linux_dsm_epyc7002/net/wireless/nl80211.h
Johannes Berg 9bb7e0f24e cfg80211: add peer measurement with FTM initiator API
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>
2018-11-09 11:20:13 +01:00

131 lines
4.8 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Portions of this file
* Copyright (C) 2018 Intel Corporation
*/
#ifndef __NET_WIRELESS_NL80211_H
#define __NET_WIRELESS_NL80211_H
#include "core.h"
int nl80211_init(void);
void nl80211_exit(void);
extern const struct nla_policy nl80211_policy[NUM_NL80211_ATTR];
void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
int flags, u8 cmd);
bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
int attr);
static inline u64 wdev_id(struct wireless_dev *wdev)
{
return (u64)wdev->identifier |
((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
}
int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
struct cfg80211_registered_device **rdev,
struct wireless_dev **wdev);
int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
struct genl_info *info,
struct cfg80211_chan_def *chandef);
int nl80211_parse_random_mac(struct nlattr **attrs,
u8 *mac_addr, u8 *mac_addr_mask);
void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
enum nl80211_commands cmd);
void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
enum nl80211_commands cmd);
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev);
struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, bool aborted);
void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
struct sk_buff *msg);
void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd);
void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
struct regulatory_request *request);
static inline void
nl80211_send_reg_change_event(struct regulatory_request *request)
{
nl80211_common_reg_change_event(NL80211_CMD_REG_CHANGE, request);
}
static inline void
nl80211_send_wiphy_reg_change_event(struct regulatory_request *request)
{
nl80211_common_reg_change_event(NL80211_CMD_WIPHY_REG_CHANGE, request);
}
void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *buf, size_t len, gfp_t gfp,
int uapsd_queues);
void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *addr, gfp_t gfp);
void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
const u8 *addr, gfp_t gfp);
void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
struct cfg80211_connect_resp_params *params,
gfp_t gfp);
void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
struct cfg80211_roam_info *info, gfp_t gfp);
void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *bssid);
void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
struct net_device *netdev, u16 reason,
const u8 *ie, size_t ie_len, bool from_ap);
void
nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *addr,
enum nl80211_key_type key_type,
int key_id, const u8 *tsc, gfp_t gfp);
void
nl80211_send_beacon_hint_event(struct wiphy *wiphy,
struct ieee80211_channel *channel_before,
struct ieee80211_channel *channel_after);
void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *bssid,
gfp_t gfp);
int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, u32 nlpid,
int freq, int sig_dbm,
const u8 *buf, size_t len, u32 flags, gfp_t gfp);
void
nl80211_radar_notify(struct cfg80211_registered_device *rdev,
const struct cfg80211_chan_def *chandef,
enum nl80211_radar_event event,
struct net_device *netdev, gfp_t gfp);
void nl80211_send_ap_stopped(struct wireless_dev *wdev);
void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev);
/* peer measurement */
int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info);
int nl80211_pmsr_dump_results(struct sk_buff *skb, struct netlink_callback *cb);
#endif /* __NET_WIRELESS_NL80211_H */