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/drivers/net/wireless/prism54/isl_ioctl.c

http://github.com/mirrors/linux
C | 2910 lines | 2193 code | 444 blank | 273 comment | 323 complexity | 5bf01e167f7eddfe96d97b272a402a9b MD5 | raw file

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   1/*
   2 *  Copyright (C) 2002 Intersil Americas Inc.
   3 *            (C) 2003,2004 Aurelien Alleaume <slts@free.fr>
   4 *            (C) 2003 Herbert Valerio Riedel <hvr@gnu.org>
   5 *            (C) 2003 Luis R. Rodriguez <mcgrof@ruslug.rutgers.edu>
   6 *
   7 *  This program is free software; you can redistribute it and/or modify
   8 *  it under the terms of the GNU General Public License as published by
   9 *  the Free Software Foundation; either version 2 of the License
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15 *
  16 *  You should have received a copy of the GNU General Public License
  17 *  along with this program; if not, write to the Free Software
  18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 *
  20 */
  21
  22#include <linux/capability.h>
  23#include <linux/module.h>
  24#include <linux/kernel.h>
  25#include <linux/if_arp.h>
  26#include <linux/slab.h>
  27#include <linux/pci.h>
  28
  29#include <asm/uaccess.h>
  30
  31#include "prismcompat.h"
  32#include "isl_ioctl.h"
  33#include "islpci_mgt.h"
  34#include "isl_oid.h"		/* additional types and defs for isl38xx fw */
  35#include "oid_mgt.h"
  36
  37#include <net/iw_handler.h>	/* New driver API */
  38
  39#define KEY_SIZE_WEP104 13	/* 104/128-bit WEP keys */
  40#define KEY_SIZE_WEP40  5	/* 40/64-bit WEP keys */
  41/* KEY_SIZE_TKIP should match isl_oid.h, struct obj_key.key[] size */
  42#define KEY_SIZE_TKIP   32	/* TKIP keys */
  43
  44static void prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
  45				u8 *wpa_ie, size_t wpa_ie_len);
  46static size_t prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie);
  47static int prism54_set_wpa(struct net_device *, struct iw_request_info *,
  48				__u32 *, char *);
  49
  50/* In 500 kbps */
  51static const unsigned char scan_rate_list[] = { 2, 4, 11, 22,
  52						12, 18, 24, 36,
  53						48, 72, 96, 108 };
  54
  55/**
  56 * prism54_mib_mode_helper - MIB change mode helper function
  57 * @mib: the &struct islpci_mib object to modify
  58 * @iw_mode: new mode (%IW_MODE_*)
  59 *
  60 *  This is a helper function, hence it does not lock. Make sure
  61 *  caller deals with locking *if* necessary. This function sets the
  62 *  mode-dependent mib values and does the mapping of the Linux
  63 *  Wireless API modes to Device firmware modes. It also checks for
  64 *  correct valid Linux wireless modes.
  65 */
  66static int
  67prism54_mib_mode_helper(islpci_private *priv, u32 iw_mode)
  68{
  69	u32 config = INL_CONFIG_MANUALRUN;
  70	u32 mode, bsstype;
  71
  72	/* For now, just catch early the Repeater and Secondary modes here */
  73	if (iw_mode == IW_MODE_REPEAT || iw_mode == IW_MODE_SECOND) {
  74		printk(KERN_DEBUG
  75		       "%s(): Sorry, Repeater mode and Secondary mode "
  76		       "are not yet supported by this driver.\n", __func__);
  77		return -EINVAL;
  78	}
  79
  80	priv->iw_mode = iw_mode;
  81
  82	switch (iw_mode) {
  83	case IW_MODE_AUTO:
  84		mode = INL_MODE_CLIENT;
  85		bsstype = DOT11_BSSTYPE_ANY;
  86		break;
  87	case IW_MODE_ADHOC:
  88		mode = INL_MODE_CLIENT;
  89		bsstype = DOT11_BSSTYPE_IBSS;
  90		break;
  91	case IW_MODE_INFRA:
  92		mode = INL_MODE_CLIENT;
  93		bsstype = DOT11_BSSTYPE_INFRA;
  94		break;
  95	case IW_MODE_MASTER:
  96		mode = INL_MODE_AP;
  97		bsstype = DOT11_BSSTYPE_INFRA;
  98		break;
  99	case IW_MODE_MONITOR:
 100		mode = INL_MODE_PROMISCUOUS;
 101		bsstype = DOT11_BSSTYPE_ANY;
 102		config |= INL_CONFIG_RXANNEX;
 103		break;
 104	default:
 105		return -EINVAL;
 106	}
 107
 108	if (init_wds)
 109		config |= INL_CONFIG_WDS;
 110	mgt_set(priv, DOT11_OID_BSSTYPE, &bsstype);
 111	mgt_set(priv, OID_INL_CONFIG, &config);
 112	mgt_set(priv, OID_INL_MODE, &mode);
 113
 114	return 0;
 115}
 116
 117/**
 118 * prism54_mib_init - fill MIB cache with defaults
 119 *
 120 *  this function initializes the struct given as @mib with defaults,
 121 *  of which many are retrieved from the global module parameter
 122 *  variables.
 123 */
 124
 125void
 126prism54_mib_init(islpci_private *priv)
 127{
 128	u32 channel, authen, wep, filter, dot1x, mlme, conformance, power, mode;
 129	struct obj_buffer psm_buffer = {
 130		.size = PSM_BUFFER_SIZE,
 131		.addr = priv->device_psm_buffer
 132	};
 133
 134	channel = CARD_DEFAULT_CHANNEL;
 135	authen = CARD_DEFAULT_AUTHEN;
 136	wep = CARD_DEFAULT_WEP;
 137	filter = CARD_DEFAULT_FILTER; /* (0) Do not filter un-encrypted data */
 138	dot1x = CARD_DEFAULT_DOT1X;
 139	mlme = CARD_DEFAULT_MLME_MODE;
 140	conformance = CARD_DEFAULT_CONFORMANCE;
 141	power = 127;
 142	mode = CARD_DEFAULT_IW_MODE;
 143
 144	mgt_set(priv, DOT11_OID_CHANNEL, &channel);
 145	mgt_set(priv, DOT11_OID_AUTHENABLE, &authen);
 146	mgt_set(priv, DOT11_OID_PRIVACYINVOKED, &wep);
 147	mgt_set(priv, DOT11_OID_PSMBUFFER, &psm_buffer);
 148	mgt_set(priv, DOT11_OID_EXUNENCRYPTED, &filter);
 149	mgt_set(priv, DOT11_OID_DOT1XENABLE, &dot1x);
 150	mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlme);
 151	mgt_set(priv, OID_INL_DOT11D_CONFORMANCE, &conformance);
 152	mgt_set(priv, OID_INL_OUTPUTPOWER, &power);
 153
 154	/* This sets all of the mode-dependent values */
 155	prism54_mib_mode_helper(priv, mode);
 156}
 157
 158/* this will be executed outside of atomic context thanks to
 159 * schedule_work(), thus we can as well use sleeping semaphore
 160 * locking */
 161void
 162prism54_update_stats(struct work_struct *work)
 163{
 164	islpci_private *priv = container_of(work, islpci_private, stats_work);
 165	char *data;
 166	int j;
 167	struct obj_bss bss, *bss2;
 168	union oid_res_t r;
 169
 170	mutex_lock(&priv->stats_lock);
 171
 172/* Noise floor.
 173 * I'm not sure if the unit is dBm.
 174 * Note : If we are not connected, this value seems to be irrelevant. */
 175
 176	mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
 177	priv->local_iwstatistics.qual.noise = r.u;
 178
 179/* Get the rssi of the link. To do this we need to retrieve a bss. */
 180
 181	/* First get the MAC address of the AP we are associated with. */
 182	mgt_get_request(priv, DOT11_OID_BSSID, 0, NULL, &r);
 183	data = r.ptr;
 184
 185	/* copy this MAC to the bss */
 186	memcpy(bss.address, data, 6);
 187	kfree(data);
 188
 189	/* now ask for the corresponding bss */
 190	j = mgt_get_request(priv, DOT11_OID_BSSFIND, 0, (void *) &bss, &r);
 191	bss2 = r.ptr;
 192	/* report the rssi and use it to calculate
 193	 *  link quality through a signal-noise
 194	 *  ratio */
 195	priv->local_iwstatistics.qual.level = bss2->rssi;
 196	priv->local_iwstatistics.qual.qual =
 197	    bss2->rssi - priv->iwstatistics.qual.noise;
 198
 199	kfree(bss2);
 200
 201	/* report that the stats are new */
 202	priv->local_iwstatistics.qual.updated = 0x7;
 203
 204/* Rx : unable to decrypt the MPDU */
 205	mgt_get_request(priv, DOT11_OID_PRIVRXFAILED, 0, NULL, &r);
 206	priv->local_iwstatistics.discard.code = r.u;
 207
 208/* Tx : Max MAC retries num reached */
 209	mgt_get_request(priv, DOT11_OID_MPDUTXFAILED, 0, NULL, &r);
 210	priv->local_iwstatistics.discard.retries = r.u;
 211
 212	mutex_unlock(&priv->stats_lock);
 213}
 214
 215struct iw_statistics *
 216prism54_get_wireless_stats(struct net_device *ndev)
 217{
 218	islpci_private *priv = netdev_priv(ndev);
 219
 220	/* If the stats are being updated return old data */
 221	if (mutex_trylock(&priv->stats_lock)) {
 222		memcpy(&priv->iwstatistics, &priv->local_iwstatistics,
 223		       sizeof (struct iw_statistics));
 224		/* They won't be marked updated for the next time */
 225		priv->local_iwstatistics.qual.updated = 0;
 226		mutex_unlock(&priv->stats_lock);
 227	} else
 228		priv->iwstatistics.qual.updated = 0;
 229
 230	/* Update our wireless stats, but do not schedule to often
 231	 * (max 1 HZ) */
 232	if ((priv->stats_timestamp == 0) ||
 233	    time_after(jiffies, priv->stats_timestamp + 1 * HZ)) {
 234		schedule_work(&priv->stats_work);
 235		priv->stats_timestamp = jiffies;
 236	}
 237
 238	return &priv->iwstatistics;
 239}
 240
 241static int
 242prism54_commit(struct net_device *ndev, struct iw_request_info *info,
 243	       char *cwrq, char *extra)
 244{
 245	islpci_private *priv = netdev_priv(ndev);
 246
 247	/* simply re-set the last set SSID, this should commit most stuff */
 248
 249	/* Commit in Monitor mode is not necessary, also setting essid
 250	 * in Monitor mode does not make sense and isn't allowed for this
 251	 * device's firmware */
 252	if (priv->iw_mode != IW_MODE_MONITOR)
 253		return mgt_set_request(priv, DOT11_OID_SSID, 0, NULL);
 254	return 0;
 255}
 256
 257static int
 258prism54_get_name(struct net_device *ndev, struct iw_request_info *info,
 259		 char *cwrq, char *extra)
 260{
 261	islpci_private *priv = netdev_priv(ndev);
 262	char *capabilities;
 263	union oid_res_t r;
 264	int rvalue;
 265
 266	if (islpci_get_state(priv) < PRV_STATE_INIT) {
 267		strncpy(cwrq, "NOT READY!", IFNAMSIZ);
 268		return 0;
 269	}
 270	rvalue = mgt_get_request(priv, OID_INL_PHYCAPABILITIES, 0, NULL, &r);
 271
 272	switch (r.u) {
 273	case INL_PHYCAP_5000MHZ:
 274		capabilities = "IEEE 802.11a/b/g";
 275		break;
 276	case INL_PHYCAP_FAA:
 277		capabilities = "IEEE 802.11b/g - FAA Support";
 278		break;
 279	case INL_PHYCAP_2400MHZ:
 280	default:
 281		capabilities = "IEEE 802.11b/g";	/* Default */
 282		break;
 283	}
 284	strncpy(cwrq, capabilities, IFNAMSIZ);
 285	return rvalue;
 286}
 287
 288static int
 289prism54_set_freq(struct net_device *ndev, struct iw_request_info *info,
 290		 struct iw_freq *fwrq, char *extra)
 291{
 292	islpci_private *priv = netdev_priv(ndev);
 293	int rvalue;
 294	u32 c;
 295
 296	if (fwrq->m < 1000)
 297		/* we have a channel number */
 298		c = fwrq->m;
 299	else
 300		c = (fwrq->e == 1) ? channel_of_freq(fwrq->m / 100000) : 0;
 301
 302	rvalue = c ? mgt_set_request(priv, DOT11_OID_CHANNEL, 0, &c) : -EINVAL;
 303
 304	/* Call commit handler */
 305	return (rvalue ? rvalue : -EINPROGRESS);
 306}
 307
 308static int
 309prism54_get_freq(struct net_device *ndev, struct iw_request_info *info,
 310		 struct iw_freq *fwrq, char *extra)
 311{
 312	islpci_private *priv = netdev_priv(ndev);
 313	union oid_res_t r;
 314	int rvalue;
 315
 316	rvalue = mgt_get_request(priv, DOT11_OID_CHANNEL, 0, NULL, &r);
 317	fwrq->i = r.u;
 318	rvalue |= mgt_get_request(priv, DOT11_OID_FREQUENCY, 0, NULL, &r);
 319	fwrq->m = r.u;
 320	fwrq->e = 3;
 321
 322	return rvalue;
 323}
 324
 325static int
 326prism54_set_mode(struct net_device *ndev, struct iw_request_info *info,
 327		 __u32 * uwrq, char *extra)
 328{
 329	islpci_private *priv = netdev_priv(ndev);
 330	u32 mlmeautolevel = CARD_DEFAULT_MLME_MODE;
 331
 332	/* Let's see if the user passed a valid Linux Wireless mode */
 333	if (*uwrq > IW_MODE_MONITOR || *uwrq < IW_MODE_AUTO) {
 334		printk(KERN_DEBUG
 335		       "%s: %s() You passed a non-valid init_mode.\n",
 336		       priv->ndev->name, __func__);
 337		return -EINVAL;
 338	}
 339
 340	down_write(&priv->mib_sem);
 341
 342	if (prism54_mib_mode_helper(priv, *uwrq)) {
 343		up_write(&priv->mib_sem);
 344		return -EOPNOTSUPP;
 345	}
 346
 347	/* the ACL code needs an intermediate mlmeautolevel. The wpa stuff an
 348	 * extended one.
 349	 */
 350	if ((*uwrq == IW_MODE_MASTER) && (priv->acl.policy != MAC_POLICY_OPEN))
 351		mlmeautolevel = DOT11_MLME_INTERMEDIATE;
 352	if (priv->wpa)
 353		mlmeautolevel = DOT11_MLME_EXTENDED;
 354
 355	mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlmeautolevel);
 356
 357	if (mgt_commit(priv)) {
 358		up_write(&priv->mib_sem);
 359		return -EIO;
 360	}
 361	priv->ndev->type = (priv->iw_mode == IW_MODE_MONITOR)
 362	    ? priv->monitor_type : ARPHRD_ETHER;
 363	up_write(&priv->mib_sem);
 364
 365	return 0;
 366}
 367
 368/* Use mib cache */
 369static int
 370prism54_get_mode(struct net_device *ndev, struct iw_request_info *info,
 371		 __u32 * uwrq, char *extra)
 372{
 373	islpci_private *priv = netdev_priv(ndev);
 374
 375	BUG_ON((priv->iw_mode < IW_MODE_AUTO) || (priv->iw_mode >
 376						  IW_MODE_MONITOR));
 377	*uwrq = priv->iw_mode;
 378
 379	return 0;
 380}
 381
 382/* we use DOT11_OID_EDTHRESHOLD. From what I guess the card will not try to
 383 * emit data if (sensitivity > rssi - noise) (in dBm).
 384 * prism54_set_sens does not seem to work.
 385 */
 386
 387static int
 388prism54_set_sens(struct net_device *ndev, struct iw_request_info *info,
 389		 struct iw_param *vwrq, char *extra)
 390{
 391	islpci_private *priv = netdev_priv(ndev);
 392	u32 sens;
 393
 394	/* by default  the card sets this to 20. */
 395	sens = vwrq->disabled ? 20 : vwrq->value;
 396
 397	return mgt_set_request(priv, DOT11_OID_EDTHRESHOLD, 0, &sens);
 398}
 399
 400static int
 401prism54_get_sens(struct net_device *ndev, struct iw_request_info *info,
 402		 struct iw_param *vwrq, char *extra)
 403{
 404	islpci_private *priv = netdev_priv(ndev);
 405	union oid_res_t r;
 406	int rvalue;
 407
 408	rvalue = mgt_get_request(priv, DOT11_OID_EDTHRESHOLD, 0, NULL, &r);
 409
 410	vwrq->value = r.u;
 411	vwrq->disabled = (vwrq->value == 0);
 412	vwrq->fixed = 1;
 413
 414	return rvalue;
 415}
 416
 417static int
 418prism54_get_range(struct net_device *ndev, struct iw_request_info *info,
 419		  struct iw_point *dwrq, char *extra)
 420{
 421	struct iw_range *range = (struct iw_range *) extra;
 422	islpci_private *priv = netdev_priv(ndev);
 423	u8 *data;
 424	int i, m, rvalue;
 425	struct obj_frequencies *freq;
 426	union oid_res_t r;
 427
 428	memset(range, 0, sizeof (struct iw_range));
 429	dwrq->length = sizeof (struct iw_range);
 430
 431	/* set the wireless extension version number */
 432	range->we_version_source = SUPPORTED_WIRELESS_EXT;
 433	range->we_version_compiled = WIRELESS_EXT;
 434
 435	/* Now the encoding capabilities */
 436	range->num_encoding_sizes = 3;
 437	/* 64(40) bits WEP */
 438	range->encoding_size[0] = 5;
 439	/* 128(104) bits WEP */
 440	range->encoding_size[1] = 13;
 441	/* 256 bits for WPA-PSK */
 442	range->encoding_size[2] = 32;
 443	/* 4 keys are allowed */
 444	range->max_encoding_tokens = 4;
 445
 446	/* we don't know the quality range... */
 447	range->max_qual.level = 0;
 448	range->max_qual.noise = 0;
 449	range->max_qual.qual = 0;
 450	/* these value describe an average quality. Needs more tweaking... */
 451	range->avg_qual.level = -80;	/* -80 dBm */
 452	range->avg_qual.noise = 0;	/* don't know what to put here */
 453	range->avg_qual.qual = 0;
 454
 455	range->sensitivity = 200;
 456
 457	/* retry limit capabilities */
 458	range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
 459	range->retry_flags = IW_RETRY_LIMIT;
 460	range->r_time_flags = IW_RETRY_LIFETIME;
 461
 462	/* I don't know the range. Put stupid things here */
 463	range->min_retry = 1;
 464	range->max_retry = 65535;
 465	range->min_r_time = 1024;
 466	range->max_r_time = 65535 * 1024;
 467
 468	/* txpower is supported in dBm's */
 469	range->txpower_capa = IW_TXPOW_DBM;
 470
 471	/* Event capability (kernel + driver) */
 472	range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
 473	IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
 474	IW_EVENT_CAPA_MASK(SIOCGIWAP));
 475	range->event_capa[1] = IW_EVENT_CAPA_K_1;
 476	range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVCUSTOM);
 477
 478	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 479		IW_ENC_CAPA_CIPHER_TKIP;
 480
 481	if (islpci_get_state(priv) < PRV_STATE_INIT)
 482		return 0;
 483
 484	/* Request the device for the supported frequencies
 485	 * not really relevant since some devices will report the 5 GHz band
 486	 * frequencies even if they don't support them.
