2 * Definitions for protocol display
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 The protocol tree related functions.<BR>
26 A protocol tree will hold all necessary data to display the whole dissected packet.
27 Creating a protocol tree is done in a two stage process:
28 A static part at program startup, and a dynamic part when the dissection with the real packet data is done.<BR>
29 The "static" information is provided by creating a hf_register_info hf[] array, and register it using the
30 proto_register_field_array() function. This is usually done at dissector registering.<BR>
31 The "dynamic" information is added to the protocol tree by calling one of the proto_tree_add_...() functions,
32 e.g. proto_tree_add_bytes().
46 #include <epan/emem.h>
47 #include <epan/wmem/wmem.h>
50 #include "wsutil/nstime.h"
53 #include "ftypes/ftypes.h"
55 #include "ws_symbol_export.h"
59 #endif /* __cplusplus */
61 /** @defgroup prototree The Protocol Tree
63 * Dissectors use proto_tree_add_* to add items to the protocol tree. In
64 * most cases you'll want to use proto_tree_add_item(). In general
65 * proto_tree_add_text() should be avoided unless you explicitly don't
66 * want to allow filtering.
71 /** The header-field index for the special text pseudo-field. Exported by libwireshark.dll */
72 WS_DLL_PUBLIC int hf_text_only;
74 /** the maximum length of a protocol field string representation */
75 #define ITEM_LABEL_LENGTH 240
80 /** Make a const value_string[] look like a _value_string pointer, used to set header_field_info.strings */
81 #define VALS(x) (const struct _value_string*)(x)
83 /** Make a const val64_string[] look like a _val64_string pointer, used to set header_field_info.strings */
84 #define VALS64(x) (const struct _val64_string*)(x)
86 /** Make a const true_false_string[] look like a _true_false_string pointer, used to set header_field_info.strings */
87 #define TFS(x) (const struct true_false_string*)(x)
89 typedef void (*custom_fmt_func_t)(gchar *, guint32);
91 /** Make a const range_string[] look like a _range_string pointer, used to set
92 * header_field_info.strings */
93 #define RVALS(x) (const struct _range_string*)(x)
97 /** Structure for information about a protocol */
98 typedef struct _protocol protocol_t;
100 /** Function used for reporting errors in dissectors; it throws a
101 * DissectorError exception, with the string passed as an argument
102 * as the message for the exception, so that it can show up in
103 * the Info column and the protocol tree.
105 * If that string is dynamically allocated, it should be allocated with
106 * ep_alloc(); using ep_strdup_printf() would work.
108 * If the WIRESHARK_ABORT_ON_DISSECTOR_BUG environment variable is set,
109 * it will call abort(), instead, to make it easier to get a stack trace.
111 * @param message string to use as the message
113 WS_DLL_PUBLIC WS_MSVC_NORETURN void proto_report_dissector_bug(const char *message) G_GNUC_NORETURN;
115 #define REPORT_DISSECTOR_BUG(message) \
116 proto_report_dissector_bug(message)
118 /** Macro used to provide a hint to static analysis tools.
119 * (Currently only Visual C++.)
122 /* XXX - Is there a way to say "quit checking at this point"? */
123 #define __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression) \
124 ; __analysis_assume(expression);
126 #define __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)
129 /** Macro used for assertions in dissectors; it doesn't abort, it just
130 * throws a DissectorError exception, with the assertion failure
131 * message as a parameter, so that it can show up in the protocol tree.
133 * NOTE: this should only be used to detect bugs in the dissector (e.g., logic
134 * conditions that shouldn't happen). It should NOT be used for showing
135 * that a packet is malformed. For that, use expert_infos instead.
137 * @param expression expression to test in the assertion
140 #define DISSECTOR_ASSERT(expression) \
141 ((void) ((expression) ? (void)0 : \
142 __DISSECTOR_ASSERT (expression, __FILE__, __LINE__))) \
143 __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)
146 * Same as DISSECTOR_ASSERT(), but takes an extra 'hint' parameter that
147 * can be used to provide information as to why the assertion might fail.
149 * @param expression expression to test in the assertion
150 * @param hint message providing extra information
152 #define DISSECTOR_ASSERT_HINT(expression, hint) \
153 ((void) ((expression) ? (void)0 : \
154 __DISSECTOR_ASSERT_HINT (expression, __FILE__, __LINE__, hint))) \
155 __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)
158 /* win32: using a debug breakpoint (int 3) can be very handy while debugging,
159 * as the assert handling of GTK/GLib is currently not very helpful */
160 #define DISSECTOR_ASSERT(expression) \
161 { if(!(expression)) _asm { int 3}; }
164 /** Same as DISSECTOR_ASSERT(), but will throw DissectorError exception
165 * unconditionally, much like GLIB's g_assert_not_reached works.
167 * NOTE: this should only be used to detect bugs in the dissector (e.g., logic
168 * conditions that shouldn't happen). It should NOT be used for showing
169 * that a packet is malformed. For that, use expert_infos instead.
172 #define DISSECTOR_ASSERT_NOT_REACHED() \
173 (REPORT_DISSECTOR_BUG( \
174 ep_strdup_printf("%s:%u: failed assertion \"DISSECTOR_ASSERT_NOT_REACHED\"", \
175 __FILE__, __LINE__)))
177 #define __DISSECTOR_ASSERT_STRINGIFY(s) # s
179 #define __DISSECTOR_ASSERT(expression, file, lineno) \
180 (REPORT_DISSECTOR_BUG( \
181 ep_strdup_printf("%s:%u: failed assertion \"%s\"", \
182 file, lineno, __DISSECTOR_ASSERT_STRINGIFY(expression))))
184 #define __DISSECTOR_ASSERT_HINT(expression, file, lineno, hint) \
185 (REPORT_DISSECTOR_BUG( \
186 ep_strdup_printf("%s:%u: failed assertion \"%s\" (%s)", \
187 file, lineno, __DISSECTOR_ASSERT_STRINGIFY(expression), hint)))
190 * The encoding of a field of a particular type may involve more
191 * than just whether it's big-endian or little-endian and its size.
193 * For integral values, that's it, as 99.9999999999999% of the machines
194 * out there are 2's complement binary machines with 8-bit bytes,
195 * so the protocols out there expect that and, for example, any Unisys
196 * 2200 series machines out there just have to translate between 2's
197 * complement and 1's complement (and nobody's put any IBM 709x's on
198 * any networks lately :-)).
202 * for floating-point numbers, in addition to IEEE decimal
203 * floating-point, there's also IBM System/3x0 and PDP-11/VAX
204 * floating-point - most protocols use IEEE binary, but DCE RPC
205 * can use other formats if that's what the sending host uses;
207 * for character strings, there are various character encodings
208 * (various ISO 646 sets, ISO 8859/x, various other national
209 * standards, various DOS and Windows encodings, various Mac
210 * encodings, UTF-8, UTF-16, other extensions to ASCII, EBCDIC,
213 * for absolute times, there's UNIX time_t, UNIX time_t followed
214 * by 32-bit microseconds, UNIX time_t followed by 32-bit
215 * nanoseconds, DOS date/time, Windows FILETIME, NTP time, etc..
217 * We might also, in the future, want to allow a field specifier to
218 * indicate the encoding of the field, or at least its default
219 * encoding, as most fields in most protocols always use the
220 * same encoding (although that's not true of all fields, so we
221 * still need to be able to specify that at run time).
223 * So, for now, we define ENC_BIG_ENDIAN and ENC_LITTLE_ENDIAN as
224 * bit flags, to be combined, in the future, with other information
225 * to specify the encoding in the last argument to
226 * proto_tree_add_item(), and possibly to specify in a field
227 * definition (e.g., ORed in with the type value).
229 * Currently, proto_tree_add_item() treats its last argument as a
230 * Boolean - if it's zero, the field is big-endian, and if it's non-zero,
231 * the field is little-endian - and other code in epan/proto.c does
232 * the same. We therefore define ENC_BIG_ENDIAN as 0x00000000 and
233 * ENC_LITTLE_ENDIAN as 0x80000000 - we're using the high-order bit
234 * so that we could put a field type and/or a value such as a character
235 * encoding in the lower bits.
237 #define ENC_BIG_ENDIAN 0x00000000
238 #define ENC_LITTLE_ENDIAN 0x80000000
240 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
241 #define ENC_HOST_ENDIAN ENC_LITTLE_ENDIAN
243 #define ENC_HOST_ENDIAN ENC_BIG_ENDIAN
248 * Historically FT_TIMEs were only timespecs; the only question was whether
249 * they were stored in big- or little-endian format.
251 * For backwards compatibility, we interpret an encoding of 1 as meaning
252 * "little-endian timespec", so that passing TRUE is interpreted as that.
254 #define ENC_TIME_TIMESPEC 0x00000000 /* "struct timespec" */
255 #define ENC_TIME_NTP 0x00000002 /* NTP times */
256 #define ENC_TIME_TOD 0x00000004 /* System/3xx and z/Architecture time-of-day clock */
259 * Historically, the only place the representation mattered for strings
260 * was with FT_UINT_STRINGs, where we had FALSE for the string length
261 * being big-endian and TRUE for it being little-endian.
263 * We now have encoding values for the character encoding. The encoding
264 * values are encoded in all but the top bit (which is the byte-order
265 * bit, required for FT_UINT_STRING and for UCS-2 and UTF-16 strings)
266 * and the bottom bit (which we ignore for now so that programs that
267 * pass TRUE for the encoding just do ASCII). (The encodings are given
268 * directly as even numbers in hex, so that make-init-lua.pl can just
269 * turn them into numbers for use in init.lua.)
271 * We don't yet process ASCII and UTF-8 differently. Ultimately, for
272 * ASCII, all bytes with the 8th bit set should be mapped to some "this
273 * is not a valid character" code point, as ENC_ASCII should mean "this
274 * is ASCII, not some extended variant thereof". We should also map
275 * 0x00 to that as well - null-terminated and null-padded strings
276 * never have NULs in them, but counted strings might. (Either that,
277 * or the values for strings should be counted, not null-terminated.)
278 * For UTF-8, invalid UTF-8 sequences should be mapped to the same
281 * For display, perhaps we should also map control characters to the
282 * Unicode glyphs showing the name of the control character in small
283 * caps, diagonally. (Unfortunately, those only exist for C0, not C1.)
