From: Steven Barth <steven@midlink.org>
Date: Sun, 30 Nov 2008 17:22:48 +0000 (+0000)
Subject: Optimized conntrack (thanks to Joe Burpee)
X-Git-Tag: 0.9.0~929
X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fluci.git;a=commitdiff_plain;h=5734545388e6661c3e9040c53262bc3ba54fa81e

Optimized conntrack (thanks to Joe Burpee)
---

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 2b9d9a3c5..948da5b1e 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -266,19 +266,21 @@ end
 -- @return	Table with the currently tracked IP connections
 function net.conntrack()
 	local connt = {}
-	if luci.fs.access("/proc/net/nf_conntrack") then
+	if luci.fs.access("/proc/net/nf_conntrack", "r") then
 		for line in io.lines("/proc/net/nf_conntrack") do
+			line = line:match "^(.-( [^ =]+=).-)%2"
 			local entry, flags = _parse_mixed_record(line, " +")
 			entry.layer3 = flags[1]
-			entry.layer4 = flags[2]
+			entry.layer4 = flags[3]
 			for i=1, #entry do
 				entry[i] = nil
 			end
 
 			connt[#connt+1] = entry
 		end
-	elseif luci.fs.access("/proc/net/ip_conntrack") then
+	elseif luci.fs.access("/proc/net/ip_conntrack", "r") then
 		for line in io.lines("/proc/net/ip_conntrack") do
+			line = line:match "^(.-( [^ =]+=).-)%2"
 			local entry, flags = _parse_mixed_record(line, " +")
 			entry.layer3 = "ipv4"
 			entry.layer4 = flags[1]
@@ -757,7 +759,7 @@ function _parse_mixed_record(cnt, delimiter)
 
 	for i, l in pairs(luci.util.split(luci.util.trim(cnt), "\n")) do
 		for j, f in pairs(luci.util.split(luci.util.trim(l), delimiter, nil, true)) do
-			local k, x, v = f:match('([^%s][^:=]+) *([:=]*) *"*([^\n"]*)"*')
+			local k, x, v = f:match('([^%s][^:=]*) *([:=]*) *"*([^\n"]*)"*')
 
 			if k then
 				if x == "" then
diff --git a/modules/admin-full/luasrc/model/cbi/admin_network/conntrack.lua b/modules/admin-full/luasrc/model/cbi/admin_network/conntrack.lua
index aa7f7c21c..f1c90d695 100644
--- a/modules/admin-full/luasrc/model/cbi/admin_network/conntrack.lua
+++ b/modules/admin-full/luasrc/model/cbi/admin_network/conntrack.lua
@@ -22,7 +22,7 @@ t:option(DummyValue, "IP address", translate("ipaddress"))
 t:option(DummyValue, "HW address", translate("macaddress"))
 t:option(DummyValue, "Device", translate("interface"))
 
-t = f:section(Table, luci.sys.net.conntrack(), translate("a_n_conntrack"))
+t = f:section(Table, luci.sys.net.conntrack() or {}, translate("a_n_conntrack"))
 l3 = t:option(DummyValue, "layer3", translate("network"))
 function l3.cfgvalue(self, ...)
 	return DummyValue.cfgvalue(self, ...):upper()