Revision 264562c1 common.sh
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fi |
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# DDNS related functions |
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# ommit zone statement |
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# nsupdate will attempt determine the correct zone to update based on the rest of the input |
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send_command () { |
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local command="$1" |
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hooks-log dnshook "$command" |
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nsupdate -k $KEYFILE > /dev/null << EOF |
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server $SERVER |
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$command |
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send |
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EOF |
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} |
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update_arecord () { |
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local action=$1 |
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local command= |
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if [ -n "$IP" ]; then |
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command="update $action $GANETI_INSTANCE_NAME.$FZONE $TTL A $IP" |
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send_command "$command" |
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fi |
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} |
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update_aaaarecord () { |
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local action=$1 |
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local command= |
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if [ -n "$EUI64" ]; then |
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command="update $action $GANETI_INSTANCE_NAME.$FZONE $TTL AAAA $EUI64" |
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send_command "$command" |
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fi |
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} |
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update_ptrrecord () { |
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local action=$1 |
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local command= |
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if [ -n "$IP" ]; then |
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command="update $action $RLPART.$RZONE. $TTL PTR $GANETI_INSTANCE_NAME.$FZONE" |
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send_command "$command" |
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fi |
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} |
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update_ptr6record () { |
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local action=$1 |
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local command= |
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if [ -n "$EUI64" ]; then |
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command="update $action $R6LPART$R6ZONE. $TTL PTR $GANETI_INSTANCE_NAME.$FZONE" |
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send_command "$command" |
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fi |
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} |
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update_all () { |
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local action=$1 |
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update_arecord $action |
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update_aaaarecord $action |
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update_ptrrecord $action |
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update_ptr6record $action |
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} |
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# first argument is an eui64 (IPv6) |
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# sets GLOBAL args R6REC, R6ZONE, R6LPART |
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# lets assume eui64=2001:648:2ffc:1::1 |
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# the following commands produce: |
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# R6REC=1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.c.f.f.2.8.4.6.0.1.0.0.2.ip6.arpa |
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# R6ZONE=1.0.0.0.c.f.f.2.8.4.6.0.1.0.0.2.ip6.arpa |
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# R6LPART=1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0. |
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get_rev6_info () { |
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local eui64=$1 |
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if [ -z "$eui64" ]; then |
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R6REC= ; R6ZONE= ; R6LPART= ; |
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else |
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R6REC=$(host $eui64 | egrep -o '([[:alnum:]]\.){32}ip6.arpa' ) |
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R6ZONE=$(echo $R6REC | awk -F. 'BEGIN{rpart="";} { for (i=32;i>16;i=i-1) rpart=$i "." rpart; } END{print rpart "ip6.arpa";}') |
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R6LPART=$(echo $R6REC | awk -F. 'BEGIN{lpart="";} { for (i=16;i>0;i=i-1) lpart=$i "." lpart; } END{print lpart;}') |
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fi |
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} |
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# first argument is an ipv4 |
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# sets args RZONE, RLPART |
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# lets assume IP=203.0.113.1 |
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# RZONE="113.0.203.in-add.arpa" |
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# RLPART="1" |
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get_rev4_info () { |
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local ip=$1 |
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if [ -z "$ip" ]; then |
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RZONE= ; RLPART= ; |
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else |
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OLDIFS=$IFS |
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IFS=". " |
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set -- $ip |
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a=$1 ; b=$2; c=$3; d=$4; |
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IFS=$OLDIFS |
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RZONE="$c.$b.$a.in-addr.arpa" |
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RLPART="$d" |
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fi |
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} |
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# Query nameserver for entries related to the specific instance |
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# An example output is the following: |
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# www.google.com has address 173.194.113.114 |
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# www.google.com has address 173.194.113.115 |
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# www.google.com has address 173.194.113.116 |
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# www.google.com has address 173.194.113.112 |
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# www.google.com has address 173.194.113.113 |
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# www.google.com has IPv6 address 2a00:1450:4001:80b::1012 |
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query_dns () { |
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HOSTQ="host -s -R 3 -W 3" |
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HOST_IP_ALL=$($HOSTQ $GANETI_INSTANCE_NAME.$FZONE $SERVER | sed -n 's/.*has address //p') |
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HOST_IP6_ALL=$($HOSTQ $GANETI_INSTANCE_NAME.$FZONE $SERVER | sed -n 's/.*has IPv6 address //p') |
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} |
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