From 1e1b11b6a1111cd9e8af1fd6ccda270a9fa3eacf Mon Sep 17 00:00:00 2001 From: vamsi krishna Date: Fri, 1 Feb 2019 18:34:51 +0530 Subject: nl80211/cfg80211: Specify band specific min RSSI thresholds with sched scan This commit adds the support to specify the RSSI thresholds per band for each match set. This enhances the current behavior which specifies a single rssi_threshold across all the bands by introducing the rssi_threshold_per_band. These per band rssi thresholds are referred through NL80211_BAND_* (enum nl80211_band) variables as attribute types. Such attributes/values per each band are nested through NL80211_ATTR_SCHED_SCAN_MIN_RSSI. These band specific rssi thresholds shall take precedence over the current rssi_thold per match set. Drivers indicate this support through %NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD. These per band rssi attributes/values does not specify "default RSSI filter" as done by NL80211_SCHED_SCAN_MATCH_ATTR_RSSI to stay backward compatible. That said, these per band rssi values have to be specified for the corresponding matchset. Signed-off-by: vamsi krishna Signed-off-by: Srinivas Dasari [rebase on refactoring, add policy] Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index dd4f86ee286e..4a9404958fbe 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -3638,6 +3638,14 @@ enum nl80211_reg_rule_attr { * value as specified by &struct nl80211_bss_select_rssi_adjust. * @NL80211_SCHED_SCAN_MATCH_ATTR_BSSID: BSSID to be used for matching * (this cannot be used together with SSID). + * @NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI: Nested attribute that carries the + * band specific minimum rssi thresholds for the bands defined in + * enum nl80211_band. The minimum rssi threshold value(s32) specific to a + * band shall be encapsulated in attribute with type value equals to one + * of the NL80211_BAND_* defined in enum nl80211_band. For example, the + * minimum rssi threshold value for 2.4GHZ band shall be encapsulated + * within an attribute of type NL80211_BAND_2GHZ. And one or more of such + * attributes will be nested within this attribute. * @NL80211_SCHED_SCAN_MATCH_ATTR_MAX: highest scheduled scan filter * attribute number currently defined * @__NL80211_SCHED_SCAN_MATCH_ATTR_AFTER_LAST: internal use @@ -3650,6 +3658,7 @@ enum nl80211_sched_scan_match_attr { NL80211_SCHED_SCAN_MATCH_ATTR_RELATIVE_RSSI, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI_ADJUST, NL80211_SCHED_SCAN_MATCH_ATTR_BSSID, + NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI, /* keep last */ __NL80211_SCHED_SCAN_MATCH_ATTR_AFTER_LAST, @@ -5343,6 +5352,9 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_AP_PMKSA_CACHING: Driver/device supports PMKSA caching * (set/del PMKSA operations) in AP mode. * + * @NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD: Driver supports + * filtering of sched scan results using band specific RSSI thresholds. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -5384,6 +5396,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER, NL80211_EXT_FEATURE_AIRTIME_FAIRNESS, NL80211_EXT_FEATURE_AP_PMKSA_CACHING, + NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, -- cgit v1.2.3 From ab60633c7136c300f15a390f3469d7c4be15a055 Mon Sep 17 00:00:00 2001 From: Narayanraddi Masti Date: Thu, 7 Feb 2019 12:16:05 -0800 Subject: mac80211: Add support for NL80211_STA_INFO_AIRTIME_LINK_METRIC Add support for mesh airtime link metric attribute NL80211_STA_INFO_AIRTIME_LINK_METRIC. Signed-off-by: Narayanraddi Masti Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 3 +++ include/uapi/linux/nl80211.h | 2 ++ net/mac80211/mesh.h | 2 ++ net/mac80211/mesh_hwmp.c | 4 ++-- net/mac80211/sta_info.c | 6 ++++++ net/wireless/nl80211.c | 1 + 6 files changed, 16 insertions(+), 2 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index b13234a486e7..5859a5e02454 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1327,6 +1327,7 @@ struct cfg80211_tid_stats { * @fcs_err_count: number of packets (MPDUs) received from this station with * an FCS error. This counter should be incremented only when TA of the * received packet with an FCS error matches the peer MAC address. + * @airtime_link_metric: mesh airtime link metric. */ struct station_info { u64 filled; @@ -1381,6 +1382,8 @@ struct station_info { u32 rx_mpdu_count; u32 fcs_err_count; + + u32 airtime_link_metric; }; #if IS_ENABLED(CONFIG_CFG80211) diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 4a9404958fbe..07457f4aea00 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -3139,6 +3139,7 @@ enum nl80211_sta_bss_param { * @NL80211_STA_INFO_TX_DURATION: aggregate PPDU duration for all frames * sent to the station (u64, usec) * @NL80211_STA_INFO_AIRTIME_WEIGHT: current airtime weight for station (u16) + * @NL80211_STA_INFO_AIRTIME_LINK_METRIC: airtime link metric for mesh station * @__NL80211_STA_INFO_AFTER_LAST: internal * @NL80211_STA_INFO_MAX: highest possible station info attribute */ @@ -3184,6 +3185,7 @@ enum nl80211_sta_info { NL80211_STA_INFO_CONNECTED_TO_GATE, NL80211_STA_INFO_TX_DURATION, NL80211_STA_INFO_AIRTIME_WEIGHT, + NL80211_STA_INFO_AIRTIME_LINK_METRIC, /* keep last */ __NL80211_STA_INFO_AFTER_LAST, diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 574c3891c4b2..88535a2e62bc 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -278,6 +278,8 @@ mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst); int mesh_path_add_gate(struct mesh_path *mpath); int mesh_path_send_to_gates(struct mesh_path *mpath); int mesh_gate_num(struct ieee80211_sub_if_data *sdata); +u32 airtime_link_metric_get(struct ieee80211_local *local, + struct sta_info *sta); /* Mesh plinks */ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index f7517668e77a..c694c0dd907e 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -318,8 +318,8 @@ void ieee80211s_update_metric(struct ieee80211_local *local, cfg80211_calculate_bitrate(&rinfo)); } -static u32 airtime_link_metric_get(struct ieee80211_local *local, - struct sta_info *sta) +u32 airtime_link_metric_get(struct ieee80211_local *local, + struct sta_info *sta) { /* This should be adjusted for each device */ int device_constant = 1 << ARITH_SHIFT; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 11f058987a54..a81e1279a76d 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -2373,6 +2373,12 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo, sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL_AVG); } + + if (ieee80211_vif_is_mesh(&sdata->vif)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_AIRTIME_LINK_METRIC); + sinfo->airtime_link_metric = + airtime_link_metric_get(local, sta); + } } u32 sta_get_expected_throughput(struct sta_info *sta) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 62f96d6c02f0..7556c0479b3c 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -4898,6 +4898,7 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, PUT_SINFO(TX_RETRIES, tx_retries, u32); PUT_SINFO(TX_FAILED, tx_failed, u32); PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32); + PUT_SINFO(AIRTIME_LINK_METRIC, airtime_link_metric, u32); PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32); PUT_SINFO(LOCAL_PM, local_pm, u32); PUT_SINFO(PEER_PM, peer_pm, u32); -- cgit v1.2.3 From cb74e9775871f8c82a1297cf76209f10ab5bbe3d Mon Sep 17 00:00:00 2001 From: Sunil Dutt Date: Wed, 20 Feb 2019 16:18:07 +0530 Subject: cfg80211/nl80211: Offload OWE processing to user space in AP mode This interface allows the host driver to offload OWE processing to user space. This intends to support OWE (Opportunistic Wireless Encryption) AKM by the drivers that implement SME but rely on the user space for the cryptographic/OWE processing in AP mode. Such drivers are not capable of processing/deriving the DH IE. A new NL80211 command - NL80211_CMD_UPDATE_OWE_INFO is introduced to send the request/event between the host driver and user space. Driver shall provide the OWE info (MAC address and DH IE) of the peer to user space for cryptographic processing of the DH IE through the event. Accordingly, the user space shall update the OWE info/DH IE to the driver. Following is the sequence in AP mode for OWE authentication. Driver passes the OWE info obtained from the peer in the Association Request to the user space through the event cfg80211_update_owe_info_event. User space shall process the OWE info received and generate new OWE info. This OWE info is passed to the driver through NL80211_CMD_UPDATE_OWE_INFO request. Driver eventually uses this OWE info to send the Association Response to the peer. This OWE info in the command interface carries the IEs that include PMKID of the peer if the PMKSA is still valid or an updated DH IE for generating a new PMKSA with the peer. Signed-off-by: Liangwei Dong Signed-off-by: Sunil Dutt Signed-off-by: Srinivas Dasari [remove policy initialization - no longer exists] Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 42 ++++++++++++++++++++++++++ include/uapi/linux/nl80211.h | 7 +++++ net/wireless/nl80211.c | 72 ++++++++++++++++++++++++++++++++++++++++++++ net/wireless/rdev-ops.h | 13 ++++++++ net/wireless/trace.h | 38 +++++++++++++++++++++++ 5 files changed, 172 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 5859a5e02454..70432fd638af 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -3110,6 +3110,32 @@ struct cfg80211_pmsr_request { struct cfg80211_pmsr_request_peer peers[]; }; +/** + * struct cfg80211_update_owe_info - OWE Information + * + * This structure provides information needed for the drivers to offload OWE + * (Opportunistic Wireless Encryption) processing to the user space. + * + * Commonly used across update_owe_info request and event interfaces. + * + * @peer: MAC