KEYS: Disperse linux/key_ui.h

Disperse the bits of linux/key_ui.h as the reason they were put here (keyfs)
didn't get in.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>

include/linux/key-ui.h → include/keys/keyring-type.h

-/* key-ui.h: key userspace interface stuff
+/* Keyring key type
  *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -9,23 +9,11 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#ifndef _LINUX_KEY_UI_H
-#define _LINUX_KEY_UI_H
+#ifndef _KEYS_KEYRING_TYPE_H
+#define _KEYS_KEYRING_TYPE_H
 
 #include <linux/key.h>
-
-/* the key tree */
-extern struct rb_root key_serial_tree;
-extern spinlock_t key_serial_lock;
-
-/* required permissions */
-#define	KEY_VIEW	0x01	/* require permission to view attributes */
-#define	KEY_READ	0x02	/* require permission to read content */
-#define	KEY_WRITE	0x04	/* require permission to update / modify */
-#define	KEY_SEARCH	0x08	/* require permission to search (keyring) or find (key) */
-#define	KEY_LINK	0x10	/* require permission to link */
-#define	KEY_SETATTR	0x20	/* require permission to change attributes */
-#define	KEY_ALL		0x3f	/* all the above permissions */
+#include <linux/rcupdate.h>
 
 /*
  * the keyring payload contains a list of the keys to which the keyring is
@@ -39,28 +27,5 @@ struct keyring_list {
 	struct key	*keys[0];
 };
 
-/*
- * check to see whether permission is granted to use a key in the desired way
- */
-extern int key_task_permission(const key_ref_t key_ref,
-			       struct task_struct *context,
-			       key_perm_t perm);
-
-static inline int key_permission(const key_ref_t key_ref, key_perm_t perm)
-{
-	return key_task_permission(key_ref, current, perm);
-}
-
-extern key_ref_t lookup_user_key(struct task_struct *context,
-				 key_serial_t id, int create, int partial,
-				 key_perm_t perm);
-
-extern long join_session_keyring(const char *name);
-
-extern struct key_type *key_type_lookup(const char *type);
-extern void key_type_put(struct key_type *ktype);
-
-#define key_negative_timeout	60	/* default timeout on a negative key's existence */
-
 
-#endif /* _LINUX_KEY_UI_H */
+#endif /* _KEYS_KEYRING_TYPE_H */

security/keys/internal.h

@@ -13,7 +13,6 @@
 #define _INTERNAL_H
 
 #include <linux/key-type.h>
-#include <linux/key-ui.h>
 
 static inline __attribute__((format(printf, 1, 2)))
 void no_printk(const char *fmt, ...)
@@ -82,6 +81,9 @@ extern struct mutex key_construction_mutex;
 extern wait_queue_head_t request_key_conswq;
 
 
+extern struct key_type *key_type_lookup(const char *type);
+extern void key_type_put(struct key_type *ktype);
+
 extern int __key_link(struct key *keyring, struct key *key);
 
 extern key_ref_t __keyring_search_one(key_ref_t keyring_ref,
@@ -118,6 +120,33 @@ extern struct key *request_key_and_link(struct key_type *type,
 					struct key *dest_keyring,
 					unsigned long flags);
 
+extern key_ref_t lookup_user_key(struct task_struct *context,
+				 key_serial_t id, int create, int partial,
+				 key_perm_t perm);
+
+extern long join_session_keyring(const char *name);
+
+/*
+ * check to see whether permission is granted to use a key in the desired way
+ */
+extern int key_task_permission(const key_ref_t key_ref,
+			       struct task_struct *context,
+			       key_perm_t perm);
+
+static inline int key_permission(const key_ref_t key_ref, key_perm_t perm)
+{
+	return key_task_permission(key_ref, current, perm);
+}
+
+/* required permissions */
+#define	KEY_VIEW	0x01	/* require permission to view attributes */
+#define	KEY_READ	0x02	/* require permission to read content */
+#define	KEY_WRITE	0x04	/* require permission to update / modify */
+#define	KEY_SEARCH	0x08	/* require permission to search (keyring) or find (key) */
+#define	KEY_LINK	0x10	/* require permission to link */
+#define	KEY_SETATTR	0x20	/* require permission to change attributes */
+#define	KEY_ALL		0x3f	/* all the above permissions */
+
 /*
  * request_key authorisation
  */

security/keys/keyring.c

@@ -16,6 +16,7 @@
 #include <linux/security.h>
 #include <linux/seq_file.h>
 #include <linux/err.h>
+#include <keys/keyring-type.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 

security/keys/request_key.c

@@ -19,6 +19,8 @@
 #include <linux/slab.h>
 #include "internal.h"
 
+#define key_negative_timeout	60	/* default timeout on a negative key's existence */
+
 /*
  * wait_on_bit() sleep function for uninterruptible waiting
  */