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authorJouni Malinen <jouni.malinen@atheros.com>2011-05-16 19:40:15 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-05-19 10:37:18 -0400
commited9d01026f156db2d638cbb045231c7a8fde877d (patch)
tree0c99c25b87973112db1b8464e5ad429cd943786f /net
parent79d2b1570bcc31b846ccb2114a34e98ca87bf1d9 (diff)
downloadvexpress-lsk-ed9d01026f156db2d638cbb045231c7a8fde877d.tar.gz
cfg80211: Use consistent BSS matching between scan and sme
cfg80211 scan code adds separate BSS entries if the same BSS shows up on multiple channels. However, sme implementation does not use the frequency when fetching the BSS entry. Fix this by adding channel information to cfg80211_roamed() and include it in cfg80211_get_bss() calls. Please note that drivers using cfg80211_roamed() need to be modified to fully implement this fix. This commit includes only minimal changes to avoid compilation issues; it maintains the old (broken) behavior for most drivers. ath6kl was the only one that I could test, so I updated it to provide the operating frequency in the roamed event. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/wireless/core.h5
-rw-r--r--net/wireless/sme.c19
-rw-r--r--net/wireless/util.c2
3 files changed, 19 insertions, 7 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h
index bf0fb40e3c8..3dce1f167eb 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -245,6 +245,7 @@ struct cfg80211_event {
u16 status;
} cr;
struct {
+ struct ieee80211_channel *channel;
u8 bssid[ETH_ALEN];
const u8 *req_ie;
const u8 *resp_ie;
@@ -392,7 +393,9 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
struct net_device *dev, u16 reason,
bool wextev);
-void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
+void __cfg80211_roamed(struct wireless_dev *wdev,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
const u8 *resp_ie, size_t resp_ie_len);
int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index e17b0bee6bd..b7b6ff8be55 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -250,7 +250,8 @@ static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
if (wdev->conn->params.privacy)
capa |= WLAN_CAPABILITY_PRIVACY;
- bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid,
+ bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
+ wdev->conn->params.bssid,
wdev->conn->params.ssid,
wdev->conn->params.ssid_len,
WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY,
@@ -470,7 +471,10 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
}
if (!bss)
- bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
+ bss = cfg80211_get_bss(wdev->wiphy,
+ wdev->conn ? wdev->conn->params.channel :
+ NULL,
+ bssid,
wdev->ssid, wdev->ssid_len,
WLAN_CAPABILITY_ESS,
WLAN_CAPABILITY_ESS);
@@ -538,7 +542,9 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
}
EXPORT_SYMBOL(cfg80211_connect_result);
-void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
+void __cfg80211_roamed(struct wireless_dev *wdev,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
const u8 *resp_ie, size_t resp_ie_len)
{
@@ -565,7 +571,7 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
cfg80211_put_bss(&wdev->current_bss->pub);
wdev->current_bss = NULL;
- bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
+ bss = cfg80211_get_bss(wdev->wiphy, channel, bssid,
wdev->ssid, wdev->ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
@@ -603,7 +609,9 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
#endif
}
-void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
+void cfg80211_roamed(struct net_device *dev,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
{
@@ -619,6 +627,7 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
return;
ev->type = EVENT_ROAMED;
+ ev->rm.channel = channel;
memcpy(ev->rm.bssid, bssid, ETH_ALEN);
ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
ev->rm.req_ie_len = req_ie_len;
diff --git a/net/wireless/util.c b/net/wireless/util.c
index f0536d44d43..4d7b83fbc32 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -746,7 +746,7 @@ static void cfg80211_process_wdev_events(struct wireless_dev *wdev)
NULL);
break;
case EVENT_ROAMED:
- __cfg80211_roamed(wdev, ev->rm.bssid,
+ __cfg80211_roamed(wdev, ev->rm.channel, ev->rm.bssid,
ev->rm.req_ie, ev->rm.req_ie_len,
ev->rm.resp_ie, ev->rm.resp_ie_len);
break;