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- Fix buffer overrun in GetNetworkParams. 

- Implement GetBest(Route,Interface).
- Implement some AllocateAndGet*FromStack functions.
oldstable
Juan Lang 2003-09-08 19:00:25 +00:00 committed by Alexandre Julliard
parent cd0b789770
commit 1155531cb3
3 changed files with 405 additions and 28 deletions
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2
dlls/iphlpapi/Makefile.in
View File

@ -3,7 +3,7 @@ TOPOBJDIR = ../..
SRCDIR = @srcdir@
VPATH = @srcdir@
MODULE = iphlpapi.dll
IMPORTS = kernel32
IMPORTS = advapi32 kernel32
LDDLLFLAGS = @LDDLLFLAGS@
SYMBOLFILE = $(MODULE).tmp.o

12
dlls/iphlpapi/iphlpapi.spec
View File

@ -1,11 +1,11 @@
@ stdcall AddIPAddress( long long long ptr ptr )
@ stub AllocateAndGetArpEntTableFromStack
@ stub AllocateAndGetIfTableFromStack
@ stub AllocateAndGetIpAddrTableFromStack
@ stub AllocateAndGetIpForwardTableFromStack
@ stub AllocateAndGetIpNetTableFromStack
@ stub AllocateAndGetTcpTableFromStack
@ stub AllocateAndGetUdpTableFromStack
@ stdcall AllocateAndGetIfTableFromStack( ptr long long long )
@ stdcall AllocateAndGetIpAddrTableFromStack( ptr long long long )
@ stdcall AllocateAndGetIpForwardTableFromStack( ptr long long long )
@ stdcall AllocateAndGetIpNetTableFromStack( ptr long long long )
@ stdcall AllocateAndGetTcpTableFromStack( ptr long long long )
@ stdcall AllocateAndGetUdpTableFromStack( ptr long long long )
@ stdcall CreateIpForwardEntry( ptr )
@ stdcall CreateIpNetEntry( ptr )
@ stdcall CreateProxyArpEntry( long long long )

419
dlls/iphlpapi/iphlpapi_main.c
View File

@ -35,6 +35,7 @@
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "iphlpapi.h"
#include "ifenum.h"
#include "ipstats.h"
@ -68,6 +69,220 @@ DWORD WINAPI AddIPAddress(IPAddr Address, IPMask IpMask, DWORD IfIndex, PULONG N
}
/******************************************************************
* AllocateAndGetIfTableFromStack (IPHLPAPI.@)
*
*
* PARAMS
*
* ppIfTable [Out] -- pointer into which the MIB_IFTABLE is
* allocated and returned.
* bOrder [In] -- passed to GetIfTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS -- ERROR_INVALID_PARAMETER if ppIfTable is NULL, whatever
* GetIfTable returns otherwise
*
*/
DWORD WINAPI AllocateAndGetIfTableFromStack(PMIB_IFTABLE *ppIfTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppIfTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppIfTable = (PMIB_IFTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* AllocateAndGetIpAddrTableFromStack (IPHLPAPI.@)
*
*
* PARAMS
*
* ppIpAddrTable [Out]
* bOrder [In] -- passed to GetIpAddrTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS
*
* DWORD
*
*/
DWORD WINAPI AllocateAndGetIpAddrTableFromStack(PMIB_IPADDRTABLE *ppIpAddrTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppIpAddrTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetIpAddrTable(*ppIpAddrTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppIpAddrTable = (PMIB_IPADDRTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetIpAddrTable(*ppIpAddrTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* AllocateAndGetIpForwardTableFromStack (IPHLPAPI.@)
*
*
* ppIpForwardTable [Out] -- pointer into which the MIB_IPFORWARDTABLE is
* allocated and returned.
* bOrder [In] -- passed to GetIfTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS -- ERROR_INVALID_PARAMETER if ppIfTable is NULL, whatever
* GetIpForwardTable returns otherwise
*
*/
DWORD WINAPI AllocateAndGetIpForwardTableFromStack(PMIB_IPFORWARDTABLE *
ppIpForwardTable, BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppIpForwardTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetIpForwardTable(*ppIpForwardTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppIpForwardTable = (PMIB_IPFORWARDTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetIpForwardTable(*ppIpForwardTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* AllocateAndGetIpNetTableFromStack (IPHLPAPI.@)
*
*
* PARAMS
*
* ppIpNetTable [Out]
* bOrder [In] -- passed to GetIpNetTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS
*
* DWORD
*
*/
DWORD WINAPI AllocateAndGetIpNetTableFromStack(PMIB_IPNETTABLE *ppIpNetTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppIpNetTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetIpNetTable(*ppIpNetTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppIpNetTable = (PMIB_IPNETTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetIpNetTable(*ppIpNetTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* AllocateAndGetTcpTableFromStack (IPHLPAPI.@)
*
*
* PARAMS
*
* ppTcpTable [Out]
* bOrder [In] -- passed to GetTcpTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS
*
* DWORD
*
*/
DWORD WINAPI AllocateAndGetTcpTableFromStack(PMIB_TCPTABLE *ppTcpTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppTcpTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetTcpTable(*ppTcpTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppTcpTable = (PMIB_TCPTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetTcpTable(*ppTcpTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* AllocateAndGetUdpTableFromStack (IPHLPAPI.@)
*
*
* PARAMS
*
* ppUdpTable [Out]
* bOrder [In] -- passed to GetUdpTable to order the table
* heap [In] -- heap from which the table is allocated
* flags [In] -- flags to HeapAlloc
*
* RETURNS
*
* DWORD
*
*/
DWORD WINAPI AllocateAndGetUdpTableFromStack(PMIB_UDPTABLE *ppUdpTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
if (!ppUdpTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetUdpTable(*ppUdpTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppUdpTable = (PMIB_UDPTABLE)HeapAlloc(heap, flags, dwSize);
ret = GetUdpTable(*ppUdpTable, &dwSize, bOrder);
}
}
return ret;
}
/******************************************************************
* CreateIpForwardEntry (IPHLPAPI.@)
*
@ -390,8 +605,18 @@ DWORD WINAPI GetAdaptersInfo(PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen)
*/
DWORD WINAPI GetBestInterface(IPAddr dwDestAddr, PDWORD pdwBestIfIndex)
{
FIXME(":stub\n");
return (DWORD) 0;
DWORD ret;
if (!pdwBestIfIndex)
ret = ERROR_INVALID_PARAMETER;
else {
MIB_IPFORWARDROW ipRow;
