mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-26 11:35:35 +00:00
361 lines
12 KiB
Go
361 lines
12 KiB
Go
|
// Copyright (c) Tailscale Inc & AUTHORS
|
||
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
||
|
|
|
||
|
|
package portmapper
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"encoding/xml"
|
||
|
|
"net/http"
|
||
|
|
"net/url"
|
||
|
|
"strings"
|
||
|
|
"testing"
|
||
|
|
|
||
|
|
"github.com/tailscale/goupnp"
|
||
|
|
"github.com/tailscale/goupnp/dcps/internetgateway2"
|
||
|
|
)
|
||
|
|
|
||
|
|
// NOTE: this is in a distinct file because the various string constants are
|
||
|
|
// pretty verbose.
|
||
|
|
|
||
|
|
func TestSelectBestService(t *testing.T) {
|
||
|
|
mustParseURL := func(ss string) *url.URL {
|
||
|
|
u, err := url.Parse(ss)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error parsing URL %q: %v", ss, err)
|
||
|
|
}
|
||
|
|
return u
|
||
|
|
}
|
||
|
|
|
||
|
|
// Run a fake IGD server to respond to UPnP requests.
|
||
|
|
igd, err := NewTestIGD(t.Logf, TestIGDOptions{UPnP: true})
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer igd.Close()
|
||
|
|
|
||
|
|
testCases := []struct {
|
||
|
|
name string
|
||
|
|
rootDesc string
|
||
|
|
control map[string]map[string]any
|
||
|
|
want string // controlURL field
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
name: "single_device",
|
||
|
|
rootDesc: testRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
// Service that's up and should be selected.
|
||
|
|
"/ctl/IPConn": {
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponse,
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/ctl/IPConn",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "first_device_disconnected",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
// Service that's down; it's important that this is the
|
||
|
|
// one that's down since it's ordered first in the XML
|
||
|
|
// and we want to verify that our code properly queries
|
||
|
|
// and then skips it.
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponseDisconnected,
|
||
|
|
// NOTE: nothing else should be called
|
||
|
|
// if GetStatusInfo returns a
|
||
|
|
// disconnected result
|
||
|
|
},
|
||
|
|
// Service that's up and should be selected.
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponse,
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/xstnsgeuyh/wanipconn-7",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "prefer_public_external_IP",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
// Service with a private external IP; order matters as above.
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponsePrivate,
|
||
|
|
},
|
||
|
|
// Service that's up and should be selected.
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponse,
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/xstnsgeuyh/wanipconn-7",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "all_private_external_IPs",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponsePrivate,
|
||
|
|
},
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponsePrivate,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/yomkmsnooi/wanipconn-1", // since this is first in the XML
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "nothing_connected",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponseDisconnected,
|
||
|
|
},
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponseDisconnected,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/yomkmsnooi/wanipconn-1", // since this is first in the XML
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "GetStatusInfo_errors",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": func(_ string) (int, string) {
|
||
|
|
return http.StatusInternalServerError, "internal error"
|
||
|
|
},
|
||
|
|
},
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetStatusInfo": func(_ string) (int, string) {
|
||
|
|
return http.StatusNotFound, "not found"
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/yomkmsnooi/wanipconn-1", // since this is first in the XML
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "GetExternalIPAddress_bad_ip",
|
||
|
|
rootDesc: testSelectRootDesc,
|
||
|
|
control: map[string]map[string]any{
|
||
|
|
"/upnp/control/yomkmsnooi/wanipconn-1": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponseInvalid,
|
||
|
|
},
|
||
|
|
"/upnp/control/xstnsgeuyh/wanipconn-7": {
|
||
|
|
"GetStatusInfo": testGetStatusInfoResponse,
|
||
|
|
"GetExternalIPAddress": testGetExternalIPAddressResponse,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
want: "/upnp/control/xstnsgeuyh/wanipconn-7",
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, tt := range testCases {
|
||
|
|
t.Run(tt.name, func(t *testing.T) {
|
||
|
|
// Ensure that we're using our test IGD server for all requests.
