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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 |
8ca151b5 JB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of version 2 of the GNU General Public License as | |
13 | * published by the Free Software Foundation. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
23 | * USA | |
24 | * | |
25 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 26 | * in the file called COPYING. |
8ca151b5 JB |
27 | * |
28 | * Contact Information: | |
29 | * Intel Linux Wireless <ilw@linux.intel.com> | |
30 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
31 | * | |
32 | * BSD LICENSE | |
33 | * | |
51368bf7 | 34 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
65ff556b | 35 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
8ca151b5 JB |
36 | * All rights reserved. |
37 | * | |
38 | * Redistribution and use in source and binary forms, with or without | |
39 | * modification, are permitted provided that the following conditions | |
40 | * are met: | |
41 | * | |
42 | * * Redistributions of source code must retain the above copyright | |
43 | * notice, this list of conditions and the following disclaimer. | |
44 | * * Redistributions in binary form must reproduce the above copyright | |
45 | * notice, this list of conditions and the following disclaimer in | |
46 | * the documentation and/or other materials provided with the | |
47 | * distribution. | |
48 | * * Neither the name Intel Corporation nor the names of its | |
49 | * contributors may be used to endorse or promote products derived | |
50 | * from this software without specific prior written permission. | |
51 | * | |
52 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
53 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
54 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
55 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
56 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
57 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
58 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
59 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
60 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
61 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
62 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
63 | * | |
64 | *****************************************************************************/ | |
65 | ||
f444eb10 | 66 | #include <linux/etherdevice.h> |
f0c2646a | 67 | #include <linux/ip.h> |
debff618 | 68 | #include <linux/fs.h> |
8ca151b5 JB |
69 | #include <net/cfg80211.h> |
70 | #include <net/ipv6.h> | |
f0c2646a | 71 | #include <net/tcp.h> |
f7fc5989 | 72 | #include <net/addrconf.h> |
8ca151b5 JB |
73 | #include "iwl-modparams.h" |
74 | #include "fw-api.h" | |
75 | #include "mvm.h" | |
76 | ||
77 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, | |
78 | struct ieee80211_vif *vif, | |
79 | struct cfg80211_gtk_rekey_data *data) | |
80 | { | |
81 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
82 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
83 | ||
84 | if (iwlwifi_mod_params.sw_crypto) | |
85 | return; | |
86 | ||
87 | mutex_lock(&mvm->mutex); | |
88 | ||
89 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); | |
90 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); | |
91 | mvmvif->rekey_data.replay_ctr = | |
92 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
93 | mvmvif->rekey_data.valid = true; | |
94 | ||
95 | mutex_unlock(&mvm->mutex); | |
96 | } | |
97 | ||
98 | #if IS_ENABLED(CONFIG_IPV6) | |
99 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, | |
100 | struct ieee80211_vif *vif, | |
101 | struct inet6_dev *idev) | |
102 | { | |
103 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
104 | struct inet6_ifaddr *ifa; | |
105 | int idx = 0; | |
106 | ||
a3777e0f | 107 | read_lock_bh(&idev->lock); |
8ca151b5 JB |
108 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
109 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; | |
110 | idx++; | |
5369d6c1 | 111 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) |
8ca151b5 JB |
112 | break; |
113 | } | |
a3777e0f | 114 | read_unlock_bh(&idev->lock); |
8ca151b5 JB |
115 | |
116 | mvmvif->num_target_ipv6_addrs = idx; | |
117 | } | |
118 | #endif | |
119 | ||
120 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, | |
121 | struct ieee80211_vif *vif, int idx) | |
122 | { | |
123 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
124 | ||
125 | mvmvif->tx_key_idx = idx; | |
126 | } | |
127 | ||
128 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) | |
129 | { | |
130 | int i; | |
131 | ||
132 | for (i = 0; i < IWL_P1K_SIZE; i++) | |
133 | out[i] = cpu_to_le16(p1k[i]); | |
134 | } | |
135 | ||
136 | struct wowlan_key_data { | |
137 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
138 | struct iwl_wowlan_tkip_params_cmd *tkip; | |
139 | bool error, use_rsc_tsc, use_tkip; | |
5312e54d | 140 | int wep_key_idx; |
8ca151b5 JB |
141 | }; |
142 | ||
143 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, | |
144 | struct ieee80211_vif *vif, | |
145 | struct ieee80211_sta *sta, | |
146 | struct ieee80211_key_conf *key, | |
147 | void *_data) | |
148 | { | |
149 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
150 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
151 | struct wowlan_key_data *data = _data; | |
152 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
153 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
154 | struct iwl_p1k_cache *rx_p1ks; | |
155 | u8 *rx_mic_key; | |
156 | struct ieee80211_key_seq seq; | |
157 | u32 cur_rx_iv32 = 0; | |
158 | u16 p1k[IWL_P1K_SIZE]; | |
159 | int ret, i; | |
160 | ||
161 | mutex_lock(&mvm->mutex); | |
162 | ||
163 | switch (key->cipher) { | |
164 | case WLAN_CIPHER_SUITE_WEP40: | |
165 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ | |
166 | struct { | |
167 | struct iwl_mvm_wep_key_cmd wep_key_cmd; | |
168 | struct iwl_mvm_wep_key wep_key; | |
169 | } __packed wkc = { | |
170 | .wep_key_cmd.mac_id_n_color = | |
171 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
172 | mvmvif->color)), | |
173 | .wep_key_cmd.num_keys = 1, | |
174 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ | |
175 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, | |
176 | .wep_key.key_index = key->keyidx, | |
177 | .wep_key.key_size = key->keylen, | |
178 | }; | |
179 | ||
180 | /* | |
181 | * This will fail -- the key functions don't set support | |
182 | * pairwise WEP keys. However, that's better than silently | |
183 | * failing WoWLAN. Or maybe not? | |
184 | */ | |
185 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
186 | break; | |
187 | ||
188 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); | |
189 | if (key->keyidx == mvmvif->tx_key_idx) { | |
190 | /* TX key must be at offset 0 */ | |
191 | wkc.wep_key.key_offset = 0; | |
192 | } else { | |
193 | /* others start at 1 */ | |
5312e54d JB |
194 | data->wep_key_idx++; |
195 | wkc.wep_key.key_offset = data->wep_key_idx; | |
8ca151b5 JB |
196 | } |
197 | ||
a1022927 | 198 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc); |
8ca151b5 JB |
199 | data->error = ret != 0; |
200 | ||
f444eb10 JB |
201 | mvm->ptk_ivlen = key->iv_len; |
202 | mvm->ptk_icvlen = key->icv_len; | |
203 | mvm->gtk_ivlen = key->iv_len; | |
204 | mvm->gtk_icvlen = key->icv_len; | |
205 | ||
8ca151b5 JB |
206 | /* don't upload key again */ |
207 | goto out_unlock; | |
208 | } | |
209 | default: | |
210 | data->error = true; | |
211 | goto out_unlock; | |
212 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
213 | /* | |
214 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them | |
215 | * but we also shouldn't abort suspend due to that. It does have | |
216 | * support for the IGTK key renewal, but doesn't really use the | |
217 | * IGTK for anything. This means we could spuriously wake up or | |
218 | * be deauthenticated, but that was considered acceptable. | |
219 | */ | |
220 | goto out_unlock; | |
221 | case WLAN_CIPHER_SUITE_TKIP: | |
222 | if (sta) { | |
223 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; | |
224 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
225 | ||
226 | rx_p1ks = data->tkip->rx_uni; | |
227 | ||
228 | ieee80211_get_key_tx_seq(key, &seq); | |
229 | tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); | |
230 | tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); | |
231 | ||
232 | ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); | |
233 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); | |
234 | ||
235 | memcpy(data->tkip->mic_keys.tx, | |
236 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
237 | IWL_MIC_KEY_SIZE); | |
238 | ||
239 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
240 | } else { | |
241 | tkip_sc = | |
242 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
243 | rx_p1ks = data->tkip->rx_multi; | |
244 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
245 | } | |
246 | ||
247 | /* | |
248 | * For non-QoS this relies on the fact that both the uCode and | |
249 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
250 | * for checking the IV in the frames. | |
251 | */ | |
252 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
253 | ieee80211_get_key_rx_seq(key, i, &seq); | |
254 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
255 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
256 | /* wrapping isn't allowed, AP must rekey */ | |
257 | if (seq.tkip.iv32 > cur_rx_iv32) | |
258 | cur_rx_iv32 = seq.tkip.iv32; | |
259 | } | |
260 | ||
261 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
262 | cur_rx_iv32, p1k); | |
263 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); | |
264 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
265 | cur_rx_iv32 + 1, p1k); | |
266 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); | |
267 | ||
268 | memcpy(rx_mic_key, | |
269 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
270 | IWL_MIC_KEY_SIZE); | |
271 | ||
272 | data->use_tkip = true; | |
273 | data->use_rsc_tsc = true; | |
274 | break; | |
275 | case WLAN_CIPHER_SUITE_CCMP: | |
276 | if (sta) { | |
6645d5e4 | 277 | u64 pn64; |
8ca151b5 JB |
278 | |
279 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
280 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
281 | ||
6645d5e4 JB |
282 | pn64 = atomic64_read(&key->tx_pn); |
283 | aes_tx_sc->pn = cpu_to_le64(pn64); | |
8ca151b5 JB |
284 | } else { |
285 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
286 | } | |
287 | ||
288 | /* | |
289 | * For non-QoS this relies on the fact that both the uCode and | |
290 | * mac80211 use TID 0 for checking the IV in the frames. | |
291 | */ | |
292 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
293 | u8 *pn = seq.ccmp.pn; | |
294 | ||
295 | ieee80211_get_key_rx_seq(key, i, &seq); | |
2cf5eb3a JB |
296 | aes_sc[i].pn = cpu_to_le64((u64)pn[5] | |
297 | ((u64)pn[4] << 8) | | |
298 | ((u64)pn[3] << 16) | | |
299 | ((u64)pn[2] << 24) | | |
300 | ((u64)pn[1] << 32) | | |
301 | ((u64)pn[0] << 40)); | |
8ca151b5 JB |
302 | } |
303 | data->use_rsc_tsc = true; | |
304 | break; | |
305 | } | |
306 | ||
307 | /* | |
308 | * The D3 firmware hardcodes the key offset 0 as the key it uses | |
309 | * to transmit packets to the AP, i.e. the PTK. | |
310 | */ | |
311 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { | |
f444eb10 JB |
312 | mvm->ptk_ivlen = key->iv_len; |
313 | mvm->ptk_icvlen = key->icv_len; | |
d6ee54a9 | 314 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); |
8ca151b5 | 315 | } else { |
5312e54d JB |
316 | /* |
317 | * firmware only supports TSC/RSC for a single key, | |
318 | * so if there are multiple keep overwriting them | |
319 | * with new ones -- this relies on mac80211 doing | |
320 | * list_add_tail(). | |
321 | */ | |
f444eb10 JB |
322 | mvm->gtk_ivlen = key->iv_len; |
323 | mvm->gtk_icvlen = key->icv_len; | |
d6ee54a9 | 324 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); |
8ca151b5 JB |
325 | } |
326 | ||
8ca151b5 JB |
327 | data->error = ret != 0; |
328 | out_unlock: | |
329 | mutex_unlock(&mvm->mutex); | |
330 | } | |
331 | ||
332 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, | |
333 | struct cfg80211_wowlan *wowlan) | |
334 | { | |
335 | struct iwl_wowlan_patterns_cmd *pattern_cmd; | |
336 | struct iwl_host_cmd cmd = { | |
337 | .id = WOWLAN_PATTERNS, | |
338 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
8ca151b5 JB |
339 | }; |
340 | int i, err; | |
341 | ||
342 | if (!wowlan->n_patterns) | |
343 | return 0; | |
344 | ||
345 | cmd.len[0] = sizeof(*pattern_cmd) + | |
346 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern); | |
347 | ||
348 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
349 | if (!pattern_cmd) | |
350 | return -ENOMEM; | |
351 | ||
352 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
353 | ||
354 | for (i = 0; i < wowlan->n_patterns; i++) { | |
355 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
356 | ||
357 | memcpy(&pattern_cmd->patterns[i].mask, | |
358 | wowlan->patterns[i].mask, mask_len); | |
359 | memcpy(&pattern_cmd->patterns[i].pattern, | |
360 | wowlan->patterns[i].pattern, | |
361 | wowlan->patterns[i].pattern_len); | |
362 | pattern_cmd->patterns[i].mask_size = mask_len; | |
363 | pattern_cmd->patterns[i].pattern_size = | |
364 | wowlan->patterns[i].pattern_len; | |
365 | } | |
366 | ||
367 | cmd.data[0] = pattern_cmd; | |
368 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
369 | kfree(pattern_cmd); | |
370 | return err; | |
371 | } | |
372 | ||
f0c2646a JB |
373 | enum iwl_mvm_tcp_packet_type { |
374 | MVM_TCP_TX_SYN, | |
375 | MVM_TCP_RX_SYNACK, | |
376 | MVM_TCP_TX_DATA, | |
377 | MVM_TCP_RX_ACK, | |
378 | MVM_TCP_RX_WAKE, | |
379 | MVM_TCP_TX_FIN, | |
380 | }; | |
381 | ||
382 | static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr) | |
383 | { | |
384 | __sum16 check = tcp_v4_check(len, saddr, daddr, 0); | |
385 | return cpu_to_le16(be16_to_cpu((__force __be16)check)); | |
386 | } | |
387 | ||
b002c7e1 | 388 | static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif, |
f0c2646a JB |
389 | struct cfg80211_wowlan_tcp *tcp, |
390 | void *_pkt, u8 *mask, | |
391 | __le16 *pseudo_hdr_csum, | |
392 | enum iwl_mvm_tcp_packet_type ptype) | |
393 | { | |
394 | struct { | |
395 | struct ethhdr eth; | |
396 | struct iphdr ip; | |
397 | struct tcphdr tcp; | |
398 | u8 data[]; | |
399 | } __packed *pkt = _pkt; | |
400 | u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); | |
401 | int i; | |
402 | ||
403 | pkt->eth.h_proto = cpu_to_be16(ETH_P_IP), | |
404 | pkt->ip.version = 4; | |
405 | pkt->ip.ihl = 5; | |
406 | pkt->ip.protocol = IPPROTO_TCP; | |
407 | ||
408 | switch (ptype) { | |
409 | case MVM_TCP_TX_SYN: | |
410 | case MVM_TCP_TX_DATA: | |
411 | case MVM_TCP_TX_FIN: | |
412 | memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN); | |
413 | memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN); | |
414 | pkt->ip.ttl = 128; | |
415 | pkt->ip.saddr = tcp->src; | |
416 | pkt->ip.daddr = tcp->dst; | |
417 | pkt->tcp.source = cpu_to_be16(tcp->src_port); | |
418 | pkt->tcp.dest = cpu_to_be16(tcp->dst_port); | |
419 | /* overwritten for TX SYN later */ | |
420 | pkt->tcp.doff = sizeof(struct tcphdr) / 4; | |
421 | pkt->tcp.window = cpu_to_be16(65000); | |
422 | break; | |
423 | case MVM_TCP_RX_SYNACK: | |
424 | case MVM_TCP_RX_ACK: | |
425 | case MVM_TCP_RX_WAKE: | |
426 | memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN); | |
427 | memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN); | |
428 | pkt->ip.saddr = tcp->dst; | |
429 | pkt->ip.daddr = tcp->src; | |
430 | pkt->tcp.source = cpu_to_be16(tcp->dst_port); | |
431 | pkt->tcp.dest = cpu_to_be16(tcp->src_port); | |
432 | break; | |
433 | default: | |
434 | WARN_ON(1); | |
435 | return; | |
436 | } | |
437 | ||
438 | switch (ptype) { | |
439 | case MVM_TCP_TX_SYN: | |
440 | /* firmware assumes 8 option bytes - 8 NOPs for now */ | |
441 | memset(pkt->data, 0x01, 8); | |
442 | ip_tot_len += 8; | |
443 | pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4; | |
444 | pkt->tcp.syn = 1; | |
445 | break; | |
446 | case MVM_TCP_TX_DATA: | |
447 | ip_tot_len += tcp->payload_len; | |
448 | memcpy(pkt->data, tcp->payload, tcp->payload_len); | |
449 | pkt->tcp.psh = 1; | |
450 | pkt->tcp.ack = 1; | |
451 | break; | |
452 | case MVM_TCP_TX_FIN: | |
453 | pkt->tcp.fin = 1; | |
454 | pkt->tcp.ack = 1; | |
455 | break; | |
456 | case MVM_TCP_RX_SYNACK: | |
457 | pkt->tcp.syn = 1; | |
458 | pkt->tcp.ack = 1; | |
459 | break; | |
460 | case MVM_TCP_RX_ACK: | |
461 | pkt->tcp.ack = 1; | |
462 | break; | |
463 | case MVM_TCP_RX_WAKE: | |
464 | ip_tot_len += tcp->wake_len; | |
465 | pkt->tcp.psh = 1; | |
466 | pkt->tcp.ack = 1; | |
467 | memcpy(pkt->data, tcp->wake_data, tcp->wake_len); | |
468 | break; | |
469 | } | |
470 | ||
471 | switch (ptype) { | |
472 | case MVM_TCP_TX_SYN: | |
473 | case MVM_TCP_TX_DATA: | |
474 | case MVM_TCP_TX_FIN: | |
475 | pkt->ip.tot_len = cpu_to_be16(ip_tot_len); | |
476 | pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl); | |
477 | break; | |
478 | case MVM_TCP_RX_WAKE: | |
479 | for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) { | |
480 | u8 tmp = tcp->wake_mask[i]; | |
481 | mask[i + 6] |= tmp << 6; | |
482 | if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8)) | |
483 | mask[i + 7] = tmp >> 2; | |
484 | } | |
485 | /* fall through for ethernet/IP/TCP headers mask */ | |
486 | case MVM_TCP_RX_SYNACK: | |
487 | case MVM_TCP_RX_ACK: | |
488 | mask[0] = 0xff; /* match ethernet */ | |
489 | /* | |
490 | * match ethernet, ip.version, ip.ihl | |
491 | * the ip.ihl half byte is really masked out by firmware | |
492 | */ | |
493 | mask[1] = 0x7f; | |
494 | mask[2] = 0x80; /* match ip.protocol */ | |
495 | mask[3] = 0xfc; /* match ip.saddr, ip.daddr */ | |
496 | mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */ | |
497 | mask[5] = 0x80; /* match tcp flags */ | |
498 | /* leave rest (0 or set for MVM_TCP_RX_WAKE) */ | |
499 | break; | |
500 | }; | |
501 | ||
502 | *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr), | |
503 | pkt->ip.saddr, pkt->ip.daddr); | |
504 | } | |
505 | ||
506 | static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, | |
507 | struct ieee80211_vif *vif, | |
508 | struct cfg80211_wowlan_tcp *tcp) | |
509 | { | |
510 | struct iwl_wowlan_remote_wake_config *cfg; | |
511 | struct iwl_host_cmd cmd = { | |
512 | .id = REMOTE_WAKE_CONFIG_CMD, | |
513 | .len = { sizeof(*cfg), }, | |
514 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, | |
f0c2646a JB |
515 | }; |
516 | int ret; | |
517 | ||
518 | if (!tcp) | |
519 | return 0; | |
520 | ||
521 | cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); | |
522 | if (!cfg) | |
523 | return -ENOMEM; | |
524 | cmd.data[0] = cfg; | |
525 | ||
526 | cfg->max_syn_retries = 10; | |
527 | cfg->max_data_retries = 10; | |
528 | cfg->tcp_syn_ack_timeout = 1; /* seconds */ | |
529 | cfg->tcp_ack_timeout = 1; /* seconds */ | |
530 | ||
531 | /* SYN (TX) */ | |
532 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 533 | vif, tcp, cfg->syn_tx.data, NULL, |
f0c2646a JB |
534 | &cfg->syn_tx.info.tcp_pseudo_header_checksum, |
535 | MVM_TCP_TX_SYN); | |
536 | cfg->syn_tx.info.tcp_payload_length = 0; | |
537 | ||
538 | /* SYN/ACK (RX) */ | |
539 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 540 | vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask, |
f0c2646a JB |
541 | &cfg->synack_rx.info.tcp_pseudo_header_checksum, |
542 | MVM_TCP_RX_SYNACK); | |
543 | cfg->synack_rx.info.tcp_payload_length = 0; | |
544 | ||
545 | /* KEEPALIVE/ACK (TX) */ | |
546 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 547 | vif, tcp, cfg->keepalive_tx.data, NULL, |
f0c2646a JB |
548 | &cfg->keepalive_tx.info.tcp_pseudo_header_checksum, |
549 | MVM_TCP_TX_DATA); | |
550 | cfg->keepalive_tx.info.tcp_payload_length = | |
551 | cpu_to_le16(tcp->payload_len); | |
552 | cfg->sequence_number_offset = tcp->payload_seq.offset; | |
553 | /* length must be 0..4, the field is little endian */ | |
554 | cfg->sequence_number_length = tcp->payload_seq.len; | |
555 | cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start); | |
556 | cfg->keepalive_interval = cpu_to_le16(tcp->data_interval); | |
557 | if (tcp->payload_tok.len) { | |
558 | cfg->token_offset = tcp->payload_tok.offset; | |
559 | cfg->token_length = tcp->payload_tok.len; | |
560 | cfg->num_tokens = | |
561 | cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len); | |
562 | memcpy(cfg->tokens, tcp->payload_tok.token_stream, | |
563 | tcp->tokens_size); | |
564 | } else { | |
565 | /* set tokens to max value to almost never run out */ | |
566 | cfg->num_tokens = cpu_to_le16(65535); | |
567 | } | |
568 | ||
569 | /* ACK (RX) */ | |
570 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 571 | vif, tcp, cfg->keepalive_ack_rx.data, |
f0c2646a JB |
572 | cfg->keepalive_ack_rx.rx_mask, |
573 | &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum, | |
574 | MVM_TCP_RX_ACK); | |
575 | cfg->keepalive_ack_rx.info.tcp_payload_length = 0; | |
576 | ||
577 | /* WAKEUP (RX) */ | |
578 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 579 | vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask, |
f0c2646a JB |
580 | &cfg->wake_rx.info.tcp_pseudo_header_checksum, |
581 | MVM_TCP_RX_WAKE); | |
582 | cfg->wake_rx.info.tcp_payload_length = | |
583 | cpu_to_le16(tcp->wake_len); | |
584 | ||
585 | /* FIN */ | |
586 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 587 | vif, tcp, cfg->fin_tx.data, NULL, |
f0c2646a JB |
588 | &cfg->fin_tx.info.tcp_pseudo_header_checksum, |
589 | MVM_TCP_TX_FIN); | |
590 | cfg->fin_tx.info.tcp_payload_length = 0; | |
591 | ||
592 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
593 | kfree(cfg); | |
594 | ||
595 | return ret; | |
596 | } | |
597 | ||
8ca151b5 JB |
598 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
599 | struct ieee80211_sta *ap_sta) | |
600 | { | |
601 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
602 | struct ieee80211_chanctx_conf *ctx; | |
603 | u8 chains_static, chains_dynamic; | |
604 | struct cfg80211_chan_def chandef; | |
605 | int ret, i; | |
606 | struct iwl_binding_cmd binding_cmd = {}; | |
607 | struct iwl_time_quota_cmd quota_cmd = {}; | |
608 | u32 status; | |
609 | ||
610 | /* add back the PHY */ | |
611 | if (WARN_ON(!mvmvif->phy_ctxt)) | |
612 | return -EINVAL; | |
613 | ||
614 | rcu_read_lock(); | |
615 | ctx = rcu_dereference(vif->chanctx_conf); | |
616 | if (WARN_ON(!ctx)) { | |
617 | rcu_read_unlock(); | |
618 | return -EINVAL; | |
619 | } | |
620 | chandef = ctx->def; | |
621 | chains_static = ctx->rx_chains_static; | |
622 | chains_dynamic = ctx->rx_chains_dynamic; | |
623 | rcu_read_unlock(); | |
624 | ||
625 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, | |
626 | chains_static, chains_dynamic); | |
627 | if (ret) | |
628 | return ret; | |
629 | ||
630 | /* add back the MAC */ | |
631 | mvmvif->uploaded = false; | |
632 | ||
633 | if (WARN_ON(!vif->bss_conf.assoc)) | |
634 | return -EINVAL; | |
bca49d9a | 635 | |
8ca151b5 | 636 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
8ca151b5 JB |
637 | if (ret) |
638 | return ret; | |
639 | ||
640 | /* add back binding - XXX refactor? */ | |
641 | binding_cmd.id_and_color = | |
642 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
643 | mvmvif->phy_ctxt->color)); | |
644 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
645 | binding_cmd.phy = | |
646 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
647 | mvmvif->phy_ctxt->color)); | |
648 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
649 | mvmvif->color)); | |
650 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) | |
651 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); | |
652 | ||
653 | status = 0; | |
654 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, | |
655 | sizeof(binding_cmd), &binding_cmd, | |
656 | &status); | |
657 | if (ret) { | |
658 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); | |
659 | return ret; | |
660 | } | |
661 | ||
662 | if (status) { | |
663 | IWL_ERR(mvm, "Binding command failed: %u\n", status); | |
664 | return -EIO; | |
665 | } | |
666 | ||
7a453973 | 667 | ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false); |
8ca151b5 JB |
668 | if (ret) |
669 | return ret; | |
670 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); | |
671 | ||
3dfd3a97 | 672 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
673 | if (ret) |
674 | return ret; | |
675 | ||
676 | /* and some quota */ | |
677 | quota_cmd.quotas[0].id_and_color = | |
678 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
679 | mvmvif->phy_ctxt->color)); | |
9a3daf82 EG |
680 | quota_cmd.quotas[0].quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); |
681 | quota_cmd.quotas[0].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); | |
8ca151b5 JB |
682 | |
683 | for (i = 1; i < MAX_BINDINGS; i++) | |
684 | quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); | |
685 | ||
a1022927 | 686 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, |
8ca151b5 JB |
687 | sizeof(quota_cmd), "a_cmd); |
688 | if (ret) | |
689 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); | |
690 | ||
47c8b154 JD |
691 | if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm)) |
692 | IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); | |
693 | ||
8ca151b5 JB |
694 | return 0; |
695 | } | |
696 | ||
4ac6cb59 JB |
697 | static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, |
698 | struct ieee80211_vif *vif) | |
699 | { | |
6d9d32b8 JB |
700 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
701 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
702 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), | |
703 | .mac_id_n_color = | |
704 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
705 | mvmvif->color)), | |
706 | }; | |
4ac6cb59 JB |
707 | struct iwl_host_cmd cmd = { |
708 | .id = NON_QOS_TX_COUNTER_CMD, | |
a1022927 | 709 | .flags = CMD_WANT_SKB, |
4ac6cb59 JB |
710 | }; |
711 | int err; | |
712 | u32 size; | |
713 | ||
3afec639 EG |
714 | cmd.data[0] = &query_cmd; |
715 | cmd.len[0] = sizeof(query_cmd); | |
6d9d32b8 | 716 | |
4ac6cb59 JB |
717 | err = iwl_mvm_send_cmd(mvm, &cmd); |
718 | if (err) | |
719 | return err; | |
720 | ||
65b30348 | 721 | size = iwl_rx_packet_payload_len(cmd.resp_pkt); |
6d9d32b8 | 722 | if (size < sizeof(__le16)) { |
4ac6cb59 | 723 | err = -EINVAL; |
6d9d32b8 JB |
724 | } else { |
725 | err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); | |
3afec639 EG |
726 | /* firmware returns next, not last-used seqno */ |
727 | err = (u16) (err - 0x10); | |
6d9d32b8 | 728 | } |
4ac6cb59 JB |
729 | |
730 | iwl_free_resp(&cmd); | |
731 | return err; | |
732 | } | |
733 | ||
6d9d32b8 JB |
734 | void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
735 | { | |
736 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
737 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
738 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), | |
739 | .mac_id_n_color = | |
740 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
741 | mvmvif->color)), | |
742 | .value = cpu_to_le16(mvmvif->seqno), | |
743 | }; | |
744 | ||
745 | /* return if called during restart, not resume from D3 */ | |
746 | if (!mvmvif->seqno_valid) | |
747 | return; | |
748 | ||
749 | mvmvif->seqno_valid = false; | |
750 | ||
a1022927 | 751 | if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, |
6d9d32b8 JB |
752 | sizeof(query_cmd), &query_cmd)) |
753 | IWL_ERR(mvm, "failed to set non-QoS seqno\n"); | |
754 | } | |
755 | ||
671b5820 LC |
756 | static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) |
757 | { | |
c7d42480 | 758 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
671b5820 LC |
759 | |
760 | iwl_trans_stop_device(mvm->trans); | |
761 | ||
762 | /* | |
763 | * Set the HW restart bit -- this is mostly true as we're | |
764 | * going to load new firmware and reprogram that, though | |
765 | * the reprogramming is going to be manual to avoid adding | |
766 | * all the MACs that aren't support. | |
767 | * We don't have to clear up everything though because the | |
768 | * reprogramming is manual. When we resume, we'll actually | |
769 | * go through a proper restart sequence again to switch | |
770 | * back to the runtime firmware image. | |
771 | */ | |
772 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
773 | ||
671b5820 LC |
774 | mvm->ptk_ivlen = 0; |
775 | mvm->ptk_icvlen = 0; | |
776 | mvm->ptk_ivlen = 0; | |
777 | mvm->ptk_icvlen = 0; | |
778 | ||
779 | return iwl_mvm_load_d3_fw(mvm); | |
780 | } | |
781 | ||
671b5820 LC |
782 | static int |
783 | iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, | |
784 | struct cfg80211_wowlan *wowlan, | |
c8b06a99 | 785 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
671b5820 LC |
786 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
787 | struct ieee80211_sta *ap_sta) | |
8ca151b5 | 788 | { |
1a95c8df | 789 | int ret; |
9d8ce6af | 790 | struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
8ca151b5 | 791 | |
c8b06a99 | 792 | /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ |
8ca151b5 | 793 | |
c8b06a99 | 794 | wowlan_config_cmd->is_11n_connection = |
1a95c8df | 795 | ap_sta->ht_cap.ht_supported; |
8ca151b5 | 796 | |
4ac6cb59 JB |
797 | /* Query the last used seqno and set it */ |
798 | ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); | |
799 | if (ret < 0) | |
671b5820 | 800 | return ret; |
8ca151b5 | 801 | |
c8b06a99 | 802 | wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); |
671b5820 | 803 | |
c8b06a99 | 804 | iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); |
8ca151b5 JB |
805 | |
806 | if (wowlan->disconnect) | |
c8b06a99 | 807 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
808 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
809 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
810 | if (wowlan->magic_pkt) | |
c8b06a99 | 811 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
812 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); |
813 | if (wowlan->gtk_rekey_failure) | |
c8b06a99 | 814 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
815 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
816 | if (wowlan->eap_identity_req) | |
c8b06a99 | 817 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
818 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
819 | if (wowlan->four_way_handshake) | |
c8b06a99 | 820 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
821 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
822 | if (wowlan->n_patterns) | |
c8b06a99 | 823 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
824 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); |
825 | ||
826 | if (wowlan->rfkill_release) | |
c8b06a99 | 827 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
828 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
829 | ||
f0c2646a JB |
830 | if (wowlan->tcp) { |
831 | /* | |
6039f3e1 JB |
832 | * Set the "link change" (really "link lost") flag as well |
833 | * since that implies losing the TCP connection. | |
f0c2646a | 834 | */ |
c8b06a99 | 835 | wowlan_config_cmd->wakeup_filter |= |
f0c2646a JB |
836 | cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | |
837 | IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | | |
838 | IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | | |
839 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
840 | } | |
841 | ||
671b5820 LC |
842 | return 0; |
843 | } | |
f444eb10 | 844 | |
671b5820 LC |
845 | static int |
846 | iwl_mvm_wowlan_config(struct iwl_mvm *mvm, | |
847 | struct cfg80211_wowlan *wowlan, | |
c8b06a99 | 848 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
671b5820 LC |
849 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
850 | struct ieee80211_sta *ap_sta) | |
851 | { | |
852 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; | |
853 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; | |
854 | struct wowlan_key_data key_data = { | |
855 | .use_rsc_tsc = false, | |
856 | .tkip = &tkip_cmd, | |
857 | .use_tkip = false, | |
858 | }; | |
859 | int ret; | |
8ca151b5 | 860 | |
3acc952b LC |
861 | ret = iwl_mvm_switch_to_d3(mvm); |
862 | if (ret) | |
863 | return ret; | |
864 | ||
8ca151b5 JB |
865 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); |
866 | if (ret) | |
671b5820 LC |
867 | return ret; |
868 | ||
869 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
870 | if (!key_data.rsc_tsc) | |
871 | return -ENOMEM; | |
8ca151b5 JB |
872 | |
873 | if (!iwlwifi_mod_params.sw_crypto) { | |
874 | /* | |
875 | * This needs to be unlocked due to lock ordering | |
876 | * constraints. Since we're in the suspend path | |
877 | * that isn't really a problem though. | |
878 | */ | |
879 | mutex_unlock(&mvm->mutex); | |
880 | ieee80211_iter_keys(mvm->hw, vif, | |
881 | iwl_mvm_wowlan_program_keys, | |
882 | &key_data); | |
883 | mutex_lock(&mvm->mutex); | |
884 | if (key_data.error) { | |
885 | ret = -EIO; | |
886 | goto out; | |
887 | } | |
888 | ||
889 | if (key_data.use_rsc_tsc) { | |
890 | struct iwl_host_cmd rsc_tsc_cmd = { | |
891 | .id = WOWLAN_TSC_RSC_PARAM, | |
8ca151b5 JB |
892 | .data[0] = key_data.rsc_tsc, |
893 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
894 | .len[0] = sizeof(*key_data.rsc_tsc), | |
895 | }; | |
896 | ||
897 | ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd); | |
898 | if (ret) | |
899 | goto out; | |
900 | } | |
901 | ||
902 | if (key_data.use_tkip) { | |
903 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
904 | WOWLAN_TKIP_PARAM, | |
a1022927 | 905 | 0, sizeof(tkip_cmd), |
8ca151b5 JB |
906 | &tkip_cmd); |
907 | if (ret) | |
908 | goto out; | |
909 | } | |
910 | ||
911 | if (mvmvif->rekey_data.valid) { | |
912 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); | |
913 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, | |
914 | NL80211_KCK_LEN); | |
915 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
916 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, | |
917 | NL80211_KEK_LEN); | |
918 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
919 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; | |
920 | ||
921 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
a1022927 | 922 | WOWLAN_KEK_KCK_MATERIAL, 0, |
8ca151b5 JB |
923 | sizeof(kek_kck_cmd), |
924 | &kek_kck_cmd); | |
925 | if (ret) | |
926 | goto out; | |
927 | } | |
928 | } | |
929 | ||
c8b06a99 EG |
930 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
931 | sizeof(*wowlan_config_cmd), | |
932 | wowlan_config_cmd); | |
8ca151b5 JB |
933 | if (ret) |
934 | goto out; | |
935 | ||
936 | ret = iwl_mvm_send_patterns(mvm, wowlan); | |
937 | if (ret) | |
938 | goto out; | |
939 | ||
a1022927 | 940 | ret = iwl_mvm_send_proto_offload(mvm, vif, false, 0); |
8ca151b5 JB |
941 | if (ret) |
942 | goto out; | |
943 | ||
f0c2646a | 944 | ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp); |
671b5820 LC |
945 | |
946 | out: | |
947 | kfree(key_data.rsc_tsc); | |
948 | return ret; | |
949 | } | |
950 | ||
3acc952b LC |
951 | static int |
952 | iwl_mvm_netdetect_config(struct iwl_mvm *mvm, | |
953 | struct cfg80211_wowlan *wowlan, | |
954 | struct cfg80211_sched_scan_request *nd_config, | |
955 | struct ieee80211_vif *vif) | |
956 | { | |
c8b06a99 | 957 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b LC |
958 | int ret; |
959 | ||
960 | ret = iwl_mvm_switch_to_d3(mvm); | |
961 | if (ret) | |
962 | return ret; | |
963 | ||
964 | /* rfkill release can be either for wowlan or netdetect */ | |
965 | if (wowlan->rfkill_release) | |
c8b06a99 | 966 | wowlan_config_cmd.wakeup_filter |= |
3acc952b LC |
967 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
968 | ||
c8b06a99 EG |
969 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
970 | sizeof(wowlan_config_cmd), | |
971 | &wowlan_config_cmd); | |
3acc952b LC |
972 | if (ret) |
973 | return ret; | |
974 | ||
19945dfb LC |
975 | ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, |
976 | IWL_MVM_SCAN_NETDETECT); | |
d9718da8 LC |
977 | if (ret) |
978 | return ret; | |
3acc952b | 979 | |
8ed4e659 | 980 | if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) |
d9718da8 LC |
981 | return -EBUSY; |
982 | ||
8ed4e659 | 983 | /* save the sched scan matchsets... */ |
d9718da8 LC |
984 | if (nd_config->n_match_sets) { |
985 | mvm->nd_match_sets = kmemdup(nd_config->match_sets, | |
986 | sizeof(*nd_config->match_sets) * | |
987 | nd_config->n_match_sets, | |
988 | GFP_KERNEL); | |
989 | if (mvm->nd_match_sets) | |
990 | mvm->n_nd_match_sets = nd_config->n_match_sets; | |
991 | } | |
992 | ||
8ed4e659 LC |
993 | /* ...and the sched scan channels for later reporting */ |
994 | mvm->nd_channels = kmemdup(nd_config->channels, | |
995 | sizeof(*nd_config->channels) * | |
996 | nd_config->n_channels, | |
997 | GFP_KERNEL); | |
998 | if (mvm->nd_channels) | |
999 | mvm->n_nd_channels = nd_config->n_channels; | |
1000 | ||
d9718da8 LC |
1001 | return 0; |
1002 | } | |
1003 | ||
1004 | static void iwl_mvm_free_nd(struct iwl_mvm *mvm) | |
1005 | { | |
1006 | kfree(mvm->nd_match_sets); | |
1007 | mvm->nd_match_sets = NULL; | |
1008 | mvm->n_nd_match_sets = 0; | |
8ed4e659 LC |
1009 | kfree(mvm->nd_channels); |
1010 | mvm->nd_channels = NULL; | |
1011 | mvm->n_nd_channels = 0; | |
3acc952b LC |
1012 | } |
1013 | ||
671b5820 LC |
1014 | static int __iwl_mvm_suspend(struct ieee80211_hw *hw, |
1015 | struct cfg80211_wowlan *wowlan, | |
1016 | bool test) | |
1017 | { | |
1018 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
671b5820 LC |
1019 | struct ieee80211_vif *vif = NULL; |
1020 | struct iwl_mvm_vif *mvmvif = NULL; | |
1021 | struct ieee80211_sta *ap_sta = NULL; | |
671b5820 LC |
1022 | struct iwl_d3_manager_config d3_cfg_cmd_data = { |
1023 | /* | |
1024 | * Program the minimum sleep time to 10 seconds, as many | |
1025 | * platforms have issues processing a wakeup signal while | |
1026 | * still being in the process of suspending. | |
1027 | */ | |
1028 | .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), | |
1029 | }; | |
1030 | struct iwl_host_cmd d3_cfg_cmd = { | |
1031 | .id = D3_CONFIG_CMD, | |
1032 | .flags = CMD_WANT_SKB, | |
1033 | .data[0] = &d3_cfg_cmd_data, | |
1034 | .len[0] = sizeof(d3_cfg_cmd_data), | |
1035 | }; | |
1036 | int ret; | |
1037 | int len __maybe_unused; | |
1038 | ||
1039 | if (!wowlan) { | |
1040 | /* | |
1041 | * mac80211 shouldn't get here, but for D3 test | |
1042 | * it doesn't warrant a warning | |
1043 | */ | |
1044 | WARN_ON(!test); | |
1045 | return -EINVAL; | |
1046 | } | |
1047 | ||
1048 | mutex_lock(&mvm->mutex); | |
1049 | ||
7f549e2c LC |
1050 | vif = iwl_mvm_get_bss_vif(mvm); |
1051 | if (IS_ERR_OR_NULL(vif)) { | |
671b5820 LC |
1052 | ret = 1; |
1053 | goto out_noreset; | |
1054 | } | |
1055 | ||
671b5820 LC |
1056 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1057 | ||
3acc952b LC |
1058 | if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) { |
1059 | /* if we're not associated, this must be netdetect */ | |
1060 | if (!wowlan->nd_config && !mvm->nd_config) { | |
1061 | ret = 1; | |
1062 | goto out_noreset; | |
1063 | } | |
1064 | ||
1065 | ret = iwl_mvm_netdetect_config( | |
1066 | mvm, wowlan, wowlan->nd_config ?: mvm->nd_config, vif); | |
1067 | if (ret) | |
1068 | goto out; | |
2021a89d LC |
1069 | |
1070 | mvm->net_detect = true; | |
3acc952b | 1071 | } else { |
c8b06a99 | 1072 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b | 1073 | |
1e4d19ca LC |
1074 | ap_sta = rcu_dereference_protected( |
1075 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
1076 | lockdep_is_held(&mvm->mutex)); | |
1077 | if (IS_ERR_OR_NULL(ap_sta)) { | |
1078 | ret = -EINVAL; | |
1079 | goto out_noreset; | |
1080 | } | |
671b5820 | 1081 | |
1e4d19ca LC |
1082 | ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1083 | vif, mvmvif, ap_sta); | |
1084 | if (ret) | |
1085 | goto out_noreset; | |
1e4d19ca LC |
1086 | ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1087 | vif, mvmvif, ap_sta); | |
1088 | if (ret) | |
3c2f3b20 | 1089 | goto out; |
2021a89d LC |
1090 | |
1091 | mvm->net_detect = false; | |
1e4d19ca | 1092 | } |
f0c2646a | 1093 | |
c1cb92fc | 1094 | ret = iwl_mvm_power_update_device(mvm); |
64b928c4 AB |
1095 | if (ret) |
1096 | goto out; | |
1097 | ||
999609f1 | 1098 | ret = iwl_mvm_power_update_mac(mvm); |
ee1e8422 AB |
1099 | if (ret) |
1100 | goto out; | |
1101 | ||
b0114714 JB |
1102 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1103 | if (mvm->d3_wake_sysassert) | |
1104 | d3_cfg_cmd_data.wakeup_flags |= | |
1105 | cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); | |
1106 | #endif | |
1107 | ||
8ca151b5 | 1108 | /* must be last -- this switches firmware state */ |
debff618 | 1109 | ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); |
8ca151b5 JB |
1110 | if (ret) |
1111 | goto out; | |
debff618 | 1112 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
65b30348 JB |
1113 | len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); |
1114 | if (len >= sizeof(u32)) { | |
debff618 JB |
1115 | mvm->d3_test_pme_ptr = |
1116 | le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); | |
debff618 JB |
1117 | } |
1118 | #endif | |
1119 | iwl_free_resp(&d3_cfg_cmd); | |
8ca151b5 JB |
1120 | |
1121 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1122 | ||
debff618 | 1123 | iwl_trans_d3_suspend(mvm->trans, test); |
8ca151b5 | 1124 | out: |
d9718da8 | 1125 | if (ret < 0) { |
48e67751 | 1126 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); |
8ca151b5 | 1127 | ieee80211_restart_hw(mvm->hw); |
d9718da8 LC |
1128 | iwl_mvm_free_nd(mvm); |
1129 | } | |
b70ab727 | 1130 | out_noreset: |
8ca151b5 JB |
1131 | mutex_unlock(&mvm->mutex); |
1132 | ||
1133 | return ret; | |
1134 | } | |
1135 | ||
6735943f EP |
1136 | static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm) |
1137 | { | |
1138 | struct iwl_notification_wait wait_d3; | |
6eb031d2 | 1139 | static const u16 d3_notif[] = { D3_CONFIG_CMD }; |
6735943f EP |
1140 | int ret; |
1141 | ||
1142 | iwl_init_notification_wait(&mvm->notif_wait, &wait_d3, | |
1143 | d3_notif, ARRAY_SIZE(d3_notif), | |
1144 | NULL, NULL); | |
1145 | ||
1146 | ret = iwl_mvm_enter_d0i3(mvm->hw->priv); | |
1147 | if (ret) | |
1148 | goto remove_notif; | |
1149 | ||
1150 | ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ); | |
1151 | WARN_ON_ONCE(ret); | |
1152 | return ret; | |
1153 | ||
1154 | remove_notif: | |
1155 | iwl_remove_notification(&mvm->notif_wait, &wait_d3); | |
1156 | return ret; | |
1157 | } | |
1158 | ||
debff618 JB |
1159 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
1160 | { | |
d15a747f | 1161 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
c43fe907 EP |
1162 | int ret; |
1163 | ||
cf8c3cff LC |
1164 | /* make sure the d0i3 exit work is not pending */ |
1165 | flush_work(&mvm->d0i3_exit_work); | |
1166 | ||
c43fe907 EP |
1167 | ret = iwl_trans_suspend(mvm->trans); |
1168 | if (ret) | |
1169 | return ret; | |
d15a747f | 1170 | |
54154618 EP |
1171 | mvm->trans->wowlan_d0i3 = wowlan->any; |
1172 | if (mvm->trans->wowlan_d0i3) { | |
91742449 | 1173 | /* 'any' trigger means d0i3 usage */ |
6735943f | 1174 | if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) { |
c43fe907 | 1175 | ret = iwl_mvm_enter_d0i3_sync(mvm); |
6735943f EP |
1176 | |
1177 | if (ret) | |
1178 | return ret; | |
1179 | } | |
1180 | ||
d15a747f EP |
1181 | mutex_lock(&mvm->d0i3_suspend_mutex); |
1182 | __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1183 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
6dfb36c8 EP |
1184 | |
1185 | iwl_trans_d3_suspend(mvm->trans, false); | |
1186 | ||
d15a747f EP |
1187 | return 0; |
1188 | } | |
1189 | ||
debff618 JB |
1190 | return __iwl_mvm_suspend(hw, wowlan, false); |
1191 | } | |
1192 | ||
6d9d32b8 JB |
1193 | /* converted data from the different status responses */ |
1194 | struct iwl_wowlan_status_data { | |
1195 | u16 pattern_number; | |
1196 | u16 qos_seq_ctr[8]; | |
1197 | u32 wakeup_reasons; | |
1198 | u32 wake_packet_length; | |
1199 | u32 wake_packet_bufsize; | |
1200 | const u8 *wake_packet; | |
1201 | }; | |
1202 | ||
7abc4632 JB |
1203 | static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, |
1204 | struct ieee80211_vif *vif, | |
6d9d32b8 | 1205 | struct iwl_wowlan_status_data *status) |
9b26b500 | 1206 | { |
7abc4632 | 1207 | struct sk_buff *pkt = NULL; |
9b26b500 JB |
1208 | struct cfg80211_wowlan_wakeup wakeup = { |
1209 | .pattern_idx = -1, | |
1210 | }; | |
1211 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
6d9d32b8 | 1212 | u32 reasons = status->wakeup_reasons; |
9b26b500 JB |
1213 | |
1214 | if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { | |
1215 | wakeup_report = NULL; | |
1216 | goto report; | |
1217 | } | |
1218 | ||
f444eb10 | 1219 | if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) |
9b26b500 | 1220 | wakeup.magic_pkt = true; |
9b26b500 | 1221 | |
f444eb10 | 1222 | if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) |
9b26b500 | 1223 | wakeup.pattern_idx = |
6d9d32b8 | 1224 | status->pattern_number; |
9b26b500 JB |
1225 | |
1226 | if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1227 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) | |
1228 | wakeup.disconnect = true; | |
1229 | ||
f444eb10 | 1230 | if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) |
9b26b500 | 1231 | wakeup.gtk_rekey_failure = true; |
9b26b500 | 1232 | |
f444eb10 | 1233 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
9b26b500 | 1234 | wakeup.rfkill_release = true; |
9b26b500 | 1235 | |
f444eb10 | 1236 | if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) |
9b26b500 | 1237 | wakeup.eap_identity_req = true; |
9b26b500 | 1238 | |
f444eb10 | 1239 | if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) |
9b26b500 | 1240 | wakeup.four_way_handshake = true; |
9b26b500 | 1241 | |
f0c2646a JB |
1242 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) |
1243 | wakeup.tcp_connlost = true; | |
1244 | ||
1245 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) | |
1246 | wakeup.tcp_nomoretokens = true; | |
1247 | ||
1248 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) | |
1249 | wakeup.tcp_match = true; | |
1250 | ||
9b26b500 | 1251 | if (status->wake_packet_bufsize) { |
6d9d32b8 JB |
1252 | int pktsize = status->wake_packet_bufsize; |
1253 | int pktlen = status->wake_packet_length; | |
f444eb10 JB |
1254 | const u8 *pktdata = status->wake_packet; |
1255 | struct ieee80211_hdr *hdr = (void *)pktdata; | |
1256 | int truncated = pktlen - pktsize; | |
1257 | ||
1258 | /* this would be a firmware bug */ | |
1259 | if (WARN_ON_ONCE(truncated < 0)) | |
1260 | truncated = 0; | |
1261 | ||
1262 | if (ieee80211_is_data(hdr->frame_control)) { | |
1263 | int hdrlen = ieee80211_hdrlen(hdr->frame_control); | |
1264 | int ivlen = 0, icvlen = 4; /* also FCS */ | |
9b26b500 | 1265 | |
9b26b500 JB |
1266 | pkt = alloc_skb(pktsize, GFP_KERNEL); |
1267 | if (!pkt) | |
1268 | goto report; | |
f444eb10 JB |
1269 | |
1270 | memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen); | |
1271 | pktdata += hdrlen; | |
1272 | pktsize -= hdrlen; | |
1273 | ||
1274 | if (ieee80211_has_protected(hdr->frame_control)) { | |
7abc4632 JB |
1275 | /* |
1276 | * This is unlocked and using gtk_i(c)vlen, | |
1277 | * but since everything is under RTNL still | |
1278 | * that's not really a problem - changing | |
1279 | * it would be difficult. | |
1280 | */ | |
f444eb10 JB |
1281 | if (is_multicast_ether_addr(hdr->addr1)) { |
1282 | ivlen = mvm->gtk_ivlen; | |
1283 | icvlen += mvm->gtk_icvlen; | |
1284 | } else { | |
1285 | ivlen = mvm->ptk_ivlen; | |
1286 | icvlen += mvm->ptk_icvlen; | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | /* if truncated, FCS/ICV is (partially) gone */ | |
1291 | if (truncated >= icvlen) { | |
1292 | icvlen = 0; | |
1293 | truncated -= icvlen; | |
1294 | } else { | |
1295 | icvlen -= truncated; | |
1296 | truncated = 0; | |
1297 | } | |
1298 | ||
1299 | pktsize -= ivlen + icvlen; | |
1300 | pktdata += ivlen; | |
1301 | ||
1302 | memcpy(skb_put(pkt, pktsize), pktdata, pktsize); | |
1303 | ||
9b26b500 JB |
1304 | if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
1305 | goto report; | |
1306 | wakeup.packet = pkt->data; | |
1307 | wakeup.packet_present_len = pkt->len; | |
f444eb10 | 1308 | wakeup.packet_len = pkt->len - truncated; |
9b26b500 JB |
1309 | wakeup.packet_80211 = false; |
1310 | } else { | |
f444eb10 JB |
1311 | int fcslen = 4; |
1312 | ||
1313 | if (truncated >= 4) { | |
1314 | truncated -= 4; | |
1315 | fcslen = 0; | |
1316 | } else { | |
1317 | fcslen -= truncated; | |
1318 | truncated = 0; | |
1319 | } | |
1320 | pktsize -= fcslen; | |
9b26b500 JB |
1321 | wakeup.packet = status->wake_packet; |
1322 | wakeup.packet_present_len = pktsize; | |
f444eb10 | 1323 | wakeup.packet_len = pktlen - truncated; |
9b26b500 JB |
1324 | wakeup.packet_80211 = true; |
1325 | } | |
1326 | } | |
1327 | ||
1328 | report: | |
1329 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
1330 | kfree_skb(pkt); | |
7abc4632 | 1331 | } |
9b26b500 | 1332 | |
6d9d32b8 JB |
1333 | static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, |
1334 | struct ieee80211_key_seq *seq) | |
1335 | { | |
1336 | u64 pn; | |
1337 | ||
1338 | pn = le64_to_cpu(sc->pn); | |
1339 | seq->ccmp.pn[0] = pn >> 40; | |
1340 | seq->ccmp.pn[1] = pn >> 32; | |
1341 | seq->ccmp.pn[2] = pn >> 24; | |
1342 | seq->ccmp.pn[3] = pn >> 16; | |
1343 | seq->ccmp.pn[4] = pn >> 8; | |
1344 | seq->ccmp.pn[5] = pn; | |
1345 | } | |
1346 | ||
1347 | static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, | |
1348 | struct ieee80211_key_seq *seq) | |
1349 | { | |
1350 | seq->tkip.iv32 = le32_to_cpu(sc->iv32); | |
1351 | seq->tkip.iv16 = le16_to_cpu(sc->iv16); | |
1352 | } | |
1353 | ||
1354 | static void iwl_mvm_set_aes_rx_seq(struct aes_sc *scs, | |
1355 | struct ieee80211_key_conf *key) | |
1356 | { | |
1357 | int tid; | |
1358 | ||
1359 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1360 | ||
1361 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1362 | struct ieee80211_key_seq seq = {}; | |
1363 | ||
1364 | iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); | |
1365 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs, | |
1370 | struct ieee80211_key_conf *key) | |
1371 | { | |
1372 | int tid; | |
1373 | ||
1374 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1375 | ||
1376 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1377 | struct ieee80211_key_seq seq = {}; | |
1378 | ||
1379 | iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq); | |
1380 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, | |
3afec639 | 1385 | struct iwl_wowlan_status *status) |
6d9d32b8 JB |
1386 | { |
1387 | union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc; | |
1388 | ||
1389 | switch (key->cipher) { | |
1390 | case WLAN_CIPHER_SUITE_CCMP: | |
1391 | iwl_mvm_set_aes_rx_seq(rsc->aes.multicast_rsc, key); | |
1392 | break; | |
1393 | case WLAN_CIPHER_SUITE_TKIP: | |
1394 | iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key); | |
1395 | break; | |
1396 | default: | |
1397 | WARN_ON(1); | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | struct iwl_mvm_d3_gtk_iter_data { | |
3afec639 | 1402 | struct iwl_wowlan_status *status; |
6d9d32b8 JB |
1403 | void *last_gtk; |
1404 | u32 cipher; | |
1405 | bool find_phase, unhandled_cipher; | |
1406 | int num_keys; | |
1407 | }; | |
1408 | ||
1409 | static void iwl_mvm_d3_update_gtks(struct ieee80211_hw *hw, | |
1410 | struct ieee80211_vif *vif, | |
1411 | struct ieee80211_sta *sta, | |
1412 | struct ieee80211_key_conf *key, | |
1413 | void *_data) | |
1414 | { | |
1415 | struct iwl_mvm_d3_gtk_iter_data *data = _data; | |
1416 | ||
1417 | if (data->unhandled_cipher) | |
1418 | return; | |
1419 | ||
1420 | switch (key->cipher) { | |
1421 | case WLAN_CIPHER_SUITE_WEP40: | |
1422 | case WLAN_CIPHER_SUITE_WEP104: | |
1423 | /* ignore WEP completely, nothing to do */ | |
1424 | return; | |
1425 | case WLAN_CIPHER_SUITE_CCMP: | |
1426 | case WLAN_CIPHER_SUITE_TKIP: | |
1427 | /* we support these */ | |
1428 | break; | |
1429 | default: | |
1430 | /* everything else (even CMAC for MFP) - disconnect from AP */ | |
1431 | data->unhandled_cipher = true; | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | data->num_keys++; | |
1436 | ||
1437 | /* | |
1438 | * pairwise key - update sequence counters only; | |
1439 | * note that this assumes no TDLS sessions are active | |
1440 | */ | |
1441 | if (sta) { | |
1442 | struct ieee80211_key_seq seq = {}; | |
1443 | union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc; | |
1444 | ||
1445 | if (data->find_phase) | |
1446 | return; | |
1447 | ||
1448 | switch (key->cipher) { | |
1449 | case WLAN_CIPHER_SUITE_CCMP: | |
6d9d32b8 | 1450 | iwl_mvm_set_aes_rx_seq(sc->aes.unicast_rsc, key); |
6645d5e4 | 1451 | atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn)); |
6d9d32b8 JB |
1452 | break; |
1453 | case WLAN_CIPHER_SUITE_TKIP: | |
1454 | iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq); | |
1455 | iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key); | |
6645d5e4 | 1456 | ieee80211_set_key_tx_seq(key, &seq); |
6d9d32b8 JB |
1457 | break; |
1458 | } | |
6d9d32b8 JB |
1459 | |
1460 | /* that's it for this key */ | |
1461 | return; | |
1462 | } | |
1463 | ||
1464 | if (data->find_phase) { | |
1465 | data->last_gtk = key; | |
1466 | data->cipher = key->cipher; | |
1467 | return; | |
1468 | } | |
1469 | ||
1470 | if (data->status->num_of_gtk_rekeys) | |
1471 | ieee80211_remove_key(key); | |
1472 | else if (data->last_gtk == key) | |
1473 | iwl_mvm_set_key_rx_seq(key, data->status); | |
1474 | } | |
1475 | ||
1476 | static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, | |
1477 | struct ieee80211_vif *vif, | |
3afec639 | 1478 | struct iwl_wowlan_status *status) |
6d9d32b8 JB |
1479 | { |
1480 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1481 | struct iwl_mvm_d3_gtk_iter_data gtkdata = { | |
1482 | .status = status, | |
1483 | }; | |
431591cc EP |
1484 | u32 disconnection_reasons = |
1485 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1486 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; | |
6d9d32b8 JB |
1487 | |
1488 | if (!status || !vif->bss_conf.bssid) | |
1489 | return false; | |
1490 | ||
431591cc EP |
1491 | if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons) |
1492 | return false; | |
1493 | ||
6d9d32b8 JB |
1494 | /* find last GTK that we used initially, if any */ |
1495 | gtkdata.find_phase = true; | |
1496 | ieee80211_iter_keys(mvm->hw, vif, | |
1497 | iwl_mvm_d3_update_gtks, >kdata); | |
1498 | /* not trying to keep connections with MFP/unhandled ciphers */ | |
1499 | if (gtkdata.unhandled_cipher) | |
1500 | return false; | |
1501 | if (!gtkdata.num_keys) | |
cfa88893 | 1502 | goto out; |
6d9d32b8 JB |
1503 | if (!gtkdata.last_gtk) |
1504 | return false; | |
1505 | ||
1506 | /* | |
1507 | * invalidate all other GTKs that might still exist and update | |
1508 | * the one that we used | |
1509 | */ | |
1510 | gtkdata.find_phase = false; | |
1511 | ieee80211_iter_keys(mvm->hw, vif, | |
1512 | iwl_mvm_d3_update_gtks, >kdata); | |
1513 | ||
1514 | if (status->num_of_gtk_rekeys) { | |
1515 | struct ieee80211_key_conf *key; | |
1516 | struct { | |
1517 | struct ieee80211_key_conf conf; | |
1518 | u8 key[32]; | |
1519 | } conf = { | |
1520 | .conf.cipher = gtkdata.cipher, | |
1521 | .conf.keyidx = status->gtk.key_index, | |
1522 | }; | |
1523 | ||
1524 | switch (gtkdata.cipher) { | |
1525 | case WLAN_CIPHER_SUITE_CCMP: | |
1526 | conf.conf.keylen = WLAN_KEY_LEN_CCMP; | |
1527 | memcpy(conf.conf.key, status->gtk.decrypt_key, | |
1528 | WLAN_KEY_LEN_CCMP); | |
1529 | break; | |
1530 | case WLAN_CIPHER_SUITE_TKIP: | |
1531 | conf.conf.keylen = WLAN_KEY_LEN_TKIP; | |
1532 | memcpy(conf.conf.key, status->gtk.decrypt_key, 16); | |
1533 | /* leave TX MIC key zeroed, we don't use it anyway */ | |
1534 | memcpy(conf.conf.key + | |
1535 | NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, | |
1536 | status->gtk.tkip_mic_key, 8); | |
1537 | break; | |
1538 | } | |
1539 | ||
1540 | key = ieee80211_gtk_rekey_add(vif, &conf.conf); | |
1541 | if (IS_ERR(key)) | |
1542 | return false; | |
1543 | iwl_mvm_set_key_rx_seq(key, status); | |
1544 | } | |
1545 | ||
1546 | if (status->num_of_gtk_rekeys) { | |
1547 | __be64 replay_ctr = | |
1548 | cpu_to_be64(le64_to_cpu(status->replay_ctr)); | |
1549 | ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, | |
1550 | (void *)&replay_ctr, GFP_KERNEL); | |
1551 | } | |
1552 | ||
cfa88893 | 1553 | out: |
6d9d32b8 JB |
1554 | mvmvif->seqno_valid = true; |
1555 | /* +0x10 because the set API expects next-to-use, not last-used */ | |
1556 | mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10; | |
1557 | ||
1558 | return true; | |
1559 | } | |
1560 | ||
ec12f457 LC |
1561 | static struct iwl_wowlan_status * |
1562 | iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
7abc4632 JB |
1563 | { |
1564 | u32 base = mvm->error_event_table; | |
1565 | struct error_table_start { | |
1566 | /* cf. struct iwl_error_event_table */ | |
1567 | u32 valid; | |
1568 | u32 error_id; | |
1569 | } err_info; | |
1570 | struct iwl_host_cmd cmd = { | |
1571 | .id = WOWLAN_GET_STATUSES, | |
a1022927 | 1572 | .flags = CMD_WANT_SKB, |
7abc4632 | 1573 | }; |
ec12f457 LC |
1574 | struct iwl_wowlan_status *status, *fw_status; |
1575 | int ret, len, status_size; | |
7abc4632 JB |
1576 | |
1577 | iwl_trans_read_mem_bytes(mvm->trans, base, | |
1578 | &err_info, sizeof(err_info)); | |
1579 | ||
1580 | if (err_info.valid) { | |
ec12f457 LC |
1581 | IWL_INFO(mvm, "error table is valid (%d) with error (%d)\n", |
1582 | err_info.valid, err_info.error_id); | |
7abc4632 JB |
1583 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { |
1584 | struct cfg80211_wowlan_wakeup wakeup = { | |
1585 | .rfkill_release = true, | |
1586 | }; | |
1587 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
1588 | GFP_KERNEL); | |
1589 | } | |
ec12f457 | 1590 | return ERR_PTR(-EIO); |
7abc4632 JB |
1591 | } |
1592 | ||
1593 | /* only for tracing for now */ | |
a1022927 | 1594 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL); |
7abc4632 JB |
1595 | if (ret) |
1596 | IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); | |
1597 | ||
1598 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1599 | if (ret) { | |
1600 | IWL_ERR(mvm, "failed to query status (%d)\n", ret); | |
ec12f457 | 1601 | return ERR_PTR(ret); |
7abc4632 JB |
1602 | } |
1603 | ||
1604 | /* RF-kill already asserted again... */ | |
ec12f457 | 1605 | if (!cmd.resp_pkt) { |
e111e968 | 1606 | fw_status = ERR_PTR(-ERFKILL); |
ec12f457 LC |
1607 | goto out_free_resp; |
1608 | } | |
7abc4632 | 1609 | |
3afec639 | 1610 | status_size = sizeof(*fw_status); |
6d9d32b8 | 1611 | |
65b30348 JB |
1612 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); |
1613 | if (len < status_size) { | |
7abc4632 | 1614 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); |
e111e968 | 1615 | fw_status = ERR_PTR(-EIO); |
ec12f457 LC |
1616 | goto out_free_resp; |
1617 | } | |
1618 | ||
1619 | status = (void *)cmd.resp_pkt->data; | |
1620 | if (len != (status_size + | |
1621 | ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4))) { | |
1622 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
e111e968 | 1623 | fw_status = ERR_PTR(-EIO); |
7abc4632 JB |
1624 | goto out_free_resp; |
1625 | } | |
1626 | ||
ec12f457 LC |
1627 | fw_status = kmemdup(status, len, GFP_KERNEL); |
1628 | ||
1629 | out_free_resp: | |
1630 | iwl_free_resp(&cmd); | |
e111e968 | 1631 | return fw_status; |
ec12f457 LC |
1632 | } |
1633 | ||
1634 | /* releases the MVM mutex */ | |
1635 | static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, | |
1636 | struct ieee80211_vif *vif) | |
1637 | { | |
1638 | struct iwl_wowlan_status_data status; | |
1639 | struct iwl_wowlan_status *fw_status; | |
1640 | int i; | |
1641 | bool keep; | |
1642 | struct ieee80211_sta *ap_sta; | |
1643 | struct iwl_mvm_sta *mvm_ap_sta; | |
1644 | ||
1645 | fw_status = iwl_mvm_get_wakeup_status(mvm, vif); | |
1646 | if (IS_ERR_OR_NULL(fw_status)) | |
1647 | goto out_unlock; | |
3afec639 EG |
1648 | |
1649 | status.pattern_number = le16_to_cpu(fw_status->pattern_number); | |
1650 | for (i = 0; i < 8; i++) | |
1651 | status.qos_seq_ctr[i] = | |
1652 | le16_to_cpu(fw_status->qos_seq_ctr[i]); | |
1653 | status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons); | |
1654 | status.wake_packet_length = | |
1655 | le32_to_cpu(fw_status->wake_packet_length); | |
1656 | status.wake_packet_bufsize = | |
1657 | le32_to_cpu(fw_status->wake_packet_bufsize); | |
1658 | status.wake_packet = fw_status->wake_packet; | |
7abc4632 | 1659 | |
6d9d32b8 JB |
1660 | /* still at hard-coded place 0 for D3 image */ |
1661 | ap_sta = rcu_dereference_protected( | |
1662 | mvm->fw_id_to_mac_id[0], | |
1663 | lockdep_is_held(&mvm->mutex)); | |
1664 | if (IS_ERR_OR_NULL(ap_sta)) | |
ec12f457 | 1665 | goto out_free; |
6d9d32b8 | 1666 | |
9d8ce6af | 1667 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
6d9d32b8 JB |
1668 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
1669 | u16 seq = status.qos_seq_ctr[i]; | |
1670 | /* firmware stores last-used value, we store next value */ | |
1671 | seq += 0x10; | |
1672 | mvm_ap_sta->tid_data[i].seq_number = seq; | |
1673 | } | |
1674 | ||
7abc4632 JB |
1675 | /* now we have all the data we need, unlock to avoid mac80211 issues */ |
1676 | mutex_unlock(&mvm->mutex); | |
1677 | ||
6d9d32b8 JB |
1678 | iwl_mvm_report_wakeup_reasons(mvm, vif, &status); |
1679 | ||
3afec639 | 1680 | keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status); |
6d9d32b8 | 1681 | |
ec12f457 | 1682 | kfree(fw_status); |
6d9d32b8 | 1683 | return keep; |
7abc4632 | 1684 | |
ec12f457 LC |
1685 | out_free: |
1686 | kfree(fw_status); | |
1687 | out_unlock: | |
7abc4632 | 1688 | mutex_unlock(&mvm->mutex); |
6d9d32b8 | 1689 | return false; |
9b26b500 JB |
1690 | } |
1691 | ||
8ed4e659 LC |
1692 | struct iwl_mvm_nd_query_results { |
1693 | u32 matched_profiles; | |
1694 | struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES]; | |
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; | |
1707 | ||
1708 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1709 | if (ret) { | |
1710 | IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); | |
8ed4e659 | 1711 | return ret; |
b04998f3 LC |
1712 | } |
1713 | ||
1714 | /* RF-kill already asserted again... */ | |
8ed4e659 LC |
1715 | if (!cmd.resp_pkt) { |
1716 | ret = -ERFKILL; | |
b04998f3 | 1717 | goto out_free_resp; |
8ed4e659 | 1718 | } |
b04998f3 LC |
1719 | |
1720 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); | |
1721 | if (len < sizeof(*query)) { | |
1722 | IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); | |
8ed4e659 | 1723 | ret = -EIO; |
b04998f3 LC |
1724 | goto out_free_resp; |
1725 | } | |
1726 | ||
1727 | query = (void *)cmd.resp_pkt->data; | |
1728 | ||
8ed4e659 LC |
1729 | results->matched_profiles = le32_to_cpu(query->matched_profiles); |
1730 | memcpy(results->matches, query->matches, sizeof(results->matches)); | |
b04998f3 | 1731 | |
6bbd5521 | 1732 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
484b3d13 LC |
1733 | mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); |
1734 | #endif | |
1735 | ||
b04998f3 LC |
1736 | out_free_resp: |
1737 | iwl_free_resp(&cmd); | |
1738 | return ret; | |
1739 | } | |
1740 | ||
2021a89d LC |
1741 | static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, |
1742 | struct ieee80211_vif *vif) | |
1743 | { | |
d9718da8 | 1744 | struct cfg80211_wowlan_nd_info *net_detect = NULL; |
2021a89d LC |
1745 | struct cfg80211_wowlan_wakeup wakeup = { |
1746 | .pattern_idx = -1, | |
1747 | }; | |
1748 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
8ed4e659 | 1749 | struct iwl_mvm_nd_query_results query; |
2021a89d | 1750 | struct iwl_wowlan_status *fw_status; |
d9718da8 | 1751 | unsigned long matched_profiles; |
2021a89d | 1752 | u32 reasons = 0; |
8ed4e659 | 1753 | int i, j, n_matches, ret; |
2021a89d LC |
1754 | |
1755 | fw_status = iwl_mvm_get_wakeup_status(mvm, vif); | |
2fc863a5 | 1756 | if (!IS_ERR_OR_NULL(fw_status)) { |
2021a89d | 1757 | reasons = le32_to_cpu(fw_status->wakeup_reasons); |
2fc863a5 HD |
1758 | kfree(fw_status); |
1759 | } | |
2021a89d LC |
1760 | |
1761 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) | |
1762 | wakeup.rfkill_release = true; | |
1763 | ||
b04998f3 LC |
1764 | if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) |
1765 | goto out; | |
1766 | ||
8ed4e659 LC |
1767 | ret = iwl_mvm_netdetect_query_results(mvm, &query); |
1768 | if (ret || !query.matched_profiles) { | |
2021a89d | 1769 | wakeup_report = NULL; |
b04998f3 | 1770 | goto out; |
2021a89d LC |
1771 | } |
1772 | ||
8ed4e659 | 1773 | matched_profiles = query.matched_profiles; |
d9718da8 LC |
1774 | if (mvm->n_nd_match_sets) { |
1775 | n_matches = hweight_long(matched_profiles); | |
1776 | } else { | |
1777 | IWL_ERR(mvm, "no net detect match information available\n"); | |
1778 | n_matches = 0; | |
1779 | } | |
1780 | ||
1781 | net_detect = kzalloc(sizeof(*net_detect) + | |
1782 | (n_matches * sizeof(net_detect->matches[0])), | |
1783 | GFP_KERNEL); | |
1784 | if (!net_detect || !n_matches) | |
1785 | goto out_report_nd; | |
1786 | ||
1787 | for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { | |
8ed4e659 | 1788 | struct iwl_scan_offload_profile_match *fw_match; |
d9718da8 | 1789 | struct cfg80211_wowlan_nd_match *match; |
ae90c2e5 | 1790 | int idx, n_channels = 0; |
8ed4e659 LC |
1791 | |
1792 | fw_match = &query.matches[i]; | |
1793 | ||
1794 | for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++) | |
1795 | n_channels += hweight8(fw_match->matching_channels[j]); | |
d9718da8 | 1796 | |
8ed4e659 LC |
1797 | match = kzalloc(sizeof(*match) + |
1798 | (n_channels * sizeof(*match->channels)), | |
1799 | GFP_KERNEL); | |
d9718da8 LC |
1800 | if (!match) |
1801 | goto out_report_nd; | |
1802 | ||
8ed4e659 LC |
1803 | net_detect->matches[net_detect->n_matches++] = match; |
1804 | ||
ae90c2e5 LC |
1805 | /* We inverted the order of the SSIDs in the scan |
1806 | * request, so invert the index here. | |
1807 | */ | |
1808 | idx = mvm->n_nd_match_sets - i - 1; | |
1809 | match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; | |
1810 | memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, | |
d9718da8 LC |
1811 | match->ssid.ssid_len); |
1812 | ||
8ed4e659 LC |
1813 | if (mvm->n_nd_channels < n_channels) |
1814 | continue; | |
1815 | ||
1816 | for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++) | |
1817 | if (fw_match->matching_channels[j / 8] & (BIT(j % 8))) | |
1818 | match->channels[match->n_channels++] = | |
1819 | mvm->nd_channels[j]->center_freq; | |
d9718da8 LC |
1820 | } |
1821 | ||
1822 | out_report_nd: | |
1823 | wakeup.net_detect = net_detect; | |
b04998f3 | 1824 | out: |
d9718da8 LC |
1825 | iwl_mvm_free_nd(mvm); |
1826 | ||
2021a89d LC |
1827 | mutex_unlock(&mvm->mutex); |
1828 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
d9718da8 LC |
1829 | |
1830 | if (net_detect) { | |
1831 | for (i = 0; i < net_detect->n_matches; i++) | |
1832 | kfree(net_detect->matches[i]); | |
1833 | kfree(net_detect); | |
1834 | } | |
2021a89d LC |
1835 | } |
1836 | ||
afc66bb7 JB |
1837 | static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm) |
1838 | { | |
1839 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1840 | const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN]; | |
1841 | u32 len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
1842 | u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
1843 | ||
1844 | if (!mvm->store_d3_resume_sram) | |
1845 | return; | |
1846 | ||
1847 | if (!mvm->d3_resume_sram) { | |
1848 | mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL); | |
1849 | if (!mvm->d3_resume_sram) | |
1850 | return; | |
1851 | } | |
1852 | ||
1853 | iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len); | |
1854 | #endif | |
1855 | } | |
1856 | ||
6d9d32b8 JB |
1857 | static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, |
1858 | struct ieee80211_vif *vif) | |
1859 | { | |
1860 | /* skip the one we keep connection on */ | |
1861 | if (data == vif) | |
1862 | return; | |
1863 | ||
1864 | if (vif->type == NL80211_IFTYPE_STATION) | |
1865 | ieee80211_resume_disconnect(vif); | |
1866 | } | |
1867 | ||
debff618 | 1868 | static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) |
8ca151b5 | 1869 | { |
8ca151b5 | 1870 | struct ieee80211_vif *vif = NULL; |
8ca151b5 JB |
1871 | int ret; |
1872 | enum iwl_d3_status d3_status; | |
6d9d32b8 | 1873 | bool keep = false; |
8ca151b5 JB |
1874 | |
1875 | mutex_lock(&mvm->mutex); | |
1876 | ||
1877 | /* get the BSS vif pointer again */ | |
7f549e2c LC |
1878 | vif = iwl_mvm_get_bss_vif(mvm); |
1879 | if (IS_ERR_OR_NULL(vif)) | |
a500e469 | 1880 | goto err; |
8ca151b5 | 1881 | |
debff618 | 1882 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test); |
8ca151b5 | 1883 | if (ret) |
a500e469 | 1884 | goto err; |
8ca151b5 JB |
1885 | |
1886 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
1887 | IWL_INFO(mvm, "Device was reset during suspend\n"); | |
a500e469 | 1888 | goto err; |
8ca151b5 JB |
1889 | } |
1890 | ||
afc66bb7 JB |
1891 | /* query SRAM first in case we want event logging */ |
1892 | iwl_mvm_read_d3_sram(mvm); | |
1893 | ||
47c8b154 JD |
1894 | /* |
1895 | * Query the current location and source from the D3 firmware so we | |
1896 | * can play it back when we re-intiailize the D0 firmware | |
1897 | */ | |
1898 | iwl_mvm_update_changed_regdom(mvm); | |
1899 | ||
2021a89d LC |
1900 | if (mvm->net_detect) { |
1901 | iwl_mvm_query_netdetect_reasons(mvm, vif); | |
e0ede177 LC |
1902 | /* has unlocked the mutex, so skip that */ |
1903 | goto out; | |
2021a89d LC |
1904 | } else { |
1905 | keep = iwl_mvm_query_wakeup_reasons(mvm, vif); | |
78c9df66 | 1906 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
2021a89d LC |
1907 | if (keep) |
1908 | mvm->keep_vif = vif; | |
0c2ae049 | 1909 | #endif |
e0ede177 LC |
1910 | /* has unlocked the mutex, so skip that */ |
1911 | goto out_iterate; | |
2021a89d | 1912 | } |
8ca151b5 | 1913 | |
a500e469 LC |
1914 | err: |
1915 | iwl_mvm_free_nd(mvm); | |
8ca151b5 JB |
1916 | mutex_unlock(&mvm->mutex); |
1917 | ||
e0ede177 | 1918 | out_iterate: |
6d9d32b8 JB |
1919 | if (!test) |
1920 | ieee80211_iterate_active_interfaces_rtnl(mvm->hw, | |
1921 | IEEE80211_IFACE_ITER_NORMAL, | |
1922 | iwl_mvm_d3_disconnect_iter, keep ? vif : NULL); | |
8ca151b5 | 1923 | |
e0ede177 | 1924 | out: |
8ca151b5 JB |
1925 | /* return 1 to reconfigure the device */ |
1926 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
58629d9d | 1927 | set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status); |
dcfc7fb1 LC |
1928 | |
1929 | /* We always return 1, which causes mac80211 to do a reconfig | |
1930 | * with IEEE80211_RECONFIG_TYPE_RESTART. This type of | |
1931 | * reconfig calls iwl_mvm_restart_complete(), where we unref | |
1932 | * the IWL_MVM_REF_UCODE_DOWN, so we need to take the | |
1933 | * reference here. | |
1934 | */ | |
1935 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
8ca151b5 JB |
1936 | return 1; |
1937 | } | |
1938 | ||
2d42801b | 1939 | static int iwl_mvm_resume_d3(struct iwl_mvm *mvm) |
debff618 | 1940 | { |
2d42801b EP |
1941 | iwl_trans_resume(mvm->trans); |
1942 | ||
1943 | return __iwl_mvm_resume(mvm, false); | |
1944 | } | |
1945 | ||
1946 | static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm) | |
1947 | { | |
1948 | bool exit_now; | |
6dfb36c8 EP |
1949 | enum iwl_d3_status d3_status; |
1950 | ||
1951 | iwl_trans_d3_resume(mvm->trans, &d3_status, false); | |
2d42801b EP |
1952 | |
1953 | /* | |
1954 | * make sure to clear D0I3_DEFER_WAKEUP before | |
1955 | * calling iwl_trans_resume(), which might wait | |
1956 | * for d0i3 exit completion. | |
1957 | */ | |
1958 | mutex_lock(&mvm->d0i3_suspend_mutex); | |
1959 | __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1960 | exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, | |
1961 | &mvm->d0i3_suspend_flags); | |
1962 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1963 | if (exit_now) { | |
1964 | IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n"); | |
1965 | _iwl_mvm_exit_d0i3(mvm); | |
1966 | } | |
debff618 | 1967 | |
465921c8 EP |
1968 | iwl_trans_resume(mvm->trans); |
1969 | ||
2d42801b EP |
1970 | if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) { |
1971 | int ret = iwl_mvm_exit_d0i3(mvm->hw->priv); | |
6735943f | 1972 | |
2d42801b EP |
1973 | if (ret) |
1974 | return ret; | |
1975 | /* | |
1976 | * d0i3 exit will be deferred until reconfig_complete. | |
1977 | * make sure there we are out of d0i3. | |
1978 | */ | |
91742449 | 1979 | } |
2d42801b EP |
1980 | return 0; |
1981 | } | |
d15a747f | 1982 | |
2d42801b EP |
1983 | int iwl_mvm_resume(struct ieee80211_hw *hw) |
1984 | { | |
1985 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1986 | ||
1987 | /* 'any' trigger means d0i3 was used */ | |
1988 | if (hw->wiphy->wowlan_config->any) | |
1989 | return iwl_mvm_resume_d0i3(mvm); | |
1990 | else | |
1991 | return iwl_mvm_resume_d3(mvm); | |
debff618 JB |
1992 | } |
1993 | ||
8ca151b5 JB |
1994 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
1995 | { | |
1996 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1997 | ||
1998 | device_set_wakeup_enable(mvm->trans->dev, enabled); | |
1999 | } | |
debff618 JB |
2000 | |
2001 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2002 | static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) | |
2003 | { | |
2004 | struct iwl_mvm *mvm = inode->i_private; | |
2005 | int err; | |
2006 | ||
2007 | if (mvm->d3_test_active) | |
2008 | return -EBUSY; | |
2009 | ||
2010 | file->private_data = inode->i_private; | |
2011 | ||
2012 | ieee80211_stop_queues(mvm->hw); | |
2013 | synchronize_net(); | |
2014 | ||
2015 | /* start pseudo D3 */ | |
2016 | rtnl_lock(); | |
2017 | err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); | |
2018 | rtnl_unlock(); | |
2019 | if (err > 0) | |
2020 | err = -EINVAL; | |
2021 | if (err) { | |
2022 | ieee80211_wake_queues(mvm->hw); | |
2023 | return err; | |
2024 | } | |
2025 | mvm->d3_test_active = true; | |
78c9df66 | 2026 | mvm->keep_vif = NULL; |
debff618 JB |
2027 | return 0; |
2028 | } | |
2029 | ||
2030 | static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, | |
2031 | size_t count, loff_t *ppos) | |
2032 | { | |
2033 | struct iwl_mvm *mvm = file->private_data; | |
2034 | u32 pme_asserted; | |
2035 | ||
2036 | while (true) { | |
4ed80a86 EP |
2037 | /* read pme_ptr if available */ |
2038 | if (mvm->d3_test_pme_ptr) { | |
2039 | pme_asserted = iwl_trans_read_mem32(mvm->trans, | |
2040 | mvm->d3_test_pme_ptr); | |
2041 | if (pme_asserted) | |
2042 | break; | |
2043 | } | |
2044 | ||
debff618 JB |
2045 | if (msleep_interruptible(100)) |
2046 | break; | |
2047 | } | |
2048 | ||
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, | |
2053 | struct ieee80211_vif *vif) | |
2054 | { | |
78c9df66 EP |
2055 | /* skip the one we keep connection on */ |
2056 | if (_data == vif) | |
2057 | return; | |
2058 | ||
debff618 JB |
2059 | if (vif->type == NL80211_IFTYPE_STATION) |
2060 | ieee80211_connection_loss(vif); | |
2061 | } | |
2062 | ||
2063 | static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) | |
2064 | { | |
2065 | struct iwl_mvm *mvm = inode->i_private; | |
2066 | int remaining_time = 10; | |
2067 | ||
2068 | mvm->d3_test_active = false; | |
31ca09dd | 2069 | rtnl_lock(); |
debff618 | 2070 | __iwl_mvm_resume(mvm, true); |
31ca09dd | 2071 | rtnl_unlock(); |
debff618 JB |
2072 | iwl_abort_notification_waits(&mvm->notif_wait); |
2073 | ieee80211_restart_hw(mvm->hw); | |
2074 | ||
2075 | /* wait for restart and disconnect all interfaces */ | |
2076 | while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2077 | remaining_time > 0) { | |
2078 | remaining_time--; | |
2079 | msleep(1000); | |
2080 | } | |
2081 | ||
2082 | if (remaining_time == 0) | |
2083 | IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n"); | |
2084 | ||
2085 | ieee80211_iterate_active_interfaces_atomic( | |
2086 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
78c9df66 | 2087 | iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); |
debff618 JB |
2088 | |
2089 | ieee80211_wake_queues(mvm->hw); | |
2090 | ||
2091 | return 0; | |
2092 | } | |
2093 | ||
2094 | const struct file_operations iwl_dbgfs_d3_test_ops = { | |
2095 | .llseek = no_llseek, | |
2096 | .open = iwl_mvm_d3_test_open, | |
2097 | .read = iwl_mvm_d3_test_read, | |
2098 | .release = iwl_mvm_d3_test_release, | |
2099 | }; | |
2100 | #endif |