2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS TCP/IP protocol driver
4 * FILE: include/receive.h
5 * PURPOSE: Internet Protocol receive prototypes
12 /* Number of seconds before destroying the IPDR */
13 #define MAX_TIMEOUT_COUNT 5
15 /* IP datagram fragment descriptor. Used to store IP datagram fragments */
16 typedef struct IP_FRAGMENT
{
17 LIST_ENTRY ListEntry
; /* Entry on list */
18 PNDIS_PACKET Packet
; /* NDIS packet containing fragment data */
19 UINT PacketOffset
; /* Offset into NDIS packet where data is */
20 UINT Offset
; /* Offset into datagram where this fragment is */
21 UINT Size
; /* Size of this fragment */
22 } IP_FRAGMENT
, *PIP_FRAGMENT
;
24 /* IP datagram hole descriptor. Used to reassemble IP datagrams */
25 typedef struct IPDATAGRAM_HOLE
{
26 LIST_ENTRY ListEntry
; /* Entry on list */
27 UINT First
; /* Offset of first octet of the hole */
28 UINT Last
; /* Offset of last octet of the hole */
29 } IPDATAGRAM_HOLE
, *PIPDATAGRAM_HOLE
;
31 /* IP datagram reassembly information */
32 typedef struct IPDATAGRAM_REASSEMBLY
{
33 LIST_ENTRY ListEntry
; /* Entry on list */
34 KSPIN_LOCK Lock
; /* Protecting spin lock */
35 UINT DataSize
; /* Size of datagram data area */
36 IP_ADDRESS SrcAddr
; /* Source address */
37 IP_ADDRESS DstAddr
; /* Destination address */
38 UCHAR Protocol
; /* Internet Protocol number */
39 USHORT Id
; /* Identification number */
40 IP_HEADER IPv4Header
; /* Pointer to IP header */
41 UINT HeaderSize
; /* Length of IP header */
42 LIST_ENTRY FragmentListHead
; /* IP fragment list */
43 LIST_ENTRY HoleListHead
; /* IP datagram hole list */
44 UINT TimeoutCount
; /* Timeout counter */
45 } IPDATAGRAM_REASSEMBLY
, *PIPDATAGRAM_REASSEMBLY
;
48 extern LIST_ENTRY ReassemblyListHead
;
49 extern KSPIN_LOCK ReassemblyListLock
;
50 extern NPAGED_LOOKASIDE_LIST IPDRList
;
51 extern NPAGED_LOOKASIDE_LIST IPFragmentList
;
52 extern NPAGED_LOOKASIDE_LIST IPHoleList
;
55 VOID
IPFreeReassemblyList(
58 VOID
IPDatagramReassemblyTimeout(