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sanitize xattr handler prototypes

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Add a flags argument to struct xattr_handler and pass it to all xattr
handler methods.  This allows using the same methods for multiple
handlers, e.g. for the ACL methods which perform exactly the same action
for the access and default ACLs, just using a different underlying
attribute.  With a little more groundwork it'll also allow sharing the
methods for the regular user/trusted/secure handlers in extN, ocfs2 and
jffs2 like it's already done for xfs in this patch.

Also change the inode argument to the handlers to a dentry to allow
using the handlers mechnism for filesystems that require it later,
e.g. cifs.

[with GFS2 bits updated by Steven Whitehouse <swhiteho@redhat.com>]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2009-11-13 09:52:56 +00:00 committed by Al Viro
parent ef26ca97e8
commit 431547b3c4
39 changed files with 533 additions and 815 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
fs/btrfs/acl.c
View File

@ -73,13 +73,13 @@ static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
return acl;
}
static int btrfs_xattr_get_acl(struct inode *inode, int type,
void *value, size_t size)
static int btrfs_xattr_acl_get(struct dentry *dentry, const char *name,
void *value, size_t size, int type)
{
struct posix_acl *acl;
int ret = 0;
acl = btrfs_get_acl(inode, type);
acl = btrfs_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
@ -151,8 +151,8 @@ out:
return ret;
}
static int btrfs_xattr_set_acl(struct inode *inode, int type,
const void *value, size_t size)
static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
int ret = 0;
struct posix_acl *acl = NULL;
@ -167,38 +167,13 @@ static int btrfs_xattr_set_acl(struct inode *inode, int type,
}
}
ret = btrfs_set_acl(inode, acl, type);
ret = btrfs_set_acl(dentry->d_inode, acl, type);
posix_acl_release(acl);
return ret;
}
static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name,
void *value, size_t size)
{
return btrfs_xattr_get_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return btrfs_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name,
void *value, size_t size)
{
return btrfs_xattr_get_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return btrfs_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
int btrfs_check_acl(struct inode *inode, int mask)
{
struct posix_acl *acl;
@ -303,14 +278,16 @@ int btrfs_acl_chmod(struct inode *inode)
struct xattr_handler btrfs_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.get = btrfs_xattr_acl_default_get,
.set = btrfs_xattr_acl_default_set,
.flags = ACL_TYPE_DEFAULT,
.get = btrfs_xattr_acl_get,
.set = btrfs_xattr_acl_set,
};
struct xattr_handler btrfs_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.get = btrfs_xattr_acl_access_get,
.set = btrfs_xattr_acl_access_set,
.flags = ACL_TYPE_ACCESS,
.get = btrfs_xattr_acl_get,
.set = btrfs_xattr_acl_set,
};
#else /* CONFIG_BTRFS_FS_POSIX_ACL */

79
fs/ext2/acl.c
View File

@ -339,12 +339,12 @@ ext2_acl_chmod(struct inode *inode)
* Extended attribut handlers
*/
static size_t
ext2_xattr_list_acl_access(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext2_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_size)
memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
@ -352,12 +352,12 @@ ext2_xattr_list_acl_access(struct inode *inode, char *list, size_t list_size,
}
static size_t
ext2_xattr_list_acl_default(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext2_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_size)
memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
@ -365,15 +365,18 @@ ext2_xattr_list_acl_default(struct inode *inode, char *list, size_t list_size,
}
static int
ext2_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
ext2_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(dentry->d_sb, POSIX_ACL))
return -EOPNOTSUPP;
acl = ext2_get_acl(inode, type);
acl = ext2_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -385,33 +388,17 @@ ext2_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
}
static int
ext2_xattr_get_acl_access(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext2_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
ext2_xattr_get_acl_default(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext2_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
ext2_xattr_set_acl(struct inode *inode, int type, const void *value,
size_t size)
ext2_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int type)
{
struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(dentry->d_sb, POSIX_ACL))
return -EOPNOTSUPP;
if (!is_owner_or_cap(inode))
if (!is_owner_or_cap(dentry->d_inode))
return -EPERM;
if (value) {
@ -426,41 +413,25 @@ ext2_xattr_set_acl(struct inode *inode, int type, const void *value,
} else
acl = NULL;
error = ext2_set_acl(inode, type, acl);
error = ext2_set_acl(dentry->d_inode, type, acl);
release_and_out:
posix_acl_release(acl);
return error;
}
static int
ext2_xattr_set_acl_access(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext2_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int
ext2_xattr_set_acl_default(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext2_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
struct xattr_handler ext2_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
.list = ext2_xattr_list_acl_access,
.get = ext2_xattr_get_acl_access,
.set = ext2_xattr_set_acl_access,
.get = ext2_xattr_get_acl,
.set = ext2_xattr_set_acl,
};
struct xattr_handler ext2_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.list = ext2_xattr_list_acl_default,
.get = ext2_xattr_get_acl_default,
.set = ext2_xattr_set_acl_default,
.get = ext2_xattr_get_acl,
.set = ext2_xattr_set_acl,
};

11
fs/ext2/xattr.c
View File

@ -60,6 +60,7 @@
#include <linux/mbcache.h>
#include <linux/quotaops.h>
#include <linux/rwsem.h>
#include <linux/security.h>
#include "ext2.h"
#include "xattr.h"
#include "acl.h"
@ -249,8 +250,9 @@ cleanup:
* used / required on success.
*/
static int
ext2_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct buffer_head *bh = NULL;
struct ext2_xattr_entry *entry;
char *end;
@ -300,9 +302,10 @@ bad_block: ext2_error(inode->i_sb, "ext2_xattr_list",
ext2_xattr_handler(entry->e_name_index);
if (handler) {
size_t size = handler->list(inode, buffer, rest,
size_t size = handler->list(dentry, buffer, rest,
entry->e_name,
entry->e_name_len);
entry->e_name_len,
handler->flags);
if (buffer) {
if (size > rest) {
error = -ERANGE;
@ -330,7 +333,7 @@ cleanup:
ssize_t
ext2_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
return ext2_xattr_list(dentry->d_inode, buffer, size);
return ext2_xattr_list(dentry, buffer, size);
}
/*

16
fs/ext2/xattr_security.c
View File

@ -11,8 +11,8 @@
#include "xattr.h"
static size_t
ext2_xattr_security_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext2_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const int prefix_len = XATTR_SECURITY_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -26,22 +26,22 @@ ext2_xattr_security_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext2_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext2_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
return ext2_xattr_get(dentry->d_inode, EXT2_XATTR_INDEX_SECURITY, name,
buffer, size);
}
static int
ext2_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext2_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name,
return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_SECURITY, name,
value, size, flags);
}

16
fs/ext2/xattr_trusted.c
View File

@ -13,8 +13,8 @@
#include "xattr.h"
static size_t
ext2_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext2_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const int prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -31,22 +31,22 @@ ext2_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext2_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext2_xattr_trusted_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
return ext2_xattr_get(dentry->d_inode, EXT2_XATTR_INDEX_TRUSTED, name,
buffer, size);
}
static int
ext2_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext2_xattr_trusted_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_TRUSTED, name,
value, size, flags);
}

25
fs/ext2/xattr_user.c
View File

@ -12,13 +12,13 @@
#include "xattr.h"
static size_t
ext2_xattr_user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext2_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return 0;
if (list && total_len <= list_size) {
@ -30,27 +30,28 @@ ext2_xattr_user_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext2_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext2_xattr_user_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext2_xattr_get(inode, EXT2_XATTR_INDEX_USER, name, buffer, size);
return ext2_xattr_get(dentry->d_inode, EXT2_XATTR_INDEX_USER,
name, buffer, size);
}
static int
ext2_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext2_xattr_user_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext2_xattr_set(inode, EXT2_XATTR_INDEX_USER, name,
value, size, flags);
return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_USER,
name, value, size, flags);
}
struct xattr_handler ext2_xattr_user_handler = {

