Commit Graph

36 Commits (50bf32a0ba13935273e200d52b9327821f25efc5)

Author SHA1 Message Date
Brad Fitzpatrick 4e0fc037e6 all: use iterators over slice views more
This gets close to all of the remaining ones.

Updates #12912

Change-Id: I9c672bbed2654a6c5cab31e0cbece6c107d8c6fa
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 weeks ago
Brad Fitzpatrick c48cc08de2 wgengine: stop conntrack log spam about Canonical net probes
Like we do for the ones on iOS.

As a bonus, this removes a caller of tsaddr.IsTailscaleIP which we
want to revamp/remove soonish.

Updates #13687

Change-Id: Iab576a0c48e9005c7844ab52a0aba5ba343b750e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 months ago
Brad Fitzpatrick 9e0a5cc551 net/flowtrack: optimize Tuple type for use as map key
This gets UDP filter overhead closer to TCP. Still ~2x, but no longer ~3x.

    goos: darwin
    goarch: arm64
    pkg: tailscale.com/wgengine/filter
                                       │   before    │                after                │
                                       │   sec/op    │   sec/op     vs base                │
    FilterMatch/tcp-not-syn-v4-8         15.43n ± 3%   15.38n ± 5%        ~ (p=0.339 n=10)
    FilterMatch/udp-existing-flow-v4-8   42.45n ± 0%   34.77n ± 1%  -18.08% (p=0.000 n=10)
    geomean                              25.59n        23.12n        -9.65%

Updates #12486

Change-Id: I595cfadcc6b7234604bed9c4dd4261e087c0d4c4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 months ago
Brad Fitzpatrick eb28818403 wgengine: make pendOpen time later, after dup check
Otherwise on OS retransmits, we'd make redundant timers in Go's timer
heap that upon firing just do nothing (well, grab a mutex and check a
map and see that there's nothing to do).

Updates #cleanup

Change-Id: Id30b8b2d629cf9c7f8133a3f7eca5dc79e81facb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
9 months ago
Brad Fitzpatrick e1bd7488d0 all: remove LenIter, use Go 1.22 range-over-int instead
Updates #11058
Updates golang/go#65685

Change-Id: Ibb216b346e511d486271ab3d84e4546c521e4e22
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
9 months ago
Brad Fitzpatrick 58a4fd43d8 types/netmap, all: use read-only tailcfg.NodeView in NetworkMap
Updates #8948

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick 17ce75347c wgengine: adjust debug logging for WireGuard-only peers
Updates #cleanup

Signed-off-by: Brad Fitzpatrick <bradfitz@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>
2 years ago
James Tucker 81dba3738e wgengine: remove all peer status from open timeout diagnostics
Avoid contention from fetching status for all peers, and instead fetch
status for a single peer.

Updates tailscale/coral#72
Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Andrew Dunham e8f09d24c7
wgengine: use a singleflight.Group to reduce status contention (#5450)
Updates tailscale/coral#72

Signed-off-by: Andrew Dunham <andrew@tailscale.com>

Signed-off-by: Andrew Dunham <andrew@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
James Tucker f9e86e64b7 *: use WireGuard where logged, printed or named
Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Brad Fitzpatrick 910ae68e0b util/mak: move tailssh's mapSet into a new package for reuse elsewhere
Change-Id: Idfe95db82275fd2be6ca88f245830731a0d5aecf
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 bb91cfeae7 net/socks5/tssocks, wgengine: permit SOCKS through subnet routers/exit nodes
Fixes #1970

Change-Id: Ibef45e8796e1d9625716d72539c96d1dbf7b1f76
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 7e6a1ef4f1 tailcfg: use key.NodePublic in wire protocol types.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson c17250cee2 ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 72ace0acba wgengine/magicsock: use key.NodePublic instead of tailcfg.NodeKey.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 82fa15fa3b wgengine/magicsock: start removing endpointForDiscoKey
It's not valid to assume that a discokey is globally unique.

This removes the first two of the four callers.

Updates #3088

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7bfd4f521d cmd/tailscale: fix "tailscale ip $self-host-hostname"
And in the process, fix the related confusing error messages from
pinging your own IP or hostname.

Fixes #2803

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 8a3d52e882 wgengine/magicsock: use mono.Time
magicsock makes multiple calls to Now per packet.
Move to mono.Now. Changing some of the calls to
use package mono has a cascading effect,
causing non-per-packet call sites to also switch.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 80a4052593 cmd/tailscale, wgengine, tailcfg: don't assume LastSeen is present [mapver 20]
Updates #2107

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 1a1123d461 wgengine: fix pendopen debug to not track SYN+ACKs, show Node.Online state
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 12b4672add wgengine: quiet connection failure diagnostics for exit nodes
The connection failure diagnostic code was never updated enough for
exit nodes, so disable its misleading output when the node it picks
(incorrectly) to diagnose is only an exit node.

Fixes #1754

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 016de16b2e net/tstun: rename TUN to Wrapper.
The tstun packagen contains both constructors for generic tun
Devices, and a wrapper that provides additional functionality.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 588b70f468 net/tstun: merge in wgengine/tstun.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 0994a9f7c4 wgengine{,/magicsock}: fix, improve "tailscale ping" to default routes and subnets
e.g.

$ tailscale ping 1.1.1.1
exit node found but not enabled

$ tailscale ping 10.2.200.2
node "tsbfvlan2" found, but not using its 10.2.200.0/24 route

$ sudo tailscale  up --accept-routes
$ tailscale ping 10.2.200.2
pong from tsbfvlan2 (100.124.196.94) via 10.2.200.34:41641 in 1ms

$ tailscale ping mon.ts.tailscale.com
pong from monitoring (100.88.178.64) via DERP(sfo) in 83ms
pong from monitoring (100.88.178.64) via DERP(sfo) in 21ms
pong from monitoring (100.88.178.64) via [2604:a880:4:d1::37:d001]:41641 in 22ms

This necessarily moves code up from magicsock to wgengine, so we can
look at the actual wireguard config.

Fixes #1564

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 1eb95c7e32 net/packet, wgengine{,/filter}: remove net/packet IPProto forwarding consts
Only use the ones in types/ipproto now.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 01b90df2fa net/packet, wgengine/filter: support SCTP
Add proto to flowtrack.Tuple.

Add types/ipproto leaf package to break a cycle.

Server-side ACL work remains.

Updates #1516

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick e0f2796b43 wgengine: don't diagnose iOS NWPathMonitor connection probe timeouts
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d76334d2f0 ipn: split LocalBackend off into new ipn/ipnlocal package
And move a couple other types down into leafier packages.

Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc.

Fixes #1181

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 70eb05fd47 wgengine: access flow pending problem with lock held
Missed review feedback from just-submitted d37058af72.
4 years ago
Brad Fitzpatrick d37058af72 net/packet: add some more TSMP packet reject reasons and MaybeBroken bit
Unused for now, but I want to backport this commit to 1.4 so 1.6 can
start sending these and then at least 1.4 logs will stringify nicely.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b560386c1a net/packet, wgengine, tstun: add inter-node TSMP protocol for connect errors
This adds a new IP Protocol type, TSMP on protocol number 99 for
sending inter-tailscale messages over WireGuard, currently just for
why a peer rejects TCP SYNs (ACL rejection, shields up, and in the
future: nothing listening, something listening on that port but wrong
interface, etc)

Updates #1094
Updates tailscale/corp#1185

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 85e54af0d7 wgengine: on TCP connect fail/timeout, log some clues about why it failed
So users can see why things aren't working.

A start. More diagnostics coming.

Updates #1094
4 years ago