Fix parsing of IAID>MAXINT in leases file.

Thanks to Christof Meerwald for the bug report.

CHANGELOG

@@ -33,7 +33,7 @@ version 2.66
  
             Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
             DNSMASQ_REMOTE_ID variables to the environment of the
-            lease-change script (and the correponding Lua). These hold
+            lease-change script (and the corresponding Lua). These hold
             information inserted into the DHCP request by a DHCP relay
             agent. Thanks to Lakefield Communications for providing a
             bounty for this addition.
@@ -47,11 +47,18 @@ version 2.66
 	    patch.
 
 	    Don't erroneously reject some option names in --dhcp-match
-	    options. Thnaks to Benedikt Hochstrasser for the bug report.
+	    options. Thanks to Benedikt Hochstrasser for the bug report.
 	    
 	    Allow a trailing '*' wildcard in all interface-name
 	    configurations. Thanks to Christian Parpart for the patch.
 
+	    Handle the situation where libc headers define
+	    SO_REUSEPORT, but the kernel in use doesn't, to cope with
+	    the introduction of this option to Linux. Thanks to Rich
+	    Felker for the bug report.
+
+	    Update Polish translation. Thanks to Jan Psota.
+	    
   
 version 2.65
 	    Fix regression which broke forwarding of queries sent via

debian/rules

@@ -33,10 +33,8 @@ ifeq ($(DEB_BUILD_ARCH_OS),linux)
 endif
 endif
 
-ifeq (,$(filter noipset,$(DEB_BUILD_OPTIONS)))
-ifeq ($(DEB_BUILD_ARCH_OS),linux)
-     COPTS += -DHAVE_IPSET
-endif
+ifneq (,$(filter noipset,$(DEB_BUILD_OPTIONS)))
+     COPTS += -DNO_IPSET
 endif
 
 ifneq (,$(filter nodhcp6,$(DEB_BUILD_OPTIONS)))

man/dnsmasq.8

@@ -587,9 +587,9 @@ compiled in and the kernel must have conntrack support
 included and configured. This option cannot be combined with
 --query-port. 
 .TP
-.B \-F, --dhcp-range=[tag:<tag>[,tag:<tag>],][set:<tag],]<start-addr>[,<end-addr>][,<mode>][,<netmask>[,<broadcast>]][,<lease time>]
+.B \-F, --dhcp-range=[tag:<tag>[,tag:<tag>],][set:<tag>,]<start-addr>[,<end-addr>][,<mode>][,<netmask>[,<broadcast>]][,<lease time>]
 .TP
-.B \-F, --dhcp-range=[tag:<tag>[,tag:<tag>],][set:<tag],]<start-IPv6addr>[,<end-IPv6addr>|constuctor:<interface>][,<mode>][,<prefix-len>][,<lease time>]
+.B \-F, --dhcp-range=[tag:<tag>[,tag:<tag>],][set:<tag>,]<start-IPv6addr>[,<end-IPv6addr>|constructor:<interface>][,<mode>][,<prefix-len>][,<lease time>]
 
 Enable the DHCP server. Addresses will be given out from the range
 <start-addr> to <end-addr> and from statically defined addresses given
@@ -625,7 +625,7 @@ IPv6 (only) supports another type of range. In this, the start address and optio
 .B constructor:<interface>.
 This forms a template which describes how to create ranges, based on the addresses assigned to the interface. For instance
 
-.B --dhcp-range=::1,::4,constructor:eth0
+.B --dhcp-range=::1,::400,constructor:eth0
 
 will look for addreses of the form <network>::1 on eth0 and then create a range from <network>::1 to <network>::400. If the interface is assigned more than one network, then the corresponding ranges will be automatically created, and then deprecated and finally removed again as the address is deprecated and then deleted. The interface name may have a final "*" wildcard.
 

src/auth.c

@@ -721,10 +721,10 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 				  daemon->soa_retry, daemon->soa_expiry, 
 				  daemon->auth_ttl))
 	    anscount++;
-	
+	  
 	}
-  
-}
+      
+    }
   
