Fix sporadic crash in find_mac() - hwlen must be zero for empty entries.

Thanks to Matthias Anfree for spotting this.

CHANGELOG

@@ -18,6 +18,10 @@ version 2.76
 	    that the same name is empty. Thanks to Edwin Török for
 	    the patch.
 
+	    Fix failure to correctly calculate cache-size when 
+	    reading a hosts-file fails. Thanks to André Glüpker 
+	    for the patch.
+
 	
 version 2.75
             Fix reversion on 2.74 which caused 100% CPU use when a 

Makefile

@@ -1,4 +1,4 @@
-# dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+# dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by

debian/copyright

@@ -1,4 +1,4 @@
-dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
 It was downloaded from: http://www.thekelleys.org.uk/dnsmasq/
 

man/dnsmasq.8

@@ -405,7 +405,10 @@ xxx.internal.thekelleys.org.uk at 192.168.1.1 then giving  the flag
 .B -S /internal.thekelleys.org.uk/192.168.1.1 
 will send all queries for
 internal machines to that nameserver, everything else will go to the
-servers in /etc/resolv.conf. An empty domain specification,
+servers in /etc/resolv.conf. DNSSEC validation is turned off for such
+private nameservers, UNLESS a
+.B --trust-anchor
+is specified for the domain in question. An empty domain specification,
 .B // 
 has the special meaning of "unqualified names only" ie names without any
 dots in them. A non-standard port may be specified as 

src/arp.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -110,7 +110,7 @@ static int filter_mac(int family, char *addrp, char *mac, size_t maclen, void *p
 /* If in lazy mode, we cache absence of ARP entries. */
 int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now)
 {
-  struct arp_record *arp, **up;
+  struct arp_record *arp, *tmp, **up;
   int updated = 0;
 
  again:
@@ -132,7 +132,7 @@ int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now)
 	  }
 #endif
 	
-	/* Only accept poitive entries unless in lazy mode. */
+	/* Only accept positive entries unless in lazy mode. */
 	if (arp->status != ARP_EMPTY || lazy || updated)
 	  {
 	    if (mac && arp->hwlen != 0)
@@ -148,22 +148,26 @@ int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now)
        last = now;
 
        /* Mark all non-negative entries */
-       for (arp = arps, up = &arps; arp; arp = arp->next)
+       for (arp = arps; arp; arp = arp->next)
 	 if (arp->status != ARP_EMPTY)
 	   arp->status = ARP_MARK;
        
        iface_enumerate(AF_UNSPEC, NULL, filter_mac);
        
        /* Remove all unconfirmed entries to old list. */
-       for (arp = arps, up = &arps; arp; arp = arp->next)
+       for (arp = arps, up = &arps; arp; arp = tmp)
-	 if (arp->status == ARP_MARK)
+	 {
-	   {
+	   tmp = arp->next;
-	     *up = arp->next;
+	   
-	     arp->next = old;
+	   if (arp->status == ARP_MARK)
-	     old = arp;
+	     {
-	   }
+	       *up = arp->next;
-	 else
+	       arp->next = old;
-	   up = &arp->next;
+	       old = arp;
+	     }
+	   else
+	     up = &arp->next;
+	 }
 
        goto again;
      }
@@ -184,6 +188,7 @@ int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now)
       arps = arp;
       arp->status = ARP_EMPTY;
       arp->family = addr->sa.sa_family;
+      arp->hwlen = 0;
 
       if (addr->sa.sa_family == AF_INET)
 	arp->addr.addr.addr4.s_addr = addr->in.sin_addr.s_addr;

src/auth.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/blockdata.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/bpf.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/cache.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -919,7 +919,7 @@ int read_hostsfile(char *filename, unsigned int index, int cache_size, struct cr
   if (!f)
     {
       my_syslog(LOG_ERR, _("failed to load names from %s: %s"), filename, strerror(errno));
-      return 0;
+      return cache_size;
     }
   
   eatspace(f);

