1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
18
19 #include <linux/kernel.h>
20 #include <linux/etherdevice.h>
21 #include <linux/module.h>
22 #include <linux/vmalloc.h>
23 #include <net/cfg80211.h>
24 #include <net/netlink.h>
25
26 #include <brcmu_utils.h>
27 #include <defs.h>
28 #include <brcmu_wifi.h>
29 #include "core.h"
30 #include "debug.h"
31 #include "tracepoint.h"
32 #include "fwil_types.h"
33 #include "p2p.h"
34 #include "btcoex.h"
35 #include "cfg80211.h"
36 #include "feature.h"
37 #include "fwil.h"
38 #include "proto.h"
39 #include "vendor.h"
40 #include "bus.h"
41 #include "common.h"
42
43 #define BRCMF_SCAN_IE_LEN_MAX 2048
44 #define BRCMF_PNO_VERSION 2
45 #define BRCMF_PNO_TIME 30
46 #define BRCMF_PNO_REPEAT 4
47 #define BRCMF_PNO_FREQ_EXPO_MAX 3
48 #define BRCMF_PNO_MAX_PFN_COUNT 16
49 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
50 #define BRCMF_PNO_HIDDEN_BIT 2
51 #define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
52 #define BRCMF_PNO_SCAN_COMPLETE 1
53 #define BRCMF_PNO_SCAN_INCOMPLETE 0
54
55 #define BRCMF_IFACE_MAX_CNT 3
56
57 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
58 #define WPA_OUI_TYPE 1
59 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
60 #define WME_OUI_TYPE 2
61 #define WPS_OUI_TYPE 4
62
63 #define VS_IE_FIXED_HDR_LEN 6
64 #define WPA_IE_VERSION_LEN 2
65 #define WPA_IE_MIN_OUI_LEN 4
66 #define WPA_IE_SUITE_COUNT_LEN 2
67
68 #define WPA_CIPHER_NONE 0 /* None */
69 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
70 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
71 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
72 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
73
74 #define RSN_AKM_NONE 0 /* None (IBSS) */
75 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
76 #define RSN_AKM_PSK 2 /* Pre-shared Key */
77 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
78 #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
79
80 #define VNDR_IE_CMD_LEN 4 /* length of the set command
81 * string :"add", "del" (+ NUL)
82 */
83 #define VNDR_IE_COUNT_OFFSET 4
84 #define VNDR_IE_PKTFLAG_OFFSET 8
85 #define VNDR_IE_VSIE_OFFSET 12
86 #define VNDR_IE_HDR_SIZE 12
87 #define VNDR_IE_PARSE_LIMIT 5
88
89 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
90 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
91
92 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
93 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
94 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
95
96 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
97 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
98
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_a_rates (__wl_rates + 4)
133 #define wl_a_rates_size 8
134 #define wl_g_rates (__wl_rates + 0)
135 #define wl_g_rates_size 12
136
137 /* Band templates duplicated per wiphy. The channel info
138 * is filled in after querying the device.
139 */
140 static const struct ieee80211_supported_band __wl_band_2ghz = {
141 .band = IEEE80211_BAND_2GHZ,
142 .bitrates = wl_g_rates,
143 .n_bitrates = wl_g_rates_size,
144 };
145
146 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
147 .band = IEEE80211_BAND_5GHZ,
148 .bitrates = wl_a_rates,
149 .n_bitrates = wl_a_rates_size,
150 };
151
152 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
153 * By default world regulatory domain defined in reg.c puts the flags
154 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
155 * With respect to these flags, wpa_supplicant doesn't * start p2p
156 * operations on 5GHz channels. All the changes in world regulatory
157 * domain are to be done here.
158 */
159 static const struct ieee80211_regdomain brcmf_regdom = {
160 .n_reg_rules = 4,
161 .alpha2 = "99",
162 .reg_rules = {
163 /* IEEE 802.11b/g, channels 1..11 */
164 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
165 /* If any */
166 /* IEEE 802.11 channel 14 - Only JP enables
167 * this and for 802.11b only
168 */
169 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
170 /* IEEE 802.11a, channel 36..64 */
171 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
172 /* IEEE 802.11a, channel 100..165 */
173 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
174 };
175
176 static const u32 __wl_cipher_suites[] = {
177 WLAN_CIPHER_SUITE_WEP40,
178 WLAN_CIPHER_SUITE_WEP104,
179 WLAN_CIPHER_SUITE_TKIP,
180 WLAN_CIPHER_SUITE_CCMP,
181 WLAN_CIPHER_SUITE_AES_CMAC,
182 };
183
184 /* Vendor specific ie. id = 221, oui and type defines exact ie */
185 struct brcmf_vs_tlv {
186 u8 id;
187 u8 len;
188 u8 oui[3];
189 u8 oui_type;
190 };
191
192 struct parsed_vndr_ie_info {
193 u8 *ie_ptr;
194 u32 ie_len; /* total length including id & length field */
195 struct brcmf_vs_tlv vndrie;
196 };
197
198 struct parsed_vndr_ies {
199 u32 count;
200 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
201 };
202
203 static int brcmf_roamoff;
204 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
205 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
206
207 /* Quarter dBm units to mW
208 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
209 * Table is offset so the last entry is largest mW value that fits in
210 * a u16.
211 */
212
213 #define QDBM_OFFSET 153 /* Offset for first entry */
214 #define QDBM_TABLE_LEN 40 /* Table size */
215
216 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
217 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
218 */
219 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
220
221 /* Largest mW value that will round down to the last table entry,
222 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
223 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
224 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
225 */
226 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
227
228 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
229 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
230 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
231 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
232 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
233 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
234 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
235 };
236
brcmf_qdbm_to_mw(u8 qdbm)237 static u16 brcmf_qdbm_to_mw(u8 qdbm)
238 {
239 uint factor = 1;
240 int idx = qdbm - QDBM_OFFSET;
241
242 if (idx >= QDBM_TABLE_LEN)
243 /* clamp to max u16 mW value */
244 return 0xFFFF;
245
246 /* scale the qdBm index up to the range of the table 0-40
247 * where an offset of 40 qdBm equals a factor of 10 mW.
248 */
249 while (idx < 0) {
250 idx += 40;
251 factor *= 10;
252 }
253
254 /* return the mW value scaled down to the correct factor of 10,
255 * adding in factor/2 to get proper rounding.
256 */
257 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
258 }
259
brcmf_mw_to_qdbm(u16 mw)260 static u8 brcmf_mw_to_qdbm(u16 mw)
261 {
262 u8 qdbm;
263 int offset;
264 uint mw_uint = mw;
265 uint boundary;
266
267 /* handle boundary case */
268 if (mw_uint <= 1)
269 return 0;
270
271 offset = QDBM_OFFSET;
272
273 /* move mw into the range of the table */
274 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
275 mw_uint *= 10;
276 offset -= 40;
277 }
278
279 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
280 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
281 nqdBm_to_mW_map[qdbm]) / 2;
282 if (mw_uint < boundary)
283 break;
284 }
285
286 qdbm += (u8) offset;
287
288 return qdbm;
289 }
290
chandef_to_chanspec(struct brcmu_d11inf * d11inf,struct cfg80211_chan_def * ch)291 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
292 struct cfg80211_chan_def *ch)
293 {
294 struct brcmu_chan ch_inf;
295 s32 primary_offset;
296
297 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
298 ch->chan->center_freq, ch->center_freq1, ch->width);
299 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
300 primary_offset = ch->center_freq1 - ch->chan->center_freq;
301 switch (ch->width) {
302 case NL80211_CHAN_WIDTH_20:
303 case NL80211_CHAN_WIDTH_20_NOHT:
304 ch_inf.bw = BRCMU_CHAN_BW_20;
305 WARN_ON(primary_offset != 0);
306 break;
307 case NL80211_CHAN_WIDTH_40:
308 ch_inf.bw = BRCMU_CHAN_BW_40;
309 if (primary_offset < 0)
310 ch_inf.sb = BRCMU_CHAN_SB_U;
311 else
312 ch_inf.sb = BRCMU_CHAN_SB_L;
313 break;
314 case NL80211_CHAN_WIDTH_80:
315 ch_inf.bw = BRCMU_CHAN_BW_80;
316 if (primary_offset < 0) {
317 if (primary_offset < -CH_10MHZ_APART)
318 ch_inf.sb = BRCMU_CHAN_SB_UU;
319 else
320 ch_inf.sb = BRCMU_CHAN_SB_UL;
321 } else {
322 if (primary_offset > CH_10MHZ_APART)
323 ch_inf.sb = BRCMU_CHAN_SB_LL;
324 else
325 ch_inf.sb = BRCMU_CHAN_SB_LU;
326 }
327 break;
328 case NL80211_CHAN_WIDTH_80P80:
329 case NL80211_CHAN_WIDTH_160:
330 case NL80211_CHAN_WIDTH_5:
331 case NL80211_CHAN_WIDTH_10:
332 default:
333 WARN_ON_ONCE(1);
334 }
335 switch (ch->chan->band) {
336 case IEEE80211_BAND_2GHZ:
337 ch_inf.band = BRCMU_CHAN_BAND_2G;
338 break;
339 case IEEE80211_BAND_5GHZ:
340 ch_inf.band = BRCMU_CHAN_BAND_5G;
341 break;
342 case IEEE80211_BAND_60GHZ:
343 default:
344 WARN_ON_ONCE(1);
345 }
346 d11inf->encchspec(&ch_inf);
347
348 return ch_inf.chspec;
349 }
350
channel_to_chanspec(struct brcmu_d11inf * d11inf,struct ieee80211_channel * ch)351 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
352 struct ieee80211_channel *ch)
353 {
354 struct brcmu_chan ch_inf;
355
356 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
357 ch_inf.bw = BRCMU_CHAN_BW_20;
358 d11inf->encchspec(&ch_inf);
359
360 return ch_inf.chspec;
361 }
362
363 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
364 * triples, returning a pointer to the substring whose first element
365 * matches tag
366 */
367 const struct brcmf_tlv *
brcmf_parse_tlvs(const void * buf,int buflen,uint key)368 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
369 {
370 const struct brcmf_tlv *elt = buf;
371 int totlen = buflen;
372
373 /* find tagged parameter */
374 while (totlen >= TLV_HDR_LEN) {
375 int len = elt->len;
376
377 /* validate remaining totlen */
378 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
379 return elt;
380
381 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
382 totlen -= (len + TLV_HDR_LEN);
383 }
384
385 return NULL;
386 }
387
388 /* Is any of the tlvs the expected entry? If
389 * not update the tlvs buffer pointer/length.
390 */
391 static bool
brcmf_tlv_has_ie(const u8 * ie,const u8 ** tlvs,u32 * tlvs_len,const u8 * oui,u32 oui_len,u8 type)392 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
393 const u8 *oui, u32 oui_len, u8 type)
394 {
395 /* If the contents match the OUI and the type */
396 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
397 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
398 type == ie[TLV_BODY_OFF + oui_len]) {
399 return true;
400 }
401
402 if (tlvs == NULL)
403 return false;
404 /* point to the next ie */
405 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
406 /* calculate the length of the rest of the buffer */
407 *tlvs_len -= (int)(ie - *tlvs);
408 /* update the pointer to the start of the buffer */
409 *tlvs = ie;
410
411 return false;
412 }
413
414 static struct brcmf_vs_tlv *
brcmf_find_wpaie(const u8 * parse,u32 len)415 brcmf_find_wpaie(const u8 *parse, u32 len)
416 {
417 const struct brcmf_tlv *ie;
418
419 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
420 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
421 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
422 return (struct brcmf_vs_tlv *)ie;
423 }
424 return NULL;
425 }
426
427 static struct brcmf_vs_tlv *
brcmf_find_wpsie(const u8 * parse,u32 len)428 brcmf_find_wpsie(const u8 *parse, u32 len)
429 {
430 const struct brcmf_tlv *ie;
431
432 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
433 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
434 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
435 return (struct brcmf_vs_tlv *)ie;
436 }
437 return NULL;
438 }
439
440
convert_key_from_CPU(struct brcmf_wsec_key * key,struct brcmf_wsec_key_le * key_le)441 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
442 struct brcmf_wsec_key_le *key_le)
443 {
444 key_le->index = cpu_to_le32(key->index);
445 key_le->len = cpu_to_le32(key->len);
446 key_le->algo = cpu_to_le32(key->algo);
447 key_le->flags = cpu_to_le32(key->flags);
448 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
449 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
450 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
451 memcpy(key_le->data, key->data, sizeof(key->data));
452 memcpy(key_le->ea, key->ea, sizeof(key->ea));
453 }
454
455 static int
send_key_to_dongle(struct brcmf_if * ifp,struct brcmf_wsec_key * key)456 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key)
457 {
458 int err;
459 struct brcmf_wsec_key_le key_le;
460
461 convert_key_from_CPU(key, &key_le);
462
463 brcmf_netdev_wait_pend8021x(ifp);
464
465 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le,
466 sizeof(key_le));
467
468 if (err)
469 brcmf_err("wsec_key error (%d)\n", err);
470 return err;
471 }
472
473 static s32
brcmf_configure_arp_offload(struct brcmf_if * ifp,bool enable)474 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
475 {
476 s32 err;
477 u32 mode;
478
479 if (enable)
480 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
481 else
482 mode = 0;
483
484 /* Try to set and enable ARP offload feature, this may fail, then it */
485 /* is simply not supported and err 0 will be returned */
486 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
487 if (err) {
488 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
489 mode, err);
490 err = 0;
491 } else {
492 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
493 if (err) {
494 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
495 enable, err);
496 err = 0;
497 } else
498 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
499 enable, mode);
500 }
501
502 return err;
503 }
504
505 static void
brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev * wdev)506 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
507 {
508 struct brcmf_cfg80211_vif *vif;
509 struct brcmf_if *ifp;
510
511 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
512 ifp = vif->ifp;
513
514 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
515 (wdev->iftype == NL80211_IFTYPE_AP) ||
516 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
517 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
518 ADDR_DIRECT);
519 else
520 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
521 ADDR_INDIRECT);
522 }
523
brcmf_cfg80211_request_ap_if(struct brcmf_if * ifp)524 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
525 {
526 struct brcmf_mbss_ssid_le mbss_ssid_le;
527 int bsscfgidx;
528 int err;
529
530 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
531 bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr);
532 if (bsscfgidx < 0)
533 return bsscfgidx;
534
535 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
536 mbss_ssid_le.SSID_len = cpu_to_le32(5);
537 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
538
539 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
540 sizeof(mbss_ssid_le));
541 if (err < 0)
542 brcmf_err("setting ssid failed %d\n", err);
543
544 return err;
545 }
546
547 /**
548 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
549 *
550 * @wiphy: wiphy device of new interface.
551 * @name: name of the new interface.
552 * @flags: not used.
553 * @params: contains mac address for AP device.
554 */
555 static
brcmf_ap_add_vif(struct wiphy * wiphy,const char * name,u32 * flags,struct vif_params * params)556 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
557 u32 *flags, struct vif_params *params)
558 {
559 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
560 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
561 struct brcmf_cfg80211_vif *vif;
562 int err;
563
564 if (brcmf_cfg80211_vif_event_armed(cfg))
565 return ERR_PTR(-EBUSY);
566
567 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
568
569 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false);
570 if (IS_ERR(vif))
571 return (struct wireless_dev *)vif;
572
573 brcmf_cfg80211_arm_vif_event(cfg, vif);
574
575 err = brcmf_cfg80211_request_ap_if(ifp);
576 if (err) {
577 brcmf_cfg80211_arm_vif_event(cfg, NULL);
578 goto fail;
579 }
580
581 /* wait for firmware event */
582 err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
583 msecs_to_jiffies(1500));
584 brcmf_cfg80211_arm_vif_event(cfg, NULL);
585 if (!err) {
586 brcmf_err("timeout occurred\n");
587 err = -EIO;
588 goto fail;
589 }
590
591 /* interface created in firmware */
592 ifp = vif->ifp;
593 if (!ifp) {
594 brcmf_err("no if pointer provided\n");
595 err = -ENOENT;
596 goto fail;
597 }
598
599 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
600 err = brcmf_net_attach(ifp, true);
601 if (err) {
602 brcmf_err("Registering netdevice failed\n");
603 goto fail;
604 }
605
606 return &ifp->vif->wdev;
607
608 fail:
609 brcmf_free_vif(vif);
610 return ERR_PTR(err);
611 }
612
brcmf_is_apmode(struct brcmf_cfg80211_vif * vif)613 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
614 {
615 enum nl80211_iftype iftype;
616
617 iftype = vif->wdev.iftype;
618 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
619 }
620
brcmf_is_ibssmode(struct brcmf_cfg80211_vif * vif)621 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
622 {
623 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
624 }
625
brcmf_cfg80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,u32 * flags,struct vif_params * params)626 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
627 const char *name,
628 unsigned char name_assign_type,
629 enum nl80211_iftype type,
630 u32 *flags,
631 struct vif_params *params)
632 {
633 struct wireless_dev *wdev;
634
635 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
636 switch (type) {
637 case NL80211_IFTYPE_ADHOC:
638 case NL80211_IFTYPE_STATION:
639 case NL80211_IFTYPE_AP_VLAN:
640 case NL80211_IFTYPE_WDS:
641 case NL80211_IFTYPE_MONITOR:
642 case NL80211_IFTYPE_MESH_POINT:
643 return ERR_PTR(-EOPNOTSUPP);
644 case NL80211_IFTYPE_AP:
645 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
646 if (!IS_ERR(wdev))
647 brcmf_cfg80211_update_proto_addr_mode(wdev);
648 return wdev;
649 case NL80211_IFTYPE_P2P_CLIENT:
650 case NL80211_IFTYPE_P2P_GO:
651 case NL80211_IFTYPE_P2P_DEVICE:
652 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params);
653 if (!IS_ERR(wdev))
654 brcmf_cfg80211_update_proto_addr_mode(wdev);
655 return wdev;
656 case NL80211_IFTYPE_UNSPECIFIED:
657 default:
658 return ERR_PTR(-EINVAL);
659 }
660 }
661
brcmf_scan_config_mpc(struct brcmf_if * ifp,int mpc)662 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
663 {
664 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
665 brcmf_set_mpc(ifp, mpc);
666 }
667
brcmf_set_mpc(struct brcmf_if * ifp,int mpc)668 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
669 {
670 s32 err = 0;
671
672 if (check_vif_up(ifp->vif)) {
673 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
674 if (err) {
675 brcmf_err("fail to set mpc\n");
676 return;
677 }
678 brcmf_dbg(INFO, "MPC : %d\n", mpc);
679 }
680 }
681
brcmf_notify_escan_complete(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,bool aborted,bool fw_abort)682 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
683 struct brcmf_if *ifp, bool aborted,
684 bool fw_abort)
685 {
686 struct brcmf_scan_params_le params_le;
687 struct cfg80211_scan_request *scan_request;
688 s32 err = 0;
689
690 brcmf_dbg(SCAN, "Enter\n");
691
692 /* clear scan request, because the FW abort can cause a second call */
693 /* to this functon and might cause a double cfg80211_scan_done */
694 scan_request = cfg->scan_request;
695 cfg->scan_request = NULL;
696
697 if (timer_pending(&cfg->escan_timeout))
698 del_timer_sync(&cfg->escan_timeout);
699
700 if (fw_abort) {
701 /* Do a scan abort to stop the driver's scan engine */
702 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
703 memset(¶ms_le, 0, sizeof(params_le));
704 eth_broadcast_addr(params_le.bssid);
705 params_le.bss_type = DOT11_BSSTYPE_ANY;
706 params_le.scan_type = 0;
707 params_le.channel_num = cpu_to_le32(1);
708 params_le.nprobes = cpu_to_le32(1);
709 params_le.active_time = cpu_to_le32(-1);
710 params_le.passive_time = cpu_to_le32(-1);
711 params_le.home_time = cpu_to_le32(-1);
712 /* Scan is aborted by setting channel_list[0] to -1 */
713 params_le.channel_list[0] = cpu_to_le16(-1);
714 /* E-Scan (or anyother type) can be aborted by SCAN */
715 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
716 ¶ms_le, sizeof(params_le));
717 if (err)
718 brcmf_err("Scan abort failed\n");
719 }
720
721 brcmf_scan_config_mpc(ifp, 1);
722
723 /*
724 * e-scan can be initiated by scheduled scan
725 * which takes precedence.
