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Merge branch 'keys-asym-keyctl' into keys-next
[deliverable/linux.git] / drivers / net / wireless / broadcom / brcm80211 / brcmfmac / cfg80211.c
1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
18
19 #include <linux/kernel.h>
20 #include <linux/etherdevice.h>
21 #include <linux/module.h>
22 #include <linux/vmalloc.h>
23 #include <net/cfg80211.h>
24 #include <net/netlink.h>
25
26 #include <brcmu_utils.h>
27 #include <defs.h>
28 #include <brcmu_wifi.h>
29 #include "core.h"
30 #include "debug.h"
31 #include "tracepoint.h"
32 #include "fwil_types.h"
33 #include "p2p.h"
34 #include "btcoex.h"
35 #include "cfg80211.h"
36 #include "feature.h"
37 #include "fwil.h"
38 #include "proto.h"
39 #include "vendor.h"
40 #include "bus.h"
41 #include "common.h"
42
43 #define BRCMF_SCAN_IE_LEN_MAX 2048
44 #define BRCMF_PNO_VERSION 2
45 #define BRCMF_PNO_TIME 30
46 #define BRCMF_PNO_REPEAT 4
47 #define BRCMF_PNO_FREQ_EXPO_MAX 3
48 #define BRCMF_PNO_MAX_PFN_COUNT 16
49 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
50 #define BRCMF_PNO_HIDDEN_BIT 2
51 #define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
52 #define BRCMF_PNO_SCAN_COMPLETE 1
53 #define BRCMF_PNO_SCAN_INCOMPLETE 0
54
55 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
56 #define WPA_OUI_TYPE 1
57 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
58 #define WME_OUI_TYPE 2
59 #define WPS_OUI_TYPE 4
60
61 #define VS_IE_FIXED_HDR_LEN 6
62 #define WPA_IE_VERSION_LEN 2
63 #define WPA_IE_MIN_OUI_LEN 4
64 #define WPA_IE_SUITE_COUNT_LEN 2
65
66 #define WPA_CIPHER_NONE 0 /* None */
67 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
68 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
69 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
70 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
71
72 #define RSN_AKM_NONE 0 /* None (IBSS) */
73 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
74 #define RSN_AKM_PSK 2 /* Pre-shared Key */
75 #define RSN_AKM_SHA256_1X 5 /* SHA256, 802.1X */
76 #define RSN_AKM_SHA256_PSK 6 /* SHA256, Pre-shared Key */
77 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
78 #define RSN_CAP_PTK_REPLAY_CNTR_MASK (BIT(2) | BIT(3))
79 #define RSN_CAP_MFPR_MASK BIT(6)
80 #define RSN_CAP_MFPC_MASK BIT(7)
81 #define RSN_PMKID_COUNT_LEN 2
82
83 #define VNDR_IE_CMD_LEN 4 /* length of the set command
84 * string :"add", "del" (+ NUL)
85 */
86 #define VNDR_IE_COUNT_OFFSET 4
87 #define VNDR_IE_PKTFLAG_OFFSET 8
88 #define VNDR_IE_VSIE_OFFSET 12
89 #define VNDR_IE_HDR_SIZE 12
90 #define VNDR_IE_PARSE_LIMIT 5
91
92 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
93 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
94
95 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
96 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
97 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
98
99 #define BRCMF_SCAN_CHANNEL_TIME 40
100 #define BRCMF_SCAN_UNASSOC_TIME 40
101 #define BRCMF_SCAN_PASSIVE_TIME 120
102
103 #define BRCMF_ND_INFO_TIMEOUT msecs_to_jiffies(2000)
104
105 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
106 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
107
108 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
109 {
110 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
111 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
112 vif->sme_state);
113 return false;
114 }
115 return true;
116 }
117
118 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
119 #define RATETAB_ENT(_rateid, _flags) \
120 { \
121 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
122 .hw_value = (_rateid), \
123 .flags = (_flags), \
124 }
125
126 static struct ieee80211_rate __wl_rates[] = {
127 RATETAB_ENT(BRCM_RATE_1M, 0),
128 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
129 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
130 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
131 RATETAB_ENT(BRCM_RATE_6M, 0),
132 RATETAB_ENT(BRCM_RATE_9M, 0),
133 RATETAB_ENT(BRCM_RATE_12M, 0),
134 RATETAB_ENT(BRCM_RATE_18M, 0),
135 RATETAB_ENT(BRCM_RATE_24M, 0),
136 RATETAB_ENT(BRCM_RATE_36M, 0),
137 RATETAB_ENT(BRCM_RATE_48M, 0),
138 RATETAB_ENT(BRCM_RATE_54M, 0),
139 };
140
141 #define wl_g_rates (__wl_rates + 0)
142 #define wl_g_rates_size ARRAY_SIZE(__wl_rates)
143 #define wl_a_rates (__wl_rates + 4)
144 #define wl_a_rates_size (wl_g_rates_size - 4)
145
146 #define CHAN2G(_channel, _freq) { \
147 .band = NL80211_BAND_2GHZ, \
148 .center_freq = (_freq), \
149 .hw_value = (_channel), \
150 .flags = IEEE80211_CHAN_DISABLED, \
151 .max_antenna_gain = 0, \
152 .max_power = 30, \
153 }
154
155 #define CHAN5G(_channel) { \
156 .band = NL80211_BAND_5GHZ, \
157 .center_freq = 5000 + (5 * (_channel)), \
158 .hw_value = (_channel), \
159 .flags = IEEE80211_CHAN_DISABLED, \
160 .max_antenna_gain = 0, \
161 .max_power = 30, \
162 }
163
164 static struct ieee80211_channel __wl_2ghz_channels[] = {
165 CHAN2G(1, 2412), CHAN2G(2, 2417), CHAN2G(3, 2422), CHAN2G(4, 2427),
166 CHAN2G(5, 2432), CHAN2G(6, 2437), CHAN2G(7, 2442), CHAN2G(8, 2447),
167 CHAN2G(9, 2452), CHAN2G(10, 2457), CHAN2G(11, 2462), CHAN2G(12, 2467),
168 CHAN2G(13, 2472), CHAN2G(14, 2484)
169 };
170
171 static struct ieee80211_channel __wl_5ghz_channels[] = {
172 CHAN5G(34), CHAN5G(36), CHAN5G(38), CHAN5G(40), CHAN5G(42),
173 CHAN5G(44), CHAN5G(46), CHAN5G(48), CHAN5G(52), CHAN5G(56),
174 CHAN5G(60), CHAN5G(64), CHAN5G(100), CHAN5G(104), CHAN5G(108),
175 CHAN5G(112), CHAN5G(116), CHAN5G(120), CHAN5G(124), CHAN5G(128),
176 CHAN5G(132), CHAN5G(136), CHAN5G(140), CHAN5G(144), CHAN5G(149),
177 CHAN5G(153), CHAN5G(157), CHAN5G(161), CHAN5G(165)
178 };
179
180 /* Band templates duplicated per wiphy. The channel info
181 * above is added to the band during setup.
182 */
183 static const struct ieee80211_supported_band __wl_band_2ghz = {
184 .band = NL80211_BAND_2GHZ,
185 .bitrates = wl_g_rates,
186 .n_bitrates = wl_g_rates_size,
187 };
188
189 static const struct ieee80211_supported_band __wl_band_5ghz = {
190 .band = NL80211_BAND_5GHZ,
191 .bitrates = wl_a_rates,
192 .n_bitrates = wl_a_rates_size,
193 };
194
195 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
196 * By default world regulatory domain defined in reg.c puts the flags
197 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
198 * With respect to these flags, wpa_supplicant doesn't * start p2p
199 * operations on 5GHz channels. All the changes in world regulatory
200 * domain are to be done here.
201 */
202 static const struct ieee80211_regdomain brcmf_regdom = {
203 .n_reg_rules = 4,
204 .alpha2 = "99",
205 .reg_rules = {
206 /* IEEE 802.11b/g, channels 1..11 */
207 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
208 /* If any */
209 /* IEEE 802.11 channel 14 - Only JP enables
210 * this and for 802.11b only
211 */
212 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
213 /* IEEE 802.11a, channel 36..64 */
214 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
215 /* IEEE 802.11a, channel 100..165 */
216 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
217 };
218
219 /* Note: brcmf_cipher_suites is an array of int defining which cipher suites
220 * are supported. A pointer to this array and the number of entries is passed
221 * on to upper layers. AES_CMAC defines whether or not the driver supports MFP.
222 * So the cipher suite AES_CMAC has to be the last one in the array, and when
223 * device does not support MFP then the number of suites will be decreased by 1
224 */
225 static const u32 brcmf_cipher_suites[] = {
226 WLAN_CIPHER_SUITE_WEP40,
227 WLAN_CIPHER_SUITE_WEP104,
228 WLAN_CIPHER_SUITE_TKIP,
229 WLAN_CIPHER_SUITE_CCMP,
230 /* Keep as last entry: */
231 WLAN_CIPHER_SUITE_AES_CMAC
232 };
233
234 /* Vendor specific ie. id = 221, oui and type defines exact ie */
235 struct brcmf_vs_tlv {
236 u8 id;
237 u8 len;
238 u8 oui[3];
239 u8 oui_type;
240 };
241
242 struct parsed_vndr_ie_info {
243 u8 *ie_ptr;
244 u32 ie_len; /* total length including id & length field */
245 struct brcmf_vs_tlv vndrie;
246 };
247
248 struct parsed_vndr_ies {
249 u32 count;
250 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
251 };
252
253 static u8 nl80211_band_to_fwil(enum nl80211_band band)
254 {
255 switch (band) {
256 case NL80211_BAND_2GHZ:
257 return WLC_BAND_2G;
258 case NL80211_BAND_5GHZ:
259 return WLC_BAND_5G;
260 default:
261 WARN_ON(1);
262 break;
263 }
264 return 0;
265 }
266
267 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
268 struct cfg80211_chan_def *ch)
269 {
270 struct brcmu_chan ch_inf;
271 s32 primary_offset;
272
273 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
274 ch->chan->center_freq, ch->center_freq1, ch->width);
275 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
276 primary_offset = ch->chan->center_freq - ch->center_freq1;
277 switch (ch->width) {
278 case NL80211_CHAN_WIDTH_20:
279 case NL80211_CHAN_WIDTH_20_NOHT:
280 ch_inf.bw = BRCMU_CHAN_BW_20;
281 WARN_ON(primary_offset != 0);
282 break;
283 case NL80211_CHAN_WIDTH_40:
284 ch_inf.bw = BRCMU_CHAN_BW_40;
285 if (primary_offset > 0)
286 ch_inf.sb = BRCMU_CHAN_SB_U;
287 else
288 ch_inf.sb = BRCMU_CHAN_SB_L;
289 break;
290 case NL80211_CHAN_WIDTH_80:
291 ch_inf.bw = BRCMU_CHAN_BW_80;
292 if (primary_offset == -30)
293 ch_inf.sb = BRCMU_CHAN_SB_LL;
294 else if (primary_offset == -10)
295 ch_inf.sb = BRCMU_CHAN_SB_LU;
296 else if (primary_offset == 10)
297 ch_inf.sb = BRCMU_CHAN_SB_UL;
298 else
299 ch_inf.sb = BRCMU_CHAN_SB_UU;
300 break;
301 case NL80211_CHAN_WIDTH_80P80:
302 case NL80211_CHAN_WIDTH_160:
303 case NL80211_CHAN_WIDTH_5:
304 case NL80211_CHAN_WIDTH_10:
305 default:
306 WARN_ON_ONCE(1);
307 }
308 switch (ch->chan->band) {
309 case NL80211_BAND_2GHZ:
310 ch_inf.band = BRCMU_CHAN_BAND_2G;
311 break;
312 case NL80211_BAND_5GHZ:
313 ch_inf.band = BRCMU_CHAN_BAND_5G;
314 break;
315 case NL80211_BAND_60GHZ:
316 default:
317 WARN_ON_ONCE(1);
318 }
319 d11inf->encchspec(&ch_inf);
320
321 return ch_inf.chspec;
322 }
323
324 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
325 struct ieee80211_channel *ch)
326 {
327 struct brcmu_chan ch_inf;
328
329 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
330 ch_inf.bw = BRCMU_CHAN_BW_20;
331 d11inf->encchspec(&ch_inf);
332
333 return ch_inf.chspec;
334 }
335
336 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
337 * triples, returning a pointer to the substring whose first element
338 * matches tag
339 */
340 const struct brcmf_tlv *
341 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
342 {
343 const struct brcmf_tlv *elt = buf;
344 int totlen = buflen;
345
346 /* find tagged parameter */
347 while (totlen >= TLV_HDR_LEN) {
348 int len = elt->len;
349
350 /* validate remaining totlen */
351 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
352 return elt;
353
354 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
355 totlen -= (len + TLV_HDR_LEN);
356 }
357
358 return NULL;
359 }
360
361 /* Is any of the tlvs the expected entry? If
362 * not update the tlvs buffer pointer/length.
363 */
364 static bool
365 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
366 const u8 *oui, u32 oui_len, u8 type)
367 {
368 /* If the contents match the OUI and the type */
369 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
370 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
371 type == ie[TLV_BODY_OFF + oui_len]) {
372 return true;
373 }
374
375 if (tlvs == NULL)
376 return false;
377 /* point to the next ie */
378 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
379 /* calculate the length of the rest of the buffer */
380 *tlvs_len -= (int)(ie - *tlvs);
381 /* update the pointer to the start of the buffer */
382 *tlvs = ie;
383
384 return false;
385 }
386
387 static struct brcmf_vs_tlv *
388 brcmf_find_wpaie(const u8 *parse, u32 len)
389 {
390 const struct brcmf_tlv *ie;
391
392 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
393 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
394 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
395 return (struct brcmf_vs_tlv *)ie;
396 }
397 return NULL;
398 }
399
400 static struct brcmf_vs_tlv *
401 brcmf_find_wpsie(const u8 *parse, u32 len)
402 {
403 const struct brcmf_tlv *ie;
404
405 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
406 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
407 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
408 return (struct brcmf_vs_tlv *)ie;
409 }
410 return NULL;
411 }
412
413 static int brcmf_vif_change_validate(struct brcmf_cfg80211_info *cfg,
414 struct brcmf_cfg80211_vif *vif,
415 enum nl80211_iftype new_type)
416 {
417 int iftype_num[NUM_NL80211_IFTYPES];
418 struct brcmf_cfg80211_vif *pos;
419 bool check_combos = false;
420 int ret = 0;
421
422 memset(&iftype_num[0], 0, sizeof(iftype_num));
423 list_for_each_entry(pos, &cfg->vif_list, list)
424 if (pos == vif) {
425 iftype_num[new_type]++;
426 } else {
427 /* concurrent interfaces so need check combinations */
428 check_combos = true;
429 iftype_num[pos->wdev.iftype]++;
430 }
431
432 if (check_combos)
433 ret = cfg80211_check_combinations(cfg->wiphy, 1, 0, iftype_num);
434
435 return ret;
436 }
437
438 static int brcmf_vif_add_validate(struct brcmf_cfg80211_info *cfg,
439 enum nl80211_iftype new_type)
440 {
441 int iftype_num[NUM_NL80211_IFTYPES];
442 struct brcmf_cfg80211_vif *pos;
443
444 memset(&iftype_num[0], 0, sizeof(iftype_num));
445 list_for_each_entry(pos, &cfg->vif_list, list)
446 iftype_num[pos->wdev.iftype]++;
447
448 iftype_num[new_type]++;
449 return cfg80211_check_combinations(cfg->wiphy, 1, 0, iftype_num);
450 }
451
452 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
453 struct brcmf_wsec_key_le *key_le)
454 {
455 key_le->index = cpu_to_le32(key->index);
456 key_le->len = cpu_to_le32(key->len);
457 key_le->algo = cpu_to_le32(key->algo);
458 key_le->flags = cpu_to_le32(key->flags);
459 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
460 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
461 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
462 memcpy(key_le->data, key->data, sizeof(key->data));
463 memcpy(key_le->ea, key->ea, sizeof(key->ea));
464 }
465
466 static int
467 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key)
468 {
469 int err;
470 struct brcmf_wsec_key_le key_le;
471
472 convert_key_from_CPU(key, &key_le);
473
474 brcmf_netdev_wait_pend8021x(ifp);
475
476 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le,
477 sizeof(key_le));
478
479 if (err)
480 brcmf_err("wsec_key error (%d)\n", err);
481 return err;
482 }
483
484 static s32
485 brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
486 {
487 s32 err;
488 u32 mode;
489
490 if (enable)
491 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
492 else
493 mode = 0;
494
495 /* Try to set and enable ARP offload feature, this may fail, then it */
496 /* is simply not supported and err 0 will be returned */
497 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
498 if (err) {
499 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
500 mode, err);
501 err = 0;
502 } else {
503 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
504 if (err) {
505 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
506 enable, err);
507 err = 0;
508 } else
509 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
510 enable, mode);
511 }
512
513 err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
514 if (err) {
515 brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
516 enable, err);
517 err = 0;
518 } else
519 brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
520 enable, mode);
521
522 return err;
523 }
524
525 static void
526 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
527 {
528 struct brcmf_cfg80211_vif *vif;
529 struct brcmf_if *ifp;
530
531 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
532 ifp = vif->ifp;
533
534 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
535 (wdev->iftype == NL80211_IFTYPE_AP) ||
536 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
537 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
538 ADDR_DIRECT);
539 else
540 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
541 ADDR_INDIRECT);
542 }
543
544 static int brcmf_get_first_free_bsscfgidx(struct brcmf_pub *drvr)
545 {
546 int bsscfgidx;
547
548 for (bsscfgidx = 0; bsscfgidx < BRCMF_MAX_IFS; bsscfgidx++) {
549 /* bsscfgidx 1 is reserved for legacy P2P */
550 if (bsscfgidx == 1)
551 continue;
552 if (!drvr->iflist[bsscfgidx])
553 return bsscfgidx;
554 }
555
556 return -ENOMEM;
557 }
558
559 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
560 {
561 struct brcmf_mbss_ssid_le mbss_ssid_le;
562 int bsscfgidx;
563 int err;
564
565 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
566 bsscfgidx = brcmf_get_first_free_bsscfgidx(ifp->drvr);
567 if (bsscfgidx < 0)
568 return bsscfgidx;
569
570 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
571 mbss_ssid_le.SSID_len = cpu_to_le32(5);
572 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
573
574 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
575 sizeof(mbss_ssid_le));
576 if (err < 0)
577 brcmf_err("setting ssid failed %d\n", err);
578
579 return err;
580 }
581
582 /**
583 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
584 *
585 * @wiphy: wiphy device of new interface.
586 * @name: name of the new interface.
587 * @flags: not used.
588 * @params: contains mac address for AP device.
589 */
590 static
591 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
592 u32 *flags, struct vif_params *params)
593 {
594 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
595 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
596 struct brcmf_cfg80211_vif *vif;
597 int err;
598
599 if (brcmf_cfg80211_vif_event_armed(cfg))
600 return ERR_PTR(-EBUSY);
601
602 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
603
604 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP);
605 if (IS_ERR(vif))
606 return (struct wireless_dev *)vif;
607
608 brcmf_cfg80211_arm_vif_event(cfg, vif);
609
610 err = brcmf_cfg80211_request_ap_if(ifp);
611 if (err) {
612 brcmf_cfg80211_arm_vif_event(cfg, NULL);
613 goto fail;
614 }
615
616 /* wait for firmware event */
617 err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD,
618 BRCMF_VIF_EVENT_TIMEOUT);
619 brcmf_cfg80211_arm_vif_event(cfg, NULL);
620 if (!err) {
621 brcmf_err("timeout occurred\n");
622 err = -EIO;
623 goto fail;
624 }
625
626 /* interface created in firmware */
627 ifp = vif->ifp;
628 if (!ifp) {
629 brcmf_err("no if pointer provided\n");
630 err = -ENOENT;
631 goto fail;
632 }
633
634 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
635 err = brcmf_net_attach(ifp, true);
636 if (err) {
637 brcmf_err("Registering netdevice failed\n");
638 goto fail;
639 }
640
641 return &ifp->vif->wdev;
642
643 fail:
644 brcmf_free_vif(vif);
645 return ERR_PTR(err);
646 }
647
648 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
649 {
650 enum nl80211_iftype iftype;
651
652 iftype = vif->wdev.iftype;
653 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
654 }
655
656 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
657 {
658 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
659 }
660
661 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
662 const char *name,
663 unsigned char name_assign_type,
664 enum nl80211_iftype type,
665 u32 *flags,
666 struct vif_params *params)
667 {
668 struct wireless_dev *wdev;
669 int err;
670
671 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
672 err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type);
673 if (err) {
674 brcmf_err("iface validation failed: err=%d\n", err);
675 return ERR_PTR(err);
676 }
677 switch (type) {
678 case NL80211_IFTYPE_ADHOC:
679 case NL80211_IFTYPE_STATION:
680 case NL80211_IFTYPE_AP_VLAN:
681 case NL80211_IFTYPE_WDS:
682 case NL80211_IFTYPE_MONITOR:
683 case NL80211_IFTYPE_MESH_POINT:
684 return ERR_PTR(-EOPNOTSUPP);
685 case NL80211_IFTYPE_AP:
686 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
687 break;
688 case NL80211_IFTYPE_P2P_CLIENT:
689 case NL80211_IFTYPE_P2P_GO:
690 case NL80211_IFTYPE_P2P_DEVICE:
691 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params);
692 break;
693 case NL80211_IFTYPE_UNSPECIFIED:
694 default:
695 return ERR_PTR(-EINVAL);
696 }
697
698 if (IS_ERR(wdev))
699 brcmf_err("add iface %s type %d failed: err=%d\n",
700 name, type, (int)PTR_ERR(wdev));
701 else
702 brcmf_cfg80211_update_proto_addr_mode(wdev);
703
704 return wdev;
705 }
706
707 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
708 {
709 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
710 brcmf_set_mpc(ifp, mpc);
711 }
712
713 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
714 {
715 s32 err = 0;
716
717 if (check_vif_up(ifp->vif)) {
718 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
719 if (err) {
720 brcmf_err("fail to set mpc\n");
721 return;
722 }
723 brcmf_dbg(INFO, "MPC : %d\n", mpc);
724 }
725 }
726
727 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
728 struct brcmf_if *ifp, bool aborted,
729 bool fw_abort)
730 {
731 struct brcmf_scan_params_le params_le;
732 struct cfg80211_scan_request *scan_request;
733 s32 err = 0;
734
735 brcmf_dbg(SCAN, "Enter\n");
736
737 /* clear scan request, because the FW abort can cause a second call */
738 /* to this functon and might cause a double cfg80211_scan_done */
739 scan_request = cfg->scan_request;
740 cfg->scan_request = NULL;
741
742 if (timer_pending(&cfg->escan_timeout))
743 del_timer_sync(&cfg->escan_timeout);
744
745 if (fw_abort) {
746 /* Do a scan abort to stop the driver's scan engine */
747 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
748 memset(&params_le, 0, sizeof(params_le));
749 eth_broadcast_addr(params_le.bssid);
750 params_le.bss_type = DOT11_BSSTYPE_ANY;
751 params_le.scan_type = 0;
752 params_le.channel_num = cpu_to_le32(1);
753 params_le.nprobes = cpu_to_le32(1);
754 params_le.active_time = cpu_to_le32(-1);
755 params_le.passive_time = cpu_to_le32(-1);
756 params_le.home_time = cpu_to_le32(-1);
757 /* Scan is aborted by setting channel_list[0] to -1 */
758 params_le.channel_list[0] = cpu_to_le16(-1);
759 /* E-Scan (or anyother type) can be aborted by SCAN */
760 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
761 &params_le, sizeof(params_le));
762 if (err)
763 brcmf_err("Scan abort failed\n");
764 }
765
766 brcmf_scan_config_mpc(ifp, 1);
767
768 /*
769 * e-scan can be initiated by scheduled scan
770 * which takes precedence.
771 */
772 if (cfg->sched_escan) {
773 brcmf_dbg(SCAN, "scheduled scan completed\n");
774 cfg->sched_escan = false;
775 if (!aborted)
776 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
777 } else if (scan_request) {
778 struct cfg80211_scan_info info = {
779 .aborted = aborted,
780 };
781
782 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
783 aborted ? "Aborted" : "Done");
784 cfg80211_scan_done(scan_request, &info);
785 }
786 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
787 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
788
789 return err;
790 }
791
792 static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy,
793 struct wireless_dev *wdev)
794 {
795 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
796 struct net_device *ndev = wdev->netdev;
797 struct brcmf_if *ifp = netdev_priv(ndev);
798 int ret;
799 int err;
800
801 brcmf_cfg80211_arm_vif_event(cfg, ifp->vif);
802
803 err = brcmf_fil_bsscfg_data_set(ifp, "interface_remove", NULL, 0);
804 if (err) {
805 brcmf_err("interface_remove failed %d\n", err);
806 goto err_unarm;
807 }
808
809 /* wait for firmware event */
810 ret = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL,
811 BRCMF_VIF_EVENT_TIMEOUT);
812 if (!ret) {
813 brcmf_err("timeout occurred\n");
814 err = -EIO;
815 goto err_unarm;
816 }
817
818 brcmf_remove_interface(ifp, true);
819
820 err_unarm:
821 brcmf_cfg80211_arm_vif_event(cfg, NULL);
822 return err;
823 }
824
825 static
826 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
827 {
828 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
829 struct net_device *ndev = wdev->netdev;
830
831 if (ndev && ndev == cfg_to_ndev(cfg))
832 return -ENOTSUPP;
833
834 /* vif event pending in firmware */
835 if (brcmf_cfg80211_vif_event_armed(cfg))
836 return -EBUSY;
837
838 if (ndev) {
839 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
840 cfg->escan_info.ifp == netdev_priv(ndev))
841 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
842 true, true);
843
844 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
845 }
846
847 switch (wdev->iftype) {
848 case NL80211_IFTYPE_ADHOC:
849 case NL80211_IFTYPE_STATION:
850 case NL80211_IFTYPE_AP_VLAN:
851 case NL80211_IFTYPE_WDS:
852 case NL80211_IFTYPE_MONITOR:
853 case NL80211_IFTYPE_MESH_POINT:
854 return -EOPNOTSUPP;
855 case NL80211_IFTYPE_AP:
856 return brcmf_cfg80211_del_ap_iface(wiphy, wdev);
857 case NL80211_IFTYPE_P2P_CLIENT:
858 case NL80211_IFTYPE_P2P_GO:
859 case NL80211_IFTYPE_P2P_DEVICE:
860 return brcmf_p2p_del_vif(wiphy, wdev);
861 case NL80211_IFTYPE_UNSPECIFIED:
862 default:
863 return -EINVAL;
864 }
865 return -EOPNOTSUPP;
866 }
867
868 static s32
869 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
870 enum nl80211_iftype type, u32 *flags,
871 struct vif_params *params)
872 {
873 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
874 struct brcmf_if *ifp = netdev_priv(ndev);
875 struct brcmf_cfg80211_vif *vif = ifp->vif;
876 s32 infra = 0;
877 s32 ap = 0;
878 s32 err = 0;
879
880 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, type=%d\n", ifp->bsscfgidx,
881 type);
882
883 /* WAR: There are a number of p2p interface related problems which
884 * need to be handled initially (before doing the validate).
