--- /dev/null
+/* IEEE 802.11 SoftMAC layer
+ * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
+ *
+ * Mostly extracted from the rtl8180-sa2400 driver for the
+ * in-kernel generic ieee802.11 stack.
+ *
+ * Few lines might be stolen from other part of the rtllib
+ * stack. Copyright who own it's copyright
+ *
+ * WPA code stolen from the ipw2200 driver.
+ * Copyright who own it's copyright.
+ *
+ * released under the GPL
+ */
+
+
+#include "rtllib.h"
+
+#include <linux/random.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/etherdevice.h>
+#include "dot11d.h"
+
+short rtllib_is_54g(struct rtllib_network *net)
+{
+ return (net->rates_ex_len > 0) || (net->rates_len > 4);
+}
+
+short rtllib_is_shortslot(const struct rtllib_network *net)
+{
+ return net->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME;
+}
+
+/* returns the total length needed for placing the RATE MFIE
+ * tag and the EXTENDED RATE MFIE tag if needed.
+ * It encludes two bytes per tag for the tag itself and its len
+ */
+static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
+{
+ unsigned int rate_len = 0;
+
+ if (ieee->modulation & RTLLIB_CCK_MODULATION)
+ rate_len = RTLLIB_CCK_RATE_LEN + 2;
+
+ if (ieee->modulation & RTLLIB_OFDM_MODULATION)
+
+ rate_len += RTLLIB_OFDM_RATE_LEN + 2;
+
+ return rate_len;
+}
+
+/* place the MFIE rate, tag to the memory (double) pointed.
+ * Then it updates the pointer so that
+ * it points after the new MFIE tag added.
+ */
+static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
+{
+ u8 *tag = *tag_p;
+
+ if (ieee->modulation & RTLLIB_CCK_MODULATION) {
+ *tag++ = MFIE_TYPE_RATES;
+ *tag++ = 4;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
+ }
+
+ /* We may add an option for custom rates that specific HW
+ * might support
+ */
+ *tag_p = tag;
+}
+
+static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
+{
+ u8 *tag = *tag_p;
+
+ if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
+ *tag++ = MFIE_TYPE_RATES_EX;
+ *tag++ = 8;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
+ *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
+ }
+ /* We may add an option for custom rates that specific HW might
+ * support
+ */
+ *tag_p = tag;
+}
+
+static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
+{
+ u8 *tag = *tag_p;
+
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = 7;
+ *tag++ = 0x00;
+ *tag++ = 0x50;
+ *tag++ = 0xf2;
+ *tag++ = 0x02;
+ *tag++ = 0x00;
+ *tag++ = 0x01;
+ *tag++ = MAX_SP_Len;
+ *tag_p = tag;
+}
+
+void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
+{
+ u8 *tag = *tag_p;
+
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = 7;
+ *tag++ = 0x00;
+ *tag++ = 0xe0;
+ *tag++ = 0x4c;
+ *tag++ = 0x01;
+ *tag++ = 0x02;
+ *tag++ = 0x11;
+ *tag++ = 0x00;
+
+ *tag_p = tag;
+ netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
+}
+
+static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
+{
+ int nh;
+
+ nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
+
+/* if the queue is full but we have newer frames then
+ * just overwrites the oldest.
+ *
+ * if (nh == ieee->mgmt_queue_tail)
+ * return -1;
+ */
+ ieee->mgmt_queue_head = nh;
+ ieee->mgmt_queue_ring[nh] = skb;
+
+}
+
+static struct sk_buff *dequeue_mgmt(struct rtllib_device *ieee)
+{
+ struct sk_buff *ret;
+
+ if (ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
+ return NULL;
+
+ ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
+
+ ieee->mgmt_queue_tail =
+ (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
+
+ return ret;
+}
+
+static void init_mgmt_queue(struct rtllib_device *ieee)
+{
+ ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
+}
+
+
+u8
+MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
+{
+ u16 i;
+ u8 QueryRate = 0;
+ u8 BasicRate;
+
+
+ for (i = 0; i < ieee->current_network.rates_len; i++) {
+ BasicRate = ieee->current_network.rates[i]&0x7F;
+ if (!rtllib_is_cck_rate(BasicRate)) {
+ if (QueryRate == 0) {
+ QueryRate = BasicRate;
+ } else {
+ if (BasicRate < QueryRate)
+ QueryRate = BasicRate;
+ }
+ }
+ }
+
+ if (QueryRate == 0) {
+ QueryRate = 12;
+ netdev_info(ieee->dev, "No BasicRate found!!\n");
+ }
+ return QueryRate;
+}
+
+static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
+{
+ struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
+ u8 rate;
+
+ if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
+ rate = 0x0c;
+ else
+ rate = ieee->basic_rate & 0x7f;
+
+ if (rate == 0) {
+ if (ieee->mode == IEEE_A ||
+ ieee->mode == IEEE_N_5G ||
+ (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
+ rate = 0x0c;
+ else
+ rate = 0x02;
+ }
+
+ return rate;
+}
+
+inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
+{
+ unsigned long flags;
+ short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
+ struct rtllib_hdr_3addr *header =
+ (struct rtllib_hdr_3addr *) skb->data;
+
+ struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ /* called with 2nd param 0, no mgmt lock required */
+ rtllib_sta_wakeup(ieee, 0);
+
+ if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
+ tcb_desc->queue_index = BEACON_QUEUE;
+ else
+ tcb_desc->queue_index = MGNT_QUEUE;
+
+ if (ieee->disable_mgnt_queue)
+ tcb_desc->queue_index = HIGH_QUEUE;
+
+ tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
+ tcb_desc->RATRIndex = 7;
+ tcb_desc->bTxDisableRateFallBack = 1;
+ tcb_desc->bTxUseDriverAssingedRate = 1;
+ if (single) {
+ if (ieee->queue_stop) {
+ enqueue_mgmt(ieee, skb);
+ } else {
+ header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+
+ /* avoid watchdog triggers */
+ ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
+ ieee->basic_rate);
+ }
+
+ spin_unlock_irqrestore(&ieee->lock, flags);
+ } else {
+ spin_unlock_irqrestore(&ieee->lock, flags);
+ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
+
+ header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+
+ /* check whether the managed packet queued greater than 5 */
+ if (!ieee->check_nic_enough_desc(ieee->dev, tcb_desc->queue_index) ||
+ (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0) ||
+ (ieee->queue_stop)) {
+ /* insert the skb packet to the management queue
+ *
+ * as for the completion function, it does not need
+ * to check it any more.
+ */
+ netdev_info(ieee->dev,
+ "%s():insert to waitqueue, queue_index:%d!\n",
+ __func__, tcb_desc->queue_index);
+ skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
+ skb);
+ } else {
+ ieee->softmac_hard_start_xmit(skb, ieee->dev);
+ }
+ spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
+ }
+}
+
+inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
+ struct rtllib_device *ieee)
+{
+ short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
+ struct rtllib_hdr_3addr *header =
+ (struct rtllib_hdr_3addr *) skb->data;
+ u16 fc, type, stype;
+ struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
+
+ fc = le16_to_cpu(header->frame_ctl);
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+
+ if (stype != RTLLIB_STYPE_PSPOLL)
+ tcb_desc->queue_index = MGNT_QUEUE;
+ else
+ tcb_desc->queue_index = HIGH_QUEUE;
+
+ if (ieee->disable_mgnt_queue)
+ tcb_desc->queue_index = HIGH_QUEUE;
+
+
+ tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
+ tcb_desc->RATRIndex = 7;
+ tcb_desc->bTxDisableRateFallBack = 1;
+ tcb_desc->bTxUseDriverAssingedRate = 1;
+ if (single) {
+ if (type != RTLLIB_FTYPE_CTL) {
+ header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+
+ }
+ /* avoid watchdog triggers */
+ ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
+ ieee->basic_rate);
+
+ } else {
+ if (type != RTLLIB_FTYPE_CTL) {
+ header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+ }
+ ieee->softmac_hard_start_xmit(skb, ieee->dev);
+
+ }
+}
+
+static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
+{
+ unsigned int len, rate_len;
+ u8 *tag;
+ struct sk_buff *skb;
+ struct rtllib_probe_request *req;
+
+ len = ieee->current_network.ssid_len;
+
+ rate_len = rtllib_MFIE_rate_len(ieee);
+
+ skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
+ 2 + len + rate_len + ieee->tx_headroom);
+
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ req = (struct rtllib_probe_request *) skb_put(skb,
+ sizeof(struct rtllib_probe_request));
+ req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
+ req->header.duration_id = 0;
+
+ memset(req->header.addr1, 0xff, ETH_ALEN);
+ memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memset(req->header.addr3, 0xff, ETH_ALEN);
+
+ tag = (u8 *) skb_put(skb, len + 2 + rate_len);
+
+ *tag++ = MFIE_TYPE_SSID;
+ *tag++ = len;
+ memcpy(tag, ieee->current_network.ssid, len);
+ tag += len;
+
+ rtllib_MFIE_Brate(ieee, &tag);
+ rtllib_MFIE_Grate(ieee, &tag);
+
+ return skb;
+}
+
+struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
+
+static void rtllib_send_beacon(struct rtllib_device *ieee)
+{
+ struct sk_buff *skb;
+
+ if (!ieee->ieee_up)
+ return;
+ skb = rtllib_get_beacon_(ieee);
+
+ if (skb) {
+ softmac_mgmt_xmit(skb, ieee);
+ ieee->softmac_stats.tx_beacons++;
+ }
+
+ if (ieee->beacon_txing && ieee->ieee_up)
+ mod_timer(&ieee->beacon_timer, jiffies +
+ (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
+}
+
+
+static void rtllib_send_beacon_cb(unsigned long _ieee)
+{
+ struct rtllib_device *ieee =
+ (struct rtllib_device *) _ieee;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->beacon_lock, flags);
+ rtllib_send_beacon(ieee);
+ spin_unlock_irqrestore(&ieee->beacon_lock, flags);
+}
+
+/* Enables network monitor mode, all rx packets will be received. */
+void rtllib_EnableNetMonitorMode(struct net_device *dev,
+ bool bInitState)
+{
+ struct rtllib_device *ieee = netdev_priv_rsl(dev);
+
+ netdev_info(dev, "========>Enter Monitor Mode\n");
+
+ ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
+}
+
+
+/* Disables network monitor mode. Only packets destinated to
+ * us will be received.
+ */
+void rtllib_DisableNetMonitorMode(struct net_device *dev,
+ bool bInitState)
+{
+ struct rtllib_device *ieee = netdev_priv_rsl(dev);
+
+ netdev_info(dev, "========>Exit Monitor Mode\n");
+
+ ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
+}
+
+
+/* Enables the specialized promiscuous mode required by Intel.
+ * In this mode, Intel intends to hear traffics from/to other STAs in the
+ * same BSS. Therefore we don't have to disable checking BSSID and we only need
+ * to allow all dest. BUT: if we enable checking BSSID then we can't recv
+ * packets from other STA.
+ */
+void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
+ bool bInitState)
+{
+ bool bFilterOutNonAssociatedBSSID = false;
+
+ struct rtllib_device *ieee = netdev_priv_rsl(dev);
+
+ netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
+
+ ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
+ ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
+ (u8 *)&bFilterOutNonAssociatedBSSID);
+
+ ieee->bNetPromiscuousMode = true;
+}
+EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
+
+
+/* Disables the specialized promiscuous mode required by Intel.
+ * See MgntEnableIntelPromiscuousMode for detail.
+ */
+void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
+ bool bInitState)
+{
+ bool bFilterOutNonAssociatedBSSID = true;
+
+ struct rtllib_device *ieee = netdev_priv_rsl(dev);
+
+ netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
+
+ ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
+ ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
+ (u8 *)&bFilterOutNonAssociatedBSSID);
+
+ ieee->bNetPromiscuousMode = false;
+}
+EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
+
+static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
+{
+ struct sk_buff *skb;
+
+ skb = rtllib_probe_req(ieee);
+ if (skb) {
+ softmac_mgmt_xmit(skb, ieee);
+ ieee->softmac_stats.tx_probe_rq++;
+ }
+}
+
+
+void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
+{
+ if (ieee->active_scan && (ieee->softmac_features &
+ IEEE_SOFTMAC_PROBERQ)) {
+ rtllib_send_probe(ieee, 0);
+ rtllib_send_probe(ieee, 0);
+ }
+}
+
+static void rtllib_softmac_hint11d_wq(void *data)
+{
+}
+
+void rtllib_update_active_chan_map(struct rtllib_device *ieee)
+{
+ memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
+ MAX_CHANNEL_NUMBER+1);
+}
+
+/* this performs syncro scan blocking the caller until all channels
+ * in the allowed channel map has been checked.
+ */
+void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
+{
+ union iwreq_data wrqu;
+ short ch = 0;
+
+ rtllib_update_active_chan_map(ieee);
+
+ ieee->be_scan_inprogress = true;
+
+ down(&ieee->scan_sem);
+
+ while (1) {
+ do {
+ ch++;
+ if (ch > MAX_CHANNEL_NUMBER)
+ goto out; /* scan completed */
+ } while (!ieee->active_channel_map[ch]);
+
+ /* this function can be called in two situations
+ * 1- We have switched to ad-hoc mode and we are
+ * performing a complete syncro scan before conclude
+ * there are no interesting cell and to create a
+ * new one. In this case the link state is
+ * RTLLIB_NOLINK until we found an interesting cell.
+ * If so the ieee8021_new_net, called by the RX path
+ * will set the state to RTLLIB_LINKED, so we stop
+ * scanning
+ * 2- We are linked and the root uses run iwlist scan.
+ * So we switch to RTLLIB_LINKED_SCANNING to remember
+ * that we are still logically linked (not interested in
+ * new network events, despite for updating the net list,
+ * but we are temporarly 'unlinked' as the driver shall
+ * not filter RX frames and the channel is changing.
+ * So the only situation in which are interested is to check
+ * if the state become LINKED because of the #1 situation
+ */
+
+ if (ieee->state == RTLLIB_LINKED)
+ goto out;
+ if (ieee->sync_scan_hurryup) {
+ netdev_info(ieee->dev,
+ "============>sync_scan_hurryup out\n");
+ goto out;
+ }
+
+ ieee->set_chan(ieee->dev, ch);
+ if (ieee->active_channel_map[ch] == 1)
+ rtllib_send_probe_requests(ieee, 0);
+
+ /* this prevent excessive time wait when we
+ * need to wait for a syncro scan to end..
+ */
+ msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
+ }
+out:
+ ieee->actscanning = false;
+ ieee->sync_scan_hurryup = 0;
+
+ if (ieee->state >= RTLLIB_LINKED) {
+ if (IS_DOT11D_ENABLE(ieee))
+ DOT11D_ScanComplete(ieee);
+ }
+ up(&ieee->scan_sem);
+
+ ieee->be_scan_inprogress = false;
+
+ memset(&wrqu, 0, sizeof(wrqu));
+ wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
+}
+
+static void rtllib_softmac_scan_wq(void *data)
+{
+ struct rtllib_device *ieee = container_of_dwork_rsl(data,
+ struct rtllib_device, softmac_scan_wq);
+ u8 last_channel = ieee->current_network.channel;
+
+ rtllib_update_active_chan_map(ieee);
+
+ if (!ieee->ieee_up)
+ return;
+ if (rtllib_act_scanning(ieee, true))
+ return;
+
+ down(&ieee->scan_sem);
+
+ if (ieee->eRFPowerState == eRfOff) {
+ netdev_info(ieee->dev,
+ "======>%s():rf state is eRfOff, return\n",
+ __func__);
+ goto out1;
+ }
+
+ do {
+ ieee->current_network.channel =
+ (ieee->current_network.channel + 1) %
+ MAX_CHANNEL_NUMBER;
+ if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
+ if (!ieee->active_channel_map[ieee->current_network.channel])
+ ieee->current_network.channel = 6;
+ goto out; /* no good chans */
+ }
+ } while (!ieee->active_channel_map[ieee->current_network.channel]);
+
+ if (ieee->scanning_continue == 0)
+ goto out;
+
+ ieee->set_chan(ieee->dev, ieee->current_network.channel);
+
+ if (ieee->active_channel_map[ieee->current_network.channel] == 1)
+ rtllib_send_probe_requests(ieee, 0);
+
+ queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq,
+ msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
+
+ up(&ieee->scan_sem);
+ return;
+
+out:
+ if (IS_DOT11D_ENABLE(ieee))
+ DOT11D_ScanComplete(ieee);
+ ieee->current_network.channel = last_channel;
+
+out1:
+ ieee->actscanning = false;
+ ieee->scan_watch_dog = 0;
+ ieee->scanning_continue = 0;
+ up(&ieee->scan_sem);
+}
+
+
+
+static void rtllib_beacons_start(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->beacon_lock, flags);
+
+ ieee->beacon_txing = 1;
+ rtllib_send_beacon(ieee);
+
+ spin_unlock_irqrestore(&ieee->beacon_lock, flags);
+}
+
+static void rtllib_beacons_stop(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->beacon_lock, flags);
+
+ ieee->beacon_txing = 0;
+ del_timer_sync(&ieee->beacon_timer);
+
+ spin_unlock_irqrestore(&ieee->beacon_lock, flags);
+
+}
+
+
+void rtllib_stop_send_beacons(struct rtllib_device *ieee)
+{
+ if (ieee->stop_send_beacons)
+ ieee->stop_send_beacons(ieee->dev);
+ if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
+ rtllib_beacons_stop(ieee);
+}
+EXPORT_SYMBOL(rtllib_stop_send_beacons);
+
+
+void rtllib_start_send_beacons(struct rtllib_device *ieee)
+{
+ if (ieee->start_send_beacons)
+ ieee->start_send_beacons(ieee->dev);
+ if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
+ rtllib_beacons_start(ieee);
+}
+EXPORT_SYMBOL(rtllib_start_send_beacons);
+
+
+static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
+{
+ down(&ieee->scan_sem);
+ ieee->scan_watch_dog = 0;
+ if (ieee->scanning_continue == 1) {
+ ieee->scanning_continue = 0;
+ ieee->actscanning = false;
+
+ cancel_delayed_work(&ieee->softmac_scan_wq);
+ }
+
+ up(&ieee->scan_sem);
+}
+
+void rtllib_stop_scan(struct rtllib_device *ieee)
+{
+ if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
+ rtllib_softmac_stop_scan(ieee);
+ } else {
+ if (ieee->rtllib_stop_hw_scan)
+ ieee->rtllib_stop_hw_scan(ieee->dev);
+ }
+}
+EXPORT_SYMBOL(rtllib_stop_scan);
+
+void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
+{
+ if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
+ ieee->sync_scan_hurryup = 1;
+ } else {
+ if (ieee->rtllib_stop_hw_scan)
+ ieee->rtllib_stop_hw_scan(ieee->dev);
+ }
+}
+EXPORT_SYMBOL(rtllib_stop_scan_syncro);
+
+bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
+{
+ if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
+ if (sync_scan)
+ return ieee->be_scan_inprogress;
+ else
+ return ieee->actscanning || ieee->be_scan_inprogress;
+ } else {
+ return test_bit(STATUS_SCANNING, &ieee->status);
+ }
+}
+EXPORT_SYMBOL(rtllib_act_scanning);
+
+/* called with ieee->lock held */
+static void rtllib_start_scan(struct rtllib_device *ieee)
+{
+ RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
+ if (ieee->rtllib_ips_leave_wq != NULL)
+ ieee->rtllib_ips_leave_wq(ieee->dev);
+
+ if (IS_DOT11D_ENABLE(ieee)) {
+ if (IS_COUNTRY_IE_VALID(ieee))
+ RESET_CIE_WATCHDOG(ieee);
+ }
+ if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
+ if (ieee->scanning_continue == 0) {
+ ieee->actscanning = true;
+ ieee->scanning_continue = 1;
+ queue_delayed_work_rsl(ieee->wq,
+ &ieee->softmac_scan_wq, 0);
+ }
+ } else {
+ if (ieee->rtllib_start_hw_scan)
+ ieee->rtllib_start_hw_scan(ieee->dev);
+ }
+}
+
+/* called with wx_sem held */
+void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
+{
+ if (IS_DOT11D_ENABLE(ieee)) {
+ if (IS_COUNTRY_IE_VALID(ieee))
+ RESET_CIE_WATCHDOG(ieee);
+ }
+ ieee->sync_scan_hurryup = 0;
+ if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
+ rtllib_softmac_scan_syncro(ieee, is_mesh);
+ } else {
+ if (ieee->rtllib_start_hw_scan)
+ ieee->rtllib_start_hw_scan(ieee->dev);
+ }
+}
+EXPORT_SYMBOL(rtllib_start_scan_syncro);
+
+inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
+ struct rtllib_device *ieee, int challengelen, u8 *daddr)
+{
+ struct sk_buff *skb;
+ struct rtllib_authentication *auth;
+ int len = 0;
+
+ len = sizeof(struct rtllib_authentication) + challengelen +
+ ieee->tx_headroom + 4;
+ skb = dev_alloc_skb(len);
+
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ auth = (struct rtllib_authentication *)
+ skb_put(skb, sizeof(struct rtllib_authentication));
+
+ auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
+ if (challengelen)
+ auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
+
+ auth->header.duration_id = cpu_to_le16(0x013a);
+ memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
+ memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
+ if (ieee->auth_mode == 0)
+ auth->algorithm = WLAN_AUTH_OPEN;
+ else if (ieee->auth_mode == 1)
+ auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
+ else if (ieee->auth_mode == 2)
+ auth->algorithm = WLAN_AUTH_OPEN;
+ auth->transaction = cpu_to_le16(ieee->associate_seq);
+ ieee->associate_seq++;
+
+ auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
+
+ return skb;
+}
+
+static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
+{
+ u8 *tag;
+ int beacon_size;
+ struct rtllib_probe_response *beacon_buf;
+ struct sk_buff *skb = NULL;
+ int encrypt;
+ int atim_len, erp_len;
+ struct lib80211_crypt_data *crypt;
+
+ char *ssid = ieee->current_network.ssid;
+ int ssid_len = ieee->current_network.ssid_len;
+ int rate_len = ieee->current_network.rates_len+2;
+ int rate_ex_len = ieee->current_network.rates_ex_len;
+ int wpa_ie_len = ieee->wpa_ie_len;
+ u8 erpinfo_content = 0;
+
+ u8 *tmp_ht_cap_buf = NULL;
+ u8 tmp_ht_cap_len = 0;
+ u8 *tmp_ht_info_buf = NULL;
+ u8 tmp_ht_info_len = 0;
+ struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
+ u8 *tmp_generic_ie_buf = NULL;
+ u8 tmp_generic_ie_len = 0;
+
+ if (rate_ex_len > 0)
+ rate_ex_len += 2;
+
+ if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
+ atim_len = 4;
+ else
+ atim_len = 0;
+
+ if ((ieee->current_network.mode == IEEE_G) ||
+ (ieee->current_network.mode == IEEE_N_24G &&
+ ieee->pHTInfo->bCurSuppCCK)) {
+ erp_len = 3;
+ erpinfo_content = 0;
+ if (ieee->current_network.buseprotection)
+ erpinfo_content |= ERP_UseProtection;
+ } else
+ erp_len = 0;
+
+ crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
+ encrypt = ieee->host_encrypt && crypt && crypt->ops &&
+ ((0 == strcmp(crypt->ops->name, "R-WEP") || wpa_ie_len));
+ if (ieee->pHTInfo->bCurrentHTSupport) {
+ tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
+ tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
+ tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
+ tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
+ HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
+ &tmp_ht_cap_len, encrypt, false);
+ HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
+ encrypt);
+
+ if (pHTInfo->bRegRT2RTAggregation) {
+ tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
+ tmp_generic_ie_len =
+ sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
+ HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
+ &tmp_generic_ie_len);
+ }
+ }
+
+ beacon_size = sizeof(struct rtllib_probe_response)+2+
+ ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
+ + wpa_ie_len + ieee->tx_headroom;
+ skb = dev_alloc_skb(beacon_size);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
+ (beacon_size - ieee->tx_headroom));
+ memcpy(beacon_buf->header.addr1, dest, ETH_ALEN);
+ memcpy(beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
+
+ beacon_buf->header.duration_id = 0;
+ beacon_buf->beacon_interval =
+ cpu_to_le16(ieee->current_network.beacon_interval);
+ beacon_buf->capability =
+ cpu_to_le16(ieee->current_network.capability &
+ WLAN_CAPABILITY_IBSS);
+ beacon_buf->capability |=
+ cpu_to_le16(ieee->current_network.capability &
+ WLAN_CAPABILITY_SHORT_PREAMBLE);
+
+ if (ieee->short_slot && (ieee->current_network.capability &
+ WLAN_CAPABILITY_SHORT_SLOT_TIME))
+ beacon_buf->capability |=
+ cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
+
+ crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
+ if (encrypt)
+ beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
+
+
+ beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
+ beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
+ beacon_buf->info_element[0].len = ssid_len;
+
+ tag = (u8 *) beacon_buf->info_element[0].data;
+
+ memcpy(tag, ssid, ssid_len);
+
+ tag += ssid_len;
+
+ *(tag++) = MFIE_TYPE_RATES;
+ *(tag++) = rate_len-2;
+ memcpy(tag, ieee->current_network.rates, rate_len-2);
+ tag += rate_len-2;
+
+ *(tag++) = MFIE_TYPE_DS_SET;
+ *(tag++) = 1;
+ *(tag++) = ieee->current_network.channel;
+
+ if (atim_len) {
+ u16 val16;
+ *(tag++) = MFIE_TYPE_IBSS_SET;
+ *(tag++) = 2;
+ val16 = ieee->current_network.atim_window;
+ memcpy((u8 *)tag, (u8 *)&val16, 2);
+ tag += 2;
+ }
+
+ if (erp_len) {
+ *(tag++) = MFIE_TYPE_ERP;
+ *(tag++) = 1;
+ *(tag++) = erpinfo_content;
+ }
+ if (rate_ex_len) {
+ *(tag++) = MFIE_TYPE_RATES_EX;
+ *(tag++) = rate_ex_len-2;
+ memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
+ tag += rate_ex_len-2;
+ }
+
+ if (wpa_ie_len) {
+ if (ieee->iw_mode == IW_MODE_ADHOC)
+ memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
+ memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
