int rx_send_aar_register(struct sip_msg *msg, AAASession* auth, saved_transaction_local_t* saved_t_data) {
AAAMessage* aar = 0;
int ret = 0;
AAA_AVP* avp = 0;
char x[4];
str identifier;
str ip;
uint16_t ip_version;
//we get ip and identifier for the auth session data
rx_authsessiondata_t* p_session_data = 0;
p_session_data = (rx_authsessiondata_t*) auth->u.auth.generic_data;
identifier = p_session_data->identifier;
ip = p_session_data->ip;
ip_version = p_session_data->ip_version;
LM_DBG("Send AAR register\n");
aar = cdpb.AAACreateRequest(IMS_Rx, IMS_AAR, Flag_Proxyable, auth);
if (!aar)
goto error;
/*Add AVPs*/
/* Add Auth-Application-Id AVP */
if (!rx_add_auth_application_id_avp(aar, IMS_Rx))
goto error;
if (!rx_add_vendor_specific_application_id_group(aar, IMS_vendor_id_3GPP,
IMS_Rx))
goto error;
/* Add Destination-Realm AVP, if not already there */
avp = cdpb.AAAFindMatchingAVP(aar, aar->avpList.head, AVP_Destination_Realm,
0, AAA_FORWARD_SEARCH);
if (!avp) {
str realm = rx_dest_realm;
if (realm.len && !rx_add_destination_realm_avp(aar, realm))
goto error;
}
/* Add Subscription ID AVP*/
identifier = cscf_get_public_identity(msg);
int identifier_type = AVP_Subscription_Id_Type_SIP_URI; //we only do IMPU now
rx_add_subscription_id_avp(aar, identifier, identifier_type);
/* Add media component description avp for register*/
rx_add_media_component_description_avp_register(aar);
/* Add specific action AVP's */
rx_add_specific_action_avp(aar, 1); // CHARGING_CORRELATION_EXCHANGE
rx_add_specific_action_avp(aar, 2); // INDICATION_OF_LOSS_OF_BEARER
rx_add_specific_action_avp(aar, 3); // INDICATION_RECOVERY_OF_BEARER
rx_add_specific_action_avp(aar, 4); // INDICATION_RELEASE_OF_BEARER
rx_add_specific_action_avp(aar, 5); // INDICATION_ESTABLISHMENT_OF_BEARER (now void)
rx_add_specific_action_avp(aar, 6); // IP-CAN_CHANGE
rx_add_specific_action_avp(aar, 12); // ACCESS_NETWORK_INFO_REPORT
/* Add Framed IP address AVP*/
if (!rx_add_framed_ip_avp(&aar->avpList, ip, ip_version)) {
LM_ERR("Unable to add framed IP AVP\n");
goto error;
}
/* Add Auth lifetime AVP */LM_DBG("auth_lifetime %u\n", rx_auth_expiry); //TODO check why this is 0 all the time
if (rx_auth_expiry) {
set_4bytes(x, rx_auth_expiry);
if (!rx_add_avp(aar, x, 4, AVP_Authorization_Lifetime,
AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
}
if (auth)
cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("sending AAR to PCRF\n");
if (rx_forced_peer.len)
ret = cdpb.AAASendMessageToPeer(aar, &rx_forced_peer,
(void*) async_aar_reg_callback, (void*) saved_t_data);
else
ret = cdpb.AAASendMessage(aar, (void*) async_aar_reg_callback,
(void*) saved_t_data);
return ret;
error:
LM_ERR("unexpected error\n");
if (aar)
cdpb.AAAFreeMessage(&aar);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropAuthSession(auth);
auth = 0;
}
return ret;
}
int rx_send_aar(struct sip_msg *req, struct sip_msg *res,
AAASession* auth, char* direction, saved_transaction_t* saved_t_data) {
AAAMessage* aar = 0;
str identifier;
int identifier_type;
AAA_AVP* avp = 0;
char x[4];
int ret = 0;
str ip;
uint16_t ip_version;
//we get ip and identifier for the auth session data
rx_authsessiondata_t* p_session_data = 0;
p_session_data = (rx_authsessiondata_t*) auth->u.auth.generic_data;
identifier = p_session_data->identifier;
identifier_type = p_session_data->identifier_type;
ip = p_session_data->ip;
ip_version = p_session_data->ip_version;
/* find direction for AAR (orig/term) */
//need this to add the media component details
enum dialog_direction dlg_direction = get_dialog_direction(direction);
if (dlg_direction == DLG_MOBILE_UNKNOWN) {
LM_DBG("Asked to send AAR for unknown direction.....Aborting...\n");
goto error;
}
aar = cdpb.AAACreateRequest(IMS_Rx, IMS_AAR, Flag_Proxyable, auth);
LM_DBG("Created aar request...\n");
if (!aar)
goto error;
/*Adding AVPs*/
LM_DBG("Adding auth app id AVP...\n");
/* Add Auth-Application-Id AVP */
if (!rx_add_auth_application_id_avp(aar, IMS_Rx))
goto error;
if (!rx_add_vendor_specific_application_id_group(aar, IMS_vendor_id_3GPP,
IMS_Rx))
goto error;
LM_DBG("Adding dest realm if not there already...\n");
/* Add Destination-Realm AVP, if not already there */
avp = cdpb.AAAFindMatchingAVP(aar, aar->avpList.head, AVP_Destination_Realm,
0, AAA_FORWARD_SEARCH);
if (!avp) {
str realm = rx_dest_realm;
if (realm.len && !rx_add_destination_realm_avp(aar, realm))
goto error;
}
LM_DBG("Adding AF App identifier...\n");
/* Add AF-Application-Identifier AVP */
str af_id = {0, 0};
af_id = IMS_Serv_AVP_val;
if (!rx_add_avp(aar, af_id.s, af_id.len, AVP_IMS_AF_Application_Identifier,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
LM_DBG("Adding service info status...\n");
/* Add Service-Info-Status AVP, if prelimiary
* by default(when absent): final status is considered*/
if (!res) {
set_4bytes(x,
AVP_EPC_Service_Info_Status_Preliminary_Service_Information);
if (!rx_add_avp(aar, x, 4, AVP_IMS_Service_Info_Status,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
}
/* Add Auth lifetime AVP */LM_DBG("auth_lifetime %u\n", rx_auth_expiry); //TODO check why this is 0 all the time
if (rx_auth_expiry) {
set_4bytes(x, rx_auth_expiry);
if (!rx_add_avp(aar, x, 4, AVP_Authorization_Lifetime,
AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
}
LM_DBG("Adding subscription id...\n");
rx_add_subscription_id_avp(aar, identifier, identifier_type);
LM_DBG("Adding reservation priority...\n");
/* Add Reservation Priority AVP*/
set_4bytes(x, 0);
if (!rx_add_avp(aar, x, 4, AVP_ETSI_Reservation_Priority,
AAA_AVP_FLAG_VENDOR_SPECIFIC, IMS_vendor_id_ETSI,
AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
LM_DBG("Adding media component...\n");
//Note we add this AVP first as it gets the IP address which we need to create the auth session
//Could and maybe should have a separate method that retrieves the IP from SDP - TODO
/*---------- 2. Create and add Media-Component-Description AVP ----------*/
/*
* See 3GPP TS29214
*
* <Media-Component-Description> = {Media-Component-Number}
* [Media-Sub-Component]
* [AF-Application-Identifier]
* [Media-Type]
* [Max-Requested-Bandwidth-UL]
* [Max-Requested-Bandwidth-DL]
* [Flow-Status]
* [Reservation-Priority] (Not used yet)
* [RS-Bandwidth]
* [RR-Bandwidth]
* *[Codec-Data]
*/
add_media_components(aar, req, res, dlg_direction, auth);
LM_DBG("Adding framed ip address [%.*s]\n", ip.len, ip.s);
/* Add Framed IP address AVP*/
if (!rx_add_framed_ip_avp(&aar->avpList, ip, ip_version)) {
LM_ERR("Unable to add framed IP AVP\n");
goto error;
}
/* Add specific action AVP's */
rx_add_specific_action_avp(aar, 1); // CHARGING_CORRELATION_EXCHANGE
rx_add_specific_action_avp(aar, 2); // INDICATION_OF_LOSS_OF_BEARER
rx_add_specific_action_avp(aar, 3); // INDICATION_RECOVERY_OF_BEARER
rx_add_specific_action_avp(aar, 4); // INDICATION_RELEASE_OF_BEARER
rx_add_specific_action_avp(aar, 5); // INDICATION_ESTABLISHMENT_OF_BEARER (now void)
rx_add_specific_action_avp(aar, 6); // IP-CAN_CHANGE
rx_add_specific_action_avp(aar, 12); // ACCESS_NETWORK_INFO_REPORT
show_callsessiondata(p_session_data);
LM_DBG("Unlocking AAA session...\n");
if (auth)
cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("sending AAR to PCRF\n");
if (rx_forced_peer.len)
ret = cdpb.AAASendMessageToPeer(aar, &rx_forced_peer,
(void*) async_aar_callback, (void*) saved_t_data);
else
ret = cdpb.AAASendMessage(aar, (void*) async_aar_callback,
(void*) saved_t_data);
return ret;
error:
LM_ERR("unexpected error\n");
if (aar)
cdpb.AAAFreeMessage(&aar);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropAuthSession(auth);
auth = 0;
}
return ret;
}
/**
* Sends the Authorization Authentication Request for Register messages
* @param req - SIP Register msg
* @param rx_auth_data - the returned rx auth data
* @param ip - ip address extracted from contact to register
* @param ip_version - AF_INET or AF_INET6
* @returns int >0 if sent AAR successfully, otherwise 0
*/
int rx_send_aar_register(struct sip_msg *msg, AAASession* auth, str *ip,
uint16_t *ip_version, str *aor, saved_transaction_local_t* saved_t_data) {
AAAMessage* aar = 0;
int ret = 0;
AAA_AVP* avp = 0;
char x[4];
LM_DBG("Send AAR register\n");
aar = cdpb.AAACreateRequest(IMS_Rx, IMS_AAR, Flag_Proxyable, auth);
if (!aar)
goto error;
/*Add AVPs*/
/* Add Auth-Application-Id AVP */
if (!rx_add_auth_application_id_avp(aar, IMS_Rx))
goto error;
if (!rx_add_vendor_specific_application_id_group(aar, IMS_vendor_id_3GPP,
IMS_Rx))
goto error;
/* Add Destination-Realm AVP, if not already there */
avp = cdpb.AAAFindMatchingAVP(aar, aar->avpList.head, AVP_Destination_Realm,
0, AAA_FORWARD_SEARCH);
if (!avp) {
str realm = rx_dest_realm;
if (realm.len && !rx_add_destination_realm_avp(aar, realm))
goto error;
}
/* Add Subscription ID AVP*/
str identifier;
cscf_get_from_uri(msg, &identifier);
int identifier_type = AVP_Subscription_Id_Type_SIP_URI; //we only do IMPU now
rx_add_subscription_id_avp(aar, identifier, identifier_type);
/* Add media component description avp for register*/
rx_add_media_component_description_avp_register(aar);
/* Add Framed IP address AVP*/
if (!rx_add_framed_ip_avp(&aar->avpList, *ip, *ip_version)) {
LM_ERR("Unable to add framed IP AVP\n");
goto error;
}
/* Add Auth lifetime AVP */LM_DBG("auth_lifetime %u\n", rx_auth_expiry); //TODO check why this is 0 all the time
if (rx_auth_expiry) {
set_4bytes(x, rx_auth_expiry);
if (!rx_add_avp(aar, x, 4, AVP_Authorization_Lifetime,
AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
}
if (auth)
cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("sending AAR to PCRF\n");
if (rx_forced_peer.len)
ret = cdpb.AAASendMessageToPeer(aar, &rx_forced_peer,
(void*) async_cdp_callback, (void*) saved_t_data);
else
ret = cdpb.AAASendMessage(aar, (void*) async_cdp_callback,
(void*) saved_t_data);
return ret;
error:
LM_ERR("unexpected error\n");
if (aar)
cdpb.AAAFreeMessage(&aar);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropAuthSession(auth);
auth = 0;
}
return ret;
}
int rx_send_aar_update_no_video(AAASession* auth) {
AAAMessage* aar = 0;
str identifier;
int identifier_type;
AAA_AVP* avp = 0;
char x[4];
int ret = 0;
str recv_ip;
uint16_t ip_version;
//we get ip and identifier for the auth session data
rx_authsessiondata_t* p_session_data = 0;
p_session_data = (rx_authsessiondata_t*) auth->u.auth.generic_data;
identifier = p_session_data->identifier;
identifier_type = p_session_data->identifier_type;
recv_ip = p_session_data->ip;
ip_version = p_session_data->ip_version;
aar = cdpb.AAACreateRequest(IMS_Rx, IMS_AAR, Flag_Proxyable, auth);
LM_DBG("Sending AAR update to remove a video bearer\n");
show_callsessiondata(p_session_data);
if (!aar)
goto error;
/*Adding AVPs*/
LM_DBG("Adding auth app id AVP...\n");
/* Add Auth-Application-Id AVP */
if (!rx_add_auth_application_id_avp(aar, IMS_Rx))
goto error;
if (!rx_add_vendor_specific_application_id_group(aar, IMS_vendor_id_3GPP,
