Commit Graph

77 Commits (c0c182f48718bc70a1a7ae441316dfe1988544bd)

Author SHA1 Message Date
Mihai Parparita 7330aa593e all: avoid repeated default interface lookups
On some platforms (notably macOS and iOS) we look up the default
interface to bind outgoing connections to. This is both duplicated
work and results in logspam when the default interface is not available
(i.e. when a phone has no connectivity, we log an error and thus cause
more things that we will try to upload and fail).

Fixed by passing around a netmon.Monitor to more places, so that we can
use its cached interface state.

Fixes #7850
Updates #7621

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 4722f7e322 all: move network monitoring from wgengine/monitor to net/netmon
We're using it in more and more places, and it's not really specific to
our use of Wireguard (and does more just link/interface monitoring).

Also removes the separate interface we had for it in sockstats -- it's
a small enough package (we already pull in all of its dependencies
via other paths) that it's not worth the extra complexity.

Updates #7621
Updates #7850

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 280255acae
various: add golangci-lint, fix issues (#7905)
This adds an initial and intentionally minimal configuration for
golang-ci, fixes the issues reported, and adds a GitHub Action to check
new pull requests against this linter configuration.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8f38fbc315836a19a094d0d3e986758b9313f163
2 years ago
Mihai Parparita 9a655a1d58 net/dnsfallback: more explicitly pass through logf function
Redoes the approach from #5550 and #7539 to explicitly pass in the logf
function, instead of having global state that can be overridden.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Maisem Ali 920ec69241 tsnet,wgenegine/netstack: add test and fix resource leaks
We were not closing the http.Server and were also not waiting for
netstack to fully close.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali d39a5e4417 tsnet: support TS_AUTH_KEY variant too
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 57a008a1e1 all: pass log IDs as the proper type rather than strings
This change focuses on the backend log ID, which is the mostly commonly
used in the client.  Tests which don't seem to make use of the log ID
just use the zero value.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Maisem Ali f34590d9ed tsnet: add test for Funnel connections
For the logic added in b797f77.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali c6d96a2b61 tsnet: do not start logtail in tests
It was trying to upload logs in tests.

skip-issuebot

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali b4d3e2928b tsnet: avoid deadlock on close
tsnet.Server.Close was calling listener.Close with the server mutex
held, but the listener close method tries to grab that mutex, resulting
in a deadlock.

Co-authored-by: David Crawshaw <crawshaw@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 5e8a80b845 all: replace /kb/ links with /s/ equivalents
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 558735bc63 cmd/k8s-operator: require HTTPS to be enabled for AuthProxy
Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Andrew Dunham 83fa17d26c various: pass logger.Logf through to more places
Updates #7537

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id89acab70ea678c8c7ff0f44792d54c7223337c6
2 years ago
Maisem Ali 958c89470b
tsnet: add CertDomains helper (#7533)
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
shayne e109cf9fdd
tsnet/tsnet: clear ipn.ServeConfig on Up for tsnet apps (#7534)
We persist the ServeConfig, even for tsnet apps. It's quite possible for
the ServeConfig to be out of step with the code. Example: If you run
`ListenFunnel` then later turn it off, the ServeConfig will still show
it enabled, the admin console will show it enabled, but the packet
handler will reject the packets.

Workaround by clearing the ServeConfig in `tsnet.Up`

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Maisem Ali 3ff44b2307 ipn: add Funnel port check from nodeAttr
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali ccdd534e81 tsnet: add ListenFunnel
This lets a tsnet binary share a server out over Tailscale Funnel.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Maisem Ali b797f773c7 ipn/ipnlocal: add support for funnel in tsnet
Previously the part that handled Funnel connections was not
aware of any listeners that tsnet.Servers might have had open
so it would check against the ServeConfig and fail.

Adding a ServeConfig for a TCP proxy was also not suitable in this
scenario as that would mean creating two different listeners and have
one forward to the other, which really meant that you could not have
funnel and tailnet-only listeners on the same port.

This also introduces the ipn.FunnelConn as a way for users to identify
whether the call is coming over funnel or not. Currently it only holds
the underlying conn and the target as presented in the "Tailscale-Ingress-Target"
header.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali b0cb39cda1 tsnet: only intercept TCP flows that have listeners
Previously, it would accept all TCP connections and then close the ones
it did not care about. Make it only ever accept the connections that it
cares about.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
David Crawshaw 9245d813c6 tsnet: explicit message for panic seen in CI
Updates #7488

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Denton Gentry b46c5ae82a cmd/sniproxy: draw the rest of the DNS owl.
Add a DNS server which always responds as its own IP addresses.

Additionally add a tsnet TailscaleIPs() function to return the
IP addresses, both IPv4 and IPv6.

Updates https://github.com/tailscale/tailscale/issues/1748

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
David Crawshaw 387b68fe11 tsnet: generalize loopback listener to include SOCKS5
Some languages do not give you any useful access to the sockets
underlying their networking packages. E.g. java.net.http.HttpClient
provides no official access to its dialing logic.

...but everyone supports proxies. So add a SOCKS5 proxy on the listener
we are already running.

(The function being revamped is very new,
I only added it in the last week and it wasn't part of any release,
so I believe it is fine to redo its function signature.)

