6d6331a7a72ec330041605f0e4d03312a67371c2
[reactos.git] / reactos / tools / widl / typegen.c
1 /*
2 * Format String Generator for IDL Compiler
3 *
4 * Copyright 2005-2006 Eric Kohl
5 * Copyright 2005-2006 Robert Shearman
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #ifdef HAVE_UNISTD_H
28 # include <unistd.h>
29 #endif
30 #include <string.h>
31 #include <assert.h>
32 #include <ctype.h>
33 #include <limits.h>
34
35 #include "widl.h"
36 #include "utils.h"
37 #include "parser.h"
38 #include "header.h"
39 #include "wine/list.h"
40
41 #include "typegen.h"
42 #include "expr.h"
43
44 /* round size up to multiple of alignment */
45 #define ROUND_SIZE(size, alignment) (((size) + ((alignment) - 1)) & ~((alignment) - 1))
46 /* value to add on to round size up to a multiple of alignment */
47 #define ROUNDING(size, alignment) (((alignment) - 1) - (((size) + ((alignment) - 1)) & ((alignment) - 1)))
48
49 static const func_t *current_func;
50 static const type_t *current_structure;
51 static const type_t *current_iface;
52
53 static struct list expr_eval_routines = LIST_INIT(expr_eval_routines);
54 struct expr_eval_routine
55 {
56 struct list entry;
57 const type_t *structure;
58 unsigned int baseoff;
59 const expr_t *expr;
60 };
61
62 static size_t fields_memsize(const var_list_t *fields, unsigned int *align);
63 static size_t write_struct_tfs(FILE *file, type_t *type, const char *name, unsigned int *tfsoff);
64 static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
65 const char *name, int write_ptr, unsigned int *tfsoff);
66 static const var_t *find_array_or_string_in_struct(const type_t *type);
67 static size_t write_string_tfs(FILE *file, const attr_list_t *attrs,
68 type_t *type,
69 const char *name, unsigned int *typestring_offset);
70
71 const char *string_of_type(unsigned char type)
72 {
73 switch (type)
74 {
75 case RPC_FC_BYTE: return "FC_BYTE";
76 case RPC_FC_CHAR: return "FC_CHAR";
77 case RPC_FC_SMALL: return "FC_SMALL";
78 case RPC_FC_USMALL: return "FC_USMALL";
79 case RPC_FC_WCHAR: return "FC_WCHAR";
80 case RPC_FC_SHORT: return "FC_SHORT";
81 case RPC_FC_USHORT: return "FC_USHORT";
82 case RPC_FC_LONG: return "FC_LONG";
83 case RPC_FC_ULONG: return "FC_ULONG";
84 case RPC_FC_FLOAT: return "FC_FLOAT";
85 case RPC_FC_HYPER: return "FC_HYPER";
86 case RPC_FC_DOUBLE: return "FC_DOUBLE";
87 case RPC_FC_ENUM16: return "FC_ENUM16";
88 case RPC_FC_ENUM32: return "FC_ENUM32";
89 case RPC_FC_IGNORE: return "FC_IGNORE";
90 case RPC_FC_ERROR_STATUS_T: return "FC_ERROR_STATUS_T";
91 case RPC_FC_RP: return "FC_RP";
92 case RPC_FC_UP: return "FC_UP";
93 case RPC_FC_OP: return "FC_OP";
94 case RPC_FC_FP: return "FC_FP";
95 case RPC_FC_ENCAPSULATED_UNION: return "FC_ENCAPSULATED_UNION";
96 case RPC_FC_NON_ENCAPSULATED_UNION: return "FC_NON_ENCAPSULATED_UNION";
97 case RPC_FC_STRUCT: return "FC_STRUCT";
98 case RPC_FC_PSTRUCT: return "FC_PSTRUCT";
99 case RPC_FC_CSTRUCT: return "FC_CSTRUCT";
100 case RPC_FC_CPSTRUCT: return "FC_CPSTRUCT";
101 case RPC_FC_CVSTRUCT: return "FC_CVSTRUCT";
102 case RPC_FC_BOGUS_STRUCT: return "FC_BOGUS_STRUCT";
103 case RPC_FC_SMFARRAY: return "FC_SMFARRAY";
104 case RPC_FC_LGFARRAY: return "FC_LGFARRAY";
105 case RPC_FC_SMVARRAY: return "FC_SMVARRAY";
106 case RPC_FC_LGVARRAY: return "FC_LGVARRAY";
107 case RPC_FC_CARRAY: return "FC_CARRAY";
108 case RPC_FC_CVARRAY: return "FC_CVARRAY";
109 case RPC_FC_BOGUS_ARRAY: return "FC_BOGUS_ARRAY";
110 case RPC_FC_ALIGNM4: return "FC_ALIGNM4";
111 case RPC_FC_ALIGNM8: return "FC_ALIGNM8";
112 case RPC_FC_POINTER: return "FC_POINTER";
113 case RPC_FC_C_CSTRING: return "FC_C_CSTRING";
114 case RPC_FC_C_WSTRING: return "FC_C_WSTRING";
115 case RPC_FC_CSTRING: return "FC_CSTRING";
116 case RPC_FC_WSTRING: return "FC_WSTRING";
117 default:
118 error("string_of_type: unknown type 0x%02x\n", type);
119 return NULL;
120 }
121 }
122
123 int is_struct(unsigned char type)
124 {
125 switch (type)
126 {
127 case RPC_FC_STRUCT:
128 case RPC_FC_PSTRUCT:
129 case RPC_FC_CSTRUCT:
130 case RPC_FC_CPSTRUCT:
131 case RPC_FC_CVSTRUCT:
132 case RPC_FC_BOGUS_STRUCT:
133 return 1;
134 default:
135 return 0;
136 }
137 }
138
139 static int is_non_complex_struct(const type_t *type)
140 {
141 switch (type->type)
142 {
143 case RPC_FC_STRUCT:
144 case RPC_FC_PSTRUCT:
145 case RPC_FC_CSTRUCT:
146 case RPC_FC_CPSTRUCT:
147 case RPC_FC_CVSTRUCT:
148 return 1;
149 default:
150 return 0;
151 }
152 }
153
154 int is_union(unsigned char type)
155 {
156 switch (type)
157 {
158 case RPC_FC_ENCAPSULATED_UNION:
159 case RPC_FC_NON_ENCAPSULATED_UNION:
160 return 1;
161 default:
162 return 0;
163 }
164 }
165
166 static int type_has_pointers(const type_t *type)
167 {
168 if (is_user_type(type))
169 return FALSE;
170 else if (is_ptr(type))
171 return TRUE;
172 else if (is_array(type))
173 return type_has_pointers(type->ref);
174 else if (is_struct(type->type))
175 {
176 const var_t *field;
177 if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
178 {
179 if (type_has_pointers(field->type))
180 return TRUE;
181 }
182 }
183 else if (is_union(type->type))
184 {
185 var_list_t *fields;
186 const var_t *field;
187 if (type->type == RPC_FC_ENCAPSULATED_UNION)
188 {
189 const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
190 fields = uv->type->fields_or_args;
191 }
192 else
193 fields = type->fields_or_args;
194 if (fields) LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry )
195 {
196 if (field->type && type_has_pointers(field->type))
197 return TRUE;
198 }
199 }
200
201 return FALSE;
202 }
203
204 static int type_has_full_pointer(const type_t *type)
205 {
206 if (is_user_type(type))
207 return FALSE;
208 else if (type->type == RPC_FC_FP)
209 return TRUE;
210 else if (is_ptr(type))
211 return FALSE;
212 else if (is_array(type))
213 return type_has_full_pointer(type->ref);
214 else if (is_struct(type->type))
215 {
216 const var_t *field;
217 if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
218 {
219 if (type_has_full_pointer(field->type))
220 return TRUE;
221 }
222 }
223 else if (is_union(type->type))
224 {
225 var_list_t *fields;
226 const var_t *field;
227 if (type->type == RPC_FC_ENCAPSULATED_UNION)
228 {
229 const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
230 fields = uv->type->fields_or_args;
231 }
232 else
233 fields = type->fields_or_args;
234 if (fields) LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry )
235 {
236 if (field->type && type_has_full_pointer(field->type))
237 return TRUE;
238 }
239 }
240
241 return FALSE;
242 }
243
244 static unsigned short user_type_offset(const char *name)
245 {
246 user_type_t *ut;
247 unsigned short off = 0;
248 LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
249 {
250 if (strcmp(name, ut->name) == 0)
251 return off;
252 ++off;
253 }
254 error("user_type_offset: couldn't find type (%s)\n", name);
255 return 0;
256 }
257
258 static void update_tfsoff(type_t *type, unsigned int offset, FILE *file)
259 {
260 type->typestring_offset = offset;
261 if (file) type->tfswrite = FALSE;
262 }
263
264 static void guard_rec(type_t *type)
265 {
266 /* types that contain references to themselves (like a linked list),
267 need to be shielded from infinite recursion when writing embedded
268 types */
269 if (type->typestring_offset)
270 type->tfswrite = FALSE;
271 else
272 type->typestring_offset = 1;
273 }
274
275 static type_t *get_user_type(const type_t *t, const char **pname)
276 {
277 for (;;)
278 {
279 type_t *ut = get_attrp(t->attrs, ATTR_WIREMARSHAL);
280 if (ut)
281 {
282 if (pname)
283 *pname = t->name;
284 return ut;
285 }
286
287 if (t->kind == TKIND_ALIAS)
288 t = t->orig;
289 else
290 return 0;
291 }
292 }
293
294 int is_user_type(const type_t *t)
295 {
296 return get_user_type(t, NULL) != NULL;
297 }
298
299 static int is_embedded_complex(const type_t *type)
300 {
301 unsigned char tc = type->type;
302 return is_struct(tc) || is_union(tc) || is_array(type) || is_user_type(type)
303 || (is_ptr(type) && type->ref->type == RPC_FC_IP);
304 }
305
306 static const char *get_context_handle_type_name(const type_t *type)
307 {
308 const type_t *t;
309 for (t = type; is_ptr(t); t = t->ref)
310 if (is_attr(t->attrs, ATTR_CONTEXTHANDLE))
311 return t->name;
312 assert(0);
313 return NULL;
314 }
315
316 #define WRITE_FCTYPE(file, fctype, typestring_offset) \
317 do { \
318 if (file) \
319 fprintf(file, "/* %2u */\n", typestring_offset); \
320 print_file((file), 2, "0x%02x, /* " #fctype " */\n", RPC_##fctype); \
321 } \
322 while (0)
323
324 static void print_file(FILE *file, int indent, const char *format, ...)
