From: Johannes Berg <johannes.berg@xxxxxxxxx>
When using the cfg80211_inform_bss[_width]() functions drivers
cannot currently indicate whether the data was received in a
beacon or probe response. Fix that by passing a new enum that
indicates such (or unknown).
For good measure, use it in ath6kl.
Acked-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx> [ath6kl]
Acked-by: Arend van Spriel <arend@xxxxxxxxxxxx> [brcmfmac]
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 1 +
drivers/net/wireless/ath/ath6kl/wmi.c | 43 +++++-----------------
drivers/net/wireless/ath/wil6210/wmi.c | 2 +-
.../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 18 ++++++---
drivers/net/wireless/libertas/cfg.c | 2 +
drivers/net/wireless/mwifiex/cfg80211.c | 1 +
drivers/net/wireless/mwifiex/scan.c | 3 +-
drivers/net/wireless/orinoco/scan.c | 14 ++++---
drivers/net/wireless/rndis_wlan.c | 14 ++++---
drivers/staging/wlan-ng/cfg80211.c | 1 +
include/net/cfg80211.h | 20 +++++++++-
net/wireless/scan.c | 15 +++++++-
12 files changed, 76 insertions(+), 58 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 0e26f4a34fda..357515b1c882 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -717,6 +717,7 @@ ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
memcpy(ie + 2, vif->ssid, vif->ssid_len);
memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
bss = cfg80211_inform_bss(ar->wiphy, chan,
+ CFG80211_BSS_FTYPE_UNKNOWN,
bssid, 0, cap_val, 100,
ie, 2 + vif->ssid_len + beacon_ie_len,
0, GFP_KERNEL);
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index eca3014e9544..929ba5d4bb4b 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -1043,7 +1043,6 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
u8 *buf;
struct ieee80211_channel *channel;
struct ath6kl *ar = wmi->parent_dev;
- struct ieee80211_mgmt *mgmt;
struct cfg80211_bss *bss;
if (len <= sizeof(struct wmi_bss_info_hdr2))
@@ -1089,39 +1088,15 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
}
}
- /*
- * In theory, use of cfg80211_inform_bss() would be more natural here
- * since we do not have the full frame. However, at least for now,
- * cfg80211 can only distinguish Beacon and Probe Response frames from
- * each other when using cfg80211_inform_bss_frame(), so let's build a
- * fake IEEE 802.11 header to be able to take benefit of this.
- */
- mgmt = kmalloc(24 + len, GFP_ATOMIC);
- if (mgmt == NULL)
- return -EINVAL;
-
- if (bih->frame_type == BEACON_FTYPE) {
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_BEACON);
- memset(mgmt->da, 0xff, ETH_ALEN);
- } else {
- struct net_device *dev = vif->ndev;
-
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
- memcpy(mgmt->da, dev->dev_addr, ETH_ALEN);
- }
- mgmt->duration = cpu_to_le16(0);
- memcpy(mgmt->sa, bih->bssid, ETH_ALEN);
- memcpy(mgmt->bssid, bih->bssid, ETH_ALEN);
- mgmt->seq_ctrl = cpu_to_le16(0);
-
- memcpy(&mgmt->u.beacon, buf, len);
-
- bss = cfg80211_inform_bss_frame(ar->wiphy, channel, mgmt,
- 24 + len, (bih->snr - 95) * 100,
- GFP_ATOMIC);
- kfree(mgmt);
+ bss = cfg80211_inform_bss(ar->wiphy, channel,
+ bih->frame_type == BEACON_FTYPE ?
+ CFG80211_BSS_FTYPE_BEACON :
+ CFG80211_BSS_FTYPE_PRESP,
+ bih->bssid, get_unaligned_le64((__le64 *)buf),
+ get_unaligned_le16(((__le16 *)buf) + 5),
+ get_unaligned_le16(((__le16 *)buf) + 4),
+ buf + 8 + 2 + 2, len - 8 - 2 - 2,
+ (bih->snr - 95) * 100, GFP_ATOMIC);
if (bss == NULL)
return -ENOMEM;
cfg80211_put_bss(ar->wiphy, bss);
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 16787e9124a2..bc4932142f63 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -335,7 +335,7 @@ static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
rx_mgmt_frame->bssid);
cfg80211_put_bss(wiphy, bss);
} else {
- wil_err(wil, "cfg80211_inform_bss() failed\n");
+ wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
}
} else {
cfg80211_rx_mgmt(wil->wdev, freq, signal,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index d8fa276e368b..9a45ef064dd9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -2429,9 +2429,13 @@ static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
- bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
- 0, notify_capability, notify_interval, notify_ie,
- notify_ielen, notify_signal, GFP_KERNEL);
+ bss = cfg80211_inform_bss(wiphy, notify_channel,
+ CFG80211_BSS_FTYPE_UNKNOWN,
+ (const u8 *)bi->BSSID,
+ 0, notify_capability,
+ notify_interval, notify_ie,
+ notify_ielen, notify_signal,
+ GFP_KERNEL);
if (!bss)
return -ENOMEM;
@@ -2533,9 +2537,11 @@ static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
brcmf_dbg(CONN, "signal: %d\n", notify_signal);
- bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
- 0, notify_capability, notify_interval,
- notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
+ bss = cfg80211_inform_bss(wiphy, notify_channel,
+ CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
+ notify_capability, notify_interval,
+ notify_ie, notify_ielen, notify_signal,
+ GFP_KERNEL);
if (!bss) {
err = -ENOMEM;
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index 47a998d8f99e..22884ba7d6cc 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -653,6 +653,7 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
if (channel &&
!(channel->flags & IEEE80211_CHAN_DISABLED)) {
bss = cfg80211_inform_bss(wiphy, channel,
+ CFG80211_BSS_FTYPE_UNKNOWN,
bssid, get_unaligned_le64(tsfdesc),
capa, intvl, ie, ielen,
LBS_SCAN_RSSI_TO_MBM(rssi),
@@ -1754,6 +1755,7 @@ static void lbs_join_post(struct lbs_private *priv,
bss = cfg80211_inform_bss(priv->wdev->wiphy,
params->chandef.chan,
+ CFG80211_BSS_FTYPE_UNKNOWN,
bssid,
0,
capability,
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 149d2e693bdd..00e4d7a3281f 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1588,6 +1588,7 @@ static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
band));
bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
+ CFG80211_BSS_FTYPE_UNKNOWN,
bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
0, ie_buf, ie_len, 0, GFP_KERNEL);
cfg80211_put_bss(priv->wdev->wiphy, bss);
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 45c5b3450cf5..f0f3257fe968 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1719,7 +1719,8 @@ mwifiex_parse_single_response_buf(struct mwifiex_private *priv, u8 **bss_info,
if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
bss = cfg80211_inform_bss(priv->wdev->wiphy,
- chan, bssid, timestamp,
+ chan, CFG80211_BSS_FTYPE_UNKNOWN,
+ bssid, timestamp,
cap_info_bitmap, beacon_period,
ie_buf, ie_len, rssi, GFP_KERNEL);
bss_priv = (struct mwifiex_bss_priv *)bss->priv;
diff --git a/drivers/net/wireless/orinoco/scan.c b/drivers/net/wireless/orinoco/scan.c
index e175b9b8561b..2c66166add70 100644
--- a/drivers/net/wireless/orinoco/scan.c
+++ b/drivers/net/wireless/orinoco/scan.c
@@ -123,9 +123,10 @@ static void orinoco_add_hostscan_result(struct orinoco_private *priv,
beacon_interval = le16_to_cpu(bss->a.beacon_interv);
signal = SIGNAL_TO_MBM(le16_to_cpu(bss->a.level));
- cbss = cfg80211_inform_bss(wiphy, channel, bss->a.bssid, timestamp,
- capability, beacon_interval, ie_buf, ie_len,
- signal, GFP_KERNEL);
+ cbss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,
+ bss->a.bssid, timestamp, capability,
+ beacon_interval, ie_buf, ie_len, signal,
+ GFP_KERNEL);
cfg80211_put_bss(wiphy, cbss);
}
@@ -156,9 +157,10 @@ void orinoco_add_extscan_result(struct orinoco_private *priv,
ie = bss->data;
signal = SIGNAL_TO_MBM(bss->level);
- cbss = cfg80211_inform_bss(wiphy, channel, bss->bssid, timestamp,
- capability, beacon_interval, ie, ie_len,
- signal, GFP_KERNEL);
+ cbss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,
+ bss->bssid, timestamp, capability,
+ beacon_interval, ie, ie_len, signal,
+ GFP_KERNEL);
cfg80211_put_bss(wiphy, cbss);
}
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index d2a9a08210be..1a4facd1fbf3 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -2022,9 +2022,10 @@ static bool rndis_bss_info_update(struct usbnet *usbdev,
capability = le16_to_cpu(fixed->capabilities);
beacon_interval = le16_to_cpu(fixed->beacon_interval);
- bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
- timestamp, capability, beacon_interval, ie, ie_len, signal,
- GFP_KERNEL);
+ bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
+ CFG80211_BSS_FTYPE_UNKNOWN, bssid->mac,
+ timestamp, capability, beacon_interval,
+ ie, ie_len, signal, GFP_KERNEL);
cfg80211_put_bss(priv->wdev.wiphy, bss);
return (bss != NULL);
@@ -2711,9 +2712,10 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
bssid, (u32)timestamp, capability, beacon_period, ie_len,
ssid.essid, signal);
- bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
- timestamp, capability, beacon_period, ie_buf, ie_len,
- signal, GFP_KERNEL);
+ bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
+ CFG80211_BSS_FTYPE_UNKNOWN, bssid,
+ timestamp, capability, beacon_period,
+ ie_buf, ie_len, signal, GFP_KERNEL);
cfg80211_put_bss(priv->wdev.wiphy, bss);
}
diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index 723319ee08f3..955ec2e6a95c 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -420,6 +420,7 @@ static int prism2_scan(struct wiphy *wiphy,
IEEE80211_BAND_2GHZ);
bss = cfg80211_inform_bss(wiphy,
ieee80211_get_channel(wiphy, freq),
+ CFG80211_BSS_FTYPE_UNKNOWN,
(const u8 *) &(msg2.bssid.data.data),
msg2.timestamp.data, msg2.capinfo.data,
msg2.beaconperiod.data,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 77b85a89abca..ab21299c8f4d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3767,11 +3767,25 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
}
/**
- * cfg80211_inform_bss - inform cfg80211 of a new BSS
+ * enum cfg80211_bss_frame_type - frame type that the BSS data came from
+ * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
+ * from a beacon or probe response
+ * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
+ * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
+ */
+enum cfg80211_bss_frame_type {
+ CFG80211_BSS_FTYPE_UNKNOWN,
+ CFG80211_BSS_FTYPE_BEACON,
+ CFG80211_BSS_FTYPE_PRESP,
+};
+
+/**
+ * cfg80211_inform_bss_width - inform cfg80211 of a new BSS
*
* @wiphy: the wiphy reporting the BSS
* @rx_channel: The channel the frame was received on
* @scan_width: width of the control channel
+ * @ftype: frame type (if known)
* @bssid: the BSSID of the BSS
* @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
* @capability: the capability field sent by the peer
@@ -3791,6 +3805,7 @@ struct cfg80211_bss * __must_check
cfg80211_inform_bss_width(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
enum nl80211_bss_scan_width scan_width,
+ enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp);
@@ -3798,12 +3813,13 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
static inline struct cfg80211_bss * __must_check
cfg80211_inform_bss(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
+ enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp)
{
return cfg80211_inform_bss_width(wiphy, rx_channel,
- NL80211_BSS_CHAN_WIDTH_20,
+ NL80211_BSS_CHAN_WIDTH_20, ftype,
bssid, tsf, capability,
beacon_interval, ie, ielen, signal,
gfp);
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 9b68ff01cd7a..e42666bbd949 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -884,6 +884,7 @@ struct cfg80211_bss*
cfg80211_inform_bss_width(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
enum nl80211_bss_scan_width scan_width,
+ enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp)
@@ -911,7 +912,7 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
tmp.pub.beacon_interval = beacon_interval;
tmp.pub.capability = capability;
/*
- * Since we do not know here whether the IEs are from a Beacon or Probe
+ * If we do not know here whether the IEs are from a Beacon or Probe
* Response frame, we need to pick one of the options and only use it
* with the driver that does not provide the full Beacon/Probe Response
* frame. Use Beacon frame pointer to avoid indicating that this should
@@ -926,7 +927,17 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
ies->from_beacon = false;
memcpy(ies->data, ie, ielen);
- rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+ switch (ftype) {
+ case CFG80211_BSS_FTYPE_BEACON:
+ ies->from_beacon = true;
+ /* fall through to assign */
+ case CFG80211_BSS_FTYPE_UNKNOWN:
+ rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+ break;
+ case CFG80211_BSS_FTYPE_PRESP:
+ rcu_assign_pointer(tmp.pub.proberesp_ies, ies);
+ break;
+ }
rcu_assign_pointer(tmp.pub.ies, ies);
signal_valid = abs(rx_channel->center_freq - channel->center_freq) <=
--
2.0.0
--
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