 487	 */
 488	rvalue =
 489	    mgt_get_request(priv, DOT11_OID_SUPPORTEDFREQUENCIES, 0, NULL, &r);
 490	freq = r.ptr;
 491
 492	range->num_channels = freq->nr;
 493	range->num_frequency = freq->nr;
 494
 495	m = min(IW_MAX_FREQUENCIES, (int) freq->nr);
 496	for (i = 0; i < m; i++) {
 497		range->freq[i].m = freq->mhz[i];
 498		range->freq[i].e = 6;
 499		range->freq[i].i = channel_of_freq(freq->mhz[i]);
 500	}
 501	kfree(freq);
 502
 503	rvalue |= mgt_get_request(priv, DOT11_OID_SUPPORTEDRATES, 0, NULL, &r);
 504	data = r.ptr;
 505
 506	/* We got an array of char. It is NULL terminated. */
 507	i = 0;
 508	while ((i < IW_MAX_BITRATES) && (*data != 0)) {
 509		/*       the result must be in bps. The card gives us 500Kbps */
 510		range->bitrate[i] = *data * 500000;
 511		i++;
 512		data++;
 513	}
 514	range->num_bitrates = i;
 515	kfree(r.ptr);
 516
 517	return rvalue;
 518}
 519
 520/* Set AP address*/
 521
 522static int
 523prism54_set_wap(struct net_device *ndev, struct iw_request_info *info,
 524		struct sockaddr *awrq, char *extra)
 525{
 526	islpci_private *priv = netdev_priv(ndev);
 527	char bssid[6];
 528	int rvalue;
 529
 530	if (awrq->sa_family != ARPHRD_ETHER)
 531		return -EINVAL;
 532
 533	/* prepare the structure for the set object */
 534	memcpy(&bssid[0], awrq->sa_data, 6);
 535
 536	/* set the bssid -- does this make sense when in AP mode? */
 537	rvalue = mgt_set_request(priv, DOT11_OID_BSSID, 0, &bssid);
 538
 539	return (rvalue ? rvalue : -EINPROGRESS);	/* Call commit handler */
 540}
 541
 542/* get AP address*/
 543
 544static int
 545prism54_get_wap(struct net_device *ndev, struct iw_request_info *info,
 546		struct sockaddr *awrq, char *extra)
 547{
 548	islpci_private *priv = netdev_priv(ndev);
 549	union oid_res_t r;
 550	int rvalue;
 551
 552	rvalue = mgt_get_request(priv, DOT11_OID_BSSID, 0, NULL, &r);
 553	memcpy(awrq->sa_data, r.ptr, 6);
 554	awrq->sa_family = ARPHRD_ETHER;
 555	kfree(r.ptr);
 556
 557	return rvalue;
 558}
 559
 560static int
 561prism54_set_scan(struct net_device *dev, struct iw_request_info *info,
 562		 struct iw_param *vwrq, char *extra)
 563{
 564	/* hehe the device does this automagicaly */
 565	return 0;
 566}
 567
 568/* a little helper that will translate our data into a card independent
 569 * format that the Wireless Tools will understand. This was inspired by
 570 * the "Aironet driver for 4500 and 4800 series cards" (GPL)
 571 */
 572
 573static char *
 574prism54_translate_bss(struct net_device *ndev, struct iw_request_info *info,
 575		      char *current_ev, char *end_buf, struct obj_bss *bss,
 576		      char noise)
 577{
 578	struct iw_event iwe;	/* Temporary buffer */
 579	short cap;
 580	islpci_private *priv = netdev_priv(ndev);
 581	u8 wpa_ie[MAX_WPA_IE_LEN];
 582	size_t wpa_ie_len;
 583
 584	/* The first entry must be the MAC address */
 585	memcpy(iwe.u.ap_addr.sa_data, bss->address, 6);
 586	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 587	iwe.cmd = SIOCGIWAP;
 588	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 589					  &iwe, IW_EV_ADDR_LEN);
 590
 591	/* The following entries will be displayed in the same order we give them */
 592
 593	/* The ESSID. */
 594	iwe.u.data.length = bss->ssid.length;
 595	iwe.u.data.flags = 1;
 596	iwe.cmd = SIOCGIWESSID;
 597	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
 598					  &iwe, bss->ssid.octets);
 599
 600	/* Capabilities */
 601#define CAP_ESS 0x01
 602#define CAP_IBSS 0x02
 603#define CAP_CRYPT 0x10
 604
 605	/* Mode */
 606	cap = bss->capinfo;
 607	iwe.u.mode = 0;
 608	if (cap & CAP_ESS)
 609		iwe.u.mode = IW_MODE_MASTER;
 610	else if (cap & CAP_IBSS)
 611		iwe.u.mode = IW_MODE_ADHOC;
 612	iwe.cmd = SIOCGIWMODE;
 613	if (iwe.u.mode)
 614		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 615						  &iwe, IW_EV_UINT_LEN);
 616
 617	/* Encryption capability */
 618	if (cap & CAP_CRYPT)
 619		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
 620	else
 621		iwe.u.data.flags = IW_ENCODE_DISABLED;
 622	iwe.u.data.length = 0;
 623	iwe.cmd = SIOCGIWENCODE;
 624	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
 625					  &iwe, NULL);
 626
 627	/* Add frequency. (short) bss->channel is the frequency in MHz */
 628	iwe.u.freq.m = bss->channel;
 629	iwe.u.freq.e = 6;
 630	iwe.cmd = SIOCGIWFREQ;
 631	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 632					  &iwe, IW_EV_FREQ_LEN);
 633
 634	/* Add quality statistics */
 635	iwe.u.qual.level = bss->rssi;
 636	iwe.u.qual.noise = noise;
 637	/* do a simple SNR for quality */
 638	iwe.u.qual.qual = bss->rssi - noise;
 639	iwe.cmd = IWEVQUAL;
 640	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 641					  &iwe, IW_EV_QUAL_LEN);
 642
 643	/* Add WPA/RSN Information Element, if any */
 644	wpa_ie_len = prism54_wpa_bss_ie_get(priv, bss->address, wpa_ie);
 645	if (wpa_ie_len > 0) {
 646		iwe.cmd = IWEVGENIE;
 647		iwe.u.data.length = min(wpa_ie_len, (size_t)MAX_WPA_IE_LEN);
 648		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
 649						  &iwe, wpa_ie);
 650	}
 651	/* Do the bitrates */
 652	{
 653		char *current_val = current_ev + iwe_stream_lcp_len(info);
 654		int i;
 655		int mask;
 656
 657		iwe.cmd = SIOCGIWRATE;
 658		/* Those two flags are ignored... */
 659		iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 660
 661		/* Parse the bitmask */
 662		mask = 0x1;
 663		for(i = 0; i < sizeof(scan_rate_list); i++) {
 664			if(bss->rates & mask) {
 665				iwe.u.bitrate.value = (scan_rate_list[i] * 500000);
 666				current_val = iwe_stream_add_value(
 667					info, current_ev, current_val,
 668					end_buf, &iwe, IW_EV_PARAM_LEN);
 669			}
 670			mask <<= 1;
 671		}
 672		/* Check if we added any event */
 673		if ((current_val - current_ev) > iwe_stream_lcp_len(info))
 674			current_ev = current_val;
 675	}
 676
 677	return current_ev;
 678}
 679
 680static int
 681prism54_get_scan(struct net_device *ndev, struct iw_request_info *info,
 682		 struct iw_point *dwrq, char *extra)
 683{
 684	islpci_private *priv = netdev_priv(ndev);
 685	int i, rvalue;
 686	struct obj_bsslist *bsslist;
 687	u32 noise = 0;
 688	char *current_ev = extra;
 689	union oid_res_t r;
 690
 691	if (islpci_get_state(priv) < PRV_STATE_INIT) {
 692		/* device is not ready, fail gently */
 693		dwrq->length = 0;
 694		return 0;
 695	}
 696
 697	/* first get the noise value. We will use it to report the link quality */
 698	rvalue = mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
 699	noise = r.u;
 700
 701	/* Ask the device for a list of known bss.