325 {
326 va_list va;
327 va_start(va, format);
328 print(file, indent, format, va);
329 va_end(va);
330 }
331
332 void print(FILE *file, int indent, const char *format, va_list va)
333 {
334 if (file)
335 {
336 if (format[0] != '\n')
337 while (0 < indent--)
338 fprintf(file, " ");
339 vfprintf(file, format, va);
340 }
341 }
342
343
344 static void write_var_init(FILE *file, int indent, const type_t *t, const char *n)
345 {
346 if (decl_indirect(t))
347 print_file(file, indent, "MIDL_memset(&%s, 0, sizeof(%s));\n", n, n);
348 else if (is_ptr(t) || is_array(t))
349 print_file(file, indent, "%s = 0;\n", n);
350 }
351
352 void write_parameters_init(FILE *file, int indent, const func_t *func)
353 {
354 const var_t *var;
355
356 if (!is_void(get_func_return_type(func)))
357 write_var_init(file, indent, get_func_return_type(func), "_RetVal");
358
359 if (!func->args)
360 return;
361
362 LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
363 write_var_init(file, indent, var->type, var->name);
364
365 fprintf(file, "\n");
366 }
367
368 static void write_formatdesc(FILE *f, int indent, const char *str)
369 {
370 print_file(f, indent, "typedef struct _MIDL_%s_FORMAT_STRING\n", str);
371 print_file(f, indent, "{\n");
372 print_file(f, indent + 1, "short Pad;\n");
373 print_file(f, indent + 1, "unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
374 print_file(f, indent, "} MIDL_%s_FORMAT_STRING;\n", str);
375 print_file(f, indent, "\n");
376 }
377
378 void write_formatstringsdecl(FILE *f, int indent, const statement_list_t *stmts, type_pred_t pred)
379 {
380 print_file(f, indent, "#define TYPE_FORMAT_STRING_SIZE %d\n",
381 get_size_typeformatstring(stmts, pred));
382
383 print_file(f, indent, "#define PROC_FORMAT_STRING_SIZE %d\n",
384 get_size_procformatstring(stmts, pred));
385
386 fprintf(f, "\n");
387 write_formatdesc(f, indent, "TYPE");
388 write_formatdesc(f, indent, "PROC");
389 fprintf(f, "\n");
390 print_file(f, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
391 print_file(f, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
392 print_file(f, indent, "\n");
393 }
394
395 static inline int is_base_type(unsigned char type)
396 {
397 switch (type)
398 {
399 case RPC_FC_BYTE:
400 case RPC_FC_CHAR:
401 case RPC_FC_USMALL:
402 case RPC_FC_SMALL:
403 case RPC_FC_WCHAR:
404 case RPC_FC_USHORT:
405 case RPC_FC_SHORT:
406 case RPC_FC_ULONG:
407 case RPC_FC_LONG:
408 case RPC_FC_HYPER:
409 case RPC_FC_IGNORE:
410 case RPC_FC_FLOAT:
411 case RPC_FC_DOUBLE:
412 case RPC_FC_ENUM16:
413 case RPC_FC_ENUM32:
414 case RPC_FC_ERROR_STATUS_T:
415 case RPC_FC_BIND_PRIMITIVE:
416 return TRUE;
417
418 default:
419 return FALSE;
420 }
421 }
422
423 int decl_indirect(const type_t *t)
424 {
425 return is_user_type(t)
426 || (!is_base_type(t->type)
427 && !is_ptr(t)
428 && !is_array(t));
429 }
430
431 static size_t write_procformatstring_type(FILE *file, int indent,
432 const char *name,
433 const type_t *type,
434 const attr_list_t *attrs,
435 int is_return)
436 {
437 size_t size;
438
439 int is_in = is_attr(attrs, ATTR_IN);
440 int is_out = is_attr(attrs, ATTR_OUT);
441
442 if (!is_in && !is_out) is_in = TRUE;
443
444 if (!type->declarray && is_base_type(type->type))
445 {
446 if (is_return)
447 print_file(file, indent, "0x53, /* FC_RETURN_PARAM_BASETYPE */\n");
448 else
449 print_file(file, indent, "0x4e, /* FC_IN_PARAM_BASETYPE */\n");
450
451 if (type->type == RPC_FC_BIND_PRIMITIVE)
452 {
453 print_file(file, indent, "0x%02x, /* FC_IGNORE */\n", RPC_FC_IGNORE);
454 size = 2; /* includes param type prefix */
455 }
456 else if (is_base_type(type->type))
457 {
458 print_file(file, indent, "0x%02x, /* %s */\n", type->type, string_of_type(type->type));
459 size = 2; /* includes param type prefix */
460 }
461 else
462 {
463 error("Unknown/unsupported type: %s (0x%02x)\n", name, type->type);
464 size = 0;
465 }
466 }
467 else
468 {
469 if (is_return)
470 print_file(file, indent, "0x52, /* FC_RETURN_PARAM */\n");
471 else if (is_in && is_out)
472 print_file(file, indent, "0x50, /* FC_IN_OUT_PARAM */\n");
473 else if (is_out)
474 print_file(file, indent, "0x51, /* FC_OUT_PARAM */\n");
475 else
476 print_file(file, indent, "0x4d, /* FC_IN_PARAM */\n");
477
478 print_file(file, indent, "0x01,\n");
479 print_file(file, indent, "NdrFcShort(0x%x),\n", type->typestring_offset);
480 size = 4; /* includes param type prefix */
481 }
482 return size;
483 }
484
485 static void write_procformatstring_stmts(FILE *file, int indent, const statement_list_t *stmts, type_pred_t pred)
486 {
487 const statement_t *stmt;
488 if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
489 {
490 if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
491 {
492 const func_t *func;
493 if (!pred(stmt->u.type))
494 continue;
495 if (stmt->u.type->funcs) LIST_FOR_EACH_ENTRY( func, stmt->u.type->funcs, const func_t, entry )
496 {
497 if (is_local(func->def->attrs)) continue;
498 /* emit argument data */
499 if (func->args)
500 {
501 const var_t *var;
502 LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
503 write_procformatstring_type(file, indent, var->name, var->type, var->attrs, FALSE);
504 }
505
506 /* emit return value data */
507 if (is_void(get_func_return_type(func)))
508 {
509 print_file(file, indent, "0x5b, /* FC_END */\n");
510 print_file(file, indent, "0x5c, /* FC_PAD */\n");
511 }
512 else
513 write_procformatstring_type(file, indent, "return value", get_func_return_type(func), NULL, TRUE);
514 }
515 }
516 else if (stmt->type == STMT_LIBRARY)
517 write_procformatstring_stmts(file, indent, stmt->u.lib->stmts, pred);
518 }
519 }
520
521 void write_procformatstring(FILE *file, const statement_list_t *stmts, type_pred_t pred)
522 {
523 int indent = 0;
524
525 print_file(file, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString =\n");
526 print_file(file, indent, "{\n");
527 indent++;
528 print_file(file, indent, "0,\n");
529 print_file(file, indent, "{\n");
530 indent++;
531
532 write_procformatstring_stmts(file, indent, stmts, pred);
533
534 print_file(file, indent, "0x0\n");
535 indent--;
536 print_file(file, indent, "}\n");
537 indent--;
538 print_file(file, indent, "};\n");
539 print_file(file, indent, "\n");
540 }
541
542 static int write_base_type(FILE *file, const type_t *type, unsigned int *typestring_offset)
543 {
544 if (is_base_type(type->type))
545 {
546 print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
547 *typestring_offset += 1;
548 return 1;
549 }
550
551 return 0;
552 }
553
554 /* write conformance / variance descriptor */
555 static size_t write_conf_or_var_desc(FILE *file, const type_t *structure,
556 unsigned int baseoff, const type_t *type,
557 const expr_t *expr)
558 {
559 unsigned char operator_type = 0;
560 unsigned char conftype = RPC_FC_NORMAL_CONFORMANCE;
561 const char *conftype_string = "";
562 const char *operator_string = "no operators";
563 const expr_t *subexpr;
564
565 if (!expr)
566 {
567 print_file(file, 2, "NdrFcLong(0xffffffff),\t/* -1 */\n");
568 return 4;
569 }
570
571 if (!structure)
572 {
573 /* Top-level conformance calculations are done inline. */
574 print_file (file, 2, "0x%x,\t/* Corr desc: parameter */\n",
575 RPC_FC_TOP_LEVEL_CONFORMANCE);
576 print_file (file, 2, "0x0,\n");
577 print_file (file, 2, "NdrFcShort(0x0),\n");
578 return 4;
579 }
580
581 if (expr->is_const)
582 {
583 if (expr->cval > UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX)
584 error("write_conf_or_var_desc: constant value %ld is greater than "
585 "the maximum constant size of %d\n", expr->cval,
586 UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX);
587
588 print_file(file, 2, "0x%x, /* Corr desc: constant, val = %ld */\n",
589 RPC_FC_CONSTANT_CONFORMANCE, expr->cval);
590 print_file(file, 2, "0x%x,\n", expr->cval & ~USHRT_MAX);
591 print_file(file, 2, "NdrFcShort(0x%x),\n", expr->cval & USHRT_MAX);
592
593 return 4;
594 }
595
596 if (is_ptr(type) || (is_array(type) && !type->declarray))
597 {
598 conftype = RPC_FC_POINTER_CONFORMANCE;
599 conftype_string = "field pointer, ";
600 }
601
602 subexpr = expr;
603 switch (subexpr->type)
604 {
605 case EXPR_PPTR:
606 subexpr = subexpr->ref;
607 operator_type = RPC_FC_DEREFERENCE;
608 operator_string = "FC_DEREFERENCE";
609 break;
610 case EXPR_DIV:
611 if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
612 {
613 subexpr = subexpr->ref;
614 operator_type = RPC_FC_DIV_2;
615 operator_string = "FC_DIV_2";
616 }
617 break;
618 case EXPR_MUL:
619 if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
620 {
621 subexpr = subexpr->ref;
622 operator_type = RPC_FC_MULT_2;
623 operator_string = "FC_MULT_2";
624 }
625 break;
626 case EXPR_SUB:
627 if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
628 {
629 subexpr = subexpr->ref;
630 operator_type = RPC_FC_SUB_1;
631 operator_string = "FC_SUB_1";
632 }
633 break;
634 case EXPR_ADD:
635 if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
636 {
637 subexpr = subexpr->ref;
638 operator_type = RPC_FC_ADD_1;
639 operator_string = "FC_ADD_1";
640 }
641 break;
642 default:
643 break;
644 }
645
646 if (subexpr->type == EXPR_IDENTIFIER)
647 {
648 const type_t *correlation_variable = NULL;
649 unsigned char correlation_variable_type;
650 unsigned char param_type = 0;
651 size_t offset = 0;
652 const var_t *var;
653
654 if (structure->fields_or_args) LIST_FOR_EACH_ENTRY( var, structure->fields_or_args, const var_t, entry )
655 {
656 unsigned int align = 0;
657 /* FIXME: take alignment into account */
658 if (var->name && !strcmp(var->name, subexpr->u.sval))
659 {
660 correlation_variable = var->type;
661 break;
662 }
663 offset += type_memsize(var->type, &align);
664 }
665 if (!correlation_variable)
666 error("write_conf_or_var_desc: couldn't find variable %s in structure\n",
667 subexpr->u.sval);
668
669 correlation_variable = expr_resolve_type(NULL, structure, expr);
670
671 offset -= baseoff;
672 correlation_variable_type = correlation_variable->type;
673
674 switch (correlation_variable_type)
675 {
676 case RPC_FC_CHAR:
677 case RPC_FC_SMALL:
678 param_type = RPC_FC_SMALL;
679 break;
680 case RPC_FC_BYTE:
681 case RPC_FC_USMALL:
682 param_type = RPC_FC_USMALL;
683 break;
684 case RPC_FC_WCHAR:
685 case RPC_FC_SHORT:
686 case RPC_FC_ENUM16:
687 param_type = RPC_FC_SHORT;
688 break;
689 case RPC_FC_USHORT:
690 param_type = RPC_FC_USHORT;
691 break;
692 case RPC_FC_LONG:
693 case RPC_FC_ENUM32:
694 param_type = RPC_FC_LONG;
695 break;
696 case RPC_FC_ULONG:
697 param_type = RPC_FC_ULONG;
698 break;
699 default:
700 error("write_conf_or_var_desc: conformance variable type not supported 0x%x\n",
701 correlation_variable_type);
702 }
703
704 print_file(file, 2, "0x%x, /* Corr desc: %s%s */\n",
705 conftype | param_type, conftype_string, string_of_type(param_type));
706 print_file(file, 2, "0x%x, /* %s */\n", operator_type, operator_string);
707 print_file(file, 2, "NdrFcShort(0x%x), /* offset = %d */\n",
708 offset, offset);
709 }
710 else
711 {
712 unsigned int callback_offset = 0;
713 struct expr_eval_routine *eval;
714 int found = 0;
715
716 LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
717 {
718 if (!strcmp (eval->structure->name, structure->name)
719 && !compare_expr (eval->expr, expr))
720 {
721 found = 1;
722 break;
723 }
724 callback_offset++;
725 }
726
727 if (!found)
728 {
729 eval = xmalloc (sizeof(*eval));
730 eval->structure = structure;
731 eval->baseoff = baseoff;
732 eval->expr = expr;
733 list_add_tail (&expr_eval_routines, &eval->entry);
734 }
735
736 if (callback_offset > USHRT_MAX)
