61500fbd77
Remove the commented codes using #if 0. Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
599 lines
16 KiB
C
599 lines
16 KiB
C
/*!
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* @file linux_mon.c
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* @brief File Operations OS wrapper functionality
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* @author mdaftedar
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* @sa wilc_wfi_netdevice.h
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* @date 01 MAR 2012
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* @version 1.0
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*/
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#ifndef SIMULATION
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#include "wilc_wfi_cfgoperations.h"
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#include "linux_wlan_common.h"
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#include "wilc_wlan_if.h"
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#include "wilc_wlan.h"
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#endif
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#ifdef WILC_FULLY_HOSTING_AP
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#include "wilc_host_ap.h"
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#endif
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#ifdef WILC_AP_EXTERNAL_MLME
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#ifdef SIMULATION
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#include "wilc_wfi_cfgoperations.h"
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#endif
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struct wilc_wfi_radiotap_hdr {
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struct ieee80211_radiotap_header hdr;
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u8 rate;
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/* u32 channel; */
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} __attribute__((packed));
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struct wilc_wfi_radiotap_cb_hdr {
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struct ieee80211_radiotap_header hdr;
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u8 rate;
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u8 dump;
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u16 tx_flags;
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/* u32 channel; */
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} __attribute__((packed));
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extern linux_wlan_t *g_linux_wlan;
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static struct net_device *wilc_wfi_mon; /* global monitor netdev */
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#ifdef SIMULATION
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extern int WILC_WFI_Tx(struct sk_buff *skb, struct net_device *dev);
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#elif USE_WIRELESS
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extern int mac_xmit(struct sk_buff *skb, struct net_device *dev);
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#endif
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u8 srcAdd[6];
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u8 bssid[6];
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u8 broadcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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/**
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* @brief WILC_WFI_monitor_rx
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* @details
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* @param[in]
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* @return int : Return 0 on Success
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* @author mdaftedar
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* @date 12 JUL 2012
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* @version 1.0
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*/
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#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
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#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive*/
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#define IS_MANAGMEMENT 0x100
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#define IS_MANAGMEMENT_CALLBACK 0x080
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#define IS_MGMT_STATUS_SUCCES 0x040
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#define GET_PKT_OFFSET(a) (((a) >> 22) & 0x1ff)
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void WILC_WFI_monitor_rx(uint8_t *buff, uint32_t size)
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{
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uint32_t header, pkt_offset;
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struct sk_buff *skb = NULL;
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struct wilc_wfi_radiotap_hdr *hdr;
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struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
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PRINT_INFO(HOSTAPD_DBG, "In monitor interface receive function\n");
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/* struct WILC_WFI_priv *priv = netdev_priv(dev); */
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/* priv = wiphy_priv(priv->dev->ieee80211_ptr->wiphy); */
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/* Bug 4601 */
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if (wilc_wfi_mon == NULL)
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return;
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if (!netif_running(wilc_wfi_mon)) {
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PRINT_INFO(HOSTAPD_DBG, "Monitor interface already RUNNING\n");
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return;
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}
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/* Get WILC header */
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memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET);
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/* The packet offset field conain info about what type of managment frame */
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/* we are dealing with and ack status */
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pkt_offset = GET_PKT_OFFSET(header);
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if (pkt_offset & IS_MANAGMEMENT_CALLBACK) {
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/* hostapd callback mgmt frame */
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skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_cb_hdr));
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if (skb == NULL) {
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PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
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return;
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}
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memcpy(skb_put(skb, size), buff, size);
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cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb, sizeof(*cb_hdr));
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memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
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cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
