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27 Commits

Author SHA1 Message Date
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 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
Tom DNetto df26c63793 net/dns/resolver, net/tsaddr: fix reverse lookups in 4to6 IP range 
Fixes #4439

Signed-off-by: Tom DNetto <tom@tailscale.com>
 2022-04-21 09:37:21 -07:00
Brad Fitzpatrick d413850bd7 cmd/tailscale: add "debug via" subcommand to do CIDR math for via ranges 
$ tailscale debug via 0xb 10.2.0.0/16
fd7a:115c:a1e0:b1a:0🅱️a02:0/112
$ tailscale debug via fd7a:115c:a1e0:b1a:0🅱️a02:0/112
site 11 (0xb), 10.2.0.0/16

Previously: 3ae701f0eb

This adds a little debug tool to do CIDR math to make converting between
those ranges easier for now.

Updates #3616

Change-Id: I98302e95d17765bfaced3ecbb71cbd43e84bff46
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-04-20 14:47:48 -07:00
Brad Fitzpatrick 3ae701f0eb net/tsaddr, wgengine/netstack: add IPv6 range that forwards to site-relative IPv4 
This defines a new magic IPv6 prefix, fd7a:115c:a1e0:b1a::/64, a
subset of our existing /48, where the final 32 bits are an IPv4
address, and the middle 32 bits are a user-chosen "site ID". (which
must currently be 0000:00xx; the top 3 bytes must be zero for now)

e.g., I can say my home LAN's "site ID" is "0000:00bb" and then
advertise its 10.2.0.0/16 IPv4 range via IPv6, like:

    tailscale up --advertise-routes=fd7a:115c:a1e0:b1a::bb:10.2.0.0/112

(112 being /128 minuse the /96 v6 prefix length)

Then people in my tailnet can:

     $ curl '[fd7a:115c:a1e0:b1a::bb:10.2.0.230]'
     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ....

Updates #3616, etc

RELNOTE=initial support for TS IPv6 addresses to route v4 "via" specific nodes

Change-Id: I9b49b6ad10410a24b5866b9fbc69d3cae1f600ef
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-04-11 17:26:07 -07:00
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
Emmanuel T Odeke 0daa32943e all: add (*testing.B).ReportAllocs() to every benchmark 
This ensures that we can properly track and catch allocation
slippages that could otherwise have been missed.

Fixes #2748
 2021-08-30 21:41:04 -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
Josh Bleecher Snyder 1e88050403 net/tsaddr: add ChromeOS contains tests 
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2020-12-28 16:48:43 -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