1 files changed, 73 insertions, 0 deletions
diff --git a/datapath-windows/ovsext/IpFragment.h b/datapath-windows/ovsext/IpFragment.h
new file mode 100644
index 000000000..e650399e6
--- /dev/null
+++ b/datapath-windows/ovsext/IpFragment.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2017 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 __IPFRAGMENT_H_
+#define __IPFRAGMENT_H_ 1
+#include "PacketIO.h"
+
+typedef struct _OVS_FRAGMENT_LIST {
+    CHAR *pbuff;
+    UINT16 len;
+    UINT16 offset;
+    struct _OVS_FRAGMENT_LIST *next;
+} OVS_FRAGMENT_LIST, *POVS_FRAGMENT_LIST;
+
+typedef struct _OVS_IPFRAG_KEY {
+    UINT8 protocol;
+    UINT8 pad_1[3];             /* Align the structure to address boundaries.*/
+    UINT16 id;
+    UINT16 pad_2;               /* Align the structure to address boundaries.*/
+    UINT32 sAddr;
+    UINT32 dAddr;
+    ovs_be64 tunnelId;
+} OVS_IPFRAG_KEY, *POVS_IPFRAG_KEY;
+
+typedef struct _OVS_IPFRAG_ENTRY {
+    NDIS_SPIN_LOCK lockObj;       /* To access the entry. */
+    UINT16 totalLen;
+    UINT16 recvdLen;
+    UINT16 mru;
+    UINT64 expiration;
+    OVS_IPFRAG_KEY fragKey;
+    POVS_FRAGMENT_LIST head;
+    POVS_FRAGMENT_LIST tail;
+    LIST_ENTRY link;
+} OVS_IPFRAG_ENTRY, *POVS_IPFRAG_ENTRY;
+
+typedef struct _OVS_IPFRAG_THREAD_CTX {
+    KEVENT event;
+    PVOID threadObject;
+    UINT32 exit;
+} OVS_IPFRAG_THREAD_CTX, *POVS_IPFRAG_THREAD_CTX;
+
+#define IP_FRAG_HASH_TABLE_SIZE ((UINT32)1 << 10)
+#define IP_FRAG_HASH_TABLE_MASK (IP_FRAG_HASH_TABLE_SIZE - 1)
+/*30s -Sufficient time to recieve all fragments.*/
+#define IPFRAG_ENTRY_TIMEOUT 300000000LL
+#define IPFRAG_CLEANUP_INTERVAL IPFRAG_ENTRY_TIMEOUT * 2 /*1m.*/
+PNET_BUFFER_LIST OvsIpv4FragmentNBL(PVOID ovsContext,
+                                    PNET_BUFFER_LIST nbl,
+                                    UINT16 mru);
+
+NDIS_STATUS OvsProcessIpv4Fragment(POVS_SWITCH_CONTEXT switchContext,
+                                   PNET_BUFFER_LIST *curNbl,
+                                   OvsCompletionList *completionList,
+                                   NDIS_SWITCH_PORT_ID sourcePort,
+                                   ovs_be64 tunnelId,
+                                   PNET_BUFFER_LIST *newNbl);
+NDIS_STATUS OvsInitIpFragment(POVS_SWITCH_CONTEXT context);
+VOID OvsCleanupIpFragment(VOID);
+#endif /* __IPFRAGMENT_H_ */