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tailscale/net/portmapper/upnp_test.go
Will Norris 3ec5be3f51 all: remove AUTHORS file and references to it 
This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.

A Brief History of AUTHORS files
---

The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.

The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".

This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.

Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:

> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.

It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.

In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.

Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.

The source file changes were purely mechanical with:

    git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'

Updates #cleanup

Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
2026-01-23 15:49:45 -08:00

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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package portmapper
import (
"context"
"encoding/xml"
"fmt"
"io"
"net"
"net/http"
"net/http/httptest"
"net/netip"
"reflect"
"regexp"
"slices"
"sync/atomic"
"testing"
"tailscale.com/net/portmapper/portmappertype"
"tailscale.com/tstest"
)
// Google Wifi
const (
googleWifiUPnPDisco = "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=120\r\nST: urn:schemas-upnp-org:device:InternetGatewayDevice:2\r\nUSN: uuid:a9708184-a6c0-413a-bbac-11bcf7e30ece::urn:schemas-upnp-org:device:InternetGatewayDevice:2\r\nEXT:\r\nSERVER: Linux/5.4.0-1034-gcp UPnP/1.1 MiniUPnPd/1.9\r\nLOCATION: http://192.168.86.1:5000/rootDesc.xml\r\nOPT: \"http://schemas.upnp.org/upnp/1/0/\"; ns=01\r\n01-NLS: 1\r\nBOOTID.UPNP.ORG: 1\r\nCONFIGID.UPNP.ORG: 1337\r\n\r\n"
googleWifiRootDescXML = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0"><specVersion><major>1</major><minor>0</minor></specVersion><device><deviceType>urn:schemas-upnp-org:device:InternetGatewayDevice:2</deviceType><friendlyName>OnHub</friendlyName><manufacturer>Google</manufacturer><manufacturerURL>http://google.com/</manufacturerURL><modelDescription>Wireless Router</modelDescription><modelName>OnHub</modelName><modelNumber>1</modelNumber><modelURL>https://on.google.com/hub/</modelURL><serialNumber>00000000</serialNumber><UDN>uuid:a9708184-a6c0-413a-bbac-11bcf7e30ece</UDN><serviceList><service><serviceType>urn:schemas-upnp-org:service:Layer3Forwarding:1</serviceType><serviceId>urn:upnp-org:serviceId:Layer3Forwarding1</serviceId><controlURL>/ctl/L3F</controlURL><eventSubURL>/evt/L3F</eventSubURL><SCPDURL>/L3F.xml</SCPDURL></service><service><serviceType>urn:schemas-upnp-org:service:DeviceProtection:1</serviceType><serviceId>urn:upnp-org:serviceId:DeviceProtection1</serviceId><controlURL>/ctl/DP</controlURL><eventSubURL>/evt/DP</eventSubURL><SCPDURL>/DP.xml</SCPDURL></service></serviceList><deviceList><device><deviceType>urn:schemas-upnp-org:device:WANDevice:2</deviceType><friendlyName>WANDevice</friendlyName><manufacturer>MiniUPnP</manufacturer><manufacturerURL>http://miniupnp.free.fr/</manufacturerURL><modelDescription>WAN Device</modelDescription><modelName>WAN Device</modelName><modelNumber>20210414</modelNumber><modelURL>http://miniupnp.free.fr/</modelURL><serialNumber>00000000</serialNumber><UDN>uuid:a9708184-a6c0-413a-bbac-11bcf7e30ecf</UDN><UPC>000000000000</UPC><serviceList><service><serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType><serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId><controlURL>/ctl/CmnIfCfg</controlURL><eventSubURL>/evt/CmnIfCfg</eventSubURL><SCPDURL>/WANCfg.xml</SCPDURL></service></serviceList><deviceList><device><deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:2</deviceType><friendlyName>WANConnectionDevice</friendlyName><manufacturer>MiniUPnP</manufacturer><manufacturerURL>http://miniupnp.free.fr/</manufacturerURL><modelDescription>MiniUPnP daemon</modelDescription><modelName>MiniUPnPd</modelName><modelNumber>20210414</modelNumber><modelURL>http://miniupnp.free.fr/</modelURL><serialNumber>00000000</serialNumber><UDN>uuid:a9708184-a6c0-413a-bbac-11bcf7e30ec0</UDN><UPC>000000000000</UPC><serviceList><service><serviceType>urn:schemas-upnp-org:service:WANIPConnection:2</serviceType><serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId><controlURL>/ctl/IPConn</controlURL><eventSubURL>/evt/IPConn</eventSubURL><SCPDURL>/WANIPCn.xml</SCPDURL></service></serviceList></device></deviceList></device></deviceList><presentationURL>http://testwifi.here/</presentationURL></device></root>`
// pfSense 2.5.0-RELEASE / FreeBSD 12.2-STABLE
pfSenseUPnPDisco = "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=120\r\nST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\nUSN: uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\nEXT:\r\nSERVER: FreeBSD/12.2-STABLE UPnP/1.1 MiniUPnPd/2.2.1\r\nLOCATION: http://192.168.1.1:2189/rootDesc.xml\r\nOPT: \"http://schemas.upnp.org/upnp/1/0/\"; ns=01\r\n01-NLS: 1627958564\r\nBOOTID.UPNP.ORG: 1627958564\r\nCONFIGID.UPNP.ORG: 1337\r\n\r\n"
