crosvm/seccomp/arm/wl_device.policy
Daniel Verkamp a0408258e0 seccomp: whitelist connect for wl_device
The path to the wayland socket changed, so the previous whitelist based
on the connect() arg2 sockaddr_un size now fails.

BUG=None
TEST=Verify that release build of crosvm starts again on chromebook

Change-Id: I3c30977e7c1487b937d69e1dbce4b7fd87136978
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1234827
Reviewed-by: David Riley <davidriley@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-09-20 15:00:24 -07:00

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# 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.
close: 1
dup: 1
dup2: 1
getpid: 1
gettimeofday: 1
exit_group: 1
futex: 1
# Disallow mmap with PROT_EXEC set. The syntax here doesn't allow bit
# negation, thus the manually negated mask constant.
mmap2: arg2 in 0xfffffffb
mprotect: arg2 in 0xfffffffb
# Allow MADV_DONTDUMP only.
madvise: arg2 == 0x00000010
munmap: 1
poll: 1
ppoll: 1
read: 1
recv: 1
sched_getaffinity: 1
set_robust_list: 1
sigaltstack: 1
# Disallow clone's other than new threads.
# arg0 is flags. Because kernel.
clone: arg0 & 0x00010000
write: 1
eventfd2: 1
# 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
# Used to communicate with wayland
recvmsg: 1
sendmsg: 1
# 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
# Allow PR_SET_NAME only.
prctl: arg0 == 15
restart_syscall: 1
# Allow F_GETFL only
fcntl64: arg1 == 3
pipe2: 1
epoll_create1: 1
epoll_ctl: 1
epoll_wait: 1