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authorMichael LeMay <mdlemay@epoch.ncsc.mil>2006-06-26 00:24:56 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:18 -0700
commit06ec7be557a1259611d6093a00463c42650dc71a (patch)
treeb83cdbc8405e0a174939d36e4fe40fb8adb51071 /Documentation/keys.txt
parente51f6d343789a4f0a2a7587ad7ec7746969d5c1c (diff)
[PATCH] keys: restrict contents of /proc/keys to Viewable keys
Restrict /proc/keys such that only those keys to which the current task is granted View permission are presented. The documentation is also updated to reflect these changes. Signed-off-by: Michael LeMay <mdlemay@epoch.ncsc.mil> Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/keys.txt')
-rw-r--r--Documentation/keys.txt16
1 files changed, 12 insertions, 4 deletions
diff --git a/Documentation/keys.txt b/Documentation/keys.txt
index 3bbe157b45e..70e83cf664a 100644
--- a/Documentation/keys.txt
+++ b/Documentation/keys.txt
@@ -270,9 +270,17 @@ about the status of the key service:
(*) /proc/keys
- This lists all the keys on the system, giving information about their
- type, description and permissions. The payload of the key is not available
- this way:
+ This lists the keys that are currently viewable by the task reading the
+ file, giving information about their type, description and permissions.
+ It is not possible to view the payload of the key this way, though some
+ information about it may be given.
+
+ The only keys included in the list are those that grant View permission to
+ the reading process whether or not it possesses them. Note that LSM
+ security checks are still performed, and may further filter out keys that
+ the current process is not authorised to view.
+
+ The contents of the file look like this:
SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY
00000001 I----- 39 perm 1f3f0000 0 0 keyring _uid_ses.0: 1/4
@@ -300,7 +308,7 @@ about the status of the key service:
(*) /proc/key-users
This file lists the tracking data for each user that has at least one key
- on the system. Such data includes quota information and statistics:
+ on the system. Such data includes quota information and statistics:
[root@andromeda root]# cat /proc/key-users
0: 46 45/45 1/100 13/10000