tailscale

Commit Graph

Author	SHA1	Message	Date
Maisem Ali	1cff719015	net/dns: [win] respond with SERVFAIL queries when no resolvers Currently we forward unmatched queries to the default resolver on Windows. This results in duplicate queries being issued to the same resolver which is just wasted. Updates #1659 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Joe Tsai	548fa63e49	util/deephash: use binary encoding of time.Time (#5352 ) Formatting a time.Time as RFC3339 is slow. See https://go.dev/issue/54093 Now that we have efficient hashing of fixed-width integers, just hash the time.Time as a binary value. Performance: Hash-24 19.0µs ± 1% 18.6µs ± 1% -2.03% (p=0.000 n=10+9) TailcfgNode-24 1.79µs ± 1% 1.40µs ± 1% -21.74% (p=0.000 n=10+9) Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Brad Fitzpatrick	0476c8ebc6	.github/workflows: delete flaky windows-race.yml It flakes more often than it runs. It provides no value and builds failure blindness, making people get used to submitting on red. Bye. Change-Id: If5491c70737b4c9851c103733b1855af2a90a9e9 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Joe Tsai	1f7479466e	util/deephash: use sha256x (#5339 ) Switch deephash to use sha256x.Hash. We add sha256x.HashString to efficiently hash a string. It uses unsafe under the hood to convert a string to a []byte. We also modify sha256x.Hash to export the underlying hash.Hash for testing purposes so that we can intercept all hash.Hash calls. Performance: name old time/op new time/op delta Hash-24 19.8µs ± 1% 19.2µs ± 1% -3.01% (p=0.000 n=10+10) HashPacketFilter-24 2.61µs ± 0% 2.53µs ± 1% -3.01% (p=0.000 n=8+10) HashMapAcyclic-24 31.3µs ± 1% 29.8µs ± 0% -4.80% (p=0.000 n=10+9) TailcfgNode-24 1.83µs ± 1% 1.82µs ± 2% ~ (p=0.305 n=10+10) HashArray-24 344ns ± 2% 323ns ± 1% -6.02% (p=0.000 n=9+10) The performance gains is not as dramatic as sha256x over sha256 due to: 1. most of the hashing already occurring through the direct memory hashing logic, and 2. what does not go through direct memory hashing is slowed down by reflect. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Andrew Dunham	d942a2ff56	net/dnscache: try IPv6 addresses first (#5349 ) Signed-off-by: Andrew Dunham <andrew@tailscale.com> Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Brad Fitzpatrick	90555c5cb2	tailcfg, control/controlclient: add PingRequest.URLIsNoise [capver 38] Change-Id: I19bb63b6d99e96b2f9fd2c440afcc31d38137ded Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	b33c337baa	tailcfg: actually bump capver to 37, add test I documented capver 37 in `4ee64681a` but forgot to bump the actual constant. I've done this previously too, so add a test to prevent it from happening again. Change-Id: I6f7659db1243d30672121a384beb386d9f9f5b98 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Joe Tsai	77a92f326d	util/deephash: avoid using sync.Pool for reflect.MapIter (#5333 ) In Go 1.19, the reflect.Value.MapRange method uses "function outlining" so that the allocation of reflect.MapIter is inlinable by the caller. If the iterator doesn't escape the caller, it can be stack allocated. See https://go.dev/cl/400675 Performance: name old time/op new time/op delta HashMapAcyclic-24 31.9µs ± 2% 32.1µs ± 1% ~ (p=0.075 n=10+10) name old alloc/op new alloc/op delta HashMapAcyclic-24 0.00B 0.00B ~ (all equal) Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Denton Gentry	5d731ca13f	installer.sh: add manjaro-arm & EndeavourOS. Fixes https://github.com/tailscale/tailscale/issues/5192 Fixes https://github.com/tailscale/tailscale/issues/5284 Signed-off-by: Denton Gentry <dgentry@tailscale.com>	2 years ago
Joe Tsai	1c3c6b5382	util/sha256x: make Hash.Sum non-escaping (#5338 ) Since Hash is a concrete type, we can make it such that Sum never escapes the input. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Joe Tsai	76b0e578c5	util/sha256x: new package (#5337 ) The hash.Hash provided by sha256.New is much more efficient if we always provide it with data a multiple of the block size. This avoids double-copying of data into the internal block of sha256.digest.x. Effectively, we are managing a block ourselves to ensure we only ever call hash.Hash.Write with full blocks. Performance: name old time/op new time/op delta Hash 33.5µs ± 1% 20.6µs ± 1% -38.40% (p=0.000 n=10+9) The logic has gone through CPU-hours of fuzzing. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Brad Fitzpatrick	090033ede5	cmd/derper: fix data race & server panic in manual cert mode (Thanks for debugging, Roland!) Fixes #4082 Change-Id: I400a64001c3c58899bb570b759b08e745abc0be1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
dependabot[bot]	9996d94b3c	build(deps): bump github.com/u-root/u-root from 0.8.0 to 0.9.0 Bumps [github.com/u-root/u-root](https://github.com/u-root/u-root) from 0.8.0 to 0.9.0. - [Release notes](https://github.com/u-root/u-root/releases) - [Changelog](https://github.com/u-root/u-root/blob/main/RELEASES) - [Commits](https://github.com/u-root/u-root/compare/v0.8.0...v0.9.0) --- updated-dependencies: - dependency-name: github.com/u-root/u-root dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>	2 years ago
