420 Commits (main)

Author	SHA1	Message	Date
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
Brad Fitzpatrick	fd7b738e5b	derp: use pad32 package for padding, reduce duplication ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	fdc081c291	net/portmapper: fix UPnP probing, work against all ports ... Prior to Tailscale 1.12 it detected UPnP on any port. Starting with Tailscale 1.11.x, it stopped detecting UPnP on all ports. Then start plumbing its discovered Location header port number to the code that was assuming port 5000. Fixes #2109 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	9da4181606	tstime/rate: new package ... This is a simplified rate limiter geared for exactly our needs: A fast, mono.Time-based rate limiter for use in tstun. It was generated by stripping down the x/time/rate rate limiter to just our needs and switching it to use mono.Time. It removes one time.Now call per packet. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	8a3d52e882	wgengine/magicsock: use mono.Time ... magicsock makes multiple calls to Now per packet. Move to mono.Now. Changing some of the calls to use package mono has a cascading effect, causing non-per-packet call sites to also switch. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	c2202cc27c	net/tstun: use mono.Time ... There's a call to Now once per packet. Move to mono.Now. Though the current implementation provides high precision, we document it to be coarse, to preserve the ability to switch to a coarse monotonic time later. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Joe Tsai	d145c594ad	util/deephash: improve cycle detection (#2470) ... The previous algorithm used a map of all visited pointers. The strength of this approach is that it quickly prunes any nodes that we have ever visited before. The detriment of the approach is that pruning is heavily dependent on the order that pointers were visited. This is especially relevant for hashing a map where map entries are visited in a non-deterministic manner, which would cause the map hash to be non-deterministic (which defeats the point of a hash). This new algorithm uses a stack of all visited pointers, similar to how github.com/google/go-cmp performs cycle detection. When we visit a pointer, we push it onto the stack, and when we leave a pointer, we pop it from the stack. Before visiting a pointer, we first check whether the pointer exists anywhere in the stack. If yes, then we prune the node. The detriment of this approach is that we may hash a node more often than before since we do not prune as aggressively. The set of visited pointers up until any node is only the path of nodes up to that node and not any other pointers that may have been visited elsewhere. This provides us deterministic hashing regardless of visit order. We can now delete hashMapFallback and associated complexity, which only exists because the previous approach was non-deterministic in the presence of cycles. This fixes a failure of the old algorithm where obviously different values are treated as equal because the pruning was too aggresive. See https://github.com/tailscale/tailscale/issues/2443#issuecomment-883653534 The new algorithm is slightly slower since it prunes less aggresively: name old time/op new time/op delta Hash-8 66.1µs ± 1% 68.8µs ± 1% +4.09% (p=0.000 n=19+19) HashMapAcyclic-8 63.0µs ± 1% 62.5µs ± 1% -0.76% (p=0.000 n=18+19) TailcfgNode-8 9.79µs ± 2% 9.88µs ± 1% +0.95% (p=0.000 n=19+17) HashArray-8 643ns ± 1% 653ns ± 1% +1.64% (p=0.000 n=19+19) However, a slower but more correct algorithm seems more favorable than a faster but incorrect algorithm. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
julianknodt	1bb6abc604	net/portmapper: add upnp port mapping ... Add in UPnP portmapping, using goupnp library in order to get the UPnP client and run the portmapping functions. This rips out anywhere where UPnP used to be in portmapping, and has a flow separate from PMP and PCP. RELNOTE=portmapper now supports UPnP mappings Fixes #682 Updates #2109 Signed-off-by: julianknodt <julianknodt@gmail.com>	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
julianknodt	506c2fe8e2	cmd/tailscale: make netcheck use active DERP map, delete static copy ... After allowing for custom DERP maps, it's convenient to be able to see their latency in netcheck. This adds a query to the local tailscaled for the current DERPMap. Updates #1264 Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
