/*
* This function joins an ad-hoc network found in a previous scan.
*
* It calls the command preparation routine to send the command to firmware,
* if already not connected to the requested SSID.
*/
int mwifiex_adhoc_join(struct mwifiex_private *priv,
struct mwifiex_bssdescriptor *bss_desc)
{
dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid);
dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
bss_desc->ssid.ssid);
dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n",
bss_desc->ssid.ssid_len);
/* Check if the requested SSID is already joined */
if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
!mwifiex_ssid_cmp(&bss_desc->ssid,
&priv->curr_bss_params.bss_descriptor.ssid) &&
(priv->curr_bss_params.bss_descriptor.bss_mode ==
NL80211_IFTYPE_ADHOC)) {
dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
" is the same as current; not attempting to re-join\n");
return -1;
}
dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
priv->curr_bss_params.bss_descriptor.channel);
dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
priv->curr_bss_params.band);
return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
HostCmd_ACT_GEN_SET, 0, bss_desc);
}
/*
* This function joins an ad-hoc network found in a previous scan.
*
* It calls the command preparation routine to send the command to firmware,
* if already not connected to the requested SSID.
*/
int mwifiex_adhoc_join(struct mwifiex_private *priv,
struct mwifiex_bssdescriptor *bss_desc)
{
dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid);
dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
bss_desc->ssid.ssid);
dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n",
bss_desc->ssid.ssid_len);
/* Check if the requested SSID is already joined */
if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
!mwifiex_ssid_cmp(&bss_desc->ssid,
&priv->curr_bss_params.bss_descriptor.ssid) &&
(priv->curr_bss_params.bss_descriptor.bss_mode ==
NL80211_IFTYPE_ADHOC)) {
dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
" is the same as current; not attempting to re-join\n");
return -1;
}
if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
!bss_desc->disable_11n && !bss_desc->disable_11ac &&
priv->adapter->config_bands & BAND_AAC)
mwifiex_set_11ac_ba_params(priv);
else
mwifiex_set_ba_params(priv);
dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
priv->curr_bss_params.bss_descriptor.channel);
dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
priv->curr_bss_params.band);
return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
HostCmd_ACT_GEN_SET, 0, bss_desc, true);
}
/*
* In Ad-Hoc mode, the IBSS is created if not found in scan list.
* In both Ad-Hoc and infra mode, an deauthentication is performed
* first.
*/
int mwifiex_bss_start(struct mwifiex_private *priv,
struct mwifiex_ssid_bssid *ssid_bssid)
{
int ret;
struct mwifiex_adapter *adapter = priv->adapter;
s32 i = -1;
priv->scan_block = false;
if (!ssid_bssid)
return -1;
if (priv->bss_mode == NL80211_IFTYPE_STATION) {
/* Infra mode */
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
return ret;
/* Search for the requested SSID in the scan table */
if (ssid_bssid->ssid.ssid_len)
i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid,
NULL, NL80211_IFTYPE_STATION);
else
i = mwifiex_find_bssid_in_list(priv,
(u8 *) &ssid_bssid->bssid,
NL80211_IFTYPE_STATION);
if (i < 0)
return -1;
dev_dbg(adapter->dev,
"info: SSID found in scan list ... associating...\n");
/* Clear any past association response stored for
* application retrieval */
priv->assoc_rsp_size = 0;
ret = mwifiex_associate(priv, &adapter->scan_table[i]);
if (ret)
return ret;
} else {
/* Adhoc mode */
/* If the requested SSID matches current SSID, return */
if (ssid_bssid->ssid.ssid_len &&
(!mwifiex_ssid_cmp
(&priv->curr_bss_params.bss_descriptor.ssid,
&ssid_bssid->ssid)))
return 0;
/* Exit Adhoc mode first */
dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
return ret;
priv->adhoc_is_link_sensed = false;
/* Search for the requested network in the scan table */
if (ssid_bssid->ssid.ssid_len)
i = mwifiex_find_ssid_in_list(priv,
&ssid_bssid->ssid, NULL,
NL80211_IFTYPE_ADHOC);
else
i = mwifiex_find_bssid_in_list(priv,
(u8 *)&ssid_bssid->bssid,
NL80211_IFTYPE_ADHOC);
if (i >= 0) {
dev_dbg(adapter->dev, "info: network found in scan"
" list. Joining...\n");
ret = mwifiex_adhoc_join(priv, &adapter->scan_table[i]);
if (ret)
return ret;
} else {
dev_dbg(adapter->dev, "info: Network not found in "
"the list, creating adhoc with ssid = %s\n",
ssid_bssid->ssid.ssid);
ret = mwifiex_adhoc_start(priv, &ssid_bssid->ssid);
if (ret)
return ret;
}
}
return ret;
}
/*
* In Ad-Hoc mode, the IBSS is created if not found in scan list.
* In both Ad-Hoc and infra mode, an deauthentication is performed
* first.
