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2471dd58f17f757833c52d6d0195f50f2100df89
[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
42 #define BRCMF_SCAN_IE_LEN_MAX 2048
43 #define BRCMF_PNO_VERSION 2
44 #define BRCMF_PNO_TIME 30
45 #define BRCMF_PNO_REPEAT 4
46 #define BRCMF_PNO_FREQ_EXPO_MAX 3
47 #define BRCMF_PNO_MAX_PFN_COUNT 16
48 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
49 #define BRCMF_PNO_HIDDEN_BIT 2
50 #define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
51 #define BRCMF_PNO_SCAN_COMPLETE 1
52 #define BRCMF_PNO_SCAN_INCOMPLETE 0
53
54 #define BRCMF_IFACE_MAX_CNT 3
55
56 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
57 #define WPA_OUI_TYPE 1
58 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
59 #define WME_OUI_TYPE 2
60 #define WPS_OUI_TYPE 4
61
62 #define VS_IE_FIXED_HDR_LEN 6
63 #define WPA_IE_VERSION_LEN 2
64 #define WPA_IE_MIN_OUI_LEN 4
65 #define WPA_IE_SUITE_COUNT_LEN 2
66
67 #define WPA_CIPHER_NONE 0 /* None */
68 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
69 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
70 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
71 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
72
73 #define RSN_AKM_NONE 0 /* None (IBSS) */
74 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
75 #define RSN_AKM_PSK 2 /* Pre-shared Key */
76 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
77 #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
78
79 #define VNDR_IE_CMD_LEN 4 /* length of the set command
80 * string :"add", "del" (+ NUL)
81 */
82 #define VNDR_IE_COUNT_OFFSET 4
83 #define VNDR_IE_PKTFLAG_OFFSET 8
84 #define VNDR_IE_VSIE_OFFSET 12
85 #define VNDR_IE_HDR_SIZE 12
86 #define VNDR_IE_PARSE_LIMIT 5
87
88 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
89 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
90
91 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
92 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
93 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
94
95 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
96 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
97
98 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
99 {
100 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
101 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
102 vif->sme_state);
103 return false;
104 }
105 return true;
106 }
107
108 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
109 #define RATETAB_ENT(_rateid, _flags) \
110 { \
111 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
112 .hw_value = (_rateid), \
113 .flags = (_flags), \
114 }
115
116 static struct ieee80211_rate __wl_rates[] = {
117 RATETAB_ENT(BRCM_RATE_1M, 0),
118 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
119 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATETAB_ENT(BRCM_RATE_6M, 0),
122 RATETAB_ENT(BRCM_RATE_9M, 0),
123 RATETAB_ENT(BRCM_RATE_12M, 0),
124 RATETAB_ENT(BRCM_RATE_18M, 0),
125 RATETAB_ENT(BRCM_RATE_24M, 0),
126 RATETAB_ENT(BRCM_RATE_36M, 0),
127 RATETAB_ENT(BRCM_RATE_48M, 0),
128 RATETAB_ENT(BRCM_RATE_54M, 0),
129 };
130
131 #define wl_a_rates (__wl_rates + 4)
132 #define wl_a_rates_size 8
133 #define wl_g_rates (__wl_rates + 0)
134 #define wl_g_rates_size 12
135
136 /* Band templates duplicated per wiphy. The channel info
137 * is filled in after querying the device.
138 */
139 static const struct ieee80211_supported_band __wl_band_2ghz = {
140 .band = IEEE80211_BAND_2GHZ,
141 .bitrates = wl_g_rates,
142 .n_bitrates = wl_g_rates_size,
143 };
144
145 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
146 .band = IEEE80211_BAND_5GHZ,
147 .bitrates = wl_a_rates,
148 .n_bitrates = wl_a_rates_size,
149 };
150
151 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
152 * By default world regulatory domain defined in reg.c puts the flags
153 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
154 * With respect to these flags, wpa_supplicant doesn't * start p2p
155 * operations on 5GHz channels. All the changes in world regulatory
156 * domain are to be done here.
157 */
158 static const struct ieee80211_regdomain brcmf_regdom = {
159 .n_reg_rules = 4,
160 .alpha2 = "99",
161 .reg_rules = {
162 /* IEEE 802.11b/g, channels 1..11 */
163 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
164 /* If any */
165 /* IEEE 802.11 channel 14 - Only JP enables
166 * this and for 802.11b only
167 */
168 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
169 /* IEEE 802.11a, channel 36..64 */
170 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
171 /* IEEE 802.11a, channel 100..165 */
172 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
173 };
174
175 static const u32 __wl_cipher_suites[] = {
176 WLAN_CIPHER_SUITE_WEP40,
177 WLAN_CIPHER_SUITE_WEP104,
178 WLAN_CIPHER_SUITE_TKIP,
179 WLAN_CIPHER_SUITE_CCMP,
180 WLAN_CIPHER_SUITE_AES_CMAC,
181 };
182
183 /* Vendor specific ie. id = 221, oui and type defines exact ie */
184 struct brcmf_vs_tlv {
185 u8 id;
186 u8 len;
187 u8 oui[3];
188 u8 oui_type;
189 };
190
191 struct parsed_vndr_ie_info {
192 u8 *ie_ptr;
193 u32 ie_len; /* total length including id & length field */
194 struct brcmf_vs_tlv vndrie;
195 };
196
197 struct parsed_vndr_ies {
198 u32 count;
199 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
200 };
201
202 static int brcmf_roamoff;
203 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
204 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
205
206 /* Quarter dBm units to mW
207 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
208 * Table is offset so the last entry is largest mW value that fits in
209 * a u16.
210 */
211
212 #define QDBM_OFFSET 153 /* Offset for first entry */
213 #define QDBM_TABLE_LEN 40 /* Table size */
214
215 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
216 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
217 */
218 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
219
220 /* Largest mW value that will round down to the last table entry,
221 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
222 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
223 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
224 */
225 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
226
227 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
228 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
229 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
230 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
231 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
232 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
233 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
234 };
235
236 static u16 brcmf_qdbm_to_mw(u8 qdbm)
237 {
238 uint factor = 1;
239 int idx = qdbm - QDBM_OFFSET;
240
241 if (idx >= QDBM_TABLE_LEN)
242 /* clamp to max u16 mW value */
243 return 0xFFFF;
244
245 /* scale the qdBm index up to the range of the table 0-40
246 * where an offset of 40 qdBm equals a factor of 10 mW.
247 */
248 while (idx < 0) {
249 idx += 40;
250 factor *= 10;
251 }
252
253 /* return the mW value scaled down to the correct factor of 10,
254 * adding in factor/2 to get proper rounding.
255 */
256 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
257 }
258
259 static u8 brcmf_mw_to_qdbm(u16 mw)
260 {
261 u8 qdbm;
262 int offset;
263 uint mw_uint = mw;
264 uint boundary;
265
266 /* handle boundary case */
267 if (mw_uint <= 1)
268 return 0;
269
270 offset = QDBM_OFFSET;
271
272 /* move mw into the range of the table */
273 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
274 mw_uint *= 10;
275 offset -= 40;
276 }
277
278 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
279 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
280 nqdBm_to_mW_map[qdbm]) / 2;
281 if (mw_uint < boundary)
282 break;
283 }
284
285 qdbm += (u8) offset;
286
287 return qdbm;
288 }
289
290 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
291 struct cfg80211_chan_def *ch)
292 {
293 struct brcmu_chan ch_inf;
294 s32 primary_offset;
295
296 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
297 ch->chan->center_freq, ch->center_freq1, ch->width);
298 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
299 primary_offset = ch->center_freq1 - ch->chan->center_freq;
300 switch (ch->width) {
301 case NL80211_CHAN_WIDTH_20:
302 case NL80211_CHAN_WIDTH_20_NOHT:
303 ch_inf.bw = BRCMU_CHAN_BW_20;
304 WARN_ON(primary_offset != 0);
305 break;
306 case NL80211_CHAN_WIDTH_40:
307 ch_inf.bw = BRCMU_CHAN_BW_40;
308 if (primary_offset < 0)
309 ch_inf.sb = BRCMU_CHAN_SB_U;
310 else
311 ch_inf.sb = BRCMU_CHAN_SB_L;
312 break;
313 case NL80211_CHAN_WIDTH_80:
314 ch_inf.bw = BRCMU_CHAN_BW_80;
315 if (primary_offset < 0) {
316 if (primary_offset < -CH_10MHZ_APART)
317 ch_inf.sb = BRCMU_CHAN_SB_UU;
318 else
319 ch_inf.sb = BRCMU_CHAN_SB_UL;
320 } else {
321 if (primary_offset > CH_10MHZ_APART)
322 ch_inf.sb = BRCMU_CHAN_SB_LL;
323 else
324 ch_inf.sb = BRCMU_CHAN_SB_LU;
325 }
326 break;
327 case NL80211_CHAN_WIDTH_80P80:
328 case NL80211_CHAN_WIDTH_160:
329 case NL80211_CHAN_WIDTH_5:
330 case NL80211_CHAN_WIDTH_10:
331 default:
332 WARN_ON_ONCE(1);
333 }
334 switch (ch->chan->band) {
335 case IEEE80211_BAND_2GHZ:
336 ch_inf.band = BRCMU_CHAN_BAND_2G;
337 break;
338 case IEEE80211_BAND_5GHZ:
339 ch_inf.band = BRCMU_CHAN_BAND_5G;
340 break;
341 case IEEE80211_BAND_60GHZ:
342 default:
343 WARN_ON_ONCE(1);
344 }
345 d11inf->encchspec(&ch_inf);
346
347 return ch_inf.chspec;
348 }
349
350 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
351 struct ieee80211_channel *ch)
352 {
353 struct brcmu_chan ch_inf;
354
355 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
356 ch_inf.bw = BRCMU_CHAN_BW_20;
357 d11inf->encchspec(&ch_inf);
358
359 return ch_inf.chspec;
360 }
361
362 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
363 * triples, returning a pointer to the substring whose first element
364 * matches tag
365 */
366 const struct brcmf_tlv *
367 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
368 {
369 const struct brcmf_tlv *elt = buf;
370 int totlen = buflen;
371
372 /* find tagged parameter */
373 while (totlen >= TLV_HDR_LEN) {
374 int len = elt->len;
375
376 /* validate remaining totlen */
377 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
378 return elt;
379
380 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
381 totlen -= (len + TLV_HDR_LEN);
382 }
383
384 return NULL;
385 }
386
387 /* Is any of the tlvs the expected entry? If
388 * not update the tlvs buffer pointer/length.
389 */
390 static bool
391 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
392 const u8 *oui, u32 oui_len, u8 type)
393 {
394 /* If the contents match the OUI and the type */
395 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
396 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
397 type == ie[TLV_BODY_OFF + oui_len]) {
398 return true;
399 }
400
401 if (tlvs == NULL)
402 return false;
403 /* point to the next ie */
404 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
405 /* calculate the length of the rest of the buffer */
406 *tlvs_len -= (int)(ie - *tlvs);
407 /* update the pointer to the start of the buffer */
408 *tlvs = ie;
409
410 return false;
411 }
412
413 static struct brcmf_vs_tlv *
414 brcmf_find_wpaie(const u8 *parse, u32 len)
415 {
416 const struct brcmf_tlv *ie;
417
418 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
419 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
420 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
421 return (struct brcmf_vs_tlv *)ie;
422 }
423 return NULL;
424 }
425
426 static struct brcmf_vs_tlv *
427 brcmf_find_wpsie(const u8 *parse, u32 len)
428 {
429 const struct brcmf_tlv *ie;
430
431 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
432 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
433 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
434 return (struct brcmf_vs_tlv *)ie;
435 }
436 return NULL;
437 }
438
439
440 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
441 struct brcmf_wsec_key_le *key_le)
442 {
443 key_le->index = cpu_to_le32(key->index);
444 key_le->len = cpu_to_le32(key->len);
445 key_le->algo = cpu_to_le32(key->algo);
446 key_le->flags = cpu_to_le32(key->flags);
447 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
448 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
449 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
450 memcpy(key_le->data, key->data, sizeof(key->data));
451 memcpy(key_le->ea, key->ea, sizeof(key->ea));
452 }
453
454 static int
455 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key)
456 {
457 int err;
458 struct brcmf_wsec_key_le key_le;
459
460 convert_key_from_CPU(key, &key_le);
461
462 brcmf_netdev_wait_pend8021x(ifp);
463
464 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le,
465 sizeof(key_le));
466
467 if (err)
468 brcmf_err("wsec_key error (%d)\n", err);
469 return err;
470 }
471
472 static s32
473 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
474 {
475 s32 err;
476 u32 mode;
477
478 if (enable)
479 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
480 else
481 mode = 0;
482
483 /* Try to set and enable ARP offload feature, this may fail, then it */
484 /* is simply not supported and err 0 will be returned */
485 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
486 if (err) {
487 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
488 mode, err);
489 err = 0;
490 } else {
491 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
492 if (err) {
493 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
494 enable, err);
495 err = 0;
496 } else
497 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
498 enable, mode);
499 }
500
501 return err;
502 }
503
504 static void
505 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
506 {
507 struct brcmf_cfg80211_vif *vif;
508 struct brcmf_if *ifp;
509
510 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
511 ifp = vif->ifp;
512
513 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
514 (wdev->iftype == NL80211_IFTYPE_AP) ||
515 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
516 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
517 ADDR_DIRECT);
518 else
519 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
520 ADDR_INDIRECT);
521 }
522
523 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
524 {
525 struct brcmf_mbss_ssid_le mbss_ssid_le;
526 int bsscfgidx;
527 int err;
528
529 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
530 bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr);
531 if (bsscfgidx < 0)
532 return bsscfgidx;
533
534 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
535 mbss_ssid_le.SSID_len = cpu_to_le32(5);
536 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
537
538 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
539 sizeof(mbss_ssid_le));
540 if (err < 0)
541 brcmf_err("setting ssid failed %d\n", err);
542
543 return err;
544 }
545
546 /**
547 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
548 *
549 * @wiphy: wiphy device of new interface.
550 * @name: name of the new interface.
551 * @flags: not used.
552 * @params: contains mac address for AP device.
553 */
554 static
555 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
556 u32 *flags, struct vif_params *params)
557 {
558 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
559 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
560 struct brcmf_cfg80211_vif *vif;
561 int err;
562
563 if (brcmf_cfg80211_vif_event_armed(cfg))
564 return ERR_PTR(-EBUSY);
565
566 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
567
568 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false);
569 if (IS_ERR(vif))
570 return (struct wireless_dev *)vif;
571
572 brcmf_cfg80211_arm_vif_event(cfg, vif);
573
574 err = brcmf_cfg80211_request_ap_if(ifp);
575 if (err) {
576 brcmf_cfg80211_arm_vif_event(cfg, NULL);
577 goto fail;
578 }
579
580 /* wait for firmware event */
581 err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
582 msecs_to_jiffies(1500));
583 brcmf_cfg80211_arm_vif_event(cfg, NULL);
584 if (!err) {
585 brcmf_err("timeout occurred\n");
586 err = -EIO;
587 goto fail;
588 }
589
590 /* interface created in firmware */
591 ifp = vif->ifp;
592 if (!ifp) {
593 brcmf_err("no if pointer provided\n");
594 err = -ENOENT;
595 goto fail;
596 }
597
598 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
599 err = brcmf_net_attach(ifp, true);
600 if (err) {
601 brcmf_err("Registering netdevice failed\n");
602 goto fail;
603 }
604
605 return &ifp->vif->wdev;
606
607 fail:
608 brcmf_free_vif(vif);
609 return ERR_PTR(err);
610 }
611
612 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
613 {
614 enum nl80211_iftype iftype;
615
616 iftype = vif->wdev.iftype;
617 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
618 }
619
620 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
621 {
622 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
623 }
624
625 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
626 const char *name,
627 enum nl80211_iftype type,
628 u32 *flags,
629 struct vif_params *params)
630 {
631 struct wireless_dev *wdev;
632
633 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
634 switch (type) {
635 case NL80211_IFTYPE_ADHOC:
636 case NL80211_IFTYPE_STATION:
637 case NL80211_IFTYPE_AP_VLAN:
638 case NL80211_IFTYPE_WDS:
639 case NL80211_IFTYPE_MONITOR:
640 case NL80211_IFTYPE_MESH_POINT:
641 return ERR_PTR(-EOPNOTSUPP);
642 case NL80211_IFTYPE_AP:
643 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
644 if (!IS_ERR(wdev))
645 brcmf_cfg80211_update_proto_addr_mode(wdev);
646 return wdev;
647 case NL80211_IFTYPE_P2P_CLIENT:
648 case NL80211_IFTYPE_P2P_GO:
649 case NL80211_IFTYPE_P2P_DEVICE:
650 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
651 if (!IS_ERR(wdev))
652 brcmf_cfg80211_update_proto_addr_mode(wdev);
653 return wdev;
654 case NL80211_IFTYPE_UNSPECIFIED:
655 default:
656 return ERR_PTR(-EINVAL);
657 }
658 }
659
660 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
661 {
662 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
663 brcmf_set_mpc(ifp, mpc);
664 }
665
666 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
667 {
668 s32 err = 0;
669
670 if (check_vif_up(ifp->vif)) {
671 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
672 if (err) {
673 brcmf_err("fail to set mpc\n");
674 return;
675 }
676 brcmf_dbg(INFO, "MPC : %d\n", mpc);
677 }
678 }
679
680 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
681 struct brcmf_if *ifp, bool aborted,
682 bool fw_abort)
683 {
684 struct brcmf_scan_params_le params_le;
685 struct cfg80211_scan_request *scan_request;
686 s32 err = 0;
687
688 brcmf_dbg(SCAN, "Enter\n");
689
690 /* clear scan request, because the FW abort can cause a second call */
691 /* to this functon and might cause a double cfg80211_scan_done */
692 scan_request = cfg->scan_request;
693 cfg->scan_request = NULL;
694
695 if (timer_pending(&cfg->escan_timeout))
696 del_timer_sync(&cfg->escan_timeout);
697
698 if (fw_abort) {
699 /* Do a scan abort to stop the driver's scan engine */
700 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
701 memset(&params_le, 0, sizeof(params_le));
702 memset(params_le.bssid, 0xFF, ETH_ALEN);
703 params_le.bss_type = DOT11_BSSTYPE_ANY;
704 params_le.scan_type = 0;
705 params_le.channel_num = cpu_to_le32(1);
706 params_le.nprobes = cpu_to_le32(1);
707 params_le.active_time = cpu_to_le32(-1);
708 params_le.passive_time = cpu_to_le32(-1);
709 params_le.home_time = cpu_to_le32(-1);
710 /* Scan is aborted by setting channel_list[0] to -1 */
711 params_le.channel_list[0] = cpu_to_le16(-1);
712 /* E-Scan (or anyother type) can be aborted by SCAN */
713 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
714 &params_le, sizeof(params_le));
715 if (err)
716 brcmf_err("Scan abort failed\n");
717 }
718
719 brcmf_scan_config_mpc(ifp, 1);
720
721 /*
722 * e-scan can be initiated by scheduled scan
723 * which takes precedence.
724 */
725 if (cfg->sched_escan) {
726 brcmf_dbg(SCAN, "scheduled scan completed\n");
727 cfg->sched_escan = false;
728 if (!aborted)
729 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
730 } else if (scan_request) {
731 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
732 aborted ? "Aborted" : "Done");
733 cfg80211_scan_done(scan_request, aborted);
734 }
735 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
736 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
737
738 return err;
739 }
740
741 static
742 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
743 {
744 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
745 struct net_device *ndev = wdev->netdev;
746
747 /* vif event pending in firmware */
748 if (brcmf_cfg80211_vif_event_armed(cfg))
749 return -EBUSY;
750
751 if (ndev) {
752 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
753 cfg->escan_info.ifp == netdev_priv(ndev))
754 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
755 true, true);
756
757 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
758 }
759
760 switch (wdev->iftype) {
761 case NL80211_IFTYPE_ADHOC:
762 case NL80211_IFTYPE_STATION:
763 case NL80211_IFTYPE_AP:
764 case NL80211_IFTYPE_AP_VLAN:
765 case NL80211_IFTYPE_WDS:
766 case NL80211_IFTYPE_MONITOR:
767 case NL80211_IFTYPE_MESH_POINT:
768 return -EOPNOTSUPP;
769 case NL80211_IFTYPE_P2P_CLIENT:
770 case NL80211_IFTYPE_P2P_GO:
771 case NL80211_IFTYPE_P2P_DEVICE:
772 return brcmf_p2p_del_vif(wiphy, wdev);
773 case NL80211_IFTYPE_UNSPECIFIED:
774 default:
775 return -EINVAL;
776 }
777 return -EOPNOTSUPP;
778 }
779
780 static s32
781 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
782 enum nl80211_iftype type, u32 *flags,
783 struct vif_params *params)
784 {
785 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
786 struct brcmf_if *ifp = netdev_priv(ndev);
787 struct brcmf_cfg80211_vif *vif = ifp->vif;
788 s32 infra = 0;
789 s32 ap = 0;
790 s32 err = 0;
791
792 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
793
794 switch (type) {
795 case NL80211_IFTYPE_MONITOR:
796 case NL80211_IFTYPE_WDS:
797 brcmf_err("type (%d) : currently we do not support this type\n",
798 type);
799 return -EOPNOTSUPP;
800 case NL80211_IFTYPE_ADHOC:
801 infra = 0;
802 break;
803 case NL80211_IFTYPE_STATION:
804 /* Ignore change for p2p IF. Unclear why supplicant does this */
805 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
806 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
807 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
808 /* WAR: It is unexpected to get a change of VIF for P2P
809 * IF, but it happens. The request can not be handled
810 * but returning EPERM causes a crash. Returning 0
811 * without setting ieee80211_ptr->iftype causes trace
812 * (WARN_ON) but it works with wpa_supplicant
813 */
814 return 0;
815 }
816 infra = 1;
817 break;
818 case NL80211_IFTYPE_AP:
819 case NL80211_IFTYPE_P2P_GO:
820 ap = 1;
821 break;
822 default:
823 err = -EINVAL;
824 goto done;
825 }
826
827 if (ap) {
828 if (type == NL80211_IFTYPE_P2P_GO) {
829 brcmf_dbg(INFO, "IF Type = P2P GO\n");
830 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
831 }
832 if (!err) {
833 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
834 brcmf_dbg(INFO, "IF Type = AP\n");
835 }
836 } else {
837 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
838 if (err) {
839 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
840 err = -EAGAIN;
841 goto done;
842 }
843 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
844 "Adhoc" : "Infra");
845 }
846 ndev->ieee80211_ptr->iftype = type;
847
848 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
849
850 done:
851 brcmf_dbg(TRACE, "Exit\n");
852
853 return err;
854 }
855
856 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
857 struct brcmf_scan_params_le *params_le,
858 struct cfg80211_scan_request *request)
859 {
860 u32 n_ssids;
861 u32 n_channels;
862 s32 i;
863 s32 offset;
864 u16 chanspec;
865 char *ptr;
866 struct brcmf_ssid_le ssid_le;
867
868 memset(params_le->bssid, 0xFF, ETH_ALEN);
869 params_le->bss_type = DOT11_BSSTYPE_ANY;
870 params_le->scan_type = 0;
871 params_le->channel_num = 0;
872 params_le->nprobes = cpu_to_le32(-1);
873 params_le->active_time = cpu_to_le32(-1);
874 params_le->passive_time = cpu_to_le32(-1);
875 params_le->home_time = cpu_to_le32(-1);
876 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
877
878 /* if request is null exit so it will be all channel broadcast scan */
879 if (!request)
880 return;
881
882 n_ssids = request->n_ssids;
883 n_channels = request->n_channels;
884 /* Copy channel array if applicable */
885 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
886 n_channels);
887 if (n_channels > 0) {
888 for (i = 0; i < n_channels; i++) {
889 chanspec = channel_to_chanspec(&cfg->d11inf,
890 request->channels[i]);
891 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
892 request->channels[i]->hw_value, chanspec);
893 params_le->channel_list[i] = cpu_to_le16(chanspec);
894 }
895 } else {
896 brcmf_dbg(SCAN, "Scanning all channels\n");
897 }
898 /* Copy ssid array if applicable */
899 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
900 if (n_ssids > 0) {
901 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
902 n_channels * sizeof(u16);
903 offset = roundup(offset, sizeof(u32));
904 ptr = (char *)params_le + offset;
905 for (i = 0; i < n_ssids; i++) {
906 memset(&ssid_le, 0, sizeof(ssid_le));
907 ssid_le.SSID_len =
908 cpu_to_le32(request->ssids[i].ssid_len);
909 memcpy(ssid_le.SSID, request->ssids[i].ssid,
910 request->ssids[i].ssid_len);
911 if (!ssid_le.SSID_len)
912 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
913 else
914 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
915 i, ssid_le.SSID, ssid_le.SSID_len);
916 memcpy(ptr, &ssid_le, sizeof(ssid_le));
917 ptr += sizeof(ssid_le);
918 }
919 } else {
920 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
921 if ((request->ssids) && request->ssids->ssid_len) {
922 brcmf_dbg(SCAN, "SSID %s len=%d\n",
923 params_le->ssid_le.SSID,
924 request->ssids->ssid_len);
925 params_le->ssid_le.SSID_len =
926 cpu_to_le32(request->ssids->ssid_len);
927 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
928 request->ssids->ssid_len);
929 }
930 }
931 /* Adding mask to channel numbers */
932 params_le->channel_num =
933 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
934 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
935 }
936
937 static s32
938 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
939 struct cfg80211_scan_request *request, u16 action)
940 {
941 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
942 offsetof(struct brcmf_escan_params_le, params_le);
943 struct brcmf_escan_params_le *params;
944 s32 err = 0;
945
946 brcmf_dbg(SCAN, "E-SCAN START\n");
947
948 if (request != NULL) {
949 /* Allocate space for populating ssids in struct */
950 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
951
952 /* Allocate space for populating ssids in struct */
953 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
954 }
955
956 params = kzalloc(params_size, GFP_KERNEL);
957 if (!params) {
958 err = -ENOMEM;
959 goto exit;
960 }
961 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
962 brcmf_escan_prep(cfg, &params->params_le, request);
963 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
964 params->action = cpu_to_le16(action);
965 params->sync_id = cpu_to_le16(0x1234);
966
967 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
968 if (err) {
969 if (err == -EBUSY)
970 brcmf_dbg(INFO, "system busy : escan canceled\n");
971 else
972 brcmf_err("error (%d)\n", err);
973 }
974
975 kfree(params);
976 exit:
977 return err;
978 }
979
980 static s32
981 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
982 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
983 {
984 s32 err;
985 u32 passive_scan;
986 struct brcmf_scan_results *results;
987 struct escan_info *escan = &cfg->escan_info;
988
989 brcmf_dbg(SCAN, "Enter\n");
990 escan->ifp = ifp;
991 escan->wiphy = wiphy;
992 escan->escan_state = WL_ESCAN_STATE_SCANNING;
993 passive_scan = cfg->active_scan ? 0 : 1;
994 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
995 passive_scan);
996 if (err) {
997 brcmf_err("error (%d)\n", err);
998 return err;
999 }
1000 brcmf_scan_config_mpc(ifp, 0);
1001 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1002 results->version = 0;
1003 results->count = 0;
1004 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1005
1006 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
1007 if (err)
1008 brcmf_scan_config_mpc(ifp, 1);
1009 return err;
1010 }
1011
1012 static s32
1013 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1014 struct cfg80211_scan_request *request,
1015 struct cfg80211_ssid *this_ssid)
1016 {
1017 struct brcmf_if *ifp = vif->ifp;
1018 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1019 struct cfg80211_ssid *ssids;
1020 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
1021 u32 passive_scan;
1022 bool escan_req;
1023 bool spec_scan;
1024 s32 err;
1025 u32 SSID_len;
1026
1027 brcmf_dbg(SCAN, "START ESCAN\n");
1028
1029 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1030 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1031 return -EAGAIN;
1032 }
1033 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1034 brcmf_err("Scanning being aborted: status (%lu)\n",
1035 cfg->scan_status);
1036 return -EAGAIN;
1037 }
1038 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1039 brcmf_err("Scanning suppressed: status (%lu)\n",
1040 cfg->scan_status);
1041 return -EAGAIN;
1042 }
1043 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1044 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1045 return -EAGAIN;
1046 }
1047
1048 /* If scan req comes for p2p0, send it over primary I/F */
1049 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1050 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1051
1052 /* Arm scan timeout timer */
1053 mod_timer(&cfg->escan_timeout, jiffies +
1054 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1055
1056 escan_req = false;
1057 if (request) {
1058 /* scan bss */
1059 ssids = request->ssids;
1060 escan_req = true;
1061 } else {
1062 /* scan in ibss */
1063 /* we don't do escan in ibss */
1064 ssids = this_ssid;
1065 }
1066
1067 cfg->scan_request = request;
1068 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1069 if (escan_req) {
1070 cfg->escan_info.run = brcmf_run_escan;
1071 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1072 if (err)
1073 goto scan_out;
1074
1075 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1076 if (err)
1077 goto scan_out;
1078 } else {
1079 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1080 ssids->ssid, ssids->ssid_len);
1081 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
1082 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
1083 sr->ssid_le.SSID_len = cpu_to_le32(0);
1084 spec_scan = false;
1085 if (SSID_len) {
1086 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
1087 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
1088 spec_scan = true;
1089 } else
1090 brcmf_dbg(SCAN, "Broadcast scan\n");
1091
1092 passive_scan = cfg->active_scan ? 0 : 1;
1093 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1094 passive_scan);
1095 if (err) {
1096 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1097 goto scan_out;
1098 }
1099 brcmf_scan_config_mpc(ifp, 0);
1100 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1101 &sr->ssid_le, sizeof(sr->ssid_le));
1102 if (err) {
1103 if (err == -EBUSY)
1104 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1105 sr->ssid_le.SSID);
1106 else
1107 brcmf_err("WLC_SCAN error (%d)\n", err);
1108
1109 brcmf_scan_config_mpc(ifp, 1);
1110 goto scan_out;
1111 }
1112 }
1113
1114 return 0;
1115
1116 scan_out:
1117 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1118 if (timer_pending(&cfg->escan_timeout))
1119 del_timer_sync(&cfg->escan_timeout);
1120 cfg->scan_request = NULL;
1121 return err;
1122 }
1123
1124 static s32
1125 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1126 {
1127 struct brcmf_cfg80211_vif *vif;
1128 s32 err = 0;
1129
1130 brcmf_dbg(TRACE, "Enter\n");
1131 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1132 if (!check_vif_up(vif))
1133 return -EIO;
1134
1135 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1136
1137 if (err)
1138 brcmf_err("scan error (%d)\n", err);
1139
1140 brcmf_dbg(TRACE, "Exit\n");
1141 return err;
1142 }
1143
1144 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1145 {
1146 s32 err = 0;
1147
1148 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1149 rts_threshold);
1150 if (err)
1151 brcmf_err("Error (%d)\n", err);
1152
1153 return err;
1154 }
1155
1156 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1157 {
1158 s32 err = 0;
1159
1160 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1161 frag_threshold);
1162 if (err)
1163 brcmf_err("Error (%d)\n", err);
1164
1165 return err;
1166 }
1167
1168 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1169 {
1170 s32 err = 0;
1171 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1172
1173 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1174 if (err) {
1175 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1176 return err;
1177 }
1178 return err;
1179 }
1180
1181 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1182 {
1183 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1184 struct net_device *ndev = cfg_to_ndev(cfg);
1185 struct brcmf_if *ifp = netdev_priv(ndev);
1186 s32 err = 0;
1187
1188 brcmf_dbg(TRACE, "Enter\n");
1189 if (!check_vif_up(ifp->vif))
1190 return -EIO;
1191
1192 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1193 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1194 cfg->conf->rts_threshold = wiphy->rts_threshold;
1195 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1196 if (!err)
1197 goto done;
1198 }
1199 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1200 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1201 cfg->conf->frag_threshold = wiphy->frag_threshold;
1202 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1203 if (!err)
1204 goto done;
1205 }
1206 if (changed & WIPHY_PARAM_RETRY_LONG
1207 && (cfg->conf->retry_long != wiphy->retry_long)) {
1208 cfg->conf->retry_long = wiphy->retry_long;
1209 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1210 if (!err)
1211 goto done;
1212 }
1213 if (changed & WIPHY_PARAM_RETRY_SHORT
1214 && (cfg->conf->retry_short != wiphy->retry_short)) {
1215 cfg->conf->retry_short = wiphy->retry_short;
1216 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1217 if (!err)
1218 goto done;
1219 }
1220
1221 done:
1222 brcmf_dbg(TRACE, "Exit\n");
1223 return err;
1224 }
1225
1226 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1227 {
1228 memset(prof, 0, sizeof(*prof));
1229 }
1230
1231 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1232 {
1233 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1234 s32 err = 0;
1235
1236 brcmf_dbg(TRACE, "Enter\n");
1237
1238 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1239 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1240 err = brcmf_fil_cmd_data_set(vif->ifp,
1241 BRCMF_C_DISASSOC, NULL, 0);
1242 if (err) {
1243 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1244 }
1245 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1246 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1247
1248 }
1249 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1250 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1251 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1252 brcmf_dbg(TRACE, "Exit\n");
1253 }
1254
1255 static s32
1256 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1257 struct cfg80211_ibss_params *params)
1258 {
1259 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1260 struct brcmf_if *ifp = netdev_priv(ndev);
1261 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1262 struct brcmf_join_params join_params;
1263 size_t join_params_size = 0;
1264 s32 err = 0;
1265 s32 wsec = 0;
1266 s32 bcnprd;
1267 u16 chanspec;
1268
1269 brcmf_dbg(TRACE, "Enter\n");
1270 if (!check_vif_up(ifp->vif))
1271 return -EIO;
1272
1273 if (params->ssid)
1274 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1275 else {
1276 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1277 return -EOPNOTSUPP;
1278 }
1279
1280 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1281
1282 if (params->bssid)
1283 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1284 else
1285 brcmf_dbg(CONN, "No BSSID specified\n");
1286
1287 if (params->chandef.chan)
1288 brcmf_dbg(CONN, "channel: %d\n",
1289 params->chandef.chan->center_freq);
1290 else
1291 brcmf_dbg(CONN, "no channel specified\n");
1292
1293 if (params->channel_fixed)
1294 brcmf_dbg(CONN, "fixed channel required\n");
1295 else
1296 brcmf_dbg(CONN, "no fixed channel required\n");
1297
1298 if (params->ie && params->ie_len)
1299 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1300 else
1301 brcmf_dbg(CONN, "no ie specified\n");
1302
1303 if (params->beacon_interval)
1304 brcmf_dbg(CONN, "beacon interval: %d\n",
1305 params->beacon_interval);
1306 else
1307 brcmf_dbg(CONN, "no beacon interval specified\n");
1308
1309 if (params->basic_rates)
1310 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1311 else
1312 brcmf_dbg(CONN, "no basic rates specified\n");
1313
1314 if (params->privacy)
1315 brcmf_dbg(CONN, "privacy required\n");
1316 else
1317 brcmf_dbg(CONN, "no privacy required\n");
1318
1319 /* Configure Privacy for starter */
1320 if (params->privacy)
1321 wsec |= WEP_ENABLED;
1322
1323 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1324 if (err) {
1325 brcmf_err("wsec failed (%d)\n", err);
1326 goto done;
1327 }
1328
1329 /* Configure Beacon Interval for starter */
1330 if (params->beacon_interval)
1331 bcnprd = params->beacon_interval;
1332 else
1333 bcnprd = 100;
1334
1335 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1336 if (err) {
1337 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1338 goto done;
1339 }
1340
1341 /* Configure required join parameter */
1342 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1343
1344 /* SSID */
1345 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1346 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1347 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1348 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1349 join_params_size = sizeof(join_params.ssid_le);
1350
1351 /* BSSID */
1352 if (params->bssid) {
1353 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1354 join_params_size = sizeof(join_params.ssid_le) +
1355 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1356 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1357 } else {
1358 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1359 memset(profile->bssid, 0, ETH_ALEN);
1360 }
1361
1362 /* Channel */
1363 if (params->chandef.chan) {
1364 u32 target_channel;
1365
1366 cfg->channel =
1367 ieee80211_frequency_to_channel(
1368 params->chandef.chan->center_freq);
1369 if (params->channel_fixed) {
1370 /* adding chanspec */
1371 chanspec = chandef_to_chanspec(&cfg->d11inf,
1372 &params->chandef);
1373 join_params.params_le.chanspec_list[0] =
1374 cpu_to_le16(chanspec);
1375 join_params.params_le.chanspec_num = cpu_to_le32(1);
1376 join_params_size += sizeof(join_params.params_le);
1377 }
1378
1379 /* set channel for starter */
1380 target_channel = cfg->channel;
1381 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1382 target_channel);
1383 if (err) {
1384 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1385 goto done;
1386 }
1387 } else
1388 cfg->channel = 0;
1389
1390 cfg->ibss_starter = false;
1391
1392
1393 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1394 &join_params, join_params_size);
1395 if (err) {
1396 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1397 goto done;
1398 }
1399
1400 done:
1401 if (err)
1402 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1403 brcmf_dbg(TRACE, "Exit\n");
1404 return err;
1405 }
1406
1407 static s32
1408 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1409 {
1410 struct brcmf_if *ifp = netdev_priv(ndev);
1411
1412 brcmf_dbg(TRACE, "Enter\n");
1413 if (!check_vif_up(ifp->vif))
1414 return -EIO;
1415
1416 brcmf_link_down(ifp->vif);
1417
1418 brcmf_dbg(TRACE, "Exit\n");
1419
1420 return 0;
1421 }
1422
1423 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1424 struct cfg80211_connect_params *sme)
1425 {
1426 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1427 struct brcmf_cfg80211_security *sec;
1428 s32 val = 0;
1429 s32 err = 0;
1430
1431 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1432 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1433 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1434 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1435 else
1436 val = WPA_AUTH_DISABLED;
1437 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1438 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1439 if (err) {
1440 brcmf_err("set wpa_auth failed (%d)\n", err);
1441 return err;
1442 }
1443 sec = &profile->sec;
1444 sec->wpa_versions = sme->crypto.wpa_versions;
1445 return err;
1446 }
1447
1448 static s32 brcmf_set_auth_type(struct net_device *ndev,
1449 struct cfg80211_connect_params *sme)
1450 {
1451 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1452 struct brcmf_cfg80211_security *sec;
1453 s32 val = 0;
1454 s32 err = 0;
1455
1456 switch (sme->auth_type) {
1457 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1458 val = 0;
1459 brcmf_dbg(CONN, "open system\n");
1460 break;
1461 case NL80211_AUTHTYPE_SHARED_KEY:
1462 val = 1;
1463 brcmf_dbg(CONN, "shared key\n");
1464 break;
1465 case NL80211_AUTHTYPE_AUTOMATIC:
1466 val = 2;
1467 brcmf_dbg(CONN, "automatic\n");
1468 break;
1469 case NL80211_AUTHTYPE_NETWORK_EAP:
1470 brcmf_dbg(CONN, "network eap\n");
1471 default:
1472 val = 2;
1473 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1474 break;
1475 }
1476
1477 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1478 if (err) {
1479 brcmf_err("set auth failed (%d)\n", err);
1480 return err;
1481 }
1482 sec = &profile->sec;
1483 sec->auth_type = sme->auth_type;
1484 return err;
1485 }
1486
1487 static s32
1488 brcmf_set_wsec_mode(struct net_device *ndev,
1489 struct cfg80211_connect_params *sme, bool mfp)
1490 {
1491 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1492 struct brcmf_cfg80211_security *sec;
1493 s32 pval = 0;
1494 s32 gval = 0;
1495 s32 wsec;
1496 s32 err = 0;
1497
1498 if (sme->crypto.n_ciphers_pairwise) {
1499 switch (sme->crypto.ciphers_pairwise[0]) {
1500 case WLAN_CIPHER_SUITE_WEP40:
1501 case WLAN_CIPHER_SUITE_WEP104:
1502 pval = WEP_ENABLED;
1503 break;
1504 case WLAN_CIPHER_SUITE_TKIP:
1505 pval = TKIP_ENABLED;
1506 break;
1507 case WLAN_CIPHER_SUITE_CCMP:
1508 pval = AES_ENABLED;
1509 break;
1510 case WLAN_CIPHER_SUITE_AES_CMAC:
1511 pval = AES_ENABLED;
1512 break;
1513 default:
1514 brcmf_err("invalid cipher pairwise (%d)\n",
1515 sme->crypto.ciphers_pairwise[0]);
1516 return -EINVAL;
1517 }
1518 }
1519 if (sme->crypto.cipher_group) {
1520 switch (sme->crypto.cipher_group) {
1521 case WLAN_CIPHER_SUITE_WEP40:
1522 case WLAN_CIPHER_SUITE_WEP104:
1523 gval = WEP_ENABLED;
1524 break;
1525 case WLAN_CIPHER_SUITE_TKIP:
1526 gval = TKIP_ENABLED;
1527 break;
1528 case WLAN_CIPHER_SUITE_CCMP:
1529 gval = AES_ENABLED;
1530 break;
1531 case WLAN_CIPHER_SUITE_AES_CMAC:
1532 gval = AES_ENABLED;
1533 break;
1534 default:
1535 brcmf_err("invalid cipher group (%d)\n",
1536 sme->crypto.cipher_group);
1537 return -EINVAL;
1538 }
1539 }
1540
1541 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1542 /* In case of privacy, but no security and WPS then simulate */
1543 /* setting AES. WPS-2.0 allows no security */
1544 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1545 sme->privacy)
1546 pval = AES_ENABLED;
1547
1548 if (mfp)
1549 wsec = pval | gval | MFP_CAPABLE;
1550 else
1551 wsec = pval | gval;
1552 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1553 if (err) {
1554 brcmf_err("error (%d)\n", err);
1555 return err;
1556 }
1557
1558 sec = &profile->sec;
1559 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1560 sec->cipher_group = sme->crypto.cipher_group;
1561
1562 return err;
1563 }
1564
1565 static s32
1566 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1567 {
1568 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1569 struct brcmf_cfg80211_security *sec;
1570 s32 val = 0;
1571 s32 err = 0;
1572
1573 if (sme->crypto.n_akm_suites) {
1574 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1575 "wpa_auth", &val);
1576 if (err) {
1577 brcmf_err("could not get wpa_auth (%d)\n", err);
1578 return err;
1579 }
1580 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1581 switch (sme->crypto.akm_suites[0]) {
1582 case WLAN_AKM_SUITE_8021X:
1583 val = WPA_AUTH_UNSPECIFIED;
1584 break;
1585 case WLAN_AKM_SUITE_PSK:
1586 val = WPA_AUTH_PSK;
1587 break;
1588 default:
1589 brcmf_err("invalid cipher group (%d)\n",
1590 sme->crypto.cipher_group);
1591 return -EINVAL;
1592 }
1593 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1594 switch (sme->crypto.akm_suites[0]) {
1595 case WLAN_AKM_SUITE_8021X:
1596 val = WPA2_AUTH_UNSPECIFIED;
1597 break;
1598 case WLAN_AKM_SUITE_PSK:
1599 val = WPA2_AUTH_PSK;
1600 break;
1601 default:
1602 brcmf_err("invalid cipher group (%d)\n",
1603 sme->crypto.cipher_group);
1604 return -EINVAL;
1605 }
1606 }
1607
1608 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1609 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1610 "wpa_auth", val);
1611 if (err) {
1612 brcmf_err("could not set wpa_auth (%d)\n", err);
1613 return err;
1614 }
1615 }
1616 sec = &profile->sec;
1617 sec->wpa_auth = sme->crypto.akm_suites[0];
1618
1619 return err;
1620 }
1621
1622 static s32
1623 brcmf_set_sharedkey(struct net_device *ndev,
1624 struct cfg80211_connect_params *sme)
1625 {
1626 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1627 struct brcmf_cfg80211_security *sec;
1628 struct brcmf_wsec_key key;
1629 s32 val;
1630 s32 err = 0;
1631
1632 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1633
1634 if (sme->key_len == 0)
1635 return 0;
1636
1637 sec = &profile->sec;
1638 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1639 sec->wpa_versions, sec->cipher_pairwise);
1640
1641 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1642 return 0;
1643
1644 if (!(sec->cipher_pairwise &
1645 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1646 return 0;
1647
1648 memset(&key, 0, sizeof(key));
1649 key.len = (u32) sme->key_len;
1650 key.index = (u32) sme->key_idx;
1651 if (key.len > sizeof(key.data)) {
1652 brcmf_err("Too long key length (%u)\n", key.len);
1653 return -EINVAL;
1654 }
1655 memcpy(key.data, sme->key, key.len);
1656 key.flags = BRCMF_PRIMARY_KEY;
1657 switch (sec->cipher_pairwise) {
1658 case WLAN_CIPHER_SUITE_WEP40:
1659 key.algo = CRYPTO_ALGO_WEP1;
1660 break;
1661 case WLAN_CIPHER_SUITE_WEP104:
1662 key.algo = CRYPTO_ALGO_WEP128;
1663 break;
1664 default:
1665 brcmf_err("Invalid algorithm (%d)\n",
1666 sme->crypto.ciphers_pairwise[0]);
1667 return -EINVAL;
1668 }
1669 /* Set the new key/index */
1670 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1671 key.len, key.index, key.algo);
1672 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1673 err = send_key_to_dongle(netdev_priv(ndev), &key);
1674 if (err)
1675 return err;
1676
1677 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1678 brcmf_dbg(CONN, "set auth_type to shared key\n");
1679 val = WL_AUTH_SHARED_KEY; /* shared key */
1680 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1681 if (err)
1682 brcmf_err("set auth failed (%d)\n", err);
1683 }
1684 return err;
1685 }
1686
1687 static
1688 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1689 enum nl80211_auth_type type)
1690 {
1691 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1692 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1693 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1694 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1695 }
1696 return type;
1697 }
1698
1699 static s32
1700 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1701 struct cfg80211_connect_params *sme)
1702 {
1703 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1704 struct brcmf_if *ifp = netdev_priv(ndev);
1705 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1706 struct ieee80211_channel *chan = sme->channel;
1707 struct brcmf_join_params join_params;
1708 size_t join_params_size;
1709 const struct brcmf_tlv *rsn_ie;
1710 const struct brcmf_vs_tlv *wpa_ie;
1711 const void *ie;
1712 u32 ie_len;
1713 struct brcmf_ext_join_params_le *ext_join_params;
1714 u16 chanspec;
1715 s32 err = 0;
1716
1717 brcmf_dbg(TRACE, "Enter\n");
1718 if (!check_vif_up(ifp->vif))
1719 return -EIO;
1720
1721 if (!sme->ssid) {
1722 brcmf_err("Invalid ssid\n");
1723 return -EOPNOTSUPP;
1724 }
1725
1726 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1727 /* A normal (non P2P) connection request setup. */
1728 ie = NULL;
1729 ie_len = 0;
1730 /* find the WPA_IE */
1731 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1732 if (wpa_ie) {
1733 ie = wpa_ie;
1734 ie_len = wpa_ie->len + TLV_HDR_LEN;
1735 } else {
1736 /* find the RSN_IE */
1737 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1738 sme->ie_len,
1739 WLAN_EID_RSN);
1740 if (rsn_ie) {
1741 ie = rsn_ie;
1742 ie_len = rsn_ie->len + TLV_HDR_LEN;
1743 }
1744 }
1745 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1746 }
1747
1748 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1749 sme->ie, sme->ie_len);
1750 if (err)
1751 brcmf_err("Set Assoc REQ IE Failed\n");
1752 else
1753 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1754
1755 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1756
1757 if (chan) {
1758 cfg->channel =
1759 ieee80211_frequency_to_channel(chan->center_freq);
1760 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1761 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1762 cfg->channel, chan->center_freq, chanspec);
1763 } else {
1764 cfg->channel = 0;
1765 chanspec = 0;
1766 }
1767
1768 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1769
1770 err = brcmf_set_wpa_version(ndev, sme);
1771 if (err) {
1772 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1773 goto done;
1774 }
1775
1776 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1777 err = brcmf_set_auth_type(ndev, sme);
1778 if (err) {
1779 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1780 goto done;
1781 }
1782
1783 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1784 if (err) {
1785 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1786 goto done;
1787 }
1788
1789 err = brcmf_set_key_mgmt(ndev, sme);
1790 if (err) {
1791 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1792 goto done;
1793 }
1794
1795 err = brcmf_set_sharedkey(ndev, sme);
1796 if (err) {
1797 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1798 goto done;
1799 }
1800
1801 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1802 (u32)sme->ssid_len);
1803 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1804 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1805 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1806 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1807 profile->ssid.SSID_len);
1808 }
1809
1810 /* Join with specific BSSID and cached SSID
1811 * If SSID is zero join based on BSSID only
1812 */
1813 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1814 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1815 if (cfg->channel)
1816 join_params_size += sizeof(u16);
1817 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1818 if (ext_join_params == NULL) {
1819 err = -ENOMEM;
1820 goto done;
1821 }
1822 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1823 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1824 profile->ssid.SSID_len);
1825
1826 /* Set up join scan parameters */
1827 ext_join_params->scan_le.scan_type = -1;
1828 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1829
1830 if (sme->bssid)
1831 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1832 else
1833 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1834
1835 if (cfg->channel) {
1836 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1837
1838 ext_join_params->assoc_le.chanspec_list[0] =
1839 cpu_to_le16(chanspec);
1840 /* Increase dwell time to receive probe response or detect
1841 * beacon from target AP at a noisy air only during connect
1842 * command.
1843 */
1844 ext_join_params->scan_le.active_time =
1845 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1846 ext_join_params->scan_le.passive_time =
1847 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1848 /* To sync with presence period of VSDB GO send probe request
1849 * more frequently. Probe request will be stopped when it gets
1850 * probe response from target AP/GO.
1851 */
1852 ext_join_params->scan_le.nprobes =
1853 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1854 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1855 } else {
1856 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1857 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1858 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1859 }
1860
1861 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1862 join_params_size);
1863 kfree(ext_join_params);
1864 if (!err)
1865 /* This is it. join command worked, we are done */
1866 goto done;
1867
1868 /* join command failed, fallback to set ssid */
1869 memset(&join_params, 0, sizeof(join_params));
1870 join_params_size = sizeof(join_params.ssid_le);
1871
1872 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1873 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1874
1875 if (sme->bssid)
1876 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1877 else
1878 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1879
1880 if (cfg->channel) {
1881 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1882 join_params.params_le.chanspec_num = cpu_to_le32(1);
1883 join_params_size += sizeof(join_params.params_le);
1884 }
1885 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1886 &join_params, join_params_size);
1887 if (err)
1888 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1889
1890 done:
1891 if (err)
1892 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1893 brcmf_dbg(TRACE, "Exit\n");
1894 return err;
1895 }
1896
1897 static s32
1898 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1899 u16 reason_code)
1900 {
1901 struct brcmf_if *ifp = netdev_priv(ndev);
1902 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1903 struct brcmf_scb_val_le scbval;
1904 s32 err = 0;
1905
1906 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1907 if (!check_vif_up(ifp->vif))
1908 return -EIO;
1909
1910 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1911 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1912 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1913
1914 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1915 scbval.val = cpu_to_le32(reason_code);
1916 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1917 &scbval, sizeof(scbval));
1918 if (err)
1919 brcmf_err("error (%d)\n", err);
1920
1921 brcmf_dbg(TRACE, "Exit\n");
1922 return err;
1923 }
1924
1925 static s32
1926 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1927 enum nl80211_tx_power_setting type, s32 mbm)
1928 {
1929
1930 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1931 struct net_device *ndev = cfg_to_ndev(cfg);
1932 struct brcmf_if *ifp = netdev_priv(ndev);
1933 u16 txpwrmw;
1934 s32 err = 0;
1935 s32 disable = 0;
1936 s32 dbm = MBM_TO_DBM(mbm);
1937
1938 brcmf_dbg(TRACE, "Enter\n");
1939 if (!check_vif_up(ifp->vif))
1940 return -EIO;
1941
1942 switch (type) {
1943 case NL80211_TX_POWER_AUTOMATIC:
1944 break;
1945 case NL80211_TX_POWER_LIMITED:
1946 case NL80211_TX_POWER_FIXED:
1947 if (dbm < 0) {
1948 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1949 err = -EINVAL;
1950 goto done;
1951 }
1952 break;
1953 }
1954 /* Make sure radio is off or on as far as software is concerned */
1955 disable = WL_RADIO_SW_DISABLE << 16;
1956 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1957 if (err)
1958 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1959
1960 if (dbm > 0xffff)
1961 txpwrmw = 0xffff;
1962 else
1963 txpwrmw = (u16) dbm;
1964 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1965 (s32)brcmf_mw_to_qdbm(txpwrmw));
1966 if (err)
1967 brcmf_err("qtxpower error (%d)\n", err);
1968 cfg->conf->tx_power = dbm;
1969
1970 done:
1971 brcmf_dbg(TRACE, "Exit\n");
1972 return err;
1973 }
1974
1975 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1976 struct wireless_dev *wdev,
1977 s32 *dbm)
1978 {
1979 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1980 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1981 s32 txpwrdbm;
1982 u8 result;
1983 s32 err = 0;
1984
1985 brcmf_dbg(TRACE, "Enter\n");
1986 if (!check_vif_up(ifp->vif))
1987 return -EIO;
1988
1989 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1990 if (err) {
1991 brcmf_err("error (%d)\n", err);
1992 goto done;
1993 }
1994
1995 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1996 *dbm = (s32) brcmf_qdbm_to_mw(result);
1997
1998 done:
1999 brcmf_dbg(TRACE, "Exit\n");
2000 return err;
2001 }
2002
2003 static s32
2004 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2005 u8 key_idx, bool unicast, bool multicast)
2006 {
2007 struct brcmf_if *ifp = netdev_priv(ndev);
2008 u32 index;
2009 u32 wsec;
2010 s32 err = 0;
2011
2012 brcmf_dbg(TRACE, "Enter\n");
2013 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2014 if (!check_vif_up(ifp->vif))
2015 return -EIO;
2016
2017 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2018 if (err) {
2019 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2020 goto done;
2021 }
2022
2023 if (wsec & WEP_ENABLED) {
2024 /* Just select a new current key */
2025 index = key_idx;
2026 err = brcmf_fil_cmd_int_set(ifp,
2027 BRCMF_C_SET_KEY_PRIMARY, index);
2028 if (err)
2029 brcmf_err("error (%d)\n", err);
2030 }
2031 done:
2032 brcmf_dbg(TRACE, "Exit\n");
2033 return err;
2034 }
2035
2036 static s32
2037 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
2038 u8 key_idx, const u8 *mac_addr, struct key_params *params)
2039 {
2040 struct brcmf_if *ifp = netdev_priv(ndev);
2041 struct brcmf_wsec_key key;
2042 s32 err = 0;
2043 u8 keybuf[8];
2044
2045 memset(&key, 0, sizeof(key));
2046 key.index = (u32) key_idx;
2047 /* Instead of bcast for ea address for default wep keys,
2048 driver needs it to be Null */
2049 if (!is_multicast_ether_addr(mac_addr))
2050 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
2051 key.len = (u32) params->key_len;
2052 /* check for key index change */
2053 if (key.len == 0) {
2054 /* key delete */
2055 err = send_key_to_dongle(ifp, &key);
2056 if (err)
2057 brcmf_err("key delete error (%d)\n", err);
2058 } else {
2059 if (key.len > sizeof(key.data)) {
2060 brcmf_err("Invalid key length (%d)\n", key.len);
2061 return -EINVAL;
2062 }
2063
2064 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
2065 memcpy(key.data, params->key, key.len);
2066
2067 if (!brcmf_is_apmode(ifp->vif) &&
2068 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
2069 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2070 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2071 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2072 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2073 }
2074
2075 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
2076 if (params->seq && params->seq_len == 6) {
2077 /* rx iv */
2078 u8 *ivptr;
2079 ivptr = (u8 *) params->seq;
2080 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
2081 (ivptr[3] << 8) | ivptr[2];
2082 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
2083 key.iv_initialized = true;
2084 }
2085
2086 switch (params->cipher) {
2087 case WLAN_CIPHER_SUITE_WEP40:
2088 key.algo = CRYPTO_ALGO_WEP1;
2089 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2090 break;
2091 case WLAN_CIPHER_SUITE_WEP104:
2092 key.algo = CRYPTO_ALGO_WEP128;
2093 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2094 break;
2095 case WLAN_CIPHER_SUITE_TKIP:
2096 key.algo = CRYPTO_ALGO_TKIP;
2097 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2098 break;
2099 case WLAN_CIPHER_SUITE_AES_CMAC:
2100 key.algo = CRYPTO_ALGO_AES_CCM;
2101 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2102 break;
2103 case WLAN_CIPHER_SUITE_CCMP:
2104 key.algo = CRYPTO_ALGO_AES_CCM;
2105 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2106 break;
2107 default:
2108 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2109 return -EINVAL;
2110 }
2111 err = send_key_to_dongle(ifp, &key);
2112 if (err)
2113 brcmf_err("wsec_key error (%d)\n", err);
2114 }
2115 return err;
2116 }
2117
2118 static s32
2119 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2120 u8 key_idx, bool pairwise, const u8 *mac_addr,
2121 struct key_params *params)
2122 {
2123 struct brcmf_if *ifp = netdev_priv(ndev);
2124 struct brcmf_wsec_key *key;
2125 s32 val;
2126 s32 wsec;
2127 s32 err = 0;
2128 u8 keybuf[8];
2129
2130 brcmf_dbg(TRACE, "Enter\n");
2131 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2132 if (!check_vif_up(ifp->vif))
2133 return -EIO;
2134
2135 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2136 /* we ignore this key index in this case */
2137 brcmf_err("invalid key index (%d)\n", key_idx);
2138 return -EINVAL;
2139 }
2140
2141 if (mac_addr &&
2142 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2143 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2144 brcmf_dbg(TRACE, "Exit");
2145 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2146 }
2147
2148 key = &ifp->vif->profile.key[key_idx];
2149 memset(key, 0, sizeof(*key));
2150
2151 if (params->key_len > sizeof(key->data)) {
2152 brcmf_err("Too long key length (%u)\n", params->key_len);
2153 err = -EINVAL;
2154 goto done;
2155 }
2156 key->len = params->key_len;
2157 key->index = key_idx;
2158
2159 memcpy(key->data, params->key, key->len);
2160
2161 key->flags = BRCMF_PRIMARY_KEY;
2162 switch (params->cipher) {
2163 case WLAN_CIPHER_SUITE_WEP40:
2164 key->algo = CRYPTO_ALGO_WEP1;
2165 val = WEP_ENABLED;
2166 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2167 break;
2168 case WLAN_CIPHER_SUITE_WEP104:
2169 key->algo = CRYPTO_ALGO_WEP128;
2170 val = WEP_ENABLED;
2171 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2172 break;
2173 case WLAN_CIPHER_SUITE_TKIP:
2174 if (!brcmf_is_apmode(ifp->vif)) {
2175 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2176 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2177 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2178 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2179 }
2180 key->algo = CRYPTO_ALGO_TKIP;
2181 val = TKIP_ENABLED;
2182 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2183 break;
2184 case WLAN_CIPHER_SUITE_AES_CMAC:
2185 key->algo = CRYPTO_ALGO_AES_CCM;
2186 val = AES_ENABLED;
2187 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2188 break;
2189 case WLAN_CIPHER_SUITE_CCMP:
2190 key->algo = CRYPTO_ALGO_AES_CCM;
2191 val = AES_ENABLED;
2192 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2193 break;
2194 default:
2195 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2196 err = -EINVAL;
2197 goto done;
2198 }
2199
2200 err = send_key_to_dongle(ifp, key);
2201 if (err)
2202 goto done;
2203
2204 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2205 if (err) {
2206 brcmf_err("get wsec error (%d)\n", err);
2207 goto done;
2208 }
2209 wsec |= val;
2210 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2211 if (err) {
2212 brcmf_err("set wsec error (%d)\n", err);
2213 goto done;
2214 }
2215
2216 done:
2217 brcmf_dbg(TRACE, "Exit\n");
2218 return err;
2219 }
2220
2221 static s32
2222 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2223 u8 key_idx, bool pairwise, const u8 *mac_addr)
2224 {
2225 struct brcmf_if *ifp = netdev_priv(ndev);
2226 struct brcmf_wsec_key key;
2227 s32 err = 0;
2228
2229 brcmf_dbg(TRACE, "Enter\n");
2230 if (!check_vif_up(ifp->vif))
2231 return -EIO;
2232
2233 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2234 /* we ignore this key index in this case */
2235 brcmf_err("invalid key index (%d)\n", key_idx);
2236 return -EINVAL;
2237 }
2238
2239 memset(&key, 0, sizeof(key));
2240
2241 key.index = (u32) key_idx;
2242 key.flags = BRCMF_PRIMARY_KEY;
2243 key.algo = CRYPTO_ALGO_OFF;
2244
2245 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2246
2247 /* Set the new key/index */
2248 err = send_key_to_dongle(ifp, &key);
2249
2250 brcmf_dbg(TRACE, "Exit\n");
2251 return err;
2252 }
2253
2254 static s32
2255 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2256 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2257 void (*callback) (void *cookie, struct key_params * params))
2258 {
2259 struct key_params params;
2260 struct brcmf_if *ifp = netdev_priv(ndev);
2261 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2262 struct brcmf_cfg80211_security *sec;
2263 s32 wsec;
2264 s32 err = 0;
2265
2266 brcmf_dbg(TRACE, "Enter\n");
2267 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2268 if (!check_vif_up(ifp->vif))
2269 return -EIO;
2270
2271 memset(&params, 0, sizeof(params));
2272
2273 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2274 if (err) {
2275 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2276 /* Ignore this error, may happen during DISASSOC */
2277 err = -EAGAIN;
2278 goto done;
2279 }
2280 if (wsec & WEP_ENABLED) {
2281 sec = &profile->sec;
2282 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2283 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2284 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2285 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2286 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2287 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2288 }
2289 } else if (wsec & TKIP_ENABLED) {
2290 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2291 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2292 } else if (wsec & AES_ENABLED) {
2293 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2294 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2295 } else {
2296 brcmf_err("Invalid algo (0x%x)\n", wsec);
2297 err = -EINVAL;
2298 goto done;
2299 }
2300 callback(cookie, &params);
2301
2302 done:
2303 brcmf_dbg(TRACE, "Exit\n");
2304 return err;
2305 }
2306
2307 static s32
2308 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2309 struct net_device *ndev, u8 key_idx)
2310 {
2311 brcmf_dbg(INFO, "Not supported\n");
2312
2313 return -EOPNOTSUPP;
2314 }
2315
2316 static void
2317 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2318 {
2319 s32 err;
2320 u8 key_idx;
2321 struct brcmf_wsec_key *key;
2322 s32 wsec;
2323
2324 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2325 key = &ifp->vif->profile.key[key_idx];
2326 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2327 (key->algo == CRYPTO_ALGO_WEP128))
2328 break;
2329 }
2330 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2331 return;
2332
2333 err = send_key_to_dongle(ifp, key);
2334 if (err) {
2335 brcmf_err("Setting WEP key failed (%d)\n", err);
2336 return;
2337 }
2338 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2339 if (err) {
2340 brcmf_err("get wsec error (%d)\n", err);
2341 return;
2342 }
2343 wsec |= WEP_ENABLED;
2344 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2345 if (err)
2346 brcmf_err("set wsec error (%d)\n", err);
2347 }
2348
2349 static s32
2350 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2351 const u8 *mac, struct station_info *sinfo)
2352 {
2353 struct brcmf_if *ifp = netdev_priv(ndev);
2354 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2355 struct brcmf_scb_val_le scb_val;
2356 int rssi;
2357 s32 rate;
2358 s32 err = 0;
2359 u8 *bssid = profile->bssid;
2360 struct brcmf_sta_info_le sta_info_le;
2361 u32 beacon_period;
2362 u32 dtim_period;
2363
2364 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2365 if (!check_vif_up(ifp->vif))
2366 return -EIO;
2367
2368 if (brcmf_is_apmode(ifp->vif)) {
2369 memcpy(&sta_info_le, mac, ETH_ALEN);
2370 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2371 &sta_info_le,
2372 sizeof(sta_info_le));
2373 if (err < 0) {
2374 brcmf_err("GET STA INFO failed, %d\n", err);
2375 goto done;
2376 }
2377 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2378 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2379 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2380 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2381 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2382 }
2383 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2384 sinfo->inactive_time, sinfo->connected_time);
2385 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2386 if (memcmp(mac, bssid, ETH_ALEN)) {
2387 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2388 mac, bssid);
2389 err = -ENOENT;
2390 goto done;
2391 }
2392 /* Report the current tx rate */
2393 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2394 if (err) {
2395 brcmf_err("Could not get rate (%d)\n", err);
2396 goto done;
2397 } else {
2398 sinfo->filled |= STATION_INFO_TX_BITRATE;
2399 sinfo->txrate.legacy = rate * 5;
2400 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2401 }
2402
2403 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2404 &ifp->vif->sme_state)) {
2405 memset(&scb_val, 0, sizeof(scb_val));
2406 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2407 &scb_val, sizeof(scb_val));
2408 if (err) {
2409 brcmf_err("Could not get rssi (%d)\n", err);
2410 goto done;
2411 } else {
2412 rssi = le32_to_cpu(scb_val.val);
2413 sinfo->filled |= STATION_INFO_SIGNAL;
2414 sinfo->signal = rssi;
2415 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2416 }
2417 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2418 &beacon_period);
2419 if (err) {
2420 brcmf_err("Could not get beacon period (%d)\n",
2421 err);
2422 goto done;
2423 } else {
2424 sinfo->bss_param.beacon_interval =
2425 beacon_period;
2426 brcmf_dbg(CONN, "Beacon peroid %d\n",
2427 beacon_period);
2428 }
2429 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2430 &dtim_period);
2431 if (err) {
2432 brcmf_err("Could not get DTIM period (%d)\n",
2433 err);
2434 goto done;
2435 } else {
2436 sinfo->bss_param.dtim_period = dtim_period;
2437 brcmf_dbg(CONN, "DTIM peroid %d\n",
2438 dtim_period);
2439 }
2440 sinfo->filled |= STATION_INFO_BSS_PARAM;
2441 }
2442 } else
2443 err = -EPERM;
2444 done:
2445 brcmf_dbg(TRACE, "Exit\n");
2446 return err;
2447 }
2448
2449 static s32
2450 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2451 bool enabled, s32 timeout)
2452 {
2453 s32 pm;
2454 s32 err = 0;
2455 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2456 struct brcmf_if *ifp = netdev_priv(ndev);
2457
2458 brcmf_dbg(TRACE, "Enter\n");
2459
2460 /*
2461 * Powersave enable/disable request is coming from the
2462 * cfg80211 even before the interface is up. In that
2463 * scenario, driver will be storing the power save
2464 * preference in cfg struct to apply this to
2465 * FW later while initializing the dongle
2466 */
2467 cfg->pwr_save = enabled;
2468 if (!check_vif_up(ifp->vif)) {
2469
2470 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2471 goto done;
2472 }
2473
2474 pm = enabled ? PM_FAST : PM_OFF;
2475 /* Do not enable the power save after assoc if it is a p2p interface */
2476 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2477 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2478 pm = PM_OFF;
2479 }
2480 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2481
2482 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2483 if (err) {
2484 if (err == -ENODEV)
2485 brcmf_err("net_device is not ready yet\n");
2486 else
2487 brcmf_err("error (%d)\n", err);
2488 }
2489 done:
2490 brcmf_dbg(TRACE, "Exit\n");
2491 return err;
2492 }
2493
2494 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2495 struct brcmf_bss_info_le *bi)
2496 {
2497 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2498 struct ieee80211_channel *notify_channel;
2499 struct cfg80211_bss *bss;
2500 struct ieee80211_supported_band *band;
2501 struct brcmu_chan ch;
2502 u16 channel;
2503 u32 freq;
2504 u16 notify_capability;
2505 u16 notify_interval;
2506 u8 *notify_ie;
2507 size_t notify_ielen;
2508 s32 notify_signal;
2509
2510 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2511 brcmf_err("Bss info is larger than buffer. Discarding\n");
2512 return 0;
2513 }
2514
2515 if (!bi->ctl_ch) {
2516 ch.chspec = le16_to_cpu(bi->chanspec);
2517 cfg->d11inf.decchspec(&ch);
2518 bi->ctl_ch = ch.chnum;
2519 }
2520 channel = bi->ctl_ch;
2521
2522 if (channel <= CH_MAX_2G_CHANNEL)
2523 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2524 else
2525 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2526
2527 freq = ieee80211_channel_to_frequency(channel, band->band);
2528 notify_channel = ieee80211_get_channel(wiphy, freq);
2529
2530 notify_capability = le16_to_cpu(bi->capability);
2531 notify_interval = le16_to_cpu(bi->beacon_period);
2532 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2533 notify_ielen = le32_to_cpu(bi->ie_length);
2534 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2535
2536 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2537 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2538 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2539 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2540 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2541
2542 bss = cfg80211_inform_bss(wiphy, notify_channel,
2543 CFG80211_BSS_FTYPE_UNKNOWN,
2544 (const u8 *)bi->BSSID,
2545 0, notify_capability,
2546 notify_interval, notify_ie,
2547 notify_ielen, notify_signal,
2548 GFP_KERNEL);
2549
2550 if (!bss)
2551 return -ENOMEM;
2552
2553 cfg80211_put_bss(wiphy, bss);
2554
2555 return 0;
2556 }
2557
2558 static struct brcmf_bss_info_le *
2559 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2560 {
2561 if (bss == NULL)
2562 return list->bss_info_le;
2563 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2564 le32_to_cpu(bss->length));
2565 }
2566
2567 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2568 {
2569 struct brcmf_scan_results *bss_list;
2570 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2571 s32 err = 0;
2572 int i;
2573
2574 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2575 if (bss_list->count != 0 &&
2576 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2577 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2578 bss_list->version);
2579 return -EOPNOTSUPP;
2580 }
2581 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2582 for (i = 0; i < bss_list->count; i++) {
2583 bi = next_bss_le(bss_list, bi);
2584 err = brcmf_inform_single_bss(cfg, bi);
2585 if (err)
2586 break;
2587 }
2588 return err;
2589 }
2590
2591 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2592 struct net_device *ndev, const u8 *bssid)
2593 {
2594 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2595 struct ieee80211_channel *notify_channel;
2596 struct brcmf_bss_info_le *bi = NULL;
2597 struct ieee80211_supported_band *band;
2598 struct cfg80211_bss *bss;
2599 struct brcmu_chan ch;
2600 u8 *buf = NULL;
2601 s32 err = 0;
2602 u32 freq;
2603 u16 notify_capability;
2604 u16 notify_interval;
2605 u8 *notify_ie;
2606 size_t notify_ielen;
2607 s32 notify_signal;
2608
2609 brcmf_dbg(TRACE, "Enter\n");
2610
2611 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2612 if (buf == NULL) {
2613 err = -ENOMEM;
2614 goto CleanUp;
2615 }
2616
2617 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2618
2619 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2620 buf, WL_BSS_INFO_MAX);
2621 if (err) {
2622 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2623 goto CleanUp;
2624 }
2625
2626 bi = (struct brcmf_bss_info_le *)(buf + 4);
2627
2628 ch.chspec = le16_to_cpu(bi->chanspec);
2629 cfg->d11inf.decchspec(&ch);
2630
2631 if (ch.band == BRCMU_CHAN_BAND_2G)
2632 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2633 else
2634 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2635
2636 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2637 notify_channel = ieee80211_get_channel(wiphy, freq);
2638
2639 notify_capability = le16_to_cpu(bi->capability);
2640 notify_interval = le16_to_cpu(bi->beacon_period);
2641 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2642 notify_ielen = le32_to_cpu(bi->ie_length);
2643 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2644
2645 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2646 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2647 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2648 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2649
2650 bss = cfg80211_inform_bss(wiphy, notify_channel,
2651 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2652 notify_capability, notify_interval,
2653 notify_ie, notify_ielen, notify_signal,
2654 GFP_KERNEL);
2655
2656 if (!bss) {
2657 err = -ENOMEM;
2658 goto CleanUp;
2659 }
2660
2661 cfg80211_put_bss(wiphy, bss);
2662
2663 CleanUp:
2664
2665 kfree(buf);
2666
2667 brcmf_dbg(TRACE, "Exit\n");
2668
2669 return err;
2670 }
2671
2672 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2673 struct brcmf_if *ifp)
2674 {
2675 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2676 struct brcmf_bss_info_le *bi;
2677 struct brcmf_ssid *ssid;
2678 const struct brcmf_tlv *tim;
2679 u16 beacon_interval;
2680 u8 dtim_period;
2681 size_t ie_len;
2682 u8 *ie;
2683 s32 err = 0;
2684
2685 brcmf_dbg(TRACE, "Enter\n");
2686 if (brcmf_is_ibssmode(ifp->vif))
2687 return err;
2688
2689 ssid = &profile->ssid;
2690
2691 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2692 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2693 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2694 if (err) {
2695 brcmf_err("Could not get bss info %d\n", err);
2696 goto update_bss_info_out;
2697 }
2698
2699 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2700 err = brcmf_inform_single_bss(cfg, bi);
2701 if (err)
2702 goto update_bss_info_out;
2703
2704 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2705 ie_len = le32_to_cpu(bi->ie_length);
2706 beacon_interval = le16_to_cpu(bi->beacon_period);
2707
2708 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2709 if (tim)
2710 dtim_period = tim->data[1];
2711 else {
2712 /*
2713 * active scan was done so we could not get dtim
2714 * information out of probe response.
2715 * so we speficially query dtim information to dongle.
2716 */
2717 u32 var;
2718 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2719 if (err) {
2720 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2721 goto update_bss_info_out;
2722 }
2723 dtim_period = (u8)var;
2724 }
2725
2726 update_bss_info_out:
2727 brcmf_dbg(TRACE, "Exit");
2728 return err;
2729 }
2730
2731 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2732 {
2733 struct escan_info *escan = &cfg->escan_info;
2734
2735 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2736 if (cfg->scan_request) {
2737 escan->escan_state = WL_ESCAN_STATE_IDLE;
2738 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2739 }
2740 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2741 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2742 }
2743
2744 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2745 {
2746 struct brcmf_cfg80211_info *cfg =
2747 container_of(work, struct brcmf_cfg80211_info,
2748 escan_timeout_work);
2749
2750 brcmf_inform_bss(cfg);
2751 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2752 }
2753
2754 static void brcmf_escan_timeout(unsigned long data)
2755 {
2756 struct brcmf_cfg80211_info *cfg =
2757 (struct brcmf_cfg80211_info *)data;
2758
2759 if (cfg->scan_request) {
2760 brcmf_err("timer expired\n");
2761 schedule_work(&cfg->escan_timeout_work);
2762 }
2763 }
2764
2765 static s32
2766 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2767 struct brcmf_bss_info_le *bss,
2768 struct brcmf_bss_info_le *bss_info_le)
2769 {
2770 struct brcmu_chan ch_bss, ch_bss_info_le;
2771
2772 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2773 cfg->d11inf.decchspec(&ch_bss);
2774 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2775 cfg->d11inf.decchspec(&ch_bss_info_le);
2776
2777 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2778 ch_bss.band == ch_bss_info_le.band &&
2779 bss_info_le->SSID_len == bss->SSID_len &&
2780 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2781 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2782 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2783 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2784 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2785
2786 /* preserve max RSSI if the measurements are
2787 * both on-channel or both off-channel
2788 */
2789 if (bss_info_rssi > bss_rssi)
2790 bss->RSSI = bss_info_le->RSSI;
2791 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2792 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2793 /* preserve the on-channel rssi measurement
2794 * if the new measurement is off channel
2795 */
2796 bss->RSSI = bss_info_le->RSSI;
2797 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2798 }
2799 return 1;
2800 }
2801 return 0;
2802 }
2803
2804 static s32
2805 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2806 const struct brcmf_event_msg *e, void *data)
2807 {
2808 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2809 s32 status;
2810 struct brcmf_escan_result_le *escan_result_le;
2811 struct brcmf_bss_info_le *bss_info_le;
2812 struct brcmf_bss_info_le *bss = NULL;
2813 u32 bi_length;
2814 struct brcmf_scan_results *list;
2815 u32 i;
2816 bool aborted;
2817
2818 status = e->status;
2819
2820 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2821 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2822 return -EPERM;
2823 }
2824
2825 if (status == BRCMF_E_STATUS_PARTIAL) {
2826 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2827 escan_result_le = (struct brcmf_escan_result_le *) data;
2828 if (!escan_result_le) {
2829 brcmf_err("Invalid escan result (NULL pointer)\n");
2830 goto exit;
2831 }
2832 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2833 brcmf_err("Invalid bss_count %d: ignoring\n",
2834 escan_result_le->bss_count);
2835 goto exit;
2836 }
2837 bss_info_le = &escan_result_le->bss_info_le;
2838
2839 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2840 goto exit;
2841
2842 if (!cfg->scan_request) {
2843 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2844 goto exit;
2845 }
2846
2847 bi_length = le32_to_cpu(bss_info_le->length);
2848 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2849 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2850 brcmf_err("Invalid bss_info length %d: ignoring\n",
2851 bi_length);
2852 goto exit;
2853 }
2854
2855 if (!(cfg_to_wiphy(cfg)->interface_modes &
2856 BIT(NL80211_IFTYPE_ADHOC))) {
2857 if (le16_to_cpu(bss_info_le->capability) &
2858 WLAN_CAPABILITY_IBSS) {
2859 brcmf_err("Ignoring IBSS result\n");
2860 goto exit;
2861 }
2862 }
2863
2864 list = (struct brcmf_scan_results *)
2865 cfg->escan_info.escan_buf;
2866 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2867 brcmf_err("Buffer is too small: ignoring\n");
2868 goto exit;
2869 }
2870
2871 for (i = 0; i < list->count; i++) {
2872 bss = bss ? (struct brcmf_bss_info_le *)
2873 ((unsigned char *)bss +
2874 le32_to_cpu(bss->length)) : list->bss_info_le;
2875 if (brcmf_compare_update_same_bss(cfg, bss,
2876 bss_info_le))
2877 goto exit;
2878 }
2879 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2880 bss_info_le, bi_length);
2881 list->version = le32_to_cpu(bss_info_le->version);
2882 list->buflen += bi_length;
2883 list->count++;
2884 } else {
2885 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2886 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2887 goto exit;
2888 if (cfg->scan_request) {
2889 brcmf_inform_bss(cfg);
2890 aborted = status != BRCMF_E_STATUS_SUCCESS;
2891 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2892 } else
2893 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2894 status);
2895 }
2896 exit:
2897 return 0;
2898 }
2899
2900 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2901 {
2902 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2903 brcmf_cfg80211_escan_handler);
2904 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2905 /* Init scan_timeout timer */
2906 init_timer(&cfg->escan_timeout);
2907 cfg->escan_timeout.data = (unsigned long) cfg;
2908 cfg->escan_timeout.function = brcmf_escan_timeout;
2909 INIT_WORK(&cfg->escan_timeout_work,
2910 brcmf_cfg80211_escan_timeout_worker);
2911 }
2912
2913 static __always_inline void brcmf_delay(u32 ms)
2914 {
2915 if (ms < 1000 / HZ) {
2916 cond_resched();
2917 mdelay(ms);
2918 } else {
2919 msleep(ms);
2920 }
2921 }
2922
2923 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2924 u8 *pattern, u32 patternsize, u8 *mask,
2925 u32 packet_offset)
2926 {
2927 struct brcmf_fil_wowl_pattern_le *filter;
2928 u32 masksize;
2929 u32 patternoffset;
2930 u8 *buf;
2931 u32 bufsize;
2932 s32 ret;
2933
2934 masksize = (patternsize + 7) / 8;
2935 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2936
2937 bufsize = sizeof(*filter) + patternsize + masksize;
2938 buf = kzalloc(bufsize, GFP_KERNEL);
2939 if (!buf)
2940 return -ENOMEM;
2941 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2942
2943 memcpy(filter->cmd, cmd, 4);
2944 filter->masksize = cpu_to_le32(masksize);
2945 filter->offset = cpu_to_le32(packet_offset);
2946 filter->patternoffset = cpu_to_le32(patternoffset);
2947 filter->patternsize = cpu_to_le32(patternsize);
2948 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2949
2950 if ((mask) && (masksize))
2951 memcpy(buf + sizeof(*filter), mask, masksize);
2952 if ((pattern) && (patternsize))
2953 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2954
2955 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2956
2957 kfree(buf);
2958 return ret;
2959 }
2960
2961 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2962 {
2963 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2964 struct net_device *ndev = cfg_to_ndev(cfg);
2965 struct brcmf_if *ifp = netdev_priv(ndev);
2966
2967 brcmf_dbg(TRACE, "Enter\n");
2968
2969 if (cfg->wowl_enabled) {
2970 brcmf_configure_arp_offload(ifp, true);
2971 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2972 cfg->pre_wowl_pmmode);
2973 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2974 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2975 cfg->wowl_enabled = false;
2976 }
2977 return 0;
2978 }
2979
2980 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2981 struct brcmf_if *ifp,
2982 struct cfg80211_wowlan *wowl)
2983 {
2984 u32 wowl_config;
2985 u32 i;
2986
2987 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
2988
2989 brcmf_configure_arp_offload(ifp, false);
2990 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
2991 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
2992
2993 wowl_config = 0;
2994 if (wowl->disconnect)
2995 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
2996 if (wowl->magic_pkt)
2997 wowl_config |= BRCMF_WOWL_MAGIC;
2998 if ((wowl->patterns) && (wowl->n_patterns)) {
2999 wowl_config |= BRCMF_WOWL_NET;
3000 for (i = 0; i < wowl->n_patterns; i++) {
3001 brcmf_config_wowl_pattern(ifp, "add",
3002 (u8 *)wowl->patterns[i].pattern,
3003 wowl->patterns[i].pattern_len,
3004 (u8 *)wowl->patterns[i].mask,
3005 wowl->patterns[i].pkt_offset);
3006 }
3007 }
3008 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3009 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3010 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3011 cfg->wowl_enabled = true;
3012 }
3013
3014 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3015 struct cfg80211_wowlan *wowl)
3016 {
3017 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3018 struct net_device *ndev = cfg_to_ndev(cfg);
3019 struct brcmf_if *ifp = netdev_priv(ndev);
3020 struct brcmf_cfg80211_vif *vif;
3021
3022 brcmf_dbg(TRACE, "Enter\n");
3023
3024 /* if the primary net_device is not READY there is nothing
3025 * we can do but pray resume goes smoothly.
