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-rw-r--r--fs/ext4/crypto.c24
-rw-r--r--fs/ext4/crypto_fname.c32
-rw-r--r--fs/ext4/crypto_key.c42
-rw-r--r--fs/ext4/ext4_crypto.h2
-rw-r--r--fs/ext4/file.c19
-rw-r--r--fs/ext4/inode.c6
-rw-r--r--fs/ext4/ioctl.c5
7 files changed, 59 insertions, 71 deletions
diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index 38f7562..edc053a 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 9a16d1e..0129d68 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;
@@ -237,7 +235,7 @@ 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
@@ -246,11 +244,11 @@ 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];
};
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index e93a7ef..6659e21 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -256,23 +256,8 @@ static int ext4_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
return result;
}
-static int ext4_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- int err;
- struct inode *inode = file_inode(vma->vm_file);
-
- sb_start_pagefault(inode->i_sb);
- file_update_time(vma->vm_file);
- down_read(&EXT4_I(inode)->i_mmap_sem);
- err = __dax_mkwrite(vma, vmf, ext4_dax_mmap_get_block, NULL);
- up_read(&EXT4_I(inode)->i_mmap_sem);
- sb_end_pagefault(inode->i_sb);
-
- return err;
-}
-
/*
- * Handle write fault for VM_MIXEDMAP mappings. Similarly to ext4_dax_mkwrite()
+ * Handle write fault for VM_MIXEDMAP mappings. Similarly to ext4_dax_fault()
* handler we check for races agaist truncate. Note that since we cycle through
* i_mmap_sem, we are sure that also any hole punching that began before we
* were called is finished by now and so if it included part of the file we
@@ -305,7 +290,7 @@ static int ext4_dax_pfn_mkwrite(struct vm_area_struct *vma,
static const struct vm_operations_struct ext4_dax_vm_ops = {
.fault = ext4_dax_fault,
.pmd_fault = ext4_dax_pmd_fault,
- .page_mkwrite = ext4_dax_mkwrite,
+ .page_mkwrite = ext4_dax_fault,
.pfn_mkwrite = ext4_dax_pfn_mkwrite,
};
#else
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index b41432e..b2e9576 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2606,6 +2606,10 @@ static int ext4_writepages(struct address_space *mapping,
trace_ext4_writepages(inode, wbc);
+ if (dax_mapping(mapping))
+ return dax_writeback_mapping_range(mapping, inode->i_sb->s_bdev,
+ wbc);
+
/*
* No pages to write? This is mainly a kludge to avoid starting
* a transaction for special inodes like journal inode on last iput()
@@ -4210,7 +4214,7 @@ void ext4_set_inode_flags(struct inode *inode)
new_fl |= S_NOATIME;
if (flags & EXT4_DIRSYNC_FL)
new_fl |= S_DIRSYNC;
- if (test_opt(inode->i_sb, DAX))
+ if (test_opt(inode->i_sb, DAX) && S_ISREG(inode->i_mode))
new_fl |= S_DAX;
inode_set_flags(inode, new_fl,
S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a99b010..eae5917 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -583,6 +583,11 @@ group_extend_out:
"Online defrag not supported with bigalloc");
err = -EOPNOTSUPP;
goto mext_out;
+ } else if (IS_DAX(inode)) {
+ ext4_msg(sb, KERN_ERR,
+ "Online defrag not supported with DAX");
+ err = -EOPNOTSUPP;
+ goto mext_out;
}
err = mnt_want_write_file(filp);
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