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Diffstat (limited to 'include/linux/key.h')
-rw-r--r--include/linux/key.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/key.h b/include/linux/key.h
index 96933b1e5d24..5231800770e1 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -124,7 +124,10 @@ static inline unsigned long is_key_possessed(const key_ref_t key_ref)
struct key {
atomic_t usage; /* number of references */
key_serial_t serial; /* key serial number */
- struct rb_node serial_node;
+ union {
+ struct list_head graveyard_link;
+ struct rb_node serial_node;
+ };
struct key_type *type; /* type of key */
struct rw_semaphore sem; /* change vs change sem */
struct key_user *user; /* owner of this key */
@@ -133,6 +136,7 @@ struct key {
time_t expiry; /* time at which key expires (or 0) */
time_t revoked_at; /* time at which key was revoked */
};
+ time_t last_used_at; /* last time used for LRU keyring discard */
uid_t uid;
gid_t gid;
key_perm_t perm; /* access permissions */
@@ -156,6 +160,7 @@ struct key {
#define KEY_FLAG_USER_CONSTRUCT 4 /* set if key is being constructed in userspace */
#define KEY_FLAG_NEGATIVE 5 /* set if key is negative */
#define KEY_FLAG_ROOT_CAN_CLEAR 6 /* set if key can be cleared by root without permission */
+#define KEY_FLAG_INVALIDATED 7 /* set if key has been invalidated */
/* the description string
* - this is used to match a key against search criteria
@@ -199,6 +204,7 @@ extern struct key *key_alloc(struct key_type *type,
#define KEY_ALLOC_NOT_IN_QUOTA 0x0002 /* not in quota */
extern void key_revoke(struct key *key);
+extern void key_invalidate(struct key *key);
extern void key_put(struct key *key);
static inline struct key *key_get(struct key *key)
@@ -236,7 +242,7 @@ extern struct key *request_key_async_with_auxdata(struct key_type *type,
extern int wait_for_key_construction(struct key *key, bool intr);
-extern int key_validate(struct key *key);
+extern int key_validate(const struct key *key);
extern key_ref_t key_create_or_update(key_ref_t keyring,
const char *type,
@@ -319,6 +325,7 @@ extern void key_init(void);
#define key_serial(k) 0
#define key_get(k) ({ NULL; })
#define key_revoke(k) do { } while(0)
+#define key_invalidate(k) do { } while(0)
#define key_put(k) do { } while(0)
#define key_ref_put(k) do { } while(0)
#define make_key_ref(k, p) NULL