285 #define ENC_CHARENCODING_MASK 0x7FFFFFFE /* mask out byte-order bits */
286 #define ENC_ASCII 0x00000000
287 #define ENC_UTF_8 0x00000002
288 #define ENC_UTF_16 0x00000004
289 #define ENC_UCS_2 0x00000006
290 #define ENC_UCS_4 0x00000008
291 #define ENC_ISO_8859_1 0x0000000A
292 #define ENC_ISO_8859_2 0x0000000C
293 #define ENC_ISO_8859_3 0x0000000E
294 #define ENC_ISO_8859_4 0x00000010
295 #define ENC_ISO_8859_5 0x00000012
296 #define ENC_ISO_8859_6 0x00000014
297 #define ENC_ISO_8859_7 0x00000016
298 #define ENC_ISO_8859_8 0x00000018
299 #define ENC_ISO_8859_9 0x0000001A
300 #define ENC_ISO_8859_10 0x0000001C
301 #define ENC_ISO_8859_11 0x0000001E
302 /* #define ENC_ISO_8859_12 0x00000020 ISO 8859-12 was abandoned */
303 #define ENC_ISO_8859_13 0x00000022
304 #define ENC_ISO_8859_14 0x00000024
305 #define ENC_ISO_8859_15 0x00000026
306 #define ENC_ISO_8859_16 0x00000028
307 #define ENC_WINDOWS_1250 0x0000002A
308 #define ENC_3GPP_TS_23_038_7BITS 0x0000002C
309 #define ENC_EBCDIC 0x0000002E
314 * These could probably be used by existing code:
318 * 7-bit encodings such as 7 bits ASCII used in packet-ansi_637.c
320 * As those are added, change code such as the code in packet-bacapp.c
325 * For protocols (FT_PROTOCOL), aggregate items with subtrees (FT_NONE),
326 * opaque byte-array fields (FT_BYTES), and other fields where there
327 * is no choice of encoding (either because it's "just a bucket
328 * of bytes" or because the encoding is completely fixed), we
329 * have ENC_NA (for "Not Applicable").
331 #define ENC_NA 0x00000000
333 /* Values for header_field_info.display */
335 /* For integral types, the display format is a BASE_* field_display_e value
336 * possibly ORed with BASE_*_STRING */
338 /** FIELD_DISPLAY_E_MASK selects the field_display_e value. Its current
339 * value means that we may have at most 16 field_display_e values. */
340 #define FIELD_DISPLAY_E_MASK 0x0F
344 BASE_NONE = 0, /**< none */
345 BASE_DEC = 1, /**< decimal */
346 BASE_HEX = 2, /**< hexadecimal */
347 BASE_OCT = 3, /**< octal */
348 BASE_DEC_HEX = 4, /**< decimal (hexadecimal) */
349 BASE_HEX_DEC = 5, /**< hexadecimal (decimal) */
350 BASE_CUSTOM = 6, /**< call custom routine (in ->strings) to format */
353 STR_ASCII = BASE_NONE, /**< shows non-printable ASCII characters as C-style escapes */
354 /* XXX, support for format_text_wsp() ? */
355 STR_UNICODE = 7 /**< shows non-printable UNICODE characters as \uXXXX (XXX for now non-printable characters display depends on UI) */
358 /* Following constants have to be ORed with a field_display_e when dissector
359 * want to use specials value-string MACROs for a header_field_info */
360 #define BASE_RANGE_STRING 0x10
361 #define BASE_EXT_STRING 0x20
362 #define BASE_VAL64_STRING 0x40
364 /** BASE_ values that cause the field value to be displayed twice */
365 #define IS_BASE_DUAL(b) ((b)==BASE_DEC_HEX||(b)==BASE_HEX_DEC)
367 /* For FT_ABSOLUTE_TIME, the display format is an absolute_time_display_e
368 * as per time_fmt.h. */
371 HF_REF_TYPE_NONE, /**< Field is not referenced */
372 HF_REF_TYPE_INDIRECT, /**< Field is indirectly referenced (only applicable for FT_PROTOCOL) via. its child */
373 HF_REF_TYPE_DIRECT /**< Field is directly referenced */
376 /** information describing a header field */
377 typedef struct _header_field_info header_field_info;
379 /** information describing a header field */
380 struct _header_field_info {
381 /* ---------- set by dissector --------- */
382 const char *name; /**< [FIELDNAME] full name of this field */
383 const char *abbrev; /**< [FIELDABBREV] abbreviated name of this field */
384 enum ftenum type; /**< [FIELDTYPE] field type, one of FT_ (from ftypes.h) */
385 int display; /**< [FIELDDISPLAY] one of BASE_, or field bit-width if FT_BOOLEAN and non-zero bitmask */
386 const void *strings; /**< [FIELDCONVERT] value_string, val64_string, range_string or true_false_string,
387 typically converted by VALS(), RVALS() or TFS().
388 If this is an FT_PROTOCOL then it points to the
389 associated protocol_t structure */
390 guint32 bitmask; /**< [BITMASK] bitmask of interesting bits */
391 const char *blurb; /**< [FIELDDESCR] Brief description of field */
393 /* ------- set by proto routines (prefilled by HFILL macro, see below) ------ */
394 int id; /**< Field ID */
395 int parent; /**< parent protocol tree */
396 hf_ref_type ref_type; /**< is this field referenced by a filter */
397 int same_name_prev_id; /**< ID of previous hfinfo with same abbrev */
398 header_field_info *same_name_next; /**< Link to next hfinfo with same abbrev */
402 * HFILL initializes all the "set by proto routines" fields in a
403 * _header_field_info. If new fields are added or removed, it should
404 * be changed as necessary.
406 #define HFILL -1, 0, HF_REF_TYPE_NONE, -1, NULL
408 #define HFILL_INIT(hf) \
410 hf.hfinfo.parent = 0; \
411 hf.hfinfo.ref_type = HF_REF_TYPE_NONE; \
412 hf.hfinfo.same_name_prev_id = -1; \
413 hf.hfinfo.same_name_next = NULL;
415 /** Used when registering many fields at once, using proto_register_field_array() */
416 typedef struct hf_register_info {
417 int *p_id; /**< written to by register() function */
418 header_field_info hfinfo; /**< the field info to be registered */
424 /** string representation, if one of the proto_tree_add_..._format() functions used */
425 typedef struct _item_label_t {
426 char representation[ITEM_LABEL_LENGTH];
430 /** Contains the field information for the proto_item. */
431 typedef struct field_info {
432 header_field_info *hfinfo; /**< pointer to registered field information */
433 gint start; /**< current start of data in field_info.ds_tvb */
434 gint length; /**< current data length of item in field_info.ds_tvb */
435 gint appendix_start; /**< start of appendix data */
436 gint appendix_length; /**< length of appendix data */
437 gint tree_type; /**< one of ETT_ or -1 */
438 guint32 flags; /**< bitfield like FI_GENERATED, ... */
439 item_label_t *rep; /**< string for GUI tree */
440 tvbuff_t *ds_tvb; /**< data source tvbuff */
446 * This structure describes one segment of a split-bits item
447 * crumb_bit_offset is the bit offset in the input tvb of the first (most significant) bit of this crumb
448 * crumb_bit_length is the number of contiguous bits of this crumb.
449 * The first element of an array of bits_specs describes the most significant crumb of the output value.
450 * The second element of an array of bits_specs describes the next-most significant crumb of the output value, etc.
451 * The array is terminated by a sentinal entry with crumb_bit_length of 0.
455 guint crumb_bit_offset;
456 guint8 crumb_bit_length;
460 * Flag fields. Do not assign values greater than 0x00000080 unless you
461 * shuffle the expert information upward; see below.
464 /** The protocol field should not be shown in the tree (it's used for filtering only),
465 * used in field_info.flags. */
466 /** HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN!
467 A user cannot tell by looking at the packet detail that the field exists
468 and that they can filter on its value. */
469 #define FI_HIDDEN 0x00000001
470 /** The protocol field should be displayed as "generated by Wireshark",
471 * used in field_info.flags. */
472 #define FI_GENERATED 0x00000002
473 /** The protocol field is actually a URL */
474 #define FI_URL 0x00000004
476 /** The protocol field value is in little endian */
477 #define FI_LITTLE_ENDIAN 0x00000008
478 /** The protocol field value is in big endian */
479 #define FI_BIG_ENDIAN 0x00000010
480 /** Field value start from nth bit (values from 0x20 - 0x100) */
481 #define FI_BITS_OFFSET(n) (((n) & 7) << 5)
482 /** Field value takes n bits (values from 0x100 - 0x4000) */
483 /* if 0, it means that field takes fi->length * 8 */
484 #define FI_BITS_SIZE(n) (((n) & 63) << 8)
486 /** convenience macro to get field_info.flags */
487 #define FI_GET_FLAG(fi, flag) ((fi) ? ((fi)->flags & (flag)) : 0)
488 /** convenience macro to set field_info.flags */
489 #define FI_SET_FLAG(fi, flag) \
492 (fi)->flags = (fi)->flags | (flag); \
494 /** convenience macro to reset field_info.flags */
495 #define FI_RESET_FLAG(fi, flag) \
498 (fi)->flags = (fi)->flags & ~(flag); \
501 #define FI_GET_BITS_OFFSET(fi) (FI_GET_FLAG(fi, FI_BITS_OFFSET(7)) >> 5)
502 #define FI_GET_BITS_SIZE(fi) (FI_GET_FLAG(fi, FI_BITS_SIZE(63)) >> 8)
504 /** One of these exists for the entire protocol tree. Each proto_node
505 * in the protocol tree points to the same copy. */
507 GHashTable *interesting_hfids;
509 gboolean fake_protocols;
511 struct _packet_info *pinfo;
514 /** Each proto_tree, proto_item is one of these. */
515 typedef struct _proto_node {
516 struct _proto_node *first_child;
517 struct _proto_node *last_child;
518 struct _proto_node *next;
519 struct _proto_node *parent;
521 tree_data_t *tree_data;
524 /** A protocol tree element. */
525 typedef proto_node proto_tree;
526 /** A protocol item element. */
527 typedef proto_node proto_item;
530 * Expert information.
