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Author	SHA1	Message	Date
Brad Fitzpatrick	eb2fa16fcc	tailcfg: bump capver for earlier cryptokey panic fix [capver 106] ... I should've bumped capver in 65fe0ba7b5 but forgot. This lets us turn off the cryptokey routing change from control for the affected panicky range of commits, based on capver. Updates #13332 Updates tailscale/corp#20732 Change-Id: I32c17cfcb45b2369b2b560032330551d47a0ce0b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	20cf48b8dd	gokrazy{,/natlabapp.arm64}: start adding arm64 appliance support ... Both for Raspberry Pis, and for running natlab tests faster on Apple Silicon Macs without emulating x86. Not fully wired up yet. Updates #1866 Updates #13038 Change-Id: I1552bf107069308f325f640773cc881ed735b5ab Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	65fe0ba7b5	wgengine/magicsock: fix panic regression from cryptokey routing change ... Fixes #13332 Updates tailscale/corp#20732 Change-Id: I30f12746844bf77f5a664bf8e8d8ebf2511a2b27 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Nick Khyl	2f2aeaeaeb	ipn/ipnlocal: fix a nil pointer dereference when serving /localapi/v0/tka/status ... Fixes #13330 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Brad Fitzpatrick	3d9e3a17fa	tstest/natlab/vnet: move some boilerplate to mkPacket helper ... No need to make callers specify the redundant IP version or TTL/HopLimit or EthernetType in the common case. The mkPacket helper can set those when unset. And use the mkIPLayer in another place, simplifying some code. And rename mkPacketErr to just mkPacket, then move mkPacket to test-only code, as mustPacket. Updates #13038 Change-Id: Ic216e44dda760c69ab9bfc509370040874a47d30 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	7e88d6712e	tstest/natlab/vnet: add syslog tests ... Updates #13038 Change-Id: I4ac96cb0a9e46a2fb1e09ddedd3614eb006c2c8c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	b1a5b40318	tstest/natlab/vnet: add DHCP tests, ignore DHCPv4 on v6-only networks ... And clean up some of the test helpers in the process. Updates #13038 Change-Id: I3e2b5f7028a32d97af7f91941e59399a8e222b25 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	ffa1c93f59	tstest/natlab/vnet: use mkPacketErr in more places ... I'd added this helper for tests, but then moved it to non-test code and forgot some places to use it. This uses it in more places to remove some boilerplate. Updates #13038 Change-Id: Ic4dc339be1c47a55b71d806bab421097ee3d75ed Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Anton Tolchanov	109d0891e1	posture: stop logging serial numbers ... Logging serial numbers every time they are read might have been useful early on, but seems unnecessary now. Updates #5902 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 months ago
Nick Khyl	959285e0c5	ipn/ipnlocal: fix race condition that results in a panic sending on a closed channel ... Fixes #13288 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Percy Wegmann	35423fcf69	drive/driveimpl: use su instead of sudo ... This allows Taildrive to work on systems like Busybox that don't have sudo. Fixes #12282 Signed-off-by: Percy Wegmann <percy@tailscale.com>	2 months ago
Jordan Whited	45c97751fb	net/tstun: clarify GROFilterFunc *gro.GRO usage (#13318) ... Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Percy Wegmann	ecc451501c	ssh/tailssh: add ability to force V2 behavior using new feature flag ... Introduces ssh-behavior-v2 node attribute to override ssh-behavior-v1. Updates #11854 Signed-off-by: Percy Wegmann <percy@tailscale.com>	2 months ago
Andrea Gottardo	a584d04f8a	dns: increase TimeToVisible before DNS unavailable warning (#13317) ... Updates tailscale/tailscale#13314 Some users are reporting 'DNS unavailable' spurious (?) warnings, especially on Android: https://old.reddit.com/r/Tailscale/comments/1f2ow3w/health_warning_dns_unavailable_on_tailscale/ https://old.reddit.com/r/Tailscale/comments/1f3l2il/health_warnings_dns_unavailable_what_does_it_mean/ I suspect this is caused by having a too low TimeToVisible setting on the Warnable, which triggers the unhealthy state during slow network transitions. Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	2 months ago