src/config.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/conntrack.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dbus.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dhcp-common.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dhcp-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dhcp.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dhcp6-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dhcp6.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dns-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/dnsmasq.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -169,8 +169,16 @@ int main (int argc, char **argv)
   if (option_bool(OPT_DNSSEC_VALID))
     {
 #ifdef HAVE_DNSSEC
-      if (!daemon->ds)
+      struct ds_config *ds;
-	die(_("no trust anchors provided for DNSSEC"), NULL, EC_BADCONF);
+
+      /* Must have at least a root trust anchor, or the DNSSEC code
+	 can loop forever. */
+      for (ds = daemon->ds; ds; ds = ds->next)
+	if (ds->name[0] == 0)
+	  break;
+
+      if (!ds)
+	die(_("no root trust anchor provided for DNSSEC"), NULL, EC_BADCONF);
       
       if (daemon->cachesize < CACHESIZ)
 	die(_("cannot reduce cache size from default when DNSSEC enabled"), NULL, EC_BADCONF);
@@ -919,7 +927,10 @@ int main (int argc, char **argv)
       poll_listen(piperead, POLLIN);
 
 #ifdef HAVE_SCRIPT
+#    ifdef HAVE_DHCP
       while (helper_buf_empty() && do_script_run(now)); 
+#    endif
+
       while (helper_buf_empty() && do_arp_script_run());
 
 #    ifdef HAVE_TFTP
@@ -930,8 +941,11 @@ int main (int argc, char **argv)
 	poll_listen(daemon->helperfd, POLLOUT);
 #else
       /* need this for other side-effects */
+#    ifdef HAVE_DHCP
       while (do_script_run(now));
-      while (do_arp_script_run(now));
+#    endif
+
+      while (do_arp_script_run());
 
 #    ifdef HAVE_TFTP 
       while (do_tftp_script_run());
@@ -1312,7 +1326,7 @@ static void async_event(int pipe, time_t now)
 	  if (daemon->tcp_pids[i] != 0)
 	    kill(daemon->tcp_pids[i], SIGALRM);
 	
-#if defined(HAVE_SCRIPT)
+#if defined(HAVE_SCRIPT) && defined(HAVE_DHCP)
 	/* handle pending lease transitions */
 	if (daemon->helperfd != -1)
 	  {

src/dnsmasq.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
  
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -14,7 +14,7 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#define COPYRIGHT "Copyright (c) 2000-2015 Simon Kelley" 
+#define COPYRIGHT "Copyright (c) 2000-2016 Simon Kelley"
 
 #ifndef NO_LARGEFILE
 /* Ensure we can use files >2GB (log files may grow this big) */
@@ -477,6 +477,7 @@ union mysockaddr {
 #define SERV_NO_REBIND      2048  /* inhibit dns-rebind protection */
 #define SERV_FROM_FILE      4096  /* read from --servers-file */
 #define SERV_LOOP           8192  /* server causes forwarding loop */
+#define SERV_DO_DNSSEC     16384  /* Validate DNSSEC when using this server */
 
 struct serverfd {
   int fd;

src/dnssec.c

@@ -1,5 +1,5 @@
 /* dnssec.c is Copyright (c) 2012 Giovanni Bajo <rasky@develer.com>
-           and Copyright (c) 2012-2015 Simon Kelley
+           and Copyright (c) 2012-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -1873,10 +1873,27 @@ static int prove_non_existence(struct dns_header *header, size_t plen, char *key
 */
 static int zone_status(char *name, int class, char *keyname, time_t now)
 {
-  int name_start = strlen(name);
+  int name_start = strlen(name); /* for when TA is root */
   struct crec *crecp;
   char *p;
 
+  /* First, work towards the root, looking for a trust anchor.
+     This can either be one configured, or one previously cached.
+     We can assume, if we don't find one first, that there is
+     a trust anchor at the root. */
+  for (p = name; p; p = strchr(p, '.'))
+    {
+      if (*p == '.')
+	p++;
+
+      if (cache_find_by_name(NULL, p, now, F_DS))
+	{
+	  name_start = p - name;
+	  break;
+	}
+    }
+
+  /* Now work away from the trust anchor */
   while (1)
     {
       strcpy(keyname, &name[name_start]);

src/domain.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/edns0.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/forward.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -106,8 +106,8 @@ int send_from(int fd, int nowild, char *packet, size_t len,
   return 1;
 }
           
