1 files changed, 0 insertions, 509 deletions

diff --git a/drivers/net/wireless/intersil/hostap/hostap_info.c b/drivers/net/wireless/intersil/hostap/hostap_info.c
deleted file mode 100644
index da8c30f10d92..000000000000
--- a/drivers/net/wireless/intersil/hostap/hostap_info.c
+++ /dev/null
@@ -1,509 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Host AP driver Info Frame processing (part of hostap.o module) */
-
-#include <linux/if_arp.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <linux/etherdevice.h>
-#include "hostap_wlan.h"
-#include "hostap.h"
-#include "hostap_ap.h"
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_commtallies16(local_info_t *local, unsigned char *buf,
-				      int left)
-{
-	struct hfa384x_comm_tallies *tallies;
-
-	if (left < sizeof(struct hfa384x_comm_tallies)) {
-		printk(KERN_DEBUG "%s: too short (len=%d) commtallies "
-		       "info frame\n", local->dev->name, left);
-		return;
-	}
-
-	tallies = (struct hfa384x_comm_tallies *) buf;
-#define ADD_COMM_TALLIES(name) \
-local->comm_tallies.name += le16_to_cpu(tallies->name)
-	ADD_COMM_TALLIES(tx_unicast_frames);
-	ADD_COMM_TALLIES(tx_multicast_frames);
-	ADD_COMM_TALLIES(tx_fragments);
-	ADD_COMM_TALLIES(tx_unicast_octets);
-	ADD_COMM_TALLIES(tx_multicast_octets);
-	ADD_COMM_TALLIES(tx_deferred_transmissions);
-	ADD_COMM_TALLIES(tx_single_retry_frames);
-	ADD_COMM_TALLIES(tx_multiple_retry_frames);
-	ADD_COMM_TALLIES(tx_retry_limit_exceeded);
-	ADD_COMM_TALLIES(tx_discards);
-	ADD_COMM_TALLIES(rx_unicast_frames);
-	ADD_COMM_TALLIES(rx_multicast_frames);
-	ADD_COMM_TALLIES(rx_fragments);
-	ADD_COMM_TALLIES(rx_unicast_octets);
-	ADD_COMM_TALLIES(rx_multicast_octets);
-	ADD_COMM_TALLIES(rx_fcs_errors);
-	ADD_COMM_TALLIES(rx_discards_no_buffer);
-	ADD_COMM_TALLIES(tx_discards_wrong_sa);
-	ADD_COMM_TALLIES(rx_discards_wep_undecryptable);
-	ADD_COMM_TALLIES(rx_message_in_msg_fragments);
-	ADD_COMM_TALLIES(rx_message_in_bad_msg_fragments);
-#undef ADD_COMM_TALLIES
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_commtallies32(local_info_t *local, unsigned char *buf,
-				      int left)
-{
-	struct hfa384x_comm_tallies32 *tallies;
-
-	if (left < sizeof(struct hfa384x_comm_tallies32)) {
-		printk(KERN_DEBUG "%s: too short (len=%d) commtallies32 "
-		       "info frame\n", local->dev->name, left);
-		return;
-	}
-
-	tallies = (struct hfa384x_comm_tallies32 *) buf;
-#define ADD_COMM_TALLIES(name) \
-local->comm_tallies.name += le32_to_cpu(tallies->name)
-	ADD_COMM_TALLIES(tx_unicast_frames);
-	ADD_COMM_TALLIES(tx_multicast_frames);
-	ADD_COMM_TALLIES(tx_fragments);
-	ADD_COMM_TALLIES(tx_unicast_octets);
-	ADD_COMM_TALLIES(tx_multicast_octets);
-	ADD_COMM_TALLIES(tx_deferred_transmissions);
-	ADD_COMM_TALLIES(tx_single_retry_frames);
-	ADD_COMM_TALLIES(tx_multiple_retry_frames);
-	ADD_COMM_TALLIES(tx_retry_limit_exceeded);
-	ADD_COMM_TALLIES(tx_discards);
-	ADD_COMM_TALLIES(rx_unicast_frames);
-	ADD_COMM_TALLIES(rx_multicast_frames);
