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Subject: mac80211: support adding/removing keys via cfg80211
This adds the necessary hooks to mac80211 to allow userspace
to edit keys with cfg80211 (through nl80211.)
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
net/mac80211/cfg.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 91 insertions(+)
--- everything.orig/net/mac80211/cfg.c 2007-11-07 13:19:29.441515732 +0100
+++ everything/net/mac80211/cfg.c 2007-11-07 13:19:39.531517685 +0100
@@ -6,6 +6,7 @@
* This file is GPLv2 as found in COPYING.
*/
+#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <net/net_namespace.h>
@@ -105,8 +106,98 @@ static int ieee80211_change_iface(struct
return 0;
}
+static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_idx, u8 *mac_addr,
+ struct key_params *params)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta = NULL;
+ enum ieee80211_key_alg alg;
+ int ret;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ switch (params->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ alg = ALG_WEP;
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ alg = ALG_TKIP;
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ alg = ALG_CCMP;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (mac_addr) {
+ sta = sta_info_get(sdata->local, mac_addr);
+ if (!sta)
+ return -ENOENT;
+ }
+
+ ret = 0;
+ if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
+ params->key_len, params->key))
+ ret = -ENOMEM;
+
+ if (sta)
+ sta_info_put(sta);
+
+ return ret;
+}
+
+static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_idx, u8 *mac_addr)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ int ret;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (mac_addr) {
+ sta = sta_info_get(sdata->local, mac_addr);
+ if (!sta)
+ return -ENOENT;
+
+ ret = 0;
+ if (sta->key)
+ ieee80211_key_free(sta->key);
+ else
+ ret = -ENOENT;
+
+ sta_info_put(sta);
+ return ret;
+ }
+
+ if (!sdata->keys[key_idx])
+ return -ENOENT;
+
+ ieee80211_key_free(sdata->keys[key_idx]);
+
+ return 0;
+}
+
+static int ieee80211_config_default_key(struct wiphy *wiphy,
+ struct net_device *dev,
+ u8 key_idx)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ieee80211_set_default_key(sdata, key_idx);
+
+ return 0;
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
.change_virtual_intf = ieee80211_change_iface,
+ .add_key = ieee80211_add_key,
+ .del_key = ieee80211_del_key,
+ .set_default_key = ieee80211_config_default_key,
};
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