Rather than make each ipn.StateStore implementation guard against
useless writes (a write of the same value that's already in the
store), do writes via a new wrapper that has a fast path for the
unchanged case.
This then fixes profileManager's flood of useless writes to AWS SSM,
etc.
Updates #8785
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Like net/http.Server.BaseContext, this lets callers specify a base
context for dials.
Updates tailscale/corp#12702
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The util/linuxfw/iptables.go had a bunch of code that wasn't yet used
(in prep for future work) but because of its imports, ended up
initializing code deep within gvisor that panicked on init on arm64
systems not using 4KB pages.
This deletes the unused code to delete the imports and remove the
panic. We can then cherry-pick this back to the branch and restore it
later in a different way.
A new test makes sure we don't regress in the future by depending on
the panicking package in question.
Fixes#8658
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We were storing a lot of "ExitNodeFilteredSet":null in the database.
Updates tailscale/corp#1818 (found in the process)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The server hasn't sent it in ages.
Updates #cleanup
Change-Id: I9695ab0f074ec6fb006e11faf3cdfc5ca049fbf8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
ScrubbedGoroutineDump previously only returned the stacks of all
goroutines. I also want to be able to use this for only the current
goroutine's stack. Add a bool param to support both ways.
Updates tailscale/corp#5149
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Also fix a js/wasm issue with tsnet in the process. (same issue as WASI)
Updates #8320Fixes#8315
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
58ab66ec51 added LDAP support
for #4945 by shelling out to getdent.
It was supposed to fall back to the old method when getdent wasn't
found, but some variable name confusion (uid vs username) meant the
old path wasn't calling the right lookup function (user.LookupId
instead of user.Lookup).
Which meant that changed probably also broke FreeBSD and macOS SSH
support in addition to the reported OpenWRT regression.
The gokrazy support didn't look right either.
Fixes#8180
Change-Id: I273bbe96fe98b2517fbf0335fd476b483c051554
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The client/tailscale is a stable-ish API we try not to break. Revert
the Client.CreateKey method as it was and add a new
CreateKeyWithExpiry method to do the new thing. And document the
expiry field and enforce that the time.Duration can't be between in
range greater than 0 and less than a second.
Updates #7143
Updates #8124 (reverts it, effectively)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We have two other types of Sets here. Add the basic obvious one too.
Needed for a change elsewhere.
Updates #cleanup
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
I noticed cmd/{cloner,viewer} didn't support structs with embedded
fields while working on a change in another repo. This adds support.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The previous commit 58ab66e added ssh/tailssh/user.go as part of
working on #4945. So move some more user-related code over to it.
Updates #cleanup
Change-Id: I24de66df25ffb8f867e1a0a540d410f9ef16d7b0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It was supposed to be best effort but in some cases (macsys at least,
per @marwan-at-work) it hangs and exhausts the whole context.Context
deadline so we fail to make the SetDNS call to the server.
Updates #8067
Updates #3273 etc
Change-Id: Ie1f04abe9689951484748aecdeae312afbafdb0f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is part of an effort to clean up tailscaled initialization between
tailscaled, tailscaled Windows service, tsnet, and the mac GUI.
Updates #8036
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This holds back gvisor, kubernetes, goreleaser, and esbuild, which all
had breaking API changes.
Updates #8043
Updates #7381
Updates #8042 (updates u-root which adds deps)
Change-Id: I889759bea057cd3963037d41f608c99eb7466a5b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Looks like on some systems there's an IPv6 address, but then opening
a IPv6 UDP socket fails later. Probably some firewall. Tolerate it
better and don't crash.
To repro: check the "udp6" to something like "udp7" (something that'll
fail) and run "go run ./cmd/tailscale netcheck" on a machine with
active IPv6. It used to crash and now it doesn't.
