Aaron Klotz a91c7f7a30 net/dns: only attempt registry changes on address families that are actually enabled on interface ...

We stop waiting to see if registry keys come available; this causes bad
interactions with the LocalBackend watchdog.

Instead we check the network interface for availability of AF_INET,
AF_INET6, and AF_NETBIOS. If no IP families are available on the
interface, we fail with an error. Otherwise we only attempt to configure
DNS for the address families that are actually enabled.

We also avoid changing any NetBIOS settings if AF_NETBIOS is disabled.

Fixes https://github.com/tailscale/corp/issues/46276

(cherry picked from commit 4bf9382c3b)
Signed-off-by: Aaron Klotz <aaron@tailscale.com>

2026-08-13 13:18:54 -06:00

..

ace

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

art

all: apply go fix

2026-07-10 17:39:16 -07:00

bakedroots

net/bakedroots: add LetsEncrypt Generation Y roots (YE, YR)

2026-07-20 07:23:35 -07:00

batching

net/batching: reset Buffers len in WriteBatchTo

2026-05-31 06:12:53 -07:00

captivedetection

all: use Go 1.26 things, run most gofix modernizers

2026-03-06 13:32:03 -08:00

connectproxy

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

dns

net/dns: only attempt registry changes on address families that are actually enabled on interface

2026-08-13 13:18:54 -06:00

dnscache

net/tsdial: run happy eyeballs across A and AAAA in UserDial

2026-05-20 18:35:55 -07:00

dnsfallback

net/netutil: add NewDefaultTransport to avoid http.DefaultTransport panics

2026-06-01 12:28:36 -07:00

flowtrack

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

ipset

all: use bart.Lite instead of bart.Table where appropriate

2026-03-24 14:45:23 +00:00

ktimeout

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

memnet

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

netaddr

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

netcheck

feature/captiveportal: move captive portal code out of ipnlocal, netcheck

2026-07-14 20:22:23 -04:00

neterror

all: use Go 1.26 things, run most gofix modernizers

2026-03-06 13:32:03 -08:00

netkernelconf

all: make this spelling mistake non-existant

2026-06-11 10:37:50 +01:00

netknob

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

netmon

net/netmon: report disappeared interface IPs (#20621)

2026-07-30 10:02:56 -07:00

netns

all: don't repeat the the word "the" unnecessarily

2026-06-18 16:32:08 +01:00

netstat

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

netutil

net/netutil: add test coverage for ipForwardingEnabledLinux per-interface reads

2026-07-22 13:33:20 -07:00

netx

net/tsdial: run happy eyeballs across A and AAAA in UserDial

2026-05-20 18:35:55 -07:00

packet

net/packet: generate ICMP destination unreachable packets

2026-07-20 07:33:00 -07:00

ping

wgengine/netstack, net/ping: stop using pro-bing and use our net/ping instead

2026-05-04 14:05:24 -07:00

portmapper

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

porttrack

net/porttrack: change magic listen address format for Go 1.26

2026-03-04 21:57:05 -08:00

proxymux

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

routecheck

ipn/ipnlocal: use routecheck reports to make exit node suggestions

2026-07-02 20:26:27 -07:00

routemanager

ipn/ipnlocal, wgengine/wgcfg/nmcfg: stop building peer lists on delta path

2026-07-15 11:21:36 -04:00

routetable

netns,wgengine: add OpenBSD support to netns via an rtable

2026-02-25 12:44:32 -08:00

sockopts

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

socks5

all: use Go 1.26 things, run most gofix modernizers

2026-03-06 13:32:03 -08:00

sockstats

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

speedtest

all: fix JSON serialization under Go 1.27's finalized encoding/json/v2

2026-07-19 09:58:50 -07:00

stun

all: fix more typos caused by unnecessary repetition

2026-07-06 10:36:17 +01:00

stunserver

all: use Go 1.26 things, run most gofix modernizers

2026-03-06 13:32:03 -08:00

tcpinfo

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

tlsdial

tsd, all: add Sys.ExtraRootCAs, plumb through TLS dial paths

2026-04-07 18:10:54 -07:00

traffic

net/traffic: add fuzz test for sorting nodes by traffic score (#19893)

2026-05-29 11:55:49 -07:00

tsaddr

wgengine/router/osrouter: remove orphaned tailnet addrs on cleanup (#20304)

2026-07-17 14:18:09 -07:00

tsdial

net/tsdial, ipn/ipnlocal: stop using netmap.NetworkMap in Dialer

2026-06-24 13:14:45 -07:00

tshttpproxy

cmd/vet: add subtestnames analyzer; fix all existing violations

2026-04-05 15:52:51 -07:00

tstun

net/tstun: drop TSMP messages injected into TUN (#20511)

2026-07-17 15:10:08 -04:00

udprelay

control/controlknobs,net/{batching,tstun},wgengine: add nodecaps to disable UDP & TUN GRO/GSO

2026-05-27 17:10:14 -07:00

wsconn

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00