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#!/bin/sh
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# ----------------------------------------------------------------------
#
# setnet.sh -- view and configure network interfaces
#
# ----------------------------------------------------------------------
#
# (c) KatolaZ (katolaz@freaknet.org) -- 2016/12/26
#
#
##
## Initialisation
##
VERSION=0.2
TOPSTR="setnet-0.1 [user: $(id -run)]"
DIALOG="dialog --backtitle \"${TOPSTR}\" "
TMPFILE=$( (tempfile) 2>/dev/null) || TMPFILE=/tmp/setnet_$$
WPA_PIDFILE=$( (tempfile) 2>/dev/null) || WPA_PIDFILE=/tmp/setnet_wpapid_$$
WINDOW_WIDTH=75
WINDOW_HEIGHT=20
INFO_WIDTH=40
INFO_HEIGHT=10
FORM_WIDTH=60
FORM_HEIGHT=12
NET_FAMILIES="inet inet6"
##
## Load setnetrc
##
##function
load_setnetrc(){
WPA_FILE=""
LOGFILE=""
## If we were given a parameter, is the rc file to load...
##
if [ $# -ge 1 ]; then
. "$1"
return
fi
##
## Otherwise, let's look in the standard locations, namely:
##
##
## 1) /etc/setnetrc
##
if [ -f /etc/setnetrc ]; then
SETNETRC=/etc/setnetrc
fi
##
## 2) ~/.setnetrc
##
if [ -f ~/.setnetrc ]; then
SETNETRC=~/.setnetrc
fi
. ${SETNETRC}
if [ -z ${WPA_FILE} ]; then
echo "Could not find WPA_FILE defined anywhere. Exiting"
exit 1
fi
if [ -z ${LOGFILE} ]; then
echo "Could not find LOGFILE defined anywhere. Exiting"
exit 1
fi
}
##function
cleanup(){
rm -f ${TMPFILE}
rm -f ${WPA_PIDFILE}
}
###################
# #
# LOGGING #
# #
###################
##
## log() takes two arguments, namely the label and the message
##
##
##function
log(){
##local
LABEL=$1
##local
MSG=$2
echo "${LABEL}:" "${MSG}" >> "${LOGFILE}"
}
##
## Check whether the shell which called the script is supported, or
## exit. Currently, we support the follwing shells:
##
## - bash
## - busybox
## - dash
## - ksh
## - posh
## - sh
## - yash
##
##function
check_shell(){
##
## FIXME!!! THIS TEST DOES NOT WORK yet...
##
CUR_SH=$(ps -p $$ -o comm=)
case ${CUR_SH} in
ash|bash|busybox|dash|ksh|posh|sh|yash)
log "check_shell" "The current shell (${CUR_SH}) is supported"
return
;;
*)
log "check_shell" "The current shell (${CUR_SH}) is not supported"
echo "The current shell (${CUR_SH}) is not supported. Exiting..."
exit 1
;;
esac
}
##
## Check dependencies
##
## - check if the current shell is supported through check_shell
##
## - each command in HARD_DEPS MUST exists, or the script exits
##
## - each command in SOFT_DEPS SHOULD exists, od the script will log a
## warning
##
##function
check_deps(){
## FIXME FIRST.... check_shell
for h in ${HARD_DEPS}; do
_W=$(which ${h})
if [ -z $_W ]; then
echo "Error: required command \"${h}\" not found. Exiting..."
exit 1
fi
log "check_deps" "${h}...found"
done
for s in ${SOFT_DEPS}; do
_S=$(which ${s})
if [ -z $_S ]; then
log "check_deps" "WARNING: ${s} not found! Some functions might not work properly"
fi
done
}
##########################################
##function
edit_file(){
##local
FILEIN=$1
log "edit_file" "editing file ${FILEIN}"
eval "${DIALOG} --title 'Editing file: ${FILEIN}' \
--editbox ${FILEIN} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" 2> ${TMPFILE}
if [ $? -eq 0 ]; then
log "edit_file" "Copying ${TMPFILE} into ${FILEIN}"
if cp "${TMPFILE}" "${FILEIN}"
then
eval "${DIALOG} --clear --msgbox 'File ${FILEIN} saved successfully' \
${INFO_HEIGHT} ${INFO_WIDTH}"
else
eval "${DIALOG} --clear --msgbox 'Error saving file ${FILEIN}' \
${INFO_HEIGHT} ${INFO_WIDTH}"
fi
else
log "edit_file" "Editing of ${FILEIN} aborted..."
