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cfg80211: support configuring vif mac addr on create

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This is useful when creating virtual interfaces.
Keeps udev from mucking with things it shouldn't, since
the default MAC is never seen by udev when specified on
the cmd-line during creation.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[check for feature flag in nl80211 to force drivers to set it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ben Greear
2014-10-22 12:23:05 -07:00
committed by Johannes Berg
parent 9a0cb89a8a
commit e8f479b112
3 changed files with 13 additions and 4 deletions
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4
net/wireless/nl80211.c
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@@ -2605,7 +2605,9 @@ 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]) {
if ((type == NL80211_IFTYPE_P2P_DEVICE ||
rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
info->attrs[NL80211_ATTR_MAC]) {
nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
ETH_ALEN);
if (!is_valid_ether_addr(params.macaddr))