diff options
| author | David S. Miller <davem@davemloft.net> | 2019-07-31 08:59:41 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-31 08:59:41 -0700 |
| commit | ac5fe22636e2d934056cebcf5d2c9ff7fade6514 (patch) | |
| tree | 64917c15a1af48394064f88f789edd2276afd1fb | |
| parent | 164f0de315ce3ea703f431cd01fd533e3f3fe358 (diff) | |
| parent | f39b07fdfb688724fedabf5507e15eaf398f2500 (diff) | |
Merge tag 'mac80211-next-for-davem-2019-07-31' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
We have a reasonably large number of changes:
* lots more HE (802.11ax) support, particularly things
relevant for the the AP side, but also mesh support
* debugfs cleanups from Greg
* some more work on extended key ID
* start using genl parallel_ops, as preparation for
weaning ourselves off RTNL and getting parallelism
* various other changes all over
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
40 files changed, 1070 insertions, 374 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 0606416dc971..12dad659bf68 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -6970,7 +6970,8 @@ exit: return ret; } -static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw) +static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct ath10k *ar = hw->priv; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index f23cb2f3d296..34121fbf32e3 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2392,7 +2392,8 @@ out: return ret; } -static int ath9k_cancel_remain_on_channel(struct ieee80211_hw *hw) +static int ath9k_cancel_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct ath_softc *sc = hw->priv; struct ath_common *common = ath9k_hw_common(sc->sc_ah); diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c index b1e5d64ca60d..74229fcb63a9 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c @@ -3256,28 +3256,16 @@ static void rs_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { struct iwl_lq_sta *lq_sta = priv_sta; - lq_sta->rs_sta_dbgfs_scale_table_file = - debugfs_create_file("rate_scale_table", 0600, dir, - lq_sta, &rs_sta_dbgfs_scale_table_ops); - lq_sta->rs_sta_dbgfs_stats_table_file = - debugfs_create_file("rate_stats_table", 0400, dir, - lq_sta, &rs_sta_dbgfs_stats_table_ops); - lq_sta->rs_sta_dbgfs_rate_scale_data_file = - debugfs_create_file("rate_scale_data", 0400, dir, - lq_sta, &rs_sta_dbgfs_rate_scale_data_ops); - lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = - debugfs_create_u8("tx_agg_tid_enable", 0600, dir, - &lq_sta->tx_agg_tid_en); -} + debugfs_create_file("rate_scale_table", 0600, dir, lq_sta, + &rs_sta_dbgfs_scale_table_ops); + debugfs_create_file("rate_stats_table", 0400, dir, lq_sta, + &rs_sta_dbgfs_stats_table_ops); + debugfs_create_file("rate_scale_data", 0400, dir, lq_sta, + &rs_sta_dbgfs_rate_scale_data_ops); + debugfs_create_u8("tx_agg_tid_enable", 0600, dir, + &lq_sta->tx_agg_tid_en); -static void rs_remove_debugfs(void *priv, void *priv_sta) -{ - struct iwl_lq_sta *lq_sta = priv_sta; - debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); } #endif @@ -3303,7 +3291,6 @@ static const struct rate_control_ops rs_ops = { .free_sta = rs_free_sta, #ifdef CONFIG_MAC80211_DEBUGFS .add_sta_debugfs = rs_add_debugfs, - .remove_sta_debugfs = rs_remove_debugfs, #endif }; diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.h b/drivers/net/wireless/intel/iwlwifi/dvm/rs.h index b7a1854cd202..68a840d739e8 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.h @@ -356,10 +356,6 @@ struct iwl_lq_sta { struct iwl_traffic_load load[IWL_MAX_TID_COUNT]; u8 tx_agg_tid_en; #ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *rs_sta_dbgfs_scale_table_file; - struct dentry *rs_sta_dbgfs_stats_table_file; - struct dentry *rs_sta_dbgfs_rate_scale_data_file; - struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; u32 dbg_fixed_rate; #endif struct iwl_priv *drv; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 55cd49ccbf0b..e63623251d61 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -4010,7 +4010,8 @@ out_unlock: return ret; } -static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) +static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index 8c9069f28a58..009e72abcd51 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -4093,10 +4093,6 @@ static void rs_drv_add_sta_debugfs(void *mvm, void *priv_sta, MVM_DEBUGFS_ADD_FILE_RS(ss_force, dir, 0600); } - -void rs_remove_sta_debugfs(void *mvm, void *mvm_sta) -{ -} #endif /* @@ -4124,7 +4120,6 @@ static const struct rate_control_ops rs_mvm_ops_drv = { .rate_update = rs_drv_rate_update, #ifdef CONFIG_MAC80211_DEBUGFS .add_sta_debugfs = rs_drv_add_sta_debugfs, - .remove_sta_debugfs = rs_remove_sta_debugfs, #endif .capa = RATE_CTRL_CAPA_VHT_EXT_NSS_BW, }; diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 519b4ee88c5c..3aeff7a3c3d8 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2216,7 +2216,8 @@ static int mac80211_hwsim_roc(struct ieee80211_hw *hw, return 0; } -static int mac80211_hwsim_croc(struct ieee80211_hw *hw) +static int mac80211_hwsim_croc(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct mac80211_hwsim_data *hwsim = hw->priv; @@ -2594,7 +2595,7 @@ static const struct ieee80211_sband_iftype_data he_capa_5ghz = { }, }; -static void mac80211_hswim_he_capab(struct ieee80211_supported_band *sband) +static void mac80211_hwsim_he_capab(struct ieee80211_supported_band *sband) { if (sband->band == NL80211_BAND_2GHZ) sband->iftype_data = @@ -2805,12 +2806,6 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, ieee80211_hw_set(hw, SIGNAL_DBM); ieee80211_hw_set(hw, SUPPORTS_PS); ieee80211_hw_set(hw, TDLS_WIDER_BW); - - /* We only have SW crypto and only implement the A-MPDU API - * (but don't really build A-MPDUs) so can have extended key - * support - */ - ieee80211_hw_set(hw, EXT_KEY_ID_NATIVE); if (rctbl) ieee80211_hw_set(hw, SUPPORTS_RC_TABLE); ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); @@ -2897,7 +2892,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, sband->ht_cap.mcs.rx_mask[1] = 0xff; sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; - mac80211_hswim_he_capab(sband); + mac80211_hwsim_he_capab(sband); hw->wiphy->bands[band] = sband; } @@ -3233,6 +3228,7 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, { struct mac80211_hwsim_data *data2; struct ieee80211_rx_status rx_status; + struct ieee80211_hdr *hdr; const u8 *dst; int frame_data_len; void *frame_data; @@ -3299,6 +3295,12 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]); rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); + hdr = (void *)skb->data; + + if (ieee80211_is_beacon(hdr->frame_control) || + ieee80211_is_probe_resp(hdr->frame_control)) + rx_status.boottime_ns = ktime_get_boottime_ns(); + memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); data2->rx_pkts++; data2->rx_bytes += skb->len; diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c index 49df3bb08d41..ce5e92d82efc 100644 --- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c +++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c @@ -1818,7 +1818,8 @@ out: return status; } -static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw) +static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct rsi_hw *adapter = hw->priv; struct rsi_common *common = adapter->priv; diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index b74dc8bc9755..547ad538d8b6 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -5749,7 +5749,8 @@ static void wlcore_roc_complete_work(struct work_struct *work) ieee80211_remain_on_channel_expired(wl->hw); } -static int wlcore_op_cancel_remain_on_channel(struct ieee80211_hw *hw) +static int wlcore_op_cancel_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct wl1271 *wl = hw->priv; diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 8511fadc0935..7d3f2ced92d1 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -881,6 +881,14 @@ struct ieee80211_tpc_report_ie { u8 link_margin; } __packed; +#define IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK GENMASK(2, 1) +#define IEEE80211_ADDBA_EXT_FRAG_LEVEL_SHIFT 1 +#define IEEE80211_ADDBA_EXT_NO_FRAG BIT(0) + +struct ieee80211_addba_ext_ie { + u8 data; +} __packed; + struct ieee80211_mgmt { __le16 frame_control; __le16 duration; @@ -973,6 +981,8 @@ struct ieee80211_mgmt { __le16 capab; __le16 timeout; __le16 start_seq_num; + /* followed by BA Extension */ + u8 variable[0]; } __packed addba_req; struct{ u8 action_code; @@ -1626,6 +1636,18 @@ struct ieee80211_he_operation { } __packed; /** + * struct ieee80211_he_spr - HE spatial reuse element + * + * This structure is the "HE spatial reuse element" element as + * described in P802.11ax_D4.0 section 9.4.2.241 + */ +struct ieee80211_he_spr { + u8 he_sr_control; + /* Optional 0 to 19 bytes: depends on @he_sr_control */ + u8 optional[0]; +} __packed; + +/** * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field * * This structure is the "MU AC Parameter Record" fields as @@ -2033,8 +2055,8 @@ ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info) * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size * @he_oper_ie: byte data of the He Operations IE, stating from the the byte * after the ext ID byte. It is assumed that he_oper_ie has at least - * sizeof(struct ieee80211_he_operation) bytes, checked already in - * ieee802_11_parse_elems_crc() + * sizeof(struct ieee80211_he_operation) bytes, the caller must have + * validated this. * @return the actual size of the IE data (not including header), or 0 on error */ static inline u8 @@ -2063,6 +2085,42 @@ ieee80211_he_oper_size(const u8 *he_oper_ie) return oper_len; } +/* HE Spatial Reuse defines */ +#define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT 0x4 +#define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT 0x8 + +/* + * ieee80211_he_spr_size - calculate 802.11ax HE Spatial Reuse IE size + * @he_spr_ie: byte data of the He Spatial Reuse IE, stating from the the byte + * after the ext ID byte. It is assumed that he_spr_ie has at least + * sizeof(struct ieee80211_he_spr) bytes, the caller must have validated + * this + * @return the actual size of the IE data (not including header), or 0 on error + */ +static inline u8 +ieee80211_he_spr_size(const u8 *he_spr_ie) +{ + struct ieee80211_he_spr *he_spr = (void *)he_spr_ie; + u8 spr_len = sizeof(struct ieee80211_he_spr); + u32 