1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
2 /* src/prism2/driver/prism2mib.c
3  *
4  * Management request for mibset/mibget
5  *
6  * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
7  * --------------------------------------------------------------------
8  *
9  * linux-wlan
10  *
11  *   The contents of this file are subject to the Mozilla Public
12  *   License Version 1.1 (the "License"); you may not use this file
13  *   except in compliance with the License. You may obtain a copy of
14  *   the License at http://www.mozilla.org/MPL/
15  *
16  *   Software distributed under the License is distributed on an "AS
17  *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
18  *   implied. See the License for the specific language governing
19  *   rights and limitations under the License.
20  *
21  *   Alternatively, the contents of this file may be used under the
22  *   terms of the GNU Public License version 2 (the "GPL"), in which
23  *   case the provisions of the GPL are applicable instead of the
24  *   above.  If you wish to allow the use of your version of this file
25  *   only under the terms of the GPL and not to allow others to use
26  *   your version of this file under the MPL, indicate your decision
27  *   by deleting the provisions above and replace them with the notice
28  *   and other provisions required by the GPL.  If you do not delete
29  *   the provisions above, a recipient may use your version of this
30  *   file under either the MPL or the GPL.
31  *
32  * --------------------------------------------------------------------
33  *
34  * Inquiries regarding the linux-wlan Open Source project can be
35  * made directly to:
36  *
37  * AbsoluteValue Systems Inc.
38  * info@linux-wlan.com
39  * http://www.linux-wlan.com
40  *
41  * --------------------------------------------------------------------
42  *
43  * Portions of the development of this software were funded by
44  * Intersil Corporation as part of PRISM(R) chipset product development.
45  *
46  * --------------------------------------------------------------------
47  *
48  * The functions in this file handle the mibset/mibget management
49  * functions.
50  *
51  * --------------------------------------------------------------------
52  */
53 
54 #include <linux/module.h>
55 #include <linux/kernel.h>
56 #include <linux/sched.h>
57 #include <linux/types.h>
58 #include <linux/wireless.h>
59 #include <linux/netdevice.h>
60 #include <linux/io.h>
61 #include <linux/delay.h>
62 #include <asm/byteorder.h>
63 #include <linux/usb.h>
64 #include <linux/bitops.h>
65 
66 #include "p80211types.h"
67 #include "p80211hdr.h"
68 #include "p80211mgmt.h"
69 #include "p80211conv.h"
70 #include "p80211msg.h"
71 #include "p80211netdev.h"
72 #include "p80211metadef.h"
73 #include "p80211metastruct.h"
74 #include "hfa384x.h"
75 #include "prism2mgmt.h"
76 
77 #define MIB_TMP_MAXLEN    200	/* Max length of RID record (in bytes). */
78 
79 #define  F_STA        0x1	/* MIB is supported on stations. */
80 #define  F_READ       0x2	/* MIB may be read. */
81 #define  F_WRITE      0x4	/* MIB may be written. */
82 
83 struct mibrec {
84 	u32 did;
85 	u16 flag;
86 	u16 parm1;
87 	u16 parm2;
88 	u16 parm3;
89 	int (*func)(struct mibrec *mib,
90 		     int isget,
91 		     struct wlandevice *wlandev,
92 		     struct hfa384x *hw,
93 		     struct p80211msg_dot11req_mibset *msg, void *data);
94 };
95 
96 static int prism2mib_bytearea2pstr(struct mibrec *mib,
97 				   int isget,
98 				   struct wlandevice *wlandev,
99 				   struct hfa384x *hw,
100 				   struct p80211msg_dot11req_mibset *msg,
101 				   void *data);
102 
103 static int prism2mib_uint32(struct mibrec *mib,
104 			    int isget,
105 			    struct wlandevice *wlandev,
106 			    struct hfa384x *hw,
107 			    struct p80211msg_dot11req_mibset *msg, void *data);
108 
109 static int prism2mib_flag(struct mibrec *mib,
110 			  int isget,
111 			  struct wlandevice *wlandev,
112 			  struct hfa384x *hw,
113 			  struct p80211msg_dot11req_mibset *msg, void *data);
114 
115 static int prism2mib_wepdefaultkey(struct mibrec *mib,
116 				   int isget,
117 				   struct wlandevice *wlandev,
118 				   struct hfa384x *hw,
119 				   struct p80211msg_dot11req_mibset *msg,
