@@ 0,0 1,60 @@ 
+import Protocols.DHCPv6;
+
+inherit .Generic;
+
+string preamble = "\n#\n# BEGIN DHCPv6_PD Managed segment\n#\n";
+string postamble = "\n#\n# END DHCPv6_PD Managed segment\n#\n";
+
+string ndpdconffile = "/etc/inet/ndpd.conf";
+
+string get_identifier() {
+//  if(file_stat("/etc/dhcp/duid"))
+//    return Stdio.read_file("/etc/dhcp/duid");
+//  else 
+  string uuid;
+  sscanf(Process.popen("ioreg -d2 -c IOPlatformExpertDevice | grep IOPlatformUUID"), "%*s = \"%s\"", uuid);
+  return uuid;
+}
+
+string get_command_segment(string conf) {
+  string seg;
+  sscanf(conf, "%*s" + preamble + "%s" + postamble + "%*s", seg);
+  return seg || "";
+}
+
+string remove_command_segment(string conf) {
+  string pre, post;
+  sscanf(conf, "%s" + preamble + "%*s" + postamble + "%s", pre, post);
+  return (pre||"") + (post||"");
+}
+
+void prefix_acquired(IA_PDOption allocation, int has_changed, IA_PDOption old_allocation) {
+werror("prefix_acquired(%O, %O, %O)\n", allocation, has_changed, old_allocation);
+
+// TODO we need to come up with a better mechanism for writing configuration.
+   string conf = Stdio.read_file(ndpdconffile) || "";
+   string cs = get_command_segment(conf);
+werror("Old conf: %O\n", cs);
+   string ncs="\nprefix " + allocation->address + "/" + allocation->prefix + " " + config->downstream_interface + " AdvOnLinkFlag on AdvAutonomousFlag on AdvPreferredLifetime " + allocation->preferred_lifetime + " AdvValidLifetime " + allocation->valid_lifetime + "\n";
+   ncs += "\nif " + config->downstream_interface + " AdvSendAdvertisements on\n";
+
+
+werror("new conf: %O\n", ncs);
+   if(ncs != cs) {
+     conf = remove_command_segment(conf);
+     conf += (preamble + ncs + postamble);
+     werror("conf file: %O\n", conf);
+     Stdio.write_file(ndpdconffile, conf);
+   //  Process.popen("/usr/sbin/svcadm restart ndp");
+  }
+}
+
+void prefix_abandoned(IA_PDOption allocation) {
+  string conf = Stdio.read_file(ndpdconffile);
+  conf = remove_command_segment(conf);
+  werror("conf file: %O\n", conf);
+     Stdio.write_file(ndpdconffile, conf);
+   //  Process.popen("/usr/sbin/svcadm restart ndp");
+}
+
+

          

@@ 0,0 1,16 @@ 
+
+object get_module_for_system(mixed config) {
+
+  string system = Process.popen("uname -s");
+   
+  switch(String.trim_all_whites(system)) {
+    case "Darwin":
+      return SystemTypes.MacOS(config);
+      break;
+    case "SunOS":
+      return SystemTypes.SmartOS(config);
+      break;
+    default:
+      throw(Error.Generic("Don't have a system type for " + system + "\n"));
+  }
+}