diff options
Diffstat (limited to 'drivers/staging/wlan-ng/prism2mib.c')
| -rw-r--r-- | drivers/staging/wlan-ng/prism2mib.c | 763 |
1 files changed, 763 insertions, 0 deletions
diff --git a/drivers/staging/wlan-ng/prism2mib.c b/drivers/staging/wlan-ng/prism2mib.c new file mode 100644 index 000000000..fcf831387 --- /dev/null +++ b/drivers/staging/wlan-ng/prism2mib.c @@ -0,0 +1,763 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) +/* + * + * 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_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_wepdefaultkeystable_key(1), + F_STA | F_WRITE, + HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0, + prism2mib_wepdefaultkey}, + {didmib_dot11smt_wepdefaultkeystable_key(2), + F_STA | F_WRITE, + HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0, + prism2mib_wepdefaultkey}, + {didmib_dot11smt_wepdefaultkeystable_key(3), + F_STA | F_WRITE, + HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0, + prism2mib_wepdefaultkey}, + {didmib_dot11smt_wepdefaultkeystable_key(4), + F_STA | F_WRITE, + HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0, + prism2mib_wepdefaultkey}, + {DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED, + F_STA | F_READ | F_WRITE, + HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0, + prism2mib_privacyinvoked}, + {DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID, + F_STA | F_READ | F_WRITE, + HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0, + prism2mib_uint32}, + {DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED, + F_STA | F_READ | F_WRITE, + HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0, + prism2mib_flag}, + + /* dot11mac MIB's */ + + {DIDMIB_DOT11MAC_OPERATIONTABLE_MACADDRESS, + F_STA | F_READ | F_WRITE, + HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0, + prism2mib_bytearea2pstr}, + {DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD, + F_STA | F_READ | F_WRITE, + HFA384x_RID_RTSTHRESH, 0, 0, + prism2mib_uint32}, + {DIDMIB_DOT11MAC_OPERATIONTABLE_SHORTRETRYLIMIT, + F_STA | F_READ, + HFA384x_RID_SHORTRETRYLIMIT, 0, 0, + prism2mib_uint32}, + {DIDMIB_DOT11MAC_OPERATIONTABLE_LONGRETRYLIMIT, + F_STA | F_READ, + HFA384x_RID_LONGRETRYLIMIT, 0, 0, + prism2mib_uint32}, + {DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD, + F_STA | F_READ | F_WRITE, + HFA384x_RID_FRAGTHRESH, 0, 0, + prism2mib_fragmentationthreshold}, + {DIDMIB_DOT11MAC_OPERATIONTABLE_MAXTRANSMITMSDULIFETIME, + F_STA | F_READ, + HFA384x_RID_MAXTXLIFETIME, 0, 0, + prism2mib_uint32}, + + /* dot11phy MIB's */ + + {DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL, + F_STA | F_READ, + HFA384x_RID_CURRENTCHANNEL, 0, 0, + prism2mib_uint32}, + {DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL, + F_STA | F_READ | F_WRITE, + HFA384x_RID_TXPOWERMAX, 0, 0, + prism2mib_uint32}, + + /* p2Static MIB's */ + + {DIDMIB_P2_STATIC_CNFPORTTYPE, + F_STA | F_READ | F_WRITE, + HFA384x_RID_CNFPORTTYPE, 0, 0, + prism2mib_uint32}, + + /* p2MAC MIB's */ + + {DIDMIB_P2_MAC_CURRENTTXRATE, + F_STA | F_READ, + HFA384x_RID_CURRENTTXRATE, 0, 0, + prism2mib_uint32}, + + /* And finally, lnx mibs */ + {DIDMIB_LNX_CONFIGTABLE_RSNAIE, + 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 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_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_CONFIGTABLE_RSNAIE: { + /* + * This can never work: wpa is on the stack + * and has no bytes allocated in wpa.data. + */ + struct hfa384x_wpa_data wpa; + + if (isget) { + hfa384x_drvr_getconfig(hw, + HFA384x_RID_CNFWPADATA, + (u8 *)&wpa, + sizeof(wpa)); + pstr->len = 0; + } else { + wpa.datalen = 0; + + 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(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); +} |