From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- include/keys/user-type.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 include/keys/user-type.h (limited to 'include/keys/user-type.h') diff --git a/include/keys/user-type.h b/include/keys/user-type.h new file mode 100644 index 000000000..cebefb069 --- /dev/null +++ b/include/keys/user-type.h @@ -0,0 +1,50 @@ +/* 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 +#define _KEYS_USER_TYPE_H + +#include +#include + +/*****************************************************************************/ +/* + * the payload for a key of type "user" or "logon" + * - once filled in and attached to a key: + * - the payload struct is invariant may not be changed, only replaced + * - the payload must be read with RCU procedures or with the key semaphore + * held + * - the payload may only be replaced with the key semaphore write-locked + * - the key's data length is the size of the actual data, not including the + * payload wrapper + */ +struct user_key_payload { + struct rcu_head rcu; /* RCU destructor */ + unsigned short datalen; /* length of this data */ + char data[0]; /* actual data */ +}; + +extern struct key_type key_type_user; +extern struct key_type key_type_logon; + +struct key_preparsed_payload; + +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 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); + + +#endif /* _KEYS_USER_TYPE_H */ -- cgit v1.2.3-54-g00ecf