diff options
Diffstat (limited to 'pkg/sentry/socket/netstack/stack.go')
| -rw-r--r-- | pkg/sentry/socket/netstack/stack.go | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/pkg/sentry/socket/netstack/stack.go b/pkg/sentry/socket/netstack/stack.go index 548442b96..67737ae87 100644 --- a/pkg/sentry/socket/netstack/stack.go +++ b/pkg/sentry/socket/netstack/stack.go @@ -15,6 +15,8 @@ package netstack import ( + "fmt" + "gvisor.dev/gvisor/pkg/abi/linux" "gvisor.dev/gvisor/pkg/log" "gvisor.dev/gvisor/pkg/sentry/inet" @@ -40,19 +42,29 @@ func (s *Stack) SupportsIPv6() bool { return s.Stack.CheckNetworkProtocol(ipv6.ProtocolNumber) } +// Converts Netstack's ARPHardwareType to equivalent linux constants. +func toLinuxARPHardwareType(t header.ARPHardwareType) uint16 { + switch t { + case header.ARPHardwareNone: + return linux.ARPHRD_NONE + case header.ARPHardwareLoopback: + return linux.ARPHRD_LOOPBACK + case header.ARPHardwareEther: + return linux.ARPHRD_ETHER + default: + panic(fmt.Sprintf("unknown ARPHRD type: %d", t)) + } +} + // Interfaces implements inet.Stack.Interfaces. func (s *Stack) Interfaces() map[int32]inet.Interface { is := make(map[int32]inet.Interface) for id, ni := range s.Stack.NICInfo() { - var devType uint16 - if ni.Flags.Loopback { - devType = linux.ARPHRD_LOOPBACK - } is[int32(id)] = inet.Interface{ Name: ni.Name, Addr: []byte(ni.LinkAddress), Flags: uint32(nicStateFlagsToLinux(ni.Flags)), - DeviceType: devType, + DeviceType: toLinuxARPHardwareType(ni.ARPHardwareType), MTU: ni.MTU, } } |