74
fs/ext3/acl.c
View File

@ -366,12 +366,12 @@ out:
* Extended attribute handlers
*/
static size_t
ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
ext3_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_len,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_len)
memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
@ -379,12 +379,12 @@ ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
}
static size_t
ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
ext3_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_len,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_len)
memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
@ -392,15 +392,18 @@ ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
}
static int
ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
ext3_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(dentry->d_sb, POSIX_ACL))
return -EOPNOTSUPP;
acl = ext3_get_acl(inode, type);
acl = ext3_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -412,31 +415,16 @@ ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
}
static int
ext3_xattr_get_acl_access(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
ext3_xattr_get_acl_default(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
size_t size)
ext3_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int type)
{
struct inode *inode = dentry->d_inode;
handle_t *handle;
struct posix_acl *acl;
int error, retries = 0;
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
if (!is_owner_or_cap(inode))
@ -468,34 +456,18 @@ release_and_out:
return error;
}
static int
ext3_xattr_set_acl_access(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int
ext3_xattr_set_acl_default(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
struct xattr_handler ext3_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
.list = ext3_xattr_list_acl_access,
.get = ext3_xattr_get_acl_access,
.set = ext3_xattr_set_acl_access,
.get = ext3_xattr_get_acl,
.set = ext3_xattr_set_acl,
};
struct xattr_handler ext3_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.list = ext3_xattr_list_acl_default,
.get = ext3_xattr_get_acl_default,
.set = ext3_xattr_set_acl_default,
.get = ext3_xattr_get_acl,
.set = ext3_xattr_set_acl,
};

31
fs/ext3/xattr.c
View File

@ -99,7 +99,7 @@ static struct buffer_head *ext3_xattr_cache_find(struct inode *,
struct mb_cache_entry **);
static void ext3_xattr_rehash(struct ext3_xattr_header *,
struct ext3_xattr_entry *);
static int ext3_xattr_list(struct inode *inode, char *buffer,
static int ext3_xattr_list(struct dentry *dentry, char *buffer,
size_t buffer_size);
static struct mb_cache *ext3_xattr_cache;
@ -147,7 +147,7 @@ ext3_xattr_handler(int name_index)
ssize_t
ext3_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
return ext3_xattr_list(dentry->d_inode, buffer, size);
return ext3_xattr_list(dentry, buffer, size);
}
static int
@ -332,7 +332,7 @@ ext3_xattr_get(struct inode *inode, int name_index, const char *name,
}
static int
ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
char *buffer, size_t buffer_size)
{
size_t rest = buffer_size;
@ -342,9 +342,10 @@ ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
ext3_xattr_handler(entry->e_name_index);
if (handler) {
size_t size = handler->list(inode, buffer, rest,
size_t size = handler->list(dentry, buffer, rest,
entry->e_name,
entry->e_name_len);
entry->e_name_len,
handler->flags);
if (buffer) {
if (size > rest)
return -ERANGE;
@ -357,8 +358,9 @@ ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
}
static int
ext3_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
ext3_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct buffer_head *bh = NULL;
int error;
@ -383,7 +385,7 @@ ext3_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
goto cleanup;
}
ext3_xattr_cache_insert(bh);
error = ext3_xattr_list_entries(inode, BFIRST(bh), buffer, buffer_size);
error = ext3_xattr_list_entries(dentry, BFIRST(bh), buffer, buffer_size);
cleanup:
brelse(bh);
@ -392,8 +394,9 @@ cleanup:
}
static int
ext3_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
ext3_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct ext3_xattr_ibody_header *header;
struct ext3_inode *raw_inode;
struct ext3_iloc iloc;
@ -411,7 +414,7 @@ ext3_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
error = ext3_xattr_check_names(IFIRST(header), end);
if (error)
goto cleanup;
error = ext3_xattr_list_entries(inode, IFIRST(header),
error = ext3_xattr_list_entries(dentry, IFIRST(header),
buffer, buffer_size);
cleanup:
@ -430,12 +433,12 @@ cleanup:
* used / required on success.
*/
static int
ext3_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
ext3_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
int i_error, b_error;
down_read(&EXT3_I(inode)->xattr_sem);
i_error = ext3_xattr_ibody_list(inode, buffer, buffer_size);
down_read(&EXT3_I(dentry->d_inode)->xattr_sem);
i_error = ext3_xattr_ibody_list(dentry, buffer, buffer_size);
if (i_error < 0) {
b_error = 0;
} else {
@ -443,11 +446,11 @@ ext3_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
buffer += i_error;
buffer_size -= i_error;
}
b_error = ext3_xattr_block_list(inode, buffer, buffer_size);
b_error = ext3_xattr_block_list(dentry, buffer, buffer_size);
if (b_error < 0)
i_error = 0;
}
up_read(&EXT3_I(inode)->xattr_sem);
up_read(&EXT3_I(dentry->d_inode)->xattr_sem);
return i_error + b_error;
}

20
fs/ext3/xattr_security.c
View File

@ -12,8 +12,8 @@
#include "xattr.h"
static size_t
ext3_xattr_security_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext3_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -28,23 +28,23 @@ ext3_xattr_security_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext3_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_SECURITY, name,
buffer, size);
return ext3_xattr_get(dentry->d_inode, EXT3_XATTR_INDEX_SECURITY,
name, buffer, size);
}
static int
ext3_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext3_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_SECURITY, name,
value, size, flags);
return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_SECURITY,
name, value, size, flags);
}
int

18
fs/ext3/xattr_trusted.c
View File

@ -14,8 +14,8 @@
#include "xattr.h"
static size_t
ext3_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext3_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -32,22 +32,22 @@ ext3_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext3_xattr_trusted_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED, name,
buffer, size);
return ext3_xattr_get(dentry->d_inode, EXT3_XATTR_INDEX_TRUSTED,
name, buffer, size);
}
static int
ext3_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext3_xattr_trusted_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_TRUSTED, name,
return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_TRUSTED, name,
value, size, flags);
}

25
fs/ext3/xattr_user.c
View File

@ -13,13 +13,13 @@
#include "xattr.h"
static size_t
ext3_xattr_user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext3_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return 0;
if (list && total_len <= list_size) {
@ -31,26 +31,27 @@ ext3_xattr_user_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext3_xattr_user_get(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_USER, name, buffer, size);
return ext3_xattr_get(dentry->d_inode, EXT3_XATTR_INDEX_USER,
name, buffer, size);
}
static int
ext3_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext3_xattr_user_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_USER, name,
value, size, flags);
return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_USER,
name, value, size, flags);
}
struct xattr_handler ext3_xattr_user_handler = {

74
fs/ext4/acl.c
View File

@ -364,12 +364,12 @@ out:
* Extended attribute handlers
*/
static size_t
ext4_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
ext4_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_len,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_len)
memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
@ -377,12 +377,12 @@ ext4_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
}
static size_t
ext4_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
ext4_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_len,
const char *name, size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
if (!test_opt(inode->i_sb, POSIX_ACL))
if (!test_opt(dentry->d_sb, POSIX_ACL))
return 0;
if (list && size <= list_len)
memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
@ -390,15 +390,18 @@ ext4_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
}
static int
ext4_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
ext4_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(dentry->d_sb, POSIX_ACL))
return -EOPNOTSUPP;
acl = ext4_get_acl(inode, type);
acl = ext4_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -410,31 +413,16 @@ ext4_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
}
static int
ext4_xattr_get_acl_access(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext4_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
ext4_xattr_get_acl_default(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext4_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
ext4_xattr_set_acl(struct inode *inode, int type, const void *value,
size_t size)
ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int type)
{
struct inode *inode = dentry->d_inode;
handle_t *handle;
struct posix_acl *acl;
int error, retries = 0;
if (strcmp(name, "") != 0)
return -EINVAL;
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
if (!is_owner_or_cap(inode))
@ -466,34 +454,18 @@ release_and_out:
return error;
}
static int
ext4_xattr_set_acl_access(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext4_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int
ext4_xattr_set_acl_default(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext4_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
struct xattr_handler ext4_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
.list = ext4_xattr_list_acl_access,
.get = ext4_xattr_get_acl_access,
.set = ext4_xattr_set_acl_access,
.get = ext4_xattr_get_acl,
.set = ext4_xattr_set_acl,
};
struct xattr_handler ext4_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.list = ext4_xattr_list_acl_default,
.get = ext4_xattr_get_acl_default,
.set = ext4_xattr_set_acl_default,
.get = ext4_xattr_get_acl,
.set = ext4_xattr_set_acl,
};

31
fs/ext4/xattr.c
View File

@ -92,7 +92,7 @@ static struct buffer_head *ext4_xattr_cache_find(struct inode *,
struct mb_cache_entry **);
static void ext4_xattr_rehash(struct ext4_xattr_header *,
struct ext4_xattr_entry *);
static int ext4_xattr_list(struct inode *inode, char *buffer,
static int ext4_xattr_list(struct dentry *dentry, char *buffer,
size_t buffer_size);
static struct mb_cache *ext4_xattr_cache;
@ -140,7 +140,7 @@ ext4_xattr_handler(int name_index)
ssize_t
ext4_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
return ext4_xattr_list(dentry->d_inode, buffer, size);
return ext4_xattr_list(dentry, buffer, size);
}
static int
@ -325,7 +325,7 @@ ext4_xattr_get(struct inode *inode, int name_index, const char *name,
}
static int
ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,
ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
char *buffer, size_t buffer_size)
{
size_t rest = buffer_size;
@ -335,9 +335,10 @@ ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,
ext4_xattr_handler(entry->e_name_index);
if (handler) {
size_t size = handler->list(inode, buffer, rest,
size_t size = handler->list(dentry, buffer, rest,
entry->e_name,
entry->e_name_len);
entry->e_name_len,
handler->flags);
if (buffer) {
if (size > rest)
return -ERANGE;
@ -350,8 +351,9 @@ ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,
}
static int
ext4_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct buffer_head *bh = NULL;
int error;
@ -376,7 +378,7 @@ ext4_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
goto cleanup;
}
ext4_xattr_cache_insert(bh);
error = ext4_xattr_list_entries(inode, BFIRST(bh), buffer, buffer_size);
error = ext4_xattr_list_entries(dentry, BFIRST(bh), buffer, buffer_size);
cleanup:
brelse(bh);
@ -385,8 +387,9 @@ cleanup:
}
static int
ext4_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct ext4_xattr_ibody_header *header;
struct ext4_inode *raw_inode;
struct ext4_iloc iloc;
@ -404,7 +407,7 @@ ext4_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
error = ext4_xattr_check_names(IFIRST(header), end);
if (error)
goto cleanup;
error = ext4_xattr_list_entries(inode, IFIRST(header),
error = ext4_xattr_list_entries(dentry, IFIRST(header),
buffer, buffer_size);
cleanup:
@ -423,12 +426,12 @@ cleanup:
* used / required on success.
*/
static int
ext4_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
ext4_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
int i_error, b_error;
down_read(&EXT4_I(inode)->xattr_sem);
i_error = ext4_xattr_ibody_list(inode, buffer, buffer_size);
down_read(&EXT4_I(dentry->d_inode)->xattr_sem);
i_error = ext4_xattr_ibody_list(dentry, buffer, buffer_size);
if (i_error < 0) {
b_error = 0;
} else {
@ -436,11 +439,11 @@ ext4_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
buffer += i_error;
buffer_size -= i_error;
}
b_error = ext4_xattr_block_list(inode, buffer, buffer_size);
b_error = ext4_xattr_block_list(dentry, buffer, buffer_size);
if (b_error < 0)
i_error = 0;
}
up_read(&EXT4_I(inode)->xattr_sem);
up_read(&EXT4_I(dentry->d_inode)->xattr_sem);
return i_error + b_error;
}

20
fs/ext4/xattr_security.c
View File

@ -12,8 +12,8 @@
#include "xattr.h"
static size_t
ext4_xattr_security_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext4_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = sizeof(XATTR_SECURITY_PREFIX)-1;
const size_t total_len = prefix_len + name_len + 1;
@ -28,23 +28,23 @@ ext4_xattr_security_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext4_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext4_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_SECURITY, name,
buffer, size);
return ext4_xattr_get(dentry->d_inode, EXT4_XATTR_INDEX_SECURITY,
name, buffer, size);
}
static int
ext4_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext4_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY, name,
value, size, flags);
return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_SECURITY,
name, value, size, flags);
}
int

20
fs/ext4/xattr_trusted.c
View File

@ -14,8 +14,8 @@
#include "xattr.h"
static size_t
ext4_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext4_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -32,23 +32,23 @@ ext4_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext4_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext4_xattr_trusted_get(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_TRUSTED, name,
buffer, size);
return ext4_xattr_get(dentry->d_inode, EXT4_XATTR_INDEX_TRUSTED,
name, buffer, size);
}
static int
ext4_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext4_xattr_trusted_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED, name,
value, size, flags);
return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_TRUSTED,
name, value, size, flags);
}
struct xattr_handler ext4_xattr_trusted_handler = {

25
fs/ext4/xattr_user.c
View File

@ -13,13 +13,13 @@
#include "xattr.h"
static size_t
ext4_xattr_user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
ext4_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return 0;
if (list && total_len <= list_size) {
@ -31,26 +31,27 @@ ext4_xattr_user_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext4_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
ext4_xattr_user_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_USER, name, buffer, size);
return ext4_xattr_get(dentry->d_inode, EXT4_XATTR_INDEX_USER,
name, buffer, size);
}
static int
ext4_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
ext4_xattr_user_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
if (!test_opt(dentry->d_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER, name,
value, size, flags);
return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_USER,
name, value, size, flags);
}
struct xattr_handler ext4_xattr_user_handler = {

16
fs/gfs2/acl.c
View File

@ -126,7 +126,7 @@ static int gfs2_acl_set(struct inode *inode, int type, struct posix_acl *acl)
error = posix_acl_to_xattr(acl, data, len);
if (error < 0)
goto out;
error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, data, len, 0);
error = __gfs2_xattr_set(inode, name, data, len, 0, GFS2_EATYPE_SYS);
if (!error)
set_cached_acl(inode, type, acl);
out:
@ -232,9 +232,10 @@ static int gfs2_acl_type(const char *name)
return -EINVAL;
}
static int gfs2_xattr_system_get(struct inode *inode, const char *name,
void *buffer, size_t size)
static int gfs2_xattr_system_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int xtype)
{
struct inode *inode = dentry->d_inode;
struct posix_acl *acl;
int type;
int error;
@ -255,9 +256,11 @@ static int gfs2_xattr_system_get(struct inode *inode, const char *name,
return error;
}
static int gfs2_xattr_system_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
static int gfs2_xattr_system_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags,
int xtype)
{
struct inode *inode = dentry->d_inode;
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct posix_acl *acl = NULL;
int error = 0, type;
@ -319,7 +322,7 @@ static int gfs2_xattr_system_set(struct inode *inode, const char *name,
}
set_acl:
error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, 0);
error = __gfs2_xattr_set(inode, name, value, size, 0, GFS2_EATYPE_SYS);
if (!error) {
if (acl)
set_cached_acl(inode, type, acl);
@ -334,6 +337,7 @@ out:
struct xattr_handler gfs2_xattr_system_handler = {
.prefix = XATTR_SYSTEM_PREFIX,
.flags = GFS2_EATYPE_SYS,
.get = gfs2_xattr_system_get,
.set = gfs2_xattr_system_set,
};

3
fs/gfs2/inode.c
View File

@ -801,7 +801,8 @@ static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
return err;
}
err = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SECURITY, name, value, len, 0);
err = __gfs2_xattr_set(&ip->i_inode, name, value, len, 0,
GFS2_EATYPE_SECURITY);
kfree(value);
kfree(name);

69
fs/gfs2/xattr.c
View File

@ -567,18 +567,17 @@ out:
/**
* gfs2_xattr_get - Get a GFS2 extended attribute
* @inode: The inode
* @type: The type of extended attribute
* @name: The name of the extended attribute
* @buffer: The buffer to write the result into
* @size: The size of the buffer
* @type: The type of extended attribute
*
* Returns: actual size of data on success, -errno on error
*/
int gfs2_xattr_get(struct inode *inode, int type, const char *name,
void *buffer, size_t size)
static int gfs2_xattr_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
struct gfs2_ea_location el;
int error;
@ -1119,7 +1118,7 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
/**
* gfs2_xattr_remove - Remove a GFS2 extended attribute
* @inode: The inode
* @ip: The inode
* @type: The type of the extended attribute
* @name: The name of the extended attribute
*
@ -1130,9 +1129,8 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
* Returns: 0, or errno on failure
*/
static int gfs2_xattr_remove(struct inode *inode, int type, const char *name)
static int gfs2_xattr_remove(struct gfs2_inode *ip, int type, const char *name)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_ea_location el;
int error;
@ -1156,24 +1154,24 @@ static int gfs2_xattr_remove(struct inode *inode, int type, const char *name)
}
/**
* gfs2_xattr_set - Set (or remove) a GFS2 extended attribute
* @inode: The inode
* @type: The type of the extended attribute
* __gfs2_xattr_set - Set (or remove) a GFS2 extended attribute
* @ip: The inode
* @name: The name of the extended attribute
* @value: The value of the extended attribute (NULL for remove)
* @size: The size of the @value argument
* @flags: Create or Replace
* @type: The type of the extended attribute
*
* See gfs2_xattr_remove() for details of the removal of xattrs.
*
* Returns: 0 or errno on failure
*/
int gfs2_xattr_set(struct inode *inode, int type, const char *name,
const void *value, size_t size, int flags)
int __gfs2_xattr_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags, int type)
{
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_ea_location el;
unsigned int namel = strlen(name);
int error;
@ -1184,7 +1182,7 @@ int gfs2_xattr_set(struct inode *inode, int type, const char *name,
return -ERANGE;
if (value == NULL)
return gfs2_xattr_remove(inode, type, name);
return gfs2_xattr_remove(ip, type, name);
if (ea_check_size(sdp, namel, size))
return -ERANGE;
@ -1224,6 +1222,13 @@ int gfs2_xattr_set(struct inode *inode, int type, const char *name,
return error;
}
static int gfs2_xattr_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
return __gfs2_xattr_set(dentry->d_inode, name, value,
size, flags, type);
}
static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
struct gfs2_ea_header *ea, char *data)
{
@ -1529,40 +1534,18 @@ out_alloc:
return error;
}
static int gfs2_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
return gfs2_xattr_get(inode, GFS2_EATYPE_USR, name, buffer, size);
}
static int gfs2_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return gfs2_xattr_set(inode, GFS2_EATYPE_USR, name, value, size, flags);
}
static int gfs2_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
return gfs2_xattr_get(inode, GFS2_EATYPE_SECURITY, name, buffer, size);
}
static int gfs2_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return gfs2_xattr_set(inode, GFS2_EATYPE_SECURITY, name, value, size, flags);
}
static struct xattr_handler gfs2_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.get = gfs2_xattr_user_get,
.set = gfs2_xattr_user_set,
.flags = GFS2_EATYPE_USR,
.get = gfs2_xattr_get,
.set = gfs2_xattr_set,
};
static struct xattr_handler gfs2_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.get = gfs2_xattr_security_get,
.set = gfs2_xattr_security_set,
.flags = GFS2_EATYPE_SECURITY,
.get = gfs2_xattr_get,
.set = gfs2_xattr_set,
};
struct xattr_handler *gfs2_xattr_handlers[] = {

7
fs/gfs2/xattr.h
View File

@ -53,10 +53,9 @@ struct gfs2_ea_location {
struct gfs2_ea_header *el_prev;
};
extern int gfs2_xattr_get(struct inode *inode, int type, const char *name,
void *buffer, size_t size);
extern int gfs2_xattr_set(struct inode *inode, int type, const char *name,
const void *value, size_t size, int flags);
extern int __gfs2_xattr_set(struct inode *inode, const char *name,
const void *value, size_t size,
int flags, int type);
extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
extern int gfs2_ea_dealloc(struct gfs2_inode *ip);

65
fs/jffs2/acl.c
View File

@ -350,8 +350,8 @@ int jffs2_acl_chmod(struct inode *inode)
return rc;
}
static size_t jffs2_acl_access_listxattr(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t jffs2_acl_access_listxattr(struct dentry *dentry, char *list,
size_t list_size, const char *name, size_t name_len, int type)
{
const int retlen = sizeof(POSIX_ACL_XATTR_ACCESS);
@ -360,8 +360,8 @@ static size_t jffs2_acl_access_listxattr(struct inode *inode, char *list, size_t
return retlen;
}
static size_t jffs2_acl_default_listxattr(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t jffs2_acl_default_listxattr(struct dentry *dentry, char *list,
size_t list_size, const char *name, size_t name_len, int type)
{
const int retlen = sizeof(POSIX_ACL_XATTR_DEFAULT);
@ -370,12 +370,16 @@ static size_t jffs2_acl_default_listxattr(struct inode *inode, char *list, size_
return retlen;
}
static int jffs2_acl_getxattr(struct inode *inode, int type, void *buffer, size_t size)
static int jffs2_acl_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
struct posix_acl *acl;
int rc;
acl = jffs2_get_acl(inode, type);
if (name[0] != '\0')
return -EINVAL;
acl = jffs2_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (!acl)
@ -386,26 +390,15 @@ static int jffs2_acl_getxattr(struct inode *inode, int type, void *buffer, size_
return rc;
}
static int jffs2_acl_access_getxattr(struct inode *inode, const char *name, void *buffer, size_t size)
{
if (name[0] != '\0')
return -EINVAL;
return jffs2_acl_getxattr(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int jffs2_acl_default_getxattr(struct inode *inode, const char *name, void *buffer, size_t size)
{
if (name[0] != '\0')
return -EINVAL;
return jffs2_acl_getxattr(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value, size_t size)
static int jffs2_acl_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
struct posix_acl *acl;
int rc;
if (!is_owner_or_cap(inode))
if (name[0] != '\0')
return -EINVAL;
if (!is_owner_or_cap(dentry->d_inode))
return -EPERM;
if (value) {
@ -420,38 +413,24 @@ static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value,
} else {
acl = NULL;
}
rc = jffs2_set_acl(inode, type, acl);
rc = jffs2_set_acl(dentry->d_inode, type, acl);
out:
posix_acl_release(acl);
return rc;
}
static int jffs2_acl_access_setxattr(struct inode *inode, const char *name,
const void *buffer, size_t size, int flags)
{
if (name[0] != '\0')
return -EINVAL;
return jffs2_acl_setxattr(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int jffs2_acl_default_setxattr(struct inode *inode, const char *name,
const void *buffer, size_t size, int flags)
{
if (name[0] != '\0')
return -EINVAL;
return jffs2_acl_setxattr(inode, ACL_TYPE_DEFAULT, buffer, size);
}
struct xattr_handler jffs2_acl_access_xattr_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_DEFAULT,
.list = jffs2_acl_access_listxattr,
.get = jffs2_acl_access_getxattr,
.set = jffs2_acl_access_setxattr,
.get = jffs2_acl_getxattr,
.set = jffs2_acl_setxattr,
};
struct xattr_handler jffs2_acl_default_xattr_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.list = jffs2_acl_default_listxattr,
.get = jffs2_acl_default_getxattr,
.set = jffs2_acl_default_setxattr,
.get = jffs2_acl_getxattr,
.set = jffs2_acl_setxattr,
};