737 error("Maximum number of callback routines reached\n");
738
739 print_file(file, 2, "0x%x, /* Corr desc: %s */\n", conftype, conftype_string);
740 print_file(file, 2, "0x%x, /* %s */\n", RPC_FC_CALLBACK, "FC_CALLBACK");
741 print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", callback_offset, callback_offset);
742 }
743 return 4;
744 }
745
746 static size_t fields_memsize(const var_list_t *fields, unsigned int *align)
747 {
748 int have_align = FALSE;
749 size_t size = 0;
750 const var_t *v;
751
752 if (!fields) return 0;
753 LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
754 {
755 unsigned int falign = 0;
756 size_t fsize = type_memsize(v->type, &falign);
757 if (!have_align)
758 {
759 *align = falign;
760 have_align = TRUE;
761 }
762 size = ROUND_SIZE(size, falign);
763 size += fsize;
764 }
765
766 size = ROUND_SIZE(size, *align);
767 return size;
768 }
769
770 static size_t union_memsize(const var_list_t *fields, unsigned int *pmaxa)
771 {
772 size_t size, maxs = 0;
773 unsigned int align = *pmaxa;
774 const var_t *v;
775
776 if (fields) LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
777 {
778 /* we could have an empty default field with NULL type */
779 if (v->type)
780 {
781 size = type_memsize(v->type, &align);
782 if (maxs < size) maxs = size;
783 if (*pmaxa < align) *pmaxa = align;
784 }
785 }
786
787 return maxs;
788 }
789
790 int get_padding(const var_list_t *fields)
791 {
792 unsigned short offset = 0;
793 int salign = -1;
794 const var_t *f;
795
796 if (!fields)
797 return 0;
798
799 LIST_FOR_EACH_ENTRY(f, fields, const var_t, entry)
800 {
801 type_t *ft = f->type;
802 unsigned int align = 0;
803 size_t size = type_memsize(ft, &align);
804 if (salign == -1)
805 salign = align;
806 offset = ROUND_SIZE(offset, align);
807 offset += size;
808 }
809
810 return ROUNDING(offset, salign);
811 }
812
813 size_t type_memsize(const type_t *t, unsigned int *align)
814 {
815 size_t size = 0;
816
817 if (t->kind == TKIND_ALIAS)
818 size = type_memsize(t->orig, align);
819 else if (t->declarray && is_conformant_array(t))
820 {
821 type_memsize(t->ref, align);
822 size = 0;
823 }
824 else if (is_ptr(t) || is_conformant_array(t))
825 {
826 size = sizeof(void *);
827 if (size > *align) *align = size;
828 }
829 else switch (t->type)
830 {
831 case RPC_FC_BYTE:
832 case RPC_FC_CHAR:
833 case RPC_FC_USMALL:
834 case RPC_FC_SMALL:
835 size = 1;
836 if (size > *align) *align = size;
837 break;
838 case RPC_FC_WCHAR:
839 case RPC_FC_USHORT:
840 case RPC_FC_SHORT:
841 case RPC_FC_ENUM16:
842 size = 2;
843 if (size > *align) *align = size;
844 break;
845 case RPC_FC_ULONG:
846 case RPC_FC_LONG:
847 case RPC_FC_ERROR_STATUS_T:
848 case RPC_FC_ENUM32:
849 case RPC_FC_FLOAT:
850 size = 4;
851 if (size > *align) *align = size;
852 break;
853 case RPC_FC_HYPER:
854 case RPC_FC_DOUBLE:
855 size = 8;
856 if (size > *align) *align = size;
857 break;
858 case RPC_FC_STRUCT:
859 case RPC_FC_CVSTRUCT:
860 case RPC_FC_CPSTRUCT:
861 case RPC_FC_CSTRUCT:
862 case RPC_FC_PSTRUCT:
863 case RPC_FC_BOGUS_STRUCT:
864 size = fields_memsize(t->fields_or_args, align);
865 break;
866 case RPC_FC_ENCAPSULATED_UNION:
867 case RPC_FC_NON_ENCAPSULATED_UNION:
868 size = union_memsize(t->fields_or_args, align);
869 break;
870 case RPC_FC_SMFARRAY:
871 case RPC_FC_LGFARRAY:
872 case RPC_FC_SMVARRAY:
873 case RPC_FC_LGVARRAY:
874 case RPC_FC_BOGUS_ARRAY:
875 size = t->dim * type_memsize(t->ref, align);
876 break;
877 default:
878 error("type_memsize: Unknown type %d\n", t->type);
879 size = 0;
880 }
881
882 return size;
883 }
884
885 int is_full_pointer_function(const func_t *func)
886 {
887 const var_t *var;
888 if (type_has_full_pointer(get_func_return_type(func)))
889 return TRUE;
890 if (!func->args)
891 return FALSE;
892 LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
893 if (type_has_full_pointer( var->type ))
894 return TRUE;
895 return FALSE;
896 }
897
898 void write_full_pointer_init(FILE *file, int indent, const func_t *func, int is_server)
899 {
900 print_file(file, indent, "_StubMsg.FullPtrXlatTables = NdrFullPointerXlatInit(0,%s);\n",
901 is_server ? "XLAT_SERVER" : "XLAT_CLIENT");
902 fprintf(file, "\n");
903 }
904
905 void write_full_pointer_free(FILE *file, int indent, const func_t *func)
906 {
907 print_file(file, indent, "NdrFullPointerXlatFree(_StubMsg.FullPtrXlatTables);\n");
908 fprintf(file, "\n");
909 }
910
911 static unsigned int write_nonsimple_pointer(FILE *file, const type_t *type, size_t offset)
912 {
913 short absoff = type->ref->typestring_offset;
914 short reloff = absoff - (offset + 2);
915 int ptr_attr = is_ptr(type->ref) ? 0x10 : 0x0;
916
917 print_file(file, 2, "0x%02x, 0x%x,\t/* %s */\n",
918 type->type, ptr_attr, string_of_type(type->type));
919 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%hd) */\n",
920 reloff, reloff, absoff);
921 return 4;
922 }
923
924 static unsigned int write_simple_pointer(FILE *file, const type_t *type)
925 {
926 unsigned char fc = type->ref->type;
927 /* for historical reasons, write_simple_pointer also handled string types,
928 * but no longer does. catch bad uses of the function with this check */
929 if (is_string_type(type->attrs, type))
930 error("write_simple_pointer: can't handle type %s which is a string type\n", type->name);
931 print_file(file, 2, "0x%02x, 0x8,\t/* %s [simple_pointer] */\n",
932 type->type, string_of_type(type->type));
933 print_file(file, 2, "0x%02x,\t/* %s */\n", fc, string_of_type(fc));
934 print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
935 return 4;
936 }
937
938 static void print_start_tfs_comment(FILE *file, type_t *t, unsigned int tfsoff)
939 {
940 print_file(file, 0, "/* %u (", tfsoff);
941 write_type_decl(file, t, NULL);
942 print_file(file, 0, ") */\n");
943 }
944
945 static size_t write_pointer_tfs(FILE *file, type_t *type, unsigned int *typestring_offset)
946 {
947 unsigned int offset = *typestring_offset;
948
949 print_start_tfs_comment(file, type, offset);
950 update_tfsoff(type, offset, file);
951
952 if (type->ref->typestring_offset)
953 *typestring_offset += write_nonsimple_pointer(file, type, offset);
954 else if (is_base_type(type->ref->type))
955 *typestring_offset += write_simple_pointer(file, type);
956
957 return offset;
958 }
959
960 static int processed(const type_t *type)
961 {
962 return type->typestring_offset && !type->tfswrite;
963 }
964
965 static int user_type_has_variable_size(const type_t *t)
966 {
967 if (is_ptr(t))
968 return TRUE;
969 else
970 switch (t->type)
971 {
972 case RPC_FC_PSTRUCT:
973 case RPC_FC_CSTRUCT:
974 case RPC_FC_CPSTRUCT:
975 case RPC_FC_CVSTRUCT:
976 return TRUE;
977 }
978 /* Note: Since this only applies to user types, we can't have a conformant
979 array here, and strings should get filed under pointer in this case. */
980 return FALSE;
981 }
982
983 static void write_user_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
984 {
985 unsigned int start, absoff, flags;
986 unsigned int align = 0, ualign = 0;
987 const char *name = NULL;
988 type_t *utype = get_user_type(type, &name);
989 size_t usize = user_type_has_variable_size(utype) ? 0 : type_memsize(utype, &ualign);
990 size_t size = type_memsize(type, &align);
991 unsigned short funoff = user_type_offset(name);
992 short reloff;
993
994 guard_rec(type);
995
996 if (is_base_type(utype->type))
997 {
998 absoff = *tfsoff;
999 print_start_tfs_comment(file, utype, absoff);
1000 print_file(file, 2, "0x%x,\t/* %s */\n", utype->type, string_of_type(utype->type));
1001 print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
1002 *tfsoff += 2;
1003 }
1004 else
1005 {
1006 if (!processed(utype))
1007 write_embedded_types(file, NULL, utype, utype->name, TRUE, tfsoff);
1008 absoff = utype->typestring_offset;
1009 }
1010
1011 if (utype->type == RPC_FC_RP)
1012 flags = 0x40;
1013 else if (utype->type == RPC_FC_UP)
1014 flags = 0x80;
1015 else
1016 flags = 0;
1017
1018 start = *tfsoff;
1019 update_tfsoff(type, start, file);
1020 print_start_tfs_comment(file, type, start);
1021 print_file(file, 2, "0x%x,\t/* FC_USER_MARSHAL */\n", RPC_FC_USER_MARSHAL);
1022 print_file(file, 2, "0x%x,\t/* Alignment= %d, Flags= %02x */\n",
1023 flags | (align - 1), align - 1, flags);
1024 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Function offset= %hu */\n", funoff, funoff);
1025 print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", size, size);
1026 print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", usize, usize);
1027 *tfsoff += 8;
1028 reloff = absoff - *tfsoff;
1029 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n", reloff, reloff, absoff);
1030 *tfsoff += 2;
1031 }
1032
1033 static void write_member_type(FILE *file, const type_t *cont,
1034 const attr_list_t *attrs, const type_t *type,
1035 unsigned int *corroff, unsigned int *tfsoff)
1036 {
1037 if (is_embedded_complex(type) && !is_conformant_array(type))
1038 {
1039 size_t absoff;
1040 short reloff;
1041
1042 if (is_union(type->type) && is_attr(attrs, ATTR_SWITCHIS))
1043 {
1044 absoff = *corroff;
1045 *corroff += 8;
1046 }
1047 else
1048 {
1049 absoff = type->typestring_offset;
1050 }
1051 reloff = absoff - (*tfsoff + 2);
1052
1053 print_file(file, 2, "0x4c,\t/* FC_EMBEDDED_COMPLEX */\n");
1054 /* FIXME: actually compute necessary padding */
1055 print_file(file, 2, "0x0,\t/* FIXME: padding */\n");
1056 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
1057 reloff, reloff, absoff);
1058 *tfsoff += 4;
1059 }
1060 else if (is_ptr(type) || is_conformant_array(type))
1061 {
1062 unsigned char fc = (cont->type == RPC_FC_BOGUS_STRUCT
1063 ? RPC_FC_POINTER
1064 : RPC_FC_LONG);
1065 print_file(file, 2, "0x%x,\t/* %s */\n", fc, string_of_type(fc));
1066 *tfsoff += 1;
1067 }
1068 else if (!write_base_type(file, type, tfsoff))
1069 error("Unsupported member type 0x%x\n", type->type);
1070 }
1071
1072 static void write_end(FILE *file, unsigned int *tfsoff)
1073 {
1074 if (*tfsoff % 2 == 0)
1075 {
1076 print_file(file, 2, "0x%x,\t\t/* FC_PAD */\n", RPC_FC_PAD);
1077 *tfsoff += 1;
1078 }
1079 print_file(file, 2, "0x%x,\t\t/* FC_END */\n", RPC_FC_END);
1080 *tfsoff += 1;
1081 }
1082
1083 static void write_descriptors(FILE *file, type_t *type, unsigned int *tfsoff)
1084 {
1085 unsigned int offset = 0;
1086 var_list_t *fs = type->fields_or_args;
1087 var_t *f;
1088
1089 if (fs) LIST_FOR_EACH_ENTRY(f, fs, var_t, entry)
1090 {
1091 unsigned int align = 0;
1092 type_t *ft = f->type;
1093 if (is_union(ft->type) && is_attr(f->attrs, ATTR_SWITCHIS))
1094 {
1095 unsigned int absoff = ft->typestring_offset;
1096 short reloff = absoff - (*tfsoff + 6);
1097 print_file(file, 0, "/* %d */\n", *tfsoff);
1098 print_file(file, 2, "0x%x,\t/* %s */\n", ft->type, string_of_type(ft->type));
1099 print_file(file, 2, "0x%x,\t/* FIXME: always FC_LONG */\n", RPC_FC_LONG);
1100 write_conf_or_var_desc(file, current_structure, offset, ft,
1101 get_attrp(f->attrs, ATTR_SWITCHIS));
1102 print_file(file, 2, "NdrFcShort(%hd),\t/* Offset= %hd (%u) */\n",
1103 reloff, reloff, absoff);
1104 *tfsoff += 8;
1105 }
1106
1107 /* FIXME: take alignment into account */
1108 offset += type_memsize(ft, &align);
1109 }
1110 }
1111
1112 static int write_no_repeat_pointer_descriptions(
1113 FILE *file, type_t *type,
1114 size_t *offset_in_memory, size_t *offset_in_buffer,
1115 unsigned int *typestring_offset)
1116 {
1117 int written = 0;
1118 unsigned int align;
1119
1120 if (is_ptr(type) || (!type->declarray && is_conformant_array(type)))
1121 {
1122 size_t memsize;
1123
