dlls/iphlpapi/iphlpapi_main.c

   1 /*
   2  * iphlpapi dll implementation
   3  *
   4  * Copyright (C) 2003,2006 Juan Lang
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <sys/types.h>
  26 #ifdef HAVE_NETINET_IN_H
  27 # include <netinet/in.h>
  28 #endif
  29 #ifdef HAVE_ARPA_INET_H
  30 # include <arpa/inet.h>
  31 #endif
  32 #ifdef HAVE_ARPA_NAMESER_H
  33 # include <arpa/nameser.h>
  34 #endif
  35 #ifdef HAVE_RESOLV_H
  36 # include <resolv.h>
  37 #endif
  38
  39 #define NONAMELESSUNION
  40 #define NONAMELESSSTRUCT
  41 #include "windef.h"
  42 #include "winbase.h"
  43 #include "winreg.h"
  44 #define USE_WS_PREFIX
  45 #include "winsock2.h"
  46 #include "winternl.h"
  47 #include "ws2ipdef.h"
  48 #include "iphlpapi.h"
  49 #include "ifenum.h"
  50 #include "ipstats.h"
  51 #include "ipifcons.h"
  52 #include "fltdefs.h"
  53
  54 #include "wine/debug.h"
  55
  56 WINE_DEFAULT_DEBUG_CHANNEL(iphlpapi);
  57
  58 #ifndef IF_NAMESIZE
  59 #define IF_NAMESIZE 16
  60 #endif
  61
  62 #ifndef INADDR_NONE
  63 #define INADDR_NONE ~0UL
  64 #endif
  65
  66 /* call res_init() just once because of a bug in Mac OS X 10.4 */
  67 /* Call once per thread on systems that have per-thread _res. */
  68 static void initialise_resolver(void)
  69 {
  70     if ((_res.options & RES_INIT) == 0)
  71         res_init();
  72 }
  73
  74 BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  75 {
  76   switch (fdwReason) {
  77     case DLL_PROCESS_ATTACH:
  78       DisableThreadLibraryCalls( hinstDLL );
  79       break;
  80
  81     case DLL_PROCESS_DETACH:
  82       break;
  83   }
  84   return TRUE;
  85 }
  86
  87 /******************************************************************
  88  *    AddIPAddress (IPHLPAPI.@)
  89  *
  90  * Add an IP address to an adapter.
  91  *
  92  * PARAMS
  93  *  Address     [In]  IP address to add to the adapter
  94  *  IpMask      [In]  subnet mask for the IP address
  95  *  IfIndex     [In]  adapter index to add the address
  96  *  NTEContext  [Out] Net Table Entry (NTE) context for the IP address
  97  *  NTEInstance [Out] NTE instance for the IP address
  98  *
  99  * RETURNS
 100  *  Success: NO_ERROR
 101  *  Failure: error code from winerror.h
 102  *
 103  * FIXME
 104  *  Stub. Currently returns ERROR_NOT_SUPPORTED.
 105  */
 106 DWORD WINAPI AddIPAddress(IPAddr Address, IPMask IpMask, DWORD IfIndex, PULONG NTEContext, PULONG NTEInstance)
 107 {
 108   FIXME(":stub\n");
 109   return ERROR_NOT_SUPPORTED;
 110 }
 111
 112
 113 /******************************************************************
 114  *    AllocateAndGetIfTableFromStack (IPHLPAPI.@)
 115  *
 116  * Get table of local interfaces.
 117  * Like GetIfTable(), but allocate the returned table from heap.
 118  *
 119  * PARAMS
 120  *  ppIfTable [Out] pointer into which the MIB_IFTABLE is
 121  *                  allocated and returned.
 122  *  bOrder    [In]  whether to sort the table
 123  *  heap      [In]  heap from which the table is allocated
 124  *  flags     [In]  flags to HeapAlloc
 125  *
 126  * RETURNS
 127  *  ERROR_INVALID_PARAMETER if ppIfTable is NULL, whatever
 128  *  GetIfTable() returns otherwise.
 129  */
 130 DWORD WINAPI AllocateAndGetIfTableFromStack(PMIB_IFTABLE *ppIfTable,
 131  BOOL bOrder, HANDLE heap, DWORD flags)
 132 {
 133   DWORD ret;
 134
 135   TRACE("ppIfTable %p, bOrder %d, heap %p, flags 0x%08x\n", ppIfTable,
 136         bOrder, heap, flags);
 137   if (!ppIfTable)
 138     ret = ERROR_INVALID_PARAMETER;
 139   else {
 140     DWORD dwSize = 0;
 141
 142     ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
 143     if (ret == ERROR_INSUFFICIENT_BUFFER) {
 144       *ppIfTable = HeapAlloc(heap, flags, dwSize);
 145       ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
 146     }
 147   }
 148   TRACE("returning %d\n", ret);
 149   return ret;
 150 }
 151
 152
 153 static int IpAddrTableSorter(const void *a, const void *b)
 154 {
 155   int ret;
 156
 157   if (a && b)
 158     ret = ((const MIB_IPADDRROW*)a)->dwAddr - ((const MIB_IPADDRROW*)b)->dwAddr;
 159   else
 160     ret = 0;
 161   return ret;
 162 }
 163
 164
 165 /******************************************************************
 166  *    AllocateAndGetIpAddrTableFromStack (IPHLPAPI.@)
 167  *
 168  * Get interface-to-IP address mapping table.
 169  * Like GetIpAddrTable(), but allocate the returned table from heap.
 170  *
 171  * PARAMS
 172  *  ppIpAddrTable [Out] pointer into which the MIB_IPADDRTABLE is
 173  *                      allocated and returned.
 174  *  bOrder        [In]  whether to sort the table
 175  *  heap          [In]  heap from which the table is allocated
 176  *  flags         [In]  flags to HeapAlloc
 177  *
 178  * RETURNS
 179  *  ERROR_INVALID_PARAMETER if ppIpAddrTable is NULL, other error codes on
 180  *  failure, NO_ERROR on success.
 181  */
 182 DWORD WINAPI AllocateAndGetIpAddrTableFromStack(PMIB_IPADDRTABLE *ppIpAddrTable,
 183  BOOL bOrder, HANDLE heap, DWORD flags)
 184 {
 185   DWORD ret;
 186
 187   TRACE("ppIpAddrTable %p, bOrder %d, heap %p, flags 0x%08x\n",
 188    ppIpAddrTable, bOrder, heap, flags);
 189   ret = getIPAddrTable(ppIpAddrTable, heap, flags);
 190   if (!ret && bOrder)
 191     qsort((*ppIpAddrTable)->table, (*ppIpAddrTable)->dwNumEntries,
 192      sizeof(MIB_IPADDRROW), IpAddrTableSorter);
 193   TRACE("returning %d\n", ret);
 194   return ret;
 195 }
 196
 197
 198 /******************************************************************
 199  *    CancelIPChangeNotify (IPHLPAPI.@)
 200  *
 201  * Cancel a previous notification created by NotifyAddrChange or
 202  * NotifyRouteChange.
 203  *
 204  * PARAMS
 205  *  overlapped [In]  overlapped structure that notifies the caller
 206  *
 207  * RETURNS
 208  *  Success: TRUE
 209  *  Failure: FALSE
 210  *
 211  * FIXME
 212  *  Stub, returns FALSE.
 213  */
 214 BOOL WINAPI CancelIPChangeNotify(LPOVERLAPPED overlapped)
 215 {
 216   FIXME("(overlapped %p): stub\n", overlapped);
 217   return FALSE;
 218 }
 219
 220
 221
 222 /******************************************************************
 223  *    CreateIpForwardEntry (IPHLPAPI.@)
 224  *
 225  * Create a route in the local computer's IP table.
 226  *
 227  * PARAMS
 228  *  pRoute [In] new route information
 229  *
 230  * RETURNS
 231  *  Success: NO_ERROR
 232  *  Failure: error code from winerror.h
 233  *
 234  * FIXME
 235  *  Stub, always returns NO_ERROR.
 236  */
 237 DWORD WINAPI CreateIpForwardEntry(PMIB_IPFORWARDROW pRoute)
 238 {
 239   FIXME("(pRoute %p): stub\n", pRoute);
 240   /* could use SIOCADDRT, not sure I want to */
 241   return 0;
 242 }
 243
 244
 245 /******************************************************************
 246  *    CreateIpNetEntry (IPHLPAPI.@)
 247  *
 248  * Create entry in the ARP table.
 249  *
 250  * PARAMS
 251  *  pArpEntry [In] new ARP entry
 252  *
 253  * RETURNS
 254  *  Success: NO_ERROR
 255  *  Failure: error code from winerror.h
 256  *
 257  * FIXME
 258  *  Stub, always returns NO_ERROR.
 259  */
 260 DWORD WINAPI CreateIpNetEntry(PMIB_IPNETROW pArpEntry)
 261 {
 262   FIXME("(pArpEntry %p)\n", pArpEntry);
 263   /* could use SIOCSARP on systems that support it, not sure I want to */
 264   return 0;
 265 }
 266
 267
 268 /******************************************************************
 269  *    CreateProxyArpEntry (IPHLPAPI.@)
 270  *
 271  * Create a Proxy ARP (PARP) entry for an IP address.
 272  *
 273  * PARAMS
 274  *  dwAddress [In] IP address for which this computer acts as a proxy.
 275  *  dwMask    [In] subnet mask for dwAddress
 276  *  dwIfIndex [In] interface index
 277  *
 278  * RETURNS
 279  *  Success: NO_ERROR
 280  *  Failure: error code from winerror.h
 281  *
 282  * FIXME
 283  *  Stub, returns ERROR_NOT_SUPPORTED.
 284  */
 285 DWORD WINAPI CreateProxyArpEntry(DWORD dwAddress, DWORD dwMask, DWORD dwIfIndex)
 286 {
 287   FIXME("(dwAddress 0x%08x, dwMask 0x%08x, dwIfIndex 0x%08x): stub\n",
 288    dwAddress, dwMask, dwIfIndex);
 289   return ERROR_NOT_SUPPORTED;
 290 }
 291
 292
 293 /******************************************************************
 294  *    DeleteIPAddress (IPHLPAPI.@)
 295  *
 296  * Delete an IP address added with AddIPAddress().
 297  *
 298  * PARAMS
 299  *  NTEContext [In] NTE context from AddIPAddress();
 300  *
 301  * RETURNS
 302  *  Success: NO_ERROR
 303  *  Failure: error code from winerror.h
 304  *
 305  * FIXME
 306  *  Stub, returns ERROR_NOT_SUPPORTED.
 307  */
 308 DWORD WINAPI DeleteIPAddress(ULONG NTEContext)
 309 {
 310   FIXME("(NTEContext %d): stub\n", NTEContext);
 311   return ERROR_NOT_SUPPORTED;
 312 }
 313
 314
 315 /******************************************************************
 316  *    DeleteIpForwardEntry (IPHLPAPI.@)
 317  *
 318  * Delete a route.
 319  *
 320  * PARAMS
 321  *  pRoute [In] route to delete
 322  *
 323  * RETURNS
 324  *  Success: NO_ERROR
 325  *  Failure: error code from winerror.h
 326  *
 327  * FIXME
 328  *  Stub, returns NO_ERROR.
 329  */
 330 DWORD WINAPI DeleteIpForwardEntry(PMIB_IPFORWARDROW pRoute)
 331 {
 332   FIXME("(pRoute %p): stub\n", pRoute);
 333   /* could use SIOCDELRT, not sure I want to */
 334   return 0;
 335 }
 336
 337
 338 /******************************************************************
 339  *    DeleteIpNetEntry (IPHLPAPI.@)
 340  *
 341  * Delete an ARP entry.
 342  *
 343  * PARAMS
 344  *  pArpEntry [In] ARP entry to delete
 345  *
 346  * RETURNS
 347  *  Success: NO_ERROR
 348  *  Failure: error code from winerror.h
 349  *
 350  * FIXME
 351  *  Stub, returns NO_ERROR.
