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 - 2013 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
64 #include <linux/etherdevice.h>
66 #include <net/cfg80211.h>
69 #include "iwl-modparams.h"
73 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
74 struct ieee80211_vif *vif,
75 struct cfg80211_gtk_rekey_data *data)
77 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
78 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
80 if (iwlwifi_mod_params.sw_crypto)
83 mutex_lock(&mvm->mutex);
85 memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN);
86 memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN);
87 mvmvif->rekey_data.replay_ctr =
88 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
89 mvmvif->rekey_data.valid = true;
91 mutex_unlock(&mvm->mutex);
94 #if IS_ENABLED(CONFIG_IPV6)
95 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
96 struct ieee80211_vif *vif,
97 struct inet6_dev *idev)
99 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
100 struct inet6_ifaddr *ifa;
103 read_lock_bh(&idev->lock);
104 list_for_each_entry(ifa, &idev->addr_list, if_list) {
105 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
107 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS)
110 read_unlock_bh(&idev->lock);
112 mvmvif->num_target_ipv6_addrs = idx;
116 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
117 struct ieee80211_vif *vif, int idx)
119 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
121 mvmvif->tx_key_idx = idx;
124 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
128 for (i = 0; i < IWL_P1K_SIZE; i++)
129 out[i] = cpu_to_le16(p1k[i]);
132 struct wowlan_key_data {
133 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
134 struct iwl_wowlan_tkip_params_cmd *tkip;
135 bool error, use_rsc_tsc, use_tkip;
139 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
140 struct ieee80211_vif *vif,
141 struct ieee80211_sta *sta,
142 struct ieee80211_key_conf *key,
145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
146 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
147 struct wowlan_key_data *data = _data;
148 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
149 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
150 struct iwl_p1k_cache *rx_p1ks;
152 struct ieee80211_key_seq seq;
154 u16 p1k[IWL_P1K_SIZE];
157 mutex_lock(&mvm->mutex);
159 switch (key->cipher) {
160 case WLAN_CIPHER_SUITE_WEP40:
161 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
163 struct iwl_mvm_wep_key_cmd wep_key_cmd;
164 struct iwl_mvm_wep_key wep_key;
166 .wep_key_cmd.mac_id_n_color =
167 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
169 .wep_key_cmd.num_keys = 1,
170 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
171 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
172 .wep_key.key_index = key->keyidx,
173 .wep_key.key_size = key->keylen,
177 * This will fail -- the key functions don't set support
178 * pairwise WEP keys. However, that's better than silently
179 * failing WoWLAN. Or maybe not?
181 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
184 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
185 if (key->keyidx == mvmvif->tx_key_idx) {
186 /* TX key must be at offset 0 */
187 wkc.wep_key.key_offset = 0;
189 /* others start at 1 */
191 wkc.wep_key.key_offset = data->gtk_key_idx;
194 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC,
196 data->error = ret != 0;
198 mvm->ptk_ivlen = key->iv_len;
199 mvm->ptk_icvlen = key->icv_len;
200 mvm->gtk_ivlen = key->iv_len;
201 mvm->gtk_icvlen = key->icv_len;
203 /* don't upload key again */
209 case WLAN_CIPHER_SUITE_AES_CMAC:
211 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
212 * but we also shouldn't abort suspend due to that. It does have
213 * support for the IGTK key renewal, but doesn't really use the
214 * IGTK for anything. This means we could spuriously wake up or
215 * be deauthenticated, but that was considered acceptable.
218 case WLAN_CIPHER_SUITE_TKIP:
220 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
221 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
223 rx_p1ks = data->tkip->rx_uni;
225 ieee80211_get_key_tx_seq(key, &seq);
226 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
227 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
229 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
230 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
232 memcpy(data->tkip->mic_keys.tx,
233 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
236 rx_mic_key = data->tkip->mic_keys.rx_unicast;
239 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
240 rx_p1ks = data->tkip->rx_multi;
241 rx_mic_key = data->tkip->mic_keys.rx_mcast;
245 * For non-QoS this relies on the fact that both the uCode and
246 * mac80211 use TID 0 (as they need to to avoid replay attacks)
247 * for checking the IV in the frames.
