From 8ee3108075c9e9e2701493a245a754b8b0db8e57 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 22 Jun 2011 16:43:48 +0200 Subject: [PATCH] mac80211: restrict advertised HW scan rates Advertise only user-requested bitrates in a HW scan. Note that the hw_scan API doesn't currently have a way of asking for a specific probe request bitrate, so we might end up using a bitrate that we don't advertise as supported. I'll fix that later. Also add a hexdump printk to hwsim to verify this. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/mac80211_hwsim.c | 2 ++ net/mac80211/scan.c | 5 +++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 7e1fa9671277..031cd89b1768 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1130,6 +1130,8 @@ static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw, for (i = 0; i < req->n_channels; i++) printk(KERN_DEBUG "hwsim hw_scan freq %d\n", req->channels[i]->center_freq); + print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET, + 16, 1, req->ie, req->ie_len, 1); ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 1758b463c583..6403722da603 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -228,6 +228,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) { struct cfg80211_scan_request *req = local->scan_req; + struct ieee80211_sub_if_data *sdata = local->scan_sdata; enum ieee80211_band band; int i, ielen, n_chans; @@ -251,8 +252,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) local->hw_scan_req->n_channels = n_chans; ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie, - req->ie, req->ie_len, band, (u32) -1, - 0); + req->ie, req->ie_len, band, + sdata->rc_rateidx_mask[band], 0); local->hw_scan_req->ie_len = ielen; return true; -- 2.20.1