tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	20a5f939ba	wgengine/filter: add UDP flow benchmark To show the effects of the flow LRU accounting on e.g. QUIC traffic. For an open TCP connection: BenchmarkFilterMatch/tcp-not-syn-v4-8 66602070 16.74 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 67718179 16.60 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 68403351 16.84 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 66076416 16.87 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 67159012 16.67 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 65009526 16.58 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 66588055 16.62 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 63037071 16.58 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 69124975 21.15 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 54482922 20.41 ns/op And an open UDP connection: BenchmarkFilterMatch/udp-existing-flow-v4-8 25570020 44.09 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 26725958 46.99 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 25936412 47.11 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 25418325 45.99 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 25759848 44.73 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 25212488 46.26 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 25344370 44.55 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 26399372 45.26 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 26274159 47.51 ns/op BenchmarkFilterMatch/udp-existing-flow-v4-8 26070472 46.79 ns/op Updates #12486 Change-Id: Ica4263fb77972cf43db5a2e9433b4429506edfde Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	86e0f9b912	net/ipset, wgengine/filter/filtertype: add split-out packages This moves NewContainsIPFunc from tsaddr to new ipset package. And wgengine/filter types gets split into wgengine/filter/filtertype, so netmap (and thus the CLI, etc) doesn't need to bring in ipset, bart, etc. Then add a test making sure the CLI deps don't regress. Updates #1278 Change-Id: Ia246d6d9502bbefbdeacc4aef1bed9c8b24f54d5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	36b1b4af2f	wgengine/filter: split local+logging lookups by IPv4-vs-IPv6 If we already know it's an incoming IPv4 packet, no need to match against the set of IPv6s and vice versa. goos: darwin goarch: arm64 pkg: tailscale.com/wgengine/filter │ before │ after │ │ sec/op │ sec/op vs base │ FilterMatch/not-local-v4-8 21.40n ± 3% 16.04n ± 1% -25.09% (p=0.000 n=10) FilterMatch/not-local-v6-8 20.75n ± 9% 15.71n ± 0% -24.31% (p=0.000 n=10) FilterMatch/no-match-v4-8 81.37n ± 1% 78.57n ± 3% -3.43% (p=0.005 n=10) FilterMatch/no-match-v6-8 77.73n ± 2% 73.71n ± 3% -5.18% (p=0.002 n=10) FilterMatch/tcp-not-syn-v4-8 21.41n ± 3% 16.86n ± 0% -21.25% (p=0.000 n=10) FilterMatch/tcp-not-syn-v4-no-logs-8 10.04n ± 0% 10.05n ± 0% ~ (p=0.446 n=10) geomean 29.07n 25.05n -13.84% Updates #12486 Change-Id: I70e5024af03893327d26629a994ab2aa9811f4f3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	d4220a76da	wgengine/filter: add TCP non-SYN benchmarks To show performance during heavy flows on established connections. BenchmarkFilterMatch/tcp-not-syn-v4-8 52125848 21.46 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 52388781 21.43 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 52916954 21.32 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 52590730 21.43 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-8 53015923 21.32 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-no-logs-8 122795029 9.783 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-no-logs-8 100000000 10.09 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-no-logs-8 120090948 9.747 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-no-logs-8 122350448 10.55 ns/op BenchmarkFilterMatch/tcp-not-syn-v4-no-logs-8 122943025 9.813 ns/op Updates #12486 Change-Id: I8e7c9380bf969ad646851d53f8a4c287717694ea Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	10e8a2a05c	wgengine/filter: fix copy/pasteo in new benchmark's v6 CIDR I noticed the not-local-v6 numbers were nowhere near the v4 numbers (they should be identical) and then saw this. It meant the Addr().Next() wasn't picking an IP that was no longer local, as assumed. Updates #12486 Change-Id: I18dfb641f00c74c6252666bc41bd2248df15fadd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	7574f586aa	wgengine/filter: add more benchmarks, make names more explicit Updates #12486 Change-Id: If2e6d9c70212644eb4a0bc8ec6768512894a646a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	21ed31e33a	wgengine/filter: use NewContainsIPFunc for Srcs matches NewContainsIPFunc returns a contains matcher optimized for its input. Use that instead of what this did before, always doing a test over each of a list of netip.Prefixes. goos: darwin goarch: arm64 pkg: tailscale.com/wgengine/filter │ before │ after │ │ sec/op │ sec/op vs base │ FilterMatch/file1-8 32.60n ± 1% 18.87n ± 1% -42.12% (p=0.000 n=10) Updates #12486 Change-Id: I8f902bc064effb431e5b46751115942104ff6531 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	e2c0d69c9c	wgengine/filter: add filter benchmark Baseline, on 2020 M1 Macbook Pro, on power: goos: darwin goarch: arm64 pkg: tailscale.com/wgengine/filter BenchmarkFilterMatch/file1-8 34089133 32.79 ns/op BenchmarkFilterMatch/file1-8 35423917 32.59 ns/op BenchmarkFilterMatch/file1-8 35208598 32.80 ns/op BenchmarkFilterMatch/file1-8 35180470 33.39 ns/op BenchmarkFilterMatch/file1-8 36671608 32.82 ns/op BenchmarkFilterMatch/file1-8 35435991 33.13 ns/op BenchmarkFilterMatch/file1-8 34689181 33.29 ns/op BenchmarkFilterMatch/file1-8 34786053 32.94 ns/op BenchmarkFilterMatch/file1-8 35366235 32.56 ns/op BenchmarkFilterMatch/file1-8 35342799 32.47 ns/op Updates #12486 Change-Id: I8f902bc064effb431e5b46751115942104ff6531 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 months ago
