aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/mate/mate.h
blob: efadd1c5128fee523c0539526f4e7813279f9407 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
/* mate.h
* MATE -- Meta Analysis and Tracing Engine 
*
* Copyright 2004, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/


#ifndef __MATE_H_
#define __MATE_H_

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#ifndef ENABLE_STATIC
#include "moduleinfo.h"
#include <gmodule.h>
#else 
#include <glib.h>
#endif

#include <stdio.h>
#include <string.h>
#include <errno.h>

#include <epan/packet.h>
#include <epan/strutil.h>
#include <epan/prefs.h>
#include <epan/proto.h>
#include <epan/epan_dissect.h>
#include <epan/tap.h>
#include <epan/filesystem.h>
#include <epan/report_err.h>

#include "mate_util.h"

/* defaults */

#define DEFAULT_GOG_EXPIRATION 2.0

#ifdef WIN32
#define DIR_SEP '\\'
#else
#define DIR_SEP '/'
#endif

#define DEFAULT_MATE_LIB_PATH "matelib"

#define MATE_ITEM_ID_SIZE 24

#define VALUE_TOO ((void*)1)

#define MateConfigError 65535

typedef enum _gop_tree_mode_t {
	GOP_NULL_TREE,
	GOP_BASIC_TREE,
	GOP_FULL_TREE
} gop_tree_mode_t;

typedef enum _gop_pdu_tree {
	GOP_NO_TREE,
	GOP_PDU_TREE,
	GOP_FRAME_TREE,
	GOP_BASIC_PDU_TREE
} gop_pdu_tree_t;

typedef enum _accept_mode_t {
	ACCEPT_MODE,
	REJECT_MODE
} accept_mode_t;


typedef struct _mate_cfg_pdu {
	gchar* name;
	guint last_id; /* keeps the last id given to an item of this kind */

	GHashTable* items; /* all the items of this type */
	GPtrArray* transforms; /* transformations to be applied */
	
	int hfid;
	
	int hfid_proto;
	int hfid_pdu_rel_time;
	int hfid_pdu_time_in_gop;

	GHashTable* my_hfids; /* for creating register info */
	
	gint ett;
	gint ett_attr;
	
	GHashTable* hfids_attr; /* k=hfid v=avp_name */

	gboolean discard;
	gboolean last_extracted;
	gboolean drop_unassigned;

	GPtrArray* transport_ranges; /* hfids of candidate transport ranges from which to extract attributes */
	GPtrArray* payload_ranges; /* hfids of candidate payload ranges from which to extract attributes */
	
	avpl_match_mode criterium_match_mode;
	accept_mode_t criterium_accept_mode;
	AVPL* criterium;
} mate_cfg_pdu;


typedef struct _mate_cfg_gop {
	gchar* name;
	guint last_id; /* keeps the last id given to an item of this kind */
	GHashTable* items; /* all the items of this type */

	GPtrArray* transforms; /* transformations to be applied */
	gchar* on_pdu;

	AVPL* key; /* key candidate avpl */
	AVPL* start; /* start candidate avpl */
	AVPL* stop;  /* stop candidate avpl */
	AVPL* extra; /* attributes to be added */
	
	float expiration;
	float idle_timeout;
	float lifetime;
	
	gboolean drop_unassigned;
	gop_pdu_tree_t pdu_tree_mode;
	gboolean show_times;
	
	GHashTable* my_hfids; /* for creating register info */
	int hfid;
	int hfid_start_time;
	int hfid_stop_time;
	int hfid_last_time;
	int hfid_gop_pdu;
	int hfid_gop_num_pdus;
	
	gint ett;
	gint ett_attr;
	gint ett_times;
	gint ett_children;
	
	GHashTable* gop_index;
	GHashTable* gog_index;
} mate_cfg_gop;


typedef struct _mate_cfg_gog {
	gchar* name;

	GHashTable* items; /* all the items of this type */
	guint last_id; /* keeps the last id given to an item of this kind */
	
	GPtrArray* transforms; /* transformations to be applied */

	LoAL* keys;
	AVPL* extra; /* attributes to be added */

	float expiration;
	gop_tree_mode_t gop_tree_mode;
	gboolean show_times;
	
	GHashTable* my_hfids; /* for creating register info */
	int hfid;
	int hfid_gog_num_of_gops;
	int hfid_gog_gop;
	int hfid_gog_gopstart;
	int hfid_gog_gopstop;	
	int hfid_start_time;
	int hfid_stop_time;
	int hfid_last_time;
	gint ett;
	gint ett_attr;
	gint ett_times;
	gint ett_children;
	gint ett_gog_gop;
} mate_cfg_gog;

typedef struct _mate_config {
	gchar* mate_config_file; /* name of the config file */

	int hfid_mate;
	
	GString* fields_filter; /* "ip.addr || dns.id || ... " for the tap */
	GString* protos_filter; /* "dns || ftp || ..." for the tap */
	gchar* tap_filter;
	
	FILE* dbg_facility; /* where to dump dbgprint output g_message if null */
	
	gchar* mate_lib_path; /* where to look for "Include" files first */
	
	GHashTable* pducfgs; /* k=pducfg->name v=pducfg */
	GHashTable* gopcfgs; /* k=gopcfg->name v=gopcfg */
	GHashTable* gogcfgs; /* k=gogcfg->name v=gogcfg */
	GHashTable* transfs; /* k=transform->name v=transform */
	
	GPtrArray* pducfglist; /* pducfgs in order of "execution" */
	GHashTable* gops_by_pduname; /* k=pducfg->name v=gopcfg */
	GHashTable* gogs_by_gopname; /* k=gopname v=loal where avpl->name == matchedgop->name */
	
	GArray* hfrs;
	gint ett_root;
	GArray* ett;
	
	/* defaults */
	struct _mate_cfg_defaults {
		struct _pdu_defaults {
			avpl_match_mode match_mode;
			avpl_replace_mode replace_mode;
			gboolean last_extracted;
			
			gboolean drop_unassigned;
			gboolean discard;
		} pdu;
		
		struct _gop_defaults {
			float expiration;
			float idle_timeout;
			float lifetime;
			
			gop_pdu_tree_t pdu_tree_mode;
			gboolean show_times;
			gboolean drop_unassigned;

		} gop;
		
		struct _gog_defaults {
			float expiration;
			
			gop_tree_mode_t gop_tree_mode;
		} gog;
	} defaults;
	
	/* what to dbgprint */
	int dbg_lvl;	
	int dbg_pdu_lvl;
	int dbg_gop_lvl;
	int dbg_gog_lvl;
	
	GPtrArray* config_stack;
	GString* config_error;
	
} mate_config;


typedef struct _mate_config_frame {
	gchar* filename;
	guint  linenum;
} mate_config_frame;


typedef struct _mate_runtime_data {
	guint current_items; /* a count of items */
	GMemChunk* mate_items;
	float now;
	guint highest_analyzed_frame;
	
	GHashTable* frames; /* k=frame.num v=pdus */
	
} mate_runtime_data;

typedef struct _mate_pdu mate_pdu;
typedef struct _mate_gop mate_gop;
typedef struct _mate_gog mate_gog;

/* these are used to contain information regarding pdus, gops and gogs */
struct _mate_pdu {
	guint32 id; /* 1:1 -> saving a g_malloc */
	mate_cfg_pdu* cfg; /* the type of this item */

	AVPL* avpl;
	
	guint32 frame; /* wich frame I belog to? */
	mate_pdu* next_in_frame; /* points to the next pdu in this frame */
	float rel_time; /* time since start of capture  */
	
	mate_gop* gop; /* the gop the pdu belongs to (if any) */
	mate_pdu* next; /* next in gop */
	float time_in_gop; /* time since gop start */
	
	gboolean first; /* is this the first pdu in this frame? */
	gboolean is_start; /* this is the start pdu for this gop */
	gboolean is_stop; /* this is the stop pdu for this gop */
	gboolean after_release; /* this pdu comes after the stop */
	
};


struct _mate_gop {
	guint32 id;
	mate_cfg_gop* cfg; 
	
	gchar* gop_key;
	AVPL* avpl; /* the attributes of the pdu/gop/gog */
	guint last_n;
	
	mate_gog* gog; /* the gog of a gop */
	mate_gop* next; /* next in gog; */
	
	float expiration; /* when will it expire after release (all gops releases if gog)? */
	float idle_expiration; /* when will it expire if no new pdus are assigned to it */
	float time_to_die;
	float time_to_timeout;
	
	float start_time; /* time of start */
	float release_time; /* when this gop/gog was released */
	float last_time; /* the rel_time at which the last pdu has been added (to gop or gog's gop) */


	int num_of_pdus; /* how many gops a gog has? */
	int num_of_after_release_pdus;  /* how many pdus have arrived since it's been released */
	mate_pdu* pdus; /* pdus that belong to a gop (NULL in gog) */
	mate_pdu* last_pdu; /* last pdu in pdu's list */
	
	gboolean released; /* has this gop been released? */
};


struct _mate_gog {
	guint32 id;
	mate_cfg_gog* cfg; 
	
	AVPL* avpl; /* the attributes of the pdu/gop/gog */
	guint last_n; /* the number of attributes the avpl had the last time we checked */
	
	gboolean released; /* has this gop been released? */
	
	float expiration; /* when will it expire after release (all gops releases if gog)? */
	float idle_expiration; /* when will it expire if no new pdus are assigned to it */
	
	/* on gop and gog: */
	float start_time; /* time of start */
	float release_time; /* when this gog was released */
	float last_time; /* the rel_time at which the last pdu has been added */
	
	mate_gop* gops; /* gops that belong to a gog (NULL in gop) */
	mate_gop* last_gop; /* last gop in gop's list */
	
	int num_of_gops; /* how many gops a gog has? */
	int num_of_counting_gops;  /* how many of them count for gog release */
	int num_of_released_gops;  /* how many of them have already been released */
	GPtrArray* gog_keys; /* the keys under which this gog is stored in the gogs hash */
};

typedef union _mate_max_size {
	mate_pdu pdu;
	mate_gop gop;
	mate_gog gog;
} mate_max_size;

/* from mate_runtime.c */
extern void initialize_mate_runtime(void);
extern mate_pdu* mate_get_pdus(guint32 framenum);
extern void mate_analyze_frame(packet_info *pinfo, proto_tree* tree);

/* from mate_setup.c */
extern mate_config* mate_make_config(const gchar* filename, int mate_hfid);

extern mate_config* mate_cfg(void);
extern mate_cfg_pdu* new_pducfg(gchar* name);
extern mate_cfg_gop* new_gopcfg(gchar* name);
extern mate_cfg_gog* new_gogcfg(gchar* name);

extern gboolean add_hfid(header_field_info*  hfi, gchar* as, GHashTable* where);
extern gchar* add_ranges(gchar* range, GPtrArray* range_ptr_arr);


/* from mate_parser.l */
extern gboolean mate_load_config(const gchar* filename, mate_config* mc);

#endif