mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Paul Gortmaker](/assets/img/avatar_default.png)
Delete any instances of include module.h that were not strictly required. In the case of ext2, the declaration of MODULE_LICENSE etc. were in inode.c but the module_init/exit were in super.c, so relocate the MODULE_LICENCE/AUTHOR block to super.c which makes it consistent with ext3 and ext4 at the same time. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jan Kara <jack@suse.cz>
77 lines
2 KiB
C
77 lines
2 KiB
C
/*
|
|
* linux/fs/ext2/xattr_security.c
|
|
* Handler for storing security labels as extended attributes.
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/ext2_fs.h>
|
|
#include <linux/security.h>
|
|
#include "xattr.h"
|
|
|
|
static size_t
|
|
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;
|
|
|
|
if (list && total_len <= list_size) {
|
|
memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
|
|
memcpy(list+prefix_len, name, name_len);
|
|
list[prefix_len + name_len] = '\0';
|
|
}
|
|
return total_len;
|
|
}
|
|
|
|
static int
|
|
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(dentry->d_inode, EXT2_XATTR_INDEX_SECURITY, name,
|
|
buffer, size);
|
|
}
|
|
|
|
static int
|
|
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(dentry->d_inode, EXT2_XATTR_INDEX_SECURITY, name,
|
|
value, size, flags);
|
|
}
|
|
|
|
int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array,
|
|
void *fs_info)
|
|
{
|
|
const struct xattr *xattr;
|
|
int err = 0;
|
|
|
|
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
|
|
err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY,
|
|
xattr->name, xattr->value,
|
|
xattr->value_len, 0);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int
|
|
ext2_init_security(struct inode *inode, struct inode *dir,
|
|
const struct qstr *qstr)
|
|
{
|
|
return security_inode_init_security(inode, dir, qstr,
|
|
&ext2_initxattrs, NULL);
|
|
}
|
|
|
|
const struct xattr_handler ext2_xattr_security_handler = {
|
|
.prefix = XATTR_SECURITY_PREFIX,
|
|
.list = ext2_xattr_security_list,
|
|
.get = ext2_xattr_security_get,
|
|
.set = ext2_xattr_security_set,
|
|
};
|