From: Florian Eckert <fe@dev.tdt.de>
Date: Wed, 9 May 2018 11:48:27 +0000 (+0200)
Subject: luci-app-mwan3: pin diag ping command to interface device
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=commitdiff_plain;h=ee54a9542f7685ffa7c41ceaacedc0af9004d1a0

luci-app-mwan3: pin diag ping command to interface device

If the physical device is not set in the diag_command then the ping will
always use the route with the lowest metric from the default routing
table.
To fix this add the physical device of the logical interface to the ping
command.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
---

diff --git a/applications/luci-app-mwan3/luasrc/controller/mwan3.lua b/applications/luci-app-mwan3/luasrc/controller/mwan3.lua
index 01e40d994..18c2135e4 100644
--- a/applications/luci-app-mwan3/luasrc/controller/mwan3.lua
+++ b/applications/luci-app-mwan3/luasrc/controller/mwan3.lua
@@ -97,9 +97,9 @@ function diagnosticsData(interface, task)
 		return interfaceNumber
 	end
 
-	function diag_command(cmd, addr)
+	function diag_command(cmd, device, addr)
 		if addr and addr:match("^[a-zA-Z0-9%-%.:_]+$") then
-			local util = io.popen(cmd % ut.shellquote(addr))
+			local util = io.popen(cmd %{ut.shellquote(device), ut.shellquote(addr)})
 			if util then
 				while true do
 					local ln = util:read("*l")
@@ -145,7 +145,7 @@ function diagnosticsData(interface, task)
 		if task == "ping_gateway" then
 			local gateway = get_gateway(interface)
 			if gateway ~= nil then
-				diag_command("ping -c 5 -W 1 %s 2>&1", gateway)
+				diag_command("ping -I %s -c 5 -W 1 %s 2>&1", device, gateway)
 			else
 				luci.http.prepare_content("text/plain")
 				luci.http.write(string.format("No gateway for interface %s found.", interface))
@@ -154,7 +154,7 @@ function diagnosticsData(interface, task)
 			local trackips = uci:get("mwan3", interface, "track_ip")
 			if #trackips > 0 then
 				for i in pairs(trackips) do
-					diag_command("ping -c 5 -W 1 %s 2>&1", trackips[i])
+					diag_command("ping -I %s -c 5 -W 1 %s 2>&1", device, trackips[i])
 				end
 			else
 				luci.http.write(string.format("No tracking Hosts for interface %s defined.", interface))