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cfg80211: pass name_assign_type to rdev_add_virtual_intf()
[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 unsigned char name_assign_type,
629 enum nl80211_iftype type,
630 u32 *flags,
631 struct vif_params *params)
632 {
633 struct wireless_dev *wdev;
634
635 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
636 switch (type) {
637 case NL80211_IFTYPE_ADHOC:
638 case NL80211_IFTYPE_STATION:
639 case NL80211_IFTYPE_AP_VLAN:
640 case NL80211_IFTYPE_WDS:
641 case NL80211_IFTYPE_MONITOR:
642 case NL80211_IFTYPE_MESH_POINT:
643 return ERR_PTR(-EOPNOTSUPP);
644 case NL80211_IFTYPE_AP:
645 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
646 if (!IS_ERR(wdev))
647 brcmf_cfg80211_update_proto_addr_mode(wdev);
648 return wdev;
649 case NL80211_IFTYPE_P2P_CLIENT:
650 case NL80211_IFTYPE_P2P_GO:
651 case NL80211_IFTYPE_P2P_DEVICE:
652 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params);
653 if (!IS_ERR(wdev))
654 brcmf_cfg80211_update_proto_addr_mode(wdev);
655 return wdev;
656 case NL80211_IFTYPE_UNSPECIFIED:
657 default:
658 return ERR_PTR(-EINVAL);
659 }
660 }
661
662 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
663 {
664 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
665 brcmf_set_mpc(ifp, mpc);
666 }
667
668 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
669 {
670 s32 err = 0;
671
672 if (check_vif_up(ifp->vif)) {
673 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
674 if (err) {
675 brcmf_err("fail to set mpc\n");
676 return;
677 }
678 brcmf_dbg(INFO, "MPC : %d\n", mpc);
679 }
680 }
681
682 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
683 struct brcmf_if *ifp, bool aborted,
684 bool fw_abort)
685 {
686 struct brcmf_scan_params_le params_le;
687 struct cfg80211_scan_request *scan_request;
688 s32 err = 0;
689
690 brcmf_dbg(SCAN, "Enter\n");
691
692 /* clear scan request, because the FW abort can cause a second call */
693 /* to this functon and might cause a double cfg80211_scan_done */
694 scan_request = cfg->scan_request;
695 cfg->scan_request = NULL;
696
697 if (timer_pending(&cfg->escan_timeout))
698 del_timer_sync(&cfg->escan_timeout);
699
700 if (fw_abort) {
701 /* Do a scan abort to stop the driver's scan engine */
702 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
703 memset(&params_le, 0, sizeof(params_le));
704 memset(params_le.bssid, 0xFF, ETH_ALEN);
705 params_le.bss_type = DOT11_BSSTYPE_ANY;
706 params_le.scan_type = 0;
707 params_le.channel_num = cpu_to_le32(1);
708 params_le.nprobes = cpu_to_le32(1);
709 params_le.active_time = cpu_to_le32(-1);
710 params_le.passive_time = cpu_to_le32(-1);
711 params_le.home_time = cpu_to_le32(-1);
712 /* Scan is aborted by setting channel_list[0] to -1 */
713 params_le.channel_list[0] = cpu_to_le16(-1);
714 /* E-Scan (or anyother type) can be aborted by SCAN */
715 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
716 &params_le, sizeof(params_le));
717 if (err)
718 brcmf_err("Scan abort failed\n");
719 }
720
721 brcmf_scan_config_mpc(ifp, 1);
722
723 /*
724 * e-scan can be initiated by scheduled scan
725 * which takes precedence.
726 */
727 if (cfg->sched_escan) {
728 brcmf_dbg(SCAN, "scheduled scan completed\n");
729 cfg->sched_escan = false;
730 if (!aborted)
731 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
732 } else if (scan_request) {
733 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
734 aborted ? "Aborted" : "Done");
735 cfg80211_scan_done(scan_request, aborted);
736 }
737 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
738 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
739
740 return err;
741 }
742
743 static
744 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
745 {
746 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
747 struct net_device *ndev = wdev->netdev;
748
749 /* vif event pending in firmware */
750 if (brcmf_cfg80211_vif_event_armed(cfg))
751 return -EBUSY;
752
753 if (ndev) {
754 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
755 cfg->escan_info.ifp == netdev_priv(ndev))
756 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
757 true, true);
758
759 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
760 }
761
762 switch (wdev->iftype) {
763 case NL80211_IFTYPE_ADHOC:
764 case NL80211_IFTYPE_STATION:
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
767 case NL80211_IFTYPE_WDS:
768 case NL80211_IFTYPE_MONITOR:
769 case NL80211_IFTYPE_MESH_POINT:
770 return -EOPNOTSUPP;
771 case NL80211_IFTYPE_P2P_CLIENT:
772 case NL80211_IFTYPE_P2P_GO:
773 case NL80211_IFTYPE_P2P_DEVICE:
774 return brcmf_p2p_del_vif(wiphy, wdev);
775 case NL80211_IFTYPE_UNSPECIFIED:
776 default:
777 return -EINVAL;
778 }
779 return -EOPNOTSUPP;
780 }
781
782 static s32
783 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
784 enum nl80211_iftype type, u32 *flags,
785 struct vif_params *params)
786 {
787 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
788 struct brcmf_if *ifp = netdev_priv(ndev);
789 struct brcmf_cfg80211_vif *vif = ifp->vif;
790 s32 infra = 0;
791 s32 ap = 0;
792 s32 err = 0;
793
794 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
795
796 switch (type) {
797 case NL80211_IFTYPE_MONITOR:
798 case NL80211_IFTYPE_WDS:
799 brcmf_err("type (%d) : currently we do not support this type\n",
800 type);
801 return -EOPNOTSUPP;
802 case NL80211_IFTYPE_ADHOC:
803 infra = 0;
804 break;
805 case NL80211_IFTYPE_STATION:
806 /* Ignore change for p2p IF. Unclear why supplicant does this */
807 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
808 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
809 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
810 /* WAR: It is unexpected to get a change of VIF for P2P
811 * IF, but it happens. The request can not be handled
812 * but returning EPERM causes a crash. Returning 0
813 * without setting ieee80211_ptr->iftype causes trace
814 * (WARN_ON) but it works with wpa_supplicant
815 */
816 return 0;
817 }
818 infra = 1;
819 break;
820 case NL80211_IFTYPE_AP:
821 case NL80211_IFTYPE_P2P_GO:
822 ap = 1;
823 break;
824 default:
825 err = -EINVAL;
826 goto done;
827 }
828
829 if (ap) {
830 if (type == NL80211_IFTYPE_P2P_GO) {
831 brcmf_dbg(INFO, "IF Type = P2P GO\n");
832 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
833 }
834 if (!err) {
835 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
836 brcmf_dbg(INFO, "IF Type = AP\n");
837 }
838 } else {
839 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
840 if (err) {
841 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
842 err = -EAGAIN;
843 goto done;
844 }
845 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
846 "Adhoc" : "Infra");
847 }
848 ndev->ieee80211_ptr->iftype = type;
849
850 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
851
852 done:
853 brcmf_dbg(TRACE, "Exit\n");
854
855 return err;
856 }
857
858 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
859 struct brcmf_scan_params_le *params_le,
860 struct cfg80211_scan_request *request)
861 {
862 u32 n_ssids;
863 u32 n_channels;
864 s32 i;
865 s32 offset;
866 u16 chanspec;
867 char *ptr;
868 struct brcmf_ssid_le ssid_le;
869
870 memset(params_le->bssid, 0xFF, ETH_ALEN);
871 params_le->bss_type = DOT11_BSSTYPE_ANY;
872 params_le->scan_type = 0;
873 params_le->channel_num = 0;
874 params_le->nprobes = cpu_to_le32(-1);
875 params_le->active_time = cpu_to_le32(-1);
876 params_le->passive_time = cpu_to_le32(-1);
877 params_le->home_time = cpu_to_le32(-1);
878 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
879
880 /* if request is null exit so it will be all channel broadcast scan */
881 if (!request)
882 return;
883
884 n_ssids = request->n_ssids;
885 n_channels = request->n_channels;
886 /* Copy channel array if applicable */
887 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
888 n_channels);
889 if (n_channels > 0) {
890 for (i = 0; i < n_channels; i++) {
891 chanspec = channel_to_chanspec(&cfg->d11inf,
892 request->channels[i]);
893 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
894 request->channels[i]->hw_value, chanspec);
895 params_le->channel_list[i] = cpu_to_le16(chanspec);
896 }
897 } else {
898 brcmf_dbg(SCAN, "Scanning all channels\n");
899 }
900 /* Copy ssid array if applicable */
901 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
902 if (n_ssids > 0) {
903 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
904 n_channels * sizeof(u16);
905 offset = roundup(offset, sizeof(u32));
906 ptr = (char *)params_le + offset;
907 for (i = 0; i < n_ssids; i++) {
908 memset(&ssid_le, 0, sizeof(ssid_le));
909 ssid_le.SSID_len =
910 cpu_to_le32(request->ssids[i].ssid_len);
911 memcpy(ssid_le.SSID, request->ssids[i].ssid,
912 request->ssids[i].ssid_len);
913 if (!ssid_le.SSID_len)
914 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
915 else
916 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
917 i, ssid_le.SSID, ssid_le.SSID_len);
918 memcpy(ptr, &ssid_le, sizeof(ssid_le));
919 ptr += sizeof(ssid_le);
920 }
921 } else {
922 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
923 if ((request->ssids) && request->ssids->ssid_len) {
924 brcmf_dbg(SCAN, "SSID %s len=%d\n",
925 params_le->ssid_le.SSID,
926 request->ssids->ssid_len);
927 params_le->ssid_le.SSID_len =
928 cpu_to_le32(request->ssids->ssid_len);
929 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
930 request->ssids->ssid_len);
931 }
932 }
933 /* Adding mask to channel numbers */
934 params_le->channel_num =
935 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
936 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
937 }
938
939 static s32
940 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
941 struct cfg80211_scan_request *request, u16 action)
942 {
943 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
944 offsetof(struct brcmf_escan_params_le, params_le);
945 struct brcmf_escan_params_le *params;
946 s32 err = 0;
947
948 brcmf_dbg(SCAN, "E-SCAN START\n");
949
950 if (request != NULL) {
951 /* Allocate space for populating ssids in struct */
952 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
953
954 /* Allocate space for populating ssids in struct */
955 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
956 }
957
958 params = kzalloc(params_size, GFP_KERNEL);
959 if (!params) {
960 err = -ENOMEM;
961 goto exit;
962 }
963 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
964 brcmf_escan_prep(cfg, &params->params_le, request);
965 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
966 params->action = cpu_to_le16(action);
967 params->sync_id = cpu_to_le16(0x1234);
968
969 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
970 if (err) {
971 if (err == -EBUSY)
972 brcmf_dbg(INFO, "system busy : escan canceled\n");
973 else
974 brcmf_err("error (%d)\n", err);
975 }
976
977 kfree(params);
978 exit:
979 return err;
980 }
981
982 static s32
983 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
984 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
985 {
986 s32 err;
987 u32 passive_scan;
988 struct brcmf_scan_results *results;
989 struct escan_info *escan = &cfg->escan_info;
990
991 brcmf_dbg(SCAN, "Enter\n");
992 escan->ifp = ifp;
993 escan->wiphy = wiphy;
994 escan->escan_state = WL_ESCAN_STATE_SCANNING;
995 passive_scan = cfg->active_scan ? 0 : 1;
996 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
997 passive_scan);
998 if (err) {
999 brcmf_err("error (%d)\n", err);
1000 return err;
1001 }
1002 brcmf_scan_config_mpc(ifp, 0);
1003 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1004 results->version = 0;
1005 results->count = 0;
1006 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1007
1008 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
1009 if (err)
1010 brcmf_scan_config_mpc(ifp, 1);
1011 return err;
1012 }
1013
1014 static s32
1015 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1016 struct cfg80211_scan_request *request,
1017 struct cfg80211_ssid *this_ssid)
1018 {
1019 struct brcmf_if *ifp = vif->ifp;
1020 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1021 struct cfg80211_ssid *ssids;
1022 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
1023 u32 passive_scan;
1024 bool escan_req;
1025 bool spec_scan;
1026 s32 err;
1027 u32 SSID_len;
1028
1029 brcmf_dbg(SCAN, "START ESCAN\n");
1030
1031 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1032 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1033 return -EAGAIN;
1034 }
1035 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1036 brcmf_err("Scanning being aborted: status (%lu)\n",
1037 cfg->scan_status);
1038 return -EAGAIN;
1039 }
1040 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1041 brcmf_err("Scanning suppressed: status (%lu)\n",
1042 cfg->scan_status);
1043 return -EAGAIN;
1044 }
1045 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1046 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1047 return -EAGAIN;
1048 }
1049
1050 /* If scan req comes for p2p0, send it over primary I/F */
1051 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1052 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1053
1054 /* Arm scan timeout timer */
1055 mod_timer(&cfg->escan_timeout, jiffies +
1056 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1057
1058 escan_req = false;
1059 if (request) {
1060 /* scan bss */
1061 ssids = request->ssids;
1062 escan_req = true;
1063 } else {
1064 /* scan in ibss */
1065 /* we don't do escan in ibss */
1066 ssids = this_ssid;
1067 }
1068
1069 cfg->scan_request = request;
1070 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1071 if (escan_req) {
1072 cfg->escan_info.run = brcmf_run_escan;
1073 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1074 if (err)
1075 goto scan_out;
1076
1077 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1078 if (err)
1079 goto scan_out;
1080 } else {
1081 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1082 ssids->ssid, ssids->ssid_len);
1083 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
1084 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
1085 sr->ssid_le.SSID_len = cpu_to_le32(0);
1086 spec_scan = false;
1087 if (SSID_len) {
1088 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
1089 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
1090 spec_scan = true;
1091 } else
1092 brcmf_dbg(SCAN, "Broadcast scan\n");
1093
1094 passive_scan = cfg->active_scan ? 0 : 1;
1095 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1096 passive_scan);
1097 if (err) {
1098 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1099 goto scan_out;
1100 }
1101 brcmf_scan_config_mpc(ifp, 0);
1102 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1103 &sr->ssid_le, sizeof(sr->ssid_le));
1104 if (err) {
1105 if (err == -EBUSY)
1106 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1107 sr->ssid_le.SSID);
1108 else
1109 brcmf_err("WLC_SCAN error (%d)\n", err);
1110
1111 brcmf_scan_config_mpc(ifp, 1);
1112 goto scan_out;
1113 }
1114 }
1115
1116 return 0;
1117
1118 scan_out:
1119 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1120 if (timer_pending(&cfg->escan_timeout))
1121 del_timer_sync(&cfg->escan_timeout);
1122 cfg->scan_request = NULL;
1123 return err;
1124 }
1125
1126 static s32
1127 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1128 {
1129 struct brcmf_cfg80211_vif *vif;
1130 s32 err = 0;
1131
1132 brcmf_dbg(TRACE, "Enter\n");
1133 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1134 if (!check_vif_up(vif))
1135 return -EIO;
1136
1137 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1138
1139 if (err)
1140 brcmf_err("scan error (%d)\n", err);
1141
1142 brcmf_dbg(TRACE, "Exit\n");
1143 return err;
1144 }
1145
1146 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1147 {
1148 s32 err = 0;
1149
1150 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1151 rts_threshold);
1152 if (err)
1153 brcmf_err("Error (%d)\n", err);
1154
1155 return err;
1156 }
1157
1158 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1159 {
1160 s32 err = 0;
1161
1162 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1163 frag_threshold);
1164 if (err)
1165 brcmf_err("Error (%d)\n", err);
1166
1167 return err;
1168 }
1169
1170 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1171 {
1172 s32 err = 0;
1173 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1174
1175 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1176 if (err) {
1177 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1178 return err;
1179 }
1180 return err;
1181 }
1182
1183 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1184 {
1185 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1186 struct net_device *ndev = cfg_to_ndev(cfg);
1187 struct brcmf_if *ifp = netdev_priv(ndev);
1188 s32 err = 0;
1189
1190 brcmf_dbg(TRACE, "Enter\n");
1191 if (!check_vif_up(ifp->vif))
1192 return -EIO;
1193
1194 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1195 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1196 cfg->conf->rts_threshold = wiphy->rts_threshold;
1197 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1198 if (!err)
1199 goto done;
1200 }
1201 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1202 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1203 cfg->conf->frag_threshold = wiphy->frag_threshold;
1204 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1205 if (!err)
1206 goto done;
1207 }
1208 if (changed & WIPHY_PARAM_RETRY_LONG
1209 && (cfg->conf->retry_long != wiphy->retry_long)) {
1210 cfg->conf->retry_long = wiphy->retry_long;
1211 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1212 if (!err)
1213 goto done;
1214 }
1215 if (changed & WIPHY_PARAM_RETRY_SHORT
1216 && (cfg->conf->retry_short != wiphy->retry_short)) {
1217 cfg->conf->retry_short = wiphy->retry_short;
1218 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1219 if (!err)
1220 goto done;
1221 }
1222
1223 done:
1224 brcmf_dbg(TRACE, "Exit\n");
1225 return err;
1226 }
1227
1228 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1229 {
1230 memset(prof, 0, sizeof(*prof));
1231 }
1232
1233 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
1234 {
1235 u16 reason;
1236
1237 switch (e->event_code) {
1238 case BRCMF_E_DEAUTH:
1239 case BRCMF_E_DEAUTH_IND:
1240 case BRCMF_E_DISASSOC_IND:
1241 reason = e->reason;
1242 break;
1243 case BRCMF_E_LINK:
1244 default:
1245 reason = 0;
1246 break;
1247 }
1248 return reason;
1249 }
1250
1251 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
1252 {
1253 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1254 s32 err = 0;
1255
1256 brcmf_dbg(TRACE, "Enter\n");
1257
1258 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1259 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1260 err = brcmf_fil_cmd_data_set(vif->ifp,
1261 BRCMF_C_DISASSOC, NULL, 0);
1262 if (err) {
1263 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1264 }
1265 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1266 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
1267 GFP_KERNEL);
1268
1269 }
1270 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1271 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1272 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1273 brcmf_dbg(TRACE, "Exit\n");
1274 }
1275
1276 static s32
1277 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1278 struct cfg80211_ibss_params *params)
1279 {
1280 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1281 struct brcmf_if *ifp = netdev_priv(ndev);
1282 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1283 struct brcmf_join_params join_params;
1284 size_t join_params_size = 0;
1285 s32 err = 0;
1286 s32 wsec = 0;
1287 s32 bcnprd;
1288 u16 chanspec;
1289
1290 brcmf_dbg(TRACE, "Enter\n");
1291 if (!check_vif_up(ifp->vif))
1292 return -EIO;
1293
1294 if (params->ssid)
1295 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1296 else {
1297 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1298 return -EOPNOTSUPP;
1299 }
1300
1301 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1302
1303 if (params->bssid)
1304 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1305 else
1306 brcmf_dbg(CONN, "No BSSID specified\n");
1307
1308 if (params->chandef.chan)
1309 brcmf_dbg(CONN, "channel: %d\n",
1310 params->chandef.chan->center_freq);
1311 else
1312 brcmf_dbg(CONN, "no channel specified\n");
1313
1314 if (params->channel_fixed)
1315 brcmf_dbg(CONN, "fixed channel required\n");
1316 else
1317 brcmf_dbg(CONN, "no fixed channel required\n");
1318
1319 if (params->ie && params->ie_len)
1320 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1321 else
1322 brcmf_dbg(CONN, "no ie specified\n");
1323
1324 if (params->beacon_interval)
1325 brcmf_dbg(CONN, "beacon interval: %d\n",
1326 params->beacon_interval);
1327 else
1328 brcmf_dbg(CONN, "no beacon interval specified\n");
1329
1330 if (params->basic_rates)
1331 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1332 else
1333 brcmf_dbg(CONN, "no basic rates specified\n");
1334
1335 if (params->privacy)
1336 brcmf_dbg(CONN, "privacy required\n");
1337 else
1338 brcmf_dbg(CONN, "no privacy required\n");
1339
1340 /* Configure Privacy for starter */
1341 if (params->privacy)
1342 wsec |= WEP_ENABLED;
1343
1344 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1345 if (err) {
1346 brcmf_err("wsec failed (%d)\n", err);
1347 goto done;
1348 }
1349
1350 /* Configure Beacon Interval for starter */
1351 if (params->beacon_interval)
1352 bcnprd = params->beacon_interval;
1353 else
1354 bcnprd = 100;
1355
1356 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1357 if (err) {
1358 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1359 goto done;
1360 }
1361
1362 /* Configure required join parameter */
1363 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1364
1365 /* SSID */
1366 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1367 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1368 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1369 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1370 join_params_size = sizeof(join_params.ssid_le);
1371
1372 /* BSSID */
1373 if (params->bssid) {
1374 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1375 join_params_size = sizeof(join_params.ssid_le) +
1376 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1377 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1378 } else {
1379 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1380 memset(profile->bssid, 0, ETH_ALEN);
1381 }
1382
1383 /* Channel */
1384 if (params->chandef.chan) {
1385 u32 target_channel;
1386
1387 cfg->channel =
1388 ieee80211_frequency_to_channel(
1389 params->chandef.chan->center_freq);
1390 if (params->channel_fixed) {
1391 /* adding chanspec */
1392 chanspec = chandef_to_chanspec(&cfg->d11inf,
1393 &params->chandef);
1394 join_params.params_le.chanspec_list[0] =
1395 cpu_to_le16(chanspec);
1396 join_params.params_le.chanspec_num = cpu_to_le32(1);
1397 join_params_size += sizeof(join_params.params_le);
1398 }
1399
1400 /* set channel for starter */
1401 target_channel = cfg->channel;
1402 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1403 target_channel);
1404 if (err) {
1405 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1406 goto done;
1407 }
1408 } else
1409 cfg->channel = 0;
1410
1411 cfg->ibss_starter = false;
1412
1413
1414 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1415 &join_params, join_params_size);
1416 if (err) {
1417 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1418 goto done;
1419 }
1420
1421 done:
1422 if (err)
1423 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1424 brcmf_dbg(TRACE, "Exit\n");
1425 return err;
1426 }
1427
1428 static s32
1429 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1430 {
1431 struct brcmf_if *ifp = netdev_priv(ndev);
1432
1433 brcmf_dbg(TRACE, "Enter\n");
1434 if (!check_vif_up(ifp->vif))
1435 return -EIO;
1436
1437 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
1438
1439 brcmf_dbg(TRACE, "Exit\n");
1440
1441 return 0;
1442 }
1443
1444 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1445 struct cfg80211_connect_params *sme)
1446 {
1447 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1448 struct brcmf_cfg80211_security *sec;
1449 s32 val = 0;
1450 s32 err = 0;
1451
1452 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1453 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1454 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1455 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1456 else
1457 val = WPA_AUTH_DISABLED;
1458 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1459 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1460 if (err) {
1461 brcmf_err("set wpa_auth failed (%d)\n", err);
1462 return err;
1463 }
1464 sec = &profile->sec;
1465 sec->wpa_versions = sme->crypto.wpa_versions;
1466 return err;
1467 }
1468
1469 static s32 brcmf_set_auth_type(struct net_device *ndev,
1470 struct cfg80211_connect_params *sme)
1471 {
1472 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1473 struct brcmf_cfg80211_security *sec;
1474 s32 val = 0;
1475 s32 err = 0;
1476
1477 switch (sme->auth_type) {
1478 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1479 val = 0;
1480 brcmf_dbg(CONN, "open system\n");
1481 break;
1482 case NL80211_AUTHTYPE_SHARED_KEY:
1483 val = 1;
1484 brcmf_dbg(CONN, "shared key\n");
1485 break;
1486 case NL80211_AUTHTYPE_AUTOMATIC:
1487 val = 2;
1488 brcmf_dbg(CONN, "automatic\n");
1489 break;
1490 case NL80211_AUTHTYPE_NETWORK_EAP:
1491 brcmf_dbg(CONN, "network eap\n");
1492 default:
1493 val = 2;
1494 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1495 break;
1496 }
1497
1498 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1499 if (err) {
1500 brcmf_err("set auth failed (%d)\n", err);
1501 return err;
1502 }
1503 sec = &profile->sec;
1504 sec->auth_type = sme->auth_type;
1505 return err;
1506 }
1507
1508 static s32
1509 brcmf_set_wsec_mode(struct net_device *ndev,
1510 struct cfg80211_connect_params *sme, bool mfp)
1511 {
1512 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1513 struct brcmf_cfg80211_security *sec;
1514 s32 pval = 0;
1515 s32 gval = 0;
1516 s32 wsec;
1517 s32 err = 0;
1518
1519 if (sme->crypto.n_ciphers_pairwise) {
1520 switch (sme->crypto.ciphers_pairwise[0]) {
1521 case WLAN_CIPHER_SUITE_WEP40:
1522 case WLAN_CIPHER_SUITE_WEP104:
1523 pval = WEP_ENABLED;
1524 break;
1525 case WLAN_CIPHER_SUITE_TKIP:
1526 pval = TKIP_ENABLED;
1527 break;
1528 case WLAN_CIPHER_SUITE_CCMP:
1529 pval = AES_ENABLED;
1530 break;
1531 case WLAN_CIPHER_SUITE_AES_CMAC:
1532 pval = AES_ENABLED;
1533 break;
1534 default:
1535 brcmf_err("invalid cipher pairwise (%d)\n",
1536 sme->crypto.ciphers_pairwise[0]);
1537 return -EINVAL;
1538 }
1539 }
1540 if (sme->crypto.cipher_group) {
1541 switch (sme->crypto.cipher_group) {
1542 case WLAN_CIPHER_SUITE_WEP40:
1543 case WLAN_CIPHER_SUITE_WEP104:
1544 gval = WEP_ENABLED;
1545 break;
1546 case WLAN_CIPHER_SUITE_TKIP:
1547 gval = TKIP_ENABLED;
1548 break;
1549 case WLAN_CIPHER_SUITE_CCMP:
1550 gval = AES_ENABLED;
1551 break;
1552 case WLAN_CIPHER_SUITE_AES_CMAC:
1553 gval = AES_ENABLED;
1554 break;
1555 default:
1556 brcmf_err("invalid cipher group (%d)\n",
1557 sme->crypto.cipher_group);
1558 return -EINVAL;
1559 }
1560 }
1561
1562 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1563 /* In case of privacy, but no security and WPS then simulate */
1564 /* setting AES. WPS-2.0 allows no security */
1565 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1566 sme->privacy)
1567 pval = AES_ENABLED;
1568
1569 if (mfp)
1570 wsec = pval | gval | MFP_CAPABLE;
1571 else
1572 wsec = pval | gval;
1573 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1574 if (err) {
1575 brcmf_err("error (%d)\n", err);
1576 return err;
1577 }
1578
1579 sec = &profile->sec;
1580 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1581 sec->cipher_group = sme->crypto.cipher_group;
1582
1583 return err;
1584 }
1585
1586 static s32
1587 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1588 {
1589 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1590 struct brcmf_cfg80211_security *sec;
1591 s32 val = 0;
1592 s32 err = 0;
1593
1594 if (sme->crypto.n_akm_suites) {
1595 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1596 "wpa_auth", &val);
1597 if (err) {
1598 brcmf_err("could not get wpa_auth (%d)\n", err);
1599 return err;
1600 }
1601 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1602 switch (sme->crypto.akm_suites[0]) {
1603 case WLAN_AKM_SUITE_8021X:
1604 val = WPA_AUTH_UNSPECIFIED;
1605 break;
1606 case WLAN_AKM_SUITE_PSK:
1607 val = WPA_AUTH_PSK;
1608 break;
1609 default:
1610 brcmf_err("invalid cipher group (%d)\n",
1611 sme->crypto.cipher_group);
1612 return -EINVAL;
1613 }
1614 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1615 switch (sme->crypto.akm_suites[0]) {
1616 case WLAN_AKM_SUITE_8021X:
1617 val = WPA2_AUTH_UNSPECIFIED;
1618 break;
1619 case WLAN_AKM_SUITE_PSK:
1620 val = WPA2_AUTH_PSK;
1621 break;
1622 default:
1623 brcmf_err("invalid cipher group (%d)\n",
1624 sme->crypto.cipher_group);
1625 return -EINVAL;
1626 }
1627 }
1628
1629 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1630 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1631 "wpa_auth", val);
1632 if (err) {
1633 brcmf_err("could not set wpa_auth (%d)\n", err);
1634 return err;
1635 }
1636 }
1637 sec = &profile->sec;
1638 sec->wpa_auth = sme->crypto.akm_suites[0];
1639
1640 return err;
1641 }
1642
1643 static s32
1644 brcmf_set_sharedkey(struct net_device *ndev,
1645 struct cfg80211_connect_params *sme)
1646 {
1647 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1648 struct brcmf_cfg80211_security *sec;
1649 struct brcmf_wsec_key key;
1650 s32 val;
1651 s32 err = 0;
1652
1653 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1654
1655 if (sme->key_len == 0)
1656 return 0;
1657
1658 sec = &profile->sec;
1659 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1660 sec->wpa_versions, sec->cipher_pairwise);
1661
1662 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1663 return 0;
1664
1665 if (!(sec->cipher_pairwise &
1666 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1667 return 0;
1668
1669 memset(&key, 0, sizeof(key));
1670 key.len = (u32) sme->key_len;
1671 key.index = (u32) sme->key_idx;
1672 if (key.len > sizeof(key.data)) {
1673 brcmf_err("Too long key length (%u)\n", key.len);
1674 return -EINVAL;
1675 }
1676 memcpy(key.data, sme->key, key.len);
1677 key.flags = BRCMF_PRIMARY_KEY;
1678 switch (sec->cipher_pairwise) {
1679 case WLAN_CIPHER_SUITE_WEP40:
1680 key.algo = CRYPTO_ALGO_WEP1;
1681 break;
1682 case WLAN_CIPHER_SUITE_WEP104:
1683 key.algo = CRYPTO_ALGO_WEP128;
1684 break;
1685 default:
1686 brcmf_err("Invalid algorithm (%d)\n",
1687 sme->crypto.ciphers_pairwise[0]);
1688 return -EINVAL;
1689 }
1690 /* Set the new key/index */
1691 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1692 key.len, key.index, key.algo);
1693 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1694 err = send_key_to_dongle(netdev_priv(ndev), &key);
1695 if (err)
1696 return err;
1697
1698 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1699 brcmf_dbg(CONN, "set auth_type to shared key\n");
1700 val = WL_AUTH_SHARED_KEY; /* shared key */
1701 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1702 if (err)
1703 brcmf_err("set auth failed (%d)\n", err);
1704 }
1705 return err;
1706 }
1707
1708 static
1709 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1710 enum nl80211_auth_type type)
1711 {
1712 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1713 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1714 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1715 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1716 }
1717 return type;
1718 }
1719
1720 static s32
1721 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1722 struct cfg80211_connect_params *sme)
1723 {
1724 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1725 struct brcmf_if *ifp = netdev_priv(ndev);
1726 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1727 struct ieee80211_channel *chan = sme->channel;
1728 struct brcmf_join_params join_params;
1729 size_t join_params_size;
1730 const struct brcmf_tlv *rsn_ie;
1731 const struct brcmf_vs_tlv *wpa_ie;
1732 const void *ie;
1733 u32 ie_len;
1734 struct brcmf_ext_join_params_le *ext_join_params;
1735 u16 chanspec;
1736 s32 err = 0;
1737
1738 brcmf_dbg(TRACE, "Enter\n");
1739 if (!check_vif_up(ifp->vif))
1740 return -EIO;
1741
1742 if (!sme->ssid) {
1743 brcmf_err("Invalid ssid\n");
1744 return -EOPNOTSUPP;
1745 }
1746
1747 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1748 /* A normal (non P2P) connection request setup. */
1749 ie = NULL;
1750 ie_len = 0;
1751 /* find the WPA_IE */
1752 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1753 if (wpa_ie) {
1754 ie = wpa_ie;
1755 ie_len = wpa_ie->len + TLV_HDR_LEN;
1756 } else {
1757 /* find the RSN_IE */
1758 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1759 sme->ie_len,
1760 WLAN_EID_RSN);
1761 if (rsn_ie) {
1762 ie = rsn_ie;
1763 ie_len = rsn_ie->len + TLV_HDR_LEN;
1764 }
1765 }
1766 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1767 }
1768
1769 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1770 sme->ie, sme->ie_len);
1771 if (err)
1772 brcmf_err("Set Assoc REQ IE Failed\n");
1773 else
1774 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1775
1776 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1777
1778 if (chan) {
1779 cfg->channel =
1780 ieee80211_frequency_to_channel(chan->center_freq);
1781 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1782 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1783 cfg->channel, chan->center_freq, chanspec);
1784 } else {
1785 cfg->channel = 0;
1786 chanspec = 0;
1787 }
1788
1789 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1790
1791 err = brcmf_set_wpa_version(ndev, sme);
1792 if (err) {
1793 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1794 goto done;
1795 }
1796
1797 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1798 err = brcmf_set_auth_type(ndev, sme);
1799 if (err) {
1800 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1801 goto done;
1802 }
1803
1804 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1805 if (err) {
1806 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1807 goto done;
1808 }
1809
1810 err = brcmf_set_key_mgmt(ndev, sme);
1811 if (err) {
1812 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1813 goto done;
1814 }
1815
1816 err = brcmf_set_sharedkey(ndev, sme);
1817 if (err) {
1818 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1819 goto done;
1820 }
1821
1822 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1823 (u32)sme->ssid_len);
1824 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1825 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1826 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1827 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1828 profile->ssid.SSID_len);
1829 }
1830
1831 /* Join with specific BSSID and cached SSID
1832 * If SSID is zero join based on BSSID only
1833 */
1834 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1835 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1836 if (cfg->channel)
1837 join_params_size += sizeof(u16);
1838 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1839 if (ext_join_params == NULL) {
1840 err = -ENOMEM;
1841 goto done;
1842 }
1843 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1844 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1845 profile->ssid.SSID_len);
1846
1847 /* Set up join scan parameters */
1848 ext_join_params->scan_le.scan_type = -1;
1849 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1850
1851 if (sme->bssid)
1852 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1853 else
1854 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1855
1856 if (cfg->channel) {
1857 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1858
1859 ext_join_params->assoc_le.chanspec_list[0] =
1860 cpu_to_le16(chanspec);
1861 /* Increase dwell time to receive probe response or detect
1862 * beacon from target AP at a noisy air only during connect
1863 * command.
1864 */
1865 ext_join_params->scan_le.active_time =
1866 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1867 ext_join_params->scan_le.passive_time =
1868 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1869 /* To sync with presence period of VSDB GO send probe request
1870 * more frequently. Probe request will be stopped when it gets
1871 * probe response from target AP/GO.
1872 */
1873 ext_join_params->scan_le.nprobes =
1874 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1875 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1876 } else {
1877 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1878 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1879 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1880 }
1881
1882 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1883 join_params_size);
1884 kfree(ext_join_params);
1885 if (!err)
1886 /* This is it. join command worked, we are done */
1887 goto done;
1888
1889 /* join command failed, fallback to set ssid */
1890 memset(&join_params, 0, sizeof(join_params));
1891 join_params_size = sizeof(join_params.ssid_le);
1892
1893 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1894 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1895
1896 if (sme->bssid)
1897 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1898 else
1899 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1900
1901 if (cfg->channel) {
1902 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1903 join_params.params_le.chanspec_num = cpu_to_le32(1);
1904 join_params_size += sizeof(join_params.params_le);
1905 }
1906 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1907 &join_params, join_params_size);
1908 if (err)
1909 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1910
1911 done:
1912 if (err)
1913 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1914 brcmf_dbg(TRACE, "Exit\n");
1915 return err;
1916 }
1917
1918 static s32
1919 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1920 u16 reason_code)
1921 {
1922 struct brcmf_if *ifp = netdev_priv(ndev);
1923 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1924 struct brcmf_scb_val_le scbval;
1925 s32 err = 0;
1926
1927 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1928 if (!check_vif_up(ifp->vif))
1929 return -EIO;
1930
1931 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1932 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1933 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1934
1935 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1936 scbval.val = cpu_to_le32(reason_code);
1937 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1938 &scbval, sizeof(scbval));
1939 if (err)
1940 brcmf_err("error (%d)\n", err);
1941
1942 brcmf_dbg(TRACE, "Exit\n");
1943 return err;
1944 }
1945
1946 static s32
1947 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1948 enum nl80211_tx_power_setting type, s32 mbm)
1949 {
1950
1951 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1952 struct net_device *ndev = cfg_to_ndev(cfg);
1953 struct brcmf_if *ifp = netdev_priv(ndev);
1954 u16 txpwrmw;
1955 s32 err = 0;
1956 s32 disable = 0;
1957 s32 dbm = MBM_TO_DBM(mbm);
1958
1959 brcmf_dbg(TRACE, "Enter\n");
1960 if (!check_vif_up(ifp->vif))
1961 return -EIO;
1962
1963 switch (type) {
1964 case NL80211_TX_POWER_AUTOMATIC:
1965 break;
1966 case NL80211_TX_POWER_LIMITED:
1967 case NL80211_TX_POWER_FIXED:
1968 if (dbm < 0) {
1969 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1970 err = -EINVAL;
1971 goto done;
1972 }
1973 break;
1974 }
1975 /* Make sure radio is off or on as far as software is concerned */
1976 disable = WL_RADIO_SW_DISABLE << 16;
1977 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1978 if (err)
1979 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1980
1981 if (dbm > 0xffff)
1982 txpwrmw = 0xffff;
1983 else
1984 txpwrmw = (u16) dbm;
1985 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1986 (s32)brcmf_mw_to_qdbm(txpwrmw));
1987 if (err)
1988 brcmf_err("qtxpower error (%d)\n", err);
1989 cfg->conf->tx_power = dbm;
1990
1991 done:
1992 brcmf_dbg(TRACE, "Exit\n");
1993 return err;
1994 }
1995
1996 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1997 struct wireless_dev *wdev,
1998 s32 *dbm)
1999 {
2000 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2001 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
2002 s32 txpwrdbm;
2003 u8 result;
2004 s32 err = 0;
2005
2006 brcmf_dbg(TRACE, "Enter\n");
2007 if (!check_vif_up(ifp->vif))
2008 return -EIO;
2009
2010 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
2011 if (err) {
2012 brcmf_err("error (%d)\n", err);
2013 goto done;
2014 }
2015
2016 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
2017 *dbm = (s32) brcmf_qdbm_to_mw(result);
2018
2019 done:
2020 brcmf_dbg(TRACE, "Exit\n");
2021 return err;
2022 }
2023
2024 static s32
2025 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2026 u8 key_idx, bool unicast, bool multicast)
2027 {
2028 struct brcmf_if *ifp = netdev_priv(ndev);
2029 u32 index;
2030 u32 wsec;
2031 s32 err = 0;
2032
2033 brcmf_dbg(TRACE, "Enter\n");
2034 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2035 if (!check_vif_up(ifp->vif))
2036 return -EIO;
2037
2038 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2039 if (err) {
2040 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2041 goto done;
2042 }
2043
2044 if (wsec & WEP_ENABLED) {
2045 /* Just select a new current key */
2046 index = key_idx;
2047 err = brcmf_fil_cmd_int_set(ifp,
2048 BRCMF_C_SET_KEY_PRIMARY, index);
2049 if (err)
2050 brcmf_err("error (%d)\n", err);
2051 }
2052 done:
2053 brcmf_dbg(TRACE, "Exit\n");
2054 return err;
2055 }
2056
2057 static s32
2058 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
2059 u8 key_idx, const u8 *mac_addr, struct key_params *params)
2060 {
2061 struct brcmf_if *ifp = netdev_priv(ndev);
2062 struct brcmf_wsec_key key;
2063 s32 err = 0;
2064 u8 keybuf[8];
2065
2066 memset(&key, 0, sizeof(key));
2067 key.index = (u32) key_idx;
2068 /* Instead of bcast for ea address for default wep keys,
2069 driver needs it to be Null */
2070 if (!is_multicast_ether_addr(mac_addr))
2071 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
2072 key.len = (u32) params->key_len;
2073 /* check for key index change */
2074 if (key.len == 0) {
2075 /* key delete */
2076 err = send_key_to_dongle(ifp, &key);
2077 if (err)
2078 brcmf_err("key delete error (%d)\n", err);
2079 } else {
2080 if (key.len > sizeof(key.data)) {
2081 brcmf_err("Invalid key length (%d)\n", key.len);
2082 return -EINVAL;
2083 }
2084
2085 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
2086 memcpy(key.data, params->key, key.len);
2087
2088 if (!brcmf_is_apmode(ifp->vif) &&
2089 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
2090 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2091 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2092 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2093 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2094 }
2095
2096 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
2097 if (params->seq && params->seq_len == 6) {
2098 /* rx iv */
2099 u8 *ivptr;
2100 ivptr = (u8 *) params->seq;
2101 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
2102 (ivptr[3] << 8) | ivptr[2];
2103 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
2104 key.iv_initialized = true;
2105 }
2106
2107 switch (params->cipher) {
2108 case WLAN_CIPHER_SUITE_WEP40:
2109 key.algo = CRYPTO_ALGO_WEP1;
2110 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2111 break;
2112 case WLAN_CIPHER_SUITE_WEP104:
2113 key.algo = CRYPTO_ALGO_WEP128;
2114 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2115 break;
2116 case WLAN_CIPHER_SUITE_TKIP:
2117 key.algo = CRYPTO_ALGO_TKIP;
2118 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2119 break;
2120 case WLAN_CIPHER_SUITE_AES_CMAC:
2121 key.algo = CRYPTO_ALGO_AES_CCM;
2122 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2123 break;
2124 case WLAN_CIPHER_SUITE_CCMP:
2125 key.algo = CRYPTO_ALGO_AES_CCM;
2126 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2127 break;
2128 default:
2129 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2130 return -EINVAL;
2131 }
2132 err = send_key_to_dongle(ifp, &key);
2133 if (err)
2134 brcmf_err("wsec_key error (%d)\n", err);
2135 }
2136 return err;
2137 }
2138
2139 static s32
2140 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2141 u8 key_idx, bool pairwise, const u8 *mac_addr,
2142 struct key_params *params)
2143 {
2144 struct brcmf_if *ifp = netdev_priv(ndev);
2145 struct brcmf_wsec_key *key;
2146 s32 val;
2147 s32 wsec;
2148 s32 err = 0;
2149 u8 keybuf[8];
2150
2151 brcmf_dbg(TRACE, "Enter\n");
2152 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2153 if (!check_vif_up(ifp->vif))
2154 return -EIO;
2155
2156 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2157 /* we ignore this key index in this case */
2158 brcmf_err("invalid key index (%d)\n", key_idx);
2159 return -EINVAL;
2160 }
2161
2162 if (mac_addr &&
2163 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2164 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2165 brcmf_dbg(TRACE, "Exit");
2166 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2167 }
2168
2169 key = &ifp->vif->profile.key[key_idx];
2170 memset(key, 0, sizeof(*key));
2171
2172 if (params->key_len > sizeof(key->data)) {
2173 brcmf_err("Too long key length (%u)\n", params->key_len);
2174 err = -EINVAL;
2175 goto done;
2176 }
2177 key->len = params->key_len;
2178 key->index = key_idx;
2179
2180 memcpy(key->data, params->key, key->len);
2181
2182 key->flags = BRCMF_PRIMARY_KEY;
2183 switch (params->cipher) {
2184 case WLAN_CIPHER_SUITE_WEP40:
2185 key->algo = CRYPTO_ALGO_WEP1;
2186 val = WEP_ENABLED;
2187 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2188 break;
2189 case WLAN_CIPHER_SUITE_WEP104:
2190 key->algo = CRYPTO_ALGO_WEP128;
2191 val = WEP_ENABLED;
2192 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2193 break;
2194 case WLAN_CIPHER_SUITE_TKIP:
2195 if (!brcmf_is_apmode(ifp->vif)) {
2196 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2197 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2198 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2199 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2200 }
2201 key->algo = CRYPTO_ALGO_TKIP;
2202 val = TKIP_ENABLED;
2203 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2204 break;
2205 case WLAN_CIPHER_SUITE_AES_CMAC:
2206 key->algo = CRYPTO_ALGO_AES_CCM;
2207 val = AES_ENABLED;
2208 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2209 break;
2210 case WLAN_CIPHER_SUITE_CCMP:
2211 key->algo = CRYPTO_ALGO_AES_CCM;
2212 val = AES_ENABLED;
2213 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2214 break;
2215 default:
2216 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2217 err = -EINVAL;
2218 goto done;
2219 }
2220
2221 err = send_key_to_dongle(ifp, key);
2222 if (err)
2223 goto done;
2224
2225 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2226 if (err) {
2227 brcmf_err("get wsec error (%d)\n", err);
2228 goto done;
2229 }
2230 wsec |= val;
2231 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2232 if (err) {
2233 brcmf_err("set wsec error (%d)\n", err);
2234 goto done;
2235 }
2236
2237 done:
2238 brcmf_dbg(TRACE, "Exit\n");
2239 return err;
2240 }
2241
2242 static s32
2243 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2244 u8 key_idx, bool pairwise, const u8 *mac_addr)
2245 {
2246 struct brcmf_if *ifp = netdev_priv(ndev);
2247 struct brcmf_wsec_key key;
2248 s32 err = 0;
2249
2250 brcmf_dbg(TRACE, "Enter\n");
2251 if (!check_vif_up(ifp->vif))
2252 return -EIO;
2253
2254 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2255 /* we ignore this key index in this case */
2256 brcmf_err("invalid key index (%d)\n", key_idx);
2257 return -EINVAL;
2258 }
2259
2260 memset(&key, 0, sizeof(key));
2261
2262 key.index = (u32) key_idx;
2263 key.flags = BRCMF_PRIMARY_KEY;
2264 key.algo = CRYPTO_ALGO_OFF;
2265
2266 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2267
2268 /* Set the new key/index */
2269 err = send_key_to_dongle(ifp, &key);
2270
2271 brcmf_dbg(TRACE, "Exit\n");
2272 return err;
2273 }
2274
2275 static s32
2276 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2277 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2278 void (*callback) (void *cookie, struct key_params * params))
2279 {
2280 struct key_params params;
2281 struct brcmf_if *ifp = netdev_priv(ndev);
2282 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2283 struct brcmf_cfg80211_security *sec;
2284 s32 wsec;
2285 s32 err = 0;
2286
2287 brcmf_dbg(TRACE, "Enter\n");
2288 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2289 if (!check_vif_up(ifp->vif))
2290 return -EIO;
2291
2292 memset(&params, 0, sizeof(params));
2293
2294 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2295 if (err) {
2296 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2297 /* Ignore this error, may happen during DISASSOC */
2298 err = -EAGAIN;
2299 goto done;
2300 }
2301 if (wsec & WEP_ENABLED) {
2302 sec = &profile->sec;
2303 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2304 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2305 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2306 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2307 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2308 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2309 }
2310 } else if (wsec & TKIP_ENABLED) {
2311 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2312 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2313 } else if (wsec & AES_ENABLED) {
2314 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2315 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2316 } else {
2317 brcmf_err("Invalid algo (0x%x)\n", wsec);
2318 err = -EINVAL;
2319 goto done;
2320 }
2321 callback(cookie, &params);
2322
2323 done:
2324 brcmf_dbg(TRACE, "Exit\n");
2325 return err;
2326 }
2327
2328 static s32
2329 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2330 struct net_device *ndev, u8 key_idx)
2331 {
2332 brcmf_dbg(INFO, "Not supported\n");
2333
2334 return -EOPNOTSUPP;
2335 }
2336
2337 static void
2338 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2339 {
2340 s32 err;
2341 u8 key_idx;
2342 struct brcmf_wsec_key *key;
2343 s32 wsec;
2344
2345 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2346 key = &ifp->vif->profile.key[key_idx];
2347 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2348 (key->algo == CRYPTO_ALGO_WEP128))
2349 break;
2350 }
2351 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2352 return;
2353
2354 err = send_key_to_dongle(ifp, key);
2355 if (err) {
2356 brcmf_err("Setting WEP key failed (%d)\n", err);
2357 return;
2358 }
2359 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2360 if (err) {
2361 brcmf_err("get wsec error (%d)\n", err);
2362 return;
2363 }
2364 wsec |= WEP_ENABLED;
2365 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2366 if (err)
2367 brcmf_err("set wsec error (%d)\n", err);
2368 }
2369
2370 static s32
2371 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2372 const u8 *mac, struct station_info *sinfo)
2373 {
2374 struct brcmf_if *ifp = netdev_priv(ndev);
2375 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2376 struct brcmf_scb_val_le scb_val;
2377 int rssi;
2378 s32 rate;
2379 s32 err = 0;
2380 u8 *bssid = profile->bssid;
2381 struct brcmf_sta_info_le sta_info_le;
2382 u32 beacon_period;
2383 u32 dtim_period;
2384
2385 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2386 if (!check_vif_up(ifp->vif))
2387 return -EIO;
2388
2389 if (brcmf_is_apmode(ifp->vif)) {
2390 memcpy(&sta_info_le, mac, ETH_ALEN);
2391 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2392 &sta_info_le,
2393 sizeof(sta_info_le));
2394 if (err < 0) {
2395 brcmf_err("GET STA INFO failed, %d\n", err);
2396 goto done;
2397 }
2398 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME);
2399 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2400 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2401 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME);
2402 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2403 }
2404 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2405 sinfo->inactive_time, sinfo->connected_time);
2406 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2407 if (memcmp(mac, bssid, ETH_ALEN)) {
2408 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2409 mac, bssid);
2410 err = -ENOENT;
2411 goto done;
2412 }
2413 /* Report the current tx rate */
2414 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2415 if (err) {
2416 brcmf_err("Could not get rate (%d)\n", err);
2417 goto done;
2418 } else {
2419 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2420 sinfo->txrate.legacy = rate * 5;
2421 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2422 }
2423
2424 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2425 &ifp->vif->sme_state)) {
2426 memset(&scb_val, 0, sizeof(scb_val));
2427 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2428 &scb_val, sizeof(scb_val));
2429 if (err) {
2430 brcmf_err("Could not get rssi (%d)\n", err);
2431 goto done;
2432 } else {
2433 rssi = le32_to_cpu(scb_val.val);
2434 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2435 sinfo->signal = rssi;
2436 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2437 }
2438 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2439 &beacon_period);
2440 if (err) {
2441 brcmf_err("Could not get beacon period (%d)\n",
2442 err);
2443 goto done;
2444 } else {
2445 sinfo->bss_param.beacon_interval =
2446 beacon_period;
2447 brcmf_dbg(CONN, "Beacon peroid %d\n",
2448 beacon_period);
2449 }
2450 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2451 &dtim_period);
2452 if (err) {
2453 brcmf_err("Could not get DTIM period (%d)\n",
2454 err);
2455 goto done;
2456 } else {
2457 sinfo->bss_param.dtim_period = dtim_period;
2458 brcmf_dbg(CONN, "DTIM peroid %d\n",
2459 dtim_period);
2460 }
2461 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
2462 }
2463 } else
2464 err = -EPERM;
2465 done:
2466 brcmf_dbg(TRACE, "Exit\n");
2467 return err;
2468 }
2469
2470 static s32
2471 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2472 bool enabled, s32 timeout)
2473 {
2474 s32 pm;
2475 s32 err = 0;
2476 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2477 struct brcmf_if *ifp = netdev_priv(ndev);
2478
2479 brcmf_dbg(TRACE, "Enter\n");
2480
2481 /*
2482 * Powersave enable/disable request is coming from the
2483 * cfg80211 even before the interface is up. In that
2484 * scenario, driver will be storing the power save
2485 * preference in cfg struct to apply this to
2486 * FW later while initializing the dongle
2487 */
2488 cfg->pwr_save = enabled;
2489 if (!check_vif_up(ifp->vif)) {
2490
2491 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2492 goto done;
2493 }
2494
2495 pm = enabled ? PM_FAST : PM_OFF;
2496 /* Do not enable the power save after assoc if it is a p2p interface */
2497 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2498 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2499 pm = PM_OFF;
2500 }
2501 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2502
2503 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2504 if (err) {
2505 if (err == -ENODEV)
2506 brcmf_err("net_device is not ready yet\n");
2507 else
2508 brcmf_err("error (%d)\n", err);
2509 }
2510 done:
2511 brcmf_dbg(TRACE, "Exit\n");
2512 return err;
2513 }
2514
2515 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2516 struct brcmf_bss_info_le *bi)
2517 {
2518 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2519 struct ieee80211_channel *notify_channel;
2520 struct cfg80211_bss *bss;
2521 struct ieee80211_supported_band *band;
2522 struct brcmu_chan ch;
2523 u16 channel;
2524 u32 freq;
2525 u16 notify_capability;
2526 u16 notify_interval;
2527 u8 *notify_ie;
2528 size_t notify_ielen;
2529 s32 notify_signal;
2530
2531 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2532 brcmf_err("Bss info is larger than buffer. Discarding\n");
2533 return 0;
2534 }
2535
2536 if (!bi->ctl_ch) {
2537 ch.chspec = le16_to_cpu(bi->chanspec);
2538 cfg->d11inf.decchspec(&ch);
2539 bi->ctl_ch = ch.chnum;
2540 }
2541 channel = bi->ctl_ch;
2542
2543 if (channel <= CH_MAX_2G_CHANNEL)
2544 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2545 else
2546 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2547
2548 freq = ieee80211_channel_to_frequency(channel, band->band);
2549 notify_channel = ieee80211_get_channel(wiphy, freq);
2550
2551 notify_capability = le16_to_cpu(bi->capability);
2552 notify_interval = le16_to_cpu(bi->beacon_period);
2553 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2554 notify_ielen = le32_to_cpu(bi->ie_length);
2555 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2556
2557 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2558 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2559 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2560 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2561 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2562
2563 bss = cfg80211_inform_bss(wiphy, notify_channel,
2564 CFG80211_BSS_FTYPE_UNKNOWN,
2565 (const u8 *)bi->BSSID,
2566 0, notify_capability,
2567 notify_interval, notify_ie,
2568 notify_ielen, notify_signal,
2569 GFP_KERNEL);
2570
2571 if (!bss)
2572 return -ENOMEM;
2573
2574 cfg80211_put_bss(wiphy, bss);
2575
2576 return 0;
2577 }
2578
2579 static struct brcmf_bss_info_le *
2580 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2581 {
2582 if (bss == NULL)
2583 return list->bss_info_le;
2584 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2585 le32_to_cpu(bss->length));
2586 }
2587
2588 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2589 {
2590 struct brcmf_scan_results *bss_list;
2591 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2592 s32 err = 0;
2593 int i;
2594
2595 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2596 if (bss_list->count != 0 &&
2597 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2598 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2599 bss_list->version);
2600 return -EOPNOTSUPP;
2601 }
2602 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2603 for (i = 0; i < bss_list->count; i++) {
2604 bi = next_bss_le(bss_list, bi);
2605 err = brcmf_inform_single_bss(cfg, bi);
2606 if (err)
2607 break;
2608 }
2609 return err;
2610 }
2611
2612 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2613 struct net_device *ndev, const u8 *bssid)
2614 {
2615 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2616 struct ieee80211_channel *notify_channel;
2617 struct brcmf_bss_info_le *bi = NULL;
2618 struct ieee80211_supported_band *band;
2619 struct cfg80211_bss *bss;
2620 struct brcmu_chan ch;
2621 u8 *buf = NULL;
2622 s32 err = 0;
2623 u32 freq;
2624 u16 notify_capability;
2625 u16 notify_interval;
2626 u8 *notify_ie;
2627 size_t notify_ielen;
2628 s32 notify_signal;
2629
2630 brcmf_dbg(TRACE, "Enter\n");
2631
2632 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2633 if (buf == NULL) {
2634 err = -ENOMEM;
2635 goto CleanUp;
2636 }
2637
2638 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2639
2640 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2641 buf, WL_BSS_INFO_MAX);
2642 if (err) {
2643 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2644 goto CleanUp;
2645 }
2646
2647 bi = (struct brcmf_bss_info_le *)(buf + 4);
2648
2649 ch.chspec = le16_to_cpu(bi->chanspec);
2650 cfg->d11inf.decchspec(&ch);
2651
2652 if (ch.band == BRCMU_CHAN_BAND_2G)
2653 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2654 else
2655 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2656
2657 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2658 notify_channel = ieee80211_get_channel(wiphy, freq);
2659
2660 notify_capability = le16_to_cpu(bi->capability);
2661 notify_interval = le16_to_cpu(bi->beacon_period);
2662 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2663 notify_ielen = le32_to_cpu(bi->ie_length);
2664 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2665
2666 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2667 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2668 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2669 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2670
2671 bss = cfg80211_inform_bss(wiphy, notify_channel,
2672 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2673 notify_capability, notify_interval,
2674 notify_ie, notify_ielen, notify_signal,
2675 GFP_KERNEL);
2676
2677 if (!bss) {
2678 err = -ENOMEM;
2679 goto CleanUp;
2680 }
2681
2682 cfg80211_put_bss(wiphy, bss);
2683
2684 CleanUp:
2685
2686 kfree(buf);
2687
2688 brcmf_dbg(TRACE, "Exit\n");
2689
2690 return err;
2691 }
2692
2693 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2694 struct brcmf_if *ifp)
2695 {
2696 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2697 struct brcmf_bss_info_le *bi;
2698 struct brcmf_ssid *ssid;
2699 const struct brcmf_tlv *tim;
2700 u16 beacon_interval;
2701 u8 dtim_period;
2702 size_t ie_len;
2703 u8 *ie;
2704 s32 err = 0;
2705
2706 brcmf_dbg(TRACE, "Enter\n");
2707 if (brcmf_is_ibssmode(ifp->vif))
2708 return err;
2709
2710 ssid = &profile->ssid;
2711
2712 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2713 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2714 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2715 if (err) {
2716 brcmf_err("Could not get bss info %d\n", err);
2717 goto update_bss_info_out;
2718 }
2719
2720 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2721 err = brcmf_inform_single_bss(cfg, bi);
2722 if (err)
2723 goto update_bss_info_out;
2724
2725 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2726 ie_len = le32_to_cpu(bi->ie_length);
2727 beacon_interval = le16_to_cpu(bi->beacon_period);
2728
2729 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2730 if (tim)
2731 dtim_period = tim->data[1];
2732 else {
2733 /*
2734 * active scan was done so we could not get dtim
2735 * information out of probe response.
2736 * so we speficially query dtim information to dongle.
2737 */
2738 u32 var;
2739 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2740 if (err) {
2741 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2742 goto update_bss_info_out;
2743 }
2744 dtim_period = (u8)var;
2745 }
2746
2747 update_bss_info_out:
2748 brcmf_dbg(TRACE, "Exit");
2749 return err;
2750 }
2751
2752 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2753 {
2754 struct escan_info *escan = &cfg->escan_info;
2755
2756 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2757 if (cfg->scan_request) {
2758 escan->escan_state = WL_ESCAN_STATE_IDLE;
2759 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2760 }
2761 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2762 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2763 }
2764
2765 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2766 {
2767 struct brcmf_cfg80211_info *cfg =
2768 container_of(work, struct brcmf_cfg80211_info,
2769 escan_timeout_work);
2770
2771 brcmf_inform_bss(cfg);
2772 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2773 }
2774
2775 static void brcmf_escan_timeout(unsigned long data)
2776 {
2777 struct brcmf_cfg80211_info *cfg =
2778 (struct brcmf_cfg80211_info *)data;
2779
2780 if (cfg->scan_request) {
2781 brcmf_err("timer expired\n");
2782 schedule_work(&cfg->escan_timeout_work);
2783 }
2784 }
2785
2786 static s32
2787 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2788 struct brcmf_bss_info_le *bss,
2789 struct brcmf_bss_info_le *bss_info_le)
2790 {
2791 struct brcmu_chan ch_bss, ch_bss_info_le;
2792
2793 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2794 cfg->d11inf.decchspec(&ch_bss);
2795 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2796 cfg->d11inf.decchspec(&ch_bss_info_le);
2797
2798 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2799 ch_bss.band == ch_bss_info_le.band &&
2800 bss_info_le->SSID_len == bss->SSID_len &&
2801 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2802 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2803 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2804 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2805 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2806
2807 /* preserve max RSSI if the measurements are
2808 * both on-channel or both off-channel
2809 */
2810 if (bss_info_rssi > bss_rssi)
2811 bss->RSSI = bss_info_le->RSSI;
2812 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2813 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2814 /* preserve the on-channel rssi measurement
2815 * if the new measurement is off channel
2816 */
2817 bss->RSSI = bss_info_le->RSSI;
2818 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2819 }
2820 return 1;
2821 }
2822 return 0;
2823 }
2824
2825 static s32
2826 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2827 const struct brcmf_event_msg *e, void *data)
2828 {
2829 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2830 s32 status;
2831 struct brcmf_escan_result_le *escan_result_le;
2832 struct brcmf_bss_info_le *bss_info_le;
2833 struct brcmf_bss_info_le *bss = NULL;
2834 u32 bi_length;
2835 struct brcmf_scan_results *list;
2836 u32 i;
2837 bool aborted;
2838
2839 status = e->status;
2840
2841 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2842 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2843 return -EPERM;
2844 }
2845
2846 if (status == BRCMF_E_STATUS_PARTIAL) {
2847 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2848 escan_result_le = (struct brcmf_escan_result_le *) data;
2849 if (!escan_result_le) {
2850 brcmf_err("Invalid escan result (NULL pointer)\n");
2851 goto exit;
2852 }
2853 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2854 brcmf_err("Invalid bss_count %d: ignoring\n",
2855 escan_result_le->bss_count);
2856 goto exit;
2857 }
2858 bss_info_le = &escan_result_le->bss_info_le;
2859
2860 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2861 goto exit;
2862
2863 if (!cfg->scan_request) {
2864 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2865 goto exit;
2866 }
2867
2868 bi_length = le32_to_cpu(bss_info_le->length);
2869 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2870 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2871 brcmf_err("Invalid bss_info length %d: ignoring\n",
2872 bi_length);
2873 goto exit;
2874 }
2875
2876 if (!(cfg_to_wiphy(cfg)->interface_modes &
2877 BIT(NL80211_IFTYPE_ADHOC))) {
2878 if (le16_to_cpu(bss_info_le->capability) &
2879 WLAN_CAPABILITY_IBSS) {
2880 brcmf_err("Ignoring IBSS result\n");
2881 goto exit;
2882 }
2883 }
2884
2885 list = (struct brcmf_scan_results *)
2886 cfg->escan_info.escan_buf;
2887 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2888 brcmf_err("Buffer is too small: ignoring\n");
2889 goto exit;
2890 }
2891
2892 for (i = 0; i < list->count; i++) {
2893 bss = bss ? (struct brcmf_bss_info_le *)
2894 ((unsigned char *)bss +
2895 le32_to_cpu(bss->length)) : list->bss_info_le;
2896 if (brcmf_compare_update_same_bss(cfg, bss,
2897 bss_info_le))
2898 goto exit;
2899 }
2900 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2901 bss_info_le, bi_length);
2902 list->version = le32_to_cpu(bss_info_le->version);
2903 list->buflen += bi_length;
2904 list->count++;
2905 } else {
2906 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2907 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2908 goto exit;
2909 if (cfg->scan_request) {
2910 brcmf_inform_bss(cfg);
2911 aborted = status != BRCMF_E_STATUS_SUCCESS;
2912 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2913 } else
2914 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2915 status);
2916 }
2917 exit:
2918 return 0;
2919 }
2920
2921 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2922 {
2923 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2924 brcmf_cfg80211_escan_handler);
2925 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2926 /* Init scan_timeout timer */
2927 init_timer(&cfg->escan_timeout);
2928 cfg->escan_timeout.data = (unsigned long) cfg;
2929 cfg->escan_timeout.function = brcmf_escan_timeout;
2930 INIT_WORK(&cfg->escan_timeout_work,
2931 brcmf_cfg80211_escan_timeout_worker);
2932 }
2933
2934 static __always_inline void brcmf_delay(u32 ms)
2935 {
2936 if (ms < 1000 / HZ) {
2937 cond_resched();
2938 mdelay(ms);
2939 } else {
2940 msleep(ms);
2941 }
2942 }
2943
2944 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2945 u8 *pattern, u32 patternsize, u8 *mask,
2946 u32 packet_offset)
2947 {
2948 struct brcmf_fil_wowl_pattern_le *filter;
2949 u32 masksize;
2950 u32 patternoffset;
2951 u8 *buf;
2952 u32 bufsize;
2953 s32 ret;
2954
2955 masksize = (patternsize + 7) / 8;
2956 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2957
2958 bufsize = sizeof(*filter) + patternsize + masksize;
2959 buf = kzalloc(bufsize, GFP_KERNEL);
2960 if (!buf)
2961 return -ENOMEM;
2962 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2963
2964 memcpy(filter->cmd, cmd, 4);
2965 filter->masksize = cpu_to_le32(masksize);
2966 filter->offset = cpu_to_le32(packet_offset);
2967 filter->patternoffset = cpu_to_le32(patternoffset);
2968 filter->patternsize = cpu_to_le32(patternsize);
2969 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2970
2971 if ((mask) && (masksize))
2972 memcpy(buf + sizeof(*filter), mask, masksize);
2973 if ((pattern) && (patternsize))
2974 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2975
2976 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2977
2978 kfree(buf);
2979 return ret;
2980 }
2981
2982 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2983 {
2984 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2985 struct net_device *ndev = cfg_to_ndev(cfg);
2986 struct brcmf_if *ifp = netdev_priv(ndev);
2987
2988 brcmf_dbg(TRACE, "Enter\n");
2989
2990 if (cfg->wowl_enabled) {
2991 brcmf_configure_arp_offload(ifp, true);
2992 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2993 cfg->pre_wowl_pmmode);
2994 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2995 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2996 cfg->wowl_enabled = false;
2997 }
2998 return 0;
2999 }
3000
3001 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
3002 struct brcmf_if *ifp,
3003 struct cfg80211_wowlan *wowl)
3004 {
3005 u32 wowl_config;
3006 u32 i;
3007
3008 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
3009
3010 brcmf_configure_arp_offload(ifp, false);
3011 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
3012 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
3013
3014 wowl_config = 0;
3015 if (wowl->disconnect)
3016 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
3017 if (wowl->magic_pkt)
3018 wowl_config |= BRCMF_WOWL_MAGIC;
3019 if ((wowl->patterns) && (wowl->n_patterns)) {
3020 wowl_config |= BRCMF_WOWL_NET;
3021 for (i = 0; i < wowl->n_patterns; i++) {
3022 brcmf_config_wowl_pattern(ifp, "add",
3023 (u8 *)wowl->patterns[i].pattern,
3024 wowl->patterns[i].pattern_len,
3025 (u8 *)wowl->patterns[i].mask,
3026 wowl->patterns[i].pkt_offset);
3027 }
3028 }
3029 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3030 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3031 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3032 cfg->wowl_enabled = true;
3033 }
3034
3035 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3036 struct cfg80211_wowlan *wowl)
3037 {
3038 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3039 struct net_device *ndev = cfg_to_ndev(cfg);
3040 struct brcmf_if *ifp = netdev_priv(ndev);
3041 struct brcmf_cfg80211_vif *vif;
3042
3043 brcmf_dbg(TRACE, "Enter\n");
3044
3045 /* if the primary net_device is not READY there is nothing
3046 * we can do but pray resume goes smoothly.
3047 */
3048 if (!check_vif_up(ifp->vif))
3049 goto exit;
3050
3051 /* end any scanning */
3052 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3053 brcmf_abort_scanning(cfg);
3054
3055 if (wowl == NULL) {
3056 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3057 list_for_each_entry(vif, &cfg->vif_list, list) {
3058 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3059 continue;
3060 /* While going to suspend if associated with AP
3061 * disassociate from AP to save power while system is
3062 * in suspended state
3063 */
3064 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED);
3065 /* Make sure WPA_Supplicant receives all the event
3066 * generated due to DISASSOC call to the fw to keep
3067 * the state fw and WPA_Supplicant state consistent
3068 */
3069 brcmf_delay(500);
3070 }
3071 /* Configure MPC */
3072 brcmf_set_mpc(ifp, 1);
3073
3074 } else {
3075 /* Configure WOWL paramaters */
3076 brcmf_configure_wowl(cfg, ifp, wowl);
3077 }
3078
3079 exit:
3080 brcmf_dbg(TRACE, "Exit\n");
3081 /* clear any scanning activity */
3082 cfg->scan_status = 0;
3083 return 0;
3084 }
3085
3086 static __used s32
3087 brcmf_update_pmklist(struct net_device *ndev,
3088 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3089 {
3090 int i, j;
3091 u32 pmkid_len;
3092
3093 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3094
3095 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
3096 for (i = 0; i < pmkid_len; i++) {
3097 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
3098 &pmk_list->pmkids.pmkid[i].BSSID);
3099 for (j = 0; j < WLAN_PMKID_LEN; j++)
3100 brcmf_dbg(CONN, "%02x\n",
3101 pmk_list->pmkids.pmkid[i].PMKID[j]);
3102 }
3103
3104 if (!err)
3105 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3106 (char *)pmk_list, sizeof(*pmk_list));
3107
3108 return err;
3109 }
3110
3111 static s32
3112 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3113 struct cfg80211_pmksa *pmksa)
3114 {
3115 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3116 struct brcmf_if *ifp = netdev_priv(ndev);
3117 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3118 s32 err = 0;
3119 u32 pmkid_len, i;
3120
3121 brcmf_dbg(TRACE, "Enter\n");
3122 if (!check_vif_up(ifp->vif))
3123 return -EIO;
3124
3125 pmkid_len = le32_to_cpu(pmkids->npmkid);
3126 for (i = 0; i < pmkid_len; i++)
3127 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3128 break;
3129 if (i < WL_NUM_PMKIDS_MAX) {
3130 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3131 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3132 if (i == pmkid_len) {
3133 pmkid_len++;
3134 pmkids->npmkid = cpu_to_le32(pmkid_len);
3135 }
3136 } else
3137 err = -EINVAL;
3138
3139 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3140 pmkids->pmkid[pmkid_len].BSSID);
3141 for (i = 0; i < WLAN_PMKID_LEN; i++)
3142 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3143
3144 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3145
3146 brcmf_dbg(TRACE, "Exit\n");
3147 return err;
3148 }
3149
3150 static s32
3151 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3152 struct cfg80211_pmksa *pmksa)
3153 {
3154 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3155 struct brcmf_if *ifp = netdev_priv(ndev);
3156 struct pmkid_list pmkid;
3157 s32 err = 0;
3158 u32 pmkid_len, i;
3159
3160 brcmf_dbg(TRACE, "Enter\n");
3161 if (!check_vif_up(ifp->vif))
3162 return -EIO;
3163
3164 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3165 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3166
3167 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3168 &pmkid.pmkid[0].BSSID);
3169 for (i = 0; i < WLAN_PMKID_LEN; i++)
3170 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3171
3172 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3173 for (i = 0; i < pmkid_len; i++)
3174 if (!memcmp
3175 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3176 ETH_ALEN))
3177 break;
3178
3179 if ((pmkid_len > 0)
3180 && (i < pmkid_len)) {
3181 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3182 sizeof(struct pmkid));
3183 for (; i < (pmkid_len - 1); i++) {
3184 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3185 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3186 ETH_ALEN);
3187 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3188 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3189 WLAN_PMKID_LEN);
3190 }
3191 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3192 } else
3193 err = -EINVAL;
3194
3195 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3196
3197 brcmf_dbg(TRACE, "Exit\n");
3198 return err;
3199
3200 }
3201
3202 static s32
3203 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3204 {
3205 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3206 struct brcmf_if *ifp = netdev_priv(ndev);
3207 s32 err = 0;
3208
3209 brcmf_dbg(TRACE, "Enter\n");
3210 if (!check_vif_up(ifp->vif))
3211 return -EIO;
3212
3213 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3214 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3215
3216 brcmf_dbg(TRACE, "Exit\n");
3217 return err;
3218
3219 }
3220
3221 /*
3222 * PFN result doesn't have all the info which are
3223 * required by the supplicant
3224 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3225 * via wl_inform_single_bss in the required format. Escan does require the
3226 * scan request in the form of cfg80211_scan_request. For timebeing, create
3227 * cfg80211_scan_request one out of the received PNO event.
3228 */
3229 static s32
3230 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3231 const struct brcmf_event_msg *e, void *data)
3232 {
3233 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3234 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3235 struct cfg80211_scan_request *request = NULL;
3236 struct cfg80211_ssid *ssid = NULL;
3237 struct ieee80211_channel *channel = NULL;
3238 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3239 int err = 0;
3240 int channel_req = 0;
3241 int band = 0;
3242 struct brcmf_pno_scanresults_le *pfn_result;
3243 u32 result_count;
3244 u32 status;
3245
3246 brcmf_dbg(SCAN, "Enter\n");
3247
3248 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3249 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3250 return 0;
3251 }
3252
3253 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3254 result_count = le32_to_cpu(pfn_result->count);
3255 status = le32_to_cpu(pfn_result->status);
3256
3257 /*
3258 * PFN event is limited to fit 512 bytes so we may get
3259 * multiple NET_FOUND events. For now place a warning here.
3260 */
3261 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3262 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3263 if (result_count > 0) {
3264 int i;
3265
3266 request = kzalloc(sizeof(*request), GFP_KERNEL);
3267 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3268 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3269 if (!request || !ssid || !channel) {
3270 err = -ENOMEM;
3271 goto out_err;
3272 }
3273
3274 request->wiphy = wiphy;
3275 data += sizeof(struct brcmf_pno_scanresults_le);
3276 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3277
3278 for (i = 0; i < result_count; i++) {
3279 netinfo = &netinfo_start[i];
3280 if (!netinfo) {
3281 brcmf_err("Invalid netinfo ptr. index: %d\n",
3282 i);
3283 err = -EINVAL;
3284 goto out_err;
3285 }
3286
3287 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3288 netinfo->SSID, netinfo->channel);
3289 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3290 ssid[i].ssid_len = netinfo->SSID_len;
3291 request->n_ssids++;
3292
3293 channel_req = netinfo->channel;
3294 if (channel_req <= CH_MAX_2G_CHANNEL)
3295 band = NL80211_BAND_2GHZ;
3296 else
3297 band = NL80211_BAND_5GHZ;
3298 channel[i].center_freq =
3299 ieee80211_channel_to_frequency(channel_req,
3300 band);
3301 channel[i].band = band;
3302 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3303 request->channels[i] = &channel[i];
3304 request->n_channels++;
3305 }
3306
3307 /* assign parsed ssid array */
3308 if (request->n_ssids)
3309 request->ssids = &ssid[0];
3310
3311 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3312 /* Abort any on-going scan */
3313 brcmf_abort_scanning(cfg);
3314 }
3315
3316 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3317 cfg->escan_info.run = brcmf_run_escan;
3318 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3319 if (err) {
3320 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3321 goto out_err;
3322 }
3323 cfg->sched_escan = true;
3324 cfg->scan_request = request;
3325 } else {
3326 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3327 goto out_err;
3328 }
3329
3330 kfree(ssid);
3331 kfree(channel);
3332 kfree(request);
3333 return 0;
3334
3335 out_err:
3336 kfree(ssid);
3337 kfree(channel);
3338 kfree(request);
3339 cfg80211_sched_scan_stopped(wiphy);
3340 return err;
3341 }
3342
3343 static int brcmf_dev_pno_clean(struct net_device *ndev)
3344 {
3345 int ret;
3346
3347 /* Disable pfn */
3348 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3349 if (ret == 0) {
3350 /* clear pfn */
3351 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3352 NULL, 0);
3353 }
3354 if (ret < 0)
3355 brcmf_err("failed code %d\n", ret);
3356
3357 return ret;
3358 }
3359
3360 static int brcmf_dev_pno_config(struct net_device *ndev)
3361 {
3362 struct brcmf_pno_param_le pfn_param;
3363
3364 memset(&pfn_param, 0, sizeof(pfn_param));
3365 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3366
3367 /* set extra pno params */
3368 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3369 pfn_param.repeat = BRCMF_PNO_REPEAT;
3370 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3371
3372 /* set up pno scan fr */
3373 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3374
3375 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3376 &pfn_param, sizeof(pfn_param));
3377 }
3378
3379 static int
3380 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3381 struct net_device *ndev,
3382 struct cfg80211_sched_scan_request *request)
3383 {
3384 struct brcmf_if *ifp = netdev_priv(ndev);
3385 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3386 struct brcmf_pno_net_param_le pfn;
3387 int i;
3388 int ret = 0;
3389
3390 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3391 request->n_match_sets, request->n_ssids);
3392 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3393 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3394 return -EAGAIN;
3395 }
3396 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3397 brcmf_err("Scanning suppressed: status (%lu)\n",
3398 cfg->scan_status);
3399 return -EAGAIN;
3400 }
3401
3402 if (!request->n_ssids || !request->n_match_sets) {
3403 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3404 request->n_ssids);
3405 return -EINVAL;
3406 }
3407
3408 if (request->n_ssids > 0) {
3409 for (i = 0; i < request->n_ssids; i++) {
3410 /* Active scan req for ssids */
3411 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3412 request->ssids[i].ssid);
3413
3414 /*
3415 * match_set ssids is a supert set of n_ssid list,
3416 * so we need not add these set seperately.
