summaryrefslogtreecommitdiffstats
path: root/src/sbin/dhclient-script
diff options
context:
space:
mode:
authorRenato Botelho <renato@netgate.com>2016-05-31 17:04:41 -0300
committerRenato Botelho <renato@netgate.com>2016-05-31 17:04:41 -0300
commit90498252715f33f7142eefb67aba288c0720a11f (patch)
treeee8a39d5b7693d4a7ad9abebeaf2f7ead42454e9 /src/sbin/dhclient-script
parent4ecaca5b94d084bb122add172c612151efc9fd14 (diff)
downloadpfsense-90498252715f33f7142eefb67aba288c0720a11f.zip
pfsense-90498252715f33f7142eefb67aba288c0720a11f.tar.gz
Move our copy of dhclient-script to /usr/local/sbin/pfSense-dhclient-script and change interfaces.inc accordingly
Diffstat (limited to 'src/sbin/dhclient-script')
-rwxr-xr-xsrc/sbin/dhclient-script393
1 files changed, 0 insertions, 393 deletions
diff --git a/src/sbin/dhclient-script b/src/sbin/dhclient-script
deleted file mode 100755
index 0695eff..0000000
--- a/src/sbin/dhclient-script
+++ /dev/null
@@ -1,393 +0,0 @@
-#!/bin/sh
-# $Id$
-# $OpenBSD: dhclient-script,v 1.6 2004/05/06 18:22:41 claudio Exp $
-# $FreeBSD: src/sbin/dhclient/dhclient-script,v 1.4 2005/06/10 03:41:18 brooks Exp $
-#
-# Copyright (c) 2003 Kenneth R Westerback <krw@openbsd.org>
-#
-# Permission to use, copy, modify, and distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-
-HOSTNAME=/bin/hostname
-ROUTE=/sbin/route
-SED=/usr/bin/sed
-ARP=/usr/sbin/arp
-IFCONFIG=/sbin/ifconfig
-PFCTL=/sbin/pfctl
-
-LOCALHOST=127.0.0.1
-
-if [ -x /usr/bin/logger ]; then
- LOGGER="/usr/bin/logger -s -p user.notice -t dhclient"
-else
- LOGGER="echo"
-fi
-
-#
-# Helper functions that implement common actions.
-#
-
-check_hostname() {
- current_hostname=`$HOSTNAME`
- if [ -z "$current_hostname" ] || \
- [ "$current_hostname" = "$old_host_name" -a \
- "$new_hostname" != "$old_host_name" ]; then
- $LOGGER "New Hostname ($interface): $new_host_name"
- $HOSTNAME $new_host_name
- fi
-}
-
-arp_flush() {
- $ARP -an -i $interface | \
- $SED -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' | \
- /bin/sh >/dev/null 2>&1
-}
-
-# NOTE: use of the below has been disabled because rc.newwanip handles this correctly and this
-# unnecessarily killed states in multiple circumstances. Leaving here for now, should be safe
-# to remove later. -cmb 20141105
-delete_old_states() {
- $LOGGER "Starting delete_old_states()"
- _FLUSHED=0
- # If the IP changed, remove states from the old one
- if [ -f /var/db/${interface}_ip ]; then
- OLD_IP=`cat /var/db/${interface}_ip`
- $LOGGER "Comparing IPs: Old: ${OLD_IP} New: ${new_ip_address}"
- if [ -n "${OLD_IP}" ] && [ "${OLD_IP}" != "${new_ip_address}" ]; then
- $LOGGER "Removing states from old IP '${OLD_IP}' (new IP '${new_ip_address}')"
- ${PFCTL} -i $interface -Fs
- ${PFCTL} -K ${OLD_IP}/32
- _FLUSHED=1
- fi
- fi
- # Delete states through old gateway if it's not the same
- OLD_ROUTER=""
- if [ -n "${old_routers}" ]; then
- OLD_ROUTER=$old_routers
- elif [ -f /tmp/${interface}_router ]; then
- OLD_ROUTER=`cat /tmp/${interface}_router`
- fi
- if [ ${_FLUSHED} -eq 0 -a -n "${OLD_ROUTER}" ]; then
- $LOGGER "Comparing Routers: Old: ${OLD_ROUTER} New: ${new_routers}"
- if [ "${OLD_ROUTER}" != "${new_routers}" ]; then
- $LOGGER "Removing states through old gateway '${OLD_ROUTER}' (new gateway '${new_routers}')"
- ${PFCTL} -i $interface -Fs
- fi
- fi
-}
-
-delete_old_address() {
- /bin/rm -f /var/db/${interface}_ip
- $IFCONFIG $interface inet -alias $old_ip_address $medium
-}
-
-add_new_address() {
-
- $LOGGER "Starting add_new_address()"
-
- $LOGGER "ifconfig $interface inet $new_ip_address netmask $new_subnet_mask broadcast $new_broadcast_address $medium"
-
- $IFCONFIG $interface \
- inet $new_ip_address \
- netmask $new_subnet_mask \
- broadcast $new_broadcast_address \
- $medium
- $IFCONFIG $interface setfirst $new_ip_address
-
