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mwifiex: complete last internal scan
[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / wl_cfg80211.c
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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 <net/cfg80211.h>
22#include <net/netlink.h>
23
24#include <brcmu_utils.h>
25#include <defs.h>
26#include <brcmu_wifi.h>
27#include "dhd.h"
28#include "dhd_dbg.h"
29#include "fwil_types.h"
30#include "p2p.h"
31#include "wl_cfg80211.h"
32#include "fwil.h"
33
34#define BRCMF_SCAN_IE_LEN_MAX 2048
35#define BRCMF_PNO_VERSION 2
36#define BRCMF_PNO_TIME 30
37#define BRCMF_PNO_REPEAT 4
38#define BRCMF_PNO_FREQ_EXPO_MAX 3
39#define BRCMF_PNO_MAX_PFN_COUNT 16
40#define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
41#define BRCMF_PNO_HIDDEN_BIT 2
42#define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
43#define BRCMF_PNO_SCAN_COMPLETE 1
44#define BRCMF_PNO_SCAN_INCOMPLETE 0
45
46#define BRCMF_IFACE_MAX_CNT 3
47
48#define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
49#define WPA_OUI_TYPE 1
50#define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
51#define WME_OUI_TYPE 2
52#define WPS_OUI_TYPE 4
53
54#define VS_IE_FIXED_HDR_LEN 6
55#define WPA_IE_VERSION_LEN 2
56#define WPA_IE_MIN_OUI_LEN 4
57#define WPA_IE_SUITE_COUNT_LEN 2
58
59#define WPA_CIPHER_NONE 0 /* None */
60#define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
61#define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
62#define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
63#define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
64
65#define RSN_AKM_NONE 0 /* None (IBSS) */
66#define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
67#define RSN_AKM_PSK 2 /* Pre-shared Key */
68#define RSN_CAP_LEN 2 /* Length of RSN capabilities */
69#define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
70
71#define VNDR_IE_CMD_LEN 4 /* length of the set command
72 * string :"add", "del" (+ NUL)
73 */
74#define VNDR_IE_COUNT_OFFSET 4
75#define VNDR_IE_PKTFLAG_OFFSET 8
76#define VNDR_IE_VSIE_OFFSET 12
77#define VNDR_IE_HDR_SIZE 12
78#define VNDR_IE_PARSE_LIMIT 5
79
80#define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
81#define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
82
83#define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
84#define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
85#define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
86
87#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
88 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
89
90static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
91{
92 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
93 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
94 vif->sme_state);
95 return false;
96 }
97 return true;
98}
99
100#define CHAN2G(_channel, _freq, _flags) { \
101 .band = IEEE80211_BAND_2GHZ, \
102 .center_freq = (_freq), \
103 .hw_value = (_channel), \
104 .flags = (_flags), \
105 .max_antenna_gain = 0, \
106 .max_power = 30, \
107}
108
109#define CHAN5G(_channel, _flags) { \
110 .band = IEEE80211_BAND_5GHZ, \
111 .center_freq = 5000 + (5 * (_channel)), \
112 .hw_value = (_channel), \
113 .flags = (_flags), \
114 .max_antenna_gain = 0, \
115 .max_power = 30, \
116}
117
118#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
119#define RATETAB_ENT(_rateid, _flags) \
120 { \
121 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
122 .hw_value = (_rateid), \
123 .flags = (_flags), \
124 }
125
126static struct ieee80211_rate __wl_rates[] = {
127 RATETAB_ENT(BRCM_RATE_1M, 0),
128 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
129 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
130 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
131 RATETAB_ENT(BRCM_RATE_6M, 0),
132 RATETAB_ENT(BRCM_RATE_9M, 0),
133 RATETAB_ENT(BRCM_RATE_12M, 0),
134 RATETAB_ENT(BRCM_RATE_18M, 0),
135 RATETAB_ENT(BRCM_RATE_24M, 0),
136 RATETAB_ENT(BRCM_RATE_36M, 0),
137 RATETAB_ENT(BRCM_RATE_48M, 0),
138 RATETAB_ENT(BRCM_RATE_54M, 0),
139};
140
141#define wl_a_rates (__wl_rates + 4)
142#define wl_a_rates_size 8
143#define wl_g_rates (__wl_rates + 0)
144#define wl_g_rates_size 12
145
146static struct ieee80211_channel __wl_2ghz_channels[] = {
147 CHAN2G(1, 2412, 0),
148 CHAN2G(2, 2417, 0),
149 CHAN2G(3, 2422, 0),
150 CHAN2G(4, 2427, 0),
151 CHAN2G(5, 2432, 0),
152 CHAN2G(6, 2437, 0),
153 CHAN2G(7, 2442, 0),
154 CHAN2G(8, 2447, 0),
155 CHAN2G(9, 2452, 0),
156 CHAN2G(10, 2457, 0),
157 CHAN2G(11, 2462, 0),
158 CHAN2G(12, 2467, 0),
159 CHAN2G(13, 2472, 0),
160 CHAN2G(14, 2484, 0),
161};
162
163static struct ieee80211_channel __wl_5ghz_a_channels[] = {
164 CHAN5G(34, 0), CHAN5G(36, 0),
165 CHAN5G(38, 0), CHAN5G(40, 0),
166 CHAN5G(42, 0), CHAN5G(44, 0),
167 CHAN5G(46, 0), CHAN5G(48, 0),
168 CHAN5G(52, 0), CHAN5G(56, 0),
169 CHAN5G(60, 0), CHAN5G(64, 0),
170 CHAN5G(100, 0), CHAN5G(104, 0),
171 CHAN5G(108, 0), CHAN5G(112, 0),
172 CHAN5G(116, 0), CHAN5G(120, 0),
173 CHAN5G(124, 0), CHAN5G(128, 0),
174 CHAN5G(132, 0), CHAN5G(136, 0),
175 CHAN5G(140, 0), CHAN5G(149, 0),
176 CHAN5G(153, 0), CHAN5G(157, 0),
177 CHAN5G(161, 0), CHAN5G(165, 0),
178 CHAN5G(184, 0), CHAN5G(188, 0),
179 CHAN5G(192, 0), CHAN5G(196, 0),
180 CHAN5G(200, 0), CHAN5G(204, 0),
181 CHAN5G(208, 0), CHAN5G(212, 0),
182 CHAN5G(216, 0),
183};
184
185static struct ieee80211_channel __wl_5ghz_n_channels[] = {
186 CHAN5G(32, 0), CHAN5G(34, 0),
187 CHAN5G(36, 0), CHAN5G(38, 0),
188 CHAN5G(40, 0), CHAN5G(42, 0),
189 CHAN5G(44, 0), CHAN5G(46, 0),
190 CHAN5G(48, 0), CHAN5G(50, 0),
191 CHAN5G(52, 0), CHAN5G(54, 0),
192 CHAN5G(56, 0), CHAN5G(58, 0),
193 CHAN5G(60, 0), CHAN5G(62, 0),
194 CHAN5G(64, 0), CHAN5G(66, 0),
195 CHAN5G(68, 0), CHAN5G(70, 0),
196 CHAN5G(72, 0), CHAN5G(74, 0),
197 CHAN5G(76, 0), CHAN5G(78, 0),
198 CHAN5G(80, 0), CHAN5G(82, 0),
199 CHAN5G(84, 0), CHAN5G(86, 0),
200 CHAN5G(88, 0), CHAN5G(90, 0),
201 CHAN5G(92, 0), CHAN5G(94, 0),
202 CHAN5G(96, 0), CHAN5G(98, 0),
203 CHAN5G(100, 0), CHAN5G(102, 0),
204 CHAN5G(104, 0), CHAN5G(106, 0),
205 CHAN5G(108, 0), CHAN5G(110, 0),
206 CHAN5G(112, 0), CHAN5G(114, 0),
207 CHAN5G(116, 0), CHAN5G(118, 0),
208 CHAN5G(120, 0), CHAN5G(122, 0),
209 CHAN5G(124, 0), CHAN5G(126, 0),
210 CHAN5G(128, 0), CHAN5G(130, 0),
211 CHAN5G(132, 0), CHAN5G(134, 0),
212 CHAN5G(136, 0), CHAN5G(138, 0),
213 CHAN5G(140, 0), CHAN5G(142, 0),
214 CHAN5G(144, 0), CHAN5G(145, 0),
215 CHAN5G(146, 0), CHAN5G(147, 0),
216 CHAN5G(148, 0), CHAN5G(149, 0),
217 CHAN5G(150, 0), CHAN5G(151, 0),
218 CHAN5G(152, 0), CHAN5G(153, 0),
219 CHAN5G(154, 0), CHAN5G(155, 0),
220 CHAN5G(156, 0), CHAN5G(157, 0),
221 CHAN5G(158, 0), CHAN5G(159, 0),
222 CHAN5G(160, 0), CHAN5G(161, 0),
223 CHAN5G(162, 0), CHAN5G(163, 0),
224 CHAN5G(164, 0), CHAN5G(165, 0),
225 CHAN5G(166, 0), CHAN5G(168, 0),
226 CHAN5G(170, 0), CHAN5G(172, 0),
227 CHAN5G(174, 0), CHAN5G(176, 0),
228 CHAN5G(178, 0), CHAN5G(180, 0),
229 CHAN5G(182, 0), CHAN5G(184, 0),
230 CHAN5G(186, 0), CHAN5G(188, 0),
231 CHAN5G(190, 0), CHAN5G(192, 0),
232 CHAN5G(194, 0), CHAN5G(196, 0),
233 CHAN5G(198, 0), CHAN5G(200, 0),
234 CHAN5G(202, 0), CHAN5G(204, 0),
235 CHAN5G(206, 0), CHAN5G(208, 0),
236 CHAN5G(210, 0), CHAN5G(212, 0),
237 CHAN5G(214, 0), CHAN5G(216, 0),
238 CHAN5G(218, 0), CHAN5G(220, 0),
239 CHAN5G(222, 0), CHAN5G(224, 0),
240 CHAN5G(226, 0), CHAN5G(228, 0),
241};
242
243static struct ieee80211_supported_band __wl_band_2ghz = {
244 .band = IEEE80211_BAND_2GHZ,
245 .channels = __wl_2ghz_channels,
246 .n_channels = ARRAY_SIZE(__wl_2ghz_channels),
247 .bitrates = wl_g_rates,
248 .n_bitrates = wl_g_rates_size,
249};
250
251static struct ieee80211_supported_band __wl_band_5ghz_a = {
252 .band = IEEE80211_BAND_5GHZ,
253 .channels = __wl_5ghz_a_channels,
254 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels),
255 .bitrates = wl_a_rates,
256 .n_bitrates = wl_a_rates_size,
257};
258
259static struct ieee80211_supported_band __wl_band_5ghz_n = {
260 .band = IEEE80211_BAND_5GHZ,
261 .channels = __wl_5ghz_n_channels,
262 .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels),
263 .bitrates = wl_a_rates,
264 .n_bitrates = wl_a_rates_size,
265};
266
267static const u32 __wl_cipher_suites[] = {
268 WLAN_CIPHER_SUITE_WEP40,
269 WLAN_CIPHER_SUITE_WEP104,
270 WLAN_CIPHER_SUITE_TKIP,
271 WLAN_CIPHER_SUITE_CCMP,
272 WLAN_CIPHER_SUITE_AES_CMAC,
273};
274
275/* Vendor specific ie. id = 221, oui and type defines exact ie */
276struct brcmf_vs_tlv {
277 u8 id;
278 u8 len;
279 u8 oui[3];
280 u8 oui_type;
281};
282
283struct parsed_vndr_ie_info {
284 u8 *ie_ptr;
285 u32 ie_len; /* total length including id & length field */
286 struct brcmf_vs_tlv vndrie;
287};
288
289struct parsed_vndr_ies {
290 u32 count;
291 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
292};
293
294/* Quarter dBm units to mW
295 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
296 * Table is offset so the last entry is largest mW value that fits in
297 * a u16.
298 */
299
300#define QDBM_OFFSET 153 /* Offset for first entry */
301#define QDBM_TABLE_LEN 40 /* Table size */
302
303/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
304 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
305 */
306#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
307
308/* Largest mW value that will round down to the last table entry,
309 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
310 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
311 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
312 */
313#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
314
315static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
316/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
317/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
318/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
319/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
320/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
321/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
322};
323
324static u16 brcmf_qdbm_to_mw(u8 qdbm)
325{
326 uint factor = 1;
327 int idx = qdbm - QDBM_OFFSET;
328
329 if (idx >= QDBM_TABLE_LEN)
330 /* clamp to max u16 mW value */
331 return 0xFFFF;
332
333 /* scale the qdBm index up to the range of the table 0-40
334 * where an offset of 40 qdBm equals a factor of 10 mW.
335 */
336 while (idx < 0) {
337 idx += 40;
338 factor *= 10;
339 }
340
341 /* return the mW value scaled down to the correct factor of 10,
342 * adding in factor/2 to get proper rounding.
343 */
344 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
345}
346
347static u8 brcmf_mw_to_qdbm(u16 mw)
348{
349 u8 qdbm;
350 int offset;
351 uint mw_uint = mw;
352 uint boundary;
353
354 /* handle boundary case */
355 if (mw_uint <= 1)
356 return 0;
357
358 offset = QDBM_OFFSET;
359
360 /* move mw into the range of the table */
361 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
362 mw_uint *= 10;
363 offset -= 40;
364 }
365
366 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
367 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
368 nqdBm_to_mW_map[qdbm]) / 2;
369 if (mw_uint < boundary)
370 break;
371 }
372
373 qdbm += (u8) offset;
374
375 return qdbm;
376}
377
378u16 channel_to_chanspec(struct ieee80211_channel *ch)
379{
380 u16 chanspec;
381
382 chanspec = ieee80211_frequency_to_channel(ch->center_freq);
383 chanspec &= WL_CHANSPEC_CHAN_MASK;
384
385 if (ch->band == IEEE80211_BAND_2GHZ)
386 chanspec |= WL_CHANSPEC_BAND_2G;
387 else
388 chanspec |= WL_CHANSPEC_BAND_5G;
389
390 chanspec |= WL_CHANSPEC_BW_20;
391 chanspec |= WL_CHANSPEC_CTL_SB_NONE;
392
393 return chanspec;
394}
395
396/* Traverse a string of 1-byte tag/1-byte length/variable-length value
397 * triples, returning a pointer to the substring whose first element
398 * matches tag
399 */
400struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
401{
402 struct brcmf_tlv *elt;
403 int totlen;
404
405 elt = (struct brcmf_tlv *)buf;
406 totlen = buflen;
407
408 /* find tagged parameter */
409 while (totlen >= TLV_HDR_LEN) {
410 int len = elt->len;
411
412 /* validate remaining totlen */
413 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
414 return elt;
415
416 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
417 totlen -= (len + TLV_HDR_LEN);
418 }
419
420 return NULL;
421}
422
423/* Is any of the tlvs the expected entry? If
424 * not update the tlvs buffer pointer/length.
425 */
426static bool
427brcmf_tlv_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len,
428 u8 *oui, u32 oui_len, u8 type)
429{
430 /* If the contents match the OUI and the type */
431 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
432 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
433 type == ie[TLV_BODY_OFF + oui_len]) {
434 return true;
435 }
436
437 if (tlvs == NULL)
438 return false;
439 /* point to the next ie */
440 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
441 /* calculate the length of the rest of the buffer */
442 *tlvs_len -= (int)(ie - *tlvs);
443 /* update the pointer to the start of the buffer */
444 *tlvs = ie;
445
446 return false;
447}
448
449static struct brcmf_vs_tlv *
450brcmf_find_wpaie(u8 *parse, u32 len)
451{
452 struct brcmf_tlv *ie;
453
454 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
455 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
456 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
457 return (struct brcmf_vs_tlv *)ie;
458 }
459 return NULL;
460}
461
462static struct brcmf_vs_tlv *
463brcmf_find_wpsie(u8 *parse, u32 len)
464{
465 struct brcmf_tlv *ie;
466
467 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
468 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
469 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
470 return (struct brcmf_vs_tlv *)ie;
471 }
472 return NULL;
473}
474
475
476static void convert_key_from_CPU(struct brcmf_wsec_key *key,
477 struct brcmf_wsec_key_le *key_le)
478{
479 key_le->index = cpu_to_le32(key->index);
480 key_le->len = cpu_to_le32(key->len);
481 key_le->algo = cpu_to_le32(key->algo);
482 key_le->flags = cpu_to_le32(key->flags);
483 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
484 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
485 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
486 memcpy(key_le->data, key->data, sizeof(key->data));
487 memcpy(key_le->ea, key->ea, sizeof(key->ea));
488}
489
490static int
491send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
492{
493 int err;
494 struct brcmf_wsec_key_le key_le;
495
496 convert_key_from_CPU(key, &key_le);
497
498 brcmf_netdev_wait_pend8021x(ndev);
499
500 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
501 sizeof(key_le));
502
503 if (err)
504 brcmf_err("wsec_key error (%d)\n", err);
505 return err;
506}
507
508static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
509 const char *name,
510 enum nl80211_iftype type,
511 u32 *flags,
512 struct vif_params *params)
513{
514 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
515 switch (type) {
516 case NL80211_IFTYPE_ADHOC:
517 case NL80211_IFTYPE_STATION:
518 case NL80211_IFTYPE_AP:
519 case NL80211_IFTYPE_AP_VLAN:
520 case NL80211_IFTYPE_WDS:
521 case NL80211_IFTYPE_MONITOR:
522 case NL80211_IFTYPE_MESH_POINT:
523 return ERR_PTR(-EOPNOTSUPP);
524 case NL80211_IFTYPE_P2P_CLIENT:
525 case NL80211_IFTYPE_P2P_GO:
526 return brcmf_p2p_add_vif(wiphy, name, type, flags, params);
527 case NL80211_IFTYPE_UNSPECIFIED:
528 case NL80211_IFTYPE_P2P_DEVICE:
529 default:
530 return ERR_PTR(-EINVAL);
531 }
532}
533
534void brcmf_set_mpc(struct net_device *ndev, int mpc)
535{
536 struct brcmf_if *ifp = netdev_priv(ndev);
537 s32 err = 0;
538
539 if (check_vif_up(ifp->vif)) {
540 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
541 if (err) {
542 brcmf_err("fail to set mpc\n");
543 return;
544 }
545 brcmf_dbg(INFO, "MPC : %d\n", mpc);
546 }
547}
548
549s32
550brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
551 struct net_device *ndev,
552 bool aborted, bool fw_abort)
553{
554 struct brcmf_scan_params_le params_le;
555 struct cfg80211_scan_request *scan_request;
556 s32 err = 0;
557
558 brcmf_dbg(SCAN, "Enter\n");
559
560 /* clear scan request, because the FW abort can cause a second call */
561 /* to this functon and might cause a double cfg80211_scan_done */
562 scan_request = cfg->scan_request;
563 cfg->scan_request = NULL;
564
565 if (timer_pending(&cfg->escan_timeout))
566 del_timer_sync(&cfg->escan_timeout);
567
568 if (fw_abort) {
569 /* Do a scan abort to stop the driver's scan engine */
570 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
571 memset(&params_le, 0, sizeof(params_le));
572 memset(params_le.bssid, 0xFF, ETH_ALEN);
573 params_le.bss_type = DOT11_BSSTYPE_ANY;
574 params_le.scan_type = 0;
575 params_le.channel_num = cpu_to_le32(1);
576 params_le.nprobes = cpu_to_le32(1);
577 params_le.active_time = cpu_to_le32(-1);
578 params_le.passive_time = cpu_to_le32(-1);
579 params_le.home_time = cpu_to_le32(-1);
580 /* Scan is aborted by setting channel_list[0] to -1 */
581 params_le.channel_list[0] = cpu_to_le16(-1);
582 /* E-Scan (or anyother type) can be aborted by SCAN */
583 err = brcmf_fil_cmd_data_set(netdev_priv(ndev), BRCMF_C_SCAN,
584 &params_le, sizeof(params_le));
585 if (err)
586 brcmf_err("Scan abort failed\n");
587 }
588 /*
589 * e-scan can be initiated by scheduled scan
590 * which takes precedence.
