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-rw-r--r--meta/recipes-kernel/cryptodev/files/cb186f682679383e8b5806240927903730ce85d9.patch279
1 files changed, 279 insertions, 0 deletions
diff --git a/meta/recipes-kernel/cryptodev/files/cb186f682679383e8b5806240927903730ce85d9.patch b/meta/recipes-kernel/cryptodev/files/cb186f682679383e8b5806240927903730ce85d9.patch
new file mode 100644
index 00000000000..eb0eab63bdd
--- /dev/null
+++ b/meta/recipes-kernel/cryptodev/files/cb186f682679383e8b5806240927903730ce85d9.patch
@@ -0,0 +1,279 @@
+From cb186f682679383e8b5806240927903730ce85d9 Mon Sep 17 00:00:00 2001
+From: Michael Weiser <michael.weiser@gmx.de>
+Date: Fri, 5 Aug 2016 17:26:27 +0200
+Subject: [PATCH] Support skcipher in addition to ablkcipher API
+
+The ablkcipher API is being phased out[1]. The unified skcipher API
+seems to have made its entry with 4.3.[3, 4] By what can be seen from
+migration patches[1.ff.], it's a drop-in replacement.
+
+Also, deallocators such as crypto_free_skcipher() are NULL-safe now[2].
+
+Add a new header cipherapi.h to aid migration from ablkcipher to skcipher and
+retain support for old kernels. Make it decide which API to use and provide
+appropriate function calls and type definitions. Since the ablkcipher and
+skcipher APIs are so similar, those are mainly defines for corresponding
+pseudo-functions in namespace cryptodev_ derived directly from their API
+counterparts.
+
+Compiles and works (i.e. checks pass) with Debian testing 4.6.4 kernel
+as well as 4.8-rc2+ Linus git tree as of today. (Both require a fix for
+changed page access API[5].)
+
+[1] https://www.spinics.net/lists/linux-crypto/msg18133.html
+[2] https://www.spinics.net/lists/linux-crypto/msg18154.html, line 120
+[3] https://www.spinics.net/lists/linux-crypto/msg16373.html
+[4] https://www.spinics.net/lists/linux-crypto/msg16294.html
+[5] https://github.com/cryptodev-linux/cryptodev-linux/pull/14
+---
+ cipherapi.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ cryptlib.c | 40 ++++++++++++++++++----------------------
+ cryptlib.h | 6 ++++--
+ ioctl.c | 4 ++--
+ 4 files changed, 84 insertions(+), 26 deletions(-)
+ create mode 100644 cipherapi.h
+
+Upstream-Status: Backport [from master for 4.8 kernels]
+
+Index: cryptodev-linux-1.8/cipherapi.h
+===================================================================
+--- /dev/null
++++ cryptodev-linux-1.8/cipherapi.h
+@@ -0,0 +1,60 @@
++#ifndef CIPHERAPI_H
++# define CIPHERAPI_H
++
++#include <linux/version.h>
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
++# include <linux/crypto.h>
++
++typedef struct ablkcipher_alg cryptodev_blkcipher_alg_t;
++typedef struct crypto_ablkcipher cryptodev_crypto_blkcipher_t;
++typedef struct ablkcipher_request cryptodev_blkcipher_request_t;
++
++# define cryptodev_crypto_alloc_blkcipher crypto_alloc_ablkcipher
++# define cryptodev_crypto_blkcipher_alg crypto_ablkcipher_alg
++# define cryptodev_crypto_blkcipher_blocksize crypto_ablkcipher_blocksize
++# define cryptodev_crypto_blkcipher_ivsize crypto_ablkcipher_ivsize
++# define cryptodev_crypto_blkcipher_alignmask crypto_ablkcipher_alignmask
++# define cryptodev_crypto_blkcipher_setkey crypto_ablkcipher_setkey
++
++static inline void cryptodev_crypto_free_blkcipher(cryptodev_crypto_blkcipher_t *c) {
++ if (c)
++ crypto_free_ablkcipher(c);
++}
++
++# define cryptodev_blkcipher_request_alloc ablkcipher_request_alloc
++# define cryptodev_blkcipher_request_set_callback ablkcipher_request_set_callback
++
++static inline void cryptodev_blkcipher_request_free(cryptodev_blkcipher_request_t *r) {
++ if (r)
++ ablkcipher_request_free(r);
++}
++
++# define cryptodev_blkcipher_request_set_crypt ablkcipher_request_set_crypt
