1639 Commits (b405644f5d297ed85e5c8c1bc3ab9d1b5d14d6d5)

 

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Author	SHA1	Message	Date
Josh Bleecher Snyder	e577303dc7	derp: make writeUint32 and readUint32 not allocate ... The allocations are small, but they're easy enough to avoid. And it removes some clutter from the pprof output. name old time/op new time/op delta SendRecv/msgsize=10-8 10.1µs ± 9% 9.7µs ± 7% -3.45% (p=0.035 n=14+14) SendRecv/msgsize=100-8 8.12µs ± 7% 7.38µs ± 9% -9.02% (p=0.000 n=15+15) SendRecv/msgsize=1000-8 9.51µs ±25% 8.76µs ±22% ~ (p=0.202 n=15+15) SendRecv/msgsize=10000-8 21.1µs ±25% 19.9µs ±14% ~ (p=0.270 n=15+14) WriteUint32-8 25.1ns ± 4% 21.3ns ±12% -15.01% (p=0.000 n=14+14) ReadUint32-8 35.4ns ± 4% 21.9ns ± 4% -38.06% (p=0.000 n=15+15) name old alloc/op new alloc/op delta SendRecv/msgsize=10-8 182B ± 2% 169B ± 1% -7.22% (p=0.000 n=15+13) SendRecv/msgsize=100-8 282B ± 1% 265B ± 1% -5.85% (p=0.000 n=15+15) SendRecv/msgsize=1000-8 1.19kB ± 1% 1.18kB ± 0% -1.26% (p=0.000 n=14+15) SendRecv/msgsize=10000-8 19.3kB ± 4% 18.7kB ± 4% -3.44% (p=0.006 n=12+12) WriteUint32-8 4.00B ± 0% 0.00B -100.00% (p=0.000 n=15+15) ReadUint32-8 4.00B ± 0% 0.00B -100.00% (p=0.000 n=15+15) name old allocs/op new allocs/op delta SendRecv/msgsize=10-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15) SendRecv/msgsize=100-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15) SendRecv/msgsize=1000-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15) SendRecv/msgsize=10000-8 8.47 ±17% 5.00 ± 0% -40.94% (p=0.000 n=15+14) WriteUint32-8 1.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15) ReadUint32-8 1.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15) Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	355c6296f0	derp: add readUint32 and writeUint32 benchmarks ... These aren't particularly performance critical, but since I have an optimization pending for them, it's worth having a corresponding benchmark. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	25b021388b	net/netns, net/interfaces: move defaultRouteInterface, add Android fallback ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	84dc891843	cmd/tailscale/cli: add ping subcommand ... For example: $ tailscale ping -h USAGE ping <hostname-or-IP> FLAGS -c 10 max number of pings to send -stop-once-direct true stop once a direct path is established -verbose false verbose output $ tailscale ping mon.ts.tailscale.com pong from monitoring (100.88.178.64) via DERP(sfo) in 65ms pong from monitoring (100.88.178.64) via DERP(sfo) in 252ms pong from monitoring (100.88.178.64) via [2604:a880:2:d1::36:d001]:41641 in 33ms Fixes #661 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	d65e2632ab	derp: add basic benchmark ... This benchmark is far from perfect: It mixes together client and server. Still, it provides a starting point for easy profiling. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	87cbc067c2	cmd/tailscale/cli: validate advertised routes' IP address-vs-network bits ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a275b9d7aa	control/controlclient: use less battery when stopped, stop map requests ... Updates #604 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	dd97111d06	backoff: update to Go style, document a bit, make 30s explicit ... Also, bit of behavior change: on non-nil err but expired context, don't reset the consecutive failure count. I don't think the old behavior was intentional. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	696020227c	tailcfg, control/controlclient: support delta-encoded netmaps ... Should greatly reduce bandwidth for large networks (including our hello.ipn.dev node). Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	b23f2263c1	derp: add server version to /debug, expvars ... This will make it easier for a human to tell what version is deployed, for (say) correlating line numbers in profiles or panics to corresponding source code. It'll also let us observe version changes in prometheus. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	c64a43a734	wgengine/router: set MTU on Windows to min(configured,possible) ... Fixes tailscale/corp#542 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	9318b4758c	README: update contributing section	4 years ago
