Source code of Windows XP (NT5)
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/*++
Copyright (c) 1998 Microsoft Corporation
Module Name:
logging.c
Abstract:
Commands to control how logging information is performed.
Revision History:
--*/
#include "precomp.h"
#pragma hdrstop
static const WCHAR g_pszRegValTracingFile[] = L"EnableFileTracing";
static const WCHAR g_pszRegKeyTracing[] = L"SOFTWARE\\Microsoft\\Tracing";
typedef struct _TRACING_DATA
{
HKEY hkMachine;
HKEY hkFlags;
DWORD dwServerFlags;
} TRACING_DATA;
//
// Opens the root tracing registry key
//
DWORD
TraceOpenRoot(
OUT PHKEY phKey)
{
DWORD dwErr = NO_ERROR;
dwErr = RegOpenKeyExW(
g_pServerInfo->hkMachine,
g_pszRegKeyTracing,
0,
KEY_ALL_ACCESS,
phKey);
return dwErr;
}
DWORD
TraceOpenKey(
IN HKEY hkRoot,
IN LPCWSTR pszKey,
OUT PHKEY phKey)
{
return RegOpenKeyExW(
hkRoot,
pszKey,
0,
KEY_ALL_ACCESS,
phKey);
}
DWORD
TraceCloseKey(
IN HKEY hKey)
{
return RegCloseKey(hKey);
}
DWORD
TraceWrite(
IN HKEY hkComp,
IN DWORD dwEnable)
{
return RutlRegWriteDword(
hkComp,
(PWCHAR)g_pszRegValTracingFile,
dwEnable);
}
DWORD
TraceRead(
IN HKEY hkComp,
IN LPDWORD lpdwEnable)
{
return RutlRegReadDword(
hkComp,
(PWCHAR)g_pszRegValTracingFile,
lpdwEnable);
}
DWORD
TraceShow(
IN LPCWSTR pszName,
IN HKEY hKey,
IN HANDLE hData)
{
DWORD dwErr = NO_ERROR, dwEnabled = 0;
do
{
// Get the enabling of the current component
//
dwErr = TraceRead(hKey, &dwEnabled);
BREAK_ON_DWERR(dwErr);
// Display the status
//
DisplayMessage(
g_hModule,
MSG_TRACE_SHOW,
pszName,
(dwEnabled) ? TOKEN_ENABLED : TOKEN_DISABLED);
} while (FALSE);
// Cleanup
{
}
return dwErr;
}
DWORD
TraceDumpComponent(
IN LPCWSTR pszName,
IN HKEY hKey,
IN HANDLE hData)
{
PWCHAR pszComp = NULL, pszEnable = NULL, pszQuote = NULL;
DWORD dwErr = NO_ERROR, dwEnabled = 0;
DWORD* pdwShowDisable = (DWORD*)hData;
do
{
dwErr = TraceRead(hKey, &dwEnabled);
BREAK_ON_DWERR(dwErr);
pszQuote = MakeQuotedString(pszName);
pszComp = RutlAssignmentFromTokens(
g_hModule,
TOKEN_COMPONENT,
pszQuote);
pszEnable = RutlAssignmentFromTokens(
g_hModule,
TOKEN_STATE,
(dwEnabled) ? TOKEN_ENABLED : TOKEN_DISABLED);
if (pszQuote == NULL || pszComp == NULL || pszEnable == NULL)
{
dwErr = ERROR_NOT_ENOUGH_MEMORY;
break;
}
if (dwEnabled || (pdwShowDisable && *pdwShowDisable))
{
DisplayMessage(
g_hModule,
MSG_TRACE_DUMP,
DMP_TRACE_SET,
pszComp,
pszEnable);
}
} while (FALSE);
// Cleanup
{
RutlFree(pszComp);
RutlFree(pszEnable);
RutlFree(pszQuote);
}
return dwErr;
}
DWORD
TraceEnableDisable(
IN LPCWSTR pszName,
IN HKEY hKey,
IN HANDLE hData)
{
DWORD dwErr = NO_ERROR, dwEnabled = 0;
DWORD* pdwEnable = (DWORD*)hData;
do
{
// Get the enabling of the current component
//
dwErr = TraceWrite(hKey, *pdwEnable);
BREAK_ON_DWERR(dwErr);
} while (FALSE);
// Cleanup
{
}
return dwErr;
}
//
// Dumps configuration
//
DWORD
TraceDumpConfig(
IN HANDLE hFile
)
{
PWCHAR pszComp = NULL, pszEnable = NULL;
DWORD dwErr = NO_ERROR;
HKEY hkRoot = NULL;
do
{
pszComp = RutlAssignmentFromTokens(
