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| author | Ghanan Gowripalan <ghanan@google.com> | 2020-03-13 12:29:19 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-03-13 12:30:16 -0700 |
| commit | 530a31f3c08b10fbd2f8135c5b76380cf5e7f4e8 (patch) | |
| tree | ebdcb735ccd0805548535823aebcb9c2cf9b1fae /pkg/tcpip/stack/registration.go | |
| parent | 86409c91813256f45ebcb08efeac9d7f9e56a804 (diff) | |
Disable a NIC before removing it
When a NIC is removed, attempt to disable the NIC first to cleanup
dynamic state and stop ongoing periodic tasks (e.g. IPv6 router
solicitations, DAD) so that a removed NIC does not attempt to send
packets.
Tests:
- stack_test.TestRemoveUnknownNIC
- stack_test.TestRemoveNIC
- stack_test.TestDADStop
- stack_test.TestCleanupNDPState
- stack_test.TestRouteWithDownNIC
- stack_test.TestStopStartSolicitingRouters
PiperOrigin-RevId: 300805857
Diffstat (limited to 'pkg/tcpip/stack/registration.go')
| -rw-r--r-- | pkg/tcpip/stack/registration.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index f9fd8f18f..fa28b46b1 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -401,6 +401,9 @@ type LinkEndpoint interface { // Attach attaches the data link layer endpoint to the network-layer // dispatcher of the stack. + // + // Attach will be called with a nil dispatcher if the receiver's associated + // NIC is being removed. Attach(dispatcher NetworkDispatcher) // IsAttached returns whether a NetworkDispatcher is attached to the |