149 lines
2.3 KiB
C
149 lines
2.3 KiB
C
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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adpdbase.c
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Abstract:
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Functions to manipulate the adapters data base
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Author:
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Stefan Solomon 04/10/1995
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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 adpthashindex(AdptIndex) (AdptIndex) % ADAPTER_HASH_TABLE_SIZE
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// THIS FUNCTIONS ASSUME THE ROUTER MANAGER IS IN CRITICAL SECTION WHEN CALLED
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//***
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//
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// Function: InitAdptDB
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//
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// Descr:
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//
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//***
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VOID
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InitAdptDB(VOID)
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{
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int i;
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PLIST_ENTRY IfHtBucketp;
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IfHtBucketp = IndexAdptHt;
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for(i=0; i<ADAPTER_HASH_TABLE_SIZE; i++, IfHtBucketp++) {
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InitializeListHead(IfHtBucketp);
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}
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}
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/*++
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Function: AddToAdapterHt
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Descr: Adds the adapter control block to the hash table of adapters
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--*/
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VOID
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AddToAdapterHt(PACB acbp)
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{
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int hv;
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PLIST_ENTRY lep;
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PACB list_acbp;
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// insert in index hash table
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hv = adpthashindex(acbp->AdapterIndex);
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InsertTailList(&IndexAdptHt[hv], &acbp->IndexHtLinkage);
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}
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VOID
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RemoveFromAdapterHt(PACB acbp)
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{
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RemoveEntryList(&acbp->IndexHtLinkage);
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}
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/*++
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Function: GetAdapterByIndex
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Descr:
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--*/
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PACB
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GetAdapterByIndex(ULONG AdptIndex)
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{
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PACB acbp;
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PLIST_ENTRY lep;
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int hv;
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hv = adpthashindex(AdptIndex);
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lep = IndexAdptHt[hv].Flink;
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while(lep != &IndexAdptHt[hv])
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{
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acbp = CONTAINING_RECORD(lep, ACB, IndexHtLinkage);
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if (acbp->AdapterIndex == AdptIndex) {
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return acbp;
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}
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lep = acbp->IndexHtLinkage.Flink;
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}
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return NULL;
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}
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/*++
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Function: GetAdapterByName
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Descr: Scans the list of adapters looking for the matching name
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--*/
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PACB
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GetAdapterByNameAndPktType (LPWSTR AdapterName, ULONG PacketType)
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{
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PACB acbp;
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PLIST_ENTRY lep;
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int i;
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// the list of adapters is kept in the adapters hash table.
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for(i=0; i<ADAPTER_HASH_TABLE_SIZE;i++) {
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lep = IndexAdptHt[i].Flink;
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while(lep != &IndexAdptHt[i])
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{
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acbp = CONTAINING_RECORD(lep, ACB, IndexHtLinkage);
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if(!_wcsicmp(AdapterName, acbp->AdapterNamep)) {
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if ((PacketType == AUTO_DETECT_PACKET_TYPE)
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|| (PacketType == acbp->AdapterInfo.PacketType))
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// found !
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return acbp;
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}
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lep = acbp->IndexHtLinkage.Flink;
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}
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}
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return NULL;
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}
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