Fix compiler warning.

it was introduced by commit 08933475ab

Signed-off-by: Martin Schiller <ms@dev.tdt.de>

CHANGELOG

@@ -64,6 +64,10 @@ version 2.80
 	now always forward, and never answer from the cache. This
 	allows "dig +trace" command to work. 
 	
+	Include in the example config file a formulation which
+	stops DHCP clients from claiming the DNS name "wpad".
+	This is a fix for the CERT Vulnerability VU#598349.
+
 	
 version 2.79
 	Fix parsing of CNAME arguments, which are confused by extra spaces.

dnsmasq.conf.example

@@ -672,3 +672,8 @@
 
 # Include all files in a directory which end in .conf
 #conf-dir=/etc/dnsmasq.d/,*.conf
+
+# If a DHCP client claims that its name is "wpad", ignore that.
+# This fixes a security hole. see CERT Vulnerability VU#598349
+#dhcp-name-match=set:wpad-ignore,wpad
+#dhcp-ignore-names=tag:wpad-ignore

man/dnsmasq.8

@@ -231,7 +231,7 @@ options always override the others. The comments about interface labels for
 .B --listen-address
 apply here.
 .TP
-.B --auth-server=<domain>,<interface>|<ip-address>
+.B --auth-server=<domain>,[<interface>|<ip-address>...]
 Enable DNS authoritative mode for queries arriving at an interface or address. Note that the interface or address
 need not be mentioned in 
 .B --interface
@@ -244,7 +244,7 @@ specified interface. The <domain> is the "glue record". It should
 resolve in the global DNS to an A and/or AAAA record which points to
 the address dnsmasq is listening on. When an interface is specified,
 it may be qualified with "/4" or "/6" to specify only the IPv4 or IPv6
-addresses associated with the interface.
+addresses associated with the interface. Since any defined authoritative zones are also available as part of the normal recusive DNS service supplied by dnsmasq, it can make sense to have an --auth-server declaration with no interfaces or address, but simply specifying the glue record. 
 .TP
 .B --local-service
 Accept DNS queries only from hosts whose address is on a local subnet,
@@ -827,7 +827,8 @@ authoritative zones as dnsmasq.
 .B --auth-peer=<ip-address>[,<ip-address>[,<ip-address>...]]
 Specify the addresses of secondary servers which are allowed to
 initiate zone transfer (AXFR) requests for zones for which dnsmasq is
-authoritative. If this option is not given, then AXFR requests will be
+authoritative. If this option is not given but --auth-sec-servers is,
+then AXFR requests will be
 accepted from any secondary. Specifying
 .B --auth-peer
 without

po/de.po

@@ -9,18 +9,18 @@
 # Simon Kelley <simon@thekelleys.org.uk>, 2005.
 msgid ""
 msgstr ""
-"Project-Id-Version: dnsmasq 2.77\n"
+"Project-Id-Version: dnsmasq 2.80\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2009-06-18 12:24+0100\n"
-"PO-Revision-Date: 2017-07-17 18:30+0100\n"
+"PO-Revision-Date: 2018-09-29 00:13+0200\n"
-"Last-Translator: Conrad Kostecki <ck@conrad-kostecki.de>\n"
+"Last-Translator: Conrad Kostecki <conrad@kostecki.com>\n"
 "Language-Team: German <de@li.org>\n"
 "Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
-"X-Generator: Poedit 2.0.1\n"
+"X-Generator: Poedit 2.1.1\n"
 "X-Poedit-SourceCharset: UTF-8\n"
 
 #: cache.c:518
@@ -150,7 +150,7 @@ msgstr "Konfigurationsdatei festlegen (Voreinstellung: %s)."
 
 #: option.c:350
 msgid "Do NOT fork into the background: run in debug mode."
-msgstr "NICHT in den Hintergrund gehen: Betrieb im Debug-Modus"
+msgstr "NICHT in den Hintergrund gehen: Betrieb im Debug-Modus."
 