ret = GetBestRoute(dwDestAddr, 0, &ipRow);
if (ret == ERROR_SUCCESS)
*pdwBestIfIndex = ipRow.dwForwardIfIndex;
}
return ret;
}
@ -412,8 +637,37 @@ DWORD WINAPI GetBestInterface(IPAddr dwDestAddr, PDWORD pdwBestIfIndex)
*/
DWORD WINAPI GetBestRoute(DWORD dwDestAddr, DWORD dwSourceAddr, PMIB_IPFORWARDROW pBestRoute)
{
FIXME(":stub\n");
return (DWORD) 0;
PMIB_IPFORWARDTABLE table;
DWORD ret;
if (!pBestRoute)
return ERROR_INVALID_PARAMETER;
AllocateAndGetIpForwardTableFromStack(&table, FALSE, GetProcessHeap(), 0);
if (table) {
DWORD ndx, matchedBits, matchedNdx = 0;
for (ndx = 0, matchedBits = 0; ndx < table->dwNumEntries; ndx++) {
if ((dwDestAddr & table->table[ndx].dwForwardMask) ==
(table->table[ndx].dwForwardDest & table->table[ndx].dwForwardMask)) {
DWORD numShifts, mask;
for (numShifts = 0, mask = table->table[ndx].dwForwardMask;
mask && !(mask & 1); mask >>= 1, numShifts++)
;
if (numShifts > matchedBits) {
matchedBits = numShifts;
matchedNdx = ndx;
}
}
}
memcpy(pBestRoute, &table->table[matchedNdx], sizeof(MIB_IPFORWARDROW));
HeapFree(GetProcessHeap(), 0, table);
ret = ERROR_SUCCESS;
}
else
ret = ERROR_OUTOFMEMORY;
return ret;
}
@ -433,7 +687,7 @@ DWORD WINAPI GetBestRoute(DWORD dwDestAddr, DWORD dwSourceAddr, PMIB_IPFORWARDRO
DWORD WINAPI GetFriendlyIfIndex(DWORD IfIndex)
{
/* windows doesn't validate these, either, just makes sure the top byte is
cleared. I assume my ipshared module never gives an index with the top
cleared. I assume my ifenum module never gives an index with the top
byte set. */
return IfIndex;
}
@ -491,6 +745,18 @@ DWORD WINAPI GetIfEntry(PMIB_IFROW pIfRow)
}
static int IfTableSorter(const void *a, const void *b)
{
int ret;
if (a && b)
ret = ((PMIB_IFROW)a)->dwIndex - ((PMIB_IFROW)b)->dwIndex;
else
ret = 0;
return ret;
}
/******************************************************************
* GetIfTable (IPHLPAPI.@)
*
@ -533,14 +799,15 @@ DWORD WINAPI GetIfTable(PMIB_IFTABLE pIfTable, PULONG pdwSize, BOOL bOrder)
else {
DWORD ndx;
if (bOrder)
FIXME(":order not implemented");
pIfTable->dwNumEntries = 0;
for (ndx = 0; ndx < table->numIndexes; ndx++) {
pIfTable->table[ndx].dwIndex = table->indexes[ndx];
GetIfEntry(&pIfTable->table[ndx]);
pIfTable->dwNumEntries++;
}
if (bOrder)
qsort(pIfTable->table, pIfTable->dwNumEntries, sizeof(MIB_IFROW),
IfTableSorter);
ret = NO_ERROR;
}
free(table);
@ -622,6 +889,18 @@ DWORD WINAPI GetInterfaceInfo(PIP_INTERFACE_INFO pIfTable, PULONG dwOutBufLen)
}
static int IpAddrTableSorter(const void *a, const void *b)
{
int ret;
if (a && b)
ret = ((PMIB_IPADDRROW)a)->dwAddr - ((PMIB_IPADDRROW)b)->dwAddr;
else
ret = 0;
return ret;
}
/******************************************************************
* GetIpAddrTable (IPHLPAPI.@)
*
@ -665,8 +944,6 @@ DWORD WINAPI GetIpAddrTable(PMIB_IPADDRTABLE pIpAddrTable, PULONG pdwSize, BOOL
else {
DWORD ndx;
if (bOrder)
FIXME(":order not implemented");
pIpAddrTable->dwNumEntries = 0;
