| // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
| /* |
| * Copyright (C) 2012-2014, 2018-2023 Intel Corporation |
| * Copyright (C) 2013-2015 Intel Mobile Communications GmbH |
| * Copyright (C) 2016-2017 Intel Deutschland GmbH |
| */ |
| #include <linux/etherdevice.h> |
| #include <linux/ip.h> |
| #include <linux/fs.h> |
| #include <net/cfg80211.h> |
| #include <net/ipv6.h> |
| #include <net/tcp.h> |
| #include <net/addrconf.h> |
| #include "iwl-modparams.h" |
| #include "fw-api.h" |
| #include "mvm.h" |
| #include "fw/img.h" |
| |
| void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct cfg80211_gtk_rekey_data *data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| mutex_lock(&mvm->mutex); |
| |
| mvmvif->rekey_data.kek_len = data->kek_len; |
| mvmvif->rekey_data.kck_len = data->kck_len; |
| memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len); |
| memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len); |
| mvmvif->rekey_data.akm = data->akm & 0xFF; |
| mvmvif->rekey_data.replay_ctr = |
| cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr)); |
| mvmvif->rekey_data.valid = true; |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| #if IS_ENABLED(CONFIG_IPV6) |
| void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct inet6_dev *idev) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct inet6_ifaddr *ifa; |
| int idx = 0; |
| |
| memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs)); |
| |
| read_lock_bh(&idev->lock); |
| list_for_each_entry(ifa, &idev->addr_list, if_list) { |
| mvmvif->target_ipv6_addrs[idx] = ifa->addr; |
| if (ifa->flags & IFA_F_TENTATIVE) |
| __set_bit(idx, mvmvif->tentative_addrs); |
| idx++; |
| if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) |
| break; |
| } |
| read_unlock_bh(&idev->lock); |
| |
| mvmvif->num_target_ipv6_addrs = idx; |
| } |
| #endif |
| |
| void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, int idx) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| mvmvif->tx_key_idx = idx; |
| } |
| |
| static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) |
| { |
| int i; |
| |
| for (i = 0; i < IWL_P1K_SIZE; i++) |
| out[i] = cpu_to_le16(p1k[i]); |
| } |
| |
| static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key, |
| struct iwl_mvm_key_pn *ptk_pn, |
| struct ieee80211_key_seq *seq, |
| int tid, int queues) |
| { |
| const u8 *ret = seq->ccmp.pn; |
| int i; |
| |
| /* get the PN from mac80211, used on the default queue */ |
| ieee80211_get_key_rx_seq(key, tid, seq); |
| |
| /* and use the internal data for the other queues */ |
| for (i = 1; i < queues; i++) { |
| const u8 *tmp = ptk_pn->q[i].pn[tid]; |
| |
| if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0) |
| ret = tmp; |
| } |
| |
| return ret; |
| } |
| |
| struct wowlan_key_reprogram_data { |
| bool error; |
| int wep_key_idx; |
| }; |
| |
| static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct wowlan_key_reprogram_data *data = _data; |
| int ret; |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ |
| struct { |
| struct iwl_mvm_wep_key_cmd wep_key_cmd; |
| struct iwl_mvm_wep_key wep_key; |
| } __packed wkc = { |
| .wep_key_cmd.mac_id_n_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| mvmvif->color)), |
| .wep_key_cmd.num_keys = 1, |
| /* firmware sets STA_KEY_FLG_WEP_13BYTES */ |
| .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, |
| .wep_key.key_index = key->keyidx, |
| .wep_key.key_size = key->keylen, |
| }; |
| |
| /* |
| * This will fail -- the key functions don't set support |
| * pairwise WEP keys. However, that's better than silently |
| * failing WoWLAN. Or maybe not? |
| */ |
| if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) |
| break; |
| |
| memcpy(&wkc.wep_key.key[3], key->key, key->keylen); |
| if (key->keyidx == mvmvif->tx_key_idx) { |
| /* TX key must be at offset 0 */ |
| wkc.wep_key.key_offset = 0; |
| } else { |
| /* others start at 1 */ |
| data->wep_key_idx++; |
| wkc.wep_key.key_offset = data->wep_key_idx; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc); |
| data->error = ret != 0; |
| |
| mvm->ptk_ivlen = key->iv_len; |
| mvm->ptk_icvlen = key->icv_len; |
| mvm->gtk_ivlen = key->iv_len; |
| mvm->gtk_icvlen = key->icv_len; |
| mutex_unlock(&mvm->mutex); |
| |
| /* don't upload key again */ |
| return; |
| } |
| default: |
| data->error = true; |
| return; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| return; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| /* |
| * Ignore CMAC keys -- the WoWLAN firmware doesn't support them |
| * but we also shouldn't abort suspend due to that. It does have |
| * support for the IGTK key renewal, but doesn't really use the |
| * IGTK for anything. This means we could spuriously wake up or |
| * be deauthenticated, but that was considered acceptable. |
| */ |
| return; |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| break; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| /* |
| * The D3 firmware hardcodes the key offset 0 as the key it |
| * uses to transmit packets to the AP, i.e. the PTK. |
| */ |
| if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
| mvm->ptk_ivlen = key->iv_len; |
| mvm->ptk_icvlen = key->icv_len; |
| ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); |
| } else { |
| /* |
| * firmware only supports TSC/RSC for a single key, |
| * so if there are multiple keep overwriting them |
| * with new ones -- this relies on mac80211 doing |
| * list_add_tail(). |
| */ |
| mvm->gtk_ivlen = key->iv_len; |
| mvm->gtk_icvlen = key->icv_len; |
| ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); |
| } |
| mutex_unlock(&mvm->mutex); |
| data->error = ret != 0; |
| } |
| |
| struct wowlan_key_rsc_tsc_data { |
| struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc; |
| bool have_rsc_tsc; |
| }; |
| |
| static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct wowlan_key_rsc_tsc_data *data = _data; |
| struct aes_sc *aes_sc; |
| struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; |
| struct ieee80211_key_seq seq; |
| int i; |
| |
| switch (key->cipher) { |
| default: |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| if (sta) { |
| u64 pn64; |
| |
| tkip_sc = |
| data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc; |
| tkip_tx_sc = |
| &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc; |
| |
| pn64 = atomic64_read(&key->tx_pn); |
| tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); |
| tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); |
| } else { |
| tkip_sc = |
| data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc; |
| } |
| |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211 use TID 0 (as they need to to avoid replay attacks) |
| * for checking the IV in the frames. |
| */ |
| for (i = 0; i < IWL_NUM_RSC; i++) { |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); |
| tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); |
| } |
| |
| data->have_rsc_tsc = true; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| if (sta) { |
| struct aes_sc *aes_tx_sc; |
| u64 pn64; |
| |
| aes_sc = |
| data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc; |
| aes_tx_sc = |
| &data->rsc_tsc->params.all_tsc_rsc.aes.tsc; |
| |
| pn64 = atomic64_read(&key->tx_pn); |
| aes_tx_sc->pn = cpu_to_le64(pn64); |
| } else { |
| aes_sc = |
| data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc; |
| } |
| |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211/our RX code use TID 0 for checking the PN. |
| */ |
| if (sta && iwl_mvm_has_new_rx_api(mvm)) { |
| struct iwl_mvm_sta *mvmsta; |
| struct iwl_mvm_key_pn *ptk_pn; |
| const u8 *pn; |
| |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| rcu_read_lock(); |
| ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); |
| if (WARN_ON(!ptk_pn)) { |
| rcu_read_unlock(); |
| break; |
| } |
| |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, |
| mvm->trans->num_rx_queues); |
| aes_sc[i].pn = cpu_to_le64((u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } |
| |
| rcu_read_unlock(); |
| } else { |
| for (i = 0; i < IWL_NUM_RSC; i++) { |
| u8 *pn = seq.ccmp.pn; |
| |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| aes_sc[i].pn = cpu_to_le64((u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } |
| } |
| data->have_rsc_tsc = true; |
| break; |
| } |
| } |
| |
| struct wowlan_key_rsc_v5_data { |
| struct iwl_wowlan_rsc_tsc_params_cmd *rsc; |
| bool have_rsc; |
| int gtks; |
| int gtk_ids[4]; |
| }; |
| |
| static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct wowlan_key_rsc_v5_data *data = _data; |
| struct ieee80211_key_seq seq; |
| __le64 *rsc; |
| int i; |
| |
| /* only for ciphers that can be PTK/GTK */ |
| switch (key->cipher) { |
| default: |
| return; |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| break; |
| } |
| |
| if (sta) { |
| rsc = data->rsc->ucast_rsc; |
| } else { |
| if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids))) |
| return; |
| data->gtk_ids[data->gtks] = key->keyidx; |
| rsc = data->rsc->mcast_rsc[data->gtks % 2]; |
| if (WARN_ON(key->keyidx >= |
| ARRAY_SIZE(data->rsc->mcast_key_id_map))) |
| return; |
| data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2; |
| if (data->gtks >= 2) { |
| int prev = data->gtks - 2; |
| int prev_idx = data->gtk_ids[prev]; |
| |
| data->rsc->mcast_key_id_map[prev_idx] = |
| IWL_MCAST_KEY_MAP_INVALID; |
| } |
| data->gtks++; |
| } |
| |
| switch (key->cipher) { |
| default: |
| WARN_ON(1); |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211 use TID 0 (as they need to to avoid replay attacks) |
| * for checking the IV in the frames. |
| */ |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| |
| rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) | |
| seq.tkip.iv16); |
| } |
| |
| data->have_rsc = true; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211/our RX code use TID 0 for checking the PN. |
| */ |
| if (sta) { |
| struct iwl_mvm_sta *mvmsta; |
| struct iwl_mvm_key_pn *ptk_pn; |
| const u8 *pn; |
| |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| rcu_read_lock(); |
| ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); |
| if (WARN_ON(!ptk_pn)) { |
| rcu_read_unlock(); |
| break; |
| } |
| |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, |
| mvm->trans->num_rx_queues); |
| rsc[i] = cpu_to_le64((u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } |
| |
| rcu_read_unlock(); |
| } else { |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| u8 *pn = seq.ccmp.pn; |
| |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| rsc[i] = cpu_to_le64((u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } |
| } |
| data->have_rsc = true; |
| break; |
| } |
| } |
| |
| static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM, |
| IWL_FW_CMD_VER_UNKNOWN); |
| int ret; |
| |
| if (ver == 5) { |
| struct wowlan_key_rsc_v5_data data = {}; |
| int i; |
| |
| data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL); |
| if (!data.rsc) |
| return -ENOMEM; |
| |
| for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++) |
| data.rsc->mcast_key_id_map[i] = |
| IWL_MCAST_KEY_MAP_INVALID; |
| data.rsc->sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id); |
| |
| ieee80211_iter_keys(mvm->hw, vif, |
| iwl_mvm_wowlan_get_rsc_v5_data, |
| &data); |
| |
| if (data.have_rsc) |
| ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, |
| CMD_ASYNC, sizeof(*data.rsc), |
| data.rsc); |
| else |
| ret = 0; |
| kfree(data.rsc); |
| } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) { |
| struct wowlan_key_rsc_tsc_data data = {}; |
| int size; |
| |
| data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL); |