531 * This is in the flags field; we allocate this from the top down,
532 * so as not to collide with FI_ flags, which are allocated from
536 /* expert severities */
537 #define PI_SEVERITY_MASK 0x00F00000 /**< mask usually for internal use only! */
538 /** Packet is commented */
539 #define PI_COMMENT 0x00100000
540 /** Usual workflow, e.g. TCP connection establishing */
541 #define PI_CHAT 0x00200000
542 /** Notable messages, e.g. an application returned an "usual" error code like HTTP 404 */
543 #define PI_NOTE 0x00400000
544 /** Warning, e.g. application returned an "unusual" error code */
545 #define PI_WARN 0x00600000
546 /** Serious problems, e.g. [Malformed Packet] */
547 #define PI_ERROR 0x00800000
549 /* expert "event groups" */
550 #define PI_GROUP_MASK 0xFF000000 /**< mask usually for internal use only! */
551 /** The protocol field has a bad checksum, usually PI_WARN */
552 #define PI_CHECKSUM 0x01000000
553 /** The protocol field indicates a sequence problem (e.g. TCP window is zero) */
554 #define PI_SEQUENCE 0x02000000
555 /** The protocol field indicates a bad application response code (e.g. HTTP 404), usually PI_NOTE */
556 #define PI_RESPONSE_CODE 0x03000000
557 /** The protocol field indicates an application request (e.g. File Handle == xxxx), usually PI_CHAT */
558 #define PI_REQUEST_CODE 0x04000000
559 /** The data is undecoded, the protocol dissection is incomplete here, usually PI_WARN */
560 #define PI_UNDECODED 0x05000000
561 /** The protocol field indicates a reassemble (e.g. DCE/RPC defragmentation), usually PI_CHAT (or PI_ERROR) */
562 #define PI_REASSEMBLE 0x06000000
563 /** The packet data is malformed, the dissector has "given up", usually PI_ERROR */
564 #define PI_MALFORMED 0x07000000
565 /** A generic debugging message (shouldn't remain in production code!), usually PI_ERROR */
566 #define PI_DEBUG 0x08000000
567 /** The protocol field violates a protocol specification, usually PI_WARN */
568 #define PI_PROTOCOL 0x09000000
569 /** The protocol field indicates a security probem (e.g. unsecure implementation) */
570 #define PI_SECURITY 0x0a000000
571 /** The protocol field indicates a packet comment */
572 #define PI_COMMENTS_GROUP 0x0b000000
574 /* add more, see http://wiki.wireshark.org/Development/ExpertInfo */
577 /** is this protocol field hidden from the protocol tree display (used for filtering only)? */
578 /* HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN! */
579 #define PROTO_ITEM_IS_HIDDEN(proto_item) \
580 ((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN) : 0)
581 /** mark this protocol field to be hidden from the protocol tree display (used for filtering only) */
582 /* HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN! */
583 #define PROTO_ITEM_SET_HIDDEN(proto_item) \
586 FI_SET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN); \
588 /** mark this protocol field to be visible from the protocol tree display */
589 #define PROTO_ITEM_SET_VISIBLE(proto_item) \
592 FI_RESET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN); \
595 /** is this protocol field generated by Wireshark (and not read from the packet data)? */
596 #define PROTO_ITEM_IS_GENERATED(proto_item) \
597 ((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_GENERATED) : 0)
598 /** mark this protocol field as generated by Wireshark (and not read from the packet data) */
599 #define PROTO_ITEM_SET_GENERATED(proto_item) \
602 FI_SET_FLAG(PITEM_FINFO(proto_item), FI_GENERATED); \
604 /** is this protocol field actually a URL? */
605 #define PROTO_ITEM_IS_URL(proto_item) \
606 ((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_URL) : 0)
607 /** mark this protocol field as a URL */
608 #define PROTO_ITEM_SET_URL(proto_item) \
611 FI_SET_FLAG(PITEM_FINFO(proto_item), FI_URL); \
614 typedef void (*proto_tree_foreach_func)(proto_node *, gpointer);
615 typedef gboolean (*proto_tree_traverse_func)(proto_node *, gpointer);
617 extern gboolean proto_tree_traverse_post_order(proto_tree *tree,
618 proto_tree_traverse_func func, gpointer data);
620 WS_DLL_PUBLIC void proto_tree_children_foreach(proto_tree *tree,
621 proto_tree_foreach_func func, gpointer data);
623 /** Retrieve the field_info from a proto_node */
624 #define PNODE_FINFO(proto_node) ((proto_node)->finfo)
626 /** Retrieve the field_info from a proto_item */
627 #define PITEM_FINFO(proto_item) PNODE_FINFO(proto_item)
629 /** Retrieve the field_info from a proto_tree */
630 #define PTREE_FINFO(proto_tree) PNODE_FINFO(proto_tree)
632 /** Retrieve the tree_data_t from a proto_tree */
633 #define PTREE_DATA(proto_tree) ((proto_tree)->tree_data)
635 /** Retrieve the wmem_allocator_t from a proto_node */
636 #define PNODE_POOL(proto_node) ((proto_node)->tree_data->pinfo->pool)
639 /** Register dissector plugin type with the plugin system.
640 Called by epan_register_plugin_types(); do not call it yourself. */
641 extern void register_dissector_plugin_type(void);
644 /** Sets up memory used by proto routines. Called at program startup */
645 void proto_init(void (register_all_protocols_func)(register_cb cb, gpointer client_data),
646 void (register_all_handoffs_func)(register_cb cb, gpointer client_data),
647 register_cb cb, void *client_data);
650 /** Frees memory used by proto routines. Called at program shutdown */
651 extern void proto_cleanup(void);
653 /** This function takes a tree and a protocol id as parameter and
654 will return TRUE/FALSE for whether the protocol or any of the filterable
655 fields in the protocol is referenced by any fitlers.
656 If this function returns FALSE then it is safe to skip any
657 proto_tree_add_...() calls and just treat the call as if the
658 dissector was called with tree==NULL.
659 If you reset the tree to NULL by this dissector returning FALSE,
660 you will still need to call any subdissector with the original value of
661 tree or filtering will break.
663 The purpose of this is to optimize wireshark for speed and make it
664 faster for when filters are being used.
666 WS_DLL_PUBLIC gboolean proto_field_is_referenced(proto_tree *tree, int proto_id);
668 /** Create a subtree under an existing item.
669 @param ti the parent item of the new subtree
670 @param idx one of the ett_ array elements registered with proto_register_subtree_array()
671 @return the new subtree */
672 WS_DLL_PUBLIC proto_tree* proto_item_add_subtree(proto_item *ti, const gint idx) G_GNUC_WARN_UNUSED_RESULT;
674 /** Get an existing subtree under an item.
675 @param ti the parent item of the subtree
676 @return the subtree or NULL */
677 WS_DLL_PUBLIC proto_tree* proto_item_get_subtree(proto_item *ti);
679 /** Get the parent of a subtree item.
680 @param ti the child item in the subtree
681 @return parent item or NULL */
682 WS_DLL_PUBLIC proto_item* proto_item_get_parent(const proto_item *ti);
684 /** Get Nth generation parent item.
685 @param ti the child item in the subtree
686 @param gen the generation to get (using 1 here is the same as using proto_item_get_parent())
687 @return parent item */
688 WS_DLL_PUBLIC proto_item* proto_item_get_parent_nth(proto_item *ti, int gen);
690 /** Replace text of item after it already has been created.
691 @param ti the item to set the text
692 @param format printf like format string
693 @param ... printf like parameters */
694 WS_DLL_PUBLIC void proto_item_set_text(proto_item *ti, const char *format, ...)
697 /** Append to text of item after it has already been created.
698 @param ti the item to append the text to
699 @param format printf like format string
700 @param ... printf like parameters */
701 WS_DLL_PUBLIC void proto_item_append_text(proto_item *ti, const char *format, ...)
704 /** Prepend to text of item after it has already been created.
705 @param ti the item to prepend the text to
706 @param format printf like format string
707 @param ... printf like parameters */
708 WS_DLL_PUBLIC void proto_item_prepend_text(proto_item *ti, const char *format, ...)
711 /** Set proto_item's length inside tvb, after it has already been created.
712 @param ti the item to set the length
713 @param length the new length ot the item */
714 WS_DLL_PUBLIC void proto_item_set_len(proto_item *ti, const gint length);
717 * Sets the length of the item based on its start and on the specified
718 * offset, which is the offset past the end of the item; as the start
719 * in the item is relative to the beginning of the data source tvbuff,
720 * we need to pass in a tvbuff.
721 @param ti the item to set the length
722 @param tvb end is relative to this tvbuff
723 @param end this end offset is relative to the beginning of tvb
724 @todo make usage clearer, I don't understand it!
726 WS_DLL_PUBLIC void proto_item_set_end(proto_item *ti, tvbuff_t *tvb, gint end);
728 /** Get length of a proto_item. Useful after using proto_tree_add_item()
729 * to add a variable-length field (e.g., FT_NSTRING_UINT8).
730 @param ti the item to get the length from
731 @return the current length */
732 WS_DLL_PUBLIC int proto_item_get_len(const proto_item *ti);
736 /** Creates a new proto_tree root.
737 @return the new tree root */
738 extern proto_tree* proto_tree_create_root(struct _packet_info *pinfo);
740 void proto_tree_reset(proto_tree *tree);
742 /** Clear memory for entry proto_tree. Clears proto_tree struct also.
743 @param tree the tree to free */
744 WS_DLL_PUBLIC void proto_tree_free(proto_tree *tree);
746 /** Set the tree visible or invisible.
747 Is the parsing being done for a visible proto_tree or an invisible one?
748 By setting this correctly, the proto_tree creation is sped up by not
749 having to call g_vsnprintf and copy strings around.
750 @param tree the tree to be set
751 @param visible ... or not
752 @return the old value */
753 WS_DLL_PUBLIC gboolean
754 proto_tree_set_visible(proto_tree *tree, gboolean visible);
756 /** Indicate whether we should fake protocols during dissection (default = TRUE)
757 @param tree the tree to be set
758 @param fake_protocols TRUE if we should fake protocols */
760 proto_tree_set_fake_protocols(proto_tree *tree, gboolean fake_protocols);
762 /** Mark a field/protocol ID as "interesting".
763 @param tree the tree to be set
764 @param hfid the interesting field id
765 @todo what *does* interesting mean? */
767 proto_tree_prime_hfid(proto_tree *tree, const int hfid);
769 /** Get a parent item of a subtree.
770 @param tree the tree to get the parent from
771 @return parent item */
772 WS_DLL_PUBLIC proto_item* proto_tree_get_parent(proto_tree *tree);
774 /** Get the root tree from any subtree.
775 @param tree the tree to get the root from
777 WS_DLL_PUBLIC proto_tree* proto_tree_get_root(proto_tree *tree);
779 /** Move an existing item behind another existing item.
780 @param tree the tree to which both items belong
781 @param fixed_item the item which keeps its position
782 @param item_to_move the item which will be moved */
783 WS_DLL_PUBLIC void proto_tree_move_item(proto_tree *tree, proto_item *fixed_item, proto_item *item_to_move);
786 /** Set start and length of an appendix for a proto_tree.
787 @param tree the tree to set the appendix start and length
788 @param tvb the tv buffer of the current data
789 @param start the start offset of the appendix
790 @param length the length of the appendix */
791 WS_DLL_PUBLIC void proto_tree_set_appendix(proto_tree *tree, tvbuff_t *tvb, gint start, const gint length);
794 /** Add an item to a proto_tree, using the text label registered to that item.
795 The item is extracted from the tvbuff handed to it.
796 @param tree the tree to append this item to
798 @param tvb the tv buffer of the current data
799 @param start start of data in tvb
800 @param length length of data in tvb
801 @param encoding data encoding
802 @return the newly created item */
803 WS_DLL_PUBLIC proto_item *
804 proto_tree_add_item_new(proto_tree *tree, header_field_info *hfinfo, tvbuff_t *tvb,
805 const gint start, gint length, const guint encoding);
807 WS_DLL_PUBLIC proto_item *
808 proto_tree_add_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
809 const gint start, gint length, const guint encoding);
811 /** Add a text-only node to a proto_tree.
812 @param tree the tree to append this item to
813 @param tvb the tv buffer of the current data
814 @param start start of data in tvb
815 @param length length of data in tvb
816 @param format printf like format string
817 @param ... printf like parameters
818 @return the newly created item */
819 WS_DLL_PUBLIC proto_item *
820 proto_tree_add_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, const char *format,
821 ...) G_GNUC_PRINTF(5,6);
823 /** Add a text-only node to a proto_tree using a variable argument list.
824 @param tree the tree to append this item to
825 @param tvb the tv buffer of the current data
826 @param start start of data in tvb
827 @param length length of data in tvb
828 @param format printf like format string
829 @param ap variable argument list
830 @return the newly created item */
832 proto_tree_add_text_valist(proto_tree *tree, tvbuff_t *tvb, gint start,
833 gint length, const char *format, va_list ap);
836 /** Add a FT_NONE field to a proto_tree.
837 @param tree the tree to append this item to
838 @param hfindex field index
839 @param tvb the tv buffer of the current data
840 @param start start of data in tvb
841 @param length length of data in tvb
842 @param format printf like format string
843 @param ... printf like parameters
844 @return the newly created item */
845 WS_DLL_PUBLIC proto_item *
846 proto_tree_add_none_format(proto_tree *tree, const int hfindex, tvbuff_t *tvb, const gint start,
847 gint length, const char *format, ...) G_GNUC_PRINTF(6,7);
849 /** Add a FT_PROTOCOL to a proto_tree.
850 @param tree the tree to append this item to
851 @param hfindex field index
852 @param tvb the tv buffer of the current data
853 @param start start of data in tvb
854 @param length length of data in tvb
855 @param format printf like format string
856 @param ... printf like parameters
857 @return the newly created item */
858 WS_DLL_PUBLIC proto_item *
859 proto_tree_add_protocol_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
860 gint length, const char *format, ...) G_GNUC_PRINTF(6,7);
865 /** Add a FT_BYTES to a proto_tree.
866 @param tree the tree to append this item to
867 @param hfindex field index
868 @param tvb the tv buffer of the current data
869 @param start start of data in tvb
870 @param length length of data in tvb
871 @param start_ptr pointer to the data to display
872 @return the newly created item */
873 WS_DLL_PUBLIC proto_item *
874 proto_tree_add_bytes(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
875 gint length, const guint8* start_ptr);
877 /** Add a formatted FT_BYTES to a proto_tree, with the format generating
878 the string for the value and with the field name being included
880 @param tree the tree to append this item to
881 @param hfindex field index
882 @param tvb the tv buffer of the current data
883 @param start start of data in tvb
884 @param length length of data in tvb
885 @param start_ptr pointer to the data to display
886 @param format printf like format string
887 @param ... printf like parameters
888 @return the newly created item */
889 WS_DLL_PUBLIC proto_item *
890 proto_tree_add_bytes_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
891 gint start, gint length, const guint8* start_ptr, const char *format,
892 ...) G_GNUC_PRINTF(7,8);
894 /** Add a formatted FT_BYTES to a proto_tree, with the format generating
895 the entire string for the entry, including any field name.
896 @param tree the tree to append this item to
897 @param hfindex field index
898 @param tvb the tv buffer of the current data
899 @param start start of data in tvb
900 @param length length of data in tvb
901 @param start_ptr pointer to the data to display
902 @param format printf like format string
903 @param ... printf like parameters
904 @return the newly created item */
905 WS_DLL_PUBLIC proto_item *
906 proto_tree_add_bytes_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
907 gint length, const guint8* start_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);
909 /** Add a FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree.
910 @param tree the tree to append this item to
911 @param hfindex field index
912 @param tvb the tv buffer of the current data
913 @param start start of data in tvb
914 @param length length of data in tvb
915 @param value_ptr pointer to the data to display
916 @return the newly created item */
917 WS_DLL_PUBLIC proto_item *
918 proto_tree_add_time(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
919 gint length, const nstime_t* value_ptr);
921 /** Add a formatted FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree, with
922 the format generating the string for the value and with the field name
923 being included automatically.
924 @param tree the tree to append this item to
925 @param hfindex field index
926 @param tvb the tv buffer of the current data
927 @param start start of data in tvb
928 @param length length of data in tvb
929 @param value_ptr pointer to the data to display
930 @param format printf like format string
931 @param ... printf like parameters
932 @return the newly created item */
933 WS_DLL_PUBLIC proto_item *
934 proto_tree_add_time_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
935 gint start, gint length, nstime_t* value_ptr, const char *format, ...)
938 /** Add a formatted FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree, with
939 the format generating the entire string for the entry, including any field
941 @param tree the tree to append this item to
942 @param hfindex field index
943 @param tvb the tv buffer of the current data
944 @param start start of data in tvb
945 @param length length of data in tvb
946 @param value_ptr pointer to the data to display
947 @param format printf like format string
948 @param ... printf like parameters
949 @return the newly created item */
950 WS_DLL_PUBLIC proto_item *
951 proto_tree_add_time_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
952 gint length, nstime_t* value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);
954 /** Add a FT_IPXNET to a proto_tree.
955 @param tree the tree to append this item to
956 @param hfindex field index
957 @param tvb the tv buffer of the current data
958 @param start start of data in tvb
959 @param length length of data in tvb
960 @param value data to display
961 @return the newly created item */
962 WS_DLL_PUBLIC proto_item *
963 proto_tree_add_ipxnet(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
964 gint length, guint32 value);
966 /** Add a formatted FT_IPXNET to a proto_tree, with the format generating
967 the string for the value and with the field name being included
969 @param tree the tree to append this item to
970 @param hfindex field index
971 @param tvb the tv buffer of the current data
972 @param start start of data in tvb
973 @param length length of data in tvb
974 @param value data to display
975 @param format printf like format string
976 @param ... printf like parameters
977 @return the newly created item */
978 WS_DLL_PUBLIC proto_item *
979 proto_tree_add_ipxnet_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
980 gint start, gint length, guint32 value, const char *format, ...)
983 /** Add a formatted FT_IPXNET to a proto_tree, with the format generating
984 the entire string for the entry, including any field name.
985 @param tree the tree to append this item to
986 @param hfindex field index
987 @param tvb the tv buffer of the current data
988 @param start start of data in tvb
989 @param length length of data in tvb
990 @param value data to display
991 @param format printf like format string
992 @param ... printf like parameters
993 @return the newly created item */
994 WS_DLL_PUBLIC proto_item *
995 proto_tree_add_ipxnet_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
996 gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
998 /** Add a FT_IPv4 to a proto_tree.
999 @param tree the tree to append this item to
1000 @param hfindex field index
1001 @param tvb the tv buffer of the current data
1002 @param start start of data in tvb
1003 @param length length of data in tvb
1004 @param value data to display
1005 @return the newly created item */
1006 WS_DLL_PUBLIC proto_item *
1007 proto_tree_add_ipv4(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1008 gint length, guint32 value);
1010 /** Add a formatted FT_IPv4 to a proto_tree, with the format generating
1011 the string for the value and with the field name being included
1013 @param tree the tree to append this item to
1014 @param hfindex field index
1015 @param tvb the tv buffer of the current data
1016 @param start start of data in tvb
1017 @param length length of data in tvb
1018 @param value data to display
1019 @param format printf like format string
1020 @param ... printf like parameters
1021 @return the newly created item */
1022 WS_DLL_PUBLIC proto_item *
1023 proto_tree_add_ipv4_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1024 gint start, gint length, guint32 value, const char *format, ...)
1027 /** Add a formatted FT_IPv4 to a proto_tree, with the format generating
1028 the entire string for the entry, including any field name.
1029 @param tree the tree to append this item to
1030 @param hfindex field index
1031 @param tvb the tv buffer of the current data
1032 @param start start of data in tvb
1033 @param length length of data in tvb
1034 @param value data to display
1035 @param format printf like format string
1036 @param ... printf like parameters
1037 @return the newly created item */
1038 WS_DLL_PUBLIC proto_item *
1039 proto_tree_add_ipv4_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1040 gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1042 /** Add a FT_IPv6 to a proto_tree.
1043 @param tree the tree to append this item to
1044 @param hfindex field index
1045 @param tvb the tv buffer of the current data
1046 @param start start of data in tvb
1047 @param length length of data in tvb
1048 @param value_ptr data to display
1049 @return the newly created item */
1050 WS_DLL_PUBLIC proto_item *
1051 proto_tree_add_ipv6(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1052 gint length, const guint8* value_ptr);
1054 /** Add a formatted FT_IPv6 to a proto_tree, with the format generating
1055 the string for the value and with the field name being included
1057 @param tree the tree to append this item to
1058 @param hfindex field index
1059 @param tvb the tv buffer of the current data
1060 @param start start of data in tvb
1061 @param length length of data in tvb
1062 @param value_ptr data to display
1063 @param format printf like format string
1064 @param ... printf like parameters
1065 @return the newly created item */
1066 WS_DLL_PUBLIC proto_item *
1067 proto_tree_add_ipv6_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1068 gint start, gint length, const guint8* value_ptr, const char *format,
1069 ...) G_GNUC_PRINTF(7,8);
1071 /** Add a formatted FT_IPv6 to a proto_tree, with the format generating
1072 the entire string for the entry, including any field name.
1073 @param tree the tree to append this item to
1074 @param hfindex field index
1075 @param tvb the tv buffer of the current data
1076 @param start start of data in tvb
1077 @param length length of data in tvb
1078 @param value_ptr data to display
1079 @param format printf like format string
1080 @param ... printf like parameters
1081 @return the newly created item */
1082 WS_DLL_PUBLIC proto_item *
1083 proto_tree_add_ipv6_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1084 gint length, const guint8* value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);
1086 /** Add a FT_AX25 to a proto_tree.
1087 @param tree the tree to append this item to
1088 @param hfindex field index
1089 @param tvb the tv buffer of the current data
1090 @param start start of data in tvb
1091 @param length length of data in tvb
1092 @param value data to display
1093 @return the newly created item */
1095 proto_tree_add_ax25(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1096 gint length, const guint8* value);
1098 /** Add a FT_ETHER to a proto_tree.
1099 @param tree the tree to append this item to
1100 @param hfindex field index
1101 @param tvb the tv buffer of the current data
1102 @param start start of data in tvb
1103 @param length length of data in tvb
1104 @param value data to display
1105 @return the newly created item */
1106 WS_DLL_PUBLIC proto_item *
1107 proto_tree_add_ether(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1108 gint length, const guint8* value);
1110 /** Add a formatted FT_ETHER to a proto_tree, with the format generating
1111 the string for the value and with the field name being included
1113 @param tree the tree to append this item to
1114 @param hfindex field index
1115 @param tvb the tv buffer of the current data
1116 @param start start of data in tvb
1117 @param length length of data in tvb
1118 @param value data to display
1119 @param format printf like format string
1120 @param ... printf like parameters
1121 @return the newly created item */
1122 WS_DLL_PUBLIC proto_item *
1123 proto_tree_add_ether_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1124 gint start, gint length, const guint8* value, const char *format, ...)
1127 /** Add a formatted FT_ETHER to a proto_tree, with the format generating
1128 the entire string for the entry, including any field name.