120 				   void *data);
121 
122 static int prism2mib_privacyinvoked(struct mibrec *mib,
123 				    int isget,
124 				    struct wlandevice *wlandev,
125 				    struct hfa384x *hw,
126 				    struct p80211msg_dot11req_mibset *msg,
127 				    void *data);
128 
129 static int prism2mib_excludeunencrypted(struct mibrec *mib,
130 					int isget,
131 					struct wlandevice *wlandev,
132 					struct hfa384x *hw,
133 					struct p80211msg_dot11req_mibset *msg,
134 					void *data);
135 
136 static int prism2mib_fragmentationthreshold(struct mibrec *mib,
137 					    int isget,
138 					    struct wlandevice *wlandev,
139 					    struct hfa384x *hw,
140 					    struct p80211msg_dot11req_mibset *msg,
141 					    void *data);
142 
143 static int prism2mib_priv(struct mibrec *mib,
144 			  int isget,
145 			  struct wlandevice *wlandev,
146 			  struct hfa384x *hw,
147 			  struct p80211msg_dot11req_mibset *msg, void *data);
148 
149 static struct mibrec mibtab[] = {
150 	/* dot11smt MIB's */
151 	{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(1),
152 	 F_STA | F_WRITE,
153 	 HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
154 	 prism2mib_wepdefaultkey},
155 	{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(2),
156 	 F_STA | F_WRITE,
157 	 HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
158 	 prism2mib_wepdefaultkey},
159 	{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(3),
160 	 F_STA | F_WRITE,
161 	 HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
162 	 prism2mib_wepdefaultkey},
163 	{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(4),
164 	 F_STA | F_WRITE,
165 	 HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
166 	 prism2mib_wepdefaultkey},
167 	{DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
168 	 F_STA | F_READ | F_WRITE,
169 	 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
170 	 prism2mib_privacyinvoked},
171 	{DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
172 	 F_STA | F_READ | F_WRITE,
173 	 HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
174 	 prism2mib_uint32},
175 	{DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
176 	 F_STA | F_READ | F_WRITE,
177 	 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
178 	 prism2mib_excludeunencrypted},
179 
180 	/* dot11mac MIB's */
181 
182 	{DIDmib_dot11mac_dot11OperationTable_dot11MACAddress,
183 	 F_STA | F_READ | F_WRITE,
184 	 HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
185 	 prism2mib_bytearea2pstr},
186 	{DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
187 	 F_STA | F_READ | F_WRITE,
188 	 HFA384x_RID_RTSTHRESH, 0, 0,
189 	 prism2mib_uint32},
190 	{DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit,
191 	 F_STA | F_READ,
192 	 HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
193 	 prism2mib_uint32},
194 	{DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit,
195 	 F_STA | F_READ,
196 	 HFA384x_RID_LONGRETRYLIMIT, 0, 0,
197 	 prism2mib_uint32},
198 	{DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
199 	 F_STA | F_READ | F_WRITE,
200 	 HFA384x_RID_FRAGTHRESH, 0, 0,
201 	 prism2mib_fragmentationthreshold},
202 	{DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime,
203 	 F_STA | F_READ,
204 	 HFA384x_RID_MAXTXLIFETIME, 0, 0,
205 	 prism2mib_uint32},
206 
207 	/* dot11phy MIB's */
208 
209 	{DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
210 	 F_STA | F_READ,
211 	 HFA384x_RID_CURRENTCHANNEL, 0, 0,
212 	 prism2mib_uint32},
213 	{DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
214 	 F_STA | F_READ | F_WRITE,
215 	 HFA384x_RID_TXPOWERMAX, 0, 0,
216 	 prism2mib_uint32},
217 
218 	/* p2Static MIB's */
219 
220 	{DIDmib_p2_p2Static_p2CnfPortType,
221 	 F_STA | F_READ | F_WRITE,
222 	 HFA384x_RID_CNFPORTTYPE, 0, 0,
223 	 prism2mib_uint32},
224 
225 	/* p2MAC MIB's */
226 
227 	{DIDmib_p2_p2MAC_p2CurrentTxRate,
228 	 F_STA | F_READ,
229 	 HFA384x_RID_CURRENTTXRATE, 0, 0,
230 	 prism2mib_uint32},
231 
232 	/* And finally, lnx mibs */
233 	{DIDmib_lnx_lnxConfigTable_lnxRSNAIE,
234 	 F_STA | F_READ | F_WRITE,
235 	 HFA384x_RID_CNFWPADATA, 0, 0,
236 	 prism2mib_priv},
237 	{0, 0, 0, 0, 0, NULL}
238 };
239 
240 /*
241  * prism2mgmt_mibset_mibget
242  *
243  * Set the value of a mib item.