| if (!data.rsc_tsc) |
| return -ENOMEM; |
| |
| if (ver == 4) { |
| size = sizeof(*data.rsc_tsc); |
| data.rsc_tsc->sta_id = |
| cpu_to_le32(mvmvif->deflink.ap_sta_id); |
| } else { |
| /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */ |
| size = sizeof(data.rsc_tsc->params); |
| } |
| |
| ieee80211_iter_keys(mvm->hw, vif, |
| iwl_mvm_wowlan_get_rsc_tsc_data, |
| &data); |
| |
| if (data.have_rsc_tsc) |
| ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, |
| CMD_ASYNC, size, |
| data.rsc_tsc); |
| else |
| ret = 0; |
| kfree(data.rsc_tsc); |
| } else { |
| ret = 0; |
| WARN_ON_ONCE(1); |
| } |
| |
| return ret; |
| } |
| |
| struct wowlan_key_tkip_data { |
| struct iwl_wowlan_tkip_params_cmd tkip; |
| bool have_tkip_keys; |
| }; |
| |
| static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct wowlan_key_tkip_data *data = _data; |
| struct iwl_p1k_cache *rx_p1ks; |
| u8 *rx_mic_key; |
| struct ieee80211_key_seq seq; |
| u32 cur_rx_iv32 = 0; |
| u16 p1k[IWL_P1K_SIZE]; |
| int i; |
| |
| switch (key->cipher) { |
| default: |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| if (sta) { |
| u64 pn64; |
| |
| rx_p1ks = data->tkip.rx_uni; |
| |
| pn64 = atomic64_read(&key->tx_pn); |
| |
| ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64), |
| p1k); |
| iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k); |
| |
| memcpy(data->tkip.mic_keys.tx, |
| &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], |
| IWL_MIC_KEY_SIZE); |
| |
| rx_mic_key = data->tkip.mic_keys.rx_unicast; |
| } else { |
| rx_p1ks = data->tkip.rx_multi; |
| rx_mic_key = data->tkip.mic_keys.rx_mcast; |
| } |
| |
| for (i = 0; i < IWL_NUM_RSC; i++) { |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| /* wrapping isn't allowed, AP must rekey */ |
| if (seq.tkip.iv32 > cur_rx_iv32) |
| cur_rx_iv32 = seq.tkip.iv32; |
| } |
| |
| ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, |
| cur_rx_iv32, p1k); |
| iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); |
| ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, |
| cur_rx_iv32 + 1, p1k); |
| iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); |
| |
| memcpy(rx_mic_key, |
| &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], |
| IWL_MIC_KEY_SIZE); |
| |
| data->have_tkip_keys = true; |
| break; |
| } |
| } |
| |
| struct wowlan_key_gtk_type_iter { |
| struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd; |
| }; |
| |
| static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct wowlan_key_gtk_type_iter *data = _data; |
| |
| switch (key->cipher) { |
| default: |
| return; |
| case WLAN_CIPHER_SUITE_TKIP: |
| if (!sta) |
| data->kek_kck_cmd->gtk_cipher = |
| cpu_to_le32(STA_KEY_FLG_TKIP); |
| return; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP); |
| return; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM); |
| return; |
| case WLAN_CIPHER_SUITE_CCMP: |
| if (!sta) |
| data->kek_kck_cmd->gtk_cipher = |
| cpu_to_le32(STA_KEY_FLG_CCM); |
| return; |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| if (!sta) |
| data->kek_kck_cmd->gtk_cipher = |
| cpu_to_le32(STA_KEY_FLG_GCMP); |
| return; |
| } |
| } |
| |
| static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm, |
| struct cfg80211_wowlan *wowlan) |
| { |
| struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = WOWLAN_PATTERNS, |
| .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| }; |
| int i, err; |
| |
| if (!wowlan->n_patterns) |
| return 0; |
| |
| cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); |
| |
| pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); |
| if (!pattern_cmd) |
| return -ENOMEM; |
| |
| pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); |
| |
| for (i = 0; i < wowlan->n_patterns; i++) { |
| int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); |
| |
| memcpy(&pattern_cmd->patterns[i].mask, |
| wowlan->patterns[i].mask, mask_len); |
| memcpy(&pattern_cmd->patterns[i].pattern, |
| wowlan->patterns[i].pattern, |
| wowlan->patterns[i].pattern_len); |
| pattern_cmd->patterns[i].mask_size = mask_len; |
| pattern_cmd->patterns[i].pattern_size = |
| wowlan->patterns[i].pattern_len; |
| } |
| |
| cmd.data[0] = pattern_cmd; |
| err = iwl_mvm_send_cmd(mvm, &cmd); |
| kfree(pattern_cmd); |
| return err; |
| } |
| |
| static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct cfg80211_wowlan *wowlan) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_wowlan_patterns_cmd *pattern_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = WOWLAN_PATTERNS, |
| .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| }; |
| int i, err; |
| int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, |
| IWL_FW_CMD_VER_UNKNOWN); |
| |
| if (!wowlan->n_patterns) |
| return 0; |
| |
| cmd.len[0] = sizeof(*pattern_cmd) + |
| wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2); |
| |
| pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL); |
| if (!pattern_cmd) |
| return -ENOMEM; |
| |
| pattern_cmd->n_patterns = wowlan->n_patterns; |
| if (ver >= 3) |
| pattern_cmd->sta_id = mvmvif->deflink.ap_sta_id; |
| |
| for (i = 0; i < wowlan->n_patterns; i++) { |
| int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); |
| |
| pattern_cmd->patterns[i].pattern_type = |
| WOWLAN_PATTERN_TYPE_BITMASK; |
| |
| memcpy(&pattern_cmd->patterns[i].u.bitmask.mask, |
| wowlan->patterns[i].mask, mask_len); |
| memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern, |
| wowlan->patterns[i].pattern, |
| wowlan->patterns[i].pattern_len); |
| pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len; |
| pattern_cmd->patterns[i].u.bitmask.pattern_size = |
| wowlan->patterns[i].pattern_len; |
| } |
| |
| cmd.data[0] = pattern_cmd; |
| err = iwl_mvm_send_cmd(mvm, &cmd); |
| kfree(pattern_cmd); |
| return err; |
| } |
| |
| static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| struct ieee80211_sta *ap_sta) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct ieee80211_chanctx_conf *ctx; |
| u8 chains_static, chains_dynamic; |
| struct cfg80211_chan_def chandef; |
| int ret, i; |
| struct iwl_binding_cmd_v1 binding_cmd = {}; |
| struct iwl_time_quota_cmd quota_cmd = {}; |
| struct iwl_time_quota_data *quota; |
| u32 status; |
| |
| if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm))) |
| return -EINVAL; |
| |
| /* add back the PHY */ |
| if (WARN_ON(!mvmvif->deflink.phy_ctxt)) |
| return -EINVAL; |
| |
| rcu_read_lock(); |
| ctx = rcu_dereference(vif->bss_conf.chanctx_conf); |
| if (WARN_ON(!ctx)) { |
| rcu_read_unlock(); |
| return -EINVAL; |
| } |
| chandef = ctx->def; |
| chains_static = ctx->rx_chains_static; |
| chains_dynamic = ctx->rx_chains_dynamic; |
| rcu_read_unlock(); |
| |
| ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef, |
| chains_static, chains_dynamic); |
| if (ret) |
| return ret; |
| |
| /* add back the MAC */ |
| mvmvif->uploaded = false; |
| |
| if (WARN_ON(!vif->cfg.assoc)) |
| return -EINVAL; |
| |
| ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
| if (ret) |
| return ret; |
| |
| /* add back binding - XXX refactor? */ |
| binding_cmd.id_and_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, |
| mvmvif->deflink.phy_ctxt->color)); |
| binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); |
| binding_cmd.phy = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, |
| mvmvif->deflink.phy_ctxt->color)); |
| binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| mvmvif->color)); |
| for (i = 1; i < MAX_MACS_IN_BINDING; i++) |
| binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); |
| |
| status = 0; |
| ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, |
| IWL_BINDING_CMD_SIZE_V1, &binding_cmd, |
| &status); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to add binding: %d\n", ret); |
| return ret; |
| } |
| |
| if (status) { |
| IWL_ERR(mvm, "Binding command failed: %u\n", status); |
| return -EIO; |
| } |
| |
| ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0); |
| if (ret) |
| return ret; |
| rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id], |
| ap_sta); |
| |
| ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| if (ret) |
| return ret; |
| |
| /* and some quota */ |
| quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0); |
| quota->id_and_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, |
| mvmvif->deflink.phy_ctxt->color)); |
| quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); |
| quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); |
| |
| for (i = 1; i < MAX_BINDINGS; i++) { |
| quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i); |
| quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID); |
| } |
| |
| ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, |
| iwl_mvm_quota_cmd_size(mvm), "a_cmd); |
| if (ret) |
| IWL_ERR(mvm, "Failed to send quota: %d\n", ret); |
| |
| if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false)) |
| IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); |
| |
| return 0; |
| } |
| |
| static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_nonqos_seq_query_cmd query_cmd = { |
| .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), |
| .mac_id_n_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| mvmvif->color)), |
| }; |
| struct iwl_host_cmd cmd = { |
| .id = NON_QOS_TX_COUNTER_CMD, |
| .flags = CMD_WANT_SKB, |
| }; |
| int err; |
| u32 size; |
| |
| cmd.data[0] = &query_cmd; |
| cmd.len[0] = sizeof(query_cmd); |
| |
| err = iwl_mvm_send_cmd(mvm, &cmd); |
| if (err) |
| return err; |
| |
| size = iwl_rx_packet_payload_len(cmd.resp_pkt); |
| if (size < sizeof(__le16)) { |
| err = -EINVAL; |
| } else { |
| err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); |
| /* firmware returns next, not last-used seqno */ |
| err = (u16) (err - 0x10); |
| } |
| |
| iwl_free_resp(&cmd); |
| return err; |
| } |
| |
| void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_nonqos_seq_query_cmd query_cmd = { |
| .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), |
| .mac_id_n_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| mvmvif->color)), |
| .value = cpu_to_le16(mvmvif->seqno), |
| }; |
| |
| /* return if called during restart, not resume from D3 */ |
| if (!mvmvif->seqno_valid) |
| return; |
| |
| mvmvif->seqno_valid = false; |
| |
| if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, |
| sizeof(query_cmd), &query_cmd)) |
| IWL_ERR(mvm, "failed to set non-QoS seqno\n"); |
| } |
| |
| static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) |
| { |
| iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
| |
| iwl_mvm_stop_device(mvm); |
| /* |
| * Set the HW restart bit -- this is mostly true as we're |
| * going to load new firmware and reprogram that, though |
| * the reprogramming is going to be manual to avoid adding |
| * all the MACs that aren't support. |
| * We don't have to clear up everything though because the |
| * reprogramming is manual. When we resume, we'll actually |
| * go through a proper restart sequence again to switch |
| * back to the runtime firmware image. |
| */ |
| set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| |
| /* the fw is reset, so all the keys are cleared */ |
| memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
| |
| mvm->ptk_ivlen = 0; |
| mvm->ptk_icvlen = 0; |
| mvm->ptk_ivlen = 0; |
| mvm->ptk_icvlen = 0; |
| |
| return iwl_mvm_load_d3_fw(mvm); |
| } |
| |
| static int |
| iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, |
| struct cfg80211_wowlan *wowlan, |
| struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
| struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
| struct ieee80211_sta *ap_sta) |
| { |
| struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
| |
| /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ |
| |
| wowlan_config_cmd->is_11n_connection = |
| ap_sta->deflink.ht_cap.ht_supported; |
| wowlan_config_cmd->flags = ENABLE_L3_FILTERING | |
| ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; |
| |
| if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) { |
| /* Query the last used seqno and set it */ |
| int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); |
| |
| if (ret < 0) |
| return ret; |
| |
| wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); |
| } |
| |
| iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); |
| |
| if (wowlan->disconnect) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
| IWL_WOWLAN_WAKEUP_LINK_CHANGE); |
| if (wowlan->magic_pkt) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); |
| if (wowlan->gtk_rekey_failure) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
| if (wowlan->eap_identity_req) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
| if (wowlan->four_way_handshake) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
| if (wowlan->n_patterns) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); |
| |
| if (wowlan->rfkill_release) |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
| |
| if (wowlan->tcp) { |
| /* |
| * Set the "link change" (really "link lost") flag as well |
| * since that implies losing the TCP connection. |
| */ |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | |
| IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | |
| IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | |
| IWL_WOWLAN_WAKEUP_LINK_CHANGE); |
| } |
| |
| if (wowlan->any) { |
| wowlan_config_cmd->wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
| IWL_WOWLAN_WAKEUP_LINK_CHANGE | |
| IWL_WOWLAN_WAKEUP_RX_FRAME | |
| IWL_WOWLAN_WAKEUP_BCN_FILTERING); |
| } |
| |
| return 0; |
| } |
| |
| static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| bool unified = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| struct wowlan_key_reprogram_data key_data = {}; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| u8 cmd_ver; |
| size_t cmd_size; |
| |
| if (!unified) { |
| /* |
| * if we have to configure keys, call ieee80211_iter_keys(), |
| * as we need non-atomic context in order to take the |
| * required locks. |
| */ |
| /* |
| * Note that currently we don't use CMD_ASYNC in the iterator. |
| * In case of key_data.configure_keys, all the configured |
| * commands are SYNC, and iwl_mvm_wowlan_program_keys() will |
| * take care of locking/unlocking mvm->mutex. |
| */ |
| ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, |
| &key_data); |
| |
| if (key_data.error) |
| return -EIO; |
| } |
| |
| ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif); |
| if (ret) |
| return ret; |
| |
| if (!fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { |
| int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM, |
| IWL_FW_CMD_VER_UNKNOWN); |
| struct wowlan_key_tkip_data tkip_data = {}; |
| int size; |
| |
| if (ver == 2) { |
| size = sizeof(tkip_data.tkip); |
| tkip_data.tkip.sta_id = |
| cpu_to_le32(mvmvif->deflink.ap_sta_id); |
| } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) { |
| size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1); |
| } else { |
| WARN_ON_ONCE(1); |
| return -EINVAL; |
| } |
| |
| ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data, |
| &tkip_data); |
| |
| if (tkip_data.have_tkip_keys) { |
| /* send relevant data according to CMD version */ |
| ret = iwl_mvm_send_cmd_pdu(mvm, |
| WOWLAN_TKIP_PARAM, |
| CMD_ASYNC, size, |
| &tkip_data.tkip); |
| if (ret) |
| return ret; |
| } |
| } |
| |
| /* configure rekey data only if offloaded rekey is supported (d3) */ |
| if (mvmvif->rekey_data.valid) { |
| struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {}; |
| struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = |
| &kek_kck_cmd; |
| struct wowlan_key_gtk_type_iter gtk_type_data = { |
| .kek_kck_cmd = _kek_kck_cmd, |
| }; |
| |
| cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, |
| WOWLAN_KEK_KCK_MATERIAL, |
| IWL_FW_CMD_VER_UNKNOWN); |
| if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 && |
| cmd_ver != IWL_FW_CMD_VER_UNKNOWN)) |
| return -EINVAL; |
| |
| ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter, |
| >k_type_data); |
| |
| memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, |
| mvmvif->rekey_data.kck_len); |
| kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len); |
| memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, |
| mvmvif->rekey_data.kek_len); |
| kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len); |
| kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; |
| kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm); |
| kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id); |
| |
| if (cmd_ver == 4) { |
| cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4); |
| } else { |
| if (cmd_ver == 3) |
| cmd_size = |
| sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3); |
| else |
| cmd_size = |
| sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2); |
| /* skip the sta_id at the beginning */ |
| _kek_kck_cmd = (void *) |
| ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id)); |
| } |
| |
| IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n", |
| mvmvif->rekey_data.akm); |
| |
| ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL, |
| CMD_ASYNC, cmd_size, _kek_kck_cmd); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| iwl_mvm_wowlan_config(struct iwl_mvm *mvm, |
| struct cfg80211_wowlan *wowlan, |
| struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
| struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
| struct ieee80211_sta *ap_sta) |
| { |
| int ret; |
| bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| |
| mvm->offload_tid = wowlan_config_cmd->offloading_tid; |
| |
| if (!unified_image) { |
| ret = iwl_mvm_switch_to_d3(mvm); |
| if (ret) |
| return ret; |
| |
| ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); |
| if (ret) |
| return ret; |
| } |
| |
| ret = iwl_mvm_wowlan_config_key_params(mvm, vif); |
| if (ret) |
| return ret; |
| |
| ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
| sizeof(*wowlan_config_cmd), |
| wowlan_config_cmd); |
| if (ret) |
| return ret; |
| |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) |
| ret = iwl_mvm_send_patterns(mvm, vif, wowlan); |
| else |
| ret = iwl_mvm_send_patterns_v1(mvm, wowlan); |
| if (ret) |
| return ret; |
| |
| return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0); |
| } |
| |
| static int |
| iwl_mvm_netdetect_config(struct iwl_mvm *mvm, |
| struct cfg80211_wowlan *wowlan, |
| struct cfg80211_sched_scan_request *nd_config, |
| struct ieee80211_vif *vif) |
| { |
| int ret; |
| bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| |
| if (!unified_image) { |
| ret = iwl_mvm_switch_to_d3(mvm); |
| if (ret) |
| return ret; |
| } else { |
| /* In theory, we wouldn't have to stop a running sched |
| * scan in order to start another one (for |
| * net-detect). But in practice this doesn't seem to |
| * work properly, so stop any running sched_scan now. |
| */ |
| ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
| if (ret) |
| return ret; |
| } |
| |
| ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, |
| IWL_MVM_SCAN_NETDETECT); |
| if (ret) |
| return ret; |
| |
| if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) |
| return -EBUSY; |
| |
| /* save the sched scan matchsets... */ |
| if (nd_config->n_match_sets) { |
| mvm->nd_match_sets = kmemdup(nd_config->match_sets, |
| sizeof(*nd_config->match_sets) * |
| nd_config->n_match_sets, |
| GFP_KERNEL); |
| if (mvm->nd_match_sets) |
| mvm->n_nd_match_sets = nd_config->n_match_sets; |
| } |
| |
| /* ...and the sched scan channels for later reporting */ |
| mvm->nd_channels = kmemdup(nd_config->channels, |
| sizeof(*nd_config->channels) * |
| nd_config->n_channels, |
| GFP_KERNEL); |
| if (mvm->nd_channels) |
| mvm->n_nd_channels = nd_config->n_channels; |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_free_nd(struct iwl_mvm *mvm) |
| { |
| kfree(mvm->nd_match_sets); |
| mvm->nd_match_sets = NULL; |
| mvm->n_nd_match_sets = 0; |
| kfree(mvm->nd_channels); |
| mvm->nd_channels = NULL; |
| mvm->n_nd_channels = 0; |
| } |
| |
| static int __iwl_mvm_suspend(struct ieee80211_hw *hw, |
| struct cfg80211_wowlan *wowlan, |
| bool test) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct ieee80211_vif *vif = NULL; |
| struct iwl_mvm_vif *mvmvif = NULL; |
| struct ieee80211_sta *ap_sta = NULL; |
| struct iwl_d3_manager_config d3_cfg_cmd_data = { |
| /* |
| * Program the minimum sleep time to 10 seconds, as many |
| * platforms have issues processing a wakeup signal while |
| * still being in the process of suspending. |
| */ |
| .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), |
| }; |
| struct iwl_host_cmd d3_cfg_cmd = { |
| .id = D3_CONFIG_CMD, |
| .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, |
| .data[0] = &d3_cfg_cmd_data, |
| .len[0] = sizeof(d3_cfg_cmd_data), |
| }; |
| int ret; |
| int len __maybe_unused; |
| bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| |
| if (!wowlan) { |
| /* |
| * mac80211 shouldn't get here, but for D3 test |
| * it doesn't warrant a warning |
| */ |
| WARN_ON(!test); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| |
| set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); |
| |
| synchronize_net(); |
| |
| vif = iwl_mvm_get_bss_vif(mvm); |
| if (IS_ERR_OR_NULL(vif)) { |
| ret = 1; |
| goto out_noreset; |
| } |
| |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) { |
| /* if we're not associated, this must be netdetect */ |
| if (!wowlan->nd_config) { |
| ret = 1; |
| goto out_noreset; |
| } |
| |
| ret = iwl_mvm_netdetect_config( |
| mvm, wowlan, wowlan->nd_config, vif); |
| if (ret) |
| goto out; |
| |
| mvm->net_detect = true; |
| } else { |
| struct iwl_wowlan_config_cmd wowlan_config_cmd = { |
| .offloading_tid = 0, |
| }; |
| |
| wowlan_config_cmd.sta_id = mvmvif->deflink.ap_sta_id; |
| |
| ap_sta = rcu_dereference_protected( |
| mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id], |
| lockdep_is_held(&mvm->mutex)); |
| if (IS_ERR_OR_NULL(ap_sta)) { |
| ret = -EINVAL; |
| goto out_noreset; |
| } |
| |
| ret = iwl_mvm_sta_ensure_queue( |
| mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]); |
| if (ret) |
| goto out_noreset; |
| |
| ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
| vif, mvmvif, ap_sta); |
| if (ret) |
| goto out_noreset; |
| ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
| vif, mvmvif, ap_sta); |
| if (ret) |
| goto out; |
| |
| mvm->net_detect = false; |
| } |
| |
| ret = iwl_mvm_power_update_device(mvm); |
| if (ret) |
| goto out; |
| |
| ret = iwl_mvm_power_update_mac(mvm); |
| if (ret) |
| goto out; |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| if (mvm->d3_wake_sysassert) |
| d3_cfg_cmd_data.wakeup_flags |= |
| cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); |
| #endif |
| |
| /* |
| * Prior to 9000 device family the driver needs to stop the dbg |
| * recording before entering D3. In later devices the FW stops the |
| * recording automatically. |
| */ |
| if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) |
| iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); |
| |
| mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; |
| |
| /* must be last -- this switches firmware state */ |
| ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); |
| if (ret) |
| goto out; |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); |
