X-Git-Url: https://review.fuel-infra.org/gitweb?a=blobdiff_plain;f=cirros-testvm%2Fsrc-cirros%2Fbuildroot-2015.05%2Fpackage%2Fdhcp%2Fdhclient-script;fp=cirros-testvm%2Fsrc-cirros%2Fbuildroot-2015.05%2Fpackage%2Fdhcp%2Fdhclient-script;h=cb292b6fbdf9fc21f57b6844b409b6479b7702d7;hb=b0a0f15dfaa205161a7fcb20cf1b8cd4948c2ef3;hp=0000000000000000000000000000000000000000;hpb=c6ac3cd55ee2da956195eee393b0882105dfad4e;p=packages%2Ftrusty%2Fcirros-testvm.git

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/dhcp/dhclient-script b/cirros-testvm/src-cirros/buildroot-2015.05/package/dhcp/dhclient-script
new file mode 100755
index 0000000..cb292b6
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/package/dhcp/dhclient-script
@@ -0,0 +1,284 @@
+#!/bin/sh
+
+# dhclient-script from OpenWRT project
+# http://git.openwrt.org/?p=packages.git;a=blob;f=net/isc-dhcp/files/dhclient-script;h=4afebc0ad20ebac51c5baae5ed01c6713e3a0fd0;hb=HEAD
+
+make_resolv_conf() {
+  if [ x"$new_domain_name_servers" != x ]; then
+    cat /dev/null > /etc/resolv.conf.dhclient
+    chmod 644 /etc/resolv.conf.dhclient
+    if [ x"$new_domain_search" != x ]; then
+      echo search $new_domain_search >> /etc/resolv.conf.dhclient
+    elif [ x"$new_domain_name" != x ]; then
+      # Note that the DHCP 'Domain Name Option' is really just a domain
+      # name, and that this practice of using the domain name option as
+      # a search path is both nonstandard and deprecated.
+      echo search $new_domain_name >> /etc/resolv.conf.dhclient
+    fi
+    for nameserver in $new_domain_name_servers; do
+      echo nameserver $nameserver >>/etc/resolv.conf.dhclient
+    done
+
+  elif [ "x${new_dhcp6_name_servers}" != x ] ; then
+    cat /dev/null > /etc/resolv.conf.dhclient6
+    chmod 644 /etc/resolv.conf.dhclient6
+
+    if [ "x${new_dhcp6_domain_search}" != x ] ; then
+      echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6
+    fi
+    for nameserver in ${new_dhcp6_name_servers} ; do
+      echo nameserver ${nameserver} >> /etc/resolv.conf.dhclient6
+    done
+  fi
+
+  # if both v4 and v6 clients are running, concatenate results
+  cat /etc/resolv.conf.* > /etc/resolv.conf
+}
+
+# Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
+exit_with_hooks() {
+  exit_status=$1
+  if [ -f /etc/dhclient-exit-hooks ]; then
+    . /etc/dhclient-exit-hooks
+  fi
+# probably should do something with exit status of the local script
+  exit $exit_status
+}
+
+# Invoke the local dhcp client enter hooks, if they exist.
+if [ -f /etc/dhclient-enter-hooks ]; then
+  exit_status=0
+  . /etc/dhclient-enter-hooks
+  # allow the local script to abort processing of this state
+  # local script must set exit_status variable to nonzero.
+  if [ $exit_status -ne 0 ]; then
+    exit $exit_status
+  fi
+fi
+
+###
+### DHCPv4 Handlers
+###
+
+if [ x$new_broadcast_address != x ]; then
+  new_broadcast_arg="broadcast $new_broadcast_address"
+fi
+if [ x$new_subnet_mask != x ]; then
+  new_subnet_arg="netmask $new_subnet_mask"
+fi
+if [ x$alias_subnet_mask != x ]; then
+  alias_subnet_arg="netmask $alias_subnet_mask"
+fi
+
+if [ x$reason = xMEDIUM ]; then
+  # Linux doesn't do mediums (ok, ok, media).
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xPREINIT ]; then
+  if [ x$alias_ip_address != x ]; then
+    # Bring down alias interface. Its routes will disappear too.
+    ifconfig $interface:0- 0.0.0.0
+  fi
+  ifconfig $interface 0.0.0.0 up
+
+  # We need to give the kernel some time to get the interface up.
+  sleep 1
+
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
+  exit_with_hooks 0
+fi
+  
+if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
+   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
+  current_hostname=`hostname`
+  if [ x$current_hostname = x ] || \
+     [ x$current_hostname = x$old_host_name ]; then
+    if [ x$current_hostname = x ] || \
+       [ x$new_host_name != x$old_host_name ]; then
+      hostname $new_host_name
+    fi
+  fi
+    
+  if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
+		[ x$alias_ip_address != x$old_ip_address ]; then
+    # Possible new alias. Remove old alias.
+    ifconfig $interface:0- 0.0.0.0
+  fi
+  if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
+    # IP address changed. Bringing down the interface will delete all routes,
+    # and clear the ARP cache.
