tailscale/net
Claus Lensbøl ee0a03b140
net/dnscache: run happy eyeballs with more than one dest IP (#19770)
If the context given to DialContext has a shorter lifetime than the OS
TCP SYN timeout, and TCP SYNs are dropped from the path to the remote,
DialContext would never fall back to try IPv6 after IPv4.

Instead, use the normal happy eyeballs race if there is more than one
address. This does remove the implicit prioritization of IPv4 over IPv6
in cases where there is only a single IPv4 remote address.

Updates #13346

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
2026-05-19 12:59:11 -04:00
..
ace all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
art all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
bakedroots all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
batching cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -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 cmd/cloner: preserve nil-valued entries when cloning map (#19749) 2026-05-14 10:30:59 -04:00
dnscache net/dnscache: run happy eyeballs with more than one dest IP (#19770) 2026-05-19 12:59:11 -04:00
dnsfallback all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
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 cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
neterror all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
netkernelconf all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
netknob all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
netmon ipn/ipnlocal,net/netmon: make frequent darkwake more efficient 2026-04-06 15:46:51 -07:00
netns netns: add Android callback to bind socket to network (#18915) 2026-03-11 12:28:28 -07:00
netstat all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
netutil all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
netx all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
packet net,tsnet: fix the capitalisation of "Wireshark" 2026-03-26 19:39:29 +00:00
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
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 cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
stun cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
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
tsaddr all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tsdial net/tsdial, ipn/localapi, client/local: let clients dial non-Tailscale addresses directly 2026-04-27 09:33:27 -07:00
tshttpproxy cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
tstun wgengine, all: remove LazyWG, use wireguard-go callback API for on-demand peers 2026-04-29 19:46:19 -07:00
udprelay cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
wsconn all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00