1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3 * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
7 #include <linux/etherdevice.h>
10 #include <net/cfg80211.h>
13 #include <net/addrconf.h>
14 #include "iwl-modparams.h"
19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
20 struct ieee80211_vif *vif,
21 struct cfg80211_gtk_rekey_data *data)
23 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
24 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
26 mutex_lock(&mvm->mutex);
28 mvmvif->rekey_data.kek_len = data->kek_len;
29 mvmvif->rekey_data.kck_len = data->kck_len;
30 memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len);
31 memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len);
32 mvmvif->rekey_data.akm = data->akm & 0xFF;
33 mvmvif->rekey_data.replay_ctr =
34 cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr));
35 mvmvif->rekey_data.valid = true;
37 mutex_unlock(&mvm->mutex);
40 #if IS_ENABLED(CONFIG_IPV6)
41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
42 struct ieee80211_vif *vif,
43 struct inet6_dev *idev)
45 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
46 struct inet6_ifaddr *ifa;
49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
51 read_lock_bh(&idev->lock);
52 list_for_each_entry(ifa, &idev->addr_list, if_list) {
53 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
54 if (ifa->flags & IFA_F_TENTATIVE)
55 __set_bit(idx, mvmvif->tentative_addrs);
57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
60 read_unlock_bh(&idev->lock);
62 mvmvif->num_target_ipv6_addrs = idx;
66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
67 struct ieee80211_vif *vif, int idx)
69 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
71 mvmvif->tx_key_idx = idx;
74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
78 for (i = 0; i < IWL_P1K_SIZE; i++)
79 out[i] = cpu_to_le16(p1k[i]);
82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
83 struct iwl_mvm_key_pn *ptk_pn,
84 struct ieee80211_key_seq *seq,
87 const u8 *ret = seq->ccmp.pn;
90 /* get the PN from mac80211, used on the default queue */
91 ieee80211_get_key_rx_seq(key, tid, seq);
93 /* and use the internal data for the other queues */
94 for (i = 1; i < queues; i++) {
95 const u8 *tmp = ptk_pn->q[i].pn[tid];
97 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
104 struct wowlan_key_reprogram_data {
109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
110 struct ieee80211_vif *vif,
111 struct ieee80211_sta *sta,
112 struct ieee80211_key_conf *key,
115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
117 struct wowlan_key_reprogram_data *data = _data;
120 switch (key->cipher) {
121 case WLAN_CIPHER_SUITE_WEP40:
122 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
124 struct iwl_mvm_wep_key_cmd wep_key_cmd;
125 struct iwl_mvm_wep_key wep_key;
127 .wep_key_cmd.mac_id_n_color =
128 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
130 .wep_key_cmd.num_keys = 1,
131 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
132 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
133 .wep_key.key_index = key->keyidx,
134 .wep_key.key_size = key->keylen,
138 * This will fail -- the key functions don't set support
139 * pairwise WEP keys. However, that's better than silently
140 * failing WoWLAN. Or maybe not?
142 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
145 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
146 if (key->keyidx == mvmvif->tx_key_idx) {
147 /* TX key must be at offset 0 */
148 wkc.wep_key.key_offset = 0;
150 /* others start at 1 */
152 wkc.wep_key.key_offset = data->wep_key_idx;
155 mutex_lock(&mvm->mutex);
156 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
157 data->error = ret != 0;
159 mvm->ptk_ivlen = key->iv_len;
160 mvm->ptk_icvlen = key->icv_len;
161 mvm->gtk_ivlen = key->iv_len;
162 mvm->gtk_icvlen = key->icv_len;
163 mutex_unlock(&mvm->mutex);
165 /* don't upload key again */
171 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
174 case WLAN_CIPHER_SUITE_AES_CMAC:
176 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
177 * but we also shouldn't abort suspend due to that. It does have
178 * support for the IGTK key renewal, but doesn't really use the
179 * IGTK for anything. This means we could spuriously wake up or
180 * be deauthenticated, but that was considered acceptable.
183 case WLAN_CIPHER_SUITE_TKIP:
184 case WLAN_CIPHER_SUITE_CCMP:
185 case WLAN_CIPHER_SUITE_GCMP:
186 case WLAN_CIPHER_SUITE_GCMP_256:
190 mutex_lock(&mvm->mutex);
192 * The D3 firmware hardcodes the key offset 0 as the key it
193 * uses to transmit packets to the AP, i.e. the PTK.
195 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
196 mvm->ptk_ivlen = key->iv_len;
197 mvm->ptk_icvlen = key->icv_len;
198 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
201 * firmware only supports TSC/RSC for a single key,
202 * so if there are multiple keep overwriting them
203 * with new ones -- this relies on mac80211 doing
206 mvm->gtk_ivlen = key->iv_len;
207 mvm->gtk_icvlen = key->icv_len;
208 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
210 mutex_unlock(&mvm->mutex);
211 data->error = ret != 0;
214 struct wowlan_key_rsc_tsc_data {
215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
219 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw,
220 struct ieee80211_vif *vif,
221 struct ieee80211_sta *sta,
222 struct ieee80211_key_conf *key,
225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
226 struct wowlan_key_rsc_tsc_data *data = _data;
227 struct aes_sc *aes_sc;
228 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
229 struct ieee80211_key_seq seq;
232 switch (key->cipher) {
235 case WLAN_CIPHER_SUITE_TKIP:
240 data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
242 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
244 pn64 = atomic64_read(&key->tx_pn);
245 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
246 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
249 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
253 * For non-QoS this relies on the fact that both the uCode and
254 * mac80211 use TID 0 (as they need to to avoid replay attacks)
255 * for checking the IV in the frames.
257 for (i = 0; i < IWL_NUM_RSC; i++) {
258 ieee80211_get_key_rx_seq(key, i, &seq);
259 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
260 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
263 data->have_rsc_tsc = true;
265 case WLAN_CIPHER_SUITE_CCMP:
266 case WLAN_CIPHER_SUITE_GCMP:
267 case WLAN_CIPHER_SUITE_GCMP_256:
269 struct aes_sc *aes_tx_sc;
273 data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
275 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
277 pn64 = atomic64_read(&key->tx_pn);
278 aes_tx_sc->pn = cpu_to_le64(pn64);
281 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
285 * For non-QoS this relies on the fact that both the uCode and
286 * mac80211/our RX code use TID 0 for checking the PN.
288 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
289 struct iwl_mvm_sta *mvmsta;
290 struct iwl_mvm_key_pn *ptk_pn;
293 mvmsta = iwl_mvm_sta_from_mac80211(sta);
295 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
296 if (WARN_ON(!ptk_pn)) {
301 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
302 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
303 mvm->trans->num_rx_queues);
304 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
314 for (i = 0; i < IWL_NUM_RSC; i++) {
315 u8 *pn = seq.ccmp.pn;
317 ieee80211_get_key_rx_seq(key, i, &seq);
318 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
326 data->have_rsc_tsc = true;
331 struct wowlan_key_rsc_v5_data {
332 struct iwl_wowlan_rsc_tsc_params_cmd *rsc;
338 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
339 struct ieee80211_vif *vif,
340 struct ieee80211_sta *sta,
341 struct ieee80211_key_conf *key,
344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
345 struct wowlan_key_rsc_v5_data *data = _data;
346 struct ieee80211_key_seq seq;
350 /* only for ciphers that can be PTK/GTK */
351 switch (key->cipher) {
354 case WLAN_CIPHER_SUITE_TKIP:
355 case WLAN_CIPHER_SUITE_CCMP:
356 case WLAN_CIPHER_SUITE_GCMP:
357 case WLAN_CIPHER_SUITE_GCMP_256:
362 rsc = data->rsc->ucast_rsc;
364 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
366 data->gtk_ids[data->gtks] = key->keyidx;
367 rsc = data->rsc->mcast_rsc[data->gtks % 2];
368 if (WARN_ON(key->keyidx >=
369 ARRAY_SIZE(data->rsc->mcast_key_id_map)))
371 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
372 if (data->gtks >= 2) {
373 int prev = data->gtks - 2;
374 int prev_idx = data->gtk_ids[prev];
376 data->rsc->mcast_key_id_map[prev_idx] =
377 IWL_MCAST_KEY_MAP_INVALID;
382 switch (key->cipher) {
386 case WLAN_CIPHER_SUITE_TKIP:
389 * For non-QoS this relies on the fact that both the uCode and
390 * mac80211 use TID 0 (as they need to to avoid replay attacks)
391 * for checking the IV in the frames.
393 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
394 ieee80211_get_key_rx_seq(key, i, &seq);
396 rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) |
400 data->have_rsc = true;
402 case WLAN_CIPHER_SUITE_CCMP:
403 case WLAN_CIPHER_SUITE_GCMP:
404 case WLAN_CIPHER_SUITE_GCMP_256:
406 * For non-QoS this relies on the fact that both the uCode and
407 * mac80211/our RX code use TID 0 for checking the PN.
410 struct iwl_mvm_sta *mvmsta;
411 struct iwl_mvm_key_pn *ptk_pn;
414 mvmsta = iwl_mvm_sta_from_mac80211(sta);
416 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
417 if (WARN_ON(!ptk_pn)) {
422 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
423 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
424 mvm->trans->num_rx_queues);
425 rsc[i] = cpu_to_le64((u64)pn[5] |
435 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
436 u8 *pn = seq.ccmp.pn;
438 ieee80211_get_key_rx_seq(key, i, &seq);
439 rsc[i] = cpu_to_le64((u64)pn[5] |
447 data->have_rsc = true;
452 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
453 struct ieee80211_vif *vif)
455 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
456 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
457 WOWLAN_TSC_RSC_PARAM,
458 IWL_FW_CMD_VER_UNKNOWN);
462 struct wowlan_key_rsc_v5_data data = {};
465 data.rsc = kmalloc(sizeof(*data.rsc), GFP_KERNEL);
469 memset(data.rsc, 0xff, sizeof(*data.rsc));
471 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
472 data.rsc->mcast_key_id_map[i] =
473 IWL_MCAST_KEY_MAP_INVALID;
474 data.rsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
476 ieee80211_iter_keys(mvm->hw, vif,
477 iwl_mvm_wowlan_get_rsc_v5_data,
481 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
482 CMD_ASYNC, sizeof(*data.rsc),
487 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
488 struct wowlan_key_rsc_tsc_data data = {};
491 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
496 size = sizeof(*data.rsc_tsc);
497 data.rsc_tsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
499 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
500 size = sizeof(data.rsc_tsc->params);
503 ieee80211_iter_keys(mvm->hw, vif,
504 iwl_mvm_wowlan_get_rsc_tsc_data,
507 if (data.have_rsc_tsc)
508 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
522 struct wowlan_key_tkip_data {
523 struct iwl_wowlan_tkip_params_cmd tkip;
527 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
528 struct ieee80211_vif *vif,
529 struct ieee80211_sta *sta,
530 struct ieee80211_key_conf *key,
533 struct wowlan_key_tkip_data *data = _data;
534 struct iwl_p1k_cache *rx_p1ks;
536 struct ieee80211_key_seq seq;
538 u16 p1k[IWL_P1K_SIZE];
541 switch (key->cipher) {
544 case WLAN_CIPHER_SUITE_TKIP:
548 rx_p1ks = data->tkip.rx_uni;
550 pn64 = atomic64_read(&key->tx_pn);
552 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
554 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
556 memcpy(data->tkip.mic_keys.tx,
557 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
560 rx_mic_key = data->tkip.mic_keys.rx_unicast;
562 rx_p1ks = data->tkip.rx_multi;
563 rx_mic_key = data->tkip.mic_keys.rx_mcast;
566 for (i = 0; i < IWL_NUM_RSC; i++) {
567 /* wrapping isn't allowed, AP must rekey */
568 if (seq.tkip.iv32 > cur_rx_iv32)
569 cur_rx_iv32 = seq.tkip.iv32;
572 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
574 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
575 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
576 cur_rx_iv32 + 1, p1k);
577 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
580 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
583 data->have_tkip_keys = true;
588 struct wowlan_key_gtk_type_iter {
589 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
592 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
593 struct ieee80211_vif *vif,
594 struct ieee80211_sta *sta,
595 struct ieee80211_key_conf *key,
598 struct wowlan_key_gtk_type_iter *data = _data;
600 switch (key->cipher) {
603 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
604 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
605 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
607 case WLAN_CIPHER_SUITE_AES_CMAC:
608 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
610 case WLAN_CIPHER_SUITE_CCMP:
612 data->kek_kck_cmd->gtk_cipher =
613 cpu_to_le32(STA_KEY_FLG_CCM);
615 case WLAN_CIPHER_SUITE_GCMP:
616 case WLAN_CIPHER_SUITE_GCMP_256:
618 data->kek_kck_cmd->gtk_cipher =
619 cpu_to_le32(STA_KEY_FLG_GCMP);
624 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
625 struct cfg80211_wowlan *wowlan)
627 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
628 struct iwl_host_cmd cmd = {
629 .id = WOWLAN_PATTERNS,
630 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
634 if (!wowlan->n_patterns)
637 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
639 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
643 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
645 for (i = 0; i < wowlan->n_patterns; i++) {
646 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
648 memcpy(&pattern_cmd->patterns[i].mask,
649 wowlan->patterns[i].mask, mask_len);
650 memcpy(&pattern_cmd->patterns[i].pattern,
651 wowlan->patterns[i].pattern,
652 wowlan->patterns[i].pattern_len);
653 pattern_cmd->patterns[i].mask_size = mask_len;
654 pattern_cmd->patterns[i].pattern_size =
655 wowlan->patterns[i].pattern_len;
658 cmd.data[0] = pattern_cmd;
659 err = iwl_mvm_send_cmd(mvm, &cmd);
664 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
665 struct ieee80211_vif *vif,
666 struct cfg80211_wowlan *wowlan)
668 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
669 struct iwl_wowlan_patterns_cmd *pattern_cmd;
670 struct iwl_host_cmd cmd = {
671 .id = WOWLAN_PATTERNS,
672 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
675 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
677 IWL_FW_CMD_VER_UNKNOWN);
679 if (!wowlan->n_patterns)
682 cmd.len[0] = sizeof(*pattern_cmd) +
683 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
685 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
689 pattern_cmd->n_patterns = wowlan->n_patterns;
691 pattern_cmd->sta_id = mvmvif->ap_sta_id;
693 for (i = 0; i < wowlan->n_patterns; i++) {
694 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
696 pattern_cmd->patterns[i].pattern_type =
697 WOWLAN_PATTERN_TYPE_BITMASK;
699 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
700 wowlan->patterns[i].mask, mask_len);
701 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
702 wowlan->patterns[i].pattern,
703 wowlan->patterns[i].pattern_len);
704 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
705 pattern_cmd->patterns[i].u.bitmask.pattern_size =
706 wowlan->patterns[i].pattern_len;
709 cmd.data[0] = pattern_cmd;
710 err = iwl_mvm_send_cmd(mvm, &cmd);
715 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
716 struct ieee80211_sta *ap_sta)
718 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
719 struct ieee80211_chanctx_conf *ctx;
720 u8 chains_static, chains_dynamic;
721 struct cfg80211_chan_def chandef;
723 struct iwl_binding_cmd_v1 binding_cmd = {};
724 struct iwl_time_quota_cmd quota_cmd = {};
725 struct iwl_time_quota_data *quota;
728 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
731 /* add back the PHY */
732 if (WARN_ON(!mvmvif->phy_ctxt))
736 ctx = rcu_dereference(vif->chanctx_conf);
742 chains_static = ctx->rx_chains_static;
743 chains_dynamic = ctx->rx_chains_dynamic;
746 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
747 chains_static, chains_dynamic);
751 /* add back the MAC */
752 mvmvif->uploaded = false;
754 if (WARN_ON(!vif->bss_conf.assoc))
757 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
761 /* add back binding - XXX refactor? */
762 binding_cmd.id_and_color =
763 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
764 mvmvif->phy_ctxt->color));
765 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
767 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
768 mvmvif->phy_ctxt->color));
769 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
771 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
772 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
775 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
776 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
779 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
784 IWL_ERR(mvm, "Binding command failed: %u\n", status);
788 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
791 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
793 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
798 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0);
799 quota->id_and_color =
800 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
801 mvmvif->phy_ctxt->color));
802 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
803 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
805 for (i = 1; i < MAX_BINDINGS; i++) {
806 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i);
807 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
810 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
811 iwl_mvm_quota_cmd_size(mvm), "a_cmd);
813 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
815 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
816 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
821 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
822 struct ieee80211_vif *vif)
824 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
825 struct iwl_nonqos_seq_query_cmd query_cmd = {
826 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
828 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
831 struct iwl_host_cmd cmd = {
832 .id = NON_QOS_TX_COUNTER_CMD,
833 .flags = CMD_WANT_SKB,
838 cmd.data[0] = &query_cmd;
839 cmd.len[0] = sizeof(query_cmd);
841 err = iwl_mvm_send_cmd(mvm, &cmd);
845 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
846 if (size < sizeof(__le16)) {
849 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
850 /* firmware returns next, not last-used seqno */
851 err = (u16) (err - 0x10);
858 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
860 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
861 struct iwl_nonqos_seq_query_cmd query_cmd = {
862 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
864 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
866 .value = cpu_to_le16(mvmvif->seqno),
869 /* return if called during restart, not resume from D3 */
870 if (!mvmvif->seqno_valid)
873 mvmvif->seqno_valid = false;
875 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
876 sizeof(query_cmd), &query_cmd))
877 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
880 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
882 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
884 iwl_mvm_stop_device(mvm);
886 * Set the HW restart bit -- this is mostly true as we're
887 * going to load new firmware and reprogram that, though
888 * the reprogramming is going to be manual to avoid adding
889 * all the MACs that aren't support.
890 * We don't have to clear up everything though because the
891 * reprogramming is manual. When we resume, we'll actually
892 * go through a proper restart sequence again to switch
893 * back to the runtime firmware image.
895 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
897 /* the fw is reset, so all the keys are cleared */
898 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
905 return iwl_mvm_load_d3_fw(mvm);
909 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
910 struct cfg80211_wowlan *wowlan,
911 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
912 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
913 struct ieee80211_sta *ap_sta)
915 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
917 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
919 wowlan_config_cmd->is_11n_connection =
920 ap_sta->ht_cap.ht_supported;
921 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
922 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
924 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
925 WOWLAN_CONFIGURATION, 0) < 6) {
926 /* Query the last used seqno and set it */
927 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
932 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
935 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
937 if (wowlan->disconnect)
938 wowlan_config_cmd->wakeup_filter |=
939 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
940 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
941 if (wowlan->magic_pkt)
942 wowlan_config_cmd->wakeup_filter |=
943 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
944 if (wowlan->gtk_rekey_failure)
945 wowlan_config_cmd->wakeup_filter |=
946 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
947 if (wowlan->eap_identity_req)
948 wowlan_config_cmd->wakeup_filter |=
949 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
950 if (wowlan->four_way_handshake)
951 wowlan_config_cmd->wakeup_filter |=
952 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
953 if (wowlan->n_patterns)
954 wowlan_config_cmd->wakeup_filter |=
955 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
957 if (wowlan->rfkill_release)
958 wowlan_config_cmd->wakeup_filter |=
959 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
963 * Set the "link change" (really "link lost") flag as well
964 * since that implies losing the TCP connection.
966 wowlan_config_cmd->wakeup_filter |=
967 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
968 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
969 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
970 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
974 wowlan_config_cmd->wakeup_filter |=
975 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
976 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
977 IWL_WOWLAN_WAKEUP_RX_FRAME |
978 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
984 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
985 struct ieee80211_vif *vif)
987 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
988 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
989 struct wowlan_key_reprogram_data key_data = {};
990 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
997 * if we have to configure keys, call ieee80211_iter_keys(),
998 * as we need non-atomic context in order to take the
1002 * Note that currently we don't use CMD_ASYNC in the iterator.
1003 * In case of key_data.configure_keys, all the configured
1004 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1005 * take care of locking/unlocking mvm->mutex.
1007 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1014 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1018 if (!fw_has_api(&mvm->fw->ucode_capa,
1019 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1020 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1022 IWL_FW_CMD_VER_UNKNOWN);
1023 struct wowlan_key_tkip_data tkip_data = {};
1027 size = sizeof(tkip_data.tkip);
1028 tkip_data.tkip.sta_id =
1029 cpu_to_le32(mvmvif->ap_sta_id);
1030 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1031 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1037 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1040 if (tkip_data.have_tkip_keys) {
1041 /* send relevant data according to CMD version */
1042 ret = iwl_mvm_send_cmd_pdu(mvm,
1051 /* configure rekey data only if offloaded rekey is supported (d3) */
1052 if (mvmvif->rekey_data.valid) {
1053 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1054 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1056 struct wowlan_key_gtk_type_iter gtk_type_data = {
1057 .kek_kck_cmd = _kek_kck_cmd,
1060 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1061 IWL_ALWAYS_LONG_GROUP,
1062 WOWLAN_KEK_KCK_MATERIAL,
1063 IWL_FW_CMD_VER_UNKNOWN);
1064 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1065 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1068 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1071 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1072 mvmvif->rekey_data.kck_len);
1073 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1074 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1075 mvmvif->rekey_data.kek_len);
1076 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1077 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1078 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1079 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->ap_sta_id);
1082 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1086 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1089 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1090 /* skip the sta_id at the beginning */
1091 _kek_kck_cmd = (void *)
1092 ((u8 *)_kek_kck_cmd) + sizeof(kek_kck_cmd.sta_id);
1095 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1096 mvmvif->rekey_data.akm);
1098 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1099 CMD_ASYNC, cmd_size, _kek_kck_cmd);
1108 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1109 struct cfg80211_wowlan *wowlan,
1110 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1111 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1112 struct ieee80211_sta *ap_sta)
1115 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1116 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1118 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1120 if (!unified_image) {
1121 ret = iwl_mvm_switch_to_d3(mvm);
1125 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1131 * This needs to be unlocked due to lock ordering
1132 * constraints. Since we're in the suspend path
1133 * that isn't really a problem though.