eval "${DIALOG} --clear --msgbox 'File ${FILEIN} not saved' \
${INFO_HEIGHT} ${INFO_WIDTH}"
fi
}
##
## Read all the configured addresses for a given inet family
##
##function
get_addr_family(){
##local
DEVNAME=$1
##local
DEVFAMILY=$2
NUMADDR=$(ip -f "${DEVFAMILY}" addr show "${DEVNAME}" | grep -c "${DEVFAMILY}")
ADDR_STR=""
for i in $(seq ${NUMADDR}); do
ADDR=$(ip -f "${DEVFAMILY}" addr show "${DEVNAME}" | grep "${DEVFAMILY}" | \
tail -n +$i | head -1 | sed -r -e "s:^\ +::g" | cut -d " " -f 2,4,6 |\
sed -r -e "s:\ : -- :g")
ADDR_STR="${ADDR_STR}\n${DEVFAMILY}: ${ADDR}\n"
done
}
##
## Show the current configuration of a given device
##
##function
show_device_conf(){
##local
DEVNAME=$1
if [ -z "${DEVNAME}" ]; then
return -1
fi
DEVMAC=$(ip link show "${DEVNAME}" | tail -n +2 | sed -r 's/^\ +//g' | cut -d " " -f 2)
DEVCONF="MAC: ${DEVMAC}\n"
log "show_device_conf" "NET_FAMILIES: \"${NET_FAMILIES}\""
for f in ${NET_FAMILIES}; do
get_addr_family ${DEVNAME} ${f}
log "show_device_conf" "family: ${f} ADDR_STR: \"${ADDR_STR}\""
if [ -z "${ADDR_STR}" ]; then
DEVCONF="${DEVCONF}${f}: Unconfigured\n"
else
DEVCONF="${DEVCONF}${ADDR_STR}"
fi
log "show_device_conf" "DEVCONF: ${DEVCONF}"
done
DEVCONF="${DEVCONF}\n== name servers ==\n$(grep '^nameserver' /etc/resolv.conf)"
eval "${DIALOG} --clear --title 'Current configuration of device: ${DEVNAME}' \
--msgbox '\n\n${DEVCONF}' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} "
return 0
}
##function
config_ethernet_static(){
##local
DEV_IP="192.168.1.2"
##local
DEV_NET="192.168.1.0"
##local
DEV_NETMASK="255.255.255.0"
##local
DEV_GW="192.168.1.1"
##local
DEV_DNS1="208.67.222.222"
##local
DEV_DNS2="208.67.220.220"
##local
DEVNAME=$1
exec 3>&1
eval "${DIALOG} --clear --form 'Set network for device: ${DEVNAME}'" \
${FORM_HEIGHT} ${FORM_WIDTH} 0 \
"IP" 1 1 "${DEV_IP}" 1 16 16 16 \
"Network" 2 1 "${DEV_NET}" 2 16 16 16 \
"Netmask" 3 1 "${DEV_NETMASK}" 3 16 16 16 \
"Gateway" 4 1 "${DEV_GW}" 4 16 16 16 \
"Primary DNS" 5 1 "${DEV_DNS1}" 5 16 16 16 \
"Secondary DNS" 6 1 "${DEV_DNS2}" 6 16 16 16 2> ${TMPFILE}
if [ $? -eq 1 ]; then
eval "${DIALOG} --infobox 'Configuration of ${DEVNAME} aborted' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
read -d "*" DEV_IP DEV_NET DEV_NETMASK DEV_GW DEV_DNS1 DEV_DNS2 < ${TMPFILE}
eval "${DIALOG} --msgbox 'Proposed configuration of ${DEVNAME}:\n ${DEV_IP}\n${DEV_NET}\n${DEV_NETMASK}\n${DEV_GW}\n${DEV_DNS1}\n${DEV_DNS2}'\
${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
## Configure IP
ip link set "${DEVNAME}" down
