tailscale

Commit Graph

Author	SHA1	Message	Date
James Tucker	80206b5323	wgengine/magicsock: add nodeid to panic condition on public key reuse If the condition arises, it should be easy to track down. Updates #9547 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Val	c608660d12	wgengine,net,ipn,disco: split up and define different types of MTU Prepare for path MTU discovery by splitting up the concept of DefaultMTU() into the concepts of the Tailscale TUN MTU, MTUs of underlying network interfaces, minimum "safe" TUN MTU, user configured TUN MTU, probed path MTU to a peer, and maximum probed MTU. Add a set of likely MTUs to probe. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	578b357849	wgengine/netstack: use buffer pools for UDP packet forwarding Use buffer pools for UDP packet forwarding to prepare for increasing the forwarded UDP packet size for peer path MTU discovery. Updates #311 Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Andrew Dunham	530aaa52f1	net/dns: retry forwarder requests over TCP We weren't correctly retrying truncated requests to an upstream DNS server with TCP. Instead, we'd return a truncated request to the user, even if the user was querying us over TCP and thus able to handle a large response. Also, add an envknob and controlknob to allow users/us to disable this behaviour if it turns out to be buggy (✨ DNS ✨). Updates #9264 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: Ifb04b563839a9614c0ba03e9c564e8924c1a2bfd	1 year ago
Brad Fitzpatrick	3b32d6c679	wgengine/magicsock, controlclient, net/dns: reduce some logspam Updates #cleanup Change-Id: I78b0697a01e94baa33f3de474b591e616fa5e6af Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Val	08302c0731	Revert "wgengine/netstack: use buffer pools for UDP packet forwarding" This reverts commit `fb2f3e4741`. Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	6cc5b272d8	Revert "wgengine,net,ipn,disco: split up and define different types of MTU" This reverts commit `059051c58a`. Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	059051c58a	wgengine,net,ipn,disco: split up and define different types of MTU Prepare for path MTU discovery by splitting up the concept of DefaultMTU() into the concepts of the Tailscale TUN MTU, MTUs of underlying network interfaces, minimum "safe" TUN MTU, user configured TUN MTU, probed path MTU to a peer, and maximum probed MTU. Add a set of likely MTUs to probe. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	fb2f3e4741	wgengine/netstack: use buffer pools for UDP packet forwarding Use buffer pools for UDP packet forwarding to prepare for increasing the forwarded UDP packet size for peer path MTU discovery. Updates #311 Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	65dc711c76	control,tailcfg,wgengine/magicsock: add nodeAttr to enable/disable peer MTU Add a nodeAttr to enable/disable peer path MTU discovery. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	95635857dc	wgengine/magicsock: replace CanPMTUD() with ShouldPMTUD() Replace CanPMTUD() with ShouldPMTUD() to check if peer path MTU discovery should be enabled, in preparation for adding support for enabling/disabling peer MTU dynamically. Updated #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	a5ae21a832	wgengine/magicsock: improve don't fragment bit set/get support Add an enable/disable argument to setDontFragment() in preparation for dynamic enable/disable of peer path MTU discovery. Add getDontFragment() to get the status of the don't fragment bit from a socket. Updates #311 Co-authored-by: James Tucker <james@tailscale.com> Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	4c793014af	wgengine/magicsock: fix don't fragment setsockopt arg for IPv6 on linux Use IPV6_MTU_DISCOVER for setting don't fragment on IPv6 sockets on Linux (was using IP_MTU_DISCOVER, the IPv4 arg). Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	055f3fd843	wgengine/magicsock: rename debugPMTUD() to debugEnablePMTUD() Make the debugknob variable name for enabling peer path MTU discovery match the env variable name. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Val	bb3d338334	wgengine/magicsock: rename files for peer MTU Rename dontfrag* to peermtu* to prepare for more peer MTU related code going into these files. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Tom DNetto	c08cf2a9c6	all: declare & plumb IPv6 masquerade address for peer This PR plumbs through awareness of an IPv6 SNAT/masquerade address from the wire protocol through to the low-level (tstun / wgengine). This PR is the first in two PRs for implementing IPv6 NAT support to/from peers. A subsequent PR will implement the data-plane changes to implement IPv6 NAT - this is just plumbing. Signed-off-by: Tom DNetto <tom@tailscale.com> Updates ENG-991	1 year ago
