SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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);