# Copyright 2019 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Copyright 2019 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# This is an allow list of syscalls for most of crosvm devices.
#
# Note that some device policy files don't depend on this policy file
# because of some conflicts such as gpu_common.policy.
# If you want to modify policies for all the devices, please modify
# not only this file but also other *_common.policy files.

brk: 1
clock_gettime: 1
clone: arg0 & CLONE_THREAD
clone3: 1
close: 1
dup3: 1
dup: 1
epoll_create1: 1
epoll_ctl: 1
epoll_pwait: 1
eventfd2: 1
exit: 1
exit_group: 1
ftruncate: 1
futex: 1
getcwd: 1
getpid: 1
gettid: 1
gettimeofday: 1
io_uring_setup: 1
io_uring_register: 1
io_uring_enter: 1
kill: 1
lseek: 1
madvise: arg2 == MADV_DONTNEED || arg2 == MADV_DONTDUMP || arg2 == MADV_REMOVE || arg2 == MADV_MERGEABLE || arg2 == MADV_FREE
membarrier: 1
memfd_create: 1
mmap: arg2 in ~PROT_EXEC
mprotect: arg2 in ~PROT_EXEC
mremap: 1
munmap: 1
nanosleep: 1
clock_nanosleep: 1
pipe2: 1
ppoll: 1
read: 1
readlinkat: 1
readv: 1
recvfrom: 1
recvmsg: 1
restart_syscall: 1
rseq: 1
rt_sigaction: 1
rt_sigprocmask: 1
rt_sigreturn: 1
sched_getaffinity: 1
sched_yield: 1
sendmsg: 1
sendto: 1
set_robust_list: 1
sigaltstack: 1
tgkill: arg2 == SIGABRT
write: 1
writev: 1
fcntl: 1
uname: 1

# ANDROID(b/271625758): disabled to fix duplicate syscall error.
# ## Rules for vmm-swap
# userfaultfd: 1
# # 0xc018aa3f == UFFDIO_API, 0xaa00 == USERFAULTFD_IOC_NEW
# ioctl: arg1 == 0xc018aa3f || arg1 == 0xaa00

# Whitelist vhost_vsock ioctls only.
# arg1 == VHOST_GET_FEATURES ||
# arg1 == VHOST_SET_FEATURES ||
# arg1 == VHOST_SET_OWNER ||
# arg1 == VHOST_RESET_OWNER ||
# arg1 == VHOST_SET_MEM_TABLE ||
# arg1 == VHOST_SET_LOG_BASE ||
# arg1 == VHOST_SET_LOG_FD ||
# arg1 == VHOST_SET_VRING_NUM ||
# arg1 == VHOST_SET_VRING_ADDR ||
# arg1 == VHOST_SET_VRING_BASE ||
# arg1 == VHOST_GET_VRING_BASE ||
# arg1 == VHOST_SET_VRING_KICK ||
# arg1 == VHOST_SET_VRING_CALL ||
# arg1 == VHOST_SET_VRING_ERR ||
# arg1 == VHOST_VSOCK_SET_GUEST_CID ||
# arg1 == VHOST_VSOCK_SET_RUNNING
ioctl: arg1 == 0x8008af00 || arg1 == 0x4008af00 || arg1 == 0x0000af01 || arg1 == 0x0000af02 || arg1 == 0x4008af03 || arg1 == 0x4008af04 || arg1 == 0x4004af07 || arg1 == 0x4008af10 || arg1 == 0x4028af11 || arg1 == 0x4008af12 || arg1 == 0xc008af12 || arg1 == 0x4008af20 || arg1 == 0x4008af21 || arg1 == 0x4008af22 || arg1 == 0x4008af60 || arg1 == 0x4004af61
openat: return ENOENT

prctl: arg0 == PR_SET_NAME