Bump Debian version.

Some CNAMES left the value of ->uid undefined.

Since there are now special values if this, for CNAMES
to interface names, that could cause a crash
if the undefined value hit the special value.

Also ensure that the special value can't arise
when the uid is encoding the source of an F_CONFIG
record, in case there's a CNAME to it.

CHANGELOG

@@ -1,3 +1,203 @@
+version 2.71
+            Subtle change to error handling to help DNSSEC validation 
+	    when servers fail to provide NODATA answers for 
+	    non-existent DS records.
+
+	    Tweak code which removes DNSSEC records from answers when
+	    not required. Fixes broken answers when additional section
+	    has real records in it. Thanks to Marco Davids for the bug 
+	    report.
+
+	    Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
+	    for spotting that too.
+
+	    Fix total DNS failure and 100% CPU use if cachesize set to zero,
+	    regression introduced in 2.69. Thanks to James Hunt and
+	    the Ubuntu crowd for assistance in fixing this.
+
+
+version 2.70
+            Fix crash, introduced in 2.69, on TCP request when dnsmasq
+	    compiled with DNSSEC support, but running without DNSSEC
+	    enabled. Thanks to Manish Sing for spotting that one.
+
+	    Fix regression which broke ipset functionality. Thanks to 
+	    Wang Jian for the bug report.
+
+
+version 2.69
+	    Implement dynamic interface discovery on *BSD. This allows
+	    the contructor: syntax to be used in dhcp-range for DHCPv6
+	    on the BSD platform. Thanks to Matthias Andree for
+	    valuable research on how to implement this.
+
+	    Fix infinite loop associated with some --bogus-nxdomain
+	    configs. Thanks fogobogo for the bug report.
+
+	    Fix missing RA RDNS option with configuration like
+	    --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
+	    for spotting the problem.
+
+	    Add [fd00::] and [fe80::] as special addresses in DHCPv6
+	    options, analogous to [::]. [fd00::] is replaced with the
+	    actual ULA of the interface on the machine running
+	    dnsmasq, [fe80::] with the link-local address. 
+	    Thanks to Tsachi Kimeldorfer for championing this.
+
+	    DNSSEC validation and caching. Dnsmasq needs to be
+	    compiled with this enabled, with 
+	    
+	    make dnsmasq COPTS=-DHAVE_DNSSEC
+	    
+	    this add dependencies on the nettle crypto library and the 
+	    gmp maths library. It's possible to have these linked
+	    statically with
+	    
+	    make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
+	    
+	    which bloats the dnsmasq binary, but saves the size of 
+	    the shared libraries which are much bigger.
+
+	    To enable, DNSSEC, you will need a set of
+	    trust-anchors. Now that the TLDs are signed, this can be
+	    the keys for the root zone, and for convenience they are
+	    included in trust-anchors.conf in the dnsmasq
+	    distribution. You should of course check that these are
+	    legitimate and up-to-date. So, adding
+	    
+	    conf-file=/path/to/trust-anchors.conf
+	    dnssec
+
+	    to your config is all thats needed to get things
+	    working. The upstream nameservers have to be DNSSEC-capable
+	    too, of course. Many ISP nameservers aren't, but the
+	    Google public nameservers (8.8.8.8 and 8.8.4.4) are.
+	    When DNSSEC is configured, dnsmasq validates any queries 
+	    for domains which are signed. Query results which are 
+	    bogus are replaced with SERVFAIL replies, and results 
+	    which are correctly signed have the AD bit set. In 
+	    addition, and just as importantly, dnsmasq supplies 
+	    correct DNSSEC information to clients which are doing 
+	    their own validation, and caches DNSKEY, DS and RRSIG
+	    records, which significantly improve the performance of 
+	    downstream validators. Setting --log-queries will show 
+	    DNSSEC in action.
+
+	    If a domain is returned from an upstream nameserver without 
+	    DNSSEC signature, dnsmasq by default trusts this. This 
+	    means that for unsigned zone (still the majority) there 
+	    is effectively no cost for having DNSSEC enabled. Of course
+	    this allows an attacker to replace a signed record with a 
+	    false unsigned record. This is addressed by the 
+	    --dnssec-check-unsigned flag, which instructs dnsmasq
+	    to prove that an unsigned record is legitimate, by finding  
+	    a secure proof that the zone containing the record is not
+	    signed. Doing this has costs (typically one or two extra
+	    upstream queries). It also has a nasty failure mode if
+	    dnsmasq's upstream nameservers are not DNSSEC capable. 
+	    Without --dnssec-check-unsigned using such an upstream
+	    server will simply result in not queries being validated; 
+	    with --dnssec-check-unsigned enabled and a 
+	    DNSSEC-ignorant upstream server, _all_ queries will fail.
+
+	    Note that DNSSEC requires that the local time is valid and 
+	    accurate, if not then DNSSEC validation will fail. NTP 
+	    should be running. This presents a problem for routers
+	    without a battery-backed clock. To set the time needs NTP 
+	    to do DNS lookups, but lookups will fail until NTP has run.
+	    To address this, there's a flag, --dnssec-no-timecheck 
+	    which disables the time checks (only) in DNSSEC. When dnsmasq
+	    is started and the clock is not synced, this flag should
+	    be used. As soon as the clock is synced, SIGHUP dnsmasq. 
+	    The SIGHUP clears the cache of partially-validated data and
+	    resets the no-timecheck flag, so that all DNSSEC checks 
+	    henceforward will be complete.
+	    
+	    The development of DNSSEC in dnsmasq was started by 
+	    Giovanni Bajo, to whom huge thanks are owed. It has been
+	    supported by Comcast, whose techfund grant has allowed for 
+	    an invaluable period of full-time work to get it to 
+	    a workable state.
+ 
+	    Add --rev-server. Thanks to Dave Taht for suggesting this.
+	    
+	    Add --servers-file. Allows dynamic update of upstream servers 
+	    full access to configuration. 
+
+	    Add --local-service. Accept DNS queries only from hosts 
+            whose address is on a local subnet, ie a subnet for which 
+            an interface exists on the server. This option
+            only has effect if there are no --interface --except-interface,
+            --listen-address or --auth-server options. It is intended 
+            to be set as a default on installation, to allow
+            unconfigured installations to be useful but also safe from 
+	    being used for DNS amplification attacks.
+
+	    Fix crashes in cache_get_cname_target() when dangling CNAMEs
+	    encountered. Thanks to Andy and the rt-n56u project for
+	    find this and helping to chase it down.
+
+	    Fix wrong RCODE in authoritative DNS replies to PTR queries. The
+	    correct answer was included, but the RCODE was set to NXDOMAIN.
+	    Thanks to Craig McQueen for spotting this.
+
+	    Make statistics available as DNS queries in the .bind TLD as 
+	    well as logging them.
+
+
+version 2.68
+            Use random addresses for DHCPv6 temporary address
+            allocations, instead of algorithmically determined stable
+            addresses.
+
+	    Fix bug which meant that the DHCPv6 DUID was not available
+	    in DHCP script runs during the lifetime of the dnsmasq
+	    process which created the DUID de-novo. Once the DUID was
+	    created and stored in the lease file and dnsmasq
+	    restarted, this bug disappeared.
+
+	    Fix bug introduced in 2.67 which could result in erroneous
+	    NXDOMAIN returns to CNAME queries.
+
+	    Fix build failures on MacOS X and openBSD.
+
+	    Allow subnet specifications in --auth-zone to be interface 
+	    names as well as address literals. This makes it possible
+	    to configure authoritative DNS when local address ranges
+	    are dynamic and works much better than the previous
+	    work-around which exempted contructed DHCP ranges from the
+	    IP address filtering. As a consequence, that work-around
+	    is removed. Under certain circumstances, this change wil
+	    break existing configuration: if you're relying on the
+	    contructed-range exception, you need to change --auth-zone
+	    to specify the same interface as is used to construct your
+	    DHCP ranges, probably with a trailing "/6" like this: 
+	    --auth-zone=example.com,eth0/6 to limit the addresses to
+	    IPv6 addresses of eth0.
+
+	    Fix problems when advertising deleted IPv6 prefixes. If
+	    the prefix is deleted (rather than replaced), it doesn't
+	    get advertised with zero preferred time. Thanks to Tsachi
+	    for the bug report. 
+
+	    Fix segfault with some locally configured CNAMEs. Thanks
+	    to Andrew Childs for spotting the problem.
+
+	    Fix memory leak on re-reading /etc/hosts and friends,
+	    introduced in 2.67.
+
+	    Check the arrival interface of incoming DNS and TFTP
+	    requests via IPv6, even in --bind-interfaces mode. This
+	    isn't possible for IPv4 and can generate scary warnings,
+	    but as it's always possible for IPv6 (the API always
+	    exists) then we should do it always. 
+	    
+	    Tweak the rules on prefix-lengths in --dhcp-range for
+	    IPv6. The new rule is that the specified prefix length
+	    must be larger than or equal to the prefix length of the
+	    corresponding address on the local interface. 
+
+
 version 2.67
 	    Fix crash if upstream server returns SERVFAIL when
 	    --conntrack in use. Thanks to Giacomo Tazzari for finding
@@ -90,8 +290,6 @@ version 2.67
             smallest valid dhcp-range is sent. Thanks to Uwe Schindler 
 	    for suggesting this.
 
-	    Add --force-fast-ra option. Another thanks to Uwe Schindler.  
-
 	    Make --listen-address higher priority than --except-interface
 	    in all circumstances. Thanks to Thomas Hood for the bugreport.
 
@@ -125,7 +323,36 @@ version 2.67
 	    range. This was originally to avoid SLAAC addresses, but
 	    we now explicitly autoconfig and privacy addresses instead.  
 
+	    Update Polish translation. Thanks to Jan Psota.
 
+	    Fix problem in DHCPv6 vendorclass/userclass matching
+	    code. Thanks to Tanguy Bouzeloc for the patch.
+
+ 	    Update Spanish transalation. Thanks to Vicente Soriano.
+
+	    Add --ra-param option. Thanks to Vladislav Grishenko for
+	    inspiration on this.
+
+	    Add --add-subnet configuration, to tell upstream DNS
+	    servers where the original client is. Thanks to DNSthingy
+	    for sponsoring this feature.
+
+	    Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
+	    Kevin Darbyshire-Bryant for the initial patch.
+
+	    Allow A/AAAA records created by --interface-name to be the
+	    target of --cname. Thanks to Hadmut Danisch for the
+	    suggestion. 
+
+	    Avoid treating a --dhcp-host which has an IPv6 address
+	    as eligable for use with DHCPv4 on the grounds that it has
+	    no address, and vice-versa. Thanks to Yury Konovalov for
+	    spotting the problem.
+
+	    Do a better job caching dangling CNAMEs. Thanks to Yves
+	    Dorfsman for spotting the problem.
+
+ 
 version 2.66
             Add the ability to act as an authoritative DNS
             server. Dnsmasq can now answer queries from the wider 'net

Makefile

@@ -1,4 +1,4 @@
-# dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+# dnsmasq is Copyright (c) 2000-2014 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
@@ -51,30 +51,34 @@ top!=pwd
 # GNU make way.
 top?=$(CURDIR)
 
-dbus_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --cflags dbus-1` 
-dbus_libs =   `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --libs dbus-1` 
-idn_cflags =  `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --cflags libidn` 
-idn_libs =    `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --libs libidn` 
-ct_cflags =   `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_CONNTRACK $(PKG_CONFIG) --cflags libnetfilter_conntrack`
-ct_libs =     `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_CONNTRACK $(PKG_CONFIG) --libs libnetfilter_conntrack`
-lua_cflags =  `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --cflags lua5.1` 
-lua_libs =    `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --libs lua5.1` 
-sunos_libs =  `if uname | grep SunOS >/dev/null 2>&1; then echo -lsocket -lnsl -lposix4; fi`
+dbus_cflags =   `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --cflags dbus-1` 
+dbus_libs =     `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --libs dbus-1` 
+idn_cflags =    `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --cflags libidn` 
+idn_libs =      `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --libs libidn` 
+ct_cflags =     `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_CONNTRACK $(PKG_CONFIG) --cflags libnetfilter_conntrack`
+ct_libs =       `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_CONNTRACK $(PKG_CONFIG) --libs libnetfilter_conntrack`
+lua_cflags =    `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --cflags lua5.1` 
+lua_libs =      `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --libs lua5.1` 
+nettle_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --cflags nettle hogweed`
+nettle_libs =   `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --libs nettle hogweed`
+gmp_libs =      `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --copy -lgmp`
+sunos_libs =    `if uname | grep SunOS >/dev/null 2>&1; then echo -lsocket -lnsl -lposix4; fi`
 version =     -DVERSION='\"`$(top)/bld/get-version $(top)`\"'
 
 objs = cache.o rfc1035.o util.o option.o forward.o network.o \
        dnsmasq.o dhcp.o lease.o rfc2131.o netlink.o dbus.o bpf.o \
        helper.o tftp.o log.o conntrack.o dhcp6.o rfc3315.o \
-       dhcp-common.o outpacket.o radv.o slaac.o auth.o ipset.o domain.o
+       dhcp-common.o outpacket.o radv.o slaac.o auth.o ipset.o \
+       domain.o dnssec.o blockdata.o
 
 hdrs = dnsmasq.h config.h dhcp-protocol.h dhcp6-protocol.h \
-       dns-protocol.h radv-protocol.h
+       dns-protocol.h radv-protocol.h ip6addr.h
 
 all : $(BUILDDIR)
 	@cd $(BUILDDIR) && $(MAKE) \
  top="$(top)" \
- build_cflags="$(version) $(dbus_cflags) $(idn_cflags) $(ct_cflags) $(lua_cflags)" \
- build_libs="$(dbus_libs) $(idn_libs) $(ct_libs) $(lua_libs) $(sunos_libs)" \
+ build_cflags="$(version) $(dbus_cflags) $(idn_cflags) $(ct_cflags) $(lua_cflags) $(nettle_cflags)" \
+ build_libs="$(dbus_libs) $(idn_libs) $(ct_libs) $(lua_libs) $(sunos_libs) $(nettle_libs) $(gmp_libs)" \
  -f $(top)/Makefile dnsmasq 
 
 mostly_clean :
@@ -97,8 +101,8 @@ all-i18n : $(BUILDDIR)
 	@cd $(BUILDDIR) && $(MAKE) \
  top="$(top)" \
  i18n=-DLOCALEDIR=\'\"$(LOCALEDIR)\"\' \
- build_cflags="$(version) $(dbus_cflags) $(ct_cflags) $(lua_cflags) `$(PKG_CONFIG) --cflags libidn`" \
- build_libs="$(dbus_libs) $(ct_libs) $(lua_libs) $(sunos_libs) `$(PKG_CONFIG) --libs libidn`"  \
+ build_cflags="$(version) $(dbus_cflags) $(ct_cflags) $(lua_cflags) $(nettle_cflags) `$(PKG_CONFIG) --cflags libidn`" \
+ build_libs="$(dbus_libs) $(ct_libs) $(lua_libs) $(sunos_libs) $(nettle_libs) $(gmp_libs) `$(PKG_CONFIG) --libs libidn`"  \
  -f $(top)/Makefile dnsmasq
 	for f in `cd $(PO); echo *.po`; do \
 		cd $(top) && cd $(BUILDDIR) && $(MAKE) top="$(top)" -f $(top)/Makefile $${f%.po}.mo; \
@@ -114,6 +118,11 @@ merge :
 		echo -n msgmerge $(PO)/$$f && $(MSGMERGE) --no-wrap -U $(PO)/$$f $(BUILDDIR)/dnsmasq.pot; \
 	done
 
+# Cannonicalise .po file.
+%.po : 
+	@cd $(BUILDDIR) && $(MAKE) -f $(top)/Makefile dnsmasq.pot
+	mv $(PO)/$*.po $(PO)/$*.po.orig && $(MSGMERGE) --no-wrap $(PO)/$*.po.orig $(BUILDDIR)/dnsmasq.pot >$(PO)/$*.po; 
+
 $(BUILDDIR):
 	mkdir -p $(BUILDDIR)
 

bld/Android.mk

@@ -8,7 +8,8 @@ LOCAL_SRC_FILES :=  bpf.c cache.c dbus.c dhcp.c dnsmasq.c \
                     netlink.c network.c option.c rfc1035.c \
 		    rfc2131.c tftp.c util.c conntrack.c \
 		    dhcp6.c rfc3315.c dhcp-common.c outpacket.c \
-		    radv.c slaac.c auth.c ipset.c domain.c
+		    radv.c slaac.c auth.c ipset.c domain.c \
+	            dnssec.c dnssec-openssl.c blockdata.c
 
 LOCAL_MODULE := dnsmasq
 

bld/pkg-wrapper

@@ -2,10 +2,34 @@
 
 search=$1
 shift
+pkg=$1
+shift
+op=$1
+shift
+
+in=`cat`
 
 if grep "^\#[[:space:]]*define[[:space:]]*$search" config.h >/dev/null 2>&1 || \
-   grep $search >/dev/null 2>&1; then
-  exec $*
+    echo $in | grep $search >/dev/null 2>&1; then
+
+    if [ $op = "--copy" ]; then
+	pkg="$*"
+    elif grep "^\#[[:space:]]*define[[:space:]]*${search}_STATIC" config.h >/dev/null 2>&1 || \
+	      echo $in | grep ${search}_STATIC >/dev/null 2>&1; then
+	pkg=`$pkg  --static $op $*`
+    else
+	pkg=`$pkg $op $*`
+    fi
+
+    if grep "^\#[[:space:]]*define[[:space:]]*${search}_STATIC" config.h >/dev/null 2>&1 || \
+	echo $in | grep ${search}_STATIC >/dev/null 2>&1; then
+	if [ $op = "--libs" ] || [ $op = "--copy" ]; then
+	    echo "-Wl,-Bstatic $pkg -Wl,-Bdynamic"
+	else
+	    echo "$pkg" 
+	fi
+    else
+	echo "$pkg"
+    fi
 fi
 
-

contrib/try-all-ns/dnsmasq-2.68-try-all-ns

@@ -0,0 +1,29 @@
+From: Jesse Glick <jglick@cloudbees.com>
+To: dnsmasq-discuss@lists.thekelleys.org.uk
+Subject: Re: [Dnsmasq-discuss] Ability to delegate to one server but fall
+ back to another after NXDOMAIN?
+
+
+On Wed, Jan 15, 2014 at 12:30 PM, Simon Kelley <simon@thekelleys.org.uk> wrote:
+> > There's a (very old) patch in contrib/try-all-ns that would make a starting point
+This does not apply against trunk, so I tried to rework it. The
+following appears to do what I expect:
+
+diff --git a/src/forward.c b/src/forward.c
+index 8167229..76070b5 100644
+--- a/src/forward.c
++++ b/src/forward.c
+@@ -610,7 +610,11 @@ void reply_query(int fd, int family, time_t now)
+
+   if ((RCODE(header) == SERVFAIL || RCODE(header) == REFUSED) &&
+       !option_bool(OPT_ORDER) &&
+-      forward->forwardall == 0)
++      forward->forwardall == 0 ||
++      /* try each in turn */
++      RCODE(header) == NXDOMAIN &&
++      option_bool(OPT_ORDER) &&
++      server->next != NULL)
+     /* for broken servers, attempt to send to another one. */
+     {
+       unsigned char *pheader;
+

debian/changelog

@@ -1,3 +1,57 @@
+dnsmasq (2.71-1) unstable; urgency=low
+
+   * New upstream.
+   * Fix 100% CPU-usage bug when dnsmasq started with cachesize
+     set to zero. (LP: #1314697)
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Fri, 16 May 2014 20:17:10 +0000
+
+dnsmasq (2.70-3) unstable; urgency=medium
+
+   * Write a pid-file, even when being started using systemd, since
+     other components may wish to signal dnsmasq.
+   * Enable dnsmasq systemd unit on install. Otherwise dnsmasq does not run on
+     fresh installations (without administrator handholding) and even worse it
+     is disabled on systems switching from sysv to systemd. Modify
+     postinst/postrm exactly as dh_systemd would, add dependency on
+     init-system-helpers. Closes: #724602
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Sun, 11 May 2014 17:45:21 +0000
+
+dnsmasq (2.70-2) unstable; urgency=low
+
+   * Ensure daemon not stared if dnsmasq package has been removed,
+     even if dnsmasq-base is still installed. (closes: #746941)
+   * Tidy cruft in initscript. (closes: #746940)
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Sun, 04 May 2014 21:34:11 +0000
+
+dnsmasq (2.70-1) unstable; urgency=low
+
+   * New upstream.
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Wed, 23 Apr 2014 15:14:42 +0000
+
+dnsmasq (2.69-1) unstable; urgency=low
+
+   * New upstream.
+   * Set --local-service. (closes: #732610)
+     This tells dnsmasq to ignore DNS requests that don't come
+     from a local network. It's automatically ignored if
+     --interface --except-interface, --listen-address or
+     --auth-server exist in the configuration, so for most
+     installations, it will have no effect, but for
+     otherwise-unconfigured installations, it stops dnsmasq
+     from being vulnerable to DNS-reflection attacks.
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Tue, 4 Feb 2014 16:28:12 +0000
+
+dnsmasq (2.68-1) unstable; urgency=low
+
+   * New upstream. (closes: #730553)
+
+ -- Simon Kelley <simon@thekelleys.org.uk>  Sun, 8 Dec 2013 15:57:32 +0000
+
 dnsmasq (2.67-1) unstable; urgency=low
 
    * New upstream.

debian/control

@@ -1,13 +1,16 @@
 Source: dnsmasq
 Section: net
 Priority: optional
-Build-depends: gettext, libnetfilter-conntrack-dev [linux-any], libidn11-dev, libdbus-1-dev (>=0.61)
+Build-depends: gettext, libnetfilter-conntrack-dev [linux-any],
+               libidn11-dev, libdbus-1-dev (>=0.61), libgmp-dev, 
+               nettle-dev (>=2.4-3)
 Maintainer: Simon Kelley <simon@thekelleys.org.uk>
 Standards-Version: 3.9.3
 
 Package: dnsmasq
 Architecture: all
-Depends: netbase, dnsmasq-base(>= ${binary:Version})
+Depends: netbase, dnsmasq-base(>= ${binary:Version}),
+         init-system-helpers (>= 1.18~)
 Suggests: resolvconf
 Conflicts: resolvconf (<<1.15)
 Description: Small caching DNS proxy and DHCP/TFTP server

debian/default

@@ -27,7 +27,7 @@ CONFIG_DIR=/etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new
 # If the resolvconf package is installed, dnsmasq will use its output 
 # rather than the contents of /etc/resolv.conf to find upstream 
 # nameservers. Uncommenting this line inhibits this behaviour.
-# Not that including a "resolv-file=<filename>" line in 
+# Note that including a "resolv-file=<filename>" line in 
 # /etc/dnsmasq.conf is not enough to override resolvconf if it is
 # installed: the line below must be uncommented.
 #IGNORE_RESOLVCONF=yes

debian/init

@@ -29,6 +29,12 @@ if [ -r /etc/default/locale ]; then
         export LANG
 fi
 
+# /etc/dnsmasq.d/README is a non-conffile installed by the dnsmasq package.
+# Should the dnsmasq package be removed, the following test ensures that
+# the daemon is no longer started, even if the dnsmasq-base package is
+# still in place.
+test -e /etc/dnsmasq.d/README || exit 0
+
 test -x $DAEMON || exit 0
 
 # Provide skeleton LSB log functions for backports which don't have LSB functions.
@@ -90,6 +96,14 @@ if [ ! "$DNSMASQ_USER" ]; then
    DNSMASQ_USER="dnsmasq"
 fi
 
+# This tells dnsmasq to ignore DNS requests that don't come from a local network.
+# It's automatically ignored if  --interface --except-interface, --listen-address 
+# or --auth-server exist in the configuration, so for most installations, it will
+# have no effect, but for otherwise-unconfigured installations, it stops dnsmasq
+# from being vulnerable to DNS-reflection attacks.
+
+DNSMASQ_OPTS="$DNSMASQ_OPTS --local-service"
+
 start()
 {
         # Return
@@ -144,9 +158,6 @@ stop()
 	#   2 if daemon could not be stopped
 	#   other if a failure occurred
 	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile /var/run/dnsmasq/$NAME.pid --name $NAME
-	RETVAL="$?"
-	[ "$RETVAL" = 2 ] && return 2
-	return "$RETVAL"
 }
 
 stop_resolvconf()
@@ -266,9 +277,8 @@ case "$1" in
 	stop_resolvconf
 	;;
   systemd-exec)
-#  --pid-file without argument disables writing a PIDfile, we don't need one with sytemd.
 # Enable DBus by default because we use DBus activation with systemd.
-	exec $DAEMON --keep-in-foreground --pid-file --enable-dbus \
+	exec $DAEMON --keep-in-foreground --enable-dbus \
 	    ${MAILHOSTNAME:+ -m $MAILHOSTNAME} \
 	    ${MAILTARGET:+ -t $MAILTARGET} \
 	    ${DNSMASQ_USER:+ -u $DNSMASQ_USER} \

debian/postinst

@@ -1,6 +1,22 @@
 #!/bin/sh
 set -e
 
+# Code copied from dh_systemd_enable ----------------------
+# This will only remove masks created by d-s-h on package removal.
+deb-systemd-helper unmask dnsmasq.service >/dev/null || true
+
+# was-enabled defaults to true, so new installations run enable.
+if deb-systemd-helper --quiet was-enabled dnsmasq.service; then
+	# Enables the unit on first installation, creates new
+	# symlinks on upgrades if the unit file has changed.
+	deb-systemd-helper enable dnsmasq.service >/dev/null || true
+else
+	# Update the statefile to add new symlinks (if any), which need to be
+	# cleaned up on purge. Also remove old symlinks.
+	deb-systemd-helper update-state dnsmasq.service >/dev/null || true
+fi
+# End code copied from dh_systemd_enable ------------------
+
 if [ -x /etc/init.d/dnsmasq ]; then
    update-rc.d dnsmasq defaults 15 85 >/dev/null
 

debian/postrm

@@ -4,3 +4,19 @@ set -e
 if [ purge = "$1" ]; then
    update-rc.d dnsmasq remove >/dev/null
 fi
+
+# Code copied from dh_systemd_enable ----------------------
+if [ "$1" = "remove" ]; then
+	if [ -x "/usr/bin/deb-systemd-helper" ]; then
+		deb-systemd-helper mask dnsmasq.service >/dev/null
+	fi
+fi
+
+if [ "$1" = "purge" ]; then
+	if [ -x "/usr/bin/deb-systemd-helper" ]; then
+		deb-systemd-helper purge dnsmasq.service >/dev/null
+		deb-systemd-helper unmask dnsmasq.service >/dev/null
+	fi
+fi
+# End code copied from dh_systemd_enable ------------------
+

debian/rules

@@ -17,7 +17,11 @@ CFLAGS += -Wall -W
 
 LDFLAGS = $(shell dpkg-buildflags --get LDFLAGS)
 
-COPTS = 
+DEB_COPTS = $(COPTS)
+
+# The nettle library in Debian is too old to include
+# ECC support.
+DEB_COPTS += -DNO_NETTLE_ECC
 
 TARGET = install-i18n
 
@@ -25,56 +29,60 @@ DEB_BUILD_ARCH_OS := $(shell dpkg-architecture -qDEB_BUILD_ARCH_OS)
 
 # Force package version based on git tags.
 ifneq (,$(filter gitversion,$(DEB_BUILD_OPTIONS)))
-     PACKAGE_VERSION = $(shell bld/get-version `pwd` |  sed 's/[a-z]/~&/;  s/-/./g; s/$$/-1/; s/^/-v/';)
+     PACKAGE_VERSION = $(shell bld/get-version `pwd` |  sed 's/test/~&/; s/[a-z]/~&/;  s/-/./g; s/$$/-1/; s/^/-v/';)
 endif
 
 ifeq (,$(filter nodbus,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DHAVE_DBUS
+     DEB_COPTS += -DHAVE_DBUS
 endif
 
 ifeq (,$(filter noconntrack,$(DEB_BUILD_OPTIONS)))
 ifeq ($(DEB_BUILD_ARCH_OS),linux)
-     COPTS += -DHAVE_CONNTRACK
+     DEB_COPTS += -DHAVE_CONNTRACK
 endif
 endif
 
 ifneq (,$(filter noipset,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_IPSET
+     DEB_COPTS += -DNO_IPSET
 endif
 
 ifneq (,$(filter nodhcp6,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_DHCP6
+     DEB_COPTS += -DNO_DHCP6
 endif
 
 ifneq (,$(filter noipv6,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_IPV6
+     DEB_COPTS += -DNO_IPV6
 endif
 
 ifneq (,$(filter notftp,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_TFTP
+     DEB_COPTS += -DNO_TFTP
 endif
 
 ifneq (,$(filter nodhcp,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_DHCP
+     DEB_COPTS += -DNO_DHCP
 endif
 
 ifneq (,$(filter noscript,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DNO_SCRIPT
+     DEB_COPTS += -DNO_SCRIPT
 endif
 
 ifneq (,$(filter nortc,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DHAVE_BROKEN_RTC
+     DEB_COPTS += -DHAVE_BROKEN_RTC
 endif
 
 ifneq (,$(filter noi18n,$(DEB_BUILD_OPTIONS)))
      TARGET = install
      ifeq (,$(filter noidn, $(DEB_BUILD_OPTIONS)))
-	COPTS += -DHAVE_IDN
+	DEB_COPTS += -DHAVE_IDN
      endif	
 endif
 
 ifneq (,$(filter uselua,$(DEB_BUILD_OPTIONS)))
-     COPTS += -DHAVE_LUASCRIPT
+     DEB_COPTS += -DHAVE_LUASCRIPT
+endif
+
+ifeq (,$(filter nodnssec,$(DEB_BUILD_OPTIONS)))
+     DEB_COPTS += -DHAVE_DNSSEC
 endif
 
 clean:
@@ -122,12 +130,14 @@ binary-arch:	checkroot
 	        -d debian/base/usr/share/doc/$(package) \
 		-d debian/base/usr/share/doc/$(package)/examples \
 	        -d debian/base/var/run \
+		-d debian/base/usr/share/$(package) \
 	        -d debian/base/var/lib/misc
-	make $(TARGET) PREFIX=/usr DESTDIR=`pwd`/debian/base CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" COPTS="$(COPTS)" CC=gcc
+	make $(TARGET) PREFIX=/usr DESTDIR=`pwd`/debian/base CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" COPTS="$(DEB_COPTS)" CC=gcc
 ifeq (,$(findstring nodocs,$(DEB_BUILD_OPTIONS)))
 	install -m 644 doc.html debian/base/usr/share/doc/$(package)/.
 	install -m 644 setup.html debian/base/usr/share/doc/$(package)/.
 	install -m 644 dnsmasq.conf.example debian/base/usr/share/doc/$(package)/examples/.
+	install -m 644 trust-anchors.conf debian/base/usr/share/$(package)/.
 	install -m 644 FAQ debian/base/usr/share/doc/$(package)/.
 	gzip -9 debian/base/usr/share/doc/$(package)/FAQ
 	install -m 644 CHANGELOG debian/base/usr/share/doc/$(package)/changelog
@@ -167,7 +177,7 @@ ifeq ($(DEB_BUILD_ARCH_OS),linux)
                        -d debian/utils/usr/share/man/man1 \
 	               -d debian/utils/usr/bin \
                        -d debian/utils/usr/share/doc/dnsmasq-utils
-	make -C contrib/wrt PREFIX=/usr DESTDIR=`pwd`/debian/utils CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" COPTS="$(COPTS)" CC=gcc
+	make -C contrib/wrt PREFIX=/usr DESTDIR=`pwd`/debian/utils CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" COPTS="$(DEB_COPTS)" CC=gcc
 	install -m 755 contrib/wrt/dhcp_release debian/utils/usr/bin/dhcp_release
 	install -m 644 contrib/wrt/dhcp_release.1 debian/utils/usr/share/man/man1/dhcp_release.1
 	gzip -9 debian/utils/usr/share/man/man1/dhcp_release.1

debian/systemd.service

@@ -13,9 +13,8 @@ ExecStartPre=/usr/sbin/dnsmasq --test
 # itself, when called with the "systemd-exec" function.
 #
 # It also adds the command-line flags
-#    --keep-in-foreground --pid-file --enable-dbus 
-# to disable writing a pid-file (not needed with systemd) and 
-# enable DBus by default because we use DBus activation.
+#    --keep-in-foreground --enable-dbus 
+# to enable DBus by default because we use DBus activation.
 #
 ExecStart=/etc/init.d/dnsmasq systemd-exec
 

dnsmasq.conf.example

@@ -20,6 +20,18 @@
 # Never forward addresses in the non-routed address spaces.
 #bogus-priv
 
+# Uncomment these to enable DNSSEC validation and caching:
+# (Requires dnsmasq to be built with DNSSEC option.)
+#conf-file=%%PREFIX%%/share/dnsmasq/trust-anchors.conf
+#dnssec
+
+# Replies which are not DNSSEC signed may be legitimate, because the domain
+# is unsigned, or may be forgeries. Setting this option tells dnsmasq to
+# check that an unsigned reply is OK, by finding a secure proof that a DS 
+# record somewhere between the root and the domain does not exist. 
+# The cost of setting this is that even queries in unsigned domains will need
+# one or more extra DNS queries to verify.
+#dnssec-check-unsigned
 
 # Uncomment this to filter useless windows-originated DNS requests
 # which can trigger dial-on-demand links needlessly.

doc.html

@@ -1,6 +1,6 @@
 <HTML>
 <HEAD>
-<TITLE> Dnsmasq - a DNS forwarder for NAT firewalls.</TITLE>
+<TITLE> Dnsmasq - network services for small networks.</TITLE>
 <link rel="icon"
       href="http://www.thekelleys.org.uk/dnsmasq/images/favicon.ico">
 </HEAD>
@@ -11,82 +11,48 @@
 <td align="middle" valign="middle"><h1>Dnsmasq</h1></td>
 <td align="right" valign="middle"><img border="0" src="http://www.thekelleys.org.uk/dnsmasq/images/icon.png" /></td></tr>
 </table>
+Dnsmasq provides network infrastructure for small networks: DNS, DHCP, router advertisement and network boot. It is designed to be 
+lightweight and have a small footprint, suitable for resource constrained routers and firewalls. It has also been widely used 
+for tethering on smartphones and portable hotspots, and to support virtual networking in virtualisation frameworks.
+Supported platforms include Linux (with glibc and uclibc), Android, *BSD, and Mac OS X. Dnsmasq is included in most
+Linux distributions and the ports systems of FreeBSD, OpenBSD and NetBSD. Dnsmasq provides full IPv6 support.
 
-Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP
- server. It is designed to provide DNS and, optionally, DHCP, to a 
- small network. It can serve the names of local machines which are 
- not in the global DNS. The DHCP server integrates with the DNS 
- server and allows machines with DHCP-allocated addresses
- to appear in the DNS with names configured either in each host or
- in a central configuration file. Dnsmasq supports static and dynamic 
- DHCP leases and BOOTP/TFTP/PXE for network booting of diskless machines.
 <P>
- Dnsmasq is targeted at home networks using NAT and 
-connected to the internet via a modem, cable-modem or ADSL
-connection but would be a good choice for any smallish network (up to
-1000 clients is known to work) where low
-resource use and ease of configuration are important. 
-<P>
-Supported platforms include Linux (with glibc and uclibc), Android, *BSD,
-Solaris and Mac OS X.
-Dnsmasq is included in at least the following Linux distributions:
-Gentoo, Debian, Slackware, Suse, Fedora,
-Smoothwall, IP-Cop, floppyfw, Firebox, LEAF, Freesco, fli4l,
-CoyoteLinux, Endian Firewall and
-Clarkconnect. It is also available as FreeBSD, OpenBSD and NetBSD ports and is used in
-Linksys wireless routers (dd-wrt, openwrt and the stock firmware) and the m0n0wall project.
-<P>
-Dnsmasq provides the following features:
+The DNS subsystem provides a local DNS server for the network, with forwarding of all query types to upstream recursive DNS servers and
+cacheing of common record types (A, AAAA, CNAME and PTR, also DNSKEY and DS when DNSSEC is enabled). 
 <DIR>
-
-<LI> 
-The DNS configuration of machines behind the firewall is simple and
-doesn't depend on the details of the ISP's dns servers
-<LI>
-Clients which try to do DNS lookups while  a modem link to the
-internet is down will time out immediately.
-</LI>
-<LI>
-Dnsmasq will serve names from the /etc/hosts file on the firewall
-machine: If the names of local machines are there, then they can all
-be addressed without having to maintain /etc/hosts on each machine.
-</LI>
-<LI>
-The integrated DHCP server supports static and dynamic DHCP leases and
-multiple networks and IP ranges. It works across BOOTP relays and
-supports DHCP options including RFC3397 DNS search lists.
-Machines which are configured by DHCP have their names automatically 
-included in the DNS and the names can specified by each machine or
-centrally by associating a name with a MAC address in the dnsmasq
-config file.
-</LI>
-<LI>
-Dnsmasq caches internet addresses (A records and AAAA records) and address-to-name
-mappings (PTR records), reducing the load on upstream servers and
-improving performance (especially on modem connections). 
-</LI>
-<LI>
-Dnsmasq can be configured to automatically pick up the addresses of
-its upstream nameservers from ppp or dhcp configuration. It will
-automatically reload this information if it changes. This facility
-will be of particular interest to maintainers of Linux firewall
-distributions since it allows dns configuration to be made automatic.
-</LI>
-<LI>
-On IPv6-enabled boxes, dnsmasq can both talk to upstream servers via IPv6 
-and offer DNS service via IPv6. On dual-stack (IPv4 and IPv6) boxes it talks
-both protocols and can even act as IPv6-to-IPv4 or IPv4-to-IPv6 forwarder.
-</LI>
-<LI>
-Dnsmasq can be configured to send queries for certain domains to
-upstream servers handling only those domains. This makes integration
-with private DNS systems easy.
-</LI>
-<LI>
-Dnsmasq supports MX and SRV records and can be configured to return MX records
-for any or all local machines.
-</LI>
+<LI>Local DNS names can be defined by reading /etc/hosts, by importing names from the DHCP subsystem, or by configuration of a wide range of useful record types.</LI>
+<LI>Upstream servers can be configured in a variety of convenient ways, including  dynamic configuration as these change on moving upstream network.
+<LI>Authoritative DNS mode allows local DNS names may be exported to zone in the global DNS. Dnsmasq acts as authoritative server for this zone, and also provides 
+zone transfer to secondaries for the zone, if required.</LI>
+<LI>DNSSEC validation may be performed on DNS replies from upstream nameservers, providing security against spoofing and cache poisoning.</LI>
+<LI>Specified sub-domains can be directed to their own upstream DNS servers, making VPN configuration easy.</LI>
+<LI>Internationalised domain names are supported.
 </DIR>
+<P>
+The DHCP subsystem supports DHCPv4, DHCPv6, BOOTP and PXE.
+<DIR>
+<LI> Both static and dynamic DHCP leases are supported, along with stateless mode in DHCPv6.</LI>
+<LI> The PXE system is a full PXE server, supporting netboot menus and multiple architecture support. It
+includes proxy-mode, where the PXE system co-operates with another DHCP server.</LI>
+<LI> There is a built in read-only TFTP server to support netboot.</LI>
+<LI> Machines which are configured by DHCP have their names automatically 
+included in the DNS and the names can specified by each machine or
+centrally by associating a name with a MAC address or UID in the dnsmasq
+configuration file.</LI>
+</DIR>
+<P>
+The Router Advertisement subsystem provides basic autoconfiguration for IPv6 hosts. It can be used stand-alone or in conjunction with DHCPv6.
+<DIR>
+<LI> The M and O bits are configurable, to control hosts' use of DHCPv6.</LI>
+<LI> Router advertisements can include the RDNSS option.</LI>
+<LI> There is a mode which uses name information from DHCPv4 configuration to provide DNS entries
+ for autoconfigured IPv6 addresses which would otherwise be anonymous.</LI>
+</DIR>
+<P>
+ 
+For extra compactness, unused features may be omitted at compile time.
+
 
 <H2>Get code.</H2>
 
@@ -102,7 +68,7 @@ the repo, or get a copy using git protocol with the command
 <PRE><TT>git clone git://thekelleys.org.uk/dnsmasq.git </TT></PRE>
 
 <H2>License.</H2>
-Dnsmasq is distributed under the GPL. See the file COPYING in the distribution 
+Dnsmasq is distributed under the GPL, version 2 or version 3 at your discretion. See the files COPYING and COPYING-v3 in the distribution 
 for details.
 
