1 // SPDX-License-Identifier: GPL-2.0-or-later
9  * Author: Paul Moore <paul@paul-moore.com>
13  * (c) Copyright Hewlett-Packard Development Company, L.P., 2006 - 2008
54  * LSM.  The hash table is used to lookup the network interface entry
55  * (struct netlbl_unlhsh_iface) and then the interface entry is used to
56  * lookup an IP address match from an ordered list.  If a network interface
57  * match can not be found in the hash table then the default entry
58  * (netlbl_unlhsh_def) is used.  The IP address entry list
126 				   .len = IFNAMSIZ - 1 },
135  * netlbl_unlhsh_free_iface - Frees an interface entry from the hash table
136  * @entry: the entry's RCU field
140  * function so that memory allocated to a hash table interface entry can be
142  * the IPv4 and IPv6 address lists contained as part of an interface entry.  It
143  * is up to the rest of the code to make sure an interface entry is only freed
144  * once it's address lists are empty.
147 static void netlbl_unlhsh_free_iface(struct rcu_head *entry)  in netlbl_unlhsh_free_iface()  argument
157 	iface = container_of(entry, struct netlbl_unlhsh_iface, rcu);  in netlbl_unlhsh_free_iface()
162 	netlbl_af4list_foreach_safe(iter4, tmp4, &iface->addr4_list) {  in netlbl_unlhsh_free_iface()
167 	netlbl_af6list_foreach_safe(iter6, tmp6, &iface->addr6_list) {  in netlbl_unlhsh_free_iface()
176  * netlbl_unlhsh_hash - Hashing function for the hash table
188 	return ifindex & (netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->size - 1);  in netlbl_unlhsh_hash()
192  * netlbl_unlhsh_search_iface - Search for a matching interface entry
197  * interface entry which matches @ifindex, otherwise NULL is returned.  The
209 	bkt_list = &netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->tbl[bkt];  in netlbl_unlhsh_search_iface()
212 		if (iter->valid && iter->ifindex == ifindex)  in netlbl_unlhsh_search_iface()
219  * netlbl_unlhsh_add_addr4 - Add a new IPv4 address entry to the hash table
220  * @iface: the associated interface entry
221  * @addr: IPv4 address in network byte order
222  * @mask: IPv4 address mask in network byte order
223  * @secid: LSM secid value for entry
226  * Add a new address entry into the unlabeled connection hash table using the
227  * interface entry specified by @iface.  On success zero is returned, otherwise
237 	struct netlbl_unlhsh_addr4 *entry;  in netlbl_unlhsh_add_addr4()  local
239 	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);  in netlbl_unlhsh_add_addr4()
240 	if (entry == NULL)  in netlbl_unlhsh_add_addr4()
241 		return -ENOMEM;  in netlbl_unlhsh_add_addr4()
243 	entry->list.addr = addr->s_addr & mask->s_addr;  in netlbl_unlhsh_add_addr4()
244 	entry->list.mask = mask->s_addr;  in netlbl_unlhsh_add_addr4()
245 	entry->list.valid = 1;  in netlbl_unlhsh_add_addr4()
246 	entry->secid = secid;  in netlbl_unlhsh_add_addr4()
249 	ret_val = netlbl_af4list_add(&entry->list, &iface->addr4_list);  in netlbl_unlhsh_add_addr4()
253 		kfree(entry);  in netlbl_unlhsh_add_addr4()
259  * netlbl_unlhsh_add_addr6 - Add a new IPv6 address entry to the hash table
260  * @iface: the associated interface entry
261  * @addr: IPv6 address in network byte order
262  * @mask: IPv6 address mask in network byte order
263  * @secid: LSM secid value for entry
266  * Add a new address entry into the unlabeled connection hash table using the
267  * interface entry specified by @iface.  On success zero is returned, otherwise
277 	struct netlbl_unlhsh_addr6 *entry;  in netlbl_unlhsh_add_addr6()  local
279 	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);  in netlbl_unlhsh_add_addr6()
280 	if (entry == NULL)  in netlbl_unlhsh_add_addr6()
281 		return -ENOMEM;  in netlbl_unlhsh_add_addr6()
283 	entry->list.addr = *addr;  in netlbl_unlhsh_add_addr6()
284 	entry->list.addr.s6_addr32[0] &= mask->s6_addr32[0];  in netlbl_unlhsh_add_addr6()
285 	entry->list.addr.s6_addr32[1] &= mask->s6_addr32[1];  in netlbl_unlhsh_add_addr6()
286 	entry->list.addr.s6_addr32[2] &= mask->s6_addr32[2];  in netlbl_unlhsh_add_addr6()
287 	entry->list.addr.s6_addr32[3] &= mask->s6_addr32[3];  in netlbl_unlhsh_add_addr6()
288 	entry->list.mask = *mask;  in netlbl_unlhsh_add_addr6()
289 	entry->list.valid = 1;  in netlbl_unlhsh_add_addr6()
290 	entry->secid = secid;  in netlbl_unlhsh_add_addr6()
293 	ret_val = netlbl_af6list_add(&entry->list, &iface->addr6_list);  in netlbl_unlhsh_add_addr6()
297 		kfree(entry);  in netlbl_unlhsh_add_addr6()
303  * netlbl_unlhsh_add_iface - Adds a new interface entry to the hash table
307  * Add a new, empty, interface entry into the unlabeled connection hash table.