he_spr_params; + + /* Make sure the input is not NULL */ + if (!he_spr_ie) + return 0; + + /* Calc required length */ + he_spr_params = le32_to_cpu(he_spr->he_sr_control); + if (he_spr_params & IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT) + spr_len++; + if (he_spr_params & IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT) + spr_len += 18; + + /* Add the first byte (extension ID) to the total length */ + spr_len++; + + return spr_len; +} + /* Authentication algorithms */ #define WLAN_AUTH_OPEN 0 #define WLAN_AUTH_SHARED_KEY 1 @@ -2485,6 +2543,7 @@ enum ieee80211_eid_ext { WLAN_EID_EXT_HE_OPERATION = 36, WLAN_EID_EXT_UORA = 37, WLAN_EID_EXT_HE_MU_EDCA = 38, + WLAN_EID_EXT_HE_SPR = 39, WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME = 52, WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION = 55, WLAN_EID_EXT_NON_INHERITANCE = 56, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 45850a8391d9..35ec1f0a2bf9 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -247,6 +247,19 @@ struct ieee80211_rate { }; /** + * struct ieee80211_he_obss_pd - AP settings for spatial reuse + * + * @enable: is the feature enabled. + * @min_offset: minimal tx power offset an associated station shall use + * @max_offset: maximum tx power offset an associated station shall use + */ +struct ieee80211_he_obss_pd { + bool enable; + u8 min_offset; + u8 max_offset; +}; + +/** * struct ieee80211_sta_ht_cap - STA's HT capabilities * * This structure describes most essential parameters needed @@ -896,6 +909,7 @@ enum cfg80211_ap_settings_flags { * @vht_required: stations must support VHT * @twt_responder: Enable Target Wait Time * @flags: flags, as defined in enum cfg80211_ap_settings_flags + * @he_obss_pd: OBSS Packet Detection settings */ struct cfg80211_ap_settings { struct cfg80211_chan_def chandef; @@ -923,6 +937,7 @@ struct cfg80211_ap_settings { bool ht_required, vht_required; bool twt_responder; u32 flags; + struct ieee80211_he_obss_pd he_obss_pd; }; /** diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d26da013f7c0..6781d4637557 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -315,6 +315,7 @@ struct ieee80211_vif_chanctx_switch { * @BSS_CHANGED_FTM_RESPONDER: fime timing reasurement request responder * functionality changed for this BSS (AP mode). * @BSS_CHANGED_TWT: TWT status changed + * @BSS_CHANGED_HE_OBSS_PD: OBSS Packet Detection status changed. * */ enum ieee80211_bss_change { @@ -346,6 +347,7 @@ enum ieee80211_bss_change { BSS_CHANGED_MCAST_RATE = 1<<25, BSS_CHANGED_FTM_RESPONDER = 1<<26, BSS_CHANGED_TWT = 1<<27, + BSS_CHANGED_HE_OBSS_PD = 1<<28, /* when adding here, make sure to change ieee80211_reconfig */ }; @@ -600,6 +602,8 @@ struct ieee80211_ftm_responder_params { * nontransmitted BSSIDs * @profile_periodicity: the least number of beacon frames need to be received * in order to discover all the nontransmitted BSSIDs in the set. + * @he_operation: HE operation information of the AP we are connected to + * @he_obss_pd: OBSS Packet Detection parameters. */ struct ieee80211_bss_conf { const u8 *bssid; @@ -661,6 +665,8 @@ struct ieee80211_bss_conf { u8 bssid_indicator; bool ema_ap; u8 profile_periodicity; + struct ieee80211_he_operation he_operation; + struct ieee80211_he_obss_pd he_obss_pd; }; /** @@ -1058,11 +1064,13 @@ struct ieee80211_tx_info { * @sta: Station that the packet was transmitted for * @info: Basic tx status information * @skb: Packet skb (can be NULL if not provided by the driver) + * @rate: The TX rate that was used when sending the packet */ struct ieee80211_tx_status { struct ieee80211_sta *sta; struct ieee80211_tx_info *info; struct sk_buff *skb; + struct rate_info *rate; }; /** @@ -1702,6 +1710,9 @@ struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif); * a TKIP key if it only requires MIC space. Do not set together with * @IEEE80211_KEY_FLAG_GENERATE_MMIC on the same key. * @IEEE80211_KEY_FLAG_NO_AUTO_TX: Key needs explicit Tx activation. + * @IEEE80211_KEY_FLAG_GENERATE_MMIE: This flag should be set by the driver + * for a AES_CMAC key to indicate that it requires sequence number + * generation only */ enum ieee80211_key_flags { IEEE80211_KEY_FLAG_GENERATE_IV_MGMT = BIT(0), @@ -1714,6 +1725,7 @@ enum ieee80211_key_flags { IEEE80211_KEY_FLAG_RESERVE_TAILROOM = BIT(7), IEEE80211_KEY_FLAG_PUT_MIC_SPACE = BIT(8), IEEE80211_KEY_FLAG_NO_AUTO_TX = BIT(9), + IEEE80211_KEY_FLAG_GENERATE_MMIE = BIT(10), }; /** @@ -2268,11 +2280,9 @@ struct ieee80211_txq { * @IEEE80211_HW_SUPPORTS_ONLY_HE_MULTI_BSSID: Hardware supports multi BSSID * only for HE APs. Applies if @IEEE80211_HW_SUPPORTS_MULTI_BSSID is set. * - * @IEEE80211_HW_EXT_KEY_ID_NATIVE: Driver and hardware are supporting Extended - * Key ID and can handle two unicast keys per station for Rx and Tx. - * - * @IEEE80211_HW_NO_AMPDU_KEYBORDER_SUPPORT: The card/driver can't handle - * active Tx A-MPDU sessions with Extended Key IDs during rekey. + * @IEEE80211_HW_AMPDU_KEYBORDER_SUPPORT: The card and driver is only + * aggregating MPDUs with the same keyid, allowing mac80211 to keep Tx + * A-MPDU sessions active while rekeying with Extended Key ID. * * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays */ @@ -2325,8 +2335,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_TX_STATUS_NO_AMPDU_LEN, IEEE80211_HW_SUPPORTS_MULTI_BSSID, IEEE80211_HW_SUPPORTS_ONLY_HE_MULTI_BSSID, - IEEE80211_HW_EXT_KEY_ID_NATIVE, - IEEE80211_HW_NO_AMPDU_KEYBORDER_SUPPORT, + IEEE80211_HW_AMPDU_KEYBORDER_SUPPORT, /* keep last, obviously */ NUM_IEEE80211_HW_FLAGS @@ -3914,7 +3923,8 @@ struct ieee80211_ops { struct ieee80211_channel *chan, int duration, enum ieee80211_roc_type type); - int (*cancel_remain_on_channel)(struct ieee80211_hw *hw); + int (*cancel_remain_on_channel)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx); void (*get_ringparam)(struct ieee80211_hw *hw, u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); @@ -5945,7 +5955,6 @@ struct rate_control_ops { void (*add_sta_debugfs)(void *priv, void *priv_sta, struct dentry *dir); - void (*remove_sta_debugfs)(void *priv, void *priv_sta); u32 (*get_expected_throughput)(void *priv_sta); }; @@ -6234,11 +6243,37 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *sta, u8 tid); * but for the duration of the frame handling. * However, also note that while in the wake_tx_queue() method, * rcu_read_lock() is already held. + * + * softirqs must also be disabled when this function is called. + * In process context, use ieee80211_tx_dequeue_ni() instead. */ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw, struct ieee80211_txq *txq); /** + * ieee80211_tx_dequeue_ni - dequeue a packet from a software tx queue + * (in process context) + * + * Like ieee80211_tx_dequeue() but can be called in process context + * (internally disables bottom halves). + * + * @hw: pointer as obtained from ieee80211_alloc_hw() + * @txq: pointer obtained from station or virtual interface, or from + * ieee80211_next_txq() + */ +static inline struct sk_buff *ieee80211_tx_dequeue_ni(struct ieee80211_hw *hw, + struct ieee80211_txq *txq) +{ + struct sk_buff *skb; + + local_bh_disable(); + skb = ieee80211_tx_dequeue(hw, txq); + local_bh_enable(); + + return skb; +} + +/** * ieee80211_next_txq - get next tx queue to pull packets from * * @hw: pointer as obtained from ieee80211_alloc_hw() diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index beb9a9d0c00a..822851d369ab 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -657,7 +657,9 @@ * is used during CSA period. * @NL80211_CMD_FRAME_WAIT_CANCEL: When an off-channel TX was requested, this * command may be used with the corresponding cookie to cancel the wait - * time if it is known that it is no longer necessary. + * time if it is known that it is no longer necessary. This command is + * also sent as an event whenever the driver has completed the off-channel + * wait time. * @NL80211_CMD_ACTION: Alias for @NL80211_CMD_FRAME for backward compatibility. * @NL80211_CMD_FRAME_TX_STATUS: Report TX status of a management frame * transmitted with %NL80211_CMD_FRAME. %NL80211_ATTR_COOKIE identifies @@ -2356,6 +2358,9 @@ enum nl80211_commands { * * @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support. * + * @NL80211_ATTR_HE_OBSS_PD: nested attribute for OBSS Packet Detection + * functionality. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2813,6 +2818,8 @@ enum nl80211_attrs { NL80211_ATTR_TWT_RESPONDER, + NL80211_ATTR_HE_OBSS_PD, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -6488,4 +6495,26 @@ enum nl80211_peer_measurement_ftm_resp { NL80211_PMSR_FTM_RESP_ATTR_MAX = NUM_NL80211_PMSR_FTM_RESP_ATTR - 1 }; +/** + * enum nl80211_obss_pd_attributes - OBSS packet detection attributes + * @__NL80211_HE_OBSS_PD_ATTR_INVALID: Invalid + * + * @NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET: the OBSS PD minimum tx power offset. + * @NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET: the OBSS PD maximum tx power offset. + * + * @__NL80211_HE_OBSS_PD_ATTR_LAST: Internal + * @NL80211_HE_OBSS_PD_ATTR_MAX: highest OBSS PD attribute. + */ +enum nl80211_obss_pd_attributes { + __NL80211_HE_OBSS_PD_ATTR_INVALID, + + NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET, + NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET, + + /* keep last */ + __NL80211_HE_OBSS_PD_ATTR_LAST, + NL80211_HE_OBSS_PD_ATTR_MAX = __NL80211_HE_OBSS_PD_ATTR_LAST - 1, +}; + + #endif /* __LINUX_NL80211_H */ diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 01b0dad24500..4d1c335e06e5 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -178,17 +178,54 @@ static void sta_rx_agg_reorder_timer_expired(struct timer_list *t) rcu_read_unlock(); } -static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, +static void ieee80211_add_addbaext(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, + const struct ieee80211_addba_ext_ie *req) +{ + struct ieee80211_supported_band *sband; + struct ieee80211_addba_ext_ie *resp; + const struct ieee80211_sta_he_cap *he_cap; + u8 frag_level, cap_frag_level; + u8 *pos; + + sband = ieee80211_get_sband(sdata); + if (!sband) + return; + he_cap = ieee80211_get_he_iftype_cap(sband, sdata->vif.type); + if (!he_cap) + return; + + pos = skb_put_zero(skb, 2 + sizeof(struct ieee80211_addba_ext_ie)); + *pos++ = WLAN_EID_ADDBA_EXT; + *pos++ = sizeof(struct ieee80211_addba_ext_ie); + resp = (struct ieee80211_addba_ext_ie *)pos; + resp->data = req->data & IEEE80211_ADDBA_EXT_NO_FRAG; + + frag_level = u32_get_bits(req->data, + IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK); + cap_frag_level = u32_get_bits(he_cap->he_cap_elem.mac_cap_info[0], + IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK); + if (frag_level > cap_frag_level) + frag_level = cap_frag_level; + resp->data |= u8_encode_bits(frag_level, + IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK); +} + +static void ieee80211_send_addba_resp(struct sta_info *sta, u8 *da, u16 tid, u8 dialog_token, u16 status, u16 policy, - u16 buf_size, u16 timeout) + u16 buf_size, u16 timeout, + const struct ieee80211_addba_ext_ie *addbaext) { + struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; bool amsdu = ieee80211_hw_check(&local->hw, SUPPORTS_AMSDU_IN_AMPDU); u16 capab; - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + skb = dev_alloc_skb(sizeof(*mgmt) + + 2 + sizeof(struct ieee80211_addba_ext_ie) + + local->hw.extra_tx_headroom); if (!skb) return; @@ -222,13 +259,17 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); + if (sta->sta.he_cap.has_he && addbaext) + ieee80211_add_addbaext(sdata, skb, addbaext); + ieee80211_tx_skb(sdata, skb); } void ___ieee80211_start_rx_ba_session(struct sta_info *sta, u8 dialog_token, u16 timeout, u16 start_seq_num, u16 ba_policy, u16 tid, - u16 buf_size, bool tx, bool auto_seq) + u16 buf_size, bool tx, bool auto_seq, + const struct ieee80211_addba_ext_ie *addbaext) { struct ieee80211_local *local = sta->sdata->local; struct tid_ampdu_rx *tid_agg_rx; @@ -410,21 +451,22 @@ end: } if (tx) - ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, tid, + ieee80211_send_addba_resp(sta, sta->sta.addr, tid, dialog_token, status, 1, buf_size, - timeout); + timeout, addbaext); } static void __ieee80211_start_rx_ba_session(struct sta_info *sta, u8 dialog_token, u16 timeout, u16 start_seq_num, u16 ba_policy, u16 tid, u16 buf_size, bool tx, - bool auto_seq) + bool auto_seq, + const struct ieee80211_addba_ext_ie *addbaext) { mutex_lock(&sta->ampdu_mlme.mtx); ___ieee80211_start_rx_ba_session(sta, dialog_token, timeout, start_seq_num, ba_policy, tid, - buf_size, tx, auto_seq); + buf_size, tx, auto_seq, addbaext); mutex_unlock(&sta->ampdu_mlme.mtx); } @@ -434,7 +476,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, size_t len) { u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num; + struct ieee802_11_elems elems = { 0 }; u8 dialog_token; + int ies_len; /* extract session parameters from addba request frame */ dialog_token = mgmt->u.action.u.addba_req.dialog_token; @@ -447,9 +491,19 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; + ies_len = len - offsetof(struct ieee80211_mgmt, + u.action.u.addba_req.variable); + if (ies_len) { + ieee802_11_parse_elems(mgmt->u.action.u.addba_req.variable, + ies_len, true, &elems, mgmt->bssid, NULL); + if (elems.parse_error) + return; + } + __ieee80211_start_rx_ba_session(sta, dialog_token, timeout, start_seq_num, ba_policy, tid, - buf_size, true, false); + buf_size, true, false, + elems.addba_ext_ie); } void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif, diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 4d458067d80d..ed56b0c6fe19 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -980,7 +980,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS | BSS_CHANGED_TXPOWER | - BSS_CHANGED_TWT; + BSS_CHANGED_TWT | + BSS_CHANGED_HE_OBSS_PD; int err; int prev_beacon_int; @@ -1051,6 +1052,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, sdata->vif.bss_conf.enable_beacon = true; sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; sdata->vif.bss_conf.twt_responder = params->twt_responder; + memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, + sizeof(struct ieee80211_he_obss_pd)); sdata->vif.bss_conf.ssid_len = params->ssid_len; if (params->ssid_len) @@ -1543,7 +1546,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, if (ether_addr_equal(mac, sdata->vif.addr)) return -EINVAL; - if (is_multicast_ether_addr(mac)) + if (!is_valid_ether_addr(mac)) return -EINVAL; sta = sta_info_alloc(sdata, mac, GFP_KERNEL); diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 2e7f75938c51..568b3b276931 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -271,8 +271,7 @@ static const char *hw_flag_names[] = { FLAG(TX_STATUS_NO_AMPDU_LEN), FLAG(SUPPORTS_MULTI_BSSID), FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID), - FLAG(EXT_KEY_ID_NATIVE), - FLAG(NO_AMPDU_KEYBORDER_SUPPORT), + FLAG(AMPDU_KEYBORDER_SUPPORT), #undef FLAG }; diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index c2d8b5451a5e..2c9b3eb8b652 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -692,14 +692,16 @@ static inline int drv_remain_on_channel(struct ieee80211_local *local, return ret; } -static inline int drv_cancel_remain_on_channel(struct ieee80211_local *local) +static inline int +drv_cancel_remain_on_channel(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) { int ret; might_sleep(); - trace_drv_cancel_remain_on_channel(local); - ret = local->ops->cancel_remain_on_channel(&local->hw); + trace_drv_cancel_remain_on_channel(local, sdata); + ret = local->ops->cancel_remain_on_channel(&local->hw, &sdata->vif); trace_drv_return_int(local, ret); return ret; diff --git a/net/mac80211/he.c b/net/mac80211/he.c index 219650591c79..a02abfc424aa 100644 --- a/net/mac80211/he.c +++ b/net/mac80211/he.c @@ -50,3 +50,42 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, he_cap->has_he = true; } + +void +ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_operation *he_op_ie_elem) +{ + struct ieee80211_he_operation *he_operation = + &vif->bss_conf.he_operation; + + if (!he_op_ie_elem) { + memset(he_operation, 0, sizeof(*he_operation)); + return; + } + + vif->bss_conf.he_operation = *he_op_ie_elem; +} + +void +ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_spr *he_spr_ie_elem) +{ + struct ieee80211_he_obss_pd *he_obss_pd = + &vif->bss_conf.he_obss_pd; + const u8 *data = he_spr_ie_elem->optional; + + memset(he_obss_pd, 0, sizeof(*he_obss_pd)); + + if (!he_spr_ie_elem) + return; + + if (he_spr_ie_elem->he_sr_control & + IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT) + data++; + if (he_spr_ie_elem->he_sr_control & + IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT) { + he_obss_pd->max_offset = *data++; + he_obss_pd->min_offset = *data++; + he_obss_pd->enable = true; + } +} diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index d5a500b2a448..a2e4d6b8fd98 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -359,7 +359,7 @@ void ieee80211_ba_session_work(struct work_struct *work) sta->ampdu_mlme.tid_rx_manage_offl)) ___ieee80211_start_rx_ba_session(sta, 0, 0, 0, 1, tid, IEEE80211_MAX_AMPDU_BUF_HT, - false, true); + false, true, NULL); if (test_and_clear_bit(tid + IEEE80211_NUM_TIDS, sta->ampdu_mlme.tid_rx_manage_offl)) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 004e2e3adb88..791ce58d0f09 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1480,6 +1480,7 @@ struct ieee802_11_elems { const struct ieee80211_meshconf_ie *mesh_config; const u8 *he_cap; const struct ieee80211_he_operation *he_operation; + const struct ieee80211_he_spr *he_spr; const struct ieee80211_mu_edca_param_set *mu_edca_param_set; const u8 *uora_element; const u8 *mesh_id; @@ -1506,6 +1507,7 @@ struct ieee802_11_elems { u8 max_bssid_indicator; u8 dtim_count; u8 dtim_period; + const struct ieee80211_addba_ext_ie *addba_ext_ie; /* length of them, respectively */ u8 ext_capab_len; @@ -1767,7 +1769,8 @@ ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, u32 info_flags); void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_supported_band *sband, - int retry_count, int shift, bool send_to_cooked); + int retry_count, int shift, bool send_to_cooked, + struct ieee80211_tx_status *status); void ieee80211_check_fast_xmit(struct sta_info *sta); void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); @@ -1804,7 +1807,8 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, void ___ieee80211_start_rx_ba_session(struct sta_info *sta, u8 dialog_token, u16 timeout, u16 start_seq_num, u16 ba_policy, u16 tid, - u16 buf_size, bool tx, bool auto_seq); + u16 buf_size, bool tx, bool auto_seq, + const struct ieee80211_addba_ext_ie *addbaext); void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, enum ieee80211_agg_stop_reason reason); void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, @@ -1869,6 +1873,13 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband, const u8 *he_cap_ie, u8 he_cap_len, struct sta_info *sta); +void +ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_spr *he_spr_ie_elem); + +void +ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_operation *he_op_ie_elem); /* Spectrum management */ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, @@ -2133,9 +2144,11 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, u32 cap); u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, const struct cfg80211_chan_def *chandef); +u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype); u8 *ieee80211_ie_build_he_cap(u8 *pos, const struct ieee80211_sta_he_cap *he_cap, u8 *end); +u8 *ieee80211_ie_build_he_oper(u8 *pos); int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, const struct ieee80211_supported_band *sband, const u8 *srates, int srates_len, u32 *rates); diff --git a/net/mac80211/key.c b/net/mac80211/key.c index dd60f6428049..7dfee848abac 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -270,7 +270,7 @@ int ieee80211_set_tx_key(struct ieee80211_key *key) sta->ptk_idx = key->conf.keyidx; - if (ieee80211_hw_check(&local->hw, NO_AMPDU_KEYBORDER_SUPPORT)) + if (!ieee80211_hw_check(&local->hw, AMPDU_KEYBORDER_SUPPORT)) clear_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_check_fast_xmit(sta); @@ -290,15 +290,15 @@ static void ieee80211_pairwise_rekey(struct ieee80211_key *old, /* Extended Key ID key install, initial one or rekey */ if (sta->ptk_idx != INVALID_PTK_KEYIDX && - ieee80211_hw_check(&local->hw, - NO_AMPDU_KEYBORDER_SUPPORT)) { + !ieee80211_hw_check(&local->hw, AMPDU_KEYBORDER_SUPPORT)) { /* Aggregation Sessions with Extended Key ID must not * mix MPDUs with different keyIDs within one A-MPDU. - * Tear down any running Tx aggregation and all