Commit Graph

1611 Commits (d2529affa2aada22fc88b71c246f8d95932f5b17)
 

Author SHA1 Message Date
Josh Bleecher Snyder d2529affa2 wgengine/magicsock: quiet wireguard-go logging in tests
We already do this in newUserspaceEngineAdvanced.
Apply it to newMagicStack as well.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3ad7c2133a wgengine/userspace: make wireguard-go log silencing include peer routines
Also suppress log lines like:

peer(Kksd…ySmc) - Routine: sequential sender - stopped

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick b560386c1a net/packet, wgengine, tstun: add inter-node TSMP protocol for connect errors
This adds a new IP Protocol type, TSMP on protocol number 99 for
sending inter-tailscale messages over WireGuard, currently just for
why a peer rejects TCP SYNs (ACL rejection, shields up, and in the
future: nothing listening, something listening on that port but wrong
interface, etc)

Updates #1094
Updates tailscale/corp#1185

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 01e8b7fb7e go.mod: bump wireguard-go version.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 5611f290eb ipn, ipnserver: only require sudo on Linux for mutable CLI actions
This partially reverts d6e9fb1df0, which modified the permissions
on the tailscaled Unix socket and thus required "sudo tailscale" even
for "tailscale status".

Instead, open the permissions back up (on Linux only) but have the
server look at the peer creds and only permit read-only actions unless
you're root.

In the future we'll also have a group that can do mutable actions.

On OpenBSD and FreeBSD, the permissions on the socket remain locked
down to 0600 from d6e9fb1df0.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a45665426b cmd/tailscale/cli: tweak the status name column a bit
* make peers without DNS names show their hostnames as always one column, for cut/etc users
* remove trailing dot from shared peers' DNS names
3 years ago
Naman Sood 420c7a35e2
wgengine/netstack: use tailscale IPs instead of a hardcoded one (#1131)
Signed-off-by: Naman Sood <mail@nsood.in>
3 years ago
Brad Fitzpatrick 3ac952d4e9 go.sum: update 3 years ago
Brad Fitzpatrick a4b39022e0 wgengine/tsdns: fix MagicDNS lookups of shared nodes
Fixes tailscale/corp#1184
3 years ago
Brad Fitzpatrick b00c0e5f60 go.sum: update 3 years ago
Alex Brainman 6e4231c03c wgengine/router/dns: remove unused code
Commit 68ddf1 removed code that reads
`SOFTWARE\Tailscale IPN\SearchList` registry value. But the commit
left code that writes that value.

So now this package writes and never reads the value.

Remove the code to stop pointless work.

Updates #853

Signed-off-by: Alex Brainman <alex.brainman@gmail.com>
3 years ago
Josh Bleecher Snyder 654b5f1570 all: convert from []wgcfg.Endpoint to string
This eliminates a dependency on wgcfg.Endpoint,
as part of the effort to eliminate our wireguard-go fork.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Anderson 9abcb18061 wgengine/magicsock: import more of wireguard-go, update docstrings.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 22507adf54 wgengine/magicsock: stop depending on UpdateDst in legacy codepaths.
This makes connectivity between ancient and new tailscale nodes slightly
worse in some cases, but only in cases where the ancient version would
likely have failed to get connectivity anyway.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 017dcd520f tsweb: export VarzHandler 3 years ago
Brad Fitzpatrick c1dabd9436 control/controlclient: let clients opt in to Sharer-vs-User split model
Updates tailscale/corp#1183
3 years ago
Josh Bleecher Snyder b38fa7de29 go.mod: update to latest wireguard-go 3 years ago
Josh Bleecher Snyder 020084e84d wgengine: adapt to removal of wgcfg.Key in wireguard-go 3 years ago
Smitty 2bf49ddf90 Provide example when format string is rate limited
Here's an example log line in the new format:
    [RATE LIMITED] format string "open-conn-track: timeout opening %v; no associated peer node" (example: "open-conn-track: timeout opening ([ip] => [ip]); no associated peer node")
This should make debugging logging issues a bit easier, and give more
context as to why something was rate limited. This change was proposed
in a comment on #1110.

