crosh-workarounds

#!/bin/dash
# Copyright (c) 2009-2010 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.

# Extra crosh commands

if [ "$(basename $0)" = "crosh-workarounds" ]; then
  exec "$(dirname $0)/crosh" --workarounds
fi

# Allow users to set the autoproxy used by Chrome.
# TODO: This option should be removed once proxy settings are available in the
# UI. The value set in the default_proxy file is passed to chrome as an
# environment variable by /sbin/session_manager_setup.sh
HELP="$HELP"'
 autoproxy [get|clear|set <proxy-value>]
  Get, clear, or set the auto proxy setting.
'
cmd_autoproxy() {
  local command="$1"
  local proxy="$2"
  local usage="Usage: proxy [get|clear|set <proxy-value>]"
  local proxy_file="/home/chronos/var/default_proxy"

  if [ -z "$command" ] || [ "$command" = "get" ] ; then
    if [ ! -s "$proxy_file" ] ; then
      echo "No autoproxy is set."
    else
      echo "Autoproxy is set to: $(cat $proxy_file)"
    fi
  elif [ "$command" = "clear" ] ; then
    if [ -s "$proxy_file" ] ; then
      echo -n "" > "$proxy_file"
    fi
    echo "Autoproxy cleared." \
         "Please restart Chrome for the change to take effect."
  elif [ "$command" = "set" ] ; then
    if [ -z "$proxy" ] ; then
      echo "Please provide a proxy value to set."
      echo $usage
      return
    fi
    if [ -x /usr/bin/wget ] && ! /usr/bin/wget -q -O/dev/null "$proxy" ; then
      echo "WARNING: Unable to fetch the autoproxy URL given."
    fi
    mkdir -p $(dirname "$proxy_file")
    echo "$proxy" > "$proxy_file"
    echo "Autoproxy updated." \
         "Please restart Chrome for the change to take effect."
  else
    echo "Unknown command."
    echo $usage
  fi
}

HELP="$HELP"'
 cryptohome [--status]
  Get human-readable status information from cryptohomed
'
cmd_cryptohome() {
  local cryptohome="/usr/sbin/cryptohome"
  if [ ! -f $cryptohome ]; then
    echo "Missing $cryptohome" >&2
  else
    case x"$1" in
             x--status|x)
                $cryptohome --action=status
                ;;
             *)
                echo "Usage: cryptohome [--status]" >&2
    esac
  fi
}

HELP="$HELP"'
 wlan_bgscan [--short secs] [--long secs] [--signal dBm] [<algorithm>]
  Set/display WiFi background scan parameters.
'

cmd_wlan_bgscan() {
  local options=""

  while [ "$(echo "$1" | cut -c1-2)" = "--" ]; do
    # Do just enough parsing to filter/map options; we
    # depend on ping to handle final validation
    if [ "$1" = "--short" ]; then
      shift; options="$options BgscanShortInterval=$1"
    elif [ "$1" = "--long" ]; then
      shift; options="$options ScanInterval=$1"
    elif [ "$1" = "--signal" ]; then
      shift; options="$options BgscanSignalThreshold=$1"
    else
      echo "Unknown option: $1"
      return 1
    fi

    shift
  done

  if [ -n "$1" ]; then
    options="$options BgscanMethod=$1"
  fi

  /usr/local/lib/flimflam/test/set-bgscan $options
  # NB: parameters do not take effect until next association
}