new - * Rx/Tx aggregation request during rekey if the driver - * asks us to do so. (Blocking Tx only would be - * sufficient but WLAN_STA_BLOCK_BA gets the job done - * for the few ms we need it.) + * Tear down running Tx aggregation sessions and block + * new Rx/Tx aggregation requests during rekey to + * ensure there are no A-MPDUs when the driver is not + * supporting A-MPDU key borders. (Blocking Tx only + * would be sufficient but WLAN_STA_BLOCK_BA gets the + * job done for the few ms we need it.) */ set_sta_flag(sta, WLAN_STA_BLOCK_BA); mutex_lock(&sta->ampdu_mlme.mtx); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 4c2702f128f3..29b9d57df1a3 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1048,21 +1048,15 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) } } - /* Enable Extended Key IDs when driver allowed it, or when it - * supports neither HW crypto nor A-MPDUs + /* Mac80211 and therefore all drivers using SW crypto only + * are able to handle PTK rekeys and Extended Key ID. */ - if ((!local->ops->set_key && - !ieee80211_hw_check(hw, AMPDU_AGGREGATION)) || - ieee80211_hw_check(&local->hw, EXT_KEY_ID_NATIVE)) - wiphy_ext_feature_set(local->hw.wiphy, - NL80211_EXT_FEATURE_EXT_KEY_ID); - - /* Mac80211 and therefore all cards only using SW crypto are able to - * handle PTK rekeys correctly - */ - if (!local->ops->set_key) + if (!local->ops->set_key) { wiphy_ext_feature_set(local->hw.wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); + wiphy_ext_feature_set(local->hw.wiphy, + NL80211_EXT_FEATURE_EXT_KEY_ID); + } /* * Calculate scan IE length -- we need this to alloc diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 2e7fa743c892..d09b3c789314 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -532,6 +532,61 @@ int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata, return 0; } +int mesh_add_he_cap_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u8 ie_len) +{ + const struct ieee80211_sta_he_cap *he_cap; + struct ieee80211_supported_band *sband; + u8 *pos; + + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; + + he_cap = ieee80211_get_he_iftype_cap(sband, NL80211_IFTYPE_MESH_POINT); + + if (!he_cap || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) + return 0; + + if (skb_tailroom(skb) < ie_len) + return -ENOMEM; + + pos = skb_put(skb, ie_len); + ieee80211_ie_build_he_cap(pos, he_cap, pos + ie_len); + + return 0; +} + +int mesh_add_he_oper_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb) +{ + const struct ieee80211_sta_he_cap *he_cap; + struct ieee80211_supported_band *sband; + u8 *pos; + + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; + + he_cap = ieee80211_get_he_iftype_cap(sband, NL80211_IFTYPE_MESH_POINT); + if (!he_cap || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) + return 0; + + if (skb_tailroom(skb) < 2 + 1 + sizeof(struct ieee80211_he_operation)) + return -ENOMEM; + + pos = skb_put(skb, 2 + 1 + sizeof(struct ieee80211_he_operation)); + ieee80211_ie_build_he_oper(pos); + + return 0; +} + static void ieee80211_mesh_path_timer(struct timer_list *t) { struct ieee80211_sub_if_data *sdata = @@ -677,6 +732,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) struct ieee80211_chanctx_conf *chanctx_conf; struct mesh_csa_settings *csa; enum nl80211_band band; + u8 ie_len_he_cap; u8 *pos; struct ieee80211_sub_if_data *sdata; int hdr_len = offsetofend(struct ieee80211_mgmt, u.beacon); @@ -687,6 +743,8 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) band = chanctx_conf->def.chan->band; rcu_read_unlock(); + ie_len_he_cap = ieee80211_ie_len_he_cap(sdata, + NL80211_IFTYPE_MESH_POINT); head_len = hdr_len + 2 + /* NULL SSID */ /* Channel Switch Announcement */ @@ -706,6 +764,8 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) 2 + sizeof(__le16) + /* awake window */ 2 + sizeof(struct ieee80211_vht_cap) + 2 + sizeof(struct ieee80211_vht_operation) + + ie_len_he_cap + + 2 + 1 + sizeof(struct ieee80211_he_operation) + ifmsh->ie_len; bcn = kzalloc(sizeof(*bcn) + head_len + tail_len, GFP_KERNEL); @@ -823,6 +883,8 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) mesh_add_awake_window_ie(sdata, skb) || mesh_add_vht_cap_ie(sdata, skb) || mesh_add_vht_oper_ie(sdata, skb) || + mesh_add_he_cap_ie(sdata, skb, ie_len_he_cap) || + mesh_add_he_oper_ie(sdata, skb) || mesh_add_vendor_ies(sdata, skb)) goto out_free; diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 94d57cce70da..953f720754e8 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -218,6 +218,10 @@ int mesh_add_vht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); +int mesh_add_he_cap_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u8 ie_len); +int mesh_add_he_oper_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb); void mesh_rmc_free(struct ieee80211_sub_if_data *sdata); int mesh_rmc_init(struct ieee80211_sub_if_data *sdata); void ieee80211s_init(void); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index dd3aefd052a9..737c5f4dbf52 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -218,9 +218,12 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, bool include_plid = false; u16 peering_proto = 0; u8 *pos, ie_len = 4; + u8 ie_len_he_cap; int hdr_len = offsetofend(struct ieee80211_mgmt, u.action.u.self_prot); int err = -ENOMEM; + ie_len_he_cap = ieee80211_ie_len_he_cap(sdata, + NL80211_IFTYPE_MESH_POINT); skb = dev_alloc_skb(local->tx_headroom + hdr_len + 2 + /* capability info */ @@ -233,6 +236,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, 2 + sizeof(struct ieee80211_ht_operation) + 2 + sizeof(struct ieee80211_vht_cap) + 2 + sizeof(struct ieee80211_vht_operation) + + ie_len_he_cap + + 2 + 1 + sizeof(struct ieee80211_he_operation) + 2 + 8 + /* peering IE */ sdata->u.mesh.ie_len); if (!skb) @@ -321,7 +326,9 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, if (mesh_add_ht_cap_ie(sdata, skb) || mesh_add_ht_oper_ie(sdata, skb) || mesh_add_vht_cap_ie(sdata, skb) || - mesh_add_vht_oper_ie(sdata, skb)) + mesh_add_vht_oper_ie(sdata, skb) || + mesh_add_he_cap_ie(sdata, skb, ie_len_he_cap) || + mesh_add_he_oper_ie(sdata, skb)) goto free; } @@ -433,6 +440,9 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, elems->vht_cap_elem, sta); + ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, elems->he_cap, + elems->he_cap_len, sta); + if (bw != sta->sta.bandwidth) changed |= IEEE80211_RC_BW_CHANGED; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a99ad0325309..e89ed800f012 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2512,7 +2512,10 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { ifmgd->nullfunc_failed = false; - ieee80211_send_nullfunc(sdata->local, sdata, false); + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) + ifmgd->probe_send_count--; + else + ieee80211_send_nullfunc(sdata->local, sdata, false); } else { int ssid_len; @@ -3381,6 +3384,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (elems.uora_element) bss_conf->uora_ocw_range = elems.uora_element[0]; + ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems.he_operation); + ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems.he_spr); /* TODO: OPEN: what happens if BSS color disable is set? */ } diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 60ef8972b254..c710504ccf1a 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -8,6 +8,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> + * Copyright (C) 2019 Intel Corporation */ #include <linux/export.h> #include <net/mac80211.h> @@ -732,7 +733,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, } if (local->ops->remain_on_channel) { - ret = drv_cancel_remain_on_channel(local); + ret = drv_cancel_remain_on_channel(local, roc->sdata); if (WARN_ON_ONCE(ret)) { mutex_unlock(&local->mtx); return ret; @@ -991,7 +992,7 @@ void ieee80211_roc_purge(struct ieee80211_local *local, if (roc->started) { if (local->ops->remain_on_channel) { /* can race, so ignore return value */ - drv_cancel_remain_on_channel(local); + drv_cancel_remain_on_channel(local, sdata); ieee80211_roc_notify_destroy(roc); } else { roc->abort = true; diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index 5d5348bc41ec..5397c6dad056 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -60,15 +60,6 @@ static inline void rate_control_add_sta_debugfs(struct sta_info *sta) #endif } -static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) -{ -#ifdef CONFIG_MAC80211_DEBUGFS - struct rate_control_ref *ref = sta->rate_ctrl; - if (ref && ref->ops->remove_sta_debugfs) - ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv); -#endif -} - void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata); /* Get a reference to the rate control algorithm. If `name' is NULL, get the diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 95eb8220e2e4..fb6614f57cbc 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1065,7 +1065,6 @@ static void __sta_info_destroy_part2(struct sta_info *sta) cfg80211_del_sta_sinfo(sdata->dev, sta->sta.addr, sinfo, GFP_KERNEL); kfree(sinfo); - rate_control_remove_sta_debugfs(sta); ieee80211_sta_debugfs_remove(sta); cleanup_single_sta(sta); diff --git a/net/mac80211/status.c b/net/mac80211/status.c index a88e3bf17e9d..f03aa8924d23 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -254,7 +254,8 @@ static void ieee80211_set_bar_pending(struct sta_info *sta, u8 tid, u16 ssn) tid_tx->bar_pending = true; } -static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info) +static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info, + struct ieee80211_tx_status *status) { int len = sizeof(struct ieee80211_radiotap_header); @@ -272,7 +273,14 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info) /* IEEE80211_RADIOTAP_MCS * IEEE80211_RADIOTAP_VHT */ - if (info->status.rates[0].idx >= 0) { + if (status && status->rate) { + if (status->rate->flags & RATE_INFO_FLAGS_MCS) + len += 3; + else if (status->rate->flags & RATE_INFO_FLAGS_VHT_MCS) + len = ALIGN(len, 2) + 12; + else if (status->rate->flags & RATE_INFO_FLAGS_HE_MCS) + len = ALIGN(len, 2) + 12; + } else if (info->status.rates[0].idx >= 0) { if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS) len += 3; else if (info->status.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) @@ -286,12 +294,14 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_local *local, struct ieee80211_supported_band *sband, struct sk_buff *skb, int retry_count, - int rtap_len, int shift) + int rtap_len, int shift, + struct ieee80211_tx_status *status) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct ieee80211_radiotap_header *rthdr; unsigned char *pos; + u16 legacy_rate = 0; u16 txflags; rthdr = skb_push(skb, rtap_len); @@ -310,14 +320,22 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local, */ /* IEEE80211_RADIOTAP_RATE */ - if (info->status.rates[0].idx >= 0 && - !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS | - IEEE80211_TX_RC_VHT_MCS))) { - u16 rate; + if (status && status->rate && !(status->rate->flags & + (RATE_INFO_FLAGS_MCS | + RATE_INFO_FLAGS_60G | + RATE_INFO_FLAGS_VHT_MCS | + RATE_INFO_FLAGS_HE_MCS))) + legacy_rate = status->rate->legacy; + else if (info->status.rates[0].idx >= 0 && + !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS | + IEEE80211_TX_RC_VHT_MCS))) + legacy_rate = + sband->bitrates[info->status.rates[0].idx].bitrate; + + if (legacy_rate) { rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE); - rate = sband->bitrates[info->status.rates[0].idx].bitrate; - *pos = DIV_ROUND_UP(rate, 5 * (1 << shift)); + *pos = DIV_ROUND_UP(legacy_rate, 5 * (1 << shift)); /* padding for tx flags */ pos += 2; } @@ -341,7 +359,139 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local, *pos = retry_count; pos++; - if (info->status.rates[0].idx < 0) + if (status && status->rate && + (status->rate->flags & RATE_INFO_FLAGS_MCS)) { + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS); + pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS | + IEEE80211_RADIOTAP_MCS_HAVE_GI | + IEEE80211_RADIOTAP_MCS_HAVE_BW; + if (status->rate->flags & RATE_INFO_FLAGS_SHORT_GI) + pos[1] |= IEEE80211_RADIOTAP_MCS_SGI; + if (status->rate->bw == RATE_INFO_BW_40) + pos[1] |= IEEE80211_RADIOTAP_MCS_BW_40; + pos[2] = status->rate->mcs; + pos += 3; + } else if (status && status->rate && + (status->rate->flags & RATE_INFO_FLAGS_VHT_MCS)) { + u16 known = local->hw.radiotap_vht_details & + (IEEE80211_RADIOTAP_VHT_KNOWN_GI | + IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH); + + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT); + + /* required alignment from rthdr */ + pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2); + + /* u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* */ + put_unaligned_le16(known, pos); + pos += 2; + + /* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* */ + if (status->rate->flags & RATE_INFO_FLAGS_SHORT_GI) + *pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI; + pos++; + + /* u8 bandwidth */ + switch (status->rate->bw) { + case RATE_INFO_BW_160: + *pos = 11; + break; + case RATE_INFO_BW_80: + *pos = 2; + break; + case RATE_INFO_BW_40: + *pos = 1; + break; + default: + *pos = 0; + break; + } + + /* u8 mcs_nss[4] */ + *pos = (status->rate->mcs << 4) | status->rate->nss; + pos += 4; + + /* u8 coding */ + pos++; + /* u8 group_id */ + pos++; + /* u16 partial_aid */ + pos += 2; + } else if (status && status->rate && + (status->rate->flags & RATE_INFO_FLAGS_HE_MCS)) { + struct ieee80211_radiotap_he *he; + + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE); + + /* required alignment from rthdr */ + pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2); + he = (struct ieee80211_radiotap_he *)pos; + + he->data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_SU | + IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN | + IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN | + IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN); + + he->data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN); + +#define HE_PREP(f, val) le16_encode_bits(val, IEEE80211_RADIOTAP_HE_##f) + + he->data6 |= HE_PREP(DATA6_NSTS, status->rate->nss); + +#define CHECK_GI(s) \ + BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_GI_##s != \ + (int)NL80211_RATE_INFO_HE_GI_##s) + + CHECK_GI(0_8); + CHECK_GI(1_6); + CHECK_GI(3_2); + + he->data3 |= HE_PREP(DATA3_DATA_MCS, status->rate->mcs); + he->data3 |= HE_PREP(DATA3_DATA_DCM, status->rate->he_dcm); + + he->data5 |= HE_PREP(DATA5_GI, status->rate->he_gi); + + switch (status->rate->bw) { + case RATE_INFO_BW_20: + he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC, + IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_20MHZ); + break; + case RATE_INFO_BW_40: + he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC, + IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_40MHZ); + break; + case RATE_INFO_BW_80: + he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC, + IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_80MHZ); + break; + case RATE_INFO_BW_160: + he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC, + IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_160MHZ); + break; + case RATE_INFO_BW_HE_RU: +#define CHECK_RU_ALLOC(s) \ + BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_##s##T != \ + NL80211_RATE_INFO_HE_RU_ALLOC_##s + 4) + + CHECK_RU_ALLOC(26); + CHECK_RU_ALLOC(52); + CHECK_RU_ALLOC(106); + CHECK_RU_ALLOC(242); + CHECK_RU_ALLOC(484); + CHECK_RU_ALLOC(996); + CHECK_RU_ALLOC(2x996); + + he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC, + status->rate->he_ru_alloc + 4); + break; + default: + WARN_ONCE(1, "Invalid SU BW %d\n", status->rate->bw); + } + + pos += sizeof(struct ieee80211_radiotap_he); + } + + if ((status && status->rate) || info->status.rates[0].idx < 0) return; /* IEEE80211_RADIOTAP_MCS @@ -645,7 +795,8 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw, void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_supported_band *sband, - int retry_count, int shift, bool send_to_cooked) + int retry_count, int shift, bool send_to_cooked, + struct ieee80211_tx_status *status) { struct sk_buff *skb2; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -654,14 +805,14 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, int rtap_len; /* send frame to monitor interfaces now */ - rtap_len = ieee80211_tx_radiotap_len(info); + rtap_len = ieee80211_tx_radiotap_len(info, status); if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) { pr_err("ieee80211_tx_status: headroom too small\n"); dev_kfree_skb(skb); return; } ieee80211_add_tx_radiotap_header(local, sband, skb, retry_count, - rtap_len, shift); + rtap_len, shift, status); /* XXX: is this sufficient for BPF? */ skb_reset_mac_header(skb); @@ -901,7 +1052,8 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, } /* send to monitor interfaces */ - ieee80211_tx_monitor(local, skb, sband, retry_count, shift, send_to_cooked); + ieee80211_tx_monitor(local, skb, sband, retry_count, shift, + send_to_cooked, status); } void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index 3bb4459b52c7..4768322dc202 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -1242,9 +1242,10 @@ TRACE_EVENT(drv_remain_on_channel, ) ); -DEFINE_EVENT(local_only_evt, drv_cancel_remain_on_channel, - TP_PROTO(struct ieee80211_local *local), - TP_ARGS(local) +DEFINE_EVENT(local_sdata_evt, drv_cancel_remain_on_channel, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) ); TRACE_EVENT(drv_set_ringparam, diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index f13eb2f61ccf..235c6377a203 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3546,6 +3546,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw, ieee80211_tx_result r; struct ieee80211_vif *vif = txq->vif; + WARN_ON_ONCE(softirq_count() == 0); + begin: spin_lock_bh(&fq->lock); @@ -4647,7 +4649,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, if (!sband) return bcn; - ieee80211_tx_monitor(hw_to_local(hw), copy, sband, 1, shift, false); + ieee80211_tx_monitor(hw_to_local(hw), copy, sband, 1, shift, false, + NULL); return bcn; } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 1b224fa27367..caa317faee3c 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1200,6 +1200,13 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, elems->cisco_dtpc_elem = pos; break; + case WLAN_EID_ADDBA_EXT: + if (elen != sizeof(struct ieee80211_addba_ext_ie)) { + elem_parse_failed = true; + break; + } + elems->addba_ext_ie = (void *)pos; + break; case WLAN_EID_TIMEOUT_INTERVAL: if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) elems->timeout_int = (void *)pos; @@ -1233,6 +1240,10 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION && elen == 3) { elems->mbssid_config_ie = (void *)&pos[1]; + } else if (pos[0] == WLAN_EID_EXT_HE_SPR && + elen >= sizeof(*elems->he_spr) && + elen >= ieee80211_he_spr_size(&pos[1])) { + elems->he_spr = (void *)&pos[1]; } break; default: @@ -2702,6 +2713,27 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, return pos; } +u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) +{ + const struct ieee80211_sta_he_cap *he_cap; + struct ieee80211_supported_band *sband; + u8 n; + + sband = ieee80211_get_sband(sdata); + if (!sband) + return 0; + + he_cap = ieee80211_get_he_iftype_cap(sband, iftype); + if (!he_cap) + return 0; + + n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); + return 2 + 1 + + sizeof(he_cap->he_cap_elem) + n + + ieee80211_he_ppe_size(he_cap->ppe_thres[0], + he_cap->he_cap_elem.phy_cap_info); +} + u8 *ieee80211_ie_build_he_cap(u8 *pos, const struct ieee80211_sta_he_cap *he_cap, u8 *end) @@ -2891,6 +2923,34 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, return pos + sizeof(struct ieee80211_vht_operation); } +u8 *ieee80211_ie_build_he_oper(u8 *pos) +{ + struct ieee80211_he_operation *he_oper; + u32 he_oper_params; + + *pos++ = WLAN_EID_EXTENSION; + *pos++ = 1 + sizeof(struct ieee80211_he_operation); + *pos++ = WLAN_EID_EXT_HE_OPERATION; + + he_oper_params = 0; + he_oper_params |= u32_encode_bits(1023, /* disabled */ + IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); + he_oper_params |= u32_encode_bits(1, + IEEE80211_HE_OPERATION_ER_SU_DISABLE); + he_oper_params |= u32_encode_bits(1, + IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); + + he_oper = (struct ieee80211_he_operation *)pos; + he_oper->he_oper_params = cpu_to_le32(he_oper_params); + + /* don't require special HE peer rates */ + he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); + + /* TODO add VHT operational and 6GHz operational subelement? */ + + return pos + sizeof(struct ieee80211_vht_operation); +} + bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, struct cfg80211_chan_def *chandef) { diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index ee72779729e5..91bf32af55e9 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -946,7 +946,8 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx) info = IEEE80211_SKB_CB(skb); - if (info->control.hw_key) + if (info->control.hw_key && + !