Commit Graph

941 Commits (6d84f3409bfb36ceed207563fac01e7b68423c58)

Author SHA1 Message Date
Andrew Dunham 6d84f3409b ipn/ipnlocal: handle more edge cases in netmap expiry timer
We now handle the case where the NetworkMap.SelfNode has already expired
and do not return an expiry time in the past (which causes an ~infinite
loop of timers to fire).

Additionally, we now add an explicit check to ensure that the next
expiry time is never before the current local-to-the-system time, to
ensure that we don't end up in a similar situation due to clock skew.

Finally, we add more tests for this logic to ensure that we don't
regress on these edge cases.

Fixes #7193

Change-Id: Iaf8e3d83be1d133a7aab7f8d62939e508cc53f9c
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2 years ago
Tom DNetto 99b9d7a621 all: implement pcap streaming for datapath debugging
Updates: tailscale/corp#8470

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Maisem Ali 6bae55e351 ipn/ipnlocal: add support to store certs in k8s secrets
Fixes #5676

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
David Crawshaw 8cf2805cca tailcfg, localapi: plumb device token to server
Updates tailscale/corp#8940

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Andrew Dunham d2301db49c ipn/localapi: print node IDs, pubkeys, and expiry on bugreport
Having this information near the "user bugreport" line makes it easier
to identify the node and expiry without spelunking through the rest of
the logs.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1597c783efc06574fa4c8f211e68d835f20b6ccb
2 years ago
Andrew Dunham 5ba2543828 ipn/ipnlocal: print warning about DNS servers in bugreport --diagnose
If the user passes the --diagnose flag, print a warning if any of the
default or fallback DNS resolvers are Tailscale IPs. This can interfere
with the ability to connect to the controlplane, and is typically
something to pay attention to if there's a connectivity issue.

Change-Id: Ib14bf6228c037877fbdcd22b069212b1a4b2c456
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Brad Fitzpatrick cf8dd7aa09 all: use Go 1.20's bytes.Clone
Updates #7123
Updates #6257 (more to do in other repos)

Change-Id: I073e2a6d81a5d7fbecc29caddb7e057ff65239d0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick b1248442c3 all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork
Updates #7123
Updates #5309

Change-Id: I90bcd87a2fb85a91834a0dd4be6e03db08438672
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Crawshaw 4136f27f35 ipn/localapi: fix validHost parsing logic
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Andrew Dunham d1146dc701 ipn/ipnlocal: rate-limit diagnose logs in bugreport
We can log too quickly for logtail to catch up, even when we opt out of
log rate-limiting. When the user passes the --diagnose flag to
bugreport, we use a token bucket to control how many logs per second are
printed and sleep until we're able to write more.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: If27672d66b621b589280bd0fe228de367ffcbd8f
2 years ago
Maisem Ali 04b57a371e ipn/ipnlocal: drop not required StateKey parameter
This is #cleanup now that #7121 is merged.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 4441609d8f safesocket: remove the now unused WindowsLocalPort
Also drop the port param from safesocket.Listen. #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Mihai Parparita 4973956419 ipn/ipnlocal: add /reset-auth LocalAPI endpoint
The iOS has a command to reset the persisted state of the app, but it
was doing its own direct keychain manipulation. This proved to be
brittle (since we changed how preferences are stored with #6022), so
we instead add a LocalAPI endpoint to do do this, which can be updated
in tandem.

This clears the same state as the iOS implementation (tailscale/corp#3186),
that is the machine key and preferences (which includes the node key).
Notably this does not clear the logtail ID, so that logs from the device
still end up in the same place.

Updates tailscale/corp#8923

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Brad Fitzpatrick a1b4ab34e6 util/httpm: add new package for prettier HTTP method constants
See package doc.

Change-Id: Ibbfc8e1f98294217c56f3a9452bd93ffa3103572
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Andrew Dunham 2703d6916f net/netns: add functionality to bind outgoing sockets based on route table
When turned on via environment variable (off by default), this will use
the BSD routing APIs to query what interface index a socket should be
bound to, rather than binding to the default interface in all cases.

