X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fstaging%2Fwigyori.git;a=blobdiff_plain;f=package%2Fnetwork%2Fservices%2Fdnsmasq%2Ffiles%2Fdnsmasq.init;h=9288971426ae6146509e046e34391f1082b807ad;hp=0941f87fa8d028e8fc5aa6153bd402d80b31fde4;hb=b17a5a9bdb9f6f5ff73ceee0265b3f5de943d1bb;hpb=6916ca8d33db0ab11434a8fb45f72abd70065c5e diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init index 0941f87fa8..9288971426 100644 --- a/package/network/services/dnsmasq/files/dnsmasq.init +++ b/package/network/services/dnsmasq/files/dnsmasq.init @@ -1,47 +1,85 @@ #!/bin/sh /etc/rc.common # Copyright (C) 2007-2012 OpenWrt.org -START=60 +START=19 USE_PROCD=1 PROG=/usr/sbin/dnsmasq -DNS_SERVERS="" -DOMAIN="" - ADD_LOCAL_DOMAIN=1 ADD_LOCAL_HOSTNAME=1 +ADD_WAN_FQDN=0 +ADD_LOCAL_FQDN="" -CONFIGFILE="/var/etc/dnsmasq.conf" -CONFIGFILE_TMP="/var/etc/dnsmasq.conf.$$" -HOSTFILE="/tmp/hosts/dhcp" +BASECONFIGFILE="/var/etc/dnsmasq.conf" +BASEHOSTFILE="/tmp/hosts/dhcp" TRUSTANCHORSFILE="/usr/share/dnsmasq/trust-anchors.conf" -TIMESTAMPFILE="/etc/dnsmasq.time" 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() { - 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() { @@ -59,7 +97,7 @@ dhcp_calc() { dhcp_check() { local ifname="$1" - local stamp="/var/run/dnsmasq.$ifname.dhcp" + local stamp="${BASEDHCPSTAMPFILE_CFG}.${ifname}.dhcp" local rv=0 [ -s "$stamp" ] && return $(cat "$stamp") @@ -72,11 +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 } @@ -86,12 +119,24 @@ 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" } @@ -110,6 +155,10 @@ append_server() { xappend "--server=$1" } +append_rev_server() { + xappend "--rev-server=$1" +} + append_address() { xappend "--address=$1" } @@ -119,12 +168,16 @@ append_ipset() { } append_interface() { - local ifname=$(uci_get_state network "$1" ifname "$1") + network_get_device ifname "$1" || ifname="$1" xappend "--interface=$ifname" } +append_listenaddress() { + xappend "--listen-address=$1" +} + append_notinterface() { - local ifname=$(uci_get_state network "$1" ifname "$1") + network_get_device ifname "$1" || ifname="$1" xappend "--except-interface=$ifname" } @@ -140,135 +193,18 @@ append_pxe_service() { xappend "--pxe-service=$1" } -dnsmasq() { - local cfg="$1" - append_bool "$cfg" authoritative "--dhcp-authoritative" - append_bool "$cfg" nodaemon "--no-daemon" - append_bool "$cfg" domainneeded "--domain-needed" - append_bool "$cfg" filterwin2k "--filterwin2k" - append_bool "$cfg" nohosts "--no-hosts" - append_bool "$cfg" nonegcache "--no-negcache" - append_bool "$cfg" strictorder "--strict-order" - append_bool "$cfg" logqueries "--log-queries=extra" - append_bool "$cfg" noresolv "--no-resolv" - 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" - append_bool "$cfg" tftp_no_fail "--tftp-no-fail" - append_bool "$cfg" nonwildcard "--bind-dynamic" - append_bool "$cfg" fqdn "--dhcp-fqdn" - append_bool "$cfg" proxydnssec "--proxy-dnssec" - append_bool "$cfg" localservice "--local-service" - 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" cachesize "--cache-size" - append_parm "$cfg" dnsforwardmax "--dns-forward-max" - append_parm "$cfg" port "--port" - append_parm "$cfg" ednspacket_max "--edns-packet-max" - append_parm "$cfg" dhcpleasemax "--dhcp-lease-max" - append_parm "$cfg" "queryport" "--query-port" - append_parm "$cfg" "minport" "--min-port" - append_parm "$cfg" "maxport" "--max-port" - append_parm "$cfg" "domain" "--domain" - append_parm "$cfg" "local" "--server" - config_list_foreach "$cfg" "server" append_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 - 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" - append_parm "$cfg" "local_ttl" "--local-ttl" - append_parm "$cfg" "pxe_prompt" "--pxe-prompt" - config_list_foreach "$cfg" "pxe_service" append_pxe_service - config_get DOMAIN "$cfg" domain - - config_get_bool ADD_LOCAL_DOMAIN "$cfg" add_local_domain 1 - config_get_bool ADD_LOCAL_HOSTNAME "$cfg" add_local_hostname 1 - - config_get_bool readethers "$cfg" readethers - [ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers +append_interface_name() { + xappend "--interface-name=$1,$2" +} - config_get leasefile $cfg leasefile "/tmp/dhcp.leases" - [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile" - config_get_bool cachelocal "$cfg" cachelocal 1 +filter_dnsmasq() { + local cfg="$1" func="$2" match_cfg="$3" found_cfg - 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" + # use entry when no instance entry set, or if it matches + config_get found_cfg "$cfg" "instance" + if [ -z "$found_cfg" ] || [ "$found_cfg" = "$match_cfg" ]; then + $func $cfg fi - - config_get hostsfile "$cfg" dhcphostsfile - [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile" - - local rebind - config_get_bool rebind "$cfg" rebind_protection 1 - [ $rebind -gt 0 ] && { - log_once \ - "DNS rebinding protection is active," \ - "will discard upstream RFC1918 responses!" - xappend "--stop-dns-rebind" - - local rebind_localhost - config_get_bool rebind_localhost "$cfg" rebind_localhost 0 - [ $rebind_localhost -gt 0 ] && { - log_once "Allowing 127.0.0.0/8 responses" - xappend "--rebind-localhost-ok" - } - - append_rebind_domain() { - log_once "Allowing RFC1918 responses for domain $1" - xappend "--rebind-domain-ok=$1" - } - - config_list_foreach "$cfg" rebind_domain append_rebind_domain - } - - config_get_bool dnssec "$cfg" dnssec 0 - [ "$dnssec" -gt 0 ] && { - 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" ] && { - [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck" - } - } - append_bool "$cfg" dnsseccheckunsigned "--dnssec-check-unsigned" - } - - dhcp_option_add "$cfg" "" 0 - - xappend "--dhcp-broadcast=tag:needs-broadcast" - - mkdir -p /tmp/hosts /tmp/dnsmasq.d - xappend "--addn-hosts=/tmp/hosts" - xappend "--conf-dir=/tmp/dnsmasq.d" - xappend "--user=dnsmasq" - xappend "--group=dnsmasq" - - echo >> $CONFIGFILE_TMP - - config_get_bool enable_tftp "$cfg" enable_tftp 0 - [ "$enable_tftp" -gt 0 ] && { - config_get tftp_root "$cfg" tftp_root - append EXTRA_MOUNT $tftp_root - } } dhcp_subscrid_add() { @@ -304,6 +240,7 @@ dhcp_remoteid_add() { } dhcp_circuitid_add() { + # TODO: DHCPV6 does not have circuitid; catch "option6:" local cfg="$1" config_get networkid "$cfg" networkid @@ -336,6 +273,7 @@ dhcp_userclass_add() { } dhcp_vendorclass_add() { + # TODO: DHCPV6 vendor class has stricter definitions; catch? fixup? local cfg="$1" config_get networkid "$cfg" networkid @@ -351,8 +289,25 @@ dhcp_vendorclass_add() { dhcp_option_add "$cfg" "$networkid" "$force" } +dhcp_match_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get match "$cfg" match + [ -n "$match" ] || return 0 + + xappend "--dhcp-match=$networkid,$match" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + dhcp_host_add() { local cfg="$1" + local hosttag nametime addrs duids macs tags config_get_bool force "$cfg" force 0 @@ -364,43 +319,113 @@ 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 + + [ -z "$ip" ] && [ -z "$name" ] && [ -z "$hostid" ] && return 0 config_get_bool dns "$cfg" dns 0 - [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && { - echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE + [ "$dns" = "1" ] && [ -n "$ip" ] && [ -n "$name" ] && { + 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 ] && [ -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" ] && [ -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" ] && [ -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" @@ -431,6 +456,7 @@ dhcp_mac_add() { } dhcp_boot_add() { + # TODO: BOOTURL is different between DHCPv4 and DHCPv6 local cfg="$1" config_get networkid "$cfg" networkid @@ -441,7 +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}" @@ -453,24 +479,30 @@ 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 @@ -480,37 +512,149 @@ 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 - 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 ] && [ "$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() { @@ -527,7 +671,7 @@ dhcp_domain_add() { record="${record:+$record }$name" done - echo "$ip $record" >> $HOSTFILE + echo "$ip $record" >> $HOSTFILE_TMP } dhcp_srv_add() { @@ -615,125 +759,416 @@ 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 } -service_triggers() +dnsmasq_start() { - procd_add_reload_trigger "dhcp" -} - -boot() { - # Will be launched through hotplug - return 0 -} + local cfg="$1" + local disabled user_dhcpscript + local resolvfile resolvdir localuse=0 -start_service() { - include /lib/functions + config_get_bool disabled "$cfg" disabled 0 + [ "$disabled" -gt 0 ] && return 0 - config_load dhcp + # reset list of DOMAINS and DNS servers (for each dnsmasq instance) + DNS_SERVERS="" + DOMAIN="" + CONFIGFILE="${BASECONFIGFILE}.${cfg}" + CONFIGFILE_TMP="${CONFIGFILE}.$$" + HOSTFILE="${BASEHOSTFILE}.${cfg}" + HOSTFILE_TMP="${HOSTFILE}.$$" + BASEDHCPSTAMPFILE_CFG="${BASEDHCPSTAMPFILE}.${cfg}" # before we can call xappend mkdir -p /var/run/dnsmasq/ mkdir -p $(dirname $CONFIGFILE) + mkdir -p $(dirname $HOSTFILE) mkdir -p /var/lib/misc - touch /tmp/dhcp.leases - - [ -f "$TIMESTAMPFILE" ] && rm -f "$TIMESTAMPFILE" + chown dnsmasq:dnsmasq /var/run/dnsmasq 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 - args="" - config_foreach dnsmasq dnsmasq - config_foreach dhcp_host_add host - echo >> $CONFIGFILE_TMP - config_foreach dhcp_boot_add boot - config_foreach dhcp_mac_add mac - config_foreach dhcp_tag_add tag - config_foreach dhcp_vendorclass_add vendorclass - config_foreach dhcp_userclass_add userclass - config_foreach dhcp_circuitid_add circuitid - config_foreach dhcp_remoteid_add remoteid - config_foreach dhcp_subscrid_add subscrid - config_foreach dhcp_domain_add domain - config_foreach dhcp_hostrecord_add hostrecord - config_foreach dhcp_relay_add relay - - # 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" "$lanaddr" + + if [ -x /usr/sbin/odhcpd ] && [ -x /etc/init.d/odhcpd ] ; then + local odhcpd_is_main odhcpd_is_enabled + config_get odhcpd_is_main odhcpd maindhcp 0 + /etc/init.d/odhcpd enabled && odhcpd_is_enabled=1 || odhcpd_is_enabled=0 + + + if [ "$odhcpd_is_enabled" -eq 0 ] && [ "$DHCPv6CAPABLE" -eq 1 ] ; then + # DHCP V4 and V6 in DNSMASQ + DNSMASQ_DHCP_VER=6 + elif [ "$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 [ "$DHCPv6CAPABLE" -eq 1 ] ; then + # DHCP V4 and V6 in DNSMASQ + DNSMASQ_DHCP_VER=6 + else + DNSMASQ_DHCP_VER=4 + fi + + # Allow DHCP/DHCPv6 to be handled by ISC DHCPD + if [ -x /usr/sbin/dhcpd ] ; then + if [ -x /etc/init.d/dhcpd ] ; then + /etc/init.d/dhcpd enabled && DNSMASQ_DHCP_VER=0 + fi + if [ -x /etc/init.d/dhcpd6 ] && [ "$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 "$cfg" domainneeded "--domain-needed" + append_bool "$cfg" filterwin2k "--filterwin2k" + append_bool "$cfg" nohosts "--no-hosts" + append_bool "$cfg" nonegcache "--no-negcache" + append_bool "$cfg" strictorder "--strict-order" + append_bool "$cfg" logqueries "--log-queries=extra" + append_bool "$cfg" noresolv "--no-resolv" + append_bool "$cfg" localise_queries "--localise-queries" + append_bool "$cfg" readethers "--read-ethers" + append_bool "$cfg" dbus "--enable-dbus" + append_bool "$cfg" ubus "--enable-ubus" 1 + append_bool "$cfg" expandhosts "--expand-hosts" + config_get tftp_root "$cfg" "tftp_root" + [ -n "$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" 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_bool "$cfg" rapidcommit "--dhcp-rapid-commit" + append_bool "$cfg" scriptarp "--script-arp" + + append_parm "$cfg" logfacility "--log-facility" + + append_parm "$cfg" cachesize "--cache-size" + append_parm "$cfg" dnsforwardmax "--dns-forward-max" + append_parm "$cfg" port "--port" + append_parm "$cfg" ednspacket_max "--edns-packet-max" + append_parm "$cfg" dhcpleasemax "--dhcp-lease-max" + append_parm "$cfg" "queryport" "--query-port" + append_parm "$cfg" "minport" "--min-port" + 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 + [ -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 "$cfg" "serversfile" "--servers-file" + append_parm "$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 + + 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 + + if [ -z "$ADD_LOCAL_FQDN" ] ; then + # maintain support for previous UCI + ADD_LOCAL_FQDN="$ADD_LOCAL_HOSTNAME" + fi + + 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" ] && [ ! -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.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 "$resolvfile")" + fi + config_get_bool localuse "$cfg" localuse "$localuse" + + config_get hostsfile "$cfg" dhcphostsfile + [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile" + + local rebind + config_get_bool rebind "$cfg" rebind_protection 1 + [ $rebind -gt 0 ] && { + log_once \ + "DNS rebinding protection is active," \ + "will discard upstream RFC1918 responses!" + xappend "--stop-dns-rebind" + + local rebind_localhost + config_get_bool rebind_localhost "$cfg" rebind_localhost 0 + [ $rebind_localhost -gt 0 ] && { + log_once "Allowing 127.0.0.0/8 responses" + xappend "--rebind-localhost-ok" } - [ -n "$ulaprefix" ] && network_get_ipaddrs6 lanaddr6 "lan" && { - for lanaddr6 in $lanaddr6; do - case "$lanaddr6" in - "${ulaprefix%%:/*}"*) - dhcp_domain_add "" "$hostname" "$lanaddr6" - ;; - esac - done + append_rebind_domain() { + log_once "Allowing RFC1918 responses for domain $1" + xappend "--rebind-domain-ok=$1" + } + + config_list_foreach "$cfg" rebind_domain append_rebind_domain + } + + config_get_bool dnssec "$cfg" dnssec 0 + [ "$dnssec" -gt 0 ] && { + xappend "--conf-file=$TRUSTANCHORSFILE" + xappend "--dnssec" + [ -x /etc/init.d/sysntpd ] && { + if /etc/init.d/sysntpd enabled || [ "$(uci_get system.ntp.enabled)" = "1" ] ; then + [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck" + fi } + config_get_bool dnsseccheckunsigned "$cfg" dnsseccheckunsigned 1 + [ "$dnsseccheckunsigned" -eq 0 ] && xappend "--dnssec-check-unsigned=no" + } + + config_get addmac "$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=$(dirname $HOSTFILE)" + + config_get dnsmasqconfdir "$cfg" confdir "/tmp/dnsmasq.d" + xappend "--conf-dir=$dnsmasqconfdir" + dnsmasqconfdir="${dnsmasqconfdir%%,*}" + [ ! -d "$dnsmasqconfdir" ] && mkdir -p $dnsmasqconfdir + xappend "--user=dnsmasq" + xappend "--group=dnsmasq" + echo >> $CONFIGFILE_TMP + + config_get_bool enable_tftp "$cfg" enable_tftp 0 + [ "$enable_tftp" -gt 0 ] && { + config_get tftp_root "$cfg" tftp_root + append EXTRA_MOUNT $tftp_root + } + + config_foreach filter_dnsmasq host dhcp_host_add "$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" + config_foreach filter_dnsmasq vendorclass dhcp_vendorclass_add "$cfg" + config_foreach filter_dnsmasq userclass dhcp_userclass_add "$cfg" + config_foreach filter_dnsmasq circuitid