dnsmasq: allow using dnsmasq as the sole resolver
[openwrt/openwrt.git] / package / network / services / dnsmasq / files / dnsmasq.init
index 6f5ccfeae4291096b29973167c5348c48ef15494..b119981cb806bf4fdac4727228e631400125678b 100644 (file)
@@ -8,13 +8,19 @@ PROG=/usr/sbin/dnsmasq
 
 ADD_LOCAL_DOMAIN=1
 ADD_LOCAL_HOSTNAME=1
+ADD_WAN_FQDN=0
+ADD_LOCAL_FQDN=""
 
 BASECONFIGFILE="/var/etc/dnsmasq.conf"
 BASEHOSTFILE="/tmp/hosts/dhcp"
-BASETIMESTAMPFILE="/etc/dnsmasq.time"
 TRUSTANCHORSFILE="/usr/share/dnsmasq/trust-anchors.conf"
 TIMEVALIDFILE="/var/state/dnsmasqsec"
 BASEDHCPSTAMPFILE="/var/run/dnsmasq"
+DHCPBOGUSHOSTNAMEFILE="/usr/share/dnsmasq/dhcpbogushostname.conf"
+RFC6761FILE="/usr/share/dnsmasq/rfc6761.conf"
+DHCPSCRIPT="/usr/lib/dnsmasq/dhcp-script.sh"
+
+DNSMASQ_DHCP_VER=4
 
 xappend() {
        local value="$1"
@@ -23,22 +29,22 @@ xappend() {
 }
 
 hex_to_hostid() {
-        local var="$1"
-        local hex="${2#0x}"     # strip optional "0x" prefix
+       local var="$1"
+       local hex="${2#0x}" # strip optional "0x" prefix
 
-        if [ -n "${hex//[0-9a-fA-F]/}" ]; then
-                # is invalid hex literal
-                return 1
-        fi
+       if [ -n "${hex//[0-9a-fA-F]/}" ]; then
+               # is invalid hex literal
+               return 1
+       fi
 
-        # convert into host id
-        export "$var=$(
-                printf "%0x:%0x"  \
-                        $(((0x$hex >> 16) % 65536)) \
-                        $(( 0x$hex        % 256))
-        )"
+       # convert into host id
+       export "$var=$(
+               printf "%0x:%0x" \
+               $(((0x$hex >> 16) % 65536)) \
+               $(( 0x$hex        % 65536))
+               )"
 
-        return 0
+       return 0
 }
 
 dhcp_calc() {
@@ -83,12 +89,24 @@ log_once() {
                logger -t dnsmasq "$@"
 }
 
+has_handler() {
+       local file
+
+       for file in /etc/hotplug.d/dhcp/* /etc/hotplug.d/tftp/* /etc/hotplug.d/neigh/*; do
+               [ -f "$file" ] && return 0
+       done
+
+       return 1
+}
+
 append_bool() {
        local section="$1"
        local option="$2"
        local value="$3"
+       local default="$4"
        local _loctmp
-       config_get_bool _loctmp "$section" "$option" 0
+       [ -z "$default" ] && default="0"
+       config_get_bool _loctmp "$section" "$option" "$default"
        [ $_loctmp -gt 0 ] && xappend "$value"
 }
 
@@ -107,6 +125,10 @@ append_server() {
        xappend "--server=$1"
 }
 
+append_rev_server() {
+        xappend "--rev-server=$1"
+}
+
 append_address() {
        xappend "--address=$1"
 }
@@ -116,12 +138,16 @@ append_ipset() {
 }
 
 append_interface() {
-       network_get_device ifname "$1" || return
+       network_get_device ifname "$1" || ifname="$1"
        xappend "--interface=$ifname"
 }
 
+append_listenaddress() {
+       xappend "--listen-address=$1"
+}
+
 append_notinterface() {
-       network_get_device ifname "$1" || return
+       network_get_device ifname "$1" || ifname="$1"
        xappend "--except-interface=$ifname"
 }
 
@@ -137,6 +163,10 @@ append_pxe_service() {
        xappend "--pxe-service=$1"
 }
 
+append_interface_name() {
+       xappend "--interface-name=$1,$2"
+}
+
 filter_dnsmasq() {
        local cfg="$1" func="$2" match_cfg="$3" found_cfg
 
