tailscale

Commit Graph

Author	SHA1	Message	Date
Josh Bleecher Snyder	57e642648f	wgengine/magicsock: fix typo in comment	4 years ago
Brad Fitzpatrick	6d14678009	wgengine/router: remove unnecessary newlines in log.Printf formats	4 years ago
Brad Fitzpatrick	09d56f54a7	wgengine/router: fix Windows route sorting that caused de-dup to not work (#727 ) Updates #725 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	9b07517f18	wgengine: add Engine.SetLinkChangeCallback Start of making the IPN state machine react to link changes and down its DNS & routes if necessary to unblock proxy resolution (e.g. for transitioning from public to corp networks where the corp network has mandatory proxies and WPAD PAC files that can't be resolved while using the DNS/routes configured previously) This change should be a no-op. Just some callback plumbing.	4 years ago
Dmytro Shynkevych	cb5f3c0819	tsdns: log when settings upstreams. It turns out that otherwise we don't know what exactly was set. Also remove the now unused RootDomain config option. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	aa1da24f18	tsdns: remove now unused fields. Missed in `7541982635`. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	7541982635	tsdns: remove forwarding queue. Two levels of queueing are unnecessary. The resulting implementation performs as follows under request bursts (`count` packets sent concurrently): lost count avg latency 0 / 256 (00.00%) - 28ms 0 / 512 (00.00%) - 146ms 0 / 768 (00.00%) - 166ms 0 / 1024 (00.00%) - 416ms 11 / 1280 (00.86%) - 430ms 145 / 1536 (09.44%) - 715ms 364 / 2048 (17.77%) - 836ms Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	34a7e7c12b	tsdns: be more strict with type validation. Previously, a type AAAA query would be answered with an A record if only an IPv4 address was available. This is irrelevant for us while we only use IPv4, but it will be a bug one day, so it's worth being precise about semantics. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	bc34788e65	tsdns: fix accidental rejection of all non-{A, AAAA} questions. This is a bug introduced in `a903d6c2ed`. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	756d6a72bd	wgengine: lazily create peer wireguard configs more explicitly Rather than consider bigs jumps in last-received-from activity as a signal to possibly reconfigure the set of wireguard peers to have configured, instead just track the set of peers that are currently excluded from the configuration. Easier to reason about. Also adds a bit more logging. This might fix an error we saw on a machine running a recent unstable build: 2020-08-26 17:54:11.528033751 +0000 UTC: 8.6M/92.6M magicsock: [unexpected] lazy endpoint not created for [UcppE], d:42a770f678357249 2020-08-26 17:54:13.691305296 +0000 UTC: 8.7M/92.6M magicsock: DERP packet received from idle peer [UcppE]; created=false 2020-08-26 17:54:13.691383687 +0000 UTC: 8.7M/92.6M magicsock: DERP packet from unknown key: [UcppE] If it does happen again, though, we'll have more logs.	4 years ago
halulu	f27a57911b	cmd/tailscale: add derp and endpoints status (#703 ) cmd/tailscale: add local node's information to status output (by default) RELNOTE=yes Updates #477 Signed-off-by: Halulu <lzjluzijie@gmail.com>	4 years ago
David Crawshaw	dd2c61a519	magicsock: call RequestStatus when DERP connects Second attempt. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Crawshaw	a67b174da1	Revert "magicsock: call RequestStatus when DERP connects" Seems to break linux CI builder. Cannot reproduce locally, so attempting a rollback. This reverts commit `cd7bc02ab1`. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Crawshaw	cd7bc02ab1	magicsock: call RequestStatus when DERP connects Without this, a freshly started ipn client will be stuck in the "Starting" state until something triggers a call to RequestStatus. Usually a UI does this, but until then we can sit in this state until poked by an external event, as is evidenced by our e2e tests locking up when DERP is attached. (This only recently became a problem when we enabled lazy handshaking everywhere, otherwise the wireugard tunnel creation would also trigger a RequestStatus.) Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
Brad Fitzpatrick	24d1a38e81	wgengine/monitor: add a poller to the Windows link change monitor The poller is slow by default, but speeds up for a bit after a network change, in case WPAD/PAC files are still loading.	4 years ago
