From 74415edb042ef9f3b1291f978763687f35aadbb3 Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Tue, 2 Dec 2008 22:50:33 +0100 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2500usb.c | 2 ++ drivers/net/wireless/rt2x00/rt2x00dev.c | 3 ++- drivers/net/wireless/rt2x00/rt2x00queue.h | 4 ++++ drivers/net/wireless/rt2x00/rt61pci.c | 3 +++ drivers/net/wireless/rt2x00/rt73usb.c | 3 +++ 5 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 90bf0b96caa3..30028e2422fc 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1330,6 +1330,8 @@ static void rt2500usb_fill_rxdone(struct queue_entry *entry, 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 7fc1d766062b..6d92542fcf0d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -636,7 +636,8 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, * 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 7889f914b0ef..282937153408 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -146,11 +146,15 @@ static inline struct skb_frame_desc* get_skb_frame_desc(struct sk_buff *skb) * @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 c1ebb658b6c4..987e89009f74 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -1951,7 +1951,10 @@ static void rt61pci_fill_rxdone(struct queue_entry *entry, 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 3c8b235bbdfb..d638a8a59370 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -1620,7 +1620,10 @@ static void rt73usb_fill_rxdone(struct queue_entry *entry, 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 -- 2.20.1