Commit Graph

12 Commits

Author SHA1 Message Date
Don Lewis
91e97a8266 In an SMP environment post-Giant it is no longer safe to blindly
dereference the struct sigio pointer without any locking.  Change
fgetown() to take a reference to the pointer instead of a copy of the
pointer and call SIGIO_LOCK() before copying the pointer and
dereferencing it.

Reviewed by:	rwatson
2002-10-03 02:13:00 +00:00
Eric Anholt
4775259180 Remove drm_linux.h, move the two useful defines into drm_drv.h. Use fd locking
on -current.  Actually copy in data from userspace to kernel in the
linux-compat ioctl path.  Make sure ioctl sizes are as expected in the handler
functions.

Reviewed by:	rwatson
2002-09-01 17:45:04 +00:00
Robert Watson
d49fa1ca6e In continuation of early fileop credential changes, modify fo_ioctl() to
accept an 'active_cred' argument reflecting the credential of the thread
initiating the ioctl operation.

- Change fo_ioctl() to accept active_cred; change consumers of the
  fo_ioctl() interface to generally pass active_cred from td->td_ucred.
- In fifofs, initialize filetmp.f_cred to ap->a_cred so that the
  invocations of soo_ioctl() are provided access to the calling f_cred.
  Pass ap->a_td->td_ucred as the active_cred, but note that this is
  required because we don't yet distinguish file_cred and active_cred
  in invoking VOP's.
- Update kqueue_ioctl() for its new argument.
- Update pipe_ioctl() for its new argument, pass active_cred rather
  than td_ucred to MAC for authorization.
- Update soo_ioctl() for its new argument.
- Update vn_ioctl() for its new argument, use active_cred rather than
  td->td_ucred to authorize VOP_IOCTL() and the associated VOP_GETATTR().

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-17 02:36:16 +00:00
Dag-Erling Smørgrav
20d3956e5d Remove <sys/select.h> to unbreak the build. I'm not sure if this affects
the functionality of the drm module, but hopefully it will tide us over
until Eric can take a look at it.
2002-06-16 21:50:42 +00:00
Eric Anholt
4956c7034c Warnings cleanup for gcc3. Also __FUNCTION__ -> __func__
Approved by:	des
2002-05-31 23:19:50 +00:00
Bruce Evans
833863ff77 Include <sys/lockmgr.h> for definitions of deprecated locking interfaces --
don't depend on namespace pollution in other headers.
2002-05-06 23:34:13 +00:00
Alfred Perlstein
e649887b1e Make funsetown() take a 'struct sigio **' so that the locking can
be done internally.

Ensure that no one can fsetown() to a dying process/pgrp.  We need
to check the process for P_WEXIT to see if it's exiting.  Process
groups are already safe because there is no such thing as a pgrp
zombie, therefore the proctree lock completely protects the pgrp
from having sigio structures associated with it after it runs
funsetownlst.

Add sigio lock to witness list under proctree and allproc, but over
proc and pgrp.

Seigo Tanimura helped with this.
2002-05-06 19:31:28 +00:00
Seigo Tanimura
5cbc7077cb The first argument of pgsigio() is now struct sigio **. 2002-05-03 07:45:26 +00:00
Eric Anholt
b1ade6ab46 More diff reduction: Shuffle around some header code as was done in
drmcommand-0-0-1-branch of DRI CVS, more return code cleanup, and remove some
gratuitous ifdefs.

Approved by:	des
2002-04-29 18:18:42 +00:00
Eric Anholt
c9d942be3a Diff reduction to my experimental code: clean up return code handling.
Approved by:	des
2002-04-29 00:25:10 +00:00
Eric Anholt
67a2a28fe4 Hook the DRM up to the build and add it to NOTES.
Approved by:	des
2002-04-28 04:58:40 +00:00
Eric Anholt
4fc9623548 Add the code for the DRM, based on the code from the drm-kmod port.
This is not hooked up yet, that will come later.

Approved by:	des
2002-04-27 20:47:57 +00:00