Commit Graph

458 Commits (19e5f242e0aedb3eb95e336dd1754a7a5b4c5413)

Author SHA1 Message Date
Christine Dodrill 7ea809897d ipn/ipnserver: enable systemd-notify support
Addresses #964

Still to be done:
- Figure out the correct logging lines in util/systemd
- Figure out if we need to slip the systemd.Status function anywhere
  else
- Log util/systemd errors? (most of the errors are of the "you cannot do
  anything about this, but it might be a bad idea to crash the program if
  it errors" kind)

Assistance in getting this over the finish line would help a lot.

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: rename the nonlinux file to appease the magic

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: fix package name

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: fix review feedback from @mdlayher

Signed-off-by: Christine Dodrill <me@christine.website>

cmd/tailscale{,d}: update depaware manifests

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: use sync.Once instead of func init

Signed-off-by: Christine Dodrill <me@christine.website>

control/controlclient: minor review feedback fixes

Signed-off-by: Christine Dodrill <me@christine.website>

{control,ipn,systemd}: fix review feedback

Signed-off-by: Christine Dodrill <me@christine.website>

review feedback fixes

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: fix sprintf call

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: make staticcheck less sad

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: print IP address in connected status

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: review feedback

Signed-off-by: Christine Dodrill <me@christine.website>

final fixups

Signed-off-by: Christine Dodrill <me@christine.website>
4 years ago
Brad Fitzpatrick a0a8b9d76a control/controlclient: don't spin when starting up when node key is expired
Fixes #1018

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b3c7b631c2 tailcfg, control/controlclient: make nil PacketFilter mean unchanged (mapver 6)
After mapver 5's incremental netmap updates & user profiles, much of
the remaining bandwidth for streamed MapResponses were redundant,
unchanged PacketFilters. So make MapRequest.Version 6 mean that nil
means unchanged from the previous value.
4 years ago
Brad Fitzpatrick fac2b30eff control/controlclient: diagnose zero bytes from control
Updates #921

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick a2d78b4d3e net/dnscache, control/controlclient: use DNS cache when dialing control
Cache DNS results of earlier login.tailscale.com control dials, and use
them for future dials if DNS is slow or broken.

Fixes various issues with trickier setups with the domain's DNS server
behind a subnet router.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 76d99cf01a wgengine/filter: remove the Matches type.
It only served to obscure the underlying slice type without
adding much value.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 782e07c0ae control/controlclient: send warning flag in map request when IP forwarding off
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 4f4e84236a ipn: clean up Prefs logging at start
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 54e6c3a290 version: use OSS repo's version when building.
When building with redo, also include the git commit hash
from the proprietary repo, so that we have a precise commit
that identifies all build info (including Go toolchain version).

Add a top-level build script demonstrating to downstream distros
how to burn the right information into builds.

Adjust `tailscale version` to print commit hashes when available.

Fixes #841.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a3f17b8108 control/controlclient: also log active account in netmaps
Updates tailscale/corp#461
4 years ago
Brad Fitzpatrick 5b1d03f016 control/controlclient: remove prior temporary macos debugging
It was an x/net/http2 bug, since fixed.
4 years ago
Brad Fitzpatrick c44e244276 control/controlclient: add some temporary debugging for #839 4 years ago
Brad Fitzpatrick 9957c45995 tailcfg: bump, document MapRequest.Version value
Fixes tailscale/corp#634

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 3909c82f3d control/controlclient: rename map debug knob, make it do both request+response
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 62d941dc26 tailcfg: add a DebugFlags field for experiments and debugging.
Also replaces the IPv6Overlay bool with use of DebugFlags, since
it's currently an experimental configuration.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 22024a38c3 control/controlclient: log Hostinfo on change
Fixes #830

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson c6dbd24f67 tailcfg: add a field to advertise support for IPv6 tailscale config.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a6c34bdc28 control/controlclient: also include our own profile (for when no self-owned peers)
Fix from regression in previous commit
(0e3048d8e0) that was caught by e2e
tests.

