static int determine_source (struct sip_msg *msg, enum hash_source source,
str *source_string) {
source_string->s = NULL;
source_string->len = 0;
if(validate_msg(msg) < 0) {
return -1;
}
switch (source) {
case shs_call_id:
return determine_call_id (msg, source_string);
case shs_from_uri:
return determine_fromto_uri (get_from(msg), source_string);
case shs_from_user:
return determine_fromto_user (get_from(msg), source_string);
case shs_to_uri:
return determine_fromto_uri (get_to(msg), source_string);
case shs_to_user:
return determine_fromto_user (get_to(msg), source_string);
case shs_rand:
return determine_fromrand(source_string); /* msg is not needed */
default:
LM_ERR("unknown hash source %i.\n",
(int) source);
return -1;
}
}
void packet_process(u_char *user,const struct pcap_pkthdr *h,const u_char *bytes)
{
//get bob's command: 1 for start | 2 for connect_ap
char *command = "./init.sh";
printf("packets comes\n");
struct lorcon_packet *packet = (struct lorcon_packet *)(bytes+21);
int plen = h->len - 25 - sizeof(struct lorcon_packet);
printf("%d\n",plen);
struct bob_msg *msg = (struct bob_msg *)(packet->payload);
if(validate_msg(msg)==0){
printf("invalid msg format\n");
return;
}
u_char cmd = msg->command;
switch(cmd){
case CSI_COMMAND:
//call the init script
if(system(command)<0){
printf("system error\n");
}
break;
//other command
default:
break;
}
exit(0);
// //cancel alarm
// alarm(0);
//
// //jump over radiotap header:25+24+1024
// //here four-byte ECC code may be added !!! radiotap header is 21
// struct lorcon_packet *packet = (struct lorcon_packet *)(bytes+21);
// int cnt;
// int plen = h->len - 25 - sizeof(struct lorcon_packet);
// printf("%d\n",plen);
// cnt = fwrite(packet->payload,1,plen,file);
// if(plen < 1024){
// //transmit over
// fclose(file);
// exit(0);
// }
//
// //set alarm
// alarm(1);
}
