// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* 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 #include #include #include #include #include #include #include #include #include #include #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_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_excludeunencrypted}, /* 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 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_CONFIGTABLE_RSNAIE: { 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(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); }