pfSenseRootDescXML = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0" configId="1337"><specVersion><major>1</major><minor>1</minor></specVersion><device><deviceType>urn:schemas-upnp-org:device:InternetGatewayDevice:1</deviceType><friendlyName>FreeBSD router</friendlyName><manufacturer>FreeBSD</manufacturer><manufacturerURL>http://www.freebsd.org/</manufacturerURL><modelDescription>FreeBSD router</modelDescription><modelName>FreeBSD router</modelName><modelNumber>2.5.0-RELEASE</modelNumber><modelURL>http://www.freebsd.org/</modelURL><serialNumber>BEE7052B</serialNumber><UDN>uuid:bee7052b-49e8-3597-b545-55a1e38ac11</UDN><serviceList><service><serviceType>urn:schemas-upnp-org:service:Layer3Forwarding:1</serviceType><serviceId>urn:upnp-org:serviceId:L3Forwarding1</serviceId><SCPDURL>/L3F.xml</SCPDURL><controlURL>/ctl/L3F</controlURL><eventSubURL>/evt/L3F</eventSubURL></service></serviceList><deviceList><device><deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType><friendlyName>WANDevice</friendlyName><manufacturer>MiniUPnP</manufacturer><manufacturerURL>http://miniupnp.free.fr/</manufacturerURL><modelDescription>WAN Device</modelDescription><modelName>WAN Device</modelName><modelNumber>20210205</modelNumber><modelURL>http://miniupnp.free.fr/</modelURL><serialNumber>BEE7052B</serialNumber><UDN>uuid:bee7052b-49e8-3597-b545-55a1e38ac12</UDN><UPC>000000000000</UPC><serviceList><service><serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType><serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId><SCPDURL>/WANCfg.xml</SCPDURL><controlURL>/ctl/CmnIfCfg</controlURL><eventSubURL>/evt/CmnIfCfg</eventSubURL></service></serviceList><deviceList><device><deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType><friendlyName>WANConnectionDevice</friendlyName><manufacturer>MiniUPnP</manufacturer><manufacturerURL>http://miniupnp.free.fr/</manufacturerURL><modelDescription>MiniUPnP daemon</modelDescription><modelName>MiniUPnPd</modelName><modelNumber>20210205</modelNumber><modelURL>http://miniupnp.free.fr/</modelURL><serialNumber>BEE7052B</serialNumber><UDN>uuid:bee7052b-49e8-3597-b545-55a1e38ac13</UDN><UPC>000000000000</UPC><serviceList><service><serviceType>urn:schemas-upnp-org:service:WANIPConnection:1</serviceType><serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId><SCPDURL>/WANIPCn.xml</SCPDURL><controlURL>/ctl/IPConn</controlURL><eventSubURL>/evt/IPConn</eventSubURL></service></serviceList></device></deviceList></device></deviceList><presentationURL>https://192.168.1.1/</presentationURL></device></root>`
// Sagemcom FAST3890V3, https://github.com/tailscale/tailscale/issues/3557
sagemcomUPnPDisco = "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=1800\r\nDATE: Tue, 14 Dec 2021 07:51:29 GMT\r\nEXT:\r\nLOCATION: http://192.168.0.1:49153/69692b70/gatedesc0b.xml\r\nOPT: \"http://schemas.upnp.org/upnp/1/0/\"; ns=01\r\n01-NLS: cabd6488-1dd1-11b2-9e52-a7461e1f098e\r\nSERVER: \r\nUser-Agent: redsonic\r\nST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\nUSN: uuid:75802409-bccb-40e7-8e6c-fa095ecce13e::urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\n\r\n"
// Huawei, https://github.com/tailscale/tailscale/issues/6320
huaweiUPnPDisco = "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=1800\r\nDATE: Fri, 25 Nov 2022 07:04:37 GMT\r\nEXT:\r\nLOCATION: http://192.168.1.1:49652/49652gatedesc.xml\r\nOPT: \"http://schemas.upnp.org/upnp/1/0/\"; ns=01\r\n01-NLS: ce8dd8b0-732d-11be-a4a1-a2b26c8915fb\r\nSERVER: Linux/4.4.240, UPnP/1.0, Portable SDK for UPnP devices/1.12.1\r\nX-User-Agent: UPnP/1.0 DLNADOC/1.50\r\nST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\nUSN: uuid:00e0fc37-2525-2828-2500-0C31DCD93368::urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\n\r\n"
// Mikrotik CHR v7.10, https://github.com/tailscale/tailscale/issues/8364
mikrotikRootDescXML = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0">
<specVersion>
<major>1</major>
<minor>0</minor>
</specVersion>
<device>
<deviceType>urn:schemas-upnp-org:device:InternetGatewayDevice:1</deviceType>
<friendlyName>MikroTik Router</friendlyName>
<manufacturer>MikroTik</manufacturer>
<manufacturerURL>https://www.mikrotik.com/</manufacturerURL>
<modelName>Router OS</modelName>
<UDN>uuid:UUID-MIKROTIK-INTERNET-GATEWAY-DEVICE-</UDN>
<iconList>
<icon>
<mimetype>image/gif</mimetype>
<width>16</width>
<height>16</height>
<depth>8</depth>
<url>/logo16.gif</url>
</icon>
<icon>
<mimetype>image/gif</mimetype>
<width>32</width>
<height>32</height>
<depth>8</depth>
<url>/logo32.gif</url>
</icon>
<icon>
<mimetype>image/gif</mimetype>
<width>48</width>
<height>48</height>
<depth>8</depth>
<url>/logo48.gif</url>
</icon>
</iconList>
<serviceList>
<service>
<serviceType>urn:schemas-microsoft-com:service:OSInfo:1</serviceType>
<serviceId>urn:microsoft-com:serviceId:OSInfo1</serviceId>
<SCPDURL>/osinfo.xml</SCPDURL>
<controlURL>/upnp/control/oqjsxqshhz/osinfo</controlURL>
<eventSubURL>/upnp/event/cwzcyndrjf/osinfo</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType>
<friendlyName>WAN Device</friendlyName>
<manufacturer>MikroTik</manufacturer>
<manufacturerURL>https://www.mikrotik.com/</manufacturerURL>
<modelName>Router OS</modelName>
<UDN>uuid:UUID-MIKROTIK-WAN-DEVICE--1</UDN>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId>