-	ADD_COMM_TALLIES(rx_fragments);
-	ADD_COMM_TALLIES(rx_unicast_octets);
-	ADD_COMM_TALLIES(rx_multicast_octets);
-	ADD_COMM_TALLIES(rx_fcs_errors);
-	ADD_COMM_TALLIES(rx_discards_no_buffer);
-	ADD_COMM_TALLIES(tx_discards_wrong_sa);
-	ADD_COMM_TALLIES(rx_discards_wep_undecryptable);
-	ADD_COMM_TALLIES(rx_message_in_msg_fragments);
-	ADD_COMM_TALLIES(rx_message_in_bad_msg_fragments);
-#undef ADD_COMM_TALLIES
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_commtallies(local_info_t *local, unsigned char *buf,
-				    int left)
-{
-	if (local->tallies32)
-		prism2_info_commtallies32(local, buf, left);
-	else
-		prism2_info_commtallies16(local, buf, left);
-}
-
-
-#ifndef PRISM2_NO_STATION_MODES
-#ifndef PRISM2_NO_DEBUG
-static const char* hfa384x_linkstatus_str(u16 linkstatus)
-{
-	switch (linkstatus) {
-	case HFA384X_LINKSTATUS_CONNECTED:
-		return "Connected";
-	case HFA384X_LINKSTATUS_DISCONNECTED:
-		return "Disconnected";
-	case HFA384X_LINKSTATUS_AP_CHANGE:
-		return "Access point change";
-	case HFA384X_LINKSTATUS_AP_OUT_OF_RANGE:
-		return "Access point out of range";
-	case HFA384X_LINKSTATUS_AP_IN_RANGE:
-		return "Access point in range";
-	case HFA384X_LINKSTATUS_ASSOC_FAILED:
-		return "Association failed";
-	default:
-		return "Unknown";
-	}
-}
-#endif /* PRISM2_NO_DEBUG */
-
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_linkstatus(local_info_t *local, unsigned char *buf,
-				    int left)
-{
-	u16 val;
-	int non_sta_mode;
-
-	/* Alloc new JoinRequests to occur since LinkStatus for the previous
-	 * has been received */
-	local->last_join_time = 0;
-
-	if (left != 2) {
-		printk(KERN_DEBUG "%s: invalid linkstatus info frame "
-		       "length %d\n", local->dev->name, left);
-		return;
-	}
-
-	non_sta_mode = local->iw_mode == IW_MODE_MASTER ||
-		local->iw_mode == IW_MODE_REPEAT ||
-		local->iw_mode == IW_MODE_MONITOR;
-
-	val = buf[0] | (buf[1] << 8);
-	if (!non_sta_mode || val != HFA384X_LINKSTATUS_DISCONNECTED) {
-		PDEBUG(DEBUG_EXTRA, "%s: LinkStatus=%d (%s)\n",
-		       local->dev->name, val, hfa384x_linkstatus_str(val));
-	}
-
-	if (non_sta_mode) {
-		netif_carrier_on(local->dev);
-		netif_carrier_on(local->ddev);
-		return;
-	}
-
-	/* Get current BSSID later in scheduled task */
-	set_bit(PRISM2_INFO_PENDING_LINKSTATUS, &local->pending_info);
-	local->prev_link_status = val;
-	schedule_work(&local->info_queue);
-}
-
-
-static void prism2_host_roaming(local_info_t *local)
-{
-	struct hfa384x_join_request req;
-	struct net_device *dev = local->dev;
-	struct hfa384x_hostscan_result *selected, *entry;
-	int i;
-	unsigned long flags;
-
-	if (local->last_join_time &&
-	    time_before(jiffies, local->last_join_time + 10 * HZ)) {
-		PDEBUG(DEBUG_EXTRA, "%s: last join request has not yet been "
-		       "completed - waiting for it before issuing new one\n",
-		       dev->name);
-		return;
-	}
-
-	/* ScanResults are sorted: first ESS results in decreasing signal
-	 * quality then IBSS results in similar order.
