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Sweden-Number/tools/widl/typegen.c

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/*
* Format String Generator for IDL Compiler
*
* Copyright 2005-2006 Eric Kohl
* Copyright 2005-2006 Robert Shearman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <signal.h>
#include <limits.h>
#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
#include "windef.h"
#include "wine/list.h"
#include "widl.h"
#include "typegen.h"
static const func_t *current_func;
static const type_t *current_structure;
/* name of the structure variable for structure callbacks */
#define STRUCT_EXPR_EVAL_VAR "pS"
static struct list expr_eval_routines = LIST_INIT(expr_eval_routines);
struct expr_eval_routine
{
struct list entry;
const type_t *structure;
size_t structure_size;
const expr_t *expr;
};
static size_t fields_memsize(const var_list_t *fields, unsigned int *align);
static size_t write_struct_tfs(FILE *file, type_t *type, const char *name, unsigned int *tfsoff);
static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
const char *name, int write_ptr, unsigned int *tfsoff);
const char *string_of_type(unsigned char type)
{
switch (type)
{
case RPC_FC_BYTE: return "FC_BYTE";
case RPC_FC_CHAR: return "FC_CHAR";
case RPC_FC_SMALL: return "FC_SMALL";
case RPC_FC_USMALL: return "FC_USMALL";
case RPC_FC_WCHAR: return "FC_WCHAR";
case RPC_FC_SHORT: return "FC_SHORT";
case RPC_FC_USHORT: return "FC_USHORT";
case RPC_FC_LONG: return "FC_LONG";
case RPC_FC_ULONG: return "FC_ULONG";
case RPC_FC_FLOAT: return "FC_FLOAT";
case RPC_FC_HYPER: return "FC_HYPER";
case RPC_FC_DOUBLE: return "FC_DOUBLE";
case RPC_FC_ENUM16: return "FC_ENUM16";
case RPC_FC_ENUM32: return "FC_ENUM32";
case RPC_FC_IGNORE: return "FC_IGNORE";
case RPC_FC_ERROR_STATUS_T: return "FC_ERROR_STATUS_T";
case RPC_FC_RP: return "FC_RP";
case RPC_FC_UP: return "FC_UP";
case RPC_FC_OP: return "FC_OP";
case RPC_FC_FP: return "FC_FP";
case RPC_FC_ENCAPSULATED_UNION: return "FC_ENCAPSULATED_UNION";
case RPC_FC_NON_ENCAPSULATED_UNION: return "FC_NON_ENCAPSULATED_UNION";
case RPC_FC_STRUCT: return "FC_STRUCT";
case RPC_FC_PSTRUCT: return "FC_PSTRUCT";
case RPC_FC_CSTRUCT: return "FC_CSTRUCT";
case RPC_FC_CPSTRUCT: return "FC_CPSTRUCT";
case RPC_FC_CVSTRUCT: return "FC_CVSTRUCT";
case RPC_FC_BOGUS_STRUCT: return "FC_BOGUS_STRUCT";
case RPC_FC_SMFARRAY: return "FC_SMFARRAY";
case RPC_FC_LGFARRAY: return "FC_LGFARRAY";
case RPC_FC_SMVARRAY: return "FC_SMVARRAY";
case RPC_FC_LGVARRAY: return "FC_LGVARRAY";
case RPC_FC_CARRAY: return "FC_CARRAY";
case RPC_FC_CVARRAY: return "FC_CVARRAY";
case RPC_FC_BOGUS_ARRAY: return "FC_BOGUS_ARRAY";
default:
error("string_of_type: unknown type 0x%02x\n", type);
return NULL;
}
}
int is_struct(unsigned char type)
{
switch (type)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_BOGUS_STRUCT:
return 1;
default:
return 0;
}
}
static int is_non_complex_struct(const type_t *type)
{
switch (type->type)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CVSTRUCT:
return 1;
default:
return 0;
}
}
int is_union(unsigned char type)
{
switch (type)
{
case RPC_FC_ENCAPSULATED_UNION:
case RPC_FC_NON_ENCAPSULATED_UNION:
return 1;
default:
return 0;
}
}
static unsigned short user_type_offset(const char *name)
{
user_type_t *ut;
unsigned short off = 0;
LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
{
if (strcmp(name, ut->name) == 0)
return off;
++off;
}
error("user_type_offset: couldn't find type (%s)\n", name);
return 0;
}
static void update_tfsoff(type_t *type, unsigned int offset, FILE *file)
{
type->typestring_offset = offset;
if (file) type->tfswrite = FALSE;
}
static void guard_rec(type_t *type)
{
/* types that contain references to themselves (like a linked list),
need to be shielded from infinite recursion when writing embedded
types */
if (type->typestring_offset)
type->tfswrite = FALSE;
else
type->typestring_offset = 1;
}
static type_t *get_user_type(const type_t *t, const char **pname)
{
for (;;)
{
type_t *ut = get_attrp(t->attrs, ATTR_WIREMARSHAL);
if (ut)
{
if (pname)
*pname = t->name;
return ut;
}
if (t->kind == TKIND_ALIAS)
t = t->orig;
else
return 0;
}
}
static int is_user_type(const type_t *t)
{
return get_user_type(t, NULL) != NULL;
}
static int is_embedded_complex(const type_t *type)
{
unsigned char tc = type->type;
return is_struct(tc) || is_union(tc) || is_array(type) || is_user_type(type)
|| (is_ptr(type) && type->ref->type == RPC_FC_IP);
}
static int compare_expr(const expr_t *a, const expr_t *b)
{
int ret;
if (a->type != b->type)
return a->type - b->type;
switch (a->type)
{
case EXPR_NUM:
case EXPR_HEXNUM:
case EXPR_TRUEFALSE:
return a->u.lval - b->u.lval;
case EXPR_IDENTIFIER:
return strcmp(a->u.sval, b->u.sval);
case EXPR_COND:
ret = compare_expr(a->ref, b->ref);
if (ret != 0)
return ret;
ret = compare_expr(a->u.ext, b->u.ext);
if (ret != 0)
return ret;
return compare_expr(a->ext2, b->ext2);
case EXPR_OR:
case EXPR_AND:
case EXPR_ADD:
case EXPR_SUB:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_SHL:
case EXPR_SHR:
ret = compare_expr(a->ref, b->ref);
if (ret != 0)
return ret;
return compare_expr(a->u.ext, b->u.ext);
case EXPR_NOT:
case EXPR_NEG:
case EXPR_PPTR:
case EXPR_CAST:
case EXPR_SIZEOF:
return compare_expr(a->ref, b->ref);
case EXPR_VOID:
return 0;
}
return -1;
}
#define WRITE_FCTYPE(file, fctype, typestring_offset) \
do { \
if (file) \
fprintf(file, "/* %2u */\n", typestring_offset); \
print_file((file), 2, "0x%02x, /* " #fctype " */\n", RPC_##fctype); \
} \
while (0)
static void print_file(FILE *file, int indent, const char *format, ...)
