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731 Commits

Author SHA1 Message Date
David Anderson
07bf4eb685 wgengine: rename Fake to RespondToPing. 
"Fake" doesn't mean a lot any more, given that many components
of the engine can be faked out, including in valid production
configurations like userspace-networking.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-28 21:45:02 -07:00
David Anderson
0fb738760f wgengine: make Tun optional again, default to fake. 
This makes setup more explicit in prod codepaths, without
requiring a bunch of arguments or helpers for tests and
userspace mode.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-28 21:45:02 -07:00
Brad Fitzpatrick
e18c3a7d84 wgengine: optimize isLocalAddr a bit 
On macOS/iOS, this removes a map lookup per outgoing packet.

Noticed it while reading code, not from profiles, but can't hurt.

BenchmarkGenLocalAddrFunc
BenchmarkGenLocalAddrFunc/map1
BenchmarkGenLocalAddrFunc/map1-4                16184868                69.78 ns/op
BenchmarkGenLocalAddrFunc/map2
BenchmarkGenLocalAddrFunc/map2-4                16878140                70.73 ns/op
BenchmarkGenLocalAddrFunc/or1
BenchmarkGenLocalAddrFunc/or1-4                 623055721                1.950 ns/op
BenchmarkGenLocalAddrFunc/or2
BenchmarkGenLocalAddrFunc/or2-4                 472493098                2.589 ns/op

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-28 21:23:25 -07:00
David Anderson
93a4aa697c wgengine: default Router to a no-op router. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-28 18:59:48 -07:00
David Anderson
440effb21a wgengine: remove Config.TUN argument. 2021-03-28 18:45:17 -07:00
Josh Bleecher Snyder
4954fbfda6 wgengine: extend TestWatchdog timeout on macOS 
This works around the close syscall being slow.
We can revert this if we find a fix or if Apple makes close fast again.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-03-27 09:27:11 -07:00
David Anderson
2df8adef9d wgengine: make the tun.Device required at construction. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-27 00:33:09 -07:00
David Anderson
016de16b2e net/tstun: rename TUN to Wrapper. 
The tstun packagen contains both constructors for generic tun
Devices, and a wrapper that provides additional functionality.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 23:15:22 -07:00
David Anderson
82ab7972f4 net/tstun: rename NewFakeTUN to NewFake. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 22:46:47 -07:00
David Anderson
588b70f468 net/tstun: merge in wgengine/tstun. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 22:31:54 -07:00
David Anderson
2b4bfeda1a wgengine: pass in an explicit router.Router, rather than a generator. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 22:01:55 -07:00
David Anderson
44d9929208 wgengine: remove Config.TUNName, require caller to create device. 
Also factors out device creation and associated OS workarounds to
net/tun.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 21:08:11 -07:00
David Anderson
0a84aaca0a wgengine/router: remove unused wireguard *Device argument. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 19:43:13 -07:00
Brad Fitzpatrick
bcf571ec97 wgengine/monitor: fix OpenBSD build 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-26 09:16:43 -07:00
Brad Fitzpatrick
7f174e84e6 net/interfaces: remove mutating methods, add EqualFiltered instead 
Now callers (wgengine/monitor) don't need to mutate the state to remove
boring interfaces before calling State.Equal. Instead, the methods
to remove boring interfaces from the State are removed, as is
the reflect-using Equal method itself, and in their place is
a new EqualFiltered method that takes a func predicate to match
interfaces to compare.

And then the FilterInteresting predicate is added for use
with EqualFiltered to do the job that that wgengine/monitor
previously wanted.

Now wgengine/monitor can keep the full interface state around,
including the "boring" interfaces, which we'll need for peerapi on
macOS/iOS to bind to the interface index of the utunN device.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-26 09:11:48 -07:00
David Anderson
672731ac6f many: gofmt. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 17:41:51 -07:00
David Anderson
6521f02ff6 Move DNS flush logic to net/dns. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 17:40:52 -07:00
David Anderson
9f7f2af008 wgengine/router/dns: move to net/dns. 
Preparation for merging the APIs and whatnot.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 16:25:30 -07:00
David Anderson
8432999835 Move wgengine/tsdns to net/dns. 
Straight move+fixup, no other changes. In prep for merging with
wgengine/router/dns.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 16:25:30 -07:00
Brad Fitzpatrick
81143b6d9a ipn/ipnlocal: start of peerapi between nodes 
Also some necessary refactoring of the ipn/ipnstate too.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-25 16:00:35 -07:00
Josh Bleecher Snyder
28af46fb3b wgengine: pass logger as a separate arg to device.NewDevice 
Adapt to minor API changes in wireguard-go.
And factor out device.DeviceOptions variables.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-03-24 10:39:58 -07:00
Brad Fitzpatrick
2384c112c9 net/packet, wgengine/{filter,tstun}: add TSMP ping 
Fixes #1467

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-24 09:50:01 -07:00
Josh Bleecher Snyder
4b77eca2de wgengine/magicsock: check returned error in addTestEndpoint 
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-03-24 09:46:36 -07:00
Brad Fitzpatrick
c99f260e40 wgengine/magicsock: prefer IPv6 transport if roughly equivalent latency 
Fixes #1566

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-23 17:34:01 -07:00
Brad Fitzpatrick
e2b3d9aa5f all: s/Magic DNS/MagicDNS/ for consistency 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-23 14:25:28 -07:00
Brad Fitzpatrick
9643d8b34d wgengine/magicsock: add an addrLatency type to combine an IPPort+time.Duration 
Updates #1566 (but no behavior changes as of this change)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-23 10:09:10 -07:00
Brad Fitzpatrick
96dfeb2d7f wgengine: log tailscale pings 
Fixes #1561

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-22 21:48:05 -07:00
Brad Fitzpatrick
85138d3183 health: track whether any network interface is up 
Fixes #1562

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-22 21:42:14 -07:00
Brad Fitzpatrick
0994a9f7c4 wgengine{,/magicsock}: fix, improve "tailscale ping" to default routes and subnets 
e.g.

