1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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.
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.
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,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
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
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.
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.
64 *****************************************************************************/
66 #include <linux/etherdevice.h>
69 #include <net/cfg80211.h>
72 #include <net/addrconf.h>
73 #include "iwl-modparams.h"
77 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
78 struct ieee80211_vif *vif,
79 struct cfg80211_gtk_rekey_data *data)
81 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
82 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
84 if (iwlwifi_mod_params.sw_crypto)
87 mutex_lock(&mvm->mutex);
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;
95 mutex_unlock(&mvm->mutex);
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)
103 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
104 struct inet6_ifaddr *ifa;
107 read_lock_bh(&idev->lock);
108 list_for_each_entry(ifa, &idev->addr_list, if_list) {
109 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
111 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
114 read_unlock_bh(&idev->lock);
116 mvmvif->num_target_ipv6_addrs = idx;
120 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
121 struct ieee80211_vif *vif, int idx)
123 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
125 mvmvif->tx_key_idx = idx;
128 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
132 for (i = 0; i < IWL_P1K_SIZE; i++)
133 out[i] = cpu_to_le16(p1k[i]);
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;
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,
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;
156 struct ieee80211_key_seq seq;
158 u16 p1k[IWL_P1K_SIZE];
161 mutex_lock(&mvm->mutex);
163 switch (key->cipher) {
164 case WLAN_CIPHER_SUITE_WEP40:
165 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
167 struct iwl_mvm_wep_key_cmd wep_key_cmd;
168 struct iwl_mvm_wep_key wep_key;
170 .wep_key_cmd.mac_id_n_color =
171 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
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,
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?
185 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
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;
193 /* others start at 1 */
195 wkc.wep_key.key_offset = data->wep_key_idx;
198 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
199 data->error = ret != 0;
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;
206 /* don't upload key again */
212 case WLAN_CIPHER_SUITE_AES_CMAC:
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.
221 case WLAN_CIPHER_SUITE_TKIP:
223 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
224 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
226 rx_p1ks = data->tkip->rx_uni;
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);
232 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
233 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
235 memcpy(data->tkip->mic_keys.tx,
236 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
239 rx_mic_key = data->tkip->mic_keys.rx_unicast;
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;
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.
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;
261 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
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);
269 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
272 data->use_tkip = true;
273 data->use_rsc_tsc = true;
275 case WLAN_CIPHER_SUITE_CCMP:
279 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
280 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
282 pn64 = atomic64_read(&key->tx_pn);
283 aes_tx_sc->pn = cpu_to_le64(pn64);
285 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
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.
292 for (i = 0; i < IWL_NUM_RSC; i++) {
293 u8 *pn = seq.ccmp.pn;
295 ieee80211_get_key_rx_seq(key, i, &seq);
296 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
303 data->use_rsc_tsc = true;
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.
311 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
313 mvm->ptk_ivlen = key->iv_len;
314 mvm->ptk_icvlen = key->icv_len;
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
323 mvm->gtk_ivlen = key->iv_len;
324 mvm->gtk_icvlen = key->icv_len;
327 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true);
328 data->error = ret != 0;
330 mutex_unlock(&mvm->mutex);
333 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
334 struct cfg80211_wowlan *wowlan)
336 struct iwl_wowlan_patterns_cmd *pattern_cmd;
337 struct iwl_host_cmd cmd = {
338 .id = WOWLAN_PATTERNS,
339 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
343 if (!wowlan->n_patterns)
346 cmd.len[0] = sizeof(*pattern_cmd) +
347 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern);
349 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
353 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
355 for (i = 0; i < wowlan->n_patterns; i++) {
356 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
358 memcpy(&pattern_cmd->patterns[i].mask,
359 wowlan->patterns[i].mask, mask_len);
360 memcpy(&pattern_cmd->patterns[i].pattern,
361 wowlan->patterns[i].pattern,
362 wowlan->patterns[i].pattern_len);
363 pattern_cmd->patterns[i].mask_size = mask_len;
364 pattern_cmd->patterns[i].pattern_size =
365 wowlan->patterns[i].pattern_len;
368 cmd.data[0] = pattern_cmd;
369 err = iwl_mvm_send_cmd(mvm, &cmd);
374 enum iwl_mvm_tcp_packet_type {
383 static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr)
385 __sum16 check = tcp_v4_check(len, saddr, daddr, 0);
386 return cpu_to_le16(be16_to_cpu((__force __be16)check));
389 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif,
390 struct cfg80211_wowlan_tcp *tcp,
