rt2x00: Add RXDONE_CRYPTO_IV/ICV flags
Drivers should notify rt2x00lib when they provide
the IV/ICV data. This adds some flexibility to drivers
which can't provide all information.
* rt2500usb provides ICV inside the frame
* rt2800pci doesn't provide IV/ICV
* rt2800usb doesn't provide IV/ICV
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 90bf0b9..30028e2 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1330,6 +1330,8 @@
if (rxdesc->cipher != CIPHER_NONE) {
_rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
_rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
+ rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
+
/* ICV is located at the end of frame */
/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 7fc1d76..6d92542 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -636,7 +636,8 @@
* provided seperately (through hardware descriptor)
* in which case we should reinsert the data into the frame.
*/
- if ((rxdesc.flags & RX_FLAG_IV_STRIPPED)) {
+ if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) &&
+ (rxdesc.flags & RX_FLAG_IV_STRIPPED)) {
rt2x00crypto_rx_insert_iv(entry->skb, align,
header_length, &rxdesc);
} else if (align) {
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 7889f91..2829371 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -146,11 +146,15 @@
* @RXDONE_SIGNAL_PLCP: Signal field contains the plcp value.
* @RXDONE_SIGNAL_BITRATE: Signal field contains the bitrate value.
* @RXDONE_MY_BSS: Does this frame originate from device's BSS.
+ * @RXDONE_CRYPTO_IV: Driver provided IV/EIV data.
+ * @RXDONE_CRYPTO_ICV: Driver provided ICV data.
*/
enum rxdone_entry_desc_flags {
RXDONE_SIGNAL_PLCP = 1 << 0,
RXDONE_SIGNAL_BITRATE = 1 << 1,
RXDONE_MY_BSS = 1 << 2,
+ RXDONE_CRYPTO_IV = 1 << 3,
+ RXDONE_CRYPTO_ICV = 1 << 4,
};
/**
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index c1ebb65..987e890 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1951,7 +1951,10 @@
if (rxdesc->cipher != CIPHER_NONE) {
_rt2x00_desc_read(entry_priv->desc, 2, &rxdesc->iv[0]);
_rt2x00_desc_read(entry_priv->desc, 3, &rxdesc->iv[1]);
+ rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
+
_rt2x00_desc_read(entry_priv->desc, 4, &rxdesc->icv);
+ rxdesc->dev_flags |= RXDONE_CRYPTO_ICV;
/*
* Hardware has stripped IV/EIV data from 802.11 frame during
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 3c8b235..d638a8a 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1620,7 +1620,10 @@
if (rxdesc->cipher != CIPHER_NONE) {
_rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
_rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
+ rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
+
_rt2x00_desc_read(rxd, 4, &rxdesc->icv);
+ rxdesc->dev_flags |= RXDONE_CRYPTO_ICV;
/*
* Hardware has stripped IV/EIV data from 802.11 frame during