blob: 74a00414232cdf8b8aa50d047f070965f34f1fb6 [file] [log] [blame]
# Copyright 2020 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.
# Run virtual_file_provider with minijail0 for ARCVM.
# The mount path is set to /run/arcvm/media/virtual_files in the
# concierge namespace so that files created can be shared with
# ARCVM. The concierge namespace is created in the pre-start script of
# vm_concierge.conf.
set -e
# Create MOUNT_PATH in the concierge namespace.
nsenter --mount=/run/namespaces/mnt_concierge --no-fork \
-- mkdir -p "${MOUNT_PATH}"
# Start virtual-file-provider with MOUNT_PATH as FUSE mount point
# in the concierge namespace.
# -V /run/namespaces/mnt_concierge Enter the concierge mount namespace.
# -e Enter a new network namespace.
# -l Enter a new IPC namespace.
# -c Forbid all caps except CAP_SYS_ADMIN (for mount() syscall) and
# CAP_SETPCAP (to drop capabilities when it's not needed).
# -u/-g Run as virtual-file-provider user/group.
exec minijail0 \
-V /run/namespaces/mnt_concierge \
-e \
-l \
-c 0x200100 \
-u virtual-file-provider -g virtual-file-provider -G \
-- /usr/bin/virtual-file-provider "${MOUNT_PATH}"