 <H2>Contact.</H2>
@@ -110,7 +76,21 @@ There is a dnsmasq mailing list at <A
 HREF="http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss">
 http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss</A> which should be the
 first location for queries, bugreports, suggestions etc.
-Dnsmasq was written by Simon Kelley. You can contact me at <A
+You can contact me at <A
 HREF="mailto:simon@thekelleys.org.uk">simon@thekelleys.org.uk</A>.
+
+<H2>Donations.</H2>
+Dnsmasq is mainly written and maintained by Simon Kelley. For most of its life, dnsmasq has been a spare-time project. 
+These days I'm working on it as my main activity. 
+I don't have an employer or anyone who pays me regularly to work on dnsmasq. If you'd like to make 
+a contribution towards my expenses, please use the donation button below.
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
+<input type="hidden" name="cmd" value="_s-xclick">
+<input type="hidden" name="hosted_button_id" value="V3X9GVW5GX6DA">
+<input type="image" src="https://www.paypalobjects.com/en_US/GB/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal – The safer, easier way to pay online.">
+<img alt="" border="0" src="https://www.paypalobjects.com/en_GB/i/scr/pixel.gif" width="1" height="1">
+</form>
+
+
 </BODY>
 

man/dnsmasq.8

@@ -13,7 +13,10 @@ Dnsmasq accepts DNS queries and either answers them from a small, local,
 cache or forwards them to a real, recursive, DNS server. It loads the
 contents of /etc/hosts so that local hostnames
 which do not appear in the global DNS can be resolved and also answers
-DNS queries for DHCP configured hosts. It can also act as the authoritative DNS server for one or more domains, allowing local names to appear in the global DNS.
+DNS queries for DHCP configured hosts. It can also act as the
+authoritative DNS server for one or more domains, allowing local names
+to appear in the global DNS. It can be configured to do DNSSEC
+validation.
 .PP
 The dnsmasq DHCP server supports static address assignments and multiple
 networks. It automatically
@@ -199,7 +202,20 @@ or
 .B --listen-address
 configuration, indeed
 .B --auth-server
-will overide these and provide a different DNS service on the specified interface. The <domain> is the "glue record". It should resolve in the global DNS to a A and/or AAAA record which points to the address dnsmasq is listening on.
+will overide these and provide a different DNS service on the
+specified interface. The <domain> is the "glue record". It should
+resolve in the global DNS to a 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.
+.TP
+.B --local-service
+Accept DNS queries only from hosts whose address is on a local subnet,
+ie a subnet for which an interface exists on the server. This option
+only has effect is there are no --interface --except-interface,
+--listen-address or --auth-server options. It is intended to be set as
+a default on installation, to allow unconfigured installations to be
+useful but also safe from being used for DNS amplification attacks.
 .TP 
 .B \-2, --no-dhcp-interface=<interface name>
 Do not provide DHCP or TFTP on the specified interface, but do provide DNS service.
@@ -407,6 +423,14 @@ source address specified but the port may be specified directly as
 part of the source address. Forcing queries to an interface is not
 implemented on all platforms supported by dnsmasq.
 .TP
+.B --rev-server=<ip-address>/<prefix-len>,<ipaddr>[#<port>][@<source-ip>|<interface>[#<port>]]
+This is functionally the same as 
+.B --server, 
+but provides some syntactic sugar to make specifying address-to-name queries easier. For example
+.B --rev-server=1.2.3.0/24,192.168.0.1
+is exactly equivalent to 
+.B --server=/3.2.1.in-addr.arpa/192.168.0.1
+.TP
 .B \-A, --address=/<domain>/[domain/]<ipaddr>
 Specify an IP address to return for any host in the given domains.
 Queries in the domains are never forwarded and always replied to
@@ -497,7 +521,7 @@ Return an NAPTR DNS record, as specified in RFC3403.
 Return a CNAME record which indicates that <cname> is really
 <target>. There are significant limitations on the target; it must be a
 DNS name which is known to dnsmasq from /etc/hosts (or additional
-hosts files), from DHCP or from another 
+hosts files), from DHCP, from --interface-name or from another 
 .B --cname.
 If the target does not satisfy this
 criteria, the whole cname is ignored. The cname must be unique, but it
@@ -509,11 +533,13 @@ record (which is always in the C_IN class). The value of the record is
 given by the hex data, which may be of the form 01:23:45 or 01 23 45 or
 012345 or any mixture of these.
 .TP
-.B --interface-name=<name>,<interface>
+.B --interface-name=<name>,<interface>[/4|/6]
 Return a DNS record associating the name with the primary address on
-the given interface. This flag specifies an A record for the given
+the given interface. This flag specifies an A or AAAA record for the given
 name in the same way as an /etc/hosts line, except that the address is
-not constant, but taken from the given interface. If the interface is
+not constant, but taken from the given interface. The interface may be
+followed by "/4" or "/6" to specify that only IPv4 or IPv6 addresses
+of the interface should be used. If the interface is
 down, not configured or non-existent, an empty record is returned. The
 matching PTR record is also created, mapping the interface address to
 the name. More than one name may be associated with an interface
@@ -543,7 +569,20 @@ server. The MAC address can only be added if the requestor is on the same
 subnet as the dnsmasq server. Note that the mechanism used to achieve this (an EDNS0 option)
 is not yet standardised, so this should be considered
 experimental. Also note that exposing MAC addresses in this way may
-have security and privacy implications. 
+have security and privacy implications. The warning about caching
+given for --add-subnet applies to --add-mac too.
+.TP 
+.B --add-subnet[[=<IPv4 prefix length>],<IPv6 prefix length>]
+Add the subnet address of the requestor to the DNS queries which are
+forwarded upstream. The amount of the address forwarded depends on the
+prefix length parameter: 32 (128 for IPv6) forwards the whole address,
+zero forwards none of it but still marks the request so that no
+upstream nameserver will add client address information either. The
+default is zero for both IPv4 and IPv6. Note that upstream nameservers
+may be configured to return different results based on this
+information, but the dnsmasq cache does not take account. If a dnsmasq
+instance is configured such that different results may be encountered,
+caching should be disabled.
 .TP
 .B \-c, --cache-size=<cachesize>
 Set the size of dnsmasq's cache. The default is 150 names. Setting the cache size to zero disables caching.
@@ -559,32 +598,89 @@ Set the maximum number of concurrent DNS queries. The default value is
 where this needs to be increased is when using web-server log file
 resolvers, which can generate large numbers of concurrent queries.
 .TP
+.B --dnssec
+Validate DNS replies and cache DNSSEC data. When forwarding DNS queries, dnsmasq requests the 
+DNSSEC records needed to validate the replies. The replies are validated and the result returned as 
+the Authenticated Data bit in the DNS packet. In addition the DNSSEC records are stored in the cache, making 
+validation by clients more efficient. Note that validation by clients is the most secure DNSSEC mode, but for
+clients unable to do validation, use of the AD bit set by dnsmasq is useful, provided that the network between 
+the dnsmasq server and the client is trusted. Dnsmasq must be compiled with HAVE_DNSSEC enabled, and DNSSEC
+trust anchors provided, see 
+.B --trust-anchor.
+Because the DNSSEC validation process uses the cache, it is not
+permitted to reduce the cache size below the default when DNSSEC is
+enabled. The nameservers upstream of dnsmasq must be DNSSEC-capable,
+ie capable of returning DNSSEC records with data. If they are not,
+then dnsmasq will not be able to determine the trusted status of
+answers. In the default mode, this menas that all replies will be
+marked as untrusted. If 
+.B --dnssec-check-unsigned
+is set and the upstream servers don't support DNSSEC, then DNS service will be entirely broken.
+.TP
+.B --trust-anchor=[<class>],<domain>,<key-tag>,<algorithm>,<digest-type>,<digest>
+Provide DS records to act a trust anchors for DNSSEC
+validation. Typically these will be the DS record(s) for Zone Signing
+key(s) of the root zone,
+but trust anchors for limited domains are also possible. The current
+root-zone trust anchors may be donwloaded from https://data.iana.org/root-anchors/root-anchors.xml 
+.TP
+.B --dnssec-check-unsigned
+As a default, dnsmasq does not check that unsigned DNS replies are
+legitimate: they are assumed to be valid and passed on (without the
+"authentic data" bit set, of course). This does not protect against an
+attacker forging unsigned replies for signed DNS zones, but it is
+fast. If this flag is set, dnsmasq will check the zones of unsigned
+replies, to ensure that unsigned replies are allowed in those
+zones. The cost of this is more upstream queries and slower
+performance. See also the warning about upstream servers in the
+section on 
+.B --dnssec
+.TP
+.B --dnssec-no-timecheck
+DNSSEC signatures are only valid for specified time windows, and should be rejected outside those windows. This generates an
+interesting chicken-and-egg problem for machines which don't have a hardware real time clock. For these machines to determine the correct 
+time typically requires use of NTP and therefore DNS, but validating DNS requires that the correct time is already known. Setting this flag
+removes the time-window checks (but not other DNSSEC validation.) only until the dnsmasq process receives SIGHUP. The intention is
+that dnsmasq should be started with this flag when the platform determines that reliable time is not currently available. As soon as 
+reliable time is established, a SIGHUP should be sent to dnsmasq, which enables time checking, and purges the cache of DNS records
+which have not been throughly checked.
+.TP
 .B --proxy-dnssec
-A resolver on a client machine can do DNSSEC validation in two ways: it
-can perform the cryptograhic operations on the reply it receives, or
-it can rely on the upstream recursive nameserver to do the validation
-and set a bit in the reply if it succeeds. Dnsmasq is not a DNSSEC
-validator, so it cannot perform the validation role of the recursive nameserver,
-but it can pass through the validation results from its own upstream
-nameservers. This option enables this behaviour. You should only do
-this if you trust all the configured upstream nameservers 
-.I and the network between you and them.
-If you use the first DNSSEC mode, validating resolvers in clients,
-this option is not required. Dnsmasq always returns all the data
-needed for a client to do validation itself. 
+Copy the DNSSEC Authenticated Data bit from upstream servers to downstream clients and cache it.  This is an 
+alternative to having dnsmasq validate DNSSEC, but it depends on the security of the network between 
+dnsmasq and the upstream servers, and the trustworthiness of the upstream servers.
+.TP
+.B --dnssec-debug
+Set debugging mode for the DNSSEC validation, set the Checking Disabled bit on upstream queries, 
+and don't convert replies which do not validate to responses with
+a return code of SERVFAIL. Note that
+setting this may affect DNS behaviour in bad ways, it is not an
+extra-logging flag and should not be set in production.
 .TP
 .B --auth-zone=<domain>[,<subnet>[/<prefix length>][,<subnet>[/<prefix length>].....]]
 Define a DNS zone for which dnsmasq acts as authoritative server. Locally defined DNS records which are in the domain
-will be served. A and AAAA records must be in one of the
-specified subnets, or in a subnet corresponding to a constructed DHCP
-range. (This can be overridden with 
-.B constructor-noauth:
-) The subnet(s) are also used to define in-addr.arpa and
-ipv6.arpa domains which are served for reverse-DNS queries. If not
+will be served. If subnet(s) are given, A and AAAA records must be in one of the
+specified subnets.
+
+As alternative to directly specifying the subnets, it's possible to
+give the name of an interface, in which case the subnets implied by
+that interface's configured addresses and netmask/prefix-length are
+used; this is useful when using constructed DHCP ranges as the actual
+address is dynamic and not known when configuring dnsmasq. The
+interface addresses may be confined to only IPv6 addresses using
+<interface>/6 or to only IPv4 using <interface>/4. This is useful when
+an interface has dynamically determined global IPv6 addresses which should
+appear in the zone, but RFC1918 IPv4 addresses which should not.
+Interface-name and address-literal subnet specifications may be used
+freely in the same --auth-zone declaration.
+
+The subnet(s) are also used to define in-addr.arpa and
+ip6.arpa domains which are served for reverse-DNS queries. If not
 specified, the prefix length defaults to 24 for IPv4 and 64 for IPv6.
 For IPv4 subnets, the prefix length should be have the value 8, 16 or 24
 unless you are familiar with RFC 2317 and have arranged the
-in-addr.arpa delegation accordingly. 
+in-addr.arpa delegation accordingly. Note that if no subnets are
+specified, then no reverse queries are answered.
 .TP
 .B --auth-soa=<serial>[,<hostmaster>[,<refresh>[,<retry>[,<expiry>]]]]
 Specify fields in the SOA record associated with authoritative
@@ -641,7 +737,8 @@ always optional. It is always
 allowed to have more than one dhcp-range in a single subnet. 
 
 For IPv6, the parameters are slightly different: instead of netmask
-and broadcast address, there is an optional prefix length. If not
+and broadcast address, there is an optional prefix length which must
+be equal to or larger then the prefix length on the local interface. If not
 given, this defaults to 64. Unlike the IPv4 case, the prefix length is not
 automatically derived from the interface configuration. The mimimum
 size of the prefix length is 64.
@@ -667,12 +764,6 @@ then the address can be simply ::
 .B --dhcp-range=::,constructor:eth0
 
 
-There is a variant of the constructor: syntax using the keyword
-.B constructor-noauth.
-See 
-.B --auth-zone
-for an explanation of this.
-
 The optional 
 .B set:<tag> 
 sets an alphanumeric label which marks this network so that
@@ -691,7 +782,7 @@ or from /etc/ethers will be served. A static-only subnet with address
 all zeros may be used as a "catch-all" address to enable replies to all
 Information-request packets on a subnet which is provided with
 stateless DHCPv6, ie
-.B --dhcp=range=::,static
+.B --dhcp-range=::,static
 
 For IPv4, the <mode> may be 
 .B proxy
@@ -890,9 +981,11 @@ and to set the time-server address to 192.168.0.4, do
 .B --dhcp-option = 42,192.168.0.4 
 or 
 .B --dhcp-option = option:ntp-server, 192.168.0.4
-The special address 0.0.0.0 (or [::] for DHCPv6) is taken to mean "the address of the
-machine running dnsmasq". Data types allowed are comma separated
-dotted-quad IP addresses, a decimal number, colon-separated hex digits
+The special address 0.0.0.0 is taken to mean "the address of the
+machine running dnsmasq". 
+
+Data types allowed are comma separated
+dotted-quad IPv4 addresses, []-wrapped IPv6 addresses, a decimal number, colon-separated hex digits
 and a text string. If the optional tags are given then
 this option is only sent when all the tags are matched.
 
@@ -908,7 +1001,9 @@ keyword, followed by the option number or option name. The IPv6 option
 name space is disjoint from the IPv4 option name space. IPv6 addresses
 in options must be bracketed with square brackets, eg. 
 .B --dhcp-option=option6:ntp-server,[1234::56]
- 
+For IPv6, [::] means "the global address of
+the machine running dnsmasq", whilst [fd00::] is replaced with the
+ULA, if it exists, and [fe80::] with the link-local address.
 
 Be careful: no checking is done that the correct type of data for the
 option number is sent, it is quite possible to
@@ -1247,6 +1342,11 @@ tried. This flag disables this check. Use with caution.
 Extra logging for DHCP: log all the options sent to DHCP clients and
 the tags used to determine them.
 .TP
+.B --quiet-dhcp, --quiet-dhcp6, --quiet-ra
+Suppress logging of the routine operation of these protocols. Errors and
+problems will still be logged. --quiet-dhcp and quiet-dhcp6 are
+over-ridden by --log-dhcp.
+.TP
 .B \-l, --dhcp-leasefile=<path>
 Use the specified file to store DHCP lease information.
 .TP 
@@ -1525,11 +1625,19 @@ the relevant link-local address of the machine running dnsmasq is sent
 as recursive DNS server. If provided, the DHCPv6 options dns-server and
 domain-search are used for RDNSS and DNSSL.
 .TP
-.B --force-fast-ra
-Normally, dnsmasq advertises a new IPv6 prefix frequently (every 10 seconds or so) for the first minute, and then
-drops back to sending "maintenance" advertisements every 10 minutes or so. This option forces dnsmasq to be always in 
-frequent RA mode. It's a bug workaround for mobile devices which go deaf to RAs during sleep and therefore 
-lose conectivity; with frequent RAs they recover in a reasonable time after wakeup.
+.B --ra-param=<interface>,[high|low],[[<ra-interval>],<router lifetime>]
+Set non-default values for router advertisements sent via an
+interface. The priority field for the router may be altered from the
+default of medium with eg
+.B --ra-param=eth0,high.
+The interval between router advertisements may be set (in seconds) with 
+.B --ra-param=eth0,60.
+The lifetime of the route may be changed or set to zero, which allows
+a router to advertise prefixes but not a route via itself. 
+.B --ra-parm=eth0,0,0
+(A value of zero for the interval means the default value.) All three parameters may be set at once.
+.B --ra-param=low,60,1200
+The interface field may include a wildcard.
 .TP
 .B --enable-tftp[=<interface>[,<interface>]]
 Enable the TFTP server function. This is deliberately limited to that
@@ -1607,6 +1715,13 @@ files. If extension(s) are given, any files which end in those
 extensions are skipped. Any files whose names end in ~ or start with . or start and end
 with # are always skipped. This flag may be given on the command
 line or in a configuration file.
+.TP
+.B --servers-file=<file>
+A special case of 
+.B --conf-file
+which differs in two respects. Firstly, only --server and --rev-server are allowed 
+in the configuration file included. Secondly, the file is re-read and the configuration
+therein is updated when dnsmasq recieves SIGHUP.
 .SH CONFIG FILE
 At startup, dnsmasq reads
 .I /etc/dnsmasq.conf,
@@ -1647,12 +1762,22 @@ When it receives a SIGUSR1,
 writes statistics to the system log. It writes the cache size,
 the number of names which have had to removed from the cache before
 they expired in order to make room for new names and the total number
-of names that have been inserted into the cache. For each upstream
+of names that have been inserted into the cache. The number of cache hits and 
+misses and the number of authoritative queries answered are also given. For each upstream
 server it gives the number of queries sent, and the number which
 resulted in an error. In 
 .B --no-daemon
 mode or when full logging is enabled (-q), a complete dump of the
-contents of the cache is made.
+contents of the cache is made. 
+
+The cache statistics are also available in the DNS as answers to 
+queries of class CHAOS and type TXT in domain bind. The domain names are cachesize.bind, insertions.bind, evictions.bind, 
+misses.bind, hits.bind, auth.bind and servers.bind. An example command to query this, using the 
+.B dig
+utility would be
+
+dig +short chaos txt cachesize.bind
+
 .PP 
 When it receives SIGUSR2 and it is logging direct to a file (see
 .B --log-facility
@@ -1756,7 +1881,7 @@ which has tags will be used in preference  to an untagged
 .B dhcp-option,
 provided that _all_ the tags match somewhere in the
 set collected as described above. The prefix '!' on a tag means 'not'
-so --dhcp=option=tag:!purple,3,1.2.3.4 sends the option when the
+so --dhcp-option=tag:!purple,3,1.2.3.4 sends the option when the
 tag purple is not in the set of valid tags. (If using this in a
 command line rather than a configuration file, be sure to escape !,
 which is a shell metacharacter)
@@ -1873,9 +1998,13 @@ Something like:
 .nf
 .B auth-server=our.zone.com,eth0
 .B interface-name=our.zone.com,eth0
-.B auth-zone=our.zone.com,1.2.3.0/24
+.B auth-zone=our.zone.com,1.2.3.0/24,eth0
 .fi
 
+(The "eth0" argument in auth-zone adds the subnet containing eth0's
+dynamic address to the zone, so that the interface-name returns the
+address in outside queries.)
+
 Our final configuration builds on that above, but also adds a
 secondary DNS server. This is another DNS server which learns the DNS data
 for the zone by doing zones transfer, and acts as a backup should
@@ -1904,7 +2033,7 @@ to particular hosts then
 will do so.
 
 Dnsmasq acts as an authoritative server for  in-addr.arpa and
-ipv6.arpa domains associated with the subnets given in auth-zone
+ip6.arpa domains associated with the subnets given in auth-zone
 declarations, so reverse (address to name) lookups can be simply
 configured with a suitable NS record, for instance in this example,
 where we allow 1.2.3.0/24 addresses.
@@ -1933,18 +2062,20 @@ IPv4 and IPv6 addresses from /etc/hosts (and
 .B --addn-hosts
 ) and
 .B --host-record
+and 
+.B --interface-name
 provided the address falls into one of the subnets specified in the
 .B --auth-zone.
-.PP
-Addresses specified by 
-.B --interface-name.
-In this case, the address is not contrained to a subnet from
-.B --auth-zone. 
-
 .PP
 Addresses of DHCP leases, provided the address falls into one of the subnets specified in the
+.B --auth-zone.
+(If contructed DHCP ranges are is use, which depend on the address dynamically 
+assigned to an interface, then the form of
 .B --auth-zone
-OR a constructed DHCP range. In the default mode, where a DHCP lease
+which defines subnets by the dynamic address of an interface should
+be used to ensure this condition is met.)
+.PP 
+In the default mode, where a DHCP lease
 has an unqualified name, and possibly a qualified name constructed
 using 
 .B --domain

man/fr/dnsmasq.8

@@ -403,7 +403,8 @@ noms de domains entourés par des '/', selon une syntaxe similaire à l'option
 Ne pas vérifier régulièrement si le fichier /etc/resolv.conf a été modifié.
 .TP
 .B --clear-on-reload
-Lorsque le fichier /etc/resolv.conf est relu, vider le cache DNS.
+Lorsque le fichier /etc/resolv.conf est relu, ou si les serveurs amonts sont
+configurés via DBus, vider le cache DNS.
 Cela est utile si les nouveaux serveurs sont susceptibles d'avoir des données
 différentes de celles stockées dans le cache.
 .TP
@@ -596,9 +597,9 @@ Retourne un enregistrement de type NAPTR, tel que spécifié dans le RFC3403.
 .TP
 .B --cname=<cname>,<cible>
 Retourne un enregistrement de type CNAME qui indique que <cname> est en
-réalité <cible>. Il existe des contraintes significatives sur la valeur
-de cible; il doit s'agir d'un nom DNS qui est connu de dnsmasq via /etc/hosts
-(ou un fichier hôtes additionnel), ou via DHCP, ou par un autre
+réalité <cible>. Il existe des contraintes importantes sur la valeur
+cible; il doit s'agir d'un nom DNS qui est connu de dnsmasq via /etc/hosts
+(ou un fichier hôtes additionnel), via DHCP, via interface--name ou par un autre
 .B --cname.
 Si une cible ne satisfait pas ces critères, le CNAME est ignoré. Le CNAME
 doit être unique, mais il est autorisé d'avoir plus d'un CNAME pointant
@@ -622,6 +623,24 @@ Plus d'un nom peut être associé à une interface donnée en répétant cette o
 plusieurs fois; dans ce cas, l'enregistrement inverse pointe vers le nom fourni
 dans la première instance de cette option.
 .TP
+.B --synth-domain=<domaine>,<plage d'adresses>[,<préfixe>]
+Créé des enregistrements A/AAAA ou PTR pour une plage d'adresses. Les
+enregistrements utilisent l'adresse ainsi que les points (ou les deux points
+dans le cas d'IPv6) remplacés par des tirets.
+
+Un exemple devrait rendre cela plus clair :
+La configuration
+.B --synth-domain=thekelleys.org.uk,192.168.0.0/24,internal-
+permet de retourner internal-192-168-0-56.thekelleys.org.uk lors d'une requête
+sur l'adresse 192.168.0.56 et vice-versa pour la requête inverse. La même
+logique s'applique pour IPv6, avec la particularité suivante : les adresses
+IPv6 pouvant commencer par '::', mais les noms DNS ne pouvant pas commencer
+par '-', si aucun préfixe n'est donné, un zéro est ajouté en début de nom.
+Ainsi, ::1 devient 0--1.
+
+La plage d'adresses peut-être de la forme
+<adresse IP>,<adresse IP> ou <adresse IP>/<masque réseau>
+.TP
 .B --add-mac
 Ajoute l'adresse MAC du requêteur aux requêtes DNS transmises aux serveurs
 amonts. Cela peut être utilisé dans un but de filtrage DNS par les serveurs
@@ -630,7 +649,20 @@ même sous-réseau que le serveur dnsmasq. Veuillez noter que le mécanisme
 utilisé pour effectuer cela (une option EDNS0) n'est pas encore standardisée,
 aussi cette fonctionalité doit être considérée comme expérimentale. Notez
 également qu'exposer les adresses MAC de la sorte peut avoir des implications
-en termes de sécurité et de vie privée.
+en termes de sécurité et de vie privée. L'avertissement donné pour --add-subnet
+s'applique également ici.
+.TP
+.B --add-subnet[[=<longueur de préfixe IPv4>],<longueur de préfixe IPv6>]
+Rajoute l'adresse de sous-réseau du requêteur aux requêtes DNS transmises
+aux serveurs amonts. La quantité d'adresses transmises dépend du paramètre
+longueur du préfixe : 32 (ou 128 dans le cas d'IPv6) transmet la totalité
+de l'adresse, 0 n'en transmet aucun mais marque néanmoins la requête ce qui
+fait qu'aucun serveur amont ne rajoutera d'adresse client. La valeur par
+défaut est zéro et pour IPv4 et pour IPv6. A noter que les serveurs amonts
+peuvent-être configurés pour retourner des valeurs différentes en fonction
+de cette information mais que le cache de dnsmasq n'en tient pas compte.
+Si une instance de dnsmasq est configurée de telle maniêre que des valeurs
+différentes pourraient-être rencontrés, alors le cache devrait être désactivé.
 .TP
 .B \-c, --cache-size=<taille>
 Définit la taille du cache de Dnsmasq. La valeur par défaut est de 150 noms.
@@ -665,15 +697,20 @@ Si vous utilisez le premier mode DNSSEC, la validation par le resolveur des
 clients, cette option n'est pas requise. Dnsmasq retourne toujours toutes les
 données nécessaires par un client pour effectuer la validation lui-même.
 .TP
-.B --auth-zone=<domaine>[,<sous-réseau>[,<sous-réseau>.....]]
+
+.B --auth-zone=<domaine>[,<sous-réseau>[/<longueur de préfixe>][,<sous-réseau>[/<longueur de préfixe>].....]]
 Définie une zone DNS pour laquelle dnsmasq agit en temps que serveur faisant
 autorité. Les enregistrements DNS définis localement et correspondant à ce
-domaine seront fournis, à ceci près que les enregistrements A et AAAA doivent
-se situer dans l'un des sous-réseaux précisés si ceux-ci sont définis, ou dans
-un réseau correspondant à une plage DHCP. Le ou les sous-réseaux sont également
-utilisé pour définir les domaines in-addr.arpa et ipv6.arpa servant à
-l'interrogation DNS inverse. Dans le cas d'IPv4, la longueur du masque de
-réseau doit être de 8, 16 ou 24.
+domaine seront fournis. Les enregistrements A et AAAA doivent se situer dans
+l'un des sous-réseaux définis, ou dans un réseau correspondant à une plage DHCP
+(ce comportement peut-être désactivé par
+.B constructor-noauth:
+). Le ou les sous-réseaux sont également utilisé(s) pour définir les domaines
+in-addr.arpa et ip6.arpa servant à l'interrogation DNS inverse. Si la longueur
+de préfixe n'est pas spécifiée, elle sera par défaut de 24 pour IPv4 et 64 pour
+IPv6. Dans le cas d'IPv4, la longueur du masque de réseau devrait-être de 8, 16
+ou 24, sauf si en cas de mise en place d'une délégation de la zone in-addr.arpa
+conforme au RFC 2317.
 .TP
 .B --auth-soa=<numéro de série>[,<mainteneur de zone (hostmaster)>[,<rafraichissement>[,<nombre de réessais>[,<expiration>]]]]
 Spécifie les champs de l'enregistrement de type SOA (Start Of Authority)
@@ -762,6 +799,27 @@ rendues obsolètes puis supprimées lorsque l'adress est rendue obsolète puis
 supprimée. Le nom de l'interface peut être spécifié avec un caractère joker '*'
 final.
 
+provoque la recherche d'adresses sur eth0 et crée une plage allant de
+<réseau>::1 à <réseau>:400. Si l'interface est assignée à
+plus d'un réseau, les plages correspondantes seront respectivement
+automatiquement créées, rendues obsolètes et supprimées lorsque l'adresse
+est rendue obsolète et supprimée. Le nom de l'interface peut être spécifié avec
+un caractère joker '*' final. Les adresses autoconfigurées, privées ou
+obsolètes ne conviennent pas.
+
+Si une plage dhcp-range est uniquement utilisée pour du DHCP sans-état
+("stateless") ou de l'autoconfiguration sans état ("SLAAC"), alors l'adresse
+peut-être indiquée sous la forme '::'
+
+.B --dhcp-range=::,constructor:eth0
+
+Il existe une variante de la syntaxe constructor: qui consiste en l'utilisation
+du mot-clef
+.B constructor-noauth.
+Voir
+.B --auth-zone
+pour des explications à ce sujet.
+
 L'identifiant de label optionnel
 .B set:<label>
 fournie une étiquette alphanumérique qui identifie ce réseau, afin de permettre
@@ -853,9 +911,9 @@ sous-réseau qu'une plage dhcp-range valide. Pour les sous-réseaux qui n'ont pa
 besoin d'adresses dynamiquement allouées, utiliser le mot-clef "static" dans la
 déclaration de plage d'adresses dhcp-range.
 
-Il est possible
-d'utiliser des identifiants clients plutôt que des adresses matérielles pour
-identifier les hôtes, en préfixant par ceux-ci par 'id:'. Ainsi, 
+Il est possible d'utiliser des identifiants clients (appellé "DUID client" dans
+le monde IPv6) plutôt que des adresses matérielles pour identifier les hôtes,
+en préfixant ceux-ci par 'id:'. Ainsi, 
 .B --dhcp-host=id:01:02:03:04,..... 
 réfère à l'hôte d'identifiant 01:02:03:04. Il est également possible de
 spécifier l'identifiant client sous la forme d'une chaîne de caractères, comme
@@ -871,11 +929,13 @@ Les adresses IPv6 peuvent ne contenir que la partie identifiant de client :
 .B --dhcp-host=laptop,[::56]
 Dans ce cas, lorsque des plages dhcp sont définies automatiquement par le biais
 de constructeurs, la partie réseau correspondante est rajoutée à l'adresse.
-A noter que pour le DHCP IPv6, l'adresse matérielle n'est en principe pas
-disponible, aussi un client doit-être identifié par un identifiant de client
-(appellé "DUID client") ou un nom d'hôte.
 
-L'option spéciale id:* signifie : "ignorer tout identifiant client et n'utiliser
+A noter que pour le DHCP IPv6, l'adresse matérielle n'est pas toujours
+disponible, bien que ce soit toujours le cas pour des clients directement
+connectés (sur le même domaine de broadcast) ou pour des clients utilisant
+des relais DHCP qui supportent la RFC 6939.
+
+En DHCPv4, l'option spéciale id:* signifie : "ignorer tout identifiant client et n'utiliser
 que l'adresse matérielle". Cela est utile lorsqu'un client présente un
 identifiant client mais pas les autres.
 
@@ -1079,6 +1139,40 @@ quelques rares cas, perturber des clients vieux ou défectueux. Cette
 option force le comportement à l'utilisation des valeurs "simples et sûres"
 afin d'éviter des problèmes dans de tels cas.
 .TP
+.B --dhcp-relay=<adresse locale>,<adresse de serveur>[,<interface]
+Configure dnsmasq en temps que relais DHCP.  L'adresse locale est une
+adresse allouée à l'une interface de la machine sur laquelle tourne dnsmasq.
+Toutes les requêtes DHCP arrivant sur cette interface seront relayées au
+serveur DHCP distant correspondant à l'adresse de serveur indiquée. Il est
+possible de relayer depuis une unique adresse locale vers différents serveurs
+distant en spécifiant plusieurs fois l'option dhcp-relay avec la même adresse
+locale et différentes adresses de serveur. L'adresse de serveur doit-être
+sous forme numérique. Dans le cas de DHCPv6, l'adresse de serveur peut-être
+l'adresse de multicast ff05::1:3 correspondant à tous les serveurs DHCP. Dans
+ce cas, l'interface doit-étre spécifiée et ne peut comporter de caractère
+joker. Elle sera utilisée pour indiquer l'interface à partir de laquelle le
+multicast pourra atteindre le serveur DHCP.
+
+Le contrôle d'accès pour les clients DHCP suivent les mêmes règles que pour
+les serveurs DHCP : voir --interface, --except-interface, etc. Le nom
+d'interface optionel dans l'option dhcp-relay comporte une autre fonction :
+il contrôle l'interface sur laquelle la réponse du serveur sera acceptée. Cela
+sert par exemple dans des configurations à 3 interfaces : une à partir de
+laquelle les requêtes sont relayées, une seconde permettant de se connecter à
+un serveur DHCP, et une troisième reliée à un réseau non-sécurisé tel
+qu'internet. Cela permet d'éviter l'arrivée de requêtes usurpées via cette
+troisième interface.
+
+Il est permis de configurer dnsmasq pour fonctionner comme serveur DHCP sur
+certaines interfaces et en temps que relais sur d'autres. Cependant, même s'il
+est possible de configurer dnsmasq de telle manière qu'il soit à la fois
+serveur et relais pour une même interface, cela n'est pas supporté et la
+fonction de relais prendra le dessus.
+
+Le relais DHCPv4 et le relais DHCPv6 sont tous les deux supportés, mais il
+n'est pas possible de relayer des requêtes DHCPv4 à un serveur DHCPv6 et
+vice-versa.
+.TP
 .B \-U, --dhcp-vendorclass=set:<label>,[enterprise:<numéro IANA d'enterprise>,]<classe de vendeur>
 
 Associe une chaîne de classe de vendeur à un label. La plupart
@@ -1113,7 +1207,7 @@ d'impression différent pour les hôtes de la classe "comptes" et ceux de la
 classe "ingénierie".
 .TP
 .B \-4, --dhcp-mac=set:<label>,<adresse MAC>
-(IPv4 uniquement) Associe une adresse matérielle (MAC) à un label. L'adresse
+Associe une adresse matérielle (MAC) à un label. L'adresse
 matérielle peut inclure des jokers. Par exemple
 .B --dhcp-mac=set:3com,01:34:23:*:*:*
 permet de définir le label "3com" pour n'importe quel hôte dont l'adresse
@@ -1354,6 +1448,11 @@ Traces additionnelles pour le service DHCP : enregistre toutes les options
 envoyées aux clients DHCP et les labels utilisés pour la
 détermination de celles-ci.
 .TP
+.B --quiet-dhcp, --quiet-dhcp6, --quiet-ra
+Supprime les logs des opérations de routine des protocoles concernés. Les
+erreurs et les problèmes seront toujours enregistrés. L'option --log-dhcp
+prends le pas sur --quiet-dhcp et quiet-dhcp6.
+.TP
 .B \-l, --dhcp-leasefile=<chemin de fichier>
 Utilise le fichier dont le chemin est fourni pour stocker les informations de
 baux DHCP.
@@ -1447,6 +1546,8 @@ pour chaque appel au script.
 DNSMASQ_IAID contenant l'IAID pour le bail. Si le bail est une allocation
 temporaire, cela est préfixé par le caractère 'T'.
 
+DNSMASQ_MAC contient l'adresse MAC du client, si celle-ci est connue.
+
 A noter que le nom d'hôte fourni, la classe de vendeur ou les données de classe
 d'utilisateur sont uniquement fournies pour les actions "add" ou l'action "old"
 lorsqu'un hôte reprend un bail existant, puisque ces informations ne sont pas
@@ -1649,11 +1750,30 @@ dnsmasq est spécifiée comme DNS récursif. Si elles sont fournies, les
 options dns-server et domain-search sont utilisées respectivement pour RDNSS et
 DNSSL.
 .TP
-.B --enable-tftp
+.B --ra-param=<interface>,[high|low],[[<intervalle d'annonce routeur>],<durée de vie route>]
+Configure pour une interface donnée des valeurs pour les annonces routeurs
+différentes des valeurs par défaut. La valeur par défaut du champ priorité
+pour le routeur peut-être changée de "medium" (moyen) à "high" (haute) ou
+"low" (basse). Par exemple :
+.B --ra-param=eth0,high.
+Un intervalle (en secondes) entre les annonces routeur peut-être fourni par :
+.B --ra-param=eth0,60.
+La durée de vie de la route peut-être changée ou mise à zéro, auquel cas 
+le routeur peut annoncer les préfixes mais pas de route :
+.B --ra-parm=eth0,0,0
+(une valeur de zéro pour l'intervalle signifie qu'il garde la valeur par défaut).
+Ces trois paramètres peuvent-être configurés en une fois :
+.B --ra-param=low,60,1200
+La valeur pour l'interface peut inclure un caractère joker.
+.TP
+.B --enable-tftp[=<interface>[,<interface>]]
 Active la fonction serveur TFTP. Celui-ci est de manière délibérée limité aux
 fonctions nécessaires au démarrage par le réseau ("net-boot") d'un client. Seul
 un accès en lecture est possible; les extensions tsize et blksize sont supportées
-(tsize est seulement supporté en mode octet).
+(tsize est seulement supporté en mode octet). Sans argument optionel, le service
+TFTP est fourni sur les mêmes interfaces que le service DHCP. Si une liste
+d'interfaces est fournie, cela définit les interfaces sur lesquelles le
+service TFTP sera activé.
 .TP
 .B --tftp-root=<répertoire>[,<interface>]
 Les fichiers à fournir dans les transferts TFTP seront cherchés en prenant le
@@ -2066,7 +2186,7 @@ spécifiques, vous pouvez le faire via :
 .fi
 
 Dnsmasq joue le rôle de serveur faisant autorité pour les domaines in-addr.arpa
-et ipv6.arpa associés aux sous-réseaux définis dans la déclaration de zone
+et ip6.arpa associés aux sous-réseaux définis dans la déclaration de zone
 auth-zone, ce qui fait que les requêtes DNS inversées (de l'adresse vers
 le nom) peuvent-simplement être configurées avec un enregistrement NS
 adéquat. Par exemple, comme nous définissons plus haut les adresses

src/auth.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -18,27 +18,26 @@
 
 #ifdef HAVE_AUTH
 
-static struct subnet *filter_zone(struct auth_zone *zone, int flag, struct all_addr *addr_u)
+static struct addrlist *find_subnet(struct auth_zone *zone, int flag, struct all_addr *addr_u)
 {
-  struct subnet *subnet;
+  struct addrlist *subnet;
 
   for (subnet = zone->subnet; subnet; subnet = subnet->next)
     {
-      if (subnet->is6 && (flag & F_IPV4))
-	continue;
-
-      if (!subnet->is6)
+      if (!(subnet->flags & ADDRLIST_IPV6))
 	{
-	  struct in_addr addr = addr_u->addr.addr4;
-	  struct in_addr mask;
+	  struct in_addr netmask, addr = addr_u->addr.addr4;
+
+	  if (!(flag & F_IPV4))
+	    continue;
 	  
-	  mask.s_addr = htonl(~((1 << (32 - subnet->prefixlen)) - 1));
+	  netmask.s_addr = htonl(~((1 << (32 - subnet->prefixlen)) - 1));
 	  
-	  if  (is_same_net(addr, subnet->addr4, mask))
+	  if  (is_same_net(addr, subnet->addr.addr.addr4, netmask))
 	    return subnet;
 	}
 #ifdef HAVE_IPV6
-      else if (is_same_net6(&(addr_u->addr.addr6), &subnet->addr6, subnet->prefixlen))
+      else if (is_same_net6(&(addr_u->addr.addr6), &subnet->addr.addr.addr6, subnet->prefixlen))
 	return subnet;
 #endif
 
@@ -46,23 +45,16 @@ static struct subnet *filter_zone(struct auth_zone *zone, int flag, struct all_a
   return NULL;
 }
 
-static int filter_constructed_dhcp(struct auth_zone *zone, int flag, struct all_addr *addr_u)
+static int filter_zone(struct auth_zone *zone, int flag, struct all_addr *addr_u)
 {
-#ifdef HAVE_DHCP6
-  struct dhcp_context *context;
-
-  if (flag & F_IPV6)
-    for (context = daemon->dhcp6; context; context = context->next)
-      if ((context->flags & CONTEXT_CONSTRUCTED) &&
-	  !(context->flags & CONTEXT_NOAUTH) &&
-	  is_same_net6(&(addr_u->addr.addr6), &context->start6, context->prefix))
-	return 1;
-#endif
+  /* No zones specified, no filter */
+  if (!zone->subnet)
+    return 1;
   
-  return filter_zone(zone, flag, addr_u) != NULL;
+  return find_subnet(zone, flag, addr_u) != NULL;
 }
 
-static int in_zone(struct auth_zone *zone, char *name, char **cut)
+int in_zone(struct auth_zone *zone, char *name, char **cut)
 {
   size_t namelen = strlen(name);
   size_t domainlen = strlen(zone->domain);
@@ -89,7 +81,7 @@ static int in_zone(struct auth_zone *zone, char *name, char **cut)
 }
 
 
-size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t now, union mysockaddr *peer_addr) 
+size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t now, union mysockaddr *peer_addr, int local_query) 
 {
   char *name = daemon->namebuff;
   unsigned char *p, *ansp;
@@ -97,9 +89,9 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
   int nameoffset, axfroffset = 0;
   int q, anscount = 0, authcount = 0;
   struct crec *crecp;
-  int  auth = 1, trunc = 0, nxdomain = 1, soa = 0, ns = 0, axfr = 0;
+  int  auth = !local_query, trunc = 0, nxdomain = 1, soa = 0, ns = 0, axfr = 0;
   struct auth_zone *zone = NULL;
-  struct subnet *subnet = NULL;
+  struct addrlist *subnet = NULL;
   char *cut;
   struct mx_srv_record *rec, *move, **up;
   struct txt_record *txt;
@@ -110,7 +102,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
   
   if (ntohs(header->qdcount) == 0 || OPCODE(header) != QUERY )
     return 0;
-  
+
   /* determine end of question section (we put answers there) */
   if (!(ansp = skip_questions(header, qlen)))
     return 0; /* bad packet */
@@ -144,16 +136,19 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	  if (!(flag = in_arpa_name_2_addr(name, &addr)))
 	    continue;
 
-	  for (zone = daemon->auth_zones; zone; zone = zone->next)
-	    if ((subnet = filter_zone(zone, flag, &addr)))
-	      break;
-
-	  if (!zone)
+	  if (!local_query)
 	    {
-	      auth = 0;
-	      continue;
+	      for (zone = daemon->auth_zones; zone; zone = zone->next)
+		if ((subnet = find_subnet(zone, flag, &addr)))
+		  break;
+	      
+	      if (!zone)
+		{
+		  auth = 0;
+		  continue;
+		}
 	    }
-	  
+
 	  intr = NULL;
 
 	  if (flag == F_IPV4)
@@ -161,8 +156,8 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	      {
 		struct addrlist *addrlist;
 		
-		for (addrlist = intr->addr4; addrlist; addrlist = addrlist->next)
-		  if (addr.addr.addr4.s_addr == addrlist->addr.addr.addr4.s_addr)
+		for (addrlist = intr->addr; addrlist; addrlist = addrlist->next)
+		  if (!(addrlist->flags & ADDRLIST_IPV6) && addr.addr.addr4.s_addr == addrlist->addr.addr.addr4.s_addr)
 		    break;
 		
 		if (addrlist)
@@ -177,8 +172,8 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	      {
 		struct addrlist *addrlist;
 		
