Source code of Windows XP (NT5)
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//+-------------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (C) Microsoft Corporation, 1997 - 1999
//
// File: rpccfg.cxx
//
//--------------------------------------------------------------------------
#include<nt.h>
#include<ntrtl.h>
#include<nturtl.h>
#include<stdio.h>
#include<string.h>
#include<memory.h>
#include<malloc.h>
#include<stdlib.h>
#include <windows.h>
#include <winsock2.h>
extern "C" {
#include <iphlpapi.h>
};
void
ListInterfaces()
{
PMIB_IFTABLE pMib;
DWORD Size = 20*sizeof(MIB_IFROW)+sizeof(DWORD);
unsigned int i;
DWORD Status;
for (i = 0; i < 2; i++)
{
pMib = (PMIB_IFTABLE) malloc(Size);
if (pMib == 0)
{
return;
}
memset(pMib, 0, Size);
Status = GetIfTable(pMib, &Size, 0);
if (Status == 0)
{
break;
}
free(pMib);
}
if (Status != 0)
{
return;
}
for (i = 0; i < pMib->dwNumEntries; i++)
{
printf("IF[%d]: Ethernet: %s\n", ((pMib->table[i].dwIndex) & 0x00FFFFFF),
(char *) pMib->table[i].bDescr);
}
}
#define RPC_NIC_INDEXES "System\\CurrentControlSet\\Services\\Rpc\\Linkage"
#define RPC_PORT_SETTINGS "Software\\Microsoft\\Rpc\\Internet"
DWORD
NextIndex(
char **Ptr
)
{
char *Index = *Ptr ;
if (*Index == 0)
{
return -1;
}
while (**Ptr) (*Ptr)++ ;
(*Ptr)++ ;
return (DWORD) atoi(Index) ;
}
BOOL
GetCardIndexTable (
DWORD **IndexTable,
DWORD *NumIndexes
)
{
HKEY hKey;
DWORD Size ;
DWORD Type;
char *Buffer;
DWORD Status;
Status =
RegOpenKeyExA(
HKEY_LOCAL_MACHINE,
RPC_NIC_INDEXES,
0,
KEY_READ,
&hKey);
if (Status == ERROR_FILE_NOT_FOUND)
{
*IndexTable = NULL;
return TRUE;
}
if (Status != ERROR_SUCCESS)
{
return FALSE;
}
Size = 512 ;
Buffer = (char *) malloc(Size) ;
if (Buffer == 0)
{
return FALSE;
}
while(TRUE)
{
Status =
RegQueryValueExA(
hKey,
"Bind",
0,
&Type,
(unsigned char *) Buffer,
&Size);
if (Status == ERROR_SUCCESS)
{
break;
}
if (Status == ERROR_MORE_DATA)
{
free(Buffer) ;
Buffer = (char *) malloc(Size) ;
if (Buffer == 0)
{
RegCloseKey(hKey);
return FALSE ;
}
continue;
}
if (Status == ERROR_FILE_NOT_FOUND)
{
free(Buffer) ;
*IndexTable = NULL;
RegCloseKey(hKey);
return TRUE;
}
free(Buffer) ;
RegCloseKey(hKey);
return FALSE;
}
if (*Buffer == 0)
{
RegCloseKey(hKey);
return FALSE;
}
//
// we know this much will be enough
//
*IndexTable = (DWORD *) malloc(Size * sizeof(DWORD));
if (*IndexTable == 0)
{
RegCloseKey(hKey);
return FALSE;
}
*NumIndexes = 0;
int Index;
while ((Index = NextIndex(&Buffer)) != -1)
{
(*IndexTable)[*NumIndexes] = Index;
(*NumIndexes)++;
}
RegCloseKey(hKey);
return TRUE;
}
void ResetState (
)
{
DWORD Status;
HKEY hKey;
//
// Reset interface state to default
//
Status =
RegOpenKeyExA(
HKEY_LOCAL_MACHINE,
"System\\CurrentControlSet\\Services\\Rpc",
0,
KEY_ALL_ACCESS,
&hKey);
if (Status == ERROR_FILE_NOT_FOUND)
{
printf("RPCCFG: State reset to default\n");
return;
}
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
Status = RegDeleteKeyA(hKey, "Linkage");
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
RegCloseKey(hKey);
return;
}
RegCloseKey(hKey);
//
// Reset Port state to default
//
Status =
RegOpenKeyExA(
HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Rpc",
0,
KEY_ALL_ACCESS,
&hKey);
if (Status == ERROR_FILE_NOT_FOUND)
{
printf("RPCCFG: State reset to default\n");
return;
}
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
Status = RegDeleteKeyA(hKey, "Internet");
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
RegCloseKey(hKey);
return;
}
RegCloseKey(hKey);
printf("RPCCFG: State reset to default\n");
}
void
ListCurrentInterfaces(
)
{
DWORD *IndexTable;
DWORD NumIndexes;
DWORD Status;
unsigned int i;
if (GetCardIndexTable(&IndexTable, &NumIndexes) == FALSE)
{
printf("RPCCFG: Could not list the Interfaces\n");
ResetState();
return;
}
if (IndexTable == 0)
{
printf("RPCCFG: Listening on all interfaces (default configuration)\n");
return;
}
printf("RPCCFG: Listening on the following interfaces\n");
