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| author | Florian Fainelli <florian@openwrt.org> | 2014-05-20 05:00:28 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2014-05-20 05:00:28 +0000 |
| commit | 8f526ff53067d029f42e0b887d770b28546fc0e9 (patch) | |
| tree | 21da62fc3caa4820ff83cf1d22cee02a297fba72 /package | |
| parent | 0571a1454b4a9b7c95dc429118534dac32c603e4 (diff) | |
| download | mtk-20170518-8f526ff53067d029f42e0b887d770b28546fc0e9.zip mtk-20170518-8f526ff53067d029f42e0b887d770b28546fc0e9.tar.gz mtk-20170518-8f526ff53067d029f42e0b887d770b28546fc0e9.tar.bz2 | |
dnsmasq: Allow creating static DNS entries from static lease entries
DHCP entries in /etc/config/dhcp will not automatically create A or PTR
records. Add an "option dns" directive which appends an entry to
/tmp/hosts/dhcp to facilitate forward and reverse DNS lookups. For
instance, this item:
config host
option ip '192.168.0.10'
option mac '00:13:57:9b:df:02'
option name 'winpc'
option dns '1'
will add a corresponding entry to /tmp/hosts/dhcp:
192.168.0.10 winpc.lan
This keeps the hostname/IP/MAC in a single place, for easy maintenance.
Related: ticket #13854 reports an regression involving missing PTR
records when using "config domain" to define static DNS entries for
individual hosts. However, per Simon Kelley[1], the --address feature
used by "config domain" was never intended to generate DNS A records for
hosts. It would probably be better for the reporter to apply this patch,
and then use "config host" sections instead of "config domain" sections.
[1] http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2008q4/002498.html
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
SVN-Revision: 40799
Diffstat (limited to 'package')
| -rw-r--r-- | package/network/services/dnsmasq/files/dnsmasq.init | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init index b5fb58c..f7edb28 100644 --- a/package/network/services/dnsmasq/files/dnsmasq.init +++ b/package/network/services/dnsmasq/files/dnsmasq.init @@ -13,6 +13,7 @@ ADD_LOCAL_DOMAIN=1 ADD_LOCAL_HOSTNAME=1 CONFIGFILE="/var/etc/dnsmasq.conf" +HOSTFILE="/tmp/hosts/dhcp" xappend() { local value="$1" @@ -300,6 +301,11 @@ dhcp_host_add() { [ "$broadcast" = "0" ] && broadcast= xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}" + + config_get_bool dns "$cfg" dns 0 + [ "$dns" = "1" ] && { + echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE + } } dhcp_tag_add() { @@ -528,6 +534,7 @@ start_service() { mkdir -p $(dirname $CONFIGFILE) echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE + echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE # if we did this last, we could override auto-generated config [ -f /etc/dnsmasq.conf ] && { |