summaryrefslogtreecommitdiffstats
path: root/system-boot/components/9990-networking.sh
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-02-02 10:00:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-02-02 10:00:00 +0000
commit32322960234c8ec91e0d42835a3ec5ee63305070 (patch)
tree71d79574de0193778ad6cc6c96dfd4f74fa6bbbb /system-boot/components/9990-networking.sh
parentInitial commit. (diff)
downloadopen-infrastructure-system-tools-32322960234c8ec91e0d42835a3ec5ee63305070.tar.xz
open-infrastructure-system-tools-32322960234c8ec91e0d42835a3ec5ee63305070.zip
Adding upstream version 20190202.upstream/20190202
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'system-boot/components/9990-networking.sh')
-rwxr-xr-xsystem-boot/components/9990-networking.sh179
1 files changed, 179 insertions, 0 deletions
diff --git a/system-boot/components/9990-networking.sh b/system-boot/components/9990-networking.sh
new file mode 100755
index 0000000..9cc3674
--- /dev/null
+++ b/system-boot/components/9990-networking.sh
@@ -0,0 +1,179 @@
+#!/bin/sh
+
+#set -e
+
+Device_from_bootif ()
+{
+ # support for Syslinux IPAPPEND parameter
+ # it sets the BOOTIF variable on the kernel parameter
+
+ if [ -n "${BOOTIF}" ]
+ then
+ # pxelinux sets BOOTIF to a value based on the mac address of the
+ # network card used to PXE boot, so use this value for DEVICE rather
+ # than a hard-coded device name from initramfs.conf. this facilitates
+ # network booting when machines may have multiple network cards.
+ # pxelinux sets BOOTIF to 01-$mac_address
+
+ # strip off the leading "01-", which isn't part of the mac
+ # address
+ temp_mac=${BOOTIF#*-}
+
+ # convert to typical mac address format by replacing "-" with ":"
+ bootif_mac=""
+ IFS='-'
+ for x in $temp_mac
+ do
+ if [ -z "$bootif_mac" ]
+ then
+ bootif_mac="$x"
+ else
+ bootif_mac="$bootif_mac:$x"
+ fi
+ done
+ unset IFS
+
+ # look for devices with matching mac address, and set DEVICE to
+ # appropriate value if match is found.
+
+ for device in /sys/class/net/*
+ do
+ if [ -f "$device/address" ]
+ then
+ current_mac=$(cat "$device/address")
+
+ if [ "$bootif_mac" = "$current_mac" ]
+ then
+ DEVICE=${device##*/}
+ break
+ fi
+ fi
+ done
+ fi
+}
+
+do_netsetup ()
+{
+ modprobe -q af_packet # For DHCP
+
+ udevadm trigger
+ udevadm settle
+
+ [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
+ echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
+
+ if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
+ then
+ # See if we can select the device from BOOTIF
+ Device_from_bootif
+
+ # if ethdevice was not specified on the kernel command line
+ # make sure we try to get a working network configuration
+ # for *every* present network device (except for loopback of course)
+ if [ -z "$ETHDEVICE" ]
+ then
+ echo "If you want to boot from a specific device use bootoption ethdevice=..."
+ for device in /sys/class/net/*
+ do
+ dev=${device##*/}
+ if [ "$dev" != "lo" ]
+ then
+ ETHDEVICE="$ETHDEVICE $dev"
+ fi
+ done
+ fi
+
+ # split args of ethdevice=eth0,eth1 into "eth0 eth1"
+ for device in $(echo "$ETHDEVICE" | sed 's/,/ /g')
+ do
+ devlist="$devlist $device"
+ done
+
+ for dev in $devlist
+ do
+ echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
+ ipconfig -t "$ETHDEV_TIMEOUT" "$dev" | tee -a /netboot.config
+
+ # if configuration of device worked we should have an assigned
+ # IP address, if so let's use the device as $DEVICE for later usage.
+ # simple and primitive approach which seems to work fine
+ if ifconfig "$dev" | grep -q -E 'inet.*addr:|inet [0-9][0-9]*.[0-9][0-9]*.[0-9][0-9]*.[0-9][0-9]*'
+ then
+ export DEVICE="$dev"
+ break
+ fi
+ done
+ else
+ for interface in ${DEVICE}; do
+ ipconfig -t "$ETHDEV_TIMEOUT" "${interface}" | tee "/netboot-${interface}.config"
+
+ [ -e "/run/net-${interface}.conf" ] && . "/run/net-${interface}.conf"
+
+ if [ "$IPV4ADDR" != "0.0.0.0" ]
+ then
+ break
+ fi
+ done
+ fi
+
+ for interface in ${DEVICE}
+ do
+ # source relevant ipconfig output
+ OLDHOSTNAME=${HOSTNAME}
+
+ [ -e "/run/net-${interface}.conf" ] && . "/run/net-${interface}.conf"
+
+ [ -z "${HOSTNAME}" ] && HOSTNAME="${OLDHOSTNAME}"
+ export HOSTNAME
+
+ if [ -n "${interface}" ]
+ then
+ HWADDR="$(cat "/sys/class/net/${interface}/address")"
+ fi
+
+ # Only create /etc/hosts if FQDN is known (to let 'hostname -f' query
+ # this file). Otherwise DNS will be queried to determine the FQDN.
+ if [ ! -e "/etc/hosts" ] && [ -n "${DNSDOMAIN}" ]
+ then
+ echo "Creating /etc/hosts"
+ cat > /etc/hosts <<EOF
+127.0.0.1 localhost
+127.0.1.1 ${HOSTNAME}.${DNSDOMAIN} ${HOSTNAME}
+
+# The following lines are desirable for IPv6 capable hosts
+::1 localhost ip6-localhost ip6-loopback
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+EOF
+ fi
+
+ if [ ! -e "/etc/resolv.conf" ]
+ then
+ echo "Creating /etc/resolv.conf"
+
+ if [ -n "${DNSDOMAIN}" ]
+ then
+ echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
+ echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
+ fi
+
+ for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1} ${DNSSERVERS}
+ do
+ if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
+ then
+ echo "nameserver $i" >> /etc/resolv.conf
+ fi
+ done
+ fi
+
+ # Check if we have a network device at all
+ if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \
+ ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
+ ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
+ ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
+ ! ls /sys/class/net/ra0 > /dev/null 2>&1
+ then
+ panic "No supported network device found, maybe a non-mainline driver is required."
+ fi
+ done
+}