@@ -180,6 +210,7 @@ dhcp_remoteid_add() {
 }
 
 dhcp_circuitid_add() {
+       # TODO: DHCPV6 does not have circuitid; catch "option6:"
        local cfg="$1"
 
        config_get networkid "$cfg" networkid
@@ -212,6 +243,7 @@ dhcp_userclass_add() {
 }
 
 dhcp_vendorclass_add() {
+       # TODO: DHCPV6 vendor class has stricter definitions; catch? fixup?
        local cfg="$1"
 
        config_get networkid "$cfg" networkid
@@ -245,6 +277,7 @@ dhcp_match_add() {
 
 dhcp_host_add() {
        local cfg="$1"
+       local hosttag nametime addrs duids macs tags
 
        config_get_bool force "$cfg" force 0
 
@@ -256,43 +289,113 @@ dhcp_host_add() {
 
        config_get name "$cfg" name
        config_get ip "$cfg" ip
-       [ -n "$ip" -o -n "$name" ] || return 0
+       config_get hostid "$cfg" hostid
+
+       [ -n "$ip" -o -n "$name" -o -n "$hostid" ] || return 0
 
        config_get_bool dns "$cfg" dns 0
        [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && {
-               echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE
+               echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE_TMP
        }
 
        config_get mac "$cfg" mac
+       config_get duid "$cfg" duid
+       config_get tag "$cfg" tag
+
        if [ -n "$mac" ]; then
                # --dhcp-host=00:20:e0:3b:13:af,192.168.0.199,lap
-               macs=""
+               # many MAC are possible to track a laptop ON/OFF dock
                for m in $mac; do append macs "$m" ","; done
-       else
-               # --dhcp-host=lap,192.168.0.199
+       fi
+
+       if [ $DNSMASQ_DHCP_VER -eq 6 -a -n "$duid" ]; then
+               # --dhcp-host=id:00:03:00:01:12:00:00:01:02:03,[::beef],lap
+               # one (virtual) machine gets one DUID per RFC3315
+               duids="id:${duid// */}"
+       fi
+
+       if [ -z "$macs" -a -z "$duids" ]; then
+               # --dhcp-host=lap,192.168.0.199,[::beef]
                [ -n "$name" ] || return 0
                macs="$name"
                name=""
        fi
 
-       config_get tag "$cfg" tag
+       if [ -n "$hostid" ]; then
+               hex_to_hostid hostid "$hostid"
+       fi
 
-       if [ "$DHCPv6CAPABLE" -eq 1 ]; then
-               config_get hostid "$cfg" hostid
-               if [ -n "$hostid" ]; then
-                       hex_to_hostid hostid "$hostid"
-               fi
+       if [ -n "$tag" ]; then
+               for t in $tag; do append tags "$t" ",set:"; done
        fi
 
        config_get_bool broadcast "$cfg" broadcast 0
-       [ "$broadcast" = "0" ] && broadcast=
-
        config_get leasetime "$cfg" leasetime
 
-       xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip${hostid:+,[::$hostid]}}${name:+,$name}${leasetime:+,$leasetime}"
+       [ "$broadcast" = "0" ] && broadcast= || broadcast=",set:needs-broadcast"
+
+       hosttag="${networkid:+,set:${networkid}}${tags:+,set:${tags}}$broadcast"
+       nametime="${name:+,$name}${leasetime:+,$leasetime}"
+
+       if [ $DNSMASQ_DHCP_VER -eq 6 ]; then
+               addrs="${ip:+,$ip}${hostid:+,[::$hostid]}"
+               xappend "--dhcp-host=$macs${duids:+,$duids}$hosttag$addrs$nametime"
+       else
+               xappend "--dhcp-host=$macs$hosttag${ip:+,$ip}$nametime"
+       fi
+}
+
+dhcp_this_host_add() {
+       local net="$1"
+       local ifname="$2"
+       local mode="$3"
+       local routerstub routername ifdashname
+       local lanaddr lanaddr6 lanaddrs6 ulaprefix
+
+       if [ "$mode" -gt 0 ] ; then
+               ifdashname="${ifname//./-}"
+               routerstub="$( md5sum /etc/os-release )"
+               routerstub="router-${routerstub// */}"
+               routername="$( uci_get system @system[0] hostname $routerstub )"
+
+               if [ "$mode" -gt 1 ] ; then
+                       if [ "$mode" -gt 2 ] ; then
+                               if [ "$mode" -gt 3 ] ; then
+                                       append_interface_name "$ifdashname.$routername.$DOMAIN" "$ifname"
+                               fi
+
+                               append_interface_name "$routername.$DOMAIN" "$ifname"
+                       fi
+
+                       # All IP addresses discovered by dnsmasq will be labeled (except fe80::)
+                       append_interface_name "$routername" "$ifname"
+
+               else
+                       # This uses a static host file entry for only limited addresses.
+                       # Use dnsmasq option "--expandhosts" to enable FQDN on host files.
+                       ulaprefix="$(uci_get network @globals[0] ula_prefix)"
+                       network_get_ipaddr lanaddr "$net"
+                       network_get_ipaddrs6 lanaddrs6 "$net"
+
+                       if [ -n "$lanaddr" ] ; then
+                               dhcp_domain_add "" "$routername" "$lanaddr"
+                       fi
+
+                       if [ -n "$ulaprefix" -a -n "$lanaddrs6" ] ; then
+                               for lanaddr6 in $lanaddrs6 ; do
+                                       case "$lanaddr6" in
+                                       "${ulaprefix%%:/*}"*)
+                                               dhcp_domain_add "" "$routername" "$lanaddr6"
+                                               ;;
+                                       esac
+                               done
+                       fi
+               fi
+       fi
 }
 
