diff options
| author | gregor kowski <gregor.kowski@gmail.com> | 2009-08-19 22:35:45 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-08-20 11:36:08 -0400 |
| commit | 035d0243ebbdbd5f8f07d6ce378c9a9b36415bc9 (patch) | |
| tree | be26939b0411ed337c583927e2f8866113e12f5d /drivers/net/wireless/b43/xmit.c | |
| parent | 11ba964d4f936609a04e8b9f2051f6027ef761ae (diff) | |
b43: add hardware tkip
This add hardware tkip for b43.
Signed-off-by: Gregor Kowski <gregor.kowski@gmail.com>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
| -rw-r--r-- | drivers/net/wireless/b43/xmit.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index be1c53ecdb0..e7075d2c775 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -180,11 +180,12 @@ static u8 b43_calc_fallback_rate(u8 bitrate) /* Generate a TX data header. */ int b43_generate_txhdr(struct b43_wldev *dev, u8 *_txhdr, - const unsigned char *fragment_data, - unsigned int fragment_len, + struct sk_buff *skb_frag, struct ieee80211_tx_info *info, u16 cookie) { + const unsigned char *fragment_data = skb_frag->data; + unsigned int fragment_len = skb_frag->len; struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; const struct b43_phy *phy = &dev->phy; const struct ieee80211_hdr *wlhdr = @@ -258,9 +259,26 @@ int b43_generate_txhdr(struct b43_wldev *dev, mac_ctl |= (key->algorithm << B43_TXH_MAC_KEYALG_SHIFT) & B43_TXH_MAC_KEYALG; wlhdr_len = ieee80211_hdrlen(fctl); - iv_len = min((size_t) info->control.hw_key->iv_len, - ARRAY_SIZE(txhdr->iv)); - memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len); + if (key->algorithm == B43_SEC_ALGO_TKIP) { + u16 phase1key[5]; + int i; + /* we give the phase1key and iv16 here, the key is stored in + * shm. With that the hardware can do phase 2 and encryption. + */ + ieee80211_get_tkip_key(info->control.hw_key, skb_frag, + IEEE80211_TKIP_P1_KEY, (u8*)phase1key); + /* phase1key is in host endian */ + for (i = 0; i < 5; i++) + phase1key[i] = cpu_to_le16(phase1key[i]); + + memcpy(txhdr->iv, phase1key, 10); + /* iv16 */ + memcpy(txhdr->iv + 10, ((u8 *) wlhdr) + wlhdr_len, 3); + } else { + iv_len = min((size_t) info->control.hw_key->iv_len, + ARRAY_SIZE(txhdr->iv)); + memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len); + } } if (b43_is_old_txhdr_format(dev)) { b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->old_format.plcp), |