dlls/wsock32/protocol.c

   1 /*
   2  * WSOCK32 specific functions
   3  *
   4  * Copyright (C) 2001 Stefan Leichter
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /* All we need are a couple constants for EnumProtocols. Once it is
  22  * moved to ws2_32 we may no longer need it
  23  */
  24 #define USE_WS_PREFIX
  25
  26 #include "config.h"
  27
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #include <sys/types.h>
  33 #ifdef HAVE_ARPA_INET_H
  34 #include <arpa/inet.h>
  35 #endif
  36 #ifdef HAVE_NETDB_H
  37 #include <netdb.h>
  38 #endif
  39
  40 #include "windef.h"
  41 #include "winbase.h"
  42 #include "winnls.h"
  43 #include "wtypes.h"
  44 #include "nspapi.h"
  45 #include "winsock2.h"
  46 #include "wsipx.h"
  47 #include "wshisotp.h"
  48
  49 #include "wine/unicode.h"
  50 #include "wine/debug.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(winsock);
  53
  54 /* name of the protocols
  55  */
  56 static const WCHAR NameIpx[]   = {'I', 'P', 'X', '\0'};
  57 static const WCHAR NameSpx[]   = {'S', 'P', 'X', '\0'};
  58 static const WCHAR NameSpxII[] = {'S', 'P', 'X', ' ', 'I', 'I', '\0'};
  59 static const WCHAR NameTcp[]   = {'T', 'C', 'P', '/', 'I', 'P', '\0'};
  60 static const WCHAR NameUdp[]   = {'U', 'D', 'P', '/', 'I', 'P', '\0'};
  61
  62 /*****************************************************************************
  63  *          WSOCK32_EnterSingleProtocol [internal]
  64  *
  65  *    enters the protocol informations of one given protocol into the
  66  *    given buffer. If the given buffer is too small only the required size for
  67  *    the protocols are returned.
  68  *
  69  * RETURNS
  70  *    The number of protocols entered into the buffer
  71  *
  72  * BUGS
  73  *    - only implemented for IPX, SPX, SPXII, TCP, UDP
  74  *    - there is no check that the operating system supports the returned
  75  *      protocols
  76  */
  77 static INT WSOCK32_EnterSingleProtocol( INT iProtocol,
  78                                         PROTOCOL_INFOA* lpBuffer,
  79                                         LPDWORD lpSize, BOOL unicode)
  80 { DWORD  dwLength = 0, dwOldSize = *lpSize;
  81   INT    iAnz = 1;
  82   const WCHAR* lpProtName = NULL;
  83
  84   *lpSize = sizeof( PROTOCOL_INFOA);
  85   switch (iProtocol) {
  86     case WS_IPPROTO_TCP :
  87         dwLength = (unicode) ? sizeof(WCHAR) * (strlenW(NameTcp)+1) :
  88                                WideCharToMultiByte( CP_ACP, 0, NameTcp, -1,
  89                                                     NULL, 0, NULL, NULL);
  90       break;
  91     case WS_IPPROTO_UDP :
  92         dwLength = (unicode) ? sizeof(WCHAR) * (strlenW(NameUdp)+1) :
  93                                WideCharToMultiByte( CP_ACP, 0, NameUdp, -1,
  94                                                     NULL, 0, NULL, NULL);
  95       break;
  96     case NSPROTO_IPX :
  97         dwLength = (unicode) ? sizeof(WCHAR) * (strlenW(NameIpx)+1) :
  98                                WideCharToMultiByte( CP_ACP, 0, NameIpx, -1,
  99                                                     NULL, 0, NULL, NULL);
 100       break;
 101     case NSPROTO_SPX :
 102         dwLength = (unicode) ? sizeof(WCHAR) * (strlenW(NameSpx)+1) :
 103                                WideCharToMultiByte( CP_ACP, 0, NameSpx, -1,
 104                                                     NULL, 0, NULL, NULL);
 105       break;
 106     case NSPROTO_SPXII :
 107         dwLength = (unicode) ? sizeof(WCHAR) * (strlenW(NameSpxII)+1) :
 108                                WideCharToMultiByte( CP_ACP, 0, NameSpxII, -1,
 109                                                     NULL, 0, NULL, NULL);
 110       break;
 111     default:
 112         *lpSize = 0;
 113         if ((iProtocol == ISOPROTO_TP4) || (iProtocol == NSPROTO_SPX))
 114           FIXME("Protocol <%s> not implemented\n",
 115                 (iProtocol == ISOPROTO_TP4) ? "ISOPROTO_TP4" : "NSPROTO_SPX");
 116         else
 117           FIXME("unknown Protocol <0x%08x>\n", iProtocol);
 118       break;
 119   }
 120   *lpSize += dwLength;
 121
 122   if ( !lpBuffer || !*lpSize || (*lpSize > dwOldSize))
 123      return 0;
 124
 125   memset( lpBuffer, 0, dwOldSize);
 126
 127   lpBuffer->lpProtocol = (LPSTR) &lpBuffer[ iAnz];
 128   lpBuffer->iProtocol  = iProtocol;
 129
 130   switch (iProtocol) {
 131     case WS_IPPROTO_TCP :
 132         lpBuffer->dwServiceFlags = XP_FRAGMENTATION      | XP_EXPEDITED_DATA     |
 133                                    XP_GRACEFUL_CLOSE     | XP_GUARANTEED_ORDER   |
 134                                    XP_GUARANTEED_DELIVERY;
 135         lpBuffer->iAddressFamily = WS_AF_INET;
 136         lpBuffer->iMaxSockAddr   = 0x10;  /* NT4 SP5 */
 137         lpBuffer->iMinSockAddr   = 0x10;  /* NT4 SP5 */
 138         lpBuffer->iSocketType    = WS_SOCK_STREAM;
 139         lpBuffer->dwMessageSize  = 0;
 140         lpProtName = NameTcp;
 141       break;
 142     case WS_IPPROTO_UDP :
 143         lpBuffer->dwServiceFlags = XP_FRAGMENTATION      | XP_SUPPORTS_BROADCAST |
 144                                    XP_SUPPORTS_MULTICAST | XP_MESSAGE_ORIENTED   |
 145                                    XP_CONNECTIONLESS;
 146         lpBuffer->iAddressFamily = WS_AF_INET;
 147         lpBuffer->iMaxSockAddr   = 0x10;  /* NT4 SP5 */
 148         lpBuffer->iMinSockAddr   = 0x10;  /* NT4 SP5 */
 149         lpBuffer->iSocketType    = WS_SOCK_DGRAM;
 150         lpBuffer->dwMessageSize  = 65457; /* NT4 SP5 */
 151         lpProtName = NameUdp;
 152       break;
 153     case NSPROTO_IPX :
 154         lpBuffer->dwServiceFlags = XP_FRAGMENTATION      | XP_SUPPORTS_BROADCAST |
 155                                    XP_SUPPORTS_MULTICAST | XP_MESSAGE_ORIENTED   |
 156                                    XP_CONNECTIONLESS;
 157         lpBuffer->iAddressFamily = WS_AF_IPX;
 158         lpBuffer->iMaxSockAddr   = 0x10;  /* NT4 SP5 */
 159         lpBuffer->iMinSockAddr   = 0x0e;  /* NT4 SP5 */
 160         lpBuffer->iSocketType    = WS_SOCK_DGRAM;
 161         lpBuffer->dwMessageSize  = 576;   /* NT4 SP5 */
 162         lpProtName = NameIpx;
 163       break;
 164     case NSPROTO_SPX :
 165         lpBuffer->dwServiceFlags = XP_FRAGMENTATION      |
 166                                    XP_PSEUDO_STREAM      | XP_MESSAGE_ORIENTED   |
 167                                    XP_GUARANTEED_ORDER   | XP_GUARANTEED_DELIVERY;
 168         lpBuffer->iAddressFamily = WS_AF_IPX;
 169         lpBuffer->iMaxSockAddr   = 0x10;  /* NT4 SP5 */
 170         lpBuffer->iMinSockAddr   = 0x0e;  /* NT4 SP5 */
 171         lpBuffer->iSocketType    = 5;
 172         lpBuffer->dwMessageSize  = -1;    /* NT4 SP5 */
 173         lpProtName = NameSpx;
 174       break;
 175     case NSPROTO_SPXII :
 176         lpBuffer->dwServiceFlags = XP_FRAGMENTATION      | XP_GRACEFUL_CLOSE     |
 177                                    XP_PSEUDO_STREAM      | XP_MESSAGE_ORIENTED   |
 178                                    XP_GUARANTEED_ORDER   | XP_GUARANTEED_DELIVERY;
 179         lpBuffer->iAddressFamily = WS_AF_IPX;
 180         lpBuffer->iMaxSockAddr   = 0x10;  /* NT4 SP5 */
 181         lpBuffer->iMinSockAddr   = 0x0e;  /* NT4 SP5 */
 182         lpBuffer->iSocketType    = 5;
 183         lpBuffer->dwMessageSize  = -1;    /* NT4 SP5 */
 184         lpProtName = NameSpxII;
 185       break;
 186   }
 187   if (unicode)
 188     strcpyW( (LPWSTR)lpBuffer->lpProtocol, lpProtName);
 189   else
 190     WideCharToMultiByte( CP_ACP, 0, lpProtName, -1, lpBuffer->lpProtocol,
 191                          dwOldSize - iAnz * sizeof( PROTOCOL_INFOA), NULL, NULL);
 192
 193   return iAnz;
 194 }
 195
 196 /* FIXME: EnumProtocols should be moved to winsock2, and this should be
 197  * implemented by calling out to WSAEnumProtocols. See:
 198  * http://support.microsoft.com/support/kb/articles/Q129/3/15.asp
 199  */
 200 /*****************************************************************************
 201  *          WSOCK32_EnumProtocol [internal]
 202  *
 203  *    Enters the information about installed protocols into a given buffer
 204  *
 205  * RETURNS
 206  *    SOCKET_ERROR if the buffer is to small for the requested protocol infos
 207  *    on success the number of protocols inside the buffer
 208  *
 209  * NOTE
 210  *    NT4SP5 does not return SPX if lpiProtocols == NULL
 211  *
 212  * BUGS
 213  *    - NT4SP5 returns in addition these list of NETBIOS protocols
 214  *      (address family 17), each entry two times one for socket type 2 and 5
 215  *
 216  *      iProtocol   lpProtocol
 217  *      0x80000000  \Device\NwlnkNb
 218  *      0xfffffffa  \Device\NetBT_CBENT7
 219  *      0xfffffffb  \Device\Nbf_CBENT7
 220  *      0xfffffffc  \Device\NetBT_NdisWan5
 221  *      0xfffffffd  \Device\NetBT_El9202
 222  *      0xfffffffe  \Device\Nbf_El9202
 223  *      0xffffffff  \Device\Nbf_NdisWan4
 224  *
 225  *    - there is no check that the operating system supports the returned
 226  *      protocols
 227  */
 228 static INT WSOCK32_EnumProtocol( LPINT lpiProtocols, PROTOCOL_INFOA* lpBuffer,
 229                                  LPDWORD lpdwLength, BOOL unicode)
 230 { DWORD dwCurSize, dwOldSize = *lpdwLength, dwTemp;
 231   INT   anz = 0, i;
 232   INT   iLocal[] = { WS_IPPROTO_TCP, WS_IPPROTO_UDP, NSPROTO_IPX, NSPROTO_SPXII, 0};
 233
 234   if (!lpiProtocols) lpiProtocols = iLocal;
 235
 236   *lpdwLength = 0;
 237   while ( *lpiProtocols )
 238   { dwCurSize = 0;
 239     WSOCK32_EnterSingleProtocol( *lpiProtocols, NULL, &dwCurSize, unicode);
 240
 241     if ( lpBuffer && dwCurSize && ((*lpdwLength + dwCurSize) <= dwOldSize))
 242     { /* reserve the required space for the current protocol_info after the
 243        * last protocol_info before the start of the string buffer and adjust
 244        * the references into the string buffer
 245        */
 246       memmove( &((char*)&lpBuffer[ anz])[dwCurSize],
 247                   &lpBuffer[ anz],
 248                *lpdwLength - anz * sizeof( PROTOCOL_INFOA));
 249       for (i=0; i < anz; i++)
 250         lpBuffer[i].lpProtocol += dwCurSize;
 251
 252       dwTemp = dwCurSize;
 253       anz += WSOCK32_EnterSingleProtocol( *lpiProtocols, &lpBuffer[anz],
 254                                           &dwTemp, unicode);
 255     }
 256
 257     *lpdwLength += dwCurSize;
 258     lpiProtocols++;
 259   }
 260
 261   if (dwOldSize < *lpdwLength) anz = SOCKET_ERROR;
 262
 263   return anz;
 264 }
 265
 266 /*****************************************************************************
 267  *          EnumProtocolsA       [WSOCK32.1111]
 268  *
 269  *    see function WSOCK32_EnumProtocol for RETURNS, BUGS
 270  */
 271 INT WINAPI EnumProtocolsA( LPINT lpiProtocols, LPVOID lpBuffer,
 272                            LPDWORD lpdwLength)
 273 {
 274    return WSOCK32_EnumProtocol( lpiProtocols, (PROTOCOL_INFOA*) lpBuffer,
 275                                 lpdwLength, FALSE);
 276 }
 277
 278 /*****************************************************************************
 279  *          EnumProtocolsW       [WSOCK32.1112]
 280  *
 281  *    see function WSOCK32_EnumProtocol for RETURNS, BUGS
 282  */
 283 INT WINAPI EnumProtocolsW( LPINT lpiProtocols, LPVOID lpBuffer,
 284                            LPDWORD lpdwLength)
 285 {
 286    return WSOCK32_EnumProtocol( lpiProtocols, (PROTOCOL_INFOA*) lpBuffer,
 287                                 lpdwLength, TRUE);
 288 }
 289
 290 /*****************************************************************************
 291  *          inet_network       [WSOCK32.1100]
 292  */
 293 UINT WINAPI WSOCK32_inet_network(const char *cp)
 294 {
 295 #ifdef HAVE_INET_NETWORK
 296     return inet_network(cp);
 297 #else
 298     return 0;
 299 #endif
 300 }
 301
 302 /*****************************************************************************
 303  *          getnetbyname       [WSOCK32.1101]
 304  */
 305 struct netent * WINAPI WSOCK32_getnetbyname(const char *name)
 306 {
 307 #ifdef HAVE_GETNETBYNAME
 308     return getnetbyname(name);
 309 #else
 310     return NULL;
 311 #endif
 312 }