1124 print_file(file, 2, "0x%02x, /* FC_NO_REPEAT */\n", RPC_FC_NO_REPEAT);
1125 print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);
1126
1127 /* pointer instance */
1128 print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
1129 print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);
1130 *typestring_offset += 6;
1131
1132 if (is_ptr(type))
1133 {
1134 if (is_string_type(type->attrs, type))
1135 write_string_tfs(file, NULL, type, NULL, typestring_offset);
1136 else
1137 write_pointer_tfs(file, type, typestring_offset);
1138 }
1139 else
1140 {
1141 unsigned absoff = type->typestring_offset;
1142 short reloff = absoff - (*typestring_offset + 2);
1143 /* FIXME: get pointer attributes from field */
1144 print_file(file, 2, "0x%02x, 0x0,\t/* %s */\n", RPC_FC_UP, "FC_UP");
1145 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
1146 reloff, reloff, absoff);
1147 *typestring_offset += 4;
1148 }
1149
1150 align = 0;
1151 memsize = type_memsize(type, &align);
1152 *offset_in_memory += memsize;
1153 /* increment these separately as in the case of conformant (varying)
1154 * structures these start at different values */
1155 *offset_in_buffer += memsize;
1156
1157 return 1;
1158 }
1159
1160 if (is_non_complex_struct(type))
1161 {
1162 const var_t *v;
1163 LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
1164 {
1165 if (offset_in_memory && offset_in_buffer)
1166 {
1167 size_t padding;
1168 align = 0;
1169 type_memsize(v->type, &align);
1170 padding = ROUNDING(*offset_in_memory, align);
1171 *offset_in_memory += padding;
1172 *offset_in_buffer += padding;
1173 }
1174 written += write_no_repeat_pointer_descriptions(
1175 file, v->type,
1176 offset_in_memory, offset_in_buffer, typestring_offset);
1177 }
1178 }
1179 else
1180 {
1181 size_t memsize;
1182 align = 0;
1183 memsize = type_memsize(type, &align);
1184 *offset_in_memory += memsize;
1185 /* increment these separately as in the case of conformant (varying)
1186 * structures these start at different values */
1187 *offset_in_buffer += memsize;
1188 }
1189
1190 return written;
1191 }
1192
1193 static int write_pointer_description_offsets(
1194 FILE *file, const attr_list_t *attrs, type_t *type,
1195 size_t *offset_in_memory, size_t *offset_in_buffer,
1196 unsigned int *typestring_offset)
1197 {
1198 int written = 0;
1199 unsigned int align;
1200
1201 if (is_ptr(type) && type->ref->type != RPC_FC_IP)
1202 {
1203 if (offset_in_memory && offset_in_buffer)
1204 {
1205 size_t memsize;
1206
1207 /* pointer instance */
1208 /* FIXME: sometimes from end of structure, sometimes from beginning */
1209 print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
1210 print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);
1211
1212 align = 0;
1213 memsize = type_memsize(type, &align);
1214 *offset_in_memory += memsize;
1215 /* increment these separately as in the case of conformant (varying)
1216 * structures these start at different values */
1217 *offset_in_buffer += memsize;
1218 }
1219 *typestring_offset += 4;
1220
1221 if (is_string_type(attrs, type))
1222 write_string_tfs(file, NULL, type, NULL, typestring_offset);
1223 else if (processed(type->ref) || is_base_type(type->ref->type))
1224 write_pointer_tfs(file, type, typestring_offset);
1225 else
1226 error("write_pointer_description_offsets: type format string unknown\n");
1227
1228 return 1;
1229 }
1230
1231 if (is_array(type))
1232 {
1233 return write_pointer_description_offsets(
1234 file, attrs, type->ref, offset_in_memory, offset_in_buffer,
1235 typestring_offset);
1236 }
1237 else if (is_non_complex_struct(type))
1238 {
1239 /* otherwise search for interesting fields to parse */
1240 const var_t *v;
1241 LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
1242 {
1243 if (offset_in_memory && offset_in_buffer)
1244 {
1245 size_t padding;
1246 align = 0;
1247 type_memsize(v->type, &align);
1248 padding = ROUNDING(*offset_in_memory, align);
1249 *offset_in_memory += padding;
1250 *offset_in_buffer += padding;
1251 }
1252 written += write_pointer_description_offsets(
1253 file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
1254 typestring_offset);
1255 }
1256 }
1257 else
1258 {
1259 if (offset_in_memory && offset_in_buffer)
1260 {
1261 size_t memsize;
1262 align = 0;
1263 memsize = type_memsize(type, &align);
1264 *offset_in_memory += memsize;
1265 /* increment these separately as in the case of conformant (varying)
1266 * structures these start at different values */
1267 *offset_in_buffer += memsize;
1268 }
1269 }
1270
1271 return written;
1272 }
1273
1274 /* Note: if file is NULL return value is number of pointers to write, else
1275 * it is the number of type format characters written */
1276 static int write_fixed_array_pointer_descriptions(
1277 FILE *file, const attr_list_t *attrs, type_t *type,
1278 size_t *offset_in_memory, size_t *offset_in_buffer,
1279 unsigned int *typestring_offset)
1280 {
1281 unsigned int align;
1282 int pointer_count = 0;
1283
1284 if (type->type == RPC_FC_SMFARRAY || type->type == RPC_FC_LGFARRAY)
1285 {
1286 unsigned int temp = 0;
1287 /* unfortunately, this needs to be done in two passes to avoid
1288 * writing out redundant FC_FIXED_REPEAT descriptions */
1289 pointer_count = write_pointer_description_offsets(
1290 NULL, attrs, type->ref, NULL, NULL, &temp);
1291 if (pointer_count > 0)
1292 {
1293 unsigned int increment_size;
1294 size_t offset_of_array_pointer_mem = 0;
1295 size_t offset_of_array_pointer_buf = 0;
1296
1297 align = 0;
1298 increment_size = type_memsize(type->ref, &align);
1299
1300 print_file(file, 2, "0x%02x, /* FC_FIXED_REPEAT */\n", RPC_FC_FIXED_REPEAT);
1301 print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);
1302 print_file(file, 2, "NdrFcShort(0x%x), /* Iterations = %d */\n", type->dim, type->dim);
1303 print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
1304 print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
1305 print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
1306 *typestring_offset += 10;
1307
1308 pointer_count = write_pointer_description_offsets(
1309 file, attrs, type, &offset_of_array_pointer_mem,
1310 &offset_of_array_pointer_buf, typestring_offset);
1311 }
1312 }
1313 else if (is_struct(type->type))
1314 {
1315 const var_t *v;
1316 LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
1317 {
1318 if (offset_in_memory && offset_in_buffer)
1319 {
1320 size_t padding;
1321 align = 0;
1322 type_memsize(v->type, &align);
1323 padding = ROUNDING(*offset_in_memory, align);
1324 *offset_in_memory += padding;
1325 *offset_in_buffer += padding;
1326 }
1327 pointer_count += write_fixed_array_pointer_descriptions(
1328 file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
1329 typestring_offset);
1330 }
1331 }
1332 else
1333 {
1334 if (offset_in_memory && offset_in_buffer)
1335 {
1336 size_t memsize;
1337 align = 0;
1338 memsize = type_memsize(type, &align);
1339 *offset_in_memory += memsize;
1340 /* increment these separately as in the case of conformant (varying)
1341 * structures these start at different values */
1342 *offset_in_buffer += memsize;
1343 }
1344 }
1345
1346 return pointer_count;
1347 }
1348
1349 /* Note: if file is NULL return value is number of pointers to write, else
1350 * it is the number of type format characters written */
1351 static int write_conformant_array_pointer_descriptions(
1352 FILE *file, const attr_list_t *attrs, type_t *type,
1353 size_t offset_in_memory, unsigned int *typestring_offset)
1354 {
1355 unsigned int align;
1356 int pointer_count = 0;
1357
1358 if (is_conformant_array(type) && !type->length_is)
1359 {
1360 unsigned int temp = 0;
1361 /* unfortunately, this needs to be done in two passes to avoid
1362 * writing out redundant FC_VARIABLE_REPEAT descriptions */
1363 pointer_count = write_pointer_description_offsets(
1364 NULL, attrs, type->ref, NULL, NULL, &temp);
1365 if (pointer_count > 0)
1366 {
1367 unsigned int increment_size;
1368 size_t offset_of_array_pointer_mem = offset_in_memory;
1369 size_t offset_of_array_pointer_buf = offset_in_memory;
1370
1371 align = 0;
1372 increment_size = type_memsize(type->ref, &align);
1373
1374 if (increment_size > USHRT_MAX)
1375 error("array size of %u bytes is too large\n", increment_size);
1376
1377 print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
1378 print_file(file, 2, "0x%02x, /* FC_FIXED_OFFSET */\n", RPC_FC_FIXED_OFFSET);
1379 print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
1380 print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", offset_in_memory, offset_in_memory);
1381 print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
1382 *typestring_offset += 8;
1383
1384 pointer_count = write_pointer_description_offsets(
1385 file, attrs, type->ref, &offset_of_array_pointer_mem,
1386 &offset_of_array_pointer_buf, typestring_offset);
1387 }
1388 }
1389
1390 return pointer_count;
1391 }
1392
1393 /* Note: if file is NULL return value is number of pointers to write, else
1394 * it is the number of type format characters written */
1395 static int write_varying_array_pointer_descriptions(
1396 FILE *file, const attr_list_t *attrs, type_t *type,
1397 size_t *offset_in_memory, size_t *offset_in_buffer,
1398 unsigned int *typestring_offset)
1399 {
1400 unsigned int align;
1401 int pointer_count = 0;
1402
1403 if (is_array(type) && type->length_is)
1404 {
1405 unsigned int temp = 0;
1406 /* unfortunately, this needs to be done in two passes to avoid
1407 * writing out redundant FC_VARIABLE_REPEAT descriptions */
1408 pointer_count = write_pointer_description_offsets(
1409 NULL, attrs, type->ref, NULL, NULL, &temp);
1410 if (pointer_count > 0)
1411 {
1412 unsigned int increment_size;
1413
1414 align = 0;
1415 increment_size = type_memsize(type->ref, &align);
1416
1417 if (increment_size > USHRT_MAX)
1418 error("array size of %u bytes is too large\n", increment_size);
1419
1420 print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
1421 print_file(file, 2, "0x%02x, /* FC_VARIABLE_OFFSET */\n", RPC_FC_VARIABLE_OFFSET);
1422 print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
1423 print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
1424 print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
1425 *typestring_offset += 8;
1426
1427 pointer_count = write_pointer_description_offsets(
1428 file, attrs, type, offset_in_memory,
1429 offset_in_buffer, typestring_offset);
1430 }
1431 }
1432 else if (is_struct(type->type))
1433 {
1434 const var_t *v;
1435 LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
1436 {
1437 if (offset_in_memory && offset_in_buffer)
1438 {
1439 size_t padding;
1440
1441 if (is_array(v->type) && v->type->length_is)
1442 {
1443 *offset_in_buffer = ROUND_SIZE(*offset_in_buffer, 4);
1444 /* skip over variance and offset in buffer */
1445 *offset_in_buffer += 8;
1446 }
1447
1448 align = 0;
1449 type_memsize(v->type, &align);
1450 padding = ROUNDING(*offset_in_memory, align);
1451 *offset_in_memory += padding;
1452 *offset_in_buffer += padding;
1453 }
1454 pointer_count += write_varying_array_pointer_descriptions(
1455 file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
1456 typestring_offset);
1457 }
1458 }
1459 else
1460 {
1461 if (offset_in_memory && offset_in_buffer)
1462 {
1463 size_t memsize;
1464 align = 0;
1465 memsize = type_memsize(type, &align);
1466 *offset_in_memory += memsize;
1467 /* increment these separately as in the case of conformant (varying)
1468 * structures these start at different values */
1469 *offset_in_buffer += memsize;
1470 }
1471 }
1472
1473 return pointer_count;
