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nl80211: move scan API to wdev

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The new P2P Device will have to be able to scan for
P2P search, so move scanning to use struct wireless_dev
instead of struct net_device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-06-18 19:17:03 +02:00
parent 1c90f9d404
commit fd0142844e
14 changed files with 57 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/mac80211/cfg.c
+3 -2
View File
@@ -1763,10 +1763,11 @@ static int ieee80211_resume(struct wiphy *wiphy)
#endif
static int ieee80211_scan(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_scan_request *req)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
switch (ieee80211_vif_type_p2p(&sdata->vif)) {
case NL80211_IFTYPE_STATION:
net/wireless/core.c
+1 -1
View File
@@ -708,7 +708,7 @@ static void wdev_cleanup_work(struct work_struct *work)
cfg80211_lock_rdev(rdev);
if (WARN_ON(rdev->scan_req && rdev->scan_req->dev == wdev->netdev)) {
if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
rdev->scan_req->aborted = true;
___cfg80211_scan_done(rdev, true);
}
net/wireless/nl80211.c
+17 -14
View File
@@ -4130,7 +4130,7 @@ static int validate_scan_freqs(struct nlattr *freqs)
static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = info->user_ptr[1];
struct cfg80211_scan_request *request;
struct nlattr *attr;
struct wiphy *wiphy;
@@ -4290,15 +4290,16 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
request->no_cck =
nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
request->dev = dev;
request->wdev = wdev;
request->wiphy = &rdev->wiphy;
rdev->scan_req = request;
err = rdev->ops->scan(&rdev->wiphy, dev, request);
err = rdev->ops->scan(&rdev->wiphy, request);
if (!err) {
nl80211_send_scan_start(rdev, dev);
dev_hold(dev);
nl80211_send_scan_start(rdev, wdev);
if (wdev->netdev)
dev_hold(wdev->netdev);
} else {
out_free:
rdev->scan_req = NULL;
@@ -7066,7 +7067,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_trigger_scan,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
@@ -7458,7 +7459,7 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
static int nl80211_send_scan_msg(struct sk_buff *msg,
struct cfg80211_registered_device *rdev,
struct net_device *netdev,
struct wireless_dev *wdev,
u32 pid, u32 seq, int flags,
u32 cmd)
{
@@ -7469,7 +7470,9 @@ static int nl80211_send_scan_msg(struct sk_buff *msg,
return -1;
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
(wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
wdev->netdev->ifindex)) ||
nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
goto nla_put_failure;
/* ignore errors and send incomplete event anyway */
@@ -7506,7 +7509,7 @@ nl80211_send_sched_scan_msg(struct sk_buff *msg,
}
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
struct net_device *netdev)
struct wireless_dev *wdev)
{
struct sk_buff *msg;
@@ -7514,7 +7517,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
if (!msg)
return;
if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
NL80211_CMD_TRIGGER_SCAN) < 0) {
nlmsg_free(msg);
return;
@@ -7525,7 +7528,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
}
void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
struct net_device *netdev)
struct wireless_dev *wdev)
{
struct sk_buff *msg;
@@ -7533,7 +7536,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
if (!msg)
return;
if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
nlmsg_free(msg);
return;
@@ -7544,7 +7547,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
}
void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
struct net_device *netdev)
struct wireless_dev *wdev)
{
struct sk_buff *msg;
@@ -7552,7 +7555,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
if (!msg)
return;
if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
NL80211_CMD_SCAN_ABORTED) < 0) {
nlmsg_free(msg);
return;
net/wireless/nl80211.h
+3 -3
View File
@@ -7,11 +7,11 @@ int nl80211_init(void);
void nl80211_exit(void);
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
struct net_device *netdev);
struct wireless_dev *wdev);
void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
struct net_device *netdev);
struct wireless_dev *wdev);
void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
struct net_device *netdev);
struct wireless_dev *wdev);
void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
struct net_device *netdev, u32 cmd);
void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
net/wireless/scan.c
+13 -11
View File
@@ -23,7 +23,7 @@
void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
{
struct cfg80211_scan_request *request;
struct net_device *dev;
struct wireless_dev *wdev;
#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -35,29 +35,31 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
if (!request)
return;
dev = request->dev;
wdev = request->wdev;
/*
* This must be before sending the other events!
* Otherwise, wpa_supplicant gets completely confused with
* wext events.
*/
cfg80211_sme_scan_done(dev);
if (wdev->netdev)
cfg80211_sme_scan_done(wdev->netdev);
if (request->aborted)
nl80211_send_scan_aborted(rdev, dev);
nl80211_send_scan_aborted(rdev, wdev);
else
nl80211_send_scan_done(rdev, dev);
nl80211_send_scan_done(rdev, wdev);
#ifdef CONFIG_CFG80211_WEXT
if (!request->aborted) {
if (wdev->netdev && !request->aborted) {
memset(&wrqu, 0, sizeof(wrqu));
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
wireless_send_event(wdev->netdev, SIOCGIWSCAN, &wrqu, NULL);
}
#endif
dev_put(dev);
if (wdev->netdev)
dev_put(wdev->netdev);
rdev->scan_req = NULL;
@@ -955,7 +957,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
}
creq->wiphy = wiphy;
creq->dev = dev;
creq->wdev = dev->ieee80211_ptr;
/* SSIDs come after channels */
creq->ssids = (void *)&creq->channels[n_channels];
creq->n_channels = n_channels;
@@ -1024,12 +1026,12 @@ int cfg80211_wext_siwscan(struct net_device *dev,
creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
rdev->scan_req = creq;
err = rdev->ops->scan(wiphy, dev, creq);
err = rdev->ops->scan(wiphy, creq);
if (err) {
rdev->scan_req = NULL;
/* creq will be freed below */
} else {
nl80211_send_scan_start(rdev, dev);
nl80211_send_scan_start(rdev, dev->ieee80211_ptr);
/* creq now owned by driver */
creq = NULL;
dev_hold(dev);
net/wireless/sme.c
+3 -3
View File
@@ -136,15 +136,15 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
wdev->conn->params.ssid_len);
request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
request->dev = wdev->netdev;
request->wdev = wdev;
request->wiphy = &rdev->wiphy;
rdev->scan_req = request;
err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request);
err = rdev->ops->scan(wdev->wiphy, request);
if (!err) {
wdev->conn->state = CFG80211_CONN_SCANNING;
nl80211_send_scan_start(rdev, wdev->netdev);
nl80211_send_scan_start(rdev, wdev);
dev_hold(wdev->netdev);
} else {
rdev->scan_req = NULL;