net/wireless/wext-compat.c

   1 /*
   2  * cfg80211 - wext compat code
   3  *
   4  * This is temporary code until all wireless functionality is migrated
   5  * into cfg80211, when that happens all the exports here go away and
   6  * we directly assign the wireless handlers of wireless interfaces.
   7  *
   8  * Copyright 2008       Johannes Berg <johannes@sipsolutions.net>
   9  */
  10
  11 #include <linux/wireless.h>
  12 #include <linux/nl80211.h>
  13 #include <net/iw_handler.h>
  14 #include <net/wireless.h>
  15 #include <net/cfg80211.h>
  16 #include "core.h"
  17
  18 int cfg80211_wext_giwname(struct net_device *dev,
  19                           struct iw_request_info *info,
  20                           char *name, char *extra)
  21 {
  22         struct wireless_dev *wdev = dev->ieee80211_ptr;
  23         struct ieee80211_supported_band *sband;
  24         bool is_ht = false, is_a = false, is_b = false, is_g = false;
  25
  26         if (!wdev)
  27                 return -EOPNOTSUPP;
  28
  29         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  30         if (sband) {
  31                 is_a = true;
  32                 is_ht |= sband->ht_cap.ht_supported;
  33         }
  34
  35         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  36         if (sband) {
  37                 int i;
  38                 /* Check for mandatory rates */
  39                 for (i = 0; i < sband->n_bitrates; i++) {
  40                         if (sband->bitrates[i].bitrate == 10)
  41                                 is_b = true;
  42                         if (sband->bitrates[i].bitrate == 60)
  43                                 is_g = true;
  44                 }
  45                 is_ht |= sband->ht_cap.ht_supported;
  46         }
  47
  48         strcpy(name, "IEEE 802.11");
  49         if (is_a)
  50                 strcat(name, "a");
  51         if (is_b)
  52                 strcat(name, "b");
  53         if (is_g)
  54                 strcat(name, "g");
  55         if (is_ht)
  56                 strcat(name, "n");
  57
  58         return 0;
  59 }
  60 EXPORT_SYMBOL(cfg80211_wext_giwname);
  61
  62 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  63                           u32 *mode, char *extra)
  64 {
  65         struct wireless_dev *wdev = dev->ieee80211_ptr;
  66         struct cfg80211_registered_device *rdev;
  67         struct vif_params vifparams;
  68         enum nl80211_iftype type;
  69
  70         if (!wdev)
  71                 return -EOPNOTSUPP;
  72
  73         rdev = wiphy_to_dev(wdev->wiphy);
  74
  75         if (!rdev->ops->change_virtual_intf)
  76                 return -EOPNOTSUPP;
  77
  78         /* don't support changing VLANs, you just re-create them */
  79         if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
  80                 return -EOPNOTSUPP;
  81
  82         switch (*mode) {
  83         case IW_MODE_INFRA:
  84                 type = NL80211_IFTYPE_STATION;
  85                 break;
  86         case IW_MODE_ADHOC:
  87                 type = NL80211_IFTYPE_ADHOC;
  88                 break;
  89         case IW_MODE_REPEAT:
  90                 type = NL80211_IFTYPE_WDS;
  91                 break;
  92         case IW_MODE_MONITOR:
  93                 type = NL80211_IFTYPE_MONITOR;
  94                 break;
  95         default:
  96                 return -EINVAL;
  97         }
  98
  99         memset(&vifparams, 0, sizeof(vifparams));
 100
 101         return rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
 102                                               NULL, &vifparams);
 103 }
 104 EXPORT_SYMBOL(cfg80211_wext_siwmode);
 105
 106 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 107                           u32 *mode, char *extra)
 108 {
 109         struct wireless_dev *wdev = dev->ieee80211_ptr;
 110
 111         if (!wdev)
 112                 return -EOPNOTSUPP;
 113
 114         switch (wdev->iftype) {
 115         case NL80211_IFTYPE_AP:
 116                 *mode = IW_MODE_MASTER;
 117                 break;
 118         case NL80211_IFTYPE_STATION:
 119                 *mode = IW_MODE_INFRA;
 120                 break;
 121         case NL80211_IFTYPE_ADHOC:
 122                 *mode = IW_MODE_ADHOC;
 123                 break;
 124         case NL80211_IFTYPE_MONITOR:
 125                 *mode = IW_MODE_MONITOR;
 126                 break;
 127         case NL80211_IFTYPE_WDS:
 128                 *mode = IW_MODE_REPEAT;
 129                 break;
 130         case NL80211_IFTYPE_AP_VLAN:
 131                 *mode = IW_MODE_SECOND;         /* FIXME */
 132                 break;
 133         default:
 134                 *mode = IW_MODE_AUTO;
 135                 break;
 136         }
 137         return 0;
 138 }
 139 EXPORT_SYMBOL(cfg80211_wext_giwmode);