1474 }
1475
1476 static void write_pointer_description(FILE *file, type_t *type,
1477 unsigned int *typestring_offset)
1478 {
1479 size_t offset_in_buffer;
1480 size_t offset_in_memory;
1481
1482 /* pass 1: search for single instance of a pointer (i.e. don't descend
1483 * into arrays) */
1484 if (!is_array(type))
1485 {
1486 offset_in_memory = 0;
1487 offset_in_buffer = 0;
1488 write_no_repeat_pointer_descriptions(
1489 file, type,
1490 &offset_in_memory, &offset_in_buffer, typestring_offset);
1491 }
1492
1493 /* pass 2: search for pointers in fixed arrays */
1494 offset_in_memory = 0;
1495 offset_in_buffer = 0;
1496 write_fixed_array_pointer_descriptions(
1497 file, NULL, type,
1498 &offset_in_memory, &offset_in_buffer, typestring_offset);
1499
1500 /* pass 3: search for pointers in conformant only arrays (but don't descend
1501 * into conformant varying or varying arrays) */
1502 if ((!type->declarray || !current_structure) && is_conformant_array(type))
1503 write_conformant_array_pointer_descriptions(
1504 file, NULL, type, 0, typestring_offset);
1505 else if (type->type == RPC_FC_CPSTRUCT)
1506 {
1507 unsigned int align = 0;
1508 type_t *carray = find_array_or_string_in_struct(type)->type;
1509 write_conformant_array_pointer_descriptions(
1510 file, NULL, carray,
1511 type_memsize(type, &align),
1512 typestring_offset);
1513 }
1514
1515 /* pass 4: search for pointers in varying arrays */
1516 offset_in_memory = 0;
1517 offset_in_buffer = 0;
1518 write_varying_array_pointer_descriptions(
1519 file, NULL, type,
1520 &offset_in_memory, &offset_in_buffer, typestring_offset);
1521 }
1522
1523 int is_declptr(const type_t *t)
1524 {
1525 return is_ptr(t) || (is_conformant_array(t) && !t->declarray);
1526 }
1527
1528 static size_t write_string_tfs(FILE *file, const attr_list_t *attrs,
1529 type_t *type,
1530 const char *name, unsigned int *typestring_offset)
1531 {
1532 size_t start_offset;
1533 unsigned char rtype;
1534
1535 if (is_declptr(type))
1536 {
1537 unsigned char flag = is_conformant_array(type) ? 0 : RPC_FC_P_SIMPLEPOINTER;
1538 int pointer_type = is_ptr(type) ? type->type : get_attrv(attrs, ATTR_POINTERTYPE);
1539 if (!pointer_type)
1540 pointer_type = RPC_FC_RP;
1541 print_start_tfs_comment(file, type, *typestring_offset);
1542 print_file(file, 2,"0x%x, 0x%x,\t/* %s%s */\n",
1543 pointer_type, flag, string_of_type(pointer_type),
1544 flag ? " [simple_pointer]" : "");
1545 *typestring_offset += 2;
1546 if (!flag)
1547 {
1548 print_file(file, 2, "NdrFcShort(0x2),\n");
1549 *typestring_offset += 2;
1550 }
1551 }
1552
1553 start_offset = *typestring_offset;
1554 update_tfsoff(type, start_offset, file);
1555
1556 rtype = type->ref->type;
1557
1558 if ((rtype != RPC_FC_BYTE) && (rtype != RPC_FC_CHAR) && (rtype != RPC_FC_WCHAR))
1559 {
1560 error("write_string_tfs: Unimplemented for type 0x%x of name: %s\n", rtype, name);
1561 return start_offset;
1562 }
1563
1564 if (type->declarray && !is_conformant_array(type))
1565 {
1566 /* FIXME: multi-dimensional array */
1567 if (0xffffuL < type->dim)
1568 error("array size for parameter %s exceeds %u bytes by %lu bytes\n",
1569 name, 0xffffu, type->dim - 0xffffu);
1570
1571 if (rtype == RPC_FC_CHAR)
1572 WRITE_FCTYPE(file, FC_CSTRING, *typestring_offset);
1573 else
1574 WRITE_FCTYPE(file, FC_WSTRING, *typestring_offset);
1575 print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
1576 *typestring_offset += 2;
1577
1578 print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", type->dim, type->dim);
1579 *typestring_offset += 2;
1580
1581 return start_offset;
1582 }
1583 else if (type->size_is)
1584 {
1585 unsigned int align = 0;
1586
1587 if (rtype == RPC_FC_CHAR)
1588 WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
1589 else
1590 WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
1591 print_file(file, 2, "0x%x, /* FC_STRING_SIZED */\n", RPC_FC_STRING_SIZED);
1592 *typestring_offset += 2;
1593
1594 *typestring_offset += write_conf_or_var_desc(
1595 file, current_structure,
1596 (type->declarray && current_structure
1597 ? type_memsize(current_structure, &align)
1598 : 0),
1599 type, type->size_is);
1600
1601 return start_offset;
1602 }
1603 else
1604 {
1605 if (rtype == RPC_FC_WCHAR)
1606 WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
1607 else
1608 WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
1609 print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
1610 *typestring_offset += 2;
1611
1612 return start_offset;
1613 }
1614 }
1615
1616 static size_t write_array_tfs(FILE *file, const attr_list_t *attrs, type_t *type,
1617 const char *name, unsigned int *typestring_offset)
1618 {
1619 const expr_t *length_is = type->length_is;
1620 const expr_t *size_is = type->size_is;
1621 unsigned int align = 0;
1622 size_t size;
1623 size_t start_offset;
1624 int has_pointer;
1625 int pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
1626 unsigned int baseoff
1627 = type->declarray && current_structure
1628 ? type_memsize(current_structure, &align)
1629 : 0;
1630
1631 if (!pointer_type)
1632 pointer_type = RPC_FC_RP;
1633
1634 if (write_embedded_types(file, attrs, type->ref, name, FALSE, typestring_offset))
1635 has_pointer = TRUE;
1636 else
1637 has_pointer = type_has_pointers(type->ref);
1638
1639 align = 0;
1640 size = type_memsize((is_conformant_array(type) ? type->ref : type), &align);
1641
1642 start_offset = *typestring_offset;
1643 update_tfsoff(type, start_offset, file);
1644 print_start_tfs_comment(file, type, start_offset);
1645 print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
1646 print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
1647 *typestring_offset += 2;
1648
1649 align = 0;
1650 if (type->type != RPC_FC_BOGUS_ARRAY)
1651 {
1652 unsigned char tc = type->type;
1653
1654 if (tc == RPC_FC_LGFARRAY || tc == RPC_FC_LGVARRAY)
1655 {
1656 print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", size, size);
1657 *typestring_offset += 4;
1658 }
1659 else
1660 {
1661 print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", size, size);
1662 *typestring_offset += 2;
1663 }
1664
1665 if (is_conformant_array(type))
1666 *typestring_offset
1667 += write_conf_or_var_desc(file, current_structure, baseoff,
1668 type, size_is);
1669
1670 if (type->type == RPC_FC_SMVARRAY || type->type == RPC_FC_LGVARRAY)
1671 {
1672 unsigned int elalign = 0;
1673 size_t elsize = type_memsize(type->ref, &elalign);
1674
1675 if (type->type == RPC_FC_LGVARRAY)
1676 {
1677 print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", type->dim, type->dim);
1678 *typestring_offset += 4;
1679 }
1680 else
1681 {
1682 print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", type->dim, type->dim);
1683 *typestring_offset += 2;
1684 }
1685
1686 print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", elsize, elsize);
1687 *typestring_offset += 2;
1688 }
1689
1690 if (length_is)
1691 *typestring_offset
1692 += write_conf_or_var_desc(file, current_structure, baseoff,
1693 type, length_is);
1694
1695 if (has_pointer && (!type->declarray || !current_structure))
1696 {
1697 print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
1698 print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
1699 *typestring_offset += 2;
1700 write_pointer_description(file, type, typestring_offset);
1701 print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
1702 *typestring_offset += 1;
1703 }
1704
1705 write_member_type(file, type, NULL, type->ref, NULL, typestring_offset);
1706 write_end(file, typestring_offset);
1707 }
1708 else
1709 {
1710 unsigned int dim = size_is ? 0 : type->dim;
1711 print_file(file, 2, "NdrFcShort(0x%x),\t/* %u */\n", dim, dim);
1712 *typestring_offset += 2;
1713 *typestring_offset
1714 += write_conf_or_var_desc(file, current_structure, baseoff,
1715 type, size_is);
1716 *typestring_offset
1717 += write_conf_or_var_desc(file, current_structure, baseoff,
1718 type, length_is);
1719 write_member_type(file, type, NULL, type->ref, NULL, typestring_offset);
1720 write_end(file, typestring_offset);
1721 }
1722
1723 return start_offset;
1724 }
1725
1726 static const var_t *find_array_or_string_in_struct(const type_t *type)
1727 {
1728 const var_t *last_field;
1729 const type_t *ft;
1730
1731 if (!type->fields_or_args || list_empty(type->fields_or_args))
1732 return NULL;
1733
1734 last_field = LIST_ENTRY( list_tail(type->fields_or_args), const var_t, entry );
1735 ft = last_field->type;
1736
1737 if (ft->declarray && is_conformant_array(ft))
1738 return last_field;
1739
1740 if (ft->type == RPC_FC_CSTRUCT || ft->type == RPC_FC_CPSTRUCT || ft->type == RPC_FC_CVSTRUCT)
1741 return find_array_or_string_in_struct(ft);
1742 else
1743 return NULL;
1744 }
1745
1746 static void write_struct_members(FILE *file, const type_t *type,
1747 unsigned int *corroff, unsigned int *typestring_offset)
1748 {
1749 const var_t *field;
1750 unsigned short offset = 0;
1751 int salign = -1;
1752 int padding;
1753
1754 if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
1755 {
1756 type_t *ft = field->type;
1757 if (!ft->declarray || !is_conformant_array(ft))
1758 {
1759 unsigned int align = 0;
1760 size_t size = type_memsize(ft, &align);
1761 if (salign == -1)
1762 salign = align;
1763 if ((align - 1) & offset)
1764 {
1765 unsigned char fc = 0;
1766 switch (align)
1767 {
1768 case 4:
1769 fc = RPC_FC_ALIGNM4;
1770 break;
1771 case 8:
1772 fc = RPC_FC_ALIGNM8;
1773 break;
1774 default:
1775 error("write_struct_members: cannot align type %d\n", ft->type);
1776 }
1777 print_file(file, 2, "0x%x,\t/* %s */\n", fc, string_of_type(fc));
1778 offset = ROUND_SIZE(offset, align);
1779 *typestring_offset += 1;
1780 }
1781 write_member_type(file, type, field->attrs, field->type, corroff,
1782 typestring_offset);
1783 offset += size;
1784 }
1785 }
1786
1787 padding = ROUNDING(offset, salign);
1788 if (padding)
1789 {
1790 print_file(file, 2, "0x%x,\t/* FC_STRUCTPAD%d */\n",
1791 RPC_FC_STRUCTPAD1 + padding - 1,
1792 padding);
1793 *typestring_offset += 1;
1794 }
1795
1796 write_end(file, typestring_offset);
1797 }
1798
1799 static size_t write_struct_tfs(FILE *file, type_t *type,
1800 const char *name, unsigned int *tfsoff)
1801 {
1802 const type_t *save_current_structure = current_structure;
1803 unsigned int total_size;
1804 const var_t *array;
1805 size_t start_offset;
1806 size_t array_offset;
1807 int has_pointers = 0;
1808 unsigned int align = 0;
1809 unsigned int corroff;
1810 var_t *f;
1811
1812 guard_rec(type);
1813 current_structure = type;
1814
1815 total_size = type_memsize(type, &align);
1816 if (total_size > USHRT_MAX)
1817 error("structure size for %s exceeds %d bytes by %d bytes\n",
1818 name, USHRT_MAX, total_size - USHRT_MAX);
1819
1820 if (type->fields_or_args) LIST_FOR_EACH_ENTRY(f, type->fields_or_args, var_t, entry)
1821 has_pointers |= write_embedded_types(file, f->attrs, f->type, f->name,
1822 FALSE, tfsoff);
1823 if (!has_pointers) has_pointers = type_has_pointers(type);
1824
1825 array = find_array_or_string_in_struct(type);
1826 if (array && !processed(array->type))
1827 array_offset
1828 = is_attr(array->attrs, ATTR_STRING)
1829 ? write_string_tfs(file, array->attrs, array->type, array->name, tfsoff)
1830 : write_array_tfs(file, array->attrs, array->type, array->name, tfsoff);
1831
1832 corroff = *tfsoff;
1833 write_descriptors(file, type, tfsoff);
1834
1835 start_offset = *tfsoff;
1836 update_tfsoff(type, start_offset, file);
1837 print_start_tfs_comment(file, type, start_offset);
1838 print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