 dhcp_tag_add() {
+       # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
        local cfg="$1"
 
        tag="$cfg"
@@ -323,6 +426,7 @@ dhcp_mac_add() {
 }
 
 dhcp_boot_add() {
+       # TODO: BOOTURL is different between DHCPv4 and DHCPv6
        local cfg="$1"
 
        config_get networkid "$cfg" networkid
@@ -345,24 +449,30 @@ dhcp_boot_add() {
 
 dhcp_add() {
        local cfg="$1"
+       local dhcp6range="::"
+       local nettag
+       local tags
+
        config_get net "$cfg" interface
        [ -n "$net" ] || return 0
 
-       config_get dhcpv4 "$cfg" dhcpv4
-       [ "$dhcpv4" != "disabled" ] || return 0
-
        config_get networkid "$cfg" networkid
        [ -n "$networkid" ] || networkid="$net"
 
-       network_get_subnet subnet "$net" || return 0
        network_get_device ifname "$net" || return 0
-       network_get_protocol proto "$net" || return 0
 
        [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver "$net" && {
                DNS_SERVERS="$DNS_SERVERS $dnsserver"
        }
 
-       append_bool "$cfg" ignore "--no-dhcp-interface=$ifname" && return 0
+       append_bool "$cfg" ignore "--no-dhcp-interface=$ifname" && {
+               # Many ISP do not have useful names for DHCP customers (your WAN).
+               dhcp_this_host_add "$net" "$ifname" "$ADD_WAN_FQDN"
+               return 0
+       }
+
+       network_get_subnet subnet "$net" || return 0
+       network_get_protocol proto "$net" || return 0
 
        # Do not support non-static interfaces for now
        [ static = "$proto" ] || return 0
@@ -374,35 +484,142 @@ dhcp_add() {
        config_get_bool force "$cfg" force 0
        [ $force -gt 0 ] || dhcp_check "$ifname" || return 0
 
-       config_get start "$cfg" start
-       config_get limit "$cfg" limit
-       config_get leasetime "$cfg" leasetime
+       config_get start "$cfg" start 100
+       config_get limit "$cfg" limit 150
+       config_get leasetime "$cfg" leasetime 12h
        config_get options "$cfg" options
        config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
 
-       leasetime="${leasetime:-12h}"
-       start="$(dhcp_calc "${start:-100}")"
-       limit="${limit:-150}"
-       [ "$limit" -gt 0 ] && limit=$((limit-1))
+       config_get dhcpv4 "$cfg" dhcpv4
+       config_get dhcpv6 "$cfg" dhcpv6
+
+       config_get ra "$cfg" ra
+       config_get ra_management "$cfg" ra_management
+       config_get ra_preference "$cfg" ra_preference
+       config_get dns "$cfg" dns
+
+       config_list_foreach "$cfg" "interface_name" append_interface_name "$ifname"
+
+       # Put the router host name on this DHCP served interface address(es)
+       dhcp_this_host_add "$net" "$ifname" "$ADD_LOCAL_FQDN"
+
+       start="$( dhcp_calc "$start" )"
+
+       add_tag() {
+               tags="${tags}tag:$1,"
+       }
+       config_list_foreach "$cfg" tag add_tag
+
+       nettag="${networkid:+set:${networkid},}"
+
+       if [ "$limit" -gt 0 ] ; then
+               limit=$((limit-1))
+       fi
+
        eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
-       if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
-       xappend "--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
 
