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Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
[deliverable/linux.git] / drivers / net / wireless / 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 BRCMF_IFACE_MAX_CNT 3
56
57 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
58 #define WPA_OUI_TYPE 1
59 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
60 #define WME_OUI_TYPE 2
61 #define WPS_OUI_TYPE 4
62
63 #define VS_IE_FIXED_HDR_LEN 6
64 #define WPA_IE_VERSION_LEN 2
65 #define WPA_IE_MIN_OUI_LEN 4
66 #define WPA_IE_SUITE_COUNT_LEN 2
67
68 #define WPA_CIPHER_NONE 0 /* None */
69 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
70 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
71 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
72 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
73
74 #define RSN_AKM_NONE 0 /* None (IBSS) */
75 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
76 #define RSN_AKM_PSK 2 /* Pre-shared Key */
77 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
78 #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
79
80 #define VNDR_IE_CMD_LEN 4 /* length of the set command
81 * string :"add", "del" (+ NUL)
82 */
83 #define VNDR_IE_COUNT_OFFSET 4
84 #define VNDR_IE_PKTFLAG_OFFSET 8
85 #define VNDR_IE_VSIE_OFFSET 12
86 #define VNDR_IE_HDR_SIZE 12
87 #define VNDR_IE_PARSE_LIMIT 5
88
89 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
90 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
91
92 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
93 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
94 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
95
96 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
97 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
98
99 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
100 {
101 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
102 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
103 vif->sme_state);
104 return false;
105 }
106 return true;
107 }
108
109 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
110 #define RATETAB_ENT(_rateid, _flags) \
111 { \
112 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
113 .hw_value = (_rateid), \
114 .flags = (_flags), \
115 }
116
117 static struct ieee80211_rate __wl_rates[] = {
118 RATETAB_ENT(BRCM_RATE_1M, 0),
119 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
122 RATETAB_ENT(BRCM_RATE_6M, 0),
123 RATETAB_ENT(BRCM_RATE_9M, 0),
124 RATETAB_ENT(BRCM_RATE_12M, 0),
125 RATETAB_ENT(BRCM_RATE_18M, 0),
126 RATETAB_ENT(BRCM_RATE_24M, 0),
127 RATETAB_ENT(BRCM_RATE_36M, 0),
128 RATETAB_ENT(BRCM_RATE_48M, 0),
129 RATETAB_ENT(BRCM_RATE_54M, 0),
130 };
131
132 #define wl_a_rates (__wl_rates + 4)
133 #define wl_a_rates_size 8
134 #define wl_g_rates (__wl_rates + 0)
135 #define wl_g_rates_size 12
136
137 /* Band templates duplicated per wiphy. The channel info
138 * is filled in after querying the device.
139 */
140 static const struct ieee80211_supported_band __wl_band_2ghz = {
141 .band = IEEE80211_BAND_2GHZ,
142 .bitrates = wl_g_rates,
143 .n_bitrates = wl_g_rates_size,
144 };
145
146 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
147 .band = IEEE80211_BAND_5GHZ,
148 .bitrates = wl_a_rates,
149 .n_bitrates = wl_a_rates_size,
150 };
151
152 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
153 * By default world regulatory domain defined in reg.c puts the flags
154 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
155 * With respect to these flags, wpa_supplicant doesn't * start p2p
156 * operations on 5GHz channels. All the changes in world regulatory
157 * domain are to be done here.
158 */
159 static const struct ieee80211_regdomain brcmf_regdom = {
160 .n_reg_rules = 4,
161 .alpha2 = "99",
162 .reg_rules = {
163 /* IEEE 802.11b/g, channels 1..11 */
164 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
165 /* If any */
166 /* IEEE 802.11 channel 14 - Only JP enables
167 * this and for 802.11b only
168 */
169 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
170 /* IEEE 802.11a, channel 36..64 */
171 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
172 /* IEEE 802.11a, channel 100..165 */
173 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
174 };
175
176 static const u32 __wl_cipher_suites[] = {
177 WLAN_CIPHER_SUITE_WEP40,
178 WLAN_CIPHER_SUITE_WEP104,
179 WLAN_CIPHER_SUITE_TKIP,
180 WLAN_CIPHER_SUITE_CCMP,
181 WLAN_CIPHER_SUITE_AES_CMAC,
182 };
183
184 /* Vendor specific ie. id = 221, oui and type defines exact ie */
185 struct brcmf_vs_tlv {
186 u8 id;
187 u8 len;
188 u8 oui[3];
189 u8 oui_type;
190 };
191
192 struct parsed_vndr_ie_info {
193 u8 *ie_ptr;
194 u32 ie_len; /* total length including id & length field */
195 struct brcmf_vs_tlv vndrie;
196 };
197
198 struct parsed_vndr_ies {
199 u32 count;
200 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
201 };
202
203 static int brcmf_roamoff;
204 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
205 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
206
207 /* Quarter dBm units to mW
208 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
209 * Table is offset so the last entry is largest mW value that fits in
210 * a u16.
211 */
212
213 #define QDBM_OFFSET 153 /* Offset for first entry */
214 #define QDBM_TABLE_LEN 40 /* Table size */
215
216 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
217 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
218 */
219 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
220
221 /* Largest mW value that will round down to the last table entry,
222 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
223 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
224 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
225 */
226 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
227
228 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
229 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
230 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
231 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
232 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
233 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
234 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
235 };
236
237 static u16 brcmf_qdbm_to_mw(u8 qdbm)
238 {
239 uint factor = 1;
240 int idx = qdbm - QDBM_OFFSET;
241
242 if (idx >= QDBM_TABLE_LEN)
243 /* clamp to max u16 mW value */
244 return 0xFFFF;
245
246 /* scale the qdBm index up to the range of the table 0-40
247 * where an offset of 40 qdBm equals a factor of 10 mW.
248 */
249 while (idx < 0) {
250 idx += 40;
251 factor *= 10;
252 }
253
254 /* return the mW value scaled down to the correct factor of 10,
255 * adding in factor/2 to get proper rounding.
256 */
257 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
258 }
259
260 static u8 brcmf_mw_to_qdbm(u16 mw)
261 {
262 u8 qdbm;
263 int offset;
264 uint mw_uint = mw;
265 uint boundary;
266
267 /* handle boundary case */
268 if (mw_uint <= 1)
269 return 0;
270
271 offset = QDBM_OFFSET;
272
273 /* move mw into the range of the table */
274 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
275 mw_uint *= 10;
276 offset -= 40;
277 }
278
279 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
280 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
281 nqdBm_to_mW_map[qdbm]) / 2;
282 if (mw_uint < boundary)
283 break;
284 }
285
286 qdbm += (u8) offset;
287
288 return qdbm;
289 }
290
291 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
292 struct cfg80211_chan_def *ch)
293 {
294 struct brcmu_chan ch_inf;
295 s32 primary_offset;
296
297 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
298 ch->chan->center_freq, ch->center_freq1, ch->width);
299 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
300 primary_offset = ch->center_freq1 - ch->chan->center_freq;
301 switch (ch->width) {
302 case NL80211_CHAN_WIDTH_20:
303 case NL80211_CHAN_WIDTH_20_NOHT:
304 ch_inf.bw = BRCMU_CHAN_BW_20;
305 WARN_ON(primary_offset != 0);
306 break;
307 case NL80211_CHAN_WIDTH_40:
308 ch_inf.bw = BRCMU_CHAN_BW_40;
309 if (primary_offset < 0)
310 ch_inf.sb = BRCMU_CHAN_SB_U;
311 else
312 ch_inf.sb = BRCMU_CHAN_SB_L;
313 break;
314 case NL80211_CHAN_WIDTH_80:
315 ch_inf.bw = BRCMU_CHAN_BW_80;
316 if (primary_offset < 0) {
317 if (primary_offset < -CH_10MHZ_APART)
318 ch_inf.sb = BRCMU_CHAN_SB_UU;
319 else
320 ch_inf.sb = BRCMU_CHAN_SB_UL;
321 } else {
322 if (primary_offset > CH_10MHZ_APART)
323 ch_inf.sb = BRCMU_CHAN_SB_LL;
324 else
325 ch_inf.sb = BRCMU_CHAN_SB_LU;
326 }
327 break;
328 case NL80211_CHAN_WIDTH_80P80:
329 case NL80211_CHAN_WIDTH_160:
330 case NL80211_CHAN_WIDTH_5:
331 case NL80211_CHAN_WIDTH_10:
332 default:
333 WARN_ON_ONCE(1);
334 }
335 switch (ch->chan->band) {
336 case IEEE80211_BAND_2GHZ:
337 ch_inf.band = BRCMU_CHAN_BAND_2G;
338 break;
339 case IEEE80211_BAND_5GHZ:
340 ch_inf.band = BRCMU_CHAN_BAND_5G;
341 break;
342 case IEEE80211_BAND_60GHZ:
343 default:
344 WARN_ON_ONCE(1);
345 }
346 d11inf->encchspec(&ch_inf);
347
348 return ch_inf.chspec;
349 }
350
351 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
352 struct ieee80211_channel *ch)
353 {
354 struct brcmu_chan ch_inf;
355
356 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
357 ch_inf.bw = BRCMU_CHAN_BW_20;
358 d11inf->encchspec(&ch_inf);
359
360 return ch_inf.chspec;
361 }
362
363 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
364 * triples, returning a pointer to the substring whose first element
365 * matches tag
366 */
367 const struct brcmf_tlv *
368 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
369 {
370 const struct brcmf_tlv *elt = buf;
371 int totlen = buflen;
372
373 /* find tagged parameter */
374 while (totlen >= TLV_HDR_LEN) {
375 int len = elt->len;
376
377 /* validate remaining totlen */
378 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
379 return elt;
380
381 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
382 totlen -= (len + TLV_HDR_LEN);
383 }
384
385 return NULL;
386 }
387
388 /* Is any of the tlvs the expected entry? If
389 * not update the tlvs buffer pointer/length.
390 */
391 static bool
392 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
393 const u8 *oui, u32 oui_len, u8 type)
394 {
395 /* If the contents match the OUI and the type */
396 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
397 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
398 type == ie[TLV_BODY_OFF + oui_len]) {
399 return true;
400 }
401
402 if (tlvs == NULL)
403 return false;
404 /* point to the next ie */
405 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
406 /* calculate the length of the rest of the buffer */
407 *tlvs_len -= (int)(ie - *tlvs);
408 /* update the pointer to the start of the buffer */
409 *tlvs = ie;
410
411 return false;
412 }
413
414 static struct brcmf_vs_tlv *
415 brcmf_find_wpaie(const u8 *parse, u32 len)
416 {
417 const struct brcmf_tlv *ie;
418
419 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
420 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
421 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
422 return (struct brcmf_vs_tlv *)ie;
423 }
424 return NULL;
425 }
426
427 static struct brcmf_vs_tlv *
428 brcmf_find_wpsie(const u8 *parse, u32 len)
429 {
430 const struct brcmf_tlv *ie;
431
432 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
433 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
434 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
435 return (struct brcmf_vs_tlv *)ie;
436 }
437 return NULL;
438 }
439
440
441 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
442 struct brcmf_wsec_key_le *key_le)
443 {
444 key_le->index = cpu_to_le32(key->index);
445 key_le->len = cpu_to_le32(key->len);
446 key_le->algo = cpu_to_le32(key->algo);
447 key_le->flags = cpu_to_le32(key->flags);
448 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
449 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
450 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
451 memcpy(key_le->data, key->data, sizeof(key->data));
452 memcpy(key_le->ea, key->ea, sizeof(key->ea));
453 }
454
455 static int
456 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key)
457 {
458 int err;
459 struct brcmf_wsec_key_le key_le;
460
461 convert_key_from_CPU(key, &key_le);
462
463 brcmf_netdev_wait_pend8021x(ifp);
464
465 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le,
466 sizeof(key_le));
467
468 if (err)
469 brcmf_err("wsec_key error (%d)\n", err);
470 return err;
471 }
472
473 static s32
474 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
475 {
476 s32 err;
477 u32 mode;
478
479 if (enable)
480 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
481 else
482 mode = 0;
483
484 /* Try to set and enable ARP offload feature, this may fail, then it */
485 /* is simply not supported and err 0 will be returned */
486 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
487 if (err) {
488 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
489 mode, err);
490 err = 0;
491 } else {
492 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
493 if (err) {
494 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
495 enable, err);
496 err = 0;
497 } else
498 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
499 enable, mode);
500 }
501
502 return err;
503 }
504
505 static void
506 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
507 {
508 struct brcmf_cfg80211_vif *vif;
509 struct brcmf_if *ifp;
510
511 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
512 ifp = vif->ifp;
513
514 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
515 (wdev->iftype == NL80211_IFTYPE_AP) ||
516 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
517 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
518 ADDR_DIRECT);
519 else
520 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
521 ADDR_INDIRECT);
522 }
523
524 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
525 {
526 struct brcmf_mbss_ssid_le mbss_ssid_le;
527 int bsscfgidx;
528 int err;
529
530 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
531 bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr);
532 if (bsscfgidx < 0)
533 return bsscfgidx;
534
535 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
536 mbss_ssid_le.SSID_len = cpu_to_le32(5);
537 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
538
539 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
540 sizeof(mbss_ssid_le));
541 if (err < 0)
542 brcmf_err("setting ssid failed %d\n", err);
543
544 return err;
545 }
546
547 /**
548 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
549 *
550 * @wiphy: wiphy device of new interface.
551 * @name: name of the new interface.
552 * @flags: not used.
553 * @params: contains mac address for AP device.
554 */
555 static
556 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
557 u32 *flags, struct vif_params *params)
558 {
559 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
560 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
561 struct brcmf_cfg80211_vif *vif;
562 int err;
563
564 if (brcmf_cfg80211_vif_event_armed(cfg))
565 return ERR_PTR(-EBUSY);
566
567 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
568
569 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false);
570 if (IS_ERR(vif))
571 return (struct wireless_dev *)vif;
572
573 brcmf_cfg80211_arm_vif_event(cfg, vif);
574
575 err = brcmf_cfg80211_request_ap_if(ifp);
576 if (err) {
577 brcmf_cfg80211_arm_vif_event(cfg, NULL);
578 goto fail;
579 }
580
581 /* wait for firmware event */
582 err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
583 msecs_to_jiffies(1500));
584 brcmf_cfg80211_arm_vif_event(cfg, NULL);
585 if (!err) {
586 brcmf_err("timeout occurred\n");
587 err = -EIO;
588 goto fail;
589 }
590
591 /* interface created in firmware */
592 ifp = vif->ifp;
593 if (!ifp) {
594 brcmf_err("no if pointer provided\n");
595 err = -ENOENT;
596 goto fail;
597 }
598
599 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
600 err = brcmf_net_attach(ifp, true);
601 if (err) {
602 brcmf_err("Registering netdevice failed\n");
603 goto fail;
604 }
605
606 return &ifp->vif->wdev;
607
608 fail:
609 brcmf_free_vif(vif);
610 return ERR_PTR(err);
611 }
612
613 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
614 {
615 enum nl80211_iftype iftype;
616
617 iftype = vif->wdev.iftype;
618 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
619 }
620
621 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
622 {
623 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
624 }
625
626 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
627 const char *name,
628 enum nl80211_iftype type,
629 u32 *flags,
630 struct vif_params *params)
631 {
632 struct wireless_dev *wdev;
633
634 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
635 switch (type) {
636 case NL80211_IFTYPE_ADHOC:
637 case NL80211_IFTYPE_STATION:
638 case NL80211_IFTYPE_AP_VLAN:
639 case NL80211_IFTYPE_WDS:
640 case NL80211_IFTYPE_MONITOR:
641 case NL80211_IFTYPE_MESH_POINT:
642 return ERR_PTR(-EOPNOTSUPP);
643 case NL80211_IFTYPE_AP:
644 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
645 if (!IS_ERR(wdev))
646 brcmf_cfg80211_update_proto_addr_mode(wdev);
647 return wdev;
648 case NL80211_IFTYPE_P2P_CLIENT:
649 case NL80211_IFTYPE_P2P_GO:
650 case NL80211_IFTYPE_P2P_DEVICE:
651 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
652 if (!IS_ERR(wdev))
653 brcmf_cfg80211_update_proto_addr_mode(wdev);
654 return wdev;
655 case NL80211_IFTYPE_UNSPECIFIED:
656 default:
657 return ERR_PTR(-EINVAL);
658 }
659 }
660
661 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
662 {
663 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
664 brcmf_set_mpc(ifp, mpc);
665 }
666
667 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
668 {
669 s32 err = 0;
670
671 if (check_vif_up(ifp->vif)) {
672 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
673 if (err) {
674 brcmf_err("fail to set mpc\n");
675 return;
676 }
677 brcmf_dbg(INFO, "MPC : %d\n", mpc);
678 }
679 }
680
681 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
682 struct brcmf_if *ifp, bool aborted,
683 bool fw_abort)
684 {
685 struct brcmf_scan_params_le params_le;
686 struct cfg80211_scan_request *scan_request;
687 s32 err = 0;
688
689 brcmf_dbg(SCAN, "Enter\n");
690
691 /* clear scan request, because the FW abort can cause a second call */
692 /* to this functon and might cause a double cfg80211_scan_done */
693 scan_request = cfg->scan_request;
694 cfg->scan_request = NULL;
695
696 if (timer_pending(&cfg->escan_timeout))
697 del_timer_sync(&cfg->escan_timeout);
698
699 if (fw_abort) {
700 /* Do a scan abort to stop the driver's scan engine */
701 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
702 memset(&params_le, 0, sizeof(params_le));
703 memset(params_le.bssid, 0xFF, ETH_ALEN);
704 params_le.bss_type = DOT11_BSSTYPE_ANY;
705 params_le.scan_type = 0;
706 params_le.channel_num = cpu_to_le32(1);
707 params_le.nprobes = cpu_to_le32(1);
708 params_le.active_time = cpu_to_le32(-1);
709 params_le.passive_time = cpu_to_le32(-1);
710 params_le.home_time = cpu_to_le32(-1);
711 /* Scan is aborted by setting channel_list[0] to -1 */
712 params_le.channel_list[0] = cpu_to_le16(-1);
713 /* E-Scan (or anyother type) can be aborted by SCAN */
714 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
715 &params_le, sizeof(params_le));
716 if (err)
717 brcmf_err("Scan abort failed\n");
718 }
719
720 brcmf_scan_config_mpc(ifp, 1);
721
722 /*
723 * e-scan can be initiated by scheduled scan
724 * which takes precedence.
725 */
726 if (cfg->sched_escan) {
727 brcmf_dbg(SCAN, "scheduled scan completed\n");
728 cfg->sched_escan = false;
729 if (!aborted)
730 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
731 } else if (scan_request) {
732 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
733 aborted ? "Aborted" : "Done");
734 cfg80211_scan_done(scan_request, aborted);
735 }
736 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
737 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
738
739 return err;
740 }
741
742 static
743 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
744 {
745 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
746 struct net_device *ndev = wdev->netdev;
747
748 /* vif event pending in firmware */
749 if (brcmf_cfg80211_vif_event_armed(cfg))
750 return -EBUSY;
751
752 if (ndev) {
753 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
754 cfg->escan_info.ifp == netdev_priv(ndev))
755 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
756 true, true);
757
758 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
759 }
760
761 switch (wdev->iftype) {
762 case NL80211_IFTYPE_ADHOC:
763 case NL80211_IFTYPE_STATION:
764 case NL80211_IFTYPE_AP:
765 case NL80211_IFTYPE_AP_VLAN:
766 case NL80211_IFTYPE_WDS:
767 case NL80211_IFTYPE_MONITOR:
768 case NL80211_IFTYPE_MESH_POINT:
769 return -EOPNOTSUPP;
770 case NL80211_IFTYPE_P2P_CLIENT:
771 case NL80211_IFTYPE_P2P_GO:
772 case NL80211_IFTYPE_P2P_DEVICE:
773 return brcmf_p2p_del_vif(wiphy, wdev);
774 case NL80211_IFTYPE_UNSPECIFIED:
775 default:
776 return -EINVAL;
777 }
778 return -EOPNOTSUPP;
779 }
780
781 static s32
782 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
783 enum nl80211_iftype type, u32 *flags,
784 struct vif_params *params)
785 {
786 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
787 struct brcmf_if *ifp = netdev_priv(ndev);
788 struct brcmf_cfg80211_vif *vif = ifp->vif;
789 s32 infra = 0;
790 s32 ap = 0;
791 s32 err = 0;
792
793 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
794
795 switch (type) {
796 case NL80211_IFTYPE_MONITOR:
797 case NL80211_IFTYPE_WDS:
798 brcmf_err("type (%d) : currently we do not support this type\n",
799 type);
800 return -EOPNOTSUPP;
801 case NL80211_IFTYPE_ADHOC:
802 infra = 0;
803 break;
804 case NL80211_IFTYPE_STATION:
805 /* Ignore change for p2p IF. Unclear why supplicant does this */
806 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
807 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
808 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
809 /* WAR: It is unexpected to get a change of VIF for P2P
810 * IF, but it happens. The request can not be handled
811 * but returning EPERM causes a crash. Returning 0
812 * without setting ieee80211_ptr->iftype causes trace
813 * (WARN_ON) but it works with wpa_supplicant
814 */
815 return 0;
816 }
817 infra = 1;
818 break;
819 case NL80211_IFTYPE_AP:
820 case NL80211_IFTYPE_P2P_GO:
821 ap = 1;
822 break;
823 default:
824 err = -EINVAL;
825 goto done;
826 }
827
828 if (ap) {
829 if (type == NL80211_IFTYPE_P2P_GO) {
830 brcmf_dbg(INFO, "IF Type = P2P GO\n");
831 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
832 }
833 if (!err) {
834 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
835 brcmf_dbg(INFO, "IF Type = AP\n");
836 }
837 } else {
838 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
839 if (err) {
840 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
841 err = -EAGAIN;
842 goto done;
843 }
844 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
845 "Adhoc" : "Infra");
846 }
847 ndev->ieee80211_ptr->iftype = type;
848
849 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
850
851 done:
852 brcmf_dbg(TRACE, "Exit\n");
853
854 return err;
855 }
856
857 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
858 struct brcmf_scan_params_le *params_le,
859 struct cfg80211_scan_request *request)
860 {
861 u32 n_ssids;
862 u32 n_channels;
863 s32 i;
864 s32 offset;
865 u16 chanspec;
866 char *ptr;
867 struct brcmf_ssid_le ssid_le;
868
869 memset(params_le->bssid, 0xFF, ETH_ALEN);
870 params_le->bss_type = DOT11_BSSTYPE_ANY;
871 params_le->scan_type = 0;
872 params_le->channel_num = 0;
873 params_le->nprobes = cpu_to_le32(-1);
874 params_le->active_time = cpu_to_le32(-1);
875 params_le->passive_time = cpu_to_le32(-1);
876 params_le->home_time = cpu_to_le32(-1);
877 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
878
879 /* if request is null exit so it will be all channel broadcast scan */
880 if (!request)
881 return;
882
883 n_ssids = request->n_ssids;
884 n_channels = request->n_channels;
885 /* Copy channel array if applicable */
886 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
887 n_channels);
888 if (n_channels > 0) {
889 for (i = 0; i < n_channels; i++) {
890 chanspec = channel_to_chanspec(&cfg->d11inf,
891 request->channels[i]);
892 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
893 request->channels[i]->hw_value, chanspec);
894 params_le->channel_list[i] = cpu_to_le16(chanspec);
895 }
896 } else {
897 brcmf_dbg(SCAN, "Scanning all channels\n");
898 }
899 /* Copy ssid array if applicable */
900 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
901 if (n_ssids > 0) {
902 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
903 n_channels * sizeof(u16);
904 offset = roundup(offset, sizeof(u32));
905 ptr = (char *)params_le + offset;
906 for (i = 0; i < n_ssids; i++) {
907 memset(&ssid_le, 0, sizeof(ssid_le));
908 ssid_le.SSID_len =
909 cpu_to_le32(request->ssids[i].ssid_len);
910 memcpy(ssid_le.SSID, request->ssids[i].ssid,
911 request->ssids[i].ssid_len);
912 if (!ssid_le.SSID_len)
913 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
914 else
915 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
916 i, ssid_le.SSID, ssid_le.SSID_len);
917 memcpy(ptr, &ssid_le, sizeof(ssid_le));
918 ptr += sizeof(ssid_le);
919 }
920 } else {
921 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
922 if ((request->ssids) && request->ssids->ssid_len) {
923 brcmf_dbg(SCAN, "SSID %s len=%d\n",
924 params_le->ssid_le.SSID,
925 request->ssids->ssid_len);
926 params_le->ssid_le.SSID_len =
927 cpu_to_le32(request->ssids->ssid_len);
928 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
929 request->ssids->ssid_len);
930 }
931 }
932 /* Adding mask to channel numbers */
933 params_le->channel_num =
934 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
935 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
936 }
937
938 static s32
939 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
940 struct cfg80211_scan_request *request, u16 action)
941 {
942 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
943 offsetof(struct brcmf_escan_params_le, params_le);
944 struct brcmf_escan_params_le *params;
945 s32 err = 0;
946
947 brcmf_dbg(SCAN, "E-SCAN START\n");
948
949 if (request != NULL) {
950 /* Allocate space for populating ssids in struct */
951 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
952
953 /* Allocate space for populating ssids in struct */
954 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
955 }
956
957 params = kzalloc(params_size, GFP_KERNEL);
958 if (!params) {
959 err = -ENOMEM;
960 goto exit;
961 }
962 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
963 brcmf_escan_prep(cfg, &params->params_le, request);
964 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
965 params->action = cpu_to_le16(action);
966 params->sync_id = cpu_to_le16(0x1234);
967
968 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
969 if (err) {
970 if (err == -EBUSY)
971 brcmf_dbg(INFO, "system busy : escan canceled\n");
972 else
973 brcmf_err("error (%d)\n", err);
974 }
975
976 kfree(params);
977 exit:
978 return err;
979 }
980
981 static s32
982 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
983 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
984 {
985 s32 err;
986 u32 passive_scan;
987 struct brcmf_scan_results *results;
988 struct escan_info *escan = &cfg->escan_info;
989
990 brcmf_dbg(SCAN, "Enter\n");
991 escan->ifp = ifp;
992 escan->wiphy = wiphy;
993 escan->escan_state = WL_ESCAN_STATE_SCANNING;
994 passive_scan = cfg->active_scan ? 0 : 1;
995 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
996 passive_scan);
997 if (err) {
998 brcmf_err("error (%d)\n", err);
999 return err;
1000 }
1001 brcmf_scan_config_mpc(ifp, 0);
1002 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1003 results->version = 0;
1004 results->count = 0;
1005 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1006
1007 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
1008 if (err)
1009 brcmf_scan_config_mpc(ifp, 1);
1010 return err;
1011 }
1012
1013 static s32
1014 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1015 struct cfg80211_scan_request *request,
1016 struct cfg80211_ssid *this_ssid)
1017 {
1018 struct brcmf_if *ifp = vif->ifp;
1019 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1020 struct cfg80211_ssid *ssids;
1021 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
1022 u32 passive_scan;
1023 bool escan_req;
1024 bool spec_scan;
1025 s32 err;
1026 u32 SSID_len;
1027
1028 brcmf_dbg(SCAN, "START ESCAN\n");
1029
1030 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1031 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1032 return -EAGAIN;
1033 }
1034 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1035 brcmf_err("Scanning being aborted: status (%lu)\n",
1036 cfg->scan_status);
1037 return -EAGAIN;
1038 }
1039 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1040 brcmf_err("Scanning suppressed: status (%lu)\n",
1041 cfg->scan_status);
1042 return -EAGAIN;
1043 }
1044 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1045 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1046 return -EAGAIN;
1047 }
1048
1049 /* If scan req comes for p2p0, send it over primary I/F */
1050 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1051 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1052
1053 /* Arm scan timeout timer */
1054 mod_timer(&cfg->escan_timeout, jiffies +
1055 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1056
1057 escan_req = false;
1058 if (request) {
1059 /* scan bss */
1060 ssids = request->ssids;
1061 escan_req = true;
1062 } else {
1063 /* scan in ibss */
1064 /* we don't do escan in ibss */
1065 ssids = this_ssid;
1066 }
1067
1068 cfg->scan_request = request;
1069 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1070 if (escan_req) {
1071 cfg->escan_info.run = brcmf_run_escan;
1072 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1073 if (err)
1074 goto scan_out;
1075
1076 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1077 if (err)
1078 goto scan_out;
1079 } else {
1080 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1081 ssids->ssid, ssids->ssid_len);
1082 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
1083 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
1084 sr->ssid_le.SSID_len = cpu_to_le32(0);
1085 spec_scan = false;
1086 if (SSID_len) {
1087 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
1088 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
1089 spec_scan = true;
1090 } else
1091 brcmf_dbg(SCAN, "Broadcast scan\n");
1092
1093 passive_scan = cfg->active_scan ? 0 : 1;
1094 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1095 passive_scan);
1096 if (err) {
1097 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1098 goto scan_out;
1099 }
1100 brcmf_scan_config_mpc(ifp, 0);
1101 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1102 &sr->ssid_le, sizeof(sr->ssid_le));
1103 if (err) {
1104 if (err == -EBUSY)
1105 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1106 sr->ssid_le.SSID);
1107 else
1108 brcmf_err("WLC_SCAN error (%d)\n", err);
1109
1110 brcmf_scan_config_mpc(ifp, 1);
1111 goto scan_out;
1112 }
1113 }
1114
1115 return 0;
1116
1117 scan_out:
1118 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1119 if (timer_pending(&cfg->escan_timeout))
1120 del_timer_sync(&cfg->escan_timeout);
1121 cfg->scan_request = NULL;
1122 return err;
1123 }
1124
1125 static s32
1126 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1127 {
1128 struct brcmf_cfg80211_vif *vif;
1129 s32 err = 0;
1130
1131 brcmf_dbg(TRACE, "Enter\n");
1132 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1133 if (!check_vif_up(vif))
1134 return -EIO;
1135
1136 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1137
1138 if (err)
1139 brcmf_err("scan error (%d)\n", err);
1140
1141 brcmf_dbg(TRACE, "Exit\n");
1142 return err;
1143 }
1144
1145 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1146 {
1147 s32 err = 0;
1148
1149 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1150 rts_threshold);
1151 if (err)
1152 brcmf_err("Error (%d)\n", err);
1153
1154 return err;
1155 }
1156
1157 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1158 {
1159 s32 err = 0;
1160
1161 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1162 frag_threshold);
1163 if (err)
1164 brcmf_err("Error (%d)\n", err);
1165
1166 return err;
1167 }
1168
1169 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1170 {
1171 s32 err = 0;
1172 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1173
1174 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1175 if (err) {
1176 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1177 return err;
1178 }
1179 return err;
1180 }
1181
1182 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1183 {
1184 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1185 struct net_device *ndev = cfg_to_ndev(cfg);
1186 struct brcmf_if *ifp = netdev_priv(ndev);
1187 s32 err = 0;
1188
1189 brcmf_dbg(TRACE, "Enter\n");
1190 if (!check_vif_up(ifp->vif))
1191 return -EIO;
1192
1193 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1194 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1195 cfg->conf->rts_threshold = wiphy->rts_threshold;
1196 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1197 if (!err)
1198 goto done;
1199 }
1200 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1201 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1202 cfg->conf->frag_threshold = wiphy->frag_threshold;
1203 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1204 if (!err)
1205 goto done;
1206 }
1207 if (changed & WIPHY_PARAM_RETRY_LONG
1208 && (cfg->conf->retry_long != wiphy->retry_long)) {
1209 cfg->conf->retry_long = wiphy->retry_long;
1210 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1211 if (!err)
1212 goto done;
1213 }
1214 if (changed & WIPHY_PARAM_RETRY_SHORT
1215 && (cfg->conf->retry_short != wiphy->retry_short)) {
1216 cfg->conf->retry_short = wiphy->retry_short;
1217 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1218 if (!err)
1219 goto done;
1220 }
1221
1222 done:
1223 brcmf_dbg(TRACE, "Exit\n");
1224 return err;
1225 }
1226
1227 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1228 {
1229 memset(prof, 0, sizeof(*prof));
1230 }
1231
1232 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
1233 {
1234 u16 reason;
1235
1236 switch (e->event_code) {
1237 case BRCMF_E_DEAUTH:
1238 case BRCMF_E_DEAUTH_IND:
1239 case BRCMF_E_DISASSOC_IND:
1240 reason = e->reason;
1241 break;
1242 case BRCMF_E_LINK:
1243 default:
1244 reason = 0;
1245 break;
1246 }
1247 return reason;
1248 }
1249
1250 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
1251 {
1252 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1253 s32 err = 0;
1254
1255 brcmf_dbg(TRACE, "Enter\n");
1256
1257 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1258 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1259 err = brcmf_fil_cmd_data_set(vif->ifp,
1260 BRCMF_C_DISASSOC, NULL, 0);
1261 if (err) {
1262 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1263 }
1264 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1265 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
1266 GFP_KERNEL);
1267
1268 }
1269 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1270 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1271 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1272 brcmf_dbg(TRACE, "Exit\n");
1273 }
1274
1275 static s32
1276 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1277 struct cfg80211_ibss_params *params)
1278 {
1279 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1280 struct brcmf_if *ifp = netdev_priv(ndev);
1281 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1282 struct brcmf_join_params join_params;
1283 size_t join_params_size = 0;
1284 s32 err = 0;
1285 s32 wsec = 0;
1286 s32 bcnprd;
1287 u16 chanspec;
1288
1289 brcmf_dbg(TRACE, "Enter\n");
1290 if (!check_vif_up(ifp->vif))
1291 return -EIO;
1292
1293 if (params->ssid)
1294 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1295 else {
1296 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1297 return -EOPNOTSUPP;
1298 }
1299
1300 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1301
1302 if (params->bssid)
1303 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1304 else
1305 brcmf_dbg(CONN, "No BSSID specified\n");
1306
1307 if (params->chandef.chan)
1308 brcmf_dbg(CONN, "channel: %d\n",
1309 params->chandef.chan->center_freq);
1310 else
1311 brcmf_dbg(CONN, "no channel specified\n");
1312
1313 if (params->channel_fixed)
1314 brcmf_dbg(CONN, "fixed channel required\n");
1315 else
1316 brcmf_dbg(CONN, "no fixed channel required\n");
1317
1318 if (params->ie && params->ie_len)
1319 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1320 else
1321 brcmf_dbg(CONN, "no ie specified\n");
1322
1323 if (params->beacon_interval)
1324 brcmf_dbg(CONN, "beacon interval: %d\n",
1325 params->beacon_interval);
1326 else
1327 brcmf_dbg(CONN, "no beacon interval specified\n");
1328
1329 if (params->basic_rates)
1330 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1331 else
1332 brcmf_dbg(CONN, "no basic rates specified\n");
1333
1334 if (params->privacy)
1335 brcmf_dbg(CONN, "privacy required\n");
1336 else
1337 brcmf_dbg(CONN, "no privacy required\n");
1338
1339 /* Configure Privacy for starter */
1340 if (params->privacy)
1341 wsec |= WEP_ENABLED;
1342
1343 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1344 if (err) {
1345 brcmf_err("wsec failed (%d)\n", err);
1346 goto done;
1347 }
1348
1349 /* Configure Beacon Interval for starter */
1350 if (params->beacon_interval)
1351 bcnprd = params->beacon_interval;
1352 else
1353 bcnprd = 100;
1354
1355 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1356 if (err) {
1357 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1358 goto done;
1359 }
1360
1361 /* Configure required join parameter */
1362 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1363
1364 /* SSID */
1365 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1366 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1367 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1368 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1369 join_params_size = sizeof(join_params.ssid_le);
1370
1371 /* BSSID */
1372 if (params->bssid) {
1373 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1374 join_params_size = sizeof(join_params.ssid_le) +
1375 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1376 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1377 } else {
1378 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1379 memset(profile->bssid, 0, ETH_ALEN);
1380 }
1381
1382 /* Channel */
1383 if (params->chandef.chan) {
1384 u32 target_channel;
1385
1386 cfg->channel =
1387 ieee80211_frequency_to_channel(
1388 params->chandef.chan->center_freq);
1389 if (params->channel_fixed) {
1390 /* adding chanspec */
1391 chanspec = chandef_to_chanspec(&cfg->d11inf,
1392 &params->chandef);
1393 join_params.params_le.chanspec_list[0] =
1394 cpu_to_le16(chanspec);
1395 join_params.params_le.chanspec_num = cpu_to_le32(1);
1396 join_params_size += sizeof(join_params.params_le);
1397 }
1398
1399 /* set channel for starter */
1400 target_channel = cfg->channel;
1401 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1402 target_channel);
1403 if (err) {
1404 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1405 goto done;
1406 }
1407 } else
1408 cfg->channel = 0;
1409
1410 cfg->ibss_starter = false;
1411
1412
1413 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1414 &join_params, join_params_size);
1415 if (err) {
1416 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1417 goto done;
1418 }
1419
1420 done:
1421 if (err)
1422 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1423 brcmf_dbg(TRACE, "Exit\n");
1424 return err;
1425 }
1426
1427 static s32
1428 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1429 {
1430 struct brcmf_if *ifp = netdev_priv(ndev);
1431
1432 brcmf_dbg(TRACE, "Enter\n");
1433 if (!check_vif_up(ifp->vif))
1434 return -EIO;
1435
1436 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
1437
1438 brcmf_dbg(TRACE, "Exit\n");
1439
1440 return 0;
1441 }
1442
1443 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1444 struct cfg80211_connect_params *sme)
1445 {
1446 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1447 struct brcmf_cfg80211_security *sec;
1448 s32 val = 0;
1449 s32 err = 0;
1450
1451 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1452 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1453 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1454 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1455 else
1456 val = WPA_AUTH_DISABLED;
1457 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1458 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1459 if (err) {
1460 brcmf_err("set wpa_auth failed (%d)\n", err);
1461 return err;
1462 }
1463 sec = &profile->sec;
1464 sec->wpa_versions = sme->crypto.wpa_versions;
1465 return err;
1466 }
1467
1468 static s32 brcmf_set_auth_type(struct net_device *ndev,
1469 struct cfg80211_connect_params *sme)
1470 {
1471 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1472 struct brcmf_cfg80211_security *sec;
1473 s32 val = 0;
1474 s32 err = 0;
1475
1476 switch (sme->auth_type) {
1477 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1478 val = 0;
1479 brcmf_dbg(CONN, "open system\n");
1480 break;
1481 case NL80211_AUTHTYPE_SHARED_KEY:
1482 val = 1;
1483 brcmf_dbg(CONN, "shared key\n");
1484 break;
1485 case NL80211_AUTHTYPE_AUTOMATIC:
1486 val = 2;
1487 brcmf_dbg(CONN, "automatic\n");
1488 break;
1489 case NL80211_AUTHTYPE_NETWORK_EAP:
1490 brcmf_dbg(CONN, "network eap\n");
1491 default:
1492 val = 2;
1493 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1494 break;
1495 }
1496
1497 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1498 if (err) {
1499 brcmf_err("set auth failed (%d)\n", err);
1500 return err;
1501 }
1502 sec = &profile->sec;
1503 sec->auth_type = sme->auth_type;
1504 return err;
1505 }
1506
1507 static s32
1508 brcmf_set_wsec_mode(struct net_device *ndev,
1509 struct cfg80211_connect_params *sme, bool mfp)
1510 {
1511 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1512 struct brcmf_cfg80211_security *sec;
1513 s32 pval = 0;