| if (len >= sizeof(u32)) { |
| mvm->d3_test_pme_ptr = |
| le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); |
| } |
| #endif |
| iwl_free_resp(&d3_cfg_cmd); |
| |
| clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| |
| ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); |
| out: |
| if (ret < 0) { |
| iwl_mvm_free_nd(mvm); |
| |
| if (!unified_image) { |
| if (mvm->fw_restart > 0) { |
| mvm->fw_restart--; |
| ieee80211_restart_hw(mvm->hw); |
| } |
| } |
| |
| clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); |
| } |
| out_noreset: |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| iwl_mvm_pause_tcm(mvm, true); |
| |
| iwl_fw_runtime_suspend(&mvm->fwrt); |
| |
| return __iwl_mvm_suspend(hw, wowlan, false); |
| } |
| |
| struct iwl_multicast_key_data { |
| u8 key[WOWLAN_KEY_MAX_SIZE]; |
| u8 len; |
| u8 flags; |
| u8 id; |
| u8 ipn[6]; |
| }; |
| |
| /* converted data from the different status responses */ |
| struct iwl_wowlan_status_data { |
| u64 replay_ctr; |
| u32 num_of_gtk_rekeys; |
| u32 received_beacons; |
| u32 wakeup_reasons; |
| u32 wake_packet_length; |
| u32 wake_packet_bufsize; |
| u16 pattern_number; |
| u16 non_qos_seq_ctr; |
| u16 qos_seq_ctr[8]; |
| u8 tid_tear_down; |
| |
| struct { |
| /* including RX MIC key for TKIP */ |
| u8 key[WOWLAN_KEY_MAX_SIZE]; |
| u8 len; |
| u8 flags; |
| u8 id; |
| } gtk[WOWLAN_GTK_KEYS_NUM]; |
| |
| struct { |
| /* |
| * We store both the TKIP and AES representations |
| * coming from the firmware because we decode the |
| * data from there before we iterate the keys and |
| * know which one we need. |
| */ |
| struct { |
| struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; |
| } tkip, aes; |
| |
| /* |
| * We use -1 for when we have valid data but don't know |
| * the key ID from firmware, and thus it needs to be |
| * installed with the last key (depending on rekeying). |
| */ |
| s8 key_id; |
| bool valid; |
| } gtk_seq[2]; |
| |
| struct { |
| /* Same as above */ |
| struct { |
| struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; |
| u64 tx_pn; |
| } tkip, aes; |
| } ptk; |
| |
| struct iwl_multicast_key_data igtk; |
| struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM]; |
| |
| u8 *wake_packet; |
| }; |
| |
| static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_wowlan_status_data *status) |
| { |
| struct sk_buff *pkt = NULL; |
| struct cfg80211_wowlan_wakeup wakeup = { |
| .pattern_idx = -1, |
| }; |
| struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; |
| u32 reasons = status->wakeup_reasons; |
| |
| if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { |
| wakeup_report = NULL; |
| goto report; |
| } |
| |
| pm_wakeup_event(mvm->dev, 0); |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) |
| wakeup.magic_pkt = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) |
| wakeup.pattern_idx = |
| status->pattern_number; |
| |
| if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | |
| IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) |
| wakeup.disconnect = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) |
| wakeup.gtk_rekey_failure = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
| wakeup.rfkill_release = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) |
| wakeup.eap_identity_req = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) |
| wakeup.four_way_handshake = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) |
| wakeup.tcp_connlost = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) |
| wakeup.tcp_nomoretokens = true; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) |
| wakeup.tcp_match = true; |
| |
| if (status->wake_packet) { |
| int pktsize = status->wake_packet_bufsize; |
| int pktlen = status->wake_packet_length; |
| const u8 *pktdata = status->wake_packet; |
| const struct ieee80211_hdr *hdr = (const void *)pktdata; |
| int truncated = pktlen - pktsize; |
| |
| /* this would be a firmware bug */ |
| if (WARN_ON_ONCE(truncated < 0)) |
| truncated = 0; |
| |
| if (ieee80211_is_data(hdr->frame_control)) { |
| int hdrlen = ieee80211_hdrlen(hdr->frame_control); |
| int ivlen = 0, icvlen = 4; /* also FCS */ |
| |
| pkt = alloc_skb(pktsize, GFP_KERNEL); |
| if (!pkt) |
| goto report; |
| |
| skb_put_data(pkt, pktdata, hdrlen); |
| pktdata += hdrlen; |
| pktsize -= hdrlen; |
| |
| if (ieee80211_has_protected(hdr->frame_control)) { |
| /* |
| * This is unlocked and using gtk_i(c)vlen, |
| * but since everything is under RTNL still |
| * that's not really a problem - changing |
| * it would be difficult. |
| */ |
| if (is_multicast_ether_addr(hdr->addr1)) { |
| ivlen = mvm->gtk_ivlen; |
| icvlen += mvm->gtk_icvlen; |
| } else { |
| ivlen = mvm->ptk_ivlen; |
| icvlen += mvm->ptk_icvlen; |
| } |
| } |
| |
| /* if truncated, FCS/ICV is (partially) gone */ |
| if (truncated >= icvlen) { |
| icvlen = 0; |
| truncated -= icvlen; |
| } else { |
| icvlen -= truncated; |
| truncated = 0; |
| } |
| |
| pktsize -= ivlen + icvlen; |
| pktdata += ivlen; |
| |
| skb_put_data(pkt, pktdata, pktsize); |
| |
| if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
| goto report; |
| wakeup.packet = pkt->data; |
| wakeup.packet_present_len = pkt->len; |
| wakeup.packet_len = pkt->len - truncated; |
| wakeup.packet_80211 = false; |
| } else { |
| int fcslen = 4; |
| |
| if (truncated >= 4) { |
| truncated -= 4; |
| fcslen = 0; |
| } else { |
| fcslen -= truncated; |
| truncated = 0; |
| } |
| pktsize -= fcslen; |
| wakeup.packet = status->wake_packet; |
| wakeup.packet_present_len = pktsize; |
| wakeup.packet_len = pktlen - truncated; |
| wakeup.packet_80211 = true; |
| } |
| } |
| |
| report: |
| ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); |
| kfree_skb(pkt); |
| } |
| |
| static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq) |
| { |
| u64 pn = le64_to_cpu(le_pn); |
| |
| seq->ccmp.pn[0] = pn >> 40; |
| seq->ccmp.pn[1] = pn >> 32; |
| seq->ccmp.pn[2] = pn >> 24; |
| seq->ccmp.pn[3] = pn >> 16; |
| seq->ccmp.pn[4] = pn >> 8; |
| seq->ccmp.pn[5] = pn; |
| } |
| |
| static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, |
| struct ieee80211_key_seq *seq) |
| { |
| iwl_mvm_le64_to_aes_seq(sc->pn, seq); |
| } |
| |
| static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq) |
| { |
| u64 pn = le64_to_cpu(le_pn); |
| |
| seq->tkip.iv16 = (u16)pn; |
| seq->tkip.iv32 = (u32)(pn >> 16); |
| } |
| |
| static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, |
| struct ieee80211_key_seq *seq) |
| { |
| seq->tkip.iv32 = le32_to_cpu(sc->iv32); |
| seq->tkip.iv16 = le16_to_cpu(sc->iv16); |
| } |
| |
| static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key, |
| struct ieee80211_key_seq *seq) |
| { |
| int tid; |
| |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) |
| ieee80211_set_key_rx_seq(key, tid, &seq[tid]); |
| } |
| |
| static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm, |
| struct iwl_wowlan_status_data *status, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key) |
| { |
| struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| struct iwl_mvm_key_pn *ptk_pn; |
| int tid; |
| |
| iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq); |
| |
| if (!iwl_mvm_has_new_rx_api(mvm)) |
| return; |
| |
| |
| rcu_read_lock(); |
| ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); |
| if (WARN_ON(!ptk_pn)) { |
| rcu_read_unlock(); |
| return; |
| } |
| |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { |
| int i; |
| |
| for (i = 1; i < mvm->trans->num_rx_queues; i++) |
| memcpy(ptk_pn->q[i].pn[tid], |
| status->ptk.aes.seq[tid].ccmp.pn, |
| IEEE80211_CCMP_PN_LEN); |
| } |
| rcu_read_unlock(); |
| } |
| |
| static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status, |
| union iwl_all_tsc_rsc *sc) |
| { |
| int i; |
| |
| BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); |
| BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); |
| |
| /* GTK RX counters */ |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i], |
| &status->gtk_seq[0].tkip.seq[i]); |
| iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i], |
| &status->gtk_seq[0].aes.seq[i]); |
| } |
| status->gtk_seq[0].valid = true; |
| status->gtk_seq[0].key_id = -1; |
| |
| /* PTK TX counter */ |
| status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) | |
| ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16); |
| status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn); |
| |
| /* PTK RX counters */ |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i], |
| &status->ptk.tkip.seq[i]); |
| iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i], |
| &status->ptk.aes.seq[i]); |
| } |
| } |
| |
| static void |
| iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status, |
| struct iwl_wowlan_all_rsc_tsc_v5 *sc, |
| unsigned int idx, unsigned int key_id) |
| { |
| int tid; |
| |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { |
| iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid], |
| &status->gtk_seq[idx].tkip.seq[tid]); |
| iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid], |
| &status->gtk_seq[idx].aes.seq[tid]); |
| } |
| |
| status->gtk_seq[idx].valid = true; |
| status->gtk_seq[idx].key_id = key_id; |
| } |
| |
| static void |
| iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status, |
| struct iwl_wowlan_all_rsc_tsc_v5 *sc) |
| { |
| int i, tid; |
| |
| BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); |
| BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); |
| BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq)); |
| |
| /* GTK RX counters */ |
| for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) { |
| u8 entry = sc->mcast_key_id_map[i]; |
| |
| if (entry < ARRAY_SIZE(sc->mcast_rsc)) |
| iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc, |
| entry, i); |
| } |
| |
| /* PTK TX counters not needed, assigned in device */ |
| |
| /* PTK RX counters */ |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { |
| iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid], |
| &status->ptk.tkip.seq[tid]); |
| iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid], |
| &status->ptk.aes.seq[tid]); |
| } |
| } |
| |
| static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key, |
| struct iwl_wowlan_status_data *status, |
| int idx) |
| { |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq); |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq); |
| break; |
| default: |
| WARN_ON(1); |
| } |
| } |
| |
| static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, |
| struct iwl_wowlan_status_data *status, |
| bool installed) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) { |
| if (!status->gtk_seq[i].valid) |
| continue; |
| |
| /* Handle the case where we know the key ID */ |
| if (status->gtk_seq[i].key_id == key->keyidx) { |
| s8 new_key_id = -1; |
| |
| if (status->num_of_gtk_rekeys) |
| new_key_id = status->gtk[0].flags & |
| IWL_WOWLAN_GTK_IDX_MASK; |
| |
| /* Don't install a new key's value to an old key */ |
| if (new_key_id != key->keyidx) |
| iwl_mvm_set_key_rx_seq_idx(key, status, i); |
| continue; |
| } |
| |
| /* handle the case where we didn't, last key only */ |
| if (status->gtk_seq[i].key_id == -1 && |
| (!status->num_of_gtk_rekeys || installed)) |
| iwl_mvm_set_key_rx_seq_idx(key, status, i); |
| } |
| } |
| |
| struct iwl_mvm_d3_gtk_iter_data { |
| struct iwl_mvm *mvm; |
| struct iwl_wowlan_status_data *status; |
| u32 gtk_cipher, igtk_cipher, bigtk_cipher; |
| bool unhandled_cipher, igtk_support, bigtk_support; |
| int num_keys; |
| }; |
| |
| static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_mvm_d3_gtk_iter_data *data = _data; |
| |
| if (data->unhandled_cipher) |
