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David Anderson 55b6753c11 wgengine/magicsock: remove use of key.{Public,Private}. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-29 13:20:13 -07:00
David AndersonandDave Anderson c1d009b9e9 ipn/ipnstate: use key.NodePublic instead of the generic key.Public. 
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-29 10:00:59 -07:00
David Anderson ebae0d95d0 Revert "Revert "tailcfg: remove reference to types/key.Public."" 
Updates #3206

This reverts commit ef14663934.
 2021-10-29 09:38:44 -07:00
David Anderson ef14663934 Revert "tailcfg: remove reference to types/key.Public." 
Breaks corp unit tests.

Updates #3206

This reverts commit 94f6257fde.
 2021-10-28 19:00:29 -07:00
David Anderson 94f6257fde tailcfg: remove reference to types/key.Public. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 16:16:38 -07:00
David Anderson 1f06f77dcb derp: remove package shadowing of types/key. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 16:13:28 -07:00
David Anderson 37c150aee1 derp: use new node key type. 
Update #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 16:02:11 -07:00
David Anderson 15376f975b types/wgkey: delete, no longer used. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 14:53:38 -07:00
David Anderson c41fe182f0 cmd/tailscaled: update depaware. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 14:28:59 -07:00
David Anderson 4d38194c21 control/controlclient: stop using wgkey. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 14:22:51 -07:00
David Anderson e03fda7ae6 wgengine/magicsock: remove test uses of wgkey. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 14:17:25 -07:00
David Anderson c9bf773312 wgengine/magicsock: replace use of wgkey with new node key type. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 11:21:52 -07:00
David Anderson 6e5175373e types/netmap: use new node key type. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 10:44:34 -07:00
David Anderson 96ad68c5d6 ipn: remove mention of wgkey in comment. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 10:40:44 -07:00
David Anderson bab2d92c42 tailcfg: remove use of wgkey. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 10:39:56 -07:00
David Anderson 3164c7410e wgengine/wgcfg: remove unused helper function. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 10:38:13 -07:00
David Anderson 0c546a28ba types/persist: use new node key type. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 10:29:43 -07:00
David AndersonandDave Anderson a9c78910bd wgengine/wgcfg: convert to use new node key type. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 09:39:23 -07:00
David AndersonandDave Anderson a47158e14d cmd/derper: use new node key type. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 09:39:23 -07:00
David AndersonandDave Anderson bc89a796ec types/key: add a dedicated type for node keys. 
Complete with converters to all the other types that represent a
node key today, so the new type can gradually subsume old ones.

Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-28 09:16:39 -07:00
David AndersonandDave 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 AndersonandDave 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
David AndersonDave AndersonDenton Gentry
 		a320d70614 net/dns: fall back to copy+delete/truncate if moving to/from /etc/resolv.conf fails. 
In some containers, /etc/resolv.conf is a bind-mount from outside the container.
This prevents renaming to or from /etc/resolv.conf, because it's on a different
filesystem from linux's perspective. It also prevents removing /etc/resolv.conf,
because doing so would break the bind-mount.

If we find ourselves within this environment, fall back to using copy+delete when
renaming to /etc/resolv.conf, and copy+truncate when renaming from /etc/resolv.conf.

Fixes #3000

Co-authored-by: Denton Gentry <dgentry@tailscale.com>
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-26 09:03:37 -07:00
David AndersonandDave Anderson 04d24d3a38 net/dns: move directManager function below directManager's definition. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-26 09:03:37 -07:00
David AndersonandDave Anderson 422ea4980f net/dns: remove a tiny wrapper function that isn't contributing anything. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-26 09:03:37 -07:00
David Anderson c60806b557 scripts/installer.sh: use .asc suffix for armored debian gpg key URL. 
Fixes #2512

