1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
2 /* src/prism2/driver/prism2mib.c
4 * Management request for mibset/mibget
6 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
7 * --------------------------------------------------------------------
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/
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.
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.
32 * --------------------------------------------------------------------
34 * Inquiries regarding the linux-wlan Open Source project can be
37 * AbsoluteValue Systems Inc.
39 * http://www.linux-wlan.com
41 * --------------------------------------------------------------------
43 * Portions of the development of this software were funded by
44 * Intersil Corporation as part of PRISM(R) chipset product development.
46 * --------------------------------------------------------------------
48 * The functions in this file handle the mibset/mibget management
51 * --------------------------------------------------------------------
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>
61 #include <linux/delay.h>
62 #include <asm/byteorder.h>
63 #include <linux/usb.h>
64 #include <linux/bitops.h>
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"
75 #include "prism2mgmt.h"
77 #define MIB_TMP_MAXLEN 200 /* Max length of RID record (in bytes). */
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. */
89 int (*func)(struct mibrec *mib,
91 struct wlandevice *wlandev,
93 struct p80211msg_dot11req_mibset *msg, void *data);
96 static int prism2mib_bytearea2pstr(struct mibrec *mib,
98 struct wlandevice *wlandev,
100 struct p80211msg_dot11req_mibset *msg,
103 static int prism2mib_uint32(struct mibrec *mib,
105 struct wlandevice *wlandev,
107 struct p80211msg_dot11req_mibset *msg, void *data);
109 static int prism2mib_flag(struct mibrec *mib,
111 struct wlandevice *wlandev,
113 struct p80211msg_dot11req_mibset *msg, void *data);
115 static int prism2mib_wepdefaultkey(struct mibrec *mib,
117 struct wlandevice *wlandev,
119 struct p80211msg_dot11req_mibset *msg,
122 static int prism2mib_privacyinvoked(struct mibrec *mib,
124 struct wlandevice *wlandev,
126 struct p80211msg_dot11req_mibset *msg,
129 static int prism2mib_excludeunencrypted(struct mibrec *mib,
131 struct wlandevice *wlandev,
133 struct p80211msg_dot11req_mibset *msg,
137 prism2mib_fragmentationthreshold(struct mibrec *mib,
139 struct wlandevice *wlandev,
141 struct p80211msg_dot11req_mibset *msg,
144 static int prism2mib_priv(struct mibrec *mib,
146 struct wlandevice *wlandev,
148 struct p80211msg_dot11req_mibset *msg, void *data);
150 static struct mibrec mibtab[] = {
152 {didmib_dot11smt_wepdefaultkeystable_key(1),
154 HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
155 prism2mib_wepdefaultkey},
156 {didmib_dot11smt_wepdefaultkeystable_key(2),
158 HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
159 prism2mib_wepdefaultkey},
160 {didmib_dot11smt_wepdefaultkeystable_key(3),
162 HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
163 prism2mib_wepdefaultkey},
164 {didmib_dot11smt_wepdefaultkeystable_key(4),
166 HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
167 prism2mib_wepdefaultkey},
168 {DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
169 F_STA | F_READ | F_WRITE,
170 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
171 prism2mib_privacyinvoked},
172 {DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
173 F_STA | F_READ | F_WRITE,
174 HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
176 {DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
177 F_STA | F_READ | F_WRITE,
178 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
179 prism2mib_excludeunencrypted},
183 {DIDMIB_DOT11MAC_OPERATIONTABLE_MACADDRESS,
184 F_STA | F_READ | F_WRITE,
185 HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
186 prism2mib_bytearea2pstr},
187 {DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD,
188 F_STA | F_READ | F_WRITE,
189 HFA384x_RID_RTSTHRESH, 0, 0,
191 {DIDMIB_DOT11MAC_OPERATIONTABLE_SHORTRETRYLIMIT,
193 HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
195 {DIDMIB_DOT11MAC_OPERATIONTABLE_LONGRETRYLIMIT,
197 HFA384x_RID_LONGRETRYLIMIT, 0, 0,
199 {DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD,
200 F_STA | F_READ | F_WRITE,
201 HFA384x_RID_FRAGTHRESH, 0, 0,
202 prism2mib_fragmentationthreshold},
203 {DIDMIB_DOT11MAC_OPERATIONTABLE_MAXTRANSMITMSDULIFETIME,
205 HFA384x_RID_MAXTXLIFETIME, 0, 0,
210 {DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
212 HFA384x_RID_CURRENTCHANNEL, 0, 0,
214 {DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL,
215 F_STA | F_READ | F_WRITE,
216 HFA384x_RID_TXPOWERMAX, 0, 0,
221 {DIDMIB_P2_STATIC_CNFPORTTYPE,
222 F_STA | F_READ | F_WRITE,
223 HFA384x_RID_CNFPORTTYPE, 0, 0,
228 {DIDMIB_P2_MAC_CURRENTTXRATE,
230 HFA384x_RID_CURRENTTXRATE, 0, 0,
233 /* And finally, lnx mibs */
234 {DIDMIB_LNX_CONFIGTABLE_RSNAIE,
235 F_STA | F_READ | F_WRITE,
236 HFA384x_RID_CNFWPADATA, 0, 0,
238 {0, 0, 0, 0, 0, NULL}
242 * prism2mgmt_mibset_mibget
244 * Set the value of a mib item.
247 * wlandev wlan device structure
248 * msgp ptr to msg buffer
252 * <0 success, but we're waiting for something to finish.
253 * >0 an error occurred while handling the message.
257 * process thread (usually)
261 int prism2mgmt_mibset_mibget(struct wlandevice *wlandev, void *msgp)
263 struct hfa384x *hw = wlandev->priv;
269 struct p80211msg_dot11req_mibset *msg = msgp;
270 struct p80211itemd *mibitem;
272 msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
273 msg->resultcode.data = P80211ENUM_resultcode_success;
276 ** Determine if this is an Access Point or a station.
282 ** Find the MIB in the MIB table. Note that a MIB may be in the
283 ** table twice...once for an AP and once for a station. Make sure
284 ** to get the correct one. Note that DID=0 marks the end of the
288 mibitem = (struct p80211itemd *)msg->mibattribute.data;
290 for (mib = mibtab; mib->did != 0; mib++)
291 if (mib->did == mibitem->did && (mib->flag & which))
295 msg->resultcode.data = P80211ENUM_resultcode_not_supported;
300 ** Determine if this is a "mibget" or a "mibset". If this is a
301 ** "mibget", then make sure that the MIB may be read. Otherwise,
302 ** this is a "mibset" so make make sure that the MIB may be written.
305 isget = (msg->msgcode == DIDMSG_DOT11REQ_MIBGET);
308 if (!(mib->flag & F_READ)) {
309 msg->resultcode.data =
310 P80211ENUM_resultcode_cant_get_writeonly_mib;
314 if (!(mib->flag & F_WRITE)) {
315 msg->resultcode.data =
316 P80211ENUM_resultcode_cant_set_readonly_mib;
322 ** Execute the MIB function. If things worked okay, then make
323 ** sure that the MIB function also worked okay. If so, and this
324 ** is a "mibget", then the status value must be set for both the
325 ** "mibattribute" parameter and the mib item within the data
326 ** portion of the "mibattribute".
329 result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
331 if (msg->resultcode.data == P80211ENUM_resultcode_success) {
333 pr_debug("get/set failure, result=%d\n", result);
334 msg->resultcode.data =
335 P80211ENUM_resultcode_implementation_failure;
338 msg->mibattribute.status =
339 P80211ENUM_msgitem_status_data_ok;
341 P80211ENUM_msgitem_status_data_ok;
351 * prism2mib_bytearea2pstr
353 * Get/set pstr data to/from a byte area.
355 * MIB record parameters:
356 * parm1 Prism2 RID value.
357 * parm2 Number of bytes of RID data.
362 * isget MIBGET/MIBSET flag.
363 * wlandev wlan device structure.
364 * priv "priv" structure.
366 * msg Message structure.
375 static int prism2mib_bytearea2pstr(struct mibrec *mib,
377 struct wlandevice *wlandev,
379 struct p80211msg_dot11req_mibset *msg,
383 struct p80211pstrd *pstr = data;
384 u8 bytebuf[MIB_TMP_MAXLEN];
388 hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
389 prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
391 memset(bytebuf, 0, mib->parm2);
392 memcpy(bytebuf, pstr->data, pstr->len);
394 hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
403 * Get/set uint32 data.
405 * MIB record parameters:
406 * parm1 Prism2 RID value.
412 * isget MIBGET/MIBSET flag.
413 * wlandev wlan device structure.
414 * priv "priv" structure.
416 * msg Message structure.
425 static int prism2mib_uint32(struct mibrec *mib,
427 struct wlandevice *wlandev,
429 struct p80211msg_dot11req_mibset *msg, void *data)
433 u8 bytebuf[MIB_TMP_MAXLEN];
434 u16 *wordbuf = (u16 *)bytebuf;
437 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
441 result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
452 * MIB record parameters:
453 * parm1 Prism2 RID value.
454 * parm2 Bit to get/set.
459 * isget MIBGET/MIBSET flag.
460 * wlandev wlan device structure.
461 * priv "priv" structure.
463 * msg Message structure.
472 static int prism2mib_flag(struct mibrec *mib,
474 struct wlandevice *wlandev,
476 struct p80211msg_dot11req_mibset *msg, void *data)
480 u8 bytebuf[MIB_TMP_MAXLEN];
481 u16 *wordbuf = (u16 *)bytebuf;
484 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
488 *uint32 = (flags & mib->parm2) ?
489 P80211ENUM_truth_true : P80211ENUM_truth_false;
491 if ((*uint32) == P80211ENUM_truth_true)
494 flags &= ~mib->parm2;
497 hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
505 * prism2mib_wepdefaultkey
507 * Get/set WEP default keys.
509 * MIB record parameters:
510 * parm1 Prism2 RID value.
511 * parm2 Number of bytes of RID data.
516 * isget MIBGET/MIBSET flag.
517 * wlandev wlan device structure.
518 * priv "priv" structure.
520 * msg Message structure.
529 static int prism2mib_wepdefaultkey(struct mibrec *mib,
531 struct wlandevice *wlandev,
533 struct p80211msg_dot11req_mibset *msg,
537 struct p80211pstrd *pstr = data;
538 u8 bytebuf[MIB_TMP_MAXLEN];
542 result = 0; /* Should never happen. */
544 len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
545 HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
546 memset(bytebuf, 0, len);
547 memcpy(bytebuf, pstr->data, pstr->len);
548 result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
555 * prism2mib_privacyinvoked
557 * Get/set the dot11PrivacyInvoked value.
559 * MIB record parameters:
560 * parm1 Prism2 RID value.
561 * parm2 Bit value for PrivacyInvoked flag.
566 * isget MIBGET/MIBSET flag.
567 * wlandev wlan device structure.
568 * priv "priv" structure.
570 * msg Message structure.
579 static int prism2mib_privacyinvoked(struct mibrec *mib,
581 struct wlandevice *wlandev,
583 struct p80211msg_dot11req_mibset *msg,
586 if (wlandev->hostwep & HOSTWEP_DECRYPT) {
587 if (wlandev->hostwep & HOSTWEP_DECRYPT)
588 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
589 if (wlandev->hostwep & HOSTWEP_ENCRYPT)
590 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
593 return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
597 * prism2mib_excludeunencrypted
599 * Get/set the dot11ExcludeUnencrypted value.
601 * MIB record parameters:
602 * parm1 Prism2 RID value.
603 * parm2 Bit value for ExcludeUnencrypted flag.
608 * isget MIBGET/MIBSET flag.
609 * wlandev wlan device structure.
610 * priv "priv" structure.
612 * msg Message structure.
621 static int prism2mib_excludeunencrypted(struct mibrec *mib,
623 struct wlandevice *wlandev,
625 struct p80211msg_dot11req_mibset *msg,
628 return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
632 * prism2mib_fragmentationthreshold
634 * Get/set the fragmentation threshold.
636 * MIB record parameters:
637 * parm1 Prism2 RID value.
643 * isget MIBGET/MIBSET flag.
644 * wlandev wlan device structure.
645 * priv "priv" structure.
647 * msg Message structure.
657 prism2mib_fragmentationthreshold(struct mibrec *mib,
659 struct wlandevice *wlandev,
661 struct p80211msg_dot11req_mibset *msg,
668 netdev_warn(wlandev->netdev,
669 "Attempt to set odd number FragmentationThreshold\n");
670 msg->resultcode.data =
671 P80211ENUM_resultcode_not_supported;
675 return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
681 * Get/set values in the "priv" data structure.
683 * MIB record parameters:
690 * isget MIBGET/MIBSET flag.
691 * wlandev wlan device structure.
692 * priv "priv" structure.
694 * msg Message structure.
703 static int prism2mib_priv(struct mibrec *mib,
705 struct wlandevice *wlandev,
707 struct p80211msg_dot11req_mibset *msg, void *data)
709 struct p80211pstrd *pstr = data;
712 case DIDMIB_LNX_CONFIGTABLE_RSNAIE: {
713 struct hfa384x_wpa_data wpa;
716 hfa384x_drvr_getconfig(hw,
717 HFA384x_RID_CNFWPADATA,
720 pstr->len = le16_to_cpu(wpa.datalen);
721 memcpy(pstr->data, wpa.data, pstr->len);
723 wpa.datalen = cpu_to_le16(pstr->len);
724 memcpy(wpa.data, pstr->data, pstr->len);
726 hfa384x_drvr_setconfig(hw,
727 HFA384x_RID_CNFWPADATA,
734 netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
741 * prism2mgmt_pstr2bytestr
743 * Convert the pstr data in the WLAN message structure into an hfa384x
744 * byte string format.
747 * bytestr hfa384x byte string data type
748 * pstr wlan message data
755 void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
756 struct p80211pstrd *pstr)
758 bytestr->len = cpu_to_le16((u16)(pstr->len));
759 memcpy(bytestr->data, pstr->data, pstr->len);
763 * prism2mgmt_bytestr2pstr
765 * Convert the data in an hfa384x byte string format into a
766 * pstr in the WLAN message.
769 * bytestr hfa384x byte string data type
777 void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
778 struct p80211pstrd *pstr)
780 pstr->len = (u8)(le16_to_cpu(bytestr->len));
781 memcpy(pstr->data, bytestr->data, pstr->len);
785 * prism2mgmt_bytearea2pstr
787 * Convert the data in an hfa384x byte area format into a pstr
788 * in the WLAN message.
791 * bytearea hfa384x byte area data type
799 void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
802 memcpy(pstr->data, bytearea, len);