diff options
author | Ayala Beker <ayala.beker@intel.com> | 2016-09-20 17:31:16 +0300 |
---|---|---|
committer | Johannes Berg <johannes.berg@intel.com> | 2016-09-30 14:21:28 +0300 |
commit | a5a9dcf291e1e541243878eed2d73a74006fa1f1 (patch) | |
tree | 74662fbcd9476c6fc296d16247c281a310614463 /net | |
parent | a442b761b24b6886f9a4e2ff5f8cb4824c96526b (diff) | |
download | linux-a5a9dcf291e1e541243878eed2d73a74006fa1f1.tar.xz |
cfg80211: allow the user space to change current NAN configuration
Some NAN configuration paramaters may change during the operation of
the NAN device. For example, a user may want to update master preference
value when the device gets plugged/unplugged to the power.
Add API that allows to do so.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r-- | net/wireless/nl80211.c | 42 | ||||
-rw-r--r-- | net/wireless/rdev-ops.h | 17 | ||||
-rw-r--r-- | net/wireless/trace.h | 24 |
3 files changed, 83 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0eca59ccd685..c0b5ae4af2d8 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10919,6 +10919,40 @@ static int nl80211_nan_del_func(struct sk_buff *skb, return 0; } +static int nl80211_nan_change_config(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct wireless_dev *wdev = info->user_ptr[1]; + struct cfg80211_nan_conf conf = {}; + u32 changed = 0; + + if (wdev->iftype != NL80211_IFTYPE_NAN) + return -EOPNOTSUPP; + + if (!wdev->nan_started) + return -ENOTCONN; + + if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) { + conf.master_pref = + nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]); + if (conf.master_pref <= 1 || conf.master_pref == 255) + return -EINVAL; + + changed |= CFG80211_NAN_CONF_CHANGED_PREF; + } + + if (info->attrs[NL80211_ATTR_NAN_DUAL]) { + conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]); + changed |= CFG80211_NAN_CONF_CHANGED_DUAL; + } + + if (!changed) + return -EINVAL; + + return rdev_nan_change_conf(rdev, wdev, &conf, changed); +} + static int nl80211_get_protocol_features(struct sk_buff *skb, struct genl_info *info) { @@ -12293,6 +12327,14 @@ static const struct genl_ops nl80211_ops[] = { NL80211_FLAG_NEED_RTNL, }, { + .cmd = NL80211_CMD_CHANGE_NAN_CONFIG, + .doit = nl80211_nan_change_config, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { .cmd = NL80211_CMD_SET_MCAST_RATE, .doit = nl80211_set_mcast_rate, .policy = nl80211_policy, diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 98c4c3bdcb11..11cf83c8ad4f 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -928,6 +928,23 @@ static inline void rdev_del_nan_func(struct cfg80211_registered_device *rdev, trace_rdev_return_void(&rdev->wiphy); } +static inline int +rdev_nan_change_conf(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + struct cfg80211_nan_conf *conf, u32 changes) +{ + int ret; + + trace_rdev_nan_change_conf(&rdev->wiphy, wdev, conf, changes); + if (rdev->ops->nan_change_conf) + ret = rdev->ops->nan_change_conf(&rdev->wiphy, wdev, conf, + changes); + else + ret = -ENOTSUPP; + trace_rdev_return_int(&rdev->wiphy, ret); + return ret; +} + static inline int rdev_set_mac_acl(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_acl_data *params) diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 56089843d619..a3d0a91b1e09 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -1911,6 +1911,30 @@ TRACE_EVENT(rdev_start_nan, __entry->dual) ); +TRACE_EVENT(rdev_nan_change_conf, + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_nan_conf *conf, u32 changes), + TP_ARGS(wiphy, wdev, conf, changes), + TP_STRUCT__entry( + WIPHY_ENTRY + WDEV_ENTRY + __field(u8, master_pref) + __field(u8, dual); + __field(u32, changes); + ), + TP_fast_assign( + WIPHY_ASSIGN; + WDEV_ASSIGN; + __entry->master_pref = conf->master_pref; + __entry->dual = conf->dual; + __entry->changes = changes; + ), + TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT + ", master preference: %u, dual: %d, changes: %x", + WIPHY_PR_ARG, WDEV_PR_ARG, __entry->master_pref, + __entry->dual, __entry->changes) +); + DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_nan, TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev), TP_ARGS(wiphy, wdev) |