ip link set "${DEVNAME}" up
ip address flush dev "${DEVNAME}"
ip address add "${DEV_IP}/${DEV_NETMASK}" dev "${DEVNAME}"
## Configure GW
ip route flush dev "${DEVNAME}"
ip route add "${DEV_NET}/${DEV_NETMASK}" dev "${DEVNAME}"
ip route add default via "${DEV_GW}"
## Configure DNS
mv /etc/resolv.conf /etc/resolv.conf.bak
if [ -n "${DEV_DNS1}" ]; then
echo "nameserver ${DEV_DNS1}" >> /etc/resolv.conf
fi
if [ -n "${DEV_DNS2}" ]; then
echo "nameserver ${DEV_DNS2}" >> /etc/resolv.conf
fi
show_device_conf "${DEVNAME}"
}
##function
config_ethernet_dhcp(){
##local
DEVNAME=$1
eval "${DIALOG} --infobox 'Running \"dhclient ${DEVNAME}\"' ${INFO_HEIGHT} ${INFO_WIDTH}"
dhclient -r ${DEVNAME}
dhclient ${DEVNAME}
show_device_conf ${DEVNAME}
}
##function
config_ethernet(){
##local
DEVNAME=$1
while true; do
eval "${DIALOG} --clear --cancel-label 'Up' \
--menu 'Configuring ${DEVNAME}' ${INFO_HEIGHT} ${INFO_WIDTH} 4 \
'DHCP' ''\
'Static' ''" 2>${TMPFILE}
if [ $? -eq 1 ]; then
return
fi
ACTION=$(cat ${TMPFILE})
case ${ACTION} in
"Static")
config_ethernet_static ${DEVNAME}
;;
"DHCP")
config_ethernet_dhcp ${DEVNAME}
;;
esac
done
}
##function
wifi_essid_from_mac(){
##local
DEVNAME=$1
##local
W_MAC=$2
W_ESSID=$(wpa_cli -i "${DEVNAME}" scan_results | grep -E "^${W_MAC}" | \
sed -r -e 's/\t/\|/g' | cut -d "|" -f 5)
log "wifi_essid_from_mac" "Recovered ESSID: ${W_ESSID}"
}
##function
wifi_flags_from_mac(){
##local
DEVNAME=$1
##local
W_MAC=$2
W_FLAGS=$(wpa_cli -i "${DEVNAME}" scan_results | grep -E "^${W_MAC}" | \
sed -r -e 's/\t/\|/g' | cut -d "|" -f 4)
log "wifi_essid_from_mac" "Recovered W_FLAGS: ${W_FLAGS}"
}
##function
wifi_network_list(){
##local
DEVNAME=$1
wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' > ${TMPFILE}
NETLIST=""
LAST_IFS=$IFS
IFS="|"
while read NETNUM NETESSID NETBSSID NETFLAGS; do
IS_DIS=$(echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -c -i disabled )
if [ ${IS_DIS} -eq 1 ]; then
STATUS="(DIS)"
else
STATUS="(ENAB)"
fi
IS_CUR=$(echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -c -i current )
if [ ${IS_CUR} -eq 1 ]; then
STATUS="${STATUS}(CUR)"
fi
NETLIST="${NETLIST} ${NETNUM} \"${NETESSID}-${STATUS}\""
done < ${TMPFILE}
IFS=${LAST_IFS}
log "wifi_network_list" "NETLIST: ${NETLIST}"
}
##
## Manage the authentication for a given wifi ESSID
##
##function
wifi_authenticate(){
##local
DEVNAME=$1
##local
W_MAC=$2
log "wifi_authenticate" "configuring ${DEVNAME} on ${W_MAC}"
## This will set the variable W_ESSID appropriately
wifi_essid_from_mac ${DEVNAME} ${W_MAC}