885 * wpa_supplicant tends to do iface changes on p2p device/client/go
886 * which are not always possible/allowed. However we need to return
887 * OK otherwise the wpa_supplicant wont start. The situation differs
888 * on configuration and setup (p2pon=1 module param). The first check
889 * is to see if the request is a change to station for p2p iface.
890 */
891 if ((type == NL80211_IFTYPE_STATION) &&
892 ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
893 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) ||
894 (vif->wdev.iftype == NL80211_IFTYPE_P2P_DEVICE))) {
895 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
896 /* Now depending on whether module param p2pon=1 was used the
897 * response needs to be either 0 or EOPNOTSUPP. The reason is
898 * that if p2pon=1 is used, but a newer supplicant is used then
899 * we should return an error, as this combination wont work.
900 * In other situations 0 is returned and supplicant will start
901 * normally. It will give a trace in cfg80211, but it is the
902 * only way to get it working. Unfortunately this will result
903 * in situation where we wont support new supplicant in
904 * combination with module param p2pon=1, but that is the way
905 * it is. If the user tries this then unloading of driver might
906 * fail/lock.
907 */
908 if (cfg->p2p.p2pdev_dynamically)
909 return -EOPNOTSUPP;
910 else
911 return 0;
912 }
913 err = brcmf_vif_change_validate(wiphy_to_cfg(wiphy), vif, type);
914 if (err) {
915 brcmf_err("iface validation failed: err=%d\n", err);
916 return err;
917 }
918 switch (type) {
919 case NL80211_IFTYPE_MONITOR:
920 case NL80211_IFTYPE_WDS:
921 brcmf_err("type (%d) : currently we do not support this type\n",
922 type);
923 return -EOPNOTSUPP;
924 case NL80211_IFTYPE_ADHOC:
925 infra = 0;
926 break;
927 case NL80211_IFTYPE_STATION:
928 infra = 1;
929 break;
930 case NL80211_IFTYPE_AP:
931 case NL80211_IFTYPE_P2P_GO:
932 ap = 1;
933 break;
934 default:
935 err = -EINVAL;
936 goto done;
937 }
938
939 if (ap) {
940 if (type == NL80211_IFTYPE_P2P_GO) {
941 brcmf_dbg(INFO, "IF Type = P2P GO\n");
942 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
943 }
944 if (!err) {
945 brcmf_dbg(INFO, "IF Type = AP\n");
946 }
947 } else {
948 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
949 if (err) {
950 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
951 err = -EAGAIN;
952 goto done;
953 }
954 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
955 "Adhoc" : "Infra");
956 }
957 ndev->ieee80211_ptr->iftype = type;
958
959 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
960
961 done:
962 brcmf_dbg(TRACE, "Exit\n");
963
964 return err;
965 }
966
967 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
968 struct brcmf_scan_params_le *params_le,
969 struct cfg80211_scan_request *request)
970 {
971 u32 n_ssids;
972 u32 n_channels;
973 s32 i;
974 s32 offset;
975 u16 chanspec;
976 char *ptr;
977 struct brcmf_ssid_le ssid_le;
978
979 eth_broadcast_addr(params_le->bssid);
980 params_le->bss_type = DOT11_BSSTYPE_ANY;
981 params_le->scan_type = 0;
982 params_le->channel_num = 0;
983 params_le->nprobes = cpu_to_le32(-1);
984 params_le->active_time = cpu_to_le32(-1);
985 params_le->passive_time = cpu_to_le32(-1);
986 params_le->home_time = cpu_to_le32(-1);
987 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
988
989 /* if request is null exit so it will be all channel broadcast scan */
990 if (!request)
991 return;
992
993 n_ssids = request->n_ssids;
994 n_channels = request->n_channels;
995 /* Copy channel array if applicable */
996 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
997 n_channels);
998 if (n_channels > 0) {
999 for (i = 0; i < n_channels; i++) {
1000 chanspec = channel_to_chanspec(&cfg->d11inf,
1001 request->channels[i]);
1002 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
1003 request->channels[i]->hw_value, chanspec);
1004 params_le->channel_list[i] = cpu_to_le16(chanspec);
1005 }
1006 } else {
1007 brcmf_dbg(SCAN, "Scanning all channels\n");
1008 }
1009 /* Copy ssid array if applicable */
1010 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
1011 if (n_ssids > 0) {
1012 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
1013 n_channels * sizeof(u16);
1014 offset = roundup(offset, sizeof(u32));
1015 ptr = (char *)params_le + offset;
1016 for (i = 0; i < n_ssids; i++) {
1017 memset(&ssid_le, 0, sizeof(ssid_le));
1018 ssid_le.SSID_len =
1019 cpu_to_le32(request->ssids[i].ssid_len);
1020 memcpy(ssid_le.SSID, request->ssids[i].ssid,
1021 request->ssids[i].ssid_len);
1022 if (!ssid_le.SSID_len)
1023 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
1024 else
1025 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
1026 i, ssid_le.SSID, ssid_le.SSID_len);
1027 memcpy(ptr, &ssid_le, sizeof(ssid_le));
1028 ptr += sizeof(ssid_le);
1029 }
1030 } else {
1031 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
1032 if ((request->ssids) && request->ssids->ssid_len) {
1033 brcmf_dbg(SCAN, "SSID %s len=%d\n",
1034 params_le->ssid_le.SSID,
1035 request->ssids->ssid_len);
1036 params_le->ssid_le.SSID_len =
1037 cpu_to_le32(request->ssids->ssid_len);
1038 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
1039 request->ssids->ssid_len);
1040 }
1041 }
1042 /* Adding mask to channel numbers */
1043 params_le->channel_num =
1044 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
1045 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
1046 }
1047
1048 static s32
1049 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
1050 struct cfg80211_scan_request *request)
1051 {
1052 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
1053 offsetof(struct brcmf_escan_params_le, params_le);
1054 struct brcmf_escan_params_le *params;
1055 s32 err = 0;
1056
1057 brcmf_dbg(SCAN, "E-SCAN START\n");
1058
1059 if (request != NULL) {
1060 /* Allocate space for populating ssids in struct */
1061 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
1062
1063 /* Allocate space for populating ssids in struct */
1064 params_size += sizeof(struct brcmf_ssid_le) * request->n_ssids;
1065 }
1066
1067 params = kzalloc(params_size, GFP_KERNEL);
1068 if (!params) {
1069 err = -ENOMEM;
1070 goto exit;
1071 }
1072 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
1073 brcmf_escan_prep(cfg, &params->params_le, request);
1074 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
1075 params->action = cpu_to_le16(WL_ESCAN_ACTION_START);
1076 params->sync_id = cpu_to_le16(0x1234);
1077
1078 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
1079 if (err) {
1080 if (err == -EBUSY)
1081 brcmf_dbg(INFO, "system busy : escan canceled\n");
1082 else
1083 brcmf_err("error (%d)\n", err);
1084 }
1085
1086 kfree(params);
1087 exit:
1088 return err;
1089 }
1090
1091 static s32
1092 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
1093 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
1094 {
1095 s32 err;
1096 u32 passive_scan;
1097 struct brcmf_scan_results *results;
1098 struct escan_info *escan = &cfg->escan_info;
1099
1100 brcmf_dbg(SCAN, "Enter\n");
1101 escan->ifp = ifp;
1102 escan->wiphy = wiphy;
1103 escan->escan_state = WL_ESCAN_STATE_SCANNING;
1104 passive_scan = cfg->active_scan ? 0 : 1;
1105 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1106 passive_scan);
1107 if (err) {
1108 brcmf_err("error (%d)\n", err);
1109 return err;
1110 }
1111 brcmf_scan_config_mpc(ifp, 0);
1112 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1113 results->version = 0;
1114 results->count = 0;
1115 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1116
1117 err = escan->run(cfg, ifp, request);
1118 if (err)
1119 brcmf_scan_config_mpc(ifp, 1);
1120 return err;
1121 }
1122
1123 static s32
1124 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1125 struct cfg80211_scan_request *request,
1126 struct cfg80211_ssid *this_ssid)
1127 {
1128 struct brcmf_if *ifp = vif->ifp;
1129 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1130 struct cfg80211_ssid *ssids;
1131 u32 passive_scan;
1132 bool escan_req;
1133 bool spec_scan;
1134 s32 err;
1135 struct brcmf_ssid_le ssid_le;
1136 u32 SSID_len;
1137
1138 brcmf_dbg(SCAN, "START ESCAN\n");
1139
1140 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1141 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1142 return -EAGAIN;
1143 }
1144 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1145 brcmf_err("Scanning being aborted: status (%lu)\n",
1146 cfg->scan_status);
1147 return -EAGAIN;
1148 }
1149 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1150 brcmf_err("Scanning suppressed: status (%lu)\n",
1151 cfg->scan_status);
1152 return -EAGAIN;
1153 }
1154 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1155 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1156 return -EAGAIN;
1157 }
1158
1159 /* If scan req comes for p2p0, send it over primary I/F */
1160 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1161 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1162
1163 escan_req = false;
1164 if (request) {
1165 /* scan bss */
1166 ssids = request->ssids;
1167 escan_req = true;
1168 } else {
1169 /* scan in ibss */
1170 /* we don't do escan in ibss */
1171 ssids = this_ssid;
1172 }
1173
1174 cfg->scan_request = request;
1175 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1176 if (escan_req) {
1177 cfg->escan_info.run = brcmf_run_escan;
1178 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1179 if (err)
1180 goto scan_out;
1181
1182 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1183 if (err)
1184 goto scan_out;
1185 } else {
1186 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1187 ssids->ssid, ssids->ssid_len);
1188 memset(&ssid_le, 0, sizeof(ssid_le));
1189 SSID_len = min_t(u8, sizeof(ssid_le.SSID), ssids->ssid_len);
1190 ssid_le.SSID_len = cpu_to_le32(0);
1191 spec_scan = false;
1192 if (SSID_len) {
1193 memcpy(ssid_le.SSID, ssids->ssid, SSID_len);
1194 ssid_le.SSID_len = cpu_to_le32(SSID_len);
1195 spec_scan = true;
1196 } else
1197 brcmf_dbg(SCAN, "Broadcast scan\n");
1198
1199 passive_scan = cfg->active_scan ? 0 : 1;
1200 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1201 passive_scan);
1202 if (err) {
1203 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1204 goto scan_out;
1205 }
1206 brcmf_scan_config_mpc(ifp, 0);
1207 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, &ssid_le,
1208 sizeof(ssid_le));
1209 if (err) {
1210 if (err == -EBUSY)
1211 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1212 ssid_le.SSID);
1213 else
1214 brcmf_err("WLC_SCAN error (%d)\n", err);
1215
1216 brcmf_scan_config_mpc(ifp, 1);
1217 goto scan_out;
1218 }
1219 }
1220
1221 /* Arm scan timeout timer */
1222 mod_timer(&cfg->escan_timeout, jiffies +
1223 BRCMF_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1224
1225 return 0;
1226
1227 scan_out:
1228 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1229 cfg->scan_request = NULL;
1230 return err;
1231 }
1232
1233 static s32
1234 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1235 {
1236 struct brcmf_cfg80211_vif *vif;
1237 s32 err = 0;
1238
1239 brcmf_dbg(TRACE, "Enter\n");
1240 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1241 if (!check_vif_up(vif))
1242 return -EIO;
1243
1244 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1245
1246 if (err)
1247 brcmf_err("scan error (%d)\n", err);
1248
1249 brcmf_dbg(TRACE, "Exit\n");
1250 return err;
1251 }
1252
1253 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1254 {
1255 s32 err = 0;
1256
1257 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1258 rts_threshold);
1259 if (err)
1260 brcmf_err("Error (%d)\n", err);
1261
1262 return err;
1263 }
1264
1265 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1266 {
1267 s32 err = 0;
1268
1269 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1270 frag_threshold);
1271 if (err)
1272 brcmf_err("Error (%d)\n", err);
1273
1274 return err;
1275 }
1276
1277 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1278 {
1279 s32 err = 0;
1280 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1281
1282 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1283 if (err) {
1284 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1285 return err;
1286 }
1287 return err;
1288 }
1289
1290 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1291 {
1292 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1293 struct net_device *ndev = cfg_to_ndev(cfg);
1294 struct brcmf_if *ifp = netdev_priv(ndev);
1295 s32 err = 0;
1296
1297 brcmf_dbg(TRACE, "Enter\n");
1298 if (!check_vif_up(ifp->vif))
1299 return -EIO;
1300
1301 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1302 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1303 cfg->conf->rts_threshold = wiphy->rts_threshold;
1304 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1305 if (!err)
1306 goto done;
1307 }
1308 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1309 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1310 cfg->conf->frag_threshold = wiphy->frag_threshold;
1311 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1312 if (!err)
1313 goto done;
1314 }
1315 if (changed & WIPHY_PARAM_RETRY_LONG
1316 && (cfg->conf->retry_long != wiphy->retry_long)) {
1317 cfg->conf->retry_long = wiphy->retry_long;
1318 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1319 if (!err)
1320 goto done;
1321 }
1322 if (changed & WIPHY_PARAM_RETRY_SHORT
1323 && (cfg->conf->retry_short != wiphy->retry_short)) {
1324 cfg->conf->retry_short = wiphy->retry_short;
1325 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1326 if (!err)
1327 goto done;
1328 }
1329
1330 done:
1331 brcmf_dbg(TRACE, "Exit\n");
1332 return err;
1333 }
1334
1335 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1336 {
1337 memset(prof, 0, sizeof(*prof));
1338 }
1339
1340 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
1341 {
1342 u16 reason;
1343
1344 switch (e->event_code) {
1345 case BRCMF_E_DEAUTH:
1346 case BRCMF_E_DEAUTH_IND:
1347 case BRCMF_E_DISASSOC_IND:
1348 reason = e->reason;
1349 break;
1350 case BRCMF_E_LINK:
1351 default:
1352 reason = 0;
1353 break;
1354 }
1355 return reason;
1356 }
1357
1358 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
1359 {
1360 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1361 s32 err = 0;
1362
1363 brcmf_dbg(TRACE, "Enter\n");
1364
1365 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1366 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1367 err = brcmf_fil_cmd_data_set(vif->ifp,
1368 BRCMF_C_DISASSOC, NULL, 0);
1369 if (err) {
1370 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1371 }
1372 if ((vif->wdev.iftype == NL80211_IFTYPE_STATION) ||
1373 (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT))
1374 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
1375 true, GFP_KERNEL);
1376 }
1377 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1378 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1379 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1380 brcmf_dbg(TRACE, "Exit\n");
1381 }
1382
1383 static s32
1384 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1385 struct cfg80211_ibss_params *params)
1386 {
1387 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1388 struct brcmf_if *ifp = netdev_priv(ndev);
1389 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1390 struct brcmf_join_params join_params;
1391 size_t join_params_size = 0;
1392 s32 err = 0;
1393 s32 wsec = 0;
1394 s32 bcnprd;
1395 u16 chanspec;
1396 u32 ssid_len;
1397
1398 brcmf_dbg(TRACE, "Enter\n");
1399 if (!check_vif_up(ifp->vif))
1400 return -EIO;
1401
1402 if (params->ssid)
1403 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1404 else {
1405 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1406 return -EOPNOTSUPP;
1407 }
1408
1409 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1410
1411 if (params->bssid)
1412 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1413 else
1414 brcmf_dbg(CONN, "No BSSID specified\n");
1415
1416 if (params->chandef.chan)
1417 brcmf_dbg(CONN, "channel: %d\n",
1418 params->chandef.chan->center_freq);
1419 else
1420 brcmf_dbg(CONN, "no channel specified\n");
1421
1422 if (params->channel_fixed)
1423 brcmf_dbg(CONN, "fixed channel required\n");
1424 else
1425 brcmf_dbg(CONN, "no fixed channel required\n");
1426
1427 if (params->ie && params->ie_len)
1428 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1429 else
1430 brcmf_dbg(CONN, "no ie specified\n");
1431
1432 if (params->beacon_interval)
1433 brcmf_dbg(CONN, "beacon interval: %d\n",
1434 params->beacon_interval);
1435 else
1436 brcmf_dbg(CONN, "no beacon interval specified\n");
1437
1438 if (params->basic_rates)
1439 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1440 else
1441 brcmf_dbg(CONN, "no basic rates specified\n");
1442
1443 if (params->privacy)
1444 brcmf_dbg(CONN, "privacy required\n");
1445 else
1446 brcmf_dbg(CONN, "no privacy required\n");
1447
1448 /* Configure Privacy for starter */
1449 if (params->privacy)
1450 wsec |= WEP_ENABLED;
1451
1452 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1453 if (err) {
1454 brcmf_err("wsec failed (%d)\n", err);
1455 goto done;
1456 }
1457
1458 /* Configure Beacon Interval for starter */
1459 if (params->beacon_interval)
1460 bcnprd = params->beacon_interval;
1461 else
1462 bcnprd = 100;
1463
1464 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1465 if (err) {
1466 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1467 goto done;
1468 }
1469
1470 /* Configure required join parameter */
1471 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1472
1473 /* SSID */
1474 ssid_len = min_t(u32, params->ssid_len, IEEE80211_MAX_SSID_LEN);
1475 memcpy(join_params.ssid_le.SSID, params->ssid, ssid_len);
1476 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len);
1477 join_params_size = sizeof(join_params.ssid_le);
1478
1479 /* BSSID */
1480 if (params->bssid) {
1481 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1482 join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1483 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1484 } else {
1485 eth_broadcast_addr(join_params.params_le.bssid);
1486 eth_zero_addr(profile->bssid);
1487 }
1488
1489 /* Channel */
1490 if (params->chandef.chan) {
1491 u32 target_channel;
1492
1493 cfg->channel =
1494 ieee80211_frequency_to_channel(
1495 params->chandef.chan->center_freq);
1496 if (params->channel_fixed) {
1497 /* adding chanspec */
1498 chanspec = chandef_to_chanspec(&cfg->d11inf,
1499 &params->chandef);
1500 join_params.params_le.chanspec_list[0] =
1501 cpu_to_le16(chanspec);
1502 join_params.params_le.chanspec_num = cpu_to_le32(1);
1503 join_params_size += sizeof(join_params.params_le);
1504 }
1505
1506 /* set channel for starter */
1507 target_channel = cfg->channel;
1508 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1509 target_channel);
1510 if (err) {
1511 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1512 goto done;
1513 }
1514 } else
1515 cfg->channel = 0;
1516
1517 cfg->ibss_starter = false;
1518
1519
1520 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1521 &join_params, join_params_size);
1522 if (err) {
1523 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1524 goto done;
1525 }
1526
1527 done:
1528 if (err)
1529 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1530 brcmf_dbg(TRACE, "Exit\n");
1531 return err;
1532 }
1533
1534 static s32
1535 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1536 {
1537 struct brcmf_if *ifp = netdev_priv(ndev);
1538
1539 brcmf_dbg(TRACE, "Enter\n");
1540 if (!check_vif_up(ifp->vif)) {
1541 /* When driver is being unloaded, it can end up here. If an
1542 * error is returned then later on a debug trace in the wireless
1543 * core module will be printed. To avoid this 0 is returned.