249 for (i = 0; i < IWL_NUM_RSC; i++) {
250 ieee80211_get_key_rx_seq(key, i, &seq);
251 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
252 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
253 /* wrapping isn't allowed, AP must rekey */
254 if (seq.tkip.iv32 > cur_rx_iv32)
255 cur_rx_iv32 = seq.tkip.iv32;
258 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
260 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
261 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
262 cur_rx_iv32 + 1, p1k);
263 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
266 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
269 data->use_tkip = true;
270 data->use_rsc_tsc = true;
272 case WLAN_CIPHER_SUITE_CCMP:
274 u8 *pn = seq.ccmp.pn;
276 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
277 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
279 ieee80211_get_key_tx_seq(key, &seq);
280 aes_tx_sc->pn = cpu_to_le64((u64)pn[5] |
287 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
291 * For non-QoS this relies on the fact that both the uCode and
292 * mac80211 use TID 0 for checking the IV in the frames.
294 for (i = 0; i < IWL_NUM_RSC; i++) {
295 u8 *pn = seq.ccmp.pn;
297 ieee80211_get_key_rx_seq(key, i, &seq);
298 aes_sc->pn = cpu_to_le64((u64)pn[5] |
305 data->use_rsc_tsc = true;
310 * The D3 firmware hardcodes the key offset 0 as the key it uses
311 * to transmit packets to the AP, i.e. the PTK.
313 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
315 mvm->ptk_ivlen = key->iv_len;
316 mvm->ptk_icvlen = key->icv_len;
319 key->hw_key_idx = data->gtk_key_idx;
320 mvm->gtk_ivlen = key->iv_len;
321 mvm->gtk_icvlen = key->icv_len;
324 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true);
325 data->error = ret != 0;
327 mutex_unlock(&mvm->mutex);
330 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
331 struct cfg80211_wowlan *wowlan)
333 struct iwl_wowlan_patterns_cmd *pattern_cmd;
334 struct iwl_host_cmd cmd = {
335 .id = WOWLAN_PATTERNS,
336 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
341 if (!wowlan->n_patterns)
344 cmd.len[0] = sizeof(*pattern_cmd) +
345 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern);
347 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
351 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
353 for (i = 0; i < wowlan->n_patterns; i++) {
354 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
356 memcpy(&pattern_cmd->patterns[i].mask,
357 wowlan->patterns[i].mask, mask_len);
358 memcpy(&pattern_cmd->patterns[i].pattern,
359 wowlan->patterns[i].pattern,
360 wowlan->patterns[i].pattern_len);
361 pattern_cmd->patterns[i].mask_size = mask_len;
362 pattern_cmd->patterns[i].pattern_size =
363 wowlan->patterns[i].pattern_len;
366 cmd.data[0] = pattern_cmd;
367 err = iwl_mvm_send_cmd(mvm, &cmd);
372 static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
373 struct ieee80211_vif *vif)
375 struct iwl_proto_offload_cmd cmd = {};
376 #if IS_ENABLED(CONFIG_IPV6)
377 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
380 if (mvmvif->num_target_ipv6_addrs) {
381 cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS);
382 memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN);
385 BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) !=
386 sizeof(mvmvif->target_ipv6_addrs[i]));
388 for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++)
389 memcpy(cmd.target_ipv6_addr[i],
390 &mvmvif->target_ipv6_addrs[i],
391 sizeof(cmd.target_ipv6_addr[i]));
394 if (vif->bss_conf.arp_addr_cnt) {
395 cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP);
396 cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0];
397 memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN);
403 return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC,
407 enum iwl_mvm_tcp_packet_type {
416 static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr)
418 __sum16 check = tcp_v4_check(len, saddr, daddr, 0);
419 return cpu_to_le16(be16_to_cpu((__force __be16)check));