Jordan Whited	0926954cf5	net/tstun,wgengine/netstack: implement TCP GRO for local services (#13315) ... Throughput improves substantially when measured via netstack loopback (TS_DEBUG_NETSTACK_LOOPBACK_PORT). Before (d21ebc2): jwhited@i5-12400-2:~$ iperf3 -V -c 100.100.100.100 Starting Test: protocol: TCP, 1 streams, 131072 byte blocks Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 5.77 GBytes 4.95 Gbits/sec 0 sender [ 5] 0.00-10.01 sec 5.77 GBytes 4.95 Gbits/sec receiver After: jwhited@i5-12400-2:~$ iperf3 -V -c 100.100.100.100 Starting Test: protocol: TCP, 1 streams, 131072 byte blocks Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 12.7 GBytes 10.9 Gbits/sec 0 sender [ 5] 0.00-10.00 sec 12.7 GBytes 10.9 Gbits/sec receiver Updates tailscale/corp#22754 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Jordan Whited	71acf87830	tstest/integration: add UDP netstack loopback integration test (#13312) ... Updates tailscale/corp#22713 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Kristoffer Dalby	e93c160a39	nix: update nix and use go 1.23 ... Updates #12912 Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2 months ago
Nick Khyl	b48c8db69c	ipn/ipnlocal: set WantRunning upon an interactive login, but not during a seamless renewal or a profile switch ... The LocalBackend's state machine starts in NoState and soon transitions to NeedsLogin if there's no auto-start profile, with the profileManager starting with a new empty profile. Notably, entering the NeedsLogin state blocks engine updates. We expect the user to transition out of this state by logging in interactively, and we set WantRunning to true when controlclient enters the StateAuthenticated state. While our intention is correct, and completing an interactive login should set WantRunning to true, our assumption that logging into the current Tailscale profile is the only way to transition out of the NeedsLogin state is not accurate. Another common transition path includes an explicit profile switch (via LocalBackend.SwitchProfile) or an implicit switch when a Windows user connects to the backend. This results in a bug where WantRunning is set to true even when it was previously set to false, and the user expressed no intention of changing it. A similar issue occurs when switching from (sic) a Tailnet that has seamlessRenewalEnabled, regardless of the current state of the LocalBackend's state machine, and also results in unexpectedly set WantRunning. While this behavior is generally undesired, it is also incorrect that it depends on the control knobs of the Tailnet we're switching from rather than the Tailnet we're switching to. However, this issue needs to be addressed separately. This PR updates LocalBackend.SetControlClientStatus to only set WantRunning to true in response to an interactive login as indicated by a non-empty authURL. Fixes #6668 Fixes #11280 Updates #12756 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Brad Fitzpatrick	82c2c5c597	tstest/natlab/vnet: add more tests ... This adds tests for DNS requests, and ignoring IPv6 packets on v4-only networks. No behavior changes. But some things are pulled out into functions. And the mkPacket helpers previously just for tests are moved into non-test code to be used elsewhere to reduce duplication, doing the checksum stuff automatically. Updates #13038 Change-Id: I4dd0b73c75b2b9567b4be3f05a2792999d83f6a3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Jordan Whited	d21ebc28af	wgengine/netstack: implement netstack loopback (#13301) ... When the TS_DEBUG_NETSTACK_LOOPBACK_PORT environment variable is set, netstack will loop back (dnat to addressFamilyLoopback:loopbackPort) TCP & UDP flows originally destined to localServicesIP:loopbackPort. localServicesIP is quad-100 or the IPv6 equivalent. Updates tailscale/corp#22713 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Nick Khyl	80b2b45d60	ipn/ipnlocal: refactor and cleanup profileManager ... In preparation for multi-user and unattended mode improvements, we are refactoring and cleaning up `ipn/ipnlocal.profileManager`. The concept of the "current user", which is only relevant on Windows, is being deprecated and will soon be removed to allow more than one Windows user to connect and utilize `LocalBackend` according to that user's access rights to the device and specific Tailscale profiles. We plan to pass the user's identity down to the `profileManager`, where it can be used to determine the user's access rights to a given `LoginProfile`. While the new permission model in `ipnauth` requires more work and is currently blocked pending PR reviews, we are updating the `profileManager` to reduce its reliance on the concept of a single OS user being connected to the backend at the same time. We extract the switching to the default Tailscale profile, which may also trigger legacy profile migration, from `profileManager.SetCurrentUserID`. This introduces `profileManager.DefaultUserProfileID`, which returns the default profile ID for the current user, and `profileManager.SwitchToDefaultProfile`, which is essentially a shorthand for `pm.SwitchProfile(pm.DefaultUserProfileID())`. Both methods will eventually