1544 */
1545 return 0;
1546 }
1547
1548 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
1549 brcmf_net_setcarrier(ifp, false);
1550
1551 brcmf_dbg(TRACE, "Exit\n");
1552
1553 return 0;
1554 }
1555
1556 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1557 struct cfg80211_connect_params *sme)
1558 {
1559 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1560 struct brcmf_cfg80211_security *sec;
1561 s32 val = 0;
1562 s32 err = 0;
1563
1564 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1565 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1566 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1567 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1568 else
1569 val = WPA_AUTH_DISABLED;
1570 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1571 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1572 if (err) {
1573 brcmf_err("set wpa_auth failed (%d)\n", err);
1574 return err;
1575 }
1576 sec = &profile->sec;
1577 sec->wpa_versions = sme->crypto.wpa_versions;
1578 return err;
1579 }
1580
1581 static s32 brcmf_set_auth_type(struct net_device *ndev,
1582 struct cfg80211_connect_params *sme)
1583 {
1584 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1585 struct brcmf_cfg80211_security *sec;
1586 s32 val = 0;
1587 s32 err = 0;
1588
1589 switch (sme->auth_type) {
1590 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1591 val = 0;
1592 brcmf_dbg(CONN, "open system\n");
1593 break;
1594 case NL80211_AUTHTYPE_SHARED_KEY:
1595 val = 1;
1596 brcmf_dbg(CONN, "shared key\n");
1597 break;
1598 case NL80211_AUTHTYPE_AUTOMATIC:
1599 val = 2;
1600 brcmf_dbg(CONN, "automatic\n");
1601 break;
1602 case NL80211_AUTHTYPE_NETWORK_EAP:
1603 brcmf_dbg(CONN, "network eap\n");
1604 default:
1605 val = 2;
1606 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1607 break;
1608 }
1609
1610 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1611 if (err) {
1612 brcmf_err("set auth failed (%d)\n", err);
1613 return err;
1614 }
1615 sec = &profile->sec;
1616 sec->auth_type = sme->auth_type;
1617 return err;
1618 }
1619
1620 static s32
1621 brcmf_set_wsec_mode(struct net_device *ndev,
1622 struct cfg80211_connect_params *sme)
1623 {
1624 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1625 struct brcmf_cfg80211_security *sec;
1626 s32 pval = 0;
1627 s32 gval = 0;
1628 s32 wsec;
1629 s32 err = 0;
1630
1631 if (sme->crypto.n_ciphers_pairwise) {
1632 switch (sme->crypto.ciphers_pairwise[0]) {
1633 case WLAN_CIPHER_SUITE_WEP40:
1634 case WLAN_CIPHER_SUITE_WEP104:
1635 pval = WEP_ENABLED;
1636 break;
1637 case WLAN_CIPHER_SUITE_TKIP:
1638 pval = TKIP_ENABLED;
1639 break;
1640 case WLAN_CIPHER_SUITE_CCMP:
1641 pval = AES_ENABLED;
1642 break;
1643 case WLAN_CIPHER_SUITE_AES_CMAC:
1644 pval = AES_ENABLED;
1645 break;
1646 default:
1647 brcmf_err("invalid cipher pairwise (%d)\n",
1648 sme->crypto.ciphers_pairwise[0]);
1649 return -EINVAL;
1650 }
1651 }
1652 if (sme->crypto.cipher_group) {
1653 switch (sme->crypto.cipher_group) {
1654 case WLAN_CIPHER_SUITE_WEP40:
1655 case WLAN_CIPHER_SUITE_WEP104:
1656 gval = WEP_ENABLED;
1657 break;
1658 case WLAN_CIPHER_SUITE_TKIP:
1659 gval = TKIP_ENABLED;
1660 break;
1661 case WLAN_CIPHER_SUITE_CCMP:
1662 gval = AES_ENABLED;
1663 break;
1664 case WLAN_CIPHER_SUITE_AES_CMAC:
1665 gval = AES_ENABLED;
1666 break;
1667 default:
1668 brcmf_err("invalid cipher group (%d)\n",
1669 sme->crypto.cipher_group);
1670 return -EINVAL;
1671 }
1672 }
1673
1674 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1675 /* In case of privacy, but no security and WPS then simulate */
1676 /* setting AES. WPS-2.0 allows no security */
1677 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1678 sme->privacy)
1679 pval = AES_ENABLED;
1680
1681 wsec = pval | gval;
1682 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1683 if (err) {
1684 brcmf_err("error (%d)\n", err);
1685 return err;
1686 }
1687
1688 sec = &profile->sec;
1689 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1690 sec->cipher_group = sme->crypto.cipher_group;
1691
1692 return err;
1693 }
1694
1695 static s32
1696 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1697 {
1698 struct brcmf_if *ifp = netdev_priv(ndev);
1699 s32 val;
1700 s32 err;
1701 const struct brcmf_tlv *rsn_ie;
1702 const u8 *ie;
1703 u32 ie_len;
1704 u32 offset;
1705 u16 rsn_cap;
1706 u32 mfp;
1707 u16 count;
1708
1709 if (!sme->crypto.n_akm_suites)
1710 return 0;
1711
1712 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev), "wpa_auth", &val);
1713 if (err) {
1714 brcmf_err("could not get wpa_auth (%d)\n", err);
1715 return err;
1716 }
1717 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1718 switch (sme->crypto.akm_suites[0]) {
1719 case WLAN_AKM_SUITE_8021X:
1720 val = WPA_AUTH_UNSPECIFIED;
1721 break;
1722 case WLAN_AKM_SUITE_PSK:
1723 val = WPA_AUTH_PSK;
1724 break;
1725 default:
1726 brcmf_err("invalid cipher group (%d)\n",
1727 sme->crypto.cipher_group);
1728 return -EINVAL;
1729 }
1730 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1731 switch (sme->crypto.akm_suites[0]) {
1732 case WLAN_AKM_SUITE_8021X:
1733 val = WPA2_AUTH_UNSPECIFIED;
1734 break;
1735 case WLAN_AKM_SUITE_8021X_SHA256:
1736 val = WPA2_AUTH_1X_SHA256;
1737 break;
1738 case WLAN_AKM_SUITE_PSK_SHA256:
1739 val = WPA2_AUTH_PSK_SHA256;
1740 break;
1741 case WLAN_AKM_SUITE_PSK:
1742 val = WPA2_AUTH_PSK;
1743 break;
1744 default:
1745 brcmf_err("invalid cipher group (%d)\n",
1746 sme->crypto.cipher_group);
1747 return -EINVAL;
1748 }
1749 }
1750
1751 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
1752 goto skip_mfp_config;
1753 /* The MFP mode (1 or 2) needs to be determined, parse IEs. The
1754 * IE will not be verified, just a quick search for MFP config
1755 */
1756 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, sme->ie_len,
1757 WLAN_EID_RSN);
1758 if (!rsn_ie)
1759 goto skip_mfp_config;
1760 ie = (const u8 *)rsn_ie;
1761 ie_len = rsn_ie->len + TLV_HDR_LEN;
1762 /* Skip unicast suite */
1763 offset = TLV_HDR_LEN + WPA_IE_VERSION_LEN + WPA_IE_MIN_OUI_LEN;
1764 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len)
1765 goto skip_mfp_config;
1766 /* Skip multicast suite */
1767 count = ie[offset] + (ie[offset + 1] << 8);
1768 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN);
1769 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len)
1770 goto skip_mfp_config;
1771 /* Skip auth key management suite(s) */
1772 count = ie[offset] + (ie[offset + 1] << 8);
1773 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN);
1774 if (offset + WPA_IE_SUITE_COUNT_LEN > ie_len)
1775 goto skip_mfp_config;
1776 /* Ready to read capabilities */
1777 mfp = BRCMF_MFP_NONE;
1778 rsn_cap = ie[offset] + (ie[offset + 1] << 8);
1779 if (rsn_cap & RSN_CAP_MFPR_MASK)
1780 mfp = BRCMF_MFP_REQUIRED;
1781 else if (rsn_cap & RSN_CAP_MFPC_MASK)
1782 mfp = BRCMF_MFP_CAPABLE;
1783 brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "mfp", mfp);
1784
1785 skip_mfp_config:
1786 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1787 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1788 if (err) {
1789 brcmf_err("could not set wpa_auth (%d)\n", err);
1790 return err;
1791 }
1792
1793 return err;
1794 }
1795
1796 static s32
1797 brcmf_set_sharedkey(struct net_device *ndev,
1798 struct cfg80211_connect_params *sme)
1799 {
1800 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1801 struct brcmf_cfg80211_security *sec;
1802 struct brcmf_wsec_key key;
1803 s32 val;
1804 s32 err = 0;
1805
1806 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1807
1808 if (sme->key_len == 0)
1809 return 0;
1810
1811 sec = &profile->sec;
1812 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1813 sec->wpa_versions, sec->cipher_pairwise);
1814
1815 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1816 return 0;
1817
1818 if (!(sec->cipher_pairwise &
1819 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1820 return 0;
1821
1822 memset(&key, 0, sizeof(key));
1823 key.len = (u32) sme->key_len;
1824 key.index = (u32) sme->key_idx;
1825 if (key.len > sizeof(key.data)) {
1826 brcmf_err("Too long key length (%u)\n", key.len);
1827 return -EINVAL;
1828 }
1829 memcpy(key.data, sme->key, key.len);
1830 key.flags = BRCMF_PRIMARY_KEY;
1831 switch (sec->cipher_pairwise) {
1832 case WLAN_CIPHER_SUITE_WEP40:
1833 key.algo = CRYPTO_ALGO_WEP1;
1834 break;
1835 case WLAN_CIPHER_SUITE_WEP104:
1836 key.algo = CRYPTO_ALGO_WEP128;
1837 break;
1838 default:
1839 brcmf_err("Invalid algorithm (%d)\n",
1840 sme->crypto.ciphers_pairwise[0]);
1841 return -EINVAL;
1842 }
1843 /* Set the new key/index */
1844 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1845 key.len, key.index, key.algo);
1846 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1847 err = send_key_to_dongle(netdev_priv(ndev), &key);
1848 if (err)
1849 return err;
1850
1851 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1852 brcmf_dbg(CONN, "set auth_type to shared key\n");
1853 val = WL_AUTH_SHARED_KEY; /* shared key */
1854 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1855 if (err)
1856 brcmf_err("set auth failed (%d)\n", err);
1857 }
1858 return err;
1859 }
1860
1861 static
1862 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1863 enum nl80211_auth_type type)
1864 {
1865 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1866 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1867 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1868 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1869 }
1870 return type;
1871 }
1872
1873 static void brcmf_set_join_pref(struct brcmf_if *ifp,
1874 struct cfg80211_bss_selection *bss_select)
1875 {
1876 struct brcmf_join_pref_params join_pref_params[2];
1877 enum nl80211_band band;
1878 int err, i = 0;
1879
1880 join_pref_params[i].len = 2;
1881 join_pref_params[i].rssi_gain = 0;
1882
1883 if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF)
1884 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO);
1885
1886 switch (bss_select->behaviour) {
1887 case __NL80211_BSS_SELECT_ATTR_INVALID:
1888 brcmf_c_set_joinpref_default(ifp);
1889 return;
1890 case NL80211_BSS_SELECT_ATTR_BAND_PREF:
1891 join_pref_params[i].type = BRCMF_JOIN_PREF_BAND;
1892 band = bss_select->param.band_pref;
1893 join_pref_params[i].band = nl80211_band_to_fwil(band);
1894 i++;
1895 break;
1896 case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST:
1897 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA;
1898 band = bss_select->param.adjust.band;
1899 join_pref_params[i].band = nl80211_band_to_fwil(band);
1900 join_pref_params[i].rssi_gain = bss_select->param.adjust.delta;
1901 i++;
1902 break;
1903 case NL80211_BSS_SELECT_ATTR_RSSI:
1904 default:
1905 break;
1906 }
1907 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI;
1908 join_pref_params[i].len = 2;
1909 join_pref_params[i].rssi_gain = 0;
1910 join_pref_params[i].band = 0;
1911 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
1912 sizeof(join_pref_params));
1913 if (err)
1914 brcmf_err("Set join_pref error (%d)\n", err);
1915 }
1916
1917 static s32
1918 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1919 struct cfg80211_connect_params *sme)
1920 {
1921 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1922 struct brcmf_if *ifp = netdev_priv(ndev);
1923 struct ieee80211_channel *chan = sme->channel;
1924 struct brcmf_join_params join_params;
1925 size_t join_params_size;
1926 const struct brcmf_tlv *rsn_ie;
1927 const struct brcmf_vs_tlv *wpa_ie;
1928 const void *ie;
1929 u32 ie_len;
1930 struct brcmf_ext_join_params_le *ext_join_params;
1931 u16 chanspec;
1932 s32 err = 0;
1933 u32 ssid_len;
1934
1935 brcmf_dbg(TRACE, "Enter\n");
1936 if (!check_vif_up(ifp->vif))
1937 return -EIO;
1938
1939 if (!sme->ssid) {
1940 brcmf_err("Invalid ssid\n");
1941 return -EOPNOTSUPP;
1942 }
1943
1944 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1945 /* A normal (non P2P) connection request setup. */
1946 ie = NULL;
1947 ie_len = 0;
1948 /* find the WPA_IE */
1949 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1950 if (wpa_ie) {
1951 ie = wpa_ie;
1952 ie_len = wpa_ie->len + TLV_HDR_LEN;
1953 } else {
1954 /* find the RSN_IE */
1955 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1956 sme->ie_len,
1957 WLAN_EID_RSN);
1958 if (rsn_ie) {
1959 ie = rsn_ie;
1960 ie_len = rsn_ie->len + TLV_HDR_LEN;
1961 }
1962 }
1963 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1964 }
1965
1966 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1967 sme->ie, sme->ie_len);
1968 if (err)
1969 brcmf_err("Set Assoc REQ IE Failed\n");
1970 else
1971 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1972
1973 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1974
1975 if (chan) {
1976 cfg->channel =
1977 ieee80211_frequency_to_channel(chan->center_freq);
1978 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1979 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1980 cfg->channel, chan->center_freq, chanspec);
1981 } else {
1982 cfg->channel = 0;
1983 chanspec = 0;
1984 }
1985
1986 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1987
1988 err = brcmf_set_wpa_version(ndev, sme);
1989 if (err) {
1990 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1991 goto done;
1992 }
1993
1994 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1995 err = brcmf_set_auth_type(ndev, sme);
1996 if (err) {
1997 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1998 goto done;
1999 }
2000
2001 err = brcmf_set_wsec_mode(ndev, sme);
2002 if (err) {
2003 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
2004 goto done;
2005 }
2006
2007 err = brcmf_set_key_mgmt(ndev, sme);
2008 if (err) {
2009 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
2010 goto done;
2011 }
2012
2013 err = brcmf_set_sharedkey(ndev, sme);
2014 if (err) {
2015 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
2016 goto done;
2017 }
2018
2019 /* Join with specific BSSID and cached SSID
2020 * If SSID is zero join based on BSSID only
2021 */
2022 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
2023 offsetof(struct brcmf_assoc_params_le, chanspec_list);
2024 if (cfg->channel)
2025 join_params_size += sizeof(u16);
2026 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
2027 if (ext_join_params == NULL) {
2028 err = -ENOMEM;
2029 goto done;
2030 }
2031 ssid_len = min_t(u32, sme->ssid_len, IEEE80211_MAX_SSID_LEN);
2032 ext_join_params->ssid_le.SSID_len = cpu_to_le32(ssid_len);
2033 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, ssid_len);
2034 if (ssid_len < IEEE80211_MAX_SSID_LEN)
2035 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n",
2036 ext_join_params->ssid_le.SSID, ssid_len);
2037
2038 /* Set up join scan parameters */
2039 ext_join_params->scan_le.scan_type = -1;
2040 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
2041
2042 if (sme->bssid)
2043 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
2044 else
2045 eth_broadcast_addr(ext_join_params->assoc_le.bssid);
2046
2047 if (cfg->channel) {
2048 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
2049
2050 ext_join_params->assoc_le.chanspec_list[0] =
2051 cpu_to_le16(chanspec);
2052 /* Increase dwell time to receive probe response or detect
2053 * beacon from target AP at a noisy air only during connect
2054 * command.
2055 */
2056 ext_join_params->scan_le.active_time =
2057 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
2058 ext_join_params->scan_le.passive_time =
2059 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
2060 /* To sync with presence period of VSDB GO send probe request
2061 * more frequently. Probe request will be stopped when it gets
2062 * probe response from target AP/GO.
2063 */
2064 ext_join_params->scan_le.nprobes =
2065 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
2066 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
2067 } else {
2068 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
2069 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
2070 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
2071 }
2072
2073 brcmf_set_join_pref(ifp, &sme->bss_select);
2074
2075 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
2076 join_params_size);
2077 kfree(ext_join_params);
2078 if (!err)
2079 /* This is it. join command worked, we are done */
2080 goto done;
2081
2082 /* join command failed, fallback to set ssid */
2083 memset(&join_params, 0, sizeof(join_params));
2084 join_params_size = sizeof(join_params.ssid_le);
2085
2086 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid_len);
2087 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len);
2088
2089 if (sme->bssid)
2090 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
2091 else
2092 eth_broadcast_addr(join_params.params_le.bssid);
2093
2094 if (cfg->channel) {
2095 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
2096 join_params.params_le.chanspec_num = cpu_to_le32(1);
2097 join_params_size += sizeof(join_params.params_le);
2098 }
2099 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
2100 &join_params, join_params_size);
2101 if (err)
2102 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
2103
2104 done:
2105 if (err)
2106 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
2107 brcmf_dbg(TRACE, "Exit\n");
2108 return err;
2109 }
2110
2111 static s32
2112 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
2113 u16 reason_code)
2114 {
2115 struct brcmf_if *ifp = netdev_priv(ndev);
2116 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2117 struct brcmf_scb_val_le scbval;
2118 s32 err = 0;
2119
2120 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
2121 if (!check_vif_up(ifp->vif))
2122 return -EIO;
2123
2124 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
2125 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
2126 cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL);
2127
2128 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
2129 scbval.val = cpu_to_le32(reason_code);
2130 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
2131 &scbval, sizeof(scbval));
2132 if (err)
2133 brcmf_err("error (%d)\n", err);
2134
2135 brcmf_dbg(TRACE, "Exit\n");
2136 return err;
2137 }
2138
2139 static s32
2140 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
2141 enum nl80211_tx_power_setting type, s32 mbm)
2142 {
2143 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2144 struct net_device *ndev = cfg_to_ndev(cfg);
2145 struct brcmf_if *ifp = netdev_priv(ndev);
2146 s32 err;
2147 s32 disable;
2148 u32 qdbm = 127;
2149
2150 brcmf_dbg(TRACE, "Enter %d %d\n", type, mbm);
2151 if (!check_vif_up(ifp->vif))
2152 return -EIO;
2153
2154 switch (type) {
2155 case NL80211_TX_POWER_AUTOMATIC:
2156 break;
2157 case NL80211_TX_POWER_LIMITED:
2158 case NL80211_TX_POWER_FIXED:
2159 if (mbm < 0) {
2160 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
2161 err = -EINVAL;
2162 goto done;
2163 }
2164 qdbm = MBM_TO_DBM(4 * mbm);
2165 if (qdbm > 127)
2166 qdbm = 127;
2167 qdbm |= WL_TXPWR_OVERRIDE;
2168 break;
2169 default:
2170 brcmf_err("Unsupported type %d\n", type);
2171 err = -EINVAL;
2172 goto done;
2173 }
2174 /* Make sure radio is off or on as far as software is concerned */
2175 disable = WL_RADIO_SW_DISABLE << 16;
2176 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
2177 if (err)
2178 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
2179
2180 err = brcmf_fil_iovar_int_set(ifp, "qtxpower", qdbm);
2181 if (err)
2182 brcmf_err("qtxpower error (%d)\n", err);
2183
2184 done:
2185 brcmf_dbg(TRACE, "Exit %d (qdbm)\n", qdbm & ~WL_TXPWR_OVERRIDE);
2186 return err;
2187 }
2188
2189 static s32
2190 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
2191 s32 *dbm)
2192 {
2193 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2194 struct net_device *ndev = cfg_to_ndev(cfg);
2195 struct brcmf_if *ifp = netdev_priv(ndev);
2196 s32 qdbm = 0;
2197 s32 err;
2198
2199 brcmf_dbg(TRACE, "Enter\n");
2200 if (!check_vif_up(ifp->vif))
2201 return -EIO;
2202
2203 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &qdbm);
2204 if (err) {
2205 brcmf_err("error (%d)\n", err);
2206 goto done;
2207 }
2208 *dbm = (qdbm & ~WL_TXPWR_OVERRIDE) / 4;
2209
2210 done:
2211 brcmf_dbg(TRACE, "Exit (0x%x %d)\n", qdbm, *dbm);
2212 return err;
2213 }
2214
2215 static s32
2216 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2217 u8 key_idx, bool unicast, bool multicast)
2218 {
2219 struct brcmf_if *ifp = netdev_priv(ndev);
2220 u32 index;
2221 u32 wsec;
2222 s32 err = 0;
2223
2224 brcmf_dbg(TRACE, "Enter\n");
2225 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2226 if (!check_vif_up(ifp->vif))
2227 return -EIO;
2228
2229 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2230 if (err) {
2231 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2232 goto done;
2233 }
2234
2235 if (wsec & WEP_ENABLED) {
2236 /* Just select a new current key */
2237 index = key_idx;
2238 err = brcmf_fil_cmd_int_set(ifp,
2239 BRCMF_C_SET_KEY_PRIMARY, index);
2240 if (err)
2241 brcmf_err("error (%d)\n", err);
2242 }
2243 done:
2244 brcmf_dbg(TRACE, "Exit\n");
2245 return err;
2246 }
2247
2248 static s32
2249 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2250 u8 key_idx, bool pairwise, const u8 *mac_addr)
2251 {
2252 struct brcmf_if *ifp = netdev_priv(ndev);
2253 struct brcmf_wsec_key *key;
2254 s32 err;
2255
2256 brcmf_dbg(TRACE, "Enter\n");
2257 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2258
2259 if (!check_vif_up(ifp->vif))
2260 return -EIO;
2261
2262 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2263 /* we ignore this key index in this case */
2264 return -EINVAL;
2265 }
2266
2267 key = &ifp->vif->profile.key[key_idx];
2268
2269 if (key->algo == CRYPTO_ALGO_OFF) {
2270 brcmf_dbg(CONN, "Ignore clearing of (never configured) key\n");
2271 return -EINVAL;
2272 }
2273
2274 memset(key, 0, sizeof(*key));
2275 key->index = (u32)key_idx;
2276 key->flags = BRCMF_PRIMARY_KEY;
2277
2278 /* Clear the key/index */
2279 err = send_key_to_dongle(ifp, key);
2280
2281 brcmf_dbg(TRACE, "Exit\n");
2282 return err;
2283 }
2284
2285 static s32
2286 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2287 u8 key_idx, bool pairwise, const u8 *mac_addr,
2288 struct key_params *params)
2289 {
2290 struct brcmf_if *ifp = netdev_priv(ndev);
2291 struct brcmf_wsec_key *key;
2292 s32 val;
2293 s32 wsec;
2294 s32 err;
2295 u8 keybuf[8];
2296 bool ext_key;
2297
2298 brcmf_dbg(TRACE, "Enter\n");
2299 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2300 if (!check_vif_up(ifp->vif))
2301 return -EIO;
2302
2303 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2304 /* we ignore this key index in this case */
2305 brcmf_err("invalid key index (%d)\n", key_idx);
2306 return -EINVAL;
2307 }
2308
2309 if (params->key_len == 0)
2310 return brcmf_cfg80211_del_key(wiphy, ndev, key_idx, pairwise,
2311 mac_addr);
2312
2313 if (params->key_len > sizeof(key->data)) {
2314 brcmf_err("Too long key length (%u)\n", params->key_len);
2315 return -EINVAL;
2316 }
2317
2318 ext_key = false;
2319 if (mac_addr && (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2320 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2321 brcmf_dbg(TRACE, "Ext key, mac %pM", mac_addr);
2322 ext_key = true;
2323 }
2324
2325 key = &ifp->vif->profile.key[key_idx];
2326 memset(key, 0, sizeof(*key));
2327 if ((ext_key) && (!is_multicast_ether_addr(mac_addr)))
2328 memcpy((char *)&key->ea, (void *)mac_addr, ETH_ALEN);
2329 key->len = params->key_len;
2330 key->index = key_idx;
2331 memcpy(key->data, params->key, key->len);
2332 if (!ext_key)
2333 key->flags = BRCMF_PRIMARY_KEY;
2334
2335 switch (params->cipher) {
2336 case WLAN_CIPHER_SUITE_WEP40:
2337 key->algo = CRYPTO_ALGO_WEP1;
2338 val = WEP_ENABLED;
2339 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2340 break;
2341 case WLAN_CIPHER_SUITE_WEP104:
2342 key->algo = CRYPTO_ALGO_WEP128;
2343 val = WEP_ENABLED;
2344 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2345 break;
2346 case WLAN_CIPHER_SUITE_TKIP:
2347 if (!brcmf_is_apmode(ifp->vif)) {
2348 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2349 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2350 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2351 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2352 }
2353 key->algo = CRYPTO_ALGO_TKIP;
2354 val = TKIP_ENABLED;
2355 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2356 break;
2357 case WLAN_CIPHER_SUITE_AES_CMAC:
2358 key->algo = CRYPTO_ALGO_AES_CCM;
2359 val = AES_ENABLED;
2360 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2361 break;
2362 case WLAN_CIPHER_SUITE_CCMP:
2363 key->algo = CRYPTO_ALGO_AES_CCM;
2364 val = AES_ENABLED;
2365 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2366 break;
2367 default:
2368 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2369 err = -EINVAL;
2370 goto done;
2371 }
2372
2373 err = send_key_to_dongle(ifp, key);
2374 if (ext_key || err)
2375 goto done;
2376
2377 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2378 if (err) {
2379 brcmf_err("get wsec error (%d)\n", err);
2380 goto done;
2381 }
2382 wsec |= val;
2383 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2384 if (err) {
2385 brcmf_err("set wsec error (%d)\n", err);
2386 goto done;
2387 }
2388
2389 done:
2390 brcmf_dbg(TRACE, "Exit\n");
2391 return err;
2392 }
2393
2394 static s32
2395 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, u8 key_idx,
2396 bool pairwise, const u8 *mac_addr, void *cookie,
2397 void (*callback)(void *cookie,
2398 struct key_params *params))
2399 {
2400 struct key_params params;
2401 struct brcmf_if *ifp = netdev_priv(ndev);
2402 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2403 struct brcmf_cfg80211_security *sec;
2404 s32 wsec;
2405 s32 err = 0;
2406
2407 brcmf_dbg(TRACE, "Enter\n");
2408 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2409 if (!check_vif_up(ifp->vif))
2410 return -EIO;
2411
2412 memset(&params, 0, sizeof(params));
2413
2414 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2415 if (err) {
2416 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2417 /* Ignore this error, may happen during DISASSOC */
2418 err = -EAGAIN;
2419 goto done;
2420 }
2421 if (wsec & WEP_ENABLED) {
2422 sec = &profile->sec;
2423 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2424 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2425 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2426 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2427 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2428 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2429 }
2430 } else if (wsec & TKIP_ENABLED) {
2431 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2432 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2433 } else if (wsec & AES_ENABLED) {
2434 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2435 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2436 } else {
2437 brcmf_err("Invalid algo (0x%x)\n", wsec);
2438 err = -EINVAL;
2439 goto done;
2440 }
2441 callback(cookie, &params);
2442
2443 done:
2444 brcmf_dbg(TRACE, "Exit\n");
2445 return err;
2446 }
2447
2448 static s32
2449 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2450 struct net_device *ndev, u8 key_idx)
2451 {
2452 struct brcmf_if *ifp = netdev_priv(ndev);
2453
2454 brcmf_dbg(TRACE, "Enter key_idx %d\n", key_idx);
2455
2456 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
2457 return 0;
2458
2459 brcmf_dbg(INFO, "Not supported\n");
2460
2461 return -EOPNOTSUPP;
2462 }
2463
2464 static void
2465 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2466 {
2467 s32 err;
2468 u8 key_idx;
2469 struct brcmf_wsec_key *key;
2470 s32 wsec;
2471
2472 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2473 key = &ifp->vif->profile.key[key_idx];
2474 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2475 (key->algo == CRYPTO_ALGO_WEP128))
2476 break;
2477 }
2478 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2479 return;
2480
2481 err = send_key_to_dongle(ifp, key);
2482 if (err) {
2483 brcmf_err("Setting WEP key failed (%d)\n", err);
2484 return;
2485 }
2486 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2487 if (err) {
2488 brcmf_err("get wsec error (%d)\n", err);
2489 return;
2490 }
2491 wsec |= WEP_ENABLED;
2492 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2493 if (err)
2494 brcmf_err("set wsec error (%d)\n", err);
2495 }
2496
2497 static void brcmf_convert_sta_flags(u32 fw_sta_flags, struct station_info *si)
2498 {
2499 struct nl80211_sta_flag_update *sfu;
2500
2501 brcmf_dbg(TRACE, "flags %08x\n", fw_sta_flags);
2502 si->filled |= BIT(NL80211_STA_INFO_STA_FLAGS);
2503 sfu = &si->sta_flags;
2504 sfu->mask = BIT(NL80211_STA_FLAG_WME) |
2505 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2506 BIT(NL80211_STA_FLAG_ASSOCIATED) |
2507 BIT(NL80211_STA_FLAG_AUTHORIZED);
2508 if (fw_sta_flags & BRCMF_STA_WME)
2509 sfu->set |= BIT(NL80211_STA_FLAG_WME);
2510 if (fw_sta_flags & BRCMF_STA_AUTHE)
2511 sfu->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
2512 if (fw_sta_flags & BRCMF_STA_ASSOC)
