zoneconf.in: Allow control over query access.

[zoneconf] / zoneconf.in

diff --git a/zoneconf.in b/zoneconf.in
index 7af2845..13c269d 100755 (executable)
--- a/zoneconf.in
+++ b/zoneconf.in
@@ -992,6 +992,7 @@ define-configuration-space zone ZONECFG {
   define-simple dir-mode 2775
   define-simple zone-file "%v/%z.zone"
   define-simple soa-format increment
+  define-simple allow-query nil
   define-list views *
   define-list sign-views {}
   define-list signzone-command \
@@ -1022,6 +1023,12 @@ define-configuration-space zone ZONECFG {
   }
 
   define primary {map} {
+    ## There's a grim hack here: a primary-address entry may have the form
+    ## REAL!FAKE.  If the REAL address is not a local address then this
+    ## is used as the master address; otherwise the FAKE address is used.
+    ## This is useful for inter-view updates of dynamic zones on the same
+    ## host.  I suggest abusing 127.0.0.0/8 addresses for this kind of
+    ## chicanery.
     if {[llength $map] % 2} {
       error "master map must have an even number of items"
     }
@@ -1141,13 +1148,28 @@ proc compute-zone-properties {view config} {
   if {[info exists zone(mapped-view)]} {
     foreach {outview hosts} $zone(master-map) {
       if {[string match $outview $zone(mapped-view)]} {
-       set zone(masters) $hosts
+       set masters {}
        set zone(config-type) slave
        foreach host $hosts {
-         if {[local-address-p $host]} {
+         set bang [string first "!" $host]
+         if {$bang >= 0} {
+           set after [string range $host [expr {$bang + 1}] end]
+           if {$bang} {
+             set before [string range $host 0 [expr {$bang - 1}]]
+           } else {
+             set before $after
+           }
+           if {[local-address-p $before]} {
+             set host $after
+           } else {
+             set host $before
+           }
+         } elseif {[local-address-p $host]} {
            set zone(config-type) master
          }
+         lappend masters $host
        }
+       set zone(masters) $masters
        break
       }
     }
@@ -1279,6 +1301,9 @@ proc write-zone-stanza {view chan config} {
       }
     }
   }
+  if {![string equal $zone(allow-query) nil]} {
+    puts $chan "\tallow-query {$zone(allow-query)};"
+  }
   puts $chan "};";
 }