add ethinfo script

Signed-off-by: sbwml <admin@cooluc.com>

Makefile

@@ -46,6 +46,7 @@ define Package/autocore/install/Default
 
 	$(INSTALL_DIR) $(1)/sbin
 	$(INSTALL_BIN) ./files/generic/cpuinfo $(1)/sbin/
+	$(INSTALL_BIN) ./files/generic/ethinfo $(1)/sbin/
 
 	$(INSTALL_DIR) $(1)/usr/share/rpcd/acl.d
 	$(CP) ./files/generic/luci-mod-status-autocore.json $(1)/usr/share/rpcd/acl.d/

files/generic/ethinfo

@@ -0,0 +1,23 @@
+#!/usr/bin/lua
+
+local util = require "luci.util"
+local jsonc = require "luci.jsonc"
+
+local eth_info = {}
+local ifname, stat
+for ifname, stat in pairs(util.ubus("network.device", "status")) do
+	if ifname:match("^(eth%d+)$") == ifname or ifname:match("^(usb%d+)$") or ifname:match("^(lan%d+)$") or ifname:match("wan") == ifname then
+		eth_info[#eth_info + 1] = {
+			device = ifname
+		}
+	end
+end
+
+table.sort(
+	eth_info,
+	function(a, b)
+		return a.device < b.device
+	end
+)
+
+print(jsonc.stringify(eth_info))