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crypto: skcipher - Move IV generators into their own modules

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This patch moves the default IV generators into their own modules
in order to break a dependency loop between cryptomgr, rng, and
blkcipher.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2008-08-17 18:04:30 +10:00
parent 1aa4ecd95d
commit 5be5e667a9
5 changed files with 18 additions and 41 deletions
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4
crypto/Makefile
View file

@ -13,9 +13,9 @@ obj-$(CONFIG_CRYPTO_AEAD) += aead.o
crypto_blkcipher-objs := ablkcipher.o
crypto_blkcipher-objs += blkcipher.o
crypto_blkcipher-objs += chainiv.o
crypto_blkcipher-objs += eseqiv.o
obj-$(CONFIG_CRYPTO_BLKCIPHER) += crypto_blkcipher.o
obj-$(CONFIG_CRYPTO_BLKCIPHER) += chainiv.o
obj-$(CONFIG_CRYPTO_BLKCIPHER) += eseqiv.o
obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o
crypto_hash-objs := hash.o

29
crypto/blkcipher.c
View file

@ -696,34 +696,5 @@ void skcipher_geniv_exit(struct crypto_tfm *tfm)
}
EXPORT_SYMBOL_GPL(skcipher_geniv_exit);
static int __init blkcipher_module_init(void)
{
int err;
err = chainiv_module_init();
if (err)
goto out;
err = eseqiv_module_init();
if (err)
goto eseqiv_err;
out:
return err;
eseqiv_err:
chainiv_module_exit();
goto out;
}
static void __exit blkcipher_module_exit(void)
{
eseqiv_module_exit();
chainiv_module_exit();
}
module_init(blkcipher_module_init);
module_exit(blkcipher_module_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Generic block chaining cipher type");

10
crypto/chainiv.c
View file

@ -320,12 +320,18 @@ static struct crypto_template chainiv_tmpl = {
.module = THIS_MODULE,
};
int __init chainiv_module_init(void)
static int __init chainiv_module_init(void)
{
return crypto_register_template(&chainiv_tmpl);
}
void chainiv_module_exit(void)
static void chainiv_module_exit(void)
{
crypto_unregister_template(&chainiv_tmpl);
}
module_init(chainiv_module_init);
module_exit(chainiv_module_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Chain IV Generator");

10
crypto/eseqiv.c
View file

@ -248,12 +248,18 @@ static struct crypto_template eseqiv_tmpl = {
.module = THIS_MODULE,
};
int __init eseqiv_module_init(void)
static int __init eseqiv_module_init(void)
{
return crypto_register_template(&eseqiv_tmpl);
}
void __exit eseqiv_module_exit(void)
static void __exit eseqiv_module_exit(void)
{
crypto_unregister_template(&eseqiv_tmpl);
}
module_init(eseqiv_module_init);
module_exit(eseqiv_module_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Encrypted Sequence Number IV Generator");

6
include/crypto/internal/skcipher.h
View file

@ -15,7 +15,6 @@
#include <crypto/algapi.h>
#include <crypto/skcipher.h>
#include <linux/init.h>
#include <linux/types.h>
struct rtattr;
@ -65,11 +64,6 @@ void skcipher_geniv_free(struct crypto_instance *inst);
int skcipher_geniv_init(struct crypto_tfm *tfm);
void skcipher_geniv_exit(struct crypto_tfm *tfm);
int __init eseqiv_module_init(void);
void __exit eseqiv_module_exit(void);
int __init chainiv_module_init(void);
void chainiv_module_exit(void);
static inline struct crypto_ablkcipher *skcipher_geniv_cipher(
struct crypto_ablkcipher *geniv)
{