591 */
592 if (cfg->sched_escan) {
593 brcmf_dbg(SCAN, "scheduled scan completed\n");
594 cfg->sched_escan = false;
595 if (!aborted)
596 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
597 brcmf_set_mpc(ndev, 1);
598 } else if (scan_request) {
599 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
600 aborted ? "Aborted" : "Done");
601 cfg80211_scan_done(scan_request, aborted);
602 brcmf_set_mpc(ndev, 1);
603 }
604 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
605 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
606
607 return err;
608}
609
610static
611int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
612{
613 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
614 struct net_device *ndev = wdev->netdev;
615
616 /* vif event pending in firmware */
617 if (brcmf_cfg80211_vif_event_armed(cfg))
618 return -EBUSY;
619
620 if (ndev) {
621 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
622 cfg->escan_info.ndev == ndev)
623 brcmf_notify_escan_complete(cfg, ndev, true,
624 true);
625
626 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
627 }
628
629 switch (wdev->iftype) {
630 case NL80211_IFTYPE_ADHOC:
631 case NL80211_IFTYPE_STATION:
632 case NL80211_IFTYPE_AP:
633 case NL80211_IFTYPE_AP_VLAN:
634 case NL80211_IFTYPE_WDS:
635 case NL80211_IFTYPE_MONITOR:
636 case NL80211_IFTYPE_MESH_POINT:
637 return -EOPNOTSUPP;
638 case NL80211_IFTYPE_P2P_CLIENT:
639 case NL80211_IFTYPE_P2P_GO:
640 return brcmf_p2p_del_vif(wiphy, wdev);
641 case NL80211_IFTYPE_UNSPECIFIED:
642 case NL80211_IFTYPE_P2P_DEVICE:
643 default:
644 return -EINVAL;
645 }
646 return -EOPNOTSUPP;
647}
648
649static s32
650brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
651 enum nl80211_iftype type, u32 *flags,
652 struct vif_params *params)
653{
654 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
655 struct brcmf_if *ifp = netdev_priv(ndev);
656 struct brcmf_cfg80211_vif *vif = ifp->vif;
657 s32 infra = 0;
658 s32 ap = 0;
659 s32 err = 0;
660
661 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
662
663 switch (type) {
664 case NL80211_IFTYPE_MONITOR:
665 case NL80211_IFTYPE_WDS:
666 brcmf_err("type (%d) : currently we do not support this type\n",
667 type);
668 return -EOPNOTSUPP;
669 case NL80211_IFTYPE_ADHOC:
670 vif->mode = WL_MODE_IBSS;
671 infra = 0;
672 break;
673 case NL80211_IFTYPE_STATION:
674 /* Ignore change for p2p IF. Unclear why supplicant does this */
675 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
676 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
677 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
678 /* WAR: It is unexpected to get a change of VIF for P2P
679 * IF, but it happens. The request can not be handled
680 * but returning EPERM causes a crash. Returning 0
681 * without setting ieee80211_ptr->iftype causes trace
682 * (WARN_ON) but it works with wpa_supplicant
683 */
684 return 0;
685 }
686 vif->mode = WL_MODE_BSS;
687 infra = 1;
688 break;
689 case NL80211_IFTYPE_AP:
690 case NL80211_IFTYPE_P2P_GO:
691 vif->mode = WL_MODE_AP;
692 ap = 1;
693 break;
694 default:
695 err = -EINVAL;
696 goto done;
697 }
698
699 if (ap) {
700 if (type == NL80211_IFTYPE_P2P_GO) {
701 brcmf_dbg(INFO, "IF Type = P2P GO\n");
702 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
703 }
704 if (!err) {
705 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
706 brcmf_dbg(INFO, "IF Type = AP\n");
707 }
708 } else {
709 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
710 if (err) {
711 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
712 err = -EAGAIN;
713 goto done;
714 }
715 brcmf_dbg(INFO, "IF Type = %s\n", (vif->mode == WL_MODE_IBSS) ?
716 "Adhoc" : "Infra");
717 }
718 ndev->ieee80211_ptr->iftype = type;
719
720done:
721 brcmf_dbg(TRACE, "Exit\n");
722
723 return err;
724}
725
726static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
727 struct cfg80211_scan_request *request)
728{
729 u32 n_ssids;
730 u32 n_channels;
731 s32 i;
732 s32 offset;
733 u16 chanspec;
734 char *ptr;
735 struct brcmf_ssid_le ssid_le;
736
737 memset(params_le->bssid, 0xFF, ETH_ALEN);
738 params_le->bss_type = DOT11_BSSTYPE_ANY;
739 params_le->scan_type = 0;
740 params_le->channel_num = 0;
741 params_le->nprobes = cpu_to_le32(-1);
742 params_le->active_time = cpu_to_le32(-1);
743 params_le->passive_time = cpu_to_le32(-1);
744 params_le->home_time = cpu_to_le32(-1);
745 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
746
747 /* if request is null exit so it will be all channel broadcast scan */
748 if (!request)
749 return;
750
751 n_ssids = request->n_ssids;
752 n_channels = request->n_channels;
753 /* Copy channel array if applicable */
754 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
755 n_channels);
756 if (n_channels > 0) {
757 for (i = 0; i < n_channels; i++) {
758 chanspec = channel_to_chanspec(request->channels[i]);
759 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
760 request->channels[i]->hw_value, chanspec);
761 params_le->channel_list[i] = cpu_to_le16(chanspec);
762 }
763 } else {
764 brcmf_dbg(SCAN, "Scanning all channels\n");
765 }
766 /* Copy ssid array if applicable */
767 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
768 if (n_ssids > 0) {
769 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
770 n_channels * sizeof(u16);
771 offset = roundup(offset, sizeof(u32));
772 ptr = (char *)params_le + offset;
773 for (i = 0; i < n_ssids; i++) {
774 memset(&ssid_le, 0, sizeof(ssid_le));
775 ssid_le.SSID_len =
776 cpu_to_le32(request->ssids[i].ssid_len);
777 memcpy(ssid_le.SSID, request->ssids[i].ssid,
778 request->ssids[i].ssid_len);
779 if (!ssid_le.SSID_len)
780 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
781 else
782 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
783 i, ssid_le.SSID, ssid_le.SSID_len);
784 memcpy(ptr, &ssid_le, sizeof(ssid_le));
785 ptr += sizeof(ssid_le);
786 }
787 } else {
788 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
789 if ((request->ssids) && request->ssids->ssid_len) {
790 brcmf_dbg(SCAN, "SSID %s len=%d\n",
791 params_le->ssid_le.SSID,
792 request->ssids->ssid_len);
793 params_le->ssid_le.SSID_len =
794 cpu_to_le32(request->ssids->ssid_len);
795 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
796 request->ssids->ssid_len);
797 }
798 }
799 /* Adding mask to channel numbers */
800 params_le->channel_num =
801 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
802 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
803}
804
805static s32
806brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
807 struct cfg80211_scan_request *request, u16 action)
808{
809 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
810 offsetof(struct brcmf_escan_params_le, params_le);
811 struct brcmf_escan_params_le *params;
812 s32 err = 0;
813
814 brcmf_dbg(SCAN, "E-SCAN START\n");
815
816 if (request != NULL) {
817 /* Allocate space for populating ssids in struct */
818 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
819
820 /* Allocate space for populating ssids in struct */
821 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
822 }
823
824 params = kzalloc(params_size, GFP_KERNEL);
825 if (!params) {
826 err = -ENOMEM;
827 goto exit;
828 }
829 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
830 brcmf_escan_prep(&params->params_le, request);
831 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
832 params->action = cpu_to_le16(action);
833 params->sync_id = cpu_to_le16(0x1234);
834
835 err = brcmf_fil_iovar_data_set(netdev_priv(ndev), "escan",
836 params, params_size);
837 if (err) {
838 if (err == -EBUSY)
839 brcmf_dbg(INFO, "system busy : escan canceled\n");
840 else
841 brcmf_err("error (%d)\n", err);
842 }
843
844 kfree(params);
845exit:
846 return err;
847}
848
849static s32
850brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
851 struct net_device *ndev, struct cfg80211_scan_request *request)
852{
853 s32 err;
854 u32 passive_scan;
855 struct brcmf_scan_results *results;
856 struct escan_info *escan = &cfg->escan_info;
857
858 brcmf_dbg(SCAN, "Enter\n");
859 escan->ndev = ndev;
860 escan->wiphy = wiphy;
861 escan->escan_state = WL_ESCAN_STATE_SCANNING;
862 passive_scan = cfg->active_scan ? 0 : 1;
863 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PASSIVE_SCAN,
864 passive_scan);
865 if (err) {
866 brcmf_err("error (%d)\n", err);
867 return err;
868 }
869 brcmf_set_mpc(ndev, 0);
870 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
871 results->version = 0;
872 results->count = 0;
873 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
874
875 err = escan->run(cfg, ndev, request, WL_ESCAN_ACTION_START);
876 if (err)
877 brcmf_set_mpc(ndev, 1);
878 return err;
879}
880
881static s32
882brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
883 struct cfg80211_scan_request *request,
884 struct cfg80211_ssid *this_ssid)
885{
886 struct brcmf_if *ifp = netdev_priv(ndev);
887 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
888 struct cfg80211_ssid *ssids;
889 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
890 u32 passive_scan;
891 bool escan_req;
892 bool spec_scan;
893 s32 err;
894 u32 SSID_len;
895
896 brcmf_dbg(SCAN, "START ESCAN\n");
897
898 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
899 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
900 return -EAGAIN;
901 }
902 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
903 brcmf_err("Scanning being aborted: status (%lu)\n",
904 cfg->scan_status);
905 return -EAGAIN;
906 }
907 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
908 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
909 return -EAGAIN;
910 }
911
912 /* If scan req comes for p2p0, send it over primary I/F */
913 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) {
914 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
915 ndev = ifp->ndev;
916 }
917
918 /* Arm scan timeout timer */
919 mod_timer(&cfg->escan_timeout, jiffies +
920 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
921
922 escan_req = false;
923 if (request) {
924 /* scan bss */
925 ssids = request->ssids;
926 escan_req = true;
927 } else {
928 /* scan in ibss */
929 /* we don't do escan in ibss */
930 ssids = this_ssid;
931 }
932
933 cfg->scan_request = request;
934 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
935 if (escan_req) {
936 cfg->escan_info.run = brcmf_run_escan;
937 err = brcmf_p2p_scan_prep(wiphy, request, ifp->vif);
938 if (err)
939 goto scan_out;
940
941 err = brcmf_do_escan(cfg, wiphy, ndev, request);
942 if (err)
943 goto scan_out;
944 } else {
945 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
946 ssids->ssid, ssids->ssid_len);
947 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
948 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
949 sr->ssid_le.SSID_len = cpu_to_le32(0);
950 spec_scan = false;
951 if (SSID_len) {
952 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
953 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
954 spec_scan = true;
955 } else
956 brcmf_dbg(SCAN, "Broadcast scan\n");
957
958 passive_scan = cfg->active_scan ? 0 : 1;
959 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
960 passive_scan);
961 if (err) {
962 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
963 goto scan_out;
964 }
965 brcmf_set_mpc(ndev, 0);
966 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
967 &sr->ssid_le, sizeof(sr->ssid_le));
968 if (err) {
969 if (err == -EBUSY)
970 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
971 sr->ssid_le.SSID);
972 else
973 brcmf_err("WLC_SCAN error (%d)\n", err);
974
975 brcmf_set_mpc(ndev, 1);
976 goto scan_out;
977 }
978 }
979
980 return 0;
981
982scan_out:
983 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
984 if (timer_pending(&cfg->escan_timeout))
985 del_timer_sync(&cfg->escan_timeout);
986 cfg->scan_request = NULL;
987 return err;
988}
989
990static s32
991brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
992{
993 struct net_device *ndev = request->wdev->netdev;
994 s32 err = 0;
995
996 brcmf_dbg(TRACE, "Enter\n");
997
998 if (!check_vif_up(container_of(request->wdev,
999 struct brcmf_cfg80211_vif, wdev)))
1000 return -EIO;
1001
1002 err = brcmf_cfg80211_escan(wiphy, ndev, request, NULL);
1003
1004 if (err)
1005 brcmf_err("scan error (%d)\n", err);
1006
1007 brcmf_dbg(TRACE, "Exit\n");
1008 return err;
1009}
1010
1011static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1012{
1013 s32 err = 0;
1014
1015 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1016 rts_threshold);
1017 if (err)
1018 brcmf_err("Error (%d)\n", err);
1019
1020 return err;
1021}
1022
1023static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1024{
1025 s32 err = 0;
1026
1027 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1028 frag_threshold);
1029 if (err)
1030 brcmf_err("Error (%d)\n", err);
1031
1032 return err;
1033}
1034
1035static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1036{
1037 s32 err = 0;
1038 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1039
1040 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1041 if (err) {
1042 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1043 return err;
1044 }
1045 return err;
1046}
1047
1048static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1049{
1050 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1051 struct net_device *ndev = cfg_to_ndev(cfg);
1052 struct brcmf_if *ifp = netdev_priv(ndev);
1053 s32 err = 0;
1054
1055 brcmf_dbg(TRACE, "Enter\n");
1056 if (!check_vif_up(ifp->vif))
1057 return -EIO;
1058
1059 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1060 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1061 cfg->conf->rts_threshold = wiphy->rts_threshold;
1062 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1063 if (!err)
1064 goto done;
1065 }
1066 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1067 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1068 cfg->conf->frag_threshold = wiphy->frag_threshold;
1069 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1070 if (!err)
1071 goto done;
1072 }
1073 if (changed & WIPHY_PARAM_RETRY_LONG
1074 && (cfg->conf->retry_long != wiphy->retry_long)) {
1075 cfg->conf->retry_long = wiphy->retry_long;
1076 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1077 if (!err)
1078 goto done;
1079 }
1080 if (changed & WIPHY_PARAM_RETRY_SHORT
1081 && (cfg->conf->retry_short != wiphy->retry_short)) {
1082 cfg->conf->retry_short = wiphy->retry_short;
1083 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1084 if (!err)
1085 goto done;
1086 }
1087
1088done:
1089 brcmf_dbg(TRACE, "Exit\n");
1090 return err;
1091}
1092
1093static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1094{
1095 memset(prof, 0, sizeof(*prof));
1096}
1097
1098static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1099{
1100 s32 err = 0;
1101
1102 brcmf_dbg(TRACE, "Enter\n");
1103
1104 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1105 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1106 err = brcmf_fil_cmd_data_set(vif->ifp,
1107 BRCMF_C_DISASSOC, NULL, 0);
1108 if (err)
1109 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1110 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1111 }
1112 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1113 brcmf_dbg(TRACE, "Exit\n");
1114}
1115
1116static s32
1117brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1118 struct cfg80211_ibss_params *params)
1119{
1120 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1121 struct brcmf_if *ifp = netdev_priv(ndev);
1122 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1123 struct brcmf_join_params join_params;
1124 size_t join_params_size = 0;
1125 s32 err = 0;
1126 s32 wsec = 0;
1127 s32 bcnprd;
1128 u16 chanspec;
1129
1130 brcmf_dbg(TRACE, "Enter\n");
1131 if (!check_vif_up(ifp->vif))
1132 return -EIO;
1133
1134 if (params->ssid)
1135 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1136 else {
1137 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1138 return -EOPNOTSUPP;
1139 }
1140
1141 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1142
1143 if (params->bssid)
1144 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1145 else
1146 brcmf_dbg(CONN, "No BSSID specified\n");
1147
1148 if (params->chandef.chan)
1149 brcmf_dbg(CONN, "channel: %d\n",
1150 params->chandef.chan->center_freq);
1151 else
1152 brcmf_dbg(CONN, "no channel specified\n");
1153
1154 if (params->channel_fixed)
1155 brcmf_dbg(CONN, "fixed channel required\n");
1156 else
1157 brcmf_dbg(CONN, "no fixed channel required\n");
1158
1159 if (params->ie && params->ie_len)
1160 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1161 else
1162 brcmf_dbg(CONN, "no ie specified\n");
1163
1164 if (params->beacon_interval)
1165 brcmf_dbg(CONN, "beacon interval: %d\n",
1166 params->beacon_interval);
1167 else
1168 brcmf_dbg(CONN, "no beacon interval specified\n");
1169
1170 if (params->basic_rates)
1171 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1172 else
1173 brcmf_dbg(CONN, "no basic rates specified\n");
1174
1175 if (params->privacy)
1176 brcmf_dbg(CONN, "privacy required\n");
1177 else
1178 brcmf_dbg(CONN, "no privacy required\n");
1179
1180 /* Configure Privacy for starter */
1181 if (params->privacy)
1182 wsec |= WEP_ENABLED;
1183
1184 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1185 if (err) {
1186 brcmf_err("wsec failed (%d)\n", err);
1187 goto done;
1188 }
1189
1190 /* Configure Beacon Interval for starter */
1191 if (params->beacon_interval)
1192 bcnprd = params->beacon_interval;
1193 else
1194 bcnprd = 100;
1195
1196 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1197 if (err) {
1198 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1199 goto done;
1200 }
1201
1202 /* Configure required join parameter */
1203 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1204
1205 /* SSID */
1206 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1207 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1208 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1209 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1210 join_params_size = sizeof(join_params.ssid_le);
1211
1212 /* BSSID */
1213 if (params->bssid) {
1214 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1215 join_params_size = sizeof(join_params.ssid_le) +
1216 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1217 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1218 } else {
1219 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1220 memset(profile->bssid, 0, ETH_ALEN);
1221 }
1222
1223 /* Channel */
1224 if (params->chandef.chan) {
1225 u32 target_channel;
1226
1227 cfg->channel =
1228 ieee80211_frequency_to_channel(
1229 params->chandef.chan->center_freq);
1230 if (params->channel_fixed) {
1231 /* adding chanspec */
1232 chanspec = channel_to_chanspec(params->chandef.chan);
1233 join_params.params_le.chanspec_list[0] =
1234 cpu_to_le16(chanspec);
1235 join_params.params_le.chanspec_num = cpu_to_le32(1);
1236 join_params_size += sizeof(join_params.params_le);
1237 }
1238
1239 /* set channel for starter */
1240 target_channel = cfg->channel;
1241 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1242 target_channel);
1243 if (err) {
1244 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1245 goto done;
1246 }
1247 } else
1248 cfg->channel = 0;
1249
1250 cfg->ibss_starter = false;
1251
1252
1253 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1254 &join_params, join_params_size);
1255 if (err) {
1256 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1257 goto done;
1258 }
1259
1260done:
1261 if (err)
1262 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1263 brcmf_dbg(TRACE, "Exit\n");
1264 return err;
1265}
1266
1267static s32
1268brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1269{
1270 struct brcmf_if *ifp = netdev_priv(ndev);
1271 s32 err = 0;
1272
1273 brcmf_dbg(TRACE, "Enter\n");
1274 if (!check_vif_up(ifp->vif))
1275 return -EIO;
1276
1277 brcmf_link_down(ifp->vif);
1278
1279 brcmf_dbg(TRACE, "Exit\n");
1280
1281 return err;
1282}
1283
1284static s32 brcmf_set_wpa_version(struct net_device *ndev,
1285 struct cfg80211_connect_params *sme)
1286{
1287 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1288 struct brcmf_cfg80211_security *sec;
1289 s32 val = 0;
1290 s32 err = 0;
1291
1292 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1293 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1294 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1295 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1296 else
1297 val = WPA_AUTH_DISABLED;
1298 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1299 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1300 if (err) {
1301 brcmf_err("set wpa_auth failed (%d)\n", err);
1302 return err;
1303 }
1304 sec = &profile->sec;
1305 sec->wpa_versions = sme->crypto.wpa_versions;
1306 return err;
1307}
1308
1309static s32 brcmf_set_auth_type(struct net_device *ndev,
1310 struct cfg80211_connect_params *sme)
1311{
1312 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1313 struct brcmf_cfg80211_security *sec;
1314 s32 val = 0;
1315 s32 err = 0;
1316
1317 switch (sme->auth_type) {
1318 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1319 val = 0;
1320 brcmf_dbg(CONN, "open system\n");
1321 break;
1322 case NL80211_AUTHTYPE_SHARED_KEY:
1323 val = 1;
1324 brcmf_dbg(CONN, "shared key\n");
1325 break;
1326 case NL80211_AUTHTYPE_AUTOMATIC:
1327 val = 2;
1328 brcmf_dbg(CONN, "automatic\n");
1329 break;
1330 case NL80211_AUTHTYPE_NETWORK_EAP:
1331 brcmf_dbg(CONN, "network eap\n");
1332 default:
1333 val = 2;
1334 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1335 break;
1336 }
1337
1338 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1339 if (err) {
1340 brcmf_err("set auth failed (%d)\n", err);
1341 return err;
1342 }
1343 sec = &profile->sec;
1344 sec->auth_type = sme->auth_type;
1345 return err;
1346}
1347
1348static s32
1349brcmf_set_set_cipher(struct net_device *ndev,
1350 struct cfg80211_connect_params *sme)
1351{
1352 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1353 struct brcmf_cfg80211_security *sec;
1354 s32 pval = 0;
1355 s32 gval = 0;
1356 s32 err = 0;
1357
1358 if (sme->crypto.n_ciphers_pairwise) {
1359 switch (sme->crypto.ciphers_pairwise[0]) {
1360 case WLAN_CIPHER_SUITE_WEP40:
1361 case WLAN_CIPHER_SUITE_WEP104:
1362 pval = WEP_ENABLED;
1363 break;
1364 case WLAN_CIPHER_SUITE_TKIP:
1365 pval = TKIP_ENABLED;
1366 break;
1367 case WLAN_CIPHER_SUITE_CCMP:
1368 pval = AES_ENABLED;
1369 break;
1370 case WLAN_CIPHER_SUITE_AES_CMAC:
1371 pval = AES_ENABLED;
1372 break;
1373 default:
1374 brcmf_err("invalid cipher pairwise (%d)\n",
1375 sme->crypto.ciphers_pairwise[0]);
1376 return -EINVAL;
1377 }
1378 }
1379 if (sme->crypto.cipher_group) {
1380 switch (sme->crypto.cipher_group) {
1381 case WLAN_CIPHER_SUITE_WEP40:
1382 case WLAN_CIPHER_SUITE_WEP104:
1383 gval = WEP_ENABLED;
1384 break;
1385 case WLAN_CIPHER_SUITE_TKIP:
1386 gval = TKIP_ENABLED;
1387 break;
1388 case WLAN_CIPHER_SUITE_CCMP:
1389 gval = AES_ENABLED;
1390 break;
1391 case WLAN_CIPHER_SUITE_AES_CMAC:
1392 gval = AES_ENABLED;
1393 break;
1394 default:
1395 brcmf_err("invalid cipher group (%d)\n",
1396 sme->crypto.cipher_group);
1397 return -EINVAL;
1398 }
1399 }
1400
1401 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1402 /* In case of privacy, but no security and WPS then simulate */
1403 /* setting AES. WPS-2.0 allows no security */
1404 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1405 sme->privacy)
1406 pval = AES_ENABLED;
1407 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", pval | gval);
1408 if (err) {
1409 brcmf_err("error (%d)\n", err);
1410 return err;
1411 }
1412
1413 sec = &profile->sec;
1414 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1415 sec->cipher_group = sme->crypto.cipher_group;
1416
1417 return err;
1418}
1419
1420static s32
1421brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1422{
1423 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1424 struct brcmf_cfg80211_security *sec;
1425 s32 val = 0;
1426 s32 err = 0;
1427
1428 if (sme->crypto.n_akm_suites) {
1429 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1430 "wpa_auth", &val);
1431 if (err) {
1432 brcmf_err("could not get wpa_auth (%d)\n", err);
1433 return err;
1434 }
1435 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1436 switch (sme->crypto.akm_suites[0]) {
1437 case WLAN_AKM_SUITE_8021X:
1438 val = WPA_AUTH_UNSPECIFIED;
1439 break;
1440 case WLAN_AKM_SUITE_PSK:
1441 val = WPA_AUTH_PSK;
1442 break;
1443 default:
1444 brcmf_err("invalid cipher group (%d)\n",
1445 sme->crypto.cipher_group);
1446 return -EINVAL;
1447 }
1448 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1449 switch (sme->crypto.akm_suites[0]) {
1450 case WLAN_AKM_SUITE_8021X:
1451 val = WPA2_AUTH_UNSPECIFIED;
1452 break;
1453 case WLAN_AKM_SUITE_PSK:
1454 val = WPA2_AUTH_PSK;
1455 break;
1456 default:
1457 brcmf_err("invalid cipher group (%d)\n",
1458 sme->crypto.cipher_group);
1459 return -EINVAL;
1460 }
1461 }
1462
1463 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1464 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1465 "wpa_auth", val);
1466 if (err) {
1467 brcmf_err("could not set wpa_auth (%d)\n", err);
1468 return err;
1469 }
1470 }
1471 sec = &profile->sec;
1472 sec->wpa_auth = sme->crypto.akm_suites[0];
1473
1474 return err;
1475}
1476
1477static s32
1478brcmf_set_sharedkey(struct net_device *ndev,
1479 struct cfg80211_connect_params *sme)
1480{
1481 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1482 struct brcmf_cfg80211_security *sec;
1483 struct brcmf_wsec_key key;
1484 s32 val;
1485 s32 err = 0;
1486
1487 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1488
1489 if (sme->key_len == 0)
1490 return 0;
1491
1492 sec = &profile->sec;
1493 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1494 sec->wpa_versions, sec->cipher_pairwise);
1495
1496 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1497 return 0;
1498
1499 if (!(sec->cipher_pairwise &
1500 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1501 return 0;
1502
1503 memset(&key, 0, sizeof(key));
1504 key.len = (u32) sme->key_len;
1505 key.index = (u32) sme->key_idx;
1506 if (key.len > sizeof(key.data)) {
1507 brcmf_err("Too long key length (%u)\n", key.len);
1508 return -EINVAL;
1509 }
1510 memcpy(key.data, sme->key, key.len);
1511 key.flags = BRCMF_PRIMARY_KEY;
1512 switch (sec->cipher_pairwise) {
1513 case WLAN_CIPHER_SUITE_WEP40:
1514 key.algo = CRYPTO_ALGO_WEP1;
1515 break;
1516 case WLAN_CIPHER_SUITE_WEP104:
1517 key.algo = CRYPTO_ALGO_WEP128;
1518 break;
1519 default:
1520 brcmf_err("Invalid algorithm (%d)\n",
1521 sme->crypto.ciphers_pairwise[0]);
1522 return -EINVAL;
1523 }
1524 /* Set the new key/index */
1525 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1526 key.len, key.index, key.algo);
1527 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1528 err = send_key_to_dongle(ndev, &key);
1529 if (err)
1530 return err;
1531
1532 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1533 brcmf_dbg(CONN, "set auth_type to shared key\n");
1534 val = WL_AUTH_SHARED_KEY; /* shared key */
1535 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1536 if (err)
1537 brcmf_err("set auth failed (%d)\n", err);
1538 }
1539 return err;
1540}
1541
1542static
1543enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1544 enum nl80211_auth_type type)
1545{
1546 u32 ci;
1547 if (type == NL80211_AUTHTYPE_AUTOMATIC) {
1548 /* shift to ignore chip revision */
1549 ci = brcmf_get_chip_info(ifp) >> 4;
1550 switch (ci) {
1551 case 43236:
1552 brcmf_dbg(CONN, "43236 WAR: use OPEN instead of AUTO\n");
1553 return NL80211_AUTHTYPE_OPEN_SYSTEM;
1554 default:
1555 break;
1556 }
1557 }
1558 return type;
1559}
1560
1561static s32
1562brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1563 struct cfg80211_connect_params *sme)
1564{
1565 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1566 struct brcmf_if *ifp = netdev_priv(ndev);
1567 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1568 struct ieee80211_channel *chan = sme->channel;
1569 struct brcmf_join_params join_params;
1570 size_t join_params_size;
1571 struct brcmf_tlv *rsn_ie;
1572 struct brcmf_vs_tlv *wpa_ie;
1573 void *ie;
1574 u32 ie_len;
1575 struct brcmf_ext_join_params_le *ext_join_params;
1576 u16 chanspec;
1577
1578 s32 err = 0;
1579
1580 brcmf_dbg(TRACE, "Enter\n");
1581 if (!check_vif_up(ifp->vif))
1582 return -EIO;
1583
1584 if (!sme->ssid) {
1585 brcmf_err("Invalid ssid\n");
1586 return -EOPNOTSUPP;
1587 }
1588
1589 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1590 /* A normal (non P2P) connection request setup. */
1591 ie = NULL;
1592 ie_len = 0;
1593 /* find the WPA_IE */
1594 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1595 if (wpa_ie) {
1596 ie = wpa_ie;
1597 ie_len = wpa_ie->len + TLV_HDR_LEN;
1598 } else {
1599 /* find the RSN_IE */
1600 rsn_ie = brcmf_parse_tlvs((u8 *)sme->ie, sme->ie_len,
1601 WLAN_EID_RSN);
1602 if (rsn_ie) {
1603 ie = rsn_ie;
1604 ie_len = rsn_ie->len + TLV_HDR_LEN;
1605 }
1606 }
1607 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1608 }
1609
1610 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1611 sme->ie, sme->ie_len);
1612 if (err)
1613 brcmf_err("Set Assoc REQ IE Failed\n");
1614 else
1615 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1616
1617 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1618
1619 if (chan) {
1620 cfg->channel =
1621 ieee80211_frequency_to_channel(chan->center_freq);
1622 chanspec = channel_to_chanspec(chan);
1623 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1624 cfg->channel, chan->center_freq, chanspec);
1625 } else {
1626 cfg->channel = 0;
1627 chanspec = 0;
1628 }
1629
1630 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1631
1632 err = brcmf_set_wpa_version(ndev, sme);
1633 if (err) {
1634 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1635 goto done;
1636 }
1637
1638 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1639 err = brcmf_set_auth_type(ndev, sme);
1640 if (err) {
1641 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1642 goto done;
1643 }
1644
1645 err = brcmf_set_set_cipher(ndev, sme);
1646 if (err) {
1647 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1648 goto done;
1649 }
1650
1651 err = brcmf_set_key_mgmt(ndev, sme);
1652 if (err) {
1653 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1654 goto done;
1655 }
1656
1657 err = brcmf_set_sharedkey(ndev, sme);
1658 if (err) {
1659 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1660 goto done;
1661 }
1662
1663 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1664 (u32)sme->ssid_len);
1665 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1666 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1667 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1668 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1669 profile->ssid.SSID_len);
1670 }
1671
1672 /* Join with specific BSSID and cached SSID
1673 * If SSID is zero join based on BSSID only
1674 */
1675 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1676 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1677 if (cfg->channel)
1678 join_params_size += sizeof(u16);
1679 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1680 if (ext_join_params == NULL) {
1681 err = -ENOMEM;
1682 goto done;
1683 }
1684 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1685 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1686 profile->ssid.SSID_len);
1687 /*increase dwell time to receive probe response or detect Beacon
1688 * from target AP at a noisy air only during connect command
1689 */
1690 ext_join_params->scan_le.active_time =
1691 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1692 ext_join_params->scan_le.passive_time =
1693 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1694 /* Set up join scan parameters */
1695 ext_join_params->scan_le.scan_type = -1;
1696 /* to sync with presence period of VSDB GO.
1697 * Send probe request more frequently. Probe request will be stopped
1698 * when it gets probe response from target AP/GO.
1699 */
1700 ext_join_params->scan_le.nprobes =
1701 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1702 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1703 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1704
1705 if (sme->bssid)
1706 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1707 else
1708 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1709
1710 if (cfg->channel) {
1711 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1712
1713 ext_join_params->assoc_le.chanspec_list[0] =
1714 cpu_to_le16(chanspec);
1715 }
1716
1717 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1718 join_params_size);
1719 kfree(ext_join_params);
1720 if (!err)
1721 /* This is it. join command worked, we are done */
1722 goto done;
1723
1724 /* join command failed, fallback to set ssid */
1725 memset(&join_params, 0, sizeof(join_params));
1726 join_params_size = sizeof(join_params.ssid_le);
1727
1728 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1729 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1730
1731 if (sme->bssid)
1732 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1733 else
1734 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1735
1736 if (cfg->channel) {
1737 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1738 join_params.params_le.chanspec_num = cpu_to_le32(1);
1739 join_params_size += sizeof(join_params.params_le);
1740 }
1741 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1742 &join_params, join_params_size);
1743 if (err)
1744 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1745
1746done:
1747 if (err)
1748 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1749 brcmf_dbg(TRACE, "Exit\n");
1750 return err;
1751}
1752
1753static s32
1754brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1755 u16 reason_code)
1756{
1757 struct brcmf_if *ifp = netdev_priv(ndev);
1758 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1759 struct brcmf_scb_val_le scbval;
1760 s32 err = 0;
1761
1762 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1763 if (!check_vif_up(ifp->vif))
1764 return -EIO;
1765
1766 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1767
1768 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1769 scbval.val = cpu_to_le32(reason_code);
1770 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1771 &scbval, sizeof(scbval));
1772 if (err)
1773 brcmf_err("error (%d)\n", err);
1774
1775 brcmf_dbg(TRACE, "Exit\n");
1776 return err;
1777}
1778
1779static s32
1780brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1781 enum nl80211_tx_power_setting type, s32 mbm)
1782{
1783
1784 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1785 struct net_device *ndev = cfg_to_ndev(cfg);
1786 struct brcmf_if *ifp = netdev_priv(ndev);
1787 u16 txpwrmw;
1788 s32 err = 0;
1789 s32 disable = 0;
1790 s32 dbm = MBM_TO_DBM(mbm);
1791
1792 brcmf_dbg(TRACE, "Enter\n");
1793 if (!check_vif_up(ifp->vif))
1794 return -EIO;
1795
1796 switch (type) {
1797 case NL80211_TX_POWER_AUTOMATIC:
1798 break;
1799 case NL80211_TX_POWER_LIMITED:
1800 case NL80211_TX_POWER_FIXED:
1801 if (dbm < 0) {
1802 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1803 err = -EINVAL;
1804 goto done;
1805 }
1806 break;
1807 }
1808 /* Make sure radio is off or on as far as software is concerned */
1809 disable = WL_RADIO_SW_DISABLE << 16;
1810 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1811 if (err)
1812 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1813
1814 if (dbm > 0xffff)
1815 txpwrmw = 0xffff;
1816 else
1817 txpwrmw = (u16) dbm;
1818 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1819 (s32)brcmf_mw_to_qdbm(txpwrmw));
1820 if (err)
1821 brcmf_err("qtxpower error (%d)\n", err);
1822 cfg->conf->tx_power = dbm;
1823
1824done:
1825 brcmf_dbg(TRACE, "Exit\n");
1826 return err;
1827}
1828
1829static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1830 struct wireless_dev *wdev,
1831 s32 *dbm)
1832{
1833 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1834 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1835 s32 txpwrdbm;
1836 u8 result;
1837 s32 err = 0;
1838
1839 brcmf_dbg(TRACE, "Enter\n");
1840 if (!check_vif_up(ifp->vif))
1841 return -EIO;
1842
1843 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1844 if (err) {
1845 brcmf_err("error (%d)\n", err);
1846 goto done;
1847 }
1848
1849 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1850 *dbm = (s32) brcmf_qdbm_to_mw(result);
1851
1852done:
1853 brcmf_dbg(TRACE, "Exit\n");
1854 return err;
1855}
1856
1857static s32
1858brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1859 u8 key_idx, bool unicast, bool multicast)
1860{
1861 struct brcmf_if *ifp = netdev_priv(ndev);
1862 u32 index;
1863 u32 wsec;
1864 s32 err = 0;
1865
1866 brcmf_dbg(TRACE, "Enter\n");
1867 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1868 if (!check_vif_up(ifp->vif))
1869 return -EIO;
1870
1871 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1872 if (err) {
1873 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1874 goto done;
1875 }
1876
1877 if (wsec & WEP_ENABLED) {
1878 /* Just select a new current key */
1879 index = key_idx;
1880 err = brcmf_fil_cmd_int_set(ifp,
1881 BRCMF_C_SET_KEY_PRIMARY, index);
1882 if (err)
1883 brcmf_err("error (%d)\n", err);
1884 }
1885done:
1886 brcmf_dbg(TRACE, "Exit\n");
1887 return err;
1888}
1889
1890static s32
1891brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1892 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1893{
1894 struct brcmf_wsec_key key;
1895 s32 err = 0;
1896
1897 memset(&key, 0, sizeof(key));
1898 key.index = (u32) key_idx;
1899 /* Instead of bcast for ea address for default wep keys,
1900 driver needs it to be Null */
1901 if (!is_multicast_ether_addr(mac_addr))
1902 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1903 key.len = (u32) params->key_len;
1904 /* check for key index change */
1905 if (key.len == 0) {
1906 /* key delete */
1907 err = send_key_to_dongle(ndev, &key);
1908 if (err)
1909 brcmf_err("key delete error (%d)\n", err);
1910 } else {
1911 if (key.len > sizeof(key.data)) {
1912 brcmf_err("Invalid key length (%d)\n", key.len);
1913 return -EINVAL;
1914 }
1915
1916 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1917 memcpy(key.data, params->key, key.len);
1918
1919 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) {
1920 u8 keybuf[8];
1921 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1922 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1923 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1924 }
1925
1926 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1927 if (params->seq && params->seq_len == 6) {
1928 /* rx iv */
1929 u8 *ivptr;
1930 ivptr = (u8 *) params->seq;
1931 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1932 (ivptr[3] << 8) | ivptr[2];
1933 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1934 key.iv_initialized = true;
1935 }
1936
1937 switch (params->cipher) {
1938 case WLAN_CIPHER_SUITE_WEP40:
1939 key.algo = CRYPTO_ALGO_WEP1;
1940 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1941 break;
1942 case WLAN_CIPHER_SUITE_WEP104:
1943 key.algo = CRYPTO_ALGO_WEP128;
1944 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1945 break;
1946 case WLAN_CIPHER_SUITE_TKIP:
1947 key.algo = CRYPTO_ALGO_TKIP;
1948 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1949 break;
1950 case WLAN_CIPHER_SUITE_AES_CMAC:
1951 key.algo = CRYPTO_ALGO_AES_CCM;
1952 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1953 break;
1954 case WLAN_CIPHER_SUITE_CCMP:
1955 key.algo = CRYPTO_ALGO_AES_CCM;
1956 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
1957 break;
1958 default:
1959 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
1960 return -EINVAL;
1961 }
1962 err = send_key_to_dongle(ndev, &key);
1963 if (err)
1964 brcmf_err("wsec_key error (%d)\n", err);
1965 }
1966 return err;
1967}
1968
1969static s32
1970brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1971 u8 key_idx, bool pairwise, const u8 *mac_addr,
1972 struct key_params *params)
1973{
1974 struct brcmf_if *ifp = netdev_priv(ndev);
1975 struct brcmf_wsec_key key;
1976 s32 val;
1977 s32 wsec;
1978 s32 err = 0;
1979 u8 keybuf[8];
1980
1981 brcmf_dbg(TRACE, "Enter\n");
1982 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1983 if (!check_vif_up(ifp->vif))
1984 return -EIO;
1985
1986 if (mac_addr) {
1987 brcmf_dbg(TRACE, "Exit");
1988 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
1989 }
1990 memset(&key, 0, sizeof(key));
1991
1992 key.len = (u32) params->key_len;
1993 key.index = (u32) key_idx;
1994
1995 if (key.len > sizeof(key.data)) {
1996 brcmf_err("Too long key length (%u)\n", key.len);
1997 err = -EINVAL;
1998 goto done;
1999 }
2000 memcpy(key.data, params->key, key.len);
2001
2002 key.flags = BRCMF_PRIMARY_KEY;
2003 switch (params->cipher) {
2004 case WLAN_CIPHER_SUITE_WEP40:
2005 key.algo = CRYPTO_ALGO_WEP1;
2006 val = WEP_ENABLED;
2007 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2008 break;
2009 case WLAN_CIPHER_SUITE_WEP104:
2010 key.algo = CRYPTO_ALGO_WEP128;
2011 val = WEP_ENABLED;
2012 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2013 break;
2014 case WLAN_CIPHER_SUITE_TKIP:
2015 if (ifp->vif->mode != WL_MODE_AP) {
2016 brcmf_dbg(CONN, "Swapping key\n");
2017 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2018 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2019 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2020 }
2021 key.algo = CRYPTO_ALGO_TKIP;
2022 val = TKIP_ENABLED;
2023 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2024 break;
2025 case WLAN_CIPHER_SUITE_AES_CMAC:
2026 key.algo = CRYPTO_ALGO_AES_CCM;
2027 val = AES_ENABLED;
2028 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2029 break;
2030 case WLAN_CIPHER_SUITE_CCMP:
2031 key.algo = CRYPTO_ALGO_AES_CCM;
2032 val = AES_ENABLED;
2033 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2034 break;
2035 default:
2036 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2037 err = -EINVAL;
2038 goto done;
2039 }
2040
2041 err = send_key_to_dongle(ndev, &key);
2042 if (err)
2043 goto done;
2044
2045 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2046 if (err) {
2047 brcmf_err("get wsec error (%d)\n", err);
2048 goto done;
2049 }
2050 wsec |= val;
2051 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2052 if (err) {
2053 brcmf_err("set wsec error (%d)\n", err);
2054 goto done;
2055 }
2056
2057done:
2058 brcmf_dbg(TRACE, "Exit\n");
2059 return err;
2060}
2061
2062static s32
2063brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2064 u8 key_idx, bool pairwise, const u8 *mac_addr)
2065{
2066 struct brcmf_if *ifp = netdev_priv(ndev);
2067 struct brcmf_wsec_key key;
2068 s32 err = 0;
2069
2070 brcmf_dbg(TRACE, "Enter\n");
2071 if (!check_vif_up(ifp->vif))
2072 return -EIO;
2073
2074 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2075 /* we ignore this key index in this case */
2076 brcmf_err("invalid key index (%d)\n", key_idx);
2077 return -EINVAL;
2078 }
2079
2080 memset(&key, 0, sizeof(key));
2081
2082 key.index = (u32) key_idx;
2083 key.flags = BRCMF_PRIMARY_KEY;
2084 key.algo = CRYPTO_ALGO_OFF;
2085
2086 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2087
2088 /* Set the new key/index */
2089 err = send_key_to_dongle(ndev, &key);
2090
2091 brcmf_dbg(TRACE, "Exit\n");
2092 return err;
2093}
2094
2095static s32
2096brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2097 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2098 void (*callback) (void *cookie, struct key_params * params))
2099{
2100 struct key_params params;
2101 struct brcmf_if *ifp = netdev_priv(ndev);
2102 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2103 struct brcmf_cfg80211_security *sec;
2104 s32 wsec;
2105 s32 err = 0;
2106
2107 brcmf_dbg(TRACE, "Enter\n");
2108 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2109 if (!check_vif_up(ifp->vif))
2110 return -EIO;
2111
2112 memset(&params, 0, sizeof(params));
2113
2114 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2115 if (err) {
2116 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2117 /* Ignore this error, may happen during DISASSOC */
2118 err = -EAGAIN;
2119 goto done;
2120 }
2121 switch (wsec & ~SES_OW_ENABLED) {
2122 case WEP_ENABLED:
2123 sec = &profile->sec;
2124 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2125 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2126 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2127 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2128 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2129 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2130 }
2131 break;
2132 case TKIP_ENABLED:
2133 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2134 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2135 break;
2136 case AES_ENABLED:
2137 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2138 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2139 break;
2140 default:
2141 brcmf_err("Invalid algo (0x%x)\n", wsec);
2142 err = -EINVAL;
2143 goto done;
2144 }
2145 callback(cookie, &params);
2146
2147done:
2148 brcmf_dbg(TRACE, "Exit\n");
2149 return err;
2150}
2151
2152static s32
2153brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2154 struct net_device *ndev, u8 key_idx)
2155{
2156 brcmf_dbg(INFO, "Not supported\n");
2157
2158 return -EOPNOTSUPP;
2159}
2160
2161static s32
2162brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2163 u8 *mac, struct station_info *sinfo)
2164{
2165 struct brcmf_if *ifp = netdev_priv(ndev);
2166 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2167 struct brcmf_scb_val_le scb_val;
2168 int rssi;
2169 s32 rate;
2170 s32 err = 0;
2171 u8 *bssid = profile->bssid;
2172 struct brcmf_sta_info_le sta_info_le;
2173
2174 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2175 if (!check_vif_up(ifp->vif))
2176 return -EIO;
2177
2178 if (ifp->vif->mode == WL_MODE_AP) {
2179 memcpy(&sta_info_le, mac, ETH_ALEN);
2180 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2181 &sta_info_le,
2182 sizeof(sta_info_le));
2183 if (err < 0) {
2184 brcmf_err("GET STA INFO failed, %d\n", err);
2185 goto done;
2186 }
2187 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2188 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2189 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2190 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2191 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2192 }
2193 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2194 sinfo->inactive_time, sinfo->connected_time);
2195 } else if (ifp->vif->mode == WL_MODE_BSS) {
2196 if (memcmp(mac, bssid, ETH_ALEN)) {
2197 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2198 mac, bssid);
2199 err = -ENOENT;
2200 goto done;
2201 }
2202 /* Report the current tx rate */
2203 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2204 if (err) {
2205 brcmf_err("Could not get rate (%d)\n", err);
2206 goto done;
2207 } else {
2208 sinfo->filled |= STATION_INFO_TX_BITRATE;
2209 sinfo->txrate.legacy = rate * 5;
2210 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2211 }
2212
2213 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2214 &ifp->vif->sme_state)) {
2215 memset(&scb_val, 0, sizeof(scb_val));
2216 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2217 &scb_val, sizeof(scb_val));
2218 if (err) {
2219 brcmf_err("Could not get rssi (%d)\n", err);
2220 goto done;
2221 } else {
2222 rssi = le32_to_cpu(scb_val.val);
2223 sinfo->filled |= STATION_INFO_SIGNAL;
2224 sinfo->signal = rssi;
2225 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2226 }
2227 }
2228 } else
2229 err = -EPERM;
2230done:
2231 brcmf_dbg(TRACE, "Exit\n");
2232 return err;
2233}
2234
2235static s32
2236brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2237 bool enabled, s32 timeout)
2238{
2239 s32 pm;
2240 s32 err = 0;
2241 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2242 struct brcmf_if *ifp = netdev_priv(ndev);
2243
2244 brcmf_dbg(TRACE, "Enter\n");
2245
2246 /*
2247 * Powersave enable/disable request is coming from the
2248 * cfg80211 even before the interface is up. In that
2249 * scenario, driver will be storing the power save
2250 * preference in cfg struct to apply this to
2251 * FW later while initializing the dongle
2252 */
2253 cfg->pwr_save = enabled;
2254 if (!check_vif_up(ifp->vif)) {
2255
2256 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2257 goto done;
2258 }
2259
2260 pm = enabled ? PM_FAST : PM_OFF;
2261 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2262
2263 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2264 if (err) {
2265 if (err == -ENODEV)
2266 brcmf_err("net_device is not ready yet\n");
2267 else
2268 brcmf_err("error (%d)\n", err);
2269 }
2270done:
2271 brcmf_dbg(TRACE, "Exit\n");
2272 return err;
2273}
2274
2275static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2276 struct brcmf_bss_info_le *bi)
2277{
2278 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2279 struct ieee80211_channel *notify_channel;
2280 struct cfg80211_bss *bss;
2281 struct ieee80211_supported_band *band;
2282 s32 err = 0;
2283 u16 channel;
2284 u32 freq;
2285 u16 notify_capability;
2286 u16 notify_interval;
2287 u8 *notify_ie;
2288 size_t notify_ielen;
2289 s32 notify_signal;
2290
2291 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2292 brcmf_err("Bss info is larger than buffer. Discarding\n");
2293 return 0;
2294 }
2295
2296 channel = bi->ctl_ch ? bi->ctl_ch :
2297 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2298
2299 if (channel <= CH_MAX_2G_CHANNEL)
2300 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2301 else
2302 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2303
2304 freq = ieee80211_channel_to_frequency(channel, band->band);
2305 notify_channel = ieee80211_get_channel(wiphy, freq);
2306
2307 notify_capability = le16_to_cpu(bi->capability);
2308 notify_interval = le16_to_cpu(bi->beacon_period);
2309 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2310 notify_ielen = le32_to_cpu(bi->ie_length);
2311 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2312
2313 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2314 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2315 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2316 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2317 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2318
2319 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2320 0, notify_capability, notify_interval, notify_ie,
2321 notify_ielen, notify_signal, GFP_KERNEL);
2322
2323 if (!bss)
2324 return -ENOMEM;
2325
2326 cfg80211_put_bss(wiphy, bss);
2327
2328 return err;
2329}
2330
2331static struct brcmf_bss_info_le *
2332next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2333{
2334 if (bss == NULL)
2335 return list->bss_info_le;
2336 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2337 le32_to_cpu(bss->length));
2338}
2339
2340static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2341{
2342 struct brcmf_scan_results *bss_list;
2343 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2344 s32 err = 0;
2345 int i;
2346
2347 bss_list = cfg->bss_list;
2348 if (bss_list->count != 0 &&
2349 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2350 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2351 bss_list->version);
2352 return -EOPNOTSUPP;
2353 }
2354 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2355 for (i = 0; i < bss_list->count; i++) {
2356 bi = next_bss_le(bss_list, bi);
2357 err = brcmf_inform_single_bss(cfg, bi);
2358 if (err)
2359 break;
2360 }
2361 return err;
2362}
2363
2364static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2365 struct net_device *ndev, const u8 *bssid)
2366{
2367 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2368 struct ieee80211_channel *notify_channel;
2369 struct brcmf_bss_info_le *bi = NULL;
2370 struct ieee80211_supported_band *band;
2371 struct cfg80211_bss *bss;
2372 u8 *buf = NULL;
2373 s32 err = 0;
2374 u16 channel;
2375 u32 freq;
2376 u16 notify_capability;
2377 u16 notify_interval;
2378 u8 *notify_ie;
2379 size_t notify_ielen;
2380 s32 notify_signal;
2381
2382 brcmf_dbg(TRACE, "Enter\n");
2383
2384 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2385 if (buf == NULL) {
2386 err = -ENOMEM;
2387 goto CleanUp;
2388 }
2389
2390 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2391
2392 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2393 buf, WL_BSS_INFO_MAX);
2394 if (err) {
2395 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2396 goto CleanUp;
2397 }
2398
2399 bi = (struct brcmf_bss_info_le *)(buf + 4);
2400
2401 channel = bi->ctl_ch ? bi->ctl_ch :
2402 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2403
2404 if (channel <= CH_MAX_2G_CHANNEL)
2405 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2406 else
2407 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2408
2409 freq = ieee80211_channel_to_frequency(channel, band->band);
2410 notify_channel = ieee80211_get_channel(wiphy, freq);
2411
2412 notify_capability = le16_to_cpu(bi->capability);
2413 notify_interval = le16_to_cpu(bi->beacon_period);
2414 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2415 notify_ielen = le32_to_cpu(bi->ie_length);
2416 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2417
2418 brcmf_dbg(CONN, "channel: %d(%d)\n", channel, freq);
2419 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2420 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2421 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2422
2423 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2424 0, notify_capability, notify_interval,
2425 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2426
2427 if (!bss) {
2428 err = -ENOMEM;
2429 goto CleanUp;
2430 }
2431
2432 cfg80211_put_bss(wiphy, bss);
2433
2434CleanUp:
2435
2436 kfree(buf);
2437
2438 brcmf_dbg(TRACE, "Exit\n");
2439
2440 return err;
2441}
2442
2443static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
2444{
2445 return vif->mode == WL_MODE_IBSS;
2446}
2447
2448static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2449 struct brcmf_if *ifp)
2450{
2451 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2452 struct brcmf_bss_info_le *bi;
2453 struct brcmf_ssid *ssid;
2454 struct brcmf_tlv *tim;
2455 u16 beacon_interval;
2456 u8 dtim_period;
2457 size_t ie_len;
2458 u8 *ie;
2459 s32 err = 0;
2460
2461 brcmf_dbg(TRACE, "Enter\n");
2462 if (brcmf_is_ibssmode(ifp->vif))
2463 return err;
2464
2465 ssid = &profile->ssid;
2466
2467 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2468 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2469 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2470 if (err) {
2471 brcmf_err("Could not get bss info %d\n", err);
2472 goto update_bss_info_out;
2473 }
2474
2475 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2476 err = brcmf_inform_single_bss(cfg, bi);
2477 if (err)
2478 goto update_bss_info_out;
2479
2480 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2481 ie_len = le32_to_cpu(bi->ie_length);
2482 beacon_interval = le16_to_cpu(bi->beacon_period);
2483
2484 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2485 if (tim)
2486 dtim_period = tim->data[1];
2487 else {
2488 /*
2489 * active scan was done so we could not get dtim
2490 * information out of probe response.
2491 * so we speficially query dtim information to dongle.
2492 */
2493 u32 var;
2494 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2495 if (err) {
2496 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2497 goto update_bss_info_out;
2498 }
2499 dtim_period = (u8)var;
2500 }
2501
2502update_bss_info_out:
2503 brcmf_dbg(TRACE, "Exit");
2504 return err;
2505}
2506
2507void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2508{
2509 struct escan_info *escan = &cfg->escan_info;
2510
2511 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2512 if (cfg->scan_request) {
2513 escan->escan_state = WL_ESCAN_STATE_IDLE;
2514 brcmf_notify_escan_complete(cfg, escan->ndev, true, true);
2515 }
2516 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2517 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2518}
2519
2520static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2521{
2522 struct brcmf_cfg80211_info *cfg =
2523 container_of(work, struct brcmf_cfg80211_info,
2524 escan_timeout_work);
2525
2526 brcmf_notify_escan_complete(cfg, cfg->escan_info.ndev, true, true);
2527}
2528
2529static void brcmf_escan_timeout(unsigned long data)
2530{
2531 struct brcmf_cfg80211_info *cfg =
2532 (struct brcmf_cfg80211_info *)data;
2533
2534 if (cfg->scan_request) {
2535 brcmf_err("timer expired\n");
2536 schedule_work(&cfg->escan_timeout_work);
2537 }
2538}
2539
2540static s32
2541brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
2542 struct brcmf_bss_info_le *bss_info_le)
2543{
2544 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2545 (CHSPEC_BAND(le16_to_cpu(bss_info_le->chanspec)) ==
2546 CHSPEC_BAND(le16_to_cpu(bss->chanspec))) &&
2547 bss_info_le->SSID_len == bss->SSID_len &&
2548 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2549 if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
2550 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
2551 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2552 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2553
2554 /* preserve max RSSI if the measurements are
2555 * both on-channel or both off-channel
2556 */
2557 if (bss_info_rssi > bss_rssi)
2558 bss->RSSI = bss_info_le->RSSI;
2559 } else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
2560 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {
2561 /* preserve the on-channel rssi measurement
2562 * if the new measurement is off channel
2563 */
2564 bss->RSSI = bss_info_le->RSSI;
2565 bss->flags |= WLC_BSS_RSSI_ON_CHANNEL;
2566 }
2567 return 1;
2568 }
2569 return 0;
2570}
2571
2572static s32
2573brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2574 const struct brcmf_event_msg *e, void *data)
2575{
2576 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2577 struct net_device *ndev = ifp->ndev;
2578 s32 status;
2579 s32 err = 0;
2580 struct brcmf_escan_result_le *escan_result_le;
2581 struct brcmf_bss_info_le *bss_info_le;
2582 struct brcmf_bss_info_le *bss = NULL;
2583 u32 bi_length;
2584 struct brcmf_scan_results *list;
2585 u32 i;
2586 bool aborted;
2587
2588 status = e->status;
2589
2590 if (!ndev || !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2591 brcmf_err("scan not ready ndev %p drv_status %x\n", ndev,
2592 !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status));
2593 return -EPERM;
2594 }
2595
2596 if (status == BRCMF_E_STATUS_PARTIAL) {
2597 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2598 escan_result_le = (struct brcmf_escan_result_le *) data;
2599 if (!escan_result_le) {
2600 brcmf_err("Invalid escan result (NULL pointer)\n");
2601 goto exit;
2602 }
2603 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2604 brcmf_err("Invalid bss_count %d: ignoring\n",
2605 escan_result_le->bss_count);
2606 goto exit;
2607 }
2608 bss_info_le = &escan_result_le->bss_info_le;
2609
2610 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2611 goto exit;
2612
2613 if (!cfg->scan_request) {
2614 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2615 goto exit;
2616 }
2617
2618 bi_length = le32_to_cpu(bss_info_le->length);
2619 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2620 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2621 brcmf_err("Invalid bss_info length %d: ignoring\n",
2622 bi_length);
2623 goto exit;
2624 }
2625
2626 if (!(cfg_to_wiphy(cfg)->interface_modes &
2627 BIT(NL80211_IFTYPE_ADHOC))) {
2628 if (le16_to_cpu(bss_info_le->capability) &
2629 WLAN_CAPABILITY_IBSS) {
2630 brcmf_err("Ignoring IBSS result\n");
2631 goto exit;
2632 }
2633 }
2634
2635 list = (struct brcmf_scan_results *)
2636 cfg->escan_info.escan_buf;
2637 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2638 brcmf_err("Buffer is too small: ignoring\n");
2639 goto exit;
2640 }
2641
2642 for (i = 0; i < list->count; i++) {
2643 bss = bss ? (struct brcmf_bss_info_le *)
2644 ((unsigned char *)bss +
2645 le32_to_cpu(bss->length)) : list->bss_info_le;
2646 if (brcmf_compare_update_same_bss(bss, bss_info_le))
2647 goto exit;
2648 }
2649 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2650 bss_info_le, bi_length);
2651 list->version = le32_to_cpu(bss_info_le->version);
2652 list->buflen += bi_length;
2653 list->count++;
2654 } else {
2655 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2656 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2657 goto exit;
2658 if (cfg->scan_request) {
2659 cfg->bss_list = (struct brcmf_scan_results *)
2660 cfg->escan_info.escan_buf;
2661 brcmf_inform_bss(cfg);
2662 aborted = status != BRCMF_E_STATUS_SUCCESS;
2663 brcmf_notify_escan_complete(cfg, ndev, aborted,
2664 false);
2665 } else
2666 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2667 status);
2668 }
2669exit:
2670 return err;
2671}
2672
2673static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2674{
2675 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2676 brcmf_cfg80211_escan_handler);
2677 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2678 /* Init scan_timeout timer */
2679 init_timer(&cfg->escan_timeout);
2680 cfg->escan_timeout.data = (unsigned long) cfg;
2681 cfg->escan_timeout.function = brcmf_escan_timeout;
2682 INIT_WORK(&cfg->escan_timeout_work,
2683 brcmf_cfg80211_escan_timeout_worker);
2684}
2685
2686static __always_inline void brcmf_delay(u32 ms)
2687{
2688 if (ms < 1000 / HZ) {
2689 cond_resched();
2690 mdelay(ms);
2691 } else {
2692 msleep(ms);
2693 }
2694}
2695
2696static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2697{
2698 brcmf_dbg(TRACE, "Enter\n");
2699
2700 return 0;
2701}
2702
2703static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2704 struct cfg80211_wowlan *wow)
2705{
2706 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2707 struct net_device *ndev = cfg_to_ndev(cfg);
2708 struct brcmf_cfg80211_vif *vif;
2709
2710 brcmf_dbg(TRACE, "Enter\n");
2711
2712 /*
2713 * if the primary net_device is not READY there is nothing
2714 * we can do but pray resume goes smoothly.
2715 */
2716 vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
2717 if (!check_vif_up(vif))
2718 goto exit;
2719
2720 list_for_each_entry(vif, &cfg->vif_list, list) {
2721 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2722 continue;
2723 /*
2724 * While going to suspend if associated with AP disassociate
2725 * from AP to save power while system is in suspended state
2726 */
2727 brcmf_link_down(vif);
2728
2729 /* Make sure WPA_Supplicant receives all the event
2730 * generated due to DISASSOC call to the fw to keep
2731 * the state fw and WPA_Supplicant state consistent
2732 */
2733 brcmf_delay(500);
2734 }
2735
2736 /* end any scanning */
2737 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2738 brcmf_abort_scanning(cfg);
2739
2740 /* Turn off watchdog timer */
2741 brcmf_set_mpc(ndev, 1);
2742
2743exit:
2744 brcmf_dbg(TRACE, "Exit\n");
2745 /* clear any scanning activity */
2746 cfg->scan_status = 0;
2747 return 0;
2748}
2749
2750static __used s32
2751brcmf_update_pmklist(struct net_device *ndev,
2752 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2753{
2754 int i, j;
2755 int pmkid_len;
2756
2757 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2758
2759 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2760 for (i = 0; i < pmkid_len; i++) {
2761 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2762 &pmk_list->pmkids.pmkid[i].BSSID);
2763 for (j = 0; j < WLAN_PMKID_LEN; j++)
2764 brcmf_dbg(CONN, "%02x\n",
2765 pmk_list->pmkids.pmkid[i].PMKID[j]);
2766 }
2767
2768 if (!err)
2769 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2770 (char *)pmk_list, sizeof(*pmk_list));
2771
2772 return err;
2773}
2774
2775static s32
2776brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2777 struct cfg80211_pmksa *pmksa)
2778{
2779 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2780 struct brcmf_if *ifp = netdev_priv(ndev);
2781 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2782 s32 err = 0;
2783 int i;
2784 int pmkid_len;
2785
2786 brcmf_dbg(TRACE, "Enter\n");
2787 if (!check_vif_up(ifp->vif))
2788 return -EIO;
2789
2790 pmkid_len = le32_to_cpu(pmkids->npmkid);
2791 for (i = 0; i < pmkid_len; i++)
2792 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2793 break;
2794 if (i < WL_NUM_PMKIDS_MAX) {
2795 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2796 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2797 if (i == pmkid_len) {
2798 pmkid_len++;
2799 pmkids->npmkid = cpu_to_le32(pmkid_len);
2800 }
2801 } else
2802 err = -EINVAL;
2803
2804 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2805 pmkids->pmkid[pmkid_len].BSSID);
2806 for (i = 0; i < WLAN_PMKID_LEN; i++)
2807 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2808
2809 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2810
2811 brcmf_dbg(TRACE, "Exit\n");
2812 return err;
2813}
2814
2815static s32
2816brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2817 struct cfg80211_pmksa *pmksa)
2818{
2819 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2820 struct brcmf_if *ifp = netdev_priv(ndev);
2821 struct pmkid_list pmkid;
2822 s32 err = 0;
2823 int i, pmkid_len;
2824
2825 brcmf_dbg(TRACE, "Enter\n");
2826 if (!check_vif_up(ifp->vif))
2827 return -EIO;
2828
2829 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2830 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2831
2832 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2833 &pmkid.pmkid[0].BSSID);
2834 for (i = 0; i < WLAN_PMKID_LEN; i++)
2835 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
2836
2837 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
2838 for (i = 0; i < pmkid_len; i++)
2839 if (!memcmp
2840 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
2841 ETH_ALEN))
2842 break;
2843
2844 if ((pmkid_len > 0)
2845 && (i < pmkid_len)) {
2846 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
2847 sizeof(struct pmkid));
2848 for (; i < (pmkid_len - 1); i++) {
2849 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
2850 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
2851 ETH_ALEN);
2852 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
2853 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
2854 WLAN_PMKID_LEN);
2855 }
2856 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2857 } else
2858 err = -EINVAL;
2859
2860 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2861
2862 brcmf_dbg(TRACE, "Exit\n");
2863 return err;
2864
2865}
2866
2867static s32
2868brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2869{
2870 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2871 struct brcmf_if *ifp = netdev_priv(ndev);
2872 s32 err = 0;
2873
2874 brcmf_dbg(TRACE, "Enter\n");
2875 if (!check_vif_up(ifp->vif))
2876 return -EIO;
2877
2878 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
2879 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2880
2881 brcmf_dbg(TRACE, "Exit\n");
2882 return err;
2883
2884}
2885
2886/*
2887 * PFN result doesn't have all the info which are
2888 * required by the supplicant
2889 * (For e.g IEs) Do a target Escan so that sched scan results are reported
2890 * via wl_inform_single_bss in the required format. Escan does require the
2891 * scan request in the form of cfg80211_scan_request. For timebeing, create
2892 * cfg80211_scan_request one out of the received PNO event.
2893 */
2894static s32
2895brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
2896 const struct brcmf_event_msg *e, void *data)
2897{
2898 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2899 struct net_device *ndev = ifp->ndev;
2900 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
2901 struct cfg80211_scan_request *request = NULL;
2902 struct cfg80211_ssid *ssid = NULL;
2903 struct ieee80211_channel *channel = NULL;
2904 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2905 int err = 0;
2906 int channel_req = 0;
2907 int band = 0;
2908 struct brcmf_pno_scanresults_le *pfn_result;
2909 u32 result_count;
2910 u32 status;
2911
2912 brcmf_dbg(SCAN, "Enter\n");
2913
2914 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
2915 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
2916 return 0;
2917 }
2918
2919 pfn_result = (struct brcmf_pno_scanresults_le *)data;
2920 result_count = le32_to_cpu(pfn_result->count);
2921 status = le32_to_cpu(pfn_result->status);
2922
2923 /*
2924 * PFN event is limited to fit 512 bytes so we may get
2925 * multiple NET_FOUND events. For now place a warning here.
2926 */
2927 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
2928 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
2929 if (result_count > 0) {
2930 int i;
2931
2932 request = kzalloc(sizeof(*request), GFP_KERNEL);
2933 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
2934 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
2935 if (!request || !ssid || !channel) {
2936 err = -ENOMEM;
2937 goto out_err;
2938 }
2939
2940 request->wiphy = wiphy;
2941 data += sizeof(struct brcmf_pno_scanresults_le);
2942 netinfo_start = (struct brcmf_pno_net_info_le *)data;
2943
2944 for (i = 0; i < result_count; i++) {
2945 netinfo = &netinfo_start[i];
2946 if (!netinfo) {
2947 brcmf_err("Invalid netinfo ptr. index: %d\n",
2948 i);
2949 err = -EINVAL;
2950 goto out_err;
2951 }
2952
2953 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
2954 netinfo->SSID, netinfo->channel);
2955 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
2956 ssid[i].ssid_len = netinfo->SSID_len;
2957 request->n_ssids++;
2958
2959 channel_req = netinfo->channel;
2960 if (channel_req <= CH_MAX_2G_CHANNEL)
2961 band = NL80211_BAND_2GHZ;
2962 else
2963 band = NL80211_BAND_5GHZ;
2964 channel[i].center_freq =
2965 ieee80211_channel_to_frequency(channel_req,
2966 band);
2967 channel[i].band = band;
2968 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
2969 request->channels[i] = &channel[i];
2970 request->n_channels++;
2971 }
2972
2973 /* assign parsed ssid array */
2974 if (request->n_ssids)
2975 request->ssids = &ssid[0];
2976
2977 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2978 /* Abort any on-going scan */
2979 brcmf_abort_scanning(cfg);
2980 }
2981
2982 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2983 err = brcmf_do_escan(cfg, wiphy, ndev, request);
2984 if (err) {
2985 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2986 goto out_err;
2987 }
2988 cfg->sched_escan = true;
2989 cfg->scan_request = request;
2990 } else {
2991 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
2992 goto out_err;
2993 }
2994
2995 kfree(ssid);
2996 kfree(channel);
2997 kfree(request);
2998 return 0;
2999
3000out_err:
3001 kfree(ssid);
3002 kfree(channel);
3003 kfree(request);
3004 cfg80211_sched_scan_stopped(wiphy);
3005 return err;
3006}
3007
3008static int brcmf_dev_pno_clean(struct net_device *ndev)
3009{
3010 int ret;
3011
3012 /* Disable pfn */
3013 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3014 if (ret == 0) {
3015 /* clear pfn */
3016 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3017 NULL, 0);
3018 }
3019 if (ret < 0)
3020 brcmf_err("failed code %d\n", ret);
3021
3022 return ret;
3023}
3024
3025static int brcmf_dev_pno_config(struct net_device *ndev)
3026{
3027 struct brcmf_pno_param_le pfn_param;
3028
3029 memset(&pfn_param, 0, sizeof(pfn_param));
3030 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3031
3032 /* set extra pno params */
3033 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3034 pfn_param.repeat = BRCMF_PNO_REPEAT;
3035 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3036
3037 /* set up pno scan fr */
3038 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3039
3040 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3041 &pfn_param, sizeof(pfn_param));
3042}
3043
3044static int
3045brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3046 struct net_device *ndev,
3047 struct cfg80211_sched_scan_request *request)
3048{
3049 struct brcmf_if *ifp = netdev_priv(ndev);
3050 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3051 struct brcmf_pno_net_param_le pfn;
3052 int i;
3053 int ret = 0;
3054
3055 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3056 request->n_match_sets, request->n_ssids);
3057 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3058 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3059 return -EAGAIN;
3060 }
3061
3062 if (!request || !request->n_ssids || !request->n_match_sets) {
3063 brcmf_err("Invalid sched scan req!! n_ssids:%d\n",
3064 request ? request->n_ssids : 0);
3065 return -EINVAL;
3066 }
3067
3068 if (request->n_ssids > 0) {
3069 for (i = 0; i < request->n_ssids; i++) {
3070 /* Active scan req for ssids */
3071 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3072 request->ssids[i].ssid);
3073
3074 /*
3075 * match_set ssids is a supert set of n_ssid list,
3076 * so we need not add these set seperately.
3077 */
3078 }
3079 }
3080
3081 if (request->n_match_sets > 0) {
3082 /* clean up everything */
3083 ret = brcmf_dev_pno_clean(ndev);
3084 if (ret < 0) {
3085 brcmf_err("failed error=%d\n", ret);
3086 return ret;
3087 }
3088
3089 /* configure pno */
3090 ret = brcmf_dev_pno_config(ndev);
3091 if (ret < 0) {
3092 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3093 return -EINVAL;
3094 }
3095
3096 /* configure each match set */
3097 for (i = 0; i < request->n_match_sets; i++) {
3098 struct cfg80211_ssid *ssid;
3099 u32 ssid_len;
3100
3101 ssid = &request->match_sets[i].ssid;
3102 ssid_len = ssid->ssid_len;
3103
3104 if (!ssid_len) {
3105 brcmf_err("skip broadcast ssid\n");
3106 continue;
3107 }
3108 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3109 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3110 pfn.wsec = cpu_to_le32(0);
3111 pfn.infra = cpu_to_le32(1);
3112 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3113 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3114 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3115 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3116 sizeof(pfn));
3117 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3118 ret == 0 ? "set" : "failed", ssid->ssid);
3119 }
3120 /* Enable the PNO */
3121 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3122 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3123 return -EINVAL;
3124 }
3125 } else {
3126 return -EINVAL;
3127 }
3128
3129 return 0;
3130}
3131
3132static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3133 struct net_device *ndev)
3134{
3135 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3136
3137 brcmf_dbg(SCAN, "enter\n");
3138 brcmf_dev_pno_clean(ndev);
3139 if (cfg->sched_escan)
3140 brcmf_notify_escan_complete(cfg, ndev, true, true);
3141 return 0;
3142}
3143
3144#ifdef CONFIG_NL80211_TESTMODE
3145static int brcmf_cfg80211_testmode(struct wiphy *wiphy, void *data, int len)
3146{
3147 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3148 struct net_device *ndev = cfg_to_ndev(cfg);
3149 struct brcmf_dcmd *dcmd = data;
3150 struct sk_buff *reply;
3151 int ret;
3152
3153 brcmf_dbg(TRACE, "cmd %x set %d buf %p len %d\n", dcmd->cmd, dcmd->set,
3154 dcmd->buf, dcmd->len);
3155
3156 if (dcmd->set)
3157 ret = brcmf_fil_cmd_data_set(netdev_priv(ndev), dcmd->cmd,
3158 dcmd->buf, dcmd->len);
3159 else
3160 ret = brcmf_fil_cmd_data_get(netdev_priv(ndev), dcmd->cmd,
3161 dcmd->buf, dcmd->len);
3162 if (ret == 0) {
3163 reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
3164 nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
3165 ret = cfg80211_testmode_reply(reply);
3166 }
3167 return ret;
3168}
3169#endif
3170
3171static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3172{
3173 s32 err;
3174
3175 /* set auth */
3176 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3177 if (err < 0) {
3178 brcmf_err("auth error %d\n", err);
3179 return err;
3180 }
3181 /* set wsec */
3182 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3183 if (err < 0) {
3184 brcmf_err("wsec error %d\n", err);
3185 return err;
3186 }
3187 /* set upper-layer auth */
3188 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3189 if (err < 0) {
3190 brcmf_err("wpa_auth error %d\n", err);
3191 return err;
3192 }
3193
3194 return 0;
3195}
3196
3197static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3198{
3199 if (is_rsn_ie)
3200 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3201
3202 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3203}
3204
3205static s32
3206brcmf_configure_wpaie(struct net_device *ndev, struct brcmf_vs_tlv *wpa_ie,
3207 bool is_rsn_ie)
3208{
3209 struct brcmf_if *ifp = netdev_priv(ndev);
3210 u32 auth = 0; /* d11 open authentication */
3211 u16 count;
3212 s32 err = 0;
3213 s32 len = 0;
3214 u32 i;
3215 u32 wsec;
3216 u32 pval = 0;
3217 u32 gval = 0;
3218 u32 wpa_auth = 0;
3219 u32 offset;
3220 u8 *data;
3221 u16 rsn_cap;
3222 u32 wme_bss_disable;
3223
3224 brcmf_dbg(TRACE, "Enter\n");
3225 if (wpa_ie == NULL)
3226 goto exit;
3227
3228 len = wpa_ie->len + TLV_HDR_LEN;
3229 data = (u8 *)wpa_ie;
3230 offset = TLV_HDR_LEN;
3231 if (!is_rsn_ie)
3232 offset += VS_IE_FIXED_HDR_LEN;
3233 else
3234 offset += WPA_IE_VERSION_LEN;
3235
3236 /* check for multicast cipher suite */
3237 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3238 err = -EINVAL;
3239 brcmf_err("no multicast cipher suite\n");
3240 goto exit;
3241 }
3242
3243 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3244 err = -EINVAL;
3245 brcmf_err("ivalid OUI\n");
3246 goto exit;
3247 }
3248 offset += TLV_OUI_LEN;
3249
3250 /* pick up multicast cipher */
3251 switch (data[offset]) {
3252 case WPA_CIPHER_NONE:
3253 gval = 0;
3254 break;
3255 case WPA_CIPHER_WEP_40:
3256 case WPA_CIPHER_WEP_104:
3257 gval = WEP_ENABLED;
3258 break;
3259 case WPA_CIPHER_TKIP:
3260 gval = TKIP_ENABLED;
3261 break;
3262 case WPA_CIPHER_AES_CCM:
3263 gval = AES_ENABLED;
3264 break;
3265 default:
3266 err = -EINVAL;
3267 brcmf_err("Invalid multi cast cipher info\n");
3268 goto exit;
3269 }
3270
3271 offset++;
3272 /* walk thru unicast cipher list and pick up what we recognize */
3273 count = data[offset] + (data[offset + 1] << 8);
3274 offset += WPA_IE_SUITE_COUNT_LEN;
3275 /* Check for unicast suite(s) */
3276 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3277 err = -EINVAL;
3278 brcmf_err("no unicast cipher suite\n");
3279 goto exit;
3280 }
3281 for (i = 0; i < count; i++) {
3282 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3283 err = -EINVAL;
3284 brcmf_err("ivalid OUI\n");
3285 goto exit;
3286 }
3287 offset += TLV_OUI_LEN;
3288 switch (data[offset]) {
3289 case WPA_CIPHER_NONE:
3290 break;
3291 case WPA_CIPHER_WEP_40:
3292 case WPA_CIPHER_WEP_104:
3293 pval |= WEP_ENABLED;
3294 break;
3295 case WPA_CIPHER_TKIP:
3296 pval |= TKIP_ENABLED;
3297 break;
3298 case WPA_CIPHER_AES_CCM:
3299 pval |= AES_ENABLED;
3300 break;
3301 default:
3302 brcmf_err("Ivalid unicast security info\n");
3303 }
3304 offset++;
3305 }
3306 /* walk thru auth management suite list and pick up what we recognize */
3307 count = data[offset] + (data[offset + 1] << 8);
3308 offset += WPA_IE_SUITE_COUNT_LEN;
3309 /* Check for auth key management suite(s) */
3310 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3311 err = -EINVAL;
3312 brcmf_err("no auth key mgmt suite\n");
3313 goto exit;
3314 }
3315 for (i = 0; i < count; i++) {
3316 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3317 err = -EINVAL;
3318 brcmf_err("ivalid OUI\n");
3319 goto exit;
3320 }
3321 offset += TLV_OUI_LEN;
3322 switch (data[offset]) {
3323 case RSN_AKM_NONE:
3324 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3325 wpa_auth |= WPA_AUTH_NONE;
3326 break;
3327 case RSN_AKM_UNSPECIFIED:
3328 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3329 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3330 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3331 break;
3332 case RSN_AKM_PSK:
3333 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3334 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3335 (wpa_auth |= WPA_AUTH_PSK);
3336 break;
3337 default:
3338 brcmf_err("Ivalid key mgmt info\n");
3339 }
3340 offset++;
3341 }
3342
3343 if (is_rsn_ie) {
3344 wme_bss_disable = 1;
3345 if ((offset + RSN_CAP_LEN) <= len) {
3346 rsn_cap = data[offset] + (data[offset + 1] << 8);
3347 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3348 wme_bss_disable = 0;
3349 }
3350 /* set wme_bss_disable to sync RSN Capabilities */
3351 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3352 wme_bss_disable);
3353 if (err < 0) {
3354 brcmf_err("wme_bss_disable error %d\n", err);
3355 goto exit;
3356 }
3357 }
3358 /* FOR WPS , set SES_OW_ENABLED */
3359 wsec = (pval | gval | SES_OW_ENABLED);
3360
3361 /* set auth */
3362 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3363 if (err < 0) {
3364 brcmf_err("auth error %d\n", err);
3365 goto exit;
3366 }
3367 /* set wsec */
3368 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3369 if (err < 0) {
3370 brcmf_err("wsec error %d\n", err);
3371 goto exit;
3372 }
3373 /* set upper-layer auth */
3374 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3375 if (err < 0) {
3376 brcmf_err("wpa_auth error %d\n", err);
3377 goto exit;
3378 }
3379
3380exit:
3381 return err;
3382}
3383
3384static s32
3385brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3386 struct parsed_vndr_ies *vndr_ies)
3387{
3388 s32 err = 0;
3389 struct brcmf_vs_tlv *vndrie;
3390 struct brcmf_tlv *ie;
3391 struct parsed_vndr_ie_info *parsed_info;
3392 s32 remaining_len;
3393
3394 remaining_len = (s32)vndr_ie_len;
3395 memset(vndr_ies, 0, sizeof(*vndr_ies));
3396
3397 ie = (struct brcmf_tlv *)vndr_ie_buf;
3398 while (ie) {
3399 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3400 goto next;
3401 vndrie = (struct brcmf_vs_tlv *)ie;
3402 /* len should be bigger than OUI length + one */
3403 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3404 brcmf_err("invalid vndr ie. length is too small %d\n",
3405 vndrie->len);
3406 goto next;
3407 }
3408 /* if wpa or wme ie, do not add ie */
3409 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3410 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3411 (vndrie->oui_type == WME_OUI_TYPE))) {
3412 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3413 goto next;
3414 }
3415
3416 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3417
3418 /* save vndr ie information */
3419 parsed_info->ie_ptr = (char *)vndrie;
3420 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3421 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3422
3423 vndr_ies->count++;
3424
3425 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3426 parsed_info->vndrie.oui[0],
3427 parsed_info->vndrie.oui[1],
3428 parsed_info->vndrie.oui[2],
3429 parsed_info->vndrie.oui_type);
3430
3431 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3432 break;
3433next:
3434 remaining_len -= (ie->len + TLV_HDR_LEN);
3435 if (remaining_len <= TLV_HDR_LEN)
3436 ie = NULL;
3437 else
3438 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3439 TLV_HDR_LEN);
3440 }
3441 return err;
3442}
3443
3444static u32
3445brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3446{
3447
3448 __le32 iecount_le;
3449 __le32 pktflag_le;
3450
3451 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3452 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3453
3454 iecount_le = cpu_to_le32(1);
3455 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3456
3457 pktflag_le = cpu_to_le32(pktflag);
3458 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3459
3460 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3461
3462 return ie_len + VNDR_IE_HDR_SIZE;
3463}
3464
3465s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3466 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3467{
3468 struct brcmf_if *ifp;
3469 struct vif_saved_ie *saved_ie;
3470 s32 err = 0;
3471 u8 *iovar_ie_buf;
3472 u8 *curr_ie_buf;
3473 u8 *mgmt_ie_buf = NULL;
3474 int mgmt_ie_buf_len;
3475 u32 *mgmt_ie_len;
3476 u32 del_add_ie_buf_len = 0;
3477 u32 total_ie_buf_len = 0;
3478 u32 parsed_ie_buf_len = 0;
3479 struct parsed_vndr_ies old_vndr_ies;
3480 struct parsed_vndr_ies new_vndr_ies;
3481 struct parsed_vndr_ie_info *vndrie_info;
3482 s32 i;
3483 u8 *ptr;
3484 int remained_buf_len;
3485
3486 if (!vif)
3487 return -ENODEV;
3488 ifp = vif->ifp;
3489 saved_ie = &vif->saved_ie;
3490
3491 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3492 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3493 if (!iovar_ie_buf)
3494 return -ENOMEM;
3495 curr_ie_buf = iovar_ie_buf;
3496 switch (pktflag) {
3497 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3498 mgmt_ie_buf = saved_ie->probe_req_ie;
3499 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3500 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3501 break;
3502 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3503 mgmt_ie_buf = saved_ie->probe_res_ie;
3504 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3505 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3506 break;
3507 case BRCMF_VNDR_IE_BEACON_FLAG:
3508 mgmt_ie_buf = saved_ie->beacon_ie;
3509 mgmt_ie_len = &saved_ie->beacon_ie_len;
3510 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3511 break;
3512 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3513 mgmt_ie_buf = saved_ie->assoc_req_ie;
3514 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3515 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3516 break;
3517 default:
3518 err = -EPERM;
3519 brcmf_err("not suitable type\n");
3520 goto exit;
3521 }
3522
3523 if (vndr_ie_len > mgmt_ie_buf_len) {
3524 err = -ENOMEM;
3525 brcmf_err("extra IE size too big\n");
3526 goto exit;
3527 }
3528
3529 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3530 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3531 ptr = curr_ie_buf;
3532 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3533 for (i = 0; i < new_vndr_ies.count; i++) {
3534 vndrie_info = &new_vndr_ies.ie_info[i];
3535 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3536 vndrie_info->ie_len);
3537 parsed_ie_buf_len += vndrie_info->ie_len;
3538 }
3539 }
3540
3541 if (mgmt_ie_buf && *mgmt_ie_len) {
3542 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3543 (memcmp(mgmt_ie_buf, curr_ie_buf,
3544 parsed_ie_buf_len) == 0)) {
3545 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3546 goto exit;
3547 }
3548
3549 /* parse old vndr_ie */
3550 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3551
3552 /* make a command to delete old ie */
3553 for (i = 0; i < old_vndr_ies.count; i++) {
3554 vndrie_info = &old_vndr_ies.ie_info[i];
3555
3556 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3557 vndrie_info->vndrie.id,
3558 vndrie_info->vndrie.len,
3559 vndrie_info->vndrie.oui[0],
3560 vndrie_info->vndrie.oui[1],
3561 vndrie_info->vndrie.oui[2]);
3562
3563 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3564 vndrie_info->ie_ptr,
3565 vndrie_info->ie_len,
3566 "del");
3567 curr_ie_buf += del_add_ie_buf_len;
3568 total_ie_buf_len += del_add_ie_buf_len;
3569 }
3570 }
3571
3572 *mgmt_ie_len = 0;
3573 /* Add if there is any extra IE */
3574 if (mgmt_ie_buf && parsed_ie_buf_len) {
3575 ptr = mgmt_ie_buf;
3576
3577 remained_buf_len = mgmt_ie_buf_len;
3578
3579 /* make a command to add new ie */
3580 for (i = 0; i < new_vndr_ies.count; i++) {
3581 vndrie_info = &new_vndr_ies.ie_info[i];
3582
3583 /* verify remained buf size before copy data */
3584 if (remained_buf_len < (vndrie_info->vndrie.len +
3585 VNDR_IE_VSIE_OFFSET)) {
3586 brcmf_err("no space in mgmt_ie_buf: len left %d",
3587 remained_buf_len);
3588 break;
3589 }
3590 remained_buf_len -= (vndrie_info->ie_len +
3591 VNDR_IE_VSIE_OFFSET);
3592
3593 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3594 vndrie_info->vndrie.id,
3595 vndrie_info->vndrie.len,
3596 vndrie_info->vndrie.oui[0],
3597 vndrie_info->vndrie.oui[1],
3598 vndrie_info->vndrie.oui[2]);
3599
3600 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3601 vndrie_info->ie_ptr,
3602 vndrie_info->ie_len,
3603 "add");
3604
3605 /* save the parsed IE in wl struct */
3606 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3607 vndrie_info->ie_len);
3608 *mgmt_ie_len += vndrie_info->ie_len;
3609
3610 curr_ie_buf += del_add_ie_buf_len;
3611 total_ie_buf_len += del_add_ie_buf_len;
3612 }
3613 }
3614 if (total_ie_buf_len) {
3615 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3616 total_ie_buf_len);
3617 if (err)
3618 brcmf_err("vndr ie set error : %d\n", err);
3619 }
3620
3621exit:
3622 kfree(iovar_ie_buf);
3623 return err;
3624}
3625
3626s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3627{
3628 s32 pktflags[] = {
3629 BRCMF_VNDR_IE_PRBREQ_FLAG,
3630 BRCMF_VNDR_IE_PRBRSP_FLAG,
3631 BRCMF_VNDR_IE_BEACON_FLAG
3632 };
3633 int i;
3634
3635 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3636 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3637
3638 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3639 return 0;
3640}
3641
3642static s32
3643brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3644 struct cfg80211_beacon_data *beacon)
3645{
3646 s32 err;
3647
3648 /* Set Beacon IEs to FW */
3649 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3650 beacon->tail, beacon->tail_len);
3651 if (err) {
3652 brcmf_err("Set Beacon IE Failed\n");
3653 return err;
3654 }
3655 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3656
3657 /* Set Probe Response IEs to FW */
3658 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3659 beacon->proberesp_ies,
3660 beacon->proberesp_ies_len);
3661 if (err)
3662 brcmf_err("Set Probe Resp IE Failed\n");
3663 else
3664 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3665
3666 return err;
3667}
3668
3669static s32
3670brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3671 struct cfg80211_ap_settings *settings)
3672{
3673 s32 ie_offset;
3674 struct brcmf_if *ifp = netdev_priv(ndev);
3675 struct brcmf_tlv *ssid_ie;
3676 struct brcmf_ssid_le ssid_le;
3677 s32 err = -EPERM;
3678 struct brcmf_tlv *rsn_ie;
3679 struct brcmf_vs_tlv *wpa_ie;
3680 struct brcmf_join_params join_params;
3681 enum nl80211_iftype dev_role;
3682 struct brcmf_fil_bss_enable_le bss_enable;
3683
3684 brcmf_dbg(TRACE, "channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
3685 cfg80211_get_chandef_type(&settings->chandef),
3686 settings->beacon_interval,
3687 settings->dtim_period);
3688 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3689 settings->ssid, settings->ssid_len, settings->auth_type,
3690 settings->inactivity_timeout);
3691
3692 dev_role = ifp->vif->wdev.iftype;
3693
3694 memset(&ssid_le, 0, sizeof(ssid_le));
3695 if (settings->ssid == NULL || settings->ssid_len == 0) {
3696 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3697 ssid_ie = brcmf_parse_tlvs(
3698 (u8 *)&settings->beacon.head[ie_offset],
3699 settings->beacon.head_len - ie_offset,
3700 WLAN_EID_SSID);
3701 if (!ssid_ie)
3702 return -EINVAL;
3703
3704 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3705 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3706 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3707 } else {
3708 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3709 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3710 }
3711
3712 brcmf_set_mpc(ndev, 0);
3713
3714 /* find the RSN_IE */
3715 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3716 settings->beacon.tail_len, WLAN_EID_RSN);
3717
3718 /* find the WPA_IE */
3719 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3720 settings->beacon.tail_len);
3721
3722 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3723 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3724 if (wpa_ie != NULL) {
3725 /* WPA IE */
3726 err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3727 if (err < 0)
3728 goto exit;
3729 } else {
3730 /* RSN IE */
3731 err = brcmf_configure_wpaie(ndev,
3732 (struct brcmf_vs_tlv *)rsn_ie, true);
3733 if (err < 0)
3734 goto exit;
3735 }
3736 } else {
3737 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3738 brcmf_configure_opensecurity(ifp);
3739 }
3740
3741 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3742
3743 if (settings->beacon_interval) {
3744 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3745 settings->beacon_interval);
3746 if (err < 0) {
3747 brcmf_err("Beacon Interval Set Error, %d\n", err);
3748 goto exit;
3749 }
3750 }
3751 if (settings->dtim_period) {
3752 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3753 settings->dtim_period);
3754 if (err < 0) {
3755 brcmf_err("DTIM Interval Set Error, %d\n", err);
3756 goto exit;
3757 }
3758 }
3759
3760 if (dev_role == NL80211_IFTYPE_AP) {
3761 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3762 if (err < 0) {
3763 brcmf_err("BRCMF_C_DOWN error %d\n", err);
3764 goto exit;
3765 }
3766 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3767 }
3768
3769 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3770 if (err < 0) {
3771 brcmf_err("SET INFRA error %d\n", err);
3772 goto exit;
3773 }
3774 if (dev_role == NL80211_IFTYPE_AP) {
3775 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3776 if (err < 0) {
3777 brcmf_err("setting AP mode failed %d\n", err);
3778 goto exit;
3779 }
3780 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3781 if (err < 0) {
3782 brcmf_err("BRCMF_C_UP error (%d)\n", err);
3783 goto exit;
3784 }
3785
3786 memset(&join_params, 0, sizeof(join_params));
3787 /* join parameters starts with ssid */
3788 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3789 /* create softap */
3790 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3791 &join_params, sizeof(join_params));
3792 if (err < 0) {
3793 brcmf_err("SET SSID error (%d)\n", err);
3794 goto exit;
3795 }
3796 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3797 } else {
3798 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3799 sizeof(ssid_le));
3800 if (err < 0) {
3801 brcmf_err("setting ssid failed %d\n", err);
3802 goto exit;
3803 }
3804 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3805 bss_enable.enable = cpu_to_le32(1);
3806 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3807 sizeof(bss_enable));
3808 if (err < 0) {
3809 brcmf_err("bss_enable config failed %d\n", err);
3810 goto exit;
3811 }
3812
3813 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3814 }
3815 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3816 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3817
3818exit:
3819 if (err)
3820 brcmf_set_mpc(ndev, 1);
3821 return err;
3822}
3823
3824static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3825{
3826 struct brcmf_if *ifp = netdev_priv(ndev);
3827 s32 err = -EPERM;
3828 struct brcmf_fil_bss_enable_le bss_enable;
3829
3830 brcmf_dbg(TRACE, "Enter\n");
3831
3832 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3833 /* Due to most likely deauths outstanding we sleep */
3834 /* first to make sure they get processed by fw. */
3835 msleep(400);
3836 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
3837 if (err < 0) {
3838 brcmf_err("setting AP mode failed %d\n", err);
3839 goto exit;
3840 }
3841 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
3842 if (err < 0) {
3843 brcmf_err("BRCMF_C_UP error %d\n", err);
3844 goto exit;
3845 }
3846 } else {
3847 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3848 bss_enable.enable = cpu_to_le32(0);
3849 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3850 sizeof(bss_enable));
3851 if (err < 0)
3852 brcmf_err("bss_enable config failed %d\n", err);
3853 }
3854 brcmf_set_mpc(ndev, 1);
3855 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3856 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3857
3858exit:
3859 return err;
3860}
3861
3862static s32
3863brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
3864 struct cfg80211_beacon_data *info)
3865{
3866 struct brcmf_if *ifp = netdev_priv(ndev);
3867 s32 err;
3868
3869 brcmf_dbg(TRACE, "Enter\n");
3870
3871 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
3872
3873 return err;
3874}
3875
3876static int
3877brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
3878 u8 *mac)
3879{
3880 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3881 struct brcmf_scb_val_le scbval;
3882 struct brcmf_if *ifp = netdev_priv(ndev);
3883 s32 err;
3884
3885 if (!mac)
3886 return -EFAULT;
3887
3888 brcmf_dbg(TRACE, "Enter %pM\n", mac);
3889
3890 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
3891 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
3892 if (!check_vif_up(ifp->vif))
3893 return -EIO;
3894
3895 memcpy(&scbval.ea, mac, ETH_ALEN);
3896 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
3897 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
3898 &scbval, sizeof(scbval));
3899 if (err)
3900 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
3901
3902 brcmf_dbg(TRACE, "Exit\n");
3903 return err;
3904}
3905
3906
3907static void
3908brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
3909 struct wireless_dev *wdev,
3910 u16 frame_type, bool reg)
3911{
3912 struct brcmf_if *ifp = netdev_priv(wdev->netdev);
3913 struct brcmf_cfg80211_vif *vif = ifp->vif;
3914 u16 mgmt_type;
3915
3916 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
3917
3918 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
3919 if (reg)
3920 vif->mgmt_rx_reg |= BIT(mgmt_type);
3921 else
3922 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
3923}
3924
3925
3926static int
3927brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3928 struct ieee80211_channel *chan, bool offchan,
3929 unsigned int wait, const u8 *buf, size_t len,
3930 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
3931{
3932 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3933 const struct ieee80211_mgmt *mgmt;
3934 struct brcmf_if *ifp;
3935 struct brcmf_cfg80211_vif *vif;
3936 s32 err = 0;
3937 s32 ie_offset;
3938 s32 ie_len;
3939 struct brcmf_fil_action_frame_le *action_frame;
3940 struct brcmf_fil_af_params_le *af_params;
3941 bool ack;
3942 s32 chan_nr;
3943
3944 brcmf_dbg(TRACE, "Enter\n");
3945
3946 *cookie = 0;
3947
3948 mgmt = (const struct ieee80211_mgmt *)buf;
3949
3950 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
3951 brcmf_err("Driver only allows MGMT packet type\n");
3952 return -EPERM;
3953 }
3954
3955 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
3956 /* Right now the only reason to get a probe response */
3957 /* is for p2p listen response or for p2p GO from */
3958 /* wpa_supplicant. Unfortunately the probe is send */
3959 /* on primary ndev, while dongle wants it on the p2p */
3960 /* vif. Since this is only reason for a probe */
3961 /* response to be sent, the vif is taken from cfg. */
3962 /* If ever desired to send proberesp for non p2p */
3963 /* response then data should be checked for */
3964 /* "DIRECT-". Note in future supplicant will take */
3965 /* dedicated p2p wdev to do this and then this 'hack'*/
3966 /* is not needed anymore. */
3967 ie_offset = DOT11_MGMT_HDR_LEN +
3968 DOT11_BCN_PRB_FIXED_LEN;
3969 ie_len = len - ie_offset;
3970 ifp = netdev_priv(wdev->netdev);
3971 vif = ifp->vif;
3972 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
3973 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
3974 err = brcmf_vif_set_mgmt_ie(vif,
3975 BRCMF_VNDR_IE_PRBRSP_FLAG,
3976 &buf[ie_offset],
3977 ie_len);
3978 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
3979 GFP_KERNEL);
3980 } else if (ieee80211_is_action(mgmt->frame_control)) {
3981 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
3982 if (af_params == NULL) {
3983 brcmf_err("unable to allocate frame\n");
3984 err = -ENOMEM;
3985 goto exit;
3986 }
3987 action_frame = &af_params->action_frame;
3988 /* Add the packet Id */
3989 action_frame->packet_id = cpu_to_le32(*cookie);
3990 /* Add BSSID */
3991 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
3992 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
3993 /* Add the length exepted for 802.11 header */
3994 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
3995 /* Add the channel */
3996 chan_nr = ieee80211_frequency_to_channel(chan->center_freq);
3997 af_params->channel = cpu_to_le32(chan_nr);
3998
3999 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4000 le16_to_cpu(action_frame->len));
4001
4002 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4003 *cookie, le16_to_cpu(action_frame->len),
4004 chan->center_freq);
4005
4006 ack = brcmf_p2p_send_action_frame(cfg, wdev->netdev,
4007 af_params);
4008
4009 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4010 GFP_KERNEL);
4011 kfree(af_params);
4012 } else {
4013 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4014 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4015 }
4016
4017exit:
4018 return err;
4019}
4020
4021
4022static int
4023brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4024 struct wireless_dev *wdev,
4025 u64 cookie)
4026{
4027 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4028 struct brcmf_cfg80211_vif *vif;
4029 int err = 0;
4030
4031 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4032
4033 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4034 if (vif == NULL) {
4035 brcmf_err("No p2p device available for probe response\n");
4036 err = -ENODEV;
4037 goto exit;
4038 }
4039 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4040exit:
4041 return err;
4042}
4043
4044static struct cfg80211_ops wl_cfg80211_ops = {
4045 .add_virtual_intf = brcmf_cfg80211_add_iface,
4046 .del_virtual_intf = brcmf_cfg80211_del_iface,
4047 .change_virtual_intf = brcmf_cfg80211_change_iface,
4048 .scan = brcmf_cfg80211_scan,
4049 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4050 .join_ibss = brcmf_cfg80211_join_ibss,
4051 .leave_ibss = brcmf_cfg80211_leave_ibss,
4052 .get_station = brcmf_cfg80211_get_station,
4053 .set_tx_power = brcmf_cfg80211_set_tx_power,
4054 .get_tx_power = brcmf_cfg80211_get_tx_power,
4055 .add_key = brcmf_cfg80211_add_key,
4056 .del_key = brcmf_cfg80211_del_key,
4057 .get_key = brcmf_cfg80211_get_key,
4058 .set_default_key = brcmf_cfg80211_config_default_key,
4059 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4060 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4061 .connect = brcmf_cfg80211_connect,
4062 .disconnect = brcmf_cfg80211_disconnect,
4063 .suspend = brcmf_cfg80211_suspend,
4064 .resume = brcmf_cfg80211_resume,
4065 .set_pmksa = brcmf_cfg80211_set_pmksa,
4066 .del_pmksa = brcmf_cfg80211_del_pmksa,
4067 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4068 .start_ap = brcmf_cfg80211_start_ap,
4069 .stop_ap = brcmf_cfg80211_stop_ap,
4070 .change_beacon = brcmf_cfg80211_change_beacon,
4071 .del_station = brcmf_cfg80211_del_station,
4072 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4073 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4074 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4075 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4076 .remain_on_channel = brcmf_p2p_remain_on_channel,
4077 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4078#ifdef CONFIG_NL80211_TESTMODE
4079 .testmode_cmd = brcmf_cfg80211_testmode
4080#endif
4081};
4082
4083static s32 brcmf_nl80211_iftype_to_mode(enum nl80211_iftype type)
4084{
4085 switch (type) {
4086 case NL80211_IFTYPE_AP_VLAN:
4087 case NL80211_IFTYPE_WDS:
4088 case NL80211_IFTYPE_MONITOR:
4089 case NL80211_IFTYPE_MESH_POINT:
4090 return -ENOTSUPP;
4091 case NL80211_IFTYPE_ADHOC:
4092 return WL_MODE_IBSS;
4093 case NL80211_IFTYPE_STATION:
4094 case NL80211_IFTYPE_P2P_CLIENT:
4095 return WL_MODE_BSS;
4096 case NL80211_IFTYPE_AP:
4097 case NL80211_IFTYPE_P2P_GO:
4098 return WL_MODE_AP;
4099 case NL80211_IFTYPE_P2P_DEVICE:
4100 return WL_MODE_P2P;
4101 case NL80211_IFTYPE_UNSPECIFIED:
4102 default:
4103 break;
4104 }
4105
4106 return -EINVAL;
4107}
4108
4109static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
4110{
4111 /* scheduled scan settings */
4112 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
4113 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
4114 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4115 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
4116}
4117
4118static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
4119 {
4120 .max = 2,
4121 .types = BIT(NL80211_IFTYPE_STATION) |
4122 BIT(NL80211_IFTYPE_ADHOC) |
4123 BIT(NL80211_IFTYPE_AP)
4124 },
4125 {
4126 .max = 1,
4127 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
4128 },
4129 {
4130 .max = 1,
4131 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
4132 BIT(NL80211_IFTYPE_P2P_GO)
4133 },
4134};
4135static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
4136 {
4137 .max_interfaces = BRCMF_IFACE_MAX_CNT,
4138 .num_different_channels = 1, /* no multi-channel for now */
4139 .n_limits = ARRAY_SIZE(brcmf_iface_limits),
4140 .limits = brcmf_iface_limits
4141 }
4142};
4143
4144static const struct ieee80211_txrx_stypes
4145brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
4146 [NL80211_IFTYPE_STATION] = {
4147 .tx = 0xffff,
4148 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
4149 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
4150 },
4151 [NL80211_IFTYPE_P2P_CLIENT] = {
4152 .tx = 0xffff,
4153 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
4154 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
4155 },
4156 [NL80211_IFTYPE_P2P_GO] = {
4157 .tx = 0xffff,
4158 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
4159 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
4160 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
4161 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
4162 BIT(IEEE80211_STYPE_AUTH >> 4) |
4163 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
4164 BIT(IEEE80211_STYPE_ACTION >> 4)
4165 }
4166};
4167
4168static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
4169{
4170 struct wiphy *wiphy;
4171 s32 err = 0;
4172
4173 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
4174 if (!wiphy) {
4175 brcmf_err("Could not allocate wiphy device\n");
4176 return ERR_PTR(-ENOMEM);
4177 }
4178 set_wiphy_dev(wiphy, phydev);
4179 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
4180 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4181 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
4182 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4183 BIT(NL80211_IFTYPE_ADHOC) |
4184 BIT(NL80211_IFTYPE_AP) |
4185 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4186 BIT(NL80211_IFTYPE_P2P_GO) |
4187 BIT(NL80211_IFTYPE_P2P_DEVICE);
4188 wiphy->iface_combinations = brcmf_iface_combos;
4189 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
4190 wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
4191 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set
4192 * it as 11a by default.
4193 * This will be updated with
4194 * 11n phy tables in
4195 * "ifconfig up"
4196 * if phy has 11n capability
4197 */
4198 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4199 wiphy->cipher_suites = __wl_cipher_suites;
4200 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
4201 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
4202 WIPHY_FLAG_OFFCHAN_TX |
4203 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
4204 wiphy->mgmt_stypes = brcmf_txrx_stypes;
4205 wiphy->max_remain_on_channel_duration = 5000;
4206 brcmf_wiphy_pno_params(wiphy);
4207 err = wiphy_register(wiphy);
4208 if (err < 0) {
4209 brcmf_err("Could not register wiphy device (%d)\n", err);
4210 wiphy_free(wiphy);
4211 return ERR_PTR(err);
4212 }
4213 return wiphy;
4214}
4215
4216struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4217 enum nl80211_iftype type,
4218 bool pm_block)
4219{
4220 struct brcmf_cfg80211_vif *vif;
4221
4222 if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
4223 return ERR_PTR(-ENOSPC);
4224
4225 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4226 sizeof(*vif));
4227 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4228 if (!vif)
4229 return ERR_PTR(-ENOMEM);
4230
4231 vif->wdev.wiphy = cfg->wiphy;
4232 vif->wdev.iftype = type;
4233
4234 vif->mode = brcmf_nl80211_iftype_to_mode(type);
4235 vif->pm_block = pm_block;
4236 vif->roam_off = -1;
4237
4238 brcmf_init_prof(&vif->profile);
4239
4240 list_add_tail(&vif->list, &cfg->vif_list);
4241 cfg->vif_cnt++;
4242 return vif;
4243}
4244
4245void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4246{
4247 struct brcmf_cfg80211_info *cfg;
4248 struct wiphy *wiphy;
4249
4250 wiphy = vif->wdev.wiphy;
4251 cfg = wiphy_priv(wiphy);
4252 list_del(&vif->list);
4253 cfg->vif_cnt--;
4254
4255 kfree(vif);
4256 if (!cfg->vif_cnt) {
4257 wiphy_unregister(wiphy);
4258 wiphy_free(wiphy);
4259 }
4260}
4261
4262static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4263{
4264 u32 event = e->event_code;
4265 u32 status = e->status;
4266
4267 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4268 brcmf_dbg(CONN, "Processing set ssid\n");
4269 return true;
4270 }
4271
4272 return false;
4273}
4274
4275static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4276{
4277 u32 event = e->event_code;
4278 u16 flags = e->flags;
4279
4280 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) {
4281 brcmf_dbg(CONN, "Processing link down\n");
4282 return true;
4283 }
4284 return false;
4285}
4286
4287static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4288 const struct brcmf_event_msg *e)
4289{
4290 u32 event = e->event_code;
4291 u32 status = e->status;
4292
4293 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4294 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4295 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4296 return true;
4297 }
4298
4299 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4300 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4301 return true;
4302 }
4303
4304 return false;
4305}
4306
4307static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4308{
4309 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4310
4311 kfree(conn_info->req_ie);
4312 conn_info->req_ie = NULL;
4313 conn_info->req_ie_len = 0;
4314 kfree(conn_info->resp_ie);
4315 conn_info->resp_ie = NULL;
4316 conn_info->resp_ie_len = 0;
4317}
4318
4319static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4320 struct brcmf_if *ifp)
4321{
4322 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4323 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4324 u32 req_len;
4325 u32 resp_len;
4326 s32 err = 0;
4327
4328 brcmf_clear_assoc_ies(cfg);
4329
4330 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4331 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4332 if (err) {
4333 brcmf_err("could not get assoc info (%d)\n", err);
4334 return err;
4335 }
4336 assoc_info =
4337 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4338 req_len = le32_to_cpu(assoc_info->req_len);
4339 resp_len = le32_to_cpu(assoc_info->resp_len);
4340 if (req_len) {
4341 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4342 cfg->extra_buf,
4343 WL_ASSOC_INFO_MAX);
4344 if (err) {
4345 brcmf_err("could not get assoc req (%d)\n", err);
4346 return err;
4347 }
4348 conn_info->req_ie_len = req_len;
4349 conn_info->req_ie =
4350 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4351 GFP_KERNEL);
4352 } else {
4353 conn_info->req_ie_len = 0;
4354 conn_info->req_ie = NULL;
4355 }
4356 if (resp_len) {
4357 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4358 cfg->extra_buf,
4359 WL_ASSOC_INFO_MAX);
4360 if (err) {
4361 brcmf_err("could not get assoc resp (%d)\n", err);
4362 return err;
4363 }
4364 conn_info->resp_ie_len = resp_len;
4365 conn_info->resp_ie =
4366 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4367 GFP_KERNEL);
4368 } else {
4369 conn_info->resp_ie_len = 0;
4370 conn_info->resp_ie = NULL;
4371 }
4372 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4373 conn_info->req_ie_len, conn_info->resp_ie_len);
4374
4375 return err;
4376}
4377
4378static s32
4379brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4380 struct net_device *ndev,
4381 const struct brcmf_event_msg *e)
4382{
4383 struct brcmf_if *ifp = netdev_priv(ndev);
4384 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4385 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4386 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4387 struct ieee80211_channel *notify_channel = NULL;
4388 struct ieee80211_supported_band *band;
4389 struct brcmf_bss_info_le *bi;
4390 u32 freq;
4391 s32 err = 0;
4392 u32 target_channel;
4393 u8 *buf;
4394
4395 brcmf_dbg(TRACE, "Enter\n");
4396
4397 brcmf_get_assoc_ies(cfg, ifp);
4398 memcpy(profile->bssid, e->addr, ETH_ALEN);
4399 brcmf_update_bss_info(cfg, ifp);
4400
4401 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4402 if (buf == NULL) {
4403 err = -ENOMEM;
4404 goto done;
4405 }
4406
4407 /* data sent to dongle has to be little endian */
4408 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4409 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4410 buf, WL_BSS_INFO_MAX);
4411
4412 if (err)
4413 goto done;
4414
4415 bi = (struct brcmf_bss_info_le *)(buf + 4);
4416 target_channel = bi->ctl_ch ? bi->ctl_ch :
4417 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
4418
4419 if (target_channel <= CH_MAX_2G_CHANNEL)
4420 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4421 else
