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We are going to use separate policy files per device for the following scenarios: 1) Regular in-VMM virtio device, 2) Virtio device over vhost-user, 3) Virtio device over Vvu. Each of these scenarios require slightly different policies as a jailed device process needs to allow not only the system calls necessary for the device to function, but also those required by the virtio transport in use. This CL adds a README.md file to the seccomp directory that details the naming and policy inclusion rules, and updates the serial, xhci and coiommu policies to follow the naming scheme. Vhost-user and VVU policy files will be added along with support for jailing devices when they are in use. BUG=b:217480043 TEST=serial device works with `crosvm run`. Change-Id: I6d454aa6e05d00691fe3346e822ed1fc7b24aed8 Signed-off-by: Alexandre Courbot <acourbot@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3706490 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com>
12 lines
394 B
Text
12 lines
394 B
Text
# Copyright 2019 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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# Syscalls specific to the serial device. This policy file is not meant to be used directly, but
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# rather to be included from another one.
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connect: 1
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bind: 1
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open: return ENOENT
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openat: return ENOENT
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prctl: arg0 == PR_SET_NAME
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