tailscale/wgengine
Irbe Krumina 9bd158cc09
cmd/containerboot,util/linuxfw: create a SNAT rule for dst/src only once, clean up if needed (#13658)
The AddSNATRuleForDst rule was adding a new rule each time it was called including:
- if a rule already existed
- if a rule matching the destination, but with different desired source already existed

This was causing issues especially for the in-progress egress HA proxies work,
where the rules are now refreshed more frequently, so more redundant rules
were being created.

This change:
- only creates the rule if it doesn't already exist
- if a rule for the same dst, but different source is found, delete it
- also ensures that egress proxies refresh firewall rules
if the node's tailnet IP changes

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
2024-10-03 20:15:00 +01:00
..
bench ipn/ipnlocal, all: plumb health trackers in tests 2024-05-07 22:22:10 -07:00
capture wgengine/capture: fix v6 field typo in wireshark dissector 2024-08-03 14:56:17 -07:00
filter wgengine/filter: support FilterRules matching on srcIP node caps [capver 100] 2024-06-20 12:27:04 -07:00
magicsock wgengine/magicsock: avoid log spam from ReceiveFunc on shutdown 2024-10-02 20:22:12 -07:00
netlog wgengine: add exit destination logging enable for wgengine logger (#11952) 2024-05-02 13:55:05 -04:00
netstack wgengine/netstack: check userspace ping success on Windows 2024-10-03 09:07:39 -07:00
router cmd/containerboot,util/linuxfw: create a SNAT rule for dst/src only once, clean up if needed (#13658) 2024-10-03 20:15:00 +01:00
wgcfg ipn,wgengine: remove vestigial Prefs.AllowSingleHosts 2024-05-17 20:50:19 -07:00
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 net/flowtrack: optimize Tuple type for use as map key 2024-06-18 21:31:48 -07:00
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: make opts.Metrics mandatory 2024-09-26 13:09:47 +02:00
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 ipn/ipnlocal,net/tstun,wgengine: create and plumb jailed packet filter 2024-05-06 15:32:22 -07:00
wgengine.go all: add test for package comments, fix, add comments as needed 2024-07-10 09:57:00 -07:00