/* src/prism2/driver/prism2mgmt.c
*
* Management request handler functions.
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License version 2 (the "GPL"), in which
* case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* info@linux-wlan.com
* http://www.linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*
* The functions in this file handle management requests sent from
* user mode.
*
* Most of these functions have two separate blocks of code that are
* conditional on whether this is a station or an AP. This is used
* to separate out the STA and AP responses to these management primitives.
* It's a choice (good, bad, indifferent?) to have the code in the same
* place so it's clear that the same primitive is implemented in both
* cases but has different behavior.
*
* --------------------------------------------------------------------
*/
#include <linux/if_arp.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/wireless.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <asm/byteorder.h>
#include <linux/random.h>
#include <linux/usb.h>
#include <linux/bitops.h>
#include "p80211types.h"
#include "p80211hdr.h"
#include "p80211mgmt.h"
#include "p80211conv.h"
#include "p80211msg.h"
#include "p80211netdev.h"
#include "p80211metadef.h"
#include "p80211metastruct.h"
#include "hfa384x.h"
#include "prism2mgmt.h"
/* Converts 802.11 format rate specifications to prism2 */
#define p80211rate_to_p2bit(n) ((((n)&~BIT(7)) == 2) ? BIT(0) : \
(((n)&~BIT(7)) == 4) ? BIT(1) : \
(((n)&~BIT(7)) == 11) ? BIT(2) : \
(((n)&~BIT(7)) == 22) ? BIT(3) : 0)
/*----------------------------------------------------------------
* prism2mgmt_scan
*
* Initiate a scan for BSSs.
*
* This function corresponds to MLME-scan.request and part of
* MLME-scan.confirm. As far as I can tell in the standard, there
* are no restrictions on when a scan.request may be issued. We have
* to handle in whatever state the driver/MAC happen to be.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_scan(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
hfa384x_t *hw = wlandev->priv;
struct p80211msg_dot11req_scan *msg = msgp;
u16 roamingmode, word;
int i, timeout;
int istmpenable = 0;
hfa384x_HostScanRequest_data_t scanreq;
/* gatekeeper check */
if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
hw->ident_sta_fw.minor,
hw->ident_sta_fw.variant) <
HFA384x_FIRMWARE_VERSION(1, 3, 2)) {
printk(KERN_ERR
"HostScan not supported with current firmware (<1.3.2).\n");
result = 1;
msg->resultcode.data = P80211ENUM_resultcode_not_supported;
goto exit;
}
memset(&scanreq, 0, sizeof(scanreq));
/* save current roaming mode */
result = hfa384x_drvr_getconfig16(hw,
HFA384x_RID_CNFROAMINGMODE,
&roamingmode);
if (result) {
printk(KERN_ERR "getconfig(ROAMMODE) failed. result=%d\n",
result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* drop into mode 3 for the scan */
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFROAMINGMODE,
HFA384x_ROAMMODE_HOSTSCAN_HOSTROAM);
if (result) {
printk(KERN_ERR "setconfig(ROAMINGMODE) failed. result=%d\n",
result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* active or passive? */
if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
hw->ident_sta_fw.minor,
hw->ident_sta_fw.variant) >
HFA384x_FIRMWARE_VERSION(1, 5, 0)) {
if (msg->scantype.data != P80211ENUM_scantype_active)
word = cpu_to_le16(msg->maxchanneltime.data);
else
word = 0;
result =
hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFPASSIVESCANCTRL,
word);
if (result) {
printk(KERN_WARNING "Passive scan not supported with "
"current firmware. (<1.5.1)\n");
}
}
/* set up the txrate to be 2MBPS. Should be fastest basicrate... */