2513 sfu->set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
2514 if (fw_sta_flags & BRCMF_STA_AUTHO)
2515 sfu->set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
2516 }
2517
2518 static void brcmf_fill_bss_param(struct brcmf_if *ifp, struct station_info *si)
2519 {
2520 struct {
2521 __le32 len;
2522 struct brcmf_bss_info_le bss_le;
2523 } *buf;
2524 u16 capability;
2525 int err;
2526
2527 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2528 if (!buf)
2529 return;
2530
2531 buf->len = cpu_to_le32(WL_BSS_INFO_MAX);
2532 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, buf,
2533 WL_BSS_INFO_MAX);
2534 if (err) {
2535 brcmf_err("Failed to get bss info (%d)\n", err);
2536 return;
2537 }
2538 si->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
2539 si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period);
2540 si->bss_param.dtim_period = buf->bss_le.dtim_period;
2541 capability = le16_to_cpu(buf->bss_le.capability);
2542 if (capability & IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT)
2543 si->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
2544 if (capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2545 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
2546 if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
2547 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
2548 }
2549
2550 static s32
2551 brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp,
2552 struct station_info *sinfo)
2553 {
2554 struct brcmf_scb_val_le scbval;
2555 struct brcmf_pktcnt_le pktcnt;
2556 s32 err;
2557 u32 rate;
2558 u32 rssi;
2559
2560 /* Get the current tx rate */
2561 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2562 if (err < 0) {
2563 brcmf_err("BRCMF_C_GET_RATE error (%d)\n", err);
2564 return err;
2565 }
2566 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2567 sinfo->txrate.legacy = rate * 5;
2568
2569 memset(&scbval, 0, sizeof(scbval));
2570 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, &scbval,
2571 sizeof(scbval));
2572 if (err) {
2573 brcmf_err("BRCMF_C_GET_RSSI error (%d)\n", err);
2574 return err;
2575 }
2576 rssi = le32_to_cpu(scbval.val);
2577 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2578 sinfo->signal = rssi;
2579
2580 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_GET_PKTCNTS, &pktcnt,
2581 sizeof(pktcnt));
2582 if (err) {
2583 brcmf_err("BRCMF_C_GET_GET_PKTCNTS error (%d)\n", err);
2584 return err;
2585 }
2586 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS) |
2587 BIT(NL80211_STA_INFO_RX_DROP_MISC) |
2588 BIT(NL80211_STA_INFO_TX_PACKETS) |
2589 BIT(NL80211_STA_INFO_TX_FAILED);
2590 sinfo->rx_packets = le32_to_cpu(pktcnt.rx_good_pkt);
2591 sinfo->rx_dropped_misc = le32_to_cpu(pktcnt.rx_bad_pkt);
2592 sinfo->tx_packets = le32_to_cpu(pktcnt.tx_good_pkt);
2593 sinfo->tx_failed = le32_to_cpu(pktcnt.tx_bad_pkt);
2594
2595 return 0;
2596 }
2597
2598 static s32
2599 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2600 const u8 *mac, struct station_info *sinfo)
2601 {
2602 struct brcmf_if *ifp = netdev_priv(ndev);
2603 struct brcmf_scb_val_le scb_val;
2604 s32 err = 0;
2605 struct brcmf_sta_info_le sta_info_le;
2606 u32 sta_flags;
2607 u32 is_tdls_peer;
2608 s32 total_rssi;
2609 s32 count_rssi;
2610 int rssi;
2611 u32 i;
2612
2613 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2614 if (!check_vif_up(ifp->vif))
2615 return -EIO;
2616
2617 if (brcmf_is_ibssmode(ifp->vif))
2618 return brcmf_cfg80211_get_station_ibss(ifp, sinfo);
2619
2620 memset(&sta_info_le, 0, sizeof(sta_info_le));
2621 memcpy(&sta_info_le, mac, ETH_ALEN);
2622 err = brcmf_fil_iovar_data_get(ifp, "tdls_sta_info",
2623 &sta_info_le,
2624 sizeof(sta_info_le));
2625 is_tdls_peer = !err;
2626 if (err) {
2627 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2628 &sta_info_le,
2629 sizeof(sta_info_le));
2630 if (err < 0) {
2631 brcmf_err("GET STA INFO failed, %d\n", err);
2632 goto done;
2633 }
2634 }
2635 brcmf_dbg(TRACE, "version %d\n", le16_to_cpu(sta_info_le.ver));
2636 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME);
2637 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2638 sta_flags = le32_to_cpu(sta_info_le.flags);
2639 brcmf_convert_sta_flags(sta_flags, sinfo);
2640 sinfo->sta_flags.mask |= BIT(NL80211_STA_FLAG_TDLS_PEER);
2641 if (is_tdls_peer)
2642 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
2643 else
2644 sinfo->sta_flags.set &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2645 if (sta_flags & BRCMF_STA_ASSOC) {
2646 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME);
2647 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2648 brcmf_fill_bss_param(ifp, sinfo);
2649 }
2650 if (sta_flags & BRCMF_STA_SCBSTATS) {
2651 sinfo->filled |= BIT(NL80211_STA_INFO_TX_FAILED);
2652 sinfo->tx_failed = le32_to_cpu(sta_info_le.tx_failures);
2653 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS);
2654 sinfo->tx_packets = le32_to_cpu(sta_info_le.tx_pkts);
2655 sinfo->tx_packets += le32_to_cpu(sta_info_le.tx_mcast_pkts);
2656 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS);
2657 sinfo->rx_packets = le32_to_cpu(sta_info_le.rx_ucast_pkts);
2658 sinfo->rx_packets += le32_to_cpu(sta_info_le.rx_mcast_pkts);
2659 if (sinfo->tx_packets) {
2660 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2661 sinfo->txrate.legacy =
2662 le32_to_cpu(sta_info_le.tx_rate) / 100;
2663 }
2664 if (sinfo->rx_packets) {
2665 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
2666 sinfo->rxrate.legacy =
2667 le32_to_cpu(sta_info_le.rx_rate) / 100;
2668 }
2669 if (le16_to_cpu(sta_info_le.ver) >= 4) {
2670 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES);
2671 sinfo->tx_bytes = le64_to_cpu(sta_info_le.tx_tot_bytes);
2672 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES);
2673 sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes);
2674 }
2675 total_rssi = 0;
2676 count_rssi = 0;
2677 for (i = 0; i < BRCMF_ANT_MAX; i++) {
2678 if (sta_info_le.rssi[i]) {
2679 sinfo->chain_signal_avg[count_rssi] =
2680 sta_info_le.rssi[i];
2681 sinfo->chain_signal[count_rssi] =
2682 sta_info_le.rssi[i];
2683 total_rssi += sta_info_le.rssi[i];
2684 count_rssi++;
2685 }
2686 }
2687 if (count_rssi) {
2688 sinfo->filled |= BIT(NL80211_STA_INFO_CHAIN_SIGNAL);
2689 sinfo->chains = count_rssi;
2690
2691 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2692 total_rssi /= count_rssi;
2693 sinfo->signal = total_rssi;
2694 } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2695 &ifp->vif->sme_state)) {
2696 memset(&scb_val, 0, sizeof(scb_val));
2697 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2698 &scb_val, sizeof(scb_val));
2699 if (err) {
2700 brcmf_err("Could not get rssi (%d)\n", err);
2701 goto done;
2702 } else {
2703 rssi = le32_to_cpu(scb_val.val);
2704 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2705 sinfo->signal = rssi;
2706 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2707 }
2708 }
2709 }
2710 done:
2711 brcmf_dbg(TRACE, "Exit\n");
2712 return err;
2713 }
2714
2715 static int
2716 brcmf_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *ndev,
2717 int idx, u8 *mac, struct station_info *sinfo)
2718 {
2719 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2720 struct brcmf_if *ifp = netdev_priv(ndev);
2721 s32 err;
2722
2723 brcmf_dbg(TRACE, "Enter, idx %d\n", idx);
2724
2725 if (idx == 0) {
2726 cfg->assoclist.count = cpu_to_le32(BRCMF_MAX_ASSOCLIST);
2727 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_ASSOCLIST,
2728 &cfg->assoclist,
2729 sizeof(cfg->assoclist));
2730 if (err) {
2731 brcmf_err("BRCMF_C_GET_ASSOCLIST unsupported, err=%d\n",
2732 err);
2733 cfg->assoclist.count = 0;
2734 return -EOPNOTSUPP;
2735 }
2736 }
2737 if (idx < le32_to_cpu(cfg->assoclist.count)) {
2738 memcpy(mac, cfg->assoclist.mac[idx], ETH_ALEN);
2739 return brcmf_cfg80211_get_station(wiphy, ndev, mac, sinfo);
2740 }
2741 return -ENOENT;
2742 }
2743
2744 static s32
2745 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2746 bool enabled, s32 timeout)
2747 {
2748 s32 pm;
2749 s32 err = 0;
2750 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2751 struct brcmf_if *ifp = netdev_priv(ndev);
2752
2753 brcmf_dbg(TRACE, "Enter\n");
2754
2755 /*
2756 * Powersave enable/disable request is coming from the
2757 * cfg80211 even before the interface is up. In that
2758 * scenario, driver will be storing the power save
2759 * preference in cfg struct to apply this to
2760 * FW later while initializing the dongle
2761 */
2762 cfg->pwr_save = enabled;
2763 if (!check_vif_up(ifp->vif)) {
2764
2765 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2766 goto done;
2767 }
2768
2769 pm = enabled ? PM_FAST : PM_OFF;
2770 /* Do not enable the power save after assoc if it is a p2p interface */
2771 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2772 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2773 pm = PM_OFF;
2774 }
2775 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2776
2777 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2778 if (err) {
2779 if (err == -ENODEV)
2780 brcmf_err("net_device is not ready yet\n");
2781 else
2782 brcmf_err("error (%d)\n", err);
2783 }
2784 done:
2785 brcmf_dbg(TRACE, "Exit\n");
2786 return err;
2787 }
2788
2789 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2790 struct brcmf_bss_info_le *bi)
2791 {
2792 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2793 struct ieee80211_channel *notify_channel;
2794 struct cfg80211_bss *bss;
2795 struct ieee80211_supported_band *band;
2796 struct brcmu_chan ch;
2797 u16 channel;
2798 u32 freq;
2799 u16 notify_capability;
2800 u16 notify_interval;
2801 u8 *notify_ie;
2802 size_t notify_ielen;
2803 s32 notify_signal;
2804
2805 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2806 brcmf_err("Bss info is larger than buffer. Discarding\n");
2807 return 0;
2808 }
2809
2810 if (!bi->ctl_ch) {
2811 ch.chspec = le16_to_cpu(bi->chanspec);
2812 cfg->d11inf.decchspec(&ch);
2813 bi->ctl_ch = ch.control_ch_num;
2814 }
2815 channel = bi->ctl_ch;
2816
2817 if (channel <= CH_MAX_2G_CHANNEL)
2818 band = wiphy->bands[NL80211_BAND_2GHZ];
2819 else
2820 band = wiphy->bands[NL80211_BAND_5GHZ];
2821
2822 freq = ieee80211_channel_to_frequency(channel, band->band);
2823 notify_channel = ieee80211_get_channel(wiphy, freq);
2824
2825 notify_capability = le16_to_cpu(bi->capability);
2826 notify_interval = le16_to_cpu(bi->beacon_period);
2827 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2828 notify_ielen = le32_to_cpu(bi->ie_length);
2829 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2830
2831 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2832 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2833 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2834 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2835 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2836
2837 bss = cfg80211_inform_bss(wiphy, notify_channel,
2838 CFG80211_BSS_FTYPE_UNKNOWN,
2839 (const u8 *)bi->BSSID,
2840 0, notify_capability,
2841 notify_interval, notify_ie,
2842 notify_ielen, notify_signal,
2843 GFP_KERNEL);
2844
2845 if (!bss)
2846 return -ENOMEM;
2847
2848 cfg80211_put_bss(wiphy, bss);
2849
2850 return 0;
2851 }
2852
2853 static struct brcmf_bss_info_le *
2854 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2855 {
2856 if (bss == NULL)
2857 return list->bss_info_le;
2858 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2859 le32_to_cpu(bss->length));
2860 }
2861
2862 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2863 {
2864 struct brcmf_scan_results *bss_list;
2865 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2866 s32 err = 0;
2867 int i;
2868
2869 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2870 if (bss_list->count != 0 &&
2871 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2872 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2873 bss_list->version);
2874 return -EOPNOTSUPP;
2875 }
2876 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2877 for (i = 0; i < bss_list->count; i++) {
2878 bi = next_bss_le(bss_list, bi);
2879 err = brcmf_inform_single_bss(cfg, bi);
2880 if (err)
2881 break;
2882 }
2883 return err;
2884 }
2885
2886 static s32 brcmf_inform_ibss(struct brcmf_cfg80211_info *cfg,
2887 struct net_device *ndev, const u8 *bssid)
2888 {
2889 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2890 struct ieee80211_channel *notify_channel;
2891 struct brcmf_bss_info_le *bi = NULL;
2892 struct ieee80211_supported_band *band;
2893 struct cfg80211_bss *bss;
2894 struct brcmu_chan ch;
2895 u8 *buf = NULL;
2896 s32 err = 0;
2897 u32 freq;
2898 u16 notify_capability;
2899 u16 notify_interval;
2900 u8 *notify_ie;
2901 size_t notify_ielen;
2902 s32 notify_signal;
2903
2904 brcmf_dbg(TRACE, "Enter\n");
2905
2906 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2907 if (buf == NULL) {
2908 err = -ENOMEM;
2909 goto CleanUp;
2910 }
2911
2912 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2913
2914 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2915 buf, WL_BSS_INFO_MAX);
2916 if (err) {
2917 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2918 goto CleanUp;
2919 }
2920
2921 bi = (struct brcmf_bss_info_le *)(buf + 4);
2922
2923 ch.chspec = le16_to_cpu(bi->chanspec);
2924 cfg->d11inf.decchspec(&ch);
2925
2926 if (ch.band == BRCMU_CHAN_BAND_2G)
2927 band = wiphy->bands[NL80211_BAND_2GHZ];
2928 else
2929 band = wiphy->bands[NL80211_BAND_5GHZ];
2930
2931 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band);
2932 cfg->channel = freq;
2933 notify_channel = ieee80211_get_channel(wiphy, freq);
2934
2935 notify_capability = le16_to_cpu(bi->capability);
2936 notify_interval = le16_to_cpu(bi->beacon_period);
2937 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2938 notify_ielen = le32_to_cpu(bi->ie_length);
2939 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2940
2941 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.control_ch_num, freq);
2942 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2943 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2944 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2945
2946 bss = cfg80211_inform_bss(wiphy, notify_channel,
2947 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2948 notify_capability, notify_interval,
2949 notify_ie, notify_ielen, notify_signal,
2950 GFP_KERNEL);
2951
2952 if (!bss) {
2953 err = -ENOMEM;
2954 goto CleanUp;
2955 }
2956
2957 cfg80211_put_bss(wiphy, bss);
2958
2959 CleanUp:
2960
2961 kfree(buf);
2962
2963 brcmf_dbg(TRACE, "Exit\n");
2964
2965 return err;
2966 }
2967
2968 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2969 struct brcmf_if *ifp)
2970 {
2971 struct brcmf_bss_info_le *bi;
2972 const struct brcmf_tlv *tim;
2973 u16 beacon_interval;
2974 u8 dtim_period;
2975 size_t ie_len;
2976 u8 *ie;
2977 s32 err = 0;
2978
2979 brcmf_dbg(TRACE, "Enter\n");
2980 if (brcmf_is_ibssmode(ifp->vif))
2981 return err;
2982
2983 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2984 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2985 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2986 if (err) {
2987 brcmf_err("Could not get bss info %d\n", err);
2988 goto update_bss_info_out;
2989 }
2990
2991 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2992 err = brcmf_inform_single_bss(cfg, bi);
2993 if (err)
2994 goto update_bss_info_out;
2995
2996 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2997 ie_len = le32_to_cpu(bi->ie_length);
2998 beacon_interval = le16_to_cpu(bi->beacon_period);
2999
3000 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
3001 if (tim)
3002 dtim_period = tim->data[1];
3003 else {
3004 /*
3005 * active scan was done so we could not get dtim
3006 * information out of probe response.
3007 * so we speficially query dtim information to dongle.
3008 */
3009 u32 var;
3010 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
3011 if (err) {
3012 brcmf_err("wl dtim_assoc failed (%d)\n", err);
3013 goto update_bss_info_out;
3014 }
3015 dtim_period = (u8)var;
3016 }
3017
3018 update_bss_info_out:
3019 brcmf_dbg(TRACE, "Exit");
3020 return err;
3021 }
3022
3023 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
3024 {
3025 struct escan_info *escan = &cfg->escan_info;
3026
3027 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
3028 if (cfg->scan_request) {
3029 escan->escan_state = WL_ESCAN_STATE_IDLE;
3030 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
3031 }
3032 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3033 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
3034 }
3035
3036 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
3037 {
3038 struct brcmf_cfg80211_info *cfg =
3039 container_of(work, struct brcmf_cfg80211_info,
3040 escan_timeout_work);
3041
3042 brcmf_inform_bss(cfg);
3043 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
3044 }
3045
3046 static void brcmf_escan_timeout(unsigned long data)
3047 {
3048 struct brcmf_cfg80211_info *cfg =
3049 (struct brcmf_cfg80211_info *)data;
3050
3051 if (cfg->scan_request) {
3052 brcmf_err("timer expired\n");
3053 schedule_work(&cfg->escan_timeout_work);
3054 }
3055 }
3056
3057 static s32
3058 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
3059 struct brcmf_bss_info_le *bss,
3060 struct brcmf_bss_info_le *bss_info_le)
3061 {
3062 struct brcmu_chan ch_bss, ch_bss_info_le;
3063
3064 ch_bss.chspec = le16_to_cpu(bss->chanspec);
3065 cfg->d11inf.decchspec(&ch_bss);
3066 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
3067 cfg->d11inf.decchspec(&ch_bss_info_le);
3068
3069 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
3070 ch_bss.band == ch_bss_info_le.band &&
3071 bss_info_le->SSID_len == bss->SSID_len &&
3072 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
3073 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
3074 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
3075 s16 bss_rssi = le16_to_cpu(bss->RSSI);
3076 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
3077
3078 /* preserve max RSSI if the measurements are
3079 * both on-channel or both off-channel
3080 */
3081 if (bss_info_rssi > bss_rssi)
3082 bss->RSSI = bss_info_le->RSSI;
3083 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
3084 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
3085 /* preserve the on-channel rssi measurement
3086 * if the new measurement is off channel
3087 */
3088 bss->RSSI = bss_info_le->RSSI;
3089 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
3090 }
3091 return 1;
3092 }
3093 return 0;
3094 }
3095
3096 static s32
3097 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
3098 const struct brcmf_event_msg *e, void *data)
3099 {
3100 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3101 s32 status;
3102 struct brcmf_escan_result_le *escan_result_le;
3103 struct brcmf_bss_info_le *bss_info_le;
3104 struct brcmf_bss_info_le *bss = NULL;
3105 u32 bi_length;
3106 struct brcmf_scan_results *list;
3107 u32 i;
3108 bool aborted;
3109
3110 status = e->status;
3111
3112 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3113 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx);
3114 return -EPERM;
3115 }
3116
3117 if (status == BRCMF_E_STATUS_PARTIAL) {
3118 brcmf_dbg(SCAN, "ESCAN Partial result\n");
3119 escan_result_le = (struct brcmf_escan_result_le *) data;
3120 if (!escan_result_le) {
3121 brcmf_err("Invalid escan result (NULL pointer)\n");
3122 goto exit;
3123 }
3124 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
3125 brcmf_err("Invalid bss_count %d: ignoring\n",
3126 escan_result_le->bss_count);
3127 goto exit;
3128 }
3129 bss_info_le = &escan_result_le->bss_info_le;
3130
3131 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
3132 goto exit;
3133
3134 if (!cfg->scan_request) {
3135 brcmf_dbg(SCAN, "result without cfg80211 request\n");
3136 goto exit;
3137 }
3138
3139 bi_length = le32_to_cpu(bss_info_le->length);
3140 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
3141 WL_ESCAN_RESULTS_FIXED_SIZE)) {
3142 brcmf_err("Invalid bss_info length %d: ignoring\n",
3143 bi_length);
3144 goto exit;
3145 }
3146
3147 if (!(cfg_to_wiphy(cfg)->interface_modes &
3148 BIT(NL80211_IFTYPE_ADHOC))) {
3149 if (le16_to_cpu(bss_info_le->capability) &
3150 WLAN_CAPABILITY_IBSS) {
3151 brcmf_err("Ignoring IBSS result\n");
3152 goto exit;
3153 }
3154 }
3155
3156 list = (struct brcmf_scan_results *)
3157 cfg->escan_info.escan_buf;
3158 if (bi_length > BRCMF_ESCAN_BUF_SIZE - list->buflen) {
3159 brcmf_err("Buffer is too small: ignoring\n");
3160 goto exit;
3161 }
3162
3163 for (i = 0; i < list->count; i++) {
3164 bss = bss ? (struct brcmf_bss_info_le *)
3165 ((unsigned char *)bss +
3166 le32_to_cpu(bss->length)) : list->bss_info_le;
3167 if (brcmf_compare_update_same_bss(cfg, bss,
3168 bss_info_le))
3169 goto exit;
3170 }
3171 memcpy(&cfg->escan_info.escan_buf[list->buflen], bss_info_le,
3172 bi_length);
3173 list->version = le32_to_cpu(bss_info_le->version);
3174 list->buflen += bi_length;
3175 list->count++;
3176 } else {
3177 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
3178 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
3179 goto exit;
3180 if (cfg->scan_request) {
3181 brcmf_inform_bss(cfg);
3182 aborted = status != BRCMF_E_STATUS_SUCCESS;
3183 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
3184 } else
3185 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
3186 status);
3187 }
3188 exit:
3189 return 0;
3190 }
3191
3192 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
3193 {
3194 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
3195 brcmf_cfg80211_escan_handler);
3196 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
3197 /* Init scan_timeout timer */
3198 init_timer(&cfg->escan_timeout);
3199 cfg->escan_timeout.data = (unsigned long) cfg;
3200 cfg->escan_timeout.function = brcmf_escan_timeout;
3201 INIT_WORK(&cfg->escan_timeout_work,
3202 brcmf_cfg80211_escan_timeout_worker);
3203 }
3204
3205 /* PFN result doesn't have all the info which are required by the supplicant
3206 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3207 * via wl_inform_single_bss in the required format. Escan does require the
3208 * scan request in the form of cfg80211_scan_request. For timebeing, create
3209 * cfg80211_scan_request one out of the received PNO event.
3210 */
3211 static s32
3212 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3213 const struct brcmf_event_msg *e, void *data)
3214 {
3215 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3216 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3217 struct cfg80211_scan_request *request = NULL;
3218 struct cfg80211_ssid *ssid = NULL;
3219 struct ieee80211_channel *channel = NULL;
3220 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3221 int err = 0;
3222 int channel_req = 0;
3223 int band = 0;
3224 struct brcmf_pno_scanresults_le *pfn_result;
3225 u32 result_count;
3226 u32 status;
3227
3228 brcmf_dbg(SCAN, "Enter\n");
3229
3230 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
3231 brcmf_dbg(SCAN, "Event data to small. Ignore\n");
3232 return 0;
3233 }
3234
3235 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3236 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3237 return 0;
3238 }
3239
3240 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3241 result_count = le32_to_cpu(pfn_result->count);
3242 status = le32_to_cpu(pfn_result->status);
3243
3244 /* PFN event is limited to fit 512 bytes so we may get
3245 * multiple NET_FOUND events. For now place a warning here.
3246 */
3247 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3248 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3249 if (result_count > 0) {
3250 int i;
3251
3252 request = kzalloc(sizeof(*request), GFP_KERNEL);
3253 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3254 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3255 if (!request || !ssid || !channel) {
3256 err = -ENOMEM;
3257 goto out_err;
3258 }
3259
3260 request->wiphy = wiphy;
3261 data += sizeof(struct brcmf_pno_scanresults_le);
3262 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3263
3264 for (i = 0; i < result_count; i++) {
3265 netinfo = &netinfo_start[i];
3266 if (!netinfo) {
3267 brcmf_err("Invalid netinfo ptr. index: %d\n",
3268 i);
3269 err = -EINVAL;
3270 goto out_err;
3271 }
3272
3273 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3274 netinfo->SSID, netinfo->channel);
3275 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3276 ssid[i].ssid_len = netinfo->SSID_len;
3277 request->n_ssids++;
3278
3279 channel_req = netinfo->channel;
3280 if (channel_req <= CH_MAX_2G_CHANNEL)
3281 band = NL80211_BAND_2GHZ;
3282 else
3283 band = NL80211_BAND_5GHZ;
3284 channel[i].center_freq =
3285 ieee80211_channel_to_frequency(channel_req,
3286 band);
3287 channel[i].band = band;
3288 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3289 request->channels[i] = &channel[i];
3290 request->n_channels++;
3291 }
3292
3293 /* assign parsed ssid array */
3294 if (request->n_ssids)
3295 request->ssids = &ssid[0];
3296
3297 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3298 /* Abort any on-going scan */
3299 brcmf_abort_scanning(cfg);
3300 }
3301
3302 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3303 cfg->escan_info.run = brcmf_run_escan;
3304 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3305 if (err) {
3306 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3307 goto out_err;
3308 }
3309 cfg->sched_escan = true;
3310 cfg->scan_request = request;
3311 } else {
3312 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3313 goto out_err;
3314 }
3315
3316 kfree(ssid);
3317 kfree(channel);
3318 kfree(request);
3319 return 0;
3320
3321 out_err:
3322 kfree(ssid);
3323 kfree(channel);
3324 kfree(request);
3325 cfg80211_sched_scan_stopped(wiphy);
3326 return err;
3327 }
3328
3329 static int brcmf_dev_pno_clean(struct net_device *ndev)
3330 {
3331 int ret;
3332
3333 /* Disable pfn */
3334 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3335 if (ret == 0) {
3336 /* clear pfn */
3337 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3338 NULL, 0);
3339 }
3340 if (ret < 0)
3341 brcmf_err("failed code %d\n", ret);
3342
3343 return ret;
3344 }
3345
3346 static int brcmf_dev_pno_config(struct brcmf_if *ifp,
3347 struct cfg80211_sched_scan_request *request)
3348 {
3349 struct brcmf_pno_param_le pfn_param;
3350 struct brcmf_pno_macaddr_le pfn_mac;
3351 s32 err;
3352 u8 *mac_mask;
3353 int i;
3354
3355 memset(&pfn_param, 0, sizeof(pfn_param));
3356 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3357
3358 /* set extra pno params */
3359 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3360 pfn_param.repeat = BRCMF_PNO_REPEAT;
3361 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3362
3363 /* set up pno scan fr */
3364 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3365
3366 err = brcmf_fil_iovar_data_set(ifp, "pfn_set", &pfn_param,
3367 sizeof(pfn_param));
3368 if (err) {
3369 brcmf_err("pfn_set failed, err=%d\n", err);
3370 return err;
3371 }
3372
3373 /* Find out if mac randomization should be turned on */
3374 if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR))
3375 return 0;
3376
3377 pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER;
3378 pfn_mac.flags = BRCMF_PFN_MAC_OUI_ONLY | BRCMF_PFN_SET_MAC_UNASSOC;
3379
3380 memcpy(pfn_mac.mac, request->mac_addr, ETH_ALEN);
3381 mac_mask = request->mac_addr_mask;
3382 for (i = 0; i < ETH_ALEN; i++) {
3383 pfn_mac.mac[i] &= mac_mask[i];
3384 pfn_mac.mac[i] |= get_random_int() & ~(mac_mask[i]);
3385 }
3386 /* Clear multi bit */
3387 pfn_mac.mac[0] &= 0xFE;
3388 /* Set locally administered */
3389 pfn_mac.mac[0] |= 0x02;
3390
3391 err = brcmf_fil_iovar_data_set(ifp, "pfn_macaddr", &pfn_mac,
3392 sizeof(pfn_mac));
3393 if (err)
3394 brcmf_err("pfn_macaddr failed, err=%d\n", err);
3395
3396 return err;
3397 }
3398
3399 static int
3400 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3401 struct net_device *ndev,
3402 struct cfg80211_sched_scan_request *request)
3403 {
3404 struct brcmf_if *ifp = netdev_priv(ndev);
3405 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3406 struct brcmf_pno_net_param_le pfn;
3407 int i;
3408 int ret = 0;
3409
3410 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3411 request->n_match_sets, request->n_ssids);
3412 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3413 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3414 return -EAGAIN;
3415 }
3416 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3417 brcmf_err("Scanning suppressed: status (%lu)\n",
3418 cfg->scan_status);
3419 return -EAGAIN;
3420 }
3421
3422 if (!request->n_ssids || !request->n_match_sets) {
3423 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3424 request->n_ssids);
3425 return -EINVAL;
3426 }
3427
3428 if (request->n_ssids > 0) {
3429 for (i = 0; i < request->n_ssids; i++) {
3430 /* Active scan req for ssids */
3431 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3432 request->ssids[i].ssid);
3433
3434 /* match_set ssids is a supert set of n_ssid list,
3435 * so we need not add these set separately.
