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path: root/drivers/staging/wilc1000/linux_mon.c
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Diffstat (limited to 'drivers/staging/wilc1000/linux_mon.c')
-rw-r--r--drivers/staging/wilc1000/linux_mon.c598
1 files changed, 598 insertions, 0 deletions
diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c
new file mode 100644
index 000000000..f5296f53a
--- /dev/null
+++ b/drivers/staging/wilc1000/linux_mon.c
@@ -0,0 +1,598 @@
+/*!
+ * @file linux_mon.c
+ * @brief File Operations OS wrapper functionality
+ * @author mdaftedar
+ * @sa wilc_wfi_netdevice.h
+ * @date 01 MAR 2012
+ * @version 1.0
+ */
+
+#ifndef SIMULATION
+#include "wilc_wfi_cfgoperations.h"
+#include "linux_wlan_common.h"
+#include "wilc_wlan_if.h"
+#include "wilc_wlan.h"
+#endif
+#ifdef WILC_FULLY_HOSTING_AP
+#include "wilc_host_ap.h"
+#endif
+#ifdef WILC_AP_EXTERNAL_MLME
+#ifdef SIMULATION
+#include "wilc_wfi_cfgoperations.h"
+#endif
+
+struct wilc_wfi_radiotap_hdr {
+ struct ieee80211_radiotap_header hdr;
+ u8 rate;
+ /* u32 channel; */
+} __attribute__((packed));
+
+struct wilc_wfi_radiotap_cb_hdr {
+ struct ieee80211_radiotap_header hdr;
+ u8 rate;
+ u8 dump;
+ u16 tx_flags;
+ /* u32 channel; */
+} __attribute__((packed));
+
+extern linux_wlan_t *g_linux_wlan;
+
+static struct net_device *wilc_wfi_mon; /* global monitor netdev */
+
+#ifdef SIMULATION
+extern int WILC_WFI_Tx(struct sk_buff *skb, struct net_device *dev);
+#elif USE_WIRELESS
+extern int mac_xmit(struct sk_buff *skb, struct net_device *dev);
+#endif
+
+
+u8 srcAdd[6];
+u8 bssid[6];
+u8 broadcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+/**
+ * @brief WILC_WFI_monitor_rx
+ * @details
+ * @param[in]
+ * @return int : Return 0 on Success
+ * @author mdaftedar
+ * @date 12 JUL 2012
+ * @version 1.0
+ */
+
+#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
+#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive*/
+#define IS_MANAGMEMENT 0x100
+#define IS_MANAGMEMENT_CALLBACK 0x080
+#define IS_MGMT_STATUS_SUCCES 0x040
+#define GET_PKT_OFFSET(a) (((a) >> 22) & 0x1ff)
+
+void WILC_WFI_monitor_rx(uint8_t *buff, uint32_t size)
+{
+ uint32_t header, pkt_offset;
+ struct sk_buff *skb = NULL;
+ struct wilc_wfi_radiotap_hdr *hdr;
+ struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
+
+ PRINT_INFO(HOSTAPD_DBG, "In monitor interface receive function\n");
+
+ /* struct WILC_WFI_priv *priv = netdev_priv(dev); */
+
+ /* priv = wiphy_priv(priv->dev->ieee80211_ptr->wiphy); */
+
+ /* Bug 4601 */
+ if (wilc_wfi_mon == NULL)
+ return;
+
+ if (!netif_running(wilc_wfi_mon)) {
+ PRINT_INFO(HOSTAPD_DBG, "Monitor interface already RUNNING\n");
+ return;
+ }
+
+ /* Get WILC header */
+ memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET);
+
+ /* The packet offset field conain info about what type of managment frame */
+ /* we are dealing with and ack status */
+ pkt_offset = GET_PKT_OFFSET(header);
+
+ if (pkt_offset & IS_MANAGMEMENT_CALLBACK) {
+
+ /* hostapd callback mgmt frame */
+
+ skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_cb_hdr));
+ if (skb == NULL) {
+ PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
+ return;
+ }
+
+ memcpy(skb_put(skb, size), buff, size);
+
+ cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb, sizeof(*cb_hdr));
+ memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
+
+ cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_present = cpu_to_le32(
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_TX_FLAGS));
+
+ cb_hdr->rate = 5; /* txrate->bitrate / 5; */
+
+ if (pkt_offset & IS_MGMT_STATUS_SUCCES) {
+ /* success */
+ cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_RTS;
+ } else {
+ cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_FAIL;
+ }
+
+ } else {
+
+ skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_hdr));
+
+ if (skb == NULL) {
+ PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
+ return;
+ }
+
+ /* skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); */
+ /* if (skb == NULL) */
+ /* return; */
+
+ memcpy(skb_put(skb, size), buff, size);
+ hdr = (struct wilc_wfi_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
+ memset(hdr, 0, sizeof(struct wilc_wfi_radiotap_hdr));
+ hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
+ /* hdr->hdr.it_pad = 0; */
+ hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_hdr));
+ PRINT_INFO(HOSTAPD_DBG, "Radiotap len %d\n", hdr->hdr.it_len);
+ hdr->hdr.it_present = cpu_to_le32
+ (1 << IEEE80211_RADIOTAP_RATE); /* | */
+ /* (1 << IEEE80211_RADIOTAP_CHANNEL)); */
+ PRINT_INFO(HOSTAPD_DBG, "Presentflags %d\n", hdr->hdr.it_present);
+ hdr->rate = 5; /* txrate->bitrate / 5; */
+
+ }
+
+/* if(INFO || if(skb->data[9] == 0x00 || skb->data[9] == 0xb0))
+ * {
+ * for(i=0;i<skb->len;i++)
+ * PRINT_INFO(HOSTAPD_DBG,"Mon RxData[%d] = %02x\n",i,skb->data[i]);
+ * }*/
+
+
+ skb->dev = wilc_wfi_mon;
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+ memset(skb->cb, 0, sizeof(skb->cb));
+
+ netif_rx(skb);
+
+
+}
+
+struct tx_complete_mon_data {
+ int size;
+ void *buff;
+};
+
+static void mgmt_tx_complete(void *priv, int status)
+{
+
+ /* struct sk_buff *skb2; */
+ /* struct wilc_wfi_radiotap_cb_hdr *cb_hdr; */
+
+ struct tx_complete_mon_data *pv_data = (struct tx_complete_mon_data *)priv;
+ u8 *buf = pv_data->buff;
+
+
+
+ if (status == 1) {
+ if (INFO || buf[0] == 0x10 || buf[0] == 0xb0)
+ PRINT_INFO(HOSTAPD_DBG, "Packet sent successfully - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
+ } else {
+ PRINT_INFO(HOSTAPD_DBG, "Couldn't send packet - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
+ }
+
+
+/* //(skb->data[9] == 0x00 || skb->data[9] == 0xb0 || skb->data[9] == 0x40 || skb->data[9] == 0xd0 )
+ * {
+ * skb2 = dev_alloc_skb(pv_data->size+sizeof(struct wilc_wfi_radiotap_cb_hdr));
+ *
+ * memcpy(skb_put(skb2,pv_data->size),pv_data->buff, pv_data->size);
+ *
+ * cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb2, sizeof(*cb_hdr));
+ * memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
+ *
+ * cb_hdr->hdr.it_version = 0;//PKTHDR_RADIOTAP_VERSION;
+ *
+ * cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
+ *
+ * cb_hdr->hdr.it_present = cpu_to_le32(
+ * (1 << IEEE80211_RADIOTAP_RATE) |
+ * (1 << IEEE80211_RADIOTAP_TX_FLAGS));
+ *
+ * cb_hdr->rate = 5;//txrate->bitrate / 5;
+ * cb_hdr->tx_flags = 0x0004;
+ *
+ * skb2->dev = wilc_wfi_mon;
+ * skb_set_mac_header(skb2, 0);
+ * skb2->ip_summed = CHECKSUM_UNNECESSARY;
+ * skb2->pkt_type = PACKET_OTHERHOST;
