summaryrefslogtreecommitdiffstats
path: root/src/main.c
blob: 931605cd195e7861369b287c35b17353dbca508e (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
/*
 * Copyright (c) 2010 Patrick McHardy <kaber@trash.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <getopt.h>

#include <dect/libdect.h>
#include <dect/raw.h>
#include <dectmon.h>
#include <audio.h>
#include <raw.h>
#include <cli.h>
#include <ops.h>

#define DECT_MAX_CLUSTERS	16
#define DECT_LOCK_TIMEOUT	15

#define cluster_log(priv, fmt, args...) \
	dectmon_log("%s: " fmt, \
		    ((struct dect_handle_priv *)dect_handle_priv(dh))->cluster, \
		    ## args)

LIST_HEAD(dect_handles);
static unsigned int locked;
static bool scan;

static FILE *logfile;
static FILE *dumpfile;

void dectmon_log(const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	cli_display(fmt, ap);
	va_end(ap);

	if (logfile) {
		va_start(ap, fmt);
		vfprintf(logfile, fmt, ap);
		va_end(ap);
	}
}

static struct dect_handle_priv *dect_handle_lookup(const struct dect_ari *pari)
{
	struct dect_handle_priv *priv;

	list_for_each_entry(priv, &dect_handles, list)
		if (!dect_ari_cmp(pari, &priv->pari))
			return priv;
	return NULL;
}

struct dect_handle_priv *dect_handle_get_by_name(const char *name)
{
	struct dect_handle_priv *priv;

	list_for_each_entry(priv, &dect_handles, list)
		if (!strcmp(name, priv->cluster))
			return priv;
	return NULL;
}

static void dect_lock_timer(struct dect_handle *dh, struct dect_timer *timer)
{
	struct dect_handle_priv *priv = dect_handle_priv(dh);

	cluster_log(dh, "timeout, lock failed\n");
	memset(&priv->pari, 0, sizeof(priv->pari));
	dect_llme_scan_req(dh);
}

static void dect_mac_me_info_ind(struct dect_handle *dh,
				 const struct dect_ari *pari,
				 const struct dect_fp_capabilities *fpc)
{
	struct dect_handle_priv *priv = dect_handle_priv(dh);

	if (!scan)
		return;

	if (pari != NULL) {
		if (dect_handle_lookup(pari) == NULL) {
			dect_llme_mac_me_info_res(dh, pari);
			priv->pari = *pari;
			dect_timer_start(dh, priv->lock_timer, DECT_LOCK_TIMEOUT);
		}
	} else if (fpc->fpc != 0) {
		if (dect_timer_running(priv->lock_timer)) {
			locked++;
			cluster_log(dh, "locked (%u): EMC: %.4x FPN: %.5x\n",
				    locked, priv->pari.emc, priv->pari.fpn);

			dect_timer_stop(dh, priv->lock_timer);
			priv->locked = true;
		}
	} else {
		locked--;
		cluster_log(dh, "unlocked (%u): EMC: %.4x FPN: %.5x\n",
			    locked, priv->pari.emc, priv->pari.fpn);

		memset(&priv->pari, 0, sizeof(priv->pari));
		priv->locked = false;
		dect_llme_scan_req(dh);
	}
}

static struct dect_llme_ops_ llme_ops = {
	.mac_me_info_ind	= dect_mac_me_info_ind,
};

static void dect_raw_rcv(struct dect_handle *dh, struct dect_fd *dfd,
			 struct dect_msg_buf *mb)
{
	struct dect_raw_frame_hdr f;

	if (dumpfile != NULL) {
		f.slot	 = mb->slot;
		f.frame	 = mb->frame;
		f.mfn 	 = mb->mfn;
		f.len	 = mb->len;

		fwrite(&f, sizeof(f), 1, dumpfile);
		fwrite(mb->data, mb->len, 1, dumpfile);
	}
	dect_mac_rcv(dh, mb);
}

static struct dect_raw_ops raw_ops = {
	.raw_rcv		= dect_raw_rcv,
};

static struct dect_ops ops = {
	.priv_size		= sizeof(struct dect_handle_priv),
	.llme_ops		= &llme_ops,
	.raw_ops		= &raw_ops,
};

uint32_t debug_mask = ~0;

static void dect_debug(enum dect_debug_subsys subsys, const char *fmt,
		       va_list ap)
{
	char buf[1024];

	if (debug_mask & (1 << subsys)) {
		vsnprintf(buf, sizeof(buf), fmt, ap);
		dectmon_log("%s", buf);
	}
}

#define OPTSTRING "c:sm:d:n:a:p:l:w:h"

enum {
	OPT_CLUSTER	= 'c',
	OPT_SCAN	= 's',
	OPT_DUMP_MAC	= 'm',
	OPT_DUMP_DLC	= 'd',
	OPT_DUMP_NWK	= 'n',
	OPT_AUDIO	= 'a',
	OPT_AUTH_PIN	= 'p',
	OPT_LOGFILE	= 'l',
	OPT_DUMPFILE	= 'w',
	OPT_HELP	= 'h',
};

static const struct option dectmon_opts[] = {
	{ .name = "cluster",  .has_arg = true,	.flag = 0, .val = OPT_CLUSTER, },
	{ .name = "scan",     .has_arg = false, .flag = 0, .val = OPT_SCAN, },
	{ .name = "dump-mac", .has_arg = true,  .flag = 0, .val = OPT_DUMP_MAC, },
	{ .name = "dump-dlc", .has_arg = true,  .flag = 0, .val = OPT_DUMP_DLC, },
	{ .name = "dump-nwk", .has_arg = true,  .flag = 0, .val = OPT_DUMP_NWK, },
	{ .name = "audio",    .has_arg = true,  .flag = 0, .val = OPT_AUDIO, },
	{ .name = "auth-pin", .has_arg = true,  .flag = 0, .val = OPT_AUTH_PIN, },
	{ .name = "logfile",  .has_arg = true,  .flag = 0, .val = OPT_LOGFILE, },
	{ .name = "dumpfile", .has_arg = true,	.flag = 0, .val = OPT_DUMPFILE, },
	{ .name = "help",     .has_arg = false, .flag = 0, .val = OPT_HELP, },
	{ },
};