Fixes#7949
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
TestMonitorMode skips by default, without the --monitor flag, and then
it previously ran forever. This adds an option --monitor-duration flag
that defaults to zero (run forever) but if non-zero bounds how long
the tests runs. This means you can then also use e.g. `go test
--cpuprofile` and capture a CPU/mem profile for a minute or two.
Updates #7621
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is a continuation of the earlier 2a67beaacf but more aggressive;
this now remembers that we failed to find the "home" router IP so we
don't try again later on the next call.
Updates #7621
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The comment still said *magicsock.Conn implemented wireguard-go conn.Bind.
That wasn't accurate anymore.
A doc #cleanup.
Change-Id: I7fd003b939497889cc81147bfb937b93e4f6865c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
So we're staying within the netip.Addr/AddrPort consistently and
avoiding allocs/conversions to the legacy net addr types.
Updates #5162
Change-Id: I59feba60d3de39f773e68292d759766bac98c917
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
To get the tree green again for other people.
Updates #7866
Change-Id: Ibdad2e1408e5f0c97e49a148bfd77aad17c2c5e5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
I explained this tails/scales list to my 5yo and he looked at me like
it was the most obvious idea ever. Of course we'd make such lists at
work! What else do grown-ups do all day? And then he wouldn't stop
talking about coelacanths and I had no clue what he was saying or how
to spell it until I asked my phone and the phone apparently understood
me and I realized it was a fish and he was helping me? I think?
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
No ListenPacket support yet, but Listen with a udp network type fit
easier into netstack's model to start.
Then added an example of using it to cmd/sniproxy with a little udp
:53 handler.
No tests in tsnet yet because we don't have support for dialing over
UDP in tsnet yet. When that's done, a new test can test both sides.
Updates #5871
Updates #1748
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
No particular reason. Just good point of our release cycle for some #cleanup.
It also makes dependabot happy about something we're not using?
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
For tailscale/go#55 experimentation in another repo primarily,
but this is our source of truth, so we bump here.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We don't require any cert at all for Noise-over-plaintext-port-80-HTTP,
so why require a valid cert chain for Noise-over-HTTPS? The reason we use
HTTPS at all is to get through firewalls that allow tcp/443 but not tcp/80,
not because we need the security properties of TLS.
Updates #3198
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Updates #7123
Updates #6257 (more to do in other repos)
Change-Id: I073e2a6d81a5d7fbecc29caddb7e057ff65239d0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It doesn't yet support Go 1.20. We can bring it back later.
Updates #7123
Change-Id: I6c4a4090e910d06f34c3f4d612e737989fe85812
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It's since been rewritten in Swift.
#cleanup
Change-Id: I0860d681e8728697804ce565f63c5613b8b1088c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
For detecting a non-ideal binary running on the current CPU.
And for helping detect the best Synology package to update to.
Updates #6995
Change-Id: I722f806675b60ce95364471b11c388150c0d4aea
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Per recent user confusion on a QNAP issue.
Change-Id: Ibda00013df793fb831f4088b40be8a04dfad17c2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Add `tailscale version --json` JSON output mode. This will be used
later for a double-opt-in (per node consent like Tailscale SSH +
control config) to let admins do remote upgrades via `tailscale
update` via a c2n call, which would then need to verify the
cmd/tailscale found on disk for running tailscale update corresponds
to the running tailscaled, refusing if anything looks amiss.
Plus JSON output modes are just nice to have, rather than parsing
unstable/fragile/obscure text formats.
Updates #6995
Updates #6907
Change-Id: I7821ab7fbea4612f4b9b7bdc1be1ad1095aca71b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
They changed a type in their SDK which meant others using the AWS APIs
in their Go programs (with newer AWS modules in their caller go.mod)
and then depending on Tailscale (for e.g. tsnet) then couldn't compile
ipn/store/awsstore.
Thanks to @thisisaaronland for bringing this up.
Fixes#7019
Change-Id: I8d2919183dabd6045a96120bb52940a9bb27193b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