391 void *_pkt, u8 *mask,
392 __le16 *pseudo_hdr_csum,
393 enum iwl_mvm_tcp_packet_type ptype)
400 } __packed *pkt = _pkt;
401 u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr);
404 pkt->eth.h_proto = cpu_to_be16(ETH_P_IP),
407 pkt->ip.protocol = IPPROTO_TCP;
411 case MVM_TCP_TX_DATA:
413 memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN);
414 memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN);
416 pkt->ip.saddr = tcp->src;
417 pkt->ip.daddr = tcp->dst;
418 pkt->tcp.source = cpu_to_be16(tcp->src_port);
419 pkt->tcp.dest = cpu_to_be16(tcp->dst_port);
420 /* overwritten for TX SYN later */
421 pkt->tcp.doff = sizeof(struct tcphdr) / 4;
422 pkt->tcp.window = cpu_to_be16(65000);
424 case MVM_TCP_RX_SYNACK:
426 case MVM_TCP_RX_WAKE:
427 memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN);
428 memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN);
429 pkt->ip.saddr = tcp->dst;
430 pkt->ip.daddr = tcp->src;
431 pkt->tcp.source = cpu_to_be16(tcp->dst_port);
432 pkt->tcp.dest = cpu_to_be16(tcp->src_port);
441 /* firmware assumes 8 option bytes - 8 NOPs for now */
442 memset(pkt->data, 0x01, 8);
444 pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4;
447 case MVM_TCP_TX_DATA:
448 ip_tot_len += tcp->payload_len;
449 memcpy(pkt->data, tcp->payload, tcp->payload_len);
457 case MVM_TCP_RX_SYNACK:
464 case MVM_TCP_RX_WAKE:
465 ip_tot_len += tcp->wake_len;
468 memcpy(pkt->data, tcp->wake_data, tcp->wake_len);
474 case MVM_TCP_TX_DATA:
476 pkt->ip.tot_len = cpu_to_be16(ip_tot_len);
477 pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl);
479 case MVM_TCP_RX_WAKE:
480 for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) {
481 u8 tmp = tcp->wake_mask[i];
482 mask[i + 6] |= tmp << 6;
483 if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8))
484 mask[i + 7] = tmp >> 2;
486 /* fall through for ethernet/IP/TCP headers mask */
487 case MVM_TCP_RX_SYNACK:
489 mask[0] = 0xff; /* match ethernet */
491 * match ethernet, ip.version, ip.ihl
492 * the ip.ihl half byte is really masked out by firmware
495 mask[2] = 0x80; /* match ip.protocol */
496 mask[3] = 0xfc; /* match ip.saddr, ip.daddr */
497 mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
498 mask[5] = 0x80; /* match tcp flags */
499 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
503 *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr),
504 pkt->ip.saddr, pkt->ip.daddr);
507 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
508 struct ieee80211_vif *vif,
509 struct cfg80211_wowlan_tcp *tcp)
511 struct iwl_wowlan_remote_wake_config *cfg;
512 struct iwl_host_cmd cmd = {
513 .id = REMOTE_WAKE_CONFIG_CMD,
514 .len = { sizeof(*cfg), },
515 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
522 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
527 cfg->max_syn_retries = 10;
528 cfg->max_data_retries = 10;
529 cfg->tcp_syn_ack_timeout = 1; /* seconds */
530 cfg->tcp_ack_timeout = 1; /* seconds */
533 iwl_mvm_build_tcp_packet(
534 vif, tcp, cfg->syn_tx.data, NULL,
535 &cfg->syn_tx.info.tcp_pseudo_header_checksum,
537 cfg->syn_tx.info.tcp_payload_length = 0;
540 iwl_mvm_build_tcp_packet(
541 vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
542 &cfg->synack_rx.info.tcp_pseudo_header_checksum,
544 cfg->synack_rx.info.tcp_payload_length = 0;
546 /* KEEPALIVE/ACK (TX) */
547 iwl_mvm_build_tcp_packet(
548 vif, tcp, cfg->keepalive_tx.data, NULL,
549 &cfg->keepalive_tx.info.tcp_pseudo_header_checksum,
551 cfg->keepalive_tx.info.tcp_payload_length =
552 cpu_to_le16(tcp->payload_len);
553 cfg->sequence_number_offset = tcp->payload_seq.offset;
554 /* length must be 0..4, the field is little endian */
555 cfg->sequence_number_length = tcp->payload_seq.len;
556 cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start);
557 cfg->keepalive_interval = cpu_to_le16(tcp->data_interval);
558 if (tcp->payload_tok.len) {
559 cfg->token_offset = tcp->payload_tok.offset;
560 cfg->token_length = tcp->payload_tok.len;
562 cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len);
563 memcpy(cfg->tokens, tcp->payload_tok.token_stream,
566 /* set tokens to max value to almost never run out */
567 cfg->num_tokens = cpu_to_le16(65535);
571 iwl_mvm_build_tcp_packet(
572 vif, tcp, cfg->keepalive_ack_rx.data,
573 cfg->keepalive_ack_rx.rx_mask,
574 &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum,
576 cfg->keepalive_ack_rx.info.tcp_payload_length = 0;
579 iwl_mvm_build_tcp_packet(
580 vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
581 &cfg->wake_rx.info.tcp_pseudo_header_checksum,
583 cfg->wake_rx.info.tcp_payload_length =
584 cpu_to_le16(tcp->wake_len);
587 iwl_mvm_build_tcp_packet(
588 vif, tcp, cfg->fin_tx.data, NULL,
589 &cfg->fin_tx.info.tcp_pseudo_header_checksum,
591 cfg->fin_tx.info.tcp_payload_length = 0;
593 ret = iwl_mvm_send_cmd(mvm, &cmd);
599 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
600 struct ieee80211_sta *ap_sta)
602 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
603 struct ieee80211_chanctx_conf *ctx;
604 u8 chains_static, chains_dynamic;
605 struct cfg80211_chan_def chandef;
607 struct iwl_binding_cmd binding_cmd = {};
608 struct iwl_time_quota_cmd quota_cmd = {};
611 /* add back the PHY */
612 if (WARN_ON(!mvmvif->phy_ctxt))
616 ctx = rcu_dereference(vif->chanctx_conf);
622 chains_static = ctx->rx_chains_static;
623 chains_dynamic = ctx->rx_chains_dynamic;
626 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
627 chains_static, chains_dynamic);
631 /* add back the MAC */
632 mvmvif->uploaded = false;
634 if (WARN_ON(!vif->bss_conf.assoc))
637 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
641 /* add back binding - XXX refactor? */
642 binding_cmd.id_and_color =
643 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
644 mvmvif->phy_ctxt->color));
645 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
647 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
648 mvmvif->phy_ctxt->color));
649 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
651 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
652 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
655 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
656 sizeof(binding_cmd), &binding_cmd,
659 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
664 IWL_ERR(mvm, "Binding command failed: %u\n", status);
668 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false);
671 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
673 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
678 quota_cmd.quotas[0].id_and_color =
679 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
680 mvmvif->phy_ctxt->color));
681 quota_cmd.quotas[0].quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
682 quota_cmd.quotas[0].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
684 for (i = 1; i < MAX_BINDINGS; i++)
685 quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID);
687 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
688 sizeof(quota_cmd), "a_cmd);
690 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
692 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
693 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
698 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
699 struct ieee80211_vif *vif)
701 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
702 struct iwl_nonqos_seq_query_cmd query_cmd = {
703 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
705 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
708 struct iwl_host_cmd cmd = {
709 .id = NON_QOS_TX_COUNTER_CMD,
710 .flags = CMD_WANT_SKB,
715 cmd.data[0] = &query_cmd;
716 cmd.len[0] = sizeof(query_cmd);
718 err = iwl_mvm_send_cmd(mvm, &cmd);
722 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
723 if (size < sizeof(__le16)) {
726 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
727 /* firmware returns next, not last-used seqno */
728 err = (u16) (err - 0x10);
735 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
737 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
738 struct iwl_nonqos_seq_query_cmd query_cmd = {
739 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
741 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
743 .value = cpu_to_le16(mvmvif->seqno),
746 /* return if called during restart, not resume from D3 */
747 if (!mvmvif->seqno_valid)
750 mvmvif->seqno_valid = false;
752 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
753 sizeof(query_cmd), &query_cmd))
754 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
757 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
759 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
761 iwl_trans_stop_device(mvm->trans);
764 * Set the HW restart bit -- this is mostly true as we're
765 * going to load new firmware and reprogram that, though
766 * the reprogramming is going to be manual to avoid adding
767 * all the MACs that aren't support.
768 * We don't have to clear up everything though because the
769 * reprogramming is manual. When we resume, we'll actually
770 * go through a proper restart sequence again to switch
771 * back to the runtime firmware image.
773 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
775 /* We reprogram keys and shouldn't allocate new key indices */
776 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
783 return iwl_mvm_load_d3_fw(mvm);
787 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
788 struct cfg80211_wowlan *wowlan,
789 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
790 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
791 struct ieee80211_sta *ap_sta)
794 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
796 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
798 wowlan_config_cmd->is_11n_connection =
799 ap_sta->ht_cap.ht_supported;
801 /* Query the last used seqno and set it */
802 ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
806 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
808 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
810 if (wowlan->disconnect)
811 wowlan_config_cmd->wakeup_filter |=
812 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
813 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
814 if (wowlan->magic_pkt)
815 wowlan_config_cmd->wakeup_filter |=
816 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
817 if (wowlan->gtk_rekey_failure)
818 wowlan_config_cmd->wakeup_filter |=
819 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
820 if (wowlan->eap_identity_req)
821 wowlan_config_cmd->wakeup_filter |=
822 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
823 if (wowlan->four_way_handshake)
824 wowlan_config_cmd->wakeup_filter |=
825 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
826 if (wowlan->n_patterns)
827 wowlan_config_cmd->wakeup_filter |=
828 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
830 if (wowlan->rfkill_release)
831 wowlan_config_cmd->wakeup_filter |=
832 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
836 * Set the "link change" (really "link lost") flag as well
837 * since that implies losing the TCP connection.
839 wowlan_config_cmd->wakeup_filter |=
840 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
841 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
842 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
843 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
850 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
851 struct cfg80211_wowlan *wowlan,
852 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
853 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
854 struct ieee80211_sta *ap_sta)
856 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
857 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
858 struct wowlan_key_data key_data = {
859 .use_rsc_tsc = false,
865 ret = iwl_mvm_switch_to_d3(mvm);
869 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
873 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
874 if (!key_data.rsc_tsc)
877 if (!iwlwifi_mod_params.sw_crypto) {
879 * This needs to be unlocked due to lock ordering
880 * constraints. Since we're in the suspend path
881 * that isn't really a problem though.
883 mutex_unlock(&mvm->mutex);
884 ieee80211_iter_keys(mvm->hw, vif,
885 iwl_mvm_wowlan_program_keys,
887 mutex_lock(&mvm->mutex);
888 if (key_data.error) {
893 if (key_data.use_rsc_tsc) {
894 struct iwl_host_cmd rsc_tsc_cmd = {
895 .id = WOWLAN_TSC_RSC_PARAM,
896 .data[0] = key_data.rsc_tsc,
897 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
898 .len[0] = sizeof(*key_data.rsc_tsc),
901 ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd);
906 if (key_data.use_tkip) {
907 ret = iwl_mvm_send_cmd_pdu(mvm,
915 if (mvmvif->rekey_data.valid) {
916 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
917 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
919 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
920 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
922 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
923 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
925 ret = iwl_mvm_send_cmd_pdu(mvm,
926 WOWLAN_KEK_KCK_MATERIAL, 0,
934 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
935 sizeof(*wowlan_config_cmd),
940 ret = iwl_mvm_send_patterns(mvm, wowlan);
944 ret = iwl_mvm_send_proto_offload(mvm, vif, false, 0);
948 ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp);
951 kfree(key_data.rsc_tsc);
956 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
957 struct cfg80211_wowlan *wowlan,
958 struct cfg80211_sched_scan_request *nd_config,
959 struct ieee80211_vif *vif)
961 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
964 ret = iwl_mvm_switch_to_d3(mvm);
968 /* rfkill release can be either for wowlan or netdetect */
969 if (wowlan->rfkill_release)
970 wowlan_config_cmd.wakeup_filter |=
971 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
973 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
974 sizeof(wowlan_config_cmd),
979 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
980 IWL_MVM_SCAN_NETDETECT);
984 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
987 /* save the sched scan matchsets... */
988 if (nd_config->n_match_sets) {
989 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
990 sizeof(*nd_config->match_sets) *
991 nd_config->n_match_sets,
993 if (mvm->nd_match_sets)
994 mvm->n_nd_match_sets = nd_config->n_match_sets;
997 /* ...and the sched scan channels for later reporting */
998 mvm->nd_channels = kmemdup(nd_config->channels,
999 sizeof(*nd_config->channels) *
1000 nd_config->n_channels,
1002 if (mvm->nd_channels)
1003 mvm->n_nd_channels = nd_config->n_channels;
1008 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1010 kfree(mvm->nd_match_sets);
1011 mvm->nd_match_sets = NULL;
1012 mvm->n_nd_match_sets = 0;
1013 kfree(mvm->nd_channels);
1014 mvm->nd_channels = NULL;
1015 mvm->n_nd_channels = 0;
1018 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1019 struct cfg80211_wowlan *wowlan,
1022 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1023 struct ieee80211_vif *vif = NULL;
1024 struct iwl_mvm_vif *mvmvif = NULL;
1025 struct ieee80211_sta *ap_sta = NULL;
1026 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1028 * Program the minimum sleep time to 10 seconds, as many
1029 * platforms have issues processing a wakeup signal while
1030 * still being in the process of suspending.
1032 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1034 struct iwl_host_cmd d3_cfg_cmd = {
1035 .id = D3_CONFIG_CMD,
1036 .flags = CMD_WANT_SKB,
1037 .data[0] = &d3_cfg_cmd_data,
1038 .len[0] = sizeof(d3_cfg_cmd_data),
1041 int len __maybe_unused;
1045 * mac80211 shouldn't get here, but for D3 test
1046 * it doesn't warrant a warning
1052 mutex_lock(&mvm->mutex);
1054 vif = iwl_mvm_get_bss_vif(mvm);
1055 if (IS_ERR_OR_NULL(vif)) {
1060 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1062 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) {
1063 /* if we're not associated, this must be netdetect */
1064 if (!wowlan->nd_config && !mvm->nd_config) {
1069 ret = iwl_mvm_netdetect_config(
1070 mvm, wowlan, wowlan->nd_config ?: mvm->nd_config, vif);
1074 mvm->net_detect = true;
1076 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1078 ap_sta = rcu_dereference_protected(
1079 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1080 lockdep_is_held(&mvm->mutex));
1081 if (IS_ERR_OR_NULL(ap_sta)) {
1086 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1087 vif, mvmvif, ap_sta);
1090 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1091 vif, mvmvif, ap_sta);
1095 mvm->net_detect = false;
1098 ret = iwl_mvm_power_update_device(mvm);
1102 ret = iwl_mvm_power_update_mac(mvm);
1106 #ifdef CONFIG_IWLWIFI_DEBUGFS
1107 if (mvm->d3_wake_sysassert)
1108 d3_cfg_cmd_data.wakeup_flags |=
1109 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1112 /* must be last -- this switches firmware state */
1113 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1116 #ifdef CONFIG_IWLWIFI_DEBUGFS
1117 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1118 if (len >= sizeof(u32)) {
1119 mvm->d3_test_pme_ptr =
1120 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1123 iwl_free_resp(&d3_cfg_cmd);
1125 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1127 iwl_trans_d3_suspend(mvm->trans, test);
1130 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1131 ieee80211_restart_hw(mvm->hw);
1132 iwl_mvm_free_nd(mvm);
