Source code of Windows XP (NT5)
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/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
tcpext.c
Abstract:
This file contains the generic routines and initialization code
for the kernel debugger extensions dll.
Author:
John Ballard
Environment:
User Mode
--*/
#include "precomp.h"
#pragma hdrstop
//
// globals
//
EXT_API_VERSION ApiVersion = { 3, 5, EXT_API_VERSION_NUMBER, 0 };
WINDBG_EXTENSION_APIS ExtensionApis;
USHORT SavedMajorVersion;
USHORT SavedMinorVersion;
BOOLEAN ChkTarget;
INT Item;
HANDLE _hInstance;
HANDLE _hAdditionalReference;
HANDLE _hProcessHeap;
int _Indent = 0;
char IndentBuf[ 80 ]={"\0 "};
DllInit(
HANDLE hModule,
DWORD dwReason,
DWORD dwReserved
)
{
switch (dwReason) {
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
break;
case DLL_PROCESS_ATTACH:
_hInstance = hModule;
_hAdditionalReference = NULL;
break;
}
return TRUE;
}
VOID
WinDbgExtensionDllInit(
PWINDBG_EXTENSION_APIS lpExtensionApis,
USHORT MajorVersion,
USHORT MinorVersion
)
{
ExtensionApis = *lpExtensionApis;
SavedMajorVersion = MajorVersion;
SavedMinorVersion = MinorVersion;
ChkTarget = SavedMajorVersion == 0x0c ? TRUE : FALSE;
return;
}
DECLARE_API( version )
{
#if DBG
PCHAR DebuggerType = "Checked";
#else
PCHAR DebuggerType = "Free";
#endif
dprintf( "%s Extension dll for Build %d debugging %s kernel for Build %d\n",
DebuggerType,
VER_PRODUCTBUILD,
SavedMajorVersion == 0x0c ? "Checked" : "Free",
SavedMinorVersion
);
}
VOID
CheckVersion(
VOID
)
{
return;
#if DBG
if ((SavedMajorVersion != 0x0c) || (SavedMinorVersion != VER_PRODUCTBUILD)) {
dprintf("\r\n*** Extension DLL(%d Checked) does not match target system(%d %s)\r\n\r\n",
VER_PRODUCTBUILD, SavedMinorVersion, (SavedMajorVersion==0x0f) ? "Free" : "Checked" );
}
#else
if ((SavedMajorVersion != 0x0f) || (SavedMinorVersion != VER_PRODUCTBUILD)) {
dprintf("\r\n*** Extension DLL(%d Free) does not match target system(%d %s)\r\n\r\n",
VER_PRODUCTBUILD, SavedMinorVersion, (SavedMajorVersion==0x0f) ? "Free" : "Checked" );
}
#endif
}
LPEXT_API_VERSION
ExtensionApiVersion(
VOID
)
{
return &ApiVersion;
}
//
// Exported functions
//
DECLARE_API( help )
/*++
Routine Description:
Command help for ISN debugger extensions.
Arguments:
None
Return Value:
None
--*/
{
dprintf("tcpip debugger extension commands:\n\n");
dprintf("\ttcb <ptr> - Dump a TCB\n");
dprintf("\ttcbtable - Dump TCB table\n");
dprintf("\ttcbsrch <ptr> - Searchs given tcb in tcbtable\n");
dprintf("\ttcpaostats - Dump AOStats\n");
dprintf("\ttcptwqstats - Dump TWQ Stats\n");
dprintf("\ttcpconn <ptr> [f] - Dump a TCPConn\n");
dprintf("\ttcpconntable [f] - Dump TCPConnTable\n");
dprintf("\ttcpconnstats - Dump TCPConnStats\n");
dprintf("\tirp <ptr> [f] - Dump an IRP\n");
dprintf("\tao <ptr> - Dump an AddressObject\n");
dprintf("\tnte <ptr> - Dump a NetTableEntry\n");
dprintf("\tntelist - Dump NetTableList\n");
dprintf("\tinterface <ptr> - Dump an Interface\n");
dprintf("\tiflist - Dump IFList\n");
dprintf("\trce <ptr> - Dump a RouteCacheEntry\n");
dprintf("\trte <ptr> - Dump a RouteTableEntry\n");
dprintf("\trtes - Dump RouteTable (like route print)\n");
dprintf("\trtetable - Dump whole trie \n");
dprintf("\tate <ptr> - Dump an ARPTableEntry\n");
dprintf("\tai <ptr> - Dump an ARPInterface\n");
dprintf("\tarptable [<ptr>] - Dump ARPTable [starting from address]\n");
dprintf("\tMDLChain <ptr> - Dump the MDL chain\n");
dprintf("\tdumplog - Dump the Log buffer (only on checked build)\n");
dprintf("\ttcpfile <ptr> - Dump the tcp file object\n");
dprintf("\ttcpconnblock <ptr> - Dump the connection block\n");
dprintf("\n");
dprintf( "Compiled on " __DATE__ " at " __TIME__ "\n" );
return;
}
ULONG
GetUlongValue (
PCHAR String
)
{
ULONG Location;
ULONG Value;
ULONG result;
Location = GetExpression( String );
if (!Location) {
dprintf("unable to get %s\n",String);
return 0;
}
if ((!ReadMemory((DWORD)Location,&Value,sizeof(ULONG),&result)) ||
(result < sizeof(ULONG))) {
dprintf("unable to get %s\n",String);
return 0;
}
return Value;
}
VOID
dprintSymbolPtr
(
PVOID Pointer,
PCHAR EndOfLine
)
{
UCHAR SymbolName[ 80 ];
ULONG Displacement;
dprintf("%-10lx", ( ULONG )Pointer );
GetSymbol( Pointer, SymbolName, &Displacement );
if ( Displacement == 0 )
{
dprintf( "(%s)%s", SymbolName, EndOfLine );
}
else
{
dprintf( "(%s + 0x%X)%s", SymbolName, Displacement, EndOfLine );
}
}
VOID
dprint_nchar
(
PCHAR pch,
int cch
)
{
CHAR ch;
int index;
for ( index = 0; index < cch; index ++ )
{
ch = pch[ index ];
dprintf( "%c", ( ch >= 32 ) ? ch : '.' );
}
}
VOID
dprint_hardware_address
(
PUCHAR Address
)
{
dprintf( "%02x-%02x-%02x-%02x-%02x-%02x",
Address[ 0 ],
Address[ 1 ],
Address[ 2 ],
Address[ 3 ],
Address[ 4 ],
Address[ 5 ] );
}
VOID
dprint_IP_address
(
IPAddr Address
)
{
uchar IPAddrBuffer[(sizeof(IPAddr) * 4)];
uint i;
uint IPAddrCharCount;
//
// Convert the IP address into a string.
//
IPAddrCharCount = 0;
for (i = 0; i < sizeof(IPAddr); i++) {
uint CurrentByte;
CurrentByte = Address & 0xff;
if (CurrentByte > 99) {
IPAddrBuffer[IPAddrCharCount++] = (CurrentByte / 100) + '0';
CurrentByte %= 100;
IPAddrBuffer[IPAddrCharCount++] = (CurrentByte / 10) + '0';
CurrentByte %= 10;
} else if (CurrentByte > 9) {
IPAddrBuffer[IPAddrCharCount++] = (CurrentByte / 10) + '0';
CurrentByte %= 10;
}
IPAddrBuffer[IPAddrCharCount++] = CurrentByte + '0';
if (i != (sizeof(IPAddr) - 1))
IPAddrBuffer[IPAddrCharCount++] = '.';
Address >>= 8;
}
IPAddrBuffer[IPAddrCharCount] = '\0';
dprintf( "%s", IPAddrBuffer );
}
BOOL
dprint_enum_name
(
ULONG Value,
PENUM_INFO pEnumInfo
)
{
while ( pEnumInfo->pszDescription != NULL )
{
if ( pEnumInfo->Value == Value )
{
dprintf( "%.40s", pEnumInfo->pszDescription );
return( TRUE );
}
pEnumInfo ++;
}
dprintf( "Unknown enumeration value." );
return( FALSE );
}
BOOL
dprint_flag_names
(
ULONG Value,
PFLAG_INFO pFlagInfo
)
{
BOOL bFoundOne = FALSE;
while ( pFlagInfo->pszDescription != NULL )
{
if ( pFlagInfo->Value & Value )
{
if ( bFoundOne )
{
dprintf( " | " );
}
bFoundOne = TRUE;
dprintf( "%.15s", pFlagInfo->pszDescription );
}
pFlagInfo ++;
}
return( bFoundOne );
}
BOOL
dprint_masked_value
(
ULONG Value,
ULONG Mask
)
{
CHAR Buf[ 9 ];
ULONG nibble;
int index;
for ( index = 0; index < 8; index ++ )
{
nibble = ( Mask & 0xF0000000 );
/*
dprintf( "#%d: nibble == %08X\n"
" Mask == %08X\n"
" Value == %08X\n", index, nibble, Mask, Value );
*/
if ( nibble )
{
Buf[ index ] = "0123456789abcdef"[ (( nibble & Value ) >> 28) & 0xF ];
}
else
{
Buf[ index ] = ' ';
}
Mask <<= 4;
Value <<= 4;
}
Buf[ 8 ] = '\0';
dprintf( "%s", Buf );
return( TRUE );
}
void
dprint_unicode_string( UNICODE_STRING String )
{
WCHAR Buf[256];
ULONG result;
dprintf( "{ " );
dprintf( "Length %x, MaxLength %x ", String.Length, String.MaximumLength );
if ( String.Length ) {
if (!ReadMemory( (ULONG)String.Buffer,
Buf,
sizeof( Buf ),
&result ))
{
dprintf( "ReadMemory(@%lx) failed.",String.Buffer );
} else {
Buf[MAX(255, (String.Length/sizeof(WCHAR)) )] = L'\0';
dprintf( "\"%ws\"", Buf );
}
}
dprintf( " }\n" );
}
void
dprint_ansi_string( PUCHAR String )
{
UCHAR Buf[256] = {0};
ULONG result;
if ( String ) {
if (!ReadMemory( (ULONG)String,
Buf,
sizeof( Buf ) - 1,
&result )) {
dprintf( "ReadMemory(@%lx) failed.", String );
} else {
dprintf( "%s", Buf );
}
}
}
VOID dprint_addr_list( ULONG_PTR FirstAddress, ULONG OffsetToNextPtr )
{
ULONG_PTR Address;
ULONG result;
int index;
Address = FirstAddress;
if ( Address == (ULONG)NULL )
{
dprintf( "%08X (Empty)\n", Address );
return;
}
dprintf( "{ " );
for ( index = 0; Address != (ULONG_PTR)NULL; index ++ )
{
if ( index != 0 )
{
dprintf( ", ");
}
if ( index == 100 )
{
dprintf( "Next list might be corrupted. ");
Address = (ULONG_PTR)NULL;
}
dprintf( "%08X", Address );
if ( !ReadMemory( Address + OffsetToNextPtr,
&Address,
sizeof( Address ),
&result ))
{
dprintf( "ReadMemory() failed." );
Address = (ULONG_PTR)NULL;
}
}
dprintf( " }\n" );
}