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758c37b83d
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31 Commits

Author SHA1 Message Date
Josh Bleecher Snyder
758c37b83d net/netns: thread logf into control functions 
So that darwin can log there without panicking during tests.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-11-18 15:09:51 -08:00
Denton Gentry
5302e4be96 net/portmapper: only print PCP/PMP if VerboseLogs 
Make UPnP, NAT-PMP, and PCP packet reception logs be [v1] so
they will never appear on stdout and instead only go to logtail.

```
$ tailscale netcheck
2021/10/15 22:50:31 portmap: Got PMP response; IP: w.x.y.z, epoch: 1012707
2021/10/15 22:50:31 portmap: Got PCP response: epoch: 1012707

Report:
        * UDP: true
        * IPv4: yes, w.x.y.z:1511
        * IPv6: no
        * MappingVariesByDestIP: true
        * HairPinning: false
        * PortMapping: NAT-PMP, PCP
        * Nearest DERP: San Francisco
        * DERP latency:
                - sfo: 5.9ms   (San Francisco)
                - sea: 24ms    (Seattle)
                - dfw: 45ms    (Dallas)
                - ord: 53.7ms  (Chicago)
                - nyc: 74.1ms  (New York City)
                - tok: 111.1ms (Tokyo)
                - lhr: 139.4ms (London)
                - syd: 152.7ms (Sydney)
                - fra: 153.1ms (Frankfurt)
                - sin: 182.1ms (Singapore)
                - sao: 190.1ms (S_o Paulo)
                - blr: 218.6ms (Bangalore)
```

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
 2021-10-28 10:18:51 -07:00
David Anderson
060ba86baa net/portmapper: ignore IGD SSDP responses from !defaultgw 
Now that we multicast the SSDP query, we can get IGD offers from
devices other than the current device's default gateway. We don't want
to accidentally bind ourselves to those.

Updates #3197

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-27 15:34:27 -07:00
David Anderson
4a65b07e34 net/portmapper: also send UPnP SSDP query to the SSDP multicast address. 
Fixes #3197

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-27 15:02:03 -07:00
Brad Fitzpatrick
640134421e all: update tests to use tstest.MemLogger 
And give MemLogger a mutex, as one caller had, which does match the logf
contract better.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-09-07 20:06:15 -07:00
Brad Fitzpatrick
48bdffd395 net/portmapper: remove GITHUB_ACTIONS check 
It's now redundant.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-09-07 19:28:45 -07:00
David Anderson
b49d9bc74d net/portmapper: fix "running a test" condition. 
Fixes #2686.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-25 20:16:35 -07:00
Brad Fitzpatrick
cd426eaf4c net/portmapper: fix t.Log-after-test-done race in tests 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-08-18 14:39:45 -07:00
julianknodt
b9bd7dbc5d net/portmapper: log upnp information 
This logs some basic statistics for UPnP, so that tailscale can better understand what routers
are being used and how to connect to them.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-10 22:45:00 -07:00
julianknodt
26b6fe7f02 net/portmapper: add PCP integration test 
This adds a PCP test to the IGD test server, by hardcoding in a few observed packets from
Denton's box.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-10 15:14:46 -07:00
Brad Fitzpatrick
bdb93c5942 net/portmapper: actually test something in TestProbeIntegration 
And use dynamic port numbers in tests, as Linux on GitHub Actions and
Windows in general have things running on these ports.

Co-Author: Julian Knodt <julianknodt@gmail.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-08-09 19:49:02 -07:00
Brad Fitzpatrick
e6d4ab2dd6 net/portmapper: add start of self-contained portmapper integration tests 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-08-06 08:34:45 -07:00
julianknodt
98d36ee18d net/portmapper: add hook for use with prev ip 
PCP handles external IPs by allowing the client to specify them in the packet, which is more
explicit than requiring 2 packets from PMP, so allow for future changes to add it in easily.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-06 07:51:30 -07:00
julianknodt
85304d7392 net/portmapper: check disable flags 
Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-06 07:51:30 -07:00
julianknodt
777b711d96 net/portmapper: add pcp portmapping 
This adds PCP portmapping, hooking into the existing PMP portmapping.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-06 07:51:30 -07:00
julianknodt
5c98b1b8d0 net/portmapper: move pcp code to separate file 
This moves all the PCP code to a separate file in preparation for portmapping with PCP.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-08-06 07:51:30 -07:00
Josh Bleecher Snyder
a5da4ed981 all: gofmt with Go 1.17 
This adds "//go:build" lines and tidies up existing "// +build" lines.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-08-05 15:54:00 -07:00
Brad Fitzpatrick
fdc081c291 net/portmapper: fix UPnP probing, work against all ports 
Prior to Tailscale 1.12 it detected UPnP on any port.
Starting with Tailscale 1.11.x, it stopped detecting UPnP on all ports.

Then start plumbing its discovered Location header port number to the
code that was assuming port 5000.

