Am 01.12.2010 23:34, Glen Wernersbach wrote: > Hi All, > > Back at this. My program now compiles. I think I am loading all the correct > libraries to do just NIC, UDP and TCP with RTNET: >> insmod /usr/realtime/modules/rtai_hal.ko >> insmod /usr/realtime/modules/rtai_lxrt.ko >> insmod /usr/realtime/modules/rtai_sem.ko >> insmod /usr/realtime/modules/rtai_rtdm.ko >> rmmod e1000e >> insmod /usr/rtnet/modules/rtnet.ko >> insmod /usr/rtnet/modules/rtipv4.ko >> insmod /usr/rtnet/modules/rtpacket.ko >> insmod /usr/rtnet/modules/rt_loopback.ko >> insmod /usr/rtnet/modules/rt_e1000.ko >> /usr/src/rtnet-0.9.12/tools/./rtifconfig rteth1 up 192.168.0.2 >> /usr/src/rtnet-0.9.12/tools/./rtifconfig rtlo up 127.0.0.1 >> insmod /usr/rtnet/modules/rtudp.ko >> insmod /usr/rtnet/modules/rttcp.ko >> ./opener 192.168.0.2 255.255.255.0 192.168.0.1 test.com testdevice 00 0E 8C >> 9F >> 16 09 > > I current am not connected to a host but am just trying to debug as far as a > I can with this just this side. This all works until the last function:
[ Note that functional debugging is also feasible in QEMU/KVM using e.g.
the emulated rtl8139. ]
>
>> /* create a new TCP socket */
>> if ((nTCPListener = rt_dev_socket(PF_INET, SOCK_STREAM, 0)) == -1)
>> {
>> OPENER_TRACE_ERR("error allocating socket stream listener, %d\n",
>> errno);
>> return EIP_ERROR;
>> }
>>
>> /* create a new UDP socket */
>> if ((nUDPListener = rt_dev_socket(PF_INET, SOCK_DGRAM, 0)) == -1)
>> {
>> OPENER_TRACE_ERR("error allocating udp listener socket, %d\n", errno);
>> return EIP_ERROR;
>> }
>>
>> my_addr.sin_family = AF_INET;
>> my_addr.sin_port = htons(OPENER_ETHERNET_PORT);
>> my_addr.sin_addr.s_addr = htonl(INADDR_ANY);
>> memset(&my_addr.sin_zero, 0, sizeof(my_addr.sin_zero));
>>
>> /* bind the new socket to port 0xAF12 (CIP) */
>> if ((rt_dev_bind(nTCPListener, (struct sockaddr *) &my_addr, sizeof(struct
>> sockaddr)))
>> == -1)
>> {
>> OPENER_TRACE_ERR("error with bind: %d %s", errno, strerror(errno));
>> return EIP_ERROR;
>> }
>>
>> /* enable the udp socket to receive broadcast messages*/
>> y = 1;
>> if (0 > rt_dev_setsockopt(nUDPListener, SOL_SOCKET, SO_BROADCAST, &y,
>> sizeof(int)))
>> {
>> OPENER_TRACE_ERR("error with setting broadcast receive for udp socket:
>> %d %s", errno, strerror(errno));
>> return EIP_ERROR;
>> }
>
> The above function returns ³38 function not implemented²
>
> Do I need to be connected for this to work?
>
> Are my load modules right?
>
> Is this function really not implemented or am I doing something wrong?
>
> If it is not implemented, is there a work around?
SO_BROADCAST is indeed not implemented. RT-UDP sockets have this feature
automatically enabled.
Jan
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