/* * mac80211 configuration hooks for cfg80211 * * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> * * This file is GPLv2 as found in COPYING. */ #include <linux/nl80211.h> #include <linux/rtnetlink.h> #include <net/net_namespace.h> #include <net/cfg80211.h> #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); enum ieee80211_if_types itype; if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) return -ENODEV; itype = nl80211_type_to_mac80211_type(type); if (itype == IEEE80211_IF_TYPE_INVALID) return -EINVAL; return ieee80211_if_add(local->mdev, name, NULL, itype); } static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) { struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; char *name; 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 0; name = dev->name; 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, };