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530 lines
17 KiB
530 lines
17 KiB
/*++
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Copyright (c) 1989-1993 Microsoft Corporation
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Module Name:
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spxpkt.h
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Abstract:
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Author:
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Nikhil Kamkolkar (nikhilk) 11-November-1993
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Environment:
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Kernel mode
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Revision History:
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--*/
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// Use our own NDIS packets
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//#define SPX_OWN_PACKETS 1
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//
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// List of NDIS_PACKETS stored...
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//
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extern SLIST_HEADER SendPacketList;
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extern SLIST_HEADER RecvPacketList;
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EXTERNAL_LOCK(RecvHeaderLock);
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EXTERNAL_LOCK(SendHeaderLock);
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// Offsets into the IPX header
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#define IPX_HDRSIZE 30 // Size of the IPX header
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#define IPX_CHECKSUM 0 // Checksum
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#define IPX_LENGTH 2 // Length
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#define IPX_XPORTCTL 4 // Transport Control
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#define IPX_PKTTYPE 5 // Packet Type
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#define IPX_DESTADDR 6 // Dest. Address (Total)
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#define IPX_DESTNET 6 // Dest. Network Address
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#define IPX_DESTNODE 10 // Dest. Node Address
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#define IPX_DESTSOCK 16 // Dest. Socket Number
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#define IPX_SRCADDR 18 // Source Address (Total)
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#define IPX_SRCNET 18 // Source Network Address
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#define IPX_SRCNODE 22 // Source Node Address
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#define IPX_SRCSOCK 28 // Source Socket Number
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#define IPX_NET_LEN 4
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#define IPX_NODE_LEN 6
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#include <packon.h>
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// Definition of the IPX/SPX header.
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typedef struct _IPXSPX_HEADER
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{
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USHORT hdr_CheckSum;
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USHORT hdr_PktLen;
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UCHAR hdr_XportCtrl;
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UCHAR hdr_PktType;
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UCHAR hdr_DestNet[4];
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UCHAR hdr_DestNode[6];
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USHORT hdr_DestSkt;
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UCHAR hdr_SrcNet[4];
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UCHAR hdr_SrcNode[6];
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USHORT hdr_SrcSkt;
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// SPX Header Elements
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UCHAR hdr_ConnCtrl;
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UCHAR hdr_DataType;
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USHORT hdr_SrcConnId;
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USHORT hdr_DestConnId;
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USHORT hdr_SeqNum;
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USHORT hdr_AckNum;
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USHORT hdr_AllocNum;
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// For non-CR SPXII packets only
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USHORT hdr_NegSize;
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} IPXSPX_HDR, *PIPXSPX_HDR;
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#include <packoff.h>
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// NDIS Packet size - two more ulongs added... 11/26/96
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#define NDIS_PACKET_SIZE 48+8
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// Minimum header size (doesnt include neg size)
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#define MIN_IPXSPX_HDRSIZE (sizeof(IPXSPX_HDR) - sizeof(USHORT))
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#define MIN_IPXSPX2_HDRSIZE sizeof(IPXSPX_HDR)
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#define SPX_CR_PKTLEN 42
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// SPX packet type
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#define SPX_PKT_TYPE 0x5
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// Connection control fields
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#define SPX_CC_XHD 0x01
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#define SPX_CC_RES1 0x02
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#define SPX_CC_NEG 0x04
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#define SPX_CC_SPX2 0x08
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#define SPX_CC_EOM 0x10
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#define SPX_CC_ATN 0x20
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#define SPX_CC_ACK 0x40
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#define SPX_CC_SYS 0x80
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#define SPX_CC_CR (SPX_CC_ACK | SPX_CC_SYS)
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// Data stream types
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#define SPX2_DT_ORDREL 0xFD
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#define SPX2_DT_IDISC 0xFE
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#define SPX2_DT_IDISC_ACK 0xFF
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// Negotiation size
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#define SPX_MAX_PACKET 576
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#define SPX_NEG_MIN SPX_MAX_PACKET
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#define SPX_NEG_MAX 65535
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// No packet references connection. But if the sends are being aborted, and
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// the packet happens to be owned by ipx at the time, the pkt is dequeued from
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// conn, the ABORT flag is set and conn is referenced for packet.
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//
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// Send packet states
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// ABORT : Used for aborted packet. Calls AbortSendPkt().
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// IPXOWNS : Currently owned by ipx
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// FREEDATA: Frees the data associated with second ndis buffer desc
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// ACKREQ : Only for sequenced packets. Set by retry timer in packets it wants
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// resent (1 for spx1, all pending for spx2) with ack bit set.
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// DESTROY : Only for non-sequenced packets, dequeue packet from list and free.
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// REQ : For both seq/non-seq. A request is associated with the packet
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// SEQ : Packet is a sequenced packet.
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// LASTPKT : Packet is last packet comprising the request, if acked req is done.
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// EOM : Send EOM with the last packet for this request
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// ACKEDPKT: Send completion must only deref req with pkt and complete if zero.
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//
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#define SPX_SENDPKT_IDLE 0
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#define SPX_SENDPKT_ABORT 0x0002
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#define SPX_SENDPKT_IPXOWNS 0x0004
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#define SPX_SENDPKT_FREEDATA 0x0008
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#define SPX_SENDPKT_ACKREQ 0x0010
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#define SPX_SENDPKT_DESTROY 0x0020
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#define SPX_SENDPKT_REQ 0x0040
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#define SPX_SENDPKT_SEQ 0x0080
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#define SPX_SENDPKT_LASTPKT 0x0100
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#define SPX_SENDPKT_ACKEDPKT 0x0200
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#define SPX_SENDPKT_EOM 0x0400
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#define SPX_SENDPKT_REXMIT 0x0800
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// Packet types
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#define SPX_TYPE_CR 0x01
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#define SPX_TYPE_CRACK 0x02
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#define SPX_TYPE_SN 0x03
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#define SPX_TYPE_SNACK 0x04
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#define SPX_TYPE_SS 0x05
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#define SPX_TYPE_SSACK 0x06
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#define SPX_TYPE_RR 0x07
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#define SPX_TYPE_RRACK 0x08
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#define SPX_TYPE_IDISC 0x09
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#define SPX_TYPE_IDISCACK 0x0a
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#define SPX_TYPE_ORDREL 0x0b
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#define SPX_TYPE_ORDRELACK 0x0c
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#define SPX_TYPE_DATA 0x0d
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#define SPX_TYPE_DATAACK 0x0e
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#define SPX_TYPE_DATANACK 0x0f
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#define SPX_TYPE_PROBE 0x10
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// Definition of the protocol reserved field of a send packet.
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// Make Len/HdrLen USHORTS, move to the end before the
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// sr_SentTime so we dont use padding space.
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typedef struct _SPX_SEND_RESD
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{
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UCHAR sr_Id; // Set to SPX
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UCHAR sr_Type; // What kind of packet
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USHORT sr_State; // State of send packet
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PVOID sr_Reserved1; // Needed by IPX
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PVOID sr_Reserved2; // Needed by IPX
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#if defined(_PNP_POWER)
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PVOID sr_Reserved[SEND_RESERVED_COMMON_SIZE-2]; // needed by IPX for local target
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#endif _PNP_POWER
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ULONG sr_Len; // Length of packet
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ULONG sr_HdrLen; // Included header length
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struct _SPX_SEND_RESD * sr_Next; // Points to next packet
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// in send queue in conn.
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PREQUEST sr_Request; // request associated
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ULONG sr_Offset; // Offset in mdl for sends
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#ifndef SPX_OWN_PACKETS
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PVOID sr_FreePtr; // Ptr to use in free chunk
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#endif
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struct _SPX_CONN_FILE * sr_ConnFile; // that this send is on
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USHORT sr_SeqNum; // Seq num for seq pkts
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// Quad word aligned.
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LARGE_INTEGER sr_SentTime; // Time packet was sent
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// Only valid for data pkt
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// with ACKREQ set.
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SINGLE_LIST_ENTRY Linkage;
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} SPX_SEND_RESD, *PSPX_SEND_RESD;
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// Recv packet states
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#define SPX_RECVPKT_IDLE 0
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#define SPX_RECVPKT_BUFFERING 0x0001
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#define SPX_RECVPKT_IDISC 0x0002
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#define SPX_RECVPKT_ORD_DISC 0x0004
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#define SPX_RECVPKT_INDICATED 0x0008
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#define SPX_RECVPKT_SENDACK 0x0010
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#define SPX_RECVPKT_EOM 0x0020
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#define SPX_RECVPKT_IMMEDACK 0x0040
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#define SPX_RECVPKT_DISCMASK (SPX_RECVPKT_ORD_DISC | SPX_RECVPKT_IDISC)
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// Definition of the protocol reserved field of a receive packet.
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typedef struct _SPX_RECV_RESD
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{
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UCHAR rr_Id; // Set to SPX
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USHORT rr_State; // State of receive packet
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struct _SPX_RECV_RESD * rr_Next; // Points to next packet
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ULONG rr_DataOffset; // To indicate/copy from
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#ifndef SPX_OWN_PACKETS
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PVOID rr_FreePtr; // Ptr to use in free chunk
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#endif
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#if DBG
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USHORT rr_SeqNum; // Seq num of packet
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#endif
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SINGLE_LIST_ENTRY Linkage;
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PREQUEST rr_Request; // request waiting on xfer
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struct _SPX_CONN_FILE * rr_ConnFile; // that this recv is on
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} SPX_RECV_RESD, *PSPX_RECV_RESD;
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// Destination built as an assign of 3 ulongs.
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#define SpxBuildIpxHdr(pIpxSpxHdr, PktLen, pRemAddr, SrcSkt) \
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{ \
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PBYTE pDestIpxAddr = (PBYTE)pIpxSpxHdr->hdr_DestNet; \
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(pIpxSpxHdr)->hdr_CheckSum = 0xFFFF; \
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PUTSHORT2SHORT((PUSHORT)(&(pIpxSpxHdr)->hdr_PktLen), (PktLen)); \
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(pIpxSpxHdr)->hdr_XportCtrl = 0; \
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(pIpxSpxHdr)->hdr_PktType = SPX_PKT_TYPE; \
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*((UNALIGNED ULONG *)pDestIpxAddr) = \
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*((UNALIGNED ULONG *)pRemAddr); \
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*((UNALIGNED ULONG *)(pDestIpxAddr+4)) = \
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*((UNALIGNED ULONG *)(pRemAddr+4)); \
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*((UNALIGNED ULONG *)(pDestIpxAddr+8)) = \
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*((UNALIGNED ULONG *)(pRemAddr+8)); \
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*((UNALIGNED ULONG *)((pIpxSpxHdr)->hdr_SrcNet))= \
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*((UNALIGNED ULONG *)(SpxDevice->dev_Network)); \
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*((UNALIGNED ULONG *)((pIpxSpxHdr)->hdr_SrcNode)) = \
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*((UNALIGNED ULONG *)SpxDevice->dev_Node); \
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*((UNALIGNED USHORT *)((pIpxSpxHdr)->hdr_SrcNode+4)) = \
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*((UNALIGNED USHORT *)(SpxDevice->dev_Node+4)); \
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*((UNALIGNED USHORT *)&((pIpxSpxHdr)->hdr_SrcSkt)) = \
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SrcSkt; \
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}
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#define SpxCopyIpxAddr(pIpxSpxHdr, pDestIpxAddr) \
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{ \
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PBYTE pRemAddr = (PBYTE)pIpxSpxHdr->hdr_SrcNet; \
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*((UNALIGNED ULONG *)pDestIpxAddr) = \
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*((UNALIGNED ULONG *)pRemAddr); \
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*((UNALIGNED ULONG *)(pDestIpxAddr+4)) = \
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*((UNALIGNED ULONG *)(pRemAddr+4)); \
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*((UNALIGNED ULONG *)(pDestIpxAddr+8)) = \
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*((UNALIGNED ULONG *)(pRemAddr+8)); \
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}
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#ifdef UNDEFINDED
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#define SpxAllocRecvPacket(_Device,_RecvPacket,_Status) \
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{ \
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PSINGLE_LIST_ENTRY Link; \
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\
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Link = ExInterlockedPopEntrySList( \
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&PacketList, \
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&HeaderLock \
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); \
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\
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if (Link != NULL) { \
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Common = STRUCT_OF(struct PCCommon, Link, pc_link); \
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PC = STRUCT_OF(PacketContext, Common, pc_common); \
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(*_RecvPacket) = STRUCT_OF(NDIS_PACKET, PC, ProtocolReserved); \
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(*_Status) = NDIS_STATUS_SUCCESS; \
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} else { \
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\
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(*_RecvPacket) = GrowSPXPacketsList(); \
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(*_Status) = NDIS_STATUS_SUCCESS; \
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if (NULL == _RecvPacket) { \
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DBGPRINT(NDIS, ("Couldn't grow packets allocated...\r\n")); \
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(*_Status) = NDIS_STATUS_RESOURCES; \
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} \
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} \
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}
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#define SpxFreeSendPacket(_Device,_Packet) \
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{ \
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DBGPRINT(NDIS \
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("SpxFreeSendPacket\n")); \
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SpxFreePacket(_Device, _Packet); \
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} \
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#define SpxFreeRecvPacket(_Device,_Packet) \
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{ \
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DBGPRINT(NDIS \
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("SpxFreeRecvPacket\n")); \
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SpxFreePacket(_Device, _Packet); \
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} \
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#define SpxReInitSendPacket(_Packet) \
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{ \
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DBGPRINT(NDIS \
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("SpxReInitSendPacket\n")); \
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} \
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#define SpxReInitRecvPacket(_Packet) \
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{ \
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DBGPRINT(NDIS, \
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("SpxReInitRecvPacket\n")); \
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}
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\
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#endif
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#if !defined SPX_OWN_PACKETS
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#define SEND_RESD(_Packet) ((PSPX_SEND_RESD)((_Packet)->ProtocolReserved))
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#define RECV_RESD(_Packet) ((PSPX_RECV_RESD)((_Packet)->ProtocolReserved))
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#else
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#define SpxAllocSendPacket(_Device, _SendPacket, _Status) \
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{ \
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if (*(_SendPacket) = SpxBPAllocBlock(BLKID_NDISSEND)) \
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*(_Status) = NDIS_STATUS_SUCCESS; \
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else \
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*(_Status) = NDIS_STATUS_RESOURCES; \
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}
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#define SpxAllocRecvPacket(_Device,_RecvPacket,_Status) \
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{ \
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if (*(_RecvPacket) = SpxBPAllocBlock(BLKID_NDISRECV)) \
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*(_Status) = NDIS_STATUS_SUCCESS; \
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else \
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*(_Status) = NDIS_STATUS_RESOURCES; \
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}
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#define SpxFreeSendPacket(_Device,_Packet) \
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{ \
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SpxBPFreeBlock(_Packet, BLKID_NDISSEND); \
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}
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#define SpxFreeRecvPacket(_Device,_Packet) \
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{ \
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SpxBPFreeBlock(_Packet, BLKID_NDISRECV); \
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}
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#define SpxReInitSendPacket(_Packet) \
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{ \
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}
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#define SpxReInitRecvPacket(_Packet) \
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{ \
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}
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#define SEND_RESD(_Packet) ((PSPX_SEND_RESD)((_Packet)->ProtocolReserved))
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#define RECV_RESD(_Packet) ((PSPX_RECV_RESD)((_Packet)->ProtocolReserved))
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#endif
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#if !defined SPX_OWN_PACKETS
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//
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// If we DO NOT use SPX_OWN_PACKETS, we would rather make it a function call
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//
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PNDIS_PACKET
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SpxAllocSendPacket(
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IN PDEVICE _Device,
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OUT PNDIS_PACKET *_SendPacket,
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OUT PNDIS_STATUS _Status
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);
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PNDIS_PACKET
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SpxAllocRecvPacket(
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IN PDEVICE _Device,
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OUT PNDIS_PACKET *_SendPacket,
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OUT PNDIS_STATUS _Status
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);
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void
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SpxFreeSendPacket(
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PDEVICE _Device,
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PNDIS_PACKET _Packet
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);
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void
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SpxFreeRecvPacket(
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PDEVICE _Device,
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PNDIS_PACKET _Packet
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);
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void
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SpxReInitSendPacket(
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PNDIS_PACKET _Packet
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);
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void
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SpxReInitRecvPacket(
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PNDIS_PACKET _Packet
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);
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#endif // SPX_OWN_PACKETS
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//
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// Routine Prototypes
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//
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VOID
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SpxPktBuildCr(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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IN struct _SPX_ADDR * pSpxAddr,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN BOOLEAN fSpx2);
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VOID
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SpxPktBuildCrAck(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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IN struct _SPX_ADDR * pSpxAddr,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN BOOLEAN fNeg,
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IN BOOLEAN fSpx2);
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VOID
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SpxPktBuildSn(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State);
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VOID
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SpxPktBuildSs(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State);
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VOID
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SpxPktBuildSsAck(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State);
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VOID
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SpxPktBuildSnAck(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State);
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VOID
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SpxPktBuildRr(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT SeqNum,
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IN USHORT State);
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VOID
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SpxPktBuildRrAck(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN USHORT MaxPktSize);
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VOID
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SpxPktBuildProbe(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN BOOLEAN fSpx2);
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VOID
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SpxPktBuildData(
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IN struct _SPX_CONN_FILE * pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN USHORT Length);
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VOID
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SpxCopyBufferChain(
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OUT PNDIS_STATUS Status,
|
|
OUT PNDIS_BUFFER * TargetChain,
|
|
IN NDIS_HANDLE PoolHandle,
|
|
IN PNDIS_BUFFER SourceChain,
|
|
IN UINT Offset,
|
|
IN UINT Length
|
|
);
|
|
|
|
VOID
|
|
SpxPktBuildAck(
|
|
IN struct _SPX_CONN_FILE * pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN BOOLEAN fBuildNack,
|
|
IN USHORT NumToResend);
|
|
|
|
VOID
|
|
SpxPktBuildDisc(
|
|
IN struct _SPX_CONN_FILE * pSpxConnFile,
|
|
IN PREQUEST pRequest,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN UCHAR DataType);
|
|
|
|
VOID
|
|
SpxPktRecvRelease(
|
|
IN PNDIS_PACKET pPkt);
|
|
|
|
VOID
|
|
SpxPktSendRelease(
|
|
IN PNDIS_PACKET pPkt);
|