Brad Fitzpatrick	6818bb843d	Update README, remove old relaynode dredge	4 years ago
Brad Fitzpatrick	24f78eff62	version: new week, new date	4 years ago
Brad Fitzpatrick	5590daa97d	control/controlclient: reset timeout timer on non-keepalive map updates ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b840e7dd5b	go mod tidy	4 years ago
Josh Bleecher Snyder	1b27eb431a	go.mod: update to newly rebased wireguard-go	4 years ago
Josh Bleecher Snyder	2622e8e082	wgenginer/router: fix build ... Rebasing github.com/tailscale/wireguard-go to upstream wireguard-go changed the API. This commit is analogous to https://git.zx2c4.com/wireguard-windows/commit/?id=6823cc10ffe193c0cb1d61a5d1828d563d3d0e5f	4 years ago
Brad Fitzpatrick	b62b07bc2d	ipn: jack up the MaxMessageSize from 1MB to 10MB ... hello.ipn.dev has a 2.5MB network map	4 years ago
Dmytro Shynkevych	cb01058a53	wgengine: stop giving tsdns a buffer that will be reused ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	9a346fd8b4	wgengine,magicsock: fix two lazy wireguard config issues ... 1) we weren't waking up a discoEndpoint that once existed and went idle for 5 minutes and then got a disco message again. 2) userspaceEngine.noteReceiveActivity had a buggy check; fixed and added a test	4 years ago
Dmytro Shynkevych	78c2e1ff83	tsdns: implement reverse DNS lookups, canonicalize names everywhere. (#640) ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	41c4560592	control/controlclient: remove unused NetworkMap.UAPI method ... And remove last remaining use of wgcfg.ToUAPI in a test's debug output; replace it with JSON.	4 years ago
Brad Fitzpatrick	cff737786e	wgengine/magicsock: fix lazy config deadlock, document more lock ordering ... This removes the atomic bool that tried to track whether we needed to acquire the lock on a future recursive call back into magicsock. Unfortunately that hack doesn't work because we also had a lock ordering issue between magicsock and userspaceEngine (see issue). This documents that too. Fixes #644	4 years ago
Brad Fitzpatrick	43bc86588e	wgengine/monitor: log RTM_DELROUTE details, fix format strings ... Updates #643	4 years ago
Brad Fitzpatrick	2bd9ad4b40	wgengine: fix deadlock between engine and magicsock	4 years ago
Brad Fitzpatrick	5db529a655	logpolicy: upload early logpolicy output, log where we decide to write logs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Dmytro Shynkevych	934c63115e	ipn: put Magic DNS domains first ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	7c38db0c97	wgengine/magicsock: don't deadlock on pre-disco Endpoints w/ lazy wireguard configs ... Fixes tailscale/tailscale#637	4 years ago
Josh Bleecher Snyder	a16a793605	net/interfaces: use syscalls to find private gateway IP address ... iOS doesn't let you run subprocesses, which means we can't use netstat to get routing information. Instead, use syscalls and grub around in the results. We keep the old netstat version around, both for use in non-cgo builds, and for use testing the syscall-based version. Note that iOS doesn't ship route.h, so we include a copy here from the macOS 10.15 SDK (which is itself unchanged from the 10.14 SDK). I have tested manually that this yields the correct gateway IP address on my own macOS and iOS devices. More coverage would be most welcome. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Mike Kramlich	08949d4ef1	--advertise-routes option enabled in Mac tailscale CLI; it checks for IP forwarding enabled ... Signed-off-by: Mike Kramlich <groglogic@gmail.com>	4 years ago
Brad Fitzpatrick	4987a7d46c	wgengine/magicsock: when hard NAT, add stun-ipv4:static-port as candidate ... If a node is behind a hard NAT and is using an explicit local port number, assume they might've mapped a port and add their public IPv4 address with the local tailscaled's port number as a candidate endpoint.	4 years ago
Brad Fitzpatrick	bfcb0aa0be	wgengine/magicsock: deflake tests, Close deadlock again ... Better fix than 37903a9056 Fixes tailscale/corp#533	4 years ago