-       dhcp_option_add "$cfg" "$networkid"
+       if [ "$dynamicdhcp" = "0" ] ; then
+               END="static"
+               dhcp6range="::,static"
+       else
+               dhcp6range="::1000,::ffff"
+       fi
+
+
+       if [ "$dhcpv4" != "disabled" ] ; then
+               xappend "--dhcp-range=$tags$nettag$START,$END,$NETMASK,$leasetime${options:+ $options}"
+       fi
+
+
+       if [ $DNSMASQ_DHCP_VER -eq 6 -a "$ra" = "server" ] ; then
+               # Note: dnsmasq cannot just be a DHCPv6 server (all-in-1)
+               # and let some other machine(s) send RA pointing to it.
+
+               case $ra_preference in
+               *high*)
+                       xappend "--ra-param=$ifname,high,0,7200"
+                       ;;
+               *low*)
+                       xappend "--ra-param=$ifname,low,0,7200"
+                       ;;
+               *)
+                       # Send UNSOLICITED RA at default interval and live for 2 hours.
+                       # TODO: convert flexible lease time into route life time (only seconds).
+                       xappend "--ra-param=$ifname,0,7200"
+                       ;;
+               esac
+
+               if [ "$dhcpv6" = "disabled" ] ; then
+                       ra_management="3"
+               fi
+
+
+               case $ra_management in
+               0)
+                       # SLACC with DCHP for extended options
+                       xappend "--dhcp-range=$nettag::,constructor:$ifname,ra-stateless,ra-names"
+                       ;;
+               2)
+                       # DHCP address and RA only for management redirection
+                       xappend "--dhcp-range=$nettag$dhcp6range,constructor:$ifname,$leasetime"
+                       ;;
+               3)
+                       # SLAAC only but dnsmasq attempts to link HOSTNAME, DHCPv4 MAC, and SLAAC
+                       xappend "--dhcp-range=$nettag::,constructor:$ifname,ra-only,ra-names"
+                       ;;
+               *)
+                       # SLAAC and full DHCP
+                       xappend "--dhcp-range=$nettag$dhcp6range,constructor:$ifname,slaac,ra-names,$leasetime"
+                       ;;
+               esac
+
+               if [ -n "$dns" ]; then
+                       dnss=""
+                       for d in $dns; do append dnss "[$d]" ","; done
+               else
+                       dnss="[::]"
+               fi
+
+               dhcp_option_append "option6:dns-server,$dnss" "$networkid"
+       fi
+
+       dhcp_option_add "$cfg" "$networkid" 0
+       dhcp_option_add "$cfg" "$networkid" 2
+}
+
+dhcp_option_append() {
+       local option="$1"
+       local networkid="$2"
+       local force="$3"
+
+       xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$option"
 }
 
 dhcp_option_add() {
+       # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
        local cfg="$1"
        local networkid="$2"
        local force="$3"
+       local opt="dhcp_option"
 
        [ "$force" = "0" ] && force=
+       [ "$force" = "2" ] && opt="dhcp_option_force"
 
-       config_get dhcp_option "$cfg" dhcp_option
-       for o in $dhcp_option; do
-               xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
-       done
+       local list_len
+       config_get list_len "$cfg" "${opt}_LENGTH"
+
+       if [ -n "$list_len" ]; then
+               config_list_foreach "$cfg" "$opt" dhcp_option_append "$networkid" "$force"
+       else
+               config_get dhcp_option "$cfg" "$opt"
+
+               [ -n "$dhcp_option" ] && echo "Warning: the 'option $opt' syntax is deprecated, use 'list $opt'" >&2
 
+               local option
+               for option in $dhcp_option; do
+                       dhcp_option_append "$option" "$networkid" "$force"
+               done
+       fi
 }
 
 dhcp_domain_add() {
@@ -419,7 +636,7 @@ dhcp_domain_add() {
                record="${record:+$record }$name"
        done
 