726 */
727 if (cfg->sched_escan) {
728 brcmf_dbg(SCAN, "scheduled scan completed\n");
729 cfg->sched_escan = false;
730 if (!aborted)
731 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
732 } else if (scan_request) {
733 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
734 aborted ? "Aborted" : "Done");
735 cfg80211_scan_done(scan_request, aborted);
736 }
737 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
738 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
739
740 return err;
741 }
742
743 static
brcmf_cfg80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)744 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
745 {
746 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
747 struct net_device *ndev = wdev->netdev;
748
749 /* vif event pending in firmware */
750 if (brcmf_cfg80211_vif_event_armed(cfg))
751 return -EBUSY;
752
753 if (ndev) {
754 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
755 cfg->escan_info.ifp == netdev_priv(ndev))
756 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
757 true, true);
758
759 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
760 }
761
762 switch (wdev->iftype) {
763 case NL80211_IFTYPE_ADHOC:
764 case NL80211_IFTYPE_STATION:
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
767 case NL80211_IFTYPE_WDS:
768 case NL80211_IFTYPE_MONITOR:
769 case NL80211_IFTYPE_MESH_POINT:
770 return -EOPNOTSUPP;
771 case NL80211_IFTYPE_P2P_CLIENT:
772 case NL80211_IFTYPE_P2P_GO:
773 case NL80211_IFTYPE_P2P_DEVICE:
774 return brcmf_p2p_del_vif(wiphy, wdev);
775 case NL80211_IFTYPE_UNSPECIFIED:
776 default:
777 return -EINVAL;
778 }
779 return -EOPNOTSUPP;
780 }
781
782 static s32
brcmf_cfg80211_change_iface(struct wiphy * wiphy,struct net_device * ndev,enum nl80211_iftype type,u32 * flags,struct vif_params * params)783 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
784 enum nl80211_iftype type, u32 *flags,
785 struct vif_params *params)
786 {
787 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
788 struct brcmf_if *ifp = netdev_priv(ndev);
789 struct brcmf_cfg80211_vif *vif = ifp->vif;
790 s32 infra = 0;
791 s32 ap = 0;
792 s32 err = 0;
793
794 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
795
796 switch (type) {
797 case NL80211_IFTYPE_MONITOR:
798 case NL80211_IFTYPE_WDS:
799 brcmf_err("type (%d) : currently we do not support this type\n",
800 type);
801 return -EOPNOTSUPP;
802 case NL80211_IFTYPE_ADHOC:
803 infra = 0;
804 break;
805 case NL80211_IFTYPE_STATION:
806 /* Ignore change for p2p IF. Unclear why supplicant does this */
807 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
808 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
809 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
810 /* WAR: It is unexpected to get a change of VIF for P2P
811 * IF, but it happens. The request can not be handled
812 * but returning EPERM causes a crash. Returning 0
813 * without setting ieee80211_ptr->iftype causes trace
814 * (WARN_ON) but it works with wpa_supplicant
815 */
816 return 0;
817 }
818 infra = 1;
819 break;
820 case NL80211_IFTYPE_AP:
821 case NL80211_IFTYPE_P2P_GO:
822 ap = 1;
823 break;
824 default:
825 err = -EINVAL;
826 goto done;
827 }
828
829 if (ap) {
830 if (type == NL80211_IFTYPE_P2P_GO) {
831 brcmf_dbg(INFO, "IF Type = P2P GO\n");
832 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
833 }
834 if (!err) {
835 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
836 brcmf_dbg(INFO, "IF Type = AP\n");
837 }
838 } else {
839 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
840 if (err) {
841 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
842 err = -EAGAIN;
843 goto done;
844 }
845 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
846 "Adhoc" : "Infra");
847 }
848 ndev->ieee80211_ptr->iftype = type;
849
850 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
851
852 done:
853 brcmf_dbg(TRACE, "Exit\n");
854
855 return err;
856 }
857
brcmf_escan_prep(struct brcmf_cfg80211_info * cfg,struct brcmf_scan_params_le * params_le,struct cfg80211_scan_request * request)858 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
859 struct brcmf_scan_params_le *params_le,
860 struct cfg80211_scan_request *request)
861 {
862 u32 n_ssids;
863 u32 n_channels;
864 s32 i;
865 s32 offset;
866 u16 chanspec;
867 char *ptr;
868 struct brcmf_ssid_le ssid_le;
869
870 eth_broadcast_addr(params_le->bssid);
871 params_le->bss_type = DOT11_BSSTYPE_ANY;
872 params_le->scan_type = 0;
873 params_le->channel_num = 0;
874 params_le->nprobes = cpu_to_le32(-1);
875 params_le->active_time = cpu_to_le32(-1);
876 params_le->passive_time = cpu_to_le32(-1);
877 params_le->home_time = cpu_to_le32(-1);
878 memset(¶ms_le->ssid_le, 0, sizeof(params_le->ssid_le));
879
880 /* if request is null exit so it will be all channel broadcast scan */
881 if (!request)
882 return;
883
884 n_ssids = request->n_ssids;
885 n_channels = request->n_channels;
886 /* Copy channel array if applicable */
887 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
888 n_channels);
889 if (n_channels > 0) {
890 for (i = 0; i < n_channels; i++) {
891 chanspec = channel_to_chanspec(&cfg->d11inf,
892 request->channels[i]);
893 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
894 request->channels[i]->hw_value, chanspec);
895 params_le->channel_list[i] = cpu_to_le16(chanspec);
896 }
897 } else {
898 brcmf_dbg(SCAN, "Scanning all channels\n");
899 }
900 /* Copy ssid array if applicable */
901 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
902 if (n_ssids > 0) {
903 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
904 n_channels * sizeof(u16);
905 offset = roundup(offset, sizeof(u32));
906 ptr = (char *)params_le + offset;
907 for (i = 0; i < n_ssids; i++) {
908 memset(&ssid_le, 0, sizeof(ssid_le));
909 ssid_le.SSID_len =
910 cpu_to_le32(request->ssids[i].ssid_len);
911 memcpy(ssid_le.SSID, request->ssids[i].ssid,
912 request->ssids[i].ssid_len);
913 if (!ssid_le.SSID_len)
914 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
915 else
916 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
917 i, ssid_le.SSID, ssid_le.SSID_len);
918 memcpy(ptr, &ssid_le, sizeof(ssid_le));
919 ptr += sizeof(ssid_le);
920 }
921 } else {
922 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
923 if ((request->ssids) && request->ssids->ssid_len) {
924 brcmf_dbg(SCAN, "SSID %s len=%d\n",
925 params_le->ssid_le.SSID,
926 request->ssids->ssid_len);
927 params_le->ssid_le.SSID_len =
928 cpu_to_le32(request->ssids->ssid_len);
929 memcpy(¶ms_le->ssid_le.SSID, request->ssids->ssid,
930 request->ssids->ssid_len);
931 }
932 }
933 /* Adding mask to channel numbers */
934 params_le->channel_num =
935 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
936 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
937 }
938
939 static s32
brcmf_run_escan(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,struct cfg80211_scan_request * request,u16 action)940 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
941 struct cfg80211_scan_request *request, u16 action)
942 {
943 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
944 offsetof(struct brcmf_escan_params_le, params_le);
945 struct brcmf_escan_params_le *params;
946 s32 err = 0;
947
948 brcmf_dbg(SCAN, "E-SCAN START\n");
949
950 if (request != NULL) {
951 /* Allocate space for populating ssids in struct */
952 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
953
954 /* Allocate space for populating ssids in struct */
955 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
956 }
957
958 params = kzalloc(params_size, GFP_KERNEL);
959 if (!params) {
960 err = -ENOMEM;
961 goto exit;
962 }
963 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
964 brcmf_escan_prep(cfg, ¶ms->params_le, request);
965 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
966 params->action = cpu_to_le16(action);
967 params->sync_id = cpu_to_le16(0x1234);
968
969 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
970 if (err) {
971 if (err == -EBUSY)
972 brcmf_dbg(INFO, "system busy : escan canceled\n");
973 else
974 brcmf_err("error (%d)\n", err);
975 }
976
977 kfree(params);
978 exit:
979 return err;
980 }
981
982 static s32
brcmf_do_escan(struct brcmf_cfg80211_info * cfg,struct wiphy * wiphy,struct brcmf_if * ifp,struct cfg80211_scan_request * request)983 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
984 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
985 {
986 s32 err;
987 u32 passive_scan;
988 struct brcmf_scan_results *results;
989 struct escan_info *escan = &cfg->escan_info;
990
991 brcmf_dbg(SCAN, "Enter\n");
992 escan->ifp = ifp;
993 escan->wiphy = wiphy;
994 escan->escan_state = WL_ESCAN_STATE_SCANNING;
995 passive_scan = cfg->active_scan ? 0 : 1;
996 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
997 passive_scan);
998 if (err) {
999 brcmf_err("error (%d)\n", err);
1000 return err;
1001 }
1002 brcmf_scan_config_mpc(ifp, 0);
1003 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1004 results->version = 0;
1005 results->count = 0;
1006 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1007
1008 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
1009 if (err)
1010 brcmf_scan_config_mpc(ifp, 1);
1011 return err;
1012 }
1013
1014 static s32
brcmf_cfg80211_escan(struct wiphy * wiphy,struct brcmf_cfg80211_vif * vif,struct cfg80211_scan_request * request,struct cfg80211_ssid * this_ssid)1015 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1016 struct cfg80211_scan_request *request,
1017 struct cfg80211_ssid *this_ssid)
1018 {
1019 struct brcmf_if *ifp = vif->ifp;
1020 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1021 struct cfg80211_ssid *ssids;
1022 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
1023 u32 passive_scan;
1024 bool escan_req;
1025 bool spec_scan;
1026 s32 err;
1027 u32 SSID_len;
1028
1029 brcmf_dbg(SCAN, "START ESCAN\n");
1030
1031 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1032 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1033 return -EAGAIN;
1034 }
1035 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1036 brcmf_err("Scanning being aborted: status (%lu)\n",
1037 cfg->scan_status);
1038 return -EAGAIN;
1039 }
1040 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1041 brcmf_err("Scanning suppressed: status (%lu)\n",
1042 cfg->scan_status);
1043 return -EAGAIN;
1044 }
1045 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1046 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1047 return -EAGAIN;
1048 }
1049
1050 /* If scan req comes for p2p0, send it over primary I/F */
1051 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1052 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1053
1054 escan_req = false;
1055 if (request) {
1056 /* scan bss */
1057 ssids = request->ssids;
1058 escan_req = true;
1059 } else {
1060 /* scan in ibss */
1061 /* we don't do escan in ibss */
1062 ssids = this_ssid;
1063 }
1064
1065 cfg->scan_request = request;
1066 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1067 if (escan_req) {
1068 cfg->escan_info.run = brcmf_run_escan;
1069 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1070 if (err)
1071 goto scan_out;
1072
1073 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1074 if (err)
1075 goto scan_out;
1076 } else {
1077 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1078 ssids->ssid, ssids->ssid_len);
1079 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
1080 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
1081 sr->ssid_le.SSID_len = cpu_to_le32(0);
1082 spec_scan = false;
1083 if (SSID_len) {
1084 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
1085 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
1086 spec_scan = true;
1087 } else
1088 brcmf_dbg(SCAN, "Broadcast scan\n");
1089
1090 passive_scan = cfg->active_scan ? 0 : 1;
1091 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1092 passive_scan);
1093 if (err) {
1094 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1095 goto scan_out;
1096 }
1097 brcmf_scan_config_mpc(ifp, 0);
1098 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1099 &sr->ssid_le, sizeof(sr->ssid_le));
1100 if (err) {
1101 if (err == -EBUSY)
1102 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1103 sr->ssid_le.SSID);
1104 else
1105 brcmf_err("WLC_SCAN error (%d)\n", err);
1106
1107 brcmf_scan_config_mpc(ifp, 1);
1108 goto scan_out;
1109 }
1110 }
1111
1112 /* Arm scan timeout timer */
1113 mod_timer(&cfg->escan_timeout, jiffies +
1114 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1115
1116 return 0;
1117
1118 scan_out:
1119 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1120 cfg->scan_request = NULL;
1121 return err;
1122 }
1123
1124 static s32
brcmf_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)1125 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1126 {
1127 struct brcmf_cfg80211_vif *vif;
1128 s32 err = 0;
1129
1130 brcmf_dbg(TRACE, "Enter\n");
1131 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1132 if (!check_vif_up(vif))
1133 return -EIO;
1134
1135 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1136
1137 if (err)
1138 brcmf_err("scan error (%d)\n", err);
1139
1140 brcmf_dbg(TRACE, "Exit\n");
1141 return err;
1142 }
1143
brcmf_set_rts(struct net_device * ndev,u32 rts_threshold)1144 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1145 {
1146 s32 err = 0;
1147
1148 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1149 rts_threshold);
1150 if (err)
1151 brcmf_err("Error (%d)\n", err);
1152
1153 return err;
1154 }
1155
brcmf_set_frag(struct net_device * ndev,u32 frag_threshold)1156 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1157 {
1158 s32 err = 0;
1159
1160 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1161 frag_threshold);
1162 if (err)
1163 brcmf_err("Error (%d)\n", err);
1164
1165 return err;
1166 }
1167
brcmf_set_retry(struct net_device * ndev,u32 retry,bool l)1168 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1169 {
1170 s32 err = 0;
1171 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1172
1173 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1174 if (err) {
1175 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1176 return err;
1177 }
1178 return err;
1179 }
1180
brcmf_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)1181 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1182 {
1183 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1184 struct net_device *ndev = cfg_to_ndev(cfg);
1185 struct brcmf_if *ifp = netdev_priv(ndev);
1186 s32 err = 0;
1187
1188 brcmf_dbg(TRACE, "Enter\n");
1189 if (!check_vif_up(ifp->vif))
1190 return -EIO;
1191
1192 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1193 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1194 cfg->conf->rts_threshold = wiphy->rts_threshold;
1195 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1196 if (!err)
1197 goto done;
1198 }
1199 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1200 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1201 cfg->conf->frag_threshold = wiphy->frag_threshold;
1202 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1203 if (!err)
1204 goto done;
1205 }
1206 if (changed & WIPHY_PARAM_RETRY_LONG
1207 && (cfg->conf->retry_long != wiphy->retry_long)) {
1208 cfg->conf->retry_long = wiphy->retry_long;
1209 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1210 if (!err)
1211 goto done;
1212 }
1213 if (changed & WIPHY_PARAM_RETRY_SHORT
1214 && (cfg->conf->retry_short != wiphy->retry_short)) {
1215 cfg->conf->retry_short = wiphy->retry_short;
1216 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1217 if (!err)
1218 goto done;
1219 }
1220
1221 done:
1222 brcmf_dbg(TRACE, "Exit\n");
1223 return err;
1224 }
1225
brcmf_init_prof(struct brcmf_cfg80211_profile * prof)1226 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1227 {
1228 memset(prof, 0, sizeof(*prof));
1229 }
1230
brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg * e)1231 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
1232 {
1233 u16 reason;
1234
1235 switch (e->event_code) {
1236 case BRCMF_E_DEAUTH:
1237 case BRCMF_E_DEAUTH_IND:
1238 case BRCMF_E_DISASSOC_IND:
1239 reason = e->reason;
1240 break;
1241 case BRCMF_E_LINK:
1242 default:
1243 reason = 0;
1244 break;
1245 }
1246 return reason;
1247 }
1248
brcmf_link_down(struct brcmf_cfg80211_vif * vif,u16 reason)1249 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
1250 {
1251 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1252 s32 err = 0;
1253
1254 brcmf_dbg(TRACE, "Enter\n");
1255
1256 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1257 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1258 err = brcmf_fil_cmd_data_set(vif->ifp,
1259 BRCMF_C_DISASSOC, NULL, 0);
1260 if (err) {
1261 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1262 }
1263 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1264 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
1265 GFP_KERNEL);
1266
1267 }
1268 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1269 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1270 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1271 brcmf_dbg(TRACE, "Exit\n");
1272 }
1273
1274 static s32
brcmf_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_ibss_params * params)1275 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1276 struct cfg80211_ibss_params *params)
1277 {
1278 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1279 struct brcmf_if *ifp = netdev_priv(ndev);
1280 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1281 struct brcmf_join_params join_params;
1282 size_t join_params_size = 0;
1283 s32 err = 0;
1284 s32 wsec = 0;
1285 s32 bcnprd;
1286 u16 chanspec;
1287
1288 brcmf_dbg(TRACE, "Enter\n");
1289 if (!check_vif_up(ifp->vif))
1290 return -EIO;
1291
1292 if (params->ssid)
1293 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1294 else {
1295 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1296 return -EOPNOTSUPP;
1297 }
1298
1299 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1300
1301 if (params->bssid)
1302 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1303 else
1304 brcmf_dbg(CONN, "No BSSID specified\n");
1305
1306 if (params->chandef.chan)
1307 brcmf_dbg(CONN, "channel: %d\n",
1308 params->chandef.chan->center_freq);
1309 else
1310 brcmf_dbg(CONN, "no channel specified\n");
1311
1312 if (params->channel_fixed)
1313 brcmf_dbg(CONN, "fixed channel required\n");
1314 else
1315 brcmf_dbg(CONN, "no fixed channel required\n");
1316
1317 if (params->ie && params->ie_len)
1318 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1319 else
1320 brcmf_dbg(CONN, "no ie specified\n");
1321
1322 if (params->beacon_interval)
1323 brcmf_dbg(CONN, "beacon interval: %d\n",
1324 params->beacon_interval);
1325 else
1326 brcmf_dbg(CONN, "no beacon interval specified\n");
1327
1328 if (params->basic_rates)
1329 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1330 else
1331 brcmf_dbg(CONN, "no basic rates specified\n");
1332
1333 if (params->privacy)
1334 brcmf_dbg(CONN, "privacy required\n");
1335 else
1336 brcmf_dbg(CONN, "no privacy required\n");
1337
1338 /* Configure Privacy for starter */
1339 if (params->privacy)
1340 wsec |= WEP_ENABLED;
1341
1342 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1343 if (err) {
1344 brcmf_err("wsec failed (%d)\n", err);
1345 goto done;
1346 }
1347
1348 /* Configure Beacon Interval for starter */
1349 if (params->beacon_interval)
1350 bcnprd = params->beacon_interval;
1351 else
1352 bcnprd = 100;
1353
1354 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1355 if (err) {
1356 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1357 goto done;
1358 }
1359
1360 /* Configure required join parameter */
1361 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1362
1363 /* SSID */
1364 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1365 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1366 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1367 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1368 join_params_size = sizeof(join_params.ssid_le);
1369
1370 /* BSSID */
1371 if (params->bssid) {
1372 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1373 join_params_size = sizeof(join_params.ssid_le) +
1374 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1375 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1376 } else {
1377 eth_broadcast_addr(join_params.params_le.bssid);
1378 eth_zero_addr(profile->bssid);
1379 }
1380
1381 /* Channel */
1382 if (params->chandef.chan) {
1383 u32 target_channel;
1384
1385 cfg->channel =
1386 ieee80211_frequency_to_channel(
1387 params->chandef.chan->center_freq);
1388 if (params->channel_fixed) {
1389 /* adding chanspec */
1390 chanspec = chandef_to_chanspec(&cfg->d11inf,
1391 ¶ms->chandef);
1392 join_params.params_le.chanspec_list[0] =
1393 cpu_to_le16(chanspec);
1394 join_params.params_le.chanspec_num = cpu_to_le32(1);
1395 join_params_size += sizeof(join_params.params_le);
1396 }
1397
1398 /* set channel for starter */
1399 target_channel = cfg->channel;
1400 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1401 target_channel);
1402 if (err) {
1403 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1404 goto done;
1405 }
1406 } else
1407 cfg->channel = 0;
1408
1409 cfg->ibss_starter = false;
1410
1411
1412 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1413 &join_params, join_params_size);
1414 if (err) {
1415 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1416 goto done;
1417 }
1418
1419 done:
1420 if (err)
1421 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1422 brcmf_dbg(TRACE, "Exit\n");
1423 return err;
1424 }
1425
1426 static s32
brcmf_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * ndev)1427 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1428 {
1429 struct brcmf_if *ifp = netdev_priv(ndev);
1430
1431 brcmf_dbg(TRACE, "Enter\n");
1432 if (!check_vif_up(ifp->vif))
1433 return -EIO;
1434
1435 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
1436
1437 brcmf_dbg(TRACE, "Exit\n");
1438
1439 return 0;
1440 }
1441
brcmf_set_wpa_version(struct net_device * ndev,struct cfg80211_connect_params * sme)1442 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1443 struct cfg80211_connect_params *sme)
1444 {
1445 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1446 struct brcmf_cfg80211_security *sec;
1447 s32 val = 0;
1448 s32 err = 0;
1449
1450 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1451 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1452 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1453 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1454 else
1455 val = WPA_AUTH_DISABLED;
1456 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1457 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1458 if (err) {
1459 brcmf_err("set wpa_auth failed (%d)\n", err);
1460 return err;
1461 }
1462 sec = &profile->sec;
1463 sec->wpa_versions = sme->crypto.wpa_versions;
1464 return err;
1465 }
1466
brcmf_set_auth_type(struct net_device * ndev,struct cfg80211_connect_params * sme)1467 static s32 brcmf_set_auth_type(struct net_device *ndev,
1468 struct cfg80211_connect_params *sme)
1469 {
1470 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1471 struct brcmf_cfg80211_security *sec;
1472 s32 val = 0;
1473 s32 err = 0;
1474
1475 switch (sme->auth_type) {
1476 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1477 val = 0;
1478 brcmf_dbg(CONN, "open system\n");
1479 break;
1480 case NL80211_AUTHTYPE_SHARED_KEY:
1481 val = 1;
1482 brcmf_dbg(CONN, "shared key\n");
1483 break;
1484 case NL80211_AUTHTYPE_AUTOMATIC:
1485 val = 2;
1486 brcmf_dbg(CONN, "automatic\n");
1487 break;
1488 case NL80211_AUTHTYPE_NETWORK_EAP:
1489 brcmf_dbg(CONN, "network eap\n");
1490 default:
1491 val = 2;
1492 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1493 break;
1494 }
1495
1496 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1497 if (err) {
1498 brcmf_err("set auth failed (%d)\n", err);
1499 return err;
1500 }
1501 sec = &profile->sec;
1502 sec->auth_type = sme->auth_type;
1503 return err;
1504 }
1505
1506 static s32
brcmf_set_wsec_mode(struct net_device * ndev,struct cfg80211_connect_params * sme,bool mfp)1507 brcmf_set_wsec_mode(struct net_device *ndev,
1508 struct cfg80211_connect_params *sme, bool mfp)
1509 {
1510 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1511 struct brcmf_cfg80211_security *sec;
1512 s32 pval = 0;
1513 s32 gval = 0;
1514 s32 wsec;
1515 s32 err = 0;
1516
1517 if (sme->crypto.n_ciphers_pairwise) {
1518 switch (sme->crypto.ciphers_pairwise[0]) {
1519 case WLAN_CIPHER_SUITE_WEP40:
1520 case WLAN_CIPHER_SUITE_WEP104:
1521 pval = WEP_ENABLED;
1522 break;
1523 case WLAN_CIPHER_SUITE_TKIP:
1524 pval = TKIP_ENABLED;
1525 break;
1526 case WLAN_CIPHER_SUITE_CCMP:
1527 pval = AES_ENABLED;
1528 break;
1529 case WLAN_CIPHER_SUITE_AES_CMAC:
1530 pval = AES_ENABLED;
1531 break;
1532 default:
1533 brcmf_err("invalid cipher pairwise (%d)\n",
1534 sme->crypto.ciphers_pairwise[0]);
1535 return -EINVAL;
1536 }
1537 }
1538 if (sme->crypto.cipher_group) {
1539 switch (sme->crypto.cipher_group) {
1540 case WLAN_CIPHER_SUITE_WEP40:
1541 case WLAN_CIPHER_SUITE_WEP104:
1542 gval = WEP_ENABLED;
1543 break;
1544 case WLAN_CIPHER_SUITE_TKIP:
1545 gval = TKIP_ENABLED;
1546 break;
1547 case WLAN_CIPHER_SUITE_CCMP:
1548 gval = AES_ENABLED;
1549 break;
1550 case WLAN_CIPHER_SUITE_AES_CMAC:
1551 gval = AES_ENABLED;
1552 break;
1553 default:
1554 brcmf_err("invalid cipher group (%d)\n",
1555 sme->crypto.cipher_group);
1556 return -EINVAL;
1557 }
1558 }
1559
1560 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1561 /* In case of privacy, but no security and WPS then simulate */
1562 /* setting AES. WPS-2.0 allows no security */
1563 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1564 sme->privacy)
1565 pval = AES_ENABLED;
1566
1567 if (mfp)
1568 wsec = pval | gval | MFP_CAPABLE;
1569 else
1570 wsec = pval | gval;
1571 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1572 if (err) {
1573 brcmf_err("error (%d)\n", err);
1574 return err;
1575 }
1576
1577 sec = &profile->sec;
1578 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1579 sec->cipher_group = sme->crypto.cipher_group;
1580
1581 return err;
1582 }
1583
1584 static s32
brcmf_set_key_mgmt(struct net_device * ndev,struct cfg80211_connect_params * sme)1585 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1586 {
1587 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1588 struct brcmf_cfg80211_security *sec;
1589 s32 val = 0;
1590 s32 err = 0;
1591
1592 if (sme->crypto.n_akm_suites) {
1593 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1594 "wpa_auth", &val);
1595 if (err) {
1596 brcmf_err("could not get wpa_auth (%d)\n", err);
1597 return err;
1598 }
1599 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1600 switch (sme->crypto.akm_suites[0]) {
1601 case WLAN_AKM_SUITE_8021X:
1602 val = WPA_AUTH_UNSPECIFIED;
1603 break;
1604 case WLAN_AKM_SUITE_PSK:
1605 val = WPA_AUTH_PSK;
1606 break;
1607 default:
1608 brcmf_err("invalid cipher group (%d)\n",
1609 sme->crypto.cipher_group);
1610 return -EINVAL;
1611 }
1612 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1613 switch (sme->crypto.akm_suites[0]) {
1614 case WLAN_AKM_SUITE_8021X:
1615 val = WPA2_AUTH_UNSPECIFIED;
1616 break;
1617 case WLAN_AKM_SUITE_PSK:
1618 val = WPA2_AUTH_PSK;
1619 break;
1620 default:
1621 brcmf_err("invalid cipher group (%d)\n",
1622 sme->crypto.cipher_group);
1623 return -EINVAL;
1624 }
1625 }
1626
1627 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1628 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1629 "wpa_auth", val);
1630 if (err) {
1631 brcmf_err("could not set wpa_auth (%d)\n", err);
1632 return err;
1633 }
1634 }
1635 sec = &profile->sec;
1636 sec->wpa_auth = sme->crypto.akm_suites[0];
1637
1638 return err;
1639 }
1640
1641 static s32
brcmf_set_sharedkey(struct net_device * ndev,struct cfg80211_connect_params * sme)1642 brcmf_set_sharedkey(struct net_device *ndev,
1643 struct cfg80211_connect_params *sme)
1644 {
1645 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1646 struct brcmf_cfg80211_security *sec;
1647 struct brcmf_wsec_key key;
1648 s32 val;
1649 s32 err = 0;
1650
1651 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1652
1653 if (sme->key_len == 0)
1654 return 0;
1655
1656 sec = &profile->sec;
1657 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1658 sec->wpa_versions, sec->cipher_pairwise);
1659
1660 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1661 return 0;
1662
1663 if (!(sec->cipher_pairwise &
1664 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1665 return 0;
1666
1667 memset(&key, 0, sizeof(key));
1668 key.len = (u32) sme->key_len;
1669 key.index = (u32) sme->key_idx;
1670 if (key.len > sizeof(key.data)) {
1671 brcmf_err("Too long key length (%u)\n", key.len);
1672 return -EINVAL;
1673 }
1674 memcpy(key.data, sme->key, key.len);
1675 key.flags = BRCMF_PRIMARY_KEY;
1676 switch (sec->cipher_pairwise) {
1677 case WLAN_CIPHER_SUITE_WEP40:
1678 key.algo = CRYPTO_ALGO_WEP1;
1679 break;
1680 case WLAN_CIPHER_SUITE_WEP104:
1681 key.algo = CRYPTO_ALGO_WEP128;
1682 break;
1683 default:
1684 brcmf_err("Invalid algorithm (%d)\n",
1685 sme->crypto.ciphers_pairwise[0]);
1686 return -EINVAL;
1687 }
1688 /* Set the new key/index */
1689 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1690 key.len, key.index, key.algo);
1691 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1692 err = send_key_to_dongle(netdev_priv(ndev), &key);
1693 if (err)
1694 return err;
1695
1696 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1697 brcmf_dbg(CONN, "set auth_type to shared key\n");
1698 val = WL_AUTH_SHARED_KEY; /* shared key */
1699 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1700 if (err)
1701 brcmf_err("set auth failed (%d)\n", err);
1702 }
1703 return err;
1704 }
1705
1706 static
brcmf_war_auth_type(struct brcmf_if * ifp,enum nl80211_auth_type type)1707 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1708 enum nl80211_auth_type type)
1709 {
1710 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1711 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1712 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1713 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1714 }
1715 return type;
1716 }
1717
1718 static s32
brcmf_cfg80211_connect(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_connect_params * sme)1719 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1720 struct cfg80211_connect_params *sme)
1721 {
1722 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1723 struct brcmf_if *ifp = netdev_priv(ndev);
1724 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1725 struct ieee80211_channel *chan = sme->channel;
1726 struct brcmf_join_params join_params;
1727 size_t join_params_size;
1728 const struct brcmf_tlv *rsn_ie;
1729 const struct brcmf_vs_tlv *wpa_ie;
1730 const void *ie;
1731 u32 ie_len;
1732 struct brcmf_ext_join_params_le *ext_join_params;
1733 u16 chanspec;
1734 s32 err = 0;
1735
1736 brcmf_dbg(TRACE, "Enter\n");
1737 if (!check_vif_up(ifp->vif))
1738 return -EIO;
1739
1740 if (!sme->ssid) {
1741 brcmf_err("Invalid ssid\n");
1742 return -EOPNOTSUPP;
1743 }
1744
1745 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1746 /* A normal (non P2P) connection request setup. */
1747 ie = NULL;
1748 ie_len = 0;
1749 /* find the WPA_IE */
1750 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1751 if (wpa_ie) {
1752 ie = wpa_ie;
1753 ie_len = wpa_ie->len + TLV_HDR_LEN;
1754 } else {
1755 /* find the RSN_IE */
1756 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1757 sme->ie_len,
1758 WLAN_EID_RSN);
1759 if (rsn_ie) {
1760 ie = rsn_ie;
1761 ie_len = rsn_ie->len + TLV_HDR_LEN;
1762 }
1763 }
1764 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1765 }
1766
1767 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1768 sme->ie, sme->ie_len);
1769 if (err)
1770 brcmf_err("Set Assoc REQ IE Failed\n");
1771 else
1772 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1773
1774 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1775
1776 if (chan) {
1777 cfg->channel =
1778 ieee80211_frequency_to_channel(chan->center_freq);
1779 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1780 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1781 cfg->channel, chan->center_freq, chanspec);
1782 } else {
1783 cfg->channel = 0;
1784 chanspec = 0;
1785 }
1786
1787 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1788
1789 err = brcmf_set_wpa_version(ndev, sme);
1790 if (err) {
1791 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1792 goto done;
1793 }
1794
1795 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1796 err = brcmf_set_auth_type(ndev, sme);
1797 if (err) {
1798 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1799 goto done;
1800 }
1801
1802 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1803 if (err) {
1804 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1805 goto done;
1806 }
1807
1808 err = brcmf_set_key_mgmt(ndev, sme);
1809 if (err) {
1810 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1811 goto done;
1812 }
1813
1814 err = brcmf_set_sharedkey(ndev, sme);
1815 if (err) {
1816 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1817 goto done;
1818 }
1819
1820 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1821 (u32)sme->ssid_len);
1822 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1823 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1824 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1825 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1826 profile->ssid.SSID_len);
1827 }
1828
1829 /* Join with specific BSSID and cached SSID
1830 * If SSID is zero join based on BSSID only
1831 */
1832 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1833 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1834 if (cfg->channel)
1835 join_params_size += sizeof(u16);
1836 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1837 if (ext_join_params == NULL) {
1838 err = -ENOMEM;
1839 goto done;
1840 }
1841 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1842 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1843 profile->ssid.SSID_len);
1844
1845 /* Set up join scan parameters */
1846 ext_join_params->scan_le.scan_type = -1;
1847 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1848
1849 if (sme->bssid)
1850 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1851 else
1852 eth_broadcast_addr(ext_join_params->assoc_le.bssid);
1853
1854 if (cfg->channel) {
1855 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1856
1857 ext_join_params->assoc_le.chanspec_list[0] =
1858 cpu_to_le16(chanspec);
1859 /* Increase dwell time to receive probe response or detect
1860 * beacon from target AP at a noisy air only during connect
1861 * command.
1862 */
1863 ext_join_params->scan_le.active_time =
1864 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1865 ext_join_params->scan_le.passive_time =
1866 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1867 /* To sync with presence period of VSDB GO send probe request
1868 * more frequently. Probe request will be stopped when it gets
1869 * probe response from target AP/GO.
1870 */
1871 ext_join_params->scan_le.nprobes =
1872 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1873 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1874 } else {
1875 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1876 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1877 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1878 }
1879
1880 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1881 join_params_size);
1882 kfree(ext_join_params);
1883 if (!err)
1884 /* This is it. join command worked, we are done */
1885 goto done;
1886
1887 /* join command failed, fallback to set ssid */
1888 memset(&join_params, 0, sizeof(join_params));
1889 join_params_size = sizeof(join_params.ssid_le);
1890
1891 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1892 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1893
1894 if (sme->bssid)
1895 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1896 else
1897 eth_broadcast_addr(join_params.params_le.bssid);
1898
1899 if (cfg->channel) {
1900 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1901 join_params.params_le.chanspec_num = cpu_to_le32(1);
1902 join_params_size += sizeof(join_params.params_le);
1903 }
1904 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1905 &join_params, join_params_size);
1906 if (err)
1907 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1908
1909 done:
1910 if (err)
1911 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1912 brcmf_dbg(TRACE, "Exit\n");
1913 return err;
1914 }
1915
1916 static s32
brcmf_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * ndev,u16 reason_code)1917 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1918 u16 reason_code)
1919 {
1920 struct brcmf_if *ifp = netdev_priv(ndev);
1921 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1922 struct brcmf_scb_val_le scbval;
1923 s32 err = 0;
1924
1925 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1926 if (!check_vif_up(ifp->vif))
1927 return -EIO;
1928
1929 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1930 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1931 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1932
1933 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1934 scbval.val = cpu_to_le32(reason_code);
1935 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1936 &scbval, sizeof(scbval));
1937 if (err)
1938 brcmf_err("error (%d)\n", err);
1939
1940 brcmf_dbg(TRACE, "Exit\n");
1941 return err;
1942 }
1943
1944 static s32
brcmf_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,s32 mbm)1945 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1946 enum nl80211_tx_power_setting type, s32 mbm)
1947 {
1948
1949 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1950 struct net_device *ndev = cfg_to_ndev(cfg);
1951 struct brcmf_if *ifp = netdev_priv(ndev);
1952 u16 txpwrmw;
1953 s32 err = 0;
1954 s32 disable = 0;
1955 s32 dbm = MBM_TO_DBM(mbm);
1956
1957 brcmf_dbg(TRACE, "Enter\n");
1958 if (!check_vif_up(ifp->vif))
1959 return -EIO;
1960
1961 switch (type) {
1962 case NL80211_TX_POWER_AUTOMATIC:
1963 break;
1964 case NL80211_TX_POWER_LIMITED:
1965 case NL80211_TX_POWER_FIXED:
1966 if (dbm < 0) {
1967 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1968 err = -EINVAL;
1969 goto done;
1970 }
1971 break;
1972 }
1973 /* Make sure radio is off or on as far as software is concerned */
1974 disable = WL_RADIO_SW_DISABLE << 16;
1975 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1976 if (err)
1977 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1978
1979 if (dbm > 0xffff)
1980 txpwrmw = 0xffff;
1981 else
1982 txpwrmw = (u16) dbm;
1983 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1984 (s32)brcmf_mw_to_qdbm(txpwrmw));
1985 if (err)
1986 brcmf_err("qtxpower error (%d)\n", err);
1987 cfg->conf->tx_power = dbm;
1988
1989 done:
1990 brcmf_dbg(TRACE, "Exit\n");
1991 return err;
1992 }
1993
brcmf_cfg80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,s32 * dbm)1994 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1995 struct wireless_dev *wdev,
1996 s32 *dbm)
1997 {
1998 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1999 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
2000 s32 txpwrdbm;
2001 u8 result;
2002 s32 err = 0;
2003
2004 brcmf_dbg(TRACE, "Enter\n");
2005 if (!check_vif_up(ifp->vif))
2006 return -EIO;
2007
2008 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
2009 if (err) {
2010 brcmf_err("error (%d)\n", err);
2011 goto done;
2012 }
2013
2014 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
2015 *dbm = (s32) brcmf_qdbm_to_mw(result);
2016
2017 done:
2018 brcmf_dbg(TRACE, "Exit\n");
2019 return err;
2020 }
2021
2022 static s32
brcmf_cfg80211_config_default_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool unicast,bool multicast)2023 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2024 u8 key_idx, bool unicast, bool multicast)
2025 {
2026 struct brcmf_if *ifp = netdev_priv(ndev);
2027 u32 index;
2028 u32 wsec;
2029 s32 err = 0;
2030
2031 brcmf_dbg(TRACE, "Enter\n");
2032 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2033 if (!check_vif_up(ifp->vif))
2034 return -EIO;
2035
2036 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2037 if (err) {
2038 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2039 goto done;
2040 }
2041
2042 if (wsec & WEP_ENABLED) {
2043 /* Just select a new current key */
2044 index = key_idx;
2045 err = brcmf_fil_cmd_int_set(ifp,
2046 BRCMF_C_SET_KEY_PRIMARY, index);
2047 if (err)
2048 brcmf_err("error (%d)\n", err);
2049 }
2050 done:
2051 brcmf_dbg(TRACE, "Exit\n");
2052 return err;
2053 }
2054
2055 static s32
brcmf_add_keyext(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,const u8 * mac_addr,struct key_params * params)2056 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
2057 u8 key_idx, const u8 *mac_addr, struct key_params *params)
2058 {
2059 struct brcmf_if *ifp = netdev_priv(ndev);
2060 struct brcmf_wsec_key key;
2061 s32 err = 0;
2062 u8 keybuf[8];
2063
2064 memset(&key, 0, sizeof(key));
2065 key.index = (u32) key_idx;
2066 /* Instead of bcast for ea address for default wep keys,
2067 driver needs it to be Null */
2068 if (!is_multicast_ether_addr(mac_addr))
2069 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
2070 key.len = (u32) params->key_len;
2071 /* check for key index change */
2072 if (key.len == 0) {
2073 /* key delete */
2074 err = send_key_to_dongle(ifp, &key);
2075 if (err)
2076 brcmf_err("key delete error (%d)\n", err);
2077 } else {
2078 if (key.len > sizeof(key.data)) {
2079 brcmf_err("Invalid key length (%d)\n", key.len);
2080 return -EINVAL;
2081 }
2082
2083 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
2084 memcpy(key.data, params->key, key.len);
2085
2086 if (!brcmf_is_apmode(ifp->vif) &&
2087 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
2088 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2089 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2090 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2091 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2092 }
2093
2094 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
2095 if (params->seq && params->seq_len == 6) {
2096 /* rx iv */
2097 u8 *ivptr;
2098 ivptr = (u8 *) params->seq;
2099 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
2100 (ivptr[3] << 8) | ivptr[2];
2101 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
2102 key.iv_initialized = true;
2103 }
2104
2105 switch (params->cipher) {
2106 case WLAN_CIPHER_SUITE_WEP40:
2107 key.algo = CRYPTO_ALGO_WEP1;
2108 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2109 break;
2110 case WLAN_CIPHER_SUITE_WEP104:
2111 key.algo = CRYPTO_ALGO_WEP128;
2112 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2113 break;
2114 case WLAN_CIPHER_SUITE_TKIP:
2115 key.algo = CRYPTO_ALGO_TKIP;
2116 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2117 break;
2118 case WLAN_CIPHER_SUITE_AES_CMAC:
2119 key.algo = CRYPTO_ALGO_AES_CCM;
2120 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2121 break;
2122 case WLAN_CIPHER_SUITE_CCMP:
2123 key.algo = CRYPTO_ALGO_AES_CCM;
2124 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2125 break;
2126 default:
2127 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2128 return -EINVAL;
2129 }
2130 err = send_key_to_dongle(ifp, &key);
2131 if (err)
2132 brcmf_err("wsec_key error (%d)\n", err);
2133 }
2134 return err;
2135 }
2136
2137 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)2138 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2139 u8 key_idx, bool pairwise, const u8 *mac_addr,
2140 struct key_params *params)
2141 {
2142 struct brcmf_if *ifp = netdev_priv(ndev);
2143 struct brcmf_wsec_key *key;
2144 s32 val;
2145 s32 wsec;
2146 s32 err = 0;
2147 u8 keybuf[8];
2148
2149 brcmf_dbg(TRACE, "Enter\n");
2150 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2151 if (!check_vif_up(ifp->vif))
2152 return -EIO;
2153
2154 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2155 /* we ignore this key index in this case */
2156 brcmf_err("invalid key index (%d)\n", key_idx);
2157 return -EINVAL;
2158 }
2159
2160 if (mac_addr &&
2161 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2162 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2163 brcmf_dbg(TRACE, "Exit");
2164 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2165 }
2166
2167 key = &ifp->vif->profile.key[key_idx];
2168 memset(key, 0, sizeof(*key));
2169
2170 if (params->key_len > sizeof(key->data)) {
2171 brcmf_err("Too long key length (%u)\n", params->key_len);
2172 err = -EINVAL;
2173 goto done;
2174 }
2175 key->len = params->key_len;
2176 key->index = key_idx;
2177
2178 memcpy(key->data, params->key, key->len);
2179
2180 key->flags = BRCMF_PRIMARY_KEY;
2181 switch (params->cipher) {
2182 case WLAN_CIPHER_SUITE_WEP40:
2183 key->algo = CRYPTO_ALGO_WEP1;
2184 val = WEP_ENABLED;
2185 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2186 break;
2187 case WLAN_CIPHER_SUITE_WEP104:
2188 key->algo = CRYPTO_ALGO_WEP128;
2189 val = WEP_ENABLED;
2190 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2191 break;
2192 case WLAN_CIPHER_SUITE_TKIP:
2193 if (!brcmf_is_apmode(ifp->vif)) {
2194 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2195 memcpy(keybuf, &key->data[24], sizeof(keybuf));
2196 memcpy(&key->data[24], &key->data[16], sizeof(keybuf));
2197 memcpy(&key->data[16], keybuf, sizeof(keybuf));
2198 }
2199 key->algo = CRYPTO_ALGO_TKIP;
2200 val = TKIP_ENABLED;
2201 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2202 break;
2203 case WLAN_CIPHER_SUITE_AES_CMAC:
2204 key->algo = CRYPTO_ALGO_AES_CCM;
2205 val = AES_ENABLED;
2206 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2207 break;
2208 case WLAN_CIPHER_SUITE_CCMP:
2209 key->algo = CRYPTO_ALGO_AES_CCM;
2210 val = AES_ENABLED;
2211 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2212 break;
2213 default:
2214 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2215 err = -EINVAL;
2216 goto done;
2217 }
2218
2219 err = send_key_to_dongle(ifp, key);
2220 if (err)
2221 goto done;
2222
2223 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2224 if (err) {
2225 brcmf_err("get wsec error (%d)\n", err);
2226 goto done;
2227 }
2228 wsec |= val;
2229 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2230 if (err) {
2231 brcmf_err("set wsec error (%d)\n", err);
2232 goto done;
2233 }
2234
2235 done:
2236 brcmf_dbg(TRACE, "Exit\n");
2237 return err;
2238 }
2239
2240 static s32
brcmf_cfg80211_del_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx,bool pairwise,const u8 * mac_addr)2241 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2242 u8 key_idx, bool pairwise, const u8 *mac_addr)
2243 {
2244 struct brcmf_if *ifp = netdev_priv(ndev);
2245 struct brcmf_wsec_key key;
2246 s32 err = 0;
2247
2248 brcmf_dbg(TRACE, "Enter\n");
2249 if (!check_vif_up(ifp->vif))
2250 return -EIO;
2251
2252 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) {
2253 /* we ignore this key index in this case */
2254 return -EINVAL;
2255 }
2256
2257 memset(&key, 0, sizeof(key));
2258
2259 key.index = (u32) key_idx;
2260 key.flags = BRCMF_PRIMARY_KEY;
2261 key.algo = CRYPTO_ALGO_OFF;
2262
2263 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2264
2265 /* Set the new key/index */
2266 err = send_key_to_dongle(ifp, &key);
2267
2268 brcmf_dbg(TRACE, "Exit\n");
2269 return err;
2270 }
2271
2272 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))2273 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2274 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2275 void (*callback) (void *cookie, struct key_params * params))
2276 {
2277 struct key_params params;
2278 struct brcmf_if *ifp = netdev_priv(ndev);
2279 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2280 struct brcmf_cfg80211_security *sec;
2281 s32 wsec;
2282 s32 err = 0;
2283
2284 brcmf_dbg(TRACE, "Enter\n");
2285 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2286 if (!check_vif_up(ifp->vif))
2287 return -EIO;
2288
2289 memset(¶ms, 0, sizeof(params));
2290
2291 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2292 if (err) {
2293 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2294 /* Ignore this error, may happen during DISASSOC */