In that previous commit, the user's own profile was omitted from the
NetworkMap in the case where the user only had one node.
4 years ago
Brad Fitzpatrick 0e3048d8e0 control/controlclient: support delta userprofiles from control
I was going to make support for this advertised from the client, but
turns out only "tailscale status" even uses the UserProfiles field and
fails gracefully (omits that field) if a user profile for a user is
missing, so I think we can just reuse the DeltaPeers field from the
client to ask the control server to also delta encode the user
profiles.

For the few users running 1.1.x (unstable) versions between DeltaPeers
support (1.1.82) and this (~1.1.541), they'll just sometimes have
missing names in "tailscale status --json" or "tailscale status --web"
(the only places the UserProfile is used).
4 years ago
Brad Fitzpatrick 82f2fdc194 control/controlclient: adjust some logging point names
The previous code read too explicitly like log.Printf("I am here1"),
log.Printf("I am here2"). It still is with this change, but prettier, and
less subject to code rearranging order.
4 years ago
Brad Fitzpatrick 1819f6f8c8 control/controlclient: set MapRequest.ReadOnly on initial empty endpoint request
On startup, clients do a MapRequest with empty endpoints while they
learn the DERP map to discover the STUN servers they then query to
learn their endpoints.

Set MapRequest.ReadOnly on those initial queries to not broadcast the
empty endpoints out to peers. The read results will come a half second
later (or less).

Updates tailscale/corp#557
4 years ago
Avery Pennarun 6332bc5e08 controlclient: print http errors if result code != 200.
Turns out for the particular error I was chasing, it actually returns
200 and zero data. But this code mirrors the same check in the map
poll, and is the right thing to do in the name of future debugging.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
David Crawshaw 15297a3a09 control/controlclient: some extra debug info in errors
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick b5a3850d29 control/controlclient, ipn: store machine key separately from user prefs/persist
Updates #610 (fixes after some win/xcode changes in a separate repo)
4 years ago
Josh Bleecher Snyder efb08e4fee all: use IsZero methods
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick c8f257df00 Revert "all: keep UserProfiles a slice instead of a map for longer"
This reverts commit e5894aba42.

Breaks macOS/iOS build. Reverting per chat with Josh; he'll fix later today.
4 years ago
Josh Bleecher Snyder 1fecf87363 control/controlclient: use wgcfg.PrivateKey.IsZero
Generated by eg using template:

---

package p

import "github.com/tailscale/wireguard-go/wgcfg"

func before(k wgcfg.PrivateKey) bool { return k == wgcfg.PrivateKey{} }
func after(k wgcfg.PrivateKey) bool  { return k.IsZero() }


Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder e5894aba42 all: keep UserProfiles a slice instead of a map for longer
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 4d4ca2e496 control/controlclient: remove Roles fields from client
They are unused.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 5d8b88be88 control/controlclient, version/distro, wgengine: recognize OpenWrt
And help out with missing packages.

Thanks to @willangley for tips.

Updates #724
4 years ago
Brad Fitzpatrick 904a91038a tailcfg: add MapRequest.ReadOnly and OmitPeers; remove DebugForceDisco
DebugForceDisco was a development & safety knob during the the transition
to discovery. It's no longer needed.

Add MapRequest.ReadOnly to prevent clients needing to do two
peer-spamming MapRequest at start-up.

This only adds the field, not the use of the field. (The control server
needs to support it first.)

Updates tailscale/corp#557

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 761fe19e5f control/controlclient: don't accept /32 routes without --accept-routes
Fixes tailscale/corp#500

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 88107b1287 control/controlclient: add TS_DEBUG_MAPRESPONSE to dump all MapResponses
I'm always adding this by hand during development. Time to check it in.
4 years ago
Brad Fitzpatrick 931bcd44cb control/controlclient: report Synology "distro" + its version to control 4 years ago
David Anderson 8f5b52e571 net/netns: add windows support.
Also remove rebinding logic from the windows router. Magicsock will
instead rebind based on link change signals.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 662c19551a control/controlclient: deal with localized 'Version' string getting Windows version 4 years ago
Brad Fitzpatrick 28f9cd06f5 tshttpproxy, controlclient, derphttp, logpolicy: send Negotiate auth to proxies
For Windows only, and only when built with Tailscale's Go tree.