-		for (addrlist = intr->addr6; addrlist; addrlist = addrlist->next)
-		  if (IN6_ARE_ADDR_EQUAL(&addr.addr.addr6, &addrlist->addr.addr.addr6))
+		for (addrlist = intr->addr; addrlist; addrlist = addrlist->next)
+		  if ((addrlist->flags & ADDRLIST_IPV6) && IN6_ARE_ADDR_EQUAL(&addr.addr.addr6, &addrlist->addr.addr.addr6))
 		    break;
 		
 		if (addrlist)
@@ -194,7 +189,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	      if (in_zone(zone, intr->name, NULL))
 		{	
 		  found = 1;
-		  log_query(flag| F_REVERSE | F_CONFIG, intr->name, &addr, NULL);
+		  log_query(flag | F_REVERSE | F_CONFIG, intr->name, &addr, NULL);
 		  if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, 
 					  daemon->auth_ttl, NULL,
 					  T_PTR, C_IN, "d", intr->name))
@@ -236,8 +231,10 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		    
 	    } while ((crecp = cache_find_by_addr(crecp, &addr, now, flag)));
 
-	  if (!found)
-	    log_query(flag | F_NEG | F_NXDOMAIN | F_REVERSE | F_AUTH, NULL, &addr, NULL);
+	  if (found)
+	    nxdomain = 0;
+	  else
+	    log_query(flag | F_NEG | F_NXDOMAIN | F_REVERSE | (auth ? F_AUTH : 0), NULL, &addr, NULL);
 
 	  continue;
 	}
@@ -358,25 +355,22 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	 if (hostname_isequal(name, intr->name))
 	   {
 	     struct addrlist *addrlist;
-
-	     addrlist = intr->addr4;
-#ifdef HAVE_IPV6
-	     if (qtype == T_AAAA)
-	       addrlist = intr->addr6;
-#endif	
+	     
 	     nxdomain = 0;
-	
-	     for (; addrlist; addrlist = addrlist->next)  
-	       if (filter_constructed_dhcp(zone, flag, &addrlist->addr))
-		 {
-		   found = 1;
-		   log_query(F_FORWARD | F_CONFIG | flag, name, &addrlist->addr, NULL);
-		   if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, 
-					   daemon->auth_ttl, NULL, qtype, C_IN, 
-					   qtype == T_A ? "4" : "6", &addrlist->addr))
-		     anscount++;
-		 }
-	   }
+	     
+	     if (flag)
+	       for (addrlist = intr->addr; addrlist; addrlist = addrlist->next)  
+		 if (((addrlist->flags & ADDRLIST_IPV6)  ? T_AAAA : T_A) == qtype &&
+		     (local_query || filter_zone(zone, flag, &addrlist->addr)))
+		   {
+		     found = 1;
+		     log_query(F_FORWARD | F_CONFIG | flag, name, &addrlist->addr, NULL);
+		     if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, 
+					     daemon->auth_ttl, NULL, qtype, C_IN, 
+					     qtype == T_A ? "4" : "6", &addrlist->addr))
+		       anscount++;
+		   }
+	     }
        
        for (a = daemon->cnames; a; a = a->next)
 	 if (hostname_isequal(name, a->alias) )
@@ -390,7 +384,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	       }
 	     found = 1;
 	     if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, 
-				     daemon->auth_ttl, NULL,
+				     daemon->auth_ttl, &nameoffset,
 				     T_CNAME, C_IN, "d", name))
 	       anscount++;
 	     
@@ -403,7 +397,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	  
 	  if (qtype == T_SOA)
 	    {
-	      soa = 1; /* inhibits auth section */
+	      auth = soa = 1; /* inhibits auth section */
 	      found = 1;
 	      log_query(F_RRNAME | F_AUTH, zone->domain, NULL, "<SOA>");
 	    }
@@ -436,6 +430,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		  return 0;
 		}
 	       	      
+	      auth = 1;
 	      soa = 1; /* inhibits auth section */
 	      ns = 1; /* ensure we include NS records! */
 	      axfr = 1;
@@ -445,6 +440,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	    }
       	  else if (qtype == T_NS)
 	    {
+	      auth = 1;
 	      ns = 1; /* inhibits auth section */
 	      found = 1;
 	      log_query(F_RRNAME | F_AUTH, zone->domain, NULL, "<NS>"); 
@@ -462,7 +458,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		  { 
 		    nxdomain = 0;
 		    if ((crecp->flags & flag) && 
-			(filter_constructed_dhcp(zone, flag, &(crecp->addr.addr))))
+			(local_query || filter_zone(zone, flag, &(crecp->addr.addr))))
 		      {
 			*cut = '.'; /* restore domain part */
 			log_query(crecp->flags, name, &crecp->addr.addr, record_source(crecp->uid));
@@ -485,7 +481,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	    do
 	      { 
 		 nxdomain = 0;
-		 if ((crecp->flags & flag) && filter_constructed_dhcp(zone, flag, &(crecp->addr.addr)))
+		 if ((crecp->flags & flag) && (local_query || filter_zone(zone, flag, &(crecp->addr.addr))))
 		   {
 		     log_query(crecp->flags, name, &crecp->addr.addr, record_source(crecp->uid));
 		     found = 1;
@@ -516,9 +512,9 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	  
 	  authname = name;
 
-	  if (!subnet->is6)
+	  if (!(subnet->flags & ADDRLIST_IPV6))
 	    {
-	      in_addr_t a = ntohl(subnet->addr4.s_addr) >> 8;
+	      in_addr_t a = ntohl(subnet->addr.addr.addr4.s_addr) >> 8;
 	      char *p = name;
 	      
 	      if (subnet->prefixlen >= 24)
@@ -538,7 +534,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 	      
 	      for (i = subnet->prefixlen-1; i >= 0; i -= 4)
 		{ 
-		  int dig = ((unsigned char *)&subnet->addr6)[i>>3];
+		  int dig = ((unsigned char *)&subnet->addr.addr.addr6)[i>>3];
 		  p += sprintf(p, "%.1x.", (i>>2) & 1 ? dig & 15 : dig >> 4);
 		}
 	      p += sprintf(p, "ip6.arpa");
@@ -674,15 +670,17 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		if (cut)
 		  *cut = 0;
 		
-		for (addrlist = intr->addr4; addrlist; addrlist = addrlist->next) 
-		  if (filter_constructed_dhcp(zone, F_IPV4,  &addrlist->addr) && 
+		for (addrlist = intr->addr; addrlist; addrlist = addrlist->next) 
+		  if (!(addrlist->flags & ADDRLIST_IPV6) &&
+		      (local_query || filter_zone(zone, F_IPV4, &addrlist->addr)) && 
 		      add_resource_record(header, limit, &trunc, -axfroffset, &ansp, 
 					  daemon->auth_ttl, NULL, T_A, C_IN, "4", cut ? intr->name : NULL, &addrlist->addr))
 		    anscount++;
 		
 #ifdef HAVE_IPV6
-		for (addrlist = intr->addr6; addrlist; addrlist = addrlist->next) 
-		  if (filter_constructed_dhcp(zone, F_IPV6,  &addrlist->addr) &&
+		for (addrlist = intr->addr; addrlist; addrlist = addrlist->next) 
+		  if ((addrlist->flags & ADDRLIST_IPV6) && 
+		      (local_query || filter_zone(zone, F_IPV6, &addrlist->addr)) &&
 		      add_resource_record(header, limit, &trunc, -axfroffset, &ansp, 
 					  daemon->auth_ttl, NULL, T_AAAA, C_IN, "6", cut ? intr->name : NULL, &addrlist->addr))
 		    anscount++;
@@ -722,7 +720,8 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		  if ((crecp->flags & F_DHCP) && !option_bool(OPT_DHCP_FQDN))
 		    {
 		      char *cache_name = cache_get_name(crecp);
-		      if (!strchr(cache_name, '.') && filter_constructed_dhcp(zone, (crecp->flags & (F_IPV6 | F_IPV4)), &(crecp->addr.addr)))
+		      if (!strchr(cache_name, '.') && 
+			  (local_query || filter_zone(zone, (crecp->flags & (F_IPV6 | F_IPV4)), &(crecp->addr.addr))))
 			{
 			  qtype = T_A;
 #ifdef HAVE_IPV6
@@ -739,7 +738,8 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 		  if ((crecp->flags & F_HOSTS) || (((crecp->flags & F_DHCP) && option_bool(OPT_DHCP_FQDN))))
 		    {
 		      strcpy(name, cache_get_name(crecp));
-		      if (in_zone(zone, name, &cut) && filter_constructed_dhcp(zone, (crecp->flags & (F_IPV6 | F_IPV4)), &(crecp->addr.addr)))
+		      if (in_zone(zone, name, &cut) && 
+			  (local_query || filter_zone(zone, (crecp->flags & (F_IPV6 | F_IPV4)), &(crecp->addr.addr))))
 			{
 			  qtype = T_A;
 #ifdef HAVE_IPV6
@@ -774,8 +774,17 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
   /* done all questions, set up header and return length of result */
   /* clear authoritative and truncated flags, set QR flag */
   header->hb3 = (header->hb3 & ~(HB3_AA | HB3_TC)) | HB3_QR;
-  /* clear RA flag */
-  header->hb4 &= ~HB4_RA;
+
+  if (local_query)
+    {
+      /* set RA flag */
+      header->hb4 |= HB4_RA;
+    }
+  else
+    {
+      /* clear RA flag */
+      header->hb4 &= ~HB4_RA;
+    }
 
   /* authoritive */
   if (auth)
@@ -785,7 +794,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
   if (trunc)
     header->hb3 |= HB3_TC;
   
-  if (anscount == 0 && auth && nxdomain)
+  if ((auth || local_query) && nxdomain)
     SET_RCODE(header, NXDOMAIN);
   else
     SET_RCODE(header, NOERROR); /* no error */

src/blockdata.c

@@ -0,0 +1,151 @@
+/* dnsmasq is Copyright (c) 2000-2014 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
+   the Free Software Foundation; version 2 dated June, 1991, or
+   (at your option) version 3 dated 29 June, 2007.
+ 
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+     
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dnsmasq.h"
+
+#ifdef HAVE_DNSSEC
+
+static struct blockdata *keyblock_free;
+static unsigned int blockdata_count, blockdata_hwm, blockdata_alloced;
+
+static void blockdata_expand(int n)
+{
+  struct blockdata *new = whine_malloc(n * sizeof(struct blockdata));
+  
+  if (n > 0 && new)
+    {
+      int i;
+      
+      new[n-1].next = keyblock_free;
+      keyblock_free = new;
+
+      for (i = 0; i < n - 1; i++)
+	new[i].next = &new[i+1];
+
+      blockdata_alloced += n;
+    }
+}
+
+/* Preallocate some blocks, proportional to cachesize, to reduce heap fragmentation. */
+void blockdata_init(void)
+{
+  keyblock_free = NULL;
+  blockdata_alloced = 0;
+  blockdata_count = 0;
+  blockdata_hwm = 0;
+
+  /* Note that daemon->cachesize is enforced to have non-zero size if OPT_DNSSEC_VALID is set */  
+  if (option_bool(OPT_DNSSEC_VALID))
+    blockdata_expand((daemon->cachesize * 100) / sizeof(struct blockdata));
+}
+
+void blockdata_report(void)
+{
+  if (option_bool(OPT_DNSSEC_VALID))
+    my_syslog(LOG_INFO, _("DNSSEC memory in use %u, max %u, allocated %u"), 
+	      blockdata_count * sizeof(struct blockdata),  
+	      blockdata_hwm * sizeof(struct blockdata),  
+	      blockdata_alloced * sizeof(struct blockdata));
+} 
+
+struct blockdata *blockdata_alloc(char *data, size_t len)
+{
+  struct blockdata *block, *ret = NULL;
+  struct blockdata **prev = &ret;
+  size_t blen;
+
+  while (len > 0)
+    {
+      if (!keyblock_free)
+	blockdata_expand(50);
+      
+      if (keyblock_free)
+	{
+	  block = keyblock_free;
+	  keyblock_free = block->next;
+	  blockdata_count++; 
+	}
+      else
+	{
+	  /* failed to alloc, free partial chain */
+	  blockdata_free(ret);
+	  return NULL;
+	}
+       
+      if (blockdata_hwm < blockdata_count)
+	blockdata_hwm = blockdata_count; 
+      
+      blen = len > KEYBLOCK_LEN ? KEYBLOCK_LEN : len;
+      memcpy(block->key, data, blen);
+      data += blen;
+      len -= blen;
+      *prev = block;
+      prev = &block->next;
+      block->next = NULL;
+    }
+  
+  return ret;
+}
+
+void blockdata_free(struct blockdata *blocks)
+{
+  struct blockdata *tmp;
+  
+  if (blocks)
+    {
+      for (tmp = blocks; tmp->next; tmp = tmp->next)
+	blockdata_count--;
+      tmp->next = keyblock_free;
+      keyblock_free = blocks; 
+      blockdata_count--;
+    }
+}
+
+/* if data == NULL, return pointer to static block of sufficient size */
+void *blockdata_retrieve(struct blockdata *block, size_t len, void *data)
+{
+  size_t blen;
+  struct  blockdata *b;
+  void *new, *d;
+  
+  static unsigned int buff_len = 0;
+  static unsigned char *buff = NULL;
+   
+  if (!data)
+    {
+      if (len > buff_len)
+	{
+	  if (!(new = whine_malloc(len)))
+	    return NULL;
+	  if (buff)
+	    free(buff);
+	  buff = new;
+	}
+      data = buff;
+    }
+  
+  for (d = data, b = block; len > 0 && b;  b = b->next)
+    {
+      blen = len > KEYBLOCK_LEN ? KEYBLOCK_LEN : len;
+      memcpy(d, b->key, blen);
+      d += blen;
+      len -= blen;
+    }
+
+  return data;
+}
+ 
+#endif

src/bpf.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -19,9 +19,9 @@
 #if defined(HAVE_BSD_NETWORK) || defined(HAVE_SOLARIS_NETWORK)
 #include <ifaddrs.h>
 
-#if defined(HAVE_BSD_NETWORK) && !defined(__APPLE__)
 #include <sys/param.h>
 #include <sys/sysctl.h>
+#include <net/if.h>
 #include <net/route.h>
 #include <net/if_dl.h>
 #include <netinet/if_ether.h>
@@ -29,6 +29,9 @@
 #  include <net/if_var.h> 
 #endif
 #include <netinet/in_var.h>
+#ifdef HAVE_IPV6
+#  include <netinet6/in6_var.h>
+#endif
 
 #ifndef SA_SIZE
 #define SA_SIZE(sa)                                             \
@@ -37,6 +40,13 @@
         1 + ( (((struct sockaddr *)(sa))->sa_len - 1) | (sizeof(long) - 1) ) )
 #endif
 
+#ifdef HAVE_BSD_NETWORK
+static int del_family = 0;
+static struct all_addr del_addr;
+#endif
+
+#if defined(HAVE_BSD_NETWORK) && !defined(__APPLE__)
+
 int arp_enumerate(void *parm, int (*callback)())
 {
   int mib[6];
@@ -87,7 +97,7 @@ int arp_enumerate(void *parm, int (*callback)())
 
   return 1;
 }
-#endif
+#endif /* defined(HAVE_BSD_NETWORK) && !defined(__APPLE__) */
 
 
 int iface_enumerate(int family, void *parm, int (*callback)())
@@ -128,6 +138,10 @@ int iface_enumerate(int family, void *parm, int (*callback)())
 	    {
 	      struct in_addr addr, netmask, broadcast;
 	      addr = ((struct sockaddr_in *) addrs->ifa_addr)->sin_addr;
+#ifdef HAVE_BSD_NETWORK
+	      if (del_family == AF_INET && del_addr.addr.addr4.s_addr == addr.s_addr)
+		continue;
+#endif
 	      netmask = ((struct sockaddr_in *) addrs->ifa_netmask)->sin_addr;
 	      if (addrs->ifa_broadaddr)
 		broadcast = ((struct sockaddr_in *) addrs->ifa_broadaddr)->sin_addr; 
@@ -146,6 +160,10 @@ int iface_enumerate(int family, void *parm, int (*callback)())
 	      u32 valid = 0xffffffff, preferred = 0xffffffff;
 	      int flags = 0;
 #ifdef HAVE_BSD_NETWORK
+	      if (del_family == AF_INET6 && IN6_ARE_ADDR_EQUAL(&del_addr.addr.addr6, addr))
+		continue;
+#endif
+#if defined(HAVE_BSD_NETWORK) && !defined(__APPLE__)
 	      struct in6_ifreq ifr6;
 
 	      memset(&ifr6, 0, sizeof(ifr6));
@@ -225,7 +243,7 @@ int iface_enumerate(int family, void *parm, int (*callback)())
 
   return ret;
 }
-#endif
+#endif /* defined(HAVE_BSD_NETWORK) || defined(HAVE_SOLARIS_NETWORK) */
 
 
 #if defined(HAVE_BSD_NETWORK) && defined(HAVE_DHCP)
@@ -344,6 +362,87 @@ void send_via_bpf(struct dhcp_packet *mess, size_t len,
   while (writev(daemon->dhcp_raw_fd, iov, 4) == -1 && retry_send());
 }
 
+#endif /* defined(HAVE_BSD_NETWORK) && defined(HAVE_DHCP) */
+ 
+
+#ifdef HAVE_BSD_NETWORK
+
+void route_init(void)
+{
+  /* AF_UNSPEC: all addr families */
+  daemon->routefd = socket(PF_ROUTE, SOCK_RAW, AF_UNSPEC);
+  
+  if (daemon->routefd == -1 || !fix_fd(daemon->routefd))
+    die(_("cannot create PF_ROUTE socket: %s"), NULL, EC_BADNET);
+}
+
+void route_sock(time_t now)
+{
+  struct if_msghdr *msg;
+  int rc = recv(daemon->routefd, daemon->packet, daemon->packet_buff_sz, 0);
+
+  if (rc < 4)
+    return;
+
+  msg = (struct if_msghdr *)daemon->packet;
+  
+  if (rc < msg->ifm_msglen)
+    return;
+
+   if (msg->ifm_version != RTM_VERSION)
+     {
+       static int warned = 0;
+       if (!warned)
+	 {
+	   my_syslog(LOG_WARNING, _("Unknown protocol version from route socket"));
+	   warned = 1;
+	 }
+     }
+   else if (msg->ifm_type == RTM_NEWADDR)
+     {
+       del_family = 0;
+       newaddress(now);
+     }
+   else if (msg->ifm_type == RTM_DELADDR)
+     {
+       /* There's a race in the kernel, such that if we run iface_enumerate() immediately
+	  we get a DELADDR event, the deleted address still appears. Here we store the deleted address
+	  in a static variable, and omit it from the set returned by iface_enumerate() */
+       int mask = ((struct ifa_msghdr *)msg)->ifam_addrs;
+       int maskvec[] = { RTA_DST, RTA_GATEWAY, RTA_NETMASK, RTA_GENMASK,
+			 RTA_IFP, RTA_IFA, RTA_AUTHOR, RTA_BRD };
+       int of;
+       unsigned int i;
+       
+       for (i = 0,  of = sizeof(struct ifa_msghdr); of < rc && i < sizeof(maskvec)/sizeof(maskvec[0]); i++) 
+	 if (mask & maskvec[i]) 
+	   {
+	     struct sockaddr *sa = (struct sockaddr *)((char *)msg + of);
+	     size_t diff = (sa->sa_len != 0) ? sa->sa_len : sizeof(long);
+	     
+	     if (maskvec[i] == RTA_IFA)
+	       {
+		 del_family = sa->sa_family;
+		 if (del_family == AF_INET)
+		   del_addr.addr.addr4 = ((struct sockaddr_in *)sa)->sin_addr;
+#ifdef HAVE_IPV6
+		 else if (del_family == AF_INET6)
+		   del_addr.addr.addr6 = ((struct sockaddr_in6 *)sa)->sin6_addr;
 #endif
+		 else
+		   del_family = 0;
+	       }
+	     
+	     of += diff;
+	     /* round up as needed */
+	     if (diff & (sizeof(long) - 1)) 
+	       of += sizeof(long) - (diff & (sizeof(long) - 1));
+	   }
+       
+       newaddress(now);
+     }
+}
+
+#endif /* HAVE_BSD_NETWORK */
 
 

src/cache.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -24,10 +24,6 @@ static struct crec *new_chain = NULL;
 static int cache_inserted = 0, cache_live_freed = 0, insert_error;
 static union bigname *big_free = NULL;
 static int bignames_left, hash_size;
-static int uid = 0;
-#ifdef HAVE_DNSSEC
-static struct keydata *keyblock_free = NULL;
-#endif
 
 /* type->string mapping: this is also used by the name-hash function as a mixing table. */
 static const struct {
@@ -56,7 +52,11 @@ static const struct {
   { 38,  "A6" },
   { 39,  "DNAME" },
   { 41,  "OPT" },
+  { 43,  "DS" },
+  { 46,  "RRSIG" },
+  { 47,  "NSEC" },
   { 48,  "DNSKEY" },
+  { 50,  "NSEC3" },
   { 249, "TKEY" },
   { 250, "TSIG" },
   { 251, "IXFR" },
@@ -72,11 +72,24 @@ static void cache_link(struct crec *crecp);
 static void rehash(int size);
 static void cache_hash(struct crec *crecp);
 
+static unsigned int next_uid(void)
+{
+  static unsigned int uid = 0;
+
+  uid++;
+  
+  /* uid == 0 used to indicate CNAME to interface name. */
+  if (uid == SRC_INTERFACE)
+    uid++;
+  
+  return uid;
+}
+
 void cache_init(void)
 {
   struct crec *crecp;
   int i;
-
+ 
   bignames_left = daemon->cachesize/10;
   
   if (daemon->cachesize > 0)
@@ -87,7 +100,7 @@ void cache_init(void)
 	{
 	  cache_link(crecp);
 	  crecp->flags = 0;
-	  crecp->uid = uid++;
+	  crecp->uid = next_uid();
 	}
     }
   
@@ -171,13 +184,28 @@ static void cache_hash(struct crec *crecp)
   crecp->hash_next = *up;
   *up = crecp;
 }
- 
+
+#ifdef HAVE_DNSSEC
+static void cache_blockdata_free(struct crec *crecp)
+{
+  if (crecp->flags & F_DNSKEY)
+    {
+      if (crecp->flags & F_DS)
+	blockdata_free(crecp->addr.sig.keydata);
+      else
+	blockdata_free(crecp->addr.key.keydata);
+    }
+  else if ((crecp->flags & F_DS) && !(crecp->flags & F_NEG))
+    blockdata_free(crecp->addr.ds.keydata);
+}
+#endif
+
 static void cache_free(struct crec *crecp)
 {
   crecp->flags &= ~F_FORWARD;
   crecp->flags &= ~F_REVERSE;
-  crecp->uid = uid++; /* invalidate CNAMES pointing to this. */
-  
+  crecp->uid = next_uid(); /* invalidate CNAMES pointing to this. */
+
   if (cache_tail)
     cache_tail->next = crecp;
   else
@@ -193,9 +221,9 @@ static void cache_free(struct crec *crecp)
       big_free = crecp->name.bname;
       crecp->flags &= ~F_BIGNAME;
     }
+
 #ifdef HAVE_DNSSEC
-  else if (crecp->flags & (F_DNSKEY | F_DS))
-    keydata_free(crecp->addr.key.keydata);
+  cache_blockdata_free(crecp);
 #endif
 }    
 
@@ -235,6 +263,16 @@ char *cache_get_name(struct crec *crecp)
   return crecp->name.sname;
 }
 
+char *cache_get_cname_target(struct crec *crecp)
+{
+  if (crecp->addr.cname.uid != SRC_INTERFACE)
+    return cache_get_name(crecp->addr.cname.target.cache);
+
+  return crecp->addr.cname.target.int_name->name;
+}
+
+
+
 struct crec *cache_enumerate(int init)
 {
   static int bucket;
@@ -260,14 +298,14 @@ struct crec *cache_enumerate(int init)
 
 static int is_outdated_cname_pointer(struct crec *crecp)
 {
-  if (!(crecp->flags & F_CNAME))
+  if (!(crecp->flags & F_CNAME) || crecp->addr.cname.uid == SRC_INTERFACE)
     return 0;
   
   /* NB. record may be reused as DS or DNSKEY, where uid is 
      overloaded for something completely different */
-  if (crecp->addr.cname.cache && 
-      (crecp->addr.cname.cache->flags & (F_IPV4 | F_IPV6 | F_CNAME)) &&
-      crecp->addr.cname.uid == crecp->addr.cname.cache->uid)
+  if (crecp->addr.cname.target.cache && 
+      (crecp->addr.cname.target.cache->flags & (F_IPV4 | F_IPV6 | F_CNAME)) &&
+      crecp->addr.cname.uid == crecp->addr.cname.target.cache->uid)
     return 0;
   
   return 1;
@@ -304,27 +342,52 @@ static int cache_scan_free(char *name, struct all_addr *addr, time_t now, unsign
   if (flags & F_FORWARD)
     {
       for (up = hash_bucket(name), crecp = *up; crecp; crecp = crecp->hash_next)
-	if (is_expired(now, crecp) || is_outdated_cname_pointer(crecp))
-	  { 
-	    *up = crecp->hash_next;
-	    if (!(crecp->flags & (F_HOSTS | F_DHCP)))
-	      {
-		cache_unlink(crecp);
-		cache_free(crecp);
-	      }
-	  } 
-	else if ((crecp->flags & F_FORWARD) && 
-		 ((flags & crecp->flags & F_TYPE) || ((crecp->flags | flags) & F_CNAME)) &&
-		 hostname_isequal(cache_get_name(crecp), name))
-	  {
-	    if (crecp->flags & (F_HOSTS | F_DHCP))
-	      return 0;
-	    *up = crecp->hash_next;
-	    cache_unlink(crecp);
-	    cache_free(crecp);
-	  }
-	else
+	{
+	  if (is_expired(now, crecp) || is_outdated_cname_pointer(crecp))
+	    { 
+	      *up = crecp->hash_next;
+	      if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)))
+		{
+		  cache_unlink(crecp);
+		  cache_free(crecp);
+		}
+	      continue;
+	    } 
+	
+	  if ((crecp->flags & F_FORWARD) && hostname_isequal(cache_get_name(crecp), name))
+	    {
+	      /* Don't delete DNSSEC in favour of a CNAME, they can co-exist */
+	      if ((flags & crecp->flags & (F_IPV4 | F_IPV6)) || 
+		  (((crecp->flags | flags) & F_CNAME) && !(crecp->flags & (F_DNSKEY | F_DS))))
+		{
+		  if (crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG))
+		    return 0;
+		  *up = crecp->hash_next;
+		  cache_unlink(crecp);
+		  cache_free(crecp);
+		  continue;
+		}
+	      
+#ifdef HAVE_DNSSEC
+	      /* Deletion has to be class-sensitive for DS, DNSKEY, RRSIG, also 
+		 type-covered sensitive for  RRSIG */
+	      if ((flags & (F_DNSKEY | F_DS)) &&
+		  (flags & (F_DNSKEY | F_DS)) == (crecp->flags & (F_DNSKEY | F_DS)) &&
+		  crecp->uid == addr->addr.dnssec.class &&
+		  (!((flags & (F_DS | F_DNSKEY)) == (F_DS | F_DNSKEY)) || 
+		   crecp->addr.sig.type_covered == addr->addr.dnssec.type))
+		{
+		  if (crecp->flags & F_CONFIG)
+		    return 0;
+		  *up = crecp->hash_next;
+		  cache_unlink(crecp);
+		  cache_free(crecp);
+		  continue;
+		}
+#endif
+	    }
 	  up = &crecp->hash_next;
+	}
     }
   else
     {
@@ -341,13 +404,13 @@ static int cache_scan_free(char *name, struct all_addr *addr, time_t now, unsign
 	  if (is_expired(now, crecp))
 	    {
 	      *up = crecp->hash_next;
-	      if (!(crecp->flags & (F_HOSTS | F_DHCP)))
+	      if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)))
 		{ 
 		  cache_unlink(crecp);
 		  cache_free(crecp);
 		}
 	    }
-	  else if (!(crecp->flags & (F_HOSTS | F_DHCP)) &&
+	  else if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) &&
 		   (flags & crecp->flags & F_REVERSE) && 
 		   (flags & crecp->flags & (F_IPV4 | F_IPV6)) &&
 		   memcmp(&crecp->addr.addr, addr, addrlen) == 0)
@@ -394,19 +457,21 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
   int freed_all = flags & F_REVERSE;
   int free_avail = 0;
 
-  if (daemon->max_cache_ttl != 0 && daemon->max_cache_ttl < ttl)
-    ttl = daemon->max_cache_ttl;
-
-  /* Don't log keys */
-  if (flags & (F_IPV4 | F_IPV6))
-    log_query(flags | F_UPSTREAM, name, addr, NULL);
+  /* Don't log DNSSEC records here, done elsewhere */
+  if (flags & (F_IPV4 | F_IPV6 | F_CNAME))
+    {
+      log_query(flags | F_UPSTREAM, name, addr, NULL);
+      /* Don;t mess with TTL for DNSSEC records. */
+      if (daemon->max_cache_ttl != 0 && daemon->max_cache_ttl < ttl)
+	ttl = daemon->max_cache_ttl;
+    }
 
   /* if previous insertion failed give up now. */
   if (insert_error)
     return NULL;
-
+  
   /* First remove any expired entries and entries for the name/address we
-     are currently inserting. Fail is we attempt to delete a name from
+     are currently inserting. Fail if we attempt to delete a name from
      /etc/hosts or DHCP. */
   if (!cache_scan_free(name, addr, now, flags))
     {
@@ -434,14 +499,32 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
 	   insert. Once in this state, all inserts will probably fail. */
 	if (free_avail)
 	  {
+	    static int warned = 0;
+	    if (!warned)
+	      {
+		my_syslog(LOG_ERR, _("Internal error in cache."));
+		warned = 1;
+	      }
 	    insert_error = 1;
 	    return NULL;
 	  }
 		
 	if (freed_all)
 	  {
+	    struct all_addr free_addr = new->addr.addr;;
+
+#ifdef HAVE_DNSSEC
+	    /* For DNSSEC records, addr holds class and type_covered for RRSIG */
+	    if (new->flags & (F_DS | F_DNSKEY))
+	      {
+		free_addr.addr.dnssec.class = new->uid;
+		if ((new->flags & (F_DS | F_DNSKEY)) == (F_DS | F_DNSKEY))
+		  free_addr.addr.dnssec.type = new->addr.sig.type_covered;
+	      }
+#endif
+	    
 	    free_avail = 1; /* Must be free space now. */
-	    cache_scan_free(cache_get_name(new), &new->addr.addr, now, new->flags);
+	    cache_scan_free(cache_get_name(new), &free_addr, now, new->flags);
 	    cache_live_freed++;
 	  }
 	else
@@ -453,7 +536,7 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
       }
  
     /* Check if we need to and can allocate extra memory for a long name.
-       If that fails, give up now. */
+       If that fails, give up now, always succeed for DNSSEC records. */
     if (name && (strlen(name) > SMALLDNAME-1))
       {
 	if (big_free)
@@ -461,13 +544,13 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
 	    big_name = big_free;
 	    big_free = big_free->next;
 	  }
-	else if (!bignames_left ||
+	else if ((bignames_left == 0 && !(flags & (F_DS | F_DNSKEY))) ||
 		 !(big_name = (union bigname *)whine_malloc(sizeof(union bigname))))
 	  {
 	    insert_error = 1;
 	    return NULL;
 	  }
-	else
+	else if (bignames_left != 0)
 	  bignames_left--;
 	
       }
@@ -490,7 +573,14 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
     *cache_get_name(new) = 0;
 
   if (addr)
-    new->addr.addr = *addr;
+    {
+#ifdef HAVE_DNSSEC
+      if (flags & (F_DS | F_DNSKEY))
+	new->uid = addr->addr.dnssec.class;
+      else
+#endif
+	new->addr.addr = *addr;	
+    }
 
   new->ttd = now + (time_t)ttl;
   new->next = new_chain;
@@ -522,10 +612,13 @@ void cache_end_insert(void)
   new_chain = NULL;
 }
 
-struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsigned short prot)
+struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsigned int prot)
 {
   struct crec *ans;
+  int no_rr = prot & F_NO_RR;
 
+  prot &= ~F_NO_RR;
+  
   if (crecp) /* iterating */
     ans = crecp->next;
   else
@@ -542,10 +635,13 @@ struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsi
 	  if (!is_expired(now, crecp) && !is_outdated_cname_pointer(crecp))
 	    {
 	      if ((crecp->flags & F_FORWARD) && 
+#ifdef HAVE_DNSSEC
+		  ((crecp->flags & (F_DNSKEY | F_DS)) == (prot & (F_DNSKEY | F_DS))) &&
+#endif
 		  (crecp->flags & prot) &&
 		  hostname_isequal(cache_get_name(crecp), name))
 		{
-		  if (crecp->flags & (F_HOSTS | F_DHCP))
+		  if (crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG))
 		    {
 		      *chainp = crecp;
 		      chainp = &crecp->next;
@@ -570,7 +666,7 @@ struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsi
 		    }
 		  else
 		    {
-		      if (!insert)
+		      if (!insert && !no_rr)
 			{
 			  insert = up;
 			  ins_flags = crecp->flags & (F_REVERSE | F_IMMORTAL);
@@ -586,7 +682,7 @@ struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsi
 	    {
 	      /* expired entry, free it */
 	      *up = crecp->hash_next;
-	      if (!(crecp->flags & (F_HOSTS | F_DHCP)))
+	      if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)))
 		{ 
 		  cache_unlink(crecp);
 		  cache_free(crecp);
@@ -599,7 +695,10 @@ struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsi
 
   if (ans && 
       (ans->flags & F_FORWARD) &&
-      (ans->flags & prot) &&
+#ifdef HAVE_DNSSEC
+      ((ans->flags & (F_DNSKEY | F_DS)) == (prot & (F_DNSKEY | F_DS))) &&
+#endif
+      (ans->flags & prot) &&     
       hostname_isequal(cache_get_name(ans), name))
     return ans;
   
@@ -607,7 +706,7 @@ struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsi
 }
 
 struct crec *cache_find_by_addr(struct crec *crecp, struct all_addr *addr, 
-				time_t now, unsigned short prot)
+				time_t now, unsigned int prot)
 {
   struct crec *ans;
 #ifdef HAVE_IPV6
@@ -636,7 +735,7 @@ struct crec *cache_find_by_addr(struct crec *crecp, struct all_addr *addr,
 	       if ((crecp->flags & prot) &&
 		   memcmp(&crecp->addr.addr, addr, addrlen) == 0)
 		 {	    
-		   if (crecp->flags & (F_HOSTS | F_DHCP))
+		   if (crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG))
 		     {
 		       *chainp = crecp;
 		       chainp = &crecp->next;
@@ -652,7 +751,7 @@ struct crec *cache_find_by_addr(struct crec *crecp, struct all_addr *addr,
 	   else
 	     {
 	       *up = crecp->hash_next;
-	       if (!(crecp->flags & (F_HOSTS | F_DHCP)))
+	       if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)))
 		 {
 		   cache_unlink(crecp);
 		   cache_free(crecp);
@@ -680,17 +779,18 @@ static void add_hosts_cname(struct crec *target)
     if (hostname_isequal(cache_get_name(target), a->target) &&
 	(crec = whine_malloc(sizeof(struct crec))))
       {
-	crec->flags = F_FORWARD | F_IMMORTAL | F_NAMEP | F_HOSTS | F_CNAME;
+	crec->flags = F_FORWARD | F_IMMORTAL | F_NAMEP | F_CONFIG | F_CNAME;
 	crec->name.namep = a->alias;
-	crec->addr.cname.cache = target;
+	crec->addr.cname.target.cache = target;
 	crec->addr.cname.uid = target->uid;
+	crec->uid = next_uid();
 	cache_hash(crec);
 	add_hosts_cname(crec); /* handle chains */
       }
 }
   
 static void add_hosts_entry(struct crec *cache, struct all_addr *addr, int addrlen, 
-			    int index, struct crec **rhash, int hashsz)
+			    unsigned int index, struct crec **rhash, int hashsz)
 {
   struct crec *lookup = cache_find_by_name(NULL, cache_get_name(cache), 0, cache->flags & (F_IPV4 | F_IPV6));
   int i, nameexists = 0;
@@ -794,7 +894,7 @@ static int gettok(FILE *f, char *token)
     }
 }
 
-static int read_hostsfile(char *filename, int index, int cache_size, struct crec **rhash, int hashsz)
+static int read_hostsfile(char *filename, unsigned int index, int cache_size, struct crec **rhash, int hashsz)
 {  
   FILE *f = fopen(filename, "r");
   char *token = daemon->namebuff, *domain_suffix = NULL;
@@ -901,14 +1001,22 @@ void cache_reload(void)
   struct hostsfile *ah;
   struct host_record *hr;
   struct name_list *nl;
+  struct cname *a;
+  struct interface_name *intr;
+#ifdef HAVE_DNSSEC
+  struct ds_config *ds;
+#endif
 
   cache_inserted = cache_live_freed = 0;
   
   for (i=0; i<hash_size; i++)
     for (cache = hash_table[i], up = &hash_table[i]; cache; cache = tmp)
       {
+#ifdef HAVE_DNSSEC
+	cache_blockdata_free(cache);
+#endif
 	tmp = cache->hash_next;
-	if (cache->flags & F_HOSTS)
+	if (cache->flags & (F_HOSTS | F_CONFIG))
 	  {
 	    *up = cache->hash_next;
 	    free(cache);
@@ -927,6 +1035,37 @@ void cache_reload(void)
 	  up = &cache->hash_next;
       }
   
+  /* Add CNAMEs to interface_names to the cache */
+  for (a = daemon->cnames; a; a = a->next)
+    for (intr = daemon->int_names; intr; intr = intr->next)
+      if (hostname_isequal(a->target, intr->name) &&
+	  ((cache = whine_malloc(sizeof(struct crec)))))
+	{
+	  cache->flags = F_FORWARD | F_NAMEP | F_CNAME | F_IMMORTAL | F_CONFIG;
+	  cache->name.namep = a->alias;
+	  cache->addr.cname.target.int_name = intr;
+	  cache->addr.cname.uid = SRC_INTERFACE;
+	  cache->uid = next_uid();
+	  cache_hash(cache);
+	  add_hosts_cname(cache); /* handle chains */
+	}
+
+#ifdef HAVE_DNSSEC
+  for (ds = daemon->ds; ds; ds = ds->next)
+    if ((cache = whine_malloc(sizeof(struct crec))) &&
+	(cache->addr.ds.keydata = blockdata_alloc(ds->digest, ds->digestlen)))
+      {
+	cache->flags = F_FORWARD | F_IMMORTAL | F_DS | F_CONFIG | F_NAMEP;
+	cache->name.namep = ds->name;
+	cache->addr.ds.keylen = ds->digestlen;
+	cache->addr.ds.algo = ds->algo;
+	cache->addr.ds.keytag = ds->keytag;
+	cache->addr.ds.digest = ds->digest_type;
+	cache->uid = ds->class;
+	cache_hash(cache);
+      }
+#endif
+  
   /* borrow the packet buffer for a temporary by-address hash */
   memset(daemon->packet, 0, daemon->packet_buff_sz);
   revhashsz = daemon->packet_buff_sz / sizeof(struct crec *);
@@ -942,7 +1081,7 @@ void cache_reload(void)
 	  {
 	    cache->name.namep = nl->name;
 	    cache->flags = F_HOSTS | F_IMMORTAL | F_FORWARD | F_REVERSE | F_IPV4 | F_NAMEP | F_CONFIG;
-	    add_hosts_entry(cache, (struct all_addr *)&hr->addr, INADDRSZ, 0, (struct crec **)daemon->packet, revhashsz);
+	    add_hosts_entry(cache, (struct all_addr *)&hr->addr, INADDRSZ, SRC_CONFIG, (struct crec **)daemon->packet, revhashsz);
 	  }
 #ifdef HAVE_IPV6
 	if (!IN6_IS_ADDR_UNSPECIFIED(&hr->addr6) &&
@@ -950,7 +1089,7 @@ void cache_reload(void)
 	  {
 	    cache->name.namep = nl->name;
 	    cache->flags = F_HOSTS | F_IMMORTAL | F_FORWARD | F_REVERSE | F_IPV6 | F_NAMEP | F_CONFIG;
-	    add_hosts_entry(cache, (struct all_addr *)&hr->addr6, IN6ADDRSZ, 0, (struct crec **)daemon->packet, revhashsz);
+	    add_hosts_entry(cache, (struct all_addr *)&hr->addr6, IN6ADDRSZ, SRC_CONFIG, (struct crec **)daemon->packet, revhashsz);
 	  }
 #endif
       }
@@ -963,7 +1102,7 @@ void cache_reload(void)
     }
     
   if (!option_bool(OPT_NO_HOSTS))
-    total_size = read_hostsfile(HOSTSFILE, 0, total_size, (struct crec **)daemon->packet, revhashsz);
+    total_size = read_hostsfile(HOSTSFILE, SRC_HOSTS, total_size, (struct crec **)daemon->packet, revhashsz);
   	   
   daemon->addn_hosts = expand_filelist(daemon->addn_hosts);
   for (ah = daemon->addn_hosts; ah; ah = ah->next)
@@ -1019,14 +1158,15 @@ static void add_dhcp_cname(struct crec *target, time_t ttd)
 	
 	if (aliasc)
 	  {
-	    aliasc->flags = F_FORWARD | F_NAMEP | F_DHCP | F_CNAME;
+	    aliasc->flags = F_FORWARD | F_NAMEP | F_DHCP | F_CNAME | F_CONFIG;
 	    if (ttd == 0)
 	      aliasc->flags |= F_IMMORTAL;
 	    else
 	      aliasc->ttd = ttd;
 	    aliasc->name.namep = a->alias;
-	    aliasc->addr.cname.cache = target;
+	    aliasc->addr.cname.target.cache = target;
 	    aliasc->addr.cname.uid = target->uid;
+	    aliasc->uid = next_uid();
 	    cache_hash(aliasc);
 	    add_dhcp_cname(aliasc, ttd);
 	  }
@@ -1054,7 +1194,7 @@ void cache_add_dhcp_entry(char *host_name, int prot,
   while ((crec = cache_find_by_name(crec, host_name, 0, flags | F_CNAME)))
     {
       /* check all addresses associated with name */
-      if (crec->flags & F_HOSTS)
+      if (crec->flags & (F_HOSTS | F_CONFIG))
 	{
 	  if (crec->flags & F_CNAME)
 	    my_syslog(MS_DHCP | LOG_WARNING, 
@@ -1114,7 +1254,7 @@ void cache_add_dhcp_entry(char *host_name, int prot,
 	crec->ttd = ttd;
       crec->addr.addr = *host_address;
       crec->name.namep = host_name;
-      crec->uid = uid++;
+      crec->uid = next_uid();
       cache_hash(crec);
 
       add_dhcp_cname(crec, ttd);
@@ -1122,16 +1262,118 @@ void cache_add_dhcp_entry(char *host_name, int prot,
 }
 #endif
 
