static int dcca_cb( struct msg ** msg, struct avp * avp, struct session * sess, void * opaque, enum disp_action * act)
{
struct msg * m;
struct avp_hdr * val_app_id = NULL, * val_rt = NULL, * val_rn = NULL, * val_io = NULL, * val_oo = NULL, *val_imsi = NULL;
struct avp *groupedavp = NULL, *groupedavp2 = NULL;
union avp_value validity_time, total_octets, result_code, rating_group;
struct avp * a = NULL, * aa = NULL;
int input_octets = 0, output_octets = 0;
char* imsi = NULL;
LOG_N("CCR processor");
TRACE_ENTRY("%p %p %p %p", msg, avp, sess, act);
if (msg == NULL)
return EINVAL;
// // Read AVPs from request
//
// CHECK_FCT( dcca_read_avps_from_message(*msg) );
// Read AVPs
CHECK_FCT( dcca_cb_read(msg, dcca_dict.Auth_Application_Id, &val_app_id) );
CHECK_FCT( dcca_cb_read(msg, dcca_dict.CC_Request_Type, &val_rt) );
CHECK_FCT( dcca_cb_read(msg, dcca_dict.CC_Request_Number, &val_rn) );
// Read IMSI
CHECK_FCT( get_imsi(*msg, &a) );
if (a) {
CHECK_FCT( fd_msg_avp_hdr( a, &val_imsi ) );
int len = val_imsi->avp_value->os.len;
imsi = malloc(len * sizeof(char));
int i;
for (i = 0; i < len; i++) {
imsi[i] = val_imsi->avp_value->os.data[i];
}
imsi[len] = 0;
}
// Read Input / Output Octets
CHECK_FCT( fd_msg_search_avp ( *msg, dcca_dict.Multiple_Services_Credit_Control, &a) );
if (a) {
CHECK_FCT( avp_search_child ( a, dcca_dict.Used_Service_Unit, &a) );
if (a) {
CHECK_FCT( avp_search_child ( a, dcca_dict.CC_Input_Octets, &aa) );
if (aa) {
CHECK_FCT( fd_msg_avp_hdr( aa, &val_io ) );
input_octets = val_io->avp_value->i32;
}
CHECK_FCT( avp_search_child ( a, dcca_dict.CC_Output_Octets, &aa) );
if (aa) {
CHECK_FCT( fd_msg_avp_hdr( aa, &val_oo ) );
output_octets = val_oo->avp_value->i32;
}
}
}
LOG_N("IMSI: %s", imsi);
LOG_N("IN: %i", input_octets);
LOG_N("OUT: %i", output_octets);
// Create response message
CHECK_FCT( fd_msg_new_answer_from_req ( fd_g_config->cnf_dict, msg, 0 ) );
m = *msg;
CHECK_FCT( fd_msg_rescode_set( m, "DIAMETER_SUCCESS", NULL, NULL, 1 ) );
// Put params to response
CHECK_FCT( dcca_cb_put(m, dcca_dict.Auth_Application_Id, val_app_id) );
CHECK_FCT( dcca_cb_put(m, dcca_dict.CC_Request_Type, val_rt) );
CHECK_FCT( dcca_cb_put(m, dcca_dict.CC_Request_Number, val_rn) );
// Multiple Services CC Group
total_octets.i64 = rest_api_vsca(imsi, input_octets, output_octets);
CHECK_FCT( fd_msg_avp_new ( dcca_dict.Multiple_Services_Credit_Control, 0, &groupedavp ) );
// Granted Service Unit
CHECK_FCT( fd_msg_avp_new ( dcca_dict.Granted_Service_Unit, 0, &groupedavp2 ) );
CHECK_FCT( dcca_cb_put_value_to_avp(groupedavp2, dcca_dict.CC_Total_Octets, &total_octets) );
CHECK_FCT( fd_msg_avp_add( groupedavp, MSG_BRW_LAST_CHILD, groupedavp2 ) );
// Result code
result_code.i32 = 2001;
CHECK_FCT( dcca_cb_put_value_to_avp(groupedavp, dcca_dict.Result_Code, &result_code) );
// Rating group
rating_group.i32 = 1001;
CHECK_FCT( dcca_cb_put_value_to_avp(groupedavp, dcca_dict.Rating_Group, &rating_group) );
// Validity Time
validity_time.i32 = 60;
CHECK_FCT( dcca_cb_put_value_to_avp(groupedavp, dcca_dict.Validity_Time, &validity_time) );
CHECK_FCT( fd_msg_avp_add( m, MSG_BRW_LAST_CHILD, groupedavp ) );
// Send the answer
*act = DISP_ACT_SEND;
return 0;
}
/* Callback for incoming Test-Request messages */
static int ta_tr_cb( struct msg ** msg, struct avp * avp, struct session * sess, void * opaque, enum disp_action * act)
{
struct msg *ans, *req;
struct avp * src = NULL;
struct avp_hdr * hdr = NULL;
UsageServerSession* mi;
TRACE_ENTRY("%p %p %p %p", msg, avp, sess, act);
if (msg == NULL)
return EINVAL;
/* Value of Origin-Host */
fprintf(stderr, "Request received from ");
CHECK_FCT( fd_msg_search_avp ( *msg, ta_origin_host, &src) );
if (src) {
CHECK_FCT( fd_msg_avp_hdr( src, &hdr ) );
fprintf(stderr, "'%.*s'", (int)hdr->avp_value->os.len, hdr->avp_value->os.data);
} else {
fprintf(stderr, "no_Origin-Host");
}
fprintf(stderr, ", replying...\n");
//get or create the session/session state
req = *msg;
/* Create answer header */
CHECK_FCT( fd_msg_new_answer_from_req ( fd_g_config->cnf_dict, msg, 0 ) );
ans = *msg;
d_req_type reqType;
//get the op type
CHECK_FCT( fd_msg_search_avp ( req, ta_avp_optype, &src) );
CHECK_FCT( fd_msg_avp_hdr( src, &hdr ) );
reqType = hdr->avp_value->i32;
if (reqType==d_start){
//create the session state
mi= usageserver_session_alloc();
mi->leftQuota = DUMMY_INIT_QUOTA;
}else{
//get the session state
fd_sess_state_retrieve(ta_cli_reg, sess, &mi);
}
if (reqType!=d_start){//for update, stop, need to update the leftQuota
//update the left quota in session state, according to the used quota avp in req
CHECK_FCT( fd_msg_search_avp ( req, ta_avp_usedQuota, &src) );
CHECK_FCT( fd_msg_avp_hdr( src, &hdr ) );
uint64_t usedQuota = hdr->avp_value->u64;
if (mi->leftQuota>=usedQuota){
mi->leftQuota-=usedQuota;
}else{
fprintf(stderr, "fatal, the used should not be larger then the granted last time.");
mi->leftQuota=0;
}
}
if (reqType!=d_stop){//for start, update, need to reply with grantedQuota
//set the granted quota AVP according to requested quota and left quota in session state
CHECK_FCT( fd_msg_search_avp ( req, ta_avp_requestQuota, &src) );
CHECK_FCT( fd_msg_avp_hdr( src, &hdr ) );
uint64_t reqAmt = hdr->avp_value->u64;
uint64_t grantAmt=0;
if (mi->leftQuota>=reqAmt){
grantAmt = reqAmt;
}else{
grantAmt = mi->leftQuota;
}
hdr->avp_value->u64 = grantAmt;
CHECK_FCT( fd_msg_avp_new ( ta_avp_grantedQuota, 0, &avp ) );
CHECK_FCT( fd_msg_avp_setvalue( avp, hdr->avp_value ) );
CHECK_FCT( fd_msg_avp_add( ans, MSG_BRW_LAST_CHILD, avp ) );
fprintf(stderr, "add granted quota avp, %llu.\n", grantAmt);
}
fprintf(stderr, "session:leftQuota:%llu\n", mi->leftQuota);
/* Set the Origin-Host, Origin-Realm, Result-Code AVPs */
CHECK_FCT( fd_msg_rescode_set( ans, "DIAMETER_SUCCESS", NULL, NULL, 1 ) );
//save the session state
fd_sess_state_store(ta_cli_reg, sess, &mi);
/* Send the answer */
CHECK_FCT( fd_msg_send( msg, NULL, NULL ) );
return 0;
}
/* Callback for incoming Base Accounting Accounting-Request messages */
static int acct_cb( struct msg ** msg, struct avp * avp, struct session * sess, void * opaque, enum disp_action * act)
{
struct msg * m;
struct avp * a = NULL;
struct avp_hdr * art=NULL, *arn=NULL; /* We keep a pointer on the Accounting-Record-{Type, Number} AVPs from the query */
struct acct_record_list rl;
TRACE_ENTRY("%p %p %p %p", msg, avp, sess, act);
if (msg == NULL)
return EINVAL;
m = *msg;
/* Prepare a new record list */
CHECK_FCT( acct_rec_prepare( &rl ) );
/* Maps the AVPs from the query with this record list */
CHECK_FCT( acct_rec_map( &rl, m ) );
/* Check that at least one AVP was mapped */
CHECK_FCT( acct_rec_validate( &rl ) );
/* Now, save these mapped AVPs in the database */
CHECK_FCT( acct_db_insert( &rl ) );
acct_rec_empty( &rl );
/* OK, we can send a positive reply now */
/* Get Accounting-Record-{Number,Type} values */
CHECK_FCT( fd_msg_search_avp ( m, acct_dict.Accounting_Record_Type, &a) );
if (a) {
CHECK_FCT( fd_msg_avp_hdr( a, &art ) );
}
CHECK_FCT( fd_msg_search_avp ( m, acct_dict.Accounting_Record_Number, &a) );
if (a) {
CHECK_FCT( fd_msg_avp_hdr( a, &arn ) );
}
/* Create the answer message */
CHECK_FCT( fd_msg_new_answer_from_req ( fd_g_config->cnf_dict, msg, 0 ) );
m = *msg;
/* Set the Origin-Host, Origin-Realm, Result-Code AVPs */
CHECK_FCT( fd_msg_rescode_set( m, "DIAMETER_SUCCESS", NULL, NULL, 1 ) );
/* Add the mandatory AVPs in the ACA */
if (art) {
CHECK_FCT( fd_msg_avp_new ( acct_dict.Accounting_Record_Type, 0, &a ) );
CHECK_FCT( fd_msg_avp_setvalue( a, art->avp_value ) );
CHECK_FCT( fd_msg_avp_add( m, MSG_BRW_LAST_CHILD, a ) );
}
if (arn) {
CHECK_FCT( fd_msg_avp_new ( acct_dict.Accounting_Record_Number, 0, &a ) );
CHECK_FCT( fd_msg_avp_setvalue( a, arn->avp_value ) );
CHECK_FCT( fd_msg_avp_add( m, MSG_BRW_LAST_CHILD, a ) );
}
/* Send the answer */
*act = DISP_ACT_SEND;
return 0;
}