Updates tailscale/corp#583
4 years ago
Brad Fitzpatrick 9337a99dff tailcfg, wgengine, controlclient: add control-side gating of lazy WG config 4 years ago
chungdaniel 4d56d19b46
control/controlclient, wgengine/filter: extract parsePacketFilter to … (#696)
control/controlclient, wgengine/filter: extract parsePacketFilter to new constructor in wgengine/filter

Signed-off-by: chungdaniel <daniel@tailscale.com>
4 years ago
Brad Fitzpatrick c5eb57f4d6 net/tshttpproxy: new package, support WPAD/PAC proxies on Windows
Updates tailscale/corp#553

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f6dc47efe4 tailcfg, controlclient, magicsock: add control feature flag to enable DRPO
Updates #150
4 years ago
Brad Fitzpatrick 337c86b89d control/controlclient: don't crash on invalid filter CIDR from server
Fixes #691
4 years ago
Brad Fitzpatrick a275b9d7aa control/controlclient: use less battery when stopped, stop map requests
Updates #604

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick dd97111d06 backoff: update to Go style, document a bit, make 30s explicit
Also, bit of behavior change: on non-nil err but expired context,
don't reset the consecutive failure count. I don't think the old
behavior was intentional.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 696020227c tailcfg, control/controlclient: support delta-encoded netmaps
Should greatly reduce bandwidth for large networks (including our
hello.ipn.dev node).

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 5590daa97d control/controlclient: reset timeout timer on non-keepalive map updates
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 41c4560592 control/controlclient: remove unused NetworkMap.UAPI method
And remove last remaining use of wgcfg.ToUAPI in a test's debug
output; replace it with JSON.
4 years ago
Brad Fitzpatrick 6298018704 control/controlclient: print disco keys NetworkMap diffs (debug change only)
NetworkMap text diffs being empty were currently used to short-circuit
calling magicsock's SetNetworkMap (via Engine.SetNetworkMap), but that
went away in c7582dc2 (0.100.0-230)

Prior to c7582dc2 (notably, in 0.100.0-225 and below, down to
0.100.0), a change in only disco key (as when a node restarts) but
without endpoint changes (as would happen for a client not behind a
NAT with random ports) could result in a "netmap diff: (none)" being
printed, as well as Engine.SetNetworkMap being skipped, leading to
broken discovery endpoints.

c7582dc2 fixed the Engine.SetNetworkMap skippage.

This change fixes the "netmap diff: (none)" print so we'll actually see when a peer
restarts with identical endpoints but a new discovery key.
4 years ago
Dmytro Shynkevych 28e52a0492
all: dns refactor, add Proxied and PerDomain flags from control (#615)
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
4 years ago
Dmytro Shynkevych c7582dc234
ipn: fix netmap change tracking and dns map generation (#609)
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
4 years ago
Brad Fitzpatrick 91d95dafd2 control/controlclient: remove an 'unexpected' log that no longer is
Fixes #611
4 years ago
Brad Fitzpatrick b77d752623 control/controlclient: populate OSVersion on Windows 4 years ago
Brad Fitzpatrick cd21ba0a71 tailcfg, control/controlclient: add GoArch, populate OSVersion on Linux 4 years ago
Brad Fitzpatrick be3ca5cbfd control/controlclient: remove unused, slow, often-not-what-you-want NetworkMap.Equal 4 years ago
Brad Fitzpatrick 05a79d79ae control/controlclient: rewrite, test NetworkMap.ConciseDiffFrom
It stood out a lot in hello.ipn.dev's profiles for generating a lot of
garbage (and thus GC CPU).
4 years ago
Brad Fitzpatrick 3b0514ef6d control/controlclient: rename uflags, give it a type, remove dead code 4 years ago
Brad Fitzpatrick 32ecdea157 control/controlclient: generate wireguard config w/o WgQuick text indirection 4 years ago
Dmytro Shynkevych d361511512
control/controlclient: eliminate race in loginGoal access.
This code is currently racy due to an incorrect assumption
that goal is never modified in-place, so does not require extra locking.
This change makes the assumption correct.

Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
4 years ago
Brad Fitzpatrick 96994ec431 control/controlclient: fix a couple more data races 4 years ago
Brad Fitzpatrick a8b95571fb ipn, control/controlclient: fix some data races
More remain.

Fixes tailscale/corp#432
4 years ago
Brad Fitzpatrick c9089c82e8 control/controlclient, tailcfg: turn active route discovery on by default
Updates #483
4 years ago
Brad Fitzpatrick 57e8931160 control/controlclient: fix copy/paste-o in debug knob accessor
Introduced in a975e86bb8.

Only affected TS_DEBUG_* env users.
4 years ago
Brad Fitzpatrick 6233fd7ac3 control/controlclient: don't truncate AuthURL in log
It's useful to copy/paste directly from there, without using tailscale up.
If it's truncated for some specific reason, it doesn't say why.
4 years ago
Brad Fitzpatrick a975e86bb8 wgengine/magicsock: add new endpoint type used for discovery-supporting peers
This adds a new magicsock endpoint type only used when both sides
support discovery (that is, are advertising a discovery
key). Otherwise the old code is used.

So far the new code only communicates over DERP as proof that the new
code paths are wired up. None of the actually discovery messaging is
implemented yet.

Support for discovery (generating and advertising a key) are still
behind an environment variable for now.

Updates #483
4 years ago
Brad Fitzpatrick 72bfea2ece control/controlclient: remove IPv6 opt-out environment variable
It was temporary and 3 months has elapsed without problems.
4 years ago
Brad Fitzpatrick b8edb7a5e9 control/controlclient: add Debug field to NetworkMap
As part of disabling background STUN packets when idle, we want an
emergency override switch to turn it back on, in case it interacts
poorly in the wild. We'll send that via control, but we'll want to
plumb it down to magicsock via NetworkMap.

Updates tailscale/corp#320

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 36e9cb948f control/controlclient: cut down some NetworkMap stringification & diff allocations
And start of tests.
4 years ago
Brad Fitzpatrick 894e3bfc96 control/controlclient: trim /32 suffix a bit more succinctly 4 years ago
Brad Fitzpatrick 53fb25fc2f all: generate discovery key, plumb it around
Not actually used yet.

Updates #483
4 years ago
David Anderson 0ecaf7b5ed control/controlclient: make netmap generation use rate-limited logger. 4 years ago
David Anderson 401e2ec307 control/controlclient: delete unused function. 4 years ago
Dmytro Shynkevych c12d87c54b
Fix concurrency issues in controlclient, ipn, types/logger (#456)
Signed-Off-By: Dmytro Shynkevych <dmytro@tailscale.com>
4 years ago
Brad Fitzpatrick 8edcab04d5 log/logheap: change to POST to a URL instead of logging
It's too big to log.
5 years ago
Brad Fitzpatrick 24009241bf net/netns: move SOCKS dialing to netns for now
This lets control & logs also use SOCKS dials.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Anderson 03682cb271 control/controlclient: use netns package to dial connections.
Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
Brad Fitzpatrick f0204098d8 Revert "control/controlclient: use "getprop net.hostname" for Android hostname"
This reverts commit afb9c6a6ab.

Doesn't work. See:

    https://github.com/tailscale/tailscale/issues/409#issuecomment-635241550

Looks pretty dire:

    https://medium.com/capital-one-tech/how-to-get-an-android-device-nickname-d5eab12f4ced

Updates #409
5 years ago
Brad Fitzpatrick afb9c6a6ab control/controlclient: use "getprop net.hostname" for Android hostname
Updates #409
5 years ago
David Anderson 557b310e67 control/controlclient: move auto_test back to corp repo.
It can't run without corp stuff anyway, and makes it harder to
refactor the control server.
5 years ago
David Anderson 7317e73bf4 control/controlclient: move direct_test back to corp repo.
It can only be built with corp deps anyway, and having it split
from the control code makes our lives harder.

Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
Brad Fitzpatrick 703d789005 tailcfg: add MapResponse.Debug mechanism to trigger logging heap pprof
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick e6b84f2159 all: make client use server-provided DERP map, add DERP region support
Instead of hard-coding the DERP map (except for cmd/tailscale netcheck
for now), get it from the control server at runtime.

And make the DERP map support multiple nodes per region with clients
picking the first one that's available. (The server will balance the
order presented to clients for load balancing)

This deletes the stunner package, merging it into the netcheck package
instead, to minimize all the config hooks that would've been
required.

Also fix some test flakes & races.

Fixes #387 (Don't hard-code the DERP map)
Updates #388 (Add DERP region support)
Fixes #399 (wgengine: flaky tests)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Avery Pennarun c5fcc38bf1 controlclient tests: fix more memory leaks and add resource checking.
I can now run these tests with -count=1000 without running out of RAM.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun d03de31404 controlclient/direct: fix a race condition accessing auth keys.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun 1013cda799 controlclient/auto_test: don't print the s.control object.
This contains atomic ints that trigger a race check error if we access
them non-atomically.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun d0754760e7 controlclient/auto_test: fix flake "peer OS is not linux" on macOS.
We were mis-counting the number of Synchronized messages that we should
have been generating.
5 years ago
Avery Pennarun 8f8607b6bf control/controlclient/auto_test: clean up logging to defeat 'go test' idiocy.
By default, nothing differentiates errors or fatals from regular logs, so they just
blend into the rest of the logs.

As a bonus, if you run a test using t.Run(), the log messages printed
via the sub-t.Run() are printed at a different time from log messages
printed via the parent t.Run(), making debugging almost impossible.

This doesn't actually fix the test flake I'm looking for, but at least
I can find it in the logs now.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun 286f96e412 control/controlclient: fix a very rare httptest.Server log.Printf.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun 08acb502e5 Add tstest.PanicOnLog(), and fix various problems detected by this.
If a test calls log.Printf, 'go test' horrifyingly rearranges the
output to no longer be in chronological order, which makes debugging
virtually impossible. Let's stop that from happening by making
log.Printf panic if called from any module, no matter how deep, during
tests.

This required us to change the default error handler in at least one
http.Server, as well as plumbing a bunch of logf functions around,
especially in magicsock and wgengine, but also in logtail and backoff.

To add insult to injury, 'go test' also rearranges the output when a
parent test has multiple sub-tests (all the sub-test's t.Logf is always
printed after all the parent tests t.Logf), so we need to screw around
with a special Logf that can point at the "current" t (current_t.Logf)
in some places. Probably our entire way of using subtests is wrong,
since 'go test' would probably like to run them all in parallel if you
called t.Parallel(), but it definitely can't because the're all
manipulating the shared state created by the parent test. They should
probably all be separate toplevel tests instead, with common
setup/teardown logic. But that's a job for another time.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun a7edf11a40 {ipn,control/controlclient}/tests: pass a logf function to control.New().
This matches the new API requirements.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Dmytro Shynkevych 46f4b18fe8 control/controlclient: revert extreneous synchronization.
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
5 years ago
Dmytro Shynkevych 3b94eabee3 control/controlclient: synchronize hostinfo test.
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
5 years ago
Avery Pennarun 108237798d controlclient and ipn tests: supply --advertise-tags and --advertise-routes.
This helps validate the server's behaviour when these are present.
5 years ago
Brad Fitzpatrick fefd7e10dc types/structs: add structs.Incomparable annotation, use it where applicable
Shotizam before and output queries:

sqlite> select sum(size) from bin where func like 'type..%';
129067
=>
120216
5 years ago
David Crawshaw 5650f1ecf9 controlclient, ipn: adjust tests for tailscale.com keepalive change 5 years ago
Avery Pennarun 5e5e5db75f Appease the "missing copyright header" check.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun 65fbb9c303 wgengine/filter: support subnet mask rules, not just /32 IPs.
This depends on improved support from the control server, to send the
new subnet width (Bits) fields. If these are missing, we fall back to
assuming their value is /32.