   /* done all questions, set up header and return length of result */
   /* clear authoritative and truncated flags, set QR flag */

src/config.h

@@ -135,12 +135,12 @@ RESOLVFILE
 #define HAVE_TFTP
 #define HAVE_SCRIPT
 #define HAVE_AUTH
+#define HAVE_IPSET 
 /* #define HAVE_LUASCRIPT */
 /* #define HAVE_BROKEN_RTC */
 /* #define HAVE_DBUS */
 /* #define HAVE_IDN */
 /* #define HAVE_CONNTRACK */
-/* #define HAVE_IPSET */
 
 
 /* Default locations for important system files. */
@@ -327,7 +327,7 @@ HAVE_SOCKADDR_SA_LEN
 #undef HAVE_AUTH
 #endif
 
-#ifndef HAVE_LINUX_NETWORK
+#if defined(NO_IPSET) || !defined(HAVE_LINUX_NETWORK)
 #undef HAVE_IPSET
 #endif
 

src/dhcp-common.c

@@ -91,6 +91,7 @@ struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *con
 {
   struct dhcp_netid *tagif = run_tag_if(tags);
   struct dhcp_opt *opt;
+  struct dhcp_opt *tmp;  
 
   /* flag options which are valid with the current tag set (sans context tags) */
   for (opt = opts; opt; opt = opt->next)
@@ -135,7 +136,6 @@ struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *con
   for (opt = opts; opt; opt = opt->next)
     if (!(opt->flags & (DHOPT_ENCAPSULATE | DHOPT_VENDOR | DHOPT_RFC3925 | DHOPT_TAGOK)) && !opt->netid)
       {
-	struct dhcp_opt *tmp;  
 	for (tmp = opts; tmp; tmp = tmp->next) 
 	  if (tmp->opt == opt->opt && (tmp->flags & DHOPT_TAGOK))
 	    break;
@@ -145,6 +145,13 @@ struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *con
 	  my_syslog(MS_DHCP | LOG_WARNING, _("Ignoring duplicate dhcp-option %d"), tmp->opt); 
       }
 
+  /* Finally, eliminate duplicate options later in the chain, and therefore earlier in the config file. */
+  for (opt = opts; opt; opt = opt->next)
+    if (opt->flags & DHOPT_TAGOK)
+      for (tmp = opt->next; tmp; tmp = tmp->next) 
+	if (tmp->opt == opt->opt)
+	  tmp->flags &= ~DHOPT_TAGOK;
+  
   return tagif;
 }
 	

src/dhcp.c

@@ -65,14 +65,22 @@ static int make_fd(int port)
   
   /* When bind-interfaces is set, there might be more than one dnmsasq
      instance binding port 67. That's OK if they serve different networks.
-     Need to set REUSEADDR to make this posible, or REUSEPORT on *BSD. */
+     Need to set REUSEADDR|REUSEPORT to make this posible.
+     Handle the case that REUSEPORT is defined, but the kernel doesn't 
+     support it. This handles the introduction of REUSEPORT on Linux. */
   if (option_bool(OPT_NOWILD) || option_bool(OPT_CLEVERBIND))
     {
+      int rc = -1, porterr = 0;
+
 #ifdef SO_REUSEPORT
-      int rc = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &oneopt, sizeof(oneopt));
-#else
-      int rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &oneopt, sizeof(oneopt));
+      if ((rc = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &oneopt, sizeof(oneopt))) == -1 && 
+	  errno != ENOPROTOOPT)
+	porterr = 1;
 #endif
+      
+      if (rc == -1 && !porterr)
+	rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &oneopt, sizeof(oneopt));
+      
       if (rc == -1)
 	die(_("failed to set SO_REUSE{ADDR|PORT} on DHCP socket: %s"), NULL, EC_BADNET);
     }

src/dhcp6.c

@@ -48,16 +48,24 @@ void dhcp6_init(void)
       !set_ipv6pktinfo(fd))
     die (_("cannot create DHCPv6 socket: %s"), NULL, EC_BADNET);
   
-  /* When bind-interfaces is set, there might be more than one dnmsasq
+ /* When bind-interfaces is set, there might be more than one dnmsasq
      instance binding port 547. That's OK if they serve different networks.
-     Need to set REUSEADDR to make this posible, or REUSEPORT on *BSD. */
+     Need to set REUSEADDR|REUSEPORT to make this posible.
+     Handle the case that REUSEPORT is defined, but the kernel doesn't 
+     support it. This handles the introduction of REUSEPORT on Linux. */
   if (option_bool(OPT_NOWILD) || option_bool(OPT_CLEVERBIND))
     {
+      int rc = -1, porterr = 0;
+
 #ifdef SO_REUSEPORT
-      int rc = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &oneopt, sizeof(oneopt));
-#else
-      int rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &oneopt, sizeof(oneopt));
+      if ((rc = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &oneopt, sizeof(oneopt))) == -1 &&
+	  errno != ENOPROTOOPT)
+	porterr = 1;
 #endif
+      
+      if (rc == -1 && !porterr)
+	rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &oneopt, sizeof(oneopt));
+      
       if (rc == -1)
 	die(_("failed to set SO_REUSE{ADDR|PORT} on DHCPv6 socket: %s"), NULL, EC_BADNET);
     }
@@ -326,7 +334,7 @@ struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned c
 	  } while (addr != start);
 	}
 	   
-  return 0;
+  return NULL;
 }
 
 /* can dynamically allocate addr */

src/dnsmasq.h

@@ -543,6 +543,7 @@ struct dhcp_lease {
     int backoff; /* zero -> confirmed */
     struct slaac_address *next;
   } *slaac_address;
+  int vendorclass_count;
 #endif
   struct dhcp_lease *next;
 };

src/forward.c

@@ -680,7 +680,7 @@ void receive_query(struct listener *listen, time_t now)
   dst_addr_4.s_addr = 0;
   netmask.s_addr = 0;
   
-  if (listen->iface && option_bool(OPT_NOWILD))
+  if (option_bool(OPT_NOWILD) && listen->iface)
     {
       auth_dns = listen->iface->dns_auth;
      

src/helper.c

@@ -655,8 +655,9 @@ void queue_script(int action, struct dhcp_lease *lease, char *hostname, time_t n
   unsigned char *p;
   unsigned int hostname_len = 0, clid_len = 0, ed_len = 0;
   int fd = daemon->dhcpfd;
+#ifdef HAVE_DHCP6 
+  int is6 = !!(lease->flags & (LEASE_TA | LEASE_NA));
 
-#ifdef HAVE_DHCP6
   if (!daemon->dhcp)
     fd = daemon->dhcp6fd;
 #endif
@@ -676,7 +677,12 @@ void queue_script(int action, struct dhcp_lease *lease, char *hostname, time_t n
 
   buf->action = action;
   buf->flags = lease->flags;
-  buf->hwaddr_len = lease->hwaddr_len;
+#ifdef HAVE_DHCP6 
+  if (is6)
+    buf->hwaddr_len = lease->vendorclass_count;
+  else
+#endif
+    buf->hwaddr_len = lease->hwaddr_len;
   buf->hwaddr_type = lease->hwaddr_type;
   buf->clid_len = clid_len;
   buf->ed_len = ed_len;

src/lease.c

@@ -115,7 +115,7 @@ void lease_init(time_t now)
 		s++;
 	      }
 	    
-	    hw_type = atoi(s);
+	    hw_type = strtoul(s, NULL, 10);
 	    
 	    if ((lease = lease6_allocate(&addr.addr.addr6, lease_type)))
 	      {
@@ -595,6 +595,8 @@ struct dhcp_lease *lease6_find_by_client(struct dhcp_lease *first, int lease_typ
 
   if (!first)
     first = leases;
+  else
+    first = first->next;
 
   for (lease = first; lease; lease = lease->next)
     {

src/rfc3315.c

@@ -124,6 +124,7 @@ static int dhcp6_maybe_relay(struct in6_addr *link_address, struct dhcp_netid **
 		  is_same_net6(link_address, &c->start6, c->prefix) &&
 		  is_same_net6(link_address, &c->end6, c->prefix))
 		{
+		  c->preferred = c->valid = 0xffffffff;
 		  c->current = context;
 		  context = c;
 		}
@@ -216,7 +217,8 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
   unsigned int ignore = 0;
   struct state state;
 #ifdef OPTION6_PREFIX_CLASS
- struct prefix_class *p;
+  struct prefix_class *p;
+  int dump_all_prefix_classes = 0;
 #endif
 
   state.packet_options = inbuff + 4;
@@ -478,21 +480,32 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 	ignore = 1;
     }
 
