nl80211: Allow privileged operations from user namespaces
While a wiphy can be transferred to network namespaces, a process having CAP_NET_ADMIN in a non-initial user namespace can not administrate such devices due to the genetlink GENL_ADMIN_PERM restrictions. For openvswitch having the same issue, a new GENL_UNS_ADMIN_PERM flag has been introduced, commit 4a92602a ("openvswitch: allow management from inside user namespaces"). This patch changes all privileged operations operating on a wiphy, dev or wdev to allow their administration using the same mechanism. All operations use either NEED_WIPHY, NEED_WDEV or NEED_NETDEV, which implies a namespace aware lookup of the device. The only exception is NL80211_CMD_SET_WIPHY, which explicitly uses a namespace aware phy lookup. Signed-off-by: Martin Willi <martin@strongswan.org> [also allow cancel scan, for completeness] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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