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29 Commits

Author SHA1 Message Date
salman aljammaz 25a7204bb4
wgengine,ipn,cmd/tailscale: add size option to ping (#8739) 
This adds the capability to pad disco ping message payloads to reach a
specified size. It also plumbs it through to the tailscale ping -size
flag.

Disco pings used for actual endpoint discovery do not use this yet.

Updates #311.

Signed-off-by: salman <salman@tailscale.com>
Co-authored-by: Val <valerie@tailscale.com>
 2023-08-08 13:11:28 +01:00
David Anderson 9a76deb4b0 disco: move disco pcap helper to disco package 
Updates tailscale/corp#13464

Signed-off-by: David Anderson <danderson@tailscale.com>
 2023-07-26 13:39:57 -07:00
Brad Fitzpatrick b1248442c3 all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork 
Updates #7123
Updates #5309

Change-Id: I90bcd87a2fb85a91834a0dd4be6e03db08438672
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2023-02-01 15:23:54 -08:00
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>
 2023-01-27 15:36:29 -08:00
Mihai Parparita 33520920c3 all: use strs.CutPrefix and strs.CutSuffix more 
Updates places where we use HasPrefix + TrimPrefix to use the combined
function.

Updates #5309

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 2022-11-21 14:32:16 -08:00
Brad Fitzpatrick da8def8e13 all: remove old +build tags 
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>
 2022-11-04 07:25:42 -07:00
Josh Soref d4811f11a0 all: fix spelling mistakes 
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
 2022-09-29 13:36:13 -07:00
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>
 2022-08-02 13:59:57 -07:00
Brad Fitzpatrick 116f55ff66 all: gofmt for Go 1.19 
Updates #5210

Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-08-02 10:08:05 -07:00
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>
 2022-07-25 21:53:49 -07:00
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>
 2022-07-25 21:12:28 -07:00
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>
 2022-07-25 16:20:43 -07:00
David Anderson 84c3a09a8d types/key: export constants for key size, not a method. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-29 17:39:04 -07:00
David Anderson 6422789ea0 disco: use key.NodePublic instead of tailcfg.NodeKey. 
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-29 17:39:04 -07:00
David Anderson e7eb46bced wgengine/magicsock: add an explicit else branch to peerMap update. 
Clarifies that the replace+delete of peerinfo data is only when peerInfo
already exists.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 13:05:52 -07:00
David Anderson 1c56643136 disco: amplify comment that disco ping's NodeKey shouldn't be trusted by itself. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-10-18 13:05:52 -07:00
Brad Fitzpatrick 75a7779b42 disco, wgengine/magicsock: send self node key in disco pings 
This lets clients quickly (sub-millisecond within a local LAN) map
from an ambiguous disco key to a node key without waiting for a
CallMeMaybe (over relatively high latency DERP).

Updates #3088

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-10-17 10:24:07 -07:00
Brad Fitzpatrick dabeda21e0 net/tstun: block looped disco traffic 
Updates #1526 (maybe fixes? time will tell)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-09-13 16:00:28 -07:00
Josh Bleecher Snyder a5da4ed981 all: gofmt with Go 1.17 
This adds "//go:build" lines and tidies up existing "// +build" lines.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-08-05 15:54:00 -07:00
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>
 2021-05-16 14:52:00 -07:00
AdamKorcz 7a1813fd24 Added 2 fuzzers 
Signed-off-by: AdamKorcz <adam@adalogics.com>
 2021-04-10 11:40:10 -07:00
Brad Fitzpatrick edf64e0901 wgengine/magicsock: send, use endpoints in CallMeMaybe messages 
Fixes #1172

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-01-20 14:59:41 -08:00
Brad Fitzpatrick b5b4992eff disco: support parsing/encoding endpoints in call-me-maybe frames 
Updates #1172

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-01-20 12:16:33 -08:00
Brad Fitzpatrick a6559a8924 wgengine/magicsock: run test DERP in mode where only disco packets allowed 
So we don't accidentally pass a NAT traversal test by having DERP pick up our slack
when we really just wanted DERP as an OOB messaging channel.
 2020-07-16 12:58:35 -07:00
Brad Fitzpatrick f5f3885b5b wgengine/magicsock: bunch of misc discovery path cleanups 
* fix tailscale status for peers using discovery
* as part of that, pull out disco address selection into reusable
  and testable discoEndpoint.addrForSendLocked
* truncate ping/pong logged hex txids in half to eliminate noise
* move a bunch of random time constants into named constants
  with docs
* track a history of per-endpoint pong replies for future use &
  status display
* add "send" and " got" prefix to discovery message logging
  immediately before the frame type so it's easier to read than
  searching for the "<-" or "->" arrows earlier in the line; but keep
  those as the more reasily machine readable part for later.

Updates #483
 2020-07-03 11:26:22 -07:00
Brad Fitzpatrick 847b6f039b disco: simplify expression, appease staticcheck 
Was:
disco/disco.go:164:10: unnecessary use of fmt.Sprintf (S1039)
 2020-07-02 10:52:23 -07:00
Brad Fitzpatrick 0f0ed3dca0 wgengine/magicsock: clean up discovery logging 
Updates #483
 2020-07-02 10:48:13 -07:00
Brad Fitzpatrick 77d3ef36f4 wgengine/magicsock: hook up discovery messages, upgrade to LAN works 
Ping messages now go out somewhat regularly, pong replies are sent,
and pong replies are now partially handled enough to upgrade off DERP
to LAN.

CallMeMaybe packets are sent & received over DERP, but aren't yet
handled. That's next (and regular maintenance timers), and then WAN
should work.

Updates #483
 2020-07-01 13:00:50 -07:00
Brad Fitzpatrick eb4eb34f37 disco: new package for parsing & marshaling discovery messages 
Updates #483
 2020-06-29 21:54:34 -07:00