diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/core.h | 4 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 50 | ||||
| -rw-r--r-- | net/wireless/scan.c | 3 | ||||
| -rw-r--r-- | net/wireless/util.c | 35 |
4 files changed, 73 insertions, 19 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index a570ff9214ec..8672e028022f 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -447,6 +447,10 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev, u16 cfg80211_calculate_bitrate(struct rate_info *rate); +int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, + const u8 *rates, unsigned int n_rates, + u32 *mask); + int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, u32 beacon_int); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 44a3fc2ce38d..20aa390cf338 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -177,6 +177,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, + [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, }; /* policy for the key attributes */ @@ -3324,7 +3325,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) struct nlattr *attr; struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_channels, i; - enum ieee80211_band band; size_t ie_len; if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) @@ -3344,6 +3344,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) if (!n_channels) return -EINVAL; } else { + enum ieee80211_band band; n_channels = 0; for (band = 0; band < IEEE80211_NUM_BANDS; band++) @@ -3404,6 +3405,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) i++; } } else { + enum ieee80211_band band; + /* all channels */ for (band = 0; band < IEEE80211_NUM_BANDS; band++) { int j; @@ -3450,6 +3453,28 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) request->ie_len); } + for (i = 0; i < IEEE80211_NUM_BANDS; i++) + request->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; + + if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { + nla_for_each_nested(attr, + info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], + tmp) { + enum ieee80211_band band = nla_type(attr); + + if (band < 0 || band > IEEE80211_NUM_BANDS) { + err = -EINVAL; + goto out_free; + } + err = ieee80211_get_ratemask(wiphy->bands[band], + nla_data(attr), + nla_len(attr), + &request->rates[band]); + if (err) + goto out_free; + } + } + request->dev = dev; request->wiphy = &rdev->wiphy; @@ -4336,25 +4361,12 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); struct ieee80211_supported_band *sband = wiphy->bands[ibss.channel->band]; - int i, j; - - if (n_rates == 0) - return -EINVAL; - - for (i = 0; i < n_rates; i++) { - int rate = (rates[i] & 0x7f) * 5; - bool found = false; + int err; - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) { - found = true; - ibss.basic_rates |= BIT(j); - break; - } - } - if (!found) - return -EINVAL; - } + err = ieee80211_get_ratemask(sband, rates, n_rates, + &ibss.basic_rates); + if (err) + return err; } if (info->attrs[NL80211_ATTR_MCAST_RATE] && diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 1c4672e35144..1e7ff949d1aa 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -862,6 +862,9 @@ int cfg80211_wext_siwscan(struct net_device *dev, creq->n_ssids = 0; } + for (i = 0; i < IEEE80211_NUM_BANDS; i++) + creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; + rdev->scan_req = creq; err = rdev->ops->scan(wiphy, dev, creq); if (err) { diff --git a/net/wireless/util.c b/net/wireless/util.c index 4d7b83fbc32f..a329429bfdd8 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1006,3 +1006,38 @@ int cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, return -EBUSY; } + +int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, + const u8 *rates, unsigned int n_rates, + u32 *mask) +{ + int i, j; + + if (n_rates == 0 || n_rates > NL80211_MAX_SUPP_RATES) + return -EINVAL; + + *mask = 0; + + for (i = 0; i < n_rates; i++) { + int rate = (rates[i] & 0x7f) * 5; + bool found = false; + + for (j = 0; j < sband->n_bitrates; j++) { + if (sband->bitrates[j].bitrate == rate) { + found = true; + *mask |= BIT(j); + break; + } + } + if (!found) + return -EINVAL; + } + + /* + * mask must have at least one bit set here since we + * didn't accept a 0-length rates array nor allowed + * entries in the array that didn't exist + */ + + return 0; +} |