address of the peer device for which the OWE processing + * has to be done. + * @status: status code, %WLAN_STATUS_SUCCESS for successful OWE info + * processing, use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space + * cannot give you the real status code for failures. Used only for + * OWE update request command interface (user space to driver). + * @ie: IEs obtained from the peer or constructed by the user space. These are + * the IEs of the remote peer in the event from the host driver and + * the constructed IEs by the user space in the request interface. + * @ie_len: Length of IEs in octets. + */ +struct cfg80211_update_owe_info { + u8 peer[ETH_ALEN] __aligned(2); + u16 status; + const u8 *ie; + size_t ie_len; +}; + /** * struct cfg80211_ops - backend description for wireless configuration * @@ -3447,6 +3473,10 @@ struct cfg80211_pmsr_request { * Statistics should be cumulative, currently no way to reset is provided. * @start_pmsr: start peer measurement (e.g. FTM) * @abort_pmsr: abort peer measurement + * + * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME + * but offloading OWE processing to the user space will get the updated + * DH IE through this interface. */ struct cfg80211_ops { int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); @@ -3761,6 +3791,8 @@ struct cfg80211_ops { struct cfg80211_pmsr_request *request); void (*abort_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev, struct cfg80211_pmsr_request *request); + int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_update_owe_info *owe_info); }; /* @@ -7219,4 +7251,14 @@ void cfg80211_pmsr_complete(struct wireless_dev *wdev, #define wiphy_WARN(wiphy, format, args...) \ WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); +/** + * cfg80211_update_owe_info_event - Notify the peer's OWE info to user space + * @netdev: network device + * @owe_info: peer's owe info + * @gfp: allocation flags + */ +void cfg80211_update_owe_info_event(struct net_device *netdev, + struct cfg80211_update_owe_info *owe_info, + gfp_t gfp); + #endif /* __NET_CFG80211_H */ diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 07457f4aea00..a99d75bef598 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1065,6 +1065,11 @@ * indicated by %NL80211_ATTR_WIPHY_FREQ and other attributes * determining the width and type. * + * @NL80211_CMD_UPDATE_OWE_INFO: This interface allows the host driver to + * offload OWE processing to user space. This intends to support + * OWE AKM by the host drivers that implement SME but rely + * on the user space for the cryptographic/DH IE processing in AP mode. + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -1285,6 +1290,8 @@ enum nl80211_commands { NL80211_CMD_NOTIFY_RADAR, + NL80211_CMD_UPDATE_OWE_INFO, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7556c0479b3c..0124bab1f8a7 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -13316,6 +13316,31 @@ nla_put_failure: return -ENOBUFS; } +static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct cfg80211_update_owe_info owe_info; + struct net_device *dev = info->user_ptr[1]; + + if (!rdev->ops->update_owe_info) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_STATUS_CODE] || + !info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + memset(&owe_info, 0, sizeof(owe_info)); + owe_info.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); + nla_memcpy(owe_info.peer, info->attrs[NL80211_ATTR_MAC], ETH_ALEN); + + if (info->attrs[NL80211_ATTR_IE]) { + owe_info.ie = nla_data(info->attrs[NL80211_ATTR_IE]); + owe_info.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + } + + return rdev_update_owe_info(rdev, dev, &owe_info); +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -14146,6 +14171,13 @@ static const struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_UPDATE_OWE_INFO, + .doit = nl80211_update_owe_info, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_family nl80211_fam __ro_after_init = { @@ -16318,6 +16350,46 @@ int cfg80211_external_auth_request(struct net_device *dev, } EXPORT_SYMBOL(cfg80211_external_auth_request); +void cfg80211_update_owe_info_event(struct net_device *netdev, + struct cfg80211_update_owe_info *owe_info, + gfp_t gfp) +{ + struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + struct sk_buff *msg; + void *hdr; + + trace_cfg80211_update_owe_info_event(wiphy, netdev, owe_info); + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UPDATE_OWE_INFO); + if (!hdr) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || + nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || + nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, owe_info->peer)) + goto nla_put_failure; + + if (!owe_info->ie_len || + nla_put(msg, NL80211_ATTR_IE, owe_info->ie_len, owe_info->ie)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, + NL80211_MCGRP_MLME, gfp); + return; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_update_owe_info_event); + /* initialisation/exit