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Make DRM_OS_VERIFYAREA_READ actually verify. Radeon should now be as secure

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on BSD as on Linux.
This commit is contained in:
Eric Anholt 2002-06-27 18:29:44 +00:00
parent 72cdaedece
commit 6f0c4ebd9b
2 changed files with 6 additions and 8 deletions
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7
bsd-core/drm_os_freebsd.h
View file

@ -148,12 +148,11 @@ do { \
#define DRM_OS_COPYFROMUSR(arg1, arg2, arg3) \
copyin(arg2, arg1, arg3)
/* Macros for userspace access with checking readability once */
/* FIXME: can't find equivalent functionality in FreeBSD yet.
* We should be able to make the code as secure as linux if a little bit
* slower, though I don't believe it is as secure yet.
/* FIXME: can't find equivalent functionality for nocheck yet.
* It's be slower than linux, but should be correct.
*/
#define DRM_OS_VERIFYAREA_READ( uaddr, size ) \
(0) /*(!useracc(uaddr, size, VM_PROT_READ))*/
(!useracc((caddr_t)uaddr, size, VM_PROT_READ))
#define DRM_OS_COPYFROMUSR_NC(arg1, arg2, arg3) \
copyin(arg2, arg1, arg3)
#define DRM_OS_FETCHU_32_NC(val, uaddr) \

7
bsd/drm_os_freebsd.h
View file

@ -148,12 +148,11 @@ do { \
#define DRM_OS_COPYFROMUSR(arg1, arg2, arg3) \
copyin(arg2, arg1, arg3)
/* Macros for userspace access with checking readability once */
/* FIXME: can't find equivalent functionality in FreeBSD yet.
* We should be able to make the code as secure as linux if a little bit
* slower, though I don't believe it is as secure yet.
/* FIXME: can't find equivalent functionality for nocheck yet.
* It's be slower than linux, but should be correct.
*/
#define DRM_OS_VERIFYAREA_READ( uaddr, size ) \
(0) /*(!useracc(uaddr, size, VM_PROT_READ))*/
(!useracc((caddr_t)uaddr, size, VM_PROT_READ))
#define DRM_OS_COPYFROMUSR_NC(arg1, arg2, arg3) \
copyin(arg2, arg1, arg3)
#define DRM_OS_FETCHU_32_NC(val, uaddr) \