tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	742b8b44a8	net/tsaddr: new package to hold Tailscale-specific IPs/ranges And update existing callers with (near) duplicated cases.	4 years ago
Brad Fitzpatrick	5c6d8e3053	netcheck, tailcfg, interfaces, magicsock: survey UPnP, NAT-PMP, PCP Don't do anything with UPnP, NAT-PMP, PCP yet, but see how common they are in the wild. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6196b7e658	wgengine/magicsock: change API to not permit disco key changes Generate the disco key ourselves and give out the public half instead. Fixes #525	4 years ago
Brad Fitzpatrick	5132edacf7	wgengine/magicsock: fix data race from undocumented wireguard-go requirement Endpoints need to be Stringers apparently. Fixes tailscale/corp#422	4 years ago
Brad Fitzpatrick	630379a1d0	cmd/tailscale: add tailscale status region name, last write, consistently star There's a lot of confusion around what tailscale status shows, so make it better: show region names, last write time, and put stars around DERP too if active. Now stars are always present if activity, and always somewhere.	4 years ago
Brad Fitzpatrick	9a8700b02a	wgengine/magicsock: add discoEndpoint heartbeat Updates #483	4 years ago
Brad Fitzpatrick	9f930ef2bf	wgengine/magicsock: remove the discoEndpoint.timers map It ended up being more complicated than it was worth.	4 years ago
Brad Fitzpatrick	f5f3885b5b	wgengine/magicsock: bunch of misc discovery path cleanups * fix tailscale status for peers using discovery * as part of that, pull out disco address selection into reusable and testable discoEndpoint.addrForSendLocked * truncate ping/pong logged hex txids in half to eliminate noise * move a bunch of random time constants into named constants with docs * track a history of per-endpoint pong replies for future use & status display * add "send" and " got" prefix to discovery message logging immediately before the frame type so it's easier to read than searching for the "<-" or "->" arrows earlier in the line; but keep those as the more reasily machine readable part for later. Updates #483	4 years ago
Dmytro Shynkevych	e9643ae724	wgengine: prevent log after exit in watchdog test Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	16b2bbbbbb	wgengine: close in reverse order of bringup Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	6c70cf7222	wgengine/magicsock: stop ping timeout timer on pong receipt, misc log cleanup Updates #483	4 years ago
Brad Fitzpatrick	c52905abaa	wgengine/magicsock: log less on no-op disco route switches Also, renew trustBestAddrUntil even if latency isn't better.	4 years ago
Brad Fitzpatrick	0f0ed3dca0	wgengine/magicsock: clean up discovery logging Updates #483	4 years ago
Brad Fitzpatrick	056fbee4ef	wgengine/magicsock: add TS_DEBUG_OMIT_LOCAL_ADDRS knob to force STUN use only For debugging.	4 years ago
Brad Fitzpatrick	e03cc2ef57	wgengine/magicsock: populate discoOfAddr upon receiving ping frames Updates #483	4 years ago
Brad Fitzpatrick	275a20f817	wgengine/magicsock: keep discoOfAddr populated, use it for findEndpoint Update the mapping from ip:port to discokey, so when we retrieve a packet from the network, we can find the same conn.Endpoint that we gave to wireguard-go previously, without making it think we've roamed. (We did, but we're not using its roaming.) Updates #483	4 years ago
Brad Fitzpatrick	77e89c4a72	wgengine/magicsock: handle CallMeMaybe discovery mesages Roughly feature complete now. Testing and polish remains. Updates #483	4 years ago
Brad Fitzpatrick	710ee88e94	wgengine/magicsock: add timeout on discovery pings, clean up state Updates #483	4 years ago
Brad Fitzpatrick	77d3ef36f4	wgengine/magicsock: hook up discovery messages, upgrade to LAN works Ping messages now go out somewhat regularly, pong replies are sent, and pong replies are now partially handled enough to upgrade off DERP to LAN. CallMeMaybe packets are sent & received over DERP, but aren't yet handled. That's next (and regular maintenance timers), and then WAN should work. Updates #483	4 years ago
Brad Fitzpatrick	9b8ca219a1	wgengine/magicsock: remove allocs in UDP write, use new netaddr.PutUDPAddr The allocs were only introduced yesterday with a TODO. Now they're gone again.	4 years ago
Brad Fitzpatrick	7b3c0bb7f6	wgengine/magicsock: fix crash reading DERP packet Starting at yesterday's `e96f22e560` (convering some UDPAddrs to IPPorts), Conn.ReceiveIPv4 could return a nil addr, which would make its way through wireguard-go and blow up later. The DERP read path wasn't initializing the addr result parameter any more, and wgRecvAddr wasn't checking it either. Fixes #515	4 years ago
Brad Fitzpatrick	47b4a19786	wgengine/magicsock: use netaddr.ParseIPPort instead of net.ResolveUDPAddr	4 years ago
Brad Fitzpatrick	f7124c7f06	wgengine/magicsock: start of discoEndpoint state tracking Updates #483	4 years ago
Brad Fitzpatrick	92252b0988	wgengine/magicsock: add a little LRU cache for netaddr.IPPort lookups And while plumbing, a bit of discovery work I'll need: the endpointOfAddr map to map from validated paths to the discoEndpoint. Not being populated yet. Updates #483	4 years ago
Brad Fitzpatrick	2d6e84e19e	net/netcheck, wgengine/magicsock: replace more UDPAddr with netaddr.IPPort	4 years ago
Brad Fitzpatrick	9070aacdee	wgengine/magicsock: minor comments & logging & TODO changes	4 years ago
Brad Fitzpatrick	e96f22e560	wgengine/magicsock: start handling disco message, use netaddr.IPPort more Updates #483	4 years ago
Brad Fitzpatrick	a83ca9e734	wgengine/magicsock: cache precomputed nacl/box shared keys Updates #483	4 years ago