-static unsigned int search_servers(time_t now, struct all_addr **addrpp, 
+static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigned int qtype,
-				     unsigned int qtype, char *qdomain, int *type, char **domain, int *norebind)
+				   char *qdomain, int *type, char **domain, int *norebind)
 			      
 {
   /* If the query ends in the domain in one of our servers, set
@@ -151,7 +151,7 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp,
 	    hostname_isequal(matchstart, serv->domain) &&
 	    (domainlen == 0 || namelen == domainlen || *(matchstart-1) == '.' ))
 	  {
-	    if (serv->flags & SERV_NO_REBIND)	
+	    if ((serv->flags & SERV_NO_REBIND) && norebind)	
 	      *norebind = 1;
 	    else
 	      {
@@ -175,7 +175,7 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp,
 		
 		if (domainlen >= matchlen)
 		  {
-		    *type = serv->flags & (SERV_HAS_DOMAIN | SERV_USE_RESOLV | SERV_NO_REBIND);
+		    *type = serv->flags & (SERV_HAS_DOMAIN | SERV_USE_RESOLV | SERV_NO_REBIND | SERV_DO_DNSSEC);
 		    *domain = serv->domain;
 		    matchlen = domainlen;
 		    if (serv->flags & SERV_NO_ADDR)
@@ -233,12 +233,13 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
 			 struct frec *forward, int ad_reqd, int do_bit)
 {
   char *domain = NULL;
-  int type = 0, norebind = 0;
+  int type = SERV_DO_DNSSEC, norebind = 0;
   struct all_addr *addrp = NULL;
   unsigned int flags = 0;
   struct server *start = NULL;
 #ifdef HAVE_DNSSEC
   void *hash = hash_questions(header, plen, daemon->namebuff);
+  int do_dnssec = 0;
 #else
   unsigned int crc = questions_crc(header, plen, daemon->namebuff);
   void *hash = &crc;
@@ -315,6 +316,10 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
 	  daemon->last_server = NULL;
 	}
       type = forward->sentto->flags & SERV_TYPE;
+#ifdef HAVE_DNSSEC
+      do_dnssec = forward->sentto->flags & SERV_DO_DNSSEC;
+#endif
+
       if (!(start = forward->sentto->next))
 	start = daemon->servers; /* at end of list, recycle */
       header->id = htons(forward->new_id);
@@ -324,6 +329,11 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
       if (gotname)
 	flags = search_servers(now, &addrp, gotname, daemon->namebuff, &type, &domain, &norebind);
       
+#ifdef HAVE_DNSSEC
+      do_dnssec = type & SERV_DO_DNSSEC;
+      type &= ~SERV_DO_DNSSEC;
+#endif      
+
       if (!flags && !(forward = get_new_frec(now, NULL, 0)))
 	/* table full - server failure. */
 	flags = F_NEG;
@@ -406,7 +416,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
 	}
       
 #ifdef HAVE_DNSSEC
-      if (option_bool(OPT_DNSSEC_VALID))
+      if (option_bool(OPT_DNSSEC_VALID) && do_dnssec)
 	{
 	  size_t new = add_do_bit(header, plen, ((unsigned char *) header) + PACKETSZ);
 	 
@@ -634,7 +644,7 @@ static size_t process_reply(struct dns_header *header, time_t now, struct server
     return resize_packet(header, n, pheader, plen);
   
