void Send_ASR(cdp_session_t* s, AAAMessage* msg) {
AAAMessage *asr = 0;
AAA_AVP *avp = 0;
peer *p = 0;
char x[4];
LM_DBG("Send_ASR() : sending ASR\n");
asr = AAACreateRequest(s->application_id, IMS_ASR, Flag_Proxyable, s);
if (!asr) {
LM_ERR("Send_ASR(): error creating ASR!\n");
return;
}
set_4bytes(x, s->application_id);
avp = AAACreateAVP(AVP_Auth_Application_Id, AAA_AVP_FLAG_MANDATORY, 0, x, 4, AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(asr, avp, asr->avpList.tail);
set_4bytes(x, 3); // Not specified
avp = AAACreateAVP(AVP_IMS_Abort_Cause, AAA_AVP_FLAG_MANDATORY, 0, x, 4, AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(asr, avp, asr->avpList.tail);
//todo - add all the other avps
p = get_routing_peer(s, asr);
if (!p) {
LM_ERR("unable to get routing peer in Send_ASR \n");
if (asr) AAAFreeMessage(&asr); //needed in frequency
}
if (!peer_send_msg(p, asr)) {
if (asr) AAAFreeMessage(&asr); //needed in frequency
} else
LM_DBG("success sending ASR\n");
}
/**
* Send a Capability Exchange Request.
* \note Must be called with a lock on the peer.
* @param p - the peer to send to
*/
void I_Snd_CER(peer *p)
{
AAAMessage *cer=0;
// AAA_AVP *avp;
unsigned long ip;
struct sockaddr_in addr;
socklen_t addrlen;
char x[6];
cer = AAANewMessage(Code_CE,0,0,0);
if (!cer) return;
cer->hopbyhopId = next_hopbyhop();
cer->endtoendId = next_endtoend();
addrlen = sizeof(struct sockaddr_in);
if (getsockname(p->I_sock,(struct sockaddr*) &addr, &addrlen) == -1) {
LOG(L_ERR,"ERROR:I_Snd_CER(): Error on finding local host address > %s\n",strerror(errno));
}else{
set_2bytes(x,1);
ip = htonl(addr.sin_addr.s_addr);
set_4bytes(x+2,ip);
AAACreateAndAddAVPToMessage(cer,AVP_Host_IP_Address,AAA_AVP_FLAG_MANDATORY,0,x,6);
}
set_4bytes(x,config->vendor_id);
AAACreateAndAddAVPToMessage(cer,AVP_Vendor_Id,AAA_AVP_FLAG_MANDATORY,0,x,4);
AAACreateAndAddAVPToMessage(cer,AVP_Product_Name,AAA_AVP_FLAG_MANDATORY,0,config->product_name.s,config->product_name.len);
Snd_CE_add_applications(cer,p);
// peer_send(p,p->I_sock,cer,1);
peer_send_msg(p,cer);
}
/**
* Sends a Disconnect Peer Answer.
* \note Must be called with a lock on the peer.
* @param p - the peer to send to
* @param dpr - the DPR message
* @param result_code - the Result-Code to attach to DPA
* @param sock - socket to send on
*/
void Snd_DPA(peer *p,AAAMessage *dpr,int result_code,int sock)
{
AAAMessage *dpa;
dpa = AAANewMessage(Code_DP,0,0,dpr);
if (dpa) peer_send_msg(p,dpa);
AAAFreeMessage(&dpr);
}
/**
* Sends a Disconnect Peer Request.
* \note Must be called with a lock on the peer.
* @param p - the peer to send to
*/
void Snd_DPR(peer *p)
{
AAAMessage *dpr=0;
char x[4];
dpr = AAANewMessage(Code_DP,0,0,0);
if (!dpr) return;
dpr->hopbyhopId = next_hopbyhop();
dpr->endtoendId = next_endtoend();
set_4bytes(x,0/*busy*/);
AAACreateAndAddAVPToMessage(dpr,AVP_Disconnect_Cause,AAA_AVP_FLAG_MANDATORY,0,x,4);
if (p->state==I_Open)
peer_send_msg(p,dpr);
else
peer_send_msg(p,dpr);
}
void Send_STR(cdp_session_t* s, AAAMessage* msg)
{
AAAMessage *str=0;
AAA_AVP *avp=0;
peer *p=0;
char x[4];
LOG(L_DBG, "sending STR\n");
//if (msg) LOG(L_DBG,"Send_STR() : sending STR for %d, flags %#1x endtoend %u hopbyhop %u\n",msg->commandCode,msg->flags,msg->endtoendId,msg->hopbyhopId);
//else LOG(L_DBG,"Send_STR() called from AAATerminateAuthSession or some other event\n");
str = AAACreateRequest(s->application_id,IMS_STR,Flag_Proxyable,s);
if (!str) {
LOG(L_ERR,"ERR:Send_STR(): error creating STR!\n");
return;
}
if(!dup_routing_avps(msg, str)){
LOG(L_ERR,"ERR:Send_STR(): error duplicating routing AVPs!\n");
AAAFreeMessage(&str);
return;
}
if(s->vendor_id!=0 && !add_vendor_specific_application_id_group(str,s->vendor_id,s->application_id)){
LOG(L_ERR,"ERR:Send_STR(): error adding Vendor-Id-Specific-Application-Id Group!\n");
AAAFreeMessage(&str);
return;
}
set_4bytes(x,s->application_id);
avp = AAACreateAVP(AVP_Auth_Application_Id,AAA_AVP_FLAG_MANDATORY,0,x,4,AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(str,avp,str->avpList.tail);
set_4bytes(x,4); // Diameter_administrative
avp = AAACreateAVP(AVP_Termination_Cause,AAA_AVP_FLAG_MANDATORY,0,x,4,AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(str,avp,str->avpList.tail);
//todo - add all the other avps
p = get_routing_peer(str);
if (!p) {
LOG(L_ERR,"unable to get routing peer in Send_STR \n");
if (str) AAAFreeMessage(&str); //needed in frequency
return;
}
//if (str) LOG(L_CRIT,"Send_STR() : sending STR %d, flags %#1x endtoend %u hopbyhop %u\n",str->commandCode,str->flags,str->endtoendId,str->hopbyhopId);
if (!peer_send_msg(p,str))
{
LOG(L_DBG,"Send_STR peer_send_msg return error!\n");
if (str) AAAFreeMessage(&str); //needed in frequency
} else {
LOG(L_DBG,"success sending STR\n");
}
}
/**
* Sends a Diameter Watch-dog Answer.
* \note Must be called with a lock on the peer.
* @param p - the peer that the DWR was received from
* @param dwr - the DWR message
* @param result_code - the Result-Code to attach to DWA
* @param sock - socket to send on
*/
void Snd_DWA(peer *p,AAAMessage *dwr,int result_code,int sock)
{
AAAMessage *dwa;
char x[4];
dwa = AAANewMessage(Code_DW,0,0,dwr);
if (!dwa) goto done;
set_4bytes(x,result_code);
AAACreateAndAddAVPToMessage(dwa,AVP_Result_Code,AAA_AVP_FLAG_MANDATORY,0,x,4);
peer_send_msg(p,dwa);
done:
AAAFreeMessage(&dwr);
}
/**
* Send a Capability Exchange Request.
* \note Must be called with a lock on the peer.
* @param p - the peer to send to
*/
void I_Snd_CER(peer *p)
{
AAAMessage *cer=0;
// AAA_AVP *avp;
unsigned long ip;
union {
struct sockaddr addr;
struct sockaddr_in in;
struct sockaddr_in6 in6;
} addr_u ;
socklen_t addrlen;
char x[18];
cer = AAANewMessage(Code_CE,0,0,0);
if (!cer) return;
cer->hopbyhopId = next_hopbyhop();
cer->endtoendId = next_endtoend();
addrlen = sizeof(addr_u);
if (getsockname(p->I_sock,&(addr_u.addr), &addrlen) == -1) {
LM_ERR("I_Snd_CER(): Error on finding local host address > %s\n",strerror(errno));
}else{
switch(addr_u.addr.sa_family){
case AF_INET:
set_2bytes(x,1);
ip = htonl(addr_u.in.sin_addr.s_addr);
set_4bytes(x+2,ip);
AAACreateAndAddAVPToMessage(cer,AVP_Host_IP_Address,AAA_AVP_FLAG_MANDATORY,0,x,6);
break;
case AF_INET6:
set_2bytes(x,2);
memcpy(x+2,addr_u.in6.sin6_addr.s6_addr,16);
AAACreateAndAddAVPToMessage(cer,AVP_Host_IP_Address,AAA_AVP_FLAG_MANDATORY,0,x,18);
break;
default:
LM_ERR("I_Snd_CER(): unknown address type with family %d\n",addr_u.addr.sa_family);
}
}
set_4bytes(x,config->vendor_id);
AAACreateAndAddAVPToMessage(cer,AVP_Vendor_Id,AAA_AVP_FLAG_MANDATORY,0,x,4);
AAACreateAndAddAVPToMessage(cer,AVP_Product_Name,AAA_AVP_FLAG_MANDATORY,0,config->product_name.s,config->product_name.len);
Snd_CE_add_applications(cer,p);
// peer_send(p,p->I_sock,cer,1);
peer_send_msg(p,cer);
}
void Send_ASA(cdp_session_t* s, AAAMessage* msg)
{
AAAMessage *asa;
char x[4];
AAA_AVP *avp;
LOG(L_INFO,"Send_ASA(): sending ASA\n");
if (!s) {
//send an ASA for UNKNOWN_SESSION_ID - use AAASendMessage()
// msg is the ASR received
asa = AAANewMessage(IMS_ASA,0,0,msg);
if (!asa) return;
set_4bytes(x,AAA_SUCCESS);
AAACreateAndAddAVPToMessage(asa,AVP_Result_Code,AAA_AVP_FLAG_MANDATORY,0,x,4);
AAASendMessage(asa,0,0);
}else{
// send... many cases... maybe not needed.
// for now we do the same
asa = AAANewMessage(IMS_ASA,0,0,msg);
if (!asa) return;
set_4bytes(x,AAA_SUCCESS);
AAACreateAndAddAVPToMessage(asa,AVP_Result_Code,AAA_AVP_FLAG_MANDATORY,0,x,4);
avp = AAAFindMatchingAVP(msg,0,AVP_Origin_Host,0,0);
if (avp) {
// This is because AAASendMessage is not going to find a route to the
// the PCRF because TS 29.214 says no Destination-Host and no Auth-Application-Id
// in the ASA
LOG(L_INFO,"sending ASA to peer %.*s\n",avp->data.len,avp->data.s);
peer *p;
p = get_peer_by_fqdn(&avp->data);
if (!peer_send_msg(p,asa)) {
if (asa) AAAFreeMessage(&asa); //needed in frequency
} else
LOG(L_INFO,"success sending ASA\n");
}else if (!AAASendMessage(asa,0,0)) {
LOG(L_ERR,"Send_ASA() : error sending ASA\n");
}
}
}
void Send_STR(cdp_session_t* s, AAAMessage* msg) {
AAAMessage *str = 0;
AAA_AVP *avp = 0;
peer *p = 0;
char x[4];
LM_DBG("sending STR\n");
//if (msg) LM_DBG("Send_STR() : sending STR for %d, flags %#1x endtoend %u hopbyhop %u\n",msg->commandCode,msg->flags,msg->endtoendId,msg->hopbyhopId);
//else LM_DBG("Send_STR() called from AAATerminateAuthSession or some other event\n");
str = AAACreateRequest(s->application_id, IMS_STR, Flag_Proxyable, s);
if (!str) {
LM_ERR("Send_STR(): error creating STR!\n");
return;
}
if (!dup_routing_avps(msg, str)) {
LM_ERR("Send_STR(): error duplicating routing AVPs!\n");
AAAFreeMessage(&str);
return;
}
if (s->vendor_id != 0 && !add_vendor_specific_application_id_group(str, s->vendor_id, s->application_id)) {
LM_ERR("Send_STR(): error adding Vendor-Id-Specific-Application-Id Group!\n");
AAAFreeMessage(&str);
return;
}
//Richard added this - if timers expire dest realm is not here!
LM_DBG("Adding dest realm if not there already...\n");
LM_DBG("Destination realm: [%.*s] \n", s->dest_realm.len, s->dest_realm.s);
/* Add Destination-Realm AVP, if not already there */
avp = AAAFindMatchingAVP(str, str->avpList.head, AVP_Destination_Realm, 0, AAA_FORWARD_SEARCH);
if (!avp) {
avp = AAACreateAVP(AVP_Destination_Realm, AAA_AVP_FLAG_MANDATORY, 0,
s->dest_realm.s, s->dest_realm.len, AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(str, avp, str->avpList.tail);
}
set_4bytes(x, s->application_id);
avp = AAACreateAVP(AVP_Auth_Application_Id, AAA_AVP_FLAG_MANDATORY, 0, x, 4, AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(str, avp, str->avpList.tail);
set_4bytes(x, 4); // Diameter_administrative
avp = AAACreateAVP(AVP_Termination_Cause, AAA_AVP_FLAG_MANDATORY, 0, x, 4, AVP_DUPLICATE_DATA);
AAAAddAVPToMessage(str, avp, str->avpList.tail);
//todo - add all the other avps
/* we are already locked on the auth session*/
p = get_routing_peer(s, str);
if (!p) {
LM_ERR("unable to get routing peer in Send_STR \n");
if (str) AAAFreeMessage(&str); //needed in frequency
return;
}
//if (str) LM_CRIT("Send_STR() : sending STR %d, flags %#1x endtoend %u hopbyhop %u\n",str->commandCode,str->flags,str->endtoendId,str->hopbyhopId);
if (!peer_send_msg(p, str)) {
LM_DBG("Send_STR peer_send_msg return error!\n");
if (str) AAAFreeMessage(&str); //needed in frequency
} else {
LM_DBG("success sending STR\n");
}
}
/**
* Sends a message to the peer.
* \note Must be called with a lock on the peer.
* @param p - peer to send to
* @param msg - message to send
*/
void Snd_Message(peer *p, AAAMessage *msg)
{
AAASession *session=0;
int rcode;
int send_message_before_session_sm=0;
LM_DBG("Snd_Message called to peer [%.*s] for %s with code %d \n",
p->fqdn.len,p->fqdn.s,is_req(msg)?"request":"response",msg->commandCode);
touch_peer(p);
if (msg->sessionId) session = cdp_get_session(msg->sessionId->data);
if (session){
LM_DBG("There is a session of type %d\n",session->type);
switch (session->type){
case AUTH_CLIENT_STATEFULL:
if (is_req(msg)) {
auth_client_statefull_sm_process(session,AUTH_EV_SEND_REQ,msg);
session = 0;
}
else {
if (msg->commandCode == IMS_ASA){
if (!msg->res_code){
msg->res_code = AAAFindMatchingAVP(msg,0,AVP_Result_Code,0,0);
}
if (!msg->res_code) {
auth_client_statefull_sm_process(session,AUTH_EV_SEND_ASA_UNSUCCESS,msg);
session = 0;
}
else {
rcode = get_4bytes(msg->res_code->data.s);
if (rcode>=2000 && rcode<3000) {
peer_send_msg(p,msg);
send_message_before_session_sm=1;
auth_client_statefull_sm_process(session,AUTH_EV_SEND_ASA_SUCCESS,msg);
session = 0;
}
else {
auth_client_statefull_sm_process(session,AUTH_EV_SEND_ASA_UNSUCCESS,msg);
session = 0;
}
}
}else {
auth_client_statefull_sm_process(session,AUTH_EV_SEND_ANS,msg);
session = 0;
}
}
break;
case AUTH_SERVER_STATEFULL:
LM_DBG("this message is matched here to see what request or reply it is\n");
if (is_req(msg))
{
if (msg->commandCode== IMS_ASR)
{
LM_DBG("ASR\n");
auth_server_statefull_sm_process(session,AUTH_EV_SEND_ASR,msg);
session = 0;
} else {
//would be a RAR but ok!
LM_DBG("other request\n");
auth_server_statefull_sm_process(session,AUTH_EV_SEND_REQ,msg);
session = 0;
}
} else {
if (msg->commandCode == IMS_STR)
{
LM_DBG("STA\n");
auth_server_statefull_sm_process(session,AUTH_EV_SEND_STA,msg);
session = 0;
} else {
LM_DBG("other reply\n");
auth_server_statefull_sm_process(session,AUTH_EV_SEND_ANS,msg);
session = 0;
}
}
break;
default:
break;
}
if (session) AAASessionsUnlock(session->hash);
}
if (!send_message_before_session_sm) peer_send_msg(p,msg);
}
/**
* Sends a message to the peer.
* \note Must be called with a lock on the peer.
* @param p - peer to send to
* @param msg - message to send
*/
void Snd_Message(peer *p, AAAMessage *msg)
{
touch_peer(p);
peer_send_msg(p,msg);
}