1514 s32 gval = 0;
1515 s32 wsec;
1516 s32 err = 0;
1517
1518 if (sme->crypto.n_ciphers_pairwise) {
1519 switch (sme->crypto.ciphers_pairwise[0]) {
1520 case WLAN_CIPHER_SUITE_WEP40:
1521 case WLAN_CIPHER_SUITE_WEP104:
1522 pval = WEP_ENABLED;
1523 break;
1524 case WLAN_CIPHER_SUITE_TKIP:
1525 pval = TKIP_ENABLED;
1526 break;
1527 case WLAN_CIPHER_SUITE_CCMP:
1528 pval = AES_ENABLED;
1529 break;
1530 case WLAN_CIPHER_SUITE_AES_CMAC:
1531 pval = AES_ENABLED;
1532 break;
1533 default:
1534 brcmf_err("invalid cipher pairwise (%d)\n",
1535 sme->crypto.ciphers_pairwise[0]);
1536 return -EINVAL;
1537 }
1538 }
1539 if (sme->crypto.cipher_group) {
1540 switch (sme->crypto.cipher_group) {
1541 case WLAN_CIPHER_SUITE_WEP40:
1542 case WLAN_CIPHER_SUITE_WEP104:
1543 gval = WEP_ENABLED;
1544 break;
1545 case WLAN_CIPHER_SUITE_TKIP:
1546 gval = TKIP_ENABLED;
1547 break;
1548 case WLAN_CIPHER_SUITE_CCMP:
1549 gval = AES_ENABLED;
1550 break;
1551 case WLAN_CIPHER_SUITE_AES_CMAC:
1552 gval = AES_ENABLED;
1553 break;
1554 default:
1555 brcmf_err("invalid cipher group (%d)\n",
1556 sme->crypto.cipher_group);
1557 return -EINVAL;
1558 }
1559 }
1560
1561 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1562 /* In case of privacy, but no security and WPS then simulate */
1563 /* setting AES. WPS-2.0 allows no security */
1564 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1565 sme->privacy)
1566 pval = AES_ENABLED;
1567
1568 if (mfp)
1569 wsec = pval | gval | MFP_CAPABLE;
1570 else
1571 wsec = pval | gval;
1572 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1573 if (err) {
1574 brcmf_err("error (%d)\n", err);
1575 return err;
1576 }
1577
1578 sec = &profile->sec;
1579 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1580 sec->cipher_group = sme->crypto.cipher_group;
1581
1582 return err;
1583 }
1584
1585 static s32
1586 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1587 {
1588 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1589 struct brcmf_cfg80211_security *sec;
1590 s32 val = 0;
1591 s32 err = 0;
1592
1593 if (sme->crypto.n_akm_suites) {
1594 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1595 "wpa_auth", &val);
1596 if (err) {
1597 brcmf_err("could not get wpa_auth (%d)\n", err);
1598 return err;
1599 }
1600 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1601 switch (sme->crypto.akm_suites[0]) {
1602 case WLAN_AKM_SUITE_8021X:
1603 val = WPA_AUTH_UNSPECIFIED;
1604 break;
1605 case WLAN_AKM_SUITE_PSK:
1606 val = WPA_AUTH_PSK;
1607 break;
1608 default:
1609 brcmf_err("invalid cipher group (%d)\n",
1610 sme->crypto.cipher_group);
1611 return -EINVAL;
1612 }
1613 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1614 switch (sme->crypto.akm_suites[0]) {
1615 case WLAN_AKM_SUITE_8021X:
1616 val = WPA2_AUTH_UNSPECIFIED;
1617 break;
1618 case WLAN_AKM_SUITE_PSK:
1619 val = WPA2_AUTH_PSK;
1620 break;
1621 default:
1622 brcmf_err("invalid cipher group (%d)\n",
1623 sme->crypto.cipher_group);
1624 return -EINVAL;
1625 }
1626 }
1627
1628 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1629 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1630 "wpa_auth", val);
1631 if (err) {
1632 brcmf_err("could not set wpa_auth (%d)\n", err);
1633 return err;
1634 }
1635 }
1636 sec = &profile->sec;
1637 sec->wpa_auth = sme->crypto.akm_suites[0];
1638
1639 return err;
1640 }
1641
1642 static s32
1643 brcmf_set_sharedkey(struct net_device *ndev,
1644 struct cfg80211_connect_params *sme)
1645 {
1646 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1647 struct brcmf_cfg80211_security *sec;
1648 struct brcmf_wsec_key key;
1649 s32 val;
1650 s32 err = 0;
1651
1652 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1653
1654 if (sme->key_len == 0)
1655 return 0;
1656
1657 sec = &profile->sec;
1658 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1659 sec->wpa_versions, sec->cipher_pairwise);
1660
1661 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1662 return 0;
1663
1664 if (!(sec->cipher_pairwise &
1665 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1666 return 0;
1667
1668 memset(&key, 0, sizeof(key));
1669 key.len = (u32) sme->key_len;
1670 key.index = (u32) sme->key_idx;
1671 if (key.len > sizeof(key.data)) {
1672 brcmf_err("Too long key length (%u)\n", key.len);
1673 return -EINVAL;
1674 }
1675 memcpy(key.data, sme->key, key.len);
1676 key.flags = BRCMF_PRIMARY_KEY;
1677 switch (sec->cipher_pairwise) {
1678 case WLAN_CIPHER_SUITE_WEP40:
1679 key.algo = CRYPTO_ALGO_WEP1;
1680 break;
1681 case WLAN_CIPHER_SUITE_WEP104:
1682 key.algo = CRYPTO_ALGO_WEP128;
1683 break;
1684 default:
1685 brcmf_err("Invalid algorithm (%d)\n",
1686 sme->crypto.ciphers_pairwise[0]);
1687 return -EINVAL;
1688 }
1689 /* Set the new key/index */
1690 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1691 key.len, key.index, key.algo);
1692 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1693 err = send_key_to_dongle(netdev_priv(ndev), &key);
1694 if (err)
1695 return err;
1696
1697 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1698 brcmf_dbg(CONN, "set auth_type to shared key\n");
1699 val = WL_AUTH_SHARED_KEY; /* shared key */
1700 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1701 if (err)
1702 brcmf_err("set auth failed (%d)\n", err);
1703 }
1704 return err;
1705 }
1706
1707 static
1708 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1709 enum nl80211_auth_type type)
1710 {
1711 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1712 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1713 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1714 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1715 }
1716 return type;
1717 }
1718
1719 static s32
1720 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1721 struct cfg80211_connect_params *sme)
1722 {
1723 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1724 struct brcmf_if *ifp = netdev_priv(ndev);
1725 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1726 struct ieee80211_channel *chan = sme->channel;
1727 struct brcmf_join_params join_params;
1728 size_t join_params_size;
1729 const struct brcmf_tlv *rsn_ie;
1730 const struct brcmf_vs_tlv *wpa_ie;
1731 const void *ie;
1732 u32 ie_len;
1733 struct brcmf_ext_join_params_le *ext_join_params;
1734 u16 chanspec;
1735 s32 err = 0;
1736
1737 brcmf_dbg(TRACE, "Enter\n");
1738 if (!check_vif_up(ifp->vif))
1739 return -EIO;
1740
1741 if (!sme->ssid) {
1742 brcmf_err("Invalid ssid\n");
1743 return -EOPNOTSUPP;
1744 }
1745
1746 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1747 /* A normal (non P2P) connection request setup. */
1748 ie = NULL;
1749 ie_len = 0;
1750 /* find the WPA_IE */
1751 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1752 if (wpa_ie) {
1753 ie = wpa_ie;
1754 ie_len = wpa_ie->len + TLV_HDR_LEN;
1755 } else {
1756 /* find the RSN_IE */
1757 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1758 sme->ie_len,
1759 WLAN_EID_RSN);
1760 if (rsn_ie) {
1761 ie = rsn_ie;
1762 ie_len = rsn_ie->len + TLV_HDR_LEN;
1763 }
1764 }
1765 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1766 }
1767
1768 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1769 sme->ie, sme->ie_len);
1770 if (err)
1771 brcmf_err("Set Assoc REQ IE Failed\n");
1772 else
1773 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1774
1775 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1776
1777 if (chan) {
1778 cfg->channel =
1779 ieee80211_frequency_to_channel(chan->center_freq);
1780 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1781 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1782 cfg->channel, chan->center_freq, chanspec);
1783 } else {
1784 cfg->channel = 0;
1785 chanspec = 0;
1786 }
1787
1788 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1789
1790 err = brcmf_set_wpa_version(ndev, sme);
1791 if (err) {
1792 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1793 goto done;
1794 }
1795
1796 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1797 err = brcmf_set_auth_type(ndev, sme);
1798 if (err) {
1799 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1800 goto done;
1801 }
1802
1803 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1804 if (err) {
1805 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1806 goto done;
1807 }
1808
1809 err = brcmf_set_key_mgmt(ndev, sme);
1810 if (err) {
1811 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1812 goto done;
1813 }
1814
1815 err = brcmf_set_sharedkey(ndev, sme);
1816 if (err) {
1817 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1818 goto done;
1819 }
1820
1821 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1822 (u32)sme->ssid_len);
1823 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1824 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1825 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1826 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1827 profile->ssid.SSID_len);
1828 }
1829
1830 /* Join with specific BSSID and cached SSID
1831 * If SSID is zero join based on BSSID only
1832 */
1833 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1834 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1835 if (cfg->channel)
1836 join_params_size += sizeof(u16);
1837 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1838 if (ext_join_params == NULL) {
1839 err = -ENOMEM;
1840 goto done;
1841 }
1842 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1843 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1844 profile->ssid.SSID_len);
1845
1846 /* Set up join scan parameters */
1847 ext_join_params->scan_le.scan_type = -1;
1848 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1849
1850 if (sme->bssid)
1851 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1852 else
1853 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1854
1855 if (cfg->channel) {
1856 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1857
1858 ext_join_params->assoc_le.chanspec_list[0] =
1859 cpu_to_le16(chanspec);
1860 /* Increase dwell time to receive probe response or detect
1861 * beacon from target AP at a noisy air only during connect
1862 * command.
1863 */
1864 ext_join_params->scan_le.active_time =
1865 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1866 ext_join_params->scan_le.passive_time =
1867 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1868 /* To sync with presence period of VSDB GO send probe request
1869 * more frequently. Probe request will be stopped when it gets
1870 * probe response from target AP/GO.
1871 */
1872 ext_join_params->scan_le.nprobes =
1873 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1874 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1875 } else {
1876 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1877 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1878 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1879 }
1880
1881 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1882 join_params_size);
1883 kfree(ext_join_params);
1884 if (!err)
1885 /* This is it. join command worked, we are done */
1886 goto done;
1887
1888 /* join command failed, fallback to set ssid */
1889 memset(&join_params, 0, sizeof(join_params));
1890 join_params_size = sizeof(join_params.ssid_le);
1891
1892 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1893 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1894
1895 if (sme->bssid)
1896 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1897 else
1898 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1899
1900 if (cfg->channel) {
1901 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1902 join_params.params_le.chanspec_num = cpu_to_le32(1);
1903 join_params_size += sizeof(join_params.params_le);
1904 }
1905 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1906 &join_params, join_params_size);
1907 if (err)
1908 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1909
1910 done:
1911 if (err)
1912 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1913 brcmf_dbg(TRACE, "Exit\n");
1914 return err;
1915 }
1916
1917 static s32
1918 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1919 u16 reason_code)
1920 {
1921 struct brcmf_if *ifp = netdev_priv(ndev);
1922 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1923 struct brcmf_scb_val_le scbval;
1924 s32 err = 0;
1925
1926 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1927 if (!check_vif_up(ifp->vif))
1928 return -EIO;
1929
1930 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1931 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1932 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1933
1934 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1935 scbval.val = cpu_to_le32(reason_code);
1936 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1937 &scbval, sizeof(scbval));
1938 if (err)
1939 brcmf_err("error (%d)\n", err);
1940
1941 brcmf_dbg(TRACE, "Exit\n");
1942 return err;
1943 }
1944
1945 static s32
1946 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1947 enum nl80211_tx_power_setting type, s32 mbm)
1948 {
1949
1950 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1951 struct net_device *ndev = cfg_to_ndev(cfg);
1952 struct brcmf_if *ifp = netdev_priv(ndev);
1953 u16 txpwrmw;
1954 s32 err = 0;
1955 s32 disable = 0;
1956 s32 dbm = MBM_TO_DBM(mbm);
1957
1958 brcmf_dbg(TRACE, "Enter\n");
1959 if (!check_vif_up(ifp->vif))
1960 return -EIO;
1961
1962 switch (type) {
1963 case NL80211_TX_POWER_AUTOMATIC:
1964 break;
1965 case NL80211_TX_POWER_LIMITED:
1966 case NL80211_TX_POWER_FIXED:
1967 if (dbm < 0) {
1968 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1969 err = -EINVAL;
1970 goto done;
1971 }
1972 break;
1973 }
1974 /* Make sure radio is off or on as far as software is concerned */
1975 disable = WL_RADIO_SW_DISABLE << 16;
1976 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1977 if (err)
1978 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1979
1980 if (dbm > 0xffff)
1981 txpwrmw = 0xffff;
1982 else
1983 txpwrmw = (u16) dbm;
1984 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1985 (s32)brcmf_mw_to_qdbm(txpwrmw));
1986 if (err)
1987 brcmf_err("qtxpower error (%d)\n", err);
1988 cfg->conf->tx_power = dbm;
1989
1990 done:
1991 brcmf_dbg(TRACE, "Exit\n");
1992 return err;
1993 }
1994
1995 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1996 struct wireless_dev *wdev,
1997 s32 *dbm)
1998 {
1999 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2000 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
2001 s32 txpwrdbm;
2002 u8 result;
2003 s32 err = 0;
2004
2005 brcmf_dbg(TRACE, "Enter\n");
2006 if (!check_vif_up(ifp->vif))
2007 return -EIO;
2008
2009 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
2010 if (err) {
2011 brcmf_err("error (%d)\n", err);
2012 goto done;
2013 }
2014
2015 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
2016 *dbm = (s32) brcmf_qdbm_to_mw(result);
2017
2018 done:
2019 brcmf_dbg(TRACE, "Exit\n");
2020 return err;
2021 }
2022
2023 static s32
2024 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2025 u8 key_idx, bool unicast, bool multicast)
2026 {
2027 struct brcmf_if *ifp = netdev_priv(ndev);
2028 u32 index;
2029 u32 wsec;
2030 s32 err = 0;
2031
2032 brcmf_dbg(TRACE, "Enter\n");
2033 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2034 if (!check_vif_up(ifp->vif))
2035 return -EIO;
2036
2037 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2038 if (err) {
2039 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2040 goto done;
2041 }
2042
2043 if (wsec & WEP_ENABLED) {
2044 /* Just select a new current key */
2045 index = key_idx;
2046 err = brcmf_fil_cmd_int_set(ifp,
2047 BRCMF_C_SET_KEY_PRIMARY, index);
2048 if (err)
2049 brcmf_err("error (%d)\n", err);
2050 }
2051 done:
2052 brcmf_dbg(TRACE, "Exit\n");
2053 return err;
2054 }
2055
2056 static s32
2057 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
2058 u8 key_idx, const u8 *mac_addr, struct key_params *params)
2059 {
2060 struct brcmf_if *ifp = netdev_priv(ndev);
2061 struct brcmf_wsec_key key;
2062 s32 err = 0;
2063 u8 keybuf[8];
2064
2065 memset(&key, 0, sizeof(key));
2066 key.index = (u32) key_idx;
2067 /* Instead of bcast for ea address for default wep keys,
2068 driver needs it to be Null */
2069 if (!is_multicast_ether_addr(mac_addr))
2070 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
2071 key.len = (u32) params->key_len;
2072 /* check for key index change */
2073 if (key.len == 0) {
2074 /* key delete */
2075 err = send_key_to_dongle(ifp, &key);
2076 if (err)
2077 brcmf_err("key delete error (%d)\n", err);
2078 } else {
2079 if (key.len > sizeof(key.data)) {
2080 brcmf_err("Invalid key length (%d)\n", key.len);
2081 return -EINVAL;
2082 }
2083
2084 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
2085 memcpy(key.data, params->key, key.len);
2086
2087 if (!brcmf_is_apmode(ifp->vif) &&
2088 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
2089 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2090 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2091 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2092 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2093 }
2094
2095 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
2096 if (params->seq && params->seq_len == 6) {
2097 /* rx iv */
2098 u8 *ivptr;
2099 ivptr = (u8 *) params->seq;
2100 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
2101 (ivptr[3] << 8) | ivptr[2];
2102 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
2103 key.iv_initialized = true;
2104 }
2105
2106 switch (params->cipher) {
2107 case WLAN_CIPHER_SUITE_WEP40:
2108 key.algo = CRYPTO_ALGO_WEP1;
2109 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2110 break;
2111 case WLAN_CIPHER_SUITE_WEP104:
2112 key.algo = CRYPTO_ALGO_WEP128;
2113 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2114 break;
2115 case WLAN_CIPHER_SUITE_TKIP:
2116 key.algo = CRYPTO_ALGO_TKIP;
2117 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2118 break;
2119 case WLAN_CIPHER_SUITE_AES_CMAC:
2120 key.algo = CRYPTO_ALGO_AES_CCM;
2121 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2122 break;
2123 case WLAN_CIPHER_SUITE_CCMP:
2124 key.algo = CRYPTO_ALGO_AES_CCM;
2125 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2126 break;
2127 default:
2128 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2129 return -EINVAL;
2130 }
2131 err = send_key_to_dongle(ifp, &key);
2132 if (err)
2133 brcmf_err("wsec_key error (%d)\n", err);
2134 }
2135 return err;
2136 }
2137
2138 static s32
2139 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2140 u8 key_idx, bool pairwise, const u8 *mac_addr,
2141 struct key_params *params)
2142 {
2143 struct brcmf_if *ifp = netdev_priv(ndev);
2144 struct brcmf_wsec_key *key;
2145 s32 val;
2146 s32 wsec;
2147 s32 err = 0;
2148 u8 keybuf[8];
2149
2150 brcmf_dbg(TRACE, "Enter\n");
2151 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2152 if (!check_vif_up(ifp->vif))
2153 return -EIO;
2154
2155 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2156 /* we ignore this key index in this case */
2157 brcmf_err("invalid key index (%d)\n", key_idx);
2158 return -EINVAL;
2159 }
2160
2161 if (mac_addr &&
2162 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2163 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2164 brcmf_dbg(TRACE, "Exit");
2165 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2166 }
2167
2168 key = &ifp->vif->profile.key[key_idx];
2169 memset(key, 0, sizeof(*key));
2170
2171 if (params->key_len > sizeof(key->data)) {
2172 brcmf_err("Too long key length (%u)\n", params->key_len);
2173 err = -EINVAL;
2174 goto done;
2175 }
2176 key->len = params->key_len;
2177 key->index = key_idx;
2178
2179 memcpy(key->data, params->key, key->len);
2180
2181 key->flags = BRCMF_PRIMARY_KEY;
2182 switch (params->cipher) {
2183 case WLAN_CIPHER_SUITE_WEP40:
2184 key->algo = CRYPTO_ALGO_WEP1;
2185 val = WEP_ENABLED;
2186 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2187 break;
2188 case WLAN_CIPHER_SUITE_WEP104:
2189 key->algo = CRYPTO_ALGO_WEP128;
2190 val = WEP_ENABLED;
2191 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2192 break;
2193 case WLAN_CIPHER_SUITE_TKIP:
2194 if (!brcmf_is_apmode(ifp->vif)) {
2195 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2196 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2197 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2198 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2199 }
2200 key->algo = CRYPTO_ALGO_TKIP;
2201 val = TKIP_ENABLED;
2202 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2203 break;
2204 case WLAN_CIPHER_SUITE_AES_CMAC:
2205 key->algo = CRYPTO_ALGO_AES_CCM;
2206 val = AES_ENABLED;
2207 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2208 break;
2209 case WLAN_CIPHER_SUITE_CCMP:
2210 key->algo = CRYPTO_ALGO_AES_CCM;
2211 val = AES_ENABLED;
2212 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2213 break;
2214 default:
2215 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2216 err = -EINVAL;
2217 goto done;
2218 }
2219
2220 err = send_key_to_dongle(ifp, key);
2221 if (err)
2222 goto done;
2223
2224 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2225 if (err) {
2226 brcmf_err("get wsec error (%d)\n", err);
2227 goto done;
2228 }
2229 wsec |= val;
2230 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2231 if (err) {
2232 brcmf_err("set wsec error (%d)\n", err);
2233 goto done;
2234 }
2235
2236 done:
2237 brcmf_dbg(TRACE, "Exit\n");
2238 return err;
2239 }
2240
2241 static s32
2242 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2243 u8 key_idx, bool pairwise, const u8 *mac_addr)
2244 {
2245 struct brcmf_if *ifp = netdev_priv(ndev);
2246 struct brcmf_wsec_key key;
2247 s32 err = 0;
2248
2249 brcmf_dbg(TRACE, "Enter\n");
2250 if (!check_vif_up(ifp->vif))
2251 return -EIO;
2252
2253 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2254 /* we ignore this key index in this case */
2255 brcmf_err("invalid key index (%d)\n", key_idx);
2256 return -EINVAL;
2257 }
2258
2259 memset(&key, 0, sizeof(key));
2260
2261 key.index = (u32) key_idx;
2262 key.flags = BRCMF_PRIMARY_KEY;
2263 key.algo = CRYPTO_ALGO_OFF;
2264
2265 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2266
2267 /* Set the new key/index */
2268 err = send_key_to_dongle(ifp, &key);
2269
2270 brcmf_dbg(TRACE, "Exit\n");
2271 return err;
2272 }
2273
2274 static s32
2275 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2276 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2277 void (*callback) (void *cookie, struct key_params * params))
2278 {
2279 struct key_params params;
2280 struct brcmf_if *ifp = netdev_priv(ndev);
2281 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2282 struct brcmf_cfg80211_security *sec;
2283 s32 wsec;
2284 s32 err = 0;
2285
2286 brcmf_dbg(TRACE, "Enter\n");
2287 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2288 if (!check_vif_up(ifp->vif))
2289 return -EIO;
2290
2291 memset(&params, 0, sizeof(params));
2292
2293 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2294 if (err) {