g_hModule,
TOKEN_COMPONENT,
L"*");
pszEnable = RutlAssignmentFromTokens(
g_hModule,
TOKEN_STATE,
TOKEN_DISABLED);
if (pszComp == NULL || pszEnable == NULL)
{
dwErr = ERROR_NOT_ENOUGH_MEMORY;
break;
}
DisplayMessage(
g_hModule,
MSG_TRACE_DUMP,
DMP_TRACE_SET,
pszComp,
pszEnable);
dwErr = TraceOpenRoot(&hkRoot);
BREAK_ON_DWERR(dwErr);
dwErr = RutlRegEnumKeys(
hkRoot,
TraceDumpComponent,
NULL);
BREAK_ON_DWERR(dwErr);
} while (FALSE);
// Cleanup
{
RutlFree(pszComp);
RutlFree(pszEnable);
if (hkRoot)
{
RegCloseKey(hkRoot);
}
}
return NO_ERROR;
}
DWORD
HandleTraceSet(
IN LPCWSTR pwszMachine,
IN OUT LPWSTR *ppwcArguments,
IN DWORD dwCurrentIndex,
IN DWORD dwArgCount,
IN DWORD dwFlags,
IN LPCVOID pvData,
OUT BOOL *pbDone
)
{
DWORD dwErr = NO_ERROR, dwEnable;
PWCHAR pszComponent = NULL;
HKEY hkRoot = NULL, hkComp = NULL;
TOKEN_VALUE rgEnumState[] =
{
{TOKEN_ENABLED, 1},
{TOKEN_DISABLED, 0}
};
RASMON_CMD_ARG pArgs[] =
{
{
RASMONTR_CMD_TYPE_STRING,
{TOKEN_COMPONENT, TRUE, FALSE},
NULL,
0,
NULL
},
{
RASMONTR_CMD_TYPE_ENUM,
{TOKEN_STATE, TRUE, FALSE},
rgEnumState,
sizeof(rgEnumState)/sizeof(*rgEnumState),
NULL
}
};
do
{
// Parse the command line
//
dwErr = RutlParse(
ppwcArguments,
dwCurrentIndex,
dwArgCount,
pbDone,
pArgs,
sizeof(pArgs)/sizeof(*pArgs));
BREAK_ON_DWERR( dwErr );
pszComponent = RASMON_CMD_ARG_GetPsz(&pArgs[0]);
dwEnable = RASMON_CMD_ARG_GetDword(&pArgs[1]);
// Whistler bug 259800 PREFIX
//
if(pszComponent == NULL)
{
dwErr = ERROR_INVALID_SYNTAX;
break;
}
dwErr = TraceOpenRoot(&hkRoot);
BREAK_ON_DWERR(dwErr);
if (wcscmp(pszComponent, L"*") == 0)
{
dwErr = RutlRegEnumKeys(
hkRoot,
TraceEnableDisable,
(HANDLE)&dwEnable);
BREAK_ON_DWERR(dwErr);
}
else
{
dwErr = TraceOpenKey(hkRoot, pszComponent, &hkComp);
BREAK_ON_DWERR(dwErr);
TraceWrite(hkComp, dwEnable);
BREAK_ON_DWERR(dwErr);
}
} while (FALSE);
// Cleanup
{
RutlFree(pszComponent);
if (hkRoot)
{
RegCloseKey(hkRoot);
}
if (hkComp)
{
RegCloseKey(hkComp);
}
}
return dwErr;
}
DWORD
HandleTraceShow(
IN LPCWSTR pwszMachine,
IN OUT LPWSTR *ppwcArguments,
IN DWORD dwCurrentIndex,
IN DWORD dwArgCount,
IN DWORD dwFlags,
IN LPCVOID pvData,
OUT BOOL *pbDone
)
{
DWORD dwErr = NO_ERROR;
PWCHAR pszComponent = NULL;
HKEY hkRoot = NULL, hkComp = NULL;
RASMON_CMD_ARG pArgs[] =
{
{
RASMONTR_CMD_TYPE_STRING,
{TOKEN_COMPONENT, FALSE, FALSE},
NULL,
0,
NULL
}
};
do
{
// Parse the command line
//
dwErr = RutlParse(
ppwcArguments,
dwCurrentIndex,
dwArgCount,
pbDone,
pArgs,
sizeof(pArgs)/sizeof(*pArgs));
BREAK_ON_DWERR( dwErr );
pszComponent = RASMON_CMD_ARG_GetPsz(&pArgs[0]);
dwErr = TraceOpenRoot(&hkRoot);
BREAK_ON_DWERR(dwErr);
if (pszComponent)
{
dwErr = TraceOpenKey(hkRoot, pszComponent, &hkComp);
BREAK_ON_DWERR(dwErr);
TraceShow(pszComponent, hkComp, NULL);
BREAK_ON_DWERR(dwErr);
}
else
{
dwErr = RutlRegEnumKeys(
hkRoot,
TraceShow,
NULL);
BREAK_ON_DWERR(dwErr);
}
} while (FALSE);
// Cleanup
{
RutlFree(pszComponent);
if (hkRoot)
{
RegCloseKey(hkRoot);
}
if (hkComp)
{
RegCloseKey(hkComp);
}
}
return dwErr;
}