mac80211/cfg80211: move iwrange handler to cfg80211
[linux-2.6.git] / 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);
140
141
142 int cfg80211_wext_giwrange(struct net_device *dev,
143                            struct iw_request_info *info,
144                            struct iw_point *data, char *extra)
145 {
146         struct wireless_dev *wdev = dev->ieee80211_ptr;
147         struct iw_range *range = (struct iw_range *) extra;
148         enum ieee80211_band band;
149         int c = 0;
150
151         if (!wdev)
152                 return -EOPNOTSUPP;
153
154         data->length = sizeof(struct iw_range);
155         memset(range, 0, sizeof(struct iw_range));
156
157         range->we_version_compiled = WIRELESS_EXT;
158         range->we_version_source = 21;
159         range->retry_capa = IW_RETRY_LIMIT;
160         range->retry_flags = IW_RETRY_LIMIT;
161         range->min_retry = 0;
162         range->max_retry = 255;
163         range->min_rts = 0;
164         range->max_rts = 2347;
165         range->min_frag = 256;
166         range->max_frag = 2346;
167
168         range->encoding_size[0] = 5;
169         range->encoding_size[1] = 13;
170         range->num_encoding_sizes = 2;
171         range->max_encoding_tokens = 4;
172
173         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
174
175         switch (wdev->wiphy->signal_type) {
176         case CFG80211_SIGNAL_TYPE_NONE:
177                 break;
178         case CFG80211_SIGNAL_TYPE_MBM:
179                 range->max_qual.level = -110;
180                 range->max_qual.qual = 70;
181                 range->avg_qual.qual = 35;
182                 range->max_qual.updated |= IW_QUAL_DBM;
183                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
184                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
185                 break;
186         case CFG80211_SIGNAL_TYPE_UNSPEC:
187                 range->max_qual.level = 100;
188                 range->max_qual.qual = 100;
189                 range->avg_qual.qual = 50;
190                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
191                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
192                 break;
193         }
194
195         range->avg_qual.level = range->max_qual.level / 2;
196         range->avg_qual.noise = range->max_qual.noise / 2;
197         range->avg_qual.updated = range->max_qual.updated;
198
199         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
200                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
201
202
203         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
204                 int i;
205                 struct ieee80211_supported_band *sband;
206
207                 sband = wdev->wiphy->bands[band];
208
209                 if (!sband)
210                         continue;
211
212                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
213                         struct ieee80211_channel *chan = &sband->channels[i];
214
215                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
216                                 range->freq[c].i =
217                                         ieee80211_frequency_to_channel(
218                                                 chan->center_freq);
219                                 range->freq[c].m = chan->center_freq;
220                                 range->freq[c].e = 6;
221                                 c++;
222                         }
223                 }
224         }
225         range->num_channels = c;
226         range->num_frequency = c;
227
228         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
229         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
230         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
231
232         range->scan_capa |= IW_SCAN_CAPA_ESSID;
233
234         return 0;
235 }
236 EXPORT_SYMBOL(cfg80211_wext_giwrange);