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| author | Fabian Frederick <fabf@skynet.be> | 2015-04-16 12:46:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-17 09:04:04 -0400 |
| commit | a3cef4cd6886c755d2148739699751900b51a365 (patch) | |
| tree | 49e364b4aaee42340108e3653d268f10b89529e0 /fs/hfsplus/xattr.c | |
| parent | f01fa5fb35c132587855be788297771e94b84330 (diff) | |
| download | linux-rpi-a3cef4cd6886c755d2148739699751900b51a365.tar.gz linux-rpi-a3cef4cd6886c755d2148739699751900b51a365.tar.bz2 linux-rpi-a3cef4cd6886c755d2148739699751900b51a365.zip | |
fs/hfsplus: move xattr_name allocation in hfsplus_getxattr()
security/trusted/user/osx getxattr did the same
xattr_name initialization. Move that operation in hfsplus_getxattr().
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>
Diffstat (limited to 'fs/hfsplus/xattr.c')
| -rw-r--r-- | fs/hfsplus/xattr.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c index d98094a9f476..087f8da9e565 100644 --- a/fs/hfsplus/xattr.c +++ b/fs/hfsplus/xattr.c @@ -560,6 +560,30 @@ failed_getxattr_init: return res; } +ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name, + void *value, size_t size, + const char *prefix, size_t prefixlen) +{ + int res; + char *xattr_name; + + 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_getxattr(dentry->d_inode, xattr_name, value, size); + kfree(xattr_name); + return res; + +} + static inline int can_list(const char *xattr_name) { if (!xattr_name) @@ -806,9 +830,6 @@ end_removexattr: static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size, int type) { - char *xattr_name; - int res; - if (!strcmp(name, "")) return -EINVAL; @@ -818,16 +839,9 @@ static int hfsplus_osx_getxattr(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_getxattr(dentry, xattr_name, buffer, size); - kfree(xattr_name); - return res; + return hfsplus_getxattr(dentry, name, buffer, size, + XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN); } static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name, |