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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 | * | |
8 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
25 | * in the file called LICENSE.GPL. | |
26 | * | |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | ||
64 | #include <net/cfg80211.h> | |
65 | #include <net/ipv6.h> | |
66 | #include "iwl-modparams.h" | |
67 | #include "fw-api.h" | |
68 | #include "mvm.h" | |
69 | ||
70 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, | |
71 | struct ieee80211_vif *vif, | |
72 | struct cfg80211_gtk_rekey_data *data) | |
73 | { | |
74 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
75 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
76 | ||
77 | if (iwlwifi_mod_params.sw_crypto) | |
78 | return; | |
79 | ||
80 | mutex_lock(&mvm->mutex); | |
81 | ||
82 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); | |
83 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); | |
84 | mvmvif->rekey_data.replay_ctr = | |
85 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
86 | mvmvif->rekey_data.valid = true; | |
87 | ||
88 | mutex_unlock(&mvm->mutex); | |
89 | } | |
90 | ||
91 | #if IS_ENABLED(CONFIG_IPV6) | |
92 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, | |
93 | struct ieee80211_vif *vif, | |
94 | struct inet6_dev *idev) | |
95 | { | |
96 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
97 | struct inet6_ifaddr *ifa; | |
98 | int idx = 0; | |
99 | ||
a3777e0f | 100 | read_lock_bh(&idev->lock); |
8ca151b5 JB |
101 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
102 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; | |
103 | idx++; | |
104 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS) | |
105 | break; | |
106 | } | |
a3777e0f | 107 | read_unlock_bh(&idev->lock); |
8ca151b5 JB |
108 | |
109 | mvmvif->num_target_ipv6_addrs = idx; | |
110 | } | |
111 | #endif | |
112 | ||
113 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, | |
114 | struct ieee80211_vif *vif, int idx) | |
115 | { | |
116 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
117 | ||
118 | mvmvif->tx_key_idx = idx; | |
119 | } | |
120 | ||
121 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) | |
122 | { | |
123 | int i; | |
124 | ||
125 | for (i = 0; i < IWL_P1K_SIZE; i++) | |
126 | out[i] = cpu_to_le16(p1k[i]); | |
127 | } | |
128 | ||
129 | struct wowlan_key_data { | |
130 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
131 | struct iwl_wowlan_tkip_params_cmd *tkip; | |
132 | bool error, use_rsc_tsc, use_tkip; | |
133 | int gtk_key_idx; | |
134 | }; | |
135 | ||
136 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, | |
137 | struct ieee80211_vif *vif, | |
138 | struct ieee80211_sta *sta, | |
139 | struct ieee80211_key_conf *key, | |
140 | void *_data) | |
141 | { | |
142 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
143 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
144 | struct wowlan_key_data *data = _data; | |
145 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
146 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
147 | struct iwl_p1k_cache *rx_p1ks; | |
148 | u8 *rx_mic_key; | |
149 | struct ieee80211_key_seq seq; | |
150 | u32 cur_rx_iv32 = 0; | |
151 | u16 p1k[IWL_P1K_SIZE]; | |
152 | int ret, i; | |
153 | ||
154 | mutex_lock(&mvm->mutex); | |
155 | ||
156 | switch (key->cipher) { | |
157 | case WLAN_CIPHER_SUITE_WEP40: | |
158 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ | |
159 | struct { | |
160 | struct iwl_mvm_wep_key_cmd wep_key_cmd; | |
161 | struct iwl_mvm_wep_key wep_key; | |
162 | } __packed wkc = { | |
163 | .wep_key_cmd.mac_id_n_color = | |
164 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
165 | mvmvif->color)), | |
166 | .wep_key_cmd.num_keys = 1, | |
167 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ | |
168 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, | |
169 | .wep_key.key_index = key->keyidx, | |
