1 /*
2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
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
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/etherdevice.h>
18 #include "wil6210.h"
19 #include "wmi.h"
20
21 #define WIL_MAX_ROC_DURATION_MS 5000
22
23 #define CHAN60G(_channel, _flags) { \
24 .band = NL80211_BAND_60GHZ, \
25 .center_freq = 56160 + (2160 * (_channel)), \
26 .hw_value = (_channel), \
27 .flags = (_flags), \
28 .max_antenna_gain = 0, \
29 .max_power = 40, \
30 }
31
32 static struct ieee80211_channel wil_60ghz_channels[] = {
33 CHAN60G(1, 0),
34 CHAN60G(2, 0),
35 CHAN60G(3, 0),
36 /* channel 4 not supported yet */
37 };
38
39 static struct ieee80211_supported_band wil_band_60ghz = {
40 .channels = wil_60ghz_channels,
41 .n_channels = ARRAY_SIZE(wil_60ghz_channels),
42 .ht_cap = {
43 .ht_supported = true,
44 .cap = 0, /* TODO */
45 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
46 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
47 .mcs = {
48 /* MCS 1..12 - SC PHY */
49 .rx_mask = {0xfe, 0x1f}, /* 1..12 */
50 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
51 },
52 },
53 };
54
55 static const struct ieee80211_txrx_stypes
56 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
57 [NL80211_IFTYPE_STATION] = {
58 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
59 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
60 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
61 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
62 },
63 [NL80211_IFTYPE_AP] = {
64 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
65 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
66 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
67 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
68 },
69 [NL80211_IFTYPE_P2P_CLIENT] = {
70 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
71 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
72 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
73 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
74 },
75 [NL80211_IFTYPE_P2P_GO] = {
76 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
77 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
78 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
79 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
80 },
81 [NL80211_IFTYPE_P2P_DEVICE] = {
82 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
83 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
84 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
85 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
86 },
87 };
88
89 static const u32 wil_cipher_suites[] = {
90 WLAN_CIPHER_SUITE_GCMP,
91 };
92
93 static const char * const key_usage_str[] = {
94 [WMI_KEY_USE_PAIRWISE] = "PTK",
95 [WMI_KEY_USE_RX_GROUP] = "RX_GTK",
96 [WMI_KEY_USE_TX_GROUP] = "TX_GTK",
97 };
98
wil_iftype_nl2wmi(enum nl80211_iftype type)99 int wil_iftype_nl2wmi(enum nl80211_iftype type)
100 {
101 static const struct {
102 enum nl80211_iftype nl;
103 enum wmi_network_type wmi;
104 } __nl2wmi[] = {
105 {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC},
106 {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA},
107 {NL80211_IFTYPE_AP, WMI_NETTYPE_AP},
108 {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P},
109 {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P},
110 {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */
111 };
112 uint i;
113
114 for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
115 if (__nl2wmi[i].nl == type)
116 return __nl2wmi[i].wmi;
117 }
118
119 return -EOPNOTSUPP;
120 }
121
wil_cid_fill_sinfo(struct wil6210_priv * wil,int cid,struct station_info * sinfo)122 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
123 struct station_info *sinfo)
124 {
125 struct wmi_notify_req_cmd cmd = {
126 .cid = cid,
127 .interval_usec = 0,
128 };
129 struct {
130 struct wmi_cmd_hdr wmi;
131 struct wmi_notify_req_done_event evt;
132 } __packed reply;
133 struct wil_net_stats *stats = &wil->sta[cid].stats;
134 int rc;
135
136 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
137 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
138 if (rc)
139 return rc;
140
141 wil_dbg_wmi(wil, "Link status for CID %d: {\n"
142 " MCS %d TSF 0x%016llx\n"
143 " BF status 0x%08x SNR 0x%08x SQI %d%%\n"
144 " Tx Tpt %d goodput %d Rx goodput %d\n"
145 " Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
146 cid, le16_to_cpu(reply.evt.bf_mcs),
147 le64_to_cpu(reply.evt.tsf), reply.evt.status,
148 le32_to_cpu(reply.evt.snr_val),
149 reply.evt.sqi,
150 le32_to_cpu(reply.evt.tx_tpt),
151 le32_to_cpu(reply.evt.tx_goodput),
152 le32_to_cpu(reply.evt.rx_goodput),
153 le16_to_cpu(reply.evt.my_rx_sector),
154 le16_to_cpu(reply.evt.my_tx_sector),
155 le16_to_cpu(reply.evt.other_rx_sector),
156 le16_to_cpu(reply.evt.other_tx_sector));
157
158 sinfo->generation = wil->sinfo_gen;
159
160 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
161 BIT(NL80211_STA_INFO_TX_BYTES) |
162 BIT(NL80211_STA_INFO_RX_PACKETS) |
163 BIT(NL80211_STA_INFO_TX_PACKETS) |
164 BIT(NL80211_STA_INFO_RX_BITRATE) |
165 BIT(NL80211_STA_INFO_TX_BITRATE) |
166 BIT(NL80211_STA_INFO_RX_DROP_MISC) |
167 BIT(NL80211_STA_INFO_TX_FAILED);
168
169 sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
170 sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
171 sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
172 sinfo->rxrate.mcs = stats->last_mcs_rx;
173 sinfo->rx_bytes = stats->rx_bytes;
174 sinfo->rx_packets = stats->rx_packets;
175 sinfo->rx_dropped_misc = stats->rx_dropped;
176 sinfo->tx_bytes = stats->tx_bytes;
177 sinfo->tx_packets = stats->tx_packets;
178 sinfo->tx_failed = stats->tx_errors;
179
180 if (test_bit(wil_status_fwconnected, wil->status)) {
181 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
182 sinfo->signal = reply.evt.sqi;
183 }
184
185 return rc;
186 }
187
wil_cfg80211_get_station(struct wiphy * wiphy,struct net_device * ndev,const u8 * mac,struct station_info * sinfo)188 static int wil_cfg80211_get_station(struct wiphy *wiphy,
189 struct net_device *ndev,
190 const u8 *mac, struct station_info *sinfo)
191 {
192 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
193 int rc;
194
195 int cid = wil_find_cid(wil, mac);
196
197 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
198 if (cid < 0)
199 return cid;
200
201 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
202
203 return rc;
204 }
205
206 /*
207 * Find @idx-th active STA for station dump.
208 */
wil_find_cid_by_idx(struct wil6210_priv * wil,int idx)209 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
210 {
211 int i;
212
213 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
214 if (wil->sta[i].status == wil_sta_unused)
215 continue;
216 if (idx == 0)
217 return i;
218 idx--;
219 }
220
221 return -ENOENT;
222 }
223
wil_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)224 static int wil_cfg80211_dump_station(struct wiphy *wiphy,
225 struct net_device *dev, int idx,
226 u8 *mac, struct station_info *sinfo)
227 {
228 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
229 int rc;
230 int cid = wil_find_cid_by_idx(wil, idx);
231
232 if (cid < 0)
233 return -ENOENT;
234
235 ether_addr_copy(mac, wil->sta[cid].addr);
236 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
237
238 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
239
240 return rc;
241 }
242
243 static struct wireless_dev *
wil_cfg80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,u32 * flags,struct vif_params * params)244 wil_cfg80211_add_iface(struct wiphy *wiphy, const char *name,
245 unsigned char name_assign_type,
246 enum nl80211_iftype type,
247 u32 *flags, struct vif_params *params)
248 {
249 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
250 struct net_device *ndev = wil_to_ndev(wil);
251 struct wireless_dev *p2p_wdev;
252
253 wil_dbg_misc(wil, "%s()\n", __func__);
254
255 if (type != NL80211_IFTYPE_P2P_DEVICE) {
256 wil_err(wil, "%s: unsupported iftype %d\n", __func__, type);
257 return ERR_PTR(-EINVAL);
258 }
259
260 if (wil->p2p_wdev) {
261 wil_err(wil, "%s: P2P_DEVICE interface already created\n",
262 __func__);
263 return ERR_PTR(-EINVAL);
264 }
265
266 p2p_wdev = kzalloc(sizeof(*p2p_wdev), GFP_KERNEL);
267 if (!p2p_wdev)
268 return ERR_PTR(-ENOMEM);
269
270 p2p_wdev->iftype = type;
271 p2p_wdev->wiphy = wiphy;
272 /* use our primary ethernet address */
273 ether_addr_copy(p2p_wdev->address, ndev->perm_addr);
274
275 wil->p2p_wdev = p2p_wdev;
276
277 return p2p_wdev;
278 }
279
wil_cfg80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)280 static int wil_cfg80211_del_iface(struct wiphy *wiphy,
281 struct wireless_dev *wdev)
282 {
283 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
284
285 wil_dbg_misc(wil, "%s()\n", __func__);
286
287 if (wdev != wil->p2p_wdev) {
288 wil_err(wil, "%s: delete of incorrect interface 0x%p\n",
289 __func__, wdev);
290 return -EINVAL;
291 }
292
293 wil_p2p_wdev_free(wil);
294
295 return 0;
296 }
297
wil_cfg80211_change_iface(struct wiphy * wiphy,struct net_device * ndev,enum nl80211_iftype type,u32 * flags,struct vif_params * params)298 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
299 struct net_device *ndev,
300 enum nl80211_iftype type, u32 *flags,
301 struct vif_params *params)
302 {
303 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
304 struct wireless_dev *wdev = wil_to_wdev(wil);
305 int rc;
306
307 wil_dbg_misc(wil, "%s() type=%d\n", __func__, type);
308
309 if (netif_running(wil_to_ndev(wil)) && !wil_is_recovery_blocked(wil)) {
310 wil_dbg_misc(wil, "interface is up. resetting...\n");
311 mutex_lock(&wil->mutex);
312 __wil_down(wil);
313 rc = __wil_up(wil);
314 mutex_unlock(&wil->mutex);
315
316 if (rc)
317 return rc;
318 }
319
320 switch (type) {
321 case NL80211_IFTYPE_STATION:
322 case NL80211_IFTYPE_AP:
323 case NL80211_IFTYPE_P2P_CLIENT:
324 case NL80211_IFTYPE_P2P_GO:
325 break;
326 case NL80211_IFTYPE_MONITOR:
327 if (flags)
328 wil->monitor_flags = *flags;
329 else
330 wil->monitor_flags = 0;
331
332 break;
333 default:
334 return -EOPNOTSUPP;
335 }
336
337 wdev->iftype = type;
338
339 return 0;
340 }
341
wil_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)342 static int wil_cfg80211_scan(struct wiphy *wiphy,
343 struct cfg80211_scan_request *request)
344 {
345 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
346 struct wireless_dev *wdev = request->wdev;
347 struct {
348 struct wmi_start_scan_cmd cmd;
349 u16 chnl[4];
350 } __packed cmd;
351 uint i, n;
352 int rc;
353
354 wil_dbg_misc(wil, "%s(), wdev=0x%p iftype=%d\n",
355 __func__, wdev, wdev->iftype);
356
357 mutex_lock(&wil->p2p_wdev_mutex);
358 if (wil->scan_request) {
359 wil_err(wil, "Already scanning\n");
360 mutex_unlock(&wil->p2p_wdev_mutex);
361 return -EAGAIN;
362 }
363 mutex_unlock(&wil->p2p_wdev_mutex);
364
365 /* check we are client side */
366 switch (wdev->iftype) {
367 case NL80211_IFTYPE_STATION:
368 case NL80211_IFTYPE_P2P_CLIENT:
369 case NL80211_IFTYPE_P2P_DEVICE:
370 break;
371 default:
372 return -EOPNOTSUPP;
373 }
374
375 /* FW don't support scan after connection attempt */
376 if (test_bit(wil_status_dontscan, wil->status)) {
377 wil_err(wil, "Can't scan now\n");
378 return -EBUSY;
379 }
380
381 /* social scan on P2P_DEVICE is handled as p2p search */
382 if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
383 wil_p2p_is_social_scan(request)) {
384 if (!wil->p2p.p2p_dev_started) {
385 wil_err(wil, "P2P search requested on stopped P2P device\n");
386 return -EIO;
387 }
388 wil->scan_request = request;
389 wil->radio_wdev = wdev;
390 rc = wil_p2p_search(wil, request);
391 if (rc) {
392 wil->radio_wdev = wil_to_wdev(wil);
393 wil->scan_request = NULL;
394 }
395 return rc;
396 }
397
398 (void)wil_p2p_stop_discovery(wil);
399
400 wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
401 wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
402
403 for (i = 0; i < request->n_ssids; i++) {
404 wil_dbg_misc(wil, "SSID[%d]", i);
405 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
406 request->ssids[i].ssid,
407 request->ssids[i].ssid_len);
408 }
409
410 if (request->n_ssids)
411 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
412 request->ssids[0].ssid);
413 else
414 rc = wmi_set_ssid(wil, 0, NULL);
415
416 if (rc) {
417 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
418 return rc;
419 }
420
421 wil->scan_request = request;
422 mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
423
424 memset(&cmd, 0, sizeof(cmd));
425 cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
426 cmd.cmd.num_channels = 0;
427 n = min(request->n_channels, 4U);
428 for (i = 0; i < n; i++) {
429 int ch = request->channels[i]->hw_value;
430
431 if (ch == 0) {
432 wil_err(wil,
433 "Scan requested for unknown frequency %dMhz\n",
434 request->channels[i]->center_freq);
435 continue;
436 }
437 /* 0-based channel indexes */
438 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
439 wil_dbg_misc(wil, "Scan for ch %d : %d MHz\n", ch,
440 request->channels[i]->center_freq);
441 }
442
443 if (request->ie_len)
444 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
445 request->ie, request->ie_len);
446 else
447 wil_dbg_misc(wil, "Scan has no IE's\n");
448
449 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
450 if (rc)
451 goto out;
452
453 if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
454 cmd.cmd.discovery_mode = 1;
455 wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
456 }
457
458 wil->radio_wdev = wdev;
459 rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
460 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
461
462 out:
463 if (rc) {
464 del_timer_sync(&wil->scan_timer);
465 wil->radio_wdev = wil_to_wdev(wil);
466 wil->scan_request = NULL;
467 }
468
469 return rc;
470 }
471
wil_print_crypto(struct wil6210_priv * wil,struct cfg80211_crypto_settings * c)472 static void wil_print_crypto(struct wil6210_priv *wil,
473 struct cfg80211_crypto_settings *c)
474 {
475 int i, n;
476
477 wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
478 c->wpa_versions, c->cipher_group);
479 wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
480 n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
481 for (i = 0; i < n; i++)
482 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
483 c->ciphers_pairwise[i]);
484 wil_dbg_misc(wil, "}\n");
485 wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
486 n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
487 for (i = 0; i < n; i++)
488 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
489 c->akm_suites[i]);
490 wil_dbg_misc(wil, "}\n");
491 wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
492 c->control_port, be16_to_cpu(c->control_port_ethertype),
493 c->control_port_no_encrypt);
494 }
495
wil_print_connect_params(struct wil6210_priv * wil,struct cfg80211_connect_params * sme)496 static void wil_print_connect_params(struct wil6210_priv *wil,
497 struct cfg80211_connect_params *sme)
498 {
499 wil_info(wil, "Connecting to:\n");
500 if (sme->channel) {
501 wil_info(wil, " Channel: %d freq %d\n",
502 sme->channel->hw_value, sme->channel->center_freq);
503 }
504 if (sme->bssid)
505 wil_info(wil, " BSSID: %pM\n", sme->bssid);
506 if (sme->ssid)
507 print_hex_dump(KERN_INFO, " SSID: ", DUMP_PREFIX_OFFSET,
508 16, 1, sme->ssid, sme->ssid_len, true);
509 wil_info(wil, " Privacy: %s\n", sme->privacy ? "secure" : "open");
510 wil_info(wil, " PBSS: %d\n", sme->pbss);
511 wil_print_crypto(wil, &sme->crypto);
512 }
513
wil_cfg80211_connect(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_connect_params * sme)514 static int wil_cfg80211_connect(struct wiphy *wiphy,
515 struct net_device *ndev,
516 struct cfg80211_connect_params *sme)
517 {
518 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
519 struct cfg80211_bss *bss;
520 struct wmi_connect_cmd conn;
521 const u8 *ssid_eid;
522 const u8 *rsn_eid;
523 int ch;
524 int rc = 0;
525 enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
526
527 wil_dbg_misc(wil, "%s()\n", __func__);
528 wil_print_connect_params(wil, sme);
529
530 if (test_bit(wil_status_fwconnecting, wil->status) ||
531 test_bit(wil_status_fwconnected, wil->status))
532 return -EALREADY;
533
534 if (sme->ie_len > WMI_MAX_IE_LEN) {
535 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
536 return -ERANGE;
537 }
538
539 rsn_eid = sme->ie ?
540 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
541 NULL;
542 if (sme->privacy && !rsn_eid)
543 wil_info(wil, "WSC connection\n");
544
545 if (sme->pbss)
546 bss_type = IEEE80211_BSS_TYPE_PBSS;
547
548 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
549 sme->ssid, sme->ssid_len,
550 bss_type, IEEE80211_PRIVACY_ANY);
551 if (!bss) {
552 wil_err(wil, "Unable to find BSS\n");
553 return -ENOENT;
554 }
555
556 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
557 if (!ssid_eid) {
558 wil_err(wil, "No SSID\n");
559 rc = -ENOENT;
560 goto out;
561 }
562 wil->privacy = sme->privacy;
563
564 if (wil->privacy) {
565 /* For secure assoc, remove old keys */
566 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
567 WMI_KEY_USE_PAIRWISE);
568 if (rc) {
569 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
570 goto out;
571 }
572 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
573 WMI_KEY_USE_RX_GROUP);
574 if (rc) {
575 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
576 goto out;
577 }
578 }
579
580 /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
581 * elements. Send it also in case it's empty, to erase previously set
582 * ies in FW.
583 */
584 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
585 if (rc)
586 goto out;
587
588 /* WMI_CONNECT_CMD */
589 memset(&conn, 0, sizeof(conn));
590 switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
591 case WLAN_CAPABILITY_DMG_TYPE_AP:
592 conn.network_type = WMI_NETTYPE_INFRA;
593 break;
594 case WLAN_CAPABILITY_DMG_TYPE_PBSS:
595 conn.network_type = WMI_NETTYPE_P2P;
596 break;
597 default:
598 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
599 bss->capability);
600 goto out;
601 }
602 if (wil->privacy) {
603 if (rsn_eid) { /* regular secure connection */
604 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
605 conn.auth_mode = WMI_AUTH_WPA2_PSK;
606 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
607 conn.pairwise_crypto_len = 16;
608 conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
609 conn.group_crypto_len = 16;
610 } else { /* WSC */
611 conn.dot11_auth_mode = WMI_AUTH11_WSC;
612 conn.auth_mode = WMI_AUTH_NONE;
613 }
614 } else { /* insecure connection */
615 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
616 conn.auth_mode = WMI_AUTH_NONE;
617 }
618
619 conn.ssid_len = min_t(u8, ssid_eid[1], 32);
620 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
621
622 ch = bss->channel->hw_value;
623 if (ch == 0) {
624 wil_err(wil, "BSS at unknown frequency %dMhz\n",
625 bss->channel->center_freq);
626 rc = -EOPNOTSUPP;
627 goto out;
628 }
629 conn.channel = ch - 1;
630
631 ether_addr_copy(conn.bssid, bss->bssid);
632 ether_addr_copy(conn.dst_mac, bss->bssid);
633
634 set_bit(wil_status_fwconnecting, wil->status);
635
636 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
637 if (rc == 0) {
638 netif_carrier_on(ndev);
639 /* Connect can take lots of time */
640 mod_timer(&wil->connect_timer,
641 jiffies + msecs_to_jiffies(2000));
642 } else {
643 clear_bit(wil_status_fwconnecting, wil->status);
644 }
645
646 out:
647 cfg80211_put_bss(wiphy, bss);
648
649 return rc;
650 }
651
wil_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * ndev,u16 reason_code)652 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
653 struct net_device *ndev,
654 u16 reason_code)
655 {
656 int rc;
657 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
658
659 wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
660
661 if (!(test_bit(wil_status_fwconnecting, wil->status) ||
662 test_bit(wil_status_fwconnected, wil->status))) {
663 wil_err(wil, "%s: Disconnect was called while disconnected\n",
664 __func__);
665 return 0;
666 }
667
668 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
669 WMI_DISCONNECT_EVENTID, NULL, 0,
670 WIL6210_DISCONNECT_TO_MS);
671 if (rc)
672 wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
673
674 return rc;
675 }
676
wil_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)677 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
678 struct cfg80211_mgmt_tx_params *params,
679 u64 *cookie)
680 {
681 const u8 *buf = params->buf;
682 size_t len = params->len;
683 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
684 int rc;
685 bool tx_status = false;
686 struct ieee80211_mgmt *mgmt_frame = (void *)buf;
687 struct wmi_sw_tx_req_cmd *cmd;
688 struct {
689 struct wmi_cmd_hdr wmi;
690 struct wmi_sw_tx_complete_event evt;
691 } __packed evt;
692
693 /* Note, currently we do not support the "wait" parameter, user-space
694 * must call remain_on_channel before mgmt_tx or listen on a channel
695 * another way (AP/PCP or connected station)
696 * in addition we need to check if specified "chan" argument is
697 * different from currently "listened" channel and fail if it is.
698 */
699
700 wil_dbg_misc(wil, "%s()\n", __func__);
701 print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
702
703 cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
704 if (!cmd) {
705 rc = -ENOMEM;
706 goto out;
707 }
708
709 memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
710 cmd->len = cpu_to_le16(len);
711 memcpy(cmd->payload, buf, len);
712
713 rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
714 WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
715 if (rc == 0)
716 tx_status = !evt.evt.status;
717
718 kfree(cmd);
719 out:
720 cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
721 tx_status, GFP_KERNEL);
722 return rc;
723 }
724
wil_cfg80211_set_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)725 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
726 struct cfg80211_chan_def *chandef)
727 {
728 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
729 struct wireless_dev *wdev = wil_to_wdev(wil);
730
731 wdev->preset_chandef = *chandef;
732
733 return 0;
734 }
735
wil_detect_key_usage(struct wil6210_priv * wil,bool pairwise)736 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
737 bool pairwise)
738 {
739 struct wireless_dev *wdev = wil_to_wdev(wil);
740 enum wmi_key_usage rc;
741
742 if (pairwise) {
743 rc = WMI_KEY_USE_PAIRWISE;
744 } else {
745 switch (wdev->iftype) {
746 case NL80211_IFTYPE_STATION:
747 case NL80211_IFTYPE_P2P_CLIENT:
748 rc = WMI_KEY_USE_RX_GROUP;
749 break;
750 case NL80211_IFTYPE_AP:
751 case NL80211_IFTYPE_P2P_GO:
752 rc = WMI_KEY_USE_TX_GROUP;
753 break;
754 default:
755 /* TODO: Rx GTK or Tx GTK? */
756 wil_err(wil, "Can't determine GTK type\n");
757 rc = WMI_KEY_USE_RX_GROUP;
758 break;
759 }
760 }
761 wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
762
763 return rc;
764 }
765
766 static struct wil_sta_info *
wil_find_sta_by_key_usage(struct wil6210_priv * wil,enum wmi_key_usage key_usage,const u8 * mac_addr)767 wil_find_sta_by_key_usage(struct wil6210_priv *wil,
768 enum wmi_key_usage key_usage, const u8 *mac_addr)
769 {
770 int cid = -EINVAL;
771
772 if (key_usage == WMI_KEY_USE_TX_GROUP)
773 return NULL; /* not needed */
774
775 /* supplicant provides Rx group key in STA mode with NULL MAC address */
776 if (mac_addr)
777 cid = wil_find_cid(wil, mac_addr);
778 else if (key_usage == WMI_KEY_USE_RX_GROUP)
779 cid = wil_find_cid_by_idx(wil, 0);
780 if (cid < 0) {
781 wil_err(wil, "No CID for %pM %s\n", mac_addr,
782 key_usage_str[key_usage]);
783 return ERR_PTR(cid);
784 }
785
786 return &wil->sta[cid];
787 }
788
wil_set_crypto_rx(u8 key_index,enum wmi_key_usage key_usage,struct wil_sta_info * cs,struct key_params * params)789 static void wil_set_crypto_rx(u8 key_index, enum wmi_key_usage key_usage,
790 struct wil_sta_info *cs,
791 struct key_params *params)
792 {
793 struct wil_tid_crypto_rx_single *cc;
794 int tid;
795
796 if (!cs)
797 return;
798
799 switch (key_usage) {
800 case WMI_KEY_USE_PAIRWISE:
801 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
802 cc = &cs->tid_crypto_rx[tid].key_id[key_index];
803 if (params->seq)
804 memcpy(cc->pn, params->seq,
805 IEEE80211_GCMP_PN_LEN);
806 else
807 memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
808 cc->key_set = true;
809 }
810 break;
811 case WMI_KEY_USE_RX_GROUP:
812 cc = &cs->group_crypto_rx.key_id[key_index];
813 if (params->seq)
814 memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
815 else
816 memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
817 cc->key_set = true;
818 break;
819 default:
820 break;
821 }
822 }
823
wil_del_rx_key(u8 key_index,enum wmi_key_usage key_usage,struct wil_sta_info * cs)824 static void wil_del_rx_key(u8 key_index, enum wmi_key_usage key_usage,
825 struct wil_sta_info *cs)
826 {
827 struct wil_tid_crypto_rx_single *cc;
828 int tid;
829
830 if (!cs)
831 return;
832
833 switch (key_usage) {
834 case WMI_KEY_USE_PAIRWISE:
835 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
836 cc = &cs->tid_crypto_rx[tid].key_id[key_index];
837 cc->key_set = false;
838 }
839 break;
840 case WMI_KEY_USE_RX_GROUP:
841 cc = &cs->group_crypto_rx.key_id[key_index];
842 cc->key_set = false;
843 break;
844 default:
845 break;
846 }
847 }
848
wil_cfg80211_add_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)849 static int wil_cfg80211_add_key(struct wiphy *wiphy,
850 struct net_device *ndev,
851 u8 key_index, bool pairwise,
852 const u8 *mac_addr,
853 struct key_params *params)
854 {
855 int rc;
856 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
857 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
858 struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
859 mac_addr);
860
861 if (!params) {
862 wil_err(wil, "NULL params\n");
863 return -EINVAL;
864 }
865
866 wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
867 mac_addr, key_usage_str[key_usage], key_index,
868 params->seq_len, params->seq);
869
870 if (IS_ERR(cs)) {
871 wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
872 __func__, mac_addr, key_usage_str[key_usage], key_index,
873 params->seq_len, params->seq);
874 return -EINVAL;
875 }
876
877 wil_del_rx_key(key_index, key_usage, cs);
878
879 if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
880 wil_err(wil,
881 "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
882 params->seq_len, __func__, mac_addr,
883 key_usage_str[key_usage], key_index,
884 params->seq_len, params->seq);
885 return -EINVAL;
886 }
887
888 rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
889 params->key, key_usage);
890 if (!rc)
891 wil_set_crypto_rx(key_index, key_usage, cs, params);
892
893 return rc;
894 }
895
wil_cfg80211_del_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_index,bool pairwise,const u8 * mac_addr)896 static int wil_cfg80211_del_key(struct wiphy *wiphy,
897 struct net_device *ndev,
898 u8 key_index, bool pairwise,
899 const u8 *mac_addr)
900 {
901 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
902 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
903 struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
904 mac_addr);
905
906 wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
907 key_usage_str[key_usage], key_index);
908
909 if (IS_ERR(cs))
910 wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
911 mac_addr, key_usage_str[key_usage], key_index);
912
913 if (!IS_ERR_OR_NULL(cs))
914 wil_del_rx_key(key_index, key_usage, cs);
915
916 return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
917 }
918
919 /* Need to be present or wiphy_new() will WARN */
wil_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * ndev,u8 key_index,bool unicast,bool multicast)920 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
921 struct net_device *ndev,
922 u8 key_index, bool unicast,
923 bool multicast)
924 {
925 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
926
927 wil_dbg_misc(wil, "%s: entered\n", __func__);
928 return 0;
929 }
930
wil_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)931 static int wil_remain_on_channel(struct wiphy *wiphy,
932 struct wireless_dev *wdev,
933 struct ieee80211_channel *chan,
934 unsigned int duration,
935 u64 *cookie)
936 {
937 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
938 int rc;
939
940 wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
941 __func__, chan->center_freq, duration, wdev->iftype);
942
943 rc = wil_p2p_listen(wil, duration, chan, cookie);
944 if (rc)
945 return rc;
946
947 wil->radio_wdev = wdev;
948
949 cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
950 GFP_KERNEL);
951
952 return 0;
953 }
954
wil_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)955 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
956 struct wireless_dev *wdev,
957 u64 cookie)
958 {
959 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
960
961 wil_dbg_misc(wil, "%s()\n", __func__);
962
963 return wil_p2p_cancel_listen(wil, cookie);
964 }
965
966 /**
967 * find a specific IE in a list of IEs
968 * return a pointer to the beginning of IE in the list
969 * or NULL if not found
970 */
_wil_cfg80211_find_ie(const u8 * ies,u16 ies_len,const u8 * ie,u16 ie_len)971 static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
972 u16 ie_len)
973 {
974 struct ieee80211_vendor_ie *vie;
975 u32 oui;
976
977 /* IE tag at offset 0, length at offset 1 */
978 if (ie_len < 2 || 2 + ie[1] > ie_len)
979 return NULL;
980
981 if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
982 return cfg80211_find_ie(ie[0], ies, ies_len);
983
984 /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
985 if (ie[1] < 4)
986 return NULL;
987 vie = (struct ieee80211_vendor_ie *)ie;
988 oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
989 return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
990 ies_len);
991 }
992
993 /**
994 * merge the IEs in two lists into a single list.
995 * do not include IEs from the second list which exist in the first list.
996 * add only vendor specific IEs from second list to keep
997 * the merged list sorted (since vendor-specific IE has the
998 * highest tag number)
999 * caller must free the allocated memory for merged IEs
1000 */
_wil_cfg80211_merge_extra_ies(const u8 * ies1,u16 ies1_len,const u8 * ies2,u16 ies2_len,u8 ** merged_ies,u16 * merged_len)1001 static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
1002 const u8 *ies2, u16 ies2_len,
1003 u8 **merged_ies, u16 *merged_len)
1004 {
1005 u8 *buf, *dpos;
1006 const u8 *spos;
1007
1008 if (ies1_len == 0 && ies2_len == 0) {
1009 *merged_ies = NULL;
1010 *merged_len = 0;
1011 return 0;
1012 }
1013
1014 buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
1015 if (!buf)
1016 return -ENOMEM;
1017 memcpy(buf, ies1, ies1_len);
1018 dpos = buf + ies1_len;
1019 spos = ies2;
1020 while (spos + 1 < ies2 + ies2_len) {
1021 /* IE tag at offset 0, length at offset 1 */
1022 u16 ielen = 2 + spos[1];
1023
1024 if (spos + ielen > ies2 + ies2_len)
1025 break;
1026 if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
1027 !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
1028 memcpy(dpos, spos, ielen);
1029 dpos += ielen;
1030 }
1031 spos += ielen;
1032 }
1033
1034 *merged_ies = buf;
1035 *merged_len = dpos - buf;
1036 return 0;
1037 }
1038
wil_print_bcon_data(struct cfg80211_beacon_data * b)1039 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
1040 {
1041 print_hex_dump_bytes("head ", DUMP_PREFIX_OFFSET,
1042 b->head, b->head_len);
1043 print_hex_dump_bytes("tail ", DUMP_PREFIX_OFFSET,
1044 b->tail, b->tail_len);
1045 print_hex_dump_bytes("BCON IE ", DUMP_PREFIX_OFFSET,
1046 b->beacon_ies, b->beacon_ies_len);
1047 print_hex_dump_bytes("PROBE ", DUMP_PREFIX_OFFSET,
1048 b->probe_resp, b->probe_resp_len);
1049 print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
1050 b->proberesp_ies, b->proberesp_ies_len);
1051 print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
1052 b->assocresp_ies, b->assocresp_ies_len);
1053 }
1054
1055 /* internal functions for device reset and starting AP */
_wil_cfg80211_set_ies(struct wiphy * wiphy,struct cfg80211_beacon_data * bcon)1056 static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1057 struct cfg80211_beacon_data *bcon)
1058 {
1059 int rc;
1060 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1061 u16 len = 0, proberesp_len = 0;
1062 u8 *ies = NULL, *proberesp = NULL;
1063
1064 if (bcon->probe_resp) {
1065 struct ieee80211_mgmt *f =
1066 (struct ieee80211_mgmt *)bcon->probe_resp;
1067 size_t hlen = offsetof(struct ieee80211_mgmt,
1068 u.probe_resp.variable);
1069 proberesp = f->u.probe_resp.variable;
1070 proberesp_len = bcon->probe_resp_len - hlen;
1071 }
1072 rc = _wil_cfg80211_merge_extra_ies(proberesp,
1073 proberesp_len,
1074 bcon->proberesp_ies,
1075 bcon->proberesp_ies_len,
1076 &ies, &len);
1077
1078 if (rc)
1079 goto out;
1080
1081 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1082 if (rc)
1083 goto out;
1084
1085 if (bcon->assocresp_ies)
1086 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1087 bcon->assocresp_ies_len, bcon->assocresp_ies);
1088 else
1089 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1090 #if 0 /* to use beacon IE's, remove this #if 0 */
1091 if (rc)
1092 goto out;
1093
1094 rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1095 #endif
1096 out:
1097 kfree(ies);
1098 return rc;
1099 }
1100
_wil_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * ndev,const u8 * ssid,size_t ssid_len,u32 privacy,int bi,u8 chan,struct cfg80211_beacon_data * bcon,u8 hidden_ssid,u32 pbss)1101 static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1102 struct net_device *ndev,
1103 const u8 *ssid, size_t ssid_len, u32 privacy,
1104 int bi, u8 chan,
1105 struct cfg80211_beacon_data *bcon,
1106 u8 hidden_ssid, u32 pbss)
1107 {
1108 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1109 int rc;
1110 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1111 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1112 u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1113
1114 if (pbss)
1115 wmi_nettype = WMI_NETTYPE_P2P;
1116
1117 wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1118 if (is_go && !pbss) {
1119 wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1120 return -ENOTSUPP;
1121 }
1122
1123 wil_set_recovery_state(wil, fw_recovery_idle);
1124
1125 mutex_lock(&wil->mutex);
1126
1127 __wil_down(wil);
1128 rc = __wil_up(wil);
1129 if (rc)
1130 goto out;
1131
1132 rc = wmi_set_ssid(wil, ssid_len, ssid);
1133 if (rc)
1134 goto out;
1135
1136 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1137 if (rc)
1138 goto out;
1139
1140 wil->privacy = privacy;
1141 wil->channel = chan;
1142 wil->hidden_ssid = hidden_ssid;
1143 wil->pbss = pbss;
1144
1145 netif_carrier_on(ndev);
1146
1147 rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1148 if (rc)
1149 goto err_pcp_start;
1150
1151 rc = wil_bcast_init(wil);
1152 if (rc)
1153 goto err_bcast;
1154
1155 goto out; /* success */
1156
1157 err_bcast:
1158 wmi_pcp_stop(wil);
1159 err_pcp_start:
1160 netif_carrier_off(ndev);
1161 out:
1162 mutex_unlock(&wil->mutex);
1163 return rc;
1164 }
1165
wil_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_beacon_data * bcon)1166 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1167 struct net_device *ndev,
1168 struct cfg80211_beacon_data *bcon)
1169 {
1170 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1171 int rc;
1172 u32 privacy = 0;
1173
1174 wil_dbg_misc(wil, "%s()\n", __func__);
1175 wil_print_bcon_data(bcon);
1176
1177 if (bcon->tail &&
1178 cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1179 bcon->tail_len))
1180 privacy = 1;
1181
1182 /* in case privacy has changed, need to restart the AP */
1183 if (wil->privacy != privacy) {
1184 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1185
1186 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1187 wil->privacy, privacy);
1188
1189 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1190 wdev->ssid_len, privacy,
1191 wdev->beacon_interval,
1192 wil->channel, bcon,
1193 wil->hidden_ssid,
1194 wil->pbss);
1195 } else {
1196 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1197 }
1198
1199 return rc;
1200 }
1201
wil_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * ndev,struct cfg80211_ap_settings * info)1202 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1203 struct net_device *ndev,
1204 struct cfg80211_ap_settings *info)
1205 {
1206 int rc;
1207 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1208 struct ieee80211_channel *channel = info->chandef.chan;
1209 struct cfg80211_beacon_data *bcon = &info->beacon;
1210 struct cfg80211_crypto_settings *crypto = &info->crypto;
1211 u8 hidden_ssid;
1212
1213 wil_dbg_misc(wil, "%s()\n", __func__);
1214
1215 if (!channel) {
1216 wil_err(wil, "AP: No channel???\n");
1217 return -EINVAL;
1218 }
1219
1220 switch (info->hidden_ssid) {
1221 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1222 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1223 break;
1224
1225 case NL80211_HIDDEN_SSID_ZERO_LEN:
1226 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1227 break;
1228
1229 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1230 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1231 break;
1232
1233 default:
1234 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1235 return -EOPNOTSUPP;
1236 }
1237 wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1238 channel->center_freq, info->privacy ? "secure" : "open");
1239 wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1240 info->privacy, info->auth_type);
1241 wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1242 info->hidden_ssid);
1243 wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1244 info->dtim_period);
1245 wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1246 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1247 info->ssid, info->ssid_len);
1248 wil_print_bcon_data(bcon);
1249 wil_print_crypto(wil, crypto);
1250
1251 rc = _wil_cfg80211_start_ap(wiphy, ndev,
1252 info->ssid, info->ssid_len, info->privacy,
1253 info->beacon_interval, channel->hw_value,
1254 bcon, hidden_ssid, info->pbss);
1255
1256 return rc;
1257 }
1258
wil_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * ndev)1259 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1260 struct net_device *ndev)
1261 {
1262 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1263
1264 wil_dbg_misc(wil, "%s()\n", __func__);
1265
1266 netif_carrier_off(ndev);
1267 wil_set_recovery_state(wil, fw_recovery_idle);
1268
1269 mutex_lock(&wil->mutex);
1270
1271 wmi_pcp_stop(wil);
1272
1273 __wil_down(wil);
1274
1275 mutex_unlock(&wil->mutex);
1276
1277 return 0;
1278 }
1279
wil_cfg80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1280 static int wil_cfg80211_del_station(struct wiphy *wiphy,
1281 struct net_device *dev,
1282 struct station_del_parameters *params)
1283 {
1284 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1285
1286 wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1287 params->reason_code);
1288
1289 mutex_lock(&wil->mutex);
1290 wil6210_disconnect(wil, params->mac, params->reason_code, false);
1291 mutex_unlock(&wil->mutex);
1292
1293 return 0;
1294 }
1295
1296 /* probe_client handling */
wil_probe_client_handle(struct wil6210_priv * wil,struct wil_probe_client_req * req)1297 static void wil_probe_client_handle(struct wil6210_priv *wil,
1298 struct wil_probe_client_req *req)
1299 {
1300 struct net_device *ndev = wil_to_ndev(wil);
1301 struct wil_sta_info *sta = &wil->sta[req->cid];
1302 /* assume STA is alive if it is still connected,
1303 * else FW will disconnect it
1304 */
1305 bool alive = (sta->status == wil_sta_connected);
1306
1307 cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1308 }
1309
next_probe_client(struct wil6210_priv * wil)1310 static struct list_head *next_probe_client(struct wil6210_priv *wil)
1311 {
1312 struct list_head *ret = NULL;
1313
1314 mutex_lock(&wil->probe_client_mutex);
1315
1316 if (!list_empty(&wil->probe_client_pending)) {
1317 ret = wil->probe_client_pending.next;
1318 list_del(ret);
1319 }
1320
1321 mutex_unlock(&wil->probe_client_mutex);
1322
1323 return ret;
1324 }
1325
wil_probe_client_worker(struct work_struct * work)1326 void wil_probe_client_worker(struct work_struct *work)
1327 {
1328 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1329 probe_client_worker);
1330 struct wil_probe_client_req *req;
1331 struct list_head *lh;
1332
1333 while ((lh = next_probe_client(wil)) != NULL) {
1334 req = list_entry(lh, struct wil_probe_client_req, list);
1335
1336 wil_probe_client_handle(wil, req);
1337 kfree(req);
1338 }
1339 }
1340
wil_probe_client_flush(struct wil6210_priv * wil)1341 void wil_probe_client_flush(struct wil6210_priv *wil)
1342 {
1343 struct wil_probe_client_req *req, *t;
1344
1345 wil_dbg_misc(wil, "%s()\n", __func__);
1346
1347 mutex_lock(&wil->probe_client_mutex);
1348
1349 list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1350 list_del(&req->list);
1351 kfree(req);
1352 }
1353
1354 mutex_unlock(&wil->probe_client_mutex);
1355 }
1356
wil_cfg80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)1357 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1358 struct net_device *dev,
1359 const u8 *peer, u64 *cookie)
1360 {
1361 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1362 struct wil_probe_client_req *req;
1363 int cid = wil_find_cid(wil, peer);
1364
