1 #!/bin/sh 2 3 # 4 # Copyright (C) 2013 The Android Open Source Project 5 # 6 # Licensed under the Apache License, Version 2.0 (the "License"); 7 # you may not use this file except in compliance with the License. 8 # You may obtain a copy of the License at 9 # 10 # http://www.apache.org/licenses/LICENSE-2.0 11 # 12 # Unless required by applicable law or agreed to in writing, software 13 # distributed under the License is distributed on an "AS IS" BASIS, 14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 # See the License for the specific language governing permissions and 16 # limitations under the License. 17 # 18 19 # Set the PPP username and password to be used when making connections on 20 # a cellular service. 21 22 PROGRAM=$(basename $0) 23 FLAGS_HELP="Usage: 24 25 Show current PPP username 26 ${PROGRAM} 27 28 Set PPP username and/or password 29 ${PROGRAM} [-u <username>] [-p <password>] 30 31 Clear PPP username and password 32 ${PROGRAM} -c 33 " 34 35 . /usr/share/misc/shflags 36 37 DEFAULT_PROFILE_NAME=default 38 FLIMFLAM=org.chromium.flimflam 39 IMANAGER=${FLIMFLAM}.Manager 40 IPROFILE=${FLIMFLAM}.Profile 41 ISERVICE=${FLIMFLAM}.Service 42 PASSWORD_PROPERTY=Cellular.PPP.Password 43 PROFILE_PROPERTY=Profile 44 USERNAME_PROPERTY=Cellular.PPP.Username 45 46 usage() { 47 echo "$*" 48 echo 49 flags_help 50 exit 1 51 } 52 53 dbus() { 54 local object="$1" 55 local method="$2" 56 shift 2 57 58 dbus-send --system --print-reply --fixed --dest="${FLIMFLAM}" \ 59 "${object}" "${method}" "$@" 60 } 61 62 get_property() { 63 local interface="${1:?internal error}" 64 local object="${2:?internal error}" 65 local property="${3:?nternal error}" 66 67 dbus "${object}" "${interface}.GetProperties" 2>/dev/null \ 68 | sed -n "/\/${property}/{s/.* //p}" 69 } 70 71 display_username() { 72 local service="$1" 73 local username="$(get_property ${ISERVICE} ${service} ${USERNAME_PROPERTY})" 74 75 if [ -n "${username}" ]; then 76 echo "PPP username: " ${username} 77 exit 0 78 fi 79 80 echo "No PPP username." 81 exit 0 82 } 83 84 set_username() { 85 local service="$1" 86 local username="$2" 87 88 echo "Setting PPP username \"${username}\" for service ${service}" 89 dbus "${service}" "${ISERVICE}.SetProperty" \ 90 "string:${USERNAME_PROPERTY}" "variant:string:${username}" 91 } 92 93 set_password() { 94 local service="$1" 95 local password="$2" 96 97 echo "Setting PPP pasword for service ${service}" 98 dbus "${service}" "${ISERVICE}.SetProperty" \ 99 "string:${PASSWORD_PROPERTY}" "variant:string:${password}" 100 } 101 102 clear_property() { 103 local service="$1" 104 local property="$2" 105 106 echo "Clearing ${property} for service ${service}" 107 dbus "${service}" "${ISERVICE}.ClearProperty" "string:${property}" 108 } 109 110 get_profiles() { 111 dbus / "${IMANAGER}.GetProperties" 2>/dev/null \ 112 | sed -n "/\/Profiles\//{s/.* //p}" 113 } 114 115 get_services() { 116 dbus / "${IMANAGER}.GetProperties" 2>/dev/null \ 117 | sed -n "/\/Services\//{s/.* //p}" 118 } 119 120 get_default_profile() { 121 local profile 122 local profile_name 123 124 for profile in $(get_profiles); do 125 profile_name="$(get_property ${IPROFILE} ${profile} Name)" 126 if [ ${profile_name} = ${DEFAULT_PROFILE_NAME} ]; then 127 echo "${profile}" 128 break 129 fi 130 done 131 } 132 133 get_first_cellular_service() { 134 local service 135 local service_type 136 137 for service in $(get_services); do 138 service_type="$(get_property ${ISERVICE} ${service} Type)" 139 if [ "${service_type}" = "cellular" ]; then 140 echo "${service}" 141 break 142 fi 143 done 144 } 145 146 move_service_to_profile() { 147 local service="$1" 148 local profile="$2" 149 150 if [ -z "${service}" ]; then 151 return 1 152 fi 153 154 if [ -z "${profile}" ]; then 155 return 1 156 fi 157 158 dbus "${service}" "${ISERVICE}.SetProperty" \ 159 "string:${PROFILE_PROPERTY}" "variant:string:${profile}" 160 161 local new_profile=$( 162 get_property "${ISERVICE}" "${service}" "${PROFILE_PROPERTY}") 163 if [ "${new_profile}" != "${profile}" ]; then 164 return 1 165 else 166 return 0 167 fi 168 } 169 170 service="$(get_first_cellular_service)" 171 if [ -z "${service}" ]; then 172 echo "No cellular service exists." 173 exit 1 174 fi 175 176 if [ $# -lt 1 ]; then 177 display_username "${service}" 178 fi 179 180 DEFINE_string 'username' "" 'PPP username for the Service' 'u' 181 DEFINE_string 'password' "" 'PPP password for the Service' 'p' 182 DEFINE_boolean 'clear' false \ 183 'clear any username and password that has been previously set' 'c' 184 FLAGS "$@" || exit 1 185 eval set -- "${FLAGS_ARGV}" 186 187 if [ "${FLAGS_clear}" -ne 0 ]; then 188 if [ $# -ne 0 ]; then 189 usage "Too many arguments." 190 fi 191 if [ -n "${FLAGS_username}" ]; then 192 set_username "${service}" "${FLAGS_username}" 193 fi 194 if [ -n "${FLAGS_password}" ]; then 195 set_password "${service}" "${FLAGS_password}" 196 fi 197 echo # newline to separate from set_username/set_password output 198 if move_service_to_profile "${service}" "$(get_default_profile)"; then 199 cat <<-END 200 When your cellular dongle is connected to the system, its connection 201 will be available to any user of this Chromebook, including guest users. 202 203 If you want to leave the dongle connected, without sharing its 204 connection with other users, you will need to clear the PPP username 205 and password by running the following command: 206 ${PROGRAM} -c 207 208 If you clear the PPP username and password, you will need to re-run 209 ${PROGRAM} the next time you need to connect. 210 END 211 else 212 cat <<-END 213 Your cellular connection could not be configured for sharing with 214 other users of this Chromebook. If you would like to share this 215 connection with them, please try running this command again. 216 END 217 fi 218 else 219 if [ $# -ne 0 ]; then 220 usage "Too many arguments." 221 fi 222 clear_property "${service}" "${USERNAME_PROPERTY}" 223 clear_property "${service}" "${PASSWORD_PROPERTY}" 224 fi 225
