/
acc_logic.c
1419 lines (1152 loc) · 35.1 KB
/
acc_logic.c
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/*
* Accounting module logic
*
* Copyright (C) 2001-2003 FhG Fokus
* Copyright (C) 2006 Voice Sistem SRL
*
* This file is part of opensips, a free SIP server.
*
* opensips is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* opensips is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* History:
* -------
* 2006-09-19 forked from the acc_mod.c file during a big re-structuring
* of acc module (bogdan)
*/
#include <stdio.h>
#include <string.h>
#include "../../dprint.h"
#include "../../parser/parse_from.h"
#include "../../parser/parse_content.h"
#include "../tm/tm_load.h"
#include "../rr/api.h"
#include "../dialog/dlg_load.h"
#include "../dialog/dlg_hash.h"
#include "../../aaa/aaa.h"
#include "../../mod_fix.h"
#include "../../dprint.h"
#include "acc.h"
#include "acc_mod.h"
#include "acc_logic.h"
#include "acc_extra.h"
#include "acc_vars.h"
extern struct tm_binds tmb;
extern struct rr_binds rrb;
extern str flags_str;
extern str table_str;
extern str acc_ctx_str;
extern str extra_str;
extern str leg_str;
extern str created_str;
extern str acc_created_avp_name;
extern int acc_created_avp_id;
extern int acc_flags_ctx_idx;
extern int acc_tm_flags_ctx_idx;
extern tag_t* extra_tags;
extern int extra_tgs_len;
extern tag_t* leg_tags;
extern int leg_tgs_len;
struct acc_enviroment acc_env;
static query_list_t *acc_ins_list = NULL;
static query_list_t *mc_ins_list = NULL;
static int is_cdr_enabled=0;
#define is_acc_flag_set(_mask, _type, _flag) ( _mask & ((_type * _flag)))
#define is_log_flag_on(_mask, _flag) is_acc_flag_set(_mask, DO_ACC_LOG, _flag)
#define is_log_acc_on(_mask) is_log_flag_on(_mask, DO_ACC)
#define is_log_cdr_on(_mask) is_log_flag_on(_mask, DO_ACC_CDR)
#define is_log_mc_on(_mask) is_log_flag_on(_mask, DO_ACC_MISSED)
#define is_log_failed_on(_mask) is_log_flag_on(_mask, DO_ACC_FAILED)
#define is_aaa_flag_on(_mask, _flag) is_acc_flag_set(_mask, DO_ACC_AAA, _flag)
#define is_aaa_acc_on(_mask) is_aaa_flag_on(_mask, DO_ACC)
#define is_aaa_cdr_on(_mask) is_aaa_flag_on(_mask, DO_ACC_CDR)
#define is_aaa_mc_on(_mask) is_aaa_flag_on(_mask, DO_ACC_MISSED)
#define is_aaa_failed_on(_mask) is_aaa_flag_on(_mask, DO_ACC_FAILED)
#define is_db_flag_on(_mask, _flag) is_acc_flag_set(_mask, DO_ACC_DB, _flag)
#define is_db_acc_on(_mask) is_db_flag_on(_mask, DO_ACC)
#define is_db_cdr_on(_mask) is_db_flag_on(_mask, DO_ACC_CDR)
#define is_db_mc_on(_mask) is_db_flag_on(_mask, DO_ACC_MISSED)
#define is_db_failed_on(_mask) is_db_flag_on(_mask, DO_ACC_FAILED)
#define is_evi_flag_on(_mask, _flag) is_acc_flag_set(_mask, DO_ACC_EVI, _flag)
#define is_evi_acc_on(_mask) is_evi_flag_on(_mask, DO_ACC)
#define is_evi_cdr_on(_mask) is_evi_flag_on(_mask, DO_ACC_CDR)
#define is_evi_mc_on(_mask) is_evi_flag_on(_mask, DO_ACC_MISSED)
#define is_evi_failed_on(_mask) is_evi_flag_on(_mask, DO_ACC_FAILED)
#define is_acc_on(_mask) \
( (is_log_acc_on(_mask)) || (is_db_acc_on(_mask)) \