dhcp_circuitid_add "$cfg" + config_foreach filter_dnsmasq remoteid dhcp_remoteid_add "$cfg" + config_foreach filter_dnsmasq subscrid dhcp_subscrid_add "$cfg" + config_foreach filter_dnsmasq match dhcp_match_add "$cfg" + config_foreach filter_dnsmasq domain dhcp_domain_add "$cfg" + config_foreach filter_dnsmasq hostrecord dhcp_hostrecord_add "$cfg" + [ -n "$BOOT" ] || config_foreach filter_dnsmasq relay dhcp_relay_add "$cfg" + echo >> $CONFIGFILE_TMP - config_foreach dhcp_srv_add srvhost - config_foreach dhcp_mx_add mxhost + config_foreach filter_dnsmasq srvhost dhcp_srv_add "$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 dhcp_add dhcp + 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 - config_foreach dhcp_cname_add cname + echo >> $CONFIGFILE_TMP mv -f $CONFIGFILE_TMP $CONFIGFILE + mv -f $HOSTFILE_TMP $HOSTFILE - rm -f /tmp/resolv.conf - [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && { - echo "search $DOMAIN" >> /tmp/resolv.conf + [ "$localuse" -gt 0 ] && { + rm -f /tmp/resolv.conf + [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && { + echo "search $DOMAIN" >> /tmp/resolv.conf + } + DNS_SERVERS="$DNS_SERVERS 127.0.0.1" + for DNS_SERVER in $DNS_SERVERS ; do + echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf + done } - DNS_SERVERS="$DNS_SERVERS 127.0.0.1" - for DNS_SERVER in $DNS_SERVERS ; do - echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf - done - procd_open_instance - procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq.pid + 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 procd_add_jail dnsmasq ubus log - procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom /etc/dnsmasq.conf /tmp/dnsmasq.d /tmp/resolv.conf.auto /etc/hosts /etc/ethers $EXTRA_MOUNT - procd_add_jail_mount_rw /var/run/dnsmasq/ /tmp/dhcp.leases + 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 } +dnsmasq_stop() +{ + local cfg="$1" + local noresolv resolvfile localuse=0 + + config_get_bool noresolv "$cfg" noresolv 0 + config_get resolvfile "$cfg" "resolvfile" + + [ "$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 +} + +add_interface_trigger() +{ + local interface ignore + + config_get interface "$1" interface + config_get_bool ignore "$1" ignore 0 + + [ -n "$interface" ] && [ $ignore -eq 0 ] && procd_add_interface_trigger "interface.*" "$interface" /etc/init.d/dnsmasq reload +} + +service_triggers() +{ + procd_add_reload_trigger "dhcp" "system" + + config_load dhcp + config_foreach add_interface_trigger dhcp + config_foreach add_interface_trigger relay +} + +boot() +{ + BOOT=1 + start "$@" +} + +start_service() { + local instance="$1" + local instance_found=0 + + . /lib/functions/network.sh + + config_cb() { + local type="$1" + local name="$2" + if [ "$type" = "dnsmasq" ]; then + if [ -n "$instance" ] && [ "$instance" = "$name" ]; then + instance_found=1 + fi + fi + } + + config_load dhcp + + if [ -n "$instance" ]; then + [ "$instance_found" -gt 0 ] || return + dnsmasq_start "$instance" + else + config_foreach dnsmasq_start dnsmasq + fi +} + reload_service() { rc_procd start_service "$@" - return 0 + procd_send_signal dnsmasq "$@" } stop_service() { - [ -f /tmp/resolv.conf ] && { - rm -f /tmp/resolv.conf - ln -s /tmp/resolv.conf.auto /tmp/resolv.conf + local instance="$1" + local instance_found=0 + + config_cb() { + local type="$1" + local name="$2" + if [ "$type" = "dnsmasq" ]; then + if [ -n "$instance" ] && [ "$instance" = "$name" ]; then + instance_found=1 + fi + fi } - rm -f /var/run/dnsmasq.*.dhcp + + config_load dhcp + + if [ -n "$instance" ]; then + [ "$instance_found" -gt 0 ] || return + dnsmasq_stop "$instance" + else + config_foreach dnsmasq_stop dnsmasq + fi }