42613db760
This implements the cfg80211 change_interface hook that changes the type of an interface and cleans up the code a bit. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* mac80211 configuration hooks for cfg80211
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*
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* This file is GPLv2 as found in COPYING.
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*/
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <net/net_namespace.h>
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#include <net/cfg80211.h>
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#include "ieee80211_i.h"
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#include "cfg.h"
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static enum ieee80211_if_types
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nl80211_type_to_mac80211_type(enum nl80211_iftype type)
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{
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switch (type) {
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case NL80211_IFTYPE_UNSPECIFIED:
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return IEEE80211_IF_TYPE_STA;
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case NL80211_IFTYPE_ADHOC:
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return IEEE80211_IF_TYPE_IBSS;
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case NL80211_IFTYPE_STATION:
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return IEEE80211_IF_TYPE_STA;
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case NL80211_IFTYPE_MONITOR:
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return IEEE80211_IF_TYPE_MNTR;
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default:
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return IEEE80211_IF_TYPE_INVALID;
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}
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}
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static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
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enum nl80211_iftype type)
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{
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struct ieee80211_local *local = wiphy_priv(wiphy);
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enum ieee80211_if_types itype;
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if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
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return -ENODEV;
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itype = nl80211_type_to_mac80211_type(type);
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if (itype == IEEE80211_IF_TYPE_INVALID)
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return -EINVAL;
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return ieee80211_if_add(local->mdev, name, NULL, itype);
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}
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static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
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{
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struct ieee80211_local *local = wiphy_priv(wiphy);
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struct net_device *dev;
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char *name;
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if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
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return -ENODEV;
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/* we're under RTNL */
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dev = __dev_get_by_index(&init_net, ifindex);
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if (!dev)
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return 0;
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name = dev->name;
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return ieee80211_if_remove(local->mdev, name, -1);
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}
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static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
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enum nl80211_iftype type)
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{
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struct ieee80211_local *local = wiphy_priv(wiphy);
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struct net_device *dev;
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enum ieee80211_if_types itype;
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struct ieee80211_sub_if_data *sdata;
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if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
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return -ENODEV;
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/* we're under RTNL */
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dev = __dev_get_by_index(&init_net, ifindex);
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if (!dev)
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return -ENODEV;
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if (netif_running(dev))
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return -EBUSY;
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itype = nl80211_type_to_mac80211_type(type);
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if (itype == IEEE80211_IF_TYPE_INVALID)
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return -EINVAL;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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if (sdata->type == IEEE80211_IF_TYPE_VLAN)
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return -EOPNOTSUPP;
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ieee80211_if_reinit(dev);
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ieee80211_if_set_type(dev, itype);
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return 0;
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}
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struct cfg80211_ops mac80211_config_ops = {
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.add_virtual_intf = ieee80211_add_iface,
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.del_virtual_intf = ieee80211_del_iface,
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.change_virtual_intf = ieee80211_change_iface,
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};
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