Conversely, if the server sends Bits fields to an older client, it will
interpret them as /32 addresses. Since the only rules we allow are
"accept" rules, this will be narrower or equal to the intended rule, so
older clients will simply reject hosts on the wider subnet (fail
closed).

With this change, the internal filter.Matches format has diverged
from the wire format used by controlclient, so move the wire format
into tailcfg and convert it to filter.Matches in controlclient.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
David Anderson 0038223632 tstest: rename from testy.
Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
David Crawshaw d2b7cb1e45 ipn, controlclient: add control.New parameter
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Anderson 66c7875974 control/controlclient: wait for c1 to receive a netmap.
This strictly sequences things such that c1 is fully registered in
the control server before c2 creates its poll. Failure to do this
can cause an inversion where c2's poll finishes establishing
before c1's poll starts, which results in c2 getting disconnected
rather than c1, and the test times out waiting for c1 to get kicked.

Fixes #98.

Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
David Anderson cbb1e2e853 control/controlclient: document test TestClientsReusingKeys.
The test is straightforward, but it's a little perplexing if you're
not overly familiar with controlclient.

Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
Brad Fitzpatrick a464439658 control/controlclient: fix build break caused by overzealous gitting 5 years ago
Brad Fitzpatrick 172d72a060 Revert "net/tlsdial: add memory-optimized TLS cert verification path for iOS"
This reverts commit 6fcbd4c4d4.

Decided to put it in tailscale/go's crypto/x509 instead.
5 years ago
Brad Fitzpatrick 95a658e1e3 control/controlclient: also rename HTTPC in the tests 5 years ago
Brad Fitzpatrick eb6de2bd88 control/controlclient: restore Options.HTTPC as Options.HTTPTestClient
I removed the HTTPC field in b6fa5a69be but it was apparently still
used in [oss-skipped] tests.

Restore it, but name it so it's more obvious that it's only for
tests. (It currently is, and I'd like to keep it like that for now.)
5 years ago
Brad Fitzpatrick 6fcbd4c4d4 net/tlsdial: add memory-optimized TLS cert verification path for iOS
Behind a build tag for now.
5 years ago
Brad Fitzpatrick b6fa5a69be net/tlsdial: add package for TLS dials, and make DERP & controlclient use it
This will do the iOS-optimized cert checking in a following change.
5 years ago
Brad Fitzpatrick 0a50ecbad3 control/controlclient: add missing vlog, for consistency with other sites 5 years ago
Brad Fitzpatrick b8594dc937 control/controlclient: fix deadlock in timeout+keepalive race
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 347a926ac4 control/controlclient: add opt-in netmap verbose debugging env var 5 years ago
Brad Fitzpatrick 45f2b53aca all: remove unnecessary trailing newlines in format patterns for consistency
And document on logger.Logf that it's unnecessary.
5 years ago
David Crawshaw 6b2e29867e controlclient: add auth key test
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Crawshaw 3f087466f5 controlclient: add auth key
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Crawshaw 2f8719741e controlclient: do not send duplicate hostinfo/netinfo
This should never happen, so log when it does so we can fix it.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
Brad Fitzpatrick 4524dcf51e version: move runtime.OS to tailscale OS mapping func to version
So other code can use this without duplicating the policy.
5 years ago
David Crawshaw 0590ad68be controlclient, ipn: adjust tests for authURL semantic changes
The tests cheat at filling out web forms by directly POSTing to
the target. The target for authURLs has changed slightly, the base
authURL now redirects the user to the login page.