 352  */
 353 DWORD WINAPI DeleteIpNetEntry(PMIB_IPNETROW pArpEntry)
 354 {
 355   FIXME("(pArpEntry %p): stub\n", pArpEntry);
 356   /* could use SIOCDARP on systems that support it, not sure I want to */
 357   return 0;
 358 }
 359
 360
 361 /******************************************************************
 362  *    DeleteProxyArpEntry (IPHLPAPI.@)
 363  *
 364  * Delete a Proxy ARP entry.
 365  *
 366  * PARAMS
 367  *  dwAddress [In] IP address for which this computer acts as a proxy.
 368  *  dwMask    [In] subnet mask for dwAddress
 369  *  dwIfIndex [In] interface index
 370  *
 371  * RETURNS
 372  *  Success: NO_ERROR
 373  *  Failure: error code from winerror.h
 374  *
 375  * FIXME
 376  *  Stub, returns ERROR_NOT_SUPPORTED.
 377  */
 378 DWORD WINAPI DeleteProxyArpEntry(DWORD dwAddress, DWORD dwMask, DWORD dwIfIndex)
 379 {
 380   FIXME("(dwAddress 0x%08x, dwMask 0x%08x, dwIfIndex 0x%08x): stub\n",
 381    dwAddress, dwMask, dwIfIndex);
 382   return ERROR_NOT_SUPPORTED;
 383 }
 384
 385
 386 /******************************************************************
 387  *    EnableRouter (IPHLPAPI.@)
 388  *
 389  * Turn on ip forwarding.
 390  *
 391  * PARAMS
 392  *  pHandle     [In/Out]
 393  *  pOverlapped [In/Out] hEvent member should contain a valid handle.
 394  *
 395  * RETURNS
 396  *  Success: ERROR_IO_PENDING
 397  *  Failure: error code from winerror.h
 398  *
 399  * FIXME
 400  *  Stub, returns ERROR_NOT_SUPPORTED.
 401  */
 402 DWORD WINAPI EnableRouter(HANDLE * pHandle, OVERLAPPED * pOverlapped)
 403 {
 404   FIXME("(pHandle %p, pOverlapped %p): stub\n", pHandle, pOverlapped);
 405   /* could echo "1" > /proc/net/sys/net/ipv4/ip_forward, not sure I want to
 406      could map EACCESS to ERROR_ACCESS_DENIED, I suppose
 407    */
 408   return ERROR_NOT_SUPPORTED;
 409 }
 410
 411
 412 /******************************************************************
 413  *    FlushIpNetTable (IPHLPAPI.@)
 414  *
 415  * Delete all ARP entries of an interface
 416  *
 417  * PARAMS
 418  *  dwIfIndex [In] interface index
 419  *
 420  * RETURNS
 421  *  Success: NO_ERROR
 422  *  Failure: error code from winerror.h
 423  *
 424  * FIXME
 425  *  Stub, returns ERROR_NOT_SUPPORTED.
 426  */
 427 DWORD WINAPI FlushIpNetTable(DWORD dwIfIndex)
 428 {
 429   FIXME("(dwIfIndex 0x%08x): stub\n", dwIfIndex);
 430   /* this flushes the arp cache of the given index */
 431   return ERROR_NOT_SUPPORTED;
 432 }
 433
 434
 435 /******************************************************************
 436  *    GetAdapterIndex (IPHLPAPI.@)
 437  *
 438  * Get interface index from its name.
 439  *
 440  * PARAMS
 441  *  AdapterName [In]  unicode string with the adapter name
 442  *  IfIndex     [Out] returns found interface index
 443  *
 444  * RETURNS
 445  *  Success: NO_ERROR
 446  *  Failure: error code from winerror.h
 447  */
 448 DWORD WINAPI GetAdapterIndex(LPWSTR AdapterName, PULONG IfIndex)
 449 {
 450   char adapterName[MAX_ADAPTER_NAME];
 451   unsigned int i;
 452   DWORD ret;
 453
 454   TRACE("(AdapterName %p, IfIndex %p)\n", AdapterName, IfIndex);
 455   /* The adapter name is guaranteed not to have any unicode characters, so
 456    * this translation is never lossy */
 457   for (i = 0; i < sizeof(adapterName) - 1 && AdapterName[i]; i++)
 458     adapterName[i] = (char)AdapterName[i];
 459   adapterName[i] = '\0';
 460   ret = getInterfaceIndexByName(adapterName, IfIndex);
 461   TRACE("returning %d\n", ret);
 462   return ret;
 463 }
 464
 465
 466 /******************************************************************
 467  *    GetAdaptersInfo (IPHLPAPI.@)
 468  *
 469  * Get information about adapters.
 470  *
 471  * PARAMS
 472  *  pAdapterInfo [Out] buffer for adapter infos
 473  *  pOutBufLen   [In]  length of output buffer
 474  *
 475  * RETURNS
 476  *  Success: NO_ERROR
 477  *  Failure: error code from winerror.h
 478  */
 479 DWORD WINAPI GetAdaptersInfo(PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen)
 480 {
 481   DWORD ret;
 482
 483   TRACE("pAdapterInfo %p, pOutBufLen %p\n", pAdapterInfo, pOutBufLen);
 484   if (!pOutBufLen)
 485     ret = ERROR_INVALID_PARAMETER;
 486   else {
 487     DWORD numNonLoopbackInterfaces = getNumNonLoopbackInterfaces();
 488
 489     if (numNonLoopbackInterfaces > 0) {
 490       DWORD numIPAddresses = getNumIPAddresses();
 491       ULONG size;
 492
 493       /* This may slightly overestimate the amount of space needed, because
 494        * the IP addresses include the loopback address, but it's easier
 495        * to make sure there's more than enough space than to make sure there's
 496        * precisely enough space.
 497        */
 498       size = sizeof(IP_ADAPTER_INFO) * numNonLoopbackInterfaces;
 499       size += numIPAddresses  * sizeof(IP_ADDR_STRING);
 500       if (!pAdapterInfo || *pOutBufLen < size) {
 501         *pOutBufLen = size;
 502         ret = ERROR_BUFFER_OVERFLOW;
 503       }
 504       else {
 505         InterfaceIndexTable *table = NULL;
 506         PMIB_IPADDRTABLE ipAddrTable = NULL;
 507         PMIB_IPFORWARDTABLE routeTable = NULL;
 508
 509         ret = getIPAddrTable(&ipAddrTable, GetProcessHeap(), 0);
 510         if (!ret)
 511           ret = AllocateAndGetIpForwardTableFromStack(&routeTable, FALSE, GetProcessHeap(), 0);
 512         if (!ret)
 513           table = getNonLoopbackInterfaceIndexTable();
 514         if (table) {
 515           size = sizeof(IP_ADAPTER_INFO) * table->numIndexes;
 516           size += ipAddrTable->dwNumEntries * sizeof(IP_ADDR_STRING);
 517           if (*pOutBufLen < size) {
 518             *pOutBufLen = size;
 519             ret = ERROR_INSUFFICIENT_BUFFER;
 520           }
 521           else {
 522             DWORD ndx;
 523             HKEY hKey;
 524             BOOL winsEnabled = FALSE;
 525             IP_ADDRESS_STRING primaryWINS, secondaryWINS;
 526             PIP_ADDR_STRING nextIPAddr = (PIP_ADDR_STRING)((LPBYTE)pAdapterInfo
 527              + numNonLoopbackInterfaces * sizeof(IP_ADAPTER_INFO));
 528
 529             memset(pAdapterInfo, 0, size);
 530             /* @@ Wine registry key: HKCU\Software\Wine\Network */
 531             if (RegOpenKeyA(HKEY_CURRENT_USER, "Software\\Wine\\Network",
 532              &hKey) == ERROR_SUCCESS) {
 533               DWORD size = sizeof(primaryWINS.String);
 534               unsigned long addr;
 535
 536               RegQueryValueExA(hKey, "WinsServer", NULL, NULL,
 537                (LPBYTE)primaryWINS.String, &size);
 538               addr = inet_addr(primaryWINS.String);
 539               if (addr != INADDR_NONE && addr != INADDR_ANY)
 540                 winsEnabled = TRUE;
 541               size = sizeof(secondaryWINS.String);
 542               RegQueryValueExA(hKey, "BackupWinsServer", NULL, NULL,
 543                (LPBYTE)secondaryWINS.String, &size);
 544               addr = inet_addr(secondaryWINS.String);
 545               if (addr != INADDR_NONE && addr != INADDR_ANY)
 546                 winsEnabled = TRUE;
 547               RegCloseKey(hKey);
 548             }
 549             for (ndx = 0; ndx < table->numIndexes; ndx++) {
 550               PIP_ADAPTER_INFO ptr = &pAdapterInfo[ndx];
 551               DWORD i;
 552               PIP_ADDR_STRING currentIPAddr = &ptr->IpAddressList;
 553               BOOL firstIPAddr = TRUE;
 554
 555               /* on Win98 this is left empty, but whatever */
 556               getInterfaceNameByIndex(table->indexes[ndx], ptr->AdapterName);
 557               getInterfaceNameByIndex(table->indexes[ndx], ptr->Description);
 558               ptr->AddressLength = sizeof(ptr->Address);
 559               getInterfacePhysicalByIndex(table->indexes[ndx],
 560                &ptr->AddressLength, ptr->Address, &ptr->Type);
 561               ptr->Index = table->indexes[ndx];
 562               for (i = 0; i < ipAddrTable->dwNumEntries; i++) {
 563                 if (ipAddrTable->table[i].dwIndex == ptr->Index) {
 564                   if (firstIPAddr) {
 565                     toIPAddressString(ipAddrTable->table[i].dwAddr,
 566                      ptr->IpAddressList.IpAddress.String);
 567                     toIPAddressString(ipAddrTable->table[i].dwMask,
 568                      ptr->IpAddressList.IpMask.String);
 569                     firstIPAddr = FALSE;
 570                   }
 571                   else {
 572                     currentIPAddr->Next = nextIPAddr;
 573                     currentIPAddr = nextIPAddr;
 574                     toIPAddressString(ipAddrTable->table[i].dwAddr,
 575                      currentIPAddr->IpAddress.String);
 576                     toIPAddressString(ipAddrTable->table[i].dwMask,
 577                      currentIPAddr->IpMask.String);
 578                     nextIPAddr++;
 579                   }
 580                 }
 581               }
 582               /* Find first router through this interface, which we'll assume
 583                * is the default gateway for this adapter */
 584               for (i = 0; i < routeTable->dwNumEntries; i++)
 585                 if (routeTable->table[i].dwForwardIfIndex == ptr->Index
 586                  && routeTable->table[i].u1.ForwardType ==
 587                  MIB_IPROUTE_TYPE_INDIRECT)
 588                   toIPAddressString(routeTable->table[i].dwForwardNextHop,
 589                    ptr->GatewayList.IpAddress.String);
 590               if (winsEnabled) {
 591                 ptr->HaveWins = TRUE;
 592                 memcpy(ptr->PrimaryWinsServer.IpAddress.String,
 593                  primaryWINS.String, sizeof(primaryWINS.String));
 594                 memcpy(ptr->SecondaryWinsServer.IpAddress.String,
 595                  secondaryWINS.String, sizeof(secondaryWINS.String));
 596               }
 597               if (ndx < table->numIndexes - 1)
 598                 ptr->Next = &pAdapterInfo[ndx + 1];
 599               else
 600                 ptr->Next = NULL;
 601
 602               ptr->DhcpEnabled = TRUE;
 603             }
 604             ret = NO_ERROR;
 605           }
 606           HeapFree(GetProcessHeap(), 0, table);
 607         }
 608         else
 609           ret = ERROR_OUTOFMEMORY;
 610         HeapFree(GetProcessHeap(), 0, routeTable);
 611         HeapFree(GetProcessHeap(), 0, ipAddrTable);
 612       }
 613     }
 614     else