1129 @param tree the tree to append this item to
1130 @param hfindex field index
1131 @param tvb the tv buffer of the current data
1132 @param start start of data in tvb
1133 @param length length of data in tvb
1134 @param value data to display
1135 @param format printf like format string
1136 @param ... printf like parameters
1137 @return the newly created item */
1138 WS_DLL_PUBLIC proto_item *
1139 proto_tree_add_ether_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1140 gint length, const guint8* value, const char *format, ...) G_GNUC_PRINTF(7,8);
1142 /** Add a FT_GUID to a proto_tree.
1143 @param tree the tree to append this item to
1144 @param hfindex field index
1145 @param tvb the tv buffer of the current data
1146 @param start start of data in tvb
1147 @param length length of data in tvb
1148 @param value_ptr data to display
1149 @return the newly created item */
1150 WS_DLL_PUBLIC proto_item *
1151 proto_tree_add_guid(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1152 gint length, const e_guid_t *value_ptr);
1154 /** Add a formatted FT_GUID to a proto_tree, with the format generating
1155 the string for the value and with the field name being included
1157 @param tree the tree to append this item to
1158 @param hfindex field index
1159 @param tvb the tv buffer of the current data
1160 @param start start of data in tvb
1161 @param length length of data in tvb
1162 @param value_ptr data to display
1163 @param format printf like format string
1164 @param ... printf like parameters
1165 @return the newly created item */
1166 WS_DLL_PUBLIC proto_item *
1167 proto_tree_add_guid_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1168 gint start, gint length, const e_guid_t *value_ptr, const char *format,
1169 ...) G_GNUC_PRINTF(7,8);
1171 /** Add a formatted FT_GUID to a proto_tree, with the format generating
1172 the entire string for the entry, including any field name.
1173 @param tree the tree to append this item to
1174 @param hfindex field index
1175 @param tvb the tv buffer of the current data
1176 @param start start of data in tvb
1177 @param length length of data in tvb
1178 @param value_ptr data to display
1179 @param format printf like format string
1180 @param ... printf like parameters
1181 @return the newly created item */
1182 WS_DLL_PUBLIC proto_item *
1183 proto_tree_add_guid_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1184 gint length, const e_guid_t *value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);
1186 /** Add a FT_OID to a proto_tree.
1187 @param tree the tree to append this item to
1188 @param hfindex field index
1189 @param tvb the tv buffer of the current data
1190 @param start start of data in tvb
1191 @param length length of data in tvb
1192 @param value_ptr data to display
1193 @return the newly created item */
1195 proto_tree_add_oid(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1196 gint length, const guint8* value_ptr);
1198 /** Add a formatted FT_OID to a proto_tree, with the format generating
1199 the string for the value and with the field name being included
1201 @param tree the tree to append this item to
1202 @param hfindex field index
1203 @param tvb the tv buffer of the current data
1204 @param start start of data in tvb
1205 @param length length of data in tvb
1206 @param value_ptr data to display
1207 @param format printf like format string
1208 @param ... printf like parameters
1209 @return the newly created item */
1211 proto_tree_add_oid_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1212 gint start, gint length, const guint8* value_ptr, const char *format,
1213 ...) G_GNUC_PRINTF(7,8);
1215 /** Add a formatted FT_OID to a proto_tree, with the format generating
1216 the entire string for the entry, including any field name.
1217 @param tree the tree to append this item to
1218 @param hfindex field index
1219 @param tvb the tv buffer of the current data
1220 @param start start of data in tvb
1221 @param length length of data in tvb
1222 @param value_ptr data to display
1223 @param format printf like format string
1224 @param ... printf like parameters
1225 @return the newly created item */
1227 proto_tree_add_oid_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1228 gint length, const guint8* value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);
1230 /** Add a FT_STRING to a proto_tree.
1231 @param tree the tree to append this item to
1232 @param hfindex field index
1233 @param tvb the tv buffer of the current data
1234 @param start start of data in tvb
1235 @param length length of data in tvb
1236 @param value data to display
1237 @return the newly created item */
1238 WS_DLL_PUBLIC proto_item *
1239 proto_tree_add_string(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1240 gint length, const char* value);
1242 /** Add a formatted FT_STRING to a proto_tree, with the format generating
1243 the string for the value and with the field name being included
1245 @param tree the tree to append this item to
1246 @param hfindex field index
1247 @param tvb the tv buffer of the current data
1248 @param start start of data in tvb
1249 @param length length of data in tvb
1250 @param value data to display
1251 @param format printf like format string
1252 @param ... printf like parameters
1253 @return the newly created item */
1254 WS_DLL_PUBLIC proto_item *
1255 proto_tree_add_string_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1256 gint start, gint length, const char* value, const char *format, ...)
1259 /** Add a formatted FT_STRING to a proto_tree, with the format generating
1260 the entire string for the entry, including any field name.
1261 @param tree the tree to append this item to
1262 @param hfindex field index
1263 @param tvb the tv buffer of the current data
1264 @param start start of data in tvb
1265 @param length length of data in tvb
1266 @param value data to display
1267 @param format printf like format string
1268 @param ... printf like parameters
1269 @return the newly created item */
1270 WS_DLL_PUBLIC proto_item *
1271 proto_tree_add_string_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1272 gint length, const char* value, const char *format, ...) G_GNUC_PRINTF(7,8);
1274 /** Add a FT_BOOLEAN to a proto_tree.
1275 @param tree the tree to append this item to
1276 @param hfindex field index
1277 @param tvb the tv buffer of the current data
1278 @param start start of data in tvb
1279 @param length length of data in tvb
1280 @param value data to display
1281 @return the newly created item */
1282 WS_DLL_PUBLIC proto_item *
1283 proto_tree_add_boolean(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1284 gint length, guint32 value);
1286 /** Add a formatted FT_BOOLEAN to a proto_tree, with the format generating
1287 the string for the value and with the field name being included
1289 @param tree the tree to append this item to
1290 @param hfindex field index
1291 @param tvb the tv buffer of the current data
1292 @param start start of data in tvb
1293 @param length length of data in tvb
1294 @param value data to display
1295 @param format printf like format string
1296 @param ... printf like parameters
1297 @return the newly created item */
1298 WS_DLL_PUBLIC proto_item *
1299 proto_tree_add_boolean_format_value(proto_tree *tree, int hfindex,
1300 tvbuff_t *tvb, gint start, gint length, guint32 value,
1301 const char *format, ...) G_GNUC_PRINTF(7,8);
1303 /** Add a formatted FT_BOOLEAN to a proto_tree, with the format generating
1304 the entire string for the entry, including any field name.
1305 @param tree the tree to append this item to
1306 @param hfindex field index
1307 @param tvb the tv buffer of the current data
1308 @param start start of data in tvb
1309 @param length length of data in tvb
1310 @param value data to display
1311 @param format printf like format string
1312 @param ... printf like parameters
1313 @return the newly created item */
1314 WS_DLL_PUBLIC proto_item *
1315 proto_tree_add_boolean_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1316 gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1318 /** Add a FT_FLOAT to a proto_tree.
1319 @param tree the tree to append this item to
1320 @param hfindex field index
1321 @param tvb the tv buffer of the current data
1322 @param start start of data in tvb
1323 @param length length of data in tvb
1324 @param value data to display
1325 @return the newly created item */
1326 WS_DLL_PUBLIC proto_item *
1327 proto_tree_add_float(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1328 gint length, float value);
1330 /** Add a formatted FT_FLOAT to a proto_tree, with the format generating
1331 the string for the value and with the field name being included
1333 @param tree the tree to append this item to
1334 @param hfindex field index
1335 @param tvb the tv buffer of the current data
1336 @param start start of data in tvb
1337 @param length length of data in tvb
1338 @param value data to display
1339 @param format printf like format string
1340 @param ... printf like parameters
1341 @return the newly created item */
1342 WS_DLL_PUBLIC proto_item *
1343 proto_tree_add_float_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1344 gint start, gint length, float value, const char *format, ...)
1347 /** Add a formatted FT_FLOAT to a proto_tree, with the format generating
1348 the entire string for the entry, including any field name.
1349 @param tree the tree to append this item to
1350 @param hfindex field index
1351 @param tvb the tv buffer of the current data
1352 @param start start of data in tvb
1353 @param length length of data in tvb
1354 @param value data to display
1355 @param format printf like format string
1356 @param ... printf like parameters
1357 @return the newly created item */
1358 WS_DLL_PUBLIC proto_item *
1359 proto_tree_add_float_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1360 gint length, float value, const char *format, ...) G_GNUC_PRINTF(7,8);
1362 /** Add a FT_DOUBLE to a proto_tree.
1363 @param tree the tree to append this item to
1364 @param hfindex field index
1365 @param tvb the tv buffer of the current data
1366 @param start start of data in tvb
1367 @param length length of data in tvb
1368 @param value data to display
1369 @return the newly created item */
1370 WS_DLL_PUBLIC proto_item *
1371 proto_tree_add_double(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1372 gint length, double value);
1374 /** Add a formatted FT_DOUBLE to a proto_tree, with the format generating
1375 the string for the value and with the field name being included
1377 @param tree the tree to append this item to
1378 @param hfindex field index
1379 @param tvb the tv buffer of the current data
1380 @param start start of data in tvb
1381 @param length length of data in tvb
1382 @param value data to display
1383 @param format printf like format string
1384 @param ... printf like parameters
1385 @return the newly created item */
1386 WS_DLL_PUBLIC proto_item *
1387 proto_tree_add_double_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1388 gint start, gint length, double value, const char *format, ...)
1391 /** Add a formatted FT_DOUBLE to a proto_tree, with the format generating
1392 the entire string for the entry, including any field name.
1393 @param tree the tree to append this item to
1394 @param hfindex field index
1395 @param tvb the tv buffer of the current data
1396 @param start start of data in tvb
1397 @param length length of data in tvb
1398 @param value data to display
1399 @param format printf like format string
1400 @param ... printf like parameters
1401 @return the newly created item */
1402 WS_DLL_PUBLIC proto_item *
1403 proto_tree_add_double_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1404 gint length, double value, const char *format, ...) G_GNUC_PRINTF(7,8);
1406 /** Add one of FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree.
1407 @param tree the tree to append this item to
1408 @param hfindex field index
1409 @param tvb the tv buffer of the current data
1410 @param start start of data in tvb
1411 @param length length of data in tvb
1412 @param value data to display
1413 @return the newly created item */
1414 WS_DLL_PUBLIC proto_item *
1415 proto_tree_add_uint(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1416 gint length, guint32 value);
1418 /** Add a formatted FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree,
1419 with the format generating the string for the value and with the field
1420 name being included automatically.
1421 @param tree the tree to append this item to
1422 @param hfindex field index
1423 @param tvb the tv buffer of the current data
1424 @param start start of data in tvb
1425 @param length length of data in tvb
1426 @param value data to display
1427 @param format printf like format string
1428 @param ... printf like parameters
1429 @return the newly created item */
1430 WS_DLL_PUBLIC proto_item *
1431 proto_tree_add_uint_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1432 gint start, gint length, guint32 value, const char *format, ...)