Additionally, the authURL cycle now checks the cookie is set
correctly, so we add cookie jars where necessary to pass the
cookie through.
5 years ago
Brad Fitzpatrick 8b3f6be008 control/controlclient: flip IPv6 to be on by default
The DEBUG_INCLUDE_IPV6 environment variable is now an opt-out.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Avery Pennarun a56e853b72 cmd/relaynode: delete it!
tailscale+tailscaled now completely obsoletes relaynode, so let's let
it finally go away.
5 years ago
David Anderson 73fccd8b06 control/controlclient: remove old compat PacketFilter initialization.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 64aff0db7b control/controlclient: add TODO to delete the UAPI method 5 years ago
Brad Fitzpatrick af277a6762 controlclient, magicsock: add debug knob to request IPv6 endpoints
Add opt-in method to request IPv6 endpoints from the control plane.
For now they should just be skipped. A previous version of this CL was
unconditional and reportedly had problems that I can't reproduce. So
make it a knob until the mystery is solved.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Crawshaw 13eed1e88b controlclient: remove common log on very quiet nodes
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Anderson 0be475ba46 Revert "tailcfg, controlclient, magicsock: request IPv6 endpoints, but ignore them"
Breaks something deep in wireguard or magicsock's brainstem, no packets at all
can flow. All received packets fail decryption with "invalid mac1".

This reverts commit 94024355ed.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 94024355ed tailcfg, controlclient, magicsock: request IPv6 endpoints, but ignore them
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 073bb8de80 control/controlclient: don't use Node as value type 5 years ago
David Crawshaw 73cae4eb11 tailcfg, controlclient: standardize on wgcfg ShortString key printing
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Crawshaw 5a0822eefd controlclient, ipn: fix tests for new control param 5 years ago
Brad Fitzpatrick e085aec8ef all: update to wireguard-go API changes
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Crawshaw 1b2be3f1c8 controlclient: test peer keepalive directive
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Crawshaw 8712164a0a controlclient: use per-peer KeepAlive signal
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
Brad Fitzpatrick 19cc4f8b8e control/controlclient: remove a number literal in string slice offset 5 years ago
Avery Pennarun 8b8e3f08a0 Fix staticcheck complaint. 5 years ago
Avery Pennarun b4897e7de8 controlclient/netmap: write our own b.ConciseDiffFrom(a) function.
This removes the need for go-cmp, which is extremely bloaty so we had
to leave it out of iOS. As a result, we had also left it out of macOS,
and so we didn't print netmap diffs at all on darwin-based platforms.
Oops.

As a bonus, the output format of the new function is way better.

Minor oddity: because I used the dumbest possible diff algorithm, the
sort order is a bit dumb. We print all "removed" lines and then print
all "added" lines, rather than doing the usual diff-like thing of
interspersing them. This probably doesn't matter (maybe it's an
improvement).
5 years ago
Avery Pennarun 96bb05ce2f controlclient: reformat netmap.Concise() and add DERP server info.
The .Concise() view had grown hard to read over time. Originally, we
assumed a peer almost always had just one endpoint and one-or-more
allowedips. With magicsock, we now almost always have multiple
endpoints per peer. And empirically, almost every peer has only one
allowedip.

Change their order so we can line up allowedips vertically. Also do
some tweaking to make multiple endpoints easier to read.

While we're here, add a column to show the home DERP server of each
peer, if any.
5 years ago
Avery Pennarun f2e2ffa423 controlclient: log the entire netmap up to every 5 minutes.
We log it once upon receiving the first copy of the map, then
subsequently when a new one appears, but only if we haven't logged one
less than 5 minutes ago.

This avoids overly cluttering the log (as we did before, logging the
netmap every time one appeared, which could be hundreds of lines every
few seconds), but still gives the log enough context to help in
diagnosing problems retroactively.
5 years ago
David Crawshaw d99498bee2 controlclient: set default TimeNow function
Panic on call to nil func found by expanded ipn/e2e_test.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
Brad Fitzpatrick b27d4c017a magicsock, wgengine, ipn, controlclient: plumb regular netchecks to map poll
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Crawshaw 61529ac459 controlclient, tailcfg: deliver DERP addresses in a separate field
We still include them directly in the controlclient network map
just where we have been. Client plumbing we can do later.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
Brad Fitzpatrick 7172f3dbf4 version: add IsMobile func
And use it control/controlclient.
5 years ago
David Crawshaw d417be6a4b controlclinet: clone filter.MatchAllowAll
This avoids a non-obvious data race, where the JSON decoder ends
up creating do-nothing writes into global variables.

