summaryrefslogtreecommitdiff
path: root/crypto/internal.h
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/internal.h')
-rw-r--r--crypto/internal.h106
1 files changed, 89 insertions, 17 deletions
diff --git a/crypto/internal.h b/crypto/internal.h
index 959e602909a6..2da6ad4f3593 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -12,19 +12,43 @@
*/
#ifndef _CRYPTO_INTERNAL_H
#define _CRYPTO_INTERNAL_H
-#include <linux/crypto.h>
+
+#include <crypto/algapi.h>
+#include <linux/completion.h>
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/list.h>
+#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/notifier.h>
#include <linux/rwsem.h>
#include <linux/slab.h>
#include <asm/kmap_types.h>
+/* Crypto notification events. */
+enum {
+ CRYPTO_MSG_ALG_REQUEST,
+ CRYPTO_MSG_ALG_REGISTER,
+ CRYPTO_MSG_ALG_UNREGISTER,
+ CRYPTO_MSG_TMPL_REGISTER,
+ CRYPTO_MSG_TMPL_UNREGISTER,
+};
+
+struct crypto_instance;
+struct crypto_template;
+
+struct crypto_larval {
+ struct crypto_alg alg;
+ struct crypto_alg *adult;
+ struct completion completion;
+ u32 mask;
+};
+
extern struct list_head crypto_alg_list;
extern struct rw_semaphore crypto_alg_sem;
+extern struct blocking_notifier_head crypto_chain;
extern enum km_type crypto_km_types[];
@@ -43,36 +67,33 @@ static inline void crypto_kunmap(void *vaddr, int out)
kunmap_atomic(vaddr, crypto_kmap_type(out));
}
-static inline void crypto_yield(struct crypto_tfm *tfm)
+static inline void crypto_yield(u32 flags)
{
- if (tfm->crt_flags & CRYPTO_TFM_REQ_MAY_SLEEP)
+ if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
cond_resched();
}
-#ifdef CONFIG_CRYPTO_HMAC
-int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
-void crypto_free_hmac_block(struct crypto_tfm *tfm);
-#else
-static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
-{
- return 0;
-}
-
-static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
-{ }
-#endif
-
#ifdef CONFIG_PROC_FS
void __init crypto_init_proc(void);
+void __exit crypto_exit_proc(void);
#else
static inline void crypto_init_proc(void)
{ }
+static inline void crypto_exit_proc(void)
+{ }
#endif
static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,
int flags)
{
- return alg->cra_ctxsize;
+ unsigned int len = alg->cra_ctxsize;
+
+ if (alg->cra_alignmask) {
+ len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
+ len += alg->cra_digest.dia_digestsize;
+ }
+
+ return len;
}
static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
@@ -96,6 +117,10 @@ static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg,
return alg->cra_ctxsize;
}
+struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
+struct crypto_alg *__crypto_alg_lookup(const char *name, u32 type, u32 mask);
+struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
+
int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
@@ -108,5 +133,52 @@ void crypto_exit_digest_ops(struct crypto_tfm *tfm);
void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
void crypto_exit_compress_ops(struct crypto_tfm *tfm);
+void crypto_larval_error(const char *name, u32 type, u32 mask);
+
+void crypto_shoot_alg(struct crypto_alg *alg);
+struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags);
+
+int crypto_register_instance(struct crypto_template *tmpl,
+ struct crypto_instance *inst);
+
+int crypto_register_notifier(struct notifier_block *nb);
+int crypto_unregister_notifier(struct notifier_block *nb);
+
+static inline void crypto_alg_put(struct crypto_alg *alg)
+{
+ if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
+ alg->cra_destroy(alg);
+}
+
+static inline int crypto_tmpl_get(struct crypto_template *tmpl)
+{
+ return try_module_get(tmpl->module);
+}
+
+static inline void crypto_tmpl_put(struct crypto_template *tmpl)
+{
+ module_put(tmpl->module);
+}
+
+static inline int crypto_is_larval(struct crypto_alg *alg)
+{
+ return alg->cra_flags & CRYPTO_ALG_LARVAL;
+}
+
+static inline int crypto_is_dead(struct crypto_alg *alg)
+{
+ return alg->cra_flags & CRYPTO_ALG_DEAD;
+}
+
+static inline int crypto_is_moribund(struct crypto_alg *alg)
+{
+ return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
+}
+
+static inline int crypto_notify(unsigned long val, void *v)
+{
+ return blocking_notifier_call_chain(&crypto_chain, val, v);
+}
+
#endif /* _CRYPTO_INTERNAL_H */