Source code of Windows XP (NT5)
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790 lines
17 KiB

#include "inc.h"
CMD_ENTRY g_rgRouteCmdTable[] = {
{TOKEN_ADD, AddRoute},
{TOKEN_DELETE, DeleteRoute},
{TOKEN_PRINT, PrintRoute},
{TOKEN_MATCH, MatchRoute},
{TOKEN_ENABLE, EnableRoute},
};
VOID
HandleRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
LONG lIndex;
if(lNumArgs < 2)
{
DisplayMessage(HMSG_ROUTE_USAGE);
return;
}
lIndex = ParseCommand(g_rgRouteCmdTable,
sizeof(g_rgRouteCmdTable)/sizeof(CMD_ENTRY),
rgpwszArgs[1]);
if(lIndex is -1)
{
DisplayMessage(HMSG_ROUTE_USAGE);
return;
}
g_rgRouteCmdTable[lIndex].pfnHandler(lNumArgs - 1,
&rgpwszArgs[1]);
return;
}
VOID
PrintRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
DWORD dwResult;
PMIB_IPFORWARDTABLE pTable;
ULONG i;
dwResult = AllocateAndGetIpForwardTableFromStack(&pTable,
TRUE,
GetProcessHeap(),
HEAP_NO_SERIALIZE);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_RTTABLE);
if(pwszEntry)
{
DisplayMessage(EMSG_RETRIEVAL_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_RETRIEVAL_ERROR2,
dwResult);
}
return;
}
if(pTable->dwNumEntries is 0)
{
PWCHAR pwszEntryType;
pwszEntryType = MakeString(TOKEN_ROUTE);
if(pwszEntryType)
{
DisplayMessage(EMSG_NO_ENTRIES1,
pwszEntryType);
FreeString(pwszEntryType);
}
else
{
DisplayMessage(EMSG_NO_ENTRIES2);
}
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
return;
}
DisplayMessage(MSG_RTTABLE_HDR);
for(i = 0; i < pTable->dwNumEntries; i++)
{
ADDR_STRING rgwcDest, rgwcMask, rgwcNHop;
NetworkToUnicode(pTable->table[i].dwForwardDest,
rgwcDest);
NetworkToUnicode(pTable->table[i].dwForwardMask,
rgwcMask);
NetworkToUnicode(pTable->table[i].dwForwardNextHop,
rgwcNHop);
wprintf(L"%-15s\t%-15s\t%-15s\t%8d\t%4d\t%4d\n",
rgwcDest,
rgwcMask,
rgwcNHop,
pTable->table[i].dwForwardIfIndex,
pTable->table[i].dwForwardMetric1,
pTable->table[i].dwForwardProto);
}
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
}
VOID
AddRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
DWORD dwResult, dwMask, dwDest, dwNHop, dwMetric, dwIfIndex;
BOOL bValid;
ULONG i;
PMIB_IPADDRTABLE pTable;
MIB_IPFORWARDROW Route;
//
// Parse the rest of the arguments
// The command line at this point should read:
// ADD <dest> MASK <mask> <nhop> [IF <ifIndex>] [METRIC <metric>]
//
if(lNumArgs < 5)
{
DisplayMessage(HMSG_ROUTE_ADD_USAGE);
return;
}
if(!MatchToken(rgpwszArgs[2],
TOKEN_MASK))
{
DisplayMessage(HMSG_ROUTE_ADD_USAGE);
return;
}
dwDest = UnicodeToNetwork(rgpwszArgs[1]);
dwMask = UnicodeToNetwork(rgpwszArgs[3]);
dwNHop = UnicodeToNetwork(rgpwszArgs[4]);
do
{
DWORD dwTestMask, i, dwNMask;
dwTestMask = 0;
