64 строки
1.6 KiB
C
64 строки
1.6 KiB
C
|
/*
|
||
|
|
* linux/fs/hfsplus/xattr_user.c
|
||
|
|
*
|
||
|
|
* Vyacheslav Dubeyko <slava@dubeyko.com>
|
||
|
|
*
|
||
|
|
* Handler for user extended attributes.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "hfsplus_fs.h"
|
||
|
|
#include "xattr.h"
|
||
|
|
|
||
|
|
static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
|
||
|
|
void *buffer, size_t size, int type)
|
||
|
|
{
|
||
|
|
char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
|
||
|
|
size_t len = strlen(name);
|
||
|
|
|
||
|
|
if (!strcmp(name, ""))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
|
||
|
|
strcpy(xattr_name, XATTR_USER_PREFIX);
|
||
|
|
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
|
||
|
|
|
||
|
|
return hfsplus_getxattr(dentry, xattr_name, buffer, size);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
|
||
|
|
const void *buffer, size_t size, int flags, int type)
|
||
|
|
{
|
||
|
|
char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
|
||
|
|
size_t len = strlen(name);
|
||
|
|
|
||
|
|
if (!strcmp(name, ""))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
|
||
|
|
strcpy(xattr_name, XATTR_USER_PREFIX);
|
||
|
|
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
|
||
|
|
|
||
|
|
return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,
|
||
|
|
size_t list_size, const char *name, size_t name_len, int type)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* This method is not used.
|
||
|
|
* It is used hfsplus_listxattr() instead of generic_listxattr().
|
||
|
|
*/
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct xattr_handler hfsplus_xattr_user_handler = {
|
||
|
|
.prefix = XATTR_USER_PREFIX,
|
||
|
|
.list = hfsplus_user_listxattr,
|
||
|
|
.get = hfsplus_user_getxattr,
|
||
|
|
.set = hfsplus_user_setxattr,
|
||
|
|
};
|