768 lines
20 KiB
C
768 lines
20 KiB
C
//+-----------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (c) Microsoft Corporation 1999
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//
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// File: perfmon.c
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//
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// Contents: Schannel performance counter functions.
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//
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// Functions:
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//
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// History: 04-11-2000 jbanes Created
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//
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//------------------------------------------------------------------------
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#include "sslp.h"
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#include "perfmon.h"
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DWORD dwOpenCount = 0; // count of "Open" threads
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BOOL bInitOK = FALSE; // true = DLL initialized OK
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HANDLE LsaHandle;
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DWORD PackageNumber;
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PM_OPEN_PROC OpenSslPerformanceData;
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PM_COLLECT_PROC CollectSslPerformanceData;
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PM_CLOSE_PROC CloseSslPerformanceData;
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#define DWORD_MULTIPLE(x) (((x+sizeof(DWORD)-1)/sizeof(DWORD))*sizeof(DWORD))
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SSLPERF_DATA_DEFINITION SslPerfDataDefinition =
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{
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// PERF_OBJECT_TYPE
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{
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sizeof(SSLPERF_DATA_DEFINITION) + sizeof(SSLPERF_COUNTER),
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sizeof(SSLPERF_DATA_DEFINITION),
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sizeof(PERF_OBJECT_TYPE),
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SSLPERF_OBJ,
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0,
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SSLPERF_OBJ,
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0,
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PERF_DETAIL_NOVICE,
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(sizeof(SSLPERF_DATA_DEFINITION) - sizeof(PERF_OBJECT_TYPE)) /
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sizeof(PERF_COUNTER_DEFINITION),
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0
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PERF_NO_INSTANCES,
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0
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},
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// PERF_COUNTER_DEFINITION
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{
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sizeof(PERF_COUNTER_DEFINITION),
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SSL_CACHE_ENTRIES,
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0,
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SSL_CACHE_ENTRIES,
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0,
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0,
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PERF_DETAIL_NOVICE,
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PERF_COUNTER_RAWCOUNT,
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sizeof(DWORD),
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FIELD_OFFSET(SSLPERF_COUNTER, dwCacheEntries)
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},
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// PERF_COUNTER_DEFINITION
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{
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sizeof(PERF_COUNTER_DEFINITION),
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SSL_ACTIVE_ENTRIES,
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0,
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SSL_ACTIVE_ENTRIES,
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0,
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0,
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PERF_DETAIL_NOVICE,
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PERF_COUNTER_RAWCOUNT,
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sizeof(DWORD),
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FIELD_OFFSET(SSLPERF_COUNTER, dwActiveEntries)
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},
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// PERF_COUNTER_DEFINITION
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{
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sizeof(PERF_COUNTER_DEFINITION),
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SSL_HANDSHAKE_COUNT,
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0,
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SSL_HANDSHAKE_COUNT,
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0,
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0,
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PERF_DETAIL_NOVICE,
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PERF_COUNTER_COUNTER,
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sizeof(DWORD),
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FIELD_OFFSET(SSLPERF_COUNTER, dwHandshakeCount)
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},
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// PERF_COUNTER_DEFINITION
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{
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sizeof(PERF_COUNTER_DEFINITION),
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SSL_RECONNECT_COUNT,
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0,
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SSL_RECONNECT_COUNT,
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0,
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0,
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PERF_DETAIL_NOVICE,
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PERF_COUNTER_COUNTER,
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sizeof(DWORD),
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FIELD_OFFSET(SSLPERF_COUNTER, dwReconnectCount)
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}
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};
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typedef struct _INSTANCE_DATA
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{
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DWORD dwProtocol;
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LPWSTR szInstanceName;
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} INSTANCE_DATA, *PINSTANCE_DATA;
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static INSTANCE_DATA wdInstance[] =
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{
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{SP_PROT_CLIENTS, L"Client"},
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{SP_PROT_SERVERS, L"Server"},
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{0, L"_Total"}
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};
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static const DWORD NUM_INSTANCES =
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(sizeof(wdInstance)/sizeof(wdInstance[0]));
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/*++
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Routine Description:
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This routine will initialize the data structures used to pass
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data back to the registry
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Arguments:
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Pointer to object ID of each device to be opened (PerfGen)
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Return Value:
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None.
