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mac80211: add TDLS channel-switch Rx flow

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When receiving a TDLS channel switch request or response, parse the frame
and call a new tdls_recv_channel_switch op in the low level driver with
the parsed data.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arik Nemtsov
2014-11-09 18:50:20 +02:00
committed by Johannes Berg
parent a7a6bdd067
commit 8a4d32f30d
8 changed files with 449 additions and 2 deletions
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37
include/net/mac80211.h
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@@ -1826,6 +1826,31 @@ struct ieee80211_scan_request {
struct cfg80211_scan_request req;
};
/**
* struct ieee80211_tdls_ch_sw_params - TDLS channel switch parameters
*
* @sta: peer this TDLS channel-switch request/response came from
* @chandef: channel referenced in a TDLS channel-switch request
* @action_code: see &enum ieee80211_tdls_actioncode
* @status: channel-switch response status
* @timestamp: time at which the frame was received
* @switch_time: switch-timing parameter received in the frame
* @switch_timeout: switch-timing parameter received in the frame
* @tmpl_skb: TDLS switch-channel response template
* @ch_sw_tm_ie: offset of the channel-switch timing IE inside @tmpl_skb
*/
struct ieee80211_tdls_ch_sw_params {
struct ieee80211_sta *sta;
struct cfg80211_chan_def *chandef;
u8 action_code;
u32 status;
u32 timestamp;
u16 switch_time;
u16 switch_timeout;
struct sk_buff *tmpl_skb;
u32 ch_sw_tm_ie;
};
/**
* wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
*
@@ -2925,6 +2950,13 @@ enum ieee80211_reconfig_type {
* optionally copy the skb for further re-use.
* @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
* peers must be on the base channel when the call completes.
* @tdls_recv_channel_switch: a TDLS channel-switch related frame (request or
* response) has been received from a remote peer. The driver gets
* parameters parsed from the incoming frame and may use them to continue
* an ongoing channel-switch operation. In addition, a channel-switch
* response template is provided, together with the location of the
* switch-timing IE within the template. The skb can only be used within
* the function call.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -3141,10 +3173,13 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u8 oper_class,
struct cfg80211_chan_def *chandef,
struct sk_buff *skb, u32 ch_sw_tm_ie);
struct sk_buff *tmpl_skb, u32 ch_sw_tm_ie);
void (*tdls_cancel_channel_switch)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
void (*tdls_recv_channel_switch)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_tdls_ch_sw_params *params);
};
/**