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brcmfmac: add p2p change vif routines.
[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
53#define VS_IE_FIXED_HDR_LEN 6
54#define WPA_IE_VERSION_LEN 2
55#define WPA_IE_MIN_OUI_LEN 4
56#define WPA_IE_SUITE_COUNT_LEN 2
57
58#define WPA_CIPHER_NONE 0 /* None */
59#define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
60#define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
61#define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
62#define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
63
64#define RSN_AKM_NONE 0 /* None (IBSS) */
65#define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
66#define RSN_AKM_PSK 2 /* Pre-shared Key */
67#define RSN_CAP_LEN 2 /* Length of RSN capabilities */
68#define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
69
70#define VNDR_IE_CMD_LEN 4 /* length of the set command
71 * string :"add", "del" (+ NUL)
72 */
73#define VNDR_IE_COUNT_OFFSET 4
74#define VNDR_IE_PKTFLAG_OFFSET 8
75#define VNDR_IE_VSIE_OFFSET 12
76#define VNDR_IE_HDR_SIZE 12
77#define VNDR_IE_PARSE_LIMIT 5
78
79#define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
80#define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
81
82#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
83 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
84
85static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
86{
87 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
88 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
89 vif->sme_state);
90 return false;
91 }
92 return true;
93}
94
95#define CHAN2G(_channel, _freq, _flags) { \
96 .band = IEEE80211_BAND_2GHZ, \
97 .center_freq = (_freq), \
98 .hw_value = (_channel), \
99 .flags = (_flags), \
100 .max_antenna_gain = 0, \
101 .max_power = 30, \
102}
103
104#define CHAN5G(_channel, _flags) { \
105 .band = IEEE80211_BAND_5GHZ, \
106 .center_freq = 5000 + (5 * (_channel)), \
107 .hw_value = (_channel), \
108 .flags = (_flags), \
109 .max_antenna_gain = 0, \
110 .max_power = 30, \
111}
112
113#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
114#define RATETAB_ENT(_rateid, _flags) \
115 { \
116 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
117 .hw_value = (_rateid), \
118 .flags = (_flags), \
119 }
120
121static struct ieee80211_rate __wl_rates[] = {
122 RATETAB_ENT(BRCM_RATE_1M, 0),
123 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
124 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
125 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
126 RATETAB_ENT(BRCM_RATE_6M, 0),
127 RATETAB_ENT(BRCM_RATE_9M, 0),
128 RATETAB_ENT(BRCM_RATE_12M, 0),
129 RATETAB_ENT(BRCM_RATE_18M, 0),
130 RATETAB_ENT(BRCM_RATE_24M, 0),
131 RATETAB_ENT(BRCM_RATE_36M, 0),
132 RATETAB_ENT(BRCM_RATE_48M, 0),
133 RATETAB_ENT(BRCM_RATE_54M, 0),
134};
135
136#define wl_a_rates (__wl_rates + 4)
137#define wl_a_rates_size 8
138#define wl_g_rates (__wl_rates + 0)
139#define wl_g_rates_size 12
140
141static struct ieee80211_channel __wl_2ghz_channels[] = {
142 CHAN2G(1, 2412, 0),
143 CHAN2G(2, 2417, 0),
144 CHAN2G(3, 2422, 0),
145 CHAN2G(4, 2427, 0),
146 CHAN2G(5, 2432, 0),
147 CHAN2G(6, 2437, 0),
148 CHAN2G(7, 2442, 0),
149 CHAN2G(8, 2447, 0),
150 CHAN2G(9, 2452, 0),
151 CHAN2G(10, 2457, 0),
152 CHAN2G(11, 2462, 0),
153 CHAN2G(12, 2467, 0),
154 CHAN2G(13, 2472, 0),
155 CHAN2G(14, 2484, 0),
156};
157
158static struct ieee80211_channel __wl_5ghz_a_channels[] = {
159 CHAN5G(34, 0), CHAN5G(36, 0),
160 CHAN5G(38, 0), CHAN5G(40, 0),
161 CHAN5G(42, 0), CHAN5G(44, 0),
162 CHAN5G(46, 0), CHAN5G(48, 0),
163 CHAN5G(52, 0), CHAN5G(56, 0),
164 CHAN5G(60, 0), CHAN5G(64, 0),
165 CHAN5G(100, 0), CHAN5G(104, 0),
166 CHAN5G(108, 0), CHAN5G(112, 0),
167 CHAN5G(116, 0), CHAN5G(120, 0),
168 CHAN5G(124, 0), CHAN5G(128, 0),
169 CHAN5G(132, 0), CHAN5G(136, 0),
170 CHAN5G(140, 0), CHAN5G(149, 0),
171 CHAN5G(153, 0), CHAN5G(157, 0),
172 CHAN5G(161, 0), CHAN5G(165, 0),
173 CHAN5G(184, 0), CHAN5G(188, 0),
174 CHAN5G(192, 0), CHAN5G(196, 0),
175 CHAN5G(200, 0), CHAN5G(204, 0),
176 CHAN5G(208, 0), CHAN5G(212, 0),
177 CHAN5G(216, 0),
178};
179
180static struct ieee80211_channel __wl_5ghz_n_channels[] = {
181 CHAN5G(32, 0), CHAN5G(34, 0),
182 CHAN5G(36, 0), CHAN5G(38, 0),
183 CHAN5G(40, 0), CHAN5G(42, 0),
184 CHAN5G(44, 0), CHAN5G(46, 0),
185 CHAN5G(48, 0), CHAN5G(50, 0),
186 CHAN5G(52, 0), CHAN5G(54, 0),
187 CHAN5G(56, 0), CHAN5G(58, 0),
188 CHAN5G(60, 0), CHAN5G(62, 0),
189 CHAN5G(64, 0), CHAN5G(66, 0),
190 CHAN5G(68, 0), CHAN5G(70, 0),
191 CHAN5G(72, 0), CHAN5G(74, 0),
192 CHAN5G(76, 0), CHAN5G(78, 0),
193 CHAN5G(80, 0), CHAN5G(82, 0),
194 CHAN5G(84, 0), CHAN5G(86, 0),
195 CHAN5G(88, 0), CHAN5G(90, 0),
196 CHAN5G(92, 0), CHAN5G(94, 0),
197 CHAN5G(96, 0), CHAN5G(98, 0),
198 CHAN5G(100, 0), CHAN5G(102, 0),
199 CHAN5G(104, 0), CHAN5G(106, 0),
200 CHAN5G(108, 0), CHAN5G(110, 0),
201 CHAN5G(112, 0), CHAN5G(114, 0),
202 CHAN5G(116, 0), CHAN5G(118, 0),
203 CHAN5G(120, 0), CHAN5G(122, 0),
204 CHAN5G(124, 0), CHAN5G(126, 0),
205 CHAN5G(128, 0), CHAN5G(130, 0),
206 CHAN5G(132, 0), CHAN5G(134, 0),
207 CHAN5G(136, 0), CHAN5G(138, 0),
208 CHAN5G(140, 0), CHAN5G(142, 0),
209 CHAN5G(144, 0), CHAN5G(145, 0),
210 CHAN5G(146, 0), CHAN5G(147, 0),
211 CHAN5G(148, 0), CHAN5G(149, 0),
212 CHAN5G(150, 0), CHAN5G(151, 0),
213 CHAN5G(152, 0), CHAN5G(153, 0),
214 CHAN5G(154, 0), CHAN5G(155, 0),
215 CHAN5G(156, 0), CHAN5G(157, 0),
216 CHAN5G(158, 0), CHAN5G(159, 0),
217 CHAN5G(160, 0), CHAN5G(161, 0),
218 CHAN5G(162, 0), CHAN5G(163, 0),
219 CHAN5G(164, 0), CHAN5G(165, 0),
220 CHAN5G(166, 0), CHAN5G(168, 0),
221 CHAN5G(170, 0), CHAN5G(172, 0),
222 CHAN5G(174, 0), CHAN5G(176, 0),
223 CHAN5G(178, 0), CHAN5G(180, 0),
224 CHAN5G(182, 0), CHAN5G(184, 0),
225 CHAN5G(186, 0), CHAN5G(188, 0),
226 CHAN5G(190, 0), CHAN5G(192, 0),
227 CHAN5G(194, 0), CHAN5G(196, 0),
228 CHAN5G(198, 0), CHAN5G(200, 0),
229 CHAN5G(202, 0), CHAN5G(204, 0),
230 CHAN5G(206, 0), CHAN5G(208, 0),
231 CHAN5G(210, 0), CHAN5G(212, 0),
232 CHAN5G(214, 0), CHAN5G(216, 0),
233 CHAN5G(218, 0), CHAN5G(220, 0),
234 CHAN5G(222, 0), CHAN5G(224, 0),
235 CHAN5G(226, 0), CHAN5G(228, 0),
236};
237
238static struct ieee80211_supported_band __wl_band_2ghz = {
239 .band = IEEE80211_BAND_2GHZ,
240 .channels = __wl_2ghz_channels,
241 .n_channels = ARRAY_SIZE(__wl_2ghz_channels),
242 .bitrates = wl_g_rates,
243 .n_bitrates = wl_g_rates_size,
244};
245
246static struct ieee80211_supported_band __wl_band_5ghz_a = {
247 .band = IEEE80211_BAND_5GHZ,
248 .channels = __wl_5ghz_a_channels,
249 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels),
250 .bitrates = wl_a_rates,
251 .n_bitrates = wl_a_rates_size,
252};
253
254static struct ieee80211_supported_band __wl_band_5ghz_n = {
255 .band = IEEE80211_BAND_5GHZ,
256 .channels = __wl_5ghz_n_channels,
257 .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels),
258 .bitrates = wl_a_rates,
259 .n_bitrates = wl_a_rates_size,
260};
261
262static const u32 __wl_cipher_suites[] = {
263 WLAN_CIPHER_SUITE_WEP40,
264 WLAN_CIPHER_SUITE_WEP104,
265 WLAN_CIPHER_SUITE_TKIP,
266 WLAN_CIPHER_SUITE_CCMP,
267 WLAN_CIPHER_SUITE_AES_CMAC,
268};
269
270/* Vendor specific ie. id = 221, oui and type defines exact ie */
271struct brcmf_vs_tlv {
272 u8 id;
273 u8 len;
274 u8 oui[3];
275 u8 oui_type;
276};
277
278struct parsed_vndr_ie_info {
279 u8 *ie_ptr;
280 u32 ie_len; /* total length including id & length field */
281 struct brcmf_vs_tlv vndrie;
282};
283
284struct parsed_vndr_ies {
285 u32 count;
286 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
287};
288
289/* Quarter dBm units to mW
290 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
291 * Table is offset so the last entry is largest mW value that fits in
292 * a u16.
293 */
294
295#define QDBM_OFFSET 153 /* Offset for first entry */
296#define QDBM_TABLE_LEN 40 /* Table size */
297
298/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
299 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
300 */
301#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
302
303/* Largest mW value that will round down to the last table entry,
304 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
305 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
306 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
307 */
308#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
309
310static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
311/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
312/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
313/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
314/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
315/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
316/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
317};
318
319static u16 brcmf_qdbm_to_mw(u8 qdbm)
320{
321 uint factor = 1;
322 int idx = qdbm - QDBM_OFFSET;
323
324 if (idx >= QDBM_TABLE_LEN)
325 /* clamp to max u16 mW value */
326 return 0xFFFF;
327
328 /* scale the qdBm index up to the range of the table 0-40
329 * where an offset of 40 qdBm equals a factor of 10 mW.
330 */
331 while (idx < 0) {
332 idx += 40;
333 factor *= 10;
334 }
335
336 /* return the mW value scaled down to the correct factor of 10,
337 * adding in factor/2 to get proper rounding.
338 */
339 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
340}
341
342static u8 brcmf_mw_to_qdbm(u16 mw)
343{
344 u8 qdbm;
345 int offset;
346 uint mw_uint = mw;
347 uint boundary;
348
349 /* handle boundary case */
350 if (mw_uint <= 1)
351 return 0;
352
353 offset = QDBM_OFFSET;
354
355 /* move mw into the range of the table */
356 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
357 mw_uint *= 10;
358 offset -= 40;
359 }
360
361 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
362 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
363 nqdBm_to_mW_map[qdbm]) / 2;
364 if (mw_uint < boundary)
365 break;
366 }
367
368 qdbm += (u8) offset;
369
370 return qdbm;
371}
372
373u16 channel_to_chanspec(struct ieee80211_channel *ch)
374{
375 u16 chanspec;
376
377 chanspec = ieee80211_frequency_to_channel(ch->center_freq);
378 chanspec &= WL_CHANSPEC_CHAN_MASK;
379
380 if (ch->band == IEEE80211_BAND_2GHZ)
381 chanspec |= WL_CHANSPEC_BAND_2G;
382 else
383 chanspec |= WL_CHANSPEC_BAND_5G;
384
385 chanspec |= WL_CHANSPEC_BW_20;
386 chanspec |= WL_CHANSPEC_CTL_SB_NONE;
387
388 return chanspec;
389}
390
391static void convert_key_from_CPU(struct brcmf_wsec_key *key,
392 struct brcmf_wsec_key_le *key_le)
393{
394 key_le->index = cpu_to_le32(key->index);
395 key_le->len = cpu_to_le32(key->len);
396 key_le->algo = cpu_to_le32(key->algo);
397 key_le->flags = cpu_to_le32(key->flags);
398 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
399 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
400 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
401 memcpy(key_le->data, key->data, sizeof(key->data));
402 memcpy(key_le->ea, key->ea, sizeof(key->ea));
403}
404
405static int
406send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
407{
408 int err;
409 struct brcmf_wsec_key_le key_le;
410
411 convert_key_from_CPU(key, &key_le);
412
413 brcmf_netdev_wait_pend8021x(ndev);
414
415 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
416 sizeof(key_le));
417
418 if (err)
419 brcmf_err("wsec_key error (%d)\n", err);
420 return err;
421}
422
423static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
424 const char *name,
425 enum nl80211_iftype type,
426 u32 *flags,
427 struct vif_params *params)
428{
429 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
430 switch (type) {
431 case NL80211_IFTYPE_ADHOC:
432 case NL80211_IFTYPE_STATION:
433 case NL80211_IFTYPE_AP:
434 case NL80211_IFTYPE_AP_VLAN:
435 case NL80211_IFTYPE_WDS:
436 case NL80211_IFTYPE_MONITOR:
437 case NL80211_IFTYPE_MESH_POINT:
438 return ERR_PTR(-EOPNOTSUPP);
439 case NL80211_IFTYPE_P2P_CLIENT:
440 case NL80211_IFTYPE_P2P_GO:
441 return brcmf_p2p_add_vif(wiphy, name, type, flags, params);
442 case NL80211_IFTYPE_UNSPECIFIED:
443 case NL80211_IFTYPE_P2P_DEVICE:
444 default:
445 return ERR_PTR(-EINVAL);
446 }
447}
448
449void brcmf_set_mpc(struct net_device *ndev, int mpc)
450{
451 struct brcmf_if *ifp = netdev_priv(ndev);
452 s32 err = 0;
453
454 if (check_vif_up(ifp->vif)) {
455 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
456 if (err) {
457 brcmf_err("fail to set mpc\n");
458 return;
459 }
460 brcmf_dbg(INFO, "MPC : %d\n", mpc);
461 }
462}
463
464s32
465brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
466 struct net_device *ndev,
467 bool aborted, bool fw_abort)
468{
469 struct brcmf_scan_params_le params_le;
470 struct cfg80211_scan_request *scan_request;
471 s32 err = 0;
472
473 brcmf_dbg(SCAN, "Enter\n");
474
475 /* clear scan request, because the FW abort can cause a second call */
476 /* to this functon and might cause a double cfg80211_scan_done */
477 scan_request = cfg->scan_request;
478 cfg->scan_request = NULL;
479
480 if (timer_pending(&cfg->escan_timeout))
481 del_timer_sync(&cfg->escan_timeout);
482
483 if (fw_abort) {
484 /* Do a scan abort to stop the driver's scan engine */
485 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
486 memset(&params_le, 0, sizeof(params_le));
487 memset(params_le.bssid, 0xFF, ETH_ALEN);
488 params_le.bss_type = DOT11_BSSTYPE_ANY;
489 params_le.scan_type = 0;
490 params_le.channel_num = cpu_to_le32(1);
491 params_le.nprobes = cpu_to_le32(1);
492 params_le.active_time = cpu_to_le32(-1);
493 params_le.passive_time = cpu_to_le32(-1);
494 params_le.home_time = cpu_to_le32(-1);
495 /* Scan is aborted by setting channel_list[0] to -1 */
496 params_le.channel_list[0] = cpu_to_le16(-1);
497 /* E-Scan (or anyother type) can be aborted by SCAN */
498 err = brcmf_fil_cmd_data_set(netdev_priv(ndev), BRCMF_C_SCAN,
499 &params_le, sizeof(params_le));
500 if (err)
501 brcmf_err("Scan abort failed\n");
502 }
503 /*
504 * e-scan can be initiated by scheduled scan
505 * which takes precedence.
