cifs.upcall: use "creduid=" parm by default when available

When I did the original krb5 implementation, I goofed and ended up making
it so that when someone specifies the "uid=" mount option that also affects
the owner of the krb5 credential cache and not just the ownership of the
mount. I'm proposing a patch for the kernel to attempt to fix this by
making the kernel send a "creduid=" parameter in the upcall which is
intended to be the user that should own the credentials cache.

That's not necessarily the same user that has "ownership" of the mount.
Usually the creduid= will be set to the real uid of the user doing the
mounting. When multisession mounts are introduced they will usually set
this to the fsuid that walks into the mount.

To ease the transition, this patch also adds a command line switch that
makes cifs.upcall use the "legacy" uid= parameter instead. Use that if you
want it to behave like it used to.

Signed-off-by: Jeff Layton <jlayton@samba.org>

0 files changed, 0 insertions, 0 deletions