nft openwrt : resolve physdev behind pppoe for hw offload

common/nft.sh

@@ -309,6 +309,10 @@ nft_fill_ifsets()
 	# $1 - space separated lan interface names
 	# $2 - space separated wan interface names
 	# $3 - space separated wan6 interface names
+	# 4,5,6 is needed for pppoe+openwrt case. looks like it's not easily possible to resolve ethernet device behind a pppoe interface
+	# $4 - space separated lan physical interface names (optional)
+	# $5 - space separated wan physical interface names (optional)
+	# $6 - space separated wan6 physical interface names (optional)
 
 	local script i j ALLDEVS devs
 
@@ -333,7 +337,7 @@ flush set inet $ZAPRET_NFT_TABLE lanif"
 			nft_create_or_update_flowtable '' $ALLDEVS 2>/dev/null
 			;;
 		hardware)
-			ALLDEVS=$(unique $1 $2 $3)
+			ALLDEVS=$(unique $1 $2 $3 $4 $5 $6)
 			# first create unbound flowtable. may cause error in older nft version
 			nft_create_or_update_flowtable 'offload' 2>/dev/null
 			# then add elements. some of them can cause error because unsupported

init.d/openwrt/functions

@@ -217,17 +217,20 @@ flow_offloading_unexempt()
 
 nft_fill_ifsets_overload()
 {
-	local ifaces DLAN DWAN DWAN6
+	local ifaces DLAN DWAN DWAN6 PDLAN PDWAN PDWAN6
 
 	call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
+	call_for_multiple_items network_get_physdev PDLAN "$OPENWRT_LAN"
 
 	network_find_wan4_all ifaces
 	call_for_multiple_items network_get_device DWAN "$ifaces"
+	call_for_multiple_items network_get_physdev PDWAN "$ifaces"
 
 	network_find_wan6_all ifaces
 	call_for_multiple_items network_get_device DWAN6 "$ifaces"
+	call_for_multiple_items network_get_physdev PDWAN6 "$ifaces"
 
-	nft_fill_ifsets "$DLAN" "$DWAN" "$DWAN6"
+	nft_fill_ifsets "$DLAN" "$DWAN" "$DWAN6" "$PDLAN" "$PDWAN" "$PDWAN6"
 }
 
 nft_fw_tpws4()