int main(){
char ip[50];
generate_ip(ip);
printf("%s\n", ip);
return 0;
}
void run(void *)
{//this keeps the program alive
//debug_->debug("%u --- counter = %d\n", radio_->id(), counter);
if (mode==1)
{//if you are not in the network
if (counter>=0)
{//if the counter is positive
counter++;
if (counter==4)
{//if the counter is 4 then you can come in the network
debug_->debug("%u:: i'm going in!!\n", radio_->id());
send_hello_message();//send hello message
mode=0;//change your mode, now you are in the network
}
else if (counter!=-1)
{//if counter is not -1 send participation message (it will not be ofcourse)
debug_->debug("(%u - %s - %s)sending participation message %i\n",radio_->id(),my_ip,my_host,counter);
send_participate_message();
}
}
else
{//else
if (counter==-1)//if counter is -1, well.. we fix this in other position doesnot need here.. anyway.
{
debug_->debug("oops must resolve it!!!\n");
}
generate_ip();
}
timer_->set_timer<Zeroconf, &Zeroconf::run>( 5000, this, 0 );//recall run function after 5000miliseconds
}
else if (mode==0)
{//if you are in the network...
timer_->set_timer<Zeroconf, &Zeroconf::run>( 1000, this, 0 );//recall run function after 5000 miliseconds
//here we will add code for searching for services if needed, and advertise new services if any.
}
}
void handle_participate_message(zeroconf_msg& message)
{
msg_data m_data;
memcpy(&m_data, message.payload(), message.payload_size() );
debug_->debug("receive participate(%u) from (%s)\n",radio_->id(),(char *)message.source());
if (mode==0)//if node is in the network
{//if you receive an other message
if (!strcmp((char *)message.destination(),my_ip) || !strcmp(m_data.dest_host,my_host))
{//you are the destination
//debug_->debug("%s got a message wow!:)(%s)\n",my_ip,message.source_ip);
if (!strcmp((char *)message.source(),"0.0.0.0")) //someone is trying to connect with my ip
{//if the sender is one whos trying to come in
debug_->debug("found an outsider, i must reply to him\n");
set_node_message_id(my_MACC,++msgID);
zeroconf_msg reply;
memset(&reply,0,sizeof(reply));
reply.set_type(TYPE_LEN * sizeof(char), (Os::Radio::block_data_t *) &("participate"));
reply.set_source(IP_LEN * sizeof(char),(Os::Radio::block_data_t *) &my_ip);
reply.set_destination(IP_LEN * sizeof(char),(Os::Radio::block_data_t *) &("ANY"));
reply.set_source_mac(MAC_LEN * sizeof(char),(Os::Radio::block_data_t *) &my_MACC );
reply.set_msg_id(msgID);
msg_data reply_data;
strcpy(reply_data.source_host,my_host);
reply.set_payload(sizeof(msg_data),(Os::Radio::block_data_t *) &reply_data);
radio_->send( Os::Radio::BROADCAST_ADDRESS, sizeof(zeroconf_msg), (Os::Radio::block_data_t *)&reply);
}
}
else
{//else forward the message
//strcpy(message.not_ip,my_ip);
radio_->send( Os::Radio::BROADCAST_ADDRESS, sizeof(zeroconf_msg), (Os::Radio::block_data_t *)&message);
}
}
else if (mode == 1)
{//if node is not in the network
debug_->debug("eimai o 0:m_data.source_host=%s\n",m_data.source_host);
if (!strcmp((char *)message.source(),my_ip))
{//if you receive message from someone with your ip
counter=0;
debug_->debug("(%u)WOW someone has my ip.... i must change it?\n",radio_->id());
generate_ip();//generate new ip
}
if (!strcmp(m_data.source_host,my_host))
{//if you receive message from someone with your hostname
debug_->debug("%u === my_host = %s & source_host = %s \n", radio_->id(), my_host, m_data.source_host);
counter=0;
//generate_hostname();//generate new hostname
debug_->debug("(%u)WOW someone has my hostname.... i must change it?\n",radio_->id());
resolve_hostname(my_host, trial_num);
trial_num = 1;
}
//someone is claiming the hostname i want at the same time
if (!strcmp(m_data.dest_host,my_host) && strcmp((char *)message.source_mac(),my_MACC))
{
counter=0;
resolve_hostname(my_host, trial_num);
}
if (!strcmp((char *)message.destination(),my_ip) && strcmp((char *)message.source_mac(),my_MACC))
{
counter=0;
generate_ip();
}
}
}