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Commit 557a3b4d authored by Subash Abhinov Kasiviswanathan's avatar Subash Abhinov Kasiviswanathan
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net: ipv6: Generate random IID for addresses on RAWIP devices 



RAWIP devices such as rmnet do not have a hardware address and
instead require the kernel to generate a random IID for the
IPv6 addresses.

CRs-Fixed: 2233026
Change-Id: Ic46b85f43e4e87cc463d214f8085ffc5584e31f0
Signed-off-by: default avatarSean Tranchetti <stranche@codeaurora.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Git-commit: 9deb441c113ae9e761e42f78d90736d762ff49a3
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
parent 8601ea92

drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c

+4 −0
Original line number Diff line number Diff line
@@ -227,6 +227,10 @@ void rmnet_vnd_setup(struct net_device *rmnet_dev) 


	rmnet_dev->needs_free_netdev = true;

	rmnet_dev->ethtool_ops = &rmnet_ethtool_ops;



	/* This perm addr will be used as interface identifier by IPv6 */

	rmnet_dev->addr_assign_type = NET_ADDR_RANDOM;

	eth_random_addr(rmnet_dev->perm_addr);

}



/* Exposed API */

net/ipv6/addrconf.c

+3 −1
Original line number Diff line number Diff line
@@ -2216,6 +2216,7 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) 
		return addrconf_ifid_ieee1394(eui, dev);

	case ARPHRD_TUNNEL6:

	case ARPHRD_IP6GRE:

	case ARPHRD_RAWIP:

		return addrconf_ifid_ip6tnl(eui, dev);

	}

	return -1;
@@ -3247,7 +3248,8 @@ static void addrconf_dev_config(struct net_device *dev) 
	    (dev->type != ARPHRD_IP6GRE) &&

	    (dev->type != ARPHRD_IPGRE) &&

	    (dev->type != ARPHRD_TUNNEL) &&

	    (dev->type != ARPHRD_NONE)) {

	    (dev->type != ARPHRD_NONE) &&

	    (dev->type != ARPHRD_RAWIP)) {

		/* Alas, we support only Ethernet autoconfiguration. */

		return;

	}