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cfg80211: show interface type

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This patch makes cfg80211 show the interface in the nl80211
information about a specific interface. API users are required
to keep the type updated (everything else is fairly complicated)
but you will get a warning if you fail to keep it updated.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-09-16 14:55:09 +02:00 committed by John W. Linville
parent 133b822638
commit 60719ffd72
5 changed files with 14 additions and 3 deletions
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6
include/net/cfg80211.h
View File

@ -363,11 +363,13 @@ struct wiphy;
* wireless extensions but this is subject to reevaluation as soon as this
* code is used more widely and we have a first user without wext.
*
* @add_virtual_intf: create a new virtual interface with the given name
* @add_virtual_intf: create a new virtual interface with the given name,
* must set the struct wireless_dev's iftype.
*
* @del_virtual_intf: remove the virtual interface determined by ifindex.
*
* @change_virtual_intf: change type of virtual interface
* @change_virtual_intf: change type/configuration of virtual interface,
* keep the struct wireless_dev's iftype updated.
*
* @add_key: add a key with the given parameters. @mac_addr will be %NULL
* when adding a group key.

2
include/net/wireless.h
View File

@ -223,9 +223,11 @@ struct wiphy {
* the netdev.)
*
* @wiphy: pointer to hardware description
* @iftype: interface type
*/
struct wireless_dev {
struct wiphy *wiphy;
enum nl80211_iftype iftype;
/* private to the generic wireless code */
struct list_head list;

1
net/mac80211/iface.c
View File

@ -625,6 +625,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
/* and set some type-dependent values */
sdata->vif.type = type;
sdata->dev->hard_start_xmit = ieee80211_subif_start_xmit;
sdata->wdev.iftype = type;
/* only monitor differs */
sdata->dev->type = ARPHRD_ETHER;

2
net/wireless/core.c
View File

@ -384,6 +384,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
WARN_ON(dev->ieee80211_ptr->iftype == NL80211_IFTYPE_UNSPECIFIED);
switch (state) {
case NETDEV_REGISTER:
mutex_lock(&rdev->devlist_mtx);

6
net/wireless/nl80211.c
View File

@ -299,7 +299,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
/* TODO: interface type */
NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
return genlmsg_end(msg, hdr);
nla_put_failure:
@ -453,6 +453,10 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
&flags);
err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
type, err ? NULL : &flags, &params);
dev = __dev_get_by_index(&init_net, ifindex);
WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
rtnl_unlock();
unlock: