bool is_hw_crypto_enabled;
};
#define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
+#define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
struct mwl8k_sta {
/* Index into station database. Returned by UPDATE_STADB. */
#define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
#define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
#define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
+#define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
#define MWL8K_CMD_UPDATE_STADB 0x1123
static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
MWL8K_CMDNAME(SET_RATEADAPT_MODE);
MWL8K_CMDNAME(BSS_START);
MWL8K_CMDNAME(SET_NEW_STN);
+ MWL8K_CMDNAME(UPDATE_ENCRYPTION);
MWL8K_CMDNAME(UPDATE_STADB);
default:
snprintf(buf, bufsize, "0x%x", cmd);
return rc;
}
+/*
+ * CMD_UPDATE_ENCRYPTION.
+ */
+
+#define MAX_ENCR_KEY_LENGTH 16
+#define MIC_KEY_LENGTH 8
+
+struct mwl8k_cmd_update_encryption {
+ struct mwl8k_cmd_pkt header;
+
+ __le32 action;
+ __le32 reserved;
+ __u8 mac_addr[6];
+ __u8 encr_type;
+
+} __attribute__((packed));
+
+struct mwl8k_cmd_set_key {
+ struct mwl8k_cmd_pkt header;
+
+ __le32 action;
+ __le32 reserved;
+ __le16 length;
+ __le16 key_type_id;
+ __le32 key_info;
+ __le32 key_id;
+ __le16 key_len;
+ __u8 key_material[MAX_ENCR_KEY_LENGTH];
+ __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
+ __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
+ __le16 tkip_rsc_low;
+ __le32 tkip_rsc_high;
+ __le16 tkip_tsc_low;
+ __le32 tkip_tsc_high;
+ __u8 mac_addr[6];
+} __attribute__((packed));
+
+enum {
+ MWL8K_ENCR_ENABLE,
+ MWL8K_ENCR_SET_KEY,
+ MWL8K_ENCR_REMOVE_KEY,
+ MWL8K_ENCR_SET_GROUP_KEY,
+};
+
+#define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
+#define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
+#define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
+#define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
+#define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
+
+enum {
+ MWL8K_ALG_WEP,
+ MWL8K_ALG_TKIP,
+ MWL8K_ALG_CCMP,
+};
+
+#define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
+#define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
+#define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
+#define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
+#define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
+
+static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u8 *addr,
+ u8 encr_type)
+{
+ struct mwl8k_cmd_update_encryption *cmd;
+ int rc;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
+ cmd->header.length = cpu_to_le16(sizeof(*cmd));
+ cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
+ memcpy(cmd->mac_addr, addr, ETH_ALEN);
+ cmd->encr_type = encr_type;
+
+ rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
+ kfree(cmd);
+
+ return rc;
+}
+
+static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
+ u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
+ cmd->header.length = cpu_to_le16(sizeof(*cmd));
+ cmd->length = cpu_to_le16(sizeof(*cmd) -
+ offsetof(struct mwl8k_cmd_set_key, length));
+ cmd->key_id = cpu_to_le32(key->keyidx);
+ cmd->key_len = cpu_to_le16(key->keylen);
+ memcpy(cmd->mac_addr, addr, ETH_ALEN);
+
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
+ if (key->keyidx == 0)
+ cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
+
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
+ cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
+ : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
+ cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
+ | MWL8K_KEY_FLAG_TSC_VALID);
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
+ cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
+ : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ struct mwl8k_cmd_set_key *cmd;
+ int rc;
+ int keymlen;
+ u32 action;
+ u8 idx;
+ struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
+ if (rc < 0)
+ goto done;
+
+ idx = key->keyidx;
+
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ action = MWL8K_ENCR_SET_KEY;
+ else
+ action = MWL8K_ENCR_SET_GROUP_KEY;
+
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ if (!mwl8k_vif->wep_key_conf[idx].enabled) {
+ memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
+ sizeof(*key) + key->keylen);
+ mwl8k_vif->wep_key_conf[idx].enabled = 1;
+ }
+
+ keymlen = 0;
+ action = MWL8K_ENCR_SET_KEY;
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ keymlen = key->keylen;
+ break;
+ default:
+ rc = -ENOTSUPP;
+ goto done;
+ }
+
+ memcpy(cmd->key_material, key->key, keymlen);
+ cmd->action = cpu_to_le32(action);
+
+ rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
+done:
+ kfree(cmd);
+
+ return rc;
+}
+
+static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ struct mwl8k_cmd_set_key *cmd;
+ int rc;
+ struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
+ if (rc < 0)
+ goto done;
+
+ if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ WLAN_CIPHER_SUITE_WEP104)
+ mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
+
+ cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
+
+ rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
+done:
+ kfree(cmd);
+
+ return rc;
+}
+
+static int mwl8k_set_key(struct ieee80211_hw *hw,
+ enum set_key_cmd cmd_param,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ int rc = 0;
+ u8 encr_type;
+ u8 *addr;
+ struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
+
+ if (vif->type == NL80211_IFTYPE_STATION)
+ return -EOPNOTSUPP;
+
+ if (sta == NULL)
+ addr = hw->wiphy->perm_addr;
+ else
+ addr = sta->addr;
+
+ if (cmd_param == SET_KEY) {
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
+ if (rc)
+ goto out;
+
+ if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
+ || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
+ encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
+ else
+ encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
+
+ rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
+ encr_type);
+ if (rc)
+ goto out;
+
+ mwl8k_vif->is_hw_crypto_enabled = true;
+
+ } else {
+ rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
+
+ if (rc)
+ goto out;
+
+ mwl8k_vif->is_hw_crypto_enabled = false;
+
+ }
+out:
+ return rc;
+}
+
/*
* CMD_UPDATE_STADB.
*/
{
struct mwl8k_priv *priv = hw->priv;
int ret;
+ int i;
+ struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
+ struct ieee80211_key_conf *key;
if (!priv->ap_fw) {
ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
if (ret >= 0) {
MWL8K_STA(sta)->peer_id = ret;
- return 0;
+ ret = 0;
}
} else {
ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
- return ret;
}
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (mwl8k_vif->wep_key_conf[i].enabled)
mwl8k_set_key(hw, SET_KEY, vif, sta, key);
}
- return mwl8k_cmd_set_new_stn_add(hw, vif, sta);
+ return ret;
}
static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue,
.bss_info_changed = mwl8k_bss_info_changed,
.prepare_multicast = mwl8k_prepare_multicast,
.configure_filter = mwl8k_configure_filter,
+ .set_key = mwl8k_set_key,
.set_rts_threshold = mwl8k_set_rts_threshold,
.sta_add = mwl8k_sta_add,
.sta_remove = mwl8k_sta_remove,
projects / users / hch / xfs.git / commitdiff