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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
#
# Copyright (C) 2013-2016 Aleksander Morgado <aleksander@aleksander.es>
#
# Based on libqmi's qmi-network script
#
print_usage ()
{
echo "usage: $0 [OPTIONS] [DEVICE] [COMMAND]"
}
help ()
{
echo "Usage: mbim-network [OPTIONS] [DEVICE] [COMMAND]"
echo
echo "Simple network management of MBIM devices"
echo
echo "Commands:"
echo " start Start network connection"
echo " stop Stop network connection"
echo " status Query network connection status"
echo
echo "Options:"
echo " --profile=[PATH] Use the profile in the specified path"
echo " --help, -h Show help options"
echo " --version Show version"
echo
echo "Notes:"
echo
echo " 1) [DEVICE] is given as the full path to the cdc-wdm character"
echo " device, e.g.:"
echo " /dev/cdc-wdm0"
echo
echo " 2) The mbim-network script requires a profile to work. Unless"
echo " explicitly specified with \`--profile', the file is assumed to"
echo " be available in the following path:"
echo " /etc/mbim-network.conf"
echo
echo " 3) The APN to use should be configured in the profile, in the"
echo " following way (e.g. assuming APN is called 'internet'):"
echo " APN=internet"
echo
echo " 4) Optional APN user/password strings may be given in the"
echo " following way:"
echo " APN_USER=user"
echo " APN_PASS=password"
echo
echo " 5) If APN user/password is specified, the authentication protocol"
echo " to use (one of PAP, CHAP or MSCHAPV2) must also be specified in"
echo " the following way:"
echo " APN_AUTH=protocol"
echo
echo " 6) If you want to instruct the mbim-network script to use the"
echo " mbim-proxy setup, you can do so by configuring the following line"
echo " in the profile:"
echo " PROXY=yes"
echo
echo " 7) Once the mbim-network script reports a successful connection"
echo " you still need to run a DHCP client on the associated WWAN network"
echo " interface."
echo
}
version ()
{
echo "mbim-network 1.31.2"
echo "Copyright (C) 2013-2021 Aleksander Morgado"
echo "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>"
echo "This is free software: you are free to change and redistribute it."
echo "There is NO WARRANTY, to the extent permitted by law."
echo
}
# Basic options
if [ $# -lt 2 ]; then
if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
help
exit 0
elif [ "$1" = "--version" ]; then
version
exit 0
fi
echo "error: missing arguments" 1>&2
print_usage
exit 255
fi
# Defaults
PROFILE_FILE=/etc/mbim-network.conf
# Device + Command with options; options given first
while [ $# -gt 2 ]; do
OPT="$1"
shift
case "$OPT" in
"--")
break 2;;
"--profile")
if [ $# -gt 2 ]; then
PROFILE_FILE="$1"
shift
else
PROFILE_FILE=""
fi
;;
"--profile="*)
PROFILE_FILE="${OPT#*=}";;
*)
echo >&2 "Invalid option: $OPT"
print_usage
exit 255;;
esac
done
if [ -z "$PROFILE_FILE" ]; then
echo "error: empty profile path given" 1>&2
print_usage
exit 255
fi
if [ $# -ne 2 ] || [ "$1" = "--*" ] || [ "$2" = "--*" ]; then
echo "error: missing arguments" 1>&2
print_usage
exit 255
fi
DEVICE=$1
COMMAND=$2
STATE_FILE=/tmp/mbim-network-state-`basename $DEVICE`
load_profile ()
{
if [ -f "$PROFILE_FILE" ]; then
echo "Loading profile at ${PROFILE_FILE}..."
. $PROFILE_FILE
if [ -n "$APN" ]; then
echo " APN: $APN"
else
echo " APN: unset"
fi
if [ -n "$APN_AUTH" ]; then
echo " APN auth protocol: $APN_AUTH"
else
echo " APN auth protocol: unset"
fi
if [ -n "$APN_USER" ]; then
echo " APN user: $APN_USER"
if [ -z "$APN_AUTH" ]; then
echo "error: APN_USER in the profile requires APN_AUTH" 1>&2
exit 32
fi
else
echo " APN user: unset"
fi
if [ -n "$APN_PASS" ]; then
echo " APN password: $APN_PASS"
if [ -z "$APN_USER" ]; then
echo "error: APN_PASS in the profile requires APN_USER" 1>&2
exit 32
fi
else
echo " APN password: unset"
fi
if [ "$PROXY" = "yes" ]; then
echo " mbim-proxy: $PROXY"
PROXY_OPT='--device-open-proxy'
else
echo " mbim-proxy: no"
fi
else
echo "Profile at '$PROFILE_FILE' not found..."