308  * On success a pointer to the new interface entry is returned, on failure NULL
321 	iface->ifindex = ifindex;  in netlbl_unlhsh_add_iface()
322 	INIT_LIST_HEAD(&iface->addr4_list);  in netlbl_unlhsh_add_iface()
323 	INIT_LIST_HEAD(&iface->addr6_list);  in netlbl_unlhsh_add_iface()
324 	iface->valid = 1;  in netlbl_unlhsh_add_iface()
331 		list_add_tail_rcu(&iface->list,  in netlbl_unlhsh_add_iface()
332 			     &netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->tbl[bkt]);  in netlbl_unlhsh_add_iface()
334 		INIT_LIST_HEAD(&iface->list);  in netlbl_unlhsh_add_iface()
350  * netlbl_unlhsh_add - Adds a new entry to the unlabeled connection hash table
353  * @addr: IP address in network byte order
354  * @mask: address mask in network byte order
355  * @addr_len: length of address/mask (4 for IPv4, 16 for IPv6)
356  * @secid: LSM secid value for the entry
360  * Adds a new entry to the unlabeled connection hash table.  Returns zero on
382 		return -EINVAL;  in netlbl_unlhsh_add()
388 			ret_val = -ENODEV;  in netlbl_unlhsh_add()
391 		ifindex = dev->ifindex;  in netlbl_unlhsh_add()
400 			ret_val = -ENOMEM;  in netlbl_unlhsh_add()
415 						  addr4->s_addr,  in netlbl_unlhsh_add()
416 						  mask4->s_addr);  in netlbl_unlhsh_add()
433 		ret_val = -EINVAL;  in netlbl_unlhsh_add()
454  * netlbl_unlhsh_remove_addr4 - Remove an IPv4 address entry
456  * @iface: interface entry
457  * @addr: IP address
458  * @mask: IP address mask
462  * Remove an IP address entry from the unlabeled connection hash table.
473 	struct netlbl_unlhsh_addr4 *entry;  in netlbl_unlhsh_remove_addr4()  local
480 	list_entry = netlbl_af4list_remove(addr->s_addr, mask->s_addr,  in netlbl_unlhsh_remove_addr4()
481 					   &iface->addr4_list);  in netlbl_unlhsh_remove_addr4()
484 		entry = netlbl_unlhsh_addr4_entry(list_entry);  in netlbl_unlhsh_remove_addr4()
486 		entry = NULL;  in netlbl_unlhsh_remove_addr4()
491 		dev = dev_get_by_index(net, iface->ifindex);  in netlbl_unlhsh_remove_addr4()
493 					  (dev != NULL ? dev->name : NULL),  in netlbl_unlhsh_remove_addr4()
494 					  addr->s_addr, mask->s_addr);  in netlbl_unlhsh_remove_addr4()
496 		if (entry != NULL &&  in netlbl_unlhsh_remove_addr4()
497 		    security_secid_to_secctx(entry->secid,  in netlbl_unlhsh_remove_addr4()
502 		audit_log_format(audit_buf, " res=%u", entry != NULL ? 1 : 0);  in netlbl_unlhsh_remove_addr4()
506 	if (entry == NULL)  in netlbl_unlhsh_remove_addr4()
507 		return -ENOENT;  in netlbl_unlhsh_remove_addr4()
509 	kfree_rcu(entry, rcu);  in netlbl_unlhsh_remove_addr4()
515  * netlbl_unlhsh_remove_addr6 - Remove an IPv6 address entry
517  * @iface: interface entry
518  * @addr: IP address
519  * @mask: IP address mask
523  * Remove an IP address entry from the unlabeled connection hash table.
534 	struct netlbl_unlhsh_addr6 *entry;  in netlbl_unlhsh_remove_addr6()  local
541 	list_entry = netlbl_af6list_remove(addr, mask, &iface->addr6_list);  in netlbl_unlhsh_remove_addr6()
544 		entry = netlbl_unlhsh_addr6_entry(list_entry);  in netlbl_unlhsh_remove_addr6()
546 		entry = NULL;  in netlbl_unlhsh_remove_addr6()
551 		dev = dev_get_by_index(net, iface->ifindex);  in netlbl_unlhsh_remove_addr6()
553 					  (dev != NULL ? dev->name : NULL),  in netlbl_unlhsh_remove_addr6()
556 		if (entry != NULL &&  in netlbl_unlhsh_remove_addr6()
557 		    security_secid_to_secctx(entry->secid,  in netlbl_unlhsh_remove_addr6()
562 		audit_log_format(audit_buf, " res=%u", entry != NULL ? 1 : 0);  in netlbl_unlhsh_remove_addr6()
566 	if (entry == NULL)  in netlbl_unlhsh_remove_addr6()
567 		return -ENOENT;  in netlbl_unlhsh_remove_addr6()
569 	kfree_rcu(entry, rcu);  in netlbl_unlhsh_remove_addr6()
575  * netlbl_unlhsh_condremove_iface - Remove an interface entry
576  * @iface: the interface entry
579  * Remove an interface entry from the unlabeled connection hash table if it is
580  * empty.  An interface entry is considered to be empty if there are no
581  * address entries assigned to it.
592 	netlbl_af4list_foreach_rcu(iter4, &iface->addr4_list)  in netlbl_unlhsh_condremove_iface()
595 	netlbl_af6list_foreach_rcu(iter6, &iface->addr6_list)  in netlbl_unlhsh_condremove_iface()
598 	iface->valid = 0;  in netlbl_unlhsh_condremove_iface()
599 	if (iface->ifindex > 0)  in netlbl_unlhsh_condremove_iface()
600 		list_del_rcu(&iface->list);  in netlbl_unlhsh_condremove_iface()
605 	call_rcu(&iface->rcu, netlbl_unlhsh_free_iface);  in netlbl_unlhsh_condremove_iface()
613  * netlbl_unlhsh_remove - Remove an entry from the unlabeled hash table
616  * @addr: IP address in network byte order
617  * @mask: address mask in network byte order
618  * @addr_len: length of address/mask (4 for IPv4, 16 for IPv6)
622  * Removes and existing entry from the unlabeled connection hash table.
639 		return -EINVAL;  in netlbl_unlhsh_remove()
645 			ret_val = -ENODEV;  in netlbl_unlhsh_remove()
648 		iface = netlbl_unlhsh_search_iface(dev->ifindex);  in netlbl_unlhsh_remove()
652 		ret_val = -ENOENT;  in netlbl_unlhsh_remove()
669 		ret_val = -EINVAL;  in netlbl_unlhsh_remove()
686  * netlbl_unlhsh_netdev_handler - Network device notification handler
706 	/* XXX - should this be a check for NETDEV_DOWN or _UNREGISTER? */  in netlbl_unlhsh_netdev_handler()
709 		iface = netlbl_unlhsh_search_iface(dev->ifindex);  in netlbl_unlhsh_netdev_handler()
710 		if (iface != NULL && iface->valid) {  in netlbl_unlhsh_netdev_handler()
711 			iface->valid = 0;  in netlbl_unlhsh_netdev_handler()
712 			list_del_rcu(&iface->list);  in netlbl_unlhsh_netdev_handler()
719 		call_rcu(&iface->rcu, netlbl_unlhsh_free_iface);  in netlbl_unlhsh_netdev_handler()
725  * netlbl_unlabel_acceptflg_set - Set the unlabeled accept flag
751  * netlbl_unlabel_addrinfo_get - Get the IPv4/6 address information
753  * @addr: the IP address
754  * @mask: the IP address mask
755  * @len: the address length
758  * Examine the Generic NETLINK message and extract the IP address information.