-  tagif = state.tags;
-
 #ifdef OPTION6_PREFIX_CLASS
-  /* Add the tags associated with prefix classes so we can use the DHCP ranges.
-     These are removed and added back one-at-time for SOLICITs
-     Neccessary to allow REQUEST or RENEW of addresses ADVERTISED under
-     specific classes. */
-  for (p = daemon->prefix_classes; p ; p = p->next)
+  /* OPTION_PREFIX_CLASS in ORO, send addresses in all prefix classes */
+  if (daemon->prefix_classes && (msg_type == DHCP6SOLICIT || msg_type == DHCP6REQUEST))
     {
-      p->tag.next = tagif;
-      tagif = &p->tag;
-    }	
+      void *oro;
+      
+      if ((oro = opt6_find(state.packet_options, state.end, OPTION6_ORO, 0)))
+	for (i = 0; i <  opt6_len(oro) - 1; i += 2)
+	  if (opt6_uint(oro, i, 2) == OPTION6_PREFIX_CLASS)
+	    {
+	      dump_all_prefix_classes = 1;
+	      break;
+	    }
+      
+      if (msg_type != DHCP6SOLICIT || dump_all_prefix_classes)
+	/* Add the tags associated with prefix classes so we can use the DHCP ranges.
+	   Not done for SOLICIT as we add them  one-at-time. */
+	for (p = daemon->prefix_classes; p ; p = p->next)
+	  {
+	    p->tag.next = state.tags;
+	    state.tags = &p->tag;
+	  }
+    }    
 #endif
 
-  tagif = run_tag_if(tagif);
+  tagif = run_tag_if(state.tags);
   
   /* if all the netids in the ignore list are present, ignore this client */
   if (daemon->dhcp_ignore)
@@ -528,7 +541,7 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 	void *rapid_commit = opt6_find(state.packet_options, state.end, OPTION6_RAPID_COMMIT, 0);
       	int address_assigned = 0;
 	/* tags without all prefix-class tags */
-	struct dhcp_netid *solicit_tags = run_tag_if(state.tags);
+	struct dhcp_netid *solicit_tags = tagif;
 	struct dhcp_context *c;
 
 	if (rapid_commit)
@@ -565,9 +578,6 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 	    struct dhcp_lease *ltmp;
 	    struct in6_addr *req_addr;
 	    struct in6_addr addr;
-#ifdef OPTION6_PREFIX_CLASS
-	    int dump_all_prefix_classes = 0;
-#endif
 
 	    if (!check_ia(&state, opt, &ia_end, &ia_option))
 	      continue;
@@ -579,20 +589,12 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 #ifdef OPTION6_PREFIX_CLASS
 	    if (daemon->prefix_classes && state.ia_type == OPTION6_IA_NA)
 	      {
-		void *prefix_opt, *oro;
+		void *prefix_opt;
 		int prefix_class;
 		