 615       ret = ERROR_NO_DATA;
 616   }
 617   TRACE("returning %d\n", ret);
 618   return ret;
 619 }
 620
 621 static DWORD typeFromMibType(DWORD mib_type)
 622 {
 623     switch (mib_type)
 624     {
 625     case MIB_IF_TYPE_ETHERNET:  return IF_TYPE_ETHERNET_CSMACD;
 626     case MIB_IF_TYPE_TOKENRING: return IF_TYPE_ISO88025_TOKENRING;
 627     case MIB_IF_TYPE_PPP:       return IF_TYPE_PPP;
 628     case MIB_IF_TYPE_LOOPBACK:  return IF_TYPE_SOFTWARE_LOOPBACK;
 629     default:                    return IF_TYPE_OTHER;
 630     }
 631 }
 632
 633 static NET_IF_CONNECTION_TYPE connectionTypeFromMibType(DWORD mib_type)
 634 {
 635     switch (mib_type)
 636     {
 637     case MIB_IF_TYPE_PPP:       return NET_IF_CONNECTION_DEMAND;
 638     case MIB_IF_TYPE_SLIP:      return NET_IF_CONNECTION_DEMAND;
 639     default:                    return NET_IF_CONNECTION_DEDICATED;
 640     }
 641 }
 642
 643 static ULONG v4addressesFromIndex(IF_INDEX index, DWORD **addrs, ULONG *num_addrs)
 644 {
 645     ULONG ret, i, j;
 646     MIB_IPADDRTABLE *at;
 647
 648     *num_addrs = 0;
 649     if ((ret = getIPAddrTable(&at, GetProcessHeap(), 0))) return ret;
 650     for (i = 0; i < at->dwNumEntries; i++)
 651     {
 652         if (at->table[i].dwIndex == index) (*num_addrs)++;
 653     }
 654     if (!(*addrs = HeapAlloc(GetProcessHeap(), 0, *num_addrs * sizeof(DWORD))))
 655     {
 656         HeapFree(GetProcessHeap(), 0, at);
 657         return ERROR_OUTOFMEMORY;
 658     }
 659     for (i = 0, j = 0; i < at->dwNumEntries; i++)
 660     {
 661         if (at->table[i].dwIndex == index) (*addrs)[j++] = at->table[i].dwAddr;
 662     }
 663     HeapFree(GetProcessHeap(), 0, at);
 664     return ERROR_SUCCESS;
 665 }
 666
 667 static char *debugstr_ipv4(const in_addr_t *in_addr, char *buf)
 668 {
 669     const BYTE *addrp;
 670     char *p = buf;
 671
 672     for (addrp = (const BYTE *)in_addr;
 673      addrp - (const BYTE *)in_addr < sizeof(*in_addr);
 674      addrp++)
 675     {
 676         if (addrp == (const BYTE *)in_addr + sizeof(*in_addr) - 1)
 677             sprintf(p, "%d", *addrp);
 678         else
 679             p += sprintf(p, "%d.", *addrp);
 680     }
 681     return buf;
 682 }
 683
 684 static char *debugstr_ipv6(const struct WS_sockaddr_in6 *sin, char *buf)
 685 {
 686     const IN6_ADDR *addr = &sin->sin6_addr;
 687     char *p = buf;
 688     int i;
 689     BOOL in_zero = FALSE;
 690
 691     for (i = 0; i < 7; i++)
 692     {
 693         if (!addr->u.Word[i])
 694         {
 695             if (i == 0)
 696                 *p++ = ':';
 697             if (!in_zero)
 698             {
 699                 *p++ = ':';
 700                 in_zero = TRUE;
 701             }
 702         }
 703         else
 704         {
 705             p += sprintf(p, "%x:", ntohs(addr->u.Word[i]));
 706             in_zero = FALSE;
 707         }
 708     }
 709     sprintf(p, "%x", ntohs(addr->u.Word[7]));
 710     return buf;
 711 }
 712
 713 static ULONG count_v4_gateways(DWORD index, PMIB_IPFORWARDTABLE routeTable)
 714 {
 715     DWORD i, num_gateways = 0;
 716
 717     for (i = 0; i < routeTable->dwNumEntries; i++)
 718     {
 719         if (routeTable->table[i].dwForwardIfIndex == index &&
 720             routeTable->table[i].u1.ForwardType == MIB_IPROUTE_TYPE_INDIRECT)
 721             num_gateways++;
 722     }
 723     return num_gateways;
 724 }
 725
 726 static PMIB_IPFORWARDROW findIPv4Gateway(DWORD index,
 727                                          PMIB_IPFORWARDTABLE routeTable)
 728 {
 729     DWORD i;
 730     PMIB_IPFORWARDROW row = NULL;
 731
 732     for (i = 0; !row && i < routeTable->dwNumEntries; i++)
 733     {
 734         if (routeTable->table[i].dwForwardIfIndex == index &&
 735             routeTable->table[i].u1.ForwardType == MIB_IPROUTE_TYPE_INDIRECT)
 736             row = &routeTable->table[i];
 737     }
 738     return row;
 739 }
 740
 741 static ULONG adapterAddressesFromIndex(ULONG family, ULONG flags, IF_INDEX index,
 742                                        IP_ADAPTER_ADDRESSES *aa, ULONG *size)
 743 {
 744     ULONG ret = ERROR_SUCCESS, i, num_v4addrs = 0, num_v4_gateways = 0, num_v6addrs = 0, total_size;
 745     DWORD *v4addrs = NULL;
 746     SOCKET_ADDRESS *v6addrs = NULL;
 747     PMIB_IPFORWARDTABLE routeTable = NULL;
 748
 749     if (family == WS_AF_INET)
 750     {
 751         if (!(flags & GAA_FLAG_SKIP_UNICAST))
 752             ret = v4addressesFromIndex(index, &v4addrs, &num_v4addrs);
 753         if (!ret && flags & GAA_FLAG_INCLUDE_ALL_GATEWAYS)
 754         {
 755             ret = AllocateAndGetIpForwardTableFromStack(&routeTable, FALSE,
 756                                                         GetProcessHeap(), 0);
 757             if (!ret)
 758                 num_v4_gateways = count_v4_gateways(index, routeTable);
 759         }
 760     }
 761     else if (family == WS_AF_INET6)
 762     {
 763         if (!(flags & GAA_FLAG_SKIP_UNICAST))
 764             ret = v6addressesFromIndex(index, &v6addrs, &num_v6addrs);
 765     }
 766     else if (family == WS_AF_UNSPEC)
 767     {
 768         if (!(flags & GAA_FLAG_SKIP_UNICAST))
 769             ret = v4addressesFromIndex(index, &v4addrs, &num_v4addrs);
 770         if (!ret && flags & GAA_FLAG_INCLUDE_ALL_GATEWAYS)
 771         {
 772             ret = AllocateAndGetIpForwardTableFromStack(&routeTable, FALSE,
 773                                                         GetProcessHeap(), 0);
 774             if (!ret)
 775                 num_v4_gateways = count_v4_gateways(index, routeTable);
 776         }
 777         if (!ret && !(flags & GAA_FLAG_SKIP_UNICAST))
 778             ret = v6addressesFromIndex(index, &v6addrs, &num_v6addrs);
 779     }
 780     else
 781     {
 782         FIXME("address family %u unsupported\n", family);
 783         ret = ERROR_NO_DATA;
 784     }
 785     if (ret)
 786     {
 787         HeapFree(GetProcessHeap(), 0, v4addrs);
 788         HeapFree(GetProcessHeap(), 0, routeTable);
 789         return ret;
 790     }
 791
 792     total_size = sizeof(IP_ADAPTER_ADDRESSES);
 793     total_size += IF_NAMESIZE;
 794     total_size += IF_NAMESIZE * sizeof(WCHAR);
 795     if (!(flags & GAA_FLAG_SKIP_FRIENDLY_NAME))
 796         total_size += IF_NAMESIZE * sizeof(WCHAR);
 797     total_size += sizeof(IP_ADAPTER_UNICAST_ADDRESS) * num_v4addrs;
 798     total_size += sizeof(struct sockaddr_in) * num_v4addrs;
 799     total_size += (sizeof(IP_ADAPTER_GATEWAY_ADDRESS) + sizeof(SOCKADDR_IN)) * num_v4_gateways;
 800     total_size += sizeof(IP_ADAPTER_UNICAST_ADDRESS) * num_v6addrs;
 801     total_size += sizeof(SOCKET_ADDRESS) * num_v6addrs;
 802     for (i = 0; i < num_v6addrs; i++)
 803         total_size += v6addrs[i].iSockaddrLength;
 804
 805     if (aa && *size >= total_size)
 806     {
 807         char name[IF_NAMESIZE], *ptr = (char *)aa + sizeof(IP_ADAPTER_ADDRESSES), *src;
 808         WCHAR *dst;
 809         DWORD buflen, type;
 810         INTERNAL_IF_OPER_STATUS status;
 811
 812         memset(aa, 0, sizeof(IP_ADAPTER_ADDRESSES));
 813         aa->u.s.Length  = sizeof(IP_ADAPTER_ADDRESSES);
 814         aa->u.s.IfIndex = index;
 815
 816         getInterfaceNameByIndex(index, name);
 817         memcpy(ptr, name, IF_NAMESIZE);
 818         aa->AdapterName = ptr;
 819         ptr += IF_NAMESIZE;
 820         if (!(flags & GAA_FLAG_SKIP_FRIENDLY_NAME))
 821         {
 822             aa->FriendlyName = (WCHAR *)ptr;
 823             for (src = name, dst = (WCHAR *)ptr; *src; src++, dst++)
 824                 *dst = *src;
 825             *dst++ = 0;
 826             ptr = (char *)dst;
 827         }
 828         aa->Description = (WCHAR *)ptr;
 829         for (src = name, dst = (WCHAR *)ptr; *src; src++, dst++)
 830             *dst = *src;
 831         *dst++ = 0;
 832         ptr = (char *)dst;
 833
 834         TRACE("%s: %d IPv4 addresses, %d IPv6 addresses:\n", name, num_v4addrs,
 835               num_v6addrs);
 836         if (num_v4_gateways)
 837         {
 838             PMIB_IPFORWARDROW adapterRow;
 839
 840             if ((adapterRow = findIPv4Gateway(index, routeTable)))
 841             {
 842                 PIP_ADAPTER_GATEWAY_ADDRESS gw;
 843                 PSOCKADDR_IN sin;
 844
 845                 gw = (PIP_ADAPTER_GATEWAY_ADDRESS)ptr;
 846                 aa->FirstGatewayAddress = gw;
 847
 848                 gw->u.s.Length = sizeof(IP_ADAPTER_GATEWAY_ADDRESS);
 849                 ptr += sizeof(IP_ADAPTER_GATEWAY_ADDRESS);
 850                 sin = (PSOCKADDR_IN)ptr;
 851                 sin->sin_family = AF_INET;
 852                 sin->sin_port = 0;
 853                 memcpy(&sin->sin_addr, &adapterRow->dwForwardNextHop,
 854                        sizeof(DWORD));
 855                 gw->Address.lpSockaddr = (LPSOCKADDR)sin;
 856                 gw->Address.iSockaddrLength = sizeof(SOCKADDR_IN);
 857                 gw->Next = NULL;
 858                 ptr += sizeof(SOCKADDR_IN);
 859             }
 860         }
 861         if (num_v4addrs)
 862         {
 863             IP_ADAPTER_UNICAST_ADDRESS *ua;
 864             struct sockaddr_in *sa;
 865             aa->Flags |= IP_ADAPTER_IPV4_ENABLED;
 866             ua = aa->FirstUnicastAddress = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 867             for (i = 0; i < num_v4addrs; i++)
 868             {
 869                 char addr_buf[16];
 870
 871                 memset(ua, 0, sizeof(IP_ADAPTER_UNICAST_ADDRESS));
 872                 ua->u.s.Length              = sizeof(IP_ADAPTER_UNICAST_ADDRESS);
 873                 ua->Address.iSockaddrLength = sizeof(struct sockaddr_in);
 874                 ua->Address.lpSockaddr      = (SOCKADDR *)((char *)ua + ua->u.s.Length);
 875
 876                 sa = (struct sockaddr_in *)ua->Address.lpSockaddr;
 877                 sa->sin_family      = AF_INET;
 878                 sa->sin_addr.s_addr = v4addrs[i];
 879                 sa->sin_port        = 0;
 880                 TRACE("IPv4 %d/%d: %s\n", i + 1, num_v4addrs,
 881                       debugstr_ipv4(&sa->sin_addr.s_addr, addr_buf));
 882
 883                 ptr += ua->u.s.Length + ua->Address.iSockaddrLength;
 884                 if (i < num_v4addrs - 1)
 885                 {
 886                     ua->Next = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 887                     ua = ua->Next;
 888                 }
 889             }
 890         }
 891         if (num_v6addrs)
 892         {
 893             IP_ADAPTER_UNICAST_ADDRESS *ua;
 894             struct WS_sockaddr_in6 *sa;
 895
 896             aa->Flags |= IP_ADAPTER_IPV6_ENABLED;
 897             if (aa->FirstUnicastAddress)
 898             {
 899                 for (ua = aa->FirstUnicastAddress; ua->Next; ua = ua->Next)
 900                     ;
 901                 ua->Next = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 902                 ua = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 903             }
 904             else
 905                 ua = aa->FirstUnicastAddress = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 906             for (i = 0; i < num_v6addrs; i++)
 907             {
 908                 char addr_buf[46];
 909
 910                 memset(ua, 0, sizeof(IP_ADAPTER_UNICAST_ADDRESS));
 911                 ua->u.s.Length              = sizeof(IP_ADAPTER_UNICAST_ADDRESS);
 912                 ua->Address.iSockaddrLength = v6addrs[i].iSockaddrLength;
 913                 ua->Address.lpSockaddr      = (SOCKADDR *)((char *)ua + ua->u.s.Length);
 914
 915                 sa = (struct WS_sockaddr_in6 *)ua->Address.lpSockaddr;
 916                 memcpy(sa, v6addrs[i].lpSockaddr, sizeof(*sa));
 917                 TRACE("IPv6 %d/%d: %s\n", i + 1, num_v6addrs,
 918                       debugstr_ipv6(sa, addr_buf));
 919
 920                 ptr += ua->u.s.Length + ua->Address.iSockaddrLength;
 921                 if (i < num_v6addrs - 1)
 922                 {
 923                     ua->Next = (IP_ADAPTER_UNICAST_ADDRESS *)ptr;
 924                     ua = ua->Next;
 925                 }
 926             }
 927         }
 928
 929         buflen = MAX_INTERFACE_PHYSADDR;
 930         getInterfacePhysicalByIndex(index, &buflen, aa->PhysicalAddress, &type);
 931         aa->PhysicalAddressLength = buflen;
 932         aa->IfType = typeFromMibType(type);
 933         aa->ConnectionType = connectionTypeFromMibType(type);
 934
 935         getInterfaceMtuByName(name, &aa->Mtu);
 936
 937         getInterfaceStatusByName(name, &status);
 938         if (status == MIB_IF_OPER_STATUS_OPERATIONAL) aa->OperStatus = IfOperStatusUp;
 939         else if (status == MIB_IF_OPER_STATUS_NON_OPERATIONAL) aa->OperStatus = IfOperStatusDown;
 940         else aa->OperStatus = IfOperStatusUnknown;
 941     }
 942     *size = total_size;
 943     HeapFree(GetProcessHeap(), 0, routeTable);
 944     HeapFree(GetProcessHeap(), 0, v6addrs);
 945     HeapFree(GetProcessHeap(), 0, v4addrs);
 946     return ERROR_SUCCESS;
 947 }
 948
 949 static ULONG get_dns_server_addresses(PIP_ADAPTER_DNS_SERVER_ADDRESS address, ULONG *len)
 950 {
 951     DWORD size;
 952
 953     initialise_resolver();
 954     /* FIXME: no support for IPv6 DNS server addresses.  Doing so requires
 955      * sizeof SOCKADDR_STORAGE instead, and using _res._u._ext.nsaddrs when
 956      * available.
 957      */
 958     size = _res.nscount * (sizeof(IP_ADAPTER_DNS_SERVER_ADDRESS) + sizeof(SOCKADDR));
 959     if (!address || *len < size)
 960     {
 961         *len = size;
 962         return ERROR_BUFFER_OVERFLOW;
 963     }
 964     *len = size;
 965     if (_res.nscount > 0)
 966     {
 967         PIP_ADAPTER_DNS_SERVER_ADDRESS addr;
 968         int i;
 969
 970         for (i = 0, addr = address; i < _res.nscount && addr;
 971              i++, addr = addr->Next)
 972         {
 973             SOCKADDR_IN *sin;
 974
 975             addr->Address.iSockaddrLength = sizeof(SOCKADDR);
 976             addr->Address.lpSockaddr =
 977              (LPSOCKADDR)((PBYTE)addr + sizeof(IP_ADAPTER_DNS_SERVER_ADDRESS));
 978             sin = (SOCKADDR_IN *)addr->Address.lpSockaddr;
 979             sin->sin_family = WS_AF_INET;
 980             sin->sin_port = _res.nsaddr_list[i].sin_port;
 981             memcpy(&sin->sin_addr, &_res.nsaddr_list[i].sin_addr, sizeof(sin->sin_addr));
 982             if (i == _res.nscount - 1)
 983                 addr->Next = NULL;
 984             else
 985                 addr->Next =
 986                  (PIP_ADAPTER_DNS_SERVER_ADDRESS)((PBYTE)addr +
 987                  sizeof(IP_ADAPTER_DNS_SERVER_ADDRESS) + sizeof(SOCKADDR));
 988         }
 989     }
 990     return ERROR_SUCCESS;
 991 }
 992
 993 static BOOL is_ip_address_string(const char *str)
 994 {
 995     struct in_addr in;
 996     int ret;
 997
 998     ret = inet_aton(str, &in);
 999     return ret != 0;
1000 }
1001
1002 static ULONG get_dns_suffix(WCHAR *suffix, ULONG *len)
1003 {
1004     ULONG size, i;
1005     char *found_suffix = NULL;
1006
1007     initialise_resolver();
1008     /* Always return a NULL-terminated string, even if it's empty. */
1009     size = sizeof(WCHAR);
1010     for (i = 0, found_suffix = NULL;
1011          !found_suffix && i < MAXDNSRCH + 1 && _res.dnsrch[i]; i++)
1012     {
1013         /* This uses a heuristic to select a DNS suffix:
1014          * the first, non-IP address string is selected.
1015          */
1016         if (!is_ip_address_string(_res.dnsrch[i]))
1017             found_suffix = _res.dnsrch[i];
1018     }
1019     if (found_suffix)
1020         size += strlen(found_suffix) * sizeof(WCHAR);
1021     if (!suffix || *len < size)
1022     {
1023         *len = size;
1024         return ERROR_BUFFER_OVERFLOW;
1025     }
1026     *len = size;
1027     if (found_suffix)
1028     {
1029         char *p;
1030
1031         for (p = found_suffix; *p; p++)
1032             *suffix++ = *p;
1033     }
1034     *suffix = 0;
1035     return ERROR_SUCCESS;
1036 }
1037
1038 ULONG WINAPI DECLSPEC_HOTPATCH GetAdaptersAddresses(ULONG family, ULONG flags, PVOID reserved,
1039                                                     PIP_ADAPTER_ADDRESSES aa, PULONG buflen)
1040 {
1041     InterfaceIndexTable *table;
1042     ULONG i, size, dns_server_size, dns_suffix_size, total_size, ret = ERROR_NO_DATA;
1043
1044     TRACE("(%d, %08x, %p, %p, %p)\n", family, flags, reserved, aa, buflen);
1045
1046     if (!buflen) return ERROR_INVALID_PARAMETER;
1047
1048     table = getInterfaceIndexTable();
1049     if (!table || !table->numIndexes)
1050     {
1051         HeapFree(GetProcessHeap(), 0, table);
1052         return ERROR_NO_DATA;
1053     }
1054     total_size = 0;
1055     for (i = 0; i < table->numIndexes; i++)
1056     {
1057         size = 0;
1058         if ((ret = adapterAddressesFromIndex(family, flags, table->indexes[i], NULL, &size)))
1059         {
1060             HeapFree(GetProcessHeap(), 0, table);
1061             return ret;
1062         }
1063         total_size += size;
1064     }
1065     if (!(flags & GAA_FLAG_SKIP_DNS_SERVER))
1066     {
1067         /* Since DNS servers aren't really per adapter, get enough space for a
1068          * single copy of them.
1069          */
1070         get_dns_server_addresses(NULL, &dns_server_size);
1071         total_size += dns_server_size;
1072     }
1073     /* Since DNS suffix also isn't really per adapter, get enough space for a
1074      * single copy of it.
1075      */
1076     get_dns_suffix(NULL, &dns_suffix_size);
1077     total_size += dns_suffix_size;
1078     if (aa && *buflen >= total_size)
1079     {
1080         ULONG bytes_left = size = total_size;
1081         PIP_ADAPTER_ADDRESSES first_aa = aa;
1082         PIP_ADAPTER_DNS_SERVER_ADDRESS firstDns;
1083         WCHAR *dnsSuffix;
1084
1085         for (i = 0; i < table->numIndexes; i++)
1086         {
1087             if ((ret = adapterAddressesFromIndex(family, flags, table->indexes[i], aa, &size)))
1088             {
1089                 HeapFree(GetProcessHeap(), 0, table);
1090                 return ret;
1091             }
1092             if (i < table->numIndexes - 1)
1093             {
1094                 aa->Next = (IP_ADAPTER_ADDRESSES *)((char *)aa + size);
1095                 aa = aa->Next;
1096                 size = bytes_left -= size;
1097             }
1098         }
1099         if (!(flags & GAA_FLAG_SKIP_DNS_SERVER))
1100         {
1101             firstDns = (PIP_ADAPTER_DNS_SERVER_ADDRESS)((BYTE *)first_aa + total_size - dns_server_size - dns_suffix_size);
1102             get_dns_server_addresses(firstDns, &dns_server_size);
1103             for (aa = first_aa; aa; aa = aa->Next)
1104             {
1105                 if (aa->IfType != IF_TYPE_SOFTWARE_LOOPBACK && aa->OperStatus == IfOperStatusUp)
1106                     aa->FirstDnsServerAddress = firstDns;
1107             }
1108         }
1109         aa = first_aa;
1110         dnsSuffix = (WCHAR *)((BYTE *)aa + total_size - dns_suffix_size);
1111         get_dns_suffix(dnsSuffix, &dns_suffix_size);
1112         for (; aa; aa = aa->Next)
1113         {
1114             if (aa->IfType != IF_TYPE_SOFTWARE_LOOPBACK && aa->OperStatus == IfOperStatusUp)
1115                 aa->DnsSuffix = dnsSuffix;
1116             else
1117                 aa->DnsSuffix = (WCHAR *)((BYTE*)dnsSuffix + dns_suffix_size - 2);
1118         }
1119         ret = ERROR_SUCCESS;
1120     }
1121     else
1122         ret = ERROR_BUFFER_OVERFLOW;
1123     *buflen = total_size;
1124
1125     TRACE("num adapters %u\n", table->numIndexes);
1126     HeapFree(GetProcessHeap(), 0, table);
1127     return ret;
1128 }
1129
1130 /******************************************************************
1131  *    GetBestInterface (IPHLPAPI.@)
1132  *
1133  * Get the interface, with the best route for the given IP address.
1134  *
1135  * PARAMS
1136  *  dwDestAddr     [In]  IP address to search the interface for
1137  *  pdwBestIfIndex [Out] found best interface
1138  *
1139  * RETURNS
1140  *  Success: NO_ERROR
1141  *  Failure: error code from winerror.h
1142  */
1143 DWORD WINAPI GetBestInterface(IPAddr dwDestAddr, PDWORD pdwBestIfIndex)
1144 {
1145     struct WS_sockaddr_in sa_in;
1146     memset(&sa_in, 0, sizeof(sa_in));
1147     sa_in.sin_family = AF_INET;
1148     sa_in.sin_addr.S_un.S_addr = dwDestAddr;
1149     return GetBestInterfaceEx((struct WS_sockaddr *)&sa_in, pdwBestIfIndex);
1150 }
1151
1152 /******************************************************************
1153  *    GetBestInterfaceEx (IPHLPAPI.@)
1154  *
1155  * Get the interface, with the best route for the given IP address.
