Brendan Creane 77d2c87b17 wgengine/router/osrouter,util/linuxfw: remove orphaned tailnet addrs (#20199) ... Router.Set reconciled tailscale0's addresses only against the in-memory r.addrs map, which starts empty each run. After a restart the kernel can still hold the addresses a previous profile put on tailscale0. With no record of them, Set never removed them, leaving two tailnets' CGNAT addresses on the interface. That broke connectivity, because the kernel could source traffic from the wrong IP. Fix this by scanning the addresses actually on the interface and, after reconciling the desired set, removing any in Tailscale's CGNAT/ULA ranges that aren't in the config. Non-Tailscale addresses are never touched, and IPv6 addresses are skipped when IPv6 is unavailable, since delAddress no-ops there. To avoid a netlink dump on every Set, the scan runs only on the first Set and when the desired address set changes. This also needs the iptables DelLoopbackRule to tolerate a missing rule: an orphan left by a previous instance never went through AddLoopbackRule here, and iptables (unlike nftables) errors when deleting an absent rule, which would otherwise block the address delete. Fixes #19974 Signed-off-by: Brendan Creane <bcreane@gmail.com>		2026-06-24 13:41:36 -07:00
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backoff	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
bufiox	derp,types,util: use bufio Peek+Discard for allocation-free fast reads (#19067)	2026-03-24 10:52:20 -04:00
checkchange	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
cibuild	util/cibuild, cache_key_test: skip TestTsgoRevInCacheKey outside Tailscale CI	2026-05-14 15:55:05 -07:00
clientmetric	all: fix six tests that failed with -count=2	2026-04-13 18:52:57 -07:00
cloudenv	util/cloudenv: detect Hetzner Cloud	2026-06-23 11:10:59 -07:00
cloudinfo	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
cmpver	cmd/vet: add subtestnames analyzer; fix all existing violations	2026-04-05 15:52:51 -07:00
codegen	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
ctxkey	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
deephash	cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I"	2026-05-04 14:03:28 -07:00
def	util: add parse fallback helpers (#20022)	2026-06-15 15:58:51 -07:00
dirwalk	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
dnsname	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
eventbus	all: don't repeat the the word "the" unnecessarily	2026-06-18 16:32:08 +01:00
execqueue	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
goroutines	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
groupmember	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
hashx	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
httphdr	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
httpm	util/httpm: open .git/index to defeat Go test caching	2026-04-15 15:44:19 -07:00
limiter	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
lineiter	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
lineread	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
linuxfw	wgengine/router/osrouter,util/linuxfw: remove orphaned tailnet addrs (#20199)	2026-06-24 13:41:36 -07:00
lru	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
mak	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
multierr	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
must	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
nocasemaps	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
osdiag	util/osdiag: fix typo in comment (reciever -> receiver)	2026-03-23 12:54:38 +00:00
osshare	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
osuser	util/osuser: extend id command fallback for group IDs to freebsd	2026-03-09 08:39:07 +00:00
precompress	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
progresstracking	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
prompt	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
qrcodes	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
quarantine	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
race	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
racebuild	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
rands	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
reload	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
ringlog	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
safediff	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
set	util/set: add iterator support to Set[T] (#20159)	2026-06-18 00:12:56 -07:00
singleflight	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
slicesx	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
stringsx	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
syspolicy	cmd/vet: add subtestnames analyzer; fix all existing violations	2026-04-05 15:52:51 -07:00
testenv	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
truncate	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
usermetric	all: remove AUTHORS file and references to it	2026-01-23 15:49:45 -08:00
vizerror	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00
winutil	all: don't repeat the the word "the" unnecessarily	2026-06-18 16:32:08 +01:00
zstdframe	all: use Go 1.26 things, run most gofix modernizers	2026-03-06 13:32:03 -08:00