Messages in this thread |  | | From | David Howells <> | Subject | [PATCH] implement in-kernel keys & keyring management [try #6] | Date | Wed, 11 Aug 2004 13:34:11 +0100 |
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Hi Linus, Andrew,
> I've modified my patch to avoid a locking error that Al Viro pointed out. If > you have two keyrings A and B, if one process tries to link A to B, whilst > in parallel another process tries to link B to A, it could end up creating a > cycle in the graph. I've added code to serialise link calls with respect to > one another to obviate that problem.
I've fixed another looking bug that that introduced.
Following a reply from Chris Wright, I've also sorted out session keyring management to what is probably a more sane approach. Processes now start off without session keyrings being assigned. A process is automatically subscribed to the user's default session if it doesn't have a session keyring when it tries to access it. Processes inherit their parents session keyring or lack thereof at fork time. Processes can still manually join a session.
The patch can be found at:
http://people.redhat.com/~dhowells/keys/keys-268rc2-6.diff.bz2
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