* Cryptographic API.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
*/
#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/kmod.h>
-#include <asm/kmap_types.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 <linux/fips.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;
-extern enum km_type crypto_km_types[];
+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;
+
+#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 enum km_type crypto_kmap_type(int out)
+static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
{
- return crypto_km_types[(in_softirq() ? 2 : 0) + out];
+ return alg->cra_ctxsize;
}
-static inline void *crypto_kmap(struct page *page, int out)
+static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
{
- return kmap_atomic(page, crypto_kmap_type(out));
+ return alg->cra_ctxsize;
}
-static inline void crypto_kunmap(void *vaddr, int out)
+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_cipher_ops(struct crypto_tfm *tfm);
+int crypto_init_compress_ops(struct crypto_tfm *tfm);
+
+void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
+void crypto_exit_compress_ops(struct crypto_tfm *tfm);
+
+struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
+void crypto_larval_kill(struct crypto_alg *alg);
+struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask);
+void crypto_larval_error(const char *name, u32 type, u32 mask);
+void crypto_alg_tested(const char *name, int err);
+
+void crypto_shoot_alg(struct crypto_alg *alg);
+struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
+ u32 mask);
+void *crypto_create_tfm(struct crypto_alg *alg,
+ const struct crypto_type *frontend);
+struct crypto_alg *crypto_find_alg(const char *alg_name,
+ const struct crypto_type *frontend,
+ u32 type, u32 mask);
+void *crypto_alloc_tfm(const char *alg_name,
+ const struct crypto_type *frontend, u32 type, u32 mask);
+
+int crypto_register_notifier(struct notifier_block *nb);
+int crypto_unregister_notifier(struct notifier_block *nb);
+int crypto_probing_notify(unsigned long val, void *v);
+
+static inline void crypto_alg_put(struct crypto_alg *alg)
{
- kunmap_atomic(vaddr, crypto_kmap_type(out));
+ if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
+ alg->cra_destroy(alg);
}
-static inline void crypto_yield(struct crypto_tfm *tfm)
+static inline int crypto_tmpl_get(struct crypto_template *tmpl)
{
- if (!in_atomic())
- cond_resched();
+ return try_module_get(tmpl->module);
}
-struct crypto_alg *crypto_alg_lookup(const char *name);
-
-/* A far more intelligent version of this is planned. For now, just
- * try an exact match on the name of the algorithm. */
-static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
+static inline void crypto_tmpl_put(struct crypto_template *tmpl)
{
- return try_then_request_module(crypto_alg_lookup(name), name);
+ module_put(tmpl->module);
}
-#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)
+static inline int crypto_is_larval(struct crypto_alg *alg)
{
- return 0;
+ return alg->cra_flags & CRYPTO_ALG_LARVAL;
}
-static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
-{ }
-#endif
-
-#ifdef CONFIG_PROC_FS
-void __init crypto_init_proc(void);
-#else
-static inline void crypto_init_proc(void)
-{ }
-#endif
-
-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);
+static inline int crypto_is_dead(struct crypto_alg *alg)
+{
+ return alg->cra_flags & CRYPTO_ALG_DEAD;
+}
-int crypto_init_digest_ops(struct crypto_tfm *tfm);
-int crypto_init_cipher_ops(struct crypto_tfm *tfm);
-int crypto_init_compress_ops(struct crypto_tfm *tfm);
+static inline int crypto_is_moribund(struct crypto_alg *alg)
+{
+ return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
+}
-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);
+static inline void crypto_notify(unsigned long val, void *v)
+{
+ blocking_notifier_call_chain(&crypto_chain, val, v);
+}
#endif /* _CRYPTO_INTERNAL_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff