tailscale

Commit Graph

Author	SHA1	Message	Date
Marwan Sulaiman	e32e5c0d0c	portlist: add Poller.IncludeLocalhost option This PR parameterizes receiving loopback updates from the portlist package. Callers can now include services bound to localhost if they want. Note that this option is off by default still. Fixes #8171 Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>	1 year 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>	1 year ago
Aaron Klotz	296f53524c	netstat, portlist: update Windows implementation to disambiguate svchost processes We change our invocations of GetExtendedTcpTable to request additional information about the "module" responsible for the port. In addition to pid, this output also includes sufficient metadata to enable Windows to resolve process names and disambiguate svchost processes. We store the OS-specific output in an OSMetadata field in netstat.Entry, which portlist may then use as necessary to actually resolve the process/module name. Signed-off-by: Aaron Klotz <aaron@tailscale.com>	1 year ago
Brad Fitzpatrick	21ef7e5c35	portlist: add macOS osImpl, finish migration to new style Previously: * `036f70b7b4` for linux * `35bee36549` for windows This does macOS. And removes all the compat code for the old style. (e.g. iOS, js are no longer mentioned; all platforms without implementations just default to not doing anything) One possible regression is that platforms without explicit implementations previously tried to do the "netstat -na" style to get open ports (but not process names). Maybe that worked on FreeBSD and OpenBSD previously, but nobody ever really tested it. And it was kinda useless without associated process names. So better off removing those for now until they get a good implementation. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	35bee36549	portlist: use win32 calls instead of running netstat process [windows] Turns out using win32 instead of shelling out to child processes is a bit faster: name old time/op new time/op delta GetListIncremental-4 278ms ± 2% 0ms ± 7% -99.93% (p=0.000 n=8+10) name old alloc/op new alloc/op delta GetListIncremental-4 238kB ± 0% 9kB ± 0% -96.12% (p=0.000 n=10+8) name old allocs/op new allocs/op delta GetListIncremental-4 1.19k ± 0% 0.02k ± 0% -98.49% (p=0.000 n=10+10) Fixes #3876 (sadly) Change-Id: I1195ac5de21a8a8b3cdace5871d263e81aa27e91 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	46ce80758d	portlist: update some internals to use append-style APIs In prep for reducing garbage, being able to reuse memory. So far this doesn't actually reuse much. This is just changing signatures around. But some improvement in any case: bradfitz@tsdev:~/src/tailscale.com$ ~/go/bin/benchstat before after name old time/op new time/op delta GetList-8 11.8ms ± 9% 9.9ms ± 3% -15.98% (p=0.000 n=10+10) name old alloc/op new alloc/op delta GetList-8 99.5kB ± 2% 91.9kB ± 0% -7.62% (p=0.000 n=9+9) name old allocs/op new allocs/op delta GetList-8 3.05k ± 1% 2.93k ± 0% -3.83% (p=0.000 n=8+9) More later, once parsers can reuse strings from previous parses. Updates #5958 Change-Id: I76cd5048246dd24d11c4e263d8bb8041747fb2b0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
David Crawshaw	297b3d6fa4	staticcheck.conf: turn off noisy lint errors Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Josh Bleecher Snyder	bfd2b71926	portlist: suppress staticcheck error Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	3 years ago
Brad Fitzpatrick	c0befee188	portlist: use windows OpenCurrentProcessToken, not GetCurrentProcessToken The latter only works on Windows 8+. Also add a TODO to get do this all more efficiently. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 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	4a92fc9dc5	portlist: fix tests on Windows when not running as Administrator Updates #50	4 years ago
Brad Fitzpatrick	2ca2389c5f	portlist: set SysProcAttr.HideWindow on Windows Prevents annoying shell window flashes when running /server by hand.	4 years ago
David Anderson	9396024bd7	portlist: move code around to avoid unused function warnings.	4 years ago
Brad Fitzpatrick	120273d7f6	portlist: document, clean up, fix an open fd spike, optimize a bit I noticed portlist when looking at some profiles and hadn't looked at the code much before. This is a first pass over it. It allocates a fair bit. More love remains, but this does a bit: name old time/op new time/op delta GetList-8 9.92ms ± 8% 9.64ms ±12% ~ (p=0.247 n=10+10) name old alloc/op new alloc/op delta GetList-8 931kB ± 0% 869kB ± 0% -6.70% (p=0.000 n=10+10) name old allocs/op new allocs/op delta GetList-8 4.59k ± 0% 3.69k ± 1% -19.71% (p=0.000 n=10+10) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Earl Lee	a8d8b8719a	Move Linux client & common packages into a public repo.	4 years ago

15 Commits (main)