if(dwMask is 0)
{
bValid = TRUE;
break;
}
bValid = FALSE;
for(i = 0; bValid or (i < 32); i++)
{
dwTestMask = 0x80000000 | (dwTestMask >> 1);
dwNMask = RtlUlongByteSwap(dwTestMask);
if(dwMask is dwNMask)
{
bValid = TRUE;
break;
}
}
}while(FALSE);
if(dwDest is INADDR_NONE)
{
DisplayMessage(EMSG_RT_BAD_DEST);
return;
}
if(dwNHop is INADDR_NONE)
{
DisplayMessage(EMSG_RT_BAD_NHOP);
return;
}
if(bValid isnot TRUE)
{
DisplayMessage(EMSG_RT_BAD_MASK);
return;
}
if((dwDest & dwMask) isnot dwDest)
{
DisplayMessage(EMSG_RT_BAD_DEST);
return;
}
//
// See if we have an index or metric
//
dwIfIndex = (DWORD)-1;
dwMetric = 1;
if(lNumArgs > 5)
{
if((lNumArgs isnot 7) and
(lNumArgs isnot 9))
{
DisplayMessage(HMSG_ROUTE_ADD_USAGE);
return;
}
if(!MatchToken(rgpwszArgs[5],
TOKEN_INTERFACE))
{
DisplayMessage(HMSG_ROUTE_ADD_USAGE);
return;
}
dwIfIndex = wcstoul(rgpwszArgs[6],
NULL,
10);
if(lNumArgs is 9)
{
if(!MatchToken(rgpwszArgs[7],
TOKEN_METRIC))
{
DisplayMessage(HMSG_ROUTE_ADD_USAGE);
return;
}
dwMetric = wcstoul(rgpwszArgs[8],
NULL,
10);
}
if((dwIfIndex && dwMetric) is 0)
{
DisplayMessage(EMSG_RT_ZERO_IF_METRIC);
return;
}
}
//
// Get the address table
//
dwResult = AllocateAndGetIpAddrTableFromStack(&pTable,
FALSE,
GetProcessHeap(),
HEAP_NO_SERIALIZE);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_ADDRTABLE);
if(pwszEntry)
{
DisplayMessage(EMSG_RETRIEVAL_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_RETRIEVAL_ERROR2,
dwResult);
}
return;
}
bValid = FALSE;
for(i = 0; i < pTable->dwNumEntries; i++)
{
DWORD dwNet;
if((pTable->table[i].dwAddr is 0) or
(pTable->table[i].dwMask is 0))
{
continue;
}
if(dwIfIndex isnot (DWORD)-1)
{
if(pTable->table[i].dwIndex is dwIfIndex)
{
if(pTable->table[i].dwMask is 0xFFFFFFFF)
{
//
// cant do a next hop check
//
bValid = TRUE;
break;
}
dwNet = pTable->table[i].dwAddr & pTable->table[i].dwMask;
if((dwNHop & pTable->table[i].dwMask) is dwNet)
{
bValid = TRUE;
break;
}
}
}
else
{
//
// Dont have an interface index
// See if we can find an network on which the next hop lies
//
dwNet = pTable->table[i].dwAddr & pTable->table[i].dwMask;
if((dwNHop & pTable->table[i].dwMask) is dwNet)
{
bValid = TRUE;
dwIfIndex = pTable->table[i].dwIndex;
break;
}
}
}
if(!bValid)
{
DisplayMessage(EMSG_RT_BAD_IF_NHOP);
return;
}
ZeroMemory(&Route,
sizeof(MIB_IPFORWARDROW));
Route.dwForwardDest = dwDest;
Route.dwForwardMask = dwMask;
Route.dwForwardNextHop = dwNHop;
Route.dwForwardIfIndex = dwIfIndex;
Route.dwForwardMetric1 = dwMetric;
Route.dwForwardProto = MIB_IPPROTO_LOCAL;
if((dwDest is pTable->table[i].dwAddr) or
(dwDest is dwNHop))
{
Route.dwForwardType = MIB_IPROUTE_TYPE_DIRECT;
}
else
{
Route.dwForwardType = MIB_IPROUTE_TYPE_INDIRECT;
}
dwResult = SetIpForwardEntryToStack(&Route);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_RTENTRY);
if(pwszEntry)
{
DisplayMessage(EMSG_SET_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_SET_ERROR2,
dwResult);
}
}
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
}
VOID
DeleteRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
DWORD dwResult, dwMask, dwDest, dwNHop, dwIfIndex;
BOOL bAny;
ULONG i;
PMIB_IPFORWARDTABLE pTable;
PMIB_IPFORWARDROW pRoute;
//
// Parse the rest of the arguments
// The command line at this point should read:
// DELETE <dest> [MASK <mask>] [<nhop>] [IF <ifIndex>]
//
if(lNumArgs < 2)
{
DisplayMessage(HMSG_ROUTE_DELETE_USAGE);
return;
}
dwDest = UnicodeToNetwork(rgpwszArgs[1]);
if((lNumArgs > 2) and
(lNumArgs isnot 7))
{
DisplayMessage(HMSG_ROUTE_DELETE_USAGE);
return;
}
bAny = TRUE;
if(lNumArgs is 7)
{
if(!MatchToken(rgpwszArgs[2],
TOKEN_MASK))
{
DisplayMessage(HMSG_ROUTE_DELETE_USAGE);
return;
}
if(!MatchToken(rgpwszArgs[5],
TOKEN_INTERFACE))
{
DisplayMessage(HMSG_ROUTE_DELETE_USAGE);
return;
}
dwMask = UnicodeToNetwork(rgpwszArgs[3]);
dwNHop = UnicodeToNetwork(rgpwszArgs[4]);
dwIfIndex = wcstoul(rgpwszArgs[6],
NULL,
10);
if((dwNHop is INADDR_NONE) or
(dwIfIndex is 0))
{
DisplayMessage(HMSG_ROUTE_DELETE_USAGE);
return;
}
bAny = FALSE;
}
//
// Get the route table and see if such a route exists
//
dwResult = AllocateAndGetIpForwardTableFromStack(&pTable,
TRUE,
GetProcessHeap(),
HEAP_NO_SERIALIZE);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_RTTABLE);
if(pwszEntry)
{
DisplayMessage(EMSG_RETRIEVAL_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_RETRIEVAL_ERROR2,
dwResult);
}
return;
}
if(pTable->dwNumEntries is 0)
{
PWCHAR pwszEntryType;
pwszEntryType = MakeString(TOKEN_ROUTE);
if(pwszEntryType)
{
DisplayMessage(EMSG_NO_ENTRIES1,
pwszEntryType);
FreeString(pwszEntryType);
}
else
{
DisplayMessage(EMSG_NO_ENTRIES2);
}
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
return;
}
pRoute = NULL;
for(i = 0; i < pTable->dwNumEntries; i++)
{
if(pTable->table[i].dwForwardDest is dwDest)
{
if(bAny)
{
if((i is (pTable->dwNumEntries - 1)) or
(pTable->table[i + 1].dwForwardDest isnot dwDest))
{
//
// Unique entry
//
pRoute = &(pTable->table[i]);
}
break;
}
else
{
//
// Do an exact match
//
if((pTable->table[i].dwForwardMask is dwMask) and
(pTable->table[i].dwForwardNextHop is dwNHop) and
(pTable->table[i].dwForwardIfIndex is dwIfIndex))
{
pRoute = &(pTable->table[i]);
break;
}
}
}
}
if(pRoute is NULL)
{
DisplayMessage(EMSG_UNIQUE_ROUTE_ABSENT);
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
return;
}
pRoute->dwForwardType = MIB_IPROUTE_TYPE_INVALID;
dwResult = SetIpForwardEntryToStack(pRoute);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_RTENTRY);
if(pwszEntry)
{
DisplayMessage(EMSG_SET_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_SET_ERROR2,
dwResult);
}
}
HeapFree(GetProcessHeap(),
HEAP_NO_SERIALIZE,
pTable);
}
VOID
MatchRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
DWORD dwResult, dwDest, dwSrc;
ADDR_STRING rgwcDest, rgwcMask, rgwcNHop;
MIB_IPFORWARDROW Route;
//
// Command line should be MATCH <dest> [SRC <srcAddr>]
//
if(lNumArgs < 2)
{
DisplayMessage(HMSG_ROUTE_MATCH_USAGE);
return;
}
dwSrc = 0;
if(lNumArgs > 2)
{
if(lNumArgs isnot 4)
{
DisplayMessage(HMSG_ROUTE_MATCH_USAGE);
return;
}
if(!MatchToken(rgpwszArgs[2],
TOKEN_SRC))
{
DisplayMessage(HMSG_ROUTE_MATCH_USAGE);
return;
}
dwSrc = UnicodeToNetwork(rgpwszArgs[3]);
}
dwDest = UnicodeToNetwork(rgpwszArgs[1]);
dwResult = GetBestRouteFromStack(dwDest,
dwSrc,
&Route);
if(dwResult isnot NO_ERROR)
{
PWCHAR pwszEntry;
pwszEntry = MakeString(STR_RTENTRY);
if(pwszEntry)
{
DisplayMessage(EMSG_RETRIEVAL_ERROR1,
dwResult,
pwszEntry);
FreeString(pwszEntry);
}
else
{
DisplayMessage(EMSG_RETRIEVAL_ERROR2,
dwResult);
}
return;
}
NetworkToUnicode(Route.dwForwardDest,
rgwcDest);
NetworkToUnicode(Route.dwForwardMask,
rgwcMask);
NetworkToUnicode(Route.dwForwardNextHop,
rgwcNHop);
DisplayMessage(MSG_RTTABLE_HDR);
wprintf(L"%-15s\t%-15s\t%-15s\t%-4d\t%d\t%4d\n",
rgwcDest,
rgwcMask,
rgwcNHop,
Route.dwForwardIfIndex,
Route.dwForwardMetric1,
Route.dwForwardProto);
}
VOID
EnableRoute(
LONG lNumArgs,
PWCHAR rgpwszArgs[]
)
{
const WCHAR Empty[] = L"";
UNICODE_STRING BindList;
HKEY Key;
UNICODE_STRING LowerComponent;
IP_PNP_RECONFIG_REQUEST Request;
UINT status;
const WCHAR Tcpip[] = L"Tcpip";
const TCHAR TcpipParameters[] =
TEXT("System\\CurrentControlSet\\Services\\Tcpip\\Parameters");
UNICODE_STRING UpperComponent;
RtlInitUnicodeString(&BindList, Empty);
RtlInitUnicodeString(&LowerComponent, Empty);
RtlInitUnicodeString(&UpperComponent, Tcpip);
Request.version = IP_PNP_RECONFIG_VERSION;
Request.NextEntryOffset = 0;
Request.arpConfigOffset = 0;
Request.IPEnableRouter = TRUE;
Request.Flags = IP_PNP_FLAG_IP_ENABLE_ROUTER;
status = NdisHandlePnPEvent(NDIS,
RECONFIGURE,
&LowerComponent,
&UpperComponent,
&BindList,
&Request,
sizeof(Request)
);
if (!status)
{
DisplayMessage(EMSG_ROUTE_ENABLE, GetLastError());
}
if (RegOpenKey(HKEY_LOCAL_MACHINE, TcpipParameters, &Key) == NO_ERROR)
{
status = TRUE;
RegSetValueEx(Key,
TEXT("IPEnableRouter"),
0,
REG_DWORD,
(PBYTE)&status,
sizeof(status)
);
RegCloseKey(Key);
}
}