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Groups > linux.kernel > #1315868 > unrolled thread

[PATCH 0/26] crypto: Use skcipher and ahash/shash where possible

Started byHerbert Xu <herbert@gondor.apana.org.au>
First post2016-01-24 14:20 +0100
Last post2016-01-25 07:50 +0100
Articles 20 on this page of 40 — 8 participants

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Contents

  [PATCH 0/26] crypto: Use skcipher and ahash/shash where possible Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 8/26] cifs: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 11/26] f2fs: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 13/26] lib80211: Use skcipher and ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 1/26] block: cryptoloop - Use new skcipher interface Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
      Re: [PATCH 1/26] block: cryptoloop - Use new skcipher interface kbuild test robot <lkp@intel.com> - 2016-01-24 14:40 +0100
        Re: [PATCH 1/26] block: cryptoloop - Use new skcipher interface Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:50 +0100
    [PATCH 16/26] libceph: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
      Re: [PATCH 16/26] libceph: Use skcipher Ilya Dryomov <idryomov@gmail.com> - 2016-01-25 17:20 +0100
        Re: [PATCH 16/26] libceph: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-26 12:00 +0100
          Re: [PATCH 16/26] libceph: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-26 12:40 +0100
          Re: [PATCH 16/26] libceph: Use skcipher Ilya Dryomov <idryomov@gmail.com> - 2016-01-26 12:40 +0100
    [PATCH 14/26] KEYS: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 6/26] staging: rtl8192u: Use skcipher and ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
      Re: [PATCH 6/26] staging: rtl8192u: Use skcipher and ahash Greg KH <greg@kroah.com> - 2016-01-24 21:10 +0100
    [PATCH 3/26] staging: rtl8192e: Replace uses of obsolete blkcipher and hash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
      Re: [PATCH 3/26] staging: rtl8192e: Replace uses of obsolete  blkcipher and hash Greg KH <greg@kroah.com> - 2016-01-24 21:10 +0100
    [PATCH 5/26] orinoco: Use ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:20 +0100
    [PATCH 24/26] nfsd: Use shash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
    [PATCH 25/26] sctp: Use shash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 25/26] sctp: Use shash David Miller <davem@davemloft.net> - 2016-01-25 07:10 +0100
    [PATCH 10/26] ext4: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
    [PATCH 18/26] rxrpc: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
    [PATCH 17/26] mac802154: Use skcipher Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 17/26] mac802154: Use skcipher Stefan Schmidt <stefan@osg.samsung.com> - 2016-01-26 18:00 +0100
    [PATCH 4/26] dm crypt: Use skcipher and ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 4/26] dm crypt: Use skcipher and ahash kbuild test robot <lkp@intel.com> - 2016-01-24 14:50 +0100
    [PATCH 22/26] iscsi_tcp: Use ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [dm-devel] [PATCH 22/26] iscsi_tcp: Use ahash Mike Christie <michaelc@cs.wisc.edu> - 2016-01-25 21:00 +0100
    [PATCH 26/26] tcp: Use ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 26/26] tcp: Use ahash David Miller <davem@davemloft.net> - 2016-01-25 07:10 +0100
    [PATCH 23/26] iscsi-target: Use shash and ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
    [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 19/26] ipsec: Use skcipher and ahash when probing  algorithms kbuild test robot <lkp@intel.com> - 2016-01-24 14:50 +0100
      Re: [PATCH 19/26] ipsec: Use skcipher and ahash when probing  algorithms David Miller <davem@davemloft.net> - 2016-01-25 07:10 +0100
    [PATCH 20/26] drbd: Use shash and ahash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
    [PATCH 21/26] nfc: s3fwrn5: Use shash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 21/26] nfc: s3fwrn5: Use shash kbuild test robot <lkp@intel.com> - 2016-01-24 15:00 +0100
    [PATCH 15/26] Bluetooth: Use skcipher and hash Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-24 14:30 +0100
      Re: [PATCH 15/26] Bluetooth: Use skcipher and hash Marcel Holtmann <marcel@holtmann.org> - 2016-01-25 07:50 +0100

Page 2 of 2 — ← Prev page 1 [2]


#1316229 — Re: [PATCH 25/26] sctp: Use shash

FromDavid Miller <davem@davemloft.net>
Date2016-01-25 07:10 +0100
SubjectRe: [PATCH 25/26] sctp: Use shash
Message-ID<qUIvF-8bt-21@gated-at.bofh.it>
In reply to#1315880
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 24 Jan 2016 21:20:12 +0800

> This patch replaces uses of the long obsolete hash interface with
> shash.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Acked-by: David S. Miller <davem@davemloft.net>

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#1315881 — [PATCH 10/26] ext4: Use skcipher

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 10/26] ext4: Use skcipher
Message-ID<qUsTU-5op-9@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of ablkcipher with skcipher.
   
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 fs/ext4/crypto.c       |   24 +++++++++++-------------
 fs/ext4/crypto_fname.c |   32 +++++++++++++++-----------------
 fs/ext4/crypto_key.c   |   42 ++++++++++++++++++++----------------------
 fs/ext4/ext4_crypto.h  |    2 +-
 4 files changed, 47 insertions(+), 53 deletions(-)

diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index 1a08350..a052c2a 100644
--- a/fs/ext4/crypto.c
+++ b/fs/ext4/crypto.c
@@ -18,11 +18,9 @@
  * Special Publication 800-38E and IEEE P1619/D16.
  */
 
-#include <crypto/hash.h>
-#include <crypto/sha.h>
+#include <crypto/skcipher.h>
 #include <keys/user-type.h>
 #include <keys/encrypted-type.h>
-#include <linux/crypto.h>
 #include <linux/ecryptfs.h>
 #include <linux/gfp.h>
 #include <linux/kernel.h>
@@ -261,21 +259,21 @@ static int ext4_page_crypto(struct inode *inode,
 
 {
 	u8 xts_tweak[EXT4_XTS_TWEAK_SIZE];
-	struct ablkcipher_request *req = NULL;
+	struct skcipher_request *req = NULL;
 	DECLARE_EXT4_COMPLETION_RESULT(ecr);
 	struct scatterlist dst, src;
 	struct ext4_crypt_info *ci = EXT4_I(inode)->i_crypt_info;
-	struct crypto_ablkcipher *tfm = ci->ci_ctfm;
+	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 
-	req = ablkcipher_request_alloc(tfm, GFP_NOFS);
+	req = skcipher_request_alloc(tfm, GFP_NOFS);
 	if (!req) {
 		printk_ratelimited(KERN_ERR
 				   "%s: crypto_request_alloc() failed\n",
 				   __func__);
 		return -ENOMEM;
 	}
-	ablkcipher_request_set_callback(
+	skcipher_request_set_callback(
 		req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
 		ext4_crypt_complete, &ecr);
 
@@ -288,21 +286,21 @@ static int ext4_page_crypto(struct inode *inode,
 	sg_set_page(&dst, dest_page, PAGE_CACHE_SIZE, 0);
 	sg_init_table(&src, 1);
 	sg_set_page(&src, src_page, PAGE_CACHE_SIZE, 0);
-	ablkcipher_request_set_crypt(req, &src, &dst, PAGE_CACHE_SIZE,
-				     xts_tweak);
+	skcipher_request_set_crypt(req, &src, &dst, PAGE_CACHE_SIZE,
+				   xts_tweak);
 	if (rw == EXT4_DECRYPT)
-		res = crypto_ablkcipher_decrypt(req);
+		res = crypto_skcipher_decrypt(req);
 	else
-		res = crypto_ablkcipher_encrypt(req);
+		res = crypto_skcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
-	ablkcipher_request_free(req);
+	skcipher_request_free(req);
 	if (res) {
 		printk_ratelimited(
 			KERN_ERR
-			"%s: crypto_ablkcipher_encrypt() returned %d\n",
+			"%s: crypto_skcipher_encrypt() returned %d\n",
 			__func__, res);
 		return res;
 	}
diff --git a/fs/ext4/crypto_fname.c b/fs/ext4/crypto_fname.c
index 2fbef8a..1a2f360 100644
--- a/fs/ext4/crypto_fname.c
+++ b/fs/ext4/crypto_fname.c
@@ -11,11 +11,9 @@
  *
  */
 
-#include <crypto/hash.h>
-#include <crypto/sha.h>
+#include <crypto/skcipher.h>
 #include <keys/encrypted-type.h>
 #include <keys/user-type.h>
-#include <linux/crypto.h>
 #include <linux/gfp.h>
 #include <linux/kernel.h>
 #include <linux/key.h>
@@ -65,10 +63,10 @@ static int ext4_fname_encrypt(struct inode *inode,
 			      struct ext4_str *oname)
 {
 	u32 ciphertext_len;
-	struct ablkcipher_request *req = NULL;
+	struct skcipher_request *req = NULL;
 	DECLARE_EXT4_COMPLETION_RESULT(ecr);
 	struct ext4_crypt_info *ci = EXT4_I(inode)->i_crypt_info;
-	struct crypto_ablkcipher *tfm = ci->ci_ctfm;
+	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 	char iv[EXT4_CRYPTO_BLOCK_SIZE];
 	struct scatterlist src_sg, dst_sg;
@@ -95,14 +93,14 @@ static int ext4_fname_encrypt(struct inode *inode,
 	}
 
 	/* Allocate request */
-	req = ablkcipher_request_alloc(tfm, GFP_NOFS);
+	req = skcipher_request_alloc(tfm, GFP_NOFS);
 	if (!req) {
 		printk_ratelimited(
 		    KERN_ERR "%s: crypto_request_alloc() failed\n", __func__);
 		kfree(alloc_buf);
 		return -ENOMEM;
 	}
-	ablkcipher_request_set_callback(req,
+	skcipher_request_set_callback(req,
 		CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
 		ext4_dir_crypt_complete, &ecr);
 
@@ -117,14 +115,14 @@ static int ext4_fname_encrypt(struct inode *inode,
 	/* Create encryption request */
 	sg_init_one(&src_sg, workbuf, ciphertext_len);
 	sg_init_one(&dst_sg, oname->name, ciphertext_len);
-	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, ciphertext_len, iv);
-	res = crypto_ablkcipher_encrypt(req);
+	skcipher_request_set_crypt(req, &src_sg, &dst_sg, ciphertext_len, iv);
+	res = crypto_skcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
 	kfree(alloc_buf);
-	ablkcipher_request_free(req);
+	skcipher_request_free(req);
 	if (res < 0) {
 		printk_ratelimited(
 		    KERN_ERR "%s: Error (error code %d)\n", __func__, res);
@@ -145,11 +143,11 @@ static int ext4_fname_decrypt(struct inode *inode,
 			      struct ext4_str *oname)
 {
 	struct ext4_str tmp_in[2], tmp_out[1];
-	struct ablkcipher_request *req = NULL;
+	struct skcipher_request *req = NULL;
 	DECLARE_EXT4_COMPLETION_RESULT(ecr);
 	struct scatterlist src_sg, dst_sg;
 	struct ext4_crypt_info *ci = EXT4_I(inode)->i_crypt_info;
-	struct crypto_ablkcipher *tfm = ci->ci_ctfm;
+	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 	char iv[EXT4_CRYPTO_BLOCK_SIZE];
 	unsigned lim = max_name_len(inode);
@@ -162,13 +160,13 @@ static int ext4_fname_decrypt(struct inode *inode,
 	tmp_out[0].name = oname->name;
 
 	/* Allocate request */
-	req = ablkcipher_request_alloc(tfm, GFP_NOFS);
+	req = skcipher_request_alloc(tfm, GFP_NOFS);
 	if (!req) {
 		printk_ratelimited(
 		    KERN_ERR "%s: crypto_request_alloc() failed\n",  __func__);
 		return -ENOMEM;
 	}
-	ablkcipher_request_set_callback(req,
+	skcipher_request_set_callback(req,
 		CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
 		ext4_dir_crypt_complete, &ecr);
 
@@ -178,13 +176,13 @@ static int ext4_fname_decrypt(struct inode *inode,
 	/* Create encryption request */
 	sg_init_one(&src_sg, iname->name, iname->len);
 	sg_init_one(&dst_sg, oname->name, oname->len);
-	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
-	res = crypto_ablkcipher_decrypt(req);
+	skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
+	res = crypto_skcipher_decrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
-	ablkcipher_request_free(req);
+	skcipher_request_free(req);
 	if (res < 0) {
 		printk_ratelimited(
 		    KERN_ERR "%s: Error in ext4_fname_encrypt (error code %d)\n",
diff --git a/fs/ext4/crypto_key.c b/fs/ext4/crypto_key.c
index c5882b3..1b8bdbb 100644
--- a/fs/ext4/crypto_key.c
+++ b/fs/ext4/crypto_key.c
@@ -8,6 +8,7 @@
  * Written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar, 2015.
  */
 
+#include <crypto/skcipher.h>
 #include <keys/encrypted-type.h>
 #include <keys/user-type.h>
 #include <linux/random.h>
@@ -41,45 +42,42 @@ static int ext4_derive_key_aes(char deriving_key[EXT4_AES_128_ECB_KEY_SIZE],
 			       char derived_key[EXT4_AES_256_XTS_KEY_SIZE])
 {
 	int res = 0;
-	struct ablkcipher_request *req = NULL;
+	struct skcipher_request *req = NULL;
 	DECLARE_EXT4_COMPLETION_RESULT(ecr);
 	struct scatterlist src_sg, dst_sg;
-	struct crypto_ablkcipher *tfm = crypto_alloc_ablkcipher("ecb(aes)", 0,
-								0);
+	struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0);
 
 	if (IS_ERR(tfm)) {
 		res = PTR_ERR(tfm);
 		tfm = NULL;
 		goto out;
 	}
-	crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
-	req = ablkcipher_request_alloc(tfm, GFP_NOFS);
+	crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
+	req = skcipher_request_alloc(tfm, GFP_NOFS);
 	if (!req) {
 		res = -ENOMEM;
 		goto out;
 	}
-	ablkcipher_request_set_callback(req,
+	skcipher_request_set_callback(req,
 			CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
 			derive_crypt_complete, &ecr);
-	res = crypto_ablkcipher_setkey(tfm, deriving_key,
-				       EXT4_AES_128_ECB_KEY_SIZE);
+	res = crypto_skcipher_setkey(tfm, deriving_key,
+				     EXT4_AES_128_ECB_KEY_SIZE);
 	if (res < 0)
 		goto out;
 	sg_init_one(&src_sg, source_key, EXT4_AES_256_XTS_KEY_SIZE);
 	sg_init_one(&dst_sg, derived_key, EXT4_AES_256_XTS_KEY_SIZE);
-	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg,
-				     EXT4_AES_256_XTS_KEY_SIZE, NULL);
-	res = crypto_ablkcipher_encrypt(req);
+	skcipher_request_set_crypt(req, &src_sg, &dst_sg,
+				   EXT4_AES_256_XTS_KEY_SIZE, NULL);
+	res = crypto_skcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
 
 out:
-	if (req)
-		ablkcipher_request_free(req);
-	if (tfm)
-		crypto_free_ablkcipher(tfm);
+	skcipher_request_free(req);
+	crypto_free_skcipher(tfm);
 	return res;
 }
 
@@ -90,7 +88,7 @@ void ext4_free_crypt_info(struct ext4_crypt_info *ci)
 
 	if (ci->ci_keyring_key)
 		key_put(ci->ci_keyring_key);
-	crypto_free_ablkcipher(ci->ci_ctfm);
+	crypto_free_skcipher(ci->ci_ctfm);
 	kmem_cache_free(ext4_crypt_info_cachep, ci);
 }
 
@@ -122,7 +120,7 @@ int _ext4_get_encryption_info(struct inode *inode)
 	struct ext4_encryption_context ctx;
 	const struct user_key_payload *ukp;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
-	struct crypto_ablkcipher *ctfm;
+	struct crypto_skcipher *ctfm;
 	const char *cipher_str;
 	char raw_key[EXT4_MAX_KEY_SIZE];
 	char mode;
@@ -233,7 +231,7 @@ retry:
 	if (res)
 		goto out;
 got_key:
-	ctfm = crypto_alloc_ablkcipher(cipher_str, 0, 0);
+	ctfm = crypto_alloc_skcipher(cipher_str, 0, 0);
 	if (!ctfm || IS_ERR(ctfm)) {
 		res = ctfm ? PTR_ERR(ctfm) : -ENOMEM;
 		printk(KERN_DEBUG
@@ -242,11 +240,11 @@ got_key:
 		goto out;
 	}
 	crypt_info->ci_ctfm = ctfm;
-	crypto_ablkcipher_clear_flags(ctfm, ~0);
-	crypto_tfm_set_flags(crypto_ablkcipher_tfm(ctfm),
+	crypto_skcipher_clear_flags(ctfm, ~0);
+	crypto_tfm_set_flags(crypto_skcipher_tfm(ctfm),
 			     CRYPTO_TFM_REQ_WEAK_KEY);
-	res = crypto_ablkcipher_setkey(ctfm, raw_key,
-				       ext4_encryption_key_size(mode));
+	res = crypto_skcipher_setkey(ctfm, raw_key,
+				     ext4_encryption_key_size(mode));
 	if (res)
 		goto out;
 	memzero_explicit(raw_key, sizeof(raw_key));
diff --git a/fs/ext4/ext4_crypto.h b/fs/ext4/ext4_crypto.h
index ac7d4e8..1f73c29 100644
--- a/fs/ext4/ext4_crypto.h
+++ b/fs/ext4/ext4_crypto.h
@@ -77,7 +77,7 @@ struct ext4_crypt_info {
 	char		ci_data_mode;
 	char		ci_filename_mode;
 	char		ci_flags;
-	struct crypto_ablkcipher *ci_ctfm;
+	struct crypto_skcipher *ci_ctfm;
 	struct key	*ci_keyring_key;
 	char		ci_master_key[EXT4_KEY_DESCRIPTOR_SIZE];
 };

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#1315882 — [PATCH 18/26] rxrpc: Use skcipher

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 18/26] rxrpc: Use skcipher
Message-ID<qUsTU-5op-11@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of blkcipher with skcipher.
   