244  *
245  * Arguments:
246  *	wlandev		wlan device structure
247  *	msgp		ptr to msg buffer
248  *
249  * Returns:
250  *	0	success and done
251  *	<0	success, but we're waiting for something to finish.
252  *	>0	an error occurred while handling the message.
253  * Side effects:
254  *
255  * Call context:
256  *	process thread  (usually)
257  *	interrupt
258  */
259 
260 int prism2mgmt_mibset_mibget(struct wlandevice *wlandev, void *msgp)
261 {
262 	struct hfa384x *hw = wlandev->priv;
263 	int result, isget;
264 	struct mibrec *mib;
265 
266 	u16 which;
267 
268 	struct p80211msg_dot11req_mibset *msg = msgp;
269 	struct p80211itemd *mibitem;
270 
271 	msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
272 	msg->resultcode.data = P80211ENUM_resultcode_success;
273 
274 	/*
275 	 ** Determine if this is an Access Point or a station.
276 	 */
277 
278 	which = F_STA;
279 
280 	/*
281 	 ** Find the MIB in the MIB table.  Note that a MIB may be in the
282 	 ** table twice...once for an AP and once for a station.  Make sure
283 	 ** to get the correct one.  Note that DID=0 marks the end of the
284 	 ** MIB table.
285 	 */
286 
287 	mibitem = (struct p80211itemd *)msg->mibattribute.data;
288 
289 	for (mib = mibtab; mib->did != 0; mib++)
290 		if (mib->did == mibitem->did && (mib->flag & which))
291 			break;
292 
293 	if (mib->did == 0) {
294 		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
295 		goto done;
296 	}
297 
298 	/*
299 	 ** Determine if this is a "mibget" or a "mibset".  If this is a
300 	 ** "mibget", then make sure that the MIB may be read.  Otherwise,
301 	 ** this is a "mibset" so make make sure that the MIB may be written.
302 	 */
303 
304 	isget = (msg->msgcode == DIDmsg_dot11req_mibget);
305 
306 	if (isget) {
307 		if (!(mib->flag & F_READ)) {
308 			msg->resultcode.data =
309 			    P80211ENUM_resultcode_cant_get_writeonly_mib;
310 			goto done;
311 		}
312 	} else {
313 		if (!(mib->flag & F_WRITE)) {
314 			msg->resultcode.data =
315 			    P80211ENUM_resultcode_cant_set_readonly_mib;
316 			goto done;
317 		}
318 	}
319 
320 	/*
321 	 ** Execute the MIB function.  If things worked okay, then make
322 	 ** sure that the MIB function also worked okay.  If so, and this
323 	 ** is a "mibget", then the status value must be set for both the
324 	 ** "mibattribute" parameter and the mib item within the data
325 	 ** portion of the "mibattribute".
326 	 */
327 
328 	result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
329 
330 	if (msg->resultcode.data == P80211ENUM_resultcode_success) {
331 		if (result != 0) {
332 			pr_debug("get/set failure, result=%d\n", result);
333 			msg->resultcode.data =
334 			    P80211ENUM_resultcode_implementation_failure;
335 		} else {
336 			if (isget) {
337 				msg->mibattribute.status =
338 				    P80211ENUM_msgitem_status_data_ok;
339 				mibitem->status =
340 				    P80211ENUM_msgitem_status_data_ok;
341 			}
342 		}
343 	}
344 
345 done:
346 	return 0;
347 }
348 
349 /*
350  * prism2mib_bytearea2pstr
351  *
352  * Get/set pstr data to/from a byte area.
353  *
354  * MIB record parameters:
355  *       parm1    Prism2 RID value.
356  *       parm2    Number of bytes of RID data.
357  *       parm3    Not used.
358  *
359  * Arguments:
360  *       mib      MIB record.
361  *       isget    MIBGET/MIBSET flag.
362  *       wlandev  wlan device structure.
363  *       priv     "priv" structure.
364  *       hw       "hw" structure.
365  *       msg      Message structure.
366  *       data     Data buffer.
367  *
368  * Returns:
369  *       0   - Success.
370  *       ~0  - Error.
371  *
372  */
373 
374 static int prism2mib_bytearea2pstr(struct mibrec *mib,
375 				   int isget,
376 				   struct wlandevice *wlandev,
377 				   struct hfa384x *hw,
378 				   struct p80211msg_dot11req_mibset *msg,
379 				   void *data)
380 {
381 	int result;
382 	struct p80211pstrd *pstr = data;
383 	u8 bytebuf[MIB_TMP_MAXLEN];
384 
385 	if (isget) {
386 		result =
387 		    hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
388 		prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
389 	} else {
390 		memset(bytebuf, 0, mib->parm2);
391 		memcpy(bytebuf, pstr->data, pstr->len);
392 		result =
393 		    hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
394 	}
395 
396 	return result;
397 }
398 
399 /*
400  * prism2mib_uint32
401  *
402  * Get/set uint32 data.
403  *
404  * MIB record parameters:
405  *       parm1    Prism2 RID value.
406  *       parm2    Not used.
407  *       parm3    Not used.
408  *
409  * Arguments:
410  *       mib      MIB record.
411  *       isget    MIBGET/MIBSET flag.
412  *       wlandev  wlan device structure.
413  *       priv     "priv" structure.
414  *       hw       "hw" structure.
415  *       msg      Message structure.
416  *       data     Data buffer.
417  *
418  * Returns:
419  *       0   - Success.
420  *       ~0  - Error.
421  *
422  */
423 
424 static int prism2mib_uint32(struct mibrec *mib,
425 			    int isget,
426 			    struct wlandevice *wlandev,
427 			    struct hfa384x *hw,
428 			    struct p80211msg_dot11req_mibset *msg, void *data)
429 {
430 	int result;
431 	u32 *uint32 = data;
432 	u8 bytebuf[MIB_TMP_MAXLEN];
433 	u16 *wordbuf = (u16 *)bytebuf;
434 
435 	if (isget) {
436 		result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
437 		*uint32 = *wordbuf;
438 	} else {
439 		*wordbuf = *uint32;
440 		result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
441 	}
442 
443 	return result;
444 }
445 
446 /*
447  * prism2mib_flag
448  *
449  * Get/set a flag.
450  *
451  * MIB record parameters:
452  *       parm1    Prism2 RID value.
453  *       parm2    Bit to get/set.
454  *       parm3    Not used.
455  *
456  * Arguments:
457  *       mib      MIB record.
458  *       isget    MIBGET/MIBSET flag.
459  *       wlandev  wlan device structure.
460  *       priv     "priv" structure.
461  *       hw       "hw" structure.
462  *       msg      Message structure.
463  *       data     Data buffer.
464  *
465  * Returns:
466  *       0   - Success.
467  *       ~0  - Error.
468  *
469  */
470 
471 static int prism2mib_flag(struct mibrec *mib,
472 			  int isget,
473 			  struct wlandevice *wlandev,
474 			  struct hfa384x *hw,
475 			  struct p80211msg_dot11req_mibset *msg, void *data)
476 {
477 	int result;
478 	u32 *uint32 = data;
479 	u8 bytebuf[MIB_TMP_MAXLEN];
480 	u16 *wordbuf = (u16 *)bytebuf;
481 	u32 flags;
482 
483 	result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
484 	if (result == 0) {
485 		flags = *wordbuf;
486 		if (isget) {
487 			*uint32 = (flags & mib->parm2) ?
488 			    P80211ENUM_truth_true : P80211ENUM_truth_false;
489 		} else {
490 			if ((*uint32) == P80211ENUM_truth_true)
491 				flags |= mib->parm2;
492 			else
493 				flags &= ~mib->parm2;
494 			*wordbuf = flags;
495 			result =
496 			    hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
497 		}
498 	}
499 
500 	return result;
501 }
502 
503 /*
504  * prism2mib_wepdefaultkey
505  *
506  * Get/set WEP default keys.
507  *
508  * MIB record parameters:
509  *       parm1    Prism2 RID value.
510  *       parm2    Number of bytes of RID data.
511  *       parm3    Not used.
512  *
513  * Arguments:
514  *       mib      MIB record.
515  *       isget    MIBGET/MIBSET flag.
516  *       wlandev  wlan device structure.
517  *       priv     "priv" structure.
518  *       hw       "hw" structure.
519  *       msg      Message structure.
520  *       data     Data buffer.
521  *
522  * Returns:
523  *       0   - Success.
524  *       ~0  - Error.
525  *
526  */
527 
528 static int prism2mib_wepdefaultkey(struct mibrec *mib,
529 				   int isget,
530 				   struct wlandevice *wlandev,
531 				   struct hfa384x *hw,
532 				   struct p80211msg_dot11req_mibset *msg,
533 				   void *data)
534 {
535 	int result;
536 	struct p80211pstrd *pstr = data;
537 	u8 bytebuf[MIB_TMP_MAXLEN];
538 	u16 len;
539 
540 	if (isget) {
541 		result = 0;	/* Should never happen. */
542 	} else {
543 		len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
544 		    HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
545 		memset(bytebuf, 0, len);
546 		memcpy(bytebuf, pstr->data, pstr->len);
547 		result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
548 	}
549 
550 	return result;
551 }
552 
553 /*
554  * prism2mib_privacyinvoked
555  *
556  * Get/set the dot11PrivacyInvoked value.
557  *
558  * MIB record parameters:
559  *       parm1    Prism2 RID value.
560  *       parm2    Bit value for PrivacyInvoked flag.
561  *       parm3    Not used.
562  *
563  * Arguments:
564  *       mib      MIB record.
565  *       isget    MIBGET/MIBSET flag.
566  *       wlandev  wlan device structure.
567  *       priv     "priv" structure.
568  *       hw       "hw" structure.
569  *       msg      Message structure.
570  *       data     Data buffer.
571  *
572  * Returns:
573  *       0   - Success.
574  *       ~0  - Error.
575  *
576  */
577 
578 static int prism2mib_privacyinvoked(struct mibrec *mib,
579 				    int isget,
580 				    struct wlandevice *wlandev,
581 				    struct hfa384x *hw,
582 				    struct p80211msg_dot11req_mibset *msg,
583 				    void *data)
584 {
585 	if (wlandev->hostwep & HOSTWEP_DECRYPT) {
586 		if (wlandev->hostwep & HOSTWEP_DECRYPT)
587 			mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
588 		if (wlandev->hostwep & HOSTWEP_ENCRYPT)
589 			mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
590 	}
591 
592 	return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
593 }
594 
595 /*
596  * prism2mib_excludeunencrypted
597  *
598  * Get/set the dot11ExcludeUnencrypted value.
599  *
600  * MIB record parameters:
601  *       parm1    Prism2 RID value.
602  *       parm2    Bit value for ExcludeUnencrypted flag.
603  *       parm3    Not used.
604  *
605  * Arguments:
606  *       mib      MIB record.
607  *       isget    MIBGET/MIBSET flag.
608  *       wlandev  wlan device structure.
609  *       priv     "priv" structure.
610  *       hw       "hw" structure.
611  *       msg      Message structure.
612  *       data     Data buffer.
613  *
614  * Returns:
615  *       0   - Success.
616  *       ~0  - Error.
617  *
618  */
619 
620 static int prism2mib_excludeunencrypted(struct mibrec *mib,
621 					int isget,
622 					struct wlandevice *wlandev,
623 					struct hfa384x *hw,
624 					struct p80211msg_dot11req_mibset *msg,
625 					void *data)
626 {
627 	return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
628 }
629 
630 /*
631  * prism2mib_fragmentationthreshold
632  *
633  * Get/set the fragmentation threshold.
634  *
635  * MIB record parameters:
636  *       parm1    Prism2 RID value.
637  *       parm2    Not used.
638  *       parm3    Not used.
639  *
640  * Arguments:
641  *       mib      MIB record.
642  *       isget    MIBGET/MIBSET flag.
643  *       wlandev  wlan device structure.
644  *       priv     "priv" structure.
645  *       hw       "hw" structure.
646  *       msg      Message structure.
647  *       data     Data buffer.
648  *
649  * Returns:
650  *       0   - Success.
651  *       ~0  - Error.
652  *
653  */
654 
655 static int prism2mib_fragmentationthreshold(struct mibrec *mib,
656 					    int isget,
657 					    struct wlandevice *wlandev,
658 					    struct hfa384x *hw,
659 					    struct p80211msg_dot11req_mibset *msg,
660 					    void *data)
661 {
662 	u32 *uint32 = data;
663 
664 	if (!isget)
665 		if ((*uint32) % 2) {
666 			netdev_warn(wlandev->netdev,
667 				    "Attempt to set odd number FragmentationThreshold\n");
668 			msg->resultcode.data =
669 			    P80211ENUM_resultcode_not_supported;
670 			return 0;
671 		}
672 
673 	return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
674 }
675 
676 /*
677  * prism2mib_priv
678  *
679  * Get/set values in the "priv" data structure.
680  *
681  * MIB record parameters:
682  *       parm1    Not used.
683  *       parm2    Not used.
684  *       parm3    Not used.
685  *
686  * Arguments:
687  *       mib      MIB record.
688  *       isget    MIBGET/MIBSET flag.
689  *       wlandev  wlan device structure.
690  *       priv     "priv" structure.
691  *       hw       "hw" structure.
692  *       msg      Message structure.
693  *       data     Data buffer.
694  *
695  * Returns:
696  *       0   - Success.
697  *       ~0  - Error.
698  *
699  */
700 
701 static int prism2mib_priv(struct mibrec *mib,
702 			  int isget,
703 			  struct wlandevice *wlandev,
704 			  struct hfa384x *hw,
705 			  struct p80211msg_dot11req_mibset *msg, void *data)
706 {
707 	struct p80211pstrd *pstr = data;
708 
709 	switch (mib->did) {
710 	case DIDmib_lnx_lnxConfigTable_lnxRSNAIE:{
711 			struct hfa384x_wpa_data wpa;
712 
713 			if (isget) {
714 				hfa384x_drvr_getconfig(hw,
715 						       HFA384x_RID_CNFWPADATA,
716 						       (u8 *)&wpa,
717 						       sizeof(wpa));
718 				pstr->len = le16_to_cpu(wpa.datalen);
719 				memcpy(pstr->data, wpa.data, pstr->len);
720 			} else {
721 				wpa.datalen = cpu_to_le16(pstr->len);
722 				memcpy(wpa.data, pstr->data, pstr->len);
723 
724 				hfa384x_drvr_setconfig(hw,
725 						       HFA384x_RID_CNFWPADATA,
726 						       (u8 *)&wpa,
727 						       sizeof(wpa));
728 			}
729 			break;
730 		}
731 	default:
732 		netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
733 	}
734 
735 	return 0;
736 }
737 
738 /*
739  * prism2mgmt_pstr2bytestr
740  *
741  * Convert the pstr data in the WLAN message structure into an hfa384x
742  * byte string format.
743  *
744  * Arguments:
745  *	bytestr		hfa384x byte string data type
746  *	pstr		wlan message data
747  *
748  * Returns:
749  *	Nothing
750  *
751  */
752 
753 void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
754 			     struct p80211pstrd *pstr)
755 {
756 	bytestr->len = cpu_to_le16((u16)(pstr->len));
757 	memcpy(bytestr->data, pstr->data, pstr->len);
758 }
759 
760 /*
761  * prism2mgmt_bytestr2pstr
762  *
763  * Convert the data in an hfa384x byte string format into a
764  * pstr in the WLAN message.
765  *
766  * Arguments:
767  *	bytestr		hfa384x byte string data type
768  *	msg		wlan message
769  *
770  * Returns:
771  *	Nothing
772  *
773  */
774 
775 void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
776 			     struct p80211pstrd *pstr)
777 {
778 	pstr->len = (u8)(le16_to_cpu(bytestr->len));
779 	memcpy(pstr->data, bytestr->data, pstr->len);
780 }
781 
782 /*
783  * prism2mgmt_bytearea2pstr
784  *
785  * Convert the data in an hfa384x byte area format into a pstr
786  * in the WLAN message.
787  *
788  * Arguments:
789  *	bytearea	hfa384x byte area data type
790  *	msg		wlan message
791  *
792  * Returns:
793  *	Nothing
794  *
795  */
796 
797 void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
798 {
799 	pstr->len = (u8)len;
800 	memcpy(pstr->data, bytearea, len);
801 }
802