aboutsummaryrefslogtreecommitdiffstats
path: root/cdr/cdr_radius.c
blob: bf613284dc903281206311fb1f6bfa139cac880c (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
/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2005, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*!
 * \file
 * \brief RADIUS CDR Support
 *
 * \author Philippe Sultan
 * \extref The Radius Client Library - http://developer.berlios.de/projects/radiusclient-ng/
 *
 * \arg See also \ref AstCDR
 * \ingroup cdr_drivers
 */

/*** MODULEINFO
	<depend>radius</depend>
 ***/

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision$")

#include <radiusclient-ng.h>

#include "asterisk/channel.h"
#include "asterisk/cdr.h"
#include "asterisk/module.h"
#include "asterisk/utils.h"

/*! ISO 8601 standard format */
#define DATE_FORMAT "%Y-%m-%d %T %z"

#define VENDOR_CODE           22736

enum {
	PW_AST_ACCT_CODE =    101,
	PW_AST_SRC =          102,
	PW_AST_DST =          103,
	PW_AST_DST_CTX =      104,
	PW_AST_CLID =         105,
	PW_AST_CHAN =         106,
	PW_AST_DST_CHAN =     107,
	PW_AST_LAST_APP =     108,
	PW_AST_LAST_DATA =    109,
	PW_AST_START_TIME =   110,
	PW_AST_ANSWER_TIME =  111,
	PW_AST_END_TIME =     112,
	PW_AST_DURATION =     113,
	PW_AST_BILL_SEC =     114,
	PW_AST_DISPOSITION =  115,
	PW_AST_AMA_FLAGS =    116,
	PW_AST_UNIQUE_ID =    117,
	PW_AST_USER_FIELD =   118
};

enum {
	/*! Log dates and times in UTC */
	RADIUS_FLAG_USEGMTIME = (1 << 0),
	/*! Log Unique ID */
	RADIUS_FLAG_LOGUNIQUEID = (1 << 1),
	/*! Log User Field */
	RADIUS_FLAG_LOGUSERFIELD = (1 << 2)
};

static const char desc[] = "RADIUS CDR Backend";
static const char name[] = "radius";
static const char cdr_config[] = "cdr.conf";

static char radiuscfg[PATH_MAX] = "/etc/radiusclient-ng/radiusclient.conf";

static struct ast_flags global_flags = { RADIUS_FLAG_USEGMTIME | RADIUS_FLAG_LOGUNIQUEID | RADIUS_FLAG_LOGUSERFIELD };

static rc_handle *rh = NULL;

static int build_radius_record(VALUE_PAIR **tosend, struct ast_cdr *cdr)
{
	int recordtype = PW_STATUS_STOP;
	struct ast_tm tm;
	char timestr[128];
	char *tmp;

	if (!rc_avpair_add(rh, tosend, PW_ACCT_STATUS_TYPE, &recordtype, 0, 0))
		return -1;

	/* Account code */
	if (!rc_avpair_add(rh, tosend, PW_AST_ACCT_CODE, &cdr->accountcode, strlen(cdr->accountcode), VENDOR_CODE))
		return -1;

 	/* Source */
	if (!rc_avpair_add(rh, tosend, PW_AST_SRC, &cdr->src, strlen(cdr->src), VENDOR_CODE))
		return -1;

 	/* Destination */
	if (!rc_avpair_add(rh, tosend, PW_AST_DST, &cdr->dst, strlen(cdr->dst), VENDOR_CODE))
		return -1;

 	/* Destination context */
	if (!rc_avpair_add(rh, tosend, PW_AST_DST_CTX, &cdr->dcontext, strlen(cdr->dcontext), VENDOR_CODE))
		return -1;

	/* Caller ID */
	if (!rc_avpair_add(rh, tosend, PW_AST_CLID, &cdr->clid, strlen(cdr->clid), VENDOR_CODE))
		return -1;

	/* Channel */
	if (!rc_avpair_add(rh, tosend, PW_AST_CHAN, &cdr->channel, strlen(cdr->channel), VENDOR_CODE))
		return -1;

	/* Destination Channel */
	if (!rc_avpair_add(rh, tosend, PW_AST_DST_CHAN, &cdr->dstchannel, strlen(cdr->dstchannel), VENDOR_CODE))
		return -1;

	/* Last Application */
	if (!rc_avpair_add(rh, tosend, PW_AST_LAST_APP, &cdr->lastapp, strlen(cdr->lastapp), VENDOR_CODE))
		return -1;

	/* Last Data */
	if (!rc_avpair_add(rh, tosend, PW_AST_LAST_DATA, &cdr->lastdata, strlen(cdr->lastdata), VENDOR_CODE))
		return -1;


	/* Start Time */
	ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
		ast_localtime(&cdr->start, &tm,
			ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
	if (!rc_avpair_add(rh, tosend, PW_AST_START_TIME, timestr, strlen(timestr), VENDOR_CODE))
		return -1;

	/* Answer Time */
	ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
		ast_localtime(&cdr->answer, &tm,
			ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
	if (!rc_avpair_add(rh, tosend, PW_AST_ANSWER_TIME, timestr, strlen(timestr), VENDOR_CODE))
		return -1;

	/* End Time */
	ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
		ast_localtime(&cdr->end, &tm,
			ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
	if (!rc_avpair_add(rh, tosend, PW_AST_END_TIME, timestr, strlen(timestr), VENDOR_CODE))
		return -1;

 	/* Duration */
	if (!rc_avpair_add(rh, tosend, PW_AST_DURATION, &cdr->duration, 0, VENDOR_CODE))
		return -1;

	/* Billable seconds */
	if (!rc_avpair_add(rh, tosend, PW_AST_BILL_SEC, &cdr->billsec, 0, VENDOR_CODE))
		return -1;

	/* Disposition */
	tmp = ast_cdr_disp2str(cdr->disposition);
	if (!rc_avpair_add(rh, tosend, PW_AST_DISPOSITION, tmp, strlen(tmp), VENDOR_CODE))
		return -1;

	/* AMA Flags */
	tmp = ast_cdr_flags2str(cdr->amaflags);
	if (!rc_avpair_add(rh, tosend, PW_AST_AMA_FLAGS, tmp, strlen(tmp), VENDOR_CODE))
		return -1;

	if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUNIQUEID)) {
		/* Unique ID */
		if (!rc_avpair_add(rh, tosend, PW_AST_UNIQUE_ID, &cdr->uniqueid, strlen(cdr->uniqueid), VENDOR_CODE))
			return -1;
	}

	if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUSERFIELD)) {
		/* append the user field */
		if (!rc_avpair_add(rh, tosend, PW_AST_USER_FIELD, &cdr->userfield, strlen(cdr->userfield), VENDOR_CODE))
			return -1;
	}

	/* Setting Acct-Session-Id & User-Name attributes for proper generation
	   of Acct-Unique-Session-Id on server side */
	/* Channel */
	if (!rc_avpair_add(rh, tosend, PW_USER_NAME, &cdr->channel, strlen(cdr->channel), 0))
		return -1;

	/* Unique ID */
	if (!rc_avpair_add(rh, tosend, PW_ACCT_SESSION_ID, &cdr->uniqueid, strlen(cdr->uniqueid), 0))
		return -1;

	return 0;
}

static int radius_log(struct ast_cdr *cdr)
{
	int result = ERROR_RC;
	VALUE_PAIR *tosend = NULL;

	if (build_radius_record(&tosend, cdr)) {
		ast_debug(1, "Unable to create RADIUS record. CDR not recorded!\n");
		goto return_cleanup;
	}

	result = rc_acct(rh, 0, tosend);
	if (result != OK_RC) {
		ast_log(LOG_ERROR, "Failed to record Radius CDR record!\n");
	}

return_cleanup:
	if (tosend) {
		rc_avpair_free(tosend);
	}

	return result;
}

static int unload_module(void)
{
	ast_cdr_unregister(name);
	if (rh) {
		rc_destroy(rh);
		rh = NULL;
	}
	return 0;
}

static int load_module(void)
{
	struct ast_config *cfg;
	struct ast_flags config_flags = { 0 };
	const char *tmp;

	if ((cfg = ast_config_load(cdr_config, config_flags)) && cfg != CONFIG_STATUS_FILEINVALID) {
		ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "usegmtime")), RADIUS_FLAG_USEGMTIME);
		ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "loguniqueid")), RADIUS_FLAG_LOGUNIQUEID);
		ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "loguserfield")), RADIUS_FLAG_LOGUSERFIELD);
		if ((tmp = ast_variable_retrieve(cfg, "radius", "radiuscfg")))
			ast_copy_string(radiuscfg, tmp, sizeof(radiuscfg));
		ast_config_destroy(cfg);
	} else
		return AST_MODULE_LOAD_DECLINE;

	/*
	 * start logging
	 *
	 * NOTE: Yes this causes a slight memory leak if the module is
	 * unloaded.  However, it is better than a crash if cdr_radius
	 * and cel_radius are both loaded.
	 */
	tmp = ast_strdup("asterisk");
	if (tmp) {
		rc_openlog((char *) tmp);
	}

	/* read radiusclient-ng config file */
	if (!(rh = rc_read_config(radiuscfg))) {
		ast_log(LOG_NOTICE, "Cannot load radiusclient-ng configuration file %s.\n", radiuscfg);
		return AST_MODULE_LOAD_DECLINE;
	}

	/* read radiusclient-ng dictionaries */
	if (rc_read_dictionary(rh, rc_conf_str(rh, "dictionary"))) {
		ast_log(LOG_NOTICE, "Cannot load radiusclient-ng dictionary file.\n");
		rc_destroy(rh);
		rh = NULL;
		return AST_MODULE_LOAD_DECLINE;
	}

	if (ast_cdr_register(name, desc, radius_log)) {
		rc_destroy(rh);
		rh = NULL;
		return AST_MODULE_LOAD_DECLINE;
	} else {
		return AST_MODULE_LOAD_SUCCESS;
	}
}

AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "RADIUS CDR Backend",
		.load = load_module,
		.unload = unload_module,
		.load_pri = AST_MODPRI_CDR_DRIVER,
	);