*/
int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
struct cfg80211_ssid *req_ssid)
{
int ret;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_bssdescriptor *bss_desc = NULL;
priv->scan_block = false;
if (bss) {
mwifiex_process_country_ie(priv, bss);
/* Allocate and fill new bss descriptor */
bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
GFP_KERNEL);
if (!bss_desc)
return -ENOMEM;
ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
if (ret)
goto done;
}
if (priv->bss_mode == NL80211_IFTYPE_STATION ||
priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
u8 config_bands;
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
if (!bss_desc)
return -1;
if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
HostCmd_SCAN_RADIO_TYPE_BG)
config_bands = BAND_B | BAND_G | BAND_GN;
else
config_bands = BAND_A | BAND_AN | BAND_AAC;
if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
adapter->config_bands = config_bands;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (ret)
goto done;
if (mwifiex_11h_get_csa_closed_channel(priv) ==
(u8)bss_desc->channel) {
dev_err(adapter->dev,
"Attempt to reconnect on csa closed chan(%d)\n",
bss_desc->channel);
goto done;
}
dev_dbg(adapter->dev, "info: SSID found in scan list ... "
"associating...\n");
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
/* Clear any past association response stored for
* application retrieval */
priv->assoc_rsp_size = 0;
ret = mwifiex_associate(priv, bss_desc);
/* If auth type is auto and association fails using open mode,
* try to connect using shared mode */
if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
priv->sec_info.is_authtype_auto &&
priv->sec_info.wep_enabled) {
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_SHARED_KEY;
ret = mwifiex_associate(priv, bss_desc);
}
if (bss)
cfg80211_put_bss(priv->adapter->wiphy, bss);
} else {
/* Adhoc mode */
/* If the requested SSID matches current SSID, return */
if (bss_desc && bss_desc->ssid.ssid_len &&
(!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
ssid, &bss_desc->ssid))) {
ret = 0;
goto done;
}
/* Exit Adhoc mode first */
dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
priv->adhoc_is_link_sensed = false;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
if (!ret) {
dev_dbg(adapter->dev, "info: network found in scan"
" list. Joining...\n");
ret = mwifiex_adhoc_join(priv, bss_desc);
if (bss)
cfg80211_put_bss(priv->adapter->wiphy, bss);
} else {
dev_dbg(adapter->dev, "info: Network not found in "
"the list, creating adhoc with ssid = %s\n",
req_ssid->ssid);
ret = mwifiex_adhoc_start(priv, req_ssid);
}
}
done:
/* beacon_ie buffer was allocated in function
* mwifiex_fill_new_bss_desc(). Free it now.
*/
if (bss_desc)
kfree(bss_desc->beacon_buf);
kfree(bss_desc);
return ret;
}
/*
* In Ad-Hoc mode, the IBSS is created if not found in scan list.
* In both Ad-Hoc and infra mode, an deauthentication is performed
* first.
*/
int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
struct cfg80211_ssid *req_ssid)
{
int ret;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_bssdescriptor *bss_desc = NULL;
priv->scan_block = false;
if (bss) {
/* Allocate and fill new bss descriptor */
bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
GFP_KERNEL);
if (!bss_desc) {
dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
return -ENOMEM;
}
ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
if (ret)
goto done;
}
if (priv->bss_mode == NL80211_IFTYPE_STATION) {
/* Infra mode */
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (ret)
goto done;
dev_dbg(adapter->dev, "info: SSID found in scan list ... "
"associating...\n");
if (!netif_queue_stopped(priv->netdev))
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
/* Clear any past association response stored for
* application retrieval */
priv->assoc_rsp_size = 0;
ret = mwifiex_associate(priv, bss_desc);
/* If auth type is auto and association fails using open mode,
* try to connect using shared mode */
if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
priv->sec_info.is_authtype_auto &&
priv->sec_info.wep_enabled) {
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_SHARED_KEY;
ret = mwifiex_associate(priv, bss_desc);
}
if (bss)
cfg80211_put_bss(bss);
} else {
/* Adhoc mode */
/* If the requested SSID matches current SSID, return */
if (bss_desc && bss_desc->ssid.ssid_len &&
(!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
ssid, &bss_desc->ssid))) {
kfree(bss_desc);
return 0;
}
/* Exit Adhoc mode first */
dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
priv->adhoc_is_link_sensed = false;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (!netif_queue_stopped(priv->netdev))
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
if (!ret) {
dev_dbg(adapter->dev, "info: network found in scan"
" list. Joining...\n");