1839 print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
1840 print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", total_size, total_size);
1841 *tfsoff += 4;
1842
1843 if (array)
1844 {
1845 unsigned int absoff = array->type->typestring_offset;
1846 short reloff = absoff - *tfsoff;
1847 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
1848 reloff, reloff, absoff);
1849 *tfsoff += 2;
1850 }
1851 else if (type->type == RPC_FC_BOGUS_STRUCT)
1852 {
1853 print_file(file, 2, "NdrFcShort(0x0),\n");
1854 *tfsoff += 2;
1855 }
1856
1857 if (type->type == RPC_FC_BOGUS_STRUCT)
1858 {
1859 /* On the sizing pass, type->ptrdesc may be zero, but it's ok as
1860 nothing is written to file yet. On the actual writing pass,
1861 this will have been updated. */
1862 unsigned int absoff = type->ptrdesc ? type->ptrdesc : *tfsoff;
1863 short reloff = absoff - *tfsoff;
1864 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
1865 reloff, reloff, absoff);
1866 *tfsoff += 2;
1867 }
1868 else if ((type->type == RPC_FC_PSTRUCT) ||
1869 (type->type == RPC_FC_CPSTRUCT) ||
1870 (type->type == RPC_FC_CVSTRUCT && has_pointers))
1871 {
1872 print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
1873 print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
1874 *tfsoff += 2;
1875 write_pointer_description(file, type, tfsoff);
1876 print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
1877 *tfsoff += 1;
1878 }
1879
1880 write_struct_members(file, type, &corroff, tfsoff);
1881
1882 if (type->type == RPC_FC_BOGUS_STRUCT)
1883 {
1884 const var_list_t *fs = type->fields_or_args;
1885 const var_t *f;
1886
1887 type->ptrdesc = *tfsoff;
1888 if (fs) LIST_FOR_EACH_ENTRY(f, fs, const var_t, entry)
1889 {
1890 type_t *ft = f->type;
1891 if (is_ptr(ft))
1892 {
1893 if (is_string_type(f->attrs, ft))
1894 write_string_tfs(file, f->attrs, ft, f->name, tfsoff);
1895 else
1896 write_pointer_tfs(file, ft, tfsoff);
1897 }
1898 else if (!ft->declarray && is_conformant_array(ft))
1899 {
1900 unsigned int absoff = ft->typestring_offset;
1901 short reloff = absoff - (*tfsoff + 2);
1902 int ptr_type = get_attrv(f->attrs, ATTR_POINTERTYPE);
1903 /* FIXME: We need to store pointer attributes for arrays
1904 so we don't lose pointer_default info. */
1905 if (ptr_type == 0)
1906 ptr_type = RPC_FC_UP;
1907 print_file(file, 0, "/* %d */\n", *tfsoff);
1908 print_file(file, 2, "0x%x, 0x0,\t/* %s */\n", ptr_type,
1909 string_of_type(ptr_type));
1910 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
1911 reloff, reloff, absoff);
1912 *tfsoff += 4;
1913 }
1914 }
1915 if (type->ptrdesc == *tfsoff)
1916 type->ptrdesc = 0;
1917 }
1918
1919 current_structure = save_current_structure;
1920 return start_offset;
1921 }
1922
1923 static size_t write_pointer_only_tfs(FILE *file, const attr_list_t *attrs, int pointer_type,
1924 unsigned char flags, size_t offset,
1925 unsigned int *typeformat_offset)
1926 {
1927 size_t start_offset = *typeformat_offset;
1928 short reloff = offset - (*typeformat_offset + 2);
1929 int in_attr, out_attr;
1930 in_attr = is_attr(attrs, ATTR_IN);
1931 out_attr = is_attr(attrs, ATTR_OUT);
1932 if (!in_attr && !out_attr) in_attr = 1;
1933
1934 if (out_attr && !in_attr && pointer_type == RPC_FC_RP)
1935 flags |= 0x04;
1936
1937 print_file(file, 2, "0x%x, 0x%x,\t\t/* %s",
1938 pointer_type,
1939 flags,
1940 string_of_type(pointer_type));
1941 if (file)
1942 {
1943 if (flags & 0x04)
1944 fprintf(file, " [allocated_on_stack]");
1945 if (flags & 0x10)
1946 fprintf(file, " [pointer_deref]");
1947 fprintf(file, " */\n");
1948 }
1949
1950 print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", reloff, offset);
1951 *typeformat_offset += 4;
1952
1953 return start_offset;
1954 }
1955
1956 static void write_branch_type(FILE *file, const type_t *t, unsigned int *tfsoff)
1957 {
1958 if (t == NULL)
1959 {
1960 print_file(file, 2, "NdrFcShort(0x0),\t/* No type */\n");
1961 }
1962 else if (is_base_type(t->type))
1963 {
1964 print_file(file, 2, "NdrFcShort(0x80%02x),\t/* Simple arm type: %s */\n",
1965 t->type, string_of_type(t->type));
1966 }
1967 else if (t->typestring_offset)
1968 {
1969 short reloff = t->typestring_offset - *tfsoff;
1970 print_file(file, 2, "NdrFcShort(0x%x),\t/* Offset= %d (%d) */\n",
1971 reloff, reloff, t->typestring_offset);
1972 }
1973 else
1974 error("write_branch_type: type unimplemented (0x%x)\n", t->type);
1975
1976 *tfsoff += 2;
1977 }
1978
1979 static size_t write_union_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
1980 {
1981 unsigned int align = 0;
1982 unsigned int start_offset;
1983 size_t size = type_memsize(type, &align);
1984 var_list_t *fields;
1985 size_t nbranch = 0;
1986 type_t *deftype = NULL;
1987 short nodeftype = 0xffff;
1988 var_t *f;
1989
1990 guard_rec(type);
1991
1992 if (type->type == RPC_FC_ENCAPSULATED_UNION)
1993 {
1994 const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
1995 fields = uv->type->fields_or_args;
1996 }
1997 else
1998 fields = type->fields_or_args;
1999
2000 if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
2001 {
2002 expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
2003 if (cases)
2004 nbranch += list_count(cases);
2005 if (f->type)
2006 write_embedded_types(file, f->attrs, f->type, f->name, TRUE, tfsoff);
2007 }
2008
2009 start_offset = *tfsoff;
2010 update_tfsoff(type, start_offset, file);
2011 print_start_tfs_comment(file, type, start_offset);
2012 if (type->type == RPC_FC_ENCAPSULATED_UNION)
2013 {
2014 const var_t *sv = LIST_ENTRY(list_head(type->fields_or_args), const var_t, entry);
2015 const type_t *st = sv->type;
2016
2017 switch (st->type)
2018 {
2019 case RPC_FC_CHAR:
2020 case RPC_FC_SMALL:
2021 case RPC_FC_USMALL:
2022 case RPC_FC_SHORT:
2023 case RPC_FC_USHORT:
2024 case RPC_FC_LONG:
2025 case RPC_FC_ULONG:
2026 case RPC_FC_ENUM16:
2027 case RPC_FC_ENUM32:
2028 print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
2029 print_file(file, 2, "0x%x,\t/* Switch type= %s */\n",
2030 0x40 | st->type, string_of_type(st->type));
2031 *tfsoff += 2;
2032 break;
2033 default:
2034 error("union switch type must be an integer, char, or enum\n");
2035 }
2036 }
2037 else if (is_attr(type->attrs, ATTR_SWITCHTYPE))
2038 {
2039 static const expr_t dummy_expr; /* FIXME */
2040 const type_t *st = get_attrp(type->attrs, ATTR_SWITCHTYPE);
2041
2042 switch (st->type)
2043 {
2044 case RPC_FC_CHAR:
2045 case RPC_FC_SMALL:
2046 case RPC_FC_USMALL:
2047 case RPC_FC_SHORT:
2048 case RPC_FC_USHORT:
2049 case RPC_FC_LONG:
2050 case RPC_FC_ULONG:
2051 case RPC_FC_ENUM16:
2052 case RPC_FC_ENUM32:
2053 print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
2054 print_file(file, 2, "0x%x,\t/* Switch type= %s */\n",
2055 st->type, string_of_type(st->type));
2056 *tfsoff += 2;
2057 break;
2058 default:
2059 error("union switch type must be an integer, char, or enum\n");
2060 }
2061
2062 *tfsoff += write_conf_or_var_desc(file, NULL, *tfsoff, st, &dummy_expr );
2063 }
2064
2065 print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", size, size);
2066 print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", nbranch, nbranch);
2067 *tfsoff += 4;
2068
2069 if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
2070 {
2071 type_t *ft = f->type;
2072 expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
2073 int deflt = is_attr(f->attrs, ATTR_DEFAULT);
2074 expr_t *c;
2075
2076 if (cases == NULL && !deflt)
2077 error("union field %s with neither case nor default attribute\n", f->name);
2078
2079 if (cases) LIST_FOR_EACH_ENTRY(c, cases, expr_t, entry)
2080 {
2081 /* MIDL doesn't check for duplicate cases, even though that seems
2082 like a reasonable thing to do, it just dumps them to the TFS
2083 like we're going to do here. */
2084 print_file(file, 2, "NdrFcLong(0x%x),\t/* %d */\n", c->cval, c->cval);
2085 *tfsoff += 4;
2086 write_branch_type(file, ft, tfsoff);
2087 }
2088
2089 /* MIDL allows multiple default branches, even though that seems
2090 illogical, it just chooses the last one, which is what we will
2091 do. */
2092 if (deflt)
2093 {
2094 deftype = ft;
2095 nodeftype = 0;
2096 }
2097 }
2098
2099 if (deftype)
2100 {
2101 write_branch_type(file, deftype, tfsoff);
2102 }
2103 else
2104 {
2105 print_file(file, 2, "NdrFcShort(0x%x),\n", nodeftype);
2106 *tfsoff += 2;
2107 }
2108
2109 return start_offset;
2110 }
2111
2112 static size_t write_ip_tfs(FILE *file, const attr_list_t *attrs, type_t *type,
2113 unsigned int *typeformat_offset)
2114 {
2115 size_t i;
2116 size_t start_offset = *typeformat_offset;
2117 expr_t *iid = get_attrp(attrs, ATTR_IIDIS);
2118
2119 if (iid)
2120 {
2121 print_file(file, 2, "0x2f, /* FC_IP */\n");
2122 print_file(file, 2, "0x5c, /* FC_PAD */\n");
2123 *typeformat_offset
2124 += write_conf_or_var_desc(file, NULL, 0, type, iid) + 2;
2125 }
2126 else
2127 {
2128 const type_t *base = is_ptr(type) ? type->ref : type;
2129 const UUID *uuid = get_attrp(base->attrs, ATTR_UUID);
2130
2131 if (! uuid)
2132 error("%s: interface %s missing UUID\n", __FUNCTION__, base->name);
2133
2134 update_tfsoff(type, start_offset, file);
2135 print_start_tfs_comment(file, type, start_offset);
2136 print_file(file, 2, "0x2f,\t/* FC_IP */\n");
2137 print_file(file, 2, "0x5a,\t/* FC_CONSTANT_IID */\n");
2138 print_file(file, 2, "NdrFcLong(0x%08lx),\n", uuid->Data1);
2139 print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data2);
2140 print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data3);
2141 for (i = 0; i < 8; ++i)
2142 print_file(file, 2, "0x%02x,\n", uuid->Data4[i]);
2143
2144 if (file)
2145 fprintf(file, "\n");
2146
2147 *typeformat_offset += 18;
2148 }
2149 return start_offset;
2150 }
2151
2152 static size_t write_contexthandle_tfs(FILE *file, const type_t *type,
2153 const var_t *var,
2154 unsigned int *typeformat_offset)
2155 {
2156 size_t start_offset = *typeformat_offset;
2157 unsigned char flags = 0;
2158
2159 if (is_attr(current_iface->attrs, ATTR_STRICTCONTEXTHANDLE))
2160 flags |= NDR_STRICT_CONTEXT_HANDLE;
2161
2162 if (is_ptr(type))
2163 flags |= 0x80;
2164 if (is_attr(var->attrs, ATTR_IN))
2165 {
2166 flags |= 0x40;
2167 if (!is_attr(var->attrs, ATTR_OUT))
2168 flags |= NDR_CONTEXT_HANDLE_CANNOT_BE_NULL;
2169 }
2170 if (is_attr(var->attrs, ATTR_OUT))
2171 flags |= 0x20;
2172
2173 WRITE_FCTYPE(file, FC_BIND_CONTEXT, *typeformat_offset);
2174 print_file(file, 2, "0x%x,\t/* Context flags: ", flags);
2175 /* return and can't be null values overlap */
2176 if (((flags & 0x21) != 0x21) && (flags & NDR_CONTEXT_HANDLE_CANNOT_BE_NULL))
2177 print_file(file, 0, "can't be null, ");
2178 if (flags & NDR_CONTEXT_HANDLE_SERIALIZE)
2179 print_file(file, 0, "serialize, ");
2180 if (flags & NDR_CONTEXT_HANDLE_NO_SERIALIZE)
2181 print_file(file, 0, "no serialize, ");
2182 if (flags & NDR_STRICT_CONTEXT_HANDLE)
2183 print_file(file, 0, "strict, ");
2184 if ((flags & 0x21) == 0x20)
2185 print_file(file, 0, "out, ");
2186 if ((flags & 0x21) == 0x21)
2187 print_file(file, 0, "return, ");
2188 if (flags & 0x40)
2189 print_file(file, 0, "in, ");
2190 if (flags & 0x80)
2191 print_file(file, 0, "via ptr, ");
2192 print_file(file, 0, "*/\n");
2193 print_file(file, 2, "0, /* FIXME: rundown routine index*/\n");
2194 print_file(file, 2, "0, /* FIXME: param num */\n");
2195 *typeformat_offset += 4;
2196
2197 return start_offset;
2198 }
2199
2200 static size_t write_typeformatstring_var(FILE *file, int indent, const func_t *func,
2201 type_t *type, const var_t *var,
2202 unsigned int *typeformat_offset)
2203 {
2204 size_t offset;
2205