word = HFA384x_RATEBIT_2;
scanreq.txRate = cpu_to_le16(word);
/* set up the channel list */
word = 0;
for (i = 0; i < msg->channellist.data.len; i++) {
u8 channel = msg->channellist.data.data[i];
if (channel > 14)
continue;
/* channel 1 is BIT 0 ... channel 14 is BIT 13 */
word |= (1 << (channel - 1));
}
scanreq.channelList = cpu_to_le16(word);
/* set up the ssid, if present. */
scanreq.ssid.len = cpu_to_le16(msg->ssid.data.len);
memcpy(scanreq.ssid.data, msg->ssid.data.data, msg->ssid.data.len);
/* Enable the MAC port if it's not already enabled */
result = hfa384x_drvr_getconfig16(hw, HFA384x_RID_PORTSTATUS, &word);
if (result) {
printk(KERN_ERR "getconfig(PORTSTATUS) failed. "
"result=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
if (word == HFA384x_PORTSTATUS_DISABLED) {
u16 wordbuf[17];
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFROAMINGMODE,
HFA384x_ROAMMODE_HOSTSCAN_HOSTROAM);
if (result) {
printk(KERN_ERR
"setconfig(ROAMINGMODE) failed. result=%d\n",
result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* Construct a bogus SSID and assign it to OwnSSID and
* DesiredSSID
*/
wordbuf[0] = cpu_to_le16(WLAN_SSID_MAXLEN);
get_random_bytes(&wordbuf[1], WLAN_SSID_MAXLEN);
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_CNFOWNSSID,
wordbuf,
HFA384x_RID_CNFOWNSSID_LEN);
if (result) {
printk(KERN_ERR "Failed to set OwnSSID.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_CNFDESIREDSSID,
wordbuf,
HFA384x_RID_CNFDESIREDSSID_LEN);
if (result) {
printk(KERN_ERR "Failed to set DesiredSSID.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* bsstype */
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFPORTTYPE,
HFA384x_PORTTYPE_IBSS);
if (result) {
printk(KERN_ERR "Failed to set CNFPORTTYPE.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* ibss options */
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CREATEIBSS,
HFA384x_CREATEIBSS_JOINCREATEIBSS);
if (result) {
printk(KERN_ERR "Failed to set CREATEIBSS.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
result = hfa384x_drvr_enable(hw, 0);
if (result) {
printk(KERN_ERR "drvr_enable(0) failed. "
"result=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
istmpenable = 1;
}
/* Figure out our timeout first Kus, then HZ */
timeout = msg->channellist.data.len * msg->maxchanneltime.data;
timeout = (timeout * HZ) / 1000;
/* Issue the scan request */
hw->scanflag = 0;
result = hfa384x_drvr_setconfig(hw,
HFA384x_RID_HOSTSCAN, &scanreq,
sizeof(hfa384x_HostScanRequest_data_t));
if (result) {
printk(KERN_ERR "setconfig(SCANREQUEST) failed. result=%d\n",
result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
/* sleep until info frame arrives */
wait_event_interruptible_timeout(hw->cmdq, hw->scanflag, timeout);
msg->numbss.status = P80211ENUM_msgitem_status_data_ok;
if (hw->scanflag == -1)
hw->scanflag = 0;
msg->numbss.data = hw->scanflag;
hw->scanflag = 0;
/* Disable port if we temporarily enabled it. */
if (istmpenable) {
result = hfa384x_drvr_disable(hw, 0);
if (result) {
printk(KERN_ERR "drvr_disable(0) failed. "
"result=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
}
/* restore original roaming mode */
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFROAMINGMODE,
roamingmode);
if (result) {
printk(KERN_ERR "setconfig(ROAMMODE) failed. result=%d\n",
result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
goto exit;
}
result = 0;
msg->resultcode.data = P80211ENUM_resultcode_success;
exit:
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
return result;
}
/*----------------------------------------------------------------
* prism2mgmt_scan_results
*
* Retrieve the BSS description for one of the BSSs identified in
