5.6 FreeBSD
5.7 NeXTSTEP
5.8 SOLARIS
+ 5.9 AIX
+ 5.10 MacOS X
6 SUPPORT
6.1 HOW TO REPORT BUGS
AIX comes with a DHCP client. Contribution of a working dhclient-script
for AIX would be welcome.
+ MacOS X
+
+The MacOS X system uses a TCP/IP stack derived from FreeBSD with a
+user-friendly interface named the System Configuration Framework.
+As it includes a builtin DHCPv4 client (you are better just using that),
+this text is only about the DHCPv6 client (``dhclient -6 ...''). The DNS
+configuration (domain search list and name servers' addresses) is managed
+by a System Configuration agent, not by /etc/resolv.conf (which is a link
+to /var/run/resolv.conf, which itself only reflects the internal state;
+the System Configuration agent's Dynamic Store).
+
+This means that modifying resolv.conf directly doesn't have the intended
+effect, so the macos script sample uses its own resolv.conf.dhclient6 in
+/var/run, and inserts the contents of this file into the System
+Configuration agent. Because the System Configuration agent expects the
+prefix along with the configured address, and a default router, this is
+not usable (the DHCPv6 protocol does not today deliver this information).
+Instead, ifconfig is directly used for address configuration.
+
+Note the Dynamic Store (from which /var/run/resolv.conf is built) is
+recomputed from scratch when the current location/set is changed, for
+instance when a laptop is resumed from sleep. In this case running the
+dhclient-script could reinstall the resolv.conf.dhclient6 configuration.
+
SUPPORT
The Internet Systems Consortium DHCP server is developed and distributed
--- /dev/null
+#!/bin/sh
+#
+# $Id: macos,v 1.2 2008/11/03 23:32:12 dhankins Exp $
+#
+# automous run of this script will commit the DNS setting
+#
+
+if [ -x /usr/bin/logger ]; then
+ LOGGER="/usr/bin/logger -s -p user.notice -t dhclient"
+else
+ LOGGER=echo
+fi
+
+to_commit="yes"
+
+make_resolv_conf() {
+ to_commit="no"
+ if [ "x${new_dhcp6_name_servers}" != x ]; then
+ ( cat /dev/null > /var/run/resolv.conf.dhclient6 )
+ exit_status=$?
+ if [ $exit_status -ne 0 ]; then
+ $LOGGER "Unable to create /var/run/resolv.conf.dhclient6: Error $exit_status"
+ else
+ if [ "x${new_dhcp6_domain_search}" != x ]; then
+ ( echo search ${new_dhcp6_domain_search} >> /var/run/resolv.conf.dhclient6 )
+ exit_status=$?
+ fi
+ for nameserver in ${new_dhcp6_name_servers} ; do
+ if [ $exit_status -ne 0 ]; then
+ break
+ fi
+ ( echo nameserver ${nameserver} >> /var/run/resolv.conf.dhclient6 )
+ exit_status=$?
+ done
+
+ if [ $exit_status -eq 0 ]; then
+ to_commit="force"
+ commit_resolv_conf
+ fi
+ fi
+ fi
+}
+
+# Try to commit /var/run/resolv.conf.dhclient6 contents to
+# SystemConfiguration Dynamic Store
+# Note this will be cleared by the next location change
+commit_resolv_conf() {
+ if [ -f /var/run/resolv.conf.dhclient6 ]; then
+ if [ -x /usr/sbin/scutil ]; then
+ serviceID=`echo show State:/Network/Global/IPv6 | \
+ /usr/sbin/scutil | \
+ awk '/PrimaryService/ { print $3 }'`
+ echo $serviceID
+ if [ x$serviceID = x ]; then
+ $LOGGER "Can't find the primary IPv6 service"
+ else
+ tmp=`mktemp SC_dhclient6.XXXXXXXXXX`
+ echo list | /usr/sbin/scutil > /tmp/$tmp
+ grep -q State:/Network/Service/$serviceID/DNS /tmp/$tmp
+ grep_status=$?
+ if [ $grep_status -eq 0 ]; then
+ $LOGGER "DNS service already set in primary IPv6 service"
+ rm /tmp/$tmp
+ else
+ res=/var/run/resolv.conf.dhclient6
+ cp /dev/null /tmp/$tmp
+ grep -q '^nameserver' $res
+ grep_status=$?
+ if [ $grep_status -eq 0 ]; then
+ echo d.add ServerAddresses '*' \
+ `awk 'BEGIN { n="" } \
+ /^nameserver/ { n=n " " $2 } \
+ END { print n}' < $res` >> /tmp/$tmp
+ fi
+ grep -q '^search' $res
+ grep_status=$?
+ if [ $grep_status -eq 0 ]; then
+ echo d.add SearchDomains '*' \
+ `sed 's/^search//' < $res` >> /tmp/$tmp
+ fi
+ echo set State:/Network/Service/$serviceID/DNS >> /tmp/$tmp
+ echo quit >> /tmp/$tmp
+ cat /tmp/$tmp
+ /usr/sbin/scutil < /tmp/$tmp
+ rm /tmp/$tmp
+ fi
+ fi
+ else
+ $LOGGER "Can't find SystemConfiguration tools."
+ fi
+ else
+ if [ $to_commit = force ]; then
+ $LOGGER "Can't find /var/run/resolv.conf.dhclient6"
+ fi
+ fi
+ to_commit="done"
+}
+
+# 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 $exit_status
+ fi
+fi
+
+if [ x$reason = xMEDIUM ]; then
+ eval "ifconfig $interface $medium"
+ eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
+ sleep 1
+ exit_with_hooks 0
+fi
+
+###
+### DHCPv6 Handlers
+###
+
+if [ x$reason = xPREINIT6 ]; then
+ # Ensure interface is up.
+ ifconfig ${interface} up
+
+ # XXX: Remove any stale addresses from aborted clients.
+
+ exit_with_hooks 0
+fi
+
+if [ x${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} inet6 ${new_ip6_address}/${new_ip6_prefixlen} alias
+
+ # Check for nameserver options.
+ make_resolv_conf
+
+ exit_with_hooks 0
+fi
+
+if [ x$reason = xRENEW6 ] || [ x$reason = xREBIND6 ]; then
+ # 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
+
+ ifconfig ${interface} inet6 ${new_ip6_address} deprecated
+
+ exit_with_hooks 0
+fi
+
+if [ x$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} inet6 ${old_ip6_address}/${old_ip6_prefixlen} -alias
+
+ exit_with_hooks 0
+fi
+
+if [ $to_commit = yes ]; then
+ commit_resolv_conf
+fi
+
+exit_with_hooks 0
projects / thirdparty / dhcp.git / commitdiff
