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540 lines
18 KiB
540 lines
18 KiB
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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peb.c
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Abstract:
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WinDbg Extension Api
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Author:
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Ramon J San Andres (ramonsa) 5-Nov-1993
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Environment:
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User Mode.
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Revision History:
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--*/
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#include "precomp.h"
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#pragma hdrstop
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#include <time.h>
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BOOL
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GetTeb32FromWowTeb(ULONG64 Teb, PULONG64 pTeb32)
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{
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if (pTeb32) {
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return ReadPointer(Teb, pTeb32);
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}
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return FALSE;
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}
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BOOL
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GetPeb32FromWowTeb(ULONG64 Teb, PULONG64 pPeb32)
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{
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ULONG Peb32;
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ULONG64 Teb32=0;
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ULONG err;
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if (GetTeb32FromWowTeb(Teb, &Teb32) && Teb32) {
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if (!(err =GetFieldValue(Teb32, "nt!TEB32", "ProcessEnvironmentBlock", Peb32))) {
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*pPeb32 = Peb32;
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return TRUE;
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} else if (err == SYMBOL_TYPE_INFO_NOT_FOUND) {
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if (!(err =GetFieldValue(Teb32, "wow64!TEB32", "ProcessEnvironmentBlock", Peb32))) {
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*pPeb32 = Peb32;
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return TRUE;
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}
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}
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}
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return FALSE;
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}
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HRESULT
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DumpPeb(ULONG64 peb, BOOL IsWow64Peb)
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{
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ULONG64 ldr;
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ULONG64 err;
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ULONG64 ldr_Initialized;
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ULONG64 ldr_InInitializationOrderModuleList_Flink;
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ULONG64 ldr_InInitializationOrderModuleList_Blink;
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ULONG64 ldr_InLoadOrderModuleList_Flink;
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ULONG64 ldr_InLoadOrderModuleList_Blink;
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ULONG ldr_InMemoryOrderModuleList_Offset;
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ULONG64 ldr_InMemoryOrderModuleList_Flink;
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ULONG64 ldr_InMemoryOrderModuleList_Blink;
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ULONG ldr_DataTableEntry_InMemoryOrderLinks_Offset;
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ULONG64 peb_SubSystemData;
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ULONG64 peb_ProcessHeap;
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ULONG64 peb_ProcessParameters;
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PCHAR ldrdata = "nt!_PEB_LDR_DATA";
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PCHAR ldrEntry = "nt!_LDR_DATA_TABLE_ENTRY";
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PCHAR processparam = "nt!_RTL_USER_PROCESS_PARAMETERS";
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HRESULT hr = S_OK;
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if (IsWow64Peb) {
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// try and load types from nt
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if ( err = InitTypeRead( peb, nt!PEB32 ) ) {
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if (err == SYMBOL_TYPE_INFO_NOT_FOUND) {
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// try load types from wow64
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if ( !( err = InitTypeRead( peb, wow64!PEB32 )) ) {
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ldrdata = "wow64!_PEB_LDR_DATA32";
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ldrEntry = "wow64!_LDR_DATA_TABLE_ENTRY32";
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processparam = "wow64!_RTL_USER_PROCESS_PARAMETERS32";
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} else {
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dprintf( "error %d InitTypeRead( wow64!PEB32 at %p)...\n", (ULONG) err, peb);
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return E_INVALIDARG;
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}
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} else {
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dprintf( "error %d InitTypeRead( nt!PEB32 at %p)...\n", (ULONG) err, peb);
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return E_INVALIDARG;
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}
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} else {
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ldrdata = "nt!_PEB_LDR_DATA32";
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ldrEntry = "nt!_LDR_DATA_TABLE_ENTRY32";
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processparam = "nt!_RTL_USER_PROCESS_PARAMETERS32";
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}
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} else {
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if ( err = InitTypeRead( peb, nt!_PEB ) ) {
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dprintf( "error %d InitTypeRead( nt!_PEB at %p)...\n", (ULONG) err, peb);
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return E_INVALIDARG;
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}
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}
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dprintf(
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" InheritedAddressSpace: %s\n"
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" ReadImageFileExecOptions: %s\n"
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" BeingDebugged: %s\n"
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" ImageBaseAddress: %p\n"
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" Ldr %p\n",
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ReadField( InheritedAddressSpace ) ? "Yes" : "No",
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ReadField( ReadImageFileExecOptions ) ? "Yes" : "No",
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ReadField( BeingDebugged ) ? "Yes" : "No",
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ReadField( ImageBaseAddress ),
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(ldr = ReadField( Ldr ))
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);
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peb_SubSystemData = ReadField( SubSystemData );
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peb_ProcessHeap = ReadField( ProcessHeap );
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peb_ProcessParameters = ReadField( ProcessParameters );
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err = GetFieldOffset( ldrdata,
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"InMemoryOrderModuleList",
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&ldr_InMemoryOrderModuleList_Offset
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);
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if ( err ) {
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dprintf( " *** _PEB_LDR_DATA%s was not found...\n",
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( err == FIELDS_DID_NOT_MATCH ) ? ".InMemoryModuleList field" :
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" type"
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);
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}
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else {
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err = GetFieldOffset( ldrEntry,
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"InMemoryOrderLinks",
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&ldr_DataTableEntry_InMemoryOrderLinks_Offset
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);
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if (err ) {
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dprintf( " *** _LDR_DATA_TABLE_ENTRY%s was not found...\n",
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( err == FIELDS_DID_NOT_MATCH ) ? ".InMemoryOrderLinks field" :
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" type"
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);
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}
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}
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if ( err || GetFieldValue( ldr, ldrdata, "Initialized", ldr_Initialized ) ) {
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dprintf( " *** unable to read Ldr table at %p\n", ldr );
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}
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else {
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ULONG64 next, head;
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BOOL First = TRUE;
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GetFieldValue( ldr, ldrdata, "InInitializationOrderModuleList.Flink", ldr_InInitializationOrderModuleList_Flink );
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GetFieldValue( ldr, ldrdata, "InInitializationOrderModuleList.Blink", ldr_InInitializationOrderModuleList_Blink );
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GetFieldValue( ldr, ldrdata, "InLoadOrderModuleList.Flink", ldr_InLoadOrderModuleList_Flink );
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GetFieldValue( ldr, ldrdata, "InLoadOrderModuleList.Blink", ldr_InLoadOrderModuleList_Blink );
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GetFieldValue( ldr, ldrdata, "InMemoryOrderModuleList.Flink", ldr_InMemoryOrderModuleList_Flink );
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GetFieldValue( ldr, ldrdata, "InMemoryOrderModuleList.Blink", ldr_InMemoryOrderModuleList_Blink );
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dprintf(
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" Ldr.Initialized: %s\n"
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" Ldr.InInitializationOrderModuleList: %p . %p\n"
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" Ldr.InLoadOrderModuleList: %p . %p\n"
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" Ldr.InMemoryOrderModuleList: %p . %p\n",
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ldr_Initialized ? "Yes" : "No",
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ldr_InInitializationOrderModuleList_Flink,
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ldr_InInitializationOrderModuleList_Blink,
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ldr_InLoadOrderModuleList_Flink,
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ldr_InLoadOrderModuleList_Blink,
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ldr_InMemoryOrderModuleList_Flink,
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ldr_InMemoryOrderModuleList_Blink
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);
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head = ldr + (ULONG64)ldr_InMemoryOrderModuleList_Offset;
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next = ldr_InMemoryOrderModuleList_Flink;
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while( next != head ) {
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ULONG64 entry, dllBase;
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UNICODE_STRING64 u;
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time_t Timestamp=0;
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const char *time;
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entry = next - ldr_DataTableEntry_InMemoryOrderLinks_Offset;
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if (GetFieldValue( entry, ldrEntry, "DllBase", dllBase )) {
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dprintf("Cannot read %s at %p\n",ldrEntry, entry);
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break;
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}
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GetFieldValue( entry, ldrEntry, "TimeDateStamp", Timestamp );
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GetFieldValue( entry, ldrEntry, "FullDllName.Buffer", u.Buffer );
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GetFieldValue( entry, ldrEntry, "FullDllName.Length", u.Length );
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GetFieldValue( entry, ldrEntry, "FullDllName.MaximumLength", u.MaximumLength );
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if (First) {
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if (IsPtr64()) {
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dprintf(" Base TimeStamp / Module\n");
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} else {
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dprintf(" Base TimeStamp Module\n");
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}
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First = FALSE;
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}
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if (IsPtr64()) {
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dprintf(" ");
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}
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dprintf( "%16p ", dllBase );
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if ((time = ctime((time_t *) &Timestamp)) != NULL) {
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dprintf( "%08x %-20.20s ", Timestamp, time+4);
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}
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if ( u.Buffer ) {
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if (IsPtr64()) {
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dprintf("\n ");
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}
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DumpUnicode64( u );
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}
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dprintf( "\n");
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GetFieldValue( entry, ldrEntry, "InMemoryOrderLinks.Flink", next );
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if (CheckControlC()) {
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break;
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}
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}
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}
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dprintf(
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" SubSystemData: %p\n"
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" ProcessHeap: %p\n"
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" ProcessParameters: %p\n",
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peb_SubSystemData,
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peb_ProcessHeap,
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peb_ProcessParameters
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);
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if ( peb_ProcessParameters ) {
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ULONG64 peb_ProcessParameters_Environment;
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ULONG64 peb_ProcessParameters_Flags;
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UNICODE_STRING64 windowTitle;
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UNICODE_STRING64 imagePathName;
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UNICODE_STRING64 commandLine;
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UNICODE_STRING64 dllPath;
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GetFieldValue( peb_ProcessParameters, processparam, "Environment", peb_ProcessParameters_Environment );
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GetFieldValue( peb_ProcessParameters, processparam, "Flags", peb_ProcessParameters_Flags );
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GetFieldValue( peb_ProcessParameters, processparam, "WindowTitle.Buffer", windowTitle.Buffer );
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GetFieldValue( peb_ProcessParameters, processparam, "WindowTitle.Length", windowTitle.Length );
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GetFieldValue( peb_ProcessParameters, processparam, "WindowTitle.MaximumLength", windowTitle.MaximumLength );
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GetFieldValue( peb_ProcessParameters, processparam, "ImagePathName.Buffer", imagePathName.Buffer );
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GetFieldValue( peb_ProcessParameters, processparam, "ImagePathName.Length", imagePathName.Length );
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GetFieldValue( peb_ProcessParameters, processparam, "ImagePathName.MaximumLength", imagePathName.MaximumLength );
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GetFieldValue( peb_ProcessParameters, processparam, "CommandLine.Buffer", commandLine.Buffer );
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GetFieldValue( peb_ProcessParameters, processparam, "CommandLine.Length", commandLine.Length );
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GetFieldValue( peb_ProcessParameters, processparam, "CommandLine.MaximumLength", commandLine.MaximumLength );
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GetFieldValue( peb_ProcessParameters, processparam, "DllPath.Buffer", dllPath.Buffer );
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GetFieldValue( peb_ProcessParameters, processparam, "DllPath.Length", dllPath.Length );
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GetFieldValue( peb_ProcessParameters, processparam, "DllPath.MaximumLength", dllPath.MaximumLength );
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if ( !(peb_ProcessParameters_Flags & RTL_USER_PROC_PARAMS_NORMALIZED) ) {
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windowTitle.Buffer += peb_ProcessParameters;
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imagePathName.Buffer += peb_ProcessParameters;
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commandLine.Buffer += peb_ProcessParameters;
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dllPath.Buffer += peb_ProcessParameters;
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}
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dprintf(
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" WindowTitle: '" );
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DumpUnicode64( windowTitle );
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dprintf("'\n");
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dprintf(
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" ImageFile: '" );
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DumpUnicode64( imagePathName );
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dprintf("'\n");
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dprintf(
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" CommandLine: '" );
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DumpUnicode64( commandLine );
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dprintf("'\n");
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dprintf(
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" DllPath: '" );
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DumpUnicode64( dllPath );
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dprintf("'\n"
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" Environment: %p\n", peb_ProcessParameters_Environment );
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{
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WCHAR EnvBuf[0x4000];
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WCHAR *Env = EnvBuf;
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ULONG cb;
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if (ReadMemory(peb_ProcessParameters_Environment, Env,
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sizeof(EnvBuf)-4, &cb))
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{
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EnvBuf[cb /2] = 0;
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EnvBuf[(cb /2)+ 1] = 0;
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//
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// Go until we reach a double NULL unicode
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//
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while(*(Env+1) != 0)
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{
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dprintf(" %ws\n", Env);
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while(*Env++ != 0);
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}
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if ((PUCHAR) Env >= (PUCHAR)EnvBuf + (sizeof(EnvBuf)-4))
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{
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dprintf("\n use 'db %p' to see remaining "
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"environment variables\n",
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peb_ProcessParameters_Environment + sizeof(EnvBuf));
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}
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}
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}
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}
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else {
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dprintf( " *** unable to read process parameters\n" );
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}
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return S_OK;
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}
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DECLARE_API( peb )
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/*++
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Routine Description:
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This function is called to dump the PEB
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Called as:
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!peb
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Arguments:
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None
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Return Value:
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None
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--*/
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{
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ULONG64 pebAddress;
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ULONG64 peb;
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HRESULT hr = S_OK;
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INIT_API();
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if ( *args ) {
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pebAddress = GetExpression( args );
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} else {
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ULONG64 tebAddress;
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tebAddress = GetExpression("@$teb");
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if (TargetMachine == IMAGE_FILE_MACHINE_IA64 && tebAddress) {
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ULONG64 Peb32=0;
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if (GetPeb32FromWowTeb(tebAddress, &Peb32) && Peb32) {
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dprintf("Wow64 PEB32 at %lx\n", Peb32);
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DumpPeb(Peb32, TRUE);
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dprintf("\n\nWow64 ");
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}
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}
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pebAddress = GetExpression("@$peb");
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//GetPebAddress( 0, &pebAddress );
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}
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if ( pebAddress ) {
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dprintf( "PEB at %p\n", pebAddress );
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}
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else {
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dprintf( "PEB NULL...\n" );
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return E_INVALIDARG;
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}
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peb = IsPtr64() ? pebAddress : (ULONG64)(LONG64)(LONG)pebAddress;
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hr = DumpPeb(peb, FALSE);
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EXIT_API();
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return hr;
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} // PebExtension()
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HRESULT
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DumpTeb(ULONG64 tebAddress, BOOL IsWow64Teb)
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{
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ULONG64 teb;
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ULONG64 tib_ExceptionList;
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ULONG64 tib_StackBase;
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ULONG64 tib_StackLimit;
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ULONG64 tib_StackSusSystemTib;
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ULONG64 tib_FiberData;
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ULONG64 tib_ArbitraryUserPointer;
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ULONG64 tib_Self;
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ULONG64 tib_EnvironmentPointer;
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ULONG64 teb_ClientId_UniqueProcess;
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ULONG64 teb_ClientId_UniqueThread;
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ULONG64 teb_RealClientId_UniqueProcess;
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ULONG64 teb_RealClientId_UniqueThread;
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ULONG64 DeallocationBStore;
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HRESULT hr = S_OK;
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ULONG64 err;
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ULONG64 UseHardErrorsAreDisabled;
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ULONG HardErrorModeOffset;
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PCHAR TebType;
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teb = tebAddress;
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if (!IsWow64Teb) {
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TebType = "nt!_TEB";
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if ( InitTypeRead( teb, nt!_TEB ) ) {
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dprintf( "error InitTypeRead( TEB )...\n");
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return E_INVALIDARG;
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}
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} else {
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TebType = "nt!TEB32";
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if ( err = InitTypeRead( teb, nt!TEB32 ) ) {
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if (err == SYMBOL_TYPE_INFO_NOT_FOUND) {
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TebType = "wow64!TEB32";
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if ( InitTypeRead( teb, wow64!TEB32 ) ) {
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dprintf( "error InitTypeRead( wow64!TEB32 )...\n");
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return E_INVALIDARG;
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}
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} else {
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dprintf( "error InitTypeRead( TEB32 )...\n");
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return E_INVALIDARG;
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}
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}
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}
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dprintf(
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" ExceptionList: %p\n"
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" StackBase: %p\n"
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" StackLimit: %p\n"
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" SubSystemTib: %p\n"
