From 4aa188e1a868d25c5b93e48e5d29bbd0f9d3bc3a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 18 Feb 2009 19:32:08 +0100 Subject: [PATCH] mac80211/cfg80211: move iwrange handler to cfg80211 The previous patch made cfg80211 generally aware of the signal type a given hardware will give, so now it can implement SIOCGIWRANGE itself, removing more wext stuff from mac80211. Might need to be a little more parametrized once we have more hardware using cfg80211 and new hardware capabilities. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/cfg80211.h | 3 + net/mac80211/wext.c | 135 +++++-------------------------------- net/wireless/wext-compat.c | 97 ++++++++++++++++++++++++++ 3 files changed, 116 insertions(+), 119 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e0312746a8cc..43ac90df4164 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -765,6 +765,9 @@ int cfg80211_wext_siwscan(struct net_device *dev, int cfg80211_wext_giwscan(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra); +int cfg80211_wext_giwrange(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra); /** * cfg80211_scan_done - notify that scan finished diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index a8d4b6171916..f6924fc065d3 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -144,124 +144,6 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev, return -EOPNOTSUPP; } -static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local) -{ - u8 wstats_flags = 0; - - wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC | - IEEE80211_HW_SIGNAL_DBM) ? - IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID; - wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ? - IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID; - if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) - wstats_flags |= IW_QUAL_DBM; - - return wstats_flags; -} - -static int ieee80211_ioctl_giwrange(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_range *range = (struct iw_range *) extra; - enum ieee80211_band band; - int c = 0; - - data->length = sizeof(struct iw_range); - memset(range, 0, sizeof(struct iw_range)); - - range->we_version_compiled = WIRELESS_EXT; - range->we_version_source = 21; - range->retry_capa = IW_RETRY_LIMIT; - range->retry_flags = IW_RETRY_LIMIT; - range->min_retry = 0; - range->max_retry = 255; - range->min_rts = 0; - range->max_rts = 2347; - range->min_frag = 256; - range->max_frag = 2346; - - range->encoding_size[0] = 5; - range->encoding_size[1] = 13; - range->num_encoding_sizes = 2; - range->max_encoding_tokens = NUM_DEFAULT_KEYS; - - /* cfg80211 requires this, and enforces 0..100 */ - if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) - range->max_qual.level = 100; - else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) - range->max_qual.level = -110; - else - range->max_qual.level = 0; - - if (local->hw.flags & IEEE80211_HW_NOISE_DBM) - range->max_qual.noise = -110; - else - range->max_qual.noise = 0; - - range->max_qual.updated = ieee80211_get_wstats_flags(local); - - if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) { - /* - * cfg80211 assumes -110 to -40 dBm and clamps to that range - * for qual.qual, so tell userspace this is what we give it - * but take into account that we have to start from 0. - */ - range->max_qual.qual = 70; - range->avg_qual.qual = 35; - } else { - /* - * cfg80211 just uses the level value for qual too, and it - * requires the level value to be 0 .. 100. - */ - range->max_qual.qual = 100; - range->avg_qual.qual = 50; - } - /* not always true but better than nothing */ - range->avg_qual.level = range->max_qual.level / 2; - range->avg_qual.noise = range->max_qual.noise / 2; - range->avg_qual.updated = ieee80211_get_wstats_flags(local); - - range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | - IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; - - - for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { - int i; - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[band]; - - if (!sband) - continue; - - for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { - struct ieee80211_channel *chan = &sband->channels[i]; - - if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { - range->freq[c].i = - ieee80211_frequency_to_channel( - chan->center_freq); - range->freq[c].m = chan->center_freq; - range->freq[c].e = 6; - c++; - } - } - } - range->num_channels = c; - range->num_frequency = c; - - IW_EVENT_CAPA_SET_KERNEL(range->event_capa); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); - - range->scan_capa |= IW_SCAN_CAPA_ESSID; - - return 0; -} - - static int ieee80211_ioctl_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra) @@ -1004,6 +886,21 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev, return ret; } +static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local) +{ + u8 wstats_flags = 0; + + wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC | + IEEE80211_HW_SIGNAL_DBM) ? + IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID; + wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ? + IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID; + if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) + wstats_flags |= IW_QUAL_DBM; + + return wstats_flags; +} + /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev) { @@ -1149,7 +1046,7 @@ static const iw_handler ieee80211_handler[] = (iw_handler) NULL, /* SIOCSIWSENS */ (iw_handler) NULL, /* SIOCGIWSENS */ (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */ - (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */ + (iw_handler) cfg80211_wext_giwrange, /* SIOCGIWRANGE */ (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */ (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */ (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */ diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 58e489fd4aed..b84a9b4fe96a 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -137,3 +137,100 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, return 0; } EXPORT_SYMBOL(cfg80211_wext_giwmode); + + +int cfg80211_wext_giwrange(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct iw_range *range = (struct iw_range *) extra; + enum ieee80211_band band; + int c = 0; + + if (!wdev) + return -EOPNOTSUPP; + + data->length = sizeof(struct iw_range); + memset(range, 0, sizeof(struct iw_range)); + + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 21; + range->retry_capa = IW_RETRY_LIMIT; + range->retry_flags = IW_RETRY_LIMIT; + range->min_retry = 0; + range->max_retry = 255; + range->min_rts = 0; + range->max_rts = 2347; + range->min_frag = 256; + range->max_frag = 2346; + + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; + range->num_encoding_sizes = 2; + range->max_encoding_tokens = 4; + + range->max_qual.updated = IW_QUAL_NOISE_INVALID; + + switch (wdev->wiphy->signal_type) { + case CFG80211_SIGNAL_TYPE_NONE: + break; + case CFG80211_SIGNAL_TYPE_MBM: + range->max_qual.level = -110; + range->max_qual.qual = 70; + range->avg_qual.qual = 35; + range->max_qual.updated |= IW_QUAL_DBM; + range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; + range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; + break; + case CFG80211_SIGNAL_TYPE_UNSPEC: + range->max_qual.level = 100; + range->max_qual.qual = 100; + range->avg_qual.qual = 50; + range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; + range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; + break; + } + + range->avg_qual.level = range->max_qual.level / 2; + range->avg_qual.noise = range->max_qual.noise / 2; + range->avg_qual.updated = range->max_qual.updated; + + range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | + IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; + + + for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { + int i; + struct ieee80211_supported_band *sband; + + sband = wdev->wiphy->bands[band]; + + if (!sband) + continue; + + for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { + struct ieee80211_channel *chan = &sband->channels[i]; + + if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { + range->freq[c].i = + ieee80211_frequency_to_channel( + chan->center_freq); + range->freq[c].m = chan->center_freq; + range->freq[c].e = 6; + c++; + } + } + } + range->num_channels = c; + range->num_frequency = c; + + IW_EVENT_CAPA_SET_KERNEL(range->event_capa); + IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); + IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); + + range->scan_capa |= IW_SCAN_CAPA_ESSID; + + return 0; +} +EXPORT_SYMBOL(cfg80211_wext_giwrange); -- 2.20.1