[ECOS] Runtime network reinit

["Goran Pantar" <gpantar@xylon.hr>]

Hi,
I have initialised the Network stack using fixed IP adresses. I would
now like the possibility to change the IP address at runtime. Is this
possible in eCos?

Parts of my network intialisation procedure:
..
   s = socket(AF_INET, SOCK_DGRAM, 0);
..
   ioctl(s, SIOCSIFHWADDR, &ifr);
   close(s);
..
   eth0_bootp_data.bp_op = BOOTREPLY;
   eth0_bootp_data.bp_htype = HTYPE_ETHERNET;
   eth0_bootp_data.bp_hlen = ETHER_ADDR_LEN;
   for(i = 0;  i < eth0_bootp_data.bp_hlen;  i++)
   {
     eth0_bootp_data.bp_chaddr[i] = 0xFF;
   }
   eth0_bootp_data.bp_ciaddr.s_addr = *(in_addr_t *)NetHeader.addr_ip;
   eth0_bootp_data.bp_yiaddr.s_addr = *(in_addr_t *)NetHeader.addr_ip;
   eth0_bootp_data.bp_siaddr.s_addr = *(in_addr_t
*)NetHeader.addr_server;
   eth0_bootp_data.bp_giaddr.s_addr = *(in_addr_t
*)NetHeader.addr_gateway;
..
   init_net(eth0_name, &eth0_bootp_data);
..

The obove procedure initializes the network sucessfully and all the
services are working. But when I run the same procedure (with changed IP
addresses) init_net fails with a diag print: SIOCIFADDR: File exist.


Thanks,
Goran Pantar 


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