1156  *
1157  * PARAMS
1158  *  dwDestAddr     [In]  IP address to search the interface for
1159  *  pdwBestIfIndex [Out] found best interface
1160  *
1161  * RETURNS
1162  *  Success: NO_ERROR
1163  *  Failure: error code from winerror.h
1164  */
1165 DWORD WINAPI GetBestInterfaceEx(struct WS_sockaddr *pDestAddr, PDWORD pdwBestIfIndex)
1166 {
1167   DWORD ret;
1168
1169   TRACE("pDestAddr %p, pdwBestIfIndex %p\n", pDestAddr, pdwBestIfIndex);
1170   if (!pDestAddr || !pdwBestIfIndex)
1171     ret = ERROR_INVALID_PARAMETER;
1172   else {
1173     MIB_IPFORWARDROW ipRow;
1174
1175     if (pDestAddr->sa_family == AF_INET) {
1176       ret = GetBestRoute(((struct WS_sockaddr_in *)pDestAddr)->sin_addr.S_un.S_addr, 0, &ipRow);
1177       if (ret == ERROR_SUCCESS)
1178         *pdwBestIfIndex = ipRow.dwForwardIfIndex;
1179     } else {
1180       FIXME("address family %d not supported\n", pDestAddr->sa_family);
1181       ret = ERROR_NOT_SUPPORTED;
1182     }
1183   }
1184   TRACE("returning %d\n", ret);
1185   return ret;
1186 }
1187
1188
1189 /******************************************************************
1190  *    GetBestRoute (IPHLPAPI.@)
1191  *
1192  * Get the best route for the given IP address.
1193  *
1194  * PARAMS
1195  *  dwDestAddr   [In]  IP address to search the best route for
1196  *  dwSourceAddr [In]  optional source IP address
1197  *  pBestRoute   [Out] found best route
1198  *
1199  * RETURNS
1200  *  Success: NO_ERROR
1201  *  Failure: error code from winerror.h
1202  */
1203 DWORD WINAPI GetBestRoute(DWORD dwDestAddr, DWORD dwSourceAddr, PMIB_IPFORWARDROW pBestRoute)
1204 {
1205   PMIB_IPFORWARDTABLE table;
1206   DWORD ret;
1207
1208   TRACE("dwDestAddr 0x%08x, dwSourceAddr 0x%08x, pBestRoute %p\n", dwDestAddr,
1209    dwSourceAddr, pBestRoute);
1210   if (!pBestRoute)
1211     return ERROR_INVALID_PARAMETER;
1212
1213   ret = AllocateAndGetIpForwardTableFromStack(&table, FALSE, GetProcessHeap(), 0);
1214   if (!ret) {
1215     DWORD ndx, matchedBits, matchedNdx = table->dwNumEntries;
1216
1217     for (ndx = 0, matchedBits = 0; ndx < table->dwNumEntries; ndx++) {
1218       if (table->table[ndx].u1.ForwardType != MIB_IPROUTE_TYPE_INVALID &&
1219        (dwDestAddr & table->table[ndx].dwForwardMask) ==
1220        (table->table[ndx].dwForwardDest & table->table[ndx].dwForwardMask)) {
1221         DWORD numShifts, mask;
1222
1223         for (numShifts = 0, mask = table->table[ndx].dwForwardMask;
1224          mask && mask & 1; mask >>= 1, numShifts++)
1225           ;
1226         if (numShifts > matchedBits) {
1227           matchedBits = numShifts;
1228           matchedNdx = ndx;
1229         }
1230         else if (!matchedBits) {
1231           matchedNdx = ndx;
1232         }
1233       }
1234     }
1235     if (matchedNdx < table->dwNumEntries) {
1236       memcpy(pBestRoute, &table->table[matchedNdx], sizeof(MIB_IPFORWARDROW));
1237       ret = ERROR_SUCCESS;
1238     }
1239     else {
1240       /* No route matches, which can happen if there's no default route. */
1241       ret = ERROR_HOST_UNREACHABLE;
1242     }
1243     HeapFree(GetProcessHeap(), 0, table);
1244   }
1245   TRACE("returning %d\n", ret);
1246   return ret;
1247 }
1248
1249
1250 /******************************************************************
1251  *    GetFriendlyIfIndex (IPHLPAPI.@)
1252  *
1253  * Get a "friendly" version of IfIndex, which is one that doesn't
1254  * have the top byte set.  Doesn't validate whether IfIndex is a valid
1255  * adapter index.
1256  *
1257  * PARAMS
1258  *  IfIndex [In] interface index to get the friendly one for
1259  *
1260  * RETURNS
1261  *  A friendly version of IfIndex.
1262  */
1263 DWORD WINAPI GetFriendlyIfIndex(DWORD IfIndex)
1264 {
1265   /* windows doesn't validate these, either, just makes sure the top byte is
1266      cleared.  I assume my ifenum module never gives an index with the top
1267      byte set. */
1268   TRACE("returning %d\n", IfIndex);
1269   return IfIndex;
1270 }
1271
1272
1273 /******************************************************************
1274  *    GetIfEntry (IPHLPAPI.@)
1275  *
1276  * Get information about an interface.
1277  *
1278  * PARAMS
1279  *  pIfRow [In/Out] In:  dwIndex of MIB_IFROW selects the interface.
1280  *                  Out: interface information
1281  *
1282  * RETURNS
1283  *  Success: NO_ERROR
1284  *  Failure: error code from winerror.h
1285  */
1286 DWORD WINAPI GetIfEntry(PMIB_IFROW pIfRow)
1287 {
1288   DWORD ret;
1289   char nameBuf[MAX_ADAPTER_NAME];
1290   char *name;
1291
1292   TRACE("pIfRow %p\n", pIfRow);
1293   if (!pIfRow)
1294     return ERROR_INVALID_PARAMETER;
1295
1296   name = getInterfaceNameByIndex(pIfRow->dwIndex, nameBuf);
1297   if (name) {
1298     ret = getInterfaceEntryByName(name, pIfRow);
1299     if (ret == NO_ERROR)
1300       ret = getInterfaceStatsByName(name, pIfRow);
1301   }
1302   else
1303     ret = ERROR_INVALID_DATA;
1304   TRACE("returning %d\n", ret);
1305   return ret;
1306 }
1307
1308
1309 static int IfTableSorter(const void *a, const void *b)
1310 {
1311   int ret;
1312
1313   if (a && b)
1314     ret = ((const MIB_IFROW*)a)->dwIndex - ((const MIB_IFROW*)b)->dwIndex;
1315   else
1316     ret = 0;
1317   return ret;
1318 }
1319
1320
1321 /******************************************************************
1322  *    GetIfTable (IPHLPAPI.@)
1323  *
1324  * Get a table of local interfaces.
1325  *
1326  * PARAMS
1327  *  pIfTable [Out]    buffer for local interfaces table
1328  *  pdwSize  [In/Out] length of output buffer
1329  *  bOrder   [In]     whether to sort the table
1330  *
1331  * RETURNS
1332  *  Success: NO_ERROR
1333  *  Failure: error code from winerror.h
1334  *
1335  * NOTES
1336  *  If pdwSize is less than required, the function will return
1337  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to the required byte
1338  *  size.
1339  *  If bOrder is true, the returned table will be sorted by interface index.
1340  */
1341 DWORD WINAPI GetIfTable(PMIB_IFTABLE pIfTable, PULONG pdwSize, BOOL bOrder)
1342 {
1343   DWORD ret;
1344
1345   TRACE("pIfTable %p, pdwSize %p, bOrder %d\n", pdwSize, pdwSize,
1346    (DWORD)bOrder);
1347   if (!pdwSize)
1348     ret = ERROR_INVALID_PARAMETER;
1349   else {
1350     DWORD numInterfaces = getNumInterfaces();
1351     ULONG size = sizeof(MIB_IFTABLE);
1352
1353     if (numInterfaces > 1)
1354       size += (numInterfaces - 1) * sizeof(MIB_IFROW);
1355     if (!pIfTable || *pdwSize < size) {
1356       *pdwSize = size;
1357       ret = ERROR_INSUFFICIENT_BUFFER;
1358     }
1359     else {
1360       InterfaceIndexTable *table = getInterfaceIndexTable();
1361
1362       if (table) {
1363         size = sizeof(MIB_IFTABLE);
1364         if (table->numIndexes > 1)
1365           size += (table->numIndexes - 1) * sizeof(MIB_IFROW);
1366         if (*pdwSize < size) {
1367           *pdwSize = size;
1368           ret = ERROR_INSUFFICIENT_BUFFER;
1369         }
1370         else {
1371           DWORD ndx;
1372
1373           *pdwSize = size;
1374           pIfTable->dwNumEntries = 0;
1375           for (ndx = 0; ndx < table->numIndexes; ndx++) {
1376             pIfTable->table[ndx].dwIndex = table->indexes[ndx];
1377             GetIfEntry(&pIfTable->table[ndx]);
1378             pIfTable->dwNumEntries++;
1379           }
1380           if (bOrder)
1381             qsort(pIfTable->table, pIfTable->dwNumEntries, sizeof(MIB_IFROW),
1382              IfTableSorter);
1383           ret = NO_ERROR;
1384         }
1385         HeapFree(GetProcessHeap(), 0, table);
1386       }
1387       else
1388         ret = ERROR_OUTOFMEMORY;
1389     }
1390   }
1391   TRACE("returning %d\n", ret);
1392   return ret;
1393 }
1394
1395
1396 /******************************************************************
1397  *    GetInterfaceInfo (IPHLPAPI.@)
1398  *
1399  * Get a list of network interface adapters.
1400  *
1401  * PARAMS
1402  *  pIfTable    [Out] buffer for interface adapters
1403  *  dwOutBufLen [Out] if buffer is too small, returns required size
1404  *
1405  * RETURNS
1406  *  Success: NO_ERROR
1407  *  Failure: error code from winerror.h
1408  *
1409  * BUGS
1410  *  MSDN states this should return non-loopback interfaces only.
1411  */
1412 DWORD WINAPI GetInterfaceInfo(PIP_INTERFACE_INFO pIfTable, PULONG dwOutBufLen)
1413 {
1414   DWORD ret;
1415
1416   TRACE("pIfTable %p, dwOutBufLen %p\n", pIfTable, dwOutBufLen);
1417   if (!dwOutBufLen)
1418     ret = ERROR_INVALID_PARAMETER;
1419   else {
1420     DWORD numInterfaces = getNumInterfaces();
1421     ULONG size = sizeof(IP_INTERFACE_INFO);
1422
1423     if (numInterfaces > 1)
1424       size += (numInterfaces - 1) * sizeof(IP_ADAPTER_INDEX_MAP);
1425     if (!pIfTable || *dwOutBufLen < size) {
1426       *dwOutBufLen = size;
1427       ret = ERROR_INSUFFICIENT_BUFFER;
1428     }
1429     else {
1430       InterfaceIndexTable *table = getInterfaceIndexTable();
1431
1432       if (table) {
1433         size = sizeof(IP_INTERFACE_INFO);
1434         if (table->numIndexes > 1)
1435           size += (table->numIndexes - 1) * sizeof(IP_ADAPTER_INDEX_MAP);
1436         if (*dwOutBufLen < size) {
1437           *dwOutBufLen = size;
1438           ret = ERROR_INSUFFICIENT_BUFFER;
1439         }
1440         else {
1441           DWORD ndx;
1442           char nameBuf[MAX_ADAPTER_NAME];
1443
1444           *dwOutBufLen = size;
1445           pIfTable->NumAdapters = 0;
1446           for (ndx = 0; ndx < table->numIndexes; ndx++) {
1447             const char *walker, *name;
1448             WCHAR *assigner;
1449
1450             pIfTable->Adapter[ndx].Index = table->indexes[ndx];
1451             name = getInterfaceNameByIndex(table->indexes[ndx], nameBuf);
1452             for (walker = name, assigner = pIfTable->Adapter[ndx].Name;
1453              walker && *walker &&
1454              assigner - pIfTable->Adapter[ndx].Name < MAX_ADAPTER_NAME - 1;
1455              walker++, assigner++)
1456               *assigner = *walker;
1457             *assigner = 0;
1458             pIfTable->NumAdapters++;
1459           }
1460           ret = NO_ERROR;
1461         }
1462         HeapFree(GetProcessHeap(), 0, table);
1463       }
1464       else
1465         ret = ERROR_OUTOFMEMORY;
1466     }
1467   }
1468   TRACE("returning %d\n", ret);
1469   return ret;
1470 }
1471
1472
1473 /******************************************************************
1474  *    GetIpAddrTable (IPHLPAPI.@)
1475  *
1476  * Get interface-to-IP address mapping table.
