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Message-Id: <1425058706-11113-1-git-send-email-fabf@skynet.be>
Date: Fri, 27 Feb 2015 18:38:26 +0100
From: Fabian Frederick <fabf@...net.be>
To: linux-kernel@...r.kernel.org
Cc: Fabian Frederick <fabf@...net.be>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 2/2 linux-next] 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
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
fs/hfsplus/xattr.c | 37 +++++++++++++++++++++++++------------
fs/hfsplus/xattr.h | 8 +++-----
fs/hfsplus/xattr_security.c | 19 +++----------------
fs/hfsplus/xattr_trusted.c | 18 ++----------------
fs/hfsplus/xattr_user.c | 18 ++----------------
5 files changed, 35 insertions(+), 65 deletions(-)
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index 087f8da..16f545d 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -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,
diff --git a/fs/hfsplus/xattr.h b/fs/hfsplus/xattr.h
index 570d406..f9b0955 100644
--- a/fs/hfsplus/xattr.h
+++ b/fs/hfsplus/xattr.h
@@ -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);
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index e67d528..aacff00 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -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,
diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c
index 0b7d78f2..bcf6508 100644
--- a/fs/hfsplus/xattr_trusted.c
+++ b/fs/hfsplus/xattr_trusted.c
@@ -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,
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index f8860df..5aa0e6d 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -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,
--
2.1.0
--
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