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Merge branch 'fix/asoc' into for-linus
[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / libertas / cfg.c
CommitLineData
ff9fc791
HS		 1/*
2 * Implement cfg80211 ("iw") support.
3 *
4 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
5 * Holger Schurig <hs4233@mail.mn-solutions.de>
6 *
7 */
8
241a6a54
AM		 9#include <linux/sched.h>
10#include <linux/wait.h>
5a0e3ad6 11#include <linux/slab.h>
a9fda88b 12#include <linux/sched.h>
b68b3c4d 13#include <linux/wait.h>
1047d5ed 14#include <linux/ieee80211.h>
ff9fc791 15#include <net/cfg80211.h>
e86dc1ca 16#include <asm/unaligned.h>
ff9fc791 17
e86dc1ca 18#include "decl.h"
ff9fc791
HS		 19#include "cfg.h"
20#include "cmd.h"
21
22
23#define CHAN2G(_channel, _freq, _flags) { \
24 .band = IEEE80211_BAND_2GHZ, \
25 .center_freq = (_freq), \
26 .hw_value = (_channel), \
27 .flags = (_flags), \
28 .max_antenna_gain = 0, \
29 .max_power = 30, \
30}
31
32static struct ieee80211_channel lbs_2ghz_channels[] = {
33 CHAN2G(1, 2412, 0),
34 CHAN2G(2, 2417, 0),
35 CHAN2G(3, 2422, 0),
36 CHAN2G(4, 2427, 0),
37 CHAN2G(5, 2432, 0),
38 CHAN2G(6, 2437, 0),
39 CHAN2G(7, 2442, 0),
40 CHAN2G(8, 2447, 0),
41 CHAN2G(9, 2452, 0),
42 CHAN2G(10, 2457, 0),
43 CHAN2G(11, 2462, 0),
44 CHAN2G(12, 2467, 0),
45 CHAN2G(13, 2472, 0),
46 CHAN2G(14, 2484, 0),
47};
48
e86dc1ca
KD		 49#define RATETAB_ENT(_rate, _hw_value, _flags) { \
50 .bitrate = (_rate), \
51 .hw_value = (_hw_value), \
52 .flags = (_flags), \
ff9fc791
HS		 53}
54
55
e86dc1ca 56/* Table 6 in section 3.2.1.1 */
ff9fc791 57static struct ieee80211_rate lbs_rates[] = {
e86dc1ca
KD		 58 RATETAB_ENT(10, 0, 0),
59 RATETAB_ENT(20, 1, 0),
60 RATETAB_ENT(55, 2, 0),
61 RATETAB_ENT(110, 3, 0),
62 RATETAB_ENT(60, 9, 0),
63 RATETAB_ENT(90, 6, 0),
64 RATETAB_ENT(120, 7, 0),
65 RATETAB_ENT(180, 8, 0),
66 RATETAB_ENT(240, 9, 0),
67 RATETAB_ENT(360, 10, 0),
68 RATETAB_ENT(480, 11, 0),
69 RATETAB_ENT(540, 12, 0),
ff9fc791
HS		 70};
71
72static struct ieee80211_supported_band lbs_band_2ghz = {
73 .channels = lbs_2ghz_channels,
74 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
75 .bitrates = lbs_rates,
76 .n_bitrates = ARRAY_SIZE(lbs_rates),
77};
78
79
80static const u32 cipher_suites[] = {
81 WLAN_CIPHER_SUITE_WEP40,
82 WLAN_CIPHER_SUITE_WEP104,
83 WLAN_CIPHER_SUITE_TKIP,
84 WLAN_CIPHER_SUITE_CCMP,
85};
86
e86dc1ca
KD		 87/* Time to stay on the channel */
88#define LBS_DWELL_PASSIVE 100
89#define LBS_DWELL_ACTIVE 40
ff9fc791
HS		 90
91
e86dc1ca
KD		 92/***************************************************************************
93 * Misc utility functions
94 *
95 * TLVs are Marvell specific. They are very similar to IEs, they have the
96 * same structure: type, length, data*. The only difference: for IEs, the
97 * type and length are u8, but for TLVs they're __le16.
98 */
99
100/*
101 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
102 * in the firmware spec
103 */
104static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
105{
106 int ret = -ENOTSUPP;
107
108 switch (auth_type) {
109 case NL80211_AUTHTYPE_OPEN_SYSTEM:
110 case NL80211_AUTHTYPE_SHARED_KEY:
111 ret = auth_type;
112 break;
113 case NL80211_AUTHTYPE_AUTOMATIC:
114 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
115 break;
116 case NL80211_AUTHTYPE_NETWORK_EAP:
117 ret = 0x80;
118 break;
119 default:
120 /* silence compiler */
121 break;
122 }
123 return ret;
124}
125
126
127/* Various firmware commands need the list of supported rates, but with
128 the hight-bit set for basic rates */
129static int lbs_add_rates(u8 *rates)
130{
131 size_t i;
132
133 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
134 u8 rate = lbs_rates[i].bitrate / 5;
135 if (rate == 0x02 || rate == 0x04 ||
136 rate == 0x0b || rate == 0x16)
137 rate |= 0x80;
138 rates[i] = rate;
139 }
140 return ARRAY_SIZE(lbs_rates);
141}
142
143
144/***************************************************************************
145 * TLV utility functions
146 *
147 * TLVs are Marvell specific. They are very similar to IEs, they have the
148 * same structure: type, length, data*. The only difference: for IEs, the
149 * type and length are u8, but for TLVs they're __le16.
150 */
151
152
153/*
154 * Add ssid TLV
155 */
156#define LBS_MAX_SSID_TLV_SIZE \
157 (sizeof(struct mrvl_ie_header) \
158 + IEEE80211_MAX_SSID_LEN)
159
160static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
161{
162 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
163
164 /*
165 * TLV-ID SSID 00 00
166 * length 06 00
167 * ssid 4d 4e 54 45 53 54
168 */
169 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
170 ssid_tlv->header.len = cpu_to_le16(ssid_len);
171 memcpy(ssid_tlv->ssid, ssid, ssid_len);
172 return sizeof(ssid_tlv->header) + ssid_len;
173}
174
175
176/*
177 * Add channel list TLV (section 8.4.2)
178 *
179 * Actual channel data comes from priv->wdev->wiphy->channels.
180 */
181#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
182 (sizeof(struct mrvl_ie_header) \
183 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
184
185static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
186 int last_channel, int active_scan)
187{
188 int chanscanparamsize = sizeof(struct chanscanparamset) *
189 (last_channel - priv->scan_channel);
190
191 struct mrvl_ie_header *header = (void *) tlv;
192
193 /*
194 * TLV-ID CHANLIST 01 01
195 * length 0e 00
196 * channel 00 01 00 00 00 64 00
197 * radio type 00
198 * channel 01
199 * scan type 00
200 * min scan time 00 00
201 * max scan time 64 00
202 * channel 2 00 02 00 00 00 64 00
203 *
204 */
205
206 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
207 header->len = cpu_to_le16(chanscanparamsize);
208 tlv += sizeof(struct mrvl_ie_header);
209
210 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
211 last_channel); */
212 memset(tlv, 0, chanscanparamsize);
213
214 while (priv->scan_channel < last_channel) {
215 struct chanscanparamset *param = (void *) tlv;
216
217 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
218 param->channumber =
219 priv->scan_req->channels[priv->scan_channel]->hw_value;
220 if (active_scan) {
221 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
222 } else {
223 param->chanscanmode.passivescan = 1;
224 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
225 }
226 tlv += sizeof(struct chanscanparamset);
227 priv->scan_channel++;
228 }
229 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
230}
231
232
233/*
234 * Add rates TLV
235 *
236 * The rates are in lbs_bg_rates[], but for the 802.11b
237 * rates the high bit is set. We add this TLV only because
238 * there's a firmware which otherwise doesn't report all
239 * APs in range.
