diff mbox series

wifi: nl80211: Parse NL80211 attribute to update probe response template

Message ID 20240409150025.3261531-1-quic_rrchinan@quicinc.com
State New
Headers show
Series wifi: nl80211: Parse NL80211 attribute to update probe response template | expand

Commit Message

Rathees Kumar R Chinannan April 9, 2024, 3 p.m. UTC 
Currently NL80211_ATTR_UNSOL_BCAST_PROBE_RESP attribute is parsed only by
nl80211_start_ap() and nl80211_set_beacon(). Add changes to parse this
attribute when NL80211 command received for channel change or BSS color
code change.

Add and update link_id parameter on cfg80211_color_change_settings
structure to know the link on which BSS color code change is expected.

This attribute will be set when AP is beaconing only on 6 GHz band and
unsol_bcast_presp interval is set, in this case AP sends unsolicited
broadcast probe response frame for in-band discovery.

Signed-off-by: Rathees Kumar R Chinannan <quic_rrchinan@quicinc.com>
---
 include/net/cfg80211.h |  7 +++++++
 net/mac80211/cfg.c     | 20 ++++++++++++++++++++
 net/wireless/nl80211.c | 20 +++++++++++++++++++-
 3 files changed, 46 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 496a9d4956de..7ebb5b8578e7 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1549,6 +1549,7 @@  struct cfg80211_ap_update {
  * @count: number of beacons until switch
  * @link_id: defines the link on which channel switch is expected during
  *	MLO. 0 in case of non-MLO.
+ * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters
  */
 struct cfg80211_csa_settings {
 	struct cfg80211_chan_def chandef;
@@ -1562,6 +1563,7 @@  struct cfg80211_csa_settings {
 	bool block_tx;
 	u8 count;
 	u8 link_id;
+	struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp;
 };
 
 /**
@@ -1575,6 +1577,9 @@  struct cfg80211_csa_settings {
  * @beacon_next: beacon data to be used after the color change
  * @count: number of beacons until the color change
  * @color: the color used after the change
+ * @link_id: defines the link on which color change is expected during
+ *	MLO. 0 in case of non-MLO.
+ * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters
  */
 struct cfg80211_color_change_settings {
 	struct cfg80211_beacon_data beacon_color_change;
@@ -1583,6 +1588,8 @@  struct cfg80211_color_change_settings {
 	struct cfg80211_beacon_data beacon_next;
 	u8 count;
 	u8 color;
+	u8 link_id;
+	struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 97ffd3028467..4947e249cfaf 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -4026,6 +4026,12 @@  __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	ch_switch.block_tx = params->block_tx;
 	ch_switch.chandef = chanreq.oper;
 	ch_switch.count = params->count;
+	err = ieee80211_set_unsol_bcast_probe_resp(sdata,
+						   &params->unsol_bcast_probe_resp,
+						   link_data, link_conf,
+						   &changed);
+	if (err)
+		goto out;
 
 	err = drv_pre_channel_switch(sdata, &ch_switch);
 	if (err)
@@ -4891,8 +4897,11 @@  ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_bss_conf *link_conf;
+	struct ieee80211_link_data *link_data;
 	u64 changed = 0;
 	int err;
+	u8 link_id = params->link_id;
 
 	lockdep_assert_wiphy(local->hw.wiphy);
 
@@ -4907,6 +4916,11 @@  ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
 		goto out;
 	}
 
+	link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
+	if (!link_data)
+		return -ENOLINK;
+	link_conf = link_data->conf;
+
 	err = ieee80211_set_color_change_beacon(sdata, params, &changed);
 	if (err)
 		goto out;
@@ -4914,6 +4928,12 @@  ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
 	sdata->vif.bss_conf.color_change_active = true;
 	sdata->vif.bss_conf.color_change_color = params->color;
 
+	err = ieee80211_set_unsol_bcast_probe_resp(sdata, &params->unsol_bcast_probe_resp,
+						   link_data, link_conf,
+						   &changed);
+	if (err)
+		goto out;
+
 	cfg80211_color_change_started_notify(sdata->dev, params->count);
 
 	if (changed)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b2c6376705b3..1c665d80cbfa 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10248,6 +10248,14 @@  static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
 		params.block_tx = true;
 
+	if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) {
+		err = nl80211_parse_unsol_bcast_probe_resp(
+			rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP],
+			&params.unsol_bcast_probe_resp);
+		if (err)
+			goto free;
+	}
+
 	params.link_id = link_id;
 	err = rdev_channel_switch(rdev, dev, &params);
 
@@ -15965,6 +15973,7 @@  static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
 	struct nlattr **tb;
 	u16 offset;
 	int err;
+	unsigned int link_id = nl80211_link_id(info->attrs);
 
 	if (!rdev->ops->color_change)
 		return -EOPNOTSUPP;
@@ -16048,6 +16057,14 @@  static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
 
 		params.counter_offset_presp = offset;
 	}
+	params.link_id = link_id;
+	if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) {
+		err = nl80211_parse_unsol_bcast_probe_resp(
+			rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP],
+			&params.unsol_bcast_probe_resp);
+		if (err)
+			goto out;
+	}
 
 	err = rdev_color_change(rdev, dev, &params);
 
@@ -17451,7 +17468,8 @@  static const struct genl_small_ops nl80211_small_ops[] = {
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
 		.doit = nl80211_color_change,
 		.flags = GENL_UNS_ADMIN_PERM,
-		.internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
+		.internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
+					 NL80211_FLAG_MLO_VALID_LINK_ID),
 	},
 	{
 		.cmd = NL80211_CMD_SET_FILS_AAD,