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path: root/hostinfo/hostinfo_linux.go
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2026-03-06all: use Go 1.26 things, run most gofix modernizersBrad Fitzpatrick1-4/+4
I omitted a lot of the min/max modernizers because they didn't result in more clear code. Some of it's older "for x := range 123". Also: errors.AsType, any, fmt.Appendf, etc. Updates #18682 Change-Id: I83a451577f33877f962766a5b65ce86f7696471c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-03-05types/ptr: deprecate ptr.To, use Go 1.26 newBrad Fitzpatrick1-3/+2
Updates #18682 Change-Id: I62f6aa0de2a15ef8c1435032c6aa74a181c25f8f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-01-23all: remove AUTHORS file and references to itWill Norris1-1/+1
This file was never truly necessary and has never actually been used in the history of Tailscale's open source releases. A Brief History of AUTHORS files --- The AUTHORS file was a pattern developed at Google, originally for Chromium, then adopted by Go and a bunch of other projects. The problem was that Chromium originally had a copyright line only recognizing Google as the copyright holder. Because Google (and most open source projects) do not require copyright assignemnt for contributions, each contributor maintains their copyright. Some large corporate contributors then tried to add their own name to the copyright line in the LICENSE file or in file headers. This quickly becomes unwieldy, and puts a tremendous burden on anyone building on top of Chromium, since the license requires that they keep all copyright lines intact. The compromise was to create an AUTHORS file that would list all of the copyright holders. The LICENSE file and source file headers would then include that list by reference, listing the copyright holder as "The Chromium Authors". This also become cumbersome to simply keep the file up to date with a high rate of new contributors. Plus it's not always obvious who the copyright holder is. Sometimes it is the individual making the contribution, but many times it may be their employer. There is no way for the proejct maintainer to know. Eventually, Google changed their policy to no longer recommend trying to keep the AUTHORS file up to date proactively, and instead to only add to it when requested: https://opensource.google/docs/releasing/authors. They are also clear that: > Adding contributors to the AUTHORS file is entirely within the > project's discretion and has no implications for copyright ownership. It was primarily added to appease a small number of large contributors that insisted that they be recognized as copyright holders (which was entirely their right to do). But it's not truly necessary, and not even the most accurate way of identifying contributors and/or copyright holders. In practice, we've never added anyone to our AUTHORS file. It only lists Tailscale, so it's not really serving any purpose. It also causes confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header in other open source repos which don't actually have an AUTHORS file, so it's ambiguous what that means. Instead, we just acknowledge that the contributors to Tailscale (whoever they are) are copyright holders for their individual contributions. We also have the benefit of using the DCO (developercertificate.org) which provides some additional certification of their right to make the contribution. The source file changes were purely mechanical with: git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g' Updates #cleanup Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d Signed-off-by: Will Norris <will@tailscale.com>
2024-11-05types/result, util/lineiter: add package for a result type, use itBrad Fitzpatrick1-5/+8
This adds a new generic result type (motivated by golang/go#70084) to try it out, and uses it in the new lineutil package (replacing the old lineread package), changing that package to return iterators: sometimes over []byte (when the input is all in memory), but sometimes iterators over results of []byte, if errors might happen at runtime. Updates #12912 Updates golang/go#70084 Change-Id: Iacdc1070e661b5fb163907b1e8b07ac7d51d3f83 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-07-17hostinfo: set Hostinfo.PackageType for mkctr container buildsBrad Fitzpatrick1-0/+7
Fixes tailscale/corp#21448 Change-Id: Id60fb5cd7d31ef94cdbb176141e034845a480a00 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-04-02hostinfo: cache device model to speed up initKyle Carberry1-4/+2
This was causing a relatively consistent ~10ms of delay on Linux. Signed-off-by: Kyle Carberry <kyle@carberry.com>
2023-05-04various: add detection and Taildrop for UnraidDerek Kaser1-0/+4
Updates tailscale/tailscale#8025 Signed-off-by: Derek Kaser <derek.kaser@gmail.com>
2023-02-01all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our forkBrad Fitzpatrick1-2/+1
Updates #7123 Updates #5309 Change-Id: I90bcd87a2fb85a91834a0dd4be6e03db08438672 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-27all: update copyright and license headersWill Norris1-3/+2
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>
2022-11-30types/ptr: move all the ptrTo funcs to one new package's ptr.ToBrad Fitzpatrick1-2/+3
Change-Id: Ia0b820ffe7aa72897515f19bd415204b6fe743c7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-04all: remove old +build tagsBrad Fitzpatrick1-1/+0
The //go:build syntax was introduced in Go 1.17: https://go.dev/doc/go1.17#build-lines gofmt has kept the +build and go:build lines in sync since then, but enough time has passed. Time to remove them. Done with: perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build') Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-15refactor: move from io/ioutil to io and os packagesEng Zer Jun1-5/+4
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Reference: https://golang.org/doc/go1.16#ioutil Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-09-11hostinfo, tailcfg: split Hostinfo.OSVersion into separate fieldsBrad Fitzpatrick1-38/+66
Stop jamming everything into one string. Fixes #5578 Change-Id: I7dec8d6c073bddc7dc5f653e3baf2b4bf6b68378 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-05hostinfo, net/netcheck: use CutPrefixBrad Fitzpatrick1-1/+2
Updates #5309 Change-Id: I37e594cfd245784bf810c493de68a66d3ff20677 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-22hostinfo: determine QNAP QTS versionDenton Gentry1-0/+13
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-06-05hostinfo,distro: Identify Western Digital MyCloud devices.Denton Gentry1-0/+4
root@WDMyCloud HD_a2 # ./tailscale debug hostinfo { "IPNVersion": "1.25.0-dev20220605-t7fea52e02", "OS": "linux", "OSVersion": "5.22.113", "Desktop": false, "DeviceModel": "WD My Cloud Gen2: Marvell Armada 375", "Hostname": "WDMyCloud", "GoArch": "arm" } Updates https://github.com/tailscale/tailscale/issues/4622 Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-06-01hostinfo: use ByteSliceToString from golang.org/x/sys/unixTobias Klauser1-6/+2
Use unix.ByteSliceToString in osVersionFreebsd and osVersionLinux to convert the Utsname.Release []byte field to string. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2022-06-01hostinfo: use Uname from golang.org/x/sys/unix in osVersionLinuxTobias Klauser1-3/+2
As already done in osVersionFreebsd. This will allow to use the Utsname fields as []byte for easier conversion to string. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2022-03-01version, hostinfo: recognize gokrazy as a distroBrad Fitzpatrick1-0/+2
Now: /tmp/breakglass3929186798 # /user/tailscale debug hostinfo { "IPNVersion": "1.23.0-date.20220107", "OS": "linux", "OSVersion": "Gokrazy; kernel=5.16.11", "DeviceModel": "Raspberry Pi 4 Model B Rev 1.2", "Hostname": "gokrazy", "GoArch": "arm64" } Also, cache the distro lookup. It doesn't change while the program is running: name old time/op new time/op delta Get-6 5.21µs ± 5% 0.00µs ± 3% -99.91% (p=0.008 n=5+5) name old alloc/op new alloc/op delta Get-6 792B ± 0% 0B -100.00% (p=0.008 n=5+5) name old allocs/op new allocs/op delta Get-6 8.00 ± 0% 0.00 -100.00% (p=0.008 n=5+5) Updates #1866 Change-Id: Ifb9a63b94287010d3f4c8bfeb6b78119e8a9b203 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-22hostinfo: move packageType out to platform-specific filesBrad Fitzpatrick1-0/+11
Change-Id: I3236b3d4e2376dd7e2482c2562817b1b6f44872e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-10-04hostinfo: look up Synology hardware a more specific wayBrad Fitzpatrick1-4/+21
Fixes #2991 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-22hostinfo: set DeviceModel from Linux devicetree modelBrad Fitzpatrick1-0/+7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-22hostinfo: fix earlier git fail, add files lost in moveBrad Fitzpatrick1-0/+93
This was meant to be part of 47045265b9b340418fbfe08e50297dc875e54ce9 which instead deleted them :( Updates tailscale/corp#1959
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