diff options
Diffstat (limited to 'builder/dnbd3-qcow2-rootfs/debugging_tools/setup-network.sh')
-rw-r--r-- | builder/dnbd3-qcow2-rootfs/debugging_tools/setup-network.sh | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/builder/dnbd3-qcow2-rootfs/debugging_tools/setup-network.sh b/builder/dnbd3-qcow2-rootfs/debugging_tools/setup-network.sh new file mode 100644 index 00000000..3b32a68c --- /dev/null +++ b/builder/dnbd3-qcow2-rootfs/debugging_tools/setup-network.sh @@ -0,0 +1,84 @@ +#!/bin/bash + +echo "Setting up network..." + +echo "Main MAC address is '$MAC'" + +# setup network +source /inc/network.functions + +# set up loopback networking +echo "Setting up loopback" +ip link set dev lo up 2>/dev/null +ip addr add 127.0.0.1/8 dev lo 2>/dev/null + +echo "Setting up bridge" +BRIDGE="br0" + +# Following was supposed to prevent scripts from getting confused by multiple interfaces with same MAC - does not work though +## Flip mac address of original interface - this var is not local so init sees the changes too +#MAC="$(echo "$MAC" | awk -F ':' '{printf $1 ":" $2 ":" $5 ":" $3 ":" $6 ":" $4}')" +#ip link set addr "$MAC" "$SLAVE" + +mkdir -p "${FUTURE_ROOT}/etc/udev/rules.d" + +#IP_OUT=$(ip a | sed -r ':a;N;$!ba;s/: ([a-z0-9]+): /####\1####/g;s/ether ([a-f0-9:]+) /####\1####/g'| grep -E -o '####[^ ]+####' | sed 's/#//g' | grep -B 1 ':') +IP_OUT=$(ip a | grep -B 1 "/ether" | sed -r '/^--$/d;$!N;s#^[0-9]+: ([a-z0-9\.:]+): .*?/ether ([0-9a-fA-Z:]+) .*$#\1==\2#') + +if ! echo "$IP_OUT" | grep -q -- "$MAC"; then + drop_shell "Boot interface not found in interface list. NIC driver missing?" +fi + +for LINE in $IP_OUT; do + IFACE=$(echo "$LINE" | awk -F '==' '{printf $1}') + IFMAC=$(echo "$LINE" | awk -F '==' '{printf $2}' | tr '[A-Z]' '[a-z]') # udev requires mac addesses to be lowercase (a-f), see http://www.debianhelp.co.uk/udev.htm + echo "${IFACE} = ${IFMAC}" + + if [ "x$IFMAC" == "x$MAC" ]; then + brctl addbr "$BRIDGE" || drop_shell "Could not create bridge $BRIDGE" + brctl stp "$BRIDGE" 0 + brctl setfd "$BRIDGE" 0.000000000001 + ip link set addr "$IFMAC" "$BRIDGE" || drop_shell "Could not set mac of $BRIDGE" + ip link set dev "$IFACE" up + wait_for_iface "$IFACE" + brctl addif "$BRIDGE" "$IFACE" || drop_shell "Could not add $IFACE to $BRIDGE" + + # save our variables for retry on fail + echo "IFACE=$IFACE" > /run/network.conf + + # analyze ip information from the kernel command line and put parts + # of it into several variables + if [ -n "$CLIENTIP" ] ; then + # set static ip address + ip addr add "$CLIENTIP/$(ipcalc -s -p "$CLIENTIP" "$SUBNET_MASK" | sed "s/.*=//")" broadcast "$BROADCAST_ADDRESS" dev "$BRIDGE" + ip link set dev "$BRIDGE" up + [ -n "$GATEWAY" ] && ip route add default via "$GATEWAY" dev "$BRIDGE" + else + NOIPYET="yes" + fi + # Ignore this device later on when systemd handles network interfaces (see hacked 99-systemd.rules in systemd data dir) + echo "SUBSYSTEM==\"net\", ACTION==\"add\", KERNEL==\"eth*\", ATTR{address}==\"$IFMAC\", TAG+=\"openslxignore\"" >> "${FUTURE_ROOT}/etc/udev/rules.d/01-ignore-boot-interface.rules" + fi + # youdev + echo "SUBSYSTEM==\"net\", ACTION==\"add\", DRIVERS==\"?*\", ATTR{address}==\"$IFMAC\", ATTR{dev_id}==\"0x0\", ATTR{type}==\"1\", KERNEL==\"eth*\", NAME=\"$IFACE\"" >> "${FUTURE_ROOT}/etc/udev/rules.d/70-net-boot-nic-name.rules" + # continue... + IFACE="" +done + +wait_for_iface "$BRIDGE" + +# udhcpc +PARAM= +if [ -n "$CLIENTIP" ]; then + PARAM="-r $CLIENTIP" +fi +echo -n "$CLIENTIP" > "/run/firstip" +echo -n "$GATEWAY" > "/run/firstgw" + +# save our variables for retry on fail ff. +echo "CLIENTIP=$CLIENTIP" >> /run/network.conf +echo "GATEWAY=$GATEWAY" >> /run/network.conf +echo "BRIDGE=$BRIDGE" >> /run/network.conf + +udhcpc $PARAM -O domain -O nissrv -O nisdomain -O wpad -O search -t 5 -T 2 -s "/inc/udhcpc-trigger" -f -n -q -i "$BRIDGE" +# udhcpc return value will be return value of this script |