Maisem Ali	4da0689c2c	tailcfg: add Node.HasCap helpers This makes a follow up change less noisy. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	d06b48dd0a	tailcfg: add RawMessage This adds a new RawMessage type backed by string instead of the json.RawMessage which is backed by []byte. The byte slice makes the generated views be a lot more defensive than the need to be which we can get around by using a string instead. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Brad Fitzpatrick	0d991249e1	types/netmap: remove NetworkMap.{Addresses,MachineStatus} And convert all callers over to the methods that check SelfNode. Now we don't have multiple ways to express things in tests (setting fields on SelfNode vs NetworkMap, sometimes inconsistently) and don't have multiple ways to check those two fields (often only checking one or the other). Updates #9443 Change-Id: I2d7ba1cf6556142d219fae2be6f484f528756e3c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Maisem Ali	a61caea911	tailcfg: define a type for NodeCapability Instead of untyped string, add a type to identify these. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Brad Fitzpatrick	3d37328af6	wgengine, proxymap: split out port mapping from Engine to new type (Continuing quest to remove rando stuff from the "Engine") Updates #cleanup Change-Id: I77f39902c2194410c10c054b545d70c9744250b0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	926c990a09	types/netmap: start phasing out Addresses, add GetAddresses method NetworkMap.Addresses is redundant with the SelfNode.Addresses. This works towards a TODO to delete NetworkMap.Addresses and replace it with a method. This is similar to #9389. Updates #cleanup Change-Id: Id000509ca5d16bb636401763d41bdb5f38513ba0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
James Tucker	1858ad65c8	cmd/cloner: do not allocate slices when the source is nil tailcfg.Node zero-value clone equality checks failed when I added a []*foo to the structure, as the zero value and it's clone contained a different slice header. Updates #9377 Updates #9408 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Brad Fitzpatrick	99bb355791	wgengine: remove DiscoKey method from Engine interface It has one user (LocalBackend) which can ask magicsock itself. Updates #cleanup Change-Id: I8c03cbb1e5ba57b0b442621b5fa467030c14a2e2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	3c276d7de2	wgengine: remove SetDERPMap method from Engine interface (continuing the mission of removing rando methods from the Engine interface that we don't need anymore) Updates #cleanup Change-Id: Id5190917596bf04d7185c3b331a852724a3f5a16 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	b8a4c96c53	wgengine: remove LinkChange method from Engine interface It was only used by Android, until https://github.com/tailscale/tailscale-android/pull/131 which does the call to the netMon directly instead. Updates #cleanup Change-Id: Iab8a1d8f1e63250705835c75f40e2cd8c1c4d5b8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	727b1432a8	wgengine: remove SetNetInfoCallback method from Engine LocalBackend can talk to magicsock on its own to do this without the "Engine" being involved. (Continuing a little side quest of cleaning up the Engine interface...) Updates #cleanup Change-Id: I8654acdca2b883b1bd557fdc0cfb90cd3a418a62 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	343c0f1031	wgengine{,/netstack}: remove AddNetworkMapCallback from Engine interface It had exactly one user: netstack. Just have LocalBackend notify netstack when here's a new netmap instead, simplifying the bloated Engine interface that has grown a bunch of non-Engine-y things. (plenty of rando stuff remains after this, but it's a start) Updates #cleanup Change-Id: I45e10ab48119e962fc4967a95167656e35b141d8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	3af051ea27	control/controlclient, types/netmap: start plumbing delta netmap updates Currently only the top four most popular changes: endpoints, DERP home, online, and LastSeen. Updates #1909 Change-Id: I03152da176b2b95232b56acabfb55dcdfaa16b79 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	ff6fadddb6	wgengine/magicsock: stop retaining *netmap.NetworkMap We're trying to start using that monster type less and eventually get rid of it. Updates #1909 Change-Id: I8e1e725bce5324fb820a9be6c7952767863e6542 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	f06e64c562	wgengine: use set.HandleSet in another place I guess we missed this one earlier when we unified the various copies into set.HandleSet. Updates #cleanup Change-Id: I7e6de9ce16e8fc4846abf384dfcc8eaec4d99e60 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	42072683d6	control/controlknobs: move ForceBackgroundSTUN to controlknobs.Knobs This is both more efficient (because the knobs' bool is only updated whenever Node is changed, rarely) and also gets us one step closer to removing a case of storing a netmap.NetworkMap in magicsock. (eventually we want to phase out much of the use of that type internally) Updates #1909 Change-Id: I37e81789f94133175064fdc09984e4f3a431f1a1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	4e91cf20a8	control/controlknobs, all: add plumbed Knobs type, not global variables Previously two tsnet nodes in the same process couldn't have disjoint sets of controlknob settings from control as both would overwrite each other's global variables. This plumbs a new controlknobs.Knobs type around everywhere and hangs the knobs sent by control on that instead. Updates #9351 Change-Id: I75338646d36813ed971b4ffad6f9a8b41ec91560 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	d050700a3b	wgengine/magicsock: make peerMap also keyed by NodeID In prep for incremental netmap update plumbing (#1909), make peerMap also keyed by NodeID, as all the netmap node mutations passed around later will be keyed by NodeID. In the process, also: * add envknob.InDevMode, as a signal that we can panic more aggressively in unexpected cases. * pull two moderately large blocks of code in Conn.SetNetworkMap out into their own methods * convert a few more sets from maps to set.Set Updates #1909 Change-Id: I7acdd64452ba58e9d554140ee7a8760f9043f961 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	dc7aa98b76	all: use set.Set consistently instead of map[T]struct{} I didn't clean up the more idiomatic map[T]bool with true values, at least yet. I just converted the relatively awkward struct{}-valued maps. Updates #cleanup Change-Id: I758abebd2bb1f64bc7a9d0f25c32298f4679c14f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Craig Rodrigues	8683ce78c2	client/web, clientupdate, util/linuxfw, wgengine/magicsock: Use %v verb for errors Replace %w verb with %v verb when logging errors. Use %w only for wrapping errors with fmt.Errorf() Fixes: #9213 Signed-off-by: Craig Rodrigues <rodrigc@crodrigues.org>	1 year ago