functions */ int __init nl80211_init(void) diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 5cb48d135fab..c1e3210b09e6 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -1272,4 +1272,17 @@ rdev_abort_pmsr(struct cfg80211_registered_device *rdev, trace_rdev_return_void(&rdev->wiphy); } +static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_update_owe_info *oweinfo) +{ + int ret = -EOPNOTSUPP; + + trace_rdev_update_owe_info(&rdev->wiphy, dev, oweinfo); + if (rdev->ops->update_owe_info) + ret = rdev->ops->update_owe_info(&rdev->wiphy, dev, oweinfo); + trace_rdev_return_int(&rdev->wiphy, ret); + return ret; +} + #endif /* __CFG80211_RDEV_OPS */ diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 44b2ce1bb13a..2dda5291fc01 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -3362,6 +3362,44 @@ TRACE_EVENT(cfg80211_pmsr_complete, WIPHY_PR_ARG, WDEV_PR_ARG, (unsigned long long)__entry->cookie) ); + +TRACE_EVENT(rdev_update_owe_info, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_update_owe_info *owe_info), + TP_ARGS(wiphy, netdev, owe_info), + TP_STRUCT__entry(WIPHY_ENTRY + NETDEV_ENTRY + MAC_ENTRY(peer) + __field(u16, status) + __dynamic_array(u8, ie, owe_info->ie_len)), + TP_fast_assign(WIPHY_ASSIGN; + NETDEV_ASSIGN; + MAC_ASSIGN(peer, owe_info->peer); + __entry->status = owe_info->status; + memcpy(__get_dynamic_array(ie), + owe_info->ie, owe_info->ie_len);), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT + " status %d", WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer), + __entry->status) +); + +TRACE_EVENT(cfg80211_update_owe_info_event, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_update_owe_info *owe_info), + TP_ARGS(wiphy, netdev, owe_info), + TP_STRUCT__entry(WIPHY_ENTRY + NETDEV_ENTRY + MAC_ENTRY(peer) + __dynamic_array(u8, ie, owe_info->ie_len)), + TP_fast_assign(WIPHY_ASSIGN; + NETDEV_ASSIGN; + MAC_ASSIGN(peer, owe_info->peer); + memcpy(__get_dynamic_array(ie), owe_info->ie, + owe_info->ie_len);), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT, + WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer)) +); + #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH -- cgit v1.2.3 From 1d9373329bcbe0cfbb9af1738139292a9b10fe6a Mon Sep 17 00:00:00 2001 From: Shaul Triebitz Date: Fri, 15 Mar 2019 17:38:58 +0200 Subject: nl80211: increase NL80211_MAX_SUPP_REG_RULES The iwlwifi driver creates one rule per channel, thus it needs more rules than normal. To solve this, increase NL80211_MAX_SUPP_REG_RULES so iwlwifi can also fit UHB (ultra high band) channels. Signed-off-by: Shaul Triebitz Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index a99d75bef598..f00dbd82149e 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -11,7 +11,7 @@ * Copyright 2008 Jouni Malinen * Copyright 2008 Colin McCabe * Copyright 2015-2017 Intel Deutschland GmbH - * Copyright (C) 2018 Intel Corporation + * Copyright (C) 2018-2019 Intel Corporation * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -2809,7 +2809,7 @@ enum nl80211_attrs { #define NL80211_MAX_SUPP_RATES 32 #define NL80211_MAX_SUPP_HT_RATES 77 -#define NL80211_MAX_SUPP_REG_RULES 64 +#define NL80211_MAX_SUPP_REG_RULES 128 #define NL80211_TKIP_DATA_OFFSET_ENCR_KEY 0 #define NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY 16 #define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY 24 -- cgit v1.2.3 From 6cdd3979a2bdc16116c5b2eb09475abf54ba9e70 Mon Sep 17 00:00:00 2001 From: Alexander Wetzel Date: Tue, 19 Mar 2019 21:34:07 +0100 Subject: nl80211/cfg80211: Extended Key ID support Add support for IEEE 802.11-2016 "Extended Key ID for Individually Addressed Frames". Extend cfg80211 and nl80211 to allow pairwise keys to be installed for Rx only, enable Tx separately and allow Key ID 1 for pairwise keys. Signed-off-by: Alexander Wetzel [use NLA_POLICY_RANGE() for NL80211_KEY_MODE] Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 2 ++ include/uapi/linux/nl80211.h | 28 ++++++++++++++++++++++++++++ net/wireless/nl80211.c | 32 ++++++++++++++++++++++++++++---- net/wireless/rdev-ops.h | 3 ++- net/wireless/trace.h | 31 ++++++++++++++++++++++++++----- net/wireless/util.c | 21 +++++++++++++++------ 6 files changed, 101 insertions(+), 16 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index f6665f8eba5a..2b039802ae2e 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -485,6 +485,7 @@ struct vif_params { * with the get_key() callback, must be in little endian, * length given by @seq_len. * @seq_len: length of @seq. + * @mode: key install mode (RX_TX, NO_TX or SET_TX) */ struct key_params { const u8 *key; @@ -492,6 +493,7 @@ struct key_params { int key_len; int seq_len; u32 cipher; + enum nl80211_key_mode mode; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index f00dbd82149e..e75615bf4453 