2295 err = -EAGAIN;
2296 goto done;
2297 }
2298 if (wsec & WEP_ENABLED) {
2299 sec = &profile->sec;
2300 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2301 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2302 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2303 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2304 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2305 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2306 }
2307 } else if (wsec & TKIP_ENABLED) {
2308 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2309 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2310 } else if (wsec & AES_ENABLED) {
2311 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2312 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2313 } else {
2314 brcmf_err("Invalid algo (0x%x)\n", wsec);
2315 err = -EINVAL;
2316 goto done;
2317 }
2318 callback(cookie, ¶ms);
2319
2320 done:
2321 brcmf_dbg(TRACE, "Exit\n");
2322 return err;
2323 }
2324
2325 static s32
brcmf_cfg80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_idx)2326 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2327 struct net_device *ndev, u8 key_idx)
2328 {
2329 brcmf_dbg(INFO, "Not supported\n");
2330
2331 return -EOPNOTSUPP;
2332 }
2333
2334 static void
brcmf_cfg80211_reconfigure_wep(struct brcmf_if * ifp)2335 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp)
2336 {
2337 s32 err;
2338 u8 key_idx;
2339 struct brcmf_wsec_key *key;
2340 s32 wsec;
2341
2342 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) {
2343 key = &ifp->vif->profile.key[key_idx];
2344 if ((key->algo == CRYPTO_ALGO_WEP1) ||
2345 (key->algo == CRYPTO_ALGO_WEP128))
2346 break;
2347 }
2348 if (key_idx == BRCMF_MAX_DEFAULT_KEYS)
2349 return;
2350
2351 err = send_key_to_dongle(ifp, key);
2352 if (err) {
2353 brcmf_err("Setting WEP key failed (%d)\n", err);
2354 return;
2355 }
2356 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2357 if (err) {
2358 brcmf_err("get wsec error (%d)\n", err);
2359 return;
2360 }
2361 wsec |= WEP_ENABLED;
2362 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2363 if (err)
2364 brcmf_err("set wsec error (%d)\n", err);
2365 }
2366
2367 static s32
brcmf_cfg80211_get_station(struct wiphy * wiphy,struct net_device * ndev,const u8 * mac,struct station_info * sinfo)2368 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2369 const u8 *mac, struct station_info *sinfo)
2370 {
2371 struct brcmf_if *ifp = netdev_priv(ndev);
2372 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2373 struct brcmf_scb_val_le scb_val;
2374 int rssi;
2375 s32 rate;
2376 s32 err = 0;
2377 u8 *bssid = profile->bssid;
2378 struct brcmf_sta_info_le sta_info_le;
2379 u32 beacon_period;
2380 u32 dtim_period;
2381
2382 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2383 if (!check_vif_up(ifp->vif))
2384 return -EIO;
2385
2386 if (brcmf_is_apmode(ifp->vif)) {
2387 memcpy(&sta_info_le, mac, ETH_ALEN);
2388 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2389 &sta_info_le,
2390 sizeof(sta_info_le));
2391 if (err < 0) {
2392 brcmf_err("GET STA INFO failed, %d\n", err);
2393 goto done;
2394 }
2395 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME);
2396 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2397 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2398 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME);
2399 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2400 }
2401 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2402 sinfo->inactive_time, sinfo->connected_time);
2403 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2404 if (memcmp(mac, bssid, ETH_ALEN)) {
2405 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2406 mac, bssid);
2407 err = -ENOENT;
2408 goto done;
2409 }
2410 /* Report the current tx rate */
2411 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2412 if (err) {
2413 brcmf_err("Could not get rate (%d)\n", err);
2414 goto done;
2415 } else {
2416 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2417 sinfo->txrate.legacy = rate * 5;
2418 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2419 }
2420
2421 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2422 &ifp->vif->sme_state)) {
2423 memset(&scb_val, 0, sizeof(scb_val));
2424 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2425 &scb_val, sizeof(scb_val));
2426 if (err) {
2427 brcmf_err("Could not get rssi (%d)\n", err);
2428 goto done;
2429 } else {
2430 rssi = le32_to_cpu(scb_val.val);
2431 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2432 sinfo->signal = rssi;
2433 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2434 }
2435 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2436 &beacon_period);
2437 if (err) {
2438 brcmf_err("Could not get beacon period (%d)\n",
2439 err);
2440 goto done;
2441 } else {
2442 sinfo->bss_param.beacon_interval =
2443 beacon_period;
2444 brcmf_dbg(CONN, "Beacon peroid %d\n",
2445 beacon_period);
2446 }
2447 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2448 &dtim_period);
2449 if (err) {
2450 brcmf_err("Could not get DTIM period (%d)\n",
2451 err);
2452 goto done;
2453 } else {
2454 sinfo->bss_param.dtim_period = dtim_period;
2455 brcmf_dbg(CONN, "DTIM peroid %d\n",
2456 dtim_period);
2457 }
2458 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
2459 }
2460 } else
2461 err = -EPERM;
2462 done:
2463 brcmf_dbg(TRACE, "Exit\n");
2464 return err;
2465 }
2466
2467 static s32
brcmf_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * ndev,bool enabled,s32 timeout)2468 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2469 bool enabled, s32 timeout)
2470 {
2471 s32 pm;
2472 s32 err = 0;
2473 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2474 struct brcmf_if *ifp = netdev_priv(ndev);
2475
2476 brcmf_dbg(TRACE, "Enter\n");
2477
2478 /*
2479 * Powersave enable/disable request is coming from the
2480 * cfg80211 even before the interface is up. In that
2481 * scenario, driver will be storing the power save
2482 * preference in cfg struct to apply this to
2483 * FW later while initializing the dongle
2484 */
2485 cfg->pwr_save = enabled;
2486 if (!check_vif_up(ifp->vif)) {
2487
2488 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2489 goto done;
2490 }
2491
2492 pm = enabled ? PM_FAST : PM_OFF;
2493 /* Do not enable the power save after assoc if it is a p2p interface */
2494 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2495 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2496 pm = PM_OFF;
2497 }
2498 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2499
2500 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2501 if (err) {
2502 if (err == -ENODEV)
2503 brcmf_err("net_device is not ready yet\n");
2504 else
2505 brcmf_err("error (%d)\n", err);
2506 }
2507 done:
2508 brcmf_dbg(TRACE, "Exit\n");
2509 return err;
2510 }
2511
brcmf_inform_single_bss(struct brcmf_cfg80211_info * cfg,struct brcmf_bss_info_le * bi)2512 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2513 struct brcmf_bss_info_le *bi)
2514 {
2515 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2516 struct ieee80211_channel *notify_channel;
2517 struct cfg80211_bss *bss;
2518 struct ieee80211_supported_band *band;
2519 struct brcmu_chan ch;
2520 u16 channel;
2521 u32 freq;
2522 u16 notify_capability;
2523 u16 notify_interval;
2524 u8 *notify_ie;
2525 size_t notify_ielen;
2526 s32 notify_signal;
2527
2528 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2529 brcmf_err("Bss info is larger than buffer. Discarding\n");
2530 return 0;
2531 }
2532
2533 if (!bi->ctl_ch) {
2534 ch.chspec = le16_to_cpu(bi->chanspec);
2535 cfg->d11inf.decchspec(&ch);
2536 bi->ctl_ch = ch.chnum;
2537 }
2538 channel = bi->ctl_ch;
2539
2540 if (channel <= CH_MAX_2G_CHANNEL)
2541 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2542 else
2543 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2544
2545 freq = ieee80211_channel_to_frequency(channel, band->band);
2546 notify_channel = ieee80211_get_channel(wiphy, freq);
2547
2548 notify_capability = le16_to_cpu(bi->capability);
2549 notify_interval = le16_to_cpu(bi->beacon_period);
2550 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2551 notify_ielen = le32_to_cpu(bi->ie_length);
2552 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2553
2554 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2555 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2556 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2557 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2558 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2559
2560 bss = cfg80211_inform_bss(wiphy, notify_channel,
2561 CFG80211_BSS_FTYPE_UNKNOWN,
2562 (const u8 *)bi->BSSID,
2563 0, notify_capability,
2564 notify_interval, notify_ie,
2565 notify_ielen, notify_signal,
2566 GFP_KERNEL);
2567
2568 if (!bss)
2569 return -ENOMEM;
2570
2571 cfg80211_put_bss(wiphy, bss);
2572
2573 return 0;
2574 }
2575
2576 static struct brcmf_bss_info_le *
next_bss_le(struct brcmf_scan_results * list,struct brcmf_bss_info_le * bss)2577 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2578 {
2579 if (bss == NULL)
2580 return list->bss_info_le;
2581 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2582 le32_to_cpu(bss->length));
2583 }
2584
brcmf_inform_bss(struct brcmf_cfg80211_info * cfg)2585 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2586 {
2587 struct brcmf_scan_results *bss_list;
2588 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2589 s32 err = 0;
2590 int i;
2591
2592 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2593 if (bss_list->count != 0 &&
2594 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2595 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2596 bss_list->version);
2597 return -EOPNOTSUPP;
2598 }
2599 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2600 for (i = 0; i < bss_list->count; i++) {
2601 bi = next_bss_le(bss_list, bi);
2602 err = brcmf_inform_single_bss(cfg, bi);
2603 if (err)
2604 break;
2605 }
2606 return err;
2607 }
2608
wl_inform_ibss(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const u8 * bssid)2609 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2610 struct net_device *ndev, const u8 *bssid)
2611 {
2612 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2613 struct ieee80211_channel *notify_channel;
2614 struct brcmf_bss_info_le *bi = NULL;
2615 struct ieee80211_supported_band *band;
2616 struct cfg80211_bss *bss;
2617 struct brcmu_chan ch;
2618 u8 *buf = NULL;
2619 s32 err = 0;
2620 u32 freq;
2621 u16 notify_capability;
2622 u16 notify_interval;
2623 u8 *notify_ie;
2624 size_t notify_ielen;
2625 s32 notify_signal;
2626
2627 brcmf_dbg(TRACE, "Enter\n");
2628
2629 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2630 if (buf == NULL) {
2631 err = -ENOMEM;
2632 goto CleanUp;
2633 }
2634
2635 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2636
2637 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2638 buf, WL_BSS_INFO_MAX);
2639 if (err) {
2640 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2641 goto CleanUp;
2642 }
2643
2644 bi = (struct brcmf_bss_info_le *)(buf + 4);
2645
2646 ch.chspec = le16_to_cpu(bi->chanspec);
2647 cfg->d11inf.decchspec(&ch);
2648
2649 if (ch.band == BRCMU_CHAN_BAND_2G)
2650 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2651 else
2652 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2653
2654 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2655 notify_channel = ieee80211_get_channel(wiphy, freq);
2656
2657 notify_capability = le16_to_cpu(bi->capability);
2658 notify_interval = le16_to_cpu(bi->beacon_period);
2659 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2660 notify_ielen = le32_to_cpu(bi->ie_length);
2661 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2662
2663 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2664 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2665 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2666 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2667
2668 bss = cfg80211_inform_bss(wiphy, notify_channel,
2669 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2670 notify_capability, notify_interval,
2671 notify_ie, notify_ielen, notify_signal,
2672 GFP_KERNEL);
2673
2674 if (!bss) {
2675 err = -ENOMEM;
2676 goto CleanUp;
2677 }
2678
2679 cfg80211_put_bss(wiphy, bss);
2680
2681 CleanUp:
2682
2683 kfree(buf);
2684
2685 brcmf_dbg(TRACE, "Exit\n");
2686
2687 return err;
2688 }
2689
brcmf_update_bss_info(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp)2690 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2691 struct brcmf_if *ifp)
2692 {
2693 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2694 struct brcmf_bss_info_le *bi;
2695 struct brcmf_ssid *ssid;
2696 const struct brcmf_tlv *tim;
2697 u16 beacon_interval;
2698 u8 dtim_period;
2699 size_t ie_len;
2700 u8 *ie;
2701 s32 err = 0;
2702
2703 brcmf_dbg(TRACE, "Enter\n");
2704 if (brcmf_is_ibssmode(ifp->vif))
2705 return err;
2706
2707 ssid = &profile->ssid;
2708
2709 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2710 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2711 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2712 if (err) {
2713 brcmf_err("Could not get bss info %d\n", err);
2714 goto update_bss_info_out;
2715 }
2716
2717 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2718 err = brcmf_inform_single_bss(cfg, bi);
2719 if (err)
2720 goto update_bss_info_out;
2721
2722 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2723 ie_len = le32_to_cpu(bi->ie_length);
2724 beacon_interval = le16_to_cpu(bi->beacon_period);
2725
2726 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2727 if (tim)
2728 dtim_period = tim->data[1];
2729 else {
2730 /*
2731 * active scan was done so we could not get dtim
2732 * information out of probe response.
2733 * so we speficially query dtim information to dongle.
2734 */
2735 u32 var;
2736 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2737 if (err) {
2738 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2739 goto update_bss_info_out;
2740 }
2741 dtim_period = (u8)var;
2742 }
2743
2744 update_bss_info_out:
2745 brcmf_dbg(TRACE, "Exit");
2746 return err;
2747 }
2748
brcmf_abort_scanning(struct brcmf_cfg80211_info * cfg)2749 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2750 {
2751 struct escan_info *escan = &cfg->escan_info;
2752
2753 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2754 if (cfg->scan_request) {
2755 escan->escan_state = WL_ESCAN_STATE_IDLE;
2756 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2757 }
2758 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2759 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2760 }
2761
brcmf_cfg80211_escan_timeout_worker(struct work_struct * work)2762 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2763 {
2764 struct brcmf_cfg80211_info *cfg =
2765 container_of(work, struct brcmf_cfg80211_info,
2766 escan_timeout_work);
2767
2768 brcmf_inform_bss(cfg);
2769 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2770 }
2771
brcmf_escan_timeout(unsigned long data)2772 static void brcmf_escan_timeout(unsigned long data)
2773 {
2774 struct brcmf_cfg80211_info *cfg =
2775 (struct brcmf_cfg80211_info *)data;
2776
2777 if (cfg->scan_request) {
2778 brcmf_err("timer expired\n");
2779 schedule_work(&cfg->escan_timeout_work);
2780 }
2781 }
2782
2783 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)2784 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2785 struct brcmf_bss_info_le *bss,
2786 struct brcmf_bss_info_le *bss_info_le)
2787 {
2788 struct brcmu_chan ch_bss, ch_bss_info_le;
2789
2790 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2791 cfg->d11inf.decchspec(&ch_bss);
2792 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2793 cfg->d11inf.decchspec(&ch_bss_info_le);
2794
2795 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2796 ch_bss.band == ch_bss_info_le.band &&
2797 bss_info_le->SSID_len == bss->SSID_len &&
2798 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2799 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2800 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2801 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2802 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2803
2804 /* preserve max RSSI if the measurements are
2805 * both on-channel or both off-channel
2806 */
2807 if (bss_info_rssi > bss_rssi)
2808 bss->RSSI = bss_info_le->RSSI;
2809 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2810 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2811 /* preserve the on-channel rssi measurement
2812 * if the new measurement is off channel
2813 */
2814 bss->RSSI = bss_info_le->RSSI;
2815 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2816 }
2817 return 1;
2818 }
2819 return 0;
2820 }
2821
2822 static s32
brcmf_cfg80211_escan_handler(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)2823 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2824 const struct brcmf_event_msg *e, void *data)
2825 {
2826 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2827 s32 status;
2828 struct brcmf_escan_result_le *escan_result_le;
2829 struct brcmf_bss_info_le *bss_info_le;
2830 struct brcmf_bss_info_le *bss = NULL;
2831 u32 bi_length;
2832 struct brcmf_scan_results *list;
2833 u32 i;
2834 bool aborted;
2835
2836 status = e->status;
2837
2838 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2839 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2840 return -EPERM;
2841 }
2842
2843 if (status == BRCMF_E_STATUS_PARTIAL) {
2844 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2845 escan_result_le = (struct brcmf_escan_result_le *) data;
2846 if (!escan_result_le) {
2847 brcmf_err("Invalid escan result (NULL pointer)\n");
2848 goto exit;
2849 }
2850 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2851 brcmf_err("Invalid bss_count %d: ignoring\n",
2852 escan_result_le->bss_count);
2853 goto exit;
2854 }
2855 bss_info_le = &escan_result_le->bss_info_le;
2856
2857 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2858 goto exit;
2859
2860 if (!cfg->scan_request) {
2861 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2862 goto exit;
2863 }
2864
2865 bi_length = le32_to_cpu(bss_info_le->length);
2866 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2867 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2868 brcmf_err("Invalid bss_info length %d: ignoring\n",
2869 bi_length);
2870 goto exit;
2871 }
2872
2873 if (!(cfg_to_wiphy(cfg)->interface_modes &
2874 BIT(NL80211_IFTYPE_ADHOC))) {
2875 if (le16_to_cpu(bss_info_le->capability) &
2876 WLAN_CAPABILITY_IBSS) {
2877 brcmf_err("Ignoring IBSS result\n");
2878 goto exit;
2879 }
2880 }
2881
2882 list = (struct brcmf_scan_results *)
2883 cfg->escan_info.escan_buf;
2884 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2885 brcmf_err("Buffer is too small: ignoring\n");
2886 goto exit;
2887 }
2888
2889 for (i = 0; i < list->count; i++) {
2890 bss = bss ? (struct brcmf_bss_info_le *)
2891 ((unsigned char *)bss +
2892 le32_to_cpu(bss->length)) : list->bss_info_le;
2893 if (brcmf_compare_update_same_bss(cfg, bss,
2894 bss_info_le))
2895 goto exit;
2896 }
2897 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2898 bss_info_le, bi_length);
2899 list->version = le32_to_cpu(bss_info_le->version);
2900 list->buflen += bi_length;
2901 list->count++;
2902 } else {
2903 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2904 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2905 goto exit;
2906 if (cfg->scan_request) {
2907 brcmf_inform_bss(cfg);
2908 aborted = status != BRCMF_E_STATUS_SUCCESS;
2909 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2910 } else
2911 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2912 status);
2913 }
2914 exit:
2915 return 0;
2916 }
2917
brcmf_init_escan(struct brcmf_cfg80211_info * cfg)2918 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2919 {
2920 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2921 brcmf_cfg80211_escan_handler);
2922 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2923 /* Init scan_timeout timer */
2924 init_timer(&cfg->escan_timeout);
2925 cfg->escan_timeout.data = (unsigned long) cfg;
2926 cfg->escan_timeout.function = brcmf_escan_timeout;
2927 INIT_WORK(&cfg->escan_timeout_work,
2928 brcmf_cfg80211_escan_timeout_worker);
2929 }
2930
brcmf_delay(u32 ms)2931 static __always_inline void brcmf_delay(u32 ms)
2932 {
2933 if (ms < 1000 / HZ) {
2934 cond_resched();
2935 mdelay(ms);
2936 } else {
2937 msleep(ms);
2938 }
2939 }
2940
brcmf_config_wowl_pattern(struct brcmf_if * ifp,u8 cmd[4],u8 * pattern,u32 patternsize,u8 * mask,u32 packet_offset)2941 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2942 u8 *pattern, u32 patternsize, u8 *mask,
2943 u32 packet_offset)
2944 {
2945 struct brcmf_fil_wowl_pattern_le *filter;
2946 u32 masksize;
2947 u32 patternoffset;
2948 u8 *buf;
2949 u32 bufsize;
2950 s32 ret;
2951
2952 masksize = (patternsize + 7) / 8;
2953 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2954
2955 bufsize = sizeof(*filter) + patternsize + masksize;
2956 buf = kzalloc(bufsize, GFP_KERNEL);
2957 if (!buf)
2958 return -ENOMEM;
2959 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2960
2961 memcpy(filter->cmd, cmd, 4);
2962 filter->masksize = cpu_to_le32(masksize);
2963 filter->offset = cpu_to_le32(packet_offset);
2964 filter->patternoffset = cpu_to_le32(patternoffset);
2965 filter->patternsize = cpu_to_le32(patternsize);
2966 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2967
2968 if ((mask) && (masksize))
2969 memcpy(buf + sizeof(*filter), mask, masksize);
2970 if ((pattern) && (patternsize))
2971 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2972
2973 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2974
2975 kfree(buf);
2976 return ret;
2977 }
2978
brcmf_cfg80211_resume(struct wiphy * wiphy)2979 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2980 {
2981 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2982 struct net_device *ndev = cfg_to_ndev(cfg);
2983 struct brcmf_if *ifp = netdev_priv(ndev);
2984
2985 brcmf_dbg(TRACE, "Enter\n");
2986
2987 if (cfg->wowl_enabled) {
2988 brcmf_configure_arp_offload(ifp, true);
2989 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2990 cfg->pre_wowl_pmmode);
2991 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2992 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2993 cfg->wowl_enabled = false;
2994 }
2995 return 0;
2996 }
2997
brcmf_configure_wowl(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp,struct cfg80211_wowlan * wowl)2998 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2999 struct brcmf_if *ifp,
3000 struct cfg80211_wowlan *wowl)
3001 {
3002 u32 wowl_config;
3003 u32 i;
3004
3005 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
3006
3007 brcmf_configure_arp_offload(ifp, false);
3008 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
3009 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
3010
3011 wowl_config = 0;
3012 if (wowl->disconnect)
3013 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
3014 if (wowl->magic_pkt)
3015 wowl_config |= BRCMF_WOWL_MAGIC;
3016 if ((wowl->patterns) && (wowl->n_patterns)) {
3017 wowl_config |= BRCMF_WOWL_NET;
3018 for (i = 0; i < wowl->n_patterns; i++) {
3019 brcmf_config_wowl_pattern(ifp, "add",
3020 (u8 *)wowl->patterns[i].pattern,
3021 wowl->patterns[i].pattern_len,
3022 (u8 *)wowl->patterns[i].mask,
3023 wowl->patterns[i].pkt_offset);
3024 }
3025 }
3026 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
3027 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
3028 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
3029 cfg->wowl_enabled = true;
3030 }
3031
brcmf_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowl)3032 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3033 struct cfg80211_wowlan *wowl)
3034 {
3035 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3036 struct net_device *ndev = cfg_to_ndev(cfg);
3037 struct brcmf_if *ifp = netdev_priv(ndev);
3038 struct brcmf_cfg80211_vif *vif;
3039
3040 brcmf_dbg(TRACE, "Enter\n");
3041
3042 /* if the primary net_device is not READY there is nothing
3043 * we can do but pray resume goes smoothly.