506 */
507 if (cfg->sched_escan) {
508 brcmf_dbg(SCAN, "scheduled scan completed\n");
509 cfg->sched_escan = false;
510 if (!aborted)
511 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
512 brcmf_set_mpc(ndev, 1);
513 } else if (scan_request) {
514 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
515 aborted ? "Aborted" : "Done");
516 cfg80211_scan_done(scan_request, aborted);
517 brcmf_set_mpc(ndev, 1);
518 }
519 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
520 brcmf_err("Scan complete while device not scanning\n");
521 return -EPERM;
522 }
523
524 return err;
525}
526
527static
528int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
529{
530 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
531 struct net_device *ndev = wdev->netdev;
532
533 /* vif event pending in firmware */
534 if (brcmf_cfg80211_vif_event_armed(cfg))
535 return -EBUSY;
536
537 if (ndev) {
538 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
539 cfg->escan_info.ndev == ndev)
540 brcmf_notify_escan_complete(cfg, ndev, true,
541 true);
542
543 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
544 }
545
546 switch (wdev->iftype) {
547 case NL80211_IFTYPE_ADHOC:
548 case NL80211_IFTYPE_STATION:
549 case NL80211_IFTYPE_AP:
550 case NL80211_IFTYPE_AP_VLAN:
551 case NL80211_IFTYPE_WDS:
552 case NL80211_IFTYPE_MONITOR:
553 case NL80211_IFTYPE_MESH_POINT:
554 return -EOPNOTSUPP;
555 case NL80211_IFTYPE_P2P_CLIENT:
556 case NL80211_IFTYPE_P2P_GO:
557 return brcmf_p2p_del_vif(wiphy, wdev);
558 case NL80211_IFTYPE_UNSPECIFIED:
559 case NL80211_IFTYPE_P2P_DEVICE:
560 default:
561 return -EINVAL;
562 }
563 return -EOPNOTSUPP;
564}
565
566static s32
567brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
568 enum nl80211_iftype type, u32 *flags,
569 struct vif_params *params)
570{
571 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
572 struct brcmf_if *ifp = netdev_priv(ndev);
573 struct brcmf_cfg80211_vif *vif = ifp->vif;
574 s32 infra = 0;
575 s32 ap = 0;
576 s32 err = 0;
577
578 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
579
580 switch (type) {
581 case NL80211_IFTYPE_MONITOR:
582 case NL80211_IFTYPE_WDS:
583 brcmf_err("type (%d) : currently we do not support this type\n",
584 type);
585 return -EOPNOTSUPP;
586 case NL80211_IFTYPE_ADHOC:
587 vif->mode = WL_MODE_IBSS;
588 infra = 0;
589 break;
590 case NL80211_IFTYPE_STATION:
591 vif->mode = WL_MODE_BSS;
592 infra = 1;
593 break;
594 case NL80211_IFTYPE_AP:
595 case NL80211_IFTYPE_P2P_GO:
596 vif->mode = WL_MODE_AP;
597 ap = 1;
598 break;
599 default:
600 err = -EINVAL;
601 goto done;
602 }
603
604 if (ap) {
605 if (type == NL80211_IFTYPE_P2P_GO) {
606 brcmf_dbg(INFO, "IF Type = P2P GO\n");
607 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
608 }
609 if (!err) {
610 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
611 brcmf_dbg(INFO, "IF Type = AP\n");
612 }
613 } else {
614 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
615 if (err) {
616 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
617 err = -EAGAIN;
618 goto done;
619 }
620 brcmf_dbg(INFO, "IF Type = %s\n", (vif->mode == WL_MODE_IBSS) ?
621 "Adhoc" : "Infra");
622 }
623 ndev->ieee80211_ptr->iftype = type;
624
625done:
626 brcmf_dbg(TRACE, "Exit\n");
627
628 return err;
629}
630
631static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
632 struct cfg80211_scan_request *request)
633{
634 u32 n_ssids;
635 u32 n_channels;
636 s32 i;
637 s32 offset;
638 u16 chanspec;
639 char *ptr;
640 struct brcmf_ssid_le ssid_le;
641
642 memset(params_le->bssid, 0xFF, ETH_ALEN);
643 params_le->bss_type = DOT11_BSSTYPE_ANY;
644 params_le->scan_type = 0;
645 params_le->channel_num = 0;
646 params_le->nprobes = cpu_to_le32(-1);
647 params_le->active_time = cpu_to_le32(-1);
648 params_le->passive_time = cpu_to_le32(-1);
649 params_le->home_time = cpu_to_le32(-1);
650 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
651
652 /* if request is null exit so it will be all channel broadcast scan */
653 if (!request)
654 return;
655
656 n_ssids = request->n_ssids;
657 n_channels = request->n_channels;
658 /* Copy channel array if applicable */
659 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
660 n_channels);
661 if (n_channels > 0) {
662 for (i = 0; i < n_channels; i++) {
663 chanspec = channel_to_chanspec(request->channels[i]);
664 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
665 request->channels[i]->hw_value, chanspec);
666 params_le->channel_list[i] = cpu_to_le16(chanspec);
667 }
668 } else {
669 brcmf_dbg(SCAN, "Scanning all channels\n");
670 }
671 /* Copy ssid array if applicable */
672 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
673 if (n_ssids > 0) {
674 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
675 n_channels * sizeof(u16);
676 offset = roundup(offset, sizeof(u32));
677 ptr = (char *)params_le + offset;
678 for (i = 0; i < n_ssids; i++) {
679 memset(&ssid_le, 0, sizeof(ssid_le));
680 ssid_le.SSID_len =
681 cpu_to_le32(request->ssids[i].ssid_len);
682 memcpy(ssid_le.SSID, request->ssids[i].ssid,
683 request->ssids[i].ssid_len);
684 if (!ssid_le.SSID_len)
685 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
686 else
687 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
688 i, ssid_le.SSID, ssid_le.SSID_len);
689 memcpy(ptr, &ssid_le, sizeof(ssid_le));
690 ptr += sizeof(ssid_le);
691 }
692 } else {
693 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
694 if ((request->ssids) && request->ssids->ssid_len) {
695 brcmf_dbg(SCAN, "SSID %s len=%d\n",
696 params_le->ssid_le.SSID,
697 request->ssids->ssid_len);
698 params_le->ssid_le.SSID_len =
699 cpu_to_le32(request->ssids->ssid_len);
700 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
701 request->ssids->ssid_len);
702 }
703 }
704 /* Adding mask to channel numbers */
705 params_le->channel_num =
706 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
707 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
708}
709
710static s32
711brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
712 struct cfg80211_scan_request *request, u16 action)
713{
714 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
715 offsetof(struct brcmf_escan_params_le, params_le);
716 struct brcmf_escan_params_le *params;
717 s32 err = 0;
718
719 brcmf_dbg(SCAN, "E-SCAN START\n");
720
721 if (request != NULL) {
722 /* Allocate space for populating ssids in struct */
723 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
724
725 /* Allocate space for populating ssids in struct */
726 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
727 }
728
729 params = kzalloc(params_size, GFP_KERNEL);
730 if (!params) {
731 err = -ENOMEM;
732 goto exit;
733 }
734 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
735 brcmf_escan_prep(&params->params_le, request);
736 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
737 params->action = cpu_to_le16(action);
738 params->sync_id = cpu_to_le16(0x1234);
739
740 err = brcmf_fil_iovar_data_set(netdev_priv(ndev), "escan",
741 params, params_size);
742 if (err) {
743 if (err == -EBUSY)
744 brcmf_dbg(INFO, "system busy : escan canceled\n");
745 else
746 brcmf_err("error (%d)\n", err);
747 }
748
749 kfree(params);
750exit:
751 return err;
752}
753
754static s32
755brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
756 struct net_device *ndev, struct cfg80211_scan_request *request)
757{
758 s32 err;
759 u32 passive_scan;
760 struct brcmf_scan_results *results;
761 struct escan_info *escan = &cfg->escan_info;
762
763 brcmf_dbg(SCAN, "Enter\n");
764 escan->ndev = ndev;
765 escan->wiphy = wiphy;
766 escan->escan_state = WL_ESCAN_STATE_SCANNING;
767 passive_scan = cfg->active_scan ? 0 : 1;
768 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PASSIVE_SCAN,
769 passive_scan);
770 if (err) {
771 brcmf_err("error (%d)\n", err);
772 return err;
773 }
774 brcmf_set_mpc(ndev, 0);
775 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
776 results->version = 0;
777 results->count = 0;
778 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
779
780 err = escan->run(cfg, ndev, request, WL_ESCAN_ACTION_START);
781 if (err)
782 brcmf_set_mpc(ndev, 1);
783 return err;
784}
785
786static s32
787brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
788 struct cfg80211_scan_request *request,
789 struct cfg80211_ssid *this_ssid)
790{
791 struct brcmf_if *ifp = netdev_priv(ndev);
792 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
793 struct cfg80211_ssid *ssids;
794 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
795 u32 passive_scan;
796 bool escan_req;
797 bool spec_scan;
798 s32 err;
799 u32 SSID_len;
800
801 brcmf_dbg(SCAN, "START ESCAN\n");
802
803 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
804 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
805 return -EAGAIN;
806 }
807 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
808 brcmf_err("Scanning being aborted: status (%lu)\n",
809 cfg->scan_status);
810 return -EAGAIN;
811 }
812 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
813 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
814 return -EAGAIN;
815 }
816
817 /* If scan req comes for p2p0, send it over primary I/F */
818 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) {
819 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
820 ndev = ifp->ndev;
821 }
822
823 /* Arm scan timeout timer */
824 mod_timer(&cfg->escan_timeout, jiffies +
825 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
826
827 escan_req = false;
828 if (request) {
829 /* scan bss */
830 ssids = request->ssids;
831 escan_req = true;
832 } else {
833 /* scan in ibss */
834 /* we don't do escan in ibss */
835 ssids = this_ssid;
836 }
837
838 cfg->scan_request = request;
839 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
840 if (escan_req) {
841 cfg->escan_info.run = brcmf_run_escan;
842 err = brcmf_p2p_scan_prep(wiphy, request, ifp->vif);
843 if (err)
844 goto scan_out;
845
846 err = brcmf_do_escan(cfg, wiphy, ndev, request);
847 if (err)
848 goto scan_out;
849 } else {
850 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
851 ssids->ssid, ssids->ssid_len);
852 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
853 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
854 sr->ssid_le.SSID_len = cpu_to_le32(0);
855 spec_scan = false;
856 if (SSID_len) {
857 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
858 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
859 spec_scan = true;
860 } else
861 brcmf_dbg(SCAN, "Broadcast scan\n");
862
863 passive_scan = cfg->active_scan ? 0 : 1;
864 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
865 passive_scan);
866 if (err) {
867 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
868 goto scan_out;
869 }
870 brcmf_set_mpc(ndev, 0);
871 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
872 &sr->ssid_le, sizeof(sr->ssid_le));
873 if (err) {
874 if (err == -EBUSY)
875 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
876 sr->ssid_le.SSID);
877 else
878 brcmf_err("WLC_SCAN error (%d)\n", err);
879
880 brcmf_set_mpc(ndev, 1);
881 goto scan_out;
882 }
883 }
884
885 return 0;
886
887scan_out:
888 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
889 if (timer_pending(&cfg->escan_timeout))
890 del_timer_sync(&cfg->escan_timeout);
891 cfg->scan_request = NULL;
892 return err;
893}
894
895static s32
896brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
897{
898 struct net_device *ndev = request->wdev->netdev;
899 s32 err = 0;
900
901 brcmf_dbg(TRACE, "Enter\n");
902
903 if (!check_vif_up(container_of(request->wdev,
904 struct brcmf_cfg80211_vif, wdev)))
905 return -EIO;
906
907 err = brcmf_cfg80211_escan(wiphy, ndev, request, NULL);
908
909 if (err)
910 brcmf_err("scan error (%d)\n", err);
911
912 brcmf_dbg(TRACE, "Exit\n");
913 return err;
914}
915
916static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
917{
918 s32 err = 0;
919
920 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
921 rts_threshold);
922 if (err)
923 brcmf_err("Error (%d)\n", err);
924
925 return err;
926}
927
928static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
929{
930 s32 err = 0;
931
932 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
933 frag_threshold);
934 if (err)
935 brcmf_err("Error (%d)\n", err);
936
937 return err;
938}
939
940static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
941{
942 s32 err = 0;
943 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
944
945 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
946 if (err) {
947 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
948 return err;
949 }
950 return err;
951}
952
953static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
954{
955 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
956 struct net_device *ndev = cfg_to_ndev(cfg);
957 struct brcmf_if *ifp = netdev_priv(ndev);
958 s32 err = 0;
959
960 brcmf_dbg(TRACE, "Enter\n");
961 if (!check_vif_up(ifp->vif))
962 return -EIO;
963
964 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
965 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
966 cfg->conf->rts_threshold = wiphy->rts_threshold;
967 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
968 if (!err)
969 goto done;
970 }
971 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
972 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
973 cfg->conf->frag_threshold = wiphy->frag_threshold;
974 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
975 if (!err)
976 goto done;
977 }
978 if (changed & WIPHY_PARAM_RETRY_LONG
979 && (cfg->conf->retry_long != wiphy->retry_long)) {
980 cfg->conf->retry_long = wiphy->retry_long;
981 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
982 if (!err)
983 goto done;
984 }
985 if (changed & WIPHY_PARAM_RETRY_SHORT
986 && (cfg->conf->retry_short != wiphy->retry_short)) {
987 cfg->conf->retry_short = wiphy->retry_short;
988 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
989 if (!err)
990 goto done;
991 }
992
993done:
994 brcmf_dbg(TRACE, "Exit\n");
995 return err;
996}
997
998static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
999{
1000 memset(prof, 0, sizeof(*prof));
1001}
1002
1003static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1004{
1005 s32 err = 0;
1006
1007 brcmf_dbg(TRACE, "Enter\n");
1008
1009 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1010 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1011 err = brcmf_fil_cmd_data_set(vif->ifp,
1012 BRCMF_C_DISASSOC, NULL, 0);
1013 if (err)
1014 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1015 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1016 }
1017 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1018 brcmf_dbg(TRACE, "Exit\n");
1019}
1020
1021static s32
1022brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1023 struct cfg80211_ibss_params *params)
1024{
1025 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1026 struct brcmf_if *ifp = netdev_priv(ndev);
1027 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1028 struct brcmf_join_params join_params;
1029 size_t join_params_size = 0;
1030 s32 err = 0;
1031 s32 wsec = 0;
1032 s32 bcnprd;
1033 u16 chanspec;
1034
1035 brcmf_dbg(TRACE, "Enter\n");
1036 if (!check_vif_up(ifp->vif))
1037 return -EIO;
1038
1039 if (params->ssid)
1040 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1041 else {
1042 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1043 return -EOPNOTSUPP;
1044 }
1045
1046 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1047
1048 if (params->bssid)
1049 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1050 else
1051 brcmf_dbg(CONN, "No BSSID specified\n");
1052
1053 if (params->chandef.chan)
1054 brcmf_dbg(CONN, "channel: %d\n",
1055 params->chandef.chan->center_freq);
1056 else
1057 brcmf_dbg(CONN, "no channel specified\n");
1058
1059 if (params->channel_fixed)
1060 brcmf_dbg(CONN, "fixed channel required\n");
1061 else
1062 brcmf_dbg(CONN, "no fixed channel required\n");
1063
1064 if (params->ie && params->ie_len)
1065 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1066 else
1067 brcmf_dbg(CONN, "no ie specified\n");
1068
1069 if (params->beacon_interval)
1070 brcmf_dbg(CONN, "beacon interval: %d\n",
1071 params->beacon_interval);
1072 else
1073 brcmf_dbg(CONN, "no beacon interval specified\n");
1074
1075 if (params->basic_rates)
1076 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1077 else
1078 brcmf_dbg(CONN, "no basic rates specified\n");
1079
1080 if (params->privacy)
1081 brcmf_dbg(CONN, "privacy required\n");
1082 else
1083 brcmf_dbg(CONN, "no privacy required\n");
1084
1085 /* Configure Privacy for starter */
1086 if (params->privacy)
1087 wsec |= WEP_ENABLED;
1088
1089 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1090 if (err) {
1091 brcmf_err("wsec failed (%d)\n", err);
1092 goto done;
1093 }
1094
1095 /* Configure Beacon Interval for starter */
1096 if (params->beacon_interval)
1097 bcnprd = params->beacon_interval;
1098 else
1099 bcnprd = 100;
1100
1101 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1102 if (err) {
1103 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1104 goto done;
1105 }
1106
1107 /* Configure required join parameter */
1108 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1109
1110 /* SSID */
1111 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1112 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1113 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1114 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1115 join_params_size = sizeof(join_params.ssid_le);
1116
1117 /* BSSID */
1118 if (params->bssid) {
1119 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1120 join_params_size = sizeof(join_params.ssid_le) +
1121 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1122 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1123 } else {
1124 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1125 memset(profile->bssid, 0, ETH_ALEN);
1126 }
1127
1128 /* Channel */
1129 if (params->chandef.chan) {
1130 u32 target_channel;
1131
1132 cfg->channel =
1133 ieee80211_frequency_to_channel(
1134 params->chandef.chan->center_freq);
1135 if (params->channel_fixed) {
1136 /* adding chanspec */
1137 chanspec = channel_to_chanspec(params->chandef.chan);
1138 join_params.params_le.chanspec_list[0] =
1139 cpu_to_le16(chanspec);
1140 join_params.params_le.chanspec_num = cpu_to_le32(1);
1141 join_params_size += sizeof(join_params.params_le);
1142 }
1143
1144 /* set channel for starter */
1145 target_channel = cfg->channel;
1146 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1147 target_channel);
1148 if (err) {
1149 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1150 goto done;
1151 }
1152 } else
1153 cfg->channel = 0;
1154
1155 cfg->ibss_starter = false;
1156
1157
1158 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1159 &join_params, join_params_size);
1160 if (err) {
1161 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1162 goto done;
1163 }
1164
1165done:
1166 if (err)
1167 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1168 brcmf_dbg(TRACE, "Exit\n");
1169 return err;
1170}
1171
1172static s32
1173brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1174{
1175 struct brcmf_if *ifp = netdev_priv(ndev);
1176 s32 err = 0;
1177
1178 brcmf_dbg(TRACE, "Enter\n");
1179 if (!check_vif_up(ifp->vif))
1180 return -EIO;
1181
1182 brcmf_link_down(ifp->vif);
1183
1184 brcmf_dbg(TRACE, "Exit\n");
1185
1186 return err;
1187}
1188
1189static s32 brcmf_set_wpa_version(struct net_device *ndev,
1190 struct cfg80211_connect_params *sme)
1191{
1192 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1193 struct brcmf_cfg80211_security *sec;
1194 s32 val = 0;
1195 s32 err = 0;
1196
1197 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1198 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1199 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1200 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1201 else
1202 val = WPA_AUTH_DISABLED;
1203 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1204 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "wpa_auth", val);
1205 if (err) {
1206 brcmf_err("set wpa_auth failed (%d)\n", err);
1207 return err;
1208 }
1209 sec = &profile->sec;
1210 sec->wpa_versions = sme->crypto.wpa_versions;
1211 return err;
1212}
1213
1214static s32 brcmf_set_auth_type(struct net_device *ndev,
1215 struct cfg80211_connect_params *sme)
1216{
1217 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1218 struct brcmf_cfg80211_security *sec;
1219 s32 val = 0;
1220 s32 err = 0;
1221
1222 switch (sme->auth_type) {
1223 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1224 val = 0;
1225 brcmf_dbg(CONN, "open system\n");
1226 break;
1227 case NL80211_AUTHTYPE_SHARED_KEY:
1228 val = 1;
1229 brcmf_dbg(CONN, "shared key\n");
1230 break;
1231 case NL80211_AUTHTYPE_AUTOMATIC:
1232 val = 2;
1233 brcmf_dbg(CONN, "automatic\n");
1234 break;
1235 case NL80211_AUTHTYPE_NETWORK_EAP:
1236 brcmf_dbg(CONN, "network eap\n");
1237 default:
1238 val = 2;
1239 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1240 break;
1241 }
1242
1243 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "auth", val);
1244 if (err) {
1245 brcmf_err("set auth failed (%d)\n", err);
1246 return err;
1247 }
1248 sec = &profile->sec;
1249 sec->auth_type = sme->auth_type;
1250 return err;
1251}
1252
1253static s32
1254brcmf_set_set_cipher(struct net_device *ndev,
1255 struct cfg80211_connect_params *sme)
1256{
1257 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1258 struct brcmf_cfg80211_security *sec;
1259 s32 pval = 0;
1260 s32 gval = 0;
1261 s32 err = 0;
1262
1263 if (sme->crypto.n_ciphers_pairwise) {
1264 switch (sme->crypto.ciphers_pairwise[0]) {
1265 case WLAN_CIPHER_SUITE_WEP40:
1266 case WLAN_CIPHER_SUITE_WEP104:
1267 pval = WEP_ENABLED;
1268 break;
1269 case WLAN_CIPHER_SUITE_TKIP:
1270 pval = TKIP_ENABLED;
1271 break;
1272 case WLAN_CIPHER_SUITE_CCMP:
1273 pval = AES_ENABLED;
1274 break;
1275 case WLAN_CIPHER_SUITE_AES_CMAC:
1276 pval = AES_ENABLED;
1277 break;
1278 default:
1279 brcmf_err("invalid cipher pairwise (%d)\n",
1280 sme->crypto.ciphers_pairwise[0]);
1281 return -EINVAL;
1282 }
1283 }
1284 if (sme->crypto.cipher_group) {
1285 switch (sme->crypto.cipher_group) {
1286 case WLAN_CIPHER_SUITE_WEP40:
1287 case WLAN_CIPHER_SUITE_WEP104:
1288 gval = WEP_ENABLED;
1289 break;
1290 case WLAN_CIPHER_SUITE_TKIP:
1291 gval = TKIP_ENABLED;
1292 break;
1293 case WLAN_CIPHER_SUITE_CCMP:
1294 gval = AES_ENABLED;
1295 break;
1296 case WLAN_CIPHER_SUITE_AES_CMAC:
1297 gval = AES_ENABLED;
1298 break;
1299 default:
1300 brcmf_err("invalid cipher group (%d)\n",
1301 sme->crypto.cipher_group);
1302 return -EINVAL;
1303 }
1304 }
1305
1306 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1307 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "wsec", pval | gval);
1308 if (err) {
1309 brcmf_err("error (%d)\n", err);
1310 return err;
1311 }
1312
1313 sec = &profile->sec;
1314 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1315 sec->cipher_group = sme->crypto.cipher_group;
1316
1317 return err;
1318}
1319
1320static s32
1321brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1322{
1323 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1324 struct brcmf_cfg80211_security *sec;
1325 s32 val = 0;
1326 s32 err = 0;
1327
1328 if (sme->crypto.n_akm_suites) {
1329 err = brcmf_fil_iovar_int_get(netdev_priv(ndev),
1330 "wpa_auth", &val);
1331 if (err) {
1332 brcmf_err("could not get wpa_auth (%d)\n", err);
1333 return err;
1334 }
1335 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1336 switch (sme->crypto.akm_suites[0]) {
1337 case WLAN_AKM_SUITE_8021X:
1338 val = WPA_AUTH_UNSPECIFIED;
1339 break;
1340 case WLAN_AKM_SUITE_PSK:
1341 val = WPA_AUTH_PSK;
1342 break;
1343 default:
1344 brcmf_err("invalid cipher group (%d)\n",
1345 sme->crypto.cipher_group);
1346 return -EINVAL;
1347 }
1348 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1349 switch (sme->crypto.akm_suites[0]) {
1350 case WLAN_AKM_SUITE_8021X:
1351 val = WPA2_AUTH_UNSPECIFIED;
1352 break;
1353 case WLAN_AKM_SUITE_PSK:
1354 val = WPA2_AUTH_PSK;
1355 break;
1356 default:
1357 brcmf_err("invalid cipher group (%d)\n",
1358 sme->crypto.cipher_group);
1359 return -EINVAL;
1360 }
1361 }
1362
1363 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1364 err = brcmf_fil_iovar_int_set(netdev_priv(ndev),
1365 "wpa_auth", val);
1366 if (err) {
1367 brcmf_err("could not set wpa_auth (%d)\n", err);
1368 return err;
1369 }
1370 }
1371 sec = &profile->sec;
1372 sec->wpa_auth = sme->crypto.akm_suites[0];
1373
1374 return err;
1375}
1376
1377static s32
1378brcmf_set_sharedkey(struct net_device *ndev,
1379 struct cfg80211_connect_params *sme)
1380{
1381 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1382 struct brcmf_cfg80211_security *sec;
1383 struct brcmf_wsec_key key;
1384 s32 val;
1385 s32 err = 0;
1386
1387 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1388
1389 if (sme->key_len == 0)
1390 return 0;
1391
1392 sec = &profile->sec;
1393 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1394 sec->wpa_versions, sec->cipher_pairwise);
1395
1396 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1397 return 0;
1398
1399 if (!(sec->cipher_pairwise &
1400 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1401 return 0;
1402
1403 memset(&key, 0, sizeof(key));
1404 key.len = (u32) sme->key_len;
1405 key.index = (u32) sme->key_idx;
1406 if (key.len > sizeof(key.data)) {
1407 brcmf_err("Too long key length (%u)\n", key.len);
1408 return -EINVAL;
1409 }
1410 memcpy(key.data, sme->key, key.len);
1411 key.flags = BRCMF_PRIMARY_KEY;
1412 switch (sec->cipher_pairwise) {
1413 case WLAN_CIPHER_SUITE_WEP40:
1414 key.algo = CRYPTO_ALGO_WEP1;
1415 break;
1416 case WLAN_CIPHER_SUITE_WEP104:
1417 key.algo = CRYPTO_ALGO_WEP128;
1418 break;
1419 default:
1420 brcmf_err("Invalid algorithm (%d)\n",
1421 sme->crypto.ciphers_pairwise[0]);
1422 return -EINVAL;
1423 }
1424 /* Set the new key/index */
1425 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1426 key.len, key.index, key.algo);
1427 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1428 err = send_key_to_dongle(ndev, &key);
1429 if (err)
1430 return err;
1431
1432 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1433 brcmf_dbg(CONN, "set auth_type to shared key\n");
1434 val = WL_AUTH_SHARED_KEY; /* shared key */
1435 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1436 if (err)
1437 brcmf_err("set auth failed (%d)\n", err);
1438 }
1439 return err;
1440}
1441
1442static
1443enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1444 enum nl80211_auth_type type)
1445{
1446 u32 ci;
1447 if (type == NL80211_AUTHTYPE_AUTOMATIC) {
1448 /* shift to ignore chip revision */
1449 ci = brcmf_get_chip_info(ifp) >> 4;
1450 switch (ci) {
1451 case 43236:
1452 brcmf_dbg(CONN, "43236 WAR: use OPEN instead of AUTO\n");
1453 return NL80211_AUTHTYPE_OPEN_SYSTEM;
1454 default:
1455 break;
1456 }
1457 }
1458 return type;
1459}
1460
1461static s32
1462brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1463 struct cfg80211_connect_params *sme)
1464{
1465 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1466 struct brcmf_if *ifp = netdev_priv(ndev);
1467 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1468 struct ieee80211_channel *chan = sme->channel;
1469 struct brcmf_join_params join_params;
1470 size_t join_params_size;
1471 struct brcmf_ssid ssid;
1472 u16 chanspec;
1473
1474 s32 err = 0;
1475
1476 brcmf_dbg(TRACE, "Enter\n");
1477 if (!check_vif_up(ifp->vif))
1478 return -EIO;
1479
1480 if (!sme->ssid) {
1481 brcmf_err("Invalid ssid\n");
1482 return -EOPNOTSUPP;
1483 }
1484
1485 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1486
1487 if (chan) {
1488 cfg->channel =
1489 ieee80211_frequency_to_channel(chan->center_freq);
1490 chanspec = channel_to_chanspec(chan);
1491 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1492 cfg->channel, chan->center_freq, chanspec);
1493 } else {
1494 cfg->channel = 0;
1495 chanspec = 0;
1496 }
1497
1498 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1499
1500 err = brcmf_set_wpa_version(ndev, sme);
1501 if (err) {
1502 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1503 goto done;
1504 }
1505
1506 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1507 err = brcmf_set_auth_type(ndev, sme);
1508 if (err) {
1509 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1510 goto done;
1511 }
1512
1513 err = brcmf_set_set_cipher(ndev, sme);
1514 if (err) {
1515 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1516 goto done;
1517 }
1518
1519 err = brcmf_set_key_mgmt(ndev, sme);
1520 if (err) {
1521 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1522 goto done;
1523 }
1524
1525 err = brcmf_set_sharedkey(ndev, sme);
1526 if (err) {
1527 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1528 goto done;
1529 }
1530
1531 memset(&join_params, 0, sizeof(join_params));
1532 join_params_size = sizeof(join_params.ssid_le);
1533
1534 profile->ssid.SSID_len = min_t(u32,
1535 sizeof(ssid.SSID), (u32)sme->ssid_len);
1536 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1537 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1538 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1539
1540 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1541
1542 if (ssid.SSID_len < IEEE80211_MAX_SSID_LEN)
1543 brcmf_dbg(CONN, "ssid \"%s\", len (%d)\n",
1544 ssid.SSID, ssid.SSID_len);
1545
1546 if (cfg->channel) {
1547 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1548 join_params.params_le.chanspec_num = cpu_to_le32(1);
1549 join_params_size += sizeof(join_params.params_le);
1550 }
1551 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1552 &join_params, join_params_size);
1553 if (err)
1554 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1555
1556done:
1557 if (err)
1558 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1559 brcmf_dbg(TRACE, "Exit\n");
1560 return err;
1561}
1562
1563static s32
1564brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1565 u16 reason_code)
1566{
1567 struct brcmf_if *ifp = netdev_priv(ndev);
1568 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1569 struct brcmf_scb_val_le scbval;
1570 s32 err = 0;
1571
1572 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1573 if (!check_vif_up(ifp->vif))
1574 return -EIO;
1575
1576 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1577
1578 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1579 scbval.val = cpu_to_le32(reason_code);
1580 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1581 &scbval, sizeof(scbval));
1582 if (err)
1583 brcmf_err("error (%d)\n", err);
1584
1585 brcmf_dbg(TRACE, "Exit\n");
1586 return err;
1587}
1588
1589static s32
1590brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1591 enum nl80211_tx_power_setting type, s32 mbm)
1592{
1593
1594 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1595 struct net_device *ndev = cfg_to_ndev(cfg);
1596 struct brcmf_if *ifp = netdev_priv(ndev);
1597 u16 txpwrmw;
1598 s32 err = 0;
1599 s32 disable = 0;
1600 s32 dbm = MBM_TO_DBM(mbm);
1601
1602 brcmf_dbg(TRACE, "Enter\n");
1603 if (!check_vif_up(ifp->vif))
1604 return -EIO;
1605
1606 switch (type) {
1607 case NL80211_TX_POWER_AUTOMATIC:
1608 break;
1609 case NL80211_TX_POWER_LIMITED:
1610 case NL80211_TX_POWER_FIXED:
1611 if (dbm < 0) {
1612 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1613 err = -EINVAL;
1614 goto done;
1615 }
1616 break;
1617 }
1618 /* Make sure radio is off or on as far as software is concerned */
1619 disable = WL_RADIO_SW_DISABLE << 16;
1620 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1621 if (err)
1622 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1623
1624 if (dbm > 0xffff)
1625 txpwrmw = 0xffff;
1626 else
1627 txpwrmw = (u16) dbm;
1628 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1629 (s32)brcmf_mw_to_qdbm(txpwrmw));
1630 if (err)
1631 brcmf_err("qtxpower error (%d)\n", err);
1632 cfg->conf->tx_power = dbm;
1633
1634done:
1635 brcmf_dbg(TRACE, "Exit\n");
1636 return err;
1637}
1638
1639static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1640 struct wireless_dev *wdev,
1641 s32 *dbm)
1642{
1643 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1644 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1645 s32 txpwrdbm;
1646 u8 result;
1647 s32 err = 0;
1648
1649 brcmf_dbg(TRACE, "Enter\n");
1650 if (!check_vif_up(ifp->vif))
1651 return -EIO;
1652
1653 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1654 if (err) {
1655 brcmf_err("error (%d)\n", err);
1656 goto done;
1657 }
1658
1659 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1660 *dbm = (s32) brcmf_qdbm_to_mw(result);
1661
1662done:
1663 brcmf_dbg(TRACE, "Exit\n");
1664 return err;
1665}
1666
1667static s32
1668brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1669 u8 key_idx, bool unicast, bool multicast)
1670{
1671 struct brcmf_if *ifp = netdev_priv(ndev);
1672 u32 index;
1673 u32 wsec;
1674 s32 err = 0;
1675
1676 brcmf_dbg(TRACE, "Enter\n");
1677 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1678 if (!check_vif_up(ifp->vif))
1679 return -EIO;
1680
1681 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1682 if (err) {
1683 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1684 goto done;
1685 }
1686
1687 if (wsec & WEP_ENABLED) {
1688 /* Just select a new current key */
1689 index = key_idx;
1690 err = brcmf_fil_cmd_int_set(ifp,
1691 BRCMF_C_SET_KEY_PRIMARY, index);
1692 if (err)
1693 brcmf_err("error (%d)\n", err);
1694 }
1695done:
1696 brcmf_dbg(TRACE, "Exit\n");
1697 return err;
1698}
1699
1700static s32
1701brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1702 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1703{
1704 struct brcmf_wsec_key key;
1705 s32 err = 0;
1706
1707 memset(&key, 0, sizeof(key));
1708 key.index = (u32) key_idx;
1709 /* Instead of bcast for ea address for default wep keys,
1710 driver needs it to be Null */
1711 if (!is_multicast_ether_addr(mac_addr))
1712 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1713 key.len = (u32) params->key_len;
1714 /* check for key index change */
1715 if (key.len == 0) {
1716 /* key delete */
1717 err = send_key_to_dongle(ndev, &key);
1718 if (err)
1719 brcmf_err("key delete error (%d)\n", err);
1720 } else {
1721 if (key.len > sizeof(key.data)) {
1722 brcmf_err("Invalid key length (%d)\n", key.len);
1723 return -EINVAL;
1724 }
1725
1726 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1727 memcpy(key.data, params->key, key.len);
1728
1729 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) {
1730 u8 keybuf[8];
1731 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1732 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1733 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1734 }
1735
1736 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1737 if (params->seq && params->seq_len == 6) {
1738 /* rx iv */
1739 u8 *ivptr;
1740 ivptr = (u8 *) params->seq;
1741 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1742 (ivptr[3] << 8) | ivptr[2];
1743 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1744 key.iv_initialized = true;
1745 }
1746
1747 switch (params->cipher) {
1748 case WLAN_CIPHER_SUITE_WEP40:
1749 key.algo = CRYPTO_ALGO_WEP1;
1750 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1751 break;
1752 case WLAN_CIPHER_SUITE_WEP104:
1753 key.algo = CRYPTO_ALGO_WEP128;
1754 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1755 break;
1756 case WLAN_CIPHER_SUITE_TKIP:
1757 key.algo = CRYPTO_ALGO_TKIP;
1758 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1759 break;
1760 case WLAN_CIPHER_SUITE_AES_CMAC:
1761 key.algo = CRYPTO_ALGO_AES_CCM;
1762 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1763 break;
1764 case WLAN_CIPHER_SUITE_CCMP:
1765 key.algo = CRYPTO_ALGO_AES_CCM;
1766 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
1767 break;
1768 default:
1769 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
1770 return -EINVAL;
1771 }
1772 err = send_key_to_dongle(ndev, &key);
1773 if (err)
1774 brcmf_err("wsec_key error (%d)\n", err);
1775 }
1776 return err;
1777}
1778
1779static s32
1780brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1781 u8 key_idx, bool pairwise, const u8 *mac_addr,
1782 struct key_params *params)
1783{
1784 struct brcmf_if *ifp = netdev_priv(ndev);
1785 struct brcmf_wsec_key key;
1786 s32 val;
1787 s32 wsec;
1788 s32 err = 0;
1789 u8 keybuf[8];
1790
1791 brcmf_dbg(TRACE, "Enter\n");
1792 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1793 if (!check_vif_up(ifp->vif))
1794 return -EIO;
1795
1796 if (mac_addr) {
1797 brcmf_dbg(TRACE, "Exit");
1798 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
1799 }
1800 memset(&key, 0, sizeof(key));
1801
1802 key.len = (u32) params->key_len;
1803 key.index = (u32) key_idx;
1804
1805 if (key.len > sizeof(key.data)) {
1806 brcmf_err("Too long key length (%u)\n", key.len);
1807 err = -EINVAL;
1808 goto done;
1809 }
1810 memcpy(key.data, params->key, key.len);
1811
1812 key.flags = BRCMF_PRIMARY_KEY;
1813 switch (params->cipher) {
1814 case WLAN_CIPHER_SUITE_WEP40:
1815 key.algo = CRYPTO_ALGO_WEP1;
1816 val = WEP_ENABLED;
1817 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1818 break;
1819 case WLAN_CIPHER_SUITE_WEP104:
1820 key.algo = CRYPTO_ALGO_WEP128;
1821 val = WEP_ENABLED;
1822 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1823 break;
1824 case WLAN_CIPHER_SUITE_TKIP:
1825 if (ifp->vif->mode != WL_MODE_AP) {
1826 brcmf_dbg(CONN, "Swapping key\n");
1827 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1828 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1829 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1830 }
1831 key.algo = CRYPTO_ALGO_TKIP;
1832 val = TKIP_ENABLED;
1833 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1834 break;
1835 case WLAN_CIPHER_SUITE_AES_CMAC:
1836 key.algo = CRYPTO_ALGO_AES_CCM;
1837 val = AES_ENABLED;
1838 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1839 break;
1840 case WLAN_CIPHER_SUITE_CCMP:
1841 key.algo = CRYPTO_ALGO_AES_CCM;
1842 val = AES_ENABLED;
1843 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
1844 break;
1845 default:
1846 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
1847 err = -EINVAL;
1848 goto done;
1849 }
1850
1851 err = send_key_to_dongle(ndev, &key);
1852 if (err)
1853 goto done;
1854
1855 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1856 if (err) {
1857 brcmf_err("get wsec error (%d)\n", err);
1858 goto done;
1859 }
1860 wsec |= val;
1861 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
1862 if (err) {
1863 brcmf_err("set wsec error (%d)\n", err);
1864 goto done;
1865 }
1866
1867done:
1868 brcmf_dbg(TRACE, "Exit\n");
1869 return err;
1870}
1871
1872static s32
1873brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1874 u8 key_idx, bool pairwise, const u8 *mac_addr)
1875{
1876 struct brcmf_if *ifp = netdev_priv(ndev);
1877 struct brcmf_wsec_key key;
1878 s32 err = 0;
1879
1880 brcmf_dbg(TRACE, "Enter\n");
1881 if (!check_vif_up(ifp->vif))
1882 return -EIO;
1883
1884 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
1885 /* we ignore this key index in this case */
1886 brcmf_err("invalid key index (%d)\n", key_idx);
1887 return -EINVAL;
1888 }
1889
1890 memset(&key, 0, sizeof(key));
1891
1892 key.index = (u32) key_idx;
1893 key.flags = BRCMF_PRIMARY_KEY;
1894 key.algo = CRYPTO_ALGO_OFF;
1895
1896 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1897
1898 /* Set the new key/index */
1899 err = send_key_to_dongle(ndev, &key);
1900
1901 brcmf_dbg(TRACE, "Exit\n");
1902 return err;
1903}
1904
1905static s32
1906brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1907 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
1908 void (*callback) (void *cookie, struct key_params * params))
1909{
1910 struct key_params params;
1911 struct brcmf_if *ifp = netdev_priv(ndev);
1912 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1913 struct brcmf_cfg80211_security *sec;
1914 s32 wsec;
1915 s32 err = 0;
1916
1917 brcmf_dbg(TRACE, "Enter\n");
1918 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1919 if (!check_vif_up(ifp->vif))
1920 return -EIO;
1921
1922 memset(&params, 0, sizeof(params));
1923
1924 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1925 if (err) {
1926 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1927 /* Ignore this error, may happen during DISASSOC */
1928 err = -EAGAIN;
1929 goto done;
1930 }
1931 switch (wsec & ~SES_OW_ENABLED) {
1932 case WEP_ENABLED:
1933 sec = &profile->sec;
1934 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
1935 params.cipher = WLAN_CIPHER_SUITE_WEP40;
1936 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1937 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
1938 params.cipher = WLAN_CIPHER_SUITE_WEP104;
1939 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1940 }
1941 break;
1942 case TKIP_ENABLED:
1943 params.cipher = WLAN_CIPHER_SUITE_TKIP;
1944 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1945 break;
1946 case AES_ENABLED:
1947 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
1948 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1949 break;
1950 default:
1951 brcmf_err("Invalid algo (0x%x)\n", wsec);
1952 err = -EINVAL;
1953 goto done;
1954 }
1955 callback(cookie, &params);
1956
1957done:
1958 brcmf_dbg(TRACE, "Exit\n");
1959 return err;
1960}
1961
1962static s32
1963brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
1964 struct net_device *ndev, u8 key_idx)
1965{
1966 brcmf_dbg(INFO, "Not supported\n");
1967
1968 return -EOPNOTSUPP;
1969}
1970
1971static s32
1972brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
1973 u8 *mac, struct station_info *sinfo)
1974{
1975 struct brcmf_if *ifp = netdev_priv(ndev);
1976 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1977 struct brcmf_scb_val_le scb_val;
1978 int rssi;
1979 s32 rate;
1980 s32 err = 0;
1981 u8 *bssid = profile->bssid;
1982 struct brcmf_sta_info_le sta_info_le;
1983
1984 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
1985 if (!check_vif_up(ifp->vif))
1986 return -EIO;
1987
1988 if (ifp->vif->mode == WL_MODE_AP) {
1989 memcpy(&sta_info_le, mac, ETH_ALEN);
1990 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
1991 &sta_info_le,
1992 sizeof(sta_info_le));
1993 if (err < 0) {
1994 brcmf_err("GET STA INFO failed, %d\n", err);
1995 goto done;
1996 }
1997 sinfo->filled = STATION_INFO_INACTIVE_TIME;
1998 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
1999 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2000 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2001 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2002 }
2003 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2004 sinfo->inactive_time, sinfo->connected_time);
2005 } else if (ifp->vif->mode == WL_MODE_BSS) {
2006 if (memcmp(mac, bssid, ETH_ALEN)) {
2007 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2008 mac, bssid);
2009 err = -ENOENT;
2010 goto done;
2011 }
2012 /* Report the current tx rate */
2013 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2014 if (err) {
2015 brcmf_err("Could not get rate (%d)\n", err);
2016 goto done;
2017 } else {
2018 sinfo->filled |= STATION_INFO_TX_BITRATE;
2019 sinfo->txrate.legacy = rate * 5;
2020 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2021 }
2022
2023 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2024 &ifp->vif->sme_state)) {
2025 memset(&scb_val, 0, sizeof(scb_val));
2026 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2027 &scb_val, sizeof(scb_val));
2028 if (err) {
2029 brcmf_err("Could not get rssi (%d)\n", err);
2030 goto done;
2031 } else {
2032 rssi = le32_to_cpu(scb_val.val);
2033 sinfo->filled |= STATION_INFO_SIGNAL;
2034 sinfo->signal = rssi;
2035 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2036 }
2037 }
2038 } else
2039 err = -EPERM;
2040done:
2041 brcmf_dbg(TRACE, "Exit\n");
2042 return err;
2043}
2044
2045static s32
2046brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2047 bool enabled, s32 timeout)
2048{
2049 s32 pm;
2050 s32 err = 0;
2051 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2052 struct brcmf_if *ifp = netdev_priv(ndev);
2053
2054 brcmf_dbg(TRACE, "Enter\n");
2055
2056 /*
2057 * Powersave enable/disable request is coming from the
2058 * cfg80211 even before the interface is up. In that
2059 * scenario, driver will be storing the power save
2060 * preference in cfg struct to apply this to
2061 * FW later while initializing the dongle
2062 */
2063 cfg->pwr_save = enabled;
2064 if (!check_vif_up(ifp->vif)) {
2065
2066 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2067 goto done;
2068 }
2069
2070 pm = enabled ? PM_FAST : PM_OFF;
2071 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2072
2073 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2074 if (err) {
2075 if (err == -ENODEV)
2076 brcmf_err("net_device is not ready yet\n");
2077 else
2078 brcmf_err("error (%d)\n", err);
2079 }
2080done:
2081 brcmf_dbg(TRACE, "Exit\n");
2082 return err;
2083}
2084
2085static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2086 struct brcmf_bss_info_le *bi)
2087{
2088 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2089 struct ieee80211_channel *notify_channel;
2090 struct cfg80211_bss *bss;
2091 struct ieee80211_supported_band *band;
2092 s32 err = 0;
2093 u16 channel;
2094 u32 freq;
2095 u16 notify_capability;
2096 u16 notify_interval;
2097 u8 *notify_ie;
2098 size_t notify_ielen;
2099 s32 notify_signal;
2100
2101 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2102 brcmf_err("Bss info is larger than buffer. Discarding\n");
2103 return 0;
2104 }
2105
2106 channel = bi->ctl_ch ? bi->ctl_ch :
2107 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2108
2109 if (channel <= CH_MAX_2G_CHANNEL)
2110 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2111 else
2112 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2113
2114 freq = ieee80211_channel_to_frequency(channel, band->band);
2115 notify_channel = ieee80211_get_channel(wiphy, freq);
2116
2117 notify_capability = le16_to_cpu(bi->capability);
2118 notify_interval = le16_to_cpu(bi->beacon_period);
2119 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2120 notify_ielen = le32_to_cpu(bi->ie_length);
2121 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2122
2123 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2124 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2125 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2126 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2127 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2128
2129 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2130 0, notify_capability, notify_interval, notify_ie,
2131 notify_ielen, notify_signal, GFP_KERNEL);
2132
2133 if (!bss)
2134 return -ENOMEM;
2135
2136 cfg80211_put_bss(bss);
2137
2138 return err;
2139}
2140
2141static struct brcmf_bss_info_le *
2142next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2143{
2144 if (bss == NULL)
2145 return list->bss_info_le;
2146 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2147 le32_to_cpu(bss->length));
2148}
2149
2150static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2151{
2152 struct brcmf_scan_results *bss_list;
2153 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2154 s32 err = 0;
2155 int i;
2156
2157 bss_list = cfg->bss_list;
2158 if (bss_list->count != 0 &&
2159 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2160 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2161 bss_list->version);
2162 return -EOPNOTSUPP;
2163 }
2164 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2165 for (i = 0; i < bss_list->count; i++) {
2166 bi = next_bss_le(bss_list, bi);
2167 err = brcmf_inform_single_bss(cfg, bi);
2168 if (err)
2169 break;
2170 }
2171 return err;
2172}
2173
2174static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2175 struct net_device *ndev, const u8 *bssid)
2176{
2177 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2178 struct ieee80211_channel *notify_channel;
2179 struct brcmf_bss_info_le *bi = NULL;
2180 struct ieee80211_supported_band *band;
2181 struct cfg80211_bss *bss;
2182 u8 *buf = NULL;
2183 s32 err = 0;
2184 u16 channel;
2185 u32 freq;
2186 u16 notify_capability;
2187 u16 notify_interval;
2188 u8 *notify_ie;
2189 size_t notify_ielen;
2190 s32 notify_signal;
2191
2192 brcmf_dbg(TRACE, "Enter\n");
2193
2194 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2195 if (buf == NULL) {
2196 err = -ENOMEM;
2197 goto CleanUp;
2198 }
2199
2200 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2201
2202 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2203 buf, WL_BSS_INFO_MAX);
2204 if (err) {
2205 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2206 goto CleanUp;
2207 }
2208
2209 bi = (struct brcmf_bss_info_le *)(buf + 4);
2210
2211 channel = bi->ctl_ch ? bi->ctl_ch :
2212 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2213
2214 if (channel <= CH_MAX_2G_CHANNEL)
2215 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2216 else
2217 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2218
2219 freq = ieee80211_channel_to_frequency(channel, band->band);
2220 notify_channel = ieee80211_get_channel(wiphy, freq);
2221
2222 notify_capability = le16_to_cpu(bi->capability);
2223 notify_interval = le16_to_cpu(bi->beacon_period);
2224 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2225 notify_ielen = le32_to_cpu(bi->ie_length);
2226 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2227
2228 brcmf_dbg(CONN, "channel: %d(%d)\n", channel, freq);
2229 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2230 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2231 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2232
2233 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2234 0, notify_capability, notify_interval,
2235 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2236
2237 if (!bss) {
2238 err = -ENOMEM;
2239 goto CleanUp;
2240 }
2241
2242 cfg80211_put_bss(bss);
2243
2244CleanUp:
2245
2246 kfree(buf);
2247
2248 brcmf_dbg(TRACE, "Exit\n");
2249
2250 return err;
2251}
2252
2253static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
2254{
2255 return vif->mode == WL_MODE_IBSS;
2256}
2257
2258/*
2259 * Traverse a string of 1-byte tag/1-byte length/variable-length value
2260 * triples, returning a pointer to the substring whose first element
2261 * matches tag
2262 */
2263struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
2264{
2265 struct brcmf_tlv *elt;
2266 int totlen;
2267
2268 elt = (struct brcmf_tlv *) buf;
2269 totlen = buflen;
2270
2271 /* find tagged parameter */
2272 while (totlen >= TLV_HDR_LEN) {
2273 int len = elt->len;
2274
2275 /* validate remaining totlen */
2276 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
2277 return elt;
2278
2279 elt = (struct brcmf_tlv *) ((u8 *) elt + (len + TLV_HDR_LEN));
2280 totlen -= (len + TLV_HDR_LEN);
2281 }
2282
2283 return NULL;
2284}
2285
2286/* Is any of the tlvs the expected entry? If
2287 * not update the tlvs buffer pointer/length.
2288 */
2289static bool
2290brcmf_tlv_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len,
2291 u8 *oui, u32 oui_len, u8 type)
2292{
2293 /* If the contents match the OUI and the type */
2294 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
2295 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
2296 type == ie[TLV_BODY_OFF + oui_len]) {
2297 return true;
2298 }
2299
2300 if (tlvs == NULL)
2301 return false;
2302 /* point to the next ie */
2303 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
2304 /* calculate the length of the rest of the buffer */
2305 *tlvs_len -= (int)(ie - *tlvs);
2306 /* update the pointer to the start of the buffer */
2307 *tlvs = ie;
2308
2309 return false;
2310}
2311
2312static struct brcmf_vs_tlv *
2313brcmf_find_wpaie(u8 *parse, u32 len)
2314{
2315 struct brcmf_tlv *ie;
2316
2317 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
2318 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
2319 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
2320 return (struct brcmf_vs_tlv *)ie;
2321 }
2322 return NULL;
2323}
2324
2325static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg)
2326{
2327 struct net_device *ndev = cfg_to_ndev(cfg);
2328 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
2329 struct brcmf_if *ifp = netdev_priv(ndev);
2330 struct brcmf_bss_info_le *bi;
2331 struct brcmf_ssid *ssid;
2332 struct brcmf_tlv *tim;
2333 u16 beacon_interval;
2334 u8 dtim_period;
2335 size_t ie_len;
2336 u8 *ie;
2337 s32 err = 0;
2338
2339 brcmf_dbg(TRACE, "Enter\n");
2340 if (brcmf_is_ibssmode(ifp->vif))
2341 return err;
2342
2343 ssid = &profile->ssid;
2344
2345 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2346 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2347 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2348 if (err) {
2349 brcmf_err("Could not get bss info %d\n", err);
2350 goto update_bss_info_out;
2351 }
2352
2353 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2354 err = brcmf_inform_single_bss(cfg, bi);
2355 if (err)
2356 goto update_bss_info_out;
2357
2358 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2359 ie_len = le32_to_cpu(bi->ie_length);
2360 beacon_interval = le16_to_cpu(bi->beacon_period);
2361
2362 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2363 if (tim)
2364 dtim_period = tim->data[1];
2365 else {
2366 /*
2367 * active scan was done so we could not get dtim
2368 * information out of probe response.
2369 * so we speficially query dtim information to dongle.