1135 mutex_unlock(&mvm->mutex);
1136 ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
1137 mutex_lock(&mvm->mutex);
1141 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1142 sizeof(*wowlan_config_cmd),
1147 if (fw_has_api(&mvm->fw->ucode_capa,
1148 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1149 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
1151 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1155 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
1159 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1160 struct cfg80211_wowlan *wowlan,
1161 struct cfg80211_sched_scan_request *nd_config,
1162 struct ieee80211_vif *vif)
1165 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1166 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1168 if (!unified_image) {
1169 ret = iwl_mvm_switch_to_d3(mvm);
1173 /* In theory, we wouldn't have to stop a running sched
1174 * scan in order to start another one (for
1175 * net-detect). But in practice this doesn't seem to
1176 * work properly, so stop any running sched_scan now.
1178 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1183 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1184 IWL_MVM_SCAN_NETDETECT);
1188 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1191 /* save the sched scan matchsets... */
1192 if (nd_config->n_match_sets) {
1193 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1194 sizeof(*nd_config->match_sets) *
1195 nd_config->n_match_sets,
1197 if (mvm->nd_match_sets)
1198 mvm->n_nd_match_sets = nd_config->n_match_sets;
1201 /* ...and the sched scan channels for later reporting */
1202 mvm->nd_channels = kmemdup(nd_config->channels,
1203 sizeof(*nd_config->channels) *
1204 nd_config->n_channels,
1206 if (mvm->nd_channels)
1207 mvm->n_nd_channels = nd_config->n_channels;
1212 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1214 kfree(mvm->nd_match_sets);
1215 mvm->nd_match_sets = NULL;
1216 mvm->n_nd_match_sets = 0;
1217 kfree(mvm->nd_channels);
1218 mvm->nd_channels = NULL;
1219 mvm->n_nd_channels = 0;
1222 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1223 struct cfg80211_wowlan *wowlan,
1226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1227 struct ieee80211_vif *vif = NULL;
1228 struct iwl_mvm_vif *mvmvif = NULL;
1229 struct ieee80211_sta *ap_sta = NULL;
1230 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1232 * Program the minimum sleep time to 10 seconds, as many
1233 * platforms have issues processing a wakeup signal while
1234 * still being in the process of suspending.
1236 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1238 struct iwl_host_cmd d3_cfg_cmd = {
1239 .id = D3_CONFIG_CMD,
1240 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1241 .data[0] = &d3_cfg_cmd_data,
1242 .len[0] = sizeof(d3_cfg_cmd_data),
1245 int len __maybe_unused;
1246 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1247 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1251 * mac80211 shouldn't get here, but for D3 test
1252 * it doesn't warrant a warning
1258 mutex_lock(&mvm->mutex);
1260 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1264 vif = iwl_mvm_get_bss_vif(mvm);
1265 if (IS_ERR_OR_NULL(vif)) {
1270 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1272 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
1273 /* if we're not associated, this must be netdetect */
1274 if (!wowlan->nd_config) {
1279 ret = iwl_mvm_netdetect_config(
1280 mvm, wowlan, wowlan->nd_config, vif);
1284 mvm->net_detect = true;
1286 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1288 wowlan_config_cmd.sta_id = mvmvif->ap_sta_id;
1290 ap_sta = rcu_dereference_protected(
1291 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1292 lockdep_is_held(&mvm->mutex));
1293 if (IS_ERR_OR_NULL(ap_sta)) {
1298 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1299 vif, mvmvif, ap_sta);
1302 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1303 vif, mvmvif, ap_sta);
1307 mvm->net_detect = false;
1310 ret = iwl_mvm_power_update_device(mvm);
1314 ret = iwl_mvm_power_update_mac(mvm);
1318 #ifdef CONFIG_IWLWIFI_DEBUGFS
1319 if (mvm->d3_wake_sysassert)
1320 d3_cfg_cmd_data.wakeup_flags |=
1321 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1325 * Prior to 9000 device family the driver needs to stop the dbg
1326 * recording before entering D3. In later devices the FW stops the
1327 * recording automatically.
1329 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1330 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1332 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1334 /* must be last -- this switches firmware state */
1335 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1338 #ifdef CONFIG_IWLWIFI_DEBUGFS
1339 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1340 if (len >= sizeof(u32)) {
1341 mvm->d3_test_pme_ptr =
1342 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1345 iwl_free_resp(&d3_cfg_cmd);
1347 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1349 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1352 iwl_mvm_free_nd(mvm);
1354 if (!unified_image) {
1355 if (mvm->fw_restart > 0) {
1357 ieee80211_restart_hw(mvm->hw);
1361 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1364 mutex_unlock(&mvm->mutex);
1369 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1371 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1373 iwl_mvm_pause_tcm(mvm, true);
1375 iwl_fw_runtime_suspend(&mvm->fwrt);
1377 return __iwl_mvm_suspend(hw, wowlan, false);
1380 /* converted data from the different status responses */
1381 struct iwl_wowlan_status_data {
1383 u32 num_of_gtk_rekeys;
1384 u32 received_beacons;
1386 u32 wake_packet_length;
1387 u32 wake_packet_bufsize;
1389 u16 non_qos_seq_ctr;
1394 /* including RX MIC key for TKIP */
1395 u8 key[WOWLAN_KEY_MAX_SIZE];
1402 * We store both the TKIP and AES representations
1403 * coming from the firmware because we decode the
1404 * data from there before we iterate the keys and
1405 * know which one we need.
1408 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1412 * We use -1 for when we have valid data but don't know
1413 * the key ID from firmware, and thus it needs to be
1414 * installed with the last key (depending on rekeying).
1423 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1430 u8 key[WOWLAN_KEY_MAX_SIZE];
1438 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1439 struct ieee80211_vif *vif,
1440 struct iwl_wowlan_status_data *status)
1442 struct sk_buff *pkt = NULL;
1443 struct cfg80211_wowlan_wakeup wakeup = {
1446 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1447 u32 reasons = status->wakeup_reasons;
1449 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1450 wakeup_report = NULL;
1454 pm_wakeup_event(mvm->dev, 0);
1456 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1457 wakeup.magic_pkt = true;
1459 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1460 wakeup.pattern_idx =
1461 status->pattern_number;
1463 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1464 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1465 wakeup.disconnect = true;
1467 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1468 wakeup.gtk_rekey_failure = true;
1470 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1471 wakeup.rfkill_release = true;
1473 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1474 wakeup.eap_identity_req = true;
1476 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1477 wakeup.four_way_handshake = true;
1479 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1480 wakeup.tcp_connlost = true;
1482 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1483 wakeup.tcp_nomoretokens = true;
1485 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1486 wakeup.tcp_match = true;
1488 if (status->wake_packet_bufsize) {
1489 int pktsize = status->wake_packet_bufsize;
1490 int pktlen = status->wake_packet_length;
1491 const u8 *pktdata = status->wake_packet;
1492 struct ieee80211_hdr *hdr = (void *)pktdata;
1493 int truncated = pktlen - pktsize;
1495 /* this would be a firmware bug */
1496 if (WARN_ON_ONCE(truncated < 0))
1499 if (ieee80211_is_data(hdr->frame_control)) {
1500 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1501 int ivlen = 0, icvlen = 4; /* also FCS */
1503 pkt = alloc_skb(pktsize, GFP_KERNEL);
1507 skb_put_data(pkt, pktdata, hdrlen);
1511 if (ieee80211_has_protected(hdr->frame_control)) {
1513 * This is unlocked and using gtk_i(c)vlen,
1514 * but since everything is under RTNL still
1515 * that's not really a problem - changing
1516 * it would be difficult.
1518 if (is_multicast_ether_addr(hdr->addr1)) {
1519 ivlen = mvm->gtk_ivlen;
1520 icvlen += mvm->gtk_icvlen;
1522 ivlen = mvm->ptk_ivlen;
1523 icvlen += mvm->ptk_icvlen;
1527 /* if truncated, FCS/ICV is (partially) gone */
1528 if (truncated >= icvlen) {
1530 truncated -= icvlen;
1532 icvlen -= truncated;
1536 pktsize -= ivlen + icvlen;
1539 skb_put_data(pkt, pktdata, pktsize);
1541 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1543 wakeup.packet = pkt->data;
1544 wakeup.packet_present_len = pkt->len;
1545 wakeup.packet_len = pkt->len - truncated;
1546 wakeup.packet_80211 = false;
1550 if (truncated >= 4) {
1554 fcslen -= truncated;
1558 wakeup.packet = status->wake_packet;
1559 wakeup.packet_present_len = pktsize;
1560 wakeup.packet_len = pktlen - truncated;
1561 wakeup.packet_80211 = true;
1566 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1570 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1572 u64 pn = le64_to_cpu(le_pn);
1574 seq->ccmp.pn[0] = pn >> 40;
1575 seq->ccmp.pn[1] = pn >> 32;
1576 seq->ccmp.pn[2] = pn >> 24;
1577 seq->ccmp.pn[3] = pn >> 16;
1578 seq->ccmp.pn[4] = pn >> 8;
1579 seq->ccmp.pn[5] = pn;
1582 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1583 struct ieee80211_key_seq *seq)
1585 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1588 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1590 u64 pn = le64_to_cpu(le_pn);
1592 seq->tkip.iv16 = (u16)pn;
1593 seq->tkip.iv32 = (u32)(pn >> 16);
1596 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1597 struct ieee80211_key_seq *seq)
1599 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1600 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1603 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1604 struct ieee80211_key_seq *seq)
1608 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1609 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1612 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1613 struct iwl_wowlan_status_data *status,
1614 struct ieee80211_sta *sta,
1615 struct ieee80211_key_conf *key)
1617 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1618 struct iwl_mvm_key_pn *ptk_pn;
1621 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
1623 if (!iwl_mvm_has_new_rx_api(mvm))
1628 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1629 if (WARN_ON(!ptk_pn)) {
1634 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1637 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1638 memcpy(ptk_pn->q[i].pn[tid],
1639 status->ptk.aes.seq[tid].ccmp.pn,
1640 IEEE80211_CCMP_PN_LEN);
1645 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1646 union iwl_all_tsc_rsc *sc)
1650 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1651 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1653 /* GTK RX counters */
1654 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1655 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
1656 &status->gtk_seq[0].tkip.seq[i]);
1657 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
1658 &status->gtk_seq[0].aes.seq[i]);
1660 status->gtk_seq[0].valid = true;
1661 status->gtk_seq[0].key_id = -1;
1663 /* PTK TX counter */
1664 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1665 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1666 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1668 /* PTK RX counters */
1669 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1670 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1671 &status->ptk.tkip.seq[i]);
1672 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1673 &status->ptk.aes.seq[i]);
1678 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1679 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1680 unsigned int idx, unsigned int key_id)
1684 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1685 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1686 &status->gtk_seq[idx].tkip.seq[tid]);
1687 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1688 &status->gtk_seq[idx].aes.seq[tid]);
1691 status->gtk_seq[idx].valid = true;
1692 status->gtk_seq[idx].key_id = key_id;
1696 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1697 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1701 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1702 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1703 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1705 /* GTK RX counters */
1706 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1707 u8 entry = sc->mcast_key_id_map[i];
1709 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1710 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1714 /* PTK TX counters not needed, assigned in device */
1716 /* PTK RX counters */
1717 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1718 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1719 &status->ptk.tkip.seq[tid]);
1720 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1721 &status->ptk.aes.seq[tid]);
1725 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1726 struct iwl_wowlan_status_data *status,
1729 switch (key->cipher) {
1730 case WLAN_CIPHER_SUITE_CCMP:
1731 case WLAN_CIPHER_SUITE_GCMP:
1732 case WLAN_CIPHER_SUITE_GCMP_256:
1733 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
1735 case WLAN_CIPHER_SUITE_TKIP:
1736 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
1743 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1744 struct iwl_wowlan_status_data *status,
1749 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1750 if (!status->gtk_seq[i].valid)
1753 /* Handle the case where we know the key ID */
1754 if (status->gtk_seq[i].key_id == key->keyidx) {
1757 if (status->num_of_gtk_rekeys)
1758 new_key_id = status->gtk.flags &
1759 IWL_WOWLAN_GTK_IDX_MASK;
1761 /* Don't install a new key's value to an old key */
1762 if (new_key_id != key->keyidx)
1763 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1767 /* handle the case where we didn't, last key only */
1768 if (status->gtk_seq[i].key_id == -1 &&
1769 (!status->num_of_gtk_rekeys || installed))
1770 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1774 struct iwl_mvm_d3_gtk_iter_data {
1775 struct iwl_mvm *mvm;
1776 struct iwl_wowlan_status_data *status;
1779 bool find_phase, unhandled_cipher;
1783 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1784 struct ieee80211_vif *vif,
1785 struct ieee80211_sta *sta,
1786 struct ieee80211_key_conf *key,
1789 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1790 struct iwl_wowlan_status_data *status = data->status;
1792 if (data->unhandled_cipher)
1795 switch (key->cipher) {
1796 case WLAN_CIPHER_SUITE_WEP40:
1797 case WLAN_CIPHER_SUITE_WEP104:
1798 /* ignore WEP completely, nothing to do */
1800 case WLAN_CIPHER_SUITE_CCMP:
1801 case WLAN_CIPHER_SUITE_GCMP:
1802 case WLAN_CIPHER_SUITE_GCMP_256:
1803 case WLAN_CIPHER_SUITE_TKIP:
1804 /* we support these */
1807 /* everything else (even CMAC for MFP) - disconnect from AP */
1808 data->unhandled_cipher = true;
1815 * pairwise key - update sequence counters only;
1816 * note that this assumes no TDLS sessions are active
1819 if (data->find_phase)
1822 switch (key->cipher) {
1823 case WLAN_CIPHER_SUITE_CCMP:
1824 case WLAN_CIPHER_SUITE_GCMP:
1825 case WLAN_CIPHER_SUITE_GCMP_256:
1826 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1827 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
1829 case WLAN_CIPHER_SUITE_TKIP:
1830 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1831 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
1835 /* that's it for this key */
1839 if (data->find_phase) {
1840 data->last_gtk = key;
1841 data->cipher = key->cipher;
1845 if (data->status->num_of_gtk_rekeys)
1846 ieee80211_remove_key(key);
1848 if (data->last_gtk == key)
1849 iwl_mvm_set_key_rx_seq(key, data->status, false);
1852 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1853 struct ieee80211_vif *vif,
1854 struct iwl_wowlan_status_data *status)
1856 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1857 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1861 u32 disconnection_reasons =
1862 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1863 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1865 if (!status || !vif->bss_conf.bssid)
1868 if (status->wakeup_reasons & disconnection_reasons)
1871 /* find last GTK that we used initially, if any */
1872 gtkdata.find_phase = true;
1873 ieee80211_iter_keys(mvm->hw, vif,
1874 iwl_mvm_d3_update_keys, >kdata);
1875 /* not trying to keep connections with MFP/unhandled ciphers */
1876 if (gtkdata.unhandled_cipher)
1878 if (!gtkdata.num_keys)
1880 if (!gtkdata.last_gtk)
1884 * invalidate all other GTKs that might still exist and update
1885 * the one that we used
1887 gtkdata.find_phase = false;
1888 ieee80211_iter_keys(mvm->hw, vif,
1889 iwl_mvm_d3_update_keys, >kdata);
1891 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
1892 status->num_of_gtk_rekeys);
1893 if (status->num_of_gtk_rekeys) {
1894 struct ieee80211_key_conf *key;
1896 struct ieee80211_key_conf conf;
1899 .conf.cipher = gtkdata.cipher,
1901 status->gtk.flags & IWL_WOWLAN_GTK_IDX_MASK,
1905 IWL_DEBUG_WOWLAN(mvm,
1906 "Received from FW GTK cipher %d, key index %d\n",
1907 conf.conf.cipher, conf.conf.keyidx);
1909 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1910 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1911 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1912 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1913 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk.key));
1915 memcpy(conf.conf.key, status->gtk.key, sizeof(status->gtk.key));
1917 switch (gtkdata.cipher) {
1918 case WLAN_CIPHER_SUITE_CCMP:
1919 case WLAN_CIPHER_SUITE_GCMP:
1920 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1922 case WLAN_CIPHER_SUITE_GCMP_256:
1923 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
1925 case WLAN_CIPHER_SUITE_TKIP:
1926 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1930 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1933 iwl_mvm_set_key_rx_seq(key, status, true);
1935 replay_ctr = cpu_to_be64(status->replay_ctr);
1937 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1938 (void *)&replay_ctr, GFP_KERNEL);
1942 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1943 WOWLAN_GET_STATUSES, 0) < 10) {
1944 mvmvif->seqno_valid = true;
1945 /* +0x10 because the set API expects next-to-use, not last-used */
1946 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
1952 /* Occasionally, templates would be nice. This is one of those times ... */
1953 #define iwl_mvm_parse_wowlan_status_common(_ver) \
1954 static struct iwl_wowlan_status_data * \
1955 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
1956 struct iwl_wowlan_status_ ##_ver *data,\
1959 struct iwl_wowlan_status_data *status; \
1962 if (len < sizeof(*data)) { \
1963 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1964 return ERR_PTR(-EIO); \
1967 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
1968 if (len != sizeof(*data) + data_size) { \
1969 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1970 return ERR_PTR(-EIO); \
1973 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL); \
1975 return ERR_PTR(-ENOMEM); \
1977 /* copy all the common fields */ \
1978 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
1979 status->pattern_number = le16_to_cpu(data->pattern_number); \
1980 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
1981 for (i = 0; i < 8; i++) \
1982 status->qos_seq_ctr[i] = \
1983 le16_to_cpu(data->qos_seq_ctr[i]); \
1984 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
1985 status->num_of_gtk_rekeys = \
1986 le32_to_cpu(data->num_of_gtk_rekeys); \
1987 status->received_beacons = le32_to_cpu(data->received_beacons); \
1988 status->wake_packet_length = \
1989 le32_to_cpu(data->wake_packet_length); \
1990 status->wake_packet_bufsize = \
1991 le32_to_cpu(data->wake_packet_bufsize); \
1992 memcpy(status->wake_packet, data->wake_packet, \
1993 status->wake_packet_bufsize); \
1998 iwl_mvm_parse_wowlan_status_common(v6)
1999 iwl_mvm_parse_wowlan_status_common(v7)
2000 iwl_mvm_parse_wowlan_status_common(v9)
2001 iwl_mvm_parse_wowlan_status_common(v12)
2003 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2004 struct iwl_wowlan_gtk_status_v2 *data)
2006 BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key));
2007 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2008 sizeof(data->tkip_mic_key) >
2009 sizeof(status->gtk.key));
2011 status->gtk.len = data->key_len;
2012 status->gtk.flags = data->key_flags;
2014 memcpy(status->gtk.key, data->key, sizeof(data->key));
2016 /* if it's as long as the TKIP encryption key, copy MIC key */
2017 if (status->gtk.len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2018 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2019 data->tkip_mic_key, sizeof(data->tkip_mic_key));
2022 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2023 struct iwl_wowlan_gtk_status_v3 *data)
2025 /* The parts we need are identical in v2 and v3 */
2026 #define CHECK(_f) do { \
2027 BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \
2028 offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \
2029 BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\
2030 offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \
2036 CHECK(tkip_mic_key);
2039 iwl_mvm_convert_gtk_v2(status, (void *)data);
2042 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2043 struct iwl_wowlan_igtk_status *data)
2045 const u8 *ipn = data->ipn;
2047 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2049 status->igtk.len = data->key_len;
2050 status->igtk.flags = data->key_flags;
2052 memcpy(status->igtk.key, data->key, sizeof(data->key));
2054 status->igtk.ipn = ((u64)ipn[5] << 0) |
2055 ((u64)ipn[4] << 8) |
2056 ((u64)ipn[3] << 16) |
2057 ((u64)ipn[2] << 24) |
2058 ((u64)ipn[1] << 32) |
2059 ((u64)ipn[0] << 40);
2062 static struct iwl_wowlan_status_data *
2063 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2065 struct iwl_wowlan_status_data *status;
2066 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2067 .sta_id = cpu_to_le32(sta_id),
2069 struct iwl_host_cmd cmd = {
2070 .id = WOWLAN_GET_STATUSES,
2071 .flags = CMD_WANT_SKB,
2072 .data = { &get_status_cmd, },
2073 .len = { sizeof(get_status_cmd), },
2077 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
2078 WOWLAN_GET_STATUSES,
2079 IWL_FW_CMD_VER_UNKNOWN);
2081 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2084 lockdep_assert_held(&mvm->mutex);
2086 ret = iwl_mvm_send_cmd(mvm, &cmd);
2088 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2089 return ERR_PTR(ret);
2092 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2094 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2095 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2096 WOWLAN_GET_STATUSES, 0);
2098 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2099 WOWLAN_GET_STATUSES, 7);
2101 if (!fw_has_api(&mvm->fw->ucode_capa,
2102 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
2103 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2105 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
2109 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
2110 sizeof(status->gtk.key));
2111 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2112 sizeof(v6->gtk.tkip_mic_key) >
2113 sizeof(status->gtk.key));
2115 /* copy GTK info to the right place */
2116 memcpy(status->gtk.key, v6->gtk.decrypt_key,
2117 sizeof(v6->gtk.decrypt_key));
2118 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2119 v6->gtk.tkip_mic_key,
2120 sizeof(v6->gtk.tkip_mic_key));
2122 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2124 /* hardcode the key length to 16 since v6 only supports 16 */
2125 status->gtk.len = 16;
2128 * The key index only uses 2 bits (values 0 to 3) and
2129 * we always set bit 7 which means this is the
2130 * currently used key.
2132 status->gtk.flags = v6->gtk.key_index | BIT(7);
2133 } else if (notif_ver == 7) {
2134 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2136 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
2140 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2141 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
2142 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
2143 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
2144 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
2146 /* these three command versions have same layout and size, the
2147 * difference is only in a few not used (reserved) fields.
2149 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
2153 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2154 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
2155 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2157 status->tid_tear_down = v9->tid_tear_down;
2158 } else if (notif_ver == 12) {
2159 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2161 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
2165 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2166 iwl_mvm_convert_gtk_v3(status, &v12->gtk[0]);
2167 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2169 status->tid_tear_down = v12->tid_tear_down;
2172 "Firmware advertises unknown WoWLAN status response %d!\n",
2174 status = ERR_PTR(-EIO);
2178 iwl_free_resp(&cmd);
2182 static struct iwl_wowlan_status_data *
2183 iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, u8 sta_id)
2185 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
2187 IWL_FW_CMD_VER_UNKNOWN);
2188 __le32 station_id = cpu_to_le32(sta_id);
2189 u32 cmd_size = cmd_ver != IWL_FW_CMD_VER_UNKNOWN ? sizeof(station_id) : 0;
2191 if (!mvm->net_detect) {
2192 /* only for tracing for now */
2193 int ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0,
2194 cmd_size, &station_id);
2196 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
2199 return iwl_mvm_send_wowlan_get_status(mvm, sta_id);
2202 /* releases the MVM mutex */
2203 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
2204 struct ieee80211_vif *vif)
2206 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2207 struct iwl_wowlan_status_data *status;
2210 struct iwl_mvm_sta *mvm_ap_sta;
2212 status = iwl_mvm_get_wakeup_status(mvm, mvmvif->ap_sta_id);
2216 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2217 status->wakeup_reasons);
2219 /* still at hard-coded place 0 for D3 image */
2220 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2224 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
2225 u16 seq = status->qos_seq_ctr[i];
2226 /* firmware stores last-used value, we store next value */
2228 mvm_ap_sta->tid_data[i].seq_number = seq;
2231 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2232 i = mvm->offload_tid;
2233 iwl_trans_set_q_ptrs(mvm->trans,
2234 mvm_ap_sta->tid_data[i].txq_id,
2235 mvm_ap_sta->tid_data[i].seq_number >> 4);
2238 /* now we have all the data we need, unlock to avoid mac80211 issues */
2239 mutex_unlock(&mvm->mutex);
2241 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
2243 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
2251 mutex_unlock(&mvm->mutex);
2255 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2256 IWL_SCAN_MAX_PROFILES)
2258 struct iwl_mvm_nd_query_results {
2259 u32 matched_profiles;
2260 u8 matches[ND_QUERY_BUF_LEN];
2264 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2265 struct iwl_mvm_nd_query_results *results)
2267 struct iwl_scan_offload_profiles_query *query;
2268 struct iwl_host_cmd cmd = {
2269 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2270 .flags = CMD_WANT_SKB,
2273 size_t query_len, matches_len;
2274 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2276 ret = iwl_mvm_send_cmd(mvm, &cmd);
2278 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2282 if (fw_has_api(&mvm->fw->ucode_capa,
2283 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2284 query_len = sizeof(struct iwl_scan_offload_profiles_query);
2285 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2288 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2289 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2293 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2294 if (len < query_len) {
2295 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2300 query = (void *)cmd.resp_pkt->data;
2302 results->matched_profiles = le32_to_cpu(query->matched_profiles);
2303 memcpy(results->matches, query->matches, matches_len);
2305 #ifdef CONFIG_IWLWIFI_DEBUGFS
2306 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2310 iwl_free_resp(&cmd);
2314 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2315 struct iwl_mvm_nd_query_results *query,
2320 if (fw_has_api(&mvm->fw->ucode_capa,
2321 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2322 struct iwl_scan_offload_profile_match *matches =
2323 (struct iwl_scan_offload_profile_match *)query->matches;
2325 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2326 n_chans += hweight8(matches[idx].matching_channels[i]);
2328 struct iwl_scan_offload_profile_match_v1 *matches =
2329 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2331 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2332 n_chans += hweight8(matches[idx].matching_channels[i]);
2338 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2339 struct iwl_mvm_nd_query_results *query,
2340 struct cfg80211_wowlan_nd_match *match,
2345 if (fw_has_api(&mvm->fw->ucode_capa,
2346 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2347 struct iwl_scan_offload_profile_match *matches =
2348 (struct iwl_scan_offload_profile_match *)query->matches;
2350 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2351 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2352 match->channels[match->n_channels++] =
2353 mvm->nd_channels[i]->center_freq;
2355 struct iwl_scan_offload_profile_match_v1 *matches =
2356 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2358 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2359 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2360 match->channels[match->n_channels++] =
2361 mvm->nd_channels[i]->center_freq;
2365 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
2366 struct ieee80211_vif *vif)
2368 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2369 struct cfg80211_wowlan_wakeup wakeup = {
2372 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
2373 struct iwl_wowlan_status_data *status;
2374 struct iwl_mvm_nd_query_results query;
2375 unsigned long matched_profiles;
2377 int i, n_matches, ret;
2379 status = iwl_mvm_get_wakeup_status(mvm, IWL_MVM_INVALID_STA);
2380 if (!IS_ERR(status)) {
2381 reasons = status->wakeup_reasons;
2385 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2386 wakeup.rfkill_release = true;
2388 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2391 ret = iwl_mvm_netdetect_query_results(mvm, &query);
2392 if (ret || !query.matched_profiles) {
2393 wakeup_report = NULL;
2397 matched_profiles = query.matched_profiles;
2398 if (mvm->n_nd_match_sets) {
2399 n_matches = hweight_long(matched_profiles);
2401 IWL_ERR(mvm, "no net detect match information available\n");
2405 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
2407 if (!net_detect || !n_matches)
2410 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2411 struct cfg80211_wowlan_nd_match *match;
2412 int idx, n_channels = 0;
2414 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
2416 match = kzalloc(struct_size(match, channels, n_channels),
2421 net_detect->matches[net_detect->n_matches++] = match;
2423 /* We inverted the order of the SSIDs in the scan
2424 * request, so invert the index here.
2426 idx = mvm->n_nd_match_sets - i - 1;
2427 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2428 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
2429 match->ssid.ssid_len);
2431 if (mvm->n_nd_channels < n_channels)
2434 iwl_mvm_query_set_freqs(mvm, &query, match, i);
2438 wakeup.net_detect = net_detect;
2440 iwl_mvm_free_nd(mvm);
2442 mutex_unlock(&mvm->mutex);
2443 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
2446 for (i = 0; i < net_detect->n_matches; i++)
2447 kfree(net_detect->matches[i]);
2452 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2453 struct ieee80211_vif *vif)
2455 /* skip the one we keep connection on */
2459 if (vif->type == NL80211_IFTYPE_STATION)
2460 ieee80211_resume_disconnect(vif);
2463 static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
2465 struct error_table_start {
2466 /* cf. struct iwl_error_event_table */
2474 iwl_trans_read_mem_bytes(trans, base,
2475 &err_info, sizeof(err_info));
2476 if (err_info.valid && err_id)
2477 *err_id = le32_to_cpu(err_info.err_id);
2479 return !!err_info.valid;
2482 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2483 struct ieee80211_vif *vif)
2487 /* check for lmac1 error */
2488 if (iwl_mvm_rt_status(mvm->trans,
2489 mvm->trans->dbg.lmac_error_event_table[0],
2491 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2492 struct cfg80211_wowlan_wakeup wakeup = {
2493 .rfkill_release = true,
2495 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2501 /* check if we have lmac2 set and check for error */
2502 if (iwl_mvm_rt_status(mvm->trans,
2503 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2506 /* check for umac error */
2507 if (iwl_mvm_rt_status(mvm->trans,
2508 mvm->trans->dbg.umac_error_event_table, NULL))
2514 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
2516 struct ieee80211_vif *vif = NULL;
2518 enum iwl_d3_status d3_status;
2520 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2521 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2522 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2523 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
2525 mutex_lock(&mvm->mutex);
2527 mvm->last_reset_or_resume_time_jiffies = jiffies;
2529 /* get the BSS vif pointer again */
2530 vif = iwl_mvm_get_bss_vif(mvm);
2531 if (IS_ERR_OR_NULL(vif))
2534 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2536 if (iwl_mvm_check_rt_status(mvm, vif)) {
2537 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2538 iwl_mvm_dump_nic_error_log(mvm);
2539 iwl_dbg_tlv_time_point(&mvm->fwrt,
2540 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
2541 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
2547 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
2551 if (d3_status != IWL_D3_STATUS_ALIVE) {
2552 IWL_INFO(mvm, "Device was reset during suspend\n");
2557 struct iwl_host_cmd cmd = {
2559 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
2563 ret = iwl_mvm_send_cmd(mvm, &cmd);
2565 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2569 switch (mvm->cmd_ver.d0i3_resp) {
2573 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2574 if (len != sizeof(u32)) {
2576 "Error with D0I3_END_CMD response size (%d)\n",
2580 if (IWL_D0I3_RESET_REQUIRE &
2581 le32_to_cpu(*(__le32 *)cmd.resp_pkt->data)) {
2582 iwl_write32(mvm->trans, CSR_RESET,
2583 CSR_RESET_REG_FLAG_FORCE_NMI);
2584 iwl_free_resp(&cmd);
2592 /* after the successful handshake, we're out of D3 */
2593 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2596 * Query the current location and source from the D3 firmware so we
2597 * can play it back when we re-intiailize the D0 firmware
2599 iwl_mvm_update_changed_regdom(mvm);
2601 /* Re-configure PPAG settings */
2602 iwl_mvm_ppag_send_cmd(mvm);
2605 /* Re-configure default SAR profile */
2606 iwl_mvm_sar_select_profile(mvm, 1, 1);
2608 if (mvm->net_detect) {
2609 /* If this is a non-unified image, we restart the FW,
2610 * so no need to stop the netdetect scan. If that
2611 * fails, continue and try to get the wake-up reasons,
2612 * but trigger a HW restart by keeping a failure code
2616 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2619 iwl_mvm_query_netdetect_reasons(mvm, vif);
2620 /* has unlocked the mutex, so skip that */
2623 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
2624 #ifdef CONFIG_IWLWIFI_DEBUGFS
2626 mvm->keep_vif = vif;
2628 /* has unlocked the mutex, so skip that */
2633 iwl_mvm_free_nd(mvm);
2634 mutex_unlock(&mvm->mutex);
2638 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
2639 IEEE80211_IFACE_ITER_NORMAL,
2640 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2643 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
2645 /* no need to reset the device in unified images, if successful */
2646 if (unified_image && !ret) {
2647 /* nothing else to do if we already sent D0I3_END_CMD */
2651 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2657 * Reconfigure the device in one of the following cases:
2658 * 1. We are not using a unified image
2659 * 2. We are using a unified image but had an error while exiting D3
2661 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
2663 /* regardless of what happened, we're now out of D3 */
2664 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2669 int iwl_mvm_resume(struct ieee80211_hw *hw)
2671 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2674 ret = __iwl_mvm_resume(mvm, false);
2676 iwl_mvm_resume_tcm(mvm);
2678 iwl_fw_runtime_resume(&mvm->fwrt);
2683 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2685 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2687 device_set_wakeup_enable(mvm->trans->dev, enabled);
2690 #ifdef CONFIG_IWLWIFI_DEBUGFS
2691 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2693 struct iwl_mvm *mvm = inode->i_private;
2696 if (mvm->d3_test_active)
2699 file->private_data = inode->i_private;
2701 iwl_mvm_pause_tcm(mvm, true);
2703 iwl_fw_runtime_suspend(&mvm->fwrt);
2705 /* start pseudo D3 */
2707 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2714 mvm->d3_test_active = true;
2715 mvm->keep_vif = NULL;
2719 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2720 size_t count, loff_t *ppos)
2722 struct iwl_mvm *mvm = file->private_data;
2726 /* read pme_ptr if available */
2727 if (mvm->d3_test_pme_ptr) {
2728 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2729 mvm->d3_test_pme_ptr);
2734 if (msleep_interruptible(100))
2741 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2742 struct ieee80211_vif *vif)
2744 /* skip the one we keep connection on */
2748 if (vif->type == NL80211_IFTYPE_STATION)
2749 ieee80211_connection_loss(vif);
2752 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2754 struct iwl_mvm *mvm = inode->i_private;
2755 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2756 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2758 mvm->d3_test_active = false;
2760 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2763 __iwl_mvm_resume(mvm, true);
2766 iwl_mvm_resume_tcm(mvm);
2768 iwl_fw_runtime_resume(&mvm->fwrt);
2770 iwl_abort_notification_waits(&mvm->notif_wait);
2771 if (!unified_image) {
2772 int remaining_time = 10;
2774 ieee80211_restart_hw(mvm->hw);
2776 /* wait for restart and disconnect all interfaces */
2777 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2778 remaining_time > 0) {
2783 if (remaining_time == 0)
2784 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2787 ieee80211_iterate_active_interfaces_atomic(
2788 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2789 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2794 const struct file_operations iwl_dbgfs_d3_test_ops = {
2795 .llseek = no_llseek,
2796 .open = iwl_mvm_d3_test_open,
2797 .read = iwl_mvm_d3_test_read,
2798 .release = iwl_mvm_d3_test_release,