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#!/bin/bash
get_ifbus() {
local iface=$1
# Example: ../../../bus/pci (wanted: pci)
# Example: ../../../../bus/pci (wanted: pci)
# Example: ../../../../../../bus/usb (wanted: usb)
local if_bus=$(readlink /sys/class/net/${iface}/device/bus)
basename ${if_bus}
}
get_ifproduct() {
local iface=$1
local bus=$(get_ifbus ${iface})
local if_pciaddr
local if_devname
local if_usbpath
local if_usbmanufacturer
local if_usbproduct
if [[ ${bus} == "pci" ]]
then
# Example: ../../../devices/pci0000:00/0000:00:0a.0 (wanted: 0000:00:0a.0)
# Example: ../../../devices/pci0000:00/0000:00:09.0/0000:01:07.0 (wanted: 0000:01:07.0)
if_pciaddr=$(readlink /sys/class/net/${iface}/device)
if_pciaddr=$(basename ${if_pciaddr})
# Example: 00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
# (wanted: nVidia Corporation CK804 Ethernet Controller)
if_devname=$(lspci -s ${if_pciaddr})
if_devname=${if_devname#*: }
if_devname=${if_devname%(rev *)}
fi
if [[ ${bus} == "usb" ]]
then
if_usbpath=$(readlink /sys/class/net/${iface}/device)
if_usbpath=/sys/class/net/${iface}/$(dirname ${if_usbpath})
if_usbmanufacturer=$(< ${if_usbpath}/manufacturer)
if_usbproduct=$(< ${if_usbpath}/product)
[[ -n ${if_usbmanufacturer} ]] && if_devname="${if_usbmanufacturer} "
[[ -n ${if_usbproduct} ]] && if_devname="${if_devname}${if_usbproduct}"
fi
if [[ ${bus} == "ieee1394" ]]
then
if_devname="IEEE1394 (FireWire) Network Adapter";
fi
echo ${if_devname}
}
get_ifdriver() {
local iface=$1
# Example: ../../../bus/pci/drivers/forcedeth (wanted: forcedeth)
local if_driver=$(readlink /sys/class/net/${iface}/device/driver)
basename ${if_driver}
}
get_ifmac() {
local iface=$1
# Example: 00:01:6f:e1:7a:06
cat /sys/class/net/${iface}/address
}
get_ifdesc() {
local iface=$1
desc=$(get_ifproduct ${iface})
if [[ -n ${desc} ]]
then
echo $desc
return;
fi
desc=$(get_ifdriver ${iface})
if [[ -n ${desc} ]]
then
echo $desc
return;
fi
desc=$(get_ifmac ${iface})
if [[ -n ${desc} ]]
then
echo $desc
return;
fi
echo "Unknown"
}
show_ifmenu() {
local old_ifs="${IFS}"
local opts
IFS="
"
for ifname in $(ifconfig -a | grep "^[^ ]"); do
ifname="${ifname%% *}"
[[ ${ifname} == "lo" ]] && continue
opts="${opts} ${ifname} '$(get_ifdesc ${ifname})'"
done
IFS="${old_ifs}"
if ! eval dialog --visit-items \
--menu "Please select the interface that you wish to configure from the list below:" 0 0 0 $opts 2>iface
then
exit
fi
iface=$(< iface)
}
show_ifconfirm() {
local iface=$1
local if_mac=$(get_ifmac ${iface})
local if_driver=$(get_ifdriver ${iface})
local if_bus=$(get_ifbus ${iface})
local if_product=$(get_ifproduct ${iface})
local text="Details for network interface ${iface} are shown below.\n\nInterface name: ${iface}\n"
[[ -n ${if_product} ]] && text="${text}Device: ${if_product}\n"
[[ -n ${if_mac} ]] && text="${text}MAC address: ${if_mac}\n"
[[ -n ${if_driver} ]] && text="${text}Driver: ${if_driver}\n"
[[ -n ${if_bus} ]] && text="${text}Bus type: ${if_bus}\n"
text="${text}\nIs this the interface that you wish to configure?"
if ! dialog --visit-items --title "Interface details" --yesno \
"${text}" 15 70
then
result="no"
else
result="yes"
fi
}
config_wireless() {
cd /tmp/setup.opts
dialog --visit-items --title "SSID" \
--inputbox "Please enter your SSID, or leave blank for selecting the nearest open network" \
20 50 2> ${iface}.SSID
SSID=$(tail -n 1 ${iface}.SSID)
if [ -n "${SSID}" ]
then
dialog --visit-items --title "WEP (Part 1)" \
--menu "Does your network use encryption?" \
20 60 7 1 "Yes" 2 "No" 2> ${iface}.WEP
WEP=$(tail -n 1 ${iface}.WEP)
case ${WEP} in
1)
dialog --visit-items --title "WEP (Part 2)" \
--menu "Are you entering your WEP key in HEX or ASCII?" \
20 60 7 1 "HEX" 2 "ASCII" 2> ${iface}.WEPTYPE
WEP_TYPE=$(tail -n 1 ${iface}.WEPTYPE)
case ${WEP_TYPE} in
1)
dialog --visit-items --title "WEP (Part 3)" \
--inputbox "Please enter your WEP key in the form of XXXX-XXXX-XX for 64-bit or XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX for 128-bit" \
20 50 2> ${iface}.WEPKEY
WEP_KEY=$(tail -n 1 ${iface}.WEPKEY)
if [ -n "${WEP_KEY}" ]
then
iwconfig ${iface} essid "${SSID}"
iwconfig ${iface} key "${WEP_KEY}"
fi
;;
2)
dialog --visit-items --title "WEP (Part 3)" \
--inputbox "Please enter your WEP key in ASCII form. This should be 5 or 13 characters for either 64-bit or 128-bit encryption, respectively" \
20 50 2> ${iface}.WEPKEY
WEP_KEY=$(tail -n 1 ${iface}.WEPKEY)
if [ -n "${WEP_KEY}" ]
then
iwconfig ${iface} essid "${SSID}"
iwconfig ${iface} key "s:${WEP_KEY}"
fi
;;
esac
;;
2)
iwconfig ${iface} essid "${SSID}"
iwconfig ${iface} key off
;;
esac
fi
}
config_ip() {
cd /tmp/setup.opts
dialog --visit-items --title "TCP/IP setup" \
--menu "You can use DHCP to automatically configure a network interface or you can specify an IP and related settings manually. Choose one option:" \
20 60 7 1 "Use DHCP to auto-detect my network settings" \
2 "Specify an IP address manually" 2> ${iface}.DHCP
DHCP=$(tail -n 1 ${iface}.DHCP)
case ${DHCP} in
1)
/sbin/dhcpcd -n -t 10 -h $(hostname) ${iface} &
;;
2)
dialog --visit-items --title "TCP/IP setup" \
--menu "Do you want to use ifconfig (192.168.0.1 255.255.255.0) or iproute2 (192.168.0.1/24) syntax?. Choose one option:" \
20 60 7 1 "Use ifconfig to configure the network" \
2 "Use iproute2 to configure the network" 2> ${iface}.SYNTAX
SYNTAX=$(tail -n 1 ${iface}.SYNTAX)
case ${SYNTAX} in
1)
dialog --visit-items --title "IP address" \
--inputbox "Please enter an IP address for ${iface}:" \
20 50 "192.168.1.1" 2> ${iface}.IP
IP=$(tail -n 1 ${iface}.IP)
BC_TEMP=$(echo $IP|cut -d . -f 1).$(echo $IP|cut -d . -f 2).$(echo $IP|cut -d . -f 3).255
dialog --visit-items --title "Broadcast address" \
--inputbox "Please enter a Broadcast address for ${iface}:" \
20 50 "${BC_TEMP}" 2> ${iface}.BC
BROADCAST=$(tail -n 1 ${iface}.BC)
dialog --visit-items --title "Network mask" \
--inputbox "Please enter a Network Mask for ${iface}:" \
20 50 "255.255.255.0" 2> ${iface}.NM
NETMASK=$(tail -n 1 ${iface}.NM)
dialog --visit-items --title "Gateway" \
--inputbox "Please enter a Gateway for ${iface} (hit enter for none:)" \
20 50 2> ${iface}.GW
GATEWAY=$(tail -n 1 ${iface}.GW)
ifconfig ${iface} ${IP} broadcast ${BROADCAST} netmask ${NETMASK}
if [ -n "${GATEWAY}" ]
then
route add default gw ${GATEWAY} dev ${iface} netmask 0.0.0.0 metric 1
fi
;;
2)
dialog --visit-items --title "IP address" \