Brad Fitzpatrick	3910c1edaf	net/socks5/tssocks: add new package, move SOCKS5 glue out of tailscaled ... Prep for #1970, #2264, #2268 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	10d7c2583c	net/dnsfallback: don't depend on derpmap.Prod ... Move derpmap.Prod to a static JSON file (go:generate'd) instead, to make its role explicit. And add a TODO about making dnsfallback use an update-over-time DERP map file instead of a baked-in one. Updates #1264 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
julianknodt	148602a89a	derp,cmd/derper: allow server to verify clients ... This adds a flag to the DERP server which specifies to verify clients through a local tailscaled. It is opt-in, so should not affect existing clients, and is mainly intended for users who want to run their own DERP servers. It assumes there is a local tailscaled running and will attempt to hit it for peer status information. Updates #1264 Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
Brad Fitzpatrick	38be964c2b	go.mod: update netstack ... Fixes a atomic alignment crash on 32-bit machines. Fixes #2129 Fixes tailscale/tailscale-synology#66 (same) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	ad288baaea	net/interfaces: use IPv4 link local if nothing better ... The only connectivity an AWS Lambda container has is an IPv4 link-local 169.254.x.x address using NAT: 12: vtarget_1@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 7e:1c:3f:00:00:00 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet 169.254.79.1/32 scope global vtarget_1 valid_lft forever preferred_lft forever If there are no other IPv4/v6 addresses available, and we are running in AWS Lambda, allow IPv4 169.254.x.x addresses to be used. ---- Similarly, a Google Cloud Run container's only connectivity is a Unique Local Address fddf:3978:feb1:d745::c001/128. If there are no other addresses available then allow IPv6 Unique Local Addresses to be used. We actually did this in an earlier release, but now refactor it to work the same way as the IPv4 link-local support is being done. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	03311bb0d6	hostinfo: add hostinfo package, move stuff out of controlclient ... And make it cheaper, so other parts of the code can check the environment. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	f944614c5c	cmd/tailscale/web: add support for QNAP ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Matt Layher	6956645ec8	go.mod: bump github.com/mdlayher/netlink to v1.4.1 ... Signed-off-by: Matt Layher <mdlayher@gmail.com>	3 years ago
Adrian Dewhurst	6d6cf88d82	control/controlclient: use our fork of certstore ... The cyolosecurity fork of certstore did not update its module name and thus can only be used with a replace directive. This interferes with installing using `go install` so I created a tailscale fork with an updated module name. Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	4 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>	4 years ago
Brad Fitzpatrick	a86a0361a7	go.mod: upgrade all deps ... At the start of a dev cycle we'll upgrade all dependencies. Done with: $ for Dep in $(cat go.mod | perl -ne '/(\S+) v/ and print "$1\n"'); do go get $Dep@upgrade; done Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	5666663370	net/packet: use netaddr AppendTo methods ... This lets us remote the types/strbuilder package, which had only a single user. And it's faster. name old time/op new time/op delta String/tcp4-8 175ns ± 0% 58ns ± 1% -66.95% (p=0.000 n=10+9) String/tcp6-8 226ns ± 1% 136ns ± 1% -39.85% (p=0.000 n=10+10) String/udp4-8 175ns ± 1% 58ns ± 1% -67.01% (p=0.000 n=10+9) String/udp6-8 230ns ± 1% 140ns ± 0% -39.32% (p=0.000 n=10+9) String/icmp4-8 164ns ± 0% 50ns ± 1% -69.89% (p=0.000 n=10+10) String/icmp6-8 217ns ± 1% 129ns ± 0% -40.46% (p=0.000 n=10+10) String/igmp-8 196ns ± 0% 56ns ± 1% -71.32% (p=0.000 n=10+10) String/unknown-8 2.06ns ± 1% 2.06ns ± 2% ~ (p=0.985 n=10+10) name old alloc/op new alloc/op delta String/tcp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/tcp6-8 168B ± 0% 96B ± 0% -42.86% (p=0.000 n=10+10) String/udp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/udp6-8 168B ± 0% 96B ± 0% -42.86% (p=0.000 n=10+10) String/icmp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/icmp6-8 