3044 */
3045 if (!check_vif_up(ifp->vif))
3046 goto exit;
3047
3048 /* end any scanning */
3049 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
3050 brcmf_abort_scanning(cfg);
3051
3052 if (wowl == NULL) {
3053 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
3054 list_for_each_entry(vif, &cfg->vif_list, list) {
3055 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
3056 continue;
3057 /* While going to suspend if associated with AP
3058 * disassociate from AP to save power while system is
3059 * in suspended state
3060 */
3061 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED);
3062 /* Make sure WPA_Supplicant receives all the event
3063 * generated due to DISASSOC call to the fw to keep
3064 * the state fw and WPA_Supplicant state consistent
3065 */
3066 brcmf_delay(500);
3067 }
3068 /* Configure MPC */
3069 brcmf_set_mpc(ifp, 1);
3070
3071 } else {
3072 /* Configure WOWL paramaters */
3073 brcmf_configure_wowl(cfg, ifp, wowl);
3074 }
3075
3076 exit:
3077 brcmf_dbg(TRACE, "Exit\n");
3078 /* clear any scanning activity */
3079 cfg->scan_status = 0;
3080 return 0;
3081 }
3082
3083 static __used s32
brcmf_update_pmklist(struct net_device * ndev,struct brcmf_cfg80211_pmk_list * pmk_list,s32 err)3084 brcmf_update_pmklist(struct net_device *ndev,
3085 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3086 {
3087 int i, j;
3088 u32 pmkid_len;
3089
3090 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3091
3092 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
3093 for (i = 0; i < pmkid_len; i++) {
3094 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
3095 &pmk_list->pmkids.pmkid[i].BSSID);
3096 for (j = 0; j < WLAN_PMKID_LEN; j++)
3097 brcmf_dbg(CONN, "%02x\n",
3098 pmk_list->pmkids.pmkid[i].PMKID[j]);
3099 }
3100
3101 if (!err)
3102 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3103 (char *)pmk_list, sizeof(*pmk_list));
3104
3105 return err;
3106 }
3107
3108 static s32
brcmf_cfg80211_set_pmksa(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_pmksa * pmksa)3109 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3110 struct cfg80211_pmksa *pmksa)
3111 {
3112 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3113 struct brcmf_if *ifp = netdev_priv(ndev);
3114 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3115 s32 err = 0;
3116 u32 pmkid_len, i;
3117
3118 brcmf_dbg(TRACE, "Enter\n");
3119 if (!check_vif_up(ifp->vif))
3120 return -EIO;
3121
3122 pmkid_len = le32_to_cpu(pmkids->npmkid);
3123 for (i = 0; i < pmkid_len; i++)
3124 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3125 break;
3126 if (i < WL_NUM_PMKIDS_MAX) {
3127 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3128 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3129 if (i == pmkid_len) {
3130 pmkid_len++;
3131 pmkids->npmkid = cpu_to_le32(pmkid_len);
3132 }
3133 } else
3134 err = -EINVAL;
3135
3136 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3137 pmkids->pmkid[pmkid_len].BSSID);
3138 for (i = 0; i < WLAN_PMKID_LEN; i++)
3139 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3140
3141 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3142
3143 brcmf_dbg(TRACE, "Exit\n");
3144 return err;
3145 }
3146
3147 static s32
brcmf_cfg80211_del_pmksa(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_pmksa * pmksa)3148 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3149 struct cfg80211_pmksa *pmksa)
3150 {
3151 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3152 struct brcmf_if *ifp = netdev_priv(ndev);
3153 struct pmkid_list pmkid;
3154 s32 err = 0;
3155 u32 pmkid_len, i;
3156
3157 brcmf_dbg(TRACE, "Enter\n");
3158 if (!check_vif_up(ifp->vif))
3159 return -EIO;
3160
3161 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3162 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3163
3164 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3165 &pmkid.pmkid[0].BSSID);
3166 for (i = 0; i < WLAN_PMKID_LEN; i++)
3167 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3168
3169 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3170 for (i = 0; i < pmkid_len; i++)
3171 if (!memcmp
3172 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3173 ETH_ALEN))
3174 break;
3175
3176 if ((pmkid_len > 0)
3177 && (i < pmkid_len)) {
3178 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3179 sizeof(struct pmkid));
3180 for (; i < (pmkid_len - 1); i++) {
3181 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3182 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3183 ETH_ALEN);
3184 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3185 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3186 WLAN_PMKID_LEN);
3187 }
3188 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3189 } else
3190 err = -EINVAL;
3191
3192 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3193
3194 brcmf_dbg(TRACE, "Exit\n");
3195 return err;
3196
3197 }
3198
3199 static s32
brcmf_cfg80211_flush_pmksa(struct wiphy * wiphy,struct net_device * ndev)3200 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3201 {
3202 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3203 struct brcmf_if *ifp = netdev_priv(ndev);
3204 s32 err = 0;
3205
3206 brcmf_dbg(TRACE, "Enter\n");
3207 if (!check_vif_up(ifp->vif))
3208 return -EIO;
3209
3210 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3211 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3212
3213 brcmf_dbg(TRACE, "Exit\n");
3214 return err;
3215
3216 }
3217
3218 /*
3219 * PFN result doesn't have all the info which are
3220 * required by the supplicant
3221 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3222 * via wl_inform_single_bss in the required format. Escan does require the
3223 * scan request in the form of cfg80211_scan_request. For timebeing, create
3224 * cfg80211_scan_request one out of the received PNO event.
3225 */
3226 static s32
brcmf_notify_sched_scan_results(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)3227 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3228 const struct brcmf_event_msg *e, void *data)
3229 {
3230 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3231 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3232 struct cfg80211_scan_request *request = NULL;
3233 struct cfg80211_ssid *ssid = NULL;
3234 struct ieee80211_channel *channel = NULL;
3235 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3236 int err = 0;
3237 int channel_req = 0;
3238 int band = 0;
3239 struct brcmf_pno_scanresults_le *pfn_result;
3240 u32 result_count;
3241 u32 status;
3242
3243 brcmf_dbg(SCAN, "Enter\n");
3244
3245 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3246 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3247 return 0;
3248 }
3249
3250 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3251 result_count = le32_to_cpu(pfn_result->count);
3252 status = le32_to_cpu(pfn_result->status);
3253
3254 /*
3255 * PFN event is limited to fit 512 bytes so we may get
3256 * multiple NET_FOUND events. For now place a warning here.
3257 */
3258 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3259 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3260 if (result_count > 0) {
3261 int i;
3262
3263 request = kzalloc(sizeof(*request), GFP_KERNEL);
3264 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3265 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3266 if (!request || !ssid || !channel) {
3267 err = -ENOMEM;
3268 goto out_err;
3269 }
3270
3271 request->wiphy = wiphy;
3272 data += sizeof(struct brcmf_pno_scanresults_le);
3273 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3274
3275 for (i = 0; i < result_count; i++) {
3276 netinfo = &netinfo_start[i];
3277 if (!netinfo) {
3278 brcmf_err("Invalid netinfo ptr. index: %d\n",
3279 i);
3280 err = -EINVAL;
3281 goto out_err;
3282 }
3283
3284 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3285 netinfo->SSID, netinfo->channel);
3286 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3287 ssid[i].ssid_len = netinfo->SSID_len;
3288 request->n_ssids++;
3289
3290 channel_req = netinfo->channel;
3291 if (channel_req <= CH_MAX_2G_CHANNEL)
3292 band = NL80211_BAND_2GHZ;
3293 else
3294 band = NL80211_BAND_5GHZ;
3295 channel[i].center_freq =
3296 ieee80211_channel_to_frequency(channel_req,
3297 band);
3298 channel[i].band = band;
3299 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3300 request->channels[i] = &channel[i];
3301 request->n_channels++;
3302 }
3303
3304 /* assign parsed ssid array */
3305 if (request->n_ssids)
3306 request->ssids = &ssid[0];
3307
3308 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3309 /* Abort any on-going scan */
3310 brcmf_abort_scanning(cfg);
3311 }
3312
3313 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3314 cfg->escan_info.run = brcmf_run_escan;
3315 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3316 if (err) {
3317 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3318 goto out_err;
3319 }
3320 cfg->sched_escan = true;
3321 cfg->scan_request = request;
3322 } else {
3323 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3324 goto out_err;
3325 }
3326
3327 kfree(ssid);
3328 kfree(channel);
3329 kfree(request);
3330 return 0;
3331
3332 out_err:
3333 kfree(ssid);
3334 kfree(channel);
3335 kfree(request);
3336 cfg80211_sched_scan_stopped(wiphy);
3337 return err;
3338 }
3339
brcmf_dev_pno_clean(struct net_device * ndev)3340 static int brcmf_dev_pno_clean(struct net_device *ndev)
3341 {
3342 int ret;
3343
3344 /* Disable pfn */
3345 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3346 if (ret == 0) {
3347 /* clear pfn */
3348 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3349 NULL, 0);
3350 }
3351 if (ret < 0)
3352 brcmf_err("failed code %d\n", ret);
3353
3354 return ret;
3355 }
3356
brcmf_dev_pno_config(struct net_device * ndev)3357 static int brcmf_dev_pno_config(struct net_device *ndev)
3358 {
3359 struct brcmf_pno_param_le pfn_param;
3360
3361 memset(&pfn_param, 0, sizeof(pfn_param));
3362 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3363
3364 /* set extra pno params */
3365 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3366 pfn_param.repeat = BRCMF_PNO_REPEAT;
3367 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3368
3369 /* set up pno scan fr */
3370 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3371
3372 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3373 &pfn_param, sizeof(pfn_param));
3374 }
3375
3376 static int
brcmf_cfg80211_sched_scan_start(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_sched_scan_request * request)3377 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3378 struct net_device *ndev,
3379 struct cfg80211_sched_scan_request *request)
3380 {
3381 struct brcmf_if *ifp = netdev_priv(ndev);
3382 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3383 struct brcmf_pno_net_param_le pfn;
3384 int i;
3385 int ret = 0;
3386
3387 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3388 request->n_match_sets, request->n_ssids);
3389 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3390 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3391 return -EAGAIN;
3392 }
3393 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3394 brcmf_err("Scanning suppressed: status (%lu)\n",
3395 cfg->scan_status);
3396 return -EAGAIN;
3397 }
3398
3399 if (!request->n_ssids || !request->n_match_sets) {
3400 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3401 request->n_ssids);
3402 return -EINVAL;
3403 }
3404
3405 if (request->n_ssids > 0) {
3406 for (i = 0; i < request->n_ssids; i++) {
3407 /* Active scan req for ssids */
3408 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3409 request->ssids[i].ssid);
3410
3411 /*
3412 * match_set ssids is a supert set of n_ssid list,
3413 * so we need not add these set seperately.
3414 */
3415 }
3416 }
3417
3418 if (request->n_match_sets > 0) {
3419 /* clean up everything */
3420 ret = brcmf_dev_pno_clean(ndev);
3421 if (ret < 0) {
3422 brcmf_err("failed error=%d\n", ret);
3423 return ret;
3424 }
3425
3426 /* configure pno */
3427 ret = brcmf_dev_pno_config(ndev);
3428 if (ret < 0) {
3429 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3430 return -EINVAL;
3431 }
3432
3433 /* configure each match set */
3434 for (i = 0; i < request->n_match_sets; i++) {
3435 struct cfg80211_ssid *ssid;
3436 u32 ssid_len;
3437
3438 ssid = &request->match_sets[i].ssid;
3439 ssid_len = ssid->ssid_len;
3440
3441 if (!ssid_len) {
3442 brcmf_err("skip broadcast ssid\n");
3443 continue;
3444 }
3445 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3446 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3447 pfn.wsec = cpu_to_le32(0);
3448 pfn.infra = cpu_to_le32(1);
3449 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3450 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3451 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3452 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3453 sizeof(pfn));
3454 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3455 ret == 0 ? "set" : "failed", ssid->ssid);
3456 }
3457 /* Enable the PNO */
3458 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3459 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3460 return -EINVAL;
3461 }
3462 } else {
3463 return -EINVAL;
3464 }
3465
3466 return 0;
3467 }
3468
brcmf_cfg80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * ndev)3469 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3470 struct net_device *ndev)
3471 {
3472 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3473
3474 brcmf_dbg(SCAN, "enter\n");
3475 brcmf_dev_pno_clean(ndev);
3476 if (cfg->sched_escan)
3477 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3478 return 0;
3479 }
3480
brcmf_configure_opensecurity(struct brcmf_if * ifp)3481 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3482 {
3483 s32 err;
3484
3485 /* set auth */
3486 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3487 if (err < 0) {
3488 brcmf_err("auth error %d\n", err);
3489 return err;
3490 }
3491 /* set wsec */
3492 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3493 if (err < 0) {
3494 brcmf_err("wsec error %d\n", err);
3495 return err;
3496 }
3497 /* set upper-layer auth */
3498 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3499 if (err < 0) {
3500 brcmf_err("wpa_auth error %d\n", err);
3501 return err;
3502 }
3503
3504 return 0;
3505 }
3506
brcmf_valid_wpa_oui(u8 * oui,bool is_rsn_ie)3507 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3508 {
3509 if (is_rsn_ie)
3510 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3511
3512 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3513 }
3514
3515 static s32
brcmf_configure_wpaie(struct brcmf_if * ifp,const struct brcmf_vs_tlv * wpa_ie,bool is_rsn_ie)3516 brcmf_configure_wpaie(struct brcmf_if *ifp,
3517 const struct brcmf_vs_tlv *wpa_ie,
3518 bool is_rsn_ie)
3519 {
3520 u32 auth = 0; /* d11 open authentication */
3521 u16 count;
3522 s32 err = 0;
3523 s32 len = 0;
3524 u32 i;
3525 u32 wsec;
3526 u32 pval = 0;
3527 u32 gval = 0;
3528 u32 wpa_auth = 0;
3529 u32 offset;
3530 u8 *data;
3531 u16 rsn_cap;
3532 u32 wme_bss_disable;
3533
3534 brcmf_dbg(TRACE, "Enter\n");
3535 if (wpa_ie == NULL)
3536 goto exit;
3537
3538 len = wpa_ie->len + TLV_HDR_LEN;
3539 data = (u8 *)wpa_ie;
3540 offset = TLV_HDR_LEN;
3541 if (!is_rsn_ie)
3542 offset += VS_IE_FIXED_HDR_LEN;
3543 else
3544 offset += WPA_IE_VERSION_LEN;
3545
3546 /* check for multicast cipher suite */
3547 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3548 err = -EINVAL;
3549 brcmf_err("no multicast cipher suite\n");
3550 goto exit;
3551 }
3552
3553 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3554 err = -EINVAL;
3555 brcmf_err("ivalid OUI\n");
3556 goto exit;
3557 }
3558 offset += TLV_OUI_LEN;
3559
3560 /* pick up multicast cipher */
3561 switch (data[offset]) {
3562 case WPA_CIPHER_NONE:
3563 gval = 0;
3564 break;
3565 case WPA_CIPHER_WEP_40:
3566 case WPA_CIPHER_WEP_104:
3567 gval = WEP_ENABLED;
3568 break;
3569 case WPA_CIPHER_TKIP:
3570 gval = TKIP_ENABLED;
3571 break;
3572 case WPA_CIPHER_AES_CCM:
3573 gval = AES_ENABLED;
3574 break;
3575 default:
3576 err = -EINVAL;
3577 brcmf_err("Invalid multi cast cipher info\n");
3578 goto exit;
3579 }
3580
3581 offset++;
3582 /* walk thru unicast cipher list and pick up what we recognize */
3583 count = data[offset] + (data[offset + 1] << 8);
3584 offset += WPA_IE_SUITE_COUNT_LEN;
3585 /* Check for unicast suite(s) */
3586 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3587 err = -EINVAL;
3588 brcmf_err("no unicast cipher suite\n");
3589 goto exit;
3590 }
3591 for (i = 0; i < count; i++) {
3592 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3593 err = -EINVAL;
3594 brcmf_err("ivalid OUI\n");
3595 goto exit;
3596 }
3597 offset += TLV_OUI_LEN;
3598 switch (data[offset]) {
3599 case WPA_CIPHER_NONE:
3600 break;
3601 case WPA_CIPHER_WEP_40:
3602 case WPA_CIPHER_WEP_104:
3603 pval |= WEP_ENABLED;
3604 break;
3605 case WPA_CIPHER_TKIP:
3606 pval |= TKIP_ENABLED;
3607 break;
3608 case WPA_CIPHER_AES_CCM:
3609 pval |= AES_ENABLED;
3610 break;
3611 default:
3612 brcmf_err("Ivalid unicast security info\n");
3613 }
3614 offset++;
3615 }
3616 /* walk thru auth management suite list and pick up what we recognize */
3617 count = data[offset] + (data[offset + 1] << 8);
3618 offset += WPA_IE_SUITE_COUNT_LEN;
3619 /* Check for auth key management suite(s) */
3620 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3621 err = -EINVAL;
3622 brcmf_err("no auth key mgmt suite\n");
3623 goto exit;
3624 }
3625 for (i = 0; i < count; i++) {
3626 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3627 err = -EINVAL;
3628 brcmf_err("ivalid OUI\n");
3629 goto exit;
3630 }
3631 offset += TLV_OUI_LEN;
3632 switch (data[offset]) {
3633 case RSN_AKM_NONE:
3634 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3635 wpa_auth |= WPA_AUTH_NONE;
3636 break;
3637 case RSN_AKM_UNSPECIFIED:
3638 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3639 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3640 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3641 break;
3642 case RSN_AKM_PSK:
3643 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3644 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3645 (wpa_auth |= WPA_AUTH_PSK);
3646 break;
3647 default:
3648 brcmf_err("Ivalid key mgmt info\n");
3649 }
3650 offset++;
3651 }
3652
3653 if (is_rsn_ie) {
3654 wme_bss_disable = 1;
3655 if ((offset + RSN_CAP_LEN) <= len) {
3656 rsn_cap = data[offset] + (data[offset + 1] << 8);
3657 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3658 wme_bss_disable = 0;
3659 }
3660 /* set wme_bss_disable to sync RSN Capabilities */
3661 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3662 wme_bss_disable);
3663 if (err < 0) {
3664 brcmf_err("wme_bss_disable error %d\n", err);
3665 goto exit;
3666 }
3667 }
3668 /* FOR WPS , set SES_OW_ENABLED */
3669 wsec = (pval | gval | SES_OW_ENABLED);
3670
3671 /* set auth */
3672 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3673 if (err < 0) {
3674 brcmf_err("auth error %d\n", err);
3675 goto exit;
3676 }
3677 /* set wsec */
3678 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3679 if (err < 0) {
3680 brcmf_err("wsec error %d\n", err);
3681 goto exit;
3682 }
3683 /* set upper-layer auth */
3684 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3685 if (err < 0) {
3686 brcmf_err("wpa_auth error %d\n", err);
3687 goto exit;
3688 }
3689
3690 exit:
3691 return err;
3692 }
3693
3694 static s32
brcmf_parse_vndr_ies(const u8 * vndr_ie_buf,u32 vndr_ie_len,struct parsed_vndr_ies * vndr_ies)3695 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3696 struct parsed_vndr_ies *vndr_ies)
3697 {
3698 struct brcmf_vs_tlv *vndrie;
3699 struct brcmf_tlv *ie;
3700 struct parsed_vndr_ie_info *parsed_info;
3701 s32 remaining_len;
3702
3703 remaining_len = (s32)vndr_ie_len;
3704 memset(vndr_ies, 0, sizeof(*vndr_ies));
3705
3706 ie = (struct brcmf_tlv *)vndr_ie_buf;
3707 while (ie) {
3708 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3709 goto next;
3710 vndrie = (struct brcmf_vs_tlv *)ie;
3711 /* len should be bigger than OUI length + one */
3712 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3713 brcmf_err("invalid vndr ie. length is too small %d\n",
3714 vndrie->len);
3715 goto next;
3716 }
3717 /* if wpa or wme ie, do not add ie */
3718 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3719 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3720 (vndrie->oui_type == WME_OUI_TYPE))) {
3721 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3722 goto next;
3723 }
3724
3725 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3726
3727 /* save vndr ie information */
3728 parsed_info->ie_ptr = (char *)vndrie;
3729 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3730 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3731
3732 vndr_ies->count++;
3733
3734 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3735 parsed_info->vndrie.oui[0],
3736 parsed_info->vndrie.oui[1],
3737 parsed_info->vndrie.oui[2],
3738 parsed_info->vndrie.oui_type);
3739
3740 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3741 break;
3742 next:
3743 remaining_len -= (ie->len + TLV_HDR_LEN);
3744 if (remaining_len <= TLV_HDR_LEN)
3745 ie = NULL;
3746 else
3747 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3748 TLV_HDR_LEN);
3749 }
3750 return 0;
3751 }
3752
3753 static u32
brcmf_vndr_ie(u8 * iebuf,s32 pktflag,u8 * ie_ptr,u32 ie_len,s8 * add_del_cmd)3754 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3755 {
3756
3757 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3758 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3759
3760 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]);
3761
3762 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]);
3763
3764 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3765
3766 return ie_len + VNDR_IE_HDR_SIZE;
3767 }
3768
brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif * vif,s32 pktflag,const u8 * vndr_ie_buf,u32 vndr_ie_len)3769 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3770 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3771 {
3772 struct brcmf_if *ifp;
3773 struct vif_saved_ie *saved_ie;
3774 s32 err = 0;
3775 u8 *iovar_ie_buf;
3776 u8 *curr_ie_buf;
3777 u8 *mgmt_ie_buf = NULL;
3778 int mgmt_ie_buf_len;
3779 u32 *mgmt_ie_len;
3780 u32 del_add_ie_buf_len = 0;
3781 u32 total_ie_buf_len = 0;
3782 u32 parsed_ie_buf_len = 0;
3783 struct parsed_vndr_ies old_vndr_ies;
3784 struct parsed_vndr_ies new_vndr_ies;
3785 struct parsed_vndr_ie_info *vndrie_info;
3786 s32 i;
3787 u8 *ptr;
3788 int remained_buf_len;
3789
3790 if (!vif)
3791 return -ENODEV;
3792 ifp = vif->ifp;
3793 saved_ie = &vif->saved_ie;
3794
3795 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3796 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3797 if (!iovar_ie_buf)
3798 return -ENOMEM;
3799 curr_ie_buf = iovar_ie_buf;
3800 switch (pktflag) {
3801 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3802 mgmt_ie_buf = saved_ie->probe_req_ie;
3803 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3804 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3805 break;
3806 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3807 mgmt_ie_buf = saved_ie->probe_res_ie;
3808 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3809 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3810 break;
3811 case BRCMF_VNDR_IE_BEACON_FLAG:
3812 mgmt_ie_buf = saved_ie->beacon_ie;
3813 mgmt_ie_len = &saved_ie->beacon_ie_len;
3814 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3815 break;
3816 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3817 mgmt_ie_buf = saved_ie->assoc_req_ie;
3818 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3819 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3820 break;
3821 default:
3822 err = -EPERM;
3823 brcmf_err("not suitable type\n");
3824 goto exit;
3825 }
3826
3827 if (vndr_ie_len > mgmt_ie_buf_len) {
3828 err = -ENOMEM;
3829 brcmf_err("extra IE size too big\n");
3830 goto exit;
3831 }
3832
3833 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3834 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3835 ptr = curr_ie_buf;
3836 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3837 for (i = 0; i < new_vndr_ies.count; i++) {
3838 vndrie_info = &new_vndr_ies.ie_info[i];
3839 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3840 vndrie_info->ie_len);
3841 parsed_ie_buf_len += vndrie_info->ie_len;
3842 }
3843 }
3844
3845 if (mgmt_ie_buf && *mgmt_ie_len) {
3846 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3847 (memcmp(mgmt_ie_buf, curr_ie_buf,
3848 parsed_ie_buf_len) == 0)) {
3849 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3850 goto exit;
3851 }
3852
3853 /* parse old vndr_ie */
3854 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3855
3856 /* make a command to delete old ie */
3857 for (i = 0; i < old_vndr_ies.count; i++) {
3858 vndrie_info = &old_vndr_ies.ie_info[i];
3859
3860 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3861 vndrie_info->vndrie.id,
3862 vndrie_info->vndrie.len,
3863 vndrie_info->vndrie.oui[0],
3864 vndrie_info->vndrie.oui[1],
3865 vndrie_info->vndrie.oui[2]);
3866
3867 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3868 vndrie_info->ie_ptr,
3869 vndrie_info->ie_len,
3870 "del");
3871 curr_ie_buf += del_add_ie_buf_len;
3872 total_ie_buf_len += del_add_ie_buf_len;
3873 }
3874 }
3875
3876 *mgmt_ie_len = 0;
3877 /* Add if there is any extra IE */
3878 if (mgmt_ie_buf && parsed_ie_buf_len) {
3879 ptr = mgmt_ie_buf;
3880
3881 remained_buf_len = mgmt_ie_buf_len;
3882
3883 /* make a command to add new ie */
3884 for (i = 0; i < new_vndr_ies.count; i++) {
3885 vndrie_info = &new_vndr_ies.ie_info[i];
3886
3887 /* verify remained buf size before copy data */
3888 if (remained_buf_len < (vndrie_info->vndrie.len +
3889 VNDR_IE_VSIE_OFFSET)) {
3890 brcmf_err("no space in mgmt_ie_buf: len left %d",
3891 remained_buf_len);
3892 break;
3893 }
3894 remained_buf_len -= (vndrie_info->ie_len +
3895 VNDR_IE_VSIE_OFFSET);
3896
3897 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3898 vndrie_info->vndrie.id,
3899 vndrie_info->vndrie.len,
3900 vndrie_info->vndrie.oui[0],
3901 vndrie_info->vndrie.oui[1],
3902 vndrie_info->vndrie.oui[2]);
3903
3904 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3905 vndrie_info->ie_ptr,
3906 vndrie_info->ie_len,
3907 "add");
3908
3909 /* save the parsed IE in wl struct */
3910 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3911 vndrie_info->ie_len);
3912 *mgmt_ie_len += vndrie_info->ie_len;
3913
3914 curr_ie_buf += del_add_ie_buf_len;
3915 total_ie_buf_len += del_add_ie_buf_len;
3916 }
3917 }
3918 if (total_ie_buf_len) {
3919 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3920 total_ie_buf_len);
3921 if (err)
3922 brcmf_err("vndr ie set error : %d\n", err);
3923 }
3924
3925 exit:
3926 kfree(iovar_ie_buf);
3927 return err;
3928 }
3929
brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif * vif)3930 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3931 {
3932 s32 pktflags[] = {
3933 BRCMF_VNDR_IE_PRBREQ_FLAG,
3934 BRCMF_VNDR_IE_PRBRSP_FLAG,
3935 BRCMF_VNDR_IE_BEACON_FLAG
3936 };
3937 int i;
3938
3939 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3940 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3941
3942 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3943 return 0;
3944 }
3945
3946 static s32
brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif * vif,struct cfg80211_beacon_data * beacon)3947 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3948 struct cfg80211_beacon_data *beacon)
3949 {
3950 s32 err;
3951
3952 /* Set Beacon IEs to FW */
3953 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3954 beacon->tail, beacon->tail_len);
3955 if (err) {
3956 brcmf_err("Set Beacon IE Failed\n");
3957 return err;
3958 }
3959 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3960
3961 /* Set Probe Response IEs to FW */
3962 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3963 beacon->proberesp_ies,
3964 beacon->proberesp_ies_len);
3965 if (err)
3966 brcmf_err("Set Probe Resp IE Failed\n");
3967 else
3968 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3969
3970 return err;
3971 }
3972
3973 static s32
brcmf_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_ap_settings * settings)3974 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3975 struct cfg80211_ap_settings *settings)
3976 {
3977 s32 ie_offset;
3978 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3979 struct brcmf_if *ifp = netdev_priv(ndev);
3980 const struct brcmf_tlv *ssid_ie;
3981 const struct brcmf_tlv *country_ie;
3982 struct brcmf_ssid_le ssid_le;
3983 s32 err = -EPERM;
3984 const struct brcmf_tlv *rsn_ie;
3985 const struct brcmf_vs_tlv *wpa_ie;
3986 struct brcmf_join_params join_params;
3987 enum nl80211_iftype dev_role;
3988 struct brcmf_fil_bss_enable_le bss_enable;
3989 u16 chanspec;
3990 bool mbss;
3991 int is_11d;
3992
3993 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3994 settings->chandef.chan->hw_value,
3995 settings->chandef.center_freq1, settings->chandef.width,
3996 settings->beacon_interval, settings->dtim_period);
3997 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3998 settings->ssid, settings->ssid_len, settings->auth_type,
3999 settings->inactivity_timeout);
4000 dev_role = ifp->vif->wdev.iftype;
4001 mbss = ifp->vif->mbss;
4002
4003 /* store current 11d setting */
4004 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d);
4005 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4006 settings->beacon.tail_len,
4007 WLAN_EID_COUNTRY);
4008 is_11d = country_ie ? 1 : 0;
4009
4010 memset(&ssid_le, 0, sizeof(ssid_le));
4011 if (settings->ssid == NULL || settings->ssid_len == 0) {
4012 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
4013 ssid_ie = brcmf_parse_tlvs(
4014 (u8 *)&settings->beacon.head[ie_offset],
4015 settings->beacon.head_len - ie_offset,
4016 WLAN_EID_SSID);
4017 if (!ssid_ie)
4018 return -EINVAL;
4019
4020 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
4021 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
4022 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
4023 } else {
4024 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
4025 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
4026 }
4027
4028 if (!mbss) {
4029 brcmf_set_mpc(ifp, 0);
4030 brcmf_configure_arp_offload(ifp, false);
4031 }
4032
4033 /* find the RSN_IE */
4034 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
4035 settings->beacon.tail_len, WLAN_EID_RSN);
4036
4037 /* find the WPA_IE */
4038 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
4039 settings->beacon.tail_len);
4040
4041 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4042 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
4043 if (wpa_ie != NULL) {
4044 /* WPA IE */
4045 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
4046 if (err < 0)
4047 goto exit;
4048 } else {
4049 struct brcmf_vs_tlv *tmp_ie;
4050
4051 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
4052
4053 /* RSN IE */
4054 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
4055 if (err < 0)
4056 goto exit;
4057 }
4058 } else {
4059 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
4060 brcmf_configure_opensecurity(ifp);
4061 }
4062
4063 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4064
4065 if (!mbss) {
4066 chanspec = chandef_to_chanspec(&cfg->d11inf,
4067 &settings->chandef);
4068 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4069 if (err < 0) {
4070 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4071 chanspec, err);
4072 goto exit;
4073 }
4074
4075 if (is_11d != ifp->vif->is_11d) {
4076 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4077 is_11d);
4078 if (err < 0) {
4079 brcmf_err("Regulatory Set Error, %d\n", err);
4080 goto exit;
4081 }
4082 }
4083 if (settings->beacon_interval) {
4084 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4085 settings->beacon_interval);
4086 if (err < 0) {
4087 brcmf_err("Beacon Interval Set Error, %d\n",
4088 err);
4089 goto exit;
4090 }
4091 }
4092 if (settings->dtim_period) {
4093 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4094 settings->dtim_period);
4095 if (err < 0) {
4096 brcmf_err("DTIM Interval Set Error, %d\n", err);
4097 goto exit;
4098 }
4099 }
4100
4101 if (dev_role == NL80211_IFTYPE_AP) {
4102 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4103 if (err < 0) {
4104 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4105 goto exit;
4106 }
4107 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4108 }
4109
4110 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4111 if (err < 0) {
4112 brcmf_err("SET INFRA error %d\n", err);
4113 goto exit;
4114 }
4115 } else if (WARN_ON(is_11d != ifp->vif->is_11d)) {
4116 /* Multiple-BSS should use same 11d configuration */
4117 err = -EINVAL;
4118 goto exit;
4119 }
4120 if (dev_role == NL80211_IFTYPE_AP) {
4121 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4122 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4123
4124 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4125 if (err < 0) {
4126 brcmf_err("setting AP mode failed %d\n", err);
4127 goto exit;
4128 }
4129 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4130 if (err < 0) {
4131 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4132 goto exit;
4133 }
4134 /* On DOWN the firmware removes the WEP keys, reconfigure
4135 * them if they were set.
4136 */
4137 brcmf_cfg80211_reconfigure_wep(ifp);
4138
4139 memset(&join_params, 0, sizeof(join_params));
4140 /* join parameters starts with ssid */
4141 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4142 /* create softap */
4143 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4144 &join_params, sizeof(join_params));
4145 if (err < 0) {
4146 brcmf_err("SET SSID error (%d)\n", err);
4147 goto exit;
4148 }
4149 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4150 } else {
4151 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4152 sizeof(ssid_le));
4153 if (err < 0) {
4154 brcmf_err("setting ssid failed %d\n", err);
4155 goto exit;
4156 }
4157 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4158 bss_enable.enable = cpu_to_le32(1);
4159 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4160 sizeof(bss_enable));
4161 if (err < 0) {
4162 brcmf_err("bss_enable config failed %d\n", err);
4163 goto exit;
4164 }
4165
4166 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4167 }
4168 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4169 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4170
4171 exit:
4172 if ((err) && (!mbss)) {
4173 brcmf_set_mpc(ifp, 1);
4174 brcmf_configure_arp_offload(ifp, true);
4175 }
4176 return err;
4177 }
4178
brcmf_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * ndev)4179 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4180 {
4181 struct brcmf_if *ifp = netdev_priv(ndev);
4182 s32 err;
4183 struct brcmf_fil_bss_enable_le bss_enable;
4184 struct brcmf_join_params join_params;
4185
4186 brcmf_dbg(TRACE, "Enter\n");
4187
4188 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4189 /* Due to most likely deauths outstanding we sleep */
4190 /* first to make sure they get processed by fw. */
4191 msleep(400);
4192
4193 if (ifp->vif->mbss) {
4194 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4195 return err;
4196 }
4197
4198 memset(&join_params, 0, sizeof(join_params));
4199 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4200 &join_params, sizeof(join_params));
4201 if (err < 0)
4202 brcmf_err("SET SSID error (%d)\n", err);
4203 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4204 if (err < 0)
4205 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4206 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4207 if (err < 0)
4208 brcmf_err("setting AP mode failed %d\n", err);
4209 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4210 if (err < 0)
4211 brcmf_err("setting INFRA mode failed %d\n", err);
4212 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4213 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4214 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
4215 ifp->vif->is_11d);
4216 if (err < 0)
4217 brcmf_err("restoring REGULATORY setting failed %d\n",
4218 err);
4219 /* Bring device back up so it can be used again */
4220 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4221 if (err < 0)
4222 brcmf_err("BRCMF_C_UP error %d\n", err);
4223 } else {
4224 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4225 bss_enable.enable = cpu_to_le32(0);
4226 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4227 sizeof(bss_enable));
4228 if (err < 0)
4229 brcmf_err("bss_enable config failed %d\n", err);
4230 }
4231 brcmf_set_mpc(ifp, 1);
4232 brcmf_configure_arp_offload(ifp, true);
4233 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4234 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4235
4236 return err;
4237 }
4238
4239 static s32
brcmf_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_beacon_data * info)4240 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4241 struct cfg80211_beacon_data *info)
4242 {
4243 struct brcmf_if *ifp = netdev_priv(ndev);
4244 s32 err;
4245
4246 brcmf_dbg(TRACE, "Enter\n");
4247
4248 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4249
4250 return err;
4251 }
4252
4253 static int
brcmf_cfg80211_del_station(struct wiphy * wiphy,struct net_device * ndev,struct station_del_parameters * params)4254 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4255 struct station_del_parameters *params)
4256 {
4257 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4258 struct brcmf_scb_val_le scbval;
4259 struct brcmf_if *ifp = netdev_priv(ndev);
4260 s32 err;
4261
4262 if (!params->mac)
4263 return -EFAULT;
4264
4265 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4266
4267 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4268 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4269 if (!check_vif_up(ifp->vif))
4270 return -EIO;
4271
4272 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4273 scbval.val = cpu_to_le32(params->reason_code);
4274 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4275 &scbval, sizeof(scbval));
4276 if (err)
4277 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4278
4279 brcmf_dbg(TRACE, "Exit\n");
4280 return err;
4281 }
4282
4283 static int
brcmf_cfg80211_change_station(struct wiphy * wiphy,struct net_device * ndev,const u8 * mac,struct station_parameters * params)4284 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev,
4285 const u8 *mac, struct station_parameters *params)
4286 {
4287 struct brcmf_if *ifp = netdev_priv(ndev);
4288 s32 err;
4289
4290 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac,
4291 params->sta_flags_mask, params->sta_flags_set);
4292
4293 /* Ignore all 00 MAC */
4294 if (is_zero_ether_addr(mac))
4295 return 0;
4296
4297 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4298 return 0;
4299
4300 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4301 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE,
4302 (void *)mac, ETH_ALEN);
4303 else
4304 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE,
4305 (void *)mac, ETH_ALEN);
4306 if (err < 0)
4307 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err);
4308
4309 return err;
4310 }
4311
4312 static void
brcmf_cfg80211_mgmt_frame_register(struct wiphy * wiphy,struct wireless_dev * wdev,u16 frame_type,bool reg)4313 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4314 struct wireless_dev *wdev,
4315 u16 frame_type, bool reg)
4316 {
4317 struct brcmf_cfg80211_vif *vif;
4318 u16 mgmt_type;
4319
4320 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4321
4322 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4323 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4324 if (reg)
4325 vif->mgmt_rx_reg |= BIT(mgmt_type);
4326 else
4327 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4328 }
4329
4330
4331 static int
brcmf_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)4332 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4333 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4334 {
4335 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4336 struct ieee80211_channel *chan = params->chan;
4337 const u8 *buf = params->buf;
4338 size_t len = params->len;
4339 const struct ieee80211_mgmt *mgmt;
4340 struct brcmf_cfg80211_vif *vif;
4341 s32 err = 0;
4342 s32 ie_offset;
4343 s32 ie_len;
4344 struct brcmf_fil_action_frame_le *action_frame;
4345 struct brcmf_fil_af_params_le *af_params;
4346 bool ack;
4347 s32 chan_nr;
4348 u32 freq;
4349
4350 brcmf_dbg(TRACE, "Enter\n");
4351
4352 *cookie = 0;
4353
4354 mgmt = (const struct ieee80211_mgmt *)buf;
4355
4356 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4357 brcmf_err("Driver only allows MGMT packet type\n");
4358 return -EPERM;
4359 }
4360
4361 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4362
4363 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4364 /* Right now the only reason to get a probe response */
4365 /* is for p2p listen response or for p2p GO from */
4366 /* wpa_supplicant. Unfortunately the probe is send */
4367 /* on primary ndev, while dongle wants it on the p2p */
4368 /* vif. Since this is only reason for a probe */
4369 /* response to be sent, the vif is taken from cfg. */
4370 /* If ever desired to send proberesp for non p2p */
4371 /* response then data should be checked for */
4372 /* "DIRECT-". Note in future supplicant will take */
4373 /* dedicated p2p wdev to do this and then this 'hack'*/
4374 /* is not needed anymore. */
4375 ie_offset = DOT11_MGMT_HDR_LEN +
4376 DOT11_BCN_PRB_FIXED_LEN;
4377 ie_len = len - ie_offset;
4378 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4379 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4380 err = brcmf_vif_set_mgmt_ie(vif,
4381 BRCMF_VNDR_IE_PRBRSP_FLAG,
4382 &buf[ie_offset],
4383 ie_len);
4384 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4385 GFP_KERNEL);
4386 } else if (ieee80211_is_action(mgmt->frame_control)) {
4387 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4388 if (af_params == NULL) {
4389 brcmf_err("unable to allocate frame\n");
4390 err = -ENOMEM;
4391 goto exit;
4392 }
4393 action_frame = &af_params->action_frame;
4394 /* Add the packet Id */
4395 action_frame->packet_id = cpu_to_le32(*cookie);
4396 /* Add BSSID */
4397 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4398 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4399 /* Add the length exepted for 802.11 header */
4400 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4401 /* Add the channel. Use the one specified as parameter if any or
4402 * the current one (got from the firmware) otherwise
4403 */
4404 if (chan)
4405 freq = chan->center_freq;
4406 else
4407 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4408 &freq);
4409 chan_nr = ieee80211_frequency_to_channel(freq);
4410 af_params->channel = cpu_to_le32(chan_nr);
4411
4412 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4413 le16_to_cpu(action_frame->len));
4414
4415 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4416 *cookie, le16_to_cpu(action_frame->len), freq);
4417
4418 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4419 af_params);
4420
4421 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4422 GFP_KERNEL);
4423 kfree(af_params);
4424 } else {
4425 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4426 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4427 }
4428
4429 exit:
4430 return err;
4431 }
4432
4433
4434 static int
brcmf_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)4435 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4436 struct wireless_dev *wdev,
4437 u64 cookie)
4438 {
4439 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4440 struct brcmf_cfg80211_vif *vif;
4441 int err = 0;
4442
4443 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4444
4445 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4446 if (vif == NULL) {
4447 brcmf_err("No p2p device available for probe response\n");
4448 err = -ENODEV;
4449 goto exit;
4450 }
4451 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4452 exit:
4453 return err;
4454 }
4455
brcmf_cfg80211_crit_proto_start(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_crit_proto_id proto,u16 duration)4456 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4457 struct wireless_dev *wdev,
4458 enum nl80211_crit_proto_id proto,
4459 u16 duration)
4460 {
4461 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4462 struct brcmf_cfg80211_vif *vif;
4463
4464 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4465
4466 /* only DHCP support for now */
4467 if (proto != NL80211_CRIT_PROTO_DHCP)
4468 return -EINVAL;
4469
4470 /* suppress and abort scanning */
4471 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4472 brcmf_abort_scanning(cfg);
4473
4474 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4475 }
4476
brcmf_cfg80211_crit_proto_stop(struct wiphy * wiphy,struct wireless_dev * wdev)4477 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4478 struct wireless_dev *wdev)
4479 {
4480 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4481 struct brcmf_cfg80211_vif *vif;
4482
4483 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4484
4485 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4486 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4487 }
4488
4489 static s32
brcmf_notify_tdls_peer_event(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4490 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4491 const struct brcmf_event_msg *e, void *data)
4492 {
4493 switch (e->reason) {
4494 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4495 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4496 break;
4497 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4498 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4499 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4500 break;
4501 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4502 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4503 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4504 break;
4505 }
4506
4507 return 0;
4508 }
4509
brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)4510 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4511 {
4512 int ret;
4513
4514 switch (oper) {
4515 case NL80211_TDLS_DISCOVERY_REQ:
4516 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4517 break;
4518 case NL80211_TDLS_SETUP:
4519 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4520 break;
4521 case NL80211_TDLS_TEARDOWN:
4522 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4523 break;
4524 default:
4525 brcmf_err("unsupported operation: %d\n", oper);
4526 ret = -EOPNOTSUPP;
4527 }
4528 return ret;
4529 }
4530
brcmf_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * ndev,const u8 * peer,enum nl80211_tdls_operation oper)4531 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4532 struct net_device *ndev, const u8 *peer,
4533 enum nl80211_tdls_operation oper)
4534 {
4535 struct brcmf_if *ifp;
4536 struct brcmf_tdls_iovar_le info;
4537 int ret = 0;
4538
4539 ret = brcmf_convert_nl80211_tdls_oper(oper);
4540 if (ret < 0)
4541 return ret;
4542
4543 ifp = netdev_priv(ndev);
4544 memset(&info, 0, sizeof(info));
4545 info.mode = (u8)ret;
4546 if (peer)
4547 memcpy(info.ea, peer, ETH_ALEN);
4548
4549 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4550 &info, sizeof(info));
4551 if (ret < 0)
4552 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4553
4554 return ret;
4555 }
4556
4557 static struct cfg80211_ops wl_cfg80211_ops = {
4558 .add_virtual_intf = brcmf_cfg80211_add_iface,
4559 .del_virtual_intf = brcmf_cfg80211_del_iface,
4560 .change_virtual_intf = brcmf_cfg80211_change_iface,
4561 .scan = brcmf_cfg80211_scan,
4562 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4563 .join_ibss = brcmf_cfg80211_join_ibss,
4564 .leave_ibss = brcmf_cfg80211_leave_ibss,
4565 .get_station = brcmf_cfg80211_get_station,
4566 .set_tx_power = brcmf_cfg80211_set_tx_power,
4567 .get_tx_power = brcmf_cfg80211_get_tx_power,
4568 .add_key = brcmf_cfg80211_add_key,
4569 .del_key = brcmf_cfg80211_del_key,
4570 .get_key = brcmf_cfg80211_get_key,
4571 .set_default_key = brcmf_cfg80211_config_default_key,
4572 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4573 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4574 .connect = brcmf_cfg80211_connect,
4575 .disconnect = brcmf_cfg80211_disconnect,
4576 .suspend = brcmf_cfg80211_suspend,
4577 .resume = brcmf_cfg80211_resume,
4578 .set_pmksa = brcmf_cfg80211_set_pmksa,
4579 .del_pmksa = brcmf_cfg80211_del_pmksa,
4580 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4581 .start_ap = brcmf_cfg80211_start_ap,
4582 .stop_ap = brcmf_cfg80211_stop_ap,
4583 .change_beacon = brcmf_cfg80211_change_beacon,
4584 .del_station = brcmf_cfg80211_del_station,
4585 .change_station = brcmf_cfg80211_change_station,
4586 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4587 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4588 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4589 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4590 .remain_on_channel = brcmf_p2p_remain_on_channel,
4591 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4592 .start_p2p_device = brcmf_p2p_start_device,
4593 .stop_p2p_device = brcmf_p2p_stop_device,
4594 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4595 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4596 .tdls_oper = brcmf_cfg80211_tdls_oper,
4597 };
4598
brcmf_alloc_vif(struct brcmf_cfg80211_info * cfg,enum nl80211_iftype type,bool pm_block)4599 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4600 enum nl80211_iftype type,
4601 bool pm_block)
4602 {
4603 struct brcmf_cfg80211_vif *vif_walk;
4604 struct brcmf_cfg80211_vif *vif;
4605 bool mbss;
4606
4607 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4608 sizeof(*vif));
4609 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4610 if (!vif)
4611 return ERR_PTR(-ENOMEM);
4612
4613 vif->wdev.wiphy = cfg->wiphy;
4614 vif->wdev.iftype = type;
4615
4616 vif->pm_block = pm_block;
4617 vif->roam_off = -1;
4618
4619 brcmf_init_prof(&vif->profile);
4620
4621 if (type == NL80211_IFTYPE_AP) {
4622 mbss = false;
4623 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
4624 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
4625 mbss = true;
4626 break;
4627 }
4628 }
4629 vif->mbss = mbss;
4630 }
4631
4632 list_add_tail(&vif->list, &cfg->vif_list);
4633 return vif;
4634 }
4635
brcmf_free_vif(struct brcmf_cfg80211_vif * vif)4636 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4637 {
4638 list_del(&vif->list);
4639 kfree(vif);
4640 }
4641
brcmf_cfg80211_free_netdev(struct net_device * ndev)4642 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4643 {
4644 struct brcmf_cfg80211_vif *vif;
4645 struct brcmf_if *ifp;
4646
4647 ifp = netdev_priv(ndev);
4648 vif = ifp->vif;
4649
4650 brcmf_free_vif(vif);
4651 free_netdev(ndev);
4652 }
4653
brcmf_is_linkup(const struct brcmf_event_msg * e)4654 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4655 {
4656 u32 event = e->event_code;
4657 u32 status = e->status;
4658
4659 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4660 brcmf_dbg(CONN, "Processing set ssid\n");
4661 return true;
4662 }
4663
4664 return false;
4665 }
4666
brcmf_is_linkdown(const struct brcmf_event_msg * e)4667 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4668 {
4669 u32 event = e->event_code;
4670 u16 flags = e->flags;
4671
4672 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4673 (event == BRCMF_E_DISASSOC_IND) ||
4674 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4675 brcmf_dbg(CONN, "Processing link down\n");
4676 return true;
4677 }
4678 return false;
4679 }
4680
brcmf_is_nonetwork(struct brcmf_cfg80211_info * cfg,const struct brcmf_event_msg * e)4681 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4682 const struct brcmf_event_msg *e)
4683 {
4684 u32 event = e->event_code;
4685 u32 status = e->status;
4686
4687 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4688 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4689 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4690 return true;
4691 }
4692
4693 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4694 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4695 return true;
4696 }
4697
4698 return false;
4699 }
4700
brcmf_clear_assoc_ies(struct brcmf_cfg80211_info * cfg)4701 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4702 {
4703 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4704
4705 kfree(conn_info->req_ie);
4706 conn_info->req_ie = NULL;
4707 conn_info->req_ie_len = 0;
4708 kfree(conn_info->resp_ie);
4709 conn_info->resp_ie = NULL;
4710 conn_info->resp_ie_len = 0;
4711 }
4712
brcmf_get_assoc_ies(struct brcmf_cfg80211_info * cfg,struct brcmf_if * ifp)4713 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4714 struct brcmf_if *ifp)
4715 {
4716 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4717 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4718 u32 req_len;
4719 u32 resp_len;
4720 s32 err = 0;
4721
4722 brcmf_clear_assoc_ies(cfg);
4723
4724 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4725 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4726 if (err) {
4727 brcmf_err("could not get assoc info (%d)\n", err);
4728 return err;
4729 }
4730 assoc_info =
4731 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4732 req_len = le32_to_cpu(assoc_info->req_len);
4733 resp_len = le32_to_cpu(assoc_info->resp_len);
4734 if (req_len) {
4735 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4736 cfg->extra_buf,
4737 WL_ASSOC_INFO_MAX);
4738 if (err) {
4739 brcmf_err("could not get assoc req (%d)\n", err);
4740 return err;
4741 }
4742 conn_info->req_ie_len = req_len;
4743 conn_info->req_ie =
4744 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4745 GFP_KERNEL);
4746 } else {
4747 conn_info->req_ie_len = 0;
4748 conn_info->req_ie = NULL;
4749 }
4750 if (resp_len) {
4751 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4752 cfg->extra_buf,
4753 WL_ASSOC_INFO_MAX);
4754 if (err) {
4755 brcmf_err("could not get assoc resp (%d)\n", err);
4756 return err;
4757 }
4758 conn_info->resp_ie_len = resp_len;
4759 conn_info->resp_ie =
4760 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4761 GFP_KERNEL);
4762 } else {
4763 conn_info->resp_ie_len = 0;
4764 conn_info->resp_ie = NULL;
4765 }
4766 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4767 conn_info->req_ie_len, conn_info->resp_ie_len);
4768
4769 return err;
4770 }
4771
4772 static s32
brcmf_bss_roaming_done(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e)4773 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4774 struct net_device *ndev,
4775 const struct brcmf_event_msg *e)
4776 {
4777 struct brcmf_if *ifp = netdev_priv(ndev);
4778 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4779 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4780 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4781 struct ieee80211_channel *notify_channel = NULL;
4782 struct ieee80211_supported_band *band;
4783 struct brcmf_bss_info_le *bi;
4784 struct brcmu_chan ch;
4785 u32 freq;
4786 s32 err = 0;
4787 u8 *buf;
4788
4789 brcmf_dbg(TRACE, "Enter\n");
4790
4791 brcmf_get_assoc_ies(cfg, ifp);
4792 memcpy(profile->bssid, e->addr, ETH_ALEN);
4793 brcmf_update_bss_info(cfg, ifp);
4794
4795 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4796 if (buf == NULL) {
4797 err = -ENOMEM;
4798 goto done;
4799 }
4800
4801 /* data sent to dongle has to be little endian */
4802 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4803 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4804 buf, WL_BSS_INFO_MAX);
4805
4806 if (err)
4807 goto done;
4808
4809 bi = (struct brcmf_bss_info_le *)(buf + 4);
4810 ch.chspec = le16_to_cpu(bi->chanspec);
4811 cfg->d11inf.decchspec(&ch);
4812
4813 if (ch.band == BRCMU_CHAN_BAND_2G)
4814 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4815 else
4816 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4817
4818 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4819 notify_channel = ieee80211_get_channel(wiphy, freq);
4820
4821 done:
4822 kfree(buf);
4823 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4824 conn_info->req_ie, conn_info->req_ie_len,
4825 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4826 brcmf_dbg(CONN, "Report roaming result\n");
4827
4828 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4829 brcmf_dbg(TRACE, "Exit\n");
4830 return err;
4831 }
4832
4833 static s32
brcmf_bss_connect_done(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e,bool completed)4834 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4835 struct net_device *ndev, const struct brcmf_event_msg *e,
4836 bool completed)
4837 {
4838 struct brcmf_if *ifp = netdev_priv(ndev);
4839 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4840 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4841
4842 brcmf_dbg(TRACE, "Enter\n");
4843
4844 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4845 &ifp->vif->sme_state)) {
4846 if (completed) {
4847 brcmf_get_assoc_ies(cfg, ifp);
4848 memcpy(profile->bssid, e->addr, ETH_ALEN);
4849 brcmf_update_bss_info(cfg, ifp);
4850 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4851 &ifp->vif->sme_state);
4852 }
4853 cfg80211_connect_result(ndev,
4854 (u8 *)profile->bssid,
4855 conn_info->req_ie,
4856 conn_info->req_ie_len,
4857 conn_info->resp_ie,
4858 conn_info->resp_ie_len,
4859 completed ? WLAN_STATUS_SUCCESS :
4860 WLAN_STATUS_AUTH_TIMEOUT,
4861 GFP_KERNEL);
4862 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4863 completed ? "succeeded" : "failed");
4864 }
4865 brcmf_dbg(TRACE, "Exit\n");
4866 return 0;
4867 }
4868
4869 static s32
brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info * cfg,struct net_device * ndev,const struct brcmf_event_msg * e,void * data)4870 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4871 struct net_device *ndev,
4872 const struct brcmf_event_msg *e, void *data)
4873 {
4874 struct brcmf_if *ifp = netdev_priv(ndev);
4875 static int generation;
4876 u32 event = e->event_code;
4877 u32 reason = e->reason;
4878 struct station_info sinfo;
4879
4880 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4881 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4882 ndev != cfg_to_ndev(cfg)) {
4883 brcmf_dbg(CONN, "AP mode link down\n");
4884 complete(&cfg->vif_disabled);
4885 if (ifp->vif->mbss)
4886 brcmf_remove_interface(ifp->drvr, ifp->bssidx);
4887 return 0;
4888 }
4889
4890 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4891 (reason == BRCMF_E_STATUS_SUCCESS)) {
4892 memset(&sinfo, 0, sizeof(sinfo));
4893 if (!data) {
4894 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4895 return -EINVAL;
4896 }
4897 sinfo.assoc_req_ies = data;
4898 sinfo.assoc_req_ies_len = e->datalen;
4899 generation++;
4900 sinfo.generation = generation;
4901 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4902 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4903 (event == BRCMF_E_DEAUTH_IND) ||
4904 (event == BRCMF_E_DEAUTH)) {
4905 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4906 }
4907 return 0;
4908 }
4909
4910 static s32
brcmf_notify_connect_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4911 brcmf_notify_connect_status(struct brcmf_if *ifp,
4912 const struct brcmf_event_msg *e, void *data)
4913 {
4914 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4915 struct net_device *ndev = ifp->ndev;
4916 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4917 struct ieee80211_channel *chan;
4918 s32 err = 0;
4919
4920 if ((e->event_code == BRCMF_E_DEAUTH) ||
4921 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4922 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4923 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4924 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4925 }
4926
4927 if (brcmf_is_apmode(ifp->vif)) {
4928 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4929 } else if (brcmf_is_linkup(e)) {
4930 brcmf_dbg(CONN, "Linkup\n");
4931 if (brcmf_is_ibssmode(ifp->vif)) {
4932 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4933 memcpy(profile->bssid, e->addr, ETH_ALEN);
4934 wl_inform_ibss(cfg, ndev, e->addr);
4935 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4936 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4937 &ifp->vif->sme_state);
4938 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4939 &ifp->vif->sme_state);
4940 } else
4941 brcmf_bss_connect_done(cfg, ndev, e, true);
4942 } else if (brcmf_is_linkdown(e)) {
4943 brcmf_dbg(CONN, "Linkdown\n");
4944 if (!brcmf_is_ibssmode(ifp->vif)) {
4945 brcmf_bss_connect_done(cfg, ndev, e, false);
4946 }
4947 brcmf_link_down(ifp->vif, brcmf_map_fw_linkdown_reason(e));
4948 brcmf_init_prof(ndev_to_prof(ndev));
4949 if (ndev != cfg_to_ndev(cfg))
4950 complete(&cfg->vif_disabled);
4951 } else if (brcmf_is_nonetwork(cfg, e)) {
4952 if (brcmf_is_ibssmode(ifp->vif))
4953 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4954 &ifp->vif->sme_state);
4955 else
4956 brcmf_bss_connect_done(cfg, ndev, e, false);
4957 }
4958
4959 return err;
4960 }
4961
4962 static s32
brcmf_notify_roaming_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4963 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4964 const struct brcmf_event_msg *e, void *data)
4965 {
4966 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4967 u32 event = e->event_code;
4968 u32 status = e->status;
4969
4970 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4971 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4972 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4973 else
4974 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4975 }
4976
4977 return 0;
4978 }
4979
4980 static s32
brcmf_notify_mic_status(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4981 brcmf_notify_mic_status(struct brcmf_if *ifp,
4982 const struct brcmf_event_msg *e, void *data)
4983 {
4984 u16 flags = e->flags;
4985 enum nl80211_key_type key_type;
4986
4987 if (flags & BRCMF_EVENT_MSG_GROUP)
4988 key_type = NL80211_KEYTYPE_GROUP;
4989 else
4990 key_type = NL80211_KEYTYPE_PAIRWISE;
4991
4992 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4993 NULL, GFP_KERNEL);
4994
4995 return 0;
4996 }
4997
brcmf_notify_vif_event(struct brcmf_if * ifp,const struct brcmf_event_msg * e,void * data)4998 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4999 const struct brcmf_event_msg *e, void *data)
5000 {
5001 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5002 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
5003 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5004 struct brcmf_cfg80211_vif *vif;
5005
5006 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
5007 ifevent->action, ifevent->flags, ifevent->ifidx,
5008 ifevent->bssidx);
5009
5010 mutex_lock(&event->vif_event_lock);
5011 event->action = ifevent->action;
5012 vif = event->vif;
5013
5014 switch (ifevent->action) {
5015 case BRCMF_E_IF_ADD:
5016 /* waiting process may have timed out */
5017 if (!cfg->vif_event.vif) {
5018 mutex_unlock(&event->vif_event_lock);
5019 return -EBADF;
5020 }
5021
5022 ifp->vif = vif;
5023 vif->ifp = ifp;
5024 if (ifp->ndev) {
5025 vif->wdev.netdev = ifp->ndev;
5026 ifp->ndev->ieee80211_ptr = &vif->wdev;
5027 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
5028 }
5029 mutex_unlock(&event->vif_event_lock);
5030 wake_up(&event->vif_wq);
5031 return 0;
5032
5033 case BRCMF_E_IF_DEL:
5034 mutex_unlock(&event->vif_event_lock);
5035 /* event may not be upon user request */
5036 if (brcmf_cfg80211_vif_event_armed(cfg))
5037 wake_up(&event->vif_wq);
5038 return 0;
5039
5040 case BRCMF_E_IF_CHANGE:
5041 mutex_unlock(&event->vif_event_lock);
5042 wake_up(&event->vif_wq);
5043 return 0;
5044
5045 default:
5046 mutex_unlock(&event->vif_event_lock);
5047 break;
5048 }
5049 return -EINVAL;
5050 }
5051
brcmf_init_conf(struct brcmf_cfg80211_conf * conf)5052 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
5053 {
5054 conf->frag_threshold = (u32)-1;
5055 conf->rts_threshold = (u32)-1;
5056 conf->retry_short = (u32)-1;
5057 conf->retry_long = (u32)-1;
5058 conf->tx_power = -1;
5059 }
5060
brcmf_register_event_handlers(struct brcmf_cfg80211_info * cfg)5061 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
5062 {
5063 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
5064 brcmf_notify_connect_status);
5065 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
5066 brcmf_notify_connect_status);
5067 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
5068 brcmf_notify_connect_status);
5069 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
5070 brcmf_notify_connect_status);
5071 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
5072 brcmf_notify_connect_status);
5073 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
5074 brcmf_notify_connect_status);
5075 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
5076 brcmf_notify_roaming_status);
5077 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
5078 brcmf_notify_mic_status);
5079 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
5080 brcmf_notify_connect_status);
5081 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
5082 brcmf_notify_sched_scan_results);
5083 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
5084 brcmf_notify_vif_event);
5085 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
5086 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
5087 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
5088 brcmf_p2p_notify_listen_complete);
5089 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
5090 brcmf_p2p_notify_action_frame_rx);
5091 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
5092 brcmf_p2p_notify_action_tx_complete);
5093 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
5094 brcmf_p2p_notify_action_tx_complete);
5095 }
5096
brcmf_deinit_priv_mem(struct brcmf_cfg80211_info * cfg)5097 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
5098 {
5099 kfree(cfg->conf);
5100 cfg->conf = NULL;
5101 kfree(cfg->escan_ioctl_buf);
5102 cfg->escan_ioctl_buf = NULL;
5103 kfree(cfg->extra_buf);
5104 cfg->extra_buf = NULL;
5105 kfree(cfg->pmk_list);
5106 cfg->pmk_list = NULL;
5107 }
5108
brcmf_init_priv_mem(struct brcmf_cfg80211_info * cfg)5109 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
5110 {
5111 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5112 if (!cfg->conf)
5113 goto init_priv_mem_out;
5114 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5115 if (!cfg->escan_ioctl_buf)
5116 goto init_priv_mem_out;
5117 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5118 if (!cfg->extra_buf)
5119 goto init_priv_mem_out;
5120 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
5121 if (!cfg->pmk_list)
5122 goto init_priv_mem_out;
5123
5124 return 0;
5125
5126 init_priv_mem_out:
5127 brcmf_deinit_priv_mem(cfg);
5128
5129 return -ENOMEM;
5130 }
5131
wl_init_priv(struct brcmf_cfg80211_info * cfg)5132 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5133 {
5134 s32 err = 0;
5135
5136 cfg->scan_request = NULL;
5137 cfg->pwr_save = true;
5138 cfg->active_scan = true; /* we do active scan per default */
5139 cfg->dongle_up = false; /* dongle is not up yet */
5140 err = brcmf_init_priv_mem(cfg);
5141 if (err)
5142 return err;
5143 brcmf_register_event_handlers(cfg);
5144 mutex_init(&cfg->usr_sync);
5145 brcmf_init_escan(cfg);
5146 brcmf_init_conf(cfg->conf);
5147 init_completion(&cfg->vif_disabled);
5148 return err;
5149 }
5150
wl_deinit_priv(struct brcmf_cfg80211_info * cfg)5151 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5152 {
5153 cfg->dongle_up = false; /* dongle down */
5154 brcmf_abort_scanning(cfg);
5155 brcmf_deinit_priv_mem(cfg);
5156 }
5157
init_vif_event(struct brcmf_cfg80211_vif_event * event)5158 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5159 {
5160 init_waitqueue_head(&event->vif_wq);
5161 mutex_init(&event->vif_event_lock);
5162 }
5163
5164 static s32
brcmf_dongle_roam(struct brcmf_if * ifp,u32 bcn_timeout)5165 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
5166 {
5167 s32 err = 0;
5168 __le32 roamtrigger[2];
5169 __le32 roam_delta[2];
5170
5171 /*
5172 * Setup timeout if Beacons are lost and roam is
5173 * off to report link down
5174 */
5175 if (brcmf_roamoff) {
5176 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5177 if (err) {
5178 brcmf_err("bcn_timeout error (%d)\n", err);
5179 goto dongle_rom_out;
5180 }
5181 }
5182
5183 /*
5184 * Enable/Disable built-in roaming to allow supplicant
5185 * to take care of roaming
5186 */
5187 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5188 brcmf_roamoff ? "Off" : "On");
5189 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
5190 if (err) {
5191 brcmf_err("roam_off error (%d)\n", err);
5192 goto dongle_rom_out;
5193 }
5194
5195 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5196 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5197 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5198 (void *)roamtrigger, sizeof(roamtrigger));
5199 if (err) {
5200 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5201 goto dongle_rom_out;
5202 }
5203
5204 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5205 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5206 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5207 (void *)roam_delta, sizeof(roam_delta));
5208 if (err) {
5209 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5210 goto dongle_rom_out;
5211 }
5212
5213 dongle_rom_out:
5214 return err;
5215 }
5216
5217 static s32
brcmf_dongle_scantime(struct brcmf_if * ifp,s32 scan_assoc_time,s32 scan_unassoc_time,s32 scan_passive_time)5218 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5219 s32 scan_unassoc_time, s32 scan_passive_time)
5220 {
5221 s32 err = 0;
5222
5223 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5224 scan_assoc_time);
5225 if (err) {
5226 if (err == -EOPNOTSUPP)
5227 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5228 else
5229 brcmf_err("Scan assoc time error (%d)\n", err);
5230 goto dongle_scantime_out;
5231 }
5232 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5233 scan_unassoc_time);
5234 if (err) {
5235 if (err == -EOPNOTSUPP)
5236 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5237 else
5238 brcmf_err("Scan unassoc time error (%d)\n", err);
5239 goto dongle_scantime_out;
5240 }
5241
5242 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5243 scan_passive_time);
5244 if (err) {
5245 if (err == -EOPNOTSUPP)
5246 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5247 else
5248 brcmf_err("Scan passive time error (%d)\n", err);
5249 goto dongle_scantime_out;
5250 }
5251
5252 dongle_scantime_out:
5253 return err;
5254 }
5255
5256 /* Filter the list of channels received from firmware counting only
5257 * the 20MHz channels. The wiphy band data only needs those which get
5258 * flagged to indicate if they can take part in higher bandwidth.
5259 */
brcmf_count_20mhz_channels(struct brcmf_cfg80211_info * cfg,struct brcmf_chanspec_list * chlist,u32 chcnt[])5260 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5261 struct brcmf_chanspec_list *chlist,
5262 u32 chcnt[])
5263 {
5264 u32 total = le32_to_cpu(chlist->count);
5265 struct brcmu_chan ch;
5266 int i;
5267
5268 for (i = 0; i < total; i++) {
5269 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5270 cfg->d11inf.decchspec(&ch);
5271
5272 /* Firmware gives a ordered list. We skip non-20MHz
5273 * channels is 2G. For 5G we can abort upon reaching
5274 * a non-20MHz channel in the list.
5275 */
5276 if (ch.bw != BRCMU_CHAN_BW_20) {
5277 if (ch.band == BRCMU_CHAN_BAND_5G)
5278 break;
5279 else
5280 continue;
5281 }
5282
5283 if (ch.band == BRCMU_CHAN_BAND_2G)
5284 chcnt[0] += 1;
5285 else if (ch.band == BRCMU_CHAN_BAND_5G)
5286 chcnt[1] += 1;
5287 }
5288 }
5289
brcmf_update_bw40_channel_flag(struct ieee80211_channel * channel,struct brcmu_chan * ch)5290 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5291 struct brcmu_chan *ch)
5292 {
5293 u32 ht40_flag;
5294
5295 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5296 if (ch->sb == BRCMU_CHAN_SB_U) {
5297 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5298 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5299 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5300 } else {
5301 /* It should be one of
5302 * IEEE80211_CHAN_NO_HT40 or
5303 * IEEE80211_CHAN_NO_HT40PLUS
5304 */
5305 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5306 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5307 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5308 }
5309 }
5310
brcmf_construct_chaninfo(struct brcmf_cfg80211_info * cfg,u32 bw_cap[])5311 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5312 u32 bw_cap[])
5313 {
5314 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5315 struct ieee80211_supported_band *band;
5316 struct ieee80211_channel *channel;
5317 struct wiphy *wiphy;
5318 struct brcmf_chanspec_list *list;
5319 struct brcmu_chan ch;
5320 int err;
5321 u8 *pbuf;
5322 u32 i, j;
5323 u32 total;
5324 u32 chaninfo;
5325 u32 chcnt[2] = { 0, 0 };
5326 u32 index;
5327
5328 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5329
5330 if (pbuf == NULL)
5331 return -ENOMEM;
5332
5333 list = (struct brcmf_chanspec_list *)pbuf;
5334
5335 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5336 BRCMF_DCMD_MEDLEN);
5337 if (err) {
5338 brcmf_err("get chanspecs error (%d)\n", err);
5339 goto fail_pbuf;
5340 }
5341
5342 brcmf_count_20mhz_channels(cfg, list, chcnt);
5343 wiphy = cfg_to_wiphy(cfg);
5344 if (chcnt[0]) {
5345 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5346 GFP_KERNEL);
5347 if (band == NULL) {
5348 err = -ENOMEM;
5349 goto fail_pbuf;
5350 }
5351 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5352 GFP_KERNEL);
5353 if (band->channels == NULL) {
5354 kfree(band);
5355 err = -ENOMEM;
5356 goto fail_pbuf;
5357 }
5358 band->n_channels = 0;
5359 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5360 }
5361 if (chcnt[1]) {
5362 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5363 GFP_KERNEL);
5364 if (band == NULL) {
5365 err = -ENOMEM;
5366 goto fail_band2g;
5367 }
5368 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5369 GFP_KERNEL);
5370 if (band->channels == NULL) {
5371 kfree(band);
5372 err = -ENOMEM;
5373 goto fail_band2g;
5374 }
5375 band->n_channels = 0;
5376 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5377 }
5378
5379 total = le32_to_cpu(list->count);
5380 for (i = 0; i < total; i++) {
5381 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5382 cfg->d11inf.decchspec(&ch);
5383
5384 if (ch.band == BRCMU_CHAN_BAND_2G) {
5385 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5386 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5387 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5388 } else {
5389 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5390 continue;
5391 }
5392 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5393 ch.bw == BRCMU_CHAN_BW_40)
5394 continue;
5395 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5396 ch.bw == BRCMU_CHAN_BW_80)
5397 continue;
5398
5399 channel = band->channels;
5400 index = band->n_channels;
5401 for (j = 0; j < band->n_channels; j++) {
5402 if (channel[j].hw_value == ch.chnum) {
5403 index = j;
5404 break;
5405 }
5406 }
5407 channel[index].center_freq =
5408 ieee80211_channel_to_frequency(ch.chnum, band->band);
5409 channel[index].hw_value = ch.chnum;
5410
5411 /* assuming the chanspecs order is HT20,
5412 * HT40 upper, HT40 lower, and VHT80.
5413 */
5414 if (ch.bw == BRCMU_CHAN_BW_80) {
5415 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5416 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5417 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5418 } else {
5419 /* disable other bandwidths for now as mentioned
5420 * order assure they are enabled for subsequent
5421 * chanspecs.
5422 */
5423 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5424 IEEE80211_CHAN_NO_80MHZ;
5425 ch.bw = BRCMU_CHAN_BW_20;
5426 cfg->d11inf.encchspec(&ch);
5427 chaninfo = ch.chspec;
5428 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5429 &chaninfo);
5430 if (!err) {
5431 if (chaninfo & WL_CHAN_RADAR)
5432 channel[index].flags |=
5433 (IEEE80211_CHAN_RADAR |
5434 IEEE80211_CHAN_NO_IR);
5435 if (chaninfo & WL_CHAN_PASSIVE)
5436 channel[index].flags |=
5437 IEEE80211_CHAN_NO_IR;
5438 }
5439 }
5440 if (index == band->n_channels)
5441 band->n_channels++;
5442 }
5443 kfree(pbuf);
5444 return 0;
5445
5446 fail_band2g:
5447 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5448 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5449 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5450 fail_pbuf:
5451 kfree(pbuf);
5452 return err;
5453 }
5454
brcmf_enable_bw40_2g(struct brcmf_cfg80211_info * cfg)5455 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5456 {
5457 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5458 struct ieee80211_supported_band *band;
5459 struct brcmf_fil_bwcap_le band_bwcap;
5460 struct brcmf_chanspec_list *list;
5461 u8 *pbuf;
5462 u32 val;
5463 int err;
5464 struct brcmu_chan ch;
5465 u32 num_chan;
5466 int i, j;
5467
5468 /* verify support for bw_cap command */
5469 val = WLC_BAND_5G;
5470 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5471
5472 if (!err) {
5473 /* only set 2G bandwidth using bw_cap command */
5474 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5475 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5476 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5477 sizeof(band_bwcap));
5478 } else {
5479 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5480 val = WLC_N_BW_40ALL;
5481 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5482 }
5483
5484 if (!err) {
5485 /* update channel info in 2G band */
5486 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5487
5488 if (pbuf == NULL)
5489 return -ENOMEM;
5490
5491 ch.band = BRCMU_CHAN_BAND_2G;
5492 ch.bw = BRCMU_CHAN_BW_40;
5493 ch.sb = BRCMU_CHAN_SB_NONE;
5494 ch.chnum = 0;
5495 cfg->d11inf.encchspec(&ch);
5496
5497 /* pass encoded chanspec in query */
5498 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5499
5500 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5501 BRCMF_DCMD_MEDLEN);
5502 if (err) {
5503 brcmf_err("get chanspecs error (%d)\n", err);
5504 kfree(pbuf);
5505 return err;
5506 }
5507
5508 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5509 list = (struct brcmf_chanspec_list *)pbuf;
5510 num_chan = le32_to_cpu(list->count);
5511 for (i = 0; i < num_chan; i++) {
5512 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5513 cfg->d11inf.decchspec(&ch);
5514 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5515 continue;
5516 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5517 continue;
5518 for (j = 0; j < band->n_channels; j++) {
5519 if (band->channels[j].hw_value == ch.chnum)
5520 break;
5521 }
5522 if (WARN_ON(j == band->n_channels))
5523 continue;
5524
5525 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5526 }
5527 kfree(pbuf);
5528 }
5529 return err;
5530 }
5531
brcmf_get_bwcap(struct brcmf_if * ifp,u32 bw_cap[])5532 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5533 {
5534 u32 band, mimo_bwcap;
5535 int err;
5536
5537 band = WLC_BAND_2G;
5538 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5539 if (!err) {
5540 bw_cap[IEEE80211_BAND_2GHZ] = band;
5541 band = WLC_BAND_5G;
5542 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5543 if (!err) {
5544 bw_cap[IEEE80211_BAND_5GHZ] = band;
5545 return;
5546 }
5547 WARN_ON(1);
5548 return;
5549 }
5550 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5551 mimo_bwcap = 0;
5552 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5553 if (err)
5554 /* assume 20MHz if firmware does not give a clue */
5555 mimo_bwcap = WLC_N_BW_20ALL;
5556
5557 switch (mimo_bwcap) {
5558 case WLC_N_BW_40ALL:
5559 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5560 /* fall-thru */
5561 case WLC_N_BW_20IN2G_40IN5G:
5562 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5563 /* fall-thru */
5564 case WLC_N_BW_20ALL:
5565 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5566 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5567 break;
5568 default:
5569 brcmf_err("invalid mimo_bw_cap value\n");
5570 }
5571 }
5572
brcmf_update_ht_cap(struct ieee80211_supported_band * band,u32 bw_cap[2],u32 nchain)5573 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5574 u32 bw_cap[2], u32 nchain)
5575 {
5576 band->ht_cap.ht_supported = true;
5577 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5578 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5579 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5580 }
5581 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5582 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5583 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5584 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5585 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5586 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5587 }
5588
brcmf_get_mcs_map(u32 nchain,enum ieee80211_vht_mcs_support supp)5589 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5590 {
5591 u16 mcs_map;
5592 int i;
5593
5594 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5595 mcs_map = (mcs_map << 2) | supp;
5596
5597 return cpu_to_le16(mcs_map);
5598 }
5599
brcmf_update_vht_cap(struct ieee80211_supported_band * band,u32 bw_cap[2],u32 nchain)5600 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5601 u32 bw_cap[2], u32 nchain)
5602 {
5603 __le16 mcs_map;
5604
5605 /* not allowed in 2.4G band */
5606 if (band->band == IEEE80211_BAND_2GHZ)
5607 return;
5608
5609 band->vht_cap.vht_supported = true;
5610 /* 80MHz is mandatory */
5611 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5612 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5613 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5614 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5615 }
5616 /* all support 256-QAM */
5617 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5618 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5619 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5620 }
5621
brcmf_setup_wiphybands(struct wiphy * wiphy)5622 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5623 {
5624 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5625 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5626 u32 nmode = 0;
5627 u32 vhtmode = 0;
5628 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5629 u32 rxchain;
5630 u32 nchain;
5631 int err;
5632 s32 i;
5633 struct ieee80211_supported_band *band;
5634
5635 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5636 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5637 if (err) {
5638 brcmf_err("nmode error (%d)\n", err);
5639 } else {
5640 brcmf_get_bwcap(ifp, bw_cap);
5641 }
5642 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5643 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5644 bw_cap[IEEE80211_BAND_5GHZ]);
5645
5646 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5647 if (err) {
5648 brcmf_err("rxchain error (%d)\n", err);
5649 nchain = 1;
5650 } else {
5651 for (nchain = 0; rxchain; nchain++)
5652 rxchain = rxchain & (rxchain - 1);
5653 }
5654 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5655
5656 err = brcmf_construct_chaninfo(cfg, bw_cap);
5657 if (err) {
5658 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5659 return err;
5660 }
5661
5662 wiphy = cfg_to_wiphy(cfg);
5663 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5664 band = wiphy->bands[i];
5665 if (band == NULL)
5666 continue;
5667
5668 if (nmode)
5669 brcmf_update_ht_cap(band, bw_cap, nchain);
5670 if (vhtmode)
5671 brcmf_update_vht_cap(band, bw_cap, nchain);
5672 }
5673
5674 return 0;
5675 }
5676
5677 static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
5678 {
5679 .max = 1,
5680 .types = BIT(NL80211_IFTYPE_STATION) |
5681 BIT(NL80211_IFTYPE_ADHOC)
5682 },
5683 {
5684 .max = 4,
5685 .types = BIT(NL80211_IFTYPE_AP)
5686 },
5687 {
5688 .max = 1,
5689 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5690 BIT(NL80211_IFTYPE_P2P_GO)
5691 },
5692 {
5693 .max = 1,
5694 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5695 }
5696 };
5697
5698 static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
5699 {
5700 .max = 2,
5701 .types = BIT(NL80211_IFTYPE_STATION) |
5702 BIT(NL80211_IFTYPE_ADHOC) |
5703 BIT(NL80211_IFTYPE_AP)
5704 },
5705 {
5706 .max = 1,
5707 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5708 BIT(NL80211_IFTYPE_P2P_GO)
5709 },
5710 {
5711 .max = 1,
5712 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5713 }
5714 };
5715 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5716 {
5717 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5718 .num_different_channels = 1,
5719 .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
5720 .limits = brcmf_iface_limits_sbss,
5721 }
5722 };
5723
5724 static const struct ieee80211_txrx_stypes
5725 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5726 [NL80211_IFTYPE_STATION] = {
5727 .tx = 0xffff,
5728 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5729 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5730 },
5731 [NL80211_IFTYPE_P2P_CLIENT] = {
5732 .tx = 0xffff,
5733 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5734 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5735 },
5736 [NL80211_IFTYPE_P2P_GO] = {
5737 .tx = 0xffff,
5738 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5739 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5740 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5741 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5742 BIT(IEEE80211_STYPE_AUTH >> 4) |
5743 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5744 BIT(IEEE80211_STYPE_ACTION >> 4)
5745 },
5746 [NL80211_IFTYPE_P2P_DEVICE] = {
5747 .tx = 0xffff,
5748 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5749 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5750 }
5751 };
5752
brcmf_wiphy_pno_params(struct wiphy * wiphy)5753 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5754 {
5755 /* scheduled scan settings */
5756 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5757 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5758 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5759 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5760 }
5761
5762 #ifdef CONFIG_PM
5763 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5764 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5765 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5766 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5767 .pattern_min_len = 1,
5768 .max_pkt_offset = 1500,
5769 };
5770 #endif
5771
brcmf_wiphy_wowl_params(struct wiphy * wiphy)5772 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5773 {
5774 #ifdef CONFIG_PM
5775 /* wowl settings */
5776 wiphy->wowlan = &brcmf_wowlan_support;
5777 #endif
5778 }
5779
brcmf_setup_wiphy(struct wiphy * wiphy,struct brcmf_if * ifp)5780 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5781 {
5782 struct ieee80211_iface_combination ifc_combo;
5783 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5784 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5785 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5786 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5787 BIT(NL80211_IFTYPE_ADHOC) |
5788 BIT(NL80211_IFTYPE_AP) |
5789 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5790 BIT(NL80211_IFTYPE_P2P_GO) |
5791 BIT(NL80211_IFTYPE_P2P_DEVICE);
5792 /* need VSDB firmware feature for concurrent channels */
5793 ifc_combo = brcmf_iface_combos[0];
5794 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5795 ifc_combo.num_different_channels = 2;
5796 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
5797 ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
5798 ifc_combo.limits = brcmf_iface_limits_mbss;
5799 }
5800 wiphy->iface_combinations = kmemdup(&ifc_combo,
5801 sizeof(ifc_combo),
5802 GFP_KERNEL);
5803 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5804 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5805 wiphy->cipher_suites = __wl_cipher_suites;
5806 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5807 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5808 WIPHY_FLAG_OFFCHAN_TX |
5809 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5810 WIPHY_FLAG_SUPPORTS_TDLS;
5811 if (!brcmf_roamoff)
5812 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5813 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5814 wiphy->max_remain_on_channel_duration = 5000;
5815 brcmf_wiphy_pno_params(wiphy);
5816
5817 /* vendor commands/events support */
5818 wiphy->vendor_commands = brcmf_vendor_cmds;
5819 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5820
5821 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5822 brcmf_wiphy_wowl_params(wiphy);
5823
5824 return brcmf_setup_wiphybands(wiphy);
5825 }
5826
brcmf_config_dongle(struct brcmf_cfg80211_info * cfg)5827 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5828 {
5829 struct net_device *ndev;
5830 struct wireless_dev *wdev;
5831 struct brcmf_if *ifp;
5832 s32 power_mode;
5833 s32 err = 0;
5834
5835 if (cfg->dongle_up)
5836 return err;
5837
5838 ndev = cfg_to_ndev(cfg);
5839 wdev = ndev->ieee80211_ptr;
5840 ifp = netdev_priv(ndev);
5841
5842 /* make sure RF is ready for work */
5843 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5844
5845 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5846 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5847
5848 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5849 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5850 if (err)
5851 goto default_conf_out;
5852 brcmf_dbg(INFO, "power save set to %s\n",
5853 (power_mode ? "enabled" : "disabled"));
5854
5855 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5856 if (err)
5857 goto default_conf_out;
5858 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5859 NULL, NULL);
5860 if (err)
5861 goto default_conf_out;
5862
5863 brcmf_configure_arp_offload(ifp, true);
5864
5865 cfg->dongle_up = true;
5866 default_conf_out:
5867
5868 return err;
5869
5870 }
5871
__brcmf_cfg80211_up(struct brcmf_if * ifp)5872 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5873 {
5874 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5875
5876 return brcmf_config_dongle(ifp->drvr->config);
5877 }
5878
__brcmf_cfg80211_down(struct brcmf_if * ifp)5879 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5880 {
5881 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5882
5883 /*
5884 * While going down, if associated with AP disassociate
5885 * from AP to save power
5886 */
5887 if (check_vif_up(ifp->vif)) {
5888 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED);
5889
5890 /* Make sure WPA_Supplicant receives all the event
5891 generated due to DISASSOC call to the fw to keep
5892 the state fw and WPA_Supplicant state consistent
5893 */
5894 brcmf_delay(500);
5895 }
5896
5897 brcmf_abort_scanning(cfg);
5898 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5899
5900 return 0;
5901 }
5902
brcmf_cfg80211_up(struct net_device * ndev)5903 s32 brcmf_cfg80211_up(struct net_device *ndev)
5904 {
5905 struct brcmf_if *ifp = netdev_priv(ndev);
5906 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5907 s32 err = 0;
5908
5909 mutex_lock(&cfg->usr_sync);
5910 err = __brcmf_cfg80211_up(ifp);
5911 mutex_unlock(&cfg->usr_sync);
5912
5913 return err;
5914 }
5915
brcmf_cfg80211_down(struct net_device * ndev)5916 s32 brcmf_cfg80211_down(struct net_device *ndev)
5917 {
5918 struct brcmf_if *ifp = netdev_priv(ndev);
5919 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5920 s32 err = 0;
5921
5922 mutex_lock(&cfg->usr_sync);
5923 err = __brcmf_cfg80211_down(ifp);
5924 mutex_unlock(&cfg->usr_sync);
5925
5926 return err;
5927 }
5928
brcmf_cfg80211_get_iftype(struct brcmf_if * ifp)5929 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5930 {
5931 struct wireless_dev *wdev = &ifp->vif->wdev;
5932
5933 return wdev->iftype;
5934 }
5935
brcmf_get_vif_state_any(struct brcmf_cfg80211_info * cfg,unsigned long state)5936 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5937 unsigned long state)
5938 {
5939 struct brcmf_cfg80211_vif *vif;
5940
5941 list_for_each_entry(vif, &cfg->vif_list, list) {
5942 if (test_bit(state, &vif->sme_state))
5943 return true;
5944 }
5945 return false;
5946 }
5947
vif_event_equals(struct brcmf_cfg80211_vif_event * event,u8 action)5948 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5949 u8 action)
5950 {
5951 u8 evt_action;
5952
5953 mutex_lock(&event->vif_event_lock);
5954 evt_action = event->action;
5955 mutex_unlock(&event->vif_event_lock);
5956 return evt_action == action;
5957 }
5958
brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info * cfg,struct brcmf_cfg80211_vif * vif)5959 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5960 struct brcmf_cfg80211_vif *vif)
5961 {
5962 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5963
5964 mutex_lock(&event->vif_event_lock);
5965 event->vif = vif;
5966 event->action = 0;
5967 mutex_unlock(&event->vif_event_lock);
5968 }
5969
brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info * cfg)5970 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5971 {
5972 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5973 bool armed;
5974
5975 mutex_lock(&event->vif_event_lock);
5976 armed = event->vif != NULL;
5977 mutex_unlock(&event->vif_event_lock);
5978
5979 return armed;
5980 }
brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info * cfg,u8 action,ulong timeout)5981 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5982 u8 action, ulong timeout)
5983 {
5984 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5985
5986 return wait_event_timeout(event->vif_wq,
5987 vif_event_equals(event, action), timeout);
5988 }
5989
brcmf_cfg80211_reg_notifier(struct wiphy * wiphy,struct regulatory_request * req)5990 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
5991 struct regulatory_request *req)
5992 {
5993 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5994 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5995 struct brcmf_fil_country_le ccreq;
5996 int i;
5997
5998 brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator,
5999 req->alpha2[0], req->alpha2[1]);
6000
6001 /* ignore non-ISO3166 country codes */
6002 for (i = 0; i < sizeof(req->alpha2); i++)
6003 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
6004 brcmf_err("not a ISO3166 code\n");
6005 return;
6006 }
6007 memset(&ccreq, 0, sizeof(ccreq));
6008 ccreq.rev = cpu_to_le32(-1);
6009 memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2));
6010 brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
6011 }
6012
brcmf_free_wiphy(struct wiphy * wiphy)6013 static void brcmf_free_wiphy(struct wiphy *wiphy)
6014 {
6015 kfree(wiphy->iface_combinations);
6016 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6017 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
6018 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
6019 }
6020 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
6021 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
6022 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
6023 }
6024 wiphy_free(wiphy);
6025 }
6026
brcmf_cfg80211_attach(struct brcmf_pub * drvr,struct device * busdev)6027 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
6028 struct device *busdev)
6029 {
6030 struct net_device *ndev = drvr->iflist[0]->ndev;
6031 struct brcmf_cfg80211_info *cfg;
6032 struct wiphy *wiphy;
6033 struct brcmf_cfg80211_vif *vif;
6034 struct brcmf_if *ifp;
6035 s32 err = 0;
6036 s32 io_type;
6037 u16 *cap = NULL;
6038
6039 if (!ndev) {
6040 brcmf_err("ndev is invalid\n");
6041 return NULL;
6042 }
6043
6044 ifp = netdev_priv(ndev);
6045 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
6046 if (!wiphy) {
6047 brcmf_err("Could not allocate wiphy device\n");
6048 return NULL;
6049 }
6050 set_wiphy_dev(wiphy, busdev);
6051
6052 cfg = wiphy_priv(wiphy);
6053 cfg->wiphy = wiphy;
6054 cfg->pub = drvr;
6055 init_vif_event(&cfg->vif_event);
6056 INIT_LIST_HEAD(&cfg->vif_list);
6057
6058 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
6059 if (IS_ERR(vif))
6060 goto wiphy_out;
6061
6062 vif->ifp = ifp;
6063 vif->wdev.netdev = ndev;
6064 ndev->ieee80211_ptr = &vif->wdev;
6065 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
6066
6067 err = wl_init_priv(cfg);
6068 if (err) {
6069 brcmf_err("Failed to init iwm_priv (%d)\n", err);
6070 brcmf_free_vif(vif);
6071 goto wiphy_out;
6072 }
6073 ifp->vif = vif;
6074
6075 /* determine d11 io type before wiphy setup */
6076 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
6077 if (err) {
6078 brcmf_err("Failed to get D11 version (%d)\n", err);
6079 goto priv_out;
6080 }
6081 cfg->d11inf.io_type = (u8)io_type;
6082 brcmu_d11_attach(&cfg->d11inf);
6083
6084 err = brcmf_setup_wiphy(wiphy, ifp);
6085 if (err < 0)
6086 goto priv_out;
6087
6088 brcmf_dbg(INFO, "Registering custom regulatory\n");
6089 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
6090 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
6091 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
6092
6093 /* firmware defaults to 40MHz disabled in 2G band. We signal
6094 * cfg80211 here that we do and have it decide we can enable
6095 * it. But first check if device does support 2G operation.
6096 */
6097 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
6098 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
6099 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6100 }
6101 err = wiphy_register(wiphy);
6102 if (err < 0) {
6103 brcmf_err("Could not register wiphy device (%d)\n", err);
6104 goto priv_out;
6105 }
6106
6107 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
6108 * setup 40MHz in 2GHz band and enable OBSS scanning.
6109 */
6110 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
6111 err = brcmf_enable_bw40_2g(cfg);
6112 if (!err)
6113 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
6114 BRCMF_OBSS_COEX_AUTO);
6115 else
6116 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
6117 }
6118
6119 err = brcmf_p2p_attach(cfg);
6120 if (err) {
6121 brcmf_err("P2P initilisation failed (%d)\n", err);
6122 goto wiphy_unreg_out;
6123 }
6124 err = brcmf_btcoex_attach(cfg);
6125 if (err) {
6126 brcmf_err("BT-coex initialisation failed (%d)\n", err);
6127 brcmf_p2p_detach(&cfg->p2p);
6128 goto wiphy_unreg_out;
6129 }
6130
6131 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
6132 if (err) {
6133 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
6134 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6135 } else {
6136 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6137 brcmf_notify_tdls_peer_event);
6138 }
6139
6140 return cfg;
6141
6142 wiphy_unreg_out:
6143 wiphy_unregister(cfg->wiphy);
6144 priv_out:
6145 wl_deinit_priv(cfg);
6146 brcmf_free_vif(vif);
6147 wiphy_out:
6148 brcmf_free_wiphy(wiphy);
6149 return NULL;
6150 }
6151
brcmf_cfg80211_detach(struct brcmf_cfg80211_info * cfg)6152 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
6153 {
6154 if (!cfg)
6155 return;
6156
6157 WARN_ON(!list_empty(&cfg->vif_list));
6158 wiphy_unregister(cfg->wiphy);
6159 brcmf_btcoex_detach(cfg);
6160 brcmf_p2p_detach(&cfg->p2p);
6161 wl_deinit_priv(cfg);
6162 brcmf_free_wiphy(cfg->wiphy);
6163 }
6164