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nl80211: add ability to report TX status for control port TX

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This adds the necessary capabilities in nl80211 to allow drivers to
assign a cookie to control port TX frames (returned via extack in
the netlink ACK message of the command) and then later report the
frame's status.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200508144202.7678-2-markus.theil@tu-ilmenau.de
[use extack cookie instead of explicit message, recombine patches]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Markus Theil
2020-05-08 16:42:00 +02:00
committed by Johannes Berg
parent 3c23215ba8
commit dca9ca2d58
7 changed files with 91 additions and 14 deletions
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20
include/net/cfg80211.h
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@@ -4069,7 +4069,8 @@ struct cfg80211_ops {
struct net_device *dev,
const u8 *buf, size_t len,
const u8 *dest, const __be16 proto,
const bool noencrypt);
const bool noencrypt,
u64 *cookie);
int (*get_ftm_responder_stats)(struct wiphy *wiphy,
struct net_device *dev,
@@ -7049,6 +7050,23 @@ static inline bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq,
void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
const u8 *buf, size_t len, bool ack, gfp_t gfp);
/**
* cfg80211_control_port_tx_status - notification of TX status for control
* port frames
* @wdev: wireless device receiving the frame
* @cookie: Cookie returned by cfg80211_ops::tx_control_port()
* @buf: Data frame (header + body)
* @len: length of the frame data
* @ack: Whether frame was acknowledged
* @gfp: context flags
*
* This function is called whenever a control port frame was requested to be
* transmitted with cfg80211_ops::tx_control_port() to report the TX status of
* the transmission attempt.
*/
void cfg80211_control_port_tx_status(struct wireless_dev *wdev, u64 cookie,
const u8 *buf, size_t len, bool ack,
gfp_t gfp);
/**
* cfg80211_rx_control_port - notification about a received control port frame