add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/net/mac80211/mesh_plink.c
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@@ -1,10 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2008, 2009 open80211s Ltd.
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+ * Copyright (C) 2019 Intel Corporation
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  * Author:     Luis Carlos Cobo <luisca@cozybit.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/gfp.h>
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 #include <linux/kernel.h>
..
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@@ -146,6 +144,7 @@
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 /**
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  * mesh_set_ht_prot_mode - set correct HT protection mode
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+ * @sdata: the (mesh) interface to handle
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  *
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  * Section 9.23.3.5 of IEEE 80211-2012 describes the protection rules for HT
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  * mesh STA in a MBSS. Three HT protection modes are supported for now, non-HT
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@@ -220,9 +219,12 @@
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 	bool include_plid = false;
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 	u16 peering_proto = 0;
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 	u8 *pos, ie_len = 4;
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+	u8 ie_len_he_cap;
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 	int hdr_len = offsetofend(struct ieee80211_mgmt, u.action.u.self_prot);
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 	int err = -ENOMEM;
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+	ie_len_he_cap = ieee80211_ie_len_he_cap(sdata,
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+						NL80211_IFTYPE_MESH_POINT);
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 	skb = dev_alloc_skb(local->tx_headroom +
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 			    hdr_len +
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 			    2 + /* capability info */
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@@ -235,6 +237,10 @@
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 			    2 + sizeof(struct ieee80211_ht_operation) +
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 			    2 + sizeof(struct ieee80211_vht_cap) +
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 			    2 + sizeof(struct ieee80211_vht_operation) +
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+			    ie_len_he_cap +
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+			    2 + 1 + sizeof(struct ieee80211_he_operation) +
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+				    sizeof(struct ieee80211_he_6ghz_oper) +
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+			    2 + 1 + sizeof(struct ieee80211_he_6ghz_capa) +
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 			    2 + 8 + /* peering IE */
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 			    sdata->u.mesh.ie_len);
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 	if (!skb)
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@@ -323,7 +329,10 @@
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 		if (mesh_add_ht_cap_ie(sdata, skb) ||
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 		    mesh_add_ht_oper_ie(sdata, skb) ||
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 		    mesh_add_vht_cap_ie(sdata, skb) ||
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-		    mesh_add_vht_oper_ie(sdata, skb))
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+		    mesh_add_vht_oper_ie(sdata, skb) ||
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+		    mesh_add_he_cap_ie(sdata, skb, ie_len_he_cap) ||
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+		    mesh_add_he_oper_ie(sdata, skb) ||
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+		    mesh_add_he_6ghz_cap_ie(sdata, skb))
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 			goto free;
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 	}
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..
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@@ -435,6 +444,11 @@
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 	ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
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 					    elems->vht_cap_elem, sta);
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+	ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, elems->he_cap,
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+					  elems->he_cap_len,
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+					  elems->he_6ghz_capa,
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+					  sta);
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+
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 	if (bw != sta->sta.bandwidth)
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 		changed |= IEEE80211_RC_BW_CHANGED;
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@@ -513,7 +527,8 @@
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 static struct sta_info *
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 mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *addr,
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-		    struct ieee802_11_elems *elems)
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+		    struct ieee802_11_elems *elems,
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+		    struct ieee80211_rx_status *rx_status)
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 {
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 	struct sta_info *sta = NULL;
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@@ -521,11 +536,17 @@
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 	if (sdata->u.mesh.user_mpm ||
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 	    sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED) {
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 		if (mesh_peer_accepts_plinks(elems) &&
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-		    mesh_plink_availables(sdata))
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+		    mesh_plink_availables(sdata)) {
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+			int sig = 0;
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+
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+			if (ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
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+				sig = rx_status->signal;
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+
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 			cfg80211_notify_new_peer_candidate(sdata->dev, addr,
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 							   elems->ie_start,
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 							   elems->total_len,
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-							   GFP_KERNEL);
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+							   sig, GFP_KERNEL);
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+		}
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 	} else
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 		sta = __mesh_sta_info_alloc(sdata, addr);
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@@ -538,13 +559,15 @@
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  * @sdata: local meshif
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  * @addr: peer's address
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  * @elems: IEs from beacon or mesh peering frame.
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+ * @rx_status: rx status for the frame for signal reporting
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  *
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  * Return existing or newly allocated sta_info under RCU read lock.
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  * (re)initialize with given IEs.
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  */
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 static struct sta_info *
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 mesh_sta_info_get(struct ieee80211_sub_if_data *sdata,
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-		  u8 *addr, struct ieee802_11_elems *elems) __acquires(RCU)
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+		  u8 *addr, struct ieee802_11_elems *elems,
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+		  struct ieee80211_rx_status *rx_status) __acquires(RCU)
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 {
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 	struct sta_info *sta = NULL;
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@@ -555,7 +578,7 @@
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 	} else {
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 		rcu_read_unlock();
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 		/* can't run atomic */
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-		sta = mesh_sta_info_alloc(sdata, addr, elems);
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+		sta = mesh_sta_info_alloc(sdata, addr, elems, rx_status);
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 		if (!sta) {
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 			rcu_read_lock();
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 			return NULL;
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@@ -576,19 +599,24 @@
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  * @sdata: local meshif
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  * @addr: peer's address
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  * @elems: IEs from beacon or mesh peering frame
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+ * @rx_status: rx status for the frame for signal reporting
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  *
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  * Initiates peering if appropriate.
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  */
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 void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
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 			   u8 *hw_addr,
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-			   struct ieee802_11_elems *elems)
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+			   struct ieee802_11_elems *elems,
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+			   struct ieee80211_rx_status *rx_status)
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 {
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 	struct sta_info *sta;
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 	u32 changed = 0;
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-	sta = mesh_sta_info_get(sdata, hw_addr, elems);
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+	sta = mesh_sta_info_get(sdata, hw_addr, elems, rx_status);
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 	if (!sta)
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 		goto out;
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+
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+	sta->mesh->connected_to_gate = elems->mesh_config->meshconf_form &
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+		IEEE80211_MESHCONF_FORM_CONNECTED_TO_GATE;
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 	if (mesh_peer_accepts_plinks(elems) &&
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 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&
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@@ -672,7 +700,7 @@
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 			break;
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 		}
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 		reason = WLAN_REASON_MESH_MAX_RETRIES;
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-		/* fall through */
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+		fallthrough;
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 	case NL80211_PLINK_CNF_RCVD:
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 		/* confirm timer */
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 		if (!reason)
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@@ -1069,7 +1097,8 @@
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 static void
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 mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
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 			 struct ieee80211_mgmt *mgmt,
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-			 struct ieee802_11_elems *elems)
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+			 struct ieee802_11_elems *elems,
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+			 struct ieee80211_rx_status *rx_status)
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 {
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 	struct sta_info *sta;
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@@ -1134,7 +1163,7 @@
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 	if (event == OPN_ACPT) {
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 		rcu_read_unlock();
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 		/* allocate sta entry if necessary and update info */
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-		sta = mesh_sta_info_get(sdata, mgmt->sa, elems);
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+		sta = mesh_sta_info_get(sdata, mgmt->sa, elems, rx_status);
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 		if (!sta) {
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 			mpl_dbg(sdata, "Mesh plink: failed to init peer!\n");
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 			goto unlock_rcu;
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@@ -1199,6 +1228,7 @@
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 		if (baselen > len)
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 			return;
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 	}
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-	ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems);
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-	mesh_process_plink_frame(sdata, mgmt, &elems);
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+	ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems,
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+			       mgmt->bssid, NULL);
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+	mesh_process_plink_frame(sdata, mgmt, &elems, rx_status);
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1234
 }