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mac80211: allow turning TWT responder support on and off via netlink

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Allow the userland daemon to en/disable TWT support for an AP.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
[simplify parsing code]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
John Crispin 2019-05-28 13:49:48 +02:00 committed by Johannes Berg
parent c9d3245e03
commit a0de1ca383
5 changed files with 16 additions and 1 deletions
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2
include/net/cfg80211.h
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@ -897,6 +897,7 @@ enum cfg80211_ap_settings_flags {
* @he_cap: HE capabilities (or %NULL if HE isn't enabled) * @he_cap: HE capabilities (or %NULL if HE isn't enabled)
* @ht_required: stations must support HT * @ht_required: stations must support HT
* @vht_required: stations must support VHT * @vht_required: stations must support VHT
* @twt_responder: Enable Target Wait Time
* @flags: flags, as defined in enum cfg80211_ap_settings_flags * @flags: flags, as defined in enum cfg80211_ap_settings_flags
*/ */
struct cfg80211_ap_settings { struct cfg80211_ap_settings {
@ -923,6 +924,7 @@ struct cfg80211_ap_settings {
const struct ieee80211_vht_cap *vht_cap; const struct ieee80211_vht_cap *vht_cap;
const struct ieee80211_he_cap_elem *he_cap; const struct ieee80211_he_cap_elem *he_cap;
bool ht_required, vht_required; bool ht_required, vht_required;
bool twt_responder;
u32 flags; u32 flags;
}; };

3
include/net/mac80211.h
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@ -506,6 +506,8 @@ struct ieee80211_ftm_responder_params {
* @he_support: does this BSS support HE * @he_support: does this BSS support HE
* @twt_requester: does this BSS support TWT requester (relevant for managed * @twt_requester: does this BSS support TWT requester (relevant for managed
* mode only, set if the AP advertises TWT responder role) * mode only, set if the AP advertises TWT responder role)
* @twt_responder: does this BSS support TWT requester (relevant for managed
* mode only, set if the AP advertises TWT responder role)
* @assoc: association status * @assoc: association status
* @ibss_joined: indicates whether this station is part of an IBSS * @ibss_joined: indicates whether this station is part of an IBSS
* or not * or not
@ -613,6 +615,7 @@ struct ieee80211_bss_conf {
u16 frame_time_rts_th; u16 frame_time_rts_th;
bool he_support; bool he_support;
bool twt_requester; bool twt_requester;
bool twt_responder;
/* association related data */ /* association related data */
bool assoc, ibss_joined; bool assoc, ibss_joined;
bool ibss_creator; bool ibss_creator;

4
include/uapi/linux/nl80211.h
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@ -2354,6 +2354,8 @@ enum nl80211_commands {
* is used with %NL80211_CMD_CONNECT to provide password for offloading * is used with %NL80211_CMD_CONNECT to provide password for offloading
* SAE authentication for WPA3-Personal networks. * SAE authentication for WPA3-Personal networks.
* *
* @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined * @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use * @__NL80211_ATTR_AFTER_LAST: internal use
@ -2809,6 +2811,8 @@ enum nl80211_attrs {
NL80211_ATTR_SAE_PASSWORD, NL80211_ATTR_SAE_PASSWORD,
NL80211_ATTR_TWT_RESPONDER,
/* add attributes here, update the policy in nl80211.c */ /* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST, __NL80211_ATTR_AFTER_LAST,

4
net/mac80211/cfg.c
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@ -975,7 +975,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
BSS_CHANGED_BEACON | BSS_CHANGED_BEACON |
BSS_CHANGED_SSID | BSS_CHANGED_SSID |
BSS_CHANGED_P2P_PS | BSS_CHANGED_P2P_PS |
BSS_CHANGED_TXPOWER; BSS_CHANGED_TXPOWER |
BSS_CHANGED_TWT;
int err; int err;
int prev_beacon_int; int prev_beacon_int;
@ -1045,6 +1046,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
sdata->vif.bss_conf.dtim_period = params->dtim_period; sdata->vif.bss_conf.dtim_period = params->dtim_period;
sdata->vif.bss_conf.enable_beacon = true; sdata->vif.bss_conf.enable_beacon = true;
sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
sdata->vif.bss_conf.twt_responder = params->twt_responder;
sdata->vif.bss_conf.ssid_len = params->ssid_len; sdata->vif.bss_conf.ssid_len = params->ssid_len;
if (params->ssid_len) if (params->ssid_len)

4
net/wireless/nl80211.c
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@ -573,6 +573,7 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1), [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1),
[NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY, [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY,
.len = SAE_PASSWORD_MAX_LEN }, .len = SAE_PASSWORD_MAX_LEN },
[NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG },
}; };
/* policy for the key attributes */ /* policy for the key attributes */
@ -4628,6 +4629,9 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
return PTR_ERR(params.acl); return PTR_ERR(params.acl);
} }
params.twt_responder =
nla_get_flag(info->attrs[NL80211_ATTR_TWT_RESPONDER]);
nl80211_calculate_ap_params(&params); nl80211_calculate_ap_params(&params);
if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT]) if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])