+int cache_make_stat(struct txt_record *t)
+{ 
+  static char *buff = NULL;
+  static int bufflen = 60;
+  int len;
+  struct server *serv, *serv1;
+  char *p;
+
+  if (!buff && !(buff = whine_malloc(60)))
+    return 0;
+
+  p = buff;
+  
+  switch (t->stat)
+    {
+    case TXT_STAT_CACHESIZE:
+      sprintf(buff+1, "%d", daemon->cachesize);
+      break;
+
+    case TXT_STAT_INSERTS:
+      sprintf(buff+1, "%d", cache_inserted);
+      break;
+
+    case TXT_STAT_EVICTIONS:
+      sprintf(buff+1, "%d", cache_live_freed);
+      break;
+
+    case TXT_STAT_MISSES:
+      sprintf(buff+1, "%u", daemon->queries_forwarded);
+      break;
+
+    case TXT_STAT_HITS:
+      sprintf(buff+1, "%u", daemon->local_answer);
+      break;
+
+#ifdef HAVE_AUTH
+    case TXT_STAT_AUTH:
+      sprintf(buff+1, "%u", daemon->auth_answer);
+      break;
+#endif
+
+    case TXT_STAT_SERVERS:
+      /* sum counts from different records for same server */
+      for (serv = daemon->servers; serv; serv = serv->next)
+	serv->flags &= ~SERV_COUNTED;
+      
+      for (serv = daemon->servers; serv; serv = serv->next)
+	if (!(serv->flags & 
+	      (SERV_NO_ADDR | SERV_LITERAL_ADDRESS | SERV_COUNTED | SERV_USE_RESOLV | SERV_NO_REBIND)))
+	  {
+	    char *new, *lenp;
+	    int port, newlen, bytes_avail, bytes_needed;
+	    unsigned int queries = 0, failed_queries = 0;
+	    for (serv1 = serv; serv1; serv1 = serv1->next)
+	      if (!(serv1->flags & 
+		    (SERV_NO_ADDR | SERV_LITERAL_ADDRESS | SERV_COUNTED | SERV_USE_RESOLV | SERV_NO_REBIND)) && 
+		  sockaddr_isequal(&serv->addr, &serv1->addr))
+		{
+		  serv1->flags |= SERV_COUNTED;
+		  queries += serv1->queries;
+		  failed_queries += serv1->failed_queries;
+		}
+	    port = prettyprint_addr(&serv->addr, daemon->addrbuff);
+	    lenp = p++; /* length */
+	    bytes_avail = (p - buff) + bufflen;
+	    bytes_needed = snprintf(p, bytes_avail, "%s#%d %u %u", daemon->addrbuff, port, queries, failed_queries);
+	    if (bytes_needed >= bytes_avail)
+	      {
+		/* expand buffer if necessary */
+		newlen = bytes_needed + 1 + bufflen - bytes_avail;
+		if (!(new = whine_malloc(newlen)))
+		  return 0;
+		memcpy(new, buff, bufflen);
+		free(buff);
+		p = new + (p - buff);
+		lenp = p - 1;
+		buff = new;
+		bufflen = newlen;
+		bytes_avail = (p - buff) + bufflen;
+		bytes_needed = snprintf(p, bytes_avail, "%s#%d %u %u", daemon->addrbuff, port, queries, failed_queries);
+	      }
+	    *lenp = bytes_needed;
+	    p += bytes_needed;
+	  }
+      t->txt = (unsigned char *)buff;
+      t->len = p - buff;
+      return 1;
+    }
+  
+  len = strlen(buff+1);
+  t->txt = (unsigned char *)buff;
+  t->len = len + 1;
+  *buff = len;
+  return 1;
+}
 
 void dump_cache(time_t now)
 {
   struct server *serv, *serv1;
+  char *t = "";
 
   my_syslog(LOG_INFO, _("time %lu"), (unsigned long)now);
   my_syslog(LOG_INFO, _("cache size %d, %d/%d cache insertions re-used unexpired cache entries."), 
 	    daemon->cachesize, cache_live_freed, cache_inserted);
   my_syslog(LOG_INFO, _("queries forwarded %u, queries answered locally %u"), 
 	    daemon->queries_forwarded, daemon->local_answer);
+#ifdef HAVE_AUTH
+  my_syslog(LOG_INFO, _("queries for authoritative zones %u"), daemon->auth_answer);
+#endif
+#ifdef HAVE_DNSSEC
+  blockdata_report();
+#endif
 
   /* sum counts from different records for same server */
   for (serv = daemon->servers; serv; serv = serv->next)
@@ -1160,35 +1402,34 @@ void dump_cache(time_t now)
     {
       struct crec *cache ;
       int i;
-      my_syslog(LOG_INFO, "Host                                     Address                        Flags     Expires");
+      my_syslog(LOG_INFO, "Host                                     Address                        Flags      Expires");
     
       for (i=0; i<hash_size; i++)
 	for (cache = hash_table[i]; cache; cache = cache->hash_next)
 	  {
-	    char *a, *p = daemon->namebuff;
-	    p += sprintf(p, "%-40.40s ", cache_get_name(cache));
-	    if ((cache->flags & F_NEG) && (cache->flags & F_FORWARD))
-	      a = ""; 
-	    else if (cache->flags & F_CNAME) 
-	      {
-		a = "";
-		if (!is_outdated_cname_pointer(cache))
-		  a = cache_get_name(cache->addr.cname.cache);
-	      }
+	    char *a = daemon->addrbuff, *p = daemon->namebuff, *n = cache_get_name(cache);
+	    *a = 0;
+	    if (strlen(n) == 0 && !(cache->flags & F_REVERSE))
+	      n = "<Root>";
+	    p += sprintf(p, "%-40.40s ", n);
+	    if ((cache->flags & F_CNAME) && !is_outdated_cname_pointer(cache))
+	      a = cache_get_cname_target(cache);
 #ifdef HAVE_DNSSEC
-	    else if (cache->flags & F_DNSKEY)
-	      {
-		a = daemon->addrbuff;
-		sprintf(a, "%3u %u", cache->addr.key.algo, cache->uid);
-	      }
 	    else if (cache->flags & F_DS)
 	      {
-		a = daemon->addrbuff;
-		sprintf(a, "%5u %3u %3u %u", cache->addr.key.flags_or_keyid,
-			cache->addr.key.algo, cache->addr.key.digest, cache->uid);
+		if (cache->flags & F_DNSKEY)
+		  /* RRSIG */
+		  sprintf(a, "%5u %3u %s", cache->addr.sig.keytag,
+			  cache->addr.sig.algo, querystr("", cache->addr.sig.type_covered));
+		else if (!(cache->flags & F_NEG))
+		  sprintf(a, "%5u %3u %3u", cache->addr.ds.keytag,
+			  cache->addr.ds.algo, cache->addr.ds.digest);
 	      }
+	    else if (cache->flags & F_DNSKEY)
+	      sprintf(a, "%5u %3u %3u", cache->addr.key.keytag,
+		      cache->addr.key.algo, cache->addr.key.flags);
 #endif
-	    else 
+	    else if (!(cache->flags & F_NEG) || !(cache->flags & F_FORWARD))
 	      { 
 		a = daemon->addrbuff;
 		if (cache->flags & F_IPV4)
@@ -1199,12 +1440,21 @@ void dump_cache(time_t now)
 #endif
 	      }
 
-	    p += sprintf(p, "%-30.30s %s%s%s%s%s%s%s%s%s%s%s%s%s  ", a, 
-			 cache->flags & F_IPV4 ? "4" : "",
-			 cache->flags & F_IPV6 ? "6" : "",
-			 cache->flags & F_DNSKEY ? "K" : "",
-			 cache->flags & F_DS ? "S" : "",
-			 cache->flags & F_CNAME ? "C" : "",
+	    if (cache->flags & F_IPV4)
+	      t = "4";
+	    else if (cache->flags & F_IPV6)
+	      t = "6";
+	    else if (cache->flags & F_CNAME)
+	      t = "C";
+#ifdef HAVE_DNSSEC
+	    else if ((cache->flags & (F_DS | F_DNSKEY)) == (F_DS | F_DNSKEY))
+	      t = "G"; /* DNSKEY and DS set -> RRISG */
+	    else if (cache->flags & F_DS)
+	      t = "S";
+	    else if (cache->flags & F_DNSKEY)
+	      t = "K";
+#endif
+	    p += sprintf(p, "%-30.30s %s%s%s%s%s%s%s%s%s  ", a, t,
 			 cache->flags & F_FORWARD ? "F" : " ",
 			 cache->flags & F_REVERSE ? "R" : " ",
 			 cache->flags & F_IMMORTAL ? "I" : " ",
@@ -1225,11 +1475,13 @@ void dump_cache(time_t now)
     }
 }
 
-char *record_source(int index)
+char *record_source(unsigned int index)
 {
   struct hostsfile *ah;
 
-  if (index == 0)
+  if (index == SRC_CONFIG)
+    return "config";
+  else if (index == SRC_HOSTS)
     return HOSTSFILE;
 
   for (ah = daemon->addn_hosts; ah; ah = ah->next)
@@ -1239,14 +1491,45 @@ char *record_source(int index)
   return "<unknown>";
 }
 
-void querystr(char *desc, char *str, unsigned short type)
+char *querystr(char *desc, unsigned short type)
 {
   unsigned int i;
-  
-  sprintf(str, "%s[type=%d]", desc, type); 
+  int len = 10; /* strlen("type=xxxxx") */
+  const char *types = NULL;
+  static char *buff = NULL;
+  static int bufflen = 0;
+
   for (i = 0; i < (sizeof(typestr)/sizeof(typestr[0])); i++)
     if (typestr[i].type == type)
-      sprintf(str,"%s[%s]", desc, typestr[i].name);
+      {
+	types = typestr[i].name;
+	len = strlen(types);
+	break;
+      }
+
+  len += 3; /* braces, terminator */
+  len += strlen(desc);
+
+  if (!buff || bufflen < len)
+    {
+      if (buff)
+	free(buff);
+      else if (len < 20)
+	len = 20;
+      
+      buff = whine_malloc(len);
+      bufflen = len;
+    }
+
+  if (buff)
+    {
+      if (types)
+	sprintf(buff, "%s[%s]", desc, types);
+      else
+	sprintf(buff, "%s[type=%d]", desc, type);
+    }
+
+  return buff ? buff : "";
 }
 
 void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
@@ -1259,13 +1542,20 @@ void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
 
   if (addr)
     {
+      if (flags & F_KEYTAG)
+	sprintf(daemon->addrbuff, arg, addr->addr.keytag);
+      else
+	{
 #ifdef HAVE_IPV6
-      inet_ntop(flags & F_IPV4 ? AF_INET : AF_INET6,
-		addr, daemon->addrbuff, ADDRSTRLEN);
+	  inet_ntop(flags & F_IPV4 ? AF_INET : AF_INET6,
+		    addr, daemon->addrbuff, ADDRSTRLEN);
 #else
-      strncpy(daemon->addrbuff, inet_ntoa(addr->addr.addr4), ADDRSTRLEN);  
+	  strncpy(daemon->addrbuff, inet_ntoa(addr->addr.addr4), ADDRSTRLEN);  
 #endif
+	}
     }
+  else
+    dest = arg;
 
   if (flags & F_REVERSE)
     {
@@ -1276,14 +1566,7 @@ void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
   if (flags & F_NEG)
     {
       if (flags & F_NXDOMAIN)
-	{
-	  if (flags & F_IPV4)
-	    dest = "NXDOMAIN-IPv4";
-	  else if (flags & F_IPV6)
-	    dest = "NXDOMAIN-IPv6";
-	  else
-	    dest = "NXDOMAIN";
-	}
+	dest = "NXDOMAIN";
       else
 	{      
 	  if (flags & F_IPV4)
@@ -1307,6 +1590,8 @@ void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
     source = arg;
   else if (flags & F_UPSTREAM)
     source = "reply";
+  else if (flags & F_SECSTAT)
+    source = "validation";
   else if (flags & F_AUTH)
     source = "auth";
   else if (flags & F_SERVER)
@@ -1319,6 +1604,18 @@ void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
       source = arg;
       verb = "from";
     }
+  else if (flags & F_DNSSEC)
+    {
+      source = arg;
+      verb = "to";
+    }
+  else if (flags & F_IPSET)
+    {
+      source = "ipset add";
+      dest = name;
+      name = arg;
+      verb = daemon->addrbuff;
+    }
   else
     source = "cached";
   
@@ -1328,50 +1625,4 @@ void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg)
   my_syslog(LOG_INFO, "%s %s %s %s", source, name, verb, dest);
 }
 
-#ifdef HAVE_DNSSEC
-struct keydata *keydata_alloc(char *data, size_t len)
-{
-  struct keydata *block, *ret = NULL;
-  struct keydata **prev = &ret;
-  while (len > 0)
-    {
-      if (keyblock_free)
-	{
-	  block = keyblock_free;
-	  keyblock_free = block->next;
-	}
-      else
-	block = whine_malloc(sizeof(struct keydata));
-
-      if (!block)
-	{
-	  /* failed to alloc, free partial chain */
-	  keydata_free(ret);
-	  return NULL;
-	}
-      
-      memcpy(block->key, data, len > KEYBLOCK_LEN ? KEYBLOCK_LEN : len);
-      data += KEYBLOCK_LEN;
-      len -= KEYBLOCK_LEN;
-      *prev = block;
-      prev = &block->next;
-      block->next = NULL;
-    }
-  
-  return ret;
-}
-
-void keydata_free(struct keydata *blocks)
-{
-  struct keydata *tmp;
-
-  if (blocks)
-    {
-      for (tmp = blocks; tmp->next; tmp = tmp->next);
-      tmp->next = keyblock_free;
-      keyblock_free = blocks;
-    }
-}
-#endif
-
-      
+ 

src/config.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -18,7 +18,8 @@
 #define MAX_PROCS 20 /* max no children for TCP requests */
 #define CHILD_LIFETIME 150 /* secs 'till terminated (RFC1035 suggests > 120s) */
 #define EDNS_PKTSZ 4096 /* default max EDNS.0 UDP packet from RFC5625 */
-#define KEYBLOCK_LEN 140 /* choose to mininise fragmentation when storing DNSSEC keys */
+#define KEYBLOCK_LEN 40 /* choose to mininise fragmentation when storing DNSSEC keys */
+#define DNSSEC_WORK 50 /* Max number of queries to validate one question */
 #define TIMEOUT 10 /* drop UDP queries after TIMEOUT seconds */
 #define FORWARD_TEST 50 /* try all servers every 50 queries */
 #define FORWARD_TIME 20 /* or 20 seconds */
@@ -30,7 +31,8 @@
 #define PING_CACHE_TIME 30 /* Ping test assumed to be valid this long. */
 #define DECLINE_BACKOFF 600 /* disable DECLINEd static addresses for this long */
 #define DHCP_PACKET_MAX 16384 /* hard limit on DHCP packet size */
-#define SMALLDNAME 40 /* most domain names are smaller than this */
+#define SMALLDNAME 50 /* most domain names are smaller than this */
+#define CNAME_CHAIN 10 /* chains longer than this atr dropped for loop protection */
 #define HOSTSFILE "/etc/hosts"
 #define ETHERSFILE "/etc/ethers"
 #define DEFLEASE 3600 /* default lease time, 1 hour */
@@ -39,14 +41,12 @@
 #define TFTP_MAX_CONNECTIONS 50 /* max simultaneous connections */
 #define LOG_MAX 5 /* log-queue length */
 #define RANDFILE "/dev/urandom"
-#define EDNS0_OPTION_MAC 5 /* dyndns.org temporary assignment */
 #define DNSMASQ_SERVICE "uk.org.thekelleys.dnsmasq" /* Default - may be overridden by config */
 #define DNSMASQ_PATH "/uk/org/thekelleys/dnsmasq"
 #define AUTH_TTL 600 /* default TTL for auth DNS */
 #define SOA_REFRESH 1200 /* SOA refresh default */
 #define SOA_RETRY 180 /* SOA retry default */
 #define SOA_EXPIRY 1209600 /* SOA expiry default */
-#define RA_INTERVAL 600 /* Send unsolicited RA's this often when not provoked. */
  
 /* compile-time options: uncomment below to enable or do eg.
    make COPTS=-DHAVE_BROKEN_RTC
@@ -126,6 +126,11 @@ RESOLVFILE
 
 */
 
+/* Defining this builds a binary which handles time differently and works better on a system without a 
+   stable RTC (it uses uptime, not epoch time) and writes the DHCP leases file less often to avoid flash wear. 
+*/
+
+/* #define HAVE_BROKEN_RTC */
 
 /* The default set of options to build. Built with these options, dnsmasq
    has no library dependencies other than libc */
@@ -136,11 +141,19 @@ RESOLVFILE
 #define HAVE_SCRIPT
 #define HAVE_AUTH
 #define HAVE_IPSET 
+
+/* Build options which require external libraries.
+   
+   Defining HAVE_<opt>_STATIC as _well_ as HAVE_<opt> will link the library statically.
+
+   You can use "make COPTS=-DHAVE_<opt>" instead of editing these.
+*/
+
 /* #define HAVE_LUASCRIPT */
-/* #define HAVE_BROKEN_RTC */
 /* #define HAVE_DBUS */
 /* #define HAVE_IDN */
 /* #define HAVE_CONNTRACK */
+/* #define HAVE_DNSSEC */
 
 
 /* Default locations for important system files. */
@@ -191,10 +204,6 @@ HAVE_SOLARIS_NETWORK
 HAVE_GETOPT_LONG
    defined when GNU-style getopt_long available. 
 
-HAVE_ARC4RANDOM
-   defined if arc4random() available to get better security from DNS spoofs
-   by using really random ids (OpenBSD) 
-
 HAVE_SOCKADDR_SA_LEN
    defined if struct sockaddr has sa_len field (*BSD) 
 */
@@ -203,7 +212,6 @@ HAVE_SOCKADDR_SA_LEN
 #if defined(__uClinux__)
 #define HAVE_LINUX_NETWORK
 #define HAVE_GETOPT_LONG
-#undef HAVE_ARC4RANDOM
 #undef HAVE_SOCKADDR_SA_LEN
 /* Never use fork() on uClinux. Note that this is subtly different from the
    --keep-in-foreground option, since it also  suppresses forking new 
@@ -217,7 +225,6 @@ HAVE_SOCKADDR_SA_LEN
    ((__UCLIBC_MAJOR__==0) && (__UCLIBC_MINOR__==9) && (__UCLIBC_SUBLEVEL__<21))
 #    define HAVE_GETOPT_LONG
 #endif
-#undef HAVE_ARC4RANDOM
 #undef HAVE_SOCKADDR_SA_LEN
 #if !defined(__ARCH_HAS_MMU__) && !defined(__UCLIBC_HAS_MMU__)
 #  define NO_FORK
@@ -232,7 +239,6 @@ HAVE_SOCKADDR_SA_LEN
 #elif defined(__linux__)
 #define HAVE_LINUX_NETWORK
 #define HAVE_GETOPT_LONG
-#undef HAVE_ARC4RANDOM
 #undef HAVE_SOCKADDR_SA_LEN
 
 #elif defined(__FreeBSD__) || \
@@ -244,29 +250,26 @@ HAVE_SOCKADDR_SA_LEN
 #if defined(optional_argument) && defined(required_argument)
 #   define HAVE_GETOPT_LONG
 #endif
-#if !defined(__FreeBSD_kernel__)
-#   define HAVE_ARC4RANDOM
-#endif
 #define HAVE_SOCKADDR_SA_LEN
 
 #elif defined(__APPLE__)
 #define HAVE_BSD_NETWORK
 #define HAVE_GETOPT_LONG
-#define HAVE_ARC4RANDOM
 #define HAVE_SOCKADDR_SA_LEN
 /* Define before sys/socket.h is included so we get socklen_t */
 #define _BSD_SOCKLEN_T_
- 
+/* Select the RFC_3542 version of the IPv6 socket API. 
+   Define before netinet6/in6.h is included. */
+#define __APPLE_USE_RFC_3542 
+
 #elif defined(__NetBSD__)
 #define HAVE_BSD_NETWORK
 #define HAVE_GETOPT_LONG
-#undef HAVE_ARC4RANDOM
 #define HAVE_SOCKADDR_SA_LEN
 
 #elif defined(__sun) || defined(__sun__)
 #define HAVE_SOLARIS_NETWORK
 #define HAVE_GETOPT_LONG
-#undef HAVE_ARC4RANDOM
 #undef HAVE_SOCKADDR_SA_LEN
 #define ETHER_ADDR_LEN 6 
  
@@ -396,7 +399,12 @@ static char *compile_opts =
 #ifndef HAVE_AUTH
 "no-"
 #endif
-  "auth";
+"auth "
+#ifndef HAVE_DNSSEC
+"no-"
+#endif
+"DNSSEC";
+
 
 #endif
 

src/conntrack.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -108,108 +108,6 @@ static void remove_watch(DBusWatch *watch, void *data)
   w = data; /* no warning */
 }
 
-static void add_update_server(union mysockaddr *addr,
-                              union mysockaddr *source_addr,
-			      const char *interface,
-                              const char *domain)
-{
-  struct server *serv;
-
-  /* See if there is a suitable candidate, and unmark */
-  for (serv = daemon->servers; serv; serv = serv->next)
-    if ((serv->flags & SERV_FROM_DBUS) &&
-       (serv->flags & SERV_MARK))
-      {
-	if (domain)
-	  {
-	    if (!(serv->flags & SERV_HAS_DOMAIN) || !hostname_isequal(domain, serv->domain))
-	      continue;
-	  }
-	else
-	  {
-	    if (serv->flags & SERV_HAS_DOMAIN)
-	      continue;
-	  }
-	
-	serv->flags &= ~SERV_MARK;
-
-        break;
-      }
-  
-  if (!serv && (serv = whine_malloc(sizeof (struct server))))
-    {
-      /* Not found, create a new one. */
-      memset(serv, 0, sizeof(struct server));
-      
-      if (domain && !(serv->domain = whine_malloc(strlen(domain)+1)))
-	{
-	  free(serv);
-          serv = NULL;
-        }
-      else
-        {
-	  serv->next = daemon->servers;
-	  daemon->servers = serv;
-	  serv->flags = SERV_FROM_DBUS;
-	  if (domain)
-	    {
-	      strcpy(serv->domain, domain);
-	      serv->flags |= SERV_HAS_DOMAIN;
-	    }
-	}
-    }
-  
-  if (serv)
-    {
-      if (interface)
-	strcpy(serv->interface, interface);
-      else
-	serv->interface[0] = 0;
-            
-      if (source_addr->in.sin_family == AF_INET &&
-          addr->in.sin_addr.s_addr == 0 &&
-          serv->domain)
-        serv->flags |= SERV_NO_ADDR;
-      else
-        {
-          serv->flags &= ~SERV_NO_ADDR;
-          serv->addr = *addr;
-          serv->source_addr = *source_addr;
-        }
-    }
-}
-
-static void mark_dbus(void)
-{
-  struct server *serv;
-
-  /* mark everything from DBUS */
-  for (serv = daemon->servers; serv; serv = serv->next)
-    if (serv->flags & SERV_FROM_DBUS)
-      serv->flags |= SERV_MARK;
-}
-
-static void cleanup_dbus()
-{
-  struct server *serv, *tmp, **up;
-
-  /* unlink and free anything still marked. */
-  for (serv = daemon->servers, up = &daemon->servers; serv; serv = tmp) 
-    {
-      tmp = serv->next;
-      if (serv->flags & SERV_MARK)
-       {
-         server_gone(serv);
-         *up = serv->next;
-         if (serv->domain)
-	   free(serv->domain);
-	 free(serv);
-       }
-      else 
-       up = &serv->next;
-    }
-}
-
 static void dbus_read_servers(DBusMessage *message)
 {
   DBusMessageIter iter;
@@ -218,8 +116,8 @@ static void dbus_read_servers(DBusMessage *message)
   
   dbus_message_iter_init(message, &iter);
 
-  mark_dbus();
-
+  mark_servers(SERV_FROM_DBUS);
+  
   while (1)
     {
       int skip = 0;
@@ -289,13 +187,13 @@ static void dbus_read_servers(DBusMessage *message)
 	  domain = NULL;
 	
 	if (!skip)
-	  add_update_server(&addr, &source_addr, NULL, domain);
+	  add_update_server(SERV_FROM_DBUS, &addr, &source_addr, NULL, domain);
      
       } while (dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_STRING); 
     }
    
   /* unlink and free anything still marked. */
-  cleanup_dbus();
+  cleanup_servers();
 }
 
 static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
@@ -319,7 +217,7 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
                                     strings ? "Expected array of string" : "Expected array of string arrays");
      }
  
-  mark_dbus();
+  mark_servers(SERV_FROM_DBUS);
 
   /* array_iter points to each "as" element in the outer array */
   dbus_message_iter_recurse(&iter, &array_iter);
@@ -327,6 +225,7 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
     {
       const char *str = NULL;
       union  mysockaddr addr, source_addr;
+      int flags = 0;
       char interface[IF_NAMESIZE];
       char *str_addr, *str_domain = NULL;
 
@@ -416,16 +315,19 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
       memset(&interface, 0, sizeof(interface));
 
       /* parse the IP address */
-      addr_err = parse_server(str_addr, &addr, &source_addr, (char *) &interface, NULL);
-
-      if (addr_err)
-        {
+      if ((addr_err = parse_server(str_addr, &addr, &source_addr, (char *) &interface, &flags)))
+	{
           error = dbus_message_new_error_printf(message, DBUS_ERROR_INVALID_ARGS,
                                                 "Invalid IP address '%s': %s",
                                                 str, addr_err);
           break;
         }
-
+      
+      /* 0.0.0.0 for server address == NULL, for Dbus */
+      if (addr.in.sin_family == AF_INET &&
+          addr.in.sin_addr.s_addr == 0)
+        flags |= SERV_NO_ADDR;
+      
       if (strings)
 	{
 	  char *p;
@@ -439,7 +341,7 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
 	    else 
 	      p = NULL;
 	    
-	    add_update_server(&addr, &source_addr, interface, str_domain);
+	    add_update_server(flags | SERV_FROM_DBUS, &addr, &source_addr, interface, str_domain);
 	  } while ((str_domain = p));
 	}
       else
@@ -454,7 +356,7 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
 	      dbus_message_iter_get_basic(&string_iter, &str);
 	    dbus_message_iter_next (&string_iter);
 	    
-	    add_update_server(&addr, &source_addr, interface, str);
+	    add_update_server(flags | SERV_FROM_DBUS, &addr, &source_addr, interface, str);
 	  } while (dbus_message_iter_get_arg_type(&string_iter) == DBUS_TYPE_STRING);
 	}
 	 
@@ -462,7 +364,7 @@ static DBusMessage* dbus_read_servers_ex(DBusMessage *message, int strings)
       dbus_message_iter_next(&array_iter);
     }
 
-  cleanup_dbus();
+  cleanup_servers();
 
   if (dup)
     free(dup);

src/dhcp-common.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -272,27 +272,26 @@ static int is_config_in_context(struct dhcp_context *context, struct dhcp_config
   if (!context) /* called via find_config() from lease_update_from_configs() */
     return 1; 
 
-  if (!(context->flags & CONTEXT_V6))
-    {
-      if (!(config->flags & CONFIG_ADDR))
+  if (!(config->flags & (CONFIG_ADDR | CONFIG_ADDR6)))
+    return 1;
+  
+#ifdef HAVE_DHCP6
+  if ((context->flags & CONTEXT_V6) && (config->flags & CONFIG_WILDCARD))
+    return 1;
+#endif
+
+  for (; context; context = context->current)
+#ifdef HAVE_DHCP6
+    if (context->flags & CONTEXT_V6) 
+      {
+	if ((config->flags & CONFIG_ADDR6) && is_same_net6(&config->addr6, &context->start6, context->prefix))
+	  return 1;
+      }
+    else 
+#endif
+      if ((config->flags & CONFIG_ADDR) && is_same_net(config->addr, context->start, context->netmask))
 	return 1;
 
-      for (; context; context = context->current)
-	if (is_same_net(config->addr, context->start, context->netmask))
-	  return 1;
-    }
-#ifdef HAVE_DHCP6
-  else 
-    {
-      if (!(config->flags & CONFIG_ADDR6) || (config->flags & CONFIG_WILDCARD))
-	return 1;
-      
-      for (; context; context = context->current)
-	if (is_same_net6(&config->addr6, &context->start6, context->prefix))
-      return 1;
-    }
-#endif
-  
   return 0;
 }
 
@@ -316,8 +315,9 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
 	    return config;
 	  
 	  /* dhcpcd prefixes ASCII client IDs by zero which is wrong, but we try and
-	     cope with that here */
-	  if (!(context->flags & CONTEXT_V6) && *clid == 0 && config->clid_len == clid_len-1  &&
+	     cope with that here. This is IPv4 only. context==NULL implies IPv4, 
+	     see lease_update_from_configs() */
+	  if ((!context || !(context->flags & CONTEXT_V6)) && *clid == 0 && config->clid_len == clid_len-1  &&
 	      memcmp(config->clid, clid+1, clid_len-1) == 0 &&
 	      is_config_in_context(context, config))
 	    return config;
@@ -399,13 +399,13 @@ void dhcp_update_configs(struct dhcp_config *configs)
 	    if (cache_find_by_name(crec, config->hostname, 0, cacheflags))
 	      {
 		/* use primary (first) address */
-	      while (crec && !(crec->flags & F_REVERSE))
-		crec = cache_find_by_name(crec, config->hostname, 0, cacheflags);
-	      if (!crec)
-		continue; /* should be never */
-	      inet_ntop(prot, &crec->addr.addr, daemon->addrbuff, ADDRSTRLEN);
-	      my_syslog(MS_DHCP | LOG_WARNING, _("%s has more than one address in hostsfile, using %s for DHCP"), 
-			config->hostname, daemon->addrbuff);
+		while (crec && !(crec->flags & F_REVERSE))
+		  crec = cache_find_by_name(crec, config->hostname, 0, cacheflags);
+		if (!crec)
+		  continue; /* should be never */
+		inet_ntop(prot, &crec->addr.addr, daemon->addrbuff, ADDRSTRLEN);
+		my_syslog(MS_DHCP | LOG_WARNING, _("%s has more than one address in hostsfile, using %s for DHCP"), 
+			  config->hostname, daemon->addrbuff);
 	      }
 	    
 	    if (prot == AF_INET && 
@@ -445,7 +445,7 @@ void dhcp_update_configs(struct dhcp_config *configs)
 }
 
 #ifdef HAVE_LINUX_NETWORK 
-void bindtodevice(int fd)
+char *whichdevice(void)
 {
   /* If we are doing DHCP on exactly one interface, and running linux, do SO_BINDTODEVICE
      to that device. This is for the use case of  (eg) OpenStack, which runs a new
@@ -453,17 +453,20 @@ void bindtodevice(int fd)
      individual processes don't always see the packets they should.
      SO_BINDTODEVICE is only available Linux. 
 
-     Note that if wildcards are used in --interface, or a configured interface doesn't
-     yet exist, then more interfaces may arrive later, so we can't safely assert there
-     is only one interface and proceed.
+     Note that if wildcards are used in --interface, or --interface is not used at all,
+     or a configured interface doesn't yet exist, then more interfaces may arrive later, 
+     so we can't safely assert there is only one interface and proceed.
 */
   
   struct irec *iface, *found;
   struct iname *if_tmp;
-
+  
+  if (!daemon->if_names)
+    return NULL;
+  
   for (if_tmp = daemon->if_names; if_tmp; if_tmp = if_tmp->next)
     if (if_tmp->name && (!if_tmp->used || strchr(if_tmp->name, '*')))
-      return;
+      return NULL;
 
   for (found = NULL, iface = daemon->interfaces; iface; iface = iface->next)
     if (iface->dhcp_ok)
@@ -471,18 +474,24 @@ void bindtodevice(int fd)
 	if (!found)
 	  found = iface;
 	else if (strcmp(found->name, iface->name) != 0) 
-	  return; /* more than one. */
+	  return NULL; /* more than one. */
       }
-  
+
   if (found)
-    {
-      struct ifreq ifr;
-      strcpy(ifr.ifr_name, found->name);
-      /* only allowed by root. */
-      if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr)) == -1 &&
-	  errno != EPERM)
-	die(_("failed to set SO_BINDTODEVICE on DHCP socket: %s"), NULL, EC_BADNET);
-    }
+    return found->name;
+
+  return NULL;
+}
+ 
+void  bindtodevice(char *device, int fd)
+{
+  struct ifreq ifr;
+  
+  strcpy(ifr.ifr_name, device);
+  /* only allowed by root. */
+  if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr)) == -1 &&
+      errno != EPERM)
+    die(_("failed to set SO_BINDTODEVICE on DHCP socket: %s"), NULL, EC_BADNET);
 }
 #endif
 
@@ -830,11 +839,11 @@ void log_context(int family, struct dhcp_context *context)
       if (indextoname(daemon->icmp6fd, context->if_index, ifrn_name))
 	sprintf(p, "%s for %s", (context->flags & CONTEXT_OLD) ? "old prefix" : "constructed", ifrn_name);
     }
-  else if (context->flags & CONTEXT_TEMPLATE)
+  else if (context->flags & CONTEXT_TEMPLATE && !(context->flags & CONTEXT_RA_STATELESS))
     {
       template = p;
       p += sprintf(p, ", ");
-       
+      
       sprintf(p, "template for %s", context->template_interface);  
     }
 #endif
@@ -842,21 +851,37 @@ void log_context(int family, struct dhcp_context *context)
   if (!(context->flags & CONTEXT_OLD) &&
       ((context->flags & CONTEXT_DHCP) || family == AF_INET)) 
     {
-      inet_ntop(family, start, daemon->dhcp_buff, 256);
+#ifdef HAVE_DHCP6
+      if (context->flags & CONTEXT_RA_STATELESS)
+	{
+	  if (context->flags & CONTEXT_TEMPLATE)
+	    strncpy(daemon->dhcp_buff, context->template_interface, 256);
+	  else
+	    strcpy(daemon->dhcp_buff, daemon->addrbuff);
+	}
+      else 
+#endif
+	inet_ntop(family, start, daemon->dhcp_buff, 256);
       inet_ntop(family, end, daemon->dhcp_buff3, 256);
       my_syslog(MS_DHCP | LOG_INFO, 
-	      (context->flags & CONTEXT_RA_STATELESS) ? 
-	      _("%s stateless on %s%.0s%.0s%s") :
-	      (context->flags & CONTEXT_STATIC) ? 
-	      _("%s, static leases only on %.0s%s%s%.0s") :
-	      (context->flags & CONTEXT_PROXY) ?
-	      _("%s, proxy on subnet %.0s%s%.0s%.0s") :
-	      _("%s, IP range %s -- %s%s%.0s"),
-	      (family != AF_INET) ? "DHCPv6" : "DHCP",
+		(context->flags & CONTEXT_RA_STATELESS) ? 
+		_("%s stateless on %s%.0s%.0s%s") :
+		(context->flags & CONTEXT_STATIC) ? 
+		_("%s, static leases only on %.0s%s%s%.0s") :
+		(context->flags & CONTEXT_PROXY) ?
+		_("%s, proxy on subnet %.0s%s%.0s%.0s") :
+		_("%s, IP range %s -- %s%s%.0s"),
+		(family != AF_INET) ? "DHCPv6" : "DHCP",
 		daemon->dhcp_buff, daemon->dhcp_buff3, daemon->namebuff, template);
     }
   
 #ifdef HAVE_DHCP6
+  if (context->flags & CONTEXT_TEMPLATE)
+    {
+      strcpy(daemon->addrbuff, context->template_interface);
+      template = "";
+    }
+
   if ((context->flags & CONTEXT_RA_NAME) && !(context->flags & CONTEXT_OLD))
     my_syslog(MS_DHCP | LOG_INFO, _("DHCPv4-derived IPv6 names on %s%s"), daemon->addrbuff, template);
   

src/dhcp-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -23,7 +23,7 @@
 struct iface_param {
   struct dhcp_context *current;
   struct dhcp_relay *relay;
-  struct in6_addr fallback, relay_local;
+  struct in6_addr fallback, relay_local, ll_addr, ula_addr;
   int ind, addr_match;
 };
 
@@ -158,6 +158,8 @@ void dhcp6_packet(time_t now)
       parm.ind = if_index;
       parm.addr_match = 0;
       memset(&parm.fallback, 0, IN6ADDRSZ);
+      memset(&parm.ll_addr, 0, IN6ADDRSZ);
+      memset(&parm.ula_addr, 0, IN6ADDRSZ);
       
       for (context = daemon->dhcp6; context; context = context->next)
 	if (IN6_IS_ADDR_UNSPECIFIED(&context->start6) && context->prefix == 0)
@@ -210,7 +212,7 @@ void dhcp6_packet(time_t now)
       lease_prune(NULL, now); /* lose any expired leases */
       
       port = dhcp6_reply(parm.current, if_index, ifr.ifr_name, &parm.fallback, 
-			 sz, &from.sin6_addr, now);
+			 &parm.ll_addr, &parm.ula_addr, sz, &from.sin6_addr, now);
       
       lease_update_file(now);
       lease_update_dns(0);
@@ -309,6 +311,11 @@ static int complete_context6(struct in6_addr *local,  int prefix,
   
   if (if_index == param->ind)
     {
+      if (IN6_IS_ADDR_LINKLOCAL(local))
+	param->ll_addr = *local;
+      else if (IN6_IS_ADDR_ULA(local))
+	param->ula_addr = *local;
+
       if (!IN6_IS_ADDR_LOOPBACK(local) &&
 	  !IN6_IS_ADDR_LINKLOCAL(local) &&
 	  !IN6_IS_ADDR_MULTICAST(local))
@@ -330,9 +337,9 @@ static int complete_context6(struct in6_addr *local,  int prefix,
 	    {
 	      if ((context->flags & CONTEXT_DHCP) &&
 		  !(context->flags & (CONTEXT_TEMPLATE | CONTEXT_OLD)) &&
-		  prefix == context->prefix &&
-		  is_same_net6(local, &context->start6, prefix) &&
-		  is_same_net6(local, &context->end6, prefix))
+		  prefix <= context->prefix &&
+		  is_same_net6(local, &context->start6, context->prefix) &&
+		  is_same_net6(local, &context->end6, context->prefix))
 		{
 		  
 		  
@@ -394,7 +401,7 @@ struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct
   return NULL;
 }
 
-struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned char *clid, int clid_len, 
+struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned char *clid, int clid_len, int temp_addr,
 				       int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans)   
 {
   /* Find a free address: exclude anything in use and anything allocated to
@@ -411,9 +418,13 @@ struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned c
   u64 j; 
 
   /* hash hwaddr: use the SDBM hashing algorithm.  This works
-     for MAC addresses, let's see how it manages with client-ids! */
-  for (j = iaid, i = 0; i < clid_len; i++)
-    j += clid[i] + (j << 6) + (j << 16) - j;
+     for MAC addresses, let's see how it manages with client-ids! 
+     For temporary addresses, we generate a new random one each time. */
+  if (temp_addr)
+    j = rand64();
+  else
+    for (j = iaid, i = 0; i < clid_len; i++)
+      j += clid[i] + (j << 6) + (j << 16) - j;
   
   for (pass = 0; pass <= plain_range ? 1 : 0; pass++)
     for (c = context; c; c = c->current)
@@ -423,7 +434,7 @@ struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned c
 	continue;
       else
 	{ 
-	  if (option_bool(OPT_CONSEC_ADDR))
+	  if (!temp_addr && option_bool(OPT_CONSEC_ADDR))
 	    /* seed is largest extant lease addr in this context */
 	    start = lease_find_max_addr6(c) + serial;
 	  else
@@ -523,6 +534,8 @@ int config_valid(struct dhcp_config *config, struct dhcp_context *context, struc
 
 void make_duid(time_t now)
 {
+  (void)now;
+
   if (daemon->duid_config)
     {
       unsigned char *p;
@@ -535,8 +548,14 @@ void make_duid(time_t now)
     }
   else
     {
+      time_t newnow = 0;
+      
+      /* If we have no persistent lease database, or a non-stable RTC, use DUID_LL (newnow == 0) */
+#ifndef HAVE_BROKEN_RTC
       /* rebase epoch to 1/1/2000 */
-      time_t newnow = now - 946684800;
+      if (!option_bool(OPT_LEASE_RO) || daemon->lease_change_command)
+	newnow = now - 946684800;
+#endif      
       
       iface_enumerate(AF_LOCAL, &newnow, make_duid1);
       
@@ -555,23 +574,27 @@ static int make_duid1(int index, unsigned int type, char *mac, size_t maclen, vo
   unsigned char *p;
   (void)index;
   (void)parm;
-
+  time_t newnow = *((time_t *)parm);
+  
   if (type >= 256)
     return 1;
 
