262 lines
6.7 KiB
C
262 lines
6.7 KiB
C
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief RADIUS CEL Support
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* \author Philippe Sultan
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* The Radius Client Library - http://developer.berlios.de/projects/radiusclient-ng/
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* \ingroup cel_drivers
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*/
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/*** MODULEINFO
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<depend>radius</depend>
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<support_level>extended</support_level>
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***/
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#include "asterisk.h"
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#include RADIUS_HEADER_STR
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#include "asterisk/channel.h"
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#include "asterisk/cel.h"
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#include "asterisk/module.h"
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#include "asterisk/logger.h"
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#include "asterisk/utils.h"
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#include "asterisk/options.h"
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/*! ISO 8601 standard format */
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#define DATE_FORMAT "%Y-%m-%d %T %z"
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#define VENDOR_CODE 22736
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enum {
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PW_AST_ACCT_CODE = 101,
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PW_AST_CIDNUM = 102,
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PW_AST_CIDNAME = 103,
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PW_AST_CIDANI = 104,
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PW_AST_CIDRDNIS = 105,
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PW_AST_CIDDNID = 106,
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PW_AST_EXTEN = 107,
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PW_AST_CONTEXT = 108,
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PW_AST_CHANNAME = 109,
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PW_AST_APPNAME = 110,
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PW_AST_APPDATA = 111,
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PW_AST_EVENT_TIME = 112,
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PW_AST_AMA_FLAGS = 113,
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PW_AST_UNIQUE_ID = 114,
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PW_AST_USER_NAME = 115,
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PW_AST_LINKED_ID = 116,
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};
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enum {
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/*! Log dates and times in UTC */
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RADIUS_FLAG_USEGMTIME = (1 << 0),
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/*! Log Unique ID */
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RADIUS_FLAG_LOGUNIQUEID = (1 << 1),
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/*! Log User Field */
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RADIUS_FLAG_LOGUSERFIELD = (1 << 2)
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};
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static char *cel_config = "cel.conf";
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#ifdef FREERADIUS_CLIENT
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static char radiuscfg[PATH_MAX] = "/etc/radiusclient/radiusclient.conf";
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#else
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static char radiuscfg[PATH_MAX] = "/etc/radiusclient-ng/radiusclient.conf";
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#endif
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static struct ast_flags global_flags = { RADIUS_FLAG_USEGMTIME | RADIUS_FLAG_LOGUNIQUEID | RADIUS_FLAG_LOGUSERFIELD };
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static rc_handle *rh = NULL;
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#define RADIUS_BACKEND_NAME "CEL Radius Logging"
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#define ADD_VENDOR_CODE(x,y) (rc_avpair_add(rh, send, x, (void *)y, strlen(y), VENDOR_CODE))
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static int build_radius_record(VALUE_PAIR **send, struct ast_cel_event_record *record)
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{
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int recordtype = PW_STATUS_STOP;
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struct ast_tm tm;
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char timestr[128];
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char *amaflags;
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if (!rc_avpair_add(rh, send, PW_ACCT_STATUS_TYPE, &recordtype, 0, 0)) {
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return -1;
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}
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/* Account code */
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if (!ADD_VENDOR_CODE(PW_AST_ACCT_CODE, record->account_code)) {
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return -1;
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}
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/* Source */
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if (!ADD_VENDOR_CODE(PW_AST_CIDNUM, record->caller_id_num)) {
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return -1;
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}
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/* Destination */
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if (!ADD_VENDOR_CODE(PW_AST_EXTEN, record->extension)) {
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return -1;
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}
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/* Destination context */
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if (!ADD_VENDOR_CODE(PW_AST_CONTEXT, record->context)) {
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return -1;
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}
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/* Caller ID */
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if (!ADD_VENDOR_CODE(PW_AST_CIDNAME, record->caller_id_name)) {
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return -1;
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}
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/* Caller ID ani */
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if (!ADD_VENDOR_CODE(PW_AST_CIDANI, record->caller_id_ani)) {
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return -1;
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}
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/* Caller ID rdnis */
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if (!ADD_VENDOR_CODE(PW_AST_CIDRDNIS, record->caller_id_rdnis)) {
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return -1;
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}
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/* Caller ID dnid */
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if (!ADD_VENDOR_CODE(PW_AST_CIDDNID, record->caller_id_dnid)) {
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return -1;
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}
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/* Channel */
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if (!ADD_VENDOR_CODE(PW_AST_CHANNAME, record->channel_name)) {
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return -1;
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}
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/* Last Application */
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if (!ADD_VENDOR_CODE(PW_AST_APPNAME, record->application_name)) {
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return -1;
