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authorJohannes Berg <johannes@sipsolutions.net>2009-07-07 03:56:13 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-07-10 15:02:33 -0400
commit0b20633d966eb08506f8796544aef7a9ab5f3544 (patch)
treebf8a3ee2ae12c71c8e43601d35b04bbea3aaad92
parent79c97e97aed7f760d2826c7daf2d42d8eefe9838 (diff)
cfg80211: disallow configuring unsupported interfaces
In order to force drivers to advertise their interface types, don't just disallow creating new interfaces with unadvertised types but also disallow setting them UP. Additionally, add some validation on the operations the drivers support. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/wireless/core.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index b5e2f6dfa33..1a78b3c70cf 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -331,8 +331,13 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
struct cfg80211_registered_device *rdev;
int alloc_size;
- WARN_ON(!ops->add_key && ops->del_key);
- WARN_ON(ops->add_key && !ops->del_key);
+ WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key));
+ WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc));
+ WARN_ON(ops->connect && !ops->disconnect);
+ WARN_ON(ops->join_ibss && !ops->leave_ibss);
+ WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
+ WARN_ON(ops->add_station && !ops->del_station);
+ WARN_ON(ops->add_mpath && !ops->del_mpath);
alloc_size = sizeof(*rdev) + sizeof_priv;
@@ -687,6 +692,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
mutex_destroy(&wdev->mtx);
break;
case NETDEV_PRE_UP:
+ if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
+ return notifier_from_errno(-EOPNOTSUPP);
if (rfkill_blocked(rdev->rfkill))
return notifier_from_errno(-ERFKILL);
break;