From b081d2a92eca9b7180eea0d357b867999b76de76 Mon Sep 17 00:00:00 2001
From: Dirk von Suchodoletz
Date: Thu, 31 May 2007 22:29:30 +0000
Subject: Stuff for WLAN boot (all testing).

git-svn-id: http://svn.openslx.org/svn/openslx/trunk@1125 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 initramfs/initrd-stuff/etc/functions | 23 +++++++++++++++++++----
 initramfs/initrd-stuff/etc/messages  |  3 +++
 initramfs/initrd-stuff/init          | 29 ++++++++++++++++++-----------
 3 files changed, 40 insertions(+), 15 deletions(-)

(limited to 'initramfs')

diff --git a/initramfs/initrd-stuff/etc/functions b/initramfs/initrd-stuff/etc/functions
index d645adc9..23f2a6c3 100644
--- a/initramfs/initrd-stuff/etc/functions
+++ b/initramfs/initrd-stuff/etc/functions
@@ -153,7 +153,7 @@ local netdev="eth${vifnum}"
 local pdev="p${netdev}"
 local vdev="veth${vifnum}"
 local vif0="vif0.${vifnum}"
-# fixme: that is the mac address of eth0 device
+# fixme: that is the mac address of main ethernet device
 local mac=$macaddr
 
 brctl addbr ${bridge}
@@ -180,6 +180,21 @@ else
 fi
 }
 #############################################################################
+# definition of wlan interface name and wireless connect
+wlanlinksetup () {
+if=$(iwconfig 2>/dev/null|sed -n "/ESSID:/p"|sed "s/    .*//")
+if [ -n "$if" ] ; then
+  ip link set dev $if up
+  if iwconfig $if mode managed essid "${essid}"; then
+    nwif=$if
+  else
+    error "$init_nowlan"
+  fi
+else
+  error "$init_nowlan"
+fi
+}
+#############################################################################
 # nfs mounter for root filesystem and other sources
 nfsmnt ()
 {
@@ -281,7 +296,7 @@ else
   # ensure the interface is up - might produce conflicts - nbd could
   # fail!!
   [ -n "$noipyet" ] && \
-    ip link set dev eth0 up
+    ip link set dev $nwif up
   [ -f /lib/modules/@@@KERNVER@@@/kernel/net/packet/af_packet.ko ] && \
     modprobe ${MODPRV} af_packet   
   echo "Starting $dhcp for configuration"
@@ -293,14 +308,14 @@ case $dhcp in
     mkdhclconf $vci
     ln -s /bin/dhcpmkconfig /bin/dhclient-script
     dhclient -cf /etc/dhclient.conf -lf /var/lib/dhcp/dhclient.leases \
-      -q eth0 >/dev/null 2>&1 || error "$error_dhclient"
+      -q $nwif >/dev/null 2>&1 || error "$error_dhclient"
   ;;
   # udhcpc is a busybox applet
   udhcpc)
     [ -n $vci ] && vci="-V $vci"
     testmkd /usr/share/udhcpc
     ln -s /bin/dhcpmkconfig /usr/share/udhcpc/default.script
-    udhcpc -b -q $vci -s /usr/share/udhcpc/default.script -i eth0 2>/dev/null
+    udhcpc -b -q $vci -s /usr/share/udhcpc/default.script -i $nwif 2>/dev/null
   ;;
 esac
 echo "dhcp finished at $(sysup)" > /tmp/dhcp-done
diff --git a/initramfs/initrd-stuff/etc/messages b/initramfs/initrd-stuff/etc/messages
index 7cf31c1a..5569704d 100644
--- a/initramfs/initrd-stuff/etc/messages
+++ b/initramfs/initrd-stuff/etc/messages
@@ -35,6 +35,9 @@ with dhcp!"
 init_errnwad="  Failed to load the network \
 adaptor modules defined via mkdxsinitrd\n  run. Please rerun and list the \
 appropriate modules (without .ko)."
+init_nowlan="  No wireless LAN capable interface found. Did you provide the \
+proper kernel\n  modules?"
+init_wlanf="  Unable to configure the WLAN interface."
 init_errdhcp="  Did not get complete IP \
 configuration via DHCP. You may want to add\n  a vendor code identifier \
 via kernel commandline (vci=VCI)."
diff --git a/initramfs/initrd-stuff/init b/initramfs/initrd-stuff/init
index f8905d35..252eb4c0 100755
--- a/initramfs/initrd-stuff/init
+++ b/initramfs/initrd-stuff/init
@@ -52,6 +52,7 @@ mkdir -p ${devdir}/pts ${devdir}/shm ${devdir}/.udevdb ${devdir}/.udev
 