 #: option.c:351
 msgid "Do NOT forward queries with no domain part."
@@ -166,12 +166,12 @@ msgstr "Erweitere einfache Namen in /etc/hosts mit der Domänen-Endung."
 
 #: option.c:354
 msgid "Don't forward spurious DNS requests from Windows hosts."
-msgstr "'unechte' DNS-Anfragen von Windows-Rechnern nicht weiterleiten"
+msgstr "'unechte' DNS-Anfragen von Windows-Rechnern nicht weiterleiten."
 
 # @Simon: I'm a bit unsure about "spurious"
 #: option.c:355
 msgid "Enable DHCP in the range given with lease duration."
-msgstr "DHCP für angegebenen Bereich und Dauer einschalten"
+msgstr "DHCP für angegebenen Bereich und Dauer einschalten."
 
 #: option.c:356
 #, c-format
@@ -314,7 +314,7 @@ msgstr "Ausgehenden Port erzwingen für DNS-Anfragen an vorgelagerte Server."
 
 #: option.c:389
 msgid "Do NOT read resolv.conf."
-msgstr "resolv.conf NICHT lesen."
+msgstr "Die resolv.conf NICHT lesen."
 
 #: option.c:390
 #, c-format
@@ -376,7 +376,7 @@ msgstr "DHCP-\"vendor class\" auf Marke abbilden."
 
 #: option.c:404
 msgid "Display dnsmasq version and copyright information."
-msgstr "dnsmasq-Version und Urheberrecht anzeigen."
+msgstr "DNSMasq-Version und Urheberrecht anzeigen."
 
 #: option.c:405
 msgid "Translate IPv4 addresses from upstream servers."
@@ -504,9 +504,8 @@ msgid "Export files by TFTP only from the specified subtree."
 msgstr "Nur vom festgelegten Unterbaum Dateien per TFTP exportieren."
 
 #: option.c:435
-#, fuzzy
 msgid "Add client IP or hardware address to tftp-root."
-msgstr "IP-Adresse des Klienten an tftp-root anhängen."
+msgstr "IP-Adresse oder Hardware-Adresse des Klienten an tftp-root anhängen."
 
 #: option.c:436
 msgid "Allow access only to files owned by the user running dnsmasq."
@@ -517,9 +516,9 @@ msgid "Do not terminate the service if TFTP directories are inaccessible."
 msgstr "Der Dienst sollte nicht beendet werden, wenn die TFTP-Verzeichnisse nicht zugreifbar sind."
 
 #: option.c:438
-#, fuzzy, c-format
+#, c-format
 msgid "Maximum number of concurrent TFTP transfers (defaults to %s)."
-msgstr "Höchstzahl nebenläufiger TFTP-Übertragungen (%s voreingestellt)."
+msgstr "Maximale Anzahl gleichzeitiger TFTP-Übertragungen (%s voreingestellt)."
 
 #: option.c:439
 msgid "Maximum MTU to use for TFTP transfers."
@@ -675,7 +674,6 @@ msgid "Set TTL for authoritative replies"
 msgstr "Setzte TTL für autoritative Antworten"
 
 #: option.c:477
-#, fuzzy
 msgid "Set authoritative zone information"
 msgstr "Setze autoritative Zoneninformationen"
 
@@ -724,9 +722,8 @@ msgid "Specify DHCPv6 prefix class"
 msgstr "Spezifiziere DHCPv6 Prefix Klasse"
 
 #: option.c:491
-#, fuzzy
 msgid "Set MTU, priority, resend-interval and router-lifetime"
-msgstr "Setze Priorität, Intervall des erneuten Sendens und Router Lebenszeit"
+msgstr "Setze MTU, Priorität, Sendewiederholungsintervall und Router-Lebensdauer"
 
 #: option.c:492
 msgid "Do not log routine DHCP."
@@ -758,7 +755,7 @@ msgstr "Setzte TTL in DNS-Antworten mit DHCP-abgeleiteten Adressen."
 