Signed-off-by: Smitty <me@smitop.com>
3 years ago
Denton Gentry ce058c8280
Revert "Add logtail tests (#1114)" (#1116)
This reverts commit e4f53e9b6f.

At least two of these tests are flakey, reverting until they can be
made more robust.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Smitty b2a08ddacd wgengine/tsdns: return NOERROR instead of NOTIMP for most records
This is what every other DNS resolver I could find does, so tsdns
should do it to. This also helps avoid weird error messages about
non-existent records being unimplemented, and thus fixes #848.

Signed-off-by: Smitty <me@smitop.com>
3 years ago
Denton Gentry e4f53e9b6f
Add logtail tests (#1114)
* logtail: test parseAndRemoveLogLevel()

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: test JSON log encoding.

Expand TestUploadMessages to also exercise the encoding functions
in logtail, like JSON logging and timestamps.

Other tests frequently send logs but a) don't check the result and
b) do so by happenstance, such that the lines in encode() were not
consistently being exercised and leading to spurious changes in
code coverage.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: add a test for drainPendingMessages

Make the client buffer some messages before the upload server
becomes available.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: use %q, raw strings, and io.WriteString

%q escapes binary characters for us.

raw strings avoid so much backslash escaping

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick b987b2ab18 control/controlclient: treat node sharer as owner for display purposes
This make clients (macOS, Windows, tailscale status) show the node
sharer's profile rather than the node owner (which may be anonymized).

Updates #992
3 years ago
Brad Fitzpatrick 7acd3397d5 README: names of contributors, link to them instead 3 years ago
Brad Fitzpatrick 9d73f84a71 tailcfg, control/controlclient: make MapResponse.CollectServices an opt.Bool
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Christina Wen a746ff5de7 API.md: add documentation for deleting a device
Signed-off-by: Christina Wen <christina@tailscale.com>
3 years ago
Christina Wen 8d7ddf5e94 API.md: rename "domain" to "tailnet"
Signed-off-by: Christina Wen <christina@tailscale.com>
3 years ago
Denton Gentry ac42757cd7 netcheck: use reflect in sortRegions test.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 43e060b0e5 netcheck: test sortRegions
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 8349e10907 magicsock: add description of testClosingContext
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry b771a1363b logtail: start a local server for TestFastShutdown
Right now TestFastShutdown tries to upload logs to localhost:1234,
which will most likely respond with an error. However if one has an
actual service running on port 1234, it would receive a connection
attempting to POST every time the unit test runs.

Start a local server and direct the upload there instead.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 2e9728023b magicsock: test error case in sendDiscoMessage
In sendDiscoMessage there is a check of whether the connection is
closed, which is not being reliably exercised by other tests.
This shows up in code coverage reports, the lines of code in
sendDiscoMessage are alternately added and subtracted from
code coverage.

Add a test to specifically exercise and verify this code path.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 2c328da094 logtail: add a test to upload logs to local server
Start an HTTP server to accept POST requests, and upload some logs to
it. Check that uploaded logs were received.

Code in logtail:drainPending was not being reliably exercised by other
tests. This shows up in code coverage reports, as lines of code in
drainPending are alternately added and subtracted from code coverage.
This test will reliably exercise and verify this code.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 0aed59b691 portlist: add a test for SameInodes
Exercise all cases.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 07e4009e15 portlist: fully exercise lessThan in tests
All cases in lessThan are not reliably exercised by other tests.
This shows up in code coverage metrics as lines in lessThan are
alternately added and removed from coverage.