104B ± 0% 64B ± 0% -38.46% (p=0.000 n=10+10) String/igmp-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) String/unknown-8 0.00B 0.00B ~ (all equal) name old allocs/op new allocs/op delta String/tcp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/tcp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/udp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/udp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/icmp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/icmp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/igmp-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/unknown-8 0.00 0.00 ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Maisem Ali	234cc87f48	cmd/tailscaled: use the wf package instead of wireguard-windows/firewall ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Brad Fitzpatrick	36a26e6a71	internal/deephash: rename from deepprint ... Yes, it printed, but that was an implementation detail for hashing. And coming optimization will make it print even less. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Avery Pennarun	19c3e6cc9e	types/logger: rate limited: more hysteresis, better messages. ... - Switch to our own simpler token bucket, since x/time/rate is missing necessary stuff (can't provide your own time func; can't check the current bucket contents) and it's overkill anyway. - Add tests that actually include advancing time. - Don't remove the rate limit on a message until there's enough room to print at least two more of them. When we do, we'll also print how many we dropped, as a contextual reminder that some were previously lost. (This is more like how the Linux kernel does it.) - Reformat the [RATE LIMITED] messages to be shorter, and to not corrupt original message. Instead, we print the message, then print its format string. - Use %q instead of \"%s\", for more accurate parsing later, if the format string contained quotes. Fixes #1772 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Josh Bleecher Snyder	20e04418ff	net/dns: add GOOS build tags ... Fixes #1786 Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	3c543c103a	wgengine/magicsock: unify initial bind and rebind ... We had two separate code paths for the initial UDP listener bind and any subsequent rebinds. IPv6 got left out of the rebind code. Rather than duplicate it there, unify the two code paths. Then improve the resulting code: * Rebind had nested listen attempts to try the user-specified port first, and then fall back to :0 if that failed. Convert that into a loop. * Initial bind tried only the user-specified port. Rebind tried the user-specified port and 0. But there are actually three ports of interest: The one the user specified, the most recent port in use, and 0. We now try all three in order, as appropriate. * In the extremely rare case in which binding to port 0 fails, use a dummy net.PacketConn whose reads block until close. This will keep the wireguard-go receive func goroutine alive. As a pleasant side-effect of this, if we decide that we need to resuscitate #1796, it will now be much easier. Fixes #1799 Co-authored-by: David Anderson <danderson@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	8fb66e20a4	wgengine/magicsock: remove DefaultPort const ... Assume it'll stay at 0 forever, so hard-code it and delete code conditional on it being non-0. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
David Anderson	25ce9885a2	net/dns: don't use NM+resolved for NM >=1.26.6. ... NetworkManager fixed the bug that forced us to use NetworkManager if it's programming systemd-resolved, and in the same release also made NetworkManager ignore DNS settings provided for unmanaged interfaces... Which breaks what we used to do. So, with versions 1.26.6 and above, we MUST NOT use NetworkManager to indirectly program systemd-resolved, but thankfully we can talk to resolved directly and get the right outcome. Fixes #1788 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Aleksandar Pesic	7c985e4944	ipn/ipnlocal: add file sharing to windows shell ... Updates: tailscale/winmin#33 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Alex Brainman	7689213aaa	cmd/tailscaled: add subcommands to install and remove tailscaled Windows service ... This change implements Windows version of install-system-daemon and uninstall-system-daemon subcommands. When running the commands the user will install or remove Tailscale Windows service. Updates #1232 Signed-off-by: Alex Brainman <alex.brainman@gmail.com>	4 years ago