	==================
	WARNING: DATA RACE
	Write at 0x0000011e1860 by goroutine 201:
	  tailscale.com/wgengine/packet.(*IP).UnmarshalJSON()
	      /home/crawshaw/repo/corp/oss/wgengine/packet/packet.go:83 +0x2d9
	  encoding/json.(*decodeState).literalStore()
	      /home/crawshaw/go/go/src/encoding/json/decode.go:877 +0x445e
	...
	  encoding/json.Unmarshal()
	      /home/crawshaw/go/go/src/encoding/json/decode.go:107 +0x1de
	  tailscale.com/control/controlclient.(*Direct).decodeMsg()
	      /home/crawshaw/repo/corp/oss/control/controlclient/direct.go:615 +0x1ab
	  tailscale.com/control/controlclient.(*Direct).PollNetMap()
	      /home/crawshaw/repo/corp/oss/control/controlclient/direct.go:525 +0x1053
	  tailscale.com/control/controlclient.(*Client).mapRoutine()
	      /home/crawshaw/repo/corp/oss/control/controlclient/auto.go:428 +0x3a6
	Previous read at 0x0000011e1860 by goroutine 86:
	  tailscale.com/wgengine/filter.matchIPWithoutPorts()
	      /home/crawshaw/repo/corp/oss/wgengine/filter/match.go:108 +0x91
	  tailscale.com/wgengine/filter.(*Filter).runIn()
	      /home/crawshaw/repo/corp/oss/wgengine/filter/filter.go:147 +0x3c6
	  tailscale.com/wgengine/filter.(*Filter).RunIn()
	      /home/crawshaw/repo/corp/oss/wgengine/filter/filter.go:127 +0xb0
	  tailscale.com/wgengine.(*userspaceEngine).SetFilter.func1()
	      /home/crawshaw/repo/corp/oss/wgengine/userspace.go:390 +0xfc
	  github.com/tailscale/wireguard-go/device.(*Device).RoutineDecryption()
	      /home/crawshaw/repo/corp/wireguard-go/device/receive.go:295 +0xa1f

For #112

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Crawshaw 4e3ff4b63b controlclient: allow prefixed endpoints in tests 5 years ago
Brad Fitzpatrick 25797c8c2a all: rename deep "Copy" methods to conventional Go name "Clone" 5 years ago
David Crawshaw 6879581891 controlclient: adjust user expiry test
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
Brad Fitzpatrick 758744a4e3 Fix some Hostinfo value usages from the previous commit. 5 years ago
Brad Fitzpatrick d8de11a01b control: make Hostinfo accessed by pointer
Fix potential races in copying aliased slices by value.

Also few little doc updates.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick cc7b9b0dff control/controlclient: fix priority of DERP server, add comment 5 years ago
Brad Fitzpatrick c02f4b5a1f control/controlclient: add temporary mechanism to force derp on
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Anderson 59ba2e6316 ipn: implement Prefs.Equals efficiently.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 2896be60db Move "logger" package to under types, now that we have it.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 747c7d7ce2 types/empty: add Message, stop using mysterious *struct{}
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 587c3fcac4 control/controlclient, wgengine/magicsock: misc cleanups
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Crawshaw 2b947b3b40 controlclient: handle nil Logf option 5 years ago
Shawn Smith 1ca83fd205 fix typos
Signed-off-by: Shawn Smith <shawnpsmith@gmail.com>
5 years ago
David Crawshaw 33dfb8999e controlclient, ipn: update tests for key pointer change
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
5 years ago
David Anderson 542f46ed4d controlclient: remove unused function.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson 2227ede8af controlclient: fix staticcheck lint.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson fe9af19da9 controlclient: remove unnecessary comparison to bool.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Crawshaw 87334fb332 wgengine, controlclient: fewer pointers in wgcfg key types
Signed-off-by: David Crawshaw <david@zentus.com>
5 years ago
Earl Lee a8d8b8719a Move Linux client & common packages into a public repo. 5 years ago