This patch is the initial push to update Asterisk's CDR engine for the new bridging framework. This patch guts the existing CDR engine and builds the new on top of messages coming across Stasis. As changes in channel state and bridge state are detected, CDRs are built and dispatched accordingly. This fundamentally changes CDRs in a few ways. (1) CDRs are now *very* reflective of the actual state of channels and bridges. This means CDRs track well with what an actual channel is doing - which is useful in transfer scenarios (which were previously difficult to pin down). It does, however, mean that CDRs cannot be 'fooled'. Previous behavior in Asterisk allowed for CDR applications, channels, and other properties to be spoofed in parts of the code - this no longer works. (2) CDRs have defined behavior in multi-party scenarios. This behavior will not be what everyone wants, but it is a defined behavior and as such, it is predictable. (3) The CDR manipulation functions and applications have been overhauled. Major changes have been made to ResetCDR and ForkCDR in particular. Many of the options for these two applications no longer made any sense with the new framework and the (slightly) more immutable nature of CDRs. There are a plethora of other changes. For a full description of CDR behavior, see the CDR specification on the Asterisk wiki. (closes issue ASTERISK-21196) Review: https://reviewboard.asterisk.org/r/2486/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391947 65c4cc65-6c06-0410-ace0-fbb531ad65f3
297 lines
8.2 KiB
C
297 lines
8.2 KiB
C
/*
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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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/*!
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* \file
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* \brief RADIUS CDR Support
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*
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* \author Philippe Sultan
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* The Radius Client Library
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* http://developer.berlios.de/projects/radiusclient-ng/
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*
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* \arg See also \ref AstCDR
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* \ingroup cdr_drivers
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*/
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/*! \li \ref cdr_radius.c uses the configuration file \ref cdr.conf
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* \addtogroup configuration_file Configuration Files
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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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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <radiusclient-ng.h>
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#include "asterisk/channel.h"
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#include "asterisk/cdr.h"
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#include "asterisk/module.h"
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#include "asterisk/utils.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_SRC = 102,
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PW_AST_DST = 103,
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PW_AST_DST_CTX = 104,
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PW_AST_CLID = 105,
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PW_AST_CHAN = 106,
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PW_AST_DST_CHAN = 107,
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PW_AST_LAST_APP = 108,
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PW_AST_LAST_DATA = 109,
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PW_AST_START_TIME = 110,
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PW_AST_ANSWER_TIME = 111,
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PW_AST_END_TIME = 112,
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PW_AST_DURATION = 113,
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PW_AST_BILL_SEC = 114,
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PW_AST_DISPOSITION = 115,
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PW_AST_AMA_FLAGS = 116,
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PW_AST_UNIQUE_ID = 117,
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PW_AST_USER_FIELD = 118
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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 const char desc[] = "RADIUS CDR Backend";
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static const char name[] = "radius";
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static const char cdr_config[] = "cdr.conf";
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static char radiuscfg[PATH_MAX] = "/etc/radiusclient-ng/radiusclient.conf";
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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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static int build_radius_record(VALUE_PAIR **tosend, struct ast_cdr *cdr)
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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 *tmp;
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if (!rc_avpair_add(rh, tosend, PW_ACCT_STATUS_TYPE, &recordtype, 0, 0))
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return -1;
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/* Account code */
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if (!rc_avpair_add(rh, tosend, PW_AST_ACCT_CODE, &cdr->accountcode, strlen(cdr->accountcode), VENDOR_CODE))
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return -1;
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/* Source */
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if (!rc_avpair_add(rh, tosend, PW_AST_SRC, &cdr->src, strlen(cdr->src), VENDOR_CODE))
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return -1;
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/* Destination */
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if (!rc_avpair_add(rh, tosend, PW_AST_DST, &cdr->dst, strlen(cdr->dst), VENDOR_CODE))
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return -1;
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/* Destination context */
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if (!rc_avpair_add(rh, tosend, PW_AST_DST_CTX, &cdr->dcontext, strlen(cdr->dcontext), VENDOR_CODE))
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return -1;
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/* Caller ID */
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if (!rc_avpair_add(rh, tosend, PW_AST_CLID, &cdr->clid, strlen(cdr->clid), VENDOR_CODE))
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return -1;
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/* Channel */
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if (!rc_avpair_add(rh, tosend, PW_AST_CHAN, &cdr->channel, strlen(cdr->channel), VENDOR_CODE))
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return -1;
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/* Destination Channel */
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if (!rc_avpair_add(rh, tosend, PW_AST_DST_CHAN, &cdr->dstchannel, strlen(cdr->dstchannel), VENDOR_CODE))
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return -1;
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/* Last Application */
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if (!rc_avpair_add(rh, tosend, PW_AST_LAST_APP, &cdr->lastapp, strlen(cdr->lastapp), VENDOR_CODE))
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return -1;
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/* Last Data */
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if (!rc_avpair_add(rh, tosend, PW_AST_LAST_DATA, &cdr->lastdata, strlen(cdr->lastdata), VENDOR_CODE))
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return -1;
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/* Start Time */