|| (is_aaa_acc_on(_mask)) || (is_evi_acc_on(_mask)) )
#define is_cdr_acc_on(_mask) (is_log_cdr_on(_mask) || \
is_aaa_cdr_on(_mask) || is_db_cdr_on(_mask) || \
is_evi_cdr_on(_mask))
#define is_mc_acc_on(_mask) (is_log_mc_on(_mask) || \
is_aaa_mc_on(_mask) || is_db_mc_on(_mask) || \
is_evi_mc_on(_mask))
#define is_failed_acc_on(_mask) (is_log_failed_on(_mask) || \
is_aaa_failed_on(_mask) || is_db_failed_on(_mask) || \
is_evi_failed_on(_mask))
#define is_dialog_context(_mask) ((_mask)&ACC_DIALOG_CONTEXT)
#define set_cdr_values_registered(_mask) \
(_mask) |= ACC_CDR_REGISTERED;
#define set_dlg_cb_used(_mask) \
(_mask) |= ACC_DLG_CB_USED;
#define was_dlg_cb_used(_mask) (_mask&ACC_DLG_CB_USED)
#define cdr_values_registered(_mask) ((_mask)&ACC_CDR_REGISTERED)
#define acc_ref_unsafe(_ctx, _val) (_ctx)->ref_no += (_val)
#define acc_ref_ex(_ctx, _val) \
do { \
accX_lock(&(_ctx)->lock); \
acc_ref_unsafe(_ctx, _val); \
accX_unlock(&(_ctx)->lock); \
} while(0)
#define acc_unref_ex(_ctx, _val) \
do { \
accX_lock(&(_ctx)->lock); \
acc_ref_unsafe(_ctx, -(_val)); \
if ((_ctx)->ref_no == 0) {\
accX_unlock(&(_ctx)->lock); \
free_acc_ctx(_ctx); \
} else { \
if ((_ctx)->ref_no < 0) \
LM_BUG("ref=%d ctx=%p gone negative! (%s:%d)\n", \
(_ctx)->ref_no, (_ctx), __FILE__, __LINE__); \
accX_unlock(&(_ctx)->lock); \
} \
} while(0)
#define acc_ref(_ctx) acc_ref_ex(_ctx, 1)
#define acc_unref(_ctx) acc_unref_ex(_ctx, 1)
#define reset_flags(_flags, _flags_to_reset) \
_flags &= ~_flags_to_reset;
#define skip_cancel(_rq) \
(((_rq)->REQ_METHOD==METHOD_CANCEL) && report_cancels==0)
static void tmcb_func( struct cell* t, int type, struct tmcb_params *ps );
static void acc_dlg_ended(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params);
static void acc_dlg_onwrite(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params);
static void acc_cdr_cb( struct cell* t, int type, struct tmcb_params *ps );
static inline void free_extra_array(extra_value_t* array, int array_len)
{
int i;
for (i=0; i < array_len; i++) {
if (array[i].value.s)
shm_free(array[i].value.s);
}
shm_free(array);
}
static inline void free_acc_ctx(acc_ctx_t* ctx)
{
int i;
str ctxstr;
struct dlg_cell *dlg;
if (ctx->extra_values)
free_extra_array(ctx->extra_values, extra_tgs_len);
if (ctx->leg_values) {
for (i=0; i<ctx->legs_no; i++) {
free_extra_array(ctx->leg_values[i], leg_tgs_len);
}
shm_free(ctx->leg_values);
}
if (ctx->acc_table.s)
shm_free(ctx->acc_table.s);
shm_free(ctx);
/* also cleanup dialog */
ctx = 0;
ctxstr.len = sizeof(ctx);
ctxstr.s = (char *)&ctx;
dlg = dlg_api.get_dlg ? dlg_api.get_dlg() : NULL;
if (dlg && dlg_api.store_dlg_value(dlg, &acc_ctx_str, &ctxstr) < 0)
LM_ERR("cannot reset context in dialog %p!\n", dlg);
}
static inline struct hdr_field* get_rpl_to( struct cell *t,
struct sip_msg *reply)
{
if (reply==FAKED_REPLY || !reply || !reply->to)
return t->uas.request->to;
else
return reply->to;
}
acc_ctx_t* try_fetch_ctx(void)
{
acc_ctx_t* ret=NULL;
str ctx_s;
struct cell* t;
struct dlg_cell* dlg;
t = tmb.t_gett ? tmb.t_gett() : NULL;
t = t==T_UNDEFINED ? NULL : t;
if ((ret = ACC_GET_CTX()) == NULL) {
t = tmb.t_gett ? tmb.t_gett() : NULL;
t = (t==T_UNDEFINED) ? NULL : t;
dlg = dlg_api.get_dlg ? dlg_api.get_dlg() : NULL;
/* search the flags in transaction context */
if (t && (ret=ACC_GET_TM_CTX(t))==NULL) {
/* try fetching the context from dialog only if dialog exists */
if (!dlg ||
dlg_api.fetch_dlg_value(dlg, &acc_ctx_str, &ctx_s, 0) < 0) {
/* can't find the flags anywhere */
return NULL;
} else { /* found them in dialog; set in the processing context
* and in the transaction */
/* set the flags in transaction and processing context */
memcpy(&ret, ctx_s.s, sizeof(acc_ctx_t *));
if (!ret)
return NULL;
acc_ref_ex(ret, 2);
ACC_PUT_TM_CTX(t, ret);
ACC_PUT_CTX(ret);
}
} else if (ret) { /* we have the flags in transaction */
/* in transaction; put them in dialog(if possible) and in processing context */
acc_ref(ret);
ACC_PUT_CTX(ret);
if (dlg) {
ctx_s.s = (char *)&ret;
ctx_s.len = sizeof(acc_ctx_t *);
}
} else if (dlg) { /* no (flags in) transaction; search only in dialog*/
if (dlg_api.fetch_dlg_value(dlg, &acc_ctx_str, &ctx_s, 0) < 0) {
/* can't find the flags anywhere */
return NULL;
} else {
/* found them in dialog; set in processing context */
memcpy(&ret, ctx_s.s, sizeof(acc_ctx_t *));
if (!ret)
return NULL;
if (t) {
acc_ref_ex(ret, 2); /* ref twice - for local and tm ctx */
ACC_PUT_TM_CTX(t, ret);
} else
acc_ref(ret); /* ref only once, for local ctx */
ACC_PUT_CTX(ret);
}
}
}
return ret;
}
static inline void env_set_to(struct hdr_field *to)
{
acc_env.to = to;
}
static inline void env_set_text(char *p, int len)
{
acc_env.text.s = p;
acc_env.text.len = len;
}
static inline void env_set_code_status( int code, struct sip_msg *reply)
{
static char code_buf[INT2STR_MAX_LEN];
acc_env.code = code;
if (reply==FAKED_REPLY || reply==NULL) {
/* code */
acc_env.code_s.s =
int2bstr((unsigned long)code, code_buf, &acc_env.code_s.len);
/* reason */
acc_env.reason.s = error_text(code);
acc_env.reason.len = strlen(acc_env.reason.s);
} else {
acc_env.code_s = reply->first_line.u.reply.status;
acc_env.reason = reply->first_line.u.reply.reason;
}
}
static inline void env_set_comment(struct acc_param *accp)
{
acc_env.code = accp->code;
acc_env.code_s = accp->code_s;
acc_env.reason = accp->reason;
}
static inline void env_set_event(event_id_t ev)
{
acc_env.event = ev;
}
static inline int acc_preparse_req(struct sip_msg *req)
{
if ( (parse_headers(req,HDR_CALLID_F|HDR_CSEQ_F|HDR_FROM_F|HDR_TO_F,0)<0)
|| (parse_from_header(req)<0 ) ) {
LM_ERR("failed to preparse request\n");
return -1;
}
return 0;
}
int w_acc_log_request(struct sip_msg *rq, str* comment)
{
struct acc_param accp;
if (acc_preparse_req(rq)<0)
return -1;
acc_comm_to_acc_param(rq, comment, &accp);
env_set_to( rq->to );
env_set_comment( &accp );
env_set_text( ACC_REQUEST, ACC_REQUEST_LEN);
return acc_log_request( rq, NULL, 0);
}
int w_acc_aaa_request(struct sip_msg *rq, str* comment)
{
struct acc_param accp;
if (!aaa_proto_url) {
LM_ERR("aaa support not configured\n");
return -1;
}
if (acc_preparse_req(rq)<0)
return -1;
acc_comm_to_acc_param(rq, comment, &accp);
env_set_to( rq->to );
env_set_comment( &accp );
return acc_aaa_request( rq, NULL, 0);
}
int w_acc_db_request(struct sip_msg *rq, str* comment, str *table)
{
struct acc_param accp;
if (!table) {
LM_ERR("db support not configured\n");
return -1;
}
if (acc_preparse_req(rq)<0)
return -1;
acc_comm_to_acc_param(rq, comment, &accp);
env_set_to( rq->to );
env_set_comment( &accp );
env_set_text(table->s, table->len);
if (str_strcmp(table, &db_table_mc) == 0) {
return acc_db_request(rq, NULL, &mc_ins_list, 0);
}
if (str_strcmp(table, &db_table_acc) == 0) {
return acc_db_request(rq, NULL, &acc_ins_list, 0);
}
return acc_db_request( rq, NULL,NULL, 0);
}
int w_acc_evi_request(struct sip_msg *rq, str* comment)
{
struct acc_param accp;
if (acc_preparse_req(rq)<0)
return -1;
acc_comm_to_acc_param(rq, comment, &accp);
env_set_to( rq->to );
env_set_comment( &accp );
#if 0
if (is_cdr_acc_on(rq) && is_evi_acc_on(rq)) {
env_set_event(acc_cdr_event);
} else if (is_evi_acc_on(rq) && acc_env.code < 300) {
env_set_event(acc_event);
} else if (is_evi_mc_on(rq)) {
env_set_event(acc_missed_event);
} else {
LM_WARN("evi request flags not set\n");
return 1;
}
#endif
if (acc_env.code < 300) {
env_set_event(acc_event);
} else {
env_set_event(acc_missed_event);
}
return acc_evi_request( rq, NULL, 0);
}
int acc_comm_to_acc_param(struct sip_msg* rq, str* comm, struct acc_param* accp)
{
accp->reason = *comm;
if (accp->reason.len>=3 && isdigit((int)comm->s[0])
&& isdigit((int)comm->s[1]) && isdigit((int)comm->s[2]) ) {
/* reply code is in the comment string */
accp->code = (comm->s[0]-'0')*100 + (comm->s[1]-'0')*10 + (comm->s[2]-'0');
accp->code_s.s = comm->s;
accp->code_s.len = 3;
accp->reason.s += 3;
accp->reason.len -= 3;
for( ; isspace((int)accp->reason.s[0]) ; accp->reason.s++,accp->reason.len-- );
} else {
/* no reply code */
accp->code = 0;
accp->code_s.s = NULL;
accp->code_s.len = 0;
}
/*Default comment if none supplied*/
if (accp->reason.len <= 0) {
accp->reason.s = error_text(accp->code);
accp->reason.len = strlen(accp->reason.s);
}
return 0;
}
static inline int has_totag(struct sip_msg *msg)
{
/* check if it has to tag */
if ( (!msg->to && parse_headers(msg, HDR_TO_F,0)<0) || !msg->to ) {
LM_ERR("bad request or missing TO hdr :-/\n");
return 0;
}
if (get_to(msg)->tag_value.s != 0 && get_to(msg)->tag_value.len != 0)
return 1;
return 0;
}
/* is this reply of interest for accounting ? */
static inline int should_acc_reply(struct sip_msg *req,struct sip_msg *rpl,
int code, unsigned long long* flags)
{
/* negative transactions reported otherwise only if explicitly
* demanded */
if ( !is_failed_acc_on(*flags) && code >=300 ) {
return 0;
}
if ( !is_acc_on(*flags) ) {
return 0;
}
if ( code<200 && !(early_media && rpl!=FAKED_REPLY &&
parse_headers(rpl,HDR_CONTENTLENGTH_F, 0)==0 && rpl->content_length &&
get_content_length(rpl)>0 ) ) {
return 0;
}
return 1; /* seed is through, we will account this reply */
