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7bfd4f521d
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17 Commits

Author SHA1 Message Date
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>
 2021-09-07 11:57:23 -07:00
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>
 2021-07-29 12:56:58 -07:00
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>
 2021-06-11 08:41:16 -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
Brad Fitzpatrick
1a1123d461 wgengine: fix pendopen debug to not track SYN+ACKs, show Node.Online state 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-05-05 15:25:11 -07:00
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>
 2021-04-22 08:29:20 -07:00
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>
 2021-03-26 23:15:22 -07:00
David Anderson
588b70f468 net/tstun: merge in wgengine/tstun. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-26 22:31:54 -07:00
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>
 2021-03-22 21:29:44 -07:00
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>
 2021-03-20 21:45:47 -07:00
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>
 2021-03-20 21:34:13 -07:00
Brad Fitzpatrick
e0f2796b43 wgengine: don't diagnose iOS NWPathMonitor connection probe timeouts 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-16 14:13:02 -07:00
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>
 2021-02-04 14:04:23 -08:00
Brad Fitzpatrick
70eb05fd47 wgengine: access flow pending problem with lock held 
Missed review feedback from just-submitted d37058af72.
 2021-02-04 11:18:32 -08:00
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>
 2021-02-04 10:59:07 -08:00
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>
 2021-01-15 14:03:57 -08:00
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
 2021-01-11 22:09:09 -08:00