+ tag += ieee->wpa_ie_len;
+ }
+ return skb;
+}
+
+static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
+{
+ struct sk_buff *skb;
+ u8 *tag;
+
+ struct lib80211_crypt_data *crypt;
+ struct rtllib_assoc_response_frame *assoc;
+ short encrypt;
+
+ unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
+ int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
+ ieee->tx_headroom;
+
+ skb = dev_alloc_skb(len);
+
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ assoc = (struct rtllib_assoc_response_frame *)
+ skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
+
+ assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
+ memcpy(assoc->header.addr1, dest, ETH_ALEN);
+ memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
+ WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
+
+
+ if (ieee->short_slot)
+ assoc->capability |=
+ cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
+
+ if (ieee->host_encrypt)
+ crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
+ else
+ crypt = NULL;
+
+ encrypt = (crypt && crypt->ops);
+
+ if (encrypt)
+ assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
+
+ assoc->status = 0;
+ assoc->aid = cpu_to_le16(ieee->assoc_id);
+ if (ieee->assoc_id == 0x2007)
+ ieee->assoc_id = 0;
+ else
+ ieee->assoc_id++;
+
+ tag = (u8 *) skb_put(skb, rate_len);
+ rtllib_MFIE_Brate(ieee, &tag);
+ rtllib_MFIE_Grate(ieee, &tag);
+
+ return skb;
+}
+
+static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
+ u8 *dest)
+{
+ struct sk_buff *skb = NULL;
+ struct rtllib_authentication *auth;
+ int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
+
+ skb = dev_alloc_skb(len);
+ if (!skb)
+ return NULL;
+
+ skb->len = sizeof(struct rtllib_authentication);
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ auth = (struct rtllib_authentication *)
+ skb_put(skb, sizeof(struct rtllib_authentication));
+
+ auth->status = cpu_to_le16(status);
+ auth->transaction = cpu_to_le16(2);
+ auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
+
+ memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(auth->header.addr1, dest, ETH_ALEN);
+ auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
+ return skb;
+
+
+}
+
+static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
+{
+ struct sk_buff *skb;
+ struct rtllib_hdr_3addr *hdr;
+
+ skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
+ sizeof(struct rtllib_hdr_3addr));
+
+ memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
+ memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
+
+ hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
+ RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
+ (pwr ? RTLLIB_FCTL_PM : 0));
+
+ return skb;
+
+
+}
+
+static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
+{
+ struct sk_buff *skb;
+ struct rtllib_pspoll_hdr *hdr;
+
+ skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
+ sizeof(struct rtllib_pspoll_hdr));
+
+ memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN);
+ memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN);
+
+ hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
+ hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
+ RTLLIB_FCTL_PM);
+
+ return skb;
+
+}
+
+static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
+{
+ struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
+
+ if (buf)
+ softmac_mgmt_xmit(buf, ieee);
+}
+
+
+static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
+{
+ struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
+
+ if (buf)
+ softmac_mgmt_xmit(buf, ieee);
+}
+
+
+static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
+{
+ struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
+
+ if (buf)
+ softmac_mgmt_xmit(buf, ieee);
+}
+
+
+inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
+{
+ int i = 0;
+
+ do {
+ if ((ieee->PMKIDList[i].bUsed) &&
+ (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
+ break;
+ i++;
+ } while (i < NUM_PMKID_CACHE);
+
+ if (i == NUM_PMKID_CACHE)
+ i = -1;
+ return i;
+}
+
+inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
+ struct rtllib_device *ieee)
+{
+ struct sk_buff *skb;
+ struct rtllib_assoc_request_frame *hdr;
+ u8 *tag, *ies;
+ int i;
+ u8 *ht_cap_buf = NULL;
+ u8 ht_cap_len = 0;
+ u8 *realtek_ie_buf = NULL;
+ u8 realtek_ie_len = 0;
+ int wpa_ie_len = ieee->wpa_ie_len;
+ int wps_ie_len = ieee->wps_ie_len;
+ unsigned int ckip_ie_len = 0;
+ unsigned int ccxrm_ie_len = 0;
+ unsigned int cxvernum_ie_len = 0;
+ struct lib80211_crypt_data *crypt;
+ int encrypt;
+ int PMKCacheIdx;
+
+ unsigned int rate_len = (beacon->rates_len ?
+ (beacon->rates_len + 2) : 0) +
+ (beacon->rates_ex_len ? (beacon->rates_ex_len) +
+ 2 : 0);
+
+ unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
+ unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
+
+ int len = 0;
+
+ crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
+ if (crypt != NULL)
+ encrypt = ieee->host_encrypt && crypt && crypt->ops &&
+ ((0 == strcmp(crypt->ops->name, "R-WEP") ||
+ wpa_ie_len));
+ else
+ encrypt = 0;
+
+ if ((ieee->rtllib_ap_sec_type &&
+ (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
+ ieee->bForcedBgMode) {
+ ieee->pHTInfo->bEnableHT = 0;
+ ieee->mode = WIRELESS_MODE_G;
+ }
+
+ if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
+ ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
+ ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
+ HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
+ encrypt, true);
+ if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
+ realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
+ realtek_ie_len =
+ sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
+ HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
+ &realtek_ie_len);
+ }
+ }
+
+ if (beacon->bCkipSupported)
+ ckip_ie_len = 30+2;
+ if (beacon->bCcxRmEnable)
+ ccxrm_ie_len = 6+2;
+ if (beacon->BssCcxVerNumber >= 2)
+ cxvernum_ie_len = 5+2;
+
+ PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
+ if (PMKCacheIdx >= 0) {
+ wpa_ie_len += 18;
+ netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
+ wpa_ie_len);
+ }
+ len = sizeof(struct rtllib_assoc_request_frame) + 2
+ + beacon->ssid_len
+ + rate_len
+ + wpa_ie_len
+ + wps_ie_len
+ + wmm_info_len
+ + turbo_info_len
+ + ht_cap_len
+ + realtek_ie_len
+ + ckip_ie_len
+ + ccxrm_ie_len
+ + cxvernum_ie_len
+ + ieee->tx_headroom;
+
+ skb = dev_alloc_skb(len);
+
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ hdr = (struct rtllib_assoc_request_frame *)
+ skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
+
+
+ hdr->header.frame_ctl = RTLLIB_STYPE_ASSOC_REQ;
+ hdr->header.duration_id = cpu_to_le16(37);
+ memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
+ memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
+
+ memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);
+
+ hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
+ if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
+ hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
+
+ if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
+
+ if (ieee->short_slot &&
+ (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
+ hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
+
+
+ hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
+
+ hdr->info_element[0].id = MFIE_TYPE_SSID;
+
+ hdr->info_element[0].len = beacon->ssid_len;
+ tag = skb_put(skb, beacon->ssid_len);
+ memcpy(tag, beacon->ssid, beacon->ssid_len);
+
+ tag = skb_put(skb, rate_len);
+
+ if (beacon->rates_len) {
+ *tag++ = MFIE_TYPE_RATES;
+ *tag++ = beacon->rates_len;
+ for (i = 0; i < beacon->rates_len; i++)
+ *tag++ = beacon->rates[i];
+ }
+
+ if (beacon->rates_ex_len) {
+ *tag++ = MFIE_TYPE_RATES_EX;
+ *tag++ = beacon->rates_ex_len;
+ for (i = 0; i < beacon->rates_ex_len; i++)
+ *tag++ = beacon->rates_ex[i];
+ }
+
+ if (beacon->bCkipSupported) {
+ static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
+ u8 CcxAironetBuf[30];
+ struct octet_string osCcxAironetIE;
+
+ memset(CcxAironetBuf, 0, 30);
+ osCcxAironetIE.Octet = CcxAironetBuf;
+ osCcxAironetIE.Length = sizeof(CcxAironetBuf);
+ memcpy(osCcxAironetIE.Octet, AironetIeOui,
+ sizeof(AironetIeOui));
+
+ osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
+ (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
+ tag = skb_put(skb, ckip_ie_len);
+ *tag++ = MFIE_TYPE_AIRONET;
+ *tag++ = osCcxAironetIE.Length;
+ memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
+ tag += osCcxAironetIE.Length;
+ }
+
+ if (beacon->bCcxRmEnable) {
+ static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
+ 0x00};
+ struct octet_string osCcxRmCap;
+
+ osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
+ osCcxRmCap.Length = sizeof(CcxRmCapBuf);
+ tag = skb_put(skb, ccxrm_ie_len);
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = osCcxRmCap.Length;
+ memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
+ tag += osCcxRmCap.Length;
+ }
+
+ if (beacon->BssCcxVerNumber >= 2) {
+ u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
+ struct octet_string osCcxVerNum;
+
+ CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
+ osCcxVerNum.Octet = CcxVerNumBuf;
+ osCcxVerNum.Length = sizeof(CcxVerNumBuf);
+ tag = skb_put(skb, cxvernum_ie_len);
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = osCcxVerNum.Length;
+ memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
+ tag += osCcxVerNum.Length;
+ }
+ if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
+ if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
+ tag = skb_put(skb, ht_cap_len);
+ *tag++ = MFIE_TYPE_HT_CAP;
+ *tag++ = ht_cap_len - 2;
+ memcpy(tag, ht_cap_buf, ht_cap_len - 2);
+ tag += ht_cap_len - 2;
+ }
+ }
+
+ if (wpa_ie_len) {
+ tag = skb_put(skb, ieee->wpa_ie_len);
+ memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
+
+ if (PMKCacheIdx >= 0) {
+ tag = skb_put(skb, 18);
+ *tag = 1;
+ *(tag + 1) = 0;
+ memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
+ 16);
+ }
+ }
+ if (wmm_info_len) {
+ tag = skb_put(skb, wmm_info_len);
+ rtllib_WMM_Info(ieee, &tag);
+ }
+
+ if (wps_ie_len && ieee->wps_ie) {
+ tag = skb_put(skb, wps_ie_len);
+ memcpy(tag, ieee->wps_ie, wps_ie_len);
+ }
+
+ tag = skb_put(skb, turbo_info_len);
+ if (turbo_info_len)
+ rtllib_TURBO_Info(ieee, &tag);
+
+ if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
+ if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
+ tag = skb_put(skb, ht_cap_len);
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = ht_cap_len - 2;
+ memcpy(tag, ht_cap_buf, ht_cap_len - 2);
+ tag += ht_cap_len - 2;
+ }
+
+ if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
+ tag = skb_put(skb, realtek_ie_len);
+ *tag++ = MFIE_TYPE_GENERIC;
+ *tag++ = realtek_ie_len - 2;
+ memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
+ }
+ }
+
+ kfree(ieee->assocreq_ies);
+ ieee->assocreq_ies = NULL;
+ ies = &(hdr->info_element[0].id);
+ ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
+ ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
+ if (ieee->assocreq_ies)
+ memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
+ else {
+ netdev_info(ieee->dev,
+ "%s()Warning: can't alloc memory for assocreq_ies\n",
+ __func__);
+ ieee->assocreq_ies_len = 0;
+ }
+ return skb;
+}
+
+void rtllib_associate_abort(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ ieee->associate_seq++;
+
+ /* don't scan, and avoid to have the RX path possibily
+ * try again to associate. Even do not react to AUTH or
+ * ASSOC response. Just wait for the retry wq to be scheduled.
+ * Here we will check if there are good nets to associate
+ * with, so we retry or just get back to NO_LINK and scanning
+ */
+ if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
+ RTLLIB_DEBUG_MGMT("Authentication failed\n");
+ ieee->softmac_stats.no_auth_rs++;
+ } else {
+ RTLLIB_DEBUG_MGMT("Association failed\n");
+ ieee->softmac_stats.no_ass_rs++;
+ }
+
+ ieee->state = RTLLIB_ASSOCIATING_RETRY;
+
+ queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq,
+ RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
+
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+static void rtllib_associate_abort_cb(unsigned long dev)
+{
+ rtllib_associate_abort((struct rtllib_device *) dev);
+}
+
+static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
+{
+ struct rtllib_network *beacon = &ieee->current_network;
+ struct sk_buff *skb;
+
+ RTLLIB_DEBUG_MGMT("Stopping scan\n");
+
+ ieee->softmac_stats.tx_auth_rq++;
+
+ skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
+
+ if (!skb)
+ rtllib_associate_abort(ieee);
+ else {
+ ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
+ RTLLIB_DEBUG_MGMT("Sending authentication request\n");
+ softmac_mgmt_xmit(skb, ieee);
+ if (!timer_pending(&ieee->associate_timer)) {
+ ieee->associate_timer.expires = jiffies + (HZ / 2);
+ add_timer(&ieee->associate_timer);
+ }
+ }
+}
+
+static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int chlen)
+{
+ u8 *c;
+ struct sk_buff *skb;
+ struct rtllib_network *beacon = &ieee->current_network;
+
+ ieee->associate_seq++;
+ ieee->softmac_stats.tx_auth_rq++;
+
+ skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
+
+ if (!skb)
+ rtllib_associate_abort(ieee);
+ else {
+ c = skb_put(skb, chlen+2);
+ *(c++) = MFIE_TYPE_CHALLENGE;
+ *(c++) = chlen;
+ memcpy(c, challenge, chlen);
+
+ RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");
+
+ rtllib_encrypt_fragment(ieee, skb,
+ sizeof(struct rtllib_hdr_3addr));
+
+ softmac_mgmt_xmit(skb, ieee);
+ mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
+ }
+ kfree(challenge);
+}
+
+static void rtllib_associate_step2(struct rtllib_device *ieee)
+{
+ struct sk_buff *skb;
+ struct rtllib_network *beacon = &ieee->current_network;
+
+ del_timer_sync(&ieee->associate_timer);
+
+ RTLLIB_DEBUG_MGMT("Sending association request\n");
+
+ ieee->softmac_stats.tx_ass_rq++;
+ skb = rtllib_association_req(beacon, ieee);
+ if (!skb)
+ rtllib_associate_abort(ieee);
+ else {
+ softmac_mgmt_xmit(skb, ieee);
+ mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
+ }
+}
+
+#define CANCELLED 2
+static void rtllib_associate_complete_wq(void *data)
+{
+ struct rtllib_device *ieee = (struct rtllib_device *)
+ container_of_work_rsl(data,
+ struct rtllib_device,
+ associate_complete_wq);
+ struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
+ (&(ieee->PowerSaveControl));
+ netdev_info(ieee->dev, "Associated successfully\n");
+ if (!ieee->is_silent_reset) {
+ netdev_info(ieee->dev, "normal associate\n");
+ notify_wx_assoc_event(ieee);
+ }
+
+ netif_carrier_on(ieee->dev);
+ ieee->is_roaming = false;
+ if (rtllib_is_54g(&ieee->current_network) &&
+ (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
+ ieee->rate = 108;
+ netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
+ } else {
+ ieee->rate = 22;
+ ieee->SetWirelessMode(ieee->dev, IEEE_B);
+ netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
+ }
+ if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
+ netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
+ HTOnAssocRsp(ieee);
+ } else {
+ netdev_info(ieee->dev,
+ "Successfully associated, ht not enabled(%d, %d)\n",
+ ieee->pHTInfo->bCurrentHTSupport,
+ ieee->pHTInfo->bEnableHT);
+ memset(ieee->dot11HTOperationalRateSet, 0, 16);
+ }
+ ieee->LinkDetectInfo.SlotNum = 2 * (1 +
+ ieee->current_network.beacon_interval /
+ 500);
+ if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
+ ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
+ ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
+ ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
+ }
+ pPSC->LpsIdleCount = 0;
+ ieee->link_change(ieee->dev);
+
+ if (ieee->is_silent_reset) {
+ netdev_info(ieee->dev, "silent reset associate\n");
+ ieee->is_silent_reset = false;
+ }
+
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+}
+
+static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
+{
+}
+
+static void rtllib_associate_complete(struct rtllib_device *ieee)
+{
+ del_timer_sync(&ieee->associate_timer);
+
+ ieee->state = RTLLIB_LINKED;
+ rtllib_sta_send_associnfo(ieee);
+
+ queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
+}
+
+static void rtllib_associate_procedure_wq(void *data)
+{
+ struct rtllib_device *ieee = container_of_dwork_rsl(data,
+ struct rtllib_device,
+ associate_procedure_wq);
+ rtllib_stop_scan_syncro(ieee);
+ if (ieee->rtllib_ips_leave != NULL)
+ ieee->rtllib_ips_leave(ieee->dev);
+ down(&ieee->wx_sem);
+
+ if (ieee->data_hard_stop)
+ ieee->data_hard_stop(ieee->dev);
+
+ rtllib_stop_scan(ieee);
+ RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
+ ieee->current_network.channel);
+ HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
+ if (ieee->eRFPowerState == eRfOff) {
+ RT_TRACE(COMP_DBG,
+ "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
+ __func__);
+ if (ieee->rtllib_ips_leave_wq != NULL)
+ ieee->rtllib_ips_leave_wq(ieee->dev);
+ up(&ieee->wx_sem);
+ return;
+ }
+ ieee->associate_seq = 1;
+
+ rtllib_associate_step1(ieee, ieee->current_network.bssid);
+
+ up(&ieee->wx_sem);
+}
+
+inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
+ struct rtllib_network *net)
+{
+ u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
+ int tmp_ssid_len = 0;
+
+ short apset, ssidset, ssidbroad, apmatch, ssidmatch;
+
+ /* we are interested in new new only if we are not associated
+ * and we are not associating / authenticating
+ */
+ if (ieee->state != RTLLIB_NOLINK)
+ return;
+
+ if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
+ WLAN_CAPABILITY_ESS))
+ return;
+
+ if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
+ WLAN_CAPABILITY_IBSS))
+ return;
+
+ if ((ieee->iw_mode == IW_MODE_ADHOC) &&
+ (net->channel > ieee->ibss_maxjoin_chal))
+ return;
+ if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
+ /* if the user specified the AP MAC, we need also the essid
+ * This could be obtained by beacons or, if the network does not
+ * broadcast it, it can be put manually.
+ */
+ apset = ieee->wap_set;
+ ssidset = ieee->ssid_set;
+ ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
+ apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
+ ETH_ALEN) == 0);
+ if (!ssidbroad) {
+ ssidmatch = (ieee->current_network.ssid_len ==
+ net->hidden_ssid_len) &&
+ (!strncmp(ieee->current_network.ssid,
+ net->hidden_ssid, net->hidden_ssid_len));
+ if (net->hidden_ssid_len > 0) {
+ strncpy(net->ssid, net->hidden_ssid,
+ net->hidden_ssid_len);
+ net->ssid_len = net->hidden_ssid_len;
+ ssidbroad = 1;
+ }
+ } else
+ ssidmatch =
+ (ieee->current_network.ssid_len == net->ssid_len) &&
+ (!strncmp(ieee->current_network.ssid, net->ssid,
+ net->ssid_len));
+
+ /* if the user set the AP check if match.
+ * if the network does not broadcast essid we check the
+ * user supplied ANY essid
+ * if the network does broadcast and the user does not set
+ * essid it is OK
+ * if the network does broadcast and the user did set essid
+ * check if essid match
+ * if the ap is not set, check that the user set the bssid
+ * and the network does broadcast and that those two bssid match
+ */
+ if ((apset && apmatch &&
+ ((ssidset && ssidbroad && ssidmatch) ||
+ (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
+ (!apset && ssidset && ssidbroad && ssidmatch) ||
+ (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
+ /* if the essid is hidden replace it with the
+ * essid provided by the user.
+ */
+ if (!ssidbroad) {
+ strncpy(tmp_ssid, ieee->current_network.ssid,
+ IW_ESSID_MAX_SIZE);
+ tmp_ssid_len = ieee->current_network.ssid_len;
+ }
+ memcpy(&ieee->current_network, net,
+ sizeof(struct rtllib_network));
+ if (!ssidbroad) {
+ strncpy(ieee->current_network.ssid, tmp_ssid,
+ IW_ESSID_MAX_SIZE);
+ ieee->current_network.ssid_len = tmp_ssid_len;
+ }
+ netdev_info(ieee->dev,
+ "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
+ ieee->current_network.ssid,
+ ieee->current_network.channel,
+ ieee->current_network.qos_data.supported,
+ ieee->pHTInfo->bEnableHT,
+ ieee->current_network.bssht.bdSupportHT,
+ ieee->current_network.mode,
+ ieee->current_network.flags);
+
+ if ((rtllib_act_scanning(ieee, false)) &&
+ !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
+ rtllib_stop_scan_syncro(ieee);
+
+ ieee->hwscan_ch_bk = ieee->current_network.channel;
+ HTResetIOTSetting(ieee->pHTInfo);
+ ieee->wmm_acm = 0;
+ if (ieee->iw_mode == IW_MODE_INFRA) {
+ /* Join the network for the first time */
+ ieee->AsocRetryCount = 0;
+ if ((ieee->current_network.qos_data.supported == 1) &&
+ ieee->current_network.bssht.bdSupportHT)
+ HTResetSelfAndSavePeerSetting(ieee,
+ &(ieee->current_network));
+ else
+ ieee->pHTInfo->bCurrentHTSupport =
+ false;
+
+ ieee->state = RTLLIB_ASSOCIATING;
+ if (ieee->LedControlHandler != NULL)
+ ieee->LedControlHandler(ieee->dev,
+ LED_CTL_START_TO_LINK);
+ queue_delayed_work_rsl(ieee->wq,
+ &ieee->associate_procedure_wq, 0);
+ } else {
+ if (rtllib_is_54g(&ieee->current_network) &&
+ (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
+ ieee->rate = 108;
+ ieee->SetWirelessMode(ieee->dev, IEEE_G);
+ netdev_info(ieee->dev, "Using G rates\n");
+ } else {
+ ieee->rate = 22;
+ ieee->SetWirelessMode(ieee->dev, IEEE_B);
+ netdev_info(ieee->dev, "Using B rates\n");
+ }
+ memset(ieee->dot11HTOperationalRateSet, 0, 16);
+ ieee->state = RTLLIB_LINKED;
+ }
+ }
+ }
+}
+
+void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+ struct rtllib_network *target;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ list_for_each_entry(target, &ieee->network_list, list) {
+
+ /* if the state become different that NOLINK means
+ * we had found what we are searching for
+ */
+
+ if (ieee->state != RTLLIB_NOLINK)
+ break;
+
+ if (ieee->scan_age == 0 || time_after(target->last_scanned +
+ ieee->scan_age, jiffies))
+ rtllib_softmac_new_net(ieee, target);
+ }
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+static inline u16 auth_parse(struct sk_buff *skb, u8 **challenge, int *chlen)
+{
+ struct rtllib_authentication *a;
+ u8 *t;
+
+ if (skb->len < (sizeof(struct rtllib_authentication) -
+ sizeof(struct rtllib_info_element))) {
+ RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
+ return 0xcafe;
+ }
+ *challenge = NULL;
+ a = (struct rtllib_authentication *) skb->data;
+ if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
+ t = skb->data + sizeof(struct rtllib_authentication);
+
+ if (*(t++) == MFIE_TYPE_CHALLENGE) {
+ *chlen = *(t++);
+ *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
+ if (!*challenge)
+ return -ENOMEM;
+ }
+ }
+ return cpu_to_le16(a->status);
+}
+
+static int auth_rq_parse(struct sk_buff *skb, u8 *dest)
+{
+ struct rtllib_authentication *a;
+
+ if (skb->len < (sizeof(struct rtllib_authentication) -
+ sizeof(struct rtllib_info_element))) {
+ RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
+ skb->len);
+ return -1;
+ }
+ a = (struct rtllib_authentication *) skb->data;
+
+ memcpy(dest, a->header.addr2, ETH_ALEN);
+
+ if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
+ return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
+
+ return WLAN_STATUS_SUCCESS;
+}
+
+static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
+ u8 *src)
+{
+ u8 *tag;
+ u8 *skbend;
+ u8 *ssid = NULL;
+ u8 ssidlen = 0;
+ struct rtllib_hdr_3addr *header =
+ (struct rtllib_hdr_3addr *) skb->data;
+ bool bssid_match;
+
+ if (skb->len < sizeof(struct rtllib_hdr_3addr))
+ return -1; /* corrupted */
+
+ bssid_match =
+ (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0) &&
+ (!is_broadcast_ether_addr(header->addr3));
+ if (bssid_match)
+ return -1;
+
+ memcpy(src, header->addr2, ETH_ALEN);
+
+ skbend = (u8 *)skb->data + skb->len;
+
+ tag = skb->data + sizeof(struct rtllib_hdr_3addr);
+
+ while (tag + 1 < skbend) {
+ if (*tag == 0) {
+ ssid = tag + 2;
+ ssidlen = *(tag + 1);
+ break;
+ }
+ tag++; /* point to the len field */
+ tag = tag + *(tag); /* point to the last data byte of the tag */
+ tag++; /* point to the next tag */
+ }
+
+ if (ssidlen == 0)
+ return 1;
+
+ if (!ssid)
+ return 1; /* ssid not found in tagged param */
+
+ return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
+}
+
+static int assoc_rq_parse(struct sk_buff *skb, u8 *dest)
+{
+ struct rtllib_assoc_request_frame *a;
+
+ if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
+ sizeof(struct rtllib_info_element))) {
+
+ RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb->len);
+ return -1;
+ }
+
+ a = (struct rtllib_assoc_request_frame *) skb->data;
+
+ memcpy(dest, a->header.addr2, ETH_ALEN);
+
+ return 0;
+}
+
+static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
+ int *aid)
+{
+ struct rtllib_assoc_response_frame *response_head;
+ u16 status_code;
+
+ if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
+ RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
+ return 0xcafe;
+ }
+
+ response_head = (struct rtllib_assoc_response_frame *) skb->data;
+ *aid = le16_to_cpu(response_head->aid) & 0x3fff;
+
+ status_code = le16_to_cpu(response_head->status);
+ if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
+ status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
+ ((ieee->mode == IEEE_G) &&
+ (ieee->current_network.mode == IEEE_N_24G) &&
+ (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
+ ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
+ } else {
+ ieee->AsocRetryCount = 0;
+ }
+
+ return le16_to_cpu(response_head->status);
+}
+
+void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
+{
+ u8 dest[ETH_ALEN];
+
+ ieee->softmac_stats.rx_probe_rq++;
+ if (probe_rq_parse(ieee, skb, dest) > 0) {
+ ieee->softmac_stats.tx_probe_rs++;
+ rtllib_resp_to_probe(ieee, dest);
+ }
+}
+
+static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
+ struct sk_buff *skb)
+{
+ u8 dest[ETH_ALEN];
+ int status;
+
+ ieee->softmac_stats.rx_auth_rq++;
+
+ status = auth_rq_parse(skb, dest);
+ if (status != -1)
+ rtllib_resp_to_auth(ieee, status, dest);
+}
+
+static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
+ struct sk_buff *skb)
+{
+
+ u8 dest[ETH_ALEN];
+
+ ieee->softmac_stats.rx_ass_rq++;
+ if (assoc_rq_parse(skb, dest) != -1)
+ rtllib_resp_to_assoc_rq(ieee, dest);
+
+ netdev_info(ieee->dev, "New client associated: %pM\n", dest);
+}
+
+void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
+{
+
+ struct sk_buff *buf = rtllib_null_func(ieee, pwr);
+
+ if (buf)
+ softmac_ps_mgmt_xmit(buf, ieee);
+}
+EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
+
+void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
+{
+ struct sk_buff *buf = rtllib_pspoll_func(ieee);
+
+ if (buf)
+ softmac_ps_mgmt_xmit(buf, ieee);
+}
+
+static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
+{
+ int timeout = ieee->ps_timeout;
+ u8 dtim;
+ struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
+ (&(ieee->PowerSaveControl));
+
+ if (ieee->LPSDelayCnt) {
+ ieee->LPSDelayCnt--;
+ return 0;
+ }
+
+ dtim = ieee->current_network.dtim_data;
+ if (!(dtim & RTLLIB_DTIM_VALID))
+ return 0;
+ timeout = ieee->current_network.beacon_interval;
+ ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
+ /* there's no need to nofity AP that I find you buffered
+ * with broadcast packet
+ */
+ if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
+ return 2;
+
+ if (!time_after(jiffies,
+ ieee->dev->trans_start + msecs_to_jiffies(timeout)))
+ return 0;
+ if (!time_after(jiffies,
+ ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
+ return 0;
+ if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
+ (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
+ return 0;
+
+ if (time) {
+ if (ieee->bAwakePktSent) {
+ pPSC->LPSAwakeIntvl = 1;
+ } else {
+ u8 MaxPeriod = 1;
+
+ if (pPSC->LPSAwakeIntvl == 0)
+ pPSC->LPSAwakeIntvl = 1;
+ if (pPSC->RegMaxLPSAwakeIntvl == 0)
+ MaxPeriod = 1;
+ else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
+ MaxPeriod = ieee->current_network.dtim_period;
+ else
+ MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
+ pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
+ MaxPeriod) ? MaxPeriod :
+ (pPSC->LPSAwakeIntvl + 1);
+ }
+ {
+ u8 LPSAwakeIntvl_tmp = 0;
+ u8 period = ieee->current_network.dtim_period;
+ u8 count = ieee->current_network.tim.tim_count;
+
+ if (count == 0) {
+ if (pPSC->LPSAwakeIntvl > period)
+ LPSAwakeIntvl_tmp = period +
+ (pPSC->LPSAwakeIntvl -
+ period) -
+ ((pPSC->LPSAwakeIntvl-period) %
+ period);
+ else
+ LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
+
+ } else {
+ if (pPSC->LPSAwakeIntvl >
+ ieee->current_network.tim.tim_count)
+ LPSAwakeIntvl_tmp = count +
+ (pPSC->LPSAwakeIntvl - count) -
+ ((pPSC->LPSAwakeIntvl-count)%period);
+ else
+ LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
+ }
+
+ *time = ieee->current_network.last_dtim_sta_time
+ + msecs_to_jiffies(ieee->current_network.beacon_interval *
+ LPSAwakeIntvl_tmp);
+ }
+ }
+
+ return 1;
+
+
+}
+
+static inline void rtllib_sta_ps(struct rtllib_device *ieee)
+{
+ u64 time;
+ short sleep;
+ unsigned long flags, flags2;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if ((ieee->ps == RTLLIB_PS_DISABLED ||
+ ieee->iw_mode != IW_MODE_INFRA ||
+ ieee->state != RTLLIB_LINKED)) {
+ RT_TRACE(COMP_DBG,
+ "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
+ __func__, ieee->ps, ieee->iw_mode, ieee->state);
+ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
+ rtllib_sta_wakeup(ieee, 1);
+
+ spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
+ }
+ sleep = rtllib_sta_ps_sleep(ieee, &time);
+ /* 2 wake, 1 sleep, 0 do nothing */
+ if (sleep == 0)
+ goto out;
+ if (sleep == 1) {
+ if (ieee->sta_sleep == LPS_IS_SLEEP) {
+ ieee->enter_sleep_state(ieee->dev, time);
+ } else if (ieee->sta_sleep == LPS_IS_WAKE) {
+ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
+
+ if (ieee->ps_is_queue_empty(ieee->dev)) {
+ ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
+ ieee->ack_tx_to_ieee = 1;
+ rtllib_sta_ps_send_null_frame(ieee, 1);
+ ieee->ps_time = time;
+ }
+ spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
+
+ }
+
+ ieee->bAwakePktSent = false;
+
+ } else if (sleep == 2) {
+ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
+
+ rtllib_sta_wakeup(ieee, 1);
+
+ spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
+ }
+
+out:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+}
+
+void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
+{
+ if (ieee->sta_sleep == LPS_IS_WAKE) {
+ if (nl) {
+ if (ieee->pHTInfo->IOTAction &
+ HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
+ ieee->ack_tx_to_ieee = 1;
+ rtllib_sta_ps_send_null_frame(ieee, 0);
+ } else {
+ ieee->ack_tx_to_ieee = 1;
+ rtllib_sta_ps_send_pspoll_frame(ieee);
+ }
+ }
+ return;
+
+ }
+
+ if (ieee->sta_sleep == LPS_IS_SLEEP)
+ ieee->sta_wake_up(ieee->dev);
+ if (nl) {
+ if (ieee->pHTInfo->IOTAction &
+ HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
+ ieee->ack_tx_to_ieee = 1;
+ rtllib_sta_ps_send_null_frame(ieee, 0);
+ } else {
+ ieee->ack_tx_to_ieee = 1;
+ ieee->polling = true;
+ rtllib_sta_ps_send_pspoll_frame(ieee);
+ }
+
+ } else {
+ ieee->sta_sleep = LPS_IS_WAKE;
+ ieee->polling = false;
+ }
+}
+
+void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
+{
+ unsigned long flags, flags2;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
+ /* Null frame with PS bit set */
+ if (success) {
+ ieee->sta_sleep = LPS_IS_SLEEP;
+ ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
+ }
+ /* if the card report not success we can't be sure the AP
+ * has not RXed so we can't assume the AP believe us awake
+ */
+ } else {/* 21112005 - tx again null without PS bit if lost */
+
+ if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
+ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
+ if (ieee->pHTInfo->IOTAction &
+ HT_IOT_ACT_NULL_DATA_POWER_SAVING)
+ rtllib_sta_ps_send_null_frame(ieee, 0);
+ else
+ rtllib_sta_ps_send_pspoll_frame(ieee);
+ spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
+ }
+ }
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+EXPORT_SYMBOL(rtllib_ps_tx_ack);
+
+static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *skb)
+{
+ struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
+ u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
+ u8 category = 0;
+
+ if (act == NULL) {
+ RTLLIB_DEBUG(RTLLIB_DL_ERR,
+ "error to get payload of action frame\n");
+ return;
+ }
+
+ category = *act;
+ act++;
+ switch (category) {
+ case ACT_CAT_BA:
+ switch (*act) {
+ case ACT_ADDBAREQ:
+ rtllib_rx_ADDBAReq(ieee, skb);
+ break;
+ case ACT_ADDBARSP:
+ rtllib_rx_ADDBARsp(ieee, skb);
+ break;
+ case ACT_DELBA:
+ rtllib_rx_DELBA(ieee, skb);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
+ struct rtllib_rx_stats *rx_stats)
+{
+ u16 errcode;
+ int aid;
+ u8 *ies;
+ struct rtllib_assoc_response_frame *assoc_resp;
+ struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
+
+ RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
+ WLAN_FC_GET_STYPE(header->frame_ctl));
+
+ if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
+ ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
+ (ieee->iw_mode == IW_MODE_INFRA)) {
+ errcode = assoc_parse(ieee, skb, &aid);
+ if (0 == errcode) {
+ struct rtllib_network *network =
+ kzalloc(sizeof(struct rtllib_network),
+ GFP_ATOMIC);
+
+ if (!network)
+ return 1;
+ ieee->state = RTLLIB_LINKED;
+ ieee->assoc_id = aid;
+ ieee->softmac_stats.rx_ass_ok++;
+ /* station support qos */
+ /* Let the register setting default with Legacy station */
+ assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
+ if (ieee->current_network.qos_data.supported == 1) {
+ if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
+ rx_stats->len - sizeof(*assoc_resp),
+ network, rx_stats)) {
+ kfree(network);
+ return 1;
+ }
+ memcpy(ieee->pHTInfo->PeerHTCapBuf,
+ network->bssht.bdHTCapBuf,
+ network->bssht.bdHTCapLen);
+ memcpy(ieee->pHTInfo->PeerHTInfoBuf,
+ network->bssht.bdHTInfoBuf,
+ network->bssht.bdHTInfoLen);
+ if (ieee->handle_assoc_response != NULL)
+ ieee->handle_assoc_response(ieee->dev,
+ (struct rtllib_assoc_response_frame *)header,
+ network);
+ }
+ kfree(network);
+
+ kfree(ieee->assocresp_ies);
+ ieee->assocresp_ies = NULL;
+ ies = &(assoc_resp->info_element[0].id);
+ ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
+ ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
+ GFP_ATOMIC);
+ if (ieee->assocresp_ies)
+ memcpy(ieee->assocresp_ies, ies,
+ ieee->assocresp_ies_len);
+ else {
+ netdev_info(ieee->dev,
+ "%s()Warning: can't alloc memory for assocresp_ies\n",
+ __func__);
+ ieee->assocresp_ies_len = 0;
+ }
+ rtllib_associate_complete(ieee);
+ } else {
+ /* aid could not been allocated */
+ ieee->softmac_stats.rx_ass_err++;
+ netdev_info(ieee->dev,
+ "Association response status code 0x%x\n",
+ errcode);
+ RTLLIB_DEBUG_MGMT(
+ "Association response status code 0x%x\n",
+ errcode);
+ if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
+ queue_delayed_work_rsl(ieee->wq,
+ &ieee->associate_procedure_wq, 0);
+ else
+ rtllib_associate_abort(ieee);
+ }
+ }
+ return 0;
+}
+
+static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
+{
+ u16 errcode;
+ u8 *challenge;
+ int chlen = 0;
+ bool bSupportNmode = true, bHalfSupportNmode = false;
+
+ errcode = auth_parse(skb, &challenge, &chlen);
+
+ if (errcode) {
+ ieee->softmac_stats.rx_auth_rs_err++;
+ RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
+ errcode);
+
+ netdev_info(ieee->dev,
+ "Authentication respose status code 0x%x", errcode);
+ rtllib_associate_abort(ieee);
+ return;
+ }
+
+ if (ieee->open_wep || !challenge) {
+ ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
+ ieee->softmac_stats.rx_auth_rs_ok++;
+ if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
+ if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
+ if (IsHTHalfNmodeAPs(ieee)) {
+ bSupportNmode = true;
+ bHalfSupportNmode = true;
+ } else {
+ bSupportNmode = false;
+ bHalfSupportNmode = false;
+ }
+ }
+ }
+ /* Dummy wirless mode setting to avoid encryption issue */
+ if (bSupportNmode) {
+ ieee->SetWirelessMode(ieee->dev,
+ ieee->current_network.mode);
+ } else {
+ /*TODO*/
+ ieee->SetWirelessMode(ieee->dev, IEEE_G);
+ }
+
+ if ((ieee->current_network.mode == IEEE_N_24G) &&
+ bHalfSupportNmode) {
+ netdev_info(ieee->dev, "======>enter half N mode\n");
+ ieee->bHalfWirelessN24GMode = true;
+ } else {
+ ieee->bHalfWirelessN24GMode = false;
+ }
+ rtllib_associate_step2(ieee);
+ } else {
+ rtllib_auth_challenge(ieee, challenge, chlen);
+ }
+}
+
+inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
+ struct rtllib_rx_stats *rx_stats)
+{
+
+ if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
+ if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
+ (ieee->iw_mode == IW_MODE_INFRA)) {
+ RTLLIB_DEBUG_MGMT("Received authentication response");
+ rtllib_rx_auth_resp(ieee, skb);
+ } else if (ieee->iw_mode == IW_MODE_MASTER) {
+ rtllib_rx_auth_rq(ieee, skb);
+ }
+ }
+ return 0;
+}
+
+inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
+{
+ struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
+
+ if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
+ return 0;
+
+ /* FIXME for now repeat all the association procedure
+ * both for disassociation and deauthentication
+ */
+ if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
+ ieee->state == RTLLIB_LINKED &&
+ (ieee->iw_mode == IW_MODE_INFRA)) {
+ netdev_info(ieee->dev,
+ "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
+ WLAN_FC_GET_STYPE(header->frame_ctl),
+ ((struct rtllib_disassoc *)skb->data)->reason);
+ ieee->state = RTLLIB_ASSOCIATING;
+ ieee->softmac_stats.reassoc++;
+ ieee->is_roaming = true;
+ ieee->LinkDetectInfo.bBusyTraffic = false;
+ rtllib_disassociate(ieee);
+ RemovePeerTS(ieee, header->addr2);
+ if (ieee->LedControlHandler != NULL)
+ ieee->LedControlHandler(ieee->dev,
+ LED_CTL_START_TO_LINK);
+
+ if (!(ieee->rtllib_ap_sec_type(ieee) &
+ (SEC_ALG_CCMP|SEC_ALG_TKIP)))
+ queue_delayed_work_rsl(ieee->wq,
+ &ieee->associate_procedure_wq, 5);
+ }
+ return 0;
+}
+
+inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
+ struct sk_buff *skb,
+ struct rtllib_rx_stats *rx_stats, u16 type,
+ u16 stype)
+{
+ struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
+
+ if (!ieee->proto_started)
+ return 0;
+
+ switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
+ case RTLLIB_STYPE_ASSOC_RESP:
+ case RTLLIB_STYPE_REASSOC_RESP:
+ if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
+ return 1;
+ break;
+ case RTLLIB_STYPE_ASSOC_REQ:
+ case RTLLIB_STYPE_REASSOC_REQ:
+ if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
+ ieee->iw_mode == IW_MODE_MASTER)
+ rtllib_rx_assoc_rq(ieee, skb);
+ break;
+ case RTLLIB_STYPE_AUTH:
+ rtllib_rx_auth(ieee, skb, rx_stats);
+ break;
+ case RTLLIB_STYPE_DISASSOC:
+ case RTLLIB_STYPE_DEAUTH:
+ rtllib_rx_deauth(ieee, skb);
+ break;
+ case RTLLIB_STYPE_MANAGE_ACT:
+ rtllib_process_action(ieee, skb);
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+/* following are for a simpler TX queue management.