<SCPDURL>/wancommonifc-1.xml</SCPDURL>
<controlURL>/upnp/control/ivvmxhunyq/wancommonifc-1</controlURL>
<eventSubURL>/upnp/event/mkjzdqvryf/wancommonifc-1</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WAN Connection Device</friendlyName>
<manufacturer>MikroTik</manufacturer>
<manufacturerURL>https://www.mikrotik.com/</manufacturerURL>
<modelName>Router OS</modelName>
<UDN>uuid:UUID-MIKROTIK-WAN-CONNECTION-DEVICE--1</UDN>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANIPConnection:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId>
<SCPDURL>/wanipconn-1.xml</SCPDURL>
<controlURL>/upnp/control/yomkmsnooi/wanipconn-1</controlURL>
<eventSubURL>/upnp/event/veeabhzzva/wanipconn-1</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
<device>
<deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType>
<friendlyName>WAN Device</friendlyName>
<manufacturer>MikroTik</manufacturer>
<manufacturerURL>https://www.mikrotik.com/</manufacturerURL>
<modelName>Router OS</modelName>
<UDN>uuid:UUID-MIKROTIK-WAN-DEVICE--7</UDN>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId>
<SCPDURL>/wancommonifc-7.xml</SCPDURL>
<controlURL>/upnp/control/vzcyyzzttz/wancommonifc-7</controlURL>
<eventSubURL>/upnp/event/womwbqtbkq/wancommonifc-7</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WAN Connection Device</friendlyName>
<manufacturer>MikroTik</manufacturer>
<manufacturerURL>https://www.mikrotik.com/</manufacturerURL>
<modelName>Router OS</modelName>
<UDN>uuid:UUID-MIKROTIK-WAN-CONNECTION-DEVICE--7</UDN>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANIPConnection:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId>
<SCPDURL>/wanipconn-7.xml</SCPDURL>
<controlURL>/upnp/control/xstnsgeuyh/wanipconn-7</controlURL>
<eventSubURL>/upnp/event/rscixkusbs/wanipconn-7</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
</deviceList>
<disabledForTestPresentationURL>http://10.0.0.1/</disabledForTestPresentationURL>
<presentationURL>http://127.0.0.1/</presentationURL>
</device>
<disabledForTestURLBase>http://10.0.0.1:2828</disabledForTestURLBase>
</root>
`
// Huawei, https://github.com/tailscale/tailscale/issues/10911
huaweiRootDescXML = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0">
<specVersion>
<major>1</major>
<minor>0</minor>
</specVersion>
<device>
<deviceType>urn:dslforum-org:device:InternetGatewayDevice:1</deviceType>
<friendlyName>HG531 V1</friendlyName>
<manufacturer>Huawei Technologies Co., Ltd.</manufacturer>
<manufacturerURL>http://www.huawei.com</manufacturerURL>
<modelDescription>Huawei Home Gateway</modelDescription>
<modelName>HG531 V1</modelName>
<modelNumber>Huawei Model</modelNumber>
<modelURL>http://www.huawei.com</modelURL>
<serialNumber>G6J8W15326003974</serialNumber>
<UDN>uuid:00e0fc37-2626-2828-2600-587f668bdd9a</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:www-huawei-com:service:DeviceConfig:1</serviceType>
<serviceId>urn:www-huawei-com:serviceId:DeviceConfig1</serviceId>
<SCPDURL>/desc/DevCfg.xml</SCPDURL>
<controlURL>/ctrlt/DeviceConfig_1</controlURL>
<eventSubURL>/evt/DeviceConfig_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:LANConfigSecurity:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:LANConfigSecurity1</serviceId>
<SCPDURL>/desc/LANSec.xml</SCPDURL>
<controlURL>/ctrlt/LANConfigSecurity_1</controlURL>
<eventSubURL>/evt/LANConfigSecurity_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:Layer3Forwarding:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:Layer3Forwarding1</serviceId>
<SCPDURL>/desc/L3Fwd.xml</SCPDURL>
<controlURL>/ctrlt/Layer3Forwarding_1</controlURL>
<eventSubURL>/evt/Layer3Forwarding_1</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:dslforum-org:device:WANDevice:1</deviceType>
<friendlyName>WANDevice</friendlyName>
<manufacturer>Huawei Technologies Co., Ltd.</manufacturer>
<manufacturerURL>http://www.huawei.com</manufacturerURL>
<modelDescription>Huawei Home Gateway</modelDescription>
<modelName>HG531 V1</modelName>
<modelNumber>Huawei Model</modelNumber>
<modelURL>http://www.huawei.com</modelURL>
<serialNumber>G6J8W15326003974</serialNumber>
<UDN>uuid:00e0fc37-2626-2828-2601-587f668bdd9a</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:dslforum-org:service:WANDSLInterfaceConfig:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WANDSLInterfaceConfig1</serviceId>
<SCPDURL>/desc/WanDslIfCfg.xml</SCPDURL>
<controlURL>/ctrlt/WANDSLInterfaceConfig_1</controlURL>
<eventSubURL>/evt/WANDSLInterfaceConfig_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WANCommonInterfaceConfig:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WANCommonInterfaceConfig1</serviceId>
<SCPDURL>/desc/WanCommonIfc1.xml</SCPDURL>
<controlURL>/ctrlt/WANCommonInterfaceConfig_1</controlURL>
<eventSubURL>/evt/WANCommonInterfaceConfig_1</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:dslforum-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WANConnectionDevice</friendlyName>
<manufacturer>Huawei Technologies Co., Ltd.</manufacturer>
<manufacturerURL>http://www.huawei.com</manufacturerURL>
<modelDescription>Huawei Home Gateway</modelDescription>
<modelName>HG531 V1</modelName>
<modelNumber>Huawei Model</modelNumber>
