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Commit f3f632d6 authored by Herbert Xu's avatar Herbert Xu
Browse files

[CRYPTO] api: Added asynchronous flag 



This patch adds the asynchronous flag and changes all existing users to
only look up algorithms that are synchronous.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 7fed0bf2

crypto/api.c

+3 −2
Original line number Original line Diff line number Diff line
@@ -355,7 +355,7 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags) 
	do {

	do {

		struct crypto_alg *alg;

		struct crypto_alg *alg;





		alg = crypto_alg_mod_lookup(name, 0, 0);

		alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);

		err = PTR_ERR(alg);

		err = PTR_ERR(alg);

		if (IS_ERR(alg))

		if (IS_ERR(alg))

			continue;

			continue;
@@ -394,7 +394,8 @@ void crypto_free_tfm(struct crypto_tfm *tfm) 
int crypto_alg_available(const char *name, u32 flags)

int crypto_alg_available(const char *name, u32 flags)

{

{

	int ret = 0;

	int ret = 0;

	struct crypto_alg *alg = crypto_alg_mod_lookup(name, 0, 0);

	struct crypto_alg *alg = crypto_alg_mod_lookup(name, 0,

						       CRYPTO_ALG_ASYNC);

	

	

	if (!IS_ERR(alg)) {

	if (!IS_ERR(alg)) {

		crypto_mod_put(alg);

		crypto_mod_put(alg);

include/linux/crypto.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -37,6 +37,7 @@ 
#define CRYPTO_ALG_LARVAL		0x00000010

#define CRYPTO_ALG_LARVAL		0x00000010

#define CRYPTO_ALG_DEAD			0x00000020

#define CRYPTO_ALG_DEAD			0x00000020

#define CRYPTO_ALG_DYING		0x00000040

#define CRYPTO_ALG_DYING		0x00000040

#define CRYPTO_ALG_ASYNC		0x00000080





/*

/*

 * Transform masks and values (for crt_flags).

 * Transform masks and values (for crt_flags).