3417 */
3418 }
3419 }
3420
3421 if (request->n_match_sets > 0) {
3422 /* clean up everything */
3423 ret = brcmf_dev_pno_clean(ndev);
3424 if (ret < 0) {
3425 brcmf_err("failed error=%d\n", ret);
3426 return ret;
3427 }
3428
3429 /* configure pno */
3430 ret = brcmf_dev_pno_config(ndev);
3431 if (ret < 0) {
3432 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3433 return -EINVAL;
3434 }
3435
3436 /* configure each match set */
3437 for (i = 0; i < request->n_match_sets; i++) {
3438 struct cfg80211_ssid *ssid;
3439 u32 ssid_len;
3440
3441 ssid = &request->match_sets[i].ssid;
3442 ssid_len = ssid->ssid_len;
3443
3444 if (!ssid_len) {
3445 brcmf_err("skip broadcast ssid\n");
3446 continue;
3447 }
3448 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3449 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3450 pfn.wsec = cpu_to_le32(0);
3451 pfn.infra = cpu_to_le32(1);
3452 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3453 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3454 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3455 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3456 sizeof(pfn));
3457 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3458 ret == 0 ? "set" : "failed", ssid->ssid);
3459 }
3460 /* Enable the PNO */
3461 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3462 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3463 return -EINVAL;
3464 }
3465 } else {
3466 return -EINVAL;
3467 }
3468
3469 return 0;
3470 }
3471
3472 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3473 struct net_device *ndev)
3474 {
3475 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3476
3477 brcmf_dbg(SCAN, "enter\n");
3478 brcmf_dev_pno_clean(ndev);
3479 if (cfg->sched_escan)
3480 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3481 return 0;
3482 }
3483
3484 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3485 {
3486 s32 err;
3487
3488 /* set auth */
3489 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3490 if (err < 0) {
3491 brcmf_err("auth error %d\n", err);
3492 return err;
3493 }
3494 /* set wsec */
3495 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3496 if (err < 0) {
3497 brcmf_err("wsec error %d\n", err);
3498 return err;
3499 }
3500 /* set upper-layer auth */
3501 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3502 if (err < 0) {
3503 brcmf_err("wpa_auth error %d\n", err);
3504 return err;
3505 }
3506
3507 return 0;
3508 }
3509
3510 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3511 {
3512 if (is_rsn_ie)
3513 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3514
3515 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3516 }
3517
3518 static s32
3519 brcmf_configure_wpaie(struct brcmf_if *ifp,
3520 const struct brcmf_vs_tlv *wpa_ie,
3521 bool is_rsn_ie)
3522 {
3523 u32 auth = 0; /* d11 open authentication */
3524 u16 count;
3525 s32 err = 0;
3526 s32 len = 0;
3527 u32 i;
3528 u32 wsec;
3529 u32 pval = 0;
3530 u32 gval = 0;
3531 u32 wpa_auth = 0;
3532 u32 offset;
3533 u8 *data;
3534 u16 rsn_cap;
3535 u32 wme_bss_disable;
3536
3537 brcmf_dbg(TRACE, "Enter\n");
3538 if (wpa_ie == NULL)
3539 goto exit;
3540
3541 len = wpa_ie->len + TLV_HDR_LEN;
3542 data = (u8 *)wpa_ie;
3543 offset = TLV_HDR_LEN;
3544 if (!is_rsn_ie)
3545 offset += VS_IE_FIXED_HDR_LEN;
3546 else
3547 offset += WPA_IE_VERSION_LEN;
3548
3549 /* check for multicast cipher suite */
3550 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3551 err = -EINVAL;
3552 brcmf_err("no multicast cipher suite\n");
3553 goto exit;
3554 }
3555
3556 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3557 err = -EINVAL;
3558 brcmf_err("ivalid OUI\n");
3559 goto exit;
3560 }
3561 offset += TLV_OUI_LEN;
3562
3563 /* pick up multicast cipher */
3564 switch (data[offset]) {
3565 case WPA_CIPHER_NONE:
3566 gval = 0;
3567 break;
3568 case WPA_CIPHER_WEP_40:
3569 case WPA_CIPHER_WEP_104:
3570 gval = WEP_ENABLED;
3571 break;
3572 case WPA_CIPHER_TKIP:
3573 gval = TKIP_ENABLED;
3574 break;
3575 case WPA_CIPHER_AES_CCM:
3576 gval = AES_ENABLED;
3577 break;
3578 default:
3579 err = -EINVAL;
3580 brcmf_err("Invalid multi cast cipher info\n");
3581 goto exit;
3582 }
3583
3584 offset++;
3585 /* walk thru unicast cipher list and pick up what we recognize */
3586 count = data[offset] + (data[offset + 1] << 8);
3587 offset += WPA_IE_SUITE_COUNT_LEN;
3588 /* Check for unicast suite(s) */
3589 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3590 err = -EINVAL;
3591 brcmf_err("no unicast cipher suite\n");
3592 goto exit;
3593 }
3594 for (i = 0; i < count; i++) {
3595 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3596 err = -EINVAL;
3597 brcmf_err("ivalid OUI\n");
3598 goto exit;
3599 }
3600 offset += TLV_OUI_LEN;
3601 switch (data[offset]) {
3602 case WPA_CIPHER_NONE:
3603 break;
3604 case WPA_CIPHER_WEP_40:
3605 case WPA_CIPHER_WEP_104:
3606 pval |= WEP_ENABLED;
3607 break;
3608 case WPA_CIPHER_TKIP:
3609 pval |= TKIP_ENABLED;
3610 break;
3611 case WPA_CIPHER_AES_CCM:
3612 pval |= AES_ENABLED;
3613 break;
3614 default:
3615 brcmf_err("Ivalid unicast security info\n");
3616 }
3617 offset++;
3618 }
3619 /* walk thru auth management suite list and pick up what we recognize */
3620 count = data[offset] + (data[offset + 1] << 8);
3621 offset += WPA_IE_SUITE_COUNT_LEN;
3622 /* Check for auth key management suite(s) */
3623 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3624 err = -EINVAL;
3625 brcmf_err("no auth key mgmt suite\n");
3626 goto exit;
3627 }
3628 for (i = 0; i < count; i++) {
3629 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3630 err = -EINVAL;
3631 brcmf_err("ivalid OUI\n");
3632 goto exit;
3633 }
3634 offset += TLV_OUI_LEN;
3635 switch (data[offset]) {
3636 case RSN_AKM_NONE:
3637 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3638 wpa_auth |= WPA_AUTH_NONE;
3639 break;
3640 case RSN_AKM_UNSPECIFIED:
3641 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3642 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3643 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3644 break;
3645 case RSN_AKM_PSK:
3646 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3647 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3648 (wpa_auth |= WPA_AUTH_PSK);
3649 break;
3650 default:
3651 brcmf_err("Ivalid key mgmt info\n");
3652 }
3653 offset++;
3654 }
3655
3656 if (is_rsn_ie) {
3657 wme_bss_disable = 1;
3658 if ((offset + RSN_CAP_LEN) <= len) {
3659 rsn_cap = data[offset] + (data[offset + 1] << 8);
3660 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3661 wme_bss_disable = 0;
3662 }
3663 /* set wme_bss_disable to sync RSN Capabilities */
3664 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3665 wme_bss_disable);
3666 if (err < 0) {
3667 brcmf_err("wme_bss_disable error %d\n", err);
3668 goto exit;
3669 }
3670 }
3671 /* FOR WPS , set SES_OW_ENABLED */
3672 wsec = (pval | gval | SES_OW_ENABLED);
3673
3674 /* set auth */
3675 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3676 if (err < 0) {
3677 brcmf_err("auth error %d\n", err);
3678 goto exit;
3679 }
3680 /* set wsec */
3681 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3682 if (err < 0) {
3683 brcmf_err("wsec error %d\n", err);
3684 goto exit;
3685 }
3686 /* set upper-layer auth */
3687 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3688 if (err < 0) {
3689 brcmf_err("wpa_auth error %d\n", err);
3690 goto exit;
3691 }
3692
3693 exit:
3694 return err;
3695 }
3696
3697 static s32
3698 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3699 struct parsed_vndr_ies *vndr_ies)
3700 {
3701 struct brcmf_vs_tlv *vndrie;
3702 struct brcmf_tlv *ie;
3703 struct parsed_vndr_ie_info *parsed_info;
3704 s32 remaining_len;
3705
3706 remaining_len = (s32)vndr_ie_len;
3707 memset(vndr_ies, 0, sizeof(*vndr_ies));
3708
3709 ie = (struct brcmf_tlv *)vndr_ie_buf;
3710 while (ie) {
3711 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3712 goto next;
3713 vndrie = (struct brcmf_vs_tlv *)ie;
3714 /* len should be bigger than OUI length + one */
3715 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3716 brcmf_err("invalid vndr ie. length is too small %d\n",
3717 vndrie->len);
3718 goto next;
3719 }
3720 /* if wpa or wme ie, do not add ie */
3721 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3722 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3723 (vndrie->oui_type == WME_OUI_TYPE))) {
3724 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3725 goto next;
3726 }
3727
3728 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3729
3730 /* save vndr ie information */
3731 parsed_info->ie_ptr = (char *)vndrie;
3732 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3733 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3734
3735 vndr_ies->count++;
3736
3737 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3738 parsed_info->vndrie.oui[0],
3739 parsed_info->vndrie.oui[1],
3740 parsed_info->vndrie.oui[2],
3741 parsed_info->vndrie.oui_type);
3742
3743 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3744 break;
3745 next:
3746 remaining_len -= (ie->len + TLV_HDR_LEN);
3747 if (remaining_len <= TLV_HDR_LEN)
3748 ie = NULL;
3749 else
3750 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3751 TLV_HDR_LEN);
3752 }
3753 return 0;
3754 }
3755
3756 static u32
3757 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3758 {
3759
3760 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3761 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3762
3763 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]);
3764
3765 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]);
3766
3767 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3768
3769 return ie_len + VNDR_IE_HDR_SIZE;
3770 }
3771
3772 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3773 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3774 {
3775 struct brcmf_if *ifp;
3776 struct vif_saved_ie *saved_ie;
3777 s32 err = 0;
3778 u8 *iovar_ie_buf;
3779 u8 *curr_ie_buf;
3780 u8 *mgmt_ie_buf = NULL;
3781 int mgmt_ie_buf_len;
3782 u32 *mgmt_ie_len;
3783 u32 del_add_ie_buf_len = 0;
3784 u32 total_ie_buf_len = 0;
3785 u32 parsed_ie_buf_len = 0;
3786 struct parsed_vndr_ies old_vndr_ies;
3787 struct parsed_vndr_ies new_vndr_ies;
3788 struct parsed_vndr_ie_info *vndrie_info;
3789 s32 i;
3790 u8 *ptr;
3791 int remained_buf_len;
3792
3793 if (!vif)
3794 return -ENODEV;
3795 ifp = vif->ifp;
3796 saved_ie = &vif->saved_ie;
3797
3798 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3799 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3800 if (!iovar_ie_buf)
3801 return -ENOMEM;
3802 curr_ie_buf = iovar_ie_buf;
3803 switch (pktflag) {
3804 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3805 mgmt_ie_buf = saved_ie->probe_req_ie;
3806 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3807 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3808 break;
3809 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3810 mgmt_ie_buf = saved_ie->probe_res_ie;
3811 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3812 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3813 break;
3814 case BRCMF_VNDR_IE_BEACON_FLAG:
3815 mgmt_ie_buf = saved_ie->beacon_ie;
3816 mgmt_ie_len = &saved_ie->beacon_ie_len;
3817 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3818 break;
3819 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3820 mgmt_ie_buf = saved_ie->assoc_req_ie;
3821 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3822 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3823 break;
3824 default:
3825 err = -EPERM;
3826 brcmf_err("not suitable type\n");
3827 goto exit;
3828 }
3829
3830 if (vndr_ie_len > mgmt_ie_buf_len) {
3831 err = -ENOMEM;
3832 brcmf_err("extra IE size too big\n");
3833 goto exit;
3834 }
3835
3836 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3837 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3838 ptr = curr_ie_buf;
3839 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3840 for (i = 0; i < new_vndr_ies.count; i++) {
3841 vndrie_info = &new_vndr_ies.ie_info[i];
3842 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3843 vndrie_info->ie_len);
3844 parsed_ie_buf_len += vndrie_info->ie_len;
3845 }
3846 }
3847
3848 if (mgmt_ie_buf && *mgmt_ie_len) {
3849 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3850 (memcmp(mgmt_ie_buf, curr_ie_buf,
3851 parsed_ie_buf_len) == 0)) {
3852 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3853 goto exit;
3854 }
3855
3856 /* parse old vndr_ie */
3857 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3858
3859 /* make a command to delete old ie */
3860 for (i = 0; i < old_vndr_ies.count; i++) {
3861 vndrie_info = &old_vndr_ies.ie_info[i];
3862
3863 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3864 vndrie_info->vndrie.id,
3865 vndrie_info->vndrie.len,
3866 vndrie_info->vndrie.oui[0],
3867 vndrie_info->vndrie.oui[1],
3868 vndrie_info->vndrie.oui[2]);
3869
3870 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3871 vndrie_info->ie_ptr,
3872 vndrie_info->ie_len,
3873 "del");
3874 curr_ie_buf += del_add_ie_buf_len;
3875 total_ie_buf_len += del_add_ie_buf_len;
3876 }
3877 }
3878
3879 *mgmt_ie_len = 0;
3880 /* Add if there is any extra IE */
3881 if (mgmt_ie_buf && parsed_ie_buf_len) {
3882 ptr = mgmt_ie_buf;
3883
3884 remained_buf_len = mgmt_ie_buf_len;
3885
3886 /* make a command to add new ie */
3887 for (i = 0; i < new_vndr_ies.count; i++) {
3888 vndrie_info = &new_vndr_ies.ie_info[i];
3889
3890 /* verify remained buf size before copy data */
3891 if (remained_buf_len < (vndrie_info->vndrie.len +
3892 VNDR_IE_VSIE_OFFSET)) {
3893 brcmf_err("no space in mgmt_ie_buf: len left %d",
3894 remained_buf_len);
3895 break;
3896 }
3897 remained_buf_len -= (vndrie_info->ie_len +
3898 VNDR_IE_VSIE_OFFSET);
3899
3900 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3901 vndrie_info->vndrie.id,
3902 vndrie_info->vndrie.len,
3903 vndrie_info->vndrie.oui[0],
3904 vndrie_info->vndrie.oui[1],
3905 vndrie_info->vndrie.oui[2]);
3906
3907 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3908 vndrie_info->ie_ptr,
3909 vndrie_info->ie_len,
3910 "add");
3911
3912 /* save the parsed IE in wl struct */
3913 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3914 vndrie_info->ie_len);
3915 *mgmt_ie_len += vndrie_info->ie_len;
3916
3917 curr_ie_buf += del_add_ie_buf_len;
3918 total_ie_buf_len += del_add_ie_buf_len;
3919 }
3920 }
3921 if (total_ie_buf_len) {
3922 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3923 total_ie_buf_len);
3924 if (err)
3925 brcmf_err("vndr ie set error : %d\n", err);
3926 }
3927
3928 exit:
3929 kfree(iovar_ie_buf);
3930 return err;
3931 }
3932
3933 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3934 {
3935 s32 pktflags[] = {
3936 BRCMF_VNDR_IE_PRBREQ_FLAG,
3937 BRCMF_VNDR_IE_PRBRSP_FLAG,
3938 BRCMF_VNDR_IE_BEACON_FLAG
3939 };
3940 int i;
3941
3942 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3943 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3944
3945 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3946 return 0;
3947 }
3948
3949 static s32
3950 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3951 struct cfg80211_beacon_data *beacon)
3952 {
3953 s32 err;
3954
3955 /* Set Beacon IEs to FW */
3956 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3957 beacon->tail, beacon->tail_len);
3958 if (err) {
3959 brcmf_err("Set Beacon IE Failed\n");
3960 return err;
3961 }
3962 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3963
3964 /* Set Probe Response IEs to FW */
3965 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3966 beacon->proberesp_ies,
3967 beacon->proberesp_ies_len);
3968 if (err)
3969 brcmf_err("Set Probe Resp IE Failed\n");
3970 else
3971 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3972
3973 return err;
3974 }
3975
3976 static s32
3977 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3978 struct cfg80211_ap_settings *settings)
3979 {
3980 s32 ie_offset;
3981 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3982 struct brcmf_if *ifp = netdev_priv(ndev);
3983 const struct brcmf_tlv *ssid_ie;
3984 const struct brcmf_tlv *country_ie;
3985 struct brcmf_ssid_le ssid_le;
3986 s32 err = -EPERM;
3987 const struct brcmf_tlv *rsn_ie;
3988 const struct brcmf_vs_tlv *wpa_ie;
3989 struct brcmf_join_params join_params;
3990 enum nl80211_iftype dev_role;
3991 struct brcmf_fil_bss_enable_le bss_enable;
3992 u16 chanspec;
3993 bool mbss;
3994 int is_11d;
3995
3996 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3997 settings->chandef.chan->hw_value,
3998 settings->chandef.center_freq1, settings->chandef.width,
3999 settings->beacon_interval, settings->dtim_period);
4000 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
4001 settings->ssid, settings->ssid_len, settings->auth_type,
4002 settings->inactivity_timeout);
4003 dev_role = ifp->vif->wdev.iftype;
4004 mbss = ifp->vif->mbss;
4005
4006 /* store current 11d setting */
4007 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d);
4008 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4009 settings->beacon.tail_len,
4010 WLAN_EID_COUNTRY);
4011 is_11d = country_ie ? 1 : 0;
4012
4013 memset(&ssid_le, 0, sizeof(ssid_le));
4014 if (settings->ssid == NULL || settings->ssid_len == 0) {
4015 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
4016 ssid_ie = brcmf_parse_tlvs(
4017 (u8 *)&settings->beacon.head[ie_offset],
4018 settings->beacon.head_len - ie_offset,
4019 WLAN_EID_SSID);
4020 if (!ssid_ie)
4021 return -EINVAL;
4022
4023 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
4024 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4025 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4026 } else {
4027 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4028 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4029 }
4030
4031 if (!mbss) {
4032 brcmf_set_mpc(ifp, 0);
4033 brcmf_configure_arp_offload(ifp, false);
4034 }
4035
4036 /* find the RSN_IE */
4037 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4038 settings->beacon.tail_len, WLAN_EID_RSN);
4039
4040 /* find the WPA_IE */
4041 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4042 settings->beacon.tail_len);
4043
4044 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4045 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4046 if (wpa_ie != NULL) {
4047 /* WPA IE */
4048 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4049 if (err < 0)
4050 goto exit;
4051 } else {
4052 struct brcmf_vs_tlv *tmp_ie;
4053
4054 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4055
4056 /* RSN IE */
4057 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4058 if (err < 0)
4059 goto exit;
4060 }
4061 } else {
4062 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4063 brcmf_configure_opensecurity(ifp);
4064 }
4065
4066 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4067
4068 if (!mbss) {
4069 chanspec = chandef_to_chanspec(&cfg->d11inf,
4070 &settings->chandef);
4071 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4072 if (err < 0) {
4073 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4074 chanspec, err);
4075 goto exit;
4076 }
4077
4078 if (is_11d != ifp->vif->is_11d) {
4079 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4080 is_11d);
4081 if (err < 0) {
4082 brcmf_err("Regulatory Set Error, %d\n", err);
4083 goto exit;
4084 }
4085 }
4086 if (settings->beacon_interval) {
4087 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4088 settings->beacon_interval);
4089 if (err < 0) {
4090 brcmf_err("Beacon Interval Set Error, %d\n",
4091 err);
4092 goto exit;
4093 }
4094 }
4095 if (settings->dtim_period) {
4096 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4097 settings->dtim_period);
4098 if (err < 0) {
4099 brcmf_err("DTIM Interval Set Error, %d\n", err);
4100 goto exit;
4101 }
4102 }
4103
4104 if (dev_role == NL80211_IFTYPE_AP) {
4105 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4106 if (err < 0) {
4107 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4108 goto exit;
4109 }
4110 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4111 }
4112
4113 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4114 if (err < 0) {
4115 brcmf_err("SET INFRA error %d\n", err);
4116 goto exit;
4117 }
4118 } else if (WARN_ON(is_11d != ifp->vif->is_11d)) {
4119 /* Multiple-BSS should use same 11d configuration */
4120 err = -EINVAL;
4121 goto exit;
4122 }
4123 if (dev_role == NL80211_IFTYPE_AP) {
4124 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4125 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4126
4127 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4128 if (err < 0) {
4129 brcmf_err("setting AP mode failed %d\n", err);
4130 goto exit;
4131 }
4132 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4133 if (err < 0) {
4134 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4135 goto exit;
4136 }
4137 /* On DOWN the firmware removes the WEP keys, reconfigure
4138 * them if they were set.
4139 */
4140 brcmf_cfg80211_reconfigure_wep(ifp);
4141
4142 memset(&join_params, 0, sizeof(join_params));
4143 /* join parameters starts with ssid */
4144 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4145 /* create softap */
4146 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4147 &join_params, sizeof(join_params));
4148 if (err < 0) {
4149 brcmf_err("SET SSID error (%d)\n", err);
4150 goto exit;
4151 }
4152 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4153 } else {
4154 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4155 sizeof(ssid_le));
4156 if (err < 0) {
4157 brcmf_err("setting ssid failed %d\n", err);
4158 goto exit;
4159 }
4160 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4161 bss_enable.enable = cpu_to_le32(1);
4162 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4163 sizeof(bss_enable));
4164 if (err < 0) {
4165 brcmf_err("bss_enable config failed %d\n", err);
4166 goto exit;
4167 }
4168
4169 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4170 }
4171 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4172 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4173
4174 exit:
4175 if ((err) && (!mbss)) {
4176 brcmf_set_mpc(ifp, 1);
4177 brcmf_configure_arp_offload(ifp, true);
4178 }
4179 return err;
4180 }
4181
4182 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4183 {
4184 struct brcmf_if *ifp = netdev_priv(ndev);
4185 s32 err;
4186 struct brcmf_fil_bss_enable_le bss_enable;
4187 struct brcmf_join_params join_params;
4188
4189 brcmf_dbg(TRACE, "Enter\n");
4190
4191 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4192 /* Due to most likely deauths outstanding we sleep */
4193 /* first to make sure they get processed by fw. */
4194 msleep(400);
4195
4196 if (ifp->vif->mbss) {
4197 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4198 return err;
4199 }
4200
4201 memset(&join_params, 0, sizeof(join_params));
4202 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4203 &join_params, sizeof(join_params));
4204 if (err < 0)
4205 brcmf_err("SET SSID error (%d)\n", err);
4206 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4207 if (err < 0)
4208 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4209 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4210 if (err < 0)
4211 brcmf_err("setting AP mode failed %d\n", err);
4212 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4213 if (err < 0)
4214 brcmf_err("setting INFRA mode failed %d\n", err);
4215 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4216 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4217 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4218 ifp->vif->is_11d);
4219 if (err < 0)
4220 brcmf_err("restoring REGULATORY setting failed %d\n",
4221 err);
4222 /* Bring device back up so it can be used again */
4223 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4224 if (err < 0)
4225 brcmf_err("BRCMF_C_UP error %d\n", err);
4226 } else {
4227 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4228 bss_enable.enable = cpu_to_le32(0);
4229 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4230 sizeof(bss_enable));
4231 if (err < 0)
4232 brcmf_err("bss_enable config failed %d\n", err);
4233 }
4234 brcmf_set_mpc(ifp, 1);
4235 brcmf_configure_arp_offload(ifp, true);
4236 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4237 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4238
4239 return err;
4240 }
4241
4242 static s32
4243 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4244 struct cfg80211_beacon_data *info)
4245 {
4246 struct brcmf_if *ifp = netdev_priv(ndev);
4247 s32 err;
4248
4249 brcmf_dbg(TRACE, "Enter\n");
4250
4251 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4252
4253 return err;
4254 }
4255
4256 static int
4257 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4258 struct station_del_parameters *params)
4259 {
4260 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4261 struct brcmf_scb_val_le scbval;
4262 struct brcmf_if *ifp = netdev_priv(ndev);
4263 s32 err;
4264
4265 if (!params->mac)
4266 return -EFAULT;
4267
4268 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4269
4270 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4271 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4272 if (!check_vif_up(ifp->vif))
4273 return -EIO;
4274
4275 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4276 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4277 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4278 &scbval, sizeof(scbval));
4279 if (err)
4280 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4281
4282 brcmf_dbg(TRACE, "Exit\n");
4283 return err;
4284 }
4285
4286 static int
4287 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev,
4288 const u8 *mac, struct station_parameters *params)
4289 {
4290 struct brcmf_if *ifp = netdev_priv(ndev);
4291 s32 err;
4292
4293 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac,
4294 params->sta_flags_mask, params->sta_flags_set);
4295
4296 /* Ignore all 00 MAC */
4297 if (is_zero_ether_addr(mac))
4298 return 0;
4299
4300 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4301 return 0;
4302
4303 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4304 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE,
4305 (void *)mac, ETH_ALEN);
4306 else
4307 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE,
4308 (void *)mac, ETH_ALEN);
4309 if (err < 0)
4310 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err);
4311
4312 return err;
4313 }
4314
4315 static void
4316 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4317 struct wireless_dev *wdev,
4318 u16 frame_type, bool reg)
4319 {
4320 struct brcmf_cfg80211_vif *vif;
4321 u16 mgmt_type;
4322
4323 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4324
4325 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4326 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4327 if (reg)
4328 vif->mgmt_rx_reg |= BIT(mgmt_type);
4329 else
4330 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4331 }
4332
4333
4334 static int
4335 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4336 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4337 {
4338 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4339 struct ieee80211_channel *chan = params->chan;
4340 const u8 *buf = params->buf;
4341 size_t len = params->len;
4342 const struct ieee80211_mgmt *mgmt;
4343 struct brcmf_cfg80211_vif *vif;
4344 s32 err = 0;
4345 s32 ie_offset;
4346 s32 ie_len;
4347 struct brcmf_fil_action_frame_le *action_frame;
4348 struct brcmf_fil_af_params_le *af_params;
4349 bool ack;
4350 s32 chan_nr;
4351 u32 freq;
4352
4353 brcmf_dbg(TRACE, "Enter\n");
4354
4355 *cookie = 0;
4356
4357 mgmt = (const struct ieee80211_mgmt *)buf;
4358
4359 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4360 brcmf_err("Driver only allows MGMT packet type\n");
4361 return -EPERM;
4362 }
4363
4364 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4365
4366 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4367 /* Right now the only reason to get a probe response */
4368 /* is for p2p listen response or for p2p GO from */
4369 /* wpa_supplicant. Unfortunately the probe is send */
4370 /* on primary ndev, while dongle wants it on the p2p */
4371 /* vif. Since this is only reason for a probe */
4372 /* response to be sent, the vif is taken from cfg. */
4373 /* If ever desired to send proberesp for non p2p */
4374 /* response then data should be checked for */
4375 /* "DIRECT-". Note in future supplicant will take */
4376 /* dedicated p2p wdev to do this and then this 'hack'*/
4377 /* is not needed anymore. */
4378 ie_offset = DOT11_MGMT_HDR_LEN +
4379 DOT11_BCN_PRB_FIXED_LEN;
4380 ie_len = len - ie_offset;
4381 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4382 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4383 err = brcmf_vif_set_mgmt_ie(vif,
4384 BRCMF_VNDR_IE_PRBRSP_FLAG,
4385 &buf[ie_offset],
4386 ie_len);
4387 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4388 GFP_KERNEL);
4389 } else if (ieee80211_is_action(mgmt->frame_control)) {
4390 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4391 if (af_params == NULL) {
4392 brcmf_err("unable to allocate frame\n");
4393 err = -ENOMEM;
4394 goto exit;
4395 }
4396 action_frame = &af_params->action_frame;
4397 /* Add the packet Id */
4398 action_frame->packet_id = cpu_to_le32(*cookie);
4399 /* Add BSSID */
4400 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4401 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4402 /* Add the length exepted for 802.11 header */
4403 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4404 /* Add the channel. Use the one specified as parameter if any or
4405 * the current one (got from the firmware) otherwise
4406 */
4407 if (chan)
4408 freq = chan->center_freq;
4409 else
4410 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4411 &freq);
4412 chan_nr = ieee80211_frequency_to_channel(freq);
4413 af_params->channel = cpu_to_le32(chan_nr);
4414
4415 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4416 le16_to_cpu(action_frame->len));
4417
4418 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4419 *cookie, le16_to_cpu(action_frame->len), freq);
4420
4421 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4422 af_params);
4423
4424 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4425 GFP_KERNEL);
4426 kfree(af_params);
4427 } else {
4428 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4429 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4430 }
4431
4432 exit:
4433 return err;
4434 }
4435
4436
4437 static int
4438 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4439 struct wireless_dev *wdev,
4440 u64 cookie)
4441 {
4442 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4443 struct brcmf_cfg80211_vif *vif;
4444 int err = 0;
4445
4446 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4447
4448 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4449 if (vif == NULL) {
4450 brcmf_err("No p2p device available for probe response\n");
4451 err = -ENODEV;
4452 goto exit;
4453 }
4454 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4455 exit:
4456 return err;
4457 }
4458
4459 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4460 struct wireless_dev *wdev,
4461 enum nl80211_crit_proto_id proto,
4462 u16 duration)
4463 {
4464 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4465 struct brcmf_cfg80211_vif *vif;
4466
4467 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4468
4469 /* only DHCP support for now */
4470 if (proto != NL80211_CRIT_PROTO_DHCP)
4471 return -EINVAL;
4472
4473 /* suppress and abort scanning */
4474 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4475 brcmf_abort_scanning(cfg);
4476
4477 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4478 }
4479
4480 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4481 struct wireless_dev *wdev)
4482 {
4483 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4484 struct brcmf_cfg80211_vif *vif;
4485
4486 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4487
4488 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4489 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4490 }
4491
4492 static s32
4493 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4494 const struct brcmf_event_msg *e, void *data)
4495 {
4496 switch (e->reason) {
4497 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4498 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4499 break;
4500 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4501 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4502 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4503 break;
4504 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4505 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4506 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4507 break;
4508 }
4509
4510 return 0;
4511 }
4512
4513 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4514 {
4515 int ret;
4516
4517 switch (oper) {
4518 case NL80211_TDLS_DISCOVERY_REQ:
4519 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4520 break;
4521 case NL80211_TDLS_SETUP:
4522 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4523 break;
4524 case NL80211_TDLS_TEARDOWN:
4525 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4526 break;
4527 default:
4528 brcmf_err("unsupported operation: %d\n", oper);
4529 ret = -EOPNOTSUPP;
4530 }
4531 return ret;
4532 }
4533
4534 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4535 struct net_device *ndev, const u8 *peer,
4536 enum nl80211_tdls_operation oper)
4537 {
4538 struct brcmf_if *ifp;
4539 struct brcmf_tdls_iovar_le info;
4540 int ret = 0;
4541
4542 ret = brcmf_convert_nl80211_tdls_oper(oper);
4543 if (ret < 0)
4544 return ret;
4545
4546 ifp = netdev_priv(ndev);
4547 memset(&info, 0, sizeof(info));
4548 info.mode = (u8)ret;
4549 if (peer)
4550 memcpy(info.ea, peer, ETH_ALEN);
4551
4552 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4553 &info, sizeof(info));
4554 if (ret < 0)
4555 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4556
4557 return ret;
4558 }
4559
4560 static struct cfg80211_ops wl_cfg80211_ops = {
4561 .add_virtual_intf = brcmf_cfg80211_add_iface,
4562 .del_virtual_intf = brcmf_cfg80211_del_iface,
4563 .change_virtual_intf = brcmf_cfg80211_change_iface,
4564 .scan = brcmf_cfg80211_scan,
4565 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4566 .join_ibss = brcmf_cfg80211_join_ibss,
4567 .leave_ibss = brcmf_cfg80211_leave_ibss,
4568 .get_station = brcmf_cfg80211_get_station,
4569 .set_tx_power = brcmf_cfg80211_set_tx_power,
4570 .get_tx_power = brcmf_cfg80211_get_tx_power,
4571 .add_key = brcmf_cfg80211_add_key,
4572 .del_key = brcmf_cfg80211_del_key,
4573 .get_key = brcmf_cfg80211_get_key,
4574 .set_default_key = brcmf_cfg80211_config_default_key,
4575 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4576 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4577 .connect = brcmf_cfg80211_connect,
4578 .disconnect = brcmf_cfg80211_disconnect,
4579 .suspend = brcmf_cfg80211_suspend,
4580 .resume = brcmf_cfg80211_resume,
4581 .set_pmksa = brcmf_cfg80211_set_pmksa,
4582 .del_pmksa = brcmf_cfg80211_del_pmksa,
4583 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4584 .start_ap = brcmf_cfg80211_start_ap,
4585 .stop_ap = brcmf_cfg80211_stop_ap,
4586 .change_beacon = brcmf_cfg80211_change_beacon,
4587 .del_station = brcmf_cfg80211_del_station,
4588 .change_station = brcmf_cfg80211_change_station,
4589 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4590 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4591 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4592 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4593 .remain_on_channel = brcmf_p2p_remain_on_channel,
4594 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4595 .start_p2p_device = brcmf_p2p_start_device,
4596 .stop_p2p_device = brcmf_p2p_stop_device,
4597 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4598 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4599 .tdls_oper = brcmf_cfg80211_tdls_oper,
4600 };
4601
4602 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4603 enum nl80211_iftype type,
4604 bool pm_block)
4605 {
4606 struct brcmf_cfg80211_vif *vif_walk;
4607 struct brcmf_cfg80211_vif *vif;
4608 bool mbss;
4609
4610 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4611 sizeof(*vif));
4612 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4613 if (!vif)
4614 return ERR_PTR(-ENOMEM);
4615
4616 vif->wdev.wiphy = cfg->wiphy;
4617 vif->wdev.iftype = type;
4618
4619 vif->pm_block = pm_block;
4620 vif->roam_off = -1;
4621
4622 brcmf_init_prof(&vif->profile);
4623
4624 if (type == NL80211_IFTYPE_AP) {
4625 mbss = false;
4626 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
4627 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
4628 mbss = true;
4629 break;
4630 }
4631 }
4632 vif->mbss = mbss;
4633 }
4634
4635 list_add_tail(&vif->list, &cfg->vif_list);
4636 return vif;
4637 }
4638
4639 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4640 {
4641 list_del(&vif->list);
4642 kfree(vif);
4643 }
4644
4645 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4646 {
4647 struct brcmf_cfg80211_vif *vif;
4648 struct brcmf_if *ifp;
4649
4650 ifp = netdev_priv(ndev);
4651 vif = ifp->vif;
4652
4653 brcmf_free_vif(vif);
4654 free_netdev(ndev);
4655 }
4656
4657 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4658 {
4659 u32 event = e->event_code;
4660 u32 status = e->status;
4661
4662 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4663 brcmf_dbg(CONN, "Processing set ssid\n");
4664 return true;
4665 }
4666
4667 return false;
4668 }
4669
4670 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4671 {
4672 u32 event = e->event_code;
4673 u16 flags = e->flags;
4674
4675 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4676 (event == BRCMF_E_DISASSOC_IND) ||
4677 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4678 brcmf_dbg(CONN, "Processing link down\n");
4679 return true;
4680 }
4681 return false;
4682 }
4683
4684 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4685 const struct brcmf_event_msg *e)
4686 {
4687 u32 event = e->event_code;
4688 u32 status = e->status;
4689
4690 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4691 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4692 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4693 return true;
4694 }
4695
4696 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4697 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4698 return true;
4699 }
4700
4701 return false;
4702 }
4703
4704 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4705 {
4706 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4707
4708 kfree(conn_info->req_ie);
4709 conn_info->req_ie = NULL;
4710 conn_info->req_ie_len = 0;
4711 kfree(conn_info->resp_ie);
4712 conn_info->resp_ie = NULL;
4713 conn_info->resp_ie_len = 0;
4714 }
4715
4716 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4717 struct brcmf_if *ifp)
4718 {
4719 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4720 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4721 u32 req_len;
4722 u32 resp_len;
4723 s32 err = 0;
4724
4725 brcmf_clear_assoc_ies(cfg);
4726
4727 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4728 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4729 if (err) {
4730 brcmf_err("could not get assoc info (%d)\n", err);
4731 return err;
4732 }
4733 assoc_info =
4734 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4735 req_len = le32_to_cpu(assoc_info->req_len);
4736 resp_len = le32_to_cpu(assoc_info->resp_len);
4737 if (req_len) {
4738 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4739 cfg->extra_buf,
4740 WL_ASSOC_INFO_MAX);
4741 if (err) {
4742 brcmf_err("could not get assoc req (%d)\n", err);
4743 return err;
4744 }
4745 conn_info->req_ie_len = req_len;
4746 conn_info->req_ie =
4747 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4748 GFP_KERNEL);
4749 } else {
4750 conn_info->req_ie_len = 0;
4751 conn_info->req_ie = NULL;
4752 }
4753 if (resp_len) {
4754 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4755 cfg->extra_buf,
4756 WL_ASSOC_INFO_MAX);
4757 if (err) {
4758 brcmf_err("could not get assoc resp (%d)\n", err);
4759 return err;
4760 }
4761 conn_info->resp_ie_len = resp_len;
4762 conn_info->resp_ie =
4763 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4764 GFP_KERNEL);
4765 } else {
4766 conn_info->resp_ie_len = 0;
4767 conn_info->resp_ie = NULL;
4768 }
4769 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4770 conn_info->req_ie_len, conn_info->resp_ie_len);
4771
4772 return err;
4773 }
4774
4775 static s32
4776 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4777 struct net_device *ndev,
4778 const struct brcmf_event_msg *e)
4779 {
4780 struct brcmf_if *ifp = netdev_priv(ndev);
4781 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4782 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4783 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4784 struct ieee80211_channel *notify_channel = NULL;
4785 struct ieee80211_supported_band *band;
4786 struct brcmf_bss_info_le *bi;
4787 struct brcmu_chan ch;
4788 u32 freq;
4789 s32 err = 0;
4790 u8 *buf;
4791
4792 brcmf_dbg(TRACE, "Enter\n");
4793
4794 brcmf_get_assoc_ies(cfg, ifp);
4795 memcpy(profile->bssid, e->addr, ETH_ALEN);
4796 brcmf_update_bss_info(cfg, ifp);
4797
4798 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4799 if (buf == NULL) {
4800 err = -ENOMEM;
4801 goto done;
4802 }
4803
4804 /* data sent to dongle has to be little endian */
4805 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4806 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4807 buf, WL_BSS_INFO_MAX);
4808
4809 if (err)
4810 goto done;
4811
4812 bi = (struct brcmf_bss_info_le *)(buf + 4);
4813 ch.chspec = le16_to_cpu(bi->chanspec);
4814 cfg->d11inf.decchspec(&ch);
4815
4816 if (ch.band == BRCMU_CHAN_BAND_2G)
4817 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4818 else
4819 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4820
4821 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4822 notify_channel = ieee80211_get_channel(wiphy, freq);
4823
4824 done:
4825 kfree(buf);
4826 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4827 conn_info->req_ie, conn_info->req_ie_len,
4828 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4829 brcmf_dbg(CONN, "Report roaming result\n");
4830
4831 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4832 brcmf_dbg(TRACE, "Exit\n");
4833 return err;
4834 }
4835
4836 static s32
4837 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4838 struct net_device *ndev, const struct brcmf_event_msg *e,
4839 bool completed)
4840 {
4841 struct brcmf_if *ifp = netdev_priv(ndev);
4842 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4843 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4844
4845 brcmf_dbg(TRACE, "Enter\n");
4846
4847 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4848 &ifp->vif->sme_state)) {
4849 if (completed) {
4850 brcmf_get_assoc_ies(cfg, ifp);
4851 memcpy(profile->bssid, e->addr, ETH_ALEN);
4852 brcmf_update_bss_info(cfg, ifp);
4853 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4854 &ifp->vif->sme_state);
4855 }
4856 cfg80211_connect_result(ndev,
4857 (u8 *)profile->bssid,
4858 conn_info->req_ie,
4859 conn_info->req_ie_len,
4860 conn_info->resp_ie,
4861 conn_info->resp_ie_len,
4862 completed ? WLAN_STATUS_SUCCESS :
4863 WLAN_STATUS_AUTH_TIMEOUT,
4864 GFP_KERNEL);
4865 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4866 completed ? "succeeded" : "failed");
4867 }
4868 brcmf_dbg(TRACE, "Exit\n");
4869 return 0;
4870 }
4871
4872 static s32
4873 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4874 struct net_device *ndev,
4875 const struct brcmf_event_msg *e, void *data)
4876 {
4877 struct brcmf_if *ifp = netdev_priv(ndev);
4878 static int generation;
4879 u32 event = e->event_code;
4880 u32 reason = e->reason;
4881 struct station_info sinfo;
4882
4883 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4884 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4885 ndev != cfg_to_ndev(cfg)) {
4886 brcmf_dbg(CONN, "AP mode link down\n");
4887 complete(&cfg->vif_disabled);
4888 if (ifp->vif->mbss)
4889 brcmf_remove_interface(ifp->drvr, ifp->bssidx);
4890 return 0;
4891 }
4892
4893 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4894 (reason == BRCMF_E_STATUS_SUCCESS)) {
4895 memset(&sinfo, 0, sizeof(sinfo));
4896 if (!data) {
4897 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4898 return -EINVAL;
4899 }
4900 sinfo.assoc_req_ies = data;
4901 sinfo.assoc_req_ies_len = e->datalen;
4902 generation++;
4903 sinfo.generation = generation;
4904 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4905 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4906 (event == BRCMF_E_DEAUTH_IND) ||
4907 (event == BRCMF_E_DEAUTH)) {
4908 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4909 }
4910 return 0;
4911 }
4912
4913 static s32
4914 brcmf_notify_connect_status(struct brcmf_if *ifp,
4915 const struct brcmf_event_msg *e, void *data)
4916 {
4917 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4918 struct net_device *ndev = ifp->ndev;
4919 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4920 struct ieee80211_channel *chan;
4921 s32 err = 0;
4922
4923 if ((e->event_code == BRCMF_E_DEAUTH) ||
4924 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4925 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4926 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4927 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4928 }
4929
4930 if (brcmf_is_apmode(ifp->vif)) {
4931 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4932 } else if (brcmf_is_linkup(e)) {
4933 brcmf_dbg(CONN, "Linkup\n");
4934 if (brcmf_is_ibssmode(ifp->vif)) {
4935 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4936 memcpy(profile->bssid, e->addr, ETH_ALEN);
4937 wl_inform_ibss(cfg, ndev, e->addr);
4938 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4939 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4940 &ifp->vif->sme_state);
4941 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4942 &ifp->vif->sme_state);
4943 } else
4944 brcmf_bss_connect_done(cfg, ndev, e, true);
4945 } else if (brcmf_is_linkdown(e)) {
4946 brcmf_dbg(CONN, "Linkdown\n");
4947 if (!brcmf_is_ibssmode(ifp->vif)) {
4948 brcmf_bss_connect_done(cfg, ndev, e, false);
4949 }
4950 brcmf_link_down(ifp->vif, brcmf_map_fw_linkdown_reason(e));
4951 brcmf_init_prof(ndev_to_prof(ndev));
4952 if (ndev != cfg_to_ndev(cfg))
4953 complete(&cfg->vif_disabled);
4954 } else if (brcmf_is_nonetwork(cfg, e)) {
4955 if (brcmf_is_ibssmode(ifp->vif))
4956 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4957 &ifp->vif->sme_state);
4958 else
4959 brcmf_bss_connect_done(cfg, ndev, e, false);
4960 }
4961
4962 return err;
4963 }
4964
4965 static s32
4966 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4967 const struct brcmf_event_msg *e, void *data)
4968 {
4969 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4970 u32 event = e->event_code;
4971 u32 status = e->status;
4972
4973 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4974 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4975 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4976 else
4977 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4978 }
4979
4980 return 0;
4981 }
4982
4983 static s32
4984 brcmf_notify_mic_status(struct brcmf_if *ifp,
4985 const struct brcmf_event_msg *e, void *data)
4986 {
4987 u16 flags = e->flags;
4988 enum nl80211_key_type key_type;
4989
4990 if (flags & BRCMF_EVENT_MSG_GROUP)
4991 key_type = NL80211_KEYTYPE_GROUP;
4992 else
4993 key_type = NL80211_KEYTYPE_PAIRWISE;
4994
4995 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4996 NULL, GFP_KERNEL);
4997
4998 return 0;
4999 }
5000
5001 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
5002 const struct brcmf_event_msg *e, void *data)
5003 {
5004 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5005 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
5006 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5007 struct brcmf_cfg80211_vif *vif;
5008
5009 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
5010 ifevent->action, ifevent->flags, ifevent->ifidx,
5011 ifevent->bssidx);
5012
5013 mutex_lock(&event->vif_event_lock);
5014 event->action = ifevent->action;
5015 vif = event->vif;
5016
5017 switch (ifevent->action) {
5018 case BRCMF_E_IF_ADD:
5019 /* waiting process may have timed out */
5020 if (!cfg->vif_event.vif) {
5021 mutex_unlock(&event->vif_event_lock);
5022 return -EBADF;
5023 }
5024
5025 ifp->vif = vif;
5026 vif->ifp = ifp;
5027 if (ifp->ndev) {
5028 vif->wdev.netdev = ifp->ndev;
5029 ifp->ndev->ieee80211_ptr = &vif->wdev;
5030 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
5031 }
5032 mutex_unlock(&event->vif_event_lock);
5033 wake_up(&event->vif_wq);
5034 return 0;
5035
5036 case BRCMF_E_IF_DEL:
5037 mutex_unlock(&event->vif_event_lock);
5038 /* event may not be upon user request */
5039 if (brcmf_cfg80211_vif_event_armed(cfg))
5040 wake_up(&event->vif_wq);
5041 return 0;
5042
5043 case BRCMF_E_IF_CHANGE:
5044 mutex_unlock(&event->vif_event_lock);
5045 wake_up(&event->vif_wq);
5046 return 0;
5047
5048 default:
5049 mutex_unlock(&event->vif_event_lock);
5050 break;
5051 }
5052 return -EINVAL;
5053 }
5054
5055 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
5056 {
5057 conf->frag_threshold = (u32)-1;
5058 conf->rts_threshold = (u32)-1;
5059 conf->retry_short = (u32)-1;
5060 conf->retry_long = (u32)-1;
5061 conf->tx_power = -1;
5062 }
5063
5064 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
5065 {
5066 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
5067 brcmf_notify_connect_status);
5068 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
5069 brcmf_notify_connect_status);
5070 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5071 brcmf_notify_connect_status);
5072 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5073 brcmf_notify_connect_status);
5074 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5075 brcmf_notify_connect_status);
5076 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5077 brcmf_notify_connect_status);
5078 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5079 brcmf_notify_roaming_status);
5080 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5081 brcmf_notify_mic_status);
5082 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5083 brcmf_notify_connect_status);
5084 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5085 brcmf_notify_sched_scan_results);
5086 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5087 brcmf_notify_vif_event);
5088 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5089 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5090 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5091 brcmf_p2p_notify_listen_complete);
5092 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5093 brcmf_p2p_notify_action_frame_rx);
5094 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5095 brcmf_p2p_notify_action_tx_complete);
5096 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5097 brcmf_p2p_notify_action_tx_complete);
5098 }
5099
5100 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5101 {
5102 kfree(cfg->conf);
5103 cfg->conf = NULL;
5104 kfree(cfg->escan_ioctl_buf);
5105 cfg->escan_ioctl_buf = NULL;
5106 kfree(cfg->extra_buf);
5107 cfg->extra_buf = NULL;
5108 kfree(cfg->pmk_list);
5109 cfg->pmk_list = NULL;
5110 }
5111
5112 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5113 {
5114 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5115 if (!cfg->conf)
5116 goto init_priv_mem_out;
5117 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5118 if (!cfg->escan_ioctl_buf)
5119 goto init_priv_mem_out;
5120 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5121 if (!cfg->extra_buf)
5122 goto init_priv_mem_out;
5123 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
5124 if (!cfg->pmk_list)
5125 goto init_priv_mem_out;
5126
5127 return 0;
5128
5129 init_priv_mem_out:
5130 brcmf_deinit_priv_mem(cfg);
5131
5132 return -ENOMEM;
5133 }
5134
5135 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5136 {
5137 s32 err = 0;
5138
5139 cfg->scan_request = NULL;
5140 cfg->pwr_save = true;
5141 cfg->active_scan = true; /* we do active scan per default */
5142 cfg->dongle_up = false; /* dongle is not up yet */
5143 err = brcmf_init_priv_mem(cfg);
5144 if (err)
5145 return err;
5146 brcmf_register_event_handlers(cfg);
5147 mutex_init(&cfg->usr_sync);
5148 brcmf_init_escan(cfg);
5149 brcmf_init_conf(cfg->conf);
5150 init_completion(&cfg->vif_disabled);
5151 return err;
5152 }
5153
5154 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5155 {
5156 cfg->dongle_up = false; /* dongle down */
5157 brcmf_abort_scanning(cfg);
5158 brcmf_deinit_priv_mem(cfg);
5159 }
5160
5161 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5162 {
5163 init_waitqueue_head(&event->vif_wq);
5164 mutex_init(&event->vif_event_lock);
5165 }
5166
5167 static s32
5168 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
5169 {
5170 s32 err = 0;
5171 __le32 roamtrigger[2];
5172 __le32 roam_delta[2];
5173
5174 /*
5175 * Setup timeout if Beacons are lost and roam is
5176 * off to report link down
5177 */
5178 if (brcmf_roamoff) {
5179 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5180 if (err) {
5181 brcmf_err("bcn_timeout error (%d)\n", err);
5182 goto dongle_rom_out;
5183 }
5184 }
5185
5186 /*
5187 * Enable/Disable built-in roaming to allow supplicant
5188 * to take care of roaming
5189 */
5190 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5191 brcmf_roamoff ? "Off" : "On");
5192 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
5193 if (err) {
5194 brcmf_err("roam_off error (%d)\n", err);
5195 goto dongle_rom_out;
5196 }
5197
5198 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5199 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5200 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5201 (void *)roamtrigger, sizeof(roamtrigger));
5202 if (err) {
5203 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5204 goto dongle_rom_out;
5205 }
5206
5207 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5208 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5209 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5210 (void *)roam_delta, sizeof(roam_delta));
5211 if (err) {
5212 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5213 goto dongle_rom_out;
5214 }
5215
5216 dongle_rom_out:
5217 return err;
5218 }
5219
5220 static s32
5221 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5222 s32 scan_unassoc_time, s32 scan_passive_time)
5223 {
5224 s32 err = 0;
5225
5226 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5227 scan_assoc_time);
5228 if (err) {
5229 if (err == -EOPNOTSUPP)
5230 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5231 else
5232 brcmf_err("Scan assoc time error (%d)\n", err);
5233 goto dongle_scantime_out;
5234 }
5235 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5236 scan_unassoc_time);
5237 if (err) {
5238 if (err == -EOPNOTSUPP)
5239 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5240 else
5241 brcmf_err("Scan unassoc time error (%d)\n", err);
5242 goto dongle_scantime_out;
5243 }
5244
5245 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5246 scan_passive_time);
5247 if (err) {
5248 if (err == -EOPNOTSUPP)
5249 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5250 else
5251 brcmf_err("Scan passive time error (%d)\n", err);
5252 goto dongle_scantime_out;
5253 }
5254
5255 dongle_scantime_out:
5256 return err;
5257 }
5258
5259 /* Filter the list of channels received from firmware counting only
5260 * the 20MHz channels. The wiphy band data only needs those which get
5261 * flagged to indicate if they can take part in higher bandwidth.
5262 */
5263 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5264 struct brcmf_chanspec_list *chlist,
5265 u32 chcnt[])
5266 {
5267 u32 total = le32_to_cpu(chlist->count);
5268 struct brcmu_chan ch;
5269 int i;
5270
5271 for (i = 0; i < total; i++) {
5272 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5273 cfg->d11inf.decchspec(&ch);
5274
5275 /* Firmware gives a ordered list. We skip non-20MHz
5276 * channels is 2G. For 5G we can abort upon reaching
5277 * a non-20MHz channel in the list.
5278 */
5279 if (ch.bw != BRCMU_CHAN_BW_20) {
5280 if (ch.band == BRCMU_CHAN_BAND_5G)
5281 break;
5282 else
5283 continue;
5284 }
5285
5286 if (ch.band == BRCMU_CHAN_BAND_2G)
5287 chcnt[0] += 1;
5288 else if (ch.band == BRCMU_CHAN_BAND_5G)
5289 chcnt[1] += 1;
5290 }
5291 }
5292
5293 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5294 struct brcmu_chan *ch)
5295 {
5296 u32 ht40_flag;
5297
5298 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5299 if (ch->sb == BRCMU_CHAN_SB_U) {
5300 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5301 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5302 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5303 } else {
5304 /* It should be one of
5305 * IEEE80211_CHAN_NO_HT40 or
5306 * IEEE80211_CHAN_NO_HT40PLUS
5307 */
5308 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5309 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5310 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5311 }
5312 }
5313
5314 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5315 u32 bw_cap[])
5316 {
5317 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5318 struct ieee80211_supported_band *band;
5319 struct ieee80211_channel *channel;
5320 struct wiphy *wiphy;
5321 struct brcmf_chanspec_list *list;
5322 struct brcmu_chan ch;
5323 int err;
5324 u8 *pbuf;
5325 u32 i, j;
5326 u32 total;
5327 u32 chaninfo;
5328 u32 chcnt[2] = { 0, 0 };
5329 u32 index;
5330
5331 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5332
5333 if (pbuf == NULL)
5334 return -ENOMEM;
5335
5336 list = (struct brcmf_chanspec_list *)pbuf;
5337
5338 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5339 BRCMF_DCMD_MEDLEN);
5340 if (err) {
5341 brcmf_err("get chanspecs error (%d)\n", err);
5342 goto fail_pbuf;
5343 }
5344
5345 brcmf_count_20mhz_channels(cfg, list, chcnt);
5346 wiphy = cfg_to_wiphy(cfg);
5347 if (chcnt[0]) {
5348 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5349 GFP_KERNEL);
5350 if (band == NULL) {
5351 err = -ENOMEM;
5352 goto fail_pbuf;
5353 }
5354 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5355 GFP_KERNEL);
5356 if (band->channels == NULL) {
5357 kfree(band);
5358 err = -ENOMEM;
5359 goto fail_pbuf;
5360 }
5361 band->n_channels = 0;
5362 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5363 }
5364 if (chcnt[1]) {
5365 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5366 GFP_KERNEL);
5367 if (band == NULL) {
5368 err = -ENOMEM;
5369 goto fail_band2g;
5370 }
5371 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5372 GFP_KERNEL);
5373 if (band->channels == NULL) {
5374 kfree(band);
5375 err = -ENOMEM;
5376 goto fail_band2g;
5377 }
5378 band->n_channels = 0;
5379 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5380 }
5381
5382 total = le32_to_cpu(list->count);
5383 for (i = 0; i < total; i++) {
5384 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5385 cfg->d11inf.decchspec(&ch);
5386
5387 if (ch.band == BRCMU_CHAN_BAND_2G) {
5388 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5389 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5390 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5391 } else {
5392 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5393 continue;
5394 }
5395 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5396 ch.bw == BRCMU_CHAN_BW_40)
5397 continue;
5398 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5399 ch.bw == BRCMU_CHAN_BW_80)
5400 continue;
5401
5402 channel = band->channels;
5403 index = band->n_channels;
5404 for (j = 0; j < band->n_channels; j++) {
5405 if (channel[j].hw_value == ch.chnum) {
5406 index = j;
5407 break;
5408 }
5409 }
5410 channel[index].center_freq =
5411 ieee80211_channel_to_frequency(ch.chnum, band->band);
5412 channel[index].hw_value = ch.chnum;
5413
5414 /* assuming the chanspecs order is HT20,
5415 * HT40 upper, HT40 lower, and VHT80.
5416 */
5417 if (ch.bw == BRCMU_CHAN_BW_80) {
5418 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5419 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5420 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5421 } else {
5422 /* disable other bandwidths for now as mentioned
5423 * order assure they are enabled for subsequent
5424 * chanspecs.
