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Commit 290eddc4 authored by John W. Linville's avatar John W. Linville
Browse files
parents 8f7b8db6 3a40414f
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+1 −0
Original line number Original line Diff line number Diff line
@@ -1218,6 +1218,7 @@ struct cfg80211_deauth_request {
	const u8 *ie;
	const u8 *ie;
	size_t ie_len;
	size_t ie_len;
	u16 reason_code;
	u16 reason_code;
	bool local_state_change;
};
};


/**
/**
+23 −12
Original line number Original line Diff line number Diff line
@@ -3099,24 +3099,34 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
				   ht_cfreq, ht_oper->primary_chan,
				   ht_cfreq, ht_oper->primary_chan,
				   cbss->channel->band);
				   cbss->channel->band);
			ht_oper = NULL;
			ht_oper = NULL;
		} else {
			channel_type = NL80211_CHAN_HT20;
		}
		}
	}
	}


	if (ht_oper) {
	if (ht_oper && sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
		channel_type = NL80211_CHAN_HT20;
		/*
		 * cfg80211 already verified that the channel itself can
		 * be used, but it didn't check that we can do the right
		 * HT type, so do that here as well. If HT40 isn't allowed
		 * on this channel, disable 40 MHz operation.
		 */


		if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
		switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
			switch (ht_oper->ht_param &
					IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
			if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
				ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ;
			else
				channel_type = NL80211_CHAN_HT40PLUS;
				channel_type = NL80211_CHAN_HT40PLUS;
			break;
			break;
		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
			if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
				ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ;
			else
				channel_type = NL80211_CHAN_HT40MINUS;
				channel_type = NL80211_CHAN_HT40MINUS;
			break;
			break;
		}
		}
	}
	}
	}


	if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
	if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
		/* can only fail due to HT40+/- mismatch */
		/* can only fail due to HT40+/- mismatch */
@@ -3549,6 +3559,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
{
{
	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
	bool tx = !req->local_state_change;


	mutex_lock(&ifmgd->mtx);
	mutex_lock(&ifmgd->mtx);


@@ -3565,12 +3576,12 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
	if (ifmgd->associated &&
	if (ifmgd->associated &&
	    ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
	    ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
				       req->reason_code, true, frame_buf);
				       req->reason_code, tx, frame_buf);
	} else {
	} else {
		drv_mgd_prepare_tx(sdata->local, sdata);
		drv_mgd_prepare_tx(sdata->local, sdata);
		ieee80211_send_deauth_disassoc(sdata, req->bssid,
		ieee80211_send_deauth_disassoc(sdata, req->bssid,
					       IEEE80211_STYPE_DEAUTH,
					       IEEE80211_STYPE_DEAUTH,
					       req->reason_code, true,
					       req->reason_code, tx,
					       frame_buf);
					       frame_buf);
	}
	}


+8 −3
Original line number Original line Diff line number Diff line
@@ -546,14 +546,19 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)


static void bip_aad(struct sk_buff *skb, u8 *aad)
static void bip_aad(struct sk_buff *skb, u8 *aad)
{
{
	__le16 mask_fc;
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;

	/* BIP AAD: FC(masked) || A1 || A2 || A3 */
	/* BIP AAD: FC(masked) || A1 || A2 || A3 */


	/* FC type/subtype */
	/* FC type/subtype */
	aad[0] = skb->data[0];
	/* Mask FC Retry, PwrMgt, MoreData flags to zero */
	/* Mask FC Retry, PwrMgt, MoreData flags to zero */
	aad[1] = skb->data[1] & ~(BIT(4) | BIT(5) | BIT(6));
	mask_fc = hdr->frame_control;
	mask_fc &= ~cpu_to_le16(IEEE80211_FCTL_RETRY | IEEE80211_FCTL_PM |
				IEEE80211_FCTL_MOREDATA);
	put_unaligned(mask_fc, (__le16 *) &aad[0]);
	/* A1 || A2 || A3 */
	/* A1 || A2 || A3 */
	memcpy(aad + 2, skb->data + 4, 3 * ETH_ALEN);
	memcpy(aad + 2, &hdr->addr1, 3 * ETH_ALEN);
}
}




+3 −9
Original line number Original line Diff line number Diff line
@@ -457,20 +457,14 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
		.reason_code = reason,
		.reason_code = reason,
		.ie = ie,
		.ie = ie,
		.ie_len = ie_len,
		.ie_len = ie_len,
		.local_state_change = local_state_change,
	};
	};


	ASSERT_WDEV_LOCK(wdev);
	ASSERT_WDEV_LOCK(wdev);


	if (local_state_change) {
	if (local_state_change && (!wdev->current_bss ||
		if (wdev->current_bss &&
	    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
		    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
			cfg80211_unhold_bss(wdev->current_bss);
			cfg80211_put_bss(&wdev->current_bss->pub);
			wdev->current_bss = NULL;
		}

		return 0;
		return 0;
	}


	return rdev->ops->deauth(&rdev->wiphy, dev, &req);
	return rdev->ops->deauth(&rdev->wiphy, dev, &req);
}
}