tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	41fd4eab5c	envknob: add new package for all the strconv.ParseBool(os.Getenv(..)) A new package can also later record/report which knobs are checked and set. It also makes the code cleaner & easier to grep for env knobs. Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	506c727e30	ipnlocal, net/{dns,tsaddr,tstun}, wgengine: support MagicDNS on IPv6 Fixes #3660 RELNOTE=MagicDNS now works over IPv6 when CGNAT IPv4 is disabled. Change-Id: I001e983df5feeb65289abe5012dedd177b841b45 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	878a20df29	net/dns: add GetBaseConfig to CallbackRouter. Allow users of CallbackRouter to supply a GetBaseConfig implementation. This is expected to be used on Android, which currently lacks both a) platform support for Split-DNS and b) a way to retrieve the current DNS servers. iOS/macOS also use the CallbackRouter but have platform support for SplitDNS, so don't need getBaseConfig. Updates https://github.com/tailscale/tailscale/issues/2116 Updates https://github.com/tailscale/tailscale/issues/988 Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	ad3d6e31f0	net/tsdial: move macOS/iOS peerapi sockopt logic from LocalBackend Change-Id: I812cae027c40c70cdc701427b1a1850cd9bcd60c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c7fb26acdb	net/tsdial: also plumb TUN name and monitor into tsdial.Dialer In prep for moving stuff out of LocalBackend. Change-Id: I9725aa9c3ebc7275f8c40e040b326483c0340127 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c37af58ea4	net/tsdial: move more weirdo dialing into new tsdial package, plumb Not done yet, but this move more of the outbound dial special casing from random packages into tsdial, which aspires to be the one unified place for all outbound dialing shenanigans. Then this plumbs it all around, so everybody is ultimately holding on to the same dialer. As of this commit, macOS/iOS using an exit node should be able to reach to the exit node's DoH DNS proxy over peerapi, doing the sockopt to stay within the Network Extension. A number of steps remain, including but limited to: * move a bunch more random dialing stuff * make netstack-mode tailscaled be able to use exit node's DNS proxy, teaching tsdial's resolver to use it when an exit node is in use. Updates #1713 Change-Id: I1e8ee378f125421c2b816f47bc2c6d913ddcd2f5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	bb91cfeae7	net/socks5/tssocks, wgengine: permit SOCKS through subnet routers/exit nodes Fixes #1970 Change-Id: Ibef45e8796e1d9625716d72539c96d1dbf7b1f76 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	283ae702c1	ipn/ipnlocal: start adding DoH DNS server to peerapi when exit node Updates #1713 Change-Id: I8d9c488f779e7acc811a9bc18166a2726198a429 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	0350cf0438	wgengine{,/router}: annotate some more errors Updates #3351 Change-Id: I8b4f957d2051b3e29401bb449dbadbdada3a7c46 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	cf06f9df37	net/tstun, wgengine: add packet-level and drop metrics Primarily tstun work, but some MagicDNS stuff spread into wgengine. No wireguard reconfig metrics (yet). Updates #3307 Change-Id: Ide768848d7b7d0591e558f118b553013d1ec94ad Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	41da7620af	go.mod: update wireguard-go to pick up roaming toggle wgengine/wgcfg: introduce wgcfg.NewDevice helper to disable roaming at all call sites (one real plus several tests). Fixes tailscale/corp#3016. Signed-off-by: David Anderson <danderson@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Anderson	0532eb30db	all: replace tailcfg.DiscoKey with key.DiscoPublic. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	7e6a1ef4f1	tailcfg: use key.NodePublic in wire protocol types. Updates #3206. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c17250cee2	ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c3d7115e63	wgengine: use key.NodePublic instead of tailcfg.NodeKey. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	72ace0acba	wgengine/magicsock: use key.NodePublic instead of tailcfg.NodeKey. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	418adae379	various: use NodePublic.AsNodeKey() instead of tailcfg.NodeKeyFromNodePublic() Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	ccd36cb5b1	wgengine: remove use of legacy key parsing helper. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	ef241f782e	wgengine/magicsock: remove uses of tailcfg.DiscoKey. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	55b6753c11	wgengine/magicsock: remove use of key.{Public,Private}. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c1d009b9e9	ipn/ipnstate: use key.NodePublic instead of the generic key.Public. Updates #3206. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c9bf773312	wgengine/magicsock: replace use of wgkey with new node key type. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	a9c78910bd	wgengine/wgcfg: convert to use new node key type. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Maisem Ali	85fa1b0d61	wgengine: fail NewUserspaceEngine if wireguard device doesn't come up Just something I ran across while debugging an unrelated failure. This is not in response to any bug/issue. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Avery Pennarun	0d4a0bf60e	magicsock: if STUN failed to send before, rebind before STUNning again. On iOS (and possibly other platforms), sometimes our UDP socket would get stuck in a state where it was bound to an invalid interface (or no interface) after a network reconfiguration. We can detect this by actually checking the error codes from sending our STUN packets. If we completely fail to send any STUN packets, we know something is very broken. So on the next STUN attempt, let's rebind the UDP socket to try to correct any problems. This fixes a problem where iOS would sometimes get stuck using DERP instead of direct connections until the backend was restarted. Fixes #2994 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	3 years ago
