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-rw-r--r--include/keys/rxrpc-type.h2
-rw-r--r--include/linux/key-type.h112
-rw-r--r--include/linux/key.h99
3 files changed, 127 insertions, 86 deletions
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h
index e2ee73aef0ee..4ea429b18750 100644
--- a/include/keys/rxrpc-type.h
+++ b/include/keys/rxrpc-type.h
@@ -19,4 +19,6 @@
*/
extern struct key_type key_type_rxrpc;
+extern struct key *rxrpc_get_null_key(const char *);
+
#endif /* _KEYS_USER_TYPE_H */
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
new file mode 100644
index 000000000000..65833d4d5998
--- /dev/null
+++ b/include/linux/key-type.h
@@ -0,0 +1,112 @@
+/* Definitions for key type implementations
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_KEY_TYPE_H
+#define _LINUX_KEY_TYPE_H
+
+#include <linux/key.h>
+
+#ifdef CONFIG_KEYS
+
+/*
+ * key under-construction record
+ * - passed to the request_key actor if supplied
+ */
+struct key_construction {
+ struct key *key; /* key being constructed */
+ struct key *authkey;/* authorisation for key being constructed */
+};
+
+typedef int (*request_key_actor_t)(struct key_construction *key,
+ const char *op, void *aux);
+
+/*
+ * kernel managed key type definition
+ */
+struct key_type {
+ /* name of the type */
+ const char *name;
+
+ /* default payload length for quota precalculation (optional)
+ * - this can be used instead of calling key_payload_reserve(), that
+ * function only needs to be called if the real datalen is different
+ */
+ size_t def_datalen;
+
+ /* instantiate a key of this type
+ * - this method should call key_payload_reserve() to determine if the
+ * user's quota will hold the payload
+ */
+ int (*instantiate)(struct key *key, const void *data, size_t datalen);
+
+ /* update a key of this type (optional)
+ * - this method should call key_payload_reserve() to recalculate the
+ * quota consumption
+ * - the key must be locked against read when modifying
+ */
+ int (*update)(struct key *key, const void *data, size_t datalen);
+
+ /* match a key against a description */
+ int (*match)(const struct key *key, const void *desc);
+
+ /* clear some of the data from a key on revokation (optional)
+ * - the key's semaphore will be write-locked by the caller
+ */
+ void (*revoke)(struct key *key);
+
+ /* clear the data from a key (optional) */
+ void (*destroy)(struct key *key);
+
+ /* describe a key */
+ void (*describe)(const struct key *key, struct seq_file *p);
+
+ /* read a key's data (optional)
+ * - permission checks will be done by the caller
+ * - the key's semaphore will be readlocked by the caller
+ * - should return the amount of data that could be read, no matter how
+ * much is copied into the buffer
+ * - shouldn't do the copy if the buffer is NULL
+ */
+ long (*read)(const struct key *key, char __user *buffer, size_t buflen);
+
+ /* handle request_key() for this type instead of invoking
+ * /sbin/request-key (optional)
+ * - key is the key to instantiate
+ * - authkey is the authority to assume when instantiating this key
+ * - op is the operation to be done, usually "create"
+ * - the call must not return until the instantiation process has run
+ * its course
+ */
+ request_key_actor_t request_key;
+
+ /* internal fields */
+ struct list_head link; /* link in types list */
+};
+
+extern struct key_type key_type_keyring;
+
+extern int register_key_type(struct key_type *ktype);
+extern void unregister_key_type(struct key_type *ktype);
+
+extern int key_payload_reserve(struct key *key, size_t datalen);
+extern int key_instantiate_and_link(struct key *key,
+ const void *data,
+ size_t datalen,
+ struct key *keyring,
+ struct key *instkey);
+extern int key_negate_and_link(struct key *key,
+ unsigned timeout,
+ struct key *keyring,
+ struct key *instkey);
+extern void complete_request_key(struct key_construction *cons, int error);
+
+#endif /* CONFIG_KEYS */
+#endif /* _LINUX_KEY_TYPE_H */
diff --git a/include/linux/key.h b/include/linux/key.h
index a9220e75782e..fcdbd5ed227b 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -1,6 +1,6 @@
-/* key.h: authentication token and access key management
+/* Authentication token and access key management
