133 static void netconsole_target_get(struct netconsole_target *nt)  in netconsole_target_get()  argument
135 	if (config_item_name(&nt->item))  in netconsole_target_get()
136 		config_item_get(&nt->item);  in netconsole_target_get()
139 static void netconsole_target_put(struct netconsole_target *nt)  in netconsole_target_put()  argument
141 	if (config_item_name(&nt->item))  in netconsole_target_put()
142 		config_item_put(&nt->item);  in netconsole_target_put()
160 static void netconsole_target_get(struct netconsole_target *nt)  in netconsole_target_get()  argument
164 static void netconsole_target_put(struct netconsole_target *nt)  in netconsole_target_put()  argument
175 	struct netconsole_target *nt;  in alloc_and_init()  local
177 	nt = kzalloc(sizeof(*nt), GFP_KERNEL);  in alloc_and_init()
178 	if (!nt)  in alloc_and_init()
179 		return nt;  in alloc_and_init()
182 		nt->extended = true;  in alloc_and_init()
184 		nt->release = true;  in alloc_and_init()
186 	nt->np.name = "netconsole";  in alloc_and_init()
187 	strscpy(nt->np.dev_name, "eth0", IFNAMSIZ);  in alloc_and_init()
188 	nt->np.local_port = 6665;  in alloc_and_init()
189 	nt->np.remote_port = 6666;  in alloc_and_init()
190 	eth_broadcast_addr(nt->np.remote_mac);  in alloc_and_init()
192 	return nt;  in alloc_and_init()
198 	struct netconsole_target *nt;  in alloc_param_target()  local
201 	nt = alloc_and_init();  in alloc_param_target()
202 	if (!nt) {  in alloc_param_target()
208 		nt->extended = true;  in alloc_param_target()
213 		if (!nt->extended) {  in alloc_param_target()
218 		nt->release = true;  in alloc_param_target()
223 	err = netpoll_parse_options(&nt->np, target_config);  in alloc_param_target()
227 	err = netpoll_setup(&nt->np);  in alloc_param_target()
231 	nt->enabled = true;  in alloc_param_target()
233 	return nt;  in alloc_param_target()
236 	kfree(nt);  in alloc_param_target()
241 static void free_param_target(struct netconsole_target *nt)  in free_param_target()  argument
243 	netpoll_cleanup(&nt->np);  in free_param_target()
244 	kfree(nt);  in free_param_target()
311 	struct netconsole_target *nt = to_target(item);  in local_ip_show()  local
313 	if (nt->np.ipv6)  in local_ip_show()
314 		return sysfs_emit(buf, "%pI6c\n", &nt->np.local_ip.in6);  in local_ip_show()
316 		return sysfs_emit(buf, "%pI4\n", &nt->np.local_ip);  in local_ip_show()
321 	struct netconsole_target *nt = to_target(item);  in remote_ip_show()  local
323 	if (nt->np.ipv6)  in remote_ip_show()
324 		return sysfs_emit(buf, "%pI6c\n", &nt->np.remote_ip.in6);  in remote_ip_show()
326 		return sysfs_emit(buf, "%pI4\n", &nt->np.remote_ip);  in remote_ip_show()
352 	struct netconsole_target *nt = to_target(item);  in enabled_store()  local
363 	if ((bool)enabled == nt->enabled) {  in enabled_store()
365 			nt->enabled ? "started" : "stopped");  in enabled_store()
370 		if (nt->release && !nt->extended) {  in enabled_store()
375 		if (nt->extended && !console_is_registered(&netconsole_ext))  in enabled_store()
382 		netpoll_print_options(&nt->np);  in enabled_store()
384 		err = netpoll_setup(&nt->np);  in enabled_store()
395 		nt->enabled = false;  in enabled_store()
397 		netpoll_cleanup(&nt->np);  in enabled_store()
400 	nt->enabled = enabled;  in enabled_store()
412 	struct netconsole_target *nt = to_target(item);  in release_store()  local
417 	if (nt->enabled) {  in release_store()
419 		       config_item_name(&nt->item));  in release_store()
428 	nt->release = release;  in release_store()
440 	struct netconsole_target *nt = to_target(item);  in extended_store()  local
445 	if (nt->enabled) {  in extended_store()
447 		       config_item_name(&nt->item));  in extended_store()
456 	nt->extended = extended;  in extended_store()
468 	struct netconsole_target *nt = to_target(item);  in dev_name_store()  local
472 	if (nt->enabled) {  in dev_name_store()
474 		       config_item_name(&nt->item));  in dev_name_store()
479 	strscpy(nt->np.dev_name, buf, IFNAMSIZ);  in dev_name_store()
482 	len = strnlen(nt->np.dev_name, IFNAMSIZ);  in dev_name_store()
483 	if (nt->np.dev_name[len - 1] == '\n')  in dev_name_store()
484 		nt->np.dev_name[len - 1] = '\0';  in dev_name_store()
493 	struct netconsole_target *nt = to_target(item);  in local_port_store()  local
497 	if (nt->enabled) {  in local_port_store()
499 		       config_item_name(&nt->item));  in local_port_store()
503 	rv = kstrtou16(buf, 10, &nt->np.local_port);  in local_port_store()
516 	struct netconsole_target *nt = to_target(item);  in remote_port_store()  local