2206 if (is_context_handle(type))
2207 return write_contexthandle_tfs(file, type, var, typeformat_offset);
2208
2209 if (is_user_type(type))
2210 {
2211 write_user_tfs(file, type, typeformat_offset);
2212 return type->typestring_offset;
2213 }
2214
2215 if (is_string_type(var->attrs, type))
2216 return write_string_tfs(file, var->attrs, type, var->name, typeformat_offset);
2217
2218 if (is_array(type))
2219 {
2220 int ptr_type;
2221 size_t off;
2222 off = write_array_tfs(file, var->attrs, type, var->name, typeformat_offset);
2223 ptr_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
2224 /* Top level pointers to conformant arrays may be handled specially
2225 since we can bypass the pointer, but if the array is buried
2226 beneath another pointer (e.g., "[size_is(,n)] int **p" then we
2227 always need to write the pointer. */
2228 if (!ptr_type && var->type != type)
2229 /* FIXME: This should use pointer_default, but the information
2230 isn't kept around for arrays. */
2231 ptr_type = RPC_FC_UP;
2232 if (ptr_type && ptr_type != RPC_FC_RP)
2233 {
2234 unsigned int absoff = type->typestring_offset;
2235 short reloff = absoff - (*typeformat_offset + 2);
2236 off = *typeformat_offset;
2237 print_file(file, 0, "/* %d */\n", off);
2238 print_file(file, 2, "0x%x, 0x0,\t/* %s */\n", ptr_type,
2239 string_of_type(ptr_type));
2240 print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
2241 reloff, reloff, absoff);
2242 *typeformat_offset += 4;
2243 }
2244 return off;
2245 }
2246
2247 if (!is_ptr(type))
2248 {
2249 /* basic types don't need a type format string */
2250 if (is_base_type(type->type))
2251 return 0;
2252
2253 switch (type->type)
2254 {
2255 case RPC_FC_STRUCT:
2256 case RPC_FC_PSTRUCT:
2257 case RPC_FC_CSTRUCT:
2258 case RPC_FC_CPSTRUCT:
2259 case RPC_FC_CVSTRUCT:
2260 case RPC_FC_BOGUS_STRUCT:
2261 return write_struct_tfs(file, type, var->name, typeformat_offset);
2262 case RPC_FC_ENCAPSULATED_UNION:
2263 case RPC_FC_NON_ENCAPSULATED_UNION:
2264 return write_union_tfs(file, type, typeformat_offset);
2265 case RPC_FC_IGNORE:
2266 case RPC_FC_BIND_PRIMITIVE:
2267 /* nothing to do */
2268 return 0;
2269 default:
2270 error("write_typeformatstring_var: Unsupported type 0x%x for variable %s\n", type->type, var->name);
2271 }
2272 }
2273 else if (last_ptr(type))
2274 {
2275 size_t start_offset = *typeformat_offset;
2276 int in_attr = is_attr(var->attrs, ATTR_IN);
2277 int out_attr = is_attr(var->attrs, ATTR_OUT);
2278 const type_t *base = type->ref;
2279
2280 if (base->type == RPC_FC_IP
2281 || (base->type == 0
2282 && is_attr(var->attrs, ATTR_IIDIS)))
2283 {
2284 return write_ip_tfs(file, var->attrs, type, typeformat_offset);
2285 }
2286
2287 /* special case for pointers to base types */
2288 if (is_base_type(base->type))
2289 {
2290 print_file(file, indent, "0x%x, 0x%x, /* %s %s[simple_pointer] */\n",
2291 type->type, (!in_attr && out_attr) ? 0x0C : 0x08,
2292 string_of_type(type->type),
2293 (!in_attr && out_attr) ? "[allocated_on_stack] " : "");
2294 print_file(file, indent, "0x%02x, /* %s */\n", base->type, string_of_type(base->type));
2295 print_file(file, indent, "0x5c, /* FC_PAD */\n");
2296 *typeformat_offset += 4;
2297 return start_offset;
2298 }
2299 }
2300
2301 assert(is_ptr(type));
2302
2303 offset = write_typeformatstring_var(file, indent, func, type->ref, var, typeformat_offset);
2304 if (file)
2305 fprintf(file, "/* %2u */\n", *typeformat_offset);
2306 return write_pointer_only_tfs(file, var->attrs, type->type,
2307 !last_ptr(type) ? 0x10 : 0,
2308 offset, typeformat_offset);
2309 }
2310
2311 static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
2312 const char *name, int write_ptr, unsigned int *tfsoff)
2313 {
2314 int retmask = 0;
2315
2316 if (is_user_type(type))
2317 {
2318 write_user_tfs(file, type, tfsoff);
2319 }
2320 else if (is_string_type(attrs, type))
2321 {
2322 write_string_tfs(file, attrs, type, name, tfsoff);
2323 }
2324 else if (is_ptr(type))
2325 {
2326 type_t *ref = type->ref;
2327
2328 if (ref->type == RPC_FC_IP
2329 || (ref->type == 0
2330 && is_attr(attrs, ATTR_IIDIS)))
2331 {
2332 write_ip_tfs(file, attrs, type, tfsoff);
2333 }
2334 else
2335 {
2336 if (!processed(ref) && !is_base_type(ref->type))
2337 retmask |= write_embedded_types(file, NULL, ref, name, TRUE, tfsoff);
2338
2339 if (write_ptr)
2340 write_pointer_tfs(file, type, tfsoff);
2341
2342 retmask |= 1;
2343 }
2344 }
2345 else if (type->declarray && is_conformant_array(type))
2346 ; /* conformant arrays and strings are handled specially */
2347 else if (is_array(type))
2348 {
2349 write_array_tfs(file, attrs, type, name, tfsoff);
2350 if (is_conformant_array(type))
2351 retmask |= 1;
2352 }
2353 else if (is_struct(type->type))
2354 {
2355 if (!processed(type))
2356 write_struct_tfs(file, type, name, tfsoff);
2357 }
2358 else if (is_union(type->type))
2359 {
2360 if (!processed(type))
2361 write_union_tfs(file, type, tfsoff);
2362 }
2363 else if (!is_base_type(type->type))
2364 error("write_embedded_types: unknown embedded type for %s (0x%x)\n",
2365 name, type->type);
2366
2367 return retmask;
2368 }
2369
2370 static size_t process_tfs_stmts(FILE *file, const statement_list_t *stmts,
2371 type_pred_t pred, unsigned int *typeformat_offset)
2372 {
2373 const var_t *var;
2374 const statement_t *stmt;
2375
2376 if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
2377 {
2378 const type_t *iface;
2379 if (stmt->type == STMT_LIBRARY)
2380 {
2381 process_tfs_stmts(file, stmt->u.lib->stmts, pred, typeformat_offset);
2382 continue;
2383 }
2384 else if (stmt->type != STMT_TYPE || stmt->u.type->type != RPC_FC_IP)
2385 continue;
2386
2387 iface = stmt->u.type;
2388 if (!pred(iface))
2389 continue;
2390
2391 if (iface->funcs)
2392 {
2393 const func_t *func;
2394 current_iface = iface;
2395 LIST_FOR_EACH_ENTRY( func, iface->funcs, const func_t, entry )
2396 {
2397 if (is_local(func->def->attrs)) continue;
2398
2399 if (!is_void(get_func_return_type(func)))
2400 {
2401 var_t v = *func->def;
2402 v.type = get_func_return_type(func);
2403 update_tfsoff(get_func_return_type(func),
2404 write_typeformatstring_var(
2405 file, 2, NULL, get_func_return_type(func),
2406 &v, typeformat_offset),
2407 file);
2408 }
2409
2410 current_func = func;
2411 if (func->args)
2412 LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
2413 update_tfsoff(
2414 var->type,
2415 write_typeformatstring_var(
2416 file, 2, func, var->type, var,
2417 typeformat_offset),
2418 file);
2419 }
2420 }
2421 }
2422
2423 return *typeformat_offset + 1;
2424 }
2425
2426 static size_t process_tfs(FILE *file, const statement_list_t *stmts, type_pred_t pred)
2427 {
2428 unsigned int typeformat_offset = 2;
2429
2430 return process_tfs_stmts(file, stmts, pred, &typeformat_offset);
2431 }
2432
2433
2434 void write_typeformatstring(FILE *file, const statement_list_t *stmts, type_pred_t pred)
2435 {
2436 int indent = 0;
2437
2438 print_file(file, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =\n");
2439 print_file(file, indent, "{\n");
2440 indent++;
2441 print_file(file, indent, "0,\n");
2442 print_file(file, indent, "{\n");
2443 indent++;
2444 print_file(file, indent, "NdrFcShort(0x0),\n");
2445
2446 set_all_tfswrite(TRUE);
2447 process_tfs(file, stmts, pred);
2448
2449 print_file(file, indent, "0x0\n");
2450 indent--;
2451 print_file(file, indent, "}\n");
2452 indent--;
2453 print_file(file, indent, "};\n");
2454 print_file(file, indent, "\n");
2455 }
2456
2457 static unsigned int get_required_buffer_size_type(
2458 const type_t *type, const char *name, unsigned int *alignment)
2459 {
2460 const char *uname;
2461 const type_t *utype;
2462
2463 *alignment = 0;
2464 if ((utype = get_user_type(type, &uname)))
2465 {
2466 return get_required_buffer_size_type(utype, uname, alignment);
2467 }
2468 else
2469 {
2470 switch (type->type)
2471 {
2472 case RPC_FC_BYTE:
2473 case RPC_FC_CHAR:
2474 case RPC_FC_USMALL:
2475 case RPC_FC_SMALL:
2476 *alignment = 4;
2477 return 1;
2478
2479 case RPC_FC_WCHAR:
2480 case RPC_FC_USHORT:
2481 case RPC_FC_SHORT:
2482 case RPC_FC_ENUM16:
2483 *alignment = 4;
2484 return 2;
2485
2486 case RPC_FC_ULONG:
2487 case RPC_FC_LONG:
2488 case RPC_FC_ENUM32:
2489 case RPC_FC_FLOAT:
2490 case RPC_FC_ERROR_STATUS_T:
2491 *alignment = 4;
2492 return 4;
2493
2494 case RPC_FC_HYPER:
2495 case RPC_FC_DOUBLE:
2496 *alignment = 8;
2497 return 8;
2498
2499 case RPC_FC_IGNORE:
2500 case RPC_FC_BIND_PRIMITIVE:
2501 return 0;
2502
2503 case RPC_FC_STRUCT:
2504 case RPC_FC_PSTRUCT:
2505 {
2506 size_t size = 0;
2507 const var_t *field;
2508 if (!type->fields_or_args) return 0;
2509 LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2510 {
2511 unsigned int alignment;
2512 size += get_required_buffer_size_type(field->type, field->name,
2513 &alignment);
2514 }
2515 return size;
2516 }
2517
2518 case RPC_FC_RP:
2519 return
2520 is_base_type( type->ref->type ) || type->ref->type == RPC_FC_STRUCT
2521 ? get_required_buffer_size_type( type->ref, name, alignment )
2522 : 0;
2523
2524 case RPC_FC_SMFARRAY:
2525 case RPC_FC_LGFARRAY:
2526 return type->dim * get_required_buffer_size_type(type->ref, name, alignment);
2527
2528 default:
2529 return 0;
2530 }
2531 }
2532 }
2533
2534 static unsigned int get_required_buffer_size(const var_t *var, unsigned int *alignment, enum pass pass)
2535 {
2536 int in_attr = is_attr(var->attrs, ATTR_IN);
2537 int out_attr = is_attr(var->attrs, ATTR_OUT);
2538 const type_t *t;
2539
2540 if (!in_attr && !out_attr)
2541 in_attr = 1;
2542
2543 *alignment = 0;
2544
2545 for (t = var->type; is_ptr(t); t = t->ref)
2546 if (is_attr(t->attrs, ATTR_CONTEXTHANDLE))
2547 {
2548 *alignment = 4;
2549 return 20;
2550 }
2551
2552 if (pass == PASS_OUT)
2553 {
2554 if (out_attr && is_ptr(var->type))
2555 {
2556 type_t *type = var->type;
2557
2558 if (type->type == RPC_FC_STRUCT)
2559 {
2560 const var_t *field;
2561 unsigned int size = 36;
2562
2563 if (!type->fields_or_args) return size;
2564 LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2565 {
2566 unsigned int align;
2567 size += get_required_buffer_size_type(
2568 field->type, field->name, &align);
2569 }
2570 return size;
2571 }
2572 }
2573 return 0;
2574 }
2575 else
2576 {
2577 if ((!out_attr || in_attr) && !var->type->size_is
2578 && !is_attr(var->attrs, ATTR_STRING) && !var->type->declarray)
2579 {
2580 if (is_ptr(var->type))
2581 {
2582 type_t *type = var->type;
2583
2584 if (is_base_type(type->type))
2585 {
2586 return 25;
2587 }
2588 else if (type->type == RPC_FC_STRUCT)
2589 {
2590 unsigned int size = 36;
2591 const var_t *field;
2592
2593 if (!type->fields_or_args) return size;
2594 LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2595 {
2596 unsigned int align;
2597 size += get_required_buffer_size_type(
2598 field->type, field->name, &align);
2599 }
2600 return size;
2601 }
2602 }
2603 }
2604
2605 return get_required_buffer_size_type(var->type, var->name, alignment);
2606 }
2607 }
2608
2609 static unsigned int get_function_buffer_size( const func_t *func, enum pass pass )
2610 {
2611 const var_t *var;
2612 unsigned int total_size = 0, alignment;
2613
2614 if (func->args)
2615 {
2616 LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
2617 {
2618 total_size += get_required_buffer_size(var, &alignment, pass);
2619 total_size += alignment;
2620 }
2621 }
2622
2623 if (pass == PASS_OUT && !is_void(get_func_return_type(func)))
2624 {
2625 var_t v = *func->def;
2626 v.type = get_func_return_type(func);
2627 total_size += get_required_buffer_size(&v, &alignment, PASS_RETURN);
