91 	msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)
93 	msecs_to_jiffies(sdata->u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval)
110 				  struct ieee80211_sub_if_data *sdata)  in mesh_path_sel_frame_tx()  argument
112 	struct ieee80211_local *local = sdata->local;  in mesh_path_sel_frame_tx()
131 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);  in mesh_path_sel_frame_tx()
133 	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);  in mesh_path_sel_frame_tx()
140 		mhwmp_dbg(sdata, "sending PREQ to %pM\n", target);  in mesh_path_sel_frame_tx()
146 		mhwmp_dbg(sdata, "sending PREP to %pM\n", orig_addr);  in mesh_path_sel_frame_tx()
152 		mhwmp_dbg(sdata, "sending RANN from %pM\n", orig_addr);  in mesh_path_sel_frame_tx()
198 	ieee80211_tx_skb(sdata, skb);  in mesh_path_sel_frame_tx()
205 static void prepare_frame_for_deferred_tx(struct ieee80211_sub_if_data *sdata,  in prepare_frame_for_deferred_tx()  argument
219 	info->control.vif = &sdata->vif;  in prepare_frame_for_deferred_tx()
221 	ieee80211_set_qos_hdr(sdata, skb);  in prepare_frame_for_deferred_tx()
222 	ieee80211_mps_set_frame_flags(sdata, NULL, hdr);  in prepare_frame_for_deferred_tx()
239 int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,  in mesh_path_error_tx()  argument
243 	struct ieee80211_local *local = sdata->local;  in mesh_path_error_tx()
245 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_error_tx()
255 			    sdata->encrypt_headroom +  in mesh_path_error_tx()
261 	skb_reserve(skb, local->tx_headroom + sdata->encrypt_headroom);  in mesh_path_error_tx()
268 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);  in mesh_path_error_tx()
270 	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);  in mesh_path_error_tx()
299 	prepare_frame_for_deferred_tx(sdata, skb);  in mesh_path_error_tx()
372 static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,  in hwmp_route_info_get()  argument
376 	struct ieee80211_local *local = sdata->local;  in hwmp_route_info_get()
387 	sta = sta_info_get(sdata, mgmt->sa);  in hwmp_route_info_get()
424 	if (ether_addr_equal(orig_addr, sdata->vif.addr)) {  in hwmp_route_info_get()
431 		mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_route_info_get()
446 			mpath = mesh_path_add(sdata, orig_addr);  in hwmp_route_info_get()
478 		mpath = mesh_path_lookup(sdata, ta);  in hwmp_route_info_get()
486 			mpath = mesh_path_add(sdata, ta);  in hwmp_route_info_get()
511 static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_preq_frame_process()  argument
515 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_preq_frame_process()
536 	mhwmp_dbg(sdata, "received PREQ from %pM\n", orig_addr);  in hwmp_preq_frame_process()
538 	if (ether_addr_equal(target_addr, sdata->vif.addr)) {  in hwmp_preq_frame_process()
539 		mhwmp_dbg(sdata, "PREQ is for us\n");  in hwmp_preq_frame_process()
544 					net_traversal_jiffies(sdata)) ||  in hwmp_preq_frame_process()
553 		mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_preq_frame_process()
557 				target_addr = sdata->vif.addr;  in hwmp_preq_frame_process()
568 		mpath = mesh_path_lookup(sdata, target_addr);  in hwmp_preq_frame_process()
592 			mhwmp_dbg(sdata, "replying to the PREQ\n");  in hwmp_preq_frame_process()
596 					       lifetime, metric, 0, sdata);  in hwmp_preq_frame_process()
612 		mhwmp_dbg(sdata, "forwarding the PREQ from %pM\n", orig_addr);  in hwmp_preq_frame_process()
628 				       metric, preq_id, sdata);  in hwmp_preq_frame_process()
646 static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_prep_frame_process()  argument
650 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_prep_frame_process()
657 	mhwmp_dbg(sdata, "received PREP from %pM\n",  in hwmp_prep_frame_process()
661 	if (ether_addr_equal(orig_addr, sdata->vif.addr))  in hwmp_prep_frame_process()
670 		sdata->u.mesh.mshstats.dropped_frames_ttl++;  in hwmp_prep_frame_process()
675 	mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_prep_frame_process()
696 			       ttl, lifetime, metric, 0, sdata);  in hwmp_prep_frame_process()
699 	sdata->u.mesh.mshstats.fwded_unicast++;  in hwmp_prep_frame_process()
700 	sdata->u.mesh.mshstats.fwded_frames++;  in hwmp_prep_frame_process()
705 	sdata->u.mesh.mshstats.dropped_frames_no_route++;  in hwmp_prep_frame_process()
708 static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_perr_frame_process()  argument
712 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_perr_frame_process()
731 	mpath = mesh_path_lookup(sdata, target_addr);  in hwmp_perr_frame_process()
746 			mesh_path_error_tx(sdata, ttl, target_addr,  in hwmp_perr_frame_process()
756 static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,  in hwmp_rann_frame_process()  argument
760 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in hwmp_rann_frame_process()
761 	struct ieee80211_local *local = sdata->local;  in hwmp_rann_frame_process()
780 	if (ether_addr_equal(orig_addr, sdata->vif.addr))  in hwmp_rann_frame_process()
783 	mhwmp_dbg(sdata,  in hwmp_rann_frame_process()
