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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 08:38:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 08:38:25 -0800
commiteba0e319c12fb098d66316a8eafbaaa9174a07c3 (patch)
treeb2703117db9e36bb3510654efd55361f61c54742 /include
parentdf8dc74e8a383eaf2d9b44b80a71ec6f0e52b42e (diff)
parent15e7b4452b72ae890f2fcb027b4c4fa63a1c9a7a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (125 commits) [CRYPTO] twofish: Merge common glue code [CRYPTO] hifn_795x: Fixup container_of() usage [CRYPTO] cast6: inline bloat-- [CRYPTO] api: Set default CRYPTO_MINALIGN to unsigned long long [CRYPTO] tcrypt: Make xcbc available as a standalone test [CRYPTO] xcbc: Remove bogus hash/cipher test [CRYPTO] xcbc: Fix algorithm leak when block size check fails [CRYPTO] tcrypt: Zero axbuf in the right function [CRYPTO] padlock: Only reset the key once for each CBC and ECB operation [CRYPTO] api: Include sched.h for cond_resched in scatterwalk.h [CRYPTO] salsa20-asm: Remove unnecessary dependency on CRYPTO_SALSA20 [CRYPTO] tcrypt: Add select of AEAD [CRYPTO] salsa20: Add x86-64 assembly version [CRYPTO] salsa20_i586: Salsa20 stream cipher algorithm (i586 version) [CRYPTO] gcm: Introduce rfc4106 [CRYPTO] api: Show async type [CRYPTO] chainiv: Avoid lock spinning where possible [CRYPTO] seqiv: Add select AEAD in Kconfig [CRYPTO] scatterwalk: Handle zero nbytes in scatterwalk_map_and_copy [CRYPTO] null: Allow setkey on digest_null ...
Diffstat (limited to 'include')
-rw-r--r--include/crypto/aead.h105
-rw-r--r--include/crypto/aes.h31
-rw-r--r--include/crypto/algapi.h31
-rw-r--r--include/crypto/authenc.h27
-rw-r--r--include/crypto/ctr.h20
-rw-r--r--include/crypto/des.h19
-rw-r--r--include/crypto/internal/aead.h80
-rw-r--r--include/crypto/internal/skcipher.h110
-rw-r--r--include/crypto/scatterwalk.h119
-rw-r--r--include/crypto/sha.h12
-rw-r--r--include/crypto/skcipher.h110
-rw-r--r--include/linux/crypto.h103
-rw-r--r--include/linux/hw_random.h2
13 files changed, 723 insertions, 46 deletions
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
new file mode 100644
index 00000000000..0edf949f636
--- /dev/null
+++ b/include/crypto/aead.h
@@ -0,0 +1,105 @@
+/*
+ * AEAD: Authenticated Encryption with Associated Data
+ *
+ * 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_AEAD_H
+#define _CRYPTO_AEAD_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+/**
+ * struct aead_givcrypt_request - AEAD request with IV generation
+ * @seq: Sequence number for IV generation
+ * @giv: Space for generated IV
+ * @areq: The AEAD request itself
+ */
+struct aead_givcrypt_request {
+ u64 seq;
+ u8 *giv;
+
+ struct aead_request areq;
+};
+
+static inline struct crypto_aead *aead_givcrypt_reqtfm(
+ struct aead_givcrypt_request *req)
+{
+ return crypto_aead_reqtfm(&req->areq);
+}
+
+static inline int crypto_aead_givencrypt(struct aead_givcrypt_request *req)
+{
+ struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
+ return crt->givencrypt(req);
+};
+
+static inline int crypto_aead_givdecrypt(struct aead_givcrypt_request *req)
+{
+ struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
+ return crt->givdecrypt(req);
+};
+
+static inline void aead_givcrypt_set_tfm(struct aead_givcrypt_request *req,
+ struct crypto_aead *tfm)
+{
+ req->areq.base.tfm = crypto_aead_tfm(tfm);
+}
+
+static inline struct aead_givcrypt_request *aead_givcrypt_alloc(
+ struct crypto_aead *tfm, gfp_t gfp)
+{
+ struct aead_givcrypt_request *req;
+
+ req = kmalloc(sizeof(struct aead_givcrypt_request) +
+ crypto_aead_reqsize(tfm), gfp);
+
+ if (likely(req))
+ aead_givcrypt_set_tfm(req, tfm);
+
+ return req;
+}
+
+static inline void aead_givcrypt_free(struct aead_givcrypt_request *req)
+{
+ kfree(req);
+}
+
+static inline void aead_givcrypt_set_callback(
+ struct aead_givcrypt_request *req, u32 flags,
+ crypto_completion_t complete, void *data)
+{
+ aead_request_set_callback(&req->areq, flags, complete, data);
+}
+
+static inline void aead_givcrypt_set_crypt(struct aead_givcrypt_request *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int nbytes, void *iv)
