Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7bf23575 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

net: feed /dev/random with the MAC address when registering a device 



Cc: David Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
parent b04b3156

net/core/dev.c

+3 −0
Original line number Diff line number Diff line
@@ -1172,6 +1172,7 @@ static int __dev_open(struct net_device *dev) 
		net_dmaengine_get();

		dev_set_rx_mode(dev);

		dev_activate(dev);

		add_device_randomness(dev->dev_addr, dev->addr_len);

	}



	return ret;
@@ -4763,6 +4764,7 @@ int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa) 
	err = ops->ndo_set_mac_address(dev, sa);

	if (!err)

		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);

	add_device_randomness(dev->dev_addr, dev->addr_len);

	return err;

}

EXPORT_SYMBOL(dev_set_mac_address);
@@ -5541,6 +5543,7 @@ int register_netdevice(struct net_device *dev) 
	dev_init_scheduler(dev);

	dev_hold(dev);

	list_netdevice(dev);

	add_device_randomness(dev->dev_addr, dev->addr_len);



	/* Notify protocols, that a new device appeared. */

	ret = call_netdevice_notifiers(NETDEV_REGISTER, dev);

net/core/rtnetlink.c

+1 −0
Original line number Diff line number Diff line
@@ -1378,6 +1378,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, 
			goto errout;

		send_addr_notify = 1;

		modified = 1;

		add_device_randomness(dev->dev_addr, dev->addr_len);

	}



	if (tb[IFLA_MTU]) {