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 "pno.h"
36 #include "cfg80211.h"
37 #include "feature.h"
38 #include "fwil.h"
39 #include "proto.h"
40 #include "vendor.h"
41 #include "bus.h"
42 #include "common.h"
43
44 #define BRCMF_SCAN_IE_LEN_MAX 2048
45
46 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
47 #define WPA_OUI_TYPE 1
48 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
49 #define WME_OUI_TYPE 2
50 #define WPS_OUI_TYPE 4
51
52 #define VS_IE_FIXED_HDR_LEN 6
53 #define WPA_IE_VERSION_LEN 2
54 #define WPA_IE_MIN_OUI_LEN 4
55 #define WPA_IE_SUITE_COUNT_LEN 2
56
57 #define WPA_CIPHER_NONE 0 /* None */
58 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
59 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
60 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
61 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
62
63 #define RSN_AKM_NONE 0 /* None (IBSS) */
64 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
65 #define RSN_AKM_PSK 2 /* Pre-shared Key */
66 #define RSN_AKM_SHA256_1X 5 /* SHA256, 802.1X */
67 #define RSN_AKM_SHA256_PSK 6 /* SHA256, Pre-shared Key */
68 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
69 #define RSN_CAP_PTK_REPLAY_CNTR_MASK (BIT(2) | BIT(3))
70 #define RSN_CAP_MFPR_MASK BIT(6)
71 #define RSN_CAP_MFPC_MASK BIT(7)
72 #define RSN_PMKID_COUNT_LEN 2
73
74 #define VNDR_IE_CMD_LEN 4 /* length of the set command
75 * string :"add", "del" (+ NUL)
76 */
77 #define VNDR_IE_COUNT_OFFSET 4
78 #define VNDR_IE_PKTFLAG_OFFSET 8
79 #define VNDR_IE_VSIE_OFFSET 12
80 #define VNDR_IE_HDR_SIZE 12
81 #define VNDR_IE_PARSE_LIMIT 5
82
83 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
84 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
85
86 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
87 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
88 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
89
90 #define BRCMF_SCAN_CHANNEL_TIME 40
91 #define BRCMF_SCAN_UNASSOC_TIME 40
92 #define BRCMF_SCAN_PASSIVE_TIME 120
93
94 #define BRCMF_ND_INFO_TIMEOUT msecs_to_jiffies(2000)
95
96 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
97 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
98
check_vif_up(struct brcmf_cfg80211_vif * vif)99 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
100 {
101 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
102 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
103 vif->sme_state);
104 return false;
105 }
106 return true;
107 }
108
109 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
110 #define RATETAB_ENT(_rateid, _flags) \
111 { \
112 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
113 .hw_value = (_rateid), \
114 .flags = (_flags), \
115 }
116
117 static struct ieee80211_rate __wl_rates[] = {
118 RATETAB_ENT(BRCM_RATE_1M, 0),
119 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
122 RATETAB_ENT(BRCM_RATE_6M, 0),
123 RATETAB_ENT(BRCM_RATE_9M, 0),
124 RATETAB_ENT(BRCM_RATE_12M, 0),
125 RATETAB_ENT(BRCM_RATE_18M, 0),
126 RATETAB_ENT(BRCM_RATE_24M, 0),
127 RATETAB_ENT(BRCM_RATE_36M, 0),
128 RATETAB_ENT(BRCM_RATE_48M, 0),
129 RATETAB_ENT(BRCM_RATE_54M, 0),
130 };
131
132 #define wl_g_rates (__wl_rates + 0)
133 #define wl_g_rates_size ARRAY_SIZE(__wl_rates)
134 #define wl_a_rates (__wl_rates + 4)
135 #define wl_a_rates_size (wl_g_rates_size - 4)
136
137 #define CHAN2G(_channel, _freq) { \
138 .band = NL80211_BAND_2GHZ, \
139 .center_freq = (_freq), \
140 .hw_value = (_channel), \
141 .max_antenna_gain = 0, \
142 .max_power = 30, \
143 }
144
145 #define CHAN5G(_channel) { \
146 .band = NL80211_BAND_5GHZ, \
147 .center_freq = 5000 + (5 * (_channel)), \
148 .hw_value = (_channel), \
149 .max_antenna_gain = 0, \
150 .max_power = 30, \
151 }
152
153 static struct ieee80211_channel __wl_2ghz_channels[] = {
154 CHAN2G(1, 2412), CHAN2G(2, 2417), CHAN2G(3, 2422), CHAN2G(4, 2427),
155 CHAN2G(5, 2432), CHAN2G(6, 2437), CHAN2G(7, 2442), CHAN2G(8, 2447),
156 CHAN2G(9, 2452), CHAN2G(10, 2457), CHAN2G(11, 2462), CHAN2G(12, 2467),
157 CHAN2G(13, 2472), CHAN2G(14, 2484)
158 };
159
160 static struct ieee80211_channel __wl_5ghz_channels[] = {
161 CHAN5G(34), CHAN5G(36), CHAN5G(38), CHAN5G(40), CHAN5G(42),
162 CHAN5G(44), CHAN5G(46), CHAN5G(48), CHAN5G(52), CHAN5G(56),
163 CHAN5G(60), CHAN5G(64), CHAN5G(100), CHAN5G(104), CHAN5G(108),
164 CHAN5G(112), CHAN5G(116), CHAN5G(120), CHAN5G(124), CHAN5G(128),
165 CHAN5G(132), CHAN5G(136), CHAN5G(140), CHAN5G(144), CHAN5G(149),
166 CHAN5G(153), CHAN5G(157), CHAN5G(161), CHAN5G(165)
167 };
168
169 /* Band templates duplicated per wiphy. The channel info
170 * above is added to the band during setup.
171 */
172 static const struct ieee80211_supported_band __wl_band_2ghz = {
173 .band = NL80211_BAND_2GHZ,
174 .bitrates = wl_g_rates,
175 .n_bitrates = wl_g_rates_size,
176 };
177
178 static const struct ieee80211_supported_band __wl_band_5ghz = {
179 .band = NL80211_BAND_5GHZ,
180 .bitrates = wl_a_rates,
181 .n_bitrates = wl_a_rates_size,
182 };
183
184 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
185 * By default world regulatory domain defined in reg.c puts the flags
186 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
187 * With respect to these flags, wpa_supplicant doesn't * start p2p
188 * operations on 5GHz channels. All the changes in world regulatory
189 * domain are to be done here.
190 */
191 static const struct ieee80211_regdomain brcmf_regdom = {
192 .n_reg_rules = 4,
193 .alpha2 = "99",
194 .reg_rules = {
195 /* IEEE 802.11b/g, channels 1..11 */
196 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
197 /* If any */
198 /* IEEE 802.11 channel 14 - Only JP enables
199 * this and for 802.11b only
200 */
201 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
202 /* IEEE 802.11a, channel 36..64 */
203 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
204 /* IEEE 802.11a, channel 100..165 */
205 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
206 };
207
208 /* Note: brcmf_cipher_suites is an array of int defining which cipher suites
209 * are supported. A pointer to this array and the number of entries is passed
210 * on to upper layers. AES_CMAC defines whether or not the driver supports MFP.
211 * So the cipher suite AES_CMAC has to be the last one in the array, and when
212 * device does not support MFP then the number of suites will be decreased by 1
213 */
214 static const u32 brcmf_cipher_suites[] = {
215 WLAN_CIPHER_SUITE_WEP40,
216 WLAN_CIPHER_SUITE_WEP104,
217 WLAN_CIPHER_SUITE_TKIP,
218 WLAN_CIPHER_SUITE_CCMP,
219 /* Keep as last entry: */
220 WLAN_CIPHER_SUITE_AES_CMAC
221 };
222
223 /* Vendor specific ie. id = 221, oui and type defines exact ie */
224 struct brcmf_vs_tlv {
225 u8 id;
226 u8 len;
227 u8 oui[3];
228 u8 oui_type;
229 };
230
231 struct parsed_vndr_ie_info {
232 u8 *ie_ptr;
233 u32 ie_len; /* total length including id & length field */
234 struct brcmf_vs_tlv vndrie;
235 };
236
237 struct parsed_vndr_ies {
238 u32 count;
239 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
240 };
241
nl80211_band_to_fwil(enum nl80211_band band)242 static u8 nl80211_band_to_fwil(enum nl80211_band band)
243 {
244 switch (band) {
245 case NL80211_BAND_2GHZ:
246 return WLC_BAND_2G;
247 case NL80211_BAND_5GHZ:
248 return WLC_BAND_5G;
249 default:
250 WARN_ON(1);
251 break;
252 }
253 return 0;
254 }
255
chandef_to_chanspec(struct brcmu_d11inf * d11inf,struct cfg80211_chan_def * ch)256 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
257 struct cfg80211_chan_def *ch)
258 {
259 struct brcmu_chan ch_inf;
260 s32 primary_offset;
261
262 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
263 ch->chan->center_freq, ch->center_freq1, ch->width);
264 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
265 primary_offset = ch->chan->center_freq - ch->center_freq1;
266 switch (ch->width) {
267 case NL80211_CHAN_WIDTH_20:
268 case NL80211_CHAN_WIDTH_20_NOHT:
269 ch_inf.bw = BRCMU_CHAN_BW_20;
270 WARN_ON(primary_offset != 0);
271 break;
272 case NL80211_CHAN_WIDTH_40:
273 ch_inf.bw = BRCMU_CHAN_BW_40;
274 if (primary_offset > 0)
275 ch_inf.sb = BRCMU_CHAN_SB_U;
276 else
277 ch_inf.sb = BRCMU_CHAN_SB_L;
278 break;
279 case NL80211_CHAN_WIDTH_80:
280 ch_inf.bw = BRCMU_CHAN_BW_80;
281 if (primary_offset == -30)
282 ch_inf.sb = BRCMU_CHAN_SB_LL;
283 else if (primary_offset == -10)
284 ch_inf.sb = BRCMU_CHAN_SB_LU;
285 else if (primary_offset == 10)
286 ch_inf.sb = BRCMU_CHAN_SB_UL;
287 else
288 ch_inf.sb = BRCMU_CHAN_SB_UU;
289 break;
290 case NL80211_CHAN_WIDTH_80P80:
291 case NL80211_CHAN_WIDTH_160:
292 case NL80211_CHAN_WIDTH_5:
293 case NL80211_CHAN_WIDTH_10:
294 default:
295 WARN_ON_ONCE(1);
296 }
297 switch (ch->chan->band) {
298 case NL80211_BAND_2GHZ:
299 ch_inf.band = BRCMU_CHAN_BAND_2G;
300 break;
301 case NL80211_BAND_5GHZ:
302 ch_inf.band = BRCMU_CHAN_BAND_5G;
303 break;
304 case NL80211_BAND_60GHZ:
305 default:
306 WARN_ON_ONCE(1);
307 }
308 d11inf->encchspec(&ch_inf);
309
310 return ch_inf.chspec;
311 }
312
channel_to_chanspec(struct brcmu_d11inf * d11inf,struct ieee80211_channel * ch)313 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
314 struct ieee80211_channel *ch)
315 {
316 struct brcmu_chan ch_inf;
317
318 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
319 ch_inf.bw = BRCMU_CHAN_BW_20;
320 d11inf->encchspec(&ch_inf);
321
322 return ch_inf.chspec;
323 }
324
325 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
326 * triples, returning a pointer to the substring whose first element
327 * matches tag
328 */
329 static const struct brcmf_tlv *
brcmf_parse_tlvs(const void * buf,int buflen,uint key)330 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
331 {
332 const struct brcmf_tlv *elt = buf;
333 int totlen = buflen;
334
335 /* find tagged parameter */
336 while (totlen >= TLV_HDR_LEN) {
337 int len = elt->len;
338
339 /* validate remaining totlen */
340 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
341 return elt;
342
343 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
344 totlen -= (len + TLV_HDR_LEN);
345 }
346
347 return NULL;
348 }
349
350 /* Is any of the tlvs the expected entry? If
351 * not update the tlvs buffer pointer/length.
352 */
353 static bool
brcmf_tlv_has_ie(const u8 * ie,const u8 ** tlvs,u32 * tlvs_len,const u8 * oui,u32 oui_len,u8 type)354 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
355 const u8 *oui, u32 oui_len, u8 type)
356 {
357 /* If the contents match the OUI and the type */
358 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
359 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
360 type == ie[TLV_BODY_OFF + oui_len]) {
361 return true;
362 }
363
364 if (tlvs == NULL)
365 return false;
366 /* point to the next ie */
367 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
368 /* calculate the length of the rest of the buffer */
369 *tlvs_len -= (int)(ie - *tlvs);
370 /* update the pointer to the start of the buffer */
371 *tlvs = ie;
372
373 return false;
374 }
375
376 static struct brcmf_vs_tlv *
brcmf_find_wpaie(const u8 * parse,u32 len)377 brcmf_find_wpaie(const u8 *parse, u32 len)
378 {
379 const struct brcmf_tlv *ie;
380
381 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
382 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
383 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
384 return (struct brcmf_vs_tlv *)ie;
385 }
386 return NULL;
387 }
388
389 static struct brcmf_vs_tlv *
brcmf_find_wpsie(const u8 * parse,u32 len)390 brcmf_find_wpsie(const u8 *parse, u32 len)
391 {
392 const struct brcmf_tlv *ie;
393
394 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
395 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
396 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
397 return (struct brcmf_vs_tlv *)ie;
398 }
399 return NULL;
400 }
401
brcmf_vif_change_validate(struct brcmf_cfg80211_info * cfg,struct brcmf_cfg80211_vif * vif,enum nl80211_iftype new_type)402 static int brcmf_vif_change_validate(struct brcmf_cfg80211_info *cfg,
403 struct brcmf_cfg80211_vif *vif,
404 enum nl80211_iftype new_type)
405 {
406 struct brcmf_cfg80211_vif *pos;
407 bool check_combos = false;
408 int ret = 0;
409 struct iface_combination_params params = {
410 .num_different_channels = 1,
411 };
412
413 list_for_each_entry(pos, &cfg->vif_list, list)
414 if (pos == vif) {
415 params.iftype_num[new_type]++;
416 } else {
417 /* concurrent interfaces so need check combinations */
418 check_combos = true;
419 params.iftype_num[pos->wdev.iftype]++;
420 }
421
422 if (check_combos)
423 ret = cfg80211_check_combinations(cfg->wiphy, ¶ms);
424
425 return ret;
426 }
427
brcmf_vif_add_validate(struct brcmf_cfg80211_info * cfg,enum nl80211_iftype new_type)428 static int brcmf_vif_add_validate(struct brcmf_cfg80211_info *cfg,
429 enum nl80211_iftype new_type)
430 {
431 struct brcmf_cfg80211_vif *pos;
432 struct iface_combination_params params = {
433 .num_different_channels = 1,
434 };
435
436 list_for_each_entry(pos, &cfg->vif_list, list)
437 params.iftype_num[pos->wdev.iftype]++;
438
439 params.iftype_num[new_type]++;
440 return cfg80211_check_combinations(cfg->wiphy, ¶ms);
441 }
442
convert_key_from_CPU(struct brcmf_wsec_key * key,struct brcmf_wsec_key_le * key_le)443 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
444 struct brcmf_wsec_key_le *key_le)
445 {
446 key_le->index = cpu_to_le32(key->index);
447 key_le->len = cpu_to_le32(key->len);
448 key_le->algo = cpu_to_le32(key->algo);
449 key_le->flags = cpu_to_le32(key->flags);
450 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
451 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
452 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
453 memcpy(key_le->data, key->data, sizeof(key->data));
454 memcpy(key_le->ea, key->ea, sizeof(key->ea));
455 }
456
457 static int
send_key_to_dongle(struct brcmf_if * ifp,struct brcmf_wsec_key * key)458 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key)
459 {
460 int err;
461 struct brcmf_wsec_key_le key_le;
462
463 convert_key_from_CPU(key, &key_le);
464
465 brcmf_netdev_wait_pend8021x(ifp);
466
467 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le,
468 sizeof(key_le));
469
470 if (err)
471 brcmf_err("wsec_key error (%d)\n", err);
472 return err;
473 }
474
475 static void
brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev * wdev)476 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
477 {
478 struct brcmf_cfg80211_vif *vif;
479 struct brcmf_if *ifp;
480
481 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
482 ifp = vif->ifp;
483
484 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
485 (wdev->iftype == NL80211_IFTYPE_AP) ||
486 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
487 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
488 ADDR_DIRECT);
489 else
490 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
491 ADDR_INDIRECT);
492 }
493
brcmf_get_first_free_bsscfgidx(struct brcmf_pub * drvr)494 static int brcmf_get_first_free_bsscfgidx(struct brcmf_pub *drvr)
495 {
496 int bsscfgidx;
497
498 for (bsscfgidx = 0; bsscfgidx < BRCMF_MAX_IFS; bsscfgidx++) {
499 /* bsscfgidx 1 is reserved for legacy P2P */
500 if (bsscfgidx == 1)
501 continue;
502 if (!drvr->iflist[bsscfgidx])
503 return bsscfgidx;
504 }
505
506 return -ENOMEM;
507 }
508
brcmf_cfg80211_request_ap_if(struct brcmf_if * ifp)509 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
510 {
511 struct brcmf_mbss_ssid_le mbss_ssid_le;
512 int bsscfgidx;
513 int err;
514
515 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
516 bsscfgidx = brcmf_get_first_free_bsscfgidx(ifp->drvr);
517 if (bsscfgidx < 0)
518 return bsscfgidx;
519
520 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
521 mbss_ssid_le.SSID_len = cpu_to_le32(5);
522 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
523
524 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
525 sizeof(mbss_ssid_le));
526 if (err < 0)
527 brcmf_err("setting ssid failed %d\n", err);
528
529 return err;
530 }
531
532 /**
533 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
534 *
535 * @wiphy: wiphy device of new interface.
536 * @name: name of the new interface.
537 * @params: contains mac address for AP device.
538 */
539 static
brcmf_ap_add_vif(struct wiphy * wiphy,const char * name,struct vif_params * params)540 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
541 struct vif_params *params)
542 {
543 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
544 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
545 struct brcmf_cfg80211_vif *vif;
546 int err;
547
548 if (brcmf_cfg80211_vif_event_armed(cfg))
549 return ERR_PTR(-EBUSY);
550
551 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
552
553 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP);
554 if (IS_ERR(vif))
555 return (struct wireless_dev *)vif;
556
557 brcmf_cfg80211_arm_vif_event(cfg, vif);
558
559 err = brcmf_cfg80211_request_ap_if(ifp);
560 if (err) {
561 brcmf_cfg80211_arm_vif_event(cfg, NULL);
562 goto fail;
563 }
564
565 /* wait for firmware event */
566 err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD,
567 BRCMF_VIF_EVENT_TIMEOUT);
568 brcmf_cfg80211_arm_vif_event(cfg, NULL);
569 if (!err) {
570 brcmf_err("timeout occurred\n");
571 err = -EIO;
572 goto fail;
573 }
574
575 /* interface created in firmware */
576 ifp = vif->ifp;
577 if (!ifp) {
578 brcmf_err("no if pointer provided\n");
579 err = -ENOENT;
580 goto fail;
581 }
582
583 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
584 err = brcmf_net_attach(ifp, true);
585 if (err) {
586 brcmf_err("Registering netdevice failed\n");
587 free_netdev(ifp->ndev);
588 goto fail;
589 }
590
591 return &ifp->vif->wdev;
592
593 fail:
594 brcmf_free_vif(vif);
595 return ERR_PTR(err);
596 }
597
brcmf_is_apmode(struct brcmf_cfg80211_vif * vif)598 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
599 {
600 enum nl80211_iftype iftype;
601
602 iftype = vif->wdev.iftype;
603 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
604 }
605
brcmf_is_ibssmode(struct brcmf_cfg80211_vif * vif)606 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
607 {
608 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
609 }
610
brcmf_cfg80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)611 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
612 const char *name,
613 unsigned char name_assign_type,
614 enum nl80211_iftype type,
615 struct vif_params *params)
616 {
617 struct wireless_dev *wdev;
618 int err;
619
620 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
621 err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type);
622 if (err) {
623 brcmf_err("iface validation failed: err=%d\n", err);
624 return ERR_PTR(err);
625 }
626 switch (type) {
627 case NL80211_IFTYPE_ADHOC:
628 case NL80211_IFTYPE_STATION:
629 case NL80211_IFTYPE_AP_VLAN:
630 case NL80211_IFTYPE_WDS:
631 case NL80211_IFTYPE_MONITOR:
632 case NL80211_IFTYPE_MESH_POINT:
633 return ERR_PTR(-EOPNOTSUPP);
634 case NL80211_IFTYPE_AP:
635 wdev = brcmf_ap_add_vif(wiphy, name, params);
636 break;
637 case NL80211_IFTYPE_P2P_CLIENT:
638 case NL80211_IFTYPE_P2P_GO:
639 case NL80211_IFTYPE_P2P_DEVICE:
640 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, params);
641 break;
642 case NL80211_IFTYPE_UNSPECIFIED:
643 default:
644 return ERR_PTR(-EINVAL);
645 }
646
647 if (IS_ERR(wdev))
648 brcmf_err("add iface %s type %d failed: err=%d\n",
649 name, type, (int)PTR_ERR(wdev));
650 else
651 brcmf_cfg80211_update_proto_addr_mode(wdev);
652
653 return wdev;
654 }
655
brcmf_scan_config_mpc(struct brcmf_if * ifp,int mpc)656 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
657 {
658 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
659 brcmf_set_mpc(ifp, mpc);
660 }
661
brcmf_set_mpc(struct brcmf_if * ifp,int mpc)662 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
663 {
664 s32 err = 0;
665
666 if (check_vif_up(ifp->vif)) {
667 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
668 if (err) {
669 brcmf_err("fail to set mpc\n");
670 return;
671 }
672 brcmf_dbg(INFO, "MPC : %d\n", mpc);
673 }
674 }
675
brcmf_notify_escan_complete(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,bool aborted,bool fw_abort)676 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
677 struct brcmf_if *ifp, bool aborted,
678 bool fw_abort)
679 {
680 struct brcmf_scan_params_le params_le;
681 struct cfg80211_scan_request *scan_request;
682 u64 reqid;
683 u32 bucket;
684 s32 err = 0;
685
686 brcmf_dbg(SCAN, "Enter\n");
687
688 /* clear scan request, because the FW abort can cause a second call */
689 /* to this functon and might cause a double cfg80211_scan_done */
690 scan_request = cfg->scan_request;
691 cfg->scan_request = NULL;
692
693 if (timer_pending(&cfg->escan_timeout))
694 del_timer_sync(&cfg->escan_timeout);
695
696 if (fw_abort) {
697 /* Do a scan abort to stop the driver's scan engine */
698 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
699 memset(¶ms_le, 0, sizeof(params_le));
700 eth_broadcast_addr(params_le.bssid);
701 params_le.bss_type = DOT11_BSSTYPE_ANY;
702 params_le.scan_type = 0;
703 params_le.channel_num = cpu_to_le32(1);
704 params_le.nprobes = cpu_to_le32(1);
705 params_le.active_time = cpu_to_le32(-1);
706 params_le.passive_time = cpu_to_le32(-1);
707 params_le.home_time = cpu_to_le32(-1);
708 /* Scan is aborted by setting channel_list[0] to -1 */
709 params_le.channel_list[0] = cpu_to_le16(-1);
710 /* E-Scan (or anyother type) can be aborted by SCAN */
711 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
712 ¶ms_le, sizeof(params_le));
713 if (err)
714 brcmf_err("Scan abort failed\n");
715 }
716
717 brcmf_scan_config_mpc(ifp, 1);
718
719 /*
720 * e-scan can be initiated internally
721 * which takes precedence.
722 */
723 if (cfg->int_escan_map) {
724 brcmf_dbg(SCAN, "scheduled scan completed (%x)\n",
725 cfg->int_escan_map);
726 while (cfg->int_escan_map) {
727 bucket = __ffs(cfg->int_escan_map);
728 cfg->int_escan_map &= ~BIT(bucket);
729 reqid = brcmf_pno_find_reqid_by_bucket(cfg->pno,
730 bucket);
731 if (!aborted) {
732 brcmf_dbg(SCAN, "report results: reqid=%llu\n",
733 reqid);
734 cfg80211_sched_scan_results(cfg_to_wiphy(cfg),
735 reqid);
736 }
737 }
738 } else if (scan_request) {
739 struct cfg80211_scan_info info = {
740 .aborted = aborted,
741 };
742
743 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
744 aborted ? "Aborted" : "Done");
745 cfg80211_scan_done(scan_request, &info);
746 }
747 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
748 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
749
750 return err;
751 }
752
brcmf_cfg80211_del_ap_iface(struct wiphy * wiphy,struct wireless_dev * wdev)753 static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy,
754 struct wireless_dev *wdev)
755 {
756 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
757 struct net_device *ndev = wdev->netdev;
758 struct brcmf_if *ifp = netdev_priv(ndev);
759 int ret;
760 int err;
761
762 brcmf_cfg80211_arm_vif_event(cfg, ifp->vif);
763
764 err = brcmf_fil_bsscfg_data_set(ifp, "interface_remove", NULL, 0);
765 if (err) {
766 brcmf_err("interface_remove failed %d\n", err);
767 goto err_unarm;
768 }
769
770 /* wait for firmware event */
771 ret = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL,
772 BRCMF_VIF_EVENT_TIMEOUT);
773 if (!ret) {
774 brcmf_err("timeout occurred\n");
775 err = -EIO;
776 goto err_unarm;
777 }
778
779 brcmf_remove_interface(ifp, true);
780
781 err_unarm:
782 brcmf_cfg80211_arm_vif_event(cfg, NULL);
783 return err;
784 }
785
786 static
brcmf_cfg80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)787 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
788 {
789 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
790 struct net_device *ndev = wdev->netdev;
791
792 if (ndev && ndev == cfg_to_ndev(cfg))
793 return -ENOTSUPP;
794
795 /* vif event pending in firmware */
796 if (brcmf_cfg80211_vif_event_armed(cfg))
797 return -EBUSY;
798
799 if (ndev) {
800 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
801 cfg->escan_info.ifp == netdev_priv(ndev))
802 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
803 true, true);
804
805 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
806 }
807
808 switch (wdev->iftype) {
809 case NL80211_IFTYPE_ADHOC:
810 case NL80211_IFTYPE_STATION:
811 case NL80211_IFTYPE_AP_VLAN:
812 case NL80211_IFTYPE_WDS:
813 case NL80211_IFTYPE_MONITOR:
814 case NL80211_IFTYPE_MESH_POINT:
815 return -EOPNOTSUPP;
816 case NL80211_IFTYPE_AP:
817 return brcmf_cfg80211_del_ap_iface(wiphy, wdev);
818 case NL80211_IFTYPE_P2P_CLIENT:
819 case NL80211_IFTYPE_P2P_GO:
820 case NL80211_IFTYPE_P2P_DEVICE:
821 return brcmf_p2p_del_vif(wiphy, wdev);
822 case NL80211_IFTYPE_UNSPECIFIED:
823 default:
824 return -EINVAL;
825 }
826 return -EOPNOTSUPP;
827 }
828
829 static s32
brcmf_cfg80211_change_iface(struct wiphy * wiphy,struct net_device * ndev,enum nl80211_iftype type,struct vif_params * params)830 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
831 enum nl80211_iftype type,
832 struct vif_params *params)
833 {
834 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
835 struct brcmf_if *ifp = netdev_priv(ndev);
836 struct brcmf_cfg80211_vif *vif = ifp->vif;
837 s32 infra = 0;
838 s32 ap = 0;
839 s32 err = 0;
840
841 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, type=%d\n", ifp->bsscfgidx,
842 type);
843
844 /* WAR: There are a number of p2p interface related problems which
845 * need to be handled initially (before doing the validate).
846 * wpa_supplicant tends to do iface changes on p2p device/client/go
847 * which are not always possible/allowed. However we need to return
848 * OK otherwise the wpa_supplicant wont start. The situation differs
849 * on configuration and setup (p2pon=1 module param). The first check
850 * is to see if the request is a change to station for p2p iface.
851 */
852 if ((type == NL80211_IFTYPE_STATION) &&
853 ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
854 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) ||
855 (vif->wdev.iftype == NL80211_IFTYPE_P2P_DEVICE))) {
856 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
857 /* Now depending on whether module param p2pon=1 was used the
858 * response needs to be either 0 or EOPNOTSUPP. The reason is
859 * that if p2pon=1 is used, but a newer supplicant is used then
860 * we should return an error, as this combination wont work.
861 * In other situations 0 is returned and supplicant will start
862 * normally. It will give a trace in cfg80211, but it is the
863 * only way to get it working. Unfortunately this will result
864 * in situation where we wont support new supplicant in
865 * combination with module param p2pon=1, but that is the way
866 * it is. If the user tries this then unloading of driver might
867 * fail/lock.
868 */
869 if (cfg->p2p.p2pdev_dynamically)
870 return -EOPNOTSUPP;
871 else
872 return 0;
873 }
874 err = brcmf_vif_change_validate(wiphy_to_cfg(wiphy), vif, type);
875 if (err) {
876 brcmf_err("iface validation failed: err=%d\n", err);
877 return err;
878 }
879 switch (type) {
880 case NL80211_IFTYPE_MONITOR:
881 case NL80211_IFTYPE_WDS:
882 brcmf_err("type (%d) : currently we do not support this type\n",
883 type);
884 return -EOPNOTSUPP;
885 case NL80211_IFTYPE_ADHOC:
886 infra = 0;
887 break;
888 case NL80211_IFTYPE_STATION:
889 infra = 1;
890 break;
891 case NL80211_IFTYPE_AP:
892 case NL80211_IFTYPE_P2P_GO:
893 ap = 1;
894 break;
895 default:
896 err = -EINVAL;
897 goto done;
898 }
899
900 if (ap) {
901 if (type == NL80211_IFTYPE_P2P_GO) {
902 brcmf_dbg(INFO, "IF Type = P2P GO\n");
903 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
904 }
905 if (!err) {
906 brcmf_dbg(INFO, "IF Type = AP\n");
907 }
908 } else {
909 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
910 if (err) {
911 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
912 err = -EAGAIN;
913 goto done;
914 }
915 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
916 "Adhoc" : "Infra");
917 }
918 ndev->ieee80211_ptr->iftype = type;
919
920 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
921
922 done:
923 brcmf_dbg(TRACE, "Exit\n");
924
925 return err;
926 }
927
brcmf_escan_prep(struct brcmf_cfg80211_info * cfg,struct brcmf_scan_params_le * params_le,struct cfg80211_scan_request * request)928 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
929 struct brcmf_scan_params_le *params_le,
930 struct cfg80211_scan_request *request)
931 {
932 u32 n_ssids;
933 u32 n_channels;
934 s32 i;
935 s32 offset;
936 u16 chanspec;
937 char *ptr;
938 struct brcmf_ssid_le ssid_le;
939
940 eth_broadcast_addr(params_le->bssid);
941 params_le->bss_type = DOT11_BSSTYPE_ANY;
942 params_le->scan_type = BRCMF_SCANTYPE_ACTIVE;
943 params_le->channel_num = 0;
944 params_le->nprobes = cpu_to_le32(-1);
945 params_le->active_time = cpu_to_le32(-1);
946 params_le->passive_time = cpu_to_le32(-1);
947 params_le->home_time = cpu_to_le32(-1);
948 memset(¶ms_le->ssid_le, 0, sizeof(params_le->ssid_le));
949
950 n_ssids = request->n_ssids;
951 n_channels = request->n_channels;
952
953 /* Copy channel array if applicable */
954 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
955 n_channels);
956 if (n_channels > 0) {
957 for (i = 0; i < n_channels; i++) {
958 chanspec = channel_to_chanspec(&cfg->d11inf,
959 request->channels[i]);
960 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
961 request->channels[i]->hw_value, chanspec);
962 params_le->channel_list[i] = cpu_to_le16(chanspec);
963 }
964 } else {
965 brcmf_dbg(SCAN, "Scanning all channels\n");
966 }
967 /* Copy ssid array if applicable */
968 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
969 if (n_ssids > 0) {
970 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
971 n_channels * sizeof(u16);
972 offset = roundup(offset, sizeof(u32));
973 ptr = (char *)params_le + offset;
974 for (i = 0; i < n_ssids; i++) {
975 memset(&ssid_le, 0, sizeof(ssid_le));
976 ssid_le.SSID_len =
977 cpu_to_le32(request->ssids[i].ssid_len);
978 memcpy(ssid_le.SSID, request->ssids[i].ssid,
979 request->ssids[i].ssid_len);
980 if (!ssid_le.SSID_len)
981 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
982 else
983 brcmf_dbg(SCAN, "%d: scan for %.32s size=%d\n",
984 i, ssid_le.SSID, ssid_le.SSID_len);
985 memcpy(ptr, &ssid_le, sizeof(ssid_le));
986 ptr += sizeof(ssid_le);
987 }
988 } else {
989 brcmf_dbg(SCAN, "Performing passive scan\n");
990 params_le->scan_type = BRCMF_SCANTYPE_PASSIVE;
991 }
992 /* Adding mask to channel numbers */
993 params_le->channel_num =
994 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
995 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
996 }
997
998 static s32
brcmf_run_escan(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,struct cfg80211_scan_request * request)999 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
1000 struct cfg80211_scan_request *request)
1001 {
1002 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
1003 offsetof(struct brcmf_escan_params_le, params_le);
1004 struct brcmf_escan_params_le *params;
1005 s32 err = 0;
1006
1007 brcmf_dbg(SCAN, "E-SCAN START\n");
1008
1009 if (request != NULL) {
1010 /* Allocate space for populating ssids in struct */
1011 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
1012
1013 /* Allocate space for populating ssids in struct */
1014 params_size += sizeof(struct brcmf_ssid_le) * request->n_ssids;
1015 }
1016
1017 params = kzalloc(params_size, GFP_KERNEL);
1018 if (!params) {
1019 err = -ENOMEM;
1020 goto exit;
1021 }
1022 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
1023 brcmf_escan_prep(cfg, ¶ms->params_le, request);
1024 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
1025 params->action = cpu_to_le16(WL_ESCAN_ACTION_START);
1026 params->sync_id = cpu_to_le16(0x1234);
1027
1028 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
1029 if (err) {
1030 if (err == -EBUSY)
1031 brcmf_dbg(INFO, "system busy : escan canceled\n");
1032 else
1033 brcmf_err("error (%d)\n", err);
1034 }
1035
1036 kfree(params);
1037 exit:
1038 return err;
1039 }
1040
1041 static s32
brcmf_do_escan(struct brcmf_if * ifp,struct cfg80211_scan_request * request)1042 brcmf_do_escan(struct brcmf_if *ifp, struct cfg80211_scan_request *request)
1043 {
1044 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
1045 s32 err;
1046 struct brcmf_scan_results *results;
1047 struct escan_info *escan = &cfg->escan_info;
1048
1049 brcmf_dbg(SCAN, "Enter\n");
1050 escan->ifp = ifp;
1051 escan->wiphy = cfg->wiphy;
1052 escan->escan_state = WL_ESCAN_STATE_SCANNING;
1053
1054 brcmf_scan_config_mpc(ifp, 0);
1055 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1056 results->version = 0;
1057 results->count = 0;
1058 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1059
1060 err = escan->run(cfg, ifp, request);
1061 if (err)
1062 brcmf_scan_config_mpc(ifp, 1);
1063 return err;
1064 }
1065
1066 static s32
brcmf_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)1067 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1068 {
1069 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1070 struct brcmf_cfg80211_vif *vif;
1071 s32 err = 0;
1072
1073 brcmf_dbg(TRACE, "Enter\n");
1074 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1075 if (!check_vif_up(vif))
1076 return -EIO;
1077
1078 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1079 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1080 return -EAGAIN;
1081 }
1082 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1083 brcmf_err("Scanning being aborted: status (%lu)\n",
1084 cfg->scan_status);
1085 return -EAGAIN;
1086 }
1087 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1088 brcmf_err("Scanning suppressed: status (%lu)\n",
1089 cfg->scan_status);
1090 return -EAGAIN;
1091 }
1092 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state)) {
1093 brcmf_err("Connecting: status (%lu)\n", vif->sme_state);
1094 return -EAGAIN;
1095 }
1096
1097 /* If scan req comes for p2p0, send it over primary I/F */
1098 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1099 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1100
1101 brcmf_dbg(SCAN, "START ESCAN\n");
1102
1103 cfg->scan_request = request;
1104 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1105
1106 cfg->escan_info.run = brcmf_run_escan;
1107 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1108 if (err)
1109 goto scan_out;
1110
1111 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG,
1112 request->ie, request->ie_len);
1113 if (err)
1114 goto scan_out;
1115
1116 err = brcmf_do_escan(vif->ifp, request);
1117 if (err)
1118 goto scan_out;
1119
1120 /* Arm scan timeout timer */
1121 mod_timer(&cfg->escan_timeout,
1122 jiffies + msecs_to_jiffies(BRCMF_ESCAN_TIMER_INTERVAL_MS));
1123
1124 return 0;
1125
1126 scan_out:
1127 brcmf_err("scan error (%d)\n", err);
1128 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1129 cfg->scan_request = NULL;
1130 return err;
1131 }
1132
brcmf_set_rts(struct net_device * ndev,u32 rts_threshold)1133 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1134 {
1135 s32 err = 0;
1136
1137 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1138 rts_threshold);
1139 if (err)
1140 brcmf_err("Error (%d)\n", err);
1141
1142 return err;
1143 }
1144
brcmf_set_frag(struct net_device * ndev,u32 frag_threshold)1145 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1146 {
1147 s32 err = 0;
1148
1149 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1150 frag_threshold);
1151 if (err)
1152 brcmf_err("Error (%d)\n", err);
1153
1154 return err;
1155 }
1156
brcmf_set_retry(struct net_device * ndev,u32 retry,bool l)1157 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1158 {
1159 s32 err = 0;
1160 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1161
1162 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1163 if (err) {
1164 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1165 return err;
1166 }
1167 return err;
1168 }
1169
brcmf_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)1170 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1171 {
1172 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1173 struct net_device *ndev = cfg_to_ndev(cfg);
1174 struct brcmf_if *ifp = netdev_priv(ndev);
1175 s32 err = 0;
1176
1177 brcmf_dbg(TRACE, "Enter\n");
1178 if (!check_vif_up(ifp->vif))
1179 return -EIO;
1180
1181 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1182 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1183 cfg->conf->rts_threshold = wiphy->rts_threshold;
1184 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1185 if (!err)
1186 goto done;
1187 }
1188 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1189 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1190 cfg->conf->frag_threshold = wiphy->frag_threshold;
1191 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1192 if (!err)
1193 goto done;
1194 }
1195 if (changed & WIPHY_PARAM_RETRY_LONG
1196 && (cfg->conf->retry_long != wiphy->retry_long)) {
1197 cfg->conf->retry_long = wiphy->retry_long;
1198 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1199 if (!err)
1200 goto done;
1201 }
1202 if (changed & WIPHY_PARAM_RETRY_SHORT
1203 && (cfg->conf->retry_short != wiphy->retry_short)) {
1204 cfg->conf->retry_short = wiphy->retry_short;
1205 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1206 if (!err)
1207 goto done;
1208 }
1209
1210 done:
1211 brcmf_dbg(TRACE, "Exit\n");
1212 return err;
1213 }
1214
brcmf_init_prof(struct brcmf_cfg80211_profile * prof)1215 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1216 {
1217 memset(prof, 0, sizeof(*prof));
1218 }
1219
brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg * e)1220 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
1221 {
1222 u16 reason;
1223
1224 switch (e->event_code) {
1225 case BRCMF_E_DEAUTH:
1226 case BRCMF_E_DEAUTH_IND:
1227 case BRCMF_E_DISASSOC_IND:
1228 reason = e->reason;
1229 break;
1230 case BRCMF_E_LINK:
1231 default:
1232 reason = 0;
1233 break;
1234 }
1235 return reason;
1236 }
1237
brcmf_set_pmk(struct brcmf_if * ifp,const u8 * pmk_data,u16 pmk_len)1238 static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len)
1239 {
1240 struct brcmf_wsec_pmk_le pmk;
1241 int i, err;
1242
1243 /* convert to firmware key format */
1244 pmk.key_len = cpu_to_le16(pmk_len << 1);
1245 pmk.flags = cpu_to_le16(BRCMF_WSEC_PASSPHRASE);
1246 for (i = 0; i < pmk_len; i++)
1247 snprintf(&pmk.key[2 * i], 3, "%02x", pmk_data[i]);
1248
1249 /* store psk in firmware */
1250 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK,
1251 &pmk, sizeof(pmk));
1252 if (err < 0)
1253 brcmf_err("failed to change PSK in firmware (len=%u)\n",
1254 pmk_len);
1255
1256 return err;
1257 }
1258
brcmf_link_down(struct brcmf_cfg80211_vif * vif,u16 reason)1259 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
1260 {
1261 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1262 s32 err = 0;
1263
1264 brcmf_dbg(TRACE, "Enter\n");
1265
1266 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1267 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n");
1268 err = brcmf_fil_cmd_data_set(vif->ifp,
1269 BRCMF_C_DISASSOC, NULL, 0);
1270 if (err) {
1271 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1272 }
1273 if ((vif->wdev.iftype == NL80211_IFTYPE_STATION) ||
1274 (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT))
1275 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
1276 true, GFP_KERNEL);
1277 }
1278 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1279 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1280 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1281 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
1282 brcmf_set_pmk(vif->ifp, NULL, 0);
1283 vif->profile.use_fwsup = BRCMF_PROFILE_FWSUP_NONE;
1284 }
1285 brcmf_dbg(TRACE, "Exit\n");
1286 }
1287
1288 static s32
brcmf_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_ibss_params * params)1289 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1290 struct cfg80211_ibss_params *params)
1291 {
1292 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1293 struct brcmf_if *ifp = netdev_priv(ndev);
1294 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1295 struct brcmf_join_params join_params;
1296 size_t join_params_size = 0;
1297 s32 err = 0;
1298 s32 wsec = 0;
1299 s32 bcnprd;
1300 u16 chanspec;
1301 u32 ssid_len;
1302
1303 brcmf_dbg(TRACE, "Enter\n");
1304 if (!check_vif_up(ifp->vif))
1305 return -EIO;
1306
1307 if (params->ssid)
1308 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1309 else {
1310 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1311 return -EOPNOTSUPP;
1312 }
1313
1314 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1315
1316 if (params->bssid)
1317 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1318 else
1319 brcmf_dbg(CONN, "No BSSID specified\n");
1320
1321 if (params->chandef.chan)
1322 brcmf_dbg(CONN, "channel: %d\n",
1323 params->chandef.chan->center_freq);
1324 else
1325 brcmf_dbg(CONN, "no channel specified\n");
1326
1327 if (params->channel_fixed)
1328 brcmf_dbg(CONN, "fixed channel required\n");
1329 else
1330 brcmf_dbg(CONN, "no fixed channel required\n");
1331
1332 if (params->ie && params->ie_len)
1333 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1334 else
1335 brcmf_dbg(CONN, "no ie specified\n");
1336
1337 if (params->beacon_interval)
1338 brcmf_dbg(CONN, "beacon interval: %d\n",
1339 params->beacon_interval);
1340 else
1341 brcmf_dbg(CONN, "no beacon interval specified\n");
1342
1343 if (params->basic_rates)
1344 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1345 else
1346 brcmf_dbg(CONN, "no basic rates specified\n");
1347
1348 if (params->privacy)
1349 brcmf_dbg(CONN, "privacy required\n");
1350 else
1351 brcmf_dbg(CONN, "no privacy required\n");
1352
1353 /* Configure Privacy for starter */
1354 if (params->privacy)
1355 wsec |= WEP_ENABLED;
1356
1357 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1358 if (err) {
1359 brcmf_err("wsec failed (%d)\n", err);
1360 goto done;
1361 }
1362
1363 /* Configure Beacon Interval for starter */
1364 if (params->beacon_interval)
1365 bcnprd = params->beacon_interval;
1366 else
1367 bcnprd = 100;
1368
1369 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1370 if (err) {
1371 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1372 goto done;
1373 }
1374
1375 /* Configure required join parameter */
1376 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1377
1378 /* SSID */
1379 ssid_len = min_t(u32, params->ssid_len, IEEE80211_MAX_SSID_LEN);
1380 memcpy(join_params.ssid_le.SSID, params->ssid, ssid_len);
1381 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len);
1382 join_params_size = sizeof(join_params.ssid_le);
1383
1384 /* BSSID */
1385 if (params->bssid) {
1386 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1387 join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1388 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1389 } else {
1390 eth_broadcast_addr(join_params.params_le.bssid);
1391 eth_zero_addr(profile->bssid);
1392 }
1393
1394 /* Channel */
1395 if (params->chandef.chan) {
1396 u32 target_channel;
1397
1398 cfg->channel =
1399 ieee80211_frequency_to_channel(
1400 params->chandef.chan->center_freq);
1401 if (params->channel_fixed) {
1402 /* adding chanspec */
1403 chanspec = chandef_to_chanspec(&cfg->d11inf,
1404 ¶ms->chandef);
1405 join_params.params_le.chanspec_list[0] =
1406 cpu_to_le16(chanspec);
1407 join_params.params_le.chanspec_num = cpu_to_le32(1);
1408 join_params_size += sizeof(join_params.params_le);
1409 }
1410
1411 /* set channel for starter */
1412 target_channel = cfg->channel;
1413 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1414 target_channel);
1415 if (err) {
1416 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1417 goto done;
1418 }
1419 } else
1420 cfg->channel = 0;
1421
1422 cfg->ibss_starter = false;
1423
1424
1425 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1426 &join_params, join_params_size);
1427 if (err) {
1428 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1429 goto done;
1430 }
1431
1432 done:
1433 if (err)
1434 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1435 brcmf_dbg(TRACE, "Exit\n");
1436 return err;
1437 }
1438
1439 static s32
brcmf_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * ndev)1440 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1441 {
1442 struct brcmf_if *ifp = netdev_priv(ndev);
1443
1444 brcmf_dbg(TRACE, "Enter\n");
1445 if (!check_vif_up(ifp->vif)) {
1446 /* When driver is being unloaded, it can end up here. If an
1447 * error is returned then later on a debug trace in the wireless
1448 * core module will be printed. To avoid this 0 is returned.
1449 */
1450 return 0;
1451 }
1452
1453 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
1454 brcmf_net_setcarrier(ifp, false);
1455
1456 brcmf_dbg(TRACE, "Exit\n");
1457
1458 return 0;
1459 }
1460
brcmf_set_wpa_version(struct net_device * ndev,struct cfg80211_connect_params * sme)1461 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1462 struct cfg80211_connect_params *sme)
1463 {
1464 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1465 struct brcmf_cfg80211_security *sec;
1466 s32 val = 0;
1467 s32 err = 0;
1468
1469 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1470 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1471 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1472 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1473 else
1474 val = WPA_AUTH_DISABLED;
1475 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1476 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1477 if (err) {
1478 brcmf_err("set wpa_auth failed (%d)\n", err);
1479 return err;
1480 }
1481 sec = &profile->sec;
1482 sec->wpa_versions = sme->crypto.wpa_versions;
1483 return err;
1484 }
1485
brcmf_set_auth_type(struct net_device * ndev,struct cfg80211_connect_params * sme)1486 static s32 brcmf_set_auth_type(struct net_device *ndev,
1487 struct cfg80211_connect_params *sme)
1488 {
1489 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1490 struct brcmf_cfg80211_security *sec;
1491 s32 val = 0;
1492 s32 err = 0;
1493
1494 switch (sme->auth_type) {
1495 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1496 val = 0;
1497 brcmf_dbg(CONN, "open system\n");
1498 break;
1499 case NL80211_AUTHTYPE_SHARED_KEY:
1500 val = 1;
1501 brcmf_dbg(CONN, "shared key\n");
1502 break;
1503 default:
1504 val = 2;
1505 brcmf_dbg(CONN, "automatic, auth type (%d)\n", sme->auth_type);
1506 break;
1507 }
1508
1509 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1510 if (err) {
1511 brcmf_err("set auth failed (%d)\n", err);
1512 return err;
1513 }
1514 sec = &profile->sec;
1515 sec->auth_type = sme->auth_type;
1516 return err;
1517 }
1518
1519 static s32
brcmf_set_wsec_mode(struct net_device * ndev,struct cfg80211_connect_params * sme)1520 brcmf_set_wsec_mode(struct net_device *ndev,
1521 struct cfg80211_connect_params *sme)
1522 {
1523 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1524 struct brcmf_cfg80211_security *sec;
1525 s32 pval = 0;
1526 s32 gval = 0;
1527 s32 wsec;
1528 s32 err = 0;
1529
1530 if (sme->crypto.n_ciphers_pairwise) {
1531 switch (sme->crypto.ciphers_pairwise[0]) {
1532 case WLAN_CIPHER_SUITE_WEP40:
1533 case WLAN_CIPHER_SUITE_WEP104:
1534 pval = WEP_ENABLED;
1535 break;
1536 case WLAN_CIPHER_SUITE_TKIP:
1537 pval = TKIP_ENABLED;
1538 break;
1539 case WLAN_CIPHER_SUITE_CCMP:
1540 pval = AES_ENABLED;
1541 break;
1542 case WLAN_CIPHER_SUITE_AES_CMAC:
1543 pval = AES_ENABLED;
1544 break;
1545 default:
1546 brcmf_err("invalid cipher pairwise (%d)\n",
1547 sme->crypto.ciphers_pairwise[0]);
1548 return -EINVAL;
1549 }
1550 }
1551 if (sme->crypto.cipher_group) {
1552 switch (sme->crypto.cipher_group) {
1553 case WLAN_CIPHER_SUITE_WEP40:
1554 case WLAN_CIPHER_SUITE_WEP104:
1555 gval = WEP_ENABLED;
1556 break;
1557 case WLAN_CIPHER_SUITE_TKIP:
1558 gval = TKIP_ENABLED;
1559 break;
1560 case WLAN_CIPHER_SUITE_CCMP:
1561 gval = AES_ENABLED;
1562 break;
1563 case WLAN_CIPHER_SUITE_AES_CMAC:
1564 gval = AES_ENABLED;
1565 break;
1566 default:
1567 brcmf_err("invalid cipher group (%d)\n",
1568 sme->crypto.cipher_group);
1569 return -EINVAL;
1570 }
1571 }
1572
1573 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1574 /* In case of privacy, but no security and WPS then simulate */
1575 /* setting AES. WPS-2.0 allows no security */
1576 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1577 sme->privacy)
1578 pval = AES_ENABLED;
1579
1580 wsec = pval | gval;
1581 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1582 if (err) {
1583 brcmf_err("error (%d)\n", err);
1584 return err;
1585 }
1586
1587 sec = &profile->sec;
1588 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1589 sec->cipher_group = sme->crypto.cipher_group;
1590
1591 return err;
1592 }
1593
1594 static s32
brcmf_set_key_mgmt(struct net_device * ndev,struct cfg80211_connect_params * sme)1595 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1596 {
1597 struct brcmf_if *ifp = netdev_priv(ndev);
1598 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1599 s32 val;
1600 s32 err;
1601 const struct brcmf_tlv *rsn_ie;
1602 const u8 *ie;
1603 u32 ie_len;
1604 u32 offset;
1605 u16 rsn_cap;
1606 u32 mfp;
1607 u16 count;
1608
1609 profile->use_fwsup = BRCMF_PROFILE_FWSUP_NONE;
1610
1611 if (!sme->crypto.n_akm_suites)
1612 return 0;
1613
1614 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev), "wpa_auth", &val);
1615 if (err) {
1616 brcmf_err("could not get wpa_auth (%d)\n", err);
1617 return err;
1618 }
1619 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1620 switch (sme->crypto.akm_suites[0]) {
1621 case WLAN_AKM_SUITE_8021X:
1622 val = WPA_AUTH_UNSPECIFIED;
1623 if (sme->want_1x)
1624 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
1625 break;
1626 case WLAN_AKM_SUITE_PSK:
1627 val = WPA_AUTH_PSK;
1628 break;
1629 default:
1630 brcmf_err("invalid cipher group (%d)\n",
1631 sme->crypto.cipher_group);
1632 return -EINVAL;
1633 }
1634 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1635 switch (sme->crypto.akm_suites[0]) {
1636 case WLAN_AKM_SUITE_8021X:
1637 val = WPA2_AUTH_UNSPECIFIED;
1638 if (sme->want_1x)
1639 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
1640 break;
1641 case WLAN_AKM_SUITE_8021X_SHA256:
1642 val = WPA2_AUTH_1X_SHA256;
1643 if (sme->want_1x)
1644 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
1645 break;
1646 case WLAN_AKM_SUITE_PSK_SHA256:
1647 val = WPA2_AUTH_PSK_SHA256;
1648 break;
1649 case WLAN_AKM_SUITE_PSK:
1650 val = WPA2_AUTH_PSK;
1651 break;
1652 default:
1653 brcmf_err("invalid cipher group (%d)\n",
1654 sme->crypto.cipher_group);
1655 return -EINVAL;
1656 }
1657 }
1658
1659 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_1X)
1660 brcmf_dbg(INFO, "using 1X offload\n");
1661
1662 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
1663 goto skip_mfp_config;
1664 /* The MFP mode (1 or 2) needs to be determined, parse IEs. The
1665 * IE will not be verified, just a quick search for MFP config
1666 */
1667 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, sme->ie_len,
1668 WLAN_EID_RSN);
1669 if (!rsn_ie)
1670 goto skip_mfp_config;
1671 ie = (const u8 *)rsn_ie;
1672 ie_len = rsn_ie->len + TLV_HDR_LEN;
1673 /* Skip unicast suite */
1674 offset = TLV_HDR_LEN + WPA_IE_VERSION_LEN + WPA_IE_MIN_OUI_LEN;
1675 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len)
1676 goto skip_mfp_config;
1677 /* Skip multicast suite */
1678 count = ie[offset] + (ie[offset + 1] << 8);
1679 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN);
1680 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len)
1681 goto skip_mfp_config;
1682 /* Skip auth key management suite(s) */
1683 count = ie[offset] + (ie[offset + 1] << 8);
1684 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN);
1685 if (offset + WPA_IE_SUITE_COUNT_LEN > ie_len)
1686 goto skip_mfp_config;
1687 /* Ready to read capabilities */
1688 mfp = BRCMF_MFP_NONE;
1689 rsn_cap = ie[offset] + (ie[offset + 1] << 8);
1690 if (rsn_cap & RSN_CAP_MFPR_MASK)
1691 mfp = BRCMF_MFP_REQUIRED;
1692 else if (rsn_cap & RSN_CAP_MFPC_MASK)
1693 mfp = BRCMF_MFP_CAPABLE;
1694 brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "mfp", mfp);
1695
1696 skip_mfp_config:
1697 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1698 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1699 if (err) {
1700 brcmf_err("could not set wpa_auth (%d)\n", err);
1701 return err;
1702 }
1703
1704 return err;
1705 }
1706
1707 static s32
brcmf_set_sharedkey(struct net_device * ndev,struct cfg80211_connect_params * sme)1708 brcmf_set_sharedkey(struct net_device *ndev,
1709 struct cfg80211_connect_params *sme)
1710 {
1711 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1712 struct brcmf_cfg80211_security *sec;
1713 struct brcmf_wsec_key key;
1714 s32 val;
1715 s32 err = 0;
1716
1717 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1718
1719 if (sme->key_len == 0)
1720 return 0;
1721
1722 sec = &profile->sec;
1723 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1724 sec->wpa_versions, sec->cipher_pairwise);
1725
1726 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1727 return 0;
1728
1729 if (!(sec->cipher_pairwise &
1730 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1731 return 0;
1732
1733 memset(&key, 0, sizeof(key));
1734 key.len = (u32) sme->key_len;
1735 key.index = (u32) sme->key_idx;
1736 if (key.len > sizeof(key.data)) {
1737 brcmf_err("Too long key length (%u)\n", key.len);
1738 return -EINVAL;
1739 }
1740 memcpy(key.data, sme->key, key.len);
1741 key.flags = BRCMF_PRIMARY_KEY;
1742 switch (sec->cipher_pairwise) {
1743 case WLAN_CIPHER_SUITE_WEP40:
1744 key.algo = CRYPTO_ALGO_WEP1;
1745 break;
1746 case WLAN_CIPHER_SUITE_WEP104:
1747 key.algo = CRYPTO_ALGO_WEP128;
1748 break;
1749 default:
1750 brcmf_err("Invalid algorithm (%d)\n",
1751 sme->crypto.ciphers_pairwise[0]);
1752 return -EINVAL;
1753 }
1754 /* Set the new key/index */
1755 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1756 key.len, key.index, key.algo);
1757 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1758 err = send_key_to_dongle(netdev_priv(ndev), &key);
1759 if (err)
1760 return err;
1761
1762 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1763 brcmf_dbg(CONN, "set auth_type to shared key\n");
1764 val = WL_AUTH_SHARED_KEY; /* shared key */
1765 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1766 if (err)
1767 brcmf_err("set auth failed (%d)\n", err);
1768 }
1769 return err;
1770 }
1771
1772 static
brcmf_war_auth_type(struct brcmf_if * ifp,enum nl80211_auth_type type)1773 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1774 enum nl80211_auth_type type)
1775 {
1776 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1777 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1778 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1779 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1780 }
1781 return type;
1782 }
1783
brcmf_set_join_pref(struct brcmf_if * ifp,struct cfg80211_bss_selection * bss_select)1784 static void brcmf_set_join_pref(struct brcmf_if *ifp,
1785 struct cfg80211_bss_selection *bss_select)
1786 {
1787 struct brcmf_join_pref_params join_pref_params[2];
1788 enum nl80211_band band;
1789 int err, i = 0;
1790
1791 join_pref_params[i].len = 2;
1792 join_pref_params[i].rssi_gain = 0;
1793
1794 if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF)
1795 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO);
1796
1797 switch (bss_select->behaviour) {
1798 case __NL80211_BSS_SELECT_ATTR_INVALID:
1799 brcmf_c_set_joinpref_default(ifp);
1800 return;
1801 case NL80211_BSS_SELECT_ATTR_BAND_PREF:
1802 join_pref_params[i].type = BRCMF_JOIN_PREF_BAND;
1803 band = bss_select->param.band_pref;
1804 join_pref_params[i].band = nl80211_band_to_fwil(band);
1805 i++;
1806 break;
1807 case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST:
1808 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA;
1809 band = bss_select->param.adjust.band;
1810 join_pref_params[i].band = nl80211_band_to_fwil(band);
1811 join_pref_params[i].rssi_gain = bss_select->param.adjust.delta;
1812 i++;
1813 break;
1814 case NL80211_BSS_SELECT_ATTR_RSSI:
1815 default:
1816 break;
1817 }
1818 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI;
1819 join_pref_params[i].len = 2;
1820 join_pref_params[i].rssi_gain = 0;
1821 join_pref_params[i].band = 0;
1822 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
1823 sizeof(join_pref_params));
1824 if (err)
1825 brcmf_err("Set join_pref error (%d)\n", err);
1826 }
1827
1828 static s32
brcmf_cfg80211_connect(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_connect_params * sme)1829 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1830 struct cfg80211_connect_params *sme)
1831 {
1832 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1833 struct brcmf_if *ifp = netdev_priv(ndev);
1834 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1835 struct ieee80211_channel *chan = sme->channel;
1836 struct brcmf_join_params join_params;
1837 size_t join_params_size;
1838 const struct brcmf_tlv *rsn_ie;
1839 const struct brcmf_vs_tlv *wpa_ie;
1840 const void *ie;
1841 u32 ie_len;
1842 struct brcmf_ext_join_params_le *ext_join_params;
1843 u16 chanspec;
1844 s32 err = 0;
1845 u32 ssid_len;
1846
1847 brcmf_dbg(TRACE, "Enter\n");
1848 if (!check_vif_up(ifp->vif))
1849 return -EIO;
1850
1851 if (!sme->ssid) {
1852 brcmf_err("Invalid ssid\n");
1853 return -EOPNOTSUPP;
1854 }
1855
1856 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1857 /* A normal (non P2P) connection request setup. */
1858 ie = NULL;
1859 ie_len = 0;
1860 /* find the WPA_IE */
1861 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1862 if (wpa_ie) {
1863 ie = wpa_ie;
1864 ie_len = wpa_ie->len + TLV_HDR_LEN;
1865 } else {
1866 /* find the RSN_IE */
1867 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1868 sme->ie_len,
1869 WLAN_EID_RSN);
1870 if (rsn_ie) {
1871 ie = rsn_ie;
1872 ie_len = rsn_ie->len + TLV_HDR_LEN;
1873 }
1874 }
1875 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1876 }
1877
1878 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1879 sme->ie, sme->ie_len);
1880 if (err)
1881 brcmf_err("Set Assoc REQ IE Failed\n");
1882 else
1883 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1884
1885 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1886
1887 if (chan) {
1888 cfg->channel =
1889 ieee80211_frequency_to_channel(chan->center_freq);
1890 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1891 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1892 cfg->channel, chan->center_freq, chanspec);
1893 } else {
1894 cfg->channel = 0;
1895 chanspec = 0;
1896 }
1897
1898 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1899
1900 err = brcmf_set_wpa_version(ndev, sme);
1901 if (err) {
1902 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1903 goto done;
1904 }
1905
1906 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1907 err = brcmf_set_auth_type(ndev, sme);
1908 if (err) {
1909 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1910 goto done;
1911 }
1912
1913 err = brcmf_set_wsec_mode(ndev, sme);
1914 if (err) {
1915 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1916 goto done;
1917 }
1918
1919 err = brcmf_set_key_mgmt(ndev, sme);
1920 if (err) {
1921 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1922 goto done;
1923 }
1924
1925 err = brcmf_set_sharedkey(ndev, sme);
1926 if (err) {
1927 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1928 goto done;
1929 }
1930
1931 if (sme->crypto.psk) {
1932 if (WARN_ON(profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE)) {
1933 err = -EINVAL;
1934 goto done;
1935 }
1936 brcmf_dbg(INFO, "using PSK offload\n");
1937 profile->use_fwsup = BRCMF_PROFILE_FWSUP_PSK;
1938 }
1939
1940 if (profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
1941 /* enable firmware supplicant for this interface */
1942 err = brcmf_fil_iovar_int_set(ifp, "sup_wpa", 1);
1943 if (err < 0) {
1944 brcmf_err("failed to enable fw supplicant\n");
1945 goto done;
1946 }
1947 }
1948
1949 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_PSK) {
1950 err = brcmf_set_pmk(ifp, sme->crypto.psk,
1951 BRCMF_WSEC_MAX_PSK_LEN);
1952 if (err)
1953 goto done;
1954 }
1955
1956 /* Join with specific BSSID and cached SSID
1957 * If SSID is zero join based on BSSID only
1958 */
1959 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1960 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1961 if (cfg->channel)
1962 join_params_size += sizeof(u16);
1963 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1964 if (ext_join_params == NULL) {
1965 err = -ENOMEM;
1966 goto done;
1967 }
1968 ssid_len = min_t(u32, sme->ssid_len, IEEE80211_MAX_SSID_LEN);
1969 ext_join_params->ssid_le.SSID_len = cpu_to_le32(ssid_len);
1970 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, ssid_len);
1971 if (ssid_len < IEEE80211_MAX_SSID_LEN)
1972 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n",
1973 ext_join_params->ssid_le.SSID, ssid_len);
1974
1975 /* Set up join scan parameters */
1976 ext_join_params->scan_le.scan_type = -1;
1977 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1978
1979 if (sme->bssid)
1980 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1981 else
1982 eth_broadcast_addr(ext_join_params->assoc_le.bssid);
1983
1984 if (cfg->channel) {
1985 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1986
1987 ext_join_params->assoc_le.chanspec_list[0] =
1988 cpu_to_le16(chanspec);
1989 /* Increase dwell time to receive probe response or detect
1990 * beacon from target AP at a noisy air only during connect
1991 * command.
