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ims_ro.c
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ims_ro.c
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#include "mod.h"
#include <math.h>
#include "../../parser/msg_parser.h"
#include "../../parser/parse_uri.h"
#include "../../sr_module.h"
#include "../../socket_info.h"
#include "../../timer.h"
#include "../../locking.h"
#include "../../modules/tm/tm_load.h"
#include "../../modules/ims_dialog/dlg_hash.h"
#include "../../modules/ims_dialog/dlg_load.h"
#include "../cdp/cdp_load.h"
#include "../../mod_fix.h"
#include "../../parser/parse_from.h"
#include "../../parser/parse_to.h"
#include "../../lib/ims/ims_getters.h"
#include "../../parser/sdp/sdp.h"
#include "diameter_ro.h"
#include "ims_ro.h"
#include "Ro_data.h"
#include "dialog.h"
#include "ccr.h"
#include "config.h"
#include "ro_session_hash.h"
#include "ro_avp.h"
#include "ro_db_handler.h"
#include "ims_charging_stats.h"
extern struct tm_binds tmb;
extern struct cdp_binds cdpb;
extern client_ro_cfg cfg;
extern ims_dlg_api_t dlgb;
extern cdp_avp_bind_t *cdp_avp;
extern str ro_forced_peer;
extern int ro_db_mode;
extern struct ims_charging_counters_h ims_charging_cnts_h;
extern int vendor_specific_id;
extern int vendor_specific_chargeinfo;
struct session_setup_data {
struct ro_session *ro_session;
cfg_action_t* action;
unsigned int tindex;
unsigned int tlabel;
};
struct dlg_binds* dlgb_p;
extern struct tm_binds tmb;
int interim_request_credits;
extern int voice_service_identifier;
extern int voice_rating_group;
extern int video_service_identifier;
extern int video_rating_group;
static int create_cca_return_code(int result);
static int create_cca_result_code(int result);
static int create_cca_fui_avps(int action, str* redirecturi);
static void resume_on_initial_ccr(int is_timeout, void *param, AAAMessage *cca, long elapsed_msecs);
static void resume_on_interim_ccr(int is_timeout, void *param, AAAMessage *cca, long elapsed_msecs);
static void resume_on_termination_ccr(int is_timeout, void *param, AAAMessage *cca, long elapsed_msecs);
static int get_mac_avp_value(struct sip_msg *msg, str *value);
void credit_control_session_callback(int event, void* session) {
switch (event) {
case AUTH_EV_SESSION_DROP:
LM_DBG("Received notification of CC App session drop - we must free the generic data\n");
break;
default:
LM_DBG("Received unhandled event [%d] in credit control session callback from CDP\n", event);
}
}
/**
* Create and add an AVP to a list of AVPs.
* @param list - the AVP list to add to
* @param d - the payload data
* @param len - length of the payload data
* @param avp_code - the code of the AVP
* @param flags - flags for the AVP
* @param vendorid - the value of the vendor id or 0 if none
* @param data_do - what to do with the data when done
* @param func - the name of the calling function, for debugging purposes
* @returns 1 on success or 0 on failure
*/
static inline int Ro_add_avp_list(AAA_AVP_LIST *list, char *d, int len, int avp_code,
int flags, int vendorid, int data_do, const char *func) {
AAA_AVP *avp;
if (vendorid != 0) flags |= AAA_AVP_FLAG_VENDOR_SPECIFIC;
avp = cdpb.AAACreateAVP(avp_code, flags, vendorid, d, len, data_do);
if (!avp) {
LM_ERR("%s: Failed creating avp\n", func);
return 0;
}
if (list->tail) {
avp->prev = list->tail;
avp->next = 0;
list->tail->next = avp;
list->tail = avp;
} else {
list->head = avp;
list->tail = avp;
avp->next = 0;
avp->prev = 0;
}
return 1;
}
inline int Ro_add_cc_request(AAAMessage *msg, unsigned int cc_request_type, unsigned int cc_request_number) {
char x[4];
set_4bytes(x, cc_request_type);
int success = Ro_add_avp(msg, x, 4, AVP_CC_Request_Type, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
char y[4];
set_4bytes(y, cc_request_number);
return success && Ro_add_avp(msg, y, 4, AVP_CC_Request_Number, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
inline int Ro_add_event_timestamp(AAAMessage *msg, time_t now) {
char x[4];
str s = {x, 4};
uint32_t ntime = htonl(now + EPOCH_UNIX_TO_EPOCH_NTP);
memcpy(x, &ntime, sizeof (uint32_t));
return Ro_add_avp(msg, s.s, s.len, AVP_Event_Timestamp, AAA_AVP_FLAG_NONE, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
inline int Ro_add_user_equipment_info(AAAMessage *msg, unsigned int type, str value) {
AAA_AVP_LIST list;
str group;
char x[4];
list.head = 0;
list.tail = 0;
set_4bytes(x, type);
Ro_add_avp_list(&list, x, 4, AVP_User_Equipment_Info_Type, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
Ro_add_avp_list(&list, value.s, value.len, AVP_User_Equipment_Info_Value, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
group = cdpb.AAAGroupAVPS(list);
cdpb.AAAFreeAVPList(&list);
return Ro_add_avp(msg, group.s, group.len, AVP_User_Equipment_Info, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
inline int Ro_add_termination_cause(AAAMessage *msg, unsigned int term_code) {
char x[4];
str s = {x, 4};
uint32_t code = htonl(term_code);
memcpy(x, &code, sizeof (uint32_t));
return Ro_add_avp(msg, s.s, s.len, AVP_Termination_Cause, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
inline int Ro_add_vendor_specific_termination_cause(AAAMessage *msg, unsigned int term_code) {
char x[4];
str s = {x, 4};
uint32_t code = htonl(term_code);
memcpy(x, &code, sizeof (uint32_t));
return Ro_add_avp(msg, s.s, s.len, VS_TERMCODE, AAA_AVP_FLAG_VENDOR_SPECIFIC, 10, AVP_DUPLICATE_DATA, __FUNCTION__);
}
inline int Ro_add_vendor_specific_termination_reason(AAAMessage *msg, str* reason) {
return Ro_add_avp(msg, reason->s, reason->len, VS_TERMREASON, AAA_AVP_FLAG_VENDOR_SPECIFIC, 10, AVP_DUPLICATE_DATA, __FUNCTION__);
}
/* called only when building stop record AVPS */
inline int Ro_add_multiple_service_credit_Control_stop(AAAMessage *msg, int used_unit, int active_rating_group, int active_service_identifier) {
char x[4];
AAA_AVP_LIST used_list, mscc_list;
str used_group;
// Add Multiple-Services AVP Indicator
set_4bytes(x, 1);
Ro_add_avp(msg, x, 4, AVP_Multiple_Services_Indicator, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
//unsigned int service_id = 1000; //Removed these are now configurable config file params
//unsigned int rating_group = 500; //Removed these are now configurable config file params
used_list.head = 0;
used_list.tail = 0;
mscc_list.head = 0;
mscc_list.tail = 0;
/* if we must Used-Service-Unit */
if (used_unit >= 0) {
set_4bytes(x, used_unit);
Ro_add_avp_list(&used_list, x, 4, AVP_CC_Time, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
used_group = cdpb.AAAGroupAVPS(used_list);
cdpb.AAAFreeAVPList(&used_list);
Ro_add_avp_list(&mscc_list, used_group.s, used_group.len, AVP_Used_Service_Unit, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
set_4bytes(x, active_service_identifier);
Ro_add_avp_list(&mscc_list, x, 4, AVP_Service_Identifier, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
// Rating Group = -1 => omit Rating group
if (active_rating_group >= 0) {
set_4bytes(x, active_rating_group);
Ro_add_avp_list(&mscc_list, x, 4, AVP_Rating_Group, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
used_group = cdpb.AAAGroupAVPS(mscc_list);
cdpb.AAAFreeAVPList(&mscc_list);
return Ro_add_avp(msg, used_group.s, used_group.len, AVP_Multiple_Services_Credit_Control, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
inline int Ro_add_multiple_service_credit_Control(AAAMessage *msg, unsigned int requested_unit, int used_unit, int active_rating_group, int active_service_identifier) {
// Add Multiple-Services AVP Indicator
char x[4];
set_4bytes(x, 1);
Ro_add_avp(msg, x, 4, AVP_Multiple_Services_Indicator, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
AAA_AVP_LIST list, used_list, mscc_list;
str group, used_group;
list.head = 0;
list.tail = 0;
used_list.head = 0;
used_list.tail = 0;
mscc_list.head = 0;
mscc_list.tail = 0;
set_4bytes(x, requested_unit);
Ro_add_avp_list(&list, x, 4, AVP_CC_Time, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
group = cdpb.AAAGroupAVPS(list);
cdpb.AAAFreeAVPList(&list);
Ro_add_avp_list(&mscc_list, group.s, group.len, AVP_Requested_Service_Unit, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
set_4bytes(x, active_service_identifier);
Ro_add_avp_list(&mscc_list, x, 4, AVP_Service_Identifier, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
// Rating Group = -1 => omit Rating group
if (active_rating_group >= 0) {
set_4bytes(x, active_rating_group);
Ro_add_avp_list(&mscc_list, x, 4, AVP_Rating_Group, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
/* if we must Used-Service-Unit */
if (used_unit >= 0) {
set_4bytes(x, used_unit);
Ro_add_avp_list(&used_list, x, 4, AVP_CC_Time, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
used_group = cdpb.AAAGroupAVPS(used_list);
cdpb.AAAFreeAVPList(&used_list);
Ro_add_avp_list(&mscc_list, used_group.s, used_group.len, AVP_Used_Service_Unit, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
group = cdpb.AAAGroupAVPS(mscc_list);
cdpb.AAAFreeAVPList(&mscc_list);
return Ro_add_avp(msg, group.s, group.len, AVP_Multiple_Services_Credit_Control, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
inline int Ro_add_subscription_id(AAAMessage *msg, unsigned int type, str *subscription_id)//, struct sip_msg* sip_msg)
{
AAA_AVP_LIST list;
str group;
char x[4];
list.head = 0;
list.tail = 0;
set_4bytes(x, type);
Ro_add_avp_list(&list, x, 4, AVP_Subscription_Id_Type, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
Ro_add_avp_list(&list, subscription_id->s, subscription_id->len, AVP_Subscription_Id_Data, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
group = cdpb.AAAGroupAVPS(list);
cdpb.AAAFreeAVPList(&list);
return Ro_add_avp(msg, group.s, group.len, AVP_Subscription_Id, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
/**
* Creates and adds a Vendor-Specifig-Application-ID AVP.
* @param msg - the Diameter message to add to.
* @param vendor_id - the value of the vendor_id,
* @param auth_id - the authorization application id
* @param acct_id - the accounting application id
* @returns 1 on success or 0 on error
*/
inline int Ro_add_vendor_specific_appid(AAAMessage *msg, unsigned int vendor_id, unsigned int auth_id, unsigned int acct_id) {
AAA_AVP_LIST list;
str group;
char x[4];
list.head = 0;
list.tail = 0;
set_4bytes(x, vendor_id);
Ro_add_avp_list(&list, x, 4, AVP_Vendor_Id, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
if (auth_id) {
set_4bytes(x, auth_id);
Ro_add_avp_list(&list, x, 4, AVP_Auth_Application_Id, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
if (acct_id) {
set_4bytes(x, acct_id);
Ro_add_avp_list(&list, x, 4, AVP_Acct_Application_Id, AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__);
}
group = cdpb.AAAGroupAVPS(list);
cdpb.AAAFreeAVPList(&list);
return Ro_add_avp(msg, group.s, group.len, AVP_Vendor_Specific_Application_Id, AAA_AVP_FLAG_MANDATORY, 0, AVP_FREE_DATA, __FUNCTION__);
}
int get_sip_header_info(struct sip_msg * req,
struct sip_msg * reply,
int32_t * acc_record_type,
str * sip_method,
str * event, uint32_t * expires,
str * callid, str * asserted_id_uri, str * to_uri) {
sip_method->s = req->first_line.u.request.method.s;
sip_method->len = req->first_line.u.request.method.len;
if (strncmp(sip_method->s, "INVITE", 6) == 0)
*acc_record_type = AAA_ACCT_START;
else if (strncmp(sip_method->s, "BYE", 3) == 0)
*acc_record_type = AAA_ACCT_STOP;
else
*acc_record_type = AAA_ACCT_EVENT;
*event = cscf_get_event(req);
*expires = cscf_get_expires_hdr(req, 0);
*callid = cscf_get_call_id(req, NULL);
if ((*asserted_id_uri = cscf_get_asserted_identity(req, 0)).len == 0) {
LM_DBG("No P-Asserted-Identity hdr found. Using From hdr");
if (!cscf_get_from_uri(req, asserted_id_uri)) {
LM_ERR("Error assigning P-Asserted-Identity using From hdr");
goto error;
}
}
*to_uri = req->first_line.u.request.uri;
LM_DBG("retrieved sip info : sip_method %.*s acc_record_type %i, event %.*s expires %u "
"call_id %.*s from_uri %.*s to_uri %.*s\n",
sip_method->len, sip_method->s, *acc_record_type, event->len, event->s, *expires,
callid->len, callid->s, asserted_id_uri->len, asserted_id_uri->s, to_uri->len, to_uri->s);
return 1;
error:
return 0;
}
int get_ims_charging_info(struct sip_msg *req, struct sip_msg * reply, str * icid, str * orig_ioi, str * term_ioi) {
LM_DBG("get ims charging info\n");
if (req)
cscf_get_p_charging_vector(req, icid, orig_ioi, term_ioi);
if (reply)
cscf_get_p_charging_vector(reply, icid, orig_ioi, term_ioi);
return 1;
}
int get_timestamps(struct sip_msg * req, struct sip_msg * reply, time_t * req_timestamp, time_t * reply_timestamp) {
if (reply)
*reply_timestamp = time(NULL);
if (req)
*req_timestamp = time(NULL);
return 1;
}
/*
* creates the ro session for a session establishment
*
*/
Ro_CCR_t * dlg_create_ro_session(struct sip_msg * req, struct sip_msg * reply, AAASession ** authp, int dir, str asserted_identity,
str called_asserted_identity, str subscription_id, int subscription_id_type, str* incoming_trunk_id, str *outgoing_trunk_id, str* pani) {
Ro_CCR_t * ro_ccr_data = 0;
AAASession * auth = NULL;
str user_name/* ={0,0}*/, sip_method = {0, 0}, event = {0, 0};
uint32_t expires = 0;
str callid = {0, 0}, to_uri = {0, 0}, from_uri = {0, 0},
icid = {0, 0}, orig_ioi = {0, 0}, term_ioi = {0, 0};
event_type_t * event_type = 0;
ims_information_t * ims_info = 0;
time_stamps_t * time_stamps = 0;
time_t req_timestamp = 0, reply_timestamp = 0;
int32_t acc_record_type;
subscription_id_t subscr;
*authp = 0;
if (!get_sip_header_info(req, reply, &acc_record_type, &sip_method, &event, &expires, &callid, &from_uri, &to_uri))
goto error;
user_name.s = subscription_id.s;
user_name.len = subscription_id.len;
/* if(!get_ims_charging_info(req, reply, &icid, &orig_ioi, &term_ioi))
goto error;
*/
LM_DBG("retrieved ims charging info icid:[%.*s] orig_ioi:[%.*s] term_ioi:[%.*s]\n",
icid.len, icid.s, orig_ioi.len, orig_ioi.s, term_ioi.len, term_ioi.s);
if (!get_timestamps(req, reply, &req_timestamp, &reply_timestamp))
goto error;
if (!(event_type = new_event_type(&sip_method, &event, &expires)))
goto error;
if (!(time_stamps = new_time_stamps(&req_timestamp, NULL, &reply_timestamp, NULL)))
goto error;
if (!(ims_info = new_ims_information(event_type, time_stamps, &callid, &callid, &asserted_identity, &called_asserted_identity, &icid,
&orig_ioi, &term_ioi, dir, incoming_trunk_id, outgoing_trunk_id, pani)))
goto error;
event_type = 0;
time_stamps = 0;
subscr.id.s = subscription_id.s;
subscr.id.len = subscription_id.len;
subscr.type = subscription_id_type;
ro_ccr_data = new_Ro_CCR(acc_record_type, &user_name, ims_info, &subscr);
if (!ro_ccr_data) {
LM_ERR("dlg_create_ro_session: no memory left for generic\n");
goto out_of_memory;
}
ims_info = 0;
if (strncmp(req->first_line.u.request.method.s, "INVITE", 6) == 0) {
//create CDP CC Accounting session
auth = cdpb.AAACreateCCAccSession(credit_control_session_callback, 1/*is_session*/, NULL); //must unlock session hash when done
LM_DBG("Created Ro Session with id Session ID [%.*s]\n", auth->id.len, auth->id.s);
//save_session = auth->id;
}
/*if (strncmp(req->first_line.u.request.method.s, "BYE", 3) == 0) {
auth = cdp_avp->cdp->AAAGetAuthSession(save_session);
}*/
if (!auth) {
LM_ERR("unable to create the Ro Session\n");
goto error;
}
*authp = auth;
return ro_ccr_data;
out_of_memory:
error :
time_stamps_free(time_stamps);
event_type_free(event_type);
ims_information_free(ims_info);
Ro_free_CCR(ro_ccr_data);
return NULL;
}
int sip_create_ro_ccr_data(struct sip_msg * msg, int dir, Ro_CCR_t ** ro_ccr_data, AAASession ** auth, str asserted_identity, str called_asserted_identity,
str subscription_id, int subscription_id_type, str* incoming_trunk_id, str* outgoing_trunk_id, str* pani) {
if (msg->first_line.type == SIP_REQUEST) {
/*end of session*/
if (strncmp(msg->first_line.u.request.method.s, "INVITE", 6) == 0) {
if (!(*ro_ccr_data = dlg_create_ro_session(msg, NULL, auth, dir, asserted_identity, called_asserted_identity, subscription_id,
subscription_id_type, incoming_trunk_id, outgoing_trunk_id, pani)))
goto error;
}
} else {
goto error; //We only support Request (INVITE) messages on this interface
}
return 1;
error:
return 0;
}
/* must be called with lock on ro_session */
void send_ccr_interim(struct ro_session* ro_session, unsigned int used, unsigned int reserve) {
AAASession * auth = 0;
AAAMessage * ccr = 0;
Ro_CCR_t *ro_ccr_data = 0;
ims_information_t *ims_info = 0;
int32_t acc_record_type;
subscription_id_t subscr;
time_stamps_t *time_stamps;
struct interim_ccr *i_req = shm_malloc(sizeof (struct interim_ccr));
int ret = 0;
event_type_t *event_type;
memset(i_req, 0, sizeof (sizeof (struct interim_ccr)));
i_req->ro_session = ro_session;
str sip_method = str_init("dummy");
str sip_event = str_init("dummy");
str user_name = {0, 0};
time_t req_timestamp;
event_type = new_event_type(&sip_method, &sip_event, 0);
LM_DBG("Sending interim CCR request for (usage:new) [%i:%i] seconds for user [%.*s] using session id [%.*s] active rating group [%d] active service identifier [%d] incoming_trunk_id [%.*s] outgoing_trunk_id [%.*s]\n",
used,
reserve,
ro_session->asserted_identity.len, ro_session->asserted_identity.s,
ro_session->ro_session_id.len, ro_session->ro_session_id.s,
ro_session->rating_group, ro_session->service_identifier,
ro_session->incoming_trunk_id.len, ro_session->incoming_trunk_id.s,
ro_session->outgoing_trunk_id.len, ro_session->outgoing_trunk_id.s);
req_timestamp = time(0);
if (!(time_stamps = new_time_stamps(&req_timestamp, NULL, NULL, NULL)))
goto error;
if (!(ims_info = new_ims_information(event_type, time_stamps, &ro_session->callid, &ro_session->callid, &ro_session->asserted_identity,
&ro_session->called_asserted_identity, 0, 0, 0, ro_session->direction, &ro_session->incoming_trunk_id, &ro_session->outgoing_trunk_id, &ro_session->pani)))
goto error;
LM_DBG("Created IMS information\n");
event_type = 0;
if (ro_session->direction == RO_ORIG_DIRECTION) {
subscr.id = ro_session->asserted_identity;
} else if (ro_session->direction == RO_TERM_DIRECTION) {
subscr.id = ro_session->called_asserted_identity;
} else {
LM_CRIT("don't know what to do in unknown mode - should we even get here\n");
goto error;
}
//getting subscription id type
if (strncasecmp(subscr.id.s, "tel:", 4) == 0) {
subscr.type = Subscription_Type_MSISDN;
// Strip "tel:":
subscr.id.s += 4;
subscr.id.len -= 4;
} else {
subscr.type = Subscription_Type_IMPU; //default is END_USER_SIP_URI
}
user_name.s = subscr.id.s;
user_name.len = subscr.id.len;
acc_record_type = AAA_ACCT_INTERIM;
ro_ccr_data = new_Ro_CCR(acc_record_type, &user_name, ims_info, &subscr);
if (!ro_ccr_data) {
LM_ERR("no memory left for generic\n");
goto error;
}
ims_info = NULL;
auth = cdpb.AAAGetCCAccSession(ro_session->ro_session_id);
if (!auth) {
LM_DBG("Diameter Auth Session has timed out.... creating a new one.\n");
/* lets try and recreate this session */
//TODO: make a CC App session auth = cdpb.AAASession(ro_session->auth_appid, ro_session->auth_session_type, ro_session->ro_session_id); //TODO: would like this session to last longer (see session timeout in cdp
//BUG("Oh shit, session timed out and I don't know how to create a new one.");
auth = cdpb.AAAMakeSession(ro_session->auth_appid, ro_session->auth_session_type, ro_session->ro_session_id); //TODO: would like this session to last longer (see session timeout in cdp
if (!auth)
goto error;
}
//don't send INTERIM record if session is not in OPEN state (it could already be waiting for a previous response, etc)
if (auth->u.cc_acc.state != ACC_CC_ST_OPEN) {
LM_WARN("ignoring interim update on CC session not in correct state, currently in state [%d]\n", auth->u.cc_acc.state);
goto error;
}
if (!(ccr = Ro_new_ccr(auth, ro_ccr_data)))
goto error;
if (!Ro_add_vendor_specific_appid(ccr, IMS_vendor_id_3GPP, IMS_Ro, 0/*acct id*/)) {
LM_ERR("Problem adding Vendor specific ID\n");
}
ro_session->hop_by_hop += 1;
if (!Ro_add_cc_request(ccr, RO_CC_INTERIM, ro_session->hop_by_hop)) {
LM_ERR("Problem adding CC-Request data\n");
}
if (!Ro_add_event_timestamp(ccr, time(NULL))) {
LM_ERR("Problem adding Event-Timestamp data\n");
}
if (!Ro_add_user_equipment_info(ccr, AVP_EPC_User_Equipment_Info_Type_MAC, ro_session->mac)) {
LM_ERR("Problem adding User-Equipment data\n");
}
if (!Ro_add_subscription_id(ccr, subscr.type, &(subscr.id))) {
LM_ERR("Problem adding Subscription ID data\n");
}
if (!Ro_add_multiple_service_credit_Control(ccr, interim_request_credits/*INTERIM_CREDIT_REQ_AMOUNT*/, used, ro_session->rating_group, ro_session->service_identifier)) {
LM_ERR("Problem adding Multiple Service Credit Control data\n");
}
LM_DBG("Sending CCR Diameter message.\n");
ro_session->last_event_timestamp_backup = ro_session->last_event_timestamp;
ro_session->last_event_timestamp = get_current_time_micro(); /*this is to make sure that if we get a term request now that we don't double bill for this time we are about to bill for in the interim */
cdpb.AAASessionsUnlock(auth->hash);
if (ro_forced_peer.len > 0) {
ret = cdpb.AAASendMessageToPeer(ccr, &ro_forced_peer, resume_on_interim_ccr, (void *) i_req);
} else {
ret = cdpb.AAASendMessage(ccr, resume_on_interim_ccr, (void *) i_req);
}
if (ret != 1) {
ccr = 0; // If an error is returned from cdp AAASendMessage, the message has been freed there
goto error;
}
// cdpb.AAASessionsUnlock(auth->hash);
Ro_free_CCR(ro_ccr_data);
counter_inc(ims_charging_cnts_h.interim_ccrs);
return;
error:
LM_ERR("error trying to reserve interim credit\n");
if (ro_ccr_data)
Ro_free_CCR(ro_ccr_data);
if (ccr)
cdpb.AAAFreeMessage(&ccr);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropCCAccSession(auth);
}
shm_free(i_req);
//
// since callback function will be never called because of the error, we need to release the lock on the session
// to it can be reused later.
//
struct ro_session_entry *ro_session_entry = &(ro_session_table->entries[ro_session->h_entry]);
ro_session_lock(ro_session_table, ro_session_entry);
unref_ro_session_unsafe(ro_session, 1, ro_session_entry); //unref from the initial timer that fired this event.
ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
static void resume_on_interim_ccr(int is_timeout, void *param, AAAMessage *cca, long elapsed_msecs) {
struct interim_ccr *i_req = (struct interim_ccr *) param;
Ro_CCA_t * ro_cca_data = NULL;
int error_or_timeout = 0;
if (is_timeout) {
counter_inc(ims_charging_cnts_h.ccr_timeouts);
LM_ERR("Transaction timeout - did not get CCA\n");
error_or_timeout = 1;
goto error;
}
counter_add(ims_charging_cnts_h.ccr_response_time, elapsed_msecs);
counter_inc(ims_charging_cnts_h.ccr_replies_received);
if (!i_req) {
LM_ERR("This is so wrong: ro session is NULL\n");
error_or_timeout = 1;
goto error;
}
if (cca == NULL) {
LM_ERR("Error reserving credit for CCA.\n");
error_or_timeout = 1;
goto error;
}
ro_cca_data = Ro_parse_CCA_avps(cca);
if (ro_cca_data == NULL) {
LM_ERR("Could not parse CCA message response.\n");
error_or_timeout = 1;
goto error;
}
if (ro_cca_data->resultcode != 2001) {
LM_ERR("Got bad CCA result code [%d] - reservation failed", ro_cca_data->resultcode);
error_or_timeout = 1;
goto error;
} else {
LM_DBG("Valid CCA response with time chunk of [%i] and validity [%i].\n", ro_cca_data->mscc->granted_service_unit->cc_time, ro_cca_data->mscc->validity_time);
}
i_req->new_credit = ro_cca_data->mscc->granted_service_unit->cc_time;
i_req->credit_valid_for = ro_cca_data->mscc->validity_time;
i_req->is_final_allocation = 0;
if (ro_cca_data->mscc->final_unit_action && (ro_cca_data->mscc->final_unit_action->action == 0))
i_req->is_final_allocation = 1;
Ro_free_CCA(ro_cca_data);
cdpb.AAAFreeMessage(&cca);
counter_inc(ims_charging_cnts_h.successful_interim_ccrs);
goto success;
error:
counter_inc(ims_charging_cnts_h.failed_interim_ccr);
if (ro_cca_data)
Ro_free_CCA(ro_cca_data);
if (!is_timeout && cca) {
cdpb.AAAFreeMessage(&cca);
}
if (i_req) {
i_req->credit_valid_for = 0;
i_req->new_credit = 0;
}
success:
resume_ro_session_ontimeout(i_req, error_or_timeout);
}
long get_current_time_micro() {
struct timeval tv;
gettimeofday(&tv, 0);
return tv.tv_sec*1000000 + tv.tv_usec;
}
void send_ccr_stop_with_param(struct ro_session *ro_session, unsigned int code, str* reason) {
AAASession * auth = 0;
Ro_CCR_t * ro_ccr_data = 0;
AAAMessage * ccr = 0;
ims_information_t *ims_info = 0;
int32_t acc_record_type;
subscription_id_t subscr;
time_stamps_t *time_stamps;
long used = 0;
str user_name = {0, 0};
int ret = 0;
time_t stop_time;
time_t actual_time_micros;
int actual_time_seconds;
stop_time = get_current_time_micro();
if (ro_session->start_time == 0)
actual_time_micros = 0;
else
actual_time_micros = stop_time - ro_session->start_time;
actual_time_seconds = (actual_time_micros + (1000000 - 1)) / (float) 1000000;
if (ro_session->event_type != pending) {
used = rint((stop_time - ro_session->last_event_timestamp) / (float) 1000000);
LM_DBG("Final used number of seconds for session is %ld\n", used);
}
LM_DBG("Call started at %ld and ended at %ld and lasted %d seconds and so far we have billed for %ld seconds\n", ro_session->start_time, stop_time,
actual_time_seconds, ro_session->billed + used);
if (ro_session->billed + used < actual_time_seconds) {
LM_DBG("Making adjustment by adding %ld seconds\n", actual_time_seconds - (ro_session->billed + used));
used += actual_time_seconds - (ro_session->billed + used);
}
counter_add(ims_charging_cnts_h.billed_secs, (int)used);
event_type_t *event_type;
str sip_method = str_init("dummy");
str sip_event = str_init("dummy");
time_t req_timestamp;
event_type = new_event_type(&sip_method, &sip_event, 0);
LM_DBG("Sending stop CCR request for (usage) [%i] seconds for user [%.*s] using session id [%.*s] active rating group [%d] active service identifier [%d] incoming_trunk_id [%.*s] outgoing_trunk_id [%.*s] pani [%.*s]\n",
(int)used,
ro_session->asserted_identity.len, ro_session->asserted_identity.s,
ro_session->ro_session_id.len, ro_session->ro_session_id.s,
ro_session->rating_group, ro_session->service_identifier,
ro_session->incoming_trunk_id.len, ro_session->incoming_trunk_id.s,
ro_session->outgoing_trunk_id.len, ro_session->outgoing_trunk_id.s,
ro_session->pani.len, ro_session->pani.s);
req_timestamp = get_current_time_micro();
if (!(time_stamps = new_time_stamps(&req_timestamp, NULL, NULL, NULL)))
goto error0;
if (!(ims_info = new_ims_information(event_type, time_stamps, &ro_session->callid, &ro_session->callid, &ro_session->asserted_identity,
&ro_session->called_asserted_identity, 0, 0, 0, ro_session->direction, &ro_session->incoming_trunk_id, &ro_session->outgoing_trunk_id, &ro_session->pani)))
goto error0;
event_type = 0;
if (ro_session->direction == RO_ORIG_DIRECTION) {
subscr.id = ro_session->asserted_identity;
} else if (ro_session->direction == RO_TERM_DIRECTION) {
subscr.id = ro_session->called_asserted_identity;
} else {
LM_CRIT("don't know what to do in unknown mode - should we even get here\n");
goto error0;
}
//getting subscription id type
if (strncasecmp(subscr.id.s, "tel:", 4) == 0) {
subscr.type = Subscription_Type_MSISDN;
} else {
subscr.type = Subscription_Type_IMPU; //default is END_USER_SIP_URI
}
user_name.s = subscr.id.s;
user_name.len = subscr.id.len;
acc_record_type = AAA_ACCT_STOP;
