diff options
| -rw-r--r-- | include/keys/keyring-type.h | 31 | ||||
| -rw-r--r-- | include/linux/key-ui.h | 66 | ||||
| -rw-r--r-- | security/keys/internal.h | 31 | ||||
| -rw-r--r-- | security/keys/keyring.c | 1 | ||||
| -rw-r--r-- | security/keys/request_key.c | 2 |
5 files changed, 64 insertions, 67 deletions
diff --git a/include/keys/keyring-type.h b/include/keys/keyring-type.h new file mode 100644 index 0000000..843f872 --- /dev/null +++ b/include/keys/keyring-type.h @@ -0,0 +1,31 @@ +/* Keyring key type + * + * Copyright (C) 2008 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_KEYRING_TYPE_H +#define _KEYS_KEYRING_TYPE_H + +#include <linux/key.h> +#include <linux/rcupdate.h> + +/* + * the keyring payload contains a list of the keys to which the keyring is + * subscribed + */ +struct keyring_list { + 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]; +}; + + +#endif /* _KEYS_KEYRING_TYPE_H */ diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h deleted file mode 100644 index e8b8a7a..0000000 --- a/include/linux/key-ui.h +++ /dev/null @@ -1,66 +0,0 @@ -/* key-ui.h: key userspace interface stuff - * - * Copyright (C) 2004 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 _LINUX_KEY_UI_H -#define _LINUX_KEY_UI_H - -#include <linux/key.h> - -/* the key tree */ -extern struct rb_root key_serial_tree; -extern spinlock_t key_serial_lock; - -/* required permissions */ -#define KEY_VIEW 0x01 /* require permission to view attributes */ -#define KEY_READ 0x02 /* require permission to read content */ -#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_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 { - 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 - */ -extern int key_task_permission(const key_ref_t key_ref, - struct task_struct *context, - key_perm_t perm); - -static inline int key_permission(const key_ref_t key_ref, key_perm_t perm) -{ - return key_task_permission(key_ref, current, 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); - -extern struct key_type *key_type_lookup(const char *type); -extern void key_type_put(struct key_type *ktype); - -#define key_negative_timeout 60 /* default timeout on a negative key's existence */ - - -#endif /* _LINUX_KEY_UI_H */ diff --git a/security/keys/internal.h b/security/keys/internal.h index b39f5c2..a60c681 100644 --- a/security/keys/internal.h +++ b/security/keys/internal.h @@ -13,7 +13,6 @@ #define _INTERNAL_H #include <linux/key-type.h> -#include <linux/key-ui.h> static inline __attribute__((format(printf, 1, 2))) void no_printk(const char *fmt, ...) @@ -82,6 +81,9 @@ extern struct mutex key_construction_mutex; extern wait_queue_head_t request_key_conswq; +extern struct key_type *key_type_lookup(const char *type); +extern void key_type_put(struct key_type *ktype); + extern int __key_link(struct key *keyring, struct key *key); extern key_ref_t __keyring_search_one(key_ref_t keyring_ref, @@ -118,6 +120,33 @@ extern struct key *request_key_and_link(struct key_type *type, struct key *dest_keyring, unsigned long flags); +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); + +/* + * check to see whether permission is granted to use a key in the desired way + */ +extern int key_task_permission(const key_ref_t key_ref, + struct task_struct *context, + key_perm_t perm); + +static inline int key_permission(const key_ref_t key_ref, key_perm_t perm) +{ + return key_task_permission(key_ref, current, perm); +} + +/* required permissions */ +#define KEY_VIEW 0x01 /* require permission to view attributes */ +#define KEY_READ 0x02 /* require permission to read content */ +#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_SETATTR 0x20 /* require permission to change attributes */ +#define KEY_ALL 0x3f /* all the above permissions */ + /* * request_key authorisation */ diff --git a/security/keys/keyring.c b/security/keys/keyring.c index a9ab8af..fdf75f9 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -16,6 +16,7 @@ #include <linux/security.h> #include <linux/seq_file.h> #include <linux/err.h> +#include <keys/keyring-type.h> #include <asm/uaccess.h> #include "internal.h" diff --git a/security/keys/request_key.c b/security/keys/request_key.c index a8ebc95..91953c8 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -19,6 +19,8 @@ #include <linux/slab.h> #include "internal.h" +#define key_negative_timeout 60 /* default timeout on a negative key's existence */ + /* * wait_on_bit() sleep function for uninterruptible waiting */ |
