1 files changed, 31 insertions, 62 deletions

diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fede394ae2ab..016d5a302b84 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -7,15 +7,12 @@
 #ifndef _CRYPTO_ALGAPI_H
 #define _CRYPTO_ALGAPI_H
 
+#include <crypto/utils.h>
 #include <linux/align.h>
 #include <linux/cache.h>
 #include <linux/crypto.h>
-#include <linux/kconfig.h>
-#include <linux/list.h>
 #include <linux/types.h>
 
-#include <asm/unaligned.h>
-
 /*
  * Maximum values for blocksize and alignmask, used to allocate
  * static buffers that are big enough for any combination of
@@ -34,11 +31,25 @@
 
 #define CRYPTO_DMA_PADDING ((CRYPTO_DMA_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
 
+/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name)	\
+		__MODULE_INFO(alias, alias_userspace, name);	\
+		__MODULE_INFO(alias, alias_crypto, "crypto-" name)
+
 struct crypto_aead;
 struct crypto_instance;
 struct module;
 struct notifier_block;
 struct rtattr;
+struct scatterlist;
 struct seq_file;
 struct sk_buff;
 
@@ -50,6 +61,9 @@ struct crypto_type {
 	void (*show)(struct seq_file *m, struct crypto_alg *alg);
 	int (*report)(struct sk_buff *skb, struct crypto_alg *alg);
 	void (*free)(struct crypto_instance *inst);
+#ifdef CONFIG_CRYPTO_STATS
+	int (*report_stat)(struct sk_buff *skb, struct crypto_alg *alg);
+#endif
 
 	unsigned int type;
 	unsigned int maskclear;
@@ -119,6 +133,14 @@ struct crypto_attr_type {
 	u32 mask;
 };
 
+/*
+ * Algorithm registration interface.
+ */
+int crypto_register_alg(struct crypto_alg *alg);
+void crypto_unregister_alg(struct crypto_alg *alg);
+int crypto_register_algs(struct crypto_alg *algs, int count);
+void crypto_unregister_algs(struct crypto_alg *algs, int count);
+
 void crypto_mod_put(struct crypto_alg *alg);
 
 int crypto_register_template(struct crypto_template *tmpl);
@@ -156,47 +178,6 @@ static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
 }
 
 void crypto_inc(u8 *a, unsigned int size);
-void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int size);
-
-static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
-{
-	if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
-	    __builtin_constant_p(size) &&
-	    (size % sizeof(unsigned long)) == 0) {
-		unsigned long *d = (unsigned long *)dst;
-		unsigned long *s = (unsigned long *)src;
-		unsigned long l;
-
-		while (size > 0) {
-			l = get_unaligned(d) ^ get_unaligned(s++);
-			put_unaligned(l, d++);
-			size -= sizeof(unsigned long);
-		}
-	} else {
-		__crypto_xor(dst, dst, src, size);
-	}
-}
-
-static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
-				  unsigned int size)
-{
-	if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
-	    __builtin_constant_p(size) &&
-	    (size % sizeof(unsigned long)) == 0) {
-		unsigned long *d = (unsigned long *)dst;
-		unsigned long *s1 = (unsigned long *)src1;
-		unsigned long *s2 = (unsigned long *)src2;
-		unsigned long l;
-
-		while (size > 0) {
-			l = get_unaligned(s1++) ^ get_unaligned(s2++);
-			put_unaligned(l, d++);
-			size -= sizeof(unsigned long);
-		}
-	} else {
-		__crypto_xor(dst, src1, src2, size);
-	}
-}
 
 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
 {
@@ -275,23 +256,6 @@ static inline u32 crypto_algt_inherited_mask(struct crypto_attr_type *algt)
 	return crypto_requires_off(algt, CRYPTO_ALG_INHERITED_FLAGS);
 }
 
-noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
-
-/**
- * crypto_memneq - Compare two areas of memory without leaking
- *		   timing information.
- *
- * @a: One area of memory
- * @b: Another area of memory
- * @size: The size of the area.
- *
- * Returns 0 when data is equal, 1 otherwise.
- */
-static inline int crypto_memneq(const void *a, const void *b, size_t size)
-{
-	return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
-}
-
 int crypto_register_notifier(struct notifier_block *nb);
 int crypto_unregister_notifier(struct notifier_block *nb);
 
@@ -308,4 +272,9 @@ static inline void crypto_request_complete(struct crypto_async_request *req,
 	req->complete(req->data, err);
 }
 
+static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
+{
+	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
+}
+
 #endif	/* _CRYPTO_ALGAPI_H */