-		if ((oro = opt6_find(state.packet_options, state.end, OPTION6_ORO, 0)))
-		  for (i = 0; i <  opt6_len(oro) - 1; i += 2)
-		    if (opt6_uint(oro, i, 2) == OPTION6_PREFIX_CLASS)
-		      break;
-		
-		if (oro && (i < opt6_len(oro) - 1))
-		  {
-		    /* OPTION_PREFIX_CLASS in ORO, send addresses in all prefix classes */
-		    plain_range = 0;
-		    dump_all_prefix_classes = 1;
-		  }
+		if (dump_all_prefix_classes)
+		  /* OPTION_PREFIX_CLASS in ORO, send addresses in all prefix classes */
+		  plain_range = 0;
 		else 
 		  { 
 		    if ((prefix_opt = opt6_find(opt6_ptr(opt, 12), ia_end, OPTION6_PREFIX_CLASS, 2)))
@@ -665,7 +667,7 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 		    
 		    /* add address to output packet */
 #ifdef OPTION6_PREFIX_CLASS
-		    if (dump_all_prefix_classes)
+		    if (dump_all_prefix_classes && state.ia_type == OPTION6_IA_NA)
 		      state.send_prefix_class = prefix_class_from_context(c);
 #endif		    
 		    add_address(&state, c, lease_time, requested_time, &min_time, req_addr, rapid_commit != NULL, now);
@@ -689,10 +691,10 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 		    lease_time = c->lease_time;
 		  /* add address to output packet */
 #ifdef OPTION6_PREFIX_CLASS
-		  if (dump_all_prefix_classes)
+		  if (dump_all_prefix_classes && state.ia_type == OPTION6_IA_NA)
 		    state.send_prefix_class = prefix_class_from_context(c);
 #endif
-		  add_address(&state, c, lease_time, requested_time, &min_time, &addr, rapid_commit != NULL, now);
+		  add_address(&state, c, lease_time, lease_time, &min_time, &addr, rapid_commit != NULL, now);
 		  mark_context_used(&state, context, &addr);
 		  get_context_tag(&state, c);
 		  address_assigned = 1;
@@ -706,7 +708,7 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 		if ((c = address6_available(context, req_addr, solicit_tags, plain_range)))
 		  {
 #ifdef OPTION6_PREFIX_CLASS
-		    if (dump_all_prefix_classes)
+		    if (dump_all_prefix_classes && state.ia_type == OPTION6_IA_NA)
 		      state.send_prefix_class = prefix_class_from_context(c);
 #endif
 		    add_address(&state, c, c->lease_time, c->lease_time, &min_time, req_addr, rapid_commit != NULL, now);
@@ -720,7 +722,7 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 	    while ((c = address6_allocate(context, state.clid, state.clid_len, state.iaid, ia_counter, solicit_tags, plain_range, &addr)))
 	      {
 #ifdef OPTION6_PREFIX_CLASS
-		if (dump_all_prefix_classes)
+		if (dump_all_prefix_classes && state.ia_type == OPTION6_IA_NA)
 		  state.send_prefix_class = prefix_class_from_context(c);
 #endif
 		add_address(&state, c, c->lease_time, c->lease_time, &min_time, &addr, rapid_commit != NULL, now);
@@ -823,6 +825,10 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
 			if (config_ok && have_config(config, CONFIG_TIME))
 			  lease_time = config->lease_time;
 
+#ifdef OPTION6_PREFIX_CLASS
+			if (dump_all_prefix_classes && state.ia_type == OPTION6_IA_NA)
+			  state.send_prefix_class = prefix_class_from_context(c);
+#endif
 			add_address(&state, dynamic, lease_time, requested_time, &min_time, req_addr, 1, now);
 			get_context_tag(&state, dynamic);
 			address_assigned = 1;
@@ -1603,12 +1609,12 @@ static void update_leases(struct state *state, struct dhcp_context *context, str
 	  free(lease->extradata);
 	  lease->extradata = NULL;
 	  lease->extradata_size = lease->extradata_len = 0;
-	  lease->hwaddr_len = 0; /* surrogate for no of vendor classes */
+	  lease->vendorclass_count = 0; 
 	  
 	  if ((class_opt = opt6_find(state->packet_options, state->end, OPTION6_VENDOR_CLASS, 4)))
 	    {
 	      void *enc_opt, *enc_end = opt6_ptr(class_opt, opt6_len(class_opt));
-	      lease->hwaddr_len++;
+	      lease->vendorclass_count++;
 	      /* send enterprise number first  */
 	      sprintf(daemon->dhcp_buff2, "%u", opt6_uint(class_opt, 0, 4));
 	      lease_add_extradata(lease, (unsigned char *)daemon->dhcp_buff2, strlen(daemon->dhcp_buff2), 0);
@@ -1616,7 +1622,7 @@ static void update_leases(struct state *state, struct dhcp_context *context, str
 	      if (opt6_len(class_opt) >= 6) 
 		for (enc_opt = opt6_ptr(class_opt, 4); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
 		  {
-		    lease->hwaddr_len++;
+		    lease->vendorclass_count++;
 		    lease_add_extradata(lease, opt6_ptr(enc_opt, 0), opt6_len(enc_opt), 0);
 		  }
 	    }