+ * Instead of using netif_[stop/wake]_queue the driver
+ * will use these two functions (plus a reset one), that
+ * will internally use the kernel netif_* and takes
+ * care of the ieee802.11 fragmentation.
+ * So the driver receives a fragment per time and might
+ * call the stop function when it wants to not
+ * have enough room to TX an entire packet.
+ * This might be useful if each fragment needs it's own
+ * descriptor, thus just keep a total free memory > than
+ * the max fragmentation threshold is not enough.. If the
+ * ieee802.11 stack passed a TXB struct then you need
+ * to keep N free descriptors where
+ * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
+ * In this way you need just one and the 802.11 stack
+ * will take care of buffering fragments and pass them to
+ * to the driver later, when it wakes the queue.
+ */
+void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
+{
+
+ unsigned int queue_index = txb->queue_index;
+ unsigned long flags;
+ int i;
+ struct cb_desc *tcb_desc = NULL;
+ unsigned long queue_len = 0;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ /* called with 2nd parm 0, no tx mgmt lock required */
+ rtllib_sta_wakeup(ieee, 0);
+
+ /* update the tx status */
+ tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
+ MAX_DEV_ADDR_SIZE);
+ if (tcb_desc->bMulticast)
+ ieee->stats.multicast++;
+
+ /* if xmit available, just xmit it immediately, else just insert it to
+ * the wait queue
+ */
+ for (i = 0; i < txb->nr_frags; i++) {
+ queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
+ if ((queue_len != 0) ||
+ (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
+ (ieee->queue_stop)) {
+ /* insert the skb packet to the wait queue
+ * as for the completion function, it does not need
+ * to check it any more.
+ */
+ if (queue_len < 200)
+ skb_queue_tail(&ieee->skb_waitQ[queue_index],
+ txb->fragments[i]);
+ else
+ kfree_skb(txb->fragments[i]);
+ } else {
+ ieee->softmac_data_hard_start_xmit(
+ txb->fragments[i],
+ ieee->dev, ieee->rate);
+ }
+ }
+
+ rtllib_txb_free(txb);
+
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+}
+
+/* called with ieee->lock acquired */
+static void rtllib_resume_tx(struct rtllib_device *ieee)
+{
+ int i;
+
+ for (i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags;
+ i++) {
+
+ if (ieee->queue_stop) {
+ ieee->tx_pending.frag = i;
+ return;
+ }
+
+ ieee->softmac_data_hard_start_xmit(
+ ieee->tx_pending.txb->fragments[i],
+ ieee->dev, ieee->rate);
+ ieee->stats.tx_packets++;
+ }
+
+ rtllib_txb_free(ieee->tx_pending.txb);
+ ieee->tx_pending.txb = NULL;
+}
+
+
+void rtllib_reset_queue(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+ init_mgmt_queue(ieee);
+ if (ieee->tx_pending.txb) {
+ rtllib_txb_free(ieee->tx_pending.txb);
+ ieee->tx_pending.txb = NULL;
+ }
+ ieee->queue_stop = 0;
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+}
+EXPORT_SYMBOL(rtllib_reset_queue);
+
+void rtllib_wake_queue(struct rtllib_device *ieee)
+{
+
+ unsigned long flags;
+ struct sk_buff *skb;
+ struct rtllib_hdr_3addr *header;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+ if (!ieee->queue_stop)
+ goto exit;
+
+ ieee->queue_stop = 0;
+
+ if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) {
+ while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))) {
+
+ header = (struct rtllib_hdr_3addr *) skb->data;
+
+ header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+
+ ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
+ ieee->basic_rate);
+ }
+ }
+ if (!ieee->queue_stop && ieee->tx_pending.txb)
+ rtllib_resume_tx(ieee);
+
+ if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)) {
+ ieee->softmac_stats.swtxawake++;
+ netif_wake_queue(ieee->dev);
+ }
+
+exit:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+
+void rtllib_stop_queue(struct rtllib_device *ieee)
+{
+
+ if (!netif_queue_stopped(ieee->dev)) {
+ netif_stop_queue(ieee->dev);
+ ieee->softmac_stats.swtxstop++;
+ }
+ ieee->queue_stop = 1;
+
+}
+
+void rtllib_stop_all_queues(struct rtllib_device *ieee)
+{
+ unsigned int i;
+
+ for (i = 0; i < ieee->dev->num_tx_queues; i++)
+ netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
+
+ netif_tx_stop_all_queues(ieee->dev);
+}
+
+void rtllib_wake_all_queues(struct rtllib_device *ieee)
+{
+ netif_tx_wake_all_queues(ieee->dev);
+}
+
+inline void rtllib_randomize_cell(struct rtllib_device *ieee)
+{
+
+ random_ether_addr(ieee->current_network.bssid);
+}
+
+/* called in user context only */
+void rtllib_start_master_bss(struct rtllib_device *ieee)
+{
+ ieee->assoc_id = 1;
+
+ if (ieee->current_network.ssid_len == 0) {
+ strncpy(ieee->current_network.ssid,
+ RTLLIB_DEFAULT_TX_ESSID,
+ IW_ESSID_MAX_SIZE);
+
+ ieee->current_network.ssid_len =
+ strlen(RTLLIB_DEFAULT_TX_ESSID);
+ ieee->ssid_set = 1;
+ }
+
+ memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
+
+ ieee->set_chan(ieee->dev, ieee->current_network.channel);
+ ieee->state = RTLLIB_LINKED;
+ ieee->link_change(ieee->dev);
+ notify_wx_assoc_event(ieee);
+
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+ netif_carrier_on(ieee->dev);
+}
+
+static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
+{
+ /* reset hardware status */
+ if (ieee->raw_tx) {
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+ netif_carrier_on(ieee->dev);
+ }
+}
+
+static void rtllib_start_ibss_wq(void *data)
+{
+ struct rtllib_device *ieee = container_of_dwork_rsl(data,
+ struct rtllib_device, start_ibss_wq);
+ /* iwconfig mode ad-hoc will schedule this and return
+ * on the other hand this will block further iwconfig SET
+ * operations because of the wx_sem hold.
+ * Anyway some most set operations set a flag to speed-up
+ * (abort) this wq (when syncro scanning) before sleeping
+ * on the semaphore
+ */
+ if (!ieee->proto_started) {
+ netdev_info(ieee->dev, "==========oh driver down return\n");
+ return;
+ }
+ down(&ieee->wx_sem);
+
+ if (ieee->current_network.ssid_len == 0) {
+ strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
+ ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
+ ieee->ssid_set = 1;
+ }
+
+ ieee->state = RTLLIB_NOLINK;
+ ieee->mode = IEEE_G;
+ /* check if we have this cell in our network list */
+ rtllib_softmac_check_all_nets(ieee);
+
+
+ /* if not then the state is not linked. Maybe the user switched to
+ * ad-hoc mode just after being in monitor mode, or just after
+ * being very few time in managed mode (so the card have had no
+ * time to scan all the chans..) or we have just run up the iface
+ * after setting ad-hoc mode. So we have to give another try..
+ * Here, in ibss mode, should be safe to do this without extra care
+ * (in bss mode we had to make sure no-one tried to associate when
+ * we had just checked the ieee->state and we was going to start the
+ * scan) because in ibss mode the rtllib_new_net function, when
+ * finds a good net, just set the ieee->state to RTLLIB_LINKED,
+ * so, at worst, we waste a bit of time to initiate an unneeded syncro
+ * scan, that will stop at the first round because it sees the state
+ * associated.
+ */
+ if (ieee->state == RTLLIB_NOLINK)
+ rtllib_start_scan_syncro(ieee, 0);
+
+ /* the network definitively is not here.. create a new cell */
+ if (ieee->state == RTLLIB_NOLINK) {
+ netdev_info(ieee->dev, "creating new IBSS cell\n");
+ ieee->current_network.channel = ieee->IbssStartChnl;
+ if (!ieee->wap_set)
+ rtllib_randomize_cell(ieee);
+
+ if (ieee->modulation & RTLLIB_CCK_MODULATION) {
+
+ ieee->current_network.rates_len = 4;
+
+ ieee->current_network.rates[0] =
+ RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
+ ieee->current_network.rates[1] =
+ RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
+ ieee->current_network.rates[2] =
+ RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
+ ieee->current_network.rates[3] =
+ RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
+
+ } else
+ ieee->current_network.rates_len = 0;
+
+ if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
+ ieee->current_network.rates_ex_len = 8;
+
+ ieee->current_network.rates_ex[0] =
+ RTLLIB_OFDM_RATE_6MB;
+ ieee->current_network.rates_ex[1] =
+ RTLLIB_OFDM_RATE_9MB;
+ ieee->current_network.rates_ex[2] =
+ RTLLIB_OFDM_RATE_12MB;
+ ieee->current_network.rates_ex[3] =
+ RTLLIB_OFDM_RATE_18MB;
+ ieee->current_network.rates_ex[4] =
+ RTLLIB_OFDM_RATE_24MB;
+ ieee->current_network.rates_ex[5] =
+ RTLLIB_OFDM_RATE_36MB;
+ ieee->current_network.rates_ex[6] =
+ RTLLIB_OFDM_RATE_48MB;
+ ieee->current_network.rates_ex[7] =
+ RTLLIB_OFDM_RATE_54MB;
+
+ ieee->rate = 108;
+ } else {
+ ieee->current_network.rates_ex_len = 0;
+ ieee->rate = 22;
+ }
+
+ ieee->current_network.qos_data.supported = 0;
+ ieee->SetWirelessMode(ieee->dev, IEEE_G);
+ ieee->current_network.mode = ieee->mode;
+ ieee->current_network.atim_window = 0;
+ ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
+ }
+
+ netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
+ if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
+ HTUseDefaultSetting(ieee);
+ else
+ ieee->pHTInfo->bCurrentHTSupport = false;
+
+ ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
+ (u8 *)(&ieee->state));
+
+ ieee->state = RTLLIB_LINKED;
+ ieee->link_change(ieee->dev);
+
+ HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
+ if (ieee->LedControlHandler != NULL)
+ ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
+
+ rtllib_start_send_beacons(ieee);
+
+ notify_wx_assoc_event(ieee);
+
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+ netif_carrier_on(ieee->dev);
+
+ up(&ieee->wx_sem);
+}
+
+inline void rtllib_start_ibss(struct rtllib_device *ieee)
+{
+ queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq,
+ msecs_to_jiffies(150));
+}
+
+/* this is called only in user context, with wx_sem held */
+void rtllib_start_bss(struct rtllib_device *ieee)
+{
+ unsigned long flags;
+
+ if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
+ if (!ieee->bGlobalDomain)
+ return;
+ }
+ /* check if we have already found the net we
+ * are interested in (if any).
+ * if not (we are disassociated and we are not
+ * in associating / authenticating phase) start the background scanning.
+ */
+ rtllib_softmac_check_all_nets(ieee);
+
+ /* ensure no-one start an associating process (thus setting
+ * the ieee->state to rtllib_ASSOCIATING) while we
+ * have just checked it and we are going to enable scan.
+ * The rtllib_new_net function is always called with
+ * lock held (from both rtllib_softmac_check_all_nets and
+ * the rx path), so we cannot be in the middle of such function
+ */
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (ieee->state == RTLLIB_NOLINK)
+ rtllib_start_scan(ieee);
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+static void rtllib_link_change_wq(void *data)
+{
+ struct rtllib_device *ieee = container_of_dwork_rsl(data,
+ struct rtllib_device, link_change_wq);
+ ieee->link_change(ieee->dev);
+}
+/* called only in userspace context */
+void rtllib_disassociate(struct rtllib_device *ieee)
+{
+ netif_carrier_off(ieee->dev);
+ if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
+ rtllib_reset_queue(ieee);
+
+ if (ieee->data_hard_stop)
+ ieee->data_hard_stop(ieee->dev);
+ if (IS_DOT11D_ENABLE(ieee))
+ Dot11d_Reset(ieee);
+ ieee->state = RTLLIB_NOLINK;
+ ieee->is_set_key = false;
+ ieee->wap_set = 0;
+
+ queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);
+
+ notify_wx_assoc_event(ieee);
+}
+
+static void rtllib_associate_retry_wq(void *data)
+{
+ struct rtllib_device *ieee = container_of_dwork_rsl(data,
+ struct rtllib_device, associate_retry_wq);
+ unsigned long flags;
+
+ down(&ieee->wx_sem);
+ if (!ieee->proto_started)
+ goto exit;
+
+ if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
+ goto exit;
+
+ /* until we do not set the state to RTLLIB_NOLINK
+ * there are no possibility to have someone else trying
+ * to start an association procedure (we get here with
+ * ieee->state = RTLLIB_ASSOCIATING).
+ * When we set the state to RTLLIB_NOLINK it is possible
+ * that the RX path run an attempt to associate, but
+ * both rtllib_softmac_check_all_nets and the
+ * RX path works with ieee->lock held so there are no
+ * problems. If we are still disassociated then start a scan.
+ * the lock here is necessary to ensure no one try to start
+ * an association procedure when we have just checked the
+ * state and we are going to start the scan.
+ */
+ ieee->beinretry = true;
+ ieee->state = RTLLIB_NOLINK;
+
+ rtllib_softmac_check_all_nets(ieee);
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (ieee->state == RTLLIB_NOLINK)
+ rtllib_start_scan(ieee);
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ ieee->beinretry = false;
+exit:
+ up(&ieee->wx_sem);
+}
+
+struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
+{
+ u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+ struct sk_buff *skb;
+ struct rtllib_probe_response *b;
+
+ skb = rtllib_probe_resp(ieee, broadcast_addr);
+
+ if (!skb)
+ return NULL;
+
+ b = (struct rtllib_probe_response *) skb->data;
+ b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
+
+ return skb;
+
+}
+
+struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
+{
+ struct sk_buff *skb;
+ struct rtllib_probe_response *b;
+
+ skb = rtllib_get_beacon_(ieee);
+ if (!skb)
+ return NULL;
+
+ b = (struct rtllib_probe_response *) skb->data;
+ b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
+
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
+
+ return skb;
+}
+EXPORT_SYMBOL(rtllib_get_beacon);
+
+void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
+ u8 shutdown)
+{
+ rtllib_stop_scan_syncro(ieee);
+ down(&ieee->wx_sem);
+ rtllib_stop_protocol(ieee, shutdown);
+ up(&ieee->wx_sem);
+}
+EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
+
+
+void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
+{
+ if (!ieee->proto_started)
+ return;
+
+ if (shutdown) {
+ ieee->proto_started = 0;
+ ieee->proto_stoppping = 1;
+ if (ieee->rtllib_ips_leave != NULL)
+ ieee->rtllib_ips_leave(ieee->dev);
+ }
+
+ rtllib_stop_send_beacons(ieee);
+ del_timer_sync(&ieee->associate_timer);
+ cancel_delayed_work(&ieee->associate_retry_wq);
+ cancel_delayed_work(&ieee->start_ibss_wq);
+ cancel_delayed_work(&ieee->link_change_wq);
+ rtllib_stop_scan(ieee);
+
+ if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
+ ieee->state = RTLLIB_NOLINK;
+
+ if (ieee->state == RTLLIB_LINKED) {
+ if (ieee->iw_mode == IW_MODE_INFRA)
+ SendDisassociation(ieee, 1, deauth_lv_ss);
+ rtllib_disassociate(ieee);
+ }
+
+ if (shutdown) {
+ RemoveAllTS(ieee);
+ ieee->proto_stoppping = 0;
+ }
+ kfree(ieee->assocreq_ies);
+ ieee->assocreq_ies = NULL;
+ ieee->assocreq_ies_len = 0;
+ kfree(ieee->assocresp_ies);
+ ieee->assocresp_ies = NULL;
+ ieee->assocresp_ies_len = 0;
+}
+
+void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
+{
+ down(&ieee->wx_sem);
+ rtllib_start_protocol(ieee);
+ up(&ieee->wx_sem);
+}
+EXPORT_SYMBOL(rtllib_softmac_start_protocol);
+
+void rtllib_start_protocol(struct rtllib_device *ieee)
+{
+ short ch = 0;
+ int i = 0;
+
+ rtllib_update_active_chan_map(ieee);
+
+ if (ieee->proto_started)
+ return;
+
+ ieee->proto_started = 1;
+
+ if (ieee->current_network.channel == 0) {
+ do {
+ ch++;
+ if (ch > MAX_CHANNEL_NUMBER)
+ return; /* no channel found */
+ } while (!ieee->active_channel_map[ch]);
+ ieee->current_network.channel = ch;
+ }
+
+ if (ieee->current_network.beacon_interval == 0)
+ ieee->current_network.beacon_interval = 100;
+
+ for (i = 0; i < 17; i++) {
+ ieee->last_rxseq_num[i] = -1;
+ ieee->last_rxfrag_num[i] = -1;
+ ieee->last_packet_time[i] = 0;
+ }
+
+ if (ieee->UpdateBeaconInterruptHandler)
+ ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
+
+ ieee->wmm_acm = 0;
+ /* if the user set the MAC of the ad-hoc cell and then
+ * switch to managed mode, shall we make sure that association
+ * attempts does not fail just because the user provide the essid
+ * and the nic is still checking for the AP MAC ??
+ */
+ if (ieee->iw_mode == IW_MODE_INFRA) {
+ rtllib_start_bss(ieee);
+ } else if (ieee->iw_mode == IW_MODE_ADHOC) {
+ if (ieee->UpdateBeaconInterruptHandler)
+ ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
+
+ rtllib_start_ibss(ieee);
+
+ } else if (ieee->iw_mode == IW_MODE_MASTER) {
+ rtllib_start_master_bss(ieee);
+ } else if (ieee->iw_mode == IW_MODE_MONITOR) {
+ rtllib_start_monitor_mode(ieee);
+ }
+}
+
+void rtllib_softmac_init(struct rtllib_device *ieee)
+{
+ int i;
+
+ memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
+
+ ieee->state = RTLLIB_NOLINK;
+ for (i = 0; i < 5; i++)
+ ieee->seq_ctrl[i] = 0;
+ ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
+ if (!ieee->pDot11dInfo)
+ RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
+ ieee->LinkDetectInfo.SlotIndex = 0;
+ ieee->LinkDetectInfo.SlotNum = 2;
+ ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
+ ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
+ ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
+ ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
+ ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
+ ieee->bIsAggregateFrame = false;
+ ieee->assoc_id = 0;
+ ieee->queue_stop = 0;
+ ieee->scanning_continue = 0;
+ ieee->softmac_features = 0;
+ ieee->wap_set = 0;
+ ieee->ssid_set = 0;
+ ieee->proto_started = 0;
+ ieee->proto_stoppping = 0;
+ ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
+ ieee->rate = 22;
+ ieee->ps = RTLLIB_PS_DISABLED;
+ ieee->sta_sleep = LPS_IS_WAKE;
+
+ ieee->Regdot11HTOperationalRateSet[0] = 0xff;
+ ieee->Regdot11HTOperationalRateSet[1] = 0xff;
+ ieee->Regdot11HTOperationalRateSet[4] = 0x01;
+
+ ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
+ ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
+ ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
+
+ ieee->FirstIe_InScan = false;
+ ieee->actscanning = false;
+ ieee->beinretry = false;
+ ieee->is_set_key = false;
+ init_mgmt_queue(ieee);
+
+ ieee->sta_edca_param[0] = 0x0000A403;
+ ieee->sta_edca_param[1] = 0x0000A427;
+ ieee->sta_edca_param[2] = 0x005E4342;
+ ieee->sta_edca_param[3] = 0x002F3262;
+ ieee->aggregation = true;
+ ieee->enable_rx_imm_BA = true;
+ ieee->tx_pending.txb = NULL;
+
+ _setup_timer(&ieee->associate_timer,
+ rtllib_associate_abort_cb,
+ (unsigned long) ieee);
+
+ _setup_timer(&ieee->beacon_timer,
+ rtllib_send_beacon_cb,
+ (unsigned long) ieee);
+
+
+ ieee->wq = create_workqueue(DRV_NAME);
+
+ INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
+ (void *)rtllib_link_change_wq, ieee);
+ INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
+ (void *)rtllib_start_ibss_wq, ieee);
+ INIT_WORK_RSL(&ieee->associate_complete_wq,
+ (void *)rtllib_associate_complete_wq, ieee);
+ INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
+ (void *)rtllib_associate_procedure_wq, ieee);
+ INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
+ (void *)rtllib_softmac_scan_wq, ieee);
+ INIT_DELAYED_WORK_RSL(&ieee->softmac_hint11d_wq,
+ (void *)rtllib_softmac_hint11d_wq, ieee);
+ INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
+ (void *)rtllib_associate_retry_wq, ieee);
+ INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
+ ieee);
+
+ sema_init(&ieee->wx_sem, 1);
+ sema_init(&ieee->scan_sem, 1);
+ sema_init(&ieee->ips_sem, 1);
+
+ spin_lock_init(&ieee->mgmt_tx_lock);
+ spin_lock_init(&ieee->beacon_lock);
+
+ tasklet_init(&ieee->ps_task,
+ (void(*)(unsigned long)) rtllib_sta_ps,
+ (unsigned long)ieee);
+
+}
+
+void rtllib_softmac_free(struct rtllib_device *ieee)
+{
+ down(&ieee->wx_sem);
+ kfree(ieee->pDot11dInfo);
+ ieee->pDot11dInfo = NULL;
+ del_timer_sync(&ieee->associate_timer);
+
+ cancel_delayed_work(&ieee->associate_retry_wq);
+ destroy_workqueue(ieee->wq);
+ up(&ieee->wx_sem);
+ tasklet_kill(&ieee->ps_task);
+}
+
+/********************************************************
+ * Start of WPA code. *
+ * this is stolen from the ipw2200 driver *
+ ********************************************************/
+
+
+static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
+{
+ /* This is called when wpa_supplicant loads and closes the driver
+ * interface.
+ */
+ netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
+ ieee->wpa_enabled = value;
+ memset(ieee->ap_mac_addr, 0, 6);
+ return 0;
+}
+
+
+static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
+ int wpa_ie_len)
+{
+ /* make sure WPA is enabled */
+ rtllib_wpa_enable(ieee, 1);
+
+ rtllib_disassociate(ieee);
+}
+
+
+static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
+{
+
+ int ret = 0;
+
+ switch (command) {
+ case IEEE_MLME_STA_DEAUTH:
+ break;
+
+ case IEEE_MLME_STA_DISASSOC:
+ rtllib_disassociate(ieee);
+ break;
+
+ default:
+ netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+
+static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
+ struct ieee_param *param, int plen)
+{
+ u8 *buf;
+
+ if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
+ (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
+ return -EINVAL;
+
+ if (param->u.wpa_ie.len) {
+ buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
+ GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ kfree(ieee->wpa_ie);
+ ieee->wpa_ie = buf;
+ ieee->wpa_ie_len = param->u.wpa_ie.len;
+ } else {
+ kfree(ieee->wpa_ie);
+ ieee->wpa_ie = NULL;
+ ieee->wpa_ie_len = 0;
+ }
+
+ rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
+ return 0;
+}
+
+#define AUTH_ALG_OPEN_SYSTEM 0x1
+#define AUTH_ALG_SHARED_KEY 0x2
+#define AUTH_ALG_LEAP 0x4
+static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
+{
+
+ struct rtllib_security sec = {
+ .flags = SEC_AUTH_MODE,
+ };
+
+ if (value & AUTH_ALG_SHARED_KEY) {
+ sec.auth_mode = WLAN_AUTH_SHARED_KEY;
+ ieee->open_wep = 0;
+ ieee->auth_mode = 1;
+ } else if (value & AUTH_ALG_OPEN_SYSTEM) {
+ sec.auth_mode = WLAN_AUTH_OPEN;
+ ieee->open_wep = 1;
+ ieee->auth_mode = 0;
+ } else if (value & AUTH_ALG_LEAP) {
+ sec.auth_mode = WLAN_AUTH_LEAP >> 6;
+ ieee->open_wep = 1;
+ ieee->auth_mode = 2;
+ }
+
+
+ if (ieee->set_security)
+ ieee->set_security(ieee->dev, &sec);
+
+ return 0;
+}
+
+static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ switch (name) {
+ case IEEE_PARAM_WPA_ENABLED:
+ ret = rtllib_wpa_enable(ieee, value);
+ break;
+
+ case IEEE_PARAM_TKIP_COUNTERMEASURES:
+ ieee->tkip_countermeasures = value;
+ break;
+
+ case IEEE_PARAM_DROP_UNENCRYPTED:
+ {
+ /* HACK:
+ *
+ * wpa_supplicant calls set_wpa_enabled when the driver
+ * is loaded and unloaded, regardless of if WPA is being
+ * used. No other calls are made which can be used to
+ * determine if encryption will be used or not prior to
+ * association being expected. If encryption is not being
+ * used, drop_unencrypted is set to false, else true -- we
+ * can use this to determine if the CAP_PRIVACY_ON bit should
+ * be set.
+ */
+ struct rtllib_security sec = {
+ .flags = SEC_ENABLED,
+ .enabled = value,
+ };
+ ieee->drop_unencrypted = value;
+ /* We only change SEC_LEVEL for open mode. Others
+ * are set by ipw_wpa_set_encryption.
+ */
+ if (!value) {
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_0;
+ } else {
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_1;
+ }
+ if (ieee->set_security)
+ ieee->set_security(ieee->dev, &sec);
+ break;
+ }
+
+ case IEEE_PARAM_PRIVACY_INVOKED:
+ ieee->privacy_invoked = value;
+ break;
+
+ case IEEE_PARAM_AUTH_ALGS:
+ ret = rtllib_wpa_set_auth_algs(ieee, value);
+ break;
+
+ case IEEE_PARAM_IEEE_802_1X:
+ ieee->ieee802_1x = value;
+ break;
+ case IEEE_PARAM_WPAX_SELECT:
+ spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
+ spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
+ break;
+
+ default:
+ netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+/* implementation borrowed from hostap driver */
+static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
+ struct ieee_param *param, int param_len,
+ u8 is_mesh)
+{
+ int ret = 0;
+ struct lib80211_crypto_ops *ops;
+ struct lib80211_crypt_data **crypt;
+
+ struct rtllib_security sec = {
+ .flags = 0,
+ };
+
+ param->u.crypt.err = 0;
+ param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
+
+ if (param_len !=
+ (int) ((char *) param->u.crypt.key - (char *) param) +
+ param->u.crypt.key_len) {
+ netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
+ param->u.crypt.key_len);
+ return -EINVAL;
+ }
+ if (is_broadcast_ether_addr(param->sta_addr)) {
+ if (param->u.crypt.idx >= NUM_WEP_KEYS)
+ return -EINVAL;
+ crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
+ } else {
+ return -EINVAL;
+ }
+
+ if (strcmp(param->u.crypt.alg, "none") == 0) {
+ if (crypt) {
+ sec.enabled = 0;
+ sec.level = SEC_LEVEL_0;
+ sec.flags |= SEC_ENABLED | SEC_LEVEL;
+ lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+ }
+ goto done;
+ }
+ sec.enabled = 1;
+ sec.flags |= SEC_ENABLED;
+
+ /* IPW HW cannot build TKIP MIC, host decryption still needed. */
+ if (!(ieee->host_encrypt || ieee->host_decrypt) &&
+ strcmp(param->u.crypt.alg, "R-TKIP"))
+ goto skip_host_crypt;
+
+ ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+ if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
+ request_module("rtllib_crypt_wep");
+ ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+ } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
+ request_module("rtllib_crypt_tkip");
+ ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+ } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
+ request_module("rtllib_crypt_ccmp");
+ ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+ }
+ if (ops == NULL) {
+ netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
+ param->u.crypt.alg);
+ param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
+ ret = -EINVAL;
+ goto done;
+ }
+ if (*crypt == NULL || (*crypt)->ops != ops) {
+ struct lib80211_crypt_data *new_crypt;
+
+ lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+
+ new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
+ if (new_crypt == NULL) {
+ ret = -ENOMEM;
+ goto done;
+ }
+ new_crypt->ops = ops;
+ if (new_crypt->ops)
+ new_crypt->priv =
+ new_crypt->ops->init(param->u.crypt.idx);
+
+ if (new_crypt->priv == NULL) {
+ kfree(new_crypt);
+ param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
+ ret = -EINVAL;
+ goto done;
+ }
+
+ *crypt = new_crypt;
+ }
+
+ if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
+ (*crypt)->ops->set_key(param->u.crypt.key,
+ param->u.crypt.key_len, param->u.crypt.seq,
+ (*crypt)->priv) < 0) {
+ netdev_info(ieee->dev, "key setting failed\n");
+ param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
+ ret = -EINVAL;
+ goto done;
+ }
+
+ skip_host_crypt:
+ if (param->u.crypt.set_tx) {
+ ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
+ sec.active_key = param->u.crypt.idx;
+ sec.flags |= SEC_ACTIVE_KEY;
+ } else
+ sec.flags &= ~SEC_ACTIVE_KEY;
+
+ if (param->u.crypt.alg != NULL) {
+ memcpy(sec.keys[param->u.crypt.idx],
+ param->u.crypt.key,
+ param->u.crypt.key_len);
+ sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
+ sec.flags |= (1 << param->u.crypt.idx);
+
+ if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_1;
+ } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_2;
+ } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_3;
+ }
+ }
+ done:
+ if (ieee->set_security)
+ ieee->set_security(ieee->dev, &sec);
+
+ /* Do not reset port if card is in Managed mode since resetting will
+ * generate new IEEE 802.11 authentication which may end up in looping
+ * with IEEE 802.1X. If your hardware requires a reset after WEP
+ * configuration (for example... Prism2), implement the reset_port in
+ * the callbacks structures used to initialize the 802.11 stack.
+ */
+ if (ieee->reset_on_keychange &&
+ ieee->iw_mode != IW_MODE_INFRA &&
+ ieee->reset_port &&
+ ieee->reset_port(ieee->dev)) {
+ netdev_info(ieee->dev, "reset_port failed\n");
+ param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+inline struct sk_buff *rtllib_disauth_skb(struct rtllib_network *beacon,
+ struct rtllib_device *ieee, u16 asRsn)
+{
+ struct sk_buff *skb;
+ struct rtllib_disauth *disauth;
+ int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
+
+ skb = dev_alloc_skb(len);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ disauth = (struct rtllib_disauth *) skb_put(skb,
+ sizeof(struct rtllib_disauth));
+ disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
+ disauth->header.duration_id = 0;
+
+ memcpy(disauth->header.addr1, beacon->bssid, ETH_ALEN);
+ memcpy(disauth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(disauth->header.addr3, beacon->bssid, ETH_ALEN);
+
+ disauth->reason = cpu_to_le16(asRsn);
+ return skb;
+}
+
+inline struct sk_buff *rtllib_disassociate_skb(struct rtllib_network *beacon,
+ struct rtllib_device *ieee, u16 asRsn)
+{
+ struct sk_buff *skb;
+ struct rtllib_disassoc *disass;
+ int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
+
+ skb = dev_alloc_skb(len);
+
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, ieee->tx_headroom);
+
+ disass = (struct rtllib_disassoc *) skb_put(skb,
+ sizeof(struct rtllib_disassoc));
+ disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
+ disass->header.duration_id = 0;
+
+ memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
+ memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
+ memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
+
+ disass->reason = cpu_to_le16(asRsn);
+ return skb;
+}
+
+void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
+{
+ struct rtllib_network *beacon = &ieee->current_network;
+ struct sk_buff *skb;
+
+ if (deauth)
+ skb = rtllib_disauth_skb(beacon, ieee, asRsn);
+ else
+ skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
+
+ if (skb)
+ softmac_mgmt_xmit(skb, ieee);
+}
+
+u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
+{
+ static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
+ static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
+ int wpa_ie_len = ieee->wpa_ie_len;
+ struct lib80211_crypt_data *crypt;
+ int encrypt;
+
+ crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
+ encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
+ || (ieee->host_encrypt && crypt && crypt->ops &&
+ (0 == strcmp(crypt->ops->name, "R-WEP")));
+
+ /* simply judge */
+ if (encrypt && (wpa_ie_len == 0)) {
+ return SEC_ALG_WEP;
+ } else if ((wpa_ie_len != 0)) {
+ if (((ieee->wpa_ie[0] == 0xdd) &&
+ (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
+ ((ieee->wpa_ie[0] == 0x30) &&
+ (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
+ return SEC_ALG_CCMP;
+ else
+ return SEC_ALG_TKIP;
+ } else {
+ return SEC_ALG_NONE;
+ }
+}
+
+int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
+ u8 is_mesh)
+{
+ struct ieee_param *param;
+ int ret = 0;
+
+ down(&ieee->wx_sem);
+
+ if (p->length < sizeof(struct ieee_param) || !p->pointer) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ param = memdup_user(p->pointer, p->length);
+ if (IS_ERR(param)) {
+ ret = PTR_ERR(param);
+ goto out;
+ }
+
+ switch (param->cmd) {
+ case IEEE_CMD_SET_WPA_PARAM:
+ ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
+ param->u.wpa_param.value);
+ break;
+
+ case IEEE_CMD_SET_WPA_IE:
+ ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
+ break;
+
+ case IEEE_CMD_SET_ENCRYPTION:
+ ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
+ break;
+
+ case IEEE_CMD_MLME:
+ ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
+ param->u.mlme.reason_code);
+ break;
+
+ default:
+ netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
+ param->cmd);
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ if (ret == 0 && copy_to_user(p->pointer, param, p->length))
+ ret = -EFAULT;
+
+ kfree(param);
+out:
+ up(&ieee->wx_sem);
+
+ return ret;
+}
+EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
+
+static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
+{
+ u8 OpMode;
+ u8 i;
+ bool bFilterOutNonAssociatedBSSID = false;
+
+ rtllib->state = RTLLIB_NOLINK;
+
+ for (i = 0; i < 6; i++)
+ rtllib->current_network.bssid[i] = 0x55;
+
+ rtllib->OpMode = RT_OP_MODE_NO_LINK;
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
+ rtllib->current_network.bssid);
+ OpMode = RT_OP_MODE_NO_LINK;
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
+ rtllib_stop_send_beacons(rtllib);
+
+ bFilterOutNonAssociatedBSSID = false;
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
+ (u8 *)(&bFilterOutNonAssociatedBSSID));
+ notify_wx_assoc_event(rtllib);
+
+}
+
+static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib, u8 *asSta,
+ u8 asRsn)
+{
+ u8 i;
+ u8 OpMode;
+
+ RemovePeerTS(rtllib, asSta);
+
+ if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
+ rtllib->state = RTLLIB_NOLINK;
+
+ for (i = 0; i < 6; i++)
+ rtllib->current_network.bssid[i] = 0x22;
+ OpMode = RT_OP_MODE_NO_LINK;
+ rtllib->OpMode = RT_OP_MODE_NO_LINK;
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
+ (u8 *)(&OpMode));
+ rtllib_disassociate(rtllib);
+
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
+ rtllib->current_network.bssid);
+
+ }
+
+}
+
+static void
+rtllib_MgntDisconnectAP(
+ struct rtllib_device *rtllib,
+ u8 asRsn
+)
+{
+ bool bFilterOutNonAssociatedBSSID = false;
+
+ bFilterOutNonAssociatedBSSID = false;
+ rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
+ (u8 *)(&bFilterOutNonAssociatedBSSID));
+ rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
+ asRsn);
+
+ rtllib->state = RTLLIB_NOLINK;
+}
+
+bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
+{
+ if (rtllib->ps != RTLLIB_PS_DISABLED)
+ rtllib->sta_wake_up(rtllib->dev);
+
+ if (rtllib->state == RTLLIB_LINKED) {
+ if (rtllib->iw_mode == IW_MODE_ADHOC)
+ rtllib_MgntDisconnectIBSS(rtllib);
+ if (rtllib->iw_mode == IW_MODE_INFRA)
+ rtllib_MgntDisconnectAP(rtllib, asRsn);
+
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(rtllib_MgntDisconnect);
+
+void notify_wx_assoc_event(struct rtllib_device *ieee)
+{
+ union iwreq_data wrqu;
+
+ if (ieee->cannot_notify)
+ return;
+
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ if (ieee->state == RTLLIB_LINKED)
+ memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
+ ETH_ALEN);
+ else {
+
+ netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
+ __func__);
+ eth_zero_addr(wrqu.ap_addr.sa_data);
+ }
+ wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
+}
+EXPORT_SYMBOL(notify_wx_assoc_event);
Code Review / kvmfornfv.git / blobdiff