93 #define IPV4_DEVCONF_DFLT(net, attr) \  argument
94 	IPV4_DEVCONF((*net->ipv4.devconf_dflt), attr)
110 static u32 inet_addr_hash(const struct net *net, __be32 addr)  in inet_addr_hash()  argument
112 	u32 val = (__force u32) addr ^ net_hash_mix(net);  in inet_addr_hash()
117 static void inet_hash_insert(struct net *net, struct in_ifaddr *ifa)  in inet_hash_insert()  argument
119 	u32 hash = inet_addr_hash(net, ifa->ifa_local);  in inet_hash_insert()
139 struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref)  in __ip_dev_find()  argument
141 	u32 hash = inet_addr_hash(net, addr);  in __ip_dev_find()
150 			if (!net_eq(dev_net(dev), net))  in __ip_dev_find()
164 		local = fib_get_table(net, RT_TABLE_LOCAL);  in __ip_dev_find()
523 struct in_device *inetdev_by_index(struct net *net, int ifindex)  in inetdev_by_index()  argument
529 	dev = dev_get_by_index_rcu(net, ifindex);  in inetdev_by_index()
573 	struct net *net = sock_net(skb->sk);  in inet_rtm_deladdr()  local
587 	in_dev = inetdev_by_index(net, ifm->ifa_index);  in inet_rtm_deladdr()
608 			ip_mc_config(net->ipv4.mc_autojoin_sk, false, ifa);  in inet_rtm_deladdr()
742 static struct in_ifaddr *rtm_to_ifaddr(struct net *net, struct nlmsghdr *nlh,  in rtm_to_ifaddr()  argument
761 	dev = __dev_get_by_index(net, ifm->ifa_index);  in rtm_to_ifaddr()
845 	struct net *net = sock_net(skb->sk);  in inet_rtm_newaddr()  local
853 	ifa = rtm_to_ifaddr(net, nlh, &valid_lft, &prefered_lft);  in inet_rtm_newaddr()
864 			int ret = ip_mc_config(net->ipv4.mc_autojoin_sk,  in inet_rtm_newaddr()
915 int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)  in devinet_ioctl()  argument
943 	dev_load(net, ifr.ifr_name);  in devinet_ioctl()
961 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))  in devinet_ioctl()
969 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))  in devinet_ioctl()
983 	dev = __dev_get_by_name(net, ifr.ifr_name);  in devinet_ioctl()
1197 	struct net *net = dev_net(dev);  in inet_select_addr()  local
1223 	for_each_netdev_rcu(net, dev) {  in inet_select_addr()
1287 __be32 inet_confirm_addr(struct net *net, struct in_device *in_dev,  in inet_confirm_addr()  argument
1297 	for_each_netdev_rcu(net, dev) {  in inet_confirm_addr()
1566 	struct net *net = sock_net(skb->sk);  in inet_dump_ifaddr()  local
1581 		head = &net->dev_index_head[h];  in inet_dump_ifaddr()
1583 		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^  in inet_dump_ifaddr()
1584 			  net->dev_base_seq;  in inet_dump_ifaddr()
1627 	struct net *net;  in rtmsg_ifa()  local
1629 	net = dev_net(ifa->ifa_dev->dev);  in rtmsg_ifa()
1641 	rtnl_notify(skb, net, portid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);  in rtmsg_ifa()
1645 		rtnl_set_sk_err(net, RTNLGRP_IPV4_IFADDR, err);  in rtmsg_ifa()
1792 void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,  in inet_netconf_notify_devconf()  argument
1810 	rtnl_notify(skb, net, 0, RTNLGRP_IPV4_NETCONF, NULL, GFP_ATOMIC);  in inet_netconf_notify_devconf()
1814 		rtnl_set_sk_err(net, RTNLGRP_IPV4_NETCONF, err);  in inet_netconf_notify_devconf()
1827 	struct net *net = sock_net(in_skb->sk);  in inet_netconf_get_devconf()  local
1849 		devconf = net->ipv4.devconf_all;  in inet_netconf_get_devconf()
1852 		devconf = net->ipv4.devconf_dflt;  in inet_netconf_get_devconf()
1855 		dev = __dev_get_by_index(net, ifindex);  in inet_netconf_get_devconf()
1880 	err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);  in inet_netconf_get_devconf()
1888 	struct net *net = sock_net(skb->sk);  in inet_netconf_dump_devconf()  local
1900 		head = &net->dev_index_head[h];  in inet_netconf_dump_devconf()
1902 		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^  in inet_netconf_dump_devconf()
1903 			  net->dev_base_seq;  in inet_netconf_dump_devconf()
1929 					      net->ipv4.devconf_all,  in inet_netconf_dump_devconf()
1940 					      net->ipv4.devconf_dflt,  in inet_netconf_dump_devconf()
1958 static void devinet_copy_dflt_conf(struct net *net, int i)  in devinet_copy_dflt_conf()  argument