* a scan.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_scan_results(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
struct p80211msg_dot11req_scan_results *req;
hfa384x_t *hw = wlandev->priv;
hfa384x_HScanResultSub_t *item = NULL;
int count;
req = (struct p80211msg_dot11req_scan_results *) msgp;
req->resultcode.status = P80211ENUM_msgitem_status_data_ok;
if (!hw->scanresults) {
printk(KERN_ERR
"dot11req_scan_results can only be used after a successful dot11req_scan.\n");
result = 2;
req->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
goto exit;
}
count = (hw->scanresults->framelen - 3) / 32;
if (count > HFA384x_SCANRESULT_MAX)
count = HFA384x_SCANRESULT_MAX;
if (req->bssindex.data >= count) {
pr_debug("requested index (%d) out of range (%d)\n",
req->bssindex.data, count);
result = 2;
req->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
goto exit;
}
item = &(hw->scanresults->info.hscanresult.result[req->bssindex.data]);
/* signal and noise */
req->signal.status = P80211ENUM_msgitem_status_data_ok;
req->noise.status = P80211ENUM_msgitem_status_data_ok;
req->signal.data = le16_to_cpu(item->sl);
req->noise.data = le16_to_cpu(item->anl);
/* BSSID */
req->bssid.status = P80211ENUM_msgitem_status_data_ok;
req->bssid.data.len = WLAN_BSSID_LEN;
memcpy(req->bssid.data.data, item->bssid, WLAN_BSSID_LEN);
/* SSID */
req->ssid.status = P80211ENUM_msgitem_status_data_ok;
req->ssid.data.len = le16_to_cpu(item->ssid.len);
req->ssid.data.len = min_t(u16, req->ssid.data.len, WLAN_SSID_MAXLEN);
memcpy(req->ssid.data.data, item->ssid.data, req->ssid.data.len);
/* supported rates */
for (count = 0; count < 10; count++)
if (item->supprates[count] == 0)
break;
#define REQBASICRATE(N) \
do { \
if ((count >= N) && DOT11_RATE5_ISBASIC_GET( \
item->supprates[(N)-1])) { \
req->basicrate ## N .data = item->supprates[(N)-1]; \
req->basicrate ## N .status = \
P80211ENUM_msgitem_status_data_ok; \
} \
} while (0)
REQBASICRATE(1);
REQBASICRATE(2);
REQBASICRATE(3);
REQBASICRATE(4);
REQBASICRATE(5);
REQBASICRATE(6);
REQBASICRATE(7);
REQBASICRATE(8);
#define REQSUPPRATE(N) \
do { \
if (count >= N) { \
req->supprate ## N .data = item->supprates[(N)-1]; \
req->supprate ## N .status = \
P80211ENUM_msgitem_status_data_ok; \
} \
} while (0)
REQSUPPRATE(1);
REQSUPPRATE(2);
REQSUPPRATE(3);
REQSUPPRATE(4);
REQSUPPRATE(5);
REQSUPPRATE(6);
REQSUPPRATE(7);
REQSUPPRATE(8);
/* beacon period */
req->beaconperiod.status = P80211ENUM_msgitem_status_data_ok;
req->beaconperiod.data = le16_to_cpu(item->bcnint);
/* timestamps */
req->timestamp.status = P80211ENUM_msgitem_status_data_ok;
req->timestamp.data = jiffies;
req->localtime.status = P80211ENUM_msgitem_status_data_ok;
req->localtime.data = jiffies;
/* atim window */
req->ibssatimwindow.status = P80211ENUM_msgitem_status_data_ok;
req->ibssatimwindow.data = le16_to_cpu(item->atim);
/* Channel */
req->dschannel.status = P80211ENUM_msgitem_status_data_ok;
req->dschannel.data = le16_to_cpu(item->chid);
/* capinfo bits */
count = le16_to_cpu(item->capinfo);
req->capinfo.status = P80211ENUM_msgitem_status_data_ok;
req->capinfo.data = count;
/* privacy flag */
req->privacy.status = P80211ENUM_msgitem_status_data_ok;
req->privacy.data = WLAN_GET_MGMT_CAP_INFO_PRIVACY(count);
/* cfpollable */
req->cfpollable.status = P80211ENUM_msgitem_status_data_ok;
req->cfpollable.data = WLAN_GET_MGMT_CAP_INFO_CFPOLLABLE(count);
/* cfpollreq */
req->cfpollreq.status = P80211ENUM_msgitem_status_data_ok;
req->cfpollreq.data = WLAN_GET_MGMT_CAP_INFO_CFPOLLREQ(count);
/* bsstype */
req->bsstype.status = P80211ENUM_msgitem_status_data_ok;
req->bsstype.data = (WLAN_GET_MGMT_CAP_INFO_ESS(count)) ?
P80211ENUM_bsstype_infrastructure : P80211ENUM_bsstype_independent;
result = 0;
req->resultcode.data = P80211ENUM_resultcode_success;
exit:
return result;
}
/*----------------------------------------------------------------
* prism2mgmt_start
*
* Start a BSS. Any station can do this for IBSS, only AP for ESS.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_start(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
hfa384x_t *hw = wlandev->priv;
struct p80211msg_dot11req_start *msg = msgp;
p80211pstrd_t *pstr;
u8 bytebuf[80];
hfa384x_bytestr_t *p2bytestr = (hfa384x_bytestr_t *) bytebuf;
u16 word;
wlandev->macmode = WLAN_MACMODE_NONE;
/* Set the SSID */
memcpy(&wlandev->ssid, &msg->ssid.data, sizeof(msg->ssid.data));
/*** ADHOC IBSS ***/
/* see if current f/w is less than 8c3 */
if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
hw->ident_sta_fw.minor,
hw->ident_sta_fw.variant) <
HFA384x_FIRMWARE_VERSION(0, 8, 3)) {
/* Ad-Hoc not quite supported on Prism2 */
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
msg->resultcode.data = P80211ENUM_resultcode_not_supported;
goto done;
}
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
/*** STATION ***/
/* Set the REQUIRED config items */
/* SSID */
pstr = (p80211pstrd_t *) &(msg->ssid.data);
prism2mgmt_pstr2bytestr(p2bytestr, pstr);
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_CNFOWNSSID,
bytebuf, HFA384x_RID_CNFOWNSSID_LEN);
if (result) {
printk(KERN_ERR "Failed to set CnfOwnSSID\n");
goto failed;
}
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_CNFDESIREDSSID,
bytebuf,
HFA384x_RID_CNFDESIREDSSID_LEN);
if (result) {
printk(KERN_ERR "Failed to set CnfDesiredSSID\n");
goto failed;
}
/* bsstype - we use the default in the ap firmware */
/* IBSS port */
hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFPORTTYPE, 0);
/* beacon period */
word = msg->beaconperiod.data;
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFAPBCNint, word);
if (result) {
printk(KERN_ERR "Failed to set beacon period=%d.\n", word);
goto failed;
}
/* dschannel */
word = msg->dschannel.data;
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFOWNCHANNEL, word);
if (result) {
printk(KERN_ERR "Failed to set channel=%d.\n", word);
goto failed;
}
/* Basic rates */
word = p80211rate_to_p2bit(msg->basicrate1.data);
if (msg->basicrate2.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate2.data);
if (msg->basicrate3.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate3.data);
if (msg->basicrate4.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate4.data);
if (msg->basicrate5.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate5.data);
if (msg->basicrate6.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate6.data);
if (msg->basicrate7.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate7.data);
if (msg->basicrate8.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->basicrate8.data);
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFBASICRATES, word);
if (result) {
printk(KERN_ERR "Failed to set basicrates=%d.\n", word);
goto failed;
}
/* Operational rates (supprates and txratecontrol) */
word = p80211rate_to_p2bit(msg->operationalrate1.data);
if (msg->operationalrate2.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate2.data);
if (msg->operationalrate3.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate3.data);
if (msg->operationalrate4.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate4.data);
if (msg->operationalrate5.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate5.data);
if (msg->operationalrate6.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate6.data);
if (msg->operationalrate7.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate7.data);
if (msg->operationalrate8.status == P80211ENUM_msgitem_status_data_ok)
word |= p80211rate_to_p2bit(msg->operationalrate8.data);
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFSUPPRATES, word);
if (result) {
printk(KERN_ERR "Failed to set supprates=%d.\n", word);
goto failed;
}
result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_TXRATECNTL, word);
if (result) {
printk(KERN_ERR "Failed to set txrates=%d.\n", word);
goto failed;
}
/* Set the macmode so the frame setup code knows what to do */
if (msg->bsstype.data == P80211ENUM_bsstype_independent) {
wlandev->macmode = WLAN_MACMODE_IBSS_STA;
/* lets extend the data length a bit */
hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN, 2304);
}
/* Enable the Port */
result = hfa384x_drvr_enable(hw, 0);
if (result) {
printk(KERN_ERR "Enable macport failed, result=%d.\n", result);
goto failed;
}
msg->resultcode.data = P80211ENUM_resultcode_success;
goto done;
failed:
pr_debug("Failed to set a config option, result=%d\n", result);
msg->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
done:
result = 0;
return result;
}
/*----------------------------------------------------------------
* prism2mgmt_readpda
*
* Collect the PDA data and put it in the message.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
----------------------------------------------------------------*/
int prism2mgmt_readpda(wlandevice_t *wlandev, void *msgp)
{
hfa384x_t *hw = wlandev->priv;
struct p80211msg_p2req_readpda *msg = msgp;
int result;
/* We only support collecting the PDA when in the FWLOAD
* state.
*/
if (wlandev->msdstate != WLAN_MSD_FWLOAD) {
printk(KERN_ERR
"PDA may only be read " "in the fwload state.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
} else {
/* Call drvr_readpda(), it handles the auxport enable
* and validating the returned PDA.
*/
result = hfa384x_drvr_readpda(hw,
msg->pda.data,
HFA384x_PDA_LEN_MAX);
if (result) {
printk(KERN_ERR
"hfa384x_drvr_readpda() failed, "
"result=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status =
P80211ENUM_msgitem_status_data_ok;
return 0;
}
msg->pda.status = P80211ENUM_msgitem_status_data_ok;
msg->resultcode.data = P80211ENUM_resultcode_success;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
}
return 0;
}
/*----------------------------------------------------------------
* prism2mgmt_ramdl_state
*
* Establishes the beginning/end of a card RAM download session.
*
* It is expected that the ramdl_write() function will be called
* one or more times between the 'enable' and 'disable' calls to
* this function.
*
* Note: This function should not be called when a mac comm port
* is active.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
----------------------------------------------------------------*/
int prism2mgmt_ramdl_state(wlandevice_t *wlandev, void *msgp)
{
hfa384x_t *hw = wlandev->priv;
struct p80211msg_p2req_ramdl_state *msg = msgp;
if (wlandev->msdstate != WLAN_MSD_FWLOAD) {
printk(KERN_ERR
"ramdl_state(): may only be called "
"in the fwload state.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
return 0;
}
/*
** Note: Interrupts are locked out if this is an AP and are NOT
** locked out if this is a station.
*/
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
if (msg->enable.data == P80211ENUM_truth_true) {
if (hfa384x_drvr_ramdl_enable(hw, msg->exeaddr.data)) {
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
} else {
msg->resultcode.data = P80211ENUM_resultcode_success;
}
} else {
hfa384x_drvr_ramdl_disable(hw);
msg->resultcode.data = P80211ENUM_resultcode_success;
}
return 0;
}
/*----------------------------------------------------------------
* prism2mgmt_ramdl_write
*
* Writes a buffer to the card RAM using the download state. This
* is for writing code to card RAM. To just read or write raw data
* use the aux functions.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
----------------------------------------------------------------*/
int prism2mgmt_ramdl_write(wlandevice_t *wlandev, void *msgp)
{
hfa384x_t *hw = wlandev->priv;
struct p80211msg_p2req_ramdl_write *msg = msgp;
u32 addr;
u32 len;
u8 *buf;
if (wlandev->msdstate != WLAN_MSD_FWLOAD) {
printk(KERN_ERR
"ramdl_write(): may only be called "
"in the fwload state.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
return 0;
}
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
/* first validate the length */
if (msg->len.data > sizeof(msg->data.data)) {
msg->resultcode.status =
P80211ENUM_resultcode_invalid_parameters;
return 0;
}
/* call the hfa384x function to do the write */
addr = msg->addr.data;
len = msg->len.data;
buf = msg->data.data;
if (hfa384x_drvr_ramdl_write(hw, addr, buf, len))
msg->resultcode.data = P80211ENUM_resultcode_refused;
msg->resultcode.data = P80211ENUM_resultcode_success;
return 0;
}
/*----------------------------------------------------------------
* prism2mgmt_flashdl_state
*
* Establishes the beginning/end of a card Flash download session.
