tgafb: remove a redundant non-mono test in mono imageblit
[safe/jmp/linux-2.6] / net / ipv4 / devinet.c
index 44fdf14..55d199e 100644 (file)
@@ -27,7 +27,6 @@
  *                                     if no match found.
  */
 
-#include <linux/config.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -36,7 +35,6 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
+#include <linux/if_addr.h>
 #include <linux/if_ether.h>
 #include <linux/inet.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
 #include <linux/init.h>
 #include <linux/notifier.h>
 #include <linux/inetdevice.h>
 #include <net/ip.h>
 #include <net/route.h>
 #include <net/ip_fib.h>
+#include <net/rtnetlink.h>
 
 struct ipv4_devconf ipv4_devconf = {
-       .accept_redirects = 1,
-       .send_redirects =  1,
-       .secure_redirects = 1,
-       .shared_media =   1,
+       .data = {
+               [NET_IPV4_CONF_ACCEPT_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SEND_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SECURE_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SHARED_MEDIA - 1] = 1,
+       },
 };
 
 static struct ipv4_devconf ipv4_devconf_dflt = {
-       .accept_redirects =  1,
-       .send_redirects =    1,
-       .secure_redirects =  1,
-       .shared_media =      1,
-       .accept_source_route = 1,
+       .data = {
+               [NET_IPV4_CONF_ACCEPT_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SEND_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SECURE_REDIRECTS - 1] = 1,
+               [NET_IPV4_CONF_SHARED_MEDIA - 1] = 1,
+               [NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE - 1] = 1,
+       },
+};
+
+#define IPV4_DEVCONF_DFLT(attr) IPV4_DEVCONF(ipv4_devconf_dflt, attr)
+
+static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = {
+       [IFA_LOCAL]             = { .type = NLA_U32 },
+       [IFA_ADDRESS]           = { .type = NLA_U32 },
+       [IFA_BROADCAST]         = { .type = NLA_U32 },
+       [IFA_ANYCAST]           = { .type = NLA_U32 },
+       [IFA_LABEL]             = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
 };
 
-static void rtmsg_ifa(int event, struct in_ifaddr *);
+static void rtmsg_ifa(int event, struct in_ifaddr *, struct nlmsghdr *, u32);
 
-static struct notifier_block *inetaddr_chain;
+static BLOCKING_NOTIFIER_HEAD(inetaddr_chain);
 static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                         int destroy);
 #ifdef CONFIG_SYSCTL
@@ -94,10 +107,9 @@ static void devinet_sysctl_unregister(struct ipv4_devconf *p);
 
 static struct in_ifaddr *inet_alloc_ifa(void)
 {
-       struct in_ifaddr *ifa = kmalloc(sizeof(*ifa), GFP_KERNEL);
+       struct in_ifaddr *ifa = kzalloc(sizeof(*ifa), GFP_KERNEL);
 
        if (ifa) {
-               memset(ifa, 0, sizeof(*ifa));
                INIT_RCU_HEAD(&ifa->rcu_head);
        }
 
@@ -135,16 +147,15 @@ void in_dev_finish_destroy(struct in_device *idev)
        }
 }
 
-struct in_device *inetdev_init(struct net_device *dev)
+static struct in_device *inetdev_init(struct net_device *dev)
 {
        struct in_device *in_dev;
 
        ASSERT_RTNL();
 
-       in_dev = kmalloc(sizeof(*in_dev), GFP_KERNEL);
+       in_dev = kzalloc(sizeof(*in_dev), GFP_KERNEL);
        if (!in_dev)
                goto out;
-       memset(in_dev, 0, sizeof(*in_dev));
        INIT_RCU_HEAD(&in_dev->rcu_head);
        memcpy(&in_dev->cnf, &ipv4_devconf_dflt, sizeof(in_dev->cnf));
        in_dev->cnf.sysctl = NULL;
@@ -158,9 +169,8 @@ struct in_device *inetdev_init(struct net_device *dev)
                              NET_IPV4_NEIGH, "ipv4", NULL, NULL);
 #endif
 
-       /* Account for reference dev->ip_ptr */
+       /* Account for reference dev->ip_ptr (below) */
        in_dev_hold(in_dev);
-       rcu_assign_pointer(dev->ip_ptr, in_dev);
 
 #ifdef CONFIG_SYSCTL
        devinet_sysctl_register(in_dev, &in_dev->cnf);
@@ -168,6 +178,9 @@ struct in_device *inetdev_init(struct net_device *dev)
        ip_mc_init_dev(in_dev);
        if (dev->flags & IFF_UP)
                ip_mc_up(in_dev);
+
+       /* we can receive as soon as ip_ptr is set -- do this last */
+       rcu_assign_pointer(dev->ip_ptr, in_dev);
 out:
        return in_dev;
 out_kfree:
@@ -190,8 +203,6 @@ static void inetdev_destroy(struct in_device *in_dev)
        ASSERT_RTNL();
 
        dev = in_dev->dev;
-       if (dev == &loopback_dev)
-               return;
 
        in_dev->dead = 1;
 
@@ -217,7 +228,7 @@ static void inetdev_destroy(struct in_device *in_dev)
        call_rcu(&in_dev->rcu_head, in_dev_rcu_put);
 }
 
-int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b)
+int inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b)
 {
        rcu_read_lock();
        for_primary_ifa(in_dev) {
@@ -232,8 +243,8 @@ int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b)
        return 0;
 }
 
-static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
-                        int destroy)
+static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
+                        int destroy, struct nlmsghdr *nlh, u32 pid)
 {
        struct in_ifaddr *promote = NULL;
        struct in_ifaddr *ifa, *ifa1 = *ifap;
@@ -243,7 +254,7 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 
        ASSERT_RTNL();
 
-       /* 1. Deleting primary ifaddr forces deletion all secondaries 
+       /* 1. Deleting primary ifaddr forces deletion all secondaries
         * unless alias promotion is set
         **/
 
@@ -251,7 +262,7 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                struct in_ifaddr **ifap1 = &ifa1->ifa_next;
 
                while ((ifa = *ifap1) != NULL) {
-                       if (!(ifa->ifa_flags & IFA_F_SECONDARY) && 
+                       if (!(ifa->ifa_flags & IFA_F_SECONDARY) &&
                            ifa1->ifa_scope <= ifa->ifa_scope)
                                last_prim = ifa;
 
@@ -266,8 +277,9 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                        if (!do_promote) {
                                *ifap1 = ifa->ifa_next;
 
-                               rtmsg_ifa(RTM_DELADDR, ifa);
-                               notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
+                               rtmsg_ifa(RTM_DELADDR, ifa, nlh, pid);
+                               blocking_notifier_call_chain(&inetaddr_chain,
+                                               NETDEV_DOWN, ifa);
                                inet_free_ifa(ifa);
                        } else {
                                promote = ifa;
@@ -290,8 +302,8 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
           is valid, it will try to restore deleted routes... Grr.
           So that, this order is correct.
         */
-       rtmsg_ifa(RTM_DELADDR, ifa1);
-       notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa1);
+       rtmsg_ifa(RTM_DELADDR, ifa1, nlh, pid);
+       blocking_notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa1);
 
        if (promote) {
 
@@ -302,8 +314,9 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                }
 
                promote->ifa_flags &= ~IFA_F_SECONDARY;
-               rtmsg_ifa(RTM_NEWADDR, promote);
-               notifier_call_chain(&inetaddr_chain, NETDEV_UP, promote);
+               rtmsg_ifa(RTM_NEWADDR, promote, nlh, pid);
+               blocking_notifier_call_chain(&inetaddr_chain,
+                               NETDEV_UP, promote);
                for (ifa = promote->ifa_next; ifa; ifa = ifa->ifa_next) {
                        if (ifa1->ifa_mask != ifa->ifa_mask ||
                            !inet_ifa_match(ifa1->ifa_address, ifa))
@@ -312,15 +325,18 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                }
 
        }
-       if (destroy) {
+       if (destroy)
                inet_free_ifa(ifa1);
+}
 
-               if (!in_dev->ifa_list)
-                       inetdev_destroy(in_dev);
-       }
+static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
+                        int destroy)
+{
+       __inet_del_ifa(in_dev, ifap, destroy, NULL, 0);
 }
 
