* shash_alg size fields and stomping memory
@ 2011-04-19 18:29 Kent Borg
2011-04-27 9:57 ` Herbert Xu
0 siblings, 1 reply; 2+ messages in thread
From: Kent Borg @ 2011-04-19 18:29 UTC (permalink / raw)
To: Linux Crypto Mailing List
In struct shash_alg what are the various sizes for? (WOuld be cool to
know what everything is for in those alg structures...)
My most recent discovery is that if I want to do an shash_desc_ctx() and
use the result, cra_ctxsize doesn't seem to mean a thing. Rather,
unless I set descsize, memory will be stomped.
And, while I am at it, what is "cra"?
-kb, the Kent who would love to RTFM but there doesn't seem to be an FM.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: shash_alg size fields and stomping memory
2011-04-19 18:29 shash_alg size fields and stomping memory Kent Borg
@ 2011-04-27 9:57 ` Herbert Xu
0 siblings, 0 replies; 2+ messages in thread
From: Herbert Xu @ 2011-04-27 9:57 UTC (permalink / raw)
To: Kent Borg; +Cc: linux-crypto
Kent Borg <kentborg@borg.org> wrote:
>
> My most recent discovery is that if I want to do an shash_desc_ctx() and
> use the result, cra_ctxsize doesn't seem to mean a thing. Rather,
> unless I set descsize, memory will be stomped.
descsize specifies the size of shash_desc_ctx. ctxsize is the
size of crypto_shash_ctx.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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