From 9c3444d33e65ade06af82d19522686c1873b953a Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Wed, 3 Dec 2008 17:29:48 +0100 Subject: rt2x00: Move crypto TX descriptor handling to rt2x00crypto.c Move all code which determines the right TX descriptor fields specific to crypto support into rt2x00crypto.c. This makes the code in rt2x00queue more simpler and better concentrates all crypto code into a single location. With this we can also remove some ifdefs in rt2x00queue.c since the code inside the ifdef is either very small, or only calling empty functions (see empty function definitions in rt2x00lib.h). Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00crypto.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/net/wireless/rt2x00/rt2x00crypto.c') diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c index c6709b39216..37ad0d2fb64 100644 --- a/drivers/net/wireless/rt2x00/rt2x00crypto.c +++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c @@ -46,6 +46,29 @@ enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key) } } +void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry, + struct txentry_desc *txdesc) +{ + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct ieee80211_key_conf *hw_key = tx_info->control.hw_key; + + __set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags); + + txdesc->cipher = rt2x00crypto_key_to_cipher(hw_key); + + if (hw_key->flags & IEEE80211_KEY_FLAG_PAIRWISE) + __set_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags); + + txdesc->key_idx = hw_key->hw_key_idx; + txdesc->iv_offset = ieee80211_get_hdrlen_from_skb(entry->skb); + + if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) + __set_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags); + + if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + __set_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags); +} + unsigned int rt2x00crypto_tx_overhead(struct ieee80211_tx_info *tx_info) { struct ieee80211_key_conf *key = tx_info->control.hw_key; -- cgit v1.2.3-70-g09d2