 export PATH=/bin:/sbin:/usr/bin/:/usr/sbin
 export date="${slxconf_date}"
+export nwif="eth0"
 
 export DEBUGLEVEL=0
 export KERNEL="${slxconf_kernver}"
@@ -124,7 +125,7 @@ in $0\ncountry=\"${COUNTRY}\"" >> /etc/machine-setup
     # essid for WLAN boot (experimental, might be moved to a module component
     # in later versions
     essid=*)
-      essid==${opts#essid=}
+      essid=${opts#essid=}
     ;;
     # if configuration should not be gathered by dhcp client
     nodhcp)
@@ -305,6 +306,7 @@ fi
 # load network adaptor modules
 hwautocfg nwmod
 if [ -n "${essid}" ] ; then
+  wlanlinksetup
   echo "Starting shell for testing of WLAN setup procedure"
   /bin/ash
 fi
@@ -313,8 +315,8 @@ fi
 [ $DEBUGLEVEL -eq 20 ] && echo "** starting ip config at $(sysup)"
 ip link set dev lo up
 ip addr add 127.0.0.1/8 dev lo
-ip link set dev eth0 up || error "$init_noeth"
-macaddr=$(ip link show dev eth0|sed -n "/ether [0-9e-f]\{2\}:.*/p" \
+ip link set dev $nwif up || error "$init_noeth"
+macaddr=$(ip link show dev $nwif|sed -n "/ether [0-9e-f]\{2\}:.*/p" \
   |sed -e "s/.*ether //;s/ .*//")
 
 # XEN bridge config
@@ -337,7 +339,7 @@ if [ -n "$ipinfo" ] ; then
 subnet_mask=$subnet_mask\ngateway=$gateway\nserverip=$serverip" \
     >>/etc/machine-setup
   # set static ip address
-  ip addr add $clientip/$(nm2pref $subnet_mask) dev eth0
+  ip addr add $clientip/$(nm2pref $subnet_mask) dev $nwif
   ip route add default via $gateway
 else
   noipyet="yes"
@@ -352,7 +354,7 @@ if [ -n "$noipyet" ] ; then
   [ -z "$clientip" -o -z "$subnet_mask" -o -z "$gateway" \
     -o -z "$broadcast_address" ] && error "$init_errdhcp"
   ip addr add $clientip/$(nm2pref $subnet_mask) broadcast $broadcast_address \
-    dev eth0
+    dev $nwif
 fi
 # check if serverip is set as variable @@@serverip@@@
 sed "s,@@@serverip@@@,$serverip," -i /etc/machine-setup
@@ -386,6 +388,7 @@ if [ -n "${nbdmod}" ] ; then
         usleep 100
       done
       usleep 100
+      echo noop > /sys/block/nbd0/queue/scheduler
       # switch off unneeded block read ahead
       echo "0" > /sys/block/nbd0/queue/read_ahead_kb
       ;;
@@ -412,6 +415,7 @@ if [ -n "${nbdmod}" ] ; then
     # dnbd by Thorsten Zitterell
     dnbd)
       # quickhack
+      RDEV=/dev/dnbd0
       if [ -z $nodnbdcache ] ; then  # variable not really used yet
         mkdir /dnbd
         mount -n -o 'size=10%' -t tmpfs tmpfs /dnbd
@@ -420,13 +424,16 @@ if [ -n "${nbdmod}" ] ; then
         waitfor /tmp/cache 10000
       fi
       [ $(echo $nbdhost|sed "s,\..*,,") -ge 224 ] && \
-        ip route add 224.0.0.0/4 dev eth0
+        ip route add 224.0.0.0/4 dev $nwif
       waitfor /dev/dnbd0 10000 || error "$init_nbddev"
-      while ! dnbd-client -b $nbdhost -d /dev/dnbd0 $clientopt ; do
-        usleep 100
-      done
-      echo "0" > /sys/block/dnbd0/queue/read_ahead_kb
-      RDEV=/dev/dnbd0
+      echo "dnbd-client -b $nbdhost -d $RDEV $clientopt"
+      /bin/ash
+      #while ! dnbd-client -b $nbdhost -d $RDEV $clientopt ; do
+      #  sleep 1
+      #done
+      # problem with squashfs and cfq scheduler
+      echo noop > /sys/block/dnbd0/queue/scheduler
+      echo 0 > /sys/block/dnbd0/queue/read_ahead_kb
       ;;
   esac
   RWRO="ro"
-- 
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