}
/* parse incoming replies before cloning */
static inline void acc_onreply_in(struct cell *t, struct sip_msg *req,
struct sip_msg *reply, int code, acc_ctx_t* ctx)
{
/* don't parse replies in which we are not interested */
/* missed calls enabled ? */
if (reply
&& reply != FAKED_REPLY
&& (should_acc_reply(req,reply,code, &ctx->flags)
|| (is_invite(t)
&& code >= 300
&& is_mc_acc_on(ctx->flags)))) {
parse_headers(reply, HDR_TO_F, 0 );
}
}
/* initiate a report if we previously enabled MC accounting for this t */
static inline void on_missed(struct cell *t, struct sip_msg *req,
struct sip_msg *reply, int code, acc_ctx_t *ctx)
{
str new_uri_bk={0,0};
str dst_uri_bk={0,0};
unsigned long long flags_to_reset=0;
unsigned long long *flags = &ctx->flags;
if (t->nr_of_outgoings) {
/* set as new_uri the last branch */
new_uri_bk = req->new_uri;
dst_uri_bk = req->dst_uri;
req->new_uri = t->uac[t->nr_of_outgoings-1].uri;
req->dst_uri = t->uac[t->nr_of_outgoings-1].duri;
req->parsed_uri_ok = 0;
}
/* set env variables */
env_set_to( get_rpl_to(t,reply) );
env_set_code_status( code, reply);
/* we report on missed calls when the first
* forwarding attempt fails; we do not wish to
* report on every attempt; so we clear the flags;
*/
if (is_evi_mc_on(*flags)) {
env_set_event(acc_missed_event);
acc_evi_request( req, reply, is_evi_cdr_on(*flags) );
flags_to_reset |= DO_ACC_EVI * DO_ACC_MISSED;
}
if (is_log_mc_on(*flags)) {
env_set_text( ACC_MISSED, ACC_MISSED_LEN);
acc_log_request( req, reply, is_log_cdr_on(*flags) );
flags_to_reset |= DO_ACC_LOG * DO_ACC_MISSED;
}
if (is_aaa_mc_on(*flags)) {
acc_aaa_request( req, reply, is_aaa_cdr_on(*flags) );
flags_to_reset |= DO_ACC_AAA * DO_ACC_MISSED;
}
if (is_db_mc_on(*flags)) {
env_set_text(db_table_mc.s, db_table_mc.len);
acc_db_request( req, reply,&mc_ins_list, is_db_cdr_on(*flags));
flags_to_reset |= DO_ACC_DB * DO_ACC_MISSED;
}
/* Reset the accounting missed_flags
* These can't be reset in the blocks above, because
* it would skip accounting if the flags are identical
*/
if (t->nr_of_outgoings) {
req->new_uri = new_uri_bk;
req->dst_uri = dst_uri_bk;
req->parsed_uri_ok = 0;
}
reset_flags(*flags, flags_to_reset);
}
/*
* This mid-dialog request callback ensures that any extra/leg settings done
* at script level before dialog matching is performed will get properly
* transferred into the dialog context, once the dialog is matched
*/
static void acc_merge_contexts(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params)
{
acc_ctx_t *ctx;
/* if there is already a acc context in the processing
* context, be sure to destroy it for now */
if ((ctx = ACC_GET_CTX())) {
push_ctx_to_ctx( ctx, (acc_ctx_t *)(*_params->param));
acc_unref(ctx); /* unref it now beause it will disapear from local ctx */
}
ctx = (acc_ctx_t *)(*_params->param);
acc_ref(ctx);
ACC_PUT_CTX(ctx);
}
/* restore callbacks */
void acc_loaded_callback(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params) {
str flags_s, ctx_s, table_s, created_s;
acc_ctx_t* ctx;
