crosvm/seccomp/aarch64/rng_device.policy

# Copyright 2019 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

getrandom: 1
openat: return ENOENT
prctl: arg0 == PR_SET_NAME
seccomp: Add initial arm64 seccomp filters BUG=chromium:1029666 TEST=tast run crostini.LaunchTerminal.download_buster Change-Id: I8fa7dc9df4d5f0144aed80fcd60307036fc7e16d Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1946765 Reviewed-by: Stephen Barber <smbarber@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Tested-by: Stephen Barber <smbarber@chromium.org> Commit-Queue: Stephen Barber <smbarber@chromium.org> 2019-12-02 18:28:28 +00:00			`# Copyright 2019 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`
seccomp: remove redundant unconditional arm/arm64 rules Minijail's policy compiler complains when there's multiple unconditional rules for a syscall. In most cases the rules are redundant to common_device.policy. BUG=None TEST=Ran compile_seccomp_policy.py until it stopped complaining. Change-Id: Ic43d1fd13f9c012641d71e526942229eb8b08ed4 Signed-off-by: Matt Delco <delco@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2034024 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Dylan Reid <dgreid@chromium.org> 2020-02-01 01:29:45 +00:00
devices: Update rng devices to be platform agnostic On Unix, instead of getting random data from `/dev/urandom`, it will get it from the `rand` platform agnostic crate instead. OsRng.fill_bytes on unix will make a syscall to getrandom(2) if available, otherwise it will read from `dev/urandom` after a succesful poll to `dev/random`. Regardless of which way a random data is retrieved, if the entropy pool is not intialized, `fill_bytes` will block until it is intialized. This shouldn't be a problem because it is a one time cost. This CL will also upstream the Windows implementation of the rng device. BUG=b:213149162 TEST=built and presubmits Change-Id: Ic017f11795f8006e0bf2a04eb0478b3a3d336507 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3657812 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Richard Zhang <rizhang@google.com> 2022-05-19 19:07:44 +00:00			`getrandom: 1`
seccomp: remove redundant unconditional arm/arm64 rules Minijail's policy compiler complains when there's multiple unconditional rules for a syscall. In most cases the rules are redundant to common_device.policy. BUG=None TEST=Ran compile_seccomp_policy.py until it stopped complaining. Change-Id: Ic43d1fd13f9c012641d71e526942229eb8b08ed4 Signed-off-by: Matt Delco <delco@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2034024 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Dylan Reid <dgreid@chromium.org> 2020-02-01 01:29:45 +00:00			`openat: return ENOENT`
Specify prctl's policy only once per device The libminijail version in AOSP complains when there are multiple entries for the same system call, which was the case for virtio-fs's policy. BUG=b/185811304 Change-Id: I389c07c86e7d79f16e4f47a893abad598033352a Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2837307 Commit-Queue: Jorge Moreira Broche <jemoreira@google.com> Tested-by: Jorge Moreira Broche <jemoreira@google.com> Reviewed-by: Dylan Reid <dgreid@chromium.org> 2021-04-19 19:59:38 +00:00			`prctl: arg0 == PR_SET_NAME`