X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fkey-ui.h;fp=include%2Flinux%2Fkey-ui.h;h=e8b8a7a5c4968b8c3b4e4dc07e8a047fe2a7ec09;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=60cc7b762e78da106729b02925c8c98d00b0d603;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h
index 60cc7b762..e8b8a7a5c 100644
--- a/include/linux/key-ui.h
+++ b/include/linux/key-ui.h
@@ -1,4 +1,4 @@
-/* key-ui.h: key userspace interface stuff for use by keyfs
+/* key-ui.h: key userspace interface stuff
  *
  * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
@@ -24,67 +24,36 @@ extern spinlock_t key_serial_lock;
 #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_ALL		0x1f	/* all the above permissions */
+#define	KEY_SETATTR	0x20	/* require permission to change attributes */
+#define	KEY_ALL		0x3f	/* all the above permissions */
 
 /*
  * the keyring payload contains a list of the keys to which the keyring is
  * subscribed
  */
 struct keyring_list {
-	unsigned	maxkeys;	/* max keys this list can hold */
-	unsigned	nkeys;		/* number of keys currently held */
+	struct rcu_head	rcu;		/* RCU deletion hook */
+	unsigned short	maxkeys;	/* max keys this list can hold */
+	unsigned short	nkeys;		/* number of keys currently held */
+	unsigned short	delkey;		/* key to be unlinked by RCU */
 	struct key	*keys[0];
 };
 
-
 /*
  * check to see whether permission is granted to use a key in the desired way
  */
-static inline int key_permission(const struct key *key, key_perm_t perm)
-{
-	key_perm_t kperm;
-
-	if (key->uid == current->fsuid)
-		kperm = key->perm >> 16;
-	else if (key->gid != -1 &&
-		 key->perm & KEY_GRP_ALL &&
-		 in_group_p(key->gid)
-		 )
-		kperm = key->perm >> 8;
-	else
-		kperm = key->perm;
-
-	kperm = kperm & perm & KEY_ALL;
-
-	return kperm == perm;
-}
+extern int key_task_permission(const key_ref_t key_ref,
+			       struct task_struct *context,
+			       key_perm_t perm);
 
-/*
- * check to see whether permission is granted to use a key in at least one of
- * the desired ways
- */
-static inline int key_any_permission(const struct key *key, key_perm_t perm)
+static inline int key_permission(const key_ref_t key_ref, key_perm_t perm)
 {
-	key_perm_t kperm;
-
-	if (key->uid == current->fsuid)
-		kperm = key->perm >> 16;
-	else if (key->gid != -1 &&
-		 key->perm & KEY_GRP_ALL &&
-		 in_group_p(key->gid)
-		 )
-		kperm = key->perm >> 8;
-	else
-		kperm = key->perm;
-
-	kperm = kperm & perm & KEY_ALL;
-
-	return kperm != 0;
+	return key_task_permission(key_ref, current, perm);
 }
 
-
-extern struct key *lookup_user_key(key_serial_t id, int create, int part,
-				   key_perm_t 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);