commit 28f2da3

launch: Don't allow opening of devices when not active

 1@@ -63,6 +63,7 @@ static struct
 2     int drm_fds[16];
 3     unsigned num_drm_fds;
 4     int tty_fd;
 5+    bool active;
 6 } launcher;
 7 
 8 static struct
 9@@ -178,6 +179,7 @@ static void handle_usr1(int signal)
10     send(launcher.socket, &event, sizeof event, 0);
11     stop_devices(true);
12     ioctl(launcher.tty_fd, VT_RELDISP, 1);
13+    launcher.active = false;
14 }
15 
16 static void handle_usr2(int signal)
17@@ -187,6 +189,7 @@ static void handle_usr2(int signal)
18     ioctl(launcher.tty_fd, VT_RELDISP, VT_ACKACQ);
19     start_devices();
20     send(launcher.socket, &event, sizeof event, 0);
21+    launcher.active = true;
22 }
23 
24 static void forward_signal(int signal)
25@@ -230,6 +233,9 @@ static void handle_socket_data(int socket)
26             switch (major(st.st_rdev))
27             {
28                 case INPUT_MAJOR:
29+                    if (!launcher.active)
30+                        goto fail;
31+
32                     if (launcher.num_input_fds
33                         == ARRAY_LENGTH(launcher.input_fds))
34                     {
35@@ -270,6 +276,9 @@ static void handle_socket_data(int socket)
36 
37             break;
38         case SWC_LAUNCH_REQUEST_ACTIVATE_VT:
39+            if (!launcher.active)
40+                goto fail;
41+
42             if (ioctl(launcher.tty_fd, VT_ACTIVATE, request->vt) == -1)
43             {
44                 fprintf(stderr, "Could not activate VT %d: %s\n",