87 	msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)
89 	msecs_to_jiffies(sdata->u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval)
106 				  struct ieee80211_sub_if_data *sdata)  in mesh_path_sel_frame_tx()  argument
108 	struct ieee80211_local *local = sdata->local;  in mesh_path_sel_frame_tx()
126 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);  in mesh_path_sel_frame_tx()
128 	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);  in mesh_path_sel_frame_tx()
135 		mhwmp_dbg(sdata, "sending PREQ to %pM\n", target);  in mesh_path_sel_frame_tx()
141 		mhwmp_dbg(sdata, "sending PREP to %pM\n", orig_addr);  in mesh_path_sel_frame_tx()
147 		mhwmp_dbg(sdata, "sending RANN from %pM\n", orig_addr);  in mesh_path_sel_frame_tx()
193 	ieee80211_tx_skb(sdata, skb);  in mesh_path_sel_frame_tx()
200 static void prepare_frame_for_deferred_tx(struct ieee80211_sub_if_data *sdata,  in prepare_frame_for_deferred_tx()  argument
214 	info->control.vif = &sdata->vif;  in prepare_frame_for_deferred_tx()
216 	ieee80211_set_qos_hdr(sdata, skb);  in prepare_frame_for_deferred_tx()
217 	ieee80211_mps_set_frame_flags(sdata, NULL, hdr);  in prepare_frame_for_deferred_tx()
234 int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,  in mesh_path_error_tx()  argument
238 	struct ieee80211_local *local = sdata->local;  in mesh_path_error_tx()
240 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_error_tx()
250 			    sdata->encrypt_headroom +  in mesh_path_error_tx()
256 	skb_reserve(skb, local->tx_headroom + sdata->encrypt_headroom);  in mesh_path_error_tx()
262 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);  in mesh_path_error_tx()
264 	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);  in mesh_path_error_tx()
288 	prepare_frame_for_deferred_tx(sdata, skb);  in mesh_path_error_tx()
380 static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,  in hwmp_route_info_get()  argument
384 	struct ieee80211_local *local = sdata->local;  in hwmp_route_info_get()
396 	sta = sta_info_get(sdata, mgmt->sa);  in hwmp_route_info_get()
435 	if (ether_addr_equal(orig_addr, sdata->vif.addr)) {  in hwmp_route_info_get()
442 		mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_route_info_get()
480 			mpath = mesh_path_add(sdata, orig_addr);  in hwmp_route_info_get()
518 		mpath = mesh_path_lookup(sdata, ta);  in hwmp_route_info_get()
528 			mpath = mesh_path_add(sdata, ta);  in hwmp_route_info_get()
559 static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_preq_frame_process()  argument
563 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_preq_frame_process()
583 	mhwmp_dbg(sdata, "received PREQ from %pM\n", orig_addr);  in hwmp_preq_frame_process()
585 	if (ether_addr_equal(target_addr, sdata->vif.addr)) {  in hwmp_preq_frame_process()
586 		mhwmp_dbg(sdata, "PREQ is for us\n");  in hwmp_preq_frame_process()
595 					net_traversal_jiffies(sdata)) ||  in hwmp_preq_frame_process()
604 		mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_preq_frame_process()
608 				target_addr = sdata->vif.addr;  in hwmp_preq_frame_process()
619 		mpath = mesh_path_lookup(sdata, target_addr);  in hwmp_preq_frame_process()
641 			mhwmp_dbg(sdata, "replying to the PREQ\n");  in hwmp_preq_frame_process()
646 					       sdata);  in hwmp_preq_frame_process()
662 		mhwmp_dbg(sdata, "forwarding the PREQ from %pM\n", orig_addr);  in hwmp_preq_frame_process()
677 				       orig_metric, preq_id, sdata);  in hwmp_preq_frame_process()
695 static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_prep_frame_process()  argument
699 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_prep_frame_process()
706 	mhwmp_dbg(sdata, "received PREP from %pM\n",  in hwmp_prep_frame_process()
710 	if (ether_addr_equal(orig_addr, sdata->vif.addr))  in hwmp_prep_frame_process()
719 		sdata->u.mesh.mshstats.dropped_frames_ttl++;  in hwmp_prep_frame_process()
724 	mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_prep_frame_process()
745 			       ttl, lifetime, metric, 0, sdata);  in hwmp_prep_frame_process()
748 	sdata->u.mesh.mshstats.fwded_unicast++;  in hwmp_prep_frame_process()
749 	sdata->u.mesh.mshstats.fwded_frames++;  in hwmp_prep_frame_process()
754 	sdata->u.mesh.mshstats.dropped_frames_no_route++;  in hwmp_prep_frame_process()
757 static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_perr_frame_process()  argument
761 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_perr_frame_process()
780 	mpath = mesh_path_lookup(sdata, target_addr);  in hwmp_perr_frame_process()
799 			mesh_path_error_tx(sdata, ttl, target_addr,  in hwmp_perr_frame_process()
809 static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_rann_frame_process()  argument
813 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_rann_frame_process()
814 	struct ieee80211_local *local = sdata->local;  in hwmp_rann_frame_process()
833 	if (ether_addr_equal(orig_addr, sdata->vif.addr))  in hwmp_rann_frame_process()
836 	mhwmp_dbg(sdata,  in hwmp_rann_frame_process()
841 	sta = sta_info_get(sdata, mgmt->sa);  in hwmp_rann_frame_process()
852 	mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_rann_frame_process()
854 		mpath = mesh_path_add(sdata, orig_addr);  in hwmp_rann_frame_process()
857 			sdata->u.mesh.mshstats.dropped_frames_no_route++;  in hwmp_rann_frame_process()
870 				  root_path_confirmation_jiffies(sdata)) ||  in hwmp_rann_frame_process()
873 		mhwmp_dbg(sdata,  in hwmp_rann_frame_process()
901 				       new_metric, 0, sdata);  in hwmp_rann_frame_process()
908 void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,  in mesh_rx_path_sel_frame()  argument
921 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_rx_path_sel_frame()
936 		path_metric = hwmp_route_info_get(sdata, mgmt, elems.preq,  in mesh_rx_path_sel_frame()
939 			hwmp_preq_frame_process(sdata, mgmt, elems.preq,  in mesh_rx_path_sel_frame()
946 		path_metric = hwmp_route_info_get(sdata, mgmt, elems.prep,  in mesh_rx_path_sel_frame()
949 			hwmp_prep_frame_process(sdata, mgmt, elems.prep,  in mesh_rx_path_sel_frame()
956 		hwmp_perr_frame_process(sdata, mgmt, elems.perr);  in mesh_rx_path_sel_frame()
959 		hwmp_rann_frame_process(sdata, mgmt, elems.rann);  in mesh_rx_path_sel_frame()
973 	struct ieee80211_sub_if_data *sdata = mpath->sdata;  in mesh_queue_preq()  local
974 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_queue_preq()
979 		mhwmp_dbg(sdata, "could not allocate PREQ node\n");  in mesh_queue_preq()
988 			mhwmp_dbg(sdata, "PREQ node queue full\n");  in mesh_queue_preq()
1010 	if (time_after(jiffies, ifmsh->last_preq + min_preq_int_jiff(sdata)))  in mesh_queue_preq()
1011 		ieee80211_queue_work(&sdata->local->hw, &sdata->work);  in mesh_queue_preq()
1017 		ifmsh->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;  in mesh_queue_preq()
1018 		ieee80211_queue_work(&sdata->local->hw, &sdata->work);  in mesh_queue_preq()
1021 						min_preq_int_jiff(sdata));  in mesh_queue_preq()
1029 void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)  in mesh_path_start_discovery()  argument
