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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>
2 months ago
..
bench
capture
filter
magicsock wgengine/magicsock: avoid log spam from ReceiveFunc on shutdown 2 months ago
netlog
netstack wgengine/netstack: check userspace ping success on Windows 2 months ago
router cmd/containerboot,util/linuxfw: create a SNAT rule for dst/src only once, clean up if needed (#13658) 2 months ago
wgcfg
wgint
wglog
winnet
mem_ios.go
pendopen.go
userspace.go wgengine: make opts.Metrics mandatory 2 months ago
userspace_ext_test.go util/usermetrics: make usermetrics non-global 2 months ago
userspace_test.go util/usermetrics: make usermetrics non-global 2 months ago
watchdog.go
watchdog_js.go
watchdog_test.go util/usermetrics: make usermetrics non-global 2 months ago
wgengine.go