diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 60 |
1 files changed, 50 insertions, 10 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 82354b974a04..34561e6e816b 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -138,6 +138,7 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) u8 *fw_version = NULL; size_t len; int i; + int maxlen; if (priv->rx_start) return 0; @@ -195,6 +196,16 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) else priv->rx_mtu = (size_t) 0x620 - priv->tx_hdr_len; + maxlen = priv->tx_hdr_len + /* USB devices */ + sizeof(struct p54_rx_data) + + 4 + /* rx alignment */ + IEEE80211_MAX_FRAG_THRESHOLD; + if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) { + printk(KERN_INFO "p54: rx_mtu reduced from %d " + "to %d\n", priv->rx_mtu, + maxlen); + priv->rx_mtu = maxlen; + } break; } case BR_CODE_EXPOSED_IF: @@ -440,8 +451,8 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) } if (err) goto err; - - } + } + break; case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: priv->iq_autocal = kmalloc(data_len, GFP_KERNEL); if (!priv->iq_autocal) { @@ -575,6 +586,7 @@ static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) u16 freq = le16_to_cpu(hdr->freq); size_t header_len = sizeof(*hdr); u32 tsf32; + u8 rate = hdr->rate & 0xf; /* * If the device is in a unspecified state we have to @@ -603,8 +615,11 @@ static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) rx_status.qual = (100 * hdr->rssi) / 127; if (hdr->rate & 0x10) rx_status.flag |= RX_FLAG_SHORTPRE; - rx_status.rate_idx = (dev->conf.channel->band == IEEE80211_BAND_2GHZ ? - hdr->rate : (hdr->rate - 4)) & 0xf; + if (dev->conf.channel->band == IEEE80211_BAND_5GHZ) + rx_status.rate_idx = (rate < 4) ? 0 : rate - 4; + else + rx_status.rate_idx = rate; + rx_status.freq = freq; rx_status.band = dev->conf.channel->band; rx_status.antenna = hdr->antenna; @@ -730,7 +745,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); struct p54_hdr *entry_hdr; struct p54_tx_data *entry_data; - int pad = 0; + unsigned int pad = 0, frame_len; range = (void *)info->rate_driver_data; if (range->start_addr != addr) { @@ -753,6 +768,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) __skb_unlink(entry, &priv->tx_queue); spin_unlock_irqrestore(&priv->tx_queue.lock, flags); + frame_len = entry->len; entry_hdr = (struct p54_hdr *) entry->data; entry_data = (struct p54_tx_data *) entry_hdr->data; priv->tx_stats[entry_data->hw_queue].len--; @@ -798,6 +814,29 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) info->flags |= IEEE80211_TX_STAT_TX_FILTERED; info->status.ack_signal = p54_rssi_to_dbm(dev, (int)payload->ack_rssi); + + /* Undo all changes to the frame. */ + switch (entry_data->key_type) { + case P54_CRYPTO_TKIPMICHAEL: { + u8 *iv = (u8 *)(entry_data->align + pad + + entry_data->crypt_offset); + + /* Restore the original TKIP IV. */ + iv[2] = iv[0]; + iv[0] = iv[1]; + iv[1] = (iv[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */ + + frame_len -= 12; /* remove TKIP_MMIC + TKIP_ICV */ + break; + } + case P54_CRYPTO_AESCCMP: + frame_len -= 8; /* remove CCMP_MIC */ + break; + case P54_CRYPTO_WEP: + frame_len -= 4; /* remove WEP_ICV */ + break; + } + skb_trim(entry, frame_len); skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); ieee80211_tx_status_irqsafe(dev, entry); goto out; @@ -1122,7 +1161,7 @@ static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta, skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(struct p54_hdr) + sizeof(*tim), - P54_CONTROL_TYPE_TIM, GFP_KERNEL); + P54_CONTROL_TYPE_TIM, GFP_ATOMIC); if (!skb) return -ENOMEM; @@ -1383,7 +1422,6 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->tries = ridx; txhdr->rts_rate_idx = 0; if (info->control.hw_key) { - crypt_offset += info->control.hw_key->iv_len; txhdr->key_type = p54_convert_algo(info->control.hw_key->alg); txhdr->key_len = min((u8)16, info->control.hw_key->keylen); memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len); @@ -1397,6 +1435,8 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) } /* reserve some space for ICV */ len += info->control.hw_key->icv_len; + memset(skb_put(skb, info->control.hw_key->icv_len), 0, + info->control.hw_key->icv_len); } else { txhdr->key_type = 0; txhdr->key_len = 0; @@ -1584,7 +1624,7 @@ static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell) err: printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy)); - kfree_skb(skb); + p54_free_skb(dev, skb); return -EINVAL; } @@ -1824,7 +1864,7 @@ static void p54_remove_interface(struct ieee80211_hw *dev, static int p54_config(struct ieee80211_hw *dev, u32 changed) { - int ret; + int ret = 0; struct p54_common *priv = dev->priv; struct ieee80211_conf *conf = &dev->conf; @@ -2051,7 +2091,7 @@ static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd, algo = P54_CRYPTO_AESCCMP; break; default: - return -EINVAL; + return -EOPNOTSUPP; } } |