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}
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/* Last Data */
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if (!ADD_VENDOR_CODE(PW_AST_APPDATA, record->application_data)) {
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return -1;
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}
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/* Event Time */
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ast_localtime(&record->event_time, &tm,
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ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL);
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ast_strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
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if (!rc_avpair_add(rh, send, PW_AST_EVENT_TIME, timestr, strlen(timestr), VENDOR_CODE)) {
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return -1;
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}
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/* AMA Flags */
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amaflags = ast_strdupa(ast_channel_amaflags2string(record->amaflag));
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if (!rc_avpair_add(rh, send, PW_AST_AMA_FLAGS, amaflags, strlen(amaflags), VENDOR_CODE)) {
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return -1;
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}
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if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUNIQUEID)) {
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/* Unique ID */
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if (!ADD_VENDOR_CODE(PW_AST_UNIQUE_ID, record->unique_id)) {
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return -1;
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}
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}
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/* LinkedID */
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if (!ADD_VENDOR_CODE(PW_AST_LINKED_ID, record->linked_id)) {
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return -1;
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}
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/* Setting Acct-Session-Id & User-Name attributes for proper generation
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of Acct-Unique-Session-Id on server side */
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/* Channel */
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if (!rc_avpair_add(rh, send, PW_USER_NAME, (void *)record->channel_name,
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strlen(record->channel_name), 0)) {
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return -1;
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}
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return 0;
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}
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static void radius_log(struct ast_event *event)
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{
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int result = ERROR_RC;
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VALUE_PAIR *send = NULL;
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struct ast_cel_event_record record = {
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.version = AST_CEL_EVENT_RECORD_VERSION,
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};
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if (ast_cel_fill_record(event, &record)) {
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return;
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}
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if (build_radius_record(&send, &record)) {
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ast_debug(1, "Unable to create RADIUS record. CEL not recorded!\n");
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goto return_cleanup;
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}
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result = rc_acct(rh, 0, send);
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if (result != OK_RC) {
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ast_log(LOG_ERROR, "Failed to record Radius CEL record!\n");
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}
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return_cleanup:
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if (send) {
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rc_avpair_free(send);
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}
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}
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static int unload_module(void)
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{
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ast_cel_backend_unregister(RADIUS_BACKEND_NAME);
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if (rh) {
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rc_destroy(rh);
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rh = NULL;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int load_module(void)
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{
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struct ast_config *cfg;
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struct ast_flags config_flags = { 0 };
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const char *tmp;
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if ((cfg = ast_config_load(cel_config, config_flags))) {
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ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "usegmtime")), RADIUS_FLAG_USEGMTIME);
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if ((tmp = ast_variable_retrieve(cfg, "radius", "radiuscfg"))) {
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ast_copy_string(radiuscfg, tmp, sizeof(radiuscfg));
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}
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ast_config_destroy(cfg);
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} else {
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return AST_MODULE_LOAD_DECLINE;
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}
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/* read radiusclient-ng config file */
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if (!(rh = rc_read_config(radiuscfg))) {
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ast_log(LOG_NOTICE, "Cannot load radiusclient-ng configuration file %s.\n", radiuscfg);
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return AST_MODULE_LOAD_DECLINE;
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}
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/* read radiusclient-ng dictionaries */
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if (rc_read_dictionary(rh, rc_conf_str(rh, "dictionary"))) {
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ast_log(LOG_NOTICE, "Cannot load radiusclient-ng dictionary file.\n");
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rc_destroy(rh);
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rh = NULL;
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return AST_MODULE_LOAD_DECLINE;
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}
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if (ast_cel_backend_register(RADIUS_BACKEND_NAME, radius_log)) {
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rc_destroy(rh);
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rh = NULL;
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return AST_MODULE_LOAD_DECLINE;
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} else {
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return AST_MODULE_LOAD_SUCCESS;
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}
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "RADIUS CEL Backend",
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.support_level = AST_MODULE_SUPPORT_EXTENDED,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_CDR_DRIVER,
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.requires = "cel",
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);
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