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/* packet-epl.h
* Routines for "Ethernet POWERLINK 2.0" dissection
* (Ethernet POWERLINK V2.0 Communication Profile Specification Draft Standard Version 1.2.0)
*
* A dissector for:
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __EPL_H_
#define __EPL_H_
#include <glib.h>
#include <epan/address.h>
#include <epan/wmem_scopes.h>
#include <epan/range.h>
struct epl_datatype;
struct profile {
guint16 id;
guint8 nodeid;
address node_addr;
guint32 vendor_id;
guint32 product_code;
wmem_map_t *objects;
wmem_allocator_t *scope, *parent_scope;
wmem_map_t *parent_map;
char *name;
char *path;
void *data;
guint cb_id;
wmem_array_t *TPDO; /* CN->MN */
wmem_array_t *RPDO; /* MN->CN */
struct profile *next;
};
enum { OD_ENTRY_SCALAR = 7, OD_ENTRY_ARRAY = 8, OD_ENTRY_RECORD = 9 };
struct od_entry {
guint16 idx;
/* This is called the ObjectType in the standard,
* but this is too easy to be mistaken with the
* DataType.
* ObjectType specifies whether it's a scalar or
* an aggregate
*/
guint16 type_class;
char name[64];
/* Called DataType by the standard,
* Can be e.g. Unsigned32
*/
const struct epl_datatype *type;
guint64 value;
};
#define OD_ENTRY_INITIALIZER { 0, 0, { 0 }, 0, 0 }
struct subobject {
range_admin_t range;
struct od_entry info;
};
#define SUBOBJECT_INITIALIZER { RANGE_ADMIN_T_INITIALIZER, OD_ENTRY_INITIALIZER }
typedef struct epl_wmem_iarray epl_wmem_iarray_t;
struct object {
struct od_entry info;
epl_wmem_iarray_t *subindices;
};
struct profile;
const struct epl_datatype *epl_type_to_hf(const char *name);
static inline gboolean
subobject_equal(gconstpointer _a, gconstpointer _b)
{
const struct od_entry *a = &((const struct subobject*)_a)->info;
const struct od_entry *b = &((const struct subobject*)_b)->info;
return a->type_class == b->type_class
&& a->type == b->type
&& g_str_equal(a->name, b->name);
}
struct profile *epl_xdd_load(struct profile *profile, const char *xml_file);
void epl_eds_init(void);
struct profile *epl_eds_load(struct profile *profile, const char *eds_file);
struct object *epl_profile_object_add(struct profile *profile, guint16 idx);
struct object *epl_profile_object_lookup_or_add(struct profile *profile, guint16 idx);
gboolean epl_profile_object_mapping_add(struct profile *profile, guint16 idx, guint8 subindex, guint64 mapping);
gboolean epl_profile_object_mappings_update(struct profile *profile);
range_admin_t * epl_wmem_iarray_find(epl_wmem_iarray_t *arr, guint32 value);
gboolean epl_wmem_iarray_is_empty(epl_wmem_iarray_t *iarr);
gboolean epl_wmem_iarray_is_sorted(epl_wmem_iarray_t *iarr);
#define EPL_OBJECT_MAPPING_SIZE ((guint)sizeof (guint64))
#define CHECK_OVERLAP_ENDS(x1, x2, y1, y2) ((x1) < (y2) && (y1) < (x2))
#define CHECK_OVERLAP_LENGTH(x, x_len, y, y_len) \
CHECK_OVERLAP_ENDS((x), (x) + (x_len), (y), (y) + (y_len))
#endif
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