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIE)) return TX_CONTINUE; if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie))) @@ -962,6 +963,9 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx) bip_ipn_set64(mmie->sequence_number, pn64); + if (info->control.hw_key) + return TX_CONTINUE; + bip_aad(skb, aad); /* diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 67f8360dfcee..63cf7131f601 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -217,6 +217,8 @@ config LIB80211_CRYPT_WEP config LIB80211_CRYPT_CCMP tristate + select CRYPTO_AES + select CRYPTO_CCM config LIB80211_CRYPT_TKIP tristate diff --git a/net/wireless/core.c b/net/wireless/core.c index 45d9afcff6d5..742986c73490 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -142,12 +142,10 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, if (result) return result; - if (rdev->wiphy.debugfsdir && - !debugfs_rename(rdev->wiphy.debugfsdir->d_parent, - rdev->wiphy.debugfsdir, - rdev->wiphy.debugfsdir->d_parent, - newname)) - pr_err("failed to rename debugfs dir to %s!\n", newname); + if (rdev->wiphy.debugfsdir) + debugfs_rename(rdev->wiphy.debugfsdir->d_parent, + rdev->wiphy.debugfsdir, + rdev->wiphy.debugfsdir->d_parent, newname); nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY); @@ -899,11 +897,8 @@ int wiphy_register(struct wiphy *wiphy) cfg80211_rdev_list_generation++; /* add to debugfs */ - rdev->wiphy.debugfsdir = - debugfs_create_dir(wiphy_name(&rdev->wiphy), - ieee80211_debugfs_dir); - if (IS_ERR(rdev->wiphy.debugfsdir)) - rdev->wiphy.debugfsdir = NULL; + rdev->wiphy.debugfsdir = debugfs_create_dir(wiphy_name(&rdev->wiphy), + ieee80211_debugfs_dir); cfg80211_debugfs_rdev_add(rdev); nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY); diff --git a/net/wireless/core.h b/net/wireless/core.h index ee8388fe4a92..77556c58d9ac 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -306,6 +306,8 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy); void cfg80211_bss_expire(struct cfg80211_registered_device *rdev); void cfg80211_bss_age(struct cfg80211_registered_device *rdev, unsigned long age_secs); +void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev, + struct ieee80211_channel *channel); /* IBSS */ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c index 7e8ff9d7dcfa..6a5f08f7491e 100644 --- a/net/wireless/lib80211_crypt_ccmp.c +++ b/net/wireless/lib80211_crypt_ccmp.c @@ -22,6 +22,7 @@ #include <linux/ieee80211.h> #include <linux/crypto.h> +#include <crypto/aead.h> #include <net/lib80211.h> @@ -48,20 +49,13 @@ struct lib80211_ccmp_data { int key_idx; - struct crypto_cipher *tfm; + struct crypto_aead *tfm; /* scratch buffers for virt_to_page() (crypto API) */ - u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], - tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; - u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; + u8 tx_aad[2 * AES_BLOCK_LEN]; + u8 rx_aad[2 * AES_BLOCK_LEN]; }; -static inline void lib80211_ccmp_aes_encrypt(struct crypto_cipher *tfm, - const u8 pt[16], u8 ct[16]) -{ - crypto_cipher_encrypt_one(tfm, ct, pt); -} - static void *lib80211_ccmp_init(int key_idx) { struct lib80211_ccmp_data *priv; @@ -71,7 +65,7 @@ static void *lib80211_ccmp_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tfm = crypto_alloc_cipher("aes", 0, 0); + priv->tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tfm)) { priv->tfm = NULL; goto fail; @@ -82,7 +76,7 @@ static void *lib80211_ccmp_init(int key_idx) fail: if (priv) { if (priv->tfm) - crypto_free_cipher(priv->tfm); + crypto_free_aead(priv->tfm); kfree(priv); } @@ -93,25 +87,16 @@ static void lib80211_ccmp_deinit(void *priv) { struct lib80211_ccmp_data *_priv = priv; if (_priv && _priv->tfm) - crypto_free_cipher(_priv->tfm); + crypto_free_aead(_priv->tfm); kfree(priv); } -static inline void xor_block(u8 * b, u8 * a, size_t len) -{ - int i; - for (i = 0; i < len; i++) - b[i] ^= a[i]; -} - -static void ccmp_init_blocks(struct crypto_cipher *tfm, - struct ieee80211_hdr *hdr, - u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0) +static int ccmp_init_iv_and_aad(const struct ieee80211_hdr *hdr, + const u8 *pn, u8 *iv, u8 *aad) { u8 *pos, qc = 0; size_t aad_len; int a4_included, qc_included; - u8 aad[2 * AES_BLOCK_LEN]; a4_included = ieee80211_has_a4(hdr->frame_control); qc_included = ieee80211_is_data_qos(hdr->frame_control); @@ -127,17 +112,19 @@ static void ccmp_init_blocks(struct crypto_cipher *tfm, aad_len += 2; } - /* CCM Initial Block: - * Flag (Include authentication header, M=3 (8-octet MIC), - * L=1 (2-octet Dlen)) - * Nonce: 0x00 | A2 | PN - * Dlen */ - b0[0] = 0x59; - b0[1] = qc; - memcpy(b0 + 2, hdr->addr2, ETH_ALEN); - memcpy(b0 + 8, pn, CCMP_PN_LEN); - b0[14] = (dlen >> 8) & 0xff; - b0[15] = dlen & 0xff; + /* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC + * mode authentication are not allowed to collide, yet both are derived + * from the same vector. We only set L := 1 here to indicate that the + * data size can be represented in (L+1) bytes. The CCM layer will take + * care of storing the data length in the top (L+1) bytes and setting + * and clearing the other bits as is required to derive the two IVs. + */ + iv[0] = 0x1; + + /* Nonce: QC | A2 | PN */ + iv[1] = qc; + memcpy(iv + 2, hdr->addr2, ETH_ALEN); + memcpy(iv + 8, pn, CCMP_PN_LEN); /* AAD: * FC with bits 4..6 and 11..13 masked to zero; 14 is always one @@ -147,31 +134,20 @@ static void ccmp_init_blocks(struct crypto_cipher *tfm, * QC (if present) */ pos = (u8 *) hdr; - aad[0] = 0; /* aad_len >> 8 */ - aad[1] = aad_len & 0xff; - aad[2] = pos[0] & 0x8f; - aad[3] = pos[1] & 0xc7; - memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); + aad[0] = pos[0] & 0x8f; + aad[1] = pos[1] & 0xc7; + memcpy(aad + 2, hdr->addr1, 3 * ETH_ALEN); pos = (u8 *) & hdr->seq_ctrl; - aad[22] = pos[0] & 0x0f; - aad[23] = 0; /* all bits masked */ - memset(aad + 24, 0, 8); + aad[20] = pos[0] & 0x0f; + aad[21] = 0; /* all bits masked */ + memset(aad + 22, 0, 8); if (a4_included) - memcpy(aad + 24, hdr->addr4, ETH_ALEN); + memcpy(aad + 22, hdr->addr4, ETH_ALEN); if (qc_included) { - aad[a4_included ? 30 : 24] = qc; + aad[a4_included ? 28 : 22] = qc; /* rest of QC masked */ } - - /* Start with the first block and AAD */ - lib80211_ccmp_aes_encrypt(tfm, b0, auth); - xor_block(auth, aad, AES_BLOCK_LEN); - lib80211_ccmp_aes_encrypt(tfm, auth, auth); - xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); - lib80211_ccmp_aes_encrypt(tfm, auth, auth); - b0[0] &= 0x07; - b0[14] = b0[15] = 0; - lib80211_ccmp_aes_encrypt(tfm, b0, s0); + return aad_len; } static int lib80211_ccmp_hdr(struct sk_buff *skb, int hdr_len, @@ -214,13 +190,13 @@ static int lib80211_ccmp_hdr(struct sk_buff *skb, int hdr_len, static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct lib80211_ccmp_data *key = priv; - int data_len, i, blocks, last, len; - u8 *pos, *mic; struct ieee80211_hdr *hdr; - u8 *b0 = key->tx_b0; - u8 *b = key->tx_b; - u8 *e = key->tx_e; - u8 *s0 = key->tx_s0; + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->tx_aad; + u8 iv[AES_BLOCK_LEN]; + int len, data_len, aad_len; + int ret; if (skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len) return -1; @@ -230,31 +206,28 @@ static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) if (len < 0) return -1; - pos = skb->data + hdr_len + CCMP_HDR_LEN; + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if (!req) + return -ENOMEM; + hdr = (struct ieee80211_hdr *)skb->data; - ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Authentication */ - xor_block(b, pos, len); - lib80211_ccmp_aes_encrypt(key->tfm, b, b); - /* Encryption, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - lib80211_ccmp_aes_encrypt(key->tfm, b0, e); - xor_block(pos, e, len); - pos += len; - } + aad_len = ccmp_init_iv_and_aad(hdr, key->tx_pn, iv, aad); - mic = skb_put(skb, CCMP_MIC_LEN); - for (i = 0; i < CCMP_MIC_LEN; i++) - mic[i] = b[i] ^ s0[i]; + skb_put(skb, CCMP_MIC_LEN); - return 0; + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], skb->data + hdr_len + CCMP_HDR_LEN, + data_len + CCMP_MIC_LEN); + + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_encrypt(req); + aead_request_free(req); + + return ret; } /* @@ -283,13 +256,13 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) struct lib80211_ccmp_data *key = priv; u8 keyidx, *pos; struct ieee80211_hdr *hdr; - u8 *b0 = key->rx_b0; - u8 *b = key->rx_b; - u8 *a = key->rx_a; + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->rx_aad; + u8 iv[AES_BLOCK_LEN]; u8 pn[6]; - int i, blocks, last, len; - size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; - u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; + int aad_len, ret; + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN; if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) { key->dot11RSNAStatsCCMPFormatErrors++; @@ -337,28 +310,26 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return -4; } - ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); - xor_block(mic, b, CCMP_MIC_LEN); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Decrypt, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - lib80211_ccmp_aes_encrypt(key->tfm, b0, b); - xor_block(pos, b, len); - /* Authentication */ - xor_block(a, pos, len); - lib80211_ccmp_aes_encrypt(key->tfm, a, a); - pos += len; - } + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if (!req) + return -ENOMEM; - if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { - net_dbg_ratelimited("CCMP: decrypt failed: STA=%pM\n", - hdr->addr2); + aad_len = ccmp_init_iv_and_aad(hdr, pn, iv, aad); + + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], pos, data_len); + + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_decrypt(req); + aead_request_free(req); + + if (ret) { + net_dbg_ratelimited("CCMP: decrypt failed: STA=%pM (%d)\n", + hdr->addr2, ret); key->dot11RSNAStatsCCMPDecryptErrors++; return -5; } @@ -377,7 +348,7 @@ static int lib80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv) { struct lib80211_ccmp_data *data = priv; int keyidx; - struct crypto_cipher *tfm = data->tfm; + struct crypto_aead *tfm = data->tfm; keyidx = data->key_idx; memset(data, 0, sizeof(*data)); @@ -394,7 +365,9 @@ static int lib80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv) data->rx_pn[4] = seq[1]; data->rx_pn[5] = seq[0]; } - crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN); + if (crypto_aead_setauthsize(data->tfm, CCMP_MIC_LEN) || + crypto_aead_setkey(data->tfm, data->key, CCMP_TK_LEN)) + return -1; } else if (len == 0) data->key_set = 0; else diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index fc83dd179c1a..1a107f29016b 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -281,7 +281,16 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = { NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy), }; +static const struct nla_policy +he_obss_pd_policy[NL80211_HE_OBSS_PD_ATTR_MAX + 1] = { + [NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET] = + NLA_POLICY_RANGE(NLA_U8, 1, 20), + [NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET] = + NLA_POLICY_RANGE(NLA_U8, 1, 20), +}; + const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { + [0] = { .strict_start_type = NL80211_ATTR_HE_OBSS_PD }, [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, .len = 20-1 }, @@ -574,6 +583,7 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY, .len = SAE_PASSWORD_MAX_LEN }, [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG }, + [NL80211_ATTR_HE_OBSS_PD] = NLA_POLICY_NESTED(he_obss_pd_policy), }; /* policy for the key attributes */ @@ -749,17 +759,25 @@ int nl80211_prepare_wdev_dump(struct netlink_callback *cb, int err; if (!cb->args[0]) { + struct nlattr **attrbuf; + + attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), + GFP_KERNEL); + if (!attrbuf) + return -ENOMEM; + err = nlmsg_parse_deprecated(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, - genl_family_attrbuf(&nl80211_fam), - nl80211_fam.maxattr, + attrbuf, nl80211_fam.maxattr, nl80211_policy, NULL); - if (err) + if (err) { + kfree(attrbuf); return err; + } - *wdev = __cfg80211_wdev_from_attrs( - sock_net(cb->skb->sk), - genl_family_attrbuf(&nl80211_fam)); + *wdev = __cfg80211_wdev_from_attrs(sock_net(cb->skb->sk), + attrbuf); + kfree(attrbuf); if (IS_ERR(*wdev)) return PTR_ERR(*wdev); *rdev = wiphy_to_rdev((*wdev)->wiphy); @@ -2172,6 +2190,30 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, rdev->wiphy.vht_capa_mod_mask)) goto nla_put_failure; + if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, + rdev->wiphy.perm_addr)) + goto nla_put_failure; + + if (!is_zero_ether_addr(rdev->wiphy.addr_mask) && + nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN, + rdev->wiphy.addr_mask)) + goto nla_put_failure; + + if (rdev->wiphy.n_addresses > 1) { + void *attr; + + attr = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); + if (!attr) + goto nla_put_failure; + + for (i = 0; i < rdev->wiphy.n_addresses; i++) + if (nla_put(msg, i + 1, ETH_ALEN, + rdev->wiphy.addresses[i].addr)) + goto nla_put_failure; + + nla_nest_end(msg, attr); + } + state->split_start++; break; case 10: @@ -2366,14 +2408,21 @@ static int nl80211_dump_wiphy_parse(struct sk_buff *skb, struct netlink_callback *cb, struct nl80211_dump_wiphy_state *state) { - struct nlattr **tb = genl_family_attrbuf(&nl80211_fam); - int ret = nlmsg_parse_deprecated(cb->nlh, - GENL_HDRLEN + nl80211_fam.hdrsize, - tb, nl80211_fam.maxattr, - nl80211_policy, NULL); + struct nlattr **tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL); + int ret; + + if (!tb) + return -ENOMEM; + + ret = nlmsg_parse_deprecated(cb->nlh, + GENL_HDRLEN + nl80211_fam.hdrsize, + tb, nl80211_fam.maxattr, + nl80211_policy, NULL); /* ignore parse errors for backward compatibility */ - if (ret) - return 0; + if (ret) { + ret = 0; + goto out; + } state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; if (tb[NL80211_ATTR_WIPHY]) @@ -2386,8 +2435,10 @@ static int nl80211_dump_wiphy_parse(struct sk_buff *skb, int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); - if (!netdev) - return -ENODEV; + if (!netdev) { + ret = -ENODEV; + goto out; + } if (netdev->ieee80211_ptr) { rdev = wiphy_to_rdev( netdev->ieee80211_ptr->wiphy); @@ -2395,7 +2446,10 @@ static int nl80211_dump_wiphy_parse(struct sk_buff *skb, } } - return 0; + ret = 0; +out: + kfree(tb); + return ret; } static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) @@ -4361,6 +4415,34 @@ static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev, return 0; } +static int nl80211_parse_he_obss_pd(struct nlattr *attrs, + struct ieee80211_he_obss_pd *he_obss_pd) +{ + struct nlattr *tb[NL80211_HE_OBSS_PD_ATTR_MAX + 1]; + int err; + + err = nla_parse_nested(tb, NL80211_HE_OBSS_PD_ATTR_MAX, attrs, + he_obss_pd_policy, NULL); + if (err) + return err; + + if (!tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET] || + !tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET]) + return -EINVAL; + + he_obss_pd->min_offset = + nla_get_u32(tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET]); + he_obss_pd->max_offset = + nla_get_u32(tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET]); + + if (he_obss_pd->min_offset >= he_obss_pd->max_offset) + return -EINVAL; + + he_obss_pd->enable = true; + + return 0; +} + static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params, const u8 *rates) { @@ -4645,6 +4727,14 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) params.twt_responder = nla_get_flag(info->attrs[NL80211_ATTR_TWT_RESPONDER]); + if (info->attrs[NL80211_ATTR_HE_OBSS_PD]) { + err = nl80211_parse_he_obss_pd( + info->attrs[NL80211_ATTR_HE_OBSS_PD], + ¶ms.he_obss_pd); + if (err) + return err; + } + nl80211_calculate_ap_params(¶ms); if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT]) @@ -8700,7 +8790,7 @@ static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) { - struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam); + struct nlattr **attrbuf; struct survey_info survey; struct cfg80211_registered_device *rdev; struct wireless_dev *wdev; @@ -8708,6 +8798,10 @@ static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) int res; bool radio_stats; + attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL); + if (!attrbuf) + return -ENOMEM; + rtnl_lock(); res = nl80211_prepare_wdev_dump(cb, &rdev, &wdev); if (res) @@ -8752,6 +8846,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) cb->args[2] = survey_idx; res = skb->len; out_err: + kfree(attrbuf); rtnl_unlock(); return res; } @@ -9611,6 +9706,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg80211_registered_device *rdev; + struct nlattr **attrbuf = NULL; int err; long phy_idx; void *data = NULL; @@ -9631,7 +9727,12 @@ static int nl80211_testmode_dump(struct sk_buff *skb, goto out_err; } } else { - struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam); + attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), + GFP_KERNEL); + if (!attrbuf) { + err = -ENOMEM; + goto out_err; + } err = nlmsg_parse_deprecated(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, @@ -9698,6 +9799,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb, /* see above */ cb->args[0] = phy_idx + 1; out_err: + kfree(attrbuf); rtnl_unlock(); return err; } @@ -12791,7 +12893,7 @@ static int nl80211_prepare_vendor_dump(struct sk_buff *skb, struct cfg80211_registered_device **rdev, struct wireless_dev **wdev) { - struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam); + struct nlattr **attrbuf; u32 vid, subcmd; unsigned int i; int vcmd_idx = -1; @@ -12822,24 +12924,32 @@ static int nl80211_prepare_vendor_dump(struct sk_buff *skb, return 0; } + attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL); + if (!attrbuf) + return -ENOMEM; + err = nlmsg_parse_deprecated(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf, nl80211_fam.maxattr, nl80211_policy, NULL); if (err) - return err; + goto out; if (!attrbuf[NL80211_ATTR_VENDOR_ID] || - !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) - return -EINVAL; + !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) { + err = -EINVAL; + goto out; + } *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf); if (IS_ERR(*wdev)) *wdev = NULL; *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf); - if (IS_ERR(*rdev)) - return PTR_ERR(*rdev); + if (IS_ERR(*rdev)) { + err = PTR_ERR(*rdev); + goto out; + } vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]); subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]); @@ -12852,15 +12962,19 @@ static int nl80211_prepare_vendor_dump(struct sk_buff *skb, if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) continue; - if (!vcmd->dumpit) - return -EOPNOTSUPP; + if (!vcmd->dumpit) { + err = -EOPNOTSUPP; + goto out; + } vcmd_idx = i; break; } - if (vcmd_idx < 0) - return -EOPNOTSUPP; + if (vcmd_idx < 0) { + err = -EOPNOTSUPP; + goto out; + } if (attrbuf[NL80211_ATTR_VENDOR_DATA]) { data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]); @@ -12871,7 +12985,7 @@ static int nl80211_prepare_vendor_dump(struct sk_buff *skb, attrbuf[NL80211_ATTR_VENDOR_DATA], cb->extack); if (err) - return err; + goto out; } /* 0 is the first index - add 1 to parse only once */ @@ -12883,7 +12997,10 @@ static int nl80211_prepare_vendor_dump(struct sk_buff *skb, cb->args[4] = data_len; /* keep rtnl locked in successful case */ - return 0; + err = 0; +out: + kfree(attrbuf); + return err; } static int nl80211_vendor_cmd_dump(struct sk_buff *skb, @@ -14561,6 +14678,7 @@ static struct genl_family nl80211_fam __ro_after_init = { .n_ops = ARRAY_SIZE(nl80211_ops), .mcgrps = nl80211_mcgrps, .