{
va_list va;
va_start(va, format);
print(file, indent, format, va);
va_end(va);
}
void print(FILE *file, int indent, const char *format, va_list va)
{
if (file)
{
if (format[0] != '\n')
while (0 < indent--)
fprintf(file, " ");
vfprintf(file, format, va);
}
}
void write_parameters_init(FILE *file, int indent, const func_t *func)
{
const var_t *var;
if (!func->args)
return;
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
const type_t *t = var->type;
const char *n = var->name;
if (decl_indirect(t))
print_file(file, indent, "MIDL_memset(&%s, 0, sizeof %s);\n", n, n);
else if (is_ptr(t) || is_array(t))
print_file(file, indent, "%s = 0;\n", n);
}
fprintf(file, "\n");
}
static void write_formatdesc(FILE *f, int indent, const char *str)
{
print_file(f, indent, "typedef struct _MIDL_%s_FORMAT_STRING\n", str);
print_file(f, indent, "{\n");
print_file(f, indent + 1, "short Pad;\n");
print_file(f, indent + 1, "unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
print_file(f, indent, "} MIDL_%s_FORMAT_STRING;\n", str);
print_file(f, indent, "\n");
}
void write_formatstringsdecl(FILE *f, int indent, ifref_list_t *ifaces, int for_objects)
{
print_file(f, indent, "#define TYPE_FORMAT_STRING_SIZE %d\n",
get_size_typeformatstring(ifaces, for_objects));
print_file(f, indent, "#define PROC_FORMAT_STRING_SIZE %d\n",
get_size_procformatstring(ifaces, for_objects));
fprintf(f, "\n");
write_formatdesc(f, indent, "TYPE");
write_formatdesc(f, indent, "PROC");
fprintf(f, "\n");
print_file(f, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
print_file(f, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
print_file(f, indent, "\n");
}
static inline int is_base_type(unsigned char type)
{
switch (type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_HYPER:
case RPC_FC_IGNORE:
case RPC_FC_FLOAT:
case RPC_FC_DOUBLE:
case RPC_FC_ENUM16:
case RPC_FC_ENUM32:
case RPC_FC_ERROR_STATUS_T:
case RPC_FC_BIND_PRIMITIVE:
return TRUE;
default:
return FALSE;
}
}
int decl_indirect(const type_t *t)
{
return is_user_type(t)
|| (!is_base_type(t->type)
&& !is_ptr(t)
&& !is_array(t));
}
static size_t write_procformatstring_var(FILE *file, int indent,
const var_t *var, int is_return)
{
size_t size;
const type_t *type = var->type;
int is_in = is_attr(var->attrs, ATTR_IN);
int is_out = is_attr(var->attrs, ATTR_OUT);
if (!is_in && !is_out) is_in = TRUE;
if (!type->declarray && is_base_type(type->type))
{
if (is_return)
print_file(file, indent, "0x53, /* FC_RETURN_PARAM_BASETYPE */\n");
else
print_file(file, indent, "0x4e, /* FC_IN_PARAM_BASETYPE */\n");
if (type->type == RPC_FC_BIND_PRIMITIVE)
{
print_file(file, indent, "0x%02x, /* FC_IGNORE */\n", RPC_FC_IGNORE);
size = 2; /* includes param type prefix */
}
else if (is_base_type(type->type))
{
print_file(file, indent, "0x%02x, /* %s */\n", type->type, string_of_type(type->type));
size = 2; /* includes param type prefix */
}
else
{
error("Unknown/unsupported type: %s (0x%02x)\n", var->name, type->type);
size = 0;
}
}
else
{
if (is_return)
print_file(file, indent, "0x52, /* FC_RETURN_PARAM */\n");
else if (is_in && is_out)
print_file(file, indent, "0x50, /* FC_IN_OUT_PARAM */\n");
else if (is_out)
print_file(file, indent, "0x51, /* FC_OUT_PARAM */\n");
else
print_file(file, indent, "0x4d, /* FC_IN_PARAM */\n");
print_file(file, indent, "0x01,\n");
print_file(file, indent, "NdrFcShort(0x%x),\n", type->typestring_offset);
size = 4; /* includes param type prefix */
}
return size;
}
void write_procformatstring(FILE *file, const ifref_list_t *ifaces, int for_objects)
{
const ifref_t *iface;
int indent = 0;
const var_t *var;
print_file(file, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString =\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "0,\n");
print_file(file, indent, "{\n");
indent++;
if (ifaces) LIST_FOR_EACH_ENTRY( iface, ifaces, const ifref_t, entry )
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
const func_t *func;
LIST_FOR_EACH_ENTRY( func, iface->iface->funcs, const func_t, entry )
{
if (is_local(func->def->attrs)) continue;
/* emit argument data */
if (func->args)
{
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
write_procformatstring_var(file, indent, var, FALSE);
}
/* emit return value data */
var = func->def;
if (is_void(var->type))
{
print_file(file, indent, "0x5b, /* FC_END */\n");
print_file(file, indent, "0x5c, /* FC_PAD */\n");
}
else
write_procformatstring_var(file, indent, var, TRUE);
}
}
}
print_file(file, indent, "0x0\n");
indent--;
print_file(file, indent, "}\n");
indent--;
print_file(file, indent, "};\n");
print_file(file, indent, "\n");
}
static int write_base_type(FILE *file, const type_t *type, unsigned int *typestring_offset)
{
if (is_base_type(type->type))
{
print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
*typestring_offset += 1;
return 1;
}
return 0;
}
/* write conformance / variance descriptor */
static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const type_t *structure,
unsigned int baseoff, const expr_t *expr)
{
unsigned char operator_type = 0;
const char *operator_string = "no operators";
const expr_t *subexpr;
unsigned char correlation_type;
if (!file) return 4; /* optimisation for sizing pass */
if (expr->is_const)
{
if (expr->cval > UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX)
error("write_conf_or_var_desc: constant value %ld is greater than "
"the maximum constant size of %d\n", expr->cval,
UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX);
print_file(file, 2, "0x%x, /* Corr desc: constant, val = %ld */\n",
RPC_FC_CONSTANT_CONFORMANCE, expr->cval);
print_file(file, 2, "0x%x,\n", expr->cval & ~USHRT_MAX);
print_file(file, 2, "NdrFcShort(0x%x),\n", expr->cval & USHRT_MAX);
return 4;
}
subexpr = expr;
switch (subexpr->type)
{
case EXPR_PPTR:
subexpr = subexpr->ref;
operator_type = RPC_FC_DEREFERENCE;
operator_string = "FC_DEREFERENCE";
break;
case EXPR_DIV:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_DIV_2;
operator_string = "FC_DIV_2";
}
break;
case EXPR_MUL:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_MULT_2;
operator_string = "FC_MULT_2";
}
break;
case EXPR_SUB:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_SUB_1;
operator_string = "FC_SUB_1";
}
break;
case EXPR_ADD:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_ADD_1;
operator_string = "FC_ADD_1";
}
break;
default:
break;
}
if (subexpr->type == EXPR_IDENTIFIER)
{
const type_t *correlation_variable = NULL;
unsigned char correlation_variable_type;
unsigned char param_type = 0;
const char *param_type_string = NULL;
size_t offset;
if (structure)
{
const var_t *var;
offset = 0;
if (structure->fields) LIST_FOR_EACH_ENTRY( var, structure->fields, const var_t, entry )
{
unsigned int align = 0;
/* FIXME: take alignment into account */
if (var->name && !strcmp(var->name, subexpr->u.sval))
{
correlation_variable = var->type;
break;
}
offset += type_memsize(var->type, &align);
}
if (!correlation_variable)
error("write_conf_or_var_desc: couldn't find variable %s in structure\n",
subexpr->u.sval);
offset -= baseoff;
correlation_type = RPC_FC_NORMAL_CONFORMANCE;
}
else
{
const var_t *var;
offset = sizeof(void *);
if (func->args) LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
if (!strcmp(var->name, subexpr->u.sval))
{
correlation_variable = var->type;
break;
}
/* FIXME: not all stack variables are sizeof(void *) */
offset += sizeof(void *);
}
if (!correlation_variable)
error("write_conf_or_var_desc: couldn't find variable %s in function\n",
subexpr->u.sval);
correlation_type = RPC_FC_TOP_LEVEL_CONFORMANCE;
}
correlation_variable_type = correlation_variable->type;
switch (correlation_variable_type)
{
case RPC_FC_CHAR:
case RPC_FC_SMALL:
param_type = RPC_FC_SMALL;
param_type_string = "FC_SMALL";
break;
case RPC_FC_BYTE:
case RPC_FC_USMALL:
param_type = RPC_FC_USMALL;
param_type_string = "FC_USMALL";
break;
case RPC_FC_WCHAR:
case RPC_FC_SHORT:
case RPC_FC_ENUM16:
param_type = RPC_FC_SHORT;
param_type_string = "FC_SHORT";
break;
case RPC_FC_USHORT:
param_type = RPC_FC_USHORT;
param_type_string = "FC_USHORT";
break;
case RPC_FC_LONG:
case RPC_FC_ENUM32:
param_type = RPC_FC_LONG;
param_type_string = "FC_LONG";
break;
case RPC_FC_ULONG:
param_type = RPC_FC_ULONG;
param_type_string = "FC_ULONG";
break;
case RPC_FC_RP:
case RPC_FC_UP:
case RPC_FC_OP:
case RPC_FC_FP:
if (sizeof(void *) == 4) /* FIXME */
{
param_type = RPC_FC_LONG;
param_type_string = "FC_LONG";
}
else
{
param_type = RPC_FC_HYPER;
param_type_string = "FC_HYPER";
}
break;
default:
error("write_conf_or_var_desc: conformance variable type not supported 0x%x\n",
correlation_variable_type);
}
print_file(file, 2, "0x%x, /* Corr desc: %s%s */\n",
correlation_type | param_type,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "parameter, " : "",
param_type_string);
print_file(file, 2, "0x%x, /* %s */\n", operator_type, operator_string);
print_file(file, 2, "NdrFcShort(0x%x), /* %soffset = %d */\n",
offset,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "x86 stack size / " : "",
offset);
}
else
{
unsigned int callback_offset = 0;
if (structure)
{
struct expr_eval_routine *eval;
int found = 0;
LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
{