-#ifdef HAVE_BROKEN_RTC
-  daemon->duid = p = safe_malloc(maclen + 4);
-  daemon->duid_len = maclen + 4;
-  PUTSHORT(3, p); /* DUID_LL */
-  PUTSHORT(type, p); /* address type */
-#else
-  daemon->duid = p = safe_malloc(maclen + 8);
-  daemon->duid_len = maclen + 8;
-  PUTSHORT(1, p); /* DUID_LLT */
-  PUTSHORT(type, p); /* address type */
-  PUTLONG(*((time_t *)parm), p); /* time */
-#endif
-
+  if (newnow == 0)
+    {
+      daemon->duid = p = safe_malloc(maclen + 4);
+      daemon->duid_len = maclen + 4;
+      PUTSHORT(3, p); /* DUID_LL */
+      PUTSHORT(type, p); /* address type */
+    }
+  else
+    {
+      daemon->duid = p = safe_malloc(maclen + 8);
+      daemon->duid_len = maclen + 8;
+      PUTSHORT(1, p); /* DUID_LLT */
+      PUTSHORT(type, p); /* address type */
+      PUTLONG(*((time_t *)parm), p); /* time */
+    }
+  
   memcpy(p, mac, maclen);
 
   return 0;
@@ -615,16 +638,17 @@ static int construct_worker(struct in6_addr *local, int prefix,
     if (!(template->flags & CONTEXT_TEMPLATE))
       {
 	/* non-template entries, just fill in interface and local addresses */
-	if (prefix == template->prefix &&
-	    is_same_net6(local, &template->start6, prefix) &&
-	    is_same_net6(local, &template->end6, prefix))
+	if (prefix <= template->prefix &&
+	    is_same_net6(local, &template->start6, template->prefix) &&
+	    is_same_net6(local, &template->end6, template->prefix))
 	  {
 	    template->if_index = if_index;
 	    template->local6 = *local;
 	  }
 	
       }
-    else if (wildcard_match(template->template_interface, ifrn_name))
+    else if (wildcard_match(template->template_interface, ifrn_name) &&
+	     template->prefix >= prefix)
       {
 	start6 = *local;
 	setaddr6part(&start6, addr6part(&template->start6));
@@ -644,6 +668,7 @@ static int construct_worker(struct in6_addr *local, int prefix,
 		  log_context(AF_INET6, context); 
 		  /* fast RAs for a while */
 		  ra_start_unsolicted(param->now, context);
+		  param->newone = 1; 
 		  /* Add address to name again */
 		  if (context->flags & CONTEXT_RA_NAME)
 		    param->newname = 1;
@@ -702,7 +727,6 @@ void dhcp_construct_contexts(time_t now)
      
       if (context->flags & CONTEXT_GC && !(context->flags & CONTEXT_OLD))
 	{
-	  
 	  if ((context->flags & (CONTEXT_RA_ONLY | CONTEXT_RA_NAME | CONTEXT_RA_STATELESS)) ||
 	      option_bool(OPT_RA))
 	    {

src/dns-protocol.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -36,26 +36,48 @@
 
 #define C_IN            1               /* the arpa internet */
 #define C_CHAOS         3               /* for chaos net (MIT) */
+#define C_HESIOD        4               /* hesiod */
 #define C_ANY           255             /* wildcard match */
 
 #define T_A		1
-#define T_NS            2               
+#define T_NS            2
+#define T_MD            3
+#define T_MF            4             
 #define T_CNAME		5
 #define T_SOA		6
+#define T_MB            7
+#define T_MG            8
+#define T_MR            9
 #define T_PTR		12
+#define T_MINFO         14
 #define T_MX		15
 #define T_TXT		16
+#define T_RP            17
+#define T_AFSDB         18
+#define T_RT            21
 #define T_SIG		24
+#define T_PX            26
 #define T_AAAA		28
+#define T_NXT           30
 #define T_SRV		33
 #define T_NAPTR		35
+#define T_KX            36
+#define T_DNAME         39
 #define T_OPT		41
+#define T_DS            43
+#define T_RRSIG         46
+#define T_NSEC          47
+#define T_DNSKEY        48
+#define T_NSEC3         50
 #define	T_TKEY		249		
 #define	T_TSIG		250
 #define T_AXFR          252
 #define T_MAILB		253	
 #define T_ANY		255
 
+#define EDNS0_OPTION_MAC            65001 /* dyndns.org temporary assignment */
+#define EDNS0_OPTION_CLIENT_SUBNET  8     /* IANA */
+
 struct dns_header {
   u16 id;
   u8  hb3,hb4;
@@ -74,6 +96,8 @@ struct dns_header {
 #define HB4_RCODE    0x0f
 
 #define OPCODE(x)          (((x)->hb3 & HB3_OPCODE) >> 3)
+#define SET_OPCODE(x, code) (x)->hb3 = ((x)->hb3 & ~HB3_OPCODE) | code
+
 #define RCODE(x)           ((x)->hb4 & HB4_RCODE)
 #define SET_RCODE(x, code) (x)->hb4 = ((x)->hb4 & ~HB4_RCODE) | code
   
@@ -113,3 +137,8 @@ struct dns_header {
 	(cp) += 4; \
 }
 
+#define CHECK_LEN(header, pp, plen, len) \
+    ((size_t)((pp) - (unsigned char *)(header) + (len)) <= (plen))
+
+#define ADD_RDLEN(header, pp, plen, len) \
+  (!CHECK_LEN(header, pp, plen, len) ? 0 : (((pp) += (len)), 1))

src/dnsmasq.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -50,6 +50,8 @@ int main (int argc, char **argv)
 #if defined(HAVE_LINUX_NETWORK)
   cap_user_header_t hdr = NULL;
   cap_user_data_t data = NULL;
+  char *bound_device = NULL;
+  int did_bind = 0;
 #endif 
 #if defined(HAVE_DHCP) || defined(HAVE_DHCP6)
   struct dhcp_context *context;
@@ -79,15 +81,28 @@ int main (int argc, char **argv)
   umask(022); /* known umask, create leases and pid files as 0644 */
 
   read_opts(argc, argv, compile_opts);
-    
+ 
   if (daemon->edns_pktsz < PACKETSZ)
     daemon->edns_pktsz = PACKETSZ;
+#ifdef HAVE_DNSSEC
+  /* Enforce min packet big enough for DNSSEC */
+  if (option_bool(OPT_DNSSEC_VALID) && daemon->edns_pktsz < EDNS_PKTSZ)
+    daemon->edns_pktsz = EDNS_PKTSZ;
+#endif
+
   daemon->packet_buff_sz = daemon->edns_pktsz > DNSMASQ_PACKETSZ ? 
     daemon->edns_pktsz : DNSMASQ_PACKETSZ;
   daemon->packet = safe_malloc(daemon->packet_buff_sz);
-
+  
   daemon->addrbuff = safe_malloc(ADDRSTRLEN);
-
+  
+#ifdef HAVE_DNSSEC
+  if (option_bool(OPT_DNSSEC_VALID))
+    {
+      daemon->keyname = safe_malloc(MAXDNAME);
+      daemon->workspacename = safe_malloc(MAXDNAME);
+    }
+#endif
 
 #ifdef HAVE_DHCP
   if (!daemon->lease_file)
@@ -129,6 +144,19 @@ int main (int argc, char **argv)
     }
 #endif
   
+  if (option_bool(OPT_DNSSEC_VALID))
+    {
+#ifdef HAVE_DNSSEC
+      if (!daemon->ds)
+	die(_("No trust anchors provided for DNSSEC"), NULL, EC_BADCONF);
+      
+      if (daemon->cachesize < CACHESIZ)
+	die(_("Cannot reduce cache size from default when DNSSEC enabled"), NULL, EC_BADCONF);
+#else 
+      die(_("DNSSEC not available: set HAVE_DNSSEC in src/config.h"), NULL, EC_BADCONF);
+#endif
+    }
+
 #ifndef HAVE_TFTP
   if (option_bool(OPT_TFTP))
     die(_("TFTP server not available: set HAVE_TFTP in src/config.h"), NULL, EC_BADCONF);
@@ -180,7 +208,7 @@ int main (int argc, char **argv)
 	    daemon->doing_dhcp6 = 1;
 	  if (context->flags & CONTEXT_RA)
 	    daemon->doing_ra = 1;
-#ifndef  HAVE_LINUX_NETWORK
+#if !defined(HAVE_LINUX_NETWORK) && !defined(HAVE_BSD_NETWORK)
 	  if (context->flags & CONTEXT_TEMPLATE)
 	    die (_("dhcp-range constructor not available on this platform"), NULL, EC_BADCONF);
 #endif 
@@ -218,13 +246,15 @@ int main (int argc, char **argv)
     ipset_init();
 #endif
 
-#ifdef HAVE_LINUX_NETWORK
+#if  defined(HAVE_LINUX_NETWORK)
   netlink_init();
-  
-  if (option_bool(OPT_NOWILD) && option_bool(OPT_CLEVERBIND))
-    die(_("cannot set --bind-interfaces and --bind-dynamic"), NULL, EC_BADCONF);
+#elif defined(HAVE_BSD_NETWORK)
+  route_init();
 #endif
 
+  if (option_bool(OPT_NOWILD) && option_bool(OPT_CLEVERBIND))
+    die(_("cannot set --bind-interfaces and --bind-dynamic"), NULL, EC_BADCONF);
+  
   if (!enumerate_interfaces(1) || !enumerate_interfaces(0))
     die(_("failed to find list of interfaces: %s"), NULL, EC_MISC);
   
@@ -239,18 +269,29 @@ int main (int argc, char **argv)
 
 #if defined(HAVE_LINUX_NETWORK) && defined(HAVE_DHCP)
       /* after enumerate_interfaces()  */
+      bound_device = whichdevice();
+      
       if (daemon->dhcp)
 	{
-	  if (!daemon->relay4)
-	    bindtodevice(daemon->dhcpfd);
-	  if (daemon->enable_pxe)
-	    bindtodevice(daemon->pxefd);
+	  if (!daemon->relay4 && bound_device)
+	    {
+	      bindtodevice(bound_device, daemon->dhcpfd);
+	      did_bind = 1;
+	    }
+	  if (daemon->enable_pxe && bound_device)
+	    {
+	      bindtodevice(bound_device, daemon->pxefd);
+	      did_bind = 1;
+	    }
 	}
 #endif
 
 #if defined(HAVE_LINUX_NETWORK) && defined(HAVE_DHCP6)
-      if (daemon->doing_dhcp6 && !daemon->relay6)
-	bindtodevice(daemon->dhcp6fd);
+      if (daemon->doing_dhcp6 && !daemon->relay6 && bound_device)
+	{
+	  bindtodevice(bound_device, daemon->dhcp6fd);
+	  did_bind = 1;
+	}
 #endif
     }
   else 
@@ -260,10 +301,18 @@ int main (int argc, char **argv)
   /* after enumerate_interfaces() */
   if (daemon->doing_dhcp6 || daemon->relay6 || daemon->doing_ra)
     join_multicast(1);
+
+  /* After netlink_init() and before create_helper() */
+  lease_make_duid(now);
 #endif
   
   if (daemon->port != 0)
-    cache_init();
+    {
+      cache_init();
+#ifdef HAVE_DNSSEC
+      blockdata_init();
+#endif
+    }
     
   if (option_bool(OPT_DBUS))
 #ifdef HAVE_DBUS
@@ -348,7 +397,7 @@ int main (int argc, char **argv)
   piperead = pipefd[0];
   pipewrite = pipefd[1];
   /* prime the pipe to load stuff first time. */
-  send_event(pipewrite, EVENT_RELOAD, 0, NULL); 
+  send_event(pipewrite, EVENT_INIT, 0, NULL); 
 
   err_pipe[1] = -1;
   
@@ -613,12 +662,29 @@ int main (int argc, char **argv)
     }
 #endif
 
+  if (option_bool(OPT_LOCAL_SERVICE))
+    my_syslog(LOG_INFO, _("DNS service limited to local subnets"));
+  
+#ifdef HAVE_DNSSEC
+  if (option_bool(OPT_DNSSEC_VALID))
+    {
+      my_syslog(LOG_INFO, _("DNSSEC validation enabled"));
+      if (option_bool(OPT_DNSSEC_TIME))
+	my_syslog(LOG_INFO, _("DNSSEC signature timestamps not checked until first cache reload"));
+    }
+#endif
+
   if (log_err != 0)
     my_syslog(LOG_WARNING, _("warning: failed to change owner of %s: %s"), 
 	      daemon->log_file, strerror(log_err));
-
+  
   if (bind_fallback)
     my_syslog(LOG_WARNING, _("setting --bind-interfaces option because of OS limitations"));
+
+  if (option_bool(OPT_NOWILD))
+    warn_bound_listeners();
+
+  warn_int_names();
   
   if (!option_bool(OPT_NOWILD)) 
     for (if_tmp = daemon->if_names; if_tmp; if_tmp = if_tmp->next)
@@ -659,6 +725,11 @@ int main (int argc, char **argv)
     my_syslog(MS_DHCP | LOG_INFO, _("IPv6 router advertisement enabled"));
 #  endif
 
+#  ifdef HAVE_LINUX_NETWORK
+  if (did_bind)
+    my_syslog(MS_DHCP | LOG_INFO, _("DHCP, sockets bound exclusively to interface %s"), bound_device);
+#  endif
+
   /* after dhcp_contruct_contexts */
   if (daemon->dhcp || daemon->doing_dhcp6)
     lease_find_interfaces(now);
@@ -782,11 +853,14 @@ int main (int argc, char **argv)
 	}
 #endif
 
-#ifdef HAVE_LINUX_NETWORK
+#if defined(HAVE_LINUX_NETWORK)
       FD_SET(daemon->netlinkfd, &rset);
       bump_maxfd(daemon->netlinkfd, &maxfd);
+#elif defined(HAVE_BSD_NETWORK)
+      FD_SET(daemon->routefd, &rset);
+      bump_maxfd(daemon->routefd, &maxfd);
 #endif
-      
+
       FD_SET(piperead, &rset);
       bump_maxfd(piperead, &maxfd);
 
@@ -838,11 +912,15 @@ int main (int argc, char **argv)
 	  enumerate_interfaces(0);
 	  /* NB, is_dad_listeners() == 1 --> we're binding interfaces */
 	  create_bound_listeners(0);
+	  warn_bound_listeners();
 	}
 
-#ifdef HAVE_LINUX_NETWORK
+#if defined(HAVE_LINUX_NETWORK)
       if (FD_ISSET(daemon->netlinkfd, &rset))
 	netlink_multicast(now);
+#elif defined(HAVE_BSD_NETWORK)
+      if (FD_ISSET(daemon->routefd, &rset))
+	route_sock(now);
 #endif
 
       /* Check for changes to resolv files once per second max. */
@@ -1046,7 +1124,7 @@ static void async_event(int pipe, time_t now)
 {
   pid_t p;
   struct event_desc ev;
-  int i;
+  int i, check = 0;
   char *msg;
   
   /* NOTE: the memory used to return msg is leaked: use msgs in events only
@@ -1056,12 +1134,36 @@ static void async_event(int pipe, time_t now)
     switch (ev.event)
       {
       case EVENT_RELOAD:
-	clear_cache_and_reload(now);
-	if (daemon->port != 0 && daemon->resolv_files && option_bool(OPT_NO_POLL))
+#ifdef HAVE_DNSSEC
+	if (option_bool(OPT_DNSSEC_VALID) && option_bool(OPT_DNSSEC_TIME))
 	  {
-	    reload_servers(daemon->resolv_files->name);
-	    check_servers();
+	    my_syslog(LOG_INFO, _("now checking DNSSEC signature timestamps"));
+	    reset_option_bool(OPT_DNSSEC_TIME);
+	  } 
+#endif
+	/* fall through */
+	
+      case EVENT_INIT:
+	clear_cache_and_reload(now);
+	
+	if (daemon->port != 0)
+	  {
+	    if (daemon->resolv_files && option_bool(OPT_NO_POLL))
+	      {
+		reload_servers(daemon->resolv_files->name);
+		check = 1;
+	      }
+
+	    if (daemon->servers_file)
+	      {
+		read_servers_file();
+		check = 1;
+	      }
+
+	    if (check)
+	      check_servers();
 	  }
+
 #ifdef HAVE_DHCP
 	rerun_scripts();
 #endif
@@ -1277,7 +1379,7 @@ static int set_dns_listeners(time_t now, fd_set *set, int *maxfdp)
   
   /* will we be able to get memory? */
   if (daemon->port != 0)
-    get_new_frec(now, &wait);
+    get_new_frec(now, &wait, 0);
   
   for (serverfdp = daemon->sfds; serverfdp; serverfdp = serverfdp->next)
     {

src/dnsmasq.h

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley" 
+#define COPYRIGHT "Copyright (c) 2000-2014 Simon Kelley" 
 
 #ifndef NO_LARGEFILE
 /* Ensure we can use files >2GB (log files may grow this big) */
@@ -50,12 +50,16 @@
 #include <getopt.h>
 
 #include "config.h"
+#include "ip6addr.h"
 
 typedef unsigned char u8;
 typedef unsigned short u16;
 typedef unsigned int u32;
 typedef unsigned long long u64;
 
+#define countof(x)      (long)(sizeof(x) / sizeof(x[0]))
+#define MIN(a,b)        ((a) < (b) ? (a) : (b))
+
 #include "dns-protocol.h"
 #include "dhcp-protocol.h"
 #ifdef HAVE_DHCP6
@@ -160,6 +164,7 @@ struct event_desc {
 #define EVENT_FORK_ERR  18
 #define EVENT_LUA_ERR   19
 #define EVENT_TFTP_ERR  20
+#define EVENT_INIT      21
 
 /* Exit codes. */
 #define EC_GOOD        0
@@ -213,7 +218,7 @@ struct event_desc {
 #define OPT_NO_OVERRIDE    30
 #define OPT_NO_REBIND      31
 #define OPT_ADD_MAC        32
-#define OPT_DNSSEC         33
+#define OPT_DNSSEC_PROXY   33
 #define OPT_CONSEC_ADDR    34
 #define OPT_CONNTRACK      35
 #define OPT_FQDN_UPDATE    36
@@ -221,8 +226,16 @@ struct event_desc {
 #define OPT_TFTP_LC        38
 #define OPT_CLEVERBIND     39
 #define OPT_TFTP           40
-#define OPT_FAST_RA        41
-#define OPT_LAST           42
+#define OPT_CLIENT_SUBNET  41
+#define OPT_QUIET_DHCP     42
+#define OPT_QUIET_DHCP6    43
+#define OPT_QUIET_RA	   44
+#define OPT_DNSSEC_VALID   45
+#define OPT_DNSSEC_TIME    46
+#define OPT_DNSSEC_DEBUG   47
+#define OPT_DNSSEC_NO_SIGN 48 
+#define OPT_LOCAL_SERVICE  49
+#define OPT_LAST           50
 
 /* extra flags for my_syslog, we use a couple of facilities since they are known 
    not to occupy the same bits as priorities, no matter how syslog.h is set up. */
@@ -235,6 +248,12 @@ struct all_addr {
 #ifdef HAVE_IPV6
     struct in6_addr addr6;
 #endif
+    /* for log_query */
+    unsigned int keytag;
+    /* for cache_insert if RRSIG, DNSKEY, DS */
+    struct {
+      unsigned short class, type;
+    } dnssec;      
   } addr;
 };
 
@@ -262,10 +281,19 @@ struct naptr {
   struct naptr *next;
 };
 
+#define TXT_STAT_CACHESIZE     1
+#define TXT_STAT_INSERTS       2
+#define TXT_STAT_EVICTIONS     3
+#define TXT_STAT_MISSES        4
+#define TXT_STAT_HITS          5
+#define TXT_STAT_AUTH          6
+#define TXT_STAT_SERVERS       7
+
 struct txt_record {
   char *name;
   unsigned char *txt;
   unsigned short class, len;
+  int stat;
   struct txt_record *next;
 };
 
@@ -277,18 +305,34 @@ struct ptr_record {
 struct cname {
   char *alias, *target;
   struct cname *next;
+}; 
+
+struct ds_config {
+  char *name, *digest;
+  int digestlen, class, algo, keytag, digest_type;
+  struct ds_config *next;
 };
 
+#define ADDRLIST_LITERAL 1
+#define ADDRLIST_IPV6    2
+
+struct addrlist {
+  struct all_addr addr;
+  int flags, prefixlen; 
+  struct addrlist *next;
+};
+
+#define AUTH6     1
+#define AUTH4     2
+
 struct auth_zone {
   char *domain;
-  struct subnet {
-    int is6, prefixlen;
-    struct in_addr addr4;
-#ifdef HAVE_IPV6
-    struct in6_addr addr6;
-#endif
-    struct subnet *next;
-  } *subnet;
+  struct auth_name_list {
+    char *name;
+    int flags;
+    struct auth_name_list *next;
+  } *interface_names;
+  struct addrlist *subnet;
   struct auth_zone *next;
 };
 
@@ -308,13 +352,8 @@ struct host_record {
 struct interface_name {
   char *name; /* domain name */
   char *intr; /* interface name */
-  struct addrlist {
-    struct all_addr addr;
-    struct addrlist *next;
-  } *addr4;
-#ifdef HAVE_IPV6
-  struct addrlist *addr6;
-#endif
+  int family; /* AF_INET, AF_INET6 or zero for both */
+  struct addrlist *addr;
   struct interface_name *next;
 };
 
@@ -323,8 +362,8 @@ union bigname {
   union bigname *next; /* freelist */
 };
 
-struct keydata {
-  struct keydata *next;
+struct blockdata {
+  struct blockdata *next;
   unsigned char key[KEYBLOCK_LEN];
 };
 
@@ -334,19 +373,32 @@ struct crec {
   union {
     struct all_addr addr;
     struct {
-      struct crec *cache;
-      int uid;
+      union {
+	struct crec *cache;
+	struct interface_name *int_name;
+      } target;
+      unsigned int uid; /* 0 if union is interface-name */
     } cname;
     struct {
-      struct keydata *keydata;
+      struct blockdata *keydata;
+      unsigned short keylen, flags, keytag;
       unsigned char algo;
-      unsigned char digest; /* DS only */
-      unsigned short flags_or_keyid; /* flags for DNSKEY, keyid for DS */
-    } key;
+    } key; 
+    struct {
+      struct blockdata *keydata;
+      unsigned short keylen, keytag;
+      unsigned char algo;
+      unsigned char digest; 
+    } ds; 
+    struct {
+      struct blockdata *keydata;
+      unsigned short keylen, type_covered, keytag;
+      char algo;
+    } sig;
   } addr;
   time_t ttd; /* time to die */
-  /* used as keylen if F_DS or F_DNSKEY, index to source for F_HOSTS */
-  int uid; 
+  /* used as class if DNSKEY/DS/RRSIG, index to source for F_HOSTS */
+  unsigned int uid; 
   unsigned short flags;
   union {
     char sname[SMALLDNAME];
@@ -380,10 +432,17 @@ struct crec {
 #define F_QUERY     (1u<<19)
 #define F_NOERR     (1u<<20)
 #define F_AUTH      (1u<<21)
+#define F_DNSSEC    (1u<<22)
+#define F_KEYTAG    (1u<<23)
+#define F_SECSTAT   (1u<<24)
+#define F_NO_RR     (1u<<25)
+#define F_IPSET     (1u<<26)
 
-/* composites */
-#define F_TYPE      (F_IPV4 | F_IPV6 | F_DNSKEY | F_DS) /* Only one may be set */
-
+/* Values of uid in crecs with F_CONFIG bit set. */
+#define SRC_INTERFACE 0
+#define SRC_CONFIG    1
+#define SRC_HOSTS     2
+#define SRC_AH        3
 
 
 /* struct sockaddr is not large enough to hold any address,
@@ -416,6 +475,7 @@ union mysockaddr {
 #define SERV_COUNTED         512  /* workspace for log code */
 #define SERV_USE_RESOLV     1024  /* forward this domain in the normal way */
 #define SERV_NO_REBIND      2048  /* inhibit dns-rebind protection */
+#define SERV_FROM_FILE      4096  /* read from --servers-file */
 
 struct serverfd {
   int fd;
@@ -448,7 +508,7 @@ struct ipsets {
 struct irec {
   union mysockaddr addr;
   struct in_addr netmask; /* only valid for IPv4 */
-  int tftp_ok, dhcp_ok, mtu, done, dad, dns_auth, index, multicast_done;
+  int tftp_ok, dhcp_ok, mtu, done, warned, dad, dns_auth, index, multicast_done, found;
   char *name; 
   struct irec *next;
 };
@@ -482,11 +542,38 @@ struct hostsfile {
   struct hostsfile *next;
   int flags;
   char *fname;
-  int index; /* matches to cache entries for logging */
+  unsigned int index; /* matches to cache entries for logging */
 };
 
+
+/* DNSSEC status values. */
+#define STAT_SECURE             1
+#define STAT_INSECURE           2
+#define STAT_BOGUS              3
+#define STAT_NEED_DS            4
+#define STAT_NEED_KEY           5
+#define STAT_TRUNCATED          6
+#define STAT_SECURE_WILDCARD    7
+#define STAT_NO_SIG             8
+#define STAT_NO_DS              9
+#define STAT_NEED_DS_NEG       10
+#define STAT_CHASE_CNAME       11
+
 #define FREC_NOREBIND           1
 #define FREC_CHECKING_DISABLED  2
+#define FREC_HAS_SUBNET         4
+#define FREC_DNSKEY_QUERY       8
+#define FREC_DS_QUERY          16
+#define FREC_AD_QUESTION       32
+#define FREC_DO_QUESTION       64
+#define FREC_ADDED_PHEADER    128
+#define FREC_CHECK_NOSIGN     256
+
+#ifdef HAVE_DNSSEC
+#define HASH_SIZE 20 /* SHA-1 digest size */
+#else
+#define HASH_SIZE sizeof(int)
+#endif
 
 struct frec {
   union mysockaddr source;
@@ -499,8 +586,15 @@ struct frec {
   unsigned int iface;
   unsigned short orig_id, new_id;
   int fd, forwardall, flags;
-  unsigned int crc;
   time_t time;
+  unsigned char *hash[HASH_SIZE];
+#ifdef HAVE_DNSSEC 
+  int class, work_counter;
+  struct blockdata *stash; /* Saved reply, whilst we validate */
+  size_t stash_len;
+  struct frec *dependent; /* Query awaiting internally-generated DNSKEY or DS query */
+  struct frec *blocking_query; /* Query which is blocking us. */
+#endif
   struct frec *next;
 };
 
@@ -549,7 +643,7 @@ struct dhcp_lease {
   struct in6_addr addr6;
   int iaid;
   struct slaac_address {
-    struct in6_addr addr, local;
+    struct in6_addr addr;
     time_t ping_time;
     int backoff; /* zero -> confirmed */
     struct slaac_address *next;
@@ -701,6 +795,12 @@ struct prefix_class {
 };
 #endif
 
+struct ra_interface {
+  char *name;
+  int interval, lifetime, prio;
+  struct ra_interface *next;
+};
+
 struct dhcp_context {
   unsigned int lease_time, addr_epoch;
   struct in_addr netmask, broadcast;
@@ -735,9 +835,8 @@ struct dhcp_context {
 #define CONTEXT_RA             (1u<<13)
 #define CONTEXT_CONF_USED      (1u<<14)
 #define CONTEXT_USED           (1u<<15)
-#define CONTEXT_NOAUTH         (1u<<16)
-#define CONTEXT_OLD            (1u<<17)
-#define CONTEXT_V6             (1u<<18)
+#define CONTEXT_OLD            (1u<<16)
+#define CONTEXT_V6             (1u<<17)
 
 
 struct ping_result {
@@ -793,6 +892,7 @@ extern struct daemon {
   unsigned int options, options2;
   struct resolvc default_resolv, *resolv_files;
   time_t last_resolv;
+  char *servers_file;
   struct mx_srv_record *mxnames;
   struct naptr *naptr;
   struct txt_record *txt, *rr;
@@ -802,6 +902,8 @@ extern struct daemon {
   struct auth_zone *auth_zones;
   struct interface_name *int_names;
   char *mxtarget;
+  int addr4_netmask;
+  int addr6_netmask;
   char *lease_file; 
   char *username, *groupname, *scriptuser;
   char *luascript;
@@ -825,6 +927,7 @@ extern struct daemon {
   unsigned long local_ttl, neg_ttl, max_ttl, max_cache_ttl, auth_ttl;
   struct hostsfile *addn_hosts;
   struct dhcp_context *dhcp, *dhcp6;
+  struct ra_interface *ra_interfaces;
   struct dhcp_config *dhcp_conf;
   struct dhcp_opt *dhcp_opts, *dhcp_match, *dhcp_opts6, *dhcp_match6;
   struct dhcp_vendor *dhcp_vendors;
@@ -855,12 +958,19 @@ extern struct daemon {
 #ifdef OPTION6_PREFIX_CLASS 
   struct prefix_class *prefix_classes;
 #endif
+#ifdef HAVE_DNSSEC
+  struct ds_config *ds;
+#endif
 
   /* globally used stuff for DNS */
   char *packet; /* packet buffer */
   int packet_buff_sz; /* size of above */
   char *namebuff; /* MAXDNAME size buffer */
-  unsigned int local_answer, queries_forwarded;
+#ifdef HAVE_DNSSEC
+  char *keyname; /* MAXDNAME size buffer */
+  char *workspacename; /* ditto */
+#endif
+  unsigned int local_answer, queries_forwarded, auth_answer;
   struct frec *frec_list;
   struct serverfd *sfds;
   struct irec *interfaces;
@@ -874,13 +984,14 @@ extern struct daemon {
   pid_t tcp_pids[MAX_PROCS];
   struct randfd randomsocks[RANDOM_SOCKS];
   int v6pktinfo; 
+  struct addrlist *interface_addrs; /* list of all addresses/prefix lengths associated with all local interfaces */
 
   /* DHCP state */
   int dhcpfd, helperfd, pxefd; 
 #if defined(HAVE_LINUX_NETWORK)
   int netlinkfd;
 #elif defined(HAVE_BSD_NETWORK)
-  int dhcp_raw_fd, dhcp_icmp_fd;
+  int dhcp_raw_fd, dhcp_icmp_fd, routefd;
 #endif
   struct iovec dhcp_packet;
   char *dhcp_buff, *dhcp_buff2, *dhcp_buff3;
@@ -911,13 +1022,13 @@ extern struct daemon {
 /* cache.c */
 void cache_init(void);
 void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg); 
-char *record_source(int index);
-void querystr(char *desc, char *str, unsigned short type);
+char *record_source(unsigned int index);
+char *querystr(char *desc, unsigned short type);
 struct crec *cache_find_by_addr(struct crec *crecp,
 				struct all_addr *addr, time_t now, 
-				unsigned short prot);
+				unsigned int prot);
 struct crec *cache_find_by_name(struct crec *crecp, 
-				char *name, time_t now, unsigned short  prot);
+				char *name, time_t now, unsigned int prot);
 void cache_end_insert(void);
 void cache_start_insert(void);
 struct crec *cache_insert(char *name, struct all_addr *addr,
@@ -927,11 +1038,18 @@ void cache_add_dhcp_entry(char *host_name, int prot, struct all_addr *host_addre
 struct in_addr a_record_from_hosts(char *name, time_t now);
 void cache_unhash_dhcp(void);
 void dump_cache(time_t now);
+int cache_make_stat(struct txt_record *t);
 char *cache_get_name(struct crec *crecp);
+char *cache_get_cname_target(struct crec *crecp);
 struct crec *cache_enumerate(int init);
+
+/* blockdata.c */
 #ifdef HAVE_DNSSEC
-struct keydata *keydata_alloc(char *data, size_t len);
-void keydata_free(struct keydata *blocks);
+void blockdata_init(void);
+void blockdata_report(void);
+struct blockdata *blockdata_alloc(char *data, size_t len);
+void *blockdata_retrieve(struct blockdata *block, size_t len, void *data);
+void blockdata_free(struct blockdata *blocks);
 #endif
 
 /* domain.c */
@@ -943,6 +1061,11 @@ int is_name_synthetic(int flags, char *name, struct all_addr *addr);
 int is_rev_synth(int flag, struct all_addr *addr, char *name);
 
 /* rfc1035.c */
+int extract_name(struct dns_header *header, size_t plen, unsigned char **pp, 
+                 char *name, int isExtract, int extrabytes);
+unsigned char *skip_name(unsigned char *ansp, struct dns_header *header, size_t plen, int extrabytes);
+unsigned char *skip_questions(struct dns_header *header, size_t plen);
+unsigned char *skip_section(unsigned char *ansp, int count, struct dns_header *header, size_t plen);
 unsigned int extract_request(struct dns_header *header, size_t qlen, 
 			       char *name, unsigned short *typep);
 size_t setup_reply(struct dns_header *header, size_t  qlen,
@@ -950,9 +1073,10 @@ size_t setup_reply(struct dns_header *header, size_t  qlen,
 		   unsigned long local_ttl);
 int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff, 
 		      time_t now, char **ipsets, int is_sign, int checkrebind,
-		      int checking_disabled);
+		      int no_cache, int secure, int *doctored);
 size_t answer_request(struct dns_header *header, char *limit, size_t qlen,  
-		   struct in_addr local_addr, struct in_addr local_netmask, time_t now);
+		      struct in_addr local_addr, struct in_addr local_netmask, 
+		      time_t now, int *ad_reqd, int *do_bit);
 int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name, 
 			     struct bogus_addr *addr, time_t now);
 unsigned char *find_pseudoheader(struct dns_header *header, size_t plen,
@@ -962,6 +1086,11 @@ unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff);
 size_t resize_packet(struct dns_header *header, size_t plen, 
 		  unsigned char *pheader, size_t hlen);
 size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3);
+size_t add_source_addr(struct dns_header *header, size_t plen, char *limit, union mysockaddr *source);
+#ifdef HAVE_DNSSEC
+size_t add_do_bit(struct dns_header *header, size_t plen, char *limit);
+#endif
+int check_source(struct dns_header *header, size_t plen, unsigned char *pseudoheader, union mysockaddr *peer);
 int add_resource_record(struct dns_header *header, char *limit, int *truncp,
 			int nameoffset, unsigned char **pp, unsigned long ttl, 
 			int *offset, unsigned short type, unsigned short class, char *format, ...);
@@ -969,15 +1098,29 @@ unsigned char *skip_questions(struct dns_header *header, size_t plen);
 int extract_name(struct dns_header *header, size_t plen, unsigned char **pp, 
 		 char *name, int isExtract, int extrabytes);
 int in_arpa_name_2_addr(char *namein, struct all_addr *addrp);
+int private_net(struct in_addr addr, int ban_localhost);
 
 /* auth.c */
 #ifdef HAVE_AUTH
-size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t now, union mysockaddr *peer_addr);
+size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, 
+		   time_t now, union mysockaddr *peer_addr, int local_query);
+int in_zone(struct auth_zone *zone, char *name, char **cut);
 #endif
 
+/* dnssec.c */
+size_t dnssec_generate_query(struct dns_header *header, char *end, char *name, int class, int type, union mysockaddr *addr);
+int dnssec_validate_by_ds(time_t now, struct dns_header *header, size_t n, 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, int *neganswer);
+int dnssec_chase_cname(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname);
+int dnskey_keytag(int alg, int flags, unsigned char *rdata, int rdlen);
+size_t filter_rrsigs(struct dns_header *header, size_t plen);
+unsigned char* hash_questions(struct dns_header *header, size_t plen, char *name);
+
 /* util.c */
 void rand_init(void);
 unsigned short rand16(void);
+u64 rand64(void);
 int legal_hostname(char *c);
 char *canonicalise(char *s, int *nomem);
 unsigned char *do_rfc1035_name(unsigned char *p, char *sval);
@@ -1022,6 +1165,7 @@ void read_opts (int argc, char **argv, char *compile_opts);
 char *option_string(int prot, unsigned int opt, unsigned char *val, 
 		    int opt_len, char *buf, int buf_len);
 void reread_dhcp(void);
+void read_servers_file(void);
 void set_option_bool(unsigned int opt);
 void reset_option_bool(unsigned int opt);
 struct hostsfile *expand_filelist(struct hostsfile *list);
@@ -1034,7 +1178,7 @@ void receive_query(struct listener *listen, time_t now);
 unsigned char *tcp_request(int confd, time_t now,
 			   union mysockaddr *local_addr, struct in_addr netmask, int auth_dns);
 void server_gone(struct server *server);
-struct frec *get_new_frec(time_t now, int *wait);
+struct frec *get_new_frec(time_t now, int *wait, int force);
 int send_from(int fd, int nowild, char *packet, size_t len, 
 	       union mysockaddr *to, struct all_addr *source,
 	       unsigned int iface);
@@ -1045,10 +1189,19 @@ int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp);
 int random_sock(int family);
 void pre_allocate_sfds(void);
 int reload_servers(char *fname);
+void mark_servers(int flag);
+void cleanup_servers(void);
+void add_update_server(int flags,
+		       union mysockaddr *addr,
+		       union mysockaddr *source_addr,
+		       const char *interface,
+		       const char *domain);
 void check_servers(void);
 int enumerate_interfaces(int reset);
 void create_wildcard_listeners(void);
 void create_bound_listeners(int die);
+void warn_bound_listeners(void);
+void warn_int_names(void);
 int is_dad_listeners(void);
 int iface_check(int family, struct all_addr *addr, char *name, int *auth_dns);
 int loopback_exception(int fd, int family, struct all_addr *addr, char *name);
@@ -1061,6 +1214,10 @@ int set_ipv6pktinfo(int fd);
 #ifdef HAVE_DHCP6
 void join_multicast(int dienow);
 #endif
+#if defined(HAVE_LINUX_NETWORK) || defined(HAVE_BSD_NETWORK)
+void newaddress(time_t now);
+#endif
+
 
 /* dhcp.c */
 #ifdef HAVE_DHCP
@@ -1097,6 +1254,7 @@ u64 lease_find_max_addr6(struct dhcp_context *context);
 void lease_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface);
 void lease_update_slaac(time_t now);
 void lease_set_iaid(struct dhcp_lease *lease, int iaid);
+void lease_make_duid(time_t now);
 #endif
 void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
 		      unsigned char *clid, int hw_len, int hw_type, int clid_len, time_t now, int force);
@@ -1147,6 +1305,8 @@ void netlink_multicast(time_t now);
 void init_bpf(void);
 void send_via_bpf(struct dhcp_packet *mess, size_t len,
 		  struct in_addr iface_addr, struct ifreq *ifr);
+void route_init(void);
+void route_sock(time_t now);
 #endif
 
 /* bpf.c or netlink.c */
@@ -1197,7 +1357,7 @@ int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr,
 #ifdef HAVE_DHCP6
 void dhcp6_init(void);
 void dhcp6_packet(time_t now);
-struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned char *clid, int clid_len, 
+struct dhcp_context *address6_allocate(struct dhcp_context *context,  unsigned char *clid, int clid_len, int temp_addr,
 				       int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans);
 int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr);
 struct dhcp_context *address6_available(struct dhcp_context *context, 
@@ -1219,7 +1379,8 @@ void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac,
 /* rfc3315.c */
 #ifdef HAVE_DHCP6
 unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name,  
-			   struct in6_addr *fallback, size_t sz, struct in6_addr *client_addr, time_t now);
+			   struct in6_addr *fallback, struct in6_addr *ll_addr, struct in6_addr *ula_addr,
+			   size_t sz, struct in6_addr *client_addr, time_t now);
 void relay_upstream6(struct dhcp_relay *relay, ssize_t sz, struct in6_addr *peer_address, u32 scope_id);
 
 unsigned short relay_reply6( struct sockaddr_in6 *peer, ssize_t sz, char *arrival_interface);
@@ -1249,7 +1410,8 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
 				int hw_type, char *hostname);
 int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type);
 #ifdef HAVE_LINUX_NETWORK
-void bindtodevice(int fd);
+char *whichdevice(void);
+void bindtodevice(char *device, int fd);
 #endif
 #  ifdef HAVE_DHCP6
 void display_opts6(void);

src/domain.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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/helper.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -64,8 +64,10 @@ struct script_data
 #ifdef HAVE_TFTP
   off_t file_len;
 #endif
-#ifdef HAVE_DHCP6
+#ifdef HAVE_IPV6
   struct in6_addr addr6;
+#endif
+#ifdef HAVE_DHCP6
   int iaid, vendorclass_count;
 #endif
   unsigned char hwaddr[DHCP_CHADDR_MAX];
@@ -479,20 +481,13 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
       if (data.action != ACTION_TFTP)
 	{
 #ifdef HAVE_DHCP6
-	  if (is6)
-	    {
-	      my_setenv("DNSMASQ_IAID", daemon->dhcp_buff3, &err);
-	      my_setenv("DNSMASQ_SERVER_DUID", daemon->dhcp_packet.iov_base, &err); 
-	      if (data.hwaddr_len != 0)
-		my_setenv("DNSMASQ_MAC", daemon->dhcp_buff, &err);
-	    }
+	  my_setenv("DNSMASQ_IAID", is6 ? daemon->dhcp_buff3 : NULL, &err);
+	  my_setenv("DNSMASQ_SERVER_DUID", is6 ? daemon->dhcp_packet.iov_base : NULL, &err); 
+	  my_setenv("DNSMASQ_MAC", is6 && data.hwaddr_len != 0 ? daemon->dhcp_buff : NULL, &err);
 #endif
 	  
-	  if (!is6 && data.clid_len != 0)
-	    my_setenv("DNSMASQ_CLIENT_ID", daemon->packet, &err);
-	  
-	  if (strlen(data.interface) != 0)
-	    my_setenv("DNSMASQ_INTERFACE", data.interface, &err);
+	  my_setenv("DNSMASQ_CLIENT_ID", !is6 && data.clid_len != 0 ? daemon->packet : NULL, &err);
+	  my_setenv("DNSMASQ_INTERFACE", strlen(data.interface) != 0 ? data.interface : NULL, &err);
 	  
