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[CRYPTO] api: Added spawns

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Spawns lock a specific crypto algorithm in place.  They can then be used
with crypto_spawn_tfm to allocate a tfm for that algorithm.  When the base
algorithm of a spawn is deregistered, all its spawns will be automatically
removed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-09-21 11:39:29 +10:00
parent 492e2b63eb
commit 6bfd48096f
6 changed files with 280 additions and 53 deletions
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4
include/linux/crypto.h
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@ -35,6 +35,8 @@
#define CRYPTO_ALG_TYPE_COMPRESS 0x00000004
#define CRYPTO_ALG_LARVAL 0x00000010
#define CRYPTO_ALG_DEAD 0x00000020
#define CRYPTO_ALG_DYING 0x00000040
/*
* Transform masks and values (for crt_flags).
@ -145,6 +147,8 @@ struct compress_alg {
struct crypto_alg {
struct list_head cra_list;
struct list_head cra_users;
u32 cra_flags;
unsigned int cra_blocksize;
unsigned int cra_ctxsize;