Brad Fitzpatrick	98a5116434	all: adjust some build tags for plan9 I'm not saying it works, but it compiles. Updates #5794 Change-Id: I2f3c99732e67fe57a05edb25b758d083417f083e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	ea4425d8a9	ipn/ipnlocal, wgengine/magicsock: move UpdateStatus stuff around Upcoming work on incremental netmap change handling will require some replumbing of which subsystems get notified about what. Done naively, it could break "tailscale status --json" visibility later. To make sure I understood the flow of all the updates I was rereading the status code and realized parts of ipnstate.Status were being populated by the wrong subsystems. The engine (wireguard) and magicsock (data plane, NAT traveral) should only populate the stuff that they uniquely know. The WireGuard bits were fine but magicsock was populating stuff stuff that LocalBackend could've better handled, so move it there. Updates #1909 Change-Id: I6d1b95d19a2d1b70fbb3c875fac8ea1e169e8cb0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	9089efea06	net/netmon: make ChangeFunc's signature take new ChangeDelta, not bool Updates #9040 Change-Id: Ia43752064a1a6ecefc8802b58d6eaa0b71cf1f84 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
James Tucker	e1c7e9b736	wgengine/magicsock: improve endpoint selection for WireGuard peers with rx time If we don't have the ICMP hint available, such as on Android, we can use the signal of rx traffic to bias toward a particular endpoint. We don't want to stick to a particular endpoint for a very long time without any signals, so the sticky time is reduced to 1 second, which is large enough to avoid excessive packet reordering in the common case, but should be small enough that either rx provides a strong signal, or we rotate in a user-interactive schedule to another endpoint, improving the feel of failover to other endpoints. Updates #8999 Co-authored-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com> Signed-off-by: James Tucker <james@tailscale.com> Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	1 year ago
James Tucker	5edb39d032	wgengine/magicsock: clear out endpoint statistics when it becomes bad There are cases where we do not detect the non-viability of a route, but we will instead observe a failure to send. In a Disco path this would normally be handled as a side effect of Disco, which is not available to non-Disco WireGuard nodes. In both cases, recognizing the failure as such will result in faster convergence. Updates #8999 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Charlotte Brandhorst-Satzkorn	7c9c68feed	wgengine/magicsock: update lastfullping comment to include wg only LastFullPing is now used for disco or wireguard only endpoints. This change updates the comment to make that clear. Updates #7826 Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	1 year ago
James Tucker	3a652d7761	wgengine/magicsock: clear endpoint state in noteConnectivityChange There are latency values stored in bestAddr and endpointState that are no longer applicable after a connectivity change and should be cleared out, following the documented behavior of the function. Updates #8999 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Brad Fitzpatrick	947def7688	types/netmap: remove redundant Netmap.Hostinfo It was in SelfNode.Hostinfo anyway. The redundant copy was just costing us an allocation per netmap (a Hostinfo.Clone). Updates #1909 Change-Id: Ifac568aa5f8054d9419828489442a0f4559bc099 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	84b94b3146	types/netmap, all: make NetworkMap.SelfNode a tailcfg.NodeView Updates #1909 Change-Id: I8c470cbc147129a652c1d58eac9b790691b87606 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Val	c15997511d	wgengine/magicsock: only accept pong sent by CLI ping When sending a ping from the CLI, only accept a pong that is in reply to the specific CLI ping we sent. Updates #311 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Maisem Ali	8a5ec72c85	cmd/cloner: use maps.Clone and ptr.To Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Brad Fitzpatrick	58a4fd43d8	types/netmap, all: use read-only tailcfg.NodeView in NetworkMap Updates #8948 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
KevinLiang10	93cab56277	wgengine/router: fall back and set iptables as default again Due to the conflict between our nftables implementation and ufw, which is a common utility used on linux. We now want to take a step back to prevent regression. This will give us more chance to let users to test our nftables support and heuristic. Updates: #391 Signed-off-by: KevinLiang10 <kevinliang@tailscale.com>	1 year ago
Brad Fitzpatrick	af2e4909b6	all: remove some Debug fields, NetworkMap.Debug, Reconfig Debug arg Updates #8923 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago

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1393 Commits (80206b5323db0f9d966ec6e13fd3154a2c70e3e6)