for (i = 0; i < NumIndexes; i++)
{
MIB_IFROW IfEntry;
memset(&IfEntry, 0, sizeof(MIB_IFROW));
//
// Set the index in the row
//
IfEntry.dwIndex = IndexTable[i];
Status = GetIfEntry(&IfEntry);
if (Status != 0)
{
printf("RPCCFG: Could not list the Interfaces\n");
break;
}
printf("IF[%d]: Ethernet: %s\n", IndexTable[i], (char *) IfEntry.bDescr);
}
}
void
ListenOnInterfaces (
USHORT *IfIndices,
USHORT Count
)
{
int i;
HKEY hKey;
DWORD Status;
DWORD disposition;
Status =
RegCreateKeyExA(
HKEY_LOCAL_MACHINE,
RPC_NIC_INDEXES,
0,
"",
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
&disposition);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
int cbIndices = 0;
char *lpIndices = (char *) malloc(17*Count+1);
if (lpIndices == 0)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
char *current = lpIndices;
for (i = 0; i < Count; i++)
{
sprintf(current, "%d", IfIndices[i]);
int length = strlen(current)+1;
current += length;
cbIndices += length;
}
*current = 0;
cbIndices++;
Status = RegSetValueExA(hKey,
"Bind",
0,
REG_MULTI_SZ,
(unsigned char *) lpIndices,
cbIndices);
free(lpIndices);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
}
char *
NextPortRange(
char **Ptr
)
{
char *Port = *Ptr ;
if (*Port == 0)
{
return 0;
}
while (**Ptr) (*Ptr)++ ;
(*Ptr)++ ;
return Port ;
}
void
ListCurrentPortSettings (
)
{
HKEY hKey;
DWORD Size ;
DWORD Type;
char *Buffer;
DWORD Status;
Status =
RegOpenKeyExA(
HKEY_LOCAL_MACHINE,
RPC_PORT_SETTINGS,
0,
KEY_READ,
&hKey);
if (Status == ERROR_FILE_NOT_FOUND)
{
printf("RPCCFG: Using default port settings\n", Status);
return;
}
if (Status != ERROR_SUCCESS)
{
return;
}
Size = 2048;
Buffer = (char *) malloc(Size) ;
if (Buffer == 0)
{
RegCloseKey(hKey);
return;
}
while(TRUE)
{
Status =
RegQueryValueExA(
hKey,
"Ports",
0,
&Type,
(unsigned char *) Buffer,
&Size);
if (Status == ERROR_SUCCESS)
{
break;
}
if (Status == ERROR_MORE_DATA)
{
free(Buffer) ;
Buffer = (char *) malloc(Size) ;
if (Buffer == 0)
{
RegCloseKey(hKey);
printf("RPCCFG: Could not perform operation, out of memory\n");
return;
}
continue;
}
if (Status == ERROR_FILE_NOT_FOUND)
{
free(Buffer) ;
printf("RPCCFG: Using default port settings\n", Status);
RegCloseKey(hKey);
return;
}
printf("RPCCFG: Could not perform operation\n");
free(Buffer) ;
RegCloseKey(hKey);
return;
}
if (*Buffer == 0)
{
printf("RPCCFG: Bad settings\n");
RegCloseKey(hKey);
ResetState();
return;
}
char *PortRange;
char Flags[32];
Size = 32;
Status =
RegQueryValueExA(
hKey,
"PortsInternetAvailable",
0,
&Type,
(unsigned char *) Flags,
&Size);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
RegCloseKey(hKey);
return;
}
printf("The following ports/port ranges will be used for ");
if (Flags[0] == 'Y')
{
printf("Internet ports\n");
}
else
{
printf("Intranet ports\n");
}
while ((PortRange = NextPortRange(&Buffer)) != 0)
{
printf("\t%s\n", PortRange);
}
Size = 32;
Status =
RegQueryValueExA(
hKey,
"UseInternetPorts",
0,
&Type,
(unsigned char *) Flags,
&Size);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
RegCloseKey(hKey);
return;
}
printf("\nDefault port allocation is from ");
if (Flags[0] == 'Y')
{
printf("Internet ports\n");
}
else
{
printf("Intranet ports\n");
}
RegCloseKey(hKey);
}
void
SetPortRange(
char **PortRangeTable,
int NumEntries,
char *InternetAvailable
)
{
int i;
DWORD Status;
DWORD disposition;
HKEY hKey;
Status =
RegCreateKeyExA(
HKEY_LOCAL_MACHINE,
RPC_PORT_SETTINGS,
0,
"",
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
&disposition);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
int cbPorts = 0;
char *lpPorts = (char *) malloc(257*NumEntries+1);
if (lpPorts == 0)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
char *current = lpPorts;
for (i = 0; i < NumEntries; i++)
{
strcpy(current, PortRangeTable[i]);
int length = strlen(current)+1;
current += length;
cbPorts += length;
}
*current = 0;
cbPorts++;
Status = RegSetValueExA(hKey,
"Ports",
0,
REG_MULTI_SZ,
(unsigned char *) lpPorts,
cbPorts);
free(lpPorts);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
Status = RegSetValueExA(hKey,
"PortsInternetAvailable",
0,
REG_SZ,
(unsigned char *) InternetAvailable,
strlen(InternetAvailable)+1);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
}
void
SetDefaultPortSetting (
char *PortSetting
)
{
int i;
HKEY hKey;
DWORD Status;
DWORD disposition;
Status =
RegCreateKeyExA(
HKEY_LOCAL_MACHINE,
RPC_PORT_SETTINGS,
0,
"",
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
&disposition);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
if (PortSetting[0] == '0')
{
PortSetting = "Y";
}
else
{
PortSetting = "N";
}
Status = RegSetValueExA(hKey,
"UseInternetPorts",
0,
REG_SZ,
(unsigned char *) PortSetting,
strlen(PortSetting)+1);
if (Status != ERROR_SUCCESS)
{
printf("RPCCFG: Could not perform operation (%d)\n", Status);
return;
}
RegCloseKey(hKey);
}
void
Help (
)
{
printf("usage: RPCCFG [-l] [-a ifindex1 [ifindex2 ...]] [-r] [-q] [-d 0|1] \n");
printf(" [-pi port|port-range ...] [-pe port|port-range ...] \n");
printf("\t-?: This help message\n");
printf("\t-l: List all the interfaces\n");
printf("\t-q: List the interface indices on which we are currently listening\n");
printf("\t and our port usage settings\n");
printf("\t-r: Reset the interface and port settings to default\n");
printf("\t-a: Listen on the listed interface indices (eg: -a 1 3 5)\n");
printf("\t this will cause RPC servers to listen on the listed interfaces\n");
printf("\t by default. The interfaces listed are typically inside the firewall\n");
printf("\t-pi:Specify the intranet available ports, the ports may be single\n");
printf("\t values or ranges (eg: -pi 555 600-700 900), this option may not be\n");
printf("\t used with the -pe option\n");
printf("\t-pe:Specify the internet available ports, the ports may be single\n");
printf("\t values or ranges this option may not be used with the -pi option\n");
printf("\t-d: Specify the default port usage\n");
printf("\t 0: Use internet available ports by default\n");
printf("\t 1: Use intranet available ports by default\n");
}
void
__cdecl main (int argc, char *argv[])
{
int argscan;
USHORT IfIndices[512];
char *PortRangeTable[512];
int i;
BOOL fPortChanged = 0;
BOOL fInterfaceChanged = 0;
if (argc == 1)
{
Help();
}
for (argscan = 1; argscan < argc;argscan++)
{
if (strcmp(argv[argscan], "-l") == 0)
{
ListInterfaces();
}
else if (strcmp(argv[argscan], "-?") == 0)
{
Help();
}
else if (strcmp(argv[argscan], "-r") == 0)
{
fPortChanged = 1;
fInterfaceChanged = 1;
ResetState();
}
else if (strcmp(argv[argscan], "-q") == 0)
{
ListCurrentInterfaces();
printf("\n");
ListCurrentPortSettings();
}
else if (strcmp(argv[argscan], "-a") == 0)
{
int count = 0;
for (i = 0; i < 512; i++)
{
argscan++;
if (argscan == argc)
{
break;
}
if (argv[argscan][0] == '-')
{
argscan--;
break;
}
count++;
IfIndices[i] = (USHORT)atoi(argv[argscan]);
if (IfIndices[i] == 0)
{
printf("RPCCFG: Bad interface index\n");
return;
}
}
if (i == 512)
{
printf("RPCCFG: Too many interfaces\n");
return;
}
if (count)
{
ListenOnInterfaces(IfIndices, (USHORT)count);
fInterfaceChanged = 1;
}
}
else if (strncmp(argv[argscan], "-p", 2) == 0)
{
int count = 0;
char *option = argv[argscan];
for (i = 0; i < 512; i++)
{
argscan++;
if (argscan == argc)
{
break;
}
if (argv[argscan][0] == '-')
{
argscan--;
break;
}
count++;
PortRangeTable[i] = argv[argscan];
}
if (i == 512)
{
printf("RPCCFG: Too many ports\n");
return;
}
if (strcmp(option, "-pi") == 0)
{
SetPortRange(PortRangeTable, count, "N");
}
else
{
SetPortRange(PortRangeTable, count, "Y");
}
fPortChanged = 1;
}
else if (strcmp(argv[argscan], "-d") == 0)
{
argscan++;
if (argscan == argc)
{
break;
}
SetDefaultPortSetting(argv[argscan]);
fPortChanged = 1;
}
}
if (fInterfaceChanged)
{
ListCurrentInterfaces();
printf("\n");
}
if (fPortChanged)
{
ListCurrentPortSettings();
}
}