time_t created;
unsigned long long flags;
if (!dlg) {
LM_ERR("null dialog - cannot fetch message flags\n");
return;
}
flags_s.s = (char *)&flags;
flags_s.len = sizeof(flags);
if (dlg_api.fetch_dlg_value(dlg, &flags_str, &flags_s, 1) < 0) {
LM_DBG("flags were not saved in dialog\n");
return;
}
created_s.s = (char *)&created;
created_s.len = sizeof(created);
if (dlg_api.fetch_dlg_value(dlg, &created_str, &created_s, 1) < 0) {
LM_DBG("created time was not saved in dialog\n");
return;
}
/**
* restore acc extra context(extra and leg values)
*/
if (restore_dlg_extra(dlg, &ctx)) {
LM_ERR("failed to rebuild acc context!\n");
return;
}
/* copy flags value into the context */
ctx->flags = flags;
/* copy created value into the context */
ctx->created = created;
/* restore accounting table if db accounting is used */
if (is_db_acc_on(ctx->flags)) {
if (dlg_api.fetch_dlg_value(dlg, &table_str, &table_s, 0) < 0) {
LM_DBG("table was not saved in dialog\n");
return;
}
if ((ctx->acc_table.s=shm_malloc(table_s.len)) == NULL) {
LM_ERR("no more shm!\n");
return;
}
memcpy(ctx->acc_table.s, table_s.s, table_s.len);
ctx->acc_table.len = table_s.len;
}
/* replace the context value with a good pointer */
ctx_s.s = (char *)&ctx;
ctx_s.len = sizeof(acc_ctx_t *);
if (dlg_api.store_dlg_value(dlg, &acc_ctx_str, &ctx_s) < 0) {
LM_ERR("failed to set new context value!\n");
return;
}
/* register database callbacks */
acc_ref_ex(ctx, 2);
if (dlg_api.register_dlgcb(dlg, DLGCB_TERMINATED |
DLGCB_EXPIRED, acc_dlg_ended, ctx, unref_acc_ctx)){
LM_ERR("cannot register callback for database accounting\n");
acc_unref_ex(ctx, 2);
return;
}
/* register dlg callbacks for ctx management */
if (dlg_api.register_dlgcb(dlg, DLGCB_REQ_WITHIN,
acc_merge_contexts, ctx, unref_acc_ctx) != 0) {
acc_unref(ctx); /* only one, the other one was successful */
LM_ERR("cannot register callback ctx management\n");
return;
}
}
/* initiate a report if we previously enabled accounting for this t */
static inline void acc_onreply( struct cell* t, struct sip_msg *req,
struct sip_msg *reply, int code, acc_ctx_t* ctx)
{
str new_uri_bk;
str dst_uri_bk;
struct dlg_cell *dlg = NULL;
str ctx_s;
str table;
unsigned long long* flags = &ctx->flags;
/* acc_onreply is bound to TMCB_REPLY which may be called
from _reply, like when FR hits; we should not miss this
event for missed calls either */
if (is_invite(t) && code>=300 && is_mc_acc_on(*flags) ) {
on_missed(t, req, reply, code, ctx);
}
if (!should_acc_reply(req, reply, code, flags))
return;
/* for reply processing, set as new_uri the winning branch */
if (t->relaied_reply_branch>=0) {
new_uri_bk = req->new_uri;
dst_uri_bk = req->dst_uri;
req->new_uri = t->uac[t->relaied_reply_branch].uri;
req->dst_uri = t->uac[t->relaied_reply_branch].duri;
req->parsed_uri_ok = 0;
} else {
new_uri_bk.len = dst_uri_bk.len = -1;
new_uri_bk.s = dst_uri_bk.s = NULL;
}
/* set env variables */
env_set_to( get_rpl_to(t,reply) );
env_set_code_status( code, reply);
/* search for table avp */
if (is_db_acc_on(ctx->flags))
