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#!@SHELL@
#
# dnssec trigger for OSX
# the network state has changed, obtain a list of DHCP provided DNS servers.
# somehow in /Library/Preferences/SystemConfiguration/
# com.apple.network.identification.plist - list of configs seen
# preferences.plist - list of what is entered in the config panel
tempfile=/tmp/dnssec-trigger-osx.tmp
# active interfaces
ifs=`ifconfig | awk '/^[^ :]*:/ { sub(/:.*$/,empty); iface=$0 } /status: active/ { print iface }'`
ifs=`echo $ifs`
# the ssid(s) of the wifi
ssid=`/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -I 2>&1 | grep "[^B]SSID:"`
bssid=`/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -I 2>&1 | grep "BSSID:"`
# and the DNS servers for that
ips=""
for i in $ifs; do
ips_i=`ipconfig getpacket $i | grep "domain_name_server" | sed -e 's/^.*{//' -e 's/,/ /g' -e 's/}//' `
ips="$ips $ips_i"
done
# fix whitespace
ips=`echo $ips`
# see if it has changed
if test -f $tempfile; then
if echo "$ifs $ips $ssid $bssid" | diff $tempfile - >/dev/null; then
# it is equal
#logger "dnssec-trigger(osx) no-change $ifs DNS $ips"
exit 0
fi
fi
# store on file
echo "$ifs $ips $ssid $bssid" > $tempfile
logger "dnssec-trigger(osx) detected $ifs DNS $ips"
0sbindir0/dnssec-trigger-control submit "$ips"
exit 0
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