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

[jjohansen@xxxxxxx]

This is needed for computing pathnames in the AppArmor LSM.

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

---
 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);
 }

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