-       echo "$ip $record" >> $HOSTFILE
+       echo "$ip $record" >> $HOSTFILE_TMP
 }
 
 dhcp_srv_add() {
@@ -507,13 +724,16 @@ dhcp_relay_add() {
        if [ -z "$interface" ]; then
                xappend "--dhcp-relay=$local_addr,$server_addr"
        else
-               xappend "--dhcp-relay=$local_addr,$server_addr,$interface"
+               network_get_device ifname "$interface" || return
+               xappend "--dhcp-relay=$local_addr,$server_addr,$ifname"
        fi
 }
 
 dnsmasq_start()
 {
-       local cfg="$1" disabled
+       local cfg="$1"
+       local disabled user_dhcpscript
+       local resolvfile localuse
 
        config_get_bool disabled "$cfg" disabled 0
        [ "$disabled" -gt 0 ] && return 0
@@ -524,7 +744,7 @@ dnsmasq_start()
        CONFIGFILE="${BASECONFIGFILE}.${cfg}"
        CONFIGFILE_TMP="${CONFIGFILE}.$$"
        HOSTFILE="${BASEHOSTFILE}.${cfg}"
-       TIMESTAMPFILE="${BASETIMESTAMPFILE}.${cfg}"
+       HOSTFILE_TMP="${HOSTFILE}.$$"
        BASEDHCPSTAMPFILE_CFG="${BASEDHCPSTAMPFILE}.${cfg}"
 
        # before we can call xappend
@@ -534,18 +754,56 @@ dnsmasq_start()
        mkdir -p /var/lib/misc
        chown dnsmasq:dnsmasq /var/run/dnsmasq
 
-       [ -f "$TIMESTAMPFILE" ] && rm -f "$TIMESTAMPFILE"
-
        echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE_TMP
-       echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE
+       echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE_TMP
+
+       local dnsmasqconffile="/etc/dnsmasq.${cfg}.conf"
+       if [ ! -r "$dnsmasqconffile" ]; then
+               dnsmasqconffile=/etc/dnsmasq.conf
+       fi
 
        # if we did this last, we could override auto-generated config
-       [ -f /etc/dnsmasq.conf ] && {
-               xappend "--conf-file=/etc/dnsmasq.conf"
+       [ -f "${dnsmasqconffile}" ] && {
+               xappend "--conf-file=${dnsmasqconffile}"
        }
 
        $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE=1 || DHCPv6CAPABLE=0
 
+
+       if [ -x /usr/sbin/odhcpd -a -x /etc/init.d/odhcpd ] ; then
+               local odhcpd_is_main odhcpd_is_enabled
+               config_get odhcpd_is_main odhcpd maindhcp 0
+               /etc/init.d/odhcpd enabled && odhcpd_is_enabled=1 || odhcpd_is_enabled=0
+
+
+               if [ "$odhcpd_is_enabled" -eq 0 -a "$DHCPv6CAPABLE" -eq 1 ] ; then
+                       # DHCP V4 and V6 in DNSMASQ
+                       DNSMASQ_DHCP_VER=6
+               elif [ "$odhcpd_is_main" -gt 0 ] ; then
+                       # ODHCPD is doing it all
+                       DNSMASQ_DHCP_VER=0
+               else
+                       # You have ODHCPD but use DNSMASQ for DHCPV4
+                       DNSMASQ_DHCP_VER=4
+               fi
+
+       elif [ "$DHCPv6CAPABLE" -eq 1 ] ; then
+               # DHCP V4 and V6 in DNSMASQ
+               DNSMASQ_DHCP_VER=6
+       else
+               DNSMASQ_DHCP_VER=4
+       fi
+
+       # Allow DHCP/DHCPv6 to be handled by ISC DHCPD
+       if [ -x /usr/sbin/dhcpd ] ; then
+               if [ -x /etc/init.d/dhcpd ] ; then
+                       /etc/init.d/dhcpd enabled && DNSMASQ_DHCP_VER=0
+               fi
+               if [ -x /etc/init.d/dhcpd6 -a "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
+                       /etc/init.d/dhcpd6 enabled && DNSMASQ_DHCP_VER=4
+               fi
+       fi
+
        append_bool "$cfg" authoritative "--dhcp-authoritative"
        append_bool "$cfg" nodaemon "--no-daemon"
        append_bool "$cfg" domainneeded "--domain-needed"
@@ -558,21 +816,23 @@ dnsmasq_start()
        append_bool "$cfg" localise_queries "--localise-queries"
        append_bool "$cfg" readethers "--read-ethers"
        append_bool "$cfg" dbus "--enable-dbus"
-       append_bool "$cfg" boguspriv "--bogus-priv"
+       append_bool "$cfg" ubus "--enable-ubus" 1
        append_bool "$cfg" expandhosts "--expand-hosts"
        config_get tftp_root "$cfg" "tftp_root"
-       [ -d "$tftp_root" ] && append_bool "$cfg" enable_tftp "--enable-tftp"
+       [ -n "$tftp_root" ] && mkdir -p "$tftp_root" && append_bool "$cfg" enable_tftp "--enable-tftp"
        append_bool "$cfg" tftp_no_fail "--tftp-no-fail"
-       append_bool "$cfg" nonwildcard "--bind-dynamic"
+       append_bool "$cfg" nonwildcard "--bind-dynamic" 1
        append_bool "$cfg" fqdn "--dhcp-fqdn"
        append_bool "$cfg" proxydnssec "--proxy-dnssec"
        append_bool "$cfg" localservice "--local-service"
+       append_bool "$cfg" logdhcp "--log-dhcp"
        append_bool "$cfg" quietdhcp "--quiet-dhcp"
        append_bool "$cfg" sequential_ip "--dhcp-sequential-ip"
        append_bool "$cfg" allservers "--all-servers"
        append_bool "$cfg" noping "--no-ping"
 