fi
}
save_state ()
{
KEY=$1
VAL=$2
if [ -n "${PROXY_OPT}" ]; then
return
fi
echo "Saving state at ${STATE_FILE}... ($KEY: $VAL)"
if [ -f "$STATE_FILE" ]; then
PREVIOUS=`cat $STATE_FILE`
PREVIOUS=`echo "$PREVIOUS" | grep -v $KEY`
if [ -n "$PREVIOUS" ]; then
echo $PREVIOUS > $STATE_FILE
else
rm $STATE_FILE
fi
fi
if [ -n "$VAL" ]; then
echo "$KEY=\"$VAL\"" >> $STATE_FILE
fi
}
load_state ()
{
if [ -n "${PROXY_OPT}" ]; then
return
fi
if [ -f "$STATE_FILE" ]; then
echo "Loading previous state from ${STATE_FILE}..."
. $STATE_FILE
if [ -n "$TRID" ]; then
echo " Previous Transaction ID: $TRID"
fi
fi
}
clear_state ()
{
if [ -n "${PROXY_OPT}" ]; then
return
fi
echo "Clearing state at ${STATE_FILE}..."
rm -f $STATE_FILE
}
#
# $ sudo mbimcli -d /dev/cdc-wdm0 --connect="Internet" --no-close
# [/dev/cdc-wdm0] Successfully connected
# [/dev/cdc-wdm0] Connection status:
# Session ID: '0'
# Activation state: 'activated'
# Voice call state: 'none'
# IP type: 'ipv4'
# Context type: 'internet'
# Network error: 'unknown'
#
connect ()
{
# Always try to connect using a fresh session
if [ -z "${PROXY_OPT}" ]; then
if [ -n "$TRID" ]; then
# This will implicitly close the previous session
mbimcli -d $DEVICE --no-open=$TRID
clear_state
fi
fi
if [ -z "${PROXY_OPT}" ]; then
EXTRA_OPT="--no-close"
else
EXTRA_OPT="${PROXY_OPT}"
fi
SUBSCRIBER_READY_CMD="mbimcli -d $DEVICE --query-subscriber-ready-status ${EXTRA_OPT}"
echo "Querying subscriber ready status '$SUBSCRIBER_READY_CMD'..."
SUBSCRIBER_READY_OUT=`$SUBSCRIBER_READY_CMD`
echo $SUBSCRIBER_READY_OUT
if [ -z "${PROXY_OPT}" ]; then
TRID=`echo "$SUBSCRIBER_READY_OUT" | sed -n "s/.*TRID.*'\(.*\)'.*/\1/p"`
EXTRA_OPT="--no-open=$TRID --no-close"
else
EXTRA_OPT="${PROXY_OPT}"
fi
REGISTRATION_STATE_CMD="mbimcli -d $DEVICE --query-registration-state ${EXTRA_OPT}"
echo "Querying registration state '$REGISTRATION_STATE_CMD'..."
REGISTRATION_STATE_OUT=`$REGISTRATION_STATE_CMD`
echo $REGISTRATION_STATE_OUT
if [ -z "${PROXY_OPT}" ]; then
TRID=`echo "$REGISTRATION_STATE_OUT" | sed -n "s/.*TRID.*'\(.*\)'.*/\1/p"`
EXTRA_OPT="--no-open=$TRID --no-close"
else
EXTRA_OPT="${PROXY_OPT}"
fi
ATTACH_CMD="mbimcli -d $DEVICE --attach-packet-service ${EXTRA_OPT}"
echo "Attaching to packet service with '$ATTACH_CMD'..."
