Add support for logging CDR recrods to a radius server (issue #6639, phsultan)

 - with contributions from miconda, jcollie, and sb
 - branch maintained by oej
Thanks everyone!


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@29094 f38db490-d61c-443f-a65b-d21fe96a405b

2 files changed, 325 insertions, 0 deletions

diff --git a/cdr/Makefile b/cdr/Makefile
index ccce4d484..d6ec161d2 100644
--- a/cdr/Makefile
+++ b/cdr/Makefile
@@ -75,6 +75,13 @@ cdr_sqlite.so: cdr_sqlite.o
 cdr_sqlite.o: cdr_sqlite.c
 	$(CC) -c -o $@ $(CFLAGS) $(SQLITE_INCLUDE) $<
 
+cdr_radius.so: cdr_radius.o
+	$(CC) $(SOLINK) -o $@ $< $(RADIUSCLIENT_LIB)
+
+cdr_radius.o: cdr_radius.c
+	$(CC) -c -o $@ $(CFLAGS) $(RADIUSCLIENT_INCLUDE) $<
+
+
 ifneq ($(wildcard .depend),)
   include .depend
 endif
diff --git a/cdr/cdr_radius.c b/cdr/cdr_radius.c
new file mode 100644
index 000000000..721edca2d
--- /dev/null
+++ b/cdr/cdr_radius.c
@@ -0,0 +1,318 @@
+/*
+ * 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
+ * 
+ * \arg See also \ref AstCDR
+ * \ingroup cdr_drivers
+ */
+
+/*** MODULEINFO
+	<depend>radiusclient</depend>
+ ***/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/types.h>
+#include <radiusclient-ng.h>
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Rev$")
+
+#include "asterisk/channel.h"
+#include "asterisk/cdr.h"
+#include "asterisk/module.h"
+#include "asterisk/logger.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 char *desc = "RADIUS CDR Backend";
+static char *name = "radius";
+static char *cdr_config = "cdr.conf";
+
+static char radiuscfg[AST_CONFIG_MAX_PATH] = "/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 **send, struct ast_cdr *cdr)
+{
+	int recordtype = PW_STATUS_STOP;
+	struct tm tm;
+	char timestr[128];
+	char *tmp;
+
+	if (!rc_avpair_add(rh, send, PW_ACCT_STATUS_TYPE, &recordtype, 0, 0)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Account code */
+	if (!rc_avpair_add(rh, send, PW_AST_ACCT_CODE, &cdr->accountcode, strlen(cdr->accountcode), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+ 	/* Source */
+	if (!rc_avpair_add(rh, send, PW_AST_SRC, &cdr->src, strlen(cdr->src), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+ 	/* Destination */
+	if (!rc_avpair_add(rh, send, PW_AST_DST, &cdr->dst, strlen(cdr->dst), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+ 	/* Destination context */
+	if (!rc_avpair_add(rh, send, PW_AST_DST_CTX, &cdr->dcontext, strlen(cdr->dcontext), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Caller ID */
+	if (!rc_avpair_add(rh, send, PW_AST_CLID, &cdr->clid, strlen(cdr->clid), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Channel */
+	if (!rc_avpair_add(rh, send, PW_AST_CHAN, &cdr->channel, strlen(cdr->channel), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Destination Channel */
+	if (!rc_avpair_add(rh, send, PW_AST_DST_CHAN, &cdr->dstchannel, strlen(cdr->dstchannel), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Last Application */
+	if (!rc_avpair_add(rh, send, PW_AST_LAST_APP, &cdr->lastapp, strlen(cdr->lastapp), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Last Data */
+	if (!rc_avpair_add(rh, send, PW_AST_LAST_DATA, &cdr->lastdata, strlen(cdr->lastdata), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+
+	/* Start Time */
+	if (ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME))
+		gmtime_r(&(cdr->start.tv_sec), &tm);
+	else
+		localtime_r(&(cdr->start.tv_sec), &tm);
+	strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
+	if (!rc_avpair_add(rh, send, PW_AST_START_TIME, timestr, strlen(timestr), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Answer Time */
+	if (ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME))
+		gmtime_r(&(cdr->answer.tv_sec), &tm);
+	else
+		localtime_r(&(cdr->answer.tv_sec), &tm);
+	strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
+	if (!rc_avpair_add(rh, send, PW_AST_ANSWER_TIME, timestr, strlen(timestr), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* End Time */
+	if (ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME))
+		gmtime_r(&(cdr->end.tv_sec), &tm);
+	else
+		localtime_r(&(cdr->end.tv_sec), &tm);
+	strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
+	if (!rc_avpair_add(rh, send, PW_AST_END_TIME, timestr, strlen(timestr), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+ 	/* Duration */ 
+	if (!rc_avpair_add(rh, send, PW_AST_DURATION, &cdr->duration, 0, VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Billable seconds */
+	if (!rc_avpair_add(rh, send, PW_AST_BILL_SEC, &cdr->billsec, 0, VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* Disposition */
+	tmp = ast_cdr_disp2str(cdr->disposition);
+	if (!rc_avpair_add(rh, send, PW_AST_DISPOSITION, tmp, strlen(tmp), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	/* AMA Flags */
+	tmp = ast_cdr_flags2str(cdr->amaflags);
+	if (!rc_avpair_add(rh, send, PW_AST_AMA_FLAGS, tmp, strlen(tmp), VENDOR_CODE)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+
+	if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUNIQUEID)) {
+		/* Unique ID */
+		if (!rc_avpair_add(rh, send, PW_AST_UNIQUE_ID, &cdr->uniqueid, strlen(cdr->uniqueid), VENDOR_CODE)) {
+			ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+			return -1;
+		}
+	}
+
+	if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUSERFIELD)) {
+		/* append the user field */
+		if (!rc_avpair_add(rh, send, PW_AST_USER_FIELD, &cdr->userfield, strlen(cdr->userfield), VENDOR_CODE)) {
+			ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+			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, send, PW_USER_NAME, &cdr->channel, strlen(cdr->channel), 0)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+	/* Unique ID */
+	if (!rc_avpair_add(rh, send, PW_ACCT_SESSION_ID, &cdr->uniqueid, strlen(cdr->uniqueid), 0)) {
+		ast_log(LOG_WARNING, "Failed to add VALUE PAIR. RADIUS CDR not recorded!\n");
+		return -1;
+	}
+	return 0;
+}
+
+static int radius_log(struct ast_cdr *cdr)
+{
+	int result = ERROR_RC;
+	VALUE_PAIR *send = NULL;
+
+	if (build_radius_record(&send, cdr)) {
+		ast_log(LOG_WARNING, "Unable to create RADIUS record. CDR not recorded!\n");
+		return result;
+	}
+	
+	result = rc_acct(rh, 0, send);
+	if (result != OK_RC)
+		ast_log(LOG_ERROR, "Failed to record Radius CDR record!\n");
+
+	return result;
+}
+
+static const char *description(void)
+{
+	return desc;
+}
+
+static int unload_module(void *mod)
+{
+	ast_cdr_unregister(name);
+	return 0;
+}
+
+static int load_module(void *mod)
+{
+	struct ast_config *cfg;
+	char *tmp;
+
+	if ((cfg = ast_config_load(cdr_config))) {
+		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);
+	}
+	
+	/* start logging */
+	rc_openlog("asterisk");
+
+	/* 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 -1;
+	}
+
+	/* 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");
+		return -1;
+	}
+	
+	return ast_cdr_register(name, desc, radius_log);
+}
+
+static const char *key(void)
+{
+	return ASTERISK_GPL_KEY;
+}
+
+STD_MOD(MOD_0, NULL, NULL, NULL);