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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
65ff556b | 9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
fcea37b2 | 10 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
e4fe5d4b | 11 | * Copyright(c) 2018 - 2019 Intel Corporation |
8ca151b5 JB |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of version 2 of the GNU General Public License as | |
15 | * published by the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
8ca151b5 | 22 | * The full GNU General Public License is included in this distribution |
410dc5aa | 23 | * in the file called COPYING. |
8ca151b5 JB |
24 | * |
25 | * Contact Information: | |
cb2f8277 | 26 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
27 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
28 | * | |
29 | * BSD LICENSE | |
30 | * | |
51368bf7 | 31 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
65ff556b | 32 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
fcea37b2 | 33 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
e4fe5d4b | 34 | * Copyright(c) 2018 - 2019 Intel Corporation |
8ca151b5 JB |
35 | * All rights reserved. |
36 | * | |
37 | * Redistribution and use in source and binary forms, with or without | |
38 | * modification, are permitted provided that the following conditions | |
39 | * are met: | |
40 | * | |
41 | * * Redistributions of source code must retain the above copyright | |
42 | * notice, this list of conditions and the following disclaimer. | |
43 | * * Redistributions in binary form must reproduce the above copyright | |
44 | * notice, this list of conditions and the following disclaimer in | |
45 | * the documentation and/or other materials provided with the | |
46 | * distribution. | |
47 | * * Neither the name Intel Corporation nor the names of its | |
48 | * contributors may be used to endorse or promote products derived | |
49 | * from this software without specific prior written permission. | |
50 | * | |
51 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
52 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
53 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
54 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
55 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
56 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
57 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
58 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
59 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
60 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
61 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
62 | * | |
63 | *****************************************************************************/ | |
64 | ||
f444eb10 | 65 | #include <linux/etherdevice.h> |
f0c2646a | 66 | #include <linux/ip.h> |
debff618 | 67 | #include <linux/fs.h> |
8ca151b5 JB |
68 | #include <net/cfg80211.h> |
69 | #include <net/ipv6.h> | |
f0c2646a | 70 | #include <net/tcp.h> |
f7fc5989 | 71 | #include <net/addrconf.h> |
8ca151b5 JB |
72 | #include "iwl-modparams.h" |
73 | #include "fw-api.h" | |
74 | #include "mvm.h" | |
75 | ||
76 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, | |
77 | struct ieee80211_vif *vif, | |
78 | struct cfg80211_gtk_rekey_data *data) | |
79 | { | |
80 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
81 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
82 | ||
3b37f4c9 | 83 | if (iwlwifi_mod_params.swcrypto) |
8ca151b5 JB |
84 | return; |
85 | ||
86 | mutex_lock(&mvm->mutex); | |
87 | ||
88 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); | |
89 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); | |
90 | mvmvif->rekey_data.replay_ctr = | |
cba84570 | 91 | cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr)); |
8ca151b5 JB |
92 | mvmvif->rekey_data.valid = true; |
93 | ||
94 | mutex_unlock(&mvm->mutex); | |
95 | } | |
96 | ||
97 | #if IS_ENABLED(CONFIG_IPV6) | |
98 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, | |
99 | struct ieee80211_vif *vif, | |
100 | struct inet6_dev *idev) | |
101 | { | |
102 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
103 | struct inet6_ifaddr *ifa; | |
104 | int idx = 0; | |
105 | ||
c97dab40 SS |
106 | memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs)); |
107 | ||
a3777e0f | 108 | read_lock_bh(&idev->lock); |
8ca151b5 JB |
109 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
110 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; | |
c97dab40 SS |
111 | if (ifa->flags & IFA_F_TENTATIVE) |
112 | __set_bit(idx, mvmvif->tentative_addrs); | |
8ca151b5 | 113 | idx++; |
5369d6c1 | 114 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) |
8ca151b5 JB |
115 | break; |
116 | } | |
a3777e0f | 117 | read_unlock_bh(&idev->lock); |
8ca151b5 JB |
118 | |
119 | mvmvif->num_target_ipv6_addrs = idx; | |
120 | } | |
121 | #endif | |
122 | ||
123 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, | |
124 | struct ieee80211_vif *vif, int idx) | |
125 | { | |
126 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
127 | ||
128 | mvmvif->tx_key_idx = idx; | |
129 | } | |
130 | ||
131 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) | |
132 | { | |
133 | int i; | |
134 | ||
135 | for (i = 0; i < IWL_P1K_SIZE; i++) | |
136 | out[i] = cpu_to_le16(p1k[i]); | |
137 | } | |
138 | ||
f5e28eac JB |
139 | static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key, |
140 | struct iwl_mvm_key_pn *ptk_pn, | |
141 | struct ieee80211_key_seq *seq, | |
142 | int tid, int queues) | |
143 | { | |
144 | const u8 *ret = seq->ccmp.pn; | |
145 | int i; | |
146 | ||
147 | /* get the PN from mac80211, used on the default queue */ | |
148 | ieee80211_get_key_rx_seq(key, tid, seq); | |
149 | ||
150 | /* and use the internal data for the other queues */ | |
151 | for (i = 1; i < queues; i++) { | |
152 | const u8 *tmp = ptk_pn->q[i].pn[tid]; | |
153 | ||
154 | if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0) | |
155 | ret = tmp; | |
156 | } | |
157 | ||
158 | return ret; | |
159 | } | |
160 | ||
8ca151b5 JB |
161 | struct wowlan_key_data { |
162 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
163 | struct iwl_wowlan_tkip_params_cmd *tkip; | |
ac8ef0ce | 164 | bool error, use_rsc_tsc, use_tkip, configure_keys; |
5312e54d | 165 | int wep_key_idx; |
8ca151b5 JB |
166 | }; |
167 | ||
168 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, | |
169 | struct ieee80211_vif *vif, | |
170 | struct ieee80211_sta *sta, | |
171 | struct ieee80211_key_conf *key, | |
172 | void *_data) | |
173 | { | |
174 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
175 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
176 | struct wowlan_key_data *data = _data; | |
177 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
178 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
179 | struct iwl_p1k_cache *rx_p1ks; | |
180 | u8 *rx_mic_key; | |
181 | struct ieee80211_key_seq seq; | |
182 | u32 cur_rx_iv32 = 0; | |
183 | u16 p1k[IWL_P1K_SIZE]; | |
184 | int ret, i; | |
185 | ||
8ca151b5 JB |
186 | switch (key->cipher) { |
187 | case WLAN_CIPHER_SUITE_WEP40: | |
188 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ | |
189 | struct { | |
190 | struct iwl_mvm_wep_key_cmd wep_key_cmd; | |
191 | struct iwl_mvm_wep_key wep_key; | |
192 | } __packed wkc = { | |
193 | .wep_key_cmd.mac_id_n_color = | |
194 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
195 | mvmvif->color)), | |
196 | .wep_key_cmd.num_keys = 1, | |
197 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ | |
198 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, | |
199 | .wep_key.key_index = key->keyidx, | |
200 | .wep_key.key_size = key->keylen, | |
201 | }; | |
202 | ||
203 | /* | |
204 | * This will fail -- the key functions don't set support | |
205 | * pairwise WEP keys. However, that's better than silently | |
206 | * failing WoWLAN. Or maybe not? | |
207 | */ | |
208 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
209 | break; | |
210 | ||
211 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); | |
212 | if (key->keyidx == mvmvif->tx_key_idx) { | |
213 | /* TX key must be at offset 0 */ | |
214 | wkc.wep_key.key_offset = 0; | |
215 | } else { | |
216 | /* others start at 1 */ | |
5312e54d JB |
217 | data->wep_key_idx++; |
218 | wkc.wep_key.key_offset = data->wep_key_idx; | |
8ca151b5 JB |
219 | } |
220 | ||
ac8ef0ce EP |
221 | if (data->configure_keys) { |
222 | mutex_lock(&mvm->mutex); | |
223 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, | |
224 | sizeof(wkc), &wkc); | |
225 | data->error = ret != 0; | |
226 | ||
227 | mvm->ptk_ivlen = key->iv_len; | |
228 | mvm->ptk_icvlen = key->icv_len; | |
229 | mvm->gtk_ivlen = key->iv_len; | |
230 | mvm->gtk_icvlen = key->icv_len; | |
231 | mutex_unlock(&mvm->mutex); | |
232 | } | |
f444eb10 | 233 | |
8ca151b5 | 234 | /* don't upload key again */ |
ac8ef0ce | 235 | return; |
8ca151b5 JB |
236 | } |
237 | default: | |
238 | data->error = true; | |
ac8ef0ce | 239 | return; |
8ca151b5 JB |
240 | case WLAN_CIPHER_SUITE_AES_CMAC: |
241 | /* | |
242 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them | |
243 | * but we also shouldn't abort suspend due to that. It does have | |
244 | * support for the IGTK key renewal, but doesn't really use the | |
245 | * IGTK for anything. This means we could spuriously wake up or | |
246 | * be deauthenticated, but that was considered acceptable. | |
247 | */ | |
ac8ef0ce | 248 | return; |
8ca151b5 JB |
249 | case WLAN_CIPHER_SUITE_TKIP: |
250 | if (sta) { | |
1ad4f639 EP |
251 | u64 pn64; |
252 | ||
8ca151b5 JB |
253 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; |
254 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
255 | ||
256 | rx_p1ks = data->tkip->rx_uni; | |
257 | ||
1ad4f639 EP |
258 | pn64 = atomic64_read(&key->tx_pn); |
259 | tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); | |
260 | tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); | |
8ca151b5 | 261 | |
1ad4f639 EP |
262 | ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64), |
263 | p1k); | |
8ca151b5 JB |
264 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); |
265 | ||
266 | memcpy(data->tkip->mic_keys.tx, | |
267 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
268 | IWL_MIC_KEY_SIZE); | |
269 | ||
270 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
271 | } else { | |
272 | tkip_sc = | |
273 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
274 | rx_p1ks = data->tkip->rx_multi; | |
275 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
276 | } | |
277 | ||
278 | /* | |
279 | * For non-QoS this relies on the fact that both the uCode and | |
280 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
281 | * for checking the IV in the frames. | |
282 | */ | |
283 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
284 | ieee80211_get_key_rx_seq(key, i, &seq); | |
285 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
286 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
287 | /* wrapping isn't allowed, AP must rekey */ | |
288 | if (seq.tkip.iv32 > cur_rx_iv32) | |
289 | cur_rx_iv32 = seq.tkip.iv32; | |
290 | } | |
291 | ||
292 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
293 | cur_rx_iv32, p1k); | |
294 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); | |
295 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
296 | cur_rx_iv32 + 1, p1k); | |
297 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); | |
298 | ||
299 | memcpy(rx_mic_key, | |
300 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
301 | IWL_MIC_KEY_SIZE); | |
302 | ||
303 | data->use_tkip = true; | |
304 | data->use_rsc_tsc = true; | |
305 | break; | |
306 | case WLAN_CIPHER_SUITE_CCMP: | |
307 | if (sta) { | |
6645d5e4 | 308 | u64 pn64; |
8ca151b5 JB |
309 | |
310 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
311 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
312 | ||
6645d5e4 JB |
313 | pn64 = atomic64_read(&key->tx_pn); |
314 | aes_tx_sc->pn = cpu_to_le64(pn64); | |
8ca151b5 JB |
315 | } else { |
316 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
317 | } | |
318 | ||
319 | /* | |
320 | * For non-QoS this relies on the fact that both the uCode and | |
f5e28eac | 321 | * mac80211/our RX code use TID 0 for checking the PN. |
8ca151b5 | 322 | */ |
f5e28eac JB |
323 | if (sta && iwl_mvm_has_new_rx_api(mvm)) { |
324 | struct iwl_mvm_sta *mvmsta; | |
325 | struct iwl_mvm_key_pn *ptk_pn; | |
326 | const u8 *pn; | |
327 | ||
328 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
329 | ptk_pn = rcu_dereference_protected( | |
330 | mvmsta->ptk_pn[key->keyidx], | |
331 | lockdep_is_held(&mvm->mutex)); | |
332 | if (WARN_ON(!ptk_pn)) | |
333 | break; | |
334 | ||
335 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
336 | pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, | |
337 | mvm->trans->num_rx_queues); | |
338 | aes_sc[i].pn = cpu_to_le64((u64)pn[5] | | |
339 | ((u64)pn[4] << 8) | | |
340 | ((u64)pn[3] << 16) | | |
341 | ((u64)pn[2] << 24) | | |
342 | ((u64)pn[1] << 32) | | |
343 | ((u64)pn[0] << 40)); | |
344 | } | |
345 | } else { | |
346 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
347 | u8 *pn = seq.ccmp.pn; | |
348 | ||
349 | ieee80211_get_key_rx_seq(key, i, &seq); | |
350 | aes_sc[i].pn = cpu_to_le64((u64)pn[5] | | |
351 | ((u64)pn[4] << 8) | | |
352 | ((u64)pn[3] << 16) | | |
353 | ((u64)pn[2] << 24) | | |
354 | ((u64)pn[1] << 32) | | |
355 | ((u64)pn[0] << 40)); | |
356 | } | |
8ca151b5 JB |
357 | } |
358 | data->use_rsc_tsc = true; | |
359 | break; | |
360 | } | |
361 | ||
ac8ef0ce EP |
362 | if (data->configure_keys) { |
363 | mutex_lock(&mvm->mutex); | |
5312e54d | 364 | /* |
ac8ef0ce EP |
365 | * The D3 firmware hardcodes the key offset 0 as the key it |
366 | * uses to transmit packets to the AP, i.e. the PTK. | |
5312e54d | 367 | */ |
ac8ef0ce EP |
368 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
369 | mvm->ptk_ivlen = key->iv_len; | |
370 | mvm->ptk_icvlen = key->icv_len; | |
371 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); | |
372 | } else { | |
373 | /* | |
374 | * firmware only supports TSC/RSC for a single key, | |
375 | * so if there are multiple keep overwriting them | |
376 | * with new ones -- this relies on mac80211 doing | |
377 | * list_add_tail(). | |
378 | */ | |
379 | mvm->gtk_ivlen = key->iv_len; | |
380 | mvm->gtk_icvlen = key->icv_len; | |
381 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); | |
382 | } | |
383 | mutex_unlock(&mvm->mutex); | |
384 | data->error = ret != 0; | |
8ca151b5 | 385 | } |
8ca151b5 JB |
386 | } |
387 | ||
0c546fb6 LC |
388 | static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm, |
389 | struct cfg80211_wowlan *wowlan) | |
8ca151b5 | 390 | { |
0c546fb6 | 391 | struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd; |
8ca151b5 JB |
392 | struct iwl_host_cmd cmd = { |
393 | .id = WOWLAN_PATTERNS, | |
394 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
8ca151b5 JB |
395 | }; |
396 | int i, err; | |
397 | ||
398 | if (!wowlan->n_patterns) | |
399 | return 0; | |
400 | ||
e3448967 | 401 | cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); |
8ca151b5 JB |
402 | |
403 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
404 | if (!pattern_cmd) | |
405 | return -ENOMEM; | |
406 | ||
407 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
408 | ||
409 | for (i = 0; i < wowlan->n_patterns; i++) { | |
410 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
411 | ||
412 | memcpy(&pattern_cmd->patterns[i].mask, | |
413 | wowlan->patterns[i].mask, mask_len); | |
414 | memcpy(&pattern_cmd->patterns[i].pattern, | |
415 | wowlan->patterns[i].pattern, | |
416 | wowlan->patterns[i].pattern_len); | |
417 | pattern_cmd->patterns[i].mask_size = mask_len; | |
418 | pattern_cmd->patterns[i].pattern_size = | |
419 | wowlan->patterns[i].pattern_len; | |
420 | } | |
421 | ||
422 | cmd.data[0] = pattern_cmd; | |
423 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
424 | kfree(pattern_cmd); | |
425 | return err; | |
426 | } | |
427 | ||
0c546fb6 LC |
428 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, |
429 | struct cfg80211_wowlan *wowlan) | |
430 | { | |
431 | struct iwl_wowlan_patterns_cmd *pattern_cmd; | |
432 | struct iwl_host_cmd cmd = { | |
433 | .id = WOWLAN_PATTERNS, | |
434 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
435 | }; | |
436 | int i, err; | |
437 | ||
438 | if (!wowlan->n_patterns) | |
439 | return 0; | |
440 | ||
441 | cmd.len[0] = sizeof(*pattern_cmd) + | |
442 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2); | |
443 | ||
444 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
445 | if (!pattern_cmd) | |
446 | return -ENOMEM; | |
447 | ||
448 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
449 | ||
450 | for (i = 0; i < wowlan->n_patterns; i++) { | |
451 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
452 | ||
453 | pattern_cmd->patterns[i].pattern_type = | |
454 | WOWLAN_PATTERN_TYPE_BITMASK; | |
455 | ||
456 | memcpy(&pattern_cmd->patterns[i].u.bitmask.mask, | |
457 | wowlan->patterns[i].mask, mask_len); | |
458 | memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern, | |
459 | wowlan->patterns[i].pattern, | |
460 | wowlan->patterns[i].pattern_len); | |
461 | pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len; | |
462 | pattern_cmd->patterns[i].u.bitmask.pattern_size = | |
463 | wowlan->patterns[i].pattern_len; | |
464 | } | |
465 | ||
466 | cmd.data[0] = pattern_cmd; | |
467 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
468 | kfree(pattern_cmd); | |
469 | return err; | |
470 | } | |
471 | ||
8ca151b5 JB |
472 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
473 | struct ieee80211_sta *ap_sta) | |
474 | { | |
475 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
476 | struct ieee80211_chanctx_conf *ctx; | |
477 | u8 chains_static, chains_dynamic; | |
478 | struct cfg80211_chan_def chandef; | |
479 | int ret, i; | |
10a970df | 480 | struct iwl_binding_cmd_v1 binding_cmd = {}; |
8ca151b5 | 481 | struct iwl_time_quota_cmd quota_cmd = {}; |
72cbb73e | 482 | struct iwl_time_quota_data *quota; |
8ca151b5 | 483 | u32 status; |
10a970df DH |
484 | |
485 | if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm))) | |
486 | return -EINVAL; | |
8ca151b5 JB |
487 | |
488 | /* add back the PHY */ | |
489 | if (WARN_ON(!mvmvif->phy_ctxt)) | |
490 | return -EINVAL; | |
491 | ||
492 | rcu_read_lock(); | |
493 | ctx = rcu_dereference(vif->chanctx_conf); | |
494 | if (WARN_ON(!ctx)) { | |
495 | rcu_read_unlock(); | |
496 | return -EINVAL; | |
497 | } | |
498 | chandef = ctx->def; | |
499 | chains_static = ctx->rx_chains_static; | |
500 | chains_dynamic = ctx->rx_chains_dynamic; | |
501 | rcu_read_unlock(); | |
502 | ||
503 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, | |
504 | chains_static, chains_dynamic); | |
505 | if (ret) | |
506 | return ret; | |
507 | ||
508 | /* add back the MAC */ | |
509 | mvmvif->uploaded = false; | |
510 | ||
511 | if (WARN_ON(!vif->bss_conf.assoc)) | |
512 | return -EINVAL; | |
bca49d9a | 513 | |
8ca151b5 | 514 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
8ca151b5 JB |
515 | if (ret) |
516 | return ret; | |
517 | ||
518 | /* add back binding - XXX refactor? */ | |
519 | binding_cmd.id_and_color = | |
520 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
521 | mvmvif->phy_ctxt->color)); | |
522 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
523 | binding_cmd.phy = | |
524 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
525 | mvmvif->phy_ctxt->color)); | |
526 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
527 | mvmvif->color)); | |
528 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) | |
529 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); | |
530 | ||
531 | status = 0; | |
532 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, | |
10a970df DH |
533 | IWL_BINDING_CMD_SIZE_V1, &binding_cmd, |
534 | &status); | |
8ca151b5 JB |
535 | if (ret) { |
536 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); | |
537 | return ret; | |
538 | } | |
539 | ||
540 | if (status) { | |
541 | IWL_ERR(mvm, "Binding command failed: %u\n", status); | |
542 | return -EIO; | |
543 | } | |
544 | ||
24afba76 | 545 | ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0); |
8ca151b5 JB |
546 | if (ret) |
547 | return ret; | |
548 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); | |
549 | ||
3dfd3a97 | 550 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
551 | if (ret) |
552 | return ret; | |
553 | ||
554 | /* and some quota */ | |
72cbb73e DS |
555 | quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0); |
556 | quota->id_and_color = | |
8ca151b5 JB |
557 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, |
558 | mvmvif->phy_ctxt->color)); | |
72cbb73e DS |
559 | quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); |
560 | quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); | |
8ca151b5 | 561 | |
72cbb73e DS |
562 | for (i = 1; i < MAX_BINDINGS; i++) { |
563 | quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i); | |
564 | quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID); | |
565 | } | |
8ca151b5 | 566 | |
a1022927 | 567 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, |
72cbb73e | 568 | iwl_mvm_quota_cmd_size(mvm), "a_cmd); |
8ca151b5 JB |
569 | if (ret) |
570 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); | |
571 | ||
47c8b154 JD |
572 | if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm)) |
573 | IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); | |
574 | ||
8ca151b5 JB |
575 | return 0; |
576 | } | |
577 | ||
4ac6cb59 JB |
578 | static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, |
579 | struct ieee80211_vif *vif) | |
580 | { | |
6d9d32b8 JB |
581 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
582 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
583 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), | |
584 | .mac_id_n_color = | |
585 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
586 | mvmvif->color)), | |
587 | }; | |
4ac6cb59 JB |
588 | struct iwl_host_cmd cmd = { |
589 | .id = NON_QOS_TX_COUNTER_CMD, | |
a1022927 | 590 | .flags = CMD_WANT_SKB, |
4ac6cb59 JB |
591 | }; |
592 | int err; | |
593 | u32 size; | |
594 | ||
3afec639 EG |
595 | cmd.data[0] = &query_cmd; |
596 | cmd.len[0] = sizeof(query_cmd); | |
6d9d32b8 | 597 | |
4ac6cb59 JB |
598 | err = iwl_mvm_send_cmd(mvm, &cmd); |
599 | if (err) | |
600 | return err; | |
601 | ||
65b30348 | 602 | size = iwl_rx_packet_payload_len(cmd.resp_pkt); |
6d9d32b8 | 603 | if (size < sizeof(__le16)) { |
4ac6cb59 | 604 | err = -EINVAL; |
6d9d32b8 JB |
605 | } else { |
606 | err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); | |
3afec639 EG |
607 | /* firmware returns next, not last-used seqno */ |
608 | err = (u16) (err - 0x10); | |
6d9d32b8 | 609 | } |
4ac6cb59 JB |
610 | |
611 | iwl_free_resp(&cmd); | |
612 | return err; | |
613 | } | |
614 | ||
6d9d32b8 JB |
615 | void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
616 | { | |
617 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
618 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
619 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), | |
620 | .mac_id_n_color = | |
621 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
622 | mvmvif->color)), | |
623 | .value = cpu_to_le16(mvmvif->seqno), | |
624 | }; | |
625 | ||
626 | /* return if called during restart, not resume from D3 */ | |
627 | if (!mvmvif->seqno_valid) | |
628 | return; | |
629 | ||
630 | mvmvif->seqno_valid = false; | |
631 | ||
a1022927 | 632 | if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, |
6d9d32b8 JB |
633 | sizeof(query_cmd), &query_cmd)) |
634 | IWL_ERR(mvm, "failed to set non-QoS seqno\n"); | |
635 | } | |
636 | ||
671b5820 LC |
637 | static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) |
638 | { | |
c7d42480 | 639 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
671b5820 | 640 | |
fcb6b92a | 641 | iwl_mvm_stop_device(mvm); |
671b5820 LC |
642 | /* |
643 | * Set the HW restart bit -- this is mostly true as we're | |
644 | * going to load new firmware and reprogram that, though | |
645 | * the reprogramming is going to be manual to avoid adding | |
646 | * all the MACs that aren't support. | |
647 | * We don't have to clear up everything though because the | |
648 | * reprogramming is manual. When we resume, we'll actually | |
649 | * go through a proper restart sequence again to switch | |
650 | * back to the runtime firmware image. | |
651 | */ | |
652 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
653 | ||
9c3deeb5 LC |
654 | /* the fw is reset, so all the keys are cleared */ |
655 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); | |
656 | ||
671b5820 LC |
657 | mvm->ptk_ivlen = 0; |
658 | mvm->ptk_icvlen = 0; | |
659 | mvm->ptk_ivlen = 0; | |
660 | mvm->ptk_icvlen = 0; | |
661 | ||
662 | return iwl_mvm_load_d3_fw(mvm); | |
663 | } | |
664 | ||
671b5820 LC |
665 | static int |
666 | iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, | |
667 | struct cfg80211_wowlan *wowlan, | |
c8b06a99 | 668 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
671b5820 LC |
669 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
670 | struct ieee80211_sta *ap_sta) | |
8ca151b5 | 671 | { |
1a95c8df | 672 | int ret; |
9d8ce6af | 673 | struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
8ca151b5 | 674 | |
c8b06a99 | 675 | /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ |
8ca151b5 | 676 | |
c8b06a99 | 677 | wowlan_config_cmd->is_11n_connection = |
1a95c8df | 678 | ap_sta->ht_cap.ht_supported; |
70b4c536 | 679 | wowlan_config_cmd->flags = ENABLE_L3_FILTERING | |
32795a88 | 680 | ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; |
8ca151b5 | 681 | |
4ac6cb59 JB |
682 | /* Query the last used seqno and set it */ |
683 | ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); | |
684 | if (ret < 0) | |
671b5820 | 685 | return ret; |
8ca151b5 | 686 | |
c8b06a99 | 687 | wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); |
671b5820 | 688 | |
c8b06a99 | 689 | iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); |
8ca151b5 JB |
690 | |
691 | if (wowlan->disconnect) | |
c8b06a99 | 692 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
693 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
694 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
695 | if (wowlan->magic_pkt) | |
c8b06a99 | 696 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
697 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); |
698 | if (wowlan->gtk_rekey_failure) | |
c8b06a99 | 699 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
700 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
701 | if (wowlan->eap_identity_req) | |
c8b06a99 | 702 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
703 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
704 | if (wowlan->four_way_handshake) | |
c8b06a99 | 705 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
706 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
707 | if (wowlan->n_patterns) | |
c8b06a99 | 708 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
709 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); |
710 | ||
711 | if (wowlan->rfkill_release) | |
c8b06a99 | 712 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
713 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
714 | ||
f0c2646a JB |
715 | if (wowlan->tcp) { |
716 | /* | |
6039f3e1 JB |
717 | * Set the "link change" (really "link lost") flag as well |
718 | * since that implies losing the TCP connection. | |
f0c2646a | 719 | */ |
c8b06a99 | 720 | wowlan_config_cmd->wakeup_filter |= |
f0c2646a JB |
721 | cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | |
722 | IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | | |
723 | IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | | |
724 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
725 | } | |
726 | ||
d3a6f7fb EP |
727 | if (wowlan->any) { |
728 | wowlan_config_cmd->wakeup_filter |= | |
729 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | | |
730 | IWL_WOWLAN_WAKEUP_LINK_CHANGE | | |
731 | IWL_WOWLAN_WAKEUP_RX_FRAME | | |
732 | IWL_WOWLAN_WAKEUP_BCN_FILTERING); | |
733 | } | |
734 | ||
671b5820 LC |
735 | return 0; |
736 | } | |
f444eb10 | 737 | |
0ea93388 EG |
738 | static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, |
739 | struct ieee80211_vif *vif, | |
740 | u32 cmd_flags) | |
671b5820 LC |
741 | { |
742 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; | |
743 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; | |
8c7fd6a3 SS |
744 | bool unified = fw_has_capa(&mvm->fw->ucode_capa, |
745 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
671b5820 | 746 | struct wowlan_key_data key_data = { |
0ea93388 | 747 | .configure_keys = !unified, |
671b5820 LC |
748 | .use_rsc_tsc = false, |
749 | .tkip = &tkip_cmd, | |
750 | .use_tkip = false, | |
751 | }; | |
ac8ef0ce EP |
752 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
753 | int ret; | |
754 | ||
755 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
756 | if (!key_data.rsc_tsc) | |
757 | return -ENOMEM; | |
758 | ||
759 | /* | |
a3f7ba5c EP |
760 | * if we have to configure keys, call ieee80211_iter_keys(), |
761 | * as we need non-atomic context in order to take the | |
762 | * required locks. | |
ac8ef0ce | 763 | */ |
0ea93388 EG |
764 | /* |
765 | * Note that currently we don't propagate cmd_flags | |
766 | * to the iterator. In case of key_data.configure_keys, | |
767 | * all the configured commands are SYNC, and | |
768 | * iwl_mvm_wowlan_program_keys() will take care of | |
769 | * locking/unlocking mvm->mutex. | |
770 | */ | |
771 | ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, | |
772 | &key_data); | |
ac8ef0ce EP |
773 | |
774 | if (key_data.error) { | |
775 | ret = -EIO; | |
776 | goto out; | |
777 | } | |
778 | ||
779 | if (key_data.use_rsc_tsc) { | |
780 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
781 | WOWLAN_TSC_RSC_PARAM, cmd_flags, | |
782 | sizeof(*key_data.rsc_tsc), | |
783 | key_data.rsc_tsc); | |
784 | if (ret) | |
785 | goto out; | |
786 | } | |
787 | ||
45c458b4 SS |
788 | if (key_data.use_tkip && |
789 | !fw_has_api(&mvm->fw->ucode_capa, | |
790 | IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { | |
ac8ef0ce EP |
791 | ret = iwl_mvm_send_cmd_pdu(mvm, |
792 | WOWLAN_TKIP_PARAM, | |
793 | cmd_flags, sizeof(tkip_cmd), | |
794 | &tkip_cmd); | |
795 | if (ret) | |
796 | goto out; | |
797 | } | |
798 | ||
a3f7ba5c | 799 | /* configure rekey data only if offloaded rekey is supported (d3) */ |
0ea93388 | 800 | if (mvmvif->rekey_data.valid) { |
ac8ef0ce EP |
801 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); |
802 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, | |
803 | NL80211_KCK_LEN); | |
804 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
805 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, | |
806 | NL80211_KEK_LEN); | |
807 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
808 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; | |
809 | ||
810 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
811 | WOWLAN_KEK_KCK_MATERIAL, cmd_flags, | |
812 | sizeof(kek_kck_cmd), | |
813 | &kek_kck_cmd); | |