18
fs/jffs2/security.c
View File

@ -44,26 +44,28 @@ int jffs2_init_security(struct inode *inode, struct inode *dir)
}
/* ---- XATTR Handler for "security.*" ----------------- */
static int jffs2_security_getxattr(struct inode *inode, const char *name,
void *buffer, size_t size)
static int jffs2_security_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_getxattr(inode, JFFS2_XPREFIX_SECURITY, name, buffer, size);
return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY,
name, buffer, size);
}
static int jffs2_security_setxattr(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
static int jffs2_security_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, buffer, size, flags);
return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY,
name, buffer, size, flags);
}
static size_t jffs2_security_listxattr(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t jffs2_security_listxattr(struct dentry *dentry, char *list,
size_t list_size, const char *name, size_t name_len, int type)
{
size_t retlen = XATTR_SECURITY_PREFIX_LEN + name_len + 1;

6
fs/jffs2/xattr.c
View File

@ -990,9 +990,11 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
if (!xhandle)
continue;
if (buffer) {
rc = xhandle->list(inode, buffer+len, size-len, xd->xname, xd->name_len);
rc = xhandle->list(dentry, buffer+len, size-len,
xd->xname, xd->name_len, xd->flags);
} else {
rc = xhandle->list(inode, NULL, 0, xd->xname, xd->name_len);
rc = xhandle->list(dentry, NULL, 0, xd->xname,
xd->name_len, xd->flags);
}
if (rc < 0)
goto out;

18
fs/jffs2/xattr_trusted.c
View File

@ -16,24 +16,26 @@
#include <linux/mtd/mtd.h>
#include "nodelist.h"
static int jffs2_trusted_getxattr(struct inode *inode, const char *name,
void *buffer, size_t size)
static int jffs2_trusted_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size);
return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED,
name, buffer, size);
}
static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
static int jffs2_trusted_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags);
return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED,
name, buffer, size, flags);
}
static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t jffs2_trusted_listxattr(struct dentry *dentry, char *list,
size_t list_size, const char *name, size_t name_len, int type)
{
size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;

18
fs/jffs2/xattr_user.c
View File

@ -16,24 +16,26 @@
#include <linux/mtd/mtd.h>
#include "nodelist.h"
static int jffs2_user_getxattr(struct inode *inode, const char *name,
void *buffer, size_t size)
static int jffs2_user_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_getxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size);
return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
name, buffer, size);
}
static int jffs2_user_setxattr(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
static int jffs2_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
if (!strcmp(name, ""))
return -EINVAL;
return do_jffs2_setxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size, flags);
return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
name, buffer, size, flags);
}
static size_t jffs2_user_listxattr(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t jffs2_user_listxattr(struct dentry *dentry, char *list,
size_t list_size, const char *name, size_t name_len, int type)
{
size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;

87
fs/ocfs2/acl.c
View File

@ -331,13 +331,14 @@ cleanup:
return ret;
}
static size_t ocfs2_xattr_list_acl_access(struct inode *inode,
static size_t ocfs2_xattr_list_acl_access(struct dentry *dentry,
char *list,
size_t list_len,
const char *name,
size_t name_len)
size_t name_len,
int type)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
@ -348,13 +349,14 @@ static size_t ocfs2_xattr_list_acl_access(struct inode *inode,
return size;
}
static size_t ocfs2_xattr_list_acl_default(struct inode *inode,
static size_t ocfs2_xattr_list_acl_default(struct dentry *dentry,
char *list,
size_t list_len,
const char *name,
size_t name_len)
size_t name_len,
int type)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
@ -365,19 +367,19 @@ static size_t ocfs2_xattr_list_acl_default(struct inode *inode,
return size;
}
static int ocfs2_xattr_get_acl(struct inode *inode,
int type,
void *buffer,
size_t size)
static int ocfs2_xattr_get_acl(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
struct posix_acl *acl;
int ret;
if (strcmp(name, "") != 0)
return -EINVAL;
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
return -EOPNOTSUPP;
acl = ocfs2_get_acl(inode, type);
acl = ocfs2_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -388,35 +390,16 @@ static int ocfs2_xattr_get_acl(struct inode *inode,
return ret;
}
static int ocfs2_xattr_get_acl_access(struct inode *inode,
const char *name,
void *buffer,
size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ocfs2_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int ocfs2_xattr_get_acl_default(struct inode *inode,
const char *name,
void *buffer,
size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ocfs2_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int ocfs2_xattr_set_acl(struct inode *inode,
int type,
const void *value,
size_t size)
static int ocfs2_xattr_set_acl(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
struct inode *inode = dentry->d_inode;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct posix_acl *acl;
int ret = 0;
if (strcmp(name, "") != 0)
return -EINVAL;
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
return -EOPNOTSUPP;
@ -442,38 +425,18 @@ cleanup:
return ret;
}
static int ocfs2_xattr_set_acl_access(struct inode *inode,
const char *name,
const void *value,
size_t size,
int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ocfs2_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int ocfs2_xattr_set_acl_default(struct inode *inode,
const char *name,
const void *value,
size_t size,
int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ocfs2_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
struct xattr_handler ocfs2_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
.list = ocfs2_xattr_list_acl_access,
.get = ocfs2_xattr_get_acl_access,
.set = ocfs2_xattr_set_acl_access,
.get = ocfs2_xattr_get_acl,
.set = ocfs2_xattr_set_acl,
};
struct xattr_handler ocfs2_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.list = ocfs2_xattr_list_acl_default,
.get = ocfs2_xattr_get_acl_default,
.set = ocfs2_xattr_set_acl_default,
.get = ocfs2_xattr_get_acl,
.set = ocfs2_xattr_set_acl,
};