## This will set the variable W_FLAGS appropriately
wifi_flags_from_mac ${DEVNAME} ${W_MAC}
log "wifi_authenticate" "configuring essid: ${W_ESSID} on device: ${DEVNAME}"
log "wifi_authenticate" "W_FLAGS: ${W_FLAGS}"
NET_EXISTS=$(wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
| cut -d "|" -f 2 | grep -c "${W_ESSID}$" )
if [ ${NET_EXISTS} != 0 ]; then
NET_NUM=$(wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
| cut -d "|" -f 1,2 | grep "${W_ESSID}$" | cut -d "|" -f 1)
wpa_cli -i ${DEVNAME} remove_network ${NET_NUM} > ${TMPFILE}
STATUS=$(cat ${TMPFILE})
if [ "${STATUS}" != "OK" ]; then
eval "${DIALOG} --msgbox 'Error while removing existing network:\n$essid: {W_ESSID}'"
${INFO_HEIGHT} ${INFO_WIDTH}
return
fi
fi
HAS_WPA=$(echo "${W_FLAGS}" | grep -E -c "WPA.*-PSK" )
log "wifi_authenticate" "HAS_WPA: \"${HAS_WPA}\""
### This section will configure WPA-PSK or WPA2-PSK
if [ "${HAS_WPA}" != "0" ]; then
PSK=""
PSK_LENGTH=${#PSK}
while [ ${PSK_LENGTH} -le 7 ]; do
eval "${DIALOG} --insecure --inputbox 'Please insert WPA PSK\n(8 characters)' \
${INFO_HEIGHT} ${INFO_WIDTH}" 2> ${TMPFILE}
if [ $? -eq 1 ]; then
eval "${DIALOG} --clear --msgbox 'Network configuration aborted!!!' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return 1
fi
PSK=$(cat ${TMPFILE})
PSK_LENGTH=${#PSK}
done
NET_NUM=$(wpa_cli -i ${DEVNAME} add_network | tail -1)
wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""
wpa_cli -i ${DEVNAME} set_network ${NET_NUM} psk \"${PSK}\"
## remove the password from tmpfile
echo "" > ${TMPFILE}
eval "${DIALOG} --clear --defaultno --yesno \
'Network \"${W_ESSID}\" added\nSave configuration file?' \
${INFO_HEIGHT} ${INFO_WIDTH} " 2> ${TMPFILE}
if [ $? -eq 0 ]; then
## Save the config file
wifi_save_file ${DEVNAME}
fi
eval "${DIALOG} --msgbox 'Network added successfully' ${INFO_HEIGHT} ${INFO_WIDTH}"
return 0
fi
HAS_ESS=$(echo "${W_FLAGS}" | grep -E -c "ESS" )
log "wifi_authenticate" "HAS_ESS: \"${HAS_ESS}\""
if [ "${HAS_ESS}" != "0" ]; then
NET_NUM=$(wpa_cli -i ${DEVNAME} add_network | tail -1)
log "wifi_authenticate" "NET_NUM: ${NET_NUM}"
wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""
wpa_cli -i ${DEVNAME} set_network ${NET_NUM} key_mgmt NONE
eval "${DIALOG} --clear --defaultno --yesno \
'Network \"${W_ESSID}\" added\nSave configuration file?' \
${INFO_HEIGHT} ${INFO_WIDTH} " 2> ${TMPFILE}
if [ $? -eq 0 ]; then
## Save the config file
wifi_save_file ${DEVNAME}
fi
return 0
else
eval " ${DIALOG} --msgbox 'Error occurred!!!!' ${INFO_HEIGHT} ${INFO_WIDTH}"
