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18 Commits

Author SHA1 Message Date
Maisem Ali
309ddef852
net/netutil: add CheckIPForwardingLinux (#4301) 
Combine the code between `LocalBackend.CheckIPForwarding` and
`controlclient.ipForwardingBroken`.

Fixes #4300

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2022-03-28 10:24:11 -07:00
Brad Fitzpatrick
b493ef5b71 net/tsaddr: add func ContainsExitRoutes 
Change-Id: I772441a406083e2fe0f9374b2b23d89aac18928f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-03-04 08:56:06 -08:00
Brad Fitzpatrick
506c727e30 ipnlocal, net/{dns,tsaddr,tstun}, wgengine: support MagicDNS on IPv6 
Fixes #3660

RELNOTE=MagicDNS now works over IPv6 when CGNAT IPv4 is disabled.

Change-Id: I001e983df5feeb65289abe5012dedd177b841b45
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-01-04 14:37:22 -08:00
Brad Fitzpatrick
2c94e3c4ad wgengine/magicsock: don't unconditionally close DERP connections on rebind 
Only if the source address isn't on the currently active interface or
a ping of the DERP server fails.

Updates #3619

Change-Id: I6bf06503cff4d781f518b437c8744ac29577acc8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-12-29 13:21:05 -08:00
Brad Fitzpatrick
22a1a5d7cf ipn/ipnlocal: for IPv6-only nodes, publish IPv6 MagicDNS records of peers 
See https://github.com/tailscale/tailscale/issues/2970#issuecomment-931885268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-10-04 08:54:23 -07:00
Brad Fitzpatrick
7fe6ecf165 ipn/ipnlocal: add MagicDNS records for IPv6-only nodes 
Updates #2268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-09-07 15:56:13 -07:00
Matt Layher
3ff8a55fa7 net/tsaddr: remove IsULA, replace with netaddr.IP.IsPrivate 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2021-07-30 19:56:11 -07:00
Brad Fitzpatrick
ca455ac84b net/tsaddr: simplify TailscaleServiceIP 
netaddr allocated at the time this was written. No longer.

name                    old time/op  new time/op  delta
TailscaleServiceAddr-4  5.46ns ± 4%  1.83ns ± 3%  -66.52%  (p=0.008 n=5+5)

A bunch of the others can probably be simplified too, but this
was the only one with just an IP and not an IPPrefix.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-05-28 20:36:26 -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
7629cd6120 net/tsaddr: add NewContainsIPFunc (move from wgengine) 
I want to use this from netstack but it's not exported.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-05-05 13:15:50 -07:00
Naman Sood
71b7e48547
net/tsaddr: expand ephemeral nodes range to /64 
Signed-off-by: Naman Sood <mail@nsood.in>
 2021-04-19 15:54:53 -04:00
Naman Sood
b85d80b37f
net/tsaddr: add new IP range for ephemeral nodes in Tailscale ULA (#1715) 
Signed-off-by: Naman Sood <mail@nsood.in>
 2021-04-16 14:47:55 -04:00
Denton Gentry
ecf310be3c net/tsaddr: IsUla() for IPv6 Unique Local Address 
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
 2021-03-30 12:33:53 -07:00
Brad Fitzpatrick
e2b3d9aa5f all: s/Magic DNS/MagicDNS/ for consistency 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-03-23 14:25:28 -07:00
David Anderson
8d77dfdacb wgengine/router: add a dummy IPv6 address if needed for default routing. 
Fixes #1339

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-02 19:32:04 -08:00
David Anderson
5c35c35e7f tsaddr: add helpers for the Tailscale IPv6 range, and 4to6 conversion. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-10-15 15:15:24 -07:00
Dmytro Shynkevych
28e52a0492
all: dns refactor, add Proxied and PerDomain flags from control (#615) 
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
 2020-07-31 16:27:09 -04:00
Brad Fitzpatrick
742b8b44a8 net/tsaddr: new package to hold Tailscale-specific IPs/ranges 
And update existing callers with (near) duplicated cases.
 2020-07-06 22:33:29 -07:00