if (!strcmp(eval->structure->name, structure->name) &&
!compare_expr(eval->expr, expr))
{
found = 1;
break;
}
callback_offset++;
}
if (!found)
{
unsigned int align = 0;
eval = xmalloc(sizeof(*eval));
eval->structure = structure;
eval->structure_size = fields_memsize(structure->fields, &align);
eval->expr = expr;
list_add_tail(&expr_eval_routines, &eval->entry);
}
correlation_type = RPC_FC_NORMAL_CONFORMANCE;
}
else
{
error("write_conf_or_var_desc: top-level callback conformance unimplemented\n");
correlation_type = RPC_FC_TOP_LEVEL_CONFORMANCE;
}
if (callback_offset > USHRT_MAX)
error("Maximum number of callback routines reached\n");
print_file(file, 2, "0x%x, /* Corr desc: %s */\n",
correlation_type,
correlation_type == RPC_FC_TOP_LEVEL_CONFORMANCE ? "parameter" : "");
print_file(file, 2, "0x%x, /* %s */\n", RPC_FC_CALLBACK, "FC_CALLBACK");
print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", callback_offset, callback_offset);
}
return 4;
}
static size_t fields_memsize(const var_list_t *fields, unsigned int *align)
{
size_t size = 0;
const var_t *v;
if (!fields) return 0;
LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
size += type_memsize(v->type, align);
return size;
}
static size_t union_memsize(const var_list_t *fields, unsigned int *pmaxa)
{
size_t size, maxs = 0;
unsigned int align = *pmaxa;
const var_t *v;
if (fields) LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
{
/* we could have an empty default field with NULL type */
if (v->type)
{
size = type_memsize(v->type, &align);
if (maxs < size) maxs = size;
if (*pmaxa < align) *pmaxa = align;
}
}
return maxs;
}
size_t type_memsize(const type_t *t, unsigned int *align)
{
size_t size = 0;
if (t->declarray && is_conformant_array(t))
{
type_memsize(t->ref, align);
size = 0;
}
else if (is_ptr(t) || is_conformant_array(t))
{
size = sizeof(void *);
if (size > *align) *align = size;
}
else switch (t->type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
size = 1;
if (size > *align) *align = size;
break;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ENUM16:
size = 2;
if (size > *align) *align = size;
break;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_ERROR_STATUS_T:
case RPC_FC_ENUM32:
case RPC_FC_FLOAT:
size = 4;
if (size > *align) *align = size;
break;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
size = 8;
if (size > *align) *align = size;
break;
case RPC_FC_STRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_BOGUS_STRUCT:
size = fields_memsize(t->fields, align);
break;
case RPC_FC_ENCAPSULATED_UNION:
case RPC_FC_NON_ENCAPSULATED_UNION:
size = union_memsize(t->fields, align);
break;
case RPC_FC_SMFARRAY:
case RPC_FC_LGFARRAY:
case RPC_FC_SMVARRAY:
case RPC_FC_LGVARRAY:
case RPC_FC_BOGUS_ARRAY:
size = t->dim * type_memsize(t->ref, align);
break;
default:
error("type_memsize: Unknown type %d\n", t->type);
size = 0;
}
return size;
}
static unsigned int write_nonsimple_pointer(FILE *file, const type_t *type, size_t offset)
{
short absoff = type->ref->typestring_offset;
short reloff = absoff - (offset + 2);
int ptr_attr = is_ptr(type->ref) ? 0x10 : 0x0;
print_file(file, 2, "0x%02x, 0x%x,\t/* %s */\n",
type->type, ptr_attr, string_of_type(type->type));
print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%hd) */\n",
reloff, reloff, absoff);
return 4;
}
static unsigned int write_simple_pointer(FILE *file, const type_t *type)
{
print_file(file, 2, "0x%02x, 0x8,\t/* %s [simple_pointer] */\n",
type->type, string_of_type(type->type));
print_file(file, 2, "0x%02x,\t/* %s */\n", type->ref->type,
string_of_type(type->ref->type));
print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
return 4;
}
static size_t write_pointer_tfs(FILE *file, type_t *type, unsigned int *typestring_offset)
{
unsigned int offset = *typestring_offset;
print_file(file, 0, "/* %d */\n", offset);
update_tfsoff(type, offset, file);
if (type->ref->typestring_offset)
*typestring_offset += write_nonsimple_pointer(file, type, offset);
else if (is_base_type(type->ref->type))
*typestring_offset += write_simple_pointer(file, type);
return offset;
}
static int processed(const type_t *type)
{
return type->typestring_offset && !type->tfswrite;
}
static void write_user_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
{
unsigned int start, absoff, flags;
unsigned int align = 0, ualign = 0;
const char *name;
type_t *utype = get_user_type(type, &name);
size_t usize = type_memsize(utype, &ualign);
size_t size = type_memsize(type, &align);
unsigned short funoff = user_type_offset(name);
short reloff;
guard_rec(type);
if (is_base_type(utype->type))
{
absoff = *tfsoff;
print_file(file, 0, "/* %d */\n", absoff);
print_file(file, 2, "0x%x,\t/* %s */\n", utype->type, string_of_type(utype->type));
print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
*tfsoff += 2;
}
else
{
if (!processed(utype))
write_embedded_types(file, NULL, utype, utype->name, TRUE, tfsoff);
absoff = utype->typestring_offset;
}
if (utype->type == RPC_FC_RP)
flags = 0x40;
else if (utype->type == RPC_FC_UP)
flags = 0x80;
else
flags = 0;
start = *tfsoff;
update_tfsoff(type, start, file);
print_file(file, 0, "/* %d */\n", start);
print_file(file, 2, "0x%x,\t/* FC_USER_MARSHAL */\n", RPC_FC_USER_MARSHAL);
print_file(file, 2, "0x%x,\t/* Alignment= %d, Flags= %02x */\n",
flags | (align - 1), align - 1, flags);
print_file(file, 2, "NdrFcShort(0x%hx),\t/* Function offset= %hu */\n", funoff, funoff);
print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", usize, usize);
print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", size, size);
*tfsoff += 8;
reloff = absoff - *tfsoff;
print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n", reloff, reloff, absoff);
*tfsoff += 2;
}
static void write_member_type(FILE *file, type_t *type, const var_t *field,
unsigned int *corroff, unsigned int *tfsoff)
{
if (is_embedded_complex(type))
{
size_t absoff;
short reloff;
if (is_union(type->type) && is_attr(field->attrs, ATTR_SWITCHIS))
{
absoff = *corroff;
*corroff += 8;
}
else
{
absoff = type->typestring_offset;
}
reloff = absoff - (*tfsoff + 2);
print_file(file, 2, "0x4c,\t/* FC_EMBEDDED_COMPLEX */\n");
/* FIXME: actually compute necessary padding */
print_file(file, 2, "0x0,\t/* FIXME: padding */\n");
print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
reloff, reloff, absoff);
*tfsoff += 4;
}
else if (is_ptr(type))
{
print_file(file, 2, "0x8,\t/* FC_LONG */\n");
*tfsoff += 1;
}
else if (!write_base_type(file, type, tfsoff))
error("Unsupported member type 0x%x\n", type->type);
}
static void write_end(FILE *file, unsigned int *tfsoff)
{
if (*tfsoff % 2 == 0)
{
print_file(file, 2, "0x%x,\t\t/* FC_PAD */\n", RPC_FC_PAD);
*tfsoff += 1;
}
print_file(file, 2, "0x%x,\t\t/* FC_END */\n", RPC_FC_END);
*tfsoff += 1;
}
static void write_descriptors(FILE *file, type_t *type, unsigned int *tfsoff)
{
unsigned int offset = 0;
var_list_t *fs = type->fields;
var_t *f;
if (fs) LIST_FOR_EACH_ENTRY(f, fs, var_t, entry)
{
unsigned int align = 0;
type_t *ft = f->type;
if (is_union(ft->type) && is_attr(f->attrs, ATTR_SWITCHIS))
{
unsigned int absoff = ft->typestring_offset;
short reloff = absoff - (*tfsoff + 6);
print_file(file, 0, "/* %d */\n", *tfsoff);
print_file(file, 2, "0x%x,\t/* %s */\n", ft->type, string_of_type(ft->type));
print_file(file, 2, "0x%x,\t/* FIXME: always FC_LONG */\n", RPC_FC_LONG);
write_conf_or_var_desc(file, current_func, current_structure, offset,
get_attrp(f->attrs, ATTR_SWITCHIS));
print_file(file, 2, "NdrFcShort(%hd),\t/* Offset= %hd (%u) */\n",
reloff, reloff, absoff);
*tfsoff += 8;
}
/* FIXME: take alignment into account */
offset += type_memsize(ft, &align);
}
}
static int write_no_repeat_pointer_descriptions(
FILE *file, type_t *type,
size_t *offset_in_memory, size_t *offset_in_buffer,
unsigned int *typestring_offset)
{
int written = 0;
unsigned int align;
if (is_ptr(type))
{
print_file(file, 2, "0x%02x, /* FC_NO_REPEAT */\n", RPC_FC_NO_REPEAT);
print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);
/* pointer instance */
print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);
*typestring_offset += 6;
if (processed(type->ref) || is_base_type(type->ref->type))
write_pointer_tfs(file, type, typestring_offset);
else
error("write_pointer_description: type format string unknown\n");
align = 0;
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
*offset_in_buffer += type_memsize(type, &align);
return 1;
}
if (is_non_complex_struct(type))
{
const var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, const var_t, entry )
written += write_no_repeat_pointer_descriptions(
file, v->type,
offset_in_memory, offset_in_buffer, typestring_offset);
}
else
{
align = 0;
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
*offset_in_buffer += type_memsize(type, &align);
}
return written;
}
static int write_pointer_description_offsets(
FILE *file, const attr_list_t *attrs, type_t *type,
size_t *offset_in_memory, size_t *offset_in_buffer,
unsigned int *typestring_offset)
{
int written = 0;
unsigned int align;
if (is_ptr(type) && type->ref->type != RPC_FC_IP)
{
if (offset_in_memory && offset_in_buffer)
{
/* pointer instance */
/* FIXME: sometimes from end of structure, sometimes from beginning */
print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);
align = 0;
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
*offset_in_buffer += type_memsize(type, &align);
}
*typestring_offset += 4;
if (processed(type->ref) || is_base_type(type->ref->type))
write_pointer_tfs(file, type, typestring_offset);
else
error("write_pointer_description_offsets: type format string unknown\n");
return 1;
}
if (is_array(type))
{
return write_pointer_description_offsets(
file, attrs, type->ref, offset_in_memory, offset_in_buffer,
typestring_offset);
}
else if (is_non_complex_struct(type))
{
/* otherwise search for interesting fields to parse */
const var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, const var_t, entry )
{
written += write_pointer_description_offsets(
file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
typestring_offset);
}
}
else
{
align = 0;
if (offset_in_memory)
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
if (offset_in_buffer)
*offset_in_buffer += type_memsize(type, &align);
}
return written;
}
/* Note: if file is NULL return value is number of pointers to write, else
* it is the number of type format characters written */
static int write_fixed_array_pointer_descriptions(
FILE *file, const attr_list_t *attrs, type_t *type,
size_t *offset_in_memory, size_t *offset_in_buffer,
unsigned int *typestring_offset)
{
unsigned int align;
int pointer_count = 0;
if (type->type == RPC_FC_SMFARRAY || type->type == RPC_FC_LGFARRAY)
{
unsigned int temp = 0;
/* unfortunately, this needs to be done in two passes to avoid
* writing out redundant FC_FIXED_REPEAT descriptions */
pointer_count = write_pointer_description_offsets(
NULL, attrs, type->ref, NULL, NULL, &temp);
if (pointer_count > 0)
{
unsigned int increment_size;
size_t offset_of_array_pointer_mem = 0;
size_t offset_of_array_pointer_buf = 0;
align = 0;
increment_size = type_memsize(type->ref, &align);
print_file(file, 2, "0x%02x, /* FC_FIXED_REPEAT */\n", RPC_FC_FIXED_REPEAT);
print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);
print_file(file, 2, "NdrFcShort(0x%x), /* Iterations = %d */\n", type->dim, type->dim);
print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
*typestring_offset += 10;
pointer_count = write_pointer_description_offsets(
file, attrs, type, &offset_of_array_pointer_mem,
&offset_of_array_pointer_buf, typestring_offset);
}
}
else if (is_struct(type->type))
{
const var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, const var_t, entry )
{
pointer_count += write_fixed_array_pointer_descriptions(
file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
typestring_offset);
}
}
else
{
align = 0;
if (offset_in_memory)
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
if (offset_in_buffer)
*offset_in_buffer += type_memsize(type, &align);
}
return pointer_count;
}
/* Note: if file is NULL return value is number of pointers to write, else
* it is the number of type format characters written */
static int write_conformant_array_pointer_descriptions(
FILE *file, const attr_list_t *attrs, type_t *type,
size_t *offset_in_memory, size_t *offset_in_buffer,
unsigned int *typestring_offset)
{
unsigned int align;
int pointer_count = 0;
if (is_conformant_array(type) && !type->length_is)
{
unsigned int temp = 0;
/* unfortunately, this needs to be done in two passes to avoid
* writing out redundant FC_VARIABLE_REPEAT descriptions */
pointer_count = write_pointer_description_offsets(
NULL, attrs, type->ref, NULL, NULL, &temp);
if (pointer_count > 0)
{
unsigned int increment_size;
size_t offset_of_array_pointer_mem = 0;
size_t offset_of_array_pointer_buf = 0;
align = 0;
increment_size = type_memsize(type->ref, &align);
if (increment_size > USHRT_MAX)
error("array size of %u bytes is too large\n", increment_size);
print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
print_file(file, 2, "0x%02x, /* FC_FIXED_OFFSET */\n", RPC_FC_FIXED_OFFSET);
print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
*typestring_offset += 8;
pointer_count = write_pointer_description_offsets(
file, attrs, type->ref, &offset_of_array_pointer_mem,
&offset_of_array_pointer_buf, typestring_offset);
}
}
else if (is_struct(type->type))
{
const var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, const var_t, entry )
{
pointer_count += write_conformant_array_pointer_descriptions(
file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
typestring_offset);
}
}
else
{
align = 0;
if (offset_in_memory)
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
if (offset_in_buffer)
*offset_in_buffer += type_memsize(type, &align);
}
return pointer_count;
}
/* Note: if file is NULL return value is number of pointers to write, else
* it is the number of type format characters written */
static int write_varying_array_pointer_descriptions(
FILE *file, const attr_list_t *attrs, type_t *type,
size_t *offset_in_memory, size_t *offset_in_buffer,
unsigned int *typestring_offset)
{
unsigned int align;
int pointer_count = 0;
/* FIXME: do varying array searching here, but pointer searching in write_pointer_description_offsets */
if (is_array(type) && type->length_is)
{
unsigned int temp = 0;
/* unfortunately, this needs to be done in two passes to avoid
* writing out redundant FC_VARIABLE_REPEAT descriptions */
pointer_count = write_pointer_description_offsets(
NULL, attrs, type->ref, NULL, NULL, &temp);
if (pointer_count > 0)
{
unsigned int increment_size;
size_t offset_of_array_pointer_mem = 0;
size_t offset_of_array_pointer_buf = 0;
align = 0;
increment_size = type_memsize(type->ref, &align);
if (increment_size > USHRT_MAX)
error("array size of %u bytes is too large\n", increment_size);
print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
print_file(file, 2, "0x%02x, /* FC_VARIABLE_OFFSET */\n", RPC_FC_VARIABLE_OFFSET);
print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
*typestring_offset += 8;
pointer_count = write_pointer_description_offsets(
file, attrs, type, &offset_of_array_pointer_mem,
&offset_of_array_pointer_buf, typestring_offset);
}
}
else if (is_struct(type->type))
{
const var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, const var_t, entry )
{
pointer_count += write_varying_array_pointer_descriptions(
file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
typestring_offset);
}
}
else
{
align = 0;
if (offset_in_memory)
*offset_in_memory += type_memsize(type, &align);
/* FIXME: is there a case where these two are different? */
align = 0;
if (offset_in_buffer)
*offset_in_buffer += type_memsize(type, &align);
}
return pointer_count;
}
static void write_pointer_description(FILE *file, type_t *type,
unsigned int *typestring_offset)
{
size_t offset_in_buffer;
size_t offset_in_memory;
/* pass 1: search for single instance of a pointer (i.e. don't descend
* into arrays) */
offset_in_memory = 0;
offset_in_buffer = 0;
write_no_repeat_pointer_descriptions(
file, type,
&offset_in_memory, &offset_in_buffer, typestring_offset);
/* pass 2: search for pointers in fixed arrays */
offset_in_memory = 0;
offset_in_buffer = 0;
write_fixed_array_pointer_descriptions(
file, NULL, type,
&offset_in_memory, &offset_in_buffer, typestring_offset);
/* pass 3: search for pointers in conformant only arrays (but don't descend
* into conformant varying or varying arrays) */
offset_in_memory = 0;
offset_in_buffer = 0;
write_conformant_array_pointer_descriptions(
file, NULL, type,
&offset_in_memory, &offset_in_buffer, typestring_offset);
/* pass 4: search for pointers in varying arrays */
offset_in_memory = 0;
offset_in_buffer = 0;
write_varying_array_pointer_descriptions(
file, NULL, type,
&offset_in_memory, &offset_in_buffer, typestring_offset);
}
static size_t write_string_tfs(FILE *file, const attr_list_t *attrs,
const type_t *type,
const char *name, unsigned int *typestring_offset)
{
size_t start_offset = *typestring_offset;
unsigned char flags = 0;
int pointer_type;
unsigned char rtype;
if (is_ptr(type))
{
pointer_type = type->type;
type = type->ref;
}
else
pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
if (!get_attrp(attrs, ATTR_SIZEIS))
flags |= RPC_FC_P_SIMPLEPOINTER;
rtype = type->type;
if ((rtype != RPC_FC_BYTE) && (rtype != RPC_FC_CHAR) && (rtype != RPC_FC_WCHAR))
{
error("write_string_tfs: Unimplemented for type 0x%x of name: %s\n", rtype, name);
return start_offset;
}
print_file(file, 2,"0x%x, 0x%x, /* %s%s */\n",
pointer_type, flags,
pointer_type == RPC_FC_FP ? "FC_FP" : (pointer_type == RPC_FC_UP ? "FC_UP" : "FC_RP"),
(flags & RPC_FC_P_SIMPLEPOINTER) ? " [simple_pointer]" : "");
*typestring_offset += 2;
if (!(flags & RPC_FC_P_SIMPLEPOINTER))
{
print_file(file, 2, "NdrFcShort(0x2),\n");
*typestring_offset += 2;
}
if (type->declarray && !is_conformant_array(type))
{
/* FIXME: multi-dimensional array */
if (0xffffuL < type->dim)
error("array size for parameter %s exceeds %u bytes by %lu bytes\n",
name, 0xffffu, type->dim - 0xffffu);
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", type->dim, type->dim);
*typestring_offset += 2;
return start_offset;
}
else if (type->size_is)
{
unsigned int align = 0;
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_STRING_SIZED */\n", RPC_FC_STRING_SIZED);
*typestring_offset += 2;
*typestring_offset += write_conf_or_var_desc(
file, current_func, current_structure,
(type->declarray && current_structure
? type_memsize(current_structure, &align)
: 0),
type->size_is);
return start_offset;
}
else
{
if (rtype == RPC_FC_CHAR)
WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
else
WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
return start_offset;
}
}
static size_t write_array_tfs(FILE *file, const attr_list_t *attrs, type_t *type,
const char *name, unsigned int *typestring_offset)
{
const expr_t *length_is = type->length_is;
const expr_t *size_is = type->size_is;
unsigned int align = 0;
size_t size;
size_t start_offset;
int has_pointer;
int pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
has_pointer = FALSE;
if (write_embedded_types(file, attrs, type->ref, name, FALSE, typestring_offset))
has_pointer = TRUE;
size = type_memsize(type, &align);
if (size == 0) /* conformant array */
size = type_memsize(type->ref, &align);
start_offset = *typestring_offset;
update_tfsoff(type, start_offset, file);
print_file(file, 0, "/* %lu */\n", start_offset);
print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
*typestring_offset += 2;
align = 0;
if (type->type != RPC_FC_BOGUS_ARRAY)
{
unsigned char tc = type->type;
unsigned int baseoff
= type->declarray && current_structure
? type_memsize(current_structure, &align)
: 0;
if (tc == RPC_FC_LGFARRAY || tc == RPC_FC_LGVARRAY)
{
print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", size, size);
*typestring_offset += 4;
}
else
{
print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", size, size);
*typestring_offset += 2;
}
if (is_conformant_array(type))
*typestring_offset
+= write_conf_or_var_desc(file, current_func, current_structure,
baseoff, size_is);
if (type->type == RPC_FC_SMVARRAY || type->type == RPC_FC_LGVARRAY)
{
unsigned int elalign = 0;
size_t elsize = type_memsize(type->ref, &elalign);
if (type->type == RPC_FC_LGVARRAY)
{
print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", type->dim, type->dim);
*typestring_offset += 4;
}
else
{
print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", type->dim, type->dim);
*typestring_offset += 2;
}
print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", elsize, elsize);
*typestring_offset += 2;
}
if (length_is)
*typestring_offset
+= write_conf_or_var_desc(file, current_func, current_structure,
baseoff, length_is);
if (has_pointer)
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*typestring_offset += 2;
write_pointer_description(file, type, typestring_offset);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*typestring_offset += 1;
}
write_member_type(file, type->ref, NULL, NULL, typestring_offset);
write_end(file, typestring_offset);
}
else
error("%s: complex arrays unimplemented\n", name);
return start_offset;
}
static const var_t *find_array_or_string_in_struct(const type_t *type)
{
const var_t *last_field = LIST_ENTRY( list_tail(type->fields), const var_t, entry );
const type_t *ft = last_field->type;
if (ft->declarray && is_conformant_array(ft))
return last_field;
if (ft->type == RPC_FC_CSTRUCT || ft->type == RPC_FC_CPSTRUCT || ft->type == RPC_FC_CVSTRUCT)
return find_array_or_string_in_struct(last_field->type);
else
return NULL;
}
static void write_struct_members(FILE *file, const type_t *type,
unsigned int *corroff, unsigned int *typestring_offset)
{
const var_t *field;
if (type->fields) LIST_FOR_EACH_ENTRY( field, type->fields, const var_t, entry )
{
type_t *ft = field->type;
if (!ft->declarray || !is_conformant_array(ft))
write_member_type(file, ft, field, corroff, typestring_offset);
}
write_end(file, typestring_offset);
}
static size_t write_struct_tfs(FILE *file, type_t *type,
const char *name, unsigned int *tfsoff)
{
const type_t *save_current_structure = current_structure;
unsigned int total_size;
const var_t *array;
size_t start_offset;
size_t array_offset;
int has_pointers = 0;
unsigned int align = 0;
unsigned int corroff;
var_t *f;
guard_rec(type);
current_structure = type;
total_size = type_memsize(type, &align);
if (total_size > USHRT_MAX)
error("structure size for %s exceeds %d bytes by %d bytes\n",
name, USHRT_MAX, total_size - USHRT_MAX);
if (type->fields) LIST_FOR_EACH_ENTRY(f, type->fields, var_t, entry)
has_pointers |= write_embedded_types(file, f->attrs, f->type, f->name,
FALSE, tfsoff);
array = find_array_or_string_in_struct(type);
if (array && !processed(array->type))
array_offset
= is_attr(array->attrs, ATTR_STRING)
? write_string_tfs(file, array->attrs, array->type, array->name, tfsoff)
: write_array_tfs(file, array->attrs, array->type, array->name, tfsoff);
corroff = *tfsoff;
write_descriptors(file, type, tfsoff);
start_offset = *tfsoff;
update_tfsoff(type, start_offset, file);
print_file(file, 0, "/* %d */\n", start_offset);
print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", total_size, total_size);
*tfsoff += 4;
if (array)
{
unsigned int absoff = array->type->typestring_offset;
short reloff = absoff - *tfsoff;
print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
reloff, reloff, absoff);
*tfsoff += 2;
}
else if (type->type == RPC_FC_BOGUS_STRUCT)
{
print_file(file, 2, "NdrFcShort(0x0),\n");
*tfsoff += 2;
}
if (type->type == RPC_FC_BOGUS_STRUCT)
{
print_file(file, 2, "NdrFcShort(0x0),\t/* FIXME: pointer stuff */\n");
*tfsoff += 2;
}
else if ((type->type == RPC_FC_PSTRUCT) ||
(type->type == RPC_FC_CPSTRUCT) ||
(type->type == RPC_FC_CVSTRUCT && has_pointers))
{
print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
*tfsoff += 2;
write_pointer_description(file, type, tfsoff);
print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
*tfsoff += 1;
}
write_struct_members(file, type, &corroff, tfsoff);
current_structure = save_current_structure;
return start_offset;
}
static size_t write_pointer_only_tfs(FILE *file, const attr_list_t *attrs, int pointer_type,
unsigned char flags, size_t offset,
unsigned int *typeformat_offset)
{
size_t start_offset = *typeformat_offset;
short reloff = offset - (*typeformat_offset + 2);
int in_attr, out_attr;
in_attr = is_attr(attrs, ATTR_IN);
out_attr = is_attr(attrs, ATTR_OUT);
if (!in_attr && !out_attr) in_attr = 1;
if (out_attr && !in_attr && pointer_type == RPC_FC_RP)
flags |= 0x04;
print_file(file, 2, "0x%x, 0x%x,\t\t/* %s",
pointer_type,
flags,
string_of_type(pointer_type));
if (file)
{
if (flags & 0x04)
fprintf(file, " [allocated_on_stack]");
if (flags & 0x10)
fprintf(file, " [pointer_deref]");
fprintf(file, " */\n");
}
print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", reloff, offset);
*typeformat_offset += 4;
return start_offset;
}
static void write_branch_type(FILE *file, const type_t *t, unsigned int *tfsoff)
{
if (t == NULL)
{
print_file(file, 2, "NdrFcShort(0x0),\t/* No type */\n");
}
else if (is_base_type(t->type))
{
print_file(file, 2, "NdrFcShort(0x80%02x),\t/* Simple arm type: %s */\n",
t->type, string_of_type(t->type));
}
else if (t->typestring_offset)
{
short reloff = t->typestring_offset - *tfsoff;
print_file(file, 2, "NdrFcShort(0x%x),\t/* Offset= %d (%d) */\n",
reloff, reloff, t->typestring_offset);
}
else
error("write_branch_type: type unimplemented (0x%x)\n", t->type);
*tfsoff += 2;
}
static size_t write_union_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
{
unsigned int align = 0;
unsigned int start_offset;
size_t size = type_memsize(type, &align);
var_list_t *fields;
size_t nbranch = 0;
type_t *deftype = NULL;
short nodeftype = 0xffff;
var_t *f;
guard_rec(type);
if (type->type == RPC_FC_ENCAPSULATED_UNION)
{
const var_t *uv = LIST_ENTRY(list_tail(type->fields), const var_t, entry);
fields = uv->type->fields;
}
else
fields = type->fields;
if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
{
expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
if (cases)
nbranch += list_count(cases);
if (f->type)
write_embedded_types(file, f->attrs, f->type, f->name, TRUE, tfsoff);
}
start_offset = *tfsoff;
update_tfsoff(type, start_offset, file);
print_file(file, 0, "/* %d */\n", start_offset);
if (type->type == RPC_FC_ENCAPSULATED_UNION)
{
const var_t *sv = LIST_ENTRY(list_head(type->fields), const var_t, entry);
const type_t *st = sv->type;
switch (st->type)
{
case RPC_FC_CHAR:
case RPC_FC_SMALL:
case RPC_FC_USMALL:
case RPC_FC_SHORT:
case RPC_FC_USHORT:
case RPC_FC_LONG:
case RPC_FC_ULONG:
case RPC_FC_ENUM16:
case RPC_FC_ENUM32:
print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
print_file(file, 2, "0x%x,\t/* Switch type= %s */\n",
0x40 | st->type, string_of_type(st->type));
*tfsoff += 2;
break;
default:
error("union switch type must be an integer, char, or enum\n");
}
}
print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", size, size);
print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", nbranch, nbranch);
*tfsoff += 4;
if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
{
type_t *ft = f->type;
expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
int deflt = is_attr(f->attrs, ATTR_DEFAULT);
expr_t *c;
if (cases == NULL && !deflt)
error("union field %s with neither case nor default attribute\n", f->name);
if (cases) LIST_FOR_EACH_ENTRY(c, cases, expr_t, entry)
{
/* MIDL doesn't check for duplicate cases, even though that seems
like a reasonable thing to do, it just dumps them to the TFS
like we're going to do here. */
print_file(file, 2, "NdrFcLong(0x%x),\t/* %d */\n", c->cval, c->cval);
*tfsoff += 4;
write_branch_type(file, ft, tfsoff);
}
/* MIDL allows multiple default branches, even though that seems
illogical, it just chooses the last one, which is what we will
do. */
if (deflt)
{
deftype = ft;
nodeftype = 0;
}
}
if (deftype)
{
write_branch_type(file, deftype, tfsoff);
}
else
{
print_file(file, 2, "NdrFcShort(0x%x),\n", nodeftype);
*tfsoff += 2;
}
return start_offset;
}
static size_t write_ip_tfs(FILE *file, const func_t *func, const attr_list_t *attrs,
type_t *type, unsigned int *typeformat_offset)
{
size_t i;
size_t start_offset = *typeformat_offset;
const var_t *iid = get_attrp(attrs, ATTR_IIDIS);
if (iid)
{
expr_t expr;
expr.type = EXPR_IDENTIFIER;
expr.ref = NULL;
expr.u.sval = iid->name;
expr.is_const = FALSE;
print_file(file, 2, "0x2f, /* FC_IP */\n");
print_file(file, 2, "0x5c, /* FC_PAD */\n");
*typeformat_offset += write_conf_or_var_desc(file, func, NULL, 0, &expr) + 2;
}
else
{
const type_t *base = is_ptr(type) ? type->ref : type;
const UUID *uuid = get_attrp(base->attrs, ATTR_UUID);
if (! uuid)
error("%s: interface %s missing UUID\n", __FUNCTION__, base->name);
update_tfsoff(type, start_offset, file);
print_file(file, 0, "/* %d */\n", start_offset);
print_file(file, 2, "0x2f,\t/* FC_IP */\n");
print_file(file, 2, "0x5a,\t/* FC_CONSTANT_IID */\n");
print_file(file, 2, "NdrFcLong(0x%08lx),\n", uuid->Data1);
print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data2);
print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data3);
for (i = 0; i < 8; ++i)
print_file(file, 2, "0x%02x,\n", uuid->Data4[i]);
if (file)
fprintf(file, "\n");
*typeformat_offset += 18;
}
return start_offset;
}
static int get_ptr_attr(const type_t *t, int def_type)
{
while (TRUE)
{
int ptr_attr = get_attrv(t->attrs, ATTR_POINTERTYPE);
if (ptr_attr)
return ptr_attr;
if (t->kind != TKIND_ALIAS)
return def_type;
t = t->orig;
}
}
static size_t write_typeformatstring_var(FILE *file, int indent, const func_t *func,
type_t *type, const var_t *var,
unsigned int *typeformat_offset)
{
int pointer_type;
size_t offset;
if (is_user_type(type))
{
write_user_tfs(file, type, typeformat_offset);
return type->typestring_offset;
}
if (type == var->type) /* top-level pointers */
{
int pointer_attr = get_attrv(var->attrs, ATTR_POINTERTYPE);
if (pointer_attr != 0 && !is_ptr(type) && !is_array(type))
error("'%s': pointer attribute applied to non-pointer type\n", var->name);
if (pointer_attr == 0)
pointer_attr = get_ptr_attr(type, RPC_FC_RP);
pointer_type = pointer_attr;
}
else
pointer_type = get_ptr_attr(type, RPC_FC_UP);
if ((last_ptr(type) || last_array(type)) && is_ptrchain_attr(var, ATTR_STRING))
return write_string_tfs(file, var->attrs, type, var->name, typeformat_offset);
if (is_array(type))
return write_array_tfs(file, var->attrs, type, var->name, typeformat_offset);
if (!is_ptr(type))
{
/* basic types don't need a type format string */
if (is_base_type(type->type))
return 0;
switch (type->type)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
case RPC_FC_CVSTRUCT:
case RPC_FC_BOGUS_STRUCT:
return write_struct_tfs(file, type, var->name, typeformat_offset);
case RPC_FC_ENCAPSULATED_UNION:
case RPC_FC_NON_ENCAPSULATED_UNION:
return write_union_tfs(file, type, typeformat_offset);
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
/* nothing to do */
return 0;
default:
error("write_typeformatstring_var: Unsupported type 0x%x for variable %s\n", type->type, var->name);
}
}
else if (last_ptr(type))
{
size_t start_offset = *typeformat_offset;
int in_attr = is_attr(var->attrs, ATTR_IN);
int out_attr = is_attr(var->attrs, ATTR_OUT);
const type_t *base = type->ref;
if (base->type == RPC_FC_IP)
{
return write_ip_tfs(file, func, var->attrs, type, typeformat_offset);
}
/* special case for pointers to base types */
if (is_base_type(base->type))
{
print_file(file, indent, "0x%x, 0x%x, /* %s %s[simple_pointer] */\n",
pointer_type, (!in_attr && out_attr) ? 0x0C : 0x08,
string_of_type(pointer_type),
(!in_attr && out_attr) ? "[allocated_on_stack] " : "");
print_file(file, indent, "0x%02x, /* %s */\n", base->type, string_of_type(base->type));
print_file(file, indent, "0x5c, /* FC_PAD */\n");
*typeformat_offset += 4;
return start_offset;
}
}
assert(is_ptr(type));
offset = write_typeformatstring_var(file, indent, func, type->ref, var, typeformat_offset);
if (file)
fprintf(file, "/* %2u */\n", *typeformat_offset);
return write_pointer_only_tfs(file, var->attrs, pointer_type,
!last_ptr(type) ? 0x10 : 0,
offset, typeformat_offset);
}
static void set_tfswrite(type_t *type, int val)
{
while (type->tfswrite != val)
{
type_t *utype = get_user_type(type, NULL);
type->tfswrite = val;
if (utype)
set_tfswrite(utype, val);
if (type->kind == TKIND_ALIAS)
type = type->orig;
else if (is_ptr(type) || is_array(type))
type = type->ref;
else
{
if (type->fields)
{
var_t *v;
LIST_FOR_EACH_ENTRY( v, type->fields, var_t, entry )
if (v->type)
set_tfswrite(v->type, val);
}
return;
}
}
}
static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
const char *name, int write_ptr, unsigned int *tfsoff)
{
int retmask = 0;
if (is_user_type(type))
{
write_user_tfs(file, type, tfsoff);
}
else if (is_ptr(type))
{
type_t *ref = type->ref;
if (ref->type == RPC_FC_IP)
{
write_ip_tfs(file, NULL, attrs, type, tfsoff);
}
else
{
if (!processed(ref) && !is_base_type(ref->type))
retmask |= write_embedded_types(file, NULL, ref, name, TRUE, tfsoff);
if (write_ptr)
write_pointer_tfs(file, type, tfsoff);
retmask |= 1;
}
}
else if (type->declarray && is_conformant_array(type))
; /* conformant arrays and strings are handled specially */
else if (is_array(type))
{
write_array_tfs(file, attrs, type, name, tfsoff);
}
else if (is_struct(type->type))
{
if (!processed(type))
write_struct_tfs(file, type, name, tfsoff);
}
else if (is_union(type->type))
{
if (!processed(type))
write_union_tfs(file, type, tfsoff);
}
else if (!is_base_type(type->type))
error("write_embedded_types: unknown embedded type for %s (0x%x)\n",
name, type->type);
return retmask;
}
static void set_all_tfswrite(const ifref_list_t *ifaces, int val)
{
const ifref_t * iface;
const func_t *func;
const var_t *var;
if (ifaces)
LIST_FOR_EACH_ENTRY( iface, ifaces, const ifref_t, entry )
if (iface->iface->funcs)
LIST_FOR_EACH_ENTRY( func, iface->iface->funcs, const func_t, entry )
if (func->args)
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
set_tfswrite(var->type, val);
}
static size_t process_tfs(FILE *file, const ifref_list_t *ifaces, int for_objects)
{
const var_t *var;
const ifref_t *iface;
unsigned int typeformat_offset = 2;
if (ifaces) LIST_FOR_EACH_ENTRY( iface, ifaces, const ifref_t, entry )
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
{
const func_t *func;
LIST_FOR_EACH_ENTRY( func, iface->iface->funcs, const func_t, entry )
{
if (is_local(func->def->attrs)) continue;
current_func = func;
if (func->args)
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
update_tfsoff(
var->type,
write_typeformatstring_var(
file, 2, func, var->type, var,
&typeformat_offset),
file);
}
}
}
return typeformat_offset + 1;
}
void write_typeformatstring(FILE *file, const ifref_list_t *ifaces, int for_objects)
{
int indent = 0;
print_file(file, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "0,\n");
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "NdrFcShort(0x0),\n");
set_all_tfswrite(ifaces, TRUE);
process_tfs(file, ifaces, for_objects);
print_file(file, indent, "0x0\n");
indent--;
print_file(file, indent, "}\n");
indent--;
print_file(file, indent, "};\n");
print_file(file, indent, "\n");
}
static unsigned int get_required_buffer_size_type(
const type_t *type, const char *name, unsigned int *alignment)
{
size_t size = 0;
*alignment = 0;
if (is_user_type(type))
{
const char *uname;
const type_t *utype = get_user_type(type, &uname);
size = get_required_buffer_size_type(utype, uname, alignment);
}
else if (!is_ptr(type))
{
switch (type->type)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_USMALL:
case RPC_FC_SMALL:
*alignment = 4;
size = 1;
break;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ENUM16:
*alignment = 4;
size = 2;
break;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_ENUM32:
case RPC_FC_FLOAT:
case RPC_FC_ERROR_STATUS_T:
*alignment = 4;
size = 4;
break;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
*alignment = 8;
size = 8;
break;
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
return 0;
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
{
const var_t *field;
if (!type->fields) return 0;
LIST_FOR_EACH_ENTRY( field, type->fields, const var_t, entry )
{
unsigned int alignment;
size += get_required_buffer_size_type(field->type, field->name,
&alignment);
}
break;
}
case RPC_FC_RP:
if (is_base_type( type->ref->type ) || type->ref->type == RPC_FC_STRUCT)
size = get_required_buffer_size_type( type->ref, name, alignment );
break;
case RPC_FC_SMFARRAY:
case RPC_FC_LGFARRAY:
size = type->dim * get_required_buffer_size_type(type->ref, name, alignment);
break;
case RPC_FC_SMVARRAY:
case RPC_FC_LGVARRAY:
get_required_buffer_size_type(type->ref, name, alignment);
size = 0;
break;
case RPC_FC_CARRAY:
case RPC_FC_CVARRAY:
get_required_buffer_size_type(type->ref, name, alignment);
size = sizeof(void *);
break;
default:
error("get_required_buffer_size: Unknown/unsupported type: %s (0x%02x)\n", name, type->type);
return 0;
}
}
return size;
}
static unsigned int get_required_buffer_size(const var_t *var, unsigned int *alignment, enum pass pass)
{
int in_attr = is_attr(var->attrs, ATTR_IN);
int out_attr = is_attr(var->attrs, ATTR_OUT);
if (!in_attr && !out_attr)
in_attr = 1;
*alignment = 0;
if (pass == PASS_OUT)
{
if (out_attr && is_ptr(var->type))
{
type_t *type = var->type;
if (type->type == RPC_FC_STRUCT)
{
const var_t *field;
unsigned int size = 36;
if (!type->fields) return size;
LIST_FOR_EACH_ENTRY( field, type->fields, const var_t, entry )
{
unsigned int align;
size += get_required_buffer_size_type(
field->type, field->name, &align);
}
return size;
}
}
return 0;
}
else
{
if ((!out_attr || in_attr) && !var->type->size_is
&& !is_attr(var->attrs, ATTR_STRING) && !var->type->declarray)
{
if (is_ptr(var->type))
{
type_t *type = var->type;
if (is_base_type(type->type))
{
return 25;
}
else if (type->type == RPC_FC_STRUCT)
{
unsigned int size = 36;
const var_t *field;
if (!type->fields) return size;
LIST_FOR_EACH_ENTRY( field, type->fields, const var_t, entry )
{
unsigned int align;
size += get_required_buffer_size_type(
field->type, field->name, &align);
}
return size;
}
}
}
return get_required_buffer_size_type(var->type, var->name, alignment);
}
}
static unsigned int get_function_buffer_size( const func_t *func, enum pass pass )
{
const var_t *var;
unsigned int total_size = 0, alignment;
if (func->args)
{
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
total_size += get_required_buffer_size(var, &alignment, pass);
total_size += alignment;
}
}
if (pass == PASS_OUT && !is_void(func->def->type))
{
total_size += get_required_buffer_size(func->def, &alignment, PASS_RETURN);
total_size += alignment;
}
return total_size;
}
static void print_phase_function(FILE *file, int indent, const char *type,
enum remoting_phase phase,
const var_t *var, unsigned int type_offset)
{
const char *function;
switch (phase)
{
case PHASE_BUFFERSIZE:
function = "BufferSize";
break;
case PHASE_MARSHAL:
function = "Marshall";
break;
case PHASE_UNMARSHAL:
function = "Unmarshall";
break;
case PHASE_FREE:
function = "Free";
break;
default:
assert(0);
return;
}
print_file(file, indent, "Ndr%s%s(\n", type, function);
indent++;
print_file(file, indent, "&_StubMsg,\n");
print_file(file, indent, "%s%s%s%s,\n",
(phase == PHASE_UNMARSHAL) ? "(unsigned char **)" : "(unsigned char *)",
(phase == PHASE_UNMARSHAL || decl_indirect(var->type)) ? "&" : "",
(phase == PHASE_UNMARSHAL && decl_indirect(var->type)) ? "_p_" : "",
var->name);
print_file(file, indent, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]%s\n",
type_offset, (phase == PHASE_UNMARSHAL) ? "," : ");");
if (phase == PHASE_UNMARSHAL)
print_file(file, indent, "0);\n");
indent--;
}
void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase,
enum pass pass, const var_t *var,
const char *varname)
{
type_t *type = var->type;
unsigned int size;
unsigned int alignment = 0;
unsigned char rtype;
/* no work to do for other phases, buffer sizing is done elsewhere */
if (phase != PHASE_MARSHAL && phase != PHASE_UNMARSHAL)
return;
rtype = is_ptr(type) ? type->ref->type : type->type;
switch (rtype)
{
case RPC_FC_BYTE:
case RPC_FC_CHAR:
case RPC_FC_SMALL:
case RPC_FC_USMALL:
size = 1;
alignment = 1;
break;
case RPC_FC_WCHAR:
case RPC_FC_USHORT:
case RPC_FC_SHORT:
case RPC_FC_ENUM16:
size = 2;
alignment = 2;
break;
case RPC_FC_ULONG:
case RPC_FC_LONG:
case RPC_FC_ENUM32:
case RPC_FC_FLOAT:
case RPC_FC_ERROR_STATUS_T:
size = 4;
alignment = 4;
break;
case RPC_FC_HYPER:
case RPC_FC_DOUBLE:
size = 8;
alignment = 8;
break;
case RPC_FC_IGNORE:
case RPC_FC_BIND_PRIMITIVE:
/* no marshalling needed */
return;
default:
error("print_phase_basetype: Unsupported type: %s (0x%02x, ptr_level: 0)\n", var->name, rtype);
size = 0;
}
print_file(file, indent, "_StubMsg.Buffer = (unsigned char *)(((long)_StubMsg.Buffer + %u) & ~0x%x);\n",
alignment - 1, alignment - 1);
if (phase == PHASE_MARSHAL)
{
print_file(file, indent, "*(");
write_type(file, is_ptr(type) ? type->ref : type, FALSE, NULL);
if (is_ptr(type))
fprintf(file, " *)_StubMsg.Buffer = *");
else
fprintf(file, " *)_StubMsg.Buffer = ");
fprintf(file, varname);
fprintf(file, ";\n");
}
else if (phase == PHASE_UNMARSHAL)
{
if (pass == PASS_IN || pass == PASS_RETURN)
print_file(file, indent, "");
else
print_file(file, indent, "*");
fprintf(file, varname);
if (pass == PASS_IN && is_ptr(type))
fprintf(file, " = (");
else
fprintf(file, " = *(");
write_type(file, is_ptr(type) ? type->ref : type, FALSE, NULL);
fprintf(file, " *)_StubMsg.Buffer;\n");
}
print_file(file, indent, "_StubMsg.Buffer += sizeof(");
write_type(file, var->type, FALSE, NULL);
fprintf(file, ");\n");
}
/* returns whether the MaxCount, Offset or ActualCount members need to be
* filled in for the specified phase */
static inline int is_size_needed_for_phase(enum remoting_phase phase)
{
return (phase != PHASE_UNMARSHAL);
}
void write_remoting_arguments(FILE *file, int indent, const func_t *func,
enum pass pass, enum remoting_phase phase)
{
int in_attr, out_attr, pointer_type;
const var_t *var;
if (!func->args)
return;
if (phase == PHASE_BUFFERSIZE)
{
unsigned int size = get_function_buffer_size( func, pass );
print_file(file, indent, "_StubMsg.BufferLength = %u;\n", size);
}
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
const type_t *type = var->type;
unsigned char rtype;
size_t start_offset = type->typestring_offset;
pointer_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
if (!pointer_type)
pointer_type = RPC_FC_RP;
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!in_attr && !out_attr)
in_attr = 1;
switch (pass)
{
case PASS_IN:
if (!in_attr) continue;
break;
case PASS_OUT:
if (!out_attr) continue;
break;
case PASS_RETURN:
break;
}
rtype = type->type;
if (is_user_type(var->type))
{
print_phase_function(file, indent, "UserMarshal", phase, var, start_offset);
}
else if (is_string_type(var->attrs, var->type))
{
if (is_array(type) && !is_conformant_array(type))
print_phase_function(file, indent, "NonConformantString", phase, var, start_offset);
else
{
if (type->size_is && is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1);
fprintf(file, ";\n");
}
if ((phase == PHASE_FREE) || (pointer_type == RPC_FC_UP))
print_phase_function(file, indent, "Pointer", phase, var, start_offset);
else
print_phase_function(file, indent, "ConformantString", phase, var,
start_offset + (type->size_is ? 4 : 2));
}
}
else if (is_array(type))
{
unsigned char tc = type->type;
const char *array_type;
if (tc == RPC_FC_SMFARRAY || tc == RPC_FC_LGFARRAY)
array_type = "FixedArray";
else if (tc == RPC_FC_SMVARRAY || tc == RPC_FC_LGVARRAY)
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, type->length_is, 1);
fprintf(file, ";\n\n");
}
array_type = "VaryingArray";
}
else if (tc == RPC_FC_CARRAY)
{
if (is_size_needed_for_phase(phase) && phase != PHASE_FREE)
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1);
fprintf(file, ";\n\n");
}
array_type = "ConformantArray";
}
else if (tc == RPC_FC_CVARRAY)
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1);
fprintf(file, ";\n");
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, type->length_is, 1);
fprintf(file, ";\n\n");
}
array_type = "ConformantVaryingArray";
}
else
array_type = "ComplexArray";
if (!in_attr && phase == PHASE_FREE)
{
print_file(file, indent, "if (%s)\n", var->name);
indent++;
print_file(file, indent, "_StubMsg.pfnFree(%s);\n", var->name);
}
else if (phase != PHASE_FREE)
{
if (pointer_type == RPC_FC_UP)
print_phase_function(file, indent, "Pointer", phase, var, start_offset);
else
print_phase_function(file, indent, array_type, phase, var, start_offset);
}
}
else if (!is_ptr(var->type) && is_base_type(rtype))
{
print_phase_basetype(file, indent, phase, pass, var, var->name);
}
else if (!is_ptr(var->type))
{
switch (rtype)
{
case RPC_FC_STRUCT:
case RPC_FC_PSTRUCT:
print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset);
break;
case RPC_FC_CSTRUCT:
case RPC_FC_CPSTRUCT:
print_phase_function(file, indent, "ConformantStruct", phase, var, start_offset);
break;
case RPC_FC_CVSTRUCT:
print_phase_function(file, indent, "ConformantVaryingStruct", phase, var, start_offset);
break;
case RPC_FC_BOGUS_STRUCT:
print_phase_function(file, indent, "ComplexStruct", phase, var, start_offset);
break;
case RPC_FC_RP:
if (is_base_type( var->type->ref->type ))
{
print_phase_basetype(file, indent, phase, pass, var, var->name);
}
else if (var->type->ref->type == RPC_FC_STRUCT)
{
if (phase != PHASE_BUFFERSIZE && phase != PHASE_FREE)
print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset + 4);
}
else
{
const var_t *iid;
if ((iid = get_attrp( var->attrs, ATTR_IIDIS )))
print_file( file, indent, "_StubMsg.MaxCount = (unsigned long)%s;\n", iid->name );
print_phase_function(file, indent, "Pointer", phase, var, start_offset);