Dmytro Shynkevych	a903d6c2ed	tailcfg, tsdns: derive root domains from list of nodes (#708 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Disconnect3d	44598e3e89	wgengine/monitor_freebsd.go: remove duplicated errcheck Signed-off-by: disconnect3d <dominik.b.czarnota@gmail.com>	4 years ago
Brad Fitzpatrick	7841c97af5	wgengine: make lazy wireguard on by default It can still be explicitly enabled or disabled via the environment variable, then via control. But the default is to be lazy now.	4 years ago
Dmytro Shynkevych	6c71e5b851	tsdns: copy name when loewrcasing. The previous approach modifies name in-place in the request slice to avoid an allocation. This is incorrect: the question section of a DNS request must be copied verbatim, without any such modification. Software may rely on it (we rely on other resolvers doing it it in tsdns/forwarder). Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	1886dfdca3	tsdns: lowercase the name in parseQuery. Domains in DNS should be case-insensitive. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	9337a99dff	tailcfg, wgengine, controlclient: add control-side gating of lazy WG config	4 years ago
chungdaniel	4d56d19b46	control/controlclient, wgengine/filter: extract parsePacketFilter to … (#696 ) control/controlclient, wgengine/filter: extract parsePacketFilter to new constructor in wgengine/filter Signed-off-by: chungdaniel <daniel@tailscale.com>	4 years ago
Brad Fitzpatrick	461db356b9	wgengine/router/dns: fix staticcheck error on Mac	4 years ago
Dmytro Shynkevych	1af70e2468	tsdns: delegate requests asynchronously (#687 ) Signed-Off-By: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Dmytro Shynkevych	a583e498b0	router/dns: set all domains on Windows (#672 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	f6dc47efe4	tailcfg, controlclient, magicsock: add control feature flag to enable DRPO Updates #150	4 years ago
Brad Fitzpatrick	dbb4c246fa	wgengine/monitor: add Windows linkchange monitor Updates tailscale/corp#553 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	85c3d17b3c	wgengine/magicsock: use disco ping src as a candidate endpoint Consider: Hard NAT (A) <---> Hard NAT w/ mapped port (B) If A sends a packet to B's mapped port, A can disco ping B directly, with low latency, without DERP. But B couldn't establish a path back to A and needed to use DERP, despite already logging about A's endpoint and adding a mapping to it for other purposes (the wireguard conn.Endpoint lookup also needed it). This adds the tracking to discoEndpoint too so it'll be used for finding a path back. Fixes tailscale/corp#556 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	0512fd89a1	wgengine/magicsock: simplify handlePingLocked It's no longer true that 'de may be nil'	4 years ago
Brad Fitzpatrick	b983e5340f	wgengine/monitor: add, clean up netlink logging on route changes Updates #643	4 years ago
Mike Kramlich	6fa7a9a055	wgengine/router/router_userspace_bsd: on Mac the route program syntax expects delete not del -- this had caused router reconfig to fail in some cases. Fixes #673 Signed-off-by: Mike Kramlich <groglogic@gmail.com>	4 years ago
Dmytro Shynkevych	95a18f815c	router/dns: detect host endianness for NetworkManager. Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	b97aac1718	net/interfaces: include DefaultRouteInterface in interfaces.State And log it in wgengine on change. Changing bug in #643. Updates #643	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
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
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
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	7c38db0c97	wgengine/magicsock: don't deadlock on pre-disco Endpoints w/ lazy wireguard configs Fixes tailscale/tailscale#637	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
Brad Fitzpatrick	da3b50ad88	wgengine/filter: omit logging for all v6 multicast, remove debug panic :(	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
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
Dmytro Shynkevych	8c850947db	router: split off sandboxed path from router_darwin (#624 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago

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406 Commits (2352690bde826aa46eeee01af61d7990dab3a5ea)