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-20 18:58:50 -07:00
David AndersonDave AndersonJonathan Hult
 		8e3b8dbb50 scripts/installer.sh: Correct support for Oracle Linux. 
Co-Authored-By: Jonathan Hult <jhult@mythics.com>
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-20 12:47:38 -07:00
David AndersonandDave Anderson 1b4e007425 scripts/installer.sh: use expr for regex matches. 
=~ doesn't work in posix shell, only in bash, and we don't use bash.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-19 19:33:52 -07:00
David AndersonandDave Anderson 7ce9c7ce84 scripts/installer.sh: use the appropriate apt key wrangling for the distro. 
Updates #1937

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-19 19:15:07 -07:00
David AndersonandDave Anderson 118fe105f5 scripts/installer.sh: add a few more supported distro versions. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-19 19:15:07 -07:00
David AndersonandDave Anderson b956139b0c wgengine/magicsock: track IP<>node mappings without relying on discokeys. 
Updates #3088.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 14:58:21 -07:00
David Anderson e7eb46bced wgengine/magicsock: add an explicit else branch to peerMap update. 
Clarifies that the replace+delete of peerinfo data is only when peerInfo
already exists.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 13:05:52 -07:00
David Anderson 1c56643136 disco: amplify comment that disco ping's NodeKey shouldn't be trusted by itself. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 13:05:52 -07:00
David AndersonandDave Anderson 2aa5df7ac1 wgengine/magicsock: document and enforce that peerInfo.ep is non-nil. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 10:49:24 -07:00
David AndersonandDave Anderson 521b44e653 wgengine/magicsock: move discoKey fields to the mutex-protected section. 
Fixes #3106

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 10:49:24 -07:00
David AndersonandDave Anderson 830f641c6b wgengine/magicsock: update discokeys on netmap change. 
Fixes #3008.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-06 14:52:47 -07:00
David AndersonandDave Anderson 1eabb5b2d9 ipn: don't log IPN messages that may contain an authkey. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-22 20:32:49 -07:00
David AndersonandDave Anderson 562622a32c .github: add dependabot config to update go.mod and github actions. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-22 15:35:42 -07:00
David AndersonandDave Anderson 4cf63b8df0 net/dnsfallback: update static map for new derp11. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-22 15:35:42 -07:00
David Anderson 18086c4cb7 go.mod: bump github.com/klauspost/compress to 1.13.6 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-22 15:11:25 -07:00
Dave AndersonandDave Anderson 478775de6a github: add code security scanning 2021-09-21 15:46:39 -07:00
David Anderson efe8020dfa wgengine/magicsock: fix race condition in tests. 
AFAICT this was always present, the log read mid-execution was never safe.
But it seems like the recent magicsock refactoring made the race much
more likely.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-05 17:42:33 -07:00
David AndersonandDave Anderson 69c897a763 net/dnsfallback: run go generate to pick up new derp9s. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-05 00:00:16 -07:00
David AndersonandDave Anderson bb6fdfb243 net/dns: fix the build on freebsd (missing default case in switch) 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-05 00:00:16 -07:00
David AndersonandDave Anderson b3b1c06b3a net/dns: only restart systemd-resolved if we changed /etc/resolv.conf. 
Reported on IRC: in an edge case, you can end up with a directManager DNS
manager and --accept-dns=false, in which case we should do nothing, but
actually end up restarting resolved whenever the netmap changes, even though
the user told us to not manage DNS.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-05 00:00:16 -07:00
David Anderson 10547d989d net/dns: exhaustively test DNS selection paths for linux. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-04 23:40:48 -07:00
David Anderson c071bcda33 net/dns: relax systemd-resolved detection. 
Reported on IRC: a resolv.conf that contained two entries for
"nameserver 127.0.0.53", which defeated our "is resolved actually
in charge" check. Relax that check to allow any number of nameservers,
as long as they're all 127.0.0.53.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-04 22:32:28 -07:00
Dave AndersonandGitHub 980acc38ba types/key: add a special key with custom serialization for control private keys (#2792) 
* Revert "Revert "types/key: add MachinePrivate and MachinePublic.""

This reverts commit 61c3b98a24.

Signed-off-by: David Anderson <danderson@tailscale.com>

* types/key: add ControlPrivate, with custom serialization.