return 0
fi
## No available authentication methods....
eval "${DIALOG} --msgbox 'No supported authentication method for ${W_ESSID}'"
return 1
}
##
## Configure a new connection from a list of available wi-fi networks
##
##function
wifi_add(){
##local
DEVNAME=$1
wpa_cli -i ${DEVNAME} scan
eval "${DIALOG} --timeout 4 --msgbox 'Scanning for networks...' \
${INFO_HEIGHT} ${INFO_WIDTH}"
wpa_cli -i ${DEVNAME} scan_results | grep -E "^[0-9a-f][0-9a-f]:" | \
sed -r -e 's/\t/|/g' |\
sort -t "|" -r -n -k 3 > ${TMPFILE}
wifinets=""
LAST_IFS=$IFS
IFS="|"
while read W_MAC W_FREQ W_STRNGT W_FLAGS W_ESSID; do
log "wifi_add" "W_ESSID: \"${W_ESSID}\""
wifinets="${wifinets} ${W_MAC} \"${W_ESSID} -- ${W_FLAGS}\""
done < ${TMPFILE}
IFS=${LAST_IFS}
log "wifi_add" "Wifi nets: \n${wifinets}\n==="
eval "dialog --menu 'Select a network' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 \
${wifinets} " 2> ${TMPFILE}
if [ $? -eq 1 ]; then
return
fi
W_MAC=$(cat ${TMPFILE})
wifi_authenticate ${DEVNAME} ${W_MAC}
if [ $? != "0" ]; then
eval "${DIALOG} --msgbox 'Error while configuring ${DEVNAME}' "
fi
return $?
}
##function
wifi_save_file(){
##local
DEVNAME=$1
wpa_cli -i ${DEVNAME} save_config | tail -1 > ${TMPFILE}
SAVE_STATUS=$(cat ${TMPFILE})
if [ "${SAVE_STATUS}" = "OK" ]; then
eval "${DIALOG} --msgbox 'Current configuration dumped to file ${WPA_FILE}' \
${INFO_HEIGHT} ${INFO_WIDTH}"
else
eval "${DIALOG} --msgbox 'Error while saving configuration to file ${WPA_FILE}' \
${INFO_HEIGHT} ${INFO_WIDTH}"
fi
}
##function
wifi_remove(){
##local
DEVNAME=$1
wifi_network_list ${DEVNAME}
eval "${DIALOG} --menu 'Select network to remove' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
2> ${TMPFILE}
if [ $? -eq 0 ]; then
## a network has been selected
NETNUM=$(cat ${TMPFILE})
WPA_STATUS=$(wpa_cli -i ${DEVNAME} remove_network ${NETNUM} | tail -1 )
if [ "${WPA_STATUS}" = "OK" ]; then
eval "${DIALOG} --clear --defaultno --yesno \
'Network ${NETNUM} removed\nSave configuration file?' \
${INFO_HEIGHT} ${INFO_WIDTH}" 2> ${TMPFILE}
if [ $? -eq 0 ]; then
## Save the config file
wifi_save_file ${DEVNAME}
fi
return
else
eval "${DIALOG} --clear --msgbox 'Network ${NETNUM} NOT removed' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
else
eval "${DIALOG} --clear --msgbox 'No network removed!!!' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
}
##function
wifi_restart_wpa(){
##local
DEVNAME=$1
##local
WPA_FILE=$2
WPA_PID=$(ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" |
sed -r -e 's/^\ +//g' | cut -d " " -f 1)
log "wifi_restart_wpa" "WPA_PID: ${WPA_PID}"
kill -9 ${WPA_PID}
wpa_supplicant -B -i ${DEVNAME} -c ${WPA_FILE} -P${WPA_PIDFILE} 2>/dev/null
WPA_PID=$(ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" | \
sed -r -e 's/^\ +//g' | cut -d " " -f 1 )
WPA_PID_SAVED=$(cat ${WPA_PIDFILE})
log "wifi_restart_wpa" "WPA_PID: ${WPA_PID} WPA_PID_SAVED: ${WPA_PID_SAVED}"
if [ -n "${WPA_PID}" ] && [ "${WPA_PID}" != "${WPA_PID_SAVED}" ]; then
eval "${DIALOG} --clear --msgbox 'Error restarting wpa_supplicant' \
${INFO_HEIGHT} ${INFO_WIDTH}"
else
eval "${DIALOG} --clear --msgbox 'wpa_supplicant restarted successfully' \
${INFO_HEIGHT} ${INFO_WIDTH}"
fi
}
##
## wifi_enable: show the list of configured networks, and enable the
## one the used has clicked on
##
##function
wifi_enable(){
##local
DEVNAME=$1
wifi_network_list ${DEVNAME}
eval "${DIALOG} --menu 'Select configured network' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
2> ${TMPFILE}
if [ $? -eq 0 ]; then
## a network has been selected
NETNUM=$(cat ${TMPFILE})
WPA_STATUS=$(wpa_cli -i ${DEVNAME} enable ${NETNUM} | tail -1 )
if [ "${WPA_STATUS}" = "OK" ]; then
eval "${DIALOG} --clear --msgbox 'Network ${NETNUM} enabled' \
${INFO_HEIGHT} ${INFO_WIDTH}"
config_ethernet ${DEVNAME}
return
else
eval "${DIALOG} --clear --msgbox 'Network ${NETNUM} NOT enabled' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
else
eval "${DIALOG} --clear --msgbox 'No network enabled!!!' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
}
##function
wifi_disable(){
##local
DEVNAME=$1
wifi_network_list ${DEVNAME}
eval "${DIALOG} --menu 'Select configured network' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
2> ${TMPFILE}
if [ $? -eq 0 ]; then
## a network has been selected
NETNUM=$(cat ${TMPFILE})
WPA_STATUS=$(wpa_cli -i ${DEVNAME} disable ${NETNUM} | tail -1 )
if [ "${WPA_STATUS}" = "OK" ]; then
eval "${DIALOG} --clear --msgbox 'Network ${NETNUM} disabled' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
else
eval "${DIALOG} --clear --msgbox 'Network ${NETNUM} NOT disabled' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
else
eval "${DIALOG} --clear --msgbox 'No network disabled!!!' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
}
##function
wifi_load_file(){
##local
DEVNAME=$1
eval "${DIALOG} --fselect ${WPA_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
2>${TMPFILE}
if [ $? -eq 0 ]; then
SEL_FILE=$(cat ${TMPFILE})
while [ -d "${SEL_FILE}" ]; do
eval "${DIALOG} --fselect ${SEL_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
2>${TMPFILE}
if [ $? -eq 0 ]; then
SEL_FILE=$(cat ${TMPFILE})
else
eval "${DIALOG} --clear --infobox 'WPA_FILE was not modified' \
${INFO_HEIGHT} ${INFO_WIDTH}"
return
fi
done
if [ -f "${SEL_FILE}" ]; then
WPA_FILE=${SEL_FILE}
eval "${DIALOG} --clear --defaultno --yesno \
'WPA_FILE changed to ${WPA_FILE}\nRestart wpa_supplicant?' \
${INFO_HEIGHT} ${INFO_WIDTH}"
if [ $? -eq 0 ]; then
wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
fi
else
eval "${DIALOG} --clear --infobox 'Invalid file name!\n WPA_FILE *not* changed' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
return
fi
else
eval "${DIALOG} --clear --infobox 'WPA_FILE was not modified' \
${INFO_HEIGHT} ${INFO_WIDTH}"
fi
}
##function
config_wifi(){
##local
DEVNAME=$1
while true; do
eval "${DIALOG} --clear --cancel-label 'Up' \
--menu 'Configuring ${DEVNAME}\n(Current file: ${WPA_FILE})' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 12 \
'Restart' 'Restart wpa_supplicant' \
'Enable' 'Enable a configured network' \
'Disable' 'Disable a configured network' \
'Add' 'Configure a new network' \
'Remove' 'Delete an existing network' \
'Show' 'Show current configuration file' \
'Edit' 'Edit current configuration file' \
'Save' 'Save configuration to file'\
'Load' 'Load configuration from file'\
'New' 'Create new configuration file' " \
2>${TMPFILE}
if [ $? = "1" ]; then
return
fi
ACTION=$(cat ${TMPFILE})
case ${ACTION} in
"Restart")
## Restart wpa_supplicant
wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
;;
"Enable")
wifi_enable ${DEVNAME}
;;
"Disable")
wifi_disable ${DEVNAME}
;;
"Add")
wifi_add ${DEVNAME}
;;
"Remove")
wifi_remove ${DEVNAME}
;;
"Show")
eval "${DIALOG} --title 'Current file: ${WPA_FILE}' \
--textbox ${WPA_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
;;
"Edit")
edit_file ${WPA_FILE}
;;
"Save")
wifi_save_file ${DEVNAME}
;;
"Load")
wifi_load_file ${DEVNAME}
;;
"New")
eval "${DIALOG} --msgbox 'Sorry!Not yet implemented!' \
${INFO_HEIGHT} ${INFO_WIDTH}" 2>${TMPFILE}
;;
esac
done
}
##
## (Re)-Configure a network device
##
##function
configure_device(){
##local
DEVNAME=$1
case ${DEVNAME} in
eth*)
config_ethernet ${DEVNAME}
;;
wlan*)
config_wifi ${DEVNAME}
;;
*)
eval "${DIALOG} --clear --title 'ERROR' --msgbox \
'${DEVNAME}: Unsupported device type' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
;;
esac
}
##function
set_device_up(){
##local
DEVNAME=$1
ip link set ${DEVNAME} up
}
##function
set_device_down(){
##local
DEVNAME=$1
ip link set ${DEVNAME} down
}
##function
show_device_menu(){
##local
DEVNAME=$1
while true; do
eval "${DIALOG} --clear --cancel-label 'Up' --menu 'Device: ${DEVNAME}' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 8 \
'View' 'View current configuration' \
'Conf' 'Configure device' \
'Start' 'Bring interface up' \
'Stop' 'Put interface down' \
'Restart' 'Restart interface'" 2> ${TMPFILE}
if [ $? -eq 1 ]; then
return
fi
DEV_ACTION=$(cat ${TMPFILE})
case ${DEV_ACTION} in
"View")
show_device_conf ${DEVNAME}
;;
"Conf")
configure_device ${DEVNAME}
;;
"Start")
set_device_up ${DEVNAME}
;;
"Stop")
set_device_down ${DEVNAME}
;;
"Restart")
set_device_down ${DEVNAME}
set_device_up ${DEVNAME}
;;
*)
;;
esac
done
}
##
## Show all the available network devices
##
##function
show_devs() {
DEVICES=$(ip link show | awk 'NR % 2 == 1' | cut -d ":" -f 2)
DEVICE_TAGS=""
for i in $DEVICES; do
if [ "$i" != "lo" ]; then
DEVICE_TAGS="${DEVICE_TAGS} $i $i"
fi
done
eval "${DIALOG} --clear --cancel-label 'Up' \
--menu 'Select Interface to configure' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 4 \
${DEVICE_TAGS}" 2> ${TMPFILE}
return $?
}
##function
dev_config_menu(){
while true; do
show_devs
if [ $? -eq 1 ]; then
return
fi
DEVNAME=$(cat ${TMPFILE})
show_device_menu ${DEVNAME}
done
}
##function
show_info(){
cat <<EOF > ${TMPFILE}
== setnet.sh 0.1 ==
setnet.sh is a simple state-less tool to manage and configure network
interfaces. It is a shell wrapper around the functionalities of "ip",
"dhclient", "wpa_cli", and can be used to configure network
connections via Ethernet/Wi-Fi interfaces.
Both Static and DHCP-based IP configuration is supported.
At the moment, only WPA-PSK and open (no key) Wi-Fi connections are
available.
EOF
eval "${DIALOG} --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
return
}
##function
show_copyright(){
cat <<EOF > ${TMPFILE}
== setnet.sh 0.1 ==
(c) KatolaZ (katolaz@freaknet.org) -- 2016
EOF
eval "${DIALOG} --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
return
}
##function
show_license(){
cat <<EOF > ${TMPFILE}
== setnet.sh 0.1 ==
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
----------------------------------------------------------------------
(c) KatolaZ <katolaz@freaknet.org> -- 2016
----------------------------------------------------------------------
EOF
eval "${DIALOG} --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
return
}
##function
about_menu(){
while true; do
eval "${DIALOG} --cancel-label 'Up' --menu 'setnet ${VERSION} -- About' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 6 \
'Info' 'General information' \
'Copyright' 'Copyright information' \
'License' 'How to distribute this program' " \
2> ${TMPFILE}
if [ $? -eq 1 ];then
return;
fi
ACTION=$(cat ${TMPFILE})
case ${ACTION} in
"Info")
show_info
;;
"Copyright")
show_copyright
;;
"License")
show_license
;;
esac
done
}
##function
show_toplevel(){
log "show_toplevel" "TMPFILE: ${TMPFILE}"
eval "${DIALOG} --clear --cancel-label 'Quit' --menu 'Main Menu' \
${WINDOW_HEIGHT} ${WINDOW_WIDTH} 6 \
'Setup' 'Setup interfaces' \
'About' 'Info & Copyright'" 2> ${TMPFILE}
return $?
}
##function
show_help(){
##local
SCRIPTNAME=$1
echo "Usage: ${SCRIPTNAME} [OPTION]"
echo "Options:"
printf "\t -c cfg_file\tLoad configuration from cfg_file.\n"
printf "\t -v\t\tPrint version number and exit.\n"
printf "\t -h\t\tShow this help.\n"
}
##function
show_version(){
##local
SCRIPTNAME=$1
echo "${SCRIPTNAME} -- version ${VERSION}"
echo "Copyright (C) Vincenzo \"KatolaZ\" Nicosia (katolaz@freaknet.org) -- 2016"
echo "This is free software. You can use and redistribute it under the "
echo "terms of the GNU General Public Licence version 3 or (at your option)"
echo "any later version."
echo
echo "YOU USE THIS SOFTWARE AT YOUR OWN RISK."
echo "There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or"
echo "FITNESS FOR A PARTICULAR PURPOSE."
}
##function
show_disclaimer(){
cat <<EOF > ${TMPFILE}
== setnet.sh 0.1 ==
(c) KatolaZ (katolaz@freaknet.org) -- 2016
-+- This is the alpha release of setnet.sh -+-
THIS IS FREE SOFTWARE
YOU CAN USE AND DISTRIBUTE IT UNDER THE
TERMS OF THE GNU GENERAL PUBLIC LICENSE
USE THIS SOFTWARE AT YOUR OWN RISK
There is ABSOLUTELY NO WARRANTY; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
See "About" for more information about
copyright and license
EOF
eval "${DIALOG} --clear --cr-wrap --textbox ${TMPFILE} 23 60"
return
}
##function
initialise(){
echo "TRUNCATE_LOG: ${TRUNCATE_LOG}"
if [ -z ${TRUNCATE_LOG} ] || \
[ ${TRUNCATE_LOG} = "yes" ] || \
[ ${TRUNCATE_LOG} = "YES" ]; then
truncate -s 0 ${LOGFILE}
fi
trap cleanup 0 $SIG_NONE $SIG_HUP $SIG_INT $SIG_TRAP $SIG_TERM
}
##function
main(){
show_disclaimer
log "setnet" "Starting afresh on $(date)"
SETNETRC=$(realpath ${SETNETRC})
log "main" "Using config file \"${SETNETRC}\""
WPA_FILE=$(realpath ${WPA_FILE})
log "main" "Using WPA config file \"${WPA_FILE}\""
LOFGILE=$(realpath ${LOGFILE})
log "main" "Using log file \"${LOGFILE}\""
while true; do
show_toplevel
if [ $? -eq 1 ]; then
cleanup
exit 1
fi
log "main" "${TMPFILE}"
ACTION=$(cat ${TMPFILE})
log "main" "ACTION: ${ACTION}"
case ${ACTION} in
"Setup")
dev_config_menu
;;
"About")
about_menu
;;
esac
done
}
##
## The script starts here
##
##
## Get command-line arguments
##
SETNETRC=""
while getopts ":c:hv" opt; do
case $opt in
c)
echo "Got option -c ${OPTARG}"
SETNETRC=$(realpath ${OPTARG})
echo "SETNETRC: ${SETNETRC}"
;;
h)
show_help $(basename $0)
exit 1
;;
v)
show_version $(basename $0)
exit 1
;;
\?)
echo "Invalid option: -${OPTARG}"
exit 1
;;
:)
echo "Option -${OPTARG} requires an argument"
exit 1
;;
esac
done
##
## Load the configuration file
##
load_setnetrc ${SETNETRC}
##
## Init stuff
##
initialise
##
## Check dependencies. If we are missing someting essential, then exit.
##
check_deps
main
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