-       append_parm "$cfg" dhcpscript "--dhcp-script"
+       append_parm "$cfg" logfacility "--log-facility"
+
        append_parm "$cfg" cachesize "--cache-size"
        append_parm "$cfg" dnsforwardmax "--dns-forward-max"
        append_parm "$cfg" port "--port"
@@ -583,15 +843,18 @@ dnsmasq_start()
        append_parm "$cfg" "maxport" "--max-port"
        append_parm "$cfg" "domain" "--domain"
        append_parm "$cfg" "local" "--server"
+       config_list_foreach "$cfg" "listen_address" append_listenaddress
        config_list_foreach "$cfg" "server" append_server
+       config_list_foreach "$cfg" "rev_server" append_rev_server
        config_list_foreach "$cfg" "address" append_address
        config_list_foreach "$cfg" "ipset" append_ipset
-       config_list_foreach "$cfg" "interface" append_interface
-       config_list_foreach "$cfg" "notinterface" append_notinterface
+       [ -n "$BOOT" ] || {
+               config_list_foreach "$cfg" "interface" append_interface
+               config_list_foreach "$cfg" "notinterface" append_notinterface
+       }
        config_list_foreach "$cfg" "addnhosts" append_addnhosts
        config_list_foreach "$cfg" "bogusnxdomain" append_bogusnxdomain
        append_parm "$cfg" "leasefile" "--dhcp-leasefile" "/tmp/dhcp.leases"
-       append_parm "$cfg" "resolvfile" "--resolv-file" "/tmp/resolv.conf.auto"
        append_parm "$cfg" "serversfile" "--servers-file"
        append_parm "$cfg" "tftp_root" "--tftp-root"
        append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
@@ -602,22 +865,30 @@ dnsmasq_start()
 
        config_get_bool ADD_LOCAL_DOMAIN "$cfg" add_local_domain 1
        config_get_bool ADD_LOCAL_HOSTNAME "$cfg" add_local_hostname 1
+       config_get ADD_LOCAL_FQDN "$cfg" add_local_fqdn ""
+       config_get ADD_WAN_FQDN "$cfg" add_wan_fqdn 0
 
-       config_get_bool readethers "$cfg" readethers
-       [ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
+       if [ -z "$ADD_LOCAL_FQDN" ] ; then
+               # maintain support for previous UCI
+               ADD_LOCAL_FQDN="$ADD_LOCAL_HOSTNAME"
+       fi
 
-       config_get resolvfile $cfg resolvfile
-       config_get dhcpscript $cfg dhcpscript
+       config_get user_dhcpscript $cfg dhcpscript
+       if has_handler || [ -n "$user_dhcpscript" ]; then
+               xappend "--dhcp-script=$DHCPSCRIPT"
+       fi
 
        config_get leasefile $cfg leasefile "/tmp/dhcp.leases"
        [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
        config_get_bool cachelocal "$cfg" cachelocal 1
 
        config_get_bool noresolv "$cfg" noresolv 0
+       config_get_bool localuse "$cfg" localuse 0
        if [ "$noresolv" != "1" ]; then
-               config_get resolvfile "$cfg" resolvfile "/tmp/resolv.conf.auto"
-               # So jail doesn't complain if file missing
-               [ -n "$resolvfile" -a \! -e "$resolvfile" ] && touch "$resolvfile"
+               config_get resolvfile "$cfg" resolvfile /tmp/resolv.conf.auto
+               [ -n "$resolvfile" -a ! -e "$resolvfile" ] && touch "$resolvfile"
+               xappend "--resolv-file=$resolvfile"
+               [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && localuse=1
        fi
 
        config_get hostsfile "$cfg" dhcphostsfile
@@ -659,15 +930,23 @@ dnsmasq_start()
                append_bool "$cfg" dnsseccheckunsigned "--dnssec-check-unsigned"
        }
 
