2 * Copyright (c) 2014 VMware, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
26 typedef struct _OvsFlow
{
27 LIST_ENTRY ListEntry
; // In Datapath's flowTable.
35 UINT32 userActionsLen
; // used for flow query
36 UINT32 actionBufferLen
; // used for flow reuse
41 typedef struct _OvsLayers
{
42 UINT32 l3Ofs
; // IPv4, IPv6, ARP, or other L3 header.
43 UINT32 l4Ofs
; // TCP, UDP, ICMP, ICMPv6, or other L4 header.
44 UINT32 l7Ofs
; // L4 protocol's payload.
47 extern UINT64 ovsUserTimestampDelta
;
48 extern UINT64 ovsTimeIncrementPerTick
;
50 NDIS_STATUS
OvsDeleteFlowTable(OVS_DATAPATH
*datapath
);
51 NDIS_STATUS
OvsAllocateFlowTable(OVS_DATAPATH
*datapath
,
52 POVS_SWITCH_CONTEXT switchContext
);
54 NDIS_STATUS
OvsExtractFlow(const NET_BUFFER_LIST
*pkt
, UINT32 inPort
,
55 OvsFlowKey
*flow
, POVS_PACKET_HDR_INFO layers
,
56 OvsIPv4TunnelKey
*tunKey
);
57 OvsFlow
*OvsLookupFlow(OVS_DATAPATH
*datapath
, const OvsFlowKey
*key
,
58 UINT64
*hash
, BOOLEAN hashValid
);
59 UINT64
OvsHashFlow(const OvsFlowKey
*key
);
60 VOID
OvsFlowUsed(OvsFlow
*flow
, const NET_BUFFER_LIST
*pkt
,
61 const POVS_PACKET_HDR_INFO layers
);
63 NTSTATUS
OvsDumpFlowIoctl(PVOID inputBuffer
, UINT32 inputLength
,
64 PVOID outputBuffer
, UINT32 outputLength
,
66 NTSTATUS
OvsPutFlowIoctl(PVOID inputBuffer
, UINT32 inputLength
,
67 struct OvsFlowStats
*stats
);
68 NTSTATUS
OvsGetFlowIoctl(PVOID inputBuffer
, PVOID outputBuffer
);
69 NTSTATUS
OvsFlushFlowIoctl(UINT32 dpNo
);
71 NTSTATUS
OvsFlowNlCmdHandler(POVS_USER_PARAMS_CONTEXT usrParamsCtx
,
73 NTSTATUS
OvsFlowNlGetCmdHandler(POVS_USER_PARAMS_CONTEXT usrParamsCtx
,
75 NTSTATUS
MapFlowKeyToNlKey(PNL_BUFFER nlBuf
, OvsFlowKey
*flowKey
,
76 UINT16 keyType
, UINT16 tunKeyType
);
77 NTSTATUS
MapFlowTunKeyToNlKey(PNL_BUFFER nlBuf
, OvsIPv4TunnelKey
*tunKey
,
79 UINT32
OvsFlowKeyAttrSize(void);
80 UINT32
OvsTunKeyAttrSize(void);
82 /* Flags for tunneling */
83 #define OVS_TNL_F_DONT_FRAGMENT (1 << 0)
84 #define OVS_TNL_F_CSUM (1 << 1)
85 #define OVS_TNL_F_KEY (1 << 2)
87 #endif /* __FLOW_H_ */