/**
* @brief Process an TLV buffer for a pending BSS Join command for
* both adhoc and infra networks
*
* The TLV command processing for a BSS join for either adhoc or
* infrastructure network is performed with this function. The
* capability bits are inspected for the IBSS flag and the appropriate
* local routines are called to setup the necessary TLVs.
*
* Activate 11h functionality in the firmware if the spectrum management
* capability bit is found in the network information for the BSS we are
* joining.
*
* @param priv Private driver information structure
* @param ppbuffer Output parameter: Pointer to the TLV output buffer,
* modified on return to point after the appended 11h TLVs
* @param pcap_info Pointer to the capability info for the BSS to join
* @param channel Channel on which we are joining the BSS
* @param p11h_bss_info Pointer to the 11h BSS information for this
* network that was parsed out of the scan response.
*
* @return Integer number of bytes appended to the TLV output
* buffer (ppbuffer), MLAN_STATUS_FAILURE (-1),
* or MLAN_STATUS_SUCCESS (0)
*/
int
wlan_11h_process_join(mlan_private * priv,
t_u8 ** ppbuffer,
IEEEtypes_CapInfo_t * pcap_info,
t_u32 channel, wlan_11h_bss_info_t * p11h_bss_info)
{
int ret = 0;
ENTER();
if (priv->media_connected == MTRUE) {
if (wlan_11h_is_active(priv) == p11h_bss_info->sensed_11h) {
/* Assume DFS parameters are the same for roaming as long as the
current & next APs have the same spectrum mgmt capability bit
setting */
ret = MLAN_STATUS_SUCCESS;
} else {
/* No support for roaming between DFS/non-DFS yet */
ret = MLAN_STATUS_FAILURE;
}
LEAVE();
return ret;
}
if (p11h_bss_info->sensed_11h) {
/* No use having 11h enabled without 11d enabled */
wlan_11d_enable(priv, MNULL, ENABLE_11D);
wlan_11d_parse_dnld_countryinfo(priv, priv->pattempted_bss_desc);
/* Activate 11h functions in firmware, turns on capability bit */
wlan_11h_activate(priv, MTRUE);
pcap_info->spectrum_mgmt = 1;
if (pcap_info->ibss) {
PRINTM(MINFO, "11h: Adhoc join: Sensed\n");
ret = wlan_11h_process_adhoc(priv, ppbuffer, channel,
p11h_bss_info);
} else {
PRINTM(MINFO, "11h: Infra join: Sensed\n");
ret = wlan_11h_process_infra_join(priv, ppbuffer,
channel, p11h_bss_info);
}
} else {
/* Deactivate 11h functions in the firmware */
wlan_11h_activate(priv, MFALSE);
pcap_info->spectrum_mgmt = 0;
}
LEAVE();
return ret;
}
/**
* @brief Set SNMP MIB for 11H
*
* @param pmadapter A pointer to mlan_adapter structure
* @param pioctl_req A pointer to ioctl request buffer
*
* @return MLAN_STATUS_PENDING --success, otherwise fail
* @sa wlan_uap_callback_snmp_mib_11h
*/
static mlan_status
wlan_uap_snmp_mib_11h(IN pmlan_adapter pmadapter, IN pmlan_ioctl_req pioctl_req)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_private *pmpriv = pmadapter->priv[pioctl_req->bss_index];
mlan_ds_snmp_mib *snmp = MNULL;
t_bool enable;
ENTER();
if (pioctl_req->buf_len < sizeof(mlan_ds_snmp_mib)) {
PRINTM(MWARN, "MLAN snmp_mib IOCTL length is too short.\n");
pioctl_req->data_read_written = 0;
pioctl_req->buf_len_needed = sizeof(mlan_ds_snmp_mib);
LEAVE();
return MLAN_STATUS_RESOURCE;
}
snmp = (mlan_ds_snmp_mib *) pioctl_req->pbuf;
enable = (snmp->param.oid_value) ? MTRUE : MFALSE;
if (enable) {
/* first enable 11D if it is not enabled */
if (!wlan_11d_is_enabled(pmpriv)) {
ret = wlan_11d_enable(pmpriv, MNULL, ENABLE_11D);
if (ret != MLAN_STATUS_SUCCESS) {
PRINTM(MERROR,
"Failed to first enable 11D before enabling 11H.\n");
LEAVE();
return ret;
}
}
}
/* store params, issue command to get UAP channel, whose CMD_RESP will
callback remainder of 11H handling (and radar detect if DFS chan) */
pmpriv->uap_state_chan_cb.pioctl_req_curr = pioctl_req;
pmpriv->uap_state_chan_cb.get_chan_callback =
wlan_uap_callback_snmp_mib_11h;
ret = wlan_uap_get_channel(pmpriv);
if (ret == MLAN_STATUS_SUCCESS)
ret = MLAN_STATUS_PENDING;
LEAVE();
return ret;
}
/**
* @brief Process an TLV buffer for a pending BSS Adhoc start command.
*
* Activate 11h functionality in the firmware if driver has is enabled
* for 11h (configured by the application via IOCTL).
*
* @param priv Private driver information structure
* @param ppbuffer Output parameter: Pointer to the TLV output buffer,
* modified on return to point after the appended 11h TLVs
* @param pcap_info Pointer to the capability info for the BSS to join
* @param channel Channel on which we are starting the IBSS
* @param p11h_bss_info Input/Output parameter: Pointer to the 11h BSS
* information for this network that we are establishing.
* 11h sensed flag set on output if warranted.
*
* @return Integer number of bytes appended to the TLV output
* buffer (ppbuffer)
*
*/
int
wlan_11h_process_start(mlan_private * priv,
t_u8 ** ppbuffer,
IEEEtypes_CapInfo_t * pcap_info,
t_u32 channel, wlan_11h_bss_info_t * p11h_bss_info)
{
mlan_adapter *adapter = priv->adapter;
int ret = 0;
ENTER();
if (wlan_11h_is_enabled(priv)
&& ((adapter->adhoc_start_band & BAND_A)
|| (adapter->adhoc_start_band & BAND_AN)
)
) {
if (wlan_11d_get_state(priv) == DISABLE_11D) {
/* No use having 11h enabled without 11d enabled */
wlan_11d_enable(priv, MNULL, ENABLE_11D);
wlan_11d_create_dnld_countryinfo(priv, adapter->adhoc_start_band);
}
/* Activate 11h functions in firmware, turns on capability bit */
wlan_11h_activate(priv, MTRUE);
pcap_info->spectrum_mgmt = 1;
/* Set flag indicating this BSS we are starting is using 11h */
p11h_bss_info->sensed_11h = MTRUE;
ret = wlan_11h_process_adhoc(priv, ppbuffer, channel, MNULL);
} else {
/* Deactivate 11h functions in the firmware */
wlan_11h_activate(priv, MFALSE);
pcap_info->spectrum_mgmt = 0;
}
LEAVE();
return ret;
}
/**
* @brief Set SNMP MIB for 11D
*
* @param pmadapter A pointer to mlan_adapter structure
* @param pioctl_req A pointer to ioctl request buffer
*
* @return MLAN_STATUS_PENDING --success, otherwise fail
*/
static mlan_status
wlan_uap_snmp_mib_11d(IN pmlan_adapter pmadapter, IN pmlan_ioctl_req pioctl_req)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_private *pmpriv = pmadapter->priv[pioctl_req->bss_index];
mlan_ds_snmp_mib *snmp = MNULL;
state_11d_t flag;
ENTER();
if (pioctl_req->buf_len < sizeof(mlan_ds_snmp_mib)) {
PRINTM(MWARN, "MLAN snmp_mib IOCTL length is too short.\n");
pioctl_req->data_read_written = 0;
pioctl_req->buf_len_needed = sizeof(mlan_ds_snmp_mib);
LEAVE();
return MLAN_STATUS_RESOURCE;
}
if ((pioctl_req->action == MLAN_ACT_SET) && pmpriv->uap_bss_started) {
PRINTM(MIOCTL,
"11D setting cannot be changed while UAP bss is started.\n");
pioctl_req->data_read_written = 0;
LEAVE();
return MLAN_STATUS_FAILURE;
}
snmp = (mlan_ds_snmp_mib *) pioctl_req->pbuf;
flag = (snmp->param.oid_value) ? ENABLE_11D : DISABLE_11D;
ret = wlan_11d_enable(pmpriv, (t_void *) pioctl_req, flag);
if (ret == MLAN_STATUS_SUCCESS)
ret = MLAN_STATUS_PENDING;
LEAVE();
return ret;
}
