/* src/prism2/driver/prism2mib.c
*
* Management request for mibset/mibget
*
* 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 the mibset/mibget management
* functions.
*
* --------------------------------------------------------------------
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/wireless.h>
#include <linux/netdevice.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <asm/byteorder.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"
#define MIB_TMP_MAXLEN 200 /* Max length of RID record (in bytes). */
#define F_STA 0x1 /* MIB is supported on stations. */
#define F_READ 0x2 /* MIB may be read. */
#define F_WRITE 0x4 /* MIB may be written. */
struct mibrec {
u32 did;
u16 flag;
u16 parm1;
u16 parm2;
u16 parm3;
int (*func)(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data);
};
static int prism2mib_bytearea2pstr(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data);
static int prism2mib_uint32(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data);
static int prism2mib_flag(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data);
static int prism2mib_wepdefaultkey(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data);
static int prism2mib_privacyinvoked(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data);
static int prism2mib_excludeunencrypted(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data);
static int prism2mib_fragmentationthreshold(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data);
static int prism2mib_priv(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data);
static struct mibrec mibtab[] = {
/* dot11smt MIB's */
{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(1),
F_STA | F_WRITE,
HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
prism2mib_wepdefaultkey},
{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(2),
F_STA | F_WRITE,
HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
prism2mib_wepdefaultkey},
{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(3),
F_STA | F_WRITE,
HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
prism2mib_wepdefaultkey},
{DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(4),
F_STA | F_WRITE,
HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
prism2mib_wepdefaultkey},
{DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
prism2mib_privacyinvoked},
{DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
prism2mib_uint32},
{DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
prism2mib_excludeunencrypted},
/* dot11mac MIB's */
{DIDmib_dot11mac_dot11OperationTable_dot11MACAddress,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
prism2mib_bytearea2pstr},
{DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
F_STA | F_READ | F_WRITE,
HFA384x_RID_RTSTHRESH, 0, 0,
prism2mib_uint32},
{DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit,
F_STA | F_READ,
HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
prism2mib_uint32},
{DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit,
F_STA | F_READ,
HFA384x_RID_LONGRETRYLIMIT, 0, 0,
prism2mib_uint32},
{DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
F_STA | F_READ | F_WRITE,
HFA384x_RID_FRAGTHRESH, 0, 0,
prism2mib_fragmentationthreshold},
{DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime,
F_STA | F_READ,
HFA384x_RID_MAXTXLIFETIME, 0, 0,
prism2mib_uint32},
/* dot11phy MIB's */
{DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
F_STA | F_READ,
HFA384x_RID_CURRENTCHANNEL, 0, 0,
prism2mib_uint32},
{DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
F_STA | F_READ | F_WRITE,
HFA384x_RID_TXPOWERMAX, 0, 0,
prism2mib_uint32},
/* p2Static MIB's */
{DIDmib_p2_p2Static_p2CnfPortType,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFPORTTYPE, 0, 0,
prism2mib_uint32},
/* p2MAC MIB's */
{DIDmib_p2_p2MAC_p2CurrentTxRate,
F_STA | F_READ,
HFA384x_RID_CURRENTTXRATE, 0, 0,
prism2mib_uint32},
/* And finally, lnx mibs */
{DIDmib_lnx_lnxConfigTable_lnxRSNAIE,
F_STA | F_READ | F_WRITE,
HFA384x_RID_CNFWPADATA, 0, 0,
prism2mib_priv},
{0, 0, 0, 0, 0, NULL}
};
/*
* prism2mgmt_mibset_mibget
*
* Set the value of a mib item.
*
* 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_mibset_mibget(struct wlandevice *wlandev, void *msgp)
{
struct hfa384x *hw = wlandev->priv;
int result, isget;
struct mibrec *mib;
u16 which;
struct p80211msg_dot11req_mibset *msg = msgp;
struct p80211itemd *mibitem;
msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
msg->resultcode.data = P80211ENUM_resultcode_success;
/*
** Determine if this is an Access Point or a station.
*/
which = F_STA;
/*
** Find the MIB in the MIB table. Note that a MIB may be in the
** table twice...once for an AP and once for a station. Make sure
** to get the correct one. Note that DID=0 marks the end of the
** MIB table.
*/
mibitem = (struct p80211itemd *)msg->mibattribute.data;
for (mib = mibtab; mib->did != 0; mib++)
if (mib->did == mibitem->did && (mib->flag & which))
break;
if (mib->did == 0) {
msg->resultcode.data = P80211ENUM_resultcode_not_supported;
goto done;
}
/*
** Determine if this is a "mibget" or a "mibset". If this is a
** "mibget", then make sure that the MIB may be read. Otherwise,
** this is a "mibset" so make make sure that the MIB may be written.
*/
isget = (msg->msgcode == DIDmsg_dot11req_mibget);
if (isget) {
if (!(mib->flag & F_READ)) {
msg->resultcode.data =
P80211ENUM_resultcode_cant_get_writeonly_mib;
goto done;
}
} else {
if (!(mib->flag & F_WRITE)) {
msg->resultcode.data =
P80211ENUM_resultcode_cant_set_readonly_mib;
goto done;
}
}
/*
** Execute the MIB function. If things worked okay, then make
** sure that the MIB function also worked okay. If so, and this
** is a "mibget", then the status value must be set for both the
** "mibattribute" parameter and the mib item within the data
** portion of the "mibattribute".
*/
result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
if (msg->resultcode.data == P80211ENUM_resultcode_success) {
if (result != 0) {
pr_debug("get/set failure, result=%d\n", result);
msg->resultcode.data =
P80211ENUM_resultcode_implementation_failure;
} else {
if (isget) {
msg->mibattribute.status =
P80211ENUM_msgitem_status_data_ok;
mibitem->status =
P80211ENUM_msgitem_status_data_ok;
}
}
}
done:
return 0;
}
/*
* prism2mib_bytearea2pstr
*
* Get/set pstr data to/from a byte area.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Number of bytes of RID data.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_bytearea2pstr(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data)
{
int result;
struct p80211pstrd *pstr = data;
u8 bytebuf[MIB_TMP_MAXLEN];
if (isget) {
result =
hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
} else {
memset(bytebuf, 0, mib->parm2);
memcpy(bytebuf, pstr->data, pstr->len);
result =
hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
}
return result;
}
/*
* prism2mib_uint32
*
* Get/set uint32 data.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Not used.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_uint32(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data)
{
int result;
u32 *uint32 = data;
u8 bytebuf[MIB_TMP_MAXLEN];
u16 *wordbuf = (u16 *)bytebuf;
if (isget) {
result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
*uint32 = *wordbuf;
} else {
*wordbuf = *uint32;
result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
}
return result;
}
/*
* prism2mib_flag
*
* Get/set a flag.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Bit to get/set.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_flag(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data)
{
int result;
u32 *uint32 = data;
u8 bytebuf[MIB_TMP_MAXLEN];
u16 *wordbuf = (u16 *)bytebuf;
u32 flags;
result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
if (result == 0) {
flags = *wordbuf;
if (isget) {
*uint32 = (flags & mib->parm2) ?
P80211ENUM_truth_true : P80211ENUM_truth_false;
} else {
if ((*uint32) == P80211ENUM_truth_true)
flags |= mib->parm2;
else
flags &= ~mib->parm2;
*wordbuf = flags;
result =
hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
}
}
return result;
}
/*
* prism2mib_wepdefaultkey
*
* Get/set WEP default keys.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Number of bytes of RID data.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_wepdefaultkey(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data)
{
int result;
struct p80211pstrd *pstr = data;
u8 bytebuf[MIB_TMP_MAXLEN];
u16 len;
if (isget) {
result = 0; /* Should never happen. */
} else {
len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
memset(bytebuf, 0, len);
memcpy(bytebuf, pstr->data, pstr->len);
result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
}
return result;
}
/*
* prism2mib_privacyinvoked
*
* Get/set the dot11PrivacyInvoked value.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Bit value for PrivacyInvoked flag.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_privacyinvoked(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data)
{
if (wlandev->hostwep & HOSTWEP_DECRYPT) {
if (wlandev->hostwep & HOSTWEP_DECRYPT)
mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
if (wlandev->hostwep & HOSTWEP_ENCRYPT)
mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
}
return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
}
/*
* prism2mib_excludeunencrypted
*
* Get/set the dot11ExcludeUnencrypted value.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Bit value for ExcludeUnencrypted flag.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_excludeunencrypted(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data)
{
return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
}
/*
* prism2mib_fragmentationthreshold
*
* Get/set the fragmentation threshold.
*
* MIB record parameters:
* parm1 Prism2 RID value.
* parm2 Not used.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_fragmentationthreshold(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg,
void *data)
{
u32 *uint32 = data;
if (!isget)
if ((*uint32) % 2) {
netdev_warn(wlandev->netdev,
"Attempt to set odd number FragmentationThreshold\n");
msg->resultcode.data =
P80211ENUM_resultcode_not_supported;
return 0;
}
return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
}
/*
* prism2mib_priv
*
* Get/set values in the "priv" data structure.
*
* MIB record parameters:
* parm1 Not used.
* parm2 Not used.
* parm3 Not used.
*
* Arguments:
* mib MIB record.
* isget MIBGET/MIBSET flag.
* wlandev wlan device structure.
* priv "priv" structure.
* hw "hw" structure.
* msg Message structure.
* data Data buffer.
*
* Returns:
* 0 - Success.
* ~0 - Error.
*
*/
static int prism2mib_priv(struct mibrec *mib,
int isget,
struct wlandevice *wlandev,
struct hfa384x *hw,
struct p80211msg_dot11req_mibset *msg, void *data)
{
struct p80211pstrd *pstr = data;
switch (mib->did) {
case DIDmib_lnx_lnxConfigTable_lnxRSNAIE:{
struct hfa384x_wpa_data wpa;
if (isget) {
hfa384x_drvr_getconfig(hw,
HFA384x_RID_CNFWPADATA,
(u8 *)&wpa,
sizeof(wpa));
pstr->len = le16_to_cpu(wpa.datalen);
memcpy(pstr->data, wpa.data, pstr->len);
} else {
wpa.datalen = cpu_to_le16(pstr->len);
memcpy(wpa.data, pstr->data, pstr->len);
hfa384x_drvr_setconfig(hw,
HFA384x_RID_CNFWPADATA,
(u8 *)&wpa,
sizeof(wpa));
}
break;
}
default:
netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
}
return 0;
}
/*
* prism2mgmt_pstr2bytestr
*
* Convert the pstr data in the WLAN message structure into an hfa384x
* byte string format.
*
* Arguments:
* bytestr hfa384x byte string data type
* pstr wlan message data
*
* Returns:
* Nothing
*
*/
void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
struct p80211pstrd *pstr)
{
bytestr->len = cpu_to_le16((u16)(pstr->len));
memcpy(bytestr->data, pstr->data, pstr->len);
}
/*
* prism2mgmt_bytestr2pstr
*
* Convert the data in an hfa384x byte string format into a
* pstr in the WLAN message.
*
* Arguments:
* bytestr hfa384x byte string data type
* msg wlan message
*
* Returns:
* Nothing
*
*/
void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
struct p80211pstrd *pstr)
{
pstr->len = (u8)(le16_to_cpu((u16)(bytestr->len)));
memcpy(pstr->data, bytestr->data, pstr->len);
}
/*
* prism2mgmt_bytearea2pstr
*
* Convert the data in an hfa384x byte area format into a pstr
* in the WLAN message.
*
* Arguments:
* bytearea hfa384x byte area data type
* msg wlan message
*
* Returns:
* Nothing
*
*/
void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
{
pstr->len = (u8)len;
memcpy(pstr->data, bytearea, len);
}