769 	if (info->attrs[NLBL_UNLABEL_A_IPV4ADDR] &&  in netlbl_unlabel_addrinfo_get()
770 	    info->attrs[NLBL_UNLABEL_A_IPV4MASK]) {  in netlbl_unlabel_addrinfo_get()
771 		addr_len = nla_len(info->attrs[NLBL_UNLABEL_A_IPV4ADDR]);  in netlbl_unlabel_addrinfo_get()
773 		    addr_len != nla_len(info->attrs[NLBL_UNLABEL_A_IPV4MASK]))  in netlbl_unlabel_addrinfo_get()
774 			return -EINVAL;  in netlbl_unlabel_addrinfo_get()
776 		*addr = nla_data(info->attrs[NLBL_UNLABEL_A_IPV4ADDR]);  in netlbl_unlabel_addrinfo_get()
777 		*mask = nla_data(info->attrs[NLBL_UNLABEL_A_IPV4MASK]);  in netlbl_unlabel_addrinfo_get()
779 	} else if (info->attrs[NLBL_UNLABEL_A_IPV6ADDR]) {  in netlbl_unlabel_addrinfo_get()
780 		addr_len = nla_len(info->attrs[NLBL_UNLABEL_A_IPV6ADDR]);  in netlbl_unlabel_addrinfo_get()
782 		    addr_len != nla_len(info->attrs[NLBL_UNLABEL_A_IPV6MASK]))  in netlbl_unlabel_addrinfo_get()
783 			return -EINVAL;  in netlbl_unlabel_addrinfo_get()
785 		*addr = nla_data(info->attrs[NLBL_UNLABEL_A_IPV6ADDR]);  in netlbl_unlabel_addrinfo_get()
786 		*mask = nla_data(info->attrs[NLBL_UNLABEL_A_IPV6MASK]);  in netlbl_unlabel_addrinfo_get()
790 	return -EINVAL;  in netlbl_unlabel_addrinfo_get()
798  * netlbl_unlabel_accept - Handle an ACCEPT message
812 	if (info->attrs[NLBL_UNLABEL_A_ACPTFLG]) {  in netlbl_unlabel_accept()
813 		value = nla_get_u8(info->attrs[NLBL_UNLABEL_A_ACPTFLG]);  in netlbl_unlabel_accept()
821 	return -EINVAL;  in netlbl_unlabel_accept()
825  * netlbl_unlabel_list - Handle a LIST message
836 	int ret_val = -EINVAL;  in netlbl_unlabel_list()
846 		ret_val = -ENOMEM;  in netlbl_unlabel_list()
865  * netlbl_unlabel_staticadd - Handle a STATICADD message
871  * connection entry to the hash table.  Returns zero on success, negative
887 	 * single entry.  However, allow users to create two entries, one each  in netlbl_unlabel_staticadd()
890 	if (!info->attrs[NLBL_UNLABEL_A_SECCTX] ||  in netlbl_unlabel_staticadd()
891 	    !info->attrs[NLBL_UNLABEL_A_IFACE] ||  in netlbl_unlabel_staticadd()
892 	    !((!info->attrs[NLBL_UNLABEL_A_IPV4ADDR] ||  in netlbl_unlabel_staticadd()
893 	       !info->attrs[NLBL_UNLABEL_A_IPV4MASK]) ^  in netlbl_unlabel_staticadd()
894 	      (!info->attrs[NLBL_UNLABEL_A_IPV6ADDR] ||  in netlbl_unlabel_staticadd()
895 	       !info->attrs[NLBL_UNLABEL_A_IPV6MASK])))  in netlbl_unlabel_staticadd()
896 		return -EINVAL;  in netlbl_unlabel_staticadd()
903 	dev_name = nla_data(info->attrs[NLBL_UNLABEL_A_IFACE]);  in netlbl_unlabel_staticadd()
905 		                  nla_data(info->attrs[NLBL_UNLABEL_A_SECCTX]),  in netlbl_unlabel_staticadd()
906 				  nla_len(info->attrs[NLBL_UNLABEL_A_SECCTX]),  in netlbl_unlabel_staticadd()
917  * netlbl_unlabel_staticadddef - Handle a STATICADDDEF message
923  * unlabeled connection entry.  Returns zero on success, negative values on
938 	 * single entry.  However, allow users to create two entries, one each  in netlbl_unlabel_staticadddef()
941 	if (!info->attrs[NLBL_UNLABEL_A_SECCTX] ||  in netlbl_unlabel_staticadddef()
942 	    !((!info->attrs[NLBL_UNLABEL_A_IPV4ADDR] ||  in netlbl_unlabel_staticadddef()
943 	       !info->attrs[NLBL_UNLABEL_A_IPV4MASK]) ^  in netlbl_unlabel_staticadddef()
