aboutsummaryrefslogtreecommitdiffstats
path: root/ui/cli/tap-h225counter.c
blob: 710a47f31dfce593552e8df5760efca86c82bd33 (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
390
391
392
393
394
395
396
397
398
399
400
/* tap_h225counter.c
 * h225 message counter for wireshark
 * Copyright 2003 Lars Roland
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"

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

#include "epan/packet.h"
#include "epan/packet_info.h"
#include <epan/tap.h>
#include <epan/stat_cmd_args.h>
#include "epan/value_string.h"
#include <epan/dissectors/packet-h225.h>

/* following values represent the size of their valuestring arrays */

#define RAS_MSG_TYPES 33
#define CS_MSG_TYPES 13

#define GRJ_REASONS 8
#define RRJ_REASONS 18
#define URQ_REASONS 6
#define URJ_REASONS 6
#define ARJ_REASONS 22
#define BRJ_REASONS 8
#define DRQ_REASONS 3
#define DRJ_REASONS 4
#define LRJ_REASONS 16
#define IRQNAK_REASONS 4
#define REL_CMP_REASONS 26
#define FACILITY_REASONS 11

void register_tap_listener_h225counter(void);

/* used to keep track of the statistics for an entire program interface */
typedef struct _h225counter_t {
	char *filter;
	guint32 ras_msg[RAS_MSG_TYPES + 1];
	guint32 cs_msg[CS_MSG_TYPES + 1];
	guint32 grj_reason[GRJ_REASONS + 1];
	guint32 rrj_reason[RRJ_REASONS + 1];
	guint32 urq_reason[URQ_REASONS + 1];
	guint32 urj_reason[URJ_REASONS + 1];
	guint32 arj_reason[ARJ_REASONS + 1];
	guint32 brj_reason[BRJ_REASONS + 1];
	guint32 drq_reason[DRQ_REASONS + 1];
	guint32 drj_reason[DRJ_REASONS + 1];
	guint32 lrj_reason[LRJ_REASONS + 1];
	guint32 irqnak_reason[IRQNAK_REASONS + 1];
	guint32 rel_cmp_reason[REL_CMP_REASONS + 1];
	guint32 facility_reason[FACILITY_REASONS + 1];
} h225counter_t;


static void
h225counter_reset(void *phs)
{
	h225counter_t *hs = (h225counter_t *)phs;
	char *save_filter = hs->filter;

	memset(hs, 0, sizeof(h225counter_t));

	hs->filter = save_filter;
}

static int
h225counter_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi)
{
	h225counter_t *hs = (h225counter_t *)phs;
	const h225_packet_info *pi = (const h225_packet_info *)phi;

	switch (pi->msg_type) {

	case H225_RAS:
		if (pi->msg_tag == -1) { /* uninitialized */
			return 0;
		}
		else if (pi->msg_tag >= RAS_MSG_TYPES) { /* unknown */
			hs->ras_msg[RAS_MSG_TYPES]++;
		}
		else {
			hs->ras_msg[pi->msg_tag]++;
		}

		/* Look for reason tag */
		if (pi->reason == -1) { /* uninitialized */
			break;
		}

