dnsmasq: always inform about disabled dhcp service
[openwrt/staging/wigyori.git] / package / network / services / dnsmasq / files / dnsmasq.init
index de155524242e0bd2600fb82f645bec5242966114..9288971426ae6146509e046e34391f1082b807ad 100644 (file)
@@ -16,15 +16,51 @@ BASEHOSTFILE="/tmp/hosts/dhcp"
 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
 
+dnsmasq_ignore_opt() {
+       local opt="$1"
+
+       if [ -z "$dnsmasq_features" ]; then
+               dnsmasq_features="$(dnsmasq --version | grep -m1 'Compile time options:' | cut -d: -f2) "
+               [ "${dnsmasq_features#* DHCP }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp=1
+               [ "${dnsmasq_features#* DHCPv6 }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp6=1
+               [ "${dnsmasq_features#* DNSSEC }" = "$dnsmasq_features" ] || dnsmasq_has_dnssec=1
+               [ "${dnsmasq_features#* TFTP }" = "$dnsmasq_features" ] || dnsmasq_has_tftp=1
+               [ "${dnsmasq_features#* ipset }" = "$dnsmasq_features" ] || dnsmasq_has_ipset=1
+       fi
+
+       case "$opt" in
+               dhcp-duid|\
+               ra-param)
+                       [ -z "$dnsmasq_has_dhcp6" ] ;;
+               dhcp-*|\
+               bootp-*|\
+               pxe-*)
+                       [ -z "$dnsmasq_has_dhcp" ] ;;
+               dnssec-*|\
+               trust-anchor)
+                       [ -z "$dnsmasq_has_dnssec" ] ;;
+               tftp-*)
+                       [ -z "$dnsmasq_has_tftp" ] ;;
+               ipset)
+                       [ -z "$dnsmasq_has_ipset" ] ;;
+               *)
+                       return 1
+       esac
+}
+
 xappend() {
-       local value="$1"
+       local value="${1#--}"
+       local opt="${value%%=*}"
 
-       echo "${value#--}" >> $CONFIGFILE_TMP
+       if ! dnsmasq_ignore_opt "$opt"; then
+               echo "$value" >>$CONFIGFILE_TMP
+       fi
 }
 
 hex_to_hostid() {
@@ -74,11 +110,6 @@ dhcp_check() {
 
        udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0
 
-       [ $rv -eq 1 ] && \
-               logger -t dnsmasq \
-                       "found already running DHCP-server on interface '$ifname'" \
-                       "refusing to start, use 'option force 1' to override"
-
        echo $rv > "$stamp"
        return $rv
 }
@@ -171,7 +202,7 @@ filter_dnsmasq() {
 
        # use entry when no instance entry set, or if it matches
        config_get found_cfg "$cfg" "instance"
-       if [ -z "$found_cfg" -o "$found_cfg" = "$match_cfg" ]; then
+       if [ -z "$found_cfg" ] || [ "$found_cfg" = "$match_cfg" ]; then
                $func $cfg
        fi
 }
@@ -290,10 +321,10 @@ dhcp_host_add() {
        config_get ip "$cfg" ip
        config_get hostid "$cfg" hostid
 
-       [ -n "$ip" -o -n "$name" -o -n "$hostid" ] || return 0
+       [ -z "$ip" ] && [ -z "$name" ] && [ -z "$hostid" ] && return 0
 
        config_get_bool dns "$cfg" dns 0
-       [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && {
+       [ "$dns" = "1" ] && [ -n "$ip" ] && [ -n "$name" ] && {
                echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE_TMP
        }
 
@@ -307,13 +338,13 @@ dhcp_host_add() {
                for m in $mac; do append macs "$m" ","; done
        fi
 
-       if [ $DNSMASQ_DHCP_VER -eq 6 -a -n "$duid" ]; then
+       if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ -n "$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
+       if [ -z "$macs" ] && [ -z "$duids" ]; then
                # --dhcp-host=lap,192.168.0.199,[::beef]
                [ -n "$name" ] || return 0
                macs="$name"
@@ -380,7 +411,7 @@ dhcp_this_host_add() {
                                dhcp_domain_add "" "$routername" "$lanaddr"
                        fi
 