-static int inet_insert_ifa(struct in_ifaddr *ifa)
+static int __inet_insert_ifa(struct in_ifaddr *ifa, struct nlmsghdr *nlh,
+                            u32 pid)
 {
        struct in_device *in_dev = ifa->ifa_dev;
        struct in_ifaddr *ifa1, **ifap, **last_primary;
@@ -365,12 +381,17 @@ static int inet_insert_ifa(struct in_ifaddr *ifa)
        /* Send message first, then call notifier.
           Notifier will trigger FIB update, so that
           listeners of netlink will know about new ifaddr */
-       rtmsg_ifa(RTM_NEWADDR, ifa);
-       notifier_call_chain(&inetaddr_chain, NETDEV_UP, ifa);
+       rtmsg_ifa(RTM_NEWADDR, ifa, nlh, pid);
+       blocking_notifier_call_chain(&inetaddr_chain, NETDEV_UP, ifa);
 
        return 0;
 }
 
+static int inet_insert_ifa(struct in_ifaddr *ifa)
+{
+       return __inet_insert_ifa(ifa, NULL, 0);
+}
+
 static int inet_set_ifa(struct net_device *dev, struct in_ifaddr *ifa)
 {
        struct in_device *in_dev = __in_dev_get_rtnl(dev);
@@ -378,12 +399,10 @@ static int inet_set_ifa(struct net_device *dev, struct in_ifaddr *ifa)
        ASSERT_RTNL();
 
        if (!in_dev) {
-               in_dev = inetdev_init(dev);
-               if (!in_dev) {
-                       inet_free_ifa(ifa);
-                       return -ENOBUFS;
-               }
+               inet_free_ifa(ifa);
+               return -ENOBUFS;
        }
+       ipv4_devconf_setall(in_dev);
        if (ifa->ifa_dev != in_dev) {
                BUG_TRAP(!ifa->ifa_dev);
                in_dev_hold(in_dev);
@@ -399,7 +418,7 @@ struct in_device *inetdev_by_index(int ifindex)
        struct net_device *dev;
        struct in_device *in_dev = NULL;
        read_lock(&dev_base_lock);
-       dev = __dev_get_by_index(ifindex);
+       dev = __dev_get_by_index(&init_net, ifindex);
        if (dev)
                in_dev = in_dev_get(dev);
        read_unlock(&dev_base_lock);
@@ -408,8 +427,8 @@ struct in_device *inetdev_by_index(int ifindex)
 
 /* Called only from RTNL semaphored context. No locks. */
 
-struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, u32 prefix,
-                                   u32 mask)
+struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
+                                   __be32 mask)
 {
        ASSERT_RTNL();
 
@@ -422,111 +441,159 @@ struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, u32 prefix,
 
 static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-       struct rtattr **rta = arg;
+       struct nlattr *tb[IFA_MAX+1];
        struct in_device *in_dev;
-       struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
+       struct ifaddrmsg *ifm;
        struct in_ifaddr *ifa, **ifap;
+       int err = -EINVAL;
 
        ASSERT_RTNL();
 
-       if ((in_dev = inetdev_by_index(ifm->ifa_index)) == NULL)
-               goto out;
+       err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv4_policy);
+       if (err < 0)
+               goto errout;
+
+       ifm = nlmsg_data(nlh);
+       in_dev = inetdev_by_index(ifm->ifa_index);
+       if (in_dev == NULL) {
+               err = -ENODEV;
+               goto errout;
+       }
+
        __in_dev_put(in_dev);
 
        for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
             ifap = &ifa->ifa_next) {
-               if ((rta[IFA_LOCAL - 1] &&
-                    memcmp(RTA_DATA(rta[IFA_LOCAL - 1]),
-                           &ifa->ifa_local, 4)) ||
-                   (rta[IFA_LABEL - 1] &&
-                    rtattr_strcmp(rta[IFA_LABEL - 1], ifa->ifa_label)) ||
-                   (rta[IFA_ADDRESS - 1] &&
-                    (ifm->ifa_prefixlen != ifa->ifa_prefixlen ||
-                     !inet_ifa_match(*(u32*)RTA_DATA(rta[IFA_ADDRESS - 1]),
-                                     ifa))))
+               if (tb[IFA_LOCAL] &&
+                   ifa->ifa_local != nla_get_be32(tb[IFA_LOCAL]))
+                       continue;
+
+               if (tb[IFA_LABEL] && nla_strcmp(tb[IFA_LABEL], ifa->ifa_label))
+                       continue;
+
+               if (tb[IFA_ADDRESS] &&
+                   (ifm->ifa_prefixlen != ifa->ifa_prefixlen ||
+                   !inet_ifa_match(nla_get_be32(tb[IFA_ADDRESS]), ifa)))
                        continue;
-               inet_del_ifa(in_dev, ifap, 1);
+
+               __inet_del_ifa(in_dev, ifap, 1, nlh, NETLINK_CB(skb).pid);
                return 0;
        }
-out:
-       return -EADDRNOTAVAIL;
+
+       err = -EADDRNOTAVAIL;
+errout:
+       return err;
 }
 
-static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static struct in_ifaddr *rtm_to_ifaddr(struct nlmsghdr *nlh)
 {
-       struct rtattr **rta = arg;
+       struct nlattr *tb[IFA_MAX+1];
+       struct in_ifaddr *ifa;
+       struct ifaddrmsg *ifm;
        struct net_device *dev;
        struct in_device *in_dev;
-       struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
-       struct in_ifaddr *ifa;
-       int rc = -EINVAL;
+       int err = -EINVAL;
 
-       ASSERT_RTNL();
+       err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv4_policy);
+       if (err < 0)
+               goto errout;
 
-       if (ifm->ifa_prefixlen > 32 || !rta[IFA_LOCAL - 1])
-               goto out;
+       ifm = nlmsg_data(nlh);
+       if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL) {
+               err = -EINVAL;
+               goto errout;
+       }
 
-       rc = -ENODEV;
-       if ((dev = __dev_get_by_index(ifm->ifa_index)) == NULL)
-               goto out;
+       dev = __dev_get_by_index(&init_net, ifm->ifa_index);
+       if (dev == NULL) {
+               err = -ENODEV;
+               goto errout;
+       }
 
-       rc = -ENOBUFS;
-       if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) {
-               in_dev = inetdev_init(dev);
-               if (!in_dev)
-                       goto out;
+       in_dev = __in_dev_get_rtnl(dev);
+       if (in_dev == NULL) {
+               err = -ENOBUFS;
+               goto errout;
        }
 
-       if ((ifa = inet_alloc_ifa()) == NULL)
-               goto out;
+       ipv4_devconf_setall(in_dev);
+
+       ifa = inet_alloc_ifa();
+       if (ifa == NULL) {
+               /*
+                * A potential indev allocation can be left alive, it stays
+                * assigned to its device and is destroy with it.
+                */
+               err = -ENOBUFS;
+               goto errout;
+       }
+
+       in_dev_hold(in_dev);
+
+       if (tb[IFA_ADDRESS] == NULL)
+               tb[IFA_ADDRESS] = tb[IFA_LOCAL];
 
-       if (!rta[IFA_ADDRESS - 1])
-               rta[IFA_ADDRESS - 1] = rta[IFA_LOCAL - 1];
-       memcpy(&ifa->ifa_local, RTA_DATA(rta[IFA_LOCAL - 1]), 4);
-       memcpy(&ifa->ifa_address, RTA_DATA(rta[IFA_ADDRESS - 1]), 4);
        ifa->ifa_prefixlen = ifm->ifa_prefixlen;
        ifa->ifa_mask = inet_make_mask(ifm->ifa_prefixlen);
-       if (rta[IFA_BROADCAST - 1])
-               memcpy(&ifa->ifa_broadcast,
-                      RTA_DATA(rta[IFA_BROADCAST - 1]), 4);
-       if (rta[IFA_ANYCAST - 1])
-               memcpy(&ifa->ifa_anycast, RTA_DATA(rta[IFA_ANYCAST - 1]), 4);
        ifa->ifa_flags = ifm->ifa_flags;
        ifa->ifa_scope = ifm->ifa_scope;
-       in_dev_hold(in_dev);
-       ifa->ifa_dev   = in_dev;
-       if (rta[IFA_LABEL - 1])
-               rtattr_strlcpy(ifa->ifa_label, rta[IFA_LABEL - 1], IFNAMSIZ);
+       ifa->ifa_dev = in_dev;
+
+       ifa->ifa_local = nla_get_be32(tb[IFA_LOCAL]);
+       ifa->ifa_address = nla_get_be32(tb[IFA_ADDRESS]);
+
+       if (tb[IFA_BROADCAST])
+               ifa->ifa_broadcast = nla_get_be32(tb[IFA_BROADCAST]);
+
+       if (tb[IFA_ANYCAST])
+               ifa->ifa_anycast = nla_get_be32(tb[IFA_ANYCAST]);
+
+       if (tb[IFA_LABEL])
+               nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ);
        else
                memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
 
