| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Johannes Berg | 8289 | 51.43% | 54 | 26.47% |
| Yedidya Benshimol | 2069 | 12.84% | 6 | 2.94% |
| Luciano Coelho | 1945 | 12.07% | 38 | 18.63% |
| Haim Dreyfuss | 1071 | 6.64% | 14 | 6.86% |
| Ilan Peer | 892 | 5.53% | 4 | 1.96% |
| Naftali Goldstein | 255 | 1.58% | 3 | 1.47% |
| Emmanuel Grumbach | 242 | 1.50% | 19 | 9.31% |
| Eliad Peller | 177 | 1.10% | 13 | 6.37% |
| Nathan Errera | 163 | 1.01% | 2 | 0.98% |
| Mordechai Goodstein | 147 | 0.91% | 3 | 1.47% |
| Shahar S Matityahu | 142 | 0.88% | 5 | 2.45% |
| Sara Sharon | 119 | 0.74% | 12 | 5.88% |
| Ron Rindjunsky | 112 | 0.69% | 1 | 0.49% |
| David Spinadel | 104 | 0.65% | 3 | 1.47% |
| Daniel C. Halperin | 87 | 0.54% | 2 | 0.98% |
| Matti Gottlieb | 70 | 0.43% | 1 | 0.49% |
| Alex Malamud | 54 | 0.34% | 1 | 0.49% |
| Gregory Greenman | 43 | 0.27% | 3 | 1.47% |
| Gustavo A. R. Silva | 22 | 0.14% | 3 | 1.47% |
| Alexander Bondar | 19 | 0.12% | 2 | 0.98% |
| Tomas Winkler | 17 | 0.11% | 1 | 0.49% |
| Yi Zhu | 16 | 0.10% | 1 | 0.49% |
| Jonathan Doron | 16 | 0.10% | 1 | 0.49% |
| Tova Mussai | 12 | 0.07% | 1 | 0.49% |
| Derek Basehore | 9 | 0.06% | 1 | 0.49% |
| Arik Nemtsov | 6 | 0.04% | 2 | 0.98% |
| Gil Adam | 6 | 0.04% | 1 | 0.49% |
| striebit | 4 | 0.02% | 1 | 0.49% |
| Dan Carpenter | 2 | 0.01% | 1 | 0.49% |
| Liad Kaufman | 2 | 0.01% | 1 | 0.49% |
| Wey-Yi Guy | 2 | 0.01% | 1 | 0.49% |
| Sriram R | 2 | 0.01% | 1 | 0.49% |
| Chaya Rachel Ivgy | 1 | 0.01% | 1 | 0.49% |
| Matt Chen | 1 | 0.01% | 1 | 0.49% |
| Total | 16118 | 204 |
// 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 = kmalloc(sizeof(*data.rsc), GFP_KERNEL); if (!data.rsc) return -ENOMEM; memset(data.rsc, 0xff, sizeof(*data.rsc)); 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; } /* * This needs to be unlocked due to lock ordering * constraints. Since we're in the suspend path * that isn't really a problem though. */ mutex_unlock(&mvm->mutex); ret = iwl_mvm_wowlan_config_key_params(mvm, vif); mutex_lock(&mvm->mutex); 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 = {}; 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_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) { BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); 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)); memcpy(status->igtk.ipn, data->ipn, sizeof(data->ipn)); } 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; 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); } /* now we have all the data we need, unlock to avoid mac80211 issues */ mutex_unlock(&mvm->mutex); iwl_mvm_report_wakeup_reasons(mvm, vif, status); keep = iwl_mvm_setup_connection_keep(mvm, vif, status); return keep; out_unlock: mutex_unlock(&mvm->mutex); return false; } #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
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