Updates #5719
Updates #5940

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ib4c919471f377b7a08cd3413f8e8caacb29fee0b
2 years ago
Andrew Dunham 44d73ce932 ipn/ipnlocal, net/dnscache: allow configuring dnscache logging via capability
This allows users to temporarily enable/disable dnscache logging via a
new node capability, to aid in debugging strange connectivity issues.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I46cf2596a8ae4c1913880a78d0033f8b668edc08
2 years ago
Brad Fitzpatrick 6e5faff51e ipn/ipnlocal: add health warning for Tailscale SSH + SELinux
Updates #4908

Change-Id: If46be5045b13dd5c3068c334642f89b5917ec861
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick c8db70fd73 cmd/tailscale/cli: add debug set-expire command for testing
Updates tailscale/corp#8811
Updates tailscale/corp#8613

Change-Id: I1c87806ca3ccc5c43e7ddbd6b4d521f73f7d29f1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Andrew Dunham 140b9aad5c ipn/ipnlocal: fire expiry timer when the current node expires
The current node isn't in NetMap.Peers, so without this we would not
have fired this timer on self expiry.

Updates #6932

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id57f96985397e372f9226802d63b42ff92c95093
2 years ago
Brad Fitzpatrick 06fff461dc ipn/ipnstate: add PeerStatus.KeyExpiry for tailscale status --json
Fixes #6712

Change-Id: I817cd5342fac8a956fcefda2d63158fa488f3395
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick b6aa1c1f22 envknob, hostinfo, ipn/ipnlocal: add start of opt-in remote update support
Updates #6907

Change-Id: I85db4f6f831dd5ff7a9ef4bfa25902607e0c1558
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
shayne 4471e403aa
ipn/ipnlocal: [serve] listen on all-interfaces for macOS sandboxed (#6771)
On macOS (AppStore and macsys), we need to bind to ""/all-interfaces
due to the network sandbox. Ideally we would only bind to the
Tailscale interface, but macOS errors out if we try to
to listen on privileged ports binding only to a specific
interface.

We also implement the lc.Control hook, same as we do for
peerapi. It doesn't solve our problem but it's better that
we do and would likely be required when Apple gets around to
fixing per-interface priviliged port binding.

Fixes: #6364

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Brad Fitzpatrick 6793685bba go.mod: bump AWS SDK past a breaking API change of theirs
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>
2 years ago
Brad Fitzpatrick 6edf357b96 all: start groundwork for using capver for localapi & peerapi
Updates #7015

Change-Id: I3d4c11b42a727a62eaac3262a879f29bb4ce82dd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
salman eec734a578 ipn/{ipnlocal,localapi}: ensure watcher is installed before /watch-ipn-bus/ responds with 200
This change delays the first flush in the /watch-ipn-bus/ handler
until after the watcher has been successfully installed on the IPN
bus. It does this by adding a new onWatchAdded callback to
LocalBackend.WatchNotifications().

Without this, the endpoint returns a 200 almost immediatly, and
only then installs a watcher for IPN events.  This means there's a
small window where events could be missed by clients after calling
WatchIPNBus().

Fixes tailscale/corp#8594.

Signed-off-by: salman <salman@tailscale.com>
2 years ago
Brad Fitzpatrick b657187a69 cmd/tailscale, logtail: add 'tailscale debug daemon-logs' logtail mechanism
Fixes #6836

Change-Id: Ia6eb39ff8972e1aa149aeeb63844a97497c2cf04
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Andrew Dunham 3a018e51bb ipn/ipnlocal: move handling of expired nodes to LocalBackend
In order to be able to synthesize a new NetMap when a node expires, have
LocalBackend start a timer when receiving a new NetMap that fires
slightly after the next node expires. Additionally, move the logic that
updates expired nodes into LocalBackend so it runs on every netmap
(whether received from controlclient or self-triggered).

Updates #6932

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I833390e16ad188983eac29eb34cc7574f555f2f3
2 years ago
Mihai Parparita 67f82e62a1 ipn/ipnlocal: add Expired to PeerStatus
Needed for clients that get information via the /v0/status LocalAPI
endpoint (e.g. to not offer expired exit nodes as options).

Updates tailscale/corp#8702

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 11ce5b7e57 ipn/ipnlocal, wgengine/magicsock: check Expired bool on Node; print error in Ping
Change-Id: Ic5f533f175a6e1bb73d4957d8c3f970add42e82e
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2 years ago
Brad Fitzpatrick 61dfbc0a6e cmd/tailscale/cli: plumb TUN mode into tailscale web template
UI works remains, but data is there now.

Updates #4015

Change-Id: Ib91e94718b655ad60a63596e59468f3b3b102306
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
James Tucker 2afa1672ac ipn/ipnlocal: disallow unsigned peers from WoL
Unsigned peers should not be allowed to generate Wake-on-Lan packets,
only access Funnel.