be updated to accept the user's identity and utilize that user's default profile. We make access checks more explicit by introducing the `profileManager.checkProfileAccess` method. The current implementation continues to use `profileManager.currentUserID` and `LoginProfile.LocalUserID` to determine whether access to a given profile should be granted. This will be updated to utilize the `ipnauth` package and the new permissions model once it's ready. We also expand access checks to be used more widely in the `profileManager`, not just when switching or listing profiles. This includes access checks in methods like `SetPrefs` and, most notably, `DeleteProfile` and `DeleteAllProfiles`, preventing unprivileged Windows users from deleting Tailscale profiles owned by other users on the same device, including profiles owned by local admins. We extract `profileManager.ProfilePrefs` and `profileManager.SetProfilePrefs` methods that can be used to get and set preferences of a given `LoginProfile` if `profileManager.checkProfileAccess` permits access to it. We also update `profileManager.setUnattendedModeAsConfigured` to always enable unattended mode on Windows if `Prefs.ForceDaemon` is true in the current `LoginProfile`, even if `profileManager.currentUserID` is `""`. This facilitates enabling unattended mode via `tailscale up --unattended` even if `tailscale-ipn.exe` is not running, such as when a Group Policy or MDM-deployed script runs at boot time, or when Tailscale is used on a Server Code or otherwise headless Windows environments. See #12239, #2137, #3186 and https://github.com/tailscale/tailscale/pull/6255#issuecomment-2016623838 for details. Fixes #12239 Updates tailscale/corp#18342 Updates #3186 Updates #2137 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Brad Fitzpatrick	73b3c8fc8c	tstest/natlab/vnet: add IPv6 all-nodes support ... This adds support for sending packets to 33:33:00:00:01 at IPv6 multicast address ff02::1 to send to all nodes. Nothing in Tailscale depends on this (yet?), but it makes debugging in VMs behind natlab easier (e.g. you can ping all nodes), and other things might depend on this in the future. Mostly I'm trying to flesh out the IPv6 support in natlab now that we can write vnet tests. Updates #13038 Change-Id: If590031fcf075690ca35c7b230a38c3e72e621eb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Nick Khyl	961ee321e8	ipn/{ipnauth,ipnlocal,ipnserver,localapi}: start baby step toward moving access checks from the localapi.Handler to the LocalBackend ... Currently, we use PermitRead/PermitWrite/PermitCert permission flags to determine which operations are allowed for a LocalAPI client. These checks are performed when localapi.Handler handles a request. Additionally, certain operations (e.g., changing the serve config) requires the connected user to be a local admin. This approach is inherently racey and is subject to TOCTOU issues. We consider it to be more critical on Windows environments, which are inherently multi-user, and therefore we prevent more than one OS user from connecting and utilizing the LocalBackend at the same time. However, the same type of issues is also applicable to other platforms when switching between profiles that have different OperatorUser values in ipn.Prefs. We'd like to allow more than one Windows user to connect, but limit what they can see and do based on their access rights on the device (e.g., an local admin or not) and to the currently active LoginProfile (e.g., owner/operator or not), while preventing TOCTOU issues on Windows and other platforms. Therefore, we'd like to pass an actor from the LocalAPI to the LocalBackend to represent the user performing the operation. The LocalBackend, or the profileManager down the line, will then check the actor's access rights to perform a given operation on the device and against the current (and/or the target) profile. This PR does not change the current permission model in any way, but it introduces the concept of an actor and includes some preparatory work to pass it around. Temporarily, the ipnauth.Actor interface has methods like IsLocalSystem and IsLocalAdmin, which are only relevant to the current permission model. It also lacks methods that will actually be used in the new model. We'll be adding these gradually in the next PRs and removing the deprecated methods and the Permit* flags at the end of the transition. Updates tailscale/corp#18342 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Brad Fitzpatrick	8b23ba7d05	tstest/natlab/vnet: add qemu + Virtualization.framework protocol tests ... To test how virtual machines connect to the natlab vnet code. Updates #13038 Change-Id: Ia4fd4b0c1803580ee7d94cc9878d777ad4f24f82 