IMS_Rx))
goto error;
LM_DBG("Adding dest realm if not there already...\n");
/* Add Destination-Realm AVP, if not already there */
avp = cdpb.AAAFindMatchingAVP(aar, aar->avpList.head, AVP_Destination_Realm,
0, AAA_FORWARD_SEARCH);
if (!avp) {
str realm = rx_dest_realm;
if (realm.len && !rx_add_destination_realm_avp(aar, realm))
goto error;
}
LM_DBG("Adding AF App identifier...\n");
/* Add AF-Application-Identifier AVP */
str af_id = {0, 0};
af_id = IMS_Serv_AVP_val;
if (!rx_add_avp(aar, af_id.s, af_id.len, AVP_IMS_AF_Application_Identifier,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
LM_DBG("Adding service info status...\n");
/* Add Service-Info-Status AVP, if prelimiary
* by default(when absent): final status is considered*/
set_4bytes(x,
AVP_EPC_Service_Info_Status_Preliminary_Service_Information);
if (!rx_add_avp(aar, x, 4, AVP_IMS_Service_Info_Status,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
/* Add Auth lifetime AVP */LM_DBG("auth_lifetime %u\n", rx_auth_expiry); //TODO check why this is 0 all the time
if (rx_auth_expiry) {
set_4bytes(x, rx_auth_expiry);
if (!rx_add_avp(aar, x, 4, AVP_Authorization_Lifetime,
AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
}
LM_DBG("Adding subscription id...\n");
rx_add_subscription_id_avp(aar, identifier, identifier_type);
LM_DBG("Adding reservation priority...\n");
/* Add Reservation Priority AVP*/
set_4bytes(x, 0);
if (!rx_add_avp(aar, x, 4, AVP_ETSI_Reservation_Priority,
AAA_AVP_FLAG_VENDOR_SPECIFIC, IMS_vendor_id_ETSI,
AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
LM_DBG("Adding media component...\n");
//Note we add this AVP first as it gets the IP address which we need to create the auth session
//Could and maybe should have a separate method that retrieves the IP from SDP - TODO
/*---------- 2. Create and add Media-Component-Description AVP ----------*/
/*
* See 3GPP TS29214
*
* <Media-Component-Description> = {Media-Component-Number}
* [Media-Sub-Component]
* [AF-Application-Identifier]
* [Media-Type]
* [Max-Requested-Bandwidth-UL]
* [Max-Requested-Bandwidth-DL]
* [Flow-Status]
* [Reservation-Priority] (Not used yet)
* [RS-Bandwidth]
* [RR-Bandwidth]
* *[Codec-Data]
*/
add_media_components_using_current_flow_description(aar, p_session_data);
LM_DBG("Adding framed ip address [%.*s]\n", recv_ip.len, recv_ip.s);
/* Add Framed IP address AVP*/
if (!rx_add_framed_ip_avp(&aar->avpList, recv_ip, ip_version)) {
LM_ERR("Unable to add framed IP AVP\n");
goto error;
}
LM_DBG("Unlocking AAA session...\n");
if (auth)
cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("sending AAR to PCRF\n");
if (rx_forced_peer.len)
ret = cdpb.AAASendMessageToPeer(aar, &rx_forced_peer,
NULL, NULL);
else
ret = cdpb.AAASendMessage(aar, NULL,
NULL);
return ret;
error:
LM_ERR("unexpected error\n");
if (aar)
cdpb.AAAFreeMessage(&aar);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropAuthSession(auth);
auth = 0;
}
return ret;
}
AAAMessage *rx_send_aar(struct sip_msg *req, struct sip_msg *res,
AAASession* auth, str* callid, str* ftag, str* ttag, char* direction,
rx_authsessiondata_t **rx_authdata) {
AAAMessage* aar = 0;
AAAMessage* aaa = 0;
AAA_AVP* avp = 0;
char x[4];
str ip;
uint16_t ip_version;
/* find direction for AAR (orig/term) */
//need this to add the media component details
enum dialog_direction dlg_direction = get_dialog_direction(direction);
if (dlg_direction == DLG_MOBILE_UNKNOWN) {
LM_DBG("Asked to send AAR for unknown direction.....Aborting...\n");
goto error;
}
aar = cdpb.AAACreateRequest(IMS_Rx, IMS_AAR, Flag_Proxyable, auth);
LM_DBG("Created aar request...\n");