2370 */
2371 u32 var;
2372 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2373 if (err) {
2374 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2375 goto update_bss_info_out;
2376 }
2377 dtim_period = (u8)var;
2378 }
2379
2380update_bss_info_out:
2381 brcmf_dbg(TRACE, "Exit");
2382 return err;
2383}
2384
2385static void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2386{
2387 struct escan_info *escan = &cfg->escan_info;
2388
2389 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2390 if (cfg->scan_request) {
2391 escan->escan_state = WL_ESCAN_STATE_IDLE;
2392 brcmf_notify_escan_complete(cfg, escan->ndev, true, true);
2393 }
2394 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2395 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2396}
2397
2398static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2399{
2400 struct brcmf_cfg80211_info *cfg =
2401 container_of(work, struct brcmf_cfg80211_info,
2402 escan_timeout_work);
2403
2404 brcmf_notify_escan_complete(cfg,
2405 cfg->escan_info.ndev, true, true);
2406}
2407
2408static void brcmf_escan_timeout(unsigned long data)
2409{
2410 struct brcmf_cfg80211_info *cfg =
2411 (struct brcmf_cfg80211_info *)data;
2412
2413 if (cfg->scan_request) {
2414 brcmf_err("timer expired\n");
2415 schedule_work(&cfg->escan_timeout_work);
2416 }
2417}
2418
2419static s32
2420brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
2421 struct brcmf_bss_info_le *bss_info_le)
2422{
2423 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2424 (CHSPEC_BAND(le16_to_cpu(bss_info_le->chanspec)) ==
2425 CHSPEC_BAND(le16_to_cpu(bss->chanspec))) &&
2426 bss_info_le->SSID_len == bss->SSID_len &&
2427 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2428 if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
2429 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
2430 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2431 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2432
2433 /* preserve max RSSI if the measurements are
2434 * both on-channel or both off-channel
2435 */
2436 if (bss_info_rssi > bss_rssi)
2437 bss->RSSI = bss_info_le->RSSI;
2438 } else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
2439 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {
2440 /* preserve the on-channel rssi measurement
2441 * if the new measurement is off channel
2442 */
2443 bss->RSSI = bss_info_le->RSSI;
2444 bss->flags |= WLC_BSS_RSSI_ON_CHANNEL;
2445 }
2446 return 1;
2447 }
2448 return 0;
2449}
2450
2451static s32
2452brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2453 const struct brcmf_event_msg *e, void *data)
2454{
2455 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2456 struct net_device *ndev = ifp->ndev;
2457 s32 status;
2458 s32 err = 0;
2459 struct brcmf_escan_result_le *escan_result_le;
2460 struct brcmf_bss_info_le *bss_info_le;
2461 struct brcmf_bss_info_le *bss = NULL;
2462 u32 bi_length;
2463 struct brcmf_scan_results *list;
2464 u32 i;
2465 bool aborted;
2466
2467 status = e->status;
2468
2469 if (!ndev || !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2470 brcmf_err("scan not ready ndev %p drv_status %x\n", ndev,
2471 !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status));
2472 return -EPERM;
2473 }
2474
2475 if (status == BRCMF_E_STATUS_PARTIAL) {
2476 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2477 escan_result_le = (struct brcmf_escan_result_le *) data;
2478 if (!escan_result_le) {
2479 brcmf_err("Invalid escan result (NULL pointer)\n");
2480 goto exit;
2481 }
2482 if (!cfg->scan_request) {
2483 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2484 goto exit;
2485 }
2486
2487 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2488 brcmf_err("Invalid bss_count %d: ignoring\n",
2489 escan_result_le->bss_count);
2490 goto exit;
2491 }
2492 bss_info_le = &escan_result_le->bss_info_le;
2493
2494 bi_length = le32_to_cpu(bss_info_le->length);
2495 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2496 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2497 brcmf_err("Invalid bss_info length %d: ignoring\n",
2498 bi_length);
2499 goto exit;
2500 }
2501
2502 if (!(cfg_to_wiphy(cfg)->interface_modes &
2503 BIT(NL80211_IFTYPE_ADHOC))) {
2504 if (le16_to_cpu(bss_info_le->capability) &
2505 WLAN_CAPABILITY_IBSS) {
2506 brcmf_err("Ignoring IBSS result\n");
2507 goto exit;
2508 }
2509 }
2510
2511 list = (struct brcmf_scan_results *)
2512 cfg->escan_info.escan_buf;
2513 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2514 brcmf_err("Buffer is too small: ignoring\n");
2515 goto exit;
2516 }
2517
2518 for (i = 0; i < list->count; i++) {
2519 bss = bss ? (struct brcmf_bss_info_le *)
2520 ((unsigned char *)bss +
2521 le32_to_cpu(bss->length)) : list->bss_info_le;
2522 if (brcmf_compare_update_same_bss(bss, bss_info_le))
2523 goto exit;
2524 }
2525 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2526 bss_info_le, bi_length);
2527 list->version = le32_to_cpu(bss_info_le->version);
2528 list->buflen += bi_length;
2529 list->count++;
2530 } else {
2531 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2532 if (cfg->scan_request) {
2533 cfg->bss_list = (struct brcmf_scan_results *)
2534 cfg->escan_info.escan_buf;
2535 brcmf_inform_bss(cfg);
2536 aborted = status != BRCMF_E_STATUS_SUCCESS;
2537 brcmf_notify_escan_complete(cfg, ndev, aborted,
2538 false);
2539 } else
2540 brcmf_err("Unexpected scan result 0x%x\n", status);
2541 }
2542exit:
2543 return err;
2544}
2545
2546static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2547{
2548 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2549 brcmf_cfg80211_escan_handler);
2550 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2551 /* Init scan_timeout timer */
2552 init_timer(&cfg->escan_timeout);
2553 cfg->escan_timeout.data = (unsigned long) cfg;
2554 cfg->escan_timeout.function = brcmf_escan_timeout;
2555 INIT_WORK(&cfg->escan_timeout_work,
2556 brcmf_cfg80211_escan_timeout_worker);
2557}
2558
2559static __always_inline void brcmf_delay(u32 ms)
2560{
2561 if (ms < 1000 / HZ) {
2562 cond_resched();
2563 mdelay(ms);
2564 } else {
2565 msleep(ms);
2566 }
2567}
2568
2569static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2570{
2571 brcmf_dbg(TRACE, "Enter\n");
2572
2573 return 0;
2574}
2575
2576static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2577 struct cfg80211_wowlan *wow)
2578{
2579 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2580 struct net_device *ndev = cfg_to_ndev(cfg);
2581 struct brcmf_cfg80211_vif *vif;
2582
2583 brcmf_dbg(TRACE, "Enter\n");
2584
2585 /*
2586 * if the primary net_device is not READY there is nothing
2587 * we can do but pray resume goes smoothly.
2588 */
2589 vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
2590 if (!check_vif_up(vif))
2591 goto exit;
2592
2593 list_for_each_entry(vif, &cfg->vif_list, list) {
2594 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2595 continue;
2596 /*
2597 * While going to suspend if associated with AP disassociate
2598 * from AP to save power while system is in suspended state
2599 */
2600 brcmf_link_down(vif);
2601
2602 /* Make sure WPA_Supplicant receives all the event
2603 * generated due to DISASSOC call to the fw to keep
2604 * the state fw and WPA_Supplicant state consistent
2605 */
2606 brcmf_delay(500);
2607 }
2608
2609 /* end any scanning */
2610 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2611 brcmf_abort_scanning(cfg);
2612
2613 /* Turn off watchdog timer */
2614 brcmf_set_mpc(ndev, 1);
2615
2616exit:
2617 brcmf_dbg(TRACE, "Exit\n");
2618 /* clear any scanning activity */
2619 cfg->scan_status = 0;
2620 return 0;
2621}
2622
2623static __used s32
2624brcmf_update_pmklist(struct net_device *ndev,
2625 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2626{
2627 int i, j;
2628 int pmkid_len;
2629
2630 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2631
2632 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2633 for (i = 0; i < pmkid_len; i++) {
2634 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2635 &pmk_list->pmkids.pmkid[i].BSSID);
2636 for (j = 0; j < WLAN_PMKID_LEN; j++)
2637 brcmf_dbg(CONN, "%02x\n",
2638 pmk_list->pmkids.pmkid[i].PMKID[j]);
2639 }
2640
2641 if (!err)
2642 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2643 (char *)pmk_list, sizeof(*pmk_list));
2644
2645 return err;
2646}
2647
2648static s32
2649brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2650 struct cfg80211_pmksa *pmksa)
2651{
2652 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2653 struct brcmf_if *ifp = netdev_priv(ndev);
2654 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2655 s32 err = 0;
2656 int i;
2657 int pmkid_len;
2658
2659 brcmf_dbg(TRACE, "Enter\n");
2660 if (!check_vif_up(ifp->vif))
2661 return -EIO;
2662
2663 pmkid_len = le32_to_cpu(pmkids->npmkid);
2664 for (i = 0; i < pmkid_len; i++)
2665 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2666 break;
2667 if (i < WL_NUM_PMKIDS_MAX) {
2668 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2669 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2670 if (i == pmkid_len) {
2671 pmkid_len++;
2672 pmkids->npmkid = cpu_to_le32(pmkid_len);
2673 }
2674 } else
2675 err = -EINVAL;
2676
2677 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2678 pmkids->pmkid[pmkid_len].BSSID);
2679 for (i = 0; i < WLAN_PMKID_LEN; i++)
2680 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2681
2682 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2683
2684 brcmf_dbg(TRACE, "Exit\n");
2685 return err;
2686}
2687
2688static s32
2689brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2690 struct cfg80211_pmksa *pmksa)
2691{
2692 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2693 struct brcmf_if *ifp = netdev_priv(ndev);
2694 struct pmkid_list pmkid;
2695 s32 err = 0;
2696 int i, pmkid_len;
2697
2698 brcmf_dbg(TRACE, "Enter\n");
2699 if (!check_vif_up(ifp->vif))
2700 return -EIO;
2701
2702 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2703 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2704
2705 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2706 &pmkid.pmkid[0].BSSID);
2707 for (i = 0; i < WLAN_PMKID_LEN; i++)
2708 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
2709
2710 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
2711 for (i = 0; i < pmkid_len; i++)
2712 if (!memcmp
2713 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
2714 ETH_ALEN))
2715 break;
2716
2717 if ((pmkid_len > 0)
2718 && (i < pmkid_len)) {
2719 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
2720 sizeof(struct pmkid));
2721 for (; i < (pmkid_len - 1); i++) {
2722 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
2723 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
2724 ETH_ALEN);
2725 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
2726 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
2727 WLAN_PMKID_LEN);
2728 }
2729 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2730 } else
2731 err = -EINVAL;
2732
2733 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2734
2735 brcmf_dbg(TRACE, "Exit\n");
2736 return err;
2737
2738}
2739
2740static s32
2741brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2742{
2743 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2744 struct brcmf_if *ifp = netdev_priv(ndev);
2745 s32 err = 0;
2746
2747 brcmf_dbg(TRACE, "Enter\n");
2748 if (!check_vif_up(ifp->vif))
2749 return -EIO;
2750
2751 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
2752 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2753
2754 brcmf_dbg(TRACE, "Exit\n");
2755 return err;
2756
2757}
2758
2759/*
2760 * PFN result doesn't have all the info which are
2761 * required by the supplicant
2762 * (For e.g IEs) Do a target Escan so that sched scan results are reported
2763 * via wl_inform_single_bss in the required format. Escan does require the
2764 * scan request in the form of cfg80211_scan_request. For timebeing, create
2765 * cfg80211_scan_request one out of the received PNO event.
2766 */
2767static s32
2768brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
2769 const struct brcmf_event_msg *e, void *data)
2770{
2771 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2772 struct net_device *ndev = ifp->ndev;
2773 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
2774 struct cfg80211_scan_request *request = NULL;
2775 struct cfg80211_ssid *ssid = NULL;
2776 struct ieee80211_channel *channel = NULL;
2777 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2778 int err = 0;
2779 int channel_req = 0;
2780 int band = 0;
2781 struct brcmf_pno_scanresults_le *pfn_result;
2782 u32 result_count;
2783 u32 status;
2784
2785 brcmf_dbg(SCAN, "Enter\n");
2786
2787 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
2788 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
2789 return 0;
2790 }
2791
2792 pfn_result = (struct brcmf_pno_scanresults_le *)data;
2793 result_count = le32_to_cpu(pfn_result->count);
2794 status = le32_to_cpu(pfn_result->status);
2795
2796 /*
2797 * PFN event is limited to fit 512 bytes so we may get
2798 * multiple NET_FOUND events. For now place a warning here.
2799 */
2800 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
2801 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
2802 if (result_count > 0) {
2803 int i;
2804
2805 request = kzalloc(sizeof(*request), GFP_KERNEL);
2806 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
2807 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
2808 if (!request || !ssid || !channel) {
2809 err = -ENOMEM;
2810 goto out_err;
2811 }
2812
2813 request->wiphy = wiphy;
2814 data += sizeof(struct brcmf_pno_scanresults_le);
2815 netinfo_start = (struct brcmf_pno_net_info_le *)data;
2816
2817 for (i = 0; i < result_count; i++) {
2818 netinfo = &netinfo_start[i];
2819 if (!netinfo) {
2820 brcmf_err("Invalid netinfo ptr. index: %d\n",
2821 i);
2822 err = -EINVAL;
2823 goto out_err;
2824 }
2825
2826 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
2827 netinfo->SSID, netinfo->channel);
2828 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
2829 ssid[i].ssid_len = netinfo->SSID_len;
2830 request->n_ssids++;
2831
2832 channel_req = netinfo->channel;
2833 if (channel_req <= CH_MAX_2G_CHANNEL)
2834 band = NL80211_BAND_2GHZ;
2835 else
2836 band = NL80211_BAND_5GHZ;
2837 channel[i].center_freq =
2838 ieee80211_channel_to_frequency(channel_req,
2839 band);
2840 channel[i].band = band;
2841 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
2842 request->channels[i] = &channel[i];
2843 request->n_channels++;
2844 }
2845
2846 /* assign parsed ssid array */
2847 if (request->n_ssids)
2848 request->ssids = &ssid[0];
2849
2850 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2851 /* Abort any on-going scan */
2852 brcmf_abort_scanning(cfg);
2853 }
2854
2855 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2856 err = brcmf_do_escan(cfg, wiphy, ndev, request);
2857 if (err) {
2858 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2859 goto out_err;
2860 }
2861 cfg->sched_escan = true;
2862 cfg->scan_request = request;
2863 } else {
2864 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
2865 goto out_err;
2866 }
2867
2868 kfree(ssid);
2869 kfree(channel);
2870 kfree(request);
2871 return 0;
2872
2873out_err:
2874 kfree(ssid);
2875 kfree(channel);
2876 kfree(request);
2877 cfg80211_sched_scan_stopped(wiphy);
2878 return err;
2879}
2880
2881static int brcmf_dev_pno_clean(struct net_device *ndev)
2882{
2883 int ret;
2884
2885 /* Disable pfn */
2886 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
2887 if (ret == 0) {
2888 /* clear pfn */
2889 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
2890 NULL, 0);
2891 }
2892 if (ret < 0)
2893 brcmf_err("failed code %d\n", ret);
2894
2895 return ret;
2896}
2897
2898static int brcmf_dev_pno_config(struct net_device *ndev)
2899{
2900 struct brcmf_pno_param_le pfn_param;
2901
2902 memset(&pfn_param, 0, sizeof(pfn_param));
2903 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
2904
2905 /* set extra pno params */
2906 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
2907 pfn_param.repeat = BRCMF_PNO_REPEAT;
2908 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
2909
2910 /* set up pno scan fr */
2911 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
2912
2913 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
2914 &pfn_param, sizeof(pfn_param));
2915}
2916
2917static int
2918brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
2919 struct net_device *ndev,
2920 struct cfg80211_sched_scan_request *request)
2921{
2922 struct brcmf_if *ifp = netdev_priv(ndev);
2923 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
2924 struct brcmf_pno_net_param_le pfn;
2925 int i;
2926 int ret = 0;
2927
2928 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
2929 request->n_match_sets, request->n_ssids);
2930 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2931 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
2932 return -EAGAIN;
2933 }
2934
2935 if (!request || !request->n_ssids || !request->n_match_sets) {
2936 brcmf_err("Invalid sched scan req!! n_ssids:%d\n",
2937 request ? request->n_ssids : 0);
2938 return -EINVAL;
2939 }
2940
2941 if (request->n_ssids > 0) {
2942 for (i = 0; i < request->n_ssids; i++) {
2943 /* Active scan req for ssids */
2944 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
2945 request->ssids[i].ssid);
2946
2947 /*
2948 * match_set ssids is a supert set of n_ssid list,
2949 * so we need not add these set seperately.
2950 */
2951 }
2952 }
2953
2954 if (request->n_match_sets > 0) {
2955 /* clean up everything */
2956 ret = brcmf_dev_pno_clean(ndev);
2957 if (ret < 0) {
2958 brcmf_err("failed error=%d\n", ret);
2959 return ret;
2960 }
2961
2962 /* configure pno */
2963 ret = brcmf_dev_pno_config(ndev);
2964 if (ret < 0) {
2965 brcmf_err("PNO setup failed!! ret=%d\n", ret);
2966 return -EINVAL;
2967 }
2968
2969 /* configure each match set */
2970 for (i = 0; i < request->n_match_sets; i++) {
2971 struct cfg80211_ssid *ssid;
2972 u32 ssid_len;
2973
2974 ssid = &request->match_sets[i].ssid;
2975 ssid_len = ssid->ssid_len;
2976
2977 if (!ssid_len) {
2978 brcmf_err("skip broadcast ssid\n");
2979 continue;
2980 }
2981 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
2982 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
2983 pfn.wsec = cpu_to_le32(0);
2984 pfn.infra = cpu_to_le32(1);
2985 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
2986 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
2987 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
2988 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
2989 sizeof(pfn));
2990 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
2991 ret == 0 ? "set" : "failed", ssid->ssid);
2992 }
2993 /* Enable the PNO */
2994 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
2995 brcmf_err("PNO enable failed!! ret=%d\n", ret);
2996 return -EINVAL;
2997 }
2998 } else {
2999 return -EINVAL;
3000 }
3001
3002 return 0;
3003}
3004
3005static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3006 struct net_device *ndev)
3007{
3008 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3009
3010 brcmf_dbg(SCAN, "enter\n");
3011 brcmf_dev_pno_clean(ndev);
3012 if (cfg->sched_escan)
3013 brcmf_notify_escan_complete(cfg, ndev, true, true);
3014 return 0;
3015}
3016
3017#ifdef CONFIG_NL80211_TESTMODE
3018static int brcmf_cfg80211_testmode(struct wiphy *wiphy, void *data, int len)
3019{
3020 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3021 struct net_device *ndev = cfg_to_ndev(cfg);
3022 struct brcmf_dcmd *dcmd = data;
3023 struct sk_buff *reply;
3024 int ret;
3025
3026 brcmf_dbg(TRACE, "cmd %x set %d buf %p len %d\n", dcmd->cmd, dcmd->set,
3027 dcmd->buf, dcmd->len);
3028
3029 if (dcmd->set)
3030 ret = brcmf_fil_cmd_data_set(netdev_priv(ndev), dcmd->cmd,
3031 dcmd->buf, dcmd->len);
3032 else
3033 ret = brcmf_fil_cmd_data_get(netdev_priv(ndev), dcmd->cmd,
3034 dcmd->buf, dcmd->len);
3035 if (ret == 0) {
3036 reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
3037 nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
3038 ret = cfg80211_testmode_reply(reply);
3039 }
3040 return ret;
3041}
3042#endif
3043
3044static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3045{
3046 s32 err;
3047
3048 /* set auth */
3049 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3050 if (err < 0) {
3051 brcmf_err("auth error %d\n", err);
3052 return err;
3053 }
3054 /* set wsec */
3055 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3056 if (err < 0) {
3057 brcmf_err("wsec error %d\n", err);
3058 return err;
3059 }
3060 /* set upper-layer auth */
3061 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3062 if (err < 0) {
3063 brcmf_err("wpa_auth error %d\n", err);
3064 return err;
3065 }
3066
3067 return 0;
3068}
3069
3070static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3071{
3072 if (is_rsn_ie)
3073 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3074
3075 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3076}
3077
3078static s32
3079brcmf_configure_wpaie(struct net_device *ndev, struct brcmf_vs_tlv *wpa_ie,
3080 bool is_rsn_ie)
3081{
3082 struct brcmf_if *ifp = netdev_priv(ndev);
3083 u32 auth = 0; /* d11 open authentication */
3084 u16 count;
3085 s32 err = 0;
3086 s32 len = 0;
3087 u32 i;
3088 u32 wsec;
3089 u32 pval = 0;
3090 u32 gval = 0;
3091 u32 wpa_auth = 0;
3092 u32 offset;
3093 u8 *data;
3094 u16 rsn_cap;
3095 u32 wme_bss_disable;
3096
3097 brcmf_dbg(TRACE, "Enter\n");
3098 if (wpa_ie == NULL)
3099 goto exit;
3100
3101 len = wpa_ie->len + TLV_HDR_LEN;
3102 data = (u8 *)wpa_ie;
3103 offset = TLV_HDR_LEN;
3104 if (!is_rsn_ie)
3105 offset += VS_IE_FIXED_HDR_LEN;
3106 else
3107 offset += WPA_IE_VERSION_LEN;
3108
3109 /* check for multicast cipher suite */
3110 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3111 err = -EINVAL;
3112 brcmf_err("no multicast cipher suite\n");
3113 goto exit;
3114 }
3115
3116 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3117 err = -EINVAL;
3118 brcmf_err("ivalid OUI\n");
3119 goto exit;
3120 }
3121 offset += TLV_OUI_LEN;
3122
3123 /* pick up multicast cipher */
3124 switch (data[offset]) {
3125 case WPA_CIPHER_NONE:
3126 gval = 0;
3127 break;
3128 case WPA_CIPHER_WEP_40:
3129 case WPA_CIPHER_WEP_104:
3130 gval = WEP_ENABLED;
3131 break;
3132 case WPA_CIPHER_TKIP:
3133 gval = TKIP_ENABLED;
3134 break;
3135 case WPA_CIPHER_AES_CCM:
3136 gval = AES_ENABLED;
3137 break;
3138 default:
3139 err = -EINVAL;
3140 brcmf_err("Invalid multi cast cipher info\n");
3141 goto exit;
3142 }
3143
3144 offset++;
3145 /* walk thru unicast cipher list and pick up what we recognize */
3146 count = data[offset] + (data[offset + 1] << 8);
3147 offset += WPA_IE_SUITE_COUNT_LEN;
3148 /* Check for unicast suite(s) */
3149 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3150 err = -EINVAL;
3151 brcmf_err("no unicast cipher suite\n");
3152 goto exit;
3153 }
3154 for (i = 0; i < count; i++) {
3155 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3156 err = -EINVAL;
3157 brcmf_err("ivalid OUI\n");
3158 goto exit;
3159 }
3160 offset += TLV_OUI_LEN;
3161 switch (data[offset]) {
3162 case WPA_CIPHER_NONE:
3163 break;
3164 case WPA_CIPHER_WEP_40:
3165 case WPA_CIPHER_WEP_104:
3166 pval |= WEP_ENABLED;
3167 break;
3168 case WPA_CIPHER_TKIP:
3169 pval |= TKIP_ENABLED;
3170 break;
3171 case WPA_CIPHER_AES_CCM:
3172 pval |= AES_ENABLED;
3173 break;
3174 default:
3175 brcmf_err("Ivalid unicast security info\n");
3176 }
3177 offset++;
3178 }
3179 /* walk thru auth management suite list and pick up what we recognize */
3180 count = data[offset] + (data[offset + 1] << 8);
3181 offset += WPA_IE_SUITE_COUNT_LEN;
3182 /* Check for auth key management suite(s) */
3183 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3184 err = -EINVAL;
3185 brcmf_err("no auth key mgmt suite\n");
3186 goto exit;
3187 }
3188 for (i = 0; i < count; i++) {
3189 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3190 err = -EINVAL;
3191 brcmf_err("ivalid OUI\n");
3192 goto exit;
3193 }
3194 offset += TLV_OUI_LEN;
3195 switch (data[offset]) {
3196 case RSN_AKM_NONE:
3197 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3198 wpa_auth |= WPA_AUTH_NONE;
3199 break;
3200 case RSN_AKM_UNSPECIFIED:
3201 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3202 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3203 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3204 break;
3205 case RSN_AKM_PSK:
3206 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3207 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3208 (wpa_auth |= WPA_AUTH_PSK);
3209 break;
3210 default:
3211 brcmf_err("Ivalid key mgmt info\n");
3212 }
3213 offset++;
3214 }
3215
3216 if (is_rsn_ie) {
3217 wme_bss_disable = 1;
3218 if ((offset + RSN_CAP_LEN) <= len) {
3219 rsn_cap = data[offset] + (data[offset + 1] << 8);
3220 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3221 wme_bss_disable = 0;
3222 }
3223 /* set wme_bss_disable to sync RSN Capabilities */
3224 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3225 wme_bss_disable);
3226 if (err < 0) {
3227 brcmf_err("wme_bss_disable error %d\n", err);
3228 goto exit;
3229 }
3230 }
3231 /* FOR WPS , set SES_OW_ENABLED */
3232 wsec = (pval | gval | SES_OW_ENABLED);
3233
3234 /* set auth */
3235 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3236 if (err < 0) {
3237 brcmf_err("auth error %d\n", err);
3238 goto exit;
3239 }
3240 /* set wsec */
3241 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3242 if (err < 0) {
3243 brcmf_err("wsec error %d\n", err);
3244 goto exit;
3245 }
3246 /* set upper-layer auth */
3247 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3248 if (err < 0) {
3249 brcmf_err("wpa_auth error %d\n", err);
3250 goto exit;
3251 }
3252
3253exit:
3254 return err;
3255}
3256
3257static s32
3258brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3259 struct parsed_vndr_ies *vndr_ies)
3260{
3261 s32 err = 0;
3262 struct brcmf_vs_tlv *vndrie;
3263 struct brcmf_tlv *ie;
3264 struct parsed_vndr_ie_info *parsed_info;
3265 s32 remaining_len;
3266
3267 remaining_len = (s32)vndr_ie_len;
3268 memset(vndr_ies, 0, sizeof(*vndr_ies));
3269
3270 ie = (struct brcmf_tlv *)vndr_ie_buf;
3271 while (ie) {
3272 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3273 goto next;
3274 vndrie = (struct brcmf_vs_tlv *)ie;
3275 /* len should be bigger than OUI length + one */
3276 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3277 brcmf_err("invalid vndr ie. length is too small %d\n",
3278 vndrie->len);
3279 goto next;
3280 }
3281 /* if wpa or wme ie, do not add ie */
3282 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3283 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3284 (vndrie->oui_type == WME_OUI_TYPE))) {
3285 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3286 goto next;
3287 }
3288
3289 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3290
3291 /* save vndr ie information */
3292 parsed_info->ie_ptr = (char *)vndrie;
3293 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3294 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3295
3296 vndr_ies->count++;
3297
3298 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3299 parsed_info->vndrie.oui[0],
3300 parsed_info->vndrie.oui[1],
3301 parsed_info->vndrie.oui[2],
3302 parsed_info->vndrie.oui_type);
3303
3304 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3305 break;
3306next:
3307 remaining_len -= (ie->len + TLV_HDR_LEN);
3308 if (remaining_len <= TLV_HDR_LEN)
3309 ie = NULL;
3310 else
3311 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3312 TLV_HDR_LEN);
3313 }
3314 return err;
3315}
3316
3317static u32
3318brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3319{
3320
3321 __le32 iecount_le;
3322 __le32 pktflag_le;
3323
3324 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3325 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3326
3327 iecount_le = cpu_to_le32(1);
3328 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3329
3330 pktflag_le = cpu_to_le32(pktflag);
3331 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3332
3333 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3334
3335 return ie_len + VNDR_IE_HDR_SIZE;
3336}
3337
3338s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3339 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3340{
3341 struct brcmf_if *ifp;
3342 struct vif_saved_ie *saved_ie;
3343 s32 err = 0;
3344 u8 *iovar_ie_buf;
3345 u8 *curr_ie_buf;
3346 u8 *mgmt_ie_buf = NULL;
3347 int mgmt_ie_buf_len;
3348 u32 *mgmt_ie_len;
3349 u32 del_add_ie_buf_len = 0;
3350 u32 total_ie_buf_len = 0;
3351 u32 parsed_ie_buf_len = 0;
3352 struct parsed_vndr_ies old_vndr_ies;
3353 struct parsed_vndr_ies new_vndr_ies;
3354 struct parsed_vndr_ie_info *vndrie_info;
3355 s32 i;
3356 u8 *ptr;
3357 int remained_buf_len;
3358
3359 if (!vif)
3360 return -ENODEV;
3361 ifp = vif->ifp;
3362 saved_ie = &vif->saved_ie;
3363
3364 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3365 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3366 if (!iovar_ie_buf)
3367 return -ENOMEM;
3368 curr_ie_buf = iovar_ie_buf;
3369 if (ifp->vif->mode == WL_MODE_AP) {
3370 switch (pktflag) {
3371 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3372 mgmt_ie_buf = saved_ie->probe_res_ie;
3373 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3374 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3375 break;
3376 case BRCMF_VNDR_IE_BEACON_FLAG:
3377 mgmt_ie_buf = saved_ie->beacon_ie;
3378 mgmt_ie_len = &saved_ie->beacon_ie_len;
3379 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3380 break;
3381 default:
3382 err = -EPERM;
3383 brcmf_err("not suitable type\n");
3384 goto exit;
3385 }
3386 } else {
3387 switch (pktflag) {
3388 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3389 mgmt_ie_buf = saved_ie->probe_req_ie;
3390 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3391 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3392 break;
3393 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3394 mgmt_ie_buf = saved_ie->probe_res_ie;
3395 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3396 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3397 break;
3398 default:
3399 err = -EPERM;
3400 brcmf_err("not suitable type\n");
3401 goto exit;
3402 }
3403 }
3404
3405 if (vndr_ie_len > mgmt_ie_buf_len) {
3406 err = -ENOMEM;
3407 brcmf_err("extra IE size too big\n");
3408 goto exit;
3409 }
3410
3411 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3412 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3413 ptr = curr_ie_buf;
3414 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3415 for (i = 0; i < new_vndr_ies.count; i++) {
3416 vndrie_info = &new_vndr_ies.ie_info[i];
3417 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3418 vndrie_info->ie_len);
3419 parsed_ie_buf_len += vndrie_info->ie_len;
3420 }
3421 }
3422
3423 if (mgmt_ie_buf && *mgmt_ie_len) {
3424 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3425 (memcmp(mgmt_ie_buf, curr_ie_buf,
3426 parsed_ie_buf_len) == 0)) {
3427 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3428 goto exit;
3429 }
3430
3431 /* parse old vndr_ie */
3432 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3433
3434 /* make a command to delete old ie */
3435 for (i = 0; i < old_vndr_ies.count; i++) {
3436 vndrie_info = &old_vndr_ies.ie_info[i];
3437
3438 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3439 vndrie_info->vndrie.id,
3440 vndrie_info->vndrie.len,
3441 vndrie_info->vndrie.oui[0],
3442 vndrie_info->vndrie.oui[1],
3443 vndrie_info->vndrie.oui[2]);
3444
3445 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3446 vndrie_info->ie_ptr,
3447 vndrie_info->ie_len,
3448 "del");
3449 curr_ie_buf += del_add_ie_buf_len;
3450 total_ie_buf_len += del_add_ie_buf_len;
3451 }
3452 }
3453
3454 *mgmt_ie_len = 0;
3455 /* Add if there is any extra IE */
3456 if (mgmt_ie_buf && parsed_ie_buf_len) {
3457 ptr = mgmt_ie_buf;
3458
3459 remained_buf_len = mgmt_ie_buf_len;
3460
3461 /* make a command to add new ie */
3462 for (i = 0; i < new_vndr_ies.count; i++) {
3463 vndrie_info = &new_vndr_ies.ie_info[i];
3464
3465 /* verify remained buf size before copy data */
3466 if (remained_buf_len < (vndrie_info->vndrie.len +
3467 VNDR_IE_VSIE_OFFSET)) {
3468 brcmf_err("no space in mgmt_ie_buf: len left %d",
3469 remained_buf_len);
3470 break;
3471 }
3472 remained_buf_len -= (vndrie_info->ie_len +
3473 VNDR_IE_VSIE_OFFSET);
3474
3475 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3476 vndrie_info->vndrie.id,
3477 vndrie_info->vndrie.len,
3478 vndrie_info->vndrie.oui[0],
3479 vndrie_info->vndrie.oui[1],
3480 vndrie_info->vndrie.oui[2]);
3481
3482 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3483 vndrie_info->ie_ptr,
3484 vndrie_info->ie_len,
3485 "add");
3486
3487 /* save the parsed IE in wl struct */
3488 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3489 vndrie_info->ie_len);
3490 *mgmt_ie_len += vndrie_info->ie_len;
3491
3492 curr_ie_buf += del_add_ie_buf_len;
3493 total_ie_buf_len += del_add_ie_buf_len;
3494 }
3495 }
3496 if (total_ie_buf_len) {
3497 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3498 total_ie_buf_len);
3499 if (err)
3500 brcmf_err("vndr ie set error : %d\n", err);
3501 }
3502
3503exit:
3504 kfree(iovar_ie_buf);
3505 return err;
3506}
3507
3508s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3509{
3510 s32 pktflags[] = {
3511 BRCMF_VNDR_IE_PRBREQ_FLAG,
3512 BRCMF_VNDR_IE_PRBRSP_FLAG,
3513 BRCMF_VNDR_IE_BEACON_FLAG
3514 };
3515 int i;
3516
3517 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3518 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3519
3520 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3521 return 0;
3522}
3523
3524static s32
3525brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3526 struct cfg80211_ap_settings *settings)
3527{
3528 s32 ie_offset;
3529 struct brcmf_if *ifp = netdev_priv(ndev);
3530 struct brcmf_tlv *ssid_ie;
3531 struct brcmf_ssid_le ssid_le;
3532 s32 err = -EPERM;
3533 struct brcmf_tlv *rsn_ie;
3534 struct brcmf_vs_tlv *wpa_ie;
3535 struct brcmf_join_params join_params;
3536
3537 brcmf_dbg(TRACE, "channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
3538 cfg80211_get_chandef_type(&settings->chandef),
3539 settings->beacon_interval,
3540 settings->dtim_period);
3541 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3542 settings->ssid, settings->ssid_len, settings->auth_type,
3543 settings->inactivity_timeout);
3544
3545 if (!test_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state)) {
3546 brcmf_err("Not in AP creation mode\n");
3547 return -EPERM;
3548 }
3549
3550 memset(&ssid_le, 0, sizeof(ssid_le));
3551 if (settings->ssid == NULL || settings->ssid_len == 0) {
3552 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3553 ssid_ie = brcmf_parse_tlvs(
3554 (u8 *)&settings->beacon.head[ie_offset],
3555 settings->beacon.head_len - ie_offset,
3556 WLAN_EID_SSID);
3557 if (!ssid_ie)
3558 return -EINVAL;
3559
3560 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3561 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3562 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3563 } else {
3564 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3565 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3566 }
3567
3568 brcmf_set_mpc(ndev, 0);
3569 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3570 if (err < 0) {
3571 brcmf_err("BRCMF_C_DOWN error %d\n", err);
3572 goto exit;
3573 }
3574 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3575 if (err < 0) {
3576 brcmf_err("SET INFRA error %d\n", err);
3577 goto exit;
3578 }
3579 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3580 if (err < 0) {
3581 brcmf_err("setting AP mode failed %d\n", err);
3582 goto exit;
3583 }
3584
3585 /* find the RSN_IE */
3586 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3587 settings->beacon.tail_len, WLAN_EID_RSN);
3588
3589 /* find the WPA_IE */
3590 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3591 settings->beacon.tail_len);
3592
3593 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3594 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3595 if (wpa_ie != NULL) {
3596 /* WPA IE */
3597 err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3598 if (err < 0)
3599 goto exit;
3600 } else {
3601 /* RSN IE */
3602 err = brcmf_configure_wpaie(ndev,
3603 (struct brcmf_vs_tlv *)rsn_ie, true);
3604 if (err < 0)
3605 goto exit;
3606 }
3607 } else {
3608 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3609 brcmf_configure_opensecurity(ifp);
3610 }
3611 /* Set Beacon IEs to FW */
3612 err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
3613 BRCMF_VNDR_IE_BEACON_FLAG,
3614 settings->beacon.tail,
3615 settings->beacon.tail_len);
3616 if (err)
3617 brcmf_err("Set Beacon IE Failed\n");
3618 else
3619 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3620
3621 /* Set Probe Response IEs to FW */
3622 err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
3623 BRCMF_VNDR_IE_PRBRSP_FLAG,
3624 settings->beacon.proberesp_ies,
3625 settings->beacon.proberesp_ies_len);
3626 if (err)
3627 brcmf_err("Set Probe Resp IE Failed\n");
3628 else
3629 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3630
3631 if (settings->beacon_interval) {
3632 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3633 settings->beacon_interval);
3634 if (err < 0) {
3635 brcmf_err("Beacon Interval Set Error, %d\n", err);
3636 goto exit;
3637 }
3638 }
3639 if (settings->dtim_period) {
3640 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3641 settings->dtim_period);
3642 if (err < 0) {
3643 brcmf_err("DTIM Interval Set Error, %d\n", err);
3644 goto exit;
3645 }
3646 }
3647 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3648 if (err < 0) {
3649 brcmf_err("BRCMF_C_UP error (%d)\n", err);
3650 goto exit;
3651 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3652 }
3653
3654 memset(&join_params, 0, sizeof(join_params));
3655 /* join parameters starts with ssid */
3656 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3657 /* create softap */
3658 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3659 &join_params, sizeof(join_params));
3660 if (err < 0) {
3661 brcmf_err("SET SSID error (%d)\n", err);
3662 goto exit;
3663 }
3664 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3665 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3666
3667exit:
3668 if (err)
3669 brcmf_set_mpc(ndev, 1);
3670 return err;
3671}
3672
3673static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3674{
3675 struct brcmf_if *ifp = netdev_priv(ndev);
3676 s32 err = -EPERM;
3677
3678 brcmf_dbg(TRACE, "Enter\n");
3679
3680 if (ifp->vif->mode == WL_MODE_AP) {
3681 /* Due to most likely deauths outstanding we sleep */
3682 /* first to make sure they get processed by fw. */
3683 msleep(400);
3684 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
3685 if (err < 0) {
3686 brcmf_err("setting AP mode failed %d\n", err);
3687 goto exit;
3688 }
3689 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
3690 if (err < 0) {
3691 brcmf_err("BRCMF_C_UP error %d\n", err);
3692 goto exit;
3693 }
3694 brcmf_set_mpc(ndev, 1);
3695 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3696 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3697 }
3698exit:
3699 return err;
3700}
3701
3702static int
3703brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
3704 u8 *mac)
3705{
3706 struct brcmf_scb_val_le scbval;
3707 struct brcmf_if *ifp = netdev_priv(ndev);
3708 s32 err;
3709
3710 if (!mac)
3711 return -EFAULT;
3712
3713 brcmf_dbg(TRACE, "Enter %pM\n", mac);
3714
3715 if (!check_vif_up(ifp->vif))
3716 return -EIO;
3717
3718 memcpy(&scbval.ea, mac, ETH_ALEN);
3719 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
3720 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
3721 &scbval, sizeof(scbval));
3722 if (err)
3723 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
3724
3725 brcmf_dbg(TRACE, "Exit\n");
3726 return err;
3727}
3728
3729
3730static void
3731brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
3732 struct wireless_dev *wdev,
3733 u16 frame_type, bool reg)
3734{
3735 struct brcmf_if *ifp = netdev_priv(wdev->netdev);
3736 struct brcmf_cfg80211_vif *vif = ifp->vif;
3737 u16 mgmt_type;
3738
3739 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
3740
3741 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
3742 if (reg)
3743 vif->mgmt_rx_reg |= BIT(mgmt_type);
3744 else
3745 vif->mgmt_rx_reg |= ~BIT(mgmt_type);
3746}
3747
3748
3749static int
3750brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3751 struct ieee80211_channel *chan, bool offchan,
3752 unsigned int wait, const u8 *buf, size_t len,
3753 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
3754{
3755 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3756 const struct ieee80211_mgmt *mgmt;
3757 struct brcmf_cfg80211_vif *vif;
3758 s32 err = 0;
3759 s32 ie_offset;
3760 s32 ie_len;
3761
3762 brcmf_dbg(TRACE, "Enter\n");
3763
3764 *cookie = 0;
3765
3766 mgmt = (const struct ieee80211_mgmt *)buf;
3767
3768 if (ieee80211_is_mgmt(mgmt->frame_control)) {
3769 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
3770 /* Right now the only reason to get a probe response */
3771 /* is for p2p listen response from wpa_supplicant. */
3772 /* Unfortunately the wpa_supplicant sends it on the */
3773 /* primary ndev, while dongle wants it on the p2p */
3774 /* vif. Since this is only reason for a probe */
3775 /* response to be sent, the vif is taken from cfg. */
3776 /* If ever desired to send proberesp for non p2p */
3777 /* response then data should be checked for */
3778 /* "DIRECT-". Note in future supplicant will take */
3779 /* dedicated p2p wdev to do this and then this 'hack'*/
3780 /* is not needed anymore. */
3781 ie_offset = DOT11_MGMT_HDR_LEN +
3782 DOT11_BCN_PRB_FIXED_LEN;
3783 ie_len = len - ie_offset;
3784
3785 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
3786 if (vif == NULL) {
3787 brcmf_err("No p2p device available for probe response\n");
3788 err = -ENODEV;
3789 goto exit;
3790 }
3791 err = brcmf_vif_set_mgmt_ie(vif,
3792 BRCMF_VNDR_IE_PRBRSP_FLAG,
3793 &buf[ie_offset],
3794 ie_len);
3795 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
3796 GFP_KERNEL);
3797 goto exit;
3798 }
3799 }
3800 brcmf_dbg(TRACE, "Unhandled, is_mgmt %d, fc=%04x!!!!!\n",
3801 ieee80211_is_mgmt(mgmt->frame_control), mgmt->frame_control);
3802exit:
3803 return err;
3804}
3805
3806
3807static int
3808brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
3809 struct wireless_dev *wdev,
3810 u64 cookie)
3811{
3812 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3813 struct brcmf_cfg80211_vif *vif;
3814 int err = 0;
3815
3816 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
3817
3818 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
3819 if (vif == NULL) {
3820 brcmf_err("No p2p device available for probe response\n");
3821 err = -ENODEV;
3822 goto exit;
3823 }
3824 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
3825exit:
3826 return err;
3827}
3828
3829static s32 brcmf_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
3830 const struct brcmf_event_msg *e,
3831 void *data)
3832{
3833 struct wireless_dev *wdev;
3834 struct brcmf_cfg80211_vif *vif = ifp->vif;
3835 struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
3836 u16 chanspec = be16_to_cpu(rxframe->chanspec);
3837 u8 *mgmt_frame;
3838 u32 mgmt_frame_len;
3839 s32 freq;
3840 u16 mgmt_type;
3841
3842 brcmf_dbg(INFO,
3843 "Enter: event %d reason %d\n", e->event_code, e->reason);
3844
3845 /* Firmware sends us two proberesponses for each idx one. At the */
3846 /* moment only bsscfgidx 0 is passed up to supplicant */
3847 if (e->bsscfgidx)
3848 return 0;
3849
3850 /* Check if wpa_supplicant has registered for this frame */
3851 brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg);
3852 mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4;
3853 if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
3854 return 0;
3855
3856 mgmt_frame = (u8 *)(rxframe + 1);
3857 mgmt_frame_len = e->datalen - sizeof(*rxframe);
3858 freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
3859 CHSPEC_IS2G(chanspec) ?
3860 IEEE80211_BAND_2GHZ :
3861 IEEE80211_BAND_5GHZ);
3862 wdev = ifp->ndev->ieee80211_ptr;
3863 cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC);
3864
3865 brcmf_dbg(INFO,
3866 "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n",
3867 mgmt_frame_len, e->datalen, chanspec, freq);
3868
3869 return 0;
3870}
3871
3872
3873static struct cfg80211_ops wl_cfg80211_ops = {
3874 .add_virtual_intf = brcmf_cfg80211_add_iface,
3875 .del_virtual_intf = brcmf_cfg80211_del_iface,
3876 .change_virtual_intf = brcmf_cfg80211_change_iface,
3877 .scan = brcmf_cfg80211_scan,
3878 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
3879 .join_ibss = brcmf_cfg80211_join_ibss,
3880 .leave_ibss = brcmf_cfg80211_leave_ibss,
3881 .get_station = brcmf_cfg80211_get_station,
3882 .set_tx_power = brcmf_cfg80211_set_tx_power,
3883 .get_tx_power = brcmf_cfg80211_get_tx_power,
3884 .add_key = brcmf_cfg80211_add_key,
3885 .del_key = brcmf_cfg80211_del_key,
3886 .get_key = brcmf_cfg80211_get_key,
3887 .set_default_key = brcmf_cfg80211_config_default_key,
3888 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
3889 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
3890 .connect = brcmf_cfg80211_connect,
3891 .disconnect = brcmf_cfg80211_disconnect,
3892 .suspend = brcmf_cfg80211_suspend,
3893 .resume = brcmf_cfg80211_resume,
3894 .set_pmksa = brcmf_cfg80211_set_pmksa,
3895 .del_pmksa = brcmf_cfg80211_del_pmksa,
3896 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
3897 .start_ap = brcmf_cfg80211_start_ap,
3898 .stop_ap = brcmf_cfg80211_stop_ap,
3899 .del_station = brcmf_cfg80211_del_station,
3900 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
3901 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
3902 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
3903 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
3904 .remain_on_channel = brcmf_p2p_remain_on_channel,
3905 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
3906#ifdef CONFIG_NL80211_TESTMODE
3907 .testmode_cmd = brcmf_cfg80211_testmode
3908#endif
3909};
3910
3911static s32 brcmf_nl80211_iftype_to_mode(enum nl80211_iftype type)
3912{
3913 switch (type) {
3914 case NL80211_IFTYPE_AP_VLAN:
3915 case NL80211_IFTYPE_WDS:
3916 case NL80211_IFTYPE_MONITOR:
3917 case NL80211_IFTYPE_MESH_POINT:
3918 return -ENOTSUPP;
3919 case NL80211_IFTYPE_ADHOC:
3920 return WL_MODE_IBSS;
3921 case NL80211_IFTYPE_STATION:
3922 case NL80211_IFTYPE_P2P_CLIENT:
3923 return WL_MODE_BSS;
3924 case NL80211_IFTYPE_AP:
3925 case NL80211_IFTYPE_P2P_GO:
3926 return WL_MODE_AP;
3927 case NL80211_IFTYPE_P2P_DEVICE:
3928 return WL_MODE_P2P;
3929 case NL80211_IFTYPE_UNSPECIFIED:
3930 default:
3931 break;
3932 }
3933
3934 return -EINVAL;
3935}
3936
3937static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
3938{
3939 /* scheduled scan settings */
3940 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
3941 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
3942 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
3943 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
3944}
3945
3946static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
3947 {
3948 .max = 1,
3949 .types = BIT(NL80211_IFTYPE_STATION) |
3950 BIT(NL80211_IFTYPE_ADHOC) |
3951 BIT(NL80211_IFTYPE_AP)
3952 },
3953 {
3954 .max = 1,
3955 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
3956 BIT(NL80211_IFTYPE_P2P_GO)
3957 },
3958};
3959static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
3960 {
3961 .max_interfaces = BRCMF_IFACE_MAX_CNT - 1,
3962 .num_different_channels = 1, /* no multi-channel for now */
3963 .n_limits = ARRAY_SIZE(brcmf_iface_limits),
3964 .limits = brcmf_iface_limits
3965 }
3966};
3967
3968static const struct ieee80211_txrx_stypes
3969brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
3970 [NL80211_IFTYPE_STATION] = {
3971 .tx = 0xffff,
3972 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3973 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3974 },
3975 [NL80211_IFTYPE_P2P_CLIENT] = {
3976 .tx = 0xffff,
3977 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3978 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3979 },
3980 [NL80211_IFTYPE_P2P_GO] = {
3981 .tx = 0xffff,
3982 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
3983 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
3984 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
3985 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
3986 BIT(IEEE80211_STYPE_AUTH >> 4) |
3987 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
3988 BIT(IEEE80211_STYPE_ACTION >> 4)
3989 }
3990};
3991
3992static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
3993{
3994 struct wiphy *wiphy;
3995 s32 err = 0;
3996
3997 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
3998 if (!wiphy) {
3999 brcmf_err("Could not allocate wiphy device\n");
4000 return ERR_PTR(-ENOMEM);
4001 }
4002 set_wiphy_dev(wiphy, phydev);
4003 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
4004 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4005 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
4006 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4007 BIT(NL80211_IFTYPE_ADHOC) |
4008 BIT(NL80211_IFTYPE_AP) |
4009 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4010 BIT(NL80211_IFTYPE_P2P_GO);
4011 wiphy->iface_combinations = brcmf_iface_combos;
4012 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
4013 wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
4014 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set
4015 * it as 11a by default.
4016 * This will be updated with
4017 * 11n phy tables in
4018 * "ifconfig up"
4019 * if phy has 11n capability
4020 */
4021 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4022 wiphy->cipher_suites = __wl_cipher_suites;
4023 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
4024 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
4025 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
4026 wiphy->mgmt_stypes = brcmf_txrx_stypes;
4027 wiphy->max_remain_on_channel_duration = 5000;
4028 brcmf_wiphy_pno_params(wiphy);
4029 err = wiphy_register(wiphy);
4030 if (err < 0) {
4031 brcmf_err("Could not register wiphy device (%d)\n", err);
4032 wiphy_free(wiphy);
4033 return ERR_PTR(err);
4034 }
4035 return wiphy;
4036}
4037
4038struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4039 enum nl80211_iftype type,
4040 bool pm_block)
4041{
4042 struct brcmf_cfg80211_vif *vif;
4043
4044 if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
4045 return ERR_PTR(-ENOSPC);
4046
4047 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4048 sizeof(*vif));
4049 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4050 if (!vif)
4051 return ERR_PTR(-ENOMEM);
4052
4053 vif->wdev.wiphy = cfg->wiphy;
4054 vif->wdev.iftype = type;
4055
4056 vif->mode = brcmf_nl80211_iftype_to_mode(type);
4057 vif->pm_block = pm_block;
4058 vif->roam_off = -1;
4059
4060 brcmf_init_prof(&vif->profile);
4061
4062 list_add_tail(&vif->list, &cfg->vif_list);
4063 cfg->vif_cnt++;
4064 return vif;
4065}
4066
4067void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4068{
4069 struct brcmf_cfg80211_info *cfg;
4070 struct wiphy *wiphy;
4071
4072 wiphy = vif->wdev.wiphy;
4073 cfg = wiphy_priv(wiphy);
4074 list_del(&vif->list);
4075 cfg->vif_cnt--;
4076
4077 kfree(vif);
4078 if (!cfg->vif_cnt) {
4079 wiphy_unregister(wiphy);
4080 wiphy_free(wiphy);
4081 }
4082}
4083
4084static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4085{
4086 u32 event = e->event_code;
4087 u32 status = e->status;
4088
4089 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4090 brcmf_dbg(CONN, "Processing set ssid\n");
4091 return true;
4092 }
4093
4094 return false;
4095}
4096
4097static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4098{
4099 u32 event = e->event_code;
4100 u16 flags = e->flags;
4101
4102 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) {
4103 brcmf_dbg(CONN, "Processing link down\n");
4104 return true;
4105 }
4106 return false;
4107}
4108
4109static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4110 const struct brcmf_event_msg *e)
4111{
4112 u32 event = e->event_code;
4113 u32 status = e->status;
4114
4115 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4116 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4117 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4118 return true;
4119 }
4120
4121 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4122 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4123 return true;
4124 }
4125
4126 return false;
4127}
4128
4129static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4130{
4131 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4132
4133 kfree(conn_info->req_ie);
4134 conn_info->req_ie = NULL;
4135 conn_info->req_ie_len = 0;
4136 kfree(conn_info->resp_ie);
4137 conn_info->resp_ie = NULL;
4138 conn_info->resp_ie_len = 0;
4139}
4140
4141static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg)
4142{
4143 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4144 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4145 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4146 u32 req_len;
4147 u32 resp_len;
4148 s32 err = 0;
4149
4150 brcmf_clear_assoc_ies(cfg);
4151
4152 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4153 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4154 if (err) {
4155 brcmf_err("could not get assoc info (%d)\n", err);
4156 return err;
4157 }
4158 assoc_info =
4159 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4160 req_len = le32_to_cpu(assoc_info->req_len);
4161 resp_len = le32_to_cpu(assoc_info->resp_len);
4162 if (req_len) {
4163 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4164 cfg->extra_buf,
4165 WL_ASSOC_INFO_MAX);
4166 if (err) {
4167 brcmf_err("could not get assoc req (%d)\n", err);
4168 return err;
4169 }
4170 conn_info->req_ie_len = req_len;
4171 conn_info->req_ie =
4172 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4173 GFP_KERNEL);
4174 } else {
4175 conn_info->req_ie_len = 0;
4176 conn_info->req_ie = NULL;
4177 }
4178 if (resp_len) {
4179 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4180 cfg->extra_buf,
4181 WL_ASSOC_INFO_MAX);
4182 if (err) {
4183 brcmf_err("could not get assoc resp (%d)\n", err);
4184 return err;
4185 }
4186 conn_info->resp_ie_len = resp_len;
4187 conn_info->resp_ie =
4188 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4189 GFP_KERNEL);
4190 } else {
4191 conn_info->resp_ie_len = 0;
4192 conn_info->resp_ie = NULL;
4193 }
4194 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4195 conn_info->req_ie_len, conn_info->resp_ie_len);
4196
4197 return err;
4198}
4199
4200static s32
4201brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4202 struct net_device *ndev,
4203 const struct brcmf_event_msg *e)
4204{
4205 struct brcmf_if *ifp = netdev_priv(ndev);
4206 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4207 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4208 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4209 struct ieee80211_channel *notify_channel = NULL;
4210 struct ieee80211_supported_band *band;
4211 struct brcmf_bss_info_le *bi;
4212 u32 freq;
4213 s32 err = 0;
4214 u32 target_channel;
4215 u8 *buf;
4216
4217 brcmf_dbg(TRACE, "Enter\n");
4218
4219 brcmf_get_assoc_ies(cfg);
4220 memcpy(profile->bssid, e->addr, ETH_ALEN);
4221 brcmf_update_bss_info(cfg);
4222
4223 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4224 if (buf == NULL) {
4225 err = -ENOMEM;
4226 goto done;
4227 }
4228
4229 /* data sent to dongle has to be little endian */
4230 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4231 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4232 buf, WL_BSS_INFO_MAX);
4233
4234 if (err)
4235 goto done;
4236
4237 bi = (struct brcmf_bss_info_le *)(buf + 4);
4238 target_channel = bi->ctl_ch ? bi->ctl_ch :
4239 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
4240
4241 if (target_channel <= CH_MAX_2G_CHANNEL)
4242 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4243 else
4244 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4245
4246 freq = ieee80211_channel_to_frequency(target_channel, band->band);
4247 notify_channel = ieee80211_get_channel(wiphy, freq);
4248
4249done:
4250 kfree(buf);
4251 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4252 conn_info->req_ie, conn_info->req_ie_len,
4253 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4254 brcmf_dbg(CONN, "Report roaming result\n");
4255
4256 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4257 brcmf_dbg(TRACE, "Exit\n");
4258 return err;
4259}
4260
4261static s32
4262brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4263 struct net_device *ndev, const struct brcmf_event_msg *e,
4264 bool completed)
4265{
4266 struct brcmf_if *ifp = netdev_priv(ndev);
4267 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4268 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4269 s32 err = 0;
4270
4271 brcmf_dbg(TRACE, "Enter\n");
4272
4273 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4274 &ifp->vif->sme_state)) {
4275 if (completed) {
4276 brcmf_get_assoc_ies(cfg);
4277 memcpy(profile->bssid, e->addr, ETH_ALEN);
4278 brcmf_update_bss_info(cfg);
4279 }
4280 cfg80211_connect_result(ndev,
4281 (u8 *)profile->bssid,
4282 conn_info->req_ie,
4283 conn_info->req_ie_len,
4284 conn_info->resp_ie,
4285 conn_info->resp_ie_len,
4286 completed ? WLAN_STATUS_SUCCESS :
4287 WLAN_STATUS_AUTH_TIMEOUT,
4288 GFP_KERNEL);
4289 if (completed)
4290 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4291 &ifp->vif->sme_state);
4292 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4293 completed ? "succeeded" : "failed");
4294 }
4295 brcmf_dbg(TRACE, "Exit\n");
4296 return err;
4297}
4298
4299static s32
4300brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4301 struct net_device *ndev,
4302 const struct brcmf_event_msg *e, void *data)
4303{
4304 static int generation;
4305 u32 event = e->event_code;
4306 u32 reason = e->reason;
4307 struct station_info sinfo;
4308
4309 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4310 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4311 ndev != cfg_to_ndev(cfg)) {
4312 brcmf_dbg(CONN, "AP mode link down\n");
4313 complete(&cfg->vif_disabled);
4314 return 0;
4315 }
4316
4317 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4318 (reason == BRCMF_E_STATUS_SUCCESS)) {
4319 memset(&sinfo, 0, sizeof(sinfo));
4320 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4321 if (!data) {
4322 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4323 return -EINVAL;
4324 }
4325 sinfo.assoc_req_ies = data;
4326 sinfo.assoc_req_ies_len = e->datalen;
4327 generation++;
4328 sinfo.generation = generation;
4329 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4330 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4331 (event == BRCMF_E_DEAUTH_IND) ||
4332 (event == BRCMF_E_DEAUTH)) {
4333 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4334 }
4335 return 0;
4336}
4337
4338static s32
4339brcmf_notify_connect_status(struct brcmf_if *ifp,
4340 const struct brcmf_event_msg *e, void *data)
4341{
4342 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4343 struct net_device *ndev = ifp->ndev;
4344 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4345 s32 err = 0;
4346
4347 if (ifp->vif->mode == WL_MODE_AP) {
4348 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4349 } else if (brcmf_is_linkup(e)) {
4350 brcmf_dbg(CONN, "Linkup\n");
4351 if (brcmf_is_ibssmode(ifp->vif)) {
4352 memcpy(profile->bssid, e->addr, ETH_ALEN);
4353 wl_inform_ibss(cfg, ndev, e->addr);
4354 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
4355 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4356 &ifp->vif->sme_state);
4357 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4358 &ifp->vif->sme_state);
4359 } else
4360 brcmf_bss_connect_done(cfg, ndev, e, true);
4361 } else if (brcmf_is_linkdown(e)) {
4362 brcmf_dbg(CONN, "Linkdown\n");
