luci: Xray noise

luci-app-passwall2/luasrc/model/cbi/passwall2/client/other.lua

@@ -160,6 +160,9 @@ if has_xray then
 	o.default = "10-20"
 	o:depends("fragment", true)
 
+	o = s_xray:option(Flag, "noise", translate("Noise"), translate("UDP noise, Under some circumstances it can bypass some UDP based protocol restrictions."))
+	o.default = 0
+
 	o = s_xray:option(Flag, "sniffing_override_dest", translate("Override the connection destination address"), translate("Override the connection destination address with the sniffed domain."))
 	o.default = 0
 
@@ -177,6 +180,42 @@ if has_xray then
 
 	o = s_xray:option(Value, "buffer_size", translate("Buffer Size"), translate("Buffer size for every connection (kB)"))
 	o.datatype = "uinteger"
+
+	s_xray_noise = m:section(TypedSection, "xray_noise_packets", translate("Xray Noise Packets"),"<font color='red'>" .. translate("To send noise packets, select \"Noise\" in Xray Settings.") .. "</font>")
+	s_xray_noise.template = "cbi/tblsection"
+	s_xray_noise.sortable = true
+	s_xray_noise.anonymous = true
+	s_xray_noise.addremove = true
+
+	s_xray_noise.create = function(e, t)
+		TypedSection.create(e, api.gen_short_uuid())
+	end
+
+	s_xray_noise.remove = function(self, section)
+		for k, v in pairs(self.children) do
+			v.rmempty = true
+			v.validate = nil
+		end
+		TypedSection.remove(self, section)
+	end
+
+	o = s_xray_noise:option(Flag, "enabled", translate("Enable"))
+	o.default = 1
+	o.rmempty = false
+
+	o = s_xray_noise:option(ListValue, "type", translate("Type"))
+	o:value("rand", "rand")
+	o:value("str", "str")
+	o:value("base64", "base64")
+
+	o = s_xray_noise:option(Value, "packet", translate("Packet"))
+	o.datatype = "minlength(1)"
+	o.rmempty = false
+
+	o = s_xray_noise:option(Value, "delay", translate("Delay (ms)"))
+	o.datatype = "or(uinteger,portrange)"
+	o.rmempty = false
+
 end
 
 if has_singbox then

luci-app-passwall2/luasrc/passwall2/util_xray.lua

@@ -18,6 +18,20 @@ local function get_new_port()
 	return new_port
 end
 
+local function get_noise_packets()
+	local noises = {}
+	uci:foreach(appname, "xray_noise_packets", function(n)
+		local noise = (n.enabled == "1") and {
+			type = n.type,
+			packet = n.packet,
+			delay = string.find(n.delay, "-") and n.delay or tonumber(n.delay)
+		} or nil
+		table.insert(noises, noise)
+	end)
+	if #noises == 0 then noises = nil end
+	return noises
+end
+
 local function get_domain_excluded()
 	local path = string.format("/usr/share/%s/domains_excluded", appname)
 	local content = fs.readfile(path)
@@ -44,10 +58,12 @@ function gen_outbound(flag, node, tag, proxy_table)
 		local proxy = 0
 		local proxy_tag = "nil"
 		local fragment = nil
+		local noise = nil
 		if proxy_table ~= nil and type(proxy_table) == "table" then
 			proxy = proxy_table.proxy or 0
 			proxy_tag = proxy_table.tag or "nil"
 			fragment = proxy_table.fragment or nil
+			noise = proxy_table.noise or nil
 		end
 