 #: option.c:499
 msgid "Delay DHCP replies for at least number of seconds."
-msgstr ""
+msgstr "Verzögere DHCP-Antworten für mindestens Anzahl von Sekunden."
 
 #: option.c:703
 #, c-format
@@ -781,7 +778,7 @@ msgstr "Gültige Optionen sind:\n"
 
 #: option.c:754 option.c:868
 msgid "bad address"
-msgstr "Fehlerhafte Adresse."
+msgstr "Fehlerhafte Adresse"
 
 #: option.c:779 option.c:783
 msgid "bad port"
@@ -793,7 +790,7 @@ msgstr "Schnittstellenbindung nicht unterstützt"
 
 #: option.c:821 option.c:856
 msgid "interface can only be specified once"
-msgstr ""
+msgstr "Schnittstelle kann nur einmal angegeben werden"
 
 #: option.c:835 option.c:3809
 msgid "bad interface name"
@@ -960,7 +957,7 @@ msgstr "Fehlerhafte DHCP-Proxy-Adresse"
 
 #: option.c:3704
 msgid "Bad dhcp-relay"
-msgstr "unzulässiger dhcp-relay"
+msgstr "Uunzulässiger dhcp-relay"
 
 #: option.c:3745
 msgid "bad RA-params"
@@ -1016,7 +1013,7 @@ msgstr "unzulässige Wichtung"
 
 #: option.c:4073
 msgid "Bad host-record"
-msgstr "unzulässiger host-record"
+msgstr "Unzulässiger host-record"
 
 #: option.c:4097
 msgid "Bad name in host-record"
@@ -1123,7 +1120,7 @@ msgstr "unzulässige Optionen auf der Befehlszeile: %s"
 #: option.c:4818
 #, c-format
 msgid "CNAME loop involving %s"
-msgstr ""
+msgstr "CNAME-Schleife mit %s"
 
 #: option.c:4854
 #, c-format
@@ -1178,7 +1175,7 @@ msgstr "möglichen DNS-Rebind-Angriff entdeckt: %s"
 #: forward.c:870
 #, c-format
 msgid "reducing DNS packet size for nameserver %s to %d"
-msgstr ""
+msgstr "Reduziere der DNS-Paketgröße für Nameserver %s auf %d"
 
 #: forward.c:1266 forward.c:1704
 msgid "Ignoring query from non-local network"
@@ -1204,9 +1201,9 @@ msgid "LOUD WARNING: use --bind-dynamic rather than --bind-interfaces to avoid D
 msgstr "LOUD WARNING: Es sollte --bind-dynamic anstatt --bind-interfaces benutzt werden, um DNS-Verstärkungsangriffe auf diesen Schnittstellen zu unterbinden"
 
 #: network.c:1047
-#, fuzzy, c-format
+#, c-format
 msgid "warning: using interface %s instead"
-msgstr "Warnung: %s nicht zugreifbar"
+msgstr "Warnung: Benutzer stattdessen Schnittstelle %s"
 
 #: network.c:1056
 #, c-format
@@ -1289,9 +1286,9 @@ msgid "using nameserver %s#%d"
 msgstr "Benutze Namensserver %s#%d"
 
 #: network.c:1591
-#, fuzzy, c-format
+#, c-format
 msgid "using %d more local addresses"
-msgstr "Benutze %d mehr Namensserver"
+msgstr "Benutze %d mehr lokale Adressen"
 
 #: network.c:1593
 #, c-format
@@ -1425,9 +1422,8 @@ msgid "DNSSEC validation enabled"
 msgstr "DNSSEC-Validierung aktiviert"
 
 #: dnsmasq.c:775
-#, fuzzy
 msgid "DNSSEC signature timestamps not checked until receipt of SIGINT"
-msgstr "DNSSEC Signatur-Zeitstempel werden erst ab dem ersten Neuladen des Caches überprüft"
+msgstr "DNSSEC-Signatur-Zeitstempel werden erst nach Empfang von SIGINT überprüft"
 