1435 /** Add a formatted FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree,
1436 with the format generating the entire string for the entry, including any
1438 @param tree the tree to append this item to
1439 @param hfindex field index
1440 @param tvb the tv buffer of the current data
1441 @param start start of data in tvb
1442 @param length length of data in tvb
1443 @param value data to display
1444 @param format printf like format string
1445 @param ... printf like parameters
1446 @return the newly created item */
1447 WS_DLL_PUBLIC proto_item *
1448 proto_tree_add_uint_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1449 gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1451 /** Add an FT_UINT64 to a proto_tree.
1452 @param tree the tree to append this item to
1453 @param hfindex field index
1454 @param tvb the tv buffer of the current data
1455 @param start start of data in tvb
1456 @param length length of data in tvb
1457 @param value data to display
1458 @return the newly created item */
1459 WS_DLL_PUBLIC proto_item *
1460 proto_tree_add_uint64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1461 gint length, guint64 value);
1463 /** Add a formatted FT_UINT64 to a proto_tree, with the format generating
1464 the string for the value and with the field name being included
1466 @param tree the tree to append this item to
1467 @param hfindex field index
1468 @param tvb the tv buffer of the current data
1469 @param start start of data in tvb
1470 @param length length of data in tvb
1471 @param value data to display
1472 @param format printf like format string
1473 @param ... printf like parameters
1474 @return the newly created item */
1475 WS_DLL_PUBLIC proto_item *
1476 proto_tree_add_uint64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1477 gint start, gint length, guint64 value, const char *format, ...)
1480 /** Add a formatted FT_UINT64 to a proto_tree, with the format generating
1481 the entire string for the entry, including any field name.
1482 @param tree the tree to append this item to
1483 @param hfindex field index
1484 @param tvb the tv buffer of the current data
1485 @param start start of data in tvb
1486 @param length length of data in tvb
1487 @param value data to display
1488 @param format printf like format string
1489 @param ... printf like parameters
1490 @return the newly created item */
1491 WS_DLL_PUBLIC proto_item *
1492 proto_tree_add_uint64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1493 gint length, guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1495 /** Add one of FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree.
1496 @param tree the tree to append this item to
1497 @param hfindex field index
1498 @param tvb the tv buffer of the current data
1499 @param start start of data in tvb
1500 @param length length of data in tvb
1501 @param value data to display
1502 @return the newly created item */
1503 WS_DLL_PUBLIC proto_item *
1504 proto_tree_add_int(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1505 gint length, gint32 value);
1507 /** Add a formatted FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree,
1508 with the format generating the string for the value and with the field
1509 name being included automatically.
1510 @param tree the tree to append this item to
1511 @param hfindex field index
1512 @param tvb the tv buffer of the current data
1513 @param start start of data in tvb
1514 @param length length of data in tvb
1515 @param value data to display
1516 @param format printf like format string
1517 @param ... printf like parameters
1518 @return the newly created item */
1519 WS_DLL_PUBLIC proto_item *
1520 proto_tree_add_int_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1521 gint start, gint length, gint32 value, const char *format, ...)
1524 /** Add a formatted FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree,
1525 with the format generating the entire string for the entry, including
1527 @param tree the tree to append this item to
1528 @param hfindex field index
1529 @param tvb the tv buffer of the current data
1530 @param start start of data in tvb
1531 @param length length of data in tvb
1532 @param value data to display
1533 @param format printf like format string
1534 @param ... printf like parameters
1535 @return the newly created item */
1536 WS_DLL_PUBLIC proto_item *
1537 proto_tree_add_int_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1538 gint length, gint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1540 /** Add an FT_INT64 to a proto_tree.
1541 @param tree the tree to append this item to
1542 @param hfindex field index
1543 @param tvb the tv buffer of the current data
1544 @param start start of data in tvb
1545 @param length length of data in tvb
1546 @param value data to display
1547 @return the newly created item */
1548 WS_DLL_PUBLIC proto_item *
1549 proto_tree_add_int64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1550 gint length, gint64 value);
1552 /** Add a formatted FT_INT64 to a proto_tree, with the format generating
1553 the string for the value and with the field name being included
1555 @param tree the tree to append this item to
1556 @param hfindex field index
1557 @param tvb the tv buffer of the current data
1558 @param start start of data in tvb
1559 @param length length of data in tvb
1560 @param value data to display
1561 @param format printf like format string
1562 @param ... printf like parameters
1563 @return the newly created item */
1564 WS_DLL_PUBLIC proto_item *
1565 proto_tree_add_int64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1566 gint start, gint length, gint64 value, const char *format, ...)
1569 /** Add a formatted FT_INT64 to a proto_tree, with the format generating
1570 the entire string for the entry, including any field name.
1571 @param tree the tree to append this item to
1572 @param hfindex field index
1573 @param tvb the tv buffer of the current data
1574 @param start start of data in tvb
1575 @param length length of data in tvb
1576 @param value data to display
1577 @param format printf like format string
1578 @param ... printf like parameters
1579 @return the newly created item */
1580 WS_DLL_PUBLIC proto_item *
1581 proto_tree_add_int64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1582 gint length, gint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1584 /** Add a FT_EUI64 to a proto_tree.
1585 @param tree the tree to append this item to
1586 @param hfindex field index
1587 @param tvb the tv buffer of the current data
1588 @param start start of data in tvb
1589 @param length length of data in tvb
1590 @param value data to display
1591 @return the newly created item */
1592 WS_DLL_PUBLIC proto_item *
1593 proto_tree_add_eui64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1594 gint length, const guint64 value);
1596 /** Add a formatted FT_EUI64 to a proto_tree, with the format generating
1597 the string for the value and with the field name being included
1599 @param tree the tree to append this item to
1600 @param hfindex field index
1601 @param tvb the tv buffer of the current data
1602 @param start start of data in tvb
1603 @param length length of data in tvb
1604 @param value data to display
1605 @param format printf like format string
1606 @param ... printf like parameters
1607 @return the newly created item */
1608 WS_DLL_PUBLIC proto_item *
1609 proto_tree_add_eui64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
1610 gint start, gint length, const guint64 value, const char *format, ...)
1613 /** Add a formatted FT_EUI64 to a proto_tree, with the format generating
1614 the entire string for the entry, including any field name.
1615 @param tree the tree to append this item to
1616 @param hfindex field index
1617 @param tvb the tv buffer of the current data
1618 @param start start of data in tvb
1619 @param length length of data in tvb
1620 @param value data to display
1621 @param format printf like format string
1622 @param ... printf like parameters
1623 @return the newly created item */
1624 WS_DLL_PUBLIC proto_item *
1625 proto_tree_add_eui64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
1626 gint length, const guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);
1629 /** Useful for quick debugging. Also sends string to STDOUT, so don't
1630 leave call to this function in production code.
1631 @param tree the tree to append the text to
1632 @param format printf like format string
1633 @param ... printf like parameters
1634 @return the newly created item */
1635 WS_DLL_PUBLIC proto_item *
1636 proto_tree_add_debug_text(proto_tree *tree, const char *format,
1637 ...) G_GNUC_PRINTF(2,3);
1641 /** Append a string to a protocol item.<br>
1642 NOTE: this function will break with the TRY_TO_FAKE_THIS_ITEM()
1644 Currently only WSP use this function so it is not that bad but try to
1645 avoid using this one if possible.
1646 IF you must use this function you MUST also disable the
1647 TRY_TO_FAKE_THIS_ITEM() optimization for your dissector/function
1648 using proto_item_append_string().
1649 Do that by faking that the tree is visible by calling
1650 proto_tree_set_visible(tree, TRUE) (see packet-wsp.c)
1651 BEFORE you create the item you are later going to use
1652 proto_item_append_string() on.
1653 @param pi the item to append the string to
1654 @param str the string to append */
1656 proto_item_append_string(proto_item *pi, const char *str);
1660 /** Fill given label_str with string representation of field
1661 @param fi the item to get the info from
1662 @param label_str the string to fill
1663 @todo think about changing the parameter profile */
1665 proto_item_fill_label(field_info *fi, gchar *label_str);
1668 /** Register a new protocol.
1669 @param name the full name of the new protocol
1670 @param short_name abbreviated name of the new protocol
1671 @param filter_name protocol name used for a display filter string
1672 @return the new protocol handle */
1674 proto_register_protocol(const char *name, const char *short_name, const char *filter_name);
1676 /** Mark protocol as private
1677 @param proto_id the handle of the protocol */
1680 proto_mark_private(const int proto_id);
1682 /** Return if protocol is private
1683 @param proto_id the handle of the protocol
1684 @return TRUE if it is a private protocol, FALSE is not. */
1685 WS_DLL_PUBLIC gboolean
1686 proto_is_private(const int proto_id);
1688 /** This type of function can be registered to get called whenever
1689 a given field was not found but a its prefix is matched;
1690 It can be used to procrastinate the hf array registration.
1691 @param match what's being matched */
1692 typedef void (*prefix_initializer_t)(const char* match);
1694 /** Register a new prefix for delayed initialization of field arrays
1695 @param prefix the prefix for the new protocol
1696 @param initializer function that will initialize the field array for the given prefix */
1698 proto_register_prefix(const char *prefix, prefix_initializer_t initializer);
1700 /** Initialize every remaining uninitialized prefix. */
1701 WS_DLL_PUBLIC void proto_initialize_all_prefixes(void);
1703 WS_DLL_PUBLIC void proto_register_fields_manual(const int parent, header_field_info **hfi, const int num_records);
1704 WS_DLL_PUBLIC void proto_register_fields_section(const int parent, header_field_info *hfi, const int num_records);
1706 /** Register a header_field array.
1707 @param parent the protocol handle from proto_register_protocol()
1708 @param hf the hf_register_info array
1709 @param num_records the number of records in hf */
1711 proto_register_field_array(const int parent, hf_register_info *hf, const int num_records);
1713 /** Unregister an already registered field.
1714 @param parent the protocol handle from proto_register_protocol()
1715 @param hf_id the field to unregister */
1717 proto_unregister_field (const int parent, gint hf_id);
1719 /** Register a protocol subtree (ett) array.
1720 @param indices array of ett indices
1721 @param num_indices the number of records in indices */
1723 proto_register_subtree_array(gint *const *indices, const int num_indices);
1725 /** Returns number of items (protocols or header fields) registered.
1726 @return the number of items */
1727 WS_DLL_PUBLIC int proto_registrar_n(void);
1729 /** Get name of registered header_field number n.
1730 @param n item # n (0-indexed)
1731 @return the name of this registered item */
1732 extern const char* proto_registrar_get_name(const int n);
1734 /** Get abbreviation of registered header_field number n.
1735 @param n item # n (0-indexed)
1736 @return the abbreviation of this registered item */
1737 WS_DLL_PUBLIC const char* proto_registrar_get_abbrev(const int n);
1739 /** Get the header_field information based upon a field or protocol id.
1740 @param hfindex item # n (0-indexed)
1741 @return the registered item */
1742 WS_DLL_PUBLIC header_field_info* proto_registrar_get_nth(guint hfindex);
1744 /** Get the header_field information based upon a field name.
