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nl80211: retrieve interface data by wdev 

Since soon there will be virtual interfaces that
don't have a netdev, use the wdev identifier for
the API to retrieve interface data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-06-15 17:52:47 +02:00
Родитель 1bf614ef79
Коммит 72fb2abcf5
1 изменённых файлов: 15 добавлений и 11 удалений
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26
net/wireless/nl80211.c
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@ -1731,21 +1731,25 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
struct cfg80211_registered_device *rdev,
struct net_device *dev)
struct wireless_dev *wdev)
{
struct net_device *dev = wdev->netdev;
void *hdr;
u64 wdev_id = (u64)dev->ieee80211_ptr->identifier |
u64 wdev_id = (u64)wdev->identifier |
((u64)rdev->wiphy_idx << 32);
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
if (!hdr)
return -1;
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
nla_put_u32(msg, NL80211_ATTR_IFTYPE,
dev->ieee80211_ptr->iftype) ||
if (dev &&
(nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
goto nla_put_failure;
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id) ||
nla_put_u32(msg, NL80211_ATTR_GENERATION,
rdev->devlist_generation ^
@ -1794,7 +1798,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
}
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
rdev, wdev->netdev) < 0) {
rdev, wdev) < 0) {
mutex_unlock(&rdev->devlist_mtx);
goto out;
}
@ -1817,14 +1821,14 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
struct cfg80211_registered_device *dev = info->user_ptr[0];
struct net_device *netdev = info->user_ptr[1];
struct wireless_dev *wdev = info->user_ptr[1];
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
dev, netdev) < 0) {
dev, wdev) < 0) {
nlmsg_free(msg);
return -ENOBUFS;
}
@ -6833,7 +6837,7 @@ static struct genl_ops nl80211_ops[] = {
.dumpit = nl80211_dump_interface,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
.internal_flags = NL80211_FLAG_NEED_NETDEV,
.internal_flags = NL80211_FLAG_NEED_WDEV,
},
{
.cmd = NL80211_CMD_SET_INTERFACE,