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cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
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cb_hdr->hdr.it_present = cpu_to_le32(
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(1 << IEEE80211_RADIOTAP_RATE) |
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(1 << IEEE80211_RADIOTAP_TX_FLAGS));
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cb_hdr->rate = 5; /* txrate->bitrate / 5; */
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if (pkt_offset & IS_MGMT_STATUS_SUCCES) {
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/* success */
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cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_RTS;
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} else {
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cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_FAIL;
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}
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} else {
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skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_hdr));
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if (skb == NULL) {
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PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
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return;
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}
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/* skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); */
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/* if (skb == NULL) */
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/* return; */
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memcpy(skb_put(skb, size), buff, size);
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hdr = (struct wilc_wfi_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
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memset(hdr, 0, sizeof(struct wilc_wfi_radiotap_hdr));
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hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
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/* hdr->hdr.it_pad = 0; */
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hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_hdr));
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PRINT_INFO(HOSTAPD_DBG, "Radiotap len %d\n", hdr->hdr.it_len);
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hdr->hdr.it_present = cpu_to_le32
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(1 << IEEE80211_RADIOTAP_RATE); /* | */
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/* (1 << IEEE80211_RADIOTAP_CHANNEL)); */
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PRINT_INFO(HOSTAPD_DBG, "Presentflags %d\n", hdr->hdr.it_present);
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hdr->rate = 5; /* txrate->bitrate / 5; */
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}
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/* if(INFO || if(skb->data[9] == 0x00 || skb->data[9] == 0xb0))
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* {
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* for(i=0;i<skb->len;i++)
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* PRINT_INFO(HOSTAPD_DBG,"Mon RxData[%d] = %02x\n",i,skb->data[i]);
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* }*/
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skb->dev = wilc_wfi_mon;
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skb_set_mac_header(skb, 0);
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skb->ip_summed = CHECKSUM_UNNECESSARY;
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skb->pkt_type = PACKET_OTHERHOST;
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skb->protocol = htons(ETH_P_802_2);
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memset(skb->cb, 0, sizeof(skb->cb));
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netif_rx(skb);
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}
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struct tx_complete_mon_data {
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int size;
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void *buff;
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};
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static void mgmt_tx_complete(void *priv, int status)
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{
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/* struct sk_buff *skb2; */
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/* struct wilc_wfi_radiotap_cb_hdr *cb_hdr; */
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struct tx_complete_mon_data *pv_data = (struct tx_complete_mon_data *)priv;
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u8 *buf = pv_data->buff;
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if (status == 1) {
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if (INFO || buf[0] == 0x10 || buf[0] == 0xb0)
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PRINT_INFO(HOSTAPD_DBG, "Packet sent successfully - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
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} else {
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PRINT_INFO(HOSTAPD_DBG, "Couldn't send packet - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
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}
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/* //(skb->data[9] == 0x00 || skb->data[9] == 0xb0 || skb->data[9] == 0x40 || skb->data[9] == 0xd0 )
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* {
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* skb2 = dev_alloc_skb(pv_data->size+sizeof(struct wilc_wfi_radiotap_cb_hdr));
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*
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* memcpy(skb_put(skb2,pv_data->size),pv_data->buff, pv_data->size);
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*
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* cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb2, sizeof(*cb_hdr));
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* memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
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*
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* cb_hdr->hdr.it_version = 0;//PKTHDR_RADIOTAP_VERSION;
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*
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* cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
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*
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* cb_hdr->hdr.it_present = cpu_to_le32(
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* (1 << IEEE80211_RADIOTAP_RATE) |
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* (1 << IEEE80211_RADIOTAP_TX_FLAGS));
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*
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* cb_hdr->rate = 5;//txrate->bitrate / 5;
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* cb_hdr->tx_flags = 0x0004;
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*
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* skb2->dev = wilc_wfi_mon;
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* skb_set_mac_header(skb2, 0);
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* skb2->ip_summed = CHECKSUM_UNNECESSARY;
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* skb2->pkt_type = PACKET_OTHERHOST;
