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9bb7e0f24e
Add a new "peer measurement" API, that can be used to measure certain things related to a peer. Right now, only implement FTM (flight time measurement) over it, but the idea is that it'll be extensible to also support measuring the necessary things to calculate e.g. angle-of-arrival for WiGig. The API is structured to have a generic list of peers and channels to measure with/on, and then for each of those a set of measurements (again, only FTM right now) to perform. Results are sent to the requesting socket, including a final complete message. Closing the controlling netlink socket will abort a running measurement. v3: - add a bit to report "final" for partial results - remove list keeping etc. and just unicast out the results to the requester (big code reduction ...) - also send complete message unicast, and as a result remove the multicast group - separate out struct cfg80211_pmsr_ftm_request_peer from struct cfg80211_pmsr_request_peer - document timeout == 0 if no timeout - disallow setting timeout nl80211 attribute to 0, must not include attribute for no timeout - make MAC address randomization optional - change num bursts exponent default to 0 (1 burst, rather rather than the old default of 15==don't care) v4: - clarify NL80211_ATTR_TIMEOUT documentation v5: - remove unnecessary nl80211 multicast/family changes - remove partial results bit/flag, final is sufficient - add max_bursts_exponent, max_ftms_per_burst to capability - rename "frames per burst" -> "FTMs per burst" v6: - rename cfg80211_pmsr_free_wdev() to cfg80211_pmsr_wdev_down() and call it in leave, so the device can't go down with any pending measurements v7: - wording fixes (Lior) - fix ftm.max_bursts_exponent to allow having the limit of 0 (Lior) v8: - copyright statements - minor coding style fixes - fix error path leak Signed-off-by: Johannes Berg <johannes.berg@intel.com>
131 lines
4.8 KiB
C
131 lines
4.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Portions of this file
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* Copyright (C) 2018 Intel Corporation
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*/
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#ifndef __NET_WIRELESS_NL80211_H
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#define __NET_WIRELESS_NL80211_H
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#include "core.h"
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int nl80211_init(void);
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void nl80211_exit(void);
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extern const struct nla_policy nl80211_policy[NUM_NL80211_ATTR];
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void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
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int flags, u8 cmd);
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bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
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int attr);
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static inline u64 wdev_id(struct wireless_dev *wdev)
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{
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return (u64)wdev->identifier |
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((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
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}
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int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
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struct cfg80211_registered_device **rdev,
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struct wireless_dev **wdev);
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int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
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struct genl_info *info,
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struct cfg80211_chan_def *chandef);
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int nl80211_parse_random_mac(struct nlattr **attrs,
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u8 *mac_addr, u8 *mac_addr_mask);
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void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
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enum nl80211_commands cmd);
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void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
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struct wireless_dev *wdev,
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enum nl80211_commands cmd);
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void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
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struct wireless_dev *wdev);
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struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
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struct wireless_dev *wdev, bool aborted);
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void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
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struct sk_buff *msg);
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void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd);
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void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
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struct regulatory_request *request);
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static inline void
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nl80211_send_reg_change_event(struct regulatory_request *request)
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{
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nl80211_common_reg_change_event(NL80211_CMD_REG_CHANGE, request);
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}
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static inline void
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nl80211_send_wiphy_reg_change_event(struct regulatory_request *request)
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{
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nl80211_common_reg_change_event(NL80211_CMD_WIPHY_REG_CHANGE, request);
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}
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void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *buf, size_t len, gfp_t gfp);
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void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *buf, size_t len, gfp_t gfp,
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int uapsd_queues);
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void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *buf, size_t len, gfp_t gfp);
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void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *buf, size_t len, gfp_t gfp);
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void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *addr, gfp_t gfp);
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void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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const u8 *addr, gfp_t gfp);
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void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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struct cfg80211_connect_resp_params *params,
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gfp_t gfp);
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void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
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struct net_device *netdev,
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struct cfg80211_roam_info *info, gfp_t gfp);
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void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
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struct net_device *netdev, const u8 *bssid);
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void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
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struct net_device *netdev, u16 reason,
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const u8 *ie, size_t ie_len, bool from_ap);
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void
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nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
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struct net_device *netdev, const u8 *addr,
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enum nl80211_key_type key_type,
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int key_id, const u8 *tsc, gfp_t gfp);
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void
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nl80211_send_beacon_hint_event(struct wiphy *wiphy,
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struct ieee80211_channel *channel_before,
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struct ieee80211_channel *channel_after);
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void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
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struct net_device *netdev, const u8 *bssid,
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gfp_t gfp);
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int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
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struct wireless_dev *wdev, u32 nlpid,
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int freq, int sig_dbm,
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const u8 *buf, size_t len, u32 flags, gfp_t gfp);
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void
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nl80211_radar_notify(struct cfg80211_registered_device *rdev,
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const struct cfg80211_chan_def *chandef,
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enum nl80211_radar_event event,
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struct net_device *netdev, gfp_t gfp);
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void nl80211_send_ap_stopped(struct wireless_dev *wdev);
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void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev);
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/* peer measurement */
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int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info);
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int nl80211_pmsr_dump_results(struct sk_buff *skb, struct netlink_callback *cb);
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#endif /* __NET_WIRELESS_NL80211_H */
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