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 net/rxrpc/ar-internal.h |    2 
 net/rxrpc/ar-key.c      |   12 +--
 net/rxrpc/rxkad.c       |  172 +++++++++++++++++++++++++++++-------------------
 3 files changed, 114 insertions(+), 72 deletions(-)

diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 2934a73..71598f5 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -252,7 +252,7 @@ struct rxrpc_connection {
 	struct rxrpc_security	*security;	/* applied security module */
 	struct key		*key;		/* security for this connection (client) */
 	struct key		*server_key;	/* security for this service */
-	struct crypto_blkcipher	*cipher;	/* encryption handle */
+	struct crypto_skcipher	*cipher;	/* encryption handle */
 	struct rxrpc_crypt	csum_iv;	/* packet checksum base */
 	unsigned long		events;
 #define RXRPC_CONN_CHALLENGE	0		/* send challenge packet */
diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c
index 3f65716..3fb492e 100644
--- a/net/rxrpc/ar-key.c
+++ b/net/rxrpc/ar-key.c
@@ -12,11 +12,11 @@
  *	"afs@CAMBRIDGE.REDHAT.COM>
  */
 
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/net.h>
 #include <linux/skbuff.h>
 #include <linux/key-type.h>
-#include <linux/crypto.h>
 #include <linux/ctype.h>
 #include <linux/slab.h>
 #include <net/sock.h>
@@ -824,7 +824,7 @@ static void rxrpc_free_preparse(struct key_preparsed_payload *prep)
  */
 static int rxrpc_preparse_s(struct key_preparsed_payload *prep)
 {
-	struct crypto_blkcipher *ci;
+	struct crypto_skcipher *ci;
 
 	_enter("%zu", prep->datalen);
 
@@ -833,13 +833,13 @@ static int rxrpc_preparse_s(struct key_preparsed_payload *prep)
 
 	memcpy(&prep->payload.data[2], prep->data, 8);
 
-	ci = crypto_alloc_blkcipher("pcbc(des)", 0, CRYPTO_ALG_ASYNC);
+	ci = crypto_alloc_skcipher("pcbc(des)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(ci)) {
 		_leave(" = %ld", PTR_ERR(ci));
 		return PTR_ERR(ci);
 	}
 
-	if (crypto_blkcipher_setkey(ci, prep->data, 8) < 0)
+	if (crypto_skcipher_setkey(ci, prep->data, 8) < 0)
 		BUG();
 
 	prep->payload.data[0] = ci;
@@ -853,7 +853,7 @@ static int rxrpc_preparse_s(struct key_preparsed_payload *prep)
 static void rxrpc_free_preparse_s(struct key_preparsed_payload *prep)
 {
 	if (prep->payload.data[0])
-		crypto_free_blkcipher(prep->payload.data[0]);
+		crypto_free_skcipher(prep->payload.data[0]);
 }
 
 /*
@@ -870,7 +870,7 @@ static void rxrpc_destroy(struct key *key)
 static void rxrpc_destroy_s(struct key *key)
 {
 	if (key->payload.data[0]) {
-		crypto_free_blkcipher(key->payload.data[0]);
+		crypto_free_skcipher(key->payload.data[0]);
 		key->payload.data[0] = NULL;
 	}
 }
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index d7a9ab5..0d96b48 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -9,11 +9,11 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/net.h>
 #include <linux/skbuff.h>
 #include <linux/udp.h>
-#include <linux/crypto.h>
 #include <linux/scatterlist.h>
 #include <linux/ctype.h>
 #include <linux/slab.h>
@@ -53,7 +53,7 @@ MODULE_LICENSE("GPL");
  * alloc routine, but since we have it to hand, we use it to decrypt RESPONSE
  * packets
  */
-static struct crypto_blkcipher *rxkad_ci;
+static struct crypto_skcipher *rxkad_ci;
 static DEFINE_MUTEX(rxkad_ci_mutex);
 
 /*
@@ -61,7 +61,7 @@ static DEFINE_MUTEX(rxkad_ci_mutex);
  */
 static int rxkad_init_connection_security(struct rxrpc_connection *conn)
 {
-	struct crypto_blkcipher *ci;
+	struct crypto_skcipher *ci;
 	struct rxrpc_key_token *token;
 	int ret;
 
@@ -70,15 +70,15 @@ static int rxkad_init_connection_security(struct rxrpc_connection *conn)
 	token = conn->key->payload.data[0];
 	conn->security_ix = token->security_index;
 
-	ci = crypto_alloc_blkcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
+	ci = crypto_alloc_skcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(ci)) {
 		_debug("no cipher");
 		ret = PTR_ERR(ci);
 		goto error;
 	}
 
-	if (crypto_blkcipher_setkey(ci, token->kad->session_key,
-				    sizeof(token->kad->session_key)) < 0)
+	if (crypto_skcipher_setkey(ci, token->kad->session_key,
+				   sizeof(token->kad->session_key)) < 0)
 		BUG();
 
 	switch (conn->security_level) {
@@ -113,7 +113,7 @@ error:
 static void rxkad_prime_packet_security(struct rxrpc_connection *conn)
 {
 	struct rxrpc_key_token *token;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, conn->cipher);
 	struct scatterlist sg[2];
 	struct rxrpc_crypt iv;
 	struct {
@@ -128,10 +128,6 @@ static void rxkad_prime_packet_security(struct rxrpc_connection *conn)
 	token = conn->key->payload.data[0];
 	memcpy(&iv, token->kad->session_key, sizeof(iv));
 
-	desc.tfm = conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
-
 	tmpbuf.x[0] = conn->epoch;
 	tmpbuf.x[1] = conn->cid;
 	tmpbuf.x[2] = 0;
@@ -139,7 +135,13 @@ static void rxkad_prime_packet_security(struct rxrpc_connection *conn)
 
 	sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
 	sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
-	crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+	skcipher_request_set_tfm(req, conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg[1], &sg[0], sizeof(tmpbuf), iv.x);
+
+	crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 
 	memcpy(&conn->csum_iv, &tmpbuf.x[2], sizeof(conn->csum_iv));
 	ASSERTCMP(conn->csum_iv.n[0], ==, tmpbuf.x[2]);
@@ -156,7 +158,7 @@ static int rxkad_secure_packet_auth(const struct rxrpc_call *call,
 				    void *sechdr)
 {
 	struct rxrpc_skb_priv *sp;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[2];
 	struct {
@@ -177,13 +179,16 @@ static int rxkad_secure_packet_auth(const struct rxrpc_call *call,
 
 	/* start the encryption afresh */
 	memset(&iv, 0, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
 	sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
-	crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg[1], &sg[0], sizeof(tmpbuf), iv.x);
+
+	crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 
 	memcpy(sechdr, &tmpbuf, sizeof(tmpbuf));
 
@@ -203,13 +208,14 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
 	struct rxkad_level2_hdr rxkhdr
 		__attribute__((aligned(8))); /* must be all on one page */
 	struct rxrpc_skb_priv *sp;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[16];
 	struct sk_buff *trailer;
 	unsigned int len;
 	u16 check;
 	int nsg;
+	int err;
 
 	sp = rxrpc_skb(skb);
 
@@ -223,28 +229,38 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
 	/* encrypt from the session key */
 	token = call->conn->key->payload.data[0];
 	memcpy(&iv, token->kad->session_key, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	sg_init_one(&sg[0], sechdr, sizeof(rxkhdr));
 	sg_init_one(&sg[1], &rxkhdr, sizeof(rxkhdr));
-	crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(rxkhdr));
+
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg[1], &sg[0], sizeof(rxkhdr), iv.x);
+
+	crypto_skcipher_encrypt(req);
 
 	/* we want to encrypt the skbuff in-place */
 	nsg = skb_cow_data(skb, 0, &trailer);
+	err = -ENOMEM;
 	if (nsg < 0 || nsg > 16)
-		return -ENOMEM;
+		goto out;
 
 	len = data_size + call->conn->size_align - 1;
 	len &= ~(call->conn->size_align - 1);
 
 	sg_init_table(sg, nsg);
 	skb_to_sgvec(skb, sg, 0, len);
-	crypto_blkcipher_encrypt_iv(&desc, sg, sg, len);
+
+	skcipher_request_set_crypt(req, sg, sg, len, iv.x);
+
+	crypto_skcipher_encrypt(req);
 
 	_leave(" = 0");
-	return 0;
+	err = 0;
+
+out:
+	skcipher_request_zero(req);
+	return err;
 }
 
 /*
@@ -256,7 +272,7 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
 				void *sechdr)
 {
 	struct rxrpc_skb_priv *sp;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[2];
 	struct {
@@ -281,9 +297,6 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
 
 	/* continue encrypting from where we left off */
 	memcpy(&iv, call->conn->csum_iv.x, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	/* calculate the security checksum */
 	x = htonl(call->channel << (32 - RXRPC_CIDSHIFT));
@@ -293,7 +306,13 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
 
 	sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
 	sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
-	crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg[1], &sg[0], sizeof(tmpbuf), iv.x);
+
+	crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 
 	y = ntohl(tmpbuf.x[1]);
 	y = (y >> 16) & 0xffff;
@@ -330,7 +349,7 @@ static int rxkad_verify_packet_auth(const struct rxrpc_call *call,
 {
 	struct rxkad_level1_hdr sechdr;
 	struct rxrpc_skb_priv *sp;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[16];
 	struct sk_buff *trailer;
@@ -352,11 +371,13 @@ static int rxkad_verify_packet_auth(const struct rxrpc_call *call,
 
 	/* start the decryption afresh */
 	memset(&iv, 0, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
-	crypto_blkcipher_decrypt_iv(&desc, sg, sg, 8);
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, sg, sg, 8, iv.x);
+
+	crypto_skcipher_decrypt(req);
+	skcipher_request_zero(req);
 
 	/* remove the decrypted packet length */
 	if (skb_copy_bits(skb, 0, &sechdr, sizeof(sechdr)) < 0)
@@ -405,7 +426,7 @@ static int rxkad_verify_packet_encrypt(const struct rxrpc_call *call,
 	const struct rxrpc_key_token *token;
 	struct rxkad_level2_hdr sechdr;
 	struct rxrpc_skb_priv *sp;
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist _sg[4], *sg;
 	struct sk_buff *trailer;
@@ -435,11 +456,13 @@ static int rxkad_verify_packet_encrypt(const struct rxrpc_call *call,
 	/* decrypt from the session key */
 	token = call->conn->key->payload.data[0];
 	memcpy(&iv, token->kad->session_key, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
-	crypto_blkcipher_decrypt_iv(&desc, sg, sg, skb->len);
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, sg, sg, skb->len, iv.x);
+
+	crypto_skcipher_decrypt(req);
+	skcipher_request_zero(req);
 	if (sg != _sg)
 		kfree(sg);
 
@@ -487,7 +510,7 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
 			       struct sk_buff *skb,
 			       u32 *_abort_code)
 {
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, call->conn->cipher);
 	struct rxrpc_skb_priv *sp;
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[2];
@@ -516,9 +539,6 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
 
 	/* continue encrypting from where we left off */
 	memcpy(&iv, call->conn->csum_iv.x, sizeof(iv));
-	desc.tfm = call->conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	/* validate the security checksum */
 	x = htonl(call->channel << (32 - RXRPC_CIDSHIFT));
@@ -528,7 +548,13 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
 
 	sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
 	sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
-	crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+	skcipher_request_set_tfm(req, call->conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg[1], &sg[0], sizeof(tmpbuf), iv.x);
+
+	crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 
 	y = ntohl(tmpbuf.x[1]);
 	y = (y >> 16) & 0xffff;
@@ -718,18 +744,21 @@ static void rxkad_encrypt_response(struct rxrpc_connection *conn,
 				   struct rxkad_response *resp,
 				   const struct rxkad_key *s2)
 {
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, conn->cipher);
 	struct rxrpc_crypt iv;
 	struct scatterlist sg[2];
 
 	/* continue encrypting from where we left off */
 	memcpy(&iv, s2->session_key, sizeof(iv));
-	desc.tfm = conn->cipher;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	rxkad_sg_set_buf2(sg, &resp->encrypted, sizeof(resp->encrypted));
-	crypto_blkcipher_encrypt_iv(&desc, sg, sg, sizeof(resp->encrypted));
+
+	skcipher_request_set_tfm(req, conn->cipher);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, sg, sg, sizeof(resp->encrypted), iv.x);
+
+	crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 }
 
 /*
@@ -822,7 +851,7 @@ static int rxkad_decrypt_ticket(struct rxrpc_connection *conn,
 				time_t *_expiry,
 				u32 *_abort_code)
 {
-	struct blkcipher_desc desc;
+	struct skcipher_request *req;
 	struct rxrpc_crypt iv, key;
 	struct scatterlist sg[1];
 	struct in_addr addr;
@@ -853,12 +882,21 @@ static int rxkad_decrypt_ticket(struct rxrpc_connection *conn,
 
 	memcpy(&iv, &conn->server_key->payload.data[2], sizeof(iv));
 
-	desc.tfm = conn->server_key->payload.data[0];
-	desc.info = iv.x;
-	desc.flags = 0;
+	req = skcipher_request_alloc(conn->server_key->payload.data[0],
+				     GFP_NOFS);
+	if (!req) {
+		*_abort_code = RXKADNOAUTH;
+		ret = -ENOMEM;
+		goto error;
+	}
 
 	sg_init_one(&sg[0], ticket, ticket_len);
-	crypto_blkcipher_decrypt_iv(&desc, sg, sg, ticket_len);
+
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, sg, sg, ticket_len, iv.x);
+
+	crypto_skcipher_decrypt(req);
+	skcipher_request_free(req);
 
 	p = ticket;
 	end = p + ticket_len;
@@ -966,7 +1004,7 @@ static void rxkad_decrypt_response(struct rxrpc_connection *conn,
 				   struct rxkad_response *resp,
 				   const struct rxrpc_crypt *session_key)
 {
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, rxkad_ci);
 	struct scatterlist sg[2];
 	struct rxrpc_crypt iv;
 
@@ -976,17 +1014,21 @@ static void rxkad_decrypt_response(struct rxrpc_connection *conn,
 	ASSERT(rxkad_ci != NULL);
 
 	mutex_lock(&rxkad_ci_mutex);
-	if (crypto_blkcipher_setkey(rxkad_ci, session_key->x,
-				    sizeof(*session_key)) < 0)
+	if (crypto_skcipher_setkey(rxkad_ci, session_key->x,
+				   sizeof(*session_key)) < 0)
 		BUG();
 
 	memcpy(&iv, session_key, sizeof(iv));
-	desc.tfm = rxkad_ci;
-	desc.info = iv.x;
-	desc.flags = 0;
 
 	rxkad_sg_set_buf2(sg, &resp->encrypted, sizeof(resp->encrypted));
-	crypto_blkcipher_decrypt_iv(&desc, sg, sg, sizeof(resp->encrypted));
+
+	skcipher_request_set_tfm(req, rxkad_ci);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, sg, sg, sizeof(resp->encrypted), iv.x);
+
+	crypto_skcipher_decrypt(req);
+	skcipher_request_zero(req);
+
 	mutex_unlock(&rxkad_ci_mutex);
 
 	_leave("");
@@ -1115,7 +1157,7 @@ static void rxkad_clear(struct rxrpc_connection *conn)
 	_enter("");
 
 	if (conn->cipher)
-		crypto_free_blkcipher(conn->cipher);
+		crypto_free_skcipher(conn->cipher);
 }
 
 /*
@@ -1141,7 +1183,7 @@ static __init int rxkad_init(void)
 
 	/* pin the cipher we need so that the crypto layer doesn't invoke
 	 * keventd to go get it */
-	rxkad_ci = crypto_alloc_blkcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
+	rxkad_ci = crypto_alloc_skcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(rxkad_ci))
 		return PTR_ERR(rxkad_ci);
 
@@ -1155,7 +1197,7 @@ static __exit void rxkad_exit(void)
 	_enter("");
 
 	rxrpc_unregister_security(&rxkad);
-	crypto_free_blkcipher(rxkad_ci);
+	crypto_free_skcipher(rxkad_ci);
 }
 
 module_exit(rxkad_exit);

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#1315883 — [PATCH 17/26] mac802154: Use skcipher

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 17/26] mac802154: Use skcipher
Message-ID<qUsTU-5op-15@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of blkcipher with skcipher.
   
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 net/mac802154/llsec.c |   41 +++++++++++++++++++++++------------------
 net/mac802154/llsec.h |    3 +--
 2 files changed, 24 insertions(+), 20 deletions(-)

diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index a13d02b..6a3e1c2 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -17,9 +17,9 @@
 #include <linux/err.h>
 #include <linux/bug.h>
 #include <linux/completion.h>
-#include <linux/crypto.h>
 #include <linux/ieee802154.h>
 #include <crypto/aead.h>
+#include <crypto/skcipher.h>
 
 #include "ieee802154_i.h"
 #include "llsec.h"
@@ -144,18 +144,18 @@ llsec_key_alloc(const struct ieee802154_llsec_key *template)
 			goto err_tfm;
 	}
 
-	key->tfm0 = crypto_alloc_blkcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
+	key->tfm0 = crypto_alloc_skcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(key->tfm0))
 		goto err_tfm;
 
-	if (crypto_blkcipher_setkey(key->tfm0, template->key,
-				    IEEE802154_LLSEC_KEY_SIZE))
+	if (crypto_skcipher_setkey(key->tfm0, template->key,
+				   IEEE802154_LLSEC_KEY_SIZE))
 		goto err_tfm0;
 
 	return key;
 
 err_tfm0:
-	crypto_free_blkcipher(key->tfm0);
+	crypto_free_skcipher(key->tfm0);
 err_tfm:
 	for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
 		if (key->tfm[i])
@@ -175,7 +175,7 @@ static void llsec_key_release(struct kref *ref)
 	for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
 		crypto_free_aead(key->tfm[i]);
 
-	crypto_free_blkcipher(key->tfm0);
+	crypto_free_skcipher(key->tfm0);
 	kzfree(key);
 }
 
@@ -620,15 +620,17 @@ llsec_do_encrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
 {
 	u8 iv[16];
 	struct scatterlist src;
-	struct blkcipher_desc req = {
-		.tfm = key->tfm0,
-		.info = iv,
-		.flags = 0,
-	};
+	SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
+	int err;
 
 	llsec_geniv(iv, sec->params.hwaddr, &hdr->sec);
 	sg_init_one(&src, skb->data, skb->len);
-	return crypto_blkcipher_encrypt_iv(&req, &src, &src, skb->len);
+	skcipher_request_set_tfm(req, key->tfm0);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &src, &src, skb->len, iv);
+	err = crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
+	return err;
 }
 
 static struct crypto_aead*
@@ -830,11 +832,8 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
 	unsigned char *data;
 	int datalen;
 	struct scatterlist src;
-	struct blkcipher_desc req = {
-		.tfm = key->tfm0,
-		.info = iv,
-		.flags = 0,
-	};
+	SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
+	int err;
 
 	llsec_geniv(iv, dev_addr, &hdr->sec);
 	data = skb_mac_header(skb) + skb->mac_len;
@@ -842,7 +841,13 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
 
 	sg_init_one(&src, data, datalen);
 
-	return crypto_blkcipher_decrypt_iv(&req, &src, &src, datalen);
+	skcipher_request_set_tfm(req, key->tfm0);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &src, &src, datalen, iv);
+
+	err = crypto_skcipher_decrypt(req);
+	skcipher_request_zero(req);
+	return err;
 }
 
 static int
diff --git a/net/mac802154/llsec.h b/net/mac802154/llsec.h
index 950578e..6f3b658 100644
--- a/net/mac802154/llsec.h
+++ b/net/mac802154/llsec.h
@@ -19,7 +19,6 @@
 
 #include <linux/slab.h>
 #include <linux/hashtable.h>
-#include <linux/crypto.h>
 #include <linux/kref.h>
 #include <linux/spinlock.h>
 #include <net/af_ieee802154.h>
@@ -30,7 +29,7 @@ struct mac802154_llsec_key {
 
 	/* one tfm for each authsize (4/8/16) */
 	struct crypto_aead *tfm[3];
-	struct crypto_blkcipher *tfm0;
+	struct crypto_skcipher *tfm0;
 
 	struct kref ref;
 };

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#1318138 — Re: [PATCH 17/26] mac802154: Use skcipher

FromStefan Schmidt <stefan@osg.samsung.com>
Date2016-01-26 18:00 +0100
SubjectRe: [PATCH 17/26] mac802154: Use skcipher
Message-ID<qVf8f-6St-11@gated-at.bofh.it>
In reply to#1315883
Hello.

On 24/01/16 14:18, Herbert Xu wrote:
> This patch replaces uses of blkcipher with skcipher.
>     
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
> ---
>
>   net/mac802154/llsec.c |   41 +++++++++++++++++++++++------------------
>   net/mac802154/llsec.h |    3 +--
>   2 files changed, 24 insertions(+), 20 deletions(-)
>
> diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
> index a13d02b..6a3e1c2 100644
> --- a/net/mac802154/llsec.c
> +++ b/net/mac802154/llsec.c
> @@ -17,9 +17,9 @@
>   #include <linux/err.h>
>   #include <linux/bug.h>
>   #include <linux/completion.h>
> -#include <linux/crypto.h>
>   #include <linux/ieee802154.h>
>   #include <crypto/aead.h>
> +#include <crypto/skcipher.h>
>   
>   #include "ieee802154_i.h"
>   #include "llsec.h"
> @@ -144,18 +144,18 @@ llsec_key_alloc(const struct ieee802154_llsec_key *template)
>   			goto err_tfm;
>   	}
>   
> -	key->tfm0 = crypto_alloc_blkcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
> +	key->tfm0 = crypto_alloc_skcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
>   	if (IS_ERR(key->tfm0))
>   		goto err_tfm;
>   
> -	if (crypto_blkcipher_setkey(key->tfm0, template->key,
> -				    IEEE802154_LLSEC_KEY_SIZE))
> +	if (crypto_skcipher_setkey(key->tfm0, template->key,
> +				   IEEE802154_LLSEC_KEY_SIZE))
>   		goto err_tfm0;
>   
>   	return key;
>   
>   err_tfm0:
> -	crypto_free_blkcipher(key->tfm0);
> +	crypto_free_skcipher(key->tfm0);
>   err_tfm:
>   	for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
>   		if (key->tfm[i])
> @@ -175,7 +175,7 @@ static void llsec_key_release(struct kref *ref)
>   	for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
>   		crypto_free_aead(key->tfm[i]);
>   
> -	crypto_free_blkcipher(key->tfm0);
> +	crypto_free_skcipher(key->tfm0);
>   	kzfree(key);
>   }
>   
> @@ -620,15 +620,17 @@ llsec_do_encrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
>   {
>   	u8 iv[16];
>   	struct scatterlist src;
> -	struct blkcipher_desc req = {
> -		.tfm = key->tfm0,
> -		.info = iv,
> -		.flags = 0,
> -	};
> +	SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
> +	int err;
>   
>   	llsec_geniv(iv, sec->params.hwaddr, &hdr->sec);
>   	sg_init_one(&src, skb->data, skb->len);
> -	return crypto_blkcipher_encrypt_iv(&req, &src, &src, skb->len);
> +	skcipher_request_set_tfm(req, key->tfm0);
> +	skcipher_request_set_callback(req, 0, NULL, NULL);
> +	skcipher_request_set_crypt(req, &src, &src, skb->len, iv);
> +	err = crypto_skcipher_encrypt(req);
> +	skcipher_request_zero(req);
> +	return err;
>   }
>   
>   static struct crypto_aead*
> @@ -830,11 +832,8 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
>   	unsigned char *data;
>   	int datalen;
>   	struct scatterlist src;
> -	struct blkcipher_desc req = {
> -		.tfm = key->tfm0,
> -		.info = iv,
> -		.flags = 0,
> -	};
> +	SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
> +	int err;
>   
>   	llsec_geniv(iv, dev_addr, &hdr->sec);
>   	data = skb_mac_header(skb) + skb->mac_len;
> @@ -842,7 +841,13 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
>   
>   	sg_init_one(&src, data, datalen);
>   
> -	return crypto_blkcipher_decrypt_iv(&req, &src, &src, datalen);
> +	skcipher_request_set_tfm(req, key->tfm0);
> +	skcipher_request_set_callback(req, 0, NULL, NULL);
> +	skcipher_request_set_crypt(req, &src, &src, datalen, iv);
> +
> +	err = crypto_skcipher_decrypt(req);
> +	skcipher_request_zero(req);
> +	return err;
>   }
>   
>   static int
> diff --git a/net/mac802154/llsec.h b/net/mac802154/llsec.h
> index 950578e..6f3b658 100644
> --- a/net/mac802154/llsec.h
> +++ b/net/mac802154/llsec.h
> @@ -19,7 +19,6 @@
>   
>   #include <linux/slab.h>
>   #include <linux/hashtable.h>
> -#include <linux/crypto.h>
>   #include <linux/kref.h>
>   #include <linux/spinlock.h>
>   #include <net/af_ieee802154.h>
> @@ -30,7 +29,7 @@ struct mac802154_llsec_key {
>   
>   	/* one tfm for each authsize (4/8/16) */
>   	struct crypto_aead *tfm[3];
> -	struct crypto_blkcipher *tfm0;
> +	struct crypto_skcipher *tfm0;
>   
>   	struct kref ref;
>   };

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>

regards
Stefan Schmidt

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#1315884 — [PATCH 4/26] dm crypt: Use skcipher and ahash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 4/26] dm crypt: Use skcipher and ahash
Message-ID<qUsTU-5op-23@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of ablkcipher with skcipher, and the long
obsolete hash interface with ahash.
    
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 drivers/md/dm-crypt.c |   93 +++++++++++++++++++++++++-------------------------
 1 file changed, 48 insertions(+), 45 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3147c8d..06a4e3c 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -28,6 +28,7 @@
 #include <crypto/hash.h>
 #include <crypto/md5.h>
 #include <crypto/algapi.h>
+#include <crypto/skcipher.h>
 
 #include <linux/device-mapper.h>
 
@@ -44,7 +45,7 @@ struct convert_context {
 	struct bvec_iter iter_out;
 	sector_t cc_sector;
 	atomic_t cc_pending;
-	struct ablkcipher_request *req;
+	struct skcipher_request *req;
 };
 
 /*
@@ -86,7 +87,7 @@ struct crypt_iv_operations {
 };
 
 struct iv_essiv_private {
-	struct crypto_hash *hash_tfm;
+	struct crypto_ahash *hash_tfm;
 	u8 *salt;
 };
 
@@ -153,13 +154,13 @@ struct crypt_config {
 
 	/* ESSIV: struct crypto_cipher *essiv_tfm */
 	void *iv_private;
-	struct crypto_ablkcipher **tfms;
+	struct crypto_skcipher **tfms;
 	unsigned tfms_count;
 
 	/*
 	 * Layout of each crypto request:
 	 *
-	 *   struct ablkcipher_request
+	 *   struct skcipher_request
 	 *      context
 	 *      padding
 	 *   struct dm_crypt_request
@@ -189,7 +190,7 @@ static u8 *iv_of_dmreq(struct crypt_config *cc, struct dm_crypt_request *dmreq);
 /*
  * Use this to access cipher attributes that are the same for each CPU.
  */
-static struct crypto_ablkcipher *any_tfm(struct crypt_config *cc)
+static struct crypto_skcipher *any_tfm(struct crypt_config *cc)
 {
 	return cc->tfms[0];
 }
@@ -263,23 +264,25 @@ static int crypt_iv_plain64_gen(struct crypt_config *cc, u8 *iv,
 static int crypt_iv_essiv_init(struct crypt_config *cc)
 {
 	struct iv_essiv_private *essiv = &cc->iv_gen_private.essiv;
-	struct hash_desc desc;
+	AHASH_REQUEST_ON_STACK(req, essiv->hash_tfm);
 	struct scatterlist sg;
 	struct crypto_cipher *essiv_tfm;
 	int err;
 
 	sg_init_one(&sg, cc->key, cc->key_size);
-	desc.tfm = essiv->hash_tfm;
-	desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_tfm(req, essiv->hash_tfm);
+	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP, NULL, NULL);
+	ahash_request_set_crypt(req, &sg, essiv->salt, cc->key_size);
 
-	err = crypto_hash_digest(&desc, &sg, cc->key_size, essiv->salt);
+	err = crypto_ahash_digest(req);
+	ahash_request_zero(req);
 	if (err)
 		return err;
 
 	essiv_tfm = cc->iv_private;
 
 	err = crypto_cipher_setkey(essiv_tfm, essiv->salt,
-			    crypto_hash_digestsize(essiv->hash_tfm));
+			    crypto_ahash_digestsize(essiv->hash_tfm));
 	if (err)
 		return err;
 
@@ -290,7 +293,7 @@ static int crypt_iv_essiv_init(struct crypt_config *cc)
 static int crypt_iv_essiv_wipe(struct crypt_config *cc)
 {
 	struct iv_essiv_private *essiv = &cc->iv_gen_private.essiv;
-	unsigned salt_size = crypto_hash_digestsize(essiv->hash_tfm);
+	unsigned salt_size = crypto_ahash_digestsize(essiv->hash_tfm);
 	struct crypto_cipher *essiv_tfm;
 	int r, err = 0;
 
@@ -320,7 +323,7 @@ static struct crypto_cipher *setup_essiv_cpu(struct crypt_config *cc,
 	}
 
 	if (crypto_cipher_blocksize(essiv_tfm) !=
-	    crypto_ablkcipher_ivsize(any_tfm(cc))) {
+	    crypto_skcipher_ivsize(any_tfm(cc))) {
 		ti->error = "Block size of ESSIV cipher does "
 			    "not match IV size of block cipher";
 		crypto_free_cipher(essiv_tfm);
@@ -342,7 +345,7 @@ static void crypt_iv_essiv_dtr(struct crypt_config *cc)
 	struct crypto_cipher *essiv_tfm;
 	struct iv_essiv_private *essiv = &cc->iv_gen_private.essiv;
 
-	crypto_free_hash(essiv->hash_tfm);
+	crypto_free_ahash(essiv->hash_tfm);
 	essiv->hash_tfm = NULL;
 
 	kzfree(essiv->salt);
@@ -360,7 +363,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
 			      const char *opts)
 {
 	struct crypto_cipher *essiv_tfm = NULL;
-	struct crypto_hash *hash_tfm = NULL;
+	struct crypto_ahash *hash_tfm = NULL;
 	u8 *salt = NULL;
 	int err;
 
@@ -370,14 +373,14 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
 	}
 
 	/* Allocate hash algorithm */
-	hash_tfm = crypto_alloc_hash(opts, 0, CRYPTO_ALG_ASYNC);
+	hash_tfm = crypto_alloc_ahash(opts, 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(hash_tfm)) {
 		ti->error = "Error initializing ESSIV hash";
 		err = PTR_ERR(hash_tfm);
 		goto bad;
 	}
 
-	salt = kzalloc(crypto_hash_digestsize(hash_tfm), GFP_KERNEL);
+	salt = kzalloc(crypto_ahash_digestsize(hash_tfm), GFP_KERNEL);
 	if (!salt) {
 		ti->error = "Error kmallocing salt storage in ESSIV";
 		err = -ENOMEM;
@@ -388,7 +391,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
 	cc->iv_gen_private.essiv.hash_tfm = hash_tfm;
 
 	essiv_tfm = setup_essiv_cpu(cc, ti, salt,
-				crypto_hash_digestsize(hash_tfm));
+				crypto_ahash_digestsize(hash_tfm));
 	if (IS_ERR(essiv_tfm)) {
 		crypt_iv_essiv_dtr(cc);
 		return PTR_ERR(essiv_tfm);
@@ -399,7 +402,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
 
 bad:
 	if (hash_tfm && !IS_ERR(hash_tfm))
-		crypto_free_hash(hash_tfm);
+		crypto_free_ahash(hash_tfm);
 	kfree(salt);
 	return err;
 }
@@ -419,7 +422,7 @@ static int crypt_iv_essiv_gen(struct crypt_config *cc, u8 *iv,
 static int crypt_iv_benbi_ctr(struct crypt_config *cc, struct dm_target *ti,
 			      const char *opts)
 {
-	unsigned bs = crypto_ablkcipher_blocksize(any_tfm(cc));
+	unsigned bs = crypto_skcipher_blocksize(any_tfm(cc));
 	int log = ilog2(bs);
 
 	/* we need to calculate how far we must shift the sector count
@@ -816,27 +819,27 @@ static void crypt_convert_init(struct crypt_config *cc,
 }
 
 static struct dm_crypt_request *dmreq_of_req(struct crypt_config *cc,
-					     struct ablkcipher_request *req)
+					     struct skcipher_request *req)
 {
 	return (struct dm_crypt_request *)((char *)req + cc->dmreq_start);
 }
 
-static struct ablkcipher_request *req_of_dmreq(struct crypt_config *cc,
+static struct skcipher_request *req_of_dmreq(struct crypt_config *cc,
 					       struct dm_crypt_request *dmreq)
 {
-	return (struct ablkcipher_request *)((char *)dmreq - cc->dmreq_start);
+	return (struct skcipher_request *)((char *)dmreq - cc->dmreq_start);
 }
 
 static u8 *iv_of_dmreq(struct crypt_config *cc,
 		       struct dm_crypt_request *dmreq)
 {
 	return (u8 *)ALIGN((unsigned long)(dmreq + 1),
-		crypto_ablkcipher_alignmask(any_tfm(cc)) + 1);
+		crypto_skcipher_alignmask(any_tfm(cc)) + 1);
 }
 
 static int crypt_convert_block(struct crypt_config *cc,
 			       struct convert_context *ctx,
-			       struct ablkcipher_request *req)
+			       struct skcipher_request *req)
 {
 	struct bio_vec bv_in = bio_iter_iovec(ctx->bio_in, ctx->iter_in);
 	struct bio_vec bv_out = bio_iter_iovec(ctx->bio_out, ctx->iter_out);
@@ -866,13 +869,13 @@ static int crypt_convert_block(struct crypt_config *cc,
 			return r;
 	}
 
-	ablkcipher_request_set_crypt(req, &dmreq->sg_in, &dmreq->sg_out,
-				     1 << SECTOR_SHIFT, iv);
+	skcipher_request_set_crypt(req, &dmreq->sg_in, &dmreq->sg_out,
+				   1 << SECTOR_SHIFT, iv);
 
 	if (bio_data_dir(ctx->bio_in) == WRITE)
-		r = crypto_ablkcipher_encrypt(req);
+		r = crypto_skcipher_encrypt(req);
 	else
-		r = crypto_ablkcipher_decrypt(req);
+		r = crypto_skcipher_decrypt(req);
 
 	if (!r && cc->iv_gen_ops && cc->iv_gen_ops->post)
 		r = cc->iv_gen_ops->post(cc, iv, dmreq);
@@ -891,23 +894,23 @@ static void crypt_alloc_req(struct crypt_config *cc,
 	if (!ctx->req)
 		ctx->req = mempool_alloc(cc->req_pool, GFP_NOIO);
 
-	ablkcipher_request_set_tfm(ctx->req, cc->tfms[key_index]);
+	skcipher_request_set_tfm(ctx->req, cc->tfms[key_index]);
 
 	/*
 	 * Use REQ_MAY_BACKLOG so a cipher driver internally backlogs
 	 * requests if driver request queue is full.
 	 */
-	ablkcipher_request_set_callback(ctx->req,
+	skcipher_request_set_callback(ctx->req,
 	    CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
 	    kcryptd_async_done, dmreq_of_req(cc, ctx->req));
 }
 
 static void crypt_free_req(struct crypt_config *cc,
-			   struct ablkcipher_request *req, struct bio *base_bio)
+			   struct skcipher_request *req, struct bio *base_bio)
 {
 	struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size);
 
-	if ((struct ablkcipher_request *)(io + 1) != req)
+	if ((struct skcipher_request *)(io + 1) != req)
 		mempool_free(req, cc->req_pool);
 }
 
@@ -1437,7 +1440,7 @@ static void crypt_free_tfms(struct crypt_config *cc)
 
 	for (i = 0; i < cc->tfms_count; i++)
 		if (cc->tfms[i] && !IS_ERR(cc->tfms[i])) {
-			crypto_free_ablkcipher(cc->tfms[i]);
+			crypto_free_skcipher(cc->tfms[i]);
 			cc->tfms[i] = NULL;
 		}
 
@@ -1450,13 +1453,13 @@ static int crypt_alloc_tfms(struct crypt_config *cc, char *ciphermode)
 	unsigned i;
 	int err;
 
-	cc->tfms = kmalloc(cc->tfms_count * sizeof(struct crypto_ablkcipher *),
+	cc->tfms = kmalloc(cc->tfms_count * sizeof(struct crypto_skcipher *),
 			   GFP_KERNEL);
 	if (!cc->tfms)
 		return -ENOMEM;
 
 	for (i = 0; i < cc->tfms_count; i++) {
-		cc->tfms[i] = crypto_alloc_ablkcipher(ciphermode, 0, 0);
+		cc->tfms[i] = crypto_alloc_skcipher(ciphermode, 0, 0);
 		if (IS_ERR(cc->tfms[i])) {
 			err = PTR_ERR(cc->tfms[i]);
 			crypt_free_tfms(cc);
@@ -1476,9 +1479,9 @@ static int crypt_setkey_allcpus(struct crypt_config *cc)
 	subkey_size = (cc->key_size - cc->key_extra_size) >> ilog2(cc->tfms_count);
 
 	for (i = 0; i < cc->tfms_count; i++) {
-		r = crypto_ablkcipher_setkey(cc->tfms[i],
-					     cc->key + (i * subkey_size),
-					     subkey_size);
+		r = crypto_skcipher_setkey(cc->tfms[i],
+					   cc->key + (i * subkey_size),
+					   subkey_size);
 		if (r)
 			err = r;
 	}
@@ -1645,7 +1648,7 @@ static int crypt_ctr_cipher(struct dm_target *ti,
 	}
 
 	/* Initialize IV */
-	cc->iv_size = crypto_ablkcipher_ivsize(any_tfm(cc));
+	cc->iv_size = crypto_skcipher_ivsize(any_tfm(cc));
 	if (cc->iv_size)
 		/* at least a 64 bit sector number should fit in our buffer */
 		cc->iv_size = max(cc->iv_size,
@@ -1763,21 +1766,21 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (ret < 0)
 		goto bad;
 
-	cc->dmreq_start = sizeof(struct ablkcipher_request);
-	cc->dmreq_start += crypto_ablkcipher_reqsize(any_tfm(cc));
+	cc->dmreq_start = sizeof(struct skcipher_request);
+	cc->dmreq_start += crypto_skcipher_reqsize(any_tfm(cc));
 	cc->dmreq_start = ALIGN(cc->dmreq_start, __alignof__(struct dm_crypt_request));
 
-	if (crypto_ablkcipher_alignmask(any_tfm(cc)) < CRYPTO_MINALIGN) {
+	if (crypto_skcipher_alignmask(any_tfm(cc)) < CRYPTO_MINALIGN) {
 		/* Allocate the padding exactly */
 		iv_size_padding = -(cc->dmreq_start + sizeof(struct dm_crypt_request))
-				& crypto_ablkcipher_alignmask(any_tfm(cc));
+				& crypto_skcipher_alignmask(any_tfm(cc));
 	} else {
 		/*
 		 * If the cipher requires greater alignment than kmalloc
 		 * alignment, we don't know the exact position of the
 		 * initialization vector. We must assume worst case.
 		 */
-		iv_size_padding = crypto_ablkcipher_alignmask(any_tfm(cc));
+		iv_size_padding = crypto_skcipher_alignmask(any_tfm(cc));
 	}
 
 	ret = -ENOMEM;
@@ -1922,7 +1925,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 
 	io = dm_per_bio_data(bio, cc->per_bio_data_size);
 	crypt_io_init(io, cc, bio, dm_target_offset(ti, bio->bi_iter.bi_sector));
-	io->ctx.req = (struct ablkcipher_request *)(io + 1);
+	io->ctx.req = (struct skcipher_request *)(io + 1);
 
 	if (bio_data_dir(io->base_bio) == READ) {
 		if (kcryptd_io_read(io, GFP_NOWAIT))

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#1315896 — Re: [PATCH 4/26] dm crypt: Use skcipher and ahash

Fromkbuild test robot <lkp@intel.com>
Date2016-01-24 14:50 +0100
SubjectRe: [PATCH 4/26] dm crypt: Use skcipher and ahash
Message-ID<qUtdf-5wr-1@gated-at.bofh.it>
In reply to#1315884

[Multipart message — attachments visible in raw view] — view raw

Hi Herbert,

[auto build test ERROR on net/master]
[also build test ERROR on v4.4 next-20160122]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Herbert-Xu/crypto-Use-skcipher-and-ahash-shash-where-possible/20160124-212323
config: x86_64-randconfig-x014-201604 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/md/dm-crypt.c: In function 'crypt_iv_essiv_init':
>> drivers/md/dm-crypt.c:278:2: error: implicit declaration of function 'ahash_request_zero' [-Werror=implicit-function-declaration]
     ahash_request_zero(req);
     ^
   cc1: some warnings being treated as errors

vim +/ahash_request_zero +278 drivers/md/dm-crypt.c

   272		sg_init_one(&sg, cc->key, cc->key_size);
   273		ahash_request_set_tfm(req, essiv->hash_tfm);
   274		ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP, NULL, NULL);
   275		ahash_request_set_crypt(req, &sg, essiv->salt, cc->key_size);
   276	
   277		err = crypto_ahash_digest(req);
 > 278		ahash_request_zero(req);
   279		if (err)
   280			return err;
   281	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1315885 — [PATCH 22/26] iscsi_tcp: Use ahash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 22/26] iscsi_tcp: Use ahash
Message-ID<qUsTV-5op-33@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of the long obsolete hash interface with
ahash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 drivers/scsi/iscsi_tcp.c    |   54 ++++++++++++++++++++++++++------------------
 drivers/scsi/iscsi_tcp.h    |    4 +--
 drivers/scsi/libiscsi_tcp.c |   29 +++++++++++++----------
 include/scsi/libiscsi_tcp.h |   13 +++++-----
 4 files changed, 58 insertions(+), 42 deletions(-)

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 0b8af18..2e4c82f 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -26,12 +26,12 @@
  *	Zhenyu Wang
  */
 
+#include <crypto/hash.h>
 #include <linux/types.h>
 #include <linux/inet.h>
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/blkdev.h>
-#include <linux/crypto.h>
 #include <linux/delay.h>
 #include <linux/kfifo.h>
 #include <linux/scatterlist.h>
@@ -428,7 +428,7 @@ static void iscsi_sw_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr,
 	 * sufficient room.
 	 */
 	if (conn->hdrdgst_en) {
-		iscsi_tcp_dgst_header(&tcp_sw_conn->tx_hash, hdr, hdrlen,
+		iscsi_tcp_dgst_header(tcp_sw_conn->tx_hash, hdr, hdrlen,
 				      hdr + hdrlen);
 		hdrlen += ISCSI_DIGEST_SIZE;
 	}
@@ -454,7 +454,7 @@ iscsi_sw_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg,
 {
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
-	struct hash_desc *tx_hash = NULL;
+	struct ahash_request *tx_hash = NULL;
 	unsigned int hdr_spec_len;
 
 	ISCSI_SW_TCP_DBG(conn, "offset=%d, datalen=%d %s\n", offset, len,
@@ -467,7 +467,7 @@ iscsi_sw_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg,
 	WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len));
 
 	if (conn->datadgst_en)
-		tx_hash = &tcp_sw_conn->tx_hash;
+		tx_hash = tcp_sw_conn->tx_hash;
 
 	return iscsi_segment_seek_sg(&tcp_sw_conn->out.data_segment,
 				     sg, count, offset, len,
@@ -480,7 +480,7 @@ iscsi_sw_tcp_send_linear_data_prep(struct iscsi_conn *conn, void *data,
 {
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
-	struct hash_desc *tx_hash = NULL;
+	struct ahash_request *tx_hash = NULL;
 	unsigned int hdr_spec_len;
 
 	ISCSI_SW_TCP_DBG(conn, "datalen=%zd %s\n", len, conn->datadgst_en ?
@@ -492,7 +492,7 @@ iscsi_sw_tcp_send_linear_data_prep(struct iscsi_conn *conn, void *data,
 	WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len));
 
 	if (conn->datadgst_en)
-		tx_hash = &tcp_sw_conn->tx_hash;
+		tx_hash = tcp_sw_conn->tx_hash;
 
 	iscsi_segment_init_linear(&tcp_sw_conn->out.data_segment,
 				data, len, NULL, tx_hash);
@@ -543,6 +543,7 @@ iscsi_sw_tcp_conn_create(struct iscsi_cls_session *cls_session,
 	struct iscsi_cls_conn *cls_conn;
 	struct iscsi_tcp_conn *tcp_conn;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn;
+	struct crypto_ahash *tfm;
 
 	cls_conn = iscsi_tcp_conn_setup(cls_session, sizeof(*tcp_sw_conn),
 					conn_idx);
@@ -552,23 +553,28 @@ iscsi_sw_tcp_conn_create(struct iscsi_cls_session *cls_session,
 	tcp_conn = conn->dd_data;
 	tcp_sw_conn = tcp_conn->dd_data;
 
-	tcp_sw_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0,
-						     CRYPTO_ALG_ASYNC);
-	tcp_sw_conn->tx_hash.flags = 0;
-	if (IS_ERR(tcp_sw_conn->tx_hash.tfm))
+	tfm = crypto_alloc_ahash("crc32c", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm))
 		goto free_conn;
 
-	tcp_sw_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0,
-						     CRYPTO_ALG_ASYNC);
-	tcp_sw_conn->rx_hash.flags = 0;
-	if (IS_ERR(tcp_sw_conn->rx_hash.tfm))
-		goto free_tx_tfm;
-	tcp_conn->rx_hash = &tcp_sw_conn->rx_hash;
+	tcp_sw_conn->tx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
+	if (!tcp_sw_conn->tx_hash)
+		goto free_tfm;
+	ahash_request_set_callback(tcp_sw_conn->tx_hash, 0, NULL, NULL);
+
+	tcp_sw_conn->rx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
+	if (!tcp_sw_conn->rx_hash)
+		goto free_tx_hash;
+	ahash_request_set_callback(tcp_sw_conn->rx_hash, 0, NULL, NULL);
+
+	tcp_conn->rx_hash = tcp_sw_conn->rx_hash;
 
 	return cls_conn;
 
-free_tx_tfm:
-	crypto_free_hash(tcp_sw_conn->tx_hash.tfm);
+free_tx_hash:
+	ahash_request_free(tcp_sw_conn->tx_hash);
+free_tfm:
+	crypto_free_ahash(tfm);
 free_conn:
 	iscsi_conn_printk(KERN_ERR, conn,
 			  "Could not create connection due to crc32c "
@@ -607,10 +613,14 @@ static void iscsi_sw_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
 
 	iscsi_sw_tcp_release_conn(conn);
 
-	if (tcp_sw_conn->tx_hash.tfm)
-		crypto_free_hash(tcp_sw_conn->tx_hash.tfm);
-	if (tcp_sw_conn->rx_hash.tfm)
-		crypto_free_hash(tcp_sw_conn->rx_hash.tfm);
+	ahash_request_free(tcp_sw_conn->rx_hash);
+	if (tcp_sw_conn->tx_hash) {
+		struct crypto_ahash *tfm;
+
+		tfm = crypto_ahash_reqtfm(tcp_sw_conn->tx_hash);
+		ahash_request_free(tcp_sw_conn->tx_hash);
+		crypto_free_ahash(tfm);
+	}
 
 	iscsi_tcp_conn_teardown(cls_conn);
 }
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index f42ecb23..06d42d0 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -45,8 +45,8 @@ struct iscsi_sw_tcp_conn {
 	void			(*old_write_space)(struct sock *);
 
 	/* data and header digests */
-	struct hash_desc	tx_hash;	/* CRC32C (Tx) */
-	struct hash_desc	rx_hash;	/* CRC32C (Rx) */
+	struct ahash_request	*tx_hash;	/* CRC32C (Tx) */
+	struct ahash_request	*rx_hash;	/* CRC32C (Rx) */
 
 	/* MIB custom statistics */
 	uint32_t		sendpage_failures_cnt;
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 60cb6dc..63a1d69 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -26,13 +26,13 @@
  *	Zhenyu Wang
  */
 
+#include <crypto/hash.h>
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/inet.h>
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/blkdev.h>
-#include <linux/crypto.h>
 #include <linux/delay.h>
 #include <linux/kfifo.h>
 #include <linux/scatterlist.h>
@@ -214,7 +214,8 @@ int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn,
 		} else
 			sg_init_one(&sg, segment->data + segment->copied,
 				    copied);
-		crypto_hash_update(segment->hash, &sg, copied);
+		ahash_request_set_crypt(segment->hash, &sg, NULL, copied);
+		crypto_ahash_update(segment->hash);
 	}
 
 	segment->copied += copied;
@@ -260,7 +261,9 @@ int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn,
 	 * is completely handled in hdr done function.
 	 */
 	if (segment->hash) {
-		crypto_hash_final(segment->hash, segment->digest);
+		ahash_request_set_crypt(segment->hash, NULL,
+					segment->digest, 0);
+		crypto_ahash_final(segment->hash);
 		iscsi_tcp_segment_splice_digest(segment,
 				 recv ? segment->recv_digest : segment->digest);
 		return 0;
@@ -310,13 +313,14 @@ iscsi_tcp_segment_recv(struct iscsi_tcp_conn *tcp_conn,
 }
 
 inline void
-iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr, size_t hdrlen,
-		      unsigned char digest[ISCSI_DIGEST_SIZE])
+iscsi_tcp_dgst_header(struct ahash_request *hash, const void *hdr,
+		      size_t hdrlen, unsigned char digest[ISCSI_DIGEST_SIZE])
 {
 	struct scatterlist sg;
 
 	sg_init_one(&sg, hdr, hdrlen);
-	crypto_hash_digest(hash, &sg, hdrlen, digest);
+	ahash_request_set_crypt(hash, &sg, digest, hdrlen);
+	crypto_ahash_digest(hash);
 }
 EXPORT_SYMBOL_GPL(iscsi_tcp_dgst_header);
 
@@ -341,7 +345,7 @@ iscsi_tcp_dgst_verify(struct iscsi_tcp_conn *tcp_conn,
  */
 static inline void
 __iscsi_segment_init(struct iscsi_segment *segment, size_t size,
-		     iscsi_segment_done_fn_t *done, struct hash_desc *hash)
+		     iscsi_segment_done_fn_t *done, struct ahash_request *hash)
 {
 	memset(segment, 0, sizeof(*segment));
 	segment->total_size = size;
@@ -349,14 +353,14 @@ __iscsi_segment_init(struct iscsi_segment *segment, size_t size,
 
 	if (hash) {
 		segment->hash = hash;
-		crypto_hash_init(hash);
+		crypto_ahash_init(hash);
 	}
 }
 
 inline void
 iscsi_segment_init_linear(struct iscsi_segment *segment, void *data,
 			  size_t size, iscsi_segment_done_fn_t *done,
-			  struct hash_desc *hash)
+			  struct ahash_request *hash)
 {
 	__iscsi_segment_init(segment, size, done, hash);
 	segment->data = data;
@@ -368,7 +372,8 @@ inline int
 iscsi_segment_seek_sg(struct iscsi_segment *segment,
 		      struct scatterlist *sg_list, unsigned int sg_count,
 		      unsigned int offset, size_t size,
-		      iscsi_segment_done_fn_t *done, struct hash_desc *hash)
+		      iscsi_segment_done_fn_t *done,
+		      struct ahash_request *hash)
 {
 	struct scatterlist *sg;
 	unsigned int i;
@@ -431,7 +436,7 @@ static void
 iscsi_tcp_data_recv_prep(struct iscsi_tcp_conn *tcp_conn)
 {
 	struct iscsi_conn *conn = tcp_conn->iscsi_conn;
-	struct hash_desc *rx_hash = NULL;
+	struct ahash_request *rx_hash = NULL;
 
 	if (conn->datadgst_en &&
 	    !(conn->session->tt->caps & CAP_DIGEST_OFFLOAD))
@@ -686,7 +691,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
 
 		if (tcp_conn->in.datalen) {
 			struct iscsi_tcp_task *tcp_task = task->dd_data;
-			struct hash_desc *rx_hash = NULL;
+			struct ahash_request *rx_hash = NULL;
 			struct scsi_data_buffer *sdb = scsi_in(task->sc);
 
 			/*
diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h
index 2a7aa75..30520d5 100644
--- a/include/scsi/libiscsi_tcp.h
+++ b/include/scsi/libiscsi_tcp.h
@@ -26,7 +26,7 @@
 struct iscsi_tcp_conn;
 struct iscsi_segment;
 struct sk_buff;
-struct hash_desc;
+struct ahash_request;
 
 typedef int iscsi_segment_done_fn_t(struct iscsi_tcp_conn *,
 				    struct iscsi_segment *);
@@ -38,7 +38,7 @@ struct iscsi_segment {
 	unsigned int		total_size;
 	unsigned int		total_copied;
 
-	struct hash_desc	*hash;
+	struct ahash_request	*hash;
 	unsigned char		padbuf[ISCSI_PAD_LEN];
 	unsigned char		recv_digest[ISCSI_DIGEST_SIZE];
 	unsigned char		digest[ISCSI_DIGEST_SIZE];
@@ -73,7 +73,7 @@ struct iscsi_tcp_conn {
 	/* control data */
 	struct iscsi_tcp_recv	in;		/* TCP receive context */
 	/* CRC32C (Rx) LLD should set this is they do not offload */
-	struct hash_desc	*rx_hash;
+	struct ahash_request	*rx_hash;
 };
 
 struct iscsi_tcp_task {
@@ -111,15 +111,16 @@ extern void iscsi_tcp_segment_unmap(struct iscsi_segment *segment);
 extern void iscsi_segment_init_linear(struct iscsi_segment *segment,
 				      void *data, size_t size,
 				      iscsi_segment_done_fn_t *done,
-				      struct hash_desc *hash);
+				      struct ahash_request *hash);
 extern int
 iscsi_segment_seek_sg(struct iscsi_segment *segment,
 		      struct scatterlist *sg_list, unsigned int sg_count,
 		      unsigned int offset, size_t size,
-		      iscsi_segment_done_fn_t *done, struct hash_desc *hash);
+		      iscsi_segment_done_fn_t *done,
+		      struct ahash_request *hash);
 
 /* digest helpers */
-extern void iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr,
+extern void iscsi_tcp_dgst_header(struct ahash_request *hash, const void *hdr,
 				  size_t hdrlen,
 				  unsigned char digest[ISCSI_DIGEST_SIZE]);
 extern struct iscsi_cls_conn *

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#1317260 — Re: [dm-devel] [PATCH 22/26] iscsi_tcp: Use ahash

FromMike Christie <michaelc@cs.wisc.edu>
Date2016-01-25 21:00 +0100
SubjectRe: [dm-devel] [PATCH 22/26] iscsi_tcp: Use ahash
Message-ID<qUVsS-t7-7@gated-at.bofh.it>
In reply to#1315885
On 01/24/2016 07:19 AM, Herbert Xu wrote:
> This patch replaces uses of the long obsolete hash interface with
> ahash.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
> ---
> 
>  drivers/scsi/iscsi_tcp.c    |   54 ++++++++++++++++++++++++++------------------
>  drivers/scsi/iscsi_tcp.h    |    4 +--
>  drivers/scsi/libiscsi_tcp.c |   29 +++++++++++++----------
>  include/scsi/libiscsi_tcp.h |   13 +++++-----
>  4 files changed, 58 insertions(+), 42 deletions(-)
> 

iSCSI parts look ok.

Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>

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#1315886 — [PATCH 26/26] tcp: Use ahash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 26/26] tcp: Use ahash
Message-ID<qUsTV-5op-37@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of the long obsolete hash interface with
ahash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 include/net/tcp.h       |    6 +-----
 net/ipv4/tcp.c          |   41 ++++++++++++++++++++++++++---------------
 net/ipv4/tcp_fastopen.c |    1 +
 net/ipv4/tcp_ipv4.c     |   23 +++++++++++++----------
 net/ipv6/tcp_ipv6.c     |   23 +++++++++++++----------
 5 files changed, 54 insertions(+), 40 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 8ea1997..2a5b3b8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -27,7 +27,6 @@
 #include <linux/cache.h>
 #include <linux/percpu.h>
 #include <linux/skbuff.h>
-#include <linux/crypto.h>
 #include <linux/cryptohash.h>
 #include <linux/kref.h>
 #include <linux/ktime.h>
@@ -1325,9 +1324,6 @@ static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
 	tp->retransmit_skb_hint = NULL;
 }
 
-/* MD5 Signature */
-struct crypto_hash;
-
 union tcp_md5_addr {
 	struct in_addr  a4;
 #if IS_ENABLED(CONFIG_IPV6)
@@ -1376,7 +1372,7 @@ union tcp_md5sum_block {
 
 /* - pool: digest algorithm, hash description and scratch buffer */
 struct tcp_md5sig_pool {
-	struct hash_desc	md5_desc;
+	struct ahash_request	*md5_req;
 	union tcp_md5sum_block	md5_blk;
 };
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index fd17eec..91ffef3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -247,6 +247,7 @@
 
 #define pr_fmt(fmt) "TCP: " fmt
 
+#include <crypto/hash.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -266,7 +267,6 @@
 #include <linux/swap.h>
 #include <linux/cache.h>
 #include <linux/err.h>
-#include <linux/crypto.h>
 #include <linux/time.h>
 #include <linux/slab.h>
 
@@ -2939,17 +2939,26 @@ static bool tcp_md5sig_pool_populated = false;
 
 static void __tcp_alloc_md5sig_pool(void)
 {
+	struct crypto_ahash *hash;
 	int cpu;
 
+	hash = crypto_alloc_ahash("md5", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR_OR_NULL(hash))
+		return;
+
 	for_each_possible_cpu(cpu) {
-		if (!per_cpu(tcp_md5sig_pool, cpu).md5_desc.tfm) {
-			struct crypto_hash *hash;
+		struct ahash_request *req;
 
-			hash = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
-			if (IS_ERR_OR_NULL(hash))
-				return;
-			per_cpu(tcp_md5sig_pool, cpu).md5_desc.tfm = hash;
-		}
+		if (per_cpu(tcp_md5sig_pool, cpu).md5_req)
+			continue;
+
+		req = ahash_request_alloc(hash, GFP_KERNEL);
+		if (!req)
+			return;
+
+		ahash_request_set_callback(req, 0, NULL, NULL);
+
+		per_cpu(tcp_md5sig_pool, cpu).md5_req = req;
 	}
 	/* before setting tcp_md5sig_pool_populated, we must commit all writes
 	 * to memory. See smp_rmb() in tcp_get_md5sig_pool()
@@ -2999,7 +3008,6 @@ int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
 {
 	struct scatterlist sg;
 	struct tcphdr hdr;
-	int err;
 
 	/* We are not allowed to change tcphdr, make a local copy */
 	memcpy(&hdr, th, sizeof(hdr));
@@ -3007,8 +3015,8 @@ int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
 
 	/* options aren't included in the hash */
 	sg_init_one(&sg, &hdr, sizeof(hdr));
-	err = crypto_hash_update(&hp->md5_desc, &sg, sizeof(hdr));
-	return err;
+	ahash_request_set_crypt(hp->md5_req, &sg, NULL, sizeof(hdr));
+	return crypto_ahash_update(hp->md5_req);
 }
 EXPORT_SYMBOL(tcp_md5_hash_header);
 
@@ -3017,7 +3025,7 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
 {
 	struct scatterlist sg;
 	const struct tcphdr *tp = tcp_hdr(skb);
-	struct hash_desc *desc = &hp->md5_desc;
+	struct ahash_request *req = hp->md5_req;
 	unsigned int i;
 	const unsigned int head_data_len = skb_headlen(skb) > header_len ?
 					   skb_headlen(skb) - header_len : 0;
@@ -3027,7 +3035,8 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
 	sg_init_table(&sg, 1);
 
 	sg_set_buf(&sg, ((u8 *) tp) + header_len, head_data_len);
-	if (crypto_hash_update(desc, &sg, head_data_len))
+	ahash_request_set_crypt(req, &sg, NULL, head_data_len);
+	if (crypto_ahash_update(req))
 		return 1;
 
 	for (i = 0; i < shi->nr_frags; ++i) {
@@ -3037,7 +3046,8 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
 
 		sg_set_page(&sg, page, skb_frag_size(f),
 			    offset_in_page(offset));
-		if (crypto_hash_update(desc, &sg, skb_frag_size(f)))
+		ahash_request_set_crypt(req, &sg, NULL, skb_frag_size(f));
+		if (crypto_ahash_update(req))
 			return 1;
 	}
 
@@ -3054,7 +3064,8 @@ int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, const struct tcp_md5sig_key *ke
 	struct scatterlist sg;
 
 	sg_init_one(&sg, key->key, key->keylen);
-	return crypto_hash_update(&hp->md5_desc, &sg, key->keylen);
+	ahash_request_set_crypt(hp->md5_req, &sg, NULL, key->keylen);
+	return crypto_ahash_update(hp->md5_req);
 }
 EXPORT_SYMBOL(tcp_md5_hash_key);
 
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 55be6ac..4c65ca1 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -1,3 +1,4 @@
+#include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c7d1fb5..989bfd1 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -82,7 +82,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
-#include <linux/crypto.h>
+#include <crypto/hash.h>
 #include <linux/scatterlist.h>
 
 int sysctl_tcp_tw_reuse __read_mostly;
@@ -1032,21 +1032,22 @@ static int tcp_v4_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
 	bp->len = cpu_to_be16(nbytes);
 
 	sg_init_one(&sg, bp, sizeof(*bp));
-	return crypto_hash_update(&hp->md5_desc, &sg, sizeof(*bp));
+	ahash_request_set_crypt(hp->md5_req, &sg, NULL, sizeof(*bp));
+	return crypto_ahash_update(hp->md5_req);
 }
 
 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 			       __be32 daddr, __be32 saddr, const struct tcphdr *th)
 {
 	struct tcp_md5sig_pool *hp;
-	struct hash_desc *desc;
+	struct ahash_request *req;
 
 	hp = tcp_get_md5sig_pool();
 	if (!hp)
 		goto clear_hash_noput;
-	desc = &hp->md5_desc;
+	req = hp->md5_req;
 
-	if (crypto_hash_init(desc))
+	if (crypto_ahash_init(req))
 		goto clear_hash;
 	if (tcp_v4_md5_hash_pseudoheader(hp, daddr, saddr, th->doff << 2))
 		goto clear_hash;
@@ -1054,7 +1055,8 @@ static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 		goto clear_hash;
 	if (tcp_md5_hash_key(hp, key))
 		goto clear_hash;
-	if (crypto_hash_final(desc, md5_hash))
+	ahash_request_set_crypt(req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(req))
 		goto clear_hash;
 
 	tcp_put_md5sig_pool();
@@ -1072,7 +1074,7 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 			const struct sk_buff *skb)
 {
 	struct tcp_md5sig_pool *hp;
-	struct hash_desc *desc;
+	struct ahash_request *req;
 	const struct tcphdr *th = tcp_hdr(skb);
 	__be32 saddr, daddr;
 
@@ -1088,9 +1090,9 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 	hp = tcp_get_md5sig_pool();
 	if (!hp)
 		goto clear_hash_noput;
-	desc = &hp->md5_desc;
+	req = hp->md5_req;
 
-	if (crypto_hash_init(desc))
+	if (crypto_ahash_init(req))
 		goto clear_hash;
 
 	if (tcp_v4_md5_hash_pseudoheader(hp, daddr, saddr, skb->len))
@@ -1101,7 +1103,8 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 		goto clear_hash;
 	if (tcp_md5_hash_key(hp, key))
 		goto clear_hash;
-	if (crypto_hash_final(desc, md5_hash))
+	ahash_request_set_crypt(req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(req))
 		goto clear_hash;
 
 	tcp_put_md5sig_pool();
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 4ad8edb..ad20d50 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -67,7 +67,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
-#include <linux/crypto.h>
+#include <crypto/hash.h>
 #include <linux/scatterlist.h>
 
 static void	tcp_v6_send_reset(const struct sock *sk, struct sk_buff *skb);
@@ -541,7 +541,8 @@ static int tcp_v6_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
 	bp->len = cpu_to_be32(nbytes);
 
 	sg_init_one(&sg, bp, sizeof(*bp));
-	return crypto_hash_update(&hp->md5_desc, &sg, sizeof(*bp));
+	ahash_request_set_crypt(hp->md5_req, &sg, NULL, sizeof(*bp));
+	return crypto_ahash_update(hp->md5_req);
 }
 
 static int tcp_v6_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
@@ -549,14 +550,14 @@ static int tcp_v6_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
 			       const struct tcphdr *th)
 {
 	struct tcp_md5sig_pool *hp;
-	struct hash_desc *desc;
+	struct ahash_request *req;
 
 	hp = tcp_get_md5sig_pool();
 	if (!hp)
 		goto clear_hash_noput;
-	desc = &hp->md5_desc;
+	req = hp->md5_req;
 
-	if (crypto_hash_init(desc))
+	if (crypto_ahash_init(req))
 		goto clear_hash;
 	if (tcp_v6_md5_hash_pseudoheader(hp, daddr, saddr, th->doff << 2))
 		goto clear_hash;
@@ -564,7 +565,8 @@ static int tcp_v6_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
 		goto clear_hash;
 	if (tcp_md5_hash_key(hp, key))
 		goto clear_hash;
-	if (crypto_hash_final(desc, md5_hash))
+	ahash_request_set_crypt(req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(req))
 		goto clear_hash;
 
 	tcp_put_md5sig_pool();
@@ -584,7 +586,7 @@ static int tcp_v6_md5_hash_skb(char *md5_hash,
 {
 	const struct in6_addr *saddr, *daddr;
 	struct tcp_md5sig_pool *hp;
-	struct hash_desc *desc;
+	struct ahash_request *req;
 	const struct tcphdr *th = tcp_hdr(skb);
 
 	if (sk) { /* valid for establish/request sockets */
@@ -599,9 +601,9 @@ static int tcp_v6_md5_hash_skb(char *md5_hash,
 	hp = tcp_get_md5sig_pool();
 	if (!hp)
 		goto clear_hash_noput;
-	desc = &hp->md5_desc;
+	req = hp->md5_req;
 
-	if (crypto_hash_init(desc))
+	if (crypto_ahash_init(req))
 		goto clear_hash;
 
 	if (tcp_v6_md5_hash_pseudoheader(hp, daddr, saddr, skb->len))
@@ -612,7 +614,8 @@ static int tcp_v6_md5_hash_skb(char *md5_hash,
 		goto clear_hash;
 	if (tcp_md5_hash_key(hp, key))
 		goto clear_hash;
-	if (crypto_hash_final(desc, md5_hash))
+	ahash_request_set_crypt(req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(req))
 		goto clear_hash;
 
 	tcp_put_md5sig_pool();

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#1316228 — Re: [PATCH 26/26] tcp: Use ahash

FromDavid Miller <davem@davemloft.net>
Date2016-01-25 07:10 +0100
SubjectRe: [PATCH 26/26] tcp: Use ahash
Message-ID<qUIvF-8bt-19@gated-at.bofh.it>
In reply to#1315886
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 24 Jan 2016 21:20:23 +0800

> This patch replaces uses of the long obsolete hash interface with
> ahash.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Acked-by: David S. Miller <davem@davemloft.net>

[toc] | [prev] | [next] | [standalone]


#1315887 — [PATCH 23/26] iscsi-target: Use shash and ahash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 23/26] iscsi-target: Use shash and ahash
Message-ID<qUsTV-5op-29@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of the long obsolete hash interface with
either shash (for non-SG users) or ahash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 drivers/target/iscsi/iscsi_target.c       |   86 ++++++++++++++------------
 drivers/target/iscsi/iscsi_target_auth.c  |   98 +++++++++++-------------------
 drivers/target/iscsi/iscsi_target_login.c |   45 ++++++++-----
 include/target/iscsi/iscsi_target_core.h  |    4 -
 4 files changed, 113 insertions(+), 120 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 72204fb..866f3ad 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -16,9 +16,9 @@
  * GNU General Public License for more details.
  ******************************************************************************/
 
+#include <crypto/hash.h>
 #include <linux/string.h>
 #include <linux/kthread.h>
-#include <linux/crypto.h>
 #include <linux/completion.h>
 #include <linux/module.h>
 #include <linux/vmalloc.h>
@@ -1190,7 +1190,7 @@ iscsit_handle_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 }
 
 static u32 iscsit_do_crypto_hash_sg(
-	struct hash_desc *hash,
+	struct ahash_request *hash,
 	struct iscsi_cmd *cmd,
 	u32 data_offset,
 	u32 data_length,
@@ -1201,7 +1201,7 @@ static u32 iscsit_do_crypto_hash_sg(
 	struct scatterlist *sg;
 	unsigned int page_off;
 
-	crypto_hash_init(hash);
+	crypto_ahash_init(hash);
 
 	sg = cmd->first_data_sg;
 	page_off = cmd->first_data_sg_off;
@@ -1209,7 +1209,8 @@ static u32 iscsit_do_crypto_hash_sg(
 	while (data_length) {
 		u32 cur_len = min_t(u32, data_length, (sg->length - page_off));
 
-		crypto_hash_update(hash, sg, cur_len);
+		ahash_request_set_crypt(hash, sg, NULL, cur_len);
+		crypto_ahash_update(hash);
 
 		data_length -= cur_len;
 		page_off = 0;
@@ -1221,33 +1222,34 @@ static u32 iscsit_do_crypto_hash_sg(
 		struct scatterlist pad_sg;
 
 		sg_init_one(&pad_sg, pad_bytes, padding);
-		crypto_hash_update(hash, &pad_sg, padding);
+		ahash_request_set_crypt(hash, &pad_sg, (u8 *)&data_crc,
+					padding);
+		crypto_ahash_finup(hash);
+	} else {
+		ahash_request_set_crypt(hash, NULL, (u8 *)&data_crc, 0);
+		crypto_ahash_final(hash);
 	}
-	crypto_hash_final(hash, (u8 *) &data_crc);
 
 	return data_crc;
 }
 
 static void iscsit_do_crypto_hash_buf(
-	struct hash_desc *hash,
+	struct ahash_request *hash,
 	const void *buf,
 	u32 payload_length,
 	u32 padding,
 	u8 *pad_bytes,
 	u8 *data_crc)
 {
-	struct scatterlist sg;
+	struct scatterlist sg[2];
 
-	crypto_hash_init(hash);
+	sg_init_table(sg, ARRAY_SIZE(sg));
+	sg_set_buf(sg, buf, payload_length);
+	sg_set_buf(sg + 1, pad_bytes, padding);
 
-	sg_init_one(&sg, buf, payload_length);
-	crypto_hash_update(hash, &sg, payload_length);
+	ahash_request_set_crypt(hash, sg, data_crc, payload_length + padding);
 
-	if (padding) {
-		sg_init_one(&sg, pad_bytes, padding);
-		crypto_hash_update(hash, &sg, padding);
-	}
-	crypto_hash_final(hash, data_crc);
+	crypto_ahash_digest(hash);
 }
 
 int
@@ -1422,7 +1424,7 @@ iscsit_get_dataout(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	if (conn->conn_ops->DataDigest) {
 		u32 data_crc;
 
-		data_crc = iscsit_do_crypto_hash_sg(&conn->conn_rx_hash, cmd,
+		data_crc = iscsit_do_crypto_hash_sg(conn->conn_rx_hash, cmd,
 						    be32_to_cpu(hdr->offset),
 						    payload_length, padding,
 						    cmd->pad_bytes);
@@ -1682,7 +1684,7 @@ static int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 		}
 
 		if (conn->conn_ops->DataDigest) {
-			iscsit_do_crypto_hash_buf(&conn->conn_rx_hash,
+			iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
 					ping_data, payload_length,
 					padding, cmd->pad_bytes,
 					(u8 *)&data_crc);
@@ -2101,7 +2103,7 @@ iscsit_handle_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 			goto reject;
 
 		if (conn->conn_ops->DataDigest) {
-			iscsit_do_crypto_hash_buf(&conn->conn_rx_hash,
+			iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
 					text_in, payload_length,
 					padding, (u8 *)&pad_bytes,
 					(u8 *)&data_crc);
@@ -2440,7 +2442,7 @@ static int iscsit_handle_immediate_data(
 	if (conn->conn_ops->DataDigest) {
 		u32 data_crc;
 
-		data_crc = iscsit_do_crypto_hash_sg(&conn->conn_rx_hash, cmd,
+		data_crc = iscsit_do_crypto_hash_sg(conn->conn_rx_hash, cmd,
 						    cmd->write_data_done, length, padding,
 						    cmd->pad_bytes);
 
@@ -2553,7 +2555,7 @@ static int iscsit_send_conn_drop_async_message(
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		cmd->tx_size += ISCSI_CRC_LEN;
@@ -2683,7 +2685,7 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, cmd->pdu,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -2711,7 +2713,7 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 				cmd->padding);
 	}
 	if (conn->conn_ops->DataDigest) {
-		cmd->data_crc = iscsit_do_crypto_hash_sg(&conn->conn_tx_hash, cmd,
+		cmd->data_crc = iscsit_do_crypto_hash_sg(conn->conn_tx_hash, cmd,
 			 datain.offset, datain.length, cmd->padding, cmd->pad_bytes);
 
 		iov[iov_count].iov_base	= &cmd->data_crc;
@@ -2857,7 +2859,7 @@ iscsit_send_logout(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, &cmd->pdu[0],
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, &cmd->pdu[0],
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -2915,7 +2917,7 @@ static int iscsit_send_unsolicited_nopin(
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		tx_size += ISCSI_CRC_LEN;
@@ -2963,7 +2965,7 @@ iscsit_send_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -2993,7 +2995,7 @@ iscsit_send_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 				" padding bytes.\n", padding);
 		}
 		if (conn->conn_ops->DataDigest) {
-			iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
+			iscsit_do_crypto_hash_buf(conn->conn_tx_hash,
 				cmd->buf_ptr, cmd->buf_ptr_size,
 				padding, (u8 *)&cmd->pad_bytes,
 				(u8 *)&cmd->data_crc);
@@ -3049,7 +3051,7 @@ static int iscsit_send_r2t(
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
@@ -3239,7 +3241,7 @@ static int iscsit_send_response(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 		}
 
 		if (conn->conn_ops->DataDigest) {
-			iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
+			iscsit_do_crypto_hash_buf(conn->conn_tx_hash,
 				cmd->sense_buffer,
 				(cmd->se_cmd.scsi_sense_length + padding),
 				0, NULL, (u8 *)&cmd->data_crc);
@@ -3262,7 +3264,7 @@ static int iscsit_send_response(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, cmd->pdu,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -3332,7 +3334,7 @@ iscsit_send_task_mgt_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
@@ -3601,7 +3603,7 @@ static int iscsit_send_text_rsp(
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -3611,7 +3613,7 @@ static int iscsit_send_text_rsp(
 	}
 
 	if (conn->conn_ops->DataDigest) {
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash,
 				cmd->buf_ptr, text_length,
 				0, NULL, (u8 *)&cmd->data_crc);
 
@@ -3668,7 +3670,7 @@ static int iscsit_send_reject(
 	if (conn->conn_ops->HeaderDigest) {
 		u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
 		iov[0].iov_len += ISCSI_CRC_LEN;
@@ -3678,7 +3680,7 @@ static int iscsit_send_reject(
 	}
 
 	if (conn->conn_ops->DataDigest) {
-		iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->buf_ptr,
+		iscsit_do_crypto_hash_buf(conn->conn_tx_hash, cmd->buf_ptr,
 				ISCSI_HDR_LEN, 0, NULL, (u8 *)&cmd->data_crc);
 
 		iov[iov_count].iov_base = &cmd->data_crc;
@@ -4145,7 +4147,7 @@ int iscsi_target_rx_thread(void *arg)
 				goto transport_err;
 			}
 
-			iscsit_do_crypto_hash_buf(&conn->conn_rx_hash,
+			iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
 					buffer, ISCSI_HDR_LEN,
 					0, NULL, (u8 *)&checksum);
 
@@ -4359,10 +4361,14 @@ int iscsit_close_connection(
 	 */
 	iscsit_check_conn_usage_count(conn);
 
-	if (conn->conn_rx_hash.tfm)
-		crypto_free_hash(conn->conn_rx_hash.tfm);
-	if (conn->conn_tx_hash.tfm)
-		crypto_free_hash(conn->conn_tx_hash.tfm);
+	ahash_request_free(conn->conn_tx_hash);
+	if (conn->conn_rx_hash) {
+		struct crypto_ahash *tfm;
+
+		tfm = crypto_ahash_reqtfm(conn->conn_rx_hash);
+		ahash_request_free(conn->conn_rx_hash);
+		crypto_free_ahash(tfm);
+	}
 
 	free_cpumask_var(conn->conn_cpumask);
 
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 47e249d..667406f 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -16,9 +16,9 @@
  * GNU General Public License for more details.
  ******************************************************************************/
 
+#include <crypto/hash.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/scatterlist.h>
 
@@ -185,9 +185,8 @@ static int chap_server_compute_md5(
 	unsigned char chap_n[MAX_CHAP_N_SIZE], chap_r[MAX_RESPONSE_LENGTH];
 	size_t compare_len;
 	struct iscsi_chap *chap = conn->auth_protocol;
-	struct crypto_hash *tfm;
-	struct hash_desc desc;
-	struct scatterlist sg;
+	struct crypto_shash *tfm = NULL;
+	struct shash_desc *desc = NULL;
 	int auth_ret = -1, ret, challenge_len;
 
 	memset(identifier, 0, 10);
@@ -245,52 +244,47 @@ static int chap_server_compute_md5(
 	pr_debug("[server] Got CHAP_R=%s\n", chap_r);
 	chap_string_to_hex(client_digest, chap_r, strlen(chap_r));
 
-	tfm = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
+	tfm = crypto_alloc_shash("md5", 0, 0);
 	if (IS_ERR(tfm)) {
-		pr_err("Unable to allocate struct crypto_hash\n");
+		tfm = NULL;
+		pr_err("Unable to allocate struct crypto_shash\n");
 		goto out;
 	}
-	desc.tfm = tfm;
-	desc.flags = 0;
 
-	ret = crypto_hash_init(&desc);
-	if (ret < 0) {
-		pr_err("crypto_hash_init() failed\n");
-		crypto_free_hash(tfm);
+	desc = kmalloc(sizeof(*desc) + crypto_shash_descsize(tfm), GFP_KERNEL);
+	if (!desc) {
+		pr_err("Unable to allocate struct shash_desc\n");
 		goto out;
 	}
 
-	sg_init_one(&sg, &chap->id, 1);
-	ret = crypto_hash_update(&desc, &sg, 1);
+	desc->tfm = tfm;
+	desc->flags = 0;
+
+	ret = crypto_shash_init(desc);
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for id\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_init() failed\n");
 		goto out;
 	}
 
-	sg_init_one(&sg, &auth->password, strlen(auth->password));
-	ret = crypto_hash_update(&desc, &sg, strlen(auth->password));
+	ret = crypto_shash_update(desc, &chap->id, 1);
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for password\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_update() failed for id\n");
 		goto out;
 	}
 
-	sg_init_one(&sg, chap->challenge, CHAP_CHALLENGE_LENGTH);
-	ret = crypto_hash_update(&desc, &sg, CHAP_CHALLENGE_LENGTH);
+	ret = crypto_shash_update(desc, (char *)&auth->password,
+				  strlen(auth->password));
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for challenge\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_update() failed for password\n");
 		goto out;
 	}
 
-	ret = crypto_hash_final(&desc, server_digest);
+	ret = crypto_shash_finup(desc, chap->challenge,
+				 CHAP_CHALLENGE_LENGTH, server_digest);
 	if (ret < 0) {
-		pr_err("crypto_hash_final() failed for server digest\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_finup() failed for challenge\n");
 		goto out;
 	}
-	crypto_free_hash(tfm);
 
 	chap_binaryhex_to_asciihex(response, server_digest, MD5_SIGNATURE_SIZE);
 	pr_debug("[server] MD5 Server Digest: %s\n", response);
@@ -306,9 +300,8 @@ static int chap_server_compute_md5(
 	 * authentication is not enabled.
 	 */
 	if (!auth->authenticate_target) {
-		kfree(challenge);
-		kfree(challenge_binhex);
-		return 0;
+		auth_ret = 0;
+		goto out;
 	}
 	/*
 	 * Get CHAP_I.
@@ -372,58 +365,37 @@ static int chap_server_compute_md5(
 	/*
 	 * Generate CHAP_N and CHAP_R for mutual authentication.
 	 */
-	tfm = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
-	if (IS_ERR(tfm)) {
-		pr_err("Unable to allocate struct crypto_hash\n");
-		goto out;
-	}
-	desc.tfm = tfm;
-	desc.flags = 0;
-
-	ret = crypto_hash_init(&desc);
+	ret = crypto_shash_init(desc);
 	if (ret < 0) {
-		pr_err("crypto_hash_init() failed\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_init() failed\n");
 		goto out;
 	}
 
 	/* To handle both endiannesses */
 	id_as_uchar = id;
-	sg_init_one(&sg, &id_as_uchar, 1);
-	ret = crypto_hash_update(&desc, &sg, 1);
+	ret = crypto_shash_update(desc, &id_as_uchar, 1);
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for id\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_update() failed for id\n");
 		goto out;
 	}
 
-	sg_init_one(&sg, auth->password_mutual,
-				strlen(auth->password_mutual));
-	ret = crypto_hash_update(&desc, &sg, strlen(auth->password_mutual));
+	ret = crypto_shash_update(desc, auth->password_mutual,
+				  strlen(auth->password_mutual));
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for"
+		pr_err("crypto_shash_update() failed for"
 				" password_mutual\n");
-		crypto_free_hash(tfm);
 		goto out;
 	}
 	/*
 	 * Convert received challenge to binary hex.
 	 */
-	sg_init_one(&sg, challenge_binhex, challenge_len);
-	ret = crypto_hash_update(&desc, &sg, challenge_len);
+	ret = crypto_shash_finup(desc, challenge_binhex, challenge_len,
+				 digest);
 	if (ret < 0) {
-		pr_err("crypto_hash_update() failed for ma challenge\n");
-		crypto_free_hash(tfm);
+		pr_err("crypto_shash_finup() failed for ma challenge\n");
 		goto out;
 	}
 
-	ret = crypto_hash_final(&desc, digest);
-	if (ret < 0) {
-		pr_err("crypto_hash_final() failed for ma digest\n");
-		crypto_free_hash(tfm);
-		goto out;
-	}
-	crypto_free_hash(tfm);
 	/*
 	 * Generate CHAP_N and CHAP_R.
 	 */
@@ -440,6 +412,8 @@ static int chap_server_compute_md5(
 	pr_debug("[server] Sending CHAP_R=0x%s\n", response);
 	auth_ret = 0;
 out:
+	kzfree(desc);
+	crypto_free_shash(tfm);
 	kfree(challenge);
 	kfree(challenge_binhex);
 	return auth_ret;
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 96e78c8..8436d56 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -16,9 +16,9 @@
  * GNU General Public License for more details.
  ******************************************************************************/
 
+#include <crypto/hash.h>
 #include <linux/string.h>
 #include <linux/kthread.h>
-#include <linux/crypto.h>
 #include <linux/idr.h>
 #include <scsi/iscsi_proto.h>
 #include <target/target_core_base.h>
@@ -115,27 +115,36 @@ out_login:
  */
 int iscsi_login_setup_crypto(struct iscsi_conn *conn)
 {
+	struct crypto_ahash *tfm;
+
 	/*
 	 * Setup slicing by CRC32C algorithm for RX and TX libcrypto contexts
 	 * which will default to crc32c_intel.ko for cpu_has_xmm4_2, or fallback
 	 * to software 1x8 byte slicing from crc32c.ko
 	 */
-	conn->conn_rx_hash.flags = 0;
-	conn->conn_rx_hash.tfm = crypto_alloc_hash("crc32c", 0,
-						CRYPTO_ALG_ASYNC);
-	if (IS_ERR(conn->conn_rx_hash.tfm)) {
-		pr_err("crypto_alloc_hash() failed for conn_rx_tfm\n");
+	tfm = crypto_alloc_ahash("crc32c", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm)) {
+		pr_err("crypto_alloc_ahash() failed\n");
 		return -ENOMEM;
 	}
 
-	conn->conn_tx_hash.flags = 0;
-	conn->conn_tx_hash.tfm = crypto_alloc_hash("crc32c", 0,
-						CRYPTO_ALG_ASYNC);
-	if (IS_ERR(conn->conn_tx_hash.tfm)) {
-		pr_err("crypto_alloc_hash() failed for conn_tx_tfm\n");
-		crypto_free_hash(conn->conn_rx_hash.tfm);
+	conn->conn_rx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
+	if (!conn->conn_rx_hash) {
+		pr_err("ahash_request_alloc() failed for conn_rx_hash\n");
+		crypto_free_ahash(tfm);
+		return -ENOMEM;
+	}
+	ahash_request_set_callback(conn->conn_rx_hash, 0, NULL, NULL);
+
+	conn->conn_tx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
+	if (!conn->conn_tx_hash) {
+		pr_err("ahash_request_alloc() failed for conn_tx_hash\n");
+		ahash_request_free(conn->conn_rx_hash);
+		conn->conn_rx_hash = NULL;
+		crypto_free_ahash(tfm);
 		return -ENOMEM;
 	}
+	ahash_request_set_callback(conn->conn_tx_hash, 0, NULL, NULL);
 
 	return 0;
 }
@@ -1174,10 +1183,14 @@ old_sess_out:
 		iscsit_dec_session_usage_count(conn->sess);
 	}
 
-	if (!IS_ERR(conn->conn_rx_hash.tfm))
-		crypto_free_hash(conn->conn_rx_hash.tfm);
-	if (!IS_ERR(conn->conn_tx_hash.tfm))
-		crypto_free_hash(conn->conn_tx_hash.tfm);
+	ahash_request_free(conn->conn_tx_hash);
+	if (conn->conn_rx_hash) {
+		struct crypto_ahash *tfm;
+
+		tfm = crypto_ahash_reqtfm(conn->conn_rx_hash);
+		ahash_request_free(conn->conn_rx_hash);
+		crypto_free_ahash(tfm);
+	}
 
 	free_cpumask_var(conn->conn_cpumask);
 
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 373d334..c3371fa 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -570,8 +570,8 @@ struct iscsi_conn {
 	spinlock_t		response_queue_lock;
 	spinlock_t		state_lock;
 	/* libcrypto RX and TX contexts for crc32c */
-	struct hash_desc	conn_rx_hash;
-	struct hash_desc	conn_tx_hash;
+	struct ahash_request	*conn_rx_hash;
+	struct ahash_request	*conn_tx_hash;
 	/* Used for scheduling TX and RX connection kthreads */
 	cpumask_var_t		conn_cpumask;
 	unsigned int		conn_rx_reset_cpumask:1;

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#1315888 — [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms
Message-ID<qUsTV-5op-43@gated-at.bofh.it>
In reply to#1315868
This patch removes the last reference to hash and ablkcipher from
IPsec and replaces them with ahash and skcipher respectively.  For
skcipher there is currently no difference at all, while for ahash
the current code is actually buggy and would prevent asynchronous
algorithms from being discovered.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 net/xfrm/xfrm_algo.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index f07224d..250e567 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -9,6 +9,8 @@
  * any later version.
  */
 
+#include <crypto/hash.h>
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/pfkeyv2.h>
@@ -782,14 +784,13 @@ void xfrm_probe_algs(void)
 	BUG_ON(in_softirq());
 
 	for (i = 0; i < aalg_entries(); i++) {
-		status = crypto_has_hash(aalg_list[i].name, 0,
-					 CRYPTO_ALG_ASYNC);
+		status = crypto_has_ahash(aalg_list[i].name, 0, 0);
 		if (aalg_list[i].available != status)
 			aalg_list[i].available = status;
 	}
 
 	for (i = 0; i < ealg_entries(); i++) {
-		status = crypto_has_ablkcipher(ealg_list[i].name, 0, 0);
+		status = crypto_has_skcipher(ealg_list[i].name, 0, 0);
 		if (ealg_list[i].available != status)
 			ealg_list[i].available = status;
 	}

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#1315895 — Re: [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms

Fromkbuild test robot <lkp@intel.com>
Date2016-01-24 14:50 +0100
SubjectRe: [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms
Message-ID<qUtdg-5wr-5@gated-at.bofh.it>
In reply to#1315888

[Multipart message — attachments visible in raw view] — view raw

Hi Herbert,

[auto build test ERROR on net/master]
[also build test ERROR on v4.4 next-20160122]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Herbert-Xu/crypto-Use-skcipher-and-ahash-shash-where-possible/20160124-212323
config: x86_64-randconfig-x014-201604 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   net/xfrm/xfrm_algo.c: In function 'xfrm_probe_algs':
>> net/xfrm/xfrm_algo.c:787:12: error: implicit declaration of function 'crypto_has_ahash' [-Werror=implicit-function-declaration]
      status = crypto_has_ahash(aalg_list[i].name, 0, 0);
               ^
   cc1: some warnings being treated as errors

vim +/crypto_has_ahash +787 net/xfrm/xfrm_algo.c

   781	{
   782		int i, status;
   783	
   784		BUG_ON(in_softirq());
   785	
   786		for (i = 0; i < aalg_entries(); i++) {
 > 787			status = crypto_has_ahash(aalg_list[i].name, 0, 0);
   788			if (aalg_list[i].available != status)
   789				aalg_list[i].available = status;
   790		}

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1316226 — Re: [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms

FromDavid Miller <davem@davemloft.net>
Date2016-01-25 07:10 +0100
SubjectRe: [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms
Message-ID<qUIvF-8bt-17@gated-at.bofh.it>
In reply to#1315888
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 24 Jan 2016 21:19:11 +0800

> This patch removes the last reference to hash and ablkcipher from
> IPsec and replaces them with ahash and skcipher respectively.  For
> skcipher there is currently no difference at all, while for ahash
> the current code is actually buggy and would prevent asynchronous
> algorithms from being discovered.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Acked-by: David S. Miller <davem@davemloft.net>

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#1315889 — [PATCH 20/26] drbd: Use shash and ahash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 20/26] drbd: Use shash and ahash
Message-ID<qUsTV-5op-39@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of the long obsolete hash interface with
either shash (for non-SG users) or ahash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 drivers/block/drbd/drbd_int.h      |   16 +++++-----
 drivers/block/drbd/drbd_main.c     |   16 +++++-----
 drivers/block/drbd/drbd_nl.c       |   59 +++++++++++++++++++++++--------------
 drivers/block/drbd/drbd_receiver.c |   56 ++++++++++++++++-------------------
 drivers/block/drbd/drbd_worker.c   |   43 +++++++++++++++-----------
 5 files changed, 103 insertions(+), 87 deletions(-)

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index e66d453..686d955 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -26,13 +26,13 @@
 #ifndef _DRBD_INT_H
 #define _DRBD_INT_H
 
+#include <crypto/hash.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/sched.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>
-#include <linux/crypto.h>
 #include <linux/ratelimit.h>
 #include <linux/tcp.h>
 #include <linux/mutex.h>
@@ -737,11 +737,11 @@ struct drbd_connection {
 
 	struct list_head transfer_log;	/* all requests not yet fully processed */
 
-	struct crypto_hash *cram_hmac_tfm;
-	struct crypto_hash *integrity_tfm;  /* checksums we compute, updates protected by connection->data->mutex */
-	struct crypto_hash *peer_integrity_tfm;  /* checksums we verify, only accessed from receiver thread  */
-	struct crypto_hash *csums_tfm;
-	struct crypto_hash *verify_tfm;
+	struct crypto_shash *cram_hmac_tfm;
+	struct crypto_ahash *integrity_tfm;  /* checksums we compute, updates protected by connection->data->mutex */
+	struct crypto_ahash *peer_integrity_tfm;  /* checksums we verify, only accessed from receiver thread  */
+	struct crypto_ahash *csums_tfm;
+	struct crypto_ahash *verify_tfm;
 	void *int_dig_in;
 	void *int_dig_vv;
 
@@ -1511,8 +1511,8 @@ static inline void ov_out_of_sync_print(struct drbd_device *device)
 }
 
 
-extern void drbd_csum_bio(struct crypto_hash *, struct bio *, void *);
-extern void drbd_csum_ee(struct crypto_hash *, struct drbd_peer_request *, void *);
+extern void drbd_csum_bio(struct crypto_ahash *, struct bio *, void *);
+extern void drbd_csum_ee(struct crypto_ahash *, struct drbd_peer_request *, void *);
 /* worker callbacks */
 extern int w_e_end_data_req(struct drbd_work *, int);
 extern int w_e_end_rsdata_req(struct drbd_work *, int);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 74d97f4..69ee808 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1339,7 +1339,7 @@ void drbd_send_ack_dp(struct drbd_peer_device *peer_device, enum drbd_packet cmd
 		      struct p_data *dp, int data_size)
 {
 	if (peer_device->connection->peer_integrity_tfm)
-		data_size -= crypto_hash_digestsize(peer_device->connection->peer_integrity_tfm);
+		data_size -= crypto_ahash_digestsize(peer_device->connection->peer_integrity_tfm);
 	_drbd_send_ack(peer_device, cmd, dp->sector, cpu_to_be32(data_size),
 		       dp->block_id);
 }
@@ -1628,7 +1628,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
 	sock = &peer_device->connection->data;
 	p = drbd_prepare_command(peer_device, sock);
 	digest_size = peer_device->connection->integrity_tfm ?
-		      crypto_hash_digestsize(peer_device->connection->integrity_tfm) : 0;
+		      crypto_ahash_digestsize(peer_device->connection->integrity_tfm) : 0;
 
 	if (!p)
 		return -EIO;
@@ -1717,7 +1717,7 @@ int drbd_send_block(struct drbd_peer_device *peer_device, enum drbd_packet cmd,
 	p = drbd_prepare_command(peer_device, sock);
 
 	digest_size = peer_device->connection->integrity_tfm ?
-		      crypto_hash_digestsize(peer_device->connection->integrity_tfm) : 0;
+		      crypto_ahash_digestsize(peer_device->connection->integrity_tfm) : 0;
 
 	if (!p)
 		return -EIO;
@@ -2506,11 +2506,11 @@ void conn_free_crypto(struct drbd_connection *connection)
 {
 	drbd_free_sock(connection);
 
-	crypto_free_hash(connection->csums_tfm);
-	crypto_free_hash(connection->verify_tfm);
-	crypto_free_hash(connection->cram_hmac_tfm);
-	crypto_free_hash(connection->integrity_tfm);
-	crypto_free_hash(connection->peer_integrity_tfm);
+	crypto_free_ahash(connection->csums_tfm);
+	crypto_free_ahash(connection->verify_tfm);
+	crypto_free_shash(connection->cram_hmac_tfm);
+	crypto_free_ahash(connection->integrity_tfm);
+	crypto_free_ahash(connection->peer_integrity_tfm);
 	kfree(connection->int_dig_in);
 	kfree(connection->int_dig_vv);
 
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index e80cbef..578f635 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -2065,19 +2065,34 @@ check_net_options(struct drbd_connection *connection, struct net_conf *new_net_c
 }
 
 struct crypto {
-	struct crypto_hash *verify_tfm;
-	struct crypto_hash *csums_tfm;
-	struct crypto_hash *cram_hmac_tfm;
-	struct crypto_hash *integrity_tfm;
+	struct crypto_ahash *verify_tfm;
+	struct crypto_ahash *csums_tfm;
+	struct crypto_shash *cram_hmac_tfm;
+	struct crypto_ahash *integrity_tfm;
 };
 
 static int
-alloc_hash(struct crypto_hash **tfm, char *tfm_name, int err_alg)
+alloc_shash(struct crypto_shash **tfm, char *tfm_name, int err_alg)
 {
 	if (!tfm_name[0])
 		return NO_ERROR;
 
-	*tfm = crypto_alloc_hash(tfm_name, 0, CRYPTO_ALG_ASYNC);
+	*tfm = crypto_alloc_shash(tfm_name, 0, 0);
+	if (IS_ERR(*tfm)) {
+		*tfm = NULL;
+		return err_alg;
+	}
+
+	return NO_ERROR;
+}
+
+static int
+alloc_ahash(struct crypto_ahash **tfm, char *tfm_name, int err_alg)
+{
+	if (!tfm_name[0])
+		return NO_ERROR;
+
+	*tfm = crypto_alloc_ahash(tfm_name, 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(*tfm)) {
 		*tfm = NULL;
 		return err_alg;
@@ -2092,24 +2107,24 @@ alloc_crypto(struct crypto *crypto, struct net_conf *new_net_conf)
 	char hmac_name[CRYPTO_MAX_ALG_NAME];
 	enum drbd_ret_code rv;
 
-	rv = alloc_hash(&crypto->csums_tfm, new_net_conf->csums_alg,
-		       ERR_CSUMS_ALG);
+	rv = alloc_ahash(&crypto->csums_tfm, new_net_conf->csums_alg,
+			 ERR_CSUMS_ALG);
 	if (rv != NO_ERROR)
 		return rv;
-	rv = alloc_hash(&crypto->verify_tfm, new_net_conf->verify_alg,
-		       ERR_VERIFY_ALG);
+	rv = alloc_ahash(&crypto->verify_tfm, new_net_conf->verify_alg,
+			 ERR_VERIFY_ALG);
 	if (rv != NO_ERROR)
 		return rv;
-	rv = alloc_hash(&crypto->integrity_tfm, new_net_conf->integrity_alg,
-		       ERR_INTEGRITY_ALG);
+	rv = alloc_ahash(&crypto->integrity_tfm, new_net_conf->integrity_alg,
+			 ERR_INTEGRITY_ALG);
 	if (rv != NO_ERROR)
 		return rv;
 	if (new_net_conf->cram_hmac_alg[0] != 0) {
 		snprintf(hmac_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)",
 			 new_net_conf->cram_hmac_alg);
 
-		rv = alloc_hash(&crypto->cram_hmac_tfm, hmac_name,
-			       ERR_AUTH_ALG);
+		rv = alloc_shash(&crypto->cram_hmac_tfm, hmac_name,
+				 ERR_AUTH_ALG);
 	}
 
 	return rv;
@@ -2117,10 +2132,10 @@ alloc_crypto(struct crypto *crypto, struct net_conf *new_net_conf)
 
 static void free_crypto(struct crypto *crypto)
 {
-	crypto_free_hash(crypto->cram_hmac_tfm);
-	crypto_free_hash(crypto->integrity_tfm);
-	crypto_free_hash(crypto->csums_tfm);
-	crypto_free_hash(crypto->verify_tfm);
+	crypto_free_shash(crypto->cram_hmac_tfm);
+	crypto_free_ahash(crypto->integrity_tfm);
+	crypto_free_ahash(crypto->csums_tfm);
+	crypto_free_ahash(crypto->verify_tfm);
 }
 
 int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
@@ -2197,23 +2212,23 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
 	rcu_assign_pointer(connection->net_conf, new_net_conf);
 
 	if (!rsr) {
-		crypto_free_hash(connection->csums_tfm);
+		crypto_free_ahash(connection->csums_tfm);
 		connection->csums_tfm = crypto.csums_tfm;
 		crypto.csums_tfm = NULL;
 	}
 	if (!ovr) {
-		crypto_free_hash(connection->verify_tfm);
+		crypto_free_ahash(connection->verify_tfm);
 		connection->verify_tfm = crypto.verify_tfm;
 		crypto.verify_tfm = NULL;
 	}
 
-	crypto_free_hash(connection->integrity_tfm);
+	crypto_free_ahash(connection->integrity_tfm);
 	connection->integrity_tfm = crypto.integrity_tfm;
 	if (connection->cstate >= C_WF_REPORT_PARAMS && connection->agreed_pro_version >= 100)
 		/* Do this without trying to take connection->data.mutex again.  */
 		__drbd_send_protocol(connection, P_PROTOCOL_UPDATE);
 
-	crypto_free_hash(connection->cram_hmac_tfm);
+	crypto_free_shash(connection->cram_hmac_tfm);
 	connection->cram_hmac_tfm = crypto.cram_hmac_tfm;
 
 	mutex_unlock(&connection->resource->conf_update);
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index b4b5680..d1f8559 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1601,7 +1601,7 @@ read_in_block(struct drbd_peer_device *peer_device, u64 id, sector_t sector,
 
 	digest_size = 0;
 	if (!trim && peer_device->connection->peer_integrity_tfm) {
-		digest_size = crypto_hash_digestsize(peer_device->connection->peer_integrity_tfm);
+		digest_size = crypto_ahash_digestsize(peer_device->connection->peer_integrity_tfm);
 		/*
 		 * FIXME: Receive the incoming digest into the receive buffer
 		 *	  here, together with its struct p_data?
@@ -1715,7 +1715,7 @@ static int recv_dless_read(struct drbd_peer_device *peer_device, struct drbd_req
 
 	digest_size = 0;
 	if (peer_device->connection->peer_integrity_tfm) {
-		digest_size = crypto_hash_digestsize(peer_device->connection->peer_integrity_tfm);
+		digest_size = crypto_ahash_digestsize(peer_device->connection->peer_integrity_tfm);
 		err = drbd_recv_all_warn(peer_device->connection, dig_in, digest_size);
 		if (err)
 			return err;
@@ -3295,7 +3295,7 @@ static int receive_protocol(struct drbd_connection *connection, struct packet_in
 	int p_proto, p_discard_my_data, p_two_primaries, cf;
 	struct net_conf *nc, *old_net_conf, *new_net_conf = NULL;
 	char integrity_alg[SHARED_SECRET_MAX] = "";
-	struct crypto_hash *peer_integrity_tfm = NULL;
+	struct crypto_ahash *peer_integrity_tfm = NULL;
 	void *int_dig_in = NULL, *int_dig_vv = NULL;
 
 	p_proto		= be32_to_cpu(p->protocol);
@@ -3376,14 +3376,14 @@ static int receive_protocol(struct drbd_connection *connection, struct packet_in
 		 * change.
 		 */
 
-		peer_integrity_tfm = crypto_alloc_hash(integrity_alg, 0, CRYPTO_ALG_ASYNC);
+		peer_integrity_tfm = crypto_alloc_ahash(integrity_alg, 0, CRYPTO_ALG_ASYNC);
 		if (!peer_integrity_tfm) {
 			drbd_err(connection, "peer data-integrity-alg %s not supported\n",
 				 integrity_alg);
 			goto disconnect;
 		}
 
-		hash_size = crypto_hash_digestsize(peer_integrity_tfm);
+		hash_size = crypto_ahash_digestsize(peer_integrity_tfm);
 		int_dig_in = kmalloc(hash_size, GFP_KERNEL);
 		int_dig_vv = kmalloc(hash_size, GFP_KERNEL);
 		if (!(int_dig_in && int_dig_vv)) {
@@ -3413,7 +3413,7 @@ static int receive_protocol(struct drbd_connection *connection, struct packet_in
 	mutex_unlock(&connection->resource->conf_update);
 	mutex_unlock(&connection->data.mutex);
 
-	crypto_free_hash(connection->peer_integrity_tfm);
+	crypto_free_ahash(connection->peer_integrity_tfm);
 	kfree(connection->int_dig_in);
 	kfree(connection->int_dig_vv);
 	connection->peer_integrity_tfm = peer_integrity_tfm;
@@ -3431,7 +3431,7 @@ static int receive_protocol(struct drbd_connection *connection, struct packet_in
 disconnect_rcu_unlock:
 	rcu_read_unlock();
 disconnect:
-	crypto_free_hash(peer_integrity_tfm);
+	crypto_free_ahash(peer_integrity_tfm);
 	kfree(int_dig_in);
 	kfree(int_dig_vv);
 	conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_HARD);
@@ -3443,15 +3443,15 @@ disconnect:
  * return: NULL (alg name was "")
  *         ERR_PTR(error) if something goes wrong
  *         or the crypto hash ptr, if it worked out ok. */
-static struct crypto_hash *drbd_crypto_alloc_digest_safe(const struct drbd_device *device,
+static struct crypto_ahash *drbd_crypto_alloc_digest_safe(const struct drbd_device *device,
 		const char *alg, const char *name)
 {
-	struct crypto_hash *tfm;
+	struct crypto_ahash *tfm;
 
 	if (!alg[0])
 		return NULL;
 
-	tfm = crypto_alloc_hash(alg, 0, CRYPTO_ALG_ASYNC);
+	tfm = crypto_alloc_ahash(alg, 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm)) {
 		drbd_err(device, "Can not allocate \"%s\" as %s (reason: %ld)\n",
 			alg, name, PTR_ERR(tfm));
@@ -3504,8 +3504,8 @@ static int receive_SyncParam(struct drbd_connection *connection, struct packet_i
 	struct drbd_device *device;
 	struct p_rs_param_95 *p;
 	unsigned int header_size, data_size, exp_max_sz;
-	struct crypto_hash *verify_tfm = NULL;
-	struct crypto_hash *csums_tfm = NULL;
+	struct crypto_ahash *verify_tfm = NULL;
+	struct crypto_ahash *csums_tfm = NULL;
 	struct net_conf *old_net_conf, *new_net_conf = NULL;
 	struct disk_conf *old_disk_conf = NULL, *new_disk_conf = NULL;
 	const int apv = connection->agreed_pro_version;
@@ -3652,14 +3652,14 @@ static int receive_SyncParam(struct drbd_connection *connection, struct packet_i
 			if (verify_tfm) {
 				strcpy(new_net_conf->verify_alg, p->verify_alg);
 				new_net_conf->verify_alg_len = strlen(p->verify_alg) + 1;
-				crypto_free_hash(peer_device->connection->verify_tfm);
+				crypto_free_ahash(peer_device->connection->verify_tfm);
 				peer_device->connection->verify_tfm = verify_tfm;
 				drbd_info(device, "using verify-alg: \"%s\"\n", p->verify_alg);
 			}
 			if (csums_tfm) {
 				strcpy(new_net_conf->csums_alg, p->csums_alg);
 				new_net_conf->csums_alg_len = strlen(p->csums_alg) + 1;
-				crypto_free_hash(peer_device->connection->csums_tfm);
+				crypto_free_ahash(peer_device->connection->csums_tfm);
 				peer_device->connection->csums_tfm = csums_tfm;
 				drbd_info(device, "using csums-alg: \"%s\"\n", p->csums_alg);
 			}
@@ -3703,9 +3703,9 @@ disconnect:
 	mutex_unlock(&connection->resource->conf_update);
 	/* just for completeness: actually not needed,
 	 * as this is not reached if csums_tfm was ok. */
-	crypto_free_hash(csums_tfm);
+	crypto_free_ahash(csums_tfm);
 	/* but free the verify_tfm again, if csums_tfm did not work out */
-	crypto_free_hash(verify_tfm);
+	crypto_free_ahash(verify_tfm);
 	conn_request_state(peer_device->connection, NS(conn, C_DISCONNECTING), CS_HARD);
 	return -EIO;
 }
@@ -4895,14 +4895,13 @@ static int drbd_do_auth(struct drbd_connection *connection)
 {
 	struct drbd_socket *sock;
 	char my_challenge[CHALLENGE_LEN];  /* 64 Bytes... */
-	struct scatterlist sg;
 	char *response = NULL;
 	char *right_response = NULL;
 	char *peers_ch = NULL;
 	unsigned int key_len;
 	char secret[SHARED_SECRET_MAX]; /* 64 byte */
 	unsigned int resp_size;
-	struct hash_desc desc;
+	SHASH_DESC_ON_STACK(desc, connection->cram_hmac_tfm);
 	struct packet_info pi;
 	struct net_conf *nc;
 	int err, rv;
@@ -4915,12 +4914,12 @@ static int drbd_do_auth(struct drbd_connection *connection)
 	memcpy(secret, nc->shared_secret, key_len);
 	rcu_read_unlock();
 
-	desc.tfm = connection->cram_hmac_tfm;
-	desc.flags = 0;
+	desc->tfm = connection->cram_hmac_tfm;
+	desc->flags = 0;
 
-	rv = crypto_hash_setkey(connection->cram_hmac_tfm, (u8 *)secret, key_len);
+	rv = crypto_shash_setkey(connection->cram_hmac_tfm, (u8 *)secret, key_len);
 	if (rv) {
-		drbd_err(connection, "crypto_hash_setkey() failed with %d\n", rv);
+		drbd_err(connection, "crypto_shash_setkey() failed with %d\n", rv);
 		rv = -1;
 		goto fail;
 	}
@@ -4981,7 +4980,7 @@ static int drbd_do_auth(struct drbd_connection *connection)
 		goto fail;
 	}
 
-	resp_size = crypto_hash_digestsize(connection->cram_hmac_tfm);
+	resp_size = crypto_shash_digestsize(connection->cram_hmac_tfm);
 	response = kmalloc(resp_size, GFP_NOIO);
 	if (response == NULL) {
 		drbd_err(connection, "kmalloc of response failed\n");
@@ -4989,10 +4988,7 @@ static int drbd_do_auth(struct drbd_connection *connection)
 		goto fail;
 	}
 
-	sg_init_table(&sg, 1);
-	sg_set_buf(&sg, peers_ch, pi.size);
-
-	rv = crypto_hash_digest(&desc, &sg, sg.length, response);
+	rv = crypto_shash_digest(desc, peers_ch, pi.size, response);
 	if (rv) {
 		drbd_err(connection, "crypto_hash_digest() failed with %d\n", rv);
 		rv = -1;
@@ -5040,9 +5036,8 @@ static int drbd_do_auth(struct drbd_connection *connection)
 		goto fail;
 	}
 
-	sg_set_buf(&sg, my_challenge, CHALLENGE_LEN);
-
-	rv = crypto_hash_digest(&desc, &sg, sg.length, right_response);
+	rv = crypto_shash_digest(desc, my_challenge, CHALLENGE_LEN,
+				 right_response);
 	if (rv) {
 		drbd_err(connection, "crypto_hash_digest() failed with %d\n", rv);
 		rv = -1;
@@ -5061,6 +5056,7 @@ static int drbd_do_auth(struct drbd_connection *connection)
 	kfree(peers_ch);
 	kfree(response);
 	kfree(right_response);
+	shash_desc_zero(desc);
 
 	return rv;
 }
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 5578c14..426d4fc 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -269,51 +269,56 @@ void drbd_request_endio(struct bio *bio)
 		complete_master_bio(device, &m);
 }
 
-void drbd_csum_ee(struct crypto_hash *tfm, struct drbd_peer_request *peer_req, void *digest)
+void drbd_csum_ee(struct crypto_ahash *tfm, struct drbd_peer_request *peer_req, void *digest)
 {
-	struct hash_desc desc;
+	AHASH_REQUEST_ON_STACK(req, tfm);
 	struct scatterlist sg;
 	struct page *page = peer_req->pages;
 	struct page *tmp;
 	unsigned len;
 
-	desc.tfm = tfm;
-	desc.flags = 0;
+	ahash_request_set_tfm(req, tfm);
+	ahash_request_set_callback(req, 0, NULL, NULL);
 
 	sg_init_table(&sg, 1);
-	crypto_hash_init(&desc);
+	crypto_ahash_init(req);
 
 	while ((tmp = page_chain_next(page))) {
 		/* all but the last page will be fully used */
 		sg_set_page(&sg, page, PAGE_SIZE, 0);
-		crypto_hash_update(&desc, &sg, sg.length);
+		ahash_request_set_crypt(req, &sg, NULL, sg.length);
+		crypto_ahash_update(req);
 		page = tmp;
 	}
 	/* and now the last, possibly only partially used page */
 	len = peer_req->i.size & (PAGE_SIZE - 1);
 	sg_set_page(&sg, page, len ?: PAGE_SIZE, 0);
-	crypto_hash_update(&desc, &sg, sg.length);
-	crypto_hash_final(&desc, digest);
+	ahash_request_set_crypt(req, &sg, digest, sg.length);
+	crypto_ahash_finup(req);
+	ahash_request_zero(req);
 }
 
-void drbd_csum_bio(struct crypto_hash *tfm, struct bio *bio, void *digest)
+void drbd_csum_bio(struct crypto_ahash *tfm, struct bio *bio, void *digest)
 {
-	struct hash_desc desc;
+	AHASH_REQUEST_ON_STACK(req, tfm);
 	struct scatterlist sg;
 	struct bio_vec bvec;
 	struct bvec_iter iter;
 
-	desc.tfm = tfm;
-	desc.flags = 0;
+	ahash_request_set_tfm(req, tfm);
+	ahash_request_set_callback(req, 0, NULL, NULL);
 
 	sg_init_table(&sg, 1);
-	crypto_hash_init(&desc);
+	crypto_ahash_init(req);
 
 	bio_for_each_segment(bvec, bio, iter) {
 		sg_set_page(&sg, bvec.bv_page, bvec.bv_len, bvec.bv_offset);
-		crypto_hash_update(&desc, &sg, sg.length);
+		ahash_request_set_crypt(req, &sg, NULL, sg.length);
+		crypto_ahash_update(req);
 	}
-	crypto_hash_final(&desc, digest);
+	ahash_request_set_crypt(req, NULL, digest, 0);
+	crypto_ahash_final(req);
+	ahash_request_zero(req);
 }
 
 /* MAYBE merge common code with w_e_end_ov_req */
@@ -332,7 +337,7 @@ static int w_e_send_csum(struct drbd_work *w, int cancel)
 	if (unlikely((peer_req->flags & EE_WAS_ERROR) != 0))
 		goto out;
 
-	digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);
+	digest_size = crypto_ahash_digestsize(peer_device->connection->csums_tfm);
 	digest = kmalloc(digest_size, GFP_NOIO);
 	if (digest) {
 		sector_t sector = peer_req->i.sector;
@@ -1108,7 +1113,7 @@ int w_e_end_csum_rs_req(struct drbd_work *w, int cancel)
 		 * a real fix would be much more involved,
 		 * introducing more locking mechanisms */
 		if (peer_device->connection->csums_tfm) {
-			digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);
+			digest_size = crypto_ahash_digestsize(peer_device->connection->csums_tfm);
 			D_ASSERT(device, digest_size == di->digest_size);
 			digest = kmalloc(digest_size, GFP_NOIO);
 		}
@@ -1158,7 +1163,7 @@ int w_e_end_ov_req(struct drbd_work *w, int cancel)
 	if (unlikely(cancel))
 		goto out;
 
-	digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);
+	digest_size = crypto_ahash_digestsize(peer_device->connection->verify_tfm);
 	digest = kmalloc(digest_size, GFP_NOIO);
 	if (!digest) {
 		err = 1;	/* terminate the connection in case the allocation failed */
@@ -1230,7 +1235,7 @@ int w_e_end_ov_reply(struct drbd_work *w, int cancel)
 	di = peer_req->digest;
 
 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
-		digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);
+		digest_size = crypto_ahash_digestsize(peer_device->connection->verify_tfm);
 		digest = kmalloc(digest_size, GFP_NOIO);
 		if (digest) {
 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);

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#1315890 — [PATCH 21/26] nfc: s3fwrn5: Use shash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 21/26] nfc: s3fwrn5: Use shash
Message-ID<qUsTV-5op-41@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of the long obsolete hash interface with
shash.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 drivers/nfc/s3fwrn5/firmware.c |   36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c
index 64a9025..5f97da1 100644
--- a/drivers/nfc/s3fwrn5/firmware.c
+++ b/drivers/nfc/s3fwrn5/firmware.c
@@ -19,7 +19,7 @@
 
 #include <linux/completion.h>
 #include <linux/firmware.h>
-#include <linux/crypto.h>
+#include <crypto/hash.h>
 #include <crypto/sha.h>
 
 #include "s3fwrn5.h"
@@ -429,8 +429,7 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info)
 {
 	struct s3fwrn5_fw_image *fw = &fw_info->fw;
 	u8 hash_data[SHA1_DIGEST_SIZE];
-	struct scatterlist sg;
-	struct hash_desc desc;
+	struct crypto_shash *tfm;
 	u32 image_size, off;
 	int ret;
 
@@ -438,12 +437,31 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info)
 
 	/* Compute SHA of firmware data */
 
-	sg_init_one(&sg, fw->image, image_size);
-	desc.tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
-	crypto_hash_init(&desc);
-	crypto_hash_update(&desc, &sg, image_size);
-	crypto_hash_final(&desc, hash_data);
-	crypto_free_hash(desc.tfm);
+	tfm = crypto_alloc_shash("sha1", 0, 0);
+	if (IS_ERR(tfm)) {
+		ret = PTR_ERR(tfm);
+		dev_err(&fw_info->ndev->nfc_dev->dev,
+			"Cannot allocate shash (code=%d)\n", ret);
+		goto out;
+	}
+
+	{
+		SHASH_DESC_ON_STACK(desc, tfm);
+
+		desc->tfm = tfm;
+		desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+
+		ret = crypto_shash_digest(desc, fw->image, image_size,
+					  hash_data);
+		shash_desc_zero(desc);
+	}
+
+	crypto_free_shash(tfm);
+	if (ret) {
+		dev_err(&fw_info->ndev->nfc_dev->dev,
+			"Cannot compute hash (code=%d)\n", ret);
+		goto out;
+	}
 
 	/* Firmware update process */
 

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#1315911 — Re: [PATCH 21/26] nfc: s3fwrn5: Use shash

Fromkbuild test robot <lkp@intel.com>
Date2016-01-24 15:00 +0100
SubjectRe: [PATCH 21/26] nfc: s3fwrn5: Use shash
Message-ID<qUtmX-5A8-39@gated-at.bofh.it>
In reply to#1315890

[Multipart message — attachments visible in raw view] — view raw

Hi Herbert,

[auto build test ERROR on net/master]
[also build test ERROR on v4.4 next-20160122]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Herbert-Xu/crypto-Use-skcipher-and-ahash-shash-where-possible/20160124-212323
config: x86_64-randconfig-x014-201604 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/nfc/s3fwrn5/firmware.c: In function 's3fwrn5_fw_download':
>> drivers/nfc/s3fwrn5/firmware.c:456:3: error: implicit declaration of function 'shash_desc_zero' [-Werror=implicit-function-declaration]
      shash_desc_zero(desc);
      ^
   cc1: some warnings being treated as errors

vim +/shash_desc_zero +456 drivers/nfc/s3fwrn5/firmware.c

   450	
   451			desc->tfm = tfm;
   452			desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
   453	
   454			ret = crypto_shash_digest(desc, fw->image, image_size,
   455						  hash_data);
 > 456			shash_desc_zero(desc);
   457		}
   458	
   459		crypto_free_shash(tfm);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1315891 — [PATCH 15/26] Bluetooth: Use skcipher and hash

FromHerbert Xu <herbert@gondor.apana.org.au>
Date2016-01-24 14:30 +0100
Subject[PATCH 15/26] Bluetooth: Use skcipher and hash
Message-ID<qUsTV-5op-47@gated-at.bofh.it>
In reply to#1315868
This patch replaces uses of blkcipher with skcipher and the long
obsolete hash interface with shash.
   
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 net/bluetooth/smp.c |  135 ++++++++++++++++++++++++----------------------------
 1 file changed, 63 insertions(+), 72 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index ffed8a1..78ad7d6 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -21,9 +21,10 @@
 */
 
 #include <linux/debugfs.h>
-#include <linux/crypto.h>
 #include <linux/scatterlist.h>
 #include <crypto/b128ops.h>
+#include <crypto/hash.h>
+#include <crypto/skcipher.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -87,8 +88,8 @@ struct smp_dev {
 	u8			min_key_size;
 	u8			max_key_size;
 
-	struct crypto_blkcipher	*tfm_aes;
-	struct crypto_hash	*tfm_cmac;
+	struct crypto_skcipher	*tfm_aes;
+	struct crypto_shash	*tfm_cmac;
 };
 
 struct smp_chan {
@@ -126,8 +127,8 @@ struct smp_chan {
 	u8			dhkey[32];
 	u8			mackey[16];
 
-	struct crypto_blkcipher	*tfm_aes;
-	struct crypto_hash	*tfm_cmac;
+	struct crypto_skcipher	*tfm_aes;
+	struct crypto_shash	*tfm_cmac;
 };
 
 /* These debug key values are defined in the SMP section of the core
@@ -165,12 +166,11 @@ static inline void swap_buf(const u8 *src, u8 *dst, size_t len)
  * AES-CMAC, f4, f5, f6, g2 and h6.
  */
 
-static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
+static int aes_cmac(struct crypto_shash *tfm, const u8 k[16], const u8 *m,
 		    size_t len, u8 mac[16])
 {
 	uint8_t tmp[16], mac_msb[16], msg_msb[CMAC_MSG_MAX];
-	struct hash_desc desc;
-	struct scatterlist sg;
+	SHASH_DESC_ON_STACK(desc, tfm);
 	int err;
 
 	if (len > CMAC_MSG_MAX)
@@ -181,10 +181,8 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
 		return -EINVAL;
 	}
 
-	desc.tfm = tfm;
-	desc.flags = 0;
-
-	crypto_hash_init(&desc);
+	desc->tfm = tfm;
+	desc->flags = 0;
 
 	/* Swap key and message from LSB to MSB */
 	swap_buf(k, tmp, 16);
@@ -193,23 +191,16 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
 	SMP_DBG("msg (len %zu) %*phN", len, (int) len, m);
 	SMP_DBG("key %16phN", k);
 
-	err = crypto_hash_setkey(tfm, tmp, 16);
+	err = crypto_shash_setkey(tfm, tmp, 16);
 	if (err) {
 		BT_ERR("cipher setkey failed: %d", err);
 		return err;
 	}
 
-	sg_init_one(&sg, msg_msb, len);
-
-	err = crypto_hash_update(&desc, &sg, len);
+	err = crypto_shash_digest(desc, msg_msb, len, mac_msb);
+	shash_desc_zero(desc);
 	if (err) {
-		BT_ERR("Hash update error %d", err);
-		return err;
-	}
-
-	err = crypto_hash_final(&desc, mac_msb);
-	if (err) {
-		BT_ERR("Hash final error %d", err);
+		BT_ERR("Hash computation error %d", err);
 		return err;
 	}
 
@@ -220,8 +211,8 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
 	return 0;
 }
 
-static int smp_f4(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
-		  const u8 x[16], u8 z, u8 res[16])
+static int smp_f4(struct crypto_shash *tfm_cmac, const u8 u[32],
+		  const u8 v[32], const u8 x[16], u8 z, u8 res[16])
 {
 	u8 m[65];
 	int err;
@@ -243,7 +234,7 @@ static int smp_f4(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
 	return err;
 }
 
-static int smp_f5(struct crypto_hash *tfm_cmac, const u8 w[32],
+static int smp_f5(struct crypto_shash *tfm_cmac, const u8 w[32],
 		  const u8 n1[16], const u8 n2[16], const u8 a1[7],
 		  const u8 a2[7], u8 mackey[16], u8 ltk[16])
 {
@@ -296,7 +287,7 @@ static int smp_f5(struct crypto_hash *tfm_cmac, const u8 w[32],
 	return 0;
 }
 
-static int smp_f6(struct crypto_hash *tfm_cmac, const u8 w[16],
+static int smp_f6(struct crypto_shash *tfm_cmac, const u8 w[16],
 		  const u8 n1[16], const u8 n2[16], const u8 r[16],
 		  const u8 io_cap[3], const u8 a1[7], const u8 a2[7],
 		  u8 res[16])
@@ -324,7 +315,7 @@ static int smp_f6(struct crypto_hash *tfm_cmac, const u8 w[16],
 	return err;
 }
 
-static int smp_g2(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
+static int smp_g2(struct crypto_shash *tfm_cmac, const u8 u[32], const u8 v[32],
 		  const u8 x[16], const u8 y[16], u32 *val)
 {
 	u8 m[80], tmp[16];
@@ -350,7 +341,7 @@ static int smp_g2(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
 	return 0;
 }
 
-static int smp_h6(struct crypto_hash *tfm_cmac, const u8 w[16],
+static int smp_h6(struct crypto_shash *tfm_cmac, const u8 w[16],
 		  const u8 key_id[4], u8 res[16])
 {
 	int err;
@@ -370,9 +361,9 @@ static int smp_h6(struct crypto_hash *tfm_cmac, const u8 w[16],
  * s1 and ah.
  */
 
-static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
+static int smp_e(struct crypto_skcipher *tfm, const u8 *k, u8 *r)
 {
-	struct blkcipher_desc desc;
+	SKCIPHER_REQUEST_ON_STACK(req, tfm);
 	struct scatterlist sg;
 	uint8_t tmp[16], data[16];
 	int err;
@@ -384,13 +375,10 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
 		return -EINVAL;
 	}
 
-	desc.tfm = tfm;
-	desc.flags = 0;
-
 	/* The most significant octet of key corresponds to k[0] */
 	swap_buf(k, tmp, 16);
 
-	err = crypto_blkcipher_setkey(tfm, tmp, 16);
+	err = crypto_skcipher_setkey(tfm, tmp, 16);
 	if (err) {
 		BT_ERR("cipher setkey failed: %d", err);
 		return err;
@@ -401,7 +389,12 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
 
 	sg_init_one(&sg, data, 16);
 
-	err = crypto_blkcipher_encrypt(&desc, &sg, &sg, 16);
+	skcipher_request_set_tfm(req, tfm);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sg, &sg, 16, NULL);
+
+	err = crypto_skcipher_encrypt(req);
+	skcipher_request_zero(req);
 	if (err)
 		BT_ERR("Encrypt data error %d", err);
 
@@ -413,7 +406,7 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
 	return err;
 }
 
-static int smp_c1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
+static int smp_c1(struct crypto_skcipher *tfm_aes, const u8 k[16],
 		  const u8 r[16], const u8 preq[7], const u8 pres[7], u8 _iat,
 		  const bdaddr_t *ia, u8 _rat, const bdaddr_t *ra, u8 res[16])
 {
@@ -462,7 +455,7 @@ static int smp_c1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
 	return err;
 }
 
-static int smp_s1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
+static int smp_s1(struct crypto_skcipher *tfm_aes, const u8 k[16],
 		  const u8 r1[16], const u8 r2[16], u8 _r[16])
 {
 	int err;
@@ -478,7 +471,7 @@ static int smp_s1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
 	return err;
 }
 
-static int smp_ah(struct crypto_blkcipher *tfm, const u8 irk[16],
+static int smp_ah(struct crypto_skcipher *tfm, const u8 irk[16],
 		  const u8 r[3], u8 res[3])
 {
 	u8 _res[16];
@@ -766,8 +759,8 @@ static void smp_chan_destroy(struct l2cap_conn *conn)
 	kzfree(smp->slave_csrk);
 	kzfree(smp->link_key);
 
-	crypto_free_blkcipher(smp->tfm_aes);
-	crypto_free_hash(smp->tfm_cmac);
+	crypto_free_skcipher(smp->tfm_aes);
+	crypto_free_shash(smp->tfm_cmac);
 
 	/* Ensure that we don't leave any debug key around if debug key
 	 * support hasn't been explicitly enabled.
@@ -1382,17 +1375,17 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
 	if (!smp)
 		return NULL;
 
-	smp->tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+	smp->tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(smp->tfm_aes)) {
 		BT_ERR("Unable to create ECB crypto context");
 		kzfree(smp);
 		return NULL;
 	}
 
-	smp->tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+	smp->tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, 0);
 	if (IS_ERR(smp->tfm_cmac)) {
 		BT_ERR("Unable to create CMAC crypto context");
-		crypto_free_blkcipher(smp->tfm_aes);
+		crypto_free_skcipher(smp->tfm_aes);
 		kzfree(smp);
 		return NULL;
 	}
@@ -3143,8 +3136,8 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid)
 {
 	struct l2cap_chan *chan;
 	struct smp_dev *smp;
-	struct crypto_blkcipher *tfm_aes;
-	struct crypto_hash *tfm_cmac;
+	struct crypto_skcipher *tfm_aes;
+	struct crypto_shash *tfm_cmac;
 
 	if (cid == L2CAP_CID_SMP_BREDR) {
 		smp = NULL;
@@ -3155,17 +3148,17 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid)
 	if (!smp)
 		return ERR_PTR(-ENOMEM);
 
-	tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+	tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm_aes)) {
 		BT_ERR("Unable to create ECB crypto context");
 		kzfree(smp);
 		return ERR_CAST(tfm_aes);
 	}
 
-	tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+	tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, 0);
 	if (IS_ERR(tfm_cmac)) {
 		BT_ERR("Unable to create CMAC crypto context");
-		crypto_free_blkcipher(tfm_aes);
+		crypto_free_skcipher(tfm_aes);
 		kzfree(smp);
 		return ERR_CAST(tfm_cmac);
 	}
@@ -3179,8 +3172,8 @@ create_chan:
 	chan = l2cap_chan_create();
 	if (!chan) {
 		if (smp) {
-			crypto_free_blkcipher(smp->tfm_aes);
-			crypto_free_hash(smp->tfm_cmac);
+			crypto_free_skcipher(smp->tfm_aes);
+			crypto_free_shash(smp->tfm_cmac);
 			kzfree(smp);
 		}
 		return ERR_PTR(-ENOMEM);
@@ -3226,10 +3219,8 @@ static void smp_del_chan(struct l2cap_chan *chan)
 	smp = chan->data;
 	if (smp) {
 		chan->data = NULL;
-		if (smp->tfm_aes)
-			crypto_free_blkcipher(smp->tfm_aes);
-		if (smp->tfm_cmac)
-			crypto_free_hash(smp->tfm_cmac);
+		crypto_free_skcipher(smp->tfm_aes);
+		crypto_free_shash(smp->tfm_cmac);
 		kzfree(smp);
 	}
 
@@ -3465,7 +3456,7 @@ void smp_unregister(struct hci_dev *hdev)
 
 #if IS_ENABLED(CONFIG_BT_SELFTEST_SMP)
 
-static int __init test_ah(struct crypto_blkcipher *tfm_aes)
+static int __init test_ah(struct crypto_skcipher *tfm_aes)
 {
 	const u8 irk[16] = {
 			0x9b, 0x7d, 0x39, 0x0a, 0xa6, 0x10, 0x10, 0x34,
@@ -3485,7 +3476,7 @@ static int __init test_ah(struct crypto_blkcipher *tfm_aes)
 	return 0;
 }
 
-static int __init test_c1(struct crypto_blkcipher *tfm_aes)
+static int __init test_c1(struct crypto_skcipher *tfm_aes)
 {
 	const u8 k[16] = {
 			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -3515,7 +3506,7 @@ static int __init test_c1(struct crypto_blkcipher *tfm_aes)
 	return 0;
 }
 
-static int __init test_s1(struct crypto_blkcipher *tfm_aes)
+static int __init test_s1(struct crypto_skcipher *tfm_aes)
 {
 	const u8 k[16] = {
 			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -3540,7 +3531,7 @@ static int __init test_s1(struct crypto_blkcipher *tfm_aes)
 	return 0;
 }
 
-static int __init test_f4(struct crypto_hash *tfm_cmac)
+static int __init test_f4(struct crypto_shash *tfm_cmac)
 {
 	const u8 u[32] = {
 			0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc,
@@ -3572,7 +3563,7 @@ static int __init test_f4(struct crypto_hash *tfm_cmac)
 	return 0;
 }
 
-static int __init test_f5(struct crypto_hash *tfm_cmac)
+static int __init test_f5(struct crypto_shash *tfm_cmac)
 {
 	const u8 w[32] = {
 			0x98, 0xa6, 0xbf, 0x73, 0xf3, 0x34, 0x8d, 0x86,
@@ -3609,7 +3600,7 @@ static int __init test_f5(struct crypto_hash *tfm_cmac)
 	return 0;
 }
 
-static int __init test_f6(struct crypto_hash *tfm_cmac)
+static int __init test_f6(struct crypto_shash *tfm_cmac)
 {
 	const u8 w[16] = {
 			0x20, 0x6e, 0x63, 0xce, 0x20, 0x6a, 0x3f, 0xfd,
@@ -3642,7 +3633,7 @@ static int __init test_f6(struct crypto_hash *tfm_cmac)
 	return 0;
 }
 
-static int __init test_g2(struct crypto_hash *tfm_cmac)
+static int __init test_g2(struct crypto_shash *tfm_cmac)
 {
 	const u8 u[32] = {
 			0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc,
@@ -3674,7 +3665,7 @@ static int __init test_g2(struct crypto_hash *tfm_cmac)
 	return 0;
 }
 
-static int __init test_h6(struct crypto_hash *tfm_cmac)
+static int __init test_h6(struct crypto_shash *tfm_cmac)
 {
 	const u8 w[16] = {
 			0x9b, 0x7d, 0x39, 0x0a, 0xa6, 0x10, 0x10, 0x34,
@@ -3711,8 +3702,8 @@ static const struct file_operations test_smp_fops = {
 	.llseek		= default_llseek,
 };
 
-static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
-				struct crypto_hash *tfm_cmac)
+static int __init run_selftests(struct crypto_skcipher *tfm_aes,
+				struct crypto_shash *tfm_cmac)
 {
 	ktime_t calltime, delta, rettime;
 	unsigned long long duration;
@@ -3789,27 +3780,27 @@ done:
 
 int __init bt_selftest_smp(void)
 {
-	struct crypto_blkcipher *tfm_aes;
-	struct crypto_hash *tfm_cmac;
+	struct crypto_skcipher *tfm_aes;
+	struct crypto_shash *tfm_cmac;
 	int err;
 
-	tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+	tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm_aes)) {
 		BT_ERR("Unable to create ECB crypto context");
 		return PTR_ERR(tfm_aes);
 	}
 
-	tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+	tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm_cmac)) {
 		BT_ERR("Unable to create CMAC crypto context");
-		crypto_free_blkcipher(tfm_aes);
+		crypto_free_skcipher(tfm_aes);
 		return PTR_ERR(tfm_cmac);
 	}
 
 	err = run_selftests(tfm_aes, tfm_cmac);
 
-	crypto_free_hash(tfm_cmac);
-	crypto_free_blkcipher(tfm_aes);
+	crypto_free_shash(tfm_cmac);
+	crypto_free_skcipher(tfm_aes);
 
 	return err;
 }

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#1316248 — Re: [PATCH 15/26] Bluetooth: Use skcipher and hash

FromMarcel Holtmann <marcel@holtmann.org>
Date2016-01-25 07:50 +0100
SubjectRe: [PATCH 15/26] Bluetooth: Use skcipher and hash
Message-ID<qUJ8l-8rY-5@gated-at.bofh.it>
In reply to#1315891
Hi Herbert,

> This patch replaces uses of blkcipher with skcipher and the long
> obsolete hash interface with shash.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Acked-by: Marcel Holtmann <marcel@holtmann.org>

> ---
> 
> net/bluetooth/smp.c |  135 ++++++++++++++++++++++++----------------------------
> 1 file changed, 63 insertions(+), 72 deletions(-)

Regards

Marcel

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