/*
* This function prepares command to set/get/reset network key(s).
*
* Preparation includes -
* - Setting command ID, action and proper size
* - Setting WEP keys, WAPI keys or WPA keys along with required
* encryption (TKIP, AES) (as required)
* - Ensuring correct endian-ness
*/
static int
mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
u16 cmd_action, u32 cmd_oid,
struct mwifiex_ds_encrypt_key *enc_key)
{
struct host_cmd_ds_802_11_key_material *key_material =
&cmd->params.key_material;
u16 key_param_len = 0;
int ret = 0;
const u8 bc_mac[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
cmd->command = cpu_to_le16(HostCmd_CMD_802_11_KEY_MATERIAL);
key_material->action = cpu_to_le16(cmd_action);
if (cmd_action == HostCmd_ACT_GEN_GET) {
cmd->size =
cpu_to_le16(sizeof(key_material->action) + S_DS_GEN);
return ret;
}
if (!enc_key) {
memset(&key_material->key_param_set, 0,
(NUM_WEP_KEYS *
sizeof(struct mwifiex_ie_type_key_param_set)));
ret = mwifiex_set_keyparamset_wep(priv,
&key_material->key_param_set,
&key_param_len);
cmd->size = cpu_to_le16(key_param_len +
sizeof(key_material->action) + S_DS_GEN);
return ret;
} else
memset(&key_material->key_param_set, 0,
sizeof(struct mwifiex_ie_type_key_param_set));
if (enc_key->is_wapi_key) {
dev_dbg(priv->adapter->dev, "info: Set WAPI Key\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_WAPI);
if (cmd_oid == KEY_INFO_ENABLED)
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
else
key_material->key_param_set.key_info =
cpu_to_le16(!KEY_ENABLED);
key_material->key_param_set.key[0] = enc_key->key_index;
if (!priv->sec_info.wapi_key_on)
key_material->key_param_set.key[1] = 1;
else
/* set 0 when re-key */
key_material->key_param_set.key[1] = 0;
if (0 != memcmp(enc_key->mac_addr, bc_mac, sizeof(bc_mac))) {
/* WAPI pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
} else { /* WAPI group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
priv->sec_info.wapi_key_on = true;
}
key_material->key_param_set.type =
cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
key_material->key_param_set.key_len =
cpu_to_le16(WAPI_KEY_LEN);
memcpy(&key_material->key_param_set.key[2],
enc_key->key_material, enc_key->key_len);
memcpy(&key_material->key_param_set.key[2 + enc_key->key_len],
enc_key->wapi_rxpn, WAPI_RXPN_LEN);
key_material->key_param_set.length =
cpu_to_le16(WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN);
key_param_len = (WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN) +
sizeof(struct mwifiex_ie_types_header);
cmd->size = cpu_to_le16(key_param_len +
sizeof(key_material->action) + S_DS_GEN);
return ret;
}
if (enc_key->key_len == WLAN_KEY_LEN_CCMP) {
dev_dbg(priv->adapter->dev, "cmd: WPA_AES\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_AES);
if (cmd_oid == KEY_INFO_ENABLED)
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
else
key_material->key_param_set.key_info =
cpu_to_le16(!KEY_ENABLED);
if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
/* AES pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
else /* AES group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
} else if (enc_key->key_len == WLAN_KEY_LEN_TKIP) {
dev_dbg(priv->adapter->dev, "cmd: WPA_TKIP\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_TKIP);
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
/* TKIP pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
else /* TKIP group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
}
if (key_material->key_param_set.key_type_id) {
key_material->key_param_set.type =
cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
key_material->key_param_set.key_len =
cpu_to_le16((u16) enc_key->key_len);
memcpy(key_material->key_param_set.key, enc_key->key_material,
enc_key->key_len);
key_material->key_param_set.length =
cpu_to_le16((u16) enc_key->key_len +
KEYPARAMSET_FIXED_LEN);
key_param_len = (u16) (enc_key->key_len + KEYPARAMSET_FIXED_LEN)
+ sizeof(struct mwifiex_ie_types_header);
cmd->size = cpu_to_le16(key_param_len +
sizeof(key_material->action) + S_DS_GEN);
}
return ret;
}
/*
* This function prepares command to set/get/reset network key(s).
*
* Preparation includes -
* - Setting command ID, action and proper size
* - Setting WEP keys, WAPI keys or WPA keys along with required
* encryption (TKIP, AES) (as required)
* - Ensuring correct endian-ness
*/
static int
mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
u16 cmd_action, u32 cmd_oid,
struct mwifiex_ds_encrypt_key *enc_key)
{
struct host_cmd_ds_802_11_key_material *key_material =
&cmd->params.key_material;
struct host_cmd_tlv_mac_addr *tlv_mac;
u16 key_param_len = 0, cmd_size;
int ret = 0;
cmd->command = cpu_to_le16(HostCmd_CMD_802_11_KEY_MATERIAL);
key_material->action = cpu_to_le16(cmd_action);
if (cmd_action == HostCmd_ACT_GEN_GET) {
cmd->size =
cpu_to_le16(sizeof(key_material->action) + S_DS_GEN);
return ret;
}
if (!enc_key) {
memset(&key_material->key_param_set, 0,
(NUM_WEP_KEYS *
sizeof(struct mwifiex_ie_type_key_param_set)));
ret = mwifiex_set_keyparamset_wep(priv,
&key_material->key_param_set,
&key_param_len);
cmd->size = cpu_to_le16(key_param_len +
sizeof(key_material->action) + S_DS_GEN);
return ret;
} else
memset(&key_material->key_param_set, 0,
sizeof(struct mwifiex_ie_type_key_param_set));
if (enc_key->is_wapi_key) {
dev_dbg(priv->adapter->dev, "info: Set WAPI Key\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_WAPI);
if (cmd_oid == KEY_INFO_ENABLED)
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
else
key_material->key_param_set.key_info =
cpu_to_le16(!KEY_ENABLED);
key_material->key_param_set.key[0] = enc_key->key_index;
if (!priv->sec_info.wapi_key_on)
key_material->key_param_set.key[1] = 1;
else
/* set 0 when re-key */
key_material->key_param_set.key[1] = 0;
if (!is_broadcast_ether_addr(enc_key->mac_addr)) {
/* WAPI pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
} else { /* WAPI group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
priv->sec_info.wapi_key_on = true;
}
key_material->key_param_set.type =
cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
key_material->key_param_set.key_len =
cpu_to_le16(WAPI_KEY_LEN);
memcpy(&key_material->key_param_set.key[2],
enc_key->key_material, enc_key->key_len);
memcpy(&key_material->key_param_set.key[2 + enc_key->key_len],
enc_key->pn, PN_LEN);
key_material->key_param_set.length =
cpu_to_le16(WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN);
key_param_len = (WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN) +
sizeof(struct mwifiex_ie_types_header);
cmd->size = cpu_to_le16(sizeof(key_material->action)
+ S_DS_GEN + key_param_len);
return ret;
}
if (enc_key->key_len == WLAN_KEY_LEN_CCMP) {
if (enc_key->is_igtk_key) {
dev_dbg(priv->adapter->dev, "cmd: CMAC_AES\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_AES_CMAC);
if (cmd_oid == KEY_INFO_ENABLED)
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
else
key_material->key_param_set.key_info =
cpu_to_le16(!KEY_ENABLED);
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_IGTK);
} else {
dev_dbg(priv->adapter->dev, "cmd: WPA_AES\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_AES);
if (cmd_oid == KEY_INFO_ENABLED)
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
else
key_material->key_param_set.key_info =
cpu_to_le16(!KEY_ENABLED);
if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
/* AES pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
else /* AES group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
}
} else if (enc_key->key_len == WLAN_KEY_LEN_TKIP) {
dev_dbg(priv->adapter->dev, "cmd: WPA_TKIP\n");
key_material->key_param_set.key_type_id =
cpu_to_le16(KEY_TYPE_ID_TKIP);
key_material->key_param_set.key_info =
cpu_to_le16(KEY_ENABLED);
if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
/* TKIP pairwise key: unicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_UNICAST);
else /* TKIP group key: multicast */
key_material->key_param_set.key_info |=
cpu_to_le16(KEY_MCAST);
}
if (key_material->key_param_set.key_type_id) {
key_material->key_param_set.type =
cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
key_material->key_param_set.key_len =
cpu_to_le16((u16) enc_key->key_len);
memcpy(key_material->key_param_set.key, enc_key->key_material,
enc_key->key_len);
key_material->key_param_set.length =
cpu_to_le16((u16) enc_key->key_len +
KEYPARAMSET_FIXED_LEN);
key_param_len = (u16)(enc_key->key_len + KEYPARAMSET_FIXED_LEN)
+ sizeof(struct mwifiex_ie_types_header);
if (le16_to_cpu(key_material->key_param_set.key_type_id) ==
KEY_TYPE_ID_AES_CMAC) {
struct mwifiex_cmac_param *param =
(void *)key_material->key_param_set.key;
memcpy(param->ipn, enc_key->pn, IGTK_PN_LEN);
memcpy(param->key, enc_key->key_material,
WLAN_KEY_LEN_AES_CMAC);
key_param_len = sizeof(struct mwifiex_cmac_param);
key_material->key_param_set.key_len =
cpu_to_le16(key_param_len);
key_param_len += KEYPARAMSET_FIXED_LEN;
key_material->key_param_set.length =
cpu_to_le16(key_param_len);
key_param_len += sizeof(struct mwifiex_ie_types_header);
}
cmd->size = cpu_to_le16(sizeof(key_material->action) + S_DS_GEN
+ key_param_len);
if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
tlv_mac = (void *)((u8 *)&key_material->key_param_set +
key_param_len);
tlv_mac->tlv.type = cpu_to_le16(TLV_TYPE_STA_MAC_ADDR);
tlv_mac->tlv.len = cpu_to_le16(ETH_ALEN);
memcpy(tlv_mac->mac_addr, enc_key->mac_addr, ETH_ALEN);
cmd_size = key_param_len + S_DS_GEN +
sizeof(key_material->action) +
sizeof(struct host_cmd_tlv_mac_addr);
} else {
cmd_size = key_param_len + S_DS_GEN +
sizeof(key_material->action);
}
cmd->size = cpu_to_le16(cmd_size);
}
return ret;
}