<modelURL>http://www.huawei.com</modelURL>
<serialNumber>G6J8W15326003974</serialNumber>
<UDN>uuid:00e0fc37-2626-2828-2603-587f668bdd9a</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:dslforum-org:service:WANPPPConnection:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WANPPPConnection1</serviceId>
<SCPDURL>/desc/WanPppConn.xml</SCPDURL>
<controlURL>/ctrlt/WANPPPConnection_1</controlURL>
<eventSubURL>/evt/WANPPPConnection_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WANEthernetConnectionManagement:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WANEthernetConnectionManagement1</serviceId>
<SCPDURL>/desc/WanEthConnMgt.xml</SCPDURL>
<controlURL>/ctrlt/WANEthernetConnectionManagement_1</controlURL>
<eventSubURL>/evt/WANEthernetConnectionManagement_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WANDSLLinkConfig:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WANDSLLinkConfig1</serviceId>
<SCPDURL>/desc/WanDslLink.xml</SCPDURL>
<controlURL>/ctrlt/WANDSLLinkConfig_1</controlURL>
<eventSubURL>/evt/WANDSLLinkConfig_1</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
<device>
<deviceType>urn:dslforum-org:device:LANDevice:1</deviceType>
<friendlyName>LANDevice</friendlyName>
<manufacturer>Huawei Technologies Co., Ltd.</manufacturer>
<manufacturerURL>http://www.huawei.com</manufacturerURL>
<modelDescription>Huawei Home Gateway</modelDescription>
<modelName>HG531 V1</modelName>
<modelNumber>Huawei Model</modelNumber>
<modelURL>http://www.huawei.com</modelURL>
<serialNumber>G6J8W15326003974</serialNumber>
<UDN>uuid:00e0fc37-2626-2828-2602-587f668bdd9a</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:dslforum-org:service:WLANConfiguration:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WLANConfiguration4</serviceId>
<SCPDURL>/desc/WLANCfg.xml</SCPDURL>
<controlURL>/ctrlt/WLANConfiguration_4</controlURL>
<eventSubURL>/evt/WLANConfiguration_4</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WLANConfiguration:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WLANConfiguration3</serviceId>
<SCPDURL>/desc/WLANCfg.xml</SCPDURL>
<controlURL>/ctrlt/WLANConfiguration_3</controlURL>
<eventSubURL>/evt/WLANConfiguration_3</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WLANConfiguration:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WLANConfiguration2</serviceId>
<SCPDURL>/desc/WLANCfg.xml</SCPDURL>
<controlURL>/ctrlt/WLANConfiguration_2</controlURL>
<eventSubURL>/evt/WLANConfiguration_2</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:WLANConfiguration:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:WLANConfiguration1</serviceId>
<SCPDURL>/desc/WLANCfg.xml</SCPDURL>
<controlURL>/ctrlt/WLANConfiguration_1</controlURL>
<eventSubURL>/evt/WLANConfiguration_1</eventSubURL>
</service>
<service>
<serviceType>urn:dslforum-org:service:LANHostConfigManagement:1</serviceType>
<serviceId>urn:dslforum-org:serviceId:LANHostConfigManagement1</serviceId>
<SCPDURL>/desc/LanHostCfgMgmt.xml</SCPDURL>
<controlURL>/ctrlt/LANHostConfigManagement_1</controlURL>
<eventSubURL>/evt/LANHostConfigManagement_1</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
<presentationURL>http://127.0.0.1</presentationURL>
</device>
</root>
`
noSupportedServicesRootDesc = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0">
<specVersion>
<major>1</major>
<minor>0</minor>
</specVersion>
<device>
<deviceType>urn:dslforum-org:device:InternetGatewayDevice:1</deviceType>
<friendlyName>Fake Router</friendlyName>
<manufacturer>Tailscale, Inc</manufacturer>
<manufacturerURL>http://www.tailscale.com</manufacturerURL>
<modelDescription>Fake Router</modelDescription>
<modelName>Test Model</modelName>
<modelNumber>v1</modelNumber>
<modelURL>http://www.tailscale.com</modelURL>
<serialNumber>123456789</serialNumber>
<UDN>uuid:11111111-2222-3333-4444-555555555555</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-microsoft-com:service:OSInfo:1</serviceType>
<serviceId>urn:microsoft-com:serviceId:OSInfo1</serviceId>
<SCPDURL>/osinfo.xml</SCPDURL>
<controlURL>/upnp/control/aaaaaaaaaa/osinfo</controlURL>
<eventSubURL>/upnp/event/aaaaaaaaaa/osinfo</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType>
<friendlyName>WANDevice</friendlyName>
<manufacturer>Tailscale, Inc</manufacturer>
<manufacturerURL>http://www.tailscale.com</manufacturerURL>
<modelDescription>Tailscale Test Router</modelDescription>
<modelName>Test Model</modelName>
<modelNumber>v1</modelNumber>
<modelURL>http://www.tailscale.com</modelURL>
<serialNumber>123456789</serialNumber>
<UDN>uuid:11111111-2222-3333-4444-555555555555</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId>
<controlURL>/ctl/bbbbbbbb</controlURL>
<eventSubURL>/evt/bbbbbbbb</eventSubURL>
<SCPDURL>/WANCfg.xml</SCPDURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WANConnectionDevice</friendlyName>
<manufacturer>Tailscale, Inc</manufacturer>
<manufacturerURL>http://www.tailscale.com</manufacturerURL>
<modelDescription>Tailscale Test Router</modelDescription>
<modelName>Test Model</modelName>
<modelNumber>v1</modelNumber>
<modelURL>http://www.tailscale.com</modelURL>
<serialNumber>123456789</serialNumber>
<UDN>uuid:11111111-2222-3333-4444-555555555555</UDN>