++# define cryptodev_crypto_blkcipher_encrypt crypto_ablkcipher_encrypt
++# define cryptodev_crypto_blkcipher_decrypt crypto_ablkcipher_decrypt
++# define cryptodev_crypto_blkcipher_tfm crypto_ablkcipher_tfm
++#else
++#include <crypto/skcipher.h>
++
++typedef struct skcipher_alg cryptodev_blkcipher_alg_t;
++typedef struct crypto_skcipher cryptodev_crypto_blkcipher_t;
++typedef struct skcipher_request cryptodev_blkcipher_request_t;
++
++# define cryptodev_crypto_alloc_blkcipher crypto_alloc_skcipher
++# define cryptodev_crypto_blkcipher_alg crypto_skcipher_alg
++# define cryptodev_crypto_blkcipher_blocksize crypto_skcipher_blocksize
++# define cryptodev_crypto_blkcipher_ivsize crypto_skcipher_ivsize
++# define cryptodev_crypto_blkcipher_alignmask crypto_skcipher_alignmask
++# define cryptodev_crypto_blkcipher_setkey crypto_skcipher_setkey
++# define cryptodev_crypto_free_blkcipher crypto_free_skcipher
++# define cryptodev_blkcipher_request_alloc skcipher_request_alloc
++# define cryptodev_blkcipher_request_set_callback skcipher_request_set_callback
++# define cryptodev_blkcipher_request_free skcipher_request_free
++# define cryptodev_blkcipher_request_set_crypt skcipher_request_set_crypt
++# define cryptodev_crypto_blkcipher_encrypt crypto_skcipher_encrypt
++# define cryptodev_crypto_blkcipher_decrypt crypto_skcipher_decrypt
++# define cryptodev_crypto_blkcipher_tfm crypto_skcipher_tfm
++#endif
++
++#endif
+Index: cryptodev-linux-1.8/cryptlib.c
+===================================================================
+--- cryptodev-linux-1.8.orig/cryptlib.c
++++ cryptodev-linux-1.8/cryptlib.c
+@@ -23,7 +23,6 @@
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+-#include <linux/crypto.h>
+ #include <linux/mm.h>
+ #include <linux/highmem.h>
+ #include <linux/ioctl.h>
+@@ -37,6 +36,7 @@
+ #include <linux/rtnetlink.h>
+ #include <crypto/authenc.h>
+ #include "cryptodev_int.h"
++#include "cipherapi.h"
+
+
+ struct cryptodev_result {
+@@ -133,15 +133,15 @@ int cryptodev_cipher_init(struct cipher_
+ int ret;
+
+ if (aead == 0) {
+- struct ablkcipher_alg *alg;
++ cryptodev_blkcipher_alg_t *alg;
+
+- out->async.s = crypto_alloc_ablkcipher(alg_name, 0, 0);
++ out->async.s = cryptodev_crypto_alloc_blkcipher(alg_name, 0, 0);
+ if (unlikely(IS_ERR(out->async.s))) {
+ ddebug(1, "Failed to load cipher %s", alg_name);
+ return -EINVAL;
+ }
+
+- alg = crypto_ablkcipher_alg(out->async.s);
++ alg = cryptodev_crypto_blkcipher_alg(out->async.s);
+ if (alg != NULL) {
+ /* Was correct key length supplied? */
+ if (alg->max_keysize > 0 &&
+@@ -154,11 +154,11 @@ int cryptodev_cipher_init(struct cipher_
+ }
+ }
+
+- out->blocksize = crypto_ablkcipher_blocksize(out->async.s);
+- out->ivsize = crypto_ablkcipher_ivsize(out->async.s);
+- out->alignmask = crypto_ablkcipher_alignmask(out->async.s);
++ out->blocksize = cryptodev_crypto_blkcipher_blocksize(out->async.s);
++ out->ivsize = cryptodev_crypto_blkcipher_ivsize(out->async.s);
++ out->alignmask = cryptodev_crypto_blkcipher_alignmask(out->async.s);
+
+- ret = crypto_ablkcipher_setkey(out->async.s, keyp, keylen);
++ ret = cryptodev_crypto_blkcipher_setkey(out->async.s, keyp, keylen);
+ } else {
+ out->async.as = crypto_alloc_aead(alg_name, 0, 0);
+ if (unlikely(IS_ERR(out->async.as))) {
+@@ -191,14 +191,14 @@ int cryptodev_cipher_init(struct cipher_
+ init_completion(&out->async.result->completion);
+
+ if (aead == 0) {
+- out->async.request = ablkcipher_request_alloc(out->async.s, GFP_KERNEL);
++ out->async.request = cryptodev_blkcipher_request_alloc(out->async.s, GFP_KERNEL);
+ if (unlikely(!out->async.request)) {
+ derr(1, "error allocating async crypto request");
+ ret = -ENOMEM;
+ goto error;
+ }
+