*
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2004, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
@@ -175,78 +175,6 @@ struct key {
} payload;
};
-/*****************************************************************************/
-/*
- * kernel managed key type definition
- */
-typedef int (*request_key_actor_t)(struct key *key, struct key *authkey,
- const char *op, void *aux);
-
-struct key_type {
- /* name of the type */
- const char *name;
-
- /* default payload length for quota precalculation (optional)
- * - this can be used instead of calling key_payload_reserve(), that
- * function only needs to be called if the real datalen is different
- */
- size_t def_datalen;
-
- /* instantiate a key of this type
- * - this method should call key_payload_reserve() to determine if the
- * user's quota will hold the payload
- */
- int (*instantiate)(struct key *key, const void *data, size_t datalen);
-
- /* update a key of this type (optional)
- * - this method should call key_payload_reserve() to recalculate the
- * quota consumption
- * - the key must be locked against read when modifying
- */
- int (*update)(struct key *key, const void *data, size_t datalen);
-
- /* match a key against a description */
- int (*match)(const struct key *key, const void *desc);
-
- /* clear some of the data from a key on revokation (optional)
- * - the key's semaphore will be write-locked by the caller
- */
- void (*revoke)(struct key *key);
-
- /* clear the data from a key (optional) */
- void (*destroy)(struct key *key);
-
- /* describe a key */
- void (*describe)(const struct key *key, struct seq_file *p);
-
- /* read a key's data (optional)
- * - permission checks will be done by the caller
- * - the key's semaphore will be readlocked by the caller
- * - should return the amount of data that could be read, no matter how
- * much is copied into the buffer
- * - shouldn't do the copy if the buffer is NULL
- */
- long (*read)(const struct key *key, char __user *buffer, size_t buflen);
-
- /* handle request_key() for this type instead of invoking
- * /sbin/request-key (optional)
- * - key is the key to instantiate
- * - authkey is the authority to assume when instantiating this key
- * - op is the operation to be done, usually "create"
- * - the call must not return until the instantiation process has run
- * its course
- */
- request_key_actor_t request_key;
-
- /* internal fields */
- struct list_head link; /* link in types list */
-};
-
-extern struct key_type key_type_keyring;
-
-extern int register_key_type(struct key_type *ktype);
-extern void unregister_key_type(struct key_type *ktype);
-
extern struct key *key_alloc(struct key_type *type,
const char *desc,
uid_t uid, gid_t gid,
@@ -259,16 +187,6 @@ extern struct key *key_alloc(struct key_type *type,
#define KEY_ALLOC_QUOTA_OVERRUN 0x0001 /* add to quota, permit even if overrun */
#define KEY_ALLOC_NOT_IN_QUOTA 0x0002 /* not in quota */
-extern int key_payload_reserve(struct key *key, size_t datalen);
-extern int key_instantiate_and_link(struct key *key,
- const void *data,
- size_t datalen,
- struct key *keyring,
- struct key *instkey);
-extern int key_negate_and_link(struct key *key,
- unsigned timeout,
- struct key *keyring,
- struct key *instkey);
extern void key_revoke(struct key *key);
extern void key_put(struct key *key);
@@ -293,6 +211,17 @@ extern struct key *request_key_with_auxdata(struct key_type *type,
const char *callout_info,
void *aux);
+extern struct key *request_key_async(struct key_type *type,
+ const char *description,
+ const char *callout_info);
+
+extern struct key *request_key_async_with_auxdata(struct key_type *type,
+ const char *description,
+ const char *callout_info,
+ void *aux);
+
+extern int wait_for_key_construction(struct key *key, bool intr);
+
extern int key_validate(struct key *key);
extern key_ref_t key_create_or_update(key_ref_t keyring,
@@ -328,8 +257,6 @@ extern int keyring_add_key(struct key *keyring,
extern struct key *key_lookup(key_serial_t id);
-extern void keyring_replace_payload(struct key *key, void *replacement);
-
#define key_serial(key) ((key) ? (key)->serial : 0)
/*

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