ro_ccr_data = new_Ro_CCR(acc_record_type, &user_name, ims_info, &subscr);
if (!ro_ccr_data) {
LM_ERR("send_ccr_stop: no memory left for generic\n");
goto error0;
}
ims_info = 0;
LM_DBG("Created Ro data\n");
auth = cdpb.AAAGetCCAccSession(ro_session->ro_session_id);
if (!auth) {
LM_DBG("Diameter Auth Session has timed out.... creating a new one.\n");
/* lets try and recreate this session */
auth = cdpb.AAAMakeSession(ro_session->auth_appid, ro_session->auth_session_type, ro_session->ro_session_id); //TODO: would like this session to last longer (see session timeout in cdp
if (!auth)
goto error1;
}
if (!(ccr = Ro_new_ccr(auth, ro_ccr_data)))
goto error1;
LM_DBG("Created new CCR\n");
if (!Ro_add_vendor_specific_appid(ccr, IMS_vendor_id_3GPP, IMS_Ro, 0)) {
LM_ERR("Problem adding Vendor specific ID\n");
}
ro_session->hop_by_hop += 1;
if (!Ro_add_cc_request(ccr, RO_CC_STOP, ro_session->hop_by_hop)) {
LM_ERR("Problem adding CC-Request data\n");
}
if (!Ro_add_event_timestamp(ccr, time(NULL))) {
LM_ERR("Problem adding Event-Timestamp data\n");
}
if (!Ro_add_user_equipment_info(ccr, AVP_EPC_User_Equipment_Info_Type_MAC, ro_session->mac)) {
LM_ERR("Problem adding User-Equipment data\n");
}
if (!Ro_add_subscription_id(ccr, subscr.type, &subscr.id)) {
LM_ERR("Problem adding Subscription ID data\n");
}
if (!Ro_add_multiple_service_credit_Control_stop(ccr, used, ro_session->rating_group, ro_session->service_identifier)) {
LM_ERR("Problem adding Multiple Service Credit Control data\n");
}
if (!Ro_add_termination_cause(ccr, TERM_CAUSE_LOGOUT)) {
LM_ERR("problem add Termination cause AVP to STOP record.\n");
}
if (vendor_specific_chargeinfo) {
if (!Ro_add_vendor_specific_termination_cause(ccr, code)) {
LM_ERR("problem add Termination cause AVP to STOP record.\n");
}
if (!Ro_add_vendor_specific_termination_reason(ccr, reason)) {
LM_ERR("problem add Termination cause AVP to STOP record.\n");
}
}
cdpb.AAASessionsUnlock(auth->hash);
if (ro_forced_peer.len > 0) {
ret = cdpb.AAASendMessageToPeer(ccr, &ro_forced_peer, resume_on_termination_ccr, NULL);
} else {
ret = cdpb.AAASendMessage(ccr, resume_on_termination_ccr, NULL);
}
if (ret != 1) {
goto error1;
}
Ro_free_CCR(ro_ccr_data);
counter_inc(ims_charging_cnts_h.final_ccrs);
// counter_add(ims_charging_cnts_h.active_ro_sessions, -1);
return;
error1:
LM_ERR("error on Ro STOP record\n");
Ro_free_CCR(ro_ccr_data);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropCCAccSession(auth);
}
error0:
return;
}
static void resume_on_termination_ccr(int is_timeout, void *param, AAAMessage *cca, long elapsed_msecs) {
Ro_CCA_t *ro_cca_data = NULL;
if (is_timeout) {
counter_inc(ims_charging_cnts_h.ccr_timeouts);
LM_ERR("Transaction timeout - did not get CCA\n");
goto error;
}
counter_inc(ims_charging_cnts_h.ccr_replies_received);
counter_add(ims_charging_cnts_h.ccr_response_time, elapsed_msecs);
if (!cca) {
LM_ERR("Error in termination CCR.\n");
counter_inc(ims_charging_cnts_h.failed_final_ccrs);
return;
}
ro_cca_data = Ro_parse_CCA_avps(cca);
if (ro_cca_data == NULL) {
LM_DBG("Could not parse CCA message response.\n");
counter_inc(ims_charging_cnts_h.failed_final_ccrs);
return;
}
if (ro_cca_data->resultcode != 2001) {
LM_ERR("Got bad CCA result code for STOP record - [%d]\n", ro_cca_data->resultcode);
goto error;
} else {
LM_DBG("Valid CCA response for STOP record\n");
}
counter_inc(ims_charging_cnts_h.successful_final_ccrs);
Ro_free_CCA(ro_cca_data);
if (!is_timeout && cca) {
cdpb.AAAFreeMessage(&cca);
}
return;
error:
counter_inc(ims_charging_cnts_h.failed_final_ccrs);
Ro_free_CCA(ro_cca_data);
if (!is_timeout && cca) {
cdpb.AAAFreeMessage(&cca);
}
}
/**
* Send a CCR to the OCS based on the SIP message (INVITE ONLY)
* @param msg - SIP message
* @param direction - orig|term
* @param reservation_units - units to try to reserve
* @param reservation_units - config route to call when receiving a CCA
* @param tindex - transaction index