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4152,6 +4152,27 @@ enum nl80211_channel_type { NL80211_CHAN_HT40PLUS }; +/** + * enum nl80211_key_mode - Key mode + * + * @NL80211_KEY_RX_TX: (Default) + * Key can be used for Rx and Tx immediately + * + * The following modes can only be selected for unicast keys and when the + * driver supports @NL80211_EXT_FEATURE_EXT_KEY_ID: + * + * @NL80211_KEY_NO_TX: Only allowed in combination with @NL80211_CMD_NEW_KEY: + * Unicast key can only be used for Rx, Tx not allowed, yet + * @NL80211_KEY_SET_TX: Only allowed in combination with @NL80211_CMD_SET_KEY: + * The unicast key identified by idx and mac is cleared for Tx and becomes + * the preferred Tx key for the station. + */ +enum nl80211_key_mode { + NL80211_KEY_RX_TX, + NL80211_KEY_NO_TX, + NL80211_KEY_SET_TX +}; + /** * enum nl80211_chan_width - channel width definitions * @@ -4395,6 +4416,9 @@ enum nl80211_key_default_types { * @NL80211_KEY_DEFAULT_TYPES: A nested attribute containing flags * attributes, specifying what a key should be set as default as. * See &enum nl80211_key_default_types. + * @NL80211_KEY_MODE: the mode from enum nl80211_key_mode. + * Defaults to @NL80211_KEY_RX_TX. + * * @__NL80211_KEY_AFTER_LAST: internal * @NL80211_KEY_MAX: highest key attribute */ @@ -4408,6 +4432,7 @@ enum nl80211_key_attributes { NL80211_KEY_DEFAULT_MGMT, NL80211_KEY_TYPE, NL80211_KEY_DEFAULT_TYPES, + NL80211_KEY_MODE, /* keep last */ __NL80211_KEY_AFTER_LAST, @@ -5353,6 +5378,8 @@ enum nl80211_feature_flags { * able to rekey an in-use key correctly. Userspace must not rekey PTK keys * if this flag is not set. Ignoring this can leak clear text packets and/or * freeze the connection. + * @NL80211_EXT_FEATURE_EXT_KEY_ID: Driver supports "Extended Key ID for + * Individually Addressed Frames" from IEEE802.11-2016. * * @NL80211_EXT_FEATURE_AIRTIME_FAIRNESS: Driver supports getting airtime * fairness for transmitted packets and has enabled airtime fairness @@ -5406,6 +5433,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_AIRTIME_FAIRNESS, NL80211_EXT_FEATURE_AP_PMKSA_CACHING, NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD, + NL80211_EXT_FEATURE_EXT_KEY_ID, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0124bab1f8a7..ab9b095f6094 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -553,6 +553,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1), [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, + [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX), }; /* policy for the key default flags */ @@ -967,6 +968,9 @@ static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key, k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; } + if (tb[NL80211_KEY_MODE]) + k->p.mode = nla_get_u8(tb[NL80211_KEY_MODE]); + return 0; } @@ -3643,8 +3647,11 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) if (key.idx < 0) return -EINVAL; - /* only support setting default key */ - if (!key.def && !key.defmgmt) + /* Only support setting default key and + * Extended Key ID action NL80211_KEY_SET_TX. + */ + if (!key.def && !key.defmgmt && + !(key.p.mode == NL80211_KEY_SET_TX)) return -EINVAL; wdev_lock(dev->ieee80211_ptr); @@ -3668,7 +3675,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) #ifdef CONFIG_CFG80211_WEXT dev->ieee80211_ptr->wext.default_key = key.idx; #endif - } else { + } else if (key.defmgmt) { if (key.def_uni || !key.def_multi) { err = -EINVAL; goto out; @@ -3690,8 +3697,25 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) #ifdef CONFIG_CFG80211_WEXT dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; #endif - } + } else if (key.p.mode == NL80211_KEY_SET_TX && + wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_EXT_KEY_ID)) { + u8 *mac_addr = NULL; + if (info->attrs[NL80211_ATTR_MAC]) + mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + + if (!mac_addr || key.idx < 0 || key.idx > 1) { + err = -EINVAL; + goto out; + } + + err = rdev_add_key(rdev, dev, key.idx, + NL80211_KEYTYPE_PAIRWISE, + mac_addr, &key.p); + } else { + err = -EINVAL; + } out: wdev_unlock(dev->ieee80211_ptr); diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index c1e3210b09e6..18437a9deb54 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -77,7 +77,8 @@ static inline int rdev_add_key(struct cfg80211_registered_device *rdev, struct key_params *params) { int ret; - trace_rdev_add_key(&rdev->wiphy, netdev, key_index, pairwise, mac_addr); + trace_rdev_add_key(&rdev->wiphy, netdev, key_index, pairwise, + mac_addr, params->mode); ret = rdev->ops->add_key(&rdev->wiphy, netdev, key_index, pairwise, mac_addr, params); trace_rdev_return_int(&rdev->wiphy, ret); diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 2dda5291fc01..488ef2ce8231 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -430,22 +430,43 @@ DECLARE_EVENT_CLASS(key_handle, BOOL_TO_STR(__entry->pairwise), MAC_PR_ARG(mac_addr)) ); -DEFINE_EVENT(key_handle, rdev_add_key, +DEFINE_EVENT(key_handle, rdev_get_key, TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, bool pairwise, const u8 *mac_addr), TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr) ); -DEFINE_EVENT(key_handle, rdev_get_key, +DEFINE_EVENT(key_handle, rdev_del_key, TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, bool pairwise, const u8 *mac_addr), TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr) ); -DEFINE_EVENT(key_handle, rdev_del_key, +TRACE_EVENT(rdev_add_key, TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, - bool pairwise, const u8 *mac_addr), - TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr) + bool pairwise, const u8 *mac_addr, u8 mode), + TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr, mode), + TP_STRUCT__entry( + WIPHY_ENTRY + NETDEV_ENTRY + MAC_ENTRY(mac_addr) + __field(u8, key_index) + __field(bool, pairwise) + __field(u8, mode) + ), + TP_fast_assign( + WIPHY_ASSIGN; + NETDEV_ASSIGN; + MAC_ASSIGN(mac_addr, mac_addr); + __entry->key_index = key_index; + __entry->pairwise = pairwise; + __entry->mode = mode; + ), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", key_index: %u, " + "mode: %u, pairwise: %s, mac addr: " MAC_PR_FMT, + WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index, + __entry->mode, BOOL_TO_STR(__entry->pairwise), + MAC_PR_ARG(mac_addr)) ); TRACE_EVENT(rdev_set_default_key, diff --git a/net/wireless/util.c b/net/wireless/util.c index e4b8db5e81ec..6c02c9cf7aa9 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -237,14 +237,23 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, case WLAN_CIPHER_SUITE_CCMP_256: case WLAN_CIPHER_SUITE_GCMP: case WLAN_CIPHER_SUITE_GCMP_256: - /* Disallow pairwise keys with non-zero index unless it's WEP - * or a vendor specific cipher (because current deployments use - * pairwise WEP keys with non-zero indices and for vendor - * specific ciphers this should be validated in the driver or - * hardware level - but 802.11i clearly specifies to use zero) + /* IEEE802.11-2016 allows only 0 and - when using Extended Key + * ID - 1 as index for pairwise keys. + * @NL80211_KEY_NO_TX is only allowed for pairwise keys when + * the driver supports Extended Key ID. + * @NL80211_KEY_SET_TX can't be set when installing and + * validating a key. */ - if (pairwise && key_idx) + if (params->mode == NL80211_KEY_NO_TX) { + if (!wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_EXT_KEY_ID)) + return -EINVAL; + else if (!pairwise || key_idx < 0 || key_idx > 1) + return -EINVAL; + } else if ((pairwise && key_idx) || + params->mode == NL80211_KEY_SET_TX) { return -EINVAL; + } break; case WLAN_CIPHER_SUITE_AES_CMAC: case WLAN_CIPHER_SUITE_BIP_CMAC_256: -- cgit v1.2.3 From e96d1cd2635c05efdd01b4eafcfc50c22c40751f Mon Sep 17 00:00:00 2001 From: Ashok Raj Nagarajan Date: Fri, 29 Mar 2019 16:18:21 +0530 Subject: cfg80211: Add support to set tx power for a station associated This patch adds support to set transmit power setting type and transmit power level attributes to NL80211_CMD_SET_STATION in order to facilitate adjusting the transmit power level of a station associated to the AP. The added attributes allow selection of automatic and limited transmit power level, with the level defined in dBm format. Co-developed-by: Balaji Pothunoori Signed-off-by: Ashok Raj Nagarajan Signed-off-by: Balaji Pothunoori Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 22 ++++++++++++++++++++++ include/uapi/linux/nl80211.h | 15 +++++++++++++++ net/wireless/nl80211.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 80 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 2b039802ae2e..2ea04e94b522 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -975,6 +975,27 @@ enum station_parameters_apply_mask { STATION_PARAM_APPLY_UAPSD = BIT(0), STATION_PARAM_APPLY_CAPABILITY = BIT(1), STATION_PARAM_APPLY_PLINK_STATE = BIT(2), + STATION_PARAM_APPLY_STA_TXPOWER = BIT(3), +}; + +/** + * struct sta_txpwr - station txpower configuration + * + * Used to configure txpower for station. + * + * @power: tx power (in dBm) to be used for sending data traffic. If tx power + * is not provided, the default per-interface tx power setting will be + * overriding. Driver should be picking up the lowest tx power, either tx + * power per-interface or per-station. + * @type: In particular if TPC %type is NL80211_TX_POWER_LIMITED then tx power + * will be less than or equal to specified from userspace, whereas if TPC + * %type is NL80211_TX_POWER_AUTOMATIC then it indicates default tx power. + * NL80211_TX_POWER_FIXED is not a valid configuration option for + * per peer TPC. + */ +struct sta_txpwr { + s16 power; + enum nl80211_tx_power_setting type; }; /** @@ -1049,6 +1070,7 @@ struct station_parameters { const struct ieee80211_he_cap_elem *he_capa; u8 he_capa_len; u16 airtime_weight; + struct sta_txpwr txpwr; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index e75615bf4453..25f70dd2b583 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2315,6 +2315,15 @@ enum nl80211_commands { * @NL80211_ATTR_AIRTIME_WEIGHT: Station's weight when scheduled by the airtime * scheduler. * + * @NL80211_ATTR_STA_TX_POWER_SETTING: Transmit power setting type (u8) for + * station associated with the AP. See &enum nl80211_tx_power_setting for + * possible values. + * @NL80211_ATTR_STA_TX_POWER: Transmit power level (s16) in dBm units. This + * allows to set Tx power for a station. If this attribute is not included, + * the default per-interface tx power setting will be overriding. Driver + * should be picking up the lowest tx power, either tx power per-interface + * or per-station. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2765,6 +2774,8 @@ enum nl80211_attrs { NL80211_ATTR_PEER_MEASUREMENTS, NL80211_ATTR_AIRTIME_WEIGHT, + NL80211_ATTR_STA_TX_POWER_SETTING, + NL80211_ATTR_STA_TX_POWER, /* add attributes here, update the policy in nl80211.c */ @@ -5391,6 +5402,9 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD: Driver supports * filtering of sched scan results using band specific RSSI thresholds. * + * @NL80211_EXT_FEATURE_STA_TX_PWR: This driver supports controlling tx power + * to a station. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -5434,6 +5448,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_AP_PMKSA_CACHING, NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD, NL80211_EXT_FEATURE_EXT_KEY_ID, + NL80211_EXT_FEATURE_STA_TX_PWR, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 64f191244c67..0524a6fb84ad 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -331,6 +331,11 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { .len = NL80211_MAX_SUPP_RATES }, [NL80211_ATTR_STA_PLINK_ACTION] = NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_ACTIONS - 1), + [NL80211_ATTR_STA_TX_POWER_SETTING] = + NLA_POLICY_RANGE(NLA_U8, + NL80211_TX_POWER_AUTOMATIC, + NL80211_TX_POWER_FIXED), + [NL80211_ATTR_STA_TX_POWER] = { .type = NLA_S16 }, [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, @@ -5420,6 +5425,36 @@ static int nl80211_set_station_tdls(struct genl_info *info, return nl80211_parse_sta_wme(info, params); } +static int nl80211_parse_sta_txpower_setting(struct genl_info *info, + struct station_parameters *params) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + int idx; + + if (info->attrs[NL80211_ATTR_STA_TX_POWER_SETTING]) { + if (!rdev->ops->set_tx_power || + !wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_STA_TX_PWR)) + return -EOPNOTSUPP; + + idx = NL80211_ATTR_STA_TX_POWER_SETTING; + params->txpwr.type = nla_get_u8(info->attrs[idx]); + + if (params->txpwr.type == NL80211_TX_POWER_LIMITED) { + idx = NL80211_ATTR_STA_TX_POWER; + + if (info->attrs[idx]) + params->txpwr.power = + nla_get_s16(info->attrs[idx]); + else + return -EINVAL; + } + params->sta_modify_mask |= STATION_PARAM_APPLY_STA_TXPOWER; + } + + return 0; +} + static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -5513,6 +5548,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) return -EOPNOTSUPP; + err = nl80211_parse_sta_txpower_setting(info, ¶ms); + if (err) + return err; + /* Include parameters for TDLS peer (will check later) */ err = nl80211_set_station_tdls(info, ¶ms); if (err) @@ -5650,6 +5689,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) return -EOPNOTSUPP; + err = nl80211_parse_sta_txpower_setting(info, ¶ms); + if (err) + return err; + err = nl80211_parse_sta_channel_info(info, ¶ms); if (err) return err; -- cgit v1.2.3 From 5ab92e7fe49ad74293b50fb9e6f25be5521e2f68 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Thu, 11 Apr 2019 13:47:24 -0700 Subject: cfg80211: add support to probe unexercised mesh link Adding support to allow mesh HWMP to measure link metrics on unexercised direct mesh path by sending some data frames to other mesh points which are not currently selected as a primary traffic path but only 1 hop away. The absence of the primary path to the chosen node makes it necessary to apply some form of marking on a chosen packet stream so that the packets can be properly steered to the selected node for testing, and not by the regular mesh path lookup. Tested-by: Pradeep Kumar Chitrapu Signed-off-by: Rajkumar Manoharan Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 5 +++++ include/uapi/linux/nl80211.h | 17 ++++++++++++++++ net/wireless/nl80211.c | 48 ++++++++++++++++++++++++++++++++++++++++++++ net/wireless/rdev-ops.h | 13 ++++++++++++ net/wireless/trace.h | 18 +++++++++++++++++ 5 files changed, 101 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 944de1802210..298301525f9f 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -3501,6 +3501,9 @@ struct cfg80211_update_owe_info { * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME * but offloading OWE processing to the user space will get the updated * DH IE through this interface. + * + * @probe_mesh_link: Probe direct Mesh peer's link quality by sending data frame + * and overrule HWMP path selection algorithm. */ struct cfg80211_ops { int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); @@ -3817,6 +3820,8 @@ struct cfg80211_ops { struct cfg80211_pmsr_request *request); int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_update_owe_info *owe_info); + int (*probe_mesh_link)(struct wiphy *wiphy, struct net_device *dev, + const u8 *buf, size_t len); }; /* diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 25f70dd2b583..6f09d1500960 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1070,6 +1070,21 @@ * OWE AKM by the host drivers that implement SME but rely * on the user space for the cryptographic/DH IE processing in AP mode. * + * @NL80211_CMD_PROBE_MESH_LINK: The requirement for mesh link metric + * refreshing, is that from one mesh point we be able to send some data + * frames to other mesh points which are not currently selected as a + * primary traffic path, but which are only 1 hop away. The absence of + * the primary path to the chosen node makes it necessary to apply some + * form of marking on a chosen packet stream so that the packets can be + * properly steered to the selected node for testing, and not by the + * regular mesh path lookup. Further, the packets must be of type data + * so that the rate control (often embedded in firmware) is used for + * rate selection. + * + * Here attribute %NL80211_ATTR_MAC is used to specify connected mesh + * peer MAC address and %NL80211_ATTR_FRAME is used to specify the frame + * content. The frame is ethernet data. + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -1292,6 +1307,8 @@ enum nl80211_commands { NL80211_CMD_UPDATE_OWE_INFO, + NL80211_CMD_PROBE_MESH_LINK, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 5dfc4dba9e56..3aecdd3d5b07 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -13404,6 +13404,47 @@ static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info) return rdev_update_owe_info(rdev, dev, &owe_info); } +static int nl80211_probe_mesh_link(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct station_info sinfo = {}; + const u8 *buf; + size_t len; + u8 *dest; + int err; + + if (!rdev->ops->probe_mesh_link || !rdev->ops->get_station) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_MAC] || + !info->attrs[NL80211_ATTR_FRAME]) { + GENL_SET_ERR_MSG(info, "Frame or MAC missing"); + return -EINVAL; + } + + if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + dest = nla_data(info->attrs[NL80211_ATTR_MAC]); + buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); + len = nla_len(info->attrs[NL80211_ATTR_FRAME]); + + if (len < sizeof(struct ethhdr)) + return -EINVAL; + + if (!ether_addr_equal(buf, dest) || is_multicast_ether_addr(buf) || + !ether_addr_equal(buf + ETH_ALEN, dev->dev_addr)) + return -EINVAL; + + err = rdev_get_station(rdev, dev, dest, &sinfo); + if (err) + return err; + + return rdev_probe_mesh_link(rdev, dev, dest, buf, len); +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -14241,6 +14282,13 @@ static const struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_PROBE_MESH_LINK, + .doit = nl80211_probe_mesh_link, + .flags = GENL_UNS_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_family nl80211_fam __ro_after_init = { diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 18437a9deb54..e853a4fe6f97 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -1286,4 +1286,17 @@ static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev, return ret; } +static inline int +rdev_probe_mesh_link(struct cfg80211_registered_device *rdev, + struct net_device *dev, const u8 *dest, + const void *buf, size_t len) +{ + int ret; + + trace_rdev_probe_mesh_link(&rdev->wiphy, dev, dest, buf, len); + ret = rdev->ops->probe_mesh_link(&rdev->wiphy, dev, buf, len); + trace_rdev_return_int(&rdev->wiphy, ret); + return ret; +} + #endif /* __CFG80211_RDEV_OPS */ diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 488ef2ce8231..2abfff925aac 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -3421,6 +3421,24 @@ TRACE_EVENT(cfg80211_update_owe_info_event, WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer)) ); +TRACE_EVENT(rdev_probe_mesh_link, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, + const u8 *dest, const u8 *buf, size_t len), + TP_ARGS(wiphy, netdev, dest, buf, len), + TP_STRUCT__entry( + WIPHY_ENTRY + NETDEV_ENTRY + MAC_ENTRY(dest) + ), + TP_fast_assign( + WIPHY_ASSIGN; + NETDEV_ASSIGN; + MAC_ASSIGN(dest, dest); + ), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT, + WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(dest)) +); + #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH -- cgit v1.2.3