Commit Graph

7632 Commits (2d2b62c4000d7c62845ad32cfc90d5f5f0cfcf76)
 

Author SHA1 Message Date
Brad Fitzpatrick 2d2b62c400 wgengine/router: probe generally-unused "ip" command style lazily
This busybox fwmaskWorks check was added before we moved away from
using the "ip" command to using netlink directly.

So it's now just wasted work (and log spam on Gokrazy) to check the
"ip" command capabilities if we're never going to use it.

Do it lazily instead.

Updates #12277

Change-Id: I8ab9acf64f9c0d8240ce068cb9ec8c0f6b1ecee7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 909a292a8d util/linuxfw: don't try cleaning iptables on gokrazy
It just generates log spam.

Updates #12277

Change-Id: I5f65c0859e86de0a5349f9d26c9805e7c26b9371
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Walter Poupore 0acb61fbf8
serve.go, tsnet.go: Fix "in in" typo (#12279)
Fixes #cleanup

Signed-off-by: Walter Poupore <walterp@tailscale.com>
6 months ago
Andrea Gottardo dd77111462
xcode/iOS: set MatchDomains when no route requires a custom DNS resolver (#10576)
Updates https://github.com/tailscale/corp/issues/15802.

On iOS exclusively, this PR adds logic to use a split DNS configuration in more cases, with the goal of improving battery life. Acting as the global DNS resolver on iOS should be avoided, as it leads to frequent wakes of IPNExtension.

We try to determine if we can have Tailscale only handle DNS queries for resources inside the tailnet, that is, all routes in the DNS configuration do not require a custom resolver (this is the case for app connectors, for instance).

If so, we set all Routes as MatchDomains. This enables a split DNS configuration which will help preserve battery life. Effectively, for the average Tailscale user who only relies on MagicDNS to resolve *.ts.net domains, this means that Tailscale DNS will only be used for those domains.

This PR doesn't affect users with Override Local DNS enabled. For these users, there should be no difference and Tailscale will continue acting as a global DNS resolver.

Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
6 months ago
Percy Wegmann 08a9551a73 ssh/tailssh: fall back to using su when no TTY available on Linux
This allows pam authentication to run for ssh sessions, triggering
automation like pam_mkhomedir.

Updates #11854

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Claire Wang f1d10c12ac
ipn/ipnlocal: allowed suggested exit nodes policy (#12240)
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
signed-long 5ad0dad15e
go generate directives reorder for 'make kube-generate-all' (#12210)
Fixes #11980

Signed-off-by: Michael Long <michaelongdev@gmail.com>
6 months ago
Irbe Krumina d0d33f257f
cmd/k8s-operator: add a note pointing at ProxyClass (#12246)
Updates tailscale/tailscale#12242

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Andrew Dunham 8e4a29433f util/pool: add package for storing and using a pool of items
This can be used to implement a persistent pool (i.e. one that isn't
cleared like sync.Pool is) of items–e.g. database connections.

Some benchmarks vs. a naive implementation that uses a single map
iteration show a pretty meaningful improvement:

    $ benchstat -col /impl ./bench.txt
    goos: darwin
    goarch: arm64
    pkg: tailscale.com/util/pool
                       │    Pool     │                   map                    │
                       │   sec/op    │     sec/op      vs base                  │
    Pool_AddDelete-10    10.56n ± 2%     15.11n ±  1%    +42.97% (p=0.000 n=10)
    Pool_TakeRandom-10   56.75n ± 4%   1899.50n ± 20%  +3246.84% (p=0.000 n=10)
    geomean              24.49n          169.4n         +591.74%

Updates tailscale/corp#19900

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ie509cb65573c4726cfc3da9a97093e61c216ca18
6 months ago
James Tucker 87ee559b6f net/netcheck: apply some polish suggested from #12161
Apply some post-submit code review suggestions.

Updates #12161
Updates tailscale/corp#19106

Signed-off-by: James Tucker <james@tailscale.com>
6 months ago
Maisem Ali 9a64c06a20 all: do not depend on the testing package
Discovered while looking for something else.

Updates tailscale/corp#18935

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Jordan Whited 4214e5f71b
logtail/backoff: update Backoff.BackOff docs (#12229)
Update #cleanup

Signed-off-by: Jordan Whited <jordan@tailscale.com>
6 months ago
James Tucker 538c2e8f7c tool/gocross: add debug data to CGO builds
We don't build a lot of tools with CGO, but we do build some, and it's
extremely valuable for production services in particular to have symbols
included - for perf and so on.