2628 total_size += alignment;
2629 }
2630 return total_size;
2631 }
2632
2633 static void print_phase_function(FILE *file, int indent, const char *type,
2634 enum remoting_phase phase,
2635 const var_t *var, unsigned int type_offset)
2636 {
2637 const char *function;
2638 switch (phase)
2639 {
2640 case PHASE_BUFFERSIZE:
2641 function = "BufferSize";
2642 break;
2643 case PHASE_MARSHAL:
2644 function = "Marshall";
2645 break;
2646 case PHASE_UNMARSHAL:
2647 function = "Unmarshall";
2648 break;
2649 case PHASE_FREE:
2650 function = "Free";
2651 break;
2652 default:
2653 assert(0);
2654 return;
2655 }
2656
2657 print_file(file, indent, "Ndr%s%s(\n", type, function);
2658 indent++;
2659 print_file(file, indent, "&_StubMsg,\n");
2660 print_file(file, indent, "%s%s%s%s,\n",
2661 (phase == PHASE_UNMARSHAL) ? "(unsigned char **)" : "(unsigned char *)",
2662 (phase == PHASE_UNMARSHAL || decl_indirect(var->type)) ? "&" : "",
2663 (phase == PHASE_UNMARSHAL && decl_indirect(var->type)) ? "_p_" : "",
2664 var->name);
2665 print_file(file, indent, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]%s\n",
2666 type_offset, (phase == PHASE_UNMARSHAL) ? "," : ");");
2667 if (phase == PHASE_UNMARSHAL)
2668 print_file(file, indent, "0);\n");
2669 indent--;
2670 }
2671
2672 void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase,
2673 enum pass pass, const var_t *var,
2674 const char *varname)
2675 {
2676 type_t *type = var->type;
2677 unsigned int size;
2678 unsigned int alignment = 0;
2679 unsigned char rtype;
2680
2681 /* no work to do for other phases, buffer sizing is done elsewhere */
2682 if (phase != PHASE_MARSHAL && phase != PHASE_UNMARSHAL)
2683 return;
2684
2685 rtype = is_ptr(type) ? type->ref->type : type->type;
2686
2687 switch (rtype)
2688 {
2689 case RPC_FC_BYTE:
2690 case RPC_FC_CHAR:
2691 case RPC_FC_SMALL:
2692 case RPC_FC_USMALL:
2693 size = 1;
2694 alignment = 1;
2695 break;
2696
2697 case RPC_FC_WCHAR:
2698 case RPC_FC_USHORT:
2699 case RPC_FC_SHORT:
2700 case RPC_FC_ENUM16:
2701 size = 2;
2702 alignment = 2;
2703 break;
2704
2705 case RPC_FC_ULONG:
2706 case RPC_FC_LONG:
2707 case RPC_FC_ENUM32:
2708 case RPC_FC_FLOAT:
2709 case RPC_FC_ERROR_STATUS_T:
2710 size = 4;
2711 alignment = 4;
2712 break;
2713
2714 case RPC_FC_HYPER:
2715 case RPC_FC_DOUBLE:
2716 size = 8;
2717 alignment = 8;
2718 break;
2719
2720 case RPC_FC_IGNORE:
2721 case RPC_FC_BIND_PRIMITIVE:
2722 /* no marshalling needed */
2723 return;
2724
2725 default:
2726 error("print_phase_basetype: Unsupported type: %s (0x%02x, ptr_level: 0)\n", var->name, rtype);
2727 size = 0;
2728 }
2729
2730 if (phase == PHASE_MARSHAL)
2731 print_file(file, indent, "MIDL_memset(_StubMsg.Buffer, 0, (0x%x - (size_t)_StubMsg.Buffer) & 0x%x);\n", alignment, alignment - 1);
2732 print_file(file, indent, "_StubMsg.Buffer = (unsigned char *)(((size_t)_StubMsg.Buffer + %u) & ~0x%x);\n",
2733 alignment - 1, alignment - 1);
2734
2735 if (phase == PHASE_MARSHAL)
2736 {
2737 print_file(file, indent, "*(");
2738 write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
2739 if (is_ptr(type))
2740 fprintf(file, " *)_StubMsg.Buffer = *");
2741 else
2742 fprintf(file, " *)_StubMsg.Buffer = ");
2743 fprintf(file, "%s", varname);
2744 fprintf(file, ";\n");
2745 }
2746 else if (phase == PHASE_UNMARSHAL)
2747 {
2748 print_file(file, indent, "if (_StubMsg.Buffer + sizeof(");
2749 write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
2750 fprintf(file, ") > _StubMsg.BufferEnd)\n");
2751 print_file(file, indent, "{\n");
2752 print_file(file, indent + 1, "RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
2753 print_file(file, indent, "}\n");
2754 if (pass == PASS_IN || pass == PASS_RETURN)
2755 print_file(file, indent, "");
2756 else
2757 print_file(file, indent, "*");
2758 fprintf(file, "%s", varname);
2759 if (pass == PASS_IN && is_ptr(type))
2760 fprintf(file, " = (");
2761 else
2762 fprintf(file, " = *(");
2763 write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
2764 fprintf(file, " *)_StubMsg.Buffer;\n");
2765 }
2766
2767 print_file(file, indent, "_StubMsg.Buffer += sizeof(");
2768 write_type_decl(file, var->type, NULL);
2769 fprintf(file, ");\n");
2770 }
2771
2772 /* returns whether the MaxCount, Offset or ActualCount members need to be
2773 * filled in for the specified phase */
2774 static inline int is_conformance_needed_for_phase(enum remoting_phase phase)
2775 {
2776 return (phase != PHASE_UNMARSHAL);
2777 }
2778
2779 expr_t *get_size_is_expr(const type_t *t, const char *name)
2780 {
2781 expr_t *x = NULL;
2782
2783 for ( ; is_ptr(t) || is_array(t); t = t->ref)
2784 if (t->size_is)
2785 {
2786 if (!x)
2787 x = t->size_is;
2788 else
2789 error("%s: multidimensional conformant"
2790 " arrays not supported at the top level\n",
2791 name);
2792 }
2793
2794 return x;
2795 }
2796
2797 static void write_parameter_conf_or_var_exprs(FILE *file, int indent,
2798 enum remoting_phase phase,
2799 const var_t *var)
2800 {
2801 const type_t *type = var->type;
2802 /* get fundamental type for the argument */
2803 for (;;)
2804 {
2805 if (is_attr(type->attrs, ATTR_WIREMARSHAL))
2806 break;
2807 else if (is_attr(type->attrs, ATTR_CONTEXTHANDLE))
2808 break;
2809 else if (is_array(type) || is_string_type(var->attrs, type))
2810 {
2811 if (is_conformance_needed_for_phase(phase))
2812 {
2813 if (type->size_is)
2814 {
2815 print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
2816 write_expr(file, type->size_is, 1, 1, NULL, NULL);
2817 fprintf(file, ";\n\n");
2818 }
2819 if (type->length_is)
2820 {
2821 print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
2822 print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
2823 write_expr(file, type->length_is, 1, 1, NULL, NULL);
2824 fprintf(file, ";\n\n");
2825 }
2826 }
2827 break;
2828 }
2829 else if (type->type == RPC_FC_NON_ENCAPSULATED_UNION)
2830 {
2831 if (is_conformance_needed_for_phase(phase))
2832 {
2833 print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
2834 write_expr(file, get_attrp(var->attrs, ATTR_SWITCHIS), 1, 1, NULL, NULL);
2835 fprintf(file, ";\n\n");
2836 }
2837 break;
2838 }
2839 else if (type->type == RPC_FC_IP)
2840 {
2841 expr_t *iid;
2842
2843 if (is_conformance_needed_for_phase(phase) && (iid = get_attrp( var->attrs, ATTR_IIDIS )))
2844 {
2845 print_file( file, indent, "_StubMsg.MaxCount = (unsigned long) " );
2846 write_expr( file, iid, 1, 1, NULL, NULL );
2847 fprintf( file, ";\n\n" );
2848 }
2849 break;
2850 }
2851 else if (is_ptr(type))
2852 type = type->ref;
2853 else
2854 break;
2855 }
2856 }
2857
2858 static void write_remoting_arg(FILE *file, int indent, const func_t *func,
2859 enum pass pass, enum remoting_phase phase,
2860 const var_t *var)
2861 {
2862 int in_attr, out_attr, pointer_type;
2863 const type_t *type = var->type;
2864 unsigned char rtype;
2865 size_t start_offset = type->typestring_offset;
2866
2867 pointer_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
2868 if (!pointer_type)
2869 pointer_type = RPC_FC_RP;
2870
2871 in_attr = is_attr(var->attrs, ATTR_IN);
2872 out_attr = is_attr(var->attrs, ATTR_OUT);
2873 if (!in_attr && !out_attr)
2874 in_attr = 1;
2875
2876 if (phase != PHASE_FREE)
2877 switch (pass)
2878 {
2879 case PASS_IN:
2880 if (!in_attr) return;
2881 break;
2882 case PASS_OUT:
2883 if (!out_attr) return;
2884 break;
2885 case PASS_RETURN:
2886 break;
2887 }
2888
2889 write_parameter_conf_or_var_exprs(file, indent, phase, var);
2890 rtype = type->type;
2891
2892 if (is_context_handle(type))
2893 {
2894 if (phase == PHASE_MARSHAL)
2895 {
2896 if (pass == PASS_IN)
2897 {
2898 /* if the context_handle attribute appears in the chain of types
2899 * without pointers being followed, then the context handle must
2900 * be direct, otherwise it is a pointer */
2901 int is_ch_ptr = is_aliaschain_attr(type, ATTR_CONTEXTHANDLE) ? FALSE : TRUE;
2902 print_file(file, indent, "NdrClientContextMarshall(\n");
2903 print_file(file, indent + 1, "&_StubMsg,\n");
2904 print_file(file, indent + 1, "(NDR_CCONTEXT)%s%s,\n", is_ch_ptr ? "*" : "", var->name);
2905 print_file(file, indent + 1, "%s);\n", in_attr && out_attr ? "1" : "0");
2906 }
2907 else
2908 {
2909 print_file(file, indent, "NdrServerContextNewMarshall(\n");
2910 print_file(file, indent + 1, "&_StubMsg,\n");
2911 print_file(file, indent + 1, "(NDR_SCONTEXT)%s,\n", var->name);
2912 print_file(file, indent + 1, "(NDR_RUNDOWN)%s_rundown,\n", get_context_handle_type_name(var->type));
2913 print_file(file, indent + 1, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]);\n", start_offset);
2914 }
2915 }
2916 else if (phase == PHASE_UNMARSHAL)
2917 {
2918 if (pass == PASS_OUT)
2919 {
2920 if (!in_attr)
2921 print_file(file, indent, "*%s = 0;\n", var->name);
2922 print_file(file, indent, "NdrClientContextUnmarshall(\n");
2923 print_file(file, indent + 1, "&_StubMsg,\n");
2924 print_file(file, indent + 1, "(NDR_CCONTEXT *)%s,\n", var->name);
2925 print_file(file, indent + 1, "_Handle);\n");
2926 }
2927 else
2928 {
2929 print_file(file, indent, "%s = NdrServerContextNewUnmarshall(\n", var->name);
2930 print_file(file, indent + 1, "&_StubMsg,\n");
2931 print_file(file, indent + 1, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]);\n", start_offset);
2932 }
2933 }
2934 }
2935 else if (is_user_type(var->type))
2936 {
2937 print_phase_function(file, indent, "UserMarshal", phase, var, start_offset);
2938 }
2939 else if (is_string_type(var->attrs, var->type))
2940 {
2941 if (is_array(type) && !is_conformant_array(type))
2942 print_phase_function(file, indent, "NonConformantString", phase, var, start_offset);
2943 else
2944 {
2945 if (phase == PHASE_FREE || pass == PASS_RETURN || pointer_type == RPC_FC_UP)
2946 print_phase_function(file, indent, "Pointer", phase, var,
2947 start_offset - (type->size_is ? 4 : 2));
2948 else
2949 print_phase_function(file, indent, "ConformantString", phase, var,
2950 start_offset);
2951 }
2952 }
2953 else if (is_array(type))
2954 {
2955 unsigned char tc = type->type;
2956 const char *array_type = "FixedArray";
2957
2958 /* We already have the size_is expression since it's at the
2959 top level, but do checks for multidimensional conformant
2960 arrays. When we handle them, we'll need to extend this
2961 function to return a list, and then we'll actually use
2962 the return value. */
2963 get_size_is_expr(type, var->name);
2964
2965 if (tc == RPC_FC_SMVARRAY || tc == RPC_FC_LGVARRAY)
2966 {
2967 array_type = "VaryingArray";
2968 }
2969 else if (tc == RPC_FC_CARRAY)
2970 {
2971 array_type = "ConformantArray";
2972 }
2973 else if (tc == RPC_FC_CVARRAY || tc == RPC_FC_BOGUS_ARRAY)
2974 {
2975 array_type = (tc == RPC_FC_BOGUS_ARRAY
2976 ? "ComplexArray"
2977 : "ConformantVaryingArray");
2978 }
2979
2980 if (pointer_type != RPC_FC_RP) array_type = "Pointer";
2981 print_phase_function(file, indent, array_type, phase, var, start_offset);
2982 if (phase == PHASE_FREE && pointer_type == RPC_FC_RP)
2983 {
2984 /* these are all unmarshalled by allocating memory */
2985 if (type->type == RPC_FC_BOGUS_ARRAY ||
2986 type->type == RPC_FC_CVARRAY ||
2987 ((type->type == RPC_FC_SMVARRAY || type->type == RPC_FC_LGVARRAY) && in_attr) ||
2988 (type->type == RPC_FC_CARRAY && !in_attr))
2989 {
2990 print_file(file, indent, "if (%s)\n", var->name);
2991 indent++;
2992 print_file(file, indent, "_StubMsg.pfnFree(%s);\n", var->name);
2993 }
2994 }
2995 }
2996 else if (!is_ptr(var->type) && is_base_type(rtype))
2997 {
2998 if (phase != PHASE_FREE)
2999 print_phase_basetype(file, indent, phase, pass, var, var->name);