+ * skb2->protocol = htons(ETH_P_802_2);
+ * memset(skb2->cb, 0, sizeof(skb2->cb));
+ *
+ * netif_rx(skb2);
+ * }*/
+
+ /* incase of fully hosting mode, the freeing will be done in response to the cfg packet */
+ #ifndef WILC_FULLY_HOSTING_AP
+ kfree(pv_data->buff);
+
+ kfree(pv_data);
+ #endif
+}
+static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
+{
+ linux_wlan_t *nic;
+ struct tx_complete_mon_data *mgmt_tx = NULL;
+
+ if (dev == NULL) {
+ PRINT_D(HOSTAPD_DBG, "ERROR: dev == NULL\n");
+ return WILC_FAIL;
+ }
+ nic = netdev_priv(dev);
+
+ netif_stop_queue(dev);
+ mgmt_tx = kmalloc(sizeof(struct tx_complete_mon_data), GFP_ATOMIC);
+ if (mgmt_tx == NULL) {
+ PRINT_ER("Failed to allocate memory for mgmt_tx structure\n");
+ return WILC_FAIL;
+ }
+
+ #ifdef WILC_FULLY_HOSTING_AP
+ /* add space for the pointer to tx_complete_mon_data */
+ len += sizeof(struct tx_complete_mon_data *);
+ #endif
+
+ mgmt_tx->buff = kmalloc(len, GFP_ATOMIC);
+ if (mgmt_tx->buff == NULL) {
+ PRINT_ER("Failed to allocate memory for mgmt_tx buff\n");
+ return WILC_FAIL;
+
+ }
+
+ mgmt_tx->size = len;
+
+ #ifndef WILC_FULLY_HOSTING_AP
+ memcpy(mgmt_tx->buff, buf, len);
+ #else
+ memcpy(mgmt_tx->buff, buf, len - sizeof(struct tx_complete_mon_data *));
+ memcpy((mgmt_tx->buff) + (len - sizeof(struct tx_complete_mon_data *)), &mgmt_tx, sizeof(struct tx_complete_mon_data *));
+
+ /* filter data frames to handle it's PS */
+ if (filter_monitor_data_frames((mgmt_tx->buff), len) == true) {
+ return;
+ }
+
+ #endif /* WILC_FULLY_HOSTING_AP */
+
+ g_linux_wlan->oup.wlan_add_mgmt_to_tx_que(mgmt_tx, mgmt_tx->buff, mgmt_tx->size, mgmt_tx_complete);
+
+ netif_wake_queue(dev);
+ return 0;
+}
+
+/**
+ * @brief WILC_WFI_mon_xmit
+ * @details
+ * @param[in]
+ * @return int : Return 0 on Success
+ * @author mdaftedar
+ * @date 12 JUL 2012
+ * @version 1.0
+ */
+static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_radiotap_header *rtap_hdr;
+ u32 rtap_len, i, ret = 0;
+ struct WILC_WFI_mon_priv *mon_priv;
+
+ struct sk_buff *skb2;
+ struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
+
+ /* Bug 4601 */
+ if (wilc_wfi_mon == NULL)
+ return WILC_FAIL;
+
+ /* if(skb->data[3] == 0x10 || skb->data[3] == 0xb0) */
+
+ mon_priv = netdev_priv(wilc_wfi_mon);
+
+ if (mon_priv == NULL) {
+ PRINT_ER("Monitor interface private structure is NULL\n");
+ return WILC_FAIL;
+ }
+
+ rtap_hdr = (struct ieee80211_radiotap_header *)skb->data;
+
+ rtap_len = ieee80211_get_radiotap_len(skb->data);
+ if (skb->len < rtap_len) {
+ PRINT_ER("Error in radiotap header\n");
+ return -1;
+ }
+ /* skip the radiotap header */
+ PRINT_INFO(HOSTAPD_DBG, "Radiotap len: %d\n", rtap_len);
+
+ if (INFO) {
+ for (i = 0; i < rtap_len; i++)
+ PRINT_INFO(HOSTAPD_DBG, "Radiotap_hdr[%d] %02x\n", i, skb->data[i]);
+ }
+ /* Skip the ratio tap header */
+ skb_pull(skb, rtap_len);
+
+ if (skb->data[0] == 0xc0)
+ PRINT_INFO(HOSTAPD_DBG, "%x:%x:%x:%x:%x%x\n", skb->data[4], skb->data[5], skb->data[6], skb->data[7], skb->data[8], skb->data[9]);
+
+ if (skb->data[0] == 0xc0 && (!(memcmp(broadcast, &skb->data[4], 6)))) {
+ skb2 = dev_alloc_skb(skb->len + sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ memcpy(skb_put(skb2, skb->len), skb->data, skb->len);
+
+ cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb2, sizeof(*cb_hdr));
+ memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
+
+ cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_present = cpu_to_le32(
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_TX_FLAGS));
+
+ cb_hdr->rate = 5; /* txrate->bitrate / 5; */
+ cb_hdr->tx_flags = 0x0004;
+
+ skb2->dev = wilc_wfi_mon;
+ skb_set_mac_header(skb2, 0);
+ skb2->ip_summed = CHECKSUM_UNNECESSARY;
+ skb2->pkt_type = PACKET_OTHERHOST;
+ skb2->protocol = htons(ETH_P_802_2);
+ memset(skb2->cb, 0, sizeof(skb2->cb));
+
+ netif_rx(skb2);
+
+ return 0;
+ }
+ skb->dev = mon_priv->real_ndev;
+
+ PRINT_INFO(HOSTAPD_DBG, "Skipping the radiotap header\n");
+
+
+
+ /* actual deliver of data is device-specific, and not shown here */
+ PRINT_INFO(HOSTAPD_DBG, "SKB netdevice name = %s\n", skb->dev->name);
+ PRINT_INFO(HOSTAPD_DBG, "MONITOR real dev name = %s\n", mon_priv->real_ndev->name);
+
+ #ifdef SIMULATION
+ ret = WILC_WFI_Tx(skb, mon_priv->real_ndev);
+ #elif USE_WIRELESS
+ /* Identify if Ethernet or MAC header (data or mgmt) */
+ memcpy(srcAdd, &skb->data[10], 6);
+ memcpy(bssid, &skb->data[16], 6);
+ /* if source address and bssid fields are equal>>Mac header */
+ /*send it to mgmt frames handler */
+ if (!(memcmp(srcAdd, bssid, 6))) {
+ mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
+ dev_kfree_skb(skb);
+ } else
+ ret = mac_xmit(skb, mon_priv->real_ndev);
+ #endif
+
+ /* return NETDEV_TX_OK; */
+ return ret;
+}
+
+static const struct net_device_ops wilc_wfi_netdev_ops = {
+ .ndo_start_xmit = WILC_WFI_mon_xmit,
+
+};
+
+#ifdef WILC_FULLY_HOSTING_AP
+/*
+ * @brief WILC_mgm_HOSTAPD_ACK
+ * @details report the status of transmitted mgmt frames to HOSTAPD
+ * @param[in] priv : pointer to tx_complete_mon_data struct
+ * bStatus : status of transmission
+ * @author Abd Al-Rahman Diab
+ * @date 9 May 2013
+ * @version 1.0
+ */
+void WILC_mgm_HOSTAPD_ACK(void *priv, bool bStatus)
+{
+ struct sk_buff *skb;
+ struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
+
+ struct tx_complete_mon_data *pv_data = (struct tx_complete_mon_data *)priv;
+ u8 *buf = pv_data->buff;
+
+ /* len of the original frame without the added pointer at the tail */
+ u16 u16len = (pv_data->size) - sizeof(struct tx_complete_mon_data *);
+
+
+ /*if(bStatus == 1){
+ * if(INFO || buf[0] == 0x10 || buf[0] == 0xb0)
+ * PRINT_D(HOSTAPD_DBG,"Packet sent successfully - Size = %d - Address = %p.\n",u16len,pv_data->buff);
+ * }else{
+ * PRINT_D(HOSTAPD_DBG,"Couldn't send packet - Size = %d - Address = %p.\n",u16len,pv_data->buff);
+ * }
+ */
+
+ /* (skb->data[9] == 0x00 || skb->data[9] == 0xb0 || skb->data[9] == 0x40 || skb->data[9] == 0xd0 ) */
+ {
+ skb = dev_alloc_skb(u16len + sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ memcpy(skb_put(skb, u16len), pv_data->buff, u16len);
+
+ cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb, sizeof(*cb_hdr));
+ memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
+
+ cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
+
+ cb_hdr->hdr.it_present = cpu_to_le32(
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_TX_FLAGS));
+
+ cb_hdr->rate = 5; /* txrate->bitrate / 5; */
+
+
+ if (bStatus) {
+ /* success */
+ cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_RTS;