*
* It is expected that the flashdl_write() function will be called
* one or more times between the 'enable' and 'disable' calls to
* this function.
*
* Note: This function should not be called when a mac comm port
* is active.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
----------------------------------------------------------------*/
int prism2mgmt_flashdl_state(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
hfa384x_t *hw = wlandev->priv;
struct p80211msg_p2req_flashdl_state *msg = msgp;
if (wlandev->msdstate != WLAN_MSD_FWLOAD) {
printk(KERN_ERR
"flashdl_state(): may only be called "
"in the fwload state.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
return 0;
}
/*
** Note: Interrupts are locked out if this is an AP and are NOT
** locked out if this is a station.
*/
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
if (msg->enable.data == P80211ENUM_truth_true) {
if (hfa384x_drvr_flashdl_enable(hw)) {
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
} else {
msg->resultcode.data = P80211ENUM_resultcode_success;
}
} else {
hfa384x_drvr_flashdl_disable(hw);
msg->resultcode.data = P80211ENUM_resultcode_success;
/* NOTE: At this point, the MAC is in the post-reset
* state and the driver is in the fwload state.
* We need to get the MAC back into the fwload
* state. To do this, we set the nsdstate to HWPRESENT
* and then call the ifstate function to redo everything
* that got us into the fwload state.
*/
wlandev->msdstate = WLAN_MSD_HWPRESENT;
result = prism2sta_ifstate(wlandev, P80211ENUM_ifstate_fwload);
if (result != P80211ENUM_resultcode_success) {
printk(KERN_ERR "prism2sta_ifstate(fwload) failed,"
"P80211ENUM_resultcode=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
result = -1;
}
}
return 0;
}
/*----------------------------------------------------------------
* prism2mgmt_flashdl_write
*
*
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
----------------------------------------------------------------*/
int prism2mgmt_flashdl_write(wlandevice_t *wlandev, void *msgp)
{
hfa384x_t *hw = wlandev->priv;
struct p80211msg_p2req_flashdl_write *msg = msgp;
u32 addr;
u32 len;
u8 *buf;
if (wlandev->msdstate != WLAN_MSD_FWLOAD) {
printk(KERN_ERR
"flashdl_write(): may only be called "
"in the fwload state.\n");
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
return 0;
}
/*
** Note: Interrupts are locked out if this is an AP and are NOT
** locked out if this is a station.
*/
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
/* first validate the length */
if (msg->len.data > sizeof(msg->data.data)) {
msg->resultcode.status =
P80211ENUM_resultcode_invalid_parameters;
return 0;
}
/* call the hfa384x function to do the write */
addr = msg->addr.data;
len = msg->len.data;
buf = msg->data.data;
if (hfa384x_drvr_flashdl_write(hw, addr, buf, len))
msg->resultcode.data = P80211ENUM_resultcode_refused;
msg->resultcode.data = P80211ENUM_resultcode_success;
return 0;
}
/*----------------------------------------------------------------
* prism2mgmt_autojoin
*
* Associate with an ESS.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_autojoin(wlandevice_t *wlandev, void *msgp)
{
hfa384x_t *hw = wlandev->priv;
int result = 0;
u16 reg;
u16 port_type;
struct p80211msg_lnxreq_autojoin *msg = msgp;
p80211pstrd_t *pstr;
u8 bytebuf[256];
hfa384x_bytestr_t *p2bytestr = (hfa384x_bytestr_t *) bytebuf;
wlandev->macmode = WLAN_MACMODE_NONE;
/* Set the SSID */
memcpy(&wlandev->ssid, &msg->ssid.data, sizeof(msg->ssid.data));
/* Disable the Port */
hfa384x_drvr_disable(hw, 0);
/*** STATION ***/
/* Set the TxRates */
hfa384x_drvr_setconfig16(hw, HFA384x_RID_TXRATECNTL, 0x000f);
/* Set the auth type */
if (msg->authtype.data == P80211ENUM_authalg_sharedkey)
reg = HFA384x_CNFAUTHENTICATION_SHAREDKEY;
else
reg = HFA384x_CNFAUTHENTICATION_OPENSYSTEM;
hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFAUTHENTICATION, reg);
/* Set the ssid */
memset(bytebuf, 0, 256);
pstr = (p80211pstrd_t *) &(msg->ssid.data);
prism2mgmt_pstr2bytestr(p2bytestr, pstr);
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_CNFDESIREDSSID,
bytebuf,
HFA384x_RID_CNFDESIREDSSID_LEN);
port_type = HFA384x_PORTTYPE_BSS;
/* Set the PortType */
hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFPORTTYPE, port_type);
/* Enable the Port */
hfa384x_drvr_enable(hw, 0);
/* Set the resultcode */
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
msg->resultcode.data = P80211ENUM_resultcode_success;
return result;
}
/*----------------------------------------------------------------
* prism2mgmt_wlansniff
*
* Start or stop sniffing.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_wlansniff(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
struct p80211msg_lnxreq_wlansniff *msg = msgp;
hfa384x_t *hw = wlandev->priv;
u16 word;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
switch (msg->enable.data) {
case P80211ENUM_truth_false:
/* Confirm that we're in monitor mode */
if (wlandev->netdev->type == ARPHRD_ETHER) {
msg->resultcode.data =
P80211ENUM_resultcode_invalid_parameters;
result = 0;
goto exit;
}
/* Disable monitor mode */
result = hfa384x_cmd_monitor(hw, HFA384x_MONITOR_DISABLE);
if (result) {
pr_debug("failed to disable monitor mode, result=%d\n",
result);
goto failed;
}
/* Disable port 0 */
result = hfa384x_drvr_disable(hw, 0);
if (result) {
pr_debug
("failed to disable port 0 after sniffing, result=%d\n",
result);
goto failed;
}
/* Clear the driver state */
wlandev->netdev->type = ARPHRD_ETHER;
/* Restore the wepflags */
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFWEPFLAGS,
hw->presniff_wepflags);
if (result) {
pr_debug
("failed to restore wepflags=0x%04x, result=%d\n",
hw->presniff_wepflags, result);
goto failed;
}
/* Set the port to its prior type and enable (if necessary) */
if (hw->presniff_port_type != 0) {
word = hw->presniff_port_type;
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFPORTTYPE,
word);
if (result) {
pr_debug
("failed to restore porttype, result=%d\n",
result);
goto failed;
}
/* Enable the port */
result = hfa384x_drvr_enable(hw, 0);
if (result) {
pr_debug("failed to enable port to presniff setting, result=%d\n",