3436 */
3437 }
3438 }
3439
3440 if (request->n_match_sets > 0) {
3441 /* clean up everything */
3442 ret = brcmf_dev_pno_clean(ndev);
3443 if (ret < 0) {
3444 brcmf_err("failed error=%d\n", ret);
3445 return ret;
3446 }
3447
3448 /* configure pno */
3449 if (brcmf_dev_pno_config(ifp, request))
3450 return -EINVAL;
3451
3452 /* configure each match set */
3453 for (i = 0; i < request->n_match_sets; i++) {
3454 struct cfg80211_ssid *ssid;
3455 u32 ssid_len;
3456
3457 ssid = &request->match_sets[i].ssid;
3458 ssid_len = ssid->ssid_len;
3459
3460 if (!ssid_len) {
3461 brcmf_err("skip broadcast ssid\n");
3462 continue;
3463 }
3464 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3465 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3466 pfn.wsec = cpu_to_le32(0);
3467 pfn.infra = cpu_to_le32(1);
3468 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3469 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3470 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3471 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3472 sizeof(pfn));
3473 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3474 ret == 0 ? "set" : "failed", ssid->ssid);
3475 }
3476 /* Enable the PNO */
3477 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3478 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3479 return -EINVAL;
3480 }
3481 } else {
3482 return -EINVAL;
3483 }
3484
3485 return 0;
3486 }
3487
3488 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3489 struct net_device *ndev)
3490 {
3491 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3492
3493 brcmf_dbg(SCAN, "enter\n");
3494 brcmf_dev_pno_clean(ndev);
3495 if (cfg->sched_escan)
3496 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3497 return 0;
3498 }
3499
3500 static __always_inline void brcmf_delay(u32 ms)
3501 {
3502 if (ms < 1000 / HZ) {
3503 cond_resched();
3504 mdelay(ms);
3505 } else {
3506 msleep(ms);
3507 }
3508 }
3509
3510 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
3511 u8 *pattern, u32 patternsize, u8 *mask,
3512 u32 packet_offset)
3513 {
3514 struct brcmf_fil_wowl_pattern_le *filter;
3515 u32 masksize;
3516 u32 patternoffset;
3517 u8 *buf;
3518 u32 bufsize;
3519 s32 ret;
3520
3521 masksize = (patternsize + 7) / 8;
3522 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
3523
3524 bufsize = sizeof(*filter) + patternsize + masksize;
3525 buf = kzalloc(bufsize, GFP_KERNEL);
3526 if (!buf)
3527 return -ENOMEM;
3528 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
3529
3530 memcpy(filter->cmd, cmd, 4);
3531 filter->masksize = cpu_to_le32(masksize);
3532 filter->offset = cpu_to_le32(packet_offset);
3533 filter->patternoffset = cpu_to_le32(patternoffset);
3534 filter->patternsize = cpu_to_le32(patternsize);
3535 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
3536
3537 if ((mask) && (masksize))
3538 memcpy(buf + sizeof(*filter), mask, masksize);
3539 if ((pattern) && (patternsize))
3540 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
3541
3542 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
3543
3544 kfree(buf);
3545 return ret;
3546 }
3547
3548 static s32
3549 brcmf_wowl_nd_results(struct brcmf_if *ifp, const struct brcmf_event_msg *e,
3550 void *data)
3551 {
3552 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3553 struct brcmf_pno_scanresults_le *pfn_result;
3554 struct brcmf_pno_net_info_le *netinfo;
3555
3556 brcmf_dbg(SCAN, "Enter\n");
3557
3558 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
3559 brcmf_dbg(SCAN, "Event data to small. Ignore\n");
3560 return 0;
3561 }
3562
3563 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3564
3565 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3566 brcmf_dbg(SCAN, "PFN NET LOST event. Ignore\n");
3567 return 0;
3568 }
3569
3570 if (le32_to_cpu(pfn_result->count) < 1) {
3571 brcmf_err("Invalid result count, expected 1 (%d)\n",
3572 le32_to_cpu(pfn_result->count));
3573 return -EINVAL;
3574 }
3575
3576 data += sizeof(struct brcmf_pno_scanresults_le);
3577 netinfo = (struct brcmf_pno_net_info_le *)data;
3578 memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len);
3579 cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len;
3580 cfg->wowl.nd->n_channels = 1;
3581 cfg->wowl.nd->channels[0] =
3582 ieee80211_channel_to_frequency(netinfo->channel,
3583 netinfo->channel <= CH_MAX_2G_CHANNEL ?
3584 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ);
3585 cfg->wowl.nd_info->n_matches = 1;
3586 cfg->wowl.nd_info->matches[0] = cfg->wowl.nd;
3587
3588 /* Inform (the resume task) that the net detect information was recvd */
3589 cfg->wowl.nd_data_completed = true;
3590 wake_up(&cfg->wowl.nd_data_wait);
3591
3592 return 0;
3593 }
3594
3595 #ifdef CONFIG_PM
3596
3597 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp)
3598 {
3599 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3600 struct brcmf_wowl_wakeind_le wake_ind_le;
3601 struct cfg80211_wowlan_wakeup wakeup_data;
3602 struct cfg80211_wowlan_wakeup *wakeup;
3603 u32 wakeind;
3604 s32 err;
3605 int timeout;
3606
3607 err = brcmf_fil_iovar_data_get(ifp, "wowl_wakeind", &wake_ind_le,
3608 sizeof(wake_ind_le));
3609 if (err) {
3610 brcmf_err("Get wowl_wakeind failed, err = %d\n", err);
3611 return;
3612 }
3613
3614 wakeind = le32_to_cpu(wake_ind_le.ucode_wakeind);
3615 if (wakeind & (BRCMF_WOWL_MAGIC | BRCMF_WOWL_DIS | BRCMF_WOWL_BCN |
3616 BRCMF_WOWL_RETR | BRCMF_WOWL_NET |
3617 BRCMF_WOWL_PFN_FOUND)) {
3618 wakeup = &wakeup_data;
3619 memset(&wakeup_data, 0, sizeof(wakeup_data));
3620 wakeup_data.pattern_idx = -1;
3621
3622 if (wakeind & BRCMF_WOWL_MAGIC) {
3623 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_MAGIC\n");
3624 wakeup_data.magic_pkt = true;
3625 }
3626 if (wakeind & BRCMF_WOWL_DIS) {
3627 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_DIS\n");
3628 wakeup_data.disconnect = true;
3629 }
3630 if (wakeind & BRCMF_WOWL_BCN) {
3631 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_BCN\n");
3632 wakeup_data.disconnect = true;
3633 }
3634 if (wakeind & BRCMF_WOWL_RETR) {
3635 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_RETR\n");
3636 wakeup_data.disconnect = true;
3637 }
3638 if (wakeind & BRCMF_WOWL_NET) {
3639 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_NET\n");
3640 /* For now always map to pattern 0, no API to get
3641 * correct information available at the moment.
3642 */
3643 wakeup_data.pattern_idx = 0;
3644 }
3645 if (wakeind & BRCMF_WOWL_PFN_FOUND) {
3646 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_PFN_FOUND\n");
3647 timeout = wait_event_timeout(cfg->wowl.nd_data_wait,
3648 cfg->wowl.nd_data_completed,
3649 BRCMF_ND_INFO_TIMEOUT);
3650 if (!timeout)
3651 brcmf_err("No result for wowl net detect\n");
3652 else
3653 wakeup_data.net_detect = cfg->wowl.nd_info;
3654 }
3655 if (wakeind & BRCMF_WOWL_GTK_FAILURE) {
3656 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_GTK_FAILURE\n");
3657 wakeup_data.gtk_rekey_failure = true;
3658 }
3659 } else {
3660 wakeup = NULL;
3661 }
3662 cfg80211_report_wowlan_wakeup(&ifp->vif->wdev, wakeup, GFP_KERNEL);
3663 }
3664
3665 #else
3666
3667 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp)
3668 {
3669 }
3670
3671 #endif /* CONFIG_PM */
3672
3673 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
3674 {
3675 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3676 struct net_device *ndev = cfg_to_ndev(cfg);
3677 struct brcmf_if *ifp = netdev_priv(ndev);
3678
3679 brcmf_dbg(TRACE, "Enter\n");
3680
3681 if (cfg->wowl.active) {
3682 brcmf_report_wowl_wakeind(wiphy, ifp);
3683 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
3684 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
3685 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND))
3686 brcmf_configure_arp_nd_offload(ifp, true);
3687 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
3688 cfg->wowl.pre_pmmode);
3689 cfg->wowl.active = false;
3690 if (cfg->wowl.nd_enabled) {
3691 brcmf_cfg80211_sched_scan_stop(cfg->wiphy, ifp->ndev);
3692 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND);
3693 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
3694 brcmf_notify_sched_scan_results);
3695 cfg->wowl.nd_enabled = false;
3696 }
3697 }
3698 return 0;
3699 }
3700
3701 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
3702 struct brcmf_if *ifp,
3703 struct cfg80211_wowlan *wowl)
3704 {
3705 u32 wowl_config;
3706 u32 i;
3707
3708 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
3709
3710 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND))
3711 brcmf_configure_arp_nd_offload(ifp, false);
3712 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->wowl.pre_pmmode);
3713 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
3714
3715 wowl_config = 0;
3716 if (wowl->disconnect)
3717 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
3718 if (wowl->magic_pkt)
3719 wowl_config |= BRCMF_WOWL_MAGIC;
3720 if ((wowl->patterns) && (wowl->n_patterns)) {
3721 wowl_config |= BRCMF_WOWL_NET;
3722 for (i = 0; i < wowl->n_patterns; i++) {
3723 brcmf_config_wowl_pattern(ifp, "add",
3724 (u8 *)wowl->patterns[i].pattern,
3725 wowl->patterns[i].pattern_len,
3726 (u8 *)wowl->patterns[i].mask,
3727 wowl->patterns[i].pkt_offset);
3728 }
3729 }
3730 if (wowl->nd_config) {
3731 brcmf_cfg80211_sched_scan_start(cfg->wiphy, ifp->ndev,
3732 wowl->nd_config);
3733 wowl_config |= BRCMF_WOWL_PFN_FOUND;
3734
3735 cfg->wowl.nd_data_completed = false;
3736 cfg->wowl.nd_enabled = true;
3737 /* Now reroute the event for PFN to the wowl function. */
3738 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND);
3739 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
3740 brcmf_wowl_nd_results);
3741 }
3742 if (wowl->gtk_rekey_failure)
3743 wowl_config |= BRCMF_WOWL_GTK_FAILURE;
3744 if (!test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
3745 wowl_config |= BRCMF_WOWL_UNASSOC;
3746
3747 brcmf_fil_iovar_data_set(ifp, "wowl_wakeind", "clear",
3748 sizeof(struct brcmf_wowl_wakeind_le));
3749 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3750 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3751 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3752 cfg->wowl.active = true;
3753 }
3754
3755 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3756 struct cfg80211_wowlan *wowl)
3757 {
3758 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3759 struct net_device *ndev = cfg_to_ndev(cfg);
3760 struct brcmf_if *ifp = netdev_priv(ndev);
3761 struct brcmf_cfg80211_vif *vif;
3762
3763 brcmf_dbg(TRACE, "Enter\n");
3764
3765 /* if the primary net_device is not READY there is nothing
3766 * we can do but pray resume goes smoothly.
3767 */
3768 if (!check_vif_up(ifp->vif))
3769 goto exit;
3770
3771 /* Stop scheduled scan */
3772 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO))
3773 brcmf_cfg80211_sched_scan_stop(wiphy, ndev);
3774
3775 /* end any scanning */
3776 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3777 brcmf_abort_scanning(cfg);
3778
3779 if (wowl == NULL) {
3780 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3781 list_for_each_entry(vif, &cfg->vif_list, list) {
3782 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3783 continue;
3784 /* While going to suspend if associated with AP
3785 * disassociate from AP to save power while system is
3786 * in suspended state
3787 */
3788 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED);
3789 /* Make sure WPA_Supplicant receives all the event
3790 * generated due to DISASSOC call to the fw to keep
3791 * the state fw and WPA_Supplicant state consistent
3792 */
3793 brcmf_delay(500);
3794 }
3795 /* Configure MPC */
3796 brcmf_set_mpc(ifp, 1);
3797
3798 } else {
3799 /* Configure WOWL paramaters */
3800 brcmf_configure_wowl(cfg, ifp, wowl);
3801 }
3802
3803 exit:
3804 brcmf_dbg(TRACE, "Exit\n");
3805 /* clear any scanning activity */
3806 cfg->scan_status = 0;
3807 return 0;
3808 }
3809
3810 static __used s32
3811 brcmf_update_pmklist(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp)
3812 {
3813 struct brcmf_pmk_list_le *pmk_list;
3814 int i;
3815 u32 npmk;
3816 s32 err;
3817
3818 pmk_list = &cfg->pmk_list;
3819 npmk = le32_to_cpu(pmk_list->npmk);
3820
3821 brcmf_dbg(CONN, "No of elements %d\n", npmk);
3822 for (i = 0; i < npmk; i++)
3823 brcmf_dbg(CONN, "PMK[%d]: %pM\n", i, &pmk_list->pmk[i].bssid);
3824
3825 err = brcmf_fil_iovar_data_set(ifp, "pmkid_info", pmk_list,
3826 sizeof(*pmk_list));
3827
3828 return err;
3829 }
3830
3831 static s32
3832 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3833 struct cfg80211_pmksa *pmksa)
3834 {
3835 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3836 struct brcmf_if *ifp = netdev_priv(ndev);
3837 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0];
3838 s32 err;
3839 u32 npmk, i;
3840
3841 brcmf_dbg(TRACE, "Enter\n");
3842 if (!check_vif_up(ifp->vif))
3843 return -EIO;
3844
3845 npmk = le32_to_cpu(cfg->pmk_list.npmk);
3846 for (i = 0; i < npmk; i++)
3847 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN))
3848 break;
3849 if (i < BRCMF_MAXPMKID) {
3850 memcpy(pmk[i].bssid, pmksa->bssid, ETH_ALEN);
3851 memcpy(pmk[i].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
3852 if (i == npmk) {
3853 npmk++;
3854 cfg->pmk_list.npmk = cpu_to_le32(npmk);
3855 }
3856 } else {
3857 brcmf_err("Too many PMKSA entries cached %d\n", npmk);
3858 return -EINVAL;
3859 }
3860
3861 brcmf_dbg(CONN, "set_pmksa - PMK bssid: %pM =\n", pmk[npmk].bssid);
3862 for (i = 0; i < WLAN_PMKID_LEN; i += 4)
3863 brcmf_dbg(CONN, "%02x %02x %02x %02x\n", pmk[npmk].pmkid[i],
3864 pmk[npmk].pmkid[i + 1], pmk[npmk].pmkid[i + 2],
3865 pmk[npmk].pmkid[i + 3]);
3866
3867 err = brcmf_update_pmklist(cfg, ifp);
3868
3869 brcmf_dbg(TRACE, "Exit\n");
3870 return err;
3871 }
3872
3873 static s32
3874 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3875 struct cfg80211_pmksa *pmksa)
3876 {
3877 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3878 struct brcmf_if *ifp = netdev_priv(ndev);
3879 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0];
3880 s32 err;
3881 u32 npmk, i;
3882
3883 brcmf_dbg(TRACE, "Enter\n");
3884 if (!check_vif_up(ifp->vif))
3885 return -EIO;
3886
3887 brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", &pmksa->bssid);
3888
3889 npmk = le32_to_cpu(cfg->pmk_list.npmk);
3890 for (i = 0; i < npmk; i++)
3891 if (!memcmp(&pmksa->bssid, &pmk[i].bssid, ETH_ALEN))
3892 break;
3893
3894 if ((npmk > 0) && (i < npmk)) {
3895 for (; i < (npmk - 1); i++) {
3896 memcpy(&pmk[i].bssid, &pmk[i + 1].bssid, ETH_ALEN);
3897 memcpy(&pmk[i].pmkid, &pmk[i + 1].pmkid,
3898 WLAN_PMKID_LEN);
3899 }
3900 memset(&pmk[i], 0, sizeof(*pmk));
3901 cfg->pmk_list.npmk = cpu_to_le32(npmk - 1);
3902 } else {
3903 brcmf_err("Cache entry not found\n");
3904 return -EINVAL;
3905 }
3906
3907 err = brcmf_update_pmklist(cfg, ifp);
3908
3909 brcmf_dbg(TRACE, "Exit\n");
3910 return err;
3911
3912 }
3913
3914 static s32
3915 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3916 {
3917 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3918 struct brcmf_if *ifp = netdev_priv(ndev);
3919 s32 err;
3920
3921 brcmf_dbg(TRACE, "Enter\n");
3922 if (!check_vif_up(ifp->vif))
3923 return -EIO;
3924
3925 memset(&cfg->pmk_list, 0, sizeof(cfg->pmk_list));
3926 err = brcmf_update_pmklist(cfg, ifp);
3927
3928 brcmf_dbg(TRACE, "Exit\n");
3929 return err;
3930
3931 }
3932
3933 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3934 {
3935 s32 err;
3936
3937 /* set auth */
3938 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3939 if (err < 0) {
3940 brcmf_err("auth error %d\n", err);
3941 return err;
3942 }
3943 /* set wsec */
3944 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3945 if (err < 0) {
3946 brcmf_err("wsec error %d\n", err);
3947 return err;
3948 }
3949 /* set upper-layer auth */
3950 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3951 if (err < 0) {
3952 brcmf_err("wpa_auth error %d\n", err);
3953 return err;
3954 }
3955
3956 return 0;
3957 }
3958
3959 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3960 {
3961 if (is_rsn_ie)
3962 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3963
3964 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3965 }
3966
3967 static s32
3968 brcmf_configure_wpaie(struct brcmf_if *ifp,
3969 const struct brcmf_vs_tlv *wpa_ie,
3970 bool is_rsn_ie)
3971 {
3972 u32 auth = 0; /* d11 open authentication */
3973 u16 count;
3974 s32 err = 0;
3975 s32 len;
3976 u32 i;
3977 u32 wsec;
3978 u32 pval = 0;
3979 u32 gval = 0;
3980 u32 wpa_auth = 0;
3981 u32 offset;
3982 u8 *data;
3983 u16 rsn_cap;
3984 u32 wme_bss_disable;
3985 u32 mfp;
3986
3987 brcmf_dbg(TRACE, "Enter\n");
3988 if (wpa_ie == NULL)
3989 goto exit;
3990
3991 len = wpa_ie->len + TLV_HDR_LEN;
3992 data = (u8 *)wpa_ie;
3993 offset = TLV_HDR_LEN;
3994 if (!is_rsn_ie)
3995 offset += VS_IE_FIXED_HDR_LEN;
3996 else
3997 offset += WPA_IE_VERSION_LEN;
3998
3999 /* check for multicast cipher suite */
4000 if (offset + WPA_IE_MIN_OUI_LEN > len) {
4001 err = -EINVAL;
4002 brcmf_err("no multicast cipher suite\n");
4003 goto exit;
4004 }
4005
4006 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
4007 err = -EINVAL;
4008 brcmf_err("ivalid OUI\n");
4009 goto exit;
4010 }
4011 offset += TLV_OUI_LEN;
4012
4013 /* pick up multicast cipher */
4014 switch (data[offset]) {
4015 case WPA_CIPHER_NONE:
4016 gval = 0;
4017 break;
4018 case WPA_CIPHER_WEP_40:
4019 case WPA_CIPHER_WEP_104:
4020 gval = WEP_ENABLED;
4021 break;
4022 case WPA_CIPHER_TKIP:
4023 gval = TKIP_ENABLED;
4024 break;
4025 case WPA_CIPHER_AES_CCM:
4026 gval = AES_ENABLED;
4027 break;
4028 default:
4029 err = -EINVAL;
4030 brcmf_err("Invalid multi cast cipher info\n");
4031 goto exit;
4032 }
4033
4034 offset++;
4035 /* walk thru unicast cipher list and pick up what we recognize */
4036 count = data[offset] + (data[offset + 1] << 8);
4037 offset += WPA_IE_SUITE_COUNT_LEN;
4038 /* Check for unicast suite(s) */
4039 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
4040 err = -EINVAL;
4041 brcmf_err("no unicast cipher suite\n");
4042 goto exit;
4043 }
4044 for (i = 0; i < count; i++) {
4045 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
4046 err = -EINVAL;
4047 brcmf_err("ivalid OUI\n");
4048 goto exit;
4049 }
4050 offset += TLV_OUI_LEN;
4051 switch (data[offset]) {
4052 case WPA_CIPHER_NONE:
4053 break;
4054 case WPA_CIPHER_WEP_40:
4055 case WPA_CIPHER_WEP_104:
4056 pval |= WEP_ENABLED;
4057 break;
4058 case WPA_CIPHER_TKIP:
4059 pval |= TKIP_ENABLED;
4060 break;
4061 case WPA_CIPHER_AES_CCM:
4062 pval |= AES_ENABLED;
4063 break;
4064 default:
4065 brcmf_err("Ivalid unicast security info\n");
4066 }
4067 offset++;
4068 }
4069 /* walk thru auth management suite list and pick up what we recognize */
4070 count = data[offset] + (data[offset + 1] << 8);
4071 offset += WPA_IE_SUITE_COUNT_LEN;
4072 /* Check for auth key management suite(s) */
4073 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
4074 err = -EINVAL;
4075 brcmf_err("no auth key mgmt suite\n");
4076 goto exit;
4077 }
4078 for (i = 0; i < count; i++) {
4079 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
4080 err = -EINVAL;
4081 brcmf_err("ivalid OUI\n");
4082 goto exit;
4083 }
4084 offset += TLV_OUI_LEN;
4085 switch (data[offset]) {
4086 case RSN_AKM_NONE:
4087 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
4088 wpa_auth |= WPA_AUTH_NONE;
4089 break;
4090 case RSN_AKM_UNSPECIFIED:
4091 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
4092 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
4093 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
4094 break;
4095 case RSN_AKM_PSK:
4096 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
4097 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
4098 (wpa_auth |= WPA_AUTH_PSK);
4099 break;
4100 case RSN_AKM_SHA256_PSK:
4101 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n");
4102 wpa_auth |= WPA2_AUTH_PSK_SHA256;
4103 break;
4104 case RSN_AKM_SHA256_1X:
4105 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n");
4106 wpa_auth |= WPA2_AUTH_1X_SHA256;
4107 break;
4108 default:
4109 brcmf_err("Ivalid key mgmt info\n");
4110 }
4111 offset++;
4112 }
4113
4114 mfp = BRCMF_MFP_NONE;
4115 if (is_rsn_ie) {
4116 wme_bss_disable = 1;
4117 if ((offset + RSN_CAP_LEN) <= len) {
4118 rsn_cap = data[offset] + (data[offset + 1] << 8);
4119 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
4120 wme_bss_disable = 0;
4121 if (rsn_cap & RSN_CAP_MFPR_MASK) {
4122 brcmf_dbg(TRACE, "MFP Required\n");
4123 mfp = BRCMF_MFP_REQUIRED;
4124 /* Firmware only supports mfp required in
4125 * combination with WPA2_AUTH_PSK_SHA256 or
4126 * WPA2_AUTH_1X_SHA256.
4127 */
4128 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 |
4129 WPA2_AUTH_1X_SHA256))) {
4130 err = -EINVAL;
4131 goto exit;
4132 }
4133 /* Firmware has requirement that WPA2_AUTH_PSK/
4134 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI
4135 * is to be included in the rsn ie.