 702	* The old API, using SIOCGIWAPLIST, had a hard limit of IW_MAX_AP=64.
 703	* The new API, using SIOCGIWSCAN, is only limited by the buffer size.
 704	* WE-14->WE-16, the buffer is limited to IW_SCAN_MAX_DATA bytes.
 705	* Starting with WE-17, the buffer can be as big as needed.
 706	* But the device won't repport anything if you change the value
 707	* of IWMAX_BSS=24. */
 708
 709	rvalue |= mgt_get_request(priv, DOT11_OID_BSSLIST, 0, NULL, &r);
 710	bsslist = r.ptr;
 711
 712	/* ok now, scan the list and translate its info */
 713	for (i = 0; i < (int) bsslist->nr; i++) {
 714		current_ev = prism54_translate_bss(ndev, info, current_ev,
 715						   extra + dwrq->length,
 716						   &(bsslist->bsslist[i]),
 717						   noise);
 718
 719		/* Check if there is space for one more entry */
 720		if((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
 721			/* Ask user space to try again with a bigger buffer */
 722			rvalue = -E2BIG;
 723			break;
 724		}
 725	}
 726
 727	kfree(bsslist);
 728	dwrq->length = (current_ev - extra);
 729	dwrq->flags = 0;	/* todo */
 730
 731	return rvalue;
 732}
 733
 734static int
 735prism54_set_essid(struct net_device *ndev, struct iw_request_info *info,
 736		  struct iw_point *dwrq, char *extra)
 737{
 738	islpci_private *priv = netdev_priv(ndev);
 739	struct obj_ssid essid;
 740
 741	memset(essid.octets, 0, 33);
 742
 743	/* Check if we were asked for `any' */
 744	if (dwrq->flags && dwrq->length) {
 745		if (dwrq->length > 32)
 746			return -E2BIG;
 747		essid.length = dwrq->length;
 748		memcpy(essid.octets, extra, dwrq->length);
 749	} else
 750		essid.length = 0;
 751
 752	if (priv->iw_mode != IW_MODE_MONITOR)
 753		return mgt_set_request(priv, DOT11_OID_SSID, 0, &essid);
 754
 755	/* If in monitor mode, just save to mib */
 756	mgt_set(priv, DOT11_OID_SSID, &essid);
 757	return 0;
 758
 759}
 760
 761static int
 762prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
 763		  struct iw_point *dwrq, char *extra)
 764{
 765	islpci_private *priv = netdev_priv(ndev);
 766	struct obj_ssid *essid;
 767	union oid_res_t r;
 768	int rvalue;
 769
 770	rvalue = mgt_get_request(priv, DOT11_OID_SSID, 0, NULL, &r);
 771	essid = r.ptr;
 772
 773	if (essid->length) {
 774		dwrq->flags = 1;	/* set ESSID to ON for Wireless Extensions */
 775		/* if it is too big, trunk it */
 776		dwrq->length = min((u8)IW_ESSID_MAX_SIZE, essid->length);
 777	} else {
 778		dwrq->flags = 0;
 779		dwrq->length = 0;
 780	}
 781	essid->octets[dwrq->length] = '\0';
 782	memcpy(extra, essid->octets, dwrq->length);
 783	kfree(essid);
 784
 785	return rvalue;
 786}
 787
 788/* Provides no functionality, just completes the ioctl. In essence this is a
 789 * just a cosmetic ioctl.
 790 */
 791static int
 792prism54_set_nick(struct net_device *ndev, struct iw_request_info *info,
 793		 struct iw_point *dwrq, char *extra)
 794{
 795	islpci_private *priv = netdev_priv(ndev);
 796
 797	if (dwrq->length > IW_ESSID_MAX_SIZE)
 798		return -E2BIG;
 799
 800	down_write(&priv->mib_sem);
 801	memset(priv->nickname, 0, sizeof (priv->nickname));
 802	memcpy(priv->nickname, extra, dwrq->length);
 803	up_write(&priv->mib_sem);
 804
 805	return 0;
 806}
 807
 808static int
 809prism54_get_nick(struct net_device *ndev, struct iw_request_info *info,
 810		 struct iw_point *dwrq, char *extra)
 811{
 812	islpci_private *priv = netdev_priv(ndev);
 813
 814	dwrq->length = 0;
 815
 816	down_read(&priv->mib_sem);
 817	dwrq->length = strlen(priv->nickname);
 818	memcpy(extra, priv->nickname, dwrq->length);
 819	up_read(&priv->mib_sem);
 820
 821	return 0;
 822}
 823
 824/* Set the allowed Bitrates */
 825
 826static int
 827prism54_set_rate(struct net_device *ndev,
 828		 struct iw_request_info *info,
 829		 struct iw_param *vwrq, char *extra)
 830{
 831
 832	islpci_private *priv = netdev_priv(ndev);
 833	u32 rate, profile;
 834	char *data;
 835	int ret, i;
 836	union oid_res_t r;
 837
 838	if (vwrq->value == -1) {
 839		/* auto mode. No limit. */
 840		profile = 1;
 841		return mgt_set_request(priv, DOT11_OID_PROFILES, 0, &profile);
 842	}
 843
 844	ret = mgt_get_request(priv, DOT11_OID_SUPPORTEDRATES, 0, NULL, &r);
 845	if (ret) {
 846		kfree(r.ptr);
 847		return ret;
 848	}
 849
 850	rate = (u32) (vwrq->value / 500000);
 851	data = r.ptr;
 852	i = 0;
 853
 854	while (data[i]) {
 855		if (rate && (data[i] == rate)) {
 856			break;
 857		}
 858		if (vwrq->value == i) {
 859			break;
 860		}
 861		data[i] |= 0x80;
 862		i++;
 863	}
 864
 865	if (!data[i]) {
 866		kfree(r.ptr);
 867		return -EINVAL;
 868	}
 869
 870	data[i] |= 0x80;
 871	data[i + 1] = 0;
 872
 873	/* Now, check if we want a fixed or auto value */
 874	if (vwrq->fixed) {
 875		data[0] = data[i];
 876		data[1] = 0;
 877	}
 878
 879/*
 880	i = 0;
 881	printk("prism54 rate: ");
 882	while(data[i]) {
 883		printk("%u ", data[i]);
 884		i++;
 885	}
 886	printk("0\n");
 887*/
 888	profile = -1;
 889	ret = mgt_set_request(priv, DOT11_OID_PROFILES, 0, &profile);
 890	ret |= mgt_set_request(priv, DOT11_OID_EXTENDEDRATES, 0, data);
 891	ret |= mgt_set_request(priv, DOT11_OID_RATES, 0, data);
 892
 893	kfree(r.ptr);
 894
 895	return ret;
 896}
 897
 898/* Get the current bit rate */
 899static int
 900prism54_get_rate(struct net_device *ndev,
 901		 struct iw_request_info *info,
 902		 struct iw_param *vwrq, char *extra)
 903{
 904	islpci_private *priv = netdev_priv(ndev);
 905	int rvalue;
 906	char *data;
 907	union oid_res_t r;
 908
 909	/* Get the current bit rate */
 910	if ((rvalue = mgt_get_request(priv, GEN_OID_LINKSTATE, 0, NULL, &r)))
 911		return rvalue;
 912	vwrq->value = r.u * 500000;
 913
 914	/* request the device for the enabled rates */
 915	rvalue = mgt_get_request(priv, DOT11_OID_RATES, 0, NULL, &r);
 916	if (rvalue) {
 917		kfree(r.ptr);
 918		return rvalue;
 919	}
 920	data = r.ptr;
 921	vwrq->fixed = (data[0] != 0) && (data[1] == 0);
 922	kfree(r.ptr);
 923
 924	return 0;
 925}
 926
 927static int
 928prism54_set_rts(struct net_device *ndev, struct iw_request_info *info,
 929		struct iw_param *vwrq, char *extra)
 930{
 931	islpci_private *priv = netdev_priv(ndev);
 932
 933	return mgt_set_request(priv, DOT11_OID_RTSTHRESH, 0, &vwrq->value);
 934}
 935
 936static int
 937prism54_get_rts(struct net_device *ndev, struct iw_request_info *info,
 938		struct iw_param *vwrq, char *extra)
 939{
 940	islpci_private *priv = netdev_priv(ndev);
 941	union oid_res_t r;
 942	int rvalue;
 943
 944	/* get the rts threshold */
 945	rvalue = mgt_get_request(priv, DOT11_OID_RTSTHRESH, 0, NULL, &r);
 946	vwrq->value = r.u;
 947
 948	return rvalue;
 949}
 950
 951static int
 952prism54_set_frag(struct net_device *ndev, struct iw_request_info *info,
 953		 struct iw_param *vwrq, char *extra)
 954{
 955	islpci_private *priv = netdev_priv(ndev);
 956
 957	return mgt_set_request(priv, DOT11_OID_FRAGTHRESH, 0, &vwrq->value);
 958}
 959
 960static int
 961prism54_get_frag(struct net_device *ndev, struct iw_request_info *info,
 962		 struct iw_param *vwrq, char *extra)
 963{
 964	islpci_private *priv = netdev_priv(ndev);
 965	union oid_res_t r;
 966	int rvalue;
 967
 968	rvalue = mgt_get_request(priv, DOT11_OID_FRAGTHRESH, 0, NULL, &r);
 969	vwrq->value = r.u;
 970
 971	return rvalue;
 972}
 973
 974/* Here we have (min,max) = max retries for (small frames, big frames). Where
 975 * big frame <=>  bigger than the rts threshold
 976 * small frame <=>  smaller than the rts threshold
 977 * This is not really the behavior expected by the wireless tool but it seems
 978 * to be a common behavior in other drivers.
 979 */
 980
 981static int
 982prism54_set_retry(struct net_device *ndev, struct iw_request_info *info,
 983		  struct iw_param *vwrq, char *extra)
 984{
 985	islpci_private *priv = netdev_priv(ndev);
 986	u32 slimit = 0, llimit = 0;	/* short and long limit */
 987	u32 lifetime = 0;
 988	int rvalue = 0;
 989
 990	if (vwrq->disabled)
 991		/* we cannot disable this feature */
 992		return -EINVAL;
 993
 994	if (vwrq->flags & IW_RETRY_LIMIT) {
 995		if (vwrq->flags & IW_RETRY_SHORT)
 996			slimit = vwrq->value;
 997		else if (vwrq->flags & IW_RETRY_LONG)
 998			llimit = vwrq->value;
 999		else {
1000			/* we are asked to set both */
1001			slimit = vwrq->value;
1002			llimit = vwrq->value;
1003		}
1004	}
1005	if (vwrq->flags & IW_RETRY_LIFETIME)
1006		/* Wireless tools use us unit while the device uses 1024 us unit */
1007		lifetime = vwrq->value / 1024;
1008
1009	/* now set what is requested */
1010	if (slimit)
1011		rvalue =
1012		    mgt_set_request(priv, DOT11_OID_SHORTRETRIES, 0, &slimit);
1013	if (llimit)
1014		rvalue |=
1015		    mgt_set_request(priv, DOT11_OID_LONGRETRIES, 0, &llimit);
1016	if (lifetime)
1017		rvalue |=
1018		    mgt_set_request(priv, DOT11_OID_MAXTXLIFETIME, 0,
1019				    &lifetime);
1020	return rvalue;
1021}
1022
1023static int
1024prism54_get_retry(struct net_device *ndev, struct iw_request_info *info,
1025		  struct iw_param *vwrq, char *extra)
1026{
1027	islpci_private *priv = netdev_priv(ndev);
1028	union oid_res_t r;
1029	int rvalue = 0;
1030	vwrq->disabled = 0;	/* It cannot be disabled */
1031
1032	if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
1033		/* we are asked for the life time */
1034		rvalue =
1035		    mgt_get_request(priv, DOT11_OID_MAXTXLIFETIME, 0, NULL, &r);
1036		vwrq->value = r.u * 1024;
1037		vwrq->flags = IW_RETRY_LIFETIME;
1038	} else if ((vwrq->flags & IW_RETRY_LONG)) {
1039		/* we are asked for the long retry limit */
1040		rvalue |=
1041		    mgt_get_request(priv, DOT11_OID_LONGRETRIES, 0, NULL, &r);
1042		vwrq->value = r.u;
1043		vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1044	} else {
1045		/* default. get the  short retry limit */
1046		rvalue |=
1047		    mgt_get_request(priv, DOT11_OID_SHORTRETRIES, 0, NULL, &r);
1048		vwrq->value = r.u;
1049		vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1050	}
1051
1052	return rvalue;
1053}
1054
1055static int
1056prism54_set_encode(struct net_device *ndev, struct iw_request_info *info,
1057		   struct iw_point *dwrq, char *extra)
1058{
1059	islpci_private *priv = netdev_priv(ndev);
1060	int rvalue = 0, force = 0;
1061	int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
1062	union oid_res_t r;
1063
1064	/* with the new API, it's impossible to get a NULL pointer.
1065	 * New version of iwconfig set the IW_ENCODE_NOKEY flag
1066	 * when no key is given, but older versions don't. */
1067
1068	if (dwrq->length > 0) {
1069		/* we have a key to set */
1070		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1071		int current_index;
1072		struct obj_key key = { DOT11_PRIV_WEP, 0, "" };
1073
1074		/* get the current key index */
1075		rvalue = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
1076		current_index = r.u;
1077		/* Verify that the key is not marked as invalid */
1078		if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
1079			if (dwrq->length > KEY_SIZE_TKIP) {
1080				/* User-provided key data too big */
1081				return -EINVAL;
1082			}
1083			if (dwrq->length > KEY_SIZE_WEP104) {
1084				/* WPA-PSK TKIP */
1085				key.type = DOT11_PRIV_TKIP;
1086				key.length = KEY_SIZE_TKIP;
1087			} else if (dwrq->length > KEY_SIZE_WEP40) {
1088				/* WEP 104/128 */
1089				key.length = KEY_SIZE_WEP104;
1090			} else {
1091				/* WEP 40/64 */
1092				key.length = KEY_SIZE_WEP40;
1093			}
1094			memset(key.key, 0, sizeof (key.key));
1095			memcpy(key.key, extra, dwrq->length);
1096
1097			if ((index < 0) || (index > 3))
1098				/* no index provided use the current one */
1099				index = current_index;
1100
1101			/* now send the key to the card  */
1102			rvalue |=
1103			    mgt_set_request(priv, DOT11_OID_DEFKEYX, index,
1104					    &key);
1105		}
1106		/*
1107		 * If a valid key is set, encryption should be enabled
1108		 * (user may turn it off later).
1109		 * This is also how "iwconfig ethX key on" works
1110		 */
1111		if ((index == current_index) && (key.length > 0))
1112			force = 1;
1113	} else {
1114		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1115		if ((index >= 0) && (index <= 3)) {
1116			/* we want to set the key index */
1117			rvalue |=
1118			    mgt_set_request(priv, DOT11_OID_DEFKEYID, 0,
1119					    &index);
1120		} else {
1121			if (!(dwrq->flags & IW_ENCODE_MODE)) {
1122				/* we cannot do anything. Complain. */
1123				return -EINVAL;
1124			}
1125		}
1126	}
1127	/* now read the flags */
1128	if (dwrq->flags & IW_ENCODE_DISABLED) {
1129		/* Encoding disabled,
1130		 * authen = DOT11_AUTH_OS;
1131		 * invoke = 0;
1132		 * exunencrypt = 0; */
1133	}
1134	if (dwrq->flags & IW_ENCODE_OPEN)
1135		/* Encode but accept non-encoded packets. No auth */
1136		invoke = 1;
1137	if ((dwrq->flags & IW_ENCODE_RESTRICTED) || force) {
1138		/* Refuse non-encoded packets. Auth */
1139		authen = DOT11_AUTH_BOTH;
1140		invoke = 1;
1141		exunencrypt = 1;
1142	}
1143	/* do the change if requested  */
1144	if ((dwrq->flags & IW_ENCODE_MODE) || force) {
1145		rvalue |=
1146		    mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
1147		rvalue |=
1148		    mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &invoke);
1149		rvalue |=
1150		    mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
1151				    &exunencrypt);
1152	}
1153	return rvalue;
1154}
1155
1156static int
1157prism54_get_encode(struct net_device *ndev, struct iw_request_info *info,
1158		   struct iw_point *dwrq, char *extra)
1159{
1160	islpci_private *priv = netdev_priv(ndev);
1161	struct obj_key *key;
1162	u32 devindex, index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1163	u32 authen = 0, invoke = 0, exunencrypt = 0;
1164	int rvalue;
1165	union oid_res_t r;
1166
1167	/* first get the flags */
1168	rvalue = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
1169	authen = r.u;
1170	rvalue |= mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
1171	invoke = r.u;
1172	rvalue |= mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
1173	exunencrypt = r.u;
1174
1175	if (invoke && (authen == DOT11_AUTH_BOTH) && exunencrypt)
1176		dwrq->flags = IW_ENCODE_RESTRICTED;
1177	else if ((authen == DOT11_AUTH_OS) && !exunencrypt) {
1178		if (invoke)
1179			dwrq->flags = IW_ENCODE_OPEN;
1180		else
1181			dwrq->flags = IW_ENCODE_DISABLED;
1182	} else
1183		/* The card should not work in this state */
1184		dwrq->flags = 0;
1185
1186	/* get the current device key index */
1187	rvalue |= mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
1188	devindex = r.u;
1189	/* Now get the key, return it */
1190	if (index == -1 || index > 3)
1191		/* no index provided, use the current one */
1192		index = devindex;
1193	rvalue |= mgt_get_request(priv, DOT11_OID_DEFKEYX, index, NULL, &r);
1194	key = r.ptr;
1195	dwrq->length = key->length;
1196	memcpy(extra, key->key, dwrq->length);
1197	kfree(key);
1198	/* return the used key index */
1199	dwrq->flags |= devindex + 1;
1200
1201	return rvalue;
1202}
1203
1204static int
1205prism54_get_txpower(struct net_device *ndev, struct iw_request_info *info,
1206		    struct iw_param *vwrq, char *extra)
1207{
1208	islpci_private *priv = netdev_priv(ndev);
1209	union oid_res_t r;
1210	int rvalue;
1211
1212	rvalue = mgt_get_request(priv, OID_INL_OUTPUTPOWER, 0, NULL, &r);
1213	/* intersil firmware operates in 0.25 dBm (1/4 dBm) */
1214	vwrq->value = (s32) r.u / 4;
1215	vwrq->fixed = 1;
1216	/* radio is not turned of
1217	 * btw: how is possible to turn off only the radio
1218	 */
1219	vwrq->disabled = 0;
1220
1221	return rvalue;
1222}
1223
1224static int
1225prism54_set_txpower(struct net_device *ndev, struct iw_request_info *info,
1226		    struct iw_param *vwrq, char *extra)
1227{
1228	islpci_private *priv = netdev_priv(ndev);
1229	s32 u = vwrq->value;
1230
1231	/* intersil firmware operates in 0.25 dBm (1/4) */
1232	u *= 4;
1233	if (vwrq->disabled) {
1234		/* don't know how to disable radio */
1235		printk(KERN_DEBUG
1236		       "%s: %s() disabling radio is not yet supported.\n",
1237		       priv->ndev->name, __func__);
1238		return -ENOTSUPP;
1239	} else if (vwrq->fixed)
1240		/* currently only fixed value is supported */
1241		return mgt_set_request(priv, OID_INL_OUTPUTPOWER, 0, &u);
1242	else {
1243		printk(KERN_DEBUG
1244		       "%s: %s() auto power will be implemented later.\n",
1245		       priv->ndev->name, __func__);
1246		return -ENOTSUPP;
1247	}
1248}
1249
1250static int prism54_set_genie(struct net_device *ndev,
1251			     struct iw_request_info *info,
1252			     struct iw_point *data, char *extra)
1253{
1254	islpci_private *priv = netdev_priv(ndev);
1255	int alen, ret = 0;
1256	struct obj_attachment *attach;
1257
1258	if (data->length > MAX_WPA_IE_LEN ||
1259	    (data->length && extra == NULL))
1260		return -EINVAL;
1261
1262	memcpy(priv->wpa_ie, extra, data->length);
1263	priv->wpa_ie_len = data->length;
1264
1265	alen = sizeof(*attach) + priv->wpa_ie_len;
1266	attach = kzalloc(alen, GFP_KERNEL);
1267	if (attach == NULL)
1268		return -ENOMEM;
1269
1270#define WLAN_FC_TYPE_MGMT 0
1271#define WLAN_FC_STYPE_ASSOC_REQ 0
1272#define WLAN_FC_STYPE_REASSOC_REQ 2
1273
1274	/* Note: endianness is covered by mgt_set_varlen */
1275	attach->type = (WLAN_FC_TYPE_MGMT << 2) |
1276               (WLAN_FC_STYPE_ASSOC_REQ << 4);
1277	attach->id = -1;
1278	attach->size = priv->wpa_ie_len;
1279	memcpy(attach->data, extra, priv->wpa_ie_len);
1280
1281	ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach,
1282		priv->wpa_ie_len);
1283	if (ret == 0) {
1284		attach->type = (WLAN_FC_TYPE_MGMT << 2) |
1285			(WLAN_FC_STYPE_REASSOC_REQ << 4);
1286
1287		ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach,
1288			priv->wpa_ie_len);
1289		if (ret == 0)
1290			printk(KERN_DEBUG "%s: WPA IE Attachment was set\n",
1291				ndev->name);
1292	}
1293
1294	kfree(attach);
1295	return ret;
1296}
1297
1298
1299static int prism54_get_genie(struct net_device *ndev,
1300			     struct iw_request_info *info,
1301			     struct iw_point *data, char *extra)
1302{
1303	islpci_private *priv = netdev_priv(ndev);
1304	int len = priv->wpa_ie_len;
1305
1306	if (len <= 0) {
1307		data->length = 0;
1308		return 0;
1309	}
1310
1311	if (data->length < len)
1312		return -E2BIG;
1313
1314	data->length = len;
1315	memcpy(extra, priv->wpa_ie, len);
1316
1317	return 0;
1318}
1319
1320static int prism54_set_auth(struct net_device *ndev,
1321			       struct iw_request_info *info,
1322			       union iwreq_data *wrqu, char *extra)
1323{
1324	islpci_private *priv = netdev_priv(ndev);
1325	struct iw_param *param = &wrqu->param;
1326	u32 mlmelevel = 0, authen = 0, dot1x = 0;
1327	u32 exunencrypt = 0, privinvoked = 0, wpa = 0;
1328	u32 old_wpa;
1329	int ret = 0;
1330	union oid_res_t r;
1331
1332	if (islpci_get_state(priv) < PRV_STATE_INIT)
1333		return 0;
1334
1335	/* first get the flags */
1336	down_write(&priv->mib_sem);
1337	wpa = old_wpa = priv->wpa;
1338	up_write(&priv->mib_sem);
1339	ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
1340	authen = r.u;
1341	ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
1342	privinvoked = r.u;
1343	ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
1344	exunencrypt = r.u;
1345	ret = mgt_get_request(priv, DOT11_OID_DOT1XENABLE, 0, NULL, &r);
1346	dot1x = r.u;
1347	ret = mgt_get_request(priv, DOT11_OID_MLMEAUTOLEVEL, 0, NULL, &r);
1348	mlmelevel = r.u;
1349
1350	if (ret < 0)
1351		goto out;
1352
1353	switch (param->flags & IW_AUTH_INDEX) {
1354	case IW_AUTH_CIPHER_PAIRWISE:
1355	case IW_AUTH_CIPHER_GROUP:
1356	case IW_AUTH_KEY_MGMT:
1357		break;
1358
1359	case IW_AUTH_WPA_ENABLED:
1360		/* Do the same thing as IW_AUTH_WPA_VERSION */
1361		if (param->value) {
1362			wpa = 1;
1363			privinvoked = 1; /* For privacy invoked */
1364			exunencrypt = 1; /* Filter out all unencrypted frames */
1365			dot1x = 0x01; /* To enable eap filter */
1366			mlmelevel = DOT11_MLME_EXTENDED;
1367			authen = DOT11_AUTH_OS; /* Only WEP uses _SK and _BOTH */
1368		} else {
1369			wpa = 0;
1370			privinvoked = 0;
1371			exunencrypt = 0; /* Do not filter un-encrypted data */
1372			dot1x = 0;
1373			mlmelevel = DOT11_MLME_AUTO;
1374		}
1375		break;
1376
1377	case IW_AUTH_WPA_VERSION:
1378		if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
1379			wpa = 0;
1380			privinvoked = 0;
1381			exunencrypt = 0; /* Do not filter un-encrypted data */
1382			dot1x = 0;
1383			mlmelevel = DOT11_MLME_AUTO;
1384		} else {
1385			if (param->value & IW_AUTH_WPA_VERSION_WPA)
1386				wpa = 1;
1387			else if (param->value & IW_AUTH_WPA_VERSION_WPA2)
1388				wpa = 2;
1389			privinvoked = 1; /* For privacy invoked */
1390			exunencrypt = 1; /* Filter out all unencrypted frames */
1391			dot1x = 0x01; /* To enable eap filter */
1392			mlmelevel = DOT11_MLME_EXTENDED;
1393			authen = DOT11_AUTH_OS; /* Only WEP uses _SK and _BOTH */
1394		}
1395		break;
1396
1397	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1398		/* dot1x should be the opposite of RX_UNENCRYPTED_EAPOL;
1399		 * turn off dot1x when allowing receipt of unencrypted EAPOL
1400		 * frames, turn on dot1x when receipt should be disallowed
1401		 */
1402		dot1x = param->value ? 0 : 0x01;
1403		break;
1404
1405	case IW_AUTH_PRIVACY_INVOKED:
1406		privinvoked = param->value ? 1 : 0;
1407		break;
1408
1409	case IW_AUTH_DROP_UNENCRYPTED:
1410		exunencrypt = param->value ? 1 : 0;
1411		break;
1412
1413	case IW_AUTH_80211_AUTH_ALG:
1414		if (param->value & IW_AUTH_ALG_SHARED_KEY) {
1415			/* Only WEP uses _SK and _BOTH */
1416			if (wpa > 0) {
1417				ret = -EINVAL;
1418				goto out;
1419			}
1420			authen = DOT11_AUTH_SK;
1421		} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
1422			authen = DOT11_AUTH_OS;
1423		} else {
1424			ret = -EINVAL;
1425			goto out;
1426		}
1427		break;
1428
1429	default:
1430		return -EOPNOTSUPP;
1431	}
1432
1433	/* Set all the values */
1434	down_write(&priv->mib_sem);
1435	priv->wpa = wpa;
1436	up_write(&priv->mib_sem);
1437	mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
1438	mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &privinvoked);
1439	mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0, &exunencrypt);
1440	mgt_set_request(priv, DOT11_OID_DOT1XENABLE, 0, &dot1x);
1441	mgt_set_request(priv, DOT11_OID_MLMEAUTOLEVEL, 0, &mlmelevel);
1442
1443out:
1444	return ret;
1445}
1446
1447static int prism54_get_auth(struct net_device *ndev,
1448			    struct iw_request_info *info,
1449			    union iwreq_data *wrqu, char *extra)
1450{
1451	islpci_private *priv = netdev_priv(ndev);
1452	struct iw_param *param = &wrqu->param;
1453	u32 wpa = 0;
1454	int ret = 0;
1455	union oid_res_t r;
1456
1457	if (islpci_get_state(priv) < PRV_STATE_INIT)
1458		return 0;
1459
1460	/* first get the flags */
1461	down_write(&priv->mib_sem);
1462	wpa = priv->wpa;
1463	up_write(&priv->mib_sem);
1464
1465	switch (param->flags & IW_AUTH_INDEX) {
1466	case IW_AUTH_CIPHER_PAIRWISE:
1467	case IW_AUTH_CIPHER_GROUP:
1468	case IW_AUTH_KEY_MGMT:
1469		/*
1470		 * wpa_supplicant will control these internally
1471		 */
1472		ret = -EOPNOTSUPP;
1473		break;
1474
1475	case IW_AUTH_WPA_VERSION:
1476		switch (wpa) {
1477		case 1:
1478			param->value = IW_AUTH_WPA_VERSION_WPA;
1479			break;
1480		case 2:
1481			param->value = IW_AUTH_WPA_VERSION_WPA2;
1482			break;
1483		case 0:
1484		default:
1485			param->value = IW_AUTH_WPA_VERSION_DISABLED;
1486			break;
1487		}
1488		break;
1489
1490	case IW_AUTH_DROP_UNENCRYPTED:
1491		ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
1492		if (ret >= 0)
1493			param->value = r.u > 0 ? 1 : 0;
1494		break;
1495
1496	case IW_AUTH_80211_AUTH_ALG:
1497		ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
1498		if (ret >= 0) {
1499			switch (r.u) {
1500			case DOT11_AUTH_OS:
1501				param->value = IW_AUTH_ALG_OPEN_SYSTEM;
1502				break;
1503			case DOT11_AUTH_BOTH:
1504			case DOT11_AUTH_SK:
1505				param->value = IW_AUTH_ALG_SHARED_KEY;
1506				break;
1507			case DOT11_AUTH_NONE:
1508			default:
1509				param->value = 0;
1510				break;
1511			}
1512		}
1513		break;
1514
1515	case IW_AUTH_WPA_ENABLED:
1516		param->value = wpa > 0 ? 1 : 0;
1517		break;
1518
1519	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1520		ret = mgt_get_request(priv, DOT11_OID_DOT1XENABLE, 0, NULL, &r);
1521		if (ret >= 0)
1522			param->value = r.u > 0 ? 1 : 0;
1523		break;
1524
1525	case IW_AUTH_PRIVACY_INVOKED:
1526		ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
1527		if (ret >= 0)
1528			param->value = r.u > 0 ? 1 : 0;
1529		break;
1530
1531	default:
1532		return -EOPNOTSUPP;
1533	}
1534	return ret;
1535}
1536
1537static int prism54_set_encodeext(struct net_device *ndev,
1538				 struct iw_request_info *info,
1539				 union iwreq_data *wrqu,
1540				 char *extra)
1541{
1542	islpci_private *priv = netdev_priv(ndev);
1543	struct iw_point *encoding = &wrqu->encoding;
1544	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1545	int idx, alg = ext->alg, set_key = 1;
1546	union oid_res_t r;
1547	int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
1548	int ret = 0;
1549
1550	if (islpci_get_state(priv) < PRV_STATE_INIT)
1551		return 0;
1552
1553	/* Determine and validate the key index */
1554	idx = (encoding->flags & IW_ENCODE_INDEX) - 1;
1555	if (idx) {
1556		if (idx < 0 || idx > 3)
1557			return -EINVAL;
1558	} else {
1559		ret = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
1560		if (ret < 0)
1561			goto out;
1562		idx = r.u;
1563	}
1564
1565	if (encoding->flags & IW_ENCODE_DISABLED)
1566		alg = IW_ENCODE_ALG_NONE;
1567
1568	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
1569		/* Only set transmit key index here, actual
1570		 * key is set below if needed.
1571		 */
1572		ret = mgt_set_request(priv, DOT11_OID_DEFKEYID, 0, &idx);
1573		set_key = ext->key_len > 0 ? 1 : 0;
1574	}
1575
1576	if (set_key) {
1577		struct obj_key key = { DOT11_PRIV_WEP, 0, "" };
1578		switch (alg) {
1579		case IW_ENCODE_ALG_NONE:
1580			break;
1581		case IW_ENCODE_ALG_WEP:
1582			if (ext->key_len > KEY_SIZE_WEP104) {
1583				ret = -EINVAL;
1584				goto out;
1585			}
1586			if (ext->key_len > KEY_SIZE_WEP40)
1587				key.length = KEY_SIZE_WEP104;
1588			else
1589				key.length = KEY_SIZE_WEP40;
1590			break;
1591		case IW_ENCODE_ALG_TKIP:
1592			if (ext->key_len > KEY_SIZE_TKIP) {
1593				ret = -EINVAL;
1594				goto out;
1595			}
1596			key.type = DOT11_PRIV_TKIP;
1597			key.length = KEY_SIZE_TKIP;
1598			break;
1599		default:
1600			return -EINVAL;
1601		}
1602
1603		if (key.length) {
1604			memset(key.key, 0, sizeof(key.key));
1605			memcpy(key.key, ext->key, ext->key_len);
1606			ret = mgt_set_request(priv, DOT11_OID_DEFKEYX, idx,
1607					    &key);
1608			if (ret < 0)
1609				goto out;
1610		}
1611	}
1612
1613	/* Read the flags */
1614	if (encoding->flags & IW_ENCODE_DISABLED) {
1615		/* Encoding disabled,
1616		 * authen = DOT11_AUTH_OS;
1617		 * invoke = 0;
1618		 * exunencrypt = 0; */
1619	}
1620	if (encoding->flags & IW_ENCODE_OPEN) {
1621		/* Encode but accept non-encoded packets. No auth */
1622		invoke = 1;
1623	}
1624	if (encoding->flags & IW_ENCODE_RESTRICTED) {
1625		/* Refuse non-encoded packets. Auth */
1626		authen = DOT11_AUTH_BOTH;
1627		invoke = 1;
1628		exunencrypt = 1;
1629	}
1630
1631	/* do the change if requested  */
1632	if (encoding->flags & IW_ENCODE_MODE) {
1633		ret = mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0,
1634				      &authen);
1635		ret = mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0,
1636				      &invoke);
1637		ret = mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
1638				      &exunencrypt);
1639	}
1640
1641out:
1642	return ret;
1643}
1644
1645
1646static int prism54_get_encodeext(struct net_device *ndev,
1647				 struct iw_request_info *info,
1648				 union iwreq_data *wrqu,
1649				 char *extra)
1650{
1651	islpci_private *priv = netdev_priv(ndev);
1652	struct iw_point *encoding = &wrqu->encoding;
1653	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1654	int idx, max_key_len;
1655	union oid_res_t r;
1656	int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0, wpa = 0;
1657	int ret = 0;
1658
1659	if (islpci_get_state(priv) < PRV_STATE_INIT)
1660		return 0;
1661
1662	/* first get the flags */
1663	ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
1664	authen = r.u;
1665	ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
1666	invoke = r.u;
1667	ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
1668	exunencrypt = r.u;
1669	if (ret < 0)
1670		goto out;
1671
1672	max_key_len = encoding->length - sizeof(*ext);
1673	if (max_key_len < 0)
1674		return -EINVAL;
1675
1676	idx = (encoding->flags & IW_ENCODE_INDEX) - 1;
1677	if (idx) {
1678		if (idx < 0 || idx > 3)
1679			return -EINVAL;
1680	} else {
1681		ret = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
1682		if (ret < 0)
1683			goto out;
1684		idx = r.u;
1685	}
1686
1687	encoding->flags = idx + 1;
1688	memset(ext, 0, sizeof(*ext));
1689
1690	switch (authen) {
1691	case DOT11_AUTH_BOTH:
1692	case DOT11_AUTH_SK:
1693		wrqu->encoding.flags |= IW_ENCODE_RESTRICTED;
1694	case DOT11_AUTH_OS:
1695	default:
1696		wrqu->encoding.flags |= IW_ENCODE_OPEN;
1697		break;
1698	}
1699
1700	down_write(&priv->mib_sem);
1701	wpa = priv->wpa;
1702	up_write(&priv->mib_sem);
1703
1704	if (authen == DOT11_AUTH_OS && !exunencrypt && !invoke && !wpa) {
1705		/* No encryption */
1706		ext->alg = IW_ENCODE_ALG_NONE;
1707		ext->key_len = 0;
1708		wrqu->encoding.flags |= IW_ENCODE_DISABLED;
1709	} else {
1710		struct obj_key *key;
1711
1712		ret = mgt_get_request(priv, DOT11_OID_DEFKEYX, idx, NULL, &r);
1713		if (ret < 0)
1714			goto out;
1715		key = r.ptr;
1716		if (max_key_len < key->length) {
1717			ret = -E2BIG;
1718			goto out;
1719		}
1720		memcpy(ext->key, key->key, key->length);
1721		ext->key_len = key->length;
1722
1723		switch (key->type) {
1724		case DOT11_PRIV_TKIP:
1725			ext->alg = IW_ENCODE_ALG_TKIP;
1726			break;
1727		default:
1728		case DOT11_PRIV_WEP:
1729			ext->alg = IW_ENCODE_ALG_WEP;
1730			break;
1731		}
1732		wrqu->encoding.flags |= IW_ENCODE_ENABLED;
1733	}
1734
1735out:
1736	return ret;
1737}
1738
1739
1740static int
1741prism54_reset(struct net_device *ndev, struct iw_request_info *info,
1742	      __u32 * uwrq, char *extra)
1743{
1744	islpci_reset(netdev_priv(ndev), 0);
1745
1746	return 0;
1747}
1748
1749static int
1750prism54_get_oid(struct net_device *ndev, struct iw_request_info *info,
1751		struct iw_point *dwrq, char *extra)
1752{
1753	union oid_res_t r;
1754	int rvalue;
1755	enum oid_num_t n = dwrq->flags;
1756
1757	rvalue = mgt_get_request(netdev_priv(ndev), n, 0, NULL, &r);
1758	dwrq->length = mgt_response_to_str(n, &r, extra);
1759	if ((isl_oid[n].flags & OID_FLAG_TYPE) != OID_TYPE_U32)
1760		kfree(r.ptr);
1761	return rvalue;
1762}
1763
1764static int
1765prism54_set_u32(struct net_device *ndev, struct iw_request_info *info,
1766		__u32 * uwrq, char *extra)
1767{
1768	u32 oid = uwrq[0], u = uwrq[1];
1769
1770	return mgt_set_request(netdev_priv(ndev), oid, 0, &u);
1771}
1772
1773static int
1774prism54_set_raw(struct net_device *ndev, struct iw_request_info *info,
1775		struct iw_point *dwrq, char *extra)
1776{
1777	u32 oid = dwrq->flags;
1778
1779	return mgt_set_request(netdev_priv(ndev), oid, 0, extra);
1780}
1781
1782void
1783prism54_acl_init(struct islpci_acl *acl)
1784{
1785	mutex_init(&acl->lock);
1786	INIT_LIST_HEAD(&acl->mac_list);
1787	acl->size = 0;
1788	acl->policy = MAC_POLICY_OPEN;
1789}
1790
1791static void
1792prism54_clear_mac(struct islpci_acl *acl)
1793{
1794	struct list_head *ptr, *next;
1795	struct mac_entry *entry;
1796
1797	mutex_lock(&acl->lock);
1798
1799	if (acl->size == 0) {
1800		mutex_unlock(&acl->lock);
1801		return;
1802	}
1803
1804	for (ptr = acl->mac_list.next, next = ptr->next;
1805	     ptr != &acl->mac_list; ptr = next, next = ptr->next) {
1806		entry = list_entry(ptr, struct mac_entry, _list);
1807		list_del(ptr);
1808		kfree(entry);
1809	}
1810	acl->size = 0;
1811	mutex_unlock(&acl->lock);
1812}
1813
1814void
1815prism54_acl_clean(struct islpci_acl *acl)
1816{
1817	prism54_clear_mac(acl);
1818}
1819
1820static int
1821prism54_add_mac(struct net_device *ndev, struct iw_request_info *info,
1822		struct sockaddr *awrq, char *extra)
1823{
1824	islpci_private *priv = netdev_priv(ndev);
1825	struct islpci_acl *acl = &priv->acl;
1826	struct mac_entry *entry;
1827	struct sockaddr *addr = (struct sockaddr *) extra;
1828
1829	if (addr->sa_family != ARPHRD_ETHER)
1830		return -EOPNOTSUPP;
1831
1832	entry = kmalloc(sizeof (struct mac_entry), GFP_KERNEL);
1833	if (entry == NULL)
1834		return -ENOMEM;
1835
1836	memcpy(entry->addr, addr->sa_data, ETH_ALEN);
1837
1838	if (mutex_lock_interruptible(&acl->lock)) {
1839		kfree(entry);
1840		return -ERESTARTSYS;
1841	}
1842	list_add_tail(&entry->_list, &acl->mac_list);
1843	acl->size++;
1844	mutex_unlock(&acl->lock);
1845
1846	return 0;
1847}
1848
1849static int
1850prism54_del_mac(struct net_device *ndev, struct iw_request_info *info,
1851		struct sockaddr *awrq, char *extra)
1852{
1853	islpci_private *priv = netdev_priv(ndev);
1854	struct islpci_acl *acl = &priv->acl;
1855	struct mac_entry *entry;
1856	struct sockaddr *addr = (struct sockaddr *) extra;
1857
1858	if (addr->sa_family != ARPHRD_ETHER)
1859		return -EOPNOTSUPP;
1860
1861	if (mutex_lock_interruptible(&acl->lock))
1862		return -ERESTARTSYS;
1863	list_for_each_entry(entry, &acl->mac_list, _list) {
1864		if (memcmp(entry->addr, addr->sa_data, ETH_ALEN) == 0) {
1865			list_del(&entry->_list);
1866			acl->size--;
1867			kfree(entry);
1868			mutex_unlock(&acl->lock);
1869			return 0;
1870		}
1871	}
1872	mutex_unlock(&acl->lock);
1873	return -EINVAL;
1874}
1875
1876static int
1877prism54_get_mac(struct net_device *ndev, struct iw_request_info *info,
1878		struct iw_point *dwrq, char *extra)
1879{
1880	islpci_private *priv = netdev_priv(ndev);
1881	struct islpci_acl *acl = &priv->acl;
1882	struct mac_entry *entry;
1883	struct sockaddr *dst = (struct sockaddr *) extra;
1884
1885	dwrq->length = 0;
1886
1887	if (mutex_lock_interruptible(&acl->lock))
1888		return -ERESTARTSYS;
1889
1890	list_for_each_entry(entry, &acl->mac_list, _list) {
1891		memcpy(dst->sa_data, entry->addr, ETH_ALEN);
1892		dst->sa_family = ARPHRD_ETHER;
1893		dwrq->length++;
1894		dst++;
1895	}
1896	mutex_unlock(&acl->lock);
1897	return 0;
1898}
1899
1900/* Setting policy also clears the MAC acl, even if we don't change the default
1901 * policy
1902 */
1903
1904static int
1905prism54_set_policy(struct net_device *ndev, struct iw_request_info *info,
1906		   __u32 * uwrq, char *extra)
1907{
1908	islpci_private *priv = netdev_priv(ndev);
1909	struct islpci_acl *acl = &priv->acl;
1910	u32 mlmeautolevel;
1911
1912	prism54_clear_mac(acl);
1913
1914	if ((*uwrq < MAC_POLICY_OPEN) || (*uwrq > MAC_POLICY_REJECT))
1915		return -EINVAL;
1916
1917	down_write(&priv->mib_sem);
1918
1919	acl->policy = *uwrq;
1920
1921	/* the ACL code needs an intermediate mlmeautolevel */
1922	if ((priv->iw_mode == IW_MODE_MASTER) &&
1923	    (acl->policy != MAC_POLICY_OPEN))
1924		mlmeautolevel = DOT11_MLME_INTERMEDIATE;
1925	else
1926		mlmeautolevel = CARD_DEFAULT_MLME_MODE;
1927	if (priv->wpa)
1928		mlmeautolevel = DOT11_MLME_EXTENDED;
1929	mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlmeautolevel);
1930	/* restart the card with our new policy */
1931	if (mgt_commit(

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