diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index d9f08f65f7a5d2942ac82155422f5833af472880..d81e730962ccd48177a7676083d2c681efda1241 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -281,9 +281,13 @@ struct ieee80211_supported_band { /** * struct vif_params - describes virtual interface parameters * @use_4addr: use 4-address frames + * @macaddr: address to use for this virtual interface. This will only + * be used for non-netdevice interfaces. If this parameter is set + * to zero address the driver may determine the address as needed. */ struct vif_params { int use_4addr; + u8 macaddr[ETH_ALEN]; }; /** diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 1a7a710fe9bf24f90a207b82d048e6351a51e1f2..d543cf152100d837194ee215179602f2494b418c 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2079,6 +2079,13 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) !(rdev->wiphy.interface_modes & (1 << type))) return -EOPNOTSUPP; + if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) { + nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], + ETH_ALEN); + if (!is_valid_ether_addr(params.macaddr)) + return -EADDRNOTAVAIL; + } + if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);