$ tailscale ping 1.1.1.1
exit node found but not enabled

$ tailscale ping 10.2.200.2
node "tsbfvlan2" found, but not using its 10.2.200.0/24 route

$ sudo tailscale  up --accept-routes
$ tailscale ping 10.2.200.2
pong from tsbfvlan2 (100.124.196.94) via 10.2.200.34:41641 in 1ms

$ tailscale ping mon.ts.tailscale.com
pong from monitoring (100.88.178.64) via DERP(sfo) in 83ms
pong from monitoring (100.88.178.64) via DERP(sfo) in 21ms
pong from monitoring (100.88.178.64) via [2604:a880:4:d1::37:d001]:41641 in 22ms

This necessarily moves code up from magicsock to wgengine, so we can
look at the actual wireguard config.

Fixes #1564

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-22 21:29:44 -07:00
Brad Fitzpatrick
7e0d12e7cc wgengine/magicsock: don't update control if only endpoint order changes 
Updates #1559

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-22 10:37:04 -07:00
Brad Fitzpatrick
1eb95c7e32 net/packet, wgengine{,/filter}: remove net/packet IPProto forwarding consts 
Only use the ones in types/ipproto now.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-20 21:45:47 -07:00
Brad Fitzpatrick
01b90df2fa net/packet, wgengine/filter: support SCTP 
Add proto to flowtrack.Tuple.

Add types/ipproto leaf package to break a cycle.

Server-side ACL work remains.

Updates #1516

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-20 21:34:13 -07:00
Brad Fitzpatrick
90a6fb7ffe tailcfg: add FilterRule.IPProto 
Updates #1516

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-19 18:08:23 -07:00
Brad Fitzpatrick
32562a82a9 wgengine/magicsock: annotate a few more disco logs as verbose 
Fixes #1540

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-19 13:24:29 -07:00
Brad Fitzpatrick
c19ed37b0f wgengine/magicsock: mark some legacy debug log output as verbose 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-18 08:17:59 -07:00
Brad Fitzpatrick
aa79a57f63 wgengine/netstack: use inet.af/netstack, remove 64-bit only limitation 
This reverts the revert commit 84aba349d9.

And changes us to use inet.af/netstack.

Updates #1518

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-17 22:46:09 -07:00
David Anderson
84aba349d9 Revert "wgengine/netstack: update gvisor to remove 64-bit only limitation" 
Breaks our corp repo due to gRPC dependency hell.

This reverts commit d42f8b7f9a.
 2021-03-16 15:36:06 -07:00
Brad Fitzpatrick
e0f2796b43 wgengine: don't diagnose iOS NWPathMonitor connection probe timeouts 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-16 14:13:02 -07:00
Brad Fitzpatrick
0f90586da8 wgengine/monitor: skip more route messages on darwin 
Should help iOS battery life on NEProvider.wake/skip events
with useless route updates that shouldn't cause re-STUNs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-16 12:59:26 -07:00
Brad Fitzpatrick
d42f8b7f9a wgengine/netstack: update gvisor to remove 64-bit only limitation 
gVisor fixed their google/gvisor#1446 so we can include gVisor mode
on 32-bit machines.

A few minor upstream API changes, as normal.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-15 21:02:51 -07:00
Brad Fitzpatrick
232cfda280 wgengine/router: report to control when setPrivateNetwork fails 
Fixes #1503

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-15 16:19:40 -07:00
Brad Fitzpatrick
ba8c6d0775 health, controlclient, ipn, magicsock: tell health package state of things 
Not yet checking anything. Just plumbing states into the health package.

Updates #1505

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-15 15:20:55 -07:00
Naman Sood
770aa71ffb client, cmd/hello, ipn, wgengine: fix whois for netstack-forwarded connections 
Updates #504

Updates #707

Signed-off-by: Naman Sood <mail@nsood.in>
 2021-03-15 18:14:09 -04:00
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
d580b3f09e wgengine/router: fix go vet failure on BSDs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-15 14:27:39 -07:00
Aleksandar Pesic
25d2dd868b wgengine/router: flushdns in windows when router config changes 
Fixes: https://github.com/tailscale/tailscale/issues/1430

Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
 2021-03-15 13:03:01 +01:00
Brad Fitzpatrick
c81814e4f8 derp{,/derphttp},magicsock: tell DERP server when ping acks can be expected 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-12 09:55:02 -08:00
Brad Fitzpatrick
f9f3b67f3a wgengine{,tsdns}: rebind MagicDNS forwarders on link change 
Fixes #1480

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-12 08:56:53 -08:00
David Anderson
fa6110e47b wgengine/router: don't touch interface routes 
Developed by a cast of dozens.

Fixes #1448

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-11 21:09:25 -08:00
Brad Fitzpatrick
c576fea60e wgengine/magicsock: delete unused WhoIs method that was moved elsewhere 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-11 11:44:01 -08:00