1365 wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1366
1367 if (cid < 0)
1368 return -ENOLINK;
1369
1370 req = kzalloc(sizeof(*req), GFP_KERNEL);
1371 if (!req)
1372 return -ENOMEM;
1373
1374 req->cid = cid;
1375 req->cookie = cid;
1376
1377 mutex_lock(&wil->probe_client_mutex);
1378 list_add_tail(&req->list, &wil->probe_client_pending);
1379 mutex_unlock(&wil->probe_client_mutex);
1380
1381 *cookie = req->cookie;
1382 queue_work(wil->wq_service, &wil->probe_client_worker);
1383 return 0;
1384 }
1385
wil_cfg80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)1386 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1387 struct net_device *dev,
1388 struct bss_parameters *params)
1389 {
1390 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1391
1392 if (params->ap_isolate >= 0) {
1393 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1394 wil->ap_isolate, params->ap_isolate);
1395 wil->ap_isolate = params->ap_isolate;
1396 }
1397
1398 return 0;
1399 }
1400
wil_cfg80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)1401 static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1402 struct wireless_dev *wdev)
1403 {
1404 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1405
1406 wil_dbg_misc(wil, "%s: entered\n", __func__);
1407 wil->p2p.p2p_dev_started = 1;
1408 return 0;
1409 }
1410
wil_cfg80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)1411 static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1412 struct wireless_dev *wdev)
1413 {
1414 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1415 struct wil_p2p_info *p2p = &wil->p2p;
1416
1417 if (!p2p->p2p_dev_started)
1418 return;
1419
1420 wil_dbg_misc(wil, "%s: entered\n", __func__);
1421 mutex_lock(&wil->mutex);
1422 wil_p2p_stop_radio_operations(wil);
1423 p2p->p2p_dev_started = 0;
1424 mutex_unlock(&wil->mutex);
1425 }
1426
1427 static struct cfg80211_ops wil_cfg80211_ops = {
1428 .add_virtual_intf = wil_cfg80211_add_iface,
1429 .del_virtual_intf = wil_cfg80211_del_iface,
1430 .scan = wil_cfg80211_scan,
1431 .connect = wil_cfg80211_connect,
1432 .disconnect = wil_cfg80211_disconnect,
1433 .change_virtual_intf = wil_cfg80211_change_iface,
1434 .get_station = wil_cfg80211_get_station,
1435 .dump_station = wil_cfg80211_dump_station,
1436 .remain_on_channel = wil_remain_on_channel,
1437 .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1438 .mgmt_tx = wil_cfg80211_mgmt_tx,
1439 .set_monitor_channel = wil_cfg80211_set_channel,
1440 .add_key = wil_cfg80211_add_key,
1441 .del_key = wil_cfg80211_del_key,
1442 .set_default_key = wil_cfg80211_set_default_key,
1443 /* AP mode */
1444 .change_beacon = wil_cfg80211_change_beacon,
1445 .start_ap = wil_cfg80211_start_ap,
1446 .stop_ap = wil_cfg80211_stop_ap,
1447 .del_station = wil_cfg80211_del_station,
1448 .probe_client = wil_cfg80211_probe_client,
1449 .change_bss = wil_cfg80211_change_bss,
1450 /* P2P device */
1451 .start_p2p_device = wil_cfg80211_start_p2p_device,
1452 .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1453 };
1454
wil_wiphy_init(struct wiphy * wiphy)1455 static void wil_wiphy_init(struct wiphy *wiphy)
1456 {
1457 wiphy->max_scan_ssids = 1;
1458 wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1459 wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1460 wiphy->max_num_pmkids = 0 /* TODO: */;
1461 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1462 BIT(NL80211_IFTYPE_AP) |
1463 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1464 BIT(NL80211_IFTYPE_P2P_GO) |
1465 BIT(NL80211_IFTYPE_P2P_DEVICE) |
1466 BIT(NL80211_IFTYPE_MONITOR);
1467 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1468 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1469 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1470 dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1471 __func__, wiphy->flags);
1472 wiphy->probe_resp_offload =
1473 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1474 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1475 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1476
1477 wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1478
1479 /* TODO: figure this out */
1480 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1481
1482 wiphy->cipher_suites = wil_cipher_suites;
1483 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1484 wiphy->mgmt_stypes = wil_mgmt_stypes;
1485 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1486 }
1487
wil_cfg80211_init(struct device * dev)1488 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1489 {
1490 int rc = 0;
1491 struct wireless_dev *wdev;
1492
1493 dev_dbg(dev, "%s()\n", __func__);
1494
1495 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1496 if (!wdev)
1497 return ERR_PTR(-ENOMEM);
1498
1499 wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1500 sizeof(struct wil6210_priv));
1501 if (!wdev->wiphy) {
1502 rc = -ENOMEM;
1503 goto out;
1504 }
1505
1506 set_wiphy_dev(wdev->wiphy, dev);
1507 wil_wiphy_init(wdev->wiphy);
1508
1509 return wdev;
1510
1511 out:
1512 kfree(wdev);
1513
1514 return ERR_PTR(rc);
1515 }
1516
wil_wdev_free(struct wil6210_priv * wil)1517 void wil_wdev_free(struct wil6210_priv *wil)
1518 {
1519 struct wireless_dev *wdev = wil_to_wdev(wil);
1520
1521 dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1522
1523 if (!wdev)
1524 return;
1525
1526 wiphy_free(wdev->wiphy);
1527 kfree(wdev);
1528 }
1529
wil_p2p_wdev_free(struct wil6210_priv * wil)1530 void wil_p2p_wdev_free(struct wil6210_priv *wil)
1531 {
1532 struct wireless_dev *p2p_wdev;
1533
1534 mutex_lock(&wil->p2p_wdev_mutex);
1535 p2p_wdev = wil->p2p_wdev;
1536 wil->p2p_wdev = NULL;
1537 wil->radio_wdev = wil_to_wdev(wil);
1538 mutex_unlock(&wil->p2p_wdev_mutex);
1539 if (p2p_wdev) {
1540 cfg80211_unregister_wdev(p2p_wdev);
1541 kfree(p2p_wdev);
1542 }
1543 }
1544