 #: dnsmasq.c:778
 msgid "DNSSEC signature timestamps not checked until system time valid"
@@ -1549,7 +1545,7 @@ msgstr "Das TFTP-Verzeichnis %s ist nicht zugreifbar: %s"
 #: dnsmasq.c:1242
 #, c-format
 msgid "cannot create timestamp file %s: %s"
-msgstr "Kann keine timestamp-Datei %s erzeugen: %s "
+msgstr "Kann keine Zeitstempel-Datei %s erzeugen: %s"
 
 #: dnsmasq.c:1326
 #, c-format
@@ -1671,12 +1667,12 @@ msgstr "kann Lease-Datei %s nicht öffnen: %s"
 #: lease.c:175
 #, c-format
 msgid "failed to parse lease database, invalid line: %s %s %s %s ..."
-msgstr ""
+msgstr "Fehler beim Parsen der Lease-Datenbank, ungültige Zeile: %s %s %s %s ..."
 
 #: lease.c:180
-#, fuzzy, c-format
+#, c-format
 msgid "failed to read lease file %s: %s"
-msgstr "konnte %s nicht lesen: %s"
+msgstr "konnte Lease-Datei %s nicht lesen: %s"
 
 #: lease.c:196
 #, c-format
@@ -1874,7 +1870,7 @@ msgstr "Kann RFC3925-Option nicht senden: zu viele Optionen für Unternehmen Nr.
 #: rfc2131.c:2650
 #, c-format
 msgid "%u reply delay: %d"
-msgstr ""
+msgstr "%u Antwortverzögerung: %d"
 
 #: netlink.c:77
 #, c-format
@@ -2174,14 +2170,13 @@ msgid "failed to create IPset control socket: %s"
 msgstr "konnte IPset-Kontroll-Socket nicht erzeugen: %s"
 
 #: ipset.c:233
-#, fuzzy, c-format
+#, c-format
 msgid "failed to update ipset %s: %s"
-msgstr "kann die mtime nicht auf %s aktualisieren: %s"
+msgstr "Aktualisierung von ipset %s fehlgeschlagen: %s"
 
 #: dnssec.c:208
-#, fuzzy
 msgid "system time considered valid, now checking DNSSEC signature timestamps."
-msgstr "Prüfe jetzt DNSSEC Signatur-Zeitstempel"
+msgstr "Prüfe jetzt DNSSEC Signatur-Zeitstempel."
 
 #: blockdata.c:58
 #, c-format
@@ -2209,9 +2204,9 @@ msgid "error: cannot strlcpy table name %s"
 msgstr "Fehler: Kann den Tabellennamen %s nicht strlcpy"
 
 #: tables.c:101
-#, fuzzy, c-format
+#, c-format
 msgid "IPset: error:%s"
-msgstr "DBus-Fehler: %s"
+msgstr "IPset: Fehler: %s"
 
 #: tables.c:108
 msgid "info: table created"

src/dnsmasq.c

@@ -216,7 +216,7 @@ int main (int argc, char **argv)
 #endif
 
 #ifndef HAVE_AUTH
-  if (daemon->authserver || daemon->auth_zones)
+  if (daemon->auth_zones)
     die(_("authoritative DNS not available: set HAVE_AUTH in src/config.h"), NULL, EC_BADCONF);
 #endif
 
@@ -235,13 +235,20 @@ int main (int argc, char **argv)
 
   now = dnsmasq_time();
 
+  if (daemon->auth_zones)
+    {
+      if (!daemon->authserver)
+	die(_("--auth-server required when an auth zone is defined."), NULL, EC_BADCONF);
+
       /* Create a serial at startup if not configured. */
-  if (daemon->auth_zones && daemon->soa_sn == 0)
 #ifdef HAVE_BROKEN_RTC
+      if (daemon->soa_sn == 0)
 	die(_("zone serial must be configured in --auth-soa"), NULL, EC_BADCONF);
 #else
+      if (daemon->soa_sn == 0)
 	daemon->soa_sn = now;
 #endif
+    }
   