Brad Fitzpatrick	db5e269463	client/tailscale/apitype: move local API types to new apitype package ... They were scattered/duplicated in misc places before. It can't be in the client package itself for circular dep reasons. This new package is basically tailcfg but for localhost communications, instead of to control. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	5480189313	net/dns: implement a DNS override workaround for legacy resolvconf. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	1f99f889e1	ipn/{ipnlocal,localapi}: add localapi handler to dial/proxy file PUTs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	7d84ee6c98	net/dns: unify the OS manager and internal resolver. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	b3ceca1dd7	wgengine/...: split into multiple receive functions ... Upstream wireguard-go has changed its receive model. NewDevice now accepts a conn.Bind interface. The conn.Bind is stateless; magicsock.Conns are stateful. To work around this, we add a connBind type that supports cheap teardown and bring-up, backed by a Conn. The new conn.Bind allows us to specify a set of receive functions, rather than having to shoehorn everything into ReceiveIPv4 and ReceiveIPv6. This lets us plumbing DERP messages directly into wireguard-go, instead of having to mux them via ReceiveIPv4. One consequence of the new conn.Bind layer is that closing the wireguard-go device is now indistinguishable from the routine bring-up and tear-down normally experienced by a conn.Bind. We thus have to explicitly close the magicsock.Conn when the close the wireguard-go device. One downside of this change is that we are reliant on wireguard-go to call receiveDERP to process DERP messages. This is fine for now, but is perhaps something we should fix in the future. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	90f82b6946	net/dns/resolver: add live reconfig, plumb through to ipnlocal. ... The resolver still only supports a single upstream config, and ipn/wgengine still have to split up the DNS config, but this moves closer to unifying the DNS configs. As a handy side-effect of the refactor, IPv6 MagicDNS records exist now. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	d99f5b1596	net/dns/resolver: factor the resolver out into a sub-package. ... 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
Adrian Dewhurst	04dd6d1dae	control/controlclient: sign RegisterRequest (#1549) ... control/controlclient: sign RegisterRequest Some customers wish to verify eligibility for devices to join their tailnets using machine identity certificates. TLS client certs could potentially fulfill this role but the initial customer for this feature has technical requirements that prevent their use. Instead, the certificate is loaded from the Windows local machine certificate store and uses its RSA public key to sign the RegisterRequest message. There is room to improve the flexibility of this feature in future and it is currently only tested on Windows (although Darwin theoretically works too), but this offers a reasonable starting place for now. Updates tailscale/coral#6 Signed-off-by: Adrian Dewhurst <adrian@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
Brad Fitzpatrick	dad10fee9c	Revert "cmd/tailscaled: split package main into main shim + package" ... This reverts commit b81bd8025b. Not needed. See: https://github.com/golang/go/wiki/Modules#how-can-i-track-tool-dependencies-for-a-module	4 years ago
Brad Fitzpatrick	82c4cb765c	cmd/tailscaled: split package main into main shim + package ... So we can empty import the guts of cmd/tailscaled from another module for go mod tidy reasons. 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
Brad Fitzpatrick	0a02aaf813	control, ipn, tailcfg: remove golang.org/x/oauth2 dep, add tailcfg.Oauth2Token ... golang.org/x/oauth2 pulls in App Engine and grpc module dependencies, screwing up builds that depend on this module. Some background on the problem: https://go.googlesource.com/proposal/+/master/design/36460-lazy-module-loading.md Fixes tailscale/corp#1471 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