422 static void iwl_mvm_build_tcp_packet(struct iwl_mvm *mvm,
423 struct ieee80211_vif *vif,
424 struct cfg80211_wowlan_tcp *tcp,
425 void *_pkt, u8 *mask,
426 __le16 *pseudo_hdr_csum,
427 enum iwl_mvm_tcp_packet_type ptype)
434 } __packed *pkt = _pkt;
435 u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr);
438 pkt->eth.h_proto = cpu_to_be16(ETH_P_IP),
441 pkt->ip.protocol = IPPROTO_TCP;
445 case MVM_TCP_TX_DATA:
447 memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN);
448 memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN);
450 pkt->ip.saddr = tcp->src;
451 pkt->ip.daddr = tcp->dst;
452 pkt->tcp.source = cpu_to_be16(tcp->src_port);
453 pkt->tcp.dest = cpu_to_be16(tcp->dst_port);
454 /* overwritten for TX SYN later */
455 pkt->tcp.doff = sizeof(struct tcphdr) / 4;
456 pkt->tcp.window = cpu_to_be16(65000);
458 case MVM_TCP_RX_SYNACK:
460 case MVM_TCP_RX_WAKE:
461 memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN);
462 memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN);
463 pkt->ip.saddr = tcp->dst;
464 pkt->ip.daddr = tcp->src;
465 pkt->tcp.source = cpu_to_be16(tcp->dst_port);
466 pkt->tcp.dest = cpu_to_be16(tcp->src_port);
475 /* firmware assumes 8 option bytes - 8 NOPs for now */
476 memset(pkt->data, 0x01, 8);
478 pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4;
481 case MVM_TCP_TX_DATA:
482 ip_tot_len += tcp->payload_len;
483 memcpy(pkt->data, tcp->payload, tcp->payload_len);
491 case MVM_TCP_RX_SYNACK:
498 case MVM_TCP_RX_WAKE:
499 ip_tot_len += tcp->wake_len;
502 memcpy(pkt->data, tcp->wake_data, tcp->wake_len);
508 case MVM_TCP_TX_DATA:
510 pkt->ip.tot_len = cpu_to_be16(ip_tot_len);
511 pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl);
513 case MVM_TCP_RX_WAKE:
514 for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) {
515 u8 tmp = tcp->wake_mask[i];
516 mask[i + 6] |= tmp << 6;
517 if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8))
518 mask[i + 7] = tmp >> 2;
520 /* fall through for ethernet/IP/TCP headers mask */
521 case MVM_TCP_RX_SYNACK:
523 mask[0] = 0xff; /* match ethernet */
525 * match ethernet, ip.version, ip.ihl
526 * the ip.ihl half byte is really masked out by firmware
529 mask[2] = 0x80; /* match ip.protocol */
530 mask[3] = 0xfc; /* match ip.saddr, ip.daddr */
531 mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
532 mask[5] = 0x80; /* match tcp flags */
533 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
537 *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr),
538 pkt->ip.saddr, pkt->ip.daddr);
541 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
542 struct ieee80211_vif *vif,
543 struct cfg80211_wowlan_tcp *tcp)
545 struct iwl_wowlan_remote_wake_config *cfg;
546 struct iwl_host_cmd cmd = {
547 .id = REMOTE_WAKE_CONFIG_CMD,
548 .len = { sizeof(*cfg), },
549 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
557 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
562 cfg->max_syn_retries = 10;
563 cfg->max_data_retries = 10;
564 cfg->tcp_syn_ack_timeout = 1; /* seconds */
565 cfg->tcp_ack_timeout = 1; /* seconds */
568 iwl_mvm_build_tcp_packet(
569 mvm, vif, tcp, cfg->syn_tx.data, NULL,
570 &cfg->syn_tx.info.tcp_pseudo_header_checksum,
572 cfg->syn_tx.info.tcp_payload_length = 0;
575 iwl_mvm_build_tcp_packet(
576 mvm, vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
577 &cfg->synack_rx.info.tcp_pseudo_header_checksum,
579 cfg->synack_rx.info.tcp_payload_length = 0;
581 /* KEEPALIVE/ACK (TX) */
582 iwl_mvm_build_tcp_packet(
583 mvm, vif, tcp, cfg->keepalive_tx.data, NULL,
584 &cfg->keepalive_tx.info.tcp_pseudo_header_checksum,
586 cfg->keepalive_tx.info.tcp_payload_length =
587 cpu_to_le16(tcp->payload_len);
588 cfg->sequence_number_offset = tcp->payload_seq.offset;
589 /* length must be 0..4, the field is little endian */
590 cfg->sequence_number_length = tcp->payload_seq.len;
591 cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start);
592 cfg->keepalive_interval = cpu_to_le16(tcp->data_interval);