+       config_get addmac "$cfg" addmac 0
+       [ "$addmac" != "0" ] && {
+               [ "$addmac" = "1" ] && addmac=
+               xappend "--add-mac${addmac:+="$addmac"}"
+       }
+
        dhcp_option_add "$cfg" "" 0
+       dhcp_option_add "$cfg" "" 2
 
        xappend "--dhcp-broadcast=tag:needs-broadcast"
 
-       xappend "--addn-hosts=$HOSTFILE"
+       xappend "--addn-hosts=$(dirname $HOSTFILE)"
 
        config_get dnsmasqconfdir "$cfg" confdir "/tmp/dnsmasq.d"
-       [ ! -d "$dnsmasqconfdir" ] && mkdir -p $dnsmasqconfdir
        xappend "--conf-dir=$dnsmasqconfdir"
+       dnsmasqconfdir="${dnsmasqconfdir%%,*}"
+       [ ! -d "$dnsmasqconfdir" ] && mkdir -p $dnsmasqconfdir
        xappend "--user=dnsmasq"
        xappend "--group=dnsmasq"
        echo >> $CONFIGFILE_TMP
@@ -680,6 +959,13 @@ dnsmasq_start()
 
        config_foreach filter_dnsmasq host dhcp_host_add "$cfg"
        echo >> $CONFIGFILE_TMP
+
+       config_get_bool dhcpbogushostname "$cfg" dhcpbogushostname 1
+       [ "$dhcpbogushostname" -gt 0 ] && {
+               xappend "--dhcp-ignore-names=tag:dhcp_bogus_hostname"
+               [ -r "$DHCPBOGUSHOSTNAMEFILE" ] && xappend "--conf-file=$DHCPBOGUSHOSTNAMEFILE"
+       }
+
        config_foreach filter_dnsmasq boot dhcp_boot_add "$cfg"
        config_foreach filter_dnsmasq mac dhcp_mac_add "$cfg"
        config_foreach filter_dnsmasq tag dhcp_tag_add "$cfg"
@@ -691,47 +977,42 @@ dnsmasq_start()
        config_foreach filter_dnsmasq match dhcp_match_add "$cfg"
        config_foreach filter_dnsmasq domain dhcp_domain_add "$cfg"
        config_foreach filter_dnsmasq hostrecord dhcp_hostrecord_add "$cfg"
-       config_foreach filter_dnsmasq relay dhcp_relay_add "$cfg"
-
-       # add own hostname
-       [ $ADD_LOCAL_HOSTNAME -eq 1 ] && {
-               local lanaddr lanaddr6
-               local ulaprefix="$(uci_get network @globals[0] ula_prefix)"
-               local hostname="$(uci_get system @system[0] hostname Lede)"
-
-               network_get_ipaddr lanaddr "lan" && {
-                       dhcp_domain_add "" "$hostname" "$lanaddr"
-               }
-
-               [ -n "$ulaprefix" ] && network_get_ipaddrs6 lanaddr6 "lan" && {
-                       for lanaddr6 in $lanaddr6; do
-                               case "$lanaddr6" in
-                                       "${ulaprefix%%:/*}"*)
-                                               dhcp_domain_add "" "$hostname" "$lanaddr6"
-                                       ;;
-                               esac
-                       done
-               }
-       }
+       [ -n "$BOOT" ] || config_foreach filter_dnsmasq relay dhcp_relay_add "$cfg"
 
        echo >> $CONFIGFILE_TMP
        config_foreach filter_dnsmasq srvhost dhcp_srv_add "$cfg"
        config_foreach filter_dnsmasq mxhost dhcp_mx_add "$cfg"
        echo >> $CONFIGFILE_TMP
 