1992 */
1993 ext_join_params->scan_le.active_time =
1994 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1995 ext_join_params->scan_le.passive_time =
1996 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1997 /* To sync with presence period of VSDB GO send probe request
1998 * more frequently. Probe request will be stopped when it gets
1999 * probe response from target AP/GO.
2000 */
2001 ext_join_params->scan_le.nprobes =
2002 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
2003 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
2004 } else {
2005 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
2006 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
2007 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
2008 }
2009
2010 brcmf_set_join_pref(ifp, &sme->bss_select);
2011
2012 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
2013 join_params_size);
2014 kfree(ext_join_params);
2015 if (!err)
2016 /* This is it. join command worked, we are done */
2017 goto done;
2018
2019 /* join command failed, fallback to set ssid */
2020 memset(&join_params, 0, sizeof(join_params));
2021 join_params_size = sizeof(join_params.ssid_le);
2022
2023 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid_len);
2024 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len);
2025
2026 if (sme->bssid)
2027 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
2028 else
2029 eth_broadcast_addr(join_params.params_le.bssid);
2030
2031 if (cfg->channel) {
2032 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
2033 join_params.params_le.chanspec_num = cpu_to_le32(1);
2034 join_params_size += sizeof(join_params.params_le);
2035 }
2036 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
2037 &join_params, join_params_size);
2038 if (err)
2039 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
2040
2041 done:
2042 if (err)
2043 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
2044 brcmf_dbg(TRACE, "Exit\n");
2045 return err;
2046 }
2047
2048 static s32
brcmf_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * ndev,u16 reason_code)2049 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
2050 u16 reason_code)
2051 {
2052 struct brcmf_if *ifp = netdev_priv(ndev);
2053 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2054 struct brcmf_scb_val_le scbval;
2055 s32 err = 0;
2056
2057 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
2058 if (!check_vif_up(ifp->vif))
2059 return -EIO;
2060
2061 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
2062 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
2063 cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL);
2064
2065 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
2066 scbval.val = cpu_to_le32(reason_code);
2067 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
2068 &scbval, sizeof(scbval));
2069 if (err)
2070 brcmf_err("error (%d)\n", err);
2071
2072 brcmf_dbg(TRACE, "Exit\n");
2073 return err;
2074 }
2075
2076 static s32
brcmf_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,s32 mbm)2077 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
2078 enum nl80211_tx_power_setting type, s32 mbm)
2079 {
2080 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2081 struct net_device *ndev = cfg_to_ndev(cfg);
2082 struct brcmf_if *ifp = netdev_priv(ndev);
2083 s32 err;
2084 s32 disable;
2085 u32 qdbm = 127;
2086
2087 brcmf_dbg(TRACE, "Enter %d %d\n", type, mbm);
2088 if (!check_vif_up(ifp->vif))
2089 return -EIO;
2090
2091 switch (type) {
2092 case NL80211_TX_POWER_AUTOMATIC:
2093 break;
2094 case NL80211_TX_POWER_LIMITED:
2095 case NL80211_TX_POWER_FIXED:
2096 if (mbm < 0) {
2097 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
2098 err = -EINVAL;
2099 goto done;
2100 }
2101 qdbm = MBM_TO_DBM(4 * mbm);
2102 if (qdbm > 127)
2103 qdbm = 127;
2104 qdbm |= WL_TXPWR_OVERRIDE;
2105 break;
2106 default:
2107 brcmf_err("Unsupported type %d\n", type);
2108 err = -EINVAL;
2109 goto done;
2110 }
2111 /* Make sure radio is off or on as far as software is concerned */
2112 disable = WL_RADIO_SW_DISABLE << 16;
2113 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
2114 if (err)
2115 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
2116
2117 err = brcmf_fil_iovar_int_set(ifp, "qtxpower", qdbm);
2118 if (err)
2119 brcmf_err("qtxpower error (%d)\n", err);
2120
2121 done:
2122 brcmf_dbg(TRACE, "Exit %d (qdbm)\n", qdbm & ~WL_TXPWR_OVERRIDE);
2123 return err;
2124 }
2125
2126 static s32
brcmf_cfg80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,s32 * dbm)2127 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
2128 s32 *dbm)
2129 {
2130 struct brcmf_cfg80211_vif *vif = wdev_to_vif(wdev);
2131 s32 qdbm = 0;
2132 s32 err;
2133
2134 brcmf_dbg(TRACE, "Enter\n");
2135 if (!check_vif_up(vif))
2136 return -EIO;
2137
2138 err = brcmf_fil_iovar_int_get(vif->ifp, "qtxpower", &qdbm);
2139 if (err) {
2140 brcmf_err("error (%d)\n", err);
2141 goto done;
2142 }
2143 *dbm = (qdbm & ~WL_TXPWR_OVERRIDE) / 4;
2144
2145 done:
2146 brcmf_dbg(TRACE, "Exit (0x%x %d)\n", qdbm, *dbm);
2147 return err;
2148 }
2149
2150 static s32
brcmf_cfg80211_config_default_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool unicast,bool multicast)2151 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2152 u8 key_idx, bool unicast, bool multicast)
2153 {
2154 struct brcmf_if *ifp = netdev_priv(ndev);
2155 u32 index;
2156 u32 wsec;
2157 s32 err = 0;
2158
2159 brcmf_dbg(TRACE, "Enter\n");
2160 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2161 if (!check_vif_up(ifp->vif))
2162 return -EIO;
2163
2164 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2165 if (err) {
2166 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2167 goto done;
2168 }
2169
2170 if (wsec & WEP_ENABLED) {
2171 /* Just select a new current key */
2172 index = key_idx;
2173 err = brcmf_fil_cmd_int_set(ifp,
2174 BRCMF_C_SET_KEY_PRIMARY, index);
2175 if (err)
2176 brcmf_err("error (%d)\n", err);
2177 }
2178 done:
2179 brcmf_dbg(TRACE, "Exit\n");
2180 return err;
2181 }
2182
2183 static s32
brcmf_cfg80211_del_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool pairwise,const u8 * mac_addr)2184 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2185 u8 key_idx, bool pairwise, const u8 *mac_addr)
2186 {
2187 struct brcmf_if *ifp = netdev_priv(ndev);
2188 struct brcmf_wsec_key *key;
2189 s32 err;
2190
2191 brcmf_dbg(TRACE, "Enter\n");
2192 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2193
2194 if (!check_vif_up(ifp->vif))
2195 return -EIO;
2196
2197 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2198 /* we ignore this key index in this case */
2199 return -EINVAL;
2200 }
2201
2202 key = &ifp->vif->profile.key[key_idx];
2203
2204 if (key->algo == CRYPTO_ALGO_OFF) {
2205 brcmf_dbg(CONN, "Ignore clearing of (never configured) key\n");
2206 return -EINVAL;
2207 }
2208
2209 memset(key, 0, sizeof(*key));
2210 key->index = (u32)key_idx;
2211 key->flags = BRCMF_PRIMARY_KEY;
2212
2213 /* Clear the key/index */
2214 err = send_key_to_dongle(ifp, key);
2215
2216 brcmf_dbg(TRACE, "Exit\n");
2217 return err;
2218 }
2219
2220 static s32
brcmf_cfg80211_add_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)2221 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2222 u8 key_idx, bool pairwise, const u8 *mac_addr,
2223 struct key_params *params)
2224 {
2225 struct brcmf_if *ifp = netdev_priv(ndev);
2226 struct brcmf_wsec_key *key;
2227 s32 val;
2228 s32 wsec;
2229 s32 err;
2230 u8 keybuf[8];
2231 bool ext_key;
2232
2233 brcmf_dbg(TRACE, "Enter\n");
2234 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2235 if (!check_vif_up(ifp->vif))
2236 return -EIO;
2237
2238 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2239 /* we ignore this key index in this case */
2240 brcmf_err("invalid key index (%d)\n", key_idx);
2241 return -EINVAL;
2242 }
2243
2244 if (params->key_len == 0)
2245 return brcmf_cfg80211_del_key(wiphy, ndev, key_idx, pairwise,
2246 mac_addr);
2247
2248 if (params->key_len > sizeof(key->data)) {
2249 brcmf_err("Too long key length (%u)\n", params->key_len);
2250 return -EINVAL;
2251 }
2252
2253 ext_key = false;
2254 if (mac_addr && (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2255 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2256 brcmf_dbg(TRACE, "Ext key, mac %pM", mac_addr);
2257 ext_key = true;
2258 }
2259
2260 key = &ifp->vif->profile.key[key_idx];
2261 memset(key, 0, sizeof(*key));
2262 if ((ext_key) && (!is_multicast_ether_addr(mac_addr)))
2263 memcpy((char *)&key->ea, (void *)mac_addr, ETH_ALEN);
2264 key->len = params->key_len;
2265 key->index = key_idx;
2266 memcpy(key->data, params->key, key->len);
2267 if (!ext_key)
2268 key->flags = BRCMF_PRIMARY_KEY;
2269
2270 switch (params->cipher) {
2271 case WLAN_CIPHER_SUITE_WEP40:
2272 key->algo = CRYPTO_ALGO_WEP1;
2273 val = WEP_ENABLED;
2274 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2275 break;
2276 case WLAN_CIPHER_SUITE_WEP104:
2277 key->algo = CRYPTO_ALGO_WEP128;
2278 val = WEP_ENABLED;
2279 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2280 break;
2281 case WLAN_CIPHER_SUITE_TKIP:
2282 if (!brcmf_is_apmode(ifp->vif)) {
2283 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2284 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2285 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2286 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2287 }
2288 key->algo = CRYPTO_ALGO_TKIP;
2289 val = TKIP_ENABLED;
2290 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2291 break;
2292 case WLAN_CIPHER_SUITE_AES_CMAC:
2293 key->algo = CRYPTO_ALGO_AES_CCM;
2294 val = AES_ENABLED;
2295 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2296 break;
2297 case WLAN_CIPHER_SUITE_CCMP:
2298 key->algo = CRYPTO_ALGO_AES_CCM;
2299 val = AES_ENABLED;
2300 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2301 break;
2302 default:
2303 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2304 err = -EINVAL;
2305 goto done;
2306 }
2307
2308 err = send_key_to_dongle(ifp, key);
2309 if (ext_key || err)
2310 goto done;
2311
2312 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2313 if (err) {
2314 brcmf_err("get wsec error (%d)\n", err);
2315 goto done;
2316 }
2317 wsec |= val;
2318 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2319 if (err) {
2320 brcmf_err("set wsec error (%d)\n", err);
2321 goto done;
2322 }
2323
2324 done:
2325 brcmf_dbg(TRACE, "Exit\n");
2326 return err;
2327 }
2328
2329 static s32
brcmf_cfg80211_get_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))2330 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, u8 key_idx,
2331 bool pairwise, const u8 *mac_addr, void *cookie,
2332 void (*callback)(void *cookie,
2333 struct key_params *params))
2334 {
2335 struct key_params params;
2336 struct brcmf_if *ifp = netdev_priv(ndev);
2337 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2338 struct brcmf_cfg80211_security *sec;
2339 s32 wsec;
2340 s32 err = 0;
2341
2342 brcmf_dbg(TRACE, "Enter\n");
2343 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2344 if (!check_vif_up(ifp->vif))
2345 return -EIO;
2346
2347 memset(¶ms, 0, sizeof(params));
2348
2349 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2350 if (err) {
2351 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2352 /* Ignore this error, may happen during DISASSOC */
2353 err = -EAGAIN;
2354 goto done;
2355 }
2356 if (wsec & WEP_ENABLED) {
2357 sec = &profile->sec;
2358 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2359 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2360 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2361 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2362 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2363 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2364 }
2365 } else if (wsec & TKIP_ENABLED) {
2366 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2367 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2368 } else if (wsec & AES_ENABLED) {
2369 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2370 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2371 } else {
2372 brcmf_err("Invalid algo (0x%x)\n", wsec);
2373 err = -EINVAL;
2374 goto done;
2375 }
2376 callback(cookie, ¶ms);
2377
2378 done:
2379 brcmf_dbg(TRACE, "Exit\n");
2380 return err;
2381 }
2382
2383 static s32
brcmf_cfg80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx)2384 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2385 struct net_device *ndev, u8 key_idx)
2386 {
2387 struct brcmf_if *ifp = netdev_priv(ndev);
2388
2389 brcmf_dbg(TRACE, "Enter key_idx %d\n", key_idx);
2390
2391 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
2392 return 0;
2393
2394 brcmf_dbg(INFO, "Not supported\n");
2395
2396 return -EOPNOTSUPP;
2397 }
2398
2399 static void
brcmf_cfg80211_reconfigure_wep(struct brcmf_if * ifp)2400 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2401 {
2402 s32 err;
2403 u8 key_idx;
2404 struct brcmf_wsec_key *key;
2405 s32 wsec;
2406
2407 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2408 key = &ifp->vif->profile.key[key_idx];
2409 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2410 (key->algo == CRYPTO_ALGO_WEP128))
2411 break;
2412 }
2413 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2414 return;
2415
2416 err = send_key_to_dongle(ifp, key);
2417 if (err) {
2418 brcmf_err("Setting WEP key failed (%d)\n", err);
2419 return;
2420 }
2421 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2422 if (err) {
2423 brcmf_err("get wsec error (%d)\n", err);
2424 return;
2425 }
2426 wsec |= WEP_ENABLED;
2427 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2428 if (err)
2429 brcmf_err("set wsec error (%d)\n", err);
2430 }
2431
brcmf_convert_sta_flags(u32 fw_sta_flags,struct station_info * si)2432 static void brcmf_convert_sta_flags(u32 fw_sta_flags, struct station_info *si)
2433 {
2434 struct nl80211_sta_flag_update *sfu;
2435
2436 brcmf_dbg(TRACE, "flags %08x\n", fw_sta_flags);
2437 si->filled |= BIT_ULL(NL80211_STA_INFO_STA_FLAGS);
2438 sfu = &si->sta_flags;
2439 sfu->mask = BIT(NL80211_STA_FLAG_WME) |
2440 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2441 BIT(NL80211_STA_FLAG_ASSOCIATED) |
2442 BIT(NL80211_STA_FLAG_AUTHORIZED);
2443 if (fw_sta_flags & BRCMF_STA_WME)
2444 sfu->set |= BIT(NL80211_STA_FLAG_WME);
2445 if (fw_sta_flags & BRCMF_STA_AUTHE)
2446 sfu->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
2447 if (fw_sta_flags & BRCMF_STA_ASSOC)
2448 sfu->set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
2449 if (fw_sta_flags & BRCMF_STA_AUTHO)
2450 sfu->set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
2451 }
2452
brcmf_fill_bss_param(struct brcmf_if * ifp,struct station_info * si)2453 static void brcmf_fill_bss_param(struct brcmf_if *ifp, struct station_info *si)
2454 {
2455 struct {
2456 __le32 len;
2457 struct brcmf_bss_info_le bss_le;
2458 } *buf;
2459 u16 capability;
2460 int err;
2461
2462 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2463 if (!buf)
2464 return;
2465
2466 buf->len = cpu_to_le32(WL_BSS_INFO_MAX);
2467 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, buf,
2468 WL_BSS_INFO_MAX);
2469 if (err) {
2470 brcmf_err("Failed to get bss info (%d)\n", err);
2471 goto out_kfree;
2472 }
2473 si->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
2474 si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period);
2475 si->bss_param.dtim_period = buf->bss_le.dtim_period;
2476 capability = le16_to_cpu(buf->bss_le.capability);
2477 if (capability & IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT)
2478 si->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
2479 if (capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2480 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
2481 if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
2482 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
2483
2484 out_kfree:
2485 kfree(buf);
2486 }
2487
2488 static s32
brcmf_cfg80211_get_station_ibss(struct brcmf_if * ifp,struct station_info * sinfo)2489 brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp,
2490 struct station_info *sinfo)
2491 {
2492 struct brcmf_scb_val_le scbval;
2493 struct brcmf_pktcnt_le pktcnt;
2494 s32 err;
2495 u32 rate;
2496 u32 rssi;
2497
2498 /* Get the current tx rate */
2499 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2500 if (err < 0) {
2501 brcmf_err("BRCMF_C_GET_RATE error (%d)\n", err);
2502 return err;
2503 }
2504 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
2505 sinfo->txrate.legacy = rate * 5;
2506
2507 memset(&scbval, 0, sizeof(scbval));
2508 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, &scbval,
2509 sizeof(scbval));
2510 if (err) {
2511 brcmf_err("BRCMF_C_GET_RSSI error (%d)\n", err);
2512 return err;
2513 }
2514 rssi = le32_to_cpu(scbval.val);
2515 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
2516 sinfo->signal = rssi;
2517
2518 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_GET_PKTCNTS, &pktcnt,
2519 sizeof(pktcnt));
2520 if (err) {
2521 brcmf_err("BRCMF_C_GET_GET_PKTCNTS error (%d)\n", err);
2522 return err;
2523 }
2524 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS) |
2525 BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC) |
2526 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
2527 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
2528 sinfo->rx_packets = le32_to_cpu(pktcnt.rx_good_pkt);
2529 sinfo->rx_dropped_misc = le32_to_cpu(pktcnt.rx_bad_pkt);
2530 sinfo->tx_packets = le32_to_cpu(pktcnt.tx_good_pkt);
2531 sinfo->tx_failed = le32_to_cpu(pktcnt.tx_bad_pkt);
2532
2533 return 0;
2534 }
2535
2536 static s32
brcmf_cfg80211_get_station(struct wiphy * wiphy,struct net_device * ndev,const u8 * mac,struct station_info * sinfo)2537 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2538 const u8 *mac, struct station_info *sinfo)
2539 {
2540 struct brcmf_if *ifp = netdev_priv(ndev);
2541 struct brcmf_scb_val_le scb_val;
2542 s32 err = 0;
2543 struct brcmf_sta_info_le sta_info_le;
2544 u32 sta_flags;
2545 u32 is_tdls_peer;
2546 s32 total_rssi;
2547 s32 count_rssi;
2548 int rssi;
2549 u32 i;
2550
2551 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2552 if (!check_vif_up(ifp->vif))
2553 return -EIO;
2554
2555 if (brcmf_is_ibssmode(ifp->vif))
2556 return brcmf_cfg80211_get_station_ibss(ifp, sinfo);
2557
2558 memset(&sta_info_le, 0, sizeof(sta_info_le));
2559 memcpy(&sta_info_le, mac, ETH_ALEN);
2560 err = brcmf_fil_iovar_data_get(ifp, "tdls_sta_info",
2561 &sta_info_le,
2562 sizeof(sta_info_le));
2563 is_tdls_peer = !err;
2564 if (err) {
2565 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2566 &sta_info_le,
2567 sizeof(sta_info_le));
2568 if (err < 0) {
2569 brcmf_err("GET STA INFO failed, %d\n", err);
2570 goto done;
2571 }
2572 }
2573 brcmf_dbg(TRACE, "version %d\n", le16_to_cpu(sta_info_le.ver));
2574 sinfo->filled = BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME);
2575 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2576 sta_flags = le32_to_cpu(sta_info_le.flags);
2577 brcmf_convert_sta_flags(sta_flags, sinfo);
2578 sinfo->sta_flags.mask |= BIT(NL80211_STA_FLAG_TDLS_PEER);
2579 if (is_tdls_peer)
2580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
2581 else
2582 sinfo->sta_flags.set &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2583 if (sta_flags & BRCMF_STA_ASSOC) {
2584 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CONNECTED_TIME);
2585 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2586 brcmf_fill_bss_param(ifp, sinfo);
2587 }
2588 if (sta_flags & BRCMF_STA_SCBSTATS) {
2589 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
2590 sinfo->tx_failed = le32_to_cpu(sta_info_le.tx_failures);
2591 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
2592 sinfo->tx_packets = le32_to_cpu(sta_info_le.tx_pkts);
2593 sinfo->tx_packets += le32_to_cpu(sta_info_le.tx_mcast_pkts);
2594 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
2595 sinfo->rx_packets = le32_to_cpu(sta_info_le.rx_ucast_pkts);
2596 sinfo->rx_packets += le32_to_cpu(sta_info_le.rx_mcast_pkts);
2597 if (sinfo->tx_packets) {
2598 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
2599 sinfo->txrate.legacy =
2600 le32_to_cpu(sta_info_le.tx_rate) / 100;
2601 }
2602 if (sinfo->rx_packets) {
2603 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE);
2604 sinfo->rxrate.legacy =
2605 le32_to_cpu(sta_info_le.rx_rate) / 100;
2606 }
2607 if (le16_to_cpu(sta_info_le.ver) >= 4) {
2608 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES);
2609 sinfo->tx_bytes = le64_to_cpu(sta_info_le.tx_tot_bytes);
2610 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES);
2611 sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes);
2612 }
2613 total_rssi = 0;
2614 count_rssi = 0;
2615 for (i = 0; i < BRCMF_ANT_MAX; i++) {
2616 if (sta_info_le.rssi[i]) {
2617 sinfo->chain_signal_avg[count_rssi] =
2618 sta_info_le.rssi[i];
2619 sinfo->chain_signal[count_rssi] =
2620 sta_info_le.rssi[i];
2621 total_rssi += sta_info_le.rssi[i];
2622 count_rssi++;
2623 }
2624 }
2625 if (count_rssi) {
2626 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
2627 sinfo->chains = count_rssi;
2628
2629 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
2630 total_rssi /= count_rssi;
2631 sinfo->signal = total_rssi;
2632 } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2633 &ifp->vif->sme_state)) {
2634 memset(&scb_val, 0, sizeof(scb_val));
2635 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2636 &scb_val, sizeof(scb_val));
2637 if (err) {
2638 brcmf_err("Could not get rssi (%d)\n", err);
2639 goto done;
2640 } else {
2641 rssi = le32_to_cpu(scb_val.val);
2642 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
2643 sinfo->signal = rssi;
2644 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2645 }
2646 }
2647 }
2648 done:
2649 brcmf_dbg(TRACE, "Exit\n");
2650 return err;
2651 }
2652
2653 static int
brcmf_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * ndev,int idx,u8 * mac,struct station_info * sinfo)2654 brcmf_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *ndev,
2655 int idx, u8 *mac, struct station_info *sinfo)
2656 {
2657 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2658 struct brcmf_if *ifp = netdev_priv(ndev);
2659 s32 err;
2660
2661 brcmf_dbg(TRACE, "Enter, idx %d\n", idx);
2662
2663 if (idx == 0) {
2664 cfg->assoclist.count = cpu_to_le32(BRCMF_MAX_ASSOCLIST);
2665 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_ASSOCLIST,
2666 &cfg->assoclist,
2667 sizeof(cfg->assoclist));
2668 if (err) {
2669 brcmf_err("BRCMF_C_GET_ASSOCLIST unsupported, err=%d\n",
2670 err);
2671 cfg->assoclist.count = 0;
2672 return -EOPNOTSUPP;
2673 }
2674 }
2675 if (idx < le32_to_cpu(cfg->assoclist.count)) {
2676 memcpy(mac, cfg->assoclist.mac[idx], ETH_ALEN);
2677 return brcmf_cfg80211_get_station(wiphy, ndev, mac, sinfo);
2678 }
2679 return -ENOENT;
2680 }
2681
2682 static s32
brcmf_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * ndev,bool enabled,s32 timeout)2683 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2684 bool enabled, s32 timeout)
2685 {
2686 s32 pm;
2687 s32 err = 0;
2688 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2689 struct brcmf_if *ifp = netdev_priv(ndev);
2690
2691 brcmf_dbg(TRACE, "Enter\n");
2692
2693 /*
2694 * Powersave enable/disable request is coming from the
2695 * cfg80211 even before the interface is up. In that
2696 * scenario, driver will be storing the power save
2697 * preference in cfg struct to apply this to
2698 * FW later while initializing the dongle
2699 */
2700 cfg->pwr_save = enabled;
2701 if (!check_vif_up(ifp->vif)) {
2702
2703 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2704 goto done;
2705 }
2706
2707 pm = enabled ? PM_FAST : PM_OFF;
2708 /* Do not enable the power save after assoc if it is a p2p interface */
2709 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2710 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2711 pm = PM_OFF;
2712 }
2713 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2714
2715 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2716 if (err) {
2717 if (err == -ENODEV)
2718 brcmf_err("net_device is not ready yet\n");
2719 else
2720 brcmf_err("error (%d)\n", err);
2721 }
2722 done:
2723 brcmf_dbg(TRACE, "Exit\n");
2724 return err;
2725 }
2726
brcmf_inform_single_bss(struct brcmf_cfg80211_info * cfg,struct brcmf_bss_info_le * bi)2727 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2728 struct brcmf_bss_info_le *bi)
2729 {
2730 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2731 struct cfg80211_bss *bss;
2732 enum nl80211_band band;
2733 struct brcmu_chan ch;
2734 u16 channel;
2735 u32 freq;
2736 u16 notify_capability;
2737 u16 notify_interval;
2738 u8 *notify_ie;
2739 size_t notify_ielen;
2740 struct cfg80211_inform_bss bss_data = {};
2741
2742 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2743 brcmf_err("Bss info is larger than buffer. Discarding\n");
2744 return 0;
2745 }
2746
2747 if (!bi->ctl_ch) {
2748 ch.chspec = le16_to_cpu(bi->chanspec);
2749 cfg->d11inf.decchspec(&ch);
2750 bi->ctl_ch = ch.control_ch_num;
2751 }
2752 channel = bi->ctl_ch;
2753
2754 if (channel <= CH_MAX_2G_CHANNEL)
2755 band = NL80211_BAND_2GHZ;
2756 else
2757 band = NL80211_BAND_5GHZ;
2758
2759 freq = ieee80211_channel_to_frequency(channel, band);
2760 bss_data.chan = ieee80211_get_channel(wiphy, freq);
2761 bss_data.scan_width = NL80211_BSS_CHAN_WIDTH_20;
2762 bss_data.boottime_ns = ktime_to_ns(ktime_get_boottime());
2763
2764 notify_capability = le16_to_cpu(bi->capability);
2765 notify_interval = le16_to_cpu(bi->beacon_period);
2766 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2767 notify_ielen = le32_to_cpu(bi->ie_length);
2768 bss_data.signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2769
2770 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2771 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2772 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2773 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2774 brcmf_dbg(CONN, "Signal: %d\n", bss_data.signal);
2775
2776 bss = cfg80211_inform_bss_data(wiphy, &bss_data,
2777 CFG80211_BSS_FTYPE_UNKNOWN,
2778 (const u8 *)bi->BSSID,
2779 0, notify_capability,
2780 notify_interval, notify_ie,
2781 notify_ielen, GFP_KERNEL);
2782
2783 if (!bss)
2784 return -ENOMEM;
2785
2786 cfg80211_put_bss(wiphy, bss);
2787
2788 return 0;
2789 }
2790
2791 static struct brcmf_bss_info_le *
next_bss_le(struct brcmf_scan_results * list,struct brcmf_bss_info_le * bss)2792 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2793 {
2794 if (bss == NULL)
2795 return list->bss_info_le;
2796 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2797 le32_to_cpu(bss->length));
2798 }
2799
brcmf_inform_bss(struct brcmf_cfg80211_info * cfg)2800 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2801 {
2802 struct brcmf_scan_results *bss_list;
2803 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2804 s32 err = 0;
2805 int i;
2806
2807 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2808 if (bss_list->count != 0 &&
2809 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2810 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2811 bss_list->version);
2812 return -EOPNOTSUPP;
2813 }
2814 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2815 for (i = 0; i < bss_list->count; i++) {
2816 bi = next_bss_le(bss_list, bi);
2817 err = brcmf_inform_single_bss(cfg, bi);
2818 if (err)
2819 break;
2820 }
2821 return err;
2822 }
2823
brcmf_inform_ibss(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const u8 * bssid)2824 static s32 brcmf_inform_ibss(struct brcmf_cfg80211_info *cfg,
2825 struct net_device *ndev, const u8 *bssid)
2826 {
2827 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2828 struct ieee80211_channel *notify_channel;
2829 struct brcmf_bss_info_le *bi = NULL;
2830 struct ieee80211_supported_band *band;
2831 struct cfg80211_bss *bss;
2832 struct brcmu_chan ch;
2833 u8 *buf = NULL;
2834 s32 err = 0;
2835 u32 freq;
2836 u16 notify_capability;
2837 u16 notify_interval;
2838 u8 *notify_ie;
2839 size_t notify_ielen;
2840 s32 notify_signal;
2841
2842 brcmf_dbg(TRACE, "Enter\n");
2843
2844 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2845 if (buf == NULL) {
2846 err = -ENOMEM;
2847 goto CleanUp;
2848 }
2849
2850 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2851
2852 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2853 buf, WL_BSS_INFO_MAX);
2854 if (err) {
2855 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2856 goto CleanUp;
2857 }
2858
2859 bi = (struct brcmf_bss_info_le *)(buf + 4);
2860
2861 ch.chspec = le16_to_cpu(bi->chanspec);
2862 cfg->d11inf.decchspec(&ch);
2863
2864 if (ch.band == BRCMU_CHAN_BAND_2G)
2865 band = wiphy->bands[NL80211_BAND_2GHZ];
2866 else
2867 band = wiphy->bands[NL80211_BAND_5GHZ];
2868
2869 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band);
2870 cfg->channel = freq;
2871 notify_channel = ieee80211_get_channel(wiphy, freq);
2872
2873 notify_capability = le16_to_cpu(bi->capability);
2874 notify_interval = le16_to_cpu(bi->beacon_period);
2875 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2876 notify_ielen = le32_to_cpu(bi->ie_length);
2877 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2878
2879 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.control_ch_num, freq);
2880 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2881 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2882 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2883
2884 bss = cfg80211_inform_bss(wiphy, notify_channel,
2885 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2886 notify_capability, notify_interval,
2887 notify_ie, notify_ielen, notify_signal,
2888 GFP_KERNEL);
2889
2890 if (!bss) {
2891 err = -ENOMEM;
2892 goto CleanUp;
2893 }
2894
2895 cfg80211_put_bss(wiphy, bss);
2896
2897 CleanUp:
2898
2899 kfree(buf);
2900
2901 brcmf_dbg(TRACE, "Exit\n");
2902
2903 return err;
2904 }
2905
brcmf_update_bss_info(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp)2906 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2907 struct brcmf_if *ifp)
2908 {
2909 struct brcmf_bss_info_le *bi;
2910 const struct brcmf_tlv *tim;
2911 u16 beacon_interval;
2912 u8 dtim_period;
2913 size_t ie_len;
2914 u8 *ie;
2915 s32 err = 0;
2916
2917 brcmf_dbg(TRACE, "Enter\n");
2918 if (brcmf_is_ibssmode(ifp->vif))
2919 return err;
2920
2921 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2922 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2923 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2924 if (err) {
2925 brcmf_err("Could not get bss info %d\n", err);
2926 goto update_bss_info_out;
2927 }
2928
2929 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2930 err = brcmf_inform_single_bss(cfg, bi);
2931 if (err)
2932 goto update_bss_info_out;
2933
2934 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2935 ie_len = le32_to_cpu(bi->ie_length);
2936 beacon_interval = le16_to_cpu(bi->beacon_period);
2937
2938 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2939 if (tim)
2940 dtim_period = tim->data[1];
2941 else {
2942 /*
2943 * active scan was done so we could not get dtim
2944 * information out of probe response.
2945 * so we speficially query dtim information to dongle.
2946 */
2947 u32 var;
2948 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2949 if (err) {
2950 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2951 goto update_bss_info_out;
2952 }
2953 dtim_period = (u8)var;
2954 }
2955
2956 update_bss_info_out:
2957 brcmf_dbg(TRACE, "Exit");
2958 return err;
2959 }
2960
brcmf_abort_scanning(struct brcmf_cfg80211_info * cfg)2961 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2962 {
2963 struct escan_info *escan = &cfg->escan_info;
2964
2965 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2966 if (cfg->int_escan_map || cfg->scan_request) {
2967 escan->escan_state = WL_ESCAN_STATE_IDLE;
2968 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2969 }
2970 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2971 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2972 }
2973
brcmf_cfg80211_escan_timeout_worker(struct work_struct * work)2974 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2975 {
2976 struct brcmf_cfg80211_info *cfg =
2977 container_of(work, struct brcmf_cfg80211_info,
2978 escan_timeout_work);
2979
2980 brcmf_inform_bss(cfg);
2981 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2982 }
2983
brcmf_escan_timeout(struct timer_list * t)2984 static void brcmf_escan_timeout(struct timer_list *t)
2985 {
2986 struct brcmf_cfg80211_info *cfg =
2987 from_timer(cfg, t, escan_timeout);
2988
2989 if (cfg->int_escan_map || cfg->scan_request) {
2990 brcmf_err("timer expired\n");
2991 schedule_work(&cfg->escan_timeout_work);
2992 }
2993 }
2994
2995 static s32
brcmf_compare_update_same_bss(struct brcmf_cfg80211_info * cfg,struct brcmf_bss_info_le * bss,struct brcmf_bss_info_le * bss_info_le)2996 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2997 struct brcmf_bss_info_le *bss,
2998 struct brcmf_bss_info_le *bss_info_le)
2999 {
3000 struct brcmu_chan ch_bss, ch_bss_info_le;
3001
3002 ch_bss.chspec = le16_to_cpu(bss->chanspec);
3003 cfg->d11inf.decchspec(&ch_bss);
3004 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
3005 cfg->d11inf.decchspec(&ch_bss_info_le);
3006
3007 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
3008 ch_bss.band == ch_bss_info_le.band &&
3009 bss_info_le->SSID_len == bss->SSID_len &&
3010 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
3011 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
3012 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
3013 s16 bss_rssi = le16_to_cpu(bss->RSSI);
3014 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
3015
3016 /* preserve max RSSI if the measurements are
3017 * both on-channel or both off-channel
3018 */
3019 if (bss_info_rssi > bss_rssi)
3020 bss->RSSI = bss_info_le->RSSI;
3021 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
3022 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
3023 /* preserve the on-channel rssi measurement
3024 * if the new measurement is off channel
3025 */
3026 bss->RSSI = bss_info_le->RSSI;
3027 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
3028 }
3029 return 1;
3030 }
3031 return 0;
3032 }
3033
3034 static s32
brcmf_cfg80211_escan_handler(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)3035 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
3036 const struct brcmf_event_msg *e, void *data)
3037 {
3038 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3039 s32 status;
3040 struct brcmf_escan_result_le *escan_result_le;
3041 u32 escan_buflen;
3042 struct brcmf_bss_info_le *bss_info_le;
3043 struct brcmf_bss_info_le *bss = NULL;
3044 u32 bi_length;
3045 struct brcmf_scan_results *list;
3046 u32 i;
3047 bool aborted;
3048
3049 status = e->status;
3050
3051 if (status == BRCMF_E_STATUS_ABORT)
3052 goto exit;
3053
3054 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3055 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx);
3056 return -EPERM;
3057 }
3058
3059 if (status == BRCMF_E_STATUS_PARTIAL) {
3060 brcmf_dbg(SCAN, "ESCAN Partial result\n");
3061 if (e->datalen < sizeof(*escan_result_le)) {
3062 brcmf_err("invalid event data length\n");
3063 goto exit;
3064 }
3065 escan_result_le = (struct brcmf_escan_result_le *) data;
3066 if (!escan_result_le) {
3067 brcmf_err("Invalid escan result (NULL pointer)\n");
3068 goto exit;
3069 }
3070 escan_buflen = le32_to_cpu(escan_result_le->buflen);
3071 if (escan_buflen > BRCMF_ESCAN_BUF_SIZE ||
3072 escan_buflen > e->datalen ||
3073 escan_buflen < sizeof(*escan_result_le)) {
3074 brcmf_err("Invalid escan buffer length: %d\n",
3075 escan_buflen);
3076 goto exit;
3077 }
3078 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
3079 brcmf_err("Invalid bss_count %d: ignoring\n",
3080 escan_result_le->bss_count);
3081 goto exit;
3082 }
3083 bss_info_le = &escan_result_le->bss_info_le;
3084
3085 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
3086 goto exit;
3087
3088 if (!cfg->int_escan_map && !cfg->scan_request) {
3089 brcmf_dbg(SCAN, "result without cfg80211 request\n");
3090 goto exit;
3091 }
3092
3093 bi_length = le32_to_cpu(bss_info_le->length);
3094 if (bi_length != escan_buflen - WL_ESCAN_RESULTS_FIXED_SIZE) {
3095 brcmf_err("Ignoring invalid bss_info length: %d\n",
3096 bi_length);
3097 goto exit;
3098 }
3099
3100 if (!(cfg_to_wiphy(cfg)->interface_modes &
3101 BIT(NL80211_IFTYPE_ADHOC))) {
3102 if (le16_to_cpu(bss_info_le->capability) &
3103 WLAN_CAPABILITY_IBSS) {
3104 brcmf_err("Ignoring IBSS result\n");
3105 goto exit;
3106 }
3107 }
3108
3109 list = (struct brcmf_scan_results *)
3110 cfg->escan_info.escan_buf;
3111 if (bi_length > BRCMF_ESCAN_BUF_SIZE - list->buflen) {
3112 brcmf_err("Buffer is too small: ignoring\n");
3113 goto exit;
3114 }
3115
3116 for (i = 0; i < list->count; i++) {
3117 bss = bss ? (struct brcmf_bss_info_le *)
3118 ((unsigned char *)bss +
3119 le32_to_cpu(bss->length)) : list->bss_info_le;
3120 if (brcmf_compare_update_same_bss(cfg, bss,
3121 bss_info_le))
3122 goto exit;
3123 }
3124 memcpy(&cfg->escan_info.escan_buf[list->buflen], bss_info_le,
3125 bi_length);
3126 list->version = le32_to_cpu(bss_info_le->version);
3127 list->buflen += bi_length;
3128 list->count++;
3129 } else {
3130 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
3131 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
3132 goto exit;
3133 if (cfg->int_escan_map || cfg->scan_request) {
3134 brcmf_inform_bss(cfg);
3135 aborted = status != BRCMF_E_STATUS_SUCCESS;
3136 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
3137 } else
3138 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
3139 status);
3140 }
3141 exit:
3142 return 0;
3143 }
3144
brcmf_init_escan(struct brcmf_cfg80211_info * cfg)3145 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
3146 {
3147 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
3148 brcmf_cfg80211_escan_handler);
3149 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
3150 /* Init scan_timeout timer */
3151 timer_setup(&cfg->escan_timeout, brcmf_escan_timeout, 0);
3152 INIT_WORK(&cfg->escan_timeout_work,
3153 brcmf_cfg80211_escan_timeout_worker);
3154 }
3155
3156 static struct cfg80211_scan_request *
brcmf_alloc_internal_escan_request(struct wiphy * wiphy,u32 n_netinfo)3157 brcmf_alloc_internal_escan_request(struct wiphy *wiphy, u32 n_netinfo) {
3158 struct cfg80211_scan_request *req;
3159 size_t req_size;
3160
3161 req_size = sizeof(*req) +
3162 n_netinfo * sizeof(req->channels[0]) +
3163 n_netinfo * sizeof(*req->ssids);
3164
3165 req = kzalloc(req_size, GFP_KERNEL);
3166 if (req) {
3167 req->wiphy = wiphy;
3168 req->ssids = (void *)(&req->channels[0]) +
3169 n_netinfo * sizeof(req->channels[0]);
3170 }
3171 return req;
3172 }
3173
brcmf_internal_escan_add_info(struct cfg80211_scan_request * req,u8 * ssid,u8 ssid_len,u8 channel)3174 static int brcmf_internal_escan_add_info(struct cfg80211_scan_request *req,
3175 u8 *ssid, u8 ssid_len, u8 channel)
3176 {
3177 struct ieee80211_channel *chan;
3178 enum nl80211_band band;
3179 int freq, i;
3180
3181 if (channel <= CH_MAX_2G_CHANNEL)
3182 band = NL80211_BAND_2GHZ;
3183 else
3184 band = NL80211_BAND_5GHZ;
3185
3186 freq = ieee80211_channel_to_frequency(channel, band);
3187 if (!freq)
3188 return -EINVAL;
3189
3190 chan = ieee80211_get_channel(req->wiphy, freq);
3191 if (!chan)
3192 return -EINVAL;
3193
3194 for (i = 0; i < req->n_channels; i++) {
3195 if (req->channels[i] == chan)
3196 break;
3197 }
3198 if (i == req->n_channels)
3199 req->channels[req->n_channels++] = chan;
3200
3201 for (i = 0; i < req->n_ssids; i++) {
3202 if (req->ssids[i].ssid_len == ssid_len &&
3203 !memcmp(req->ssids[i].ssid, ssid, ssid_len))
3204 break;
3205 }
3206 if (i == req->n_ssids) {
3207 memcpy(req->ssids[req->n_ssids].ssid, ssid, ssid_len);
3208 req->ssids[req->n_ssids++].ssid_len = ssid_len;
3209 }
3210 return 0;
3211 }
3212
brcmf_start_internal_escan(struct brcmf_if * ifp,u32 fwmap,struct cfg80211_scan_request * request)3213 static int brcmf_start_internal_escan(struct brcmf_if *ifp, u32 fwmap,
3214 struct cfg80211_scan_request *request)
3215 {
3216 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3217 int err;
3218
3219 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3220 if (cfg->int_escan_map)
3221 brcmf_dbg(SCAN, "aborting internal scan: map=%u\n",
3222 cfg->int_escan_map);
3223 /* Abort any on-going scan */
3224 brcmf_abort_scanning(cfg);
3225 }
3226
3227 brcmf_dbg(SCAN, "start internal scan: map=%u\n", fwmap);
3228 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3229 cfg->escan_info.run = brcmf_run_escan;
3230 err = brcmf_do_escan(ifp, request);
3231 if (err) {
3232 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3233 return err;
3234 }
3235 cfg->int_escan_map = fwmap;
3236 return 0;
3237 }
3238
3239 static struct brcmf_pno_net_info_le *
brcmf_get_netinfo_array(struct brcmf_pno_scanresults_le * pfn_v1)3240 brcmf_get_netinfo_array(struct brcmf_pno_scanresults_le *pfn_v1)
3241 {
3242 struct brcmf_pno_scanresults_v2_le *pfn_v2;
3243 struct brcmf_pno_net_info_le *netinfo;
3244
3245 switch (pfn_v1->version) {
3246 default:
3247 WARN_ON(1);
3248 /* fall-thru */
3249 case cpu_to_le32(1):
3250 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v1 + 1);
3251 break;
3252 case cpu_to_le32(2):
3253 pfn_v2 = (struct brcmf_pno_scanresults_v2_le *)pfn_v1;
3254 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v2 + 1);
3255 break;
3256 }
3257
3258 return netinfo;
3259 }
3260
3261 /* PFN result doesn't have all the info which are required by the supplicant
3262 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3263 * via wl_inform_single_bss in the required format. Escan does require the
3264 * scan request in the form of cfg80211_scan_request. For timebeing, create
3265 * cfg80211_scan_request one out of the received PNO event.
3266 */
3267 static s32
brcmf_notify_sched_scan_results(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)3268 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3269 const struct brcmf_event_msg *e, void *data)
3270 {
3271 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3272 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3273 struct cfg80211_scan_request *request = NULL;
3274 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3275 int i, err = 0;
3276 struct brcmf_pno_scanresults_le *pfn_result;
3277 u32 bucket_map;
3278 u32 result_count;
3279 u32 status;
3280 u32 datalen;
3281
3282 brcmf_dbg(SCAN, "Enter\n");
3283
3284 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
3285 brcmf_dbg(SCAN, "Event data to small. Ignore\n");
3286 return 0;
3287 }
3288
3289 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3290 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3291 return 0;
3292 }
3293
3294 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3295 result_count = le32_to_cpu(pfn_result->count);
3296 status = le32_to_cpu(pfn_result->status);
3297
3298 /* PFN event is limited to fit 512 bytes so we may get
3299 * multiple NET_FOUND events. For now place a warning here.
3300 */
3301 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3302 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3303 if (!result_count) {
3304 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3305 goto out_err;
3306 }
3307
3308 netinfo_start = brcmf_get_netinfo_array(pfn_result);
3309 datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result);
3310 if (datalen < result_count * sizeof(*netinfo)) {
3311 brcmf_err("insufficient event data\n");
3312 goto out_err;
3313 }
3314
3315 request = brcmf_alloc_internal_escan_request(wiphy,
3316 result_count);
3317 if (!request) {
3318 err = -ENOMEM;
3319 goto out_err;
3320 }
3321
3322 bucket_map = 0;
3323 for (i = 0; i < result_count; i++) {
3324 netinfo = &netinfo_start[i];
3325
3326 if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN)
3327 netinfo->SSID_len = IEEE80211_MAX_SSID_LEN;
3328 brcmf_dbg(SCAN, "SSID:%.32s Channel:%d\n",
3329 netinfo->SSID, netinfo->channel);
3330 bucket_map |= brcmf_pno_get_bucket_map(cfg->pno, netinfo);
3331 err = brcmf_internal_escan_add_info(request,
3332 netinfo->SSID,
3333 netinfo->SSID_len,
3334 netinfo->channel);
3335 if (err)
3336 goto out_err;
3337 }
3338
3339 if (!bucket_map)
3340 goto free_req;
3341
3342 err = brcmf_start_internal_escan(ifp, bucket_map, request);
3343 if (!err)
3344 goto free_req;
3345
3346 out_err:
3347 cfg80211_sched_scan_stopped(wiphy, 0);
3348 free_req:
3349 kfree(request);
3350 return err;
3351 }
3352
3353 static int
brcmf_cfg80211_sched_scan_start(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_sched_scan_request * req)3354 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3355 struct net_device *ndev,
3356 struct cfg80211_sched_scan_request *req)
3357 {
3358 struct brcmf_if *ifp = netdev_priv(ndev);
3359 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3360
3361 brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n",
3362 req->n_match_sets, req->n_ssids);
3363
3364 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3365 brcmf_err("Scanning suppressed: status=%lu\n",
3366 cfg->scan_status);
3367 return -EAGAIN;
3368 }
3369
3370 if (req->n_match_sets <= 0) {
3371 brcmf_dbg(SCAN, "invalid number of matchsets specified: %d\n",
3372 req->n_match_sets);
3373 return -EINVAL;
3374 }
3375
3376 return brcmf_pno_start_sched_scan(ifp, req);
3377 }
3378
brcmf_cfg80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * ndev,u64 reqid)3379 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3380 struct net_device *ndev, u64 reqid)
3381 {
3382 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3383 struct brcmf_if *ifp = netdev_priv(ndev);
3384
3385 brcmf_dbg(SCAN, "enter\n");
3386 brcmf_pno_stop_sched_scan(ifp, reqid);
3387 if (cfg->int_escan_map)
3388 brcmf_notify_escan_complete(cfg, ifp, true, true);
3389 return 0;
3390 }
3391
brcmf_delay(u32 ms)3392 static __always_inline void brcmf_delay(u32 ms)
3393 {
3394 if (ms < 1000 / HZ) {
3395 cond_resched();
3396 mdelay(ms);
3397 } else {
3398 msleep(ms);
3399 }
3400 }
3401
brcmf_config_wowl_pattern(struct brcmf_if * ifp,u8 cmd[4],u8 * pattern,u32 patternsize,u8 * mask,u32 packet_offset)3402 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
3403 u8 *pattern, u32 patternsize, u8 *mask,
3404 u32 packet_offset)
3405 {
3406 struct brcmf_fil_wowl_pattern_le *filter;
3407 u32 masksize;
3408 u32 patternoffset;
3409 u8 *buf;
3410 u32 bufsize;
3411 s32 ret;
3412
3413 masksize = (patternsize + 7) / 8;
3414 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
3415
3416 bufsize = sizeof(*filter) + patternsize + masksize;
3417 buf = kzalloc(bufsize, GFP_KERNEL);
3418 if (!buf)
3419 return -ENOMEM;
3420 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
3421
3422 memcpy(filter->cmd, cmd, 4);
3423 filter->masksize = cpu_to_le32(masksize);
3424 filter->offset = cpu_to_le32(packet_offset);
3425 filter->patternoffset = cpu_to_le32(patternoffset);
3426 filter->patternsize = cpu_to_le32(patternsize);
3427 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
3428
3429 if ((mask) && (masksize))
3430 memcpy(buf + sizeof(*filter), mask, masksize);
3431 if ((pattern) && (patternsize))
3432 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
3433
3434 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
3435
3436 kfree(buf);
3437 return ret;
3438 }
3439
3440 static s32
brcmf_wowl_nd_results(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)3441 brcmf_wowl_nd_results(struct brcmf_if *ifp, const struct brcmf_event_msg *e,
3442 void *data)
3443 {
3444 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3445 struct brcmf_pno_scanresults_le *pfn_result;
3446 struct brcmf_pno_net_info_le *netinfo;
3447
3448 brcmf_dbg(SCAN, "Enter\n");
3449
3450 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
3451 brcmf_dbg(SCAN, "Event data to small. Ignore\n");
3452 return 0;
3453 }
3454
3455 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3456
3457 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3458 brcmf_dbg(SCAN, "PFN NET LOST event. Ignore\n");
3459 return 0;
3460 }
3461
3462 if (le32_to_cpu(pfn_result->count) < 1) {
3463 brcmf_err("Invalid result count, expected 1 (%d)\n",
3464 le32_to_cpu(pfn_result->count));
3465 return -EINVAL;
3466 }
3467
3468 netinfo = brcmf_get_netinfo_array(pfn_result);
3469 memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len);
3470 cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len;
3471 cfg->wowl.nd->n_channels = 1;
3472 cfg->wowl.nd->channels[0] =
3473 ieee80211_channel_to_frequency(netinfo->channel,
3474 netinfo->channel <= CH_MAX_2G_CHANNEL ?