 #ifdef HAVE_DHCP6
   if (daemon->dhcp6)

src/dnsmasq.h

@@ -1227,7 +1227,7 @@ int in_zone(struct auth_zone *zone, char *name, char **cut);
 #endif
 
 /* dnssec.c */
-size_t dnssec_generate_query(struct dns_header *header, unsigned char *end, char *name, int class, int type, union mysockaddr *addr, int edns_pktsz);
+size_t dnssec_generate_query(struct dns_header *header, unsigned char *end, char *name, int class, int type, int edns_pktsz);
 int dnssec_validate_by_ds(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int class);
 int dnssec_validate_ds(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int class);
 int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int *class,

src/dnssec.c

@@ -1761,7 +1761,7 @@ int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, ch
 
   unsigned char *ans_start, *p1, *p2;
   int type1, class1, rdlen1 = 0, type2, class2, rdlen2, qclass, qtype, targetidx;
-  int i, j, rc;
+  int i, j, rc = STAT_INSECURE;
   int secure = STAT_SECURE;
 
   /* extend rr_status if necessary */
@@ -2026,19 +2026,11 @@ int dnskey_keytag(int alg, int flags, unsigned char *key, int keylen)
 }
 
 size_t dnssec_generate_query(struct dns_header *header, unsigned char *end, char *name, int class, 
-			     int type, union mysockaddr *addr, int edns_pktsz)
+			     int type, int edns_pktsz)
 {
   unsigned char *p;
-  char *types = querystr("dnssec-query", type);
   size_t ret;
 
-  if (addr->sa.sa_family == AF_INET) 
-    log_query(F_NOEXTRA | F_DNSSEC | F_IPV4, name, (struct all_addr *)&addr->in.sin_addr, types);
-#ifdef HAVE_IPV6
-  else
-    log_query(F_NOEXTRA | F_DNSSEC | F_IPV6, name, (struct all_addr *)&addr->in6.sin6_addr, types);
-#endif
-  
   header->qdcount = htons(1);
   header->ancount = htons(0);
   header->nscount = htons(0);

src/forward.c

@@ -1058,7 +1058,7 @@ void reply_query(int fd, int family, time_t now)
 		    status = STAT_ABANDONED;
 		  else
 		    {
-		      int fd, type = SERV_DO_DNSSEC;
+		      int querytype, fd, type = SERV_DO_DNSSEC;
 		      struct frec *next = new->next;
 		      char *domain;
 		      
@@ -1111,15 +1111,26 @@ void reply_query(int fd, int family, time_t now)
 		      if (status == STAT_NEED_KEY)
 			{
 			  new->flags |= FREC_DNSKEY_QUERY; 
-			  nn = dnssec_generate_query(header, ((unsigned char *) header) + server->edns_pktsz,
+			  querytype = T_DNSKEY;
-						     daemon->keyname, forward->class, T_DNSKEY, &server->addr, server->edns_pktsz);
 			}
 		      else 
 			{
 			  new->flags |= FREC_DS_QUERY;
-			  nn = dnssec_generate_query(header,((unsigned char *) header) + server->edns_pktsz,
+			  querytype = T_DS;
-						     daemon->keyname, forward->class, T_DS, &server->addr, server->edns_pktsz);
 			}
+
+		      nn = dnssec_generate_query(header,((unsigned char *) header) + server->edns_pktsz,
+						 daemon->keyname, forward->class, querytype, server->edns_pktsz);
+
+		      if (server->addr.sa.sa_family == AF_INET) 
+			log_query(F_NOEXTRA | F_DNSSEC | F_IPV4, daemon->keyname, (struct all_addr *)&(server->addr.in.sin_addr),
+				  querystr("dnssec-query", querytype));
+#ifdef HAVE_IPV6
+		      else
+			log_query(F_NOEXTRA | F_DNSSEC | F_IPV6, daemon->keyname, (struct all_addr *)&(server->addr.in6.sin6_addr),
+				  querystr("dnssec-query", querytype));
+#endif
+  
 		      if ((hash = hash_questions(header, nn, daemon->namebuff)))
 			memcpy(new->hash, hash, HASH_SIZE);
 		      new->new_id = get_id();
@@ -1655,7 +1666,7 @@ static int tcp_key_recurse(time_t now, int status, struct dns_header *header, si
 	}
 
