accessing nonblocking_pool

Am Montag, 18. Mai 2015, 17:21:31 schrieb Herbert Xu:

Hi Herbert,

>> +/*
>> + * Equivalent function to get_random_bytes with the difference that this
>> + * function blocks the request until the nonblocking_pool is initialized.
>> + */
>> +int get_blocking_random_bytes_cb(void *buf, int nbytes, void *private,
>> +				 void (*cb)(void *buf, int buflen,
>> +					    void *private))
>
>You can simplify this further and get rid of buf/nbytes.  All
>we need to know is whether the pool is ready.  Everything else
>can come from private.
>
So, the async function is now just a notification of the caller. Sounds good 
with me.

>> +	struct random_work *rw = NULL;
>> +	int ret = 0;
>
>I think this function should return 0 if the pool is ready now,
>-EINPROGRESS if it's not (indicating that the callback will be
>called when it is ready) and otherwise an error.

Ok, will come in the next patch.

Ciao
Stephan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/