Fixes #2109

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-08-04 12:49:49 -07:00
Brad Fitzpatrick
68df379a7d net/portmapper: rename ErrGatewayNotFound to ErrGatewayRange, reword text 
It confused & scared people. And it was just bad.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-07-26 20:30:28 -07:00
Brad Fitzpatrick
7b295f3d21 net/portmapper: disable UPnP on iOS for now 
Updates #2495

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-07-22 13:33:38 -07:00
julianknodt
3a4201e773 net/portmapper: return correct upnp port 
Previously, this was incorrectly returning the internal port, and using that with the external
exposed IP when it did not use WANIPConnection2. In the case when we must provide a port, we
return it instead.

Noticed this while implementing the integration test for upnp.

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-07-21 10:11:47 -07:00
Brad Fitzpatrick
171ec9f8f4 control/{controlknobs,controlclient}: simplify knobs API, fix controlclient crash 
From integration tests elsewhere:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x70 pc=0x845c9b]

goroutine 226 [running]:
tailscale.com/control/controlclient.(*Direct).sendMapRequest(0xc00053e1e0, 0x16670f0, 0xc000353780, 0xffffffffffffffff, 0xc0003e5f10, 0x0, 0x0)
   /home/runner/go/pkg/mod/tailscale.com@v1.1.1-0.20210715222212-1bb6abc604c1/control/controlclient/direct.go:803 +0x19bb
tailscale.com/control/controlclient.(*Direct).PollNetMap(...)
   /home/runner/go/pkg/mod/tailscale.com@v1.1.1-0.20210715222212-1bb6abc604c1/control/controlclient/direct.go:574
tailscale.com/control/controlclient.(*Auto).mapRoutine(0xc00052a1e0)
   /home/runner/go/pkg/mod/tailscale.com@v1.1.1-0.20210715222212-1bb6abc604c1/control/controlclient/auto.go:464 +0x571
created by tailscale.com/control/controlclient.(*Auto).Start
   /home/runner/go/pkg/mod/tailscale.com@v1.1.1-0.20210715222212-1bb6abc604c1/control/controlclient/auto.go:151 +0x65
exit status 2

Also remove types/opt.Bool API addition which is now unnecessary.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-07-15 22:34:50 -07:00
julianknodt
1bb6abc604 net/portmapper: add upnp port mapping 
Add in UPnP portmapping, using goupnp library in order to get the UPnP client and run the
portmapping functions. This rips out anywhere where UPnP used to be in portmapping, and has a
flow separate from PMP and PCP.

RELNOTE=portmapper now supports UPnP mappings

Fixes #682
Updates #2109

Signed-off-by: julianknodt <julianknodt@gmail.com>
 2021-07-15 15:22:12 -07:00
Brad Fitzpatrick
92077ae78c wgengine/magicsock: make portmapping async 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-07-09 11:15:26 -07:00
David Crawshaw
297b3d6fa4 staticcheck.conf: turn off noisy lint errors 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2021-06-18 15:48:20 -07:00
Josh Bleecher Snyder
25df067dd0 all: adapt to opaque netaddr types 
This commit is a mishmash of automated edits using gofmt:

gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w .
gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w .

gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w .
gofmt -r 'a.IP.As16 -> a.IP().As16' -w .
gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w .
gofmt -r 'a.IP.As4 -> a.IP().As4' -w .
gofmt -r 'a.IP.String -> a.IP().String' -w .

And regexps:

\w*(.*)\.Port = (.*)  ->  $1 = $1.WithPort($2)
\w*(.*)\.IP = (.*)  ->  $1 = $1.WithIP($2)

And lots of manual fixups.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-05-16 14:52:00 -07:00
David Anderson
6fb5d4080c net/portmapper: silently handle PCP NOT_AUTHORIZED responses. 
Fixes #1525.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-17 19:44:35 -07:00
Brad Fitzpatrick
44ab0acbdb net/portmapper, wgengine/monitor: cache gateway IP info until link changes 
Cuts down allocs & CPU in steady state (on regular STUN probes) when network
is unchanging.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-15 14:27:39 -07:00
Brad Fitzpatrick
ef7bac2895 tailcfg, net/portmapper, wgengine/magicsock: add NetInfo.HavePortMap 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-09 15:17:24 -08:00
Brad Fitzpatrick
63ed4dd6c9 net/portmapper: fix typo 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-02 12:26:54 -08:00
Brad Fitzpatrick
c64bd587ae net/portmapper: add NAT-PMP client, move port mapping service probing 
* move probing out of netcheck into new net/portmapper package
* use PCP ANNOUNCE op codes for PCP discovery, rather than causing
  short-lived (sub-second) side effects with a 1-second-expiring map +
  delete.
* track when we heard things from the router so we can be less wasteful
  in querying the router's port mapping services in the future
* use portmapper from magicsock to map a public port

Fixes #1298
Fixes #1080
Fixes #1001
Updates #864

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-02-23 09:07:38 -08:00