1745 @param field_name the field name to search for
1746 @return the registered item */
1747 WS_DLL_PUBLIC header_field_info* proto_registrar_get_byname(const char *field_name);
1749 /** Get the header_field id based upon a field name.
1750 @param field_name the field name to search for
1751 @return the field id for the registered item */
1752 extern int proto_registrar_get_id_byname(const char *field_name);
1754 /** Get enum ftenum FT_ of registered header_field number n.
1755 @param n item # n (0-indexed)
1756 @return the registered item */
1757 WS_DLL_PUBLIC enum ftenum proto_registrar_get_ftype(const int n);
1759 /** Get parent protocol of registered header_field number n.
1760 @param n item # n (0-indexed)
1761 @return -1 if item _is_ a protocol */
1762 WS_DLL_PUBLIC int proto_registrar_get_parent(const int n);
1764 /** Is item # n a protocol?
1765 @param n item # n (0-indexed)
1766 @return TRUE if it's a protocol, FALSE if it's not */
1767 WS_DLL_PUBLIC gboolean proto_registrar_is_protocol(const int n);
1769 /** Get length of registered field according to field type.
1770 @param n item # n (0-indexed)
1771 @return 0 means undeterminable at registration time, -1 means unknown field */
1772 extern gint proto_registrar_get_length(const int n);
1775 /** Routines to use to iterate over the protocols and their fields;
1776 * they return the item number of the protocol in question or the
1777 * appropriate hfinfo pointer, and keep state in "*cookie". */
1778 WS_DLL_PUBLIC int proto_get_first_protocol(void **cookie);
1779 WS_DLL_PUBLIC int proto_get_data_protocol(void *cookie);
1780 WS_DLL_PUBLIC int proto_get_next_protocol(void **cookie);
1781 WS_DLL_PUBLIC header_field_info *proto_get_first_protocol_field(const int proto_id, void **cookle);
1782 WS_DLL_PUBLIC header_field_info *proto_get_next_protocol_field(void **cookle);
1784 /** Given a protocol's filter_name.
1785 @param filter_name the filter name to search for
1787 WS_DLL_PUBLIC int proto_get_id_by_filter_name(const gchar* filter_name);
1789 /** Can item # n decoding be disabled?
1790 @param proto_id protocol id (0-indexed)
1791 @return TRUE if it's a protocol, FALSE if it's not */
1792 WS_DLL_PUBLIC gboolean proto_can_toggle_protocol(const int proto_id);
1794 /** Get the "protocol_t" structure for the given protocol's item number.
1795 @param proto_id protocol id (0-indexed) */
1796 WS_DLL_PUBLIC protocol_t *find_protocol_by_id(const int proto_id);
1798 /** Get the protocol's name for the given protocol's item number.
1799 @param proto_id protocol id (0-indexed)
1801 WS_DLL_PUBLIC const char *proto_get_protocol_name(const int proto_id);
1803 /** Get the protocol's item number, for the given protocol's "protocol_t".
1804 @return its proto_id */
1805 WS_DLL_PUBLIC int proto_get_id(const protocol_t *protocol);
1807 /** Get the protocol's short name, for the given protocol's "protocol_t".
1808 @return its short name. */
1809 WS_DLL_PUBLIC const char *proto_get_protocol_short_name(const protocol_t *protocol);
1811 /** Get the protocol's long name, for the given protocol's "protocol_t".
1812 @return its long name. */
1813 WS_DLL_PUBLIC const char *proto_get_protocol_long_name(const protocol_t *protocol);
1815 /** Is protocol's decoding enabled ?
1816 @return TRUE if decoding is enabled, FALSE if not */
1817 WS_DLL_PUBLIC gboolean proto_is_protocol_enabled(const protocol_t *protocol);
1819 /** Get a protocol's filter name by its item number.
1820 @param proto_id protocol id (0-indexed)
1821 @return its filter name. */
1822 WS_DLL_PUBLIC const char *proto_get_protocol_filter_name(const int proto_id);
1824 /** Find commonly-used protocols in a layer list.
1825 * @param layers Protocol layer list
1826 * @param is_ip Set to TRUE if the layer list contains IPv4 or IPv6, otherwise
1827 * unchanged. May be NULL.
1828 * @param is_tcp Set to TRUE if the layer list contains TCP, otherwise
1829 * unchanged. May be NULL.
1830 * @param is_udp Set to TRUE if the layer list contains UDP, otherwise
1831 * unchanged. May be NULL.
1832 * @param is_sctp Set to TRUE if the layer list contains SCTP, otherwise
1833 * unchanged. May be NULL.
1834 * @param is_ssl Set to TRUE if the layer list contains SSL/TLS, otherwise
1835 * unchanged. May be NULL.
1837 WS_DLL_PUBLIC void proto_get_frame_protocols(const wmem_list_t *layers,
1838 gboolean *is_ip, gboolean *is_tcp, gboolean *is_udp, gboolean *is_sctp, gboolean *is_ssl);
1840 /** Enable / Disable protocol of the given item number.
1841 @param proto_id protocol id (0-indexed)
1842 @param enabled enable / disable the protocol */
1843 WS_DLL_PUBLIC void proto_set_decoding(const int proto_id, const gboolean enabled);
1845 /** Enable all protocols */
1846 WS_DLL_PUBLIC void proto_enable_all(void);
1848 /** Disable disabling/enabling of protocol of the given item number.
1849 @param proto_id protocol id (0-indexed) */
1850 WS_DLL_PUBLIC void proto_set_cant_toggle(const int proto_id);
1852 /** Checks for existence any protocol or field within a tree.
1853 @param tree "Protocols" are assumed to be a child of the [empty] root node.
1854 @param id hfindex of protocol or field
1855 @return TRUE = found, FALSE = not found
1856 @todo add explanation of id parameter */
1857 extern gboolean proto_check_for_protocol_or_field(const proto_tree* tree, const int id);
1859 /** Return GPtrArray* of field_info pointers for all hfindex that appear in
1860 tree. Only works with primed trees, and is fast.
1861 @param tree tree of interest
1862 @param hfindex primed hfindex
1863 @return GPtrArry pointer */
1864 WS_DLL_PUBLIC GPtrArray* proto_get_finfo_ptr_array(const proto_tree *tree, const int hfindex);
1866 /** Return whether we're tracking any interesting fields.
1867 Only works with primed trees, and is fast.
1868 @param tree tree of interest
1869 @return TRUE if we're tracking interesting fields */
1870 WS_DLL_PUBLIC gboolean proto_tracking_interesting_fields(const proto_tree *tree);
1872 /** Return GPtrArray* of field_info pointers for all hfindex that appear in
1873 tree. Works with any tree, primed or unprimed, and is slower than
1875 proto_get_finfo_ptr_array because it has to search through the tree.
1876 @param tree tree of interest
1877 @param hfindex index of field info of interest
1878 @return GPtrArry pointer */
1879 WS_DLL_PUBLIC GPtrArray* proto_find_finfo(proto_tree *tree, const int hfindex);
1881 /** Return GPtrArray* of field_info pointers containg all hfindexes that appear
1883 @param tree tree of interest
1884 @return GPtrArry pointer */
1885 WS_DLL_PUBLIC GPtrArray* proto_all_finfos(proto_tree *tree);
1887 /** Dumps a glossary of the protocol registrations to STDOUT */
1888 WS_DLL_PUBLIC void proto_registrar_dump_protocols(void);
1890 /** Dumps a glossary of the field value strings or true/false strings to STDOUT */
1891 WS_DLL_PUBLIC void proto_registrar_dump_values(void);
1893 /** Dumps a glossary of the protocol and field registrations to STDOUT. */
1894 WS_DLL_PUBLIC void proto_registrar_dump_fields(void);
1896 /** Dumps a glossary field types and descriptive names to STDOUT */
1897 WS_DLL_PUBLIC void proto_registrar_dump_ftypes(void);
1900 /** Number of elements in the tree_is_expanded array. With MSVC and a
1901 * libwireshark.dll, we need a special declaration. */
1902 WS_DLL_PUBLIC int num_tree_types;
1904 /** Returns TRUE if subtrees of that type are to be expanded. */
1905 WS_DLL_PUBLIC gboolean tree_expanded(int tree_type);
1907 /** Sets if subtrees of that type are to be expanded. */
1908 WS_DLL_PUBLIC void tree_expanded_set(int tree_type, gboolean value);
1910 /** glib doesn't have g_ptr_array_len of all things!*/
1911 #ifndef g_ptr_array_len
1912 #define g_ptr_array_len(a) ((a)?(a)->len:0)
1915 /** Get number of bits of a header_field.
1916 @param hfinfo header_field
1917 @return the bitwidth */
1919 hfinfo_bitwidth(const header_field_info *hfinfo);
1922 hfinfo_bitshift(const header_field_info *hfinfo);
1924 struct epan_dissect;
1926 /** Can we do a "match selected" on this field.
1927 @param finfo field_info
1928 @param edt epan dissecting
1929 @return TRUE if we can do a "match selected" on the field, FALSE otherwise. */
1930 WS_DLL_PUBLIC gboolean
1931 proto_can_match_selected(field_info *finfo, struct epan_dissect *edt);
1933 /** Construct a "match selected" display filter string.
1934 @param finfo field_info
1935 @param edt epan dissecting
1936 @return the display filter string */
1938 proto_construct_match_selected_string(field_info *finfo, struct epan_dissect *edt);
1940 /** Find field from offset in tvb.
1941 @param tree tree of interest
1942 @param offset offset in the tvb
1943 @param tvb the tv buffer
1944 @return the corresponding field_info */
1945 WS_DLL_PUBLIC field_info*
1946 proto_find_field_from_offset(proto_tree *tree, guint offset, tvbuff_t *tvb);
1948 /** This function will dissect a sequence of bytes that describe a bitmask.
1949 @param tree the tree to append this item to
1950 @param tvb the tv buffer of the current data
1951 @param offset start of data in tvb
1952 @param hf_hdr an 8/16/24/32 bit integer that describes the bitmask to be dissected.
1953 This field will form an expansion under which the individual fields of the
1954 bitmask is dissected and displayed.
1955 This field must be of the type FT_[U]INT{8|16|24|32}.
1956 @param ett subtree index
1957 @param fields an array of pointers to int that lists all the fields of the
1958 bitmask. These fields can be either of the type FT_BOOLEAN for flags
1959 or another integer of the same type/size as hf_hdr with a mask specified.
1960 This array is terminated by a NULL entry.
1961 FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
1962 FT_integer fields that have a value_string attached will have the
1963 matched string displayed on the expansion line.
1964 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
1965 @return the newly created item */
1966 WS_DLL_PUBLIC proto_item *
1967 proto_tree_add_bitmask(proto_tree *tree, tvbuff_t *tvb, const guint offset,
1968 const int hf_hdr, const gint ett, const int **fields, const guint encoding);
1970 /** This function will dissect a sequence of bytes that describe a bitmask.
1971 @param tree the tree to append this item to
1972 @param tvb the tv buffer of the current data
1973 @param offset start of data in tvb
1974 @param len number of bytes of data
1975 @param hf_hdr an 8/16/24/32 bit integer that describes the bitmask to be dissected.