1477  *
1478  * PARAMS
1479  *  pIpAddrTable [Out]    buffer for mapping table
1480  *  pdwSize      [In/Out] length of output buffer
1481  *  bOrder       [In]     whether to sort the table
1482  *
1483  * RETURNS
1484  *  Success: NO_ERROR
1485  *  Failure: error code from winerror.h
1486  *
1487  * NOTES
1488  *  If pdwSize is less than required, the function will return
1489  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to the required byte
1490  *  size.
1491  *  If bOrder is true, the returned table will be sorted by the next hop and
1492  *  an assortment of arbitrary parameters.
1493  */
1494 DWORD WINAPI GetIpAddrTable(PMIB_IPADDRTABLE pIpAddrTable, PULONG pdwSize, BOOL bOrder)
1495 {
1496   DWORD ret;
1497
1498   TRACE("pIpAddrTable %p, pdwSize %p, bOrder %d\n", pIpAddrTable, pdwSize,
1499    (DWORD)bOrder);
1500   if (!pdwSize)
1501     ret = ERROR_INVALID_PARAMETER;
1502   else {
1503     PMIB_IPADDRTABLE table;
1504
1505     ret = getIPAddrTable(&table, GetProcessHeap(), 0);
1506     if (ret == NO_ERROR)
1507     {
1508       ULONG size = FIELD_OFFSET(MIB_IPADDRTABLE, table[table->dwNumEntries]);
1509
1510       if (!pIpAddrTable || *pdwSize < size) {
1511         *pdwSize = size;
1512         ret = ERROR_INSUFFICIENT_BUFFER;
1513       }
1514       else {
1515         *pdwSize = size;
1516         memcpy(pIpAddrTable, table, size);
1517         if (bOrder)
1518           qsort(pIpAddrTable->table, pIpAddrTable->dwNumEntries,
1519            sizeof(MIB_IPADDRROW), IpAddrTableSorter);
1520         ret = NO_ERROR;
1521       }
1522       HeapFree(GetProcessHeap(), 0, table);
1523     }
1524   }
1525   TRACE("returning %d\n", ret);
1526   return ret;
1527 }
1528
1529
1530 /******************************************************************
1531  *    GetIpForwardTable (IPHLPAPI.@)
1532  *
1533  * Get the route table.
1534  *
1535  * PARAMS
1536  *  pIpForwardTable [Out]    buffer for route table
1537  *  pdwSize         [In/Out] length of output buffer
1538  *  bOrder          [In]     whether to sort the table
1539  *
1540  * RETURNS
1541  *  Success: NO_ERROR
1542  *  Failure: error code from winerror.h
1543  *
1544  * NOTES
1545  *  If pdwSize is less than required, the function will return
1546  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to the required byte
1547  *  size.
1548  *  If bOrder is true, the returned table will be sorted by the next hop and
1549  *  an assortment of arbitrary parameters.
1550  */
1551 DWORD WINAPI GetIpForwardTable(PMIB_IPFORWARDTABLE pIpForwardTable, PULONG pdwSize, BOOL bOrder)
1552 {
1553     DWORD ret;
1554     PMIB_IPFORWARDTABLE table;
1555
1556     TRACE("pIpForwardTable %p, pdwSize %p, bOrder %d\n", pIpForwardTable, pdwSize, bOrder);
1557
1558     if (!pdwSize) return ERROR_INVALID_PARAMETER;
1559
1560     ret = AllocateAndGetIpForwardTableFromStack(&table, bOrder, GetProcessHeap(), 0);
1561     if (!ret) {
1562         DWORD size = FIELD_OFFSET( MIB_IPFORWARDTABLE, table[table->dwNumEntries] );
1563         if (!pIpForwardTable || *pdwSize < size) {
1564           *pdwSize = size;
1565           ret = ERROR_INSUFFICIENT_BUFFER;
1566         }
1567         else {
1568           *pdwSize = size;
1569           memcpy(pIpForwardTable, table, size);
1570         }
1571         HeapFree(GetProcessHeap(), 0, table);
1572     }
1573     TRACE("returning %d\n", ret);
1574     return ret;
1575 }
1576
1577
1578 /******************************************************************
1579  *    GetIpNetTable (IPHLPAPI.@)
1580  *
1581  * Get the IP-to-physical address mapping table.
1582  *
1583  * PARAMS
1584  *  pIpNetTable [Out]    buffer for mapping table
1585  *  pdwSize     [In/Out] length of output buffer
1586  *  bOrder      [In]     whether to sort the table
1587  *
1588  * RETURNS
1589  *  Success: NO_ERROR
1590  *  Failure: error code from winerror.h
1591  *
1592  * NOTES
1593  *  If pdwSize is less than required, the function will return
1594  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to the required byte
1595  *  size.
1596  *  If bOrder is true, the returned table will be sorted by IP address.
1597  */
1598 DWORD WINAPI GetIpNetTable(PMIB_IPNETTABLE pIpNetTable, PULONG pdwSize, BOOL bOrder)
1599 {
1600     DWORD ret;
1601     PMIB_IPNETTABLE table;
1602
1603     TRACE("pIpNetTable %p, pdwSize %p, bOrder %d\n", pIpNetTable, pdwSize, bOrder);
1604
1605     if (!pdwSize) return ERROR_INVALID_PARAMETER;
1606
1607     ret = AllocateAndGetIpNetTableFromStack( &table, bOrder, GetProcessHeap(), 0 );
1608     if (!ret) {
1609         DWORD size = FIELD_OFFSET( MIB_IPNETTABLE, table[table->dwNumEntries] );
1610         if (!pIpNetTable || *pdwSize < size) {
1611           *pdwSize = size;
1612           ret = ERROR_INSUFFICIENT_BUFFER;
1613         }
1614         else {
1615           *pdwSize = size;
1616           memcpy(pIpNetTable, table, size);
1617         }
1618         HeapFree(GetProcessHeap(), 0, table);
1619     }
1620     TRACE("returning %d\n", ret);
1621     return ret;
1622 }
1623
1624 /* Gets the DNS server list into the list beginning at list.  Assumes that
1625  * a single server address may be placed at list if *len is at least
1626  * sizeof(IP_ADDR_STRING) long.  Otherwise, list->Next is set to firstDynamic,
1627  * and assumes that all remaining DNS servers are contiguously located
1628  * beginning at firstDynamic.  On input, *len is assumed to be the total number
1629  * of bytes available for all DNS servers, and is ignored if list is NULL.
1630  * On return, *len is set to the total number of bytes required for all DNS
1631  * servers.
1632  * Returns ERROR_BUFFER_OVERFLOW if *len is insufficient,
1633  * ERROR_SUCCESS otherwise.
1634  */
1635 static DWORD get_dns_server_list(PIP_ADDR_STRING list,
1636  PIP_ADDR_STRING firstDynamic, DWORD *len)
1637 {
1638   DWORD size;
1639
1640   initialise_resolver();
1641   size = _res.nscount * sizeof(IP_ADDR_STRING);
1642   if (!list || *len < size) {
1643     *len = size;
1644     return ERROR_BUFFER_OVERFLOW;
1645   }
1646   *len = size;
1647   if (_res.nscount > 0) {
1648     PIP_ADDR_STRING ptr;
1649     int i;
1650
1651     for (i = 0, ptr = list; i < _res.nscount && ptr; i++, ptr = ptr->Next) {
1652       toIPAddressString(_res.nsaddr_list[i].sin_addr.s_addr,
1653        ptr->IpAddress.String);
1654       if (i == _res.nscount - 1)
1655         ptr->Next = NULL;
1656       else if (i == 0)
1657         ptr->Next = firstDynamic;
1658       else
1659         ptr->Next = (PIP_ADDR_STRING)((PBYTE)ptr + sizeof(IP_ADDR_STRING));
1660     }
1661   }
1662   return ERROR_SUCCESS;
1663 }
1664
1665 /******************************************************************
1666  *    GetNetworkParams (IPHLPAPI.@)
1667  *
1668  * Get the network parameters for the local computer.
1669  *
1670  * PARAMS
1671  *  pFixedInfo [Out]    buffer for network parameters
1672  *  pOutBufLen [In/Out] length of output buffer
1673  *
1674  * RETURNS
1675  *  Success: NO_ERROR
1676  *  Failure: error code from winerror.h
1677  *
1678  * NOTES
1679  *  If pOutBufLen is less than required, the function will return
1680  *  ERROR_INSUFFICIENT_BUFFER, and pOutBufLen will be set to the required byte
1681  *  size.
1682  */
1683 DWORD WINAPI GetNetworkParams(PFIXED_INFO pFixedInfo, PULONG pOutBufLen)
1684 {
1685   DWORD ret, size, serverListSize;
1686   LONG regReturn;
1687   HKEY hKey;
1688
1689   TRACE("pFixedInfo %p, pOutBufLen %p\n", pFixedInfo, pOutBufLen);
1690   if (!pOutBufLen)
1691     return ERROR_INVALID_PARAMETER;
1692
1693   get_dns_server_list(NULL, NULL, &serverListSize);
1694   size = sizeof(FIXED_INFO) + serverListSize - sizeof(IP_ADDR_STRING);
1695   if (!pFixedInfo || *pOutBufLen < size) {
1696     *pOutBufLen = size;
1697     return ERROR_BUFFER_OVERFLOW;
1698   }
1699
1700   memset(pFixedInfo, 0, size);
1701   size = sizeof(pFixedInfo->HostName);
1702   GetComputerNameExA(ComputerNameDnsHostname, pFixedInfo->HostName, &size);
1703   size = sizeof(pFixedInfo->DomainName);
1704   GetComputerNameExA(ComputerNameDnsDomain, pFixedInfo->DomainName, &size);
1705   get_dns_server_list(&pFixedInfo->DnsServerList,
1706    (PIP_ADDR_STRING)((BYTE *)pFixedInfo + sizeof(FIXED_INFO)),
1707    &serverListSize);
1708   /* Assume the first DNS server in the list is the "current" DNS server: */
1709   pFixedInfo->CurrentDnsServer = &pFixedInfo->DnsServerList;
1710   pFixedInfo->NodeType = HYBRID_NODETYPE;
1711   regReturn = RegOpenKeyExA(HKEY_LOCAL_MACHINE,
1712    "SYSTEM\\CurrentControlSet\\Services\\VxD\\MSTCP", 0, KEY_READ, &hKey);
1713   if (regReturn != ERROR_SUCCESS)
1714     regReturn = RegOpenKeyExA(HKEY_LOCAL_MACHINE,
1715      "SYSTEM\\CurrentControlSet\\Services\\NetBT\\Parameters", 0, KEY_READ,
1716      &hKey);
1717   if (regReturn == ERROR_SUCCESS)
1718   {
1719     DWORD size = sizeof(pFixedInfo->ScopeId);
1720
1721     RegQueryValueExA(hKey, "ScopeID", NULL, NULL, (LPBYTE)pFixedInfo->ScopeId, &size);
1722     RegCloseKey(hKey);
1723   }
1724
1725   /* FIXME: can check whether routing's enabled in /proc/sys/net/ipv4/ip_forward
1726      I suppose could also check for a listener on port 53 to set EnableDns */
1727   ret = NO_ERROR;
1728   TRACE("returning %d\n", ret);
1729   return ret;
1730 }
1731
1732
1733 /******************************************************************
1734  *    GetNumberOfInterfaces (IPHLPAPI.@)
1735  *
1736  * Get the number of interfaces.