table = ctx->acc_table;
else {
table.s = 0;
table.len = 0;
}
if (is_invite(t) && !has_totag(req) && is_cdr_acc_on(ctx->flags) &&
code >= 200 && code < 300 && (dlg=dlg_api.get_dlg()) != NULL) {
/* if dialog module loaded and INVITE and success reply */
if (store_core_leg_values(dlg, req) < 0) {
LM_ERR("cannot store core and leg values\n");
goto restore;
}
ctx_s.s = (char*)&ctx;
ctx_s.len = sizeof(acc_ctx_t *);
/* store context pointer into dialog */
if (dlg_api.store_dlg_value(dlg, &acc_ctx_str, &ctx_s) < 0) {
LM_ERR("cannot store context pointer into dlg val!\n");
goto restore;
}
/* register callback for program shutdown or dialog replication
* won't register free function since TERMINATED|EXPIRED callback
* free function will be called to free */
if (dlg_api.register_dlgcb(dlg, DLGCB_WRITE_VP,
acc_dlg_onwrite, ctx, NULL) != 0) {
LM_ERR("cannot register callback for context serialization\n");
goto restore;
}
/* register database callbacks */
acc_ref_ex(ctx, 2);
if (dlg_api.register_dlgcb(dlg, DLGCB_TERMINATED|DLGCB_EXPIRED,
acc_dlg_ended, ctx, unref_acc_ctx) != 0) {
acc_unref_ex(ctx, 2);
LM_ERR("cannot register callback for database accounting\n");
goto restore;
}
/* register dlg callbacks for ctx management */
if (dlg_api.register_dlgcb(dlg, DLGCB_REQ_WITHIN,
acc_merge_contexts, ctx, unref_acc_ctx) != 0) {
acc_unref(ctx); /* only one, the other one was successful */
LM_ERR("cannot register callback ctx management\n");
goto restore;
}
} else {
/* do old accounting */
if ( is_evi_acc_on(*flags) ) {
env_set_event(acc_event);
acc_evi_request( req, reply, 0 );
}
if ( is_log_acc_on(*flags) ) {
env_set_text( ACC_ANSWERED, ACC_ANSWERED_LEN);
acc_log_request( req, reply, 0 );
}
if (is_aaa_acc_on(*flags))
acc_aaa_request( req, reply, 0 );
if (is_db_acc_on(*flags)) {
env_set_text( table.s, table.len);
acc_db_request( req, reply, &acc_ins_list, 0);
}
}
restore:
if (new_uri_bk.len>=0) {
req->new_uri = new_uri_bk;
req->dst_uri = dst_uri_bk;
req->parsed_uri_ok = 0;
}
}
static void acc_dlg_ended(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params)
{
struct cell* t;
acc_ctx_t* ctx;
if (!_params) {
LM_ERR("not enough info\n");
return;
}
/* resolve local/dlg ctx conflict by merging them together */
acc_merge_contexts(dlg, type, _params);
ctx = (acc_ctx_t *)(*_params->param);
/*
* this way we "enable" the refcount
* if opensips shuts down before dialog terminated then the refcount
* won't be enabled
*/
if (was_dlg_cb_used(ctx->flags)) {
LM_INFO("CDR callback already registered [%p|%u] - do not run it again!\n",
*_params->param, ctx->ref_no);
return;
}
set_dlg_cb_used(ctx->flags);
/* this time will be used to set */
gettimeofday(&ctx->bye_time, NULL);
/* if it's not a local transaction we do the accounting on the tm callbacks */
if (((t=tmb.t_gett()) == T_UNDEFINED) || !t ||
!tmb.t_is_local(_params->msg)) {
/* normal dialogs will have to do accounting when the response for
* the bye will come since users should be able to populate extra
* vars and leg vars */
acc_ref(ctx);
