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Diffstat (limited to 'fs/ecryptfs/crypto.c')
-rw-r--r--fs/ecryptfs/crypto.c49
1 files changed, 20 insertions, 29 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 11255cbcb2db..d09cb4cdd09f 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -286,7 +286,7 @@ int virt_to_scatterlist(const void *addr, int size, struct scatterlist *sg,
pg = virt_to_page(addr);
offset = offset_in_page(addr);
sg_set_page(&sg[i], pg, 0, offset);
- remainder_of_page = PAGE_CACHE_SIZE - offset;
+ remainder_of_page = PAGE_SIZE - offset;
if (size >= remainder_of_page) {
sg[i].length = remainder_of_page;
addr += remainder_of_page;
@@ -400,7 +400,7 @@ static loff_t lower_offset_for_page(struct ecryptfs_crypt_stat *crypt_stat,
struct page *page)
{
return ecryptfs_lower_header_size(crypt_stat) +
- ((loff_t)page->index << PAGE_CACHE_SHIFT);
+ ((loff_t)page->index << PAGE_SHIFT);
}
/**
@@ -428,7 +428,7 @@ static int crypt_extent(struct ecryptfs_crypt_stat *crypt_stat,
size_t extent_size = crypt_stat->extent_size;
int rc;
- extent_base = (((loff_t)page_index) * (PAGE_CACHE_SIZE / extent_size));
+ extent_base = (((loff_t)page_index) * (PAGE_SIZE / extent_size));
rc = ecryptfs_derive_iv(extent_iv, crypt_stat,
(extent_base + extent_offset));
if (rc) {
@@ -498,7 +498,7 @@ int ecryptfs_encrypt_page(struct page *page)
}
for (extent_offset = 0;
- extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);
+ extent_offset < (PAGE_SIZE / crypt_stat->extent_size);
extent_offset++) {
rc = crypt_extent(crypt_stat, enc_extent_page, page,
extent_offset, ENCRYPT);
@@ -512,7 +512,7 @@ int ecryptfs_encrypt_page(struct page *page)
lower_offset = lower_offset_for_page(crypt_stat, page);
enc_extent_virt = kmap(enc_extent_page);
rc = ecryptfs_write_lower(ecryptfs_inode, enc_extent_virt, lower_offset,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
kunmap(enc_extent_page);
if (rc < 0) {
ecryptfs_printk(KERN_ERR,
@@ -560,7 +560,7 @@ int ecryptfs_decrypt_page(struct page *page)
lower_offset = lower_offset_for_page(crypt_stat, page);
page_virt = kmap(page);
- rc = ecryptfs_read_lower(page_virt, lower_offset, PAGE_CACHE_SIZE,
+ rc = ecryptfs_read_lower(page_virt, lower_offset, PAGE_SIZE,
ecryptfs_inode);
kunmap(page);
if (rc < 0) {
@@ -571,7 +571,7 @@ int ecryptfs_decrypt_page(struct page *page)
}
for (extent_offset = 0;
- extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);
+ extent_offset < (PAGE_SIZE / crypt_stat->extent_size);
extent_offset++) {
rc = crypt_extent(crypt_stat, page, page,
extent_offset, DECRYPT);
@@ -659,11 +659,11 @@ void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)
if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
else {
- if (PAGE_CACHE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
+ if (PAGE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
crypt_stat->metadata_size =
ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
else
- crypt_stat->metadata_size = PAGE_CACHE_SIZE;
+ crypt_stat->metadata_size = PAGE_SIZE;
}
}
@@ -1442,7 +1442,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
ECRYPTFS_VALIDATE_HEADER_SIZE);
if (rc) {
/* metadata is not in the file header, so try xattrs */
- memset(page_virt, 0, PAGE_CACHE_SIZE);
+ memset(page_virt, 0, PAGE_SIZE);
rc = ecryptfs_read_xattr_region(page_virt, ecryptfs_inode);
if (rc) {
printk(KERN_DEBUG "Valid eCryptfs headers not found in "
@@ -1475,7 +1475,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
}
out:
if (page_virt) {
- memset(page_virt, 0, PAGE_CACHE_SIZE);
+ memset(page_virt, 0, PAGE_SIZE);
kmem_cache_free(ecryptfs_header_cache, page_virt);
}
return rc;
@@ -1492,16 +1492,14 @@ out:
*/
static int
ecryptfs_encrypt_filename(struct ecryptfs_filename *filename,
- struct ecryptfs_crypt_stat *crypt_stat,
struct ecryptfs_mount_crypt_stat *mount_crypt_stat)
{
int rc = 0;
filename->encrypted_filename = NULL;
filename->encrypted_filename_size = 0;
- if ((crypt_stat && (crypt_stat->flags & ECRYPTFS_ENCFN_USE_MOUNT_FNEK))
- || (mount_crypt_stat && (mount_crypt_stat->flags
- & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK))) {
+ if (mount_crypt_stat && (mount_crypt_stat->flags
+ & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK)) {
size_t packet_size;
size_t remaining_bytes;
@@ -1933,7 +1931,6 @@ out:
int ecryptfs_encrypt_and_encode_filename(
char **encoded_name,
size_t *encoded_name_size,
- struct ecryptfs_crypt_stat *crypt_stat,
struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
const char *name, size_t name_size)
{
@@ -1942,9 +1939,8 @@ int ecryptfs_encrypt_and_encode_filename(
(*encoded_name) = NULL;
(*encoded_name_size) = 0;
- if ((crypt_stat && (crypt_stat->flags & ECRYPTFS_ENCRYPT_FILENAMES))
- || (mount_crypt_stat && (mount_crypt_stat->flags
- & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES))) {
+ if (mount_crypt_stat && (mount_crypt_stat->flags
+ & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES)) {
struct ecryptfs_filename *filename;
filename = kzalloc(sizeof(*filename), GFP_KERNEL);
@@ -1957,8 +1953,7 @@ int ecryptfs_encrypt_and_encode_filename(
}
filename->filename = (char *)name;
filename->filename_size = name_size;
- rc = ecryptfs_encrypt_filename(filename, crypt_stat,
- mount_crypt_stat);
+ rc = ecryptfs_encrypt_filename(filename, mount_crypt_stat);
if (rc) {
printk(KERN_ERR "%s: Error attempting to encrypt "
"filename; rc = [%d]\n", __func__, rc);
@@ -1969,11 +1964,9 @@ int ecryptfs_encrypt_and_encode_filename(
NULL, &encoded_name_no_prefix_size,
filename->encrypted_filename,
filename->encrypted_filename_size);
- if ((crypt_stat && (crypt_stat->flags
- & ECRYPTFS_ENCFN_USE_MOUNT_FNEK))
- || (mount_crypt_stat
+ if (mount_crypt_stat
&& (mount_crypt_stat->flags
- & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK)))
+ & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK))
(*encoded_name_size) =
(ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE
+ encoded_name_no_prefix_size);
@@ -1991,11 +1984,9 @@ int ecryptfs_encrypt_and_encode_filename(
kfree(filename);
goto out;
}
- if ((crypt_stat && (crypt_stat->flags
- & ECRYPTFS_ENCFN_USE_MOUNT_FNEK))
- || (mount_crypt_stat
+ if (mount_crypt_stat
&& (mount_crypt_stat->flags
- & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK))) {
+ & ECRYPTFS_GLOBAL_ENCFN_USE_MOUNT_FNEK)) {
memcpy((*encoded_name),
ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX,
ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE);
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-30 10:50:21 +0000