Christine Dodrill	a480b1baa5	logpolicy: set log target on windows based on a registry key (#1542) ... Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	aa79a57f63	wgengine/netstack: use inet.af/netstack, remove 64-bit only limitation ... This reverts the revert commit 84aba349d9. And changes us to use inet.af/netstack. Updates #1518 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	84aba349d9	Revert "wgengine/netstack: update gvisor to remove 64-bit only limitation" ... Breaks our corp repo due to gRPC dependency hell. This reverts commit d42f8b7f9a.	4 years ago
Brad Fitzpatrick	d42f8b7f9a	wgengine/netstack: update gvisor to remove 64-bit only limitation ... gVisor fixed their google/gvisor#1446 so we can include gVisor mode on 32-bit machines. A few minor upstream API changes, as normal. 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	d491adbf09	cmd/tailscaled: on Synology, fall back to netstack if needed ... Updates tailscale/tailscale-synology#35 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Aleksandar Pesic	258d0e8d9a	wgengine/monitor: simplify the Windows monitor to make it more reliable ... Updates tailscale/tailscale#1414 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
David Anderson	793cb131f0	wgengine/router: toggle killswitch when using default routes on windows. ... Fixes #1398. 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	fec9dcbda1	wgengine/netstack: start SOCKS5 server in netstack mode ... Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Naman Sood	517c90d7e5	wgengine, cmd/tailscaled: refactor netstack, forward TCP to hello as demo (#1301) ... Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	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
Matt Layher	2c500cee23	go.mod: bump github.com/mdlayher/netlink, github.com/jsimonetti/rtnetlink ... Signed-off-by: Matt Layher <mdlayher@gmail.com>	4 years ago
Brad Fitzpatrick	86d3a6c9a6	Switch to Go 1.16. ... Fixes #1370 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fd8e070d01	health, control/controlclient, wgengine: report when router unhealthy ... Updates tailscale/corp#1338 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d3efe8caf6	safesocket, ipn/ipnserver: look up peer creds on Darwin ... And open up socket permissions like Linux, now that we know who connections are from. This uses the new inet.af/peercred that supports Linux and Darwin at the moment. Fixes #1347 Fixes #1348 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fdac0387a7	ipn/ipnserver, ipn/ipnlocal: move whois handler to new localapi package	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	1e7a35b225	types/netmap: split controlclient.NetworkMap off into its own leaf package ... Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ddfcc4326c	types/persist: split controlclient.Persist into a small leaf package ... This one alone doesn't modify the global dependency map much (depaware.txt if anything looks slightly worse), but it leave controlclient as only containing NetworkMap: bradfitz@tsdev:~/src/tailscale.com/ipn$ grep -F "controlclient." *.go backend.go: NetMap *controlclient.NetworkMap // new netmap received fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) handle.go: netmapCache *controlclient.NetworkMap handle.go:func (h *Handle) NetMap() *controlclient.NetworkMap { Once that goes into a leaf package, then ipn doesn't depend on controlclient at all, and then the client gets smaller. Updates #1278	4 years ago
Brad Fitzpatrick	6064b6ff47	wgengine/wgcfg/nmcfg: split control/controlclient/netmap.go into own package ... It couldn't move to ipnlocal due to test dependency cycles. Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a7562be5e1	cmd/tailscaled: move more of the Windows server setup code into tailscaled ... Updates #1232	4 years ago
Brad Fitzpatrick	6f7974b7f2	cmd/tailscaled: add missing depaware.txt update	4 years ago
Josh Bleecher Snyder	aa6856a9eb	wgengine: adapt to wireguard-go changes ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	d76334d2f0	ipn: split LocalBackend off into new ipn/ipnlocal package ... And move a couple other types down into leafier packages. Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc. Fixes #1181 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6254efb9ef	cmd/tailscale{,d}: move debug subcommand to tailscaled ... Work on reducing the size of the tailscale binary, which is currently pulling in most of the same code as tailscaled. Updates #1181	4 years ago
