[OpenAFS] New FC4 Kernel == Can't Find System Call Table

[Chaskiel M Grundman]

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--On Monday, March 13, 2006 13:45:04 -0500 Jack Neely=20
<jjneely@pams.ncsu.edu> wrote:

>  Its a
> much better solution and will lead toward much happiness in the end.
It's a less-hacky solution. I would not call it "better". (At least I don't =

think it's worse anymore. until about 5 minutes ago I thought there was a=20
problem with the access control model because "any" process could join any=20
session keyring. That turns out to be incorrect)

> I use several third party tools with OpenAFS that this would break.  I'm
> willing to work with maintainers and fix them to use the kernel
> keyrings.

The only thing that needs to change is the setpag operation.

instead of

syscall(AFS_SYSCALL, AFSCALL_SETPAG);

or more likely, after it fails.

you would need to do the following keyring operations:
keyring =3D keyctl_join_session_keyring(NULL);
/* This setperm operations revokes all the "owner" rights
    If that were not done, any process could join any pag belonging to the
    same uid */
keyctl_setperm(keyring, KEY_POS_ALL);

lastly, you'd need to call a new afs-specific operation to create the afs=20
pag key in the session keyring. it would probably be a new pioctl. It is=20
conceivable that the final design of keyring based pags would skip this=20
step and just use the serial number of the session keyring as the pag id. I =

haven't thought through all the ramifications of that yet.



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