+{
+ aead_request_set_crypt(&req->areq, src, dst, nbytes, iv);
+}
+
+static inline void aead_givcrypt_set_assoc(struct aead_givcrypt_request *req,
+ struct scatterlist *assoc,
+ unsigned int assoclen)
+{
+ aead_request_set_assoc(&req->areq, assoc, assoclen);
+}
+
+static inline void aead_givcrypt_set_giv(struct aead_givcrypt_request *req,
+ u8 *giv, u64 seq)
+{
+ req->giv = giv;
+ req->seq = seq;
+}
+
+#endif /* _CRYPTO_AEAD_H */
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
new file mode 100644
index 00000000000..d480b76715a
--- /dev/null
+++ b/include/crypto/aes.h
@@ -0,0 +1,31 @@
+/*
+ * Common values for AES algorithms
+ */
+
+#ifndef _CRYPTO_AES_H
+#define _CRYPTO_AES_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define AES_MIN_KEY_SIZE 16
+#define AES_MAX_KEY_SIZE 32
+#define AES_KEYSIZE_128 16
+#define AES_KEYSIZE_192 24
+#define AES_KEYSIZE_256 32
+#define AES_BLOCK_SIZE 16
+
+struct crypto_aes_ctx {
+ u32 key_length;
+ u32 key_enc[60];
+ u32 key_dec[60];
+};
+
+extern u32 crypto_ft_tab[4][256];
+extern u32 crypto_fl_tab[4][256];
+extern u32 crypto_it_tab[4][256];
+extern u32 crypto_il_tab[4][256];
+
+int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len);
+#endif
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index b9b05d399d2..60d06e784be 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -111,8 +111,15 @@ 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);
struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask);
int crypto_attr_u32(struct rtattr *rta, u32 *num);
struct crypto_instance *crypto_alloc_instance(const char *name,
@@ -124,6 +131,10 @@ int crypto_enqueue_request(struct crypto_queue *queue,
struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue);
int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm);
+/* These functions require the input/output to be aligned as u32. */
+void crypto_inc(u8 *a, unsigned int size);
+void crypto_xor(u8 *dst, const u8 *src, unsigned int size);
+
int blkcipher_walk_done(struct blkcipher_desc *desc,
struct blkcipher_walk *walk, int err);
int blkcipher_walk_virt(struct blkcipher_desc *desc,
@@ -187,20 +198,11 @@ static inline struct crypto_instance *crypto_aead_alg_instance(
return crypto_tfm_alg_instance(&aead->base);
}
-static inline struct crypto_ablkcipher *crypto_spawn_ablkcipher(
- struct crypto_spawn *spawn)
-{
- u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
- u32 mask = CRYPTO_ALG_TYPE_MASK;
-
- return __crypto_ablkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
-}
-
static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
struct crypto_spawn *spawn)
{
u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
- u32 mask = CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+ u32 mask = CRYPTO_ALG_TYPE_MASK;
return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
}
@@ -303,5 +305,14 @@ 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 */
diff --git a/include/crypto/authenc.h b/include/crypto/authenc.h
new file mode 100644
index 00000000000..e47b044929a
--- /dev/null
+++ b/include/crypto/authenc.h
@@ -0,0 +1,27 @@
+/*
+ * Authenc: Simple AEAD wrapper for IPsec
+ *
+ * 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_AUTHENC_H
+#define _CRYPTO_AUTHENC_H
+
+#include <linux/types.h>
+
+enum {
+ CRYPTO_AUTHENC_KEYA_UNSPEC,
+ CRYPTO_AUTHENC_KEYA_PARAM,
+};
+
+struct crypto_authenc_key_param {
+ __be32 enckeylen;
+};
+
+#endif /* _CRYPTO_AUTHENC_H */
+
diff --git a/include/crypto/ctr.h b/include/crypto/ctr.h
new file mode 100644
index 00000000000..4180fc080e3
--- /dev/null
+++ b/include/crypto/ctr.h
@@ -0,0 +1,20 @@
+/*
+ * CTR: Counter mode
+ *
+ * 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_CTR_H
+#define _CRYPTO_CTR_H
+
+#define CTR_RFC3686_NONCE_SIZE 4
+#define CTR_RFC3686_IV_SIZE 8
+#define CTR_RFC3686_BLOCK_SIZE 16
+
+#endif /* _CRYPTO_CTR_H */
diff --git a/include/crypto/des.h b/include/crypto/des.h
new file mode 100644
index 00000000000..2971c6304ad
--- /dev/null
+++ b/include/crypto/des.h
@@ -0,0 +1,19 @@
+/*
+ * DES & Triple DES EDE Cipher Algorithms.
+ */
+
+#ifndef __CRYPTO_DES_H
+#define __CRYPTO_DES_H
+
+#define DES_KEY_SIZE 8
+#define DES_EXPKEY_WORDS 32
+#define DES_BLOCK_SIZE 8
+
+#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
+#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
+#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
+
+
+extern unsigned long des_ekey(u32 *pe, const u8 *k);
+
+#endif /* __CRYPTO_DES_H */
diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h
new file mode 100644
index 00000000000..d838c945575
--- /dev/null
+++ b/include/crypto/internal/aead.h
@@ -0,0 +1,80 @@
+/*
+ * AEAD: Authenticated Encryption with Associated Data
+ *
+ * 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_AEAD_H
+#define _CRYPTO_INTERNAL_AEAD_H
+
+#include <crypto/aead.h>
+#include <crypto/algapi.h>
+#include <linux/types.h>
+
+struct rtattr;
+
+struct crypto_aead_spawn {
+ struct crypto_spawn base;
+};
+
+extern const struct crypto_type crypto_nivaead_type;
+
+static inline void crypto_set_aead_spawn(
+ struct crypto_aead_spawn *spawn, struct crypto_instance *inst)
+{
+ crypto_set_spawn(&spawn->base, inst);
+}
+
+int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
+ u32 type, u32 mask);
+
+static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct crypto_alg *crypto_aead_spawn_alg(
+ struct crypto_aead_spawn *spawn)
+{
+ return spawn->base.alg;
+}
+
+static inline struct crypto_aead *crypto_spawn_aead(
+ struct crypto_aead_spawn *spawn)
+{
+ return __crypto_aead_cast(
+ crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD,
+ CRYPTO_ALG_TYPE_MASK));
+}
+
+struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
+ struct rtattr **tb, u32 type,
+ u32 mask);
+void aead_geniv_free(struct crypto_instance *inst);
+int aead_geniv_init(struct crypto_tfm *tfm);
+void aead_geniv_exit(struct crypto_tfm *tfm);
+
+static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
+{
+ return crypto_aead_crt(geniv)->base;
+}
+
+static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
+{
+ return aead_request_ctx(&req->areq);
+}
+
+static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
+ int err)
+{
+ aead_request_complete(&req->areq, err);
+}
+
+#endif /* _CRYPTO_INTERNAL_AEAD_H */
+
diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h
new file mode 100644
index 00000000000..2ba42cd7d6a
--- /dev/null
+++ b/include/crypto/internal/skcipher.h
@@ -0,0 +1,110 @@
+/*
+ * 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>
+#include <crypto/skcipher.h>
+#include <linux/types.h>
+
+struct rtattr;
+
+struct crypto_skcipher_spawn {
+ struct crypto_spawn base;
+};
+
+extern const struct crypto_type crypto_givcipher_type;
+
+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)));
+}
+
+int skcipher_null_givencrypt(struct skcipher_givcrypt_request *req);
+int skcipher_null_givdecrypt(struct skcipher_givcrypt_request *req);
+const char *crypto_default_geniv(const struct crypto_alg *alg);
+
+struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl,
+ struct rtattr **tb, u32 type,
+ u32 mask);
+void skcipher_geniv_free(struct crypto_instance *inst);
+int skcipher_geniv_init(struct crypto_tfm *tfm);
+void skcipher_geniv_exit(struct crypto_tfm *tfm);
+
+static inline struct crypto_ablkcipher *skcipher_geniv_cipher(
+ struct crypto_ablkcipher *geniv)
+{
+ return crypto_ablkcipher_crt(geniv)->base;
+}
+
+static inline int skcipher_enqueue_givcrypt(
+ struct crypto_queue *queue, struct skcipher_givcrypt_request *request)
+{
+ return ablkcipher_enqueue_request(queue, &request->creq);
+}
+
+static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt(
+ struct crypto_queue *queue)
+{
+ return container_of(ablkcipher_dequeue_request(queue),
+ struct skcipher_givcrypt_request, creq);
+}
+
+static inline void *skcipher_givcrypt_reqctx(
+ struct skcipher_givcrypt_request *req)
+{
+ return ablkcipher_request_ctx(&req->creq);
+}
+
+static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
+ int err)
+{
+ req->base.complete(&req->base, err);
+}
+
+static inline void skcipher_givcrypt_complete(
+ struct skcipher_givcrypt_request *req, int err)
+{
+ ablkcipher_request_complete(&req->creq, err);
+}
+
+static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
+{
+ return req->base.flags;
+}
+
+#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
+
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
new file mode 100644
index 00000000000..224658b8d80
--- /dev/null
+++ b/include/crypto/scatterwalk.h
@@ -0,0 +1,119 @@
+/*
+ * Cryptographic scatter and gather helpers.
+ *
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * Copyright (c) 2002 Adam J. Richter <adam@yggdrasil.com>
+ * Copyright (c) 2004 Jean-Luc Cooke <jlcooke@certainkey.com>
+ * 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_SCATTERWALK_H
+#define _CRYPTO_SCATTERWALK_H
+
+#include <asm/kmap_types.h>
+#include <crypto/algapi.h>
+#include <linux/hardirq.h>
+#include <linux/highmem.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/sched.h>
+
+static inline enum km_type crypto_kmap_type(int out)
+{
+ enum km_type type;
+
+ if (in_softirq())
+ type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
+ else
+ type = out * (KM_USER1 - KM_USER0) + KM_USER0;
+
+ return type;
+}
+
+static inline void *crypto_kmap(struct page *page, int out)
+{
+ return kmap_atomic(page, crypto_kmap_type(out));
+}
+
+static inline void crypto_kunmap(void *vaddr, int out)
+{
+ kunmap_atomic(vaddr, crypto_kmap_type(out));
+}
+
+static inline void crypto_yield(u32 flags)
+{
+ if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
+ cond_resched();
+}
+
+static inline void scatterwalk_sg_chain(struct scatterlist *sg1, int num,
+ struct scatterlist *sg2)
+{
+ sg_set_page(&sg1[num - 1], (void *)sg2, 0, 0);
+}
+
+static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
+{
+ return (++sg)->length ? sg : (void *)sg_page(sg);
+}
+
+static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in,
+ struct scatter_walk *walk_out)
+{
+ return !(((sg_page(walk_in->sg) - sg_page(walk_out->sg)) << PAGE_SHIFT) +
+ (int)(walk_in->offset - walk_out->offset));
+}
+
+static inline unsigned int scatterwalk_pagelen(struct scatter_walk *walk)
+{
+ unsigned int len = walk->sg->offset + walk->sg->length - walk->offset;
+ unsigned int len_this_page = offset_in_page(~walk->offset) + 1;
+ return len_this_page > len ? len : len_this_page;
+}
+
+static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ unsigned int len_this_page = scatterwalk_pagelen(walk);
+ return nbytes > len_this_page ? len_this_page : nbytes;
+}
+
+static inline void scatterwalk_advance(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ walk->offset += nbytes;
+}
+
+static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,
+ unsigned int alignmask)
+{
+ return !(walk->offset & alignmask);
+}
+
+static inline struct page *scatterwalk_page(struct scatter_walk *walk)
+{
+ return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
+}
+
+static inline void scatterwalk_unmap(void *vaddr, int out)
+{
+ crypto_kunmap(vaddr, out);
+}
+
+void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
+void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
+ size_t nbytes, int out);
+void *scatterwalk_map(struct scatter_walk *walk, int out);
+void scatterwalk_done(struct scatter_walk *walk, int out, int more);
+
+void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
+ unsigned int start, unsigned int nbytes, int out);
+
+#endif /* _CRYPTO_SCATTERWALK_H */
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index 0686e1f7a24..c0ccc2b1a2d 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -8,6 +8,9 @@
#define SHA1_DIGEST_SIZE 20
#define SHA1_BLOCK_SIZE 64
+#define SHA224_DIGEST_SIZE 28
+#define SHA224_BLOCK_SIZE 64
+
#define SHA256_DIGEST_SIZE 32
#define SHA256_BLOCK_SIZE 64
@@ -23,6 +26,15 @@
#define SHA1_H3 0x10325476UL
#define SHA1_H4 0xc3d2e1f0UL
+#define SHA224_H0 0xc1059ed8UL
+#define SHA224_H1 0x367cd507UL
+#define SHA224_H2 0x3070dd17UL
+#define SHA224_H3 0xf70e5939UL
+#define SHA224_H4 0xffc00b31UL
+#define SHA224_H5 0x68581511UL
+#define SHA224_H6 0x64f98fa7UL
+#define SHA224_H7 0xbefa4fa4UL
+
#define SHA256_H0 0x6a09e667UL
#define SHA256_H1 0xbb67ae85UL
#define SHA256_H2 0x3c6ef372UL
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
new file mode 100644
index 00000000000..25fd6126522
--- /dev/null
+++ b/include/crypto/skcipher.h
@@ -0,0 +1,110 @@
+/*
+ * 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_SKCIPHER_H
+#define _CRYPTO_SKCIPHER_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+/**
+ * struct skcipher_givcrypt_request - Crypto request with IV generation
+ * @seq: Sequence number for IV generation
+ * @giv: Space for generated IV
+ * @creq: The crypto request itself
+ */
+struct skcipher_givcrypt_request {
+ u64 seq;
+ u8 *giv;
+
+ struct ablkcipher_request creq;
+};
+
+static inline struct crypto_ablkcipher *skcipher_givcrypt_reqtfm(
+ struct skcipher_givcrypt_request *req)
+{
+ return crypto_ablkcipher_reqtfm(&req->creq);
+}
+
+static inline int crypto_skcipher_givencrypt(
+ struct skcipher_givcrypt_request *req)
+{
+ struct ablkcipher_tfm *crt =
+ crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));
+ return crt->givencrypt(req);
+};
+
+static inline int crypto_skcipher_givdecrypt(
+ struct skcipher_givcrypt_request *req)
+{
+ struct ablkcipher_tfm *crt =
+ crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));
+ return crt->givdecrypt(req);
+};
+
+static inline void skcipher_givcrypt_set_tfm(
+ struct skcipher_givcrypt_request *req, struct crypto_ablkcipher *tfm)
+{
+ req->creq.base.tfm = crypto_ablkcipher_tfm(tfm);
+}
+
+static inline struct skcipher_givcrypt_request *skcipher_givcrypt_cast(
+ struct crypto_async_request *req)
+{
+ return container_of(ablkcipher_request_cast(req),
+ struct skcipher_givcrypt_request, creq);
+}
+
+static inline struct skcipher_givcrypt_request *skcipher_givcrypt_alloc(
+ struct crypto_ablkcipher *tfm, gfp_t gfp)
+{
+ struct skcipher_givcrypt_request *req;
+
+ req = kmalloc(sizeof(struct skcipher_givcrypt_request) +
+ crypto_ablkcipher_reqsize(tfm), gfp);
+
+ if (likely(req))
+ skcipher_givcrypt_set_tfm(req, tfm);
+
+ return req;
+}
+
+static inline void skcipher_givcrypt_free(struct skcipher_givcrypt_request *req)
+{
+ kfree(req);
+}
+
+static inline void skcipher_givcrypt_set_callback(
+ struct skcipher_givcrypt_request *req, u32 flags,
+ crypto_completion_t complete, void *data)
+{
+ ablkcipher_request_set_callback(&req->creq, flags, complete, data);
+}
+
+static inline void skcipher_givcrypt_set_crypt(
+ struct skcipher_givcrypt_request *req,
+ struct scatterlist *src, struct scatterlist *dst,
+ unsigned int nbytes, void *iv)
+{
+ ablkcipher_request_set_crypt(&req->creq, src, dst, nbytes, iv);
+}
+
+static inline void skcipher_givcrypt_set_giv(
+ struct skcipher_givcrypt_request *req, u8 *giv, u64 seq)
+{
+ req->giv = giv;
+ req->seq = seq;
+}
+
+#endif /* _CRYPTO_SKCIPHER_H */
+
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index f3110ebe894..5e02d1b4637 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -33,10 +33,13 @@
#define CRYPTO_ALG_TYPE_DIGEST 0x00000002
#define CRYPTO_ALG_TYPE_HASH 0x00000003
#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004
-#define CRYPTO_ALG_TYPE_COMPRESS 0x00000005
-#define CRYPTO_ALG_TYPE_AEAD 0x00000006
+#define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005
+#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006
+#define CRYPTO_ALG_TYPE_COMPRESS 0x00000008
+#define CRYPTO_ALG_TYPE_AEAD 0x00000009
#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
+#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c
#define CRYPTO_ALG_LARVAL 0x00000010
#define CRYPTO_ALG_DEAD 0x00000020
@@ -50,6 +53,12 @@
#define CRYPTO_ALG_NEED_FALLBACK 0x00000100
/*
+ * This bit is set for symmetric key ciphers that have already been wrapped
+ * with a generic IV generator to prevent them from being wrapped again.
+ */
+#define CRYPTO_ALG_GENIV 0x00000200
+
+/*
* Transform masks and values (for crt_flags).
*/
#define CRYPTO_TFM_REQ_MASK 0x000fff00
@@ -81,13 +90,11 @@
#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
#elif defined(ARCH_SLAB_MINALIGN)
#define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
+#else
+#define CRYPTO_MINALIGN __alignof__(unsigned long long)
#endif
-#ifdef CRYPTO_MINALIGN
#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
-#else
-#define CRYPTO_MINALIGN_ATTR
-#endif
struct scatterlist;
struct crypto_ablkcipher;
@@ -97,6 +104,8 @@ struct crypto_blkcipher;
struct crypto_hash;
struct crypto_tfm;
struct crypto_type;
+struct aead_givcrypt_request;
+struct skcipher_givcrypt_request;
typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
@@ -176,6 +185,10 @@ struct ablkcipher_alg {
unsigned int keylen);
int (*encrypt)(struct ablkcipher_request *req);
int (*decrypt)(struct ablkcipher_request *req);
+ int (*givencrypt)(struct skcipher_givcrypt_request *req);
+ int (*givdecrypt)(struct skcipher_givcrypt_request *req);
+
+ const char *geniv;
unsigned int min_keysize;
unsigned int max_keysize;
@@ -185,11 +198,16 @@ struct ablkcipher_alg {
struct aead_alg {
int (*setkey)(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen);
+ int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
int (*encrypt)(struct aead_request *req);
int (*decrypt)(struct aead_request *req);
+ int (*givencrypt)(struct aead_givcrypt_request *req);
+ int (*givdecrypt)(struct aead_givcrypt_request *req);
+
+ const char *geniv;
unsigned int ivsize;
- unsigned int authsize;
+ unsigned int maxauthsize;
};
struct blkcipher_alg {
@@ -202,6 +220,8 @@ struct blkcipher_alg {
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes);
+ const char *geniv;
+
unsigned int min_keysize;
unsigned int max_keysize;
unsigned int ivsize;
@@ -317,6 +337,11 @@ struct ablkcipher_tfm {
unsigned int keylen);
int (*encrypt)(struct ablkcipher_request *req);
int (*decrypt)(struct ablkcipher_request *req);
+ int (*givencrypt)(struct skcipher_givcrypt_request *req);
+ int (*givdecrypt)(struct skcipher_givcrypt_request *req);
+
+ struct crypto_ablkcipher *base;
+
unsigned int ivsize;
unsigned int reqsize;
};
@@ -326,6 +351,11 @@ struct aead_tfm {
unsigned int keylen);
int (*encrypt)(struct aead_request *req);
int (*decrypt)(struct aead_request *req);
+ int (*givencrypt)(struct aead_givcrypt_request *req);
+ int (*givdecrypt)(struct aead_givcrypt_request *req);
+
+ struct crypto_aead *base;
+
unsigned int ivsize;
unsigned int authsize;
unsigned int reqsize;
@@ -525,17 +555,23 @@ 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;
+ type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK;
+ return type;
+}
- return __crypto_ablkcipher_cast(
- crypto_alloc_base(alg_name, type, mask));
+static inline u32 crypto_skcipher_mask(u32 mask)
+{
+ mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+ mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
+ return mask;
}
+struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
+ u32 type, u32 mask);
+
static inline struct crypto_tfm *crypto_ablkcipher_tfm(
struct crypto_ablkcipher *tfm)
{
@@ -550,11 +586,8 @@ 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;
- type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_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(
@@ -601,7 +634,9 @@ static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
const u8 *key, unsigned int keylen)
{
- return crypto_ablkcipher_crt(tfm)->setkey(tfm, key, keylen);
+ struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);
+
+ return crt->setkey(crt->base, key, keylen);
}
static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
@@ -633,7 +668,7 @@ static inline unsigned int crypto_ablkcipher_reqsize(
static inline void ablkcipher_request_set_tfm(
struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
{
- req->base.tfm = crypto_ablkcipher_tfm(tfm);
+ req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
}
static inline struct ablkcipher_request *ablkcipher_request_cast(
@@ -686,15 +721,7 @@ static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
return (struct crypto_aead *)tfm;
}
-static inline struct crypto_aead *crypto_alloc_aead(const char *alg_name,
- u32 type, u32 mask)
-{
- type &= ~CRYPTO_ALG_TYPE_MASK;
- type |= CRYPTO_ALG_TYPE_AEAD;
- mask |= CRYPTO_ALG_TYPE_MASK;
-
- return __crypto_aead_cast(crypto_alloc_base(alg_name, type, mask));
-}
+struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);
static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
{
@@ -749,9 +776,13 @@ static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen)
{
- return crypto_aead_crt(tfm)->setkey(tfm, key, keylen);
+ struct aead_tfm *crt = crypto_aead_crt(tfm);
+
+ return crt->setkey(crt->base, key, keylen);
}
+int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
+
static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
{
return __crypto_aead_cast(req->base.tfm);
@@ -775,7 +806,7 @@ static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
static inline void aead_request_set_tfm(struct aead_request *req,
struct crypto_aead *tfm)
{
- req->base.tfm = crypto_aead_tfm(tfm);
+ req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base);
}
static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
@@ -841,9 +872,9 @@ static inline struct crypto_blkcipher *crypto_blkcipher_cast(
static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
const char *alg_name, u32 type, u32 mask)
{
- type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
+ type &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+ mask |= CRYPTO_ALG_TYPE_MASK;
return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
}
@@ -861,9 +892,9 @@ static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
{
- type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
+ type &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+ mask |= CRYPTO_ALG_TYPE_MASK;
return crypto_has_alg(alg_name, type, mask);
}
@@ -1081,6 +1112,7 @@ static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
+ mask &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_HASH;
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
@@ -1100,6 +1132,7 @@ static inline void crypto_free_hash(struct crypto_hash *tfm)
static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
+ mask &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_HASH;
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
diff --git a/include/linux/hw_random.h b/include/linux/hw_random.h
index 21ea7610e17..85d11916e9e 100644
--- a/include/linux/hw_random.h
+++ b/include/linux/hw_random.h
@@ -33,7 +33,7 @@ struct hwrng {
const char *name;
int (*init)(struct hwrng *rng);
void (*cleanup)(struct hwrng *rng);
- int (*data_present)(struct hwrng *rng);
+ int (*data_present)(struct hwrng *rng, int wait);
int (*data_read)(struct hwrng *rng, u32 *data);
unsigned long priv;