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| author | Michael LeMay <mdlemay@epoch.ncsc.mil> | 2006-06-26 00:24:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 09:58:18 -0700 |
| commit | 06ec7be557a1259611d6093a00463c42650dc71a (patch) | |
| tree | b83cdbc8405e0a174939d36e4fe40fb8adb51071 /Documentation | |
| parent | e51f6d343789a4f0a2a7587ad7ec7746969d5c1c (diff) | |
| download | linux-06ec7be557a1259611d6093a00463c42650dc71a.tar.bz2 | |
[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')
| -rw-r--r-- | Documentation/keys.txt | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/Documentation/keys.txt b/Documentation/keys.txt index 3bbe157b45e4..70e83cf664ae 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 |