240 */
241#define LBS_MAX_RATES_TLV_SIZE \
242 (sizeof(struct mrvl_ie_header) \
243 + (ARRAY_SIZE(lbs_rates)))
244
245/* Adds a TLV with all rates the hardware supports */
246static int lbs_add_supported_rates_tlv(u8 *tlv)
247{
248 size_t i;
249 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
250
251 /*
252 * TLV-ID RATES 01 00
253 * length 0e 00
254 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
255 */
256 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
257 tlv += sizeof(rate_tlv->header);
258 i = lbs_add_rates(tlv);
259 tlv += i;
260 rate_tlv->header.len = cpu_to_le16(i);
261 return sizeof(rate_tlv->header) + i;
262}
263
19757539
DW		 264/* Add common rates from a TLV and return the new end of the TLV */
265static u8 *
266add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
267{
268 int hw, ap, ap_max = ie[1];
269 u8 hw_rate;
270
271 /* Advance past IE header */
272 ie += 2;
273
274 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
275
276 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
277 hw_rate = lbs_rates[hw].bitrate / 5;
278 for (ap = 0; ap < ap_max; ap++) {
279 if (hw_rate == (ie[ap] & 0x7f)) {
280 *tlv++ = ie[ap];
281 *nrates = *nrates + 1;
282 }
283 }
284 }
285 return tlv;
286}
e86dc1ca
KD		 287
288/*
289 * Adds a TLV with all rates the hardware *and* BSS supports.
290 */
291static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
292{
293 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
19757539
DW		 294 const u8 *rates_eid, *ext_rates_eid;
295 int n = 0;
296
297 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
298 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
e86dc1ca
KD		 299
300 /*
301 * 01 00 TLV_TYPE_RATES
302 * 04 00 len
303 * 82 84 8b 96 rates
304 */
305 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
306 tlv += sizeof(rate_tlv->header);
307
19757539
DW		 308 /* Add basic rates */
309 if (rates_eid) {
310 tlv = add_ie_rates(tlv, rates_eid, &n);
311
312 /* Add extended rates, if any */
313 if (ext_rates_eid)
314 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
315 } else {
316 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
e86dc1ca
KD		 317 /* Fallback: add basic 802.11b rates */
318 *tlv++ = 0x82;
319 *tlv++ = 0x84;
320 *tlv++ = 0x8b;
321 *tlv++ = 0x96;
322 n = 4;
e86dc1ca
KD		 323 }
324
325 rate_tlv->header.len = cpu_to_le16(n);
326 return sizeof(rate_tlv->header) + n;
327}
328
329
330/*
331 * Add auth type TLV.
332 *
333 * This is only needed for newer firmware (V9 and up).
334 */
335#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
336 sizeof(struct mrvl_ie_auth_type)
337
338static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
339{
340 struct mrvl_ie_auth_type *auth = (void *) tlv;
341
342 /*
343 * 1f 01 TLV_TYPE_AUTH_TYPE
344 * 01 00 len
345 * 01 auth type
346 */
347 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
348 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
349 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
350 return sizeof(*auth);
351}
352
353
354/*
355 * Add channel (phy ds) TLV
356 */
357#define LBS_MAX_CHANNEL_TLV_SIZE \
358 sizeof(struct mrvl_ie_header)
359
360static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
361{
362 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
363
364 /*
365 * 03 00 TLV_TYPE_PHY_DS
366 * 01 00 len
367 * 06 channel
368 */
369 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
370 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
371 ds->channel = channel;
372 return sizeof(*ds);
373}
374
375
376/*
377 * Add (empty) CF param TLV of the form:
378 */
379#define LBS_MAX_CF_PARAM_TLV_SIZE \
380 sizeof(struct mrvl_ie_header)
381
382static int lbs_add_cf_param_tlv(u8 *tlv)
383{
384 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
385
386 /*
387 * 04 00 TLV_TYPE_CF
388 * 06 00 len
389 * 00 cfpcnt
390 * 00 cfpperiod
391 * 00 00 cfpmaxduration
392 * 00 00 cfpdurationremaining
393 */
394 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
395 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
396 return sizeof(*cf);
397}
398
399/*
400 * Add WPA TLV
401 */
402#define LBS_MAX_WPA_TLV_SIZE \
403 (sizeof(struct mrvl_ie_header) \
404 + 128 /* TODO: I guessed the size */)
405
406static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
407{
408 size_t tlv_len;
409
410 /*
411 * We need just convert an IE to an TLV. IEs use u8 for the header,
412 * u8 type
413 * u8 len
414 * u8[] data
415 * but TLVs use __le16 instead:
416 * __le16 type
417 * __le16 len
418 * u8[] data
419 */
420 *tlv++ = *ie++;
421 *tlv++ = 0;
422 tlv_len = *tlv++ = *ie++;
423 *tlv++ = 0;
424 while (tlv_len--)
425 *tlv++ = *ie++;
426 /* the TLV is two bytes larger than the IE */
427 return ie_len + 2;
428}
429
430/***************************************************************************
431 * Set Channel
432 */
433
ff9fc791 434static int lbs_cfg_set_channel(struct wiphy *wiphy,
f444de05 435 struct net_device *netdev,
e86dc1ca 436 struct ieee80211_channel *channel,
ff9fc791
HS		 437 enum nl80211_channel_type channel_type)
438{
439 struct lbs_private *priv = wiphy_priv(wiphy);
e86dc1ca
KD		 440 int ret = -ENOTSUPP;
441
442 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
443 channel->center_freq, channel_type);
444
445 if (channel_type != NL80211_CHAN_NO_HT)
446 goto out;
447
448 ret = lbs_set_channel(priv, channel->hw_value);
449
450 out:
451 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
452 return ret;
453}
454
455
456
457/***************************************************************************
458 * Scanning
459 */
460
461/*
462 * When scanning, the firmware doesn't send a nul packet with the power-safe
463 * bit to the AP. So we cannot stay away from our current channel too long,
464 * otherwise we loose data. So take a "nap" while scanning every other
465 * while.
466 */
467#define LBS_SCAN_BEFORE_NAP 4
468
469
470/*
471 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
472 * which isn't really an RSSI, as it becomes larger when moving away from
473 * the AP. Anyway, we need to convert that into mBm.
474 */
475#define LBS_SCAN_RSSI_TO_MBM(rssi) \
476 ((-(int)rssi + 3)*100)
477
478static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
479 struct cmd_header *resp)
480{
481 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
482 int bsssize;
483 const u8 *pos;
e86dc1ca
KD		 484 const u8 *tsfdesc;
485 int tsfsize;
486 int i;
487 int ret = -EILSEQ;
488
489 lbs_deb_enter(LBS_DEB_CFG80211);
490
491 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
aebb628f
DW		 492
493 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
65a602dd 494 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
aebb628f 495
65a602dd 496 if (scanresp->nr_sets == 0) {
aebb628f
DW		 497 ret = 0;
498 goto done;
499 }
e86dc1ca
KD		 500
501 /*
502 * The general layout of the scan response is described in chapter
503 * 5.7.1. Basically we have a common part, then any number of BSS
504 * descriptor sections. Finally we have section with the same number
505 * of TSFs.