814 | if (ret) | |
815 | goto out; | |
816 | } | |
3f50a690 | 817 | ret = 0; |
ac8ef0ce EP |
818 | out: |
819 | kfree(key_data.rsc_tsc); | |
820 | return ret; | |
821 | } | |
822 | ||
823 | static int | |
824 | iwl_mvm_wowlan_config(struct iwl_mvm *mvm, | |
825 | struct cfg80211_wowlan *wowlan, | |
826 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, | |
827 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, | |
828 | struct ieee80211_sta *ap_sta) | |
829 | { | |
671b5820 | 830 | int ret; |
23ae6128 MG |
831 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
832 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
8ca151b5 | 833 | |
ba7136f3 AM |
834 | mvm->offload_tid = wowlan_config_cmd->offloading_tid; |
835 | ||
23ae6128 MG |
836 | if (!unified_image) { |
837 | ret = iwl_mvm_switch_to_d3(mvm); | |
838 | if (ret) | |
839 | return ret; | |
3acc952b | 840 | |
23ae6128 MG |
841 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); |
842 | if (ret) | |
843 | return ret; | |
844 | } | |
671b5820 | 845 | |
3b37f4c9 | 846 | if (!iwlwifi_mod_params.swcrypto) { |
8ca151b5 JB |
847 | /* |
848 | * This needs to be unlocked due to lock ordering | |
849 | * constraints. Since we're in the suspend path | |
850 | * that isn't really a problem though. | |
851 | */ | |
852 | mutex_unlock(&mvm->mutex); | |
0ea93388 | 853 | ret = iwl_mvm_wowlan_config_key_params(mvm, vif, CMD_ASYNC); |
8ca151b5 | 854 | mutex_lock(&mvm->mutex); |
3f50a690 EP |
855 | if (ret) |
856 | return ret; | |
8ca151b5 JB |
857 | } |
858 | ||
c8b06a99 EG |
859 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
860 | sizeof(*wowlan_config_cmd), | |
861 | wowlan_config_cmd); | |
8ca151b5 | 862 | if (ret) |
ac8ef0ce | 863 | return ret; |
8ca151b5 | 864 | |
0c546fb6 LC |
865 | if (fw_has_api(&mvm->fw->ucode_capa, |
866 | IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) | |
867 | ret = iwl_mvm_send_patterns(mvm, wowlan); | |
868 | else | |
869 | ret = iwl_mvm_send_patterns_v1(mvm, wowlan); | |
8ca151b5 | 870 | if (ret) |
ac8ef0ce | 871 | return ret; |
8ca151b5 | 872 | |
debdc23b | 873 | return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0); |
671b5820 LC |
874 | } |
875 | ||
3acc952b LC |
876 | static int |
877 | iwl_mvm_netdetect_config(struct iwl_mvm *mvm, | |
878 | struct cfg80211_wowlan *wowlan, | |
879 | struct cfg80211_sched_scan_request *nd_config, | |
880 | struct ieee80211_vif *vif) | |
881 | { | |
c8b06a99 | 882 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b | 883 | int ret; |
23ae6128 MG |
884 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
885 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
3acc952b | 886 | |
23ae6128 MG |
887 | if (!unified_image) { |
888 | ret = iwl_mvm_switch_to_d3(mvm); | |
889 | if (ret) | |
890 | return ret; | |
5a143db8 LC |
891 | } else { |
892 | /* In theory, we wouldn't have to stop a running sched | |
893 | * scan in order to start another one (for | |
894 | * net-detect). But in practice this doesn't seem to | |
895 | * work properly, so stop any running sched_scan now. | |
896 | */ | |
897 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); | |
898 | if (ret) | |
899 | return ret; | |
23ae6128 | 900 | } |
3acc952b LC |
901 | |
902 | /* rfkill release can be either for wowlan or netdetect */ | |
903 | if (wowlan->rfkill_release) | |
c8b06a99 | 904 | wowlan_config_cmd.wakeup_filter |= |
3acc952b LC |
905 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
906 | ||
f005fd88 HD |
907 | wowlan_config_cmd.sta_id = mvm->aux_sta.sta_id; |
908 | ||
c8b06a99 EG |
909 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
910 | sizeof(wowlan_config_cmd), | |
911 | &wowlan_config_cmd); | |
3acc952b LC |
912 | if (ret) |
913 | return ret; | |
914 | ||
19945dfb LC |
915 | ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, |
916 | IWL_MVM_SCAN_NETDETECT); | |
d9718da8 LC |
917 | if (ret) |
918 | return ret; | |
3acc952b | 919 | |
8ed4e659 | 920 | if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) |
d9718da8 LC |
921 | return -EBUSY; |
922 | ||
8ed4e659 | 923 | /* save the sched scan matchsets... */ |
d9718da8 LC |
924 | if (nd_config->n_match_sets) { |
925 | mvm->nd_match_sets = kmemdup(nd_config->match_sets, | |
926 | sizeof(*nd_config->match_sets) * | |
927 | nd_config->n_match_sets, | |
928 | GFP_KERNEL); | |
929 | if (mvm->nd_match_sets) | |
930 | mvm->n_nd_match_sets = nd_config->n_match_sets; | |
931 | } | |
932 | ||
8ed4e659 LC |
933 | /* ...and the sched scan channels for later reporting */ |
934 | mvm->nd_channels = kmemdup(nd_config->channels, | |
935 | sizeof(*nd_config->channels) * | |
936 | nd_config->n_channels, | |
937 | GFP_KERNEL); | |
938 | if (mvm->nd_channels) | |
939 | mvm->n_nd_channels = nd_config->n_channels; | |
940 | ||
d9718da8 LC |
941 | return 0; |
942 | } | |
943 | ||
944 | static void iwl_mvm_free_nd(struct iwl_mvm *mvm) | |
945 | { | |
946 | kfree(mvm->nd_match_sets); | |
947 | mvm->nd_match_sets = NULL; | |
948 | mvm->n_nd_match_sets = 0; | |
8ed4e659 LC |
949 | kfree(mvm->nd_channels); |
950 | mvm->nd_channels = NULL; | |
951 | mvm->n_nd_channels = 0; | |
3acc952b LC |
952 | } |
953 | ||
671b5820 LC |
954 | static int __iwl_mvm_suspend(struct ieee80211_hw *hw, |
955 | struct cfg80211_wowlan *wowlan, | |
956 | bool test) | |
957 | { | |
958 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
671b5820 LC |
959 | struct ieee80211_vif *vif = NULL; |
960 | struct iwl_mvm_vif *mvmvif = NULL; | |
961 | struct ieee80211_sta *ap_sta = NULL; | |
671b5820 LC |
962 | struct iwl_d3_manager_config d3_cfg_cmd_data = { |
963 | /* | |
964 | * Program the minimum sleep time to 10 seconds, as many | |
965 | * platforms have issues processing a wakeup signal while | |
966 | * still being in the process of suspending. | |
967 | */ | |
968 | .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), | |
969 | }; | |
970 | struct iwl_host_cmd d3_cfg_cmd = { | |
971 | .id = D3_CONFIG_CMD, | |
972 | .flags = CMD_WANT_SKB, | |
973 | .data[0] = &d3_cfg_cmd_data, | |
974 | .len[0] = sizeof(d3_cfg_cmd_data), | |
975 | }; | |
976 | int ret; | |
977 | int len __maybe_unused; | |
23ae6128 MG |
978 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
979 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
671b5820 LC |
980 | |
981 | if (!wowlan) { | |
982 | /* | |
983 | * mac80211 shouldn't get here, but for D3 test | |
984 | * it doesn't warrant a warning | |
985 | */ | |
986 | WARN_ON(!test); | |
987 | return -EINVAL; | |
988 | } | |
989 | ||
990 | mutex_lock(&mvm->mutex); | |
991 | ||
7f549e2c LC |
992 | vif = iwl_mvm_get_bss_vif(mvm); |
993 | if (IS_ERR_OR_NULL(vif)) { | |
671b5820 LC |
994 | ret = 1; |
995 | goto out_noreset; | |
996 | } | |
997 | ||
671b5820 LC |
998 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
999 | ||
0ae98812 | 1000 | if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) { |
3acc952b | 1001 | /* if we're not associated, this must be netdetect */ |
566f165d | 1002 | if (!wowlan->nd_config) { |
3acc952b LC |
1003 | ret = 1; |
1004 | goto out_noreset; | |
1005 | } | |
1006 | ||
1007 | ret = iwl_mvm_netdetect_config( | |
566f165d | 1008 | mvm, wowlan, wowlan->nd_config, vif); |
3acc952b LC |
1009 | if (ret) |
1010 | goto out; | |
2021a89d LC |
1011 | |
1012 | mvm->net_detect = true; | |
3acc952b | 1013 | } else { |
c8b06a99 | 1014 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b | 1015 | |
f005fd88 HD |
1016 | wowlan_config_cmd.sta_id = mvmvif->ap_sta_id; |
1017 | ||
1e4d19ca LC |
1018 | ap_sta = rcu_dereference_protected( |
1019 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
1020 | lockdep_is_held(&mvm->mutex)); | |
1021 | if (IS_ERR_OR_NULL(ap_sta)) { | |
1022 | ret = -EINVAL; | |
1023 | goto out_noreset; | |
1024 | } | |
671b5820 | 1025 | |
1e4d19ca LC |
1026 | ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1027 | vif, mvmvif, ap_sta); | |
1028 | if (ret) | |
1029 | goto out_noreset; | |
1e4d19ca LC |
1030 | ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1031 | vif, mvmvif, ap_sta); | |
1032 | if (ret) | |
3c2f3b20 | 1033 | goto out; |
2021a89d LC |
1034 | |
1035 | mvm->net_detect = false; | |
1e4d19ca | 1036 | } |
f0c2646a | 1037 | |
c1cb92fc | 1038 | ret = iwl_mvm_power_update_device(mvm); |
64b928c4 AB |
1039 | if (ret) |
1040 | goto out; | |
1041 | ||
999609f1 | 1042 | ret = iwl_mvm_power_update_mac(mvm); |
ee1e8422 AB |
1043 | if (ret) |
1044 | goto out; | |
1045 | ||
b0114714 JB |
1046 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1047 | if (mvm->d3_wake_sysassert) | |
1048 | d3_cfg_cmd_data.wakeup_flags |= | |
1049 | cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); | |
1050 | #endif | |
1051 | ||
e8a583f9 | 1052 | /* |
c040fe83 SM |
1053 | * Prior to 9000 device family the driver needs to stop the dbg |
1054 | * recording before entering D3. In later devices the FW stops the | |
1055 | * recording automatically. | |
e8a583f9 | 1056 | */ |
286ca8eb | 1057 | if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) |
57605833 | 1058 | iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); |
e8a583f9 | 1059 | |
8ca151b5 | 1060 | /* must be last -- this switches firmware state */ |
debff618 | 1061 | ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); |
8ca151b5 JB |
1062 | if (ret) |
1063 | goto out; | |
debff618 | 1064 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
65b30348 JB |
1065 | len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); |
1066 | if (len >= sizeof(u32)) { | |
debff618 JB |
1067 | mvm->d3_test_pme_ptr = |
1068 | le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); | |
debff618 JB |
1069 | } |
1070 | #endif | |
1071 | iwl_free_resp(&d3_cfg_cmd); | |
8ca151b5 JB |
1072 | |
1073 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1074 | ||
e5f3f215 | 1075 | ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); |
8ca151b5 | 1076 | out: |
d9718da8 | 1077 | if (ret < 0) { |
d9718da8 | 1078 | iwl_mvm_free_nd(mvm); |
bac453ab LC |
1079 | |
1080 | if (!unified_image) { | |
3b37f4c9 JB |
1081 | if (mvm->fw_restart > 0) { |
1082 | mvm->fw_restart--; | |
bac453ab LC |
1083 | ieee80211_restart_hw(mvm->hw); |
1084 | } | |
1085 | } | |
d9718da8 | 1086 | } |
b70ab727 | 1087 | out_noreset: |
8ca151b5 JB |
1088 | mutex_unlock(&mvm->mutex); |
1089 | ||
1090 | return ret; | |
1091 | } | |
1092 | ||
debff618 JB |
1093 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
1094 | { | |