Josh Bleecher Snyder	fe7c3e9c17	all: move wgcfg from wireguard-go ... This is mostly code movement from the wireguard-go repo. Most of the new wgcfg package corresponds to the wireguard-go wgcfg package. wgengine/wgcfg/device{_test}.go was device/config{_test}.go. There were substantive but simple changes to device_test.go to remove internal package device references. The API of device.Config (now wgcfg.DeviceConfig) grew an error return; we previously logged the error and threw it away. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Sonia Appasamy	567c5a6d9e	tailcfg, controlclient: add DisplayName field to tailcfg.Node and populate it from controlclient (#1191) ... Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	4 years ago
Brad Fitzpatrick	9ce92aad3e	cmd/tailscaled: update depaware.txt	4 years ago
Josh Bleecher Snyder	d5baeeed5c	wgengine: use Tailscale-style peer identifiers in logs ... Rewrite log lines on the fly, based on the set of known peers. This enables us to use upstream wireguard-go logging, but maintain the Tailscale-style peer public key identifiers that the rest of our systems (and people) expect. Fixes #1183 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	9541886856	wgengine/magicsock: disable regular STUNs for all platforms by default ... Reduces background CPU & network. Updates #1034 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	654b5f1570	all: convert from []wgcfg.Endpoint to string ... This eliminates a dependency on wgcfg.Endpoint, as part of the effort to eliminate our wireguard-go fork. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	9abcb18061	wgengine/magicsock: import more of wireguard-go, update docstrings. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	22507adf54	wgengine/magicsock: stop depending on UpdateDst in legacy codepaths. ... This makes connectivity between ancient and new tailscale nodes slightly worse in some cases, but only in cases where the ancient version would likely have failed to get connectivity anyway. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	85e54af0d7	wgengine: on TCP connect fail/timeout, log some clues about why it failed ... So users can see why things aren't working. A start. More diagnostics coming. Updates #1094	4 years ago
Brad Fitzpatrick	f85769b1ed	wgengine/magicsock: drop netaddr.IPPort cache ... netaddr.IP no longer allocates, so don't need a cache or all its associated code/complexity. This totally removes groupcache/lru from the deps. Also go mod tidy.	4 years ago
Brad Fitzpatrick	a80446c026	Update depaware (removes lru from wgengine/filter)	4 years ago
Naman Sood	f69e46175d	wengine/netstack: bump gvisor to latest version ... * wengine/netstack: bump gvisor to latest version Signed-off-by: Naman Sood <naman@tailscale.com> * update dependencies Signed-off-by: Naman Sood <naman@tailscale.com> * Don't change hardcoded IP Signed-off-by: Naman Sood <naman@tailscale.com>	4 years ago
Brad Fitzpatrick	5aa5db89d6	cmd/tailscaled, wgengine/netstack: add start of gvisor userspace netstack work ... Not usefully functional yet (mostly a proof of concept), but getting it submitted for some work @namansood is going to do atop this. Updates #707 Updates #634 Updates #48 Updates #835	4 years ago
Brad Fitzpatrick	5efb0a8bca	cmd/tailscale: change formatting of "tailscale status" ... * show DNS name over hostname, removing domain's common MagicDNS suffix. only show hostname if there's no DNS name. but still show shared devices' MagicDNS FQDN. * remove nerdy low-level details by default: endpoints, DERP relay, public key. They're available in JSON mode still for those who need them. * only show endpoint or DERP relay when it's active with the goal of making debugging easier. (so it's easier for users to understand what's happening) The asterisks are gone. * remove Tx/Rx numbers by default for idle peers; only show them when there's traffic. * include peers' owner login names * add CLI option to not show peers (matching --self=true, --peers= also defaults to true) * sort by DNS/host name, not public key * reorder columns	4 years ago