Updates #6934
Updates #7515
Updates #6475

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Brad Fitzpatrick 1116602d4c ssh/tailssh: add OpenBSD support for Tailscale SSH
And bump go.mod for https://github.com/u-root/u-root/pull/2593

Change-Id: I36ec94c5b2b76d671cb739f1e9a1a43ca1d9d1b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 69c0b7e712 ipn/ipnlocal: add c2n handler to flush logtail for support debugging
Updates tailscale/corp#8564

Change-Id: I0c619d4007069f90cffd319fba66bd034d63e84d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Tom DNetto 0088c5ddc0 health,ipn/ipnlocal: report the node being locked out as a health issue
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Tom DNetto 907f85cd67 cmd/tailscale,tka: make KeyID return an error instead of panicking
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Kristoffer Dalby c4e262a0fc
ipn/profiles: set default prefs based on Windows registry (#6803)
Co-authored-by: Maisem Ali maisem@tailscale.com
2 years ago
Brad Fitzpatrick eafbf8886d ipn/localapi: add localapi debug endpoints for packet filter/matches
For debugging #6423. This is easier than TS_DEBUG_MAP, as this means I
can pipe things into jq, etc.

Updates #6423

Change-Id: Ib3e7496b2eb3f47d4bed42e9b8045a441424b23c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Anderson 91e64ca74f cmd/tailscale/cli: redact private key in debug netmap output by default
This makes `tailscale debug watch-ipn` safe to use for troubleshooting
user issues, in addition to local debugging during development.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Brad Fitzpatrick aad6830df0 util/codegen, all: use latest year, not time.Now, in generated files
Updates #6865

Change-Id: I6b86c646968ebbd4553cf37df5e5612fbf5c5f7d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Anton Tolchanov 82b9689e25
ipn/ipnlocal: maintain a proxy handler per backend (#6804)
By default, `http.Transport` keeps idle connections open hoping to re-use them in the future. Combined with a separate transport per request in HTTP proxy this results in idle connection leak.

Fixes #6773
2 years ago
Brad Fitzpatrick 0f604923d3 ipn/ipnlocal: fix StatusWithoutPeers not populating parts of Status
Fixes #4311

Change-Id: Iaae0615148fa7154f4ef8f66b455e3a6c2fa9df3
Co-authored-by: Claire Wang <claire@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Anton Tolchanov 53c4892841 ipn/ipnserver: propagate http.Serve error
This ensures that we capture error returned by `Serve` and exit with a
non-zero exit code if it happens.

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Joe Tsai bd2995c14b
ipn/ipnlocal: simplify redactErr (#6716)
Use multierr.Range to iterate through an error tree
instead of multiple invocations of errors.As.
This scales better as we add more Go error types to the switch.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Mihai Parparita 47002d93a3 ipn/ipnlocal: add a few metrics for PeerAPI and LocalAPI
Mainly motivated by wanting to know how much Taildrop is used, but
also useful when tracking down how many invalid requests are
generated.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
salman 2d271f3bd1 ipn/ipnlocal: disallow exit nodes from using exit nodes
Nodes which have both -advertise-exit-node and -exit-node in prefs
should continue have them until the next invocation of `tailscale up`.

Updates #3569.

Signed-off-by: salman <salman@tailscale.com>
2 years ago
shayne 98114bf608
cmd/tailscale/cli, ipn/localapi: add funnel status to status command (#6402)
Fixes #6400

open up GETs for localapi serve-config to allow read-only access to
ServeConfig

`tailscale status` will include "Funnel on" status when Funnel is
configured. Prints nothing if Funnel is not running.

Example:

 $ tailscale status
 <nodes redacted>

 # Funnel on:
 #     - https://node-name.corp.ts.net
 #     - https://node-name.corp.ts.net:8443
 #     - tcp://node-name.corp.ts.net:10000

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Tom DNetto 55e0512a05 ipn/ipnlocal,cmd/tailscale: minor improvements to lock modify command
* Do not print the status at the end of a successful operation
 * Ensure the key of the current node is actually trusted to make these changes

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Andrew Dunham a887ca7efe ipn/ipnlocal: improve redactErr to handle more cases
This handles the case where the inner *os.PathError is wrapped in
another error type, and additionally will redact errors of type
*os.LinkError. Finally, add tests to verify that redaction works.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ie83424ff6c85cdb29fb48b641330c495107aab7c
2 years ago
Brad Fitzpatrick 1598cd0361 net/tsaddr: remove ContainsFunc helpers (they're now in x/exp/slices)
x/exp/slices now has ContainsFunc (golang/go#53983) so we can delete
our versions.

Change-Id: I5157a403bfc1b30e243bf31c8b611da25e995078
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago