git.oblomov.eu Git - wine/blob - tools/widl/server.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2005-2006 Eric Kohl
   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 #include "wine/port.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <string.h>
  30 #include <ctype.h>
  31
  32 #include "widl.h"
  33 #include "utils.h"
  34 #include "parser.h"
  35 #include "header.h"
  36
  37 #include "typegen.h"
  38
  39 static FILE* server;
  40 static int indent = 0;
  41
  42
  43 static void print_server(const char *format, ...) __attribute__((format (printf, 1, 2)));
  44 static void print_server(const char *format, ...)
  45 {
  46     va_list va;
  47     va_start(va, format);
  48     print(server, indent, format, va);
  49     va_end(va);
  50 }
  51
  52 static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
  53 {
  54     const statement_t *stmt;
  55     const var_t *var;
  56     const var_t* explicit_handle_var;
  57
  58     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
  59     {
  60         const var_t *func = stmt->u.var;
  61         int has_full_pointer = is_full_pointer_function(func);
  62
  63         /* check for a defined binding handle */
  64         explicit_handle_var = get_explicit_handle_var(func);
  65
  66         print_server("struct __frame_%s_%s\n{\n", iface->name, get_name(func));
  67         indent++;
  68         print_server("__DECL_EXCEPTION_FRAME\n");
  69         print_server("MIDL_STUB_MESSAGE _StubMsg;\n");
  70
  71         /* Declare arguments */
  72         declare_stub_args(server, indent, func);
  73
  74         indent--;
  75         print_server("};\n\n");
  76
  77         print_server("static void __finally_%s_%s(", iface->name, get_name(func));
  78         fprintf(server," struct __frame_%s_%s *__frame )\n{\n", iface->name, get_name(func));
  79
  80         indent++;
  81         write_remoting_arguments(server, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
  82
  83         if (has_full_pointer)
  84             write_full_pointer_free(server, indent, func);
  85
  86         indent--;
  87         print_server("}\n\n");
  88
  89         print_server("void __RPC_STUB %s_%s( PRPC_MESSAGE _pRpcMessage )\n", iface->name, get_name(func));
  90
  91         /* write the functions body */
  92         fprintf(server, "{\n");
  93         indent++;
  94         print_server("struct __frame_%s_%s __f, * const __frame = &__f;\n", iface->name, get_name(func));
  95         if (has_out_arg_or_return(func)) print_server("RPC_STATUS _Status;\n");
  96         fprintf(server, "\n");
  97
  98         print_server("NdrServerInitializeNew(\n");
  99         indent++;
 100         print_server("_pRpcMessage,\n");
 101         print_server("&__frame->_StubMsg,\n");
 102         print_server("&%s_StubDesc);\n", iface->name);
 103         indent--;
 104         fprintf(server, "\n");
 105         print_server( "RpcExceptionInit( __server_filter, __finally_%s_%s );\n", iface->name, get_name(func));
 106
 107         write_parameters_init(server, indent, func, "__frame->");
 108
 109         if (explicit_handle_var)
 110         {
 111             print_server("__frame->%s = _pRpcMessage->Handle;\n", explicit_handle_var->name);
 112             fprintf(server, "\n");
 113         }
 114
 115         print_server("RpcTryFinally\n");
 116         print_server("{\n");
 117         indent++;
 118         print_server("RpcTryExcept\n");
 119         print_server("{\n");
 120         indent++;
 121
 122         if (has_full_pointer)
 123             write_full_pointer_init(server, indent, func, TRUE);
 124
 125         if (type_get_function_args(func->type))
 126         {
 127             print_server("if ((_pRpcMessage->DataRepresentation & 0x0000FFFFUL) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 128             indent++;
 129             print_server("NdrConvert(&__frame->_StubMsg, (PFORMAT_STRING)&__MIDL_ProcFormatString.Format[%u]);\n",
 130                          *proc_offset);
 131             indent--;
 132             fprintf(server, "\n");
 133
 134             /* unmarshall arguments */
 135             write_remoting_arguments(server, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 136         }
 137
 138         print_server("if (__frame->_StubMsg.Buffer > __frame->_StubMsg.BufferEnd)\n");
 139         print_server("{\n");
 140         indent++;
 141         print_server("RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
 142         indent--;
 143         print_server("}\n");
 144         indent--;
 145         print_server("}\n");
 146         print_server("RpcExcept(RPC_BAD_STUB_DATA_EXCEPTION_FILTER)\n");
 147         print_server("{\n");
 148         indent++;
 149         print_server("RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
 150         indent--;
 151         print_server("}\n");
 152         print_server("RpcEndExcept\n");
 153         fprintf(server, "\n");
 154
 155         /* Assign 'out' arguments */
 156         assign_stub_out_args(server, indent, func, "__frame->");
 157
 158         /* Call the real server function */
 159         print_server("%s%s%s",
 160                      is_void(type_function_get_rettype(func->type)) ? "" : "__frame->_RetVal = ",
 161                      prefix_server, get_name(func));
 162
 163         if (type_get_function_args(func->type))
 164         {
 165             int first_arg = 1;
 166
 167             fprintf(server, "(\n");
 168             indent++;
 169             LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
 170             {
 171                 if (first_arg)
 172                     first_arg = 0;
 173                 else
 174                     fprintf(server, ",\n");
 175                 if (is_context_handle(var->type))
 176                 {
 177                     /* if the context_handle attribute appears in the chain of types
 178                      * without pointers being followed, then the context handle must
 179                      * be direct, otherwise it is a pointer */
 180                     int is_ch_ptr = is_aliaschain_attr(var->type, ATTR_CONTEXTHANDLE) ? FALSE : TRUE;
 181                     print_server("(");
 182                     write_type_decl_left(server, var->type);
 183                     fprintf(server, ")%sNDRSContextValue(__frame->%s)",
 184                             is_ch_ptr ? "" : "*", var->name);
 185                 }
 186                 else
 187                 {
 188                     print_server("%s__frame->%s", var->type->declarray ? "*" : "", var->name);
 189                 }
 190             }
 191             fprintf(server, ");\n");
 192             indent--;
 193         }
 194         else
 195         {
 196             fprintf(server, "();\n");
 197         }
 198
 199         if (has_out_arg_or_return(func))
 200         {
 201             write_remoting_arguments(server, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 202
 203             if (!is_void(type_function_get_rettype(func->type)))
 204                 write_remoting_arguments(server, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 205
 206             print_server("_pRpcMessage->BufferLength = __frame->_StubMsg.BufferLength;\n");
 207             fprintf(server, "\n");
 208             print_server("_Status = I_RpcGetBuffer(_pRpcMessage);\n");
 209             print_server("if (_Status)\n");
 210             indent++;
 211             print_server("RpcRaiseException(_Status);\n");
 212             indent--;
 213             fprintf(server, "\n");
 214             print_server("__frame->_StubMsg.Buffer = _pRpcMessage->Buffer;\n");
 215             fprintf(server, "\n");
 216         }
 217
 218         /* marshall arguments */
 219         write_remoting_arguments(server, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 220
 221         /* marshall the return value */
 222         if (!is_void(type_function_get_rettype(func->type)))
 223             write_remoting_arguments(server, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 224
 225         indent--;
 226         print_server("}\n");
 227         print_server("RpcFinally\n");
 228         print_server("{\n");
 229         indent++;
 230         print_server("__finally_%s_%s( __frame );\n", iface->name, get_name(func));
 231         indent--;
 232         print_server("}\n");
 233         print_server("RpcEndFinally\n");
 234
 235         /* calculate buffer length */
 236         fprintf(server, "\n");
 237         print_server("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 238         indent--;
 239         fprintf(server, "}\n");
 240         fprintf(server, "\n");
 241
 242         /* update proc_offset */
 243         *proc_offset += get_size_procformatstring_func( func );
 244     }
 245 }
 246
 247
 248 static void write_dispatchtable(type_t *iface)
 249 {
 250     unsigned int ver = get_attrv(iface->attrs, ATTR_VERSION);
 251     unsigned int method_count = 0;
 252     const statement_t *stmt;
 253
 254     print_server("static RPC_DISPATCH_FUNCTION %s_table[] =\n", iface->name);
 255     print_server("{\n");
 256     indent++;
 257
 258     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 259     {
 260         var_t *func = stmt->u.var;
 261         print_server("%s_%s,\n", iface->name, get_name(func));
 262         method_count++;
 263     }
 264     print_server("0\n");
 265     indent--;
 266     print_server("};\n");
 267     print_server("static RPC_DISPATCH_TABLE %s_v%d_%d_DispatchTable =\n", iface->name, MAJORVERSION(ver), MINORVERSION(ver));
 268     print_server("{\n");
 269     indent++;
 270     print_server("%u,\n", method_count);
 271     print_server("%s_table\n", iface->name);
 272     indent--;
 273     print_server("};\n");
 274     fprintf(server, "\n");
 275 }
 276
 277
 278 static void write_stubdescdecl(type_t *iface)
 279 {
 280     print_server("static const MIDL_STUB_DESC %s_StubDesc;\n", iface->name);
 281     fprintf(server, "\n");
 282 }
 283
 284
 285 static void write_stubdescriptor(type_t *iface, int expr_eval_routines)
 286 {
 287     print_server("static const MIDL_STUB_DESC %s_StubDesc =\n", iface->name);
 288     print_server("{\n");
 289     indent++;
 290     print_server("(void *)& %s___RpcServerInterface,\n", iface->name);
 291     print_server("MIDL_user_allocate,\n");
 292     print_server("MIDL_user_free,\n");
 293     print_server("{\n");
 294     indent++;
 295     print_server("0,\n");
 296     indent--;
 297     print_server("},\n");
 298     print_server("0,\n");
 299     print_server("0,\n");
 300     if (expr_eval_routines)
 301         print_server("ExprEvalRoutines,\n");
 302     else
 303         print_server("0,\n");
 304     print_server("0,\n");
 305     print_server("__MIDL_TypeFormatString.Format,\n");
 306     print_server("1, /* -error bounds_check flag */\n");
 307     print_server("0x10001, /* Ndr library version */\n");
 308     print_server("0,\n");
 309     print_server("0x50100a4, /* MIDL Version 5.1.164 */\n");
 310     print_server("0,\n");
 311     print_server("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
 312     print_server("0,  /* notify & notify_flag routine table */\n");
 313     print_server("1,  /* Flags */\n");
 314     print_server("0,  /* Reserved3 */\n");
 315     print_server("0,  /* Reserved4 */\n");
 316     print_server("0   /* Reserved5 */\n");
 317     indent--;
 318     print_server("};\n");
 319     fprintf(server, "\n");
 320 }
 321
 322
 323 static void write_serverinterfacedecl(type_t *iface)
 324 {
 325     unsigned int ver = get_attrv(iface->attrs, ATTR_VERSION);
 326     UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 327     const str_list_t *endpoints = get_attrp(iface->attrs, ATTR_ENDPOINT);
 328
 329     if (endpoints) write_endpoints( server, iface->name, endpoints );
 330
 331     print_server("static RPC_DISPATCH_TABLE %s_v%d_%d_DispatchTable;\n", iface->name, MAJORVERSION(ver), MINORVERSION(ver));
 332     fprintf(server, "\n");
 333     print_server("static const RPC_SERVER_INTERFACE %s___RpcServerInterface =\n", iface->name );
 334     print_server("{\n");
 335     indent++;
 336     print_server("sizeof(RPC_SERVER_INTERFACE),\n");
 337     print_server("{{0x%08x,0x%04x,0x%04x,{0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x}},{%d,%d}},\n",
 338                  uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1],
 339                  uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6],
 340                  uuid->Data4[7], MAJORVERSION(ver), MINORVERSION(ver));
 341     print_server("{{0x8a885d04,0x1ceb,0x11c9,{0x9f,0xe8,0x08,0x00,0x2b,0x10,0x48,0x60}},{2,0}},\n"); /* FIXME */
 342     print_server("&%s_v%d_%d_DispatchTable,\n", iface->name, MAJORVERSION(ver), MINORVERSION(ver));
 343     if (endpoints)
 344     {
 345         print_server("%u,\n", list_count(endpoints));
 346         print_server("(PRPC_PROTSEQ_ENDPOINT)%s__RpcProtseqEndpoint,\n", iface->name);
 347     }
 348     else
 349     {
 350         print_server("0,\n");
 351         print_server("0,\n");
 352     }
 353     print_server("0,\n");
 354     print_server("0,\n");
 355     print_server("0,\n");
 356     indent--;
 357     print_server("};\n");
 358     if (old_names)
 359         print_server("RPC_IF_HANDLE %s_ServerIfHandle DECLSPEC_HIDDEN = (RPC_IF_HANDLE)& %s___RpcServerInterface;\n",
 360                      iface->name, iface->name);
 361     else
 362         print_server("RPC_IF_HANDLE %s%s_v%d_%d_s_ifspec DECLSPEC_HIDDEN = (RPC_IF_HANDLE)& %s___RpcServerInterface;\n",
 363                      prefix_server, iface->name, MAJORVERSION(ver), MINORVERSION(ver), iface->name);
 364     fprintf(server, "\n");
 365 }
 366
 367
 368 static void init_server(void)
 369 {
 370     if (server)
 371         return;
 372     if (!(server = fopen(server_name, "w")))
 373         error("Could not open %s for output\n", server_name);
 374
 375     print_server("/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
 376     print_server("#include <string.h>\n");
 377     fprintf(server, "\n");
 378     print_server("#include \"%s\"\n", header_name);
 379     print_server("\n");
 380     print_server( "#ifndef DECLSPEC_HIDDEN\n");
 381     print_server( "#define DECLSPEC_HIDDEN\n");
 382     print_server( "#endif\n");
 383     print_server( "\n");
 384     write_exceptions( server );
 385     print_server("\n");
 386     print_server("struct __server_frame\n");
 387     print_server("{\n");
 388     print_server("    __DECL_EXCEPTION_FRAME\n");
 389     print_server("    MIDL_STUB_MESSAGE _StubMsg;\n");
 390     print_server("};\n");
 391     print_server("\n");
 392     print_server("static int __server_filter( struct __server_frame *__frame )\n");
 393     print_server( "{\n");
 394     print_server( "    return (__frame->code == STATUS_ACCESS_VIOLATION) ||\n");
 395     print_server( "           (__frame->code == STATUS_DATATYPE_MISALIGNMENT) ||\n");
 396     print_server( "           (__frame->code == RPC_X_BAD_STUB_DATA) ||\n");
 397     print_server( "           (__frame->code == RPC_S_INVALID_BOUND);\n");
 398     print_server( "}\n");
 399     print_server( "\n");
 400 }
 401
 402
 403 static void write_server_stmts(const statement_list_t *stmts, int expr_eval_routines, unsigned int *proc_offset)
 404 {
 405     const statement_t *stmt;
 406     if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 407     {
 408         if (stmt->type == STMT_LIBRARY)
 409             write_server_stmts(stmt->u.lib->stmts, expr_eval_routines, proc_offset);
 410         else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 411         {
 412             type_t *iface = stmt->u.type;
 413             if (!need_stub(iface))
 414                 continue;
 415
 416             fprintf(server, "/*****************************************************************************\n");
 417             fprintf(server, " * %s interface\n", iface->name);
 418             fprintf(server, " */\n");
 419             fprintf(server, "\n");
 420
 421             if (statements_has_func(type_iface_get_stmts(iface)))
 422             {
 423                 write_serverinterfacedecl(iface);
 424                 write_stubdescdecl(iface);
 425
 426                 write_function_stubs(iface, proc_offset);
 427
 428                 print_server("#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 429                 print_server("#error  Invalid build platform for this stub.\n");
 430                 print_server("#endif\n");
 431
 432                 fprintf(server, "\n");
 433                 write_stubdescriptor(iface, expr_eval_routines);
 434                 write_dispatchtable(iface);
 435             }
 436         }
 437     }
 438 }
 439
 440 static void write_server_routines(const statement_list_t *stmts)
 441 {
 442     unsigned int proc_offset = 0;
 443     int expr_eval_routines;
 444
 445     write_formatstringsdecl(server, indent, stmts, need_stub);
 446     expr_eval_routines = write_expr_eval_routines(server, server_token);
 447     if (expr_eval_routines)
 448         write_expr_eval_routine_list(server, server_token);
 449     write_user_quad_list(server);
 450
 451     write_server_stmts(stmts, expr_eval_routines, &proc_offset);
 452
 453     fprintf(server, "\n");
 454
 455     write_procformatstring(server, stmts, need_stub);
 456     write_typeformatstring(server, stmts, need_stub);
 457 }
 458
 459 void write_server(const statement_list_t *stmts)
 460 {
 461     if (!do_server)
 462         return;
 463     if (do_everything && !need_stub_files(stmts))
 464         return;
 465
 466     init_server();
 467     if (!server)
 468         return;
 469
 470     if (do_win32 && do_win64)
 471     {
 472         fprintf(server, "\n#ifndef _WIN64\n\n");
 473         pointer_size = 4;
 474         write_server_routines( stmts );
 475         fprintf(server, "\n#else /* _WIN64 */\n\n");
 476         pointer_size = 8;
 477         write_server_routines( stmts );
 478         fprintf(server, "\n#endif /* _WIN64 */\n");
 479     }
 480     else if (do_win32)
 481     {
 482         pointer_size = 4;
 483         write_server_routines( stmts );
 484     }
 485     else if (do_win64)
 486     {
 487         pointer_size = 8;
 488         write_server_routines( stmts );
 489     }
 490
 491     fclose(server);
 492 }