securityfs: add the ability to support symlinks

Signed-off-by: John Johansen <john.johansen@canonical.com>
Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index af675b576645..caf8b64d8b5c 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1651,6 +1651,10 @@ extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
 					     struct dentry *parent, void *data,
 					     const struct file_operations *fops);
 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
+struct dentry *securityfs_create_symlink(const char *name,
+					 struct dentry *parent,
+					 const char *target,
+					 const struct inode_operations *iops);
 extern void securityfs_remove(struct dentry *dentry);
 
 #else /* CONFIG_SECURITYFS */
@@ -1670,6 +1674,14 @@ static inline struct dentry *securityfs_create_file(const char *name,
 	return ERR_PTR(-ENODEV);
 }
 
+static inline struct dentry *securityfs_create_symlink(const char *name,
+					struct dentry *parent,
+					const char *target,
+					const struct inode_operations *iops)
+{
+	return ERR_PTR(-ENODEV);
+}
+
 static inline void securityfs_remove(struct dentry *dentry)
 {}