diff options
| author | Bert Muthalaly <stijlist@google.com> | 2020-01-09 10:34:30 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-01-09 10:46:01 -0800 |
| commit | e752ddbb72d89b19863a6b50d99814149a08d5fe (patch) | |
| tree | eea29f390d8f7dc40ee306f893753f8297214687 /pkg/tcpip/stack/nic.go | |
| parent | 290908fa8ae2363c3d2a7af7cef8d5dda622cde7 (diff) | |
Allow clients to store an opaque NICContext with NICs
...retrievable later via stack.NICInfo().
Clients of this library can use it to add metadata that should be tracked
alongside a NIC, to avoid having to keep a map[tcpip.NICID]metadata mirroring
stack.Stack's nic map.
PiperOrigin-RevId: 288924900
Diffstat (limited to 'pkg/tcpip/stack/nic.go')
| -rw-r--r-- | pkg/tcpip/stack/nic.go | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/pkg/tcpip/stack/nic.go b/pkg/tcpip/stack/nic.go index 4144d5d0f..3810c6602 100644 --- a/pkg/tcpip/stack/nic.go +++ b/pkg/tcpip/stack/nic.go @@ -27,10 +27,11 @@ import ( // NIC represents a "network interface card" to which the networking stack is // attached. type NIC struct { - stack *Stack - id tcpip.NICID - name string - linkEP LinkEndpoint + stack *Stack + id tcpip.NICID + name string + linkEP LinkEndpoint + context NICContext mu sync.RWMutex spoofing bool @@ -84,7 +85,7 @@ const ( ) // newNIC returns a new NIC using the default NDP configurations from stack. -func newNIC(stack *Stack, id tcpip.NICID, name string, ep LinkEndpoint) *NIC { +func newNIC(stack *Stack, id tcpip.NICID, name string, ep LinkEndpoint, ctx NICContext) *NIC { // TODO(b/141011931): Validate a LinkEndpoint (ep) is valid. For // example, make sure that the link address it provides is a valid // unicast ethernet address. @@ -98,6 +99,7 @@ func newNIC(stack *Stack, id tcpip.NICID, name string, ep LinkEndpoint) *NIC { id: id, name: name, linkEP: ep, + context: ctx, primary: make(map[tcpip.NetworkProtocolNumber][]*referencedNetworkEndpoint), endpoints: make(map[NetworkEndpointID]*referencedNetworkEndpoint), mcastJoins: make(map[NetworkEndpointID]int32), |