3475 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ);
3476 cfg->wowl.nd_info->n_matches = 1;
3477 cfg->wowl.nd_info->matches[0] = cfg->wowl.nd;
3478
3479 /* Inform (the resume task) that the net detect information was recvd */
3480 cfg->wowl.nd_data_completed = true;
3481 wake_up(&cfg->wowl.nd_data_wait);
3482
3483 return 0;
3484 }
3485
3486 #ifdef CONFIG_PM
3487
brcmf_report_wowl_wakeind(struct wiphy * wiphy,struct brcmf_if * ifp)3488 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp)
3489 {
3490 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3491 struct brcmf_wowl_wakeind_le wake_ind_le;
3492 struct cfg80211_wowlan_wakeup wakeup_data;
3493 struct cfg80211_wowlan_wakeup *wakeup;
3494 u32 wakeind;
3495 s32 err;
3496 int timeout;
3497
3498 err = brcmf_fil_iovar_data_get(ifp, "wowl_wakeind", &wake_ind_le,
3499 sizeof(wake_ind_le));
3500 if (err) {
3501 brcmf_err("Get wowl_wakeind failed, err = %d\n", err);
3502 return;
3503 }
3504
3505 wakeind = le32_to_cpu(wake_ind_le.ucode_wakeind);
3506 if (wakeind & (BRCMF_WOWL_MAGIC | BRCMF_WOWL_DIS | BRCMF_WOWL_BCN |
3507 BRCMF_WOWL_RETR | BRCMF_WOWL_NET |
3508 BRCMF_WOWL_PFN_FOUND)) {
3509 wakeup = &wakeup_data;
3510 memset(&wakeup_data, 0, sizeof(wakeup_data));
3511 wakeup_data.pattern_idx = -1;
3512
3513 if (wakeind & BRCMF_WOWL_MAGIC) {
3514 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_MAGIC\n");
3515 wakeup_data.magic_pkt = true;
3516 }
3517 if (wakeind & BRCMF_WOWL_DIS) {
3518 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_DIS\n");
3519 wakeup_data.disconnect = true;
3520 }
3521 if (wakeind & BRCMF_WOWL_BCN) {
3522 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_BCN\n");
3523 wakeup_data.disconnect = true;
3524 }
3525 if (wakeind & BRCMF_WOWL_RETR) {
3526 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_RETR\n");
3527 wakeup_data.disconnect = true;
3528 }
3529 if (wakeind & BRCMF_WOWL_NET) {
3530 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_NET\n");
3531 /* For now always map to pattern 0, no API to get
3532 * correct information available at the moment.
3533 */
3534 wakeup_data.pattern_idx = 0;
3535 }
3536 if (wakeind & BRCMF_WOWL_PFN_FOUND) {
3537 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_PFN_FOUND\n");
3538 timeout = wait_event_timeout(cfg->wowl.nd_data_wait,
3539 cfg->wowl.nd_data_completed,
3540 BRCMF_ND_INFO_TIMEOUT);
3541 if (!timeout)
3542 brcmf_err("No result for wowl net detect\n");
3543 else
3544 wakeup_data.net_detect = cfg->wowl.nd_info;
3545 }
3546 if (wakeind & BRCMF_WOWL_GTK_FAILURE) {
3547 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_GTK_FAILURE\n");
3548 wakeup_data.gtk_rekey_failure = true;
3549 }
3550 } else {
3551 wakeup = NULL;
3552 }
3553 cfg80211_report_wowlan_wakeup(&ifp->vif->wdev, wakeup, GFP_KERNEL);
3554 }
3555
3556 #else
3557
brcmf_report_wowl_wakeind(struct wiphy * wiphy,struct brcmf_if * ifp)3558 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp)
3559 {
3560 }
3561
3562 #endif /* CONFIG_PM */
3563
brcmf_cfg80211_resume(struct wiphy * wiphy)3564 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
3565 {
3566 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3567 struct net_device *ndev = cfg_to_ndev(cfg);
3568 struct brcmf_if *ifp = netdev_priv(ndev);
3569
3570 brcmf_dbg(TRACE, "Enter\n");
3571
3572 if (cfg->wowl.active) {
3573 brcmf_report_wowl_wakeind(wiphy, ifp);
3574 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
3575 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
3576 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND))
3577 brcmf_configure_arp_nd_offload(ifp, true);
3578 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
3579 cfg->wowl.pre_pmmode);
3580 cfg->wowl.active = false;
3581 if (cfg->wowl.nd_enabled) {
3582 brcmf_cfg80211_sched_scan_stop(cfg->wiphy, ifp->ndev, 0);
3583 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND);
3584 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
3585 brcmf_notify_sched_scan_results);
3586 cfg->wowl.nd_enabled = false;
3587 }
3588 }
3589 return 0;
3590 }
3591
brcmf_configure_wowl(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,struct cfg80211_wowlan * wowl)3592 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
3593 struct brcmf_if *ifp,
3594 struct cfg80211_wowlan *wowl)
3595 {
3596 u32 wowl_config;
3597 struct brcmf_wowl_wakeind_le wowl_wakeind;
3598 u32 i;
3599
3600 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
3601
3602 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND))
3603 brcmf_configure_arp_nd_offload(ifp, false);
3604 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->wowl.pre_pmmode);
3605 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
3606
3607 wowl_config = 0;
3608 if (wowl->disconnect)
3609 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
3610 if (wowl->magic_pkt)
3611 wowl_config |= BRCMF_WOWL_MAGIC;
3612 if ((wowl->patterns) && (wowl->n_patterns)) {
3613 wowl_config |= BRCMF_WOWL_NET;
3614 for (i = 0; i < wowl->n_patterns; i++) {
3615 brcmf_config_wowl_pattern(ifp, "add",
3616 (u8 *)wowl->patterns[i].pattern,
3617 wowl->patterns[i].pattern_len,
3618 (u8 *)wowl->patterns[i].mask,
3619 wowl->patterns[i].pkt_offset);
3620 }
3621 }
3622 if (wowl->nd_config) {
3623 brcmf_cfg80211_sched_scan_start(cfg->wiphy, ifp->ndev,
3624 wowl->nd_config);
3625 wowl_config |= BRCMF_WOWL_PFN_FOUND;
3626
3627 cfg->wowl.nd_data_completed = false;
3628 cfg->wowl.nd_enabled = true;
3629 /* Now reroute the event for PFN to the wowl function. */
3630 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND);
3631 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
3632 brcmf_wowl_nd_results);
3633 }
3634 if (wowl->gtk_rekey_failure)
3635 wowl_config |= BRCMF_WOWL_GTK_FAILURE;
3636 if (!test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
3637 wowl_config |= BRCMF_WOWL_UNASSOC;
3638
3639 memcpy(&wowl_wakeind, "clear", 6);
3640 brcmf_fil_iovar_data_set(ifp, "wowl_wakeind", &wowl_wakeind,
3641 sizeof(wowl_wakeind));
3642 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3643 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3644 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3645 cfg->wowl.active = true;
3646 }
3647
brcmf_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowl)3648 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3649 struct cfg80211_wowlan *wowl)
3650 {
3651 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3652 struct net_device *ndev = cfg_to_ndev(cfg);
3653 struct brcmf_if *ifp = netdev_priv(ndev);
3654 struct brcmf_cfg80211_vif *vif;
3655
3656 brcmf_dbg(TRACE, "Enter\n");
3657
3658 /* if the primary net_device is not READY there is nothing
3659 * we can do but pray resume goes smoothly.
3660 */
3661 if (!check_vif_up(ifp->vif))
3662 goto exit;
3663
3664 /* Stop scheduled scan */
3665 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO))
3666 brcmf_cfg80211_sched_scan_stop(wiphy, ndev, 0);
3667
3668 /* end any scanning */
3669 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3670 brcmf_abort_scanning(cfg);
3671
3672 if (wowl == NULL) {
3673 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3674 list_for_each_entry(vif, &cfg->vif_list, list) {
3675 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3676 continue;
3677 /* While going to suspend if associated with AP
3678 * disassociate from AP to save power while system is
3679 * in suspended state
3680 */
3681 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED);
3682 /* Make sure WPA_Supplicant receives all the event
3683 * generated due to DISASSOC call to the fw to keep
3684 * the state fw and WPA_Supplicant state consistent
3685 */
3686 brcmf_delay(500);
3687 }
3688 /* Configure MPC */
3689 brcmf_set_mpc(ifp, 1);
3690
3691 } else {
3692 /* Configure WOWL paramaters */
3693 brcmf_configure_wowl(cfg, ifp, wowl);
3694 }
3695
3696 exit:
3697 brcmf_dbg(TRACE, "Exit\n");
3698 /* clear any scanning activity */
3699 cfg->scan_status = 0;
3700 return 0;
3701 }
3702
3703 static __used s32
brcmf_update_pmklist(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp)3704 brcmf_update_pmklist(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp)
3705 {
3706 struct brcmf_pmk_list_le *pmk_list;
3707 int i;
3708 u32 npmk;
3709 s32 err;
3710
3711 pmk_list = &cfg->pmk_list;
3712 npmk = le32_to_cpu(pmk_list->npmk);
3713
3714 brcmf_dbg(CONN, "No of elements %d\n", npmk);
3715 for (i = 0; i < npmk; i++)
3716 brcmf_dbg(CONN, "PMK[%d]: %pM\n", i, &pmk_list->pmk[i].bssid);
3717
3718 err = brcmf_fil_iovar_data_set(ifp, "pmkid_info", pmk_list,
3719 sizeof(*pmk_list));
3720
3721 return err;
3722 }
3723
3724 static s32
brcmf_cfg80211_set_pmksa(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_pmksa * pmksa)3725 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3726 struct cfg80211_pmksa *pmksa)
3727 {
3728 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3729 struct brcmf_if *ifp = netdev_priv(ndev);
3730 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0];
3731 s32 err;
3732 u32 npmk, i;
3733
3734 brcmf_dbg(TRACE, "Enter\n");
3735 if (!check_vif_up(ifp->vif))
3736 return -EIO;
3737
3738 npmk = le32_to_cpu(cfg->pmk_list.npmk);
3739 for (i = 0; i < npmk; i++)
3740 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN))
3741 break;
3742 if (i < BRCMF_MAXPMKID) {
3743 memcpy(pmk[i].bssid, pmksa->bssid, ETH_ALEN);
3744 memcpy(pmk[i].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
3745 if (i == npmk) {
3746 npmk++;
3747 cfg->pmk_list.npmk = cpu_to_le32(npmk);
3748 }
3749 } else {
3750 brcmf_err("Too many PMKSA entries cached %d\n", npmk);
3751 return -EINVAL;
3752 }
3753
3754 brcmf_dbg(CONN, "set_pmksa - PMK bssid: %pM =\n", pmk[npmk].bssid);
3755 for (i = 0; i < WLAN_PMKID_LEN; i += 4)
3756 brcmf_dbg(CONN, "%02x %02x %02x %02x\n", pmk[npmk].pmkid[i],
3757 pmk[npmk].pmkid[i + 1], pmk[npmk].pmkid[i + 2],
3758 pmk[npmk].pmkid[i + 3]);
3759
3760 err = brcmf_update_pmklist(cfg, ifp);
3761
3762 brcmf_dbg(TRACE, "Exit\n");
3763 return err;
3764 }
3765
3766 static s32
brcmf_cfg80211_del_pmksa(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_pmksa * pmksa)3767 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3768 struct cfg80211_pmksa *pmksa)
3769 {
3770 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3771 struct brcmf_if *ifp = netdev_priv(ndev);
3772 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0];
3773 s32 err;
3774 u32 npmk, i;
3775
3776 brcmf_dbg(TRACE, "Enter\n");
3777 if (!check_vif_up(ifp->vif))
3778 return -EIO;
3779
3780 brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", pmksa->bssid);
3781
3782 npmk = le32_to_cpu(cfg->pmk_list.npmk);
3783 for (i = 0; i < npmk; i++)
3784 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN))
3785 break;
3786
3787 if ((npmk > 0) && (i < npmk)) {
3788 for (; i < (npmk - 1); i++) {
3789 memcpy(&pmk[i].bssid, &pmk[i + 1].bssid, ETH_ALEN);
3790 memcpy(&pmk[i].pmkid, &pmk[i + 1].pmkid,
3791 WLAN_PMKID_LEN);
3792 }
3793 memset(&pmk[i], 0, sizeof(*pmk));
3794 cfg->pmk_list.npmk = cpu_to_le32(npmk - 1);
3795 } else {
3796 brcmf_err("Cache entry not found\n");
3797 return -EINVAL;
3798 }
3799
3800 err = brcmf_update_pmklist(cfg, ifp);
3801
3802 brcmf_dbg(TRACE, "Exit\n");
3803 return err;
3804
3805 }
3806
3807 static s32
brcmf_cfg80211_flush_pmksa(struct wiphy * wiphy,struct net_device * ndev)3808 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3809 {
3810 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3811 struct brcmf_if *ifp = netdev_priv(ndev);
3812 s32 err;
3813
3814 brcmf_dbg(TRACE, "Enter\n");
3815 if (!check_vif_up(ifp->vif))
3816 return -EIO;
3817
3818 memset(&cfg->pmk_list, 0, sizeof(cfg->pmk_list));
3819 err = brcmf_update_pmklist(cfg, ifp);
3820
3821 brcmf_dbg(TRACE, "Exit\n");
3822 return err;
3823
3824 }
3825
brcmf_configure_opensecurity(struct brcmf_if * ifp)3826 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3827 {
3828 s32 err;
3829 s32 wpa_val;
3830
3831 /* set auth */
3832 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3833 if (err < 0) {
3834 brcmf_err("auth error %d\n", err);
3835 return err;
3836 }
3837 /* set wsec */
3838 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3839 if (err < 0) {
3840 brcmf_err("wsec error %d\n", err);
3841 return err;
3842 }
3843 /* set upper-layer auth */
3844 if (brcmf_is_ibssmode(ifp->vif))
3845 wpa_val = WPA_AUTH_NONE;
3846 else
3847 wpa_val = WPA_AUTH_DISABLED;
3848 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_val);
3849 if (err < 0) {
3850 brcmf_err("wpa_auth error %d\n", err);
3851 return err;
3852 }
3853
3854 return 0;
3855 }
3856
brcmf_valid_wpa_oui(u8 * oui,bool is_rsn_ie)3857 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3858 {
3859 if (is_rsn_ie)
3860 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3861
3862 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3863 }
3864
3865 static s32
brcmf_configure_wpaie(struct brcmf_if * ifp,const struct brcmf_vs_tlv * wpa_ie,bool is_rsn_ie)3866 brcmf_configure_wpaie(struct brcmf_if *ifp,
3867 const struct brcmf_vs_tlv *wpa_ie,
3868 bool is_rsn_ie)
3869 {
3870 u32 auth = 0; /* d11 open authentication */
3871 u16 count;
3872 s32 err = 0;
3873 s32 len;
3874 u32 i;
3875 u32 wsec;
3876 u32 pval = 0;
3877 u32 gval = 0;
3878 u32 wpa_auth = 0;
3879 u32 offset;
3880 u8 *data;
3881 u16 rsn_cap;
3882 u32 wme_bss_disable;
3883 u32 mfp;
3884
3885 brcmf_dbg(TRACE, "Enter\n");
3886 if (wpa_ie == NULL)
3887 goto exit;
3888
3889 len = wpa_ie->len + TLV_HDR_LEN;
3890 data = (u8 *)wpa_ie;
3891 offset = TLV_HDR_LEN;
3892 if (!is_rsn_ie)
3893 offset += VS_IE_FIXED_HDR_LEN;
3894 else
3895 offset += WPA_IE_VERSION_LEN;
3896
3897 /* check for multicast cipher suite */
3898 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3899 err = -EINVAL;
3900 brcmf_err("no multicast cipher suite\n");
3901 goto exit;
3902 }
3903
3904 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3905 err = -EINVAL;
3906 brcmf_err("ivalid OUI\n");
3907 goto exit;
3908 }
3909 offset += TLV_OUI_LEN;
3910
3911 /* pick up multicast cipher */
3912 switch (data[offset]) {
3913 case WPA_CIPHER_NONE:
3914 gval = 0;
3915 break;
3916 case WPA_CIPHER_WEP_40:
3917 case WPA_CIPHER_WEP_104:
3918 gval = WEP_ENABLED;
3919 break;
3920 case WPA_CIPHER_TKIP:
3921 gval = TKIP_ENABLED;
3922 break;
3923 case WPA_CIPHER_AES_CCM:
3924 gval = AES_ENABLED;
3925 break;
3926 default:
3927 err = -EINVAL;
3928 brcmf_err("Invalid multi cast cipher info\n");
3929 goto exit;
3930 }
3931
3932 offset++;
3933 /* walk thru unicast cipher list and pick up what we recognize */
3934 count = data[offset] + (data[offset + 1] << 8);
3935 offset += WPA_IE_SUITE_COUNT_LEN;
3936 /* Check for unicast suite(s) */
3937 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3938 err = -EINVAL;
3939 brcmf_err("no unicast cipher suite\n");
3940 goto exit;
3941 }
3942 for (i = 0; i < count; i++) {
3943 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3944 err = -EINVAL;
3945 brcmf_err("ivalid OUI\n");
3946 goto exit;
3947 }
3948 offset += TLV_OUI_LEN;
3949 switch (data[offset]) {
3950 case WPA_CIPHER_NONE:
3951 break;
3952 case WPA_CIPHER_WEP_40:
3953 case WPA_CIPHER_WEP_104:
3954 pval |= WEP_ENABLED;
3955 break;
3956 case WPA_CIPHER_TKIP:
3957 pval |= TKIP_ENABLED;
3958 break;
3959 case WPA_CIPHER_AES_CCM:
3960 pval |= AES_ENABLED;
3961 break;
3962 default:
3963 brcmf_err("Invalid unicast security info\n");
3964 }
3965 offset++;
3966 }
3967 /* walk thru auth management suite list and pick up what we recognize */
3968 count = data[offset] + (data[offset + 1] << 8);
3969 offset += WPA_IE_SUITE_COUNT_LEN;
3970 /* Check for auth key management suite(s) */
3971 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3972 err = -EINVAL;
3973 brcmf_err("no auth key mgmt suite\n");
3974 goto exit;
3975 }
3976 for (i = 0; i < count; i++) {
3977 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3978 err = -EINVAL;
3979 brcmf_err("ivalid OUI\n");
3980 goto exit;
3981 }
3982 offset += TLV_OUI_LEN;
3983 switch (data[offset]) {
3984 case RSN_AKM_NONE:
3985 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3986 wpa_auth |= WPA_AUTH_NONE;
3987 break;
3988 case RSN_AKM_UNSPECIFIED:
3989 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3990 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3991 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3992 break;
3993 case RSN_AKM_PSK:
3994 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3995 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3996 (wpa_auth |= WPA_AUTH_PSK);
3997 break;
3998 case RSN_AKM_SHA256_PSK:
3999 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n");
4000 wpa_auth |= WPA2_AUTH_PSK_SHA256;
4001 break;
4002 case RSN_AKM_SHA256_1X:
4003 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n");
4004 wpa_auth |= WPA2_AUTH_1X_SHA256;
4005 break;
4006 default:
4007 brcmf_err("Invalid key mgmt info\n");
4008 }
4009 offset++;
4010 }
4011
4012 mfp = BRCMF_MFP_NONE;
4013 if (is_rsn_ie) {
4014 wme_bss_disable = 1;
4015 if ((offset + RSN_CAP_LEN) <= len) {
4016 rsn_cap = data[offset] + (data[offset + 1] << 8);
4017 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
4018 wme_bss_disable = 0;
4019 if (rsn_cap & RSN_CAP_MFPR_MASK) {
4020 brcmf_dbg(TRACE, "MFP Required\n");
4021 mfp = BRCMF_MFP_REQUIRED;
4022 /* Firmware only supports mfp required in
4023 * combination with WPA2_AUTH_PSK_SHA256 or
4024 * WPA2_AUTH_1X_SHA256.
4025 */
4026 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 |
4027 WPA2_AUTH_1X_SHA256))) {
4028 err = -EINVAL;
4029 goto exit;
4030 }
4031 /* Firmware has requirement that WPA2_AUTH_PSK/
4032 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI
4033 * is to be included in the rsn ie.
4034 */
4035 if (wpa_auth & WPA2_AUTH_PSK_SHA256)
4036 wpa_auth |= WPA2_AUTH_PSK;
4037 else if (wpa_auth & WPA2_AUTH_1X_SHA256)
4038 wpa_auth |= WPA2_AUTH_UNSPECIFIED;
4039 } else if (rsn_cap & RSN_CAP_MFPC_MASK) {
4040 brcmf_dbg(TRACE, "MFP Capable\n");
4041 mfp = BRCMF_MFP_CAPABLE;
4042 }
4043 }
4044 offset += RSN_CAP_LEN;
4045 /* set wme_bss_disable to sync RSN Capabilities */
4046 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
4047 wme_bss_disable);
4048 if (err < 0) {
4049 brcmf_err("wme_bss_disable error %d\n", err);
4050 goto exit;
4051 }
4052
4053 /* Skip PMKID cnt as it is know to be 0 for AP. */
4054 offset += RSN_PMKID_COUNT_LEN;
4055
4056 /* See if there is BIP wpa suite left for MFP */
4057 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) &&
4058 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) {
4059 err = brcmf_fil_bsscfg_data_set(ifp, "bip",
4060 &data[offset],
4061 WPA_IE_MIN_OUI_LEN);
4062 if (err < 0) {
4063 brcmf_err("bip error %d\n", err);
4064 goto exit;
4065 }
4066 }
4067 }
4068 /* FOR WPS , set SES_OW_ENABLED */
4069 wsec = (pval | gval | SES_OW_ENABLED);
4070
4071 /* set auth */
4072 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
4073 if (err < 0) {
4074 brcmf_err("auth error %d\n", err);
4075 goto exit;
4076 }
4077 /* set wsec */
4078 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
4079 if (err < 0) {
4080 brcmf_err("wsec error %d\n", err);
4081 goto exit;
4082 }
4083 /* Configure MFP, this needs to go after wsec otherwise the wsec command
4084 * will overwrite the values set by MFP
4085 */
4086 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) {
4087 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp);
4088 if (err < 0) {
4089 brcmf_err("mfp error %d\n", err);
4090 goto exit;
4091 }
4092 }
4093 /* set upper-layer auth */
4094 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
4095 if (err < 0) {
4096 brcmf_err("wpa_auth error %d\n", err);
4097 goto exit;
4098 }
4099
4100 exit:
4101 return err;
4102 }
4103
4104 static s32
brcmf_parse_vndr_ies(const u8 * vndr_ie_buf,u32 vndr_ie_len,struct parsed_vndr_ies * vndr_ies)4105 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
4106 struct parsed_vndr_ies *vndr_ies)
4107 {
4108 struct brcmf_vs_tlv *vndrie;
4109 struct brcmf_tlv *ie;
4110 struct parsed_vndr_ie_info *parsed_info;
4111 s32 remaining_len;
4112
4113 remaining_len = (s32)vndr_ie_len;
4114 memset(vndr_ies, 0, sizeof(*vndr_ies));
4115
4116 ie = (struct brcmf_tlv *)vndr_ie_buf;
4117 while (ie) {
4118 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
4119 goto next;
4120 vndrie = (struct brcmf_vs_tlv *)ie;
4121 /* len should be bigger than OUI length + one */
4122 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
4123 brcmf_err("invalid vndr ie. length is too small %d\n",
4124 vndrie->len);
4125 goto next;
4126 }
4127 /* if wpa or wme ie, do not add ie */
4128 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
4129 ((vndrie->oui_type == WPA_OUI_TYPE) ||
4130 (vndrie->oui_type == WME_OUI_TYPE))) {
4131 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
4132 goto next;
4133 }
4134
4135 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
4136
4137 /* save vndr ie information */
4138 parsed_info->ie_ptr = (char *)vndrie;
4139 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
4140 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
4141
4142 vndr_ies->count++;
4143
4144 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
4145 parsed_info->vndrie.oui[0],
4146 parsed_info->vndrie.oui[1],
4147 parsed_info->vndrie.oui[2],
4148 parsed_info->vndrie.oui_type);
4149
4150 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
4151 break;
4152 next:
4153 remaining_len -= (ie->len + TLV_HDR_LEN);
4154 if (remaining_len <= TLV_HDR_LEN)
4155 ie = NULL;
4156 else
4157 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
4158 TLV_HDR_LEN);
4159 }
4160 return 0;
4161 }
4162
4163 static u32
brcmf_vndr_ie(u8 * iebuf,s32 pktflag,u8 * ie_ptr,u32 ie_len,s8 * add_del_cmd)4164 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
4165 {
4166
4167 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
4168 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
4169
4170 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]);
4171
4172 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]);
4173
4174 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
4175
4176 return ie_len + VNDR_IE_HDR_SIZE;
4177 }
4178
brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif * vif,s32 pktflag,const u8 * vndr_ie_buf,u32 vndr_ie_len)4179 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
4180 const u8 *vndr_ie_buf, u32 vndr_ie_len)
4181 {
4182 struct brcmf_if *ifp;
4183 struct vif_saved_ie *saved_ie;
4184 s32 err = 0;
4185 u8 *iovar_ie_buf;
4186 u8 *curr_ie_buf;
4187 u8 *mgmt_ie_buf = NULL;
4188 int mgmt_ie_buf_len;
4189 u32 *mgmt_ie_len;
4190 u32 del_add_ie_buf_len = 0;
4191 u32 total_ie_buf_len = 0;
4192 u32 parsed_ie_buf_len = 0;
4193 struct parsed_vndr_ies old_vndr_ies;
4194 struct parsed_vndr_ies new_vndr_ies;
4195 struct parsed_vndr_ie_info *vndrie_info;
4196 s32 i;
4197 u8 *ptr;
4198 int remained_buf_len;
4199
4200 if (!vif)
4201 return -ENODEV;
4202 ifp = vif->ifp;
4203 saved_ie = &vif->saved_ie;
4204
4205 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx,
4206 pktflag);
4207 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4208 if (!iovar_ie_buf)
4209 return -ENOMEM;
4210 curr_ie_buf = iovar_ie_buf;
4211 switch (pktflag) {
4212 case BRCMF_VNDR_IE_PRBREQ_FLAG:
4213 mgmt_ie_buf = saved_ie->probe_req_ie;
4214 mgmt_ie_len = &saved_ie->probe_req_ie_len;
4215 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
4216 break;
4217 case BRCMF_VNDR_IE_PRBRSP_FLAG:
4218 mgmt_ie_buf = saved_ie->probe_res_ie;
4219 mgmt_ie_len = &saved_ie->probe_res_ie_len;
4220 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
4221 break;
4222 case BRCMF_VNDR_IE_BEACON_FLAG:
4223 mgmt_ie_buf = saved_ie->beacon_ie;
4224 mgmt_ie_len = &saved_ie->beacon_ie_len;
4225 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
4226 break;
4227 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
4228 mgmt_ie_buf = saved_ie->assoc_req_ie;
4229 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
4230 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
4231 break;
4232 default:
4233 err = -EPERM;
4234 brcmf_err("not suitable type\n");
4235 goto exit;
4236 }
4237
4238 if (vndr_ie_len > mgmt_ie_buf_len) {
4239 err = -ENOMEM;
4240 brcmf_err("extra IE size too big\n");
4241 goto exit;
4242 }
4243
4244 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
4245 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
4246 ptr = curr_ie_buf;
4247 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
4248 for (i = 0; i < new_vndr_ies.count; i++) {
4249 vndrie_info = &new_vndr_ies.ie_info[i];
4250 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
4251 vndrie_info->ie_len);
4252 parsed_ie_buf_len += vndrie_info->ie_len;
4253 }
4254 }
4255
4256 if (mgmt_ie_buf && *mgmt_ie_len) {
4257 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
4258 (memcmp(mgmt_ie_buf, curr_ie_buf,
4259 parsed_ie_buf_len) == 0)) {
4260 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
4261 goto exit;
4262 }
4263
4264 /* parse old vndr_ie */
4265 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
4266
4267 /* make a command to delete old ie */
4268 for (i = 0; i < old_vndr_ies.count; i++) {
4269 vndrie_info = &old_vndr_ies.ie_info[i];
4270
4271 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
4272 vndrie_info->vndrie.id,
4273 vndrie_info->vndrie.len,
4274 vndrie_info->vndrie.oui[0],
4275 vndrie_info->vndrie.oui[1],
4276 vndrie_info->vndrie.oui[2]);
4277
4278 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
4279 vndrie_info->ie_ptr,
4280 vndrie_info->ie_len,
4281 "del");
4282 curr_ie_buf += del_add_ie_buf_len;
4283 total_ie_buf_len += del_add_ie_buf_len;
4284 }
4285 }
4286
4287 *mgmt_ie_len = 0;
4288 /* Add if there is any extra IE */
4289 if (mgmt_ie_buf && parsed_ie_buf_len) {
4290 ptr = mgmt_ie_buf;
4291
4292 remained_buf_len = mgmt_ie_buf_len;
4293
4294 /* make a command to add new ie */
4295 for (i = 0; i < new_vndr_ies.count; i++) {
4296 vndrie_info = &new_vndr_ies.ie_info[i];
4297
4298 /* verify remained buf size before copy data */
4299 if (remained_buf_len < (vndrie_info->vndrie.len +
4300 VNDR_IE_VSIE_OFFSET)) {
4301 brcmf_err("no space in mgmt_ie_buf: len left %d",
4302 remained_buf_len);
4303 break;
4304 }
4305 remained_buf_len -= (vndrie_info->ie_len +
4306 VNDR_IE_VSIE_OFFSET);
4307
4308 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
4309 vndrie_info->vndrie.id,
4310 vndrie_info->vndrie.len,
4311 vndrie_info->vndrie.oui[0],
4312 vndrie_info->vndrie.oui[1],
4313 vndrie_info->vndrie.oui[2]);
4314
4315 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
4316 vndrie_info->ie_ptr,
4317 vndrie_info->ie_len,
4318 "add");
4319
4320 /* save the parsed IE in wl struct */
4321 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
4322 vndrie_info->ie_len);
4323 *mgmt_ie_len += vndrie_info->ie_len;
4324
4325 curr_ie_buf += del_add_ie_buf_len;
4326 total_ie_buf_len += del_add_ie_buf_len;
4327 }
4328 }
4329 if (total_ie_buf_len) {
4330 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
4331 total_ie_buf_len);
4332 if (err)
4333 brcmf_err("vndr ie set error : %d\n", err);
4334 }
4335
4336 exit:
4337 kfree(iovar_ie_buf);
4338 return err;
4339 }
4340
brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif * vif)4341 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
4342 {
4343 s32 pktflags[] = {
4344 BRCMF_VNDR_IE_PRBREQ_FLAG,
4345 BRCMF_VNDR_IE_PRBRSP_FLAG,
4346 BRCMF_VNDR_IE_BEACON_FLAG
4347 };
4348 int i;
4349
4350 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
4351 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
4352
4353 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
4354 return 0;
4355 }
4356
4357 static s32
brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif * vif,struct cfg80211_beacon_data * beacon)4358 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
4359 struct cfg80211_beacon_data *beacon)
4360 {
4361 s32 err;
4362
4363 /* Set Beacon IEs to FW */
4364 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
4365 beacon->tail, beacon->tail_len);
4366 if (err) {
4367 brcmf_err("Set Beacon IE Failed\n");
4368 return err;
4369 }
4370 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
4371
4372 /* Set Probe Response IEs to FW */
4373 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
4374 beacon->proberesp_ies,
4375 beacon->proberesp_ies_len);
4376 if (err)
4377 brcmf_err("Set Probe Resp IE Failed\n");
4378 else
4379 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
4380
4381 return err;
4382 }
4383
4384 static s32
brcmf_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_ap_settings * settings)4385 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
4386 struct cfg80211_ap_settings *settings)
4387 {
4388 s32 ie_offset;
4389 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4390 struct brcmf_if *ifp = netdev_priv(ndev);
4391 const struct brcmf_tlv *ssid_ie;
4392 const struct brcmf_tlv *country_ie;
4393 struct brcmf_ssid_le ssid_le;
4394 s32 err = -EPERM;
4395 const struct brcmf_tlv *rsn_ie;
4396 const struct brcmf_vs_tlv *wpa_ie;
4397 struct brcmf_join_params join_params;
4398 enum nl80211_iftype dev_role;
4399 struct brcmf_fil_bss_enable_le bss_enable;
4400 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
4401 bool mbss;
4402 int is_11d;
4403 bool supports_11d;
4404
4405 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
4406 settings->chandef.chan->hw_value,
4407 settings->chandef.center_freq1, settings->chandef.width,
4408 settings->beacon_interval, settings->dtim_period);
4409 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
4410 settings->ssid, settings->ssid_len, settings->auth_type,
4411 settings->inactivity_timeout);
4412 dev_role = ifp->vif->wdev.iftype;
4413 mbss = ifp->vif->mbss;
4414
4415 /* store current 11d setting */
4416 if (brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY,
4417 &ifp->vif->is_11d)) {
4418 is_11d = supports_11d = false;
4419 } else {
4420 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4421 settings->beacon.tail_len,
4422 WLAN_EID_COUNTRY);
4423 is_11d = country_ie ? 1 : 0;
4424 supports_11d = true;
4425 }
4426
4427 memset(&ssid_le, 0, sizeof(ssid_le));
4428 if (settings->ssid == NULL || settings->ssid_len == 0) {
4429 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
4430 ssid_ie = brcmf_parse_tlvs(
4431 (u8 *)&settings->beacon.head[ie_offset],
4432 settings->beacon.head_len - ie_offset,
4433 WLAN_EID_SSID);
4434 if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN)
4435 return -EINVAL;
4436
4437 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
4438 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4439 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4440 } else {
4441 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4442 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4443 }
4444
4445 if (!mbss) {
4446 brcmf_set_mpc(ifp, 0);
4447 brcmf_configure_arp_nd_offload(ifp, false);
4448 }
4449
4450 /* find the RSN_IE */
4451 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4452 settings->beacon.tail_len, WLAN_EID_RSN);
4453
4454 /* find the WPA_IE */
4455 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4456 settings->beacon.tail_len);
4457
4458 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4459 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4460 if (wpa_ie != NULL) {
4461 /* WPA IE */
4462 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4463 if (err < 0)
4464 goto exit;
4465 } else {
4466 struct brcmf_vs_tlv *tmp_ie;
4467
4468 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4469
4470 /* RSN IE */
4471 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4472 if (err < 0)
4473 goto exit;
4474 }
4475 } else {
4476 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4477 brcmf_configure_opensecurity(ifp);
4478 }
4479
4480 /* Parameters shared by all radio interfaces */
4481 if (!mbss) {
4482 if ((supports_11d) && (is_11d != ifp->vif->is_11d)) {
4483 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4484 is_11d);
4485 if (err < 0) {
4486 brcmf_err("Regulatory Set Error, %d\n", err);
4487 goto exit;
4488 }
4489 }
4490 if (settings->beacon_interval) {
4491 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4492 settings->beacon_interval);
4493 if (err < 0) {
4494 brcmf_err("Beacon Interval Set Error, %d\n",
4495 err);
4496 goto exit;
4497 }
4498 }
4499 if (settings->dtim_period) {
4500 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4501 settings->dtim_period);
4502 if (err < 0) {
4503 brcmf_err("DTIM Interval Set Error, %d\n", err);
4504 goto exit;
4505 }
4506 }
4507
4508 if ((dev_role == NL80211_IFTYPE_AP) &&
4509 ((ifp->ifidx == 0) ||
4510 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) {
4511 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4512 if (err < 0) {
4513 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4514 goto exit;
4515 }
4516 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4517 }
4518
4519 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4520 if (err < 0) {
4521 brcmf_err("SET INFRA error %d\n", err);
4522 goto exit;
4523 }
4524 } else if (WARN_ON(supports_11d && (is_11d != ifp->vif->is_11d))) {
4525 /* Multiple-BSS should use same 11d configuration */
4526 err = -EINVAL;
4527 goto exit;
4528 }
4529
4530 /* Interface specific setup */
4531 if (dev_role == NL80211_IFTYPE_AP) {
4532 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4533 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4534
4535 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4536 if (err < 0) {
4537 brcmf_err("setting AP mode failed %d\n", err);
4538 goto exit;
4539 }
4540 if (!mbss) {
4541 /* Firmware 10.x requires setting channel after enabling
4542 * AP and before bringing interface up.
4543 */
4544 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4545 if (err < 0) {
4546 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4547 chanspec, err);
4548 goto exit;
4549 }
4550 }
4551 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4552 if (err < 0) {
4553 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4554 goto exit;
4555 }
4556 /* On DOWN the firmware removes the WEP keys, reconfigure
4557 * them if they were set.
4558 */
4559 brcmf_cfg80211_reconfigure_wep(ifp);
4560
4561 memset(&join_params, 0, sizeof(join_params));
4562 /* join parameters starts with ssid */
4563 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4564 /* create softap */
4565 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4566 &join_params, sizeof(join_params));
4567 if (err < 0) {
4568 brcmf_err("SET SSID error (%d)\n", err);
4569 goto exit;
4570 }
4571
4572 if (settings->hidden_ssid) {
4573 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1);
4574 if (err) {
4575 brcmf_err("closednet error (%d)\n", err);
4576 goto exit;
4577 }
4578 }
4579
4580 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4581 } else if (dev_role == NL80211_IFTYPE_P2P_GO) {
4582 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4583 if (err < 0) {
4584 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4585 chanspec, err);
4586 goto exit;
4587 }
4588 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4589 sizeof(ssid_le));
4590 if (err < 0) {
4591 brcmf_err("setting ssid failed %d\n", err);
4592 goto exit;
4593 }
4594 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx);
4595 bss_enable.enable = cpu_to_le32(1);
4596 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4597 sizeof(bss_enable));
4598 if (err < 0) {
4599 brcmf_err("bss_enable config failed %d\n", err);
4600 goto exit;
4601 }
4602
4603 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4604 } else {
4605 WARN_ON(1);
4606 }
4607
4608 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4609 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4610 brcmf_net_setcarrier(ifp, true);
4611
4612 exit:
4613 if ((err) && (!mbss)) {
4614 brcmf_set_mpc(ifp, 1);
4615 brcmf_configure_arp_nd_offload(ifp, true);
4616 }
4617 return err;
4618 }
4619
brcmf_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * ndev)4620 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4621 {
4622 struct brcmf_if *ifp = netdev_priv(ndev);
4623 s32 err;
4624 struct brcmf_fil_bss_enable_le bss_enable;
4625 struct brcmf_join_params join_params;
4626
4627 brcmf_dbg(TRACE, "Enter\n");
4628
4629 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4630 /* Due to most likely deauths outstanding we sleep */
4631 /* first to make sure they get processed by fw. */
4632 msleep(400);
4633
4634 if (ifp->vif->mbss) {
4635 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4636 return err;
4637 }
4638
4639 /* First BSS doesn't get a full reset */
4640 if (ifp->bsscfgidx == 0)
4641 brcmf_fil_iovar_int_set(ifp, "closednet", 0);
4642
4643 memset(&join_params, 0, sizeof(join_params));
4644 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4645 &join_params, sizeof(join_params));
4646 if (err < 0)
4647 brcmf_err("SET SSID error (%d)\n", err);
4648 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4649 if (err < 0)
4650 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4651 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4652 if (err < 0)
4653 brcmf_err("setting AP mode failed %d\n", err);
4654 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4655 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4656 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4657 ifp->vif->is_11d);
4658 /* Bring device back up so it can be used again */
4659 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4660 if (err < 0)
4661 brcmf_err("BRCMF_C_UP error %d\n", err);
4662
4663 brcmf_vif_clear_mgmt_ies(ifp->vif);
4664 } else {
4665 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx);
4666 bss_enable.enable = cpu_to_le32(0);
4667 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4668 sizeof(bss_enable));
4669 if (err < 0)
4670 brcmf_err("bss_enable config failed %d\n", err);
4671 }
4672 brcmf_set_mpc(ifp, 1);
4673 brcmf_configure_arp_nd_offload(ifp, true);
4674 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4675 brcmf_net_setcarrier(ifp, false);
4676
4677 return err;
4678 }
4679
4680 static s32
brcmf_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_beacon_data * info)4681 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4682 struct cfg80211_beacon_data *info)
4683 {
4684 struct brcmf_if *ifp = netdev_priv(ndev);
4685 s32 err;
4686
4687 brcmf_dbg(TRACE, "Enter\n");
4688
4689 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4690
4691 return err;
4692 }
4693
4694 static int
brcmf_cfg80211_del_station(struct wiphy * wiphy,struct net_device * ndev,struct station_del_parameters * params)4695 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4696 struct station_del_parameters *params)
4697 {
4698 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4699 struct brcmf_scb_val_le scbval;
4700 struct brcmf_if *ifp = netdev_priv(ndev);
4701 s32 err;
4702
4703 if (!params->mac)
4704 return -EFAULT;
4705
4706 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4707
4708 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4709 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4710 if (!check_vif_up(ifp->vif))
4711 return -EIO;
4712
4713 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4714 scbval.val = cpu_to_le32(params->reason_code);
4715 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4716 &scbval, sizeof(scbval));
4717 if (err)
4718 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4719
4720 brcmf_dbg(TRACE, "Exit\n");
4721 return err;
4722 }
4723
4724 static int
brcmf_cfg80211_change_station(struct wiphy * wiphy,struct net_device * ndev,const u8 * mac,struct station_parameters * params)4725 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev,
4726 const u8 *mac, struct station_parameters *params)
4727 {
4728 struct brcmf_if *ifp = netdev_priv(ndev);
4729 s32 err;
4730
4731 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac,
4732 params->sta_flags_mask, params->sta_flags_set);
4733
4734 /* Ignore all 00 MAC */
4735 if (is_zero_ether_addr(mac))
4736 return 0;
4737
4738 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4739 return 0;
4740
4741 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4742 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE,
4743 (void *)mac, ETH_ALEN);
4744 else
4745 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE,
4746 (void *)mac, ETH_ALEN);
4747 if (err < 0)
4748 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err);
4749
4750 return err;
4751 }
4752
4753 static void
brcmf_cfg80211_mgmt_frame_register(struct wiphy * wiphy,struct wireless_dev * wdev,u16 frame_type,bool reg)4754 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4755 struct wireless_dev *wdev,
4756 u16 frame_type, bool reg)
4757 {
4758 struct brcmf_cfg80211_vif *vif;
4759 u16 mgmt_type;
4760
4761 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4762
4763 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4764 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4765 if (reg)
4766 vif->mgmt_rx_reg |= BIT(mgmt_type);
4767 else
4768 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4769 }
4770
4771
4772 static int
brcmf_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)4773 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4774 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4775 {
4776 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4777 struct ieee80211_channel *chan = params->chan;
4778 const u8 *buf = params->buf;
4779 size_t len = params->len;
4780 const struct ieee80211_mgmt *mgmt;
4781 struct brcmf_cfg80211_vif *vif;
4782 s32 err = 0;
4783 s32 ie_offset;
4784 s32 ie_len;
4785 struct brcmf_fil_action_frame_le *action_frame;
4786 struct brcmf_fil_af_params_le *af_params;
4787 bool ack;
4788 s32 chan_nr;
4789 u32 freq;
4790
4791 brcmf_dbg(TRACE, "Enter\n");
4792
4793 *cookie = 0;
4794
4795 mgmt = (const struct ieee80211_mgmt *)buf;
4796
4797 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4798 brcmf_err("Driver only allows MGMT packet type\n");
4799 return -EPERM;
4800 }
4801
4802 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4803
4804 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4805 /* Right now the only reason to get a probe response */
4806 /* is for p2p listen response or for p2p GO from */
4807 /* wpa_supplicant. Unfortunately the probe is send */
4808 /* on primary ndev, while dongle wants it on the p2p */
4809 /* vif. Since this is only reason for a probe */
4810 /* response to be sent, the vif is taken from cfg. */
4811 /* If ever desired to send proberesp for non p2p */
4812 /* response then data should be checked for */
4813 /* "DIRECT-". Note in future supplicant will take */
4814 /* dedicated p2p wdev to do this and then this 'hack'*/
4815 /* is not needed anymore. */
4816 ie_offset = DOT11_MGMT_HDR_LEN +
4817 DOT11_BCN_PRB_FIXED_LEN;
4818 ie_len = len - ie_offset;
4819 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4820 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4821 err = brcmf_vif_set_mgmt_ie(vif,
4822 BRCMF_VNDR_IE_PRBRSP_FLAG,
4823 &buf[ie_offset],
4824 ie_len);
4825 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4826 GFP_KERNEL);
4827 } else if (ieee80211_is_action(mgmt->frame_control)) {
4828 if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) {
4829 brcmf_err("invalid action frame length\n");
4830 err = -EINVAL;
4831 goto exit;
4832 }
4833 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4834 if (af_params == NULL) {
4835 brcmf_err("unable to allocate frame\n");
4836 err = -ENOMEM;
4837 goto exit;
4838 }
4839 action_frame = &af_params->action_frame;
4840 /* Add the packet Id */
4841 action_frame->packet_id = cpu_to_le32(*cookie);
4842 /* Add BSSID */
4843 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4844 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4845 /* Add the length exepted for 802.11 header */
4846 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4847 /* Add the channel. Use the one specified as parameter if any or
4848 * the current one (got from the firmware) otherwise
4849 */
4850 if (chan)
4851 freq = chan->center_freq;
4852 else
4853 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4854 &freq);
4855 chan_nr = ieee80211_frequency_to_channel(freq);
4856 af_params->channel = cpu_to_le32(chan_nr);
4857
4858 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4859 le16_to_cpu(action_frame->len));
4860
4861 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4862 *cookie, le16_to_cpu(action_frame->len), freq);
4863
4864 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4865 af_params);
4866
4867 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4868 GFP_KERNEL);
4869 kfree(af_params);
4870 } else {
4871 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4872 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%zu\n", len);
4873 }
4874
4875 exit:
4876 return err;
4877 }
4878
4879
4880 static int
brcmf_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)4881 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4882 struct wireless_dev *wdev,
4883 u64 cookie)
4884 {
4885 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4886 struct brcmf_cfg80211_vif *vif;
4887 int err = 0;
4888
4889 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4890
4891 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4892 if (vif == NULL) {
4893 brcmf_err("No p2p device available for probe response\n");
4894 err = -ENODEV;
4895 goto exit;
4896 }
4897 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4898 exit:
4899 return err;
4900 }
4901
brcmf_cfg80211_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)4902 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy,
4903 struct wireless_dev *wdev,
4904 struct cfg80211_chan_def *chandef)
4905 {
4906 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4907 struct net_device *ndev = wdev->netdev;
4908 struct brcmf_if *ifp;
4909 struct brcmu_chan ch;
4910 enum nl80211_band band = 0;
4911 enum nl80211_chan_width width = 0;
4912 u32 chanspec;
4913 int freq, err;
4914
4915 if (!ndev)
4916 return -ENODEV;
4917 ifp = netdev_priv(ndev);
4918
4919 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec);
4920 if (err) {
4921 brcmf_err("chanspec failed (%d)\n", err);
4922 return err;
4923 }
4924
4925 ch.chspec = chanspec;
4926 cfg->d11inf.decchspec(&ch);
4927
4928 switch (ch.band) {
4929 case BRCMU_CHAN_BAND_2G:
4930 band = NL80211_BAND_2GHZ;
4931 break;
4932 case BRCMU_CHAN_BAND_5G:
4933 band = NL80211_BAND_5GHZ;
4934 break;
4935 }
4936
4937 switch (ch.bw) {
4938 case BRCMU_CHAN_BW_80:
4939 width = NL80211_CHAN_WIDTH_80;
4940 break;
4941 case BRCMU_CHAN_BW_40:
4942 width = NL80211_CHAN_WIDTH_40;
4943 break;
4944 case BRCMU_CHAN_BW_20:
4945 width = NL80211_CHAN_WIDTH_20;
4946 break;
4947 case BRCMU_CHAN_BW_80P80:
4948 width = NL80211_CHAN_WIDTH_80P80;
4949 break;
4950 case BRCMU_CHAN_BW_160:
4951 width = NL80211_CHAN_WIDTH_160;
4952 break;
4953 }
4954
4955 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band);
4956 chandef->chan = ieee80211_get_channel(wiphy, freq);
4957 chandef->width = width;
4958 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band);
4959 chandef->center_freq2 = 0;
4960
4961 return 0;
4962 }
4963
brcmf_cfg80211_crit_proto_start(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_crit_proto_id proto,u16 duration)4964 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4965 struct wireless_dev *wdev,
4966 enum nl80211_crit_proto_id proto,
4967 u16 duration)
4968 {
4969 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4970 struct brcmf_cfg80211_vif *vif;
4971
4972 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4973
4974 /* only DHCP support for now */
4975 if (proto != NL80211_CRIT_PROTO_DHCP)
4976 return -EINVAL;
4977
4978 /* suppress and abort scanning */
4979 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4980 brcmf_abort_scanning(cfg);
4981
4982 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4983 }
4984
brcmf_cfg80211_crit_proto_stop(struct wiphy * wiphy,struct wireless_dev * wdev)4985 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4986 struct wireless_dev *wdev)
4987 {
4988 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4989 struct brcmf_cfg80211_vif *vif;
4990
4991 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4992
4993 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4994 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4995 }
4996
4997 static s32
brcmf_notify_tdls_peer_event(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4998 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4999 const struct brcmf_event_msg *e, void *data)
5000 {
5001 switch (e->reason) {
5002 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
5003 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
5004 break;
5005 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
5006 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
5007 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5008 break;
5009 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
5010 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
5011 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5012 break;
5013 }
5014
5015 return 0;
5016 }
5017
brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)5018 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
5019 {
5020 int ret;
5021
5022 switch (oper) {
5023 case NL80211_TDLS_DISCOVERY_REQ:
5024 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
5025 break;
5026 case NL80211_TDLS_SETUP:
5027 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
5028 break;
5029 case NL80211_TDLS_TEARDOWN:
5030 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
5031 break;
5032 default:
5033 brcmf_err("unsupported operation: %d\n", oper);
5034 ret = -EOPNOTSUPP;
5035 }
5036 return ret;
5037 }
5038
brcmf_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * ndev,const u8 * peer,enum nl80211_tdls_operation oper)5039 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
5040 struct net_device *ndev, const u8 *peer,
5041 enum nl80211_tdls_operation oper)
5042 {
5043 struct brcmf_if *ifp;
5044 struct brcmf_tdls_iovar_le info;
5045 int ret = 0;
5046
5047 ret = brcmf_convert_nl80211_tdls_oper(oper);
5048 if (ret < 0)
5049 return ret;
5050
5051 ifp = netdev_priv(ndev);
5052 memset(&info, 0, sizeof(info));
5053 info.mode = (u8)ret;
5054 if (peer)
5055 memcpy(info.ea, peer, ETH_ALEN);
5056
5057 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
5058 &info, sizeof(info));
5059 if (ret < 0)
5060 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
5061
5062 return ret;
5063 }
5064
5065 static int
brcmf_cfg80211_update_conn_params(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_connect_params * sme,u32 changed)5066 brcmf_cfg80211_update_conn_params(struct wiphy *wiphy,
5067 struct net_device *ndev,
5068 struct cfg80211_connect_params *sme,
5069 u32 changed)
5070 {
5071 struct brcmf_if *ifp;
5072 int err;
5073
5074 if (!(changed & UPDATE_ASSOC_IES))
5075 return 0;
5076
5077 ifp = netdev_priv(ndev);
5078 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
5079 sme->ie, sme->ie_len);
5080 if (err)
5081 brcmf_err("Set Assoc REQ IE Failed\n");
5082 else
5083 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
5084
5085 return err;
5086 }
5087
5088 #ifdef CONFIG_PM
5089 static int
brcmf_cfg80211_set_rekey_data(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_gtk_rekey_data * gtk)5090 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev,
5091 struct cfg80211_gtk_rekey_data *gtk)
5092 {
5093 struct brcmf_if *ifp = netdev_priv(ndev);
5094 struct brcmf_gtk_keyinfo_le gtk_le;
5095 int ret;
5096
5097 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx);
5098
5099 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck));
5100 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek));
5101 memcpy(gtk_le.replay_counter, gtk->replay_ctr,
5102 sizeof(gtk_le.replay_counter));
5103
5104 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", >k_le,
5105 sizeof(gtk_le));
5106 if (ret < 0)
5107 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret);
5108
5109 return ret;
5110 }
5111 #endif
5112
brcmf_cfg80211_set_pmk(struct wiphy * wiphy,struct net_device * dev,const struct cfg80211_pmk_conf * conf)5113 static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev,
5114 const struct cfg80211_pmk_conf *conf)
5115 {
5116 struct brcmf_if *ifp;
5117
5118 brcmf_dbg(TRACE, "enter\n");
5119
5120 /* expect using firmware supplicant for 1X */
5121 ifp = netdev_priv(dev);
5122 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X))
5123 return -EINVAL;
5124
5125 if (conf->pmk_len > BRCMF_WSEC_MAX_PSK_LEN)
5126 return -ERANGE;
5127
5128 return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len);
5129 }
5130
brcmf_cfg80211_del_pmk(struct wiphy * wiphy,struct net_device * dev,const u8 * aa)5131 static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev,
5132 const u8 *aa)
5133 {
5134 struct brcmf_if *ifp;
5135
5136 brcmf_dbg(TRACE, "enter\n");
5137 ifp = netdev_priv(dev);
5138 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X))
5139 return -EINVAL;
5140
5141 return brcmf_set_pmk(ifp, NULL, 0);
5142 }
5143
5144 static struct cfg80211_ops brcmf_cfg80211_ops = {
5145 .add_virtual_intf = brcmf_cfg80211_add_iface,
5146 .del_virtual_intf = brcmf_cfg80211_del_iface,
5147 .change_virtual_intf = brcmf_cfg80211_change_iface,
5148 .scan = brcmf_cfg80211_scan,
5149 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
5150 .join_ibss = brcmf_cfg80211_join_ibss,
5151 .leave_ibss = brcmf_cfg80211_leave_ibss,
5152 .get_station = brcmf_cfg80211_get_station,
5153 .dump_station = brcmf_cfg80211_dump_station,
5154 .set_tx_power = brcmf_cfg80211_set_tx_power,
5155 .get_tx_power = brcmf_cfg80211_get_tx_power,
5156 .add_key = brcmf_cfg80211_add_key,
5157 .del_key = brcmf_cfg80211_del_key,
5158 .get_key = brcmf_cfg80211_get_key,
5159 .set_default_key = brcmf_cfg80211_config_default_key,
5160 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
5161 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
5162 .connect = brcmf_cfg80211_connect,
5163 .disconnect = brcmf_cfg80211_disconnect,
5164 .suspend = brcmf_cfg80211_suspend,
5165 .resume = brcmf_cfg80211_resume,
5166 .set_pmksa = brcmf_cfg80211_set_pmksa,
5167 .del_pmksa = brcmf_cfg80211_del_pmksa,
5168 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
5169 .start_ap = brcmf_cfg80211_start_ap,
5170 .stop_ap = brcmf_cfg80211_stop_ap,
5171 .change_beacon = brcmf_cfg80211_change_beacon,
5172 .del_station = brcmf_cfg80211_del_station,
5173 .change_station = brcmf_cfg80211_change_station,
5174 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
5175 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
5176 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
5177 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
5178 .remain_on_channel = brcmf_p2p_remain_on_channel,
5179 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
5180 .get_channel = brcmf_cfg80211_get_channel,
5181 .start_p2p_device = brcmf_p2p_start_device,
5182 .stop_p2p_device = brcmf_p2p_stop_device,
5183 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
5184 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
5185 .tdls_oper = brcmf_cfg80211_tdls_oper,
5186 .update_connect_params = brcmf_cfg80211_update_conn_params,
5187 .set_pmk = brcmf_cfg80211_set_pmk,
5188 .del_pmk = brcmf_cfg80211_del_pmk,
5189 };
5190
brcmf_cfg80211_get_ops(void)5191 struct cfg80211_ops *brcmf_cfg80211_get_ops(void)
5192 {
5193 return kmemdup(&brcmf_cfg80211_ops, sizeof(brcmf_cfg80211_ops),
5194 GFP_KERNEL);
5195 }
5196
brcmf_alloc_vif(struct brcmf_cfg80211_info * cfg,enum nl80211_iftype type)5197 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
5198 enum nl80211_iftype type)
5199 {
5200 struct brcmf_cfg80211_vif *vif_walk;
5201 struct brcmf_cfg80211_vif *vif;
5202 bool mbss;
5203
5204 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
5205 sizeof(*vif));
5206 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
5207 if (!vif)
5208 return ERR_PTR(-ENOMEM);
5209
5210 vif->wdev.wiphy = cfg->wiphy;
5211 vif->wdev.iftype = type;
5212
5213 brcmf_init_prof(&vif->profile);
5214
5215 if (type == NL80211_IFTYPE_AP) {
5216 mbss = false;
5217 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
5218 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
5219 mbss = true;
5220 break;
5221 }
5222 }
5223 vif->mbss = mbss;
5224 }
5225
5226 list_add_tail(&vif->list, &cfg->vif_list);
5227 return vif;
5228 }
5229
brcmf_free_vif(struct brcmf_cfg80211_vif * vif)5230 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
5231 {
5232 list_del(&vif->list);
5233 kfree(vif);
5234 }
5235
brcmf_cfg80211_free_netdev(struct net_device * ndev)5236 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
5237 {
5238 struct brcmf_cfg80211_vif *vif;
5239 struct brcmf_if *ifp;
5240
5241 ifp = netdev_priv(ndev);
5242 vif = ifp->vif;
5243
5244 if (vif)
5245 brcmf_free_vif(vif);
5246 }
5247
brcmf_is_linkup(struct brcmf_cfg80211_vif * vif,const struct brcmf_event_msg * e)5248 static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif,
5249 const struct brcmf_event_msg *e)
5250 {
5251 u32 event = e->event_code;
5252 u32 status = e->status;
5253
5254 if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK &&
5255 event == BRCMF_E_PSK_SUP &&
5256 status == BRCMF_E_STATUS_FWSUP_COMPLETED)
5257 set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
5258 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
5259 brcmf_dbg(CONN, "Processing set ssid\n");
5260 memcpy(vif->profile.bssid, e->addr, ETH_ALEN);
5261 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK)
5262 return true;
5263
5264 set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
5265 }
5266
