From f04c22033c25f71617ac62bcfe75698baa17a0b8 Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Wed, 9 Apr 2014 15:11:01 +0200 Subject: cfg80211: export interface stopping function This exports a new cfg80211_stop_iface() function. This is intended for driver internal interface combination management and channel switching. Due to locking issues (it re-enters driver) the call is asynchronous and uses cfg80211 event list/worker. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg --- net/wireless/util.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/wireless/util.c') diff --git a/net/wireless/util.c b/net/wireless/util.c index 7c47fa07b276..a756429b3a0a 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -839,6 +839,9 @@ void cfg80211_process_wdev_events(struct wireless_dev *wdev) __cfg80211_ibss_joined(wdev->netdev, ev->ij.bssid, ev->ij.channel); break; + case EVENT_STOPPED: + __cfg80211_leave(wiphy_to_rdev(wdev->wiphy), wdev); + break; } wdev_unlock(wdev); -- cgit v1.2.2 From 8c48b50a1a888ac5511fe856d63f72fb688c6bb4 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 5 May 2014 11:48:40 +0200 Subject: cfg80211: allow restricting supported dfs regions At the moment, the ath9k/ath10k DFS module only supports detecting ETSI radar patterns. Add a bitmap in the interface combinations, indicating which DFS regions are supported by the detector. If unset, support for all regions is assumed. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- net/wireless/util.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'net/wireless/util.c') diff --git a/net/wireless/util.c b/net/wireless/util.c index a756429b3a0a..8c61d5c6fad3 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1274,10 +1274,20 @@ int cfg80211_iter_combinations(struct wiphy *wiphy, void *data), void *data) { + const struct ieee80211_regdomain *regdom; + enum nl80211_dfs_regions region = 0; int i, j, iftype; int num_interfaces = 0; u32 used_iftypes = 0; + if (radar_detect) { + rcu_read_lock(); + regdom = rcu_dereference(cfg80211_regdomain); + if (regdom) + region = regdom->dfs_region; + rcu_read_unlock(); + } + for (iftype = 0; iftype < NUM_NL80211_IFTYPES; iftype++) { num_interfaces += iftype_num[iftype]; if (iftype_num[iftype] > 0 && @@ -1318,6 +1328,10 @@ int cfg80211_iter_combinations(struct wiphy *wiphy, if (radar_detect != (c->radar_detect_widths & radar_detect)) goto cont; + if (radar_detect && c->radar_detect_regions && + !(c->radar_detect_regions & BIT(region))) + goto cont; + /* Finally check that all iftypes that we're currently * using are actually part of this combination. If they * aren't then we can't use this combination and have -- cgit v1.2.2 From c1e5f4714d591cc0a5e986613fdefa61abe98ac2 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 19 May 2014 17:53:16 +0200 Subject: cfg80211: constify more pointers in the cfg80211 API This also propagates through the drivers. The orinoco driver uses the cfg80211 API structs for internal bookkeeping, and so needs a (void *) cast that removes the const - but that's OK because it allocates those pointers. Signed-off-by: Johannes Berg --- net/wireless/util.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/wireless/util.c') diff --git a/net/wireless/util.c b/net/wireless/util.c index 8c61d5c6fad3..fa61ac9c9b26 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -476,7 +476,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, EXPORT_SYMBOL(ieee80211_data_to_8023); int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, - enum nl80211_iftype iftype, u8 *bssid, bool qos) + enum nl80211_iftype iftype, + const u8 *bssid, bool qos) { struct ieee80211_hdr hdr; u16 hdrlen, ethertype; -- cgit v1.2.2 From 7406353d43c8e2faf478721e87aeb6f2f9685de0 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Mon, 19 May 2014 21:53:21 +0200 Subject: cfg80211: implement cfg80211_get_station cfg80211 API Implement and export the new cfg80211_get_station() API. This utility can be used by other kernel modules to obtain detailed information about a given wireless station. It will be in particular useful to batman-adv which will implement a wireless rate based metric. Signed-off-by: Antonio Quartulli Signed-off-by: Johannes Berg --- net/wireless/util.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'net/wireless/util.c') diff --git a/net/wireless/util.c b/net/wireless/util.c index fa61ac9c9b26..728f1c0dc70d 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1546,6 +1546,24 @@ unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy) } EXPORT_SYMBOL(ieee80211_get_num_supported_channels); +int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr, + struct station_info *sinfo) +{ + struct cfg80211_registered_device *rdev; + struct wireless_dev *wdev; + + wdev = dev->ieee80211_ptr; + if (!wdev) + return -EOPNOTSUPP; + + rdev = wiphy_to_rdev(wdev->wiphy); + if (!rdev->ops->get_station) + return -EOPNOTSUPP; + + return rdev_get_station(rdev, dev, mac_addr, sinfo); +} +EXPORT_SYMBOL(cfg80211_get_station); + /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ const unsigned char rfc1042_header[] __aligned(2) = -- cgit v1.2.2