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Diffstat (limited to 'net/mac80211/scan.c')
-rw-r--r--net/mac80211/scan.c118
1 files changed, 77 insertions, 41 deletions
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index f40661eb75b5..a0a938145dcc 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;
@@ -973,9 +1003,13 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
struct cfg80211_sched_scan_request *req)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_sched_scan_ies sched_scan_ies = {};
+ struct ieee80211_scan_ies sched_scan_ies = {};
struct cfg80211_chan_def chandef;
- int ret, i, iebufsz;
+ int ret, i, iebufsz, num_bands = 0;
+ u32 rate_masks[IEEE80211_NUM_BANDS] = {};
+ u8 bands_used = 0;
+ u8 *ie;
+ size_t len;
iebufsz = local->scan_ies_len + req->ie_len;
@@ -985,33 +1019,35 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
return -ENOTSUPP;
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
- if (!local->hw.wiphy->bands[i])
- continue;
-
- sched_scan_ies.ie[i] = kzalloc(iebufsz, GFP_KERNEL);
- if (!sched_scan_ies.ie[i]) {
- ret = -ENOMEM;
- goto out_free;
+ if (local->hw.wiphy->bands[i]) {
+ bands_used |= BIT(i);
+ rate_masks[i] = (u32) -1;
+ num_bands++;
}
+ }
- ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
-
- 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);
+ ie = kzalloc(num_bands * iebufsz, GFP_KERNEL);
+ if (!ie) {
+ ret = -ENOMEM;
+ goto out;
}
+ ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
+
+ len = ieee80211_build_preq_ies(local, ie, num_bands * iebufsz,
+ &sched_scan_ies, req->ie,
+ req->ie_len, bands_used,
+ rate_masks, &chandef);
+
ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies);
if (ret == 0) {
rcu_assign_pointer(local->sched_scan_sdata, sdata);
local->sched_scan_req = req;
}
-out_free:
- while (i > 0)
- kfree(sched_scan_ies.ie[--i]);
+ kfree(ie);
+out:
if (ret) {
/* Clean in case of failure after HW restart or upon resume. */
RCU_INIT_POINTER(local->sched_scan_sdata, NULL);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 17:11:50 +0000