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|
#!/bin/bash
set -e
# Configure networking for all wired and wireless devices.
#
# Creates network-manager connections.
function get-interfaces {
# XXX: Sorting of interfaces is non-numeric
WIRED_IFACES=$(nmcli --terse --fields type,device device | grep "^ethernet:" | cut -d: -f2 | sort)
NO_OF_WIRED_IFACES=$(echo $WIRED_IFACES | wc -w)
WIRELESS_IFACES=$(nmcli --terse --fields type,device device | grep "^wifi:" | cut -d: -f2 | sort)
NO_OF_WIRELESS_IFACES=$(echo $WIRELESS_IFACES | wc -w)
}
function configure-regular-interface {
local interface="$1"
local zone="$2"
local connection_name="FreedomBox WAN"
# Create n-m connection for a regular interface
nmcli con add con-name "$connection_name" ifname "$interface" type ethernet
nmcli con modify "$connection_name" connection.autoconnect TRUE
nmcli con modify "$connection_name" connection.zone "$zone"
echo "Configured interface '$interface' for '$zone' use as '$connection_name'."
}
function configure-shared-interface {
local interface="$1"
local connection_name="FreedomBox LAN $interface"
# Create n-m connection for eth1
nmcli con add con-name "$connection_name" ifname "$interface" type ethernet
nmcli con modify "$connection_name" connection.autoconnect TRUE
nmcli con modify "$connection_name" connection.zone internal
# Configure this interface to be shared with other computers.
# - Self-assign an address and network
# - Start and manage DNS server (dnsmasq)
# - Start and manage DHCP server (dnsmasq)
# - Register address with mDNS
# - Add firewall rules for NATing from this interface
nmcli con modify "$connection_name" ipv4.method shared
echo "Configured interface '$interface' for shared use as '$connection_name'."
}
function configure-wireless-interface {
local interface="$1"
local connection_name="FreedomBox $interface"
local ssid="FreedomBox$interface"
local secret="freedombox123"
nmcli con add con-name "$connection_name" ifname "$interface" type wifi ssid "$ssid"
nmcli con modify "$connection_name" connection.autoconnect TRUE
nmcli con modify "$connection_name" connection.zone internal
nmcli con modify "$connection_name" ipv4.method shared
nmcli con modify "$connection_name" wifi.mode ap
nmcli con modify "$connection_name" wifi-sec.key-mgmt wpa-psk
nmcli con modify "$connection_name" wifi-sec.psk "$secret"
echo "Configured interface '$interface' for shared use as '$connection_name'."
}
function multi-wired-setup {
local first_interface="$1"
shift
local remaining_interfaces="$@"
configure-regular-interface "$first_interface" external
for interface in $remaining_interfaces
do
configure-shared-interface "$interface"
done
}
function one-wired-setup {
local interface="$1"
case $NO_OF_WIRELESS_IFACES in
"0")
configure-regular-interface "$interface" internal
;;
*)
configure-regular-interface "$interface" external
;;
esac
}
function wireless-setup {
local interfaces="$@"
for interface in $interfaces
do
configure-wireless-interface "$interface"
done
}
echo "Setting up network configuration..."
get-interfaces
case $NO_OF_WIRED_IFACES in
"0")
echo "No wired interfaces detected."
;;
"1")
one-wired-setup $WIRED_IFACES
;;
*)
multi-wired-setup $WIRED_IFACES
esac
wireless-setup $WIRELESS_IFACES
echo "Done setting up network configuration."
|
