[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/iproute2/iproute2-3.4.0/examples/dhcp-client-script b/ap/app/iproute2/iproute2-3.4.0/examples/dhcp-client-script
new file mode 100755
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+++ b/ap/app/iproute2/iproute2-3.4.0/examples/dhcp-client-script
@@ -0,0 +1,446 @@
+#!/bin/bash
+#
+# dhclient-script for Linux.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version
+# 2 of the License, or (at your option) any later version.
+#
+# Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+#
+# Probably, I did not understand, what this funny feature as "alias"
+# means exactly. For now I suppose, that it is a static address, which
+# we should install and preserve.
+#
+
+exec >> /var/log/DHS.log 2>&1
+
+echo dhc-script $* reason=$reason
+set | grep "^\(old_\|new_\|check_\)"
+
+LOG () {
+ echo LOG $* ;
+}
+
+# convert 8bit mask to length
+# arg: $1 = mask
+#
+Mask8ToLen() {
+ local l=0;
+
+ while [ $l -le 7 ]; do
+ if [ $[ ( 1 << $l ) + $1 ] -eq 256 ]; then
+ return $[ 8 - $l ]
+ fi
+ l=$[ $l + 1 ]
+ done
+ return 0;
+}
+
+# convert inet dotted quad mask to length
+# arg: $1 = dotquad mask
+#
+MaskToLen() {
+ local masklen=0
+ local mask8=$1
+
+ case $1 in
+ 0.0.0.0)
+ return 0;
+ ;;
+ 255.*.0.0)
+ masklen=8
+ mask8=${mask8#255.}
+ mask8=${mask8%.0.0}
+ ;;
+ 255.255.*.0)
+ masklen=16
+ mask8=${mask8#255.255.}
+ mask8=${mask8%.0}
+ ;;
+ 255.255.255.*)
+ masklen=24
+ mask8=${mask8#255.255.255.}
+ ;;
+ *)
+ return 255
+ ;;
+ esac
+ Mask8ToLen $mask8
+ return $[ $? + $masklen ]
+}
+
+# calculate ABC "natural" mask
+# arg: $1 = dotquad address
+#
+ABCMask () {
+ local class;
+
+ class=${1%%.*}
+
+ if [ "$1" = "255.255.255.255" ]; then
+ echo $1
+ elif [ "$1" = "0.0.0.0" ]; then
+ echo $1
+ elif [ $class -ge 224 ]; then
+ echo 240.0.0.0
+ elif [ $class -ge 192 ]; then
+ echo 255.255.255.0
+ elif [ $class -ge 128 ]; then
+ echo 255.255.0.0
+ else
+ echo 255.0.0.0
+ fi
+}
+
+# calculate ABC "natural" mask length
+# arg: $1 = dotquad address
+#
+ABCMaskLen () {
+ local class;
+
+ class=${1%%.*}
+
+ if [ "$1" = "255.255.255.255" ]; then
+ return 32
+ elif [ "$1" = "0.0.0.0" ]; then
+ return 0
+ elif [ $class -ge 224 ]; then
+ return 4;
+ elif [ $class -ge 192 ]; then
+ return 24;
+ elif [ $class -ge 128 ]; then
+ return 16;
+ else
+ return 8;
+ fi
+}
+
+# Delete IP address
+# args: $1 = interface
+# $2 = address
+# $3 = mask
+# $4 = broadcast
+# $5 = label
+#
+DelINETAddr () {
+ local masklen=32
+ local addrid=$1
+
+ LOG DelINETAddr $*
+
+ if [ "$5" ]; then
+ addrid=$addrid:$5
+ fi
+ LOG ifconfig $addrid down
+ ifconfig $addrid down
+}
+
+# Add IP address
+# args: $1 = interface
+# $2 = address
+# $3 = mask
+# $4 = broadcast
+# $5 = label
+#
+AddINETAddr () {
+ local mask_arg
+ local brd_arg
+ local addrid=$1
+
+ LOG AddINETAddr $*
+
+ if [ "$5" ]; then
+ addrid=$addrid:$5
+ fi
+ if [ "$3" ]; then
+ mask_arg="netmask $3"
+ fi
+ if [ "$4" ]; then
+ brd_arg="broadcast $4"
+ fi
+
+ LOG ifconfig $addrid $2 $mask_arg $brd_arg up
+ ifconfig $addrid $2 $mask_arg $brd_arg up
+}
+
+# Add default routes
+# args: $1 = routers list
+#
+AddDefaultRoutes() {
+ local router
+
+ if [ "$1" ]; then
+ LOG AddDefaultRoutes $*
+ for router in $1; do
+ LOG route add default gw $router
+ route add default gw $router
+ done ;
+ fi
+}
+
+# Delete default routes
+# args: $1 = routers list
+#
+DelDefaultRoutes() {
+ local router
+
+ if [ "$1" ]; then
+ LOG DelDefaultRoutes $*
+
+ for router in $1; do
+ LOG route del default gw $router
+ route del default gw $router
+ done
+ fi
+}
+
+# ping a host
+# args: $1 = dotquad address of the host
+#
+PingNode() {
+ LOG PingNode $*
+ if ping -q -c 1 -w 2 $1 ; then
+ return 0;
+ fi
+ return 1;
+}
+
+# Check (and add route, if alive) default routers
+# args: $1 = routers list
+# returns: 0 if at least one router is alive.
+#
+CheckRouterList() {
+ local router
+ local succeed=1
+
+ LOG CheckRouterList $*
+
+ for router in $1; do
+ if PingNode $router ; then
+ succeed=0
+ route add default gw $router
+ fi
+ done
+ return $succeed
+}
+
+# Delete/create static routes.
+# args: $1 = operation (del/add)
+# $2 = routes list in format "dst1 nexthop1 dst2 ..."
+#
+# BEWARE: this feature of DHCP is obsolete, because does not
+# support subnetting.
+#
+X-StaticRouteList() {
+ local op=$1
+ local lst="$2"
+ local masklen
+
+ LOG X-StaticRouteList $*
+
+ if [ "$lst" ]; then
+ set $lst
+ while [ $# -gt 1 ]; do
+ route $op -net $1 netmask `ABCMask "$1"` gw $2
+ shift; shift;
+ done
+ fi
+}
+
+# Create static routes.
+# arg: $1 = routes list in format "dst1 nexthop1 dst2 ..."
+#
+AddStaticRouteList() {
+ LOG AddStaticRouteList $*
+ X-StaticRouteList add "$1"
+}
+
+# Delete static routes.
+# arg: $1 = routes list in format "dst1 nexthop1 dst2 ..."
+#
+DelStaticRouteList() {
+ LOG DelStaticRouteList $*
+ X-StaticRouteList del "$1"
+}
+
+# Broadcast unsolicited ARP to update neighbours' caches.
+# args: $1 = interface
+# $2 = address
+#
+UnsolicitedARP() {
+ if [ -f /sbin/arping ]; then
+ /sbin/arping -A -c 1 -I "$1" "$2" &
+ (sleep 2 ; /sbin/arping -U -c 1 -I "$1" "$2" ) &
+ fi
+}
+
+# Duplicate address detection.
+# args: $1 = interface
+# $2 = test address
+# returns: 0, if DAD succeeded.
+DAD() {
+ if [ -f /sbin/arping ]; then
+ /sbin/arping -c 2 -w 3 -D -I "$1" "$2"
+ return $?
+ fi
+ return 0
+}
+
+
+# Setup resolver.
+# args: NO
+# domain and nameserver list are passed in global variables.
+#
+# NOTE: we try to be careful and not to break user supplied resolv.conf.
+# The script mangles it, only if it has dhcp magic signature.
+#
+UpdateDNS() {
+ local nameserver
+ local idstring="#### Generated by DHCPCD"
+
+ LOG UpdateDNS $*
+
+ if [ "$new_domain_name" = "" -a "$new_domain_name_servers" = "" ]; then
+ return 0;
+ fi
+
+ echo $idstring > /etc/resolv.conf.dhcp
+ if [ "$new_domain_name" ]; then
+ echo search $new_domain_name >> /etc/resolv.conf.dhcp
+ fi
+ echo options ndots:1 >> /etc/resolv.conf.dhcp
+
+ if [ "$new_domain_name_servers" ]; then
+ for nameserver in $new_domain_name_servers; do
+ echo nameserver $nameserver >> /etc/resolv.conf.dhcp
+ done
+ else
+ echo nameserver 127.0.0.1 >> /etc/resolv.conf.dhcp
+ fi
+
+ if [ -f /etc/resolv.conf ]; then
+ if [ "`head -1 /etc/resolv.conf`" != "$idstring" ]; then
+ return 0
+ fi
+ if [ "$old_domain_name" = "$new_domain_name" -a
+ "$new_domain_name_servers" = "$old_domain_name_servers" ]; then
+ return 0
+ fi
+ fi
+ mv /etc/resolv.conf.dhcp /etc/resolv.conf
+}
+
+case $reason in
+NBI)
+ exit 1
+ ;;
+
+MEDIUM)
+ exit 0
+ ;;
+
+PREINIT)
+ ifconfig $interface:dhcp down
+ ifconfig $interface:dhcp1 down
+ if [ -d /proc/sys/net/ipv4/conf/$interface ]; then
+ ifconfig $interface:dhcp 10.10.10.10 netmask 255.255.255.255
+ ifconfig $interface:dhcp down
+ if [ -d /proc/sys/net/ipv4/conf/$interface ]; then
+ LOG The interface $interface already configured.
+ fi
+ fi
+ ifconfig $interface:dhcp up
+ exit 0
+ ;;
+
+ARPSEND)
+ exit 0
+ ;;
+
+ARPCHECK)
+ if DAD "$interface" "$check_ip_address" ; then
+ exit 0
+ fi
+ exit 1
+ ;;
+
+BOUND|RENEW|REBIND|REBOOT)
+ if [ "$old_ip_address" -a "$alias_ip_address" -a \
+ "$alias_ip_address" != "$old_ip_address" ]; then
+ DelINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ if [ "$old_ip_address" -a "$old_ip_address" != "$new_ip_address" ]; then
+ DelINETAddr "$interface" "$old_ip_address" "$old_subnet_mask" "$old_broadcast_address" dhcp
+ DelDefaultRoutes "$old_routers"
+ DelStaticRouteList "$old_static_routes"
+ fi
+ if [ "$old_ip_address" = "" -o "$old_ip_address" != "$new_ip_address" -o \
+ "$reason" = "BOUND" -o "$reason" = "REBOOT" ]; then
+ AddINETAddr "$interface" "$new_ip_address" "$new_subnet_mask" "$new_broadcast_address" dhcp
+ AddStaticRouteList "$new_static_routes"
+ AddDefaultRoutes "$new_routers"
+ UnsolicitedARP "$interface" "$new_ip_address"
+ fi
+ if [ "$new_ip_address" != "$alias_ip_address" -a "$alias_ip_address" ]; then
+ AddINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ UpdateDNS
+ exit 0
+ ;;
+
+EXPIRE|FAIL)
+ if [ "$alias_ip_address" ]; then
+ DelINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ if [ "$old_ip_address" ]; then
+ DelINETAddr "$interface" "$old_ip_address" "$old_subnet_mask" "$old_broadcast_address" dhcp
+ DelDefaultRoutes "$old_routers"
+ DelStaticRouteList "$old_static_routes"
+ fi
+ if [ "$alias_ip_address" ]; then
+ AddINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ exit 0
+ ;;
+
+TIMEOUT)
+ if [ "$alias_ip_address" ]; then
+ DelINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+# Seems, <null address> means, that no more old leases found.
+# Or does it mean bug in dhcpcd? 8) Fail for now.
+ if [ "$new_ip_address" = "<null address>" ]; then
+ if [ "$old_ip_address" ]; then
+ DelINETAddr "$interface" "$old_ip_address" "$old_subnet_mask" "$old_broadcast_address" dhcp
+ fi
+ if [ "$alias_ip_address" ]; then
+ AddINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ exit 1
+ fi
+ if DAD "$interface" "$new_ip_address" ; then
+ AddINETAddr "$interface" "$new_ip_address" "$new_subnet_mask" "$new_broadcast_address" dhcp
+ UnsolicitedARP "$interface" "$new_ip_address"
+ if [ "$alias_ip_address" -a "$alias_ip_address" != "$new_ip_address" ]; then
+ AddINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ UnsolicitedARP "$interface" "$alias_ip_address"
+ fi
+ if CheckRouterList "$new_routers" ; then
+ AddStaticRouteList "$new_static_routes"
+ UpdateDNS
+ exit 0
+ fi
+ fi
+ DelINETAddr "$interface" "$new_ip_address" "$new_subnet_mask" "$new_broadcast_address" dhcp
+ DelDefaultRoutes "$old_routers"
+ DelStaticRouteList "$old_static_routes"
+ if [ "$alias_ip_address" ]; then
+ AddINETAddr "$interface" "$alias_ip_address" "$alias_subnet_mask" "$alias_broadcast_address" dhcp1
+ fi
+ exit 1
+ ;;
+esac
+
+exit 0