2 * Definitions for protocol display
4 * $Id: proto.h,v 1.24 2001/12/07 03:39:26 gram Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
43 #include "ftypes/ftypes.h"
46 typedef GNode proto_tree;
47 typedef GNode proto_item;
50 #define ITEM_LABEL_LENGTH 240
52 /* In order to make a const value_string[] look like a value_string*, I
54 #define VALS(x) (struct value_string*)(x)
56 /* ... and similarly, */
57 #define TFS(x) (struct true_false_string*)(x)
59 /* check protocol activation */
60 #define CHECK_DISPLAY_AS_X(x_handle,index, tvb, pinfo, tree) { \
61 if (!proto_is_protocol_enabled(index)) { \
62 call_dissector(x_handle,tvb, pinfo, tree); \
75 typedef struct _header_field_info header_field_info;
77 /* information describing a header field */
78 struct _header_field_info {
79 /* ---------- set by dissector --------- */
83 int display; /* for integers only, so far. Base */
84 void *strings; /* val_string or true_false_string */
86 char *blurb; /* Brief description of field. */
88 /* ---------- set by proto routines --------- */
89 int id; /* Field ID */
90 int parent; /* parent protocol */
91 int bitshift; /* bits to shift */
92 header_field_info *same_name_next; /* Link to next hfinfo with same abbrev*/
93 header_field_info *same_name_prev; /* Link to previous hfinfo with same abbrev*/
97 * HFILL initializes all the "set by proto routines" fields in a
98 * "header_field_info"; if new fields are added or removed, it should
99 * be changed as necessary.
101 #define HFILL 0, 0, 0, NULL, NULL
103 /* Used when registering many fields at once */
104 typedef struct hf_register_info {
105 int *p_id; /* pointer to int; written to by register() function */
106 header_field_info hfinfo;
110 /* Info stored in each proto_item GNode */
111 typedef struct field_info {
112 header_field_info *hfinfo;
115 gint tree_type; /* ETT_* */
116 char *representation; /* for GUI tree */
119 gchar *ds_name; /* data source name */
123 /* Sets up memory used by proto routines. Called at program startup */
124 extern void proto_init(const char *plugin_dir,
125 void (register_all_protocols)(void), void (register_all_handoffs)(void));
127 /* Frees memory used by proto routines. Called at program shutdown */
128 extern void proto_cleanup(void);
130 /* Set text of proto_item after having already been created. */
132 extern void proto_item_set_text(proto_item *ti, const char *format, ...)
133 __attribute__((format (printf, 2, 3)));
135 extern void proto_item_set_text(proto_item *ti, const char *format, ...);
138 /* Append to text of proto_item after having already been created. */
140 extern void proto_item_append_text(proto_item *ti, const char *format, ...)
141 __attribute__((format (printf, 2, 3)));
143 extern void proto_item_append_text(proto_item *ti, const char *format, ...);
146 /* Set length of proto_item after having already been created. */
147 extern void proto_item_set_len(proto_item *ti, gint length);
149 /* Get length of proto_item. Useful after using proto_tree_add_item()
150 * to add a variable-length field (e.g., FT_NSTRING_UINT8) */
151 extern int proto_item_get_len(proto_item *ti);
153 /* Creates new proto_tree root */
154 extern proto_tree* proto_tree_create_root(void);
156 /* Clear memory for entry proto_tree. Clears proto_tree struct also. */
157 extern void proto_tree_free(proto_tree *tree);
159 /* Create a subtree under an existing item; returns tree pointer */
160 extern proto_tree* proto_item_add_subtree(proto_item *ti, gint idx);
163 proto_register_field(char *name, char *abbrev, enum ftenum type, int parent,
164 struct value_string* vals);
167 proto_register_protocol(char *name, char *short_name, char *filter_name);
170 proto_register_field_array(int parent, hf_register_info *hf, int num_records);
173 proto_register_subtree_array(gint **indices, int num_indices);
175 /* Add an item to a proto_tree, using the text label registered to that item;
176 the item is extracted from the tvbuff handed to it. */
178 proto_tree_add_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
179 gint start, gint length, gboolean little_endian);
182 proto_tree_add_item_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb,
183 gint start, gint length, gboolean little_endian);
185 /* Add a FT_NONE to a proto_tree */
188 proto_tree_add_none_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
189 gint length, const char *format, ...)
190 __attribute__((format (printf, 6, 7)));
193 proto_tree_add_none_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
194 gint length, const char *format, ...);
197 /* Add a FT_PROTOCOL to a proto_tree */
200 proto_tree_add_protocol_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
201 gint length, const char *format, ...)
202 __attribute__((format (printf, 6, 7)));
205 proto_tree_add_protocol_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
206 gint length, const char *format, ...);
209 /* Add a FT_BYTES to a proto_tree */
211 proto_tree_add_bytes(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
212 gint length, const guint8* start_ptr);
215 proto_tree_add_bytes_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
216 gint length, const guint8* start_ptr);
220 proto_tree_add_bytes_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
221 gint length, const guint8* start_ptr, const char *format, ...)
222 __attribute__((format (printf, 7, 8)));
225 proto_tree_add_bytes_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
226 gint length, const guint8* start_ptr, const char *format, ...);
229 /* Add a FT_*TIME to a proto_tree */
231 proto_tree_add_time(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
232 gint length, nstime_t* value_ptr);
235 proto_tree_add_time_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
236 gint length, nstime_t* value_ptr);
240 proto_tree_add_time_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
241 gint length, nstime_t* value_ptr, const char *format, ...)
242 __attribute__((format (printf, 7, 8)));
245 proto_tree_add_time_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
246 gint length, nstime_t* value_ptr, const char *format, ...);
249 /* Add a FT_IPXNET to a proto_tree */
251 proto_tree_add_ipxnet(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
252 gint length, guint32 value);
255 proto_tree_add_ipxnet_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
256 gint length, guint32 value);
260 proto_tree_add_ipxnet_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
261 gint length, guint32 value, const char *format, ...)
262 __attribute__((format (printf, 7, 8)));
265 proto_tree_add_ipxnet_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
266 gint length, guint32 value, const char *format, ...);
269 /* Add a FT_IPv4 to a proto_tree */
271 proto_tree_add_ipv4(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
272 gint length, guint32 value);
275 proto_tree_add_ipv4_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
276 gint length, guint32 value);
280 proto_tree_add_ipv4_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
281 gint length, guint32 value, const char *format, ...)
282 __attribute__((format (printf, 7, 8)));
285 proto_tree_add_ipv4_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
286 gint length, guint32 value, const char *format, ...);
289 /* Add a FT_IPv6 to a proto_tree */
291 proto_tree_add_ipv6(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
292 gint length, const guint8* value_ptr);
295 proto_tree_add_ipv6_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
296 gint length, const guint8* value_ptr);
300 proto_tree_add_ipv6_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
301 gint length, const guint8* value_ptr, const char *format, ...)
302 __attribute__((format (printf, 7, 8)));
305 proto_tree_add_ipv6_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
306 gint length, const guint8* value_ptr, const char *format, ...);
309 /* Add a FT_ETHER to a proto_tree */
311 proto_tree_add_ether(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
312 gint length, const guint8* value);
315 proto_tree_add_ether_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
316 gint length, const guint8* value);
320 proto_tree_add_ether_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
321 gint length, const guint8* value, const char *format, ...)
322 __attribute__((format (printf, 7, 8)));
325 proto_tree_add_ether_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
326 gint length, const guint8* value, const char *format, ...);
329 /* Add a FT_STRING to a proto_tree */
331 proto_tree_add_string(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
332 gint length, const char* value);
335 proto_tree_add_string_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
336 gint length, const char* value);
340 proto_tree_add_string_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
341 gint length, const char* value, const char *format, ...)
342 __attribute__((format (printf, 7, 8)));
345 proto_tree_add_string_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
346 gint length, const char* value, const char *format, ...);
349 /* Add a FT_BOOLEAN to a proto_tree */
351 proto_tree_add_boolean(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
352 gint length, guint32 value);
355 proto_tree_add_boolean_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
356 gint length, guint32 value);
360 proto_tree_add_boolean_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
361 gint length, guint32 value, const char *format, ...)
362 __attribute__((format (printf, 7, 8)));
365 proto_tree_add_boolean_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
366 gint length, guint32 value, const char *format, ...);
369 /* Add a FT_DOUBLE to a proto_tree */
371 proto_tree_add_double(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
372 gint length, double value);
375 proto_tree_add_double_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
376 gint length, double value);
380 proto_tree_add_double_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
381 gint length, double value, const char *format, ...)
382 __attribute__((format (printf, 7, 8)));
385 proto_tree_add_double_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
386 gint length, double value, const char *format, ...);
389 /* Add any FT_UINT* to a proto_tree */
391 proto_tree_add_uint(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
392 gint length, guint32 value);
395 proto_tree_add_uint_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
396 gint length, guint32 value);
400 proto_tree_add_uint_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
401 gint length, guint32 value, const char *format, ...)
402 __attribute__((format (printf, 7, 8)));
405 proto_tree_add_uint_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
406 gint length, guint32 value, const char *format, ...);
409 /* Add any FT_INT* to a proto_tree */
411 proto_tree_add_int(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
412 gint length, gint32 value);
415 proto_tree_add_int_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
416 gint length, gint32 value);
420 proto_tree_add_int_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
421 gint length, gint32 value, const char *format, ...)
422 __attribute__((format (printf, 7, 8)));
425 proto_tree_add_int_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
426 gint length, gint32 value, const char *format, ...);
430 /* Add a text-only node to the proto_tree */
433 proto_tree_add_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, const char *,
434 ...) __attribute__((format (printf, 5, 6)));
437 proto_tree_add_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, const char *,
442 proto_tree_add_text_valist(proto_tree *tree, tvbuff_t *tvb, gint start,
443 gint length, const char *format, va_list ap);
446 /* Useful for quick debugging. Also sends string to STDOUT, so don't
447 * leave call to this function in production code. */
450 proto_tree_add_debug_text(proto_tree *tree, const char *format, ...)
451 __attribute__((format (printf, 2, 3)));
454 proto_tree_add_debug_text(proto_tree *tree, const char *format, ...);
458 proto_item_fill_label(field_info *fi, gchar *label_str);
460 /* Returns number of items (protocols or header fields) registered. */
461 extern int proto_registrar_n(void);
463 /* Returns char* to name for item # n (0-indexed) */
464 extern char* proto_registrar_get_name(int n);
466 /* Returns char* to abbrev for item # n (0-indexed) */
467 extern char* proto_registrar_get_abbrev(int n);
469 /* get the header field information based upon a field or protocol id */
470 extern header_field_info* proto_registrar_get_nth(int hfindex);
472 /* Returns enum ftenum for item # n */
473 extern int proto_registrar_get_ftype(int n);
475 /* Returns parent protocol for item # n.
476 * Returns -1 if item _is_ a protocol */
477 extern int proto_registrar_get_parent(int n);
479 /* Is item #n a protocol? */
480 extern gboolean proto_registrar_is_protocol(int n);
482 /* Is item #n decoding enabled ? */
483 extern gboolean proto_is_protocol_enabled(int proto_id);
485 /* Can item #n decoding be disabled? */
486 extern gboolean proto_can_disable_protocol(int proto_id);
488 /* Routines to use to iterate over the protocols; they return the item
489 * number of the protocol in question, and keep state in "*cookie". */
490 extern int proto_get_first_protocol(void **cookie);
491 extern int proto_get_next_protocol(void **cookie);
493 /* Given a protocol's filter_name, return it's proto_id */
494 extern int proto_get_id_by_filter_name(gchar* filter_name);
496 /* Given a protocol's item number, return its name. */
497 extern char *proto_get_protocol_name(int n);
499 /* Given a protocol's item number, return its short name. */
500 extern char *proto_get_protocol_short_name(int proto_id);
502 /* Given a protocol's item number, return its filter name. */
503 extern char *proto_get_protocol_filter_name(int proto_id);
505 /* Enable / Disable protocol */
506 extern void proto_set_decoding(int proto_id, gboolean enabled);
508 /* Disable disabling of protocol */
509 extern void proto_set_cant_disable(int proto_id);
511 /* Get length of registered field according to field type.
512 * 0 means undeterminable at registration time.
513 * -1 means unknown field */
514 extern gint proto_registrar_get_length(int n);
516 /* Checks for existence any protocol or field within a tree.
517 * "Protocols" are assumed to be a child of the [empty] root node.
518 * TRUE = found, FALSE = not found */
519 extern gboolean proto_check_for_protocol_or_field(proto_tree* tree, int id);
521 /* Return GPtrArray* of field_info pointers for all hfindex that appear in
523 extern GPtrArray* proto_get_finfo_ptr_array(proto_tree *tree, int hfindex);
525 /* Dumps a glossary of the protocol and field registrations to STDOUT */
526 extern void proto_registrar_dump(void);
528 /* Is the parsing being done for a visible proto_tree or an invisible one?
529 * By setting this correctly, the proto_tree creation is sped up by not
530 * having to call vsnprintf and copy strings around.
532 extern gboolean proto_tree_is_visible;
534 /* Points to the first element of an array of Booleans, indexed by
535 a subtree item type; that array element is TRUE if subtrees of
536 an item of that type are to be expanded.
538 ETT_NONE is reserved for unregistered subtree types. */
540 extern gboolean *tree_is_expanded;
542 /* Number of elements in that array. */
543 extern int num_tree_types;
545 /* glib doesn't have g_ptr_array_len of all things!*/
546 #ifndef g_ptr_array_len
547 #define g_ptr_array_len(a) ((a)->len)
551 hfinfo_bitwidth(header_field_info *hfinfo);
554 * Returns TRUE if we can do a "match selected" on the field, FALSE
558 proto_can_match_selected(field_info *finfo);
561 proto_alloc_dfilter_string(field_info *finfo, guint8 *pd);
564 proto_find_field_from_offset(proto_tree *tree, guint offset, gchar *ds_name);