ieee802154: setting extended address while iface add

This patch adds support for setting an extended address while
registration a new interface. If ieee802154_is_valid_extended_addr
getting as parameter and invalid extended address then the perm address
is fallback. This is useful to make some default handling while for
example default registration of a wpan interface while phy registration.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index e7224f3c1584..49c4d8a5004a 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -555,6 +555,7 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
 {
         struct cfg802154_registered_device *rdev = info->user_ptr[0];
         enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
+        __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
 
         /* TODO avoid failing a new interface
          * creation due to pending removal?
@@ -569,12 +570,17 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
                         return -EINVAL;
         }
 
+        /* TODO add nla_get_le64 to netlink */
+        if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
+                extended_addr = (__force __le64)nla_get_u64(
+                                info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
+
         if (!rdev->ops->add_virtual_intf)
                 return -EOPNOTSUPP;
 
         return rdev_add_virtual_intf(rdev,
                                      nla_data(info->attrs[NL802154_ATTR_IFNAME]),
-                                     type);
+                                     type, extended_addr);
 }
 
 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)