-                       if [ -n "$ulaprefix" -a -n "$lanaddrs6" ] ; then
+                       if [ -n "$ulaprefix" ] && [ -n "$lanaddrs6" ] ; then
                                for lanaddr6 in $lanaddrs6 ; do
                                        case "$lanaddr6" in
                                        "${ulaprefix%%:/*}"*)
@@ -436,7 +467,7 @@ dhcp_boot_add() {
        config_get servername "$cfg" servername
        config_get serveraddress "$cfg" serveraddress
 
-       [ -n "$serveraddress" -a ! -n "$servername" ] && return 0
+       [ -n "$serveraddress" ] && [ ! -n "$servername" ] && return 0
 
        xappend "--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}"
 
@@ -481,7 +512,12 @@ dhcp_add() {
 
        #check for an already active dhcp server on the interface, unless 'force' is set
        config_get_bool force "$cfg" force 0
-       [ $force -gt 0 ] || dhcp_check "$ifname" || return 0
+       [ $force -gt 0 ] || dhcp_check "$ifname" || {
+               logger -t dnsmasq \
+                       "found already running DHCP-server on interface '$ifname'" \
+                       "refusing to start, use 'option force 1' to override"
+               return 0
+       }
 
        config_get start "$cfg" start 100
        config_get limit "$cfg" limit 150
@@ -530,7 +566,7 @@ dhcp_add() {
        fi
 
 
-       if [ $DNSMASQ_DHCP_VER -eq 6 -a "$ra" = "server" ] ; then
+       if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ "$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.
 
@@ -730,7 +766,9 @@ dhcp_relay_add() {
 
 dnsmasq_start()
 {
-       local cfg="$1" disabled resolvfile user_dhcpscript
+       local cfg="$1"
+       local disabled user_dhcpscript
+       local resolvfile resolvdir localuse=0
 
        config_get_bool disabled "$cfg" disabled 0
        [ "$disabled" -gt 0 ] && return 0
@@ -767,13 +805,13 @@ dnsmasq_start()
        $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE=1 || DHCPv6CAPABLE=0
 
 
-       if [ -x /usr/sbin/odhcpd -a -x /etc/init.d/odhcpd ] ; then
+       if [ -x /usr/sbin/odhcpd ] && [ -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
+               if [ "$odhcpd_is_enabled" -eq 0 ] && [ "$DHCPv6CAPABLE" -eq 1 ] ; then
                        # DHCP V4 and V6 in DNSMASQ
                        DNSMASQ_DHCP_VER=6
                elif [ "$odhcpd_is_main" -gt 0 ] ; then
@@ -796,7 +834,7 @@ dnsmasq_start()
                if [ -x /etc/init.d/dhcpd ] ; then
                        /etc/init.d/dhcpd enabled && DNSMASQ_DHCP_VER=0
                fi
-               if [ -x /etc/init.d/dhcpd6 -a "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
+               if [ -x /etc/init.d/dhcpd6 ] && [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
                        /etc/init.d/dhcpd6 enabled && DNSMASQ_DHCP_VER=4
                fi
        fi
@@ -827,6 +865,8 @@ dnsmasq_start()
        append_bool "$cfg" sequential_ip "--dhcp-sequential-ip"
        append_bool "$cfg" allservers "--all-servers"
        append_bool "$cfg" noping "--no-ping"
+       append_bool "$cfg" rapidcommit "--dhcp-rapid-commit"
+       append_bool "$cfg" scriptarp "--script-arp"
 
        append_parm "$cfg" logfacility "--log-facility"
 
@@ -856,6 +896,9 @@ dnsmasq_start()
        append_parm "$cfg" "tftp_root" "--tftp-root"
        append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
        append_parm "$cfg" "local_ttl" "--local-ttl"
+       append_parm "$cfg" "max_ttl" "--max-ttl"
+       append_parm "$cfg" "min_cache_ttl" "--min-cache-ttl"
+       append_parm "$cfg" "max_cache_ttl" "--max-cache-ttl"
        append_parm "$cfg" "pxe_prompt" "--pxe-prompt"
        config_list_foreach "$cfg" "pxe_service" append_pxe_service
        config_get DOMAIN "$cfg" domain
@@ -873,20 +916,22 @@ dnsmasq_start()
        config_get user_dhcpscript $cfg dhcpscript
        if has_handler || [ -n "$user_dhcpscript" ]; then
                xappend "--dhcp-script=$DHCPSCRIPT"
+               xappend "--script-arp"
        fi
 
