1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
Copyright (C) 2016 Peter Wu <peter@lekensteyn.nl>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "radeontop.h"
#include <xf86drm.h>
#ifdef ENABLE_XCB
#include <dlfcn.h>
typedef void (*auth_magic_func)(drm_magic_t magic);
static void call_authenticate_drm_xcb(drm_magic_t magic) {
void *handle = dlopen("libradeontop_xcb.so", RTLD_NOW);
if (!handle) {
return;
}
auth_magic_func func = (auth_magic_func) dlsym(handle,
"authenticate_drm_xcb");
if (func) {
func(magic);
}
dlclose(handle);
}
#endif
void authenticate_drm(int fd) {
drm_magic_t magic;
/* Obtain magic for our DRM client. */
if (drmGetMagic(fd, &magic) < 0) {
return;
}
/* Try self-authenticate (if we are somehow the master). */
if (drmAuthMagic(fd, magic) == 0) {
if (drmDropMaster(fd)) {
perror(_("Failed to drop DRM master"));
fprintf(stderr, _("\nWARNING: other DRM clients will crash on VT switch while radeontop is running!\npress ENTER to continue\n"));
fgetc(stdin);
}
return;
}
#ifdef ENABLE_XCB
call_authenticate_drm_xcb(magic);
#endif
}
|
