X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/2416808ec0132aca83ff90b19eea6761ca1f8b6d..a727e68c1f777ead7201fae6d5cd14ef18b2d064:/package/dnsmasq/files/dnsmasq.init

diff --git a/package/dnsmasq/files/dnsmasq.init b/package/dnsmasq/files/dnsmasq.init
index 6cb0e0f4f..edd22ad3e 100644
--- a/package/dnsmasq/files/dnsmasq.init
+++ b/package/dnsmasq/files/dnsmasq.init
@@ -2,7 +2,11 @@
 # Copyright (C) 2007 OpenWrt.org
 
 START=60
+
+SERVICE_USE_PID=1
+
 DNS_SERVERS=""
+DOMAIN=""
 
 dhcp_calc() {
 	local ip="$1"
@@ -22,8 +26,8 @@ append_bool() {
 	local option="$2"
 	local value="$3"
 	local _loctmp
-	config_get_bool _loctmp "$section" "$option"
-	[ "$_loctmp" -gt 0 ] && append args "$value"
+	config_get_bool _loctmp "$section" "$option" 0
+	[ $_loctmp -gt 0 ] && append args "$value"
 }
 
 append_parm() {
@@ -40,6 +44,24 @@ append_server() {
 	append args "-S $1"
 }
 
+append_interface() {
+	local ifname=$(uci_get_state network "$1" ifname "$1")
+	append args "-i $ifname"
+}
+
+append_notinterface() {
+	local ifname=$(uci_get_state network "$1" ifname "$1")
+	append args "-I $ifname"
+}
+
+append_addnhosts() {
+	append args "-H $1"
+}
+
+append_bogusnxdomain() {
+       append args "-B $1"
+}
+
 dnsmasq() {
 	local cfg="$1"
 	append_bool "$cfg" authoritative "-K"
@@ -57,132 +79,169 @@ dnsmasq() {
 	append_bool "$cfg" boguspriv "-b"
 	append_bool "$cfg" expandhosts "-E"
 	append_bool "$cfg" enable_tftp "--enable-tftp"
+	append_bool "$cfg" nonwildcard "-z"
 
+	append_parm "$cfg" dhcpscript "-6"
+	append_parm "$cfg" cachesize "-c"
 	append_parm "$cfg" dnsforwardmax "-0"
 	append_parm "$cfg" port "-p"
 	append_parm "$cfg" ednspacket_max "-P"
 	append_parm "$cfg" dhcpleasemax "-X"
-	append_parm "$cfg" "addnhosts" "-H"
 	append_parm "$cfg" "queryport" "-Q"
 	append_parm "$cfg" "domain" "-s"
 	append_parm "$cfg" "local" "-S"
 	config_list_foreach "$cfg" "server" append_server
+	config_list_foreach "$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" "-l"
 	append_parm "$cfg" "resolvfile" "-r"
 	append_parm "$cfg" "tftp_root" "--tftp-root"
 	append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
 
+	config_get DOMAIN "$cfg" domain
+
+	config_get_bool readethers "$cfg" readethers
+	[ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
+
 	config_get leasefile $cfg leasefile
-	[ -e "$leasefile" ] || touch "$leasefile"
+	[ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
 	config_get_bool cachelocal "$cfg" cachelocal 1
+
+	config_get hostsfile "$cfg" dhcphostsfile
+	[ -e "$hostsfile" ] && append args "--dhcp-hostsfile=$hostsfile"
+
+	local rebind
+	config_get_bool rebind "$cfg" rebind_protection 1
+	[ $rebind -gt 0 ] && {
+		logger -t dnsmasq \
+			"DNS rebinding protection is active," \
+			"will discard upstream RFC1918 responses!"
+		append args "--stop-dns-rebind"
+
+		local rebind_localhost
+		config_get_bool rebind_localhost "$cfg" rebind_localhost 0
+		[ $rebind_localhost -gt 0 ] && {
+			logger -t dnsmasq "Allowing 127.0.0.0/8 responses"
+			append args "--rebind-localhost-ok"
+		}
+
+		append_rebind_domain() {
+			logger -t dnsmasq "Allowing RFC1918 responses for domain $1"
+			append args "--rebind-domain-ok=$1"
+		}
+
+		config_list_foreach "$cfg" rebind_domain append_rebind_domain
+	}
 }
 
 dhcp_subscrid_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get subscriberid "$cfg" subscriberid
 	[ -n "$subscriberid" ] || return 0
 
-	append args "--dhcp-subscrid=$name,$subscriberid"
+	append args "--dhcp-subscrid=$networkid,$subscriberid"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_remoteid_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get remoteid "$cfg" remoteid
 	[ -n "$remoteid" ] || return 0
 
-	append args "--dhcp-remoteid=$name,$remoteid"
+	append args "--dhcp-remoteid=$networkid,$remoteid"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_circuitid_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get circuitid "$cfg" circuitid
 	[ -n "$circuitid" ] || return 0
 
-	append args "--dhcp-circuitid=$name,$circuitid"
+	append args "--dhcp-circuitid=$networkid,$circuitid"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_userclass_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get userclass "$cfg" userclass
 	[ -n "$userclass" ] || return 0
 
-	append args "--dhcp-userclass=$name,$userclass"
+	append args "--dhcp-userclass=$networkid,$userclass"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_vendorclass_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get vendorclass "$cfg" vendorclass
 	[ -n "$vendorclass" ] || return 0
 
-	append args "--dhcp-vendorclass=$name,$vendorclass"
+	append args "--dhcp-vendorclass=$networkid,$vendorclass"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_host_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
-
-	config_get mac "$cfg" mac
-	[ -n "$mac" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid"
 
+	config_get name "$cfg" name
 	config_get ip "$cfg" ip
-	[ -n "$ip" ] || return 0
+	[ -n "$ip" ] || [ -n "$name" ] || return 0
 
-	append args "--dhcp-host=$mac,$ip"
+	macs=""
+	config_get mac "$cfg" mac
+	for m in $mac; do append macs "$m" ","; done
+	[ -n "$macs" ] || return 0
 
-	dhcp_option_add "$cfg" "$name"
+	append args "--dhcp-host=$macs${networkid:+,net:$networkid}${ip:+,$ip}${name:+,$name}"
 }
 
 dhcp_mac_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || return 0
 
 	config_get mac "$cfg" mac
 	[ -n "$mac" ] || return 0
 
-	append args "--dhcp-mac=$name,$mac"
+	append args "--dhcp-mac=$networkid,$mac"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_boot_add() {
 	local cfg="$1"
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || return 0
+	config_get networkid "$cfg" networkid
 
 	config_get filename "$cfg" filename
 	[ -n "$filename" ] || return 0
@@ -193,9 +252,9 @@ dhcp_boot_add() {
 	config_get serveraddress "$cfg" serveraddress
 	[ -n "$serveraddress" ] || return 0
 
-	append args "--dhcp-boot=net:$name,$filename,$servername,$serveraddress"
+	append args "--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 
@@ -204,8 +263,8 @@ dhcp_add() {
 	config_get net "$cfg" interface
 	[ -n "$net" ] || return 0
 
-	config_get name "$cfg" name
-	[ -n "$name" ] || name="$net"
+	config_get networkid "$cfg" networkid
+	[ -n "$networkid" ] || networkid="$net"
 
 	config_get ifname "$net" ifname
 	[ -n "$ifname" ] || return 0
@@ -215,7 +274,7 @@ dhcp_add() {
 		DNS_SERVERS="$DNS_SERVERS $dnsserver"
 	}
 