 #ifdef HAVE_BROKEN_RTC
 	  sprintf(daemon->dhcp_buff2, "%u", data.length);
@@ -502,8 +497,7 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
 	  my_setenv("DNSMASQ_LEASE_EXPIRES", daemon->dhcp_buff2, &err); 
 #endif
 	  
-	  if (domain)
-	    my_setenv("DNSMASQ_DOMAIN", domain, &err);
+	  my_setenv("DNSMASQ_DOMAIN", domain, &err);
 	  
 	  end = extradata + data.ed_len;
 	  buf = extradata;
@@ -541,8 +535,8 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
 
 	  if (is6)
 	    buf = grab_extradata(buf, end, "DNSMASQ_RELAY_ADDRESS", &err);
-	  else if (data.giaddr.s_addr != 0)
-	    my_setenv("DNSMASQ_RELAY_ADDRESS", inet_ntoa(data.giaddr), &err); 
+	  else 
+	    my_setenv("DNSMASQ_RELAY_ADDRESS", data.giaddr.s_addr != 0 ? inet_ntoa(data.giaddr) : NULL, &err); 
 	  
 	  for (i = 0; buf; i++)
 	    {
@@ -550,22 +544,16 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
 	      buf = grab_extradata(buf, end, daemon->dhcp_buff2, &err);
 	    }
 	  
-	  if (data.action != ACTION_DEL && data.remaining_time != 0)
-	    {
-	      sprintf(daemon->dhcp_buff2, "%u", data.remaining_time);
-	      my_setenv("DNSMASQ_TIME_REMAINING", daemon->dhcp_buff2, &err);
-	    }
+	  sprintf(daemon->dhcp_buff2, "%u", data.remaining_time);
+	  my_setenv("DNSMASQ_TIME_REMAINING", data.action != ACTION_DEL && data.remaining_time != 0 ? daemon->dhcp_buff2 : NULL, &err);
 	  
-	  if (data.action == ACTION_OLD_HOSTNAME && hostname)
-	    {
-	      my_setenv("DNSMASQ_OLD_HOSTNAME", hostname, &err);
-	      hostname = NULL;
-	    }
+	  my_setenv("DNSMASQ_OLD_HOSTNAME", data.action == ACTION_OLD_HOSTNAME ? hostname : NULL, &err);
+	  if (data.action == ACTION_OLD_HOSTNAME)
+	    hostname = NULL;
 	}
 
-      if (option_bool(OPT_LOG_OPTS))
-	my_setenv("DNSMASQ_LOG_DHCP", "1", &err);
-	 
+      my_setenv("DNSMASQ_LOG_DHCP", option_bool(OPT_LOG_OPTS) ? "1" : NULL, &err);
+      
       /* we need to have the event_fd around if exec fails */
       if ((i = fcntl(event_fd, F_GETFD)) != -1)
 	fcntl(event_fd, F_SETFD, i | FD_CLOEXEC);
@@ -588,31 +576,44 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
 
 static void my_setenv(const char *name, const char *value, int *error)
 {
-  if (*error == 0 && setenv(name, value, 1) != 0)
-    *error = errno;
+  if (*error == 0)
+    {
+      if (!value)
+	unsetenv(name);
+      else if (setenv(name, value, 1) != 0)
+	*error = errno;
+    }
 }
  
 static unsigned char *grab_extradata(unsigned char *buf, unsigned char *end,  char *env, int *err)
 {
-  unsigned char *next;
+  unsigned char *next = NULL;
+  char *val = NULL;
 
-  if (!buf || (buf == end))
-    return NULL;
-
-  for (next = buf; *next != 0; next++)
-    if (next == end)
-      return NULL;
-  
-  if (next != buf)
+  if (buf && (buf != end))
     {
-      char *p;
-      /* No "=" in value */
-      if ((p = strchr((char *)buf, '=')))
-	*p = 0;
-      my_setenv(env, (char *)buf, err);
-    }
+      for (next = buf; ; next++)
+	if (next == end)
+	  {
+	    next = NULL;
+	    break;
+	  }
+	else if (*next == 0)
+	  break;
 
-  return next + 1;
+      if (next && (next != buf))
+	{
+	  char *p;
+	  /* No "=" in value */
+	  if ((p = strchr((char *)buf, '=')))
+	    *p = 0;
+	  val = (char *)buf;
+	}
+    }
+  
+  my_setenv(env, val, err);
+   
+  return next ? next + 1 : NULL;
 }
 
 #ifdef HAVE_LUASCRIPT

src/ip6addr.h

@@ -0,0 +1,34 @@
+/* dnsmasq is Copyright (c) 2000-2014 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
+   the Free Software Foundation; version 2 dated June, 1991, or
+   (at your option) version 3 dated 29 June, 2007.
+ 
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+     
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+
+#define IN6_IS_ADDR_ULA(a) \
+        ((((__const uint32_t *) (a))[0] & htonl (0xff000000))                 \
+         == htonl (0xfd000000))
+
+#define IN6_IS_ADDR_ULA_ZERO(a) \
+        (((__const uint32_t *) (a))[0] == htonl (0xfd000000)                        \
+         && ((__const uint32_t *) (a))[1] == 0                                \
+         && ((__const uint32_t *) (a))[2] == 0                                \
+         && ((__const uint32_t *) (a))[3] == 0)
+
+#define IN6_IS_ADDR_LINK_LOCAL_ZERO(a) \
+        (((__const uint32_t *) (a))[0] == htonl (0xfe800000)                  \
+         && ((__const uint32_t *) (a))[1] == 0                                \
+         && ((__const uint32_t *) (a))[2] == 0                                \
+         && ((__const uint32_t *) (a))[3] == 0)
+

src/lease.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -306,7 +306,7 @@ void lease_update_file(time_t now)
 	file_dirty = 0;
     }
   
-  /* Set alarm for when the first lease expires + slop. */
+  /* Set alarm for when the first lease expires. */
   next_event = 0;
 
 #ifdef HAVE_DHCP6
@@ -331,8 +331,8 @@ void lease_update_file(time_t now)
 
   for (lease = leases; lease; lease = lease->next)
     if (lease->expires != 0 &&
-	(next_event == 0 || difftime(next_event, lease->expires + 10) > 0.0))
-      next_event = lease->expires + 10;
+	(next_event == 0 || difftime(next_event, lease->expires) > 0.0))
+      next_event = lease->expires;
    
   if (err)
     {
@@ -417,15 +417,21 @@ void lease_find_interfaces(time_t now)
   iface_enumerate(AF_INET, &now, find_interface_v4);
 #ifdef HAVE_DHCP6
   iface_enumerate(AF_INET6, &now, find_interface_v6);
+#endif
+}
 
+#ifdef HAVE_DHCP6
+void lease_make_duid(time_t now)
+{
   /* If we're not doing DHCPv6, and there are not v6 leases, don't add the DUID to the database */
-  if (!daemon->duid && daemon->dhcp6)
+  if (!daemon->duid && daemon->doing_dhcp6)
     {
       file_dirty = 1;
       make_duid(now);
     }
-#endif
 }
+#endif
+
 
 
 
@@ -739,14 +745,23 @@ struct dhcp_lease *lease6_allocate(struct in6_addr *addrp, int lease_type)
 
 void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now)
 {
-  time_t exp = now + (time_t)len;
-  
+  time_t exp;
+
   if (len == 0xffffffff)
     {
       exp = 0;
       len = 0;
     }
-  
+  else
+    {
+      exp = now + (time_t)len;
+      /* Check for 2038 overflow. Make the lease
+	 inifinite in that case, as the least disruptive
+	 thing we can do. */
+      if (difftime(exp, now) <= 0.0)
+	exp = 0;
+    }
+
   if (exp != lease->expires)
     {
       dns_dirty = 1;

src/log.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -39,7 +39,6 @@ static struct iovec iov;
 static u32 netlink_pid;
 
 static int nl_async(struct nlmsghdr *h);
-static void nl_newaddress(time_t now);
 
 void netlink_init(void)
 {
@@ -203,7 +202,7 @@ int iface_enumerate(int family, void *parm, int (*callback)())
 	    /* handle async new interface address arrivals, these have to be done
 	       after we complete as we're not re-entrant */
 	    if (newaddr) 
-	      nl_newaddress(dnsmasq_time());
+	      newaddress(dnsmasq_time());
 		
 	    return callback_ok;
 	  }
@@ -265,10 +264,10 @@ int iface_enumerate(int family, void *parm, int (*callback)())
 		    
 		    if (ifa->ifa_flags & IFA_F_DEPRECATED)
 		      flags |= IFACE_DEPRECATED;
-
-		    if (ifa->ifa_flags & IFA_F_PERMANENT)
-		      flags |= IFACE_PERMANENT;
 		    
+		    if (!(ifa->ifa_flags & IFA_F_TEMPORARY))
+		      flags |= IFACE_PERMANENT;
+    		    
 		    if (addrp && callback_ok)
 		      if (!((*callback)(addrp, (int)(ifa->ifa_prefixlen), (int)(ifa->ifa_scope), 
 					(int)(ifa->ifa_index), flags, 
@@ -351,7 +350,7 @@ void netlink_multicast(time_t now)
   fcntl(daemon->netlinkfd, F_SETFL, flags);
   
   if (newaddr) 
-    nl_newaddress(now);
+    newaddress(now);
 }
 
 static int nl_async(struct nlmsghdr *h)
@@ -399,30 +398,6 @@ static int nl_async(struct nlmsghdr *h)
   
   return 0;
 }
-  	
-static void nl_newaddress(time_t now)
-{
-  (void)now;
-
-  if (option_bool(OPT_CLEVERBIND) || daemon->doing_dhcp6 || daemon->relay6 || daemon->doing_ra)
-    enumerate_interfaces(0);
-  
-  if (option_bool(OPT_CLEVERBIND))
-    create_bound_listeners(0);
-  
-#ifdef HAVE_DHCP6
-  if (daemon->doing_dhcp6 || daemon->relay6 || daemon->doing_ra)
-    join_multicast(0);
-  
-  if (daemon->doing_dhcp6 || daemon->doing_ra)
-    dhcp_construct_contexts(now);
-  
-  if (daemon->doing_dhcp6)
-    lease_find_interfaces(now);
-#endif
-}
-
-
 #endif
 
       

src/network.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -16,6 +16,10 @@
 
 #include "dnsmasq.h"
 
+#ifndef IN6_IS_ADDR_ULA
+#define IN6_IS_ADDR_ULA(a) ((((__const uint32_t *) (a))[0] & htonl (0xfe00000)) == htonl (0xfc000000))
+#endif
+
 #ifdef HAVE_LINUX_NETWORK
 
 int indextoname(int fd, int index, char *name)
@@ -155,7 +159,8 @@ int iface_check(int family, struct all_addr *addr, char *name, int *auth)
   for (tmp = daemon->authinterface; tmp; tmp = tmp->next)
     if (tmp->name)
       {
-	if (strcmp(tmp->name, name) == 0)
+	if (strcmp(tmp->name, name) == 0 &&
+	    (tmp->addr.sa.sa_family == 0 || tmp->addr.sa.sa_family == family))
 	  break;
       }
     else if (addr && tmp->addr.sa.sa_family == AF_INET && family == AF_INET &&
@@ -235,7 +240,7 @@ struct iface_param {
 };
 
 static int iface_allowed(struct iface_param *param, int if_index, char *label,
-			 union mysockaddr *addr, struct in_addr netmask, int dad) 
+			 union mysockaddr *addr, struct in_addr netmask, int prefixlen, int dad) 
 {
   struct irec *iface;
   int mtu = 0, loopback;
@@ -247,6 +252,8 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
   struct iname *tmp;
 #endif
 
+  (void)prefixlen;
+
   if (!indextoname(param->fd, if_index, ifr.ifr_name) ||
       ioctl(param->fd, SIOCGIFFLAGS, &ifr) == -1)
     return 0;
@@ -261,19 +268,106 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
   
   if (!label)
     label = ifr.ifr_name;
+ 
+  /* maintain a list of all addresses on all interfaces for --local-service option */
+  if (option_bool(OPT_LOCAL_SERVICE))
+    {
+      struct addrlist *al;
 
+      if (param->spare)
+	{
+	  al = param->spare;
+	  param->spare = al->next;
+	}
+      else
+	al = whine_malloc(sizeof(struct addrlist));
+      
+      if (al)
+	{
+	  al->next = daemon->interface_addrs;
+	  daemon->interface_addrs = al;
+	  al->prefixlen = prefixlen;
+	  
+	  if (addr->sa.sa_family == AF_INET)
+	    {
+	      al->addr.addr.addr4 = addr->in.sin_addr;
+	      al->flags = 0;
+	    }
+#ifdef HAVE_IPV6
+	  else
+	    {
+	      al->addr.addr.addr6 = addr->in6.sin6_addr;
+	      al->flags = ADDRLIST_IPV6;
+	    } 
+#endif
+	}
+    }
   
-  /* Update addresses from interface_names. These are a set independent
-     of the set we're listening on. */  
 #ifdef HAVE_IPV6
   if (addr->sa.sa_family != AF_INET6 || !IN6_IS_ADDR_LINKLOCAL(&addr->in6.sin6_addr))
 #endif
     {
       struct interface_name *int_name;
       struct addrlist *al;
+#ifdef HAVE_AUTH
+      struct auth_zone *zone;
+      struct auth_name_list *name;
 
+      /* Find subnets in auth_zones */
+      for (zone = daemon->auth_zones; zone; zone = zone->next)
+	for (name = zone->interface_names; name; name = name->next)
+	  if (wildcard_match(name->name, label))
+	    {
+	      if (addr->sa.sa_family == AF_INET && (name->flags & AUTH4))
+		{
+		  if (param->spare)
+		    {
+		      al = param->spare;
+		      param->spare = al->next;
+		    }
+		  else
+		    al = whine_malloc(sizeof(struct addrlist));
+		  
+		  if (al)
+		    {
+		      al->next = zone->subnet;
+		      zone->subnet = al;
+		      al->prefixlen = prefixlen;
+		      al->addr.addr.addr4 = addr->in.sin_addr;
+		      al->flags = 0;
+		    }
+		}
+	      
+#ifdef HAVE_IPV6
+	      if (addr->sa.sa_family == AF_INET6 && (name->flags & AUTH6))
+		{
+		  if (param->spare)
+		    {
+		      al = param->spare;
+		      param->spare = al->next;
+		    }
+		  else
+		    al = whine_malloc(sizeof(struct addrlist));
+		  
+		  if (al)
+		    {
+		      al->next = zone->subnet;
+		      zone->subnet = al;
+		      al->prefixlen = prefixlen;
+		      al->addr.addr.addr6 = addr->in6.sin6_addr;
+		      al->flags = ADDRLIST_IPV6;
+		    }
+		} 
+#endif
+	      
+	    }
+#endif
+       
+      /* Update addresses from interface_names. These are a set independent
+	 of the set we're listening on. */  
       for (int_name = daemon->int_names; int_name; int_name = int_name->next)
-	if (strncmp(label, int_name->intr, IF_NAMESIZE) == 0)
+	if (strncmp(label, int_name->intr, IF_NAMESIZE) == 0 && 
+	    (addr->sa.sa_family == int_name->family || int_name->family == 0))
 	  {
 	    if (param->spare)
 	      {
@@ -285,18 +379,19 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
 	    
 	    if (al)
 	      {
+		al->next = int_name->addr;
+		int_name->addr = al;
+		
 		if (addr->sa.sa_family == AF_INET)
 		  {
 		    al->addr.addr.addr4 = addr->in.sin_addr;
-		    al->next = int_name->addr4;
-		    int_name->addr4 = al;
+		    al->flags = 0;
 		  }
 #ifdef HAVE_IPV6
 		else
 		 {
 		    al->addr.addr.addr6 = addr->in6.sin6_addr;
-		    al->next = int_name->addr6;
-		    int_name->addr6 = al;
+		    al->flags = ADDRLIST_IPV6;
 		 } 
 #endif
 	      }
@@ -309,6 +404,7 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
     if (sockaddr_isequal(&iface->addr, addr))
       {
 	iface->dad = dad;
+	iface->found = 1; /* for garbage collection */
 	return 1;
       }
 
@@ -383,7 +479,8 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
       iface->dns_auth = auth_dns;
       iface->mtu = mtu;
       iface->dad = dad;
-      iface->done = iface->multicast_done = 0;
+      iface->found = 1;
+      iface->done = iface->multicast_done = iface->warned = 0;
       iface->index = if_index;
       if ((iface->name = whine_malloc(strlen(ifr.ifr_name)+1)))
 	{
@@ -409,7 +506,6 @@ static int iface_allowed_v6(struct in6_addr *local, int prefix,
   struct in_addr netmask; /* dummy */
   netmask.s_addr = 0;
 
-  (void)prefix; /* warning */
   (void)scope; /* warning */
   (void)preferred;
   (void)valid;
@@ -421,9 +517,13 @@ static int iface_allowed_v6(struct in6_addr *local, int prefix,
   addr.in6.sin6_family = AF_INET6;
   addr.in6.sin6_addr = *local;
   addr.in6.sin6_port = htons(daemon->port);
-  addr.in6.sin6_scope_id = if_index;
+  /* FreeBSD insists this is zero for non-linklocal addresses */
+  if (IN6_IS_ADDR_LINKLOCAL(local))
+    addr.in6.sin6_scope_id = if_index;
+  else
+    addr.in6.sin6_scope_id = 0;
   
-  return iface_allowed((struct iface_param *)vparam, if_index, NULL, &addr, netmask, !!(flags & IFACE_TENTATIVE));
+  return iface_allowed((struct iface_param *)vparam, if_index, NULL, &addr, netmask, prefix, !!(flags & IFACE_TENTATIVE));
 }
 #endif
 
@@ -431,6 +531,7 @@ static int iface_allowed_v4(struct in_addr local, int if_index, char *label,
 			    struct in_addr netmask, struct in_addr broadcast, void *vparam)
 {
   union mysockaddr addr;
+  int prefix, bit;
 
   memset(&addr, 0, sizeof(addr));
 #ifdef HAVE_SOCKADDR_SA_LEN
@@ -441,7 +542,10 @@ static int iface_allowed_v4(struct in_addr local, int if_index, char *label,
   addr.in.sin_addr = local;
   addr.in.sin_port = htons(daemon->port);
 
-  return iface_allowed((struct iface_param *)vparam, if_index, label, &addr, netmask, 0);
+  /* determine prefix length from netmask */
+  for (prefix = 32, bit = 1; (bit & ntohl(netmask.s_addr)) == 0 && prefix != 0; bit = bit << 1, prefix--);
+
+  return iface_allowed((struct iface_param *)vparam, if_index, label, &addr, netmask, prefix, 0);
 }
    
 int enumerate_interfaces(int reset)
@@ -452,7 +556,11 @@ int enumerate_interfaces(int reset)
   int errsave, ret = 1;
   struct addrlist *addr, *tmp;
   struct interface_name *intname;
-  
+  struct irec *iface;
+#ifdef HAVE_AUTH
+  struct auth_zone *zone;
+#endif
+
   /* Do this max once per select cycle  - also inhibits netlink socket use
    in TCP child processes. */
 
@@ -473,30 +581,54 @@ int enumerate_interfaces(int reset)
   if ((param.fd = socket(PF_INET, SOCK_DGRAM, 0)) == -1)
     return 0;
  
+  /* Mark interfaces for garbage collection */
+  for (iface = daemon->interfaces; iface; iface = iface->next) 
+    iface->found = 0;
+
   /* remove addresses stored against interface_names */
   for (intname = daemon->int_names; intname; intname = intname->next)
     {
-      for (addr = intname->addr4; addr; addr = tmp)
+      for (addr = intname->addr; addr; addr = tmp)
 	{
 	  tmp = addr->next;
 	  addr->next = spare;
 	  spare = addr;
 	}
       
-      intname->addr4 = NULL;
-
-#ifdef HAVE_IPV6
-      for (addr = intname->addr6; addr; addr = tmp)
-	{
-	  tmp = addr->next;
-	  addr->next = spare;
-	  spare = addr;
-	} 
-      
-      intname->addr6 = NULL;
-#endif
+      intname->addr = NULL;
     }
+
+  /* Remove list of addresses of local interfaces */
+  for (addr = daemon->interface_addrs; addr; addr = tmp)
+    {
+      tmp = addr->next;
+      addr->next = spare;
+      spare = addr;
+    }
+  daemon->interface_addrs = NULL;
   
+#ifdef HAVE_AUTH
+  /* remove addresses stored against auth_zone subnets, but not 
+   ones configured as address literals */
+  for (zone = daemon->auth_zones; zone; zone = zone->next)
+    if (zone->interface_names)
+      {
+	struct addrlist **up;
+	for (up = &zone->subnet, addr = zone->subnet; addr; addr = tmp)
+	  {
+	    tmp = addr->next;
+	    if (addr->flags & ADDRLIST_LITERAL)
+	      up = &addr->next;
+	    else
+	      {
+		*up = addr->next;
+		addr->next = spare;
+		spare = addr;
+	      }
+	  }
+      }
+#endif
+
   param.spare = spare;
   
 #ifdef HAVE_IPV6
@@ -508,11 +640,47 @@ int enumerate_interfaces(int reset)
  
   errsave = errno;
   close(param.fd);
+  
+  if (option_bool(OPT_CLEVERBIND))
+    { 
+      /* Garbage-collect listeners listening on addresses that no longer exist.
+	 Does nothing when not binding interfaces or for listeners on localhost, 
+	 since the ->iface field is NULL. Note that this needs the protections
+	 against re-entrancy, hence it's here.  It also means there's a possibility,
+	 in OPT_CLEVERBIND mode, that at listener will just disappear after
+	 a call to enumerate_interfaces, this is checked OK on all calls. */
+      struct listener *l, *tmp, **up;
+      
+      for (up = &daemon->listeners, l = daemon->listeners; l; l = tmp)
+	{
+	  tmp = l->next;
+	  
+	  if (!l->iface || l->iface->found)
+	    up = &l->next;
+	  else
+	    {
+	      *up = l->next;
+	      
+	      /* In case it ever returns */
+	      l->iface->done = 0;
+	      
+	      if (l->fd != -1)
+		close(l->fd);
+	      if (l->tcpfd != -1)
+		close(l->tcpfd);
+	      if (l->tftpfd != -1)
+		close(l->tftpfd);
+	      
+	      free(l);
+	    }
+	}
+    }
+  
   errno = errsave;
-
+  
   spare = param.spare;
   active = 0;
-
+  
   return ret;
 }
 
@@ -535,7 +703,7 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
   
   if ((fd = socket(family, type, 0)) == -1)
     {
-      int port;
+      int port, errsav;
       char *s;
 
       /* No error if the kernel just doesn't support this IP flavour */
@@ -545,6 +713,7 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
 	return -1;
       
     err:
+      errsav = errno;
       port = prettyprint_addr(addr, daemon->addrbuff);
       if (!option_bool(OPT_NOWILD) && !option_bool(OPT_CLEVERBIND))
 	sprintf(daemon->addrbuff, "port %d", port);
@@ -552,7 +721,9 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
       
       if (fd != -1)
 	close (fd);
-      
+	
+      errno = errsav;
+
       if (dienow)
 	{
 	  /* failure to bind addresses given by --listen-address at this point
@@ -582,9 +753,9 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
       if (listen(fd, 5) == -1)
 	goto err;
     }
-  else if (!option_bool(OPT_NOWILD))
+  else if (family == AF_INET)
     {
-      if (family == AF_INET)
+      if (!option_bool(OPT_NOWILD))
 	{
 #if defined(HAVE_LINUX_NETWORK) 
 	  if (setsockopt(fd, IPPROTO_IP, IP_PKTINFO, &opt, sizeof(opt)) == -1)
@@ -595,11 +766,11 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
 	    goto err;
 #endif
 	}
-#ifdef HAVE_IPV6
-      else if (!set_ipv6pktinfo(fd))
-	goto err;
-#endif
     }
+#ifdef HAVE_IPV6
+  else if (!set_ipv6pktinfo(fd))
+    goto err;
+#endif
   
   return fd;
 }
@@ -747,7 +918,8 @@ static struct listener *create_listeners(union mysockaddr *addr, int do_tftp, in
       l->family = addr->sa.sa_family;
       l->fd = fd;
       l->tcpfd = tcpfd;
-      l->tftpfd = tftpfd;
+      l->tftpfd = tftpfd;	
+      l->iface = NULL;
     }
 
   return l;
@@ -794,7 +966,7 @@ void create_bound_listeners(int dienow)
   struct iname *if_tmp;
 
   for (iface = daemon->interfaces; iface; iface = iface->next)
-    if (!iface->done && !iface->dad && 
+    if (!iface->done && !iface->dad && iface->found &&
 	(new = create_listeners(&iface->addr, iface->tftp_ok, dienow)))
       {
 	new->iface = iface;
@@ -818,12 +990,58 @@ void create_bound_listeners(int dienow)
     if (!if_tmp->used && 
 	(new = create_listeners(&if_tmp->addr, !!option_bool(OPT_TFTP), dienow)))
       {
-	new->iface = NULL;
 	new->next = daemon->listeners;
 	daemon->listeners = new;
       }
 }
 
+/* In --bind-interfaces, the only access control is the addresses we're listening on. 
+   There's nothing to avoid a query to the address of an internal interface arriving via
+   an external interface where we don't want to accept queries, except that in the usual 
+   case the addresses of internal interfaces are RFC1918. When bind-interfaces in use, 
+   and we listen on an address that looks like it's probably globally routeable, shout.
+
+   The fix is to use --bind-dynamic, which actually checks the arrival interface too.
+   Tough if your platform doesn't support this.
+
+   Note that checking the arrival interface is supported in the standard IPv6 API and
+   always done, so we don't warn about any IPv6 addresses here.
+*/
+
+void warn_bound_listeners(void)
+{
+  struct irec *iface; 	
+  int advice = 0;
+
+  for (iface = daemon->interfaces; iface; iface = iface->next)
+    if (!iface->dns_auth)
+      {
+	if (iface->addr.sa.sa_family == AF_INET)
+	  {
+	    if (!private_net(iface->addr.in.sin_addr, 1))
+	      {
+		inet_ntop(AF_INET, &iface->addr.in.sin_addr, daemon->addrbuff, ADDRSTRLEN);
+		iface->warned = advice = 1;
+		my_syslog(LOG_WARNING, 
+			  _("LOUD WARNING: listening on %s may accept requests via interfaces other than %s"),
+			  daemon->addrbuff, iface->name);
+	      }
+	  }
+      }
+  
+  if (advice)
+    my_syslog(LOG_WARNING, _("LOUD WARNING: use --bind-dynamic rather than --bind-interfaces to avoid DNS amplification attacks via these interface(s)")); 
+}
+
+void warn_int_names(void)
+{
+  struct interface_name *intname;
+ 
+  for (intname = daemon->int_names; intname; intname = intname->next)
+    if (!intname->addr)
+      my_syslog(LOG_WARNING, _("warning: no addresses found for interface %s"), intname->intr);
+}
+ 
 int is_dad_listeners(void)
 {
   struct irec *iface;
@@ -1078,87 +1296,187 @@ void pre_allocate_sfds(void)
       }  
 }
 
+void mark_servers(int flag)
+{
+  struct server *serv;
+
+  /* mark everything with argument flag */
+  for (serv = daemon->servers; serv; serv = serv->next)
+    if (serv->flags & flag)
+      serv->flags |= SERV_MARK;
+}
+
+void cleanup_servers(void)
+{
+  struct server *serv, *tmp, **up;
+
+  /* unlink and free anything still marked. */
+  for (serv = daemon->servers, up = &daemon->servers; serv; serv = tmp) 
+    {
+      tmp = serv->next;
+      if (serv->flags & SERV_MARK)
+       {
+         server_gone(serv);
+         *up = serv->next;
+         if (serv->domain)
+	   free(serv->domain);
+	 free(serv);
+       }
+      else 
+       up = &serv->next;
+    }
+}
+
+void add_update_server(int flags,
+		       union mysockaddr *addr,
+		       union mysockaddr *source_addr,
+		       const char *interface,
+		       const char *domain)
+{
+  struct server *serv, *next = NULL;
+  char *domain_str = NULL;
+  
+  /* See if there is a suitable candidate, and unmark */
+  for (serv = daemon->servers; serv; serv = serv->next)
+    if (serv->flags & SERV_MARK)
+      {
+	if (domain)
+	  {
+	    if (!(serv->flags & SERV_HAS_DOMAIN) || !hostname_isequal(domain, serv->domain))
+	      continue;
+	  }
+	else
+	  {
+	    if (serv->flags & SERV_HAS_DOMAIN)
+	      continue;
+	  }
+	
+        break;
+      }
+
+  if (serv)
+    {
+      domain_str = serv->domain;
+      next = serv->next;
+    }
+  else if ((serv = whine_malloc(sizeof (struct server))))
+    {
+      /* Not found, create a new one. */
+      if (domain && !(domain_str = whine_malloc(strlen(domain)+1)))
+	{
+	  free(serv);
+          serv = NULL;
+        }
+      else
+        {
+	  struct server *s;
+	  /* Add to the end of the chain, for order */
+	  if (!daemon->servers)
+	    daemon->servers = serv;
+	  else
+	    {
+	      for (s = daemon->servers; s->next; s = s->next);
+	      s->next = serv;
+	    }
+	  if (domain)
+	    strcpy(domain_str, domain);
+	}
+    }
+  
+  if (serv)
+    {
+      memset(serv, 0, sizeof(struct server));
+      serv->flags = flags;
+      serv->domain = domain_str;
+      serv->next = next;
+      serv->queries = serv->failed_queries = 0;
+      
+      if (domain)
+	serv->flags |= SERV_HAS_DOMAIN;
+      
+      if (interface)
+	strcpy(serv->interface, interface);      
+      if (addr)
+	serv->addr = *addr;
+      if (source_addr)
+	serv->source_addr = *source_addr;
+    }
+}
 
 void check_servers(void)
 {
   struct irec *iface;
-  struct server *new, *tmp, *ret = NULL;
+  struct server *serv;
   int port = 0;
 
   /* interface may be new since startup */
   if (!option_bool(OPT_NOWILD))
     enumerate_interfaces(0);
   
-  for (new = daemon->servers; new; new = tmp)
+  for (serv = daemon->servers; serv; serv = serv->next)
     {
-      tmp = new->next;
-      
-      if (!(new->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)))
 	{
-	  port = prettyprint_addr(&new->addr, daemon->namebuff);
+	  port = prettyprint_addr(&serv->addr, daemon->namebuff);
 
 	  /* 0.0.0.0 is nothing, the stack treats it like 127.0.0.1 */
-	  if (new->addr.sa.sa_family == AF_INET &&
-	      new->addr.in.sin_addr.s_addr == 0)
+	  if (serv->addr.sa.sa_family == AF_INET &&
+	      serv->addr.in.sin_addr.s_addr == 0)
 	    {
-	      free(new);
+	      serv->flags |= SERV_MARK;
 	      continue;
 	    }
 
 	  for (iface = daemon->interfaces; iface; iface = iface->next)
-	    if (sockaddr_isequal(&new->addr, &iface->addr))
+	    if (sockaddr_isequal(&serv->addr, &iface->addr))
 	      break;
 	  if (iface)
 	    {
 	      my_syslog(LOG_WARNING, _("ignoring nameserver %s - local interface"), daemon->namebuff);
-	      free(new);
+	      serv->flags |= SERV_MARK;
 	      continue;
 	    }
 	  
 	  /* Do we need a socket set? */
-	  if (!new->sfd && 
-	      !(new->sfd = allocate_sfd(&new->source_addr, new->interface)) &&
+	  if (!serv->sfd && 
+	      !(serv->sfd = allocate_sfd(&serv->source_addr, serv->interface)) &&
 	      errno != 0)
 	    {
 	      my_syslog(LOG_WARNING, 
 			_("ignoring nameserver %s - cannot make/bind socket: %s"),
 			daemon->namebuff, strerror(errno));
-	      free(new);
+	      serv->flags |= SERV_MARK;
 	      continue;
 	    }
 	}
       
-      /* reverse order - gets it right. */
-      new->next = ret;
-      ret = new;
-      
-      if (!(new->flags & SERV_NO_REBIND))
+      if (!(serv->flags & SERV_NO_REBIND))
 	{
-	  if (new->flags & (SERV_HAS_DOMAIN | SERV_FOR_NODOTS | SERV_USE_RESOLV))
+	  if (serv->flags & (SERV_HAS_DOMAIN | SERV_FOR_NODOTS | SERV_USE_RESOLV))
 	    {
 	      char *s1, *s2;
-	      if (!(new->flags & SERV_HAS_DOMAIN))
+	      if (!(serv->flags & SERV_HAS_DOMAIN))
 		s1 = _("unqualified"), s2 = _("names");
-	      else if (strlen(new->domain) == 0)
+	      else if (strlen(serv->domain) == 0)
 		s1 = _("default"), s2 = "";
 	      else
-		s1 = _("domain"), s2 = new->domain;
+		s1 = _("domain"), s2 = serv->domain;
 	      
-	      if (new->flags & SERV_NO_ADDR)
+	      if (serv->flags & SERV_NO_ADDR)
 		my_syslog(LOG_INFO, _("using local addresses only for %s %s"), s1, s2);
-	      else if (new->flags & SERV_USE_RESOLV)
+	      else if (serv->flags & SERV_USE_RESOLV)
 		my_syslog(LOG_INFO, _("using standard nameservers for %s %s"), s1, s2);
-	      else if (!(new->flags & SERV_LITERAL_ADDRESS))
+	      else if (!(serv->flags & SERV_LITERAL_ADDRESS))
 		my_syslog(LOG_INFO, _("using nameserver %s#%d for %s %s"), daemon->namebuff, port, s1, s2);
 	    }
-	  else if (new->interface[0] != 0)
-	    my_syslog(LOG_INFO, _("using nameserver %s#%d(via %s)"), daemon->namebuff, port, new->interface); 
+	  else if (serv->interface[0] != 0)
+	    my_syslog(LOG_INFO, _("using nameserver %s#%d(via %s)"), daemon->namebuff, port, serv->interface); 
 	  else
 	    my_syslog(LOG_INFO, _("using nameserver %s#%d"), daemon->namebuff, port); 
 	}
     }
-  
-  daemon->servers = ret;
+
+  cleanup_servers();
 }
 
 /* Return zero if no servers found, in that case we keep polling.
@@ -1167,9 +1485,6 @@ int reload_servers(char *fname)
 {
   FILE *f;
   char *line;
-  struct server *old_servers = NULL;
-  struct server *new_servers = NULL;
-  struct server *serv;
   int gotone = 0;
 
   /* buff happens to be MAXDNAME long... */
@@ -1178,28 +1493,9 @@ int reload_servers(char *fname)
       my_syslog(LOG_ERR, _("failed to read %s: %s"), fname, strerror(errno));
       return 0;
     }
-  
-  /* move old servers to free list - we can reuse the memory 
-     and not risk malloc if there are the same or fewer new servers. 
-     Servers which were specced on the command line go to the new list. */
-  for (serv = daemon->servers; serv;)
-    {
-      struct server *tmp = serv->next;
-      if (serv->flags & SERV_FROM_RESOLV)
-	{
-	  serv->next = old_servers;
-	  old_servers = serv; 
-	  /* forward table rules reference servers, so have to blow them away */
-	  server_gone(serv);
-	}
-      else
-	{
-	  serv->next = new_servers;
-	  new_servers = serv;
-	}
-      serv = tmp;
-    }
-  
+   
+  mark_servers(SERV_FROM_RESOLV);
+    
   while ((line = fgets(daemon->namebuff, MAXDNAME, f)))
     {
       union mysockaddr addr, source_addr;
@@ -1258,43 +1554,42 @@ int reload_servers(char *fname)
 	continue;
 #endif 
 
-      if (old_servers)
-	{
-	  serv = old_servers;
-	  old_servers = old_servers->next;
-	}
-      else if (!(serv = whine_malloc(sizeof (struct server))))
-	continue;
-      
-      /* this list is reverse ordered: 
-	 it gets reversed again in check_servers */
-      serv->next = new_servers;
-      new_servers = serv;
-      serv->addr = addr;
-      serv->source_addr = source_addr;
-      serv->domain = NULL;
-      serv->interface[0] = 0;
-      serv->sfd = NULL;
-      serv->flags = SERV_FROM_RESOLV;
-      serv->queries = serv->failed_queries = 0;
+      add_update_server(SERV_FROM_RESOLV, &addr, &source_addr, NULL, NULL);
       gotone = 1;
     }
   
-  /* Free any memory not used. */
-  while (old_servers)
-    {
-      struct server *tmp = old_servers->next;
-      free(old_servers);
-      old_servers = tmp;
-    }
-
-  daemon->servers = new_servers;
   fclose(f);
+  cleanup_servers();
 
   return gotone;
 }
 
-
+#if defined(HAVE_LINUX_NETWORK) || defined(HAVE_BSD_NETWORK)
+/* Called when addresses are added or deleted from an interface */
+void newaddress(time_t now)
+{
+  (void)now;
+  
+  if (option_bool(OPT_CLEVERBIND) || option_bool(OPT_LOCAL_SERVICE) ||
+      daemon->doing_dhcp6 || daemon->relay6 || daemon->doing_ra)
+    enumerate_interfaces(0);
+  
+  if (option_bool(OPT_CLEVERBIND))
+    create_bound_listeners(0);
+  
+#ifdef HAVE_DHCP6
+  if (daemon->doing_dhcp6 || daemon->relay6 || daemon->doing_ra)
+    join_multicast(0);
+  
+  if (daemon->doing_dhcp6 || daemon->doing_ra)
+    dhcp_construct_contexts(now);
+  
+  if (daemon->doing_dhcp6)
+    lease_find_interfaces(now);
+#endif
+}
+
+#endif
 
 
 

src/option.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -64,76 +64,88 @@ struct myoption {
 #define OPTSTRING "951yZDNLERKzowefnbvhdkqr:m:p:c:l:s:i:t:u:g:a:x:S:C:A:T:H:Q:I:B:F:G:O:M:X:V:U:j:P:J:W:Y:2:4:6:7:8:0:3:"
 
 /* options which don't have a one-char version */
-#define LOPT_RELOAD    256
-#define LOPT_NO_NAMES  257
-#define LOPT_TFTP      258
-#define LOPT_SECURE    259
-#define LOPT_PREFIX    260
-#define LOPT_PTR       261
-#define LOPT_BRIDGE    262
-#define LOPT_TFTP_MAX  263
-#define LOPT_FORCE     264
-#define LOPT_NOBLOCK   265
-#define LOPT_LOG_OPTS  266
-#define LOPT_MAX_LOGS  267
-#define LOPT_CIRCUIT   268
-#define LOPT_REMOTE    269
-#define LOPT_SUBSCR    270
-#define LOPT_INTNAME   271
-#define LOPT_BANK      272
-#define LOPT_DHCP_HOST 273
-#define LOPT_APREF     274
-#define LOPT_OVERRIDE  275
-#define LOPT_TFTPPORTS 276
-#define LOPT_REBIND    277
-#define LOPT_NOLAST    278
-#define LOPT_OPTS      279
-#define LOPT_DHCP_OPTS 280
-#define LOPT_MATCH     281
-#define LOPT_BROADCAST 282
-#define LOPT_NEGTTL    283
-#define LOPT_ALTPORT   284
-#define LOPT_SCRIPTUSR 285
-#define LOPT_LOCAL     286
-#define LOPT_NAPTR     287
-#define LOPT_MINPORT   288
-#define LOPT_DHCP_FQDN 289
-#define LOPT_CNAME     290
-#define LOPT_PXE_PROMT 291
-#define LOPT_PXE_SERV  292
-#define LOPT_TEST      293
-#define LOPT_TAG_IF    294
-#define LOPT_PROXY     295
-#define LOPT_GEN_NAMES 296
-#define LOPT_MAXTTL    297
-#define LOPT_NO_REBIND 298
-#define LOPT_LOC_REBND 299
-#define LOPT_ADD_MAC   300
-#define LOPT_DNSSEC    301
-#define LOPT_INCR_ADDR 302
-#define LOPT_CONNTRACK 303
-#define LOPT_FQDN      304
-#define LOPT_LUASCRIPT 305
-#define LOPT_RA        306
-#define LOPT_DUID      307
-#define LOPT_HOST_REC  308
-#define LOPT_TFTP_LC   309
-#define LOPT_RR        310
-#define LOPT_CLVERBIND 311
-#define LOPT_MAXCTTL   312
-#define LOPT_AUTHZONE  313
-#define LOPT_AUTHSERV  314
-#define LOPT_AUTHTTL   315
-#define LOPT_AUTHSOA   316
-#define LOPT_AUTHSFS   317
-#define LOPT_AUTHPEER  318
-#define LOPT_IPSET     319
-#define LOPT_SYNTH     320
+#define LOPT_RELOAD        256
+#define LOPT_NO_NAMES      257
+#define LOPT_TFTP          258
+#define LOPT_SECURE        259
+#define LOPT_PREFIX        260
+#define LOPT_PTR           261
+#define LOPT_BRIDGE        262
+#define LOPT_TFTP_MAX      263
+#define LOPT_FORCE         264
+#define LOPT_NOBLOCK       265
+#define LOPT_LOG_OPTS      266
+#define LOPT_MAX_LOGS      267
+#define LOPT_CIRCUIT       268
+#define LOPT_REMOTE        269
+#define LOPT_SUBSCR        270
+#define LOPT_INTNAME       271
+#define LOPT_BANK          272
+#define LOPT_DHCP_HOST     273
+#define LOPT_APREF         274
+#define LOPT_OVERRIDE      275
+#define LOPT_TFTPPORTS     276
+#define LOPT_REBIND        277
+#define LOPT_NOLAST        278
+#define LOPT_OPTS          279
+#define LOPT_DHCP_OPTS     280
+#define LOPT_MATCH         281
+#define LOPT_BROADCAST     282
+#define LOPT_NEGTTL        283
+#define LOPT_ALTPORT       284
+#define LOPT_SCRIPTUSR     285
+#define LOPT_LOCAL         286
+#define LOPT_NAPTR         287
+#define LOPT_MINPORT       288
+#define LOPT_DHCP_FQDN     289
+#define LOPT_CNAME         290
+#define LOPT_PXE_PROMT     291
+#define LOPT_PXE_SERV      292
+#define LOPT_TEST          293
+#define LOPT_TAG_IF        294
+#define LOPT_PROXY         295
+#define LOPT_GEN_NAMES     296
+#define LOPT_MAXTTL        297
+#define LOPT_NO_REBIND     298
+#define LOPT_LOC_REBND     299
+#define LOPT_ADD_MAC       300
+#define LOPT_DNSSEC        301
+#define LOPT_INCR_ADDR     302
+#define LOPT_CONNTRACK     303
+#define LOPT_FQDN          304
+#define LOPT_LUASCRIPT     305
+#define LOPT_RA            306
+#define LOPT_DUID          307
+#define LOPT_HOST_REC      308
+#define LOPT_TFTP_LC       309
+#define LOPT_RR            310
+#define LOPT_CLVERBIND     311
+#define LOPT_MAXCTTL       312
+#define LOPT_AUTHZONE      313
+#define LOPT_AUTHSERV      314
+#define LOPT_AUTHTTL       315
+#define LOPT_AUTHSOA       316
+#define LOPT_AUTHSFS       317
+#define LOPT_AUTHPEER      318
+#define LOPT_IPSET         319
+#define LOPT_SYNTH         320
 #ifdef OPTION6_PREFIX_CLASS 
-#define LOPT_PREF_CLSS 321
+#define LOPT_PREF_CLSS     321
 #endif
-#define LOPT_FAST_RA   322
-#define LOPT_RELAY     323
+#define LOPT_RELAY         323
+#define LOPT_RA_PARAM      324
+#define LOPT_ADD_SBNET     325
+#define LOPT_QUIET_DHCP    326
+#define LOPT_QUIET_DHCP6   327
+#define LOPT_QUIET_RA      328
+#define LOPT_SEC_VALID     329
+#define LOPT_TRUST_ANCHOR  330
+#define LOPT_DNSSEC_DEBUG  331
+#define LOPT_REV_SERV      332
+#define LOPT_SERVERS_FILE  333
+#define LOPT_DNSSEC_CHECK  334
+#define LOPT_LOCAL_SERVICE 335
+#define LOPT_DNSSEC_TIME   336
 
