From 1c77b7965b7d74d60df1027af475ebebae38973f Mon Sep 17 00:00:00 2001
From: Ycarus <ycarus@zugaina.org>
Date: Thu, 12 Apr 2018 15:18:56 +0200
Subject: [PATCH] Add advanced settings to luci app openmptcprouter

---
 .../luasrc/controller/openmptcprouter.lua     | 28 +++++++++++++++++-
 .../luasrc/view/openmptcprouter/settings.htm  | 29 +++++++++++++++++++
 .../etc/sysctl.d/zzz_openmptcprouter.conf     |  2 ++
 3 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
 create mode 100644 luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf

diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index 7ee643502..6c7eb5ee1 100644
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -13,12 +13,15 @@ function index()
 	entry({"admin", "system", "openmptcprouter", "wizard_add"}, post("wizard_add"))
 	entry({"admin", "system", "openmptcprouter", "status"}, template("openmptcprouter/wanstatus"), _("Status"), 2).leaf = true
 	entry({"admin", "system", "openmptcprouter", "interfaces_status"}, call("interfaces_status")).leaf = true
+	entry({"admin", "system", "openmptcprouter", "settings"}, template("openmptcprouter/settings"), _("Advanced Settings"), 3).leaf = true
+	entry({"admin", "system", "openmptcprouter", "settings_add"}, post("settings_add")).leaf = true
 end
 
 function wizard_add()
 	local server_ip = luci.http.formvalue("server_ip")
+
+	-- Set ShadowSocks settings
 	local shadowsocks_key = luci.http.formvalue("shadowsocks_key")
-	local glorytun_key = luci.http.formvalue("glorytun_key")
 	if shadowsocks_key ~= "" then
 		ucic:set("shadowsocks-libev","sss0","server",server_ip)
 		ucic:set("shadowsocks-libev","sss0","key",shadowsocks_key)
@@ -28,6 +31,9 @@ function wizard_add()
 		ucic:save("shadowsocks-libev")
 		ucic:commit("shadowsocks-libev")
 	end
+
+	-- Set Glorytun TCP settings
+	local glorytun_key = luci.http.formvalue("glorytun_key")
 	if glorytun_key ~= "" then
 		ucic:set("glorytun","vpn","host",server_ip)
 		ucic:set("glorytun","vpn","port","65001")
@@ -40,6 +46,7 @@ function wizard_add()
 		ucic:commit("glorytun")
 	end
 
+	-- Set interfaces settings
 	local interfaces = luci.http.formvaluetable("intf")
 	for intf, _ in pairs(interfaces) do
 		local ipaddr = luci.http.formvalue("cbid.network.%s.ipaddr" % intf)
@@ -57,6 +64,25 @@ function wizard_add()
 	return
 end
 
+function settings_add()
+	-- Set tcp_keepalive_time
+	local tcp_keepalive_time = luci.http.formvalue("tcp_keepalive_time")
+	luci.sys.exec("sysctl -w net.ipv4.tcp_keepalive_time=%s" % tcp_keepalive_time)
+	luci.sys.exec("sed -i 's:^net.ipv4.tcp_keepalive_time = [0-9]*:net.ipv4.tcp_keepalive_time=%s:' /etc/sysctl.d/zzz_openmptcprouter.conf" % tcp_keepalive_time)
+	
+	-- Disable IPv6
+	local disable_ipv6 = luci.http.formvalue("disable_ipv6") or 0
+	luci.sys.exec("sysctl -w net.ipv6.conf.all.disable_ipv6=%s" % disable_ipv6)
+	luci.sys.exec("sed -i 's:^net.ipv6.conf.all.disable_ipv6 = [0-9]*:net.ipv6.conf.all.disable_ipv6=%s:' /etc/sysctl.d/zzz_openmptcprouter.conf" % disable_ipv6)
+	ucic:set("firewall",ucic:get_first("firewall","defaults"),"disable_ipv6",disable_ipv6)
+	ucic:save("firewall")
+	ucic:commit("firewall")
+	
+	-- Done, redirect
+	luci.http.redirect(luci.dispatcher.build_url("admin/system/openmptcprouter/settings"))
+	return
+end
+
 -- This function come from OverTheBox by OVH with very small changes
 function interfaces_status()
 	local ut      = require "luci.util"
diff --git a/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
new file mode 100644
index 000000000..5d3c5d4c5
--- /dev/null
+++ b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
@@ -0,0 +1,29 @@
+<%+header%>
+
+<% if stderr and #stderr > 0 then %><pre class="error"><%=pcdata(stderr)%></pre><% end %>
+<form class="inline" method="post" action="<%=url('admin/system/openmptcprouter/settings_add')%>">
+    <div class="cbi-map">
+	<h2 name="content"><%:Advanced Settings%></h2>
+	<fieldset class="cbi-section" id="networks">
+	<legend><%:Networks settings%></legend>
+	    <div class="cbi-section-descr"></div>
+	    <div class="cbi-value">
+	        <label class="cbi-value-title"><%:IPv4 TCP Keepalive time%></label>
+	        <div class="cbi-value-field">
+		    <input type="text" name="tcp_keepalive_time" class="cbi-input-text" value="<%=tonumber((luci.sys.exec("sysctl net.ipv4.tcp_keepalive_time")):match(" %d+"))%>">
+		</div>
+	    </div>
+	    <div class="cbi-value">
+		<label class="cbi-value-title"><%:Disable IPv6%></label>
+		<div class="cbi-value-field">
+		    <input type="checkbox" name="disable_ipv6" class="cbi-input-checkbox" value="1" <% if tonumber((luci.sys.exec("sysctl net.ipv6.conf.all.disable_ipv6")):match(" %d+")) == 1 %>checked<% end %>>
+		</div>
+	    </div>
+	</fieldset>
+    </div>
+    <div class="cbi-page-actions">
+	<input type="hidden" name="token" value="<%=token%>" />
+	<button class="btn" type="submit">Submit</button>
+    </div>
+</form>
+<%+footer%>
diff --git a/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf b/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
new file mode 100644
index 000000000..12e1506ee
--- /dev/null
+++ b/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
@@ -0,0 +1,2 @@
+net.ipv4.tcp_keepalive_time = 1200
+net.ipv6.conf.all.disable_ipv6 = 0
\ No newline at end of file