/* 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 <epan/address.h>

#include <epan/wmem_scopes.h>

#include <epan/range.h>

struct epl_datatype;

struct profile {

  uint16_t id;

  uint8_t nodeid;

  address node_addr;

  uint32_t vendor_id;

  uint32_t product_code;

  wmem_map_t *objects;

  wmem_allocator_t *scope, *parent_scope;

  wmem_map_t *parent_map;

  char *name;

  char *path;

  void *data;

  unsigned 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 {

  uint16_t 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

   */

  uint16_t type_class;

  char name[64];

  /* Called DataType by the standard,

   * Can be e.g. Unsigned32

   */

  const struct epl_datatype *type;

  uint64_t 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(const void *_a, const void *_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);

}

Unexecuted instantiation: packet-epl.c:subobject_equal

Unexecuted instantiation: packet-epl-profile-parser.c:subobject_equal

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, uint16_t idx);

struct object *epl_profile_object_lookup_or_add(struct profile *profile, uint16_t idx);

bool epl_profile_object_mapping_add(struct profile *profile, uint16_t idx, uint8_t subindex, uint64_t mapping);

bool epl_profile_object_mappings_update(struct profile *profile);

range_admin_t * epl_wmem_iarray_find(epl_wmem_iarray_t *arr, uint32_t value);

bool epl_wmem_iarray_is_empty(epl_wmem_iarray_t *iarr);

bool epl_wmem_iarray_is_sorted(epl_wmem_iarray_t *iarr);

#define EPL_OBJECT_MAPPING_SIZE ((unsigned)sizeof (uint64_t))

#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