       m = dnssec_generate_query(new_header, ((unsigned char *) new_header) + 65536, keyname, class, 
-				new_status == STAT_NEED_KEY ? T_DNSKEY : T_DS, &server->addr, server->edns_pktsz);
+				new_status == STAT_NEED_KEY ? T_DNSKEY : T_DS, server->edns_pktsz);
       
       *length = htons(m);
 
@@ -1729,6 +1740,16 @@ static int tcp_key_recurse(time_t now, int status, struct dns_header *header, si
 		continue;
 	    }
 
+
+	  if (server->addr.sa.sa_family == AF_INET) 
+	    log_query(F_NOEXTRA | F_DNSSEC | F_IPV4, keyname, (struct all_addr *)&(server->addr.in.sin_addr),
+		      querystr("dnssec-query", new_status == STAT_NEED_KEY ? T_DNSKEY : T_DS));
+#ifdef HAVE_IPV6
+	  else
+	    log_query(F_NOEXTRA | F_DNSSEC | F_IPV6, keyname, (struct all_addr *)&(server->addr.in6.sin6_addr),
+		      querystr("dnssec-query", new_status == STAT_NEED_KEY ? T_DNSKEY : T_DS));
+#endif
+	  
 	  server->flags |= SERV_GOT_TCP;
 	  
 	  m = (c1 << 8) | c2;

src/option.c

@@ -1902,12 +1902,12 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
       }
       
     case LOPT_AUTHSERV: /* --auth-server */
-      if (!(comma = split(arg)))
+      comma = split(arg);
-	ret_err(gen_err);
       
       daemon->authserver = opt_string_alloc(arg);
-      arg = comma;
+      
-      do {
+      while ((arg = comma))
+	{
 	  struct iname *new = opt_malloc(sizeof(struct iname));
 	  comma = split(arg);
 	  new->name = NULL;
@@ -1937,9 +1937,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	    }
 	  new->next = daemon->authinterface;
 	  daemon->authinterface = new;
-	
+	};
-	arg = comma;
-      } while (arg);
             
       break;
 

src/rfc2131.c

@@ -700,15 +700,48 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	client_hostname = daemon->dhcp_buff;
     }
 
-  if (client_hostname)
+  if (client_hostname && option_bool(OPT_LOG_OPTS))
-    {
-      struct dhcp_match_name *m;
-      size_t nl = strlen(client_hostname); 
-      
-      if (option_bool(OPT_LOG_OPTS))
     my_syslog(MS_DHCP | LOG_INFO, _("%u client provides name: %s"), ntohl(mess->xid), client_hostname);
 
