418 lines
10 KiB
C
418 lines
10 KiB
C
|
#include "precomp.h"
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
MEMBER_VARIABLE_INFO _MemberInfo;
|
||
|
|
|
||
|
|
|
||
|
|
#define STATE_FILENAME "tcpipext.state"
|
||
|
|
|
||
|
|
STRUCTURE_TABLE StructureTable[] =
|
||
|
|
{
|
||
|
|
{ NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
BOOL NextListEntry( ULONG Current, PULONG Next );
|
||
|
|
BOOL PrevListEntry( ULONG Current, PULONG Prev );
|
||
|
|
|
||
|
|
VOID NextElement( PMEMBER_VARIABLE_INFO pMemberInfo );
|
||
|
|
VOID PrevElement( PMEMBER_VARIABLE_INFO pMemberInfo );
|
||
|
|
VOID DumpListItem( PMEMBER_VARIABLE_INFO pMemberInfo );
|
||
|
|
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
LocateMemberVariable
|
||
|
|
(
|
||
|
|
PCHAR pchStructName,
|
||
|
|
PCHAR pchMemberName,
|
||
|
|
PVOID pvStructure,
|
||
|
|
PMEMBER_VARIABLE_INFO pMemberInfo
|
||
|
|
)
|
||
|
|
{
|
||
|
|
BOOL bMatch;
|
||
|
|
int index;
|
||
|
|
PMEMBER_TABLE pMemberTable;
|
||
|
|
CHAR pchCurrent[ MAX_LIST_VARIABLE_NAME_LENGTH + 1 ];
|
||
|
|
CHAR _pchStructName[ MAX_LIST_VARIABLE_NAME_LENGTH + 1 ];
|
||
|
|
CHAR _pchMemberName[ MAX_LIST_VARIABLE_NAME_LENGTH + 1 ];
|
||
|
|
|
||
|
|
dprintf( "LocateMemberVariable( \"%s\", \"%s\", 0x%08X )\n", pchStructName, pchMemberName, pMemberInfo );
|
||
|
|
|
||
|
|
strcpy( _pchStructName, pchStructName );
|
||
|
|
strcpy( _pchMemberName, pchMemberName );
|
||
|
|
|
||
|
|
_strupr( _pchStructName );
|
||
|
|
_strupr( _pchMemberName );
|
||
|
|
|
||
|
|
pMemberInfo->StructureIndex = 0;
|
||
|
|
pMemberInfo->MemberIndex = 0;
|
||
|
|
|
||
|
|
bMatch = FALSE;
|
||
|
|
|
||
|
|
for ( index = 0; StructureTable[ index ].pchStructName != NULL; index ++ )
|
||
|
|
{
|
||
|
|
strcpy( pchCurrent, StructureTable[ index ].pchStructName );
|
||
|
|
_strupr( pchCurrent );
|
||
|
|
|
||
|
|
if ( strstr( pchCurrent, _pchStructName ))
|
||
|
|
{
|
||
|
|
if ( bMatch )
|
||
|
|
{
|
||
|
|
dprintf( "The specified structure name is ambiguous.\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberInfo->StructureIndex = index;
|
||
|
|
|
||
|
|
bMatch = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !bMatch )
|
||
|
|
{
|
||
|
|
dprintf( "No matching structure name was found.\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberTable = StructureTable[ pMemberInfo->StructureIndex ].pMemberTable;
|
||
|
|
|
||
|
|
bMatch = FALSE;
|
||
|
|
|
||
|
|
for ( index = 0; pMemberTable[ index ].pchMemberName != NULL; index ++ )
|
||
|
|
{
|
||
|
|
strcpy( pchCurrent, pMemberTable[ index ].pchMemberName );
|
||
|
|
_strupr( pchCurrent );
|
||
|
|
|
||
|
|
if ( strstr( pchCurrent, _pchMemberName ))
|
||
|
|
{
|
||
|
|
if ( bMatch )
|
||
|
|
{
|
||
|
|
dprintf( "The variable specified is ambiguous.\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberInfo->MemberIndex = index;
|
||
|
|
|
||
|
|
bMatch = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !bMatch )
|
||
|
|
{
|
||
|
|
dprintf( "No matching member name was found in the %s structure.\n", pchStructName );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberInfo->prHeadContainingObject = ( ULONG )pvStructure;
|
||
|
|
pMemberInfo->prHeadLinkage = (( ULONG )pvStructure ) + pMemberTable[ pMemberInfo->MemberIndex ].cbOffsetToHead;
|
||
|
|
pMemberInfo->prCurrentLinkage = pMemberInfo->prHeadLinkage;
|
||
|
|
pMemberInfo->cCurrentElement = 0;
|
||
|
|
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL WriteMemberInfo( PMEMBER_VARIABLE_INFO pMemberInfo )
|
||
|
|
{
|
||
|
|
HANDLE hStateFile;
|
||
|
|
DWORD dwWritten;
|
||
|
|
|
||
|
|
hStateFile = CreateFile( STATE_FILENAME,
|
||
|
|
GENERIC_WRITE,
|
||
|
|
0,
|
||
|
|
NULL,
|
||
|
|
CREATE_ALWAYS,
|
||
|
|
FILE_ATTRIBUTE_NORMAL,
|
||
|
|
NULL );
|
||
|
|
|
||
|
|
if ( hStateFile == INVALID_HANDLE_VALUE )
|
||
|
|
{
|
||
|
|
dprintf( "Can't create state file\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !WriteFile( hStateFile,
|
||
|
|
pMemberInfo,
|
||
|
|
sizeof( MEMBER_VARIABLE_INFO ),
|
||
|
|
&dwWritten,
|
||
|
|
NULL ) || ( dwWritten != sizeof( MEMBER_VARIABLE_INFO )))
|
||
|
|
{
|
||
|
|
dprintf( "Can't write to state file\n" );
|
||
|
|
CloseHandle( hStateFile );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
CloseHandle( hStateFile );
|
||
|
|
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL ReadMemberInfo( PMEMBER_VARIABLE_INFO pMemberInfo )
|
||
|
|
{
|
||
|
|
HANDLE hStateFile;
|
||
|
|
DWORD dwRead;
|
||
|
|
|
||
|
|
hStateFile = CreateFile( STATE_FILENAME,
|
||
|
|
GENERIC_READ,
|
||
|
|
0,
|
||
|
|
NULL,
|
||
|
|
OPEN_EXISTING,
|
||
|
|
FILE_ATTRIBUTE_NORMAL,
|
||
|
|
NULL );
|
||
|
|
|
||
|
|
if ( hStateFile == INVALID_HANDLE_VALUE )
|
||
|
|
{
|
||
|
|
dprintf( "Can't open state file\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !ReadFile( hStateFile,
|
||
|
|
pMemberInfo,
|
||
|
|
sizeof( MEMBER_VARIABLE_INFO ),
|
||
|
|
&dwRead,
|
||
|
|
NULL ) || ( dwRead != sizeof( MEMBER_VARIABLE_INFO )))
|
||
|
|
{
|
||
|
|
dprintf( "Can't read from state file\n" );
|
||
|
|
CloseHandle( hStateFile );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
CloseHandle( hStateFile );
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
DECLARE_API( next )
|
||
|
|
{
|
||
|
|
MEMBER_VARIABLE_INFO MemberInfo;
|
||
|
|
|
||
|
|
if ( !ReadMemberInfo( &MemberInfo ) )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
NextElement( &MemberInfo );
|
||
|
|
DumpListItem( &MemberInfo );
|
||
|
|
WriteMemberInfo( &MemberInfo );
|
||
|
|
}
|
||
|
|
|
||
|
|
DECLARE_API( prev )
|
||
|
|
{
|
||
|
|
MEMBER_VARIABLE_INFO MemberInfo;
|
||
|
|
|
||
|
|
if ( !ReadMemberInfo( &MemberInfo ) )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
PrevElement( &MemberInfo );
|
||
|
|
DumpListItem( &MemberInfo );
|
||
|
|
WriteMemberInfo( &MemberInfo );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID DumpListItem( PMEMBER_VARIABLE_INFO pMemberInfo )
|
||
|
|
{
|
||
|
|
PBYTE pbObject;
|
||
|
|
PMEMBER_TABLE pMemberTable;
|
||
|
|
|
||
|
|
dprintf( "Focus is on: %s.%s, element # %d\n",
|
||
|
|
StructureTable[ pMemberInfo->StructureIndex ].pchStructName,
|
||
|
|
StructureTable[ pMemberInfo->StructureIndex ].pMemberTable[ pMemberInfo->MemberIndex ].pchMemberName,
|
||
|
|
pMemberInfo->cCurrentElement );
|
||
|
|
|
||
|
|
pMemberTable = &StructureTable[ pMemberInfo->StructureIndex ].pMemberTable[ pMemberInfo->MemberIndex ];
|
||
|
|
|
||
|
|
if ( pMemberInfo->prCurrentLinkage == pMemberInfo->prHeadLinkage )
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Rather than dumping the head list item, dump all the items on the list,
|
||
|
|
// in summary form.
|
||
|
|
//
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
NextElement( pMemberInfo );
|
||
|
|
|
||
|
|
if ( pMemberInfo->prCurrentLinkage != pMemberInfo->prHeadLinkage )
|
||
|
|
{
|
||
|
|
pbObject = (( PBYTE )pMemberInfo->prCurrentLinkage )
|
||
|
|
- pMemberTable->cbOffsetToLink;
|
||
|
|
|
||
|
|
pMemberTable->DumpStructure( ( ULONG )pbObject, VERBOSITY_ONE_LINER );
|
||
|
|
dprintf( "\n" );
|
||
|
|
}
|
||
|
|
} while ( pMemberInfo->prCurrentLinkage != pMemberInfo->prHeadLinkage );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pbObject = (( PBYTE )pMemberInfo->prCurrentLinkage )
|
||
|
|
- pMemberTable->cbOffsetToLink;
|
||
|
|
|
||
|
|
pMemberTable->DumpStructure( ( ULONG )pbObject, VERBOSITY_NORMAL );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID NextElement( PMEMBER_VARIABLE_INFO pMemberInfo )
|
||
|
|
{
|
||
|
|
ULONG NextLinkage;
|
||
|
|
PMEMBER_TABLE pMember;
|
||
|
|
|
||
|
|
pMember = &StructureTable[ pMemberInfo->StructureIndex ].pMemberTable[ pMemberInfo->MemberIndex ];
|
||
|
|
|
||
|
|
if ( !pMember->Next( pMemberInfo->prCurrentLinkage, &NextLinkage ))
|
||
|
|
{
|
||
|
|
dprintf( "Command failed.\n" );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberInfo->prCurrentLinkage = NextLinkage;
|
||
|
|
pMemberInfo->cCurrentElement++;
|
||
|
|
|
||
|
|
if ( pMemberInfo->prCurrentLinkage == pMemberInfo->prHeadLinkage )
|
||
|
|
{
|
||
|
|
pMemberInfo->cCurrentElement = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL NextListEntry( ULONG Current, PULONG Next )
|
||
|
|
{
|
||
|
|
ULONG result;
|
||
|
|
ULONG prNextEntry;
|
||
|
|
LIST_ENTRY Entry;
|
||
|
|
LIST_ENTRY NextEntry;
|
||
|
|
|
||
|
|
if ( !ReadMemory( Current,
|
||
|
|
&Entry,
|
||
|
|
sizeof( Entry ),
|
||
|
|
&result ))
|
||
|
|
{
|
||
|
|
dprintf( "Couldn't read current list entry at 0x%08X.\n", Current );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
prNextEntry = ( ULONG )Entry.Flink;
|
||
|
|
|
||
|
|
if ( !ReadMemory( prNextEntry,
|
||
|
|
&NextEntry,
|
||
|
|
sizeof( NextEntry ),
|
||
|
|
&result ))
|
||
|
|
{
|
||
|
|
dprintf( "Couldn't read next list entry at 0x%08X.\n", prNextEntry );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( ULONG )NextEntry.Blink != Current )
|
||
|
|
{
|
||
|
|
dprintf( "Next entry's Blink doesn't match current entry's address.\n" );
|
||
|
|
dprintf( "The list might be corrupt, or you may be using traversal state saved before the list changed.\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
*Next = prNextEntry;
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID PrevElement( PMEMBER_VARIABLE_INFO pMemberInfo )
|
||
|
|
{
|
||
|
|
ULONG PrevLinkage;
|
||
|
|
PMEMBER_TABLE pMember;
|
||
|
|
|
||
|
|
pMember = &StructureTable[ pMemberInfo->StructureIndex ].pMemberTable[ pMemberInfo->MemberIndex ];
|
||
|
|
|
||
|
|
if ( !pMember->Prev( pMemberInfo->prCurrentLinkage, &PrevLinkage ))
|
||
|
|
{
|
||
|
|
dprintf( "Command failed.\n" );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
pMemberInfo->prCurrentLinkage = PrevLinkage;
|
||
|
|
pMemberInfo->cCurrentElement++;
|
||
|
|
|
||
|
|
if ( pMemberInfo->prCurrentLinkage == pMemberInfo->prHeadLinkage )
|
||
|
|
{
|
||
|
|
pMemberInfo->cCurrentElement = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL PrevListEntry( ULONG Current, PULONG Prev )
|
||
|
|
{
|
||
|
|
ULONG result;
|
||
|
|
ULONG prPrevEntry;
|
||
|
|
LIST_ENTRY Entry;
|
||
|
|
LIST_ENTRY PrevEntry;
|
||
|
|
|
||
|
|
if ( !ReadMemory( Current,
|
||
|
|
&Entry,
|
||
|
|
sizeof( Entry ),
|
||
|
|
&result ))
|
||
|
|
{
|
||
|
|
dprintf( "Couldn't read current list entry at 0x%08X.\n", Current );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
prPrevEntry = ( ULONG )Entry.Blink;
|
||
|
|
|
||
|
|
if ( !ReadMemory( prPrevEntry,
|
||
|
|
&PrevEntry,
|
||
|
|
sizeof( PrevEntry ),
|
||
|
|
&result ))
|
||
|
|
{
|
||
|
|
dprintf( "Couldn't read previous list entry at 0x%08X.\n", prPrevEntry );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( ULONG )PrevEntry.Blink != Current )
|
||
|
|
{
|
||
|
|
dprintf( "Previous entry's Blink doesn't match current entry's address.\n" );
|
||
|
|
dprintf( "The list might be corrupt, or you may be using traversal state saved before the list changed.\n" );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
*Prev = prPrevEntry;
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL ReadArgsForTraverse( const char *args, char *VarName )
|
||
|
|
{
|
||
|
|
PCHAR pchListVar;
|
||
|
|
int index;
|
||
|
|
BOOL bRetval = FALSE;
|
||
|
|
|
||
|
|
pchListVar = strstr( args, "-l" );
|
||
|
|
|
||
|
|
if ( pchListVar )
|
||
|
|
{
|
||
|
|
pchListVar += 2;
|
||
|
|
|
||
|
|
while ( *pchListVar == ' ' )
|
||
|
|
{
|
||
|
|
pchListVar ++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( *pchListVar == '\0' )
|
||
|
|
{
|
||
|
|
dprintf( "NOT IMPLEMENTED: usage on -l\n" );
|
||
|
|
return( bRetval );
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( index = 0; index < MAX_LIST_VARIABLE_NAME_LENGTH; index ++ )
|
||
|
|
{
|
||
|
|
VarName[ index ] = *pchListVar;
|
||
|
|
|
||
|
|
if ( *pchListVar == ' ' || *pchListVar == '\0' )
|
||
|
|
{
|
||
|
|
VarName[ index ] = '\0';
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
VarName[ index + 1 ] = '\0';
|
||
|
|
|
||
|
|
pchListVar ++;
|
||
|
|
}
|
||
|
|
|
||
|
|
bRetval = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return( bRetval );
|
||
|
|
}
|