Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/* AFS network device helpers
*
* Copyright (c) 2007 Patrick McHardy <kaber@trash.net>
*/
#include <linux/string.h>
#include <linux/rtnetlink.h>
#include <linux/inetdevice.h>
#include <linux/netdevice.h>
#include <linux/if_arp.h>
#include "internal.h"
int afs_get_MAC_address(u8 mac[ETH_ALEN])
{
struct net_device *dev;
int ret = -ENODEV;
rtnl_lock();
dev = __dev_getfirstbyhwtype(ARPHRD_ETHER);
if (dev) {
memcpy(mac, dev->dev_addr, ETH_ALEN);
ret = 0;
}
rtnl_unlock();
return ret;
}
int afs_get_ipv4_interfaces(struct afs_interface *bufs, size_t maxbufs,
bool wantloopback)
{
struct net_device *dev;
struct in_device *idev;
int n = 0;
rtnl_lock();
for (dev = dev_base; dev; dev = dev->next) {
if (dev->type == ARPHRD_LOOPBACK && !wantloopback)
continue;
idev = __in_dev_get_rtnl(dev);
if (!idev)
continue;
for_primary_ifa(idev) {
if (n == maxbufs)
goto out;
bufs[n].address.s_addr = ifa->ifa_address;
bufs[n].netmask.s_addr = ifa->ifa_mask;
bufs[n].mtu = dev->mtu;
n++;
} endfor_ifa(idev)
}
out:
rtnl_unlock();
return n;
}