diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ipw2200.c | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index d417ed7af7c..c9b306a8116 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -5771,7 +5771,8 @@ static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) DCT_FLAG_EXT_SECURITY_CCM, priv->ieee->sec.active_key); - ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); + if (!priv->ieee->host_mc_decrypt) + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); break; case SEC_LEVEL_2: if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) @@ -5786,9 +5787,6 @@ static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) default: break; } - - ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level); - ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level); } static void ipw_adhoc_check(void *data) @@ -6473,6 +6471,7 @@ static int ipw_wpa_set_encryption(struct net_device *dev, struct ipw_param *param, int param_len) { int ret = 0; + int group_key = 0; struct ipw_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee; struct ieee80211_crypto_ops *ops; @@ -6502,6 +6501,9 @@ static int ipw_wpa_set_encryption(struct net_device *dev, return -EINVAL; } + if (param->u.crypt.idx != 0) + group_key = 1; + sec.flags |= SEC_ENABLED | SEC_ENCRYPT; if (strcmp(param->u.crypt.alg, "none") == 0) { if (crypt) { @@ -6517,11 +6519,19 @@ static int ipw_wpa_set_encryption(struct net_device *dev, sec.encrypt = 1; /* IPW HW cannot build TKIP MIC, host decryption still needed. */ - if (strcmp(param->u.crypt.alg, "TKIP") == 0) - ieee->host_encrypt_msdu = 1; + if (strcmp(param->u.crypt.alg, "TKIP") == 0) { + if (group_key) + ieee->host_mc_decrypt = 1; + else + ieee->host_encrypt_msdu = 1; + } - if (!(ieee->host_encrypt || ieee->host_encrypt_msdu || - ieee->host_decrypt)) + /*if (!(ieee->host_encrypt || ieee->host_encrypt_msdu || + ieee->host_decrypt)) + goto skip_host_crypt; */ + if (group_key ? !ieee->host_mc_decrypt : + !(ieee->host_encrypt || ieee->host_decrypt || + ieee->host_encrypt_msdu)) goto skip_host_crypt; ops = ieee80211_get_crypto_ops(param->u.crypt.alg); @@ -6604,6 +6614,9 @@ static int ipw_wpa_set_encryption(struct net_device *dev, sec.flags |= SEC_LEVEL; sec.level = SEC_LEVEL_3; } + /* Don't set sec level for group keys. */ + if (group_key) + sec.flags &= ~SEC_LEVEL; } done: if (ieee->set_security) @@ -6953,15 +6966,21 @@ static int ipw_wx_set_encodeext(struct net_device *dev, struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; if (hwcrypto) { - /* IPW HW can't build TKIP MIC, host decryption still needed */ if (ext->alg == IW_ENCODE_ALG_TKIP) { - priv->ieee->host_encrypt = 0; - priv->ieee->host_encrypt_msdu = 1; - priv->ieee->host_decrypt = 1; + /* IPW HW can't build TKIP MIC, + host decryption still needed */ + if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) + priv->ieee->host_mc_decrypt = 1; + else { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 1; + priv->ieee->host_decrypt = 1; + } } else { priv->ieee->host_encrypt = 0; priv->ieee->host_encrypt_msdu = 0; priv->ieee->host_decrypt = 0; + priv->ieee->host_mc_decrypt = 0; } } @@ -7878,6 +7897,7 @@ static void ipw_handle_data_packet(struct ipw_priv *priv, struct ipw_rx_mem_buffer *rxb, struct ieee80211_rx_stats *stats) { + struct ieee80211_hdr_4addr *hdr; struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; /* We received data from the HW, so stop the watchdog */ @@ -7907,7 +7927,10 @@ static void ipw_handle_data_packet(struct ipw_priv *priv, IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */ - if (!priv->ieee->host_decrypt && priv->ieee->iw_mode != IW_MODE_MONITOR) + hdr = (struct ieee80211_hdr_4addr *)rxb->skb->data; + if (priv->ieee->iw_mode != IW_MODE_MONITOR && + (is_multicast_ether_addr(hdr->addr1) ? + !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt)) ipw_rebuild_decrypted_skb(priv, rxb->skb); if (!ieee80211_rx(priv->ieee, rxb->skb, stats)) @@ -8508,6 +8531,7 @@ static int ipw_sw_reset(struct ipw_priv *priv, int init) priv->ieee->host_encrypt = 0; priv->ieee->host_encrypt_msdu = 0; priv->ieee->host_decrypt = 0; + priv->ieee->host_mc_decrypt = 0; } IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off"); |