diff options
Diffstat (limited to 'pkg/tcpip/stack/registration.go')
| -rw-r--r-- | pkg/tcpip/stack/registration.go | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index b8f333057..00e9a82ae 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -138,7 +138,7 @@ type PacketEndpoint interface { HandlePacket(nicID tcpip.NICID, addr tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, pkt *PacketBuffer) } -// UnknownDestinationPacketDisposition enumerates the possible return vaues from +// UnknownDestinationPacketDisposition enumerates the possible return values from // HandleUnknownDestinationPacket(). type UnknownDestinationPacketDisposition int @@ -263,6 +263,15 @@ const ( PacketLoop ) +// NetOptions is an interface that allows us to pass network protocol specific +// options through the Stack layer code. +type NetOptions interface { + // AllocationSize returns the amount of memory that must be allocated to + // hold the options given that the value must be rounded up to the next + // multiple of 4 bytes. + AllocationSize() int +} + // NetworkHeaderParams are the header parameters given as input by the // transport endpoint to the network. type NetworkHeaderParams struct { @@ -274,6 +283,10 @@ type NetworkHeaderParams struct { // TOS refers to TypeOfService or TrafficClass field of the IP-header. TOS uint8 + + // Options is a set of options to add to a network header (or nil). + // It will be protocol specific opaque information from higher layers. + Options NetOptions } // GroupAddressableEndpoint is an endpoint that supports group addressing. @@ -281,7 +294,7 @@ type NetworkHeaderParams struct { // An endpoint is considered to support group addressing when one or more // endpoints may associate themselves with the same identifier (group address). type GroupAddressableEndpoint interface { - // JoinGroup joins the spcified group. + // JoinGroup joins the specified group. // // Returns true if the group was newly joined. JoinGroup(group tcpip.Address) (bool, *tcpip.Error) @@ -378,7 +391,7 @@ type AddressEndpoint interface { SetDeprecated(bool) } -// AddressKind is the kind of of an address. +// AddressKind is the kind of an address. // // See the values of AddressKind for more details. type AddressKind int |