5267 if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) &&
5268 test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) {
5269 clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
5270 clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
5271 return true;
5272 }
5273 return false;
5274 }
5275
brcmf_is_linkdown(const struct brcmf_event_msg * e)5276 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
5277 {
5278 u32 event = e->event_code;
5279 u16 flags = e->flags;
5280
5281 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
5282 (event == BRCMF_E_DISASSOC_IND) ||
5283 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
5284 brcmf_dbg(CONN, "Processing link down\n");
5285 return true;
5286 }
5287 return false;
5288 }
5289
brcmf_is_nonetwork(struct brcmf_cfg80211_info * cfg,const struct brcmf_event_msg * e)5290 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
5291 const struct brcmf_event_msg *e)
5292 {
5293 u32 event = e->event_code;
5294 u32 status = e->status;
5295
5296 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
5297 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
5298 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
5299 return true;
5300 }
5301
5302 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
5303 brcmf_dbg(CONN, "Processing connecting & no network found\n");
5304 return true;
5305 }
5306
5307 if (event == BRCMF_E_PSK_SUP &&
5308 status != BRCMF_E_STATUS_FWSUP_COMPLETED) {
5309 brcmf_dbg(CONN, "Processing failed supplicant state: %u\n",
5310 status);
5311 return true;
5312 }
5313
5314 return false;
5315 }
5316
brcmf_clear_assoc_ies(struct brcmf_cfg80211_info * cfg)5317 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
5318 {
5319 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5320
5321 kfree(conn_info->req_ie);
5322 conn_info->req_ie = NULL;
5323 conn_info->req_ie_len = 0;
5324 kfree(conn_info->resp_ie);
5325 conn_info->resp_ie = NULL;
5326 conn_info->resp_ie_len = 0;
5327 }
5328
brcmf_get_assoc_ies(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp)5329 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
5330 struct brcmf_if *ifp)
5331 {
5332 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
5333 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5334 u32 req_len;
5335 u32 resp_len;
5336 s32 err = 0;
5337
5338 brcmf_clear_assoc_ies(cfg);
5339
5340 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
5341 cfg->extra_buf, WL_ASSOC_INFO_MAX);
5342 if (err) {
5343 brcmf_err("could not get assoc info (%d)\n", err);
5344 return err;
5345 }
5346 assoc_info =
5347 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
5348 req_len = le32_to_cpu(assoc_info->req_len);
5349 resp_len = le32_to_cpu(assoc_info->resp_len);
5350 if (req_len) {
5351 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
5352 cfg->extra_buf,
5353 WL_ASSOC_INFO_MAX);
5354 if (err) {
5355 brcmf_err("could not get assoc req (%d)\n", err);
5356 return err;
5357 }
5358 conn_info->req_ie_len = req_len;
5359 conn_info->req_ie =
5360 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
5361 GFP_KERNEL);
5362 } else {
5363 conn_info->req_ie_len = 0;
5364 conn_info->req_ie = NULL;
5365 }
5366 if (resp_len) {
5367 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
5368 cfg->extra_buf,
5369 WL_ASSOC_INFO_MAX);
5370 if (err) {
5371 brcmf_err("could not get assoc resp (%d)\n", err);
5372 return err;
5373 }
5374 conn_info->resp_ie_len = resp_len;
5375 conn_info->resp_ie =
5376 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
5377 GFP_KERNEL);
5378 } else {
5379 conn_info->resp_ie_len = 0;
5380 conn_info->resp_ie = NULL;
5381 }
5382 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
5383 conn_info->req_ie_len, conn_info->resp_ie_len);
5384
5385 return err;
5386 }
5387
5388 static s32
brcmf_bss_roaming_done(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e)5389 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
5390 struct net_device *ndev,
5391 const struct brcmf_event_msg *e)
5392 {
5393 struct brcmf_if *ifp = netdev_priv(ndev);
5394 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5395 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5396 struct wiphy *wiphy = cfg_to_wiphy(cfg);
5397 struct ieee80211_channel *notify_channel = NULL;
5398 struct ieee80211_supported_band *band;
5399 struct brcmf_bss_info_le *bi;
5400 struct brcmu_chan ch;
5401 struct cfg80211_roam_info roam_info = {};
5402 u32 freq;
5403 s32 err = 0;
5404 u8 *buf;
5405
5406 brcmf_dbg(TRACE, "Enter\n");
5407
5408 brcmf_get_assoc_ies(cfg, ifp);
5409 memcpy(profile->bssid, e->addr, ETH_ALEN);
5410 brcmf_update_bss_info(cfg, ifp);
5411
5412 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
5413 if (buf == NULL) {
5414 err = -ENOMEM;
5415 goto done;
5416 }
5417
5418 /* data sent to dongle has to be little endian */
5419 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
5420 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
5421 buf, WL_BSS_INFO_MAX);
5422
5423 if (err)
5424 goto done;
5425
5426 bi = (struct brcmf_bss_info_le *)(buf + 4);
5427 ch.chspec = le16_to_cpu(bi->chanspec);
5428 cfg->d11inf.decchspec(&ch);
5429
5430 if (ch.band == BRCMU_CHAN_BAND_2G)
5431 band = wiphy->bands[NL80211_BAND_2GHZ];
5432 else
5433 band = wiphy->bands[NL80211_BAND_5GHZ];
5434
5435 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band);
5436 notify_channel = ieee80211_get_channel(wiphy, freq);
5437
5438 done:
5439 kfree(buf);
5440
5441 roam_info.channel = notify_channel;
5442 roam_info.bssid = profile->bssid;
5443 roam_info.req_ie = conn_info->req_ie;
5444 roam_info.req_ie_len = conn_info->req_ie_len;
5445 roam_info.resp_ie = conn_info->resp_ie;
5446 roam_info.resp_ie_len = conn_info->resp_ie_len;
5447
5448 cfg80211_roamed(ndev, &roam_info, GFP_KERNEL);
5449 brcmf_dbg(CONN, "Report roaming result\n");
5450
5451 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
5452 brcmf_dbg(TRACE, "Exit\n");
5453 return err;
5454 }
5455
5456 static s32
brcmf_bss_connect_done(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e,bool completed)5457 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
5458 struct net_device *ndev, const struct brcmf_event_msg *e,
5459 bool completed)
5460 {
5461 struct brcmf_if *ifp = netdev_priv(ndev);
5462 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5463 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
5464 struct cfg80211_connect_resp_params conn_params;
5465
5466 brcmf_dbg(TRACE, "Enter\n");
5467
5468 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5469 &ifp->vif->sme_state)) {
5470 memset(&conn_params, 0, sizeof(conn_params));
5471 if (completed) {
5472 brcmf_get_assoc_ies(cfg, ifp);
5473 brcmf_update_bss_info(cfg, ifp);
5474 set_bit(BRCMF_VIF_STATUS_CONNECTED,
5475 &ifp->vif->sme_state);
5476 conn_params.status = WLAN_STATUS_SUCCESS;
5477 } else {
5478 conn_params.status = WLAN_STATUS_AUTH_TIMEOUT;
5479 }
5480 conn_params.bssid = profile->bssid;
5481 conn_params.req_ie = conn_info->req_ie;
5482 conn_params.req_ie_len = conn_info->req_ie_len;
5483 conn_params.resp_ie = conn_info->resp_ie;
5484 conn_params.resp_ie_len = conn_info->resp_ie_len;
5485 cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL);
5486 brcmf_dbg(CONN, "Report connect result - connection %s\n",
5487 completed ? "succeeded" : "failed");
5488 }
5489 brcmf_dbg(TRACE, "Exit\n");
5490 return 0;
5491 }
5492
5493 static s32
brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e,void * data)5494 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
5495 struct net_device *ndev,
5496 const struct brcmf_event_msg *e, void *data)
5497 {
5498 static int generation;
5499 u32 event = e->event_code;
5500 u32 reason = e->reason;
5501 struct station_info *sinfo;
5502
5503 brcmf_dbg(CONN, "event %s (%u), reason %d\n",
5504 brcmf_fweh_event_name(event), event, reason);
5505 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
5506 ndev != cfg_to_ndev(cfg)) {
5507 brcmf_dbg(CONN, "AP mode link down\n");
5508 complete(&cfg->vif_disabled);
5509 return 0;
5510 }
5511
5512 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
5513 (reason == BRCMF_E_STATUS_SUCCESS)) {
5514 if (!data) {
5515 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
5516 return -EINVAL;
5517 }
5518
5519 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
5520 if (!sinfo)
5521 return -ENOMEM;
5522
5523 sinfo->assoc_req_ies = data;
5524 sinfo->assoc_req_ies_len = e->datalen;
5525 generation++;
5526 sinfo->generation = generation;
5527 cfg80211_new_sta(ndev, e->addr, sinfo, GFP_KERNEL);
5528
5529 kfree(sinfo);
5530 } else if ((event == BRCMF_E_DISASSOC_IND) ||
5531 (event == BRCMF_E_DEAUTH_IND) ||
5532 (event == BRCMF_E_DEAUTH)) {
5533 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
5534 }
5535 return 0;
5536 }
5537
5538 static s32
brcmf_notify_connect_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)5539 brcmf_notify_connect_status(struct brcmf_if *ifp,
5540 const struct brcmf_event_msg *e, void *data)
5541 {
5542 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5543 struct net_device *ndev = ifp->ndev;
5544 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
5545 struct ieee80211_channel *chan;
5546 s32 err = 0;
5547
5548 if ((e->event_code == BRCMF_E_DEAUTH) ||
5549 (e->event_code == BRCMF_E_DEAUTH_IND) ||
5550 (e->event_code == BRCMF_E_DISASSOC_IND) ||
5551 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
5552 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
5553 }
5554
5555 if (brcmf_is_apmode(ifp->vif)) {
5556 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
5557 } else if (brcmf_is_linkup(ifp->vif, e)) {
5558 brcmf_dbg(CONN, "Linkup\n");
5559 if (brcmf_is_ibssmode(ifp->vif)) {
5560 brcmf_inform_ibss(cfg, ndev, e->addr);
5561 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
5562 memcpy(profile->bssid, e->addr, ETH_ALEN);
5563 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
5564 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5565 &ifp->vif->sme_state);
5566 set_bit(BRCMF_VIF_STATUS_CONNECTED,
5567 &ifp->vif->sme_state);
5568 } else
5569 brcmf_bss_connect_done(cfg, ndev, e, true);
5570 brcmf_net_setcarrier(ifp, true);
5571 } else if (brcmf_is_linkdown(e)) {
5572 brcmf_dbg(CONN, "Linkdown\n");
5573 if (!brcmf_is_ibssmode(ifp->vif)) {
5574 brcmf_bss_connect_done(cfg, ndev, e, false);
5575 brcmf_link_down(ifp->vif,
5576 brcmf_map_fw_linkdown_reason(e));
5577 brcmf_init_prof(ndev_to_prof(ndev));
5578 if (ndev != cfg_to_ndev(cfg))
5579 complete(&cfg->vif_disabled);
5580 brcmf_net_setcarrier(ifp, false);
5581 }
5582 } else if (brcmf_is_nonetwork(cfg, e)) {
5583 if (brcmf_is_ibssmode(ifp->vif))
5584 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
5585 &ifp->vif->sme_state);
5586 else
5587 brcmf_bss_connect_done(cfg, ndev, e, false);
5588 }
5589
5590 return err;
5591 }
5592
5593 static s32
brcmf_notify_roaming_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)5594 brcmf_notify_roaming_status(struct brcmf_if *ifp,
5595 const struct brcmf_event_msg *e, void *data)
5596 {
5597 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5598 u32 event = e->event_code;
5599 u32 status = e->status;
5600
5601 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
5602 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
5603 &ifp->vif->sme_state)) {
5604 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
5605 } else {
5606 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
5607 brcmf_net_setcarrier(ifp, true);
5608 }
5609 }
5610
5611 return 0;
5612 }
5613
5614 static s32
brcmf_notify_mic_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)5615 brcmf_notify_mic_status(struct brcmf_if *ifp,
5616 const struct brcmf_event_msg *e, void *data)
5617 {
5618 u16 flags = e->flags;
5619 enum nl80211_key_type key_type;
5620
5621 if (flags & BRCMF_EVENT_MSG_GROUP)
5622 key_type = NL80211_KEYTYPE_GROUP;
5623 else
5624 key_type = NL80211_KEYTYPE_PAIRWISE;
5625
5626 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
5627 NULL, GFP_KERNEL);
5628
5629 return 0;
5630 }
5631
brcmf_notify_vif_event(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)5632 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
5633 const struct brcmf_event_msg *e, void *data)
5634 {
5635 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5636 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
5637 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5638 struct brcmf_cfg80211_vif *vif;
5639
5640 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n",
5641 ifevent->action, ifevent->flags, ifevent->ifidx,
5642 ifevent->bsscfgidx);
5643
5644 spin_lock(&event->vif_event_lock);
5645 event->action = ifevent->action;
5646 vif = event->vif;
5647
5648 switch (ifevent->action) {
5649 case BRCMF_E_IF_ADD:
5650 /* waiting process may have timed out */
5651 if (!cfg->vif_event.vif) {
5652 spin_unlock(&event->vif_event_lock);
5653 return -EBADF;
5654 }
5655
5656 ifp->vif = vif;
5657 vif->ifp = ifp;
5658 if (ifp->ndev) {
5659 vif->wdev.netdev = ifp->ndev;
5660 ifp->ndev->ieee80211_ptr = &vif->wdev;
5661 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
5662 }
5663 spin_unlock(&event->vif_event_lock);
5664 wake_up(&event->vif_wq);
5665 return 0;
5666
5667 case BRCMF_E_IF_DEL:
5668 spin_unlock(&event->vif_event_lock);
5669 /* event may not be upon user request */
5670 if (brcmf_cfg80211_vif_event_armed(cfg))
5671 wake_up(&event->vif_wq);
5672 return 0;
5673
5674 case BRCMF_E_IF_CHANGE:
5675 spin_unlock(&event->vif_event_lock);
5676 wake_up(&event->vif_wq);
5677 return 0;
5678
5679 default:
5680 spin_unlock(&event->vif_event_lock);
5681 break;
5682 }
5683 return -EINVAL;
5684 }
5685
brcmf_init_conf(struct brcmf_cfg80211_conf * conf)5686 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
5687 {
5688 conf->frag_threshold = (u32)-1;
5689 conf->rts_threshold = (u32)-1;
5690 conf->retry_short = (u32)-1;
5691 conf->retry_long = (u32)-1;
5692 }
5693
brcmf_register_event_handlers(struct brcmf_cfg80211_info * cfg)5694 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
5695 {
5696 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
5697 brcmf_notify_connect_status);
5698 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
5699 brcmf_notify_connect_status);
5700 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5701 brcmf_notify_connect_status);
5702 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5703 brcmf_notify_connect_status);
5704 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5705 brcmf_notify_connect_status);
5706 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5707 brcmf_notify_connect_status);
5708 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5709 brcmf_notify_roaming_status);
5710 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5711 brcmf_notify_mic_status);
5712 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5713 brcmf_notify_connect_status);
5714 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5715 brcmf_notify_sched_scan_results);
5716 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5717 brcmf_notify_vif_event);
5718 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5719 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5720 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5721 brcmf_p2p_notify_listen_complete);
5722 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5723 brcmf_p2p_notify_action_frame_rx);
5724 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5725 brcmf_p2p_notify_action_tx_complete);
5726 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5727 brcmf_p2p_notify_action_tx_complete);
5728 brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP,
5729 brcmf_notify_connect_status);
5730 }
5731
brcmf_deinit_priv_mem(struct brcmf_cfg80211_info * cfg)5732 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5733 {
5734 kfree(cfg->conf);
5735 cfg->conf = NULL;
5736 kfree(cfg->extra_buf);
5737 cfg->extra_buf = NULL;
5738 kfree(cfg->wowl.nd);
5739 cfg->wowl.nd = NULL;
5740 kfree(cfg->wowl.nd_info);
5741 cfg->wowl.nd_info = NULL;
5742 kfree(cfg->escan_info.escan_buf);
5743 cfg->escan_info.escan_buf = NULL;
5744 }
5745
brcmf_init_priv_mem(struct brcmf_cfg80211_info * cfg)5746 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5747 {
5748 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5749 if (!cfg->conf)
5750 goto init_priv_mem_out;
5751 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5752 if (!cfg->extra_buf)
5753 goto init_priv_mem_out;
5754 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL);
5755 if (!cfg->wowl.nd)
5756 goto init_priv_mem_out;
5757 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) +
5758 sizeof(struct cfg80211_wowlan_nd_match *),
5759 GFP_KERNEL);
5760 if (!cfg->wowl.nd_info)
5761 goto init_priv_mem_out;
5762 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL);
5763 if (!cfg->escan_info.escan_buf)
5764 goto init_priv_mem_out;
5765
5766 return 0;
5767
5768 init_priv_mem_out:
5769 brcmf_deinit_priv_mem(cfg);
5770
5771 return -ENOMEM;
5772 }
5773
wl_init_priv(struct brcmf_cfg80211_info * cfg)5774 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5775 {
5776 s32 err = 0;
5777
5778 cfg->scan_request = NULL;
5779 cfg->pwr_save = true;
5780 cfg->dongle_up = false; /* dongle is not up yet */
5781 err = brcmf_init_priv_mem(cfg);
5782 if (err)
5783 return err;
5784 brcmf_register_event_handlers(cfg);
5785 mutex_init(&cfg->usr_sync);
5786 brcmf_init_escan(cfg);
5787 brcmf_init_conf(cfg->conf);
5788 init_completion(&cfg->vif_disabled);
5789 return err;
5790 }
5791
wl_deinit_priv(struct brcmf_cfg80211_info * cfg)5792 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5793 {
5794 cfg->dongle_up = false; /* dongle down */
5795 brcmf_abort_scanning(cfg);
5796 brcmf_deinit_priv_mem(cfg);
5797 }
5798
init_vif_event(struct brcmf_cfg80211_vif_event * event)5799 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5800 {
5801 init_waitqueue_head(&event->vif_wq);
5802 spin_lock_init(&event->vif_event_lock);
5803 }
5804
brcmf_dongle_roam(struct brcmf_if * ifp)5805 static s32 brcmf_dongle_roam(struct brcmf_if *ifp)
5806 {
5807 s32 err;
5808 u32 bcn_timeout;
5809 __le32 roamtrigger[2];
5810 __le32 roam_delta[2];
5811
5812 /* Configure beacon timeout value based upon roaming setting */
5813 if (ifp->drvr->settings->roamoff)
5814 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF;
5815 else
5816 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON;
5817 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5818 if (err) {
5819 brcmf_err("bcn_timeout error (%d)\n", err);
5820 goto roam_setup_done;
5821 }
5822
5823 /* Enable/Disable built-in roaming to allow supplicant to take care of
5824 * roaming.
5825 */
5826 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5827 ifp->drvr->settings->roamoff ? "Off" : "On");
5828 err = brcmf_fil_iovar_int_set(ifp, "roam_off",
5829 ifp->drvr->settings->roamoff);
5830 if (err) {
5831 brcmf_err("roam_off error (%d)\n", err);
5832 goto roam_setup_done;
5833 }
5834
5835 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5836 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5837 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5838 (void *)roamtrigger, sizeof(roamtrigger));
5839 if (err) {
5840 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5841 goto roam_setup_done;
5842 }
5843
5844 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5845 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5846 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5847 (void *)roam_delta, sizeof(roam_delta));
5848 if (err) {
5849 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5850 goto roam_setup_done;
5851 }
5852
5853 roam_setup_done:
5854 return err;
5855 }
5856
5857 static s32
brcmf_dongle_scantime(struct brcmf_if * ifp)5858 brcmf_dongle_scantime(struct brcmf_if *ifp)
5859 {
5860 s32 err = 0;
5861
5862 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5863 BRCMF_SCAN_CHANNEL_TIME);
5864 if (err) {
5865 brcmf_err("Scan assoc time error (%d)\n", err);
5866 goto dongle_scantime_out;
5867 }
5868 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5869 BRCMF_SCAN_UNASSOC_TIME);
5870 if (err) {
5871 brcmf_err("Scan unassoc time error (%d)\n", err);
5872 goto dongle_scantime_out;
5873 }
5874
5875 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5876 BRCMF_SCAN_PASSIVE_TIME);
5877 if (err) {
5878 brcmf_err("Scan passive time error (%d)\n", err);
5879 goto dongle_scantime_out;
5880 }
5881
5882 dongle_scantime_out:
5883 return err;
5884 }
5885
brcmf_update_bw40_channel_flag(struct ieee80211_channel * channel,struct brcmu_chan * ch)5886 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5887 struct brcmu_chan *ch)
5888 {
5889 u32 ht40_flag;
5890
5891 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5892 if (ch->sb == BRCMU_CHAN_SB_U) {
5893 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5894 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5895 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5896 } else {
5897 /* It should be one of
5898 * IEEE80211_CHAN_NO_HT40 or
5899 * IEEE80211_CHAN_NO_HT40PLUS
5900 */
5901 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5902 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5903 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5904 }
5905 }
5906
brcmf_construct_chaninfo(struct brcmf_cfg80211_info * cfg,u32 bw_cap[])5907 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5908 u32 bw_cap[])
5909 {
5910 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0);
5911 struct ieee80211_supported_band *band;
5912 struct ieee80211_channel *channel;
5913 struct wiphy *wiphy;
5914 struct brcmf_chanspec_list *list;
5915 struct brcmu_chan ch;
5916 int err;
5917 u8 *pbuf;
5918 u32 i, j;
5919 u32 total;
5920 u32 chaninfo;
5921
5922 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5923
5924 if (pbuf == NULL)
5925 return -ENOMEM;
5926
5927 list = (struct brcmf_chanspec_list *)pbuf;
5928
5929 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5930 BRCMF_DCMD_MEDLEN);
5931 if (err) {
5932 brcmf_err("get chanspecs error (%d)\n", err);
5933 goto fail_pbuf;
5934 }
5935
5936 wiphy = cfg_to_wiphy(cfg);
5937 band = wiphy->bands[NL80211_BAND_2GHZ];
5938 if (band)
5939 for (i = 0; i < band->n_channels; i++)
5940 band->channels[i].flags = IEEE80211_CHAN_DISABLED;
5941 band = wiphy->bands[NL80211_BAND_5GHZ];
5942 if (band)
5943 for (i = 0; i < band->n_channels; i++)
5944 band->channels[i].flags = IEEE80211_CHAN_DISABLED;
5945
5946 total = le32_to_cpu(list->count);
5947 for (i = 0; i < total; i++) {
5948 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5949 cfg->d11inf.decchspec(&ch);
5950
5951 if (ch.band == BRCMU_CHAN_BAND_2G) {
5952 band = wiphy->bands[NL80211_BAND_2GHZ];
5953 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5954 band = wiphy->bands[NL80211_BAND_5GHZ];
5955 } else {
5956 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5957 continue;
5958 }
5959 if (!band)
5960 continue;
5961 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5962 ch.bw == BRCMU_CHAN_BW_40)
5963 continue;
5964 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5965 ch.bw == BRCMU_CHAN_BW_80)
5966 continue;
5967
5968 channel = NULL;
5969 for (j = 0; j < band->n_channels; j++) {
5970 if (band->channels[j].hw_value == ch.control_ch_num) {
5971 channel = &band->channels[j];
5972 break;
5973 }
5974 }
5975 if (!channel) {
5976 /* It seems firmware supports some channel we never
5977 * considered. Something new in IEEE standard?
5978 */
5979 brcmf_err("Ignoring unexpected firmware channel %d\n",
5980 ch.control_ch_num);
5981 continue;
5982 }
5983
5984 if (channel->orig_flags & IEEE80211_CHAN_DISABLED)
5985 continue;
5986
5987 /* assuming the chanspecs order is HT20,
5988 * HT40 upper, HT40 lower, and VHT80.
5989 */
5990 if (ch.bw == BRCMU_CHAN_BW_80) {
5991 channel->flags &= ~IEEE80211_CHAN_NO_80MHZ;
5992 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5993 brcmf_update_bw40_channel_flag(channel, &ch);
5994 } else {
5995 /* enable the channel and disable other bandwidths
5996 * for now as mentioned order assure they are enabled
5997 * for subsequent chanspecs.
5998 */
5999 channel->flags = IEEE80211_CHAN_NO_HT40 |
6000 IEEE80211_CHAN_NO_80MHZ;
6001 ch.bw = BRCMU_CHAN_BW_20;
6002 cfg->d11inf.encchspec(&ch);
6003 chaninfo = ch.chspec;
6004 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
6005 &chaninfo);
6006 if (!err) {
6007 if (chaninfo & WL_CHAN_RADAR)
6008 channel->flags |=
6009 (IEEE80211_CHAN_RADAR |
6010 IEEE80211_CHAN_NO_IR);
6011 if (chaninfo & WL_CHAN_PASSIVE)
6012 channel->flags |=
6013 IEEE80211_CHAN_NO_IR;
6014 }
6015 }
6016 }
6017
6018 fail_pbuf:
6019 kfree(pbuf);
6020 return err;
6021 }
6022
brcmf_enable_bw40_2g(struct brcmf_cfg80211_info * cfg)6023 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
6024 {
6025 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0);
6026 struct ieee80211_supported_band *band;
6027 struct brcmf_fil_bwcap_le band_bwcap;
6028 struct brcmf_chanspec_list *list;
6029 u8 *pbuf;
6030 u32 val;
6031 int err;
6032 struct brcmu_chan ch;
6033 u32 num_chan;
6034 int i, j;
6035
6036 /* verify support for bw_cap command */
6037 val = WLC_BAND_5G;
6038 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
6039
6040 if (!err) {
6041 /* only set 2G bandwidth using bw_cap command */
6042 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
6043 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
6044 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
6045 sizeof(band_bwcap));
6046 } else {
6047 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
6048 val = WLC_N_BW_40ALL;
6049 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
6050 }
6051
6052 if (!err) {
6053 /* update channel info in 2G band */
6054 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
6055
6056 if (pbuf == NULL)
6057 return -ENOMEM;
6058
6059 ch.band = BRCMU_CHAN_BAND_2G;
6060 ch.bw = BRCMU_CHAN_BW_40;
6061 ch.sb = BRCMU_CHAN_SB_NONE;
6062 ch.chnum = 0;
6063 cfg->d11inf.encchspec(&ch);
6064
6065 /* pass encoded chanspec in query */
6066 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
6067
6068 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
6069 BRCMF_DCMD_MEDLEN);
6070 if (err) {
6071 brcmf_err("get chanspecs error (%d)\n", err);
6072 kfree(pbuf);
6073 return err;
6074 }
6075
6076 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ];
6077 list = (struct brcmf_chanspec_list *)pbuf;
6078 num_chan = le32_to_cpu(list->count);
6079 for (i = 0; i < num_chan; i++) {
6080 ch.chspec = (u16)le32_to_cpu(list->element[i]);
6081 cfg->d11inf.decchspec(&ch);
6082 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
6083 continue;
6084 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
6085 continue;
6086 for (j = 0; j < band->n_channels; j++) {
6087 if (band->channels[j].hw_value == ch.control_ch_num)
6088 break;
6089 }
6090 if (WARN_ON(j == band->n_channels))
6091 continue;
6092
6093 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
6094 }
6095 kfree(pbuf);
6096 }
6097 return err;
6098 }
6099
brcmf_get_bwcap(struct brcmf_if * ifp,u32 bw_cap[])6100 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
6101 {
6102 u32 band, mimo_bwcap;
6103 int err;
6104
6105 band = WLC_BAND_2G;
6106 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
6107 if (!err) {
6108 bw_cap[NL80211_BAND_2GHZ] = band;
6109 band = WLC_BAND_5G;
6110 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
6111 if (!err) {
6112 bw_cap[NL80211_BAND_5GHZ] = band;
6113 return;
6114 }
6115 WARN_ON(1);
6116 return;
6117 }
6118 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
6119 mimo_bwcap = 0;
6120 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
6121 if (err)
6122 /* assume 20MHz if firmware does not give a clue */
6123 mimo_bwcap = WLC_N_BW_20ALL;
6124
6125 switch (mimo_bwcap) {
6126 case WLC_N_BW_40ALL:
6127 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
6128 /* fall-thru */
6129 case WLC_N_BW_20IN2G_40IN5G:
6130 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
6131 /* fall-thru */
6132 case WLC_N_BW_20ALL:
6133 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
6134 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
6135 break;
6136 default:
6137 brcmf_err("invalid mimo_bw_cap value\n");
6138 }
6139 }
6140
brcmf_update_ht_cap(struct ieee80211_supported_band * band,u32 bw_cap[2],u32 nchain)6141 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
6142 u32 bw_cap[2], u32 nchain)
6143 {
6144 band->ht_cap.ht_supported = true;
6145 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
6146 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
6147 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6148 }
6149 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
6150 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
6151 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
6152 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
6153 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
6154 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
6155 }
6156
brcmf_get_mcs_map(u32 nchain,enum ieee80211_vht_mcs_support supp)6157 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
6158 {
6159 u16 mcs_map;
6160 int i;
6161
6162 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
6163 mcs_map = (mcs_map << 2) | supp;
6164
6165 return cpu_to_le16(mcs_map);
6166 }
6167
brcmf_update_vht_cap(struct ieee80211_supported_band * band,u32 bw_cap[2],u32 nchain,u32 txstreams,u32 txbf_bfe_cap,u32 txbf_bfr_cap)6168 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
6169 u32 bw_cap[2], u32 nchain, u32 txstreams,
6170 u32 txbf_bfe_cap, u32 txbf_bfr_cap)
6171 {
6172 __le16 mcs_map;
6173
6174 /* not allowed in 2.4G band */
6175 if (band->band == NL80211_BAND_2GHZ)
6176 return;
6177
6178 band->vht_cap.vht_supported = true;
6179 /* 80MHz is mandatory */
6180 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
6181 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
6182 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
6183 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
6184 }
6185 /* all support 256-QAM */
6186 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
6187 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
6188 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
6189
6190 /* Beamforming support information */
6191 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP)
6192 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
6193 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP)
6194 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
6195 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP)
6196 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
6197 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP)
6198 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE;
6199
6200 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) {
6201 band->vht_cap.cap |=
6202 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
6203 band->vht_cap.cap |= ((txstreams - 1) <<
6204 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
6205 band->vht_cap.cap |=
6206 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB;
6207 }
6208 }
6209
brcmf_setup_wiphybands(struct brcmf_cfg80211_info * cfg)6210 static int brcmf_setup_wiphybands(struct brcmf_cfg80211_info *cfg)
6211 {
6212 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0);
6213 struct wiphy *wiphy;
6214 u32 nmode = 0;
6215 u32 vhtmode = 0;
6216 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
6217 u32 rxchain;
6218 u32 nchain;
6219 int err;
6220 s32 i;
6221 struct ieee80211_supported_band *band;
6222 u32 txstreams = 0;
6223 u32 txbf_bfe_cap = 0;
6224 u32 txbf_bfr_cap = 0;
6225
6226 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
6227 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
6228 if (err) {
6229 brcmf_err("nmode error (%d)\n", err);
6230 } else {
6231 brcmf_get_bwcap(ifp, bw_cap);
6232 }
6233 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
6234 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ],
6235 bw_cap[NL80211_BAND_5GHZ]);
6236
6237 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
6238 if (err) {
6239 brcmf_err("rxchain error (%d)\n", err);
6240 nchain = 1;
6241 } else {
6242 for (nchain = 0; rxchain; nchain++)
6243 rxchain = rxchain & (rxchain - 1);
6244 }
6245 brcmf_dbg(INFO, "nchain=%d\n", nchain);
6246
6247 err = brcmf_construct_chaninfo(cfg, bw_cap);
6248 if (err) {
6249 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
6250 return err;
6251 }
6252
6253 if (vhtmode) {
6254 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams);
6255 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap",
6256 &txbf_bfe_cap);
6257 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap",
6258 &txbf_bfr_cap);
6259 }
6260
6261 wiphy = cfg_to_wiphy(cfg);
6262 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
6263 band = wiphy->bands[i];
6264 if (band == NULL)
6265 continue;
6266
6267 if (nmode)
6268 brcmf_update_ht_cap(band, bw_cap, nchain);
6269 if (vhtmode)
6270 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams,
6271 txbf_bfe_cap, txbf_bfr_cap);
6272 }
6273
6274 return 0;
6275 }
6276
6277 static const struct ieee80211_txrx_stypes
6278 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
6279 [NL80211_IFTYPE_STATION] = {
6280 .tx = 0xffff,
6281 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6282 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6283 },
6284 [NL80211_IFTYPE_P2P_CLIENT] = {
6285 .tx = 0xffff,
6286 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6287 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6288 },
6289 [NL80211_IFTYPE_P2P_GO] = {
6290 .tx = 0xffff,
6291 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
6292 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
6293 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
6294 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
6295 BIT(IEEE80211_STYPE_AUTH >> 4) |
6296 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
6297 BIT(IEEE80211_STYPE_ACTION >> 4)
6298 },
6299 [NL80211_IFTYPE_P2P_DEVICE] = {
6300 .tx = 0xffff,
6301 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
6302 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
6303 }
6304 };
6305
6306 /**
6307 * brcmf_setup_ifmodes() - determine interface modes and combinations.
6308 *
6309 * @wiphy: wiphy object.
6310 * @ifp: interface object needed for feat module api.
6311 *
6312 * The interface modes and combinations are determined dynamically here
6313 * based on firmware functionality.
6314 *
6315 * no p2p and no mbss:
6316 *
6317 * #STA <= 1, #AP <= 1, channels = 1, 2 total
6318 *
6319 * no p2p and mbss:
6320 *
6321 * #STA <= 1, #AP <= 1, channels = 1, 2 total
6322 * #AP <= 4, matching BI, channels = 1, 4 total
6323 *
6324 * p2p, no mchan, and mbss:
6325 *
6326 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total
6327 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total
6328 * #AP <= 4, matching BI, channels = 1, 4 total
6329 *
6330 * p2p, mchan, and mbss:
6331 *
6332 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total
6333 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total
6334 * #AP <= 4, matching BI, channels = 1, 4 total
6335 */
brcmf_setup_ifmodes(struct wiphy * wiphy,struct brcmf_if * ifp)6336 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
6337 {
6338 struct ieee80211_iface_combination *combo = NULL;
6339 struct ieee80211_iface_limit *c0_limits = NULL;
6340 struct ieee80211_iface_limit *p2p_limits = NULL;
6341 struct ieee80211_iface_limit *mbss_limits = NULL;
6342 bool mbss, p2p;
6343 int i, c, n_combos;
6344
6345 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS);
6346 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P);
6347
6348 n_combos = 1 + !!p2p + !!mbss;
6349 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL);
6350 if (!combo)
6351 goto err;
6352
6353 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
6354 BIT(NL80211_IFTYPE_ADHOC) |
6355 BIT(NL80211_IFTYPE_AP);
6356
6357 c = 0;
6358 i = 0;
6359 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL);
6360 if (!c0_limits)
6361 goto err;
6362 c0_limits[i].max = 1;
6363 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
6364 if (p2p) {
6365 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
6366 combo[c].num_different_channels = 2;
6367 else
6368 combo[c].num_different_channels = 1;
6369 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) |
6370 BIT(NL80211_IFTYPE_P2P_GO) |
6371 BIT(NL80211_IFTYPE_P2P_DEVICE);
6372 c0_limits[i].max = 1;
6373 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE);
6374 c0_limits[i].max = 1;
6375 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
6376 BIT(NL80211_IFTYPE_P2P_GO);
6377 } else {
6378 combo[c].num_different_channels = 1;
6379 c0_limits[i].max = 1;
6380 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6381 }
6382 combo[c].max_interfaces = i;
6383 combo[c].n_limits = i;
6384 combo[c].limits = c0_limits;
6385
6386 if (p2p) {
6387 c++;
6388 i = 0;
6389 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL);
6390 if (!p2p_limits)
6391 goto err;
6392 p2p_limits[i].max = 1;
6393 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
6394 p2p_limits[i].max = 1;
6395 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6396 p2p_limits[i].max = 1;
6397 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT);
6398 p2p_limits[i].max = 1;
6399 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE);
6400 combo[c].num_different_channels = 1;
6401 combo[c].max_interfaces = i;
6402 combo[c].n_limits = i;
6403 combo[c].limits = p2p_limits;
6404 }
6405
6406 if (mbss) {
6407 c++;
6408 i = 0;
6409 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL);
6410 if (!mbss_limits)
6411 goto err;
6412 mbss_limits[i].max = 4;
6413 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP);
6414 combo[c].beacon_int_infra_match = true;
6415 combo[c].num_different_channels = 1;
6416 combo[c].max_interfaces = 4;
6417 combo[c].n_limits = i;
6418 combo[c].limits = mbss_limits;
6419 }
6420
6421 wiphy->n_iface_combinations = n_combos;
6422 wiphy->iface_combinations = combo;
6423 return 0;
6424
6425 err:
6426 kfree(c0_limits);
6427 kfree(p2p_limits);
6428 kfree(mbss_limits);
6429 kfree(combo);
6430 return -ENOMEM;
6431 }
6432
6433 #ifdef CONFIG_PM
6434 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
6435 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
6436 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
6437 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
6438 .pattern_min_len = 1,
6439 .max_pkt_offset = 1500,
6440 };
6441 #endif
6442
brcmf_wiphy_wowl_params(struct wiphy * wiphy,struct brcmf_if * ifp)6443 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp)
6444 {
6445 #ifdef CONFIG_PM
6446 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
6447 struct wiphy_wowlan_support *wowl;
6448
6449 wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support),
6450 GFP_KERNEL);
6451 if (!wowl) {
6452 brcmf_err("only support basic wowlan features\n");
6453 wiphy->wowlan = &brcmf_wowlan_support;
6454 return;
6455 }
6456
6457 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) {
6458 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) {
6459 wowl->flags |= WIPHY_WOWLAN_NET_DETECT;
6460 wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
6461 init_waitqueue_head(&cfg->wowl.nd_data_wait);
6462 }
6463 }
6464 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) {
6465 wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY;
6466 wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE;
6467 }
6468
6469 wiphy->wowlan = wowl;
6470 #endif
6471 }
6472
brcmf_setup_wiphy(struct wiphy * wiphy,struct brcmf_if * ifp)6473 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
6474 {
6475 struct brcmf_pub *drvr = ifp->drvr;
6476 const struct ieee80211_iface_combination *combo;
6477 struct ieee80211_supported_band *band;
6478 u16 max_interfaces = 0;
6479 bool gscan;
6480 __le32 bandlist[3];
6481 u32 n_bands;
6482 int err, i;
6483
6484 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
6485 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
6486 wiphy->max_num_pmkids = BRCMF_MAXPMKID;
6487
6488 err = brcmf_setup_ifmodes(wiphy, ifp);
6489 if (err)
6490 return err;
6491
6492 for (i = 0, combo = wiphy->iface_combinations;
6493 i < wiphy->n_iface_combinations; i++, combo++) {
6494 max_interfaces = max(max_interfaces, combo->max_interfaces);
6495 }
6496
6497 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses);
6498 i++) {
6499 u8 *addr = drvr->addresses[i].addr;
6500
6501 memcpy(addr, drvr->mac, ETH_ALEN);
6502 if (i) {
6503 addr[0] |= BIT(1);
6504 addr[ETH_ALEN - 1] ^= i;
6505 }
6506 }
6507 wiphy->addresses = drvr->addresses;
6508 wiphy->n_addresses = i;
6509
6510 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
6511 wiphy->cipher_suites = brcmf_cipher_suites;
6512 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites);
6513 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
6514 wiphy->n_cipher_suites--;
6515 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) |
6516 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) |
6517 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST);
6518
6519 wiphy->flags |= WIPHY_FLAG_NETNS_OK |
6520 WIPHY_FLAG_PS_ON_BY_DEFAULT |
6521 WIPHY_FLAG_HAVE_AP_SME |
6522 WIPHY_FLAG_OFFCHAN_TX |
6523 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
6524 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS))
6525 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
6526 if (!ifp->drvr->settings->roamoff)
6527 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
6528 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) {
6529 wiphy_ext_feature_set(wiphy,
6530 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK);
6531 wiphy_ext_feature_set(wiphy,
6532 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X);
6533 }
6534 wiphy->mgmt_stypes = brcmf_txrx_stypes;
6535 wiphy->max_remain_on_channel_duration = 5000;
6536 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) {
6537 gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN);
6538 brcmf_pno_wiphy_params(wiphy, gscan);
6539 }
6540 /* vendor commands/events support */
6541 wiphy->vendor_commands = brcmf_vendor_cmds;
6542 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
6543
6544 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
6545 brcmf_wiphy_wowl_params(wiphy, ifp);
6546 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist,
6547 sizeof(bandlist));
6548 if (err) {
6549 brcmf_err("could not obtain band info: err=%d\n", err);
6550 return err;
6551 }
6552 /* first entry in bandlist is number of bands */
6553 n_bands = le32_to_cpu(bandlist[0]);
6554 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) {
6555 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) {
6556 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
6557 GFP_KERNEL);
6558 if (!band)
6559 return -ENOMEM;
6560
6561 band->channels = kmemdup(&__wl_2ghz_channels,
6562 sizeof(__wl_2ghz_channels),
6563 GFP_KERNEL);
6564 if (!band->channels) {
6565 kfree(band);
6566 return -ENOMEM;
6567 }
6568
6569 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels);
6570 wiphy->bands[NL80211_BAND_2GHZ] = band;
6571 }
6572 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) {
6573 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz),
6574 GFP_KERNEL);
6575 if (!band)
6576 return -ENOMEM;
6577
6578 band->channels = kmemdup(&__wl_5ghz_channels,
6579 sizeof(__wl_5ghz_channels),
6580 GFP_KERNEL);
6581 if (!band->channels) {
6582 kfree(band);
6583 return -ENOMEM;
6584 }
6585
6586 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels);
6587 wiphy->bands[NL80211_BAND_5GHZ] = band;
6588 }
6589 }
6590
6591 wiphy_read_of_freq_limits(wiphy);
6592
6593 return 0;
6594 }
6595
brcmf_config_dongle(struct brcmf_cfg80211_info * cfg)6596 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
6597 {
6598 struct net_device *ndev;
6599 struct wireless_dev *wdev;
6600 struct brcmf_if *ifp;
6601 s32 power_mode;
6602 s32 err = 0;
6603
6604 if (cfg->dongle_up)
6605 return err;
6606
6607 ndev = cfg_to_ndev(cfg);
6608 wdev = ndev->ieee80211_ptr;
6609 ifp = netdev_priv(ndev);
6610
6611 /* make sure RF is ready for work */
6612 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
6613
6614 brcmf_dongle_scantime(ifp);
6615
6616 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
6617 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
6618 if (err)
6619 goto default_conf_out;
6620 brcmf_dbg(INFO, "power save set to %s\n",
6621 (power_mode ? "enabled" : "disabled"));
6622
6623 err = brcmf_dongle_roam(ifp);
6624 if (err)
6625 goto default_conf_out;
6626 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
6627 NULL);
6628 if (err)
6629 goto default_conf_out;
6630
6631 brcmf_configure_arp_nd_offload(ifp, true);
6632
6633 cfg->dongle_up = true;
6634 default_conf_out:
6635
6636 return err;
6637
6638 }
6639
__brcmf_cfg80211_up(struct brcmf_if * ifp)6640 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
6641 {
6642 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
6643
6644 return brcmf_config_dongle(ifp->drvr->config);
6645 }
6646
__brcmf_cfg80211_down(struct brcmf_if * ifp)6647 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
6648 {
6649 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6650
6651 /*
6652 * While going down, if associated with AP disassociate
6653 * from AP to save power
6654 */
6655 if (check_vif_up(ifp->vif)) {
6656 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED);
6657
6658 /* Make sure WPA_Supplicant receives all the event
6659 generated due to DISASSOC call to the fw to keep
6660 the state fw and WPA_Supplicant state consistent
6661 */
6662 brcmf_delay(500);
6663 }
6664
6665 brcmf_abort_scanning(cfg);
6666 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
6667
6668 return 0;
6669 }
6670
brcmf_cfg80211_up(struct net_device * ndev)6671 s32 brcmf_cfg80211_up(struct net_device *ndev)
6672 {
6673 struct brcmf_if *ifp = netdev_priv(ndev);
6674 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6675 s32 err = 0;
6676
6677 mutex_lock(&cfg->usr_sync);
6678 err = __brcmf_cfg80211_up(ifp);
6679 mutex_unlock(&cfg->usr_sync);
6680
6681 return err;
6682 }
6683
brcmf_cfg80211_down(struct net_device * ndev)6684 s32 brcmf_cfg80211_down(struct net_device *ndev)
6685 {
6686 struct brcmf_if *ifp = netdev_priv(ndev);
6687 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
6688 s32 err = 0;
6689
6690 mutex_lock(&cfg->usr_sync);
6691 err = __brcmf_cfg80211_down(ifp);
6692 mutex_unlock(&cfg->usr_sync);
6693
6694 return err;
6695 }
6696
brcmf_cfg80211_get_iftype(struct brcmf_if * ifp)6697 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
6698 {
6699 struct wireless_dev *wdev = &ifp->vif->wdev;
6700
6701 return wdev->iftype;
6702 }
6703
brcmf_get_vif_state_any(struct brcmf_cfg80211_info * cfg,unsigned long state)6704 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
6705 unsigned long state)
6706 {
6707 struct brcmf_cfg80211_vif *vif;
6708
6709 list_for_each_entry(vif, &cfg->vif_list, list) {
6710 if (test_bit(state, &vif->sme_state))
6711 return true;
6712 }
6713 return false;
6714 }
6715
vif_event_equals(struct brcmf_cfg80211_vif_event * event,u8 action)6716 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
6717 u8 action)
6718 {
6719 u8 evt_action;
6720
6721 spin_lock(&event->vif_event_lock);
6722 evt_action = event->action;
6723 spin_unlock(&event->vif_event_lock);
6724 return evt_action == action;
6725 }
6726
brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info * cfg,struct brcmf_cfg80211_vif * vif)6727 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
6728 struct brcmf_cfg80211_vif *vif)
6729 {
6730 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6731
6732 spin_lock(&event->vif_event_lock);
6733 event->vif = vif;
6734 event->action = 0;
6735 spin_unlock(&event->vif_event_lock);
6736 }
6737
brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info * cfg)6738 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
6739 {
6740 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6741 bool armed;
6742
6743 spin_lock(&event->vif_event_lock);
6744 armed = event->vif != NULL;
6745 spin_unlock(&event->vif_event_lock);
6746
6747 return armed;
6748 }
6749
brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info * cfg,u8 action,ulong timeout)6750 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg,
6751 u8 action, ulong timeout)
6752 {
6753 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
6754
6755 return wait_event_timeout(event->vif_wq,
6756 vif_event_equals(event, action), timeout);
6757 }
6758
brcmf_translate_country_code(struct brcmf_pub * drvr,char alpha2[2],struct brcmf_fil_country_le * ccreq)6759 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2],
6760 struct brcmf_fil_country_le *ccreq)
6761 {
6762 struct brcmfmac_pd_cc *country_codes;
6763 struct brcmfmac_pd_cc_entry *cc;
6764 s32 found_index;
6765 int i;
6766
6767 country_codes = drvr->settings->country_codes;
6768 if (!country_codes) {
6769 brcmf_dbg(TRACE, "No country codes configured for device\n");
6770 return -EINVAL;
6771 }
6772
6773 if ((alpha2[0] == ccreq->country_abbrev[0]) &&
6774 (alpha2[1] == ccreq->country_abbrev[1])) {
6775 brcmf_dbg(TRACE, "Country code already set\n");
6776 return -EAGAIN;
6777 }
6778
6779 found_index = -1;
6780 for (i = 0; i < country_codes->table_size; i++) {
6781 cc = &country_codes->table[i];
6782 if ((cc->iso3166[0] == '\0') && (found_index == -1))
6783 found_index = i;
6784 if ((cc->iso3166[0] == alpha2[0]) &&
6785 (cc->iso3166[1] == alpha2[1])) {
6786 found_index = i;
6787 break;
6788 }
6789 }
6790 if (found_index == -1) {
6791 brcmf_dbg(TRACE, "No country code match found\n");
6792 return -EINVAL;
6793 }
6794 memset(ccreq, 0, sizeof(*ccreq));
6795 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev);
6796 memcpy(ccreq->ccode, country_codes->table[found_index].cc,
6797 BRCMF_COUNTRY_BUF_SZ);
6798 ccreq->country_abbrev[0] = alpha2[0];
6799 ccreq->country_abbrev[1] = alpha2[1];
6800 ccreq->country_abbrev[2] = 0;
6801
6802 return 0;
6803 }
6804
brcmf_cfg80211_reg_notifier(struct wiphy * wiphy,struct regulatory_request * req)6805 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
6806 struct regulatory_request *req)
6807 {
6808 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
6809 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0);
6810 struct brcmf_fil_country_le ccreq;
6811 s32 err;
6812 int i;
6813
6814 /* The country code gets set to "00" by default at boot, ignore */
6815 if (req->alpha2[0] == '0' && req->alpha2[1] == '0')
6816 return;
6817
6818 /* ignore non-ISO3166 country codes */
6819 for (i = 0; i < 2; i++)
6820 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
6821 brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n",
6822 req->alpha2[0], req->alpha2[1]);
6823 return;
6824 }
6825
6826 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator,
6827 req->alpha2[0], req->alpha2[1]);
6828
6829 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq));
6830 if (err) {
6831 brcmf_err("Country code iovar returned err = %d\n", err);
6832 return;
6833 }
6834
6835 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq);
6836 if (err)
6837 return;
6838
6839 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
6840 if (err) {
6841 brcmf_err("Firmware rejected country setting\n");
6842 return;
6843 }
6844 brcmf_setup_wiphybands(cfg);
6845 }
6846
brcmf_free_wiphy(struct wiphy * wiphy)6847 static void brcmf_free_wiphy(struct wiphy *wiphy)
6848 {
6849 int i;
6850
6851 if (!wiphy)
6852 return;
6853
6854 if (wiphy->iface_combinations) {
6855 for (i = 0; i < wiphy->n_iface_combinations; i++)
6856 kfree(wiphy->iface_combinations[i].limits);
6857 }
6858 kfree(wiphy->iface_combinations);
6859 if (wiphy->bands[NL80211_BAND_2GHZ]) {
6860 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels);
6861 kfree(wiphy->bands[NL80211_BAND_2GHZ]);
6862 }
6863 if (wiphy->bands[NL80211_BAND_5GHZ]) {
6864 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels);
6865 kfree(wiphy->bands[NL80211_BAND_5GHZ]);
6866 }
6867 #if IS_ENABLED(CONFIG_PM)
6868 if (wiphy->wowlan != &brcmf_wowlan_support)
6869 kfree(wiphy->wowlan);
6870 #endif
6871 }
6872
brcmf_cfg80211_attach(struct brcmf_pub * drvr,struct cfg80211_ops * ops,bool p2pdev_forced)6873 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
6874 struct cfg80211_ops *ops,
6875 bool p2pdev_forced)
6876 {
6877 struct wiphy *wiphy = drvr->wiphy;
6878 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev;
6879 struct brcmf_cfg80211_info *cfg;
6880 struct brcmf_cfg80211_vif *vif;
6881 struct brcmf_if *ifp;
6882 s32 err = 0;
6883 s32 io_type;
6884 u16 *cap = NULL;
6885
6886 if (!ndev) {
6887 brcmf_err("ndev is invalid\n");
6888 return NULL;
6889 }
6890
6891 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
6892 if (!cfg) {
6893 brcmf_err("Could not allocate wiphy device\n");
6894 return NULL;
6895 }
6896
6897 cfg->wiphy = wiphy;
6898 cfg->pub = drvr;
6899 init_vif_event(&cfg->vif_event);
6900 INIT_LIST_HEAD(&cfg->vif_list);
6901
6902 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION);
6903 if (IS_ERR(vif))
6904 goto wiphy_out;
6905
6906 ifp = netdev_priv(ndev);
6907 vif->ifp = ifp;
6908 vif->wdev.netdev = ndev;
6909 ndev->ieee80211_ptr = &vif->wdev;
6910 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
6911
6912 err = wl_init_priv(cfg);
6913 if (err) {
6914 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6915 brcmf_free_vif(vif);
6916 goto wiphy_out;
6917 }
6918 ifp->vif = vif;
6919
6920 /* determine d11 io type before wiphy setup */
6921 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6922 if (err) {
6923 brcmf_err("Failed to get D11 version (%d)\n", err);
6924 goto priv_out;
6925 }
6926 cfg->d11inf.io_type = (u8)io_type;
6927 brcmu_d11_attach(&cfg->d11inf);
6928
6929 /* regulatory notifer below needs access to cfg so
6930 * assign it now.
6931 */
6932 drvr->config = cfg;
6933
6934 err = brcmf_setup_wiphy(wiphy, ifp);
6935 if (err < 0)
6936 goto priv_out;
6937
6938 brcmf_dbg(INFO, "Registering custom regulatory\n");
6939 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6940 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6941 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6942
6943 /* firmware defaults to 40MHz disabled in 2G band. We signal
6944 * cfg80211 here that we do and have it decide we can enable
6945 * it. But first check if device does support 2G operation.
6946 */
6947 if (wiphy->bands[NL80211_BAND_2GHZ]) {
6948 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap;
6949 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6950 }
6951 #ifdef CONFIG_PM
6952 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK))
6953 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data;
6954 #endif
6955 err = wiphy_register(wiphy);
6956 if (err < 0) {
6957 brcmf_err("Could not register wiphy device (%d)\n", err);
6958 goto priv_out;
6959 }
6960
6961 err = brcmf_setup_wiphybands(cfg);
6962 if (err) {
6963 brcmf_err("Setting wiphy bands failed (%d)\n", err);
6964 goto wiphy_unreg_out;
6965 }
6966
6967 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6968 * setup 40MHz in 2GHz band and enable OBSS scanning.
6969 */
6970 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6971 err = brcmf_enable_bw40_2g(cfg);
6972 if (!err)
6973 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6974 BRCMF_OBSS_COEX_AUTO);
6975 else
6976 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6977 }
6978
6979 err = brcmf_fweh_activate_events(ifp);
6980 if (err) {
6981 brcmf_err("FWEH activation failed (%d)\n", err);
6982 goto wiphy_unreg_out;
6983 }
6984
6985 err = brcmf_p2p_attach(cfg, p2pdev_forced);
6986 if (err) {
6987 brcmf_err("P2P initialisation failed (%d)\n", err);
6988 goto wiphy_unreg_out;
6989 }
6990 err = brcmf_btcoex_attach(cfg);
6991 if (err) {
6992 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6993 brcmf_p2p_detach(&cfg->p2p);
6994 goto wiphy_unreg_out;
6995 }
6996 err = brcmf_pno_attach(cfg);
6997 if (err) {
6998 brcmf_err("PNO initialisation failed (%d)\n", err);
6999 brcmf_btcoex_detach(cfg);
7000 brcmf_p2p_detach(&cfg->p2p);
7001 goto wiphy_unreg_out;
7002 }
7003
7004 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) {
7005 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
7006 if (err) {
7007 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
7008 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
7009 } else {
7010 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
7011 brcmf_notify_tdls_peer_event);
7012 }
7013 }
7014
7015 /* (re-) activate FWEH event handling */
7016 err = brcmf_fweh_activate_events(ifp);
7017 if (err) {
7018 brcmf_err("FWEH activation failed (%d)\n", err);
7019 goto detach;
7020 }
7021
7022 /* Fill in some of the advertised nl80211 supported features */
7023 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) {
7024 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7025 #ifdef CONFIG_PM
7026 if (wiphy->wowlan &&
7027 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT)
7028 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7029 #endif
7030 }
7031
7032 return cfg;
7033
7034 detach:
7035 brcmf_pno_detach(cfg);
7036 brcmf_btcoex_detach(cfg);
7037 brcmf_p2p_detach(&cfg->p2p);
7038 wiphy_unreg_out:
7039 wiphy_unregister(cfg->wiphy);
7040 priv_out:
7041 wl_deinit_priv(cfg);
7042 brcmf_free_vif(vif);
7043 ifp->vif = NULL;
7044 wiphy_out:
7045 brcmf_free_wiphy(wiphy);
7046 kfree(cfg);
7047 return NULL;
7048 }
7049
brcmf_cfg80211_detach(struct brcmf_cfg80211_info * cfg)7050 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
7051 {
7052 if (!cfg)
7053 return;
7054
7055 brcmf_pno_detach(cfg);
7056 brcmf_btcoex_detach(cfg);
7057 wiphy_unregister(cfg->wiphy);
7058 kfree(cfg->ops);
7059 wl_deinit_priv(cfg);
7060 brcmf_free_wiphy(cfg->wiphy);
7061 kfree(cfg);
7062 }
7063