520 	if (nt->enabled) {  in remote_port_store()
522 		       config_item_name(&nt->item));  in remote_port_store()
526 	rv = kstrtou16(buf, 10, &nt->np.remote_port);  in remote_port_store()
539 	struct netconsole_target *nt = to_target(item);  in local_ip_store()  local
542 	if (nt->enabled) {  in local_ip_store()
544 		       config_item_name(&nt->item));  in local_ip_store()
550 		if (in6_pton(buf, count, nt->np.local_ip.in6.s6_addr, -1, &end) > 0) {  in local_ip_store()
555 			nt->np.ipv6 = true;  in local_ip_store()
559 		if (!nt->np.ipv6) {  in local_ip_store()
560 			nt->np.local_ip.ip = in_aton(buf);  in local_ip_store()
575 	struct netconsole_target *nt = to_target(item);  in remote_ip_store()  local
578 	if (nt->enabled) {  in remote_ip_store()
580 		       config_item_name(&nt->item));  in remote_ip_store()
586 		if (in6_pton(buf, count, nt->np.remote_ip.in6.s6_addr, -1, &end) > 0) {  in remote_ip_store()
591 			nt->np.ipv6 = true;  in remote_ip_store()
595 		if (!nt->np.ipv6) {  in remote_ip_store()
596 			nt->np.remote_ip.ip = in_aton(buf);  in remote_ip_store()
611 	struct netconsole_target *nt = to_target(item);  in remote_mac_store()  local
615 	if (nt->enabled) {  in remote_mac_store()
617 		       config_item_name(&nt->item));  in remote_mac_store()
625 	memcpy(nt->np.remote_mac, remote_mac, ETH_ALEN);  in remote_mac_store()
685 	struct netconsole_target *nt;  in make_netconsole_target()  local
688 	nt = alloc_and_init();  in make_netconsole_target()
689 	if (!nt)  in make_netconsole_target()
693 	config_item_init_type_name(&nt->item, name, &netconsole_target_type);  in make_netconsole_target()
697 	list_add(&nt->list, &target_list);  in make_netconsole_target()
700 	return &nt->item;  in make_netconsole_target()
707 	struct netconsole_target *nt = to_target(item);  in drop_netconsole_target()  local
710 	list_del(&nt->list);  in drop_netconsole_target()
717 	if (nt->enabled)  in drop_netconsole_target()
718 		netpoll_cleanup(&nt->np);  in drop_netconsole_target()
720 	config_item_put(&nt->item);  in drop_netconsole_target()
750 	struct netconsole_target *nt;  in netconsole_netdev_event()  local
760 	list_for_each_entry(nt, &target_list, list) {  in netconsole_netdev_event()
761 		netconsole_target_get(nt);  in netconsole_netdev_event()
762 		if (nt->np.dev == dev) {  in netconsole_netdev_event()
765 				strscpy(nt->np.dev_name, dev->name, IFNAMSIZ);  in netconsole_netdev_event()
775 				__netpoll_cleanup(&nt->np);  in netconsole_netdev_event()
778 				netdev_put(nt->np.dev, &nt->np.dev_tracker);  in netconsole_netdev_event()
779 				nt->np.dev = NULL;  in netconsole_netdev_event()
780 				nt->enabled = false;  in netconsole_netdev_event()
782 				netconsole_target_put(nt);  in netconsole_netdev_event()
786 		netconsole_target_put(nt);  in netconsole_netdev_event()
824 static void send_ext_msg_udp(struct netconsole_target *nt, const char *msg,  in send_ext_msg_udp()  argument
835 	if (nt->release) {  in send_ext_msg_udp()
842 		if (nt->release) {  in send_ext_msg_udp()
847 		netpoll_send_udp(&nt->np, msg_ready, msg_len);  in send_ext_msg_udp()
865 	if (nt->release)  in send_ext_msg_udp()
885 		netpoll_send_udp(&nt->np, buf, this_header + this_chunk);  in send_ext_msg_udp()
894 	struct netconsole_target *nt;  in write_ext_msg()  local
901 	list_for_each_entry(nt, &target_list, list)  in write_ext_msg()
902 		if (nt->extended && nt->enabled && netif_running(nt->np.dev))  in write_ext_msg()
903 			send_ext_msg_udp(nt, msg, len);  in write_ext_msg()
911 	struct netconsole_target *nt;  in write_msg()  local
921 	list_for_each_entry(nt, &target_list, list) {  in write_msg()
922 		if (!nt->extended && nt->enabled && netif_running(nt->np.dev)) {  in write_msg()
932 				netpoll_send_udp(&nt->np, tmp, frag);  in write_msg()
956 	struct netconsole_target *nt, *tmp;  in init_netconsole()  local
964 			nt = alloc_param_target(target_config);  in init_netconsole()
965 			if (IS_ERR(nt)) {  in init_netconsole()
966 				err = PTR_ERR(nt);  in init_netconsole()
970 			if (nt->extended) {  in init_netconsole()
978 			list_add(&nt->list, &target_list);  in init_netconsole()
1009 	list_for_each_entry_safe(nt, tmp, &target_list, list) {  in init_netconsole()
1010 		list_del(&nt->list);  in init_netconsole()
1011 		free_param_target(nt);  in init_netconsole()
1019 	struct netconsole_target *nt, *tmp;  in cleanup_netconsole()  local
1035 	list_for_each_entry_safe(nt, tmp, &target_list, list) {  in cleanup_netconsole()
1036 		list_del(&nt->list);  in cleanup_netconsole()
1037 		free_param_target(nt);  in cleanup_netconsole()