Brad Fitzpatrick	a975e86bb8	wgengine/magicsock: add new endpoint type used for discovery-supporting peers This adds a new magicsock endpoint type only used when both sides support discovery (that is, are advertising a discovery key). Otherwise the old code is used. So far the new code only communicates over DERP as proof that the new code paths are wired up. None of the actually discovery messaging is implemented yet. Support for discovery (generating and advertising a key) are still behind an environment variable for now. Updates #483	4 years ago
Brad Fitzpatrick	6f73f2c15a	wgengine, internal/deepprint: replace UAPI usage as hash func; add deepprint The new deepprint package just walks a Go data structure and writes to an io.Writer. It's not pretty like go-spew, etc. We then use it to replace the use of UAPI (which we have a TODO to remove) to generate signatures of data structures to detect whether anything changed (without retaining the old copy). This was necessary because the UAPI conversion ends up trying to do DNS lookups which an upcoming change depends on not happening.	4 years ago
Brad Fitzpatrick	103c06cc68	wgengine/magicsock: open discovery naclbox messages from known peers And track known peers. Doesn't yet do anything with the messages. (nor does it send any yet) Start of docs on the message format. More will come in subsequent changes. Updates #483	4 years ago
David Crawshaw	9258d64261	wgengine/router: do not call ifconfig up if SetRoutesFunc is set The NetworkExtension brings up the interface itself and does not have access to `ifconfig`, which the underlying BSD userspace router attempts to use when Up is called. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
Brad Fitzpatrick	23e74a0f7a	wgengine, magicsock, tstun: don't regularly STUN when idle (mobile only for now) If there's been 5 minutes of inactivity, stop doing STUN lookups. That means NAT mappings will expire, but they can resume later when there's activity again. We'll do this for all platforms later. Updates tailscale/corp#320 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fe50cd0c48	ipn, wgengine: plumb NetworkMap down to magicsock Now we can have magicsock make decisions based on tailcfg.Debug settings sent by the server. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	19d95e095a	wgengine: fix blank line in interface method comment	4 years ago
Reinaldo de Souza	a8635784bc	wgengine: add BSD userspace router to darwin Darwin and FreeBSD are compatible enough to share the userspace router. The OSX router delegates to the BSD userspace router unless `SetRoutesFunc` is set. That preserves the mechanism that allows `ipn-go-bridge` to specify its own routing behavior. Fixes #177 Signed-off-by: Reinaldo de Souza <github@rei.nal.do>	4 years ago
Dmytro Shynkevych	de5f6d70a8	magicsock: eliminate logging race in test Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	53fb25fc2f	all: generate discovery key, plumb it around Not actually used yet. Updates #483	4 years ago
Brad Fitzpatrick	d9054da86a	wgengine: disambiguate Reconfig logging paths	4 years ago
Brad Fitzpatrick	abd79ea368	derp: reduce DERP memory use; don't require callers to pass in memory to use The magicsock derpReader was holding onto 65KB for each DERP connection forever, just in case. Make the derp{,http}.Client be in charge of memory instead. It can reuse its bufio.Reader buffer space.	4 years ago
Brad Fitzpatrick	280e8884dd	wgengine/magicsock: limit redundant log spam on packets from low-pri addresses Fixes #407 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	d05b0500ac	wgengine: loop back tuntap packets destined for local IPs. macOS incorrectly sends packets for the local Tailscale IP into our tunnel interface. We have to turn the packets around and send them back to the kernel. Fixes tailscale/corp#189. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Avery Pennarun	51d176ecff	wgengine: Remove leftover debug message. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Dmytro Shynkevych	07e02ec9d3	wgengine/tsdns: add test and prevent useless updates (#449 ) Signed-Off-By: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	511840b1f6	tsdns: initial implementation of a Tailscale DNS resolver (#396 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	02231e968e	wgengine/tstun: add tests and benchmarks (#436 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	5 years ago
Dmytro Shynkevych	059b1d10bb	wgengine/packet: refactor and expose UDP header marshaling (#408 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	5 years ago
David Anderson	5a32f8e181	wgengine/router: also accept exit code 254 from `ip rule del`. iproute2 3.16.0-2 from Debian Jessie (oldoldstable) doesn't return exit code 2 when deleting a non-existent IP rule. Fixes #434 Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
David Anderson	08a38f21c9	wgengine/router: don't filter subnet routing in netfilter. We have a filter in tailscaled itself now, which is more robust against weird network topologies (such as the one Docker creates). Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
Dmytro Shynkevych	73c40c77b0	filter: prevent escape of QDecode to the heap (#417 ) Performance impact: name old time/op new time/op delta Filter/tcp_in-4 70.7ns ± 1% 30.9ns ± 1% -56.30% (p=0.008 n=5+5) Filter/tcp_out-4 58.6ns ± 0% 19.4ns ± 0% -66.87% (p=0.000 n=5+4) Filter/udp_in-4 96.8ns ± 2% 55.5ns ± 0% -42.64% (p=0.016 n=5+4) Filter/udp_out-4 120ns ± 1% 79ns ± 1% -33.87% (p=0.008 n=5+5) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	5 years ago

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286 Commits (742b8b44a801768c696d33b41ff4ac6a6e0d0104)