#!/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}\" " 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 ${TMPFILE} 23 60" return } ##function initialise(){ TMPFILE=$( (tempfile) 2>/dev/null) || TMPFILE=/tmp/setnet_$$ WPA_PIDFILE=$( (tempfile) 2>/dev/null) || WPA_PIDFILE=/tmp/setnet_wpapid_$$ trap cleanup 0 NONE HUP INT TRAP TERM if [ -z ${TRUNCATE_LOG} ] || \ [ ${TRUNCATE_LOG} = "yes" ] || \ [ ${TRUNCATE_LOG} = "YES" ]; then truncate -s 0 ${LOGFILE} fi } ##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 ## ## This is the main loop ## main