1729 lines
40 KiB
C
1729 lines
40 KiB
C
/*++
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Copyright (c) 1989-1993 Microsoft Corporation
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Module Name:
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spxpkt.c
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Abstract:
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This module contains code that builds various spx packets.
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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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#include "precomp.h"
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#pragma hdrstop
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// Define module number for event logging entries
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#define FILENUM SPXPKT
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VOID
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SpxPktBuildCr(
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IN PSPX_CONN_FILE pSpxConnFile,
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IN PSPX_ADDR pSpxAddr,
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IN OUT PNDIS_PACKET * ppPkt,
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IN USHORT State,
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IN BOOLEAN fSpx2
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)
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/*++
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Routine Description:
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NOTE: If *ppPkt is NULL, we allocate a packet. If not, we just
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recreate the data and don't update the packet's state.
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Arguments:
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Return Value:
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--*/
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{
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PNDIS_PACKET pCrPkt;
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PSPX_SEND_RESD pSendResd;
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NDIS_STATUS ndisStatus;
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PIPXSPX_HDR pIpxSpxHdr;
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PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
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PNDIS_BUFFER NdisBuf, NdisBuf2;
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ULONG BufLen = 0;
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if (*ppPkt == NULL) {
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SpxAllocSendPacket(SpxDevice, &pCrPkt, &ndisStatus);
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if (ndisStatus != NDIS_STATUS_SUCCESS)
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{
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DBGPRINT(CONNECT, ERR,
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("SpxConnHandleConnReq: Could not allocate ndis packet\n"));
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return;
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}
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} else {
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pCrPkt = *ppPkt;
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}
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//
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// Get the MDL that points to the IPX/SPX header. (the second one)
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//
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NdisQueryPacket(pCrPkt, NULL, NULL, &NdisBuf, NULL);
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NdisGetNextBuffer(NdisBuf, &NdisBuf2);
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NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
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#if OWN_PKT_POOLS
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pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pCrPkt +
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NDIS_PACKET_SIZE +
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sizeof(SPX_SEND_RESD) +
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IpxInclHdrOffset);
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#endif
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NdisQueryPacket(pCrPkt, NULL, NULL, &pNdisMacHdr, NULL);
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pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
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if (!fSpx2)
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{
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NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
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}
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SpxBuildIpxHdr(
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pIpxSpxHdr,
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MIN_IPXSPX_HDRSIZE,
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pSpxConnFile->scf_RemAddr,
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pSpxAddr->sa_Socket);
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// Build SPX Header.
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pIpxSpxHdr->hdr_ConnCtrl = (SPX_CC_SYS | SPX_CC_ACK |
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(fSpx2 ? (SPX_CC_SPX2 | SPX_CC_NEG) : 0));
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pIpxSpxHdr->hdr_DataType = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_SrcConnId,
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pSpxConnFile->scf_LocalConnId);
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pIpxSpxHdr->hdr_DestConnId = 0xFFFF;
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pIpxSpxHdr->hdr_SeqNum = 0;
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pIpxSpxHdr->hdr_AckNum = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_AllocNum,
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pSpxConnFile->scf_SentAllocNum);
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// Initialize
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if (*ppPkt == NULL) {
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pSendResd = (PSPX_SEND_RESD)(pCrPkt->ProtocolReserved);
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pSendResd->sr_Id = IDENTIFIER_SPX;
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pSendResd->sr_Type = SPX_TYPE_CR;
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pSendResd->sr_Reserved1 = NULL;
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pSendResd->sr_Reserved2 = NULL;
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pSendResd->sr_State = State;
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pSendResd->sr_ConnFile = pSpxConnFile;
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pSendResd->sr_Request = NULL;
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pSendResd->sr_Next = NULL;
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pSendResd->sr_Len = pSendResd->sr_HdrLen = MIN_IPXSPX_HDRSIZE;
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*ppPkt = pCrPkt;
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}
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return;
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}
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VOID
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SpxPktBuildCrAck(
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IN PSPX_CONN_FILE pSpxConnFile,
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IN PSPX_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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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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PNDIS_PACKET pCrAckPkt;
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PSPX_SEND_RESD pSendResd;
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PIPXSPX_HDR pIpxSpxHdr;
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NDIS_STATUS ndisStatus;
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USHORT hdrLen;
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PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
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PNDIS_BUFFER NdisBuf, NdisBuf2;
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ULONG BufLen = 0;
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*ppPkt = NULL;
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SpxAllocSendPacket(SpxDevice, &pCrAckPkt, &ndisStatus);
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if (ndisStatus != NDIS_STATUS_SUCCESS)
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{
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DBGPRINT(CONNECT, ERR,
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("SpxConnHandleConnReq: Could not allocate ndis packet\n"));
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return;
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}
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//
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// Get the MDL that points to the IPX/SPX header. (the second one)
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//
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NdisQueryPacket(pCrAckPkt, NULL, NULL, &NdisBuf, NULL);
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NdisGetNextBuffer(NdisBuf, &NdisBuf2);
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NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
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#if OWN_PKT_POOLS
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pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pCrAckPkt +
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NDIS_PACKET_SIZE +
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sizeof(SPX_SEND_RESD) +
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IpxInclHdrOffset);
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#endif
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hdrLen = (SPX2_CONN(pSpxConnFile) ? MIN_IPXSPX2_HDRSIZE : MIN_IPXSPX_HDRSIZE);
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NdisQueryPacket(pCrAckPkt, NULL, NULL, &pNdisMacHdr, NULL);
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pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
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if (!SPX2_CONN(pSpxConnFile))
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{
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NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
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}
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SpxBuildIpxHdr(
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pIpxSpxHdr,
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hdrLen,
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pSpxConnFile->scf_RemAddr,
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pSpxAddr->sa_Socket);
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pIpxSpxHdr->hdr_ConnCtrl =
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(SPX_CC_SYS |
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(fSpx2 ? SPX_CC_SPX2 : 0) |
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(fNeg ? SPX_CC_NEG : 0));
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pIpxSpxHdr->hdr_DataType = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_SrcConnId,
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pSpxConnFile->scf_LocalConnId);
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pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
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pIpxSpxHdr->hdr_SeqNum = 0;
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pIpxSpxHdr->hdr_AckNum = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_AllocNum,
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pSpxConnFile->scf_SentAllocNum);
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if (SPX2_CONN(pSpxConnFile))
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{
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DBGPRINT(CONNECT, DBG,
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("SpxConnBuildCrAck: Spx2 packet size %d.%lx\n",
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pSpxConnFile->scf_MaxPktSize));
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_NegSize,
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pSpxConnFile->scf_MaxPktSize);
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}
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pSendResd = (PSPX_SEND_RESD)(pCrAckPkt->ProtocolReserved);
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pSendResd->sr_Id = IDENTIFIER_SPX;
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pSendResd->sr_Type = SPX_TYPE_CRACK;
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pSendResd->sr_Reserved1 = NULL;
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pSendResd->sr_Reserved2 = NULL;
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pSendResd->sr_State = State;
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pSendResd->sr_ConnFile = pSpxConnFile;
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pSendResd->sr_Request = NULL;
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pSendResd->sr_Next = NULL;
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pSendResd->sr_Len = pSendResd->sr_HdrLen = hdrLen;
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*ppPkt = pCrAckPkt;
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return;
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}
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VOID
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SpxPktBuildSn(
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IN PSPX_CONN_FILE pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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PNDIS_PACKET pPkt;
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PSPX_SEND_RESD pSendResd;
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PNDIS_BUFFER pBuf;
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NDIS_STATUS ndisStatus;
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PIPXSPX_HDR pIpxSpxHdr;
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PBYTE pData;
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PNDIS_BUFFER NdisBuf, NdisBuf2;
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ULONG BufLen = 0;
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do
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{
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*ppPkt = NULL;
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// Allocate a ndis packet for the cr.
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SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
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if (ndisStatus != NDIS_STATUS_SUCCESS)
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{
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break;
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}
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CTEAssert(pSpxConnFile->scf_MaxPktSize != 0);
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DBGPRINT(SEND, DBG,
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("SpxPktBuildSn: Data size %lx\n", pSpxConnFile->scf_MaxPktSize));
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if ((pData =
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SpxAllocateMemory(
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pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE)) == NULL)
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{
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SpxPktSendRelease(pPkt);
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break;
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}
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// Build ndis buffer desc
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NdisAllocateBuffer(
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&ndisStatus,
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&pBuf,
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SpxDevice->dev_NdisBufferPoolHandle,
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pData,
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pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE);
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if (ndisStatus != NDIS_STATUS_SUCCESS)
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{
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SpxPktSendRelease(pPkt);
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SpxFreeMemory(pData);
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break;
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}
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// Chain at back.
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NdisChainBufferAtBack(
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pPkt,
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pBuf);
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//
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// Get the MDL that points to the IPX/SPX header. (the second one)
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//
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NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
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NdisGetNextBuffer(NdisBuf, &NdisBuf2);
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NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
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#if OWN_PKT_POOLS
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pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
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NDIS_PACKET_SIZE +
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sizeof(SPX_SEND_RESD) +
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IpxInclHdrOffset);
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#endif
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SpxBuildIpxHdr(
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pIpxSpxHdr,
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pSpxConnFile->scf_MaxPktSize,
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pSpxConnFile->scf_RemAddr,
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pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
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// Build SPX Header.
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pIpxSpxHdr->hdr_ConnCtrl = ( SPX_CC_SYS | SPX_CC_ACK |
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SPX_CC_NEG | SPX_CC_SPX2);
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pIpxSpxHdr->hdr_DataType = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_SrcConnId,
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pSpxConnFile->scf_LocalConnId);
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pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
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pIpxSpxHdr->hdr_SeqNum = 0;
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pIpxSpxHdr->hdr_AckNum = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_AllocNum,
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pSpxConnFile->scf_SentAllocNum);
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_NegSize,
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pSpxConnFile->scf_MaxPktSize);
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// Init the data part to indicate no neg values
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*(UNALIGNED ULONG *)pData = 0;
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pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
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pSendResd->sr_Id = IDENTIFIER_SPX;
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pSendResd->sr_Type = SPX_TYPE_SN;
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pSendResd->sr_Reserved1 = NULL;
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pSendResd->sr_Reserved2 = NULL;
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pSendResd->sr_State = (State | SPX_SENDPKT_FREEDATA);
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pSendResd->sr_ConnFile = pSpxConnFile;
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pSendResd->sr_Request = NULL;
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pSendResd->sr_Next = NULL;
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pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
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pSendResd->sr_Len = pSpxConnFile->scf_MaxPktSize;
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*ppPkt = pPkt;
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} while (FALSE);
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return;
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}
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VOID
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SpxPktBuildSnAck(
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IN PSPX_CONN_FILE pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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PNDIS_PACKET pPkt;
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NDIS_STATUS ndisStatus;
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PIPXSPX_HDR pIpxSpxHdr;
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PSPX_SEND_RESD pSendResd;
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PNDIS_BUFFER NdisBuf, NdisBuf2;
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ULONG BufLen = 0;
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do
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{
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*ppPkt = NULL;
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// Allocate a ndis packet for the cr.
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SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
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if (ndisStatus != NDIS_STATUS_SUCCESS)
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{
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break;
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}
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#if OWN_PKT_POOLS
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pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
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NDIS_PACKET_SIZE +
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sizeof(SPX_SEND_RESD) +
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IpxInclHdrOffset);
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#endif
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//
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// Get the MDL that points to the IPX/SPX header. (the second one)
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//
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NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
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NdisGetNextBuffer(NdisBuf, &NdisBuf2);
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NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
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SpxBuildIpxHdr(
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pIpxSpxHdr,
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MIN_IPXSPX2_HDRSIZE,
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pSpxConnFile->scf_RemAddr,
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pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
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// Build SPX Header.
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pIpxSpxHdr->hdr_ConnCtrl = (SPX_CC_SYS | SPX_CC_NEG | SPX_CC_SPX2);
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pIpxSpxHdr->hdr_DataType = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_SrcConnId,
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pSpxConnFile->scf_LocalConnId);
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pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
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pIpxSpxHdr->hdr_SeqNum = 0;
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pIpxSpxHdr->hdr_AckNum = 0;
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_AllocNum,
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pSpxConnFile->scf_SentAllocNum);
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PUTSHORT2SHORT(
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&pIpxSpxHdr->hdr_NegSize,
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pSpxConnFile->scf_MaxPktSize);
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pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
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pSendResd->sr_Id = IDENTIFIER_SPX;
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pSendResd->sr_Type = SPX_TYPE_SNACK;
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pSendResd->sr_Reserved1 = NULL;
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pSendResd->sr_Reserved2 = NULL;
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pSendResd->sr_State = State;
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pSendResd->sr_ConnFile = pSpxConnFile;
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pSendResd->sr_Request = NULL;
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pSendResd->sr_Next = NULL;
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pSendResd->sr_Len = pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
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*ppPkt = pPkt;
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} while (FALSE);
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return;
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}
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VOID
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SpxPktBuildSs(
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IN PSPX_CONN_FILE pSpxConnFile,
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OUT PNDIS_PACKET * ppPkt,
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IN USHORT State
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)
|
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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PNDIS_PACKET pPkt;
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PSPX_SEND_RESD pSendResd;
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PNDIS_BUFFER pBuf;
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NDIS_STATUS ndisStatus;
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PIPXSPX_HDR pIpxSpxHdr;
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PBYTE pData;
|
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PNDIS_BUFFER NdisBuf, NdisBuf2;
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ULONG BufLen = 0;
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|
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do
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{
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*ppPkt = NULL;
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|
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// Allocate a ndis packet for the cr.
|
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SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
|
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if (ndisStatus != NDIS_STATUS_SUCCESS)
|
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{
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break;
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}
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|
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CTEAssert(pSpxConnFile->scf_MaxPktSize != 0);
|
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DBGPRINT(SEND, DBG,
|
|
("SpxPktBuildSs: Data size %lx\n", pSpxConnFile->scf_MaxPktSize));
|
|
|
|
if ((pData =
|
|
SpxAllocateMemory(
|
|
pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE)) == NULL)
|
|
{
|
|
SpxPktSendRelease(pPkt);
|
|
break;
|
|
}
|
|
|
|
// Build ndis buffer desc
|
|
NdisAllocateBuffer(
|
|
&ndisStatus,
|
|
&pBuf,
|
|
SpxDevice->dev_NdisBufferPoolHandle,
|
|
pData,
|
|
pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE);
|
|
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
SpxPktSendRelease(pPkt);
|
|
SpxFreeMemory(pData);
|
|
break;
|
|
}
|
|
|
|
// Chain at back.
|
|
NdisChainBufferAtBack(
|
|
pPkt,
|
|
pBuf);
|
|
|
|
#if OWN_PKT_POOLS
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
pSpxConnFile->scf_MaxPktSize,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl =
|
|
(SPX_CC_SYS | SPX_CC_ACK | SPX_CC_SPX2 |
|
|
((pSpxConnFile->scf_Flags & SPX_CONNFILE_NEG) ? SPX_CC_NEG : 0));
|
|
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
|
|
pIpxSpxHdr->hdr_SeqNum = 0;
|
|
pIpxSpxHdr->hdr_AckNum = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
|
|
// Init the data part to indicate no neg values
|
|
*(UNALIGNED ULONG *)pData = 0;
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = SPX_TYPE_SS;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = (State | SPX_SENDPKT_FREEDATA);
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
|
|
pSendResd->sr_Len = pSpxConnFile->scf_MaxPktSize;
|
|
|
|
*ppPkt = pPkt;
|
|
} while (FALSE);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildSsAck(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PNDIS_PACKET pPkt;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
do
|
|
{
|
|
*ppPkt = NULL;
|
|
|
|
// Allocate a ndis packet for the cr.
|
|
SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
MIN_IPXSPX2_HDRSIZE,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl =
|
|
(SPX_CC_SYS | SPX_CC_SPX2 |
|
|
((pSpxConnFile->scf_Flags & SPX_CONNFILE_NEG) ? SPX_CC_NEG : 0));
|
|
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
|
|
pIpxSpxHdr->hdr_SeqNum = 0;
|
|
pIpxSpxHdr->hdr_AckNum = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = SPX_TYPE_SSACK;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Len = pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
|
|
|
|
*ppPkt = pPkt;
|
|
|
|
} while (FALSE);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildRr(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT SeqNum,
|
|
IN USHORT State
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PNDIS_PACKET pPkt;
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_BUFFER pBuf;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
PBYTE pData;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
do
|
|
{
|
|
*ppPkt = NULL;
|
|
|
|
// Allocate a ndis packet for the cr.
|
|
SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if ((pData =
|
|
SpxAllocateMemory(
|
|
pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE)) == NULL)
|
|
{
|
|
SpxPktSendRelease(pPkt);
|
|
break;
|
|
}
|
|
|
|
// Build ndis buffer desc
|
|
NdisAllocateBuffer(
|
|
&ndisStatus,
|
|
&pBuf,
|
|
SpxDevice->dev_NdisBufferPoolHandle,
|
|
pData,
|
|
pSpxConnFile->scf_MaxPktSize - MIN_IPXSPX2_HDRSIZE);
|
|
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
SpxPktSendRelease(pPkt);
|
|
SpxFreeMemory(pData);
|
|
break;
|
|
}
|
|
|
|
// Chain at back.
|
|
NdisChainBufferAtBack(
|
|
pPkt,
|
|
pBuf);
|
|
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
pSpxConnFile->scf_MaxPktSize,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl = ( SPX_CC_SYS | SPX_CC_ACK |
|
|
SPX_CC_NEG | SPX_CC_SPX2);
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
|
|
|
|
// For a renegotiate request, we use the sequence number of
|
|
// the first waiting data packet. Passed in.
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
SeqNum);
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RecvSeqNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
|
|
// Init the data part to indicate no neg values
|
|
*(UNALIGNED ULONG *)pData = 0;
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = SPX_TYPE_RR;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = (State | SPX_SENDPKT_FREEDATA);
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_SeqNum = SeqNum;
|
|
pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
|
|
pSendResd->sr_Len = pSpxConnFile->scf_MaxPktSize;
|
|
|
|
*ppPkt = pPkt;
|
|
|
|
} while (FALSE);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildRrAck(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN USHORT MaxPktSize
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PNDIS_PACKET pPkt;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
do
|
|
{
|
|
*ppPkt = NULL;
|
|
|
|
// Allocate a ndis packet for the cr.
|
|
SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
MIN_IPXSPX2_HDRSIZE,
|
|
pSpxConnFile->scf_RemAckAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl = (SPX_CC_SYS | SPX_CC_NEG | SPX_CC_SPX2);
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
pSpxConnFile->scf_SendSeqNum);
|
|
|
|
// For the RrAck, ack number will be the appropriate number
|
|
// for the last data packet received.
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RenegAckAckNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
MaxPktSize);
|
|
|
|
DBGPRINT(SEND, DBG3,
|
|
("SpxPktBuildRrAck: SEQ %lx ACKNUM %lx ALLOCNUM %lx MAXPKT %lx\n",
|
|
pSpxConnFile->scf_SendSeqNum,
|
|
pSpxConnFile->scf_RenegAckAckNum,
|
|
pSpxConnFile->scf_SentAllocNum,
|
|
MaxPktSize));
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = SPX_TYPE_RRACK;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Len = pSendResd->sr_HdrLen = MIN_IPXSPX2_HDRSIZE;
|
|
|
|
*ppPkt = pPkt;
|
|
|
|
} while (FALSE);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildDisc(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
IN PREQUEST pRequest,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN UCHAR DataType
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_PACKET pDiscPkt;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
USHORT hdrLen;
|
|
PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
|
|
*ppPkt = NULL;
|
|
|
|
SpxAllocSendPacket(SpxDevice, &pDiscPkt, &ndisStatus);
|
|
if (ndisStatus == NDIS_STATUS_SUCCESS)
|
|
{
|
|
#if OWN_PKT_POOLS
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pDiscPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pDiscPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
hdrLen = SPX2_CONN(pSpxConnFile) ? MIN_IPXSPX2_HDRSIZE : MIN_IPXSPX_HDRSIZE;
|
|
NdisQueryPacket(pDiscPkt, NULL, NULL, &pNdisMacHdr, NULL);
|
|
pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
|
|
if (!SPX2_CONN(pSpxConnFile))
|
|
{
|
|
NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
|
|
}
|
|
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
hdrLen,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl =
|
|
(SPX_CC_ACK |
|
|
(SPX2_CONN(pSpxConnFile) ? SPX_CC_SPX2 : 0) |
|
|
((DataType == SPX2_DT_IDISC) ? 0 : SPX_CC_EOM));
|
|
|
|
pIpxSpxHdr->hdr_DataType = DataType;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId =
|
|
*((UNALIGNED USHORT *)&pSpxConnFile->scf_RemConnId);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
pSpxConnFile->scf_SendSeqNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RecvSeqNum);
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
|
|
if (SPX2_CONN(pSpxConnFile))
|
|
{
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
}
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pDiscPkt->ProtocolReserved);
|
|
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_Type =
|
|
((DataType == SPX2_DT_IDISC) ? SPX_TYPE_IDISC : SPX_TYPE_ORDREL);
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Request = pRequest;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Offset = 0;
|
|
pSendResd->sr_SeqNum = pSpxConnFile->scf_SendSeqNum;
|
|
pSendResd->sr_Len =
|
|
pSendResd->sr_HdrLen = hdrLen;
|
|
|
|
*ppPkt = pDiscPkt;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildProbe(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN BOOLEAN fSpx2
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_PACKET pProbe;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
USHORT hdrLen;
|
|
PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
|
|
*ppPkt = NULL;
|
|
|
|
SpxAllocSendPacket(SpxDevice, &pProbe, &ndisStatus);
|
|
if (ndisStatus == NDIS_STATUS_SUCCESS)
|
|
{
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pProbe, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pProbe +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
hdrLen = (fSpx2 ? MIN_IPXSPX2_HDRSIZE : MIN_IPXSPX_HDRSIZE);
|
|
|
|
NdisQueryPacket(pProbe, NULL, NULL, &pNdisMacHdr, NULL);
|
|
pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
|
|
if (!fSpx2)
|
|
{
|
|
NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
|
|
}
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
hdrLen,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl = (SPX_CC_SYS | SPX_CC_ACK |
|
|
(fSpx2 ? SPX_CC_SPX2 : 0));
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId =
|
|
*((UNALIGNED USHORT *)&pSpxConnFile->scf_RemConnId);
|
|
|
|
if (fSpx2)
|
|
{
|
|
pIpxSpxHdr->hdr_SeqNum = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
}
|
|
else
|
|
{
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
pSpxConnFile->scf_SendSeqNum);
|
|
}
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RecvSeqNum);
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pProbe->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = SPX_TYPE_PROBE;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Len =
|
|
pSendResd->sr_HdrLen = (fSpx2 ? MIN_IPXSPX2_HDRSIZE
|
|
: MIN_IPXSPX_HDRSIZE);
|
|
|
|
*ppPkt = pProbe;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktBuildData(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN USHORT Length
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Handles zero length sends.
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PNDIS_BUFFER pNdisBuffer;
|
|
PSPX_SEND_RESD pSendResd;
|
|
PNDIS_PACKET pDataPkt;
|
|
NDIS_STATUS ndisStatus;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
USHORT hdrLen;
|
|
PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
*ppPkt = NULL;
|
|
|
|
SpxAllocSendPacket(SpxDevice, &pDataPkt, &ndisStatus);
|
|
if (ndisStatus == NDIS_STATUS_SUCCESS)
|
|
{
|
|
// Make a ndis buffer descriptor for the data if present.
|
|
if (Length > 0)
|
|
{
|
|
SpxCopyBufferChain(
|
|
&ndisStatus,
|
|
&pNdisBuffer,
|
|
SpxDevice->dev_NdisBufferPoolHandle,
|
|
REQUEST_TDI_BUFFER(pSpxConnFile->scf_ReqPkt),
|
|
pSpxConnFile->scf_ReqPktOffset,
|
|
Length);
|
|
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
// Free the send packet
|
|
SpxPktSendRelease(pDataPkt);
|
|
return;
|
|
}
|
|
|
|
// Chain this in the packet
|
|
NdisChainBufferAtBack(pDataPkt, pNdisBuffer);
|
|
}
|
|
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pDataPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pDataPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
|
|
hdrLen = SPX2_CONN(pSpxConnFile) ? MIN_IPXSPX2_HDRSIZE : MIN_IPXSPX_HDRSIZE;
|
|
Length += hdrLen;
|
|
|
|
NdisQueryPacket(pDataPkt, NULL, NULL, &pNdisMacHdr, NULL);
|
|
pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
|
|
if (!SPX2_CONN(pSpxConnFile))
|
|
{
|
|
NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
|
|
}
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
Length,
|
|
pSpxConnFile->scf_RemAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
// Build SPX Header.
|
|
pIpxSpxHdr->hdr_ConnCtrl =
|
|
(((State & SPX_SENDPKT_ACKREQ) ? SPX_CC_ACK : 0) |
|
|
((State & SPX_SENDPKT_EOM) ? SPX_CC_EOM : 0) |
|
|
(SPX2_CONN(pSpxConnFile) ? SPX_CC_SPX2 : 0));
|
|
|
|
pIpxSpxHdr->hdr_DataType = pSpxConnFile->scf_DataType;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
pIpxSpxHdr->hdr_DestConnId =
|
|
*((UNALIGNED USHORT *)&pSpxConnFile->scf_RemConnId);
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
pSpxConnFile->scf_SendSeqNum);
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RecvSeqNum);
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
|
|
if (SPX2_CONN(pSpxConnFile))
|
|
{
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
}
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pDataPkt->ProtocolReserved);
|
|
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_Type = SPX_TYPE_DATA;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Request = pSpxConnFile->scf_ReqPkt;
|
|
pSendResd->sr_Offset = pSpxConnFile->scf_ReqPktOffset;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_SeqNum = pSpxConnFile->scf_SendSeqNum;
|
|
pSendResd->sr_Len = Length;
|
|
pSendResd->sr_HdrLen = hdrLen;
|
|
|
|
if (State & SPX_SENDPKT_ACKREQ)
|
|
{
|
|
KeQuerySystemTime((PLARGE_INTEGER)&pSendResd->sr_SentTime);
|
|
}
|
|
|
|
CTEAssert(pSendResd->sr_Len <= pSpxConnFile->scf_MaxPktSize);
|
|
*ppPkt = pDataPkt;
|
|
|
|
// Ok, allocation succeeded. Increment send seq.
|
|
pSpxConnFile->scf_SendSeqNum++;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
VOID
|
|
SpxCopyBufferChain(
|
|
OUT PNDIS_STATUS Status,
|
|
OUT PNDIS_BUFFER * TargetChain,
|
|
IN NDIS_HANDLE PoolHandle,
|
|
IN PNDIS_BUFFER SourceChain,
|
|
IN UINT Offset,
|
|
IN UINT Length
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Creates a TargetBufferChain from the SourceBufferChain. The copy begins at
|
|
the 'Offset' location in the source chain. It copies 'Length' bytes. It also
|
|
handles Length = 0. If we run out of source chain before copying length amount
|
|
of bytes or run out of memory to create any more buffers for the target chain,
|
|
we clean up the partial chain created so far.
|
|
|
|
Arguments:
|
|
|
|
Status - Status of the request.
|
|
TargetChain - Pointer to the allocated buffer descriptor.
|
|
PoolHandle - Handle that is used to specify the pool.
|
|
SourceChain - Pointer to the descriptor of the source memory.
|
|
Offset - The Offset in the sources memory from which the copy is to
|
|
begin
|
|
Length - Number of Bytes to copy.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
UINT BytesBeforeCurBuffer = 0;
|
|
PNDIS_BUFFER CurBuffer = SourceChain;
|
|
UINT BytesLeft;
|
|
UINT AvailableBytes;
|
|
PNDIS_BUFFER NewNdisBuffer, StartTargetChain;
|
|
|
|
CTEAssert( SourceChain );
|
|
|
|
// First of all find the source buffer that contains data that starts at
|
|
// Offset.
|
|
NdisQueryBuffer( CurBuffer, NULL, &AvailableBytes );
|
|
while ( BytesBeforeCurBuffer + AvailableBytes <= Offset ) {
|
|
BytesBeforeCurBuffer += AvailableBytes;
|
|
CurBuffer = CurBuffer->Next;
|
|
if ( CurBuffer ) {
|
|
NdisQueryBuffer( CurBuffer, NULL, &AvailableBytes );
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( ! CurBuffer ) {
|
|
*Status = STATUS_UNSUCCESSFUL;
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Copy the first buffer. This takes care of Length = 0.
|
|
//
|
|
BytesLeft = Length;
|
|
|
|
//
|
|
// ( Offset - BytesBeforeCurBuffer ) gives us the offset within this buffer.
|
|
//
|
|
|
|
AvailableBytes -= ( Offset - BytesBeforeCurBuffer );
|
|
|
|
if ( AvailableBytes > BytesLeft ) {
|
|
AvailableBytes = BytesLeft;
|
|
}
|
|
|
|
NdisCopyBuffer(
|
|
Status,
|
|
&NewNdisBuffer,
|
|
PoolHandle,
|
|
CurBuffer,
|
|
Offset - BytesBeforeCurBuffer,
|
|
AvailableBytes);
|
|
|
|
if ( *Status != NDIS_STATUS_SUCCESS ) {
|
|
return;
|
|
}
|
|
|
|
StartTargetChain = NewNdisBuffer;
|
|
BytesLeft -= AvailableBytes;
|
|
|
|
//
|
|
// Did the first buffer have enough data. If so, we r done.
|
|
//
|
|
if ( ! BytesLeft ) {
|
|
*TargetChain = StartTargetChain;
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Now follow the Mdl chain and copy more buffers.
|
|
//
|
|
CurBuffer = CurBuffer->Next;
|
|
NdisQueryBuffer( CurBuffer, NULL, &AvailableBytes );
|
|
while ( CurBuffer ) {
|
|
|
|
if ( AvailableBytes > BytesLeft ) {
|
|
AvailableBytes = BytesLeft;
|
|
}
|
|
|
|
NdisCopyBuffer(
|
|
Status,
|
|
&(NDIS_BUFFER_LINKAGE(NewNdisBuffer)),
|
|
PoolHandle,
|
|
CurBuffer,
|
|
0,
|
|
AvailableBytes);
|
|
|
|
if ( *Status != NDIS_STATUS_SUCCESS ) {
|
|
|
|
//
|
|
// ran out of resources. put back what we've used in this call and
|
|
// return the error.
|
|
//
|
|
|
|
while ( StartTargetChain != NULL) {
|
|
NewNdisBuffer = NDIS_BUFFER_LINKAGE( StartTargetChain );
|
|
NdisFreeBuffer ( StartTargetChain );
|
|
StartTargetChain = NewNdisBuffer;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
NewNdisBuffer = NDIS_BUFFER_LINKAGE(NewNdisBuffer);
|
|
BytesLeft -= AvailableBytes;
|
|
|
|
if ( ! BytesLeft ) {
|
|
*TargetChain = StartTargetChain;
|
|
return;
|
|
}
|
|
|
|
CurBuffer = CurBuffer->Next;
|
|
NdisQueryBuffer( CurBuffer, NULL, &AvailableBytes );
|
|
}
|
|
|
|
//
|
|
// Ran out of source chain. This should not happen.
|
|
//
|
|
|
|
CTEAssert( FALSE );
|
|
|
|
// For Retail build we clean up anyways.
|
|
|
|
while ( StartTargetChain != NULL) {
|
|
NewNdisBuffer = NDIS_BUFFER_LINKAGE( StartTargetChain );
|
|
NdisFreeBuffer ( StartTargetChain );
|
|
StartTargetChain = NewNdisBuffer;
|
|
}
|
|
|
|
*Status = STATUS_UNSUCCESSFUL;
|
|
return;
|
|
}
|
|
|
|
|
|
VOID
|
|
SpxPktBuildAck(
|
|
IN PSPX_CONN_FILE pSpxConnFile,
|
|
OUT PNDIS_PACKET * ppPkt,
|
|
IN USHORT State,
|
|
IN BOOLEAN fBuildNack,
|
|
IN USHORT NumToResend
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
|
|
--*/
|
|
{
|
|
PNDIS_PACKET pPkt;
|
|
PSPX_SEND_RESD pSendResd;
|
|
PIPXSPX_HDR pIpxSpxHdr;
|
|
NDIS_STATUS ndisStatus;
|
|
USHORT hdrLen;
|
|
PNDIS_BUFFER pNdisMacHdr, pNdisIpxHdr;
|
|
PNDIS_BUFFER NdisBuf, NdisBuf2;
|
|
ULONG BufLen = 0;
|
|
|
|
BOOLEAN fSpx2 = SPX_CONN_FLAG(pSpxConnFile, SPX_CONNFILE_SPX2);
|
|
|
|
*ppPkt = NULL;
|
|
|
|
SpxAllocSendPacket(SpxDevice, &pPkt, &ndisStatus);
|
|
if (ndisStatus != NDIS_STATUS_SUCCESS)
|
|
{
|
|
DBGPRINT(SEND, ERR,
|
|
("SpxPktBuildAck: Could not allocate ndis packet\n"));
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Get the MDL that points to the IPX/SPX header. (the second one)
|
|
//
|
|
|
|
NdisQueryPacket(pPkt, NULL, NULL, &NdisBuf, NULL);
|
|
NdisGetNextBuffer(NdisBuf, &NdisBuf2);
|
|
NdisQueryBuffer(NdisBuf2, (PUCHAR) &pIpxSpxHdr, &BufLen);
|
|
|
|
#if OWN_PKT_POOLS
|
|
pIpxSpxHdr = (PIPXSPX_HDR)((PBYTE)pPkt +
|
|
NDIS_PACKET_SIZE +
|
|
sizeof(SPX_SEND_RESD) +
|
|
IpxInclHdrOffset);
|
|
#endif
|
|
hdrLen = SPX2_CONN(pSpxConnFile) ? MIN_IPXSPX2_HDRSIZE : MIN_IPXSPX_HDRSIZE;
|
|
NdisQueryPacket(pPkt, NULL, NULL, &pNdisMacHdr, NULL);
|
|
pNdisIpxHdr = NDIS_BUFFER_LINKAGE(pNdisMacHdr);
|
|
if (!fSpx2)
|
|
{
|
|
NdisAdjustBufferLength(pNdisIpxHdr, MIN_IPXSPX_HDRSIZE);
|
|
}
|
|
|
|
// Send where data came from
|
|
SpxBuildIpxHdr(
|
|
pIpxSpxHdr,
|
|
hdrLen,
|
|
pSpxConnFile->scf_RemAckAddr,
|
|
pSpxConnFile->scf_AddrFile->saf_Addr->sa_Socket);
|
|
|
|
pIpxSpxHdr->hdr_ConnCtrl = (SPX_CC_SYS | (fSpx2 ? SPX_CC_SPX2 : 0));
|
|
|
|
pIpxSpxHdr->hdr_DataType = 0;
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SrcConnId,
|
|
pSpxConnFile->scf_LocalConnId);
|
|
|
|
pIpxSpxHdr->hdr_DestConnId = pSpxConnFile->scf_RemConnId;
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AckNum,
|
|
pSpxConnFile->scf_RecvSeqNum);
|
|
|
|
if (fSpx2)
|
|
{
|
|
pIpxSpxHdr->hdr_SeqNum = 0;
|
|
if (fBuildNack)
|
|
{
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
NumToResend);
|
|
}
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_NegSize,
|
|
pSpxConnFile->scf_MaxPktSize);
|
|
}
|
|
else
|
|
{
|
|
// Put current send seq number in packet for spx1
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_SeqNum,
|
|
pSpxConnFile->scf_SendSeqNum);
|
|
}
|
|
|
|
PUTSHORT2SHORT(
|
|
&pIpxSpxHdr->hdr_AllocNum,
|
|
pSpxConnFile->scf_SentAllocNum);
|
|
|
|
pSendResd = (PSPX_SEND_RESD)(pPkt->ProtocolReserved);
|
|
pSendResd->sr_Id = IDENTIFIER_SPX;
|
|
pSendResd->sr_Type = (fBuildNack ? SPX_TYPE_DATANACK : SPX_TYPE_DATAACK);
|
|
pSendResd->sr_Reserved1 = NULL;
|
|
pSendResd->sr_Reserved2 = NULL;
|
|
pSendResd->sr_State = State;
|
|
pSendResd->sr_ConnFile = pSpxConnFile;
|
|
pSendResd->sr_Request = NULL;
|
|
pSendResd->sr_Next = NULL;
|
|
pSendResd->sr_Len = pSendResd->sr_HdrLen = hdrLen;
|
|
|
|
*ppPkt = pPkt;
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktRecvRelease(
|
|
IN PNDIS_PACKET pPkt
|
|
)
|
|
{
|
|
((PSPX_RECV_RESD)(pPkt->ProtocolReserved))->rr_State = SPX_RECVPKT_IDLE;
|
|
SpxFreeRecvPacket(SpxDevice, pPkt);
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
SpxPktSendRelease(
|
|
IN PNDIS_PACKET pPkt
|
|
)
|
|
{
|
|
PNDIS_BUFFER pBuf, pIpxSpxBuf, pFreeBuf;
|
|
UINT bufCount;
|
|
|
|
CTEAssert((((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_State &
|
|
SPX_SENDPKT_IPXOWNS) == 0);
|
|
|
|
NdisQueryPacket(pPkt, NULL, &bufCount, &pBuf, NULL);
|
|
|
|
// BufCount == 1 for only the header. That's ok, we just reset the length
|
|
// and free the packet to the buffer pools. Else we need to free user buffers
|
|
// before that.
|
|
|
|
NdisUnchainBufferAtFront(
|
|
pPkt,
|
|
&pBuf);
|
|
|
|
NdisUnchainBufferAtFront(
|
|
pPkt,
|
|
&pIpxSpxBuf);
|
|
|
|
//
|
|
// Set the header length to the max. that can be needed.
|
|
//
|
|
NdisAdjustBufferLength(pIpxSpxBuf, MIN_IPXSPX2_HDRSIZE);
|
|
|
|
while (bufCount-- > 2)
|
|
{
|
|
PBYTE pData;
|
|
ULONG dataLen;
|
|
|
|
NdisUnchainBufferAtBack(
|
|
pPkt,
|
|
&pFreeBuf);
|
|
|
|
// See if we free data associated with the buffer
|
|
if ((((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_State &
|
|
SPX_SENDPKT_FREEDATA) != 0)
|
|
{
|
|
NdisQueryBuffer(pFreeBuf, &pData, &dataLen);
|
|
CTEAssert(pData != NULL);
|
|
SpxFreeMemory(pData);
|
|
}
|
|
|
|
CTEAssert(pFreeBuf != NULL);
|
|
NdisFreeBuffer(pFreeBuf);
|
|
}
|
|
|
|
NdisReinitializePacket(pPkt);
|
|
|
|
// Initialize elements of the protocol reserved structure.
|
|
((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_Id = IDENTIFIER_SPX;
|
|
((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_State = SPX_SENDPKT_IDLE;
|
|
((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_Reserved1= NULL;
|
|
((PSPX_SEND_RESD)(pPkt->ProtocolReserved))->sr_Reserved2= NULL;
|
|
|
|
NdisChainBufferAtFront(
|
|
pPkt,
|
|
pBuf);
|
|
|
|
NdisChainBufferAtBack(
|
|
pPkt,
|
|
pIpxSpxBuf);
|
|
|
|
SpxFreeSendPacket(SpxDevice, pPkt);
|
|
return;
|
|
}
|