		switch (pi->msg_tag) {

		case 2:	/* GRJ */
			if (pi->reason < GRJ_REASONS)
				hs->grj_reason[pi->reason]++;
			else
				hs->grj_reason[GRJ_REASONS]++;
			break;
		case 5:	/* RRJ */
			if (pi->reason < RRJ_REASONS)
				hs->rrj_reason[pi->reason]++;
			else
				hs->rrj_reason[RRJ_REASONS]++;
			break;
		case 6:	/* URQ */
			if (pi->reason < URQ_REASONS)
				hs->urq_reason[pi->reason]++;
			else
				hs->urq_reason[URQ_REASONS]++;
			break;
		case 8:	/* URJ */
			if (pi->reason < URJ_REASONS)
				hs->urj_reason[pi->reason]++;
			else
				hs->urj_reason[URJ_REASONS]++;
			break;
		case 11: /* ARJ */
			if (pi->reason < ARJ_REASONS)
				hs->arj_reason[pi->reason]++;
			else
				hs->arj_reason[ARJ_REASONS]++;
			break;
		case 14: /* BRJ */
			if (pi->reason < BRJ_REASONS)
				hs->brj_reason[pi->reason]++;
			else
				hs->brj_reason[BRJ_REASONS]++;
			break;
		case 15: /* DRQ */
			if (pi->reason < DRQ_REASONS)
				hs->drq_reason[pi->reason]++;
			else
				hs->drq_reason[DRQ_REASONS]++;
			break;
		case 17: /* DRJ */
			if (pi->reason < DRJ_REASONS)
				hs->drj_reason[pi->reason]++;
			else
				hs->drj_reason[DRJ_REASONS]++;
			break;
		case 20: /* LRJ */
			if (pi->reason < LRJ_REASONS)
				hs->lrj_reason[pi->reason]++;
			else
				hs->lrj_reason[LRJ_REASONS]++;
			break;
		case 29: /* IRQ Nak */
			if (pi->reason < IRQNAK_REASONS)
				hs->irqnak_reason[pi->reason]++;
			else
				hs->irqnak_reason[IRQNAK_REASONS]++;
			break;

		default:
			/* do nothing */
			break;
		}

		break;

	case H225_CS:
		if (pi->msg_tag == -1) { /* uninitialized */
			return 0;
		}
		else if (pi->msg_tag >= CS_MSG_TYPES) { /* unknown */
			hs->cs_msg[CS_MSG_TYPES]++;
		}
		else {
			hs->cs_msg[pi->msg_tag]++;
		}

		/* Look for reason tag */
		if (pi->reason == -1) { /* uninitialized */
			break;
		}

		switch (pi->msg_tag) {

		case 5:	/* ReleaseComplete */
			if (pi->reason < REL_CMP_REASONS)
				hs->rel_cmp_reason[pi->reason]++;
			else
				hs->rel_cmp_reason[REL_CMP_REASONS]++;
			break;
		case 6:	/* Facility */
			if (pi->reason < FACILITY_REASONS)
				hs->facility_reason[pi->reason]++;
			else
				hs->facility_reason[FACILITY_REASONS]++;
			break;
		default:
			/* do nothing */
			break;
		}

		break;

	default:
		return 0;
	}

	return 1;
}


static void
h225counter_draw(void *phs)
{
	h225counter_t *hs = (h225counter_t *)phs;
	int i, j;

