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/*
* Copyright (c) 2014 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __VXLAN_H_
#define __VXLAN_H_ 1
#include "IpHelper.h"
#include "NetProto.h"
typedef union _OVS_FWD_INFO *POVS_FWD_INFO;
typedef struct _OVS_VXLAN_VPORT {
UINT16 dstPort;
UINT64 filterID;
UINT64 ipId;
/*
* To be filled
*/
} OVS_VXLAN_VPORT, *POVS_VXLAN_VPORT;
/* VXLAN header. */
typedef struct VXLANHdr {
/* Flags. */
UINT32 flags1:2;
/* Packet needs replication to multicast group (used for multicast proxy).
*/
UINT32 locallyReplicate:1;
/* Instance ID flag, must be set to 1. */
UINT32 instanceID:1;
/* Flags. */
UINT32 flags2:4;
/* Reserved. */
UINT32 reserved1:24;
/* VXLAN ID. */
UINT32 vxlanID:24;
/* Reserved. */
UINT32 reserved2:8;
} VXLANHdr;
NTSTATUS OvsInitVxlanTunnel(PIRP irp,
POVS_VPORT_ENTRY vport,
UINT16 udpDestPort,
PFNTunnelVportPendingOp callback,
PVOID tunnelContext);
NTSTATUS OvsCleanupVxlanTunnel(PIRP irp,
POVS_VPORT_ENTRY vport,
PFNTunnelVportPendingOp callback,
PVOID tunnelContext);
NDIS_STATUS OvsSlowPathDecapVxlan(const PNET_BUFFER_LIST packet,
OvsIPTunnelKey *tunnelKey);
NDIS_STATUS OvsEncapVxlan(POVS_VPORT_ENTRY vport,
PNET_BUFFER_LIST curNbl,
OvsIPTunnelKey *tunKey,
POVS_SWITCH_CONTEXT switchContext,
POVS_PACKET_HDR_INFO layers,
PNET_BUFFER_LIST *newNbl,
POVS_FWD_INFO switchFwdInfo);
NDIS_STATUS OvsDecapVxlan(POVS_SWITCH_CONTEXT switchContext,
PNET_BUFFER_LIST curNbl,
OvsIPTunnelKey *tunKey,
PNET_BUFFER_LIST *newNbl);
static __inline UINT32
OvsGetVxlanTunHdrSize(BOOLEAN isIpv4)
{
/* XXX: Can L2 include VLAN at all? */
return sizeof(EthHdr) + (isIpv4 ? sizeof(IPHdr) : sizeof(IPv6Hdr)) +
sizeof (UDPHdr) + sizeof (VXLANHdr);
}
static __inline UINT32
OvsGetVxlanTunHdrSizeFromLayers(POVS_PACKET_HDR_INFO layers)
{
return layers->l7Offset + sizeof(VXLANHdr);
}
#define VXLAN_UDP_PORT 4789
#define VXLAN_UDP_PORT_NBO 0xB512
#endif /* __VXLAN_H_ */
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