David Anderson	c3467fbadb	version: adjust to a pure semver version number, per bradfitz's proposal. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	6298018704	control/controlclient: print disco keys NetworkMap diffs (debug change only) ... NetworkMap text diffs being empty were currently used to short-circuit calling magicsock's SetNetworkMap (via Engine.SetNetworkMap), but that went away in c7582dc2 (0.100.0-230) Prior to c7582dc2 (notably, in 0.100.0-225 and below, down to 0.100.0), a change in only disco key (as when a node restarts) but without endpoint changes (as would happen for a client not behind a NAT with random ports) could result in a "netmap diff: (none)" being printed, as well as Engine.SetNetworkMap being skipped, leading to broken discovery endpoints. c7582dc2 fixed the Engine.SetNetworkMap skippage. This change fixes the "netmap diff: (none)" print so we'll actually see when a peer restarts with identical endpoints but a new discovery key.	4 years ago
Brad Fitzpatrick	da3b50ad88	wgengine/filter: omit logging for all v6 multicast, remove debug panic :(	4 years ago
David Anderson	9e26ffecf8	cmd/tailscaled: ignore SIGPIPE. ... SIGPIPE can be generated when CLIs disconnect from tailscaled. This should not terminate the process. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	d64de1ddf7	Revert "cmd/tailscaled: exit gracefully on SIGPIPE" ... tailscaled receives a SIGPIPE when CLIs disconnect from it. We shouldn't shut down in that case. This reverts commit 43b271cb26. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	358cd3fd92	ipn: fix incorrect change tracking for packet filter. ... ORder of operations to trigger a problem: - Start an already authed tailscaled, verify you can ping stuff. - Run `tailscale up`. Notice you can no longer ping stuff. The problem is that `tailscale up` stops the IPN state machine before restarting it, which zeros out the packet filter but _not_ the packet filter hash. Then, upon restarting IPN, the uncleared hash incorrectly makes the code conclude that the filter doesn't need updating, and so we stay with a zero filter (reject everything) for ever. The fix is simply to update the filterHash correctly in all cases, so that running -> stopped -> running correctly changes the filter at every transition. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Dmytro Shynkevych	28e52a0492	all: dns refactor, add Proxied and PerDomain flags from control (#615) ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	43b271cb26	cmd/tailscaled: exit gracefully on SIGPIPE ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	3e493e0417	wgengine: fix lazy wireguard config bug on sent packet minute+ later ... A comparison operator was backwards. The bad case went: * device A send packet to B at t=1s * B gets added to A's wireguard config * B gets packet (5 minutes pass) * some other activity happens, causing B to expire to be removed from A's network map, since it's been over 5 minutes since sent or received activity * device A sends packet to B at t=5m1s * normally, B would get added back, but the old send time was not zero (we sent earlier!) and the time comparison was backwards, so we never regenerated the wireguard config. This also refactors the code for legibility and moves constants up top, with comments.	4 years ago
Brad Fitzpatrick	c253d4f948	net/interfaces: don't try to fork on iOS in likelyHomeRouterIPDarwin ... No subprocesses allowed on iOS. Will need to do this differently later.	4 years ago
Dmytro Shynkevych	8c850947db	router: split off sandboxed path from router_darwin (#624) ... Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	cb970539a6	wgengine/magicsock: remove TODO comment that's no longer applicable	4 years ago
David Crawshaw	92e9a5ac15	tailscaled.service: use default restart limiting ... It appears that systemd has sensible defaults for limiting crash loops: DefaultStartLimitIntervalSec=10s DefaultStartLimitBurst=5 Remove our insta-restart configuration so that it works. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
Brad Fitzpatrick	915f65ddae	wgengine/magicsock: stop disco activity on IPN stop ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c180abd7cf	wgengine/magicsock: merge errClosed and errConnClosed	4 years ago
Brad Fitzpatrick	7cc8fcb784	wgengine/filter: remove leftover debug knob that staticcheck doesn't like	4 years ago
Brad Fitzpatrick	b4d97d2532	wgengine/filter: fix IPv4 IGMP spam omission, also omit ff02::16 spam ... And add tests. Fixes #618 Updates #402	4 years ago