- $LOGGER "New IP Address ($interface): $new_ip_address"
- $LOGGER "New Subnet Mask ($interface): $new_subnet_mask"
- $LOGGER "New Broadcast Address ($interface): $new_broadcast_address"
- $LOGGER "New Routers ($interface): $new_routers"
-
-
- # This is necessary otherwise dpinger will try to ping all 1s address
- if [ -n "$new_routers" ] && [ "$new_routers" != "255.255.255.255" ]; then
- echo $new_routers > /tmp/${interface}_router
- fi
- echo $new_ip_address > /var/db/${interface}_ip
-}
-
-delete_old_alias() {
- if [ -n "$alias_ip_address" ]; then
- $IFCONFIG $interface inet -alias $alias_ip_address > /dev/null 2>&1
- $ROUTE delete $alias_ip_address $LOCALHOST > /dev/null 2>&1
- fi
-}
-
-add_new_alias() {
- if [ -n "$alias_ip_address" ]; then
- $IFCONFIG $interface inet alias $alias_ip_address netmask \
- $alias_subnet_mask
- $ROUTE add $alias_ip_address $LOCALHOST
- fi
-}
-
-fill_classless_routes() {
- set $1
- while [ $# -ge 5 ]; do
- if [ $1 -eq 0 ]; then
- route="default"
- elif [ $1 -le 8 ]; then
- route="$2.0.0.0/$1"
- shift
- elif [ $1 -le 16 ]; then
- route="$2.$3.0.0/$1"
- shift; shift
- elif [ $1 -le 24 ]; then
- route="$2.$3.$4.0/$1"
- shift; shift; shift
- else
- route="$2.$3.$4.$5/$1"
- shift; shift; shift; shift
- fi
- shift
- router="$1.$2.$3.$4"
- classless_routes="$classless_routes $route $router"
- shift; shift; shift; shift
- done
-}
-
-delete_old_routes() {
- $LOGGER "Deleting old routes"
-
- if [ -n "$old_classless_routes" ]; then
- fill_classless_routes "$old_classless_routes"
- set $classless_routes
- while [ $# -gt 1 ]; do
- route delete "$1" "$2"
- shift; shift
- done
- return 0;
- fi
-
- # Only allow the default route to be overridden if it's on our own interface
- if [ -f "/tmp/${interface}_defaultgw" ]; then
- for router in $old_routers; do
- $ROUTE delete default $router >/dev/null 2>&1
- /bin/rm -f /tmp/${interface}_router
- done
- fi
-
- if [ -n "$old_static_routes" ]; then
- set $old_static_routes
- while [ $# -gt 1 ]; do
- $ROUTE delete "$1" "$2"
- shift; shift
- /bin/rm -f /tmp/${interface}_router
- done
- fi
-
- arp_flush
-}
-
-add_new_routes() {
- $LOGGER "Adding new routes to interface: $interface"
-
- # RFC 3442: If the DHCP server returns both a Classless Static
- # Routes option and a Router option, the DHCP client MUST ignore
- # the Router option.
- #
- # DHCP clients that support this option (Classless Static Routes)
- # MUST NOT install the routes specified in the Static Routes
- # option (option code 33) if both a Static Routes option and the
- # Classless Static Routes option are provided.
- if [ -n "$new_classless_routes" ]; then
- fill_classless_routes "$new_classless_routes"
- $LOGGER "New Classless Static Routes ($interface): $classless_routes"
- set $classless_routes
- while [ $# -gt 1 ]; do
- if [ "0.0.0.0" = "$2" ]; then
- route add "$1" -iface "$interface"
- else
- route add "$1" "$2"
- fi
- shift; shift
- done
- return
- fi
-
- ADDED_ROUTE=no
- EXISTSGW=`/bin/ls -l /tmp/*_defaultgw | /usr/bin/wc -l`
- # Only allow the default route to be overridden if it's on our own interface
- if [ -f "/tmp/${interface}_defaultgw" -o $EXISTSGW -eq 0 ]; then
- $ROUTE delete default
- for router in $new_routers; do
- if [ "$new_ip_address" = "$router" -o "$router" = "255.255.255.255" ]; then
- $ROUTE add default -iface $interface
- echo $ROUTE add default -iface $interface | $LOGGER
- # NOTE: Do not activate this for all ones address since pf(4) will try to forward packets to it.
- if [ "$new_ip_address" = "$router" ]; then
- echo $router > /tmp/${interface}_router
- fi
- else
- $ROUTE add default $router
- echo $ROUTE add default $router | $LOGGER
- echo $router > /tmp/${interface}_router
- fi
- ADDED_ROUTE=yes
- # 2nd and subsequent default routers error out, so explicitly
- # stop processing the list after the first one.