1963 	for_each_netdev_rcu(net, dev) {  in devinet_copy_dflt_conf()
1968 			in_dev->cnf.data[i] = net->ipv4.devconf_dflt->data[i];  in devinet_copy_dflt_conf()
1974 static void inet_forward_change(struct net *net)  in inet_forward_change()  argument
1977 	int on = IPV4_DEVCONF_ALL(net, FORWARDING);  in inet_forward_change()
1979 	IPV4_DEVCONF_ALL(net, ACCEPT_REDIRECTS) = !on;  in inet_forward_change()
1980 	IPV4_DEVCONF_DFLT(net, FORWARDING) = on;  in inet_forward_change()
1981 	inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,  in inet_forward_change()
1983 				    net->ipv4.devconf_all);  in inet_forward_change()
1984 	inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,  in inet_forward_change()
1986 				    net->ipv4.devconf_dflt);  in inet_forward_change()
1988 	for_each_netdev(net, dev) {  in inet_forward_change()
1996 			inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,  in inet_forward_change()
2003 static int devinet_conf_ifindex(struct net *net, struct ipv4_devconf *cnf)  in devinet_conf_ifindex()  argument
2005 	if (cnf == net->ipv4.devconf_dflt)  in devinet_conf_ifindex()
2007 	else if (cnf == net->ipv4.devconf_all)  in devinet_conf_ifindex()
2026 		struct net *net = ctl->extra2;  in devinet_conf_proc()  local
2032 		if (cnf == net->ipv4.devconf_dflt)  in devinet_conf_proc()
2033 			devinet_copy_dflt_conf(net, i);  in devinet_conf_proc()
2037 				rt_cache_flush(net);  in devinet_conf_proc()
2041 			ifindex = devinet_conf_ifindex(net, cnf);  in devinet_conf_proc()
2042 			inet_netconf_notify_devconf(net, NETCONFA_RP_FILTER,  in devinet_conf_proc()
2047 			ifindex = devinet_conf_ifindex(net, cnf);  in devinet_conf_proc()
2048 			inet_netconf_notify_devconf(net, NETCONFA_PROXY_NEIGH,  in devinet_conf_proc()
2066 		struct net *net = ctl->extra2;  in devinet_sysctl_forward()  local
2068 		if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {  in devinet_sysctl_forward()
2075 			if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {  in devinet_sysctl_forward()
2076 				inet_forward_change(net);  in devinet_sysctl_forward()
2083 				inet_netconf_notify_devconf(net,  in devinet_sysctl_forward()
2089 			rt_cache_flush(net);  in devinet_sysctl_forward()
2091 			inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,  in devinet_sysctl_forward()
2093 						    net->ipv4.devconf_dflt);  in devinet_sysctl_forward()
2106 	struct net *net = ctl->extra2;  in ipv4_doint_and_flush()  local
2109 		rt_cache_flush(net);  in ipv4_doint_and_flush()
2182 static int __devinet_sysctl_register(struct net *net, char *dev_name,  in __devinet_sysctl_register()  argument
2196 		t->devinet_vars[i].extra2 = net;  in __devinet_sysctl_register()
2201 	t->sysctl_header = register_net_sysctl(net, path, t->devinet_vars);  in __devinet_sysctl_register()
2264 static __net_init int devinet_init_net(struct net *net)  in devinet_init_net()  argument
2277 	if (!net_eq(net, &init_net)) {  in devinet_init_net()
2293 		tbl[0].extra2 = net;  in devinet_init_net()
2298 	err = __devinet_sysctl_register(net, "all", all);  in devinet_init_net()
2302 	err = __devinet_sysctl_register(net, "default", dflt);  in devinet_init_net()
2307 	forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);  in devinet_init_net()
2310 	net->ipv4.forw_hdr = forw_hdr;  in devinet_init_net()
2313 	net->ipv4.devconf_all = all;  in devinet_init_net()
2314 	net->ipv4.devconf_dflt = dflt;  in devinet_init_net()
2336 static __net_exit void devinet_exit_net(struct net *net)  in devinet_exit_net()  argument
2341 	tbl = net->ipv4.forw_hdr->ctl_table_arg;  in devinet_exit_net()
2342 	unregister_net_sysctl_table(net->ipv4.forw_hdr);  in devinet_exit_net()
2343 	__devinet_sysctl_unregister(net->ipv4.devconf_dflt);  in devinet_exit_net()
2344 	__devinet_sysctl_unregister(net->ipv4.devconf_all);  in devinet_exit_net()
2347 	kfree(net->ipv4.devconf_dflt);  in devinet_exit_net()
2348 	kfree(net->ipv4.devconf_all);  in devinet_exit_net()