if (tmb.register_tmcb( _params->msg, NULL,
TMCB_RESPONSE_OUT, acc_cdr_cb, ctx, unref_acc_ctx) < 0) {
acc_unref(ctx);
LM_ERR("failed to register cdr callback!\n");
return;
}
/* for local transactions we do the accounting here since all the messages
* have been processed */
} else {
/* expired dialogs will be handled here */
if (is_log_acc_on(ctx->flags)) {
env_set_text( ACC_ENDED, ACC_ENDED_LEN);
if (acc_log_cdrs(dlg, _params->msg, ctx) < 0) {
LM_ERR("Cannot log values\n");
return;
}
}
if (is_db_acc_on(ctx->flags)) {
env_set_text( db_table_acc.s, db_table_acc.len);
if (acc_db_cdrs(dlg, _params->msg, ctx) < 0) {
LM_ERR("Cannot insert into database\n");
return;
}
}
if (is_aaa_acc_on(ctx->flags) && acc_aaa_cdrs(dlg, _params->msg, ctx) < 0) {
LM_ERR("Cannot create radius accounting\n");
return;
}
if (is_evi_acc_on(ctx->flags)) {
env_set_event(acc_cdr_event);
if (acc_evi_cdrs(dlg, _params->msg, ctx) < 0) {
LM_ERR("cannot send accounting events\n");
return;
}
}
}
}
static void acc_dlg_onwrite(struct dlg_cell *dlg, int type,
struct dlg_cb_params *_params)
{
str flags_s;
acc_ctx_t* ctx;
str created_s;
if (!_params) {
LM_ERR("not enough info!\n");
return;
}
ctx = *_params->param;
if (ctx->extra_values &&
store_extra_values(ctx->extra_values, &extra_str, dlg) < 0) {
LM_ERR("cannot store extra values!\n");
return;
}
if (ctx->leg_values &&
store_leg_values(ctx, &leg_str, dlg) < 0) {
LM_ERR("cannot store leg values!\n");
return;
}
flags_s.s = (char*)(&ctx->flags);
flags_s.len = sizeof(unsigned long long);
/* store flags into dlg */
if ( dlg_api.store_dlg_value(dlg, &flags_str, &flags_s) < 0) {
LM_ERR("cannot store flag value into dialog\n");
return;
}
created_s.s = (char*)(&ctx->created);
created_s.len = sizeof(time_t);
if ( dlg_api.store_dlg_value(dlg,&created_str,&created_s) < 0) {
LM_ERR("cannot store created value!\n");
return;
}
if (is_db_acc_on(ctx->flags) && ctx->acc_table.s && ctx->acc_table.len) {
if ( dlg_api.store_dlg_value(dlg, &table_str, &ctx->acc_table) < 0) {
LM_ERR("cannot store table name into dialog\n");
return;
}
}
}
static void acc_cdr_cb( struct cell* t, int type, struct tmcb_params *ps )
{
acc_ctx_t* ctx = *ps->param;
struct dlg_cell *dlg;
dlg = dlg_api.get_dlg();
if (dlg == NULL) {
LM_DBG("dlg is null!\n");
return;
}
if (is_log_acc_on(ctx->flags)) {
env_set_text( ACC_ENDED, ACC_ENDED_LEN);
if (acc_log_cdrs(dlg, ps->req, ctx) < 0) {
LM_ERR("Cannot log values\n");
return;
}
}
if (is_db_acc_on(ctx->flags)) {
env_set_text( db_table_acc.s, db_table_acc.len);
if (acc_db_cdrs(dlg, ps->req, ctx) < 0) {
LM_ERR("Cannot insert into database\n");
return;
}
}
if (is_aaa_acc_on(ctx->flags) && acc_aaa_cdrs(dlg, ps->req, ctx) < 0) {
LM_ERR("Cannot create radius accounting\n");
return;
}
if (is_evi_acc_on(ctx->flags)) {
env_set_event(acc_cdr_event);
if (acc_evi_cdrs(dlg, ps->req, ctx) < 0) {
LM_ERR("cannot send accounting events\n");
return;
}
}
}
static void tmcb_func( struct cell* t, int type, struct tmcb_params *ps )
{
acc_ctx_t* ctx = *ps->param;
if (ACC_GET_TM_CTX(t) == NULL) {