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	ff1d0aa027	tstest/natlab/vnet: start adding tests ... And refactor some of vnet.go for testability. The only behavioral change (with a new test) is that ethernet broadcasts no longer get sent back to the sender. Updates #13038 Change-Id: Ic2e7e7d6d8805b7b7f2b5c52c2c5ba97101cef14 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Jordan Whited	31cdbd68b1	net/tstun: fix gvisor inbound GSO packet injection (#13283) ... buffs[0] was not sized to hold pkt with GSO, resulting in a panic. Updates tailscale/corp#22511 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Kristoffer Dalby	a2c42d3cd4	usermetric: add initial user-facing metrics ... This commit adds a new usermetric package and wires up metrics across the tailscale client. Updates tailscale/corp#22075 Co-authored-by: Anton Tolchanov <anton@tailscale.com> Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2 months ago
Kristoffer Dalby	06c31f4e91	tsweb/varz: remove pprof ... Updates tailscale/corp#22075 Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2 months ago
Jordan Whited	bfcb3562e6	wgengine/netstack: re-enable gVisor GSO on Linux (#13269) ... This was previously disabled in 8e42510 due to missing GSO-awareness in tstun, which was resolved in d097096. Updates tailscale/corp#22511 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Jordan Whited	d097096ddc	net/tstun,wgengine/netstack: make inbound synthetic packet injection GSO-aware (#13266) ... Updates tailscale/corp#22511 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Jordan Whited	6d4973e1e0	wgengine/netstack: use types/logger.Logf instead of stdlib log.Printf (#13267) ... Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Brad Fitzpatrick	f99f970dc1	tstest/natlab/vnet: rename some things for clarity ... The bad naming (which had only been half updated with the IPv6 changes) tripped me up in the earlier change. Updates #13038 Change-Id: I65ce07c167e8219d35b87e1f4bf61aab4cac31ff Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	0157000cab	tstest/natlab: fix IPv6 tests, remove TODOs ... The reason they weren't working was because the cmd/tta agent in the guest was dialing out to the test and the vnet couldn't map its global unicast IPv6 address to a node as it was just using a map[netip.Addr]*node and blindly trusting the *node was populated. Instead, it was nil, so the agent connection fetching didn't work for its RoundTripper and the test could never drive the node. That map worked for IPv4 but for IPv6 we need to use the method that takes into account the node's IPv6 SLAAC address. Most call sites had been converted but I'd missed that one. Also clean up some debug, and prohibit nodes' link-local unicast addresses from dialing 2000::/3 directly for now. We can allow that to be configured opt-in later (some sort of IPv6 NAT mode. Whatever it's called.) That mode was working on accident, but was confusing: Linux would do source address selection from link local for the first few seconds and then after SLAAC and DAD, switch to using the global unicast source address. Be consistent for now and force it to use the global unicast. Updates #13038 Change-Id: I85e973aaa38b43c14611943ff45c7c825ee9200a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	9f7683e2a1	logpolicy: extend the gokrazy/natlab wait-for-network delay for IPv6 ... Really we need to fix logpolicy + bootstrapDNS to not be so aggressive, but this is a quick workaround meanwhile. Without this, tailscaled starts immediately while IPv6 DAD is happening for a couple seconds and logpolicy freaks out without the network available and starts spamming stderr about bootstrap DNS options. But we see that regularly anyway from people whose wifi is down. So we need to fix the general case. This is not that fix. Updates #13038 Change-Id: Iba7e536d08e59d34abded1d279f88fdc9c46d94d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	2636a83d0e	cmd/tta: pull out test driver dialing into a type, fix bugs ... There were a few places it could get wedged (notably the dial without a timeout). And add a knob for verbose debug logs. And keep two idle connections always. Updates #13038 Change-Id: I952ad182d7111481d97a83c12aa2ff4bfdc55fe8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	6dd1af0d1e	tstest/natlab: refactor HandleEthernetPacketForRouter a bit ... Move all the UDP handling to its own func to remove a bunch of "if isUDP" checks in a bunch of blocks. Updates #13038 Change-Id: If71d71b49e57651d15bd307a2233c43751cc8639 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	3a8cfbc381	tstest/natlab: be more paranoid about IP versions from gvisor ... I didn't actually see this, but added this while debugging something and figured it'd be good to keep. Updates #13038 Change-Id: I67934c8a329e0233f79c3b08516fd6bad6bfe22a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Brad Fitzpatrick	e0bdd5d058	tstest/natlab: simplify a defer ... Updates #13038 Change-Id: I4d38701491523c64c81767b0838010609e683a9f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Will Norris	cccacff564	types/opt: add BoolFlag for setting Bool value as a flag ... Updates tailscale/corp#22578 Signed-off-by: Will Norris <will@tailscale.com>	2 months ago
