Jonathan Nobels fb47824d74

wgengine: return explicit lo0 for loopback addrs on sandboxed macOS (#15493) ...

fixes tailscale/corp#27506

The source address link selection on sandboxed macOS doesn't deal
with loopback addresses correctly.  This adds an explicit check to ensure
we return the loopback interface for loopback addresses instead of the
default empty interface.

Specifically, this allows the dns resolver to route queries to a loopback
IP which is a common tactic for local DNS proxies.

Tested on both macos, macsys and tailscaled.  Forwarded requests to
127/8 all bound to lo0.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>

2025-04-01 13:20:46 -04:00

..

bench

ipn/ipnlocal, all: plumb health trackers in tests

2024-05-07 22:22:10 -07:00

filter

wgengine/filter: add check for unknown proto

2025-01-24 12:20:44 +01:00

magicsock

net/netmon, wgengine/magicsock: be quieter with portmapper logs

2025-03-12 17:45:26 -04:00

netlog

wgengine: add exit destination logging enable for wgengine logger (#11952)

2024-05-02 13:55:05 -04:00

netstack

tsnet,wgengine: fix src to primary Tailscale IP for TCP dials

2025-03-11 13:11:01 -07:00

router

wgengine/router: refactor udm-pro into broader ubnt support

2025-01-03 13:06:16 -05:00

wgcfg

wgengine/wgcfg/nmcfg: coalesce, limit some debug logs

2025-02-03 10:36:36 -08:00

wgint

wgengine{,/wgint}: add wgint.Peer wrapper type, add to wgengine.Engine

2024-02-28 09:50:18 -08:00

wglog

all: use Go 1.22 range-over-int

2024-04-16 15:32:38 -07:00

winnet

all: add test for package comments, fix, add comments as needed

2024-07-10 09:57:00 -07:00

mem_ios.go

all: update copyright and license headers

2023-01-27 15:36:29 -08:00

pendopen.go

all: add Node.HomeDERP int, phase out "127.3.3.40:$region" hack [capver 111]

2025-01-14 12:27:14 -08:00

userspace_ext_test.go

util/usermetrics: make usermetrics non-global

2024-09-25 15:57:00 +02:00

userspace_test.go

util/usermetrics: make usermetrics non-global

2024-09-25 15:57:00 +02:00

userspace.go

wgengine: return explicit lo0 for loopback addrs on sandboxed macOS (#15493)

2025-04-01 13:20:46 -04:00

watchdog_js.go

all: update copyright and license headers

2023-01-27 15:36:29 -08:00

watchdog_test.go

util/usermetrics: make usermetrics non-global

2024-09-25 15:57:00 +02:00

watchdog.go

feature/capture: move packet capture to feature/*, out of iOS + CLI

2025-01-24 17:52:43 -08:00

wgengine.go

feature/capture: move packet capture to feature/*, out of iOS + CLI

2025-01-24 17:52:43 -08:00