d15a747f | 1095 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
b7282643 | 1096 | struct iwl_trans *trans = mvm->trans; |
c43fe907 EP |
1097 | int ret; |
1098 | ||
7d9d0d56 | 1099 | iwl_mvm_pause_tcm(mvm, true); |
cf8c3cff | 1100 | |
7f8ae00f HD |
1101 | iwl_fw_runtime_suspend(&mvm->fwrt); |
1102 | ||
b7282643 | 1103 | ret = iwl_trans_suspend(trans); |
c43fe907 EP |
1104 | if (ret) |
1105 | return ret; | |
d15a747f | 1106 | |
b7282643 LC |
1107 | trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; |
1108 | ||
debff618 JB |
1109 | return __iwl_mvm_suspend(hw, wowlan, false); |
1110 | } | |
1111 | ||
6d9d32b8 JB |
1112 | /* converted data from the different status responses */ |
1113 | struct iwl_wowlan_status_data { | |
1114 | u16 pattern_number; | |
1115 | u16 qos_seq_ctr[8]; | |
1116 | u32 wakeup_reasons; | |
1117 | u32 wake_packet_length; | |
1118 | u32 wake_packet_bufsize; | |
1119 | const u8 *wake_packet; | |
1120 | }; | |
1121 | ||
7abc4632 JB |
1122 | static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, |
1123 | struct ieee80211_vif *vif, | |
6d9d32b8 | 1124 | struct iwl_wowlan_status_data *status) |
9b26b500 | 1125 | { |
7abc4632 | 1126 | struct sk_buff *pkt = NULL; |
9b26b500 JB |
1127 | struct cfg80211_wowlan_wakeup wakeup = { |
1128 | .pattern_idx = -1, | |
1129 | }; | |
1130 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
6d9d32b8 | 1131 | u32 reasons = status->wakeup_reasons; |
9b26b500 JB |
1132 | |
1133 | if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { | |
1134 | wakeup_report = NULL; | |
1135 | goto report; | |
1136 | } | |
1137 | ||
06ae2ad4 DB |
1138 | pm_wakeup_event(mvm->dev, 0); |
1139 | ||
f444eb10 | 1140 | if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) |
9b26b500 | 1141 | wakeup.magic_pkt = true; |
9b26b500 | 1142 | |
f444eb10 | 1143 | if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) |
9b26b500 | 1144 | wakeup.pattern_idx = |
6d9d32b8 | 1145 | status->pattern_number; |
9b26b500 JB |
1146 | |
1147 | if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1148 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) | |
1149 | wakeup.disconnect = true; | |
1150 | ||
f444eb10 | 1151 | if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) |
9b26b500 | 1152 | wakeup.gtk_rekey_failure = true; |
9b26b500 | 1153 | |
f444eb10 | 1154 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
9b26b500 | 1155 | wakeup.rfkill_release = true; |
9b26b500 | 1156 | |
f444eb10 | 1157 | if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) |
9b26b500 | 1158 | wakeup.eap_identity_req = true; |
9b26b500 | 1159 | |
f444eb10 | 1160 | if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) |
9b26b500 | 1161 | wakeup.four_way_handshake = true; |
9b26b500 | 1162 | |
f0c2646a JB |
1163 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) |
1164 | wakeup.tcp_connlost = true; | |
1165 | ||
1166 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) | |
1167 | wakeup.tcp_nomoretokens = true; | |
1168 | ||
1169 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) | |
1170 | wakeup.tcp_match = true; | |
1171 | ||
9b26b500 | 1172 | if (status->wake_packet_bufsize) { |
6d9d32b8 JB |
1173 | int pktsize = status->wake_packet_bufsize; |
1174 | int pktlen = status->wake_packet_length; | |
f444eb10 JB |
1175 | const u8 *pktdata = status->wake_packet; |
1176 | struct ieee80211_hdr *hdr = (void *)pktdata; | |
1177 | int truncated = pktlen - pktsize; | |
1178 | ||
1179 | /* this would be a firmware bug */ | |
1180 | if (WARN_ON_ONCE(truncated < 0)) | |
1181 | truncated = 0; | |
1182 | ||
1183 | if (ieee80211_is_data(hdr->frame_control)) { | |
1184 | int hdrlen = ieee80211_hdrlen(hdr->frame_control); | |
1185 | int ivlen = 0, icvlen = 4; /* also FCS */ | |
9b26b500 | 1186 | |
9b26b500 JB |
1187 | pkt = alloc_skb(pktsize, GFP_KERNEL); |
1188 | if (!pkt) | |
1189 | goto report; | |
f444eb10 | 1190 | |
59ae1d12 | 1191 | skb_put_data(pkt, pktdata, hdrlen); |
f444eb10 JB |
1192 | pktdata += hdrlen; |
1193 | pktsize -= hdrlen; | |
1194 | ||
1195 | if (ieee80211_has_protected(hdr->frame_control)) { | |
7abc4632 JB |
1196 | /* |
1197 | * This is unlocked and using gtk_i(c)vlen, | |
1198 | * but since everything is under RTNL still | |
1199 | * that's not really a problem - changing | |
1200 | * it would be difficult. | |
1201 | */ | |
f444eb10 JB |
1202 | if (is_multicast_ether_addr(hdr->addr1)) { |
1203 | ivlen = mvm->gtk_ivlen; | |
1204 | icvlen += mvm->gtk_icvlen; | |
1205 | } else { | |
1206 | ivlen = mvm->ptk_ivlen; | |
1207 | icvlen += mvm->ptk_icvlen; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | /* if truncated, FCS/ICV is (partially) gone */ | |
1212 | if (truncated >= icvlen) { | |
1213 | icvlen = 0; | |
1214 | truncated -= icvlen; | |
1215 | } else { | |
1216 | icvlen -= truncated; | |
1217 | truncated = 0; | |
1218 | } | |
1219 | ||
1220 | pktsize -= ivlen + icvlen; | |
1221 | pktdata += ivlen; | |
1222 | ||
59ae1d12 | 1223 | skb_put_data(pkt, pktdata, pktsize); |
f444eb10 | 1224 | |
9b26b500 JB |
1225 | if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
1226 | goto report; | |
1227 | wakeup.packet = pkt->data; | |
1228 | wakeup.packet_present_len = pkt->len; | |
f444eb10 | 1229 | wakeup.packet_len = pkt->len - truncated; |
9b26b500 JB |
1230 | wakeup.packet_80211 = false; |
1231 | } else { | |
f444eb10 JB |
1232 | int fcslen = 4; |
1233 | ||
1234 | if (truncated >= 4) { | |
1235 | truncated -= 4; | |
1236 | fcslen = 0; | |
1237 | } else { | |
1238 | fcslen -= truncated; | |
1239 | truncated = 0; | |
1240 | } | |
1241 | pktsize -= fcslen; | |
9b26b500 JB |
1242 | wakeup.packet = status->wake_packet; |
1243 | wakeup.packet_present_len = pktsize; | |
f444eb10 | 1244 | wakeup.packet_len = pktlen - truncated; |
9b26b500 JB |
1245 | wakeup.packet_80211 = true; |
1246 | } | |
1247 | } | |
1248 | ||
1249 | report: | |
1250 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
1251 | kfree_skb(pkt); | |
7abc4632 | 1252 | } |
9b26b500 | 1253 | |
6d9d32b8 JB |
1254 | static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, |
1255 | struct ieee80211_key_seq *seq) | |
1256 | { | |
1257 | u64 pn; | |
1258 | ||
1259 | pn = le64_to_cpu(sc->pn); | |
1260 | seq->ccmp.pn[0] = pn >> 40; | |
1261 | seq->ccmp.pn[1] = pn >> 32; | |
1262 | seq->ccmp.pn[2] = pn >> 24; | |
1263 | seq->ccmp.pn[3] = pn >> 16; | |
1264 | seq->ccmp.pn[4] = pn >> 8; | |
1265 | seq->ccmp.pn[5] = pn; | |
1266 | } | |
1267 | ||
1268 | static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, | |
1269 | struct ieee80211_key_seq *seq) | |
1270 | { | |
1271 | seq->tkip.iv32 = le32_to_cpu(sc->iv32); | |
1272 | seq->tkip.iv16 = le16_to_cpu(sc->iv16); | |
1273 | } | |
1274 | ||
f5e28eac JB |
1275 | static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs, |
1276 | struct ieee80211_sta *sta, | |
6d9d32b8 JB |
1277 | struct ieee80211_key_conf *key) |
1278 | { | |
1279 | int tid; | |
1280 | ||
1281 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1282 | ||
f5e28eac JB |
1283 | if (sta && iwl_mvm_has_new_rx_api(mvm)) { |
1284 | struct iwl_mvm_sta *mvmsta; | |
1285 | struct iwl_mvm_key_pn *ptk_pn; | |
6d9d32b8 | 1286 | |
f5e28eac JB |
1287 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
1288 | ||
1289 | ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx], | |
1290 | lockdep_is_held(&mvm->mutex)); | |
1291 | if (WARN_ON(!ptk_pn)) | |
1292 | return; | |
1293 | ||
1294 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1295 | struct ieee80211_key_seq seq = {}; | |
1296 | int i; | |
1297 | ||
1298 | iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); | |
1299 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1300 | for (i = 1; i < mvm->trans->num_rx_queues; i++) | |
1301 | memcpy(ptk_pn->q[i].pn[tid], | |
1302 | seq.ccmp.pn, IEEE80211_CCMP_PN_LEN); | |
1303 | } | |
1304 | } else { | |
1305 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1306 | struct ieee80211_key_seq seq = {}; | |
1307 | ||
1308 | iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); | |
1309 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1310 | } | |
6d9d32b8 JB |
1311 | } |
1312 | } | |
1313 | ||
1314 | static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs, | |
1315 | struct ieee80211_key_conf *key) | |
1316 | { | |
1317 | int tid; | |
1318 | ||
1319 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1320 | ||
1321 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1322 | struct ieee80211_key_seq seq = {}; | |
1323 | ||
1324 | iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq); | |
1325 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1326 | } | |
1327 | } | |
1328 | ||
f5e28eac JB |
1329 | static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm, |
1330 | struct ieee80211_key_conf *key, | |
3afec639 | 1331 | struct iwl_wowlan_status *status) |
6d9d32b8 | 1332 | { |
2afa6a73 | 1333 | union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc; |
6d9d32b8 JB |
1334 | |
1335 | switch (key->cipher) { | |
1336 | case WLAN_CIPHER_SUITE_CCMP: | |
f5e28eac | 1337 | iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key); |
6d9d32b8 JB |
1338 | break; |
1339 | case WLAN_CIPHER_SUITE_TKIP: | |
1340 | iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key); | |
1341 | break; | |
1342 | default: | |
1343 | WARN_ON(1); | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | struct iwl_mvm_d3_gtk_iter_data { | |
f5e28eac | 1348 | struct iwl_mvm *mvm; |
3afec639 | 1349 | struct iwl_wowlan_status *status; |
6d9d32b8 JB |
1350 | void *last_gtk; |
1351 | u32 cipher; | |
1352 | bool find_phase, unhandled_cipher; | |
1353 | int num_keys; | |
1354 | }; | |
1355 | ||
59fd4bf6 | 1356 | static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, |
6d9d32b8 JB |
1357 | struct ieee80211_vif *vif, |
1358 | struct ieee80211_sta *sta, | |
1359 | struct ieee80211_key_conf *key, | |
1360 | void *_data) | |
1361 | { | |
1362 | struct iwl_mvm_d3_gtk_iter_data *data = _data; | |
1363 | ||
1364 | if (data->unhandled_cipher) | |
1365 | return; | |
1366 | ||
1367 | switch (key->cipher) { | |
1368 | case WLAN_CIPHER_SUITE_WEP40: | |
1369 | case WLAN_CIPHER_SUITE_WEP104: | |
1370 | /* ignore WEP completely, nothing to do */ | |
1371 | return; | |
1372 | case WLAN_CIPHER_SUITE_CCMP: | |
1373 | case WLAN_CIPHER_SUITE_TKIP: | |
1374 | /* we support these */ | |
1375 | break; | |
1376 | default: | |
1377 | /* everything else (even CMAC for MFP) - disconnect from AP */ | |
1378 | data->unhandled_cipher = true; | |
1379 | return; | |
1380 | } | |
1381 | ||
1382 | data->num_keys++; | |
1383 | ||
1384 | /* | |
1385 | * pairwise key - update sequence counters only; | |
1386 | * note that this assumes no TDLS sessions are active | |
1387 | */ | |
1388 | if (sta) { | |
1389 | struct ieee80211_key_seq seq = {}; | |
2afa6a73 LC |
1390 | union iwl_all_tsc_rsc *sc = |
1391 | &data->status->gtk[0].rsc.all_tsc_rsc; | |
6d9d32b8 JB |
1392 | |
1393 | if (data->find_phase) | |
1394 | return; | |
1395 | ||
1396 | switch (key->cipher) { | |
1397 | case WLAN_CIPHER_SUITE_CCMP: | |
f5e28eac JB |
1398 | iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc, |
1399 | sta, key); | |
6645d5e4 | 1400 | atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn)); |
6d9d32b8 JB |
1401 | break; |
1402 | case WLAN_CIPHER_SUITE_TKIP: | |
1403 | iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq); | |
1404 | iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key); | |
1ad4f639 EP |
1405 | atomic64_set(&key->tx_pn, |
1406 | (u64)seq.tkip.iv16 | | |
1407 | ((u64)seq.tkip.iv32 << 16)); | |
6d9d32b8 JB |
1408 | break; |
1409 | } | |
6d9d32b8 JB |
1410 | |
1411 | /* that's it for this key */ | |
1412 | return; | |
1413 | } | |
1414 | ||
1415 | if (data->find_phase) { | |
1416 | data->last_gtk = key; | |
1417 | data->cipher = key->cipher; | |
1418 | return; | |
1419 | } | |
1420 | ||
1421 | if (data->status->num_of_gtk_rekeys) | |
1422 | ieee80211_remove_key(key); | |
1423 | else if (data->last_gtk == key) | |
f5e28eac | 1424 | iwl_mvm_set_key_rx_seq(data->mvm, key, data->status); |
6d9d32b8 JB |
1425 | } |
1426 | ||
1427 | static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, | |
1428 | struct ieee80211_vif *vif, | |
3afec639 | 1429 | struct iwl_wowlan_status *status) |
6d9d32b8 JB |
1430 | { |
1431 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1432 | struct iwl_mvm_d3_gtk_iter_data gtkdata = { | |
f5e28eac | 1433 | .mvm = mvm, |
6d9d32b8 JB |
1434 | .status = status, |
1435 | }; | |
431591cc EP |
1436 | u32 disconnection_reasons = |
1437 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1438 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; | |
6d9d32b8 JB |
1439 | |
1440 | if (!status || !vif->bss_conf.bssid) | |
1441 | return false; | |
1442 | ||
431591cc EP |
1443 | if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons) |
1444 | return false; | |
1445 | ||
6d9d32b8 JB |
1446 | /* find last GTK that we used initially, if any */ |
1447 | gtkdata.find_phase = true; | |
1448 | ieee80211_iter_keys(mvm->hw, vif, | |
59fd4bf6 | 1449 | iwl_mvm_d3_update_keys, >kdata); |
6d9d32b8 JB |
1450 | /* not trying to keep connections with MFP/unhandled ciphers */ |
1451 | if (gtkdata.unhandled_cipher) | |
1452 | return false; | |
1453 | if (!gtkdata.num_keys) | |
cfa88893 | 1454 | goto out; |
6d9d32b8 JB |
1455 | if (!gtkdata.last_gtk) |
1456 | return false; | |
1457 | ||
1458 | /* | |
1459 | * invalidate all other GTKs that might still exist and update | |
1460 | * the one that we used | |
1461 | */ | |
1462 | gtkdata.find_phase = false; | |
1463 | ieee80211_iter_keys(mvm->hw, vif, | |
59fd4bf6 | 1464 | iwl_mvm_d3_update_keys, >kdata); |
6d9d32b8 JB |
1465 | |
1466 | if (status->num_of_gtk_rekeys) { | |
1467 | struct ieee80211_key_conf *key; | |
1468 | struct { | |
1469 | struct ieee80211_key_conf conf; | |
1470 | u8 key[32]; | |
1471 | } conf = { | |
1472 | .conf.cipher = gtkdata.cipher, | |
2afa6a73 LC |
1473 | .conf.keyidx = |
1474 | iwlmvm_wowlan_gtk_idx(&status->gtk[0]), | |
6d9d32b8 | 1475 | }; |
11a0513c | 1476 | __be64 replay_ctr; |
6d9d32b8 JB |
1477 | |
1478 | switch (gtkdata.cipher) { | |
1479 | case WLAN_CIPHER_SUITE_CCMP: | |
1480 | conf.conf.keylen = WLAN_KEY_LEN_CCMP; | |
2afa6a73 | 1481 | memcpy(conf.conf.key, status->gtk[0].key, |
6d9d32b8 JB |
1482 | WLAN_KEY_LEN_CCMP); |
1483 | break; | |
1484 | case WLAN_CIPHER_SUITE_TKIP: | |
1485 | conf.conf.keylen = WLAN_KEY_LEN_TKIP; | |
2afa6a73 | 1486 | memcpy(conf.conf.key, status->gtk[0].key, 16); |
6d9d32b8 JB |
1487 | /* leave TX MIC key zeroed, we don't use it anyway */ |
1488 | memcpy(conf.conf.key + | |
1489 | NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, | |
2afa6a73 | 1490 | status->gtk[0].tkip_mic_key, 8); |
6d9d32b8 JB |
1491 | break; |
1492 | } | |
1493 | ||
1494 | key = ieee80211_gtk_rekey_add(vif, &conf.conf); | |
1495 | if (IS_ERR(key)) | |
1496 | return false; | |
f5e28eac | 1497 | iwl_mvm_set_key_rx_seq(mvm, key, status); |
6d9d32b8 | 1498 | |
2afa6a73 LC |
1499 | replay_ctr = |
1500 | cpu_to_be64(le64_to_cpu(status->replay_ctr)); | |
11a0513c | 1501 | |
6d9d32b8 JB |
1502 | ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, |
1503 | (void *)&replay_ctr, GFP_KERNEL); | |
1504 | } | |
1505 | ||
cfa88893 | 1506 | out: |
6d9d32b8 JB |
1507 | mvmvif->seqno_valid = true; |
1508 | /* +0x10 because the set API expects next-to-use, not last-used */ | |
1509 | mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10; | |
1510 | ||
1511 | return true; | |
1512 | } | |
1513 | ||
2afa6a73 LC |
1514 | struct iwl_wowlan_status *iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm) |
1515 | { | |
1516 | struct iwl_wowlan_status *v7, *status; | |
1517 | struct iwl_host_cmd cmd = { | |
1518 | .id = WOWLAN_GET_STATUSES, | |
1519 | .flags = CMD_WANT_SKB, | |
1520 | }; | |
1521 | int ret, len, status_size; | |
1522 | ||
1523 | lockdep_assert_held(&mvm->mutex); | |
1524 | ||
1525 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1526 | if (ret) { | |
1527 | IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); | |
1528 | return ERR_PTR(ret); | |
1529 | } | |
1530 | ||
1531 | if (!fw_has_api(&mvm->fw->ucode_capa, | |
1532 | IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) { | |
1533 | struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; | |
1534 | int data_size; | |
1535 | ||
1536 | status_size = sizeof(*v6); | |
1537 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); | |
1538 | ||
1539 | if (len < status_size) { | |
1540 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
1541 | status = ERR_PTR(-EIO); | |
1542 | goto out_free_resp; | |
1543 | } | |
1544 | ||
1545 | data_size = ALIGN(le32_to_cpu(v6->wake_packet_bufsize), 4); | |
1546 | ||
1547 | if (len != (status_size + data_size)) { | |
1548 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
1549 | status = ERR_PTR(-EIO); | |
1550 | goto out_free_resp; | |
1551 | } | |
1552 | ||
1553 | status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL); | |
1554 | if (!status) | |
1555 | goto out_free_resp; | |
1556 | ||
1557 | BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > | |
1558 | sizeof(status->gtk[0].key)); | |
1559 | BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) > | |
1560 | sizeof(status->gtk[0].tkip_mic_key)); | |
1561 | ||
1562 | /* copy GTK info to the right place */ | |
1563 | memcpy(status->gtk[0].key, v6->gtk.decrypt_key, | |
1564 | sizeof(v6->gtk.decrypt_key)); | |
1565 | memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key, | |
1566 | sizeof(v6->gtk.tkip_mic_key)); | |
1567 | memcpy(&status->gtk[0].rsc, &v6->gtk.rsc, | |
1568 | sizeof(status->gtk[0].rsc)); | |
1569 | ||
1570 | /* hardcode the key length to 16 since v6 only supports 16 */ | |
1571 | status->gtk[0].key_len = 16; | |
1572 | ||
1573 | /* | |
1574 | * The key index only uses 2 bits (values 0 to 3) and | |
1575 | * we always set bit 7 which means this is the | |
1576 | * currently used key. | |
1577 | */ | |
1578 | status->gtk[0].key_flags = v6->gtk.key_index | BIT(7); | |
1579 | ||
1580 | status->replay_ctr = v6->replay_ctr; | |
1581 | ||
1582 | /* everything starting from pattern_number is identical */ | |
1583 | memcpy(&status->pattern_number, &v6->pattern_number, | |
1584 | offsetof(struct iwl_wowlan_status, wake_packet) - | |
1585 | offsetof(struct iwl_wowlan_status, pattern_number) + | |
1586 | data_size); | |
1587 | ||
1588 | goto out_free_resp; | |
1589 | } | |
1590 | ||
1591 | v7 = (void *)cmd.resp_pkt->data; | |
1592 | status_size = sizeof(*v7); | |
1593 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); | |
1594 | ||
1595 | if (len < status_size) { | |
1596 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
1597 | status = ERR_PTR(-EIO); | |
1598 | goto out_free_resp; | |
1599 | } | |
1600 | ||
1601 | if (len != (status_size + | |
1602 | ALIGN(le32_to_cpu(v7->wake_packet_bufsize), 4))) { | |
1603 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
1604 | status = ERR_PTR(-EIO); | |
1605 | goto out_free_resp; | |
1606 | } | |
1607 | ||
1608 | status = kmemdup(v7, len, GFP_KERNEL); | |
1609 | ||
1610 | out_free_resp: | |
1611 | iwl_free_resp(&cmd); | |
1612 | return status; | |
1613 | } | |
1614 | ||
ec12f457 | 1615 | static struct iwl_wowlan_status * |
f57d104f | 1616 | iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm) |
7abc4632 | 1617 | { |
2afa6a73 | 1618 | int ret; |
7abc4632 | 1619 | |
7abc4632 | 1620 | /* only for tracing for now */ |
a1022927 | 1621 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL); |
7abc4632 JB |
1622 | if (ret) |
1623 | IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); | |
1624 | ||
2afa6a73 | 1625 | return iwl_mvm_send_wowlan_get_status(mvm); |
ec12f457 LC |
1626 | } |
1627 | ||
1628 | /* releases the MVM mutex */ | |
1629 | static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, | |
1630 | struct ieee80211_vif *vif) | |
1631 | { | |
1632 | struct iwl_wowlan_status_data status; | |
1633 | struct iwl_wowlan_status *fw_status; | |
1634 | int i; | |
1635 | bool keep; | |
ec12f457 LC |
1636 | struct iwl_mvm_sta *mvm_ap_sta; |
1637 | ||
f57d104f | 1638 | fw_status = iwl_mvm_get_wakeup_status(mvm); |
ec12f457 LC |
1639 | if (IS_ERR_OR_NULL(fw_status)) |
1640 | goto out_unlock; | |
3afec639 EG |
1641 | |
1642 | status.pattern_number = le16_to_cpu(fw_status->pattern_number); | |
1643 | for (i = 0; i < 8; i++) | |
1644 | status.qos_seq_ctr[i] = | |
1645 | le16_to_cpu(fw_status->qos_seq_ctr[i]); | |
1646 | status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons); | |
1647 | status.wake_packet_length = | |
1648 | le32_to_cpu(fw_status->wake_packet_length); | |
1649 | status.wake_packet_bufsize = | |
1650 | le32_to_cpu(fw_status->wake_packet_bufsize); | |
1651 | status.wake_packet = fw_status->wake_packet; | |
7abc4632 | 1652 | |
6d9d32b8 | 1653 | /* still at hard-coded place 0 for D3 image */ |
13303c0f SS |
1654 | mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0); |
1655 | if (!mvm_ap_sta) | |
ec12f457 | 1656 | goto out_free; |
6d9d32b8 | 1657 | |
6d9d32b8 JB |
1658 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
1659 | u16 seq = status.qos_seq_ctr[i]; | |
1660 | /* firmware stores last-used value, we store next value */ | |
1661 | seq += 0x10; | |
1662 | mvm_ap_sta->tid_data[i].seq_number = seq; | |
1663 | } | |
1664 | ||
286ca8eb | 1665 | if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { |
ba7136f3 AM |
1666 | i = mvm->offload_tid; |
1667 | iwl_trans_set_q_ptrs(mvm->trans, | |
1668 | mvm_ap_sta->tid_data[i].txq_id, | |
1669 | mvm_ap_sta->tid_data[i].seq_number >> 4); | |
1670 | } | |
1671 | ||
7abc4632 JB |
1672 | /* now we have all the data we need, unlock to avoid mac80211 issues */ |
1673 | mutex_unlock(&mvm->mutex); | |
1674 | ||
6d9d32b8 JB |
1675 | iwl_mvm_report_wakeup_reasons(mvm, vif, &status); |
1676 | ||
3afec639 | 1677 | keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status); |
6d9d32b8 | 1678 | |
ec12f457 | 1679 | kfree(fw_status); |
6d9d32b8 | 1680 | return keep; |
7abc4632 | 1681 | |
ec12f457 LC |
1682 | out_free: |
1683 | kfree(fw_status); | |
1684 | out_unlock: | |
7abc4632 | 1685 | mutex_unlock(&mvm->mutex); |
6d9d32b8 | 1686 | return false; |
9b26b500 JB |
1687 | } |
1688 | ||
e4fe5d4b IP |
1689 | #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ |
1690 | IWL_SCAN_MAX_PROFILES) | |
1691 | ||
8ed4e659 LC |
1692 | struct iwl_mvm_nd_query_results { |
1693 | u32 matched_profiles; | |
e4fe5d4b | 1694 | u8 matches[ND_QUERY_BUF_LEN]; |
8ed4e659 LC |
1695 | }; |
1696 | ||
1697 | static int | |
1698 | iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, | |
1699 | struct iwl_mvm_nd_query_results *results) | |
b04998f3 LC |
1700 | { |
1701 | struct iwl_scan_offload_profiles_query *query; | |
1702 | struct iwl_host_cmd cmd = { | |
1703 | .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, | |
1704 | .flags = CMD_WANT_SKB, | |
1705 | }; | |
1706 | int ret, len; | |
e4fe5d4b | 1707 | size_t query_len, matches_len; |
b04998f3 LC |
1708 | |
1709 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1710 | if (ret) { | |
1711 | IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); | |
8ed4e659 | 1712 | return ret; |
b04998f3 LC |
1713 | } |
1714 | ||
e4fe5d4b IP |
1715 | if (fw_has_api(&mvm->fw->ucode_capa, |
1716 | IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { | |
1717 | query_len = sizeof(struct iwl_scan_offload_profiles_query); | |
1718 | matches_len = sizeof(struct iwl_scan_offload_profile_match) * | |
1719 | IWL_SCAN_MAX_PROFILES; | |
1720 | } else { | |
1721 | query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); | |
1722 | matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * | |
1723 | IWL_SCAN_MAX_PROFILES; | |
1724 | } | |
1725 | ||
b04998f3 | 1726 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); |
e4fe5d4b | 1727 | if (len < query_len) { |
b04998f3 | 1728 | IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); |
8ed4e659 | 1729 | ret = -EIO; |
b04998f3 LC |
1730 | goto out_free_resp; |
1731 | } | |
1732 | ||
1733 | query = (void *)cmd.resp_pkt->data; | |
1734 | ||
8ed4e659 | 1735 | results->matched_profiles = le32_to_cpu(query->matched_profiles); |
e4fe5d4b | 1736 | memcpy(results->matches, query->matches, matches_len); |
b04998f3 | 1737 | |
6bbd5521 | 1738 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
484b3d13 LC |
1739 | mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); |
1740 | #endif | |
1741 | ||
b04998f3 LC |
1742 | out_free_resp: |
1743 | iwl_free_resp(&cmd); | |
1744 | return ret; | |
1745 | } | |
1746 | ||
e4fe5d4b IP |
1747 | static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, |
1748 | struct iwl_mvm_nd_query_results *query, | |
1749 | int idx) | |
1750 | { | |
1751 | int n_chans = 0, i; | |
1752 | ||
1753 | if (fw_has_api(&mvm->fw->ucode_capa, | |
1754 | IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { | |
1755 | struct iwl_scan_offload_profile_match *matches = | |
1756 | (struct iwl_scan_offload_profile_match *)query->matches; | |
1757 | ||
1758 | for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) | |
1759 | n_chans += hweight8(matches[idx].matching_channels[i]); | |
1760 | } else { | |
1761 | struct iwl_scan_offload_profile_match_v1 *matches = | |
1762 | (struct iwl_scan_offload_profile_match_v1 *)query->matches; | |
1763 | ||
1764 | for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) | |
1765 | n_chans += hweight8(matches[idx].matching_channels[i]); | |
1766 | } | |
1767 | ||
1768 | return n_chans; | |
1769 | } | |
1770 | ||
1771 | static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, | |
1772 | struct iwl_mvm_nd_query_results *query, | |
1773 | struct cfg80211_wowlan_nd_match *match, | |
1774 | int idx) | |
1775 | { | |
1776 | int i; | |
1777 | ||
1778 | if (fw_has_api(&mvm->fw->ucode_capa, | |
1779 | IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { | |
1780 | struct iwl_scan_offload_profile_match *matches = | |
1781 | (struct iwl_scan_offload_profile_match *)query->matches; | |
1782 | ||
1783 | for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) | |
1784 | if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) | |
1785 | match->channels[match->n_channels++] = | |
1786 | mvm->nd_channels[i]->center_freq; | |
1787 | } else { | |
1788 | struct iwl_scan_offload_profile_match_v1 *matches = | |
1789 | (struct iwl_scan_offload_profile_match_v1 *)query->matches; | |
1790 | ||
1791 | for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) | |
1792 | if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) | |
1793 | match->channels[match->n_channels++] = | |
1794 | mvm->nd_channels[i]->center_freq; | |
1795 | } | |
1796 | } | |
1797 | ||
2021a89d LC |
1798 | static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, |
1799 | struct ieee80211_vif *vif) | |
1800 | { | |
d9718da8 | 1801 | struct cfg80211_wowlan_nd_info *net_detect = NULL; |
2021a89d LC |
1802 | struct cfg80211_wowlan_wakeup wakeup = { |
1803 | .pattern_idx = -1, | |
1804 | }; | |
1805 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
8ed4e659 | 1806 | struct iwl_mvm_nd_query_results query; |
2021a89d | 1807 | struct iwl_wowlan_status *fw_status; |
d9718da8 | 1808 | unsigned long matched_profiles; |
2021a89d | 1809 | u32 reasons = 0; |
e4fe5d4b | 1810 | int i, n_matches, ret; |
2021a89d | 1811 | |
f57d104f | 1812 | fw_status = iwl_mvm_get_wakeup_status(mvm); |
2fc863a5 | 1813 | if (!IS_ERR_OR_NULL(fw_status)) { |
2021a89d | 1814 | reasons = le32_to_cpu(fw_status->wakeup_reasons); |
2fc863a5 HD |
1815 | kfree(fw_status); |
1816 | } | |
2021a89d LC |
1817 | |
1818 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) | |
1819 | wakeup.rfkill_release = true; | |
1820 | ||
b04998f3 LC |
1821 | if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) |
1822 | goto out; | |
1823 | ||
8ed4e659 LC |
1824 | ret = iwl_mvm_netdetect_query_results(mvm, &query); |
1825 | if (ret || !query.matched_profiles) { | |
2021a89d | 1826 | wakeup_report = NULL; |
b04998f3 | 1827 | goto out; |
2021a89d LC |
1828 | } |
1829 | ||
8ed4e659 | 1830 | matched_profiles = query.matched_profiles; |
d9718da8 LC |
1831 | if (mvm->n_nd_match_sets) { |
1832 | n_matches = hweight_long(matched_profiles); | |
1833 | } else { | |
1834 | IWL_ERR(mvm, "no net detect match information available\n"); | |
1835 | n_matches = 0; | |
1836 | } | |
1837 | ||
83ea00d6 | 1838 | net_detect = kzalloc(struct_size(net_detect, matches, n_matches), |
d9718da8 LC |
1839 | GFP_KERNEL); |
1840 | if (!net_detect || !n_matches) | |
1841 | goto out_report_nd; | |
1842 | ||
1843 | for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { | |
1844 | struct cfg80211_wowlan_nd_match *match; | |
ae90c2e5 | 1845 | int idx, n_channels = 0; |
8ed4e659 | 1846 | |
e4fe5d4b | 1847 | n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i); |
d9718da8 | 1848 | |
83ea00d6 | 1849 | match = kzalloc(struct_size(match, channels, n_channels), |
8ed4e659 | 1850 | GFP_KERNEL); |
d9718da8 LC |
1851 | if (!match) |
1852 | goto out_report_nd; | |
1853 | ||
8ed4e659 LC |
1854 | net_detect->matches[net_detect->n_matches++] = match; |
1855 | ||
ae90c2e5 LC |
1856 | /* We inverted the order of the SSIDs in the scan |
1857 | * request, so invert the index here. | |
1858 | */ | |
1859 | idx = mvm->n_nd_match_sets - i - 1; | |
1860 | match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; | |
1861 | memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, | |
d9718da8 LC |
1862 | match->ssid.ssid_len); |
1863 | ||
8ed4e659 LC |
1864 | if (mvm->n_nd_channels < n_channels) |
1865 | continue; | |
1866 | ||
e4fe5d4b | 1867 | iwl_mvm_query_set_freqs(mvm, &query, match, i); |
d9718da8 LC |
1868 | } |
1869 | ||
1870 | out_report_nd: | |
1871 | wakeup.net_detect = net_detect; | |
b04998f3 | 1872 | out: |
d9718da8 LC |
1873 | iwl_mvm_free_nd(mvm); |
1874 | ||
2021a89d LC |
1875 | mutex_unlock(&mvm->mutex); |
1876 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
d9718da8 LC |
1877 | |
1878 | if (net_detect) { | |
1879 | for (i = 0; i < net_detect->n_matches; i++) | |
1880 | kfree(net_detect->matches[i]); | |
1881 | kfree(net_detect); | |
1882 | } | |
2021a89d LC |
1883 | } |
1884 | ||
6d9d32b8 JB |
1885 | static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, |
1886 | struct ieee80211_vif *vif) | |
1887 | { | |
1888 | /* skip the one we keep connection on */ | |
1889 | if (data == vif) | |
1890 | return; | |
1891 | ||
1892 | if (vif->type == NL80211_IFTYPE_STATION) | |
1893 | ieee80211_resume_disconnect(vif); | |
1894 | } | |
1895 | ||
f57d104f SM |
1896 | static int iwl_mvm_check_rt_status(struct iwl_mvm *mvm, |
1897 | struct ieee80211_vif *vif) | |
1898 | { | |
91c28b83 | 1899 | u32 base = mvm->trans->dbg.lmac_error_event_table[0]; |
f57d104f SM |
1900 | struct error_table_start { |
1901 | /* cf. struct iwl_error_event_table */ | |
1902 | u32 valid; | |
1903 | u32 error_id; | |
1904 | } err_info; | |
1905 | ||
1906 | iwl_trans_read_mem_bytes(mvm->trans, base, | |
1907 | &err_info, sizeof(err_info)); | |
1908 | ||
1909 | if (err_info.valid && | |
1910 | err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { | |
1911 | struct cfg80211_wowlan_wakeup wakeup = { | |
1912 | .rfkill_release = true, | |
1913 | }; | |
1914 | ieee80211_report_wowlan_wakeup(vif, &wakeup, GFP_KERNEL); | |
1915 | } | |
1916 | return err_info.valid; | |
1917 | } | |
1918 | ||
