diff options
| -rw-r--r-- | net/mac80211/cfg.c | 75 |
1 files changed, 57 insertions, 18 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 6981ba178e19..9e2bc1fd0237 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -13,31 +13,35 @@ #include "ieee80211_i.h" #include "cfg.h" +static enum ieee80211_if_types +nl80211_type_to_mac80211_type(enum nl80211_iftype type) +{ + switch (type) { + case NL80211_IFTYPE_UNSPECIFIED: + return IEEE80211_IF_TYPE_STA; + case NL80211_IFTYPE_ADHOC: + return IEEE80211_IF_TYPE_IBSS; + case NL80211_IFTYPE_STATION: + return IEEE80211_IF_TYPE_STA; + case NL80211_IFTYPE_MONITOR: + return IEEE80211_IF_TYPE_MNTR; + default: + return IEEE80211_IF_TYPE_INVALID; + } +} + static int ieee80211_add_iface(struct wiphy *wiphy, char *name, enum nl80211_iftype type) { struct ieee80211_local *local = wiphy_priv(wiphy); - int itype; + enum ieee80211_if_types itype; if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) return -ENODEV; - switch (type) { - case NL80211_IFTYPE_UNSPECIFIED: - itype = IEEE80211_IF_TYPE_STA; - break; - case NL80211_IFTYPE_ADHOC: - itype = IEEE80211_IF_TYPE_IBSS; - break; - case NL80211_IFTYPE_STATION: - itype = IEEE80211_IF_TYPE_STA; - break; - case NL80211_IFTYPE_MONITOR: - itype = IEEE80211_IF_TYPE_MNTR; - break; - default: + itype = nl80211_type_to_mac80211_type(type); + if (itype == IEEE80211_IF_TYPE_INVALID) return -EINVAL; - } return ieee80211_if_add(local->mdev, name, NULL, itype); } @@ -51,17 +55,52 @@ static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) return -ENODEV; - dev = dev_get_by_index(&init_net, ifindex); + /* we're under RTNL */ + dev = __dev_get_by_index(&init_net, ifindex); if (!dev) return 0; name = dev->name; - dev_put(dev); return ieee80211_if_remove(local->mdev, name, -1); } +static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, + enum nl80211_iftype type) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + struct net_device *dev; + enum ieee80211_if_types itype; + struct ieee80211_sub_if_data *sdata; + + if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) + return -ENODEV; + + /* we're under RTNL */ + dev = __dev_get_by_index(&init_net, ifindex); + if (!dev) + return -ENODEV; + + if (netif_running(dev)) + return -EBUSY; + + itype = nl80211_type_to_mac80211_type(type); + if (itype == IEEE80211_IF_TYPE_INVALID) + return -EINVAL; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (sdata->type == IEEE80211_IF_TYPE_VLAN) + return -EOPNOTSUPP; + + ieee80211_if_reinit(dev); + ieee80211_if_set_type(dev, itype); + + return 0; +} + struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, + .change_virtual_intf = ieee80211_change_iface, }; |