593 if (tcp->payload_tok.len) {
594 cfg->token_offset = tcp->payload_tok.offset;
595 cfg->token_length = tcp->payload_tok.len;
597 cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len);
598 memcpy(cfg->tokens, tcp->payload_tok.token_stream,
601 /* set tokens to max value to almost never run out */
602 cfg->num_tokens = cpu_to_le16(65535);
606 iwl_mvm_build_tcp_packet(
607 mvm, vif, tcp, cfg->keepalive_ack_rx.data,
608 cfg->keepalive_ack_rx.rx_mask,
609 &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum,
611 cfg->keepalive_ack_rx.info.tcp_payload_length = 0;
614 iwl_mvm_build_tcp_packet(
615 mvm, vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
616 &cfg->wake_rx.info.tcp_pseudo_header_checksum,
618 cfg->wake_rx.info.tcp_payload_length =
619 cpu_to_le16(tcp->wake_len);
622 iwl_mvm_build_tcp_packet(
623 mvm, vif, tcp, cfg->fin_tx.data, NULL,
624 &cfg->fin_tx.info.tcp_pseudo_header_checksum,
626 cfg->fin_tx.info.tcp_payload_length = 0;
628 ret = iwl_mvm_send_cmd(mvm, &cmd);
634 struct iwl_d3_iter_data {
636 struct ieee80211_vif *vif;
640 static void iwl_mvm_d3_iface_iterator(void *_data, u8 *mac,
641 struct ieee80211_vif *vif)
643 struct iwl_d3_iter_data *data = _data;
644 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
646 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
649 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
653 IWL_ERR(data->mvm, "More than one managed interface active!\n");
661 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
662 struct ieee80211_sta *ap_sta)
664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
665 struct ieee80211_chanctx_conf *ctx;
666 u8 chains_static, chains_dynamic;
667 struct cfg80211_chan_def chandef;
669 struct iwl_binding_cmd binding_cmd = {};
670 struct iwl_time_quota_cmd quota_cmd = {};
673 /* add back the PHY */
674 if (WARN_ON(!mvmvif->phy_ctxt))
678 ctx = rcu_dereference(vif->chanctx_conf);
684 chains_static = ctx->rx_chains_static;
685 chains_dynamic = ctx->rx_chains_dynamic;
688 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
689 chains_static, chains_dynamic);
693 /* add back the MAC */
694 mvmvif->uploaded = false;
696 if (WARN_ON(!vif->bss_conf.assoc))
699 vif->bss_conf.assoc = false;
700 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
701 vif->bss_conf.assoc = true;
705 /* add back binding - XXX refactor? */
706 binding_cmd.id_and_color =
707 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
708 mvmvif->phy_ctxt->color));
709 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
711 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
712 mvmvif->phy_ctxt->color));
713 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
715 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
716 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
719 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
720 sizeof(binding_cmd), &binding_cmd,
723 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
728 IWL_ERR(mvm, "Binding command failed: %u\n", status);
732 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false);
735 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
737 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
742 quota_cmd.quotas[0].id_and_color =
743 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
744 mvmvif->phy_ctxt->color));
745 quota_cmd.quotas[0].quota = cpu_to_le32(100);
746 quota_cmd.quotas[0].max_duration = cpu_to_le32(1000);
748 for (i = 1; i < MAX_BINDINGS; i++)
749 quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID);
751 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC,
752 sizeof(quota_cmd), "a_cmd);
754 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
759 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
762 struct iwl_d3_iter_data suspend_iter_data = {
765 struct ieee80211_vif *vif;
766 struct iwl_mvm_vif *mvmvif;
767 struct ieee80211_sta *ap_sta;
768 struct iwl_mvm_sta *mvm_ap_sta;
769 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