5425 */
5426 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5427 IEEE80211_CHAN_NO_80MHZ;
5428 ch.bw = BRCMU_CHAN_BW_20;
5429 cfg->d11inf.encchspec(&ch);
5430 chaninfo = ch.chspec;
5431 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5432 &chaninfo);
5433 if (!err) {
5434 if (chaninfo & WL_CHAN_RADAR)
5435 channel[index].flags |=
5436 (IEEE80211_CHAN_RADAR |
5437 IEEE80211_CHAN_NO_IR);
5438 if (chaninfo & WL_CHAN_PASSIVE)
5439 channel[index].flags |=
5440 IEEE80211_CHAN_NO_IR;
5441 }
5442 }
5443 if (index == band->n_channels)
5444 band->n_channels++;
5445 }
5446 kfree(pbuf);
5447 return 0;
5448
5449 fail_band2g:
5450 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5451 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5452 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5453 fail_pbuf:
5454 kfree(pbuf);
5455 return err;
5456 }
5457
5458 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5459 {
5460 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5461 struct ieee80211_supported_band *band;
5462 struct brcmf_fil_bwcap_le band_bwcap;
5463 struct brcmf_chanspec_list *list;
5464 u8 *pbuf;
5465 u32 val;
5466 int err;
5467 struct brcmu_chan ch;
5468 u32 num_chan;
5469 int i, j;
5470
5471 /* verify support for bw_cap command */
5472 val = WLC_BAND_5G;
5473 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5474
5475 if (!err) {
5476 /* only set 2G bandwidth using bw_cap command */
5477 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5478 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5479 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5480 sizeof(band_bwcap));
5481 } else {
5482 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5483 val = WLC_N_BW_40ALL;
5484 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5485 }
5486
5487 if (!err) {
5488 /* update channel info in 2G band */
5489 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5490
5491 if (pbuf == NULL)
5492 return -ENOMEM;
5493
5494 ch.band = BRCMU_CHAN_BAND_2G;
5495 ch.bw = BRCMU_CHAN_BW_40;
5496 ch.sb = BRCMU_CHAN_SB_NONE;
5497 ch.chnum = 0;
5498 cfg->d11inf.encchspec(&ch);
5499
5500 /* pass encoded chanspec in query */
5501 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5502
5503 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5504 BRCMF_DCMD_MEDLEN);
5505 if (err) {
5506 brcmf_err("get chanspecs error (%d)\n", err);
5507 kfree(pbuf);
5508 return err;
5509 }
5510
5511 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5512 list = (struct brcmf_chanspec_list *)pbuf;
5513 num_chan = le32_to_cpu(list->count);
5514 for (i = 0; i < num_chan; i++) {
5515 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5516 cfg->d11inf.decchspec(&ch);
5517 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5518 continue;
5519 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5520 continue;
5521 for (j = 0; j < band->n_channels; j++) {
5522 if (band->channels[j].hw_value == ch.chnum)
5523 break;
5524 }
5525 if (WARN_ON(j == band->n_channels))
5526 continue;
5527
5528 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5529 }
5530 kfree(pbuf);
5531 }
5532 return err;
5533 }
5534
5535 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5536 {
5537 u32 band, mimo_bwcap;
5538 int err;
5539
5540 band = WLC_BAND_2G;
5541 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5542 if (!err) {
5543 bw_cap[IEEE80211_BAND_2GHZ] = band;
5544 band = WLC_BAND_5G;
5545 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5546 if (!err) {
5547 bw_cap[IEEE80211_BAND_5GHZ] = band;
5548 return;
5549 }
5550 WARN_ON(1);
5551 return;
5552 }
5553 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5554 mimo_bwcap = 0;
5555 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5556 if (err)
5557 /* assume 20MHz if firmware does not give a clue */
5558 mimo_bwcap = WLC_N_BW_20ALL;
5559
5560 switch (mimo_bwcap) {
5561 case WLC_N_BW_40ALL:
5562 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5563 /* fall-thru */
5564 case WLC_N_BW_20IN2G_40IN5G:
5565 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5566 /* fall-thru */
5567 case WLC_N_BW_20ALL:
5568 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5569 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5570 break;
5571 default:
5572 brcmf_err("invalid mimo_bw_cap value\n");
5573 }
5574 }
5575
5576 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5577 u32 bw_cap[2], u32 nchain)
5578 {
5579 band->ht_cap.ht_supported = true;
5580 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5581 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5582 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5583 }
5584 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5585 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5586 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5587 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5588 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5589 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5590 }
5591
5592 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5593 {
5594 u16 mcs_map;
5595 int i;
5596
5597 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5598 mcs_map = (mcs_map << 2) | supp;
5599
5600 return cpu_to_le16(mcs_map);
5601 }
5602
5603 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5604 u32 bw_cap[2], u32 nchain)
5605 {
5606 __le16 mcs_map;
5607
5608 /* not allowed in 2.4G band */
5609 if (band->band == IEEE80211_BAND_2GHZ)
5610 return;
5611
5612 band->vht_cap.vht_supported = true;
5613 /* 80MHz is mandatory */
5614 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5615 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5616 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5617 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5618 }
5619 /* all support 256-QAM */
5620 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5621 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5622 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5623 }
5624
5625 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5626 {
5627 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5628 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5629 u32 nmode = 0;
5630 u32 vhtmode = 0;
5631 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5632 u32 rxchain;
5633 u32 nchain;
5634 int err;
5635 s32 i;
5636 struct ieee80211_supported_band *band;
5637
5638 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5639 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5640 if (err) {
5641 brcmf_err("nmode error (%d)\n", err);
5642 } else {
5643 brcmf_get_bwcap(ifp, bw_cap);
5644 }
5645 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5646 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5647 bw_cap[IEEE80211_BAND_5GHZ]);
5648
5649 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5650 if (err) {
5651 brcmf_err("rxchain error (%d)\n", err);
5652 nchain = 1;
5653 } else {
5654 for (nchain = 0; rxchain; nchain++)
5655 rxchain = rxchain & (rxchain - 1);
5656 }
5657 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5658
5659 err = brcmf_construct_chaninfo(cfg, bw_cap);
5660 if (err) {
5661 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5662 return err;
5663 }
5664
5665 wiphy = cfg_to_wiphy(cfg);
5666 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5667 band = wiphy->bands[i];
5668 if (band == NULL)
5669 continue;
5670
5671 if (nmode)
5672 brcmf_update_ht_cap(band, bw_cap, nchain);
5673 if (vhtmode)
5674 brcmf_update_vht_cap(band, bw_cap, nchain);
5675 }
5676
5677 return 0;
5678 }
5679
5680 static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
5681 {
5682 .max = 1,
5683 .types = BIT(NL80211_IFTYPE_STATION) |
5684 BIT(NL80211_IFTYPE_ADHOC)
5685 },
5686 {
5687 .max = 4,
5688 .types = BIT(NL80211_IFTYPE_AP)
5689 },
5690 {
5691 .max = 1,
5692 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5693 BIT(NL80211_IFTYPE_P2P_GO)
5694 },
5695 {
5696 .max = 1,
5697 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5698 }
5699 };
5700
5701 static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
5702 {
5703 .max = 2,
5704 .types = BIT(NL80211_IFTYPE_STATION) |
5705 BIT(NL80211_IFTYPE_ADHOC) |
5706 BIT(NL80211_IFTYPE_AP)
5707 },
5708 {
5709 .max = 1,
5710 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5711 BIT(NL80211_IFTYPE_P2P_GO)
5712 },
5713 {
5714 .max = 1,
5715 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5716 }
5717 };
5718 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5719 {
5720 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5721 .num_different_channels = 1,
5722 .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
5723 .limits = brcmf_iface_limits_sbss,
5724 }
5725 };
5726
5727 static const struct ieee80211_txrx_stypes
5728 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5729 [NL80211_IFTYPE_STATION] = {
5730 .tx = 0xffff,
5731 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5732 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5733 },
5734 [NL80211_IFTYPE_P2P_CLIENT] = {
5735 .tx = 0xffff,
5736 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5737 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5738 },
5739 [NL80211_IFTYPE_P2P_GO] = {
5740 .tx = 0xffff,
5741 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5742 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5743 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5744 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5745 BIT(IEEE80211_STYPE_AUTH >> 4) |
5746 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5747 BIT(IEEE80211_STYPE_ACTION >> 4)
5748 },
5749 [NL80211_IFTYPE_P2P_DEVICE] = {
5750 .tx = 0xffff,
5751 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5752 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5753 }
5754 };
5755
5756 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5757 {
5758 /* scheduled scan settings */
5759 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5760 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5761 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5762 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5763 }
5764
5765 #ifdef CONFIG_PM
5766 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5767 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5768 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5769 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5770 .pattern_min_len = 1,
5771 .max_pkt_offset = 1500,
5772 };
5773 #endif
5774
5775 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5776 {
5777 #ifdef CONFIG_PM
5778 /* wowl settings */
5779 wiphy->wowlan = &brcmf_wowlan_support;
5780 #endif
5781 }
5782
5783 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5784 {
5785 struct ieee80211_iface_combination ifc_combo;
5786 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5787 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5788 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5789 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5790 BIT(NL80211_IFTYPE_ADHOC) |
5791 BIT(NL80211_IFTYPE_AP) |
5792 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5793 BIT(NL80211_IFTYPE_P2P_GO) |
5794 BIT(NL80211_IFTYPE_P2P_DEVICE);
5795 /* need VSDB firmware feature for concurrent channels */
5796 ifc_combo = brcmf_iface_combos[0];
5797 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5798 ifc_combo.num_different_channels = 2;
5799 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
5800 ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
5801 ifc_combo.limits = brcmf_iface_limits_mbss;
5802 }
5803 wiphy->iface_combinations = kmemdup(&ifc_combo,
5804 sizeof(ifc_combo),
5805 GFP_KERNEL);
5806 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5807 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5808 wiphy->cipher_suites = __wl_cipher_suites;
5809 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5810 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5811 WIPHY_FLAG_OFFCHAN_TX |
5812 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5813 WIPHY_FLAG_SUPPORTS_TDLS;
5814 if (!brcmf_roamoff)
5815 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5816 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5817 wiphy->max_remain_on_channel_duration = 5000;
5818 brcmf_wiphy_pno_params(wiphy);
5819
5820 /* vendor commands/events support */
5821 wiphy->vendor_commands = brcmf_vendor_cmds;
5822 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5823
5824 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5825 brcmf_wiphy_wowl_params(wiphy);
5826
5827 return brcmf_setup_wiphybands(wiphy);
5828 }
5829
5830 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5831 {
5832 struct net_device *ndev;
5833 struct wireless_dev *wdev;
5834 struct brcmf_if *ifp;
5835 s32 power_mode;
5836 s32 err = 0;
5837
5838 if (cfg->dongle_up)
5839 return err;
5840
5841 ndev = cfg_to_ndev(cfg);
5842 wdev = ndev->ieee80211_ptr;
5843 ifp = netdev_priv(ndev);
5844
5845 /* make sure RF is ready for work */
5846 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5847
5848 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5849 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5850
5851 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5852 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5853 if (err)
5854 goto default_conf_out;
5855 brcmf_dbg(INFO, "power save set to %s\n",
5856 (power_mode ? "enabled" : "disabled"));
5857
5858 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5859 if (err)
5860 goto default_conf_out;
5861 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5862 NULL, NULL);
5863 if (err)
5864 goto default_conf_out;
5865
5866 brcmf_configure_arp_offload(ifp, true);
5867
5868 cfg->dongle_up = true;
5869 default_conf_out:
5870
5871 return err;
5872
5873 }
5874
5875 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5876 {
5877 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5878
5879 return brcmf_config_dongle(ifp->drvr->config);
5880 }
5881
5882 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5883 {
5884 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5885
5886 /*
5887 * While going down, if associated with AP disassociate
5888 * from AP to save power
5889 */
5890 if (check_vif_up(ifp->vif)) {
5891 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED);
5892
5893 /* Make sure WPA_Supplicant receives all the event
5894 generated due to DISASSOC call to the fw to keep
5895 the state fw and WPA_Supplicant state consistent
5896 */
5897 brcmf_delay(500);
5898 }
5899
5900 brcmf_abort_scanning(cfg);
5901 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5902
5903 return 0;
5904 }
5905
5906 s32 brcmf_cfg80211_up(struct net_device *ndev)
5907 {
5908 struct brcmf_if *ifp = netdev_priv(ndev);
5909 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5910 s32 err = 0;
5911
5912 mutex_lock(&cfg->usr_sync);
5913 err = __brcmf_cfg80211_up(ifp);
5914 mutex_unlock(&cfg->usr_sync);
5915
5916 return err;
5917 }
5918
5919 s32 brcmf_cfg80211_down(struct net_device *ndev)
5920 {
5921 struct brcmf_if *ifp = netdev_priv(ndev);
5922 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5923 s32 err = 0;
5924
5925 mutex_lock(&cfg->usr_sync);
5926 err = __brcmf_cfg80211_down(ifp);
5927 mutex_unlock(&cfg->usr_sync);
5928
5929 return err;
5930 }
5931
5932 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5933 {
5934 struct wireless_dev *wdev = &ifp->vif->wdev;
5935
5936 return wdev->iftype;
5937 }
5938
5939 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5940 unsigned long state)
5941 {
5942 struct brcmf_cfg80211_vif *vif;
5943
5944 list_for_each_entry(vif, &cfg->vif_list, list) {
5945 if (test_bit(state, &vif->sme_state))
5946 return true;
5947 }
5948 return false;
5949 }
5950
5951 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5952 u8 action)
5953 {
5954 u8 evt_action;
5955
5956 mutex_lock(&event->vif_event_lock);
5957 evt_action = event->action;
5958 mutex_unlock(&event->vif_event_lock);
5959 return evt_action == action;
5960 }
5961
5962 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5963 struct brcmf_cfg80211_vif *vif)
5964 {
5965 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5966
5967 mutex_lock(&event->vif_event_lock);
5968 event->vif = vif;
5969 event->action = 0;
5970 mutex_unlock(&event->vif_event_lock);
5971 }
5972
5973 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5974 {
5975 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5976 bool armed;
5977
5978 mutex_lock(&event->vif_event_lock);
5979 armed = event->vif != NULL;
5980 mutex_unlock(&event->vif_event_lock);
5981
5982 return armed;
5983 }
5984 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5985 u8 action, ulong timeout)
5986 {
5987 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5988
5989 return wait_event_timeout(event->vif_wq,
5990 vif_event_equals(event, action), timeout);
5991 }
5992
5993 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
5994 struct regulatory_request *req)
5995 {
5996 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5997 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5998 struct brcmf_fil_country_le ccreq;
5999 int i;
6000
6001 brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator,
6002 req->alpha2[0], req->alpha2[1]);
6003
6004 /* ignore non-ISO3166 country codes */
6005 for (i = 0; i < sizeof(req->alpha2); i++)
6006 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
6007 brcmf_err("not a ISO3166 code\n");
6008 return;
6009 }
6010 memset(&ccreq, 0, sizeof(ccreq));
6011 ccreq.rev = cpu_to_le32(-1);
6012 memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2));
6013 brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
6014 }
6015
6016 static void brcmf_free_wiphy(struct wiphy *wiphy)
6017 {
6018 kfree(wiphy->iface_combinations);
6019 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6020 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
6021 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
6022 }
6023 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
6024 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
6025 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
6026 }
6027 wiphy_free(wiphy);
6028 }
6029
6030 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
6031 struct device *busdev)
6032 {
6033 struct net_device *ndev = drvr->iflist[0]->ndev;
6034 struct brcmf_cfg80211_info *cfg;
6035 struct wiphy *wiphy;
6036 struct brcmf_cfg80211_vif *vif;
6037 struct brcmf_if *ifp;
6038 s32 err = 0;
6039 s32 io_type;
6040 u16 *cap = NULL;
6041
6042 if (!ndev) {
6043 brcmf_err("ndev is invalid\n");
6044 return NULL;
6045 }
6046
6047 ifp = netdev_priv(ndev);
6048 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
6049 if (!wiphy) {
6050 brcmf_err("Could not allocate wiphy device\n");
6051 return NULL;
6052 }
6053 set_wiphy_dev(wiphy, busdev);
6054
6055 cfg = wiphy_priv(wiphy);
6056 cfg->wiphy = wiphy;
6057 cfg->pub = drvr;
6058 init_vif_event(&cfg->vif_event);
6059 INIT_LIST_HEAD(&cfg->vif_list);
6060
6061 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
6062 if (IS_ERR(vif))
6063 goto wiphy_out;
6064
6065 vif->ifp = ifp;
6066 vif->wdev.netdev = ndev;
6067 ndev->ieee80211_ptr = &vif->wdev;
6068 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
6069
6070 err = wl_init_priv(cfg);
6071 if (err) {
6072 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6073 brcmf_free_vif(vif);
6074 goto wiphy_out;
6075 }
6076 ifp->vif = vif;
6077
6078 /* determine d11 io type before wiphy setup */
6079 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6080 if (err) {
6081 brcmf_err("Failed to get D11 version (%d)\n", err);
6082 goto priv_out;
6083 }
6084 cfg->d11inf.io_type = (u8)io_type;
6085 brcmu_d11_attach(&cfg->d11inf);
6086
6087 err = brcmf_setup_wiphy(wiphy, ifp);
6088 if (err < 0)
6089 goto priv_out;
6090
6091 brcmf_dbg(INFO, "Registering custom regulatory\n");
6092 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6093 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6094 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6095
6096 /* firmware defaults to 40MHz disabled in 2G band. We signal
6097 * cfg80211 here that we do and have it decide we can enable
6098 * it. But first check if device does support 2G operation.
6099 */
6100 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6101 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
6102 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6103 }
6104 err = wiphy_register(wiphy);
6105 if (err < 0) {
6106 brcmf_err("Could not register wiphy device (%d)\n", err);
6107 goto priv_out;
6108 }
6109
6110 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6111 * setup 40MHz in 2GHz band and enable OBSS scanning.
6112 */
6113 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6114 err = brcmf_enable_bw40_2g(cfg);
6115 if (!err)
6116 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6117 BRCMF_OBSS_COEX_AUTO);
6118 else
6119 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6120 }
6121
6122 err = brcmf_p2p_attach(cfg);
6123 if (err) {
6124 brcmf_err("P2P initilisation failed (%d)\n", err);
6125 goto wiphy_unreg_out;
6126 }
6127 err = brcmf_btcoex_attach(cfg);
6128 if (err) {
6129 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6130 brcmf_p2p_detach(&cfg->p2p);
6131 goto wiphy_unreg_out;
6132 }
6133
6134 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
6135 if (err) {
6136 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
6137 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6138 } else {
6139 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6140 brcmf_notify_tdls_peer_event);
6141 }
6142
6143 return cfg;
6144
6145 wiphy_unreg_out:
6146 wiphy_unregister(cfg->wiphy);
6147 priv_out:
6148 wl_deinit_priv(cfg);
6149 brcmf_free_vif(vif);
6150 wiphy_out:
6151 brcmf_free_wiphy(wiphy);
6152 return NULL;
6153 }
6154
6155 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
6156 {
6157 if (!cfg)
6158 return;
6159
6160 WARN_ON(!list_empty(&cfg->vif_list));
6161 wiphy_unregister(cfg->wiphy);
6162 brcmf_btcoex_detach(cfg);
6163 brcmf_p2p_detach(&cfg->p2p);
6164 wl_deinit_priv(cfg);
6165 brcmf_free_wiphy(cfg->wiphy);
6166 }
Linux kernel - Deliverables
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