<UPC>000000000001</UPC>
<serviceList>
<service>
<serviceType>urn:tailscale:service:SomethingElse:1</serviceType>
<serviceId>urn:upnp-org:serviceId:TailscaleSomethingElse</serviceId>
<SCPDURL>/desc/SomethingElse.xml</SCPDURL>
<controlURL>/ctrlt/SomethingElse_1</controlURL>
<eventSubURL>/evt/SomethingElse_1</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
</deviceList>
<presentationURL>http://127.0.0.1</presentationURL>
</device>
</root>
`
)
func TestParseUPnPDiscoResponse(t *testing.T) {
tests := []struct {
name string
headers string
want uPnPDiscoResponse
}{
{"google", googleWifiUPnPDisco, uPnPDiscoResponse{
Location: "http://192.168.86.1:5000/rootDesc.xml",
Server: "Linux/5.4.0-1034-gcp UPnP/1.1 MiniUPnPd/1.9",
USN: "uuid:a9708184-a6c0-413a-bbac-11bcf7e30ece::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
}},
{"pfsense", pfSenseUPnPDisco, uPnPDiscoResponse{
Location: "http://192.168.1.1:2189/rootDesc.xml",
Server: "FreeBSD/12.2-STABLE UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
}},
{"sagemcom", sagemcomUPnPDisco, uPnPDiscoResponse{
Location: "http://192.168.0.1:49153/69692b70/gatedesc0b.xml",
Server: "",
USN: "uuid:75802409-bccb-40e7-8e6c-fa095ecce13e::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
}},
{"huawei", huaweiUPnPDisco, uPnPDiscoResponse{
Location: "http://192.168.1.1:49652/49652gatedesc.xml",
Server: "Linux/4.4.240, UPnP/1.0, Portable SDK for UPnP devices/1.12.1",
USN: "uuid:00e0fc37-2525-2828-2500-0C31DCD93368::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := parseUPnPDiscoResponse([]byte(tt.headers))
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("unexpected result:\n got: %+v\nwant: %+v\n", got, tt.want)
}
})
}
}
func TestGetUPnPClient(t *testing.T) {
tests := []struct {
name string
xmlBody string
want string
wantLog string
}{
{
"google",
googleWifiRootDescXML,
"*internetgateway2.WANIPConnection2",
"saw UPnP type WANIPConnection2 at http://127.0.0.1:NNN/rootDesc.xml; OnHub (Google), method=single\n",
},
{
"pfsense",
pfSenseRootDescXML,
"*internetgateway2.WANIPConnection1",
"saw UPnP type WANIPConnection1 at http://127.0.0.1:NNN/rootDesc.xml; FreeBSD router (FreeBSD), method=single\n",
},
{
"mikrotik",
mikrotikRootDescXML,
"*internetgateway2.WANIPConnection1",
"saw UPnP type WANIPConnection1 at http://127.0.0.1:NNN/rootDesc.xml; MikroTik Router (MikroTik), method=none\n",
},
{
"huawei",
huaweiRootDescXML,
"*portmapper.legacyWANPPPConnection1",
"saw UPnP type *portmapper.legacyWANPPPConnection1 at http://127.0.0.1:NNN/rootDesc.xml; HG531 V1 (Huawei Technologies Co., Ltd.), method=single\n",
},
{
"not_supported",
noSupportedServicesRootDesc,
"<nil>",
"",
},
// TODO(bradfitz): find a PPP one in the wild
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.RequestURI == "/rootDesc.xml" {
io.WriteString(w, tt.xmlBody)
return
}
http.NotFound(w, r)
}))
defer ts.Close()
gw, _ := netip.AddrFromSlice(ts.Listener.Addr().(*net.TCPAddr).IP)
gw = gw.Unmap()
ctx := context.Background()
var logBuf tstest.MemLogger
dev, loc, err := getUPnPRootDevice(ctx, logBuf.Logf, DebugKnobs{}, gw, uPnPDiscoResponse{
Location: ts.URL + "/rootDesc.xml",
})
if err != nil {
t.Fatal(err)
}
c, err := selectBestService(ctx, logBuf.Logf, dev, loc)
if err != nil {
t.Fatal(err)
}
got := fmt.Sprintf("%T", c)
if got != tt.want {
t.Errorf("got %v; want %v", got, tt.want)
}
gotLog := regexp.MustCompile(`127\.0\.0\.1:\d+`).ReplaceAllString(logBuf.String(), "127.0.0.1:NNN")
if gotLog != tt.wantLog {
t.Errorf("logged %q; want %q", gotLog, tt.wantLog)
}
})
}
}
func TestGetUPnPPortMapping(t *testing.T) {
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
// This is a very basic fake UPnP server handler.
var sawRequestWithLease atomic.Bool
handlers := map[string]any{
"AddPortMapping": func(body []byte) (int, string) {
// Decode a minimal body to determine whether we skip the request or not.
var req struct {
Protocol string `xml:"NewProtocol"`
InternalPort string `xml:"NewInternalPort"`
ExternalPort string `xml:"NewExternalPort"`
InternalClient string `xml:"NewInternalClient"`
LeaseDuration string `xml:"NewLeaseDuration"`
}
if err := xml.Unmarshal(body, &req); err != nil {
t.Errorf("bad request: %v", err)
return http.StatusBadRequest, "bad request"
}
if req.Protocol != "UDP" {
t.Errorf(`got Protocol=%q, want "UDP"`, req.Protocol)
}
if req.LeaseDuration != "0" {
// Return a fake error to ensure that we fall back to a permanent lease.
sawRequestWithLease.Store(true)
return http.StatusOK, testAddPortMappingPermanentLease
}
// Success!
return http.StatusOK, testAddPortMappingResponse
},
"GetExternalIPAddress": testGetExternalIPAddressResponse,
"GetStatusInfo": testGetStatusInfoResponse,
"DeletePortMapping": "", // Do nothing for test
}
ctx := context.Background()
rootDescsToTest := []string{testRootDesc, mikrotikRootDescXML}
for _, rootDesc := range rootDescsToTest {
igd.SetUPnPHandler(&upnpServer{
t: t,
Desc: rootDesc,
Control: map[string]map[string]any{
"/ctl/IPConn": handlers,
"/upnp/control/yomkmsnooi/wanipconn-1": handlers,
},
})
c := newTestClient(t, igd, nil)
t.Logf("Listening on upnp=%v", c.testUPnPPort)
c.debug.VerboseLogs = true
// Try twice to test the "cache previous mapping" logic.
