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fs/hfsplus: move xattr_name allocation in hfsplus_setxattr() 

security/trusted/user/osx setxattr did the same
xattr_name initialization. Move that operation in hfsplus_setxattr().

Tested with security/trusted/user getfattr/setfattr

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Fabian Frederick 2015-04-16 12:47:01 -07:00 committed by Linus Torvalds
parent a3cef4cd68
commit 5e61473ea9
5 changed files with 35 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
fs/hfsplus/xattr.c
View File

@ -424,6 +424,28 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
return len;
}
int hfsplus_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags,
const char *prefix, size_t prefixlen)
{
char *xattr_name;
int res;
if (!strcmp(name, ""))
return -EINVAL;
xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
GFP_KERNEL);
if (!xattr_name)
return -ENOMEM;
strcpy(xattr_name, prefix);
strcpy(xattr_name + prefixlen, name);
res = __hfsplus_setxattr(dentry->d_inode, xattr_name, value, size,
flags);
kfree(xattr_name);
return res;
}
static ssize_t hfsplus_getxattr_finder_info(struct inode *inode,
void *value, size_t size)
{
@ -847,9 +869,6 @@ static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
char *xattr_name;
int res;
if (!strcmp(name, ""))
return -EINVAL;
@ -859,16 +878,10 @@ static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
+ XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
if (!xattr_name)
return -ENOMEM;
strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
kfree(xattr_name);
return res;
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_MAC_OSX_PREFIX,
XATTR_MAC_OSX_PREFIX_LEN);
}
static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,

8
fs/hfsplus/xattr.h
View File

@ -21,11 +21,9 @@ extern const struct xattr_handler *hfsplus_xattr_handlers[];
int __hfsplus_setxattr(struct inode *inode, const char *name,
const void *value, size_t size, int flags);
static inline int hfsplus_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
return __hfsplus_setxattr(dentry->d_inode, name, value, size, flags);
}
int hfsplus_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags,
const char *prefix, size_t prefixlen);
ssize_t __hfsplus_getxattr(struct inode *inode, const char *name,
void *value, size_t size);

19
fs/hfsplus/xattr_security.c
View File

@ -24,22 +24,9 @@ static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
char *xattr_name;
int res;
if (!strcmp(name, ""))
return -EINVAL;
xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
GFP_KERNEL);
if (!xattr_name)
return -ENOMEM;
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
kfree(xattr_name);
return res;
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_SECURITY_PREFIX,
XATTR_SECURITY_PREFIX_LEN);
}
static size_t hfsplus_security_listxattr(struct dentry *dentry, char *list,

18
fs/hfsplus/xattr_trusted.c
View File

@ -22,22 +22,8 @@ static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name,
static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
char *xattr_name;
int res;
if (!strcmp(name, ""))
return -EINVAL;
xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
GFP_KERNEL);
if (!xattr_name)
return -ENOMEM;
strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
kfree(xattr_name);
return res;
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN);
}
static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list,

18
fs/hfsplus/xattr_user.c
View File

@ -22,22 +22,8 @@ static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
char *xattr_name;
int res;
if (!strcmp(name, ""))
return -EINVAL;
xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
GFP_KERNEL);
if (!xattr_name)
return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
kfree(xattr_name);
return res;
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
}
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,