-	 * Trivial roaming policy: just select the first entry.
-	 * This could probably be improved by adding hysteresis to limit
-	 * number of handoffs, etc.
-	 *
-	 * Could do periodic RID_SCANREQUEST or Inquire F101 to get new
-	 * ScanResults */
-	spin_lock_irqsave(&local->lock, flags);
-	if (local->last_scan_results == NULL ||
-	    local->last_scan_results_count == 0) {
-		spin_unlock_irqrestore(&local->lock, flags);
-		PDEBUG(DEBUG_EXTRA, "%s: no scan results for host roaming\n",
-		       dev->name);
-		return;
-	}
-
-	selected = &local->last_scan_results[0];
-
-	if (local->preferred_ap[0] || local->preferred_ap[1] ||
-	    local->preferred_ap[2] || local->preferred_ap[3] ||
-	    local->preferred_ap[4] || local->preferred_ap[5]) {
-		/* Try to find preferred AP */
-		PDEBUG(DEBUG_EXTRA, "%s: Preferred AP BSSID %pM\n",
-		       dev->name, local->preferred_ap);
-		for (i = 0; i < local->last_scan_results_count; i++) {
-			entry = &local->last_scan_results[i];
-			if (memcmp(local->preferred_ap, entry->bssid, 6) == 0)
-			{
-				PDEBUG(DEBUG_EXTRA, "%s: using preferred AP "
-				       "selection\n", dev->name);
-				selected = entry;
-				break;
-			}
-		}
-	}
-
-	memcpy(req.bssid, selected->bssid, ETH_ALEN);
-	req.channel = selected->chid;
-	spin_unlock_irqrestore(&local->lock, flags);
-
-	PDEBUG(DEBUG_EXTRA, "%s: JoinRequest: BSSID=%pM"
-	       " channel=%d\n",
-	       dev->name, req.bssid, le16_to_cpu(req.channel));
-	if (local->func->set_rid(dev, HFA384X_RID_JOINREQUEST, &req,
-				 sizeof(req))) {
-		printk(KERN_DEBUG "%s: JoinRequest failed\n", dev->name);
-	}
-	local->last_join_time = jiffies;
-}
-
-
-static void hostap_report_scan_complete(local_info_t *local)
-{
-	union iwreq_data wrqu;
-
-	/* Inform user space about new scan results (just empty event,
-	 * SIOCGIWSCAN can be used to fetch data */
-	wrqu.data.length = 0;
-	wrqu.data.flags = 0;
-	wireless_send_event(local->dev, SIOCGIWSCAN, &wrqu, NULL);
-
-	/* Allow SIOCGIWSCAN handling to occur since we have received
-	 * scanning result */
-	local->scan_timestamp = 0;
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_scanresults(local_info_t *local, unsigned char *buf,
-				    int left)
-{
-	u16 *pos;
-	int new_count, i;
-	unsigned long flags;
-	struct hfa384x_scan_result *res;
-	struct hfa384x_hostscan_result *results, *prev;
-
-	if (left < 4) {
-		printk(KERN_DEBUG "%s: invalid scanresult info frame "
-		       "length %d\n", local->dev->name, left);
-		return;
-	}
-
-	pos = (u16 *) buf;
-	pos++;
-	pos++;
-	left -= 4;
-
-	new_count = left / sizeof(struct hfa384x_scan_result);
-	results = kmalloc_array(new_count,
-				sizeof(struct hfa384x_hostscan_result),
-				GFP_ATOMIC);
-	if (results == NULL)
-		return;
-
-	/* Convert to hostscan result format. */
-	res = (struct hfa384x_scan_result *) pos;
-	for (i = 0; i < new_count; i++) {
-		memcpy(&results[i], &res[i],
-		       sizeof(struct hfa384x_scan_result));
-		results[i].atim = 0;
-	}
-
-	spin_lock_irqsave(&local->lock, flags);
-	local->last_scan_type = PRISM2_SCAN;
-	prev = local->last_scan_results;
-	local->last_scan_results = results;
-	local->last_scan_results_count = new_count;
-	spin_unlock_irqrestore(&local->lock, flags);
-	kfree(prev);
-
-	hostap_report_scan_complete(local);
-
-	/* Perform rest of ScanResults handling later in scheduled task */
-	set_bit(PRISM2_INFO_PENDING_SCANRESULTS, &local->pending_info);
-	schedule_work(&local->info_queue);
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static void prism2_info_hostscanresults(local_info_t *local,
-					unsigned char *buf, int left)
-{
-	int i, result_size, copy_len, new_count;
-	struct hfa384x_hostscan_result *results, *prev;
-	unsigned long flags;
-	__le16 *pos;
-	u8 *ptr;
-
-	wake_up_interruptible(&local->hostscan_wq);
-
-	if (left < 4) {
-		printk(KERN_DEBUG "%s: invalid hostscanresult info frame "
-		       "length %d\n", local->dev->name, left);
-		return;
-	}
-
-	pos = (__le16 *) buf;
-	copy_len = result_size = le16_to_cpu(*pos);
-	if (result_size == 0) {
-		printk(KERN_DEBUG "%s: invalid result_size (0) in "
-		       "hostscanresults\n", local->dev->name);
-		return;
-	}
-	if (copy_len > sizeof(struct hfa384x_hostscan_result))
-		copy_len = sizeof(struct hfa384x_hostscan_result);
-
-	pos++;
-	pos++;
-	left -= 4;
-	ptr = (u8 *) pos;
-
-	new_count = left / result_size;
-	results = kcalloc(new_count, sizeof(struct hfa384x_hostscan_result),
-			  GFP_ATOMIC);
-	if (results == NULL)
-		return;
-
-	for (i = 0; i < new_count; i++) {
-		memcpy(&results[i], ptr, copy_len);
-		ptr += result_size;
-		left -= result_size;
-	}
-
-	if (left) {
-		printk(KERN_DEBUG "%s: short HostScan result entry (%d/%d)\n",
-		       local->dev->name, left, result_size);
-	}
-
-	spin_lock_irqsave(&local->lock, flags);
-	local->last_scan_type = PRISM2_HOSTSCAN;
-	prev = local->last_scan_results;
-	local->last_scan_results = results;
-	local->last_scan_results_count = new_count;
-	spin_unlock_irqrestore(&local->lock, flags);
-	kfree(prev);
-
-	hostap_report_scan_complete(local);
-}
-#endif /* PRISM2_NO_STATION_MODES */
-
-
-/* Called only as a tasklet (software IRQ) */
-void hostap_info_process(local_info_t *local, struct sk_buff *skb)
-{
-	struct hfa384x_info_frame *info;
-	unsigned char *buf;
-	int left;
-#ifndef PRISM2_NO_DEBUG
-	int i;
-#endif /* PRISM2_NO_DEBUG */
-
-	info = (struct hfa384x_info_frame *) skb->data;
-	buf = skb->data + sizeof(*info);
-	left = skb->len - sizeof(*info);
-
-	switch (le16_to_cpu(info->type)) {
-	case HFA384X_INFO_COMMTALLIES:
-		prism2_info_commtallies(local, buf, left);
-		break;
-
-#ifndef PRISM2_NO_STATION_MODES
-	case HFA384X_INFO_LINKSTATUS:
-		prism2_info_linkstatus(local, buf, left);
-		break;
-
-	case HFA384X_INFO_SCANRESULTS:
-		prism2_info_scanresults(local, buf, left);
-		break;
-
-	case HFA384X_INFO_HOSTSCANRESULTS:
-		prism2_info_hostscanresults(local, buf, left);
-		break;
-#endif /* PRISM2_NO_STATION_MODES */
-
-#ifndef PRISM2_NO_DEBUG
-	default:
-		PDEBUG(DEBUG_EXTRA, "%s: INFO - len=%d type=0x%04x\n",
-		       local->dev->name, le16_to_cpu(info->len),
-		       le16_to_cpu(info->type));
-		PDEBUG(DEBUG_EXTRA, "Unknown info frame:");
-		for (i = 0; i < (left < 100 ? left : 100); i++)
-			PDEBUG2(DEBUG_EXTRA, " %02x", buf[i]);
-		PDEBUG2(DEBUG_EXTRA, "\n");
-		break;
-#endif /* PRISM2_NO_DEBUG */
-	}
-}
-
-
-#ifndef PRISM2_NO_STATION_MODES
-static void handle_info_queue_linkstatus(local_info_t *local)
-{
-	int val = local->prev_link_status;
-	int connected;
-	union iwreq_data wrqu;
-
-	connected =
-		val == HFA384X_LINKSTATUS_CONNECTED ||
-		val == HFA384X_LINKSTATUS_AP_CHANGE ||
-		val == HFA384X_LINKSTATUS_AP_IN_RANGE;
-
-	if (local->func->get_rid(local->dev, HFA384X_RID_CURRENTBSSID,
-				 local->bssid, ETH_ALEN, 1) < 0) {
-		printk(KERN_DEBUG "%s: could not read CURRENTBSSID after "
-		       "LinkStatus event\n", local->dev->name);
-	} else {
-		PDEBUG(DEBUG_EXTRA, "%s: LinkStatus: BSSID=%pM\n",
-		       local->dev->name,
-		       (unsigned char *) local->bssid);
-		if (local->wds_type & HOSTAP_WDS_AP_CLIENT)
-			hostap_add_sta(local->ap, local->bssid);
-	}
-
-	/* Get BSSID if we have a valid AP address */
-	if (connected) {
-		netif_carrier_on(local->dev);
-		netif_carrier_on(local->ddev);
-		memcpy(wrqu.ap_addr.sa_data, local->bssid, ETH_ALEN);
-	} else {
-		netif_carrier_off(local->dev);
-		netif_carrier_off(local->ddev);
-		eth_zero_addr(wrqu.ap_addr.sa_data);
-	}
-	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
-
-	/*
-	 * Filter out sequential disconnect events in order not to cause a
-	 * flood of SIOCGIWAP events that have a race condition with EAPOL
-	 * frames and can confuse wpa_supplicant about the current association
-	 * status.
-	 */
-	if (connected || local->prev_linkstatus_connected)
-		wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
-	local->prev_linkstatus_connected = connected;
-}
-
-
-static void handle_info_queue_scanresults(local_info_t *local)
-{
-	if (local->host_roaming == 1 && local->iw_mode == IW_MODE_INFRA)
-		prism2_host_roaming(local);
-
-	if (local->host_roaming == 2 && local->iw_mode == IW_MODE_INFRA &&
-	    !is_zero_ether_addr(local->preferred_ap)) {
-		/*
-		 * Firmware seems to be getting into odd state in host_roaming
-		 * mode 2 when hostscan is used without join command, so try
-		 * to fix this by re-joining the current AP. This does not
-		 * actually trigger a new association if the current AP is
-		 * still in the scan results.
-		 */
-		prism2_host_roaming(local);
-	}
-}
-
-
-/* Called only as scheduled task after receiving info frames (used to avoid
- * pending too much time in HW IRQ handler). */
-static void handle_info_queue(struct work_struct *work)
-{
-	local_info_t *local = container_of(work, local_info_t, info_queue);
-
-	if (test_and_clear_bit(PRISM2_INFO_PENDING_LINKSTATUS,
-			       &local->pending_info))
-		handle_info_queue_linkstatus(local);
-
-	if (test_and_clear_bit(PRISM2_INFO_PENDING_SCANRESULTS,
-			       &local->pending_info))
-		handle_info_queue_scanresults(local);
-}
-#endif /* PRISM2_NO_STATION_MODES */
-
-
-void hostap_info_init(local_info_t *local)
-{
-	skb_queue_head_init(&local->info_list);
-#ifndef PRISM2_NO_STATION_MODES
-	INIT_WORK(&local->info_queue, handle_info_queue);
-#endif /* PRISM2_NO_STATION_MODES */
-}
-
-
-EXPORT_SYMBOL(hostap_info_init);
-EXPORT_SYMBOL(hostap_info_process);