        config_get leasefile $cfg leasefile "/tmp/dhcp.leases"
-       [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
+       [ -n "$leasefile" ] && [ ! -e "$leasefile" ] && touch "$leasefile"
        config_get_bool cachelocal "$cfg" cachelocal 1
 
        config_get_bool noresolv "$cfg" noresolv 0
        if [ "$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 "$cfg" resolvfile /tmp/resolv.conf.d/resolv.conf.auto
+               [ -n "$resolvfile" ] && [ ! -e "$resolvfile" ] && touch "$resolvfile"
+               xappend "--resolv-file=$resolvfile"
+               [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse=1
+               resolvdir="$(dirname "$resolvfile")"
        fi
-
-       [ -n "$resolvfile" ] && xappend "--resolv-file=$resolvfile"
+       config_get_bool localuse "$cfg" localuse "$localuse"
 
        config_get hostsfile "$cfg" dhcphostsfile
        [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
@@ -919,12 +964,12 @@ dnsmasq_start()
                xappend "--conf-file=$TRUSTANCHORSFILE"
                xappend "--dnssec"
                [ -x /etc/init.d/sysntpd ] && {
-                       /etc/init.d/sysntpd enabled
-                       [ "$?" -ne 0 -o "$(uci_get system.ntp.enabled)" = "1" ] && {
+                       if /etc/init.d/sysntpd enabled || [ "$(uci_get system.ntp.enabled)" = "1" ] ; then
                                [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck"
-                       }
+                       fi
                }
-               append_bool "$cfg" dnsseccheckunsigned "--dnssec-check-unsigned"
+               config_get_bool dnsseccheckunsigned "$cfg" dnsseccheckunsigned 1
+               [ "$dnsseccheckunsigned" -eq 0 ] && xappend "--dnssec-check-unsigned=no"
        }
 
        config_get addmac "$cfg" addmac 0
@@ -956,6 +1001,13 @@ 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"
@@ -1002,7 +1054,7 @@ dnsmasq_start()
        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
@@ -1020,7 +1072,7 @@ dnsmasq_start()
        procd_set_param respawn
 
        procd_add_jail dnsmasq ubus log
-       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 $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE $RFC6761FILE $DHCPBOGUSHOSTNAMEFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvdir $user_dhcpscript /etc/hosts /etc/ethers /sbin/hotplug-call $EXTRA_MOUNT $DHCPSCRIPT
        procd_add_jail_mount_rw /var/run/dnsmasq/ $leasefile
 
        procd_close_instance
@@ -1028,17 +1080,15 @@ dnsmasq_start()
 
 dnsmasq_stop()
 {
-       local cfg="$1" resolvfile
+       local cfg="$1"
+       local noresolv resolvfile localuse=0
 
+       config_get_bool noresolv "$cfg" noresolv 0
        config_get resolvfile "$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
-               }
-       }
+       [ "$noresolv" = 0 ] && [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse=1
+       config_get_bool localuse "$cfg" localuse "$localuse"
+       [ "$localuse" -gt 0 ] && ln -sf "/tmp/resolv.conf.d/resolv.conf.auto" /tmp/resolv.conf
 
        rm -f ${BASEDHCPSTAMPFILE}.${cfg}.*.dhcp
 }
@@ -1050,7 +1100,7 @@ add_interface_trigger()
        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
+       [ -n "$interface" ] && [ $ignore -eq 0 ] && procd_add_interface_trigger "interface.*" "$interface" /etc/init.d/dnsmasq reload
 }
 
 service_triggers()
@@ -1078,7 +1128,7 @@ start_service() {
                local type="$1"
                local name="$2"
                if [ "$type" = "dnsmasq" ]; then
-                       if [ -n "$instance" -a "$instance" = "$name" ]; then
+                       if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
                                instance_found=1
                        fi
                fi
@@ -1107,7 +1157,7 @@ stop_service() {
                local type="$1"
                local name="$2"
                if [ "$type" = "dnsmasq" ]; then
-                       if [ -n "$instance" -a "$instance" = "$name" ]; then
+                       if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
                                instance_found=1
                        fi
                fi