core-agent-linux/network/setup-ip
2019-06-18 18:49:42 +02:00

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#!/bin/bash
# Source Qubes library.
# shellcheck disable=SC1091
. /usr/lib/qubes/init/functions
configure_network() {
local IFS=','
read -r -a args <<< "$@"
local MAC="${args[0]}"
local INTERFACE="${args[1]}"
local ip="${args[2]}"
local ip6="${args[3]}"
local netmask="${args[4]}"
local netmask6="${args[5]}"
local gateway="${args[6]}"
local gateway6="${args[7]}"
local primary_dns="${args[8]}"
local secondary_dns="${args[9]}"
/sbin/ifconfig "$INTERFACE" "$ip" netmask "$netmask"
if [ -n "$ip6" ]; then
/sbin/ifconfig "$INTERFACE" add "$ip6/$netmask6"
fi
/sbin/ifconfig "$INTERFACE" up
if [ -n "$gateway" ]; then
/sbin/route add -host "$gateway" dev "$INTERFACE"
if [ -n "$gateway6" ] && ! echo "$gateway6" | grep -q "^fe80:"; then
/sbin/route -6 add "$gateway6/$netmask6" dev "$INTERFACE"
fi
if ! qsvc disable-default-route ; then
/sbin/route add default gw "$gateway"
if [ -n "$gateway6" ]; then
/sbin/route -6 add default gw "$gateway6" dev "$INTERFACE"
fi
fi
fi
if [ -z "$primary_dns" ] && [ -n "$gateway" ]; then
primary_dns="$gateway"
fi
if ! is_protected_file /etc/resolv.conf ; then
echo > /etc/resolv.conf
if ! qsvc disable-dns-server ; then
echo "nameserver $primary_dns" > /etc/resolv.conf
echo "nameserver $secondary_dns" >> /etc/resolv.conf
fi
fi
}
configure_network_nm() {
local IFS=','
read -r -a args <<< "$@"
local MAC="${args[0]}"
local INTERFACE="${args[1]}"
local ip="${args[2]}"
local ip6="${args[3]}"
local netmask="${args[4]}"
local netmask6="${args[5]}"
local gateway="${args[6]}"
local gateway6="${args[7]}"
local primary_dns="${args[8]}"
local secondary_dns="${args[9]}"
local prefix
local prefix6
local nm_config
local ip4_nm_config
local ip6_nm_config
local uuid
prefix="$(get_prefix_from_subnet "$netmask")"
prefix6="$netmask6"
uuid="de85f79b-8c3d-405f-a652-${MAC//:/}"
nm_config="/etc/NetworkManager/system-connections/qubes-uplink-$INTERFACE"
cat > "$nm_config" <<__EOF__
[802-3-ethernet]
duplex=full
[ethernet]
mac-address=$MAC
[connection]
id=VM uplink $INTERFACE
uuid=$uuid
type=802-3-ethernet
__EOF__
ip4_nm_config=""
ip6_nm_config=""
if ! qsvc disable-dns-server ; then
ip4_nm_config="${ip4_nm_config}
dns=${primary_dns};${secondary_dns}"
fi
if ! qsvc disable-default-route ; then
ip4_nm_config="${ip4_nm_config}
addresses1=$ip;$prefix;$gateway"
if [ -n "$ip6" ]; then
ip6_nm_config="${ip6_nm_config}
addresses1=$ip6;$prefix6;$gateway6"
fi
else
ip4_nm_config="${ip4_nm_config}
addresses1=$ip;$prefix"
if [ -n "$ip6" ]; then
ip6_nm_config="${ip6_nm_config}
addresses1=$ip6;$prefix6"
fi
fi
if [ -n "$ip4_nm_config" ]; then
cat >> "$nm_config" <<__EOF__
[ipv4]
method=manual
may-fail=false
$ip4_nm_config
__EOF__
else
cat >> "$nm_config" <<__EOF__
[ipv4]
method=ignore
__EOF__
fi
if [ -n "$ip6_nm_config" ]; then
cat >> "$nm_config" <<__EOF__
[ipv6]
method=manual
may-fail=false
$ip6_nm_config