Denton Gentry	93c2882a2f	wgengine: flush DNS cache after major link change. Windows has a public dns.Flush used in router_windows.go. However that won't work for platforms like Linux, where we need a different flush mechanism for resolved versus other implementations. We're instead adding a FlushCaches method to the dns Manager, which can be made to work on all platforms as needed. Fixes https://github.com/tailscale/tailscale/issues/2132 Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	dabeda21e0	net/tstun: block looped disco traffic Updates #1526 (maybe fixes? time will tell) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	9502b515f1	net/dns: replace resolver IPs with type for DoH We currently plumb full URLs for DNS resolvers from the control server down to the client. But when we pass the values into the net/dns package, we throw away any URL that isn't a bare IP. This commit continues the plumbing, and gets the URL all the way to the built in forwarder. (It stops before plumbing URLs into the OS configurations that can handle them.) For #2596 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	7bfd4f521d	cmd/tailscale: fix "tailscale ip $self-host-hostname" And in the process, fix the related confusing error messages from pinging your own IP or hostname. Fixes #2803 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	f90ac11bd8	wgengine: remove unnecessary magicConnStarted channel. Having removed magicconn.Start, there's no need to synchronize startup of other things to it any more. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	bb10443edf	wgengine/wgcfg: use just the hexlified node key as the WireGuard endpoint. The node key is all magicsock needs to find the endpoint that WireGuard needs. Updates #2752 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	dfd978f0f2	wgengine/magicsock: use NodeKey, not DiscoKey, as the trigger for lazy reconfig. Updates #2752 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	4c27e2fa22	wgengine/magicsock: remove Start method from Conn. Over time, other magicsock refactors have made Start effectively a no-op, except that some other functions choose to panic if called before Start. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Maisem Ali	fd4838dc57	wgengine/userspace: add support to automatically enable/disable the tailscale protocol in BIRD, when the node is a primary subnet router as determined by control. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	7fcf86a14a	wgengine: fix link monitor / magicsock Start race Fixes #2733 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	6ef734e493	wgengine: predict min.Peers length across calls The number of peers we have will be pretty stable across time. Allocate roughly the right slice size. This reduces memory usage when there are many peers. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	adf696172d	wgengine/userspace: reduce allocations in getStatus Two optimizations. Use values instead of pointers. We were using pointers to make track the "peer in progress" easier. It's not too hard to do it manually, though. Make two passes through the data, so that we can size our return value accurately from the beginning. This is cheap enough compared to the allocation, which grows linearly in the number of peers, that it is worth doing. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	a729070252	net/tstun: add start of Linux TAP support, with DHCP+ARP server Still very much a prototype (hard-coded IPs, etc) but should be non-invasive enough to submit at this point and iterate from here. Updates #2589 Co-Author: David Crawshaw <crawshaw@tailscale.com> Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	f6e833748b	wgengine: use mono.Time Migrate wgengine to mono.Time for performance-sensitive call sites. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	5c266bdb73	wgengine: re-set DNS config on Linux after a major link change Updates #2458 (maybe fixes it) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Joe Tsai	9a0c8bdd20	util/deephash: make hash type opaque The fact that Hash returns a [sha256.Size]byte leaks details about the underlying hash implementation. This could very well be any other hashing algorithm with a possible different block size. Abstract this implementation detail away by declaring an opaque type that is comparable. While we are changing the signature of UpdateHash, rename it to just Update to reduce stutter (e.g., deephash.Update). Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Brad Fitzpatrick	700badd8f8	util/deephash: move internal/deephash to util/deephash No code changes. Just a minor package doc addition about lack of API stability.	3 years ago
Brad Fitzpatrick	c45bfd4180	wgengine: make dnsIPsOverTailscale also consider DefaultResolvers Found during a failed experiment debugging something on Android. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	45e64f2e1a	net/dns{,/resolver}: refactor DNS forwarder, send out of right link on macOS/iOS Fixes #2224 Fixes tailscale/corp#2045 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	4ce15505cb	wgengine: randomize client port if netmap says to For testing out #2187 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Josh Bleecher Snyder	1ece91cede	go.mod: upgrade wireguard-windows, de-fork wireguard-go Pull in the latest version of wireguard-windows. Switch to upstream wireguard-go. This requires reverting all of our import paths. Unfortunately, this has to happen at the same time. The wireguard-go change is very low risk, as that commit matches our fork almost exactly. (The only changes are import paths, CI files, and a go.mod entry.) So if there are issues as a result of this commit, the first place to look is wireguard-windows changes. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	73adbb7a78	wgengine: pass an addressable value to deephash.UpdateHash This makes deephash more efficient. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	25df067dd0	all: adapt to opaque netaddr types This commit is a mishmash of automated edits using gofmt: gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w . gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w . gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w . gofmt -r 'a.IP.As16 -> a.IP().As16' -w . gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w . gofmt -r 'a.IP.As4 -> a.IP().As4' -w . gofmt -r 'a.IP.String -> a.IP().String' -w . And regexps: \w(.)\.Port = (.) -> $1 = $1.WithPort($2) \w(.)\.IP = (.) -> $1 = $1.WithIP($2) And lots of manual fixups. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	ebcd7ab890	wgengine: remove wireguard-go DeviceOptions We no longer need them. This also removes the 32 bytes of prefix junk before endpoints. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	aacb2107ae	all: add extra information to serialized endpoints magicsock.Conn.ParseEndpoint requires a peer's public key, disco key, and legacy ip/ports in order to do its job. We currently accomplish that by: * adding the public key in our wireguard-go fork * encoding the disco key as magic hostname * using a bespoke comma-separated encoding It's a bit messy. Instead, switch to something simpler: use a json-encoded struct containing exactly the information we need, in the form we use it. Our wireguard-go fork still adds the public key to the address when it passes it to ParseEndpoint, but now the code compensating for that is just a couple of simple, well-commented lines. Once this commit is in, we can remove that part of the fork and remove the compensating code. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago

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256 Commits (462e75666b6f95995f365bec45948ab5bc67168e)