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mac80211: support separate default keys

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Add support for split default keys (unicast
and multicast) in mac80211.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2010-12-09 19:49:02 +01:00
committed by John W. Linville
parent dbd2fd656f
commit f7e0104c1a
8 changed files with 62 additions and 47 deletions
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45
net/mac80211/key.c
View File

@@ -178,7 +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;
@@ -187,18 +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);
}
@@ -215,10 +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,
@@ -236,7 +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);
@@ -257,17 +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);
@@ -509,11 +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);
}