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/*
* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "sysdeps.h"
#include <unistd.h>
#include <xf86drm.h>
#include "va_drm_auth.h"
#include "va_drm_auth_x11.h"
/* Checks whether DRM connection is authenticated */
bool
va_drm_is_authenticated(int fd)
{
pid_t client_pid;
int i, auth, pid, uid;
unsigned long magic, iocs;
bool is_authenticated = false;
client_pid = getpid();
for (i = 0; !is_authenticated; i++) {
if (drmGetClient(fd, i, &auth, &pid, &uid, &magic, &iocs) != 0)
break;
is_authenticated = auth && pid == client_pid;
}
return is_authenticated;
}
/* Try to authenticate the DRM connection with the supplied magic id */
bool
va_drm_authenticate(int fd, uint32_t magic)
{
/* XXX: try to authenticate through Wayland, etc. */
#ifdef HAVE_VA_X11
if (va_drm_authenticate_x11(fd, magic))
return true;
#endif
/* Default: root + master privs are needed for the following call */
return drmAuthMagic(fd, magic) == 0;
}
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