dnsmasq: don't use network functions at boottime (FS#1542)

As dnsmasq is started earlier than netifd usage of network.sh functions
at boottime will fail; therefore don't call at boottime the functions
which construct the dhcp pool/relay info.
As interface triggers are installed the dhcp pool/relay info will be
constructed when the interface gets reported as up by netifd.
At the same time also register interface triggers based on DHCP relay
config.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

package/network/services/dnsmasq/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dnsmasq
 PKG_VERSION:=2.80test2
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq/test-releases

package/network/services/dnsmasq/files/dnsmasq.init

@@ -844,8 +844,10 @@ dnsmasq_start()
 	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 "$cfg" "leasefile" "--dhcp-leasefile" "/tmp/dhcp.leases"
@@ -967,7 +969,7 @@ dnsmasq_start()
 	config_foreach filter_dnsmasq match dhcp_match_add "$cfg"
 	config_foreach filter_dnsmasq domain dhcp_domain_add "$cfg"
 	config_foreach filter_dnsmasq hostrecord dhcp_hostrecord_add "$cfg"
-	config_foreach filter_dnsmasq relay dhcp_relay_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"
@@ -984,13 +986,13 @@ dnsmasq_start()
 		# 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
-		config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
+		[ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
 		xappend "--enable-ra"
 		xappend "--quiet-ra"
 		append_bool "$cfg" quietdhcp "--quiet-dhcp6"
 
 	elif [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
-		config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
+		[ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
 	fi
 
 
@@ -1059,6 +1061,13 @@ service_triggers()
 
 	config_load dhcp
 	config_foreach add_interface_trigger dhcp
+	config_foreach add_interface_trigger relay
+}
+
+boot()
+{
+	BOOT=1
+	start "$@"
 }
 
 start_service() {