#!/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"
-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
xappend() {
local value="$1"
- echo "${value#--}" >> $CONFIGFILE
+ echo "${value#--}" >> $CONFIGFILE_TMP
+}
+
+hex_to_hostid() {
+ local var="$1"
+ local hex="${2#0x}" # strip optional "0x" prefix
+
+ if [ -n "${hex//[0-9a-fA-F]/}" ]; then
+ # is invalid hex literal
+ return 1
+ fi
+
+ # convert into host id
+ export "$var=$(
+ printf "%0x:%0x" \
+ $(((0x$hex >> 16) % 65536)) \
+ $(( 0x$hex % 65536))
+ )"
+
+ return 0
}
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")
+ # If there's no carrier yet, skip this interface.
+ # The init script will be called again once the link is up
+ case "$(devstatus "$ifname" | jsonfilter -e @.carrier)" in
+ false) return 1;;
+ esac
+
udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0
[ $rv -eq 1 ] && \
logger -t dnsmasq "$@"
}
+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"
}
local section="$1"
local option="$2"
local switch="$3"
+ local default="$4"
local _loctmp
- config_get _loctmp "$section" "$option"
+ config_get _loctmp "$section" "$option" "$default"
[ -z "$_loctmp" ] && return 0
xappend "$switch=$_loctmp"
}
xappend "--server=$1"
}
+append_rev_server() {
+ xappend "--rev-server=$1"
+}
+
append_address() {
xappend "--address=$1"
}
}
append_interface() {
- local ifname=$(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"
}
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" "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 "$cfg" "leasefile" "--dhcp-leasefile"
- append_parm "$cfg" "resolvfile" "--resolv-file"
- 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
-
- config_get leasefile $cfg leasefile
- [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
- config_get_bool cachelocal "$cfg" cachelocal 1
-
- config_get hostsfile "$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=$TRUSTANCHORSFILE"
- xappend "--dnssec"
- xappend "--dnssec-timestamp=$TIMESTAMPFILE"
- 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"
+append_interface_name() {
+ xappend "--interface-name=$1,$2"
+}
- echo >> $CONFIGFILE
+filter_dnsmasq() {
+ local cfg="$1" func="$2" match_cfg="$3" found_cfg
- config_get_bool enable_tftp "$cfg" enable_tftp 0
- [ "$enable_tftp" -gt 0 ] && {
- config_get tftp_root "$cfg" tftp_root
- append EXTRA_MOUNT $tftp_root
- }
+ # use entry when no instance entry set, or if it matches
+ config_get found_cfg "$cfg" "instance"
+ if [ -z "$found_cfg" -o "$found_cfg" = "$match_cfg" ]; then
+ $func $cfg
+ fi
}
dhcp_subscrid_add() {
}
dhcp_circuitid_add() {
+ # TODO: DHCPV6 does not have circuitid; catch "option6:"
local cfg="$1"
config_get networkid "$cfg" networkid
}
dhcp_vendorclass_add() {
+ # TODO: DHCPV6 vendor class has stricter definitions; catch? fixup?
local cfg="$1"
config_get networkid "$cfg" networkid
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
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
- config_get_bool broadcast "$cfg" broadcast 0
- [ "$broadcast" = "0" ] && broadcast=
+ if [ -n "$tag" ]; then
+ for t in $tag; do append tags "$t" ",set:"; done
+ fi
+ config_get_bool broadcast "$cfg" broadcast 0
config_get leasetime "$cfg" leasetime
- xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$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"
}
dhcp_boot_add() {
+ # TODO: BOOTURL is different between DHCPv4 and DHCPv6
local cfg="$1"
config_get networkid "$cfg" networkid
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 = "$proto" ] || return 0
config_get_bool force "$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() {
record="${record:+$record }$name"
done
- echo "$ip $record" >> $HOSTFILE
+ echo "$ip $record" >> $HOSTFILE_TMP
}
dhcp_srv_add() {
if [ -z "$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"
-}
+ local cfg="$1"
+ local disabled user_dhcpscript
+ local resolvfile localuse
-boot() {
- # Will be launched through hotplug
- return 0
-}
+ config_get_bool disabled "$cfg" disabled 0
+ [ "$disabled" -gt 0 ] && return 0
-start_service() {
- include /lib/functions
-
- config_load dhcp
+ # reset list of DOMAINS and DNS servers (for each dnsmasq instance)
+ DNS_SERVERS=""
+ DOMAIN=""
+ CONFIGFILE="${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 $HOSTFILE)
mkdir -p /var/lib/misc
- touch /tmp/dhcp.leases
+ chown dnsmasq:dnsmasq /var/run/dnsmasq
- if [ ! -f "$TIMESTAMPFILE" ]; then
- touch "$TIMESTAMPFILE"
- chown dnsmasq.dnsmasq "$TIMESTAMPFILE"
- fi
+ echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE_TMP
+ echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE_TMP
- echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE
- echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE
+ local dnsmasqconffile="/etc/dnsmasq.${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}"
}
- args=""
- config_foreach dnsmasq dnsmasq
- config_foreach dhcp_host_add host
- echo >> $CONFIGFILE
- 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"
+ $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && 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"
+ 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 "$cfg" noping "--no-ping"
+
+ append_parm "$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" "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"
+ 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 "$cfg" resolvfile /tmp/resolv.conf.auto
+ [ -n "$resolvfile" -a ! -e "$resolvfile" ] && touch "$resolvfile"
+ xappend "--resolv-file=$resolvfile"
+ [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && localuse=1
+ 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
+ [ $rebind_localhost -gt 0 ] && {
+ log_once "Allowing 127.0.0.0/8 responses"
+ xappend "--rebind-localhost-ok"
}
- [ -n "$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=$TRUSTANCHORSFILE"
+ xappend "--dnssec"
+ [ -x /etc/init.d/sysntpd ] && {
+ /etc/init.d/sysntpd enabled
+ [ "$?" -ne 0 -o "$(uci_get system.ntp.enabled)" = "1" ] && {
+ [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck"
+ }
}
+ append_bool "$cfg" dnsseccheckunsigned "--dnssec-check-unsigned"
}
- echo >> $CONFIGFILE
- config_foreach dhcp_srv_add srvhost
- config_foreach dhcp_mx_add mxhost
- echo >> $CONFIGFILE
+ config_get addmac "$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 $HOSTFILE)"
- config_get odhcpd_is_active odhcpd maindhcp
- if [ "$odhcpd_is_active" != "1" ]; then
- config_foreach dhcp_add dhcp
+ 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 >> $CONFIGFILE_TMP
+ config_foreach filter_dnsmasq srvhost dhcp_srv_add "$cfg"
+ 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
+ [ -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
- config_foreach dhcp_cname_add cname
- echo >> $CONFIGFILE
- rm -f /tmp/resolv.conf
- [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
- echo "search $DOMAIN" >> /tmp/resolv.conf
+ 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 $HOSTFILE
+
+ [ "$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 $TIMESTAMPFILE
+ 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
}
+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"
+
+ [ "$noresolv" = 0 -a "$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" "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 "$instance" -a "$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 "$instance" -a "$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
}
projects / openwrt / openwrt.git / blobdiff