Good morning, can anyone give me a hint for this problem?
I have written a kernel module.
I would need to know how to retrieve the ipv6 address structure
knowing the network interface name.
For ipv4, i do as follows:
int get_ifaddr_by_name(const char *ifname, __u32 * addr)
{
struct net_device *pnet_device;
struct in_device *pin_device;
struct in_ifaddr* inet_ifaddr;
read_lock_bh(&dev_base_lock);
pnet_device = first_net_device();
while (pnet_device != NULL)
{
if ((netif_running(pnet_device))
&& (pnet_device->ip_ptr != NULL)
&& (strcmp(pnet_device->name, ifname) == 0))
{
pin_device =
(struct in_device *) pnet_device->ip_ptr;
inet_ifaddr = pin_device->ifa_list;
if(inet_ifaddr == NULL)
{
printk("ifa_list is null!\n");
break;
}
/* ifa_local: ifa_address is the remote point in ppp */
*addr = (inet_ifaddr->ifa_local);
read_unlock_bh(&dev_base_lock);
return 1;
}
pnet_device = next_net_device(pnet_device);
}
read_unlock_bh(&dev_base_lock);
return -1; /* address not found! */
}
thanks for any suggestion/hint/example
giacomo.
--
Giacomo S.
http://www.giacomos.it
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IPFIREwall (http://www.giacomos.it/ipfire) viene presentato
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