mirror of https://github.com/hak5/openwrt.git
mac80211: update rt2x00 rx_status patch
Also remove the superfluous ones for ath5k, p54. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 34637lede-17.01
Gabor Juhos
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8d9564af1b
commit
a6112c3e8a
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@ -1,12 +1,13 @@
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From 84b435b38a84c9a7e8ba33e8d02d2f967f847ce1 Mon Sep 17 00:00:00 2001
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From e922d683ca8001ce9a6272d6ab12d74e72c36521 Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Tue, 11 Dec 2012 14:15:53 +0100
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Subject: [PATCH 1/3] rt2x00: zero-out rx_status
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Subject: [PATCH v2] rt2x00: zero-out rx_status
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In commit 'mac80211: support radiotap vendor namespace RX data'
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new fields were added to 'struct ieee80211_rx_status'.
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The rt2x00 driver does not initializes those fields and
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this can cause unexpected behaviour.
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new fields were added to 'struct ieee80211_rx_status' and those
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fileds must be zeroed. However the rt2x00 driver stores driver
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specific data in the cb array of the rx skbs, so the fields
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might contain garbage and this can cause unexpected behaviour.
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The rt2x00 driver from the compat-wireless-2012-12-01
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tarball caused the following warning:
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@ -38,15 +39,25 @@ zeroes.
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Cc: <users@rt2x00.serialmonkey.com>
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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---
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drivers/net/wireless/rt2x00/rt2x00dev.c | 2 ++
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1 file changed, 2 insertions(+)
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v2:
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- update the commit message and add a comment to the code
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- drop the ath5k and p54 patches
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---
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drivers/net/wireless/rt2x00/rt2x00dev.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
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+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
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@@ -685,6 +685,8 @@ void rt2x00lib_rxdone(struct queue_entry
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@@ -685,6 +685,14 @@ void rt2x00lib_rxdone(struct queue_entry
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* to mac80211.
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*/
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rx_status = IEEE80211_SKB_RXCB(entry->skb);
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+
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+ /* Ensure that all fields of rx_status are initialized
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+ * properly. The skb->cb array was used for driver
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+ * specific informations, so rx_status might contain
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+ * garbage.
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+ */
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+ memset(rx_status, 0, sizeof(*rx_status));
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+
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rx_status->mactime = rxdesc.timestamp;
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@ -1,31 +0,0 @@
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From 4c0faf816beeb5d4175cff09c96e668a49ad032f Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Tue, 11 Dec 2012 14:16:15 +0100
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Subject: [PATCH 2/3] ath5k: zero-out rx_status
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In commit 'mac80211: support radiotap vendor namespace RX data'
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new fields were added to 'struct ieee80211_rx_status'.
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The ath5k driver does not initializes those fields and
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this can cause unexpected behaviour. The patch ensures
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that each field gets initialized with zeroes.
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Cc: <ath5k-devel@lists.ath5k.org>
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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---
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Compile tested only.
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---
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drivers/net/wireless/ath/ath5k/base.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/wireless/ath/ath5k/base.c
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+++ b/drivers/net/wireless/ath/ath5k/base.c
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@@ -1325,8 +1325,8 @@ ath5k_receive_frame(struct ath5k_hw *ah,
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ath5k_remove_padding(skb);
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rxs = IEEE80211_SKB_RXCB(skb);
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+ memset(rxs, 0, sizeof(*rxs));
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- rxs->flag = 0;
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if (unlikely(rs->rs_status & AR5K_RXERR_MIC))
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rxs->flag |= RX_FLAG_MMIC_ERROR;
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@ -1,30 +0,0 @@
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From 6e73611e574ea3c8fe5afc67ee29d2c5ff777f4b Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Tue, 11 Dec 2012 14:16:29 +0100
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Subject: [PATCH 3/3] p54: zero-out rx_status
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In commit 'mac80211: support radiotap vendor namespace RX data'
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new fields were added to 'struct ieee80211_rx_status'.
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The ath5k driver does not initializes those fields and
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this can cause unexpected behaviour. The patch ensures
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that each field gets initialized with zeroes.
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Cc: Christian Lamparter <chunkeey@googlemail.com>
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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---
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Compile tested only.
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---
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drivers/net/wireless/p54/txrx.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/net/wireless/p54/txrx.c
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+++ b/drivers/net/wireless/p54/txrx.c
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@@ -345,6 +345,8 @@ static int p54_rx_data(struct p54_common
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if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD)))
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return 0;
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+ memset(rx_status, 0, sizeof(*rx_status));
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+
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if (hdr->decrypt_status == P54_DECRYPT_OK)
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rx_status->flag |= RX_FLAG_DECRYPTED;
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if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) ||
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