Brad Fitzpatrick	c8dd39fcbc	.github/workflows: use a matrix for staticcheck GOOS/GOARCHes Change-Id: Ic4eda169729117afc4031bbefbe265195b38c19b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Joe Tsai	539c5e44c5	util/deephash: always keep values addressable (#5328 ) The logic of deephash is both simpler and easier to reason about if values are always addressable. In Go, the composite kinds are slices, arrays, maps, structs, interfaces, pointers, channels, and functions, where we define "composite" as a Go value that encapsulates some other Go value (e.g., a map is a collection of key-value entries). In the cases of pointers and slices, the sub-values are always addressable. In the cases of arrays and structs, the sub-values are always addressable if and only if the parent value is addressable. In the case of maps and interfaces, the sub-values are never addressable. To make them addressable, we need to copy them onto the heap. For the purposes of deephash, we do not care about channels and functions. For all non-composite kinds (e.g., strings and ints), they are only addressable if obtained from one of the composite kinds that produce addressable values (i.e., pointers, slices, addressable arrays, and addressable structs). A non-addressible, non-composite kind can be made addressable by allocating it on the heap, obtaining a pointer to it, and dereferencing it. Thus, if we can ensure that values are addressable at the entry points, and shallow copy sub-values whenever we encounter an interface or map, then we can ensure that all values are always addressable and assume such property throughout all the logic. Performance: name old time/op new time/op delta Hash-24 21.5µs ± 1% 19.7µs ± 1% -8.29% (p=0.000 n=9+9) HashPacketFilter-24 2.61µs ± 1% 2.62µs ± 0% +0.29% (p=0.037 n=10+9) HashMapAcyclic-24 30.8µs ± 1% 30.9µs ± 1% ~ (p=0.400 n=9+10) TailcfgNode-24 1.84µs ± 1% 1.84µs ± 2% ~ (p=0.928 n=10+10) HashArray-24 324ns ± 2% 332ns ± 2% +2.45% (p=0.000 n=10+10) Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Brad Fitzpatrick	4ee64681ad	tailcfg, control/controlclient: make Debug settings sticky in a map session [capver 37] Fixes #4843 Change-Id: I3accfd91be474ac745cb47f5d6e866c37d5c5d2d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	8e821d7aa8	types/opt: support an explicit "unset" value for Bool Updates #4843 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	3bb57504af	net/dns/resolver: add comments clarifying nil error returns Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	4497bb0b81	net/dns/resolver: return SERVFAIL when no upstream resolvers set Otherwise we just keep looping over the same thing again and again. ``` dns udp query: upstream nameservers not set dns udp query: upstream nameservers not set dns udp query: upstream nameservers not set ``` Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Charlotte Brandhorst-Satzkorn	0f12ead567	tsconnect: pass in authkey in dev mode (#5320 ) This change allows for an auth key to be specified as a url query param for use in development mode. If an auth key is specified and valid, it will authorize the client for use immediately. Updates #5144 Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	2 years ago
Mihai Parparita	ab159f748b	cmd/tsconnect: switch UI to Preact Reduces the amount of boilerplate to render the UI and makes it easier to respond to state changes (e.g. machine getting authorized, netmap changing, etc.) Preact adds ~13K to our bundle size (5K after Brotli) thus is a neglibible size contribution. We mitigate the delay in rendering the UI by having a static placeholder in the HTML. Required bumping the esbuild version to pick up evanw/esbuild#2349, which makes it easier to support Preact's JSX code generation. Fixes #5137 Fixes #5273 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
David Crawshaw	15b8665787	tka: stable text representation of AUMHash This makes debugging easier, you can pass an AUMHash to a printf and get a string that is easy to debug. Also rearrange how directories/files work in the FS store: use the first two characters of the string representation as the prefix directory, and use the entire AUMHash string as the file name. This is again to aid debugging: you can `ls` a directory and line up what prints out easily with what you get from a printf in debug code. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	2 years ago
Maisem Ali	40ec8617ac	util/must: rename Do->Get, add Do Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	ec9d13bce5	hostinfo, net/netcheck: use CutPrefix Updates #5309 Change-Id: I37e594cfd245784bf810c493de68a66d3ff20677 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	01e8ef7293	util/strs: add new package for string utility funcs Updates #5309 Change-Id: I677cc6e01050b6e10d8d6907d961b11c7a787a05 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Joe Tsai	622d80c007	util/must: new package (#5307 ) The Do function assists in calling functions that must succeed. It only interacts well with functions that return (T, err). Signatures with more return arguments are not supported. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Maisem Ali	486cc9393c	ipn/ipnlocal: fix log about local IPs when using exit nodes Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
