mirror of
https://chromium.googlesource.com/crosvm/crosvm
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cd88647f7d
The video device needs to redefine the filters for mmap and mprotect,
which the minijail compiler rejects:
compile_file: /usr/share/policy/crosvm/video_device.policy(35): syscall mmap redefined here
compile_file: /usr/share/policy/crosvm/common_device.policy(26): previous definition here
compile_file: /usr/share/policy/crosvm/video_device.policy(36): syscall mprotect redefined here
compile_file: /usr/share/policy/crosvm/common_device.policy(27): previous definition here
compile_filter: compile_file() failed
failed to compile seccomp filter BPF program in '/usr/share/policy/crosvm/video_device.policy'
Prevent this error from happening by inlining the common_device
declarations in video_device and removing the declarations for mmap and
mprotect.
BUG=b:210601086
TEST=Video device can be created when making crosvm use the .policy
files instead of compiled .bpfs.
Change-Id: Ifa7aa84772ae59123cc04e8c9ea845ba6ed7b559
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3341131
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
91 lines
1.7 KiB
Text
91 lines
1.7 KiB
Text
# Copyright 2020 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Rules from common_device.policy with mmap and mprotect removed because the video device needs
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# to allow more arguments for them.
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brk: 1
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clone: arg0 & CLONE_THREAD
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close: 1
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dup2: 1
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dup: 1
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epoll_create1: 1
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epoll_ctl: 1
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epoll_wait: 1
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eventfd2: 1
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exit: 1
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exit_group: 1
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futex: 1
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getcwd: 1
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getpid: 1
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gettid: 1
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gettimeofday: 1
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io_uring_setup: 1
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io_uring_enter: 1
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kill: 1
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madvise: arg2 == MADV_DONTNEED || arg2 == MADV_DONTDUMP || arg2 == MADV_REMOVE
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mremap: 1
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munmap: 1
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nanosleep: 1
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clock_nanosleep: 1
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pipe2: 1
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poll: 1
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ppoll: 1
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read: 1
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readlink: 1
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readlinkat: 1
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readv: 1
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recvfrom: 1
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recvmsg: 1
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restart_syscall: 1
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rt_sigaction: 1
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rt_sigprocmask: 1
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rt_sigreturn: 1
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sched_getaffinity: 1
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sched_yield: 1
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sendmsg: 1
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sendto: 1
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set_robust_list: 1
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sigaltstack: 1
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write: 1
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writev: 1
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fcntl: 1
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uname: 1
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# Syscalls specific to video devices.
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clock_getres: 1
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connect: 1
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getdents: 1
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getdents64: 1
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getegid: 1
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geteuid: 1
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getgid: 1
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getresgid: 1
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getresuid: 1
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getsockname: 1
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getuid: 1
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# ioctl: arg1 == DRM_IOCTL_*
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ioctl: arg1 & 0x6400
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memfd_create: 1
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newfstatat: 1
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openat: 1
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setpriority: 1
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socket: arg0 == AF_UNIX
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stat: 1
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fstat: 1
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fstatfs: 1
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statx: 1
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# Rules needed for minigbm on AMD devices.
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getrandom: 1
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lstat: 1
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# mmap/mprotect differ from the common_device.policy
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mmap: arg2 == PROT_READ|PROT_WRITE || arg2 == PROT_NONE || arg2 == PROT_READ|PROT_EXEC || arg2 == PROT_WRITE || arg2 == PROT_READ
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mprotect: arg2 == PROT_READ|PROT_WRITE || arg2 == PROT_NONE || arg2 == PROT_READ
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sched_setaffinity: 1
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sched_setscheduler: arg1 == SCHED_IDLE || arg1 == SCHED_BATCH
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# Required by mesa on AMD GPU
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sysinfo: 1
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prctl: arg0 == PR_SET_NAME
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