   
+  if (have_config(config, CONFIG_NAME))
+    {
+      hostname = config->hostname;
+      domain = config->domain;
+      hostname_auth = 1;
+      /* be careful not to send an OFFER with a hostname not matching the DISCOVER. */
+      if (fqdn_flags != 0 || !client_hostname || hostname_isequal(hostname, client_hostname))
+        offer_hostname = hostname;
+    }
+  else if (client_hostname)
+    {
+      struct dhcp_match_name *m;
+      size_t nl;
+
+      domain = strip_hostname(client_hostname);
+      
+      if ((nl = strlen(client_hostname)) != 0)
+	{
+	  hostname = client_hostname;
+	  
+	  if (!config)
+	    {
+	      /* Search again now we have a hostname. 
+		 Only accept configs without CLID and HWADDR here, (they won't match)
+		 to avoid impersonation by name. */
+	      struct dhcp_config *new = find_config(daemon->dhcp_conf, context, NULL, 0,
+						    mess->chaddr, mess->hlen, 
+						    mess->htype, hostname);
+	      if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
+		{
+		  config = new;
+		  /* set "known" tag for known hosts */
+		  known_id.net = "known";
+		  known_id.next = netid;
+		  netid = &known_id;
+		}
+	    }
+
 	  for (m = daemon->dhcp_name_match; m; m = m->next)
 	    {
 	      size_t ml = strlen(m->name);
@@ -733,41 +766,6 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 		client_hostname[ml] = save;
 	    }
 	}
-  
-  if (have_config(config, CONFIG_NAME))
-    {
-      hostname = config->hostname;
-      domain = config->domain;
-      hostname_auth = 1;
-      /* be careful not to send an OFFER with a hostname not matching the DISCOVER. */
-      if (fqdn_flags != 0 || !client_hostname || hostname_isequal(hostname, client_hostname))
-        offer_hostname = hostname;
-    }
-  else if (client_hostname)
-    {
-      domain = strip_hostname(client_hostname);
-      
-      if (strlen(client_hostname) != 0)
-	{
-	  hostname = client_hostname;
-	  if (!config)
-	    {
-	      /* Search again now we have a hostname. 
-		 Only accept configs without CLID and HWADDR here, (they won't match)
-		 to avoid impersonation by name. */
-	      struct dhcp_config *new = find_config(daemon->dhcp_conf, context, NULL, 0,
-						    mess->chaddr, mess->hlen, 
-						    mess->htype, hostname);
-	      if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
-		{
-		  config = new;
-		  /* set "known" tag for known hosts */
-		  known_id.net = "known";
-		  known_id.next = netid;
-		  netid = &known_id;
-		}
-	    }
-	}
     }
   
   if (config)

src/rfc3315.c

@@ -496,11 +496,16 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	}
       else if (state->client_hostname)
 	{
+	  struct dhcp_match_name *m;
+	  size_t nl;
+
 	  state->domain = strip_hostname(state->client_hostname);
+	  nl = strlen(state->client_hostname);
 	  
 	  if (strlen(state->client_hostname) != 0)
 	    {
 	      state->hostname = state->client_hostname;
+	      
 	      if (!config)
 		{
 		  /* Search again now we have a hostname. 
@@ -510,6 +515,30 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 		  if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
 		    config = new;
 		}
+	      
+	      for (m = daemon->dhcp_name_match; m; m = m->next)
+		{
+		  size_t ml = strlen(m->name);
+		  char save = 0;
+		  
+		  if (nl < ml)
+		    continue;
+		  if (nl > ml)
+		    {
+		      save = state->client_hostname[ml];
+		      state->client_hostname[ml] = 0;
+		    }
+		  
+		  if (hostname_isequal(state->client_hostname, m->name) &&
+		      (save == 0 || m->wildcard))
+		    {
+		      m->netid->next = state->tags;
+		      state->tags = m->netid;
+		    }
+		  
+		  if (save != 0)
+		    state->client_hostname[ml] = save;
+		}
 	    }
 	}
     }

src/slaac.c

@@ -166,7 +166,8 @@ time_t periodic_slaac(time_t now, struct dhcp_lease *leases)
 	    
 	    if (sendto(daemon->icmp6fd, daemon->outpacket.iov_base, save_counter(-1), 0,
 		       (struct sockaddr *)&addr,  sizeof(addr)) == -1 &&
-		errno == EHOSTUNREACH)
+		errno == EHOSTUNREACH &&
+		slaac->backoff == 12)
 	      slaac->ping_time = 0; /* Give up */ 
 	    else
 	      {