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 */