1 // SPDX-License-Identifier: GPL-2.0
2 /* AFS network device helpers
7 #include <linux/string.h>
8 #include <linux/rtnetlink.h>
9 #include <linux/inetdevice.h>
10 #include <linux/netdevice.h>
11 #include <linux/if_arp.h>
12 #include <net/net_namespace.h>
16 * get a list of this system's interface IPv4 addresses, netmasks and MTUs
17 * - maxbufs must be at least 1
18 * - returns the number of interface records in the buffer
20 int afs_get_ipv4_interfaces(struct afs_net *net, struct afs_interface *bufs,
21 size_t maxbufs, bool wantloopback)
23 struct net_device *dev;
24 struct in_device *idev;
30 for_each_netdev(net->net, dev) {
31 if (dev->type == ARPHRD_LOOPBACK && !wantloopback)
33 idev = __in_dev_get_rtnl(dev);
36 for_primary_ifa(idev) {
37 bufs[n].address.s_addr = ifa->ifa_address;
38 bufs[n].netmask.s_addr = ifa->ifa_mask;
39 bufs[n].mtu = dev->mtu;