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-rw-r--r--drivers/net/wireless/at76c50x-usb.c3
-rw-r--r--drivers/net/wireless/ath/ath10k/mac.c3
-rw-r--r--drivers/net/wireless/cw1200/scan.c3
-rw-r--r--drivers/net/wireless/cw1200/scan.h2
-rw-r--r--drivers/net/wireless/iwlegacy/common.c3
-rw-r--r--drivers/net/wireless/iwlegacy/common.h2
-rw-r--r--drivers/net/wireless/iwlwifi/dvm/mac80211.c3
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mac80211.c3
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c3
-rw-r--r--drivers/net/wireless/ti/wl1251/main.c3
-rw-r--r--drivers/net/wireless/ti/wlcore/main.c3
-rw-r--r--include/net/mac80211.h39
-rw-r--r--net/mac80211/driver-ops.h2
-rw-r--r--net/mac80211/ieee80211_i.h9
-rw-r--r--net/mac80211/scan.c85
-rw-r--r--net/mac80211/util.c105
16 files changed, 198 insertions, 73 deletions
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index d48776e..334c2ec 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -1955,8 +1955,9 @@ static void at76_dwork_hw_scan(struct work_struct *work)
static int at76_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
+ struct cfg80211_scan_request *req = &hw_req->req;
struct at76_priv *priv = hw->priv;
struct at76_req_scan scan;
u8 *ssid = NULL;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index a210800..b8314a5 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3137,10 +3137,11 @@ exit:
static int ath10k_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
struct ath10k *ar = hw->priv;
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+ struct cfg80211_scan_request *req = &hw_req->req;
struct wmi_start_scan_arg arg;
int ret = 0;
int i;
diff --git a/drivers/net/wireless/cw1200/scan.c b/drivers/net/wireless/cw1200/scan.c
index 9afcd4c..b2fb6c6 100644
--- a/drivers/net/wireless/cw1200/scan.c
+++ b/drivers/net/wireless/cw1200/scan.c
@@ -53,9 +53,10 @@ static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
int cw1200_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
struct cw1200_common *priv = hw->priv;
+ struct cfg80211_scan_request *req = &hw_req->req;
struct wsm_template_frame frame = {
.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
};
diff --git a/drivers/net/wireless/cw1200/scan.h b/drivers/net/wireless/cw1200/scan.h
index 5a8296c..cc75459 100644
--- a/drivers/net/wireless/cw1200/scan.h
+++ b/drivers/net/wireless/cw1200/scan.h
@@ -41,7 +41,7 @@ struct cw1200_scan {
int cw1200_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req);
+ struct ieee80211_scan_request *hw_req);
void cw1200_scan_work(struct work_struct *work);
void cw1200_scan_timeout(struct work_struct *work);
void cw1200_clear_recent_scan_work(struct work_struct *work);
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index ecc6746..03de746 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -1572,8 +1572,9 @@ il_scan_initiate(struct il_priv *il, struct ieee80211_vif *vif)
int
il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
+ struct cfg80211_scan_request *req = &hw_req->req;
struct il_priv *il = hw->priv;
int ret;
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index ea5c0f8..5b97279 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -1787,7 +1787,7 @@ int il_scan_cancel(struct il_priv *il);
int il_scan_cancel_timeout(struct il_priv *il, unsigned long ms);
void il_force_scan_end(struct il_priv *il);
int il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req);
+ struct ieee80211_scan_request *hw_req);
void il_internal_short_hw_scan(struct il_priv *il);
int il_force_reset(struct il_priv *il, bool external);
u16 il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index 29af7b5..afb98f4 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1495,9 +1495,10 @@ static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
+ struct cfg80211_scan_request *req = &hw_req->req;
int ret;
IWL_DEBUG_MAC80211(priv, "enter\n");
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 7215f59..4dc2e05 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1537,9 +1537,10 @@ static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+ struct cfg80211_scan_request *req = &hw_req->req;
int ret;
if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 06a0722..eba5146 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1736,9 +1736,10 @@ static void hw_scan_work(struct work_struct *work)
static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
struct mac80211_hwsim_data *hwsim = hw->priv;
+ struct cfg80211_scan_request *req = &hw_req->req;
mutex_lock(&hwsim->mutex);
if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 4e782f1..3823485 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -991,8 +991,9 @@ out:
static int wl1251_op_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
+ struct cfg80211_scan_request *req = &hw_req->req;
struct wl1251 *wl = hw->priv;
struct sk_buff *skb;
size_t ssid_len = 0;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3d6028e..e5ffb8b 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -3540,8 +3540,9 @@ out:
static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *hw_req)
{
+ struct cfg80211_scan_request *req = &hw_req->req;
struct wl1271 *wl = hw->priv;
int ret;
u8 *ssid = NULL;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 18c2bdb..9536ee3 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -768,6 +768,26 @@ struct ieee80211_sched_scan_ies {
size_t len[IEEE80211_NUM_BANDS];
};
+/**
+ * struct ieee80211_scan_ies - descriptors for different blocks of IEs
+ *
+ * This structure is used to point to different blocks of IEs in HW scan.
+ * These blocks contain the IEs passed by userspace and the ones generated
+ * by mac80211.
+ *
+ * @ies: pointers to band specific IEs.
+ * @len: lengths of band_specific IEs.
+ * @common_ies: IEs for all bands (especially vendor specific ones)
+ * @common_ie_len: length of the common_ies
+ */
+struct ieee80211_scan_ies {
+ const u8 *ies[IEEE80211_NUM_BANDS];
+ size_t len[IEEE80211_NUM_BANDS];
+ const u8 *common_ies;
+ size_t common_ie_len;
+};
+
+
static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
{
return (struct ieee80211_tx_info *)skb->cb;
@@ -1606,6 +1626,9 @@ struct ieee80211_tx_control {
* on single-channel hardware. It can also be used as an
* optimization in certain channel switch cases with
* multi-channel.
+ *
+ * @IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS: The HW supports scanning on all bands
+ * in one command, mac80211 doesn't have to run separate scans per band.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1638,6 +1661,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27,
IEEE80211_HW_CHANCTX_STA_CSA = 1<<28,
IEEE80211_HW_CHANGE_RUNNING_CHANCTX = 1<<29,
+ IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS = 1<<30,
};
/**
@@ -1764,6 +1788,19 @@ struct ieee80211_hw {
};
/**
+ * struct ieee80211_scan_request - hw scan request
+ *
+ * @ies: pointers different parts of IEs (in req.ie)
+ * @req: cfg80211 request.
+ */
+struct ieee80211_scan_request {
+ struct ieee80211_scan_ies ies;
+
+ /* Keep last */
+ struct cfg80211_scan_request req;
+};
+
+/**
* wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
*
* @wiphy: the &struct wiphy which we want to query
@@ -2874,7 +2911,7 @@ struct ieee80211_ops {
void (*set_default_unicast_key)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, int idx);
int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req);
+ struct ieee80211_scan_request *req);
void (*cancel_hw_scan)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int (*sched_scan_start)(struct ieee80211_hw *hw,
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 2265bd7..faa0d90 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -314,7 +314,7 @@ static inline void drv_update_tkip_key(struct ieee80211_local *local,
static inline int drv_hw_scan(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
- struct cfg80211_scan_request *req)
+ struct ieee80211_scan_request *req)
{
int ret;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6c80894..f88bd16 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1152,7 +1152,8 @@ struct ieee80211_local {
unsigned long scanning;
struct cfg80211_ssid scan_ssid;
struct cfg80211_scan_request *int_scan_req;
- struct cfg80211_scan_request *scan_req, *hw_scan_req;
+ struct cfg80211_scan_request *scan_req;
+ struct ieee80211_scan_request *hw_scan_req;
struct cfg80211_chan_def scan_chandef;
enum ieee80211_band hw_scan_band;
int scan_channel_idx;
@@ -1756,8 +1757,10 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype, u16 reason,
bool send_frame, u8 *frame_buf);
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
- size_t buffer_len, const u8 *ie, size_t ie_len,
- enum ieee80211_band band, u32 rate_mask,
+ size_t buffer_len,
+ struct ieee80211_scan_ies *ie_desc,
+ const u8 *ie, size_t ie_len,
+ u8 bands_used, u32 *rate_masks,
struct cfg80211_chan_def *chandef);
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
u8 *dst, u32 ratemask,
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index f40661e..116959e 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -235,38 +235,51 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
{
struct cfg80211_scan_request *req = local->scan_req;
struct cfg80211_chan_def chandef;
- enum ieee80211_band band;
+ u8 bands_used = 0;
int i, ielen, n_chans;
if (test_bit(SCAN_HW_CANCELLED, &local->scanning))
return false;
- do {
- if (local->hw_scan_band == IEEE80211_NUM_BANDS)
- return false;
-
- band = local->hw_scan_band;
- n_chans = 0;
+ if (local->hw.flags & IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS) {
for (i = 0; i < req->n_channels; i++) {
- if (req->channels[i]->band == band) {
- local->hw_scan_req->channels[n_chans] =
+ local->hw_scan_req->req.channels[i] = req->channels[i];
+ bands_used |= BIT(req->channels[i]->band);
+ }
+
+ n_chans = req->n_channels;
+ } else {
+ do {
+ if (local->hw_scan_band == IEEE80211_NUM_BANDS)
+ return false;
+
+ n_chans = 0;
+
+ for (i = 0; i < req->n_channels; i++) {
+ if (req->channels[i]->band !=
+ local->hw_scan_band)
+ continue;
+ local->hw_scan_req->req.channels[n_chans] =
req->channels[i];
n_chans++;
+ bands_used |= BIT(req->channels[i]->band);
}
- }
- local->hw_scan_band++;
- } while (!n_chans);
+ local->hw_scan_band++;
+ } while (!n_chans);
+ }
- local->hw_scan_req->n_channels = n_chans;
+ local->hw_scan_req->req.n_channels = n_chans;
ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
- ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
+ ielen = ieee80211_build_preq_ies(local,
+ (u8 *)local->hw_scan_req->req.ie,
local->hw_scan_ies_bufsize,
- req->ie, req->ie_len, band,
- req->rates[band], &chandef);
- local->hw_scan_req->ie_len = ielen;
- local->hw_scan_req->no_cck = req->no_cck;
+ &local->hw_scan_req->ies,
+ req->ie, req->ie_len,
+ bands_used, req->rates, &chandef);
+ local->hw_scan_req->req.ie_len = ielen;
+ local->hw_scan_req->req.no_cck = req->no_cck;
return true;
}
@@ -291,7 +304,9 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
if (WARN_ON(!local->scan_req))
return;
- if (hw_scan && !aborted && ieee80211_prep_hw_scan(local)) {
+ if (hw_scan && !aborted &&
+ !(local->hw.flags & IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS) &&
+ ieee80211_prep_hw_scan(local)) {
int rc;
rc = drv_hw_scan(local,
@@ -473,6 +488,21 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
u8 *ies;
local->hw_scan_ies_bufsize = local->scan_ies_len + req->ie_len;
+
+ if (local->hw.flags & IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS) {
+ int i, n_bands = 0;
+ u8 bands_counted = 0;
+
+ for (i = 0; i < req->n_channels; i++) {
+ if (bands_counted & BIT(req->channels[i]->band))
+ continue;
+ bands_counted |= BIT(req->channels[i]->band);
+ n_bands++;
+ }
+
+ local->hw_scan_ies_bufsize *= n_bands;
+ }
+
local->hw_scan_req = kmalloc(
sizeof(*local->hw_scan_req) +
req->n_channels * sizeof(req->channels[0]) +
@@ -480,13 +510,13 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
if (!local->hw_scan_req)
return -ENOMEM;
- local->hw_scan_req->ssids = req->ssids;
- local->hw_scan_req->n_ssids = req->n_ssids;
+ local->hw_scan_req->req.ssids = req->ssids;
+ local->hw_scan_req->req.n_ssids = req->n_ssids;
ies = (u8 *)local->hw_scan_req +
sizeof(*local->hw_scan_req) +
req->n_channels * sizeof(req->channels[0]);
- local->hw_scan_req->ie = ies;
- local->hw_scan_req->flags = req->flags;
+ local->hw_scan_req->req.ie = ies;
+ local->hw_scan_req->req.flags = req->flags;
local->hw_scan_band = 0;
@@ -976,6 +1006,7 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sched_scan_ies sched_scan_ies = {};
struct cfg80211_chan_def chandef;
int ret, i, iebufsz;
+ struct ieee80211_scan_ies dummy_ie_desc;
iebufsz = local->scan_ies_len + req->ie_len;
@@ -985,6 +1016,8 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
return -ENOTSUPP;
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
+ u32 rate_masks[IEEE80211_NUM_BANDS] = {};
+
if (!local->hw.wiphy->bands[i])
continue;
@@ -995,11 +1028,13 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
}
ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
+ rate_masks[i] = (u32) -1;
sched_scan_ies.len[i] =
ieee80211_build_preq_ies(local, sched_scan_ies.ie[i],
- iebufsz, req->ie, req->ie_len,
- i, (u32) -1, &chandef);
+ iebufsz, &dummy_ie_desc,
+ req->ie, req->ie_len, BIT(i),
+ rate_masks, &chandef);
}
ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 42d448d..e314582 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1219,14 +1219,17 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
}
}
-int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
- size_t buffer_len, const u8 *ie, size_t ie_len,
- enum ieee80211_band band, u32 rate_mask,
- struct cfg80211_chan_def *chandef)
+static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
+ u8 *buffer, size_t buffer_len,
+ const u8 *ie, size_t ie_len,
+ enum ieee80211_band band,
+ u32 rate_mask,
+ struct cfg80211_chan_def *chandef,
+ size_t *offset)
{
struct ieee80211_supported_band *sband;
u8 *pos = buffer, *end = buffer + buffer_len;
- size_t offset = 0, noffset;
+ size_t noffset;
int supp_rates_len, i;
u8 rates[32];
int num_rates;
@@ -1234,6 +1237,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
int shift;
u32 rate_flags;
+ *offset = 0;
+
sband = local->hw.wiphy->bands[band];
if (WARN_ON_ONCE(!sband))
return 0;
@@ -1272,12 +1277,12 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
noffset = ieee80211_ie_split(ie, ie_len,
before_extrates,
ARRAY_SIZE(before_extrates),
- offset);
- if (end - pos < noffset - offset)
+ *offset);
+ if (end - pos < noffset - *offset)
goto out_err;
- memcpy(pos, ie + offset, noffset - offset);
- pos += noffset - offset;
- offset = noffset;
+ memcpy(pos, ie + *offset, noffset - *offset);
+ pos += noffset - *offset;
+ *offset = noffset;
}
ext_rates_len = num_rates - supp_rates_len;
@@ -1311,12 +1316,12 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
};
noffset = ieee80211_ie_split(ie, ie_len,
before_ht, ARRAY_SIZE(before_ht),
- offset);
- if (end - pos < noffset - offset)
+ *offset);
+ if (end - pos < noffset - *offset)
goto out_err;
- memcpy(pos, ie + offset, noffset - offset);
- pos += noffset - offset;
- offset = noffset;
+ memcpy(pos, ie + *offset, noffset - *offset);
+ pos += noffset - *offset;
+ *offset = noffset;
}
if (sband->ht_cap.ht_supported) {
@@ -1351,12 +1356,12 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
};
noffset = ieee80211_ie_split(ie, ie_len,
before_vht, ARRAY_SIZE(before_vht),
- offset);
- if (end - pos < noffset - offset)
+ *offset);
+ if (end - pos < noffset - *offset)
goto out_err;
- memcpy(pos, ie + offset, noffset - offset);
- pos += noffset - offset;
- offset = noffset;
+ memcpy(pos, ie + *offset, noffset - *offset);
+ pos += noffset - *offset;
+ *offset = noffset;
}
if (sband->vht_cap.vht_supported) {
@@ -1366,21 +1371,54 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
sband->vht_cap.cap);
}
- /* add any remaining custom IEs */
- if (ie && ie_len) {
- noffset = ie_len;
- if (end - pos < noffset - offset)
- goto out_err;
- memcpy(pos, ie + offset, noffset - offset);
- pos += noffset - offset;
- }
-
return pos - buffer;
out_err:
WARN_ONCE(1, "not enough space for preq IEs\n");
return pos - buffer;
}
+int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
+ size_t buffer_len,
+ struct ieee80211_scan_ies *ie_desc,
+ const u8 *ie, size_t ie_len,
+ u8 bands_used, u32 *rate_masks,
+ struct cfg80211_chan_def *chandef)
+{
+ size_t pos = 0, old_pos = 0, custom_ie_offset = 0;
+ int i;
+
+ memset(ie_desc, 0, sizeof(*ie_desc));
+
+ for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
+ if (bands_used & BIT(i)) {
+ pos += ieee80211_build_preq_ies_band(local,
+ buffer + pos,
+ buffer_len - pos,
+ ie, ie_len, i,
+ rate_masks[i],
+ chandef,
+ &custom_ie_offset);
+ ie_desc->ies[i] = buffer + old_pos;
+ ie_desc->len[i] = pos - old_pos;
+ old_pos = pos;
+ }
+ }
+
+ /* add any remaining custom IEs */
+ if (ie && ie_len) {
+ if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset,
+ "not enough space for preq custom IEs\n"))
+ return pos;
+ memcpy(buffer + pos, ie + custom_ie_offset,
+ ie_len - custom_ie_offset);
+ ie_desc->common_ies = buffer + pos;
+ ie_desc->common_ie_len = ie_len - custom_ie_offset;
+ pos += ie_len - custom_ie_offset;
+ }
+
+ return pos;
+};
+
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
u8 *dst, u32 ratemask,
struct ieee80211_channel *chan,
@@ -1393,6 +1431,8 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
int ies_len;
+ u32 rate_masks[IEEE80211_NUM_BANDS] = {};
+ struct ieee80211_scan_ies dummy_ie_desc;
/*
* Do not send DS Channel parameter for directed probe requests
@@ -1410,10 +1450,11 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
if (!skb)
return NULL;
+ rate_masks[chan->band] = ratemask;
ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb),
- skb_tailroom(skb),
- ie, ie_len, chan->band,
- ratemask, &chandef);
+ skb_tailroom(skb), &dummy_ie_desc,
+ ie, ie_len, BIT(chan->band),
+ rate_masks, &chandef);
skb_put(skb, ies_len);
if (dst) {
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