__EOF__
else
cat >> "$nm_config" <<__EOF__
[ipv6]
method=ignore
__EOF__
fi
chmod 600 "$nm_config"
# reload connection
nmcli connection load "$nm_config" || :
}
configure_qubes_ns() {
gateway=$(qubesdb-read /qubes-netvm-gateway)
#netmask=$(qubesdb-read /qubes-netvm-netmask)
primary_dns=$(qubesdb-read /qubes-netvm-primary-dns 2>/dev/null || echo "$gateway")
secondary_dns=$(qubesdb-read /qubes-netvm-secondary-dns)
echo "NS1=$primary_dns" > /var/run/qubes/qubes-ns
echo "NS2=$secondary_dns" >> /var/run/qubes/qubes-ns
/usr/lib/qubes/qubes-setup-dnat-to-ns
}
qubes_ip_change_hook() {
if [ -x /rw/config/qubes-ip-change-hook ]; then
/rw/config/qubes-ip-change-hook
fi
# XXX: Backward compatibility
if [ -x /rw/config/qubes_ip_change_hook ]; then
/rw/config/qubes_ip_change_hook
fi
}
have_qubesdb || exit 0
if [ -n "$INTERFACE" ]; then
if [ "$ACTION" == "add" ]; then
MAC="$(get_mac_from_iface "$INTERFACE")"
if [ -n "$MAC" ]; then
ip="$(/usr/bin/qubesdb-read "/net-config/$MAC/ip" 2> /dev/null)"
ip6="$(/usr/bin/qubesdb-read "/net-config/$MAC/ip6" 2> /dev/null)"
netmask="$(/usr/bin/qubesdb-read "/net-config/$MAC/netmask" 2> /dev/null)"
netmask6="$(/usr/bin/qubesdb-read "/net-config/$MAC/netmask6" 2> /dev/null)"
gateway="$(/usr/bin/qubesdb-read "/net-config/$MAC/gateway" 2> /dev/null)"
gateway6="$(/usr/bin/qubesdb-read "/net-config/$MAC/gateway6" 2> /dev/null)"
# Handle legacy values
LEGACY_MAC="$(/usr/bin/qubesdb-read /qubes-mac 2> /dev/null)"
if [ "$MAC" == "$LEGACY_MAC" ]; then
if [ "x$ip" == "x" ]; then
ip="$(/usr/bin/qubesdb-read /qubes-ip 2> /dev/null)"
fi
if [ "$ip6" == "x" ]; then
ip6="$(/usr/bin/qubesdb-read /qubes-ip6 2> /dev/null)"
fi
if [ "$gateway" == "x" ]; then
gateway="$(/usr/bin/qubesdb-read /qubes-gateway)"
fi
if [ "x$gateway6" == "x" ]; then
gateway6="$(/usr/bin/qubesdb-read /qubes-gateway6)"
fi
fi
if [ "x$netmask" == "x" ]; then
netmask="255.255.255.255"
fi
if [ "x$netmask6" == "x" ]; then
netmask6="128"
fi
primary_dns=$(/usr/bin/qubesdb-read /qubes-primary-dns 2>/dev/null)
secondary_dns=$(/usr/bin/qubesdb-read /qubes-secondary-dns 2>/dev/null)
if [ -n "$ip" ]; then
/sbin/ethtool -K "$INTERFACE" sg off
/sbin/ethtool -K "$INTERFACE" tx off
# If NetworkManager is enabled, let it configure the network
if qsvc network-manager ; then
configure_network_nm "$MAC","$INTERFACE","$ip","$ip6","$netmask","$netmask6","$gateway","$gateway6","$primary_dns","$secondary_dns"
else
configure_network "$MAC","$INTERFACE","$ip","$ip6","$netmask","$netmask6","$gateway","$gateway6","$primary_dns","$secondary_dns"
fi
network=$(qubesdb-read /qubes-netvm-network 2>/dev/null)
if [ "x$network" != "x" ]; then
if ! qsvc disable-dns-server; then
configure_qubes_ns
fi
qubes_ip_change_hook
fi
fi
fi
elif [ "$ACTION" == "remove" ]; then
# If exists, we delete NetworkManager configuration file to prevent duplicate entries
nm_config="/etc/NetworkManager/system-connections/qubes-uplink-$INTERFACE"
rm -rf "$nm_config"
fi
fi