4422 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4423
4424 freq = ieee80211_channel_to_frequency(target_channel, band->band);
4425 notify_channel = ieee80211_get_channel(wiphy, freq);
4426
4427done:
4428 kfree(buf);
4429 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4430 conn_info->req_ie, conn_info->req_ie_len,
4431 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4432 brcmf_dbg(CONN, "Report roaming result\n");
4433
4434 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4435 brcmf_dbg(TRACE, "Exit\n");
4436 return err;
4437}
4438
4439static s32
4440brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4441 struct net_device *ndev, const struct brcmf_event_msg *e,
4442 bool completed)
4443{
4444 struct brcmf_if *ifp = netdev_priv(ndev);
4445 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4446 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4447 s32 err = 0;
4448
4449 brcmf_dbg(TRACE, "Enter\n");
4450
4451 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4452 &ifp->vif->sme_state)) {
4453 if (completed) {
4454 brcmf_get_assoc_ies(cfg, ifp);
4455 memcpy(profile->bssid, e->addr, ETH_ALEN);
4456 brcmf_update_bss_info(cfg, ifp);
4457 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4458 &ifp->vif->sme_state);
4459 }
4460 cfg80211_connect_result(ndev,
4461 (u8 *)profile->bssid,
4462 conn_info->req_ie,
4463 conn_info->req_ie_len,
4464 conn_info->resp_ie,
4465 conn_info->resp_ie_len,
4466 completed ? WLAN_STATUS_SUCCESS :
4467 WLAN_STATUS_AUTH_TIMEOUT,
4468 GFP_KERNEL);
4469 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4470 completed ? "succeeded" : "failed");
4471 }
4472 brcmf_dbg(TRACE, "Exit\n");
4473 return err;
4474}
4475
4476static s32
4477brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4478 struct net_device *ndev,
4479 const struct brcmf_event_msg *e, void *data)
4480{
4481 static int generation;
4482 u32 event = e->event_code;
4483 u32 reason = e->reason;
4484 struct station_info sinfo;
4485
4486 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4487 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4488 ndev != cfg_to_ndev(cfg)) {
4489 brcmf_dbg(CONN, "AP mode link down\n");
4490 complete(&cfg->vif_disabled);
4491 return 0;
4492 }
4493
4494 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4495 (reason == BRCMF_E_STATUS_SUCCESS)) {
4496 memset(&sinfo, 0, sizeof(sinfo));
4497 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4498 if (!data) {
4499 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4500 return -EINVAL;
4501 }
4502 sinfo.assoc_req_ies = data;
4503 sinfo.assoc_req_ies_len = e->datalen;
4504 generation++;
4505 sinfo.generation = generation;
4506 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4507 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4508 (event == BRCMF_E_DEAUTH_IND) ||
4509 (event == BRCMF_E_DEAUTH)) {
4510 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4511 }
4512 return 0;
4513}
4514
4515static s32
4516brcmf_notify_connect_status(struct brcmf_if *ifp,
4517 const struct brcmf_event_msg *e, void *data)
4518{
4519 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4520 struct net_device *ndev = ifp->ndev;
4521 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4522 s32 err = 0;
4523
4524 if (ifp->vif->mode == WL_MODE_AP) {
4525 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4526 } else if (brcmf_is_linkup(e)) {
4527 brcmf_dbg(CONN, "Linkup\n");
4528 if (brcmf_is_ibssmode(ifp->vif)) {
4529 memcpy(profile->bssid, e->addr, ETH_ALEN);
4530 wl_inform_ibss(cfg, ndev, e->addr);
4531 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
4532 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4533 &ifp->vif->sme_state);
4534 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4535 &ifp->vif->sme_state);
4536 } else
4537 brcmf_bss_connect_done(cfg, ndev, e, true);
4538 } else if (brcmf_is_linkdown(e)) {
4539 brcmf_dbg(CONN, "Linkdown\n");
4540 if (!brcmf_is_ibssmode(ifp->vif)) {
4541 brcmf_bss_connect_done(cfg, ndev, e, false);
4542 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED,
4543 &ifp->vif->sme_state))
4544 cfg80211_disconnected(ndev, 0, NULL, 0,
4545 GFP_KERNEL);
4546 }
4547 brcmf_link_down(ifp->vif);
4548 brcmf_init_prof(ndev_to_prof(ndev));
4549 if (ndev != cfg_to_ndev(cfg))
4550 complete(&cfg->vif_disabled);
4551 } else if (brcmf_is_nonetwork(cfg, e)) {
4552 if (brcmf_is_ibssmode(ifp->vif))
4553 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4554 &ifp->vif->sme_state);
4555 else
4556 brcmf_bss_connect_done(cfg, ndev, e, false);
4557 }
4558
4559 return err;
4560}
4561
4562static s32
4563brcmf_notify_roaming_status(struct brcmf_if *ifp,
4564 const struct brcmf_event_msg *e, void *data)
4565{
4566 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4567 s32 err = 0;
4568 u32 event = e->event_code;
4569 u32 status = e->status;
4570
4571 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4572 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4573 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4574 else
4575 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4576 }
4577
4578 return err;
4579}
4580
4581static s32
4582brcmf_notify_mic_status(struct brcmf_if *ifp,
4583 const struct brcmf_event_msg *e, void *data)
4584{
4585 u16 flags = e->flags;
4586 enum nl80211_key_type key_type;
4587
4588 if (flags & BRCMF_EVENT_MSG_GROUP)
4589 key_type = NL80211_KEYTYPE_GROUP;
4590 else
4591 key_type = NL80211_KEYTYPE_PAIRWISE;
4592
4593 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4594 NULL, GFP_KERNEL);
4595
4596 return 0;
4597}
4598
4599static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4600 const struct brcmf_event_msg *e, void *data)
4601{
4602 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4603 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4604 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4605 struct brcmf_cfg80211_vif *vif;
4606
4607 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4608 ifevent->action, ifevent->flags, ifevent->ifidx,
4609 ifevent->bssidx);
4610
4611 mutex_lock(&event->vif_event_lock);
4612 event->action = ifevent->action;
4613 vif = event->vif;
4614
4615 switch (ifevent->action) {
4616 case BRCMF_E_IF_ADD:
4617 /* waiting process may have timed out */
4618 if (!cfg->vif_event.vif) {
4619 mutex_unlock(&event->vif_event_lock);
4620 return -EBADF;
4621 }
4622
4623 ifp->vif = vif;
4624 vif->ifp = ifp;
4625 vif->wdev.netdev = ifp->ndev;
4626 ifp->ndev->ieee80211_ptr = &vif->wdev;
4627 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4628 mutex_unlock(&event->vif_event_lock);
4629 wake_up(&event->vif_wq);
4630 return 0;
4631
4632 case BRCMF_E_IF_DEL:
4633 ifp->vif = NULL;
4634 mutex_unlock(&event->vif_event_lock);
4635 /* event may not be upon user request */
4636 if (brcmf_cfg80211_vif_event_armed(cfg))
4637 wake_up(&event->vif_wq);
4638 return 0;
4639
4640 case BRCMF_E_IF_CHANGE:
4641 mutex_unlock(&event->vif_event_lock);
4642 wake_up(&event->vif_wq);
4643 return 0;
4644
4645 default:
4646 mutex_unlock(&event->vif_event_lock);
4647 break;
4648 }
4649 return -EINVAL;
4650}
4651
4652static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4653{
4654 conf->frag_threshold = (u32)-1;
4655 conf->rts_threshold = (u32)-1;
4656 conf->retry_short = (u32)-1;
4657 conf->retry_long = (u32)-1;
4658 conf->tx_power = -1;
4659}
4660
4661static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4662{
4663 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4664 brcmf_notify_connect_status);
4665 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4666 brcmf_notify_connect_status);
4667 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4668 brcmf_notify_connect_status);
4669 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4670 brcmf_notify_connect_status);
4671 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4672 brcmf_notify_connect_status);
4673 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4674 brcmf_notify_connect_status);
4675 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4676 brcmf_notify_roaming_status);
4677 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4678 brcmf_notify_mic_status);
4679 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4680 brcmf_notify_connect_status);
4681 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4682 brcmf_notify_sched_scan_results);
4683 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4684 brcmf_notify_vif_event);
4685 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4686 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4687 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4688 brcmf_p2p_notify_listen_complete);
4689 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4690 brcmf_p2p_notify_action_frame_rx);
4691 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4692 brcmf_p2p_notify_action_tx_complete);
4693 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4694 brcmf_p2p_notify_action_tx_complete);
4695}
4696
4697static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4698{
4699 kfree(cfg->conf);
4700 cfg->conf = NULL;
4701 kfree(cfg->escan_ioctl_buf);
4702 cfg->escan_ioctl_buf = NULL;
4703 kfree(cfg->extra_buf);
4704 cfg->extra_buf = NULL;
4705 kfree(cfg->pmk_list);
4706 cfg->pmk_list = NULL;
4707}
4708
4709static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4710{
4711 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4712 if (!cfg->conf)
4713 goto init_priv_mem_out;
4714 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4715 if (!cfg->escan_ioctl_buf)
4716 goto init_priv_mem_out;
4717 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4718 if (!cfg->extra_buf)
4719 goto init_priv_mem_out;
4720 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4721 if (!cfg->pmk_list)
4722 goto init_priv_mem_out;
4723
4724 return 0;
4725
4726init_priv_mem_out:
4727 brcmf_deinit_priv_mem(cfg);
4728
4729 return -ENOMEM;
4730}
4731
4732static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4733{
4734 s32 err = 0;
4735
4736 cfg->scan_request = NULL;
4737 cfg->pwr_save = true;
4738 cfg->roam_on = true; /* roam on & off switch.
4739 we enable roam per default */
4740 cfg->active_scan = true; /* we do active scan for
4741 specific scan per default */
4742 cfg->dongle_up = false; /* dongle is not up yet */
4743 err = brcmf_init_priv_mem(cfg);
4744 if (err)
4745 return err;
4746 brcmf_register_event_handlers(cfg);
4747 mutex_init(&cfg->usr_sync);
4748 brcmf_init_escan(cfg);
4749 brcmf_init_conf(cfg->conf);
4750 init_completion(&cfg->vif_disabled);
4751 return err;
4752}
4753
4754static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4755{
4756 cfg->dongle_up = false; /* dongle down */
4757 brcmf_abort_scanning(cfg);
4758 brcmf_deinit_priv_mem(cfg);
4759}
4760
4761static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4762{
4763 init_waitqueue_head(&event->vif_wq);
4764 mutex_init(&event->vif_event_lock);
4765}
4766
4767struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
4768 struct device *busdev)
4769{
4770 struct net_device *ndev = drvr->iflist[0]->ndev;
4771 struct brcmf_cfg80211_info *cfg;
4772 struct wiphy *wiphy;
4773 struct brcmf_cfg80211_vif *vif;
4774 struct brcmf_if *ifp;
4775 s32 err = 0;
4776
4777 if (!ndev) {
4778 brcmf_err("ndev is invalid\n");
4779 return NULL;
4780 }
4781
4782 ifp = netdev_priv(ndev);
4783 wiphy = brcmf_setup_wiphy(busdev);
4784 if (IS_ERR(wiphy))
4785 return NULL;
4786
4787 cfg = wiphy_priv(wiphy);
4788 cfg->wiphy = wiphy;
4789 cfg->pub = drvr;
4790 init_vif_event(&cfg->vif_event);
4791 INIT_LIST_HEAD(&cfg->vif_list);
4792
4793 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
4794 if (IS_ERR(vif)) {
4795 wiphy_free(wiphy);
4796 return NULL;
4797 }
4798
4799 vif->ifp = ifp;
4800 vif->wdev.netdev = ndev;
4801 ndev->ieee80211_ptr = &vif->wdev;
4802 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
4803
4804 err = wl_init_priv(cfg);
4805 if (err) {
4806 brcmf_err("Failed to init iwm_priv (%d)\n", err);
4807 goto cfg80211_attach_out;
4808 }
4809 ifp->vif = vif;
4810
4811 err = brcmf_p2p_attach(cfg);
4812 if (err) {
4813 brcmf_err("P2P initilisation failed (%d)\n", err);
4814 goto cfg80211_p2p_attach_out;
4815 }
4816
4817 return cfg;
4818
4819cfg80211_p2p_attach_out:
4820 wl_deinit_priv(cfg);
4821
4822cfg80211_attach_out:
4823 brcmf_free_vif(vif);
4824 wiphy_free(wiphy);
4825 return NULL;
4826}
4827
4828void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
4829{
4830 struct brcmf_cfg80211_vif *vif;
4831 struct brcmf_cfg80211_vif *tmp;
4832
4833 wl_deinit_priv(cfg);
4834 list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
4835 brcmf_free_vif(vif);
4836 }
4837}
4838
4839static s32
4840brcmf_dongle_roam(struct brcmf_if *ifp, u32 roamvar, u32 bcn_timeout)
4841{
4842 s32 err = 0;
4843 __le32 roamtrigger[2];
4844 __le32 roam_delta[2];
4845
4846 /*
4847 * Setup timeout if Beacons are lost and roam is
4848 * off to report link down
4849 */
4850 if (roamvar) {
4851 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4852 if (err) {
4853 brcmf_err("bcn_timeout error (%d)\n", err);
4854 goto dongle_rom_out;
4855 }
4856 }
4857
4858 /*
4859 * Enable/Disable built-in roaming to allow supplicant
4860 * to take care of roaming
4861 */
4862 brcmf_dbg(INFO, "Internal Roaming = %s\n", roamvar ? "Off" : "On");
4863 err = brcmf_fil_iovar_int_set(ifp, "roam_off", roamvar);
4864 if (err) {
4865 brcmf_err("roam_off error (%d)\n", err);
4866 goto dongle_rom_out;
4867 }
4868
4869 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4870 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4871 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4872 (void *)roamtrigger, sizeof(roamtrigger));
4873 if (err) {
4874 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4875 goto dongle_rom_out;
4876 }
4877
4878 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4879 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4880 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4881 (void *)roam_delta, sizeof(roam_delta));
4882 if (err) {
4883 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4884 goto dongle_rom_out;
4885 }
4886
4887dongle_rom_out:
4888 return err;
4889}
4890
4891static s32
4892brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4893 s32 scan_unassoc_time, s32 scan_passive_time)
4894{
4895 s32 err = 0;
4896
4897 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4898 scan_assoc_time);
4899 if (err) {
4900 if (err == -EOPNOTSUPP)
4901 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4902 else
4903 brcmf_err("Scan assoc time error (%d)\n", err);
4904 goto dongle_scantime_out;
4905 }
4906 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4907 scan_unassoc_time);
4908 if (err) {
4909 if (err == -EOPNOTSUPP)
4910 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4911 else
4912 brcmf_err("Scan unassoc time error (%d)\n", err);
4913 goto dongle_scantime_out;
4914 }
4915
4916 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4917 scan_passive_time);
4918 if (err) {
4919 if (err == -EOPNOTSUPP)
4920 brcmf_dbg(INFO, "Scan passive time is not supported\n");
4921 else
4922 brcmf_err("Scan passive time error (%d)\n", err);
4923 goto dongle_scantime_out;
4924 }
4925
4926dongle_scantime_out:
4927 return err;
4928}
4929
4930static s32 wl_update_wiphybands(struct brcmf_cfg80211_info *cfg)
4931{
4932 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4933 struct wiphy *wiphy;
4934 s32 phy_list;
4935 s8 phy;
4936 s32 err = 0;
4937
4938 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_PHYLIST,
4939 &phy_list, sizeof(phy_list));
4940 if (err) {
4941 brcmf_err("error (%d)\n", err);
4942 return err;
4943 }
4944
4945 phy = ((char *)&phy_list)[0];
4946 brcmf_dbg(INFO, "%c phy\n", phy);
4947 if (phy == 'n' || phy == 'a') {
4948 wiphy = cfg_to_wiphy(cfg);
4949 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
4950 }
4951
4952 return err;
4953}
4954
4955static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
4956{
4957 return wl_update_wiphybands(cfg);
4958}
4959
4960static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
4961{
4962 struct net_device *ndev;
4963 struct wireless_dev *wdev;
4964 struct brcmf_if *ifp;
4965 s32 power_mode;
4966 s32 err = 0;
4967
4968 if (cfg->dongle_up)
4969 return err;
4970
4971 ndev = cfg_to_ndev(cfg);
4972 wdev = ndev->ieee80211_ptr;
4973 ifp = netdev_priv(ndev);
4974
4975 /* make sure RF is ready for work */
4976 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
4977
4978 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
4979 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
4980
4981 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
4982 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
4983 if (err)
4984 goto default_conf_out;
4985 brcmf_dbg(INFO, "power save set to %s\n",
4986 (power_mode ? "enabled" : "disabled"));
4987
4988 err = brcmf_dongle_roam(ifp, (cfg->roam_on ? 0 : 1), WL_BEACON_TIMEOUT);
4989 if (err)
4990 goto default_conf_out;
4991 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
4992 NULL, NULL);
4993 if (err)
4994 goto default_conf_out;
4995 err = brcmf_dongle_probecap(cfg);
4996 if (err)
4997 goto default_conf_out;
4998
4999 cfg->dongle_up = true;
5000default_conf_out:
5001
5002 return err;
5003
5004}
5005
5006static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5007{
5008 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5009
5010 return brcmf_config_dongle(ifp->drvr->config);
5011}
5012
5013static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5014{
5015 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5016
5017 /*
5018 * While going down, if associated with AP disassociate
5019 * from AP to save power
5020 */
5021 if (check_vif_up(ifp->vif)) {
5022 brcmf_link_down(ifp->vif);
5023
5024 /* Make sure WPA_Supplicant receives all the event
5025 generated due to DISASSOC call to the fw to keep
5026 the state fw and WPA_Supplicant state consistent
5027 */
5028 brcmf_delay(500);
5029 }
5030
5031 brcmf_abort_scanning(cfg);
5032 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5033
5034 return 0;
5035}
5036
5037s32 brcmf_cfg80211_up(struct net_device *ndev)
5038{
5039 struct brcmf_if *ifp = netdev_priv(ndev);
5040 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5041 s32 err = 0;
5042
5043 mutex_lock(&cfg->usr_sync);
5044 err = __brcmf_cfg80211_up(ifp);
5045 mutex_unlock(&cfg->usr_sync);
5046
5047 return err;
5048}
5049
5050s32 brcmf_cfg80211_down(struct net_device *ndev)
5051{
5052 struct brcmf_if *ifp = netdev_priv(ndev);
5053 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5054 s32 err = 0;
5055
5056 mutex_lock(&cfg->usr_sync);
5057 err = __brcmf_cfg80211_down(ifp);
5058 mutex_unlock(&cfg->usr_sync);
5059
5060 return err;
5061}
5062
5063u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state)
5064{
5065 struct brcmf_cfg80211_vif *vif;
5066 bool result = 0;
5067
5068 list_for_each_entry(vif, &cfg->vif_list, list) {
5069 if (test_bit(state, &vif->sme_state))
5070 result++;
5071 }
5072 return result;
5073}
5074
5075static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5076 u8 action)
5077{
5078 u8 evt_action;
5079
5080 mutex_lock(&event->vif_event_lock);
5081 evt_action = event->action;
5082 mutex_unlock(&event->vif_event_lock);
5083 return evt_action == action;
5084}
5085
5086void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5087 struct brcmf_cfg80211_vif *vif)
5088{
5089 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5090
5091 mutex_lock(&event->vif_event_lock);
5092 event->vif = vif;
5093 event->action = 0;
5094 mutex_unlock(&event->vif_event_lock);
5095}
5096
5097bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5098{
5099 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5100 bool armed;
5101
5102 mutex_lock(&event->vif_event_lock);
5103 armed = event->vif != NULL;
5104 mutex_unlock(&event->vif_event_lock);
5105
5106 return armed;
5107}
5108int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5109 u8 action, ulong timeout)
5110{
5111 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5112
5113 return wait_event_timeout(event->vif_wq,
5114 vif_event_equals(event, action), timeout);
5115}
5116
Linux kernel - Deliverables
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