 		if node.type == "Xray" then
@@ -132,7 +148,7 @@ function gen_outbound(flag, node, tag, proxy_table)
 					mark = 255,
 					tcpMptcp = (node.tcpMptcp == "1") and true or nil,
 					tcpNoDelay = (node.tcpNoDelay == "1") and true or nil,
-					dialerProxy = fragment and "fragment" or nil
+					dialerProxy = (fragment or noise) and "dialerproxy" or nil
 				},
 				network = node.transport,
 				security = node.stream_security,
@@ -679,7 +695,7 @@ function gen_config(var)
 			end
 			if is_new_blc_node then
 				local blc_node = uci:get_all(appname, blc_node_id)
-				local outbound = gen_outbound(flag, blc_node, blc_node_tag, { fragment = xray_settings.fragment == "1" or nil })
+				local outbound = gen_outbound(flag, blc_node, blc_node_tag, { fragment = xray_settings.fragment == "1" or nil, noise = xray_settings.noise == "1" or nil })
 				if outbound then
 					table.insert(outbounds, outbound)
 					valid_nodes[#valid_nodes + 1] = blc_node_tag
@@ -698,7 +714,7 @@ function gen_config(var)
 			if is_new_node then
 				local fallback_node = uci:get_all(appname, fallback_node_id)
 				if fallback_node.protocol ~= "_balancing" then
-					local outbound = gen_outbound(flag, fallback_node, fallback_node_id, { fragment = xray_settings.fragment == "1" or nil })
+					local outbound = gen_outbound(flag, fallback_node, fallback_node_id, { fragment = xray_settings.fragment == "1" or nil, noise = xray_settings.noise == "1" or nil })
 					if outbound then
 						table.insert(outbounds, outbound)
 					else
@@ -863,6 +879,9 @@ function gen_config(var)
 							if xray_settings.fragment == "1" and not proxy_table.tag then
 								proxy_table.fragment = true
 							end
+							if xray_settings.noise == "1" and not proxy_table.tag then
+								proxy_table.noise = true
+							end
 							local outbound = gen_outbound(flag, _node, rule_name, proxy_table)
 							if outbound then
 								set_outbound_detour(_node, outbound, outbounds, rule_name)
@@ -1054,7 +1073,7 @@ function gen_config(var)
 				sys.call("touch /tmp/etc/passwall2/iface/" .. node.iface)
 			end
 		else
-			local outbound = gen_outbound(flag, node, nil, { fragment = xray_settings.fragment == "1" or nil })
+			local outbound = gen_outbound(flag, node, nil, { fragment = xray_settings.fragment == "1" or nil, noise = xray_settings.fragment == "1" or nil })
 			if outbound then
 				local default_outTag = set_outbound_detour(node, outbound, outbounds)
 				table.insert(outbounds, outbound)
@@ -1421,17 +1440,18 @@ function gen_config(var)
 			}
 		}
 
-		if xray_settings.fragment == "1" then
+		if xray_settings.fragment == "1" or xray_settings.noise == "1" then
 			table.insert(outbounds, {
 				protocol = "freedom",
-				tag = "fragment",
+				tag = "dialerproxy",
 				settings = {
 					domainStrategy = (direct_dns_query_strategy and direct_dns_query_strategy ~= "") and direct_dns_query_strategy or "UseIP",
-					fragment = {
+					fragment = (xray_settings.fragment == "1") and {
 						packets = (xray_settings.fragment_packets and xray_settings.fragment_packets ~= "") and xray_settings.fragment_packets,
 						length = (xray_settings.fragment_length and xray_settings.fragment_length ~= "") and xray_settings.fragment_length,
 						interval = (xray_settings.fragment_interval and xray_settings.fragment_interval ~= "") and xray_settings.fragment_interval
-					}
+					} or nil,
+					noises = (xray_settings.noise == "1") and get_noise_packets() or nil
 				},
 				streamSettings = {
 					sockopt = {

luci-app-passwall2/po/zh-cn/passwall2.po

@@ -1516,6 +1516,24 @@ msgstr "分片间隔"
 msgid "Fragmentation interval (ms)"
 msgstr "分片间隔（ms）"
 
+msgid "Noise"
+msgstr "噪声"
+
+msgid "UDP noise, Under some circumstances it can bypass some UDP based protocol restrictions."
+msgstr "UDP 噪声，在某些情况下可以绕过一些针对 UDP 协议的限制。"
+
+msgid "To send noise packets, select \"Noise\" in Xray Settings."
+msgstr "在 Xray 设置中勾选 “噪声” 以发送噪声包。"
+
+msgid "Xray Noise Packets"
+msgstr "Xray 噪声数据包"
+
+msgid "Packet"
+msgstr "数据包"
+
+msgid "Delay (ms)"
+msgstr "延迟（ms）"
+
 msgid "If is domain name, The requested domain name will be resolved to IP before connect."
 msgstr "如果是域名，域名将在请求发出之前解析为 IP。"