506 *
507 * cmd_ds_802_11_scan_rsp
508 * cmd_header
509 * pos_size
510 * nr_sets
511 * bssdesc 1
512 * bssid
513 * rssi
514 * timestamp
515 * intvl
516 * capa
517 * IEs
518 * bssdesc 2
519 * bssdesc n
520 * MrvlIEtypes_TsfFimestamp_t
521 * TSF for BSS 1
522 * TSF for BSS 2
523 * TSF for BSS n
524 */
525
526 pos = scanresp->bssdesc_and_tlvbuffer;
527
4083858c
DW		 528 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
529 scanresp->bssdescriptsize);
530
e86dc1ca
KD		 531 tsfdesc = pos + bsssize;
532 tsfsize = 4 + 8 * scanresp->nr_sets;
4083858c 533 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
e86dc1ca
KD		 534
535 /* Validity check: we expect a Marvell-Local TLV */
536 i = get_unaligned_le16(tsfdesc);
537 tsfdesc += 2;
4083858c
DW		 538 if (i != TLV_TYPE_TSFTIMESTAMP) {
539 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
e86dc1ca 540 goto done;
4083858c
DW		 541 }
542
e86dc1ca
KD		 543 /* Validity check: the TLV holds TSF values with 8 bytes each, so
544 * the size in the TLV must match the nr_sets value */
545 i = get_unaligned_le16(tsfdesc);
546 tsfdesc += 2;
4083858c
DW		 547 if (i / 8 != scanresp->nr_sets) {
548 lbs_deb_scan("scan response: invalid number of TSF timestamp "
549 "sets (expected %d got %d)\n", scanresp->nr_sets,
550 i / 8);
e86dc1ca 551 goto done;
4083858c 552 }
e86dc1ca
KD		 553
554 for (i = 0; i < scanresp->nr_sets; i++) {
555 const u8 *bssid;
556 const u8 *ie;
557 int left;
558 int ielen;
559 int rssi;
560 u16 intvl;
561 u16 capa;
562 int chan_no = -1;
563 const u8 *ssid = NULL;
564 u8 ssid_len = 0;
565 DECLARE_SSID_BUF(ssid_buf);
566
567 int len = get_unaligned_le16(pos);
568 pos += 2;
569
570 /* BSSID */
571 bssid = pos;
572 pos += ETH_ALEN;
573 /* RSSI */
574 rssi = *pos++;
575 /* Packet time stamp */
576 pos += 8;
577 /* Beacon interval */
578 intvl = get_unaligned_le16(pos);
579 pos += 2;
580 /* Capabilities */
581 capa = get_unaligned_le16(pos);
582 pos += 2;
583
584 /* To find out the channel, we must parse the IEs */
585 ie = pos;
586 /* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
587 interval, capabilities */
588 ielen = left = len - (6 + 1 + 8 + 2 + 2);
589 while (left >= 2) {
590 u8 id, elen;
591 id = *pos++;
592 elen = *pos++;
593 left -= 2;
4083858c
DW		 594 if (elen > left || elen == 0) {
595 lbs_deb_scan("scan response: invalid IE fmt\n");
e86dc1ca 596 goto done;
4083858c
DW		 597 }
598
e86dc1ca
KD		 599 if (id == WLAN_EID_DS_PARAMS)
600 chan_no = *pos;
601 if (id == WLAN_EID_SSID) {
602 ssid = pos;
603 ssid_len = elen;
604 }
605 left -= elen;
606 pos += elen;
607 }
608
609 /* No channel, no luck */
610 if (chan_no != -1) {
611 struct wiphy *wiphy = priv->wdev->wiphy;
612 int freq = ieee80211_channel_to_frequency(chan_no);
613 struct ieee80211_channel *channel =
614 ieee80211_get_channel(wiphy, freq);
615
616 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
617 "%d dBm\n",
618 bssid, capa, chan_no,
619 print_ssid(ssid_buf, ssid, ssid_len),
620 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
621
622 if (channel ||
623 !(channel->flags & IEEE80211_CHAN_DISABLED))
624 cfg80211_inform_bss(wiphy, channel,
625 bssid, le64_to_cpu(*(__le64 *)tsfdesc),
626 capa, intvl, ie, ielen,
627 LBS_SCAN_RSSI_TO_MBM(rssi),
628 GFP_KERNEL);
4083858c
DW		 629 } else
630 lbs_deb_scan("scan response: missing BSS channel IE\n");
631
e86dc1ca
KD		 632 tsfdesc += 8;
633 }
634 ret = 0;
635
636 done:
637 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
638 return ret;
639}
640
641
642/*
643 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
644 * TLV and a rates TLV. Determine the maximum size of them:
645 */
646#define LBS_SCAN_MAX_CMD_SIZE \
647 (sizeof(struct cmd_ds_802_11_scan) \
648 + LBS_MAX_SSID_TLV_SIZE \
649 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
650 + LBS_MAX_RATES_TLV_SIZE)
651
652/*
653 * Assumes priv->scan_req is initialized and valid
654 * Assumes priv->scan_channel is initialized
655 */
656static void lbs_scan_worker(struct work_struct *work)
657{
658 struct lbs_private *priv =
659 container_of(work, struct lbs_private, scan_work.work);
660 struct cmd_ds_802_11_scan *scan_cmd;
661 u8 *tlv; /* pointer into our current, growing TLV storage area */
662 int last_channel;
663 int running, carrier;
664
665 lbs_deb_enter(LBS_DEB_SCAN);
666
667 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
668 if (scan_cmd == NULL)
669 goto out_no_scan_cmd;
670
671 /* prepare fixed part of scan command */
672 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
673
674 /* stop network while we're away from our main channel */
675 running = !netif_queue_stopped(priv->dev);
676 carrier = netif_carrier_ok(priv->dev);
677 if (running)
678 netif_stop_queue(priv->dev);
679 if (carrier)
680 netif_carrier_off(priv->dev);
681
682 /* prepare fixed part of scan command */
683 tlv = scan_cmd->tlvbuffer;
684
685 /* add SSID TLV */
686 if (priv->scan_req->n_ssids)
687 tlv += lbs_add_ssid_tlv(tlv,
688 priv->scan_req->ssids[0].ssid,
689 priv->scan_req->ssids[0].ssid_len);
690
691 /* add channel TLVs */
692 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
693 if (last_channel > priv->scan_req->n_channels)
694 last_channel = priv->scan_req->n_channels;
695 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
696 priv->scan_req->n_ssids);
697
698 /* add rates TLV */
699 tlv += lbs_add_supported_rates_tlv(tlv);
700
701 if (priv->scan_channel < priv->scan_req->n_channels) {
702 cancel_delayed_work(&priv->scan_work);
2e30168b
DD		 703 if (!priv->stopping)
704 queue_delayed_work(priv->work_thread, &priv->scan_work,
705 msecs_to_jiffies(300));
e86dc1ca
KD		 706 }
707
708 /* This is the final data we are about to send */
709 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
710 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
711 sizeof(*scan_cmd));
712 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
713 tlv - scan_cmd->tlvbuffer);
714
715 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
716 le16_to_cpu(scan_cmd->hdr.size),
717 lbs_ret_scan, 0);
718
719 if (priv->scan_channel >= priv->scan_req->n_channels) {
720 /* Mark scan done */
cc026819
DW		 721 if (priv->internal_scan)
722 kfree(priv->scan_req);
723 else
724 cfg80211_scan_done(priv->scan_req, false);
725
e86dc1ca 726 priv->scan_req = NULL;
cc026819 727 priv->last_scan = jiffies;
e86dc1ca
KD		 728 }
729
730 /* Restart network */
731 if (carrier)
732 netif_carrier_on(priv->dev);
733 if (running && !priv->tx_pending_len)
734 netif_wake_queue(priv->dev);
735
736 kfree(scan_cmd);
737
cc026819
DW		 738 /* Wake up anything waiting on scan completion */
739 if (priv->scan_req == NULL) {
740 lbs_deb_scan("scan: waking up waiters\n");
741 wake_up_all(&priv->scan_q);
742 }
743
e86dc1ca
KD		 744 out_no_scan_cmd:
745 lbs_deb_leave(LBS_DEB_SCAN);
746}
747
cc026819
DW		 748static void _internal_start_scan(struct lbs_private *priv, bool internal,
749 struct cfg80211_scan_request *request)
750{
751 lbs_deb_enter(LBS_DEB_CFG80211);
752
753 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
754 request->n_ssids, request->n_channels, request->ie_len);
755
756 priv->scan_channel = 0;
757 queue_delayed_work(priv->work_thread, &priv->scan_work,
758 msecs_to_jiffies(50));
759
760 priv->scan_req = request;
761 priv->internal_scan = internal;
762
763 lbs_deb_leave(LBS_DEB_CFG80211);
764}
e86dc1ca
KD		 765
766static int lbs_cfg_scan(struct wiphy *wiphy,
767 struct net_device *dev,
768 struct cfg80211_scan_request *request)
769{
770 struct lbs_private *priv = wiphy_priv(wiphy);
771 int ret = 0;
772
773 lbs_deb_enter(LBS_DEB_CFG80211);
774
775 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
776 /* old scan request not yet processed */
777 ret = -EAGAIN;
778 goto out;
779 }
780
cc026819 781 _internal_start_scan(priv, false, request);
e86dc1ca
KD		 782
783 if (priv->surpriseremoved)
784 ret = -EIO;
785
e86dc1ca
KD		 786 out:
787 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
788 return ret;
789}
790
791
792
793
794/***************************************************************************
795 * Events
796 */
797
798void lbs_send_disconnect_notification(struct lbs_private *priv)
799{
800 lbs_deb_enter(LBS_DEB_CFG80211);
801
802 cfg80211_disconnected(priv->dev,
803 0,
804 NULL, 0,
805 GFP_KERNEL);
806
807 lbs_deb_leave(LBS_DEB_CFG80211);
808}
809
810void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
811{
812 lbs_deb_enter(LBS_DEB_CFG80211);
813
814 cfg80211_michael_mic_failure(priv->dev,
815 priv->assoc_bss,
816 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
817 NL80211_KEYTYPE_GROUP :
818 NL80211_KEYTYPE_PAIRWISE,
819 -1,
820 NULL,
821 GFP_KERNEL);
822
823 lbs_deb_leave(LBS_DEB_CFG80211);
824}
825
826
827
828
829/***************************************************************************
830 * Connect/disconnect
831 */
832
833
834/*
835 * This removes all WEP keys
836 */
837static int lbs_remove_wep_keys(struct lbs_private *priv)
838{
839 struct cmd_ds_802_11_set_wep cmd;
840 int ret;
841
842 lbs_deb_enter(LBS_DEB_CFG80211);
843
844 memset(&cmd, 0, sizeof(cmd));
845 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
846 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
847 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
848
849 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
850
851 lbs_deb_leave(LBS_DEB_CFG80211);
852 return ret;
853}
854
855/*
856 * Set WEP keys
857 */
858static int lbs_set_wep_keys(struct lbs_private *priv)
859{
860 struct cmd_ds_802_11_set_wep cmd;