4363 if (!brcmf_is_ibssmode(ifp->vif)) {
4364 brcmf_bss_connect_done(cfg, ndev, e, false);
4365 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED,
4366 &ifp->vif->sme_state))
4367 cfg80211_disconnected(ndev, 0, NULL, 0,
4368 GFP_KERNEL);
4369 }
4370 brcmf_link_down(ifp->vif);
4371 brcmf_init_prof(ndev_to_prof(ndev));
4372 if (ndev != cfg_to_ndev(cfg))
4373 complete(&cfg->vif_disabled);
4374 } else if (brcmf_is_nonetwork(cfg, e)) {
4375 if (brcmf_is_ibssmode(ifp->vif))
4376 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4377 &ifp->vif->sme_state);
4378 else
4379 brcmf_bss_connect_done(cfg, ndev, e, false);
4380 }
4381
4382 return err;
4383}
4384
4385static s32
4386brcmf_notify_roaming_status(struct brcmf_if *ifp,
4387 const struct brcmf_event_msg *e, void *data)
4388{
4389 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4390 s32 err = 0;
4391 u32 event = e->event_code;
4392 u32 status = e->status;
4393
4394 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4395 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4396 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4397 else
4398 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4399 }
4400
4401 return err;
4402}
4403
4404static s32
4405brcmf_notify_mic_status(struct brcmf_if *ifp,
4406 const struct brcmf_event_msg *e, void *data)
4407{
4408 u16 flags = e->flags;
4409 enum nl80211_key_type key_type;
4410
4411 if (flags & BRCMF_EVENT_MSG_GROUP)
4412 key_type = NL80211_KEYTYPE_GROUP;
4413 else
4414 key_type = NL80211_KEYTYPE_PAIRWISE;
4415
4416 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4417 NULL, GFP_KERNEL);
4418
4419 return 0;
4420}
4421
4422static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4423 const struct brcmf_event_msg *e, void *data)
4424{
4425 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4426 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4427 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4428 struct brcmf_cfg80211_vif *vif;
4429
4430 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4431 ifevent->action, ifevent->flags, ifevent->ifidx,
4432 ifevent->bssidx);
4433
4434 mutex_lock(&event->vif_event_lock);
4435 event->action = ifevent->action;
4436 vif = event->vif;
4437
4438 switch (ifevent->action) {
4439 case BRCMF_E_IF_ADD:
4440 /* waiting process may have timed out */
4441 if (!cfg->vif_event.vif)
4442 return -EBADF;
4443
4444 ifp->vif = vif;
4445 vif->ifp = ifp;
4446 vif->wdev.netdev = ifp->ndev;
4447 ifp->ndev->ieee80211_ptr = &vif->wdev;
4448 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4449 mutex_unlock(&event->vif_event_lock);
4450 wake_up(&event->vif_wq);
4451
4452 /* waiting process need to set the netdev name */
4453 wait_for_completion(&event->vif_complete);
4454 return brcmf_net_attach(ifp);
4455
4456 case BRCMF_E_IF_DEL:
4457 ifp->vif = NULL;
4458 mutex_unlock(&event->vif_event_lock);
4459 /* event may not be upon user request */
4460 if (brcmf_cfg80211_vif_event_armed(cfg))
4461 wake_up(&event->vif_wq);
4462 return 0;
4463
4464 case BRCMF_E_IF_CHANGE:
4465 mutex_unlock(&event->vif_event_lock);
4466 wake_up(&event->vif_wq);
4467 return 0;
4468
4469 default:
4470 mutex_unlock(&event->vif_event_lock);
4471 break;
4472 }
4473 return -EINVAL;
4474}
4475
4476static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4477{
4478 conf->frag_threshold = (u32)-1;
4479 conf->rts_threshold = (u32)-1;
4480 conf->retry_short = (u32)-1;
4481 conf->retry_long = (u32)-1;
4482 conf->tx_power = -1;
4483}
4484
4485static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4486{
4487 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4488 brcmf_notify_connect_status);
4489 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4490 brcmf_notify_connect_status);
4491 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4492 brcmf_notify_connect_status);
4493 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4494 brcmf_notify_connect_status);
4495 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4496 brcmf_notify_connect_status);
4497 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4498 brcmf_notify_connect_status);
4499 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4500 brcmf_notify_roaming_status);
4501 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4502 brcmf_notify_mic_status);
4503 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4504 brcmf_notify_connect_status);
4505 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4506 brcmf_notify_sched_scan_results);
4507 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4508 brcmf_notify_vif_event);
4509 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4510 brcmf_notify_rx_mgmt_p2p_probereq);
4511 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4512 brcmf_p2p_notify_listen_complete);
4513}
4514
4515static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4516{
4517 kfree(cfg->conf);
4518 cfg->conf = NULL;
4519 kfree(cfg->escan_ioctl_buf);
4520 cfg->escan_ioctl_buf = NULL;
4521 kfree(cfg->extra_buf);
4522 cfg->extra_buf = NULL;
4523 kfree(cfg->pmk_list);
4524 cfg->pmk_list = NULL;
4525}
4526
4527static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4528{
4529 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4530 if (!cfg->conf)
4531 goto init_priv_mem_out;
4532 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4533 if (!cfg->escan_ioctl_buf)
4534 goto init_priv_mem_out;
4535 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4536 if (!cfg->extra_buf)
4537 goto init_priv_mem_out;
4538 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4539 if (!cfg->pmk_list)
4540 goto init_priv_mem_out;
4541
4542 return 0;
4543
4544init_priv_mem_out:
4545 brcmf_deinit_priv_mem(cfg);
4546
4547 return -ENOMEM;
4548}
4549
4550static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4551{
4552 s32 err = 0;
4553
4554 cfg->scan_request = NULL;
4555 cfg->pwr_save = true;
4556 cfg->roam_on = true; /* roam on & off switch.
4557 we enable roam per default */
4558 cfg->active_scan = true; /* we do active scan for
4559 specific scan per default */
4560 cfg->dongle_up = false; /* dongle is not up yet */
4561 err = brcmf_init_priv_mem(cfg);
4562 if (err)
4563 return err;
4564 brcmf_register_event_handlers(cfg);
4565 mutex_init(&cfg->usr_sync);
4566 brcmf_init_escan(cfg);
4567 brcmf_init_conf(cfg->conf);
4568 init_completion(&cfg->vif_disabled);
4569 return err;
4570}
4571
4572static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4573{
4574 cfg->dongle_up = false; /* dongle down */
4575 brcmf_abort_scanning(cfg);
4576 brcmf_deinit_priv_mem(cfg);
4577}
4578
4579static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4580{
4581 init_waitqueue_head(&event->vif_wq);
4582 init_completion(&event->vif_complete);
4583 mutex_init(&event->vif_event_lock);
4584}
4585
4586struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
4587 struct device *busdev)
4588{
4589 struct net_device *ndev = drvr->iflist[0]->ndev;
4590 struct brcmf_cfg80211_info *cfg;
4591 struct wiphy *wiphy;
4592 struct brcmf_cfg80211_vif *vif;
4593 struct brcmf_if *ifp;
4594 s32 err = 0;
4595
4596 if (!ndev) {
4597 brcmf_err("ndev is invalid\n");
4598 return NULL;
4599 }
4600
4601 ifp = netdev_priv(ndev);
4602 wiphy = brcmf_setup_wiphy(busdev);
4603 if (IS_ERR(wiphy))
4604 return NULL;
4605
4606 cfg = wiphy_priv(wiphy);
4607 cfg->wiphy = wiphy;
4608 cfg->pub = drvr;
4609 init_vif_event(&cfg->vif_event);
4610 INIT_LIST_HEAD(&cfg->vif_list);
4611
4612 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
4613 if (IS_ERR(vif)) {
4614 wiphy_free(wiphy);
4615 return NULL;
4616 }
4617
4618 vif->ifp = ifp;
4619 vif->wdev.netdev = ndev;
4620 ndev->ieee80211_ptr = &vif->wdev;
4621 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
4622
4623 err = wl_init_priv(cfg);
4624 if (err) {
4625 brcmf_err("Failed to init iwm_priv (%d)\n", err);
4626 goto cfg80211_attach_out;
4627 }
4628 brcmf_p2p_attach(cfg);
4629
4630 ifp->vif = vif;
4631 return cfg;
4632
4633cfg80211_attach_out:
4634 brcmf_free_vif(vif);
4635 wiphy_free(wiphy);
4636 return NULL;
4637}
4638
4639void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
4640{
4641 struct brcmf_cfg80211_vif *vif;
4642 struct brcmf_cfg80211_vif *tmp;
4643
4644 wl_deinit_priv(cfg);
4645 list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
4646 brcmf_free_vif(vif);
4647 }
4648}
4649
4650static s32
4651brcmf_dongle_roam(struct brcmf_if *ifp, u32 roamvar, u32 bcn_timeout)
4652{
4653 s32 err = 0;
4654 __le32 roamtrigger[2];
4655 __le32 roam_delta[2];
4656
4657 /*
4658 * Setup timeout if Beacons are lost and roam is
4659 * off to report link down
4660 */
4661 if (roamvar) {
4662 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4663 if (err) {
4664 brcmf_err("bcn_timeout error (%d)\n", err);
4665 goto dongle_rom_out;
4666 }
4667 }
4668
4669 /*
4670 * Enable/Disable built-in roaming to allow supplicant
4671 * to take care of roaming
4672 */
4673 brcmf_dbg(INFO, "Internal Roaming = %s\n", roamvar ? "Off" : "On");
4674 err = brcmf_fil_iovar_int_set(ifp, "roam_off", roamvar);
4675 if (err) {
4676 brcmf_err("roam_off error (%d)\n", err);
4677 goto dongle_rom_out;
4678 }
4679
4680 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4681 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4682 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4683 (void *)roamtrigger, sizeof(roamtrigger));
4684 if (err) {
4685 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4686 goto dongle_rom_out;
4687 }
4688
4689 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4690 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4691 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4692 (void *)roam_delta, sizeof(roam_delta));
4693 if (err) {
4694 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4695 goto dongle_rom_out;
4696 }
4697
4698dongle_rom_out:
4699 return err;
4700}
4701
4702static s32
4703brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4704 s32 scan_unassoc_time, s32 scan_passive_time)
4705{
4706 s32 err = 0;
4707
4708 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4709 scan_assoc_time);
4710 if (err) {
4711 if (err == -EOPNOTSUPP)
4712 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4713 else
4714 brcmf_err("Scan assoc time error (%d)\n", err);
4715 goto dongle_scantime_out;
4716 }
4717 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4718 scan_unassoc_time);
4719 if (err) {
4720 if (err == -EOPNOTSUPP)
4721 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4722 else
4723 brcmf_err("Scan unassoc time error (%d)\n", err);
4724 goto dongle_scantime_out;
4725 }
4726
4727 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4728 scan_passive_time);
4729 if (err) {
4730 if (err == -EOPNOTSUPP)
4731 brcmf_dbg(INFO, "Scan passive time is not supported\n");
4732 else
4733 brcmf_err("Scan passive time error (%d)\n", err);
4734 goto dongle_scantime_out;
4735 }
4736
4737dongle_scantime_out:
4738 return err;
4739}
4740
4741static s32 wl_update_wiphybands(struct brcmf_cfg80211_info *cfg)
4742{
4743 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4744 struct wiphy *wiphy;
4745 s32 phy_list;
4746 s8 phy;
4747 s32 err = 0;
4748
4749 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_PHYLIST,
4750 &phy_list, sizeof(phy_list));
4751 if (err) {
4752 brcmf_err("error (%d)\n", err);
4753 return err;
4754 }
4755
4756 phy = ((char *)&phy_list)[0];
4757 brcmf_dbg(INFO, "%c phy\n", phy);
4758 if (phy == 'n' || phy == 'a') {
4759 wiphy = cfg_to_wiphy(cfg);
4760 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
4761 }
4762
4763 return err;
4764}
4765
4766static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
4767{
4768 return wl_update_wiphybands(cfg);
4769}
4770
4771static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
4772{
4773 struct net_device *ndev;
4774 struct wireless_dev *wdev;
4775 struct brcmf_if *ifp;
4776 s32 power_mode;
4777 s32 err = 0;
4778
4779 if (cfg->dongle_up)
4780 return err;
4781
4782 ndev = cfg_to_ndev(cfg);
4783 wdev = ndev->ieee80211_ptr;
4784 ifp = netdev_priv(ndev);
4785
4786 /* make sure RF is ready for work */
4787 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
4788
4789 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
4790 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
4791
4792 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
4793 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
4794 if (err)
4795 goto default_conf_out;
4796 brcmf_dbg(INFO, "power save set to %s\n",
4797 (power_mode ? "enabled" : "disabled"));
4798
4799 err = brcmf_dongle_roam(ifp, (cfg->roam_on ? 0 : 1), WL_BEACON_TIMEOUT);
4800 if (err)
4801 goto default_conf_out;
4802 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
4803 NULL, NULL);
4804 if (err)
4805 goto default_conf_out;
4806 err = brcmf_dongle_probecap(cfg);
4807 if (err)
4808 goto default_conf_out;
4809
4810 cfg->dongle_up = true;
4811default_conf_out:
4812
4813 return err;
4814
4815}
4816
4817static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
4818{
4819 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
4820
4821 return brcmf_config_dongle(ifp->drvr->config);
4822}
4823
4824static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
4825{
4826 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4827
4828 /*
4829 * While going down, if associated with AP disassociate
4830 * from AP to save power
4831 */
4832 if (check_vif_up(ifp->vif)) {
4833 brcmf_link_down(ifp->vif);
4834
4835 /* Make sure WPA_Supplicant receives all the event
4836 generated due to DISASSOC call to the fw to keep
4837 the state fw and WPA_Supplicant state consistent
4838 */
4839 brcmf_delay(500);
4840 }
4841
4842 brcmf_abort_scanning(cfg);
4843 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
4844
4845 return 0;
4846}
4847
4848s32 brcmf_cfg80211_up(struct net_device *ndev)
4849{
4850 struct brcmf_if *ifp = netdev_priv(ndev);
4851 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4852 s32 err = 0;
4853
4854 mutex_lock(&cfg->usr_sync);
4855 err = __brcmf_cfg80211_up(ifp);
4856 mutex_unlock(&cfg->usr_sync);
4857
4858 return err;
4859}
4860
4861s32 brcmf_cfg80211_down(struct net_device *ndev)
4862{
4863 struct brcmf_if *ifp = netdev_priv(ndev);
4864 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4865 s32 err = 0;
4866
4867 mutex_lock(&cfg->usr_sync);
4868 err = __brcmf_cfg80211_down(ifp);
4869 mutex_unlock(&cfg->usr_sync);
4870
4871 return err;
4872}
4873
4874u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state)
4875{
4876 struct brcmf_cfg80211_vif *vif;
4877 bool result = 0;
4878
4879 list_for_each_entry(vif, &cfg->vif_list, list) {
4880 if (test_bit(state, &vif->sme_state))
4881 result++;
4882 }
4883 return result;
4884}
4885
4886static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
4887 u8 action)
4888{
4889 u8 evt_action;
4890
4891 mutex_lock(&event->vif_event_lock);
4892 evt_action = event->action;
4893 mutex_unlock(&event->vif_event_lock);
4894 return evt_action == action;
4895}
4896
4897void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
4898 struct brcmf_cfg80211_vif *vif)
4899{
4900 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4901
4902 mutex_lock(&event->vif_event_lock);
4903 event->vif = vif;
4904 event->action = 0;
4905 mutex_unlock(&event->vif_event_lock);
4906}
4907
4908bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
4909{
4910 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4911 bool armed;
4912
4913 mutex_lock(&event->vif_event_lock);
4914 armed = event->vif != NULL;
4915 mutex_unlock(&event->vif_event_lock);
4916
4917 return armed;
4918}
4919int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
4920 u8 action, ulong timeout)
4921{
4922 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4923
4924 return wait_event_timeout(event->vif_wq,
4925 vif_event_equals(event, action), timeout);
4926}
4927
4928void brcmf_cfg80211_vif_complete(struct brcmf_cfg80211_info *cfg)
4929{
4930 complete(&cfg->vif_event.vif_complete);
4931}
Linux kernel - Deliverables
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