tailscale

Commit Graph

Author	SHA1	Message	Date
Denton Gentry	a9745a0b68	interfaces: try larger read from /proc/net/route Work around https://github.com/google/gvisor/issues/5732 by trying to read /proc/net/route with a larger bufsize if it fails the first time. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	54ba6194f7	interfaces: allow IPv6 ULA as a valid address. IPv6 Unique Local Addresses are sometimes used with Network Prefix Translation to reach the Internet. In that respect their use is similar to the private IPv4 address ranges 10/8, 172.16/12, and 192.168/16. Treat them as sufficient for AnyInterfaceUp(), but specifically exclude Tailscale's own IPv6 ULA prefix to avoid mistakenly trying to bootstrap Tailscale using Tailscale. This helps in supporting Google Cloud Run, where the addresses are 169.254.8.1/32 and fddf:3978:feb1:d745::c001/128 on eth1. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	ecf310be3c	net/tsaddr: IsUla() for IPv6 Unique Local Address Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Brad Fitzpatrick	41e4e02e57	net/{packet,tstun}: send peerapi port in TSMP pongs For discovery when an explicit hostname/IP is known. We'll still also send it via control for finding peers by a list. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	25e0bb0a4e	net/tstun: rename wrap_windows.go to tun_windows.go. The code has nothing to do with wrapping, it's windows-specific driver initialization code. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	22d53fe784	net/tstun: document exported function. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	016de16b2e	net/tstun: rename TUN to Wrapper. The tstun packagen contains both constructors for generic tun Devices, and a wrapper that provides additional functionality. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	82ab7972f4	net/tstun: rename NewFakeTUN to NewFake. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	588b70f468	net/tstun: merge in wgengine/tstun. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	018200aeba	net/tstun: rename from net/tun. We depend on wireguard-go/tun, identical leaf packages can be confusing in code. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	44d9929208	wgengine: remove Config.TUNName, require caller to create device. Also factors out device creation and associated OS workarounds to net/tun. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	7f174e84e6	net/interfaces: remove mutating methods, add EqualFiltered instead Now callers (wgengine/monitor) don't need to mutate the state to remove boring interfaces before calling State.Equal. Instead, the methods to remove boring interfaces from the State are removed, as is the reflect-using Equal method itself, and in their place is a new EqualFiltered method that takes a func predicate to match interfaces to compare. And then the FilterInteresting predicate is added for use with EqualFiltered to do the job that that wgengine/monitor previously wanted. Now wgengine/monitor can keep the full interface state around, including the "boring" interfaces, which we'll need for peerapi on macOS/iOS to bind to the interface index of the utunN device. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	7dc88e4c1e	net/interfaces: track more interface metadata in State We have it already but threw it away. But macOS/iOS code will be needing the interface index, so hang on to it. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	6521f02ff6	Move DNS flush logic to net/dns. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	9f7f2af008	wgengine/router/dns: move to net/dns. Preparation for merging the APIs and whatnot. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	8432999835	Move wgengine/tsdns to net/dns. Straight move+fixup, no other changes. In prep for merging with wgengine/router/dns. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	2384c112c9	net/packet, wgengine/{filter,tstun}: add TSMP ping Fixes #1467 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e2b3d9aa5f	all: s/Magic DNS/MagicDNS/ for consistency Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1eb95c7e32	net/packet, wgengine{,/filter}: remove net/packet IPProto forwarding consts Only use the ones in types/ipproto now. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	01b90df2fa	net/packet, wgengine/filter: support SCTP Add proto to flowtrack.Tuple. Add types/ipproto leaf package to break a cycle. Server-side ACL work remains. Updates #1516 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Aleksandar Pesic	7b57310966	net/interfaces: use windows API to get the default route instead of parsing `route print` output Fixes: #1470 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
David Anderson	6fb5d4080c	net/portmapper: silently handle PCP NOT_AUTHORIZED responses. Fixes #1525. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	d5fd373f09	net/interfaces: skip IPv6 link-local interfaces like we do for IPv4 We strip them control-side anyway, and we already strip IPv4 link local, so there's no point uploading them. And iOS has a ton of them, which results in somewhat silly amount of traffic in the MapRequest. We'll be doing same-LAN-inter-tailscaled link-local traffic a different way, with same-LAN discovery. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	44ab0acbdb	net/portmapper, wgengine/monitor: cache gateway IP info until link changes Cuts down allocs & CPU in steady state (on regular STUN probes) when network is unchanging. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	974be2ec5c	net/interfaces: rewrite the darwin likelyHomeRouterIP from C to Go We basically already had the RIB-parsing Go code for this in both net/interfaces and wgengine/monitor, for other reasons. Fixes #1426 Fixes #1471 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c6358f2247	net/netcheck: add a few more STUN retries for prior DERP home For #1310, maybe. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	0a84359d2d	tailcfg, net/netcheck: let control mark "Avoid" bit on DERP regions So a region can be used if needed, but won't be STUN-probed or used as its home. This gives us another possible debugging mechanism for #1310, or can be used as a short-term measure against DERP flip-flops for people equidistant between regions if our hysteresis still isn't good enough. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	d79a2f3809	wgengine/filter: only log packets to/from non-default routes. Fixes tailscale/corp#1429. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	ef7bac2895	tailcfg, net/portmapper, wgengine/magicsock: add NetInfo.HavePortMap Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fee74e7ea7	net/interfaces, wgengine/monitor: fix false positives link changes interfaces.State.String tries to print a concise summary of the network state, removing any interfaces that don't have any or any interesting IP addresses. On macOS and iOS, for instance, there are a ton of misc things. But the link monitor based its are-there-changes decision on interfaces.State.Equal, which just used reflect.DeepEqual, including comparing all the boring interfaces. On macOS, when turning wifi on or off, there are a ton of misc boring interface changes, resulting in hitting an earlier check I'd added on suspicion this was happening: [unexpected] network state changed, but stringification didn't This fixes that by instead adding a new interfaces.State.RemoveUninterestingInterfacesAndAddresses method that does, uh, that. Then use that in the monitor. So then when Equal is used later, it's DeepEqualing the already-cleaned version with only interesting interfaces. This makes cmd/tailscaled debug --monitor much less noisy. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b14ea68754	net/interfaces: log why when we failed to look up gateway on macOS Not beautiful, but I'm debugging connectivity problems on NEProvider.sleep+wake and need more clues. Updates #1426 Updates tailscale/corp#1289 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d37b3b02cd	net/dnsfallback: fix infinite loop and limit number of candidates Updates #1455 (fixes the DNS spin part, but other things aren't ideal there) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	829eb8363a	net/interfaces: sort returned addresses from LocalAddresses Also change the type to netaddr.IP while here, because it made sorting easier. Updates tailscale/corp#1397 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	10f48087f4	net/tshttpproxy: call winhttp calls from a fixed OS thread We often see things in logs like: 2021-03-02 17:52:45.2456258 +0800 +0800: winhttp: Open: The parameter is incorrect. 2021-03-02 17:52:45.2506261 +0800 +0800: tshttpproxy: winhttp: GetProxyForURL("https://log.tailscale.io/c/tailnode.log.tailscale.io/5037bb42f4bc330e2d6143e191a7ff7e837c6be538139231de69a439536e0d68"): ERROR_INVALID_PARAMETER [unexpected] I have a hunch that WinHTTP has thread-local state. If so, this would fix it. If not, this is pretty harmless. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8a55d463c8	net/interfaces: merge darwin files for DefaultRouteInterface in sandbox DefaultRouteInterface was previously guarded by build tags such that it was only accessible to tailscaled-on-macos, but there was no reason for that. It runs fine in the sandbox and gives better default info, so merge its file into interfaces_darwin.go. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	8d77dfdacb	wgengine/router: add a dummy IPv6 address if needed for default routing. Fixes #1339 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	63ed4dd6c9	net/portmapper: fix typo Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	f647e3daaf	ipn/ipnlocal: transform default routes into "all but LAN" routes. Fixes #1177. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	9df4185c94	control/controlclient, net/{dnscache,dnsfallback}: add DNS fallback mechanism Updates #1405 Updates #1403 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	38dc6fe758	cmd/tailscaled, wgengine: remove --fake, replace with netstack And add a --socks5-server flag. And fix a race in SOCKS5 replies where the response header was written concurrently with the copy from the backend. Co-authored with Naman Sood. Updates #707 Updates #504 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	fe16ef6812	net/socks5: create SOCKS5 package for proxy server in userspace networking Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	000b80de9d	net/interfaces: go idle on macOS when wifi/etc is down, ignore utun* interfaces Updates tailscale/corp#1289 Updates tailscale/corp#1367 Updates tailscale/corp#1378 Updates tailscale/felicity#4	4 years ago
Brad Fitzpatrick	c64bd587ae	net/portmapper: add NAT-PMP client, move port mapping service probing * move probing out of netcheck into new net/portmapper package * use PCP ANNOUNCE op codes for PCP discovery, rather than causing short-lived (sub-second) side effects with a 1-second-expiring map + delete. * track when we heard things from the router so we can be less wasteful in querying the router's port mapping services in the future * use portmapper from magicsock to map a public port Fixes #1298 Fixes #1080 Fixes #1001 Updates #864 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6a2c6541da	net/tshttpproxy: support HTTP proxy environment credentials on Windows too and some minor style nits. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Christine Dodrill	3e5c3e932c	net/tshttpproxy: support basic auth when available (#1354 ) This allows proxy URLs such as: http://azurediamond:hunter2@192.168.122.154:38274 to be used in order to dial out to control, logs or derp servers. Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	f4ae745b0b	net/{interfaces,netns}: add some new tests, missed from prior commit I meant for these to be part of `52e24aa966`.	4 years ago
Brad Fitzpatrick	e923639feb	net/interfaces: fix staticcheck error on darwin	4 years ago
Brad Fitzpatrick	52e24aa966	net/{interfaces,ns}: add tailscaled-mode darwin routing looping prevention Fixes #1331 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	20e66c5b92	net/interfaces: reconcile interface filtering with address printing in logs The interface.State logging tried to only log interfaces which had interesting IPs, but the what-is-interesting checks differed between the code that gathered the interface names to print and the printing of their addresses.	4 years ago
Josh Bleecher Snyder	138055dd70	tstest/natlab: use net.ErrClosed instead of a new error Upstream wireguard-go decided to use errors.Is(err, net.ErrClosed) instead of checking the error string. It also provided an unsafe linknamed version of net.ErrClosed for clients running Go 1.15. Switch to that. This reduces the time required for the wgengine/magicsock tests on my machine from ~35s back to the ~13s it was before `456cf8a376`. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago

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187 Commits (c3bee0b7224a239b911866d3a6142898269ac3f1)