Josh Bleecher Snyder	1271e135cd	wgengine/tstun: initialize wireguard-go TUN parameters ... This will enable us to remove the corresponding code from our fork of wireguard-go. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	56a7652dc9	wgkey: new package ... This is a replacement for the key-related parts of the wireguard-go wgcfg package. This is almost a straight copy/paste from the wgcfg package. I have slightly changed some of the exported functions and types to avoid stutter, added and tweaked some comments, and removed some now-unused code. To avoid having wireguard-go depend on this new package, wgcfg will keep its key types. We translate into and out of those types at the last minute. These few remaining uses will be eliminated alongside the rest of the wgcfg package. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Matt Layher	1a42cef3a2	cmd/tailscale*: make updatedeps ... Signed-off-by: Matt Layher <mdlayher@gmail.com>	4 years ago
Brad Fitzpatrick	d0baece5fa	go.mod: bump inet.af/netaddr to non-allocating version	4 years ago
Brad Fitzpatrick	15c064f76f	wgengine/router/dns: remove unsafe endianness detection on Linux	4 years ago
Christine Dodrill	2485faf69a	Merge branch 'main' into report-status-systemd	4 years ago
Christine Dodrill	7ea809897d	ipn/ipnserver: enable systemd-notify support ... Addresses #964 Still to be done: - Figure out the correct logging lines in util/systemd - Figure out if we need to slip the systemd.Status function anywhere else - Log util/systemd errors? (most of the errors are of the "you cannot do anything about this, but it might be a bad idea to crash the program if it errors" kind) Assistance in getting this over the finish line would help a lot. Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: rename the nonlinux file to appease the magic Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: fix package name Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: fix review feedback from @mdlayher Signed-off-by: Christine Dodrill <me@christine.website> cmd/tailscale{,d}: update depaware manifests Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: use sync.Once instead of func init Signed-off-by: Christine Dodrill <me@christine.website> control/controlclient: minor review feedback fixes Signed-off-by: Christine Dodrill <me@christine.website> {control,ipn,systemd}: fix review feedback Signed-off-by: Christine Dodrill <me@christine.website> review feedback fixes Signed-off-by: Christine Dodrill <me@christine.website> ipn: fix sprintf call Signed-off-by: Christine Dodrill <me@christine.website> ipn: make staticcheck less sad Signed-off-by: Christine Dodrill <me@christine.website> ipn: print IP address in connected status Signed-off-by: Christine Dodrill <me@christine.website> ipn: review feedback Signed-off-by: Christine Dodrill <me@christine.website> final fixups Signed-off-by: Christine Dodrill <me@christine.website>	4 years ago
Aleksandar Pesic	4749a96a5b	Update depaware.txt files. ... Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Brad Fitzpatrick	bce865b61b	logpolicy: migrate from x/crypto/ssh/terminal to x/term	4 years ago
Josh Bleecher Snyder	aa9d7f4665	tstime: add Parse3339B, for byte slices ... Use go4.org/mem for memory safety. A slight performance hit, but a huge performance win for clients who start with a []byte. The perf hit is due largely to the MapHash call, which adds ~25ns. That is necessary to keep the fast path allocation-free. name old time/op new time/op delta GoParse3339/Z-8 281ns ± 1% 283ns ± 2% ~ (p=0.366 n=9+9) GoParse3339/TZ-8 509ns ± 0% 510ns ± 1% ~ (p=0.059 n=9+9) GoParse3339InLocation-8 330ns ± 1% 330ns ± 0% ~ (p=0.802 n=10+6) Parse3339/Z-8 69.3ns ± 1% 74.4ns ± 1% +7.45% (p=0.000 n=9+10) Parse3339/TZ-8 110ns ± 1% 140ns ± 3% +27.42% (p=0.000 n=9+10) ParseInt-8 8.20ns ± 1% 8.17ns ± 1% ~ (p=0.452 n=9+9) name old alloc/op new alloc/op delta GoParse3339/Z-8 0.00B 0.00B ~ (all equal) GoParse3339/TZ-8 160B ± 0% 160B ± 0% ~ (all equal) GoParse3339InLocation-8 0.00B 0.00B ~ (all equal) Parse3339/Z-8 0.00B 0.00B ~ (all equal) Parse3339/TZ-8 0.00B 0.00B ~ (all equal) name old allocs/op new allocs/op delta GoParse3339/Z-8 0.00 0.00 ~ (all equal) GoParse3339/TZ-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) GoParse3339InLocation-8 0.00 0.00 ~ (all equal) Parse3339/Z-8 0.00 0.00 ~ (all equal) Parse3339/TZ-8 0.00 0.00 ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	8f76548fd9	tempfork/osexec: remove old fork of os/exec ... This package was a temporary fork of os/exec to fix an EINTR loop bug that was fixed upstream for Go 1.15 in 8c1db77a92 (https://go-review.googlesource.com/c/go/+/232862), in src/os/exec_unix.go: 8c1db77a92 (diff-72072cbd53a7240debad8aa506ff7ec795f9cfac7322e779f9bac29a4d0d0bd4)	4 years ago
Brad Fitzpatrick	51c8fd1dfc	logpolicy: add -race suffix to Go version when race detector in use	4 years ago
Brad Fitzpatrick	7a01cd27ca	net/netstat: remove some unsafe ... Just removing any unnecessary unsafe while auditing unsafe usage for #921.	4 years ago
Brad Fitzpatrick	45d96788b5	net/netns: remove use of unsafe on Windows ... Found while auditing unsafe for #921 via the list at: https://github.com/tailscale/tailscale/issues/921#issuecomment-727365383 No need for unsafe here, so remove it.	4 years ago
Brad Fitzpatrick	a2d78b4d3e	net/dnscache, control/controlclient: use DNS cache when dialing control ... Cache DNS results of earlier login.tailscale.com control dials, and use them for future dials if DNS is slow or broken. Fixes various issues with trickier setups with the domain's DNS server behind a subnet router. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	427bf2134f	net/packet: rename from wgengine/packet. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	ebd96bf4a9	wgengine/router/dns: use OpenKeyWait to set DNS configuration. ... Fixes tailscale/corp#839. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	7e1a146e6c	cmd/tailscaled: update depaware.txt	4 years ago
David Anderson	54e6c3a290	version: use OSS repo's version when building. ... When building with redo, also include the git commit hash from the proprietary repo, so that we have a precise commit that identifies all build info (including Go toolchain version). Add a top-level build script demonstrating to downstream distros how to burn the right information into builds. Adjust `tailscale version` to print commit hashes when available. Fixes #841. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Alex Brainman	f2ce64f0c6	wgengine/router: unfork winipcfg-go package, use upstream ... Use golang.zx2c4.com/wireguard/windows/tunnel/winipcfg instead of github.com/tailscale/winipcfg-go package. Updates #760 Signed-off-by: Alex Brainman <alex.brainman@gmail.com>	4 years ago
Josh Bleecher Snyder	a5103a4cae	all: upgrade to latest version of depaware	4 years ago
Josh Bleecher Snyder	38dda1ea9e	all: update depaware.txt ... Broken by 8051ecff55. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	8b94a769be	cmd/tailscaled: use the standard flag page instead of getopt ... Per discussion with @crawshaw. The CLI tool already used std flag anyway. If either of them, it would've made more sense for the CLI to use getopt.	4 years ago
Brad Fitzpatrick	3528d28ed1	wgengine/router: move Tailscale's winipcfg additions into wgengine/router ... Part of unforking our winipcfg-go and using upstream (#760), move our additions into our repo. (We might upstream them later if upstream has interest) Originally these were: @apenwarr: "Add ifc.SyncAddresses() and SyncRoutes()." 609dcf2df5 @bradfitz: "winipcfg: make Interface.AddRoutes do as much as possible, return combined error" e9f93d53f3 @bradfitz: "prevent unnecessary Interface.SyncAddresses work; normalize IPNets in deltaNets" decb9ee8e1	4 years ago
Christina Wen	f0e9dcdc0a	wgengine/router: restore /etc/resolv.conf after tailscale down is called ... This change is to restore /etc/resolv.conf after tailscale down is called. This is done by setting the dns.Manager before errors occur. Error collection is also added. Fixes #723	4 years ago
Brad Fitzpatrick	931bcd44cb	control/controlclient: report Synology "distro" + its version to control	4 years ago
David Anderson	8f5b52e571	net/netns: add windows support. ... Also remove rebinding logic from the windows router. Magicsock will instead rebind based on link change signals. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	4f7751e025	Update depaware for previous ipnserver change.	4 years ago
Brad Fitzpatrick	a084c44afc	wgengine, wgengine/router, cmd/tailscale: force netfilter mode off on Synology ... For now. Get it working again so it's not stuck on 0.98. Subnet relay can come later. Updates #451 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8b60936913	depaware: update deps	4 years ago
Brad Fitzpatrick	22ed3c503e	Add depaware.txt files and GitHub checks. (#745) ... See https://github.com/tailscale/depaware Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago