---

yaml
---
r: 75966
b: refs/heads/master
c: 378f4f5
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 84c911523020a2e39b307a2da26ee1886b7214fe
+refs/heads/master: 378f4f51f9fdd8df80ea875320e2bf1d7c6e6e77

trunk/crypto/ablkcipher.c

@@ -13,14 +13,16 @@
  *
  */
 
-#include <crypto/algapi.h>
-#include <linux/errno.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/seq_file.h>
 
+#include "internal.h"
+
 static int setkey_unaligned(struct crypto_ablkcipher *tfm, const u8 *key,
 			    unsigned int keylen)
 {
@@ -105,5 +107,24 @@ const struct crypto_type crypto_ablkcipher_type = {
 };
 EXPORT_SYMBOL_GPL(crypto_ablkcipher_type);
 
+int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
+			 u32 type, u32 mask)
+{
+	struct crypto_alg *alg;
+	int err;
+
+	type = crypto_skcipher_type(type);
+	mask = crypto_skcipher_mask(mask);
+
+	alg = crypto_alg_mod_lookup(name, type, mask);
+	if (IS_ERR(alg))
+		return PTR_ERR(alg);
+
+	err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
+	crypto_mod_put(alg);
+	return err;
+}
+EXPORT_SYMBOL_GPL(crypto_grab_skcipher);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Asynchronous block chaining cipher type");

trunk/include/crypto/algapi.h

@@ -111,6 +111,12 @@ void crypto_drop_spawn(struct crypto_spawn *spawn);
 struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
 				    u32 mask);
 
+static inline void crypto_set_spawn(struct crypto_spawn *spawn,
+				    struct crypto_instance *inst)
+{
+	spawn->inst = inst;
+}
+
 struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
 int crypto_check_attr_type(struct rtattr **tb, u32 type);
 const char *crypto_attr_alg_name(struct rtattr *rta);
@@ -195,10 +201,9 @@ static inline struct crypto_instance *crypto_aead_alg_instance(
 static inline struct crypto_ablkcipher *crypto_spawn_ablkcipher(
 	struct crypto_spawn *spawn)
 {
-	u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
-	u32 mask = CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
-
-	return __crypto_ablkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
+	return __crypto_ablkcipher_cast(
+		crypto_spawn_tfm(spawn, crypto_skcipher_type(0),
+				 crypto_skcipher_mask(0)));
 }
 
 static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
@@ -308,5 +313,14 @@ static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
 	return crypto_attr_alg(tb[1], type, mask);
 }
 
+/*
+ * Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms.
+ * Otherwise returns zero.
+ */
+static inline int crypto_requires_sync(u32 type, u32 mask)
+{
+	return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
+}
+
 #endif	/* _CRYPTO_ALGAPI_H */
 

trunk/include/crypto/internal/skcipher.h

@@ -0,0 +1,51 @@
+/*
+ * Symmetric key ciphers.
+ * 
+ * Copyright (c) 2007 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
+ * Software Foundation; either version 2 of the License, or (at your option) 
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_INTERNAL_SKCIPHER_H
+#define _CRYPTO_INTERNAL_SKCIPHER_H
+
+#include <crypto/algapi.h>
+
+struct crypto_skcipher_spawn {
+	struct crypto_spawn base;
+};
+
+static inline void crypto_set_skcipher_spawn(
+	struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
+{
+	crypto_set_spawn(&spawn->base, inst);
+}
+
+int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
+			 u32 type, u32 mask);
+
+static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
+{
+	crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct crypto_alg *crypto_skcipher_spawn_alg(
+	struct crypto_skcipher_spawn *spawn)
+{
+	return spawn->base.alg;
+}
+
+static inline struct crypto_ablkcipher *crypto_spawn_skcipher(
+	struct crypto_skcipher_spawn *spawn)
+{
+	return __crypto_ablkcipher_cast(
+		crypto_spawn_tfm(&spawn->base, crypto_skcipher_type(0),
+				 crypto_skcipher_mask(0)));
+}
+
+#endif	/* _CRYPTO_INTERNAL_SKCIPHER_H */
+

trunk/include/linux/crypto.h

@@ -528,16 +528,26 @@ static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
 	return (struct crypto_ablkcipher *)tfm;
 }
 
-static inline struct crypto_ablkcipher *crypto_alloc_ablkcipher(
-	const char *alg_name, u32 type, u32 mask)
+static inline u32 crypto_skcipher_type(u32 type)
 {
 	type &= ~CRYPTO_ALG_TYPE_MASK;
-	mask &= ~CRYPTO_ALG_TYPE_MASK;
 	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+	return type;
+}
+
+static inline u32 crypto_skcipher_mask(u32 mask)
+{
+	mask &= ~CRYPTO_ALG_TYPE_MASK;
 	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
+	return mask;
+}
 
+static inline struct crypto_ablkcipher *crypto_alloc_ablkcipher(
+	const char *alg_name, u32 type, u32 mask)
+{
 	return __crypto_ablkcipher_cast(
-		crypto_alloc_base(alg_name, type, mask));
+		crypto_alloc_base(alg_name, crypto_skcipher_type(type),
+				  crypto_skcipher_mask(mask)));
 }
 
 static inline struct crypto_tfm *crypto_ablkcipher_tfm(
@@ -554,12 +564,8 @@ static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
 static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
 					u32 mask)
 {
-	type &= ~CRYPTO_ALG_TYPE_MASK;
-	mask &= ~CRYPTO_ALG_TYPE_MASK;
-	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
-	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
-
-	return crypto_has_alg(alg_name, type, mask);
+	return crypto_has_alg(alg_name, crypto_skcipher_type(type),
+			      crypto_skcipher_mask(mask));
 }
 
 static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(