861 int i;
862 int ret;
863
864 lbs_deb_enter(LBS_DEB_CFG80211);
865
866 /*
867 * command 13 00
868 * size 50 00
869 * sequence xx xx
870 * result 00 00
871 * action 02 00 ACT_ADD
872 * transmit key 00 00
873 * type for key 1 01 WEP40
874 * type for key 2 00
875 * type for key 3 00
876 * type for key 4 00
877 * key 1 39 39 39 39 39 00 00 00
878 * 00 00 00 00 00 00 00 00
879 * key 2 00 00 00 00 00 00 00 00
880 * 00 00 00 00 00 00 00 00
881 * key 3 00 00 00 00 00 00 00 00
882 * 00 00 00 00 00 00 00 00
883 * key 4 00 00 00 00 00 00 00 00
884 */
885 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
886 priv->wep_key_len[2] || priv->wep_key_len[3]) {
887 /* Only set wep keys if we have at least one of them */
888 memset(&cmd, 0, sizeof(cmd));
889 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
890 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
891 cmd.action = cpu_to_le16(CMD_ACT_ADD);
892
893 for (i = 0; i < 4; i++) {
894 switch (priv->wep_key_len[i]) {
895 case WLAN_KEY_LEN_WEP40:
896 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
897 break;
898 case WLAN_KEY_LEN_WEP104:
899 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
900 break;
901 default:
902 cmd.keytype[i] = 0;
903 break;
904 }
905 memcpy(cmd.keymaterial[i], priv->wep_key[i],
906 priv->wep_key_len[i]);
907 }
908
909 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
910 } else {
911 /* Otherwise remove all wep keys */
912 ret = lbs_remove_wep_keys(priv);
913 }
914
915 lbs_deb_leave(LBS_DEB_CFG80211);
916 return ret;
917}
918
919
920/*
921 * Enable/Disable RSN status
922 */
923static int lbs_enable_rsn(struct lbs_private *priv, int enable)
924{
925 struct cmd_ds_802_11_enable_rsn cmd;
926 int ret;
927
928 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
929
930 /*
931 * cmd 2f 00
932 * size 0c 00
933 * sequence xx xx
934 * result 00 00
935 * action 01 00 ACT_SET
936 * enable 01 00
937 */
938 memset(&cmd, 0, sizeof(cmd));
939 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
940 cmd.action = cpu_to_le16(CMD_ACT_SET);
941 cmd.enable = cpu_to_le16(enable);
942
943 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
944
945 lbs_deb_leave(LBS_DEB_CFG80211);
946 return ret;
947}
948
949
950/*
951 * Set WPA/WPA key material
952 */
953
954/* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
955 * get rid of WEXT, this should go into host.h */
956
957struct cmd_key_material {
958 struct cmd_header hdr;
959
960 __le16 action;
961 struct MrvlIEtype_keyParamSet param;
beabe914 962} __packed;
e86dc1ca
KD		 963
964static int lbs_set_key_material(struct lbs_private *priv,
965 int key_type,
966 int key_info,
967 u8 *key, u16 key_len)
968{
969 struct cmd_key_material cmd;
970 int ret;
971
972 lbs_deb_enter(LBS_DEB_CFG80211);
973
974 /*
975 * Example for WPA (TKIP):
976 *
977 * cmd 5e 00
978 * size 34 00
979 * sequence xx xx
980 * result 00 00
981 * action 01 00
982 * TLV type 00 01 key param
983 * length 00 26
984 * key type 01 00 TKIP
985 * key info 06 00 UNICAST | ENABLED
986 * key len 20 00
987 * key 32 bytes
988 */
989 memset(&cmd, 0, sizeof(cmd));
990 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
991 cmd.action = cpu_to_le16(CMD_ACT_SET);
992 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
993 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
994 cmd.param.keytypeid = cpu_to_le16(key_type);
995 cmd.param.keyinfo = cpu_to_le16(key_info);
996 cmd.param.keylen = cpu_to_le16(key_len);
997 if (key && key_len)
998 memcpy(cmd.param.key, key, key_len);
999
1000 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1001
1002 lbs_deb_leave(LBS_DEB_CFG80211);
1003 return ret;
1004}
1005
1006
1007/*
1008 * Sets the auth type (open, shared, etc) in the firmware. That
1009 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1010 * command doesn't send an authentication frame at all, it just
1011 * stores the auth_type.
1012 */
1013static int lbs_set_authtype(struct lbs_private *priv,
1014 struct cfg80211_connect_params *sme)
1015{
1016 struct cmd_ds_802_11_authenticate cmd;
1017 int ret;
1018
1019 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1020
1021 /*
1022 * cmd 11 00
1023 * size 19 00
1024 * sequence xx xx
1025 * result 00 00
1026 * BSS id 00 13 19 80 da 30
1027 * auth type 00
1028 * reserved 00 00 00 00 00 00 00 00 00 00
1029 */
1030 memset(&cmd, 0, sizeof(cmd));
1031 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1032 if (sme->bssid)
1033 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1034 /* convert auth_type */
1035 ret = lbs_auth_to_authtype(sme->auth_type);
1036 if (ret < 0)
1037 goto done;
1038
1039 cmd.authtype = ret;
1040 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1041
1042 done:
1043 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1044 return ret;
1045}
1046
1047
1048/*
1049 * Create association request
1050 */
1051#define LBS_ASSOC_MAX_CMD_SIZE \
1052 (sizeof(struct cmd_ds_802_11_associate) \
1053 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1054 + LBS_MAX_SSID_TLV_SIZE \
1055 + LBS_MAX_CHANNEL_TLV_SIZE \
1056 + LBS_MAX_CF_PARAM_TLV_SIZE \
1057 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1058 + LBS_MAX_WPA_TLV_SIZE)
1059
1060static int lbs_associate(struct lbs_private *priv,
1061 struct cfg80211_bss *bss,
1062 struct cfg80211_connect_params *sme)
1063{
1064 struct cmd_ds_802_11_associate_response *resp;
1065 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1066 GFP_KERNEL);
1067 const u8 *ssid_eid;
1068 size_t len, resp_ie_len;
1069 int status;
1070 int ret;
1071 u8 *pos = &(cmd->iebuf[0]);
19757539 1072 u8 *tmp;
e86dc1ca
KD		 1073
1074 lbs_deb_enter(LBS_DEB_CFG80211);
1075
1076 if (!cmd) {
1077 ret = -ENOMEM;
1078 goto done;
1079 }
1080
1081 /*
1082 * cmd 50 00
1083 * length 34 00
1084 * sequence xx xx
1085 * result 00 00
1086 * BSS id 00 13 19 80 da 30
1087 * capabilities 11 00
1088 * listen interval 0a 00
1089 * beacon interval 00 00
1090 * DTIM period 00
1091 * TLVs xx (up to 512 bytes)
1092 */
1093 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1094
1095 /* Fill in static fields */
1096 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1097 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1098 cmd->capability = cpu_to_le16(bss->capability);
1099
1100 /* add SSID TLV */
1101 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1102 if (ssid_eid)
1103 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1104 else
1105 lbs_deb_assoc("no SSID\n");
1106
1107 /* add DS param TLV */
1108 if (bss->channel)
1109 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1110 else
1111 lbs_deb_assoc("no channel\n");
1112
1113 /* add (empty) CF param TLV */
1114 pos += lbs_add_cf_param_tlv(pos);
1115
1116 /* add rates TLV */
19757539 1117 tmp = pos + 4; /* skip Marvell IE header */
e86dc1ca 1118 pos += lbs_add_common_rates_tlv(pos, bss);
19757539 1119 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
e86dc1ca
KD		 1120
1121 /* add auth type TLV */
86df5f72 1122 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
e86dc1ca
KD		 1123 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1124
1125 /* add WPA/WPA2 TLV */
1126 if (sme->ie && sme->ie_len)
1127 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1128
1129 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1130 (u16)(pos - (u8 *) &cmd->iebuf);
1131 cmd->hdr.size = cpu_to_le16(len);
1132
86df5f72
DW		 1133 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1134 le16_to_cpu(cmd->hdr.size));
1135
e86dc1ca
KD		 1136 /* store for later use */
1137 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1138
1139 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1140 if (ret)
1141 goto done;
1142
e86dc1ca
KD		 1143 /* generate connect message to cfg80211 */
1144
1145 resp = (void *) cmd; /* recast for easier field access */
1146 status = le16_to_cpu(resp->statuscode);
1147
86df5f72
DW		 1148 /* Older FW versions map the IEEE 802.11 Status Code in the association
1149 * response to the following values returned in resp->statuscode:
1150 *
1151 * IEEE Status Code Marvell Status Code
1152 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1153 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1154 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1155 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1156 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1157 * others -> 0x0003 ASSOC_RESULT_REFUSED
1158 *
1159 * Other response codes:
1160 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1161 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1162 * association response from the AP)
1163 */
1164 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
e86dc1ca
KD		 1165 switch (status) {
1166 case 0:
1167 break;
1168 case 1:
1169 lbs_deb_assoc("invalid association parameters\n");
1170 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1171 break;
1172 case 2:
1173 lbs_deb_assoc("timer expired while waiting for AP\n");
1174 status = WLAN_STATUS_AUTH_TIMEOUT;
1175 break;
1176 case 3:
1177 lbs_deb_assoc("association refused by AP\n");
1178 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1179 break;
1180 case 4:
1181 lbs_deb_assoc("authentication refused by AP\n");
1182 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1183 break;
1184 default:
1185 lbs_deb_assoc("association failure %d\n", status);
86df5f72
DW		 1186 /* v5 OLPC firmware does return the AP status code if
1187 * it's not one of the values above. Let that through.