}
break;
default:
error("write_remoting_arguments: Unsupported type: %s (0x%02x)\n", var->name, rtype);
}
}
else
{
if (last_ptr(var->type) && (pointer_type == RPC_FC_RP) && is_base_type(rtype))
{
print_phase_basetype(file, indent, phase, pass, var, var->name);
}
else if (last_ptr(var->type) && (pointer_type == RPC_FC_RP) && (rtype == RPC_FC_STRUCT))
{
if (phase != PHASE_BUFFERSIZE && phase != PHASE_FREE)
print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset + 4);
}
else
{
const var_t *iid;
if ((iid = get_attrp( var->attrs, ATTR_IIDIS )))
print_file( file, indent, "_StubMsg.MaxCount = (unsigned long)%s;\n", iid->name );
print_phase_function(file, indent, "Pointer", phase, var, start_offset);
}
}
fprintf(file, "\n");
}
}
size_t get_size_procformatstring_var(const var_t *var)
{
return write_procformatstring_var(NULL, 0, var, FALSE);
}
size_t get_size_procformatstring_func(const func_t *func)
{
const var_t *var;
size_t size = 0;
/* argument list size */
if (func->args)
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
size += get_size_procformatstring_var(var);
/* return value size */
if (is_void(func->def->type))
size += 2; /* FC_END and FC_PAD */
else
size += get_size_procformatstring_var(func->def);
return size;
}
size_t get_size_procformatstring(const ifref_list_t *ifaces, int for_objects)
{
const ifref_t *iface;
size_t size = 1;
const func_t *func;
if (ifaces) LIST_FOR_EACH_ENTRY( iface, ifaces, const ifref_t, entry )
{
if (for_objects != is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
if (iface->iface->funcs)
LIST_FOR_EACH_ENTRY( func, iface->iface->funcs, const func_t, entry )
if (!is_local(func->def->attrs))
size += get_size_procformatstring_func( func );
}
return size;
}
size_t get_size_typeformatstring(const ifref_list_t *ifaces, int for_objects)
{
set_all_tfswrite(ifaces, FALSE);
return process_tfs(NULL, ifaces, for_objects);
}
static void write_struct_expr(FILE *h, const expr_t *e, int brackets,
const var_list_t *fields, const char *structvar)
{
switch (e->type) {
case EXPR_VOID:
break;
case EXPR_NUM:
fprintf(h, "%lu", e->u.lval);
break;
case EXPR_HEXNUM:
fprintf(h, "0x%lx", e->u.lval);
break;
case EXPR_TRUEFALSE:
if (e->u.lval == 0)
fprintf(h, "FALSE");
else
fprintf(h, "TRUE");
break;
case EXPR_IDENTIFIER:
{
const var_t *field;
LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry )
if (!strcmp(e->u.sval, field->name))
{
fprintf(h, "%s->%s", structvar, e->u.sval);
break;
}
if (&field->entry == fields) error("no field found for identifier %s\n", e->u.sval);
break;
}
case EXPR_NEG:
fprintf(h, "-");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_NOT:
fprintf(h, "~");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_PPTR:
fprintf(h, "*");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_CAST:
fprintf(h, "(");
write_type(h, e->u.tref, FALSE, NULL);
fprintf(h, ")");
write_struct_expr(h, e->ref, 1, fields, structvar);
break;
case EXPR_SIZEOF:
fprintf(h, "sizeof(");
write_type(h, e->u.tref, FALSE, NULL);
fprintf(h, ")");
break;
case EXPR_SHL:
case EXPR_SHR:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_ADD:
case EXPR_SUB:
case EXPR_AND:
case EXPR_OR:
if (brackets) fprintf(h, "(");
write_struct_expr(h, e->ref, 1, fields, structvar);
switch (e->type) {
case EXPR_SHL: fprintf(h, " << "); break;
case EXPR_SHR: fprintf(h, " >> "); break;
case EXPR_MUL: fprintf(h, " * "); break;
case EXPR_DIV: fprintf(h, " / "); break;
case EXPR_ADD: fprintf(h, " + "); break;
case EXPR_SUB: fprintf(h, " - "); break;
case EXPR_AND: fprintf(h, " & "); break;
case EXPR_OR: fprintf(h, " | "); break;
default: break;
}
write_struct_expr(h, e->u.ext, 1, fields, structvar);
if (brackets) fprintf(h, ")");
break;
case EXPR_COND:
if (brackets) fprintf(h, "(");
write_struct_expr(h, e->ref, 1, fields, structvar);
fprintf(h, " ? ");
write_struct_expr(h, e->u.ext, 1, fields, structvar);
fprintf(h, " : ");
write_struct_expr(h, e->ext2, 1, fields, structvar);
if (brackets) fprintf(h, ")");
break;
}
}
void declare_stub_args( FILE *file, int indent, const func_t *func )
{
int in_attr, out_attr;
int i = 0;
const var_t *def = func->def;
const var_t *var;
/* declare return value '_RetVal' */
if (!is_void(def->type))
{
print_file(file, indent, "");
write_type_left(file, def->type);
fprintf(file, " _RetVal;\n");
}
if (!func->args)
return;
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
int is_string = is_attr(var->attrs, ATTR_STRING);
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!out_attr && !in_attr)
in_attr = 1;
if (!in_attr && !var->type->size_is && !is_string)
{
print_file(file, indent, "");
write_type(file, var->type->ref, FALSE, "_W%u", i++);
fprintf(file, ";\n");
}
print_file(file, indent, "");
write_type_left(file, var->type);
fprintf(file, " ");
if (var->type->declarray) {
fprintf(file, "( *");
write_name(file, var);
fprintf(file, " )");
} else
write_name(file, var);
write_type_right(file, var->type, FALSE);
fprintf(file, ";\n");
if (decl_indirect(var->type))
print_file(file, indent, "void *_p_%s = &%s;\n",
var->name, var->name);
}
}
void assign_stub_out_args( FILE *file, int indent, const func_t *func )
{
int in_attr, out_attr;
int i = 0, sep = 0;
const var_t *var;
if (!func->args)
return;
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
int is_string = is_attr(var->attrs, ATTR_STRING);
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!out_attr && !in_attr)
in_attr = 1;
if (!in_attr)
{
print_file(file, indent, "");
write_name(file, var);
if (var->type->size_is)
{
unsigned int size, align = 0;
type_t *type = var->type;
fprintf(file, " = NdrAllocate(&_StubMsg, ");
for ( ; type->size_is ; type = type->ref)
{
write_expr(file, type->size_is, TRUE);
fprintf(file, " * ");
}
size = type_memsize(type, &align);
fprintf(file, "%u);\n", size);
}
else if (!is_string)
{
fprintf(file, " = &_W%u;\n", i);
if (is_ptr(var->type) && !last_ptr(var->type))
print_file(file, indent, "_W%u = 0;\n", i);
i++;
}
sep = 1;
}
}
if (sep)
fprintf(file, "\n");
}
int write_expr_eval_routines(FILE *file, const char *iface)
{
int result = 0;
struct expr_eval_routine *eval;
unsigned short callback_offset = 0;
LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
{
int indent = 0;
result = 1;
print_file(file, indent, "static void __RPC_USER %s_%sExprEval_%04u(PMIDL_STUB_MESSAGE pStubMsg)\n",
iface, eval->structure->name, callback_offset);
print_file(file, indent, "{\n");
indent++;
print_file(file, indent, "struct %s *" STRUCT_EXPR_EVAL_VAR " = (struct %s *)(pStubMsg->StackTop - %u);\n",
eval->structure->name, eval->structure->name, eval->structure_size);
fprintf(file, "\n");
print_file(file, indent, "pStubMsg->Offset = 0;\n"); /* FIXME */
print_file(file, indent, "pStubMsg->MaxCount = (unsigned long)");
write_struct_expr(file, eval->expr, 1, eval->structure->fields, STRUCT_EXPR_EVAL_VAR);
fprintf(file, ";\n");
indent--;
print_file(file, indent, "}\n\n");
callback_offset++;
}
return result;
}
void write_expr_eval_routine_list(FILE *file, const char *iface)
{
struct expr_eval_routine *eval;
struct expr_eval_routine *cursor;
unsigned short callback_offset = 0;
fprintf(file, "static const EXPR_EVAL ExprEvalRoutines[] =\n");
fprintf(file, "{\n");
LIST_FOR_EACH_ENTRY_SAFE(eval, cursor, &expr_eval_routines, struct expr_eval_routine, entry)
{
print_file(file, 1, "%s_%sExprEval_%04u,\n",
iface, eval->structure->name, callback_offset);
callback_offset++;
list_remove(&eval->entry);
free(eval);
}
fprintf(file, "};\n\n");
}
void write_user_quad_list(FILE *file)
{
user_type_t *ut;
if (list_empty(&user_type_list))
return;
fprintf(file, "static const USER_MARSHAL_ROUTINE_QUADRUPLE UserMarshalRoutines[] =\n");
fprintf(file, "{\n");
LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
{
const char *sep = &ut->entry == list_tail(&user_type_list) ? "" : ",";
print_file(file, 1, "{\n");
print_file(file, 2, "(USER_MARSHAL_SIZING_ROUTINE)%s_UserSize,\n", ut->name);
print_file(file, 2, "(USER_MARSHAL_MARSHALLING_ROUTINE)%s_UserMarshal,\n", ut->name);
print_file(file, 2, "(USER_MARSHAL_UNMARSHALLING_ROUTINE)%s_UserUnmarshal,\n", ut->name);
print_file(file, 2, "(USER_MARSHAL_FREEING_ROUTINE)%s_UserFree\n", ut->name);
print_file(file, 1, "}%s\n", sep);
}
fprintf(file, "};\n\n");
}
void write_endpoints( FILE *f, const char *prefix, const str_list_t *list )
{
const struct str_list_entry_t *endpoint;
const char *p;
/* this should be an array of RPC_PROTSEQ_ENDPOINT but we want const strings */
print_file( f, 0, "static const unsigned char * %s__RpcProtseqEndpoint[][2] =\n{\n", prefix );
LIST_FOR_EACH_ENTRY( endpoint, list, const struct str_list_entry_t, entry )
{
print_file( f, 1, "{ (const unsigned char *)\"" );
for (p = endpoint->str; *p && *p != ':'; p++)
{
if (*p == '"' || *p == '\\') fputc( '\\', f );
fputc( *p, f );
}
if (!*p) goto error;
if (p[1] != '[') goto error;
fprintf( f, "\", (const unsigned char *)\"" );
for (p += 2; *p && *p != ']'; p++)
{
if (*p == '"' || *p == '\\') fputc( '\\', f );
fputc( *p, f );
}
if (*p != ']') goto error;
fprintf( f, "\" },\n" );
}
print_file( f, 0, "};\n\n" );
return;
error:
error("Invalid endpoint syntax '%s'\n", endpoint->str);
}
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