170 | .wep_key.key_size = key->keylen, | |
171 | }; | |
172 | ||
173 | /* | |
174 | * This will fail -- the key functions don't set support | |
175 | * pairwise WEP keys. However, that's better than silently | |
176 | * failing WoWLAN. Or maybe not? | |
177 | */ | |
178 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
179 | break; | |
180 | ||
181 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); | |
182 | if (key->keyidx == mvmvif->tx_key_idx) { | |
183 | /* TX key must be at offset 0 */ | |
184 | wkc.wep_key.key_offset = 0; | |
185 | } else { | |
186 | /* others start at 1 */ | |
187 | data->gtk_key_idx++; | |
188 | wkc.wep_key.key_offset = data->gtk_key_idx; | |
189 | } | |
190 | ||
191 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC, | |
192 | sizeof(wkc), &wkc); | |
193 | data->error = ret != 0; | |
194 | ||
195 | /* don't upload key again */ | |
196 | goto out_unlock; | |
197 | } | |
198 | default: | |
199 | data->error = true; | |
200 | goto out_unlock; | |
201 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
202 | /* | |
203 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them | |
204 | * but we also shouldn't abort suspend due to that. It does have | |
205 | * support for the IGTK key renewal, but doesn't really use the | |
206 | * IGTK for anything. This means we could spuriously wake up or | |
207 | * be deauthenticated, but that was considered acceptable. | |
208 | */ | |
209 | goto out_unlock; | |
210 | case WLAN_CIPHER_SUITE_TKIP: | |
211 | if (sta) { | |
212 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; | |
213 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
214 | ||
215 | rx_p1ks = data->tkip->rx_uni; | |
216 | ||
217 | ieee80211_get_key_tx_seq(key, &seq); | |
218 | tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); | |
219 | tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); | |
220 | ||
221 | ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); | |
222 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); | |
223 | ||
224 | memcpy(data->tkip->mic_keys.tx, | |
225 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
226 | IWL_MIC_KEY_SIZE); | |
227 | ||
228 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
229 | } else { | |
230 | tkip_sc = | |
231 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
232 | rx_p1ks = data->tkip->rx_multi; | |
233 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
234 | } | |
235 | ||
236 | /* | |
237 | * For non-QoS this relies on the fact that both the uCode and | |
238 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
239 | * for checking the IV in the frames. | |
240 | */ | |
241 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
242 | ieee80211_get_key_rx_seq(key, i, &seq); | |
243 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
244 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
245 | /* wrapping isn't allowed, AP must rekey */ | |
246 | if (seq.tkip.iv32 > cur_rx_iv32) | |
247 | cur_rx_iv32 = seq.tkip.iv32; | |
248 | } | |
249 | ||
250 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
251 | cur_rx_iv32, p1k); | |
252 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); | |
253 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
254 | cur_rx_iv32 + 1, p1k); | |
255 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); | |
256 | ||
257 | memcpy(rx_mic_key, | |
258 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
259 | IWL_MIC_KEY_SIZE); | |
260 | ||
261 | data->use_tkip = true; | |
262 | data->use_rsc_tsc = true; | |
263 | break; | |
264 | case WLAN_CIPHER_SUITE_CCMP: | |
265 | if (sta) { | |
266 | u8 *pn = seq.ccmp.pn; | |
267 | ||
268 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
269 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
270 | ||
271 | ieee80211_get_key_tx_seq(key, &seq); | |
272 | aes_tx_sc->pn = cpu_to_le64((u64)pn[5] | | |
273 | ((u64)pn[4] << 8) | | |
274 | ((u64)pn[3] << 16) | | |
275 | ((u64)pn[2] << 24) | | |
276 | ((u64)pn[1] << 32) | | |
277 | ((u64)pn[0] << 40)); | |
278 | } else { | |
279 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
280 | } | |
281 | ||
282 | /* | |
283 | * For non-QoS this relies on the fact that both the uCode and | |
284 | * mac80211 use TID 0 for checking the IV in the frames. | |
285 | */ | |
286 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
287 | u8 *pn = seq.ccmp.pn; | |
288 | ||
289 | ieee80211_get_key_rx_seq(key, i, &seq); | |
290 | aes_sc->pn = cpu_to_le64((u64)pn[5] | | |
291 | ((u64)pn[4] << 8) | | |
292 | ((u64)pn[3] << 16) | | |
293 | ((u64)pn[2] << 24) | | |
294 | ((u64)pn[1] << 32) | | |
295 | ((u64)pn[0] << 40)); | |
296 | } | |
297 | data->use_rsc_tsc = true; | |
298 | break; | |
299 | } | |
300 | ||
301 | /* | |
302 | * The D3 firmware hardcodes the key offset 0 as the key it uses | |
303 | * to transmit packets to the AP, i.e. the PTK. | |
304 | */ | |
305 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { | |
306 | key->hw_key_idx = 0; | |
307 | } else { | |
308 | data->gtk_key_idx++; | |
309 | key->hw_key_idx = data->gtk_key_idx; | |
310 | } | |
311 | ||
312 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true); | |
313 | data->error = ret != 0; | |
314 | out_unlock: | |
315 | mutex_unlock(&mvm->mutex); | |
316 | } | |
317 | ||
318 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, | |
319 | struct cfg80211_wowlan *wowlan) | |
320 | { | |
321 | struct iwl_wowlan_patterns_cmd *pattern_cmd; | |
322 | struct iwl_host_cmd cmd = { | |
323 | .id = WOWLAN_PATTERNS, | |
324 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
325 | .flags = CMD_SYNC, | |
326 | }; | |
327 | int i, err; | |
328 | ||
329 | if (!wowlan->n_patterns) | |
330 | return 0; | |
331 | ||
332 | cmd.len[0] = sizeof(*pattern_cmd) + | |
333 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern); | |
334 | ||
335 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
336 | if (!pattern_cmd) | |
337 | return -ENOMEM; | |
338 | ||
339 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
340 | ||
341 | for (i = 0; i < wowlan->n_patterns; i++) { | |
342 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
343 | ||
344 | memcpy(&pattern_cmd->patterns[i].mask, | |
345 | wowlan->patterns[i].mask, mask_len); | |
346 | memcpy(&pattern_cmd->patterns[i].pattern, | |
347 | wowlan->patterns[i].pattern, | |
348 | wowlan->patterns[i].pattern_len); | |
349 | pattern_cmd->patterns[i].mask_size = mask_len; | |
350 | pattern_cmd->patterns[i].pattern_size = | |
351 | wowlan->patterns[i].pattern_len; | |
352 | } | |
353 | ||
354 | cmd.data[0] = pattern_cmd; | |
355 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
356 | kfree(pattern_cmd); | |
357 | return err; | |
358 | } | |
359 | ||
360 | static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, | |
361 | struct ieee80211_vif *vif) | |
362 | { | |
363 | struct iwl_proto_offload_cmd cmd = {}; | |
364 | #if IS_ENABLED(CONFIG_IPV6) | |
365 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
366 | int i; | |
367 | ||
368 | if (mvmvif->num_target_ipv6_addrs) { | |
369 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS); | |
370 | memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN); | |
371 | } | |
372 | ||
373 | BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) != | |
374 | sizeof(mvmvif->target_ipv6_addrs[i])); | |
375 | ||
376 | for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++) | |
377 | memcpy(cmd.target_ipv6_addr[i], | |
378 | &mvmvif->target_ipv6_addrs[i], | |
379 | sizeof(cmd.target_ipv6_addr[i])); | |
380 | #endif | |
381 | ||
382 | if (vif->bss_conf.arp_addr_cnt) { | |
383 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP); | |
384 | cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; | |
385 | memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN); | |
386 | } | |
387 | ||
388 | if (!cmd.enabled) | |
389 | return 0; | |
390 | ||
391 | return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC, | |
392 | sizeof(cmd), &cmd); | |
393 | } | |
394 | ||
395 | struct iwl_d3_iter_data { | |
396 | struct iwl_mvm *mvm; | |
397 | struct ieee80211_vif *vif; | |
398 | bool error; | |
399 | }; | |
400 | ||
401 | static void iwl_mvm_d3_iface_iterator(void *_data, u8 *mac, | |
402 | struct ieee80211_vif *vif) | |
403 | { | |
404 | struct iwl_d3_iter_data *data = _data; | |
405 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
406 | ||
407 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) | |
408 | return; | |
409 | ||
410 | if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) | |
411 | return; | |
412 | ||
413 | if (data->vif) { | |
414 | IWL_ERR(data->mvm, "More than one managed interface active!\n"); | |
415 | data->error = true; | |
416 | return; | |
417 | } | |
418 | ||
419 | data->vif = vif; | |
420 | } | |
421 | ||
422 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
423 | struct ieee80211_sta *ap_sta) | |
424 | { | |
425 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
426 | struct ieee80211_chanctx_conf *ctx; | |
427 | u8 chains_static, chains_dynamic; | |
428 | struct cfg80211_chan_def chandef; | |
429 | int ret, i; | |
430 | struct iwl_binding_cmd binding_cmd = {}; | |
431 | struct iwl_time_quota_cmd quota_cmd = {}; | |
432 | u32 status; | |
433 | ||
434 | /* add back the PHY */ | |
435 | if (WARN_ON(!mvmvif->phy_ctxt)) | |
436 | return -EINVAL; | |
437 | ||
438 | rcu_read_lock(); | |
439 | ctx = rcu_dereference(vif->chanctx_conf); | |
440 | if (WARN_ON(!ctx)) { | |
441 | rcu_read_unlock(); | |
442 | return -EINVAL; | |
443 | } | |
444 | chandef = ctx->def; | |
445 | chains_static = ctx->rx_chains_static; | |
446 | chains_dynamic = ctx->rx_chains_dynamic; | |
447 | rcu_read_unlock(); | |
448 | ||
449 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, | |
450 | chains_static, chains_dynamic); | |
451 | if (ret) | |
452 | return ret; | |
453 | ||
454 | /* add back the MAC */ | |
455 | mvmvif->uploaded = false; | |
456 | ||
457 | if (WARN_ON(!vif->bss_conf.assoc)) | |
458 | return -EINVAL; | |
459 | /* hack */ | |
460 | vif->bss_conf.assoc = false; | |
461 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
462 | vif->bss_conf.assoc = true; | |
463 | if (ret) | |
464 | return ret; | |
465 | ||
466 | /* add back binding - XXX refactor? */ | |
467 | binding_cmd.id_and_color = | |
468 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
469 | mvmvif->phy_ctxt->color)); | |
470 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
471 | binding_cmd.phy = | |
472 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
473 | mvmvif->phy_ctxt->color)); | |
474 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
475 | mvmvif->color)); | |
476 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) | |
477 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); | |
478 | ||
479 | status = 0; | |
480 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, | |
481 | sizeof(binding_cmd), &binding_cmd, | |
482 | &status); | |
483 | if (ret) { | |
484 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); | |
485 | return ret; | |
486 | } | |
487 | ||
488 | if (status) { | |
489 | IWL_ERR(mvm, "Binding command failed: %u\n", status); | |
490 | return -EIO; | |
491 | } | |
492 | ||
493 | ret = iwl_mvm_sta_add_to_fw(mvm, ap_sta); | |
494 | if (ret) | |
495 | return ret; | |
496 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); | |
497 | ||
498 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
499 | if (ret) | |
500 | return ret; | |
501 | ||
502 | /* and some quota */ | |
503 | quota_cmd.quotas[0].id_and_color = | |
504 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
505 | mvmvif->phy_ctxt->color)); | |
506 | quota_cmd.quotas[0].quota = cpu_to_le32(100); | |
507 | quota_cmd.quotas[0].max_duration = cpu_to_le32(1000); | |
508 | ||
509 | for (i = 1; i < MAX_BINDINGS; i++) | |
510 | quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); | |
511 | ||
512 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, | |
513 | sizeof(quota_cmd), "a_cmd); | |
514 | if (ret) | |
515 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); | |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
520 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) | |
521 | { | |
522 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
523 | struct iwl_d3_iter_data suspend_iter_data = { | |
524 | .mvm = mvm, | |
525 | }; | |
526 | struct ieee80211_vif *vif; | |
527 | struct iwl_mvm_vif *mvmvif; | |
528 | struct ieee80211_sta *ap_sta; | |
529 | struct iwl_mvm_sta *mvm_ap_sta; | |
530 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; | |
531 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; | |
532 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; | |
533 | struct iwl_d3_manager_config d3_cfg_cmd = {}; | |
534 | struct wowlan_key_data key_data = { | |
535 | .use_rsc_tsc = false, | |
536 | .tkip = &tkip_cmd, | |
537 | .use_tkip = false, | |
538 | }; | |
539 | int ret, i; | |
540 | u16 seq; | |
541 | u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT; | |
542 | ||
543 | if (WARN_ON(!wowlan)) | |
544 | return -EINVAL; | |
545 | ||
546 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
547 | if (!key_data.rsc_tsc) | |
548 | return -ENOMEM; | |
549 | ||
550 | mutex_lock(&mvm->mutex); | |
551 | ||
552 | old_aux_sta_id = mvm->aux_sta.sta_id; | |
553 | ||
554 | /* see if there's only a single BSS vif and it's associated */ | |
555 | ieee80211_iterate_active_interfaces_atomic( | |
556 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
557 | iwl_mvm_d3_iface_iterator, &suspend_iter_data); | |
558 | ||
559 | if (suspend_iter_data.error || !suspend_iter_data.vif) { | |
560 | ret = 1; | |
561 | goto out_noreset; | |
562 | } | |
563 | ||
564 | vif = suspend_iter_data.vif; | |
565 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
566 | ||
567 | ap_sta = rcu_dereference_protected( | |
568 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
569 | lockdep_is_held(&mvm->mutex)); | |
570 | if (IS_ERR_OR_NULL(ap_sta)) { | |
571 | ret = -EINVAL; | |
572 | goto out_noreset; | |
573 | } | |
574 | ||
575 | mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv; | |
576 | ||
577 | /* | |
578 | * The D3 firmware still hardcodes the AP station ID for the | |
579 | * BSS we're associated with as 0. Store the real STA ID here | |
580 | * and assign 0. When we leave this function, we'll restore | |
581 | * the original value for the resume code. | |
582 | */ | |
583 | old_ap_sta_id = mvm_ap_sta->sta_id; | |
584 | mvm_ap_sta->sta_id = 0; | |
585 | mvmvif->ap_sta_id = 0; | |
586 | ||
587 | /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */ | |
588 | ||
589 | wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported; | |
590 | ||
591 | /* | |
592 | * We know the last used seqno, and the uCode expects to know that | |
593 | * one, it will increment before TX. | |
594 | */ | |
595 | seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ; | |
596 | wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq); | |
597 | ||
598 | /* | |
599 | * For QoS counters, we store the one to use next, so subtract 0x10 | |
600 | * since the uCode will add 0x10 *before* using the value while we | |
601 | * increment after using the value (i.e. store the next value to use). | |
602 | */ | |
603 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
604 | seq = mvm_ap_sta->tid_data[i].seq_number; | |
605 | seq -= 0x10; | |
606 | wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq); | |
607 | } | |
608 | ||
609 | if (wowlan->disconnect) | |
610 | wowlan_config_cmd.wakeup_filter |= | |
611 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | | |
612 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
613 | if (wowlan->magic_pkt) | |
614 | wowlan_config_cmd.wakeup_filter |= | |
615 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); | |
616 | if (wowlan->gtk_rekey_failure) | |
617 | wowlan_config_cmd.wakeup_filter |= | |
618 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); | |
619 | if (wowlan->eap_identity_req) | |
620 | wowlan_config_cmd.wakeup_filter |= | |
621 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); | |
622 | if (wowlan->four_way_handshake) | |
623 | wowlan_config_cmd.wakeup_filter |= | |
624 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); | |
625 | if (wowlan->n_patterns) | |
626 | wowlan_config_cmd.wakeup_filter |= | |
627 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); | |
628 | ||
629 | if (wowlan->rfkill_release) | |
630 | d3_cfg_cmd.wakeup_flags |= | |
631 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); | |
632 | ||
633 | iwl_mvm_cancel_scan(mvm); | |
634 | ||
635 | iwl_trans_stop_device(mvm->trans); | |
636 | ||
637 | /* | |
638 | * Set the HW restart bit -- this is mostly true as we're | |
639 | * going to load new firmware and reprogram that, though | |
640 | * the reprogramming is going to be manual to avoid adding | |
641 | * all the MACs that aren't support. | |
642 | * We don't have to clear up everything though because the | |
643 | * reprogramming is manual. When we resume, we'll actually | |
644 | * go through a proper restart sequence again to switch | |
645 | * back to the runtime firmware image. | |
646 | */ | |
647 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
648 | ||
649 | /* We reprogram keys and shouldn't allocate new key indices */ | |
650 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); | |
651 | ||
652 | /* | |
653 | * The D3 firmware still hardcodes the AP station ID for the | |
654 | * BSS we're associated with as 0. As a result, we have to move | |
655 | * the auxiliary station to ID 1 so the ID 0 remains free for | |
656 | * the AP station for later. | |
657 | * We set the sta_id to 1 here, and reset it to its previous | |
658 | * value (that we stored above) later. | |
659 | */ | |
660 | mvm->aux_sta.sta_id = 1; | |
661 | ||
662 | ret = iwl_mvm_load_d3_fw(mvm); | |
663 | if (ret) | |
664 | goto out; | |
665 | ||
666 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); | |
667 | if (ret) | |
668 | goto out; | |
669 | ||
670 | if (!iwlwifi_mod_params.sw_crypto) { | |
671 | /* | |
672 | * This needs to be unlocked due to lock ordering | |
673 | * constraints. Since we're in the suspend path | |
674 | * that isn't really a problem though. | |
675 | */ | |
676 | mutex_unlock(&mvm->mutex); | |
677 | ieee80211_iter_keys(mvm->hw, vif, | |
678 | iwl_mvm_wowlan_program_keys, | |
679 | &key_data); | |
680 | mutex_lock(&mvm->mutex); | |
681 | if (key_data.error) { | |
682 | ret = -EIO; | |
683 | goto out; | |
684 | } | |
685 | ||
686 | if (key_data.use_rsc_tsc) { | |
687 | struct iwl_host_cmd rsc_tsc_cmd = { | |
688 | .id = WOWLAN_TSC_RSC_PARAM, | |
689 | .flags = CMD_SYNC, | |
690 | .data[0] = key_data.rsc_tsc, | |
691 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
692 | .len[0] = sizeof(*key_data.rsc_tsc), | |
693 | }; | |
694 | ||
695 | ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd); | |
696 | if (ret) | |
697 | goto out; | |
698 | } | |
699 | ||
700 | if (key_data.use_tkip) { | |
701 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
702 | WOWLAN_TKIP_PARAM, | |
703 | CMD_SYNC, sizeof(tkip_cmd), | |
704 | &tkip_cmd); | |
705 | if (ret) | |
706 | goto out; | |
707 | } | |
708 | ||
709 | if (mvmvif->rekey_data.valid) { | |
710 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); | |
711 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, | |
712 | NL80211_KCK_LEN); | |
713 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
714 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, | |
715 | NL80211_KEK_LEN); | |
716 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
717 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; | |
718 | ||
719 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
720 | WOWLAN_KEK_KCK_MATERIAL, | |
721 | CMD_SYNC, | |
722 | sizeof(kek_kck_cmd), | |
723 | &kek_kck_cmd); | |
724 | if (ret) | |
725 | goto out; | |
726 | } | |
727 | } | |
728 | ||
729 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, | |
730 | CMD_SYNC, sizeof(wowlan_config_cmd), | |
731 | &wowlan_config_cmd); | |
732 | if (ret) | |
733 | goto out; | |
734 | ||
735 | ret = iwl_mvm_send_patterns(mvm, wowlan); | |
736 | if (ret) | |
737 | goto out; | |
738 | ||
739 | ret = iwl_mvm_send_proto_offload(mvm, vif); | |
740 | if (ret) | |
741 | goto out; | |
742 | ||
743 | /* must be last -- this switches firmware state */ | |
744 | ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC, | |
745 | sizeof(d3_cfg_cmd), &d3_cfg_cmd); | |
746 | if (ret) | |
747 | goto out; | |
748 | ||
749 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
750 | ||
751 | iwl_trans_d3_suspend(mvm->trans); | |
752 | out: | |
753 | mvm->aux_sta.sta_id = old_aux_sta_id; | |
754 | mvm_ap_sta->sta_id = old_ap_sta_id; | |
755 | mvmvif->ap_sta_id = old_ap_sta_id; | |
756 | out_noreset: | |
757 | kfree(key_data.rsc_tsc); | |
758 | if (ret < 0) | |
759 | ieee80211_restart_hw(mvm->hw); | |
760 | ||
761 | mutex_unlock(&mvm->mutex); | |
762 | ||
763 | return ret; | |
764 | } | |
765 | ||
766 | int iwl_mvm_resume(struct ieee80211_hw *hw) | |
767 | { | |
768 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
769 | struct iwl_d3_iter_data resume_iter_data = { | |
770 | .mvm = mvm, | |
771 | }; | |
772 | struct ieee80211_vif *vif = NULL; | |
773 | u32 base; | |
774 | int ret; | |
775 | enum iwl_d3_status d3_status; | |
776 | struct error_table_start { | |
777 | /* cf. struct iwl_error_event_table */ | |
778 | u32 valid; | |
779 | u32 error_id; | |
780 | } err_info; | |
781 | ||
782 | mutex_lock(&mvm->mutex); | |
783 | ||
784 | /* get the BSS vif pointer again */ | |
785 | ieee80211_iterate_active_interfaces_atomic( | |
786 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
787 | iwl_mvm_d3_iface_iterator, &resume_iter_data); | |
788 | ||
789 | if (WARN_ON(resume_iter_data.error || !resume_iter_data.vif)) | |
790 | goto out_unlock; | |
791 | ||
792 | vif = resume_iter_data.vif; | |
793 | ||
794 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status); | |
795 | if (ret) | |
796 | goto out_unlock; | |
797 | ||
798 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
799 | IWL_INFO(mvm, "Device was reset during suspend\n"); | |
800 | goto out_unlock; | |
801 | } | |
802 | ||
803 | base = mvm->error_event_table; | |
804 | ||
805 | iwl_trans_read_mem_bytes(mvm->trans, base, | |
806 | &err_info, sizeof(err_info)); | |
807 | ||
808 | if (err_info.valid) { | |
809 | IWL_INFO(mvm, "error table is valid (%d)\n", | |
810 | err_info.valid); | |
811 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) | |
812 | IWL_ERR(mvm, "this was due to RF-kill\n"); | |
813 | goto out_unlock; | |
814 | } | |
815 | ||
816 | /* TODO: get status and whatever else ... */ | |
817 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_GET_STATUSES, CMD_SYNC, 0, NULL); | |
818 | if (ret) | |
819 | IWL_ERR(mvm, "failed to query status (%d)\n", ret); | |
820 | ||
821 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL); | |
822 | if (ret) | |
823 | IWL_ERR(mvm, "failed to query offloads (%d)\n", ret); | |
824 | ||
825 | out_unlock: | |
826 | mutex_unlock(&mvm->mutex); | |
827 | ||
828 | if (vif) | |
829 | ieee80211_resume_disconnect(vif); | |
830 | ||
831 | /* return 1 to reconfigure the device */ | |
832 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
833 | return 1; | |
834 | } | |
835 | ||
836 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) | |
837 | { | |
838 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
839 | ||
840 | device_set_wakeup_enable(mvm->trans->dev, enabled); | |
841 | } |