/*---------------------------------------------------------------------------*/
PROCESS_THREAD(udp_server_process, ev, data)
{
PROCESS_BEGIN();
print_local_addresses();
dtls_init();
init_dtls();
if (!dtls_context) {
dsrv_log(LOG_EMERG, "cannot create context\n");
PROCESS_EXIT();
}
while(1) {
PROCESS_WAIT_EVENT();
if(ev == tcpip_event) {
dtls_handle_read(dtls_context);
}
#if 0
if (bytes_read > 0) {
/* dtls_handle_message(dtls_context, &the_session, readbuf, bytes_read); */
read_from_peer(dtls_context, &the_session, readbuf, bytes_read);
}
dtls_handle_message(ctx, &session, uip_appdata, bytes_read);
#endif
}
PROCESS_END();
}
//send the handshake to all our peers
void handshake_all(bt_args_t *args){
int i;
int sockfd;
struct sockaddr_in sockaddr, handshake_addr;
bt_msg_t msg; //message structure
char *fname = args->bt_info->name;
char *ip;
int port;
char init_stats[80];
for (i=0;i<MAX_CONNECTIONS;i++){
if (args->peers[i]){
//initiate socket and send out handshake
//keep track of the sockfd in the args struct
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0){
perror("socket");
}
sockaddr = args->peers[i]->sockaddr;
handshake_addr = args->peers[i]->sockaddr;
if (connect(sockfd, (struct sockaddr *)&sockaddr, sizeof(struct sockaddr)) < 0){
perror("connect");
continue;
}
args->peers[i]->sockfd = sockfd; //backup the socket
ip = inet_ntoa(handshake_addr.sin_addr);
port = ntohs(handshake_addr.sin_port);
sprintf(init_stats, "HANDSHAKE INIT to peer: %s on port: %d\n", ip, port);
LOGGER(args->log_file, 1, init_stats);
if (seeder_handshake(sockfd, fname, args->id, handshake_addr)){
sprintf(init_stats, "HANDSHAKE SUCCESS from peer: %s on port: %d\n", ip, port);
LOGGER(args->log_file, 1, init_stats);
args->sockets[i] = sockfd;
args->poll_sockets[i].fd = sockfd;
args->poll_sockets[i].events = POLLIN;
//send our bitfield here
msg.length = sizeof(bt_bitfield_t);
msg.bt_type = BT_BITFIELD;
msg.payload.bitfield = args->bitfield;
send_to_peer(args->peers[i], &msg); //send out the message
read_from_peer(args->peers[i], &msg, args); //listen for bitfield
unchoke_message(&msg);
send_to_peer(args->peers[i], &msg); //send out the unchoke message
}
else{
sprintf(init_stats, "HANDSHAKE DECLINED from peer: %s on port: %d\n", ip, port);
LOGGER(args->log_file, 1, init_stats);
}
}
}
}