aboutsummaryrefslogtreecommitdiff
path: root/drivers/net
diff options
context:
space:
mode:
authorDan Williams <dcbw@redhat.com>2007-05-25 22:30:48 -0400
committerJohn W. Linville <linville@tuxdriver.com>2007-06-11 14:28:43 -0400
commitaeea0ab45ae3d761064ca926863bb41f0ad167ce (patch)
tree014af0acbc6920cb0cea7e3cb9377365f8ade54e /drivers/net
parentac26f81ccecc23ad5d8c20ebe1dd482fa395298b (diff)
downloadlinux-2.6.34-ux500-aeea0ab45ae3d761064ca926863bb41f0ad167ce.tar.gz
[PATCH] libertas: honor specific channel requests during association
Previously if a fixed channel was specified along with an SSID, the channel request would be ignored during the association process. Instead, when searching for an adhoc or infrastructure network to join, allow filtering results based on channel so that the driver doesn't pick a BSS on a different channel than requested. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/libertas/assoc.c8
-rw-r--r--drivers/net/wireless/libertas/scan.c7
-rw-r--r--drivers/net/wireless/libertas/scan.h3
3 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index afce32761bf..4fcc6a653d9 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -70,6 +70,7 @@ static int assoc_helper_essid(wlan_private *priv,
wlan_adapter *adapter = priv->adapter;
int ret = 0;
struct bss_descriptor * bss;
+ int channel = -1;
lbs_deb_enter(LBS_DEB_ASSOC);
@@ -77,6 +78,9 @@ static int assoc_helper_essid(wlan_private *priv,
* is set.
*/
+ if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
+ channel = assoc_req->channel;
+
lbs_deb_assoc("New SSID requested: %s\n", assoc_req->ssid.ssid);
if (assoc_req->mode == IW_MODE_INFRA) {
if (adapter->prescan) {
@@ -84,7 +88,7 @@ static int assoc_helper_essid(wlan_private *priv,
}
bss = libertas_find_SSID_in_list(adapter, &assoc_req->ssid,
- NULL, IW_MODE_INFRA);
+ NULL, IW_MODE_INFRA, channel);
if (bss != NULL) {
lbs_deb_assoc("SSID found in scan list, associating\n");
memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
@@ -101,7 +105,7 @@ static int assoc_helper_essid(wlan_private *priv,
/* Search for the requested SSID in the scan table */
bss = libertas_find_SSID_in_list(adapter, &assoc_req->ssid, NULL,
- IW_MODE_ADHOC);
+ IW_MODE_ADHOC, channel);
if (bss != NULL) {
lbs_deb_assoc("SSID found joining\n");
memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 8aaac5f6c9d..83b1612e84b 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -1268,7 +1268,8 @@ struct bss_descriptor * libertas_find_BSSID_in_list(wlan_adapter * adapter,
* @return index in BSSID list
*/
struct bss_descriptor * libertas_find_SSID_in_list(wlan_adapter * adapter,
- struct WLAN_802_11_SSID *ssid, u8 * bssid, u8 mode)
+ struct WLAN_802_11_SSID *ssid, u8 * bssid, u8 mode,
+ int channel)
{
u8 bestrssi = 0;
struct bss_descriptor * iter_bss = NULL;
@@ -1286,6 +1287,8 @@ struct bss_descriptor * libertas_find_SSID_in_list(wlan_adapter * adapter,
continue; /* ssid doesn't match */
if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
continue; /* bssid doesn't match */
+ if ((channel > 0) && (iter_bss->channel != channel))
+ continue; /* channel doesn't match */
switch (mode) {
case IW_MODE_INFRA:
@@ -1661,7 +1664,7 @@ int libertas_get_scan(struct net_device *dev, struct iw_request_info *info,
wlan_scan_networks(priv, NULL, 0);
/* Update RSSI if current BSS is a locally created ad-hoc BSS */
- if ((adapter->inframode == wlan802_11ibss) && adapter->adhoccreate) {
+ if ((adapter->mode == IW_MODE_ADHOC) && adapter->adhoccreate) {
libertas_prepare_and_send_command(priv, cmd_802_11_rssi, 0,
cmd_option_waitforrsp, 0, NULL);
}
diff --git a/drivers/net/wireless/libertas/scan.h b/drivers/net/wireless/libertas/scan.h
index 4ad130ff6e7..df7481c11f6 100644
--- a/drivers/net/wireless/libertas/scan.h
+++ b/drivers/net/wireless/libertas/scan.h
@@ -178,7 +178,8 @@ extern int libertas_SSID_cmp(struct WLAN_802_11_SSID *ssid1,
struct WLAN_802_11_SSID *ssid2);
struct bss_descriptor * libertas_find_SSID_in_list(wlan_adapter * adapter,
- struct WLAN_802_11_SSID *ssid, u8 * bssid, u8 mode);
+ struct WLAN_802_11_SSID *ssid, u8 * bssid, u8 mode,
+ int channel);
struct bss_descriptor * libertas_find_best_SSID_in_list(wlan_adapter * adapter,
u8 mode);