-	append_bool "$cfg" ignore "-2 $ifname"
+	append_bool "$cfg" ignore "-2 $ifname" && return 0
 
 	config_get proto "$net" proto
 	[ static = "$proto" ] || return 0
@@ -226,8 +285,13 @@ 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 ] || {
-		udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && return 0
+	[ $force -gt 0 ] || {
+		udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && {
+			logger -t dnsmasq \
+				"found already running DHCP-server on interface '$ifname'" \
+				"refusing to start, use 'option force 1' to override"
+			return 0
+		}
 	}
 
 	config_get start "$cfg" start
@@ -238,28 +302,109 @@ dhcp_add() {
 
 	leasetime="${leasetime:-12h}"
 	start="$(dhcp_calc "${start:-100}")"
-	limit="$((${limit:-150} + 1))"
+	limit="${limit:-150}"
+	[ "$limit" -gt 0 ] && limit=$((limit-1))
 	eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
 	if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
-	append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
+	append args "--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
 
-	dhcp_option_add "$cfg" "$name"
+	dhcp_option_add "$cfg" "$networkid"
 }
 
 dhcp_option_add() {
 	local cfg="$1"
-	local name="$2"
+	local networkid="$2"
 
 	config_get dhcp_option "$cfg" dhcp_option
 	for o in $dhcp_option; do
-		append args "-O $name","$o"
+		append args "-O $networkid","$o"
 	done
 
 }
 
+dhcp_domain_add() {
+	local cfg="$1"
+	local ip name names
+
+	config_get names "$cfg" name "$2"
+	[ -n "$names" ] || return 0
+
+	config_get ip "$cfg" ip "$3"
+	[ -n "$ip" ] || return 0
+
+	local oIFS="$IFS"; IFS="."; set -- $ip; IFS="$oIFS"
+	local raddr="${4:+$4.$3.$2.$1.in-addr.arpa}"
+
+	for name in $names; do
+		local fqdn="$name"
+
+		[ "${fqdn%.*}" == "$fqdn" ] && \
+			fqdn="$fqdn${DOMAIN:+.$DOMAIN}"
+
+		append args "-A /$fqdn/$ip"
+
+		[ -n "$raddr" ] && {
+			append args "--ptr-record=$raddr,$fqdn"
+			raddr=""
+		}
+	done
+}
+
+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}}"
+
+	append args "-W $service"
+}
+
+dhcp_mx_add() {
+	local cfg="$1"
+
+	[ -n "$domain" ] || return 0
+
+	config_get relay "$cfg" relay
+	[ -n "$relay" ] || return 0
+
+	config_get pref "$cfg" pref 0
+
+	local service="$domain,$relay,$pref"
+
+	append args "--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 "$target" ] || return 0
+
+	append args "--cname=${cname},${target}"
+}
+
 start() {
 	include /lib/network
 	scan_interfaces
+
+	local lanaddr
+	config_get lanaddr "lan" ipaddr
+
 	config_load dhcp
 
 	args=""
@@ -272,10 +417,21 @@ start() {
 	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_srv_add srvhost
+	config_foreach dhcp_mx_add mxhost
 	config_foreach dhcp_add dhcp
+	config_foreach dhcp_cname_add cname
+
+	# add own hostname
+	[ -z "$lanaddr" ] || {
+		local hostname="$(uci_get system.@system[0].hostname)"
+		dhcp_domain_add "" "${hostname:-OpenWrt}" "$lanaddr"
+	}
 
-	/usr/sbin/dnsmasq $args && {
+	service_start /usr/sbin/dnsmasq $args && {
 		rm -f /tmp/resolv.conf
+		[ -n "$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
@@ -284,10 +440,10 @@ start() {
 }
 
 stop() {
-	[ -f /tmp/resolv.conf ] && {
-		rm -f /tmp/resolv.conf
-		ln -s /tmp/resolv.conf.auto /tmp/resolv.conf
+	service_stop /usr/sbin/dnsmasq && {
+		[ -f /tmp/resolv.conf ] && {
+			rm -f /tmp/resolv.conf
+			ln -s /tmp/resolv.conf.auto /tmp/resolv.conf
+		}
 	}
-	killall dnsmasq
-	return 0
 }