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Diffstat (limited to 'epan/dissectors/packet-epl.h')
-rw-r--r-- | epan/dissectors/packet-epl.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/epan/dissectors/packet-epl.h b/epan/dissectors/packet-epl.h new file mode 100644 index 00000000..fd145acf --- /dev/null +++ b/epan/dissectors/packet-epl.h @@ -0,0 +1,115 @@ +/* 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 |