| return; |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| /* ignore WEP completely, nothing to do */ |
| return; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| case WLAN_CIPHER_SUITE_TKIP: |
| /* we support these */ |
| data->gtk_cipher = key->cipher; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| /* we support these */ |
| if (data->igtk_support && |
| (key->keyidx == 4 || key->keyidx == 5)) { |
| data->igtk_cipher = key->cipher; |
| } else if (data->bigtk_support && |
| (key->keyidx == 6 || key->keyidx == 7)) { |
| data->bigtk_cipher = key->cipher; |
| } else { |
| data->unhandled_cipher = true; |
| return; |
| } |
| break; |
| default: |
| /* everything else - disconnect from AP */ |
| data->unhandled_cipher = true; |
| return; |
| } |
| |
| data->num_keys++; |
| } |
| |
| static void |
| iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key, |
| struct ieee80211_key_seq *seq, u32 cipher) |
| { |
| switch (cipher) { |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn)); |
| memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn)); |
| break; |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn)); |
| memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn)); |
| break; |
| } |
| } |
| |
| static void |
| iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status, |
| struct ieee80211_key_conf *key, |
| struct iwl_multicast_key_data *key_data) |
| { |
| if (status->num_of_gtk_rekeys && key_data->len) { |
| /* remove rekeyed key */ |
| ieee80211_remove_key(key); |
| } else { |
| struct ieee80211_key_seq seq; |
| |
| iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, |
| &seq, |
| key->cipher); |
| ieee80211_set_key_rx_seq(key, 0, &seq); |
| } |
| } |
| |
| static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_mvm_d3_gtk_iter_data *data = _data; |
| struct iwl_wowlan_status_data *status = data->status; |
| s8 keyidx; |
| |
| if (data->unhandled_cipher) |
| return; |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| /* ignore WEP completely, nothing to do */ |
| return; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| if (sta) { |
| atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn); |
| iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key); |
| return; |
| } |
| fallthrough; |
| case WLAN_CIPHER_SUITE_TKIP: |
| if (sta) { |
| atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn); |
| iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq); |
| return; |
| } |
| keyidx = key->keyidx; |
| /* The current key is always sent by the FW, even if it wasn't |
| * rekeyed during D3. |
| * We remove an existing key if it has the same index as |
| * a new key |
| */ |
| if (status->num_of_gtk_rekeys && |
| ((status->gtk[0].len && keyidx == status->gtk[0].id) || |
| (status->gtk[1].len && keyidx == status->gtk[1].id))) { |
| ieee80211_remove_key(key); |
| } else { |
| iwl_mvm_set_key_rx_seq(key, data->status, false); |
| } |
| break; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| if (key->keyidx == 4 || key->keyidx == 5) { |
| iwl_mvm_d3_update_igtk_bigtk(status, key, |
| &status->igtk); |
| } |
| if (key->keyidx == 6 || key->keyidx == 7) { |
| u8 idx = key->keyidx == status->bigtk[1].id; |
| |
| iwl_mvm_d3_update_igtk_bigtk(status, key, |
| &status->bigtk[idx]); |
| } |
| } |
| } |
| |
| static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status, |
| struct ieee80211_vif *vif, |
| struct iwl_mvm *mvm, u32 gtk_cipher) |
| { |
| int i; |
| struct ieee80211_key_conf *key; |
| struct { |
| struct ieee80211_key_conf conf; |
| u8 key[32]; |
| } conf = { |
| .conf.cipher = gtk_cipher, |
| }; |
| |
| BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP); |
| BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP); |
| BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256); |
| BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP); |
| BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key)); |
| |
| switch (gtk_cipher) { |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_GCMP: |
| conf.conf.keylen = WLAN_KEY_LEN_CCMP; |
| break; |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| conf.conf.keylen = WLAN_KEY_LEN_GCMP_256; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| conf.conf.keylen = WLAN_KEY_LEN_TKIP; |
| break; |
| default: |
| WARN_ON(1); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(status->gtk); i++) { |
| if (!status->gtk[i].len) |
| continue; |
| |
| conf.conf.keyidx = status->gtk[i].id; |
| IWL_DEBUG_WOWLAN(mvm, |
| "Received from FW GTK cipher %d, key index %d\n", |
| conf.conf.cipher, conf.conf.keyidx); |
| memcpy(conf.conf.key, status->gtk[i].key, |
| sizeof(status->gtk[i].key)); |
| |
| key = ieee80211_gtk_rekey_add(vif, &conf.conf); |
| if (IS_ERR(key)) |
| return false; |
| iwl_mvm_set_key_rx_seq_idx(key, status, i); |
| } |
| |
| return true; |
| } |
| |
| static bool |
| iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status, |
| struct ieee80211_vif *vif, u32 cipher, |
| struct iwl_multicast_key_data *key_data) |
| { |
| struct ieee80211_key_conf *key_config; |
| struct { |
| struct ieee80211_key_conf conf; |
| u8 key[WOWLAN_KEY_MAX_SIZE]; |
| } conf = { |
| .conf.cipher = cipher, |
| .conf.keyidx = key_data->id, |
| }; |
| struct ieee80211_key_seq seq; |
| |
| if (!key_data->len) |
| return true; |
| |
| iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher); |
| |
| switch (cipher) { |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256; |
| break; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256; |
| break; |
| default: |
| WARN_ON(1); |
| } |
| BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key)); |
| memcpy(conf.conf.key, key_data->key, conf.conf.keylen); |
| |
| key_config = ieee80211_gtk_rekey_add(vif, &conf.conf); |
| if (IS_ERR(key_config)) |
| return false; |
| ieee80211_set_key_rx_seq(key_config, 0, &seq); |
| |
| if (key_config->keyidx == 4 || key_config->keyidx == 5) { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int link_id = vif->active_links ? __ffs(vif->active_links) : 0; |
| struct iwl_mvm_vif_link_info *mvm_link = |
| mvmvif->link[link_id]; |
| |
| mvm_link->igtk = key_config; |
| } |
| |
| return true; |
| } |
| |
| static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm) |
| { |
| u8 notif_ver; |
| |
| if (!fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) |
| return 6; |
| |
| /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ |
| notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, |
| WOWLAN_GET_STATUSES, 0); |
| if (!notif_ver) |
| notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, |
| WOWLAN_GET_STATUSES, 7); |
| |
| return notif_ver; |
| } |
| |
| static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_wowlan_status_data *status) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm_d3_gtk_iter_data gtkdata = { |
| .mvm = mvm, |
| .status = status, |
| }; |
| int i; |
| |
| u32 disconnection_reasons = |
| IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | |
| IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; |
| |
| if (!status || !vif->bss_conf.bssid) |
| return false; |
| |
| if (status->wakeup_reasons & disconnection_reasons) |
| return false; |
| |
| if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 || |
| iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| WOWLAN_INFO_NOTIFICATION, |
| 0)) |
| gtkdata.igtk_support = true; |
| |
| if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| WOWLAN_INFO_NOTIFICATION, |
| 0) >= 3) |
| gtkdata.bigtk_support = true; |
| |
| /* find last GTK that we used initially, if any */ |
| ieee80211_iter_keys(mvm->hw, vif, |
| iwl_mvm_d3_find_last_keys, >kdata); |
| /* not trying to keep connections with MFP/unhandled ciphers */ |
| if (gtkdata.unhandled_cipher) |
| return false; |
| if (!gtkdata.num_keys) |
| goto out; |
| |
| /* |
| * invalidate all other GTKs that might still exist and update |
| * the one that we used |
| */ |
| ieee80211_iter_keys(mvm->hw, vif, |
| iwl_mvm_d3_update_keys, >kdata); |
| |
| if (status->num_of_gtk_rekeys) { |
| __be64 replay_ctr = cpu_to_be64(status->replay_ctr); |
| |
| IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n", |
| status->num_of_gtk_rekeys); |
| |
| if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher)) |
| return false; |
| |
| if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, |
| gtkdata.igtk_cipher, |
| &status->igtk)) |
| return false; |
| |
| for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) { |
| if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, |
| gtkdata.bigtk_cipher, |
| &status->bigtk[i])) |
| return false; |
| } |
| |
| ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, |
| (void *)&replay_ctr, GFP_KERNEL); |
| } |
| |
| out: |
| if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, |
| WOWLAN_GET_STATUSES, 0) < 10) { |
| mvmvif->seqno_valid = true; |
| /* +0x10 because the set API expects next-to-use, not last-used */ |
| mvmvif->seqno = status->non_qos_seq_ctr + 0x10; |
| } |
| |
| return true; |
| } |
| |
| static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, |
| struct iwl_wowlan_gtk_status_v2 *data) |
| { |
| BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key)); |
| BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + |
| sizeof(data->tkip_mic_key) > |
| sizeof(status->gtk[0].key)); |
| |
| status->gtk[0].len = data->key_len; |
| status->gtk[0].flags = data->key_flags; |
| |
| memcpy(status->gtk[0].key, data->key, sizeof(data->key)); |
| |
| /* if it's as long as the TKIP encryption key, copy MIC key */ |
| if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) |
| memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, |
| data->tkip_mic_key, sizeof(data->tkip_mic_key)); |
| } |
| |
| static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, |
| struct iwl_wowlan_gtk_status_v3 *data) |
| { |
| int data_idx, status_idx = 0; |
| |
| BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key)); |
| BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + |
| sizeof(data[0].tkip_mic_key) > |
| sizeof(status->gtk[0].key)); |
| BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM); |
| for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) { |
| if (!(data[data_idx].key_len)) |
| continue; |
| status->gtk[status_idx].len = data[data_idx].key_len; |
| status->gtk[status_idx].flags = data[data_idx].key_flags; |
| status->gtk[status_idx].id = status->gtk[status_idx].flags & |
| IWL_WOWLAN_GTK_IDX_MASK; |
| |
| memcpy(status->gtk[status_idx].key, data[data_idx].key, |
| sizeof(data[data_idx].key)); |
| |
| /* if it's as long as the TKIP encryption key, copy MIC key */ |
| if (status->gtk[status_idx].len == |
| NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) |
| memcpy(status->gtk[status_idx].key + |
| NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, |
| data[data_idx].tkip_mic_key, |
| sizeof(data[data_idx].tkip_mic_key)); |
| status_idx++; |
| } |
| } |
| |
| static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, |
| struct iwl_wowlan_igtk_status *data) |
| { |
| int i; |
| |
| BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); |
| BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn)); |
| |
| if (!data->key_len) |
| return; |
| |
| status->igtk.len = data->key_len; |
| status->igtk.flags = data->key_flags; |
| status->igtk.id = u32_get_bits(data->key_flags, |
| IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) |
| + WOWLAN_IGTK_MIN_INDEX; |
| |
| memcpy(status->igtk.key, data->key, sizeof(data->key)); |
| |
| /* mac80211 expects big endian for memcmp() to work, convert */ |
| for (i = 0; i < sizeof(data->ipn); i++) |
| status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1]; |
| } |
| |
| static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status, |
| const struct iwl_wowlan_igtk_status *data) |
| { |
| int data_idx, status_idx = 0; |
| |
| BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM); |
| |
| for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) { |
| if (!data[data_idx].key_len) |
| continue; |
| |
| status->bigtk[status_idx].len = data[data_idx].key_len; |
| status->bigtk[status_idx].flags = data[data_idx].key_flags; |
| status->bigtk[status_idx].id = |
| u32_get_bits(data[data_idx].key_flags, |
| IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) |
| + WOWLAN_BIGTK_MIN_INDEX; |
| |
| BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) < |
| sizeof(data[data_idx].key)); |
| BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) < |
| sizeof(data[data_idx].ipn)); |
| |
| memcpy(status->bigtk[status_idx].key, data[data_idx].key, |
| sizeof(data[data_idx].key)); |
| memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn, |
| sizeof(data[data_idx].ipn)); |
| status_idx++; |
| } |
| } |
| |
| static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, |
| struct iwl_wowlan_info_notif *data, |
| struct iwl_wowlan_status_data *status, |
| u32 len) |
| { |
| u32 i; |
| |
| if (!data) { |
| IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); |
| status = NULL; |
| return; |
| } |
| |
| if (len < sizeof(*data)) { |
| IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); |
| status = NULL; |
| return; |
| } |
| |
| iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); |
| iwl_mvm_convert_gtk_v3(status, data->gtk); |
| iwl_mvm_convert_igtk(status, &data->igtk[0]); |
| iwl_mvm_convert_bigtk(status, data->bigtk); |
| status->replay_ctr = le64_to_cpu(data->replay_ctr); |
| status->pattern_number = le16_to_cpu(data->pattern_number); |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) |
| status->qos_seq_ctr[i] = |
| le16_to_cpu(data->qos_seq_ctr[i]); |
| status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); |
| status->num_of_gtk_rekeys = |
| le32_to_cpu(data->num_of_gtk_rekeys); |
| status->received_beacons = le32_to_cpu(data->received_beacons); |
| status->tid_tear_down = data->tid_tear_down; |
| } |
| |
| static void |
| iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm, |
| struct iwl_wowlan_info_notif_v2 *data, |
| struct iwl_wowlan_status_data *status, |
| u32 len) |
| { |
| u32 i; |
| |
| if (!data) { |
| IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n"); |
| status = NULL; |
| return; |
| } |
| |
| if (len < sizeof(*data)) { |
| IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); |
| status = NULL; |
| return; |
| } |
| |
| iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); |
| iwl_mvm_convert_gtk_v3(status, data->gtk); |
| iwl_mvm_convert_igtk(status, &data->igtk[0]); |
| status->replay_ctr = le64_to_cpu(data->replay_ctr); |
| status->pattern_number = le16_to_cpu(data->pattern_number); |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) |
| status->qos_seq_ctr[i] = |
| le16_to_cpu(data->qos_seq_ctr[i]); |
| status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); |
| status->num_of_gtk_rekeys = |
| le32_to_cpu(data->num_of_gtk_rekeys); |
| status->received_beacons = le32_to_cpu(data->received_beacons); |
| status->tid_tear_down = data->tid_tear_down; |
| } |
| |
| /* Occasionally, templates would be nice. This is one of those times ... */ |
| #define iwl_mvm_parse_wowlan_status_common(_ver) \ |
| static struct iwl_wowlan_status_data * \ |
| iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \ |
| struct iwl_wowlan_status_ ##_ver *data,\ |
| int len) \ |
| { \ |
| struct iwl_wowlan_status_data *status; \ |
| int data_size, i; \ |
| \ |
| if (len < sizeof(*data)) { \ |
| IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ |
| return NULL; \ |
| } \ |
| \ |
| data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \ |
| if (len != sizeof(*data) + data_size) { \ |
| IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ |
| return NULL; \ |
| } \ |
| \ |
| status = kzalloc(sizeof(*status), GFP_KERNEL); \ |
| if (!status) \ |
| return NULL; \ |
| \ |
| /* copy all the common fields */ \ |
| status->replay_ctr = le64_to_cpu(data->replay_ctr); \ |
| status->pattern_number = le16_to_cpu(data->pattern_number); \ |
| status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \ |
| for (i = 0; i < 8; i++) \ |
| status->qos_seq_ctr[i] = \ |
| le16_to_cpu(data->qos_seq_ctr[i]); \ |
| status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \ |
| status->num_of_gtk_rekeys = \ |
| le32_to_cpu(data->num_of_gtk_rekeys); \ |
| status->received_beacons = le32_to_cpu(data->received_beacons); \ |
| status->wake_packet_length = \ |
| le32_to_cpu(data->wake_packet_length); \ |
| status->wake_packet_bufsize = \ |
| le32_to_cpu(data->wake_packet_bufsize); \ |
| if (status->wake_packet_bufsize) { \ |
| status->wake_packet = \ |
| kmemdup(data->wake_packet, \ |
| status->wake_packet_bufsize, \ |
| GFP_KERNEL); \ |
| if (!status->wake_packet) { \ |
| kfree(status); \ |
| return NULL; \ |
| } \ |
| } else { \ |
| status->wake_packet = NULL; \ |
| } \ |
| \ |
| return status; \ |
| } |
| |
| iwl_mvm_parse_wowlan_status_common(v6) |
| iwl_mvm_parse_wowlan_status_common(v7) |
| iwl_mvm_parse_wowlan_status_common(v9) |
| iwl_mvm_parse_wowlan_status_common(v12) |
| |
| static struct iwl_wowlan_status_data * |
| iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) |
| { |
| struct iwl_wowlan_status_data *status; |
| struct iwl_wowlan_get_status_cmd get_status_cmd = { |
| .sta_id = cpu_to_le32(sta_id), |
| }; |
| struct iwl_host_cmd cmd = { |
| .id = WOWLAN_GET_STATUSES, |
| .flags = CMD_WANT_SKB, |
| .data = { &get_status_cmd, }, |
| .len = { sizeof(get_status_cmd), }, |
| }; |
| int ret, len; |
| u8 notif_ver; |
| u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, |
| IWL_FW_CMD_VER_UNKNOWN); |
| |
| if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) |
| cmd.len[0] = 0; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret) { |
| IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); |
| return ERR_PTR(ret); |
| } |
| |
| len = iwl_rx_packet_payload_len(cmd.resp_pkt); |
| |
| /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ |
| notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm); |
| |
| if (notif_ver < 7) { |
| struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; |
| |
| status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len); |
| if (!status) |
| goto out_free_resp; |
| |
| BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > |
| sizeof(status->gtk[0].key)); |
| BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + |
| sizeof(v6->gtk.tkip_mic_key) > |
| sizeof(status->gtk[0].key)); |
| |
| /* copy GTK info to the right place */ |
| memcpy(status->gtk[0].key, v6->gtk.decrypt_key, |
| sizeof(v6->gtk.decrypt_key)); |
| memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, |
| v6->gtk.tkip_mic_key, |
| sizeof(v6->gtk.tkip_mic_key)); |
| |
| iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc); |
| |
| /* hardcode the key length to 16 since v6 only supports 16 */ |
| status->gtk[0].len = 16; |
| |
| /* |
| * The key index only uses 2 bits (values 0 to 3) and |
| * we always set bit 7 which means this is the |
| * currently used key. |
| */ |
| status->gtk[0].flags = v6->gtk.key_index | BIT(7); |
| } else if (notif_ver == 7) { |
| struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data; |
| |
| status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len); |
| if (!status) |
| goto out_free_resp; |
| |
| iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc); |
| iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]); |
| iwl_mvm_convert_igtk(status, &v7->igtk[0]); |
| } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) { |
| struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data; |
| |
| /* these three command versions have same layout and size, the |
| * difference is only in a few not used (reserved) fields. |
| */ |
| status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len); |
| if (!status) |
| goto out_free_resp; |
| |
| iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc); |
| iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]); |
| iwl_mvm_convert_igtk(status, &v9->igtk[0]); |
| |
| status->tid_tear_down = v9->tid_tear_down; |
| } else if (notif_ver == 12) { |
| struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data; |
| |
| status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len); |
| if (!status) |
| goto out_free_resp; |
| |
| iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc); |
| iwl_mvm_convert_gtk_v3(status, v12->gtk); |
| iwl_mvm_convert_igtk(status, &v12->igtk[0]); |
| |
| status->tid_tear_down = v12->tid_tear_down; |
| } else { |
| IWL_ERR(mvm, |
| "Firmware advertises unknown WoWLAN status response %d!\n", |
| notif_ver); |
| status = NULL; |
| } |
| |
| out_free_resp: |
| iwl_free_resp(&cmd); |
| return status; |
| } |
| |
| /* releases the MVM mutex */ |
| static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_wowlan_status_data *status) |
| { |
| int i; |
| bool keep = false; |
| struct iwl_mvm_sta *mvm_ap_sta; |
| |
| if (!status) |
| goto out_unlock; |
| |
| IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n", |
| status->wakeup_reasons); |
| |
| /* still at hard-coded place 0 for D3 image */ |
| mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0); |
| if (!mvm_ap_sta) |
| goto out_unlock; |
| |
| for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| u16 seq = status->qos_seq_ctr[i]; |
| /* firmware stores last-used value, we store next value */ |
| seq += 0x10; |
| mvm_ap_sta->tid_data[i].seq_number = seq; |
| } |
| |
| if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { |
| i = mvm->offload_tid; |
| iwl_trans_set_q_ptrs(mvm->trans, |
| mvm_ap_sta->tid_data[i].txq_id, |
| mvm_ap_sta->tid_data[i].seq_number >> 4); |
| } |
| |
| iwl_mvm_report_wakeup_reasons(mvm, vif, status); |
| |
| keep = iwl_mvm_setup_connection_keep(mvm, vif, status); |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| return keep; |
| } |
| |
| #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ |
| IWL_SCAN_MAX_PROFILES) |
| |
| struct iwl_mvm_nd_results { |
| u32 matched_profiles; |
| u8 matches[ND_QUERY_BUF_LEN]; |
| }; |
| |
| static int |
| iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, |
| struct iwl_mvm_nd_results *results) |
| { |
| struct iwl_scan_offload_match_info *query; |
| struct iwl_host_cmd cmd = { |
| .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, |
| .flags = CMD_WANT_SKB, |
| }; |
| int ret, len; |
| size_t query_len, matches_len; |
| int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw); |
| |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret) { |
| IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); |
| return ret; |
| } |
| |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { |
| query_len = sizeof(struct iwl_scan_offload_match_info); |
| matches_len = sizeof(struct iwl_scan_offload_profile_match) * |
| max_profiles; |
| } else { |
| query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); |
| matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * |
| max_profiles; |
| } |
| |
| len = iwl_rx_packet_payload_len(cmd.resp_pkt); |
| if (len < query_len) { |
| IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); |
| ret = -EIO; |
| goto out_free_resp; |
| } |
| |
| query = (void *)cmd.resp_pkt->data; |
| |
| results->matched_profiles = le32_to_cpu(query->matched_profiles); |