var (
firstResponse netip.AddrPort
prevPort uint16
)
for i := range 2 {
sawRequestWithLease.Store(false)
mustProbeUPnP(t, ctx, c)
gw, myIP, ok := c.gatewayAndSelfIP()
if !ok {
t.Fatalf("could not get gateway and self IP")
}
t.Logf("gw=%v myIP=%v", gw, myIP)
ext, ok := c.getUPnPPortMapping(ctx, gw, netip.AddrPortFrom(myIP, 12345), prevPort)
if !ok {
t.Fatal("could not get UPnP port mapping")
}
if got, want := ext.Addr(), netip.MustParseAddr("123.123.123.123"); got != want {
t.Errorf("bad external address; got %v want %v", got, want)
}
if !sawRequestWithLease.Load() {
t.Errorf("wanted request with lease, but didn't see one")
}
if i == 0 {
firstResponse = ext
prevPort = ext.Port()
} else if firstResponse != ext {
t.Errorf("got different response on second attempt: (got) %v != %v (want)", ext, firstResponse)
}
t.Logf("external IP: %v", ext)
}
}
}
func TestGetUPnPPortMapping_LeaseDuration(t *testing.T) {
testCases := []struct {
name string
resp string
}{
{"only_permanent_leases", testAddPortMappingPermanentLease},
{"invalid_args", testAddPortMappingPermanentLease_InvalidArgs},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
// This is a very basic fake UPnP server handler.
var sawRequestWithLease atomic.Bool
handlers := map[string]any{
"AddPortMapping": func(body []byte) (int, string) {
// Decode a minimal body to determine whether we skip the request or not.
var req struct {
Protocol string `xml:"NewProtocol"`
InternalPort string `xml:"NewInternalPort"`
ExternalPort string `xml:"NewExternalPort"`
InternalClient string `xml:"NewInternalClient"`
LeaseDuration string `xml:"NewLeaseDuration"`
}
if err := xml.Unmarshal(body, &req); err != nil {
t.Errorf("bad request: %v", err)
return http.StatusBadRequest, "bad request"
}
if req.Protocol != "UDP" {
t.Errorf(`got Protocol=%q, want "UDP"`, req.Protocol)
}
if req.LeaseDuration != "0" {
// Return a fake error to ensure that we fall back to a permanent lease.
sawRequestWithLease.Store(true)
return http.StatusOK, tc.resp
}
return http.StatusOK, testAddPortMappingResponse
},
"GetExternalIPAddress": testGetExternalIPAddressResponse,
"GetStatusInfo": testGetStatusInfoResponse,
"DeletePortMapping": "", // Do nothing for test
}
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
igd.SetUPnPHandler(&upnpServer{
t: t,
Desc: testRootDesc,
Control: map[string]map[string]any{
"/ctl/IPConn": handlers,
"/upnp/control/yomkmsnooi/wanipconn-1": handlers,
},
})
ctx := context.Background()
c := newTestClient(t, igd, nil)
c.debug.VerboseLogs = true
t.Logf("Listening on upnp=%v", c.testUPnPPort)
// Actually test the UPnP port mapping.
mustProbeUPnP(t, ctx, c)
gw, myIP, ok := c.gatewayAndSelfIP()
if !ok {
t.Fatalf("could not get gateway and self IP")
}
t.Logf("gw=%v myIP=%v", gw, myIP)
ext, ok := c.getUPnPPortMapping(ctx, gw, netip.AddrPortFrom(myIP, 12345), 0)
if !ok {
t.Fatal("could not get UPnP port mapping")
}
if got, want := ext.Addr(), netip.MustParseAddr("123.123.123.123"); got != want {
t.Errorf("bad external address; got %v want %v", got, want)
}
if !sawRequestWithLease.Load() {
t.Errorf("wanted request with lease, but didn't see one")
}
t.Logf("external IP: %v", ext)
})
}
}
// TestGetUPnPPortMapping_NoValidServices tests that getUPnPPortMapping doesn't
// crash when a valid UPnP response with no supported services is discovered
// and parsed.
//
// See https://github.com/tailscale/tailscale/issues/10911
func TestGetUPnPPortMapping_NoValidServices(t *testing.T) {
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
igd.SetUPnPHandler(&upnpServer{
t: t,
Desc: noSupportedServicesRootDesc,
})
c := newTestClient(t, igd, nil)
c.debug.VerboseLogs = true
ctx := context.Background()
mustProbeUPnP(t, ctx, c)
gw, myIP, ok := c.gatewayAndSelfIP()
if !ok {
t.Fatalf("could not get gateway and self IP")
}
// This shouldn't panic
_, ok = c.getUPnPPortMapping(ctx, gw, netip.AddrPortFrom(myIP, 12345), 0)
if ok {
t.Fatal("did not expect to get UPnP port mapping")
}
}
// Tests the legacy behaviour with the pre-UPnP standard portmapping service.
func TestGetUPnPPortMapping_Legacy(t *testing.T) {
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
// This is a very basic fake UPnP server handler.
handlers := map[string]any{
"AddPortMapping": testLegacyAddPortMappingResponse,
"GetExternalIPAddress": testLegacyGetExternalIPAddressResponse,
"GetStatusInfo": testLegacyGetStatusInfoResponse,
"DeletePortMapping": "", // Do nothing for test
}
igd.SetUPnPHandler(&upnpServer{
t: t,
Desc: huaweiRootDescXML,
Control: map[string]map[string]any{
"/ctrlt/WANPPPConnection_1": handlers,
},
})
c := newTestClient(t, igd, nil)
c.debug.VerboseLogs = true
ctx := context.Background()
mustProbeUPnP(t, ctx, c)
gw, myIP, ok := c.gatewayAndSelfIP()
if !ok {
t.Fatalf("could not get gateway and self IP")
}
ext, ok := c.getUPnPPortMapping(ctx, gw, netip.AddrPortFrom(myIP, 12345), 0)
if !ok {
t.Fatal("could not get UPnP port mapping")
}
if got, want := ext.Addr(), netip.MustParseAddr("123.123.123.123"); got != want {
t.Errorf("bad external address; got %v want %v", got, want)
}
}
func TestGetUPnPPortMappingNoResponses(t *testing.T) {
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
c := newTestClient(t, igd, nil)
t.Logf("Listening on upnp=%v", c.testUPnPPort)
c.debug.VerboseLogs = true
// Do this before setting uPnPMetas since it invalidates those mappings
// if gw/myIP change.
gw, myIP, _ := c.gatewayAndSelfIP()
t.Run("ErrorContactingUPnP", func(t *testing.T) {
c.mu.Lock()
c.uPnPMetas = []uPnPDiscoResponse{{
Location: "http://127.0.0.1:1/does-not-exist.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
}}
c.mu.Unlock()
_, ok := c.getUPnPPortMapping(context.Background(), gw, netip.AddrPortFrom(myIP, 12345), 0)
if ok {
t.Errorf("expected no mapping when there are no responses")
}
})
}
func TestProcessUPnPResponses(t *testing.T) {
testCases := []struct {
name string
responses []uPnPDiscoResponse
want []uPnPDiscoResponse
}{
{
name: "single",
responses: []uPnPDiscoResponse{{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
}},
want: []uPnPDiscoResponse{{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
}},
},
{
name: "multiple_with_same_location",
responses: []uPnPDiscoResponse{
{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
},
{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
},
},
want: []uPnPDiscoResponse{{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
}},
},
{
name: "multiple_with_different_location",
responses: []uPnPDiscoResponse{
{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
},
{
Location: "http://192.168.100.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
},
},
want: []uPnPDiscoResponse{
// note: this sorts first because we prefer "InternetGatewayDevice:2"
{
Location: "http://192.168.100.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:2",
},
{
Location: "http://192.168.1.1:2828/control.xml",
Server: "Tailscale-Test/1.0 UPnP/1.1 MiniUPnPd/2.2.1",
USN: "uuid:bee7052b-49e8-3597-b545-55a1e38ac11::urn:schemas-upnp-org:device:InternetGatewayDevice:1",
},
},
},
}
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
got := processUPnPResponses(slices.Clone(tt.responses))
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("unexpected result:\n got: %+v\nwant: %+v\n", got, tt.want)
}
})
}
}
// See: https://github.com/tailscale/corp/issues/23538
func TestGetUPnPPortMapping_Invalid(t *testing.T) {
for _, responseAddr := range []string{
"0.0.0.0",
"127.0.0.1",
} {
t.Run(responseAddr, func(t *testing.T) {
igd, err := NewTestIGD(t, TestIGDOptions{UPnP: true})
if err != nil {
t.Fatal(err)
}
defer igd.Close()
// This is a very basic fake UPnP server handler.
handlers := map[string]any{
"AddPortMapping": testAddPortMappingResponse,
"GetExternalIPAddress": makeGetExternalIPAddressResponse(responseAddr),
"GetStatusInfo": testGetStatusInfoResponse,
"DeletePortMapping": "", // Do nothing for test
}
igd.SetUPnPHandler(&upnpServer{
t: t,
Desc: huaweiRootDescXML,
Control: map[string]map[string]any{
"/ctrlt/WANPPPConnection_1": handlers,
},
})
c := newTestClient(t, igd, nil)
c.debug.VerboseLogs = true
ctx := context.Background()
mustProbeUPnP(t, ctx, c)
gw, myIP, ok := c.gatewayAndSelfIP()
if !ok {
t.Fatalf("could not get gateway and self IP")
}
ext, ok := c.getUPnPPortMapping(ctx, gw, netip.AddrPortFrom(myIP, 12345), 0)
if ok {
t.Fatal("did not expect to get UPnP port mapping")
}
if ext.IsValid() {
t.Fatalf("expected no external address; got %v", ext)
}
})
}
}
type upnpServer struct {
t *testing.T
Desc string // root device XML
Control map[string]map[string]any // map["/url"]map["UPnPService"]response
}
func (u *upnpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
u.t.Logf("got UPnP request %s %s", r.Method, r.URL.Path)
if r.URL.Path == "/rootDesc.xml" {
io.WriteString(w, u.Desc)
return
}
if control, ok := u.Control[r.URL.Path]; ok {
u.handleControl(w, r, control)
return
}
u.t.Logf("ignoring request")
http.NotFound(w, r)
}
func (u *upnpServer) handleControl(w http.ResponseWriter, r *http.Request, handlers map[string]any) {
body, err := io.ReadAll(r.Body)
if err != nil {
u.t.Errorf("error reading request body: %v", err)
http.Error(w, "bad request", http.StatusBadRequest)
return
}
// Decode the request type.
