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|
#!/bin/sh
#
# $Id: macos,v 1.2.108.2 2011-09-20 17:04:03 sar 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
# If the nameserver has a link-local address
# add a <zone_id> (interface name) to it.
case $nameserver in
fe80:*) zone_id="%$interface";;
FE80:*) zone_id="%$interface";;
*) zone_id='';;
esac
( echo nameserver ${nameserver}$zone_id >> /etc/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
# System Configuration framework's Dynamic Store.
# Note this will be cleared by the next location change
# or preempted by IPv4.
#
# The System Configuration agent "IPMonitor" gets the DNS configuration
# from the IPv4 or IPv6 primary service in the Dynamic Store
# (managed by configd).
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
|
