crosvm/seccomp/arm/wl_device.policy
Chirantan Ekbote a00991cd84 Replace dup with fcntl(F_DUPFD_CLOEXEC)
Fds created via dup don't share file descriptor flags with the original
fd, which means that they don't have the FD_CLOEXEC flag set.  Use
fcntl(F_DUPFD_CLOEXEC) so that this flag gets set for the duplicated fds
as well.

BUG=none
TEST=unit tests

Change-Id: Ib471cf40acac1eacf72969ba45247f50b349ed58
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2809687
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2021-04-15 10:34:04 +00:00

19 lines
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Text

# Copyright 2018 The Chromium OS Authors. All rights reserved.
# 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
# Used to connect to wayland. arg0 == AF_UNIX && arg1 == SOCK_STREAM|SOCK_CLOEXEC
socket: arg0 == 1 && arg1 == 0x80001 && arg2 == 0
# arg1 == FIONBIO || arg1 == DMA_BUF_IOCTL_SYNC
ioctl: arg1 == 0x5421 || arg1 == 0x40086200
connect: 1
open: return ENOENT
openat: return ENOENT
# Used for sharing memory with wayland. arg1 == MFD_CLOEXEC|MFD_ALLOW_SEALING
memfd_create: arg1 == 3
# Used to set of size new memfd
ftruncate64: 1
# Used to determine shm size after recvmsg with fd
_llseek: 1