From 0b20633d966eb08506f8796544aef7a9ab5f3544 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 7 Jul 2009 03:56:13 +0200 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- net/wireless/core.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/net/wireless/core.c b/net/wireless/core.c index b5e2f6dfa333..1a78b3c70cf2 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; -- 2.39.5