package/mac80211/patches/018-mac80211-cfg80211-keys.patch

   1 Subject: mac80211: support adding/removing keys via cfg80211
   2
   3 This adds the necessary hooks to mac80211 to allow userspace
   4 to edit keys with cfg80211 (through nl80211.)
   5
   6 Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
   7
   8 ---
   9  net/mac80211/cfg.c |   91 +++++++++++++++++++++++++++++++++++++++++++++++++++++
  10  1 file changed, 91 insertions(+)
  11
  12 --- everything.orig/net/mac80211/cfg.c  2007-11-07 13:19:29.441515732 +0100
  13 +++ everything/net/mac80211/cfg.c       2007-11-07 13:19:39.531517685 +0100
  14 @@ -6,6 +6,7 @@
  15   * This file is GPLv2 as found in COPYING.
  16   */
  17
  18 +#include <linux/ieee80211.h>
  19  #include <linux/nl80211.h>
  20  #include <linux/rtnetlink.h>
  21  #include <net/net_namespace.h>
  22 @@ -105,8 +106,98 @@ static int ieee80211_change_iface(struct
  23         return 0;
  24  }
  25
  26 +static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
  27 +                            u8 key_idx, u8 *mac_addr,
  28 +                            struct key_params *params)
  29 +{
  30 +       struct ieee80211_sub_if_data *sdata;
  31 +       struct sta_info *sta = NULL;
  32 +       enum ieee80211_key_alg alg;
  33 +       int ret;
  34 +
  35 +       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  36 +
  37 +       switch (params->cipher) {
  38 +       case WLAN_CIPHER_SUITE_WEP40:
  39 +       case WLAN_CIPHER_SUITE_WEP104:
  40 +               alg = ALG_WEP;
  41 +               break;
  42 +       case WLAN_CIPHER_SUITE_TKIP:
  43 +               alg = ALG_TKIP;
  44 +               break;
  45 +       case WLAN_CIPHER_SUITE_CCMP:
  46 +               alg = ALG_CCMP;
  47 +               break;
  48 +       default:
  49 +               return -EINVAL;
  50 +       }
  51 +
  52 +       if (mac_addr) {
  53 +               sta = sta_info_get(sdata->local, mac_addr);
  54 +               if (!sta)
  55 +                       return -ENOENT;
  56 +       }
  57 +
  58 +       ret = 0;
  59 +       if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
  60 +                                params->key_len, params->key))
  61 +               ret = -ENOMEM;
  62 +
  63 +       if (sta)
  64 +               sta_info_put(sta);
  65 +
  66 +       return ret;
  67 +}
  68 +
  69 +static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
  70 +                            u8 key_idx, u8 *mac_addr)
  71 +{
  72 +       struct ieee80211_sub_if_data *sdata;
  73 +       struct sta_info *sta;
  74 +       int ret;
  75 +
  76 +       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  77 +
  78 +       if (mac_addr) {
  79 +               sta = sta_info_get(sdata->local, mac_addr);
  80 +               if (!sta)
  81 +                       return -ENOENT;
  82 +
  83 +               ret = 0;
  84 +               if (sta->key)
  85 +                       ieee80211_key_free(sta->key);
  86 +               else
  87 +                       ret = -ENOENT;
  88 +
  89 +               sta_info_put(sta);
  90 +               return ret;
  91 +       }
  92 +
  93 +       if (!sdata->keys[key_idx])
  94 +               return -ENOENT;
  95 +
  96 +       ieee80211_key_free(sdata->keys[key_idx]);
  97 +
  98 +       return 0;
  99 +}
 100 +
 101 +static int ieee80211_config_default_key(struct wiphy *wiphy,
 102 +                                       struct net_device *dev,
 103 +                                       u8 key_idx)
 104 +{
 105 +       struct ieee80211_sub_if_data *sdata;
 106 +
 107 +       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 108 +       ieee80211_set_default_key(sdata, key_idx);
 109 +
 110 +       return 0;
 111 +}
 112 +
 113  struct cfg80211_ops mac80211_config_ops = {
 114         .add_virtual_intf = ieee80211_add_iface,
 115         .del_virtual_intf = ieee80211_del_iface,
 116         .change_virtual_intf = ieee80211_change_iface,
 117 +       .add_key = ieee80211_add_key,
 118 +       .del_key = ieee80211_del_key,
 119 +       .set_default_key = ieee80211_config_default_key,
 120  };