static void pexit(const char *str)
{
	perror(str);
	exit(1);
}

static void dectmon_help(const char *progname)
{
	printf("%s [ options ]\n"
	       "\n"
	       "Options:\n"
	       "  -c/--cluster=NAME		Bind to cluster NAME. May be specified more than once.\n"
	       "  -s/--scan			Scan for FPs and lock dynamically\n"
	       "  -m/--dump-mac=yes/no		Dump MAC layer messages (default: no)\n"
	       "  -d/--dump-dlc=yes/no		Dump DLC layer messages (default: no)\n"
	       "  -n/--dump-nwk=yes/no		Dump NWK layer messages (default: yes)\n"
	       "  -a/--audio=yes/no		Enable audio playback (default: no)\n"
	       "  -p/--auth-pin=PIN		Authentication PIN for Key Allocation\n"
	       "  -l/--logfile=NAME		Log output to file\n"
	       "  -d/--dumpfile=NAME		Dump raw frames to file\n"
	       "  -h/--help			Show this help text\n"
	       "\n",
	       progname);
}

static uint32_t opt_yesno(const char *arg, uint32_t opts, uint32_t flag)
{
	if (!strcmp(arg, "yes"))
		opts |= flag;
	else if (!strcmp(arg, "no"))
		opts &= ~flag;
	else
		pexit("invalid argument\n");

	return opts;
}

const char *auth_pin = "0000";
uint32_t dumpopts = DECTMON_DUMP_NWK;

static struct dect_handle *dectmon_open_handle(struct dect_ops *ops,
					       const char *cluster)
{
	struct dect_handle_priv *priv;
	struct dect_handle *dh;

	dh = dect_open_handle(ops, cluster);
	if (dh == NULL)
		pexit("dect_open_handle");

	priv = dect_handle_priv(dh);
	priv->cluster = cluster;
	priv->dh      = dh;

	priv->lock_timer = dect_timer_alloc(dh);
	if (priv->lock_timer == NULL)
		pexit("dect_alloc_timer");
	dect_timer_setup(priv->lock_timer, dect_lock_timer, priv);

	init_list_head(&priv->pt_list);
	list_add_tail(&priv->list, &dect_handles);

	return dh;
}

static void dectmon_close_handle(struct dect_handle_priv *priv)
{
	struct dect_handle *dh = priv->dh;

	if (dect_timer_running(priv->lock_timer))
		dect_timer_stop(dh, priv->lock_timer);
	dect_timer_free(dh, priv->lock_timer);
	dect_close_handle(dh);
}

int main(int argc, char **argv)
{
	const char *cluster[DECT_MAX_CLUSTERS] = {};
	unsigned int ncluster = 0, i;
	struct dect_handle_priv *priv, *next;
	struct dect_handle *dh;
	int optidx = 0, c;

	for (;;) {
		c = getopt_long(argc, argv, OPTSTRING, dectmon_opts, &optidx);
		if (c == -1)
			break;

		switch (c) {
		case OPT_CLUSTER:
			cluster[ncluster++] = optarg;
			break;
		case OPT_SCAN:
			scan = true;
			break;
		case OPT_DUMP_MAC:
			dumpopts = opt_yesno(optarg, dumpopts, DECTMON_DUMP_MAC);
			break;
		case OPT_DUMP_DLC:
			dumpopts = opt_yesno(optarg, dumpopts, DECTMON_DUMP_DLC);
			break;
		case OPT_DUMP_NWK:
			dumpopts = opt_yesno(optarg, dumpopts, DECTMON_DUMP_NWK);
			break;
		case OPT_AUDIO:
			dumpopts = opt_yesno(optarg, dumpopts, DECTMON_DUMP_AUDIO);
			break;
		case OPT_AUTH_PIN:
			auth_pin = optarg;
			break;
		case OPT_LOGFILE:
			logfile = fopen(optarg, "a");
			if (logfile == NULL)
				pexit("fopen");
			break;
		case OPT_DUMPFILE:
			dumpfile = fopen(optarg, "w");
			if (dumpfile == NULL)
				pexit("fopen");
			break;
		case OPT_HELP:
			dectmon_help(argv[0]);
			exit(0);
		case '?':
			dectmon_help(argv[0]);
			exit(1);
		}
	}

	dect_event_ops_init(&ops);
	dect_dummy_ops_init(&ops);

	if (dumpopts & DECTMON_DUMP_AUDIO)
		dect_audio_init();

	cli_init(stdin);
	dect_set_debug_hook(dect_debug);

	if (ncluster == 0)
		ncluster = 1;

	for (i = 0; i < ncluster; i++) {
		dh = dectmon_open_handle(&ops, cluster[i]);
		priv = dect_handle_priv(dh);

		priv->rawsk = dect_raw_open(dh);
		if (priv->rawsk == NULL)
			pexit("dect_raw_socket");

		if (scan)
			dect_llme_scan_req(dh);
	}

	dect_event_loop();

	list_for_each_entry_safe(priv, next, &dect_handles, list) {
		dect_raw_close(priv->dh, priv->rawsk);
		dectmon_close_handle(priv);
	}

	cli_exit();
	return 0;
}