2295 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2296 /* Ignore this error, may happen during DISASSOC */
2297 err = -EAGAIN;
2298 goto done;
2299 }
2300 if (wsec & WEP_ENABLED) {
2301 sec = &profile->sec;
2302 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2303 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2304 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2305 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2306 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2307 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2308 }
2309 } else if (wsec & TKIP_ENABLED) {
2310 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2311 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2312 } else if (wsec & AES_ENABLED) {
2313 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2314 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2315 } else {
2316 brcmf_err("Invalid algo (0x%x)\n", wsec);
2317 err = -EINVAL;
2318 goto done;
2319 }
2320 callback(cookie, &params);
2321
2322 done:
2323 brcmf_dbg(TRACE, "Exit\n");
2324 return err;
2325 }
2326
2327 static s32
2328 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2329 struct net_device *ndev, u8 key_idx)
2330 {
2331 brcmf_dbg(INFO, "Not supported\n");
2332
2333 return -EOPNOTSUPP;
2334 }
2335
2336 static void
2337 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2338 {
2339 s32 err;
2340 u8 key_idx;
2341 struct brcmf_wsec_key *key;
2342 s32 wsec;
2343
2344 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2345 key = &ifp->vif->profile.key[key_idx];
2346 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2347 (key->algo == CRYPTO_ALGO_WEP128))
2348 break;
2349 }
2350 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2351 return;
2352
2353 err = send_key_to_dongle(ifp, key);
2354 if (err) {
2355 brcmf_err("Setting WEP key failed (%d)\n", err);
2356 return;
2357 }
2358 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2359 if (err) {
2360 brcmf_err("get wsec error (%d)\n", err);
2361 return;
2362 }
2363 wsec |= WEP_ENABLED;
2364 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2365 if (err)
2366 brcmf_err("set wsec error (%d)\n", err);
2367 }
2368
2369 static s32
2370 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2371 const u8 *mac, struct station_info *sinfo)
2372 {
2373 struct brcmf_if *ifp = netdev_priv(ndev);
2374 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2375 struct brcmf_scb_val_le scb_val;
2376 int rssi;
2377 s32 rate;
2378 s32 err = 0;
2379 u8 *bssid = profile->bssid;
2380 struct brcmf_sta_info_le sta_info_le;
2381 u32 beacon_period;
2382 u32 dtim_period;
2383
2384 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2385 if (!check_vif_up(ifp->vif))
2386 return -EIO;
2387
2388 if (brcmf_is_apmode(ifp->vif)) {
2389 memcpy(&sta_info_le, mac, ETH_ALEN);
2390 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2391 &sta_info_le,
2392 sizeof(sta_info_le));
2393 if (err < 0) {
2394 brcmf_err("GET STA INFO failed, %d\n", err);
2395 goto done;
2396 }
2397 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME);
2398 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2399 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2400 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME);
2401 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2402 }
2403 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2404 sinfo->inactive_time, sinfo->connected_time);
2405 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2406 if (memcmp(mac, bssid, ETH_ALEN)) {
2407 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2408 mac, bssid);
2409 err = -ENOENT;
2410 goto done;
2411 }
2412 /* Report the current tx rate */
2413 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2414 if (err) {
2415 brcmf_err("Could not get rate (%d)\n", err);
2416 goto done;
2417 } else {
2418 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2419 sinfo->txrate.legacy = rate * 5;
2420 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2421 }
2422
2423 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2424 &ifp->vif->sme_state)) {
2425 memset(&scb_val, 0, sizeof(scb_val));
2426 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2427 &scb_val, sizeof(scb_val));
2428 if (err) {
2429 brcmf_err("Could not get rssi (%d)\n", err);
2430 goto done;
2431 } else {
2432 rssi = le32_to_cpu(scb_val.val);
2433 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2434 sinfo->signal = rssi;
2435 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2436 }
2437 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2438 &beacon_period);
2439 if (err) {
2440 brcmf_err("Could not get beacon period (%d)\n",
2441 err);
2442 goto done;
2443 } else {
2444 sinfo->bss_param.beacon_interval =
2445 beacon_period;
2446 brcmf_dbg(CONN, "Beacon peroid %d\n",
2447 beacon_period);
2448 }
2449 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2450 &dtim_period);
2451 if (err) {
2452 brcmf_err("Could not get DTIM period (%d)\n",
2453 err);
2454 goto done;
2455 } else {
2456 sinfo->bss_param.dtim_period = dtim_period;
2457 brcmf_dbg(CONN, "DTIM peroid %d\n",
2458 dtim_period);
2459 }
2460 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
2461 }
2462 } else
2463 err = -EPERM;
2464 done:
2465 brcmf_dbg(TRACE, "Exit\n");
2466 return err;
2467 }
2468
2469 static s32
2470 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2471 bool enabled, s32 timeout)
2472 {
2473 s32 pm;
2474 s32 err = 0;
2475 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2476 struct brcmf_if *ifp = netdev_priv(ndev);
2477
2478 brcmf_dbg(TRACE, "Enter\n");
2479
2480 /*
2481 * Powersave enable/disable request is coming from the
2482 * cfg80211 even before the interface is up. In that
2483 * scenario, driver will be storing the power save
2484 * preference in cfg struct to apply this to
2485 * FW later while initializing the dongle
2486 */
2487 cfg->pwr_save = enabled;
2488 if (!check_vif_up(ifp->vif)) {
2489
2490 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2491 goto done;
2492 }
2493
2494 pm = enabled ? PM_FAST : PM_OFF;
2495 /* Do not enable the power save after assoc if it is a p2p interface */
2496 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2497 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2498 pm = PM_OFF;
2499 }
2500 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2501
2502 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2503 if (err) {
2504 if (err == -ENODEV)
2505 brcmf_err("net_device is not ready yet\n");
2506 else
2507 brcmf_err("error (%d)\n", err);
2508 }
2509 done:
2510 brcmf_dbg(TRACE, "Exit\n");
2511 return err;
2512 }
2513
2514 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2515 struct brcmf_bss_info_le *bi)
2516 {
2517 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2518 struct ieee80211_channel *notify_channel;
2519 struct cfg80211_bss *bss;
2520 struct ieee80211_supported_band *band;
2521 struct brcmu_chan ch;
2522 u16 channel;
2523 u32 freq;
2524 u16 notify_capability;
2525 u16 notify_interval;
2526 u8 *notify_ie;
2527 size_t notify_ielen;
2528 s32 notify_signal;
2529
2530 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2531 brcmf_err("Bss info is larger than buffer. Discarding\n");
2532 return 0;
2533 }
2534
2535 if (!bi->ctl_ch) {
2536 ch.chspec = le16_to_cpu(bi->chanspec);
2537 cfg->d11inf.decchspec(&ch);
2538 bi->ctl_ch = ch.chnum;
2539 }
2540 channel = bi->ctl_ch;
2541
2542 if (channel <= CH_MAX_2G_CHANNEL)
2543 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2544 else
2545 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2546
2547 freq = ieee80211_channel_to_frequency(channel, band->band);
2548 notify_channel = ieee80211_get_channel(wiphy, freq);
2549
2550 notify_capability = le16_to_cpu(bi->capability);
2551 notify_interval = le16_to_cpu(bi->beacon_period);
2552 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2553 notify_ielen = le32_to_cpu(bi->ie_length);
2554 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2555
2556 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2557 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2558 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2559 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2560 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2561
2562 bss = cfg80211_inform_bss(wiphy, notify_channel,
2563 CFG80211_BSS_FTYPE_UNKNOWN,
2564 (const u8 *)bi->BSSID,
2565 0, notify_capability,
2566 notify_interval, notify_ie,
2567 notify_ielen, notify_signal,
2568 GFP_KERNEL);
2569
2570 if (!bss)
2571 return -ENOMEM;
2572
2573 cfg80211_put_bss(wiphy, bss);
2574
2575 return 0;
2576 }
2577
2578 static struct brcmf_bss_info_le *
2579 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2580 {
2581 if (bss == NULL)
2582 return list->bss_info_le;
2583 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2584 le32_to_cpu(bss->length));
2585 }
2586
2587 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2588 {
2589 struct brcmf_scan_results *bss_list;
2590 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2591 s32 err = 0;
2592 int i;
2593
2594 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2595 if (bss_list->count != 0 &&
2596 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2597 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2598 bss_list->version);
2599 return -EOPNOTSUPP;
2600 }
2601 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2602 for (i = 0; i < bss_list->count; i++) {
2603 bi = next_bss_le(bss_list, bi);
2604 err = brcmf_inform_single_bss(cfg, bi);
2605 if (err)
2606 break;
2607 }
2608 return err;
2609 }
2610
2611 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2612 struct net_device *ndev, const u8 *bssid)
2613 {
2614 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2615 struct ieee80211_channel *notify_channel;
2616 struct brcmf_bss_info_le *bi = NULL;
2617 struct ieee80211_supported_band *band;
2618 struct cfg80211_bss *bss;
2619 struct brcmu_chan ch;
2620 u8 *buf = NULL;
2621 s32 err = 0;
2622 u32 freq;
2623 u16 notify_capability;
2624 u16 notify_interval;
2625 u8 *notify_ie;
2626 size_t notify_ielen;
2627 s32 notify_signal;
2628
2629 brcmf_dbg(TRACE, "Enter\n");
2630
2631 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2632 if (buf == NULL) {
2633 err = -ENOMEM;
2634 goto CleanUp;
2635 }
2636
2637 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2638
2639 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2640 buf, WL_BSS_INFO_MAX);
2641 if (err) {
2642 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2643 goto CleanUp;
2644 }
2645
2646 bi = (struct brcmf_bss_info_le *)(buf + 4);
2647
2648 ch.chspec = le16_to_cpu(bi->chanspec);
2649 cfg->d11inf.decchspec(&ch);
2650
2651 if (ch.band == BRCMU_CHAN_BAND_2G)
2652 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2653 else
2654 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2655
2656 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2657 notify_channel = ieee80211_get_channel(wiphy, freq);
2658
2659 notify_capability = le16_to_cpu(bi->capability);
2660 notify_interval = le16_to_cpu(bi->beacon_period);
2661 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2662 notify_ielen = le32_to_cpu(bi->ie_length);
2663 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2664
2665 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2666 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2667 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2668 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2669
2670 bss = cfg80211_inform_bss(wiphy, notify_channel,
2671 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2672 notify_capability, notify_interval,
2673 notify_ie, notify_ielen, notify_signal,
2674 GFP_KERNEL);
2675
2676 if (!bss) {
2677 err = -ENOMEM;
2678 goto CleanUp;
2679 }
2680
2681 cfg80211_put_bss(wiphy, bss);
2682
2683 CleanUp:
2684
2685 kfree(buf);
2686
2687 brcmf_dbg(TRACE, "Exit\n");
2688
2689 return err;
2690 }
2691
2692 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2693 struct brcmf_if *ifp)
2694 {
2695 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2696 struct brcmf_bss_info_le *bi;
2697 struct brcmf_ssid *ssid;
2698 const struct brcmf_tlv *tim;
2699 u16 beacon_interval;
2700 u8 dtim_period;
2701 size_t ie_len;
2702 u8 *ie;
2703 s32 err = 0;
2704
2705 brcmf_dbg(TRACE, "Enter\n");
2706 if (brcmf_is_ibssmode(ifp->vif))
2707 return err;
2708
2709 ssid = &profile->ssid;
2710
2711 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2712 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2713 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2714 if (err) {
2715 brcmf_err("Could not get bss info %d\n", err);
2716 goto update_bss_info_out;
2717 }
2718
2719 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2720 err = brcmf_inform_single_bss(cfg, bi);
2721 if (err)
2722 goto update_bss_info_out;
2723
2724 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2725 ie_len = le32_to_cpu(bi->ie_length);
2726 beacon_interval = le16_to_cpu(bi->beacon_period);
2727
2728 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2729 if (tim)
2730 dtim_period = tim->data[1];
2731 else {
2732 /*
2733 * active scan was done so we could not get dtim
2734 * information out of probe response.
2735 * so we speficially query dtim information to dongle.
2736 */
2737 u32 var;
2738 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2739 if (err) {
2740 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2741 goto update_bss_info_out;
2742 }
2743 dtim_period = (u8)var;
2744 }
2745
2746 update_bss_info_out:
2747 brcmf_dbg(TRACE, "Exit");
2748 return err;
2749 }
2750
2751 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2752 {
2753 struct escan_info *escan = &cfg->escan_info;
2754
2755 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2756 if (cfg->scan_request) {
2757 escan->escan_state = WL_ESCAN_STATE_IDLE;
2758 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2759 }
2760 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2761 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2762 }
2763
2764 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2765 {
2766 struct brcmf_cfg80211_info *cfg =
2767 container_of(work, struct brcmf_cfg80211_info,
2768 escan_timeout_work);
2769
2770 brcmf_inform_bss(cfg);
2771 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2772 }
2773
2774 static void brcmf_escan_timeout(unsigned long data)
2775 {
2776 struct brcmf_cfg80211_info *cfg =
2777 (struct brcmf_cfg80211_info *)data;
2778
2779 if (cfg->scan_request) {
2780 brcmf_err("timer expired\n");
2781 schedule_work(&cfg->escan_timeout_work);
2782 }
2783 }
2784
2785 static s32
2786 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2787 struct brcmf_bss_info_le *bss,
2788 struct brcmf_bss_info_le *bss_info_le)
2789 {
2790 struct brcmu_chan ch_bss, ch_bss_info_le;
2791
2792 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2793 cfg->d11inf.decchspec(&ch_bss);
2794 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2795 cfg->d11inf.decchspec(&ch_bss_info_le);
2796
2797 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2798 ch_bss.band == ch_bss_info_le.band &&
2799 bss_info_le->SSID_len == bss->SSID_len &&
2800 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2801 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2802 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2803 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2804 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2805
2806 /* preserve max RSSI if the measurements are
2807 * both on-channel or both off-channel
2808 */
2809 if (bss_info_rssi > bss_rssi)
2810 bss->RSSI = bss_info_le->RSSI;
2811 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2812 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2813 /* preserve the on-channel rssi measurement
2814 * if the new measurement is off channel
2815 */
2816 bss->RSSI = bss_info_le->RSSI;
2817 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2818 }
2819 return 1;
2820 }
2821 return 0;
2822 }
2823
2824 static s32
2825 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2826 const struct brcmf_event_msg *e, void *data)
2827 {
2828 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2829 s32 status;
2830 struct brcmf_escan_result_le *escan_result_le;
2831 struct brcmf_bss_info_le *bss_info_le;
2832 struct brcmf_bss_info_le *bss = NULL;
2833 u32 bi_length;
2834 struct brcmf_scan_results *list;
2835 u32 i;
2836 bool aborted;
2837
2838 status = e->status;
2839
2840 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2841 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2842 return -EPERM;
2843 }
2844
2845 if (status == BRCMF_E_STATUS_PARTIAL) {
2846 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2847 escan_result_le = (struct brcmf_escan_result_le *) data;
2848 if (!escan_result_le) {
2849 brcmf_err("Invalid escan result (NULL pointer)\n");
2850 goto exit;
2851 }
2852 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2853 brcmf_err("Invalid bss_count %d: ignoring\n",
2854 escan_result_le->bss_count);
2855 goto exit;
2856 }
2857 bss_info_le = &escan_result_le->bss_info_le;
2858
2859 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2860 goto exit;
2861
2862 if (!cfg->scan_request) {
2863 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2864 goto exit;
2865 }
2866
2867 bi_length = le32_to_cpu(bss_info_le->length);
2868 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2869 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2870 brcmf_err("Invalid bss_info length %d: ignoring\n",
2871 bi_length);
2872 goto exit;
2873 }
2874
2875 if (!(cfg_to_wiphy(cfg)->interface_modes &
2876 BIT(NL80211_IFTYPE_ADHOC))) {
2877 if (le16_to_cpu(bss_info_le->capability) &
2878 WLAN_CAPABILITY_IBSS) {
2879 brcmf_err("Ignoring IBSS result\n");
2880 goto exit;
2881 }
2882 }
2883
2884 list = (struct brcmf_scan_results *)
2885 cfg->escan_info.escan_buf;
2886 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2887 brcmf_err("Buffer is too small: ignoring\n");
2888 goto exit;
2889 }
2890
2891 for (i = 0; i < list->count; i++) {
2892 bss = bss ? (struct brcmf_bss_info_le *)
2893 ((unsigned char *)bss +
2894 le32_to_cpu(bss->length)) : list->bss_info_le;
2895 if (brcmf_compare_update_same_bss(cfg, bss,
2896 bss_info_le))
2897 goto exit;
2898 }
2899 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2900 bss_info_le, bi_length);
2901 list->version = le32_to_cpu(bss_info_le->version);
2902 list->buflen += bi_length;
2903 list->count++;
2904 } else {
2905 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2906 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2907 goto exit;
2908 if (cfg->scan_request) {
2909 brcmf_inform_bss(cfg);
2910 aborted = status != BRCMF_E_STATUS_SUCCESS;
2911 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2912 } else
2913 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2914 status);
2915 }
2916 exit:
2917 return 0;
2918 }
2919
2920 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2921 {
2922 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2923 brcmf_cfg80211_escan_handler);
2924 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2925 /* Init scan_timeout timer */
2926 init_timer(&cfg->escan_timeout);
2927 cfg->escan_timeout.data = (unsigned long) cfg;
2928 cfg->escan_timeout.function = brcmf_escan_timeout;
2929 INIT_WORK(&cfg->escan_timeout_work,
2930 brcmf_cfg80211_escan_timeout_worker);
2931 }
2932
2933 static __always_inline void brcmf_delay(u32 ms)
2934 {
2935 if (ms < 1000 / HZ) {
2936 cond_resched();
2937 mdelay(ms);
2938 } else {
2939 msleep(ms);
2940 }
2941 }
2942
2943 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2944 u8 *pattern, u32 patternsize, u8 *mask,
2945 u32 packet_offset)
2946 {
2947 struct brcmf_fil_wowl_pattern_le *filter;
2948 u32 masksize;
2949 u32 patternoffset;
2950 u8 *buf;
2951 u32 bufsize;
2952 s32 ret;
2953
2954 masksize = (patternsize + 7) / 8;
2955 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2956
2957 bufsize = sizeof(*filter) + patternsize + masksize;
2958 buf = kzalloc(bufsize, GFP_KERNEL);
2959 if (!buf)
2960 return -ENOMEM;
2961 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2962
2963 memcpy(filter->cmd, cmd, 4);
2964 filter->masksize = cpu_to_le32(masksize);
2965 filter->offset = cpu_to_le32(packet_offset);
2966 filter->patternoffset = cpu_to_le32(patternoffset);
2967 filter->patternsize = cpu_to_le32(patternsize);
2968 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2969
2970 if ((mask) && (masksize))
2971 memcpy(buf + sizeof(*filter), mask, masksize);
2972 if ((pattern) && (patternsize))
2973 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2974
2975 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2976
2977 kfree(buf);
2978 return ret;
2979 }
2980
2981 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2982 {
2983 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2984 struct net_device *ndev = cfg_to_ndev(cfg);
2985 struct brcmf_if *ifp = netdev_priv(ndev);
2986
2987 brcmf_dbg(TRACE, "Enter\n");
2988
2989 if (cfg->wowl_enabled) {
2990 brcmf_configure_arp_offload(ifp, true);
2991 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2992 cfg->pre_wowl_pmmode);
2993 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2994 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2995 cfg->wowl_enabled = false;
2996 }
2997 return 0;
2998 }
2999
3000 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
3001 struct brcmf_if *ifp,
3002 struct cfg80211_wowlan *wowl)
3003 {
3004 u32 wowl_config;
3005 u32 i;
3006
3007 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
3008
3009 brcmf_configure_arp_offload(ifp, false);
3010 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
3011 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
3012
3013 wowl_config = 0;
3014 if (wowl->disconnect)
3015 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
3016 if (wowl->magic_pkt)
3017 wowl_config |= BRCMF_WOWL_MAGIC;
3018 if ((wowl->patterns) && (wowl->n_patterns)) {
3019 wowl_config |= BRCMF_WOWL_NET;
3020 for (i = 0; i < wowl->n_patterns; i++) {
3021 brcmf_config_wowl_pattern(ifp, "add",
3022 (u8 *)wowl->patterns[i].pattern,
3023 wowl->patterns[i].pattern_len,
3024 (u8 *)wowl->patterns[i].mask,
3025 wowl->patterns[i].pkt_offset);
3026 }
3027 }
3028 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3029 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3030 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3031 cfg->wowl_enabled = true;
3032 }
3033
3034 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3035 struct cfg80211_wowlan *wowl)
3036 {
3037 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3038 struct net_device *ndev = cfg_to_ndev(cfg);
3039 struct brcmf_if *ifp = netdev_priv(ndev);
3040 struct brcmf_cfg80211_vif *vif;
3041
3042 brcmf_dbg(TRACE, "Enter\n");
3043
3044 /* if the primary net_device is not READY there is nothing
3045 * we can do but pray resume goes smoothly.
3046 */
3047 if (!check_vif_up(ifp->vif))
3048 goto exit;
3049
3050 /* end any scanning */
3051 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3052 brcmf_abort_scanning(cfg);
3053
3054 if (wowl == NULL) {
3055 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3056 list_for_each_entry(vif, &cfg->vif_list, list) {
3057 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3058 continue;
3059 /* While going to suspend if associated with AP
3060 * disassociate from AP to save power while system is
3061 * in suspended state
3062 */
3063 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED);
3064 /* Make sure WPA_Supplicant receives all the event
3065 * generated due to DISASSOC call to the fw to keep
3066 * the state fw and WPA_Supplicant state consistent
3067 */
3068 brcmf_delay(500);
3069 }
3070 /* Configure MPC */
3071 brcmf_set_mpc(ifp, 1);
3072
3073 } else {
3074 /* Configure WOWL paramaters */
3075 brcmf_configure_wowl(cfg, ifp, wowl);
3076 }
3077
3078 exit:
3079 brcmf_dbg(TRACE, "Exit\n");
3080 /* clear any scanning activity */
3081 cfg->scan_status = 0;
3082 return 0;
3083 }
3084
3085 static __used s32
3086 brcmf_update_pmklist(struct net_device *ndev,
3087 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3088 {
3089 int i, j;
3090 u32 pmkid_len;
3091
3092 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3093
3094 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
3095 for (i = 0; i < pmkid_len; i++) {
3096 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
3097 &pmk_list->pmkids.pmkid[i].BSSID);
3098 for (j = 0; j < WLAN_PMKID_LEN; j++)
3099 brcmf_dbg(CONN, "%02x\n",
3100 pmk_list->pmkids.pmkid[i].PMKID[j]);
3101 }
3102
3103 if (!err)
3104 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3105 (char *)pmk_list, sizeof(*pmk_list));
3106
3107 return err;
3108 }
3109
3110 static s32
3111 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3112 struct cfg80211_pmksa *pmksa)
3113 {
3114 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3115 struct brcmf_if *ifp = netdev_priv(ndev);
3116 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3117 s32 err = 0;
3118 u32 pmkid_len, i;
3119
3120 brcmf_dbg(TRACE, "Enter\n");
3121 if (!check_vif_up(ifp->vif))
3122 return -EIO;
3123
3124 pmkid_len = le32_to_cpu(pmkids->npmkid);
3125 for (i = 0; i < pmkid_len; i++)
3126 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3127 break;
3128 if (i < WL_NUM_PMKIDS_MAX) {
3129 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3130 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3131 if (i == pmkid_len) {
3132 pmkid_len++;
3133 pmkids->npmkid = cpu_to_le32(pmkid_len);
3134 }
3135 } else
3136 err = -EINVAL;
3137
3138 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3139 pmkids->pmkid[pmkid_len].BSSID);
3140 for (i = 0; i < WLAN_PMKID_LEN; i++)
3141 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3142
3143 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3144
3145 brcmf_dbg(TRACE, "Exit\n");
3146 return err;
3147 }
3148
3149 static s32
3150 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3151 struct cfg80211_pmksa *pmksa)
3152 {
3153 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3154 struct brcmf_if *ifp = netdev_priv(ndev);
3155 struct pmkid_list pmkid;
3156 s32 err = 0;
3157 u32 pmkid_len, i;
3158
3159 brcmf_dbg(TRACE, "Enter\n");
3160 if (!check_vif_up(ifp->vif))
3161 return -EIO;
3162
3163 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3164 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3165
3166 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3167 &pmkid.pmkid[0].BSSID);
3168 for (i = 0; i < WLAN_PMKID_LEN; i++)
3169 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3170
3171 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3172 for (i = 0; i < pmkid_len; i++)
3173 if (!memcmp
3174 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3175 ETH_ALEN))
3176 break;
3177
3178 if ((pmkid_len > 0)
3179 && (i < pmkid_len)) {
3180 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3181 sizeof(struct pmkid));
3182 for (; i < (pmkid_len - 1); i++) {
3183 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3184 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3185 ETH_ALEN);
3186 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3187 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3188 WLAN_PMKID_LEN);
3189 }
3190 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3191 } else
3192 err = -EINVAL;
3193
3194 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3195
3196 brcmf_dbg(TRACE, "Exit\n");
3197 return err;
3198
3199 }
3200
3201 static s32
3202 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3203 {
3204 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3205 struct brcmf_if *ifp = netdev_priv(ndev);
3206 s32 err = 0;
3207
3208 brcmf_dbg(TRACE, "Enter\n");
3209 if (!check_vif_up(ifp->vif))
3210 return -EIO;
3211
3212 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3213 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3214
3215 brcmf_dbg(TRACE, "Exit\n");
3216 return err;
3217
3218 }
3219
3220 /*
3221 * PFN result doesn't have all the info which are
3222 * required by the supplicant
3223 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3224 * via wl_inform_single_bss in the required format. Escan does require the
3225 * scan request in the form of cfg80211_scan_request. For timebeing, create
3226 * cfg80211_scan_request one out of the received PNO event.
3227 */
3228 static s32
3229 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3230 const struct brcmf_event_msg *e, void *data)
3231 {
3232 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3233 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3234 struct cfg80211_scan_request *request = NULL;
3235 struct cfg80211_ssid *ssid = NULL;
3236 struct ieee80211_channel *channel = NULL;
3237 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3238 int err = 0;
3239 int channel_req = 0;
3240 int band = 0;
3241 struct brcmf_pno_scanresults_le *pfn_result;
3242 u32 result_count;
3243 u32 status;
3244
3245 brcmf_dbg(SCAN, "Enter\n");
3246
3247 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3248 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3249 return 0;
3250 }
3251
3252 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3253 result_count = le32_to_cpu(pfn_result->count);
3254 status = le32_to_cpu(pfn_result->status);
3255
3256 /*
3257 * PFN event is limited to fit 512 bytes so we may get
3258 * multiple NET_FOUND events. For now place a warning here.
3259 */
3260 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3261 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3262 if (result_count > 0) {
3263 int i;
3264
3265 request = kzalloc(sizeof(*request), GFP_KERNEL);
3266 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3267 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3268 if (!request || !ssid || !channel) {
3269 err = -ENOMEM;
3270 goto out_err;
3271 }
3272
3273 request->wiphy = wiphy;
3274 data += sizeof(struct brcmf_pno_scanresults_le);
3275 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3276
3277 for (i = 0; i < result_count; i++) {
3278 netinfo = &netinfo_start[i];
3279 if (!netinfo) {
3280 brcmf_err("Invalid netinfo ptr. index: %d\n",
3281 i);
3282 err = -EINVAL;
3283 goto out_err;
3284 }
3285
3286 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3287 netinfo->SSID, netinfo->channel);
3288 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3289 ssid[i].ssid_len = netinfo->SSID_len;
3290 request->n_ssids++;
3291
3292 channel_req = netinfo->channel;
3293 if (channel_req <= CH_MAX_2G_CHANNEL)
3294 band = NL80211_BAND_2GHZ;
3295 else
3296 band = NL80211_BAND_5GHZ;
3297 channel[i].center_freq =
3298 ieee80211_channel_to_frequency(channel_req,
3299 band);
3300 channel[i].band = band;
3301 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3302 request->channels[i] = &channel[i];
3303 request->n_channels++;
3304 }
3305
3306 /* assign parsed ssid array */
3307 if (request->n_ssids)
3308 request->ssids = &ssid[0];
3309
3310 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3311 /* Abort any on-going scan */
3312 brcmf_abort_scanning(cfg);
3313 }
3314
3315 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3316 cfg->escan_info.run = brcmf_run_escan;
3317 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3318 if (err) {
3319 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3320 goto out_err;
3321 }
3322 cfg->sched_escan = true;
3323 cfg->scan_request = request;
3324 } else {
3325 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3326 goto out_err;
3327 }
3328
3329 kfree(ssid);
3330 kfree(channel);
3331 kfree(request);
3332 return 0;
3333
3334 out_err:
3335 kfree(ssid);
3336 kfree(channel);
3337 kfree(request);
3338 cfg80211_sched_scan_stopped(wiphy);
3339 return err;
3340 }
3341
3342 static int brcmf_dev_pno_clean(struct net_device *ndev)
3343 {
3344 int ret;
3345
3346 /* Disable pfn */
3347 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3348 if (ret == 0) {
3349 /* clear pfn */
3350 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3351 NULL, 0);
3352 }
3353 if (ret < 0)
3354 brcmf_err("failed code %d\n", ret);
3355
3356 return ret;
3357 }
3358
3359 static int brcmf_dev_pno_config(struct net_device *ndev)
3360 {
3361 struct brcmf_pno_param_le pfn_param;
3362
3363 memset(&pfn_param, 0, sizeof(pfn_param));
3364 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3365
3366 /* set extra pno params */
3367 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3368 pfn_param.repeat = BRCMF_PNO_REPEAT;
3369 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3370
3371 /* set up pno scan fr */
3372 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3373
3374 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3375 &pfn_param, sizeof(pfn_param));
3376 }
3377
3378 static int
3379 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3380 struct net_device *ndev,
3381 struct cfg80211_sched_scan_request *request)
3382 {
3383 struct brcmf_if *ifp = netdev_priv(ndev);
3384 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3385 struct brcmf_pno_net_param_le pfn;
3386 int i;
3387 int ret = 0;
3388
3389 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3390 request->n_match_sets, request->n_ssids);
3391 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3392 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3393 return -EAGAIN;
3394 }
3395 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3396 brcmf_err("Scanning suppressed: status (%lu)\n",
3397 cfg->scan_status);
3398 return -EAGAIN;
3399 }
3400
3401 if (!request->n_ssids || !request->n_match_sets) {
3402 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3403 request->n_ssids);
3404 return -EINVAL;
3405 }
3406
3407 if (request->n_ssids > 0) {
3408 for (i = 0; i < request->n_ssids; i++) {
3409 /* Active scan req for ssids */
3410 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3411 request->ssids[i].ssid);
3412
3413 /*
3414 * match_set ssids is a supert set of n_ssid list,
3415 * so we need not add these set seperately.
3416 */
3417 }
3418 }
3419
3420 if (request->n_match_sets > 0) {
3421 /* clean up everything */
3422 ret = brcmf_dev_pno_clean(ndev);
3423 if (ret < 0) {
3424 brcmf_err("failed error=%d\n", ret);
3425 return ret;
3426 }
3427
3428 /* configure pno */
3429 ret = brcmf_dev_pno_config(ndev);
3430 if (ret < 0) {
3431 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3432 return -EINVAL;
3433 }
3434
3435 /* configure each match set */
3436 for (i = 0; i < request->n_match_sets; i++) {
3437 struct cfg80211_ssid *ssid;
3438 u32 ssid_len;
3439
3440 ssid = &request->match_sets[i].ssid;
3441 ssid_len = ssid->ssid_len;
3442
3443 if (!ssid_len) {
3444 brcmf_err("skip broadcast ssid\n");
3445 continue;
3446 }
3447 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3448 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3449 pfn.wsec = cpu_to_le32(0);
3450 pfn.infra = cpu_to_le32(1);
3451 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3452 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3453 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3454 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3455 sizeof(pfn));
3456 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3457 ret == 0 ? "set" : "failed", ssid->ssid);
3458 }
3459 /* Enable the PNO */
3460 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3461 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3462 return -EINVAL;
3463 }
3464 } else {
3465 return -EINVAL;
3466 }
3467
3468 return 0;
3469 }
3470
3471 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3472 struct net_device *ndev)
3473 {
3474 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3475
3476 brcmf_dbg(SCAN, "enter\n");
3477 brcmf_dev_pno_clean(ndev);
3478 if (cfg->sched_escan)
3479 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3480 return 0;
3481 }
3482
3483 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3484 {
3485 s32 err;
3486
3487 /* set auth */
3488 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3489 if (err < 0) {
3490 brcmf_err("auth error %d\n", err);
3491 return err;
3492 }
3493 /* set wsec */
3494 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3495 if (err < 0) {
3496 brcmf_err("wsec error %d\n", err);
3497 return err;
3498 }
3499 /* set upper-layer auth */
3500 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3501 if (err < 0) {
3502 brcmf_err("wpa_auth error %d\n", err);
3503 return err;
3504 }
3505
3506 return 0;
3507 }
3508
3509 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3510 {
3511 if (is_rsn_ie)
3512 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3513
3514 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3515 }
3516
3517 static s32
3518 brcmf_configure_wpaie(struct brcmf_if *ifp,
3519 const struct brcmf_vs_tlv *wpa_ie,
3520 bool is_rsn_ie)
3521 {
3522 u32 auth = 0; /* d11 open authentication */
3523 u16 count;
3524 s32 err = 0;
3525 s32 len = 0;
3526 u32 i;
3527 u32 wsec;
3528 u32 pval = 0;
3529 u32 gval = 0;
3530 u32 wpa_auth = 0;
3531 u32 offset;
3532 u8 *data;
3533 u16 rsn_cap;
3534 u32 wme_bss_disable;
3535
3536 brcmf_dbg(TRACE, "Enter\n");
3537 if (wpa_ie == NULL)
3538 goto exit;
3539
3540 len = wpa_ie->len + TLV_HDR_LEN;
3541 data = (u8 *)wpa_ie;
3542 offset = TLV_HDR_LEN;
3543 if (!is_rsn_ie)
3544 offset += VS_IE_FIXED_HDR_LEN;
3545 else
3546 offset += WPA_IE_VERSION_LEN;
3547
3548 /* check for multicast cipher suite */
3549 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3550 err = -EINVAL;
3551 brcmf_err("no multicast cipher suite\n");
3552 goto exit;
3553 }
3554
3555 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3556 err = -EINVAL;
3557 brcmf_err("ivalid OUI\n");
3558 goto exit;
3559 }
3560 offset += TLV_OUI_LEN;
3561
3562 /* pick up multicast cipher */
3563 switch (data[offset]) {
3564 case WPA_CIPHER_NONE:
3565 gval = 0;
3566 break;
3567 case WPA_CIPHER_WEP_40:
3568 case WPA_CIPHER_WEP_104:
3569 gval = WEP_ENABLED;
3570 break;
3571 case WPA_CIPHER_TKIP:
3572 gval = TKIP_ENABLED;
3573 break;
3574 case WPA_CIPHER_AES_CCM:
3575 gval = AES_ENABLED;
3576 break;
3577 default:
3578 err = -EINVAL;
3579 brcmf_err("Invalid multi cast cipher info\n");
3580 goto exit;
3581 }
3582
3583 offset++;
3584 /* walk thru unicast cipher list and pick up what we recognize */
3585 count = data[offset] + (data[offset + 1] << 8);
3586 offset += WPA_IE_SUITE_COUNT_LEN;
3587 /* Check for unicast suite(s) */
3588 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3589 err = -EINVAL;
3590 brcmf_err("no unicast cipher suite\n");
3591 goto exit;
3592 }
3593 for (i = 0; i < count; i++) {
3594 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3595 err = -EINVAL;
3596 brcmf_err("ivalid OUI\n");
3597 goto exit;
3598 }
3599 offset += TLV_OUI_LEN;
3600 switch (data[offset]) {
3601 case WPA_CIPHER_NONE:
3602 break;
3603 case WPA_CIPHER_WEP_40:
3604 case WPA_CIPHER_WEP_104:
3605 pval |= WEP_ENABLED;
3606 break;
3607 case WPA_CIPHER_TKIP:
3608 pval |= TKIP_ENABLED;
3609 break;
3610 case WPA_CIPHER_AES_CCM:
3611 pval |= AES_ENABLED;
3612 break;
3613 default:
3614 brcmf_err("Ivalid unicast security info\n");
3615 }
3616 offset++;
3617 }
3618 /* walk thru auth management suite list and pick up what we recognize */
3619 count = data[offset] + (data[offset + 1] << 8);
3620 offset += WPA_IE_SUITE_COUNT_LEN;
3621 /* Check for auth key management suite(s) */
3622 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3623 err = -EINVAL;
3624 brcmf_err("no auth key mgmt suite\n");
3625 goto exit;
3626 }
3627 for (i = 0; i < count; i++) {
3628 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3629 err = -EINVAL;
3630 brcmf_err("ivalid OUI\n");
3631 goto exit;
3632 }
3633 offset += TLV_OUI_LEN;
3634 switch (data[offset]) {
3635 case RSN_AKM_NONE:
3636 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3637 wpa_auth |= WPA_AUTH_NONE;
3638 break;
3639 case RSN_AKM_UNSPECIFIED:
3640 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3641 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3642 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3643 break;
3644 case RSN_AKM_PSK:
3645 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3646 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3647 (wpa_auth |= WPA_AUTH_PSK);
3648 break;
3649 default:
3650 brcmf_err("Ivalid key mgmt info\n");
3651 }
3652 offset++;
3653 }
3654
3655 if (is_rsn_ie) {
3656 wme_bss_disable = 1;
3657 if ((offset + RSN_CAP_LEN) <= len) {
3658 rsn_cap = data[offset] + (data[offset + 1] << 8);
3659 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3660 wme_bss_disable = 0;
3661 }
3662 /* set wme_bss_disable to sync RSN Capabilities */
3663 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3664 wme_bss_disable);
3665 if (err < 0) {
3666 brcmf_err("wme_bss_disable error %d\n", err);
3667 goto exit;
3668 }
3669 }
3670 /* FOR WPS , set SES_OW_ENABLED */
3671 wsec = (pval | gval | SES_OW_ENABLED);
3672
3673 /* set auth */
3674 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3675 if (err < 0) {
3676 brcmf_err("auth error %d\n", err);
3677 goto exit;
3678 }
3679 /* set wsec */
3680 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3681 if (err < 0) {
3682 brcmf_err("wsec error %d\n", err);
3683 goto exit;
3684 }
3685 /* set upper-layer auth */
3686 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3687 if (err < 0) {
3688 brcmf_err("wpa_auth error %d\n", err);
3689 goto exit;
3690 }
3691
3692 exit:
3693 return err;
3694 }
3695
3696 static s32
3697 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3698 struct parsed_vndr_ies *vndr_ies)
3699 {
3700 struct brcmf_vs_tlv *vndrie;
3701 struct brcmf_tlv *ie;
3702 struct parsed_vndr_ie_info *parsed_info;
3703 s32 remaining_len;
3704
3705 remaining_len = (s32)vndr_ie_len;
3706 memset(vndr_ies, 0, sizeof(*vndr_ies));
3707
3708 ie = (struct brcmf_tlv *)vndr_ie_buf;
3709 while (ie) {
3710 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3711 goto next;
3712 vndrie = (struct brcmf_vs_tlv *)ie;
3713 /* len should be bigger than OUI length + one */
3714 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3715 brcmf_err("invalid vndr ie. length is too small %d\n",
3716 vndrie->len);
3717 goto next;
3718 }
3719 /* if wpa or wme ie, do not add ie */
3720 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3721 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3722 (vndrie->oui_type == WME_OUI_TYPE))) {
3723 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3724 goto next;
3725 }
3726
3727 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3728
3729 /* save vndr ie information */
3730 parsed_info->ie_ptr = (char *)vndrie;
3731 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3732 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3733
3734 vndr_ies->count++;
3735
3736 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3737 parsed_info->vndrie.oui[0],
3738 parsed_info->vndrie.oui[1],
3739 parsed_info->vndrie.oui[2],
3740 parsed_info->vndrie.oui_type);
3741
3742 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3743 break;
3744 next:
3745 remaining_len -= (ie->len + TLV_HDR_LEN);
3746 if (remaining_len <= TLV_HDR_LEN)
3747 ie = NULL;
3748 else
3749 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3750 TLV_HDR_LEN);
3751 }
3752 return 0;
3753 }
3754
3755 static u32
3756 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3757 {
3758
3759 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3760 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3761
3762 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]);
3763
3764 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]);
3765
3766 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3767
3768 return ie_len + VNDR_IE_HDR_SIZE;
3769 }
3770
3771 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3772 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3773 {
3774 struct brcmf_if *ifp;
3775 struct vif_saved_ie *saved_ie;
3776 s32 err = 0;
3777 u8 *iovar_ie_buf;
3778 u8 *curr_ie_buf;
3779 u8 *mgmt_ie_buf = NULL;
3780 int mgmt_ie_buf_len;
3781 u32 *mgmt_ie_len;
3782 u32 del_add_ie_buf_len = 0;
3783 u32 total_ie_buf_len = 0;
3784 u32 parsed_ie_buf_len = 0;
3785 struct parsed_vndr_ies old_vndr_ies;
3786 struct parsed_vndr_ies new_vndr_ies;
3787 struct parsed_vndr_ie_info *vndrie_info;
3788 s32 i;
3789 u8 *ptr;
3790 int remained_buf_len;
3791
3792 if (!vif)
3793 return -ENODEV;
3794 ifp = vif->ifp;
3795 saved_ie = &vif->saved_ie;
3796
3797 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3798 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3799 if (!iovar_ie_buf)
3800 return -ENOMEM;
3801 curr_ie_buf = iovar_ie_buf;
3802 switch (pktflag) {
3803 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3804 mgmt_ie_buf = saved_ie->probe_req_ie;
3805 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3806 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3807 break;
3808 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3809 mgmt_ie_buf = saved_ie->probe_res_ie;
3810 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3811 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3812 break;
3813 case BRCMF_VNDR_IE_BEACON_FLAG:
3814 mgmt_ie_buf = saved_ie->beacon_ie;
3815 mgmt_ie_len = &saved_ie->beacon_ie_len;
3816 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3817 break;
3818 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3819 mgmt_ie_buf = saved_ie->assoc_req_ie;
3820 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3821 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3822 break;
3823 default:
3824 err = -EPERM;
3825 brcmf_err("not suitable type\n");
3826 goto exit;
3827 }
3828
3829 if (vndr_ie_len > mgmt_ie_buf_len) {
3830 err = -ENOMEM;
3831 brcmf_err("extra IE size too big\n");
3832 goto exit;
3833 }
3834
3835 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3836 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3837 ptr = curr_ie_buf;
3838 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3839 for (i = 0; i < new_vndr_ies.count; i++) {
3840 vndrie_info = &new_vndr_ies.ie_info[i];
3841 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3842 vndrie_info->ie_len);
3843 parsed_ie_buf_len += vndrie_info->ie_len;
3844 }
3845 }
3846
3847 if (mgmt_ie_buf && *mgmt_ie_len) {
3848 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3849 (memcmp(mgmt_ie_buf, curr_ie_buf,
3850 parsed_ie_buf_len) == 0)) {
3851 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3852 goto exit;
3853 }
3854
3855 /* parse old vndr_ie */
3856 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3857
3858 /* make a command to delete old ie */
3859 for (i = 0; i < old_vndr_ies.count; i++) {
3860 vndrie_info = &old_vndr_ies.ie_info[i];
3861