I tested various other builds that could be affected negatively, in
particular macOS/iOS, but those use split-dwarf already as part of their
build path, and Android which does not currently use gocross.

One binary which is normally 120mb only grew to 123mb, so the trade-off
is definitely worthwhile in context.

Updates tailscale/corp#20296

Signed-off-by: James Tucker <james@tailscale.com>
6 months ago
Brad Fitzpatrick 3c9be07214 cmd/derper: support TXT-mediated unpublished bootstrap DNS rollouts
Updates tailscale/coral#127

Change-Id: I2712c50630d0d1272c30305fa5a1899a19ffacef
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Irbe Krumina 72f0f53ed0
cmd/k8s-operator: fix typo (#12217)
Fixes#cleanup

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
James Tucker 9351eec3e1 net/netcheck: remove hairpin probes
Palo Alto reported interpreting hairpin probes as LAND attacks, and the
firewalls may be responding to this by shutting down otherwise in use NAT sessions
prematurely. We don't currently make use of the outcome of the hairpin
probes, and they contribute to other user confusion with e.g. the
AirPort Extreme hairpin session workaround. We decided in response to
remove the whole probe feature as a result.

Updates #188
Updates tailscale/corp#19106
Updates tailscale/corp#19116

Signed-off-by: James Tucker <james@tailscale.com>
6 months ago
Andrew Lytvynov c9179bc261
various: disable stateful filtering by default (#12197)
After some analysis, stateful filtering is only necessary in tailnets
that use `autogroup:danger-all` in `src` in ACLs. And in those cases
users explicitly specify that hosts outside of the tailnet should be
able to reach their nodes. To fix local DNS breakage in containers, we
disable stateful filtering by default.

Updates #12108

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
License Updater 6db1219185 licenses: update license notices
Signed-off-by: License Updater <noreply+license-updater@tailscale.com>
6 months ago
Charlotte Brandhorst-Satzkorn 4f4f317174 api.md: direct TOC links to new publicapi docs location
This change updates the existing api.md TOC links to point at the new
publicapi folder/files. It also removes the body of the docs from the
file, to avoid the docs becoming out of sync.

This change also renames overview.md to readme.md.

Updates tailscale/corp#19526

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
6 months ago
Brad Fitzpatrick 964282d34f ipn,wgengine: remove vestigial Prefs.AllowSingleHosts
It was requested by the first customer 4-5 years ago and only used
for a brief moment of time. We later added netmap visibility trimming
which removes the need for this.

It's been hidden by the CLI for quite some time and never documented
anywhere else.

This keeps the CLI flag, though, out of caution. It just returns an
error if it's set to anything but true (its default).

Fixes #12058

Change-Id: I7514ba572e7b82519b04ed603ff9f3bdbaecfda7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 1384c24e41 control/controlclient: delete unused Client.Login Oauth2Token field
Updates #12172 (then need to update other repos)

Change-Id: I439f65e0119b09e00da2ef5c7a4f002f93558578
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Andrew Dunham 47b3476eb7 util/lru: add Clear method
Updates tailscale/corp#20109

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I751a669251a70f0134dd1540c19b274a97608a93
6 months ago
Charlotte Brandhorst-Satzkorn c56e0c4934
publicapi: include device and user invites API documentation (#12168)
This change includes the device and user invites API docs in the
new publicapi documentation structure.

Updates tailscale/corp#19526

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
6 months ago
Jordan Whited adb7a86559
cmd/stunc: support ipv6 address targets (#12166)
Updates #cleanup

Signed-off-by: Jordan Whited <jordan@tailscale.com>
6 months ago
James Tucker 8d1249550a net/netcheck,wgengine/magicsock: add potential workaround for Palo Alto DIPP misbehavior
Palo Alto firewalls have a typically hard NAT, but also have a mode
called Persistent DIPP that is supposed to provide consistent port
mapping suitable for STUN resolution of public ports. Persistent DIPP
works initially on most Palo Alto firewalls, but some models/software
versions have a bug which this works around.

The bug symptom presents as follows:

- STUN sessions resolve a consistent public IP:port to start with
- Much later netchecks report the same IP:Port for a subset of
  sessions, most often the users active DERP, and/or the port related
  to sustained traffic.
- The broader set of DERPs in a full netcheck will now consistently
  observe a new IP:Port.
- After this point of observation, new inbound connections will only
  succeed to the new IP:Port observed, and existing/old sessions will
  only work to the old binding.

In this patch we now advertise the lowest latency global endpoint
discovered as we always have, but in addition any global endpoints that
are observed more than once in a single netcheck report. This should
provide viable endpoints for potential connection establishment across
a NAT with this behavior.