770 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
771 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
772 struct iwl_d3_manager_config d3_cfg_cmd = {};
773 struct wowlan_key_data key_data = {
774 .use_rsc_tsc = false,
780 u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT;
782 if (WARN_ON(!wowlan))
785 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
786 if (!key_data.rsc_tsc)
789 mutex_lock(&mvm->mutex);
791 old_aux_sta_id = mvm->aux_sta.sta_id;
793 /* see if there's only a single BSS vif and it's associated */
794 ieee80211_iterate_active_interfaces_atomic(
795 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
796 iwl_mvm_d3_iface_iterator, &suspend_iter_data);
798 if (suspend_iter_data.error || !suspend_iter_data.vif) {
803 vif = suspend_iter_data.vif;
804 mvmvif = iwl_mvm_vif_from_mac80211(vif);
806 ap_sta = rcu_dereference_protected(
807 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
808 lockdep_is_held(&mvm->mutex));
809 if (IS_ERR_OR_NULL(ap_sta)) {
814 mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
817 * The D3 firmware still hardcodes the AP station ID for the
818 * BSS we're associated with as 0. Store the real STA ID here
819 * and assign 0. When we leave this function, we'll restore
820 * the original value for the resume code.
822 old_ap_sta_id = mvm_ap_sta->sta_id;
823 mvm_ap_sta->sta_id = 0;
824 mvmvif->ap_sta_id = 0;
826 /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */
828 wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported;
831 * We know the last used seqno, and the uCode expects to know that
832 * one, it will increment before TX.
834 seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ;
835 wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq);
838 * For QoS counters, we store the one to use next, so subtract 0x10
839 * since the uCode will add 0x10 *before* using the value while we
840 * increment after using the value (i.e. store the next value to use).
842 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
843 seq = mvm_ap_sta->tid_data[i].seq_number;
845 wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq);
848 if (wowlan->disconnect)
849 wowlan_config_cmd.wakeup_filter |=
850 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
851 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
852 if (wowlan->magic_pkt)
853 wowlan_config_cmd.wakeup_filter |=
854 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
855 if (wowlan->gtk_rekey_failure)
856 wowlan_config_cmd.wakeup_filter |=
857 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
858 if (wowlan->eap_identity_req)
859 wowlan_config_cmd.wakeup_filter |=
860 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
861 if (wowlan->four_way_handshake)
862 wowlan_config_cmd.wakeup_filter |=
863 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
864 if (wowlan->n_patterns)
865 wowlan_config_cmd.wakeup_filter |=
866 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
868 if (wowlan->rfkill_release)
869 d3_cfg_cmd.wakeup_flags |=
870 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
874 * The firmware currently doesn't really look at these, only
875 * the IWL_WOWLAN_WAKEUP_LINK_CHANGE bit. We have to set that
876 * reason bit since losing the connection to the AP implies
877 * losing the TCP connection.
878 * Set the flags anyway as long as they exist, in case this
879 * will be changed in the firmware.
881 wowlan_config_cmd.wakeup_filter |=
882 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
883 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
884 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
885 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
888 iwl_mvm_cancel_scan(mvm);
890 iwl_trans_stop_device(mvm->trans);
893 * Set the HW restart bit -- this is mostly true as we're
894 * going to load new firmware and reprogram that, though
895 * the reprogramming is going to be manual to avoid adding
896 * all the MACs that aren't support.
897 * We don't have to clear up everything though because the
898 * reprogramming is manual. When we resume, we'll actually
899 * go through a proper restart sequence again to switch
900 * back to the runtime firmware image.
902 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
904 /* We reprogram keys and shouldn't allocate new key indices */
905 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
913 * The D3 firmware still hardcodes the AP station ID for the
914 * BSS we're associated with as 0. As a result, we have to move
915 * the auxiliary station to ID 1 so the ID 0 remains free for
916 * the AP station for later.
917 * We set the sta_id to 1 here, and reset it to its previous
918 * value (that we stored above) later.
920 mvm->aux_sta.sta_id = 1;
922 ret = iwl_mvm_load_d3_fw(mvm);
926 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
930 if (!iwlwifi_mod_params.sw_crypto) {
932 * This needs to be unlocked due to lock ordering
933 * constraints. Since we're in the suspend path
934 * that isn't really a problem though.
936 mutex_unlock(&mvm->mutex);
937 ieee80211_iter_keys(mvm->hw, vif,
938 iwl_mvm_wowlan_program_keys,
940 mutex_lock(&mvm->mutex);
941 if (key_data.error) {
946 if (key_data.use_rsc_tsc) {
947 struct iwl_host_cmd rsc_tsc_cmd = {
948 .id = WOWLAN_TSC_RSC_PARAM,
950 .data[0] = key_data.rsc_tsc,
951 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
952 .len[0] = sizeof(*key_data.rsc_tsc),
955 ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd);
960 if (key_data.use_tkip) {
961 ret = iwl_mvm_send_cmd_pdu(mvm,
963 CMD_SYNC, sizeof(tkip_cmd),
969 if (mvmvif->rekey_data.valid) {
970 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
971 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
973 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
974 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
976 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
977 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
979 ret = iwl_mvm_send_cmd_pdu(mvm,
980 WOWLAN_KEK_KCK_MATERIAL,
989 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION,
990 CMD_SYNC, sizeof(wowlan_config_cmd),
995 ret = iwl_mvm_send_patterns(mvm, wowlan);
999 ret = iwl_mvm_send_proto_offload(mvm, vif);
1003 ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp);
1007 /* must be last -- this switches firmware state */
1008 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,
1009 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1013 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1015 iwl_trans_d3_suspend(mvm->trans);
1017 mvm->aux_sta.sta_id = old_aux_sta_id;
1018 mvm_ap_sta->sta_id = old_ap_sta_id;
1019 mvmvif->ap_sta_id = old_ap_sta_id;
1021 kfree(key_data.rsc_tsc);
1023 ieee80211_restart_hw(mvm->hw);
1025 mutex_unlock(&mvm->mutex);
1030 static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1031 struct ieee80211_vif *vif)
1033 u32 base = mvm->error_event_table;
1034 struct error_table_start {
1035 /* cf. struct iwl_error_event_table */
1039 struct cfg80211_wowlan_wakeup wakeup = {
1042 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1043 struct iwl_host_cmd cmd = {
1044 .id = WOWLAN_GET_STATUSES,
1045 .flags = CMD_SYNC | CMD_WANT_SKB,
1047 struct iwl_wowlan_status *status;
1050 struct sk_buff *pkt = NULL;
1052 iwl_trans_read_mem_bytes(mvm->trans, base,
1053 &err_info, sizeof(err_info));
1055 if (err_info.valid) {
1056 IWL_INFO(mvm, "error table is valid (%d)\n",
1058 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
1059 wakeup.rfkill_release = true;
1060 ieee80211_report_wowlan_wakeup(vif, &wakeup,
1066 /* only for tracing for now */
1067 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL);
1069 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1071 ret = iwl_mvm_send_cmd(mvm, &cmd);
1073 IWL_ERR(mvm, "failed to query status (%d)\n", ret);
1077 /* RF-kill already asserted again... */
1081 len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
1082 if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) {
1083 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1087 status = (void *)cmd.resp_pkt->data;
1089 if (len - sizeof(struct iwl_cmd_header) !=
1091 ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4)) {
1092 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1096 reasons = le32_to_cpu(status->wakeup_reasons);
1098 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1099 wakeup_report = NULL;
1103 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1104 wakeup.magic_pkt = true;
1106 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1107 wakeup.pattern_idx =
1108 le16_to_cpu(status->pattern_number);
1110 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1111 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1112 wakeup.disconnect = true;
1114 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1115 wakeup.gtk_rekey_failure = true;
1117 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1118 wakeup.rfkill_release = true;
1120 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1121 wakeup.eap_identity_req = true;
1123 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1124 wakeup.four_way_handshake = true;
1126 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1127 wakeup.tcp_connlost = true;
1129 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1130 wakeup.tcp_nomoretokens = true;
1132 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1133 wakeup.tcp_match = true;
1135 if (status->wake_packet_bufsize) {
1136 int pktsize = le32_to_cpu(status->wake_packet_bufsize);
1137 int pktlen = le32_to_cpu(status->wake_packet_length);
1138 const u8 *pktdata = status->wake_packet;
1139 struct ieee80211_hdr *hdr = (void *)pktdata;
1140 int truncated = pktlen - pktsize;
1142 /* this would be a firmware bug */
1143 if (WARN_ON_ONCE(truncated < 0))
1146 if (ieee80211_is_data(hdr->frame_control)) {
1147 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1148 int ivlen = 0, icvlen = 4; /* also FCS */
1150 pkt = alloc_skb(pktsize, GFP_KERNEL);
1154 memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen);
1158 if (ieee80211_has_protected(hdr->frame_control)) {
1159 if (is_multicast_ether_addr(hdr->addr1)) {
1160 ivlen = mvm->gtk_ivlen;
1161 icvlen += mvm->gtk_icvlen;
1163 ivlen = mvm->ptk_ivlen;
1164 icvlen += mvm->ptk_icvlen;
1168 /* if truncated, FCS/ICV is (partially) gone */
1169 if (truncated >= icvlen) {
1171 truncated -= icvlen;
1173 icvlen -= truncated;
1177 pktsize -= ivlen + icvlen;
1180 memcpy(skb_put(pkt, pktsize), pktdata, pktsize);
1182 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1184 wakeup.packet = pkt->data;
1185 wakeup.packet_present_len = pkt->len;
1186 wakeup.packet_len = pkt->len - truncated;
1187 wakeup.packet_80211 = false;
1191 if (truncated >= 4) {
1195 fcslen -= truncated;
1199 wakeup.packet = status->wake_packet;
1200 wakeup.packet_present_len = pktsize;
1201 wakeup.packet_len = pktlen - truncated;
1202 wakeup.packet_80211 = true;
1207 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1211 iwl_free_resp(&cmd);
1214 int iwl_mvm_resume(struct ieee80211_hw *hw)
1216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1217 struct iwl_d3_iter_data resume_iter_data = {
1220 struct ieee80211_vif *vif = NULL;
1222 enum iwl_d3_status d3_status;
1224 mutex_lock(&mvm->mutex);
1226 /* get the BSS vif pointer again */
1227 ieee80211_iterate_active_interfaces_atomic(
1228 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1229 iwl_mvm_d3_iface_iterator, &resume_iter_data);
1231 if (WARN_ON(resume_iter_data.error || !resume_iter_data.vif))
1234 vif = resume_iter_data.vif;
1236 ret = iwl_trans_d3_resume(mvm->trans, &d3_status);
1240 if (d3_status != IWL_D3_STATUS_ALIVE) {
1241 IWL_INFO(mvm, "Device was reset during suspend\n");
1245 iwl_mvm_query_wakeup_reasons(mvm, vif);
1248 mutex_unlock(&mvm->mutex);
1251 ieee80211_resume_disconnect(vif);
1253 /* return 1 to reconfigure the device */
1254 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1258 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
1260 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1262 device_set_wakeup_enable(mvm->trans->dev, enabled);