diff options
Diffstat (limited to 'include/keys/user-type.h')
| -rw-r--r-- | include/keys/user-type.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/include/keys/user-type.h b/include/keys/user-type.h index 5e452c84f1e6..386c31432789 100644 --- a/include/keys/user-type.h +++ b/include/keys/user-type.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* user-type.h: User-defined key type * * Copyright (C) 2005 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 License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _KEYS_USER_TYPE_H @@ -15,6 +11,8 @@ #include <linux/key.h> #include <linux/rcupdate.h> +#ifdef CONFIG_KEYS + /*****************************************************************************/ /* * the payload for a key of type "user" or "logon" @@ -29,7 +27,7 @@ struct user_key_payload { struct rcu_head rcu; /* RCU destructor */ unsigned short datalen; /* length of this data */ - char data[0]; /* actual data */ + char data[] __aligned(__alignof__(u64)); /* actual data */ }; extern struct key_type key_type_user; @@ -37,14 +35,24 @@ extern struct key_type key_type_logon; struct key_preparsed_payload; -extern int user_instantiate(struct key *key, struct key_preparsed_payload *prep); +extern int user_preparse(struct key_preparsed_payload *prep); +extern void user_free_preparse(struct key_preparsed_payload *prep); extern int user_update(struct key *key, struct key_preparsed_payload *prep); -extern int user_match(const struct key *key, const void *criterion); extern void user_revoke(struct key *key); extern void user_destroy(struct key *key); extern void user_describe(const struct key *user, struct seq_file *m); -extern long user_read(const struct key *key, - char __user *buffer, size_t buflen); +extern long user_read(const struct key *key, char *buffer, size_t buflen); + +static inline const struct user_key_payload *user_key_payload_rcu(const struct key *key) +{ + return (struct user_key_payload *)dereference_key_rcu(key); +} + +static inline struct user_key_payload *user_key_payload_locked(const struct key *key) +{ + return (struct user_key_payload *)dereference_key_locked((struct key *)key); +} +#endif /* CONFIG_KEYS */ #endif /* _KEYS_USER_TYPE_H */ |