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seccomp: unrefactor gpu_device.policy

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Due to repeated syscall rules in gpu_device and common_device policies,
minijail fails to compile the gpu_device.policy. This change unrefactors
that policy so that it may compile properly.

BUG=chromium:936633,chromium:837073
TEST=vmc start --enable-gpu termina

Change-Id: I09ab9296247279c3a9ba6e3a6852e2a7ae2612ed
Reviewed-on: https://chromium-review.googlesource.com/1493424
Commit-Ready: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
This commit is contained in:
Zach Reizner 2019-03-01 18:04:22 -08:00 committed by chrome-bot
parent 41a6f84d85
commit a632f4b170
1 changed files with 39 additions and 3 deletions
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42
seccomp/x86_64/gpu_device.policy
View file

@ -2,8 +2,45 @@
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
@include /usr/share/policy/crosvm/common_device.policy
# Rules from common_device.policy with some rules removed because they block certain flags needed
# for gpu.
brk: 1
clone: arg0 & CLONE_THREAD
close: 1
dup2: 1
dup: 1
epoll_create1: 1
epoll_ctl: 1
epoll_wait: 1
eventfd2: 1
exit: 1
exit_group: 1
futex: 1
getpid: 1
gettimeofday: 1
kill: 1
madvise: arg2 == MADV_DONTNEED || arg2 == MADV_DONTDUMP || arg2 == MADV_REMOVE
mremap: 1
munmap: 1
nanosleep: 1
pipe2: 1
poll: 1
ppoll: 1
prctl: arg0 == PR_SET_NAME
read: 1
recvfrom: 1
recvmsg: 1
restart_syscall: 1
rt_sigaction: 1
rt_sigprocmask: 1
rt_sigreturn: 1
sched_getaffinity: 1
sendmsg: 1
set_robust_list: 1
sigaltstack: 1
write: 1
# Rules specific to gpu
connect: 1
fcntl: arg1 == F_DUPFD_CLOEXEC
fstat: 1
@ -18,12 +55,11 @@ lseek: 1
lstat: 1
# Used for sharing memory with wayland. arg1 == MFD_CLOEXEC|MFD_ALLOW_SEALING
memfd_create: arg1 == 3
# mmap/mprotect/open/openat differ from the common_device.policy
mmap: arg2 == PROT_READ|PROT_WRITE || arg2 == PROT_NONE || arg2 == PROT_READ|PROT_EXEC
mprotect: arg2 == PROT_READ|PROT_WRITE || arg2 == PROT_NONE || arg2 == PROT_READ
open: 1
openat: 1
readlink: 1
recvmsg: 1
sendmsg: 1
socket: arg0 == 1 && arg1 == 0x80001 && arg2 == 0
stat: 1