--inputbox "Please enter an IP address for ${iface}:" \
20 50 "192.168.1.1/24" 2> ${iface}.IP
IP=$(tail -n 1 ${iface}.IP)
dialog --visit-items --title "Gateway" \
--inputbox "Please enter a Gateway for ${iface} (hit enter for none:)" \
20 50 2> ${iface}.GW
GATEWAY=$(tail -n 1 ${iface}.GW)
ip addr add ${IP} dev ${iface}
if [ -n "${GATEWAY}" ]
then
ip route add default via ${GATEWAY}
fi
esac
dialog --visit-items --title "DNS server"\
--inputbox "Please enter a name server to use (hit enter for none:)" \
20 50 2> ${iface}.DNS
DNS=$(tail -n 1 ${iface}.DNS)
if [ -n "${DNS}" ]
then
dialog --visit-items --title "DNS Search Suffix" \
--inputbox "Please enter any domains which you would like to search on DNS queries (hit enter for none:)" \
20 50 2> ${iface}.SUFFIX
SUFFIX=$(tail -n 1 ${iface}.SUFFIX)
echo "nameserver ${DNS}" > /etc/resolv.conf
if [ -n "${SUFFIX}" ]
then
echo "search ${SUFFIX}" >> /etc/resolv.conf
fi
fi
;;
esac
}
write_wireless_conf() {
cd /tmp/setup.opts
SSID=$(tail -n 1 ${iface}.SSID)
if [ -n "${SSID}" ]
then
echo "" >> /etc/conf.d/net
echo "# This wireless configuration file was built by net-setup" > /etc/conf.d/net
WEP=$(tail -n 1 ${iface}.WEPTYPE)
case ${WEP} in
1)
WEP_TYPE=$(tail -n 1 ${iface}.WEPTYPE)
if [ -n "${WEP_TYPE}" ]
then
WEP_KEY=$(tail -n 1 ${iface}.WEPKEY)
if [ -n "${WEP_KEY}" ]
then
SSID_TRANS=$(echo ${SSID//[![:word:]]/_})
case ${WEP_TYPE} in
1)
echo "key_${SSID_TRANS}=\"${WEP_KEY} enc open\"" >> /etc/conf.d/net
;;
2)
echo "key_${SSID_TRANS}=\"s:${WEP_KEY} enc open\"" >> /etc/conf.d/net
;;
esac
fi
fi
;;
2)
:
;;
esac
echo "preferred_aps=\"${SSID}\"" >> /etc/conf.d/net
echo "associate_order=\"forcepreferredonly\"" >> /etc/conf.d/net
fi
}
write_net_conf() {
cd /tmp/setup.opts
echo "" > /etc/conf.d/net
echo "# This network configuration was written by net-setup" > /etc/conf.d/net
DHCP=$(tail -n 1 ${iface}.DHCP)
case ${DHCP} in
1)
echo "config_${iface}=\"dhcp\"" >> /etc/conf.d/net
;;
2)
IP=$(tail -n 1 ${iface}.IP)
BROADCAST=$(tail -n 1 ${iface}.BC)
NETMASK=$(tail -n 1 ${iface}.NM)
GATEWAY=$(tail -n 1 ${iface}.GW)
if [ -n "${IP}" -a -n "${BROADCAST}" -a -n "${NETMASK}" ]
then
echo "config_${iface}=\"${IP} broadcast ${BROADCAST} netmask ${NETMASK}\"" >> /etc/conf.d/net
if [ -n "${GATEWAY}" ]
then
echo "routes_${iface}=\"default via ${GATEWAY}\"" >> /etc/conf.d/net
fi
fi
;;
esac
}
if [ ! -x $(which dialog) ]
then
echo "ERROR: The dialog utility is required for net-setup. Exiting!"
exit 1
fi
if [ "$(whoami)" != "root" ]
then
echo "ERROR: must be root to continue"
exit 1
fi
if [ -z "${1}" ]
then
show_ifmenu
echo $iface
else
iface="${1}"
fi
[ ! -d /tmp/setup.opts ] && mkdir -p /tmp/setup.opts
cd /tmp/setup.opts
while true; do
show_ifconfirm $iface
[[ $result == "yes" ]] && break
show_ifmenu
done
dialog --visit-items --title "Network setup" \
--menu "This script is designed to setup both wired and wireless network settings. All questions below apply to the ${iface} interface only. Choose one option:" \
20 60 7 1 "My network is wireless" 2 "My network is wired" 2> ${iface}.WIRED_WIRELESS
WIRED_WIRELESS=$(tail -n 1 ${iface}.WIRED_WIRELESS)
case ${WIRED_WIRELESS} in
1)
config_wireless
config_ip
write_wireless_conf
;;
2)
config_ip
;;
esac
write_net_conf
echo "Type \"ifconfig\" to make sure the interface was configured correctly."
# vim: ts=4
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