| #!/bin/sh |
| |
| # Copyright 2018 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. |
| |
| # Set the APN to be used when making connections on a cellular service. |
| |
| PROGRAM="$(basename "$0")" |
| FLAGS_HELP="Usage: |
| ${PROGRAM} |
| ${PROGRAM} [-n <network_id>] [-u <username] [-p <password] <apn> |
| ${PROGRAM} -c |
| |
| Set the APN to use when connecting to the network specified by <network-id>. |
| If <network-id> is not specified, use the network-id of the currently |
| registered network. |
| |
| The -c option clears the APN to be used, so that the default APN will be used |
| instead. |
| " |
| |
| FLIMFLAM=org.chromium.flimflam |
| IMANAGER=${FLIMFLAM}.Manager |
| ISERVICE=${FLIMFLAM}.Service |
| APN_PROPERTY=Cellular.APN |
| LAST_GOOD_APN_PROPERTY=Cellular.LastGoodAPN |
| |
| SET_APN_HELPER=$(find /usr/lib*/shill/shims/ -name set-apn-helper -type f | \ |
| head -1) |
| if [ -z "${SET_APN_HELPER}" ] ; then |
| echo "set-apn-helper script was not found!" |
| exit 1 |
| fi |
| |
| usage() { |
| echo "$*" |
| echo |
| echo "${FLAGS_HELP}" |
| exit 1 |
| } |
| |
| dbus() { |
| local object="$1" |
| local method="$2" |
| shift 2 |
| |
| dbus-send --system --print-reply --fixed --dest="${FLIMFLAM}" \ |
| "${object}" "${method}" "$@" |
| } |
| |
| get_apn_info() { |
| local service="$1" |
| local property="$2" |
| |
| dbus "${service}" "${ISERVICE}.GetProperties" 2>/dev/null \ |
| | sed -n "/${property}/s/.*\///p" |
| } |
| |
| display_apn() { |
| local service="$1" |
| local apn |
| |
| apn="$(get_apn_info "${service}" "${LAST_GOOD_APN_PROPERTY}")" |
| if [ -n "${apn}" ]; then |
| echo "Last good APN: ${apn}" |
| exit 0 |
| fi |
| |
| apn="$(get_apn_info "${service}" "${APN_PROPERTY}")" |
| if [ -n "${apn}" ]; then |
| echo "User specified APN: ${apn}" |
| exit 0 |
| fi |
| |
| echo "No APN." |
| exit 0 |
| } |
| |
| set_apn() { |
| local service="$1" |
| local apn="$2" |
| local network_id="$3" |
| local username="$4" |
| local password="$5" |
| local args="apn,${apn},network_id,${network_id}" |
| |
| if [ -n "${username}" ]; then |
| args="${args},username,${username}" |
| fi |
| |
| if [ -n "${password}" ]; then |
| args="${args},password,${password}" |
| fi |
| |
| echo "Setting APN \"${apn}\" for network ID ${network_id} for service ${service}" |
| ${SET_APN_HELPER} "${service}" "${APN_PROPERTY}" "${args}" |
| } |
| |
| clear_apn() { |
| local service="$1" |
| |
| echo "Clearing APN for service ${service}" |
| dbus "${service}" "${ISERVICE}.ClearProperty" "string:${APN_PROPERTY}" |
| } |
| |
| get_services() { |
| dbus / "${IMANAGER}.GetProperties" 2>/dev/null \ |
| | sed -n "/\/Services\//{s/.* //p}" |
| } |
| |
| get_service_property() { |
| local service="$1" |
| local property="$2" |
| |
| dbus "${service}" "${ISERVICE}.GetProperties" 2>/dev/null \ |
| | sed -n "/\/${property}/{s/.* //p}" |
| } |
| |
| get_first_cellular_service() { |
| local service |
| local service_type |
| |
| for service in $(get_services); do |
| service_type="$(get_service_property "${service}" Type)" |
| if [ "${service_type}" = "cellular" ]; then |
| echo "${service}" |
| break |
| fi |
| done |
| } |
| |
| get_cellular_service_network_id() { |
| local service="$1" |
| get_service_property "${service}" "Cellular.ServingOperator\/[0-9]\/code" |
| } |
| |
| FLAGS_network_id= |
| FLAGS_username= |
| FLAGS_password= |
| FLAGS_clear=0 |
| while getopts ":n:u:p:c" flag; do |
| case ${flag} in |
| n) # Network ID. |
| FLAGS_network_id="${OPTARG}" |
| ;; |
| u) # Username. |
| FLAGS_username="${OPTARG}" |
| ;; |
| p) # Password. |
| FLAGS_password="${OPTARG}" |
| ;; |
| c) |
| FLAGS_clear=1 |
| ;; |
| *) |
| echo "${FLAGS_HELP}" |
| exit 1 |
| ;; |
| esac |
| done |
| |
| service="$(get_first_cellular_service)" |
| if [ -z "${service}" ]; then |
| echo "No cellular service exists." |
| exit 1 |
| fi |
| |
| if [ $# -lt 1 ]; then |
| display_apn "${service}" |
| fi |
| |
| network_id="${FLAGS_network_id}" |
| if [ -z "${FLAGS_network_id}" ]; then |
| network_id="$(get_cellular_service_network_id "${service}")" |
| if [ -z "${network_id}" ]; then |
| echo "Cannot determine network ID. Use the -n flag to specify it." |
| exit 1 |
| fi |
| fi |
| |
| if [ "${FLAGS_clear}" -ne 0 ]; then |
| if [ $# -lt 1 ]; then |
| usage "The APN must be specified." |
| elif [ $# -gt 1 ]; then |
| usage "Too many arguments." |
| fi |
| set_apn "${service}" "$1" "${network_id}" "${FLAGS_username}" "${FLAGS_password}" |
| else |
| if [ $# -ne 0 ]; then |
| usage "Too many arguments." |
| fi |
| clear_apn "${service}" |
| fi |