   /* Complain loudly if the upstream server is non-recursive. */
-  if (!(header->hb4 & HB4_RA) && RCODE(header) == NOERROR && ntohs(header->ancount) == 0 &&
+  if (!(header->hb4 & HB4_RA) && RCODE(header) == NOERROR &&
       server && !(server->flags & SERV_WARNED_RECURSIVE))
     {
       prettyprint_addr(&server->addr, daemon->namebuff);
@@ -800,9 +810,9 @@ void reply_query(int fd, int family, time_t now)
 	    {
 	      header->hb3 &= ~(HB3_QR | HB3_AA | HB3_TC);
 	      header->hb4 &= ~(HB4_RA | HB4_RCODE | HB4_CD | HB4_AD);
-	      if (forward->flags |= FREC_CHECKING_DISABLED)
+	      if (forward->flags & FREC_CHECKING_DISABLED)
 		header->hb4 |= HB4_CD;
-	      if (forward->flags |= FREC_AD_QUESTION)
+	      if (forward->flags & FREC_AD_QUESTION)
 		header->hb4 |= HB4_AD;
 	      if (forward->flags & FREC_DO_QUESTION)
 		add_do_bit(header, nn,  (unsigned char *)pheader + plen);
@@ -858,7 +868,8 @@ void reply_query(int fd, int family, time_t now)
 	no_cache_dnssec = 1;
       
 #ifdef HAVE_DNSSEC
-      if (server && option_bool(OPT_DNSSEC_VALID) && !(forward->flags & FREC_CHECKING_DISABLED))
+      if (server && (server->flags & SERV_DO_DNSSEC) && 
+	  option_bool(OPT_DNSSEC_VALID) && !(forward->flags & FREC_CHECKING_DISABLED))
 	{
 	  int status = 0;
 
@@ -912,12 +923,40 @@ void reply_query(int fd, int family, time_t now)
 		    status = STAT_ABANDONED;
 		  else
 		    {
-		      int fd;
+		      int fd, type;
 		      struct frec *next = new->next;
+		      char *domain;
+		      
 		      *new = *forward; /* copy everything, then overwrite */
 		      new->next = next;
 		      new->blocking_query = NULL;
+
+		      /* Find server to forward to. This will normally be the 
+			 same as for the original query, but may be another if
+			 servers for domains are involved. */		      
+		      if (search_servers(now, NULL, F_QUERY, daemon->keyname, &type, &domain, NULL) == 0)
+			{
+			   struct server *start = server;
+			   type &= ~SERV_DO_DNSSEC;
+			   
+			   while (1)
+			     {
+			       if (type == (start->flags & SERV_TYPE) &&
+				   (type != SERV_HAS_DOMAIN || hostname_isequal(domain, start->domain)) &&
+				   !(start->flags & (SERV_LITERAL_ADDRESS | SERV_LOOP)))
+				 {
+				   server = start;
+				   break;
+				 }
+			       
+			       if (!(start = start->next))
+				 start = daemon->servers;
+			       if (start == server)
+				 break;
+			     }
+			}
 		      new->sentto = server;
+
 		      new->rfd4 = NULL;
 #ifdef HAVE_IPV6
 		      new->rfd6 = NULL;
@@ -1639,6 +1678,10 @@ unsigned char *tcp_request(int confd, time_t now,
 	      if (gotname)
 		flags = search_servers(now, &addrp, gotname, daemon->namebuff, &type, &domain, &norebind);
 	      
+#ifdef HAVE_DNSSEC
+	      type &= ~SERV_DO_DNSSEC;
+#endif
+	      
 	      if (type != 0  || option_bool(OPT_ORDER) || !daemon->last_server)
 		last_server = daemon->servers;
 	      else
@@ -1710,7 +1753,7 @@ unsigned char *tcp_request(int confd, time_t now,
 			    }
 			  
 #ifdef HAVE_DNSSEC
-			  if (option_bool(OPT_DNSSEC_VALID))
+			  if (option_bool(OPT_DNSSEC_VALID) && (last_server->flags & SERV_DO_DNSSEC))
 			    {
 			      new_size = add_do_bit(header, size, ((unsigned char *) header) + 65536);
 			      
@@ -1756,7 +1799,7 @@ unsigned char *tcp_request(int confd, time_t now,
 #endif 
 
 #ifdef HAVE_DNSSEC
-		      if (option_bool(OPT_DNSSEC_VALID) && !checking_disabled)
+		      if (option_bool(OPT_DNSSEC_VALID) && !checking_disabled && (last_server->flags & SERV_DO_DNSSEC))
 			{
 			  int keycount = DNSSEC_WORK; /* Limit to number of DNSSEC questions, to catch loops and avoid filling cache. */
 			  int status = tcp_key_recurse(now, STAT_OK, header, m, 0, daemon->namebuff, daemon->keyname, last_server, &keycount);

src/helper.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/inotify.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
  
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/ip6addr.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/lease.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/log.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/loop.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/netlink.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/network.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -1430,10 +1430,41 @@ void check_servers(void)
   if (!option_bool(OPT_NOWILD))
     enumerate_interfaces(0);
   
+#ifdef HAVE_DNSSEC
+ /* Disable DNSSEC validation when using server=/domain/.... servers
+    unless there's a configured trust anchor. */
+  for (serv = daemon->servers; serv; serv = serv->next)
+    serv->flags |= SERV_DO_DNSSEC;
+#endif
+
   for (serv = daemon->servers; serv; serv = serv->next)
     {
-       if (!(serv->flags & (SERV_LITERAL_ADDRESS | SERV_NO_ADDR | SERV_USE_RESOLV | SERV_NO_REBIND)))
+      if (!(serv->flags & (SERV_LITERAL_ADDRESS | SERV_NO_ADDR | SERV_USE_RESOLV | SERV_NO_REBIND)))
 	{
+#ifdef HAVE_DNSSEC
+	  if (option_bool(OPT_DNSSEC_VALID))
+	    { 
+	      if (serv->flags & SERV_HAS_DOMAIN)
+		{
+		  struct ds_config *ds;
+		  char *domain = serv->domain;
+		  
+		  /* .example.com is valid */
+		  while (*domain == '.')
+		    domain++;
+		  
+		  for (ds = daemon->ds; ds; ds = ds->next)
+		    if (ds->name[0] != 0 && hostname_isequal(domain, ds->name))
+		      break;
+		  
+		  if (!ds)
+		    serv->flags &= ~SERV_DO_DNSSEC;
+		}
+	      else if (serv->flags & SERV_FOR_NODOTS) 
+		serv->flags &= ~SERV_DO_DNSSEC;
+	    }
+#endif
+
 	  port = prettyprint_addr(&serv->addr, daemon->namebuff);
 	  
 	  /* 0.0.0.0 is nothing, the stack treats it like 127.0.0.1 */
@@ -1471,7 +1502,11 @@ void check_servers(void)
 	{
 	  if (serv->flags & (SERV_HAS_DOMAIN | SERV_FOR_NODOTS | SERV_USE_RESOLV))
 	    {
-	      char *s1, *s2;
+	      char *s1, *s2, *s3 = "";
+#ifdef HAVE_DNSSEC
+	      if (option_bool(OPT_DNSSEC_VALID) && !(serv->flags & SERV_DO_DNSSEC))
+		s3 = _("(no DNSSEC)");
+#endif
 	      if (!(serv->flags & SERV_HAS_DOMAIN))
 		s1 = _("unqualified"), s2 = _("names");
 	      else if (strlen(serv->domain) == 0)
@@ -1484,7 +1519,7 @@ void check_servers(void)
 	      else if (serv->flags & SERV_USE_RESOLV)
 		my_syslog(LOG_INFO, _("using standard nameservers for %s %s"), s1, s2);
 	      else 
-		my_syslog(LOG_INFO, _("using nameserver %s#%d for %s %s"), daemon->namebuff, port, s1, s2);
+		my_syslog(LOG_INFO, _("using nameserver %s#%d for %s %s %s"), daemon->namebuff, port, s1, s2, s3);
 	    }
 #ifdef HAVE_LOOP
 	  else if (serv->flags & SERV_LOOP)

src/option.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/outpacket.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/poll.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/radv-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/radv.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/rfc1035.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/rfc2131.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/rfc3315.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/rrfilter.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/slaac.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/tftp.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

src/util.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by