mac80211: support separate default keys

[deliverable/linux.git] / net / mac80211 / key.c

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index ccd676b2f5999b6779e02903b853e838c8836612..84cf9196820fe70b546febee2f9e61ebb79ef501 100644 (file)
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -84,10 +84,17 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
                goto out_unsupported;
 
        sdata = key->sdata;
-       if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+       if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+               /*
+                * The driver doesn't know anything about VLAN interfaces.
+                * Hence, don't send GTKs for VLAN interfaces to the driver.
+                */
+               if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE))
+                       goto out_unsupported;
                sdata = container_of(sdata->bss,
                                     struct ieee80211_sub_if_data,
                                     u.ap);
+       }
 
        ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf);
 
@@ -171,7 +178,7 @@ void ieee80211_key_removed(struct ieee80211_key_conf *key_conf)
 EXPORT_SYMBOL_GPL(ieee80211_key_removed);
 
 static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata,
-                                       int idx)
+                                       int idx, bool uni, bool multi)
 {
        struct ieee80211_key *key = NULL;
 
@@ -180,18 +187,19 @@ static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata,
        if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
                key = sdata->keys[idx];
 
-       rcu_assign_pointer(sdata->default_key, key);
+       if (uni)
+               rcu_assign_pointer(sdata->default_unicast_key, key);
+       if (multi)
+               rcu_assign_pointer(sdata->default_multicast_key, key);
 
-       if (key) {
-               ieee80211_debugfs_key_remove_default(key->sdata);
-               ieee80211_debugfs_key_add_default(key->sdata);
-       }
+       ieee80211_debugfs_key_update_default(sdata);
 }
 
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx,
+                              bool uni, bool multi)
 {
        mutex_lock(&sdata->local->key_mtx);
-       __ieee80211_set_default_key(sdata, idx);
+       __ieee80211_set_default_key(sdata, idx, uni, multi);
        mutex_unlock(&sdata->local->key_mtx);
 }
 
@@ -208,10 +216,7 @@ __ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata, int idx)
 
        rcu_assign_pointer(sdata->default_mgmt_key, key);
 
-       if (key) {
-               ieee80211_debugfs_key_remove_mgmt_default(key->sdata);
-               ieee80211_debugfs_key_add_mgmt_default(key->sdata);
-       }
+       ieee80211_debugfs_key_update_default(sdata);
 }
 
 void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata,
@@ -229,7 +234,8 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
                                    struct ieee80211_key *old,
                                    struct ieee80211_key *new)
 {
-       int idx, defkey, defmgmtkey;
+       int idx;
+       bool defunikey, defmultikey, defmgmtkey;
 
        if (new)
                list_add(&new->list, &sdata->key_list);
@@ -250,17 +256,24 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
                else
                        idx = new->conf.keyidx;
 
-               defkey = old && sdata->default_key == old;
+               defunikey = old && sdata->default_unicast_key == old;
+               defmultikey = old && sdata->default_multicast_key == old;
                defmgmtkey = old && sdata->default_mgmt_key == old;
 
-               if (defkey && !new)
-                       __ieee80211_set_default_key(sdata, -1);
+               if (defunikey && !new)
+                       __ieee80211_set_default_key(sdata, -1, true, false);
+               if (defmultikey && !new)
+                       __ieee80211_set_default_key(sdata, -1, false, true);
                if (defmgmtkey && !new)
                        __ieee80211_set_default_mgmt_key(sdata, -1);
 
                rcu_assign_pointer(sdata->keys[idx], new);
-               if (defkey && new)
-                       __ieee80211_set_default_key(sdata, new->conf.keyidx);
+               if (defunikey && new)
+                       __ieee80211_set_default_key(sdata, new->conf.keyidx,
+                                                   true, false);
+               if (defmultikey && new)
+                       __ieee80211_set_default_key(sdata, new->conf.keyidx,
+                                                   false, true);
                if (defmgmtkey && new)
                        __ieee80211_set_default_mgmt_key(sdata,
                                                         new->conf.keyidx);
@@ -502,11 +515,12 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
 
        mutex_lock(&sdata->local->key_mtx);
 
-       ieee80211_debugfs_key_remove_default(sdata);
        ieee80211_debugfs_key_remove_mgmt_default(sdata);
 
        list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
                __ieee80211_key_free(key);
 
+       ieee80211_debugfs_key_update_default(sdata);
+
        mutex_unlock(&sdata->local->key_mtx);
 }