void SipProcess(osip_t* osip, char* pBuf, int size, SOCKET sock)
{
osip_event_t *evt = osip_parse(pBuf, size); // doesn't need to be free
int rc;
if (evt == NULL)
{
OutputDebugString(TEXT("unknown message received\r\n"));
return;
}
rc = osip_find_transaction_and_add_event(osip, evt);
if (0 != rc)
{
OutputDebugString(TEXT("this event has no transaction, create a new one\r\n"));
if(evt->type == RCV_REQINVITE)
{
ProcessNewReqIst(osip, evt, sock);
}
else
{
ProcessNewReqNist(osip, evt, sock);
};
}
}
int sipdump(const u_char* frame, unsigned int frame_length, sip_graph_t *sg[], unsigned short *sg_length) {
//header part
//struct ether_header *ether_header = (struct ether_header *) frame;
struct iphdr *ip_header = (struct iphdr *) (frame + sizeof(struct ether_header));
int ip_header_length = ip_header->ihl * 4; //ip header size may be variable
// struct udphdr *udp_header = (struct udphdr *) (frame + sizeof(struct ether_header) + ip_header_length);
unsigned int header_length = (sizeof(struct ether_header) + ip_header_length + sizeof(struct udphdr));
//payload part
char *payload = (char *) (frame + header_length);
unsigned int payload_length = frame_length - header_length;
osip_event_t *oe = osip_parse(payload, payload_length);
if(oe == NULL) {
//perror("Error parsing SIP");
return -1;
}
oe->sip->message = malloc(100);
memcpy(oe->sip->message, payload, 100);
if( ins_sip_graph(ip_header, oe, sg, sg_length) == -1) {
//perror("Could not insert message into sip_graph");
return -1;
}
return 0;
}
void processSipMsg()
{
int port;
char host[256];
char msg[MESSAGE_MAX_LENGTH];
int msgLen;
osip_event_t *sipevent;
osip_transaction_t *transaction = NULL;
struct sockaddr_in sa;
int status;
if((msgLen = networkMsgRecv(sipSock,msg,MESSAGE_MAX_LENGTH,&sa)) > 0){
printf("processSipMsg: RECEIVED MSG\n");
printf("%s\n",msg);
sipevent = osip_parse(msg,msgLen);
if((sipevent==NULL)||(sipevent->sip==NULL)){
printf("Could not parse SIP message\n");
osip_event_free(sipevent);
return;
}
}
osip_message_fix_last_via_header(sipevent->sip,(char *)inet_ntoa(sa.sin_addr),ntohs(sa.sin_port));
if((status = osip_find_transaction_and_add_event(osip,sipevent)) != 0){
printf("New transaction!\n");
if(MSG_IS_REQUEST(sipevent->sip)){
printf("Got New Request\n");;
}else if(MSG_IS_RESPONSE(sipevent->sip)){
printf("Bad Message:%s\n",msg);
osip_event_free(sipevent);
}else{
printf("Unsupported message:%s\n",msg);
osip_event_free(sipevent);
}
}
}