	printf("================== H225 Message and Reason Counter ==================\n");
	printf("RAS-Messages:\n");
	for (i=0; i<=RAS_MSG_TYPES; i++) {
		if (hs->ras_msg[i] != 0) {
			printf("  %s : %u\n", val_to_str(i, h225_RasMessage_vals, "unknown ras-messages  "), hs->ras_msg[i]);
			/* reason counter */
			switch (i) {
			case 2: /* GRJ */
				for (j=0; j<=GRJ_REASONS; j++) {
					if (hs->grj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, GatekeeperRejectReason_vals, "unknown reason   "), hs->grj_reason[j]);
					}
				}
				break;
			case 5: /* RRJ */
				for (j=0; j<=RRJ_REASONS; j++) {
					if (hs->rrj_reason[j] != 0 ) {
						printf("    %s : %u\n", val_to_str(j, RegistrationRejectReason_vals, "unknown reason   "), hs->rrj_reason[j]);
					}
				}
				break;
			case 6: /* URQ */
				for (j=0; j<=URQ_REASONS; j++) {
					if (hs->urq_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, UnregRequestReason_vals, "unknown reason   "), hs->urq_reason[j]);
					}
				}
				break;
			case 8: /* URJ */
				for (j=0; j<=URJ_REASONS; j++) {
					if (hs->urj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, UnregRejectReason_vals, "unknown reason   "), hs->urj_reason[j]);
					}
				}
				break;
			case 11: /* ARJ */
				for (j=0; j<=ARJ_REASONS; j++) {
					if (hs->arj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, AdmissionRejectReason_vals, "unknown reason   "), hs->arj_reason[j]);
					}
				}
				break;
			case 14: /* BRJ */
				for (j=0; j<=BRJ_REASONS; j++) {
					if (hs->brj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, BandRejectReason_vals, "unknown reason   "), hs->brj_reason[j]);
					}
				}
				break;
			case 15: /* DRQ */
				for (j=0; j<=DRQ_REASONS; j++) {
					if (hs->drq_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, DisengageReason_vals, "unknown reason   "), hs->drq_reason[j]);
					}
				}
				break;
			case 17: /* DRJ */
				for (j=0; j<=DRJ_REASONS; j++) {
					if (hs->drj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, DisengageRejectReason_vals, "unknown reason   "), hs->drj_reason[j]);
					}
				}
				break;
			case 20: /* LRJ */
				for (j=0; j<=LRJ_REASONS; j++) {
					if (hs->lrj_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, LocationRejectReason_vals, "unknown reason   "), hs->lrj_reason[j]);
					}
				}
				break;
			case 29: /* IRQNak */
				for (j=0; j<= IRQNAK_REASONS; j++) {
					if (hs->irqnak_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, InfoRequestNakReason_vals, "unknown reason   "), hs->irqnak_reason[j]);
					}
				}
				break;
			default:
				break;
			}
			/* end of reason counter*/
		}
	}
	printf("Call Signalling:\n");
	for (i=0; i<=CS_MSG_TYPES; i++) {
		if (hs->cs_msg[i] != 0) {
			printf("  %s : %u\n", val_to_str(i, T_h323_message_body_vals, "unknown cs-messages   "), hs->cs_msg[i]);
			/* reason counter */
			switch (i) {
			case 5: /* ReleaseComplete */
				for (j=0; j<=REL_CMP_REASONS; j++) {
					if (hs->rel_cmp_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, h225_ReleaseCompleteReason_vals, "unknown reason   "), hs->rel_cmp_reason[j]);
					}
				}
				break;
			case 6: /* Facility */
				for (j=0; j<=FACILITY_REASONS; j++) {
					if (hs->facility_reason[j] != 0) {
						printf("    %s : %u\n", val_to_str(j, FacilityReason_vals, "unknown reason   "), hs->facility_reason[j]);
					}
				}
				break;
			default:
				break;
			}
		}
	}
	printf("=====================================================================\n");
}


static void
h225counter_init(const char *opt_arg, void *userdata _U_)
{
	h225counter_t *hs;
	GString *error_string;

	hs = g_new(h225counter_t, 1);
	if (!strncmp(opt_arg, "h225,counter,", 13)) {
		hs->filter = g_strdup(opt_arg+13);
	} else {
		hs->filter = NULL;
	}

	h225counter_reset(hs);

	error_string = register_tap_listener("h225", hs, hs->filter, 0, NULL, h225counter_packet, h225counter_draw);
	if (error_string) {
		/* error, we failed to attach to the tap. clean up */
		g_free(hs->filter);
		g_free(hs);

		fprintf(stderr, "tshark: Couldn't register h225,counter tap: %s\n",
			error_string->str);
		g_string_free(error_string, TRUE);
		exit(1);
	}
}

static stat_tap_ui h225counter_ui = {
	REGISTER_STAT_GROUP_GENERIC,
	NULL,
	"h225,counter",
	h225counter_init,
	-1,
	0,
	NULL
};

void
register_tap_listener_h225counter(void)
{
	register_stat_tap_ui(&h225counter_ui, NULL);
}

/*
 * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 8
 * tab-width: 8
 * indent-tabs-mode: t
 * End:
 *
 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
 * :indentSize=8:tabSize=8:noTabs=false:
 */