92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
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/****************************** Module Header ******************************\
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* Module Name: debug.c
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* Copyright (c) 1985 - 1999, Microsoft Corporation
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* This module contains random debugging related functions.
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* History:
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* 17-May-1991 DarrinM Created.
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* 22-Jan-1992 IanJa ANSI/Unicode neutral (all debug output is ANSI)
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*/
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#include "precomp.h"
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#pragma hdrstop
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extern FARPROC gpfnAttachRoutine;
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/*
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* ActivateDebugger
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* Force an exception on the active application's context so it will break
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* into the debugger.
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* History:
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* 05-10-91 DarrinM Created.
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*/
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ULONG SrvActivateDebugger(
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IN OUT PCSR_API_MSG m,
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IN OUT PCSR_REPLY_STATUS ReplyStatus)
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{
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PACTIVATEDEBUGGERMSG a = (PACTIVATEDEBUGGERMSG)&m->u.ApiMessageData;
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PCSR_THREAD Thread;
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NTSTATUS Status;
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UNREFERENCED_PARAMETER(ReplyStatus);
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/*
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* If the process is CSR, break
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*/
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if (a->ClientId.UniqueProcess == NtCurrentTeb()->ClientId.UniqueProcess) {
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DbgBreakPoint();
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return STATUS_SUCCESS;
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}
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/*
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* Impersonate the client if this is a user mode request.
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*/
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if (m->h.u2.s2.Type == LPC_REQUEST) {
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if (!CsrImpersonateClient(NULL)) {
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return STATUS_UNSUCCESSFUL;
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}
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}
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/*
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* Lock the client thread
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*/
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Status = CsrLockThreadByClientId(a->ClientId.UniqueThread, &Thread);
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if (NT_SUCCESS(Status)) {
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ASSERT(a->ClientId.UniqueProcess == Thread->ClientId.UniqueProcess);
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/*
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* Now that everything is set, rtlremote call to a debug breakpoint.
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* This causes the process to enter the debugger with a breakpoint.
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*/
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Status = RtlRemoteCall(
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Thread->Process->ProcessHandle,
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Thread->ThreadHandle,
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(PVOID)gpfnAttachRoutine,
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0,
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NULL,
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TRUE,
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FALSE
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);
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UserAssert(NT_SUCCESS(Status));
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Status = NtAlertThread(Thread->ThreadHandle);
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UserAssert(NT_SUCCESS(Status));
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CsrUnlockThread(Thread);
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}
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/*
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* Stop impersonating the client.
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*/
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if (m->h.u2.s2.Type == LPC_REQUEST) {
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CsrRevertToSelf();
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}
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return Status;
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}
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