i install WireShark Version 0.99.3a from ubuntu apt repository i run it but
i wasn't able to register any packet on vnic0. I had to enable something? In
enable protocle RTcfg and RTmac are enabled but wireshark doesn't track any
packet neither running examples or rtping that works correctly?
Were is my fault? or were i can found a tutorial?
Thank's
Emanuele
2006/11/21, Jan Kiszka <[EMAIL PROTECTED]>:
Emanuele Clerici wrote:
> 2006/11/21, Jan Kiszka <[EMAIL PROTECTED]>:
>>
>> Emanuele Clerici wrote:
>> > Hi,
>> > I've tried with this code
>> >
>> > "server"
>> > ----------------------------------
>> > if (argc == 2) {
>> > local_addr.sin_family = AF_INET;
>> > local_addr.sin_addr.s_addr = INADDR_ANY;
>> > local_addr.sin_port = htons(atoi(argv[1]));
>> > } else {
>> > fprintf(stderr,
>> > "Usage: "
>> > "%s <local-port>\n",
>> > argv[0]);
>> > exit(1);
>> > }
>> > mlockall(MCL_CURRENT|MCL_FUTURE);
>> > sockfd = socket(AF_INET, SOCK_DGRAM, 0);
>> > ret = bind(sockfd, (struct sockaddr *) &local_addr,sizeof(struct
>> > sockaddr_in));
>> > ret = recv(sockfd, &msg, sizeof(msg), 0);
>> > close(sockfd);
>> > printf("Received message: port %d owner %llu hard %d
>> > size=%d\n",msg.port,
>> > msg.owner,msg.hard,ret);
>> > ----------------------------------
>> > "client"
>> > ----------------------------------
>> > if (argc == 4) {
>> > local_addr.sin_family = AF_INET;
>> > local_addr.sin_addr.s_addr = INADDR_ANY;
>> > local_addr.sin_port = htons(atoi(argv[1]));
>> >
>> > server_addr.sin_family = AF_INET;
>> > inet_aton(argv[2], &server_addr.sin_addr);
>> > server_addr.sin_port = htons(atoi(argv[3]));
>> > } else {
>> > fprintf(stderr,
>> > "Usage: "
>> > "%s <local-port> "
>> > "<server-ip> <server-port>\n",
>> > argv[0]);
>> > exit(1);
>> > }
>> > mlockall(MCL_CURRENT|MCL_FUTURE);
>> > sockfd = rt_dev_socket(AF_INET, SOCK_DGRAM, 0);
>> > lxrtnettsk = rt_task_init(4800, 1, 0, 0);
>> > rt_make_hard_real_time();
>> > ret = rt_dev_bind(sockfd, (struct sockaddr *) &local_addr,
>> sizeof(struct
>> > sockaddr_in));
>> > rt_dev_connect(sockfd, (struct sockaddr *) &server_addr,
>> sizeof(struct
>> > sockaddr_in));
>> > rt_dev_send(sockfd, &msg, sizeof(msg), 0);
>> > rt_make_soft_real_time();
>> > rt_dev_close(sockfd);
>> > rt_task_delete(lxrtnettsk);
>> > ----------------------------------
>>
>> Are those extracts just copied from existing examples? Or did you
change
>> anything?
>
>
> the client is an extract from existing examples, i've only changed the
> message sent, in the server I use linux socket function.
>
>>
>> > if I try with linux server & linux client it works, the same with
rtnet
>> but
>> > this example doesn't work.
>>
>> What does "doesn't work" mean precisely? Describe the behaviour,
>> reported errors, whatever may help to understand your procedure and the
>> result. Consider describing it in a way that someone may actually be
>> able to reproduce it.
>
>
> i execute simpleserver on a free port and i run simpleclient on the
other
> machine sending to this port. The client run's normally but the server
> wait's forever.
>
>> Is a misconfiguration problem of the two nodes, code's error or
something
>> > else?
>>
>> Does rtping work from your RT host to the Linux system? What does
>> rtroute state?
>
>
> rtping work correctly
> and this is the route "cat"
> [EMAIL PROTECTED]:/home/# cat /proc/rtnet/ipv4/route
> Host routes allocated/total: 5/32
> Host hash table size: 64
> IP Router: no
> [EMAIL PROTECTED]:/home/# cat /proc/rtnet/ipv4/host_route
> Hash Destination HW Address Device
> 00 0.0.0.0 00:00:00:00:00:00 rtlo
> 01 192.168.3.1 00:00:00:00:00:00 rtlo
> 01 127.0.0.1 00:00:00:00:00:00 rtlo
> 02 192.168.3.2 00:48:54:6D:73:51 rteth0
> 3F 192.168.3.255 FF:FF:FF:FF:FF:FF rteth0
>
Ok, that's so far a good sign. Now check if some message is actually
sent from the client and what is received on the server. Use
Wireshark/Ethereal for this, on the RTnet box via RTcap. Check if you
are actually sending to / receiving on the right port. It's probably a
trivial issue, but I can't see from here what is going wrong.
Jan
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