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2024-07-10all: add test for package comments, fix, add comments as neededBrad Fitzpatrick1-1/+0
Updates #cleanup Change-Id: Ic4304e909d2131a95a38b26911f49e7b1729aaef Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-02-02net/{netns,netstat}: use new x/sys/cpu.IsBigEndianBrad Fitzpatrick1-3/+3
See golang/go#57237 Change-Id: If47ab6de7c1610998a5808e945c4177c561eab45 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-27all: update copyright and license headersWill Norris4-12/+8
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>
2023-01-27net/netstat: document the Windows netstat code a bit moreBrad Fitzpatrick1-8/+29
And defensively bound allocation. Updates tailscale/corp#8878 Change-Id: Iaa07479ea2ea28ee1ac3326ab025046d6d785b00 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-27net/netstat: add nil checks to Windows OSMetadata implementationAaron Klotz1-0/+7
The API documentation does claim to output empty strings under certain conditions, but we're sometimes seeing nil pointers in the wild, not empty strings. Fixes https://github.com/tailscale/corp/issues/8878 Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-12-19netstat, portlist: update Windows implementation to disambiguate svchost ↵Aaron Klotz3-55/+141
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>
2022-12-12util/endian: delete package; use updated josharian/native insteadBrad Fitzpatrick1-4/+4
See josharian/native#3 Updates golang/go#57237 Change-Id: I238c04c6654e5b9e7d9cfb81a7bbc5e1043a84a2 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>
2022-08-02all: migrate more code code to net/netip directlyBrad Fitzpatrick1-1/+1
Instead of going through the tailscale.com/net/netaddr transitional wrappers. Updates #5162 Change-Id: I3dafd1c2effa1a6caa9b7151ecf6edd1a3fda3dd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25all: convert more code to use net/netip directlyBrad Fitzpatrick2-7/+7
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>
2022-07-25net/netaddr: start migrating to net/netip via new netaddr adapter packageBrad Fitzpatrick2-2/+2
Updates #5162 Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-05all: gofmt with Go 1.17Josh Bleecher Snyder1-0/+1
This adds "//go:build" lines and tidies up existing "// +build" lines. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-05-16all: adapt to opaque netaddr typesJosh Bleecher Snyder1-8/+4
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>
2020-11-17net/netstat: remove a bit more unsafeBrad Fitzpatrick1-1/+1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-11-14net/netstat: remove some unsafeBrad Fitzpatrick1-5/+10
Just removing any unnecessary unsafe while auditing unsafe usage for #921.
2020-09-10net/netstat: start of new netstat package, with Windows for nowBrad Fitzpatrick4-0/+247
This will be used in a future change to do localhost connection authentication. This lets us quickly map a localhost TCP connection to a PID. (A future change will then map a pid to a user) TODO: pull portlist's netstat code into this package. Then portlist will be fast on Windows without requiring shelling out to netstat.exe.
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