1031 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_start_discovery()
1041 				min_preq_int_jiff(sdata))) {  in mesh_path_start_discovery()
1053 	mpath = mesh_path_lookup(sdata, preq_node->dst);  in mesh_path_start_discovery()
1071 			mpath->discovery_timeout = disc_timeout_jiff(sdata);  in mesh_path_start_discovery()
1083 				net_traversal_jiffies(sdata)) ||  in mesh_path_start_discovery()
1086 		sdata->u.mesh.last_sn_update = jiffies;  in mesh_path_start_discovery()
1088 	lifetime = default_lifetime(sdata);  in mesh_path_start_discovery()
1089 	ttl = sdata->u.mesh.mshcfg.element_ttl;  in mesh_path_start_discovery()
1091 		sdata->u.mesh.mshstats.dropped_frames_ttl++;  in mesh_path_start_discovery()
1103 	mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->vif.addr, ifmsh->sn,  in mesh_path_start_discovery()
1105 			       ttl, lifetime, 0, ifmsh->preq_id++, sdata);  in mesh_path_start_discovery()
1129 int mesh_nexthop_resolve(struct ieee80211_sub_if_data *sdata,  in mesh_nexthop_resolve()  argument
1146 	if (!mesh_nexthop_lookup(sdata, skb))  in mesh_nexthop_resolve()
1150 	mpath = mesh_path_lookup(sdata, target_addr);  in mesh_nexthop_resolve()
1152 		mpath = mesh_path_add(sdata, target_addr);  in mesh_nexthop_resolve()
1154 			mesh_path_discard_frame(sdata, skb);  in mesh_nexthop_resolve()
1160 	    mesh_path_sel_is_hwmp(sdata))  in mesh_nexthop_resolve()
1167 	ieee80211_set_qos_hdr(sdata, skb);  in mesh_nexthop_resolve()
1170 		mesh_path_discard_frame(sdata, skb_to_free);  in mesh_nexthop_resolve()
1186 static int mesh_nexthop_lookup_nolearn(struct ieee80211_sub_if_data *sdata,  in mesh_nexthop_lookup_nolearn()  argument
1196 	sta = sta_info_get(sdata, hdr->addr3);  in mesh_nexthop_lookup_nolearn()
1205 	memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);  in mesh_nexthop_lookup_nolearn()
1219 int mesh_nexthop_lookup(struct ieee80211_sub_if_data *sdata,  in mesh_nexthop_lookup()  argument
1222 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_nexthop_lookup()
1229 	    !mesh_nexthop_lookup_nolearn(sdata, skb))  in mesh_nexthop_lookup()
1232 	mpath = mesh_path_lookup(sdata, target_addr);  in mesh_nexthop_lookup()
1238 		       msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) &&  in mesh_nexthop_lookup()
1239 	    ether_addr_equal(sdata->vif.addr, hdr->addr4) &&  in mesh_nexthop_lookup()
1247 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);  in mesh_nexthop_lookup()
1248 		ieee80211_mps_set_frame_flags(sdata, next_hop, hdr);  in mesh_nexthop_lookup()
1258 	struct ieee80211_sub_if_data *sdata = mpath->sdata;  in mesh_path_timer()  local
1261 	if (sdata->local->quiescing)  in mesh_path_timer()
1269 	} else if (mpath->discovery_retries < max_preq_retries(sdata)) {  in mesh_path_timer()
1281 		if (!mpath->is_gate && mesh_gate_num(sdata) > 0) {  in mesh_path_timer()
1284 				mhwmp_dbg(sdata, "no gate was reachable\n");  in mesh_path_timer()
1290 void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)  in mesh_path_tx_root_frame()  argument
1292 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_tx_root_frame()
1301 		mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr,  in mesh_path_tx_root_frame()
1304 				       interval, 0, 0, sdata);  in mesh_path_tx_root_frame()
1313 		mesh_path_sel_frame_tx(MPATH_PREQ, flags, sdata->vif.addr,  in mesh_path_tx_root_frame()
1317 				       0, ifmsh->preq_id++, sdata);  in mesh_path_tx_root_frame()
1320 		mhwmp_dbg(sdata, "Proactive mechanism not supported\n");  in mesh_path_tx_root_frame()