- break
- done
- fi
-
- if [ -n "$new_static_routes" ]; then
- $LOGGER "New Static Routes ($interface): $new_static_routes"
- set $new_static_routes
- while [ $# -gt 1 ]; do
- $ROUTE add $1 $2
- if [ "$ADDED_ROUTE" = "no" ]; then
- echo $2 > /tmp/${interface}_router
- fi
- shift; shift
- done
- fi
-}
-
-add_new_resolv_conf() {
- $LOGGER "Creating resolv.conf"
- if [ -f "/var/etc/nameserver_$interface" ]; then
- # Remove old entries
- for nameserver in `cat /var/etc/nameserver_$interface`; do
- $ROUTE delete $nameserver >/dev/null 2>&1
- done
- fi
- if [ -n "$new_domain_name_servers" ]; then
- /bin/rm -f /var/etc/nameserver_$interface
- ALLOWOVERRIDE=$(/usr/local/sbin/read_xml_tag.sh boolean system/dnsallowoverride)
- for nameserver in $new_domain_name_servers; do
- # Add a route to the nameserver out the correct interface
- # so that mulitple wans work correctly with multiple dns
- # also backup the nameserver for later route removal
- if [ "$ALLOWOVERRIDE" = "true" ]; then
- echo $nameserver >>/var/etc/nameserver_$interface
- $ROUTE add $nameserver -iface $interface
- fi
- done
- echo $new_domain_name >/var/etc/searchdomain_$interface
- fi
-
- return 0
-}
-
-# Notify rc.newwanip of changes to an interface
-notify_rc_newwanip() {
- /usr/local/sbin/pfSctl -c "interface newip $interface"
-}
-
-#
-# Start of active code.
-#
-
-# Invoke the local dhcp client enter hooks, if they exist.
-if [ -f /etc/dhclient-enter-hooks ]; then
- $LOGGER "dhclient-enter-hooks"
- 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 $exit_status
- fi
-fi
-
-$LOGGER $reason
-case $reason in
-MEDIUM)
- $IFCONFIG $interface $medium
- $IFCONFIG $interface inet -alias 0.0.0.0 $medium >/dev/null 2>&1
- /bin/sleep 1
- ;;
-
-PREINIT)
- delete_old_alias
- $IFCONFIG $interface inet 0.0.0.0 netmask 255.0.0.0 broadcast 255.255.255.255 up
- /bin/rm -f /tmp/${interface}_router
- ;;
-
-ARPCHECK|ARPSEND)
- ;;
-
-BOUND|RENEW|REBIND|REBOOT)
- check_hostname
- changes="no"
- if [ -n "$old_ip_address" ]; then
- if [ -n "$alias_ip_address" ] && \
- [ "$old_ip_address" != "$alias_ip_address" ]; then
- delete_old_alias
- changes="yes"
- fi
- if [ "$old_ip_address" != "$new_ip_address" ]; then
- delete_old_address
- delete_old_routes
- changes="yes"
- fi
- fi
- if [ "$reason" = BOUND ] || \
- [ "$reason" = REBOOT ] || \
- [ -z "$old_ip_address" ] || \
- [ "$old_ip_address" != "$new_ip_address" ]; then
- add_new_address
- add_new_routes
- changes="yes"
- fi
- if [ -n "$alias_ip_address" ] && \
- [ "$new_ip_address" != "$alias_ip_address" ]; then
- add_new_alias
- changes="yes"
- fi
- add_new_resolv_conf
- if [ "$changes" = "yes" ] ; then
- notify_rc_newwanip
- fi
- ;;
-
-EXPIRE|FAIL)
- delete_old_alias
- if [ -n "$old_ip_address" ]; then
- delete_old_address
- delete_old_routes
- fi
- ;;
-
-TIMEOUT)
- delete_old_alias
- add_new_address
- /bin/sleep 1
- if [ -n "$new_routers" ]; then
- $LOGGER "New Routers ($interface): $new_routers"
- set "$new_routers"
- if /sbin/ping -q -c 1 -t 1 "$1"; then
- if [ "$new_ip_address" != "$alias_ip_address" ]; then
- add_new_alias
- fi
- add_new_routes
- if add_new_resolv_conf; then
- notify_rc_newwanip
- fi
- fi
- fi
- $IFCONFIG $interface inet -alias $new_ip_address $medium
- delete_old_routes
- ;;
-esac
-
-# Invoke the local dhcp client exit hooks, if they exist.
-if [ -f /etc/dhclient-exit-hooks ]; then
- $LOGGER "dhclient-exit-hooks"
- exit_status=0
- . /etc/dhclient-exit-hooks
- # allow the local script to abort processing of this state
- # local script must set exit_status variable to nonzero.
- exit $exit_status
-fi
OpenPOWER on IntegriCloud