|
||
|
|
rootDesc := strings.ReplaceAll(tt.rootDesc, "@SERVERURL@", igd.ts.URL)
|
||
|
|
|
||
|
|
igd.SetUPnPHandler(&upnpServer{
|
||
|
|
t: t,
|
||
|
|
Desc: rootDesc,
|
||
|
|
Control: tt.control,
|
||
|
|
})
|
||
|
|
c := newTestClient(t, igd)
|
||
|
|
t.Logf("Listening on upnp=%v", c.testUPnPPort)
|
||
|
|
defer c.Close()
|
||
|
|
|
||
|
|
// Ensure that we're using the HTTP client that talks to our test IGD server
|
||
|
|
ctx := context.Background()
|
||
|
|
ctx = goupnp.WithHTTPClient(ctx, c.upnpHTTPClientLocked())
|
||
|
|
|
||
|
|
loc := mustParseURL(igd.ts.URL)
|
||
|
|
rootDev := mustParseRootDev(t, rootDesc, loc)
|
||
|
|
|
||
|
|
svc, err := selectBestService(ctx, t.Logf, rootDev, loc)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
var controlURL string
|
||
|
|
switch v := svc.(type) {
|
||
|
|
case *internetgateway2.WANIPConnection2:
|
||
|
|
controlURL = v.ServiceClient.Service.ControlURL.Str
|
||
|
|
case *internetgateway2.WANIPConnection1:
|
||
|
|
controlURL = v.ServiceClient.Service.ControlURL.Str
|
||
|
|
case *internetgateway2.WANPPPConnection1:
|
||
|
|
controlURL = v.ServiceClient.Service.ControlURL.Str
|
||
|
|
default:
|
||
|
|
t.Fatalf("unknown client type: %T", v)
|
||
|
|
}
|
||
|
|
|
||
|
|
if controlURL != tt.want {
|
||
|
|
t.Errorf("mismatched controlURL: got=%q want=%q", controlURL, tt.want)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func mustParseRootDev(t *testing.T, devXML string, loc *url.URL) *goupnp.RootDevice {
|
||
|
|
decoder := xml.NewDecoder(strings.NewReader(devXML))
|
||
|
|
decoder.DefaultSpace = goupnp.DeviceXMLNamespace
|
||
|
|
decoder.CharsetReader = goupnp.CharsetReaderDefault
|
||
|
|
|
||
|
|
root := new(goupnp.RootDevice)
|
||
|
|
if err := decoder.Decode(root); err != nil {
|
||
|
|
t.Fatalf("error decoding device XML: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Ensure the URLBase is set properly; this is how DeviceByURL does it.
|
||
|
|
var urlBaseStr string
|
||
|
|
if root.URLBaseStr != "" {
|
||
|
|
urlBaseStr = root.URLBaseStr
|
||
|
|
} else {
|
||
|
|
urlBaseStr = loc.String()
|
||
|
|
}
|
||
|
|
urlBase, err := url.Parse(urlBaseStr)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error parsing URL %q: %v", urlBaseStr, err)
|
||
|
|
}
|
||
|
|
root.SetURLBase(urlBase)
|
||
|
|
|
||
|
|
return root
|
||
|
|
}
|
||
|
|
|
||
|
|
// Note: adapted from mikrotikRootDescXML with addresses replaced with
|
||
|
|
// localhost, and unnecessary fields removed.
|
||
|
|
const testSelectRootDesc = `<?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>
|
||
|
|
<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>
|
||
|
|
<presentationURL>@SERVERURL@</presentationURL>
|
||
|
|
</device>
|
||
|
|
<URLBase>@SERVERURL@</URLBase>
|
||
|
|
</root>`
|
||
|
|
|
||
|
|
const testGetStatusInfoResponseDisconnected = `<?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>Disconnected</NewConnectionStatus>
|
||
|
|
<NewLastConnectionError>ERROR_NONE</NewLastConnectionError>
|
||
|
|
<NewUptime>0</NewUptime>
|
||
|
|
</u:GetStatusInfoResponse>
|
||
|
|
</s:Body>
|
||
|
|
</s:Envelope>
|
||
|
|
`
|
||
|
|
|
||
|
|
const testGetExternalIPAddressResponsePrivate = `<?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>10.9.8.7</NewExternalIPAddress>
|
||
|
|
</u:GetExternalIPAddressResponse>
|
||
|
|
</s:Body>
|
||
|
|
</s:Envelope>
|
||
|
|
`
|
||
|
|
|
||
|
|
const testGetExternalIPAddressResponseInvalid = `<?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>not-an-ip-addr</NewExternalIPAddress>
|
||
|
|
</u:GetExternalIPAddressResponse>
|
||
|
|
</s:Body>
|
||
|
|
</s:Envelope>
|
||
|
|
`
|