diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/nl80211.c | 40 | ||||
| -rw-r--r-- | net/wireless/rdev-ops.h | 13 | ||||
| -rw-r--r-- | net/wireless/trace.h | 18 |
3 files changed, 59 insertions, 12 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index ca75f60041d..0f1b18f209d 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1928,18 +1928,20 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, } static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, + struct net_device *dev, struct genl_info *info) { struct cfg80211_chan_def chandef; int result; enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; + struct wireless_dev *wdev = NULL; - if (wdev) - iftype = wdev->iftype; - + if (dev) + wdev = dev->ieee80211_ptr; if (!nl80211_can_set_dev_channel(wdev)) return -EOPNOTSUPP; + if (wdev) + iftype = wdev->iftype; result = nl80211_parse_chandef(rdev, info, &chandef); if (result) @@ -1948,14 +1950,27 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, switch (iftype) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_P2P_GO: - if (wdev->beacon_interval) { - result = -EBUSY; - break; - } if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) { result = -EINVAL; break; } + if (wdev->beacon_interval) { + if (!dev || !rdev->ops->set_ap_chanwidth || + !(rdev->wiphy.features & + NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) { + result = -EBUSY; + break; + } + + /* Only allow dynamic channel width changes */ + if (chandef.chan != wdev->preset_chandef.chan) { + result = -EBUSY; + break; + } + result = rdev_set_ap_chanwidth(rdev, dev, &chandef); + if (result) + break; + } wdev->preset_chandef = chandef; result = 0; break; @@ -1977,7 +1992,7 @@ static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *netdev = info->user_ptr[1]; - return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); + return __nl80211_set_channel(rdev, netdev, info); } static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) @@ -2099,9 +2114,10 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { - result = __nl80211_set_channel(rdev, - nl80211_can_set_dev_channel(wdev) ? wdev : NULL, - info); + result = __nl80211_set_channel( + rdev, + nl80211_can_set_dev_channel(wdev) ? netdev : NULL, + info); if (result) return result; } diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 74d97d33c93..00cdf73ba6c 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -950,4 +950,17 @@ static inline int rdev_set_qos_map(struct cfg80211_registered_device *rdev, return ret; } +static inline int +rdev_set_ap_chanwidth(struct cfg80211_registered_device *rdev, + struct net_device *dev, struct cfg80211_chan_def *chandef) +{ + int ret; + + trace_rdev_set_ap_chanwidth(&rdev->wiphy, dev, chandef); + ret = rdev->ops->set_ap_chanwidth(&rdev->wiphy, dev, chandef); + trace_rdev_return_int(&rdev->wiphy, ret); + + return ret; +} + #endif /* __CFG80211_RDEV_OPS */ diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 47b499f8f54..f3c13ff4d04 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -1919,6 +1919,24 @@ TRACE_EVENT(rdev_set_qos_map, WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->num_des) ); +TRACE_EVENT(rdev_set_ap_chanwidth, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_chan_def *chandef), + TP_ARGS(wiphy, netdev, chandef), + TP_STRUCT__entry( + WIPHY_ENTRY + NETDEV_ENTRY + CHAN_DEF_ENTRY + ), + TP_fast_assign( + WIPHY_ASSIGN; + NETDEV_ASSIGN; + CHAN_DEF_ASSIGN(chandef); + ), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT, + WIPHY_PR_ARG, NETDEV_PR_ARG, CHAN_DEF_PR_ARG) +); + /************************************************************* * cfg80211 exported functions traces * *************************************************************/ |