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Commit d48055d9 authored by Eliad Peller's avatar Eliad Peller Committed by Luciano Coelho
Browse files

wl12xx: remove TIM ie from probe response 



wl12xx uses the beacon as the probe response template.
However, the beacon includes a TIM ie, which shouldn't
exist in the probe response.

Delete it from the skb before configuring the probe
response template.

Signed-off-by: default avatarEliad Peller <eliad@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
parent 06b660e1

drivers/net/wireless/wl12xx/main.c

+17 −0
Original line number Diff line number Diff line
@@ -3069,6 +3069,20 @@ static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb, 
	return 0;

}



static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)

{

	int len;

	const u8 *next, *end = skb->data + skb->len;

	u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,

					skb->len - ieoffset);

	if (!ie)

		return;

	len = ie[1] + 2;

	next = ie + len;

	memmove(ie, next, end - next);

	skb_trim(skb, skb->len - len);

}



static int wl1271_bss_erp_info_changed(struct wl1271 *wl,

				       struct ieee80211_bss_conf *bss_conf,

				       u32 changed)
@@ -3151,6 +3165,9 @@ static int wl1271_bss_beacon_info_changed(struct wl1271 *wl, 
			goto out;

		}



		/* remove TIM ie from probe response */

		wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);



		hdr = (struct ieee80211_hdr *) beacon->data;

		hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |

						 IEEE80211_STYPE_PROBE_RESP);