51 static int __net_init fib4_rules_init(struct net *net)  in fib4_rules_init()  argument
64 				&net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX]);  in fib4_rules_init()
66 				&net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]);  in fib4_rules_init()
75 struct fib_table *fib_new_table(struct net *net, u32 id)  in fib_new_table()  argument
82 	tb = fib_get_table(net, id);  in fib_new_table()
87 		alias = fib_new_table(net, RT_TABLE_MAIN);  in fib_new_table()
95 		rcu_assign_pointer(net->ipv4.fib_local, tb);  in fib_new_table()
98 		rcu_assign_pointer(net->ipv4.fib_main, tb);  in fib_new_table()
101 		rcu_assign_pointer(net->ipv4.fib_default, tb);  in fib_new_table()
108 	hlist_add_head_rcu(&tb->tb_hlist, &net->ipv4.fib_table_hash[h]);  in fib_new_table()
113 struct fib_table *fib_get_table(struct net *net, u32 id)  in fib_get_table()  argument
123 	head = &net->ipv4.fib_table_hash[h];  in fib_get_table()
132 static void fib_replace_table(struct net *net, struct fib_table *old,  in fib_replace_table()  argument
138 		rcu_assign_pointer(net->ipv4.fib_local, new);  in fib_replace_table()
141 		rcu_assign_pointer(net->ipv4.fib_main, new);  in fib_replace_table()
144 		rcu_assign_pointer(net->ipv4.fib_default, new);  in fib_replace_table()
155 int fib_unmerge(struct net *net)  in fib_unmerge()  argument
160 	old = fib_get_table(net, RT_TABLE_LOCAL);  in fib_unmerge()
170 		fib_replace_table(net, old, new);  in fib_unmerge()
177 static void fib_flush(struct net *net)  in fib_flush()  argument
183 		struct hlist_head *head = &net->ipv4.fib_table_hash[h];  in fib_flush()
192 		rt_cache_flush(net);  in fib_flush()
195 void fib_flush_external(struct net *net)  in fib_flush_external()  argument
202 		head = &net->ipv4.fib_table_hash[h];  in fib_flush_external()
212 static inline unsigned int __inet_dev_addr_type(struct net *net,  in __inet_dev_addr_type()  argument
228 	local_table = fib_get_table(net, RT_TABLE_LOCAL);  in __inet_dev_addr_type()
241 unsigned int inet_addr_type(struct net *net, __be32 addr)  in inet_addr_type()  argument
243 	return __inet_dev_addr_type(net, NULL, addr);  in inet_addr_type()
247 unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,  in inet_dev_addr_type()  argument
250 	return __inet_dev_addr_type(net, dev, addr);  in inet_dev_addr_type()
261 	struct net *net;  in fib_compute_spec_dst()  local
272 	net = dev_net(dev);  in fib_compute_spec_dst()
283 		if (!fib_lookup(net, &fl4, &res))  in fib_compute_spec_dst()
284 			return FIB_RES_PREFSRC(net, res);  in fib_compute_spec_dst()
307 	struct net *net;  in __fib_validate_source()  local
321 	net = dev_net(dev);  in __fib_validate_source()
322 	if (fib_lookup(net, &fl4, &res))  in __fib_validate_source()
357 	if (fib_lookup(net, &fl4, &res) == 0) {  in __fib_validate_source()
408 static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,  in rtentry_to_fib_config()  argument
415 	cfg->fc_nlinfo.nl_net = net;  in rtentry_to_fib_config()
476 		dev = __dev_get_by_name(net, devname);  in rtentry_to_fib_config()
499 		    inet_addr_type(net, addr) == RTN_UNICAST)  in rtentry_to_fib_config()
540 int ip_rt_ioctl(struct net *net, unsigned int cmd, void __user *arg)  in ip_rt_ioctl()  argument
549 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))  in ip_rt_ioctl()
556 		err = rtentry_to_fib_config(net, cmd, &rt, &cfg);  in ip_rt_ioctl()
561 				tb = fib_get_table(net, cfg.fc_table);  in ip_rt_ioctl()
567 				tb = fib_new_table(net, cfg.fc_table);  in ip_rt_ioctl()
596 static int rtm_to_fib_config(struct net *net, struct sk_buff *skb,  in rtm_to_fib_config()  argument
