53 static int __net_init fib4_rules_init(struct net *net)  in fib4_rules_init()  argument
66 				&net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX]);  in fib4_rules_init()
68 				&net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]);  in fib4_rules_init()
77 struct fib_table *fib_new_table(struct net *net, u32 id)  in fib_new_table()  argument
84 	tb = fib_get_table(net, id);  in fib_new_table()
89 		alias = fib_new_table(net, RT_TABLE_MAIN);  in fib_new_table()
97 		rcu_assign_pointer(net->ipv4.fib_local, tb);  in fib_new_table()
100 		rcu_assign_pointer(net->ipv4.fib_main, tb);  in fib_new_table()
103 		rcu_assign_pointer(net->ipv4.fib_default, tb);  in fib_new_table()
110 	hlist_add_head_rcu(&tb->tb_hlist, &net->ipv4.fib_table_hash[h]);  in fib_new_table()
115 struct fib_table *fib_get_table(struct net *net, u32 id)  in fib_get_table()  argument
125 	head = &net->ipv4.fib_table_hash[h];  in fib_get_table()
134 static void fib_replace_table(struct net *net, struct fib_table *old,  in fib_replace_table()  argument
140 		rcu_assign_pointer(net->ipv4.fib_local, new);  in fib_replace_table()
143 		rcu_assign_pointer(net->ipv4.fib_main, new);  in fib_replace_table()
146 		rcu_assign_pointer(net->ipv4.fib_default, new);  in fib_replace_table()
157 int fib_unmerge(struct net *net)  in fib_unmerge()  argument
162 	old = fib_get_table(net, RT_TABLE_LOCAL);  in fib_unmerge()
172 		fib_replace_table(net, old, new);  in fib_unmerge()
179 static void fib_flush(struct net *net)  in fib_flush()  argument
185 		struct hlist_head *head = &net->ipv4.fib_table_hash[h];  in fib_flush()
194 		rt_cache_flush(net);  in fib_flush()
197 void fib_flush_external(struct net *net)  in fib_flush_external()  argument
204 		head = &net->ipv4.fib_table_hash[h];  in fib_flush_external()
214 static inline unsigned int __inet_dev_addr_type(struct net *net,  in __inet_dev_addr_type()  argument
230 	table = fib_get_table(net, tb_id);  in __inet_dev_addr_type()
243 unsigned int inet_addr_type_table(struct net *net, __be32 addr, u32 tb_id)  in inet_addr_type_table()  argument
245 	return __inet_dev_addr_type(net, NULL, addr, tb_id);  in inet_addr_type_table()
249 unsigned int inet_addr_type(struct net *net, __be32 addr)  in inet_addr_type()  argument
251 	return __inet_dev_addr_type(net, NULL, addr, RT_TABLE_LOCAL);  in inet_addr_type()
255 unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,  in inet_dev_addr_type()  argument
260 	return __inet_dev_addr_type(net, dev, addr, rt_table);  in inet_dev_addr_type()
267 unsigned int inet_addr_type_dev_table(struct net *net,  in inet_addr_type_dev_table()  argument
273 	return __inet_dev_addr_type(net, NULL, addr, rt_table);  in inet_addr_type_dev_table()
283 	struct net *net;  in fib_compute_spec_dst()  local
294 	net = dev_net(dev);  in fib_compute_spec_dst()
305 		if (!fib_lookup(net, &fl4, &res, 0))  in fib_compute_spec_dst()
306 			return FIB_RES_PREFSRC(net, res);  in fib_compute_spec_dst()
329 	struct net *net;  in __fib_validate_source()  local
349 	net = dev_net(dev);  in __fib_validate_source()
350 	if (fib_lookup(net, &fl4, &res, 0))  in __fib_validate_source()
388 	if (fib_lookup(net, &fl4, &res, FIB_LOOKUP_IGNORE_LINKSTATE) == 0) {  in __fib_validate_source()
439 static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,  in rtentry_to_fib_config()  argument
446 	cfg->fc_nlinfo.nl_net = net;  in rtentry_to_fib_config()
507 		dev = __dev_get_by_name(net, devname);  in rtentry_to_fib_config()
531 		addr_type = inet_addr_type_table(net, addr, cfg->fc_table);  in rtentry_to_fib_config()
574 int ip_rt_ioctl(struct net *net, unsigned int cmd, void __user *arg)  in ip_rt_ioctl()  argument
583 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))  in ip_rt_ioctl()
590 		err = rtentry_to_fib_config(net, cmd, &rt, &cfg);  in ip_rt_ioctl()
