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-rw-r--r--fs/ecryptfs/crypto.c42
-rw-r--r--fs/ecryptfs/debug.c22
-rw-r--r--fs/ecryptfs/inode.c2
-rw-r--r--fs/ecryptfs/keystore.c9
4 files changed, 34 insertions, 41 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 91d65f337d87..f91db24bbf3b 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <asm/unaligned.h>
#include <linux/kernel.h>
+#include <linux/xattr.h>
#include "ecryptfs_kernel.h"
#define DECRYPT 0
@@ -860,13 +861,10 @@ static struct ecryptfs_flag_map_elem ecryptfs_flag_map[] = {
* @crypt_stat: The cryptographic context
* @page_virt: Source data to be parsed
* @bytes_read: Updated with the number of bytes read
- *
- * Returns zero on success; non-zero if the flag set is invalid
*/
-static int ecryptfs_process_flags(struct ecryptfs_crypt_stat *crypt_stat,
+static void ecryptfs_process_flags(struct ecryptfs_crypt_stat *crypt_stat,
char *page_virt, int *bytes_read)
{
- int rc = 0;
int i;
u32 flags;
@@ -879,7 +877,6 @@ static int ecryptfs_process_flags(struct ecryptfs_crypt_stat *crypt_stat,
/* Version is in top 8 bits of the 32-bit flag vector */
crypt_stat->file_version = ((flags >> 24) & 0xFF);
(*bytes_read) = 4;
- return rc;
}
/**
@@ -1004,8 +1001,10 @@ int ecryptfs_read_and_validate_header_region(struct inode *inode)
rc = ecryptfs_read_lower(file_size, 0, ECRYPTFS_SIZE_AND_MARKER_BYTES,
inode);
- if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
- return rc >= 0 ? -EINVAL : rc;
+ if (rc < 0)
+ return rc;
+ else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+ return -EINVAL;
rc = ecryptfs_validate_marker(marker);
if (!rc)
ecryptfs_i_size_init(file_size, inode);
@@ -1115,9 +1114,21 @@ ecryptfs_write_metadata_to_xattr(struct dentry *ecryptfs_dentry,
char *page_virt, size_t size)
{
int rc;
+ struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
+ struct inode *lower_inode = d_inode(lower_dentry);
- rc = ecryptfs_setxattr(ecryptfs_dentry, ecryptfs_inode,
- ECRYPTFS_XATTR_NAME, page_virt, size, 0);
+ if (!(lower_inode->i_opflags & IOP_XATTR)) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+
+ inode_lock(lower_inode);
+ rc = __vfs_setxattr(lower_dentry, lower_inode, ECRYPTFS_XATTR_NAME,
+ page_virt, size, 0);
+ if (!rc && ecryptfs_inode)
+ fsstack_copy_attr_all(ecryptfs_inode, lower_inode);
+ inode_unlock(lower_inode);
+out:
return rc;
}
@@ -1291,12 +1302,7 @@ static int ecryptfs_read_headers_virt(char *page_virt,
if (!(crypt_stat->flags & ECRYPTFS_I_SIZE_INITIALIZED))
ecryptfs_i_size_init(page_virt, d_inode(ecryptfs_dentry));
offset += MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
- rc = ecryptfs_process_flags(crypt_stat, (page_virt + offset),
- &bytes_read);
- if (rc) {
- ecryptfs_printk(KERN_WARNING, "Error processing flags\n");
- goto out;
- }
+ ecryptfs_process_flags(crypt_stat, (page_virt + offset), &bytes_read);
if (crypt_stat->file_version > ECRYPTFS_SUPPORTED_FILE_VERSION) {
ecryptfs_printk(KERN_WARNING, "File version is [%d]; only "
"file version [%d] is supported by this "
@@ -1367,8 +1373,10 @@ int ecryptfs_read_and_validate_xattr_region(struct dentry *dentry,
ecryptfs_inode_to_lower(inode),
ECRYPTFS_XATTR_NAME, file_size,
ECRYPTFS_SIZE_AND_MARKER_BYTES);
- if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
- return rc >= 0 ? -EINVAL : rc;
+ if (rc < 0)
+ return rc;
+ else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+ return -EINVAL;
rc = ecryptfs_validate_marker(marker);
if (!rc)
ecryptfs_i_size_init(file_size, inode);
diff --git a/fs/ecryptfs/debug.c b/fs/ecryptfs/debug.c
index d131d070826f..1f65e99f9a41 100644
--- a/fs/ecryptfs/debug.c
+++ b/fs/ecryptfs/debug.c
@@ -83,25 +83,9 @@ void ecryptfs_dump_auth_tok(struct ecryptfs_auth_tok *auth_tok)
*/
void ecryptfs_dump_hex(char *data, int bytes)
{
- int i = 0;
- int add_newline = 1;
-
if (ecryptfs_verbosity < 1)
return;
- if (bytes != 0) {
- printk(KERN_DEBUG "0x%.2x.", (unsigned char)data[i]);
- i++;
- }
- while (i < bytes) {
- printk("0x%.2x.", (unsigned char)data[i]);
- i++;
- if (i % 16 == 0) {
- printk("\n");
- add_newline = 0;
- } else
- add_newline = 1;
- }
- if (add_newline)
- printk("\n");
-}
+ print_hex_dump(KERN_DEBUG, "ecryptfs: ", DUMP_PREFIX_OFFSET, 16, 1,
+ data, bytes, false);
+}
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 1e994d780f37..18426f4855f1 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1121,7 +1121,7 @@ static int ecryptfs_xattr_set(const struct xattr_handler *handler,
}
}
-const struct xattr_handler ecryptfs_xattr_handler = {
+static const struct xattr_handler ecryptfs_xattr_handler = {
.prefix = "", /* match anything */
.get = ecryptfs_xattr_get,
.set = ecryptfs_xattr_set,
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 9536e592e25a..216fbe6a4837 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1048,8 +1048,9 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
"rc = [%d]\n", __func__, rc);
goto out_free_unlock;
}
- while (s->decrypted_filename[s->i] != '\0'
- && s->i < s->block_aligned_filename_size)
+
+ while (s->i < s->block_aligned_filename_size &&
+ s->decrypted_filename[s->i] != '\0')
s->i++;
if (s->i == s->block_aligned_filename_size) {
printk(KERN_WARNING "%s: Invalid tag 70 packet; could not "
@@ -1611,9 +1612,9 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
int rc = 0;
(*auth_tok_key) = request_key(&key_type_user, sig, NULL);
- if (!(*auth_tok_key) || IS_ERR(*auth_tok_key)) {
+ if (IS_ERR(*auth_tok_key)) {
(*auth_tok_key) = ecryptfs_get_encrypted_key(sig);
- if (!(*auth_tok_key) || IS_ERR(*auth_tok_key)) {
+ if (IS_ERR(*auth_tok_key)) {
printk(KERN_ERR "Could not find key with description: [%s]\n",
sig);
rc = process_request_key_err(PTR_ERR(*auth_tok_key));
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-14 02:58:05 +0000