diff options
author | James <> | 2015-11-04 11:49:21 +0000 |
---|---|---|
committer | James <> | 2015-11-04 11:49:21 +0000 |
commit | 716ca530e1c4515d8683c9d5be3d56b301758b66 (patch) | |
tree | 700eb5bcc1a462a5f21dcec15ce7c97ecfefa772 /package/network/services/dnsmasq/files/dnsmasq.init | |
download | trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.tar.gz trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.tar.bz2 trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.zip |
Diffstat (limited to 'package/network/services/dnsmasq/files/dnsmasq.init')
-rw-r--r-- | package/network/services/dnsmasq/files/dnsmasq.init | 641 |
1 files changed, 641 insertions, 0 deletions
diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init new file mode 100644 index 0000000..1b42cff --- /dev/null +++ b/package/network/services/dnsmasq/files/dnsmasq.init @@ -0,0 +1,641 @@ +#!/bin/sh /etc/rc.common +# Copyright (C) 2007-2012 OpenWrt.org + +START=60 + +USE_PROCD=1 +PROG=/usr/sbin/dnsmasq + +DNS_SERVERS="" +DOMAIN="" + +ADD_LOCAL_DOMAIN=1 +ADD_LOCAL_HOSTNAME=1 + +CONFIGFILE="/var/etc/dnsmasq.conf" +HOSTFILE="/tmp/hosts/dhcp" +TRUSTANCHORSFILE="/usr/share/dnsmasq/trust-anchors.conf" +TIMESTAMPFILE="/etc/dnsmasq.time" + +xappend() { + local value="$1" + + echo "${value#--}" >> $CONFIGFILE +} + +dhcp_calc() { + local ip="$1" + local res=0 + + while [ -n "$ip" ]; do + part="${ip%%.*}" + res="$(($res * 256))" + res="$(($res + $part))" + [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip= + done + echo "$res" +} + +dhcp_check() { + local ifname="$1" + local stamp="/var/run/dnsmasq.$ifname.dhcp" + local rv=0 + + [ -s "$stamp" ] && return $(cat "$stamp") + + 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 $rv +} + +log_once() { + pidof dnsmasq >/dev/null || \ + logger -t dnsmasq "$@" +} + +append_bool() { + local section="$1" + local option="$2" + local value="$3" + local _loctmp + config_get_bool _loctmp "$section" "$option" 0 + [ $_loctmp -gt 0 ] && xappend "$value" +} + +append_parm() { + local section="$1" + local option="$2" + local switch="$3" + local _loctmp + config_get _loctmp "$section" "$option" + [ -z "$_loctmp" ] && return 0 + xappend "$switch=$_loctmp" +} + +append_server() { + xappend "--server=$1" +} + +append_address() { + xappend "--address=$1" +} + +append_ipset() { + xappend "--ipset=$1" +} + +append_interface() { + local ifname=$(uci_get_state network "$1" ifname "$1") + xappend "--interface=$ifname" +} + +append_notinterface() { + local ifname=$(uci_get_state network "$1" ifname "$1") + xappend "--except-interface=$ifname" +} + +append_addnhosts() { + xappend "--addn-hosts=$1" +} + +append_bogusnxdomain() { + xappend "--bogus-nxdomain=$1" +} + +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 "$cfg" expandhosts "--expand-hosts" + append_bool "$cfg" enable_tftp "--enable-tftp" + append_bool "$cfg" tftp_no_fail "--tftp-no-fail" + append_bool "$cfg" nonwildcard "--bind-interfaces" + 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 "$cfg" sequential_ip "--dhcp-sequential-ip" + + append_parm "$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 "$cfg" "domain" "--domain" + append_parm "$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" + + echo >> $CONFIGFILE +} + +dhcp_subscrid_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get subscriberid "$cfg" subscriberid + [ -n "$subscriberid" ] || return 0 + + xappend "--dhcp-subscrid=$networkid,$subscriberid" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + +dhcp_remoteid_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get remoteid "$cfg" remoteid + [ -n "$remoteid" ] || return 0 + + xappend "--dhcp-remoteid=$networkid,$remoteid" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + +dhcp_circuitid_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get circuitid "$cfg" circuitid + [ -n "$circuitid" ] || return 0 + + xappend "--dhcp-circuitid=$networkid,$circuitid" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + +dhcp_userclass_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get userclass "$cfg" userclass + [ -n "$userclass" ] || return 0 + + xappend "--dhcp-userclass=$networkid,$userclass" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + +dhcp_vendorclass_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get vendorclass "$cfg" vendorclass + [ -n "$vendorclass" ] || return 0 + + xappend "--dhcp-vendorclass=$networkid,$vendorclass" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + +dhcp_host_add() { + local cfg="$1" + + config_get_bool force "$cfg" force 0 + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid" "$force" + + config_get name "$cfg" name + config_get ip "$cfg" ip + [ -n "$ip" -o -n "$name" ] || return 0 + + config_get_bool dns "$cfg" dns 0 + [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && { + echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE + } + + config_get mac "$cfg" mac + if [ -n "$mac" ]; then + # --dhcp-host=00:20:e0:3b:13:af,192.168.0.199,lap + macs="" + for m in $mac; do append macs "$m" ","; done + else + # --dhcp-host=lap,192.168.0.199 + [ -n "$name" ] || return 0 + macs="$name" + name="" + fi + + config_get tag "$cfg" tag + + config_get_bool broadcast "$cfg" broadcast 0 + [ "$broadcast" = "0" ] && broadcast= + + xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}" +} + +dhcp_tag_add() { + local cfg="$1" + + tag="$cfg" + + [ -n "$tag" ] || return 0 + + config_get_bool force "$cfg" force 0 + [ "$force" = "0" ] && force= + + config_get option "$cfg" dhcp_option + for o in $option; do + xappend "--dhcp-option${force:+-force}=tag:$tag,$o" + done +} + +dhcp_mac_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + [ -n "$networkid" ] || return 0 + + config_get mac "$cfg" mac + [ -n "$mac" ] || return 0 + + xappend "--dhcp-mac=$networkid,$mac" + + dhcp_option_add "$cfg" "$networkid" +} + +dhcp_boot_add() { + local cfg="$1" + + config_get networkid "$cfg" networkid + + config_get filename "$cfg" filename + [ -n "$filename" ] || return 0 + + config_get servername "$cfg" servername + config_get serveraddress "$cfg" serveraddress + + [ -n "$serveraddress" -a ! -n "$servername" ] && return 0 + + xappend "--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}" + + config_get_bool force "$cfg" force 0 + + dhcp_option_add "$cfg" "$networkid" "$force" +} + + +dhcp_add() { + local cfg="$1" + config_get net "$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=$ifname" && return 0 + + # Do not support non-static interfaces for now + [ static = "$proto" ] || return 0 + + # Override interface netmask with dhcp config if applicable + config_get netmask "$cfg" netmask "${subnet##*/}" + + #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 + + config_get start "$cfg" start + config_get limit "$cfg" limit + config_get leasetime "$cfg" leasetime + config_get options "$cfg" options + config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1 + + leasetime="${leasetime:-12h}" + start="$(dhcp_calc "${start:-100}")" + limit="${limit:-150}" + [ "$limit" -gt 0 ] && limit=$((limit-1)) + eval "$(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" +} + +dhcp_option_add() { + local cfg="$1" + local networkid="$2" + local force="$3" + + [ "$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 + +} + +dhcp_domain_add() { + local cfg="$1" + local ip name names record + + config_get names "$cfg" name "$2" + [ -n "$names" ] || return 0 + + config_get ip "$cfg" ip "$3" + [ -n "$ip" ] || return 0 + + for name in $names; do + record="${record:+$record }$name" + done + + echo "$ip $record" >> $HOSTFILE +} + +dhcp_srv_add() { + local cfg="$1" + + config_get srv "$cfg" srv + [ -n "$srv" ] || return 0 + + config_get target "$cfg" target + [ -n "$target" ] || return 0 + + config_get port "$cfg" port + [ -n "$port" ] || return 0 + + config_get class "$cfg" class + config_get weight "$cfg" weight + + local service="$srv,$target,$port${class:+,$class${weight:+,$weight}}" + + xappend "--srv-host=$service" +} + +dhcp_mx_add() { + local cfg="$1" + local domain relay pref + + config_get domain "$cfg" domain + [ -n "$domain" ] || return 0 + + config_get relay "$cfg" relay + [ -n "$relay" ] || return 0 + + config_get pref "$cfg" pref 0 + + local service="$domain,$relay,$pref" + + xappend "--mx-host=$service" +} + +dhcp_cname_add() { + local cfg="$1" + local cname target + + config_get cname "$cfg" cname + [ -n "$cname" ] || return 0 + + config_get target "$cfg" target + [ -n "$target" ] || return 0 + + xappend "--cname=${cname},${target}" +} + +dhcp_hostrecord_add() { + local cfg="$1" + local names addresses record val + + config_get names "$cfg" name "$2" + if [ -z "$names" ]; then + return 0 + fi + + config_get addresses "$cfg" ip "$3" + if [ -z "$addresses" ]; then + return 0 + fi + + for val in $names $addresses; do + record="${record:+$record,}$val" + done + + xappend "--host-record=$record" +} + +service_triggers() +{ + procd_add_reload_trigger "dhcp" +} + +boot() { + # Will be launched through hotplug + return 0 +} + +start_service() { + include /lib/functions + + config_load dhcp + + procd_open_instance + procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq.pid + procd_set_param file $CONFIGFILE + 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 + procd_add_jail_mount_rw /var/run/dnsmasq/ /tmp/dhcp.leases $TIMESTAMPFILE + + procd_close_instance + + # before we can call xappend + mkdir -p /var/run/dnsmasq/ + mkdir -p $(dirname $CONFIGFILE) + mkdir -p /var/lib/misc + touch /tmp/dhcp.leases + + if [ ! -f "$TIMESTAMPFILE" ]; then + touch "$TIMESTAMPFILE" + chown nobody.nogroup "$TIMESTAMPFILE" + fi + + echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE + echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE + + # if we did this last, we could override auto-generated config + [ -f /etc/dnsmasq.conf ] && { + xappend "--conf-file=/etc/dnsmasq.conf" + } + + 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 + + # add own hostname + local lanaddr + [ $ADD_LOCAL_HOSTNAME -eq 1 ] && network_get_ipaddr lanaddr "lan" && { + local hostname="$(uci_get system @system[0] hostname OpenWrt)" + dhcp_domain_add "" "$hostname" "$lanaddr" + } + + echo >> $CONFIGFILE + config_foreach dhcp_srv_add srvhost + config_foreach dhcp_mx_add mxhost + echo >> $CONFIGFILE + + config_get odhcpd_is_active odhcpd maindhcp + if [ "$odhcpd_is_active" != "1" ]; then + config_foreach dhcp_add dhcp + 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 $DOMAIN" >> /tmp/resolv.conf + } + DNS_SERVERS="$DNS_SERVERS 127.0.0.1" + for DNS_SERVER in $DNS_SERVERS ; do + echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf + done +} + +reload_service() { + rc_procd start_service "$@" + return 0 +} + +stop_service() { + [ -f /tmp/resolv.conf ] && { + rm -f /tmp/resolv.conf + ln -s /tmp/resolv.conf.auto /tmp/resolv.conf + } + rm -f /var/run/dnsmasq.*.dhcp +} |