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,
130 prism2mib_fragmentationthreshold(struct mibrec *mib,
132 struct wlandevice *wlandev,
134 struct p80211msg_dot11req_mibset *msg,
137 static int prism2mib_priv(struct mibrec *mib,
139 struct wlandevice *wlandev,
141 struct p80211msg_dot11req_mibset *msg, void *data);
143 static struct mibrec mibtab[] = {
145 {didmib_dot11smt_wepdefaultkeystable_key(1),
147 HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
148 prism2mib_wepdefaultkey},
149 {didmib_dot11smt_wepdefaultkeystable_key(2),
151 HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
152 prism2mib_wepdefaultkey},
153 {didmib_dot11smt_wepdefaultkeystable_key(3),
155 HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
156 prism2mib_wepdefaultkey},
157 {didmib_dot11smt_wepdefaultkeystable_key(4),
159 HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
160 prism2mib_wepdefaultkey},
161 {DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
162 F_STA | F_READ | F_WRITE,
163 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
164 prism2mib_privacyinvoked},
165 {DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
166 F_STA | F_READ | F_WRITE,
167 HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
169 {DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
170 F_STA | F_READ | F_WRITE,
171 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
176 {DIDMIB_DOT11MAC_OPERATIONTABLE_MACADDRESS,
177 F_STA | F_READ | F_WRITE,
178 HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
179 prism2mib_bytearea2pstr},
180 {DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD,
181 F_STA | F_READ | F_WRITE,
182 HFA384x_RID_RTSTHRESH, 0, 0,
184 {DIDMIB_DOT11MAC_OPERATIONTABLE_SHORTRETRYLIMIT,
186 HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
188 {DIDMIB_DOT11MAC_OPERATIONTABLE_LONGRETRYLIMIT,
190 HFA384x_RID_LONGRETRYLIMIT, 0, 0,
192 {DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD,
193 F_STA | F_READ | F_WRITE,
194 HFA384x_RID_FRAGTHRESH, 0, 0,
195 prism2mib_fragmentationthreshold},
196 {DIDMIB_DOT11MAC_OPERATIONTABLE_MAXTRANSMITMSDULIFETIME,
198 HFA384x_RID_MAXTXLIFETIME, 0, 0,
203 {DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
205 HFA384x_RID_CURRENTCHANNEL, 0, 0,
207 {DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL,
208 F_STA | F_READ | F_WRITE,
209 HFA384x_RID_TXPOWERMAX, 0, 0,
214 {DIDMIB_P2_STATIC_CNFPORTTYPE,
215 F_STA | F_READ | F_WRITE,
216 HFA384x_RID_CNFPORTTYPE, 0, 0,
221 {DIDMIB_P2_MAC_CURRENTTXRATE,
223 HFA384x_RID_CURRENTTXRATE, 0, 0,
226 /* And finally, lnx mibs */
227 {DIDMIB_LNX_CONFIGTABLE_RSNAIE,
228 F_STA | F_READ | F_WRITE,
229 HFA384x_RID_CNFWPADATA, 0, 0,
231 {0, 0, 0, 0, 0, NULL}
235 * prism2mgmt_mibset_mibget
237 * Set the value of a mib item.
240 * wlandev wlan device structure
241 * msgp ptr to msg buffer
245 * <0 success, but we're waiting for something to finish.
246 * >0 an error occurred while handling the message.
250 * process thread (usually)
254 int prism2mgmt_mibset_mibget(struct wlandevice *wlandev, void *msgp)
256 struct hfa384x *hw = wlandev->priv;
262 struct p80211msg_dot11req_mibset *msg = msgp;
263 struct p80211itemd *mibitem;
265 msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
266 msg->resultcode.data = P80211ENUM_resultcode_success;
269 ** Determine if this is an Access Point or a station.
275 ** Find the MIB in the MIB table. Note that a MIB may be in the
276 ** table twice...once for an AP and once for a station. Make sure
277 ** to get the correct one. Note that DID=0 marks the end of the
281 mibitem = (struct p80211itemd *)msg->mibattribute.data;
283 for (mib = mibtab; mib->did != 0; mib++)
284 if (mib->did == mibitem->did && (mib->flag & which))
288 msg->resultcode.data = P80211ENUM_resultcode_not_supported;
293 ** Determine if this is a "mibget" or a "mibset". If this is a
294 ** "mibget", then make sure that the MIB may be read. Otherwise,
295 ** this is a "mibset" so make sure that the MIB may be written.
298 isget = (msg->msgcode == DIDMSG_DOT11REQ_MIBGET);
301 if (!(mib->flag & F_READ)) {
302 msg->resultcode.data =
303 P80211ENUM_resultcode_cant_get_writeonly_mib;
307 if (!(mib->flag & F_WRITE)) {
308 msg->resultcode.data =
309 P80211ENUM_resultcode_cant_set_readonly_mib;
315 ** Execute the MIB function. If things worked okay, then make
316 ** sure that the MIB function also worked okay. If so, and this
317 ** is a "mibget", then the status value must be set for both the
318 ** "mibattribute" parameter and the mib item within the data
319 ** portion of the "mibattribute".
322 result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
324 if (msg->resultcode.data == P80211ENUM_resultcode_success) {
326 pr_debug("get/set failure, result=%d\n", result);
327 msg->resultcode.data =
328 P80211ENUM_resultcode_implementation_failure;
331 msg->mibattribute.status =
332 P80211ENUM_msgitem_status_data_ok;
334 P80211ENUM_msgitem_status_data_ok;
344 * prism2mib_bytearea2pstr
346 * Get/set pstr data to/from a byte area.
348 * MIB record parameters:
349 * parm1 Prism2 RID value.
350 * parm2 Number of bytes of RID data.
355 * isget MIBGET/MIBSET flag.
356 * wlandev wlan device structure.
357 * priv "priv" structure.
359 * msg Message structure.
368 static int prism2mib_bytearea2pstr(struct mibrec *mib,
370 struct wlandevice *wlandev,
372 struct p80211msg_dot11req_mibset *msg,
376 struct p80211pstrd *pstr = data;
377 u8 bytebuf[MIB_TMP_MAXLEN];
381 hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
382 prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
384 memset(bytebuf, 0, mib->parm2);
385 memcpy(bytebuf, pstr->data, pstr->len);
387 hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
396 * Get/set uint32 data.
398 * MIB record parameters:
399 * parm1 Prism2 RID value.
405 * isget MIBGET/MIBSET flag.
406 * wlandev wlan device structure.
407 * priv "priv" structure.
409 * msg Message structure.
418 static int prism2mib_uint32(struct mibrec *mib,
420 struct wlandevice *wlandev,
422 struct p80211msg_dot11req_mibset *msg, void *data)
426 u8 bytebuf[MIB_TMP_MAXLEN];
427 u16 *wordbuf = (u16 *)bytebuf;
430 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
434 result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
445 * MIB record parameters:
446 * parm1 Prism2 RID value.
447 * parm2 Bit to get/set.
452 * isget MIBGET/MIBSET flag.
453 * wlandev wlan device structure.
454 * priv "priv" structure.
456 * msg Message structure.
465 static int prism2mib_flag(struct mibrec *mib,
467 struct wlandevice *wlandev,
469 struct p80211msg_dot11req_mibset *msg, void *data)
473 u8 bytebuf[MIB_TMP_MAXLEN];
474 u16 *wordbuf = (u16 *)bytebuf;
477 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
481 *uint32 = (flags & mib->parm2) ?
482 P80211ENUM_truth_true : P80211ENUM_truth_false;
484 if ((*uint32) == P80211ENUM_truth_true)
487 flags &= ~mib->parm2;
490 hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
498 * prism2mib_wepdefaultkey
500 * Get/set WEP default keys.
502 * MIB record parameters:
503 * parm1 Prism2 RID value.
504 * parm2 Number of bytes of RID data.
509 * isget MIBGET/MIBSET flag.
510 * wlandev wlan device structure.
511 * priv "priv" structure.
513 * msg Message structure.
522 static int prism2mib_wepdefaultkey(struct mibrec *mib,
524 struct wlandevice *wlandev,
526 struct p80211msg_dot11req_mibset *msg,
530 struct p80211pstrd *pstr = data;
531 u8 bytebuf[MIB_TMP_MAXLEN];
535 result = 0; /* Should never happen. */
537 len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
538 HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
539 memset(bytebuf, 0, len);
540 memcpy(bytebuf, pstr->data, pstr->len);
541 result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
548 * prism2mib_privacyinvoked
550 * Get/set the dot11PrivacyInvoked value.
552 * MIB record parameters:
553 * parm1 Prism2 RID value.
554 * parm2 Bit value for PrivacyInvoked flag.
559 * isget MIBGET/MIBSET flag.
560 * wlandev wlan device structure.
561 * priv "priv" structure.
563 * msg Message structure.
572 static int prism2mib_privacyinvoked(struct mibrec *mib,
574 struct wlandevice *wlandev,
576 struct p80211msg_dot11req_mibset *msg,
579 if (wlandev->hostwep & HOSTWEP_DECRYPT) {
580 if (wlandev->hostwep & HOSTWEP_DECRYPT)
581 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
582 if (wlandev->hostwep & HOSTWEP_ENCRYPT)
583 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
586 return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
590 * prism2mib_fragmentationthreshold
592 * Get/set the fragmentation threshold.
594 * MIB record parameters:
595 * parm1 Prism2 RID value.
601 * isget MIBGET/MIBSET flag.
602 * wlandev wlan device structure.
603 * priv "priv" structure.
605 * msg Message structure.
615 prism2mib_fragmentationthreshold(struct mibrec *mib,
617 struct wlandevice *wlandev,
619 struct p80211msg_dot11req_mibset *msg,
626 netdev_warn(wlandev->netdev,
627 "Attempt to set odd number FragmentationThreshold\n");
628 msg->resultcode.data =
629 P80211ENUM_resultcode_not_supported;
633 return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
639 * Get/set values in the "priv" data structure.
641 * MIB record parameters:
648 * isget MIBGET/MIBSET flag.
649 * wlandev wlan device structure.
650 * priv "priv" structure.
652 * msg Message structure.
661 static int prism2mib_priv(struct mibrec *mib,
663 struct wlandevice *wlandev,
665 struct p80211msg_dot11req_mibset *msg, void *data)
667 struct p80211pstrd *pstr = data;
670 case DIDMIB_LNX_CONFIGTABLE_RSNAIE: {
671 struct hfa384x_wpa_data wpa;
674 hfa384x_drvr_getconfig(hw,
675 HFA384x_RID_CNFWPADATA,
678 pstr->len = le16_to_cpu(wpa.datalen);
679 memcpy(pstr->data, wpa.data, pstr->len);
681 wpa.datalen = cpu_to_le16(pstr->len);
682 memcpy(wpa.data, pstr->data, pstr->len);
684 hfa384x_drvr_setconfig(hw,
685 HFA384x_RID_CNFWPADATA,
692 netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
699 * prism2mgmt_pstr2bytestr
701 * Convert the pstr data in the WLAN message structure into an hfa384x
702 * byte string format.
705 * bytestr hfa384x byte string data type
706 * pstr wlan message data
713 void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
714 struct p80211pstrd *pstr)
716 bytestr->len = cpu_to_le16((u16)(pstr->len));
717 memcpy(bytestr->data, pstr->data, pstr->len);
721 * prism2mgmt_bytestr2pstr
723 * Convert the data in an hfa384x byte string format into a
724 * pstr in the WLAN message.
727 * bytestr hfa384x byte string data type
735 void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
736 struct p80211pstrd *pstr)
738 pstr->len = (u8)(le16_to_cpu(bytestr->len));
739 memcpy(pstr->data, bytestr->data, pstr->len);
743 * prism2mgmt_bytearea2pstr
745 * Convert the data in an hfa384x byte area format into a pstr
746 * in the WLAN message.
749 * bytearea hfa384x byte area data type
757 void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
760 memcpy(pstr->data, bytearea, len);