debff618 | 1919 | static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) |
8ca151b5 | 1920 | { |
8ca151b5 | 1921 | struct ieee80211_vif *vif = NULL; |
23ae6128 | 1922 | int ret = 1; |
8ca151b5 | 1923 | enum iwl_d3_status d3_status; |
6d9d32b8 | 1924 | bool keep = false; |
23ae6128 MG |
1925 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
1926 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
fcea37b2 LC |
1927 | bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, |
1928 | IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); | |
8ca151b5 JB |
1929 | |
1930 | mutex_lock(&mvm->mutex); | |
1931 | ||
1932 | /* get the BSS vif pointer again */ | |
7f549e2c LC |
1933 | vif = iwl_mvm_get_bss_vif(mvm); |
1934 | if (IS_ERR_OR_NULL(vif)) | |
a500e469 | 1935 | goto err; |
8ca151b5 | 1936 | |
2d8c2615 | 1937 | iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); |
afc66bb7 | 1938 | |
f57d104f SM |
1939 | if (iwl_mvm_check_rt_status(mvm, vif)) { |
1940 | set_bit(STATUS_FW_ERROR, &mvm->trans->status); | |
1941 | iwl_mvm_dump_nic_error_log(mvm); | |
4d75a9eb SM |
1942 | iwl_dbg_tlv_time_point(&mvm->fwrt, |
1943 | IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL); | |
f57d104f | 1944 | iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, |
124e0eba | 1945 | false, 0); |
f57d104f SM |
1946 | ret = 1; |
1947 | goto err; | |
1948 | } | |
1949 | ||
e5f3f215 HD |
1950 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image); |
1951 | if (ret) | |
1952 | goto err; | |
1953 | ||
1954 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
1955 | IWL_INFO(mvm, "Device was reset during suspend\n"); | |
1956 | goto err; | |
1957 | } | |
1958 | ||
fcea37b2 | 1959 | if (d0i3_first) { |
d3b4dc01 HD |
1960 | struct iwl_host_cmd cmd = { |
1961 | .id = D0I3_END_CMD, | |
1962 | .flags = CMD_WANT_SKB, | |
1963 | }; | |
1964 | int len; | |
1965 | ||
1966 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
fcea37b2 LC |
1967 | if (ret < 0) { |
1968 | IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", | |
1969 | ret); | |
1970 | goto err; | |
1971 | } | |
d3b4dc01 HD |
1972 | switch (mvm->cmd_ver.d0i3_resp) { |
1973 | case 0: | |
1974 | break; | |
1975 | case 1: | |
1976 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); | |
1977 | if (len != sizeof(u32)) { | |
1978 | IWL_ERR(mvm, | |
1979 | "Error with D0I3_END_CMD response size (%d)\n", | |
1980 | len); | |
1981 | goto err; | |
1982 | } | |
1983 | if (IWL_D0I3_RESET_REQUIRE & | |
1984 | le32_to_cpu(*(__le32 *)cmd.resp_pkt->data)) { | |
1985 | iwl_write32(mvm->trans, CSR_RESET, | |
1986 | CSR_RESET_REG_FLAG_FORCE_NMI); | |
1987 | iwl_free_resp(&cmd); | |
1988 | } | |
1989 | break; | |
1990 | default: | |
1991 | WARN_ON(1); | |
1992 | } | |
fcea37b2 LC |
1993 | } |
1994 | ||
47c8b154 JD |
1995 | /* |
1996 | * Query the current location and source from the D3 firmware so we | |
1997 | * can play it back when we re-intiailize the D0 firmware | |
1998 | */ | |
1999 | iwl_mvm_update_changed_regdom(mvm); | |
2000 | ||
6ce1e5c0 GA |
2001 | /* Re-configure PPAG settings */ |
2002 | iwl_mvm_ppag_send_cmd(mvm); | |
2003 | ||
42ce76d6 LC |
2004 | if (!unified_image) |
2005 | /* Re-configure default SAR profile */ | |
2006 | iwl_mvm_sar_select_profile(mvm, 1, 1); | |
2007 | ||
2021a89d | 2008 | if (mvm->net_detect) { |
5a143db8 LC |
2009 | /* If this is a non-unified image, we restart the FW, |
2010 | * so no need to stop the netdetect scan. If that | |
2011 | * fails, continue and try to get the wake-up reasons, | |
2012 | * but trigger a HW restart by keeping a failure code | |
2013 | * in ret. | |
2014 | */ | |
2015 | if (unified_image) | |
2016 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, | |
2017 | false); | |
2018 | ||
2021a89d | 2019 | iwl_mvm_query_netdetect_reasons(mvm, vif); |
e0ede177 LC |
2020 | /* has unlocked the mutex, so skip that */ |
2021 | goto out; | |
2021a89d LC |
2022 | } else { |
2023 | keep = iwl_mvm_query_wakeup_reasons(mvm, vif); | |
78c9df66 | 2024 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
2021a89d LC |
2025 | if (keep) |
2026 | mvm->keep_vif = vif; | |
0c2ae049 | 2027 | #endif |
e0ede177 LC |
2028 | /* has unlocked the mutex, so skip that */ |
2029 | goto out_iterate; | |
2021a89d | 2030 | } |
8ca151b5 | 2031 | |
a500e469 LC |
2032 | err: |
2033 | iwl_mvm_free_nd(mvm); | |
8ca151b5 JB |
2034 | mutex_unlock(&mvm->mutex); |
2035 | ||
e0ede177 | 2036 | out_iterate: |
6d9d32b8 JB |
2037 | if (!test) |
2038 | ieee80211_iterate_active_interfaces_rtnl(mvm->hw, | |
2039 | IEEE80211_IFACE_ITER_NORMAL, | |
2040 | iwl_mvm_d3_disconnect_iter, keep ? vif : NULL); | |
8ca151b5 | 2041 | |
e0ede177 | 2042 | out: |
fcea37b2 | 2043 | /* no need to reset the device in unified images, if successful */ |
23ae6128 | 2044 | if (unified_image && !ret) { |
fcea37b2 LC |
2045 | /* nothing else to do if we already sent D0I3_END_CMD */ |
2046 | if (d0i3_first) | |
2047 | return 0; | |
2048 | ||
f28b9361 | 2049 | ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); |
fcea37b2 | 2050 | if (!ret) |
23ae6128 MG |
2051 | return 0; |
2052 | } | |
2053 | ||
2054 | /* | |
2055 | * Reconfigure the device in one of the following cases: | |
2056 | * 1. We are not using a unified image | |
2057 | * 2. We are using a unified image but had an error while exiting D3 | |
2058 | */ | |
59cd827f | 2059 | set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); |
23ae6128 | 2060 | |
8ca151b5 JB |
2061 | return 1; |
2062 | } | |
2063 | ||
2d42801b | 2064 | static int iwl_mvm_resume_d3(struct iwl_mvm *mvm) |
debff618 | 2065 | { |
2d42801b EP |
2066 | iwl_trans_resume(mvm->trans); |
2067 | ||
2068 | return __iwl_mvm_resume(mvm, false); | |
2069 | } | |
2070 | ||
2d42801b EP |
2071 | int iwl_mvm_resume(struct ieee80211_hw *hw) |
2072 | { | |
2073 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b7282643 | 2074 | int ret; |
2d42801b | 2075 | |
45745363 | 2076 | ret = iwl_mvm_resume_d3(mvm); |
b7282643 LC |
2077 | |
2078 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; | |
2079 | ||
7d9d0d56 LC |
2080 | iwl_mvm_resume_tcm(mvm); |
2081 | ||
7f8ae00f HD |
2082 | iwl_fw_runtime_resume(&mvm->fwrt); |
2083 | ||
b7282643 | 2084 | return ret; |
debff618 JB |
2085 | } |
2086 | ||
8ca151b5 JB |
2087 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
2088 | { | |
2089 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2090 | ||
2091 | device_set_wakeup_enable(mvm->trans->dev, enabled); | |
2092 | } | |
debff618 JB |
2093 | |
2094 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2095 | static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) | |
2096 | { | |
2097 | struct iwl_mvm *mvm = inode->i_private; | |
2098 | int err; | |
2099 | ||
2100 | if (mvm->d3_test_active) | |
2101 | return -EBUSY; | |
2102 | ||
2103 | file->private_data = inode->i_private; | |
2104 | ||
debff618 JB |
2105 | synchronize_net(); |
2106 | ||
b7282643 LC |
2107 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; |
2108 | ||
7d9d0d56 LC |
2109 | iwl_mvm_pause_tcm(mvm, true); |
2110 | ||
7f8ae00f HD |
2111 | iwl_fw_runtime_suspend(&mvm->fwrt); |
2112 | ||
debff618 JB |
2113 | /* start pseudo D3 */ |
2114 | rtnl_lock(); | |
2115 | err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); | |
2116 | rtnl_unlock(); | |
2117 | if (err > 0) | |
2118 | err = -EINVAL; | |
cfbc6c4c | 2119 | if (err) |
debff618 | 2120 | return err; |
cfbc6c4c | 2121 | |
debff618 | 2122 | mvm->d3_test_active = true; |
78c9df66 | 2123 | mvm->keep_vif = NULL; |
debff618 JB |
2124 | return 0; |
2125 | } | |
2126 | ||
2127 | static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, | |
2128 | size_t count, loff_t *ppos) | |
2129 | { | |
2130 | struct iwl_mvm *mvm = file->private_data; | |
2131 | u32 pme_asserted; | |
2132 | ||
2133 | while (true) { | |
4ed80a86 EP |
2134 | /* read pme_ptr if available */ |
2135 | if (mvm->d3_test_pme_ptr) { | |
2136 | pme_asserted = iwl_trans_read_mem32(mvm->trans, | |
2137 | mvm->d3_test_pme_ptr); | |
2138 | if (pme_asserted) | |
2139 | break; | |
2140 | } | |
2141 | ||
debff618 JB |
2142 | if (msleep_interruptible(100)) |
2143 | break; | |
2144 | } | |
2145 | ||
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, | |
2150 | struct ieee80211_vif *vif) | |
2151 | { | |
78c9df66 EP |
2152 | /* skip the one we keep connection on */ |
2153 | if (_data == vif) | |
2154 | return; | |
2155 | ||
debff618 JB |
2156 | if (vif->type == NL80211_IFTYPE_STATION) |
2157 | ieee80211_connection_loss(vif); | |
2158 | } | |
2159 | ||
2160 | static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) | |
2161 | { | |
2162 | struct iwl_mvm *mvm = inode->i_private; | |
85cd69b8 LC |
2163 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
2164 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
debff618 JB |
2165 | |
2166 | mvm->d3_test_active = false; | |
b7282643 | 2167 | |
2d8c2615 SM |
2168 | iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); |
2169 | ||
31ca09dd | 2170 | rtnl_lock(); |
debff618 | 2171 | __iwl_mvm_resume(mvm, true); |
31ca09dd | 2172 | rtnl_unlock(); |
b7282643 | 2173 | |
7d9d0d56 LC |
2174 | iwl_mvm_resume_tcm(mvm); |
2175 | ||
7f8ae00f HD |
2176 | iwl_fw_runtime_resume(&mvm->fwrt); |
2177 | ||
b7282643 LC |
2178 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; |
2179 | ||
debff618 | 2180 | iwl_abort_notification_waits(&mvm->notif_wait); |
85cd69b8 LC |
2181 | if (!unified_image) { |
2182 | int remaining_time = 10; | |
debff618 | 2183 | |
85cd69b8 LC |
2184 | ieee80211_restart_hw(mvm->hw); |
2185 | ||
2186 | /* wait for restart and disconnect all interfaces */ | |
2187 | while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2188 | remaining_time > 0) { | |
2189 | remaining_time--; | |
2190 | msleep(1000); | |
2191 | } | |
debff618 | 2192 | |
85cd69b8 LC |
2193 | if (remaining_time == 0) |
2194 | IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); | |
2195 | } | |
debff618 JB |
2196 | |
2197 | ieee80211_iterate_active_interfaces_atomic( | |
2198 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
78c9df66 | 2199 | iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); |
debff618 | 2200 | |
debff618 JB |
2201 | return 0; |
2202 | } | |
2203 | ||
2204 | const struct file_operations iwl_dbgfs_d3_test_ops = { | |
2205 | .llseek = no_llseek, | |
2206 | .open = iwl_mvm_d3_test_open, | |
2207 | .read = iwl_mvm_d3_test_read, | |
2208 | .release = iwl_mvm_d3_test_release, | |
2209 | }; | |
2210 | #endif |