This patch adds code to extract the SSID from the beacon template used for
ad-hoc. The mac80211 currently does not provide the SSID, so this is a
workaround for that, for now.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
Reviewed-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/wl12xx/wl1271_event.c | 10 +++-
drivers/net/wireless/wl12xx/wl1271_main.c | 69 +++++++++++++++++----------
2 files changed, 51 insertions(+), 28 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c
index cecbae2..2803e70 100644
--- a/drivers/net/wireless/wl12xx/wl1271_event.c
+++ b/drivers/net/wireless/wl12xx/wl1271_event.c
@@ -92,7 +92,12 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
true);
} else {
wl1271_error("PSM entry failed, giving up.\n");
- /* make sure the firmware goes into active mode */
+ /* FIXME: this may need to be reconsidered. for now it
+ is not possible to indicate to the mac80211
+ afterwards that PSM entry failed. To maximize
+ functionality (receiving data and remaining
+ associated) make sure that we are in sync with the
+ AP in regard of PSM mode. */
ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
false);
wl->psm_entry_retry = 0;
@@ -124,7 +129,8 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
break;
}
- /* make sure the firmware goes to active mode */
+ /* make sure the firmware goes to active mode - the frame to
+ be sent next will indicate to the AP, that we are active. */
ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
false);
break;
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 8b46b70..a3742c8 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -1549,6 +1549,23 @@ out:
return ret;
}
+static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *beacon)
+{
+ u8 *ptr = beacon->data +
+ offsetof(struct ieee80211_mgmt, u.beacon.variable);
+
+ /* find the location of the ssid in the beacon */
+ while (ptr < beacon->data + beacon->len) {
+ if (ptr[0] == WLAN_EID_SSID) {
+ wl->ssid_len = ptr[1];
+ memcpy(wl->ssid, ptr+2, wl->ssid_len);
+ return;
+ }
+ ptr += ptr[1];
+ }
+ wl1271_error("ad-hoc beacon template has no SSID!\n");
+}
+
static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -1566,40 +1583,17 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
if (ret < 0)
goto out;
- if ((changed & BSS_CHANGED_BSSID) &&
- /*
- * Now we know the correct bssid, so we send a new join command
- * and enable the BSSID filter
- */
- memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
- wl->rx_config |= CFG_BSSID_FILTER_EN;
- memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
- ret = wl1271_cmd_build_null_data(wl);
- if (ret < 0) {
- wl1271_warning("cmd buld null data failed %d",
- ret);
- goto out_sleep;
- }
- ret = wl1271_cmd_join(wl);
- if (ret < 0) {
- wl1271_warning("cmd join failed %d", ret);
- goto out_sleep;
- }
- set_bit(WL1271_FLAG_JOINED, &wl->flags);
- }
-
if (wl->bss_type == BSS_TYPE_IBSS) {
/* FIXME: This implements rudimentary ad-hoc support -
proper templates are on the wish list and notification
on when they change. This patch will update the templates
- on every call to this function. Also, the firmware will not
- answer to probe-requests as it does not have the proper
- SSID set in the JOIN command. The probe-response template
- is set nevertheless, as the FW will ASSERT without it */
+ on every call to this function. */
struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
if (beacon) {
struct ieee80211_hdr *hdr;
+
+ wl1271_ssid_set(wl, beacon);
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
beacon->data,
beacon->len);
@@ -1624,6 +1618,29 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
}
}
+ if ((changed & BSS_CHANGED_BSSID) &&
+ /*
+ * Now we know the correct bssid, so we send a new join command
+ * and enable the BSSID filter
+ */
+ memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
+ wl->rx_config |= CFG_BSSID_FILTER_EN;
+ memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
+ ret = wl1271_cmd_build_null_data(wl);
+ if (ret < 0) {
+ wl1271_warning("cmd buld null data failed %d",
+ ret);
+ goto out_sleep;
+ }
+
+ ret = wl1271_cmd_join(wl);
+ if (ret < 0) {
+ wl1271_warning("cmd join failed %d", ret);
+ goto out_sleep;
+ }
+ set_bit(WL1271_FLAG_JOINED, &wl->flags);
+ }
+
if (changed & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
wl->aid = bss_conf->aid;
--
1.6.3.3
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