-       config_get odhcpd_is_active odhcpd maindhcp
-       if [ "$odhcpd_is_active" != "1" ]; then
-               config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
+       config_get_bool boguspriv "$cfg" boguspriv 1
+       [ "$boguspriv" -gt 0 ] && {
+               xappend "--bogus-priv"
+               [ -r "$RFC6761FILE" ] && xappend "--conf-file=$RFC6761FILE"
+       }
+
+       if [ "$DNSMASQ_DHCP_VER" -gt 4 ] ; then
+               # Enable RA feature for when/if it is constructed,
+               # and RA is selected per interface pool (RA, DHCP, or both),
+               # but no one (should) want RA broadcast in syslog
+               [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
+               xappend "--enable-ra"
+               xappend "--quiet-ra"
+               append_bool "$cfg" quietdhcp "--quiet-dhcp6"
+
+       elif [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
+               [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
        fi
 
+
        echo >> $CONFIGFILE_TMP
        config_foreach filter_dnsmasq cname dhcp_cname_add "$cfg"
        echo >> $CONFIGFILE_TMP
 
        echo >> $CONFIGFILE_TMP
        mv -f $CONFIGFILE_TMP $CONFIGFILE
+       mv -f $HOSTFILE_TMP $HOSTFILE
 
-       [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && {
+       [ "$localuse" -gt 0 ] && {
                rm -f /tmp/resolv.conf
                [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
                        echo "search $DOMAIN" >> /tmp/resolv.conf
@@ -745,15 +1026,11 @@ dnsmasq_start()
        procd_open_instance $cfg
        procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq."${cfg}".pid
        procd_set_param file $CONFIGFILE
+       [ -n "$user_dhcpscript" ] && procd_set_param env USER_DHCPSCRIPT="$user_dhcpscript"
        procd_set_param respawn
 
-       local dnsmasqconffile="/etc/dnsmasq.${cfg}.conf"
-       if [ ! -r "$dnsmasqconffile" ]; then
-               dnsmasqconffile=/etc/dnsmasq.conf
-       fi
-
        procd_add_jail dnsmasq ubus log
-       procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvfile $dhcpscript /etc/hosts /etc/ethers $EXTRA_MOUNT
+       procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE $RFC6761FILE $DHCPBOGUSHOSTNAMEFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvfile $user_dhcpscript /etc/hosts /etc/ethers /sbin/hotplug-call $EXTRA_MOUNT $DHCPSCRIPT
        procd_add_jail_mount_rw /var/run/dnsmasq/ $leasefile
 
        procd_close_instance
@@ -762,24 +1039,35 @@ dnsmasq_start()
 dnsmasq_stop()
 {
        local cfg="$1"
+       local noresolv resolvfile localuse
 
+       config_get_bool noresolv "$cfg" noresolv 0
+       config_get_bool localuse "$cfg" localuse 0
        config_get resolvfile "$cfg" "resolvfile"
 
-       #relink /tmp/resolve.conf only for main instance
-       [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && {
-               [ -f /tmp/resolv.conf ] && {
-                       rm -f /tmp/resolv.conf
-                       ln -s "$resolvfile" /tmp/resolv.conf
-               }
-       }
+       [ "$noresolv" = 0 -a "$resolvfile" = "/tmp/resolv.conf.auto" ] && localuse=1
+       [ "$localuse" -gt 0 ] && ln -sf "/tmp/resolv.conf.auto" /tmp/resolv.conf
 
        rm -f ${BASEDHCPSTAMPFILE}.${cfg}.*.dhcp
 }
 
+add_interface_trigger()
+{
+       local interface ignore
+
+       config_get interface "$1" interface
+       config_get_bool ignore "$1" ignore 0
+
+       [ -n "$interface" -a $ignore -eq 0 ] && procd_add_interface_trigger "interface.*" "$interface" /etc/init.d/dnsmasq reload
+}
+
 service_triggers()
 {
-       procd_add_reload_trigger "dhcp"
-       procd_add_raw_trigger "interface.*" 2000 /etc/init.d/dnsmasq reload
+       procd_add_reload_trigger "dhcp" "system"
+
+       config_load dhcp
+       config_foreach add_interface_trigger dhcp
+       config_foreach add_interface_trigger relay
 }
 
 boot()
@@ -792,8 +1080,6 @@ start_service() {
        local instance="$1"
        local instance_found=0
 
-       [ -n "$BOOT" ] && return
-
        . /lib/functions/network.sh
 
        config_cb() {
@@ -818,7 +1104,7 @@ start_service() {
 
 reload_service() {
        rc_procd start_service "$@"
-       return 0
+       procd_send_signal dnsmasq "$@"
 }
 
 stop_service() {