ret = mwifiex_adhoc_join(priv, bss_desc);
if (bss)
cfg80211_put_bss(bss);
} else {
dev_dbg(adapter->dev, "info: Network not found in "
"the list, creating adhoc with ssid = %s\n",
req_ssid->ssid);
ret = mwifiex_adhoc_start(priv, req_ssid);
}
}
done:
kfree(bss_desc);
return ret;
}
int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
struct cfg80211_ssid *req_ssid)
{
int ret;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_bssdescriptor *bss_desc = NULL;
u8 *beacon_ie = NULL;
priv->scan_block = false;
if (bss) {
bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
GFP_KERNEL);
if (!bss_desc) {
dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
return -ENOMEM;
}
beacon_ie = kmemdup(bss->information_elements,
bss->len_beacon_ies, GFP_KERNEL);
if (!beacon_ie) {
kfree(bss_desc);
dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
return -ENOMEM;
}
ret = mwifiex_fill_new_bss_desc(priv, bss->bssid, bss->signal,
beacon_ie, bss->len_beacon_ies,
bss->beacon_interval,
bss->capability,
*(u8 *)bss->priv, bss_desc);
if (ret)
goto done;
}
if (priv->bss_mode == NL80211_IFTYPE_STATION) {
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (ret)
goto done;
dev_dbg(adapter->dev, "info: SSID found in scan list ... "
"associating...\n");
if (!netif_queue_stopped(priv->netdev))
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
priv->assoc_rsp_size = 0;
ret = mwifiex_associate(priv, bss_desc);
if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
priv->sec_info.is_authtype_auto &&
priv->sec_info.wep_enabled) {
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_SHARED_KEY;
ret = mwifiex_associate(priv, bss_desc);
}
if (bss)
cfg80211_put_bss(bss);
} else {
if (bss_desc && bss_desc->ssid.ssid_len &&
(!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
ssid, &bss_desc->ssid))) {
kfree(bss_desc);
kfree(beacon_ie);
return 0;
}
dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
priv->adhoc_is_link_sensed = false;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (!netif_queue_stopped(priv->netdev))
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
if (!ret) {
dev_dbg(adapter->dev, "info: network found in scan"
" list. Joining...\n");
ret = mwifiex_adhoc_join(priv, bss_desc);
if (bss)
cfg80211_put_bss(bss);
} else {
dev_dbg(adapter->dev, "info: Network not found in "
"the list, creating adhoc with ssid = %s\n",
req_ssid->ssid);
ret = mwifiex_adhoc_start(priv, req_ssid);
}
}
done:
kfree(bss_desc);
kfree(beacon_ie);
return ret;
}
/*
* In Ad-Hoc mode, the IBSS is created if not found in scan list.
* In both Ad-Hoc and infra mode, an deauthentication is performed
* first.
*/
int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
struct mwifiex_802_11_ssid *req_ssid)
{
int ret;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_bssdescriptor *bss_desc = NULL;
u8 *beacon_ie = NULL;
priv->scan_block = false;
if (bss) {
/* Allocate and fill new bss descriptor */
bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
GFP_KERNEL);
if (!bss_desc) {
dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
return -ENOMEM;
}
beacon_ie = kmemdup(bss->information_elements,
bss->len_beacon_ies, GFP_KERNEL);
if (!beacon_ie) {
kfree(bss_desc);
dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
return -ENOMEM;
}
ret = mwifiex_fill_new_bss_desc(priv, bss->bssid, bss->signal,
beacon_ie, bss->len_beacon_ies,
bss->beacon_interval,
bss->capability,
*(u8 *)bss->priv, bss_desc);
if (ret)
goto done;
}
if (priv->bss_mode == NL80211_IFTYPE_STATION) {
/* Infra mode */
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (ret)
goto done;
dev_dbg(adapter->dev, "info: SSID found in scan list ... "
"associating...\n");
if (!netif_queue_stopped(priv->netdev))
netif_stop_queue(priv->netdev);
/* Clear any past association response stored for
* application retrieval */
priv->assoc_rsp_size = 0;
ret = mwifiex_associate(priv, bss_desc);
if (bss)
cfg80211_put_bss(bss);
} else {
/* Adhoc mode */
/* If the requested SSID matches current SSID, return */
if (bss_desc && bss_desc->ssid.ssid_len &&
(!mwifiex_ssid_cmp
(&priv->curr_bss_params.bss_descriptor.ssid,
&bss_desc->ssid))) {
kfree(bss_desc);
kfree(beacon_ie);
return 0;
}
/* Exit Adhoc mode first */
dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
ret = mwifiex_deauthenticate(priv, NULL);
if (ret)
goto done;
priv->adhoc_is_link_sensed = false;
ret = mwifiex_check_network_compatibility(priv, bss_desc);
if (!netif_queue_stopped(priv->netdev))
netif_stop_queue(priv->netdev);
if (!ret) {
dev_dbg(adapter->dev, "info: network found in scan"
" list. Joining...\n");
ret = mwifiex_adhoc_join(priv, bss_desc);
if (bss)
cfg80211_put_bss(bss);
} else {
dev_dbg(adapter->dev, "info: Network not found in "
"the list, creating adhoc with ssid = %s\n",
req_ssid->ssid);
ret = mwifiex_adhoc_start(priv, req_ssid);
}
}
done:
kfree(bss_desc);
kfree(beacon_ie);
return ret;
}