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