Release 4.10 fs/afs/netdevices.c

/* 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 <net/net_namespace.h>
#include "internal.h"

/*
 * get a MAC address from a random ethernet interface that has a real one
 * - the buffer will normally be 6 bytes in size
 */


int afs_get_MAC_address(u8 *mac, size_t maclen)
{
	struct net_device *dev;
	int ret = -ENODEV;

	BUG_ON(maclen != ETH_ALEN);

	rtnl_lock();
	dev = __dev_getfirstbyhwtype(&init_net, ARPHRD_ETHER);
	if (dev) {
		memcpy(mac, dev->dev_addr, maclen);
		ret = 0;
	}
	rtnl_unlock();
	return ret;
}

Contributors
Person
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Commits
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patrick mchardy
patrick mchardy
55
78.57%
1
25.00%
david howells
david howells
9
12.86%
1
25.00%
stoyan gaydarov
stoyan gaydarov
3
4.29%
1
25.00%
eric w. biederman
eric w. biederman
3
4.29%
1
25.00%
Total
70
100.00%
4
100.00%

/*
 * get a list of this system's interface IPv4 addresses, netmasks and MTUs
 * - maxbufs must be at least 1
 * - returns the number of interface records in the buffer
 */


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;

	ASSERT(maxbufs > 0);

	rtnl_lock();
	for_each_netdev(&init_net, dev) {
		if (dev->type == ARPHRD_LOOPBACK && !wantloopback)
			continue;
		idev = __in_dev_get_rtnl(dev);
		if (!idev)
			continue;
		for_primary_ifa(idev) {
			bufs[n].address.s_addr = ifa->ifa_address;
			bufs[n].netmask.s_addr = ifa->ifa_mask;
			bufs[n].mtu = dev->mtu;
			n++;
			if (n >= maxbufs)
				goto out;
		} endfor_ifa(idev);
	}
out:
	rtnl_unlock();
	return n;
}
Contributors
Person
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CommitProp
patrick mchardy
patrick mchardy
118
83.10%
1
25.00%
david howells
david howells
18
12.68%
1
25.00%
pavel emelianov
pavel emelianov
4
2.82%
1
25.00%
eric w. biederman
eric w. biederman
2
1.41%
1
25.00%
Total
142
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
patrick mchardy
patrick mchardy
192
81.36%
1
20.00%
david howells
david howells
29
12.29%
1
20.00%
eric w. biederman
eric w. biederman
8
3.39%
1
20.00%
pavel emelianov
pavel emelianov
4
1.69%
1
20.00%
stoyan gaydarov
stoyan gaydarov
3
1.27%
1
20.00%
Total
236
100.00%
5
100.00%
Directory: fs/afs

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