788 	sta = sta_info_get(sdata, mgmt->sa);  in hwmp_rann_frame_process()
796 	mpath = mesh_path_lookup(sdata, orig_addr);  in hwmp_rann_frame_process()
798 		mpath = mesh_path_add(sdata, orig_addr);  in hwmp_rann_frame_process()
801 			sdata->u.mesh.mshstats.dropped_frames_no_route++;  in hwmp_rann_frame_process()
814 				  root_path_confirmation_jiffies(sdata)) ||  in hwmp_rann_frame_process()
817 		mhwmp_dbg(sdata,  in hwmp_rann_frame_process()
845 				       metric + metric_txsta, 0, sdata);  in hwmp_rann_frame_process()
852 void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,  in mesh_rx_path_sel_frame()  argument
865 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_rx_path_sel_frame()
880 		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq,  in mesh_rx_path_sel_frame()
883 			hwmp_preq_frame_process(sdata, mgmt, elems.preq,  in mesh_rx_path_sel_frame()
890 		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep,  in mesh_rx_path_sel_frame()
893 			hwmp_prep_frame_process(sdata, mgmt, elems.prep,  in mesh_rx_path_sel_frame()
900 		hwmp_perr_frame_process(sdata, mgmt, elems.perr);  in mesh_rx_path_sel_frame()
903 		hwmp_rann_frame_process(sdata, mgmt, elems.rann);  in mesh_rx_path_sel_frame()
917 	struct ieee80211_sub_if_data *sdata = mpath->sdata;  in mesh_queue_preq()  local
918 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_queue_preq()
923 		mhwmp_dbg(sdata, "could not allocate PREQ node\n");  in mesh_queue_preq()
932 			mhwmp_dbg(sdata, "PREQ node queue full\n");  in mesh_queue_preq()
954 	if (time_after(jiffies, ifmsh->last_preq + min_preq_int_jiff(sdata)))  in mesh_queue_preq()
955 		ieee80211_queue_work(&sdata->local->hw, &sdata->work);  in mesh_queue_preq()
961 		ifmsh->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;  in mesh_queue_preq()
962 		ieee80211_queue_work(&sdata->local->hw, &sdata->work);  in mesh_queue_preq()
965 						min_preq_int_jiff(sdata));  in mesh_queue_preq()
973 void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)  in mesh_path_start_discovery()  argument
975 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_start_discovery()
985 				min_preq_int_jiff(sdata))) {  in mesh_path_start_discovery()
997 	mpath = mesh_path_lookup(sdata, preq_node->dst);  in mesh_path_start_discovery()
1011 			mpath->discovery_timeout = disc_timeout_jiff(sdata);  in mesh_path_start_discovery()
1023 				net_traversal_jiffies(sdata)) ||  in mesh_path_start_discovery()
1026 		sdata->u.mesh.last_sn_update = jiffies;  in mesh_path_start_discovery()
1028 	lifetime = default_lifetime(sdata);  in mesh_path_start_discovery()
1029 	ttl = sdata->u.mesh.mshcfg.element_ttl;  in mesh_path_start_discovery()
1031 		sdata->u.mesh.mshstats.dropped_frames_ttl++;  in mesh_path_start_discovery()
1043 	mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->vif.addr, ifmsh->sn,  in mesh_path_start_discovery()
1045 			       ttl, lifetime, 0, ifmsh->preq_id++, sdata);  in mesh_path_start_discovery()
1065 int mesh_nexthop_resolve(struct ieee80211_sub_if_data *sdata,  in mesh_nexthop_resolve()  argument
1080 	err = mesh_nexthop_lookup(sdata, skb);  in mesh_nexthop_resolve()
1085 	mpath = mesh_path_lookup(sdata, target_addr);  in mesh_nexthop_resolve()
1087 		mpath = mesh_path_add(sdata, target_addr);  in mesh_nexthop_resolve()
1089 			mesh_path_discard_frame(sdata, skb);  in mesh_nexthop_resolve()
1102 	ieee80211_set_qos_hdr(sdata, skb);  in mesh_nexthop_resolve()
1106 		mesh_path_discard_frame(sdata, skb_to_free);  in mesh_nexthop_resolve()
1123 int mesh_nexthop_lookup(struct ieee80211_sub_if_data *sdata,  in mesh_nexthop_lookup()  argument
1133 	mpath = mesh_path_lookup(sdata, target_addr);  in mesh_nexthop_lookup()
1140 		       msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) &&  in mesh_nexthop_lookup()
1141 	    ether_addr_equal(sdata->vif.addr, hdr->addr4) &&  in mesh_nexthop_lookup()
1149 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);  in mesh_nexthop_lookup()
1150 		ieee80211_mps_set_frame_flags(sdata, next_hop, hdr);  in mesh_nexthop_lookup()
1162 	struct ieee80211_sub_if_data *sdata = mpath->sdata;  in mesh_path_timer()  local
1165 	if (sdata->local->quiescing)  in mesh_path_timer()
1173 	} else if (mpath->discovery_retries < max_preq_retries(sdata)) {  in mesh_path_timer()
1183 		if (!mpath->is_gate && mesh_gate_num(sdata) > 0) {  in mesh_path_timer()
1186 				mhwmp_dbg(sdata, "no gate was reachable\n");  in mesh_path_timer()
1192 void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)  in mesh_path_tx_root_frame()  argument
1194 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;  in mesh_path_tx_root_frame()
1203 		mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr,  in mesh_path_tx_root_frame()
1206 				       interval, 0, 0, sdata);  in mesh_path_tx_root_frame()
1214 		mesh_path_sel_frame_tx(MPATH_PREQ, flags, sdata->vif.addr,  in mesh_path_tx_root_frame()
1218 				       0, ifmsh->preq_id++, sdata);  in mesh_path_tx_root_frame()
1221 		mhwmp_dbg(sdata, "Proactive mechanism not supported\n");  in mesh_path_tx_root_frame()