72
fs/ocfs2/xattr.c
View File

@ -205,8 +205,6 @@ static int ocfs2_get_xattr_tree_value_root(struct super_block *sb,
int offset,
struct ocfs2_xattr_value_root **xv,
struct buffer_head **bh);
static int ocfs2_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags);
static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb)
{
@ -6978,9 +6976,9 @@ int ocfs2_init_security_and_acl(struct inode *dir,
ret = ocfs2_init_security_get(inode, dir, &si);
if (!ret) {
ret = ocfs2_xattr_security_set(inode, si.name,
si.value, si.value_len,
XATTR_CREATE);
ret = ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY,
si.name, si.value, si.value_len,
XATTR_CREATE);
if (ret) {
mlog_errno(ret);
goto leave;
@ -7008,9 +7006,9 @@ leave:
/*
* 'security' attributes support
*/
static size_t ocfs2_xattr_security_list(struct inode *inode, char *list,
static size_t ocfs2_xattr_security_list(struct dentry *dentry, char *list,
size_t list_size, const char *name,
size_t name_len)
size_t name_len, int type)
{
const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -7023,23 +7021,23 @@ static size_t ocfs2_xattr_security_list(struct inode *inode, char *list,
return total_len;
}
static int ocfs2_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
static int ocfs2_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_SECURITY, name,
buffer, size);
return ocfs2_xattr_get(dentry->d_inode, OCFS2_XATTR_INDEX_SECURITY,
name, buffer, size);
}
static int ocfs2_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
static int ocfs2_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY, name, value,
size, flags);
return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_SECURITY,
name, value, size, flags);
}
int ocfs2_init_security_get(struct inode *inode,
@ -7076,9 +7074,9 @@ struct xattr_handler ocfs2_xattr_security_handler = {
/*
* 'trusted' attributes support
*/
static size_t ocfs2_xattr_trusted_list(struct inode *inode, char *list,
static size_t ocfs2_xattr_trusted_list(struct dentry *dentry, char *list,
size_t list_size, const char *name,
size_t name_len)
size_t name_len, int type)
{
const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
@ -7091,23 +7089,23 @@ static size_t ocfs2_xattr_trusted_list(struct inode *inode, char *list,
return total_len;
}
static int ocfs2_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
static int ocfs2_xattr_trusted_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_TRUSTED, name,
buffer, size);
return ocfs2_xattr_get(dentry->d_inode, OCFS2_XATTR_INDEX_TRUSTED,
name, buffer, size);
}
static int ocfs2_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
static int ocfs2_xattr_trusted_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_TRUSTED, name, value,
size, flags);
return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_TRUSTED,
name, value, size, flags);
}
struct xattr_handler ocfs2_xattr_trusted_handler = {
@ -7120,13 +7118,13 @@ struct xattr_handler ocfs2_xattr_trusted_handler = {
/*
* 'user' attributes support
*/
static size_t ocfs2_xattr_user_list(struct inode *inode, char *list,
static size_t ocfs2_xattr_user_list(struct dentry *dentry, char *list,
size_t list_size, const char *name,
size_t name_len)
size_t name_len, int type)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
if (osb->s_mount_opt & OCFS2_MOUNT_NOUSERXATTR)
return 0;
@ -7139,31 +7137,31 @@ static size_t ocfs2_xattr_user_list(struct inode *inode, char *list,
return total_len;
}
static int ocfs2_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
static int ocfs2_xattr_user_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
if (strcmp(name, "") == 0)
return -EINVAL;
if (osb->s_mount_opt & OCFS2_MOUNT_NOUSERXATTR)
return -EOPNOTSUPP;
return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_USER, name,
return ocfs2_xattr_get(dentry->d_inode, OCFS2_XATTR_INDEX_USER, name,
buffer, size);
}
static int ocfs2_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
static int ocfs2_xattr_user_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
if (strcmp(name, "") == 0)
return -EINVAL;
if (osb->s_mount_opt & OCFS2_MOUNT_NOUSERXATTR)
return -EOPNOTSUPP;
return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_USER, name, value,
size, flags);
return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_USER,
name, value, size, flags);
}
struct xattr_handler ocfs2_xattr_user_handler = {

36
fs/reiserfs/xattr.c
View File

@ -48,6 +48,7 @@
#include <net/checksum.h>
#include <linux/stat.h>
#include <linux/quotaops.h>
#include <linux/security.h>
#define PRIVROOT_NAME ".reiserfs_priv"
#define XAROOT_NAME "xattrs"
@ -726,15 +727,14 @@ ssize_t
reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
size_t size)
{
struct inode *inode = dentry->d_inode;
struct xattr_handler *handler;
handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
return -EOPNOTSUPP;
return handler->get(inode, name, buffer, size);
return handler->get(dentry, name, buffer, size, handler->flags);
}
/*
@ -746,15 +746,14 @@ int
reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags)
{
struct inode *inode = dentry->d_inode;
struct xattr_handler *handler;
handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
return -EOPNOTSUPP;
return handler->set(inode, name, value, size, flags);
return handler->set(dentry, name, value, size, flags, handler->flags);
}
/*
@ -764,21 +763,20 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
*/
int reiserfs_removexattr(struct dentry *dentry, const char *name)
{
struct inode *inode = dentry->d_inode;
struct xattr_handler *handler;
handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
return -EOPNOTSUPP;
return handler->set(inode, name, NULL, 0, XATTR_REPLACE);
return handler->set(dentry, name, NULL, 0, XATTR_REPLACE, handler->flags);
}
struct listxattr_buf {
size_t size;
size_t pos;
char *buf;
struct inode *inode;
struct dentry *dentry;
};
static int listxattr_filler(void *buf, const char *name, int namelen,
@ -789,17 +787,19 @@ static int listxattr_filler(void *buf, const char *name, int namelen,
if (name[0] != '.' ||
(namelen != 1 && (name[1] != '.' || namelen != 2))) {
struct xattr_handler *handler;
handler = find_xattr_handler_prefix(b->inode->i_sb->s_xattr,
handler = find_xattr_handler_prefix(b->dentry->d_sb->s_xattr,
name);
if (!handler) /* Unsupported xattr name */
return 0;
if (b->buf) {
size = handler->list(b->inode, b->buf + b->pos,
b->size, name, namelen);
size = handler->list(b->dentry, b->buf + b->pos,
b->size, name, namelen,
handler->flags);
if (size > b->size)
return -ERANGE;
} else {
size = handler->list(b->inode, NULL, 0, name, namelen);
size = handler->list(b->dentry, NULL, 0, name,
namelen, handler->flags);
}
b->pos += size;
@ -820,7 +820,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
int err = 0;
loff_t pos = 0;
struct listxattr_buf buf = {
.inode = dentry->d_inode,
.dentry = dentry,
.buf = buffer,
.size = buffer ? size : 0,
};

69
fs/reiserfs/xattr_acl.c
View File

@ -15,8 +15,10 @@ static int reiserfs_set_acl(struct reiserfs_transaction_handle *th,
struct posix_acl *acl);
static int
xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
posix_acl_set(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int type)
{
struct inode *inode = dentry->d_inode;
struct posix_acl *acl;
int error, error2;
struct reiserfs_transaction_handle th;
@ -60,15 +62,16 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
}
static int
xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
posix_acl_get(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
struct posix_acl *acl;
int error;
if (!reiserfs_posixacl(inode->i_sb))
if (!reiserfs_posixacl(dentry->d_sb))
return -EOPNOTSUPP;
acl = reiserfs_get_acl(inode, type);
acl = reiserfs_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -482,30 +485,12 @@ int reiserfs_acl_chmod(struct inode *inode)
return error;
}
static int
posix_acl_access_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
return -EINVAL;
return xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
posix_acl_access_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
return -EINVAL;
return xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static size_t posix_acl_access_list(struct inode *inode, char *list,
static size_t posix_acl_access_list(struct dentry *dentry, char *list,
size_t list_size, const char *name,
size_t name_len)
size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
if (!reiserfs_posixacl(inode->i_sb))
if (!reiserfs_posixacl(dentry->d_sb))
return 0;
if (list && size <= list_size)
memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
@ -514,35 +499,18 @@ static size_t posix_acl_access_list(struct inode *inode, char *list,
struct xattr_handler reiserfs_posix_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.get = posix_acl_access_get,
.set = posix_acl_access_set,
.flags = ACL_TYPE_ACCESS,
.get = posix_acl_get,
.set = posix_acl_set,
.list = posix_acl_access_list,
};
static int
posix_acl_default_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
return -EINVAL;
return xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
posix_acl_default_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
return -EINVAL;
return xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
static size_t posix_acl_default_list(struct inode *inode, char *list,
static size_t posix_acl_default_list(struct dentry *dentry, char *list,
size_t list_size, const char *name,
size_t name_len)
size_t name_len, int type)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
if (!reiserfs_posixacl(inode->i_sb))
if (!reiserfs_posixacl(dentry->d_sb))
return 0;
if (list && size <= list_size)
memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
@ -551,7 +519,8 @@ static size_t posix_acl_default_list(struct inode *inode, char *list,
struct xattr_handler reiserfs_posix_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.get = posix_acl_default_get,
.set = posix_acl_default_set,
.flags = ACL_TYPE_DEFAULT,
.get = posix_acl_get,
.set = posix_acl_set,
.list = posix_acl_default_list,
};