+- ablkcipher_request_set_callback(out->async.request,
++ cryptodev_blkcipher_request_set_callback(out->async.request,
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ cryptodev_complete, out->async.result);
+ } else {
+@@ -218,10 +218,8 @@ int cryptodev_cipher_init(struct cipher_
+ return 0;
+ error:
+ if (aead == 0) {
+- if (out->async.request)
+- ablkcipher_request_free(out->async.request);
+- if (out->async.s)
+- crypto_free_ablkcipher(out->async.s);
++ cryptodev_blkcipher_request_free(out->async.request);
++ cryptodev_crypto_free_blkcipher(out->async.s);
+ } else {
+ if (out->async.arequest)
+ aead_request_free(out->async.arequest);
+@@ -237,10 +235,8 @@ void cryptodev_cipher_deinit(struct ciph
+ {
+ if (cdata->init) {
+ if (cdata->aead == 0) {
+- if (cdata->async.request)
+- ablkcipher_request_free(cdata->async.request);
+- if (cdata->async.s)
+- crypto_free_ablkcipher(cdata->async.s);
++ cryptodev_blkcipher_request_free(cdata->async.request);
++ cryptodev_crypto_free_blkcipher(cdata->async.s);
+ } else {
+ if (cdata->async.arequest)
+ aead_request_free(cdata->async.arequest);
+@@ -289,10 +285,10 @@ ssize_t cryptodev_cipher_encrypt(struct
+ reinit_completion(&cdata->async.result->completion);
+
+ if (cdata->aead == 0) {
+- ablkcipher_request_set_crypt(cdata->async.request,
++ cryptodev_blkcipher_request_set_crypt(cdata->async.request,
+ (struct scatterlist *)src, dst,
+ len, cdata->async.iv);
+- ret = crypto_ablkcipher_encrypt(cdata->async.request);
++ ret = cryptodev_crypto_blkcipher_encrypt(cdata->async.request);
+ } else {
+ aead_request_set_crypt(cdata->async.arequest,
+ (struct scatterlist *)src, dst,
+@@ -311,10 +307,10 @@ ssize_t cryptodev_cipher_decrypt(struct
+
+ reinit_completion(&cdata->async.result->completion);
+ if (cdata->aead == 0) {
+- ablkcipher_request_set_crypt(cdata->async.request,
++ cryptodev_blkcipher_request_set_crypt(cdata->async.request,
+ (struct scatterlist *)src, dst,
+ len, cdata->async.iv);
+- ret = crypto_ablkcipher_decrypt(cdata->async.request);
++ ret = cryptodev_crypto_blkcipher_decrypt(cdata->async.request);
+ } else {
+ aead_request_set_crypt(cdata->async.arequest,
+ (struct scatterlist *)src, dst,
+Index: cryptodev-linux-1.8/cryptlib.h
+===================================================================
+--- cryptodev-linux-1.8.orig/cryptlib.h
++++ cryptodev-linux-1.8/cryptlib.h
+@@ -3,6 +3,8 @@
+
+ #include <linux/version.h>
+
++#include "cipherapi.h"
++
+ struct cipher_data {
+ int init; /* 0 uninitialized */
+ int blocksize;
+@@ -12,8 +14,8 @@ struct cipher_data {
+ int alignmask;
+ struct {
+ /* block ciphers */
+- struct crypto_ablkcipher *s;
+- struct ablkcipher_request *request;
++ cryptodev_crypto_blkcipher_t *s;
++ cryptodev_blkcipher_request_t *request;
+
+ /* AEAD ciphers */
+ struct crypto_aead *as;
+Index: cryptodev-linux-1.8/ioctl.c
+===================================================================
+--- cryptodev-linux-1.8.orig/ioctl.c
++++ cryptodev-linux-1.8/ioctl.c
+@@ -34,7 +34,6 @@
+ */
+
+ #include <crypto/hash.h>
+-#include <linux/crypto.h>
+ #include <linux/mm.h>
+ #include <linux/highmem.h>
+ #include <linux/ioctl.h>
+@@ -53,6 +52,7 @@
+ #include "cryptodev_int.h"
+ #include "zc.h"
+ #include "version.h"
++#include "cipherapi.h"
+
+ MODULE_AUTHOR("Nikos Mavrogiannopoulos <nmav@gnutls.org>");
+ MODULE_DESCRIPTION("CryptoDev driver");
+@@ -765,7 +765,7 @@ static int get_session_info(struct fcryp
+
+ if (ses_ptr->cdata.init) {
+ if (ses_ptr->cdata.aead == 0)
+- tfm = crypto_ablkcipher_tfm(ses_ptr->cdata.async.s);
++ tfm = cryptodev_crypto_blkcipher_tfm(ses_ptr->cdata.async.s);
+ else
+ tfm = crypto_aead_tfm(ses_ptr->cdata.async.as);
+ tfm_info_to_alg_info(&siop->cipher_info, tfm);