1135 mutex_unlock(&mvm->mutex);
1140 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
1142 struct iwl_notification_wait wait_d3;
1143 static const u16 d3_notif[] = { D3_CONFIG_CMD };
1146 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
1147 d3_notif, ARRAY_SIZE(d3_notif),
1150 ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
1154 ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
1159 iwl_remove_notification(&mvm->notif_wait, &wait_d3);
1163 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1168 /* make sure the d0i3 exit work is not pending */
1169 flush_work(&mvm->d0i3_exit_work);
1171 ret = iwl_trans_suspend(mvm->trans);
1175 mvm->trans->wowlan_d0i3 = wowlan->any;
1176 if (mvm->trans->wowlan_d0i3) {
1177 /* 'any' trigger means d0i3 usage */
1178 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) {
1179 ret = iwl_mvm_enter_d0i3_sync(mvm);
1185 mutex_lock(&mvm->d0i3_suspend_mutex);
1186 __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1187 mutex_unlock(&mvm->d0i3_suspend_mutex);
1189 iwl_trans_d3_suspend(mvm->trans, false);
1194 return __iwl_mvm_suspend(hw, wowlan, false);
1197 /* converted data from the different status responses */
1198 struct iwl_wowlan_status_data {
1202 u32 wake_packet_length;
1203 u32 wake_packet_bufsize;
1204 const u8 *wake_packet;
1207 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1208 struct ieee80211_vif *vif,
1209 struct iwl_wowlan_status_data *status)
1211 struct sk_buff *pkt = NULL;
1212 struct cfg80211_wowlan_wakeup wakeup = {
1215 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1216 u32 reasons = status->wakeup_reasons;
1218 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1219 wakeup_report = NULL;
1223 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1224 wakeup.magic_pkt = true;
1226 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1227 wakeup.pattern_idx =
1228 status->pattern_number;
1230 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1231 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1232 wakeup.disconnect = true;
1234 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1235 wakeup.gtk_rekey_failure = true;
1237 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1238 wakeup.rfkill_release = true;
1240 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1241 wakeup.eap_identity_req = true;
1243 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1244 wakeup.four_way_handshake = true;
1246 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1247 wakeup.tcp_connlost = true;
1249 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1250 wakeup.tcp_nomoretokens = true;
1252 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1253 wakeup.tcp_match = true;
1255 if (status->wake_packet_bufsize) {
1256 int pktsize = status->wake_packet_bufsize;
1257 int pktlen = status->wake_packet_length;
1258 const u8 *pktdata = status->wake_packet;
1259 struct ieee80211_hdr *hdr = (void *)pktdata;
1260 int truncated = pktlen - pktsize;
1262 /* this would be a firmware bug */
1263 if (WARN_ON_ONCE(truncated < 0))
1266 if (ieee80211_is_data(hdr->frame_control)) {
1267 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1268 int ivlen = 0, icvlen = 4; /* also FCS */
1270 pkt = alloc_skb(pktsize, GFP_KERNEL);
1274 memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen);
1278 if (ieee80211_has_protected(hdr->frame_control)) {
1280 * This is unlocked and using gtk_i(c)vlen,
1281 * but since everything is under RTNL still
1282 * that's not really a problem - changing
1283 * it would be difficult.
1285 if (is_multicast_ether_addr(hdr->addr1)) {
1286 ivlen = mvm->gtk_ivlen;
1287 icvlen += mvm->gtk_icvlen;
1289 ivlen = mvm->ptk_ivlen;
1290 icvlen += mvm->ptk_icvlen;
1294 /* if truncated, FCS/ICV is (partially) gone */
1295 if (truncated >= icvlen) {
1297 truncated -= icvlen;
1299 icvlen -= truncated;
1303 pktsize -= ivlen + icvlen;
1306 memcpy(skb_put(pkt, pktsize), pktdata, pktsize);
1308 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1310 wakeup.packet = pkt->data;
1311 wakeup.packet_present_len = pkt->len;
1312 wakeup.packet_len = pkt->len - truncated;
1313 wakeup.packet_80211 = false;
1317 if (truncated >= 4) {
1321 fcslen -= truncated;
1325 wakeup.packet = status->wake_packet;
1326 wakeup.packet_present_len = pktsize;
1327 wakeup.packet_len = pktlen - truncated;
1328 wakeup.packet_80211 = true;
1333 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1337 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1338 struct ieee80211_key_seq *seq)
1342 pn = le64_to_cpu(sc->pn);
1343 seq->ccmp.pn[0] = pn >> 40;
1344 seq->ccmp.pn[1] = pn >> 32;
1345 seq->ccmp.pn[2] = pn >> 24;
1346 seq->ccmp.pn[3] = pn >> 16;
1347 seq->ccmp.pn[4] = pn >> 8;
1348 seq->ccmp.pn[5] = pn;
1351 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1352 struct ieee80211_key_seq *seq)
1354 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1355 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1358 static void iwl_mvm_set_aes_rx_seq(struct aes_sc *scs,
1359 struct ieee80211_key_conf *key)
1363 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1365 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1366 struct ieee80211_key_seq seq = {};
1368 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1369 ieee80211_set_key_rx_seq(key, tid, &seq);
1373 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1374 struct ieee80211_key_conf *key)
1378 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1380 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1381 struct ieee80211_key_seq seq = {};
1383 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1384 ieee80211_set_key_rx_seq(key, tid, &seq);
1388 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1389 struct iwl_wowlan_status *status)
1391 union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc;
1393 switch (key->cipher) {
1394 case WLAN_CIPHER_SUITE_CCMP:
1395 iwl_mvm_set_aes_rx_seq(rsc->aes.multicast_rsc, key);
1397 case WLAN_CIPHER_SUITE_TKIP:
1398 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1405 struct iwl_mvm_d3_gtk_iter_data {
1406 struct iwl_wowlan_status *status;
1409 bool find_phase, unhandled_cipher;
1413 static void iwl_mvm_d3_update_gtks(struct ieee80211_hw *hw,
1414 struct ieee80211_vif *vif,
1415 struct ieee80211_sta *sta,
1416 struct ieee80211_key_conf *key,
1419 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1421 if (data->unhandled_cipher)
1424 switch (key->cipher) {
1425 case WLAN_CIPHER_SUITE_WEP40:
1426 case WLAN_CIPHER_SUITE_WEP104:
1427 /* ignore WEP completely, nothing to do */
1429 case WLAN_CIPHER_SUITE_CCMP:
1430 case WLAN_CIPHER_SUITE_TKIP:
1431 /* we support these */
1434 /* everything else (even CMAC for MFP) - disconnect from AP */
1435 data->unhandled_cipher = true;
1442 * pairwise key - update sequence counters only;
1443 * note that this assumes no TDLS sessions are active
1446 struct ieee80211_key_seq seq = {};
1447 union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc;
1449 if (data->find_phase)
1452 switch (key->cipher) {
1453 case WLAN_CIPHER_SUITE_CCMP:
1454 iwl_mvm_set_aes_rx_seq(sc->aes.unicast_rsc, key);
1455 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1457 case WLAN_CIPHER_SUITE_TKIP:
1458 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1459 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1460 ieee80211_set_key_tx_seq(key, &seq);
1464 /* that's it for this key */
1468 if (data->find_phase) {
1469 data->last_gtk = key;
1470 data->cipher = key->cipher;
1474 if (data->status->num_of_gtk_rekeys)
1475 ieee80211_remove_key(key);
1476 else if (data->last_gtk == key)
1477 iwl_mvm_set_key_rx_seq(key, data->status);
1480 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1481 struct ieee80211_vif *vif,
1482 struct iwl_wowlan_status *status)
1484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1485 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1488 u32 disconnection_reasons =
1489 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1490 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1492 if (!status || !vif->bss_conf.bssid)
1495 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1498 /* find last GTK that we used initially, if any */
1499 gtkdata.find_phase = true;
1500 ieee80211_iter_keys(mvm->hw, vif,
1501 iwl_mvm_d3_update_gtks, >kdata);
1502 /* not trying to keep connections with MFP/unhandled ciphers */
1503 if (gtkdata.unhandled_cipher)
1505 if (!gtkdata.num_keys)
1507 if (!gtkdata.last_gtk)
1511 * invalidate all other GTKs that might still exist and update
1512 * the one that we used
1514 gtkdata.find_phase = false;
1515 ieee80211_iter_keys(mvm->hw, vif,
1516 iwl_mvm_d3_update_gtks, >kdata);
1518 if (status->num_of_gtk_rekeys) {
1519 struct ieee80211_key_conf *key;
1521 struct ieee80211_key_conf conf;
1524 .conf.cipher = gtkdata.cipher,
1525 .conf.keyidx = status->gtk.key_index,
1528 switch (gtkdata.cipher) {
1529 case WLAN_CIPHER_SUITE_CCMP:
1530 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1531 memcpy(conf.conf.key, status->gtk.decrypt_key,
1534 case WLAN_CIPHER_SUITE_TKIP:
1535 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1536 memcpy(conf.conf.key, status->gtk.decrypt_key, 16);
1537 /* leave TX MIC key zeroed, we don't use it anyway */
1538 memcpy(conf.conf.key +
1539 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1540 status->gtk.tkip_mic_key, 8);
1544 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1547 iwl_mvm_set_key_rx_seq(key, status);
1550 if (status->num_of_gtk_rekeys) {
1552 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1553 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1554 (void *)&replay_ctr, GFP_KERNEL);
1558 mvmvif->seqno_valid = true;
1559 /* +0x10 because the set API expects next-to-use, not last-used */
1560 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1565 static struct iwl_wowlan_status *
1566 iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1568 u32 base = mvm->error_event_table;
1569 struct error_table_start {
1570 /* cf. struct iwl_error_event_table */
1574 struct iwl_host_cmd cmd = {
1575 .id = WOWLAN_GET_STATUSES,
1576 .flags = CMD_WANT_SKB,
1578 struct iwl_wowlan_status *status, *fw_status;
1579 int ret, len, status_size;
1581 iwl_trans_read_mem_bytes(mvm->trans, base,
1582 &err_info, sizeof(err_info));
1584 if (err_info.valid) {
1585 IWL_INFO(mvm, "error table is valid (%d) with error (%d)\n",
1586 err_info.valid, err_info.error_id);
1587 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
1588 struct cfg80211_wowlan_wakeup wakeup = {
1589 .rfkill_release = true,
1591 ieee80211_report_wowlan_wakeup(vif, &wakeup,
1594 return ERR_PTR(-EIO);
1597 /* only for tracing for now */
1598 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL);
1600 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1602 ret = iwl_mvm_send_cmd(mvm, &cmd);
1604 IWL_ERR(mvm, "failed to query status (%d)\n", ret);
1605 return ERR_PTR(ret);
1608 /* RF-kill already asserted again... */
1609 if (!cmd.resp_pkt) {
1610 fw_status = ERR_PTR(-ERFKILL);
1614 status_size = sizeof(*fw_status);
1616 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1617 if (len < status_size) {
1618 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1619 fw_status = ERR_PTR(-EIO);
1623 status = (void *)cmd.resp_pkt->data;
1624 if (len != (status_size +
1625 ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4))) {
1626 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1627 fw_status = ERR_PTR(-EIO);
1631 fw_status = kmemdup(status, len, GFP_KERNEL);
1634 iwl_free_resp(&cmd);
1638 /* releases the MVM mutex */
1639 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1640 struct ieee80211_vif *vif)
1642 struct iwl_wowlan_status_data status;
1643 struct iwl_wowlan_status *fw_status;
1646 struct ieee80211_sta *ap_sta;
1647 struct iwl_mvm_sta *mvm_ap_sta;
1649 fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
1650 if (IS_ERR_OR_NULL(fw_status))
1653 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1654 for (i = 0; i < 8; i++)
1655 status.qos_seq_ctr[i] =
1656 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1657 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1658 status.wake_packet_length =
1659 le32_to_cpu(fw_status->wake_packet_length);
1660 status.wake_packet_bufsize =
1661 le32_to_cpu(fw_status->wake_packet_bufsize);
1662 status.wake_packet = fw_status->wake_packet;
1664 /* still at hard-coded place 0 for D3 image */
1665 ap_sta = rcu_dereference_protected(
1666 mvm->fw_id_to_mac_id[0],
1667 lockdep_is_held(&mvm->mutex));
1668 if (IS_ERR_OR_NULL(ap_sta))
1671 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1672 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1673 u16 seq = status.qos_seq_ctr[i];
1674 /* firmware stores last-used value, we store next value */
1676 mvm_ap_sta->tid_data[i].seq_number = seq;
1679 /* now we have all the data we need, unlock to avoid mac80211 issues */
1680 mutex_unlock(&mvm->mutex);
1682 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1684 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
1692 mutex_unlock(&mvm->mutex);
1696 struct iwl_mvm_nd_query_results {
1697 u32 matched_profiles;
1698 struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
1702 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1703 struct iwl_mvm_nd_query_results *results)
1705 struct iwl_scan_offload_profiles_query *query;
1706 struct iwl_host_cmd cmd = {
1707 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1708 .flags = CMD_WANT_SKB,
1712 ret = iwl_mvm_send_cmd(mvm, &cmd);
1714 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
1718 /* RF-kill already asserted again... */
1719 if (!cmd.resp_pkt) {
1724 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1725 if (len < sizeof(*query)) {
1726 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
1731 query = (void *)cmd.resp_pkt->data;
1733 results->matched_profiles = le32_to_cpu(query->matched_profiles);
1734 memcpy(results->matches, query->matches, sizeof(results->matches));
1736 #ifdef CONFIG_IWLWIFI_DEBUGFS
1737 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1741 iwl_free_resp(&cmd);
1745 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1746 struct ieee80211_vif *vif)
1748 struct cfg80211_wowlan_nd_info *net_detect = NULL;
1749 struct cfg80211_wowlan_wakeup wakeup = {
1752 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1753 struct iwl_mvm_nd_query_results query;
1754 struct iwl_wowlan_status *fw_status;
1755 unsigned long matched_profiles;
1757 int i, j, n_matches, ret;
1759 fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
1760 if (!IS_ERR_OR_NULL(fw_status)) {
1761 reasons = le32_to_cpu(fw_status->wakeup_reasons);
1765 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1766 wakeup.rfkill_release = true;
1768 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1771 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1772 if (ret || !query.matched_profiles) {
1773 wakeup_report = NULL;
1777 matched_profiles = query.matched_profiles;
1778 if (mvm->n_nd_match_sets) {
1779 n_matches = hweight_long(matched_profiles);
1781 IWL_ERR(mvm, "no net detect match information available\n");
1785 net_detect = kzalloc(sizeof(*net_detect) +
1786 (n_matches * sizeof(net_detect->matches[0])),
1788 if (!net_detect || !n_matches)
1791 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1792 struct iwl_scan_offload_profile_match *fw_match;
1793 struct cfg80211_wowlan_nd_match *match;
1794 int idx, n_channels = 0;
1796 fw_match = &query.matches[i];
1798 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++)
1799 n_channels += hweight8(fw_match->matching_channels[j]);
1801 match = kzalloc(sizeof(*match) +
1802 (n_channels * sizeof(*match->channels)),
1807 net_detect->matches[net_detect->n_matches++] = match;
1809 /* We inverted the order of the SSIDs in the scan
1810 * request, so invert the index here.
1812 idx = mvm->n_nd_match_sets - i - 1;
1813 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
1814 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
1815 match->ssid.ssid_len);
1817 if (mvm->n_nd_channels < n_channels)
1820 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++)
1821 if (fw_match->matching_channels[j / 8] & (BIT(j % 8)))
1822 match->channels[match->n_channels++] =
1823 mvm->nd_channels[j]->center_freq;
1827 wakeup.net_detect = net_detect;
1829 iwl_mvm_free_nd(mvm);
1831 mutex_unlock(&mvm->mutex);
1832 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1835 for (i = 0; i < net_detect->n_matches; i++)
1836 kfree(net_detect->matches[i]);
1841 static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
1843 #ifdef CONFIG_IWLWIFI_DEBUGFS
1844 const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1845 u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1846 u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1848 if (!mvm->store_d3_resume_sram)
1851 if (!mvm->d3_resume_sram) {
1852 mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
1853 if (!mvm->d3_resume_sram)
1857 iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
1861 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
1862 struct ieee80211_vif *vif)
1864 /* skip the one we keep connection on */
1868 if (vif->type == NL80211_IFTYPE_STATION)
1869 ieee80211_resume_disconnect(vif);
1872 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
1874 struct ieee80211_vif *vif = NULL;
1876 enum iwl_d3_status d3_status;
1879 mutex_lock(&mvm->mutex);
1881 /* get the BSS vif pointer again */
1882 vif = iwl_mvm_get_bss_vif(mvm);
1883 if (IS_ERR_OR_NULL(vif))
1886 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test);
1890 if (d3_status != IWL_D3_STATUS_ALIVE) {
1891 IWL_INFO(mvm, "Device was reset during suspend\n");
1895 /* query SRAM first in case we want event logging */
1896 iwl_mvm_read_d3_sram(mvm);
1899 * Query the current location and source from the D3 firmware so we
1900 * can play it back when we re-intiailize the D0 firmware
1902 iwl_mvm_update_changed_regdom(mvm);
1904 if (mvm->net_detect) {
1905 iwl_mvm_query_netdetect_reasons(mvm, vif);
1906 /* has unlocked the mutex, so skip that */
1909 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
1910 #ifdef CONFIG_IWLWIFI_DEBUGFS
1912 mvm->keep_vif = vif;
1914 /* has unlocked the mutex, so skip that */
1919 iwl_mvm_free_nd(mvm);
1920 mutex_unlock(&mvm->mutex);
1924 ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
1925 IEEE80211_IFACE_ITER_NORMAL,
1926 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
1929 /* return 1 to reconfigure the device */
1930 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1931 set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status);
1933 /* We always return 1, which causes mac80211 to do a reconfig
1934 * with IEEE80211_RECONFIG_TYPE_RESTART. This type of
1935 * reconfig calls iwl_mvm_restart_complete(), where we unref
1936 * the IWL_MVM_REF_UCODE_DOWN, so we need to take the
1939 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1943 static int iwl_mvm_resume_d3(struct iwl_mvm *mvm)
1945 iwl_trans_resume(mvm->trans);
1947 return __iwl_mvm_resume(mvm, false);
1950 static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm)
1953 enum iwl_d3_status d3_status;
1955 iwl_trans_d3_resume(mvm->trans, &d3_status, false);
1958 * make sure to clear D0I3_DEFER_WAKEUP before
1959 * calling iwl_trans_resume(), which might wait
1960 * for d0i3 exit completion.
1962 mutex_lock(&mvm->d0i3_suspend_mutex);
1963 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1964 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1965 &mvm->d0i3_suspend_flags);
1966 mutex_unlock(&mvm->d0i3_suspend_mutex);
1968 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1969 _iwl_mvm_exit_d0i3(mvm);
1972 iwl_trans_resume(mvm->trans);
1974 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) {
1975 int ret = iwl_mvm_exit_d0i3(mvm->hw->priv);
1980 * d0i3 exit will be deferred until reconfig_complete.
1981 * make sure there we are out of d0i3.
1987 int iwl_mvm_resume(struct ieee80211_hw *hw)
1989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1991 /* 'any' trigger means d0i3 was used */
1992 if (hw->wiphy->wowlan_config->any)
1993 return iwl_mvm_resume_d0i3(mvm);
1995 return iwl_mvm_resume_d3(mvm);
1998 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2000 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2002 device_set_wakeup_enable(mvm->trans->dev, enabled);
2005 #ifdef CONFIG_IWLWIFI_DEBUGFS
2006 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2008 struct iwl_mvm *mvm = inode->i_private;
2011 if (mvm->d3_test_active)
2014 file->private_data = inode->i_private;
2016 ieee80211_stop_queues(mvm->hw);
2019 /* start pseudo D3 */
2021 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2026 ieee80211_wake_queues(mvm->hw);
2029 mvm->d3_test_active = true;
2030 mvm->keep_vif = NULL;
2034 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2035 size_t count, loff_t *ppos)
2037 struct iwl_mvm *mvm = file->private_data;
2041 /* read pme_ptr if available */
2042 if (mvm->d3_test_pme_ptr) {
2043 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2044 mvm->d3_test_pme_ptr);
2049 if (msleep_interruptible(100))
2056 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2057 struct ieee80211_vif *vif)
2059 /* skip the one we keep connection on */
2063 if (vif->type == NL80211_IFTYPE_STATION)
2064 ieee80211_connection_loss(vif);
2067 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2069 struct iwl_mvm *mvm = inode->i_private;
2070 int remaining_time = 10;
2072 mvm->d3_test_active = false;
2074 __iwl_mvm_resume(mvm, true);
2076 iwl_abort_notification_waits(&mvm->notif_wait);
2077 ieee80211_restart_hw(mvm->hw);
2079 /* wait for restart and disconnect all interfaces */
2080 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2081 remaining_time > 0) {
2086 if (remaining_time == 0)
2087 IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n");
2089 ieee80211_iterate_active_interfaces_atomic(
2090 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2091 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2093 ieee80211_wake_queues(mvm->hw);
2098 const struct file_operations iwl_dbgfs_d3_test_ops = {
2099 .llseek = no_llseek,
2100 .open = iwl_mvm_d3_test_open,
2101 .read = iwl_mvm_d3_test_read,
2102 .release = iwl_mvm_d3_test_release,