Updates tailscale/corp#19106

Signed-off-by: James Tucker <james@tailscale.com>
6 months ago
Charlotte Brandhorst-Satzkorn 6831a29f8b
publicapi: create new home for API docs and split into catagory files (#12116)
This change creates a new folder called publicapi that will become the
future home to the Tailscale public API docs.

This change also splits the existing API docs (still located in api.md)
into separate files, for easier reading and contribution.

Updates tailscale/corp#19526

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
6 months ago
Andrea Gottardo e5f67f90a2
xcode: allow ICMP ping relay on macOS + iOS platforms (#12048)
Fixes tailscale/tailscale#10393
Fixes tailscale/corp#15412
Fixes tailscale/corp#19808

On Apple platforms, exit nodes and subnet routers have been unable to relay pings from Tailscale devices to non-Tailscale devices due to sandbox restrictions imposed on our network extensions by Apple. The sandbox prevented the code in netstack.go from spawning the `ping` process which we were using.

Replace that exec call with logic to send an ICMP echo request directly, which appears to work in userspace, and not trigger a sandbox violation in the syslog.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
6 months ago
Percy Wegmann 59848fe14b drive: rewrite LOCK paths
Fixes #12097

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
James Tucker 87f00d76c4 tool/gocross: treat empty GOOS/GOARCH as native GOOS/GOARCH
Tracking down the side effect can otherwise be a pain, for example on
Darwin an empty GOOS resulted in CGO being implicitly disabled. The user
intended for `export GOOS=` to act like unset, and while this is a
misunderstanding, the main toolchain would treat it this way.

Fixes tailscale/corp#20059

Signed-off-by: James Tucker <james@tailscale.com>
6 months ago
Irbe Krumina 76c30e014d
cmd/containerboot: warn when an ingress proxy with an IPv4 tailnet address is being created for an IPv6 backend(s) (#12159)
Updates tailscale/tailscale#12156

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Maisem Ali 8feb4ff5d2 version: add GitCommitTime to Meta
Updates tailscale/corp#1297

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Maisem Ali 359ef61263 Revert "version: add Info func to expose EmbeddedInfo"
This reverts commit e3dec086e6.

Going to reuse Meta instead as that is already exported.

Updates tailscale/corp#1297

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Sonia Appasamy 89947606b2 api.md: document device invite apis
Updates tailscale/corp#18153

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
6 months ago
Sonia Appasamy b094e8c925 api.md: document user invite apis
Updates tailscale/corp#18153

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
6 months ago
Maisem Ali e3dec086e6 version: add Info func to expose EmbeddedInfo
To be used to in a different repo.

Updates tailscale/corp#1297

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Kevin Liang 7f83f9fc83 Net/DNS/Publicdns: update the IPv6 range that we use to recreate route endpoint for control D
In this commit I updated the Ipv6 range we use to generate Control D DOH ip, we were using the NextDNSRanges to generate Control D DOH ip, updated to use the correct range.

Updates: #7946
Signed-off-by: Kevin Liang <kevinliang@tailscale.com>
6 months ago
Brad Fitzpatrick 6877d44965 prober: plumb a now-required netmon to derphttp
Updates #11896

Change-Id: Ie2f9cd024d85b51087d297aa36c14a9b8a2b8129
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Maisem Ali 1f51bb6891 net/tstun: do SNAT after filterPacketOutboundToWireGuard
In a configuration where the local node (ip1) has a different IP (ip2)
that it uses to communicate with a peer (ip3) we would do UDP flow
tracking on the `ip2->ip3` tuple. When we receive the response from
the peer `ip3->ip2` we would dnat it back to `ip3->ip1` which would
then not match the flow track state and the packet would get dropped.

To fix this, we should do flow tracking on the `ip1->ip3` tuple instead
of `ip2->ip3` which requires doing SNAT after the running filterPacketOutboundToWireGuard.

Updates tailscale/corp#19971, tailscale/corp#8020

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Andrea Gottardo 60266be298
version: fix macOS uploads by increasing build number prefix (#12134)
Fixes tailscale/corp#19979

A build with version number 275 was uploaded to the App Store without bumping OSS first. The presence of that build is causing any 274.* build to be rejected. To address this, added -1 to the year component, which means new builds will use the 275.* prefix.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
6 months ago
Andrew Dunham c6d42b1093 derp: remove stats goroutine, use a timer
Without changing behaviour, don't create a goroutine per connection that
sits and sleeps, but rather use a timer that wakes up and gathers
statistics on a regular basis.