 #ifdef HAVE_GETOPT_LONG
 static const struct option opts[] =  
@@ -150,6 +162,7 @@ static const struct myoption opts[] =
     { "user", 2, 0, 'u' },
     { "group", 2, 0, 'g' },
     { "resolv-file", 2, 0, 'r' },
+    { "servers-file", 1, 0, LOPT_SERVERS_FILE },
     { "mx-host", 1, 0, 'm' },
     { "mx-target", 1, 0, 't' },
     { "cache-size", 2, 0, 'c' },
@@ -164,6 +177,7 @@ static const struct myoption opts[] =
     { "domain-suffix", 1, 0, 's' },
     { "interface", 1, 0, 'i' },
     { "listen-address", 1, 0, 'a' },
+    { "local-service", 0, 0, LOPT_LOCAL_SERVICE },
     { "bogus-priv", 0, 0, 'b' },
     { "bogus-nxdomain", 1, 0, 'B' },
     { "selfmx", 0, 0, 'e' },
@@ -171,6 +185,7 @@ static const struct myoption opts[] =
     { "pid-file", 2, 0, 'x' },
     { "strict-order", 0, 0, 'o' },
     { "server", 1, 0, 'S' },
+    { "rev-server", 1, 0, LOPT_REV_SERV },
     { "local", 1, 0, LOPT_LOCAL },
     { "address", 1, 0, 'A' },
     { "conf-file", 2, 0, 'C' },
@@ -251,6 +266,7 @@ static const struct myoption opts[] =
     { "dhcp-generate-names", 2, 0, LOPT_GEN_NAMES },
     { "rebind-localhost-ok", 0, 0,  LOPT_LOC_REBND },
     { "add-mac", 0, 0, LOPT_ADD_MAC },
+    { "add-subnet", 2, 0, LOPT_ADD_SBNET },
     { "proxy-dnssec", 0, 0, LOPT_DNSSEC },
     { "dhcp-sequential-ip", 0, 0,  LOPT_INCR_ADDR },
     { "conntrack", 0, 0, LOPT_CONNTRACK },
@@ -268,11 +284,19 @@ static const struct myoption opts[] =
     { "auth-peer", 1, 0, LOPT_AUTHPEER }, 
     { "ipset", 1, 0, LOPT_IPSET },
     { "synth-domain", 1, 0, LOPT_SYNTH },
+    { "dnssec", 0, 0, LOPT_SEC_VALID },
+    { "trust-anchor", 1, 0, LOPT_TRUST_ANCHOR },
+    { "dnssec-debug", 0, 0, LOPT_DNSSEC_DEBUG },
+    { "dnssec-check-unsigned", 0, 0, LOPT_DNSSEC_CHECK },
+    { "dnssec-no-timecheck", 0, 0, LOPT_DNSSEC_TIME },
 #ifdef OPTION6_PREFIX_CLASS 
     { "dhcp-prefix-class", 1, 0, LOPT_PREF_CLSS },
 #endif
-    { "force-fast-ra", 0, 0, LOPT_FAST_RA },
     { "dhcp-relay", 1, 0, LOPT_RELAY },
+    { "ra-param", 1, 0, LOPT_RA_PARAM },
+    { "quiet-dhcp", 0, 0, LOPT_QUIET_DHCP },
+    { "quiet-dhcp6", 0, 0, LOPT_QUIET_DHCP6 },
+    { "quiet-ra", 0, 0, LOPT_QUIET_RA },
     { NULL, 0, 0, 0 }
   };
 
@@ -333,7 +357,9 @@ static struct {
   { 'Q', ARG_ONE, "<integer>", gettext_noop("Force the originating port for upstream DNS queries."), NULL },
   { 'R', OPT_NO_RESOLV, NULL, gettext_noop("Do NOT read resolv.conf."), NULL },
   { 'r', ARG_DUP, "<path>", gettext_noop("Specify path to resolv.conf (defaults to %s)."), RESOLVFILE }, 
+  { LOPT_SERVERS_FILE, ARG_ONE, "<path>", gettext_noop("Specify path to file with server= options"), NULL },
   { 'S', ARG_DUP, "/<domain>/<ipaddr>", gettext_noop("Specify address(es) of upstream servers with optional domains."), NULL },
+  { LOPT_REV_SERV, ARG_DUP, "<addr>/<prefix>,<ipaddr>", gettext_noop("Specify address of upstream servers for reverse address queries"), NULL },
   { LOPT_LOCAL, ARG_DUP, "/<domain>/", gettext_noop("Never forward queries to specified domains."), NULL },
   { 's', ARG_DUP, "<domain>[,<range>]", gettext_noop("Specify the domain to be assigned in DHCP leases."), NULL },
   { 't', ARG_ONE, "<host_name>", gettext_noop("Specify default target in an MX record."), NULL },
@@ -397,12 +423,12 @@ static struct {
   { LOPT_PXE_SERV, ARG_DUP, "<service>", gettext_noop("Boot service for PXE menu."), NULL },
   { LOPT_TEST, 0, NULL, gettext_noop("Check configuration syntax."), NULL },
   { LOPT_ADD_MAC, OPT_ADD_MAC, NULL, gettext_noop("Add requestor's MAC address to forwarded DNS queries."), NULL },
-  { LOPT_DNSSEC, OPT_DNSSEC, NULL, gettext_noop("Proxy DNSSEC validation results from upstream nameservers."), NULL },
+  { LOPT_ADD_SBNET, ARG_ONE, "<v4 pref>[,<v6 pref>]", gettext_noop("Add requestor's IP subnet to forwarded DNS queries."), NULL },
+  { LOPT_DNSSEC, OPT_DNSSEC_PROXY, NULL, gettext_noop("Proxy DNSSEC validation results from upstream nameservers."), NULL },
   { LOPT_INCR_ADDR, OPT_CONSEC_ADDR, NULL, gettext_noop("Attempt to allocate sequential IP addresses to DHCP clients."), NULL },
   { LOPT_CONNTRACK, OPT_CONNTRACK, NULL, gettext_noop("Copy connection-track mark from queries to upstream connections."), NULL },
   { LOPT_FQDN, OPT_FQDN_UPDATE, NULL, gettext_noop("Allow DHCP clients to do their own DDNS updates."), NULL },
   { LOPT_RA, OPT_RA, NULL, gettext_noop("Send router-advertisements for interfaces doing DHCPv6"), NULL },
-  { LOPT_FAST_RA, OPT_FAST_RA, NULL, gettext_noop("Always send frequent router-advertisements"), NULL },
   { LOPT_DUID, ARG_ONE, "<enterprise>,<duid>", gettext_noop("Specify DUID_EN-type DHCPv6 server DUID"), NULL },
   { LOPT_HOST_REC, ARG_DUP, "<name>,<address>", gettext_noop("Specify host (A/AAAA and PTR) records"), NULL },
   { LOPT_RR, ARG_DUP, "<name>,<RR-number>,[<data>]", gettext_noop("Specify arbitrary DNS resource record"), NULL },
@@ -414,10 +440,20 @@ static struct {
   { LOPT_AUTHSFS, ARG_DUP, "<NS>[,<NS>...]", gettext_noop("Secondary authoritative nameservers for forward domains"), NULL },
   { LOPT_AUTHPEER, ARG_DUP, "<ipaddr>[,<ipaddr>...]", gettext_noop("Peers which are allowed to do zone transfer"), NULL },
   { LOPT_IPSET, ARG_DUP, "/<domain>/<ipset>[,<ipset>...]", gettext_noop("Specify ipsets to which matching domains should be added"), NULL },
-  { LOPT_SYNTH, ARG_DUP, "<domain>,<range>,[<prefix>]", gettext_noop("Specify a domain and address range for sythesised names"), NULL },
+  { LOPT_SYNTH, ARG_DUP, "<domain>,<range>,[<prefix>]", gettext_noop("Specify a domain and address range for synthesised names"), NULL },
+  { LOPT_SEC_VALID, OPT_DNSSEC_VALID, NULL, gettext_noop("Activate DNSSEC validation"), NULL },
+  { LOPT_TRUST_ANCHOR, ARG_DUP, "<domain>,[<class>],...", gettext_noop("Specify trust anchor key digest."), NULL },
+  { LOPT_DNSSEC_DEBUG, OPT_DNSSEC_DEBUG, NULL, gettext_noop("Disable upstream checking for DNSSEC debugging."), NULL },
+  { LOPT_DNSSEC_CHECK, OPT_DNSSEC_NO_SIGN, NULL, gettext_noop("Ensure answers without DNSSEC are in unsigned zones."), NULL },
+  { LOPT_DNSSEC_TIME, OPT_DNSSEC_TIME, NULL, gettext_noop("Don't check DNSSEC signature timestamps until first cache-reload"), NULL },
 #ifdef OPTION6_PREFIX_CLASS 
   { LOPT_PREF_CLSS, ARG_DUP, "set:tag,<class>", gettext_noop("Specify DHCPv6 prefix class"), NULL },
 #endif
+  { LOPT_RA_PARAM, ARG_DUP, "<interface>,[high,|low,]<interval>[,<lifetime>]", gettext_noop("Set priority, resend-interval and router-lifetime"), NULL },
+  { LOPT_QUIET_DHCP, OPT_QUIET_DHCP, NULL, gettext_noop("Do not log routine DHCP."), NULL },
+  { LOPT_QUIET_DHCP6, OPT_QUIET_DHCP6, NULL, gettext_noop("Do not log routine DHCPv6."), NULL },
+  { LOPT_QUIET_RA, OPT_QUIET_RA, NULL, gettext_noop("Do not log RA."), NULL },
+  { LOPT_LOCAL_SERVICE, OPT_LOCAL_SERVICE, NULL, gettext_noop("Accept queries only from directly-connected networks"), NULL },
   { 0, 0, NULL, NULL, NULL }
 }; 
 
@@ -569,20 +605,37 @@ static int atoi_check16(char *a, int *res)
 
   return 1;
 }
-	
-static void add_txt(char *name, char *txt)
+
+#ifdef HAVE_DNSSEC
+static int atoi_check8(char *a, int *res)
+{
+  if (!(atoi_check(a, res)) ||
+      *res < 0 ||
+      *res > 0xff)
+    return 0;
+
+  return 1;
+}
+#endif
+	
+static void add_txt(char *name, char *txt, int stat)
 {
-  size_t len = strlen(txt);
   struct txt_record *r = opt_malloc(sizeof(struct txt_record));
+
+  if (txt)
+    {
+      size_t len = strlen(txt);
+      r->txt = opt_malloc(len+1);
+      r->len = len+1;
+      *(r->txt) = len;
+      memcpy((r->txt)+1, txt, len);
+    }
   
+  r->stat = stat;
   r->name = opt_string_alloc(name);
   r->next = daemon->txt;
   daemon->txt = r;
   r->class = C_CHAOS;
-  r->txt = opt_malloc(len+1);
-  r->len = len+1;
-  *(r->txt) = len;
-  memcpy((r->txt)+1, txt, len);
 }
 
 static void do_usage(void)
@@ -653,6 +706,13 @@ char *parse_server(char *arg, union mysockaddr *addr, union mysockaddr *source_a
   char *scope_id;
 #endif
   
+  if (!arg || strlen(arg) == 0)
+    {
+      *flags |= SERV_NO_ADDR;
+      *interface = 0;
+      return NULL;
+    }
+
   if ((source = split_chr(arg, '@')) && /* is there a source. */
       (portno = split_chr(source, '#')) &&
       !atoi_check16(portno, &source_port))
@@ -731,6 +791,54 @@ char *parse_server(char *arg, union mysockaddr *addr, union mysockaddr *source_a
   return NULL;
 }
 
+static struct server *add_rev4(struct in_addr addr, int msize)
+{
+  struct server *serv = opt_malloc(sizeof(struct server));
+  in_addr_t  a = ntohl(addr.s_addr) >> 8;
+  char *p;
+
+  memset(serv, 0, sizeof(struct server));
+  p = serv->domain = opt_malloc(25); /* strlen("xxx.yyy.zzz.in-addr.arpa")+1 */
+  
+  if (msize == 24)
+    p += sprintf(p, "%d.", a & 0xff);
+  a = a >> 8;
+  if (msize != 8)
+    p += sprintf(p, "%d.", a & 0xff);
+  a = a >> 8;
+  p += sprintf(p, "%d.in-addr.arpa", a & 0xff);
+  
+  serv->flags = SERV_HAS_DOMAIN;
+  serv->next = daemon->servers;
+  daemon->servers = serv;
+
+  return serv;
+
+}
+
+static struct server *add_rev6(struct in6_addr *addr, int msize)
+{
+  struct server *serv = opt_malloc(sizeof(struct server));
+  char *p;
+  int i;
+				  
+  memset(serv, 0, sizeof(struct server));
+  p = serv->domain = opt_malloc(73); /* strlen("32*<n.>ip6.arpa")+1 */
+  
+  for (i = msize-1; i >= 0; i -= 4)
+    { 
+      int dig = ((unsigned char *)addr)[i>>3];
+      p += sprintf(p, "%.1x.", (i>>2) & 1 ? dig & 15 : dig >> 4);
+    }
+  p += sprintf(p, "ip6.arpa");
+  
+  serv->flags = SERV_HAS_DOMAIN;
+  serv->next = daemon->servers;
+  daemon->servers = serv;
+  
+  return serv;
+}
+
 #ifdef HAVE_DHCP
 
 static int is_tag_prefix(char *arg)
@@ -1294,7 +1402,7 @@ void reset_option_bool(unsigned int opt)
     daemon->options2 &= ~(1u << (opt - 32));
 }
 
-static int one_opt(int option, char *arg, char *errstr, char *gen_err, int command_line)
+static int one_opt(int option, char *arg, char *errstr, char *gen_err, int command_line, int servers_only)
 {      
   int i;
   char *comma;
@@ -1424,6 +1532,17 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	break;
       }
 
+    case LOPT_ADD_SBNET: /* --add-subnet */
+      set_option_bool(OPT_CLIENT_SUBNET);
+      if (arg)
+	{
+	  comma = split(arg);
+	  if (!atoi_check(arg, &daemon->addr4_netmask) || 
+	      (comma && !atoi_check(comma, &daemon->addr6_netmask)))
+	     ret_err(gen_err);
+	}
+      break;
+
     case '1': /* --enable-dbus */
       set_option_bool(OPT_DBUS);
       if (arg)
@@ -1486,6 +1605,10 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	daemon->resolv_files = list;
 	break;
       }
+
+    case LOPT_SERVERS_FILE:
+      daemon->servers_file = opt_string_alloc(arg);
+      break;
       
     case 'm':  /* --mx-host */
       {
@@ -1549,7 +1672,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
     case 'H': /* --addn-hosts */
       {
 	struct hostsfile *new = opt_malloc(sizeof(struct hostsfile));
-	static int hosts_index = 1;
+	static unsigned int hosts_index = SRC_AH;
 	new->fname = opt_string_alloc(arg);
 	new->index = hosts_index++;
 	new->flags = 0;
@@ -1591,8 +1714,22 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	  new->addr.sa.sa_family = AF_INET6;
 #endif
 	else
-	  new->name = opt_string_alloc(arg);
-	
+	  {
+	    char *fam = split_chr(arg, '/');
+	    new->name = opt_string_alloc(arg);
+	    new->addr.sa.sa_family = 0;
+	    if (fam)
+	      {
+		if (strcmp(fam, "4") == 0)
+		  new->addr.sa.sa_family = AF_INET;
+#ifdef HAVE_IPV6
+		else if (strcmp(fam, "6") == 0)
+		  new->addr.sa.sa_family = AF_INET6;
+#endif
+		else
+		  ret_err(gen_err);
+	      } 
+	  }
 	new->next = daemon->authinterface;
 	daemon->authinterface = new;
 	
@@ -1625,6 +1762,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	new = opt_malloc(sizeof(struct auth_zone));
 	new->domain = opt_string_alloc(arg);
 	new->subnet = NULL;
+	new->interface_names = NULL;
 	new->next = daemon->auth_zones;
 	daemon->auth_zones = new;
 
@@ -1632,10 +1770,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	  {
 	    int prefixlen = 0;
 	    char *prefix;
-	    struct subnet *subnet =  opt_malloc(sizeof(struct subnet));
-	    
-	    subnet->next = new->subnet;
-	    new->subnet = subnet;
+	    struct addrlist *subnet =  NULL;
+	    struct all_addr addr;
 
 	    comma = split(arg);
 	    prefix = split_chr(arg, '/');
@@ -1643,24 +1779,50 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	    if (prefix && !atoi_check(prefix, &prefixlen))
 	      ret_err(gen_err);
 	    
-	    if (inet_pton(AF_INET, arg, &subnet->addr4))
+	    if (inet_pton(AF_INET, arg, &addr.addr.addr4))
 	      {
+		subnet = opt_malloc(sizeof(struct addrlist));
 		subnet->prefixlen = (prefixlen == 0) ? 24 : prefixlen;
-		subnet->is6 = 0;
+		subnet->flags = ADDRLIST_LITERAL;
 	      }
 #ifdef HAVE_IPV6
-	    else if (inet_pton(AF_INET6, arg, &subnet->addr6))
+	    else if (inet_pton(AF_INET6, arg, &addr.addr.addr6))
 	      {
+		subnet = opt_malloc(sizeof(struct addrlist));
 		subnet->prefixlen = (prefixlen == 0) ? 64 : prefixlen;
-		subnet->is6 = 1;
+		subnet->flags = ADDRLIST_LITERAL | ADDRLIST_IPV6;
 	      }
 #endif
-	    else
-	        ret_err(gen_err);
+	    else 
+	      {
+		struct auth_name_list *name =  opt_malloc(sizeof(struct auth_name_list));
+		name->name = opt_string_alloc(arg);
+		name->flags = AUTH4 | AUTH6;
+		name->next = new->interface_names;
+		new->interface_names = name;
+		if (prefix)
+		  {
+		    if (prefixlen == 4)
+		      name->flags &= ~AUTH6;
+#ifdef HAVE_IPV6
+		    else if (prefixlen == 6)
+		      name->flags &= ~AUTH4;
+#endif
+		    else
+		      ret_err(gen_err);
+		  }
+	      }
+	    
+	    if (subnet)
+	      {
+		subnet->addr = addr;
+		subnet->next = new->subnet;
+		new->subnet = subnet;
+	      }
 	  }
 	break;
       }
-
+      
     case  LOPT_AUTHSOA: /* --auth-soa */
       comma = split(arg);
       daemon->soa_sn = (u32)atoi(arg);
@@ -1743,34 +1905,11 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 				ret_err(gen_err);
 			      else
 				{
-				  /* generate the equivalent of
-				     local=/<domain>/
-				     local=/xxx.yyy.zzz.in-addr.arpa/ */
-				  struct server *serv = opt_malloc(sizeof(struct server));
-				  in_addr_t a = ntohl(new->start.s_addr) >> 8;
-				  char *p;
-				  
-				  memset(serv, 0, sizeof(struct server));
-				  serv->domain = d;
-				  serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
-				  serv->next = daemon->servers;
-				  daemon->servers = serv;
-				  
-				  serv = opt_malloc(sizeof(struct server));
-				  memset(serv, 0, sizeof(struct server));
-				  p = serv->domain = opt_malloc(25); /* strlen("xxx.yyy.zzz.in-addr.arpa")+1 */
-				  
-				  if (msize == 24)
-				    p += sprintf(p, "%d.", a & 0xff);
-				  a = a >> 8;
-				  if (msize != 8)
-				    p += sprintf(p, "%d.", a & 0xff);
-				  a = a >> 8;
-				  p += sprintf(p, "%d.in-addr.arpa", a & 0xff);
-				  
-				  serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
-				  serv->next = daemon->servers;
-				  daemon->servers = serv;
+				   /* generate the equivalent of
+				      local=/<domain>/
+				      local=/xxx.yyy.zzz.in-addr.arpa/ */
+				  struct server *serv = add_rev4(new->start, msize);
+				  serv->flags |= SERV_NO_ADDR;
 				}
 			    }
 			}
@@ -1806,29 +1945,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 				  /* generate the equivalent of
 				     local=/<domain>/
 				     local=/xxx.yyy.zzz.ip6.arpa/ */
-				  struct server *serv = opt_malloc(sizeof(struct server));
-				  char *p;
-				  
-				  memset(serv, 0, sizeof(struct server));
-				  serv->domain = d;
-				  serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
-				  serv->next = daemon->servers;
-				  daemon->servers = serv;
-
-				  serv = opt_malloc(sizeof(struct server));
-				  memset(serv, 0, sizeof(struct server));
-				  p = serv->domain = opt_malloc(73); /* strlen("32*<n.>ip6.arpa")+1 */
-				  
-				  for (i = msize-1; i >= 0; i -= 4)
-				    { 
-				      int dig = ((unsigned char *)&new->start6)[i>>3];
-				      p += sprintf(p, "%.1x.", (i>>2) & 1 ? dig & 15 : dig >> 4);
-				    }
-				  p += sprintf(p, "ip6.arpa");
-				  
-				  serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
-				  serv->next = daemon->servers;
-				  daemon->servers = serv;
+				  struct server *serv = add_rev6(&new->start6, msize);
+				  serv->flags |= SERV_NO_ADDR;
 				}
 			    }
 			}
@@ -1836,9 +1954,12 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		      else
 			ret_err(gen_err);
 		    }
-		  else  
+		  else
 		    {
+		      char *prefstr;
 		      arg = split(comma);
+		      prefstr = split(arg);
+
 		      if (inet_pton(AF_INET, comma, &new->start))
 			{
 			  new->is6 = 0;
@@ -1859,6 +1980,13 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 #endif
 		      else 
 			ret_err(gen_err);
+
+		      if (option != 's' && prefstr)
+			{
+			  if (!(new->prefix = canonicalise_opt(prefstr)) ||
+			      strlen(new->prefix) > MAXLABEL - INET_ADDRSTRLEN)
+			    ret_err(_("bad prefix"));
+			}
 		    }
 
 		  new->domain = d;
@@ -2045,6 +2173,9 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	    memset(newlist, 0, sizeof(struct server));
 	  }
 	
+	if (servers_only && option == 'S')
+	  newlist->flags |= SERV_FROM_FILE;
+	
 	if (option == 'A')
 	  {
 	    newlist->flags |= SERV_LITERAL_ADDRESS;
@@ -2089,6 +2220,40 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	break;
       }
 
+    case LOPT_REV_SERV: /* --rev-server */
+      {
+	char *string;
+	int size;
+	struct server *serv;
+	struct in_addr addr4;
+#ifdef HAVE_IPV6
+	struct in6_addr addr6;
+#endif
+ 
+	unhide_metas(arg);
+	if (!arg || !(comma=split(arg)) || !(string = split_chr(arg, '/')) || !atoi_check(string, &size))
+	  ret_err(gen_err);
+
+	if (inet_pton(AF_INET, arg, &addr4))
+	  serv = add_rev4(addr4, size);
+#ifdef HAVE_IPV6
+	else if (inet_pton(AF_INET6, arg, &addr6))
+	  serv = add_rev6(&addr6, size);
+#endif
+	else
+	  ret_err(gen_err);
+ 
+	string = parse_server(comma, &serv->addr, &serv->source_addr, serv->interface, &serv->flags);
+	
+	if (string)
+	  ret_err(string);
+	
+	if (servers_only)
+	  serv->flags |= SERV_FROM_FILE;
+	
+	break;
+      }
+
     case LOPT_IPSET: /* --ipset */
 #ifndef HAVE_IPSET
       ret_err(_("recompile with HAVE_IPSET defined to enable ipset directives"));
@@ -2430,11 +2595,6 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		    new->template_interface = opt_string_alloc(a[leasepos] + 12);
 		    new->flags |= CONTEXT_TEMPLATE;
 		  }
-		else if (strstr(a[leasepos], "constructor-noauth:") == a[leasepos])
-		  {
-		    new->template_interface = opt_string_alloc(a[leasepos] + 19);
-		    new->flags |= CONTEXT_TEMPLATE | CONTEXT_NOAUTH;
-		  }
 		else  
 		  break;
 	      }
@@ -2664,7 +2824,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	  else
 	    {
 	      char *cp, *lastp = NULL, last = 0;
-	      int fac = 1;
+	      int fac = 1, isdig = 0;
 	      
 	      if (strlen(a[j]) > 1)
 		{
@@ -2695,9 +2855,11 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		}
 	      
 	      for (cp = a[j]; *cp; cp++)
-		if (!isdigit((unsigned char)*cp) && *cp != ' ')
+		if (isdigit((unsigned char)*cp))
+		  isdig = 1;
+		else if (*cp != ' ')
 		  break;
-	      
+
 	      if (*cp)
 		{
 		  if (lastp)
@@ -2719,7 +2881,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		      new->domain = strip_hostname(new->hostname);			
 		    }
 		}
-	      else
+	      else if (isdig)
 		{
 		  new->lease_time = atoi(a[j]) * fac; 
 		  /* Leases of a minute or less confuse
@@ -3215,6 +3377,31 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 #endif
       
 #ifdef HAVE_DHCP6
+    case LOPT_RA_PARAM: /* --ra-param */
+      if ((comma = split(arg)))
+	{
+	  struct ra_interface *new = opt_malloc(sizeof(struct ra_interface));
+	  new->lifetime = -1;
+	  new->prio = 0;
+	  new->name = opt_string_alloc(arg);
+	  if (strcasestr(comma, "high") == comma || strcasestr(comma, "low") == comma)
+	    {
+	      if (*comma == 'l' || *comma == 'L')
+		new->prio = 0x18;
+	      else
+		new->prio = 0x08;
+	      comma = split(comma);
+	    }
+	   arg = split(comma);
+	   if (!atoi_check(comma, &new->interval) || 
+	      (arg && !atoi_check(arg, &new->lifetime)))
+	    ret_err(_("bad RA-params"));
+	  
+	  new->next = daemon->ra_interfaces;
+	  daemon->ra_interfaces = new;
+	}
+      break;
+      
     case LOPT_DUID: /* --dhcp-duid */
       if (!(comma = split(arg)) || !atoi_check(arg, (int *)&daemon->duid_enterprise))
 	ret_err(_("bad DUID"));
@@ -3276,15 +3463,26 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	
 	new = opt_malloc(sizeof(struct interface_name));
 	new->next = NULL;
-	new->addr4 = NULL;
-#ifdef HAVE_IPV6
-	new->addr6 = NULL;
-#endif
+	new->addr = NULL;
+	
 	/* Add to the end of the list, so that first name
 	   of an interface is used for PTR lookups. */
 	for (up = &daemon->int_names; *up; up = &((*up)->next));
 	*up = new;
 	new->name = domain;
+	new->family = 0;
+	arg = split_chr(comma, '/');
+	if (arg)
+	  {
+	    if (strcmp(arg, "4") == 0)
+	      new->family = AF_INET;
+#ifdef HAVE_IPV6
+	    else if (strcmp(arg, "6") == 0)
+	      new->family = AF_INET6;
+#endif
+	    else
+	      ret_err(gen_err);
+	  } 
 	new->intr = opt_string_alloc(comma);
 	break;
       }
@@ -3378,7 +3576,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
     case LOPT_RR: /* dns-rr */
       {
        	struct txt_record *new;
-	size_t len;
+	size_t len = len;
 	char *data;
 	int val;
 
@@ -3419,7 +3617,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	new->next = daemon->txt;
 	daemon->txt = new;
 	new->class = C_IN;
-	
+	new->stat = 0;
+
 	if (!(new->name = canonicalise_opt(arg)))
 	  ret_err(_("bad TXT record"));
 	
@@ -3559,9 +3758,64 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	daemon->host_records_tail = new;
 	break;
       }
-      
+
+#ifdef HAVE_DNSSEC
+    case LOPT_TRUST_ANCHOR:
+      {
+	struct ds_config *new = opt_malloc(sizeof(struct ds_config));
+      	char *cp, *cp1, *keyhex, *digest, *algo = NULL;
+	int len;
+	
+	new->class = C_IN;
+
+	if ((comma = split(arg)) && (algo = split(comma)))
+	  {
+	    int class = 0;
+	    if (strcmp(comma, "IN") == 0)
+	      class = C_IN;
+	    else if (strcmp(comma, "CH") == 0)
+	      class = C_CHAOS;
+	    else if (strcmp(comma, "HS") == 0)
+	      class = C_HESIOD;
+	    
+	    if (class != 0)
+	      {
+		new->class = class;
+		comma = algo;
+		algo = split(comma);
+	      }
+	  }
+		  
+       	if (!comma || !algo || !(digest = split(algo)) || !(keyhex = split(digest)) ||
+	    !atoi_check16(comma, &new->keytag) || 
+	    !atoi_check8(algo, &new->algo) ||
+	    !atoi_check8(digest, &new->digest_type) ||
+	    !(new->name = canonicalise_opt(arg)))
+	  ret_err(_("bad trust anchor"));
+	    
+	/* Upper bound on length */
+	len = (2*strlen(keyhex))+1;
+	new->digest = opt_malloc(len);
+	unhide_metas(keyhex);
+	/* 4034: "Whitespace is allowed within digits" */
+	for (cp = keyhex; *cp; )
+	  if (isspace(*cp))
+	    for (cp1 = cp; *cp1; cp1++)
+	      *cp1 = *(cp1+1);
+	  else
+	    cp++;
+	if ((new->digestlen = parse_hex(keyhex, (unsigned char *)new->digest, len, NULL, NULL)) == -1)
+	  ret_err(_("bad HEX in trust anchor"));
+	
+	new->next = daemon->ds;
+	daemon->ds = new;
+	
+	break;
+      }
+#endif
+		
     default:
-      ret_err(_("unsupported option (check that dnsmasq was compiled with DHCP/TFTP/DBus support)"));
+      ret_err(_("unsupported option (check that dnsmasq was compiled with DHCP/TFTP/DNSSEC/DBus support)"));
       
     }
   
@@ -3575,12 +3829,13 @@ static void read_file(char *file, FILE *f, int hard_opt)
   
   while (fgets(buff, MAXDNAME, f))
     {
-      int white, i, option = hard_opt;
+      int white, i;
+      volatile int option = (hard_opt == LOPT_REV_SERV) ? 0 : hard_opt;
       char *errmess, *p, *arg = NULL, *start;
       size_t len;
 
       /* Memory allocation failure longjmps here if mem_recover == 1 */ 
-      if (option != 0)
+      if (option != 0 || hard_opt == LOPT_REV_SERV)
 	{
 	  if (setjmp(mem_jmp))
 	    continue;
@@ -3681,13 +3936,15 @@ static void read_file(char *file, FILE *f, int hard_opt)
 	    errmess = _("extraneous parameter");
 	  else if (opts[i].has_arg == 1 && !arg)
 	    errmess = _("missing parameter");
+	  else if (hard_opt == LOPT_REV_SERV && option != 'S' && option != LOPT_REV_SERV)
+	    errmess = _("illegal option");
 	}
 
     oops:
       if (errmess)
 	strcpy(daemon->namebuff, errmess);
 	  
-      if (errmess || !one_opt(option, arg, buff, _("error"), 0))
+      if (errmess || !one_opt(option, arg, buff, _("error"), 0, hard_opt == LOPT_REV_SERV))
 	{
 	  sprintf(daemon->namebuff + strlen(daemon->namebuff), _(" at line %d of %s"), lineno, file);
 	  if (hard_opt != 0)
@@ -3772,10 +4029,11 @@ static int one_file(char *file, int hard_opt)
 /* expand any name which is a directory */
 struct hostsfile *expand_filelist(struct hostsfile *list)
 {
-  int i;
+  unsigned int i;
   struct hostsfile *ah;
 
-  for (i = 0, ah = list; ah; ah = ah->next)
+  /* find largest used index */
+  for (i = SRC_AH, ah = list; ah; ah = ah->next)
     {
       if (i <= ah->index)
 	i = ah->index + 1;
@@ -3869,6 +4127,22 @@ struct hostsfile *expand_filelist(struct hostsfile *list)
   return list;
 }
 
+void read_servers_file(void)
+{
+  FILE *f;
+
+  if (!(f = fopen(daemon->servers_file, "r")))
+    {
+       my_syslog(LOG_ERR, _("cannot read %s: %s"), daemon->servers_file, strerror(errno));
+       return;
+    }
+  
+  mark_servers(SERV_FROM_FILE);
+  cleanup_servers();
+  
+  read_file(daemon->servers_file, f, LOPT_REV_SERV);
+}
+ 
 
 #ifdef HAVE_DHCP
 void reread_dhcp(void)
@@ -3993,9 +4267,18 @@ void read_opts(int argc, char **argv, char *compile_opts)
   daemon->soa_refresh = SOA_REFRESH;
   daemon->soa_retry = SOA_RETRY;
   daemon->soa_expiry = SOA_EXPIRY;
-  add_txt("version.bind", "dnsmasq-" VERSION );
-  add_txt("authors.bind", "Simon Kelley");
-  add_txt("copyright.bind", COPYRIGHT);
+  add_txt("version.bind", "dnsmasq-" VERSION, 0 );
+  add_txt("authors.bind", "Simon Kelley", 0);
+  add_txt("copyright.bind", COPYRIGHT, 0);
+  add_txt("cachesize.bind", NULL, TXT_STAT_CACHESIZE);
+  add_txt("insertions.bind", NULL, TXT_STAT_INSERTS);
+  add_txt("evictions.bind", NULL, TXT_STAT_EVICTIONS);
+  add_txt("misses.bind", NULL, TXT_STAT_MISSES);
+  add_txt("hits.bind", NULL, TXT_STAT_HITS);
+#ifdef HAVE_AUTH
+  add_txt("auth.bind", NULL, TXT_STAT_AUTH);
+#endif
+  add_txt("servers.bind", NULL, TXT_STAT_SERVERS);
 
   while (1) 
     {
@@ -4062,9 +4345,9 @@ void read_opts(int argc, char **argv, char *compile_opts)
       else
 	{
 #ifdef HAVE_GETOPT_LONG
-	  if (!one_opt(option, arg, daemon->namebuff, _("try --help"), 1))
+	  if (!one_opt(option, arg, daemon->namebuff, _("try --help"), 1, 0))
 #else 
-	  if (!one_opt(option, arg, daemon->namebuff, _("try -w"), 1)) 
+	    if (!one_opt(option, arg, daemon->namebuff, _("try -w"), 1, 0)) 
 #endif  
 	    die(_("bad command line options: %s"), daemon->namebuff, EC_BADCONF);
 	}
@@ -4196,6 +4479,11 @@ void read_opts(int argc, char **argv, char *compile_opts)
   else if (option_bool(OPT_DHCP_FQDN))
     die(_("there must be a default domain when --dhcp-fqdn is set"), NULL, EC_BADCONF);
 
+  /* If there's access-control config, then ignore --local-service, it's intended
+     as a system default to keep otherwise unconfigured installations safe. */
+  if (daemon->if_names || daemon->if_except || daemon->if_addrs || daemon->authserver)
+    reset_option_bool(OPT_LOCAL_SERVICE); 
+
   if (testmode)
     {
       fprintf(stderr, "dnsmasq: %s.\n", _("syntax check OK"));

src/outpacket.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -31,12 +31,13 @@ struct ra_param {
   int ind, managed, other, found_context, first;
   char *if_name;
   struct dhcp_netid *tags;
-  struct in6_addr link_local, link_global;
-  unsigned int pref_time;
+  struct in6_addr link_local, link_global, ula;
+  unsigned int glob_pref_time, link_pref_time, ula_pref_time, adv_interval;
 };
 
 struct search_param {
   time_t now; int iface;
+  char name[IF_NAMESIZE+1];
 };
 
 static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *dest);
@@ -47,7 +48,11 @@ static int iface_search(struct in6_addr *local,  int prefix,
 			int scope, int if_index, int flags, 
 			int prefered, int valid, void *vparam);
 static int add_lla(int index, unsigned int type, char *mac, size_t maclen, void *parm);
-static void new_timeout(struct dhcp_context *context, time_t now);
+static void new_timeout(struct dhcp_context *context, char *iface_name, time_t now);
+static unsigned int calc_lifetime(struct ra_interface *ra);
+static unsigned int calc_interval(struct ra_interface *ra);
+static unsigned int calc_prio(struct ra_interface *ra);
+static struct ra_interface *find_iface_param(char *iface);
 
 static int hop_limit;
 
@@ -184,7 +189,8 @@ void icmp6_packet(time_t now)
 	  mac = daemon->namebuff;
 	}
          
-      my_syslog(MS_DHCP | LOG_INFO, "RTR-SOLICIT(%s) %s", interface, mac);
+      if (!option_bool(OPT_QUIET_RA))
+	my_syslog(MS_DHCP | LOG_INFO, "RTR-SOLICIT(%s) %s", interface, mac);
       /* source address may not be valid in solicit request. */
       send_ra(now, if_index, interface, !IN6_IS_ADDR_UNSPECIFIED(&from.sin6_addr) ? &from.sin6_addr : NULL);
     }
@@ -198,19 +204,21 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
   struct dhcp_context *context, *tmp,  **up;
   struct dhcp_netid iface_id;
   struct dhcp_opt *opt_cfg;
-  int done_dns = 0;
+  struct ra_interface *ra_param = find_iface_param(iface_name);
+  int done_dns = 0, old_prefix = 0;
+  unsigned int min_pref_time;
 #ifdef HAVE_LINUX_NETWORK
   FILE *f;
 #endif
-
+ 
   save_counter(0);
   ra = expand(sizeof(struct ra_packet));
   
   ra->type = ND_ROUTER_ADVERT;
   ra->code = 0;
   ra->hop_limit = hop_limit;
-  ra->flags = 0x00;
-  ra->lifetime = htons(RA_INTERVAL * 3); /* AdvDefaultLifetime * 3 */
+  ra->flags = calc_prio(ra_param);
+  ra->lifetime = htons(calc_lifetime(ra_param));
   ra->reachable_time = 0;
   ra->retrans_time = 0;
 
@@ -221,7 +229,8 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
   parm.if_name = iface_name;
   parm.first = 1;
   parm.now = now;
-  parm.pref_time = 0;
+  parm.glob_pref_time = parm.link_pref_time = parm.ula_pref_time = 0;
+  parm.adv_interval = calc_interval(ra_param);
   
   /* set tag with name == interface */
   iface_id.net = iface_name;
@@ -237,6 +246,18 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
   if (!iface_enumerate(AF_INET6, &parm, add_prefixes))
     return;
 
+  /* Find smallest preferred time within address classes,
+     to use as lifetime for options. This is a rather arbitrary choice. */
+  min_pref_time = 0xffffffff;
+  if (parm.glob_pref_time != 0 && parm.glob_pref_time < min_pref_time)
+    min_pref_time = parm.glob_pref_time;
+  
+  if (parm.ula_pref_time != 0 && parm.ula_pref_time < min_pref_time)
+    min_pref_time = parm.ula_pref_time;
+
+  if (parm.link_pref_time != 0 && parm.link_pref_time < min_pref_time)
+    min_pref_time = parm.link_pref_time;
+
   /* Look for constructed contexts associated with addresses which have gone, 
      and advertise them with preferred_time == 0  RFC 6204 4.3 L-13 */
   for (up = &daemon->dhcp6, context = daemon->dhcp6; context; context = tmp)
@@ -259,15 +280,33 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
 	      struct in6_addr local = context->start6;
 	      int do_slaac = 0;
 
-	      parm.found_context = 1;
+	      old_prefix = 1;
 
 	      /* zero net part of address */
 	      setaddr6part(&local, addr6part(&local) & ~((context->prefix == 64) ? (u64)-1LL : (1LLU << (128 - context->prefix)) - 1LLU));
 	     