Add a test case to systematically test all conditions.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 0aa55bffce magicsock: test error case in derpWriteChanOfAddr
In derpWriteChanOfAddr when we call derphttp.NewRegionClient(),
there is a check of whether the connection is already errored and
if so it returns before grabbing the lock. The lock might already
be held and would be a deadlock.

This corner case is not being reliably exercised by other tests.
This shows up in code coverage reports, the lines of code in
derpWriteChanOfAddr are alternately added and subtracted from
code coverage.

Add a test to specifically exercise this code path, and verify that
it doesn't deadlock.

This is the best tradeoff I could come up with:
+ the moment code calls Err() to check if there is an error, we
  grab the lock to make sure it would deadlock if it tries to grab
  the lock itself.
+ if a new call to Err() is added in this code path, only the
  first one will be covered and the rest will not be tested.
+ this test doesn't verify whether code is checking for Err() in
  the right place, which ideally I guess it would.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick 85e54af0d7 wgengine: on TCP connect fail/timeout, log some clues about why it failed
So users can see why things aren't working.

A start. More diagnostics coming.

Updates #1094
3 years ago
Brad Fitzpatrick 5eeaea9ef9 net/packet: add TCPFlag type and some more constants
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ad3fb6125d net/flowtrack: add Tuple.String method
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d6e9fb1df0 all: adjust Unix permissions for those without umasks
Fixes tailscale/corp#1165

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 6b08303b0f Dockerfile: add big warning banner
Updates #504
3 years ago
Brad Fitzpatrick 676b5b7946 net/netcheck: improve the preferred DERP hysteresis
Users in Amsterdam (as one example) were flipping back and forth
between equidistant London & Frankfurt relays too much.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Sonia Appasamy 024671406b
ipn: only send services in Hostinfo if Tailnet has opted-in to services collection (#1107)
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
3 years ago
Brad Fitzpatrick f85769b1ed wgengine/magicsock: drop netaddr.IPPort cache
netaddr.IP no longer allocates, so don't need a cache or all its associated
code/complexity.

This totally removes groupcache/lru from the deps.

Also go mod tidy.
3 years ago
Brad Fitzpatrick a80446c026 Update depaware (removes lru from wgengine/filter) 3 years ago
Brad Fitzpatrick 4d15e954bd net/flowtrack: add new package to specialize groupcache/lru key type
Reduces allocs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Naman Sood f69e46175d
wengine/netstack: bump gvisor to latest version
* wengine/netstack: bump gvisor to latest version

Signed-off-by: Naman Sood <naman@tailscale.com>

* update dependencies

Signed-off-by: Naman Sood <naman@tailscale.com>

* Don't change hardcoded IP

Signed-off-by: Naman Sood <naman@tailscale.com>
3 years ago
Brad Fitzpatrick 8b0112649a wgengine/netstack: don't build netstack on 32-bit platforms
See google/gvisor#5241
3 years ago
Brad Fitzpatrick 5aa5db89d6 cmd/tailscaled, wgengine/netstack: add start of gvisor userspace netstack work
Not usefully functional yet (mostly a proof of concept), but getting
it submitted for some work @namansood is going to do atop this.

Updates #707
Updates #634
Updates #48
Updates #835
3 years ago
Brad Fitzpatrick 5efb0a8bca cmd/tailscale: change formatting of "tailscale status"
* show DNS name over hostname, removing domain's common MagicDNS suffix.
  only show hostname if there's no DNS name.
  but still show shared devices' MagicDNS FQDN.

* remove nerdy low-level details by default: endpoints, DERP relay,
  public key.  They're available in JSON mode still for those who need
  them.

* only show endpoint or DERP relay when it's active with the goal of
  making debugging easier. (so it's easier for users to understand
  what's happening) The asterisks are gone.

* remove Tx/Rx numbers by default for idle peers; only show them when
  there's traffic.

* include peers' owner login names

* add CLI option to not show peers (matching --self=true, --peers= also
  defaults to true)

* sort by DNS/host name, not public key

* reorder columns
3 years ago