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* skb2->protocol = htons(ETH_P_802_2);
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* memset(skb2->cb, 0, sizeof(skb2->cb));
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*
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* netif_rx(skb2);
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* }*/
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/* incase of fully hosting mode, the freeing will be done in response to the cfg packet */
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#ifndef WILC_FULLY_HOSTING_AP
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kfree(pv_data->buff);
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kfree(pv_data);
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#endif
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}
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static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
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{
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linux_wlan_t *nic;
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struct tx_complete_mon_data *mgmt_tx = NULL;
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if (dev == NULL) {
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PRINT_D(HOSTAPD_DBG, "ERROR: dev == NULL\n");
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return WILC_FAIL;
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}
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nic = netdev_priv(dev);
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netif_stop_queue(dev);
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mgmt_tx = kmalloc(sizeof(struct tx_complete_mon_data), GFP_ATOMIC);
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if (mgmt_tx == NULL) {
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PRINT_ER("Failed to allocate memory for mgmt_tx structure\n");
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return WILC_FAIL;
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}
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#ifdef WILC_FULLY_HOSTING_AP
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/* add space for the pointer to tx_complete_mon_data */
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len += sizeof(struct tx_complete_mon_data *);
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#endif
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mgmt_tx->buff = kmalloc(len, GFP_ATOMIC);
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if (mgmt_tx->buff == NULL) {
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PRINT_ER("Failed to allocate memory for mgmt_tx buff\n");
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return WILC_FAIL;
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}
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mgmt_tx->size = len;
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#ifndef WILC_FULLY_HOSTING_AP
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memcpy(mgmt_tx->buff, buf, len);
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#else
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memcpy(mgmt_tx->buff, buf, len - sizeof(struct tx_complete_mon_data *));
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memcpy((mgmt_tx->buff) + (len - sizeof(struct tx_complete_mon_data *)), &mgmt_tx, sizeof(struct tx_complete_mon_data *));
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/* filter data frames to handle it's PS */
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if (filter_monitor_data_frames((mgmt_tx->buff), len) == true) {
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return;
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}
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#endif /* WILC_FULLY_HOSTING_AP */
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g_linux_wlan->oup.wlan_add_mgmt_to_tx_que(mgmt_tx, mgmt_tx->buff, mgmt_tx->size, mgmt_tx_complete);
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netif_wake_queue(dev);
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return 0;
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}
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/**
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* @brief WILC_WFI_mon_xmit
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* @details
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* @param[in]
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* @return int : Return 0 on Success
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* @author mdaftedar
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* @date 12 JUL 2012
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* @version 1.0
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*/
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static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
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struct net_device *dev)
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{
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struct ieee80211_radiotap_header *rtap_hdr;
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u32 rtap_len, i, ret = 0;
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struct WILC_WFI_mon_priv *mon_priv;
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struct sk_buff *skb2;
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struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
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/* Bug 4601 */
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if (wilc_wfi_mon == NULL)
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return WILC_FAIL;
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/* if(skb->data[3] == 0x10 || skb->data[3] == 0xb0) */
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mon_priv = netdev_priv(wilc_wfi_mon);
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if (mon_priv == NULL) {
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PRINT_ER("Monitor interface private structure is NULL\n");
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return WILC_FAIL;
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}
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rtap_hdr = (struct ieee80211_radiotap_header *)skb->data;
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rtap_len = ieee80211_get_radiotap_len(skb->data);
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if (skb->len < rtap_len) {
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PRINT_ER("Error in radiotap header\n");
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return -1;
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}
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/* skip the radiotap header */
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PRINT_INFO(HOSTAPD_DBG, "Radiotap len: %d\n", rtap_len);
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if (INFO) {
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for (i = 0; i < rtap_len; i++)
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PRINT_INFO(HOSTAPD_DBG, "Radiotap_hdr[%d] %02x\n", i, skb->data[i]);
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}
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/* Skip the ratio tap header */
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skb_pull(skb, rtap_len);
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if (skb->data[0] == 0xc0)
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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]);
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if (skb->data[0] == 0xc0 && (!(memcmp(broadcast, &skb->data[4], 6)))) {
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skb2 = dev_alloc_skb(skb->len + sizeof(struct wilc_wfi_radiotap_cb_hdr));
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memcpy(skb_put(skb2, skb->len), skb->data, skb->len);
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cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb2, sizeof(*cb_hdr));
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memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
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cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
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cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
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cb_hdr->hdr.it_present = cpu_to_le32(
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(1 << IEEE80211_RADIOTAP_RATE) |
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(1 << IEEE80211_RADIOTAP_TX_FLAGS));
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cb_hdr->rate = 5; /* txrate->bitrate / 5; */
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cb_hdr->tx_flags = 0x0004;
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skb2->dev = wilc_wfi_mon;
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skb_set_mac_header(skb2, 0);
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skb2->ip_summed = CHECKSUM_UNNECESSARY;
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skb2->pkt_type = PACKET_OTHERHOST;
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skb2->protocol = htons(ETH_P_802_2);
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memset(skb2->cb, 0, sizeof(skb2->cb));
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netif_rx(skb2);
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return 0;
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}
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skb->dev = mon_priv->real_ndev;
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PRINT_INFO(HOSTAPD_DBG, "Skipping the radiotap header\n");
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/* actual deliver of data is device-specific, and not shown here */
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PRINT_INFO(HOSTAPD_DBG, "SKB netdevice name = %s\n", skb->dev->name);
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PRINT_INFO(HOSTAPD_DBG, "MONITOR real dev name = %s\n", mon_priv->real_ndev->name);
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#ifdef SIMULATION
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ret = WILC_WFI_Tx(skb, mon_priv->real_ndev);
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#elif USE_WIRELESS
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/* Identify if Ethernet or MAC header (data or mgmt) */
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memcpy(srcAdd, &skb->data[10], 6);
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memcpy(bssid, &skb->data[16], 6);
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/* if source address and bssid fields are equal>>Mac header */
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/*send it to mgmt frames handler */
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if (!(memcmp(srcAdd, bssid, 6))) {
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mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
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dev_kfree_skb(skb);
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} else
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ret = mac_xmit(skb, mon_priv->real_ndev);
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#endif
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/* return NETDEV_TX_OK; */
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return ret;
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}
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static const struct net_device_ops wilc_wfi_netdev_ops = {
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.ndo_start_xmit = WILC_WFI_mon_xmit,
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};
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#ifdef WILC_FULLY_HOSTING_AP
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/*
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* @brief WILC_mgm_HOSTAPD_ACK
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* @details report the status of transmitted mgmt frames to HOSTAPD
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* @param[in] priv : pointer to tx_complete_mon_data struct
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* bStatus : status of transmission
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* @author Abd Al-Rahman Diab
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* @date 9 May 2013
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* @version 1.0
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*/
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void WILC_mgm_HOSTAPD_ACK(void *priv, bool bStatus)
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{
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struct sk_buff *skb;
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struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
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struct tx_complete_mon_data *pv_data = (struct tx_complete_mon_data *)priv;
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u8 *buf = pv_data->buff;
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/* len of the original frame without the added pointer at the tail */
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u16 u16len = (pv_data->size) - sizeof(struct tx_complete_mon_data *);
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/*if(bStatus == 1){
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* if(INFO || buf[0] == 0x10 || buf[0] == 0xb0)
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* PRINT_D(HOSTAPD_DBG,"Packet sent successfully - Size = %d - Address = %p.\n",u16len,pv_data->buff);
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* }else{
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* PRINT_D(HOSTAPD_DBG,"Couldn't send packet - Size = %d - Address = %p.\n",u16len,pv_data->buff);
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* }
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*/
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/* (skb->data[9] == 0x00 || skb->data[9] == 0xb0 || skb->data[9] == 0x40 || skb->data[9] == 0xd0 ) */
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{
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skb = dev_alloc_skb(u16len + sizeof(struct wilc_wfi_radiotap_cb_hdr));
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memcpy(skb_put(skb, u16len), pv_data->buff, u16len);
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cb_hdr = (struct wilc_wfi_radiotap_cb_hdr *) skb_push(skb, sizeof(*cb_hdr));
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memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
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cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
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cb_hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_cb_hdr));
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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 */
|