Hi all,
I am working on a scenario in Blip which using UDPEcho is a case. I define a
UDPMsg as a newUDPSocket() for receiving UDP packets and sending as well. In
this regard, I programmed two motes and the basestation to see how are they
working together. so here are my misunderstandings:
1- Two motes with modified UDPEcho wants to send and receive packets to each
other, there are a LED which shows the receiving and sending packets. When I
run only these two motes only sending is correct but receiving part does not
carry out but When I connected IPBasestation LEDs start working.
I have some ideas but I am not sure about them. please help me in this
regard that I can figure out my problem.
2- When I receive a packet in one of the motes, I wanted to do some
modification on it and send it again. How can I do this? I have some similar
codes but it seems that some parts have problem which cause failure in
sending. here are my codes:
event void UDPMsg.recvfrom(struct sockaddr_in6 *from, void *data,
uint16_t len, struct ip_metadata *meta) {
nx_struct udp_report UDPMsg;
bool busy = FALSE;
struct sockaddr_in6 dest_sock;
dest_sock.sin6_port = hton16(7070);
CHECK_NODE_ID;
call Leds.led0Toggle();
if (!busy) {
uint16_t Verf = stats.Etemprature; // I have tried UDPMsg.Etemprature,
but still does not work
// I have added Etemprature in UDP_Report header file.
Verf = Verf ^ 15;
if ( Verf == (stats.Esmac23)){
call Leds.led1Toggle();
busy = TRUE;
UDPMsg = stats;
inet_pton6("fec0::3", &dest_sock.sin6_addr);
call UDPMsg.sendto(&dest_sock, &UDPMsg, len);
call Leds.led2Toggle();
}
}
}
When I connected IPBasestation only led0 toggles in the above receiving
function. but the rest of the leds don`t work which I aaume that the
highlighted section is wrong.
I have tried sending stats without changing anything but it does not work
either.
3- actually I want to see the packets in wireshark wich when there is only
one mote I can see everything. but when I brought second node to the
network just Echo part is working and I can see only ICMP, but not the data.
I am not sure what is going on.
Any help will highly appreciated.
Regards,
Hamidreza
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