if (!aar)
goto error;
/*Adding AVPs*/
LM_DBG("Adding auth app id AVP...\n");
/* Add Auth-Application-Id AVP */
if (!rx_add_auth_application_id_avp(aar, IMS_Rx))
goto error;
if (!rx_add_vendor_specific_application_id_group(aar, IMS_vendor_id_3GPP,
IMS_Rx))
goto error;
LM_DBG("Adding dest realm if not there already...\n");
/* Add Destination-Realm AVP, if not already there */
avp = cdpb.AAAFindMatchingAVP(aar, aar->avpList.head, AVP_Destination_Realm,
0, AAA_FORWARD_SEARCH);
if (!avp) {
str realm = rx_dest_realm;
if (realm.len && !rx_add_destination_realm_avp(aar, realm))
goto error;
}
LM_DBG("Adding AF App identifier...\n");
/* Add AF-Application-Identifier AVP */
str af_id = {0, 0};
af_id = IMS_Serv_AVP_val;
if (!rx_add_avp(aar, af_id.s, af_id.len, AVP_IMS_AF_Application_Identifier,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
LM_DBG("Adding service info status...\n");
/* Add Service-Info-Status AVP, if prelimiary
* by default(when absent): final status is considered*/
if (!res) {
set_4bytes(x,
AVP_EPC_Service_Info_Status_Preliminary_Service_Information);
if (!rx_add_avp(aar, x, 4, AVP_IMS_Service_Info_Status,
AAA_AVP_FLAG_MANDATORY, IMS_vendor_id_3GPP, AVP_DUPLICATE_DATA,
__FUNCTION__))
goto error;
}
/* Add Auth lifetime AVP */LM_DBG("auth_lifetime %u\n", rx_auth_expiry); //TODO check why this is 0 all the time
if (rx_auth_expiry) {
set_4bytes(x, rx_auth_expiry);
if (!rx_add_avp(aar, x, 4, AVP_Authorization_Lifetime,
AAA_AVP_FLAG_MANDATORY, 0, AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
}
LM_DBG("Adding subscription id...\n");
/* Add Subscription ID AVP*/
int identifier_type = AVP_Subscription_Id_Type_SIP_URI; //we only do IMPU now
//to get the SIP URI I use the dlg direction - if its mo I get the from uri from the req, if its mt I get the to uri from the req
str identifier;
if (dlg_direction == DLG_MOBILE_ORIGINATING) {
cscf_get_from_uri(req, &identifier);
} else {
cscf_get_to_uri(req, &identifier);
}
rx_add_subscription_id_avp(aar, identifier, identifier_type);
LM_DBG("Adding reservation priority...\n");
/* Add Reservation Priority AVP*/
set_4bytes(x, 0);
if (!rx_add_avp(aar, x, 4, AVP_ETSI_Reservation_Priority,
AAA_AVP_FLAG_VENDOR_SPECIFIC, IMS_vendor_id_ETSI,
AVP_DUPLICATE_DATA, __FUNCTION__))
goto error;
LM_DBG("Adding media component...\n");
//Note we add this AVP first as it gets the IP address which we need to create the auth session
//Could and maybe should have a separate method that retrieves the IP from SDP - TODO
/*---------- 2. Create and add Media-Component-Description AVP ----------*/
/*
* See 3GPP TS29214
*
* <Media-Component-Description> = {Media-Component-Number}
* [Media-Sub-Component]
* [AF-Application-Identifier]
* [Media-Type]
* [Max-Requested-Bandwidth-UL]
* [Max-Requested-Bandwidth-DL]
* [Flow-Status]
* [Reservation-Priority] (Not used yet)
* [RS-Bandwidth]
* [RR-Bandwidth]
* *[Codec-Data]
*/
add_media_components(aar, req, res, dlg_direction, &ip, &ip_version);
LM_DBG("Adding framed ip address [%.*s]\n", ip.len, ip.s);
/* Add Framed IP address AVP*/
if (!rx_add_framed_ip_avp(&aar->avpList, ip, ip_version)) {
LM_ERR("Unable to add framed IP AVP\n");
goto error;
}
LM_DBG("Unlocking AAA session...\n");
if (auth)
cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("sending AAR to PCRF\n");
if (rx_forced_peer.len)
aaa = cdpb.AAASendRecvMessageToPeer(aar, &rx_forced_peer);
else
aaa = cdpb.AAASendRecvMessage(aar);
return aaa;
error:
LM_ERR("unexpected error\n");
if (aar)
cdpb.AAAFreeMessage(&aar);
if (auth) {
cdpb.AAASessionsUnlock(auth->hash);
cdpb.AAADropAuthSession(auth);
auth = 0;
}
return NULL;
}