result);
goto failed;
}
} else {
result = hfa384x_drvr_disable(hw, 0);
}
printk(KERN_INFO "monitor mode disabled\n");
msg->resultcode.data = P80211ENUM_resultcode_success;
result = 0;
goto exit;
break;
case P80211ENUM_truth_true:
/* Disable the port (if enabled), only check Port 0 */
if (hw->port_enabled[0]) {
if (wlandev->netdev->type == ARPHRD_ETHER) {
/* Save macport 0 state */
result = hfa384x_drvr_getconfig16(hw,
HFA384x_RID_CNFPORTTYPE,
&(hw->presniff_port_type));
if (result) {
pr_debug
("failed to read porttype, result=%d\n",
result);
goto failed;
}
/* Save the wepflags state */
result = hfa384x_drvr_getconfig16(hw,
HFA384x_RID_CNFWEPFLAGS,
&(hw->presniff_wepflags));
if (result) {
pr_debug
("failed to read wepflags, result=%d\n",
result);
goto failed;
}
hfa384x_drvr_stop(hw);
result = hfa384x_drvr_start(hw);
if (result) {
pr_debug("failed to restart the card for sniffing, result=%d\n",
result);
goto failed;
}
} else {
/* Disable the port */
result = hfa384x_drvr_disable(hw, 0);
if (result) {
pr_debug("failed to enable port for sniffing, result=%d\n",
result);
goto failed;
}
}
} else {
hw->presniff_port_type = 0;
}
/* Set the channel we wish to sniff */
word = msg->channel.data;
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFOWNCHANNEL,
word);
hw->sniff_channel = word;
if (result) {
pr_debug("failed to set channel %d, result=%d\n",
word, result);
goto failed;
}
/* Now if we're already sniffing, we can skip the rest */
if (wlandev->netdev->type != ARPHRD_ETHER) {
/* Set the port type to pIbss */
word = HFA384x_PORTTYPE_PSUEDOIBSS;
result = hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFPORTTYPE,
word);
if (result) {
pr_debug
("failed to set porttype %d, result=%d\n",
word, result);
goto failed;
}
if ((msg->keepwepflags.status ==
P80211ENUM_msgitem_status_data_ok)
&& (msg->keepwepflags.data !=
P80211ENUM_truth_true)) {
/* Set the wepflags for no decryption */
word = HFA384x_WEPFLAGS_DISABLE_TXCRYPT |
HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
result =
hfa384x_drvr_setconfig16(hw,
HFA384x_RID_CNFWEPFLAGS,
word);
}
if (result) {
pr_debug
("failed to set wepflags=0x%04x, result=%d\n",
word, result);
goto failed;
}
}
/* Do we want to strip the FCS in monitor mode? */
if ((msg->stripfcs.status == P80211ENUM_msgitem_status_data_ok)
&& (msg->stripfcs.data == P80211ENUM_truth_true)) {
hw->sniff_fcs = 0;
} else {
hw->sniff_fcs = 1;
}
/* Do we want to truncate the packets? */
if (msg->packet_trunc.status ==
P80211ENUM_msgitem_status_data_ok) {
hw->sniff_truncate = msg->packet_trunc.data;
} else {
hw->sniff_truncate = 0;
}
/* Enable the port */
result = hfa384x_drvr_enable(hw, 0);
if (result) {
pr_debug
("failed to enable port for sniffing, result=%d\n",
result);
goto failed;
}
/* Enable monitor mode */
result = hfa384x_cmd_monitor(hw, HFA384x_MONITOR_ENABLE);
if (result) {
pr_debug("failed to enable monitor mode, result=%d\n",
result);
goto failed;
}
if (wlandev->netdev->type == ARPHRD_ETHER)
printk(KERN_INFO "monitor mode enabled\n");
/* Set the driver state */
/* Do we want the prism2 header? */
if ((msg->prismheader.status ==
P80211ENUM_msgitem_status_data_ok)
&& (msg->prismheader.data == P80211ENUM_truth_true)) {
hw->sniffhdr = 0;
wlandev->netdev->type = ARPHRD_IEEE80211_PRISM;
} else
if ((msg->wlanheader.status ==
P80211ENUM_msgitem_status_data_ok)
&& (msg->wlanheader.data == P80211ENUM_truth_true)) {
hw->sniffhdr = 1;
wlandev->netdev->type = ARPHRD_IEEE80211_PRISM;
} else {
wlandev->netdev->type = ARPHRD_IEEE80211;
}
msg->resultcode.data = P80211ENUM_resultcode_success;
result = 0;
goto exit;
break;
default:
msg->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
result = 0;
goto exit;
break;
}
failed:
msg->resultcode.data = P80211ENUM_resultcode_refused;
result = 0;
exit:
return result;
}