dnsmasq: restore ability to include/exclude raw device names
[openwrt/openwrt.git] / package / network / services / dnsmasq / files / dnsmasq.init
index 40c756b4382ea9dd496c7f2fc33def23489b93d6..6f985b2417c10c311e232e63bdc4dfc5766d5b98 100644 (file)
@@ -17,6 +17,8 @@ BASETIMESTAMPFILE="/etc/dnsmasq.time"
 TRUSTANCHORSFILE="/usr/share/dnsmasq/trust-anchors.conf"
 TIMEVALIDFILE="/var/state/dnsmasqsec"
 BASEDHCPSTAMPFILE="/var/run/dnsmasq"
+RFC6761FILE="/usr/share/dnsmasq/rfc6761.conf"
+DHCPSCRIPT="/usr/lib/dnsmasq/dhcp-script.sh"
 
 DNSMASQ_DHCP_VER=4
 
@@ -87,12 +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"
 }
 
@@ -111,6 +125,10 @@ append_server() {
        xappend "--server=$1"
 }
 
+append_rev_server() {
+        xappend "--rev-server=$1"
+}
+
 append_address() {
        xappend "--address=$1"
 }
@@ -120,12 +138,12 @@ append_ipset() {
 }
 
 append_interface() {
-       network_get_device ifname "$1" || return
+       network_get_device ifname "$1" || ifname="$1"
        xappend "--interface=$ifname"
 }
 
 append_notinterface() {
-       network_get_device ifname "$1" || return
+       network_get_device ifname "$1" || ifname="$1"
        xappend "--except-interface=$ifname"
 }
 
@@ -141,6 +159,10 @@ 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
 
@@ -251,7 +273,7 @@ dhcp_match_add() {
 
 dhcp_host_add() {
        local cfg="$1"
-       local hosttag nametime addrs
+       local hosttag nametime addrs duids
 
        config_get_bool force "$cfg" force 0
 
@@ -332,14 +354,14 @@ dhcp_this_host_add() {
                if [ "$mode" -gt 1 ] ; then
                        if [ "$mode" -gt 2 ] ; then
                                if [ "$mode" -gt 3 ] ; then
-                                       xappend "--interface-name=$ifdashname.$routername.$DOMAIN,$ifname"
+                                       append_interface_name "$ifdashname.$routername.$DOMAIN" "$ifname"
                                fi
 
-                               xappend "--interface-name=$routername.$DOMAIN,$ifname"
+                               append_interface_name "$routername.$DOMAIN" "$ifname"
                        fi
 
                        # All IP addresses discovered by dnsmasq will be labeled (except fe80::)
-                       xappend "--interface-name=$routername,$ifname"
+                       append_interface_name "$routername" "$ifname"
 
                else
                        # This uses a static host file entry for only limited addresses.
@@ -422,6 +444,7 @@ dhcp_add() {
        local cfg="$1"
        local dhcp6range="::"
        local nettag
+       local tags
 
        config_get net "$cfg" interface
        [ -n "$net" ] || return 0
@@ -465,11 +488,20 @@ dhcp_add() {
        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
@@ -487,7 +519,7 @@ dhcp_add() {
 
 
        if [ "$dhcpv4" != "disabled" ] ; then
-               xappend "--dhcp-range=$nettag$START,$END,$NETMASK,$leasetime${options:+ $options}"
+               xappend "--dhcp-range=$tags$nettag$START,$END,$NETMASK,$leasetime${options:+ $options}"
        fi
 
 
@@ -532,11 +564,28 @@ dhcp_add() {
                        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"
 }
 
+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"
@@ -545,11 +594,21 @@ dhcp_option_add() {
 
        [ "$force" = "0" ] && 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" dhcp_option_LENGTH
+
+       if [ -n "$list_len" ]; then
+               config_list_foreach "$cfg" dhcp_option dhcp_option_append "$networkid" "$force"
+       else
+               config_get dhcp_option "$cfg" dhcp_option
+
+               [ -n "$dhcp_option" ] && echo "Warning: the 'option dhcp_option' syntax is deprecated, use 'list dhcp_option'" >&2
 
+               local option
+               for option in $dhcp_option; do
+                       dhcp_option_append "$option" "$networkid" "$force"
+               done
+       fi
 }
 
 dhcp_domain_add() {
@@ -654,13 +713,14 @@ 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" disabled resolvfile user_dhcpscript
 
        config_get_bool disabled "$cfg" disabled 0
        [ "$disabled" -gt 0 ] && return 0
@@ -696,7 +756,7 @@ dnsmasq_start()
 
        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
+               config_get odhcpd_is_main odhcpd maindhcp 0
                /etc/init.d/odhcpd enabled && odhcpd_is_enabled=1 || odhcpd_is_enabled=0
 
 
@@ -718,6 +778,15 @@ dnsmasq_start()
                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"
@@ -731,12 +800,11 @@ 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 "$cfg" expandhosts "--expand-hosts"
        config_get tftp_root "$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 "$cfg" localservice "--local-service"
@@ -747,7 +815,7 @@ dnsmasq_start()
        append_bool "$cfg" noping "--no-ping"
 
        append_parm "$cfg" logfacility "--log-facility"
-       append_parm "$cfg" dhcpscript "--dhcp-script"
+
        append_parm "$cfg" cachesize "--cache-size"
        append_parm "$cfg" dnsforwardmax "--dns-forward-max"
        append_parm "$cfg" port "--port"
@@ -759,6 +827,7 @@ dnsmasq_start()
        append_parm "$cfg" "domain" "--domain"
        append_parm "$cfg" "local" "--server"
        config_list_foreach "$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
@@ -766,7 +835,6 @@ dnsmasq_start()
        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 "$cfg" "dhcp_boot" "--dhcp-boot"
@@ -788,8 +856,10 @@ dnsmasq_start()
        config_get_bool readethers "$cfg" readethers
        [ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
 
-       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"
@@ -802,6 +872,8 @@ dnsmasq_start()
                [ -n "$resolvfile" -a \! -e "$resolvfile" ] && touch "$resolvfile"
        fi
 
+       [ -n "$resolvfile" ] && xappend "--resolv-file=$resolvfile"
+
        config_get hostsfile "$cfg" dhcphostsfile
        [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
 
@@ -886,17 +958,23 @@ dnsmasq_start()
        config_foreach filter_dnsmasq mxhost dhcp_mx_add "$cfg"
        echo >> $CONFIGFILE_TMP
 
+       config_get_bool boguspriv "$cfg" boguspriv 1
+       [ "$boguspriv" -gt 0 ] && {
+               xappend "--bogus-priv"
+               [ -r "$RFC6761FILE" ] && xappend "--conf-file=$RFC6761FILE"
+       }
 
        if [ "$DNSMASQ_DHCP_VER" -gt 4 ] ; then
                # Enable RA feature for when/if it is constructed,
                # and RA is selected per interface pool (RA, DHCP, or both),
                # but no one (should) want RA broadcast in syslog
-               config_foreach dhcp_add dhcp
+               config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
                xappend "--enable-ra"
                xappend "--quiet-ra"
+               append_bool "$cfg" quietdhcp "--quiet-dhcp6"
 
        elif [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
-               config_foreach dhcp_add dhcp
+               config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
        fi
 
 
@@ -921,6 +999,7 @@ 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"
@@ -929,7 +1008,7 @@ dnsmasq_start()
        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 /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