+    ifconfig $interface 0.0.0.0 down
+
+  fi
+  if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
+     [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
+
+    ifconfig $interface $new_ip_address $new_subnet_arg \
+							$new_broadcast_arg
+    for router in $new_routers; do
+      if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
+	route add -host $router dev $interface
+      fi
+      route add default gw $router
+    done
+  fi
+  if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
+   then
+    ifconfig $interface:0- 0.0.0.0
+    ifconfig $interface:0 $alias_ip_address $alias_subnet_arg
+    route add -host $alias_ip_address $interface:0
+  fi
+  make_resolv_conf
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
+   || [ x$reason = xSTOP ]; then
+  if [ x$alias_ip_address != x ]; then
+    # Turn off alias interface.
+    ifconfig $interface:0- 0.0.0.0
+  fi
+  if [ x$old_ip_address != x ]; then
+    # Shut down interface, which will delete routes and clear arp cache.
+    ifconfig $interface 0.0.0.0 down
+  fi
+  if [ x$alias_ip_address != x ]; then
+    ifconfig $interface:0 $alias_ip_address $alias_subnet_arg
+    route add -host $alias_ip_address $interface:0
+  fi
+
+  # remove v4 dns configuration for this interface
+  rm /etc/resolv.conf.dhclient
+  cat /etc/resolv.conf.* > /etc/resolv.conf
+
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xTIMEOUT ]; then
+  if [ x$alias_ip_address != x ]; then
+    ifconfig $interface:0- 0.0.0.0
+  fi
+  ifconfig $interface $new_ip_address $new_subnet_arg \
+					$new_broadcast_arg
+  set $new_routers
+  if ping -q -c 1 $1; then
+    if [ x$new_ip_address != x$alias_ip_address ] && \
+			[ x$alias_ip_address != x ]; then
+      ifconfig $interface:0 $alias_ip_address $alias_subnet_arg
+      route add -host $alias_ip_address dev $interface:0
+    fi
+    for router in $new_routers; do
+      if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
+	route add -host $router dev $interface
+      fi
+      route add default gw $router
+    done
+    make_resolv_conf
+    exit_with_hooks 0
+  fi
+  ifconfig $interface 0.0.0.0 down
+  exit_with_hooks 1
+fi
+
+###
+### DHCPv6 Handlers
+###
+
+if [ x$reason = xPREINIT6 ]; then
+  # Ensure interface is up.
+  ifconfig ${interface} up
+
+  # Remove any stale addresses from aborted clients.
+  ip -f inet6 addr flush dev ${interface} scope global
+
+  exit_with_hooks 0
+fi
+
+if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ] ; then
+    echo Prefix ${reason} old=${old_ip6_prefix} new=${new_ip6_prefix}
+
+    exit_with_hooks 0
+fi
+
+if [ x$reason = xBOUND6 ]; then
+  if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
+    exit_with_hooks 2;
+  fi
+
+  ifconfig ${interface} add ${new_ip6_address}/${new_ip6_prefixlen}
+
+  # Check for nameserver options.
+  make_resolv_conf
+
+### <<
+  # Set up softwire tunnel
+  if [ x${new_dhcp6_softwire} != x ] ; then
+    /etc/init.d/dhclient stop
+    ifconfig ${interface} 0.0.0.0
+    ip -6 tunnel add tun0 mode ipip6 \
+	remote ${new_dhcp6_softwire} \
+	local ${new_ip6_address} \
+	dev ${interface} encaplimit none
+    ip link set tun0 up
+    ip route add default dev tun0
+  fi
+### >>
+
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xRENEW6 ] || [ x$reason = xREBIND6 ]; then
+  if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
+    exit_with_hooks 2;
+  fi
+
+  ifconfig ${interface} add ${new_ip6_address}/${new_ip6_prefixlen}
+
+  # Make sure nothing has moved around on us.
+
+  # Nameservers/domains/etc.
+  if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
+     [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
+    make_resolv_conf
+  fi
+
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xDEPREF6 ]; then
+  if [ x${new_ip6_address} = x ] ; then
+    exit_with_hooks 2;
+  fi
+
+  # Busybox ifconfig has no way to communicate this to the kernel, so ignore it
+
+  exit_with_hooks 0
+fi
+
+if [ x$reason = xEXPIRE6 -o x$reason = xRELEASE6 -o x$reason = xSTOP6 ]; then
+  if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ] ; then
+    exit_with_hooks 2;
+  fi
+
+  ifconfig ${interface} del ${old_ip6_address}/${old_ip6_prefixlen}
+
+  # remove v6 dns configuration for this interface
+  rm /etc/resolv.conf.dhclient6
+  cat /etc/resolv.conf.* > /etc/resolv.conf
+
+### <<
+  # Tear down softwire tunnel
+  if [ x${old_dhcp6_softwire} != x ] ; then
+    ip link set tun0 down
+    ip tunnel del tun0
+  fi
+### >>
+
+  exit_with_hooks 0
+fi
+
+exit_with_hooks 0