for (ndx = 0; ndx < table->numIndexes; ndx++) {
pIpAddrTable->table[ndx].dwIndex = table->indexes[ndx];
@ -682,6 +959,9 @@ DWORD WINAPI GetIpAddrTable(PMIB_IPADDRTABLE pIpAddrTable, PULONG pdwSize, BOOL
pIpAddrTable->table[ndx].wType = 0; /* aka unused2 */
pIpAddrTable->dwNumEntries++;
}
if (bOrder)
qsort(pIpAddrTable->table, pIpAddrTable->dwNumEntries,
sizeof(MIB_IPADDRROW), IpAddrTableSorter);
ret = NO_ERROR;
}
free(table);
@ -694,6 +974,29 @@ DWORD WINAPI GetIpAddrTable(PMIB_IPADDRTABLE pIpAddrTable, PULONG pdwSize, BOOL
}
static int IpForwardTableSorter(const void *a, const void *b)
{
int ret;
if (a && b) {
PMIB_IPFORWARDROW rowA = (PMIB_IPFORWARDROW)a, rowB = (PMIB_IPFORWARDROW)b;
ret = rowA->dwForwardDest - rowB->dwForwardDest;
if (ret == 0) {
ret = rowA->dwForwardProto - rowB->dwForwardProto;
if (ret == 0) {
ret = rowA->dwForwardPolicy - rowB->dwForwardPolicy;
if (ret == 0)
ret = rowA->dwForwardNextHop - rowB->dwForwardNextHop;
}
}
}
else
ret = 0;
return ret;
}
/******************************************************************
* GetIpForwardTable (IPHLPAPI.@)
*
@ -736,8 +1039,6 @@ DWORD WINAPI GetIpForwardTable(PMIB_IPFORWARDTABLE pIpForwardTable, PULONG pdwSi
else {
DWORD ndx;
if (bOrder)
FIXME(":order not implemented");
pIpForwardTable->dwNumEntries = table->numRoutes;
for (ndx = 0; ndx < numRoutes; ndx++) {
pIpForwardTable->table[ndx].dwForwardIfIndex =
@ -766,6 +1067,9 @@ DWORD WINAPI GetIpForwardTable(PMIB_IPFORWARDTABLE pIpForwardTable, PULONG pdwSi
pIpForwardTable->table[ndx].dwForwardMetric4 = 0;
pIpForwardTable->table[ndx].dwForwardMetric5 = 0;
}
if (bOrder)
qsort(pIpForwardTable->table, pIpForwardTable->dwNumEntries,
sizeof(MIB_IPFORWARDROW), IpForwardTableSorter);
ret = NO_ERROR;
}
free(table);
@ -778,6 +1082,18 @@ DWORD WINAPI GetIpForwardTable(PMIB_IPFORWARDTABLE pIpForwardTable, PULONG pdwSi
}
static int IpNetTableSorter(const void *a, const void *b)
{
int ret;
if (a && b)
ret = ((PMIB_IPNETROW)a)->dwAddr - ((PMIB_IPNETROW)b)->dwAddr;
else
ret = 0;
return ret;
}
/******************************************************************
* GetIpNetTable (IPHLPAPI.@)
*
@ -819,9 +1135,10 @@ DWORD WINAPI GetIpNetTable(PMIB_IPNETTABLE pIpNetTable, PULONG pdwSize, BOOL bOr
ret = ERROR_INSUFFICIENT_BUFFER;
}
else {
if (bOrder)
FIXME(":order not implemented");
memcpy(pIpNetTable, table, size);
if (bOrder)
qsort(pIpNetTable->table, pIpNetTable->dwNumEntries,
sizeof(MIB_IPNETROW), IpNetTableSorter);
ret = NO_ERROR;
}
free(table);
@ -870,12 +1187,14 @@ DWORD WINAPI GetIpStatistics(PMIB_IPSTATS pStats)
DWORD WINAPI GetNetworkParams(PFIXED_INFO pFixedInfo, PULONG pOutBufLen)
{
DWORD size;
HKEY hKey;
if (!pOutBufLen)
return ERROR_INVALID_PARAMETER;
size = sizeof(FIXED_INFO) + min(1, (_res.nscount - 1) *
sizeof(IP_ADDR_STRING));
res_init();
size = sizeof(FIXED_INFO) + (_res.nscount > 0 ? (_res.nscount - 1) *
sizeof(IP_ADDR_STRING) : 0);
if (!pFixedInfo || *pOutBufLen < size) {
*pOutBufLen = size;
return ERROR_BUFFER_OVERFLOW;
@ -890,13 +1209,29 @@ DWORD WINAPI GetNetworkParams(PFIXED_INFO pFixedInfo, PULONG pOutBufLen)
PIP_ADDR_STRING ptr;
int i;
for (i = 0, ptr = &pFixedInfo->DnsServerList; i < _res.nscount;
for (i = 0, ptr = &pFixedInfo->DnsServerList; i < _res.nscount && ptr;
i++, ptr = ptr->Next) {
toIPAddressString(_res.nsaddr_list[i].sin_addr.s_addr,
ptr->IpAddress.String);
ptr->Next = (PIP_ADDR_STRING)((PBYTE)ptr + sizeof(IP_ADDRESS_STRING));
if (i == _res.nscount - 1)
ptr->Next = NULL;
else if (i == 0)
ptr->Next = (PIP_ADDR_STRING)((LPBYTE)pFixedInfo + sizeof(FIXED_INFO));
else
ptr->Next = (PIP_ADDR_STRING)((PBYTE)ptr + sizeof(IP_ADDR_STRING));
}
}
pFixedInfo->NodeType = HYBRID_NODETYPE;
if (RegOpenKeyExA(HKEY_LOCAL_MACHINE,
"\\SYSTEM\\CurrentControlSet\\Services\\VxD\\MSTCP", 0, KEY_READ, &hKey)
== ERROR_SUCCESS)
{
DWORD size = sizeof(pFixedInfo->ScopeId);
RegQueryValueExA(hKey, "ScopeID", NULL, NULL, pFixedInfo->ScopeId, &size);
RegCloseKey(hKey);
}
/* FIXME: can check whether routing's enabled in /proc/sys/net/ipv4/ip_forward
I suppose could also check for a listener on port 53 to set EnableDns */
return NO_ERROR;
@ -995,6 +1330,29 @@ DWORD WINAPI GetTcpStatistics(PMIB_TCPSTATS pStats)
}
static int TcpTableSorter(const void *a, const void *b)
{
int ret;
if (a && b) {
PMIB_TCPROW rowA = (PMIB_TCPROW)a, rowB = (PMIB_TCPROW)b;
ret = rowA->dwLocalAddr - rowB->dwLocalAddr;
if (ret == 0) {
ret = rowA->dwLocalPort - rowB->dwLocalPort;
if (ret == 0) {
ret = rowA->dwRemoteAddr - rowB->dwRemoteAddr;
if (ret == 0)
ret = rowA->dwRemotePort - rowB->dwRemotePort;
}
}
}
else
ret = 0;
return ret;
}
/******************************************************************
* GetTcpTable (IPHLPAPI.@)
*
@ -1035,9 +1393,10 @@ DWORD WINAPI GetTcpTable(PMIB_TCPTABLE pTcpTable, PDWORD pdwSize, BOOL bOrder)
ret = ERROR_INSUFFICIENT_BUFFER;
}
else {
if (bOrder)
FIXME(":order not implemented");
memcpy(pTcpTable, table, size);
if (bOrder)
qsort(pTcpTable->table, pTcpTable->dwNumEntries,
sizeof(MIB_TCPROW), TcpTableSorter);
ret = NO_ERROR;
}
free(table);
@ -1069,6 +1428,23 @@ DWORD WINAPI GetUdpStatistics(PMIB_UDPSTATS pStats)
}
static int UdpTableSorter(const void *a, const void *b)
{
int ret;
if (a && b) {
PMIB_UDPROW rowA = (PMIB_UDPROW)a, rowB = (PMIB_UDPROW)b;
ret = rowA->dwLocalAddr - rowB->dwLocalAddr;
if (ret == 0)
ret = rowA->dwLocalPort - rowB->dwLocalPort;
}
else
ret = 0;
return ret;
}
/******************************************************************
* GetUdpTable (IPHLPAPI.@)
*
@ -1109,9 +1485,10 @@ DWORD WINAPI GetUdpTable(PMIB_UDPTABLE pUdpTable, PDWORD pdwSize, BOOL bOrder)
ret = ERROR_INSUFFICIENT_BUFFER;
}
else {
if (bOrder)
FIXME(":order not implemented");
memcpy(pUdpTable, table, size);
if (bOrder)
qsort(pUdpTable->table, pUdpTable->dwNumEntries,
sizeof(MIB_UDPROW), UdpTableSorter);
ret = NO_ERROR;
}
free(table);