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Brad Fitzpatrick 0f4359116e tsnet: add UDP support to Server.Listen
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>
2 years ago
Brad Fitzpatrick 9ff51ca17f wgengine/netstack: add support for custom UDP flow handlers
To be used by tsnet and sniproxy later.

Updates #5871
Updates #1748

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Crawshaw d41f6a8752 tsnet: do not error on NeedsMachineAuth for Up
It turns out even with an AuthKey that pre-approves devices on a tailnet
with machine auth turned on, we still temporarily see the
NeedsMachineAuth state. So remove that error (for now).

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw 768df4ff7a tsnet: add a LocalAPI listener on loopback, with basic auth
This is for use by LocalAPI clients written in other languages that
don't appear to be able to talk HTTP over a socket (e.g.
java.net.http.HttpClient).

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw 44e027abca tsnet: add data transfer test
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw daa2f1c66e tsnet: add Up method to block until ready
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
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 5bba65e978 net/memnet: rename from net/nettest
This is just #cleanup to resolve a TODO

Also add a package doc.

Signed-off-by: Maisem Ali <maisem@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
Claire Wang a45c9f982a wgengine/netstack: change netstack API to require LocalBackend
The macOS client was forgetting to call netstack.Impl.SetLocalBackend.
Change the API so that it can't be started without one, eliminating this
class of bug. Then update all the callers.

Updates #6764

Change-Id: I2b3a4f31fdfd9fdbbbbfe25a42db0c505373562f
Signed-off-by: Claire Wang <claire@tailscale.com>
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Jordan Whited ea5ee6f87c
all: update golang.zx2c4.com/wireguard to github.com/tailscale/wireguard-go (#6692)
This is temporary while we work to upstream performance work in
https://github.com/WireGuard/wireguard-go/pull/64. A replace directive
is less ideal as it breaks dependent code without duplication of the
directive.

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
Xe Iaso d1a5757639
tsnet: add HTTP client method to tsnet.Server (#6669)
This allows tsnet services to make requests to other services in the
tailnet with the tsnet service identity instead of the identity of the
host machine. This also enables tsnet services to make requests to other
tailnet services without having to have the host machine join the
tailnet.

Signed-off-by: Xe Iaso <xe@tailscale.com>

Signed-off-by: Xe Iaso <xe@tailscale.com>
2 years ago
Brad Fitzpatrick 1950e56478 tsnet: add Server.ControlURL option
As requested in #6250 from @majst01.

Change-Id: Ia4bc5c4ebc98cd67d07328a1a42b87574261ddde
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick cbc89830c4 tsnet: be stricter about arguments to Server.Listen
Fixes #6201

Change-Id: I14b2b8ce9bee838344a3fad4f305c78ab775f72e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 4d330bac14 ipn/ipnlocal: add support for multiple user profiles
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick 910db02652 client/tailscale, tsnet, ipn/ipnlocal: prove nodekey ownership over noise
Fixes #5972

Change-Id: Ic33a93d3613ac5dbf172d6a8a459ca06a7f9e547
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 630bcb5b67 tsnet,client/tailscale: add APIClient which runs API over Noise.
Updates tailscale/corp#4383

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 4102a687e3 tsnet: fix netstack leak on Close
Identified while investigating a goroutine leak in a different repo.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Mihai Parparita 8343b243e7 all: consistently initialize Logf when creating tsdial.Dialers
Most visible when using tsnet.Server, but could have resulted in dropped
messages in a few other places too.

Fixes #5743

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Eng Zer Jun f0347e841f refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Reference: https://golang.org/doc/go1.16#ioutil
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2 years ago
Will Norris 3344c3b89b tsnet: add Server method to listener
Allow callers to verify that a net.Listener is a tsnet.listener by type
asserting against this Server method, as well as providing access to the
underlying Server.

This is initially being added to support the caddy integration in
caddyserver/caddy#5002.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Joe Tsai b1fff4499f
tsnet: cleanup resources upon start failure (#5301)
In a partially initialized state, we should cleanup
all prior resources when an error occurs.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai ddebd30917
tsnet: fix closing of filch buffer (#5299)
It should be safe to initialize multiple Server instances
without any resource leaks what-so-ever.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Maisem Ali be5eadbecc tsnet: log out ephemeral nodes on Close()
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick a12aad6b47 all: convert more code to use net/netip directly
perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.)
    perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. )
    goimports -w .

Then delete some stuff from the net/netaddr shim package which is no
longer neeed.

Updates #5162

Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 7eaf5e509f net/netaddr: start migrating to net/netip via new netaddr adapter package
Updates #5162

Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 3ac8ab1791 tsnet: add Server.AuthKey field
... so callers can provide the AuthKey via mechanisms other than
environment variables which means multiple Servers can't be started
concurrently in the same process without coordination.

Change-Id: I7736ef4f59b7cc29637939e140e990613ce58e0d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Joe Tsai 0f05b2c13f
tsnet: use tailscaled as prefix for state file names (#4816)
Use the "tailscaled" prefix instead of "tsnet" for state file names:
1. It is consistent with the pre-existing {{Dir}}/tailscaled.state file.
2. It makes the file layout of `tsnet` and `tailscaled` identical,
   so that they are compatible with each other.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago