1 // SPDX-License-Identifier: GPL-2.0-or-later
10  * Author: Paul Moore <paul@paul-moore.com>
14  * (c) Copyright Hewlett-Packard Development Company, L.P., 2008
36  * netlbl_af4list_search - Search for a matching IPv4 address entry
52 		if (iter->valid && (addr & iter->mask) == iter->addr)  in netlbl_af4list_search()
59  * netlbl_af4list_search_exact - Search for an exact IPv4 address entry
61  * @mask: IPv4 address mask
71 						   __be32 mask,  in netlbl_af4list_search_exact()  argument
77 		if (iter->valid && iter->addr == addr && iter->mask == mask)  in netlbl_af4list_search_exact()
86  * netlbl_af6list_search - Search for a matching IPv6 address entry
102 		if (iter->valid &&  in netlbl_af6list_search()
103 		    ipv6_masked_addr_cmp(&iter->addr, &iter->mask, addr) == 0)  in netlbl_af6list_search()
110  * netlbl_af6list_search_exact - Search for an exact IPv6 address entry
112  * @mask: IPv6 address mask
122 						   const struct in6_addr *mask,  in netlbl_af6list_search_exact()  argument
128 		if (iter->valid &&  in netlbl_af6list_search_exact()
129 		    ipv6_addr_equal(&iter->addr, addr) &&  in netlbl_af6list_search_exact()
130 		    ipv6_addr_equal(&iter->mask, mask))  in netlbl_af6list_search_exact()
138  * netlbl_af4list_add - Add a new IPv4 address entry to a list
152 	iter = netlbl_af4list_search(entry->addr, head);  in netlbl_af4list_add()
154 	    iter->addr == entry->addr && iter->mask == entry->mask)  in netlbl_af4list_add()
155 		return -EEXIST;  in netlbl_af4list_add()
159 	 * address mask such that the entry with the widest mask (smallest  in netlbl_af4list_add()
162 		if (iter->valid &&  in netlbl_af4list_add()
163 		    ntohl(entry->mask) > ntohl(iter->mask)) {  in netlbl_af4list_add()
164 			__list_add_rcu(&entry->list,  in netlbl_af4list_add()
165 				       iter->list.prev,  in netlbl_af4list_add()
166 				       &iter->list);  in netlbl_af4list_add()
169 	list_add_tail_rcu(&entry->list, head);  in netlbl_af4list_add()
175  * netlbl_af6list_add - Add a new IPv6 address entry to a list
189 	iter = netlbl_af6list_search(&entry->addr, head);  in netlbl_af6list_add()
191 	    ipv6_addr_equal(&iter->addr, &entry->addr) &&  in netlbl_af6list_add()
192 	    ipv6_addr_equal(&iter->mask, &entry->mask))  in netlbl_af6list_add()
193 		return -EEXIST;  in netlbl_af6list_add()
197 	 * address mask such that the entry with the widest mask (smallest  in netlbl_af6list_add()
200 		if (iter->valid &&  in netlbl_af6list_add()
201 		    ipv6_addr_cmp(&entry->mask, &iter->mask) > 0) {  in netlbl_af6list_add()
202 			__list_add_rcu(&entry->list,  in netlbl_af6list_add()
203 				       iter->list.prev,  in netlbl_af6list_add()
204 				       &iter->list);  in netlbl_af6list_add()
207 	list_add_tail_rcu(&entry->list, head);  in netlbl_af6list_add()
213  * netlbl_af4list_remove_entry - Remove an IPv4 address entry
223 	entry->valid = 0;  in netlbl_af4list_remove_entry()
224 	list_del_rcu(&entry->list);  in netlbl_af4list_remove_entry()
228  * netlbl_af4list_remove - Remove an IPv4 address entry
230  * @mask: IP address mask
239 struct netlbl_af4list *netlbl_af4list_remove(__be32 addr, __be32 mask,  in netlbl_af4list_remove()  argument
244 	entry = netlbl_af4list_search_exact(addr, mask, head);  in netlbl_af4list_remove()
253  * netlbl_af6list_remove_entry - Remove an IPv6 address entry
263 	entry->valid = 0;  in netlbl_af6list_remove_entry()
264 	list_del_rcu(&entry->list);  in netlbl_af6list_remove_entry()
268  * netlbl_af6list_remove - Remove an IPv6 address entry
270  * @mask: IP address mask
280 					     const struct in6_addr *mask,  in netlbl_af6list_remove()  argument
285 	entry = netlbl_af6list_search_exact(addr, mask, head);  in netlbl_af6list_remove()
299  * netlbl_af4list_audit_addr - Audit an IPv4 address
304  * @mask: IP address mask
307  * Write the IPv4 address and address mask, if necessary, to @audit_buf.
312 					__be32 addr, __be32 mask)  in netlbl_af4list_audit_addr()  argument
314 	u32 mask_val = ntohl(mask);  in netlbl_af4list_audit_addr()
332  * netlbl_af6list_audit_addr - Audit an IPv6 address
337  * @mask: IP address mask
340  * Write the IPv6 address and address mask, if necessary, to @audit_buf.
347 				 const struct in6_addr *mask)  in netlbl_af6list_audit_addr()  argument
354 	if (ntohl(mask->s6_addr32[3]) != 0xffffffff) {  in netlbl_af6list_audit_addr()
357 		int iter = -1;  in netlbl_af6list_audit_addr()
358 		while (ntohl(mask->s6_addr32[++iter]) == 0xffffffff)  in netlbl_af6list_audit_addr()
360 		mask_val = ntohl(mask->s6_addr32[iter]);  in netlbl_af6list_audit_addr()