diff options
| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-11-07 09:59:46 +0100 |
|---|---|---|
| committer | Justus Winter <justus@gnupg.org> | 2016-09-04 12:31:06 +0200 |
| commit | 02cebe45fca07e08503297dcade6f35135007547 (patch) | |
| tree | bc4af673684eb719ea4548a4c4f4220350d8c1fd | |
| parent | 9c98b0d28be5ed8e1807d866f8480833bd73896c (diff) | |
boot: disable device-pass-through if running unprivileged
* boot/boot.c (device_pass_through): New variable.
(main): Disable pass-through if the master device port is not
available to us.
| -rw-r--r-- | boot/boot.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/boot/boot.c b/boot/boot.c index fb26a4b4..ec1ab6c1 100644 --- a/boot/boot.c +++ b/boot/boot.c @@ -80,6 +80,7 @@ static struct termios orig_tty_state; static int isig; static char *kernel_command_line; +static int device_pass_through; static void init_termstate () @@ -533,6 +534,7 @@ main (int argc, char **argv, char **envp) error (4, err, "%s", root_store_name); get_privileged_ports (&privileged_host_port, &master_device_port); + device_pass_through = MACH_PORT_VALID (master_device_port); strcat (bootstrap_args, "f"); @@ -541,7 +543,9 @@ main (int argc, char **argv, char **envp) if (root_store->class == &store_device_class && root_store->name && (root_store->flags & STORE_ENFORCED) - && root_store->num_runs == 1 && root_store->runs[0].start == 0) + && root_store->num_runs == 1 + && root_store->runs[0].start == 0 + && device_pass_through) /* Let known device nodes pass through directly. */ bootdevice = root_store->name; else |