UPNP port mapping fails on routers that only support permanent lease

[abdes]

Hi there,

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System information

Geth version: geth version
Geth
Version: 1.8.8-unstable
Git Commit: 784aa83
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.10.2
Operating System: linux
GOPATH=
GOROOT=/usr/lib/go

OS & Version: Windows/Linux/OSX
Linux

Commit hash : (if develop)
Git Commit: 784aa83

Expected behaviour

At startup geth attempts to add a port mapping using UPNP. Some routers only support permanent leases (i.e. lifetime = 0). In such scenario, it is expected that geth understands the returned HTTP response and the error in the SOAP message and re-attempts the port mapping with a permanent lease.

Actual behaviour

If the router only supports permanent leases (i.e. lifetime = 0), geth fails to handle the HTTP error response and just abandons the port mapping.

Steps to reproduce the behaviour

Start get behind a NAT using NetGear router R8000 or R6300 or any other router that only supports permanent lease for UPNP port mapping.

Changing p2p/nat.go mapTimeout to 0 results in the UPNP request succeeding.

Backtrace

POST /Public_UPNP_C3 HTTP/1.1
Host: 192.168.1.1:5000
User-Agent: Go-http-client/1.1
Content-Length: 619
CONTENT-TYPE: text/xml; charset="utf-8"
SOAPACTION: "urn:schemas-upnp-org:service:WANIPConnection:1#AddPortMapping"
Accept-Encoding: gzip

<?xml version="1.0" encoding="UTF-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:AddPortMapping xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1"><NewRemoteHost></NewRemoteHost><NewExternalPort>30303</NewExternalPort><NewProtocol>UDP</NewProtocol><NewInternalPort>30303</NewInternalPort><NewInternalClient>192.168.1.49</NewInternalClient><NewEnabled>1</NewEnabled><NewPortMappingDescription>ethereum discovery</NewPortMappingDescription><NewLeaseDuration>1200</NewLeaseDuration></u:AddPortMapping></s:Body></s:Envelope>

HTTP/1.1 500 Internal Server Error
EXT:
CONTENT-TYPE:text/xml
SERVER:Linux/2.6.12 UPnP/1.0 NETGEAR-UPNP/1.0
CONTENT-LENGTH:438

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring>UPnPError</faultstring>
<detail>
<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">
<errorCode>725</errorCode>
<errorDescription>OnlyPermanentLeasesSupported</errorDescription></UPnPError>
</detail>
</s:Fault>
</s:Body>
</s:Envelope>

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[abdes]

This is still a bug

[anjmao]

In Mysterium we solved this issue by retrying with 0 lifetime https://github.com/mysteriumnetwork/node/blob/master/nat/mapping/port_mapping.go#L113

[fjl]

Probably a good idea for us too.

[fjl]

There is also #2380 which could be tackled at the same time.