ATTACH_OUT=`$ATTACH_CMD`
echo $ATTACH_OUT
if [ -z "${PROXY_OPT}" ]; then
TRID=`echo "$ATTACH_OUT" | sed -n "s/.*TRID.*'\(.*\)'.*/\1/p"`
EXTRA_OPT="--no-open=$TRID --no-close"
else
EXTRA_OPT="${PROXY_OPT}"
fi
CONNECT_ARGS="apn='$APN'"
if [ -n "$APN_AUTH" ]; then
CONNECT_ARGS="${CONNECT_ARGS},auth='$APN_AUTH'"
if [ -n "$APN_USER" ]; then
CONNECT_ARGS="${CONNECT_ARGS},username='$APN_USER'"
if [ -n "$APN_PASS" ]; then
CONNECT_ARGS="${CONNECT_ARGS},password='$APN_PASS'"
fi
fi
fi
CONNECT_CMD="mbimcli -d $DEVICE --connect=$CONNECT_ARGS ${EXTRA_OPT}"
echo "Starting network with '$CONNECT_CMD'..."
CONNECT_OUT=`$CONNECT_CMD`
if [ $? -eq 0 ]; then
echo "Network started successfully"
else
echo "Network start failed"
echo $CONNECT_OUT
fi
# Save the new TRID
if [ -z "${PROXY_OPT}" ]; then
TRID=`echo "$CONNECT_OUT" | sed -n "s/.*TRID.*'\(.*\)'.*/\1/p"`
if [ -n "$TRID" ]; then
save_state "TRID" $TRID
fi
fi
}
#
# $ sudo mbimcli -d /dev/cdc-wdm0 --disconnect="0"
# [/dev/cdc-wdm0] Successfully disconnected
# [/dev/cdc-wdm0] Connection status:
# Session ID: '0'
# Activation state: 'deactivated'
# Voice call state: 'none'
# IP type: 'default'
# Context type: 'internet'
# Network error: 'unknown'
#
disconnect ()
{
# Always close the session when disconnecting
if [ -n "${PROXY_OPT}" ]; then
EXTRA_OPT="${PROXY_OPT}"
elif [ -n "$TRID" ]; then
EXTRA_OPT="--no-open=$TRID"
else
EXTRA_OPT=""
fi
DISCONNECT_CMD="mbimcli -d $DEVICE --disconnect ${EXTRA_OPT}"
echo "Stopping network with '$DISCONNECT_CMD'..."
DISCONNECT_OUT=`$DISCONNECT_CMD`
if [ $? -eq 0 ]; then
echo "Network stopped successfully"
else
echo "Network stop failed"
echo $DISCONNECT_OUT
fi
clear_state
}
#
# $ sudo mbimcli -d /dev/cdc-wdm0 --query-connection-state --no-close
# [/dev/cdc-wdm0] Connection status:
# Session ID: '0'
# Activation state: 'deactivated'
# Voice call state: 'none'
# IP type: 'default'
# Context type: 'none'
# Network error: 'unknown'
#
status ()
{
if [ -n "${PROXY_OPT}" ]; then
EXTRA_OPT="${PROXY_OPT}"
elif [ -n "$TRID" ]; then
EXTRA_OPT="--no-open=$TRID --no-close"
else
EXTRA_OPT=""
fi
STATUS_CMD="mbimcli -d $DEVICE --query-connection-state ${EXTRA_OPT}"
echo "Getting status with '$STATUS_CMD'..."
STATUS_OUT=`$STATUS_CMD`
# Save the new TRID
if [ -z "${PROXY_OPT}" ]; then
TRID=`echo "$STATUS_OUT" | sed -n "s/.*TRID.*'\(.*\)'.*/\1/p"`
if [ -n "$TRID" ]; then
save_state "TRID" $TRID
fi
fi
CONN=`echo "$STATUS_OUT" | sed -n "s/.*Activation state:.*'\(.*\)'.*/\1/p"`
if [ -z "$CONN" ]; then
echo "error: couldn't get connection status" 1>&2
exit 2
else
echo "Status: $CONN"
if [ "$CONN" != "connected" ]; then
exit 64
fi
fi
}
# Main
# Load profile, if any
load_profile
# Load previous state, if any
load_state
# Process commands
case $COMMAND in
"start")
connect
;;
"stop")
disconnect
;;
"status")
status
;;
*)
echo "error: unexpected command '$COMMAND'" 1>&2
print_usage
exit 255
;;
esac
exit 0