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ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
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ast_localtime(&cdr->start, &tm,
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ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
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if (!rc_avpair_add(rh, tosend, PW_AST_START_TIME, timestr, strlen(timestr), VENDOR_CODE))
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return -1;
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/* Answer Time */
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ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
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ast_localtime(&cdr->answer, &tm,
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ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
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if (!rc_avpair_add(rh, tosend, PW_AST_ANSWER_TIME, timestr, strlen(timestr), VENDOR_CODE))
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return -1;
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/* End Time */
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ast_strftime(timestr, sizeof(timestr), DATE_FORMAT,
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ast_localtime(&cdr->end, &tm,
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ast_test_flag(&global_flags, RADIUS_FLAG_USEGMTIME) ? "GMT" : NULL));
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if (!rc_avpair_add(rh, tosend, PW_AST_END_TIME, timestr, strlen(timestr), VENDOR_CODE))
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return -1;
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/* Duration */
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if (!rc_avpair_add(rh, tosend, PW_AST_DURATION, &cdr->duration, 0, VENDOR_CODE))
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return -1;
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/* Billable seconds */
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if (!rc_avpair_add(rh, tosend, PW_AST_BILL_SEC, &cdr->billsec, 0, VENDOR_CODE))
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return -1;
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/* Disposition */
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tmp = ast_strdupa(ast_cdr_disp2str(cdr->disposition));
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if (!rc_avpair_add(rh, tosend, PW_AST_DISPOSITION, tmp, strlen(tmp), VENDOR_CODE))
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return -1;
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/* AMA Flags */
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tmp = ast_strdupa(ast_channel_amaflags2string(cdr->amaflags));
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if (!rc_avpair_add(rh, tosend, PW_AST_AMA_FLAGS, tmp, strlen(tmp), VENDOR_CODE))
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return -1;
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if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUNIQUEID)) {
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/* Unique ID */
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if (!rc_avpair_add(rh, tosend, PW_AST_UNIQUE_ID, &cdr->uniqueid, strlen(cdr->uniqueid), VENDOR_CODE))
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return -1;
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}
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if (ast_test_flag(&global_flags, RADIUS_FLAG_LOGUSERFIELD)) {
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/* append the user field */
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if (!rc_avpair_add(rh, tosend, PW_AST_USER_FIELD, &cdr->userfield, strlen(cdr->userfield), VENDOR_CODE))
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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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*/
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/* Channel */
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if (!rc_avpair_add(rh, tosend, PW_USER_NAME, &cdr->channel, strlen(cdr->channel), 0))
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return -1;
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/* Unique ID */
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if (!rc_avpair_add(rh, tosend, PW_ACCT_SESSION_ID, &cdr->uniqueid, strlen(cdr->uniqueid), 0))
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return -1;
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return 0;
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}
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static int radius_log(struct ast_cdr *cdr)
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{
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int result = ERROR_RC;
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VALUE_PAIR *tosend = NULL;
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if (build_radius_record(&tosend, cdr)) {
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ast_debug(1, "Unable to create RADIUS record. CDR not recorded!\n");
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goto return_cleanup;
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}
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result = rc_acct(rh, 0, tosend);
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if (result != OK_RC) {
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ast_log(LOG_ERROR, "Failed to record Radius CDR record!\n");
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}
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return_cleanup:
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if (tosend) {
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rc_avpair_free(tosend);
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}
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return result;
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}
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static int unload_module(void)
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{
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ast_cdr_unregister(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 0;
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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(cdr_config, config_flags)) && cfg != CONFIG_STATUS_FILEINVALID) {
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ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "usegmtime")), RADIUS_FLAG_USEGMTIME);
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ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "loguniqueid")), RADIUS_FLAG_LOGUNIQUEID);
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ast_set2_flag(&global_flags, ast_true(ast_variable_retrieve(cfg, "radius", "loguserfield")), RADIUS_FLAG_LOGUSERFIELD);
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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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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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* start logging
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*
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* NOTE: Yes this causes a slight memory leak if the module is
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* unloaded. However, it is better than a crash if cdr_radius
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* and cel_radius are both loaded.
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*/
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tmp = ast_strdup("asterisk");
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if (tmp) {
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rc_openlog((char *) tmp);
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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_cdr_register(name, desc, 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 CDR Backend",
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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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);
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