David Crawshaw	93324cc7b3	cmd/derper: add depaware.txt Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	2 years ago
Brad Fitzpatrick	18109c63b0	net/socks5: use new Go 1.19 binary.AppendByteOrder.AppendUintX Updates #4872 Change-Id: I43db63d2ba237324bc1cd87d4261197f14cb1088 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Joe Tsai	b1fff4499f	tsnet: cleanup resources upon start failure (#5301 ) In a partially initialized state, we should cleanup all prior resources when an error occurs. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Andrew Dunham	f0d6f173c9	net/netcheck: try ICMP if UDP is blocked (#5056 ) Signed-off-by: Andrew Dunham <andrew@du.nham.ca>	2 years ago
Joe Tsai	ddebd30917	tsnet: fix closing of filch buffer (#5299 ) It should be safe to initialize multiple Server instances without any resource leaks what-so-ever. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Tom DNetto	f50043f6cb	tka,types/key: remove dependency for tailcfg & types/ packages on tka Following the pattern elsewhere, we create a new tka-specific types package for the types that need to couple between the serialized structure types, and tka. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Maisem Ali	a9f6cd41fd	all: use syncs.AtomicValue Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	b75f81ec00	syncs: add generic AtomicValue Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Charlotte Brandhorst-Satzkorn	5055e00cf1	tsconnect: add flag to specify control server (#5294 ) To improve the local development experience, this change allows a control url to be passed in with the `--dev-control=` flag. If the flag is passed in when not specifying dev, an error is returned. If no flag is passed, the default remains the Tailscale controlled control server set by `ipn.DefaultControlURL`. Co-authored-by: Maisem Ali <maisem@tailscale.com> Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	2 years ago
Mihai Parparita	f371a1afd9	cmd/tsconnect: make logtail uploading work Initialize logtail and provide an uploader that works in the browser (we make a no-cors cross-origin request to avoid having to open up the logcatcher servers to CORS). Fixes #5147 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Brad Fitzpatrick	4950fe60bd	syncs, all: move to using Go's new atomic types instead of ours Fixes #5185 Change-Id: I850dd532559af78c3895e2924f8237ccc328449d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	9bb5a038e5	all: use atomic.Pointer Also add some missing docs. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	5381437664	logtail, net/portmapper, wgengine/magicsock: use fmt.Appendf Fixes #5206 Change-Id: I490bb92e774ce7c044040537e2cd864fcf1dbe5a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Mihai Parparita	4aa88bc2c0	cmd/tsconnect,util/precompress: move precompression to its own package We have very similar code in corp, moving it to util/precompress allows it to be reused. Updates #5133 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Mihai Parparita	dfcef3382e	cmd/tsconnect: add README with instructions Outlines basic development, build and serving workflows. Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Brad Fitzpatrick	9e5954c598	control/controlclient: fix crash in tests elsewhere when GetNLPublicKey is nil `4001d0bf25` caused tests in another repo to fail with a crash, calling a nil func. This might not be the right fix, but fixes the build. Change-Id: I67263f883c298f307abdd22bc2a30b3393f062e6 Co-authored-by: Maisem Ali <maisem@tailscale.com> Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	8cfd775885	tka,types/key: implement direct node-key signatures Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	c13fab2a67	tka: add attack-scenario unit tests, defensive checks, resolve TODOs Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	4001d0bf25	assorted: plumb tka initialization & network-lock key into tailscaled - A network-lock key is generated if it doesn't already exist, and stored in the StateStore. The public component is communicated to control during registration. - If TKA state exists on the filesystem, a tailnet key authority is initialized (but nothing is done with it for now). Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	8d45d7e312	types/key: make NLPublic complement to NLPrivate Forgot that I would need that in control. Oops. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Maisem Ali	be5eadbecc	tsnet: log out ephemeral nodes on Close() Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	95d43c54bf	cmd/{cloner,viewer}: add support for map values with pointers Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	26f103473c	cmd/viewer: add support for map of structs without pointers This adds support for fields like `map[string]netaddr.IPPrefix`. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago

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