ControlPrivate is just a MachinePrivate that serializes differently
in JSON, to be compatible with how the Tailscale control plane
historically serialized its private key.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-03 13:17:46 -07:00
David Anderson 61c3b98a24 Revert "types/key: add MachinePrivate and MachinePublic." 
Broke the tailscale control plane due to surprise different serialization.

This reverts commit 4fdb88efe1.
 2021-09-03 11:34:34 -07:00
David AndersonandDave Anderson 4fdb88efe1 types/key: add MachinePrivate and MachinePublic. 
Plumb throughout the codebase as a replacement for the mixed use of
tailcfg.MachineKey and wgkey.Private/Public.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-03 10:07:15 -07:00
David Anderson 4ce091cbd8 version: use go from the current toolchain to compile in tests. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-02 20:11:20 -07:00
David AndersonandDave Anderson 159d88aae7 go.mod: tidy. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-02 14:26:27 -07:00
David Anderson b96159e820 go.mod: update github.com/ulikunitz/xz for https://github.com/advisories/GHSA-25xm-hr59-7c27 
Our code is not vulnerable to the issue in question: it only happens in the decompression
path for untrusted inputs, and we only use xz as part of mkpkg, which is write-only
and operates on trusted build system outputs to construct deb and rpm packages.

Still, it's nice to keep the dependabot dashboard clean.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-02 14:02:57 -07:00
David AndersonandDave Anderson daf54d1253 control/controlclient: remove TS_DEBUG_USE_DISCO=only. 
It was useful early in development when disco clients were the
exception and tailscale logs were noisier than today, but now
non-disco is the exception.

Updates #2752

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 18:11:32 -07:00
David AndersonandDave Anderson 39748e9562 net/dns/resolver: authoritatively return NXDOMAIN for reverse zones we own. 
Fixes #2774

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 18:11:32 -07:00
David AndersonandDave Anderson 954064bdfe wgengine/wgcfg/nmcfg: don't configure peers who can't DERP or disco. 
Fixes #2770

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 18:11:32 -07:00
David AndersonandDave Anderson f90ac11bd8 wgengine: remove unnecessary magicConnStarted channel. 
Having removed magicconn.Start, there's no need to synchronize startup
of other things to it any more.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 18:11:32 -07:00
David AndersonandDave Anderson bb10443edf wgengine/wgcfg: use just the hexlified node key as the WireGuard endpoint. 
The node key is all magicsock needs to find the endpoint that WireGuard
needs.

Updates #2752

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David AndersonandDave Anderson d00341360f wgengine/magicsock: remove unused debug knob. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David AndersonandDave Anderson dfd978f0f2 wgengine/magicsock: use NodeKey, not DiscoKey, as the trigger for lazy reconfig. 
Updates #2752

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David AndersonandDave Anderson 4c27e2fa22 wgengine/magicsock: remove Start method from Conn. 
Over time, other magicsock refactors have made Start effectively a
no-op, except that some other functions choose to panic if called
before Start.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David AndersonandDave Anderson 1a899344bd wgengine/magicsock: don't store tailcfg.Nodes alongside endpoints. 
Updates #2752

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David AndersonandDave Anderson b2181608b5 wgengine/magicsock: eagerly create endpoints in SetNetworkMap. 
Updates #2752

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-09-01 15:13:21 -07:00
David Anderson 44d71d1e42 wgengine/magicsock: fix race in test shutdown, again. 
We were returning an error almost, but not quite like errConnClosed in
a single codepath, which could still trip the panic on reconfig in the
test logic.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 21:26:38 -07:00
David Anderson f09ede9243 wgengine/magicsock: don't configure eager WireGuard handshaking in tests. 
Our prod code doesn't eagerly handshake, because our disco layer enables
on-demand handshaking. Configuring both peers to eagerly handshake leads
to WireGuard handshake races that make TestTwoDevicePing flaky.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:28:12 -07:00
David AndersonandDave Anderson 86d1c4eceb wgengine/magicsock: ignore close races even harder. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson 8bacfe6a37 wgengine/magicsock: remove unused sendLogLimit limiter. 
Magicsock these days gets its logs limited by the global log limiter.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson e151b74f93 wgengine/magicsock: remove opts.SimulatedNetwork. 
It only existed to override one test-only behavior with a
different test-only behavior, in both cases working around
an annoying feature of our CI environments. Instead, handle
that weirdness entirely in the test code, with a tweaked
TestOnlyPacketListener that gets injected.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson 58c1f7d51a wgengine/magicsock: rename opts.PacketListener to TestOnlyPacketListener. 
The docstring said it was meant for use in tests, but it's specifically a
special codepath that is _only_ used in tests, so make the claim stronger.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson 8049063d35 wgengine/magicsock: rename discoEndpoint to just endpoint. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson f2d949e2db wgengine/magicsock: fold findEndpoint into its only remaining caller. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 17:09:45 -07:00
David AndersonandDave Anderson fe2f89deab wgengine/magicsock: fix rare shutdown race in test. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 14:33:07 -07:00
David AndersonandDave Anderson 97693f2e42 wgengine/magicsock: delete legacy AddrSet endpoints. 
Instead of using the legacy codepath, teach discoEndpoint to handle
peers that have a home DERP, but no disco key. We can still communicate
with them, but only over DERP.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 14:33:07 -07:00
David AndersonandDave Anderson 61c62f48d9 wgengine/bench: disable unused benchmark that relies on legacy magicsock. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 14:33:07 -07:00
David AndersonandDave Anderson 54bc3b7d97 util/deephash: remove soon to be deleted field from wgcfg. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 14:33:07 -07:00
David AndersonandDave Anderson 923c98cd8f types/wgkey: add TODO for a future API change. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-30 14:33:07 -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
David Anderson bf8556ab86 portlist: fix build tag to build only on macOS, not macOS+iOS. 2021-08-18 16:18:02 -07:00
David Anderson d2d55bd63c cmd/microproxy: delete. 
Thank goodness.

Fixes #2635

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-08-12 14:17:42 -07:00
David AndersonandDave Anderson d98829583a derp: use a dedicated queue for disco traffic. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-07-12 14:23:27 -07:00
David Anderson 67158549ab derp: actually export the new drop counter. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-07-12 13:32:04 -07:00
David AndersonandDave Anderson 36492ace9d derp: add counters to track the type of dropped packets. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-07-12 13:15:59 -07:00
David Anderson c69d30cdd7 VERSION.txt: this is v1.11.0. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-24 15:45:08 -07:00
David Anderson 084d48d22d net/dns: always proxy through quad-100 on windows 8.1. 
Windows 8.1 incorrectly handles search paths on an interface with no
associated resolver, so we have to provide a full primary DNS config
rather than use Windows 8.1's nascent-but-present NRPT functionality.

Fixes #2237.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-23 17:50:19 -07:00
David AndersonandDave Anderson 0022c3d2e2 tsweb: replace NewMux with a more flexible DebugHandler. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-16 19:00:47 -07:00
David Anderson 48c25fa36f tsweb: fold StdHandlerOpts and StdHandler200s with StdHandler. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 21:55:33 -07:00
David Anderson 72343fbbec tsweb: register expvars once at startup. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 21:27:54 -07:00
David Anderson 9337826011 net/dns: fix inverted test for NetworkManager version. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 20:53:03 -07:00
David AndersonandDave Anderson 320cc8fa21 net/dns: verify that systemd-resolved is actually in charge. 
It's possible to install a configuration that passes our current checks
for systemd-resolved, without actually pointing to systemd-resolved. In
that case, we end up programming DNS in resolved, but that config never
applies to any name resolution requests on the system.

This is quite a far-out edge case, but there's a simple additional check
we can do: if the header comment names systemd-resolved, there should be
a single nameserver in resolv.conf pointing to 127.0.0.53. If not, the
configuration should be treated as an unmanaged resolv.conf.

Fixes #2136.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 19:52:02 -07:00
David Anderson e7164425b3 net/dns: don't use NetworkManager for DNS on very old NetworkManagers. 
Fixes #1945.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 15:34:35 -07:00
David Anderson ac07ff43bf cmd/tailscaled: start after NetworkManager and systemd-resolved. 
The dependency is a "soft" ordering dependency only, meaning that
tailscaled will start after those services if those services were
going to be run anyway, but doesn't force either of them to run.
That's why it's safe to specify this dependency unconditionally,
even for systems that don't run those services.

Updates #2127.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-15 14:25:44 -07:00
Dave AndersonandGitHub 144c68b80b net/dns: avoid using NetworkManager as much as possible. (#1945) 
Addresses #1699 as best as possible.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-10 10:46:08 -04:00
David AndersonandDave Anderson 8236464252 packages/deb: add package to extract metadata from .deb files. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-07 16:22:23 -07:00
David AndersonandDave Anderson 1c6946f971 cmd/mkpkg: allow zero files in a package. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-07 16:22:23 -07:00
David AndersonandDave Anderson 7fab244614 net/dns/resolver: don't spam logs on EHOSTUNREACH. 
Fixes #1719.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-07 10:45:29 -07:00
David Anderson aa6abc98f3 build_dist.sh: fix after the change to version stamping. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-03 13:14:32 -07:00
David Anderson 5088af68cf version: remove all the redo stuff, only support embedding via go ldflags. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-06-02 14:17:46 -07:00
David Anderson 33bc06795b go.mod: update for corp resync. 2021-05-31 21:47:37 -07:00
David AndersonandDave Anderson c54cc24e87 util/dnsname: make ToFQDN take exactly 0 or 1 allocs for everything. 
name                                    old time/op    new time/op    delta
ToFQDN/www.tailscale.com.-32              9.55ns ± 2%   12.13ns ± 3%  +27.03%  (p=0.000 n=10+10)
ToFQDN/www.tailscale.com-32               86.3ns ± 1%    40.7ns ± 1%  -52.86%  (p=0.000 n=10+9)
ToFQDN/.www.tailscale.com-32              86.5ns ± 1%    40.4ns ± 1%  -53.29%  (p=0.000 n=10+9)
ToFQDN/_ssh._tcp.www.tailscale.com.-32    12.8ns ± 2%    14.7ns ± 2%  +14.24%  (p=0.000 n=9+10)
ToFQDN/_ssh._tcp.www.tailscale.com-32      104ns ± 1%      45ns ± 0%  -57.16%  (p=0.000 n=10+9)

name                                    old alloc/op   new alloc/op   delta
ToFQDN/www.tailscale.com.-32               0.00B          0.00B          ~     (all equal)
ToFQDN/www.tailscale.com-32                72.0B ± 0%     24.0B ± 0%  -66.67%  (p=0.000 n=10+10)
ToFQDN/.www.tailscale.com-32               72.0B ± 0%     24.0B ± 0%  -66.67%  (p=0.000 n=10+10)
ToFQDN/_ssh._tcp.www.tailscale.com.-32     0.00B          0.00B          ~     (all equal)
ToFQDN/_ssh._tcp.www.tailscale.com-32       112B ± 0%       32B ± 0%  -71.43%  (p=0.000 n=10+10)

name                                    old allocs/op  new allocs/op  delta
ToFQDN/www.tailscale.com.-32                0.00           0.00          ~     (all equal)
ToFQDN/www.tailscale.com-32                 2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
ToFQDN/.www.tailscale.com-32                2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
ToFQDN/_ssh._tcp.www.tailscale.com.-32      0.00           0.00          ~     (all equal)
ToFQDN/_ssh._tcp.www.tailscale.com-32       2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-05-31 21:13:50 -07:00
David AndersonandDave Anderson d7f6ef3a79 util/dnsname: add a benchmark for ToFQDN. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-05-31 21:13:50 -07:00