James Tucker	8af50fa97c	ipn/ipnlocal: update routes on link change with ExitNodeAllowLANAccess ... On a major link change the LAN routes may change, so on linkChange where ChangeDelta.Major, we need to call authReconfig to ensure that new routes are observed and applied. Updates tailscale/corp#22574 Signed-off-by: James Tucker <james@tailscale.com>	2 months ago
Brad Fitzpatrick	b78df4d48a	tstest/natlab/vnet: add start of IPv6 support ... Updates #13038 Change-Id: Ic3d095f167daf6c7129463e881b18f2e0d5693f5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Maisem Ali	31b5239a2f	tstest/natlab/vnet: flush and sync pcap file after every packet ... So that we can view the pcap as we debug interactively. Updates #13038 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 months ago
Jordan Whited	978306565d	tstest/integration: change log.Fatal() to t.Fatal() (#13253) ... Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Jordan Whited	367bfa607c	tstest/integration: exercise TCP DNS queries against quad-100 (#13231) ... Updates tailscale/corp#22511 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Jordan Whited	641693d61c	ipn/ipnlocal: install IPv6 service addr route (#13252) ... This is the equivalent of quad-100, but for IPv6. This is technically already contained in the Tailscale IPv6 ULA prefix, but that is only installed when remote peers are visible via control with contained addrs. The service addr should always be reachable. Updates #1152 Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Brad Fitzpatrick	475ab1fb67	cmd/vnet: omit log spam when backend status hasn't changed ... Updates #13038 Change-Id: I9cc67cf18ba44ff66ba03cda486d5e111e395ce7	2 months ago
Brad Fitzpatrick	e5fd36ad78	tstest/natlab: respect NATTable interface's invalid-means-drop everywhere ... And sprinkle some more docs around. Updates #13038 Change-Id: Ia2dcf567b68170481cc2094d64b085c6b94a778a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Nick Khyl	03acab2639	cmd/cloner, cmd/viewer, util/codegen: add support for aliases of cloneable types ... We have several checked type assertions to *types.Named in both cmd/cloner and cmd/viewer. As Go 1.23 updates the go/types package to produce Alias type nodes for type aliases, these type assertions no longer work as expected unless the new behavior is disabled with gotypesalias=0. In this PR, we add codegen.NamedTypeOf(t types.Type), which functions like t.(*types.Named) but also unrolls type aliases. We then use it in place of type assertions in the cmd/cloner and cmd/viewer packages where appropriate. We also update type switches to include *types.Alias alongside *types.Named in relevant cases, remove *types.Struct cases when switching on types.Type.Underlying and update the tests with more cases where type aliases can be used. Updates #13224 Updates #12912 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Nick Khyl	a9dc6e07ad	util/codegen, cmd/cloner, cmd/viewer: update codegen.LookupMethod to support alias type nodes ... Go 1.23 updates the go/types package to produce Alias type nodes for type aliases, unless disabled with gotypesalias=0. This new default behavior breaks codegen.LookupMethod, which uses checked type assertions to types.Named and types.Interface, as only named types and interfaces have methods. In this PR, we update codegen.LookupMethod to perform method lookup on the right-hand side of the alias declaration and clearly switch on the supported type nodes types. We also improve support for various edge cases, such as when an alias is used as a type parameter constraint, and add tests for the LookupMethod function. Additionally, we update cmd/viewer/tests to include types with aliases used in type fields and generic type constraints. Updates #13224 Updates #12912 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2 months ago
Brad Fitzpatrick	aa42ae9058	tstest/natlab: make a new virtualIP type in prep for IPv6 support ... All the magic service names with virtual IPs will need IPv6 variants. Pull this out in prep. Updates #13038 Change-Id: I53b5eebd0679f9fa43dc0674805049258c83a0de Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago