diff options
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 582 |
1 files changed, 520 insertions, 62 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f8d52b3b0d0e..23d85a1abbc5 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -8,7 +8,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2015 - 2017 Intel Deutschland GmbH - * Copyright (C) 2018 - 2024 Intel Corporation + * Copyright (C) 2018 - 2025 Intel Corporation */ #include <linux/delay.h> @@ -168,6 +168,9 @@ ieee80211_determine_ap_chan(struct ieee80211_sub_if_data *sdata, bool no_vht = false; u32 ht_cfreq; + if (ieee80211_hw_check(&sdata->local->hw, STRICT)) + ignore_ht_channel_mismatch = false; + *chandef = (struct cfg80211_chan_def) { .chan = channel, .width = NL80211_CHAN_WIDTH_20_NOHT, @@ -343,6 +346,115 @@ ieee80211_determine_ap_chan(struct ieee80211_sub_if_data *sdata, } static bool +ieee80211_verify_sta_ht_mcs_support(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const struct ieee80211_ht_operation *ht_op) +{ + struct ieee80211_sta_ht_cap sta_ht_cap; + int i; + + if (sband->band == NL80211_BAND_6GHZ) + return true; + + if (!ht_op) + return false; + + memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); + ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); + + /* + * P802.11REVme/D7.0 - 6.5.4.2.4 + * ... + * If the MLME of an HT STA receives an MLME-JOIN.request primitive + * with the SelectedBSS parameter containing a Basic HT-MCS Set field + * in the HT Operation parameter that contains any unsupported MCSs, + * the MLME response in the resulting MLME-JOIN.confirm primitive shall + * contain a ResultCode parameter that is not set to the value SUCCESS. + * ... + */ + + /* Simply check that all basic rates are in the STA RX mask */ + for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { + if ((ht_op->basic_set[i] & sta_ht_cap.mcs.rx_mask[i]) != + ht_op->basic_set[i]) + return false; + } + + return true; +} + +static bool +ieee80211_verify_sta_vht_mcs_support(struct ieee80211_sub_if_data *sdata, + int link_id, + struct ieee80211_supported_band *sband, + const struct ieee80211_vht_operation *vht_op) +{ + struct ieee80211_sta_vht_cap sta_vht_cap; + u16 ap_min_req_set, sta_rx_mcs_map, sta_tx_mcs_map; + int nss; + + if (sband->band != NL80211_BAND_5GHZ) + return true; + + if (!vht_op) + return false; + + memcpy(&sta_vht_cap, &sband->vht_cap, sizeof(sta_vht_cap)); + ieee80211_apply_vhtcap_overrides(sdata, &sta_vht_cap); + + ap_min_req_set = le16_to_cpu(vht_op->basic_mcs_set); + sta_rx_mcs_map = le16_to_cpu(sta_vht_cap.vht_mcs.rx_mcs_map); + sta_tx_mcs_map = le16_to_cpu(sta_vht_cap.vht_mcs.tx_mcs_map); + + /* + * Many APs are incorrectly advertising an all-zero value here, + * which really means MCS 0-7 are required for 1-8 streams, but + * they don't really mean it that way. + * Some other APs are incorrectly advertising 3 spatial streams + * with MCS 0-7 are required, but don't really mean it that way + * and we'll connect only with HT, rather than even HE. + * As a result, unfortunately the VHT basic MCS/NSS set cannot + * be used at all, so check it only in strict mode. + */ + if (!ieee80211_hw_check(&sdata->local->hw, STRICT)) + return true; + + /* + * P802.11REVme/D7.0 - 6.5.4.2.4 + * ... + * If the MLME of a VHT STA receives an MLME-JOIN.request primitive + * with a SelectedBSS parameter containing a Basic VHT-MCS And NSS Set + * field in the VHT Operation parameter that contains any unsupported + * <VHT-MCS, NSS> tuple, the MLME response in the resulting + * MLME-JOIN.confirm primitive shall contain a ResultCode parameter + * that is not set to the value SUCCESS. + * ... + */ + for (nss = 8; nss > 0; nss--) { + u8 ap_op_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; + u8 sta_rx_val; + u8 sta_tx_val; + + if (ap_op_val == IEEE80211_HE_MCS_NOT_SUPPORTED) + continue; + + sta_rx_val = (sta_rx_mcs_map >> (2 * (nss - 1))) & 3; + sta_tx_val = (sta_tx_mcs_map >> (2 * (nss - 1))) & 3; + + if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + sta_rx_val < ap_op_val || sta_tx_val < ap_op_val) { + link_id_info(sdata, link_id, + "Missing mandatory rates for %d Nss, rx %d, tx %d oper %d, disable VHT\n", + nss, sta_rx_val, sta_tx_val, ap_op_val); + return false; + } + } + + return true; +} + +static bool ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, int link_id, const struct ieee80211_he_cap_elem *he_cap, @@ -388,7 +500,7 @@ ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, * zeroes, which is nonsense, and completely inconsistent with itself * (it doesn't have 8 streams). Accept the settings in this case anyway. */ - if (!ap_min_req_set) + if (!ieee80211_hw_check(&sdata->local->hw, STRICT) && !ap_min_req_set) return true; /* make sure the AP is consistent with itself @@ -448,7 +560,7 @@ ieee80211_verify_sta_he_mcs_support(struct ieee80211_sub_if_data *sdata, * zeroes, which is nonsense, and completely inconsistent with itself * (it doesn't have 8 streams). Accept the settings in this case anyway. */ - if (!ap_min_req_set) + if (!ieee80211_hw_check(&sdata->local->hw, STRICT) && !ap_min_req_set) return true; /* Need to go over for 80MHz, 160MHz and for 80+80 */ @@ -877,7 +989,7 @@ static void ieee80211_set_chanreq_ap(struct ieee80211_sub_if_data *sdata, chanreq->ap = *ap_chandef; } -static struct ieee802_11_elems * +VISIBLE_IF_MAC80211_KUNIT struct ieee802_11_elems * ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, struct ieee80211_conn_settings *conn, struct cfg80211_bss *cbss, int link_id, @@ -1039,6 +1151,26 @@ again: link_id_info(sdata, link_id, "regulatory prevented using AP config, downgraded\n"); + if (conn->mode >= IEEE80211_CONN_MODE_HT && + !ieee80211_verify_sta_ht_mcs_support(sdata, sband, + elems->ht_operation)) { + conn->mode = IEEE80211_CONN_MODE_LEGACY; + conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20; + link_id_info(sdata, link_id, + "required MCSes not supported, disabling HT\n"); + } + + if (conn->mode >= IEEE80211_CONN_MODE_VHT && + !ieee80211_verify_sta_vht_mcs_support(sdata, link_id, sband, + elems->vht_operation)) { + conn->mode = IEEE80211_CONN_MODE_HT; + conn->bw_limit = min_t(enum ieee80211_conn_bw_limit, + conn->bw_limit, + IEEE80211_CONN_BW_LIMIT_40); + link_id_info(sdata, link_id, + "required MCSes not supported, disabling VHT\n"); + } + if (conn->mode >= IEEE80211_CONN_MODE_HE && (!ieee80211_verify_peer_he_mcs_support(sdata, link_id, (void *)elems->he_cap, @@ -1082,6 +1214,7 @@ free: kfree(elems); return ERR_PTR(ret); } +EXPORT_SYMBOL_IF_MAC80211_KUNIT(ieee80211_determine_chan_mode); static int ieee80211_config_bw(struct ieee80211_link_data *link, struct ieee802_11_elems *elems, @@ -1313,13 +1446,15 @@ static bool ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, * Some APs apparently get confused if our capabilities are better * than theirs, so restrict what we advertise in the assoc request. */ - if (!(ap_vht_cap->vht_cap_info & - cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) - cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | - IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); - else if (!(ap_vht_cap->vht_cap_info & - cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) - cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; + if (!ieee80211_hw_check(&local->hw, STRICT)) { + if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) + cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | + IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); + else if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) + cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; + } /* * If some other vif is using the MU-MIMO capability we cannot associate @@ -1361,14 +1496,16 @@ static bool ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, return mu_mimo_owner; } -static void ieee80211_assoc_add_rates(struct sk_buff *skb, +static void ieee80211_assoc_add_rates(struct ieee80211_local *local, + struct sk_buff *skb, enum nl80211_chan_width width, struct ieee80211_supported_band *sband, struct ieee80211_mgd_assoc_data *assoc_data) { u32 rates; - if (assoc_data->supp_rates_len) { + if (assoc_data->supp_rates_len && + !ieee80211_hw_check(&local->hw, STRICT)) { /* * Get all rates supported by the device and the AP as * some APs don't like getting a superset of their rates @@ -1584,7 +1721,7 @@ ieee80211_add_link_elems(struct ieee80211_sub_if_data *sdata, *capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; if (sband->band != NL80211_BAND_S1GHZ) - ieee80211_assoc_add_rates(skb, width, sband, assoc_data); + ieee80211_assoc_add_rates(local, skb, width, sband, assoc_data); if (*capab & WLAN_CAPABILITY_SPECTRUM_MGMT || *capab & WLAN_CAPABILITY_RADIO_MEASURE) { @@ -2051,7 +2188,8 @@ static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) * for some reason check it and want it to be set, set the bit for all * pre-EHT connections as we used to do. */ - if (link->u.mgd.conn.mode < IEEE80211_CONN_MODE_EHT) + if (link->u.mgd.conn.mode < IEEE80211_CONN_MODE_EHT && + !ieee80211_hw_check(&local->hw, STRICT)) capab |= WLAN_CAPABILITY_ESS; /* add the elements for the assoc (main) link */ @@ -3375,10 +3513,10 @@ void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link) /* MLME */ static bool -ieee80211_sta_wmm_params(struct ieee80211_local *local, - struct ieee80211_link_data *link, - const u8 *wmm_param, size_t wmm_param_len, - const struct ieee80211_mu_edca_param_set *mu_edca) +_ieee80211_sta_wmm_params(struct ieee80211_local *local, + struct ieee80211_link_data *link, + const u8 *wmm_param, size_t wmm_param_len, + const struct ieee80211_mu_edca_param_set *mu_edca) { struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS]; @@ -3507,6 +3645,19 @@ ieee80211_sta_wmm_params(struct ieee80211_local *local, for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) link->tx_conf[ac] = params[ac]; + return true; +} + +static bool +ieee80211_sta_wmm_params(struct ieee80211_local *local, + struct ieee80211_link_data *link, + const u8 *wmm_param, size_t wmm_param_len, + const struct ieee80211_mu_edca_param_set *mu_edca) +{ + if (!_ieee80211_sta_wmm_params(local, link, wmm_param, wmm_param_len, + mu_edca)) + return false; + ieee80211_mgd_set_link_qos_params(link); /* enable WMM or activate new settings */ @@ -3779,8 +3930,34 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, ifmgd->associated = false; + if (tx) { + bool tx_link_found = false; + + for (link_id = 0; + link_id < ARRAY_SIZE(sdata->link); + link_id++) { + struct ieee80211_link_data *link; + + if (!ieee80211_vif_link_active(&sdata->vif, link_id)) + continue; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON_ONCE(!link)) + continue; + + if (link->u.mgd.csa.blocked_tx) + continue; + + tx_link_found = true; + break; + } + + tx = tx_link_found; + } + /* other links will be destroyed */ sdata->deflink.conf->bss = NULL; + sdata->deflink.conf->epcs_support = false; sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; netif_carrier_off(sdata->dev); @@ -3808,23 +3985,24 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, * insist sending these frames which can take time and delay * the disconnection and possible the roaming. */ - if (tx) - ieee80211_flush_queues(local, sdata, true); + ieee80211_flush_queues(local, sdata, true); - /* deauthenticate/disassociate now */ - if (tx || frame_buf) { + if (tx) { drv_mgd_prepare_tx(sdata->local, sdata, &info); ieee80211_send_deauth_disassoc(sdata, sdata->vif.cfg.ap_addr, sdata->vif.cfg.ap_addr, stype, - reason, tx, frame_buf); - } + reason, true, frame_buf); - /* flush out frame - make sure the deauth was actually sent */ - if (tx) + /* flush out frame - make sure the deauth was actually sent */ ieee80211_flush_queues(local, sdata, false); - drv_mgd_complete_tx(sdata->local, sdata, &info); + drv_mgd_complete_tx(sdata->local, sdata, &info); + } else if (frame_buf) { + ieee80211_send_deauth_disassoc(sdata, sdata->vif.cfg.ap_addr, + sdata->vif.cfg.ap_addr, stype, + reason, false, frame_buf); + } /* clear AP addr only after building the needed mgmt frames */ eth_zero_addr(sdata->deflink.u.mgd.bssid); @@ -3967,6 +4145,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, * when the flow started. */ ieee80211_ml_reconf_reset(sdata); + + ifmgd->epcs.enabled = false; + ifmgd->epcs.dialog_token = 0; } static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) @@ -4247,33 +4428,12 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; - bool tx = false; lockdep_assert_wiphy(local->hw.wiphy); if (!ifmgd->associated) return; - /* only transmit if we have a link that makes that worthwhile */ - for (unsigned int link_id = 0; - link_id < ARRAY_SIZE(sdata->link); - link_id++) { - struct ieee80211_link_data *link; - - if (!ieee80211_vif_link_active(&sdata->vif, link_id)) - continue; - - link = sdata_dereference(sdata->link[link_id], sdata); - if (WARN_ON_ONCE(!link)) - continue; - - if (link->u.mgd.csa.blocked_tx) - continue; - - tx = true; - break; - } - if (!ifmgd->driver_disconnect) { unsigned int link_id; @@ -4301,14 +4461,14 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) ifmgd->driver_disconnect ? WLAN_REASON_DEAUTH_LEAVING : WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, - tx, frame_buf); + true, frame_buf); /* the other links will be destroyed */ sdata->vif.bss_conf.csa_active = false; sdata->deflink.u.mgd.csa.waiting_bcn = false; sdata->deflink.u.mgd.csa.blocked_tx = false; ieee80211_vif_unblock_queues_csa(sdata); - ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, + ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, ifmgd->reconnect); ifmgd->reconnect = false; @@ -4570,6 +4730,8 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); status_code = le16_to_cpu(mgmt->u.auth.status_code); + info.link_id = ifmgd->auth_data->link_id; + if (auth_alg != ifmgd->auth_data->algorithm || (auth_alg != WLAN_AUTH_SAE && auth_transaction != ifmgd->auth_data->expected_transaction) || @@ -4835,6 +4997,82 @@ static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, IEEE80211_HE_MAC_CAP2_BCAST_TWT); } +static void ieee80211_epcs_changed(struct ieee80211_sub_if_data *sdata, + bool enabled) +{ + /* in any case this is called, dialog token should be reset */ + sdata->u.mgd.epcs.dialog_token = 0; + + if (sdata->u.mgd.epcs.enabled == enabled) + return; + + sdata->u.mgd.epcs.enabled = enabled; + cfg80211_epcs_changed(sdata->dev, enabled); +} + +static void ieee80211_epcs_teardown(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + u8 link_id; + + if (!sdata->u.mgd.epcs.enabled) + return; + + lockdep_assert_wiphy(local->hw.wiphy); + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + struct ieee802_11_elems *elems; + struct ieee80211_link_data *link; + const struct cfg80211_bss_ies *ies; + bool ret; + + rcu_read_lock(); + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link || !link->conf || !link->conf->bss) { + rcu_read_unlock(); + continue; + } + + if (link->u.mgd.disable_wmm_tracking) { + rcu_read_unlock(); + ieee80211_set_wmm_default(link, false, false); + continue; + } + + ies = rcu_dereference(link->conf->bss->beacon_ies); + if (!ies) { + rcu_read_unlock(); + ieee80211_set_wmm_default(link, false, false); + continue; + } + + elems = ieee802_11_parse_elems(ies->data, ies->len, false, + NULL); + if (!elems) { + rcu_read_unlock(); + ieee80211_set_wmm_default(link, false, false); + continue; + } + + ret = _ieee80211_sta_wmm_params(local, link, + elems->wmm_param, + elems->wmm_param_len, + elems->mu_edca_param_set); + + kfree(elems); + rcu_read_unlock(); + + if (!ret) { + ieee80211_set_wmm_default(link, false, false); + continue; + } + + ieee80211_mgd_set_link_qos_params(link); + ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_QOS); + } +} + static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, struct link_sta_info *link_sta, struct cfg80211_bss *cbss, @@ -4936,7 +5174,7 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, * 2G/3G/4G wifi routers, reported models include the "Onda PN51T", * "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device. */ - if (!is_6ghz && + if (!ieee80211_hw_check(&local->hw, STRICT) && !is_6ghz && ((assoc_data->wmm && !elems->wmm_param) || (link->u.mgd.conn.mode >= IEEE80211_CONN_MODE_HT && (!elems->ht_cap_elem || !elems->ht_operation)) || @@ -5071,6 +5309,15 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, bss_vht_cap = (const void *)elem->data; } + if (ieee80211_hw_check(&local->hw, STRICT) && + (!bss_vht_cap || memcmp(bss_vht_cap, elems->vht_cap_elem, + sizeof(*bss_vht_cap)))) { + rcu_read_unlock(); + ret = false; + link_info(link, "VHT capabilities mismatch\n"); + goto out; + } + ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, elems->vht_cap_elem, bss_vht_cap, link_sta); @@ -5108,14 +5355,27 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, link_sta); bss_conf->eht_support = link_sta->pub->eht_cap.has_eht; + bss_conf->epcs_support = bss_conf->eht_support && + !!(elems->eht_cap->fixed.mac_cap_info[0] & + IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS); + + /* EPCS might be already enabled but a new added link + * does not support EPCS. This should not really happen + * in practice. + */ + if (sdata->u.mgd.epcs.enabled && + !bss_conf->epcs_support) + ieee80211_epcs_teardown(sdata); } else { bss_conf->eht_support = false; + bss_conf->epcs_support = false; } } else { bss_conf->he_support = false; bss_conf->twt_requester = false; bss_conf->twt_protected = false; bss_conf->eht_support = false; + bss_conf->epcs_support = false; } bss_conf->twt_broadcast = @@ -7146,7 +7406,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, ieee80211_mgd_update_bss_param_ch_cnt(sdata, bss_conf, elems); - if (!link->u.mgd.disable_wmm_tracking && + if (!sdata->u.mgd.epcs.enabled && + !link->u.mgd.disable_wmm_tracking && ieee80211_sta_wmm_params(local, link, elems->wmm_param, elems->wmm_param_len, elems->mu_edca_param_set)) @@ -7598,13 +7859,9 @@ void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, __ieee80211_disconnect(sdata); } -static void ieee80211_teardown_ttlm_work(struct wiphy *wiphy, - struct wiphy_work *work) +void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata) { u16 new_dormant_links; - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, - u.mgd.teardown_ttlm_work); if (!sdata->vif.neg_ttlm.valid) return; @@ -7619,6 +7876,16 @@ static void ieee80211_teardown_ttlm_work(struct wiphy *wiphy, BSS_CHANGED_MLD_VALID_LINKS); } +static void ieee80211_teardown_ttlm_work(struct wiphy *wiphy, + struct wiphy_work *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + u.mgd.teardown_ttlm_work); + + ieee80211_process_ttlm_teardown(sdata); +} + void ieee80211_send_teardown_neg_ttlm(struct ieee80211_vif *vif) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); @@ -9489,7 +9756,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, req->reason_code, false); - drv_mgd_complete_tx(sdata->local, sdata, &info); return 0; } @@ -10129,9 +10395,6 @@ int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, if (WARN_ON(!sta)) return -ENOLINK; - if (rem_links & BIT(sta->sta.deflink.link_id)) - return -EINVAL; - /* Adding links to the set of valid link is done only after a successful * ML reconfiguration frame exchange. Here prepare the data for the ML * reconfiguration frame construction and allocate the required @@ -10321,3 +10584,198 @@ int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, kfree(data); return err; } + +static bool ieee80211_mgd_epcs_supp(struct ieee80211_sub_if_data *sdata) +{ + unsigned long valid_links = sdata->vif.valid_links; + u8 link_id; + + lockdep_assert_wiphy(sdata->local->hw.wiphy); + + if (!ieee80211_vif_is_mld(&sdata->vif)) + return false; + + for_each_set_bit(link_id, &valid_links, IEEE80211_MLD_MAX_NUM_LINKS) { + struct ieee80211_bss_conf *bss_conf = + sdata_dereference(sdata->vif.link_conf[link_id], sdata); + + if (WARN_ON(!bss_conf) || !bss_conf->epcs_support) + return false; + } + + return true; +} + +int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_mgmt *mgmt; + struct sk_buff *skb; + int frame_len = offsetofend(struct ieee80211_mgmt, + u.action.u.epcs) + (enable ? 1 : 0); + + if (!ieee80211_mgd_epcs_supp(sdata)) + return -EINVAL; + + if (sdata->u.mgd.epcs.enabled == enable && + !sdata->u.mgd.epcs.dialog_token) + return 0; + + /* Do not allow enabling EPCS if the AP didn't respond yet. + * However, allow disabling EPCS in such a case. + */ + if (sdata->u.mgd.epcs.dialog_token && enable) + return -EALREADY; + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + frame_len); + if (!skb) + return -ENOBUFS; + + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = skb_put_zero(skb, frame_len); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + memcpy(mgmt->da, sdata->vif.cfg.ap_addr, ETH_ALEN); + memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); + memcpy(mgmt->bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); + + mgmt->u.action.category = WLAN_CATEGORY_PROTECTED_EHT; + if (enable) { + u8 *pos = mgmt->u.action.u.epcs.variable; + + mgmt->u.action.u.epcs.action_code = + WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_REQ; + + *pos = ++sdata->u.mgd.dialog_token_alloc; + sdata->u.mgd.epcs.dialog_token = *pos; + } else { + mgmt->u.action.u.epcs.action_code = + WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_TEARDOWN; + + ieee80211_epcs_teardown(sdata); + ieee80211_epcs_changed(sdata, false); + } + + ieee80211_tx_skb(sdata, skb); + return 0; +} + +static void ieee80211_ml_epcs(struct ieee80211_sub_if_data *sdata, + struct ieee802_11_elems *elems) +{ + const struct element *sub; + size_t scratch_len = elems->ml_epcs_len; + u8 *scratch __free(kfree) = kzalloc(scratch_len, GFP_KERNEL); + + lockdep_assert_wiphy(sdata->local->hw.wiphy); + + if (!ieee80211_vif_is_mld(&sdata->vif) || !elems->ml_epcs) + return; + + if (WARN_ON(!scratch)) + return; + + /* Directly parse the sub elements as the common information doesn't + * hold any useful information. + */ + for_each_mle_subelement(sub, (const u8 *)elems->ml_epcs, + elems->ml_epcs_len) { + struct ieee80211_link_data *link; + struct ieee802_11_elems *link_elems __free(kfree); + u8 *pos = (void *)sub->data; + u16 control; + ssize_t len; + u8 link_id; + + if (sub->id != IEEE80211_MLE_SUBELEM_PER_STA_PROFILE) + continue; + + if (sub->datalen < sizeof(control)) + break; + + control = get_unaligned_le16(pos); + link_id = control & IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + continue; + + len = cfg80211_defragment_element(sub, (u8 *)elems->ml_epcs, + elems->ml_epcs_len, + scratch, scratch_len, + IEEE80211_MLE_SUBELEM_FRAGMENT); + if (len < (ssize_t)sizeof(control)) + continue; + + pos = scratch + sizeof(control); + len -= sizeof(control); + + link_elems = ieee802_11_parse_elems(pos, len, false, NULL); + if (!link_elems) + continue; + + if (ieee80211_sta_wmm_params(sdata->local, link, + link_elems->wmm_param, + link_elems->wmm_param_len, + link_elems->mu_edca_param_set)) + ieee80211_link_info_change_notify(sdata, link, + BSS_CHANGED_QOS); + } +} + +void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee802_11_elems *elems __free(kfree) = NULL; + size_t ies_len; + u16 status_code; + u8 *pos, dialog_token; + + if (!ieee80211_mgd_epcs_supp(sdata)) + return; + + /* Handle dialog token and status code */ + pos = mgmt->u.action.u.epcs.variable; + dialog_token = *pos; + status_code = get_unaligned_le16(pos + 1); + + /* An EPCS enable response with dialog token == 0 is an unsolicited + * notification from the AP MLD. In such a case, EPCS should already be + * enabled and status must be success + */ + if (!dialog_token && + (!sdata->u.mgd.epcs.enabled || + status_code != WLAN_STATUS_SUCCESS)) + return; + + if (sdata->u.mgd.epcs.dialog_token != dialog_token) + return; + + sdata->u.mgd.epcs.dialog_token = 0; + + if (status_code != WLAN_STATUS_SUCCESS) + return; + + pos += IEEE80211_EPCS_ENA_RESP_BODY_LEN; + ies_len = len - offsetof(struct ieee80211_mgmt, + u.action.u.epcs.variable) - + IEEE80211_EPCS_ENA_RESP_BODY_LEN; + + elems = ieee802_11_parse_elems(pos, ies_len, true, NULL); + if (!elems) + return; + + ieee80211_ml_epcs(sdata, elems); + ieee80211_epcs_changed(sdata, true); +} + +void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + if (!ieee80211_vif_is_mld(&sdata->vif) || + !sdata->u.mgd.epcs.enabled) + return; + + ieee80211_epcs_teardown(sdata); + ieee80211_epcs_changed(sdata, false); +} |