1 /* src/prism2/driver/prism2mib.c
3 * Management request for mibset/mibget
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
10 * The contents of this file are subject to the Mozilla Public
11 * License Version 1.1 (the "License"); you may not use this file
12 * except in compliance with the License. You may obtain a copy of
13 * the License at http://www.mozilla.org/MPL/
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing
18 * rights and limitations under the License.
20 * Alternatively, the contents of this file may be used under the
21 * terms of the GNU Public License version 2 (the "GPL"), in which
22 * case the provisions of the GPL are applicable instead of the
23 * above. If you wish to allow the use of your version of this file
24 * only under the terms of the GPL and not to allow others to use
25 * your version of this file under the MPL, indicate your decision
26 * by deleting the provisions above and replace them with the notice
27 * and other provisions required by the GPL. If you do not delete
28 * the provisions above, a recipient may use your version of this
29 * file under either the MPL or the GPL.
31 * --------------------------------------------------------------------
33 * Inquiries regarding the linux-wlan Open Source project can be
36 * AbsoluteValue Systems Inc.
38 * http://www.linux-wlan.com
40 * --------------------------------------------------------------------
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
45 * --------------------------------------------------------------------
47 * The functions in this file handle the mibset/mibget management
50 * --------------------------------------------------------------------
53 #include <linux/module.h>
54 #include <linux/kernel.h>
55 #include <linux/sched.h>
56 #include <linux/types.h>
57 #include <linux/wireless.h>
58 #include <linux/netdevice.h>
60 #include <linux/delay.h>
61 #include <asm/byteorder.h>
62 #include <linux/usb.h>
63 #include <linux/bitops.h>
65 #include "p80211types.h"
66 #include "p80211hdr.h"
67 #include "p80211mgmt.h"
68 #include "p80211conv.h"
69 #include "p80211msg.h"
70 #include "p80211netdev.h"
71 #include "p80211metadef.h"
72 #include "p80211metastruct.h"
74 #include "prism2mgmt.h"
76 #define MIB_TMP_MAXLEN 200 /* Max length of RID record (in bytes). */
78 #define F_STA 0x1 /* MIB is supported on stations. */
79 #define F_READ 0x2 /* MIB may be read. */
80 #define F_WRITE 0x4 /* MIB may be written. */
88 int (*func)(struct mibrec *mib,
90 struct wlandevice *wlandev,
92 struct p80211msg_dot11req_mibset *msg, void *data);
95 static int prism2mib_bytearea2pstr(struct mibrec *mib,
97 struct wlandevice *wlandev,
99 struct p80211msg_dot11req_mibset *msg,
102 static int prism2mib_uint32(struct mibrec *mib,
104 struct wlandevice *wlandev,
106 struct p80211msg_dot11req_mibset *msg, void *data);
108 static int prism2mib_flag(struct mibrec *mib,
110 struct wlandevice *wlandev,
112 struct p80211msg_dot11req_mibset *msg, void *data);
114 static int prism2mib_wepdefaultkey(struct mibrec *mib,
116 struct wlandevice *wlandev,
118 struct p80211msg_dot11req_mibset *msg,
121 static int prism2mib_privacyinvoked(struct mibrec *mib,
123 struct wlandevice *wlandev,
125 struct p80211msg_dot11req_mibset *msg,
128 static int prism2mib_excludeunencrypted(struct mibrec *mib,
130 struct wlandevice *wlandev,
132 struct p80211msg_dot11req_mibset *msg,
135 static int prism2mib_fragmentationthreshold(struct mibrec *mib,
137 struct wlandevice *wlandev,
139 struct p80211msg_dot11req_mibset *msg,
142 static int prism2mib_priv(struct mibrec *mib,
144 struct wlandevice *wlandev,
146 struct p80211msg_dot11req_mibset *msg, void *data);
148 static struct mibrec mibtab[] = {
150 {DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(1),
152 HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
153 prism2mib_wepdefaultkey},
154 {DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(2),
156 HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
157 prism2mib_wepdefaultkey},
158 {DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(3),
160 HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
161 prism2mib_wepdefaultkey},
162 {DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(4),
164 HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
165 prism2mib_wepdefaultkey},
166 {DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
167 F_STA | F_READ | F_WRITE,
168 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
169 prism2mib_privacyinvoked},
170 {DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
171 F_STA | F_READ | F_WRITE,
172 HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
174 {DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
175 F_STA | F_READ | F_WRITE,
176 HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
177 prism2mib_excludeunencrypted},
181 {DIDmib_dot11mac_dot11OperationTable_dot11MACAddress,
182 F_STA | F_READ | F_WRITE,
183 HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
184 prism2mib_bytearea2pstr},
185 {DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
186 F_STA | F_READ | F_WRITE,
187 HFA384x_RID_RTSTHRESH, 0, 0,
189 {DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit,
191 HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
193 {DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit,
195 HFA384x_RID_LONGRETRYLIMIT, 0, 0,
197 {DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
198 F_STA | F_READ | F_WRITE,
199 HFA384x_RID_FRAGTHRESH, 0, 0,
200 prism2mib_fragmentationthreshold},
201 {DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime,
203 HFA384x_RID_MAXTXLIFETIME, 0, 0,
208 {DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
210 HFA384x_RID_CURRENTCHANNEL, 0, 0,
212 {DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
213 F_STA | F_READ | F_WRITE,
214 HFA384x_RID_TXPOWERMAX, 0, 0,
219 {DIDmib_p2_p2Static_p2CnfPortType,
220 F_STA | F_READ | F_WRITE,
221 HFA384x_RID_CNFPORTTYPE, 0, 0,
226 {DIDmib_p2_p2MAC_p2CurrentTxRate,
228 HFA384x_RID_CURRENTTXRATE, 0, 0,
231 /* And finally, lnx mibs */
232 {DIDmib_lnx_lnxConfigTable_lnxRSNAIE,
233 F_STA | F_READ | F_WRITE,
234 HFA384x_RID_CNFWPADATA, 0, 0,
236 {0, 0, 0, 0, 0, NULL}
240 * prism2mgmt_mibset_mibget
242 * Set the value of a mib item.
245 * wlandev wlan device structure
246 * msgp ptr to msg buffer
250 * <0 success, but we're waiting for something to finish.
251 * >0 an error occurred while handling the message.
255 * process thread (usually)
259 int prism2mgmt_mibset_mibget(struct wlandevice *wlandev, void *msgp)
261 struct hfa384x *hw = wlandev->priv;
267 struct p80211msg_dot11req_mibset *msg = msgp;
268 struct p80211itemd *mibitem;
270 msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
271 msg->resultcode.data = P80211ENUM_resultcode_success;
274 ** Determine if this is an Access Point or a station.
280 ** Find the MIB in the MIB table. Note that a MIB may be in the
281 ** table twice...once for an AP and once for a station. Make sure
282 ** to get the correct one. Note that DID=0 marks the end of the
286 mibitem = (struct p80211itemd *)msg->mibattribute.data;
288 for (mib = mibtab; mib->did != 0; mib++)
289 if (mib->did == mibitem->did && (mib->flag & which))
293 msg->resultcode.data = P80211ENUM_resultcode_not_supported;
298 ** Determine if this is a "mibget" or a "mibset". If this is a
299 ** "mibget", then make sure that the MIB may be read. Otherwise,
300 ** this is a "mibset" so make make sure that the MIB may be written.
303 isget = (msg->msgcode == DIDmsg_dot11req_mibget);
306 if (!(mib->flag & F_READ)) {
307 msg->resultcode.data =
308 P80211ENUM_resultcode_cant_get_writeonly_mib;
312 if (!(mib->flag & F_WRITE)) {
313 msg->resultcode.data =
314 P80211ENUM_resultcode_cant_set_readonly_mib;
320 ** Execute the MIB function. If things worked okay, then make
321 ** sure that the MIB function also worked okay. If so, and this
322 ** is a "mibget", then the status value must be set for both the
323 ** "mibattribute" parameter and the mib item within the data
324 ** portion of the "mibattribute".
327 result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
329 if (msg->resultcode.data == P80211ENUM_resultcode_success) {
331 pr_debug("get/set failure, result=%d\n", result);
332 msg->resultcode.data =
333 P80211ENUM_resultcode_implementation_failure;
336 msg->mibattribute.status =
337 P80211ENUM_msgitem_status_data_ok;
339 P80211ENUM_msgitem_status_data_ok;
349 * prism2mib_bytearea2pstr
351 * Get/set pstr data to/from a byte area.
353 * MIB record parameters:
354 * parm1 Prism2 RID value.
355 * parm2 Number of bytes of RID data.
360 * isget MIBGET/MIBSET flag.
361 * wlandev wlan device structure.
362 * priv "priv" structure.
364 * msg Message structure.
373 static int prism2mib_bytearea2pstr(struct mibrec *mib,
375 struct wlandevice *wlandev,
377 struct p80211msg_dot11req_mibset *msg,
381 struct p80211pstrd *pstr = data;
382 u8 bytebuf[MIB_TMP_MAXLEN];
386 hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
387 prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
389 memset(bytebuf, 0, mib->parm2);
390 memcpy(bytebuf, pstr->data, pstr->len);
392 hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
401 * Get/set uint32 data.
403 * MIB record parameters:
404 * parm1 Prism2 RID value.
410 * isget MIBGET/MIBSET flag.
411 * wlandev wlan device structure.
412 * priv "priv" structure.
414 * msg Message structure.
423 static int prism2mib_uint32(struct mibrec *mib,
425 struct wlandevice *wlandev,
427 struct p80211msg_dot11req_mibset *msg, void *data)
431 u8 bytebuf[MIB_TMP_MAXLEN];
432 u16 *wordbuf = (u16 *)bytebuf;
435 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
439 result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
450 * MIB record parameters:
451 * parm1 Prism2 RID value.
452 * parm2 Bit to get/set.
457 * isget MIBGET/MIBSET flag.
458 * wlandev wlan device structure.
459 * priv "priv" structure.
461 * msg Message structure.
470 static int prism2mib_flag(struct mibrec *mib,
472 struct wlandevice *wlandev,
474 struct p80211msg_dot11req_mibset *msg, void *data)
478 u8 bytebuf[MIB_TMP_MAXLEN];
479 u16 *wordbuf = (u16 *)bytebuf;
482 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
486 *uint32 = (flags & mib->parm2) ?
487 P80211ENUM_truth_true : P80211ENUM_truth_false;
489 if ((*uint32) == P80211ENUM_truth_true)
492 flags &= ~mib->parm2;
495 hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
503 * prism2mib_wepdefaultkey
505 * Get/set WEP default keys.
507 * MIB record parameters:
508 * parm1 Prism2 RID value.
509 * parm2 Number of bytes of RID data.
514 * isget MIBGET/MIBSET flag.
515 * wlandev wlan device structure.
516 * priv "priv" structure.
518 * msg Message structure.
527 static int prism2mib_wepdefaultkey(struct mibrec *mib,
529 struct wlandevice *wlandev,
531 struct p80211msg_dot11req_mibset *msg,
535 struct p80211pstrd *pstr = data;
536 u8 bytebuf[MIB_TMP_MAXLEN];
540 result = 0; /* Should never happen. */
542 len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
543 HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
544 memset(bytebuf, 0, len);
545 memcpy(bytebuf, pstr->data, pstr->len);
546 result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
553 * prism2mib_privacyinvoked
555 * Get/set the dot11PrivacyInvoked value.
557 * MIB record parameters:
558 * parm1 Prism2 RID value.
559 * parm2 Bit value for PrivacyInvoked flag.
564 * isget MIBGET/MIBSET flag.
565 * wlandev wlan device structure.
566 * priv "priv" structure.
568 * msg Message structure.
577 static int prism2mib_privacyinvoked(struct mibrec *mib,
579 struct wlandevice *wlandev,
581 struct p80211msg_dot11req_mibset *msg,
584 if (wlandev->hostwep & HOSTWEP_DECRYPT) {
585 if (wlandev->hostwep & HOSTWEP_DECRYPT)
586 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
587 if (wlandev->hostwep & HOSTWEP_ENCRYPT)
588 mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
591 return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
595 * prism2mib_excludeunencrypted
597 * Get/set the dot11ExcludeUnencrypted value.
599 * MIB record parameters:
600 * parm1 Prism2 RID value.
601 * parm2 Bit value for ExcludeUnencrypted flag.
606 * isget MIBGET/MIBSET flag.
607 * wlandev wlan device structure.
608 * priv "priv" structure.
610 * msg Message structure.
619 static int prism2mib_excludeunencrypted(struct mibrec *mib,
621 struct wlandevice *wlandev,
623 struct p80211msg_dot11req_mibset *msg,
626 return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
630 * prism2mib_fragmentationthreshold
632 * Get/set the fragmentation threshold.
634 * MIB record parameters:
635 * parm1 Prism2 RID value.
641 * isget MIBGET/MIBSET flag.
642 * wlandev wlan device structure.
643 * priv "priv" structure.
645 * msg Message structure.
654 static int prism2mib_fragmentationthreshold(struct mibrec *mib,
656 struct wlandevice *wlandev,
658 struct p80211msg_dot11req_mibset *msg,
665 netdev_warn(wlandev->netdev,
666 "Attempt to set odd number FragmentationThreshold\n");
667 msg->resultcode.data =
668 P80211ENUM_resultcode_not_supported;
672 return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
678 * Get/set values in the "priv" data structure.
680 * MIB record parameters:
687 * isget MIBGET/MIBSET flag.
688 * wlandev wlan device structure.
689 * priv "priv" structure.
691 * msg Message structure.
700 static int prism2mib_priv(struct mibrec *mib,
702 struct wlandevice *wlandev,
704 struct p80211msg_dot11req_mibset *msg, void *data)
706 struct p80211pstrd *pstr = data;
709 case DIDmib_lnx_lnxConfigTable_lnxRSNAIE:{
710 struct hfa384x_wpa_data wpa;
713 hfa384x_drvr_getconfig(hw,
714 HFA384x_RID_CNFWPADATA,
717 pstr->len = le16_to_cpu(wpa.datalen);
718 memcpy(pstr->data, wpa.data, pstr->len);
720 wpa.datalen = cpu_to_le16(pstr->len);
721 memcpy(wpa.data, pstr->data, pstr->len);
723 hfa384x_drvr_setconfig(hw,
724 HFA384x_RID_CNFWPADATA,
731 netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
738 * prism2mgmt_pstr2bytestr
740 * Convert the pstr data in the WLAN message structure into an hfa384x
741 * byte string format.
744 * bytestr hfa384x byte string data type
745 * pstr wlan message data
752 void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
753 struct p80211pstrd *pstr)
755 bytestr->len = cpu_to_le16((u16)(pstr->len));
756 memcpy(bytestr->data, pstr->data, pstr->len);
760 * prism2mgmt_bytestr2pstr
762 * Convert the data in an hfa384x byte string format into a
763 * pstr in the WLAN message.
766 * bytestr hfa384x byte string data type
774 void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
775 struct p80211pstrd *pstr)
777 pstr->len = (u8)(le16_to_cpu(bytestr->len));
778 memcpy(pstr->data, bytestr->data, pstr->len);
782 * prism2mgmt_bytearea2pstr
784 * Convert the data in an hfa384x byte area format into a pstr
785 * in the WLAN message.
788 * bytearea hfa384x byte area data type
796 void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
799 memcpy(pstr->data, bytearea, len);