2 * Copyright (c) 2015 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.
18 #define __OVS_STT_H_ 1
20 #define STT_TCP_PORT 7471
21 #define STT_TCP_PORT_NBO 0x2f1d
23 #define MAX_IP_TOTAL_LEN 65535
26 #define STT_SEQ_LEN_SHIFT 16
27 #define STT_SEQ_OFFSET_MASK ((1 << STT_SEQ_LEN_SHIFT) - 1)
28 #define STT_FRAME_LEN(seq) ((seq) >> STT_SEQ_LEN_SHIFT)
29 #define STT_SEGMENT_OFF(seq) ((seq) & STT_SEQ_OFFSET_MASK)
31 #define STT_CSUM_VERIFIED (1 << 0)
32 #define STT_CSUM_PARTIAL (1 << 1)
33 #define STT_PROTO_IPV4 (1 << 2)
34 #define STT_PROTO_TCP (1 << 3)
35 #define STT_PROTO_TYPES (STT_PROTO_IPV4 | STT_PROTO_TCP)
37 #define STT_HASH_TABLE_SIZE ((UINT32)1 << 10)
38 #define STT_HASH_TABLE_MASK (STT_HASH_TABLE_SIZE - 1)
39 #define STT_ENTRY_TIMEOUT 300000000 // 30s
40 #define STT_CLEANUP_INTERVAL 300000000 // 30s
43 typedef struct SttHdr {
53 #define STT_HDR_LEN (sizeof(SttHdr) + STT_ETH_PAD)
55 typedef struct _OVS_STT_VPORT {
59 } OVS_STT_VPORT, *POVS_STT_VPORT;
61 typedef struct _OVS_STT_PKT_KEY {
65 } OVS_STT_PKT_KEY, *POVS_STT_PKT_KEY;
67 typedef struct _OVS_STT_PKT_ENTRY {
68 OVS_STT_PKT_KEY ovsPktKey;
74 } OVS_STT_PKT_ENTRY, *POVS_STT_PKT_ENTRY;
76 typedef struct _OVS_STT_THREAD_CTX {
80 } OVS_STT_THREAD_CTX, *POVS_STT_THREAD_CTX;
82 NTSTATUS OvsInitSttTunnel(POVS_VPORT_ENTRY vport,
85 VOID OvsCleanupSttTunnel(POVS_VPORT_ENTRY vport);
87 NDIS_STATUS OvsEncapStt(POVS_VPORT_ENTRY vport,
88 PNET_BUFFER_LIST curNbl,
89 OvsIPv4TunnelKey *tunKey,
90 POVS_SWITCH_CONTEXT switchContext,
91 POVS_PACKET_HDR_INFO layers,
92 PNET_BUFFER_LIST *newNbl);
95 NDIS_STATUS OvsDecapStt(POVS_SWITCH_CONTEXT switchContext,
96 PNET_BUFFER_LIST curNbl,
97 OvsIPv4TunnelKey *tunKey,
98 PNET_BUFFER_LIST *newNbl);
100 NTSTATUS OvsInitSttDefragmentation();
102 VOID OvsCleanupSttDefragmentation(VOID);
104 static __inline UINT32
105 OvsGetSttTunHdrSize(VOID)
107 return sizeof (EthHdr) + sizeof(IPHdr) + sizeof(TCPHdr) +
111 #endif /*__OVS_STT_H_ */