3026 */
3027 if (!check_vif_up(ifp->vif))
3028 goto exit;
3029
3030 /* end any scanning */
3031 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3032 brcmf_abort_scanning(cfg);
3033
3034 if (wowl == NULL) {
3035 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3036 list_for_each_entry(vif, &cfg->vif_list, list) {
3037 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3038 continue;
3039 /* While going to suspend if associated with AP
3040 * disassociate from AP to save power while system is
3041 * in suspended state
3042 */
3043 brcmf_link_down(vif);
3044 /* Make sure WPA_Supplicant receives all the event
3045 * generated due to DISASSOC call to the fw to keep
3046 * the state fw and WPA_Supplicant state consistent
3047 */
3048 brcmf_delay(500);
3049 }
3050 /* Configure MPC */
3051 brcmf_set_mpc(ifp, 1);
3052
3053 } else {
3054 /* Configure WOWL paramaters */
3055 brcmf_configure_wowl(cfg, ifp, wowl);
3056 }
3057
3058 exit:
3059 brcmf_dbg(TRACE, "Exit\n");
3060 /* clear any scanning activity */
3061 cfg->scan_status = 0;
3062 return 0;
3063 }
3064
3065 static __used s32
3066 brcmf_update_pmklist(struct net_device *ndev,
3067 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3068 {
3069 int i, j;
3070 u32 pmkid_len;
3071
3072 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3073
3074 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
3075 for (i = 0; i < pmkid_len; i++) {
3076 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
3077 &pmk_list->pmkids.pmkid[i].BSSID);
3078 for (j = 0; j < WLAN_PMKID_LEN; j++)
3079 brcmf_dbg(CONN, "%02x\n",
3080 pmk_list->pmkids.pmkid[i].PMKID[j]);
3081 }
3082
3083 if (!err)
3084 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3085 (char *)pmk_list, sizeof(*pmk_list));
3086
3087 return err;
3088 }
3089
3090 static s32
3091 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3092 struct cfg80211_pmksa *pmksa)
3093 {
3094 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3095 struct brcmf_if *ifp = netdev_priv(ndev);
3096 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3097 s32 err = 0;
3098 u32 pmkid_len, i;
3099
3100 brcmf_dbg(TRACE, "Enter\n");
3101 if (!check_vif_up(ifp->vif))
3102 return -EIO;
3103
3104 pmkid_len = le32_to_cpu(pmkids->npmkid);
3105 for (i = 0; i < pmkid_len; i++)
3106 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3107 break;
3108 if (i < WL_NUM_PMKIDS_MAX) {
3109 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3110 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3111 if (i == pmkid_len) {
3112 pmkid_len++;
3113 pmkids->npmkid = cpu_to_le32(pmkid_len);
3114 }
3115 } else
3116 err = -EINVAL;
3117
3118 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3119 pmkids->pmkid[pmkid_len].BSSID);
3120 for (i = 0; i < WLAN_PMKID_LEN; i++)
3121 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3122
3123 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3124
3125 brcmf_dbg(TRACE, "Exit\n");
3126 return err;
3127 }
3128
3129 static s32
3130 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3131 struct cfg80211_pmksa *pmksa)
3132 {
3133 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3134 struct brcmf_if *ifp = netdev_priv(ndev);
3135 struct pmkid_list pmkid;
3136 s32 err = 0;
3137 u32 pmkid_len, i;
3138
3139 brcmf_dbg(TRACE, "Enter\n");
3140 if (!check_vif_up(ifp->vif))
3141 return -EIO;
3142
3143 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3144 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3145
3146 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3147 &pmkid.pmkid[0].BSSID);
3148 for (i = 0; i < WLAN_PMKID_LEN; i++)
3149 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3150
3151 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3152 for (i = 0; i < pmkid_len; i++)
3153 if (!memcmp
3154 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3155 ETH_ALEN))
3156 break;
3157
3158 if ((pmkid_len > 0)
3159 && (i < pmkid_len)) {
3160 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3161 sizeof(struct pmkid));
3162 for (; i < (pmkid_len - 1); i++) {
3163 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3164 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3165 ETH_ALEN);
3166 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3167 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3168 WLAN_PMKID_LEN);
3169 }
3170 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3171 } else
3172 err = -EINVAL;
3173
3174 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3175
3176 brcmf_dbg(TRACE, "Exit\n");
3177 return err;
3178
3179 }
3180
3181 static s32
3182 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3183 {
3184 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3185 struct brcmf_if *ifp = netdev_priv(ndev);
3186 s32 err = 0;
3187
3188 brcmf_dbg(TRACE, "Enter\n");
3189 if (!check_vif_up(ifp->vif))
3190 return -EIO;
3191
3192 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3193 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3194
3195 brcmf_dbg(TRACE, "Exit\n");
3196 return err;
3197
3198 }
3199
3200 /*
3201 * PFN result doesn't have all the info which are
3202 * required by the supplicant
3203 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3204 * via wl_inform_single_bss in the required format. Escan does require the
3205 * scan request in the form of cfg80211_scan_request. For timebeing, create
3206 * cfg80211_scan_request one out of the received PNO event.
3207 */
3208 static s32
3209 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3210 const struct brcmf_event_msg *e, void *data)
3211 {
3212 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3213 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3214 struct cfg80211_scan_request *request = NULL;
3215 struct cfg80211_ssid *ssid = NULL;
3216 struct ieee80211_channel *channel = NULL;
3217 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3218 int err = 0;
3219 int channel_req = 0;
3220 int band = 0;
3221 struct brcmf_pno_scanresults_le *pfn_result;
3222 u32 result_count;
3223 u32 status;
3224
3225 brcmf_dbg(SCAN, "Enter\n");
3226
3227 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3228 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3229 return 0;
3230 }
3231
3232 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3233 result_count = le32_to_cpu(pfn_result->count);
3234 status = le32_to_cpu(pfn_result->status);
3235
3236 /*
3237 * PFN event is limited to fit 512 bytes so we may get
3238 * multiple NET_FOUND events. For now place a warning here.
3239 */
3240 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3241 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3242 if (result_count > 0) {
3243 int i;
3244
3245 request = kzalloc(sizeof(*request), GFP_KERNEL);
3246 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3247 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3248 if (!request || !ssid || !channel) {
3249 err = -ENOMEM;
3250 goto out_err;
3251 }
3252
3253 request->wiphy = wiphy;
3254 data += sizeof(struct brcmf_pno_scanresults_le);
3255 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3256
3257 for (i = 0; i < result_count; i++) {
3258 netinfo = &netinfo_start[i];
3259 if (!netinfo) {
3260 brcmf_err("Invalid netinfo ptr. index: %d\n",
3261 i);
3262 err = -EINVAL;
3263 goto out_err;
3264 }
3265
3266 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3267 netinfo->SSID, netinfo->channel);
3268 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3269 ssid[i].ssid_len = netinfo->SSID_len;
3270 request->n_ssids++;
3271
3272 channel_req = netinfo->channel;
3273 if (channel_req <= CH_MAX_2G_CHANNEL)
3274 band = NL80211_BAND_2GHZ;
3275 else
3276 band = NL80211_BAND_5GHZ;
3277 channel[i].center_freq =
3278 ieee80211_channel_to_frequency(channel_req,
3279 band);
3280 channel[i].band = band;
3281 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3282 request->channels[i] = &channel[i];
3283 request->n_channels++;
3284 }
3285
3286 /* assign parsed ssid array */
3287 if (request->n_ssids)
3288 request->ssids = &ssid[0];
3289
3290 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3291 /* Abort any on-going scan */
3292 brcmf_abort_scanning(cfg);
3293 }
3294
3295 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3296 cfg->escan_info.run = brcmf_run_escan;
3297 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3298 if (err) {
3299 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3300 goto out_err;
3301 }
3302 cfg->sched_escan = true;
3303 cfg->scan_request = request;
3304 } else {
3305 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3306 goto out_err;
3307 }
3308
3309 kfree(ssid);
3310 kfree(channel);
3311 kfree(request);
3312 return 0;
3313
3314 out_err:
3315 kfree(ssid);
3316 kfree(channel);
3317 kfree(request);
3318 cfg80211_sched_scan_stopped(wiphy);
3319 return err;
3320 }
3321
3322 static int brcmf_dev_pno_clean(struct net_device *ndev)
3323 {
3324 int ret;
3325
3326 /* Disable pfn */
3327 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3328 if (ret == 0) {
3329 /* clear pfn */
3330 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3331 NULL, 0);
3332 }
3333 if (ret < 0)
3334 brcmf_err("failed code %d\n", ret);
3335
3336 return ret;
3337 }
3338
3339 static int brcmf_dev_pno_config(struct net_device *ndev)
3340 {
3341 struct brcmf_pno_param_le pfn_param;
3342
3343 memset(&pfn_param, 0, sizeof(pfn_param));
3344 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3345
3346 /* set extra pno params */
3347 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3348 pfn_param.repeat = BRCMF_PNO_REPEAT;
3349 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3350
3351 /* set up pno scan fr */
3352 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3353
3354 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3355 &pfn_param, sizeof(pfn_param));
3356 }
3357
3358 static int
3359 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3360 struct net_device *ndev,
3361 struct cfg80211_sched_scan_request *request)
3362 {
3363 struct brcmf_if *ifp = netdev_priv(ndev);
3364 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3365 struct brcmf_pno_net_param_le pfn;
3366 int i;
3367 int ret = 0;
3368
3369 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3370 request->n_match_sets, request->n_ssids);
3371 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3372 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3373 return -EAGAIN;
3374 }
3375 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3376 brcmf_err("Scanning suppressed: status (%lu)\n",
3377 cfg->scan_status);
3378 return -EAGAIN;
3379 }
3380
3381 if (!request->n_ssids || !request->n_match_sets) {
3382 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3383 request->n_ssids);
3384 return -EINVAL;
3385 }
3386
3387 if (request->n_ssids > 0) {
3388 for (i = 0; i < request->n_ssids; i++) {
3389 /* Active scan req for ssids */
3390 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3391 request->ssids[i].ssid);
3392
3393 /*
3394 * match_set ssids is a supert set of n_ssid list,
3395 * so we need not add these set seperately.
3396 */
3397 }
3398 }
3399
3400 if (request->n_match_sets > 0) {
3401 /* clean up everything */
3402 ret = brcmf_dev_pno_clean(ndev);
3403 if (ret < 0) {
3404 brcmf_err("failed error=%d\n", ret);
3405 return ret;
3406 }
3407
3408 /* configure pno */
3409 ret = brcmf_dev_pno_config(ndev);
3410 if (ret < 0) {
3411 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3412 return -EINVAL;
3413 }
3414
3415 /* configure each match set */
3416 for (i = 0; i < request->n_match_sets; i++) {
3417 struct cfg80211_ssid *ssid;
3418 u32 ssid_len;
3419
3420 ssid = &request->match_sets[i].ssid;
3421 ssid_len = ssid->ssid_len;
3422
3423 if (!ssid_len) {
3424 brcmf_err("skip broadcast ssid\n");
3425 continue;
3426 }
3427 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3428 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3429 pfn.wsec = cpu_to_le32(0);
3430 pfn.infra = cpu_to_le32(1);
3431 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3432 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3433 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3434 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3435 sizeof(pfn));
3436 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3437 ret == 0 ? "set" : "failed", ssid->ssid);
3438 }
3439 /* Enable the PNO */
3440 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3441 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3442 return -EINVAL;
3443 }
3444 } else {
3445 return -EINVAL;
3446 }
3447
3448 return 0;
3449 }
3450
3451 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3452 struct net_device *ndev)
3453 {
3454 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3455
3456 brcmf_dbg(SCAN, "enter\n");
3457 brcmf_dev_pno_clean(ndev);
3458 if (cfg->sched_escan)
3459 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3460 return 0;
3461 }
3462
3463 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3464 {
3465 s32 err;
3466
3467 /* set auth */
3468 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3469 if (err < 0) {
3470 brcmf_err("auth error %d\n", err);
3471 return err;
3472 }
3473 /* set wsec */
3474 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3475 if (err < 0) {
3476 brcmf_err("wsec error %d\n", err);
3477 return err;
3478 }
3479 /* set upper-layer auth */
3480 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3481 if (err < 0) {
3482 brcmf_err("wpa_auth error %d\n", err);
3483 return err;
3484 }
3485
3486 return 0;
3487 }
3488
3489 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3490 {
3491 if (is_rsn_ie)
3492 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3493
3494 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3495 }
3496
3497 static s32
3498 brcmf_configure_wpaie(struct brcmf_if *ifp,
3499 const struct brcmf_vs_tlv *wpa_ie,
3500 bool is_rsn_ie)
3501 {
3502 u32 auth = 0; /* d11 open authentication */
3503 u16 count;
3504 s32 err = 0;
3505 s32 len = 0;
3506 u32 i;
3507 u32 wsec;
3508 u32 pval = 0;
3509 u32 gval = 0;
3510 u32 wpa_auth = 0;
3511 u32 offset;
3512 u8 *data;
3513 u16 rsn_cap;
3514 u32 wme_bss_disable;
3515
3516 brcmf_dbg(TRACE, "Enter\n");
3517 if (wpa_ie == NULL)
3518 goto exit;
3519
3520 len = wpa_ie->len + TLV_HDR_LEN;
3521 data = (u8 *)wpa_ie;
3522 offset = TLV_HDR_LEN;
3523 if (!is_rsn_ie)
3524 offset += VS_IE_FIXED_HDR_LEN;
3525 else
3526 offset += WPA_IE_VERSION_LEN;
3527
3528 /* check for multicast cipher suite */
3529 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3530 err = -EINVAL;
3531 brcmf_err("no multicast cipher suite\n");
3532 goto exit;
3533 }
3534
3535 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3536 err = -EINVAL;
3537 brcmf_err("ivalid OUI\n");
3538 goto exit;
3539 }
3540 offset += TLV_OUI_LEN;
3541
3542 /* pick up multicast cipher */
3543 switch (data[offset]) {
3544 case WPA_CIPHER_NONE:
3545 gval = 0;
3546 break;
3547 case WPA_CIPHER_WEP_40:
3548 case WPA_CIPHER_WEP_104:
3549 gval = WEP_ENABLED;
3550 break;
3551 case WPA_CIPHER_TKIP:
3552 gval = TKIP_ENABLED;
3553 break;
3554 case WPA_CIPHER_AES_CCM:
3555 gval = AES_ENABLED;
3556 break;
3557 default:
3558 err = -EINVAL;
3559 brcmf_err("Invalid multi cast cipher info\n");
3560 goto exit;
3561 }
3562
3563 offset++;
3564 /* walk thru unicast cipher list and pick up what we recognize */
3565 count = data[offset] + (data[offset + 1] << 8);
3566 offset += WPA_IE_SUITE_COUNT_LEN;
3567 /* Check for unicast suite(s) */
3568 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3569 err = -EINVAL;
3570 brcmf_err("no unicast cipher suite\n");
3571 goto exit;
3572 }
3573 for (i = 0; i < count; i++) {
3574 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3575 err = -EINVAL;
3576 brcmf_err("ivalid OUI\n");
3577 goto exit;
3578 }
3579 offset += TLV_OUI_LEN;
3580 switch (data[offset]) {
3581 case WPA_CIPHER_NONE:
3582 break;
3583 case WPA_CIPHER_WEP_40:
3584 case WPA_CIPHER_WEP_104:
3585 pval |= WEP_ENABLED;
3586 break;
3587 case WPA_CIPHER_TKIP:
3588 pval |= TKIP_ENABLED;
3589 break;
3590 case WPA_CIPHER_AES_CCM:
3591 pval |= AES_ENABLED;
3592 break;
3593 default:
3594 brcmf_err("Ivalid unicast security info\n");
3595 }
3596 offset++;
3597 }
3598 /* walk thru auth management suite list and pick up what we recognize */
3599 count = data[offset] + (data[offset + 1] << 8);
3600 offset += WPA_IE_SUITE_COUNT_LEN;
3601 /* Check for auth key management suite(s) */
3602 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3603 err = -EINVAL;
3604 brcmf_err("no auth key mgmt suite\n");
3605 goto exit;
3606 }
3607 for (i = 0; i < count; i++) {
3608 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3609 err = -EINVAL;
3610 brcmf_err("ivalid OUI\n");
3611 goto exit;
3612 }
3613 offset += TLV_OUI_LEN;
3614 switch (data[offset]) {
3615 case RSN_AKM_NONE:
3616 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3617 wpa_auth |= WPA_AUTH_NONE;
3618 break;
3619 case RSN_AKM_UNSPECIFIED:
3620 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3621 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3622 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3623 break;
3624 case RSN_AKM_PSK:
3625 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3626 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3627 (wpa_auth |= WPA_AUTH_PSK);
3628 break;
3629 default:
3630 brcmf_err("Ivalid key mgmt info\n");
3631 }
3632 offset++;
3633 }
3634
3635 if (is_rsn_ie) {
3636 wme_bss_disable = 1;
3637 if ((offset + RSN_CAP_LEN) <= len) {
3638 rsn_cap = data[offset] + (data[offset + 1] << 8);
3639 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3640 wme_bss_disable = 0;
3641 }
3642 /* set wme_bss_disable to sync RSN Capabilities */
3643 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3644 wme_bss_disable);
3645 if (err < 0) {
3646 brcmf_err("wme_bss_disable error %d\n", err);
3647 goto exit;
3648 }
3649 }
3650 /* FOR WPS , set SES_OW_ENABLED */
3651 wsec = (pval | gval | SES_OW_ENABLED);
3652
3653 /* set auth */
3654 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3655 if (err < 0) {
3656 brcmf_err("auth error %d\n", err);
3657 goto exit;
3658 }
3659 /* set wsec */
3660 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3661 if (err < 0) {
3662 brcmf_err("wsec error %d\n", err);
3663 goto exit;
3664 }
3665 /* set upper-layer auth */
3666 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3667 if (err < 0) {
3668 brcmf_err("wpa_auth error %d\n", err);
3669 goto exit;
3670 }
3671
3672 exit:
3673 return err;
3674 }
3675
3676 static s32
3677 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3678 struct parsed_vndr_ies *vndr_ies)
3679 {
3680 struct brcmf_vs_tlv *vndrie;
3681 struct brcmf_tlv *ie;
3682 struct parsed_vndr_ie_info *parsed_info;
3683 s32 remaining_len;
3684
3685 remaining_len = (s32)vndr_ie_len;
3686 memset(vndr_ies, 0, sizeof(*vndr_ies));
3687
3688 ie = (struct brcmf_tlv *)vndr_ie_buf;
3689 while (ie) {
3690 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3691 goto next;
3692 vndrie = (struct brcmf_vs_tlv *)ie;
3693 /* len should be bigger than OUI length + one */
3694 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3695 brcmf_err("invalid vndr ie. length is too small %d\n",
3696 vndrie->len);
3697 goto next;
3698 }
3699 /* if wpa or wme ie, do not add ie */
3700 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3701 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3702 (vndrie->oui_type == WME_OUI_TYPE))) {
3703 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3704 goto next;
3705 }
3706
3707 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3708
3709 /* save vndr ie information */
3710 parsed_info->ie_ptr = (char *)vndrie;
3711 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3712 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3713
3714 vndr_ies->count++;
3715
3716 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3717 parsed_info->vndrie.oui[0],
3718 parsed_info->vndrie.oui[1],
3719 parsed_info->vndrie.oui[2],
3720 parsed_info->vndrie.oui_type);
3721
3722 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3723 break;
3724 next:
3725 remaining_len -= (ie->len + TLV_HDR_LEN);
3726 if (remaining_len <= TLV_HDR_LEN)
3727 ie = NULL;
3728 else
3729 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3730 TLV_HDR_LEN);
3731 }
3732 return 0;
3733 }
3734
3735 static u32
3736 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3737 {
3738
3739 __le32 iecount_le;
3740 __le32 pktflag_le;
3741
3742 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3743 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3744
3745 iecount_le = cpu_to_le32(1);
3746 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3747
3748 pktflag_le = cpu_to_le32(pktflag);
3749 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3750
3751 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3752
3753 return ie_len + VNDR_IE_HDR_SIZE;
3754 }
3755
3756 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3757 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3758 {
3759 struct brcmf_if *ifp;
3760 struct vif_saved_ie *saved_ie;
3761 s32 err = 0;
3762 u8 *iovar_ie_buf;
3763 u8 *curr_ie_buf;
3764 u8 *mgmt_ie_buf = NULL;
3765 int mgmt_ie_buf_len;
3766 u32 *mgmt_ie_len;
3767 u32 del_add_ie_buf_len = 0;
3768 u32 total_ie_buf_len = 0;
3769 u32 parsed_ie_buf_len = 0;
3770 struct parsed_vndr_ies old_vndr_ies;
3771 struct parsed_vndr_ies new_vndr_ies;
3772 struct parsed_vndr_ie_info *vndrie_info;
3773 s32 i;
3774 u8 *ptr;
3775 int remained_buf_len;
3776
3777 if (!vif)
3778 return -ENODEV;
3779 ifp = vif->ifp;
3780 saved_ie = &vif->saved_ie;
3781
3782 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3783 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3784 if (!iovar_ie_buf)
3785 return -ENOMEM;
3786 curr_ie_buf = iovar_ie_buf;
3787 switch (pktflag) {
3788 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3789 mgmt_ie_buf = saved_ie->probe_req_ie;
3790 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3791 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3792 break;
3793 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3794 mgmt_ie_buf = saved_ie->probe_res_ie;
3795 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3796 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3797 break;
3798 case BRCMF_VNDR_IE_BEACON_FLAG:
3799 mgmt_ie_buf = saved_ie->beacon_ie;
3800 mgmt_ie_len = &saved_ie->beacon_ie_len;
3801 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3802 break;
3803 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3804 mgmt_ie_buf = saved_ie->assoc_req_ie;
3805 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3806 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3807 break;
3808 default:
3809 err = -EPERM;
3810 brcmf_err("not suitable type\n");
3811 goto exit;
3812 }
3813
3814 if (vndr_ie_len > mgmt_ie_buf_len) {
3815 err = -ENOMEM;
3816 brcmf_err("extra IE size too big\n");
3817 goto exit;
3818 }
3819
3820 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3821 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3822 ptr = curr_ie_buf;
3823 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3824 for (i = 0; i < new_vndr_ies.count; i++) {
3825 vndrie_info = &new_vndr_ies.ie_info[i];
3826 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3827 vndrie_info->ie_len);
3828 parsed_ie_buf_len += vndrie_info->ie_len;
3829 }
3830 }
3831
3832 if (mgmt_ie_buf && *mgmt_ie_len) {
3833 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3834 (memcmp(mgmt_ie_buf, curr_ie_buf,
3835 parsed_ie_buf_len) == 0)) {
3836 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3837 goto exit;
3838 }
3839
3840 /* parse old vndr_ie */
3841 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3842
3843 /* make a command to delete old ie */
3844 for (i = 0; i < old_vndr_ies.count; i++) {
3845 vndrie_info = &old_vndr_ies.ie_info[i];
3846
3847 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3848 vndrie_info->vndrie.id,
3849 vndrie_info->vndrie.len,
3850 vndrie_info->vndrie.oui[0],
3851 vndrie_info->vndrie.oui[1],
3852 vndrie_info->vndrie.oui[2]);
3853
3854 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3855 vndrie_info->ie_ptr,
3856 vndrie_info->ie_len,
3857 "del");
3858 curr_ie_buf += del_add_ie_buf_len;
3859 total_ie_buf_len += del_add_ie_buf_len;
3860 }
3861 }
3862
3863 *mgmt_ie_len = 0;
3864 /* Add if there is any extra IE */
3865 if (mgmt_ie_buf && parsed_ie_buf_len) {
3866 ptr = mgmt_ie_buf;
3867
3868 remained_buf_len = mgmt_ie_buf_len;
3869
3870 /* make a command to add new ie */
3871 for (i = 0; i < new_vndr_ies.count; i++) {
3872 vndrie_info = &new_vndr_ies.ie_info[i];
3873
3874 /* verify remained buf size before copy data */
3875 if (remained_buf_len < (vndrie_info->vndrie.len +
3876 VNDR_IE_VSIE_OFFSET)) {
3877 brcmf_err("no space in mgmt_ie_buf: len left %d",
3878 remained_buf_len);
3879 break;
3880 }
3881 remained_buf_len -= (vndrie_info->ie_len +
3882 VNDR_IE_VSIE_OFFSET);
3883
3884 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3885 vndrie_info->vndrie.id,
3886 vndrie_info->vndrie.len,
3887 vndrie_info->vndrie.oui[0],
3888 vndrie_info->vndrie.oui[1],
3889 vndrie_info->vndrie.oui[2]);
3890
3891 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3892 vndrie_info->ie_ptr,
3893 vndrie_info->ie_len,
3894 "add");
3895
3896 /* save the parsed IE in wl struct */
3897 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3898 vndrie_info->ie_len);
3899 *mgmt_ie_len += vndrie_info->ie_len;
3900
3901 curr_ie_buf += del_add_ie_buf_len;
3902 total_ie_buf_len += del_add_ie_buf_len;
3903 }
3904 }
3905 if (total_ie_buf_len) {
3906 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3907 total_ie_buf_len);
3908 if (err)
3909 brcmf_err("vndr ie set error : %d\n", err);
3910 }
3911
3912 exit:
3913 kfree(iovar_ie_buf);
3914 return err;
3915 }
3916
3917 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3918 {
3919 s32 pktflags[] = {
3920 BRCMF_VNDR_IE_PRBREQ_FLAG,
3921 BRCMF_VNDR_IE_PRBRSP_FLAG,
3922 BRCMF_VNDR_IE_BEACON_FLAG
3923 };
3924 int i;
3925
3926 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3927 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3928
3929 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3930 return 0;
3931 }
3932
3933 static s32
3934 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3935 struct cfg80211_beacon_data *beacon)
3936 {
3937 s32 err;
3938
3939 /* Set Beacon IEs to FW */
3940 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3941 beacon->tail, beacon->tail_len);
3942 if (err) {
3943 brcmf_err("Set Beacon IE Failed\n");
3944 return err;
3945 }
3946 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3947
3948 /* Set Probe Response IEs to FW */
3949 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3950 beacon->proberesp_ies,
3951 beacon->proberesp_ies_len);
3952 if (err)
3953 brcmf_err("Set Probe Resp IE Failed\n");
3954 else
3955 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3956
3957 return err;
3958 }
3959
3960 static s32
3961 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3962 struct cfg80211_ap_settings *settings)
3963 {
3964 s32 ie_offset;
3965 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3966 struct brcmf_if *ifp = netdev_priv(ndev);
3967 const struct brcmf_tlv *ssid_ie;
3968 struct brcmf_ssid_le ssid_le;
3969 s32 err = -EPERM;
3970 const struct brcmf_tlv *rsn_ie;
3971 const struct brcmf_vs_tlv *wpa_ie;
3972 struct brcmf_join_params join_params;
3973 enum nl80211_iftype dev_role;
3974 struct brcmf_fil_bss_enable_le bss_enable;
3975 u16 chanspec;
3976 bool mbss;
3977
3978 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3979 settings->chandef.chan->hw_value,
3980 settings->chandef.center_freq1, settings->chandef.width,
3981 settings->beacon_interval, settings->dtim_period);
3982 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3983 settings->ssid, settings->ssid_len, settings->auth_type,
3984 settings->inactivity_timeout);
3985 dev_role = ifp->vif->wdev.iftype;
3986 mbss = ifp->vif->mbss;
3987
3988 memset(&ssid_le, 0, sizeof(ssid_le));
3989 if (settings->ssid == NULL || settings->ssid_len == 0) {
3990 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3991 ssid_ie = brcmf_parse_tlvs(
3992 (u8 *)&settings->beacon.head[ie_offset],
3993 settings->beacon.head_len - ie_offset,
3994 WLAN_EID_SSID);
3995 if (!ssid_ie)
3996 return -EINVAL;
3997
3998 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3999 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4000 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4001 } else {
4002 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4003 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4004 }
4005
4006 if (!mbss) {
4007 brcmf_set_mpc(ifp, 0);
4008 brcmf_configure_arp_offload(ifp, false);
4009 }
4010
4011 /* find the RSN_IE */
4012 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4013 settings->beacon.tail_len, WLAN_EID_RSN);
4014
4015 /* find the WPA_IE */
4016 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4017 settings->beacon.tail_len);
4018
4019 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4020 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4021 if (wpa_ie != NULL) {
4022 /* WPA IE */
4023 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4024 if (err < 0)
4025 goto exit;
4026 } else {
4027 struct brcmf_vs_tlv *tmp_ie;
4028
4029 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4030
4031 /* RSN IE */
4032 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4033 if (err < 0)
4034 goto exit;
4035 }
4036 } else {
4037 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4038 brcmf_configure_opensecurity(ifp);
4039 }
4040
4041 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4042
4043 if (!mbss) {
4044 chanspec = chandef_to_chanspec(&cfg->d11inf,
4045 &settings->chandef);
4046 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4047 if (err < 0) {
4048 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4049 chanspec, err);
4050 goto exit;
4051 }
4052
4053 if (settings->beacon_interval) {
4054 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4055 settings->beacon_interval);
4056 if (err < 0) {
4057 brcmf_err("Beacon Interval Set Error, %d\n",
4058 err);
4059 goto exit;
4060 }
4061 }
4062 if (settings->dtim_period) {
4063 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4064 settings->dtim_period);
4065 if (err < 0) {
4066 brcmf_err("DTIM Interval Set Error, %d\n", err);
4067 goto exit;
4068 }
4069 }
4070
4071 if (dev_role == NL80211_IFTYPE_AP) {
4072 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4073 if (err < 0) {
4074 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4075 goto exit;
4076 }
4077 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4078 }
4079
4080 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4081 if (err < 0) {
4082 brcmf_err("SET INFRA error %d\n", err);
4083 goto exit;
4084 }
4085 }
4086 if (dev_role == NL80211_IFTYPE_AP) {
4087 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4088 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4089
4090 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4091 if (err < 0) {
4092 brcmf_err("setting AP mode failed %d\n", err);
4093 goto exit;
4094 }
4095 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4096 if (err < 0) {
4097 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4098 goto exit;
4099 }
4100 /* On DOWN the firmware removes the WEP keys, reconfigure
4101 * them if they were set.
4102 */
4103 brcmf_cfg80211_reconfigure_wep(ifp);
4104
4105 memset(&join_params, 0, sizeof(join_params));
4106 /* join parameters starts with ssid */
4107 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4108 /* create softap */
4109 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4110 &join_params, sizeof(join_params));
4111 if (err < 0) {
4112 brcmf_err("SET SSID error (%d)\n", err);
4113 goto exit;
4114 }
4115 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4116 } else {
4117 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4118 sizeof(ssid_le));
4119 if (err < 0) {
4120 brcmf_err("setting ssid failed %d\n", err);
4121 goto exit;
4122 }
4123 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4124 bss_enable.enable = cpu_to_le32(1);
4125 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4126 sizeof(bss_enable));
4127 if (err < 0) {
4128 brcmf_err("bss_enable config failed %d\n", err);
4129 goto exit;
4130 }
4131
4132 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4133 }
4134 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4135 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4136
4137 exit:
4138 if ((err) && (!mbss)) {
4139 brcmf_set_mpc(ifp, 1);
4140 brcmf_configure_arp_offload(ifp, true);
4141 }
4142 return err;
4143 }
4144
4145 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4146 {
4147 struct brcmf_if *ifp = netdev_priv(ndev);
4148 s32 err;
4149 struct brcmf_fil_bss_enable_le bss_enable;
4150 struct brcmf_join_params join_params;
4151
4152 brcmf_dbg(TRACE, "Enter\n");
4153
4154 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4155 /* Due to most likely deauths outstanding we sleep */
4156 /* first to make sure they get processed by fw. */
4157 msleep(400);
4158
4159 if (ifp->vif->mbss) {
4160 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4161 return err;
4162 }
4163
4164 memset(&join_params, 0, sizeof(join_params));
4165 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4166 &join_params, sizeof(join_params));
4167 if (err < 0)
4168 brcmf_err("SET SSID error (%d)\n", err);
4169 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4170 if (err < 0)
4171 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4172 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4173 if (err < 0)
4174 brcmf_err("setting AP mode failed %d\n", err);
4175 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4176 if (err < 0)
4177 brcmf_err("setting INFRA mode failed %d\n", err);
4178 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4179 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4180 /* Bring device back up so it can be used again */
4181 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4182 if (err < 0)
4183 brcmf_err("BRCMF_C_UP error %d\n", err);
4184 } else {
4185 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4186 bss_enable.enable = cpu_to_le32(0);
4187 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4188 sizeof(bss_enable));
4189 if (err < 0)
4190 brcmf_err("bss_enable config failed %d\n", err);
4191 }
4192 brcmf_set_mpc(ifp, 1);
4193 brcmf_configure_arp_offload(ifp, true);
4194 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4195 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4196
4197 return err;
4198 }
4199
4200 static s32
4201 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4202 struct cfg80211_beacon_data *info)
4203 {
4204 struct brcmf_if *ifp = netdev_priv(ndev);
4205 s32 err;
4206
4207 brcmf_dbg(TRACE, "Enter\n");
4208
4209 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4210
4211 return err;
4212 }
4213
4214 static int
4215 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4216 struct station_del_parameters *params)
4217 {
4218 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4219 struct brcmf_scb_val_le scbval;
4220 struct brcmf_if *ifp = netdev_priv(ndev);
4221 s32 err;
4222
4223 if (!params->mac)
4224 return -EFAULT;
4225
4226 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4227
4228 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4229 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4230 if (!check_vif_up(ifp->vif))
4231 return -EIO;
4232
4233 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4234 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4235 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4236 &scbval, sizeof(scbval));
4237 if (err)
4238 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4239
4240 brcmf_dbg(TRACE, "Exit\n");
4241 return err;
4242 }
4243
4244
4245 static void
4246 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4247 struct wireless_dev *wdev,
4248 u16 frame_type, bool reg)
4249 {
4250 struct brcmf_cfg80211_vif *vif;
4251 u16 mgmt_type;
4252
4253 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4254
4255 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4256 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4257 if (reg)
4258 vif->mgmt_rx_reg |= BIT(mgmt_type);
4259 else
4260 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4261 }
4262
4263
4264 static int
4265 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4266 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4267 {
4268 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4269 struct ieee80211_channel *chan = params->chan;
4270 const u8 *buf = params->buf;
4271 size_t len = params->len;
4272 const struct ieee80211_mgmt *mgmt;
4273 struct brcmf_cfg80211_vif *vif;
4274 s32 err = 0;
4275 s32 ie_offset;
4276 s32 ie_len;
4277 struct brcmf_fil_action_frame_le *action_frame;
4278 struct brcmf_fil_af_params_le *af_params;
4279 bool ack;
4280 s32 chan_nr;
4281 u32 freq;
4282
4283 brcmf_dbg(TRACE, "Enter\n");
4284
4285 *cookie = 0;
4286
4287 mgmt = (const struct ieee80211_mgmt *)buf;
4288
4289 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4290 brcmf_err("Driver only allows MGMT packet type\n");
4291 return -EPERM;
4292 }
4293
4294 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4295
4296 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4297 /* Right now the only reason to get a probe response */
4298 /* is for p2p listen response or for p2p GO from */
4299 /* wpa_supplicant. Unfortunately the probe is send */
4300 /* on primary ndev, while dongle wants it on the p2p */
4301 /* vif. Since this is only reason for a probe */
4302 /* response to be sent, the vif is taken from cfg. */
4303 /* If ever desired to send proberesp for non p2p */
4304 /* response then data should be checked for */
4305 /* "DIRECT-". Note in future supplicant will take */
4306 /* dedicated p2p wdev to do this and then this 'hack'*/
4307 /* is not needed anymore. */
4308 ie_offset = DOT11_MGMT_HDR_LEN +
4309 DOT11_BCN_PRB_FIXED_LEN;
4310 ie_len = len - ie_offset;
4311 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4312 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4313 err = brcmf_vif_set_mgmt_ie(vif,
4314 BRCMF_VNDR_IE_PRBRSP_FLAG,
4315 &buf[ie_offset],
4316 ie_len);
4317 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4318 GFP_KERNEL);
4319 } else if (ieee80211_is_action(mgmt->frame_control)) {
4320 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4321 if (af_params == NULL) {
4322 brcmf_err("unable to allocate frame\n");
4323 err = -ENOMEM;
4324 goto exit;
4325 }
4326 action_frame = &af_params->action_frame;
4327 /* Add the packet Id */
4328 action_frame->packet_id = cpu_to_le32(*cookie);
4329 /* Add BSSID */
4330 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4331 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4332 /* Add the length exepted for 802.11 header */
4333 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4334 /* Add the channel. Use the one specified as parameter if any or
4335 * the current one (got from the firmware) otherwise
4336 */
4337 if (chan)
4338 freq = chan->center_freq;
4339 else
4340 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4341 &freq);
4342 chan_nr = ieee80211_frequency_to_channel(freq);
4343 af_params->channel = cpu_to_le32(chan_nr);
4344
4345 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4346 le16_to_cpu(action_frame->len));
4347
4348 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4349 *cookie, le16_to_cpu(action_frame->len), freq);
4350
4351 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4352 af_params);
4353
4354 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4355 GFP_KERNEL);
4356 kfree(af_params);
4357 } else {
4358 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4359 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4360 }
4361
4362 exit:
4363 return err;
4364 }
4365
4366
4367 static int
4368 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4369 struct wireless_dev *wdev,
4370 u64 cookie)
4371 {
4372 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4373 struct brcmf_cfg80211_vif *vif;
4374 int err = 0;
4375
4376 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4377
4378 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4379 if (vif == NULL) {
4380 brcmf_err("No p2p device available for probe response\n");
4381 err = -ENODEV;
4382 goto exit;
4383 }
4384 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4385 exit:
4386 return err;
4387 }
4388
4389 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4390 struct wireless_dev *wdev,
4391 enum nl80211_crit_proto_id proto,
4392 u16 duration)
4393 {
4394 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4395 struct brcmf_cfg80211_vif *vif;
4396
4397 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4398
4399 /* only DHCP support for now */
4400 if (proto != NL80211_CRIT_PROTO_DHCP)
4401 return -EINVAL;
4402
4403 /* suppress and abort scanning */
4404 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4405 brcmf_abort_scanning(cfg);
4406
4407 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4408 }
4409
4410 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4411 struct wireless_dev *wdev)
4412 {
4413 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4414 struct brcmf_cfg80211_vif *vif;
4415
4416 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4417
4418 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4419 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4420 }
4421
4422 static s32
4423 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4424 const struct brcmf_event_msg *e, void *data)
4425 {
4426 switch (e->reason) {
4427 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4428 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4429 break;
4430 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4431 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4432 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4433 break;
4434 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4435 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4436 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4437 break;
4438 }
4439
4440 return 0;
4441 }
4442
4443 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4444 {
4445 int ret;
4446
4447 switch (oper) {
4448 case NL80211_TDLS_DISCOVERY_REQ:
4449 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4450 break;
4451 case NL80211_TDLS_SETUP:
4452 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4453 break;
4454 case NL80211_TDLS_TEARDOWN:
4455 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4456 break;
4457 default:
4458 brcmf_err("unsupported operation: %d\n", oper);
4459 ret = -EOPNOTSUPP;
4460 }
4461 return ret;
4462 }
4463
4464 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4465 struct net_device *ndev, const u8 *peer,
4466 enum nl80211_tdls_operation oper)
4467 {
4468 struct brcmf_if *ifp;
4469 struct brcmf_tdls_iovar_le info;
4470 int ret = 0;
4471
4472 ret = brcmf_convert_nl80211_tdls_oper(oper);
4473 if (ret < 0)
4474 return ret;
4475
4476 ifp = netdev_priv(ndev);
4477 memset(&info, 0, sizeof(info));
4478 info.mode = (u8)ret;
4479 if (peer)
4480 memcpy(info.ea, peer, ETH_ALEN);
4481
4482 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4483 &info, sizeof(info));
4484 if (ret < 0)
4485 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4486
4487 return ret;
4488 }
4489
4490 static struct cfg80211_ops wl_cfg80211_ops = {
4491 .add_virtual_intf = brcmf_cfg80211_add_iface,
4492 .del_virtual_intf = brcmf_cfg80211_del_iface,
4493 .change_virtual_intf = brcmf_cfg80211_change_iface,
4494 .scan = brcmf_cfg80211_scan,
4495 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4496 .join_ibss = brcmf_cfg80211_join_ibss,
4497 .leave_ibss = brcmf_cfg80211_leave_ibss,
4498 .get_station = brcmf_cfg80211_get_station,
4499 .set_tx_power = brcmf_cfg80211_set_tx_power,
4500 .get_tx_power = brcmf_cfg80211_get_tx_power,
4501 .add_key = brcmf_cfg80211_add_key,
4502 .del_key = brcmf_cfg80211_del_key,
4503 .get_key = brcmf_cfg80211_get_key,
4504 .set_default_key = brcmf_cfg80211_config_default_key,
4505 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4506 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4507 .connect = brcmf_cfg80211_connect,
4508 .disconnect = brcmf_cfg80211_disconnect,
4509 .suspend = brcmf_cfg80211_suspend,
4510 .resume = brcmf_cfg80211_resume,
4511 .set_pmksa = brcmf_cfg80211_set_pmksa,
4512 .del_pmksa = brcmf_cfg80211_del_pmksa,
4513 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4514 .start_ap = brcmf_cfg80211_start_ap,
4515 .stop_ap = brcmf_cfg80211_stop_ap,
4516 .change_beacon = brcmf_cfg80211_change_beacon,
4517 .del_station = brcmf_cfg80211_del_station,
4518 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4519 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4520 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4521 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4522 .remain_on_channel = brcmf_p2p_remain_on_channel,
4523 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4524 .start_p2p_device = brcmf_p2p_start_device,
4525 .stop_p2p_device = brcmf_p2p_stop_device,
4526 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4527 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4528 .tdls_oper = brcmf_cfg80211_tdls_oper,
4529 };
4530
4531 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4532 enum nl80211_iftype type,
4533 bool pm_block)
4534 {
4535 struct brcmf_cfg80211_vif *vif_walk;
4536 struct brcmf_cfg80211_vif *vif;
4537 bool mbss;
4538
4539 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4540 sizeof(*vif));
4541 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4542 if (!vif)
4543 return ERR_PTR(-ENOMEM);
4544
4545 vif->wdev.wiphy = cfg->wiphy;
4546 vif->wdev.iftype = type;
4547
4548 vif->pm_block = pm_block;
4549 vif->roam_off = -1;
4550
4551 brcmf_init_prof(&vif->profile);
4552
4553 if (type == NL80211_IFTYPE_AP) {
4554 mbss = false;
4555 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
4556 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
4557 mbss = true;
4558 break;
4559 }
4560 }
4561 vif->mbss = mbss;
4562 }
4563
4564 list_add_tail(&vif->list, &cfg->vif_list);
4565 return vif;
4566 }
4567
4568 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4569 {
4570 list_del(&vif->list);
4571 kfree(vif);
4572 }
4573
4574 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4575 {
4576 struct brcmf_cfg80211_vif *vif;
4577 struct brcmf_if *ifp;
4578
4579 ifp = netdev_priv(ndev);
4580 vif = ifp->vif;
4581
4582 brcmf_free_vif(vif);
4583 free_netdev(ndev);
4584 }
4585
4586 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4587 {
4588 u32 event = e->event_code;
4589 u32 status = e->status;
4590
4591 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4592 brcmf_dbg(CONN, "Processing set ssid\n");
4593 return true;
4594 }
4595
4596 return false;
4597 }
4598
4599 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4600 {
4601 u32 event = e->event_code;
4602 u16 flags = e->flags;
4603
4604 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4605 (event == BRCMF_E_DISASSOC_IND) ||
4606 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4607 brcmf_dbg(CONN, "Processing link down\n");
4608 return true;
4609 }
4610 return false;
4611 }
4612
4613 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4614 const struct brcmf_event_msg *e)
4615 {
4616 u32 event = e->event_code;
4617 u32 status = e->status;
4618
4619 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4620 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4621 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4622 return true;
4623 }
4624
4625 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4626 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4627 return true;
4628 }
4629
4630 return false;
4631 }
4632
4633 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4634 {
4635 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4636
4637 kfree(conn_info->req_ie);
4638 conn_info->req_ie = NULL;
4639 conn_info->req_ie_len = 0;
4640 kfree(conn_info->resp_ie);
4641 conn_info->resp_ie = NULL;
4642 conn_info->resp_ie_len = 0;
4643 }
4644
4645 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4646 struct brcmf_if *ifp)
4647 {
4648 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4649 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4650 u32 req_len;
4651 u32 resp_len;
4652 s32 err = 0;
4653
4654 brcmf_clear_assoc_ies(cfg);
4655
4656 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4657 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4658 if (err) {
4659 brcmf_err("could not get assoc info (%d)\n", err);
4660 return err;
4661 }
4662 assoc_info =
4663 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4664 req_len = le32_to_cpu(assoc_info->req_len);
4665 resp_len = le32_to_cpu(assoc_info->resp_len);
4666 if (req_len) {
4667 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4668 cfg->extra_buf,
4669 WL_ASSOC_INFO_MAX);
4670 if (err) {
4671 brcmf_err("could not get assoc req (%d)\n", err);
4672 return err;
4673 }
4674 conn_info->req_ie_len = req_len;
4675 conn_info->req_ie =
4676 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4677 GFP_KERNEL);
4678 } else {
4679 conn_info->req_ie_len = 0;
4680 conn_info->req_ie = NULL;
4681 }
4682 if (resp_len) {
4683 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4684 cfg->extra_buf,
4685 WL_ASSOC_INFO_MAX);
4686 if (err) {
4687 brcmf_err("could not get assoc resp (%d)\n", err);
4688 return err;
4689 }
4690 conn_info->resp_ie_len = resp_len;
4691 conn_info->resp_ie =
4692 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4693 GFP_KERNEL);
4694 } else {
4695 conn_info->resp_ie_len = 0;
4696 conn_info->resp_ie = NULL;
4697 }
4698 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4699 conn_info->req_ie_len, conn_info->resp_ie_len);
4700
4701 return err;
4702 }
4703
4704 static s32
4705 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4706 struct net_device *ndev,
4707 const struct brcmf_event_msg *e)
4708 {
4709 struct brcmf_if *ifp = netdev_priv(ndev);
4710 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4711 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4712 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4713 struct ieee80211_channel *notify_channel = NULL;
4714 struct ieee80211_supported_band *band;
4715 struct brcmf_bss_info_le *bi;
4716 struct brcmu_chan ch;
4717 u32 freq;
4718 s32 err = 0;
4719 u8 *buf;
4720
4721 brcmf_dbg(TRACE, "Enter\n");
4722
4723 brcmf_get_assoc_ies(cfg, ifp);
4724 memcpy(profile->bssid, e->addr, ETH_ALEN);
4725 brcmf_update_bss_info(cfg, ifp);
4726
4727 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4728 if (buf == NULL) {
4729 err = -ENOMEM;
4730 goto done;
4731 }
4732
4733 /* data sent to dongle has to be little endian */
4734 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4735 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4736 buf, WL_BSS_INFO_MAX);
4737
4738 if (err)
4739 goto done;
4740
4741 bi = (struct brcmf_bss_info_le *)(buf + 4);
4742 ch.chspec = le16_to_cpu(bi->chanspec);
4743 cfg->d11inf.decchspec(&ch);
4744
4745 if (ch.band == BRCMU_CHAN_BAND_2G)
4746 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4747 else
4748 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4749
4750 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4751 notify_channel = ieee80211_get_channel(wiphy, freq);
4752
4753 done:
4754 kfree(buf);
4755 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4756 conn_info->req_ie, conn_info->req_ie_len,
4757 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4758 brcmf_dbg(CONN, "Report roaming result\n");
4759
4760 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4761 brcmf_dbg(TRACE, "Exit\n");
4762 return err;
4763 }
4764
4765 static s32
4766 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4767 struct net_device *ndev, const struct brcmf_event_msg *e,
4768 bool completed)
4769 {
4770 struct brcmf_if *ifp = netdev_priv(ndev);
4771 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4772 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4773
4774 brcmf_dbg(TRACE, "Enter\n");
4775
4776 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4777 &ifp->vif->sme_state)) {
4778 if (completed) {
4779 brcmf_get_assoc_ies(cfg, ifp);
4780 memcpy(profile->bssid, e->addr, ETH_ALEN);
4781 brcmf_update_bss_info(cfg, ifp);
4782 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4783 &ifp->vif->sme_state);
4784 }
4785 cfg80211_connect_result(ndev,
4786 (u8 *)profile->bssid,
4787 conn_info->req_ie,
4788 conn_info->req_ie_len,
4789 conn_info->resp_ie,
4790 conn_info->resp_ie_len,
4791 completed ? WLAN_STATUS_SUCCESS :
4792 WLAN_STATUS_AUTH_TIMEOUT,
4793 GFP_KERNEL);
4794 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4795 completed ? "succeeded" : "failed");
4796 }
4797 brcmf_dbg(TRACE, "Exit\n");
4798 return 0;
4799 }
4800
4801 static s32
4802 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4803 struct net_device *ndev,
4804 const struct brcmf_event_msg *e, void *data)
4805 {
4806 struct brcmf_if *ifp = netdev_priv(ndev);
4807 static int generation;
4808 u32 event = e->event_code;
4809 u32 reason = e->reason;
4810 struct station_info sinfo;
4811
4812 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4813 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4814 ndev != cfg_to_ndev(cfg)) {
4815 brcmf_dbg(CONN, "AP mode link down\n");
4816 complete(&cfg->vif_disabled);
4817 if (ifp->vif->mbss)
4818 brcmf_remove_interface(ifp->drvr, ifp->bssidx);
4819 return 0;
4820 }
4821
4822 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4823 (reason == BRCMF_E_STATUS_SUCCESS)) {
4824 memset(&sinfo, 0, sizeof(sinfo));
4825 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4826 if (!data) {
4827 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4828 return -EINVAL;
4829 }
4830 sinfo.assoc_req_ies = data;
4831 sinfo.assoc_req_ies_len = e->datalen;
4832 generation++;
4833 sinfo.generation = generation;
4834 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4835 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4836 (event == BRCMF_E_DEAUTH_IND) ||
4837 (event == BRCMF_E_DEAUTH)) {
4838 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4839 }
4840 return 0;
4841 }
4842
4843 static s32
4844 brcmf_notify_connect_status(struct brcmf_if *ifp,
4845 const struct brcmf_event_msg *e, void *data)
4846 {
4847 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4848 struct net_device *ndev = ifp->ndev;
4849 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4850 struct ieee80211_channel *chan;
4851 s32 err = 0;
4852
4853 if ((e->event_code == BRCMF_E_DEAUTH) ||
4854 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4855 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4856 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4857 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4858 }
4859
4860 if (brcmf_is_apmode(ifp->vif)) {
4861 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4862 } else if (brcmf_is_linkup(e)) {
4863 brcmf_dbg(CONN, "Linkup\n");
4864 if (brcmf_is_ibssmode(ifp->vif)) {
4865 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4866 memcpy(profile->bssid, e->addr, ETH_ALEN);
4867 wl_inform_ibss(cfg, ndev, e->addr);
4868 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4869 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4870 &ifp->vif->sme_state);
4871 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4872 &ifp->vif->sme_state);
4873 } else
4874 brcmf_bss_connect_done(cfg, ndev, e, true);
4875 } else if (brcmf_is_linkdown(e)) {
4876 brcmf_dbg(CONN, "Linkdown\n");
4877 if (!brcmf_is_ibssmode(ifp->vif)) {
4878 brcmf_bss_connect_done(cfg, ndev, e, false);
4879 }
4880 brcmf_link_down(ifp->vif);
4881 brcmf_init_prof(ndev_to_prof(ndev));
4882 if (ndev != cfg_to_ndev(cfg))
4883 complete(&cfg->vif_disabled);
4884 } else if (brcmf_is_nonetwork(cfg, e)) {
4885 if (brcmf_is_ibssmode(ifp->vif))
4886 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4887 &ifp->vif->sme_state);
4888 else
4889 brcmf_bss_connect_done(cfg, ndev, e, false);
4890 }
4891
4892 return err;
4893 }
4894
4895 static s32
4896 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4897 const struct brcmf_event_msg *e, void *data)
4898 {
4899 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4900 u32 event = e->event_code;
4901 u32 status = e->status;
4902
4903 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4904 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4905 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4906 else
4907 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4908 }
4909
4910 return 0;
4911 }
4912
4913 static s32
4914 brcmf_notify_mic_status(struct brcmf_if *ifp,
4915 const struct brcmf_event_msg *e, void *data)
4916 {
4917 u16 flags = e->flags;
4918 enum nl80211_key_type key_type;
4919
4920 if (flags & BRCMF_EVENT_MSG_GROUP)
4921 key_type = NL80211_KEYTYPE_GROUP;
4922 else
4923 key_type = NL80211_KEYTYPE_PAIRWISE;
4924
4925 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4926 NULL, GFP_KERNEL);
4927
4928 return 0;
4929 }
4930
4931 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4932 const struct brcmf_event_msg *e, void *data)
4933 {
4934 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4935 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4936 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4937 struct brcmf_cfg80211_vif *vif;
4938
4939 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4940 ifevent->action, ifevent->flags, ifevent->ifidx,
4941 ifevent->bssidx);
4942
4943 mutex_lock(&event->vif_event_lock);
4944 event->action = ifevent->action;
4945 vif = event->vif;
4946
4947 switch (ifevent->action) {
4948 case BRCMF_E_IF_ADD:
4949 /* waiting process may have timed out */
4950 if (!cfg->vif_event.vif) {
4951 mutex_unlock(&event->vif_event_lock);
4952 return -EBADF;
4953 }
4954
4955 ifp->vif = vif;
4956 vif->ifp = ifp;
4957 if (ifp->ndev) {
4958 vif->wdev.netdev = ifp->ndev;
4959 ifp->ndev->ieee80211_ptr = &vif->wdev;
4960 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4961 }
4962 mutex_unlock(&event->vif_event_lock);
4963 wake_up(&event->vif_wq);
4964 return 0;
4965
4966 case BRCMF_E_IF_DEL:
4967 mutex_unlock(&event->vif_event_lock);
4968 /* event may not be upon user request */
4969 if (brcmf_cfg80211_vif_event_armed(cfg))
4970 wake_up(&event->vif_wq);
4971 return 0;
4972
4973 case BRCMF_E_IF_CHANGE:
4974 mutex_unlock(&event->vif_event_lock);
4975 wake_up(&event->vif_wq);
4976 return 0;
4977
4978 default:
4979 mutex_unlock(&event->vif_event_lock);
4980 break;
4981 }
4982 return -EINVAL;
4983 }
4984
4985 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4986 {
4987 conf->frag_threshold = (u32)-1;
4988 conf->rts_threshold = (u32)-1;
4989 conf->retry_short = (u32)-1;
4990 conf->retry_long = (u32)-1;
4991 conf->tx_power = -1;
4992 }
4993
4994 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4995 {
4996 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4997 brcmf_notify_connect_status);
4998 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4999 brcmf_notify_connect_status);
5000 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5001 brcmf_notify_connect_status);
5002 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5003 brcmf_notify_connect_status);
5004 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5005 brcmf_notify_connect_status);
5006 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5007 brcmf_notify_connect_status);
5008 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5009 brcmf_notify_roaming_status);
5010 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5011 brcmf_notify_mic_status);
5012 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5013 brcmf_notify_connect_status);
5014 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5015 brcmf_notify_sched_scan_results);
5016 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5017 brcmf_notify_vif_event);
5018 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5019 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5020 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5021 brcmf_p2p_notify_listen_complete);
5022 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5023 brcmf_p2p_notify_action_frame_rx);
5024 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5025 brcmf_p2p_notify_action_tx_complete);
5026 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5027 brcmf_p2p_notify_action_tx_complete);
5028 }
5029
5030 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5031 {
5032 kfree(cfg->conf);
5033 cfg->conf = NULL;
5034 kfree(cfg->escan_ioctl_buf);
5035 cfg->escan_ioctl_buf = NULL;
5036 kfree(cfg->extra_buf);
5037 cfg->extra_buf = NULL;
5038 kfree(cfg->pmk_list);
5039 cfg->pmk_list = NULL;
5040 }
5041
5042 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5043 {
5044 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5045 if (!cfg->conf)
5046 goto init_priv_mem_out;
5047 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5048 if (!cfg->escan_ioctl_buf)
5049 goto init_priv_mem_out;
5050 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5051 if (!cfg->extra_buf)
5052 goto init_priv_mem_out;
5053 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
5054 if (!cfg->pmk_list)
5055 goto init_priv_mem_out;
5056
5057 return 0;
5058
5059 init_priv_mem_out:
5060 brcmf_deinit_priv_mem(cfg);
5061
5062 return -ENOMEM;
5063 }
5064
5065 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5066 {
5067 s32 err = 0;
5068
5069 cfg->scan_request = NULL;
5070 cfg->pwr_save = true;
5071 cfg->active_scan = true; /* we do active scan per default */
5072 cfg->dongle_up = false; /* dongle is not up yet */
5073 err = brcmf_init_priv_mem(cfg);
5074 if (err)
5075 return err;
5076 brcmf_register_event_handlers(cfg);
5077 mutex_init(&cfg->usr_sync);
5078 brcmf_init_escan(cfg);
5079 brcmf_init_conf(cfg->conf);
5080 init_completion(&cfg->vif_disabled);
5081 return err;
5082 }
5083
5084 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5085 {
5086 cfg->dongle_up = false; /* dongle down */
5087 brcmf_abort_scanning(cfg);
5088 brcmf_deinit_priv_mem(cfg);
5089 }
5090
5091 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5092 {
5093 init_waitqueue_head(&event->vif_wq);
5094 mutex_init(&event->vif_event_lock);
5095 }
5096
5097 static s32
5098 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
5099 {
5100 s32 err = 0;
5101 __le32 roamtrigger[2];
5102 __le32 roam_delta[2];
5103
5104 /*
5105 * Setup timeout if Beacons are lost and roam is
5106 * off to report link down
5107 */
5108 if (brcmf_roamoff) {
5109 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5110 if (err) {
5111 brcmf_err("bcn_timeout error (%d)\n", err);
5112 goto dongle_rom_out;
5113 }
5114 }
5115
5116 /*
5117 * Enable/Disable built-in roaming to allow supplicant
5118 * to take care of roaming
5119 */
5120 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5121 brcmf_roamoff ? "Off" : "On");
5122 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
5123 if (err) {
5124 brcmf_err("roam_off error (%d)\n", err);
5125 goto dongle_rom_out;
5126 }
5127
5128 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5129 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5130 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5131 (void *)roamtrigger, sizeof(roamtrigger));
5132 if (err) {
5133 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5134 goto dongle_rom_out;
5135 }
5136
5137 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5138 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5139 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5140 (void *)roam_delta, sizeof(roam_delta));
5141 if (err) {
5142 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5143 goto dongle_rom_out;
5144 }
5145
5146 dongle_rom_out:
5147 return err;
5148 }
5149
5150 static s32
5151 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5152 s32 scan_unassoc_time, s32 scan_passive_time)
5153 {
5154 s32 err = 0;
5155
5156 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5157 scan_assoc_time);
5158 if (err) {
5159 if (err == -EOPNOTSUPP)
5160 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5161 else
5162 brcmf_err("Scan assoc time error (%d)\n", err);
5163 goto dongle_scantime_out;
5164 }
5165 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5166 scan_unassoc_time);
5167 if (err) {
5168 if (err == -EOPNOTSUPP)
5169 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5170 else
5171 brcmf_err("Scan unassoc time error (%d)\n", err);
5172 goto dongle_scantime_out;
5173 }
5174
5175 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5176 scan_passive_time);
5177 if (err) {
5178 if (err == -EOPNOTSUPP)
5179 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5180 else
5181 brcmf_err("Scan passive time error (%d)\n", err);
5182 goto dongle_scantime_out;
5183 }
5184
5185 dongle_scantime_out:
5186 return err;
5187 }
5188
5189 /* Filter the list of channels received from firmware counting only
5190 * the 20MHz channels. The wiphy band data only needs those which get
5191 * flagged to indicate if they can take part in higher bandwidth.
5192 */
5193 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5194 struct brcmf_chanspec_list *chlist,
5195 u32 chcnt[])
5196 {
5197 u32 total = le32_to_cpu(chlist->count);
5198 struct brcmu_chan ch;
5199 int i;
5200
5201 for (i = 0; i < total; i++) {
5202 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5203 cfg->d11inf.decchspec(&ch);
5204
5205 /* Firmware gives a ordered list. We skip non-20MHz
5206 * channels is 2G. For 5G we can abort upon reaching
5207 * a non-20MHz channel in the list.
5208 */
5209 if (ch.bw != BRCMU_CHAN_BW_20) {
5210 if (ch.band == BRCMU_CHAN_BAND_5G)
5211 break;
5212 else
5213 continue;
5214 }
5215
5216 if (ch.band == BRCMU_CHAN_BAND_2G)
5217 chcnt[0] += 1;
5218 else if (ch.band == BRCMU_CHAN_BAND_5G)
5219 chcnt[1] += 1;
5220 }
5221 }
5222
5223 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5224 struct brcmu_chan *ch)
5225 {
5226 u32 ht40_flag;
5227
5228 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5229 if (ch->sb == BRCMU_CHAN_SB_U) {
5230 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5231 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5232 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5233 } else {
5234 /* It should be one of
5235 * IEEE80211_CHAN_NO_HT40 or
5236 * IEEE80211_CHAN_NO_HT40PLUS
5237 */
5238 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5239 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5240 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5241 }
5242 }
5243
5244 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5245 u32 bw_cap[])
5246 {
5247 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5248 struct ieee80211_supported_band *band;
5249 struct ieee80211_channel *channel;
5250 struct wiphy *wiphy;
5251 struct brcmf_chanspec_list *list;
5252 struct brcmu_chan ch;
5253 int err;
5254 u8 *pbuf;
5255 u32 i, j;
5256 u32 total;
5257 u32 chaninfo;
5258 u32 chcnt[2] = { 0, 0 };
5259 u32 index;
5260
5261 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5262
5263 if (pbuf == NULL)
5264 return -ENOMEM;
5265
5266 list = (struct brcmf_chanspec_list *)pbuf;
5267
5268 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5269 BRCMF_DCMD_MEDLEN);
5270 if (err) {
5271 brcmf_err("get chanspecs error (%d)\n", err);
5272 goto fail_pbuf;
5273 }
5274
5275 brcmf_count_20mhz_channels(cfg, list, chcnt);
5276 wiphy = cfg_to_wiphy(cfg);
5277 if (chcnt[0]) {
5278 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5279 GFP_KERNEL);
5280 if (band == NULL) {
5281 err = -ENOMEM;
5282 goto fail_pbuf;
5283 }
5284 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5285 GFP_KERNEL);
5286 if (band->channels == NULL) {
5287 kfree(band);
5288 err = -ENOMEM;
5289 goto fail_pbuf;
5290 }
5291 band->n_channels = 0;
5292 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5293 }
5294 if (chcnt[1]) {
5295 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5296 GFP_KERNEL);
5297 if (band == NULL) {
5298 err = -ENOMEM;
5299 goto fail_band2g;
5300 }
5301 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5302 GFP_KERNEL);
5303 if (band->channels == NULL) {
5304 kfree(band);
5305 err = -ENOMEM;
5306 goto fail_band2g;
5307 }
5308 band->n_channels = 0;
5309 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5310 }
5311
5312 total = le32_to_cpu(list->count);
5313 for (i = 0; i < total; i++) {
5314 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5315 cfg->d11inf.decchspec(&ch);
5316
5317 if (ch.band == BRCMU_CHAN_BAND_2G) {
5318 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5319 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5320 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5321 } else {
5322 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5323 continue;
5324 }
5325 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5326 ch.bw == BRCMU_CHAN_BW_40)
5327 continue;
5328 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5329 ch.bw == BRCMU_CHAN_BW_80)
5330 continue;
5331
5332 channel = band->channels;
5333 index = band->n_channels;
5334 for (j = 0; j < band->n_channels; j++) {
5335 if (channel[j].hw_value == ch.chnum) {
5336 index = j;
5337 break;
5338 }
5339 }
5340 channel[index].center_freq =
5341 ieee80211_channel_to_frequency(ch.chnum, band->band);
5342 channel[index].hw_value = ch.chnum;
5343
5344 /* assuming the chanspecs order is HT20,
5345 * HT40 upper, HT40 lower, and VHT80.
5346 */
5347 if (ch.bw == BRCMU_CHAN_BW_80) {
5348 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5349 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5350 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5351 } else {
5352 /* disable other bandwidths for now as mentioned
5353 * order assure they are enabled for subsequent
5354 * chanspecs.
5355 */
5356 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5357 IEEE80211_CHAN_NO_80MHZ;
5358 ch.bw = BRCMU_CHAN_BW_20;
5359 cfg->d11inf.encchspec(&ch);
5360 chaninfo = ch.chspec;
5361 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5362 &chaninfo);
5363 if (!err) {
5364 if (chaninfo & WL_CHAN_RADAR)
5365 channel[index].flags |=
5366 (IEEE80211_CHAN_RADAR |
5367 IEEE80211_CHAN_NO_IR);
5368 if (chaninfo & WL_CHAN_PASSIVE)
5369 channel[index].flags |=
5370 IEEE80211_CHAN_NO_IR;
5371 }
5372 }
5373 if (index == band->n_channels)
5374 band->n_channels++;
5375 }
5376 kfree(pbuf);
5377 return 0;
5378
5379 fail_band2g:
5380 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5381 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5382 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5383 fail_pbuf:
5384 kfree(pbuf);
5385 return err;
5386 }
5387
5388 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5389 {
5390 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5391 struct ieee80211_supported_band *band;
5392 struct brcmf_fil_bwcap_le band_bwcap;
5393 struct brcmf_chanspec_list *list;
5394 u8 *pbuf;
5395 u32 val;
5396 int err;
5397 struct brcmu_chan ch;
5398 u32 num_chan;
5399 int i, j;
5400
5401 /* verify support for bw_cap command */
5402 val = WLC_BAND_5G;
5403 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5404
5405 if (!err) {
5406 /* only set 2G bandwidth using bw_cap command */
5407 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5408 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5409 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5410 sizeof(band_bwcap));
5411 } else {
5412 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5413 val = WLC_N_BW_40ALL;
5414 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5415 }
5416
5417 if (!err) {
5418 /* update channel info in 2G band */
5419 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5420
5421 if (pbuf == NULL)
5422 return -ENOMEM;
5423
5424 ch.band = BRCMU_CHAN_BAND_2G;
5425 ch.bw = BRCMU_CHAN_BW_40;
5426 ch.sb = BRCMU_CHAN_SB_NONE;
5427 ch.chnum = 0;
5428 cfg->d11inf.encchspec(&ch);
5429
5430 /* pass encoded chanspec in query */
5431 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5432
5433 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5434 BRCMF_DCMD_MEDLEN);
5435 if (err) {
5436 brcmf_err("get chanspecs error (%d)\n", err);
5437 kfree(pbuf);
5438 return err;
5439 }
5440
5441 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5442 list = (struct brcmf_chanspec_list *)pbuf;
5443 num_chan = le32_to_cpu(list->count);
5444 for (i = 0; i < num_chan; i++) {
5445 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5446 cfg->d11inf.decchspec(&ch);
5447 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5448 continue;
5449 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5450 continue;
5451 for (j = 0; j < band->n_channels; j++) {
5452 if (band->channels[j].hw_value == ch.chnum)
5453 break;
5454 }
5455 if (WARN_ON(j == band->n_channels))
5456 continue;
5457
5458 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5459 }
5460 kfree(pbuf);
5461 }
5462 return err;
5463 }
5464
5465 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5466 {
5467 u32 band, mimo_bwcap;
5468 int err;
5469
5470 band = WLC_BAND_2G;
5471 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5472 if (!err) {
5473 bw_cap[IEEE80211_BAND_2GHZ] = band;
5474 band = WLC_BAND_5G;
5475 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5476 if (!err) {
5477 bw_cap[IEEE80211_BAND_5GHZ] = band;
5478 return;
5479 }
5480 WARN_ON(1);
5481 return;
5482 }
5483 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5484 mimo_bwcap = 0;
5485 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5486 if (err)
5487 /* assume 20MHz if firmware does not give a clue */
5488 mimo_bwcap = WLC_N_BW_20ALL;
5489
5490 switch (mimo_bwcap) {
5491 case WLC_N_BW_40ALL:
5492 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5493 /* fall-thru */
5494 case WLC_N_BW_20IN2G_40IN5G:
5495 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5496 /* fall-thru */
5497 case WLC_N_BW_20ALL:
5498 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5499 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5500 break;
5501 default:
5502 brcmf_err("invalid mimo_bw_cap value\n");
5503 }
5504 }
5505
5506 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5507 u32 bw_cap[2], u32 nchain)
5508 {
5509 band->ht_cap.ht_supported = true;
5510 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5511 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5512 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5513 }
5514 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5515 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5516 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5517 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5518 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5519 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5520 }
5521
5522 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5523 {
5524 u16 mcs_map;
5525 int i;
5526
5527 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5528 mcs_map = (mcs_map << 2) | supp;
5529
5530 return cpu_to_le16(mcs_map);
5531 }
5532
5533 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5534 u32 bw_cap[2], u32 nchain)
5535 {
5536 __le16 mcs_map;
5537
5538 /* not allowed in 2.4G band */
5539 if (band->band == IEEE80211_BAND_2GHZ)
5540 return;
5541
5542 band->vht_cap.vht_supported = true;
5543 /* 80MHz is mandatory */
5544 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5545 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5546 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5547 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5548 }
5549 /* all support 256-QAM */
5550 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5551 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5552 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5553 }
5554
5555 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5556 {
5557 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5558 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5559 u32 nmode = 0;
5560 u32 vhtmode = 0;
5561 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5562 u32 rxchain;
5563 u32 nchain;
5564 int err;
5565 s32 i;
5566 struct ieee80211_supported_band *band;
5567
5568 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5569 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5570 if (err) {
5571 brcmf_err("nmode error (%d)\n", err);
5572 } else {
5573 brcmf_get_bwcap(ifp, bw_cap);
5574 }
5575 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5576 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5577 bw_cap[IEEE80211_BAND_5GHZ]);
5578
5579 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5580 if (err) {
5581 brcmf_err("rxchain error (%d)\n", err);
5582 nchain = 1;
5583 } else {
5584 for (nchain = 0; rxchain; nchain++)
5585 rxchain = rxchain & (rxchain - 1);
5586 }
5587 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5588
5589 err = brcmf_construct_chaninfo(cfg, bw_cap);
5590 if (err) {
5591 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5592 return err;
5593 }
5594
5595 wiphy = cfg_to_wiphy(cfg);
5596 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5597 band = wiphy->bands[i];
5598 if (band == NULL)
5599 continue;
5600
5601 if (nmode)
5602 brcmf_update_ht_cap(band, bw_cap, nchain);
5603 if (vhtmode)
5604 brcmf_update_vht_cap(band, bw_cap, nchain);
5605 }
5606
5607 return 0;
5608 }
5609
5610 static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
5611 {
5612 .max = 1,
5613 .types = BIT(NL80211_IFTYPE_STATION) |
5614 BIT(NL80211_IFTYPE_ADHOC)
5615 },
5616 {
5617 .max = 4,
5618 .types = BIT(NL80211_IFTYPE_AP)
5619 },
5620 {
5621 .max = 1,
5622 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5623 BIT(NL80211_IFTYPE_P2P_GO)
5624 },
5625 {
5626 .max = 1,
5627 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5628 }
5629 };
5630
5631 static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
5632 {
5633 .max = 2,
5634 .types = BIT(NL80211_IFTYPE_STATION) |
5635 BIT(NL80211_IFTYPE_ADHOC) |
5636 BIT(NL80211_IFTYPE_AP)
5637 },
5638 {
5639 .max = 1,
5640 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5641 BIT(NL80211_IFTYPE_P2P_GO)
5642 },
5643 {
5644 .max = 1,
5645 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5646 }
5647 };
5648 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5649 {
5650 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5651 .num_different_channels = 1,
5652 .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
5653 .limits = brcmf_iface_limits_sbss,
5654 }
5655 };
5656
5657 static const struct ieee80211_txrx_stypes
5658 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5659 [NL80211_IFTYPE_STATION] = {
5660 .tx = 0xffff,
5661 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5662 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5663 },
5664 [NL80211_IFTYPE_P2P_CLIENT] = {
5665 .tx = 0xffff,
5666 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5667 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5668 },
5669 [NL80211_IFTYPE_P2P_GO] = {
5670 .tx = 0xffff,
5671 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5672 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5673 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5674 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5675 BIT(IEEE80211_STYPE_AUTH >> 4) |
5676 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5677 BIT(IEEE80211_STYPE_ACTION >> 4)
5678 },
5679 [NL80211_IFTYPE_P2P_DEVICE] = {
5680 .tx = 0xffff,
5681 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5682 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5683 }
5684 };
5685
5686 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5687 {
5688 /* scheduled scan settings */
5689 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5690 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5691 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5692 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5693 }
5694
5695 #ifdef CONFIG_PM
5696 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5697 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5698 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5699 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5700 .pattern_min_len = 1,
5701 .max_pkt_offset = 1500,
5702 };
5703 #endif
5704
5705 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5706 {
5707 #ifdef CONFIG_PM
5708 /* wowl settings */
5709 wiphy->wowlan = &brcmf_wowlan_support;
5710 #endif
5711 }
5712
5713 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5714 {
5715 struct ieee80211_iface_combination ifc_combo;
5716 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5717 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5718 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5719 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5720 BIT(NL80211_IFTYPE_ADHOC) |
5721 BIT(NL80211_IFTYPE_AP) |
5722 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5723 BIT(NL80211_IFTYPE_P2P_GO) |
5724 BIT(NL80211_IFTYPE_P2P_DEVICE);
5725 /* need VSDB firmware feature for concurrent channels */
5726 ifc_combo = brcmf_iface_combos[0];
5727 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5728 ifc_combo.num_different_channels = 2;
5729 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
5730 ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
5731 ifc_combo.limits = brcmf_iface_limits_mbss;
5732 }
5733 wiphy->iface_combinations = kmemdup(&ifc_combo,
5734 sizeof(ifc_combo),
5735 GFP_KERNEL);
5736 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5737 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5738 wiphy->cipher_suites = __wl_cipher_suites;
5739 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5740 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5741 WIPHY_FLAG_OFFCHAN_TX |
5742 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5743 WIPHY_FLAG_SUPPORTS_TDLS;
5744 if (!brcmf_roamoff)
5745 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5746 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5747 wiphy->max_remain_on_channel_duration = 5000;
5748 brcmf_wiphy_pno_params(wiphy);
5749
5750 /* vendor commands/events support */
5751 wiphy->vendor_commands = brcmf_vendor_cmds;
5752 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5753
5754 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5755 brcmf_wiphy_wowl_params(wiphy);
5756
5757 return brcmf_setup_wiphybands(wiphy);
5758 }
5759
5760 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5761 {
5762 struct net_device *ndev;
5763 struct wireless_dev *wdev;
5764 struct brcmf_if *ifp;
5765 s32 power_mode;
5766 s32 err = 0;
5767
5768 if (cfg->dongle_up)
5769 return err;
5770
5771 ndev = cfg_to_ndev(cfg);
5772 wdev = ndev->ieee80211_ptr;
5773 ifp = netdev_priv(ndev);
5774
5775 /* make sure RF is ready for work */
5776 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5777
5778 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5779 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5780
5781 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5782 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5783 if (err)
5784 goto default_conf_out;
5785 brcmf_dbg(INFO, "power save set to %s\n",
5786 (power_mode ? "enabled" : "disabled"));
5787
5788 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5789 if (err)
5790 goto default_conf_out;
5791 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5792 NULL, NULL);
5793 if (err)
5794 goto default_conf_out;
5795
5796 brcmf_configure_arp_offload(ifp, true);
5797
5798 cfg->dongle_up = true;
5799 default_conf_out:
5800
5801 return err;
5802
5803 }
5804
5805 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5806 {
5807 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5808
5809 return brcmf_config_dongle(ifp->drvr->config);
5810 }
5811
5812 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5813 {
5814 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5815
5816 /*
5817 * While going down, if associated with AP disassociate
5818 * from AP to save power
5819 */
5820 if (check_vif_up(ifp->vif)) {
5821 brcmf_link_down(ifp->vif);
5822
5823 /* Make sure WPA_Supplicant receives all the event
5824 generated due to DISASSOC call to the fw to keep
5825 the state fw and WPA_Supplicant state consistent
5826 */
5827 brcmf_delay(500);
5828 }
5829
5830 brcmf_abort_scanning(cfg);
5831 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5832
5833 return 0;
5834 }
5835
5836 s32 brcmf_cfg80211_up(struct net_device *ndev)
5837 {
5838 struct brcmf_if *ifp = netdev_priv(ndev);
5839 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5840 s32 err = 0;
5841
5842 mutex_lock(&cfg->usr_sync);
5843 err = __brcmf_cfg80211_up(ifp);
5844 mutex_unlock(&cfg->usr_sync);
5845
5846 return err;
5847 }
5848
5849 s32 brcmf_cfg80211_down(struct net_device *ndev)
5850 {
5851 struct brcmf_if *ifp = netdev_priv(ndev);
5852 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5853 s32 err = 0;
5854
5855 mutex_lock(&cfg->usr_sync);
5856 err = __brcmf_cfg80211_down(ifp);
5857 mutex_unlock(&cfg->usr_sync);
5858
5859 return err;
5860 }
5861
5862 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5863 {
5864 struct wireless_dev *wdev = &ifp->vif->wdev;
5865
5866 return wdev->iftype;
5867 }
5868
5869 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5870 unsigned long state)
5871 {
5872 struct brcmf_cfg80211_vif *vif;
5873
5874 list_for_each_entry(vif, &cfg->vif_list, list) {
5875 if (test_bit(state, &vif->sme_state))
5876 return true;
5877 }
5878 return false;
5879 }
5880
5881 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5882 u8 action)
5883 {
5884 u8 evt_action;
5885
5886 mutex_lock(&event->vif_event_lock);
5887 evt_action = event->action;
5888 mutex_unlock(&event->vif_event_lock);
5889 return evt_action == action;
5890 }
5891
5892 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5893 struct brcmf_cfg80211_vif *vif)
5894 {
5895 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5896
5897 mutex_lock(&event->vif_event_lock);
5898 event->vif = vif;
5899 event->action = 0;
5900 mutex_unlock(&event->vif_event_lock);
5901 }
5902
5903 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5904 {
5905 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5906 bool armed;
5907
5908 mutex_lock(&event->vif_event_lock);
5909 armed = event->vif != NULL;
5910 mutex_unlock(&event->vif_event_lock);
5911
5912 return armed;
5913 }
5914 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5915 u8 action, ulong timeout)
5916 {
5917 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5918
5919 return wait_event_timeout(event->vif_wq,
5920 vif_event_equals(event, action), timeout);
5921 }
5922
5923 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
5924 struct regulatory_request *req)
5925 {
5926 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5927 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5928 struct brcmf_fil_country_le ccreq;
5929 int i;
5930
5931 brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator,
5932 req->alpha2[0], req->alpha2[1]);
5933
5934 /* ignore non-ISO3166 country codes */
5935 for (i = 0; i < sizeof(req->alpha2); i++)
5936 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
5937 brcmf_err("not a ISO3166 code\n");
5938 return;
5939 }
5940 memset(&ccreq, 0, sizeof(ccreq));
5941 ccreq.rev = cpu_to_le32(-1);
5942 memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2));
5943 brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
5944 }
5945
5946 static void brcmf_free_wiphy(struct wiphy *wiphy)
5947 {
5948 kfree(wiphy->iface_combinations);
5949 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5950 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5951 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5952 }
5953 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5954 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5955 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5956 }
5957 wiphy_free(wiphy);
5958 }
5959
5960 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5961 struct device *busdev)
5962 {
5963 struct net_device *ndev = drvr->iflist[0]->ndev;
5964 struct brcmf_cfg80211_info *cfg;
5965 struct wiphy *wiphy;
5966 struct brcmf_cfg80211_vif *vif;
5967 struct brcmf_if *ifp;
5968 s32 err = 0;
5969 s32 io_type;
5970 u16 *cap = NULL;
5971
5972 if (!ndev) {
5973 brcmf_err("ndev is invalid\n");
5974 return NULL;
5975 }
5976
5977 ifp = netdev_priv(ndev);
5978 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5979 if (!wiphy) {
5980 brcmf_err("Could not allocate wiphy device\n");
5981 return NULL;
5982 }
5983 set_wiphy_dev(wiphy, busdev);
5984
5985 cfg = wiphy_priv(wiphy);
5986 cfg->wiphy = wiphy;
5987 cfg->pub = drvr;
5988 init_vif_event(&cfg->vif_event);
5989 INIT_LIST_HEAD(&cfg->vif_list);
5990
5991 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5992 if (IS_ERR(vif))
5993 goto wiphy_out;
5994
5995 vif->ifp = ifp;
5996 vif->wdev.netdev = ndev;
5997 ndev->ieee80211_ptr = &vif->wdev;
5998 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5999
6000 err = wl_init_priv(cfg);
6001 if (err) {
6002 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6003 brcmf_free_vif(vif);
6004 goto wiphy_out;
6005 }
6006 ifp->vif = vif;
6007
6008 /* determine d11 io type before wiphy setup */
6009 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6010 if (err) {
6011 brcmf_err("Failed to get D11 version (%d)\n", err);
6012 goto priv_out;
6013 }
6014 cfg->d11inf.io_type = (u8)io_type;
6015 brcmu_d11_attach(&cfg->d11inf);
6016
6017 err = brcmf_setup_wiphy(wiphy, ifp);
6018 if (err < 0)
6019 goto priv_out;
6020
6021 brcmf_dbg(INFO, "Registering custom regulatory\n");
6022 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6023 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6024 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6025
6026 /* firmware defaults to 40MHz disabled in 2G band. We signal
6027 * cfg80211 here that we do and have it decide we can enable
6028 * it. But first check if device does support 2G operation.
6029 */
6030 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6031 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
6032 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6033 }
6034 err = wiphy_register(wiphy);
6035 if (err < 0) {
6036 brcmf_err("Could not register wiphy device (%d)\n", err);
6037 goto priv_out;
6038 }
6039
6040 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6041 * setup 40MHz in 2GHz band and enable OBSS scanning.
6042 */
6043 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6044 err = brcmf_enable_bw40_2g(cfg);
6045 if (!err)
6046 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6047 BRCMF_OBSS_COEX_AUTO);
6048 else
6049 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6050 }
6051
6052 err = brcmf_p2p_attach(cfg);
6053 if (err) {
6054 brcmf_err("P2P initilisation failed (%d)\n", err);
6055 goto wiphy_unreg_out;
6056 }
6057 err = brcmf_btcoex_attach(cfg);
6058 if (err) {
6059 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6060 brcmf_p2p_detach(&cfg->p2p);
6061 goto wiphy_unreg_out;
6062 }
6063
6064 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
6065 if (err) {
6066 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
6067 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6068 } else {
6069 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6070 brcmf_notify_tdls_peer_event);
6071 }
6072
6073 return cfg;
6074
6075 wiphy_unreg_out:
6076 wiphy_unregister(cfg->wiphy);
6077 priv_out:
6078 wl_deinit_priv(cfg);
6079 brcmf_free_vif(vif);
6080 wiphy_out:
6081 brcmf_free_wiphy(wiphy);
6082 return NULL;
6083 }
6084
6085 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
6086 {
6087 if (!cfg)
6088 return;
6089
6090 WARN_ON(!list_empty(&cfg->vif_list));
6091 wiphy_unregister(cfg->wiphy);
6092 brcmf_btcoex_detach(cfg);
6093 brcmf_p2p_detach(&cfg->p2p);
6094 wl_deinit_priv(cfg);
6095 brcmf_free_wiphy(cfg->wiphy);
6096 }
Linux kernel - Deliverables
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