net-misc/qc-netmgr/files/qc-netmgr.conf

# 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.

description   "Start qc-netmgr server"
author        "chromium-os-dev@chromium.org"

start on started rmtfs
stop on stopping rmtfs

# This service keeps the modem data connection alive. It can be killed,
# at the cost of an interruption in LTE connectivity.
oom score -100
respawn

expect fork

# TODO(evgreen): Patch qc-netmgr to retry its connection, then delete this.
pre-start script
  check_service() {
    local timeout=60
    while [ "${timeout}" -gt 0 ]; do
      if qrtr-lookup | grep -q "$1"; then
        break
      fi

      sleep 1
      : $(( timeout -= 1 ))
    done

    if [ "${timeout}" = 0 ]; then
      logger -t "${UPSTART_JOB}" "$1 didn't start."
      exit 1
    fi
  }

  # Don't wait for a modem service on wifi SKUs.
  if grep -q /modem-nolte/ \
     /sys/firmware/devicetree/base/soc@0/remoteproc*/firmware-name; then

    logger -t "${UPSTART_JOB}" "Skipping WDS check for wifi SKU."
    stop; exit 0
  fi

  check_service "Wireless Data Service"
end script

# mmdata_mgr needs CAP_NET_ADMIN to open AF_QIPCRTR socket.
# TODO(evgreen): Put back proper sandboxing:
#   -S /usr/share/policy/qc-netmgr-seccomp.policy \

exec minijail0 --profile=minimalistic-mountns -inNlpvr --uts \
  -c cap_net_admin=e -u nobody -g nobody \
  -- /usr/bin/mmdata_mgr