lkml.org 
[lkml]   [2012]   [Apr]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] keys: update the documentation with info about "logon" keys
Date
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
Documentation/security/keys.txt | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
index 7877170..1f5517a 100644
--- a/Documentation/security/keys.txt
+++ b/Documentation/security/keys.txt
@@ -123,7 +123,7 @@ KEY SERVICE OVERVIEW

The key service provides a number of features besides keys:

- (*) The key service defines two special key types:
+ (*) The key service defines three special key types:

(+) "keyring"

@@ -137,6 +137,18 @@ The key service provides a number of features besides keys:
blobs of data. These can be created, updated and read by userspace,
and aren't intended for use by kernel services.

+ (+) "logon"
+
+ Like a "user" key, a "logon" key has a payload that is an arbitrary
+ blob of data. It is intended as a place to store secrets which are
+ accessible to the kernel but not to userspace programs.
+
+ The description can be arbitrary, but must be prefixed with a non-zero
+ length string that describes the key "subclass". The subclass is
+ separated from the rest of the description by a ':'. "logon" keys can
+ be created and updated from userspace, but the payload is only
+ readable from kernel space.
+
(*) Each process subscribes to three keyrings: a thread-specific keyring, a
process-specific keyring, and a session-specific keyring.

--
1.7.7.6


\
 
 \ /
  Last update: 2012-04-03 20:37    [from the cache]
©2003-2011 Jasper Spaans