Fixes #12127

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ibc486447e403070bdc3c2cd8ae340e7d02854f21
6 months ago
Irbe Krumina 7ef2f72135
util/linuxfw: fix IPv6 availability check for nftables (#12009)
* util/linuxfw: fix IPv6 NAT availability check for nftables

When running firewall in nftables mode,
there is no need for a separate NAT availability check
(unlike with iptables, there are no hosts that support nftables, but not IPv6 NAT - see tailscale/tailscale#11353).
This change fixes a firewall NAT availability check that was using the no-longer set ipv6NATAvailable field
by removing the field and using a method that, for nftables, just checks that IPv6 is available.

Updates tailscale/tailscale#12008

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Brad Fitzpatrick 8aa5c3534d ipn/ipnlocal: simplify authURL vs authURLSticky, remove interact field
The previous LocalBackend & CLI 'up' changes improved some stuff, but
might've been too aggressive in some edge cases.

This simplifies the authURL vs authURLSticky distinction and removes
the interact field, which seemed to just just be about duplicate URL
suppression in IPN bus, back from when the IPN bus was a single client
at a time. This moves that suppression to a different spot.

Fixes #12119
Updates #12028
Updates #12042

Change-Id: I1f8800b1e82ccc1c8a0d7abba559e7404ddf41e4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Parker Higgins 7b3e30f391
words: add some fruit with scales (#8460)
Signed-off-by: Parker Higgins <parker@tailscale.com>
6 months ago
Maisem Ali 79b2d425cf types/views: move AsMap to Map from *Map
This was a typo in 2e19790f61.
It should have been on `Map` and not on `*Map` as otherwise
it doesn't allow for chaining like `someView.SomeMap().AsMap()`
and requires first assigning it to a variable.

Updates #typo

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Charlotte Brandhorst-Satzkorn fc1ae97e10
words: I had a feline we were missing some words (#12098)
pspspsps

Updates #tailscale/corp#14698

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
6 months ago
Maisem Ali 486a423716 tsnet: split user facing and backend logging
This adds a new `UserLogf` field to the `Server` struct.
When set this any logs generated by Server are logged using
`UserLogf` and all spammy backend logs are logged to `Logf`.

If it `UserLogf` is unset, we default to `log.Printf` and
if `Logf` is unset we discard all the spammy logs.

Fixes #12094

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Percy Wegmann 7209c4f91e drive: parse depth 1 PROPFIND results to include children in cache
Clients often perform a PROPFIND for the parent directory before
performing PROPFIND for specific children within that directory.
The PROPFIND for the parent directory is usually done at depth 1,
meaning that we already have information for all of the children.
By immediately adding that to the cache, we save a roundtrip to
the remote peer on the PROPFIND for the specific child.

Updates tailscale/corp#19779

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Irbe Krumina d86d1e7601
cmd/k8s-operator,cmd/containerboot,ipn,k8s-operator: turn off stateful filter for egress proxies. (#12075)
Turn off stateful filtering for egress proxies to allow cluster
traffic to be forwarded to tailnet.

Allow configuring stateful filter via tailscaled config file.

Deprecate EXPERIMENTAL_TS_CONFIGFILE_PATH env var and introduce a new
TS_EXPERIMENTAL_VERSIONED_CONFIG env var that can be used to provide
containerboot a directory that should contain one or more
tailscaled config files named cap-<tailscaled-cap-version>.hujson.
Containerboot will pick the one with the newest capability version
that is not newer than its current capability version.

Proxies with this change will not work with older Tailscale
Kubernetes operator versions - users must ensure that
the deployed operator is at the same version or newer (up to
4 version skew) than the proxies.

Updates tailscale/tailscale#12061

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Co-authored-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Claire Wang e070af7414
ipnlocal, magicsock: add more description to storing last suggested exit (#11998)
node related functions
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Andrew Dunham 5708fc0639 wgengine/router: print Docker warning when stateful filtering is enabled
When Docker is detected on the host and stateful filtering is enabled,
Docker containers may be unable to reach Tailscale nodes (depending on
the network settings of a container). Detect Docker when stateful
filtering is enabled and print a health warning to aid users in noticing
this issue.

We avoid printing the warning if the current node isn't advertising any
subnet routes and isn't an exit node, since without one of those being
true, the node wouldn't have the correct AllowedIPs in WireGuard to
allow a Docker container to connect to another Tailscale node anyway.

Updates #12070

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Idef538695f4d101b0ef6f3fb398c0eaafc3ae281
6 months ago