3862 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3863 vndrie_info->vndrie.id,
3864 vndrie_info->vndrie.len,
3865 vndrie_info->vndrie.oui[0],
3866 vndrie_info->vndrie.oui[1],
3867 vndrie_info->vndrie.oui[2]);
3868
3869 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3870 vndrie_info->ie_ptr,
3871 vndrie_info->ie_len,
3872 "del");
3873 curr_ie_buf += del_add_ie_buf_len;
3874 total_ie_buf_len += del_add_ie_buf_len;
3875 }
3876 }
3877
3878 *mgmt_ie_len = 0;
3879 /* Add if there is any extra IE */
3880 if (mgmt_ie_buf && parsed_ie_buf_len) {
3881 ptr = mgmt_ie_buf;
3882
3883 remained_buf_len = mgmt_ie_buf_len;
3884
3885 /* make a command to add new ie */
3886 for (i = 0; i < new_vndr_ies.count; i++) {
3887 vndrie_info = &new_vndr_ies.ie_info[i];
3888
3889 /* verify remained buf size before copy data */
3890 if (remained_buf_len < (vndrie_info->vndrie.len +
3891 VNDR_IE_VSIE_OFFSET)) {
3892 brcmf_err("no space in mgmt_ie_buf: len left %d",
3893 remained_buf_len);
3894 break;
3895 }
3896 remained_buf_len -= (vndrie_info->ie_len +
3897 VNDR_IE_VSIE_OFFSET);
3898
3899 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3900 vndrie_info->vndrie.id,
3901 vndrie_info->vndrie.len,
3902 vndrie_info->vndrie.oui[0],
3903 vndrie_info->vndrie.oui[1],
3904 vndrie_info->vndrie.oui[2]);
3905
3906 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3907 vndrie_info->ie_ptr,
3908 vndrie_info->ie_len,
3909 "add");
3910
3911 /* save the parsed IE in wl struct */
3912 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3913 vndrie_info->ie_len);
3914 *mgmt_ie_len += vndrie_info->ie_len;
3915
3916 curr_ie_buf += del_add_ie_buf_len;
3917 total_ie_buf_len += del_add_ie_buf_len;
3918 }
3919 }
3920 if (total_ie_buf_len) {
3921 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3922 total_ie_buf_len);
3923 if (err)
3924 brcmf_err("vndr ie set error : %d\n", err);
3925 }
3926
3927 exit:
3928 kfree(iovar_ie_buf);
3929 return err;
3930 }
3931
3932 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3933 {
3934 s32 pktflags[] = {
3935 BRCMF_VNDR_IE_PRBREQ_FLAG,
3936 BRCMF_VNDR_IE_PRBRSP_FLAG,
3937 BRCMF_VNDR_IE_BEACON_FLAG
3938 };
3939 int i;
3940
3941 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3942 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3943
3944 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3945 return 0;
3946 }
3947
3948 static s32
3949 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3950 struct cfg80211_beacon_data *beacon)
3951 {
3952 s32 err;
3953
3954 /* Set Beacon IEs to FW */
3955 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3956 beacon->tail, beacon->tail_len);
3957 if (err) {
3958 brcmf_err("Set Beacon IE Failed\n");
3959 return err;
3960 }
3961 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3962
3963 /* Set Probe Response IEs to FW */
3964 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3965 beacon->proberesp_ies,
3966 beacon->proberesp_ies_len);
3967 if (err)
3968 brcmf_err("Set Probe Resp IE Failed\n");
3969 else
3970 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3971
3972 return err;
3973 }
3974
3975 static s32
3976 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3977 struct cfg80211_ap_settings *settings)
3978 {
3979 s32 ie_offset;
3980 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3981 struct brcmf_if *ifp = netdev_priv(ndev);
3982 const struct brcmf_tlv *ssid_ie;
3983 const struct brcmf_tlv *country_ie;
3984 struct brcmf_ssid_le ssid_le;
3985 s32 err = -EPERM;
3986 const struct brcmf_tlv *rsn_ie;
3987 const struct brcmf_vs_tlv *wpa_ie;
3988 struct brcmf_join_params join_params;
3989 enum nl80211_iftype dev_role;
3990 struct brcmf_fil_bss_enable_le bss_enable;
3991 u16 chanspec;
3992 bool mbss;
3993 int is_11d;
3994
3995 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3996 settings->chandef.chan->hw_value,
3997 settings->chandef.center_freq1, settings->chandef.width,
3998 settings->beacon_interval, settings->dtim_period);
3999 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
4000 settings->ssid, settings->ssid_len, settings->auth_type,
4001 settings->inactivity_timeout);
4002 dev_role = ifp->vif->wdev.iftype;
4003 mbss = ifp->vif->mbss;
4004
4005 /* store current 11d setting */
4006 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d);
4007 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4008 settings->beacon.tail_len,
4009 WLAN_EID_COUNTRY);
4010 is_11d = country_ie ? 1 : 0;
4011
4012 memset(&ssid_le, 0, sizeof(ssid_le));
4013 if (settings->ssid == NULL || settings->ssid_len == 0) {
4014 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
4015 ssid_ie = brcmf_parse_tlvs(
4016 (u8 *)&settings->beacon.head[ie_offset],
4017 settings->beacon.head_len - ie_offset,
4018 WLAN_EID_SSID);
4019 if (!ssid_ie)
4020 return -EINVAL;
4021
4022 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
4023 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4024 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4025 } else {
4026 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4027 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4028 }
4029
4030 if (!mbss) {
4031 brcmf_set_mpc(ifp, 0);
4032 brcmf_configure_arp_offload(ifp, false);
4033 }
4034
4035 /* find the RSN_IE */
4036 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4037 settings->beacon.tail_len, WLAN_EID_RSN);
4038
4039 /* find the WPA_IE */
4040 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4041 settings->beacon.tail_len);
4042
4043 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4044 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4045 if (wpa_ie != NULL) {
4046 /* WPA IE */
4047 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4048 if (err < 0)
4049 goto exit;
4050 } else {
4051 struct brcmf_vs_tlv *tmp_ie;
4052
4053 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4054
4055 /* RSN IE */
4056 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4057 if (err < 0)
4058 goto exit;
4059 }
4060 } else {
4061 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4062 brcmf_configure_opensecurity(ifp);
4063 }
4064
4065 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4066
4067 if (!mbss) {
4068 chanspec = chandef_to_chanspec(&cfg->d11inf,
4069 &settings->chandef);
4070 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4071 if (err < 0) {
4072 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4073 chanspec, err);
4074 goto exit;
4075 }
4076
4077 if (is_11d != ifp->vif->is_11d) {
4078 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4079 is_11d);
4080 if (err < 0) {
4081 brcmf_err("Regulatory Set Error, %d\n", err);
4082 goto exit;
4083 }
4084 }
4085 if (settings->beacon_interval) {
4086 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4087 settings->beacon_interval);
4088 if (err < 0) {
4089 brcmf_err("Beacon Interval Set Error, %d\n",
4090 err);
4091 goto exit;
4092 }
4093 }
4094 if (settings->dtim_period) {
4095 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4096 settings->dtim_period);
4097 if (err < 0) {
4098 brcmf_err("DTIM Interval Set Error, %d\n", err);
4099 goto exit;
4100 }
4101 }
4102
4103 if (dev_role == NL80211_IFTYPE_AP) {
4104 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4105 if (err < 0) {
4106 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4107 goto exit;
4108 }
4109 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4110 }
4111
4112 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4113 if (err < 0) {
4114 brcmf_err("SET INFRA error %d\n", err);
4115 goto exit;
4116 }
4117 } else if (WARN_ON(is_11d != ifp->vif->is_11d)) {
4118 /* Multiple-BSS should use same 11d configuration */
4119 err = -EINVAL;
4120 goto exit;
4121 }
4122 if (dev_role == NL80211_IFTYPE_AP) {
4123 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4124 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4125
4126 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4127 if (err < 0) {
4128 brcmf_err("setting AP mode failed %d\n", err);
4129 goto exit;
4130 }
4131 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4132 if (err < 0) {
4133 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4134 goto exit;
4135 }
4136 /* On DOWN the firmware removes the WEP keys, reconfigure
4137 * them if they were set.
4138 */
4139 brcmf_cfg80211_reconfigure_wep(ifp);
4140
4141 memset(&join_params, 0, sizeof(join_params));
4142 /* join parameters starts with ssid */
4143 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4144 /* create softap */
4145 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4146 &join_params, sizeof(join_params));
4147 if (err < 0) {
4148 brcmf_err("SET SSID error (%d)\n", err);
4149 goto exit;
4150 }
4151 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4152 } else {
4153 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4154 sizeof(ssid_le));
4155 if (err < 0) {
4156 brcmf_err("setting ssid failed %d\n", err);
4157 goto exit;
4158 }
4159 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4160 bss_enable.enable = cpu_to_le32(1);
4161 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4162 sizeof(bss_enable));
4163 if (err < 0) {
4164 brcmf_err("bss_enable config failed %d\n", err);
4165 goto exit;
4166 }
4167
4168 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4169 }
4170 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4171 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4172
4173 exit:
4174 if ((err) && (!mbss)) {
4175 brcmf_set_mpc(ifp, 1);
4176 brcmf_configure_arp_offload(ifp, true);
4177 }
4178 return err;
4179 }
4180
4181 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4182 {
4183 struct brcmf_if *ifp = netdev_priv(ndev);
4184 s32 err;
4185 struct brcmf_fil_bss_enable_le bss_enable;
4186 struct brcmf_join_params join_params;
4187
4188 brcmf_dbg(TRACE, "Enter\n");
4189
4190 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4191 /* Due to most likely deauths outstanding we sleep */
4192 /* first to make sure they get processed by fw. */
4193 msleep(400);
4194
4195 if (ifp->vif->mbss) {
4196 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4197 return err;
4198 }
4199
4200 memset(&join_params, 0, sizeof(join_params));
4201 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4202 &join_params, sizeof(join_params));
4203 if (err < 0)
4204 brcmf_err("SET SSID error (%d)\n", err);
4205 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4206 if (err < 0)
4207 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4208 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4209 if (err < 0)
4210 brcmf_err("setting AP mode failed %d\n", err);
4211 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4212 if (err < 0)
4213 brcmf_err("setting INFRA mode failed %d\n", err);
4214 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4215 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4216 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4217 ifp->vif->is_11d);
4218 if (err < 0)
4219 brcmf_err("restoring REGULATORY setting failed %d\n",
4220 err);
4221 /* Bring device back up so it can be used again */
4222 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4223 if (err < 0)
4224 brcmf_err("BRCMF_C_UP error %d\n", err);
4225 } else {
4226 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4227 bss_enable.enable = cpu_to_le32(0);
4228 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4229 sizeof(bss_enable));
4230 if (err < 0)
4231 brcmf_err("bss_enable config failed %d\n", err);
4232 }
4233 brcmf_set_mpc(ifp, 1);
4234 brcmf_configure_arp_offload(ifp, true);
4235 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4236 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4237
4238 return err;
4239 }
4240
4241 static s32
4242 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4243 struct cfg80211_beacon_data *info)
4244 {
4245 struct brcmf_if *ifp = netdev_priv(ndev);
4246 s32 err;
4247
4248 brcmf_dbg(TRACE, "Enter\n");
4249
4250 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4251
4252 return err;
4253 }
4254
4255 static int
4256 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4257 struct station_del_parameters *params)
4258 {
4259 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4260 struct brcmf_scb_val_le scbval;
4261 struct brcmf_if *ifp = netdev_priv(ndev);
4262 s32 err;
4263
4264 if (!params->mac)
4265 return -EFAULT;
4266
4267 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4268
4269 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4270 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4271 if (!check_vif_up(ifp->vif))
4272 return -EIO;
4273
4274 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4275 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4276 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4277 &scbval, sizeof(scbval));
4278 if (err)
4279 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4280
4281 brcmf_dbg(TRACE, "Exit\n");
4282 return err;
4283 }
4284
4285 static int
4286 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev,
4287 const u8 *mac, struct station_parameters *params)
4288 {
4289 struct brcmf_if *ifp = netdev_priv(ndev);
4290 s32 err;
4291
4292 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac,
4293 params->sta_flags_mask, params->sta_flags_set);
4294
4295 /* Ignore all 00 MAC */
4296 if (is_zero_ether_addr(mac))
4297 return 0;
4298
4299 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4300 return 0;
4301
4302 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4303 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE,
4304 (void *)mac, ETH_ALEN);
4305 else
4306 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE,
4307 (void *)mac, ETH_ALEN);
4308 if (err < 0)
4309 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err);
4310
4311 return err;
4312 }
4313
4314 static void
4315 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4316 struct wireless_dev *wdev,
4317 u16 frame_type, bool reg)
4318 {
4319 struct brcmf_cfg80211_vif *vif;
4320 u16 mgmt_type;
4321
4322 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4323
4324 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4325 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4326 if (reg)
4327 vif->mgmt_rx_reg |= BIT(mgmt_type);
4328 else
4329 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4330 }
4331
4332
4333 static int
4334 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4335 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4336 {
4337 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4338 struct ieee80211_channel *chan = params->chan;
4339 const u8 *buf = params->buf;
4340 size_t len = params->len;
4341 const struct ieee80211_mgmt *mgmt;
4342 struct brcmf_cfg80211_vif *vif;
4343 s32 err = 0;
4344 s32 ie_offset;
4345 s32 ie_len;
4346 struct brcmf_fil_action_frame_le *action_frame;
4347 struct brcmf_fil_af_params_le *af_params;
4348 bool ack;
4349 s32 chan_nr;
4350 u32 freq;
4351
4352 brcmf_dbg(TRACE, "Enter\n");
4353
4354 *cookie = 0;
4355
4356 mgmt = (const struct ieee80211_mgmt *)buf;
4357
4358 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4359 brcmf_err("Driver only allows MGMT packet type\n");
4360 return -EPERM;
4361 }
4362
4363 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4364
4365 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4366 /* Right now the only reason to get a probe response */
4367 /* is for p2p listen response or for p2p GO from */
4368 /* wpa_supplicant. Unfortunately the probe is send */
4369 /* on primary ndev, while dongle wants it on the p2p */
4370 /* vif. Since this is only reason for a probe */
4371 /* response to be sent, the vif is taken from cfg. */
4372 /* If ever desired to send proberesp for non p2p */
4373 /* response then data should be checked for */
4374 /* "DIRECT-". Note in future supplicant will take */
4375 /* dedicated p2p wdev to do this and then this 'hack'*/
4376 /* is not needed anymore. */
4377 ie_offset = DOT11_MGMT_HDR_LEN +
4378 DOT11_BCN_PRB_FIXED_LEN;
4379 ie_len = len - ie_offset;
4380 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4381 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4382 err = brcmf_vif_set_mgmt_ie(vif,
4383 BRCMF_VNDR_IE_PRBRSP_FLAG,
4384 &buf[ie_offset],
4385 ie_len);
4386 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4387 GFP_KERNEL);
4388 } else if (ieee80211_is_action(mgmt->frame_control)) {
4389 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4390 if (af_params == NULL) {
4391 brcmf_err("unable to allocate frame\n");
4392 err = -ENOMEM;
4393 goto exit;
4394 }
4395 action_frame = &af_params->action_frame;
4396 /* Add the packet Id */
4397 action_frame->packet_id = cpu_to_le32(*cookie);
4398 /* Add BSSID */
4399 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4400 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4401 /* Add the length exepted for 802.11 header */
4402 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4403 /* Add the channel. Use the one specified as parameter if any or
4404 * the current one (got from the firmware) otherwise
4405 */
4406 if (chan)
4407 freq = chan->center_freq;
4408 else
4409 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4410 &freq);
4411 chan_nr = ieee80211_frequency_to_channel(freq);
4412 af_params->channel = cpu_to_le32(chan_nr);
4413
4414 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4415 le16_to_cpu(action_frame->len));
4416
4417 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4418 *cookie, le16_to_cpu(action_frame->len), freq);
4419
4420 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4421 af_params);
4422
4423 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4424 GFP_KERNEL);
4425 kfree(af_params);
4426 } else {
4427 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4428 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4429 }
4430
4431 exit:
4432 return err;
4433 }
4434
4435
4436 static int
4437 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4438 struct wireless_dev *wdev,
4439 u64 cookie)
4440 {
4441 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4442 struct brcmf_cfg80211_vif *vif;
4443 int err = 0;
4444
4445 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4446
4447 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4448 if (vif == NULL) {
4449 brcmf_err("No p2p device available for probe response\n");
4450 err = -ENODEV;
4451 goto exit;
4452 }
4453 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4454 exit:
4455 return err;
4456 }
4457
4458 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4459 struct wireless_dev *wdev,
4460 enum nl80211_crit_proto_id proto,
4461 u16 duration)
4462 {
4463 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4464 struct brcmf_cfg80211_vif *vif;
4465
4466 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4467
4468 /* only DHCP support for now */
4469 if (proto != NL80211_CRIT_PROTO_DHCP)
4470 return -EINVAL;
4471
4472 /* suppress and abort scanning */
4473 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4474 brcmf_abort_scanning(cfg);
4475
4476 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4477 }
4478
4479 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4480 struct wireless_dev *wdev)
4481 {
4482 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4483 struct brcmf_cfg80211_vif *vif;
4484
4485 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4486
4487 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4488 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4489 }
4490
4491 static s32
4492 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4493 const struct brcmf_event_msg *e, void *data)
4494 {
4495 switch (e->reason) {
4496 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4497 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4498 break;
4499 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4500 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4501 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4502 break;
4503 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4504 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4505 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4506 break;
4507 }
4508
4509 return 0;
4510 }
4511
4512 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4513 {
4514 int ret;
4515
4516 switch (oper) {
4517 case NL80211_TDLS_DISCOVERY_REQ:
4518 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4519 break;
4520 case NL80211_TDLS_SETUP:
4521 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4522 break;
4523 case NL80211_TDLS_TEARDOWN:
4524 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4525 break;
4526 default:
4527 brcmf_err("unsupported operation: %d\n", oper);
4528 ret = -EOPNOTSUPP;
4529 }
4530 return ret;
4531 }
4532
4533 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4534 struct net_device *ndev, const u8 *peer,
4535 enum nl80211_tdls_operation oper)
4536 {
4537 struct brcmf_if *ifp;
4538 struct brcmf_tdls_iovar_le info;
4539 int ret = 0;
4540
4541 ret = brcmf_convert_nl80211_tdls_oper(oper);
4542 if (ret < 0)
4543 return ret;
4544
4545 ifp = netdev_priv(ndev);
4546 memset(&info, 0, sizeof(info));
4547 info.mode = (u8)ret;
4548 if (peer)
4549 memcpy(info.ea, peer, ETH_ALEN);
4550
4551 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4552 &info, sizeof(info));
4553 if (ret < 0)
4554 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4555
4556 return ret;
4557 }
4558
4559 static struct cfg80211_ops wl_cfg80211_ops = {
4560 .add_virtual_intf = brcmf_cfg80211_add_iface,
4561 .del_virtual_intf = brcmf_cfg80211_del_iface,
4562 .change_virtual_intf = brcmf_cfg80211_change_iface,
4563 .scan = brcmf_cfg80211_scan,
4564 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4565 .join_ibss = brcmf_cfg80211_join_ibss,
4566 .leave_ibss = brcmf_cfg80211_leave_ibss,
4567 .get_station = brcmf_cfg80211_get_station,
4568 .set_tx_power = brcmf_cfg80211_set_tx_power,
4569 .get_tx_power = brcmf_cfg80211_get_tx_power,
4570 .add_key = brcmf_cfg80211_add_key,
4571 .del_key = brcmf_cfg80211_del_key,
4572 .get_key = brcmf_cfg80211_get_key,
4573 .set_default_key = brcmf_cfg80211_config_default_key,
4574 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4575 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4576 .connect = brcmf_cfg80211_connect,
4577 .disconnect = brcmf_cfg80211_disconnect,
4578 .suspend = brcmf_cfg80211_suspend,
4579 .resume = brcmf_cfg80211_resume,
4580 .set_pmksa = brcmf_cfg80211_set_pmksa,
4581 .del_pmksa = brcmf_cfg80211_del_pmksa,
4582 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4583 .start_ap = brcmf_cfg80211_start_ap,
4584 .stop_ap = brcmf_cfg80211_stop_ap,
4585 .change_beacon = brcmf_cfg80211_change_beacon,
4586 .del_station = brcmf_cfg80211_del_station,
4587 .change_station = brcmf_cfg80211_change_station,
4588 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4589 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4590 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4591 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4592 .remain_on_channel = brcmf_p2p_remain_on_channel,
4593 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4594 .start_p2p_device = brcmf_p2p_start_device,
4595 .stop_p2p_device = brcmf_p2p_stop_device,
4596 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4597 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4598 .tdls_oper = brcmf_cfg80211_tdls_oper,
4599 };
4600
4601 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4602 enum nl80211_iftype type,
4603 bool pm_block)
4604 {
4605 struct brcmf_cfg80211_vif *vif_walk;
4606 struct brcmf_cfg80211_vif *vif;
4607 bool mbss;
4608
4609 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4610 sizeof(*vif));
4611 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4612 if (!vif)
4613 return ERR_PTR(-ENOMEM);
4614
4615 vif->wdev.wiphy = cfg->wiphy;
4616 vif->wdev.iftype = type;
4617
4618 vif->pm_block = pm_block;
4619 vif->roam_off = -1;
4620
4621 brcmf_init_prof(&vif->profile);
4622
4623 if (type == NL80211_IFTYPE_AP) {
4624 mbss = false;
4625 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
4626 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
4627 mbss = true;
4628 break;
4629 }
4630 }
4631 vif->mbss = mbss;
4632 }
4633
4634 list_add_tail(&vif->list, &cfg->vif_list);
4635 return vif;
4636 }
4637
4638 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4639 {
4640 list_del(&vif->list);
4641 kfree(vif);
4642 }
4643
4644 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4645 {
4646 struct brcmf_cfg80211_vif *vif;
4647 struct brcmf_if *ifp;
4648
4649 ifp = netdev_priv(ndev);
4650 vif = ifp->vif;
4651
4652 brcmf_free_vif(vif);
4653 free_netdev(ndev);
4654 }
4655
4656 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4657 {
4658 u32 event = e->event_code;
4659 u32 status = e->status;
4660
4661 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4662 brcmf_dbg(CONN, "Processing set ssid\n");
4663 return true;
4664 }
4665
4666 return false;
4667 }
4668
4669 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4670 {
4671 u32 event = e->event_code;
4672 u16 flags = e->flags;
4673
4674 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4675 (event == BRCMF_E_DISASSOC_IND) ||
4676 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4677 brcmf_dbg(CONN, "Processing link down\n");
4678 return true;
4679 }
4680 return false;
4681 }
4682
4683 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4684 const struct brcmf_event_msg *e)
4685 {
4686 u32 event = e->event_code;
4687 u32 status = e->status;
4688
4689 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4690 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4691 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4692 return true;
4693 }
4694
4695 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4696 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4697 return true;
4698 }
4699
4700 return false;
4701 }
4702
4703 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4704 {
4705 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4706
4707 kfree(conn_info->req_ie);
4708 conn_info->req_ie = NULL;
4709 conn_info->req_ie_len = 0;
4710 kfree(conn_info->resp_ie);
4711 conn_info->resp_ie = NULL;
4712 conn_info->resp_ie_len = 0;
4713 }
4714
4715 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4716 struct brcmf_if *ifp)
4717 {
4718 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4719 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4720 u32 req_len;
4721 u32 resp_len;
4722 s32 err = 0;
4723
4724 brcmf_clear_assoc_ies(cfg);
4725
4726 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4727 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4728 if (err) {
4729 brcmf_err("could not get assoc info (%d)\n", err);
4730 return err;
4731 }
4732 assoc_info =
4733 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4734 req_len = le32_to_cpu(assoc_info->req_len);
4735 resp_len = le32_to_cpu(assoc_info->resp_len);
4736 if (req_len) {
4737 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4738 cfg->extra_buf,
4739 WL_ASSOC_INFO_MAX);
4740 if (err) {
4741 brcmf_err("could not get assoc req (%d)\n", err);
4742 return err;
4743 }
4744 conn_info->req_ie_len = req_len;
4745 conn_info->req_ie =
4746 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4747 GFP_KERNEL);
4748 } else {
4749 conn_info->req_ie_len = 0;
4750 conn_info->req_ie = NULL;
4751 }
4752 if (resp_len) {
4753 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4754 cfg->extra_buf,
4755 WL_ASSOC_INFO_MAX);
4756 if (err) {
4757 brcmf_err("could not get assoc resp (%d)\n", err);
4758 return err;
4759 }
4760 conn_info->resp_ie_len = resp_len;
4761 conn_info->resp_ie =
4762 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4763 GFP_KERNEL);
4764 } else {
4765 conn_info->resp_ie_len = 0;
4766 conn_info->resp_ie = NULL;
4767 }
4768 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4769 conn_info->req_ie_len, conn_info->resp_ie_len);
4770
4771 return err;
4772 }
4773
4774 static s32
4775 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4776 struct net_device *ndev,
4777 const struct brcmf_event_msg *e)
4778 {
4779 struct brcmf_if *ifp = netdev_priv(ndev);
4780 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4781 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4782 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4783 struct ieee80211_channel *notify_channel = NULL;
4784 struct ieee80211_supported_band *band;
4785 struct brcmf_bss_info_le *bi;
4786 struct brcmu_chan ch;
4787 u32 freq;
4788 s32 err = 0;
4789 u8 *buf;
4790
4791 brcmf_dbg(TRACE, "Enter\n");
4792
4793 brcmf_get_assoc_ies(cfg, ifp);
4794 memcpy(profile->bssid, e->addr, ETH_ALEN);
4795 brcmf_update_bss_info(cfg, ifp);
4796
4797 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4798 if (buf == NULL) {
4799 err = -ENOMEM;
4800 goto done;
4801 }
4802
4803 /* data sent to dongle has to be little endian */
4804 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4805 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4806 buf, WL_BSS_INFO_MAX);
4807
4808 if (err)
4809 goto done;
4810
4811 bi = (struct brcmf_bss_info_le *)(buf + 4);
4812 ch.chspec = le16_to_cpu(bi->chanspec);
4813 cfg->d11inf.decchspec(&ch);
4814
4815 if (ch.band == BRCMU_CHAN_BAND_2G)
4816 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4817 else
4818 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4819
4820 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4821 notify_channel = ieee80211_get_channel(wiphy, freq);
4822
4823 done:
4824 kfree(buf);
4825 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4826 conn_info->req_ie, conn_info->req_ie_len,
4827 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4828 brcmf_dbg(CONN, "Report roaming result\n");
4829
4830 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4831 brcmf_dbg(TRACE, "Exit\n");
4832 return err;
4833 }
4834
4835 static s32
4836 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4837 struct net_device *ndev, const struct brcmf_event_msg *e,
4838 bool completed)
4839 {
4840 struct brcmf_if *ifp = netdev_priv(ndev);
4841 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4842 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4843
4844 brcmf_dbg(TRACE, "Enter\n");
4845
4846 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4847 &ifp->vif->sme_state)) {
4848 if (completed) {
4849 brcmf_get_assoc_ies(cfg, ifp);
4850 memcpy(profile->bssid, e->addr, ETH_ALEN);
4851 brcmf_update_bss_info(cfg, ifp);
4852 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4853 &ifp->vif->sme_state);
4854 }
4855 cfg80211_connect_result(ndev,
4856 (u8 *)profile->bssid,
4857 conn_info->req_ie,
4858 conn_info->req_ie_len,
4859 conn_info->resp_ie,
4860 conn_info->resp_ie_len,
4861 completed ? WLAN_STATUS_SUCCESS :
4862 WLAN_STATUS_AUTH_TIMEOUT,
4863 GFP_KERNEL);
4864 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4865 completed ? "succeeded" : "failed");
4866 }
4867 brcmf_dbg(TRACE, "Exit\n");
4868 return 0;
4869 }
4870
4871 static s32
4872 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4873 struct net_device *ndev,
4874 const struct brcmf_event_msg *e, void *data)
4875 {
4876 struct brcmf_if *ifp = netdev_priv(ndev);
4877 static int generation;
4878 u32 event = e->event_code;
4879 u32 reason = e->reason;
4880 struct station_info sinfo;
4881
4882 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4883 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4884 ndev != cfg_to_ndev(cfg)) {
4885 brcmf_dbg(CONN, "AP mode link down\n");
4886 complete(&cfg->vif_disabled);
4887 if (ifp->vif->mbss)
4888 brcmf_remove_interface(ifp->drvr, ifp->bssidx);
4889 return 0;
4890 }
4891
4892 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4893 (reason == BRCMF_E_STATUS_SUCCESS)) {
4894 memset(&sinfo, 0, sizeof(sinfo));
4895 if (!data) {
4896 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4897 return -EINVAL;
4898 }
4899 sinfo.assoc_req_ies = data;
4900 sinfo.assoc_req_ies_len = e->datalen;
4901 generation++;
4902 sinfo.generation = generation;
4903 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4904 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4905 (event == BRCMF_E_DEAUTH_IND) ||
4906 (event == BRCMF_E_DEAUTH)) {
4907 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4908 }
4909 return 0;
4910 }
4911
4912 static s32
4913 brcmf_notify_connect_status(struct brcmf_if *ifp,
4914 const struct brcmf_event_msg *e, void *data)
4915 {
4916 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4917 struct net_device *ndev = ifp->ndev;
4918 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4919 struct ieee80211_channel *chan;
4920 s32 err = 0;
4921
4922 if ((e->event_code == BRCMF_E_DEAUTH) ||
4923 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4924 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4925 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4926 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4927 }
4928
4929 if (brcmf_is_apmode(ifp->vif)) {
4930 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4931 } else if (brcmf_is_linkup(e)) {
4932 brcmf_dbg(CONN, "Linkup\n");
4933 if (brcmf_is_ibssmode(ifp->vif)) {
4934 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4935 memcpy(profile->bssid, e->addr, ETH_ALEN);
4936 wl_inform_ibss(cfg, ndev, e->addr);
4937 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4938 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4939 &ifp->vif->sme_state);
4940 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4941 &ifp->vif->sme_state);
4942 } else
4943 brcmf_bss_connect_done(cfg, ndev, e, true);
4944 } else if (brcmf_is_linkdown(e)) {
4945 brcmf_dbg(CONN, "Linkdown\n");
4946 if (!brcmf_is_ibssmode(ifp->vif)) {
4947 brcmf_bss_connect_done(cfg, ndev, e, false);
4948 }
4949 brcmf_link_down(ifp->vif, brcmf_map_fw_linkdown_reason(e));
4950 brcmf_init_prof(ndev_to_prof(ndev));
4951 if (ndev != cfg_to_ndev(cfg))
4952 complete(&cfg->vif_disabled);
4953 } else if (brcmf_is_nonetwork(cfg, e)) {
4954 if (brcmf_is_ibssmode(ifp->vif))
4955 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4956 &ifp->vif->sme_state);
4957 else
4958 brcmf_bss_connect_done(cfg, ndev, e, false);
4959 }
4960
4961 return err;
4962 }
4963
4964 static s32
4965 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4966 const struct brcmf_event_msg *e, void *data)
4967 {
4968 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4969 u32 event = e->event_code;
4970 u32 status = e->status;
4971
4972 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4973 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4974 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4975 else
4976 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4977 }
4978
4979 return 0;
4980 }
4981
4982 static s32
4983 brcmf_notify_mic_status(struct brcmf_if *ifp,
4984 const struct brcmf_event_msg *e, void *data)
4985 {
4986 u16 flags = e->flags;
4987 enum nl80211_key_type key_type;
4988
4989 if (flags & BRCMF_EVENT_MSG_GROUP)
4990 key_type = NL80211_KEYTYPE_GROUP;
4991 else
4992 key_type = NL80211_KEYTYPE_PAIRWISE;
4993
4994 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4995 NULL, GFP_KERNEL);
4996
4997 return 0;
4998 }
4999
5000 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
5001 const struct brcmf_event_msg *e, void *data)
5002 {
5003 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5004 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
5005 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5006 struct brcmf_cfg80211_vif *vif;
5007
5008 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
5009 ifevent->action, ifevent->flags, ifevent->ifidx,
5010 ifevent->bssidx);
5011
5012 mutex_lock(&event->vif_event_lock);
5013 event->action = ifevent->action;
5014 vif = event->vif;
5015
5016 switch (ifevent->action) {
5017 case BRCMF_E_IF_ADD:
5018 /* waiting process may have timed out */
5019 if (!cfg->vif_event.vif) {
5020 mutex_unlock(&event->vif_event_lock);
5021 return -EBADF;
5022 }
5023
5024 ifp->vif = vif;
5025 vif->ifp = ifp;
5026 if (ifp->ndev) {
5027 vif->wdev.netdev = ifp->ndev;
5028 ifp->ndev->ieee80211_ptr = &vif->wdev;
5029 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
5030 }
5031 mutex_unlock(&event->vif_event_lock);
5032 wake_up(&event->vif_wq);
5033 return 0;
5034
5035 case BRCMF_E_IF_DEL:
5036 mutex_unlock(&event->vif_event_lock);
5037 /* event may not be upon user request */
5038 if (brcmf_cfg80211_vif_event_armed(cfg))
5039 wake_up(&event->vif_wq);
5040 return 0;
5041
5042 case BRCMF_E_IF_CHANGE:
5043 mutex_unlock(&event->vif_event_lock);
5044 wake_up(&event->vif_wq);
5045 return 0;
5046
5047 default:
5048 mutex_unlock(&event->vif_event_lock);
5049 break;
5050 }
5051 return -EINVAL;
5052 }
5053
5054 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
5055 {
5056 conf->frag_threshold = (u32)-1;
5057 conf->rts_threshold = (u32)-1;
5058 conf->retry_short = (u32)-1;
5059 conf->retry_long = (u32)-1;
5060 conf->tx_power = -1;
5061 }
5062
5063 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
5064 {
5065 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
5066 brcmf_notify_connect_status);
5067 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
5068 brcmf_notify_connect_status);
5069 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5070 brcmf_notify_connect_status);
5071 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5072 brcmf_notify_connect_status);
5073 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5074 brcmf_notify_connect_status);
5075 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5076 brcmf_notify_connect_status);
5077 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5078 brcmf_notify_roaming_status);
5079 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5080 brcmf_notify_mic_status);
5081 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5082 brcmf_notify_connect_status);
5083 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5084 brcmf_notify_sched_scan_results);
5085 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5086 brcmf_notify_vif_event);
5087 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5088 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5089 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5090 brcmf_p2p_notify_listen_complete);
5091 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5092 brcmf_p2p_notify_action_frame_rx);
5093 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5094 brcmf_p2p_notify_action_tx_complete);
5095 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5096 brcmf_p2p_notify_action_tx_complete);
5097 }
5098
5099 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5100 {
5101 kfree(cfg->conf);
5102 cfg->conf = NULL;
5103 kfree(cfg->escan_ioctl_buf);
5104 cfg->escan_ioctl_buf = NULL;
5105 kfree(cfg->extra_buf);
5106 cfg->extra_buf = NULL;
5107 kfree(cfg->pmk_list);
5108 cfg->pmk_list = NULL;
5109 }
5110
5111 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5112 {
5113 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5114 if (!cfg->conf)
5115 goto init_priv_mem_out;
5116 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5117 if (!cfg->escan_ioctl_buf)
5118 goto init_priv_mem_out;
5119 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5120 if (!cfg->extra_buf)
5121 goto init_priv_mem_out;
5122 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
5123 if (!cfg->pmk_list)
5124 goto init_priv_mem_out;
5125
5126 return 0;
5127
5128 init_priv_mem_out:
5129 brcmf_deinit_priv_mem(cfg);
5130
5131 return -ENOMEM;
5132 }
5133
5134 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5135 {
5136 s32 err = 0;
5137
5138 cfg->scan_request = NULL;
5139 cfg->pwr_save = true;
5140 cfg->active_scan = true; /* we do active scan per default */
5141 cfg->dongle_up = false; /* dongle is not up yet */
5142 err = brcmf_init_priv_mem(cfg);
5143 if (err)
5144 return err;
5145 brcmf_register_event_handlers(cfg);
5146 mutex_init(&cfg->usr_sync);
5147 brcmf_init_escan(cfg);
5148 brcmf_init_conf(cfg->conf);
5149 init_completion(&cfg->vif_disabled);
5150 return err;
5151 }
5152
5153 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5154 {
5155 cfg->dongle_up = false; /* dongle down */
5156 brcmf_abort_scanning(cfg);
5157 brcmf_deinit_priv_mem(cfg);
5158 }
5159
5160 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5161 {
5162 init_waitqueue_head(&event->vif_wq);
5163 mutex_init(&event->vif_event_lock);
5164 }
5165
5166 static s32
5167 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
5168 {
5169 s32 err = 0;
5170 __le32 roamtrigger[2];
5171 __le32 roam_delta[2];
5172
5173 /*
5174 * Setup timeout if Beacons are lost and roam is
5175 * off to report link down
5176 */
5177 if (brcmf_roamoff) {
5178 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5179 if (err) {
5180 brcmf_err("bcn_timeout error (%d)\n", err);
5181 goto dongle_rom_out;
5182 }
5183 }
5184
5185 /*
5186 * Enable/Disable built-in roaming to allow supplicant
5187 * to take care of roaming
5188 */
5189 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5190 brcmf_roamoff ? "Off" : "On");
5191 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
5192 if (err) {
5193 brcmf_err("roam_off error (%d)\n", err);
5194 goto dongle_rom_out;
5195 }
5196
5197 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5198 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5199 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5200 (void *)roamtrigger, sizeof(roamtrigger));
5201 if (err) {
5202 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5203 goto dongle_rom_out;
5204 }
5205
5206 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5207 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5208 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5209 (void *)roam_delta, sizeof(roam_delta));
5210 if (err) {
5211 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5212 goto dongle_rom_out;
5213 }
5214
5215 dongle_rom_out:
5216 return err;
5217 }
5218
5219 static s32
5220 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5221 s32 scan_unassoc_time, s32 scan_passive_time)
5222 {
5223 s32 err = 0;
5224
5225 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5226 scan_assoc_time);
5227 if (err) {
5228 if (err == -EOPNOTSUPP)
5229 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5230 else
5231 brcmf_err("Scan assoc time error (%d)\n", err);
5232 goto dongle_scantime_out;
5233 }
5234 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5235 scan_unassoc_time);
5236 if (err) {
5237 if (err == -EOPNOTSUPP)
5238 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5239 else
5240 brcmf_err("Scan unassoc time error (%d)\n", err);
5241 goto dongle_scantime_out;
5242 }
5243
5244 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5245 scan_passive_time);
5246 if (err) {
5247 if (err == -EOPNOTSUPP)
5248 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5249 else
5250 brcmf_err("Scan passive time error (%d)\n", err);
5251 goto dongle_scantime_out;
5252 }
5253
5254 dongle_scantime_out:
5255 return err;
5256 }
5257
5258 /* Filter the list of channels received from firmware counting only
5259 * the 20MHz channels. The wiphy band data only needs those which get
5260 * flagged to indicate if they can take part in higher bandwidth.
5261 */
5262 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5263 struct brcmf_chanspec_list *chlist,
5264 u32 chcnt[])
5265 {
5266 u32 total = le32_to_cpu(chlist->count);
5267 struct brcmu_chan ch;
5268 int i;
5269
5270 for (i = 0; i < total; i++) {
5271 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5272 cfg->d11inf.decchspec(&ch);
5273
5274 /* Firmware gives a ordered list. We skip non-20MHz
5275 * channels is 2G. For 5G we can abort upon reaching
5276 * a non-20MHz channel in the list.
5277 */
5278 if (ch.bw != BRCMU_CHAN_BW_20) {
5279 if (ch.band == BRCMU_CHAN_BAND_5G)
5280 break;
5281 else
5282 continue;
5283 }
5284
5285 if (ch.band == BRCMU_CHAN_BAND_2G)
5286 chcnt[0] += 1;
5287 else if (ch.band == BRCMU_CHAN_BAND_5G)
5288 chcnt[1] += 1;
5289 }
5290 }
5291
5292 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5293 struct brcmu_chan *ch)
5294 {
5295 u32 ht40_flag;
5296
5297 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5298 if (ch->sb == BRCMU_CHAN_SB_U) {
5299 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5300 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5301 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5302 } else {
5303 /* It should be one of
5304 * IEEE80211_CHAN_NO_HT40 or
5305 * IEEE80211_CHAN_NO_HT40PLUS
5306 */
5307 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5308 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5309 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5310 }
5311 }
5312
5313 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5314 u32 bw_cap[])
5315 {
5316 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5317 struct ieee80211_supported_band *band;
5318 struct ieee80211_channel *channel;
5319 struct wiphy *wiphy;
5320 struct brcmf_chanspec_list *list;
5321 struct brcmu_chan ch;
5322 int err;
5323 u8 *pbuf;
5324 u32 i, j;
5325 u32 total;
5326 u32 chaninfo;
5327 u32 chcnt[2] = { 0, 0 };
5328 u32 index;
5329
5330 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5331
5332 if (pbuf == NULL)
5333 return -ENOMEM;
5334
5335 list = (struct brcmf_chanspec_list *)pbuf;
5336
5337 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5338 BRCMF_DCMD_MEDLEN);
5339 if (err) {
5340 brcmf_err("get chanspecs error (%d)\n", err);
5341 goto fail_pbuf;
5342 }
5343
5344 brcmf_count_20mhz_channels(cfg, list, chcnt);
5345 wiphy = cfg_to_wiphy(cfg);
5346 if (chcnt[0]) {
5347 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5348 GFP_KERNEL);
5349 if (band == NULL) {
5350 err = -ENOMEM;
5351 goto fail_pbuf;
5352 }
5353 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5354 GFP_KERNEL);
5355 if (band->channels == NULL) {
5356 kfree(band);
5357 err = -ENOMEM;
5358 goto fail_pbuf;
5359 }
5360 band->n_channels = 0;
5361 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5362 }
5363 if (chcnt[1]) {
5364 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5365 GFP_KERNEL);
5366 if (band == NULL) {
5367 err = -ENOMEM;
5368 goto fail_band2g;
5369 }
5370 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5371 GFP_KERNEL);
5372 if (band->channels == NULL) {
5373 kfree(band);
5374 err = -ENOMEM;
5375 goto fail_band2g;
5376 }
5377 band->n_channels = 0;
5378 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5379 }
5380
5381 total = le32_to_cpu(list->count);
5382 for (i = 0; i < total; i++) {
5383 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5384 cfg->d11inf.decchspec(&ch);
5385
5386 if (ch.band == BRCMU_CHAN_BAND_2G) {
5387 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5388 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5389 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5390 } else {
5391 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5392 continue;
5393 }
5394 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5395 ch.bw == BRCMU_CHAN_BW_40)
5396 continue;
5397 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5398 ch.bw == BRCMU_CHAN_BW_80)
5399 continue;
5400
5401 channel = band->channels;
5402 index = band->n_channels;
5403 for (j = 0; j < band->n_channels; j++) {
5404 if (channel[j].hw_value == ch.chnum) {
5405 index = j;
5406 break;
5407 }
5408 }
5409 channel[index].center_freq =
5410 ieee80211_channel_to_frequency(ch.chnum, band->band);
5411 channel[index].hw_value = ch.chnum;
5412
5413 /* assuming the chanspecs order is HT20,
5414 * HT40 upper, HT40 lower, and VHT80.