Brad Fitzpatrick	7c1d6e35a5	all: use Go 1.22 range-over-int Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Andrew Lytvynov	263e01c47b	wgengine/filter: add protocol-agnostic packet checker (#10446 ) For use in ACL tests, we need a way to check whether a packet is allowed not just with TCP, but any protocol. Updates #3561 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	12 months ago
Brad Fitzpatrick	8b630c91bc	wgengine/filter: use slices.Contains in another place We keep finding these. Updates #cleanup Change-Id: Iabc049b0f8da07341011356f0ecd5315c33ff548 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
James Tucker	324f0d5f80	cmd/cloner,*: revert: optimize nillable slice cloner This reverts commit `ee90cd02fd`. The outcome is not identical for empty slices. Cloner really needs tests! Updates #9601 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
James Tucker	ee90cd02fd	cmd/cloner,*: optimize nillable slice cloner A wild @josharian appears with a good suggestion for a refactor, thanks Josh! Updates #9410 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Maisem Ali	d06b48dd0a	tailcfg: add RawMessage This adds a new RawMessage type backed by string instead of the json.RawMessage which is backed by []byte. The byte slice makes the generated views be a lot more defensive than the need to be which we can get around by using a string instead. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	a61caea911	tailcfg: define a type for NodeCapability Instead of untyped string, add a type to identify these. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
James Tucker	1858ad65c8	cmd/cloner: do not allocate slices when the source is nil tailcfg.Node zero-value clone equality checks failed when I added a []*foo to the structure, as the zero value and it's clone contained a different slice header. Updates #9377 Updates #9408 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Brad Fitzpatrick	bc0eb6b914	all: import x/exp/maps as xmaps to distinguish from Go 1.21 "maps" Updates #8419 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	e8551d6b40	all: use Go 1.21 slices, maps instead of x/exp/{slices,maps} Updates #8419 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Maisem Ali	1ecc16da5f	tailcfg,ipn/ipnlocal,wgengine: add values to PeerCapabilities Define PeerCapabilty and PeerCapMap as the new way of sending down inter-peer capability information. Previously, this was unstructured and you could only send down strings which got too limiting for certain usecases. Instead add the ability to send down raw JSON messages that are opaque to Tailscale but provide the applications to define them however they wish. Also update accessors to use the new values. Updates #4217 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	1a30b2d73f	all: use tstest.Replace more Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Will Norris	71029cea2d	all: update copyright and license headers This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Brad Fitzpatrick	c1a2e2c380	net/{packet,tstun},wgengine/filter: fix unknown IP protocol handling `01b90df2fa` added SCTP support before (with explicit parsing for ports) and `69de3bf7bf` tried to add support for arbitrary IP protocols (as long as the ACL permited a port of "", since we might not know how to find ports from an arbitrary IP protocol, if it even has such a concept). But apparently that latter commit wasn't tested end-to-end enough. It had a lot of tests, but the tests made assumptions about layering that either weren't true, or regressed since 1.20. Notably, it didn't remove the (Filter).pre bidirectional filter that dropped all "unknown" protocol packets both leaving and entering, even if there were explicit protocol matches allowing them in. Also, don't map all unknown protocols to 0. Keep their IP protocol number parsed so it's matchable by later layers. Only reject illegal things. Fixes #6423 Updates #2162 Updates #2163 Change-Id: I9659b3ece86f4db51d644f9b34df78821758842c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	3386a59cf1	wgengine/filter: include IP proto number in unknown protocol errors Updates #6423 Change-Id: I9e363922e2c24fdc42687707c069af5bba68b93e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	006ec659e6	wgengine/filter: reorder RunOut disjunctive cases to match RunIn above Change-Id: Ia422121cde1687044b18be7bea9e7bf51a4183b9 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	2ac5474be1	net/flowtrack,wgengine/filter: refactor Cache to use generics Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	aad6830df0	util/codegen, all: use latest year, not time.Now, in generated files Updates #6865 Change-Id: I6b86c646968ebbd4553cf37df5e5612fbf5c5f7d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Josh Soref	d4811f11a0	all: fix spelling mistakes Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>	2 years ago
