[package] firewall:

[openwrt.git] / package / dnsmasq / files / dnsmasq.init

diff --git a/package/dnsmasq/files/dnsmasq.init b/package/dnsmasq/files/dnsmasq.init
index 47c4c2d..0b74d41 100644 (file)
--- a/package/dnsmasq/files/dnsmasq.init
+++ b/package/dnsmasq/files/dnsmasq.init
@@ -23,8 +23,8 @@ 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() {
@@ -42,17 +42,23 @@ append_server() {
 }
 
 append_interface() {
-       append args "-i $1"
+       local ifname=$(uci_get_state network "$1" ifname "$1")
+       append args "-i $ifname"
 }
 
 append_notinterface() {
-       append args "-I $1"
+       local ifname=$(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"
@@ -72,6 +78,7 @@ dnsmasq() {
        append_bool "$cfg" enable_tftp "--enable-tftp"
        append_bool "$cfg" nonwildcard "-z"
 
+       append_parm "$cfg" cachesize "-c"
        append_parm "$cfg" dnsforwardmax "-0"
        append_parm "$cfg" port "-p"
        append_parm "$cfg" ednspacket_max "-P"
@@ -83,6 +90,7 @@ dnsmasq() {
        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 "$cfg" "tftp_root" "--tftp-root"
@@ -94,11 +102,34 @@ dnsmasq() {
        [ "$readethers" = "1" ] && [ -e "/etc/ethers" ] || touch /etc/ethers
 
        config_get leasefile $cfg leasefile
-       [ -e "$leasefile" ] || touch "$leasefile"
+       [ -n "$leasefile" ] && ([ -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() {
@@ -251,7 +282,7 @@ 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 ] || {
+       [ $force -gt 0 ] || {
                udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && return 0
        }
 
@@ -296,12 +327,37 @@ dhcp_domain_add() {
        local raddr="${4:+$4.$3.$2.$1.in-addr.arpa}"
 
        for name in $names; do
-               append args "-A /$name/$ip"
-               [ -n "$raddr" ] && \
-                       append args "--ptr-record=$raddr,$name"
+               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
+
+       local service="$srv,$target"
+       [ -n "$port" ] && service="$service,$port"
+
+       append args "-W $service"
+}
+
 start() {
        include /lib/network
        scan_interfaces
@@ -318,6 +374,7 @@ start() {
        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_add dhcp
 
        /usr/sbin/dnsmasq $args && {