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210 lines
3.6 KiB
210 lines
3.6 KiB
/*++
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Copyright (c) 1998, Microsoft Corporation
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Module Name:
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dnslookup.h
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Abstract:
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This module contains declarations related to the DNS server's
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lookup table.
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Author:
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Tom Brown (tbrown) 25-Oct-1999
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Revision History:
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Raghu Gatta (rgatta) 21-Oct-2000
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Time macros + New Functions
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--*/
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#ifndef _NATHLP_DNSLOOKUP_H_
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#define _NATHLP_DNSLOOKUP_H_
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#define LOCAL_DOMAIN L"local"
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#define LOCAL_DOMAIN_ANSI "local"
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//
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// move to somewhere else if necessary
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//
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//
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// Time conversion constants and macros
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//
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#define SYSTIME_UNITS_IN_1_MSEC (1000 * 10)
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#define SYSTIME_UNITS_IN_1_SEC (1000 * SYSTIME_UNITS_IN_1_MSEC)
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//
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// macro to get system time in 100-nanosecond units
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//
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#define DnsQuerySystemTime(p) NtQuerySystemTime((p))
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//
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// macros to convert time between 100-nanosecond, 1millsec, and 1 sec units
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//
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#define DnsSystemTimeToMillisecs(p) { \
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DWORD _r; \
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*(p) = RtlExtendedLargeIntegerDivide(*(p), SYSTIME_UNITS_IN_1_MSEC, &_r);\
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}
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#define DnsMillisecsToSystemTime(p) \
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*(p) = RtlExtendedIntegerMultiply(*(p), SYSTIME_UNITS_IN_1_MSEC)
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#define DnsSecsToSystemTime(p) \
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*(p) = RtlExtendedIntegerMultiply(*(p), SYSTIME_UNITS_IN_1_SEC)
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#define CACHE_ENTRY_EXPIRY (7 * 24 * 60 * 60) // (matches DHCP lease time)
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typedef ULONG DNS_ADDRESS;
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typedef struct
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{
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DNS_ADDRESS ulAddress;
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FILETIME ftExpires;
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//ULONG ulExpires;
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} ADDRESS_INFO, *PADDRESS_INFO;
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typedef struct
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{
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WCHAR *pszName;
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UINT cAddresses;
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DWORD cAddressesAllocated;
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PADDRESS_INFO aAddressInfo;
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} DNS_ENTRY, *PDNS_ENTRY;
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typedef struct
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{
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DNS_ADDRESS ulAddress;
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WCHAR *pszName; // do not free this! It is the same pointer as used in the
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// forward lookup table.
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} REVERSE_DNS_ENTRY, *PREVERSE_DNS_ENTRY;
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extern CRITICAL_SECTION DnsTableLock; // protects both tables
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extern RTL_GENERIC_TABLE g_DnsTable,
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g_ReverseDnsTable;
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ULONG
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DnsInitializeTableManagement(
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VOID
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);
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VOID
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DnsShutdownTableManagement(
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VOID
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);
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VOID
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DnsEmptyTables(
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VOID
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);
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BOOL
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DnsRegisterName(
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WCHAR *pszName,
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UINT cAddresses,
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ADDRESS_INFO aAddressInfo[]
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);
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VOID
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DnsAddAddressForName(
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WCHAR *pszName,
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DNS_ADDRESS ulAddress,
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FILETIME ftExpires
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//ULONG ulExpires
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);
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VOID
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DnsDeleteAddressForName(
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WCHAR *pszName,
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DNS_ADDRESS ulAddress
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);
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PDNS_ENTRY
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DnsLookupAddress(
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WCHAR *pszName
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);
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PREVERSE_DNS_ENTRY
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DnsLookupName(
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DNS_ADDRESS ulAddress
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);
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VOID
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DnsDeleteName(
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WCHAR *pszName
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);
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VOID
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DnsUpdateName(
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WCHAR *pszName,
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DNS_ADDRESS ulAddress
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);
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VOID
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DnsUpdate(
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CHAR *pszName,
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ULONG len,
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ULONG ulAddress
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);
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VOID
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DnsAddSelf(
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VOID
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);
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VOID
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DnsCleanupTables(
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VOID
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);
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DWORD
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DnsConvertHostNametoUnicode(
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UINT CodePage,
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CHAR *pszHostName,
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PWCHAR DnsICSDomainSuffix,
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PWCHAR *ppszUnicodeFQDN
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);
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BOOL
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ConvertToUtf8(
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IN UINT CodePage,
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IN LPSTR pszName,
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OUT PCHAR *ppszUtf8Name,
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OUT ULONG *pUtf8NameSize
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);
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BOOL
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ConvertUTF8ToUnicode(
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IN LPBYTE UTF8String,
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OUT LPWSTR *ppszUnicodeName,
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OUT DWORD *pUnicodeNameSize
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);
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#endif
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