Brad Fitzpatrick	8725b14056	all: migrate more code code to net/netip directly Instead of going through the tailscale.com/net/netaddr transitional wrappers. Updates #5162 Change-Id: I3dafd1c2effa1a6caa9b7151ecf6edd1a3fda3dd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	116f55ff66	all: gofmt for Go 1.19 Updates #5210 Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	a12aad6b47	all: convert more code to use net/netip directly perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.) perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. ) goimports -w . Then delete some stuff from the net/netaddr shim package which is no longer neeed. Updates #5162 Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	6a396731eb	all: use various net/netip parse funcs directly Mechanical change with perl+goimports. Changed {Must,}Parse{IP,IPPrefix,IPPort} to their netip variants, then goimports -d . Finally, removed the net/netaddr wrappers, to prevent future use. Updates #5162 Change-Id: I59c0e38b5fbca5a935d701645789cddf3d7863ad Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	7eaf5e509f	net/netaddr: start migrating to net/netip via new netaddr adapter package Updates #5162 Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom	9343967317	wgengine/filter: preallocate some hot slices in MatchesFromFilterRules (#4672 ) Profiling identified this as a fairly hot path for growing a slice. Given this is only used in control & when a new packet filter is received, this shouldnt be hot in the client.	3 years ago
Maisem Ali	e409e59a54	cmd/cloner,util/codegen: refactor cloner internals to allow reuse Also run go generate again for Copyright updates. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	16f3520089	all: add arbitrary capability support Updates #4217 RELNOTE=start of WhoIsResponse capability support Change-Id: I6522998a911fe49e2f003077dad6164c017eed9b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	f2041c9088	all: use strings.Cut even more Change-Id: I943ce72c6f339589235bddbe10d07799c4e37979 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	0868329936	all: use any instead of interface{} My favorite part of generics. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	61ee72940c	all: use Go 1.18's strings.Cut More remain. Change-Id: I6ec562cc1f687600758deae1c9d7dbd0d04004cb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
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	69de3bf7bf	wgengine/filter: let unknown IPProto match if IP okay & match allows all ports RELNOTE=yes Change-Id: I96eaf3cf550cee7bb6cdb4ad81fc761e280a1b2a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ff9727c9ff	wgengine/filter: fix, test NewAllowAllForTest I probably broke it when SCTP support was added but nothing apparently ever used NewAllowAllForTest so it wasn't noticed when it broke. Change-Id: Ib5a405be233d53cb7fcc61d493ae7aa2d1d590a2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	94fb42d4b2	all: use testingutil.MinAllocsPerRun There are a few remaining uses of testing.AllocsPerRun: Two in which we only log the number of allocations, and one in which dynamically calculate the allocations target based on a different AllocsPerRun run. This also allows us to tighten the "no allocs" test in wgengine/filter. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Joe Tsai	9af27ba829	cmd/cloner: mangle "go:generate" in cloner.go The "go generate" command blindly looks for "//go:generate" anywhere in the file regardless of whether it is truly a comment. Prevent this false positive in cloner.go by mangling the string to look less like "//go:generate". Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Josh Bleecher Snyder	d5ab18b2e6	cmd/cloner: add Clone context to regen struct assignments Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	4bbf5a8636	cmd/cloner: reduce diff noise when changing command Spelling out the command to run for every type means that changing the command makes for a large, repetitive diff. Stop doing that. Signed-off-by: Josh Bleecher Snyder <josh@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
Christine Dodrill	59e9b44f53	wgengine/filter: add a debug flag for filter logs (#2241 ) This uses a debug envvar to optionally disable filter logging rate limits by setting the environment variable TS_DEBUG_FILTER_RATE_LIMIT_LOGS to "all", and if it matches, the code will effectively disable the limits on the log rate by setting the limit to 1 millisecond. This should make sure that all filter logs will be captured. Signed-off-by: Christine Dodrill <xe@tailscale.com>	3 years ago
Brad Fitzpatrick	a321c24667	go.mod: update netaddr Involves minor IPSetBuilder.Set API change. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 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
Brad Fitzpatrick	2384c112c9	net/packet, wgengine/{filter,tstun}: add TSMP ping Fixes #1467 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago

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106 Commits (87c5ad4c2c0e108e0c66cdb95f75ae5a5da72e31)