595 				tb = fib_get_table(net, cfg.fc_table);  in ip_rt_ioctl()
601 				tb = fib_new_table(net, cfg.fc_table);  in ip_rt_ioctl()
632 static int rtm_to_fib_config(struct net *net, struct sk_buff *skb,  in rtm_to_fib_config()  argument
657 	cfg->fc_nlinfo.nl_net = net;  in rtm_to_fib_config()
711 	struct net *net = sock_net(skb->sk);  in inet_rtm_delroute()  local
716 	err = rtm_to_fib_config(net, skb, nlh, &cfg);  in inet_rtm_delroute()
720 	tb = fib_get_table(net, cfg.fc_table);  in inet_rtm_delroute()
733 	struct net *net = sock_net(skb->sk);  in inet_rtm_newroute()  local
738 	err = rtm_to_fib_config(net, skb, nlh, &cfg);  in inet_rtm_newroute()
742 	tb = fib_new_table(net, cfg.fc_table);  in inet_rtm_newroute()
755 	struct net *net = sock_net(skb->sk);  in inet_dump_fib()  local
773 		head = &net->ipv4.fib_table_hash[h];  in inet_dump_fib()
804 	struct net *net = dev_net(ifa->ifa_dev->dev);  in fib_magic()  local
816 			.nl_net = net,  in fib_magic()
823 	tb = fib_new_table(net, tb_id);  in fib_magic()
1039 static void nl_fib_lookup(struct net *net, struct fib_result_nl *frn)  in nl_fib_lookup()  argument
1053 	tb = fib_get_table(net, frn->tb_id_in);  in nl_fib_lookup()
1076 	struct net *net;  in nl_fib_input()  local
1081 	net = sock_net(skb->sk);  in nl_fib_input()
1093 	nl_fib_lookup(net, frn);  in nl_fib_input()
1098 	netlink_unicast(net->ipv4.fibnl, skb, portid, MSG_DONTWAIT);  in nl_fib_input()
1101 static int __net_init nl_fib_lookup_init(struct net *net)  in nl_fib_lookup_init()  argument
1108 	sk = netlink_kernel_create(net, NETLINK_FIB_LOOKUP, &cfg);  in nl_fib_lookup_init()
1111 	net->ipv4.fibnl = sk;  in nl_fib_lookup_init()
1115 static void nl_fib_lookup_exit(struct net *net)  in nl_fib_lookup_exit()  argument
1117 	netlink_kernel_release(net->ipv4.fibnl);  in nl_fib_lookup_exit()
1118 	net->ipv4.fibnl = NULL;  in nl_fib_lookup_exit()
1134 	struct net *net = dev_net(dev);  in fib_inetaddr_event()  local
1142 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_inetaddr_event()
1147 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_inetaddr_event()
1166 	struct net *net = dev_net(dev);  in fib_netdev_event()  local
1187 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_netdev_event()
1188 		rt_cache_flush(net);  in fib_netdev_event()
1201 		rt_cache_flush(net);  in fib_netdev_event()
1223 static int __net_init ip_fib_net_init(struct net *net)  in ip_fib_net_init()  argument
1231 	net->ipv4.fib_table_hash = kzalloc(size, GFP_KERNEL);  in ip_fib_net_init()
1232 	if (!net->ipv4.fib_table_hash)  in ip_fib_net_init()
1235 	err = fib4_rules_init(net);  in ip_fib_net_init()
1241 	kfree(net->ipv4.fib_table_hash);  in ip_fib_net_init()
1245 static void ip_fib_net_exit(struct net *net)  in ip_fib_net_exit()  argument
1251 	RCU_INIT_POINTER(net->ipv4.fib_local, NULL);  in ip_fib_net_exit()
1252 	RCU_INIT_POINTER(net->ipv4.fib_main, NULL);  in ip_fib_net_exit()
1253 	RCU_INIT_POINTER(net->ipv4.fib_default, NULL);  in ip_fib_net_exit()
1256 		struct hlist_head *head = &net->ipv4.fib_table_hash[i];  in ip_fib_net_exit()
1268 	fib4_rules_exit(net);  in ip_fib_net_exit()
1271 	kfree(net->ipv4.fib_table_hash);  in ip_fib_net_exit()
1274 static int __net_init fib_net_init(struct net *net)  in fib_net_init()  argument
1279 	net->ipv4.fib_num_tclassid_users = 0;  in fib_net_init()
1281 	error = ip_fib_net_init(net);  in fib_net_init()
1284 	error = nl_fib_lookup_init(net);  in fib_net_init()
1287 	error = fib_proc_init(net);  in fib_net_init()
1294 	nl_fib_lookup_exit(net);  in fib_net_init()
1296 	ip_fib_net_exit(net);  in fib_net_init()
1300 static void __net_exit fib_net_exit(struct net *net)  in fib_net_exit()  argument
1302 	fib_proc_exit(net);  in fib_net_exit()
1303 	nl_fib_lookup_exit(net);  in fib_net_exit()
1304 	ip_fib_net_exit(net);  in fib_net_exit()