621 	cfg->fc_nlinfo.nl_net = net;  in rtm_to_fib_config()
669 	struct net *net = sock_net(skb->sk);  in inet_rtm_delroute()  local
674 	err = rtm_to_fib_config(net, skb, nlh, &cfg);  in inet_rtm_delroute()
678 	tb = fib_get_table(net, cfg.fc_table);  in inet_rtm_delroute()
691 	struct net *net = sock_net(skb->sk);  in inet_rtm_newroute()  local
696 	err = rtm_to_fib_config(net, skb, nlh, &cfg);  in inet_rtm_newroute()
700 	tb = fib_new_table(net, cfg.fc_table);  in inet_rtm_newroute()
713 	struct net *net = sock_net(skb->sk);  in inet_dump_fib()  local
731 		head = &net->ipv4.fib_table_hash[h];  in inet_dump_fib()
762 	struct net *net = dev_net(ifa->ifa_dev->dev);  in fib_magic()  local
773 			.nl_net = net,  in fib_magic()
778 		tb = fib_new_table(net, RT_TABLE_MAIN);  in fib_magic()
780 		tb = fib_new_table(net, RT_TABLE_LOCAL);  in fib_magic()
984 static void nl_fib_lookup(struct net *net, struct fib_result_nl *frn)  in nl_fib_lookup()  argument
998 	tb = fib_get_table(net, frn->tb_id_in);  in nl_fib_lookup()
1021 	struct net *net;  in nl_fib_input()  local
1026 	net = sock_net(skb->sk);  in nl_fib_input()
1038 	nl_fib_lookup(net, frn);  in nl_fib_input()
1043 	netlink_unicast(net->ipv4.fibnl, skb, portid, MSG_DONTWAIT);  in nl_fib_input()
1046 static int __net_init nl_fib_lookup_init(struct net *net)  in nl_fib_lookup_init()  argument
1053 	sk = netlink_kernel_create(net, NETLINK_FIB_LOOKUP, &cfg);  in nl_fib_lookup_init()
1056 	net->ipv4.fibnl = sk;  in nl_fib_lookup_init()
1060 static void nl_fib_lookup_exit(struct net *net)  in nl_fib_lookup_exit()  argument
1062 	netlink_kernel_release(net->ipv4.fibnl);  in nl_fib_lookup_exit()
1063 	net->ipv4.fibnl = NULL;  in nl_fib_lookup_exit()
1078 	struct net *net = dev_net(dev);  in fib_inetaddr_event()  local
1086 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_inetaddr_event()
1091 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_inetaddr_event()
1109 	struct net *net = dev_net(dev);  in fib_netdev_event()  local
1129 		atomic_inc(&net->ipv4.dev_addr_genid);  in fib_netdev_event()
1130 		rt_cache_flush(net);  in fib_netdev_event()
1137 		rt_cache_flush(net);  in fib_netdev_event()
1151 static int __net_init ip_fib_net_init(struct net *net)  in ip_fib_net_init()  argument
1159 	net->ipv4.fib_table_hash = kzalloc(size, GFP_KERNEL);  in ip_fib_net_init()
1160 	if (!net->ipv4.fib_table_hash)  in ip_fib_net_init()
1163 	err = fib4_rules_init(net);  in ip_fib_net_init()
1169 	kfree(net->ipv4.fib_table_hash);  in ip_fib_net_init()
1173 static void ip_fib_net_exit(struct net *net)  in ip_fib_net_exit()  argument
1179 	RCU_INIT_POINTER(net->ipv4.fib_local, NULL);  in ip_fib_net_exit()
1180 	RCU_INIT_POINTER(net->ipv4.fib_main, NULL);  in ip_fib_net_exit()
1181 	RCU_INIT_POINTER(net->ipv4.fib_default, NULL);  in ip_fib_net_exit()
1184 		struct hlist_head *head = &net->ipv4.fib_table_hash[i];  in ip_fib_net_exit()
1196 	fib4_rules_exit(net);  in ip_fib_net_exit()
1199 	kfree(net->ipv4.fib_table_hash);  in ip_fib_net_exit()
1202 static int __net_init fib_net_init(struct net *net)  in fib_net_init()  argument
1207 	net->ipv4.fib_num_tclassid_users = 0;  in fib_net_init()
1209 	error = ip_fib_net_init(net);  in fib_net_init()
1212 	error = nl_fib_lookup_init(net);  in fib_net_init()
1215 	error = fib_proc_init(net);  in fib_net_init()
1222 	nl_fib_lookup_exit(net);  in fib_net_init()
1224 	ip_fib_net_exit(net);  in fib_net_init()
1228 static void __net_exit fib_net_exit(struct net *net)  in fib_net_exit()  argument
1230 	fib_proc_exit(net);  in fib_net_exit()
1231 	nl_fib_lookup_exit(net);  in fib_net_exit()
1232 	ip_fib_net_exit(net);  in fib_net_exit()