944 	      (!info->attrs[NLBL_UNLABEL_A_IPV6ADDR] ||  in netlbl_unlabel_staticadddef()
945 	       !info->attrs[NLBL_UNLABEL_A_IPV6MASK])))  in netlbl_unlabel_staticadddef()
946 		return -EINVAL;  in netlbl_unlabel_staticadddef()
954 		                  nla_data(info->attrs[NLBL_UNLABEL_A_SECCTX]),  in netlbl_unlabel_staticadddef()
955 				  nla_len(info->attrs[NLBL_UNLABEL_A_SECCTX]),  in netlbl_unlabel_staticadddef()
966  * netlbl_unlabel_staticremove - Handle a STATICREMOVE message
972  * unlabeled connection entry.  Returns zero on success, negative values on
987 	 * IPv4 and IPv6 in the same entry. */  in netlbl_unlabel_staticremove()
988 	if (!info->attrs[NLBL_UNLABEL_A_IFACE] ||  in netlbl_unlabel_staticremove()
989 	    !((!info->attrs[NLBL_UNLABEL_A_IPV4ADDR] ||  in netlbl_unlabel_staticremove()
990 	       !info->attrs[NLBL_UNLABEL_A_IPV4MASK]) ^  in netlbl_unlabel_staticremove()
991 	      (!info->attrs[NLBL_UNLABEL_A_IPV6ADDR] ||  in netlbl_unlabel_staticremove()
992 	       !info->attrs[NLBL_UNLABEL_A_IPV6MASK])))  in netlbl_unlabel_staticremove()
993 		return -EINVAL;  in netlbl_unlabel_staticremove()
1000 	dev_name = nla_data(info->attrs[NLBL_UNLABEL_A_IFACE]);  in netlbl_unlabel_staticremove()
1008  * netlbl_unlabel_staticremovedef - Handle a STATICREMOVEDEF message
1014  * unlabeled connection entry.  Returns zero on success, negative values on
1028 	 * IPv4 and IPv6 in the same entry. */  in netlbl_unlabel_staticremovedef()
1029 	if (!((!info->attrs[NLBL_UNLABEL_A_IPV4ADDR] ||  in netlbl_unlabel_staticremovedef()
1030 	       !info->attrs[NLBL_UNLABEL_A_IPV4MASK]) ^  in netlbl_unlabel_staticremovedef()
1031 	      (!info->attrs[NLBL_UNLABEL_A_IPV6ADDR] ||  in netlbl_unlabel_staticremovedef()
1032 	       !info->attrs[NLBL_UNLABEL_A_IPV6MASK])))  in netlbl_unlabel_staticremovedef()
1033 		return -EINVAL;  in netlbl_unlabel_staticremovedef()
1048  * netlbl_unlabel_staticlist_gen - Generate messages for STATICLIST[DEF]
1050  * @iface: the interface entry
1051  * @addr4: the IPv4 address entry
1052  * @addr6: the IPv6 address entry
1058  * can be specified, not both, the other unspecified entry should be set to
1069 	int ret_val = -ENOMEM;  in netlbl_unlabel_staticlist_gen()
1077 	data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).portid,  in netlbl_unlabel_staticlist_gen()
1078 			   cb_arg->seq, &netlbl_unlabel_gnl_family,  in netlbl_unlabel_staticlist_gen()
1083 	if (iface->ifindex > 0) {  in netlbl_unlabel_staticlist_gen()
1084 		dev = dev_get_by_index(&init_net, iface->ifindex);  in netlbl_unlabel_staticlist_gen()
1086 			ret_val = -ENODEV;  in netlbl_unlabel_staticlist_gen()
1089 		ret_val = nla_put_string(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1090 					 NLBL_UNLABEL_A_IFACE, dev->name);  in netlbl_unlabel_staticlist_gen()
1099 		addr_struct.s_addr = addr4->list.addr;  in netlbl_unlabel_staticlist_gen()
1100 		ret_val = nla_put_in_addr(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1106 		addr_struct.s_addr = addr4->list.mask;  in netlbl_unlabel_staticlist_gen()
1107 		ret_val = nla_put_in_addr(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1113 		secid = addr4->secid;  in netlbl_unlabel_staticlist_gen()
1115 		ret_val = nla_put_in6_addr(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1117 					   &addr6->list.addr);  in netlbl_unlabel_staticlist_gen()
1121 		ret_val = nla_put_in6_addr(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1123 					   &addr6->list.mask);  in netlbl_unlabel_staticlist_gen()
1127 		secid = addr6->secid;  in netlbl_unlabel_staticlist_gen()
1133 	ret_val = nla_put(cb_arg->skb,  in netlbl_unlabel_staticlist_gen()
1141 	cb_arg->seq++;  in netlbl_unlabel_staticlist_gen()
1142 	genlmsg_end(cb_arg->skb, data);  in netlbl_unlabel_staticlist_gen()
1146 	genlmsg_cancel(cb_arg->skb, data);  in netlbl_unlabel_staticlist_gen()
1151  * netlbl_unlabel_staticlist - Handle a STATICLIST message
1165 	u32 skip_bkt = cb->args[0];  in netlbl_unlabel_staticlist()
1166 	u32 skip_chain = cb->args[1];  in netlbl_unlabel_staticlist()
1167 	u32 skip_addr4 = cb->args[2];  in netlbl_unlabel_staticlist()
1173 	u32 skip_addr6 = cb->args[3];  in netlbl_unlabel_staticlist()
1179 	cb_arg.seq = cb->nlh->nlmsg_seq;  in netlbl_unlabel_staticlist()
1183 	     iter_bkt < rcu_dereference(netlbl_unlhsh)->size;  in netlbl_unlabel_staticlist()
1185 		iter_list = &rcu_dereference(netlbl_unlhsh)->tbl[iter_bkt];  in netlbl_unlabel_staticlist()
1187 			if (!iface->valid ||  in netlbl_unlabel_staticlist()
1191 						   &iface->addr4_list) {  in netlbl_unlabel_staticlist()
1200 					iter_addr4--;  in netlbl_unlabel_staticlist()
1201 					iter_chain--;  in netlbl_unlabel_staticlist()
1209 						   &iface->addr6_list) {  in netlbl_unlabel_staticlist()
1218 					iter_addr6--;  in netlbl_unlabel_staticlist()
1219 					iter_chain--;  in netlbl_unlabel_staticlist()
1233 	cb->args[0] = iter_bkt;  in netlbl_unlabel_staticlist()
1234 	cb->args[1] = iter_chain;  in netlbl_unlabel_staticlist()
1235 	cb->args[2] = iter_addr4;  in netlbl_unlabel_staticlist()
1236 	cb->args[3] = iter_addr6;  in netlbl_unlabel_staticlist()
1237 	return skb->len;  in netlbl_unlabel_staticlist()
1241  * netlbl_unlabel_staticlistdef - Handle a STATICLISTDEF message
1247  * unlabeled connection entry in a form suitable for use in a kernel generated
1264 	cb_arg.seq = cb->nlh->nlmsg_seq;  in netlbl_unlabel_staticlistdef()
1268 	if (iface == NULL || !iface->valid)  in netlbl_unlabel_staticlistdef()
1271 	netlbl_af4list_foreach_rcu(addr4, &iface->addr4_list) {  in netlbl_unlabel_staticlistdef()
1272 		if (iter_addr4++ < cb->args[0])  in netlbl_unlabel_staticlistdef()
1279 			iter_addr4--;  in netlbl_unlabel_staticlistdef()
1284 	netlbl_af6list_foreach_rcu(addr6, &iface->addr6_list) {  in netlbl_unlabel_staticlistdef()
1285 		if (iter_addr6++ < cb->args[1])  in netlbl_unlabel_staticlistdef()
1292 			iter_addr6--;  in netlbl_unlabel_staticlistdef()
1300 	cb->args[0] = iter_addr4;  in netlbl_unlabel_staticlistdef()
1301 	cb->args[1] = iter_addr6;  in netlbl_unlabel_staticlistdef()
1302 	return skb->len;  in netlbl_unlabel_staticlistdef()
1385  * netlbl_unlabel_genl_init - Register the Unlabeled NetLabel component
1406  * netlbl_unlabel_init - Initialize the unlabeled connection hash table
1413  * non-zero values on error.
1422 		return -EINVAL;  in netlbl_unlabel_init()
1426 		return -ENOMEM;  in netlbl_unlabel_init()
1427 	hsh_tbl->size = 1 << size;  in netlbl_unlabel_init()
1428 	hsh_tbl->tbl = kcalloc(hsh_tbl->size,  in netlbl_unlabel_init()
1431 	if (hsh_tbl->tbl == NULL) {  in netlbl_unlabel_init()
1433 		return -ENOMEM;  in netlbl_unlabel_init()
1435 	for (iter = 0; iter < hsh_tbl->size; iter++)  in netlbl_unlabel_init()
1436 		INIT_LIST_HEAD(&hsh_tbl->tbl[iter]);  in netlbl_unlabel_init()
1448  * netlbl_unlabel_getattr - Get the security attributes for an unlabled packet
1465 	iface = netlbl_unlhsh_search_iface(skb->skb_iif);  in netlbl_unlabel_getattr()
1468 	if (iface == NULL || !iface->valid)  in netlbl_unlabel_getattr()
1474 	 * receiving ip_hdr(skb)->version = 4.  in netlbl_unlabel_getattr()
1476 	if (family == PF_INET6 && ip_hdr(skb)->version == 4)  in netlbl_unlabel_getattr()
1486 		addr4 = netlbl_af4list_search(hdr4->saddr,  in netlbl_unlabel_getattr()
1487 					      &iface->addr4_list);  in netlbl_unlabel_getattr()
1490 		secattr->attr.secid = netlbl_unlhsh_addr4_entry(addr4)->secid;  in netlbl_unlabel_getattr()
1499 		addr6 = netlbl_af6list_search(&hdr6->saddr,  in netlbl_unlabel_getattr()
1500 					      &iface->addr6_list);  in netlbl_unlabel_getattr()
1503 		secattr->attr.secid = netlbl_unlhsh_addr6_entry(addr6)->secid;  in netlbl_unlabel_getattr()
1512 	secattr->flags |= NETLBL_SECATTR_SECID;  in netlbl_unlabel_getattr()
1513 	secattr->type = NETLBL_NLTYPE_UNLABELED;  in netlbl_unlabel_getattr()
1519 		return -ENOMSG;  in netlbl_unlabel_getattr()
1520 	secattr->type = NETLBL_NLTYPE_UNLABELED;  in netlbl_unlabel_getattr()
1525  * netlbl_unlabel_defconf - Set the default config to allow unlabeled packets
1535 	struct netlbl_dom_map *entry;  in netlbl_unlabel_defconf()  local
1545 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);  in netlbl_unlabel_defconf()
1546 	if (entry == NULL)  in netlbl_unlabel_defconf()
1547 		return -ENOMEM;  in netlbl_unlabel_defconf()
1548 	entry->family = AF_UNSPEC;  in netlbl_unlabel_defconf()
1549 	entry->def.type = NETLBL_NLTYPE_UNLABELED;  in netlbl_unlabel_defconf()
1550 	ret_val = netlbl_domhsh_add_default(entry, &audit_info);  in netlbl_unlabel_defconf()