4136 */
4137 if (wpa_auth & WPA2_AUTH_PSK_SHA256)
4138 wpa_auth |= WPA2_AUTH_PSK;
4139 else if (wpa_auth & WPA2_AUTH_1X_SHA256)
4140 wpa_auth |= WPA2_AUTH_UNSPECIFIED;
4141 } else if (rsn_cap & RSN_CAP_MFPC_MASK) {
4142 brcmf_dbg(TRACE, "MFP Capable\n");
4143 mfp = BRCMF_MFP_CAPABLE;
4144 }
4145 }
4146 offset += RSN_CAP_LEN;
4147 /* set wme_bss_disable to sync RSN Capabilities */
4148 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
4149 wme_bss_disable);
4150 if (err < 0) {
4151 brcmf_err("wme_bss_disable error %d\n", err);
4152 goto exit;
4153 }
4154
4155 /* Skip PMKID cnt as it is know to be 0 for AP. */
4156 offset += RSN_PMKID_COUNT_LEN;
4157
4158 /* See if there is BIP wpa suite left for MFP */
4159 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) &&
4160 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) {
4161 err = brcmf_fil_bsscfg_data_set(ifp, "bip",
4162 &data[offset],
4163 WPA_IE_MIN_OUI_LEN);
4164 if (err < 0) {
4165 brcmf_err("bip error %d\n", err);
4166 goto exit;
4167 }
4168 }
4169 }
4170 /* FOR WPS , set SES_OW_ENABLED */
4171 wsec = (pval | gval | SES_OW_ENABLED);
4172
4173 /* set auth */
4174 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
4175 if (err < 0) {
4176 brcmf_err("auth error %d\n", err);
4177 goto exit;
4178 }
4179 /* set wsec */
4180 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
4181 if (err < 0) {
4182 brcmf_err("wsec error %d\n", err);
4183 goto exit;
4184 }
4185 /* Configure MFP, this needs to go after wsec otherwise the wsec command
4186 * will overwrite the values set by MFP
4187 */
4188 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) {
4189 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp);
4190 if (err < 0) {
4191 brcmf_err("mfp error %d\n", err);
4192 goto exit;
4193 }
4194 }
4195 /* set upper-layer auth */
4196 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
4197 if (err < 0) {
4198 brcmf_err("wpa_auth error %d\n", err);
4199 goto exit;
4200 }
4201
4202 exit:
4203 return err;
4204 }
4205
4206 static s32
4207 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
4208 struct parsed_vndr_ies *vndr_ies)
4209 {
4210 struct brcmf_vs_tlv *vndrie;
4211 struct brcmf_tlv *ie;
4212 struct parsed_vndr_ie_info *parsed_info;
4213 s32 remaining_len;
4214
4215 remaining_len = (s32)vndr_ie_len;
4216 memset(vndr_ies, 0, sizeof(*vndr_ies));
4217
4218 ie = (struct brcmf_tlv *)vndr_ie_buf;
4219 while (ie) {
4220 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
4221 goto next;
4222 vndrie = (struct brcmf_vs_tlv *)ie;
4223 /* len should be bigger than OUI length + one */
4224 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
4225 brcmf_err("invalid vndr ie. length is too small %d\n",
4226 vndrie->len);
4227 goto next;
4228 }
4229 /* if wpa or wme ie, do not add ie */
4230 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
4231 ((vndrie->oui_type == WPA_OUI_TYPE) ||
4232 (vndrie->oui_type == WME_OUI_TYPE))) {
4233 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
4234 goto next;
4235 }
4236
4237 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
4238
4239 /* save vndr ie information */
4240 parsed_info->ie_ptr = (char *)vndrie;
4241 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
4242 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
4243
4244 vndr_ies->count++;
4245
4246 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
4247 parsed_info->vndrie.oui[0],
4248 parsed_info->vndrie.oui[1],
4249 parsed_info->vndrie.oui[2],
4250 parsed_info->vndrie.oui_type);
4251
4252 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
4253 break;
4254 next:
4255 remaining_len -= (ie->len + TLV_HDR_LEN);
4256 if (remaining_len <= TLV_HDR_LEN)
4257 ie = NULL;
4258 else
4259 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
4260 TLV_HDR_LEN);
4261 }
4262 return 0;
4263 }
4264
4265 static u32
4266 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
4267 {
4268
4269 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
4270 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
4271
4272 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]);
4273
4274 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]);
4275
4276 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
4277
4278 return ie_len + VNDR_IE_HDR_SIZE;
4279 }
4280
4281 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
4282 const u8 *vndr_ie_buf, u32 vndr_ie_len)
4283 {
4284 struct brcmf_if *ifp;
4285 struct vif_saved_ie *saved_ie;
4286 s32 err = 0;
4287 u8 *iovar_ie_buf;
4288 u8 *curr_ie_buf;
4289 u8 *mgmt_ie_buf = NULL;
4290 int mgmt_ie_buf_len;
4291 u32 *mgmt_ie_len;
4292 u32 del_add_ie_buf_len = 0;
4293 u32 total_ie_buf_len = 0;
4294 u32 parsed_ie_buf_len = 0;
4295 struct parsed_vndr_ies old_vndr_ies;
4296 struct parsed_vndr_ies new_vndr_ies;
4297 struct parsed_vndr_ie_info *vndrie_info;
4298 s32 i;
4299 u8 *ptr;
4300 int remained_buf_len;
4301
4302 if (!vif)
4303 return -ENODEV;
4304 ifp = vif->ifp;
4305 saved_ie = &vif->saved_ie;
4306
4307 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx,
4308 pktflag);
4309 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4310 if (!iovar_ie_buf)
4311 return -ENOMEM;
4312 curr_ie_buf = iovar_ie_buf;
4313 switch (pktflag) {
4314 case BRCMF_VNDR_IE_PRBREQ_FLAG:
4315 mgmt_ie_buf = saved_ie->probe_req_ie;
4316 mgmt_ie_len = &saved_ie->probe_req_ie_len;
4317 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
4318 break;
4319 case BRCMF_VNDR_IE_PRBRSP_FLAG:
4320 mgmt_ie_buf = saved_ie->probe_res_ie;
4321 mgmt_ie_len = &saved_ie->probe_res_ie_len;
4322 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
4323 break;
4324 case BRCMF_VNDR_IE_BEACON_FLAG:
4325 mgmt_ie_buf = saved_ie->beacon_ie;
4326 mgmt_ie_len = &saved_ie->beacon_ie_len;
4327 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
4328 break;
4329 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
4330 mgmt_ie_buf = saved_ie->assoc_req_ie;
4331 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
4332 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
4333 break;
4334 default:
4335 err = -EPERM;
4336 brcmf_err("not suitable type\n");
4337 goto exit;
4338 }
4339
4340 if (vndr_ie_len > mgmt_ie_buf_len) {
4341 err = -ENOMEM;
4342 brcmf_err("extra IE size too big\n");
4343 goto exit;
4344 }
4345
4346 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
4347 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
4348 ptr = curr_ie_buf;
4349 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
4350 for (i = 0; i < new_vndr_ies.count; i++) {
4351 vndrie_info = &new_vndr_ies.ie_info[i];
4352 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
4353 vndrie_info->ie_len);
4354 parsed_ie_buf_len += vndrie_info->ie_len;
4355 }
4356 }
4357
4358 if (mgmt_ie_buf && *mgmt_ie_len) {
4359 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
4360 (memcmp(mgmt_ie_buf, curr_ie_buf,
4361 parsed_ie_buf_len) == 0)) {
4362 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
4363 goto exit;
4364 }
4365
4366 /* parse old vndr_ie */
4367 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
4368
4369 /* make a command to delete old ie */
4370 for (i = 0; i < old_vndr_ies.count; i++) {
4371 vndrie_info = &old_vndr_ies.ie_info[i];
4372
4373 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
4374 vndrie_info->vndrie.id,
4375 vndrie_info->vndrie.len,
4376 vndrie_info->vndrie.oui[0],
4377 vndrie_info->vndrie.oui[1],
4378 vndrie_info->vndrie.oui[2]);
4379
4380 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
4381 vndrie_info->ie_ptr,
4382 vndrie_info->ie_len,
4383 "del");
4384 curr_ie_buf += del_add_ie_buf_len;
4385 total_ie_buf_len += del_add_ie_buf_len;
4386 }
4387 }
4388
4389 *mgmt_ie_len = 0;
4390 /* Add if there is any extra IE */
4391 if (mgmt_ie_buf && parsed_ie_buf_len) {
4392 ptr = mgmt_ie_buf;
4393
4394 remained_buf_len = mgmt_ie_buf_len;
4395
4396 /* make a command to add new ie */
4397 for (i = 0; i < new_vndr_ies.count; i++) {
4398 vndrie_info = &new_vndr_ies.ie_info[i];
4399
4400 /* verify remained buf size before copy data */
4401 if (remained_buf_len < (vndrie_info->vndrie.len +
4402 VNDR_IE_VSIE_OFFSET)) {
4403 brcmf_err("no space in mgmt_ie_buf: len left %d",
4404 remained_buf_len);
4405 break;
4406 }
4407 remained_buf_len -= (vndrie_info->ie_len +
4408 VNDR_IE_VSIE_OFFSET);
4409
4410 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
4411 vndrie_info->vndrie.id,
4412 vndrie_info->vndrie.len,
4413 vndrie_info->vndrie.oui[0],
4414 vndrie_info->vndrie.oui[1],
4415 vndrie_info->vndrie.oui[2]);
4416
4417 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
4418 vndrie_info->ie_ptr,
4419 vndrie_info->ie_len,
4420 "add");
4421
4422 /* save the parsed IE in wl struct */
4423 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
4424 vndrie_info->ie_len);
4425 *mgmt_ie_len += vndrie_info->ie_len;
4426
4427 curr_ie_buf += del_add_ie_buf_len;
4428 total_ie_buf_len += del_add_ie_buf_len;
4429 }
4430 }
4431 if (total_ie_buf_len) {
4432 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
4433 total_ie_buf_len);
4434 if (err)
4435 brcmf_err("vndr ie set error : %d\n", err);
4436 }
4437
4438 exit:
4439 kfree(iovar_ie_buf);
4440 return err;
4441 }
4442
4443 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
4444 {
4445 s32 pktflags[] = {
4446 BRCMF_VNDR_IE_PRBREQ_FLAG,
4447 BRCMF_VNDR_IE_PRBRSP_FLAG,
4448 BRCMF_VNDR_IE_BEACON_FLAG
4449 };
4450 int i;
4451
4452 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
4453 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
4454
4455 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
4456 return 0;
4457 }
4458
4459 static s32
4460 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
4461 struct cfg80211_beacon_data *beacon)
4462 {
4463 s32 err;
4464
4465 /* Set Beacon IEs to FW */
4466 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
4467 beacon->tail, beacon->tail_len);
4468 if (err) {
4469 brcmf_err("Set Beacon IE Failed\n");
4470 return err;
4471 }
4472 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
4473
4474 /* Set Probe Response IEs to FW */
4475 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
4476 beacon->proberesp_ies,
4477 beacon->proberesp_ies_len);
4478 if (err)
4479 brcmf_err("Set Probe Resp IE Failed\n");
4480 else
4481 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
4482
4483 return err;
4484 }
4485
4486 static s32
4487 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
4488 struct cfg80211_ap_settings *settings)
4489 {
4490 s32 ie_offset;
4491 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4492 struct brcmf_if *ifp = netdev_priv(ndev);
4493 const struct brcmf_tlv *ssid_ie;
4494 const struct brcmf_tlv *country_ie;
4495 struct brcmf_ssid_le ssid_le;
4496 s32 err = -EPERM;
4497 const struct brcmf_tlv *rsn_ie;
4498 const struct brcmf_vs_tlv *wpa_ie;
4499 struct brcmf_join_params join_params;
4500 enum nl80211_iftype dev_role;
4501 struct brcmf_fil_bss_enable_le bss_enable;
4502 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
4503 bool mbss;
4504 int is_11d;
4505
4506 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
4507 settings->chandef.chan->hw_value,
4508 settings->chandef.center_freq1, settings->chandef.width,
4509 settings->beacon_interval, settings->dtim_period);
4510 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
4511 settings->ssid, settings->ssid_len, settings->auth_type,
4512 settings->inactivity_timeout);
4513 dev_role = ifp->vif->wdev.iftype;
4514 mbss = ifp->vif->mbss;
4515
4516 /* store current 11d setting */
4517 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d);
4518 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4519 settings->beacon.tail_len,
4520 WLAN_EID_COUNTRY);
4521 is_11d = country_ie ? 1 : 0;
4522
4523 memset(&ssid_le, 0, sizeof(ssid_le));
4524 if (settings->ssid == NULL || settings->ssid_len == 0) {
4525 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
4526 ssid_ie = brcmf_parse_tlvs(
4527 (u8 *)&settings->beacon.head[ie_offset],
4528 settings->beacon.head_len - ie_offset,
4529 WLAN_EID_SSID);
4530 if (!ssid_ie)
4531 return -EINVAL;
4532
4533 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
4534 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4535 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4536 } else {
4537 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4538 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4539 }
4540
4541 if (!mbss) {
4542 brcmf_set_mpc(ifp, 0);
4543 brcmf_configure_arp_nd_offload(ifp, false);
4544 }
4545
4546 /* find the RSN_IE */
4547 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4548 settings->beacon.tail_len, WLAN_EID_RSN);
4549
4550 /* find the WPA_IE */
4551 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4552 settings->beacon.tail_len);
4553
4554 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4555 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4556 if (wpa_ie != NULL) {
4557 /* WPA IE */
4558 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4559 if (err < 0)
4560 goto exit;
4561 } else {
4562 struct brcmf_vs_tlv *tmp_ie;
4563
4564 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4565
4566 /* RSN IE */
4567 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4568 if (err < 0)
4569 goto exit;
4570 }
4571 } else {
4572 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4573 brcmf_configure_opensecurity(ifp);
4574 }
4575
4576 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4577
4578 /* Parameters shared by all radio interfaces */
4579 if (!mbss) {
4580 if (is_11d != ifp->vif->is_11d) {
4581 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4582 is_11d);
4583 if (err < 0) {
4584 brcmf_err("Regulatory Set Error, %d\n", err);
4585 goto exit;
4586 }
4587 }
4588 if (settings->beacon_interval) {
4589 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4590 settings->beacon_interval);
4591 if (err < 0) {
4592 brcmf_err("Beacon Interval Set Error, %d\n",
4593 err);
4594 goto exit;
4595 }
4596 }
4597 if (settings->dtim_period) {
4598 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4599 settings->dtim_period);
4600 if (err < 0) {
4601 brcmf_err("DTIM Interval Set Error, %d\n", err);
4602 goto exit;
4603 }
4604 }
4605
4606 if ((dev_role == NL80211_IFTYPE_AP) &&
4607 ((ifp->ifidx == 0) ||
4608 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) {
4609 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4610 if (err < 0) {
4611 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4612 goto exit;
4613 }
4614 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4615 }
4616
4617 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4618 if (err < 0) {
4619 brcmf_err("SET INFRA error %d\n", err);
4620 goto exit;
4621 }
4622 } else if (WARN_ON(is_11d != ifp->vif->is_11d)) {
4623 /* Multiple-BSS should use same 11d configuration */
4624 err = -EINVAL;
4625 goto exit;
4626 }
4627
4628 /* Interface specific setup */
4629 if (dev_role == NL80211_IFTYPE_AP) {
4630 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4631 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4632
4633 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4634 if (err < 0) {
4635 brcmf_err("setting AP mode failed %d\n", err);
4636 goto exit;
4637 }
4638 if (!mbss) {
4639 /* Firmware 10.x requires setting channel after enabling
4640 * AP and before bringing interface up.
4641 */
4642 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4643 if (err < 0) {
4644 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4645 chanspec, err);
4646 goto exit;
4647 }
4648 }
4649 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4650 if (err < 0) {
4651 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4652 goto exit;
4653 }
4654 /* On DOWN the firmware removes the WEP keys, reconfigure
4655 * them if they were set.
4656 */
4657 brcmf_cfg80211_reconfigure_wep(ifp);
4658
4659 memset(&join_params, 0, sizeof(join_params));
4660 /* join parameters starts with ssid */
4661 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4662 /* create softap */
4663 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4664 &join_params, sizeof(join_params));
4665 if (err < 0) {
4666 brcmf_err("SET SSID error (%d)\n", err);
4667 goto exit;
4668 }
4669
4670 if (settings->hidden_ssid) {
4671 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1);
4672 if (err) {
4673 brcmf_err("closednet error (%d)\n", err);
4674 goto exit;
4675 }
4676 }
4677
4678 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4679 } else if (dev_role == NL80211_IFTYPE_P2P_GO) {
4680 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4681 if (err < 0) {
4682 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4683 chanspec, err);
4684 goto exit;
4685 }
4686 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4687 sizeof(ssid_le));
4688 if (err < 0) {
4689 brcmf_err("setting ssid failed %d\n", err);
4690 goto exit;
4691 }
4692 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx);
4693 bss_enable.enable = cpu_to_le32(1);
4694 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4695 sizeof(bss_enable));
4696 if (err < 0) {
4697 brcmf_err("bss_enable config failed %d\n", err);
4698 goto exit;
4699 }
4700
4701 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4702 } else {
4703 WARN_ON(1);
4704 }
4705
4706 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4707 brcmf_net_setcarrier(ifp, true);
4708
4709 exit:
4710 if ((err) && (!mbss)) {
4711 brcmf_set_mpc(ifp, 1);
4712 brcmf_configure_arp_nd_offload(ifp, true);
4713 }
4714 return err;
4715 }
4716
4717 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4718 {
4719 struct brcmf_if *ifp = netdev_priv(ndev);
4720 s32 err;
4721 struct brcmf_fil_bss_enable_le bss_enable;
4722 struct brcmf_join_params join_params;
4723
4724 brcmf_dbg(TRACE, "Enter\n");
4725
4726 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4727 /* Due to most likely deauths outstanding we sleep */
4728 /* first to make sure they get processed by fw. */
4729 msleep(400);
4730
4731 if (ifp->vif->mbss) {
4732 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4733 return err;
4734 }
4735
4736 /* First BSS doesn't get a full reset */
4737 if (ifp->bsscfgidx == 0)
4738 brcmf_fil_iovar_int_set(ifp, "closednet", 0);
4739
4740 memset(&join_params, 0, sizeof(join_params));
4741 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4742 &join_params, sizeof(join_params));
4743 if (err < 0)
4744 brcmf_err("SET SSID error (%d)\n", err);
4745 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4746 if (err < 0)
4747 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4748 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4749 if (err < 0)
4750 brcmf_err("setting AP mode failed %d\n", err);
4751 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4752 if (err < 0)
4753 brcmf_err("setting INFRA mode failed %d\n", err);
4754 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4755 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4756 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4757 ifp->vif->is_11d);
4758 if (err < 0)
4759 brcmf_err("restoring REGULATORY setting failed %d\n",
4760 err);
4761 /* Bring device back up so it can be used again */
4762 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4763 if (err < 0)
4764 brcmf_err("BRCMF_C_UP error %d\n", err);
4765 } else {
4766 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx);
4767 bss_enable.enable = cpu_to_le32(0);
4768 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4769 sizeof(bss_enable));
4770 if (err < 0)
4771 brcmf_err("bss_enable config failed %d\n", err);
4772 }
4773 brcmf_set_mpc(ifp, 1);
4774 brcmf_configure_arp_nd_offload(ifp, true);
4775 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4776 brcmf_net_setcarrier(ifp, false);
4777
4778 return err;
4779 }
4780
4781 static s32
4782 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4783 struct cfg80211_beacon_data *info)
4784 {
4785 struct brcmf_if *ifp = netdev_priv(ndev);
4786 s32 err;
4787
4788 brcmf_dbg(TRACE, "Enter\n");
4789
4790 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4791
4792 return err;
4793 }
4794
4795 static int
4796 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4797 struct station_del_parameters *params)
4798 {
4799 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4800 struct brcmf_scb_val_le scbval;
4801 struct brcmf_if *ifp = netdev_priv(ndev);
4802 s32 err;
4803
4804 if (!params->mac)
4805 return -EFAULT;
4806
4807 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4808
4809 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4810 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4811 if (!check_vif_up(ifp->vif))
4812 return -EIO;
4813
4814 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4815 scbval.val = cpu_to_le32(params->reason_code);
4816 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4817 &scbval, sizeof(scbval));
4818 if (err)
4819 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4820
4821 brcmf_dbg(TRACE, "Exit\n");
4822 return err;
4823 }
4824
4825 static int
4826 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev,
4827 const u8 *mac, struct station_parameters *params)
4828 {
4829 struct brcmf_if *ifp = netdev_priv(ndev);
4830 s32 err;
4831
4832 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac,
4833 params->sta_flags_mask, params->sta_flags_set);
4834
4835 /* Ignore all 00 MAC */
4836 if (is_zero_ether_addr(mac))
4837 return 0;
4838
4839 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4840 return 0;
4841
4842 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4843 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE,
4844 (void *)mac, ETH_ALEN);
4845 else
4846 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE,
4847 (void *)mac, ETH_ALEN);
4848 if (err < 0)
4849 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err);
4850
4851 return err;
4852 }
4853
4854 static void
4855 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4856 struct wireless_dev *wdev,
4857 u16 frame_type, bool reg)
4858 {
4859 struct brcmf_cfg80211_vif *vif;
4860 u16 mgmt_type;
4861
4862 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4863
4864 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4865 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4866 if (reg)
4867 vif->mgmt_rx_reg |= BIT(mgmt_type);
4868 else
4869 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4870 }
4871
4872
4873 static int
4874 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4875 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4876 {
4877 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4878 struct ieee80211_channel *chan = params->chan;
4879 const u8 *buf = params->buf;
4880 size_t len = params->len;
4881 const struct ieee80211_mgmt *mgmt;
4882 struct brcmf_cfg80211_vif *vif;
4883 s32 err = 0;
4884 s32 ie_offset;
4885 s32 ie_len;
4886 struct brcmf_fil_action_frame_le *action_frame;
4887 struct brcmf_fil_af_params_le *af_params;
4888 bool ack;
4889 s32 chan_nr;
4890 u32 freq;
4891
4892 brcmf_dbg(TRACE, "Enter\n");
4893
4894 *cookie = 0;
4895
4896 mgmt = (const struct ieee80211_mgmt *)buf;
4897
4898 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4899 brcmf_err("Driver only allows MGMT packet type\n");
4900 return -EPERM;
4901 }
4902
4903 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4904
4905 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4906 /* Right now the only reason to get a probe response */
4907 /* is for p2p listen response or for p2p GO from */
4908 /* wpa_supplicant. Unfortunately the probe is send */
4909 /* on primary ndev, while dongle wants it on the p2p */
4910 /* vif. Since this is only reason for a probe */
4911 /* response to be sent, the vif is taken from cfg. */
4912 /* If ever desired to send proberesp for non p2p */
4913 /* response then data should be checked for */
4914 /* "DIRECT-". Note in future supplicant will take */
4915 /* dedicated p2p wdev to do this and then this 'hack'*/
4916 /* is not needed anymore. */
4917 ie_offset = DOT11_MGMT_HDR_LEN +
4918 DOT11_BCN_PRB_FIXED_LEN;
4919 ie_len = len - ie_offset;
4920 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4921 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4922 err = brcmf_vif_set_mgmt_ie(vif,
4923 BRCMF_VNDR_IE_PRBRSP_FLAG,
4924 &buf[ie_offset],
4925 ie_len);
4926 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4927 GFP_KERNEL);
4928 } else if (ieee80211_is_action(mgmt->frame_control)) {
4929 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4930 if (af_params == NULL) {
4931 brcmf_err("unable to allocate frame\n");
4932 err = -ENOMEM;
4933 goto exit;
4934 }
4935 action_frame = &af_params->action_frame;
4936 /* Add the packet Id */
4937 action_frame->packet_id = cpu_to_le32(*cookie);
4938 /* Add BSSID */
4939 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4940 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4941 /* Add the length exepted for 802.11 header */
4942 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4943 /* Add the channel. Use the one specified as parameter if any or
4944 * the current one (got from the firmware) otherwise
4945 */
4946 if (chan)
4947 freq = chan->center_freq;
4948 else
4949 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4950 &freq);
4951 chan_nr = ieee80211_frequency_to_channel(freq);
4952 af_params->channel = cpu_to_le32(chan_nr);
4953
4954 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4955 le16_to_cpu(action_frame->len));
4956
4957 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4958 *cookie, le16_to_cpu(action_frame->len), freq);
4959
4960 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4961 af_params);
4962
4963 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4964 GFP_KERNEL);
4965 kfree(af_params);
4966 } else {
4967 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4968 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4969 }
4970
4971 exit:
4972 return err;
4973 }
4974
4975
4976 static int
4977 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4978 struct wireless_dev *wdev,
4979 u64 cookie)
4980 {
4981 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4982 struct brcmf_cfg80211_vif *vif;
4983 int err = 0;
4984
4985 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4986
4987 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4988 if (vif == NULL) {
4989 brcmf_err("No p2p device available for probe response\n");
4990 err = -ENODEV;
4991 goto exit;
4992 }
4993 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4994 exit:
4995 return err;
4996 }
4997
4998 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy,
4999 struct wireless_dev *wdev,
5000 struct cfg80211_chan_def *chandef)
5001 {
5002 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
5003 struct net_device *ndev = wdev->netdev;
5004 struct brcmf_if *ifp;
5005 struct brcmu_chan ch;
5006 enum nl80211_band band = 0;
5007 enum nl80211_chan_width width = 0;
5008 u32 chanspec;
5009 int freq, err;
5010
5011 if (!ndev)
5012 return -ENODEV;
5013 ifp = netdev_priv(ndev);
5014
5015 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec);
5016 if (err) {
5017 brcmf_err("chanspec failed (%d)\n", err);
5018 return err;
5019 }
5020
5021 ch.chspec = chanspec;
5022 cfg->d11inf.decchspec(&ch);
5023
5024 switch (ch.band) {
5025 case BRCMU_CHAN_BAND_2G:
5026 band = NL80211_BAND_2GHZ;
5027 break;
5028 case BRCMU_CHAN_BAND_5G:
5029 band = NL80211_BAND_5GHZ;
5030 break;
5031 }
5032
5033 switch (ch.bw) {
5034 case BRCMU_CHAN_BW_80:
5035 width = NL80211_CHAN_WIDTH_80;
5036 break;
5037 case BRCMU_CHAN_BW_40:
5038 width = NL80211_CHAN_WIDTH_40;
5039 break;
5040 case BRCMU_CHAN_BW_20:
5041 width = NL80211_CHAN_WIDTH_20;
5042 break;
5043 case BRCMU_CHAN_BW_80P80:
5044 width = NL80211_CHAN_WIDTH_80P80;
5045 break;
5046 case BRCMU_CHAN_BW_160:
5047 width = NL80211_CHAN_WIDTH_160;
5048 break;
5049 }
5050
5051 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band);
5052 chandef->chan = ieee80211_get_channel(wiphy, freq);
5053 chandef->width = width;
5054 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band);
5055 chandef->center_freq2 = 0;
5056
5057 return 0;
5058 }
5059
5060 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
5061 struct wireless_dev *wdev,
5062 enum nl80211_crit_proto_id proto,
5063 u16 duration)
5064 {
5065 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
5066 struct brcmf_cfg80211_vif *vif;
5067
5068 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
