Leaked source code of windows server 2003
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//+-----------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (c) Microsoft Corporation 1992 - 1996
//
// File: spncache.h
//
// Contents: Prototypes and types for SPN cache
//
//
// History: 29-August-2000 Created MikeSw
//
//------------------------------------------------------------------------
#ifndef __SPNCACHE_H__
#define __SPNCACHE_H__
extern BOOLEAN KerberosSpnCacheInitialized;
extern KERBEROS_LIST KerbSpnCache;
typedef struct _HOST_TO_REALM_KEY {
UNICODE_STRING SpnSuffix; // MUST be the first field
UNICODE_STRING TargetRealm;
#pragma warning(disable:4200)
WCHAR NameBuffer[];
#pragma warning(default:4200)
} HOST_TO_REALM_KEY, *PHOST_TO_REALM_KEY;
//
// The below value tells us when to start scavenging
// our cache
//
#define MAX_CACHE_ENTRIES 350
typedef struct _SPN_CACHE_RESULT {
UNICODE_STRING AccountRealm;
UNICODE_STRING TargetRealm;
ULONG CacheFlags;
TimeStamp CacheStartTime;
} SPN_CACHE_RESULT, *PSPN_CACHE_RESULT;
#define MAX_RESULTS 16
typedef struct _KERB_SPN_CACHE_ENTRY {
KERBEROS_LIST_ENTRY ListEntry;
PKERB_INTERNAL_NAME Spn;
RTL_RESOURCE ResultLock;
ULONG ResultCount;
SPN_CACHE_RESULT Results[MAX_RESULTS];
} KERB_SPN_CACHE_ENTRY, *PKERB_SPN_CACHE_ENTRY;
//
// Valid CacheFlags
//
#define KERB_SPN_UNKNOWN 0x1
#define KERB_SPN_KNOWN 0x2
#define KERB_SPNCACHE_KEY L"System\\CurrentControlSet\\Control\\Lsa\\Kerberos\\SpnCache"
#define KERB_REALM_STRING L"Realm"
#define KERB_HOST_TO_REALM_KEY L"System\\CurrentControlSet\\Control\\Lsa\\Kerberos\\HostToRealm"
#define KERB_HOST_TO_REALM_VAL L"SpnMappings"
VOID
KerbCreateHostToRealmMappings();
VOID
KerbRefreshHostToRealmTable();
NTSTATUS
KerbGetSpnCacheStatus(
IN PKERB_SPN_CACHE_ENTRY CacheEntry,
IN PKERB_PRIMARY_CREDENTIAL Credential,
IN OUT PUNICODE_STRING SpnRealm
);
NTSTATUS
KerbSpnSubstringMatch(
IN PKERB_INTERNAL_NAME Spn,
IN OUT PUNICODE_STRING TargetRealm
);
VOID
KerbCleanupSpnCache(
VOID
);
VOID
KerbFreeSpnCacheEntry(
IN PKERB_SPN_CACHE_ENTRY SpnCacheEntry
);
NTSTATUS
KerbInitSpnCache(
VOID
);
NTSTATUS
KerbInsertSpnCacheEntry(
IN PKERB_SPN_CACHE_ENTRY CacheEntry
);
VOID
KerbDereferenceSpnCacheEntry(
IN PKERB_SPN_CACHE_ENTRY SpnCacheEntry
);
PKERB_SPN_CACHE_ENTRY
KerbLocateSpnCacheEntry(
IN PKERB_INTERNAL_NAME Spn
);
NTSTATUS
KerbUpdateSpnCacheEntry(
IN OPTIONAL PKERB_SPN_CACHE_ENTRY ExistingCacheEntry,
IN PKERB_INTERNAL_NAME Spn,
IN PKERB_PRIMARY_CREDENTIAL AccountCredential,
IN ULONG UpdateFlags,
IN OPTIONAL PUNICODE_STRING NewRealm
);
#endif // __TKTCACHE_H__