21
fs/reiserfs/xattr_security.c
View File

@ -8,36 +8,37 @@
#include <asm/uaccess.h>
static int
security_get(struct inode *inode, const char *name, void *buffer, size_t size)
security_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
int handler_flags)
{
if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
return -EINVAL;
if (IS_PRIVATE(inode))
if (IS_PRIVATE(dentry->d_inode))
return -EPERM;
return reiserfs_xattr_get(inode, name, buffer, size);
return reiserfs_xattr_get(dentry->d_inode, name, buffer, size);
}
static int
security_set(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
security_set(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags)
{
if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
return -EINVAL;
if (IS_PRIVATE(inode))
if (IS_PRIVATE(dentry->d_inode))
return -EPERM;
return reiserfs_xattr_set(inode, name, buffer, size, flags);
return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags);
}
static size_t security_list(struct inode *inode, char *list, size_t list_len,
const char *name, size_t namelen)
static size_t security_list(struct dentry *dentry, char *list, size_t list_len,
const char *name, size_t namelen, int handler_flags)
{
const size_t len = namelen + 1;
if (IS_PRIVATE(inode))
if (IS_PRIVATE(dentry->d_inode))
return 0;
if (list && len <= list_len) {

21
fs/reiserfs/xattr_trusted.c
View File

@ -8,36 +8,37 @@
#include <asm/uaccess.h>
static int
trusted_get(struct inode *inode, const char *name, void *buffer, size_t size)
trusted_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
int handler_flags)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(dentry->d_inode))
return -EPERM;
return reiserfs_xattr_get(inode, name, buffer, size);
return reiserfs_xattr_get(dentry->d_inode, name, buffer, size);
}
static int
trusted_set(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
trusted_set(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(dentry->d_inode))
return -EPERM;
return reiserfs_xattr_set(inode, name, buffer, size, flags);
return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags);
}
static size_t trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t trusted_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int handler_flags)
{
const size_t len = name_len + 1;
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(dentry->d_inode))
return 0;
if (list && len <= list_size) {

21
fs/reiserfs/xattr_user.c
View File

@ -7,34 +7,35 @@
#include <asm/uaccess.h>
static int
user_get(struct inode *inode, const char *name, void *buffer, size_t size)
user_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
int handler_flags)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
return -EINVAL;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return -EOPNOTSUPP;
return reiserfs_xattr_get(inode, name, buffer, size);
return reiserfs_xattr_get(dentry->d_inode, name, buffer, size);
}
static int
user_set(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
user_set(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
return -EINVAL;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return -EOPNOTSUPP;
return reiserfs_xattr_set(inode, name, buffer, size, flags);
return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags);
}
static size_t user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t user_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int handler_flags)
{
const size_t len = name_len + 1;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return 0;
if (list && len <= list_size) {
memcpy(list, name, name_len);

28
fs/xattr.c
View File

@ -615,12 +615,11 @@ ssize_t
generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size)
{
struct xattr_handler *handler;
struct inode *inode = dentry->d_inode;
handler = xattr_resolve_name(inode->i_sb->s_xattr, &name);
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
return handler->get(inode, name, buffer, size);
return handler->get(dentry, name, buffer, size, handler->flags);
}
/*
@ -630,18 +629,20 @@ generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t s
ssize_t
generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = dentry->d_inode;
struct xattr_handler *handler, **handlers = inode->i_sb->s_xattr;
struct xattr_handler *handler, **handlers = dentry->d_sb->s_xattr;
unsigned int size = 0;
if (!buffer) {
for_each_xattr_handler(handlers, handler)
size += handler->list(inode, NULL, 0, NULL, 0);
for_each_xattr_handler(handlers, handler) {
size += handler->list(dentry, NULL, 0, NULL, 0,
handler->flags);
}
} else {
char *buf = buffer;
for_each_xattr_handler(handlers, handler) {
size = handler->list(inode, buf, buffer_size, NULL, 0);
size = handler->list(dentry, buf, buffer_size,
NULL, 0, handler->flags);
if (size > buffer_size)
return -ERANGE;
buf += size;
@ -659,14 +660,13 @@ int
generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
{
struct xattr_handler *handler;
struct inode *inode = dentry->d_inode;
if (size == 0)
value = ""; /* empty EA, do not remove */
handler = xattr_resolve_name(inode->i_sb->s_xattr, &name);
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
return handler->set(inode, name, value, size, flags);
return handler->set(dentry, name, value, size, 0, handler->flags);
}
/*
@ -677,12 +677,12 @@ int
generic_removexattr(struct dentry *dentry, const char *name)
{
struct xattr_handler *handler;
struct inode *inode = dentry->d_inode;
handler = xattr_resolve_name(inode->i_sb->s_xattr, &name);
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
return handler->set(inode, name, NULL, 0, XATTR_REPLACE);
return handler->set(dentry, name, NULL, 0,
XATTR_REPLACE, handler->flags);
}
EXPORT_SYMBOL(generic_getxattr);

57
fs/xfs/linux-2.6/xfs_acl.c
View File

@ -354,37 +354,14 @@ xfs_acl_chmod(struct inode *inode)
return error;
}
/*
* System xattr handlers.
*
* Currently Posix ACLs are the only system namespace extended attribute
* handlers supported by XFS, so we just implement the handlers here.
* If we ever support other system extended attributes this will need
* some refactoring.
*/
static int
xfs_decode_acl(const char *name)
{
if (strcmp(name, "posix_acl_access") == 0)
return ACL_TYPE_ACCESS;
else if (strcmp(name, "posix_acl_default") == 0)
return ACL_TYPE_DEFAULT;
return -EINVAL;
}
static int
xfs_xattr_system_get(struct inode *inode, const char *name,
void *value, size_t size)
xfs_xattr_acl_get(struct dentry *dentry, const char *name,
void *value, size_t size, int type)
{
struct posix_acl *acl;
int type, error;
int error;
type = xfs_decode_acl(name);
if (type < 0)
return type;
acl = xfs_get_acl(inode, type);
acl = xfs_get_acl(dentry->d_inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -397,15 +374,13 @@ xfs_xattr_system_get(struct inode *inode, const char *name,
}
static int
xfs_xattr_system_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
xfs_xattr_acl_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
{
struct inode *inode = dentry->d_inode;
struct posix_acl *acl = NULL;
int error = 0, type;
int error = 0;
type = xfs_decode_acl(name);
if (type < 0)
return type;
if (flags & XATTR_CREATE)
return -EINVAL;
if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
@ -462,8 +437,16 @@ xfs_xattr_system_set(struct inode *inode, const char *name,
return error;
}
struct xattr_handler xfs_xattr_system_handler = {
.prefix = XATTR_SYSTEM_PREFIX,
.get = xfs_xattr_system_get,
.set = xfs_xattr_system_set,
struct xattr_handler xfs_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
.get = xfs_xattr_acl_get,
.set = xfs_xattr_acl_set,
};
struct xattr_handler xfs_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.get = xfs_xattr_acl_get,
.set = xfs_xattr_acl_set,
};