1188 */
1189 break;
1190 }
e86dc1ca
KD		 1191 }
1192
86df5f72
DW		 1193 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1194 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1195 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
e86dc1ca
KD		 1196
1197 resp_ie_len = le16_to_cpu(resp->hdr.size)
1198 - sizeof(resp->hdr)
1199 - 6;
1200 cfg80211_connect_result(priv->dev,
1201 priv->assoc_bss,
1202 sme->ie, sme->ie_len,
1203 resp->iebuf, resp_ie_len,
1204 status,
1205 GFP_KERNEL);
1206
1207 if (status == 0) {
1208 /* TODO: get rid of priv->connect_status */
1209 priv->connect_status = LBS_CONNECTED;
1210 netif_carrier_on(priv->dev);
1211 if (!priv->tx_pending_len)
1212 netif_tx_wake_all_queues(priv->dev);
1213 }
1214
e86dc1ca
KD		 1215done:
1216 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1217 return ret;
1218}
1219
cc026819
DW		 1220static struct cfg80211_scan_request *
1221_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1222{
1223 struct cfg80211_scan_request *creq = NULL;
1224 int i, n_channels = 0;
1225 enum ieee80211_band band;
1226
1227 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1228 if (wiphy->bands[band])
1229 n_channels += wiphy->bands[band]->n_channels;
1230 }
1231
1232 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1233 n_channels * sizeof(void *),
1234 GFP_ATOMIC);
1235 if (!creq)
1236 return NULL;
1237
1238 /* SSIDs come after channels */
1239 creq->ssids = (void *)&creq->channels[n_channels];
1240 creq->n_channels = n_channels;
1241 creq->n_ssids = 1;
1242
1243 /* Scan all available channels */
1244 i = 0;
1245 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1246 int j;
1247
1248 if (!wiphy->bands[band])
1249 continue;
1250
1251 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1252 /* ignore disabled channels */
1253 if (wiphy->bands[band]->channels[j].flags &
1254 IEEE80211_CHAN_DISABLED)
1255 continue;
1256
1257 creq->channels[i] = &wiphy->bands[band]->channels[j];
1258 i++;
1259 }
1260 }
1261 if (i) {
1262 /* Set real number of channels specified in creq->channels[] */
1263 creq->n_channels = i;
1264
1265 /* Scan for the SSID we're going to connect to */
1266 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1267 creq->ssids[0].ssid_len = sme->ssid_len;
1268 } else {
1269 /* No channels found... */
1270 kfree(creq);
1271 creq = NULL;
1272 }
e86dc1ca 1273
cc026819
DW		 1274 return creq;
1275}
e86dc1ca
KD		 1276
1277static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1278 struct cfg80211_connect_params *sme)
1279{
1280 struct lbs_private *priv = wiphy_priv(wiphy);
1281 struct cfg80211_bss *bss = NULL;
1282 int ret = 0;
1283 u8 preamble = RADIO_PREAMBLE_SHORT;
1284
1285 lbs_deb_enter(LBS_DEB_CFG80211);
1286
cc026819
DW		 1287 if (!sme->bssid) {
1288 /* Run a scan if one isn't in-progress already and if the last
1289 * scan was done more than 2 seconds ago.
e86dc1ca 1290 */
cc026819
DW		 1291 if (priv->scan_req == NULL &&
1292 time_after(jiffies, priv->last_scan + (2 * HZ))) {
1293 struct cfg80211_scan_request *creq;
e86dc1ca 1294
cc026819
DW		 1295 creq = _new_connect_scan_req(wiphy, sme);
1296 if (!creq) {
1297 ret = -EINVAL;
1298 goto done;
1299 }
1300
1301 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1302 _internal_start_scan(priv, true, creq);
1303 }
1304
1305 /* Wait for any in-progress scan to complete */
1306 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1307 wait_event_interruptible_timeout(priv->scan_q,
1308 (priv->scan_req == NULL),
1309 (15 * HZ));
1310 lbs_deb_assoc("assoc: scanning competed\n");
1311 }
e86dc1ca 1312
cc026819
DW		 1313 /* Find the BSS we want using available scan results */
1314 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1315 sme->ssid, sme->ssid_len,
1316 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
e86dc1ca 1317 if (!bss) {
cc026819 1318 lbs_pr_err("assoc: bss %pM not in scan results\n",
e86dc1ca
KD		 1319 sme->bssid);
1320 ret = -ENOENT;
1321 goto done;
1322 }
cc026819 1323 lbs_deb_assoc("trying %pM\n", bss->bssid);
e86dc1ca
KD		 1324 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1325 sme->crypto.cipher_group,
1326 sme->key_idx, sme->key_len);
1327
1328 /* As this is a new connection, clear locally stored WEP keys */
1329 priv->wep_tx_key = 0;
1330 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1331 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1332
1333 /* set/remove WEP keys */
1334 switch (sme->crypto.cipher_group) {
1335 case WLAN_CIPHER_SUITE_WEP40:
1336 case WLAN_CIPHER_SUITE_WEP104:
1337 /* Store provided WEP keys in priv-> */
1338 priv->wep_tx_key = sme->key_idx;
1339 priv->wep_key_len[sme->key_idx] = sme->key_len;
1340 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1341 /* Set WEP keys and WEP mode */
1342 lbs_set_wep_keys(priv);
1343 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1344 lbs_set_mac_control(priv);
1345 /* No RSN mode for WEP */
1346 lbs_enable_rsn(priv, 0);
1347 break;
1348 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1349 /*
1350 * If we don't have no WEP, no WPA and no WPA2,
1351 * we remove all keys like in the WPA/WPA2 setup,
1352 * we just don't set RSN.
1353 *
1354 * Therefore: fall-throught
1355 */
1356 case WLAN_CIPHER_SUITE_TKIP:
1357 case WLAN_CIPHER_SUITE_CCMP:
1358 /* Remove WEP keys and WEP mode */
1359 lbs_remove_wep_keys(priv);
1360 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1361 lbs_set_mac_control(priv);
1362
1363 /* clear the WPA/WPA2 keys */
1364 lbs_set_key_material(priv,
1365 KEY_TYPE_ID_WEP, /* doesn't matter */
1366 KEY_INFO_WPA_UNICAST,
1367 NULL, 0);
1368 lbs_set_key_material(priv,
1369 KEY_TYPE_ID_WEP, /* doesn't matter */
1370 KEY_INFO_WPA_MCAST,
1371 NULL, 0);
1372 /* RSN mode for WPA/WPA2 */
1373 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1374 break;
1375 default:
1376 lbs_pr_err("unsupported cipher group 0x%x\n",
1377 sme->crypto.cipher_group);
1378 ret = -ENOTSUPP;
1379 goto done;
1380 }
1381
1382 lbs_set_authtype(priv, sme);
1383 lbs_set_radio(priv, preamble, 1);
1384
1385 /* Do the actual association */
cc026819 1386 ret = lbs_associate(priv, bss, sme);
e86dc1ca
KD		 1387
1388 done:
1389 if (bss)
1390 cfg80211_put_bss(bss);
1391 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1392 return ret;
1393}
1394
e86dc1ca
KD		 1395static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1396 u16 reason_code)
1397{
1398 struct lbs_private *priv = wiphy_priv(wiphy);
1399 struct cmd_ds_802_11_deauthenticate cmd;
ff9fc791 1400
e86dc1ca 1401 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
ff9fc791 1402
e86dc1ca
KD		 1403 /* store for lbs_cfg_ret_disconnect() */
1404 priv->disassoc_reason = reason_code;
1405
1406 memset(&cmd, 0, sizeof(cmd));
1407 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1408 /* Mildly ugly to use a locally store my own BSSID ... */
1409 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1410 cmd.reasoncode = cpu_to_le16(reason_code);
1411
e4fe4eaf
KD		 1412 if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
1413 return -EFAULT;
1414
1415 cfg80211_disconnected(priv->dev,
1416 priv->disassoc_reason,
1417 NULL, 0,
1418 GFP_KERNEL);
1419 priv->connect_status = LBS_DISCONNECTED;
e86dc1ca
KD		 1420
1421 return 0;
1422}
1423
1424
1425static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1426 struct net_device *netdev,
1427 u8 key_index)
1428{
1429 struct lbs_private *priv = wiphy_priv(wiphy);
1430
1431 lbs_deb_enter(LBS_DEB_CFG80211);
1432
1433 if (key_index != priv->wep_tx_key) {
1434 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1435 priv->wep_tx_key = key_index;
1436 lbs_set_wep_keys(priv);
1437 }
1438
1439 return 0;
1440}
1441
1442
1443static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213 1444 u8 idx, bool pairwise, const u8 *mac_addr,
e86dc1ca
KD		 1445 struct key_params *params)
1446{
1447 struct lbs_private *priv = wiphy_priv(wiphy);
1448 u16 key_info;
1449 u16 key_type;
1450 int ret = 0;
1451
1452 lbs_deb_enter(LBS_DEB_CFG80211);
1453
1454 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1455 params->cipher, mac_addr);
1456 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1457 idx, params->key_len);
1458 if (params->key_len)
1459 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1460 params->key, params->key_len);
1461
1462 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1463 if (params->seq_len)
1464 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1465 params->seq, params->seq_len);
1466
1467 switch (params->cipher) {
1468 case WLAN_CIPHER_SUITE_WEP40:
1469 case WLAN_CIPHER_SUITE_WEP104:
1470 /* actually compare if something has changed ... */
1471 if ((priv->wep_key_len[idx] != params->key_len) ||
1472 memcmp(priv->wep_key[idx],
1473 params->key, params->key_len) != 0) {
1474 priv->wep_key_len[idx] = params->key_len;
1475 memcpy(priv->wep_key[idx],
1476 params->key, params->key_len);
1477 lbs_set_wep_keys(priv);
1478 }
1479 break;
1480 case WLAN_CIPHER_SUITE_TKIP:
1481 case WLAN_CIPHER_SUITE_CCMP:
1482 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1483 ? KEY_INFO_WPA_UNICAST
1484 : KEY_INFO_WPA_MCAST);
1485 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1486 ? KEY_TYPE_ID_TKIP
1487 : KEY_TYPE_ID_AES;
1488 lbs_set_key_material(priv,
1489 key_type,
1490 key_info,
1491 params->key, params->key_len);
1492 break;
1493 default:
1494 lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
1495 ret = -ENOTSUPP;
1496 break;
1497 }
1498
1499 return ret;
1500}
1501
1502
1503static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213 1504 u8 key_index, bool pairwise, const u8 *mac_addr)
e86dc1ca
KD		 1505{
1506
1507 lbs_deb_enter(LBS_DEB_CFG80211);
1508
1509 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1510 key_index, mac_addr);
1511
1512#ifdef TODO
1513 struct lbs_private *priv = wiphy_priv(wiphy);
1514 /*
1515 * I think can keep this a NO-OP, because:
1516
1517 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1518 * - neither "iw" nor "wpa_supplicant" won't call this during
1519 * an ongoing connection
1520 * - TODO: but I have to check if this is still true when
1521 * I set the AP to periodic re-keying
1522 * - we've not kzallec() something when we've added a key at
1523 * lbs_cfg_connect() or lbs_cfg_add_key().
1524 *
1525 * This causes lbs_cfg_del_key() only called at disconnect time,
1526 * where we'd just waste time deleting a key that is not going
1527 * to be used anyway.
1528 */
1529 if (key_index < 3 && priv->wep_key_len[key_index]) {
1530 priv->wep_key_len[key_index] = 0;
1531 lbs_set_wep_keys(priv);
1532 }
1533#endif
1534
1535 return 0;
1536}
1537
1538
e86dc1ca
KD		 1539/***************************************************************************
1540 * Get station
1541 */
1542
e86dc1ca
KD		 1543static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1544 u8 *mac, struct station_info *sinfo)
1545{
1546 struct lbs_private *priv = wiphy_priv(wiphy);
1547 s8 signal, noise;
1548 int ret;
1549 size_t i;
1550
1551 lbs_deb_enter(LBS_DEB_CFG80211);
1552
1553 sinfo->filled |= STATION_INFO_TX_BYTES |
1554 STATION_INFO_TX_PACKETS |
1555 STATION_INFO_RX_BYTES |
1556 STATION_INFO_RX_PACKETS;
1557 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1558 sinfo->tx_packets = priv->dev->stats.tx_packets;
1559 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1560 sinfo->rx_packets = priv->dev->stats.rx_packets;
1561
1562 /* Get current RSSI */
9fb7663d 1563 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1564 if (ret == 0) {
1565 sinfo->signal = signal;
1566 sinfo->filled |= STATION_INFO_SIGNAL;
1567 }
1568
1569 /* Convert priv->cur_rate from hw_value to NL80211 value */
1570 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1571 if (priv->cur_rate == lbs_rates[i].hw_value) {
1572 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1573 sinfo->filled |= STATION_INFO_TX_BITRATE;
1574 break;
1575 }
1576 }
1577
1578 return 0;
1579}
1580
1581
1582
1583
1584/***************************************************************************
1585 * "Site survey", here just current channel and noise level
1586 */
1587
1588static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
1589 int idx, struct survey_info *survey)
1590{
1591 struct lbs_private *priv = wiphy_priv(wiphy);
1592 s8 signal, noise;
1593 int ret;
1594
1595 if (idx != 0)
1596 ret = -ENOENT;
1597
1598 lbs_deb_enter(LBS_DEB_CFG80211);
1599
1600 survey->channel = ieee80211_get_channel(wiphy,
1601 ieee80211_channel_to_frequency(priv->channel));
1602
9fb7663d 1603 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1604 if (ret == 0) {
1605 survey->filled = SURVEY_INFO_NOISE_DBM;
1606 survey->noise = noise;
1607 }
1608
1609 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1610 return ret;
1611}
1612
1613
1614
1615
1616/***************************************************************************
1617 * Change interface
1618 */
1619
1620static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1621 enum nl80211_iftype type, u32 *flags,
1622 struct vif_params *params)
1623{
1624 struct lbs_private *priv = wiphy_priv(wiphy);
1625 int ret = 0;
1626
1627 lbs_deb_enter(LBS_DEB_CFG80211);
1628
1629 switch (type) {
1630 case NL80211_IFTYPE_MONITOR:
a45b6f4f 1631 ret = lbs_set_monitor_mode(priv, 1);
e86dc1ca
KD		 1632 break;
1633 case NL80211_IFTYPE_STATION:
1634 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1635 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1636 if (!ret)
1637 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
1638 break;
1639 case NL80211_IFTYPE_ADHOC:
1640 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1641 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1642 if (!ret)
1643 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
1644 break;
1645 default:
1646 ret = -ENOTSUPP;
1647 }
1648
1649 if (!ret)
1650 priv->wdev->iftype = type;
1651
1652 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1653 return ret;
1654}
1655
1656
1657
1658/***************************************************************************
1659 * IBSS (Ad-Hoc)
1660 */
1661
1662/* The firmware needs the following bits masked out of the beacon-derived
1663 * capability field when associating/joining to a BSS:
1664 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1665 */
1666#define CAPINFO_MASK (~(0xda00))
1667
1668
1669static void lbs_join_post(struct lbs_private *priv,
1670 struct cfg80211_ibss_params *params,
1671 u8 *bssid, u16 capability)
1672{
1673 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1674 2 + 4 + /* basic rates */
1675 2 + 1 + /* DS parameter */
1676 2 + 2 + /* atim */
1677 2 + 8]; /* extended rates */
1678 u8 *fake = fake_ie;
1679
1680 lbs_deb_enter(LBS_DEB_CFG80211);
1681
1682 /*
1683 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1684 * the real IE from the firmware. So we fabricate a fake IE based on
1685 * what the firmware actually sends (sniffed with wireshark).
1686 */
1687 /* Fake SSID IE */
1688 *fake++ = WLAN_EID_SSID;
1689 *fake++ = params->ssid_len;
1690 memcpy(fake, params->ssid, params->ssid_len);
1691 fake += params->ssid_len;
1692 /* Fake supported basic rates IE */
1693 *fake++ = WLAN_EID_SUPP_RATES;
1694 *fake++ = 4;
1695 *fake++ = 0x82;
1696 *fake++ = 0x84;
1697 *fake++ = 0x8b;
1698 *fake++ = 0x96;
1699 /* Fake DS channel IE */
1700 *fake++ = WLAN_EID_DS_PARAMS;
1701 *fake++ = 1;
1702 *fake++ = params->channel->hw_value;
1703 /* Fake IBSS params IE */
1704 *fake++ = WLAN_EID_IBSS_PARAMS;
1705 *fake++ = 2;
1706 *fake++ = 0; /* ATIM=0 */
1707 *fake++ = 0;
1708 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1709 * but I don't know how this could be checked */
1710 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1711 *fake++ = 8;
1712 *fake++ = 0x0c;
1713 *fake++ = 0x12;
1714 *fake++ = 0x18;
1715 *fake++ = 0x24;
1716 *fake++ = 0x30;
1717 *fake++ = 0x48;
1718 *fake++ = 0x60;
1719 *fake++ = 0x6c;
1720 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1721
1722 cfg80211_inform_bss(priv->wdev->wiphy,
1723 params->channel,
1724 bssid,
1725 0,
1726 capability,
1727 params->beacon_interval,
1728 fake_ie, fake - fake_ie,
1729 0, GFP_KERNEL);
e4fe4eaf
KD		 1730
1731 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1732 priv->wdev->ssid_len = params->ssid_len;
1733
e86dc1ca
KD		 1734 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1735
1736 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1737 priv->connect_status = LBS_CONNECTED;
1738 netif_carrier_on(priv->dev);
1739 if (!priv->tx_pending_len)
1740 netif_wake_queue(priv->dev);
1741
1742 lbs_deb_leave(LBS_DEB_CFG80211);
1743}
1744
1745static int lbs_ibss_join_existing(struct lbs_private *priv,
1746 struct cfg80211_ibss_params *params,
1747 struct cfg80211_bss *bss)
1748{
1749 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1750 struct cmd_ds_802_11_ad_hoc_join cmd;
1751 u8 preamble = RADIO_PREAMBLE_SHORT;
1752 int ret = 0;
1753
1754 lbs_deb_enter(LBS_DEB_CFG80211);
1755
1756 /* TODO: set preamble based on scan result */
1757 ret = lbs_set_radio(priv, preamble, 1);
1758 if (ret)
1759 goto out;
1760
1761 /*
1762 * Example CMD_802_11_AD_HOC_JOIN command:
1763 *
1764 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1765 * size 65 00
1766 * sequence xx xx
1767 * result 00 00
1768 * bssid 02 27 27 97 2f 96
1769 * ssid 49 42 53 53 00 00 00 00
1770 * 00 00 00 00 00 00 00 00
1771 * 00 00 00 00 00 00 00 00
1772 * 00 00 00 00 00 00 00 00
1773 * type 02 CMD_BSS_TYPE_IBSS
1774 * beacon period 64 00
1775 * dtim period 00
1776 * timestamp 00 00 00 00 00 00 00 00
1777 * localtime 00 00 00 00 00 00 00 00
1778 * IE DS 03
1779 * IE DS len 01
1780 * IE DS channel 01
1781 * reserveed 00 00 00 00
1782 * IE IBSS 06
1783 * IE IBSS len 02
1784 * IE IBSS atim 00 00
1785 * reserved 00 00 00 00
1786 * capability 02 00
1787 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1788 * fail timeout ff 00
1789 * probe delay 00 00
1790 */
1791 memset(&cmd, 0, sizeof(cmd));
1792 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1793
1794 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1795 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1796 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1797 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1798 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1799 cmd.bss.ds.header.len = 1;
1800 cmd.bss.ds.channel = params->channel->hw_value;
1801 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1802 cmd.bss.ibss.header.len = 2;
1803 cmd.bss.ibss.atimwindow = 0;
1804 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1805
1806 /* set rates to the intersection of our rates and the rates in the
1807 bss */
1808 if (!rates_eid) {
1809 lbs_add_rates(cmd.bss.rates);
1810 } else {
1811 int hw, i;
1812 u8 rates_max = rates_eid[1];
1813 u8 *rates = cmd.bss.rates;
1814 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1815 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1816 for (i = 0; i < rates_max; i++) {
1817 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1818 u8 rate = rates_eid[i+2];
1819 if (rate == 0x02 || rate == 0x04 ||
1820 rate == 0x0b || rate == 0x16)
1821 rate |= 0x80;
1822 *rates++ = rate;
1823 }
1824 }
1825 }
1826 }
1827
1828 /* Only v8 and below support setting this */
1829 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1830 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1831 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1832 }
1833 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1834 if (ret)
1835 goto out;
1836
1837 /*
1838 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1839 *
1840 * response 2c 80
1841 * size 09 00
1842 * sequence xx xx
1843 * result 00 00
1844 * reserved 00
1845 */
1846 lbs_join_post(priv, params, bss->bssid, bss->capability);
1847
1848 out:
1849 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1850 return ret;
1851}
1852
1853
1854
1855static int lbs_ibss_start_new(struct lbs_private *priv,
1856 struct cfg80211_ibss_params *params)
1857{
1858 struct cmd_ds_802_11_ad_hoc_start cmd;
1859 struct cmd_ds_802_11_ad_hoc_result *resp =
1860 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1861 u8 preamble = RADIO_PREAMBLE_SHORT;
1862 int ret = 0;
1863 u16 capability;
1864
1865 lbs_deb_enter(LBS_DEB_CFG80211);
1866
1867 ret = lbs_set_radio(priv, preamble, 1);
1868 if (ret)
1869 goto out;
1870
1871 /*
1872 * Example CMD_802_11_AD_HOC_START command:
1873 *
1874 * command 2b 00 CMD_802_11_AD_HOC_START
1875 * size b1 00
1876 * sequence xx xx
1877 * result 00 00
1878 * ssid 54 45 53 54 00 00 00 00
1879 * 00 00 00 00 00 00 00 00
1880 * 00 00 00 00 00 00 00 00
1881 * 00 00 00 00 00 00 00 00
1882 * bss type 02
1883 * beacon period 64 00
1884 * dtim period 00
1885 * IE IBSS 06
1886 * IE IBSS len 02
1887 * IE IBSS atim 00 00
1888 * reserved 00 00 00 00
1889 * IE DS 03
1890 * IE DS len 01
1891 * IE DS channel 01
1892 * reserved 00 00 00 00
1893 * probe delay 00 00
1894 * capability 02 00
1895 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1896 * 0c 12 18 24 30 48 60 6c
1897 * padding 100 bytes
1898 */
1899 memset(&cmd, 0, sizeof(cmd));
1900 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1901 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1902 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1903 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1904 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1905 cmd.ibss.header.len = 2;
1906 cmd.ibss.atimwindow = 0;
1907 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1908 cmd.ds.header.len = 1;
1909 cmd.ds.channel = params->channel->hw_value;
1910 /* Only v8 and below support setting probe delay */
1911 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1912 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1913 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1914 capability = WLAN_CAPABILITY_IBSS;
1915 cmd.capability = cpu_to_le16(capability);
1916 lbs_add_rates(cmd.rates);
1917
1918
1919 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1920 if (ret)
1921 goto out;
1922
1923 /*
1924 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1925 *
1926 * response 2b 80
1927 * size 14 00
1928 * sequence xx xx
1929 * result 00 00
1930 * reserved 00
1931 * bssid 02 2b 7b 0f 86 0e
1932 */
1933 lbs_join_post(priv, params, resp->bssid, capability);
1934
1935 out:
1936 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1937 return ret;
1938}
1939
1940
1941static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1942 struct cfg80211_ibss_params *params)
1943{
1944 struct lbs_private *priv = wiphy_priv(wiphy);
1945 int ret = 0;
1946 struct cfg80211_bss *bss;
1947 DECLARE_SSID_BUF(ssid_buf);
1948
1949 lbs_deb_enter(LBS_DEB_CFG80211);
1950
1951 if (!params->channel) {
1952 ret = -ENOTSUPP;
1953 goto out;
1954 }
1955
1956 ret = lbs_set_channel(priv, params->channel->hw_value);
1957 if (ret)
ff9fc791
HS		 1958 goto out;
1959
e86dc1ca
KD		 1960 /* Search if someone is beaconing. This assumes that the
1961 * bss list is populated already */
1962 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
1963 params->ssid, params->ssid_len,
1964 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1965
1966 if (bss) {
1967 ret = lbs_ibss_join_existing(priv, params, bss);
1968 cfg80211_put_bss(bss);
1969 } else
1970 ret = lbs_ibss_start_new(priv, params);
1971
ff9fc791
HS		 1972
1973 out:
1974 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1975 return ret;
1976}
1977
1978
e86dc1ca
KD		 1979static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1980{
1981 struct lbs_private *priv = wiphy_priv(wiphy);
1982 struct cmd_ds_802_11_ad_hoc_stop cmd;
1983 int ret = 0;
1984
1985 lbs_deb_enter(LBS_DEB_CFG80211);
1986
1987 memset(&cmd, 0, sizeof(cmd));
1988 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1989 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1990
1991 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1992 lbs_mac_event_disconnected(priv);
1993
1994 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1995 return ret;
1996}
1997
ff9fc791
HS		 1998
1999
e86dc1ca
KD		 2000
2001/***************************************************************************
2002 * Initialization
2003 */
2004
ff9fc791
HS		 2005static struct cfg80211_ops lbs_cfg80211_ops = {
2006 .set_channel = lbs_cfg_set_channel,
e86dc1ca
KD		 2007 .scan = lbs_cfg_scan,
2008 .connect = lbs_cfg_connect,
2009 .disconnect = lbs_cfg_disconnect,
2010 .add_key = lbs_cfg_add_key,
2011 .del_key = lbs_cfg_del_key,
2012 .set_default_key = lbs_cfg_set_default_key,
2013 .get_station = lbs_cfg_get_station,
2014 .dump_survey = lbs_get_survey,
2015 .change_virtual_intf = lbs_change_intf,
2016 .join_ibss = lbs_join_ibss,
2017 .leave_ibss = lbs_leave_ibss,
ff9fc791
HS		 2018};
2019
2020
2021/*
2022 * At this time lbs_private *priv doesn't even exist, so we just allocate
2023 * memory and don't initialize the wiphy further. This is postponed until we
2024 * can talk to the firmware and happens at registration time in
2025 * lbs_cfg_wiphy_register().
2026 */
2027struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2028{
2029 int ret = 0;
2030 struct wireless_dev *wdev;
2031
2032 lbs_deb_enter(LBS_DEB_CFG80211);
2033
2034 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2035 if (!wdev) {
2036 dev_err(dev, "cannot allocate wireless device\n");
2037 return ERR_PTR(-ENOMEM);
2038 }
2039
2040 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2041 if (!wdev->wiphy) {
2042 dev_err(dev, "cannot allocate wiphy\n");
2043 ret = -ENOMEM;
2044 goto err_wiphy_new;
2045 }
2046
2047 lbs_deb_leave(LBS_DEB_CFG80211);
2048 return wdev;
2049
2050 err_wiphy_new:
2051 kfree(wdev);
2052 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2053 return ERR_PTR(ret);
2054}
2055
2056
e86dc1ca
KD		 2057static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2058{
2059 struct region_code_mapping {
2060 const char *cn;
2061 int code;
2062 };
2063
2064 /* Section 5.17.2 */
2065 static struct region_code_mapping regmap[] = {
2066 {"US ", 0x10}, /* US FCC */
2067 {"CA ", 0x20}, /* Canada */
2068 {"EU ", 0x30}, /* ETSI */
2069 {"ES ", 0x31}, /* Spain */
2070 {"FR ", 0x32}, /* France */
2071 {"JP ", 0x40}, /* Japan */
2072 };
2073 size_t i;
2074
2075 lbs_deb_enter(LBS_DEB_CFG80211);
2076
2077 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2078 if (regmap[i].code == priv->regioncode) {
2079 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2080 break;
2081 }
2082
2083 lbs_deb_leave(LBS_DEB_CFG80211);
2084}
2085
2086
ff9fc791
HS		 2087/*
2088 * This function get's called after lbs_setup_firmware() determined the
2089 * firmware capabities. So we can setup the wiphy according to our
2090 * hardware/firmware.
2091 */
2092int lbs_cfg_register(struct lbs_private *priv)
2093{
2094 struct wireless_dev *wdev = priv->wdev;
2095 int ret;
2096
2097 lbs_deb_enter(LBS_DEB_CFG80211);
2098
2099 wdev->wiphy->max_scan_ssids = 1;
2100 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2101
e86dc1ca
KD		 2102 wdev->wiphy->interface_modes =
2103 BIT(NL80211_IFTYPE_STATION) |
2104 BIT(NL80211_IFTYPE_ADHOC);
2105 if (lbs_rtap_supported(priv))
2106 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
ff9fc791 2107
ff9fc791
HS		 2108 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2109
2110 /*
2111 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2112 * never seen a firmware without WPA
2113 */
2114 wdev->wiphy->cipher_suites = cipher_suites;
2115 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1047d5ed 2116 wdev->wiphy->reg_notifier = lbs_reg_notifier;
ff9fc791
HS		 2117
2118 ret = wiphy_register(wdev->wiphy);
2119 if (ret < 0)
2120 lbs_pr_err("cannot register wiphy device\n");
2121
73714004
DM		 2122 priv->wiphy_registered = true;
2123
ff9fc791
HS		 2124 ret = register_netdev(priv->dev);
2125 if (ret)
2126 lbs_pr_err("cannot register network device\n");
2127
e86dc1ca
KD		 2128 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2129
2130 lbs_cfg_set_regulatory_hint(priv);
2131
ff9fc791
HS		 2132 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2133 return ret;
2134}
2135
1047d5ed
KD		 2136int lbs_reg_notifier(struct wiphy *wiphy,
2137 struct regulatory_request *request)
2138{
cc4b9d39
DW		 2139 struct lbs_private *priv = wiphy_priv(wiphy);
2140 int ret;
2141
1047d5ed
KD		 2142 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2143 "callback for domain %c%c\n", request->alpha2[0],
2144 request->alpha2[1]);
2145
cc4b9d39 2146 ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
1047d5ed
KD		 2147
2148 lbs_deb_leave(LBS_DEB_CFG80211);
cc4b9d39 2149 return ret;
1047d5ed 2150}
ff9fc791 2151
e86dc1ca
KD		 2152void lbs_scan_deinit(struct lbs_private *priv)
2153{
2154 lbs_deb_enter(LBS_DEB_CFG80211);
2155 cancel_delayed_work_sync(&priv->scan_work);
2156}
2157
2158
ff9fc791
HS		 2159void lbs_cfg_free(struct lbs_private *priv)
2160{
2161 struct wireless_dev *wdev = priv->wdev;
2162
2163 lbs_deb_enter(LBS_DEB_CFG80211);
2164
2165 if (!wdev)
2166 return;
2167
73714004 2168 if (priv->wiphy_registered)
ff9fc791 2169 wiphy_unregister(wdev->wiphy);
73714004
DM		 2170
2171 if (wdev->wiphy)
ff9fc791 2172 wiphy_free(wdev->wiphy);
73714004 2173
ff9fc791
HS		 2174 kfree(wdev);
2175}
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