1976 This field will form an expansion under which the individual fields of the
1977 bitmask are dissected and displayed.
1978 This field must be of the type FT_[U]INT{8|16|24|32}.
1979 @param ett subtree index
1980 @param fields an array of pointers to int that lists all the fields of the
1981 bitmask. These fields can be either of the type FT_BOOLEAN for flags
1982 or another integer with a mask specified.
1983 This array is terminated by a NULL entry.
1984 FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
1985 FT_integer fields that have a value_string attached will have the
1986 matched string displayed on the expansion line.
1987 @param exp expert info field used when decodable_len < len. This also means this function
1988 should be called even when tree == NULL
1989 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
1990 @return the newly created item */
1991 WS_DLL_PUBLIC proto_item *
1992 proto_tree_add_bitmask_len(proto_tree *tree, tvbuff_t *tvb, const guint offset, const guint len,
1993 const int hf_hdr, const gint ett, const int **fields, struct expert_field* exp, const guint encoding);
1995 /** Add a text with a subtree of bitfields.
1996 @param tree the tree to append this item to
1997 @param tvb the tv buffer of the current data
1998 @param offset start of data in tvb
1999 @param len length of the field name
2000 @param name field name (NULL if bitfield contents should be used)
2001 @param fallback field name if none of bitfields were usable
2002 @param ett subtree index
2003 @param fields NULL-terminated array of bitfield indexes
2004 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
2005 @param flags bitmask field
2006 @return the newly created item */
2007 WS_DLL_PUBLIC proto_item *
2008 proto_tree_add_bitmask_text(proto_tree *tree, tvbuff_t *tvb, const guint offset, const guint len,
2009 const char *name, const char *fallback,
2010 const gint ett, const int **fields, const guint encoding, const int flags);
2012 #define BMT_NO_APPEND 0x01 /**< Don't change the title at all */
2013 #define BMT_NO_INT 0x02 /**< Don't add integral (non-boolean) fields to title */
2014 #define BMT_NO_FALSE 0x04 /**< Don't add booleans unless they're TRUE */
2015 #define BMT_NO_TFS 0x08 /**< Don't use true_false_string while formatting booleans */
2017 /** Add bits to a proto_tree, using the text label registered to that item.
2018 The item is extracted from the tvbuff handed to it.
2019 @param tree the tree to append this item to
2020 @param hf_index field index. Fields for use with this function should have bitmask==0.
2021 @param tvb the tv buffer of the current data
2022 @param bit_offset start of data in tvb expressed in bits
2023 @param no_of_bits length of data in tvb expressed in bits
2024 @param encoding data encoding
2025 @return the newly created item */
2026 WS_DLL_PUBLIC proto_item *
2027 proto_tree_add_bits_item(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits, const guint encoding);
2029 /** Add bits to a proto_tree, using the text label registered to that item.
2030 * The item is extracted from the tvbuff handed to it as a set
2031 * of crumbs (segments) of contiguous bits, specified by an
2032 * array of crumb_spec elements. The crumbs are assembled to
2033 * create the value. There may be any number of crumbs
2034 * specifying up to a total of 64 bits which may occur anywhere
2035 * within the tvb. If the span of the crumbs within the tvb is 4
2036 * octets or less, a bitmap of the crumbs is produced.
2037 @param tree the tree to append this item to
2038 @param hf_index field index. Fields for use with this function should have bitmask==0.
2039 @param tvb the tv buffer of the current data
2040 @param bit_offset of the first crumb in tvb expressed in bits
2041 @param crumb_spec pointer to crumb_spec array
2042 @param return_value if a pointer is passed here the value is returned.
2043 @return the newly created item */
2045 proto_tree_add_split_bits_item_ret_val(proto_tree *tree, const int hf_index, tvbuff_t *tvb,
2046 const guint bit_offset, const crumb_spec_t *crumb_spec,
2047 guint64 *return_value);
2050 /** Add bitmap text for a split-bits crumb to a proto_tree,
2051 * using the text label registered to an item. The bitmap is
2052 * extracted from the tvbuff handed to it as a crumb (segment)
2053 * of contiguous bits, specified by one of an array of
2054 * crumb_spec elements. This function is normally called once
2055 * per crumb, after the call to
2056 proto_tree_add_split_bits_item_ret_val
2057 @param tree the tree to append this item to
2058 @param hf_index field index. Fields for use with this function should have bitmask==0.
2059 @param tvb the tv buffer of the current data
2060 @param bit_offset of the first crumb in tvb expressed in bits
2061 @param crumb_spec pointer to crumb_spec array
2062 @param crumb_index into the crumb_spec array for this crumb */
2064 proto_tree_add_split_bits_crumb(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset,
2065 const crumb_spec_t *crumb_spec, guint16 crumb_index);
2067 /** Add bits to a proto_tree, using the text label registered to that item.
2068 The item is extracted from the tvbuff handed to it.
2069 @param tree the tree to append this item to
2070 @param hf_index field index. Fields for use with this function should have bitmask==0.
2071 @param tvb the tv buffer of the current data
2072 @param bit_offset start of data in tvb expressed in bits
2073 @param no_of_bits length of data in tvb expressed in bits
2074 @param return_value if a pointer is passed here the value is returned.
2075 @param encoding data encoding
2076 @return the newly created item */
2077 WS_DLL_PUBLIC proto_item *
2078 proto_tree_add_bits_ret_val(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits, guint64 *return_value, const guint encoding);
2080 /** Add bits for a FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32
2081 header field to a proto_tree, with the format generating the
2082 string for the value and with the field name being included automatically.
2083 @param tree the tree to append this item to
2084 @param hf_index field index
2085 @param tvb the tv buffer of the current data
2086 @param bit_offset start of data in tvb expressed in bits
2087 @param no_of_bits length of data in tvb expressed in bit
2088 @param value data to display
2089 @param format printf like format string
2090 @return the newly created item */
2091 WS_DLL_PUBLIC proto_item *
2092 proto_tree_add_uint_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
2093 guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
2095 /** Add bits for a FT_BOOLEAN header field to a proto_tree, with
2096 the format generating the string for the value and with the field
2097 name being included automatically.
2098 @param tree the tree to append this item to
2099 @param hf_index field index
2100 @param tvb the tv buffer of the current data
2101 @param bit_offset start of data in tvb expressed in bits
2102 @param no_of_bits length of data in tvb expressed in bit
2103 @param value data to display
2104 @param format printf like format string
2105 @param ... printf like parameters
2106 @return the newly created item */
2108 proto_tree_add_boolean_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
2109 guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
2111 /** Add bits for a FT_INT8, FT_INT16, FT_INT24 or FT_INT32
2112 header field to a proto_tree, with the format generating the
2113 string for the value and with the field name being included automatically.
2114 @param tree the tree to append this item to
2115 @param hf_index field index
2116 @param tvb the tv buffer of the current data
2117 @param bit_offset start of data in tvb expressed in bits
2118 @param no_of_bits length of data in tvb expressed in bit
2119 @param value data to display
2120 @param format printf like format string
2121 @param ... printf like parameters
2122 @return the newly created item */
2124 proto_tree_add_int_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
2125 gint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);
2127 /** Add bits for a FT_FLOAT header field to a proto_tree, with
2128 the format generating the string for the value and with the field
2129 name being included automatically.
2130 @param tree the tree to append this item to
2131 @param hf_index field index
2132 @param tvb the tv buffer of the current data
2133 @param bit_offset start of data in tvb expressed in bits
2134 @param no_of_bits length of data in tvb expressed in bit
2135 @param value data to display
2136 @param format printf like format string
2137 @param ... printf like parameters
2138 @return the newly created item */
2140 proto_tree_add_float_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
2141 float value, const char *format, ...) G_GNUC_PRINTF(7,8);
2144 /** Add a FT_STRING with ENC_3GPP_TS_23_038_7BITS encoding to a proto_tree.
2145 @param tree the tree to append this item to
2146 @param hfindex field index
2147 @param tvb the tv buffer of the current data
2148 @param bit_offset start of data in tvb expressed in bits
2149 @param no_of_chars number of 7bits characters to display
2150 @return the newly created item */
2151 WS_DLL_PUBLIC proto_item *
2152 proto_tree_add_ts_23_038_7bits_item(proto_tree *tree, const int hfindex, tvbuff_t *tvb,
2153 const guint bit_offset, const gint no_of_chars);
2155 /** Check if given string is a valid field name
2156 @param field_name the field name to check
2157 @return 0 if valid, else first illegal character */
2158 WS_DLL_PUBLIC guchar
2159 proto_check_field_name(const gchar *field_name);
2162 /** Check if given string is a valid field name
2163 @param tree the tree to append this item to
2164 @param field_id the field id used for custom column
2165 @param occurrence the occurrence of the field used for custom column
2166 @param result the buffer to fill with the field string
2167 @param expr the filter expression
2168 @param size the size of the string buffer */
2170 proto_custom_set(proto_tree* tree, const int field_id,
2173 gchar *expr, const int size );
2175 /* #define HAVE_HFI_SECTION_INIT */
2177 #ifdef HAVE_HFI_SECTION_INIT
2178 #define HFI_INIT(proto) __attribute__((section( "_data_" G_STRINGIFY(proto)))) __attribute__((aligned(sizeof(void *))))
2180 #define proto_register_fields(proto, hfi, count) \
2182 extern header_field_info __start__data_ ##proto[]; \
2183 extern header_field_info __stop__data_ ##proto[]; \
2185 proto_register_fields_section(proto, __start__data_ ##proto, (int) (__stop__data_ ##proto - __start__data_ ##proto)); \
2188 #define HFI_INIT(proto)
2189 #define proto_register_fields(proto, hfi, count) \
2190 proto_register_fields_manual(proto, hfi, count)
2193 #ifdef NEW_PROTO_TREE_API
2194 #define proto_tree_add_item(tree, hfinfo, tvb, start, length, encoding) \
2195 proto_tree_add_item_new(tree, hfinfo, tvb, start, length, encoding)
2197 #define proto_tree_add_boolean(tree, hfinfo, tvb, start, length, value) \
2198 proto_tree_add_boolean(tree, (hfinfo)->id, tvb, start, length, value)
2200 #define proto_tree_add_string(tree, hfinfo, tvb, start, length, value) \
2201 proto_tree_add_string(tree, (hfinfo)->id, tvb, start, length, value)
2203 #define proto_tree_add_time(tree, hfinfo, tvb, start, length, value) \
2204 proto_tree_add_time(tree, (hfinfo)->id, tvb, start, length, value)
2206 #define proto_tree_add_int(tree, hfinfo, tvb, start, length, value) \
2207 proto_tree_add_int(tree, (hfinfo)->id, tvb, start, length, value)
2209 #define proto_tree_add_uint(tree, hfinfo, tvb, start, length, value) \
2210 proto_tree_add_uint(tree, (hfinfo)->id, tvb, start, length, value)
2217 #endif /* __cplusplus */
2219 #endif /* proto.h */