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--*/
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DWORD APIENTRY
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OpenSslPerformanceData(
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LPWSTR lpDeviceNames)
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{
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LONG Status;
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HKEY hKey = 0;
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DWORD size;
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DWORD type;
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DWORD dwFirstCounter;
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DWORD dwFirstHelp;
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LSA_STRING PackageName;
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//
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// Since WINLOGON is multi-threaded and will call this routine in
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// order to service remote performance queries, this library
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// must keep track of how many times it has been opened (i.e.
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// how many threads have accessed it). the registry routines will
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// limit access to the initialization routine to only one thread
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// at a time so synchronization (i.e. reentrancy) should not be
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// a problem
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//
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if (!dwOpenCount)
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{
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// get counter and help index base values from registry
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// Open key to registry entry
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// read First Counter and First Help values
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// update static data strucutures by adding base to
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// offset value in structure.
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Status = RegOpenKeyExA(
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HKEY_LOCAL_MACHINE,
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"SYSTEM\\CurrentControlSet\\Services\\Schannel\\Performance",
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0L,
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KEY_READ,
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&hKey);
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if(Status != ERROR_SUCCESS)
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{
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// this is fatal, if we can't get the base values of the
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// counter or help names, then the names won't be available
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// to the requesting application so there's not much
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// point in continuing.
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goto cleanup;
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}
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size = sizeof (DWORD);
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Status = RegQueryValueExA(
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hKey,
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"First Counter",
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0L,
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&type,
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(LPBYTE)&dwFirstCounter,
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&size);
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if(Status != ERROR_SUCCESS)
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{
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// this is fatal, if we can't get the base values of the
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// counter or help names, then the names won't be available
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// to the requesting application so there's not much
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// point in continuing.
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goto cleanup;
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}
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size = sizeof (DWORD);
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Status = RegQueryValueExA(
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hKey,
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"First Help",
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0L,
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&type,
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(LPBYTE)&dwFirstHelp,
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&size);
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if(Status != ERROR_SUCCESS)
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{
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// this is fatal, if we can't get the base values of the
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// counter or help names, then the names won't be available
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// to the requesting application so there's not much
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// point in continuing.
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goto cleanup;
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}
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//
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// NOTE: the initialization program could also retrieve
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// LastCounter and LastHelp if they wanted to do
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// bounds checking on the new number. e.g.
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//
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// counter->CounterNameTitleIndex += dwFirstCounter;
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// if (counter->CounterNameTitleIndex > dwLastCounter) {
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// LogErrorToEventLog (INDEX_OUT_OF_BOUNDS);
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// }
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//
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// Establish connection to schannel.
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//
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Status = LsaConnectUntrusted(&LsaHandle);
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if(!NT_SUCCESS(Status))
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{
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goto cleanup;
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}
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PackageName.Buffer = UNISP_NAME_A;
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PackageName.Length = (USHORT)strlen(PackageName.Buffer);
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PackageName.MaximumLength = PackageName.Length + 1;
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Status = LsaLookupAuthenticationPackage(
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LsaHandle,
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&PackageName,
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&PackageNumber);
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if(FAILED(Status))
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{
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CloseHandle(LsaHandle);
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goto cleanup;
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}
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//
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// Initialize the performance counters.
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//
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SslPerfDataDefinition.SslPerfObjectType.ObjectNameTitleIndex += dwFirstCounter;
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SslPerfDataDefinition.SslPerfObjectType.ObjectHelpTitleIndex += dwFirstHelp;
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// assign index of default counter (Sine Wave)
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SslPerfDataDefinition.SslPerfObjectType.DefaultCounter = 0;
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SslPerfDataDefinition.CacheEntriesDef.CounterNameTitleIndex += dwFirstCounter;
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SslPerfDataDefinition.CacheEntriesDef.CounterHelpTitleIndex += dwFirstHelp;
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SslPerfDataDefinition.ActiveEntriesDef.CounterNameTitleIndex += dwFirstCounter;
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SslPerfDataDefinition.ActiveEntriesDef.CounterHelpTitleIndex += dwFirstHelp;
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SslPerfDataDefinition.HandshakeCountDef.CounterNameTitleIndex += dwFirstCounter;
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SslPerfDataDefinition.HandshakeCountDef.CounterHelpTitleIndex += dwFirstHelp;
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SslPerfDataDefinition.ReconnectCountDef.CounterNameTitleIndex += dwFirstCounter;
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SslPerfDataDefinition.ReconnectCountDef.CounterHelpTitleIndex += dwFirstHelp;
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bInitOK = TRUE;
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}
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dwOpenCount++;
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Status = ERROR_SUCCESS;
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cleanup:
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if(hKey)
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{
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RegCloseKey(hKey);
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}
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return Status;
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}
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DWORD
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GetCacheInfo(
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PSSL_PERFMON_INFO_RESPONSE pPerfmonInfo)
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{
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PSSL_PERFMON_INFO_REQUEST pRequest = NULL;
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PSSL_PERFMON_INFO_RESPONSE pResponse = NULL;
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DWORD cbResponse = 0;
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DWORD SubStatus;
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DWORD Status;
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pRequest = (PSSL_PERFMON_INFO_REQUEST)LocalAlloc(LPTR, sizeof(SSL_PERFMON_INFO_REQUEST));
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if(pRequest == NULL)
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{
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Status = STATUS_INSUFFICIENT_RESOURCES;
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goto cleanup;
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}
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pRequest->MessageType = SSL_PERFMON_INFO_MESSAGE;
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Status = LsaCallAuthenticationPackage(
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LsaHandle,
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PackageNumber,
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pRequest,
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sizeof(SSL_PERFMON_INFO_REQUEST),
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&pResponse,
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&cbResponse,
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&SubStatus);
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if(FAILED(Status))
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{
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goto cleanup;
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}
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*pPerfmonInfo = *pResponse;
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Status = STATUS_SUCCESS;
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cleanup:
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if(pRequest)
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{
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LocalFree(pRequest);
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}
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if (pResponse != NULL)
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{
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LsaFreeReturnBuffer(pResponse);
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}
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return Status;
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}
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/*++
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Routine Description:
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This routine will return the data for the ssl performance counters.
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Arguments:
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IN LPWSTR lpValueName
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pointer to a wide character string passed by registry.
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IN OUT LPVOID *lppData
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IN: pointer to the address of the buffer to receive the completed
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PerfDataBlock and subordinate structures. This routine will
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append its data to the buffer starting at the point referenced
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by *lppData.
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OUT: points to the first byte after the data structure added by this
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routine. This routine updated the value at lppdata after appending
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its data.
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IN OUT LPDWORD lpcbTotalBytes
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IN: the address of the DWORD that tells the size in bytes of the
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buffer referenced by the lppData argument
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OUT: the number of bytes added by this routine is writted to the
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DWORD pointed to by this argument
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IN OUT LPDWORD NumObjectTypes
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IN: the address of the DWORD to receive the number of objects added
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by this routine
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OUT: the number of objects added by this routine is writted to the
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DWORD pointed to by this argument
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Return Value:
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ERROR_MORE_DATA if buffer passed is too small to hold data.
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ERROR_SUCCESS if success or any other error.
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--*/
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DWORD APIENTRY
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CollectSslPerformanceData(
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IN LPWSTR lpValueName,
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IN OUT LPVOID *lppData,
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IN OUT LPDWORD lpcbTotalBytes,
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IN OUT LPDWORD lpNumObjectTypes)
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{
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PERF_INSTANCE_DEFINITION *pPerfInstanceDefinition;
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SSLPERF_DATA_DEFINITION *pSslPerfDataDefinition;
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PSSLPERF_COUNTER pSC;
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SSL_PERFMON_INFO_RESPONSE PerfmonInfo;
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DWORD dwThisInstance;
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ULONG SpaceNeeded;
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DWORD dwQueryType;
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DWORD Status;
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//
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// before doing anything else, see if Open went OK
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//
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if (!bInitOK)
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{
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// unable to continue because open failed.
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*lpcbTotalBytes = (DWORD) 0;
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*lpNumObjectTypes = (DWORD) 0;
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return ERROR_SUCCESS; // yes, this is a successful exit
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}
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//
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// see if this is a foreign (i.e. non-NT) computer data request
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//
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dwQueryType = GetQueryType (lpValueName);
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if (dwQueryType == QUERY_FOREIGN)
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{
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// this routine does not service requests for data from
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// Non-NT computers
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*lpcbTotalBytes = (DWORD) 0;
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*lpNumObjectTypes = (DWORD) 0;
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return ERROR_SUCCESS;
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}
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if (dwQueryType == QUERY_ITEMS)
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{
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if(!(IsNumberInUnicodeList(SslPerfDataDefinition.SslPerfObjectType.ObjectNameTitleIndex, lpValueName)))
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{
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// request received for data object not provided by this routine
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*lpcbTotalBytes = (DWORD) 0;
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*lpNumObjectTypes = (DWORD) 0;
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return ERROR_SUCCESS;
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}
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}
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pSslPerfDataDefinition = (SSLPERF_DATA_DEFINITION *) *lppData;
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SpaceNeeded = sizeof(SSLPERF_DATA_DEFINITION) +
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(NUM_INSTANCES * (sizeof(PERF_INSTANCE_DEFINITION) +
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(24) + // size of instance names
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sizeof (SSLPERF_COUNTER)));
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if ( *lpcbTotalBytes < SpaceNeeded )
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{
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*lpcbTotalBytes = (DWORD) 0;
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*lpNumObjectTypes = (DWORD) 0;
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return ERROR_MORE_DATA;
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}
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//
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// Copy the (constant, initialized) Object Type and counter definitions
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// to the caller's data buffer
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//
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memmove(pSslPerfDataDefinition,
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&SslPerfDataDefinition,
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sizeof(SSLPERF_DATA_DEFINITION));
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//
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// Get info from schannel.
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//
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Status = GetCacheInfo(&PerfmonInfo);
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if(!NT_SUCCESS(Status))
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{
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*lpcbTotalBytes = (DWORD) 0;
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*lpNumObjectTypes = (DWORD) 0;
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return ERROR_SUCCESS;
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}
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//
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// Create data for return for each instance
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//
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pPerfInstanceDefinition = (PERF_INSTANCE_DEFINITION *)
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&pSslPerfDataDefinition[1];
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for(dwThisInstance = 0; dwThisInstance < NUM_INSTANCES; dwThisInstance++)
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{
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MonBuildInstanceDefinition(
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pPerfInstanceDefinition,
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(PVOID *)&pSC,
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0,
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0,
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(DWORD)-1, // use name
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wdInstance[dwThisInstance].szInstanceName);
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pSC->CounterBlock.ByteLength = sizeof (SSLPERF_COUNTER);
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if(wdInstance[dwThisInstance].dwProtocol & SP_PROT_CLIENTS)
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{
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// client
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pSC->dwCacheEntries = PerfmonInfo.ClientCacheEntries;
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pSC->dwActiveEntries = PerfmonInfo.ClientActiveEntries;
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pSC->dwHandshakeCount = PerfmonInfo.ClientHandshakesPerSecond;
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pSC->dwReconnectCount = PerfmonInfo.ClientReconnectsPerSecond;
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}
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else if(wdInstance[dwThisInstance].dwProtocol & SP_PROT_SERVERS)
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{
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// server
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pSC->dwCacheEntries = PerfmonInfo.ServerCacheEntries;
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pSC->dwActiveEntries = PerfmonInfo.ServerActiveEntries;
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pSC->dwHandshakeCount = PerfmonInfo.ServerHandshakesPerSecond;
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pSC->dwReconnectCount = PerfmonInfo.ServerReconnectsPerSecond;
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}
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else
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{
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// total
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pSC->dwCacheEntries = PerfmonInfo.ClientCacheEntries +
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PerfmonInfo.ServerCacheEntries;
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pSC->dwActiveEntries = PerfmonInfo.ClientActiveEntries +
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PerfmonInfo.ServerActiveEntries;
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pSC->dwHandshakeCount = PerfmonInfo.ClientHandshakesPerSecond +
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PerfmonInfo.ServerHandshakesPerSecond;
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pSC->dwReconnectCount = PerfmonInfo.ClientReconnectsPerSecond +
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PerfmonInfo.ServerReconnectsPerSecond;
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}
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// update instance pointer for next instance
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pPerfInstanceDefinition = (PERF_INSTANCE_DEFINITION *)&pSC[1];
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}
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//
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// update arguments for return
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//
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*lppData = (PVOID)pPerfInstanceDefinition;
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*lpNumObjectTypes = 1;
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pSslPerfDataDefinition->SslPerfObjectType.TotalByteLength =
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*lpcbTotalBytes = (DWORD)((LONG_PTR)pPerfInstanceDefinition -
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(LONG_PTR)pSslPerfDataDefinition);
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// update instance count
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pSslPerfDataDefinition->SslPerfObjectType.NumInstances = NUM_INSTANCES;
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return ERROR_SUCCESS;
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}
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/*++
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Routine Description:
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This routine closes the open handles to the Signal Gen counters.
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Arguments:
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None.
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Return Value:
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ERROR_SUCCESS
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--*/
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DWORD APIENTRY
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CloseSslPerformanceData(void)
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{
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if(--dwOpenCount == 0)
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{
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// when this is the last thread...
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if(LsaHandle)
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{
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CloseHandle(LsaHandle);
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}
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}
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return ERROR_SUCCESS;
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}
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/*++
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GetQueryType
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returns the type of query described in the lpValue string so that
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the appropriate processing method may be used
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Arguments
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IN lpValue
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string passed to PerfRegQuery Value for processing
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Return Value
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QUERY_GLOBAL
|
|
if lpValue == 0 (null pointer)
|
|
lpValue == pointer to Null string
|
|
lpValue == pointer to "Global" string
|
|
|
|
QUERY_FOREIGN
|
|
if lpValue == pointer to "Foreign" string
|
|
|
|
QUERY_COSTLY
|
|
if lpValue == pointer to "Costly" string
|
|
|
|
otherwise:
|
|
|
|
QUERY_ITEMS
|
|
|
|
--*/
|
|
DWORD
|
|
GetQueryType (
|
|
IN LPWSTR lpValue)
|
|
{
|
|
if(lpValue == NULL || *lpValue == 0)
|
|
{
|
|
return QUERY_GLOBAL;
|
|
}
|
|
|
|
if(lstrcmp(lpValue, L"Global") == 0)
|
|
{
|
|
return QUERY_GLOBAL;
|
|
}
|
|
|
|
if(lstrcmp(lpValue, L"Foreign") == 0)
|
|
{
|
|
return QUERY_FOREIGN;
|
|
}
|
|
|
|
if(lstrcmp(lpValue, L"Costly") == 0)
|
|
{
|
|
return QUERY_COSTLY;
|
|
}
|
|
|
|
// if not Global and not Foreign and not Costly,
|
|
// then it must be an item list
|
|
return QUERY_ITEMS;
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
MonBuildInstanceDefinition - Build an instance of an object
|
|
|
|
Inputs:
|
|
|
|
pBuffer - pointer to buffer where instance is to
|
|
be constructed
|
|
|
|
pBufferNext - pointer to a pointer which will contain
|
|
next available location, DWORD aligned
|
|
|
|
ParentObjectTitleIndex
|
|
- Title Index of parent object type; 0 if
|
|
no parent object
|
|
|
|
ParentObjectInstance
|
|
- Index into instances of parent object
|
|
type, starting at 0, for this instances
|
|
parent object instance
|
|
|
|
UniqueID - a unique identifier which should be used
|
|
instead of the Name for identifying
|
|
this instance
|
|
|
|
Name - Name of this instance
|
|
--*/
|
|
BOOL
|
|
MonBuildInstanceDefinition(
|
|
PERF_INSTANCE_DEFINITION *pBuffer,
|
|
PVOID *pBufferNext,
|
|
DWORD ParentObjectTitleIndex,
|
|
DWORD ParentObjectInstance,
|
|
DWORD UniqueID,
|
|
LPWSTR Name)
|
|
{
|
|
DWORD NameLength;
|
|
LPWSTR pName;
|
|
|
|
// Include trailing null in name size
|
|
NameLength = (lstrlenW(Name) + 1) * sizeof(WCHAR);
|
|
|
|
pBuffer->ByteLength = sizeof(PERF_INSTANCE_DEFINITION) +
|
|
DWORD_MULTIPLE(NameLength);
|
|
|
|
pBuffer->ParentObjectTitleIndex = ParentObjectTitleIndex;
|
|
pBuffer->ParentObjectInstance = ParentObjectInstance;
|
|
pBuffer->UniqueID = UniqueID;
|
|
pBuffer->NameOffset = sizeof(PERF_INSTANCE_DEFINITION);
|
|
pBuffer->NameLength = NameLength;
|
|
|
|
// copy name to name buffer
|
|
pName = (LPWSTR)&pBuffer[1];
|
|
RtlMoveMemory(pName,Name,NameLength);
|
|
|
|
// update "next byte" pointer
|
|
*pBufferNext = (PVOID) ((PCHAR) pBuffer + pBuffer->ByteLength);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
IsNumberInUnicodeList
|
|
|
|
Arguments:
|
|
|
|
IN dwNumber
|
|
DWORD number to find in list
|
|
|
|
IN lpwszUnicodeList
|
|
Null terminated, Space delimited list of decimal numbers
|
|
|
|
Return Value:
|
|
|
|
TRUE:
|
|
dwNumber was found in the list of unicode number strings
|
|
|
|
FALSE:
|
|
dwNumber was not found in the list.
|
|
|
|
--*/
|
|
BOOL
|
|
IsNumberInUnicodeList(
|
|
IN DWORD dwNumber,
|
|
IN LPWSTR lpwszUnicodeList)
|
|
{
|
|
DWORD dwThisNumber;
|
|
DWORD cDigits;
|
|
|
|
if(lpwszUnicodeList == 0) return FALSE;
|
|
|
|
while(TRUE)
|
|
{
|
|
// Skip over leading whitespace.
|
|
while(*lpwszUnicodeList && iswspace(*lpwszUnicodeList))
|
|
{
|
|
lpwszUnicodeList++;
|
|
}
|
|
|
|
// Get number.
|
|
cDigits = 0;
|
|
dwThisNumber = 0;
|
|
while(iswdigit(*lpwszUnicodeList))
|
|
{
|
|
dwThisNumber *= 10;
|
|
dwThisNumber += (*lpwszUnicodeList - L'0');
|
|
cDigits++;
|
|
lpwszUnicodeList++;
|
|
}
|
|
if(cDigits == 0)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// Compare number to reference.
|
|
if(dwThisNumber == dwNumber)
|
|
{
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|