diff options
Diffstat (limited to 'net/wireless/reg.c')
| -rw-r--r-- | net/wireless/reg.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index bc494cef210..bd0a16c3de5 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -380,7 +380,8 @@ static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule) freq_diff = freq_range->end_freq_khz - freq_range->start_freq_khz; - if (freq_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff) + if (freq_range->end_freq_khz <= freq_range->start_freq_khz || + freq_range->max_bandwidth_khz > freq_diff) return false; return true; @@ -498,6 +499,7 @@ static struct ieee80211_regdomain *country_ie_2_rd( * calculate the number of reg rules we will need. We will need one * for each channel subband */ while (country_ie_len >= 3) { + int end_channel = 0; struct ieee80211_country_ie_triplet *triplet = (struct ieee80211_country_ie_triplet *) country_ie; int cur_sub_max_channel = 0, cur_channel = 0; @@ -509,9 +511,25 @@ static struct ieee80211_regdomain *country_ie_2_rd( continue; } + /* 2 GHz */ + if (triplet->chans.first_channel <= 14) + end_channel = triplet->chans.first_channel + + triplet->chans.num_channels; + else + /* + * 5 GHz -- For example in country IEs if the first + * channel given is 36 and the number of channels is 4 + * then the individual channel numbers defined for the + * 5 GHz PHY by these parameters are: 36, 40, 44, and 48 + * and not 36, 37, 38, 39. + * + * See: http://tinyurl.com/11d-clarification + */ + end_channel = triplet->chans.first_channel + + (4 * (triplet->chans.num_channels - 1)); + cur_channel = triplet->chans.first_channel; - cur_sub_max_channel = ieee80211_channel_to_frequency( - cur_channel + triplet->chans.num_channels); + cur_sub_max_channel = end_channel; /* Basic sanity check */ if (cur_sub_max_channel < cur_channel) @@ -590,15 +608,6 @@ static struct ieee80211_regdomain *country_ie_2_rd( end_channel = triplet->chans.first_channel + triplet->chans.num_channels; else - /* - * 5 GHz -- For example in country IEs if the first - * channel given is 36 and the number of channels is 4 - * then the individual channel numbers defined for the - * 5 GHz PHY by these parameters are: 36, 40, 44, and 48 - * and not 36, 37, 38, 39. - * - * See: http://tinyurl.com/11d-clarification - */ end_channel = triplet->chans.first_channel + (4 * (triplet->chans.num_channels - 1)); @@ -1276,7 +1285,7 @@ static void reg_country_ie_process_debug( if (intersected_rd) { printk(KERN_DEBUG "cfg80211: We intersect both of these " "and get:\n"); - print_regdomain_info(rd); + print_regdomain_info(intersected_rd); return; } printk(KERN_DEBUG "cfg80211: Intersection between both failed\n"); |