From b4703a2e32fdffbf83caf699817b21c4fc6d987c Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Fri, 22 May 2009 17:40:20 +0300 Subject: [PATCH] rndis_wlan: explain bits used in key setup code. Driver uses some unnamed bits to control encryption setup. Move these to enumerations with proper names explaining their meaning. Signed-off-by: Jussi Kivilinna Signed-off-by: John W. Linville --- drivers/net/wireless/rndis_wlan.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index 4b3e04699a67..041680019a8e 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -196,6 +196,18 @@ enum ndis_80211_priv_filter { ndis_80211_priv_8021x_wep }; +enum ndis_80211_addkey_bits { + ndis_80211_addkey_8021x_auth = cpu_to_le32(1 << 28), + ndis_80211_addkey_set_init_recv_seq = cpu_to_le32(1 << 29), + ndis_80211_addkey_pairwise_key = cpu_to_le32(1 << 30), + ndis_80211_addkey_transmit_key = cpu_to_le32(1 << 31), +}; + +enum ndis_80211_addwep_bits { + ndis_80211_addwep_perclient_key = cpu_to_le32(1 << 30), + ndis_80211_addwep_transmit_key = cpu_to_le32(1 << 31), +}; + struct ndis_80211_ssid { __le32 length; u8 essid[NDIS_802_11_LENGTH_SSID]; @@ -998,7 +1010,7 @@ static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index) memcpy(&ndis_key.material, key, key_len); if (index == priv->encr_tx_key_index) { - ndis_key.index |= cpu_to_le32(1 << 31); + ndis_key.index |= ndis_80211_addwep_transmit_key; ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104, IW_AUTH_CIPHER_NONE); if (ret) @@ -1044,7 +1056,8 @@ static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN]) if (bssid) { /* pairwise key */ if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0) - remove_key.index |= cpu_to_le32(1 << 30); + remove_key.index |= + ndis_80211_addkey_pairwise_key; memcpy(remove_key.bssid, bssid, sizeof(remove_key.bssid)); } else @@ -1626,7 +1639,7 @@ static int rndis_iw_set_encode_ext(struct net_device *dev, if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { memcpy(ndis_key.rsc, ext->rx_seq, 6); - ndis_key.index |= cpu_to_le32(1 << 29); + ndis_key.index |= ndis_80211_addkey_set_init_recv_seq; } addr = ext->addr.sa_data; @@ -1638,12 +1651,12 @@ static int rndis_iw_set_encode_ext(struct net_device *dev, get_bssid(usbdev, ndis_key.bssid); } else { /* pairwise key */ - ndis_key.index |= cpu_to_le32(1 << 30); + ndis_key.index |= ndis_80211_addkey_pairwise_key; memcpy(ndis_key.bssid, addr, ETH_ALEN); } if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) - ndis_key.index |= cpu_to_le32(1 << 31); + ndis_key.index |= ndis_80211_addkey_transmit_key; if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) { /* wpa_supplicant gives us the Michael MIC RX/TX keys in -- 2.39.2