var outerRequest struct {
Body struct {
Request struct {
XMLName xml.Name
} `xml:",any"`
Inner string `xml:",innerxml"`
} `xml:"Body"`
}
if err := xml.Unmarshal(body, &outerRequest); err != nil {
u.t.Errorf("bad request: %v", err)
http.Error(w, "bad request", http.StatusBadRequest)
return
}
requestType := outerRequest.Body.Request.XMLName.Local
upnpRequest := outerRequest.Body.Inner
u.t.Logf("UPnP request: %s", requestType)
handler, ok := handlers[requestType]
if !ok {
u.t.Errorf("unhandled UPnP request type %q", requestType)
http.Error(w, "bad request", http.StatusBadRequest)
return
}
switch v := handler.(type) {
case string:
io.WriteString(w, v)
case []byte:
w.Write(v)
// Function handlers
case func(string) string:
io.WriteString(w, v(upnpRequest))
case func([]byte) string:
io.WriteString(w, v([]byte(upnpRequest)))
case func(string) (int, string):
code, body := v(upnpRequest)
w.WriteHeader(code)
io.WriteString(w, body)
case func([]byte) (int, string):
code, body := v([]byte(upnpRequest))
w.WriteHeader(code)
io.WriteString(w, body)
default:
u.t.Fatalf("invalid handler type: %T", v)
http.Error(w, "invalid handler type", http.StatusInternalServerError)
return
}
}
func mustProbeUPnP(tb testing.TB, ctx context.Context, c *Client) portmappertype.ProbeResult {
tb.Helper()
res, err := c.Probe(ctx)
if err != nil {
tb.Fatalf("Probe: %v", err)
}
if !res.UPnP {
tb.Fatalf("didn't detect UPnP")
}
return res
}
const testRootDesc = `<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0" configId="1337">
<specVersion>
<major>1</major>
<minor>1</minor>
</specVersion>
<device>
<deviceType>urn:schemas-upnp-org:device:InternetGatewayDevice:1</deviceType>
<friendlyName>Tailscale Test Router</friendlyName>
<manufacturer>Tailscale</manufacturer>
<manufacturerURL>https://tailscale.com</manufacturerURL>
<modelDescription>Tailscale Test Router</modelDescription>
<modelName>Tailscale Test Router</modelName>
<modelNumber>2.5.0-RELEASE</modelNumber>
<modelURL>https://tailscale.com</modelURL>
<serialNumber>1234</serialNumber>
<UDN>uuid:1974e83b-6dc7-4635-92b3-6a85a4037294</UDN>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType>
<friendlyName>WANDevice</friendlyName>
<manufacturer>MiniUPnP</manufacturer>
<manufacturerURL>http://miniupnp.free.fr/</manufacturerURL>
<modelDescription>WAN Device</modelDescription>
<modelName>WAN Device</modelName>
<modelNumber>20990102</modelNumber>
<modelURL>http://miniupnp.free.fr/</modelURL>
<serialNumber>1234</serialNumber>
<UDN>uuid:1974e83b-6dc7-4635-92b3-6a85a4037294</UDN>
<UPC>000000000000</UPC>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WANConnectionDevice</friendlyName>
<manufacturer>MiniUPnP</manufacturer>
<manufacturerURL>http://miniupnp.free.fr/</manufacturerURL>
<modelDescription>MiniUPnP daemon</modelDescription>
<modelName>MiniUPnPd</modelName>
<modelNumber>20210205</modelNumber>
<modelURL>http://miniupnp.free.fr/</modelURL>
<serialNumber>1234</serialNumber>
<UDN>uuid:1974e83b-6dc7-4635-92b3-6a85a4037294</UDN>
<UPC>000000000000</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANIPConnection:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId>
<SCPDURL>/WANIPCn.xml</SCPDURL>
<controlURL>/ctl/IPConn</controlURL>
<eventSubURL>/evt/IPConn</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
</deviceList>
<presentationURL>https://127.0.0.1/</presentationURL>
</device>
</root>
`
const testAddPortMappingPermanentLease = `<?xml version="1.0"?>
<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>
`
const testAddPortMappingPermanentLease_InvalidArgs = `<?xml version="1.0"?>
<SOAP:Envelope xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<SOAP:Body>
<SOAP:Fault>
<faultcode>SOAP:Client</faultcode>
<faultstring>UPnPError</faultstring>
<detail>
<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">
<errorCode>402</errorCode>
<errorDescription>Invalid Args</errorDescription>
</UPnPError>
</detail>
</SOAP:Fault>
</SOAP:Body>
</SOAP:Envelope>
`
const testAddPortMappingResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:AddPortMappingResponse xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1"/>
</s:Body>
</s:Envelope>
`
const testGetExternalIPAddressResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetExternalIPAddressResponse xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1">
<NewExternalIPAddress>123.123.123.123</NewExternalIPAddress>
</u:GetExternalIPAddressResponse>
</s:Body>
</s:Envelope>
`
const testGetStatusInfoResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetStatusInfoResponse xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1">
<NewConnectionStatus>Connected</NewConnectionStatus>
<NewLastConnectionError>ERROR_NONE</NewLastConnectionError>
<NewUptime>9999</NewUptime>
</u:GetStatusInfoResponse>
</s:Body>
</s:Envelope>
`
const testLegacyAddPortMappingResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:AddPortMappingResponse xmlns:u="urn:dslforum-org:service:WANPPPConnection:1"/>
</s:Body>
</s:Envelope>
`
const testLegacyGetExternalIPAddressResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetExternalIPAddressResponse xmlns:u="urn:dslforum-org:service:WANPPPConnection:1">
<NewExternalIPAddress>123.123.123.123</NewExternalIPAddress>
</u:GetExternalIPAddressResponse>
</s:Body>
</s:Envelope>
`
const testLegacyGetStatusInfoResponse = `<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetStatusInfoResponse xmlns:u="urn:dslforum-org:service:WANPPPConnection:1">
<NewConnectionStatus>Connected</NewConnectionStatus>
<NewLastConnectionError>ERROR_NONE</NewLastConnectionError>
<NewUpTime>9999</NewUpTime>
</u:GetStatusInfoResponse>
</s:Body>
</s:Envelope>
`
func makeGetExternalIPAddressResponse(ip string) string {
return fmt.Sprintf(`<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetExternalIPAddressResponse xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1">
<NewExternalIPAddress>%s</NewExternalIPAddress>
</u:GetExternalIPAddressResponse>
</s:Body>
</s:Envelope>
`, ip)
}
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