| memcpy(results->matches, query->matches, matches_len); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); |
| #endif |
| |
| out_free_resp: |
| iwl_free_resp(&cmd); |
| return ret; |
| } |
| |
| static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, |
| struct iwl_mvm_nd_results *results, |
| int idx) |
| { |
| int n_chans = 0, i; |
| |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { |
| struct iwl_scan_offload_profile_match *matches = |
| (void *)results->matches; |
| |
| for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) |
| n_chans += hweight8(matches[idx].matching_channels[i]); |
| } else { |
| struct iwl_scan_offload_profile_match_v1 *matches = |
| (void *)results->matches; |
| |
| for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) |
| n_chans += hweight8(matches[idx].matching_channels[i]); |
| } |
| |
| return n_chans; |
| } |
| |
| static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, |
| struct iwl_mvm_nd_results *results, |
| struct cfg80211_wowlan_nd_match *match, |
| int idx) |
| { |
| int i; |
| |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { |
| struct iwl_scan_offload_profile_match *matches = |
| (void *)results->matches; |
| |
| for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) |
| if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) |
| match->channels[match->n_channels++] = |
| mvm->nd_channels[i]->center_freq; |
| } else { |
| struct iwl_scan_offload_profile_match_v1 *matches = |
| (void *)results->matches; |
| |
| for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) |
| if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) |
| match->channels[match->n_channels++] = |
| mvm->nd_channels[i]->center_freq; |
| } |
| } |
| |
| /** |
| * enum iwl_d3_notif - d3 notifications |
| * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received |
| * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received |
| * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received |
| * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received |
| * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received |
| */ |
| enum iwl_d3_notif { |
| IWL_D3_NOTIF_WOWLAN_INFO = BIT(0), |
| IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1), |
| IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2), |
| IWL_D3_ND_MATCH_INFO = BIT(3), |
| IWL_D3_NOTIF_D3_END_NOTIF = BIT(4) |
| }; |
| |
| /* manage d3 resume data */ |
| struct iwl_d3_data { |
| struct iwl_wowlan_status_data *status; |
| bool test; |
| u32 d3_end_flags; |
| u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */ |
| u32 notif_received; /* bitmap - see &enum iwl_d3_notif */ |
| struct iwl_mvm_nd_results *nd_results; |
| bool nd_results_valid; |
| }; |
| |
| static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_d3_data *d3_data) |
| { |
| struct cfg80211_wowlan_nd_info *net_detect = NULL; |
| struct cfg80211_wowlan_wakeup wakeup = { |
| .pattern_idx = -1, |
| }; |
| struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; |
| unsigned long matched_profiles; |
| u32 reasons = 0; |
| int i, n_matches, ret; |
| |
| if (WARN_ON(!d3_data || !d3_data->status)) |
| goto out; |
| |
| reasons = d3_data->status->wakeup_reasons; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
| wakeup.rfkill_release = true; |
| |
| if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) |
| goto out; |
| |
| if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| WOWLAN_INFO_NOTIFICATION, 0)) { |
| IWL_INFO(mvm, "Query FW for ND results\n"); |
| ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results); |
| |
| } else { |
| IWL_INFO(mvm, "Notification based ND results\n"); |
| ret = d3_data->nd_results_valid ? 0 : -1; |
| } |
| |
| if (ret || !d3_data->nd_results->matched_profiles) { |
| wakeup_report = NULL; |
| goto out; |
| } |
| |
| matched_profiles = d3_data->nd_results->matched_profiles; |
| if (mvm->n_nd_match_sets) { |
| n_matches = hweight_long(matched_profiles); |
| } else { |
| IWL_ERR(mvm, "no net detect match information available\n"); |
| n_matches = 0; |
| } |
| |
| net_detect = kzalloc(struct_size(net_detect, matches, n_matches), |
| GFP_KERNEL); |
| if (!net_detect || !n_matches) |
| goto out_report_nd; |
| |
| for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { |
| struct cfg80211_wowlan_nd_match *match; |
| int idx, n_channels = 0; |
| |
| n_channels = iwl_mvm_query_num_match_chans(mvm, |
| d3_data->nd_results, |
| i); |
| |
| match = kzalloc(struct_size(match, channels, n_channels), |
| GFP_KERNEL); |
| if (!match) |
| goto out_report_nd; |
| |
| net_detect->matches[net_detect->n_matches++] = match; |
| |
| /* We inverted the order of the SSIDs in the scan |
| * request, so invert the index here. |
| */ |
| idx = mvm->n_nd_match_sets - i - 1; |
| match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; |
| memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, |
| match->ssid.ssid_len); |
| |
| if (mvm->n_nd_channels < n_channels) |
| continue; |
| |
| iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i); |
| } |
| |
| out_report_nd: |
| wakeup.net_detect = net_detect; |
| out: |
| iwl_mvm_free_nd(mvm); |
| |
| mutex_unlock(&mvm->mutex); |
| ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); |
| |
| if (net_detect) { |
| for (i = 0; i < net_detect->n_matches; i++) |
| kfree(net_detect->matches[i]); |
| kfree(net_detect); |
| } |
| } |
| |
| static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| /* skip the one we keep connection on */ |
| if (data == vif) |
| return; |
| |
| if (vif->type == NL80211_IFTYPE_STATION) |
| ieee80211_resume_disconnect(vif); |
| } |
| |
| static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id) |
| { |
| struct error_table_start { |
| /* cf. struct iwl_error_event_table */ |
| u32 valid; |
| __le32 err_id; |
| } err_info; |
| |
| if (!base) |
| return false; |
| |
| iwl_trans_read_mem_bytes(trans, base, |
| &err_info, sizeof(err_info)); |
| if (err_info.valid && err_id) |
| *err_id = le32_to_cpu(err_info.err_id); |
| |
| return !!err_info.valid; |
| } |
| |
| static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| u32 err_id; |
| |
| /* check for lmac1 error */ |
| if (iwl_mvm_rt_status(mvm->trans, |
| mvm->trans->dbg.lmac_error_event_table[0], |
| &err_id)) { |
| if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) { |
| struct cfg80211_wowlan_wakeup wakeup = { |
| .rfkill_release = true, |
| }; |
| ieee80211_report_wowlan_wakeup(vif, &wakeup, |
| GFP_KERNEL); |
| } |
| return true; |
| } |
| |
| /* check if we have lmac2 set and check for error */ |
| if (iwl_mvm_rt_status(mvm->trans, |
| mvm->trans->dbg.lmac_error_event_table[1], NULL)) |
| return true; |
| |
| /* check for umac error */ |
| if (iwl_mvm_rt_status(mvm->trans, |
| mvm->trans->dbg.umac_error_event_table, NULL)) |
| return true; |
| |
| return false; |
| } |
| |
| /* |
| * This function assumes: |
| * 1. The mutex is already held. |
| * 2. The callee functions unlock the mutex. |
| */ |
| static bool |
| iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_d3_data *d3_data) |
| { |
| lockdep_assert_held(&mvm->mutex); |
| |
| /* if FW uses status notification, status shouldn't be NULL here */ |
| if (!d3_data->status) { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA : |
| mvmvif->deflink.ap_sta_id; |
| |
| d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id); |
| } |
| |
| if (mvm->net_detect) { |
| iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data); |
| } else { |
| bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif, |
| d3_data->status); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| if (keep) |
| mvm->keep_vif = vif; |
| #endif |
| |
| return keep; |
| } |
| return false; |
| } |
| |
| #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \ |
| IWL_WOWLAN_WAKEUP_BY_PATTERN | \ |
| IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\ |
| IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\ |
| IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\ |
| IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD) |
| |
| static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm, |
| struct iwl_wowlan_wake_pkt_notif *notif, |
| struct iwl_wowlan_status_data *status, |
| u32 len) |
| { |
| u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length); |
| |
| if (len < sizeof(*notif)) { |
| IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n"); |
| return -EIO; |
| } |
| |
| if (WARN_ON(!status)) { |
| IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n"); |
| return -EIO; |
| } |
| |
| if (WARN_ON(!(status->wakeup_reasons & |
| IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) { |
| IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n", |
| status->wakeup_reasons); |
| return -EIO; |
| } |
| |
| data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet); |
| |
| /* data_size got the padding from the notification, remove it. */ |
| if (packet_len < data_size) |
| data_size = packet_len; |
| |
| status->wake_packet = kmemdup(notif->wake_packet, data_size, |
| GFP_ATOMIC); |
| |
| if (!status->wake_packet) |
| return -ENOMEM; |
| |
| status->wake_packet_length = packet_len; |
| status->wake_packet_bufsize = data_size; |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm, |
| struct iwl_d3_data *d3_data, |
| struct iwl_scan_offload_match_info *notif, |
| u32 len) |
| { |
| struct iwl_wowlan_status_data *status = d3_data->status; |
| struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); |
| struct iwl_mvm_nd_results *results = d3_data->nd_results; |
| size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) * |
| iwl_umac_scan_get_max_profiles(mvm->fw); |
| |
| if (IS_ERR_OR_NULL(vif)) |
| return; |
| |
| if (len < sizeof(struct iwl_scan_offload_match_info)) { |
| IWL_ERR(mvm, "Invalid scan match info notification\n"); |
| return; |
| } |
| |
| if (!mvm->net_detect) { |
| IWL_ERR(mvm, "Unexpected scan match info notification\n"); |
| return; |
| } |
| |
| if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { |
| IWL_ERR(mvm, |
| "Ignore scan match info notification: no reason\n"); |
| return; |
| } |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done); |
| #endif |
| |
| results->matched_profiles = le32_to_cpu(notif->matched_profiles); |
| IWL_INFO(mvm, "number of matched profiles=%u\n", |
| results->matched_profiles); |
| |
| if (results->matched_profiles) { |
| memcpy(results->matches, notif->matches, matches_len); |
| d3_data->nd_results_valid = TRUE; |
| } |
| |
| /* no scan should be active at this point */ |
| mvm->scan_status = 0; |
| for (i = 0; i < mvm->max_scans; i++) |
| mvm->scan_uid_status[i] = 0; |
| } |
| |
| static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait, |
| struct iwl_rx_packet *pkt, void *data) |
| { |
| struct iwl_mvm *mvm = |
| container_of(notif_wait, struct iwl_mvm, notif_wait); |
| struct iwl_d3_data *d3_data = data; |
| u32 len = iwl_rx_packet_payload_len(pkt); |
| int ret; |
| int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, |
| PROT_OFFLOAD_GROUP, |
| WOWLAN_INFO_NOTIFICATION, |
| IWL_FW_CMD_VER_UNKNOWN); |
| |
| |
| switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) { |
| case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): { |
| |
| if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) { |
| /* We might get two notifications due to dual bss */ |
| IWL_DEBUG_WOWLAN(mvm, |
| "Got additional wowlan info notification\n"); |
| break; |
| } |
| |
| if (wowlan_info_ver < 2) { |
| struct iwl_wowlan_info_notif_v1 *notif_v1 = |
| (void *)pkt->data; |
| struct iwl_wowlan_info_notif_v2 *notif_v2; |
| |
| notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC); |
| |
| if (!notif_v2) |
| return false; |
| |
| notif_v2->tid_tear_down = notif_v1->tid_tear_down; |
| notif_v2->station_id = notif_v1->station_id; |
| memset_after(notif_v2, 0, station_id); |
| iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, |
| d3_data->status, |
| len); |
| kfree(notif_v2); |
| |
| } else if (wowlan_info_ver == 2) { |
| struct iwl_wowlan_info_notif_v2 *notif_v2 = |
| (void *)pkt->data; |
| |
| iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2, |
| d3_data->status, |
| len); |
| } else { |
| struct iwl_wowlan_info_notif *notif = |
| (void *)pkt->data; |
| |
| iwl_mvm_parse_wowlan_info_notif(mvm, notif, |
| d3_data->status, len); |
| } |
| |
| d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO; |
| |
| if (d3_data->status && |
| d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT) |
| /* We are supposed to get also wake packet notif */ |
| d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; |
| |
| break; |
| } |
| case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): { |
| struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data; |
| |
| if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) { |
| /* We shouldn't get two wake packet notifications */ |
| IWL_ERR(mvm, |
| "Got additional wowlan wake packet notification\n"); |
| } else { |
| d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; |
| len = iwl_rx_packet_payload_len(pkt); |
| ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif, |
| d3_data->status, |
| len); |
| if (ret) |
| IWL_ERR(mvm, |
| "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n"); |
| } |
| |
| break; |
| } |
| case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): { |
| struct iwl_scan_offload_match_info *notif = (void *)pkt->data; |
| |
| if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) { |
| IWL_ERR(mvm, |
| "Got additional netdetect match info\n"); |
| break; |
| } |
| |
| d3_data->notif_received |= IWL_D3_ND_MATCH_INFO; |
| |
| /* explicitly set this in the 'expected' as well */ |
| d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO; |
| |
| len = iwl_rx_packet_payload_len(pkt); |
| iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len); |
| break; |
| } |
| case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): { |
| struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data; |
| |
| d3_data->d3_end_flags = __le32_to_cpu(notif->flags); |
| d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF; |
| |
| break; |
| } |
| default: |
| WARN_ON(1); |
| } |
| |
| return d3_data->notif_received == d3_data->notif_expected; |
| } |
| |
| static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test) |
| { |
| int ret; |
| enum iwl_d3_status d3_status; |
| struct iwl_host_cmd cmd = { |
| .id = D0I3_END_CMD, |
| .flags = CMD_WANT_SKB | CMD_SEND_IN_D3, |
| }; |
| bool reset = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| |
| ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset); |
| if (ret) |
| return ret; |
| |
| if (d3_status != IWL_D3_STATUS_ALIVE) { |
| IWL_INFO(mvm, "Device was reset during suspend\n"); |
| return -ENOENT; |
| } |
| |
| /* |
| * We should trigger resume flow using command only for 22000 family |
| * AX210 and above don't need the command since they have |
| * the doorbell interrupt. |
| */ |
| if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 && |
| fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) { |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret < 0) |
| IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", |
| ret); |
| } |
| |
| return ret; |
| } |
| |
| #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5) |
| |
| static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm, |
| struct iwl_d3_data *d3_data) |
| { |
| static const u16 d3_resume_notif[] = { |
| WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION), |
| WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION), |
| WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF), |
| WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) |
| }; |
| struct iwl_notification_wait wait_d3_notif; |
| int ret; |
| |
| iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, |
| d3_resume_notif, ARRAY_SIZE(d3_resume_notif), |
| iwl_mvm_wait_d3_notif, d3_data); |
| |
| ret = iwl_mvm_resume_firmware(mvm, d3_data->test); |
| if (ret) { |
| iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif); |
| return ret; |
| } |
| |
| return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif, |
| IWL_MVM_D3_NOTIF_TIMEOUT); |
| } |
| |
| static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm) |
| { |
| return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| WOWLAN_INFO_NOTIFICATION, 0) && |
| iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| WOWLAN_WAKE_PKT_NOTIFICATION, 0) && |
| iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| D3_END_NOTIFICATION, 0); |
| } |
| |
| static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) |
| { |
| struct ieee80211_vif *vif = NULL; |
| int ret = 1; |
| struct iwl_mvm_nd_results results = {}; |
| struct iwl_d3_data d3_data = { |
| .test = test, |
| .notif_expected = |
| IWL_D3_NOTIF_WOWLAN_INFO | |
| IWL_D3_NOTIF_D3_END_NOTIF, |
| .nd_results_valid = false, |
| .nd_results = &results, |
| }; |
| bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); |
| bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm); |
| bool keep = false; |
| |
| mutex_lock(&mvm->mutex); |
| |
| mvm->last_reset_or_resume_time_jiffies = jiffies; |
| |
| /* get the BSS vif pointer again */ |
| vif = iwl_mvm_get_bss_vif(mvm); |
| if (IS_ERR_OR_NULL(vif)) |
| goto err; |
| |
| iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); |
| |
| if (iwl_mvm_check_rt_status(mvm, vif)) { |
| set_bit(STATUS_FW_ERROR, &mvm->trans->status); |
| iwl_mvm_dump_nic_error_log(mvm); |
| iwl_dbg_tlv_time_point(&mvm->fwrt, |
| IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL); |
| iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, |
| false, 0); |
| ret = 1; |
| goto err; |
| } |
| |
| if (resume_notif_based) { |
| d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL); |
| if (!d3_data.status) { |
| IWL_ERR(mvm, "Failed to allocate wowlan status\n"); |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); |
| if (ret) |
| goto err; |
| } else { |
| ret = iwl_mvm_resume_firmware(mvm, test); |
| if (ret < 0) |
| goto err; |
| } |
| |
| /* after the successful handshake, we're out of D3 */ |
| mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; |
| |
| /* when reset is required we can't send these following commands */ |
| if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE) |
| goto query_wakeup_reasons; |
| |
| /* |
| * Query the current location and source from the D3 firmware so we |
| * can play it back when we re-intiailize the D0 firmware |
| */ |
| iwl_mvm_update_changed_regdom(mvm); |
| |
| /* Re-configure PPAG settings */ |
| iwl_mvm_ppag_send_cmd(mvm); |
| |
| if (!unified_image) |
| /* Re-configure default SAR profile */ |
| iwl_mvm_sar_select_profile(mvm, 1, 1); |
| |
| if (mvm->net_detect && unified_image) { |
| /* If this is a non-unified image, we restart the FW, |
| * so no need to stop the netdetect scan. If that |
| * fails, continue and try to get the wake-up reasons, |
| * but trigger a HW restart by keeping a failure code |
| * in ret. |
| */ |
| ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, |
| false); |
| } |
| |
| query_wakeup_reasons: |
| keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data); |
| /* has unlocked the mutex, so skip that */ |
| goto out; |
| |
| err: |
| mutex_unlock(&mvm->mutex); |
| out: |
| if (d3_data.status) |
| kfree(d3_data.status->wake_packet); |
| kfree(d3_data.status); |
| iwl_mvm_free_nd(mvm); |
| |
| if (!d3_data.test && !mvm->net_detect) |
| ieee80211_iterate_active_interfaces_mtx(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_d3_disconnect_iter, |
| keep ? vif : NULL); |
| |
| clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); |
| |
| /* no need to reset the device in unified images, if successful */ |
| if (unified_image && !ret) { |
| /* nothing else to do if we already sent D0I3_END_CMD */ |
| if (d0i3_first) |
| return 0; |
| |
| if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, |
| D3_END_NOTIFICATION, 0)) { |
| ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); |
| if (!ret) |
| return 0; |
| } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) { |
| return 0; |
| } |
| } |
| |
| /* |
| * Reconfigure the device in one of the following cases: |
| * 1. We are not using a unified image |
| * 2. We are using a unified image but had an error while exiting D3 |
| */ |
| set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); |
| |
| /* regardless of what happened, we're now out of D3 */ |
| mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; |
| |
| return 1; |
| } |
| |
| int iwl_mvm_resume(struct ieee80211_hw *hw) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| ret = __iwl_mvm_resume(mvm, false); |
| |
| iwl_mvm_resume_tcm(mvm); |
| |
| iwl_fw_runtime_resume(&mvm->fwrt); |
| |
| return ret; |
| } |
| |
| void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| device_set_wakeup_enable(mvm->trans->dev, enabled); |
| } |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) |
| { |
| struct iwl_mvm *mvm = inode->i_private; |
| int err; |
| |
| if (mvm->d3_test_active) |
| return -EBUSY; |
| |
| file->private_data = inode->i_private; |
| |
| iwl_mvm_pause_tcm(mvm, true); |
| |
| iwl_fw_runtime_suspend(&mvm->fwrt); |
| |
| /* start pseudo D3 */ |
| rtnl_lock(); |
| wiphy_lock(mvm->hw->wiphy); |
| err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); |
| wiphy_unlock(mvm->hw->wiphy); |
| rtnl_unlock(); |
| if (err > 0) |
| err = -EINVAL; |
| if (err) |
| return err; |
| |
| mvm->d3_test_active = true; |
| mvm->keep_vif = NULL; |
| return 0; |
| } |
| |
| static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| u32 pme_asserted; |
| |
| while (true) { |
| /* read pme_ptr if available */ |
| if (mvm->d3_test_pme_ptr) { |
| pme_asserted = iwl_trans_read_mem32(mvm->trans, |
| mvm->d3_test_pme_ptr); |
| if (pme_asserted) |
| break; |
| } |
| |
| if (msleep_interruptible(100)) |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| /* skip the one we keep connection on */ |
| if (_data == vif) |
| return; |
| |
| if (vif->type == NL80211_IFTYPE_STATION) |
| ieee80211_connection_loss(vif); |
| } |
| |
| static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) |
| { |
| struct iwl_mvm *mvm = inode->i_private; |
| bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); |
| |
| mvm->d3_test_active = false; |
| |
| iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); |
| |
| rtnl_lock(); |
| wiphy_lock(mvm->hw->wiphy); |
| __iwl_mvm_resume(mvm, true); |
| wiphy_unlock(mvm->hw->wiphy); |
| rtnl_unlock(); |
| |
| iwl_mvm_resume_tcm(mvm); |
| |
| iwl_fw_runtime_resume(&mvm->fwrt); |
| |
| iwl_abort_notification_waits(&mvm->notif_wait); |
| if (!unified_image) { |
| int remaining_time = 10; |
| |
| ieee80211_restart_hw(mvm->hw); |
| |
| /* wait for restart and disconnect all interfaces */ |
| while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
| remaining_time > 0) { |
| remaining_time--; |
| msleep(1000); |
| } |
| |
| if (remaining_time == 0) |
| IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); |
| } |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); |
| |
| return 0; |
| } |
| |
| const struct file_operations iwl_dbgfs_d3_test_ops = { |
| .llseek = no_llseek, |
| .open = iwl_mvm_d3_test_open, |
| .read = iwl_mvm_d3_test_read, |
| .release = iwl_mvm_d3_test_release, |
| }; |
| #endif |