[AppArmor 28/41] Pass struct vfsmount to the inode_listxattr LSM hook

jjohansen
2007-04-12T09:50:41Z

[-- Attachment #1: security-listxattr.diff --]
[-- Type: text/plain, Size: 3165 bytes --]

This is needed for computing pathnames in the AppArmor LSM.

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: John Johansen <jjohansen@suse.de>

---
fs/xattr.c | 2 +-
include/linux/security.h | 12 +++++++-----
security/dummy.c | 2 +-
security/selinux/hooks.c | 2 +-
4 files changed, 10 insertions(+), 8 deletions(-)

--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -150,7 +150,7 @@ vfs_listxattr(struct dentry *dentry, str
struct inode *inode = dentry->d_inode;
ssize_t error;

- error = security_inode_listxattr(dentry);
+ error = security_inode_listxattr(dentry, mnt);
if (error)
return error;
error = -EOPNOTSUPP;
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -395,7 +395,7 @@ struct request_sock;
* Return 0 if permission is granted.
* @inode_listxattr:
* Check permission before obtaining the list of extended attribute
- * names for @dentry.
+ * names for @dentry and @mnt.
* Return 0 if permission is granted.
* @inode_removexattr:
* Check permission before removing the extended attribute
@@ -1250,7 +1250,7 @@ struct security_operations {
size_t size, int flags);
int (*inode_getxattr) (struct dentry *dentry, struct vfsmount *mnt,
char *name);
- int (*inode_listxattr) (struct dentry *dentry);
+ int (*inode_listxattr) (struct dentry *dentry, struct vfsmount *mnt);
int (*inode_removexattr) (struct dentry *dentry, char *name);
const char *(*inode_xattr_getsuffix) (void);
int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
@@ -1791,11 +1791,12 @@ static inline int security_inode_getxatt
return security_ops->inode_getxattr (dentry, mnt, name);
}

-static inline int security_inode_listxattr (struct dentry *dentry)
+static inline int security_inode_listxattr (struct dentry *dentry,
+ struct vfsmount *mnt)
{
if (unlikely (IS_PRIVATE (dentry->d_inode)))
return 0;
- return security_ops->inode_listxattr (dentry);
+ return security_ops->inode_listxattr (dentry, mnt);
}

static inline int security_inode_removexattr (struct dentry *dentry, char *name)
@@ -2495,7 +2496,8 @@ static inline int security_inode_getxatt
return 0;
}

-static inline int security_inode_listxattr (struct dentry *dentry)
+static inline int security_inode_listxattr (struct dentry *dentry,
+ struct vfsmount *mnt)
{
return 0;
}
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -374,7 +374,7 @@ static int dummy_inode_getxattr (struct
return 0;
}

-static int dummy_inode_listxattr (struct dentry *dentry)
+static int dummy_inode_listxattr (struct dentry *dentry, struct vfsmount *mnt)
{
return 0;
}
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2401,7 +2401,7 @@ static int selinux_inode_getxattr (struc
return dentry_has_perm(current, NULL, dentry, FILE__GETATTR);
}

-static int selinux_inode_listxattr (struct dentry *dentry)
+static int selinux_inode_listxattr (struct dentry *dentry, struct vfsmount *mnt)
{
return dentry_has_perm(current, NULL, dentry, FILE__GETATTR);
}

--