5415 */
5416 if (ch.bw == BRCMU_CHAN_BW_80) {
5417 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5418 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5419 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5420 } else {
5421 /* disable other bandwidths for now as mentioned
5422 * order assure they are enabled for subsequent
5423 * chanspecs.
5424 */
5425 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5426 IEEE80211_CHAN_NO_80MHZ;
5427 ch.bw = BRCMU_CHAN_BW_20;
5428 cfg->d11inf.encchspec(&ch);
5429 chaninfo = ch.chspec;
5430 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5431 &chaninfo);
5432 if (!err) {
5433 if (chaninfo & WL_CHAN_RADAR)
5434 channel[index].flags |=
5435 (IEEE80211_CHAN_RADAR |
5436 IEEE80211_CHAN_NO_IR);
5437 if (chaninfo & WL_CHAN_PASSIVE)
5438 channel[index].flags |=
5439 IEEE80211_CHAN_NO_IR;
5440 }
5441 }
5442 if (index == band->n_channels)
5443 band->n_channels++;
5444 }
5445 kfree(pbuf);
5446 return 0;
5447
5448 fail_band2g:
5449 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5450 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5451 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5452 fail_pbuf:
5453 kfree(pbuf);
5454 return err;
5455 }
5456
5457 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5458 {
5459 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5460 struct ieee80211_supported_band *band;
5461 struct brcmf_fil_bwcap_le band_bwcap;
5462 struct brcmf_chanspec_list *list;
5463 u8 *pbuf;
5464 u32 val;
5465 int err;
5466 struct brcmu_chan ch;
5467 u32 num_chan;
5468 int i, j;
5469
5470 /* verify support for bw_cap command */
5471 val = WLC_BAND_5G;
5472 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5473
5474 if (!err) {
5475 /* only set 2G bandwidth using bw_cap command */
5476 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5477 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5478 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5479 sizeof(band_bwcap));
5480 } else {
5481 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5482 val = WLC_N_BW_40ALL;
5483 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5484 }
5485
5486 if (!err) {
5487 /* update channel info in 2G band */
5488 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5489
5490 if (pbuf == NULL)
5491 return -ENOMEM;
5492
5493 ch.band = BRCMU_CHAN_BAND_2G;
5494 ch.bw = BRCMU_CHAN_BW_40;
5495 ch.sb = BRCMU_CHAN_SB_NONE;
5496 ch.chnum = 0;
5497 cfg->d11inf.encchspec(&ch);
5498
5499 /* pass encoded chanspec in query */
5500 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5501
5502 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5503 BRCMF_DCMD_MEDLEN);
5504 if (err) {
5505 brcmf_err("get chanspecs error (%d)\n", err);
5506 kfree(pbuf);
5507 return err;
5508 }
5509
5510 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5511 list = (struct brcmf_chanspec_list *)pbuf;
5512 num_chan = le32_to_cpu(list->count);
5513 for (i = 0; i < num_chan; i++) {
5514 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5515 cfg->d11inf.decchspec(&ch);
5516 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5517 continue;
5518 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5519 continue;
5520 for (j = 0; j < band->n_channels; j++) {
5521 if (band->channels[j].hw_value == ch.chnum)
5522 break;
5523 }
5524 if (WARN_ON(j == band->n_channels))
5525 continue;
5526
5527 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5528 }
5529 kfree(pbuf);
5530 }
5531 return err;
5532 }
5533
5534 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5535 {
5536 u32 band, mimo_bwcap;
5537 int err;
5538
5539 band = WLC_BAND_2G;
5540 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5541 if (!err) {
5542 bw_cap[IEEE80211_BAND_2GHZ] = band;
5543 band = WLC_BAND_5G;
5544 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5545 if (!err) {
5546 bw_cap[IEEE80211_BAND_5GHZ] = band;
5547 return;
5548 }
5549 WARN_ON(1);
5550 return;
5551 }
5552 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5553 mimo_bwcap = 0;
5554 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5555 if (err)
5556 /* assume 20MHz if firmware does not give a clue */
5557 mimo_bwcap = WLC_N_BW_20ALL;
5558
5559 switch (mimo_bwcap) {
5560 case WLC_N_BW_40ALL:
5561 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5562 /* fall-thru */
5563 case WLC_N_BW_20IN2G_40IN5G:
5564 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5565 /* fall-thru */
5566 case WLC_N_BW_20ALL:
5567 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5568 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5569 break;
5570 default:
5571 brcmf_err("invalid mimo_bw_cap value\n");
5572 }
5573 }
5574
5575 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5576 u32 bw_cap[2], u32 nchain)
5577 {
5578 band->ht_cap.ht_supported = true;
5579 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5580 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5581 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5582 }
5583 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5584 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5585 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5586 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5587 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5588 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5589 }
5590
5591 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5592 {
5593 u16 mcs_map;
5594 int i;
5595
5596 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5597 mcs_map = (mcs_map << 2) | supp;
5598
5599 return cpu_to_le16(mcs_map);
5600 }
5601
5602 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5603 u32 bw_cap[2], u32 nchain)
5604 {
5605 __le16 mcs_map;
5606
5607 /* not allowed in 2.4G band */
5608 if (band->band == IEEE80211_BAND_2GHZ)
5609 return;
5610
5611 band->vht_cap.vht_supported = true;
5612 /* 80MHz is mandatory */
5613 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5614 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5615 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5616 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5617 }
5618 /* all support 256-QAM */
5619 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5620 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5621 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5622 }
5623
5624 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5625 {
5626 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5627 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5628 u32 nmode = 0;
5629 u32 vhtmode = 0;
5630 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5631 u32 rxchain;
5632 u32 nchain;
5633 int err;
5634 s32 i;
5635 struct ieee80211_supported_band *band;
5636
5637 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5638 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5639 if (err) {
5640 brcmf_err("nmode error (%d)\n", err);
5641 } else {
5642 brcmf_get_bwcap(ifp, bw_cap);
5643 }
5644 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5645 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5646 bw_cap[IEEE80211_BAND_5GHZ]);
5647
5648 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5649 if (err) {
5650 brcmf_err("rxchain error (%d)\n", err);
5651 nchain = 1;
5652 } else {
5653 for (nchain = 0; rxchain; nchain++)
5654 rxchain = rxchain & (rxchain - 1);
5655 }
5656 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5657
5658 err = brcmf_construct_chaninfo(cfg, bw_cap);
5659 if (err) {
5660 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5661 return err;
5662 }
5663
5664 wiphy = cfg_to_wiphy(cfg);
5665 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5666 band = wiphy->bands[i];
5667 if (band == NULL)
5668 continue;
5669
5670 if (nmode)
5671 brcmf_update_ht_cap(band, bw_cap, nchain);
5672 if (vhtmode)
5673 brcmf_update_vht_cap(band, bw_cap, nchain);
5674 }
5675
5676 return 0;
5677 }
5678
5679 static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
5680 {
5681 .max = 1,
5682 .types = BIT(NL80211_IFTYPE_STATION) |
5683 BIT(NL80211_IFTYPE_ADHOC)
5684 },
5685 {
5686 .max = 4,
5687 .types = BIT(NL80211_IFTYPE_AP)
5688 },
5689 {
5690 .max = 1,
5691 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5692 BIT(NL80211_IFTYPE_P2P_GO)
5693 },
5694 {
5695 .max = 1,
5696 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5697 }
5698 };
5699
5700 static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
5701 {
5702 .max = 2,
5703 .types = BIT(NL80211_IFTYPE_STATION) |
5704 BIT(NL80211_IFTYPE_ADHOC) |
5705 BIT(NL80211_IFTYPE_AP)
5706 },
5707 {
5708 .max = 1,
5709 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5710 BIT(NL80211_IFTYPE_P2P_GO)
5711 },
5712 {
5713 .max = 1,
5714 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5715 }
5716 };
5717 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5718 {
5719 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5720 .num_different_channels = 1,
5721 .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
5722 .limits = brcmf_iface_limits_sbss,
5723 }
5724 };
5725
5726 static const struct ieee80211_txrx_stypes
5727 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5728 [NL80211_IFTYPE_STATION] = {
5729 .tx = 0xffff,
5730 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5731 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5732 },
5733 [NL80211_IFTYPE_P2P_CLIENT] = {
5734 .tx = 0xffff,
5735 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5736 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5737 },
5738 [NL80211_IFTYPE_P2P_GO] = {
5739 .tx = 0xffff,
5740 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5741 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5742 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5743 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5744 BIT(IEEE80211_STYPE_AUTH >> 4) |
5745 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5746 BIT(IEEE80211_STYPE_ACTION >> 4)
5747 },
5748 [NL80211_IFTYPE_P2P_DEVICE] = {
5749 .tx = 0xffff,
5750 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5751 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5752 }
5753 };
5754
5755 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5756 {
5757 /* scheduled scan settings */
5758 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5759 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5760 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5761 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5762 }
5763
5764 #ifdef CONFIG_PM
5765 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5766 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5767 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5768 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5769 .pattern_min_len = 1,
5770 .max_pkt_offset = 1500,
5771 };
5772 #endif
5773
5774 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5775 {
5776 #ifdef CONFIG_PM
5777 /* wowl settings */
5778 wiphy->wowlan = &brcmf_wowlan_support;
5779 #endif
5780 }
5781
5782 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5783 {
5784 struct ieee80211_iface_combination ifc_combo;
5785 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5786 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5787 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5788 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5789 BIT(NL80211_IFTYPE_ADHOC) |
5790 BIT(NL80211_IFTYPE_AP) |
5791 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5792 BIT(NL80211_IFTYPE_P2P_GO) |
5793 BIT(NL80211_IFTYPE_P2P_DEVICE);
5794 /* need VSDB firmware feature for concurrent channels */
5795 ifc_combo = brcmf_iface_combos[0];
5796 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5797 ifc_combo.num_different_channels = 2;
5798 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
5799 ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
5800 ifc_combo.limits = brcmf_iface_limits_mbss;
5801 }
5802 wiphy->iface_combinations = kmemdup(&ifc_combo,
5803 sizeof(ifc_combo),
5804 GFP_KERNEL);
5805 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5806 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5807 wiphy->cipher_suites = __wl_cipher_suites;
5808 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5809 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5810 WIPHY_FLAG_OFFCHAN_TX |
5811 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5812 WIPHY_FLAG_SUPPORTS_TDLS;
5813 if (!brcmf_roamoff)
5814 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5815 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5816 wiphy->max_remain_on_channel_duration = 5000;
5817 brcmf_wiphy_pno_params(wiphy);
5818
5819 /* vendor commands/events support */
5820 wiphy->vendor_commands = brcmf_vendor_cmds;
5821 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5822
5823 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5824 brcmf_wiphy_wowl_params(wiphy);
5825
5826 return brcmf_setup_wiphybands(wiphy);
5827 }
5828
5829 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5830 {
5831 struct net_device *ndev;
5832 struct wireless_dev *wdev;
5833 struct brcmf_if *ifp;
5834 s32 power_mode;
5835 s32 err = 0;
5836
5837 if (cfg->dongle_up)
5838 return err;
5839
5840 ndev = cfg_to_ndev(cfg);
5841 wdev = ndev->ieee80211_ptr;
5842 ifp = netdev_priv(ndev);
5843
5844 /* make sure RF is ready for work */
5845 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5846
5847 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5848 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5849
5850 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5851 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5852 if (err)
5853 goto default_conf_out;
5854 brcmf_dbg(INFO, "power save set to %s\n",
5855 (power_mode ? "enabled" : "disabled"));
5856
5857 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5858 if (err)
5859 goto default_conf_out;
5860 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5861 NULL, NULL);
5862 if (err)
5863 goto default_conf_out;
5864
5865 brcmf_configure_arp_offload(ifp, true);
5866
5867 cfg->dongle_up = true;
5868 default_conf_out:
5869
5870 return err;
5871
5872 }
5873
5874 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5875 {
5876 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5877
5878 return brcmf_config_dongle(ifp->drvr->config);
5879 }
5880
5881 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5882 {
5883 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5884
5885 /*
5886 * While going down, if associated with AP disassociate
5887 * from AP to save power
5888 */
5889 if (check_vif_up(ifp->vif)) {
5890 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED);
5891
5892 /* Make sure WPA_Supplicant receives all the event
5893 generated due to DISASSOC call to the fw to keep
5894 the state fw and WPA_Supplicant state consistent
5895 */
5896 brcmf_delay(500);
5897 }
5898
5899 brcmf_abort_scanning(cfg);
5900 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5901
5902 return 0;
5903 }
5904
5905 s32 brcmf_cfg80211_up(struct net_device *ndev)
5906 {
5907 struct brcmf_if *ifp = netdev_priv(ndev);
5908 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5909 s32 err = 0;
5910
5911 mutex_lock(&cfg->usr_sync);
5912 err = __brcmf_cfg80211_up(ifp);
5913 mutex_unlock(&cfg->usr_sync);
5914
5915 return err;
5916 }
5917
5918 s32 brcmf_cfg80211_down(struct net_device *ndev)
5919 {
5920 struct brcmf_if *ifp = netdev_priv(ndev);
5921 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5922 s32 err = 0;
5923
5924 mutex_lock(&cfg->usr_sync);
5925 err = __brcmf_cfg80211_down(ifp);
5926 mutex_unlock(&cfg->usr_sync);
5927
5928 return err;
5929 }
5930
5931 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5932 {
5933 struct wireless_dev *wdev = &ifp->vif->wdev;
5934
5935 return wdev->iftype;
5936 }
5937
5938 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5939 unsigned long state)
5940 {
5941 struct brcmf_cfg80211_vif *vif;
5942
5943 list_for_each_entry(vif, &cfg->vif_list, list) {
5944 if (test_bit(state, &vif->sme_state))
5945 return true;
5946 }
5947 return false;
5948 }
5949
5950 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5951 u8 action)
5952 {
5953 u8 evt_action;
5954
5955 mutex_lock(&event->vif_event_lock);
5956 evt_action = event->action;
5957 mutex_unlock(&event->vif_event_lock);
5958 return evt_action == action;
5959 }
5960
5961 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5962 struct brcmf_cfg80211_vif *vif)
5963 {
5964 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5965
5966 mutex_lock(&event->vif_event_lock);
5967 event->vif = vif;
5968 event->action = 0;
5969 mutex_unlock(&event->vif_event_lock);
5970 }
5971
5972 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5973 {
5974 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5975 bool armed;
5976
5977 mutex_lock(&event->vif_event_lock);
5978 armed = event->vif != NULL;
5979 mutex_unlock(&event->vif_event_lock);
5980
5981 return armed;
5982 }
5983 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5984 u8 action, ulong timeout)
5985 {
5986 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5987
5988 return wait_event_timeout(event->vif_wq,
5989 vif_event_equals(event, action), timeout);
5990 }
5991
5992 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
5993 struct regulatory_request *req)
5994 {
5995 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5996 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5997 struct brcmf_fil_country_le ccreq;
5998 int i;
5999
6000 brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator,
6001 req->alpha2[0], req->alpha2[1]);
6002
6003 /* ignore non-ISO3166 country codes */
6004 for (i = 0; i < sizeof(req->alpha2); i++)
6005 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
6006 brcmf_err("not a ISO3166 code\n");
6007 return;
6008 }
6009 memset(&ccreq, 0, sizeof(ccreq));
6010 ccreq.rev = cpu_to_le32(-1);
6011 memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2));
6012 brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
6013 }
6014
6015 static void brcmf_free_wiphy(struct wiphy *wiphy)
6016 {
6017 kfree(wiphy->iface_combinations);
6018 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6019 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
6020 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
6021 }
6022 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
6023 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
6024 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
6025 }
6026 wiphy_free(wiphy);
6027 }
6028
6029 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
6030 struct device *busdev)
6031 {
6032 struct net_device *ndev = drvr->iflist[0]->ndev;
6033 struct brcmf_cfg80211_info *cfg;
6034 struct wiphy *wiphy;
6035 struct brcmf_cfg80211_vif *vif;
6036 struct brcmf_if *ifp;
6037 s32 err = 0;
6038 s32 io_type;
6039 u16 *cap = NULL;
6040
6041 if (!ndev) {
6042 brcmf_err("ndev is invalid\n");
6043 return NULL;
6044 }
6045
6046 ifp = netdev_priv(ndev);
6047 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
6048 if (!wiphy) {
6049 brcmf_err("Could not allocate wiphy device\n");
6050 return NULL;
6051 }
6052 set_wiphy_dev(wiphy, busdev);
6053
6054 cfg = wiphy_priv(wiphy);
6055 cfg->wiphy = wiphy;
6056 cfg->pub = drvr;
6057 init_vif_event(&cfg->vif_event);
6058 INIT_LIST_HEAD(&cfg->vif_list);
6059
6060 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
6061 if (IS_ERR(vif))
6062 goto wiphy_out;
6063
6064 vif->ifp = ifp;
6065 vif->wdev.netdev = ndev;
6066 ndev->ieee80211_ptr = &vif->wdev;
6067 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
6068
6069 err = wl_init_priv(cfg);
6070 if (err) {
6071 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6072 brcmf_free_vif(vif);
6073 goto wiphy_out;
6074 }
6075 ifp->vif = vif;
6076
6077 /* determine d11 io type before wiphy setup */
6078 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6079 if (err) {
6080 brcmf_err("Failed to get D11 version (%d)\n", err);
6081 goto priv_out;
6082 }
6083 cfg->d11inf.io_type = (u8)io_type;
6084 brcmu_d11_attach(&cfg->d11inf);
6085
6086 err = brcmf_setup_wiphy(wiphy, ifp);
6087 if (err < 0)
6088 goto priv_out;
6089
6090 brcmf_dbg(INFO, "Registering custom regulatory\n");
6091 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6092 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6093 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6094
6095 /* firmware defaults to 40MHz disabled in 2G band. We signal
6096 * cfg80211 here that we do and have it decide we can enable
6097 * it. But first check if device does support 2G operation.
6098 */
6099 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6100 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
6101 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6102 }
6103 err = wiphy_register(wiphy);
6104 if (err < 0) {
6105 brcmf_err("Could not register wiphy device (%d)\n", err);
6106 goto priv_out;
6107 }
6108
6109 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6110 * setup 40MHz in 2GHz band and enable OBSS scanning.
6111 */
6112 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6113 err = brcmf_enable_bw40_2g(cfg);
6114 if (!err)
6115 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6116 BRCMF_OBSS_COEX_AUTO);
6117 else
6118 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6119 }
6120
6121 err = brcmf_p2p_attach(cfg);
6122 if (err) {
6123 brcmf_err("P2P initilisation failed (%d)\n", err);
6124 goto wiphy_unreg_out;
6125 }
6126 err = brcmf_btcoex_attach(cfg);
6127 if (err) {
6128 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6129 brcmf_p2p_detach(&cfg->p2p);
6130 goto wiphy_unreg_out;
6131 }
6132
6133 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
6134 if (err) {
6135 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
6136 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6137 } else {
6138 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6139 brcmf_notify_tdls_peer_event);
6140 }
6141
6142 return cfg;
6143
6144 wiphy_unreg_out:
6145 wiphy_unregister(cfg->wiphy);
6146 priv_out:
6147 wl_deinit_priv(cfg);
6148 brcmf_free_vif(vif);
6149 wiphy_out:
6150 brcmf_free_wiphy(wiphy);
6151 return NULL;
6152 }
6153
6154 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
6155 {
6156 if (!cfg)
6157 return;
6158
6159 WARN_ON(!list_empty(&cfg->vif_list));
6160 wiphy_unregister(cfg->wiphy);
6161 brcmf_btcoex_detach(cfg);
6162 brcmf_p2p_detach(&cfg->p2p);
6163 wl_deinit_priv(cfg);
6164 brcmf_free_wiphy(cfg->wiphy);
6165 }
Linux kernel - Deliverables
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