15 #include <net/dst.h>
16 #include <net/xfrm.h>
17 #include <net/ip.h>
18 #include <net/l3mdev.h>
20 static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,  in __xfrm4_dst_lookup()  argument
31 	fl4->flowi4_l3mdev = l3mdev_master_ifindex_by_index(net, oif);  in __xfrm4_dst_lookup()
36 	rt = __ip_route_output_key(net, fl4);  in __xfrm4_dst_lookup()
43 static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos, int oif,  in xfrm4_dst_lookup()  argument
50 	return __xfrm4_dst_lookup(net, &fl4, tos, oif, saddr, daddr, mark);  in xfrm4_dst_lookup()
53 static int xfrm4_get_saddr(struct net *net, int oif,  in xfrm4_get_saddr()  argument
60 	dst = __xfrm4_dst_lookup(net, &fl4, 0, oif, NULL, daddr, mark);  in xfrm4_get_saddr()
158 static __net_init int xfrm4_net_sysctl_init(struct net *net)  in xfrm4_net_sysctl_init()  argument
164 	if (!net_eq(net, &init_net)) {  in xfrm4_net_sysctl_init()
169 		table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;  in xfrm4_net_sysctl_init()
172 	hdr = register_net_sysctl_sz(net, "net/ipv4", table,  in xfrm4_net_sysctl_init()
177 	net->ipv4.xfrm4_hdr = hdr;  in xfrm4_net_sysctl_init()
181 	if (!net_eq(net, &init_net))  in xfrm4_net_sysctl_init()
187 static __net_exit void xfrm4_net_sysctl_exit(struct net *net)  in xfrm4_net_sysctl_exit()  argument
191 	if (!net->ipv4.xfrm4_hdr)  in xfrm4_net_sysctl_exit()
194 	table = net->ipv4.xfrm4_hdr->ctl_table_arg;  in xfrm4_net_sysctl_exit()
195 	unregister_net_sysctl_table(net->ipv4.xfrm4_hdr);  in xfrm4_net_sysctl_exit()
196 	if (!net_eq(net, &init_net))  in xfrm4_net_sysctl_exit()
200 static inline int xfrm4_net_sysctl_init(struct net *net)  in xfrm4_net_sysctl_init()  argument
205 static inline void xfrm4_net_sysctl_exit(struct net *net)  in xfrm4_net_sysctl_exit()  argument
210 static int __net_init xfrm4_net_init(struct net *net)  in xfrm4_net_init()  argument
214 	memcpy(&net->xfrm.xfrm4_dst_ops, &xfrm4_dst_ops_template,  in xfrm4_net_init()
216 	ret = dst_entries_init(&net->xfrm.xfrm4_dst_ops);  in xfrm4_net_init()
220 	ret = xfrm4_net_sysctl_init(net);  in xfrm4_net_init()
222 		dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);  in xfrm4_net_init()
227 static void __net_exit xfrm4_net_exit(struct net *net)  in xfrm4_net_exit()  argument
229 	xfrm4_net_sysctl_exit(net);  in xfrm4_net_exit()
230 	dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);  in xfrm4_net_exit()