5069
5070 /* only DHCP support for now */
5071 if (proto != NL80211_CRIT_PROTO_DHCP)
5072 return -EINVAL;
5073
5074 /* suppress and abort scanning */
5075 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
5076 brcmf_abort_scanning(cfg);
5077
5078 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
5079 }
5080
5081 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
5082 struct wireless_dev *wdev)
5083 {
5084 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
5085 struct brcmf_cfg80211_vif *vif;
5086
5087 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
5088
5089 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
5090 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
5091 }
5092
5093 static s32
5094 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
5095 const struct brcmf_event_msg *e, void *data)
5096 {
5097 switch (e->reason) {
5098 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
5099 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
5100 break;
5101 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
5102 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
5103 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5104 break;
5105 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
5106 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
5107 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5108 break;
5109 }
5110
5111 return 0;
5112 }
5113
5114 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
5115 {
5116 int ret;
5117
5118 switch (oper) {
5119 case NL80211_TDLS_DISCOVERY_REQ:
5120 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
5121 break;
5122 case NL80211_TDLS_SETUP:
5123 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
5124 break;
5125 case NL80211_TDLS_TEARDOWN:
5126 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
5127 break;
5128 default:
5129 brcmf_err("unsupported operation: %d\n", oper);
5130 ret = -EOPNOTSUPP;
5131 }
5132 return ret;
5133 }
5134
5135 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
5136 struct net_device *ndev, const u8 *peer,
5137 enum nl80211_tdls_operation oper)
5138 {
5139 struct brcmf_if *ifp;
5140 struct brcmf_tdls_iovar_le info;
5141 int ret = 0;
5142
5143 ret = brcmf_convert_nl80211_tdls_oper(oper);
5144 if (ret < 0)
5145 return ret;
5146
5147 ifp = netdev_priv(ndev);
5148 memset(&info, 0, sizeof(info));
5149 info.mode = (u8)ret;
5150 if (peer)
5151 memcpy(info.ea, peer, ETH_ALEN);
5152
5153 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
5154 &info, sizeof(info));
5155 if (ret < 0)
5156 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
5157
5158 return ret;
5159 }
5160
5161 #ifdef CONFIG_PM
5162 static int
5163 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev,
5164 struct cfg80211_gtk_rekey_data *gtk)
5165 {
5166 struct brcmf_if *ifp = netdev_priv(ndev);
5167 struct brcmf_gtk_keyinfo_le gtk_le;
5168 int ret;
5169
5170 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx);
5171
5172 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck));
5173 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek));
5174 memcpy(gtk_le.replay_counter, gtk->replay_ctr,
5175 sizeof(gtk_le.replay_counter));
5176
5177 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", &gtk_le,
5178 sizeof(gtk_le));
5179 if (ret < 0)
5180 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret);
5181
5182 return ret;
5183 }
5184 #endif
5185
5186 static struct cfg80211_ops brcmf_cfg80211_ops = {
5187 .add_virtual_intf = brcmf_cfg80211_add_iface,
5188 .del_virtual_intf = brcmf_cfg80211_del_iface,
5189 .change_virtual_intf = brcmf_cfg80211_change_iface,
5190 .scan = brcmf_cfg80211_scan,
5191 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
5192 .join_ibss = brcmf_cfg80211_join_ibss,
5193 .leave_ibss = brcmf_cfg80211_leave_ibss,
5194 .get_station = brcmf_cfg80211_get_station,
5195 .dump_station = brcmf_cfg80211_dump_station,
5196 .set_tx_power = brcmf_cfg80211_set_tx_power,
5197 .get_tx_power = brcmf_cfg80211_get_tx_power,
5198 .add_key = brcmf_cfg80211_add_key,
5199 .del_key = brcmf_cfg80211_del_key,
5200 .get_key = brcmf_cfg80211_get_key,
5201 .set_default_key = brcmf_cfg80211_config_default_key,
5202 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
5203 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
5204 .connect = brcmf_cfg80211_connect,
5205 .disconnect = brcmf_cfg80211_disconnect,
5206 .suspend = brcmf_cfg80211_suspend,
5207 .resume = brcmf_cfg80211_resume,
5208 .set_pmksa = brcmf_cfg80211_set_pmksa,
5209 .del_pmksa = brcmf_cfg80211_del_pmksa,
5210 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
5211 .start_ap = brcmf_cfg80211_start_ap,
5212 .stop_ap = brcmf_cfg80211_stop_ap,
5213 .change_beacon = brcmf_cfg80211_change_beacon,
5214 .del_station = brcmf_cfg80211_del_station,
5215 .change_station = brcmf_cfg80211_change_station,
5216 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
5217 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
5218 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
5219 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
5220 .remain_on_channel = brcmf_p2p_remain_on_channel,
5221 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
5222 .get_channel = brcmf_cfg80211_get_channel,
5223 .start_p2p_device = brcmf_p2p_start_device,
5224 .stop_p2p_device = brcmf_p2p_stop_device,
5225 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
5226 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
5227 .tdls_oper = brcmf_cfg80211_tdls_oper,
5228 };
5229
5230 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
5231 enum nl80211_iftype type)
5232 {
5233 struct brcmf_cfg80211_vif *vif_walk;
5234 struct brcmf_cfg80211_vif *vif;
5235 bool mbss;
5236
5237 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
5238 sizeof(*vif));
5239 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
5240 if (!vif)
5241 return ERR_PTR(-ENOMEM);
5242
5243 vif->wdev.wiphy = cfg->wiphy;
5244 vif->wdev.iftype = type;
5245
5246 brcmf_init_prof(&vif->profile);
5247
5248 if (type == NL80211_IFTYPE_AP) {
5249 mbss = false;
5250 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
5251 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
5252 mbss = true;
5253 break;
5254 }
5255 }
5256 vif->mbss = mbss;
5257 }
5258
5259 list_add_tail(&vif->list, &cfg->vif_list);
5260 return vif;
5261 }
5262
5263 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
5264 {
5265 list_del(&vif->list);
5266 kfree(vif);
5267 }
5268
5269 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
5270 {
5271 struct brcmf_cfg80211_vif *vif;
5272 struct brcmf_if *ifp;
5273
5274 ifp = netdev_priv(ndev);
5275 vif = ifp->vif;
5276
5277 if (vif)
5278 brcmf_free_vif(vif);
5279 free_netdev(ndev);
5280 }
5281
5282 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
5283 {
5284 u32 event = e->event_code;
5285 u32 status = e->status;
5286
5287 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
5288 brcmf_dbg(CONN, "Processing set ssid\n");
5289 return true;
5290 }
5291
5292 return false;
5293 }
5294
5295 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
5296 {
5297 u32 event = e->event_code;
5298 u16 flags = e->flags;
5299
5300 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
5301 (event == BRCMF_E_DISASSOC_IND) ||
5302 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
5303 brcmf_dbg(CONN, "Processing link down\n");
5304 return true;
5305 }
5306 return false;
5307 }
5308
5309 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
5310 const struct brcmf_event_msg *e)
5311 {
5312 u32 event = e->event_code;
5313 u32 status = e->status;
5314
5315 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
5316 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
5317 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
5318 return true;
5319 }
5320
5321 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
5322 brcmf_dbg(CONN, "Processing connecting & no network found\n");
5323 return true;
5324 }
5325
5326 return false;
5327 }
5328
5329 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
5330 {
5331 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5332
5333 kfree(conn_info->req_ie);
5334 conn_info->req_ie = NULL;
5335 conn_info->req_ie_len = 0;
5336 kfree(conn_info->resp_ie);
5337 conn_info->resp_ie = NULL;
5338 conn_info->resp_ie_len = 0;
5339 }
5340
5341 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
5342 struct brcmf_if *ifp)
5343 {
5344 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
5345 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5346 u32 req_len;
5347 u32 resp_len;
5348 s32 err = 0;
5349
5350 brcmf_clear_assoc_ies(cfg);
5351
5352 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
5353 cfg->extra_buf, WL_ASSOC_INFO_MAX);
5354 if (err) {
5355 brcmf_err("could not get assoc info (%d)\n", err);
5356 return err;
5357 }
5358 assoc_info =
5359 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
5360 req_len = le32_to_cpu(assoc_info->req_len);
5361 resp_len = le32_to_cpu(assoc_info->resp_len);
5362 if (req_len) {
5363 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
5364 cfg->extra_buf,
5365 WL_ASSOC_INFO_MAX);
5366 if (err) {
5367 brcmf_err("could not get assoc req (%d)\n", err);
5368 return err;
5369 }
5370 conn_info->req_ie_len = req_len;
5371 conn_info->req_ie =
5372 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
5373 GFP_KERNEL);
5374 } else {
5375 conn_info->req_ie_len = 0;
5376 conn_info->req_ie = NULL;
5377 }
5378 if (resp_len) {
5379 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
5380 cfg->extra_buf,
5381 WL_ASSOC_INFO_MAX);
5382 if (err) {
5383 brcmf_err("could not get assoc resp (%d)\n", err);
5384 return err;
5385 }
5386 conn_info->resp_ie_len = resp_len;
5387 conn_info->resp_ie =
5388 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
5389 GFP_KERNEL);
5390 } else {
5391 conn_info->resp_ie_len = 0;
5392 conn_info->resp_ie = NULL;
5393 }
5394 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
5395 conn_info->req_ie_len, conn_info->resp_ie_len);
5396
5397 return err;
5398 }
5399
5400 static s32
5401 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
5402 struct net_device *ndev,
5403 const struct brcmf_event_msg *e)
5404 {
5405 struct brcmf_if *ifp = netdev_priv(ndev);
5406 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5407 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5408 struct wiphy *wiphy = cfg_to_wiphy(cfg);
5409 struct ieee80211_channel *notify_channel = NULL;
5410 struct ieee80211_supported_band *band;
5411 struct brcmf_bss_info_le *bi;
5412 struct brcmu_chan ch;
5413 u32 freq;
5414 s32 err = 0;
5415 u8 *buf;
5416
5417 brcmf_dbg(TRACE, "Enter\n");
5418
5419 brcmf_get_assoc_ies(cfg, ifp);
5420 memcpy(profile->bssid, e->addr, ETH_ALEN);
5421 brcmf_update_bss_info(cfg, ifp);
5422
5423 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
5424 if (buf == NULL) {
5425 err = -ENOMEM;
5426 goto done;
5427 }
5428
5429 /* data sent to dongle has to be little endian */
5430 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
5431 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
5432 buf, WL_BSS_INFO_MAX);
5433
5434 if (err)
5435 goto done;
5436
5437 bi = (struct brcmf_bss_info_le *)(buf + 4);
5438 ch.chspec = le16_to_cpu(bi->chanspec);
5439 cfg->d11inf.decchspec(&ch);
5440
5441 if (ch.band == BRCMU_CHAN_BAND_2G)
5442 band = wiphy->bands[NL80211_BAND_2GHZ];
5443 else
5444 band = wiphy->bands[NL80211_BAND_5GHZ];
5445
5446 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band);
5447 notify_channel = ieee80211_get_channel(wiphy, freq);
5448
5449 done:
5450 kfree(buf);
5451 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
5452 conn_info->req_ie, conn_info->req_ie_len,
5453 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
5454 brcmf_dbg(CONN, "Report roaming result\n");
5455
5456 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
5457 brcmf_dbg(TRACE, "Exit\n");
5458 return err;
5459 }
5460
5461 static s32
5462 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
5463 struct net_device *ndev, const struct brcmf_event_msg *e,
5464 bool completed)
5465 {
5466 struct brcmf_if *ifp = netdev_priv(ndev);
5467 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5468 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5469
5470 brcmf_dbg(TRACE, "Enter\n");
5471
5472 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5473 &ifp->vif->sme_state)) {
5474 if (completed) {
5475 brcmf_get_assoc_ies(cfg, ifp);
5476 memcpy(profile->bssid, e->addr, ETH_ALEN);
5477 brcmf_update_bss_info(cfg, ifp);
5478 set_bit(BRCMF_VIF_STATUS_CONNECTED,
5479 &ifp->vif->sme_state);
5480 }
5481 cfg80211_connect_result(ndev,
5482 (u8 *)profile->bssid,
5483 conn_info->req_ie,
5484 conn_info->req_ie_len,
5485 conn_info->resp_ie,
5486 conn_info->resp_ie_len,
5487 completed ? WLAN_STATUS_SUCCESS :
5488 WLAN_STATUS_AUTH_TIMEOUT,
5489 GFP_KERNEL);
5490 brcmf_dbg(CONN, "Report connect result - connection %s\n",
5491 completed ? "succeeded" : "failed");
5492 }
5493 brcmf_dbg(TRACE, "Exit\n");
5494 return 0;
5495 }
5496
5497 static s32
5498 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
5499 struct net_device *ndev,
5500 const struct brcmf_event_msg *e, void *data)
5501 {
5502 static int generation;
5503 u32 event = e->event_code;
5504 u32 reason = e->reason;
5505 struct station_info sinfo;
5506
5507 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
5508 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
5509 ndev != cfg_to_ndev(cfg)) {
5510 brcmf_dbg(CONN, "AP mode link down\n");
5511 complete(&cfg->vif_disabled);
5512 return 0;
5513 }
5514
5515 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
5516 (reason == BRCMF_E_STATUS_SUCCESS)) {
5517 memset(&sinfo, 0, sizeof(sinfo));
5518 if (!data) {
5519 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
5520 return -EINVAL;
5521 }
5522 sinfo.assoc_req_ies = data;
5523 sinfo.assoc_req_ies_len = e->datalen;
5524 generation++;
5525 sinfo.generation = generation;
5526 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
5527 } else if ((event == BRCMF_E_DISASSOC_IND) ||
5528 (event == BRCMF_E_DEAUTH_IND) ||
5529 (event == BRCMF_E_DEAUTH)) {
5530 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
5531 }
5532 return 0;
5533 }
5534
5535 static s32
5536 brcmf_notify_connect_status(struct brcmf_if *ifp,
5537 const struct brcmf_event_msg *e, void *data)
5538 {
5539 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5540 struct net_device *ndev = ifp->ndev;
5541 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5542 struct ieee80211_channel *chan;
5543 s32 err = 0;
5544
5545 if ((e->event_code == BRCMF_E_DEAUTH) ||
5546 (e->event_code == BRCMF_E_DEAUTH_IND) ||
5547 (e->event_code == BRCMF_E_DISASSOC_IND) ||
5548 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
5549 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5550 }
5551
5552 if (brcmf_is_apmode(ifp->vif)) {
5553 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
5554 } else if (brcmf_is_linkup(e)) {
5555 brcmf_dbg(CONN, "Linkup\n");
5556 if (brcmf_is_ibssmode(ifp->vif)) {
5557 brcmf_inform_ibss(cfg, ndev, e->addr);
5558 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
5559 memcpy(profile->bssid, e->addr, ETH_ALEN);
5560 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
5561 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5562 &ifp->vif->sme_state);
5563 set_bit(BRCMF_VIF_STATUS_CONNECTED,
5564 &ifp->vif->sme_state);
5565 } else
5566 brcmf_bss_connect_done(cfg, ndev, e, true);
5567 brcmf_net_setcarrier(ifp, true);
5568 } else if (brcmf_is_linkdown(e)) {
5569 brcmf_dbg(CONN, "Linkdown\n");
5570 if (!brcmf_is_ibssmode(ifp->vif)) {
5571 brcmf_bss_connect_done(cfg, ndev, e, false);
5572 brcmf_link_down(ifp->vif,
5573 brcmf_map_fw_linkdown_reason(e));
5574 brcmf_init_prof(ndev_to_prof(ndev));
5575 if (ndev != cfg_to_ndev(cfg))
5576 complete(&cfg->vif_disabled);
5577 brcmf_net_setcarrier(ifp, false);
5578 }
5579 } else if (brcmf_is_nonetwork(cfg, e)) {
5580 if (brcmf_is_ibssmode(ifp->vif))
5581 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5582 &ifp->vif->sme_state);
5583 else
5584 brcmf_bss_connect_done(cfg, ndev, e, false);
5585 }
5586
5587 return err;
5588 }
5589
5590 static s32
5591 brcmf_notify_roaming_status(struct brcmf_if *ifp,
5592 const struct brcmf_event_msg *e, void *data)
5593 {
5594 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5595 u32 event = e->event_code;
5596 u32 status = e->status;
5597
5598 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
5599 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
5600 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
5601 else
5602 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
5603 }
5604
5605 return 0;
5606 }
5607
5608 static s32
5609 brcmf_notify_mic_status(struct brcmf_if *ifp,
5610 const struct brcmf_event_msg *e, void *data)
5611 {
5612 u16 flags = e->flags;
5613 enum nl80211_key_type key_type;
5614
5615 if (flags & BRCMF_EVENT_MSG_GROUP)
5616 key_type = NL80211_KEYTYPE_GROUP;
5617 else
5618 key_type = NL80211_KEYTYPE_PAIRWISE;
5619
5620 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
5621 NULL, GFP_KERNEL);
5622
5623 return 0;
5624 }
5625
5626 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
5627 const struct brcmf_event_msg *e, void *data)
5628 {
5629 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5630 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
5631 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5632 struct brcmf_cfg80211_vif *vif;
5633
5634 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n",
5635 ifevent->action, ifevent->flags, ifevent->ifidx,
5636 ifevent->bsscfgidx);
5637
5638 mutex_lock(&event->vif_event_lock);
5639 event->action = ifevent->action;
5640 vif = event->vif;
5641
5642 switch (ifevent->action) {
5643 case BRCMF_E_IF_ADD:
5644 /* waiting process may have timed out */
5645 if (!cfg->vif_event.vif) {
5646 mutex_unlock(&event->vif_event_lock);
5647 return -EBADF;
5648 }
5649
5650 ifp->vif = vif;
5651 vif->ifp = ifp;
5652 if (ifp->ndev) {
5653 vif->wdev.netdev = ifp->ndev;
5654 ifp->ndev->ieee80211_ptr = &vif->wdev;
5655 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
5656 }
5657 mutex_unlock(&event->vif_event_lock);
5658 wake_up(&event->vif_wq);
5659 return 0;
5660
5661 case BRCMF_E_IF_DEL:
5662 mutex_unlock(&event->vif_event_lock);
5663 /* event may not be upon user request */
5664 if (brcmf_cfg80211_vif_event_armed(cfg))
5665 wake_up(&event->vif_wq);
5666 return 0;
5667
5668 case BRCMF_E_IF_CHANGE:
5669 mutex_unlock(&event->vif_event_lock);
5670 wake_up(&event->vif_wq);
5671 return 0;
5672
5673 default:
5674 mutex_unlock(&event->vif_event_lock);
5675 break;
5676 }
5677 return -EINVAL;
5678 }
5679
5680 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
5681 {
5682 conf->frag_threshold = (u32)-1;
5683 conf->rts_threshold = (u32)-1;
5684 conf->retry_short = (u32)-1;
5685 conf->retry_long = (u32)-1;
5686 }
5687
5688 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
5689 {
5690 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
5691 brcmf_notify_connect_status);
5692 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
5693 brcmf_notify_connect_status);
5694 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5695 brcmf_notify_connect_status);
5696 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5697 brcmf_notify_connect_status);
5698 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5699 brcmf_notify_connect_status);
5700 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5701 brcmf_notify_connect_status);
5702 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5703 brcmf_notify_roaming_status);
5704 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5705 brcmf_notify_mic_status);
5706 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5707 brcmf_notify_connect_status);
5708 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5709 brcmf_notify_sched_scan_results);
5710 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5711 brcmf_notify_vif_event);
5712 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5713 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5714 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5715 brcmf_p2p_notify_listen_complete);
5716 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5717 brcmf_p2p_notify_action_frame_rx);
5718 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5719 brcmf_p2p_notify_action_tx_complete);
5720 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5721 brcmf_p2p_notify_action_tx_complete);
5722 }
5723
5724 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5725 {
5726 kfree(cfg->conf);
5727 cfg->conf = NULL;
5728 kfree(cfg->extra_buf);
5729 cfg->extra_buf = NULL;
5730 kfree(cfg->wowl.nd);
5731 cfg->wowl.nd = NULL;
5732 kfree(cfg->wowl.nd_info);
5733 cfg->wowl.nd_info = NULL;
5734 kfree(cfg->escan_info.escan_buf);
5735 cfg->escan_info.escan_buf = NULL;
5736 }
5737
5738 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5739 {
5740 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5741 if (!cfg->conf)
5742 goto init_priv_mem_out;
5743 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5744 if (!cfg->extra_buf)
5745 goto init_priv_mem_out;
5746 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL);
5747 if (!cfg->wowl.nd)
5748 goto init_priv_mem_out;
5749 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) +
5750 sizeof(struct cfg80211_wowlan_nd_match *),
5751 GFP_KERNEL);
5752 if (!cfg->wowl.nd_info)
5753 goto init_priv_mem_out;
5754 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL);
5755 if (!cfg->escan_info.escan_buf)
5756 goto init_priv_mem_out;
5757
5758 return 0;
5759
5760 init_priv_mem_out:
5761 brcmf_deinit_priv_mem(cfg);
5762
5763 return -ENOMEM;
5764 }
5765
5766 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5767 {
5768 s32 err = 0;
5769
5770 cfg->scan_request = NULL;
5771 cfg->pwr_save = true;
5772 cfg->active_scan = true; /* we do active scan per default */
5773 cfg->dongle_up = false; /* dongle is not up yet */
5774 err = brcmf_init_priv_mem(cfg);
5775 if (err)
5776 return err;
5777 brcmf_register_event_handlers(cfg);
5778 mutex_init(&cfg->usr_sync);
5779 brcmf_init_escan(cfg);
5780 brcmf_init_conf(cfg->conf);
5781 init_completion(&cfg->vif_disabled);
5782 return err;
5783 }
5784
5785 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5786 {
5787 cfg->dongle_up = false; /* dongle down */
5788 brcmf_abort_scanning(cfg);
5789 brcmf_deinit_priv_mem(cfg);
5790 }
5791
5792 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5793 {
5794 init_waitqueue_head(&event->vif_wq);
5795 mutex_init(&event->vif_event_lock);
5796 }
5797
5798 static s32 brcmf_dongle_roam(struct brcmf_if *ifp)
5799 {
5800 s32 err;
5801 u32 bcn_timeout;
5802 __le32 roamtrigger[2];
5803 __le32 roam_delta[2];
5804
5805 /* Configure beacon timeout value based upon roaming setting */
5806 if (ifp->drvr->settings->roamoff)
5807 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF;
5808 else
5809 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON;
5810 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5811 if (err) {
5812 brcmf_err("bcn_timeout error (%d)\n", err);
5813 goto roam_setup_done;
5814 }
5815
5816 /* Enable/Disable built-in roaming to allow supplicant to take care of
5817 * roaming.
5818 */
5819 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5820 ifp->drvr->settings->roamoff ? "Off" : "On");
5821 err = brcmf_fil_iovar_int_set(ifp, "roam_off",
5822 ifp->drvr->settings->roamoff);
5823 if (err) {
5824 brcmf_err("roam_off error (%d)\n", err);
5825 goto roam_setup_done;
5826 }
5827
5828 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5829 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5830 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5831 (void *)roamtrigger, sizeof(roamtrigger));
5832 if (err) {
5833 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5834 goto roam_setup_done;
5835 }
5836
5837 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5838 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5839 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5840 (void *)roam_delta, sizeof(roam_delta));
5841 if (err) {
5842 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5843 goto roam_setup_done;
5844 }
5845
5846 roam_setup_done:
5847 return err;
5848 }
5849
5850 static s32
5851 brcmf_dongle_scantime(struct brcmf_if *ifp)
5852 {
5853 s32 err = 0;
5854
5855 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5856 BRCMF_SCAN_CHANNEL_TIME);
5857 if (err) {
5858 brcmf_err("Scan assoc time error (%d)\n", err);
5859 goto dongle_scantime_out;
5860 }
5861 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5862 BRCMF_SCAN_UNASSOC_TIME);
5863 if (err) {
5864 brcmf_err("Scan unassoc time error (%d)\n", err);
5865 goto dongle_scantime_out;
5866 }
5867
5868 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5869 BRCMF_SCAN_PASSIVE_TIME);
5870 if (err) {
5871 brcmf_err("Scan passive time error (%d)\n", err);
5872 goto dongle_scantime_out;
5873 }
5874
5875 dongle_scantime_out:
5876 return err;
5877 }
5878
5879 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5880 struct brcmu_chan *ch)
5881 {
5882 u32 ht40_flag;
5883
5884 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5885 if (ch->sb == BRCMU_CHAN_SB_U) {
5886 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5887 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5888 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5889 } else {
5890 /* It should be one of
5891 * IEEE80211_CHAN_NO_HT40 or
5892 * IEEE80211_CHAN_NO_HT40PLUS
5893 */
5894 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5895 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5896 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5897 }
5898 }
5899
5900 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5901 u32 bw_cap[])
5902 {
5903 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5904 struct ieee80211_supported_band *band;
5905 struct ieee80211_channel *channel;
5906 struct wiphy *wiphy;
5907 struct brcmf_chanspec_list *list;
5908 struct brcmu_chan ch;
5909 int err;
5910 u8 *pbuf;
5911 u32 i, j;
5912 u32 total;
5913 u32 chaninfo;
5914 u32 index;
5915
5916 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5917
5918 if (pbuf == NULL)
5919 return -ENOMEM;
5920
5921 list = (struct brcmf_chanspec_list *)pbuf;
5922
5923 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5924 BRCMF_DCMD_MEDLEN);
5925 if (err) {
5926 brcmf_err("get chanspecs error (%d)\n", err);
5927 goto fail_pbuf;
5928 }
5929
5930 wiphy = cfg_to_wiphy(cfg);
5931 band = wiphy->bands[NL80211_BAND_2GHZ];
5932 if (band)
5933 for (i = 0; i < band->n_channels; i++)
5934 band->channels[i].flags = IEEE80211_CHAN_DISABLED;
5935 band = wiphy->bands[NL80211_BAND_5GHZ];
5936 if (band)
5937 for (i = 0; i < band->n_channels; i++)
5938 band->channels[i].flags = IEEE80211_CHAN_DISABLED;
5939
5940 total = le32_to_cpu(list->count);
5941 for (i = 0; i < total; i++) {
5942 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5943 cfg->d11inf.decchspec(&ch);
5944
5945 if (ch.band == BRCMU_CHAN_BAND_2G) {
5946 band = wiphy->bands[NL80211_BAND_2GHZ];
5947 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5948 band = wiphy->bands[NL80211_BAND_5GHZ];
5949 } else {
5950 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5951 continue;
5952 }
5953 if (!band)
5954 continue;
5955 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5956 ch.bw == BRCMU_CHAN_BW_40)
5957 continue;
5958 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5959 ch.bw == BRCMU_CHAN_BW_80)
5960 continue;
5961
5962 channel = band->channels;
5963 index = band->n_channels;
5964 for (j = 0; j < band->n_channels; j++) {
5965 if (channel[j].hw_value == ch.control_ch_num) {
5966 index = j;
5967 break;
5968 }
5969 }
5970 channel[index].center_freq =
5971 ieee80211_channel_to_frequency(ch.control_ch_num,
5972 band->band);
5973 channel[index].hw_value = ch.control_ch_num;
5974
5975 /* assuming the chanspecs order is HT20,
5976 * HT40 upper, HT40 lower, and VHT80.
5977 */
5978 if (ch.bw == BRCMU_CHAN_BW_80) {
5979 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5980 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5981 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5982 } else {
5983 /* enable the channel and disable other bandwidths
5984 * for now as mentioned order assure they are enabled
5985 * for subsequent chanspecs.
