Reorganizing components in source tree.

[live-boot-grml.git] / components / 9990-netbase.sh

diff --git a/components/9990-netbase.sh b/components/9990-netbase.sh
new file mode 100755 (executable)
index 0000000..b3f886c
--- /dev/null
+++ b/components/9990-netbase.sh
@@ -0,0 +1,139 @@
+#!/bin/sh
+
+#set -e
+
+Netbase ()
+{
+       if [ -n "${NONETWORKING}" ]
+       then
+               return
+       fi
+
+       # FIXME: stop hardcoding overloading of initramfs-tools functions
+       . /scripts/functions
+       . /lib/live/boot/9990-initramfs-tools.sh
+
+       log_begin_msg "Preconfiguring networking"
+
+       IFFILE="/root/etc/network/interfaces"
+       DNSFILE="/root/etc/resolv.conf"
+
+       if [ "${STATICIP}" = "frommedia" ] && [ -e "${IFFILE}" ]
+       then
+               # will use existent /etc/network/interfaces
+               log_end_msg
+               return
+       fi
+
+cat > "${IFFILE}" << EOF
+auto lo
+iface lo inet loopback
+
+EOF
+
+       udevadm trigger
+       udevadm settle
+
+       if [ -z "${NETBOOT}" ] && [ -n "${STATICIP}" ] && [ "${STATICIP}" != "frommedia" ]
+       then
+               parsed=$(echo "${STATICIP}" | sed -e 's|,| |g')
+
+               for ifline in ${parsed}
+               do
+                       ifname="$(echo ${ifline} | cut -f1 -d ':')"
+                       ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
+                       ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"
+                       ifgateway="$(echo ${ifline} | cut -f4 -d ':')"
+                       nameserver="$(echo ${ifline} | cut -f5 -d ':')"
+
+cat >> "${IFFILE}" << EOF
+allow-hotplug ${ifname}
+iface ${ifname} inet static
+    address ${ifaddress}
+    netmask ${ifnetmask}
+EOF
+
+                       if [ -n "${ifgateway}" ]
+                       then
+
+cat >> "${IFFILE}" << EOF
+    gateway ${ifgateway}
+
+EOF
+
+                       fi
+
+                       if [ -n "${nameserver}" ]
+                       then
+                               if [ -e "${DNSFILE}" ]
+                               then
+                                       grep -v ^nameserver "${DNSFILE}" > "${DNSFILE}.tmp"
+                                       mv "${DNSFILE}.tmp" "${DNSFILE}"
+                               fi
+
+                               echo "nameserver ${nameserver}" >> "${DNSFILE}"
+                       fi
+               done
+       else
+               if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]
+               then
+                       # default, dhcp assigned
+                       method="dhcp"
+               else
+                       # make sure that the preconfigured interface would not get reassigned by dhcp
+                       # on startup by ifup script - otherwise our root fs might be disconnected!
+                       method="manual"
+               fi
+
+               # iterate the physical interfaces and add them to the interfaces list and also add when ethdevice= called on cmdline
+               if [ "${method}" != dhcp ] || ([ ! -x /root/usr/sbin/NetworkManager ] && [ ! -x /root/usr/sbin/wicd ]) || [ ! -z "${ETHDEVICE}" ]
+               then
+                       for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
+                       do
+                               [ -e ${interface} ] || continue
+                               i="$(basename ${interface})"
+
+cat >> "${IFFILE}" << EOF
+allow-hotplug ${i}
+iface ${i} inet ${method}
+
+EOF
+
+                       done
+               fi
+
+               if [ ! -f /root/etc/resolv.conf ] || [ -z "$(cat /root/etc/resolv.conf)" ]
+               then
+                       if [ -f /netboot.config ]
+                       then
+                               # create a resolv.conf if it is not present or empty
+                               cp /netboot.config /root/var/log/netboot.config
+
+                               rc_search=$(cat netboot.config | awk '/domain/{print $3}')
+                               rc_server0=$(cat netboot.config | awk '/dns0/{print $5}')
+                               rc_server1=$(cat netboot.config | awk '/dns0/{print $8}')
+                               rc_server0="nameserver ${rc_server0}"
+
+                               if [ "${rc_server1}" = "0.0.0.0" ]
+                               then
+                                       rc_server1=""
+                               else
+                                       rc_server1="nameserver ${rc_server1}"
+                               fi
+
+cat > /root/etc/resolv.conf << EOF
+# /etc/resolv.conf
+# Autogenerated by live-boot
+search ${rc_search}
+domain ${rc_search}
+${rc_server0}
+${rc_server1}
+EOF
+
+                               cat /root/etc/resolv.conf >> /root/var/log/netboot.config
+                       fi
+               fi
+       fi
+
+       log_end_msg
+}