+ } else {
+ cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_FAIL;
+ }
+
+ skb->dev = wilc_wfi_mon;
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+ memset(skb->cb, 0, sizeof(skb->cb));
+
+ netif_rx(skb);
+ }
+
+ /* incase of fully hosting mode, the freeing will be done in response to the cfg packet */
+ kfree(pv_data->buff);
+
+ kfree(pv_data);
+
+}
+#endif /* WILC_FULLY_HOSTING_AP */
+
+/**
+ * @brief WILC_WFI_mon_setup
+ * @details
+ * @param[in]
+ * @return int : Return 0 on Success
+ * @author mdaftedar
+ * @date 12 JUL 2012
+ * @version 1.0
+ */
+static void WILC_WFI_mon_setup(struct net_device *dev)
+{
+
+ dev->netdev_ops = &wilc_wfi_netdev_ops;
+ /* dev->destructor = free_netdev; */
+ PRINT_INFO(CORECONFIG_DBG, "In Ethernet setup function\n");
+ ether_setup(dev);
+ dev->tx_queue_len = 0;
+ dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ memset(dev->dev_addr, 0, ETH_ALEN);
+
+ #ifdef USE_WIRELESS
+ {
+ /* u8 * mac_add; */
+ unsigned char mac_add[] = {0x00, 0x50, 0xc2, 0x5e, 0x10, 0x8f};
+ /* priv = wiphy_priv(priv->dev->ieee80211_ptr->wiphy); */
+ /* mac_add = (u8*)WILC_MALLOC(ETH_ALEN); */
+ /* status = host_int_get_MacAddress(priv->hWILCWFIDrv,mac_add); */
+ /* mac_add[ETH_ALEN-1]+=1; */
+ memcpy(dev->dev_addr, mac_add, ETH_ALEN);
+ }
+ #else
+ dev->dev_addr[0] = 0x12;
+ #endif
+
+}
+
+/**
+ * @brief WILC_WFI_init_mon_interface
+ * @details
+ * @param[in]
+ * @return int : Return 0 on Success
+ * @author mdaftedar
+ * @date 12 JUL 2012
+ * @version 1.0
+ */
+struct net_device *WILC_WFI_init_mon_interface(const char *name, struct net_device *real_dev)
+{
+
+
+ u32 ret = WILC_SUCCESS;
+ struct WILC_WFI_mon_priv *priv;
+
+ /*If monitor interface is already initialized, return it*/
+ if (wilc_wfi_mon) {
+ return wilc_wfi_mon;
+ }
+
+ wilc_wfi_mon = alloc_etherdev(sizeof(struct WILC_WFI_mon_priv));
+ if (!wilc_wfi_mon) {
+ PRINT_ER("failed to allocate memory\n");
+ return NULL;
+
+ }
+
+ wilc_wfi_mon->type = ARPHRD_IEEE80211_RADIOTAP;
+ strncpy(wilc_wfi_mon->name, name, IFNAMSIZ);
+ wilc_wfi_mon->name[IFNAMSIZ - 1] = 0;
+ wilc_wfi_mon->netdev_ops = &wilc_wfi_netdev_ops;
+
+ ret = register_netdevice(wilc_wfi_mon);
+ if (ret) {
+ PRINT_ER(" register_netdevice failed (%d)\n", ret);
+ return NULL;
+ }
+ priv = netdev_priv(wilc_wfi_mon);
+ if (priv == NULL) {
+ PRINT_ER("private structure is NULL\n");
+ return NULL;
+ }
+
+ priv->real_ndev = real_dev;
+
+ return wilc_wfi_mon;
+}
+
+/**
+ * @brief WILC_WFI_deinit_mon_interface
+ * @details
+ * @param[in]
+ * @return int : Return 0 on Success
+ * @author mdaftedar
+ * @date 12 JUL 2012
+ * @version 1.0
+ */
+int WILC_WFI_deinit_mon_interface()
+{
+ bool rollback_lock = false;
+
+ if (wilc_wfi_mon != NULL) {
+ PRINT_D(HOSTAPD_DBG, "In Deinit monitor interface\n");
+ PRINT_D(HOSTAPD_DBG, "RTNL is being locked\n");
+ if (rtnl_is_locked()) {
+ rtnl_unlock();
+ rollback_lock = true;
+ }
+ PRINT_D(HOSTAPD_DBG, "Unregister netdev\n");
+ unregister_netdev(wilc_wfi_mon);
+ /* free_netdev(wilc_wfi_mon); */
+
+ if (rollback_lock) {
+ rtnl_lock();
+ rollback_lock = false;
+ }
+ wilc_wfi_mon = NULL;
+ }
+ return WILC_SUCCESS;
+
+}
+#endif /* WILC_AP_EXTERNAL_MLME */
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