+	      
 	      if ((context->flags & 
 		   (CONTEXT_RA_ONLY | CONTEXT_RA_NAME | CONTEXT_RA_STATELESS)))
-		do_slaac = 1;
-	      
+		{
+		  do_slaac = 1;
+		  if (context->flags & CONTEXT_DHCP)
+		    {
+		      parm.other = 1; 
+		      if (!(context->flags & CONTEXT_RA_STATELESS))
+			parm.managed = 1;
+		    }
+		}
+	      else
+		{
+		  /* don't do RA for non-ra-only unless --enable-ra is set */
+		  if (option_bool(OPT_RA))
+		    {
+		      parm.managed = 1;
+		      parm.other = 1;
+		    }
+		}
+
 	      if ((opt = expand(sizeof(struct prefix_opt))))
 		{
 		  opt->type = ICMP6_OPT_PREFIX;
@@ -281,7 +320,8 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
 		  opt->prefix = local;
 		  
 		  inet_ntop(AF_INET6, &local, daemon->addrbuff, ADDRSTRLEN);
-		  my_syslog(MS_DHCP | LOG_INFO, "RTR-ADVERT(%s) %s old prefix", iface_name, daemon->addrbuff); 		    
+		  if (!option_bool(OPT_QUIET_RA))
+		    my_syslog(MS_DHCP | LOG_INFO, "RTR-ADVERT(%s) %s old prefix", iface_name, daemon->addrbuff); 		    
 		}
 	   
 	      up = &context->next;
@@ -291,9 +331,14 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
 	up = &context->next;
     }
     
-  if (!parm.found_context)
-    return;
-    
+  /* If we're advertising only old prefixes, set router lifetime to zero. */
+  if (old_prefix && !parm.found_context)
+    ra->lifetime = htons(0);
+
+  /* No prefixes to advertise. */
+  if (!old_prefix && !parm.found_context)
+    return; 
+  
 #ifdef HAVE_LINUX_NETWORK
   /* Note that IPv6 MTU is not necessarilly the same as the IPv4 MTU
      available from SIOCGIFMTU */
@@ -326,22 +371,48 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
       
       if (opt_cfg->opt == OPTION6_DNS_SERVER)
         {
-	  struct in6_addr *a = (struct in6_addr *)opt_cfg->val;
+	  struct in6_addr *a;
+	  int len;
 
 	  done_dns = 1;
+
           if (opt_cfg->len == 0)
-            continue;
+	    continue;
 	  
-	  put_opt6_char(ICMP6_OPT_RDNSS);
-	  put_opt6_char((opt_cfg->len/8) + 1);
-	  put_opt6_short(0);
-	  put_opt6_long(RA_INTERVAL * 2); /* lifetime - twice RA retransmit */
-	  /* zero means "self" */
-	  for (i = 0; i < opt_cfg->len; i += IN6ADDRSZ, a++)
-	    if (IN6_IS_ADDR_UNSPECIFIED(a))
-	      put_opt6(&parm.link_global, IN6ADDRSZ);
-	    else
-	      put_opt6(a, IN6ADDRSZ);
+	  /* reduce len for any addresses we can't substitute */
+	  for (a = (struct in6_addr *)opt_cfg->val, len = opt_cfg->len, i = 0; 
+	       i < opt_cfg->len; i += IN6ADDRSZ, a++)
+	    if ((IN6_IS_ADDR_UNSPECIFIED(a) && parm.glob_pref_time == 0) ||
+		(IN6_IS_ADDR_ULA_ZERO(a) && parm.ula_pref_time == 0) ||
+		(IN6_IS_ADDR_LINK_LOCAL_ZERO(a) && parm.link_pref_time == 0))
+	      len -= IN6ADDRSZ;
+
+	  if (len != 0)
+	    {
+	      put_opt6_char(ICMP6_OPT_RDNSS);
+	      put_opt6_char((len/8) + 1);
+	      put_opt6_short(0);
+	      put_opt6_long(min_pref_time);
+	 
+	      for (a = (struct in6_addr *)opt_cfg->val, i = 0; i <  opt_cfg->len; i += IN6ADDRSZ, a++)
+		if (IN6_IS_ADDR_UNSPECIFIED(a))
+		  {
+		    if (parm.glob_pref_time != 0)
+		      put_opt6(&parm.link_global, IN6ADDRSZ);
+		  }
+		else if (IN6_IS_ADDR_ULA_ZERO(a))
+		  {
+		    if (parm.ula_pref_time != 0)
+		    put_opt6(&parm.ula, IN6ADDRSZ);
+		  }
+		else if (IN6_IS_ADDR_LINK_LOCAL_ZERO(a))
+		  {
+		    if (parm.link_pref_time != 0)
+		      put_opt6(&parm.link_local, IN6ADDRSZ);
+		  }
+		else
+		  put_opt6(a, IN6ADDRSZ);
+	    }
 	}
       
       if (opt_cfg->opt == OPTION6_DOMAIN_SEARCH && opt_cfg->len != 0)
@@ -351,7 +422,7 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
 	  put_opt6_char(ICMP6_OPT_DNSSL);
 	  put_opt6_char(len + 1);
 	  put_opt6_short(0);
-	  put_opt6_long(RA_INTERVAL * 2); /* lifetime - twice RA retransmit */
+	  put_opt6_long(min_pref_time); 
 	  put_opt6(opt_cfg->val, opt_cfg->len);
 	  
 	  /* pad */
@@ -360,14 +431,14 @@ static void send_ra(time_t now, int iface, char *iface_name, struct in6_addr *de
 	}
     }
 	
-  if (daemon->port == NAMESERVER_PORT && !done_dns)
+  if (daemon->port == NAMESERVER_PORT && !done_dns && parm.link_pref_time != 0)
     {
       /* default == us, as long as we are supplying DNS service. */
       put_opt6_char(ICMP6_OPT_RDNSS);
       put_opt6_char(3);
       put_opt6_short(0);
-      put_opt6_long(RA_INTERVAL * 2); /* lifetime - twice RA retransmit */
-      put_opt6(&parm.link_global, IN6ADDRSZ);
+      put_opt6_long(min_pref_time); 
+      put_opt6(&parm.link_local, IN6ADDRSZ);
     }
 
   /* set managed bits unless we're providing only RA on this link */
@@ -412,11 +483,20 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
   if (if_index == param->ind)
     {
       if (IN6_IS_ADDR_LINKLOCAL(local))
-	param->link_local = *local;
+	{
+	  /* Can there be more than one LL address?
+	     Select the one with the longest preferred time 
+	     if there is. */
+	  if (preferred > param->link_pref_time)
+	    {
+	      param->link_pref_time = preferred;
+	      param->link_local = *local;
+	    }
+	}
       else if (!IN6_IS_ADDR_LOOPBACK(local) &&
 	       !IN6_IS_ADDR_MULTICAST(local))
 	{
-	  int do_prefix = 0;
+	  int real_prefix = 0;
 	  int do_slaac = 0;
 	  int deprecate  = 0;
 	  int constructed = 0;
@@ -425,9 +505,9 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
 	  
 	  for (context = daemon->dhcp6; context; context = context->next)
 	    if (!(context->flags & (CONTEXT_TEMPLATE | CONTEXT_OLD)) &&
-		prefix == context->prefix &&
-		is_same_net6(local, &context->start6, prefix) &&
-		is_same_net6(local, &context->end6, prefix))
+		prefix <= context->prefix &&
+		is_same_net6(local, &context->start6, context->prefix) &&
+		is_same_net6(local, &context->end6, context->prefix))
 	      {
 		context->saved_valid = valid;
 
@@ -455,8 +535,8 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
 		if (time > context->lease_time)
 		  {
 		    time = context->lease_time;
-		    if (time < ((unsigned int)(3 * RA_INTERVAL)))
-		      time = 3 * RA_INTERVAL;
+		    if (time < ((unsigned int)(3 * param->adv_interval)))
+		      time = 3 * param->adv_interval;
 		  }
 
 		if (context->flags & CONTEXT_DEPRECATE)
@@ -482,7 +562,7 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
 		    if (!param->first)
 		      context->ra_time = 0;
 		    context->flags |= CONTEXT_RA_DONE;
-		    do_prefix = 1;
+		    real_prefix = context->prefix;
 		  }
 
 		param->first = 0;	
@@ -502,25 +582,36 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
 	  /* configured time is ceiling */
 	  if (!constructed || preferred > time)
 	    preferred = time;
-	    	  
-	  if (preferred > param->pref_time)
+	  
+	  if (IN6_IS_ADDR_ULA(local))
 	    {
-	      param->pref_time = preferred;
-	      param->link_global = *local;
+	      if (preferred > param->ula_pref_time)
+		{
+		  param->ula_pref_time = preferred;
+		  param->ula = *local;
+		}
+	    }
+	  else 
+	    {
+	      if (preferred > param->glob_pref_time)
+		{
+		  param->glob_pref_time = preferred;
+		  param->link_global = *local;
+		}
 	    }
 	  
-	  if (do_prefix)
+	  if (real_prefix != 0)
 	    {
 	      struct prefix_opt *opt;
 	     	      
 	      if ((opt = expand(sizeof(struct prefix_opt))))
 		{
 		  /* zero net part of address */
-		  setaddr6part(local, addr6part(local) & ~((prefix == 64) ? (u64)-1LL : (1LLU << (128 - prefix)) - 1LLU));
+		  setaddr6part(local, addr6part(local) & ~((real_prefix == 64) ? (u64)-1LL : (1LLU << (128 - real_prefix)) - 1LLU));
 		  
 		  opt->type = ICMP6_OPT_PREFIX;
 		  opt->len = 4;
-		  opt->prefix_len = prefix;
+		  opt->prefix_len = real_prefix;
 		  /* autonomous only if we're not doing dhcp, always set "on-link" */
 		  opt->flags = do_slaac ? 0xC0 : 0x80;
 		  opt->valid_lifetime = htonl(valid);
@@ -529,9 +620,9 @@ static int add_prefixes(struct in6_addr *local,  int prefix,
 		  opt->prefix = *local;
 		  
 		  inet_ntop(AF_INET6, local, daemon->addrbuff, ADDRSTRLEN);
-		  my_syslog(MS_DHCP | LOG_INFO, "RTR-ADVERT(%s) %s", param->if_name, daemon->addrbuff); 		    
+		  if (!option_bool(OPT_QUIET_RA))
+		    my_syslog(MS_DHCP | LOG_INFO, "RTR-ADVERT(%s) %s", param->if_name, daemon->addrbuff); 		    
 		}
-
 	    }
 	}
     }          
@@ -564,8 +655,7 @@ time_t periodic_ra(time_t now)
   struct search_param param;
   struct dhcp_context *context;
   time_t next_event;
-  char interface[IF_NAMESIZE+1];
-  
+    
   param.now = now;
   param.iface = 0;
 
@@ -586,13 +676,15 @@ time_t periodic_ra(time_t now)
       if (!context)
 	break;
       
-      if ((context->flags & CONTEXT_OLD) && context->if_index != 0)
+      if ((context->flags & CONTEXT_OLD) && 
+	  context->if_index != 0 && 
+	  indextoname(daemon->icmp6fd, context->if_index, param.name))
 	{
 	  /* A context for an old address. We'll not find the interface by 
-	     looking for addresses, but we know it anyway, as long as we
-	     sent at least one RA whilst the address was current. */
+	     looking for addresses, but we know it anyway, since the context is
+	     constructed */
 	  param.iface = context->if_index;
-	  new_timeout(context, now);
+	  new_timeout(context, param.name, now);
 	}
       else if (iface_enumerate(AF_INET6, &param, iface_search))
 	/* There's a context overdue, but we can't find an interface
@@ -603,15 +695,14 @@ time_t periodic_ra(time_t now)
 	context->ra_time = 0;
       
       if (param.iface != 0 &&
-	  indextoname(daemon->icmp6fd, param.iface, interface) &&
-	  iface_check(AF_LOCAL, NULL, interface, NULL))
+	  iface_check(AF_LOCAL, NULL, param.name, NULL))
 	{
 	  struct iname *tmp;
 	  for (tmp = daemon->dhcp_except; tmp; tmp = tmp->next)
-	    if (tmp->name && wildcard_match(tmp->name, interface))
+	    if (tmp->name && wildcard_match(tmp->name, param.name))
 	      break;
 	  if (!tmp)
-	    send_ra(now, param.iface, interface, NULL); 
+	    send_ra(now, param.iface, param.name, NULL); 
 	}
     }      
   return next_event;
@@ -630,9 +721,9 @@ static int iface_search(struct in6_addr *local,  int prefix,
  
   for (context = daemon->dhcp6; context; context = context->next)
     if (!(context->flags & (CONTEXT_TEMPLATE | CONTEXT_OLD)) &&
-	prefix == context->prefix &&
-	is_same_net6(local, &context->start6, prefix) &&
-	is_same_net6(local, &context->end6, prefix) &&
+	prefix <= context->prefix &&
+	is_same_net6(local, &context->start6, context->prefix) &&
+	is_same_net6(local, &context->end6, context->prefix) &&
 	context->ra_time != 0 && 
 	difftime(context->ra_time, param->now) <= 0.0)
       {
@@ -643,14 +734,21 @@ static int iface_search(struct in6_addr *local,  int prefix,
 	if (!(flags & IFACE_TENTATIVE))
 	  param->iface = if_index;
 	
-	new_timeout(context, param->now);
+	/* should never fail */
+	if (!indextoname(daemon->icmp6fd, if_index, param->name))
+	  {
+	    param->iface = 0;
+	    return 0;
+	  }
+	
+	new_timeout(context, param->name, param->now);
 	
 	/* zero timers for other contexts on the same subnet, so they don't timeout 
 	   independently */
 	for (context = context->next; context; context = context->next)
-	  if (prefix == context->prefix &&
-	      is_same_net6(local, &context->start6, prefix) &&
-	      is_same_net6(local, &context->end6, prefix))
+	  if (prefix <= context->prefix &&
+	      is_same_net6(local, &context->start6, context->prefix) &&
+	      is_same_net6(local, &context->end6, context->prefix))
 	    context->ra_time = 0;
 	
 	return 0; /* found, abort */
@@ -659,14 +757,70 @@ static int iface_search(struct in6_addr *local,  int prefix,
   return 1; /* keep searching */
 }
  
-static void new_timeout(struct dhcp_context *context, time_t now)
+static void new_timeout(struct dhcp_context *context, char *iface_name, time_t now)
 {
-  if (difftime(now, context->ra_short_period_start) < 60.0 || option_bool(OPT_FAST_RA))
+  if (difftime(now, context->ra_short_period_start) < 60.0)
     /* range 5 - 20 */
     context->ra_time = now + 5 + (rand16()/4400);
   else
-    /* range 3/4 - 1 times RA_INTERVAL */
-    context->ra_time = now + (3 * RA_INTERVAL)/4 + ((RA_INTERVAL * (unsigned int)rand16()) >> 18);
+    {
+      /* range 3/4 - 1 times MaxRtrAdvInterval */
+      unsigned int adv_interval = calc_interval(find_iface_param(iface_name));
+      context->ra_time = now + (3 * adv_interval)/4 + ((adv_interval * (unsigned int)rand16()) >> 18);
+    }
+}
+
+static struct ra_interface *find_iface_param(char *iface)
+{
+  struct ra_interface *ra;
+  
+  for (ra = daemon->ra_interfaces; ra; ra = ra->next)
+    if (wildcard_match(ra->name, iface))
+      return ra;
+
+  return NULL;
+}
+
+static unsigned int calc_interval(struct ra_interface *ra)
+{
+  int interval = 600;
+  
+  if (ra && ra->interval != 0)
+    {
+      interval = ra->interval;
+      if (interval > 1800)
+	interval = 1800;
+      else if (interval < 4)
+	interval = 4;
+    }
+  
+  return (unsigned int)interval;
+}
+
+static unsigned int calc_lifetime(struct ra_interface *ra)
+{
+  int lifetime, interval = (int)calc_interval(ra);
+  
+  if (!ra || ra->lifetime == -1) /* not specified */
+    lifetime = 3 * interval;
+  else
+    {
+      lifetime = ra->lifetime;
+      if (lifetime < interval && lifetime != 0)
+	lifetime = interval;
+      else if (lifetime > 9000)
+	lifetime = 9000;
+    }
+  
+  return (unsigned int)lifetime;
+}
+
+static unsigned int calc_prio(struct ra_interface *ra)
+{
+  if (ra)
+    return ra->prio;
+  
+  return 0;
 }
 
 #endif

src/rfc2131.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -34,7 +34,7 @@ static void option_put_string(struct dhcp_packet *mess, unsigned char *end,
 static struct in_addr option_addr(unsigned char *opt);
 static unsigned int option_uint(unsigned char *opt, int i, int size);
 static void log_packet(char *type, void *addr, unsigned char *ext_mac, 
-		       int mac_len, char *interface, char *string, u32 xid);
+		       int mac_len, char *interface, char *string, char *err, u32 xid);
 static unsigned char *option_find(struct dhcp_packet *mess, size_t size, int opt_type, int minsize);
 static unsigned char *option_find1(unsigned char *p, unsigned char *end, int opt, int minsize);
 static size_t dhcp_packet_size(struct dhcp_packet *mess, unsigned char *agent_id, unsigned char *real_end);
@@ -92,7 +92,10 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
   struct dhcp_netid known_id, iface_id, cpewan_id;
   struct dhcp_opt *o;
   unsigned char pxe_uuid[17];
-  unsigned char *oui = NULL, *serial = NULL, *class = NULL;
+  unsigned char *oui = NULL, *serial = NULL;
+#ifdef HAVE_SCRIPT
+  unsigned char *class = NULL;
+#endif
 
   subnet_addr.s_addr = override.s_addr = 0;
 
@@ -156,8 +159,9 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 		  unsigned char *y = option_ptr(opt, offset + elen + 5);
 		  oui = option_find1(x, y, 1, 1);
 		  serial = option_find1(x, y, 2, 1);
-		  class = option_find1(x, y, 3, 1);
-		  
+#ifdef HAVE_SCRIPT
+		  class = option_find1(x, y, 3, 1);		  
+#endif
 		  /* If TR069-id is present set the tag "cpewan-id" to facilitate echoing 
 		     the gateway id back. Note that the device class is optional */
 		  if (oui && serial)
@@ -610,7 +614,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	    }
 	}
       
-      log_packet("BOOTP", logaddr, mess->chaddr, mess->hlen, iface_name, message, mess->xid);
+      log_packet("BOOTP", logaddr, mess->chaddr, mess->hlen, iface_name, NULL, message, mess->xid);
       
       return message ? 0 : dhcp_packet_size(mess, agent_id, real_end);
     }
@@ -827,7 +831,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	  opt71.next = daemon->dhcp_opts;
 	  do_encap_opts(&opt71, OPTION_VENDOR_CLASS_OPT, DHOPT_VENDOR_MATCH, mess, end, 0);
 	  
-	  log_packet("PXE", &mess->yiaddr, emac, emac_len, iface_name, (char *)mess->file, mess->xid);
+	  log_packet("PXE", &mess->yiaddr, emac, emac_len, iface_name, (char *)mess->file, NULL, mess->xid);
 	  log_tags(tagif_netid, ntohl(mess->xid));
 	  return dhcp_packet_size(mess, agent_id, real_end);	  
 	}
@@ -887,7 +891,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 		  prune_vendor_opts(tagif_netid);
 		  do_encap_opts(pxe_opts(pxearch, tagif_netid, context->local, now), OPTION_VENDOR_CLASS_OPT, DHOPT_VENDOR_MATCH, mess, end, 0);
 		  
-		  log_packet("PXE", NULL, emac, emac_len, iface_name, ignore ? "proxy-ignored" : "proxy", mess->xid);
+		  log_packet("PXE", NULL, emac, emac_len, iface_name, ignore ? "proxy-ignored" : "proxy", NULL, mess->xid);
 		  log_tags(tagif_netid, ntohl(mess->xid));
 		  return ignore ? 0 : dhcp_packet_size(mess, agent_id, real_end);	  
 		}
@@ -919,7 +923,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
       if (!(opt = option_find(mess, sz, OPTION_REQUESTED_IP, INADDRSZ)))
 	return 0;
       
-      log_packet("DHCPDECLINE", option_ptr(opt, 0), emac, emac_len, iface_name, daemon->dhcp_buff, mess->xid);
+      log_packet("DHCPDECLINE", option_ptr(opt, 0), emac, emac_len, iface_name, NULL, daemon->dhcp_buff, mess->xid);
       
       if (lease && lease->addr.s_addr == option_addr(opt).s_addr)
 	lease_prune(lease, now);
@@ -951,13 +955,15 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
       else
 	message = _("unknown lease");
 
-      log_packet("DHCPRELEASE", &mess->ciaddr, emac, emac_len, iface_name, message, mess->xid);
+      log_packet("DHCPRELEASE", &mess->ciaddr, emac, emac_len, iface_name, NULL, message, mess->xid);
 	
       return 0;
       
     case DHCPDISCOVER:
       if (ignore || have_config(config, CONFIG_DISABLE))
 	{
+	  if (option_bool(OPT_QUIET_DHCP))
+	    return 0;
 	  message = _("ignored");
 	  opt = NULL;
 	}
@@ -1015,7 +1021,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	    message = _("no address available");      
 	}
       
-      log_packet("DHCPDISCOVER", opt ? option_ptr(opt, 0) : NULL, emac, emac_len, iface_name, message, mess->xid); 
+      log_packet("DHCPDISCOVER", opt ? option_ptr(opt, 0) : NULL, emac, emac_len, iface_name, NULL, message, mess->xid); 
 
       if (message || !(context = narrow_context(context, mess->yiaddr, tagif_netid)))
 	return 0;
@@ -1028,7 +1034,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 
       log_tags(tagif_netid, ntohl(mess->xid));
       
-      log_packet("DHCPOFFER" , &mess->yiaddr, emac, emac_len, iface_name, NULL, mess->xid);
+      log_packet("DHCPOFFER" , &mess->yiaddr, emac, emac_len, iface_name, NULL, NULL, mess->xid);
       
       time = calc_time(context, config, option_find(mess, sz, OPTION_LEASE_TIME, 4));
       clear_packet(mess, end);
@@ -1144,7 +1150,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	  mess->yiaddr = mess->ciaddr;
 	}
       
-      log_packet("DHCPREQUEST", &mess->yiaddr, emac, emac_len, iface_name, NULL, mess->xid);
+      log_packet("DHCPREQUEST", &mess->yiaddr, emac, emac_len, iface_name, NULL, NULL, mess->xid);
  
       if (!message)
 	{
@@ -1216,7 +1222,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 
       if (message)
 	{
-	  log_packet("DHCPNAK", &mess->yiaddr, emac, emac_len, iface_name, message, mess->xid);
+	  log_packet("DHCPNAK", &mess->yiaddr, emac, emac_len, iface_name, NULL, message, mess->xid);
 	  
 	  mess->yiaddr.s_addr = 0;
 	  clear_packet(mess, end);
@@ -1355,7 +1361,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 	  else
 	    override = lease->override;
 
-	  log_packet("DHCPACK", &mess->yiaddr, emac, emac_len, iface_name, hostname, mess->xid);  
+	  log_packet("DHCPACK", &mess->yiaddr, emac, emac_len, iface_name, hostname, NULL, mess->xid);  
 	  
 	  clear_packet(mess, end);
 	  option_put(mess, end, OPTION_MESSAGE_TYPE, 1, DHCPACK);
@@ -1378,7 +1384,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
       if (ignore || have_config(config, CONFIG_DISABLE))
 	message = _("ignored");
       
-      log_packet("DHCPINFORM", &mess->ciaddr, emac, emac_len, iface_name, message, mess->xid);
+      log_packet("DHCPINFORM", &mess->ciaddr, emac, emac_len, iface_name, message, NULL, mess->xid);
      
       if (message || mess->ciaddr.s_addr == 0)
 	return 0;
@@ -1404,7 +1410,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 
       log_tags(tagif_netid, ntohl(mess->xid));
       
-      log_packet("DHCPACK", &mess->ciaddr, emac, emac_len, iface_name, hostname, mess->xid);
+      log_packet("DHCPACK", &mess->ciaddr, emac, emac_len, iface_name, hostname, NULL, mess->xid);
       
       if (lease)
 	{
@@ -1538,10 +1544,13 @@ static void add_extradata_opt(struct dhcp_lease *lease, unsigned char *opt)
 #endif
 
 static void log_packet(char *type, void *addr, unsigned char *ext_mac, 
-		       int mac_len, char *interface, char *string, u32 xid)
+		       int mac_len, char *interface, char *string, char *err, u32 xid)
 {
   struct in_addr a;
  
+  if (!err && !option_bool(OPT_LOG_OPTS) && option_bool(OPT_QUIET_DHCP))
+    return;
+  
   /* addr may be misaligned */
   if (addr)
     memcpy(&a, addr, sizeof(a));
@@ -1549,22 +1558,24 @@ static void log_packet(char *type, void *addr, unsigned char *ext_mac,
   print_mac(daemon->namebuff, ext_mac, mac_len);
   
   if(option_bool(OPT_LOG_OPTS))
-     my_syslog(MS_DHCP | LOG_INFO, "%u %s(%s) %s%s%s %s",
+     my_syslog(MS_DHCP | LOG_INFO, "%u %s(%s) %s%s%s %s%s",
 	       ntohl(xid), 
 	       type,
 	       interface, 
 	       addr ? inet_ntoa(a) : "",
 	       addr ? " " : "",
 	       daemon->namebuff,
-	       string ? string : "");
+	       string ? string : "",
+	       err ? err : "");
   else
-    my_syslog(MS_DHCP | LOG_INFO, "%s(%s) %s%s%s %s",
+    my_syslog(MS_DHCP | LOG_INFO, "%s(%s) %s%s%s %s%s",
 	      type,
 	      interface, 
 	      addr ? inet_ntoa(a) : "",
 	      addr ? " " : "",
 	      daemon->namebuff,
-	      string ? string : "");
+	      string ? string : "",
+	      err ? err : "");
 }
 
 static void log_options(unsigned char *start, u32 xid)

src/rfc3315.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -24,7 +24,7 @@ struct state {
   int clid_len, iaid, ia_type, interface, hostname_auth, lease_allocate;
   char *client_hostname, *hostname, *domain, *send_domain;
   struct dhcp_context *context;
-  struct in6_addr *link_address, *fallback;
+  struct in6_addr *link_address, *fallback, *ll_addr, *ula_addr;
   unsigned int xid, fqdn_flags;
   char *iface_name;
   void *packet_options, *end;
@@ -41,6 +41,7 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
 static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_t sz, int is_unicast, time_t now);
 static void log6_opts(int nest, unsigned int xid, void *start_opts, void *end_opts);
 static void log6_packet(struct state *state, char *type, struct in6_addr *addr, char *string);
+static void log6_quiet(struct state *state, char *type, struct in6_addr *addr, char *string);
 static void *opt6_find (void *opts, void *end, unsigned int search, unsigned int minsize);
 static void *opt6_next(void *opts, void *end);
 static unsigned int opt6_uint(unsigned char *opt, int offset, int size);
@@ -66,9 +67,14 @@ static void calculate_times(struct dhcp_context *context, unsigned int *min_time
 #define opt6_type(opt) (opt6_uint(opt, -4, 2))
 #define opt6_ptr(opt, i) ((void *)&(((unsigned char *)(opt))[4+(i)]))
 
+#define opt6_user_vendor_ptr(opt, i) ((void *)&(((unsigned char *)(opt))[2+(i)]))
+#define opt6_user_vendor_len(opt) ((int)(opt6_uint(opt, -4, 2)))
+#define opt6_user_vendor_next(opt, end) (opt6_next(((void *) opt) - 2, end))
+ 
 
 unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name,
-			   struct in6_addr *fallback, size_t sz, struct in6_addr *client_addr, time_t now)
+			   struct in6_addr *fallback,  struct in6_addr *ll_addr, struct in6_addr *ula_addr,
+			   size_t sz, struct in6_addr *client_addr, time_t now)
 {
   struct dhcp_vendor *vendor;
   int msg_type;
@@ -88,6 +94,8 @@ unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *if
   state.interface = interface;
   state.iface_name = iface_name;
   state.fallback = fallback;
+  state.ll_addr = ll_addr;
+  state.ula_addr = ula_addr;
   state.mac_len = 0;
   state.tags = NULL;
   state.link_address = NULL;
@@ -355,9 +363,10 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	      offset = 4;
 	    }
  
-	  for (enc_opt = opt6_ptr(opt, offset); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
-	    for (i = 0; i <= (opt6_len(enc_opt) - vendor->len); i++)
-	      if (memcmp(vendor->data, opt6_ptr(enc_opt, i), vendor->len) == 0)
+	  /* Note that format if user/vendor classes is different to DHCP options - no option types. */
+	  for (enc_opt = opt6_ptr(opt, offset); enc_opt; enc_opt = opt6_user_vendor_next(enc_opt, enc_end))
+	    for (i = 0; i <= (opt6_user_vendor_len(enc_opt) - vendor->len); i++)
+	      if (memcmp(vendor->data, opt6_user_vendor_ptr(enc_opt, i), vendor->len) == 0)
 		{
 		  vendor->netid.next = state->tags;
 		  state->tags = &vendor->netid;
@@ -590,7 +599,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	    end_opt6(o);
 	  }
 	
-  	log6_packet(state, "DHCPSOLICIT", NULL, ignore ? _("ignored") : NULL);
+  	log6_quiet(state, "DHCPSOLICIT", NULL, ignore ? _("ignored") : NULL);
 
       request_no_address:
 	solicit_tags = tagif;
@@ -758,7 +767,8 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	      }
 		 	   
 	    /* Return addresses for all valid contexts which don't yet have one */
-	    while ((c = address6_allocate(state->context, state->clid, state->clid_len, state->iaid, ia_counter, solicit_tags, plain_range, &addr)))
+	    while ((c = address6_allocate(state->context, state->clid, state->clid_len, state->ia_type == OPTION6_IA_TA,
+					  state->iaid, ia_counter, solicit_tags, plain_range, &addr)))
 	      {
 #ifdef OPTION6_PREFIX_CLASS
 		if (dump_all_prefix_classes && state->ia_type == OPTION6_IA_NA)
@@ -810,7 +820,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	*outmsgtypep = DHCP6REPLY;
 	state->lease_allocate = 1;
 
-	log6_packet(state, "DHCPREQUEST", NULL, ignore ? _("ignored") : NULL);
+	log6_quiet(state, "DHCPREQUEST", NULL, ignore ? _("ignored") : NULL);
 	
 	if (ignore)
 	  return 0;
@@ -923,7 +933,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	/* set reply message type */
 	*outmsgtypep = DHCP6REPLY;
 	
-	log6_packet(state, "DHCPRENEW", NULL, NULL);
+	log6_quiet(state, "DHCPRENEW", NULL, NULL);
 
 	for (opt = state->packet_options; opt; opt = opt6_next(opt, state->end))
 	  {
@@ -1006,8 +1016,11 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 		    message = _("address invalid");
 		  }
 
-		log6_packet(state, "DHCPREPLY", req_addr, message);	
-		
+		if (message)
+		  log6_packet(state, "DHCPREPLY", req_addr, message);	
+		else
+		  log6_quiet(state, "DHCPREPLY", req_addr, message);
+	
 		o1 =  new_opt6(OPTION6_IAADDR);
 		put_opt6(req_addr, sizeof(*req_addr));
 		put_opt6_long(preferred_time);
@@ -1029,7 +1042,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	/* set reply message type */
 	*outmsgtypep = DHCP6REPLY;
 	
-	log6_packet(state, "DHCPCONFIRM", NULL, NULL);
+	log6_quiet(state, "DHCPCONFIRM", NULL, NULL);
 	
 	for (opt = state->packet_options; opt; opt = opt6_next(opt, state->end))
 	  {
@@ -1050,7 +1063,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 		    return 1;
 		  }
 
-		log6_packet(state, "DHCPREPLY", req_addr, state->hostname);
+		log6_quiet(state, "DHCPREPLY", req_addr, state->hostname);
 	      }
 	  }	 
 
@@ -1079,7 +1092,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	else
 	  state->send_domain = get_domain6(NULL);
 
-	log6_packet(state, "DHCPINFORMATION-REQUEST", NULL, ignore ? _("ignored") : state->hostname);
+	log6_quiet(state, "DHCPINFORMATION-REQUEST", NULL, ignore ? _("ignored") : state->hostname);
 	if (ignore)
 	  return 0;
 	*outmsgtypep = DHCP6REPLY;
@@ -1093,7 +1106,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	/* set reply message type */
 	*outmsgtypep = DHCP6REPLY;
 
-	log6_packet(state, "DHCPRELEASE", NULL, NULL);
+	log6_quiet(state, "DHCPRELEASE", NULL, NULL);
 
 	for (opt = state->packet_options; opt; opt = opt6_next(opt, state->end))
 	  {
@@ -1155,7 +1168,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
 	/* set reply message type */
 	*outmsgtypep = DHCP6REPLY;
 	
-	log6_packet(state, "DHCPDECLINE", NULL, NULL);
+	log6_quiet(state, "DHCPDECLINE", NULL, NULL);
 
 	for (opt = state->packet_options; opt; opt = opt6_next(opt, state->end))
 	  {
@@ -1259,36 +1272,59 @@ static struct dhcp_netid *add_options(struct state *state, int do_refresh)
 	    continue;
 	}
       
-      if (opt_cfg->opt == OPTION6_DNS_SERVER)
-	{
-	  done_dns = 1;
-	  if (opt_cfg->len == 0)
-	    continue;
-	}
-
       if (opt_cfg->opt == OPTION6_REFRESH_TIME)
 	done_refresh = 1;
       
-      o = new_opt6(opt_cfg->opt);
       if (opt_cfg->flags & DHOPT_ADDR6)
 	{
-	  int j;
-	  struct in6_addr *a = (struct in6_addr *)opt_cfg->val;
-          for (j = 0; j < opt_cfg->len; j+=IN6ADDRSZ, a++)
-            {
-              /* zero means "self" (but not in vendorclass options.) */
-              if (IN6_IS_ADDR_UNSPECIFIED(a))
-                {
-		  if (!add_local_addrs(state->context))
-		    put_opt6(state->fallback, IN6ADDRSZ);
+	  int len, j;
+	  struct in6_addr *a;
+	  
+	  if (opt_cfg->opt == OPTION6_DNS_SERVER)
+	    done_dns = 1;
+	  
+	  for (a = (struct in6_addr *)opt_cfg->val, len = opt_cfg->len, j = 0; 
+	       j < opt_cfg->len; j += IN6ADDRSZ, a++)
+	    if ((IN6_IS_ADDR_ULA_ZERO(a) && IN6_IS_ADDR_UNSPECIFIED(state->ula_addr)) ||
+		(IN6_IS_ADDR_LINK_LOCAL_ZERO(a) && IN6_IS_ADDR_UNSPECIFIED(state->ll_addr)))
+	      len -= IN6ADDRSZ;
+	  
+	  if (len != 0)
+	    {
+	      
+	      o = new_opt6(opt_cfg->opt);
+	      	  
+	      for (a = (struct in6_addr *)opt_cfg->val, j = 0; j < opt_cfg->len; j+=IN6ADDRSZ, a++)
+		{
+		  if (IN6_IS_ADDR_UNSPECIFIED(a))
+		    {
+		      if (!add_local_addrs(state->context))
+			put_opt6(state->fallback, IN6ADDRSZ);
+		    }
+		  else if (IN6_IS_ADDR_ULA_ZERO(a))
+		    {
+		      if (!IN6_IS_ADDR_UNSPECIFIED(state->ula_addr))
+			put_opt6(state->ula_addr, IN6ADDRSZ);
+		    }
+		  else if (IN6_IS_ADDR_LINK_LOCAL_ZERO(a))
+		    {
+		      if (!IN6_IS_ADDR_UNSPECIFIED(state->ll_addr))
+			put_opt6(state->ll_addr, IN6ADDRSZ);
+		    }
+		  else
+		    put_opt6(a, IN6ADDRSZ);
 		}
-              else
-                put_opt6(a, IN6ADDRSZ);
-            }
+
+	      end_opt6(o);
+	    }
+	}
+      else
+	{
+	  o = new_opt6(opt_cfg->opt);
+	  if (opt_cfg->val)
+	    put_opt6(opt_cfg->val, opt_cfg->len);
+	  end_opt6(o);
 	}
-      else if (opt_cfg->val)
-	put_opt6(opt_cfg->val, opt_cfg->len);
-      end_opt6(o);
     }
   
   if (daemon->port == NAMESERVER_PORT && !done_dns)
@@ -1605,7 +1641,7 @@ static void add_address(struct state *state, struct dhcp_context *context, unsig
 	}
     }
 
-  log6_packet(state, state->lease_allocate ? "DHCPREPLY" : "DHCPADVERTISE", addr, state->hostname);
+  log6_quiet(state, state->lease_allocate ? "DHCPREPLY" : "DHCPADVERTISE", addr, state->hostname);
 
 }
 
@@ -1875,6 +1911,12 @@ static void log6_opts(int nest, unsigned int xid, void *start_opts, void *end_op
     }
 }		 
  
+static void log6_quiet(struct state *state, char *type, struct in6_addr *addr, char *string)
+{
+  if (option_bool(OPT_LOG_OPTS) || !option_bool(OPT_QUIET_DHCP6))
+    log6_packet(state, type, addr, string);
+}
+
 static void log6_packet(struct state *state, char *type, struct in6_addr *addr, char *string)
 {
   int clid_len = state->clid_len;

src/slaac.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -93,7 +93,6 @@ void slaac_add_addrs(struct dhcp_lease *lease, time_t now, int force)
 	    slaac->ping_time = now;
 	    slaac->backoff = 1;
 	    slaac->addr = addr;
-	    slaac->local = context->local6;
 	    /* Do RA's to prod it */
 	    ra_start_unsolicted(now, context);
 	  }
@@ -200,7 +199,8 @@ void slaac_ping_reply(struct in6_addr *sender, unsigned char *packet, char *inte
 	    slaac->backoff = 0;
 	    gotone = 1;
 	    inet_ntop(AF_INET6, sender, daemon->addrbuff, ADDRSTRLEN);
-	    my_syslog(MS_DHCP | LOG_INFO, "SLAAC-CONFIRM(%s) %s %s", interface, daemon->addrbuff, lease->hostname); 
+	    if (!option_bool(OPT_QUIET_DHCP6))
+	      my_syslog(MS_DHCP | LOG_INFO, "SLAAC-CONFIRM(%s) %s %s", interface, daemon->addrbuff, lease->hostname); 
 	  }
   
   lease_update_dns(gotone);

src/tftp.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -60,7 +60,12 @@ void tftp_request(struct listener *listen, time_t now)
   char *prefix = daemon->tftp_prefix;
   struct tftp_prefix *pref;
   struct all_addr addra;
-
+#ifdef HAVE_IPV6
+  /* Can always get recvd interface for IPv6 */
+  int check_dest = !option_bool(OPT_NOWILD) || listen->family == AF_INET6;
+#else
+  int check_dest = !option_bool(OPT_NOWILD);
+#endif
   union {
     struct cmsghdr align; /* this ensures alignment */
 #ifdef HAVE_IPV6
@@ -91,8 +96,9 @@ void tftp_request(struct listener *listen, time_t now)
 
   if ((len = recvmsg(listen->tftpfd, &msg, 0)) < 2)
     return;
-  
-  if (option_bool(OPT_NOWILD))
+
+  /* Can always get recvd interface for IPv6 */
+  if (!check_dest)
     {
       if (listen->iface)
 	{

src/util.c

@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2014 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
@@ -28,24 +28,12 @@
 #include <idna.h>
 #endif
 
-#ifdef HAVE_ARC4RANDOM
-void rand_init(void)
-{
-  return;
-}
-
-unsigned short rand16(void)
-{
-   return (unsigned short) (arc4random() >> 15);
-}
-
-#else
-
 /* SURF random number generator */
 
 static u32 seed[32];
 static u32 in[12];
 static u32 out[8];
+static int outleft = 0;
 
 void rand_init()
 {
@@ -83,18 +71,31 @@ static void surf(void)
 
 unsigned short rand16(void)
 {
-  static int outleft = 0;
-
-  if (!outleft) {
-    if (!++in[0]) if (!++in[1]) if (!++in[2]) ++in[3];
-    surf();
-    outleft = 8;
-  }
-
+  if (!outleft) 
+    {
+      if (!++in[0]) if (!++in[1]) if (!++in[2]) ++in[3];
+      surf();
+      outleft = 8;
+    }
+  
   return (unsigned short) out[--outleft];
 }
 
-#endif
+u64 rand64(void)
+{
+  static int outleft = 0;
+
+  if (outleft < 2)
+    {
+      if (!++in[0]) if (!++in[1]) if (!++in[2]) ++in[3];
+      surf();
+      outleft = 8;
+    }
+  
+  outleft -= 2;
+
+  return (u64)out[outleft+1] + (((u64)out[outleft]) << 32);
+}
 
 static int check_name(char *in)
 {
@@ -108,10 +109,10 @@ static int check_name(char *in)
   
   if (in[l-1] == '.')
     {
-      if (l == 1) return 0;
       in[l-1] = 0;
+      nowhite = 1;
     }
-  
+
   for (; (c = *in); in++)
     {
       if (c == '.')
@@ -457,7 +458,7 @@ int parse_hex(char *in, unsigned char *out, int maxlen,
 		  int j, bytes = (1 + (r - in))/2;
 		  for (j = 0; j < bytes; j++)
 		    { 
-		      char sav;
+		      char sav = sav;
 		      if (j < bytes - 1)
 			{
 			  sav = in[(j+1)*2];

trust-anchors.conf

@@ -0,0 +1,9 @@
+# The root DNSSEC trust anchor, valid as at 30/01/2014
+
+# Note that this is a DS record (ie a hash of the root Zone Signing Key) 
+# If was downloaded from https://data.iana.org/root-anchors/root-anchors.xml
+
+trust-anchor=.,19036,8,2,49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5
+
+
+