From: Avinash Patil <patila@xxxxxxxxxxx>
This patch adds cfg80211 del_station handler for mwifiex.
If bss is not started or there are no stations in associated
stations list, no action is taken. If argument received is
null/broadcast mac, all stations in associated station list are
deauthenticated.
Patch also deletes related RxReorder stream and TxBA stream tables
for related station.
Signed-off-by: Avinash Patil <patila@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/cfg80211.c | 46 ++++++++++++++++++++++++++++++
drivers/net/wireless/mwifiex/cmdevt.c | 1 +
drivers/net/wireless/mwifiex/fw.h | 7 +++++
drivers/net/wireless/mwifiex/main.h | 2 ++
drivers/net/wireless/mwifiex/sta_cmdresp.c | 2 ++
drivers/net/wireless/mwifiex/uap_cmd.c | 21 ++++++++++++++
drivers/net/wireless/mwifiex/uap_event.c | 16 +++++++++++
7 files changed, 95 insertions(+)
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index e493f89..00a8281 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1231,6 +1231,51 @@ static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
return 0;
}
+/* cfg80211 operation handler for del_station.
+ * Function deauthenticates station which value is provided in mac parameter.
+ * If mac is NULL/broadcast, all stations in associated station list are
+ * deauthenticated. If bss is not started or there are no stations in
+ * associated stations list, no action is taken.
+ */
+static int
+mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac)
+{
+ struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+ struct mwifiex_sta_node *sta_node;
+ unsigned long flags;
+
+ if (list_empty(&priv->sta_list) || !priv->bss_started)
+ return 0;
+
+ if (!mac || is_broadcast_ether_addr(mac)) {
+ wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
+ list_for_each_entry(sta_node, &priv->sta_list, list) {
+ if (mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_UAP_STA_DEAUTH,
+ HostCmd_ACT_GEN_SET, 0,
+ sta_node->mac_addr))
+ return -1;
+ mwifiex_uap_del_sta_data(priv, sta_node);
+ }
+ } else {
+ wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
+ spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+ sta_node = mwifiex_get_sta_entry(priv, mac);
+ spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+ if (sta_node) {
+ if (mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_UAP_STA_DEAUTH,
+ HostCmd_ACT_GEN_SET, 0,
+ sta_node->mac_addr))
+ return -1;
+ mwifiex_uap_del_sta_data(priv, sta_node);
+ }
+ }
+
+ return 0;
+}
+
static int
mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
{
@@ -2422,6 +2467,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
.change_beacon = mwifiex_cfg80211_change_beacon,
.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
.set_antenna = mwifiex_cfg80211_set_antenna,
+ .del_station = mwifiex_cfg80211_del_station,
#ifdef CONFIG_PM
.suspend = mwifiex_cfg80211_suspend,
.resume = mwifiex_cfg80211_resume,
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 26755d9..2d76147 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -570,6 +570,7 @@ int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
case HostCmd_CMD_UAP_SYS_CONFIG:
case HostCmd_CMD_UAP_BSS_START:
case HostCmd_CMD_UAP_BSS_STOP:
+ case HostCmd_CMD_UAP_STA_DEAUTH:
ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action,
cmd_oid, data_buf,
cmd_ptr);
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 1f7578d..d3c1e01 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -279,6 +279,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
#define HostCmd_CMD_UAP_SYS_CONFIG 0x00b0
#define HostCmd_CMD_UAP_BSS_START 0x00b1
#define HostCmd_CMD_UAP_BSS_STOP 0x00b2
+#define HostCmd_CMD_UAP_STA_DEAUTH 0x00b5
#define HostCmd_CMD_11N_CFG 0x00cd
#define HostCmd_CMD_11N_ADDBA_REQ 0x00ce
#define HostCmd_CMD_11N_ADDBA_RSP 0x00cf
@@ -1197,6 +1198,11 @@ struct host_cmd_ds_amsdu_aggr_ctrl {
__le16 curr_buf_size;
} __packed;
+struct host_cmd_ds_sta_deauth {
+ u8 mac[ETH_ALEN];
+ __le16 reason;
+} __packed;
+
struct mwifiex_ie_types_wmm_param_set {
struct mwifiex_ie_types_header header;
u8 wmm_ie[1];
@@ -1630,6 +1636,7 @@ struct host_cmd_ds_command {
struct host_cmd_ds_802_11_eeprom_access eeprom;
struct host_cmd_ds_802_11_subsc_evt subsc_evt;
struct host_cmd_ds_sys_config uap_sys_config;
+ struct host_cmd_ds_sta_deauth sta_deauth;
struct host_cmd_11ac_vht_cfg vht_cfg;
} params;
} __packed;
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 81251d9..9cf6852 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -1115,6 +1115,8 @@ int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
struct cfg80211_beacon_data *data);
int mwifiex_del_mgmt_ies(struct mwifiex_private *priv);
u8 *mwifiex_11d_code_2_region(u8 code);
+void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
+ struct mwifiex_sta_node *node);
extern const struct ethtool_ops mwifiex_ethtool_ops;
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 9f990e1..c710a1b 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -978,6 +978,8 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
case HostCmd_CMD_UAP_BSS_STOP:
priv->bss_started = 0;
break;
+ case HostCmd_CMD_UAP_STA_DEAUTH:
+ break;
case HostCmd_CMD_MEF_CFG:
break;
default:
diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index b04b1db..2de882d 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -689,6 +689,23 @@ mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
return 0;
}
+/* This function prepares AP specific deauth command with mac supplied in
+ * function parameter.
+ */
+static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *cmd, u8 *mac)
+{
+ struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
+
+ cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
+ memcpy(sta_deauth->mac, mac, ETH_ALEN);
+ sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
+
+ cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
+ S_DS_GEN);
+ return 0;
+}
+
/* This function prepares the AP specific commands before sending them
* to the firmware.
* This is a generic function which calls specific command preparation
@@ -710,6 +727,10 @@ int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
cmd->command = cpu_to_le16(cmd_no);
cmd->size = cpu_to_le16(S_DS_GEN);
break;
+ case HostCmd_CMD_UAP_STA_DEAUTH:
+ if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
+ return -1;
+ break;
default:
dev_err(priv->adapter->dev,
"PREP_CMD: unknown cmd %#x\n", cmd_no);
diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c
index 77fb533..7180665 100644
--- a/drivers/net/wireless/mwifiex/uap_event.c
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -292,3 +292,19 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
return 0;
}
+
+/* This function deletes station entry from associated station list.
+ * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream
+ * tables created for this station are deleted.
+ */
+void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
+ struct mwifiex_sta_node *node)
+{
+ if (priv->ap_11n_enabled && node->is_11n_enabled) {
+ mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr);
+ mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr);
+ }
+ mwifiex_del_sta_entry(priv, node->mac_addr);
+
+ return;
+}
--
1.8.2.3
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