1737  *
1738  * PARAMS
1739  *  pdwNumIf [Out] number of interfaces
1740  *
1741  * RETURNS
1742  *  NO_ERROR on success, ERROR_INVALID_PARAMETER if pdwNumIf is NULL.
1743  */
1744 DWORD WINAPI GetNumberOfInterfaces(PDWORD pdwNumIf)
1745 {
1746   DWORD ret;
1747
1748   TRACE("pdwNumIf %p\n", pdwNumIf);
1749   if (!pdwNumIf)
1750     ret = ERROR_INVALID_PARAMETER;
1751   else {
1752     *pdwNumIf = getNumInterfaces();
1753     ret = NO_ERROR;
1754   }
1755   TRACE("returning %d\n", ret);
1756   return ret;
1757 }
1758
1759
1760 /******************************************************************
1761  *    GetPerAdapterInfo (IPHLPAPI.@)
1762  *
1763  * Get information about an adapter corresponding to an interface.
1764  *
1765  * PARAMS
1766  *  IfIndex         [In]     interface info
1767  *  pPerAdapterInfo [Out]    buffer for per adapter info
1768  *  pOutBufLen      [In/Out] length of output buffer
1769  *
1770  * RETURNS
1771  *  Success: NO_ERROR
1772  *  Failure: error code from winerror.h
1773  */
1774 DWORD WINAPI GetPerAdapterInfo(ULONG IfIndex, PIP_PER_ADAPTER_INFO pPerAdapterInfo, PULONG pOutBufLen)
1775 {
1776   ULONG bytesNeeded = sizeof(IP_PER_ADAPTER_INFO), serverListSize = 0;
1777   DWORD ret = NO_ERROR;
1778
1779   TRACE("(IfIndex %d, pPerAdapterInfo %p, pOutBufLen %p)\n", IfIndex, pPerAdapterInfo, pOutBufLen);
1780
1781   if (!pOutBufLen) return ERROR_INVALID_PARAMETER;
1782
1783   if (!isIfIndexLoopback(IfIndex)) {
1784     get_dns_server_list(NULL, NULL, &serverListSize);
1785     if (serverListSize > sizeof(IP_ADDR_STRING))
1786       bytesNeeded += serverListSize - sizeof(IP_ADDR_STRING);
1787   }
1788   if (!pPerAdapterInfo || *pOutBufLen < bytesNeeded)
1789   {
1790     *pOutBufLen = bytesNeeded;
1791     return ERROR_BUFFER_OVERFLOW;
1792   }
1793
1794   memset(pPerAdapterInfo, 0, bytesNeeded);
1795   if (!isIfIndexLoopback(IfIndex)) {
1796     ret = get_dns_server_list(&pPerAdapterInfo->DnsServerList,
1797      (PIP_ADDR_STRING)((PBYTE)pPerAdapterInfo + sizeof(IP_PER_ADAPTER_INFO)),
1798      &serverListSize);
1799     /* Assume the first DNS server in the list is the "current" DNS server: */
1800     pPerAdapterInfo->CurrentDnsServer = &pPerAdapterInfo->DnsServerList;
1801   }
1802   return ret;
1803 }
1804
1805
1806 /******************************************************************
1807  *    GetRTTAndHopCount (IPHLPAPI.@)
1808  *
1809  * Get round-trip time (RTT) and hop count.
1810  *
1811  * PARAMS
1812  *
1813  *  DestIpAddress [In]  destination address to get the info for
1814  *  HopCount      [Out] retrieved hop count
1815  *  MaxHops       [In]  maximum hops to search for the destination
1816  *  RTT           [Out] RTT in milliseconds
1817  *
1818  * RETURNS
1819  *  Success: TRUE
1820  *  Failure: FALSE
1821  *
1822  * FIXME
1823  *  Stub, returns FALSE.
1824  */
1825 BOOL WINAPI GetRTTAndHopCount(IPAddr DestIpAddress, PULONG HopCount, ULONG MaxHops, PULONG RTT)
1826 {
1827   FIXME("(DestIpAddress 0x%08x, HopCount %p, MaxHops %d, RTT %p): stub\n",
1828    DestIpAddress, HopCount, MaxHops, RTT);
1829   return FALSE;
1830 }
1831
1832
1833 /******************************************************************
1834  *    GetTcpTable (IPHLPAPI.@)
1835  *
1836  * Get the table of active TCP connections.
1837  *
1838  * PARAMS
1839  *  pTcpTable [Out]    buffer for TCP connections table
1840  *  pdwSize   [In/Out] length of output buffer
1841  *  bOrder    [In]     whether to order the table
1842  *
1843  * RETURNS
1844  *  Success: NO_ERROR
1845  *  Failure: error code from winerror.h
1846  *
1847  * NOTES
1848  *  If pdwSize is less than required, the function will return
1849  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to
1850  *  the required byte size.
1851  *  If bOrder is true, the returned table will be sorted, first by
1852  *  local address and port number, then by remote address and port
1853  *  number.
1854  */
1855 DWORD WINAPI GetTcpTable(PMIB_TCPTABLE pTcpTable, PDWORD pdwSize, BOOL bOrder)
1856 {
1857     TRACE("pTcpTable %p, pdwSize %p, bOrder %d\n", pTcpTable, pdwSize, bOrder);
1858     return GetExtendedTcpTable(pTcpTable, pdwSize, bOrder, AF_INET, TCP_TABLE_BASIC_ALL, 0);
1859 }
1860
1861 /******************************************************************
1862  *    GetExtendedTcpTable (IPHLPAPI.@)
1863  */
1864 DWORD WINAPI GetExtendedTcpTable(PVOID pTcpTable, PDWORD pdwSize, BOOL bOrder,
1865                                  ULONG ulAf, TCP_TABLE_CLASS TableClass, ULONG Reserved)
1866 {
1867     DWORD ret, size;
1868     void *table;
1869
1870     TRACE("pTcpTable %p, pdwSize %p, bOrder %d, ulAf %u, TableClass %u, Reserved %u\n",
1871            pTcpTable, pdwSize, bOrder, ulAf, TableClass, Reserved);
1872
1873     if (!pdwSize) return ERROR_INVALID_PARAMETER;
1874
1875     if (ulAf != AF_INET ||
1876         (TableClass != TCP_TABLE_BASIC_ALL && TableClass != TCP_TABLE_OWNER_PID_ALL))
1877     {
1878         FIXME("ulAf = %u, TableClass = %u not supported\n", ulAf, TableClass);
1879         return ERROR_NOT_SUPPORTED;
1880     }
1881     if ((ret = build_tcp_table(TableClass, &table, bOrder, GetProcessHeap(), 0, &size)))
1882         return ret;
1883
1884     if (!pTcpTable || *pdwSize < size)
1885     {
1886         *pdwSize = size;
1887         ret = ERROR_INSUFFICIENT_BUFFER;
1888     }
1889     else
1890     {
1891         *pdwSize = size;
1892         memcpy(pTcpTable, table, size);
1893     }
1894     HeapFree(GetProcessHeap(), 0, table);
1895     return ret;
1896 }
1897
1898 /******************************************************************
1899  *    GetUdpTable (IPHLPAPI.@)
1900  *
1901  * Get a table of active UDP connections.
1902  *
1903  * PARAMS
1904  *  pUdpTable [Out]    buffer for UDP connections table
1905  *  pdwSize   [In/Out] length of output buffer
1906  *  bOrder    [In]     whether to order the table
1907  *
1908  * RETURNS
1909  *  Success: NO_ERROR
1910  *  Failure: error code from winerror.h
1911  *
1912  * NOTES
1913  *  If pdwSize is less than required, the function will return
1914  *  ERROR_INSUFFICIENT_BUFFER, and *pdwSize will be set to the
1915  *  required byte size.
1916  *  If bOrder is true, the returned table will be sorted, first by
1917  *  local address, then by local port number.
1918  */
1919 DWORD WINAPI GetUdpTable(PMIB_UDPTABLE pUdpTable, PDWORD pdwSize, BOOL bOrder)
1920 {
1921     return GetExtendedUdpTable(pUdpTable, pdwSize, bOrder, AF_INET, UDP_TABLE_BASIC, 0);
1922 }
1923
1924 /******************************************************************
1925  *    GetExtendedUdpTable (IPHLPAPI.@)
1926  */
1927 DWORD WINAPI GetExtendedUdpTable(PVOID pUdpTable, PDWORD pdwSize, BOOL bOrder,
1928                                  ULONG ulAf, UDP_TABLE_CLASS TableClass, ULONG Reserved)
1929 {
1930     DWORD ret, size;
1931     void *table;
1932
1933     TRACE("pUdpTable %p, pdwSize %p, bOrder %d, ulAf %u, TableClass %u, Reserved %u\n",
1934            pUdpTable, pdwSize, bOrder, ulAf, TableClass, Reserved);
1935
1936     if (!pdwSize) return ERROR_INVALID_PARAMETER;
1937
1938     if (ulAf != AF_INET ||
1939         (TableClass != UDP_TABLE_BASIC && TableClass != UDP_TABLE_OWNER_PID &&
1940          TableClass != UDP_TABLE_OWNER_MODULE))
1941     {
1942         FIXME("ulAf = %u, TableClass = %u not supported\n", ulAf, TableClass);
1943         return ERROR_NOT_SUPPORTED;
1944     }
1945     if (TableClass == UDP_TABLE_OWNER_MODULE)
1946         FIXME("UDP_TABLE_OWNER_MODULE not fully supported\n");
1947
1948     if ((ret = build_udp_table(TableClass, &table, bOrder, GetProcessHeap(), 0, &size)))
1949         return ret;
1950
1951     if (!pUdpTable || *pdwSize < size)
1952     {
1953         *pdwSize = size;
1954         ret = ERROR_INSUFFICIENT_BUFFER;
1955     }
1956     else
1957     {
1958         *pdwSize = size;
1959         memcpy(pUdpTable, table, size);
1960     }
1961     HeapFree(GetProcessHeap(), 0, table);
1962     return ret;
1963 }
1964
1965 /******************************************************************
1966  *    GetUniDirectionalAdapterInfo (IPHLPAPI.@)
1967  *
1968  * This is a Win98-only function to get information on "unidirectional"
1969  * adapters.  Since this is pretty nonsensical in other contexts, it
1970  * never returns anything.
1971  *
1972  * PARAMS
1973  *  pIPIfInfo   [Out] buffer for adapter infos
1974  *  dwOutBufLen [Out] length of the output buffer
1975  *
1976  * RETURNS
1977  *  Success: NO_ERROR
1978  *  Failure: error code from winerror.h
1979  *
1980  * FIXME
1981  *  Stub, returns ERROR_NOT_SUPPORTED.
1982  */
1983 DWORD WINAPI GetUniDirectionalAdapterInfo(PIP_UNIDIRECTIONAL_ADAPTER_ADDRESS pIPIfInfo, PULONG dwOutBufLen)
1984 {
1985   TRACE("pIPIfInfo %p, dwOutBufLen %p\n", pIPIfInfo, dwOutBufLen);
1986   /* a unidirectional adapter?? not bloody likely! */
1987   return ERROR_NOT_SUPPORTED;
1988 }
1989
1990
1991 /******************************************************************
1992  *    IpReleaseAddress (IPHLPAPI.@)
1993  *
1994  * Release an IP obtained through DHCP,
1995  *
1996  * PARAMS
1997  *  AdapterInfo [In] adapter to release IP address
1998  *
1999  * RETURNS
2000  *  Success: NO_ERROR
2001  *  Failure: error code from winerror.h
2002  *
2003  * NOTES
2004  *  Since GetAdaptersInfo never returns adapters that have DHCP enabled,
2005  *  this function does nothing.
2006  *
2007  * FIXME
2008  *  Stub, returns ERROR_NOT_SUPPORTED.
2009  */
2010 DWORD WINAPI IpReleaseAddress(PIP_ADAPTER_INDEX_MAP AdapterInfo)
2011 {
2012   FIXME("Stub AdapterInfo %p\n", AdapterInfo);
2013   return ERROR_NOT_SUPPORTED;
2014 }
2015
2016
2017 /******************************************************************
2018  *    IpRenewAddress (IPHLPAPI.@)
2019  *
2020  * Renew an IP obtained through DHCP.
2021  *
2022  * PARAMS
2023  *  AdapterInfo [In] adapter to renew IP address
2024  *
2025  * RETURNS
2026  *  Success: NO_ERROR
2027  *  Failure: error code from winerror.h
2028  *
2029  * NOTES
2030  *  Since GetAdaptersInfo never returns adapters that have DHCP enabled,
2031  *  this function does nothing.
2032  *
2033  * FIXME
2034  *  Stub, returns ERROR_NOT_SUPPORTED.
2035  */
2036 DWORD WINAPI IpRenewAddress(PIP_ADAPTER_INDEX_MAP AdapterInfo)
2037 {
2038   FIXME("Stub AdapterInfo %p\n", AdapterInfo);
2039   return ERROR_NOT_SUPPORTED;
2040 }
2041
2042
2043 /******************************************************************
2044  *    NotifyAddrChange (IPHLPAPI.@)
2045  *
2046  * Notify caller whenever the ip-interface map is changed.
2047  *
2048  * PARAMS
2049  *  Handle     [Out] handle usable in asynchronous notification
2050  *  overlapped [In]  overlapped structure that notifies the caller
2051  *
2052  * RETURNS
2053  *  Success: NO_ERROR
2054  *  Failure: error code from winerror.h
2055  *
2056  * FIXME
2057  *  Stub, returns ERROR_NOT_SUPPORTED.
2058  */
2059 DWORD WINAPI NotifyAddrChange(PHANDLE Handle, LPOVERLAPPED overlapped)
2060 {
2061   FIXME("(Handle %p, overlapped %p): stub\n", Handle, overlapped);
2062   if (Handle) *Handle = INVALID_HANDLE_VALUE;
2063   if (overlapped) ((IO_STATUS_BLOCK *) overlapped)->u.Status = STATUS_PENDING;
2064   return ERROR_IO_PENDING;
2065 }
2066
2067
2068 /******************************************************************
2069  *    NotifyRouteChange (IPHLPAPI.@)
2070  *
2071  * Notify caller whenever the ip routing table is changed.
2072  *
2073  * PARAMS
2074  *  Handle     [Out] handle usable in asynchronous notification
2075  *  overlapped [In]  overlapped structure that notifies the caller
2076  *
2077  * RETURNS
2078  *  Success: NO_ERROR
2079  *  Failure: error code from winerror.h
2080  *
2081  * FIXME
2082  *  Stub, returns ERROR_NOT_SUPPORTED.
2083  */
2084 DWORD WINAPI NotifyRouteChange(PHANDLE Handle, LPOVERLAPPED overlapped)
2085 {
2086   FIXME("(Handle %p, overlapped %p): stub\n", Handle, overlapped);
2087   return ERROR_NOT_SUPPORTED;
2088 }
2089
2090
2091 /******************************************************************
2092  *    SendARP (IPHLPAPI.@)
2093  *
2094  * Send an ARP request.
2095  *
2096  * PARAMS
2097  *  DestIP     [In]     attempt to obtain this IP
2098  *  SrcIP      [In]     optional sender IP address
2099  *  pMacAddr   [Out]    buffer for the mac address
2100  *  PhyAddrLen [In/Out] length of the output buffer
2101  *
2102  * RETURNS
2103  *  Success: NO_ERROR
2104  *  Failure: error code from winerror.h
2105  *
2106  * FIXME
2107  *  Stub, returns ERROR_NOT_SUPPORTED.
2108  */
2109 DWORD WINAPI SendARP(IPAddr DestIP, IPAddr SrcIP, PULONG pMacAddr, PULONG PhyAddrLen)
2110 {
2111   FIXME("(DestIP 0x%08x, SrcIP 0x%08x, pMacAddr %p, PhyAddrLen %p): stub\n",
2112    DestIP, SrcIP, pMacAddr, PhyAddrLen);
2113   return ERROR_NOT_SUPPORTED;
2114 }
2115
2116
2117 /******************************************************************
2118  *    SetIfEntry (IPHLPAPI.@)
2119  *
2120  * Set the administrative status of an interface.
2121  *
2122  * PARAMS
2123  *  pIfRow [In] dwAdminStatus member specifies the new status.
2124  *
2125  * RETURNS
2126  *  Success: NO_ERROR
2127  *  Failure: error code from winerror.h
2128  *
2129  * FIXME
2130  *  Stub, returns ERROR_NOT_SUPPORTED.
2131  */
2132 DWORD WINAPI SetIfEntry(PMIB_IFROW pIfRow)
2133 {
2134   FIXME("(pIfRow %p): stub\n", pIfRow);
2135   /* this is supposed to set an interface administratively up or down.
2136      Could do SIOCSIFFLAGS and set/clear IFF_UP, but, not sure I want to, and
2137      this sort of down is indistinguishable from other sorts of down (e.g. no
2138      link). */
2139   return ERROR_NOT_SUPPORTED;
2140 }
2141
2142
2143 /******************************************************************
2144  *    SetIpForwardEntry (IPHLPAPI.@)
2145  *
2146  * Modify an existing route.
2147  *
2148  * PARAMS
2149  *  pRoute [In] route with the new information
2150  *
2151  * RETURNS
2152  *  Success: NO_ERROR
2153  *  Failure: error code from winerror.h
2154  *
2155  * FIXME
2156  *  Stub, returns NO_ERROR.
2157  */
2158 DWORD WINAPI SetIpForwardEntry(PMIB_IPFORWARDROW pRoute)
2159 {
2160   FIXME("(pRoute %p): stub\n", pRoute);
2161   /* this is to add a route entry, how's it distinguishable from
2162      CreateIpForwardEntry?
2163      could use SIOCADDRT, not sure I want to */
2164   return 0;
2165 }
2166
2167
2168 /******************************************************************
2169  *    SetIpNetEntry (IPHLPAPI.@)
2170  *
2171  * Modify an existing ARP entry.
2172  *
2173  * PARAMS
2174  *  pArpEntry [In] ARP entry with the new information
2175  *
2176  * RETURNS
2177  *  Success: NO_ERROR
2178  *  Failure: error code from winerror.h
2179  *
2180  * FIXME
2181  *  Stub, returns NO_ERROR.
2182  */
2183 DWORD WINAPI SetIpNetEntry(PMIB_IPNETROW pArpEntry)
2184 {
2185   FIXME("(pArpEntry %p): stub\n", pArpEntry);
2186   /* same as CreateIpNetEntry here, could use SIOCSARP, not sure I want to */
2187   return 0;
2188 }
2189
2190
2191 /******************************************************************
2192  *    SetIpStatistics (IPHLPAPI.@)
2193  *
2194  * Toggle IP forwarding and det the default TTL value.
2195  *
2196  * PARAMS
2197  *  pIpStats [In] IP statistics with the new information
2198  *
2199  * RETURNS
2200  *  Success: NO_ERROR
2201  *  Failure: error code from winerror.h
2202  *
2203  * FIXME
2204  *  Stub, returns NO_ERROR.
2205  */
2206 DWORD WINAPI SetIpStatistics(PMIB_IPSTATS pIpStats)
2207 {
2208   FIXME("(pIpStats %p): stub\n", pIpStats);
2209   return 0;
2210 }
2211
2212
2213 /******************************************************************
2214  *    SetIpTTL (IPHLPAPI.@)
2215  *
2216  * Set the default TTL value.
2217  *
2218  * PARAMS
2219  *  nTTL [In] new TTL value
2220  *
2221  * RETURNS
2222  *  Success: NO_ERROR
2223  *  Failure: error code from winerror.h
2224  *
2225  * FIXME
2226  *  Stub, returns NO_ERROR.
2227  */
2228 DWORD WINAPI SetIpTTL(UINT nTTL)
2229 {
2230   FIXME("(nTTL %d): stub\n", nTTL);
2231   /* could echo nTTL > /proc/net/sys/net/ipv4/ip_default_ttl, not sure I
2232      want to.  Could map EACCESS to ERROR_ACCESS_DENIED, I suppose */
2233   return 0;
2234 }
2235
2236
2237 /******************************************************************
2238  *    SetTcpEntry (IPHLPAPI.@)
2239  *
2240  * Set the state of a TCP connection.
2241  *
2242  * PARAMS
2243  *  pTcpRow [In] specifies connection with new state
2244  *
2245  * RETURNS
2246  *  Success: NO_ERROR
2247  *  Failure: error code from winerror.h
2248  *
2249  * FIXME
2250  *  Stub, returns NO_ERROR.
2251  */
2252 DWORD WINAPI SetTcpEntry(PMIB_TCPROW pTcpRow)
2253 {
2254   FIXME("(pTcpRow %p): stub\n", pTcpRow);
2255   return 0;
2256 }
2257
2258
2259 /******************************************************************
2260  *    UnenableRouter (IPHLPAPI.@)
2261  *
2262  * Decrement the IP-forwarding reference count. Turn off IP-forwarding
2263  * if it reaches zero.
2264  *
2265  * PARAMS
2266  *  pOverlapped     [In/Out] should be the same as in EnableRouter()
2267  *  lpdwEnableCount [Out]    optional, receives reference count
2268  *
2269  * RETURNS
2270  *  Success: NO_ERROR
2271  *  Failure: error code from winerror.h
2272  *
2273  * FIXME
2274  *  Stub, returns ERROR_NOT_SUPPORTED.
2275  */
2276 DWORD WINAPI UnenableRouter(OVERLAPPED * pOverlapped, LPDWORD lpdwEnableCount)
2277 {
2278   FIXME("(pOverlapped %p, lpdwEnableCount %p): stub\n", pOverlapped,
2279    lpdwEnableCount);
2280   /* could echo "0" > /proc/net/sys/net/ipv4/ip_forward, not sure I want to
2281      could map EACCESS to ERROR_ACCESS_DENIED, I suppose
2282    */
2283   return ERROR_NOT_SUPPORTED;
2284 }
2285
2286 /******************************************************************
2287  *    PfCreateInterface (IPHLPAPI.@)
2288  */
2289 DWORD WINAPI PfCreateInterface(DWORD dwName, PFFORWARD_ACTION inAction, PFFORWARD_ACTION outAction,
2290         BOOL bUseLog, BOOL bMustBeUnique, INTERFACE_HANDLE *ppInterface)
2291 {
2292     FIXME("(%d %d %d %x %x %p) stub\n", dwName, inAction, outAction, bUseLog, bMustBeUnique, ppInterface);
2293     return ERROR_CALL_NOT_IMPLEMENTED;
2294 }
2295
2296 /******************************************************************
2297  *    GetTcpTable2 (IPHLPAPI.@)
2298  */
2299 ULONG WINAPI GetTcpTable2(PMIB_TCPTABLE2 table, PULONG size, BOOL order)
2300 {
2301     FIXME("pTcpTable2 %p, pdwSize %p, bOrder %d: stub\n", table, size, order);
2302     return ERROR_NOT_SUPPORTED;
2303 }
2304
2305 /******************************************************************
2306  *    GetTcp6Table (IPHLPAPI.@)
2307  */
2308 ULONG WINAPI GetTcp6Table(PMIB_TCP6TABLE table, PULONG size, BOOL order)
2309 {
2310     FIXME("pTcp6Table %p, size %p, order %d: stub\n", table, size, order);
2311     return ERROR_NOT_SUPPORTED;
2312 }
2313
2314 /******************************************************************
2315  *    GetTcp6Table2 (IPHLPAPI.@)
2316  */
2317 ULONG WINAPI GetTcp6Table2(PMIB_TCP6TABLE2 table, PULONG size, BOOL order)
2318 {
2319     FIXME("pTcp6Table2 %p, size %p, order %d: stub\n", table, size, order);
2320     return ERROR_NOT_SUPPORTED;
2321 }