5986 */
5987 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5988 IEEE80211_CHAN_NO_80MHZ;
5989 ch.bw = BRCMU_CHAN_BW_20;
5990 cfg->d11inf.encchspec(&ch);
5991 chaninfo = ch.chspec;
5992 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5993 &chaninfo);
5994 if (!err) {
5995 if (chaninfo & WL_CHAN_RADAR)
5996 channel[index].flags |=
5997 (IEEE80211_CHAN_RADAR |
5998 IEEE80211_CHAN_NO_IR);
5999 if (chaninfo & WL_CHAN_PASSIVE)
6000 channel[index].flags |=
6001 IEEE80211_CHAN_NO_IR;
6002 }
6003 }
6004 }
6005
6006 fail_pbuf:
6007 kfree(pbuf);
6008 return err;
6009 }
6010
6011 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
6012 {
6013 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
6014 struct ieee80211_supported_band *band;
6015 struct brcmf_fil_bwcap_le band_bwcap;
6016 struct brcmf_chanspec_list *list;
6017 u8 *pbuf;
6018 u32 val;
6019 int err;
6020 struct brcmu_chan ch;
6021 u32 num_chan;
6022 int i, j;
6023
6024 /* verify support for bw_cap command */
6025 val = WLC_BAND_5G;
6026 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
6027
6028 if (!err) {
6029 /* only set 2G bandwidth using bw_cap command */
6030 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
6031 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
6032 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
6033 sizeof(band_bwcap));
6034 } else {
6035 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
6036 val = WLC_N_BW_40ALL;
6037 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
6038 }
6039
6040 if (!err) {
6041 /* update channel info in 2G band */
6042 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
6043
6044 if (pbuf == NULL)
6045 return -ENOMEM;
6046
6047 ch.band = BRCMU_CHAN_BAND_2G;
6048 ch.bw = BRCMU_CHAN_BW_40;
6049 ch.sb = BRCMU_CHAN_SB_NONE;
6050 ch.chnum = 0;
6051 cfg->d11inf.encchspec(&ch);
6052
6053 /* pass encoded chanspec in query */
6054 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
6055
6056 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
6057 BRCMF_DCMD_MEDLEN);
6058 if (err) {
6059 brcmf_err("get chanspecs error (%d)\n", err);
6060 kfree(pbuf);
6061 return err;
6062 }
6063
6064 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ];
6065 list = (struct brcmf_chanspec_list *)pbuf;
6066 num_chan = le32_to_cpu(list->count);
6067 for (i = 0; i < num_chan; i++) {
6068 ch.chspec = (u16)le32_to_cpu(list->element[i]);
6069 cfg->d11inf.decchspec(&ch);
6070 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
6071 continue;
6072 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
6073 continue;
6074 for (j = 0; j < band->n_channels; j++) {
6075 if (band->channels[j].hw_value == ch.control_ch_num)
6076 break;
6077 }
6078 if (WARN_ON(j == band->n_channels))
6079 continue;
6080
6081 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
6082 }
6083 kfree(pbuf);
6084 }
6085 return err;
6086 }
6087
6088 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
6089 {
6090 u32 band, mimo_bwcap;
6091 int err;
6092
6093 band = WLC_BAND_2G;
6094 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
6095 if (!err) {
6096 bw_cap[NL80211_BAND_2GHZ] = band;
6097 band = WLC_BAND_5G;
6098 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
6099 if (!err) {
6100 bw_cap[NL80211_BAND_5GHZ] = band;
6101 return;
6102 }
6103 WARN_ON(1);
6104 return;
6105 }
6106 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
6107 mimo_bwcap = 0;
6108 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
6109 if (err)
6110 /* assume 20MHz if firmware does not give a clue */
6111 mimo_bwcap = WLC_N_BW_20ALL;
6112
6113 switch (mimo_bwcap) {
6114 case WLC_N_BW_40ALL:
6115 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
6116 /* fall-thru */
6117 case WLC_N_BW_20IN2G_40IN5G:
6118 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
6119 /* fall-thru */
6120 case WLC_N_BW_20ALL:
6121 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
6122 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
6123 break;
6124 default:
6125 brcmf_err("invalid mimo_bw_cap value\n");
6126 }
6127 }
6128
6129 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
6130 u32 bw_cap[2], u32 nchain)
6131 {
6132 band->ht_cap.ht_supported = true;
6133 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
6134 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
6135 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6136 }
6137 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
6138 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
6139 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
6140 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
6141 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
6142 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
6143 }
6144
6145 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
6146 {
6147 u16 mcs_map;
6148 int i;
6149
6150 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
6151 mcs_map = (mcs_map << 2) | supp;
6152
6153 return cpu_to_le16(mcs_map);
6154 }
6155
6156 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
6157 u32 bw_cap[2], u32 nchain, u32 txstreams,
6158 u32 txbf_bfe_cap, u32 txbf_bfr_cap)
6159 {
6160 __le16 mcs_map;
6161
6162 /* not allowed in 2.4G band */
6163 if (band->band == NL80211_BAND_2GHZ)
6164 return;
6165
6166 band->vht_cap.vht_supported = true;
6167 /* 80MHz is mandatory */
6168 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
6169 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
6170 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
6171 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
6172 }
6173 /* all support 256-QAM */
6174 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
6175 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
6176 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
6177
6178 /* Beamforming support information */
6179 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP)
6180 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
6181 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP)
6182 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
6183 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP)
6184 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
6185 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP)
6186 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE;
6187
6188 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) {
6189 band->vht_cap.cap |=
6190 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
6191 band->vht_cap.cap |= ((txstreams - 1) <<
6192 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
6193 band->vht_cap.cap |=
6194 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB;
6195 }
6196 }
6197
6198 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
6199 {
6200 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
6201 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
6202 u32 nmode = 0;
6203 u32 vhtmode = 0;
6204 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
6205 u32 rxchain;
6206 u32 nchain;
6207 int err;
6208 s32 i;
6209 struct ieee80211_supported_band *band;
6210 u32 txstreams = 0;
6211 u32 txbf_bfe_cap = 0;
6212 u32 txbf_bfr_cap = 0;
6213
6214 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
6215 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
6216 if (err) {
6217 brcmf_err("nmode error (%d)\n", err);
6218 } else {
6219 brcmf_get_bwcap(ifp, bw_cap);
6220 }
6221 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
6222 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ],
6223 bw_cap[NL80211_BAND_5GHZ]);
6224
6225 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
6226 if (err) {
6227 brcmf_err("rxchain error (%d)\n", err);
6228 nchain = 1;
6229 } else {
6230 for (nchain = 0; rxchain; nchain++)
6231 rxchain = rxchain & (rxchain - 1);
6232 }
6233 brcmf_dbg(INFO, "nchain=%d\n", nchain);
6234
6235 err = brcmf_construct_chaninfo(cfg, bw_cap);
6236 if (err) {
6237 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
6238 return err;
6239 }
6240
6241 if (vhtmode) {
6242 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams);
6243 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap",
6244 &txbf_bfe_cap);
6245 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap",
6246 &txbf_bfr_cap);
6247 }
6248
6249 wiphy = cfg_to_wiphy(cfg);
6250 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
6251 band = wiphy->bands[i];
6252 if (band == NULL)
6253 continue;
6254
6255 if (nmode)
6256 brcmf_update_ht_cap(band, bw_cap, nchain);
6257 if (vhtmode)
6258 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams,
6259 txbf_bfe_cap, txbf_bfr_cap);
6260 }
6261
6262 return 0;
6263 }
6264
6265 static const struct ieee80211_txrx_stypes
6266 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
6267 [NL80211_IFTYPE_STATION] = {
6268 .tx = 0xffff,
6269 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6270 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6271 },
6272 [NL80211_IFTYPE_P2P_CLIENT] = {
6273 .tx = 0xffff,
6274 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6275 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6276 },
6277 [NL80211_IFTYPE_P2P_GO] = {
6278 .tx = 0xffff,
6279 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
6280 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
6281 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
6282 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
6283 BIT(IEEE80211_STYPE_AUTH >> 4) |
6284 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
6285 BIT(IEEE80211_STYPE_ACTION >> 4)
6286 },
6287 [NL80211_IFTYPE_P2P_DEVICE] = {
6288 .tx = 0xffff,
6289 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6290 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6291 }
6292 };
6293
6294 /**
6295 * brcmf_setup_ifmodes() - determine interface modes and combinations.
6296 *
6297 * @wiphy: wiphy object.
6298 * @ifp: interface object needed for feat module api.
6299 *
6300 * The interface modes and combinations are determined dynamically here
6301 * based on firmware functionality.
6302 *
6303 * no p2p and no mbss:
6304 *
6305 * #STA <= 1, #AP <= 1, channels = 1, 2 total
6306 *
6307 * no p2p and mbss:
6308 *
6309 * #STA <= 1, #AP <= 1, channels = 1, 2 total
6310 * #AP <= 4, matching BI, channels = 1, 4 total
6311 *
6312 * p2p, no mchan, and mbss:
6313 *
6314 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total
6315 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total
6316 * #AP <= 4, matching BI, channels = 1, 4 total
6317 *
6318 * p2p, mchan, and mbss:
6319 *
6320 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total
6321 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total
6322 * #AP <= 4, matching BI, channels = 1, 4 total
6323 */
6324 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
6325 {
6326 struct ieee80211_iface_combination *combo = NULL;
6327 struct ieee80211_iface_limit *c0_limits = NULL;
6328 struct ieee80211_iface_limit *p2p_limits = NULL;
6329 struct ieee80211_iface_limit *mbss_limits = NULL;
6330 bool mbss, p2p;
6331 int i, c, n_combos;
6332
6333 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS);
6334 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P);
6335
6336 n_combos = 1 + !!p2p + !!mbss;
6337 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL);
6338 if (!combo)
6339 goto err;
6340
6341 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
6342 BIT(NL80211_IFTYPE_ADHOC) |
6343 BIT(NL80211_IFTYPE_AP);
6344
6345 c = 0;
6346 i = 0;
6347 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL);
6348 if (!c0_limits)
6349 goto err;
6350 c0_limits[i].max = 1;
6351 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
6352 if (p2p) {
6353 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
6354 combo[c].num_different_channels = 2;
6355 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) |
6356 BIT(NL80211_IFTYPE_P2P_GO) |
6357 BIT(NL80211_IFTYPE_P2P_DEVICE);
6358 c0_limits[i].max = 1;
6359 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE);
6360 c0_limits[i].max = 1;
6361 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
6362 BIT(NL80211_IFTYPE_P2P_GO);
6363 } else {
6364 c0_limits[i].max = 1;
6365 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6366 }
6367 combo[c].num_different_channels = 1;
6368 combo[c].max_interfaces = i;
6369 combo[c].n_limits = i;
6370 combo[c].limits = c0_limits;
6371
6372 if (p2p) {
6373 c++;
6374 i = 0;
6375 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL);
6376 if (!p2p_limits)
6377 goto err;
6378 p2p_limits[i].max = 1;
6379 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
6380 p2p_limits[i].max = 1;
6381 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6382 p2p_limits[i].max = 1;
6383 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT);
6384 p2p_limits[i].max = 1;
6385 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE);
6386 combo[c].num_different_channels = 1;
6387 combo[c].max_interfaces = i;
6388 combo[c].n_limits = i;
6389 combo[c].limits = p2p_limits;
6390 }
6391
6392 if (mbss) {
6393 c++;
6394 i = 0;
6395 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL);
6396 if (!mbss_limits)
6397 goto err;
6398 mbss_limits[i].max = 4;
6399 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6400 combo[c].beacon_int_infra_match = true;
6401 combo[c].num_different_channels = 1;
6402 combo[c].max_interfaces = 4;
6403 combo[c].n_limits = i;
6404 combo[c].limits = mbss_limits;
6405 }
6406
6407 wiphy->n_iface_combinations = n_combos;
6408 wiphy->iface_combinations = combo;
6409 return 0;
6410
6411 err:
6412 kfree(c0_limits);
6413 kfree(p2p_limits);
6414 kfree(mbss_limits);
6415 kfree(combo);
6416 return -ENOMEM;
6417 }
6418
6419 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
6420 {
6421 /* scheduled scan settings */
6422 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
6423 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
6424 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
6425 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
6426 }
6427
6428 #ifdef CONFIG_PM
6429 static struct wiphy_wowlan_support brcmf_wowlan_support = {
6430 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
6431 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
6432 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
6433 .pattern_min_len = 1,
6434 .max_pkt_offset = 1500,
6435 };
6436 #endif
6437
6438 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp)
6439 {
6440 #ifdef CONFIG_PM
6441 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
6442
6443 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) {
6444 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) {
6445 brcmf_wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT;
6446 init_waitqueue_head(&cfg->wowl.nd_data_wait);
6447 }
6448 }
6449 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) {
6450 brcmf_wowlan_support.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY;
6451 brcmf_wowlan_support.flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE;
6452 }
6453
6454 wiphy->wowlan = &brcmf_wowlan_support;
6455 #endif
6456 }
6457
6458 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
6459 {
6460 struct brcmf_pub *drvr = ifp->drvr;
6461 const struct ieee80211_iface_combination *combo;
6462 struct ieee80211_supported_band *band;
6463 u16 max_interfaces = 0;
6464 __le32 bandlist[3];
6465 u32 n_bands;
6466 int err, i;
6467
6468 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
6469 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
6470 wiphy->max_num_pmkids = BRCMF_MAXPMKID;
6471
6472 err = brcmf_setup_ifmodes(wiphy, ifp);
6473 if (err)
6474 return err;
6475
6476 for (i = 0, combo = wiphy->iface_combinations;
6477 i < wiphy->n_iface_combinations; i++, combo++) {
6478 max_interfaces = max(max_interfaces, combo->max_interfaces);
6479 }
6480
6481 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses);
6482 i++) {
6483 u8 *addr = drvr->addresses[i].addr;
6484
6485 memcpy(addr, drvr->mac, ETH_ALEN);
6486 if (i) {
6487 addr[0] |= BIT(1);
6488 addr[ETH_ALEN - 1] ^= i;
6489 }
6490 }
6491 wiphy->addresses = drvr->addresses;
6492 wiphy->n_addresses = i;
6493
6494 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
6495 wiphy->cipher_suites = brcmf_cipher_suites;
6496 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites);
6497 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
6498 wiphy->n_cipher_suites--;
6499 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) |
6500 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) |
6501 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST);
6502
6503 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
6504 WIPHY_FLAG_OFFCHAN_TX |
6505 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
6506 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS))
6507 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
6508 if (!ifp->drvr->settings->roamoff)
6509 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
6510 wiphy->mgmt_stypes = brcmf_txrx_stypes;
6511 wiphy->max_remain_on_channel_duration = 5000;
6512 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO))
6513 brcmf_wiphy_pno_params(wiphy);
6514
6515 /* vendor commands/events support */
6516 wiphy->vendor_commands = brcmf_vendor_cmds;
6517 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
6518
6519 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
6520 brcmf_wiphy_wowl_params(wiphy, ifp);
6521 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist,
6522 sizeof(bandlist));
6523 if (err) {
6524 brcmf_err("could not obtain band info: err=%d\n", err);
6525 return err;
6526 }
6527 /* first entry in bandlist is number of bands */
6528 n_bands = le32_to_cpu(bandlist[0]);
6529 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) {
6530 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) {
6531 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
6532 GFP_KERNEL);
6533 if (!band)
6534 return -ENOMEM;
6535
6536 band->channels = kmemdup(&__wl_2ghz_channels,
6537 sizeof(__wl_2ghz_channels),
6538 GFP_KERNEL);
6539 if (!band->channels) {
6540 kfree(band);
6541 return -ENOMEM;
6542 }
6543
6544 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels);
6545 wiphy->bands[NL80211_BAND_2GHZ] = band;
6546 }
6547 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) {
6548 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz),
6549 GFP_KERNEL);
6550 if (!band)
6551 return -ENOMEM;
6552
6553 band->channels = kmemdup(&__wl_5ghz_channels,
6554 sizeof(__wl_5ghz_channels),
6555 GFP_KERNEL);
6556 if (!band->channels) {
6557 kfree(band);
6558 return -ENOMEM;
6559 }
6560
6561 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels);
6562 wiphy->bands[NL80211_BAND_5GHZ] = band;
6563 }
6564 }
6565 err = brcmf_setup_wiphybands(wiphy);
6566 return err;
6567 }
6568
6569 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
6570 {
6571 struct net_device *ndev;
6572 struct wireless_dev *wdev;
6573 struct brcmf_if *ifp;
6574 s32 power_mode;
6575 s32 err = 0;
6576
6577 if (cfg->dongle_up)
6578 return err;
6579
6580 ndev = cfg_to_ndev(cfg);
6581 wdev = ndev->ieee80211_ptr;
6582 ifp = netdev_priv(ndev);
6583
6584 /* make sure RF is ready for work */
6585 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
6586
6587 brcmf_dongle_scantime(ifp);
6588
6589 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
6590 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
6591 if (err)
6592 goto default_conf_out;
6593 brcmf_dbg(INFO, "power save set to %s\n",
6594 (power_mode ? "enabled" : "disabled"));
6595
6596 err = brcmf_dongle_roam(ifp);
6597 if (err)
6598 goto default_conf_out;
6599 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
6600 NULL, NULL);
6601 if (err)
6602 goto default_conf_out;
6603
6604 brcmf_configure_arp_nd_offload(ifp, true);
6605
6606 cfg->dongle_up = true;
6607 default_conf_out:
6608
6609 return err;
6610
6611 }
6612
6613 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
6614 {
6615 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
6616
6617 return brcmf_config_dongle(ifp->drvr->config);
6618 }
6619
6620 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
6621 {
6622 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6623
6624 /*
6625 * While going down, if associated with AP disassociate
6626 * from AP to save power
6627 */
6628 if (check_vif_up(ifp->vif)) {
6629 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED);
6630
6631 /* Make sure WPA_Supplicant receives all the event
6632 generated due to DISASSOC call to the fw to keep
6633 the state fw and WPA_Supplicant state consistent
6634 */
6635 brcmf_delay(500);
6636 }
6637
6638 brcmf_abort_scanning(cfg);
6639 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
6640
6641 return 0;
6642 }
6643
6644 s32 brcmf_cfg80211_up(struct net_device *ndev)
6645 {
6646 struct brcmf_if *ifp = netdev_priv(ndev);
6647 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6648 s32 err = 0;
6649
6650 mutex_lock(&cfg->usr_sync);
6651 err = __brcmf_cfg80211_up(ifp);
6652 mutex_unlock(&cfg->usr_sync);
6653
6654 return err;
6655 }
6656
6657 s32 brcmf_cfg80211_down(struct net_device *ndev)
6658 {
6659 struct brcmf_if *ifp = netdev_priv(ndev);
6660 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6661 s32 err = 0;
6662
6663 mutex_lock(&cfg->usr_sync);
6664 err = __brcmf_cfg80211_down(ifp);
6665 mutex_unlock(&cfg->usr_sync);
6666
6667 return err;
6668 }
6669
6670 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
6671 {
6672 struct wireless_dev *wdev = &ifp->vif->wdev;
6673
6674 return wdev->iftype;
6675 }
6676
6677 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
6678 unsigned long state)
6679 {
6680 struct brcmf_cfg80211_vif *vif;
6681
6682 list_for_each_entry(vif, &cfg->vif_list, list) {
6683 if (test_bit(state, &vif->sme_state))
6684 return true;
6685 }
6686 return false;
6687 }
6688
6689 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
6690 u8 action)
6691 {
6692 u8 evt_action;
6693
6694 mutex_lock(&event->vif_event_lock);
6695 evt_action = event->action;
6696 mutex_unlock(&event->vif_event_lock);
6697 return evt_action == action;
6698 }
6699
6700 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
6701 struct brcmf_cfg80211_vif *vif)
6702 {
6703 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6704
6705 mutex_lock(&event->vif_event_lock);
6706 event->vif = vif;
6707 event->action = 0;
6708 mutex_unlock(&event->vif_event_lock);
6709 }
6710
6711 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
6712 {
6713 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6714 bool armed;
6715
6716 mutex_lock(&event->vif_event_lock);
6717 armed = event->vif != NULL;
6718 mutex_unlock(&event->vif_event_lock);
6719
6720 return armed;
6721 }
6722
6723 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg,
6724 u8 action, ulong timeout)
6725 {
6726 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6727
6728 return wait_event_timeout(event->vif_wq,
6729 vif_event_equals(event, action), timeout);
6730 }
6731
6732 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2],
6733 struct brcmf_fil_country_le *ccreq)
6734 {
6735 struct brcmfmac_pd_cc *country_codes;
6736 struct brcmfmac_pd_cc_entry *cc;
6737 s32 found_index;
6738 int i;
6739
6740 country_codes = drvr->settings->country_codes;
6741 if (!country_codes) {
6742 brcmf_dbg(TRACE, "No country codes configured for device\n");
6743 return -EINVAL;
6744 }
6745
6746 if ((alpha2[0] == ccreq->country_abbrev[0]) &&
6747 (alpha2[1] == ccreq->country_abbrev[1])) {
6748 brcmf_dbg(TRACE, "Country code already set\n");
6749 return -EAGAIN;
6750 }
6751
6752 found_index = -1;
6753 for (i = 0; i < country_codes->table_size; i++) {
6754 cc = &country_codes->table[i];
6755 if ((cc->iso3166[0] == '\0') && (found_index == -1))
6756 found_index = i;
6757 if ((cc->iso3166[0] == alpha2[0]) &&
6758 (cc->iso3166[1] == alpha2[1])) {
6759 found_index = i;
6760 break;
6761 }
6762 }
6763 if (found_index == -1) {
6764 brcmf_dbg(TRACE, "No country code match found\n");
6765 return -EINVAL;
6766 }
6767 memset(ccreq, 0, sizeof(*ccreq));
6768 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev);
6769 memcpy(ccreq->ccode, country_codes->table[found_index].cc,
6770 BRCMF_COUNTRY_BUF_SZ);
6771 ccreq->country_abbrev[0] = alpha2[0];
6772 ccreq->country_abbrev[1] = alpha2[1];
6773 ccreq->country_abbrev[2] = 0;
6774
6775 return 0;
6776 }
6777
6778 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
6779 struct regulatory_request *req)
6780 {
6781 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
6782 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
6783 struct brcmf_fil_country_le ccreq;
6784 s32 err;
6785 int i;
6786
6787 /* ignore non-ISO3166 country codes */
6788 for (i = 0; i < sizeof(req->alpha2); i++)
6789 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
6790 brcmf_err("not a ISO3166 code (0x%02x 0x%02x)\n",
6791 req->alpha2[0], req->alpha2[1]);
6792 return;
6793 }
6794
6795 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator,
6796 req->alpha2[0], req->alpha2[1]);
6797
6798 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq));
6799 if (err) {
6800 brcmf_err("Country code iovar returned err = %d\n", err);
6801 return;
6802 }
6803
6804 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq);
6805 if (err)
6806 return;
6807
6808 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
6809 if (err) {
6810 brcmf_err("Firmware rejected country setting\n");
6811 return;
6812 }
6813 brcmf_setup_wiphybands(wiphy);
6814 }
6815
6816 static void brcmf_free_wiphy(struct wiphy *wiphy)
6817 {
6818 int i;
6819
6820 if (!wiphy)
6821 return;
6822
6823 if (wiphy->iface_combinations) {
6824 for (i = 0; i < wiphy->n_iface_combinations; i++)
6825 kfree(wiphy->iface_combinations[i].limits);
6826 }
6827 kfree(wiphy->iface_combinations);
6828 if (wiphy->bands[NL80211_BAND_2GHZ]) {
6829 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels);
6830 kfree(wiphy->bands[NL80211_BAND_2GHZ]);
6831 }
6832 if (wiphy->bands[NL80211_BAND_5GHZ]) {
6833 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels);
6834 kfree(wiphy->bands[NL80211_BAND_5GHZ]);
6835 }
6836 wiphy_free(wiphy);
6837 }
6838
6839 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
6840 struct device *busdev,
6841 bool p2pdev_forced)
6842 {
6843 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev;
6844 struct brcmf_cfg80211_info *cfg;
6845 struct wiphy *wiphy;
6846 struct cfg80211_ops *ops;
6847 struct brcmf_cfg80211_vif *vif;
6848 struct brcmf_if *ifp;
6849 s32 err = 0;
6850 s32 io_type;
6851 u16 *cap = NULL;
6852
6853 if (!ndev) {
6854 brcmf_err("ndev is invalid\n");
6855 return NULL;
6856 }
6857
6858 ops = kmemdup(&brcmf_cfg80211_ops, sizeof(*ops), GFP_KERNEL);
6859 if (!ops)
6860 return NULL;
6861
6862 ifp = netdev_priv(ndev);
6863 #ifdef CONFIG_PM
6864 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK))
6865 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data;
6866 #endif
6867 wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info));
6868 if (!wiphy) {
6869 brcmf_err("Could not allocate wiphy device\n");
6870 return NULL;
6871 }
6872 memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN);
6873 set_wiphy_dev(wiphy, busdev);
6874
6875 cfg = wiphy_priv(wiphy);
6876 cfg->wiphy = wiphy;
6877 cfg->ops = ops;
6878 cfg->pub = drvr;
6879 init_vif_event(&cfg->vif_event);
6880 INIT_LIST_HEAD(&cfg->vif_list);
6881
6882 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION);
6883 if (IS_ERR(vif))
6884 goto wiphy_out;
6885
6886 vif->ifp = ifp;
6887 vif->wdev.netdev = ndev;
6888 ndev->ieee80211_ptr = &vif->wdev;
6889 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
6890
6891 err = wl_init_priv(cfg);
6892 if (err) {
6893 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6894 brcmf_free_vif(vif);
6895 goto wiphy_out;
6896 }
6897 ifp->vif = vif;
6898
6899 /* determine d11 io type before wiphy setup */
6900 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6901 if (err) {
6902 brcmf_err("Failed to get D11 version (%d)\n", err);
6903 goto priv_out;
6904 }
6905 cfg->d11inf.io_type = (u8)io_type;
6906 brcmu_d11_attach(&cfg->d11inf);
6907
6908 err = brcmf_setup_wiphy(wiphy, ifp);
6909 if (err < 0)
6910 goto priv_out;
6911
6912 brcmf_dbg(INFO, "Registering custom regulatory\n");
6913 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6914 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6915 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6916
6917 /* firmware defaults to 40MHz disabled in 2G band. We signal
6918 * cfg80211 here that we do and have it decide we can enable
6919 * it. But first check if device does support 2G operation.
6920 */
6921 if (wiphy->bands[NL80211_BAND_2GHZ]) {
6922 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap;
6923 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6924 }
6925 err = wiphy_register(wiphy);
6926 if (err < 0) {
6927 brcmf_err("Could not register wiphy device (%d)\n", err);
6928 goto priv_out;
6929 }
6930
6931 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6932 * setup 40MHz in 2GHz band and enable OBSS scanning.
6933 */
6934 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6935 err = brcmf_enable_bw40_2g(cfg);
6936 if (!err)
6937 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6938 BRCMF_OBSS_COEX_AUTO);
6939 else
6940 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6941 }
6942 /* p2p might require that "if-events" get processed by fweh. So
6943 * activate the already registered event handlers now and activate
6944 * the rest when initialization has completed. drvr->config needs to
6945 * be assigned before activating events.
6946 */
6947 drvr->config = cfg;
6948 err = brcmf_fweh_activate_events(ifp);
6949 if (err) {
6950 brcmf_err("FWEH activation failed (%d)\n", err);
6951 goto wiphy_unreg_out;
6952 }
6953
6954 err = brcmf_p2p_attach(cfg, p2pdev_forced);
6955 if (err) {
6956 brcmf_err("P2P initilisation failed (%d)\n", err);
6957 goto wiphy_unreg_out;
6958 }
6959 err = brcmf_btcoex_attach(cfg);
6960 if (err) {
6961 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6962 brcmf_p2p_detach(&cfg->p2p);
6963 goto wiphy_unreg_out;
6964 }
6965
6966 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) {
6967 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
6968 if (err) {
6969 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
6970 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6971 } else {
6972 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6973 brcmf_notify_tdls_peer_event);
6974 }
6975 }
6976
6977 /* (re-) activate FWEH event handling */
6978 err = brcmf_fweh_activate_events(ifp);
6979 if (err) {
6980 brcmf_err("FWEH activation failed (%d)\n", err);
6981 goto wiphy_unreg_out;
6982 }
6983
6984 /* Fill in some of the advertised nl80211 supported features */
6985 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) {
6986 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6987 #ifdef CONFIG_PM
6988 if (wiphy->wowlan &&
6989 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT)
6990 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6991 #endif
6992 }
6993
6994 return cfg;
6995
6996 wiphy_unreg_out:
6997 wiphy_unregister(cfg->wiphy);
6998 priv_out:
6999 wl_deinit_priv(cfg);
7000 brcmf_free_vif(vif);
7001 ifp->vif = NULL;
7002 wiphy_out:
7003 brcmf_free_wiphy(wiphy);
7004 kfree(ops);
7005 return NULL;
7006 }
7007
7008 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
7009 {
7010 if (!cfg)
7011 return;
7012
7013 brcmf_btcoex_detach(cfg);
7014 wiphy_unregister(cfg->wiphy);
7015 kfree(cfg->ops);
7016 wl_deinit_priv(cfg);
7017 brcmf_free_wiphy(cfg->wiphy);
7018 }
Linux kernel - Deliverables
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