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps), + .parallel_ops = true, }; /* notification functions */ @@ -16092,7 +16210,9 @@ void cfg80211_ch_switch_notify(struct net_device *dev, if (wdev->iftype == NL80211_IFTYPE_STATION && !WARN_ON(!wdev->current_bss)) - wdev->current_bss->pub.channel = chandef->chan; + cfg80211_update_assoc_bss_entry(wdev, chandef->chan); + + cfg80211_sched_dfs_chan_update(rdev); nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, NL80211_CMD_CH_SWITCH_NOTIFY, 0); diff --git a/net/wireless/scan.c b/net/wireless/scan.c index d66e6d4b7555..d313c9befa23 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1091,6 +1091,93 @@ struct cfg80211_non_tx_bss { u8 bssid_index; }; +static bool +cfg80211_update_known_bss(struct cfg80211_registered_device *rdev, + struct cfg80211_internal_bss *known, + struct cfg80211_internal_bss *new, + bool signal_valid) +{ + lockdep_assert_held(&rdev->bss_lock); + + /* Update IEs */ + if (rcu_access_pointer(new->pub.proberesp_ies)) { + const struct cfg80211_bss_ies *old; + + old = rcu_access_pointer(known->pub.proberesp_ies); + + rcu_assign_pointer(known->pub.proberesp_ies, + new->pub.proberesp_ies); + /* Override possible earlier Beacon frame IEs */ + rcu_assign_pointer(known->pub.ies, + new->pub.proberesp_ies); + if (old) + kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head); + } else if (rcu_access_pointer(new->pub.beacon_ies)) { + const struct cfg80211_bss_ies *old; + struct cfg80211_internal_bss *bss; + + if (known->pub.hidden_beacon_bss && + !list_empty(&known->hidden_list)) { + const struct cfg80211_bss_ies *f; + + /* The known BSS struct is one of the probe + * response members of a group, but we're + * receiving a beacon (beacon_ies in the new + * bss is used). This can only mean that the + * AP changed its beacon from not having an + * SSID to showing it, which is confusing so + * drop this information. + */ + + f = rcu_access_pointer(new->pub.beacon_ies); + kfree_rcu((struct cfg80211_bss_ies *)f, rcu_head); + return false; + } + + old = rcu_access_pointer(known->pub.beacon_ies); + + rcu_assign_pointer(known->pub.beacon_ies, new->pub.beacon_ies); + + /* Override IEs if they were from a beacon before */ + if (old == rcu_access_pointer(known->pub.ies)) + rcu_assign_pointer(known->pub.ies, new->pub.beacon_ies); + + /* Assign beacon IEs to all sub entries */ + list_for_each_entry(bss, &known->hidden_list, hidden_list) { + const struct cfg80211_bss_ies *ies; + + ies = rcu_access_pointer(bss->pub.beacon_ies); + WARN_ON(ies != old); + + rcu_assign_pointer(bss->pub.beacon_ies, + new->pub.beacon_ies); + } + + if (old) + kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head); + } + + known->pub.beacon_interval = new->pub.beacon_interval; + + /* don't update the signal if beacon was heard on + * adjacent channel. + */ + if (signal_valid) + known->pub.signal = new->pub.signal; + known->pub.capability = new->pub.capability; + known->ts = new->ts; + known->ts_boottime = new->ts_boottime; + known->parent_tsf = new->parent_tsf; + known->pub.chains = new->pub.chains; + memcpy(known->pub.chain_signal, new->pub.chain_signal, + IEEE80211_MAX_CHAINS); + ether_addr_copy(known->parent_bssid, new->parent_bssid); + known->pub.max_bssid_indicator = new->pub.max_bssid_indicator; + known->pub.bssid_index = new->pub.bssid_index; + + return true; +} + /* Returned bss is reference counted and must be cleaned up appropriately. */ struct cfg80211_internal_bss * cfg80211_bss_update(struct cfg80211_registered_device *rdev, @@ -1114,88 +1201,8 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev, found = rb_find_bss(rdev, tmp, BSS_CMP_REGULAR); if (found) { - /* Update IEs */ - if (rcu_access_pointer(tmp->pub.proberesp_ies)) { - const struct cfg80211_bss_ies *old; - - old = rcu_access_pointer(found->pub.proberesp_ies); - - rcu_assign_pointer(found->pub.proberesp_ies, - tmp->pub.proberesp_ies); - /* Override possible earlier Beacon frame IEs */ - rcu_assign_pointer(found->pub.ies, - tmp->pub.proberesp_ies); - if (old) - kfree_rcu((struct cfg80211_bss_ies *)old, - rcu_head); - } else if (rcu_access_pointer(tmp->pub.beacon_ies)) { - const struct cfg80211_bss_ies *old; - struct cfg80211_internal_bss *bss; - - if (found->pub.hidden_beacon_bss && - !list_empty(&found->hidden_list)) { - const struct cfg80211_bss_ies *f; - - /* - * The found BSS struct is one of the probe - * response members of a group, but we're - * receiving a beacon (beacon_ies in the tmp - * bss is used). This can only mean that the - * AP changed its beacon from not having an - * SSID to showing it, which is confusing so - * drop this information. - */ - - f = rcu_access_pointer(tmp->pub.beacon_ies); - kfree_rcu((struct cfg80211_bss_ies *)f, - rcu_head); - goto drop; - } - - old = rcu_access_pointer(found->pub.beacon_ies); - - rcu_assign_pointer(found->pub.beacon_ies, - tmp->pub.beacon_ies); - - /* Override IEs if they were from a beacon before */ - if (old == rcu_access_pointer(found->pub.ies)) - rcu_assign_pointer(found->pub.ies, - tmp->pub.beacon_ies); - - /* Assign beacon IEs to all sub entries */ - list_for_each_entry(bss, &found->hidden_list, - hidden_list) { - const struct cfg80211_bss_ies *ies; - - ies = rcu_access_pointer(bss->pub.beacon_ies); - WARN_ON(ies != old); - - rcu_assign_pointer(bss->pub.beacon_ies, - tmp->pub.beacon_ies); - } - - if (old) - kfree_rcu((struct cfg80211_bss_ies *)old, - rcu_head); - } - - found->pub.beacon_interval = tmp->pub.beacon_interval; - /* - * don't update the signal if beacon was heard on - * adjacent channel. - */ - if (signal_valid) - found->pub.signal = tmp->pub.signal; - found->pub.capability = tmp->pub.capability; - found->ts = tmp->ts; - found->ts_boottime = tmp->ts_boottime; - found->parent_tsf = tmp->parent_tsf; - found->pub.chains = tmp->pub.chains; - memcpy(found->pub.chain_signal, tmp->pub.chain_signal, - IEEE80211_MAX_CHAINS); - ether_addr_copy(found->parent_bssid, tmp->parent_bssid); - found->pub.max_bssid_indicator = tmp->pub.max_bssid_indicator; - found->pub.bssid_index = tmp->pub.bssid_index; + if (!cfg80211_update_known_bss(rdev, found, tmp, signal_valid)) + goto drop; } else { struct cfg80211_internal_bss *new; struct cfg80211_internal_bss *hidden; @@ -1368,6 +1375,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, struct cfg80211_internal_bss tmp = {}, *res; int bss_type; bool signal_valid; + unsigned long ts; if (WARN_ON(!wiphy)) return NULL; @@ -1390,8 +1398,11 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, tmp.ts_boottime = data->boottime_ns; if (non_tx_data) { tmp.pub.transmitted_bss = non_tx_data->tx_bss; + ts = bss_from_pub(non_tx_data->tx_bss)->ts; tmp.pub.bssid_index = non_tx_data->bssid_index; tmp.pub.max_bssid_indicator = non_tx_data->max_bssid_indicator; + } else { + ts = jiffies; } /* @@ -1425,8 +1436,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, signal_valid = abs(data->chan->center_freq - channel->center_freq) <= wiphy->max_adj_channel_rssi_comp; - res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid, - jiffies); + res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid, ts); if (!res) return NULL; @@ -1440,7 +1450,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, regulatory_hint_found_beacon(wiphy, channel, gfp); } - if (non_tx_data && non_tx_data->tx_bss) { + if (non_tx_data) { /* this is a nontransmitting bss, we need to add it to * transmitting bss' list if it is not there */ @@ -1659,6 +1669,8 @@ cfg80211_inform_bss_data(struct wiphy *wiphy, res = cfg80211_inform_single_bss_data(wiphy, data, ftype, bssid, tsf, capability, beacon_interval, ie, ielen, NULL, gfp); + if (!res) + return NULL; non_tx_data.tx_bss = res; cfg80211_parse_mbssid_data(wiphy, data, ftype, bssid, tsf, beacon_interval, ie, ielen, &non_tx_data, @@ -1776,7 +1788,6 @@ static struct cfg80211_bss * cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy, struct cfg80211_inform_bss *data, struct ieee80211_mgmt *mgmt, size_t len, - struct cfg80211_non_tx_bss *non_tx_data, gfp_t gfp) { struct cfg80211_internal_bss tmp = {}, *res; @@ -1835,11 +1846,6 @@ cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy, tmp.pub.chains = data->chains; memcpy(tmp.pub.chain_signal, data->chain_signal, IEEE80211_MAX_CHAINS); ether_addr_copy(tmp.parent_bssid, data->parent_bssid); - if (non_tx_data) { - tmp.pub.transmitted_bss = non_tx_data->tx_bss; - tmp.pub.bssid_index = non_tx_data->bssid_index; - tmp.pub.max_bssid_indicator = non_tx_data->max_bssid_indicator; - } signal_valid = abs(data->chan->center_freq - channel->center_freq) <= wiphy->max_adj_channel_rssi_comp; @@ -1877,7 +1883,7 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy, struct cfg80211_non_tx_bss non_tx_data; res = cfg80211_inform_single_bss_frame_data(wiphy, data, mgmt, - len, NULL, gfp); + len, gfp); if (!res || !wiphy->support_mbssid || !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) return res; @@ -1995,6 +2001,85 @@ void cfg80211_bss_iter(struct wiphy *wiphy, } EXPORT_SYMBOL(cfg80211_bss_iter); +void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev, + struct ieee80211_channel *chan) +{ + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + struct cfg80211_internal_bss *cbss = wdev->current_bss; + struct cfg80211_internal_bss *new = NULL; + struct cfg80211_internal_bss *bss; + struct cfg80211_bss *nontrans_bss; + struct cfg80211_bss *tmp; + + spin_lock_bh(&rdev->bss_lock); + + if (WARN_ON(cbss->pub.channel == chan)) + goto done; + + /* use transmitting bss */ + if (cbss->pub.transmitted_bss) + cbss = container_of(cbss->pub.transmitted_bss, + struct cfg80211_internal_bss, + pub); + + cbss->pub.channel = chan; + + list_for_each_entry(bss, &rdev->bss_list, list) { + if (!cfg80211_bss_type_match(bss->pub.capability, + bss->pub.channel->band, + wdev->conn_bss_type)) + continue; + + if (bss == cbss) + continue; + + if (!cmp_bss(&bss->pub, &cbss->pub, BSS_CMP_REGULAR)) { + new = bss; + break; + } + } + + if (new) { + /* to save time, update IEs for transmitting bss only */ + if (cfg80211_update_known_bss(rdev, cbss, new, false)) { + new->pub.proberesp_ies = NULL; + new->pub.beacon_ies = NULL; + } + + list_for_each_entry_safe(nontrans_bss, tmp, + &new->pub.nontrans_list, + nontrans_list) { + bss = container_of(nontrans_bss, + struct cfg80211_internal_bss, pub); + if (__cfg80211_unlink_bss(rdev, bss)) + rdev->bss_generation++; + } + + WARN_ON(atomic_read(&new->hold)); + if (!WARN_ON(!__cfg80211_unlink_bss(rdev, new))) + rdev->bss_generation++; + } + + rb_erase(&cbss->rbn, &rdev->bss_tree); + rb_insert_bss(rdev, cbss); + rdev->bss_generation++; + + list_for_each_entry_safe(nontrans_bss, tmp, + &cbss->pub.nontrans_list, + nontrans_list) { + bss = container_of(nontrans_bss, + struct cfg80211_internal_bss, pub); + bss->pub.channel = chan; + rb_erase(&bss->rbn, &rdev->bss_tree); + rb_insert_bss(rdev, bss); + rdev->bss_generation++; + } + +done: + spin_unlock_bh(&rdev->bss_lock); +} + #ifdef CONFIG_CFG80211_WEXT static struct cfg80211_registered_device * cfg80211_get_dev_from_ifindex(struct net *net, int ifindex) |