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" FiberData: %p\n"
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" ArbitraryUserPointer: %p\n"
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" Self: %p\n"
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" EnvironmentPointer: %p\n",
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GetShortField(0, "NtTib.ExceptionList", 0),
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ReadField( NtTib.StackBase ),
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GetShortField(0, "NtTib.StackLimit", 0),
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GetShortField(0, "NtTib.SubsystemTib", 0),
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GetShortField(0, "NtTib.FiberData", 0),
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GetShortField(0, "NtTib.ArbitraryUsetPointer", 0),
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GetShortField(0, "NtTib.Self", 0),
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GetShortField(0, "NtTib.EnvironmentPointer", 0)
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);
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teb_ClientId_UniqueProcess = GetShortField( 0, "ClientId.UniqueProcess", 0 );
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teb_ClientId_UniqueThread = GetShortField( 0, "ClientId.UniqueThread", 0 );
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teb_RealClientId_UniqueProcess = GetShortField( 0, "RealClientId.UniqueProcess", 0 );
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teb_RealClientId_UniqueThread = GetShortField( 0, "RealClientId.UniqueThread", 0 );
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dprintf(
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" ClientId: %p . %p\n", teb_ClientId_UniqueProcess, teb_ClientId_UniqueThread );
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if ( teb_ClientId_UniqueProcess != teb_RealClientId_UniqueProcess ||
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teb_ClientId_UniqueThread != teb_RealClientId_UniqueThread )
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{
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dprintf(
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" Real ClientId: %p . %p\n", teb_RealClientId_UniqueProcess, teb_RealClientId_UniqueThread );
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}
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UseHardErrorsAreDisabled = GetFieldOffset(TebType,
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"HardErrorMode",
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&HardErrorModeOffset);
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dprintf(
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" RpcHandle: %p\n"
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" Tls Storage: %p\n"
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" PEB Address: %p\n"
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" LastErrorValue: %u\n"
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" LastStatusValue: %x\n"
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" Count Owned Locks: %u\n"
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" HardErrorMode: %x\n",
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ReadField( ActiveRpcHandle ),
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ReadField( ThreadLocalStoragePointer ),
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ReadField( ProcessEnvironmentBlock ),
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(ULONG)ReadField( LastErrorValue ),
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(ULONG)ReadField( LastStatusValue ),
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(ULONG)ReadField( CountOfOwnedCriticalSections ),
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(ULONG) (UseHardErrorsAreDisabled
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? ReadField( HardErrorsAreDisabled )
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: ReadField( HardErrorMode ))
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);
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if (TargetMachine == IMAGE_FILE_MACHINE_IA64 && !IsWow64Teb) {
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dprintf(
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" DeallocationBStore: %p\n"
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" BStoreLimit: %p\n",
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ReadField(DeallocationBStore),
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ReadField( BStoreLimit )
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);
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}
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return hr;
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} // DumpTeb()
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DECLARE_API( teb )
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/*++
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Routine Description:
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This function is called to dump the TEB
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Called as:
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!teb
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--*/
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{
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ULONG64 tebAddress;
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HRESULT hr = S_OK;
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INIT_API();
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if ( *args ) {
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tebAddress = GetExpression( args );
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} else {
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tebAddress = GetExpression("@$teb");
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}
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if ( tebAddress ) {
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if (TargetMachine == IMAGE_FILE_MACHINE_IA64 && tebAddress) {
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ULONG64 Teb32=0;
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if (GetTeb32FromWowTeb(tebAddress, &Teb32) && Teb32) {
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dprintf("Wow64 TEB32 at %p\n", Teb32);
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DumpTeb(Teb32, TRUE);
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dprintf("\n\nWow64 ");
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}
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}
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dprintf( "TEB at %p\n", tebAddress );
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} else {
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dprintf( "TEB NULL...\n" );
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hr = E_INVALIDARG;
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goto ExitTeb;
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}
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// tebAddress = IsPtr64() ? tebAddress : (ULONG64)(LONG64)(LONG)tebAddress;
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hr = DumpTeb(tebAddress, FALSE);
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ExitTeb:
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EXIT_API();
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return hr;
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}
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