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authorPatrick McHardy <kaber@trash.net>2007-07-12 06:42:31 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-12 06:45:36 +0400
commit0e06877c6fdbc67b1132be895f995acd1ff30135 (patch)
treeddaba8cddc8a95d23ee18f812c6aba67dd9b1c6f /drivers/net/dummy.c
parent2d85cba2b272a5201a60966a65a4f8c0bcc0bb71 (diff)
downloadlinux-0e06877c6fdbc67b1132be895f995acd1ff30135.tar.xz
[RTNETLINK]: rtnl_link: allow specifying initial device address
Drivers need to validate the initial addresses in their netlink attribute validation function or manually reject them if they can't support this. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dummy.c')
-rw-r--r--drivers/net/dummy.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
index 373ff700404f..756a6bcb038d 100644
--- a/drivers/net/dummy.c
+++ b/drivers/net/dummy.c
@@ -84,9 +84,21 @@ static int dummy_xmit(struct sk_buff *skb, struct net_device *dev)
return 0;
}
+static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+ if (tb[IFLA_ADDRESS]) {
+ if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
+ return -EINVAL;
+ if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
+ return -EADDRNOTAVAIL;
+ }
+ return 0;
+}
+
static struct rtnl_link_ops dummy_link_ops __read_mostly = {
.kind = "dummy",
.setup = dummy_setup,
+ .validate = dummy_validate,
};
/* Number of dummy devices to be set up by this module. */