71
fs/xfs/linux-2.6/xfs_xattr.c
View File

@ -30,10 +30,10 @@
static int
__xfs_xattr_get(struct inode *inode, const char *name,
xfs_xattr_get(struct dentry *dentry, const char *name,
void *value, size_t size, int xflags)
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_inode *ip = XFS_I(dentry->d_inode);
int error, asize = size;
if (strcmp(name, "") == 0)
@ -52,10 +52,10 @@ __xfs_xattr_get(struct inode *inode, const char *name,
}
static int
__xfs_xattr_set(struct inode *inode, const char *name, const void *value,
xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int xflags)
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_inode *ip = XFS_I(dentry->d_inode);
if (strcmp(name, "") == 0)
return -EINVAL;
@ -71,75 +71,34 @@ __xfs_xattr_set(struct inode *inode, const char *name, const void *value,
return -xfs_attr_set(ip, name, (void *)value, size, xflags);
}
static int
xfs_xattr_user_get(struct inode *inode, const char *name,
void *value, size_t size)
{
return __xfs_xattr_get(inode, name, value, size, 0);
}
static int
xfs_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return __xfs_xattr_set(inode, name, value, size, flags, 0);
}
static struct xattr_handler xfs_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.get = xfs_xattr_user_get,
.set = xfs_xattr_user_set,
.flags = 0, /* no flags implies user namespace */
.get = xfs_xattr_get,
.set = xfs_xattr_set,
};
static int
xfs_xattr_trusted_get(struct inode *inode, const char *name,
void *value, size_t size)
{
return __xfs_xattr_get(inode, name, value, size, ATTR_ROOT);
}
static int
xfs_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return __xfs_xattr_set(inode, name, value, size, flags, ATTR_ROOT);
}
static struct xattr_handler xfs_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.get = xfs_xattr_trusted_get,
.set = xfs_xattr_trusted_set,
.flags = ATTR_ROOT,
.get = xfs_xattr_get,
.set = xfs_xattr_set,
};
static int
xfs_xattr_secure_get(struct inode *inode, const char *name,
void *value, size_t size)
{
return __xfs_xattr_get(inode, name, value, size, ATTR_SECURE);
}
static int
xfs_xattr_secure_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
return __xfs_xattr_set(inode, name, value, size, flags, ATTR_SECURE);
}
static struct xattr_handler xfs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.get = xfs_xattr_secure_get,
.set = xfs_xattr_secure_set,
.flags = ATTR_SECURE,
.get = xfs_xattr_get,
.set = xfs_xattr_set,
};
struct xattr_handler *xfs_xattr_handlers[] = {
&xfs_xattr_user_handler,
&xfs_xattr_trusted_handler,
&xfs_xattr_security_handler,
#ifdef CONFIG_XFS_POSIX_ACL
&xfs_xattr_system_handler,
&xfs_xattr_acl_access_handler,
&xfs_xattr_acl_default_handler,
#endif
NULL
};

3
fs/xfs/xfs_acl.h
View File

@ -49,7 +49,8 @@ extern int xfs_acl_chmod(struct inode *inode);
extern int posix_acl_access_exists(struct inode *inode);
extern int posix_acl_default_exists(struct inode *inode);
extern struct xattr_handler xfs_xattr_system_handler;
extern struct xattr_handler xfs_xattr_acl_access_handler;
extern struct xattr_handler xfs_xattr_acl_default_handler;
#else
# define xfs_check_acl NULL
# define xfs_get_acl(inode, type) NULL

13
include/linux/xattr.h
View File

@ -38,12 +38,13 @@ struct dentry;
struct xattr_handler {
char *prefix;
size_t (*list)(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len);
int (*get)(struct inode *inode, const char *name, void *buffer,
size_t size);
int (*set)(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags);
int flags; /* fs private flags passed back to the handlers */
size_t (*list)(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int handler_flags);
int (*get)(struct dentry *dentry, const char *name, void *buffer,
size_t size, int handler_flags);
int (*set)(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags);
};
ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);

19
mm/shmem.c
View File

@ -2042,27 +2042,28 @@ static const struct inode_operations shmem_symlink_inode_operations = {
* filesystem level, though.
*/
static size_t shmem_xattr_security_list(struct inode *inode, char *list,
static size_t shmem_xattr_security_list(struct dentry *dentry, char *list,
size_t list_len, const char *name,
size_t name_len)
size_t name_len, int handler_flags)
{
return security_inode_listsecurity(inode, list, list_len);
return security_inode_listsecurity(dentry->d_inode, list, list_len);
}
static int shmem_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
static int shmem_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int handler_flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return xattr_getsecurity(inode, name, buffer, size);
return xattr_getsecurity(dentry->d_inode, name, buffer, size);
}
static int shmem_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
static int shmem_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int handler_flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return security_inode_setsecurity(inode, name, value, size, flags);
return security_inode_setsecurity(dentry->d_inode, name, value,
size, flags);
}
static struct xattr_handler shmem_xattr_security_handler = {

78
mm/shmem_acl.c
View File

@ -63,86 +63,48 @@ struct generic_acl_operations shmem_acl_ops = {
.setacl = shmem_set_acl,
};
/**
* shmem_list_acl_access, shmem_get_acl_access, shmem_set_acl_access,
* shmem_xattr_acl_access_handler - plumbing code to implement the
* system.posix_acl_access xattr using the generic acl functions.
*/
static size_t
shmem_list_acl_access(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
shmem_xattr_list_acl(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int type)
{
return generic_acl_list(inode, &shmem_acl_ops, ACL_TYPE_ACCESS,
list, list_size);
return generic_acl_list(dentry->d_inode, &shmem_acl_ops,
type, list, list_size);
}
static int
shmem_get_acl_access(struct inode *inode, const char *name, void *buffer,
size_t size)
shmem_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
size_t size, int type)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return generic_acl_get(inode, &shmem_acl_ops, ACL_TYPE_ACCESS, buffer,
size);
return generic_acl_get(dentry->d_inode, &shmem_acl_ops, type,
buffer, size);
}
static int
shmem_set_acl_access(struct inode *inode, const char *name, const void *value,
size_t size, int flags)
shmem_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int type)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return generic_acl_set(inode, &shmem_acl_ops, ACL_TYPE_ACCESS, value,
size);
return generic_acl_set(dentry->d_inode, &shmem_acl_ops, type,
value, size);
}
struct xattr_handler shmem_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.list = shmem_list_acl_access,
.get = shmem_get_acl_access,
.set = shmem_set_acl_access,
.flags = ACL_TYPE_ACCESS,
.list = shmem_xattr_list_acl,
.get = shmem_xattr_get_acl,
.set = shmem_xattr_set_acl,
};
/**
* shmem_list_acl_default, shmem_get_acl_default, shmem_set_acl_default,
* shmem_xattr_acl_default_handler - plumbing code to implement the
* system.posix_acl_default xattr using the generic acl functions.
*/
static size_t
shmem_list_acl_default(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
return generic_acl_list(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT,
list, list_size);
}
static int
shmem_get_acl_default(struct inode *inode, const char *name, void *buffer,
size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return generic_acl_get(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT, buffer,
size);
}
static int
shmem_set_acl_default(struct inode *inode, const char *name, const void *value,
size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return generic_acl_set(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT, value,
size);
}
struct xattr_handler shmem_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.list = shmem_list_acl_default,
.get = shmem_get_acl_default,
.set = shmem_set_acl_default,
.flags = ACL_TYPE_DEFAULT,
.list = shmem_xattr_list_acl,
.get = shmem_xattr_get_acl,
.set = shmem_xattr_set_acl,
};
/**