-       rc = inet_insert_ifa(ifa);
-out:
-       return rc;
+       return ifa;
+
+errout:
+       return ERR_PTR(err);
+}
+
+static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+{
+       struct in_ifaddr *ifa;
+
+       ASSERT_RTNL();
+
+       ifa = rtm_to_ifaddr(nlh);
+       if (IS_ERR(ifa))
+               return PTR_ERR(ifa);
+
+       return __inet_insert_ifa(ifa, nlh, NETLINK_CB(skb).pid);
 }
 
 /*
  *     Determine a default network mask, based on the IP address.
  */
 
-static __inline__ int inet_abc_len(u32 addr)
+static __inline__ int inet_abc_len(__be32 addr)
 {
        int rc = -1;    /* Something else, probably a multicast. */
 
-       if (ZERONET(addr))
-               rc = 0;
+       if (ZERONET(addr))
+               rc = 0;
        else {
-               addr = ntohl(addr);
+               __u32 haddr = ntohl(addr);
 
-               if (IN_CLASSA(addr))
+               if (IN_CLASSA(haddr))
                        rc = 8;
-               else if (IN_CLASSB(addr))
+               else if (IN_CLASSB(haddr))
                        rc = 16;
-               else if (IN_CLASSC(addr))
+               else if (IN_CLASSC(haddr))
                        rc = 24;
        }
 
-       return rc;
+       return rc;
 }
 
 
@@ -559,10 +626,10 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
                *colon = 0;
 
 #ifdef CONFIG_KMOD
-       dev_load(ifr.ifr_name);
+       dev_load(&init_net, ifr.ifr_name);
 #endif
 
-       switch(cmd) {
+       switch (cmd) {
        case SIOCGIFADDR:       /* Get interface address */
        case SIOCGIFBRDADDR:    /* Get the broadcast address */
        case SIOCGIFDSTADDR:    /* Get the destination address */
@@ -600,7 +667,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
        rtnl_lock();
 
        ret = -ENODEV;
-       if ((dev = __dev_get_by_name(ifr.ifr_name)) == NULL)
+       if ((dev = __dev_get_by_name(&init_net, ifr.ifr_name)) == NULL)
                goto done;
 
        if (colon)
@@ -637,7 +704,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
        if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS)
                goto done;
 
-       switch(cmd) {
+       switch (cmd) {
        case SIOCGIFADDR:       /* Get interface address */
                sin->sin_addr.s_addr = ifa->ifa_local;
                goto rarok;
@@ -737,7 +804,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
                        break;
                ret = 0;
                if (ifa->ifa_mask != sin->sin_addr.s_addr) {
-                       u32 old_mask = ifa->ifa_mask;
+                       __be32 old_mask = ifa->ifa_mask;
                        inet_del_ifa(in_dev, ifap, 0);
                        ifa->ifa_mask = sin->sin_addr.s_addr;
                        ifa->ifa_prefixlen = inet_mask_len(ifa->ifa_mask);
@@ -808,9 +875,9 @@ out:
        return done;
 }
 
-u32 inet_select_addr(const struct net_device *dev, u32 dst, int scope)
+__be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope)
 {
-       u32 addr = 0;
+       __be32 addr = 0;
        struct in_device *in_dev;
 
        rcu_read_lock();
@@ -840,7 +907,7 @@ no_in_dev:
         */
        read_lock(&dev_base_lock);
        rcu_read_lock();
-       for (dev = dev_base; dev; dev = dev->next) {
+       for_each_netdev(&init_net, dev) {
                if ((in_dev = __in_dev_get_rcu(dev)) == NULL)
                        continue;
 
@@ -859,11 +926,11 @@ out:
        return addr;
 }
 
-static u32 confirm_addr_indev(struct in_device *in_dev, u32 dst,
-                             u32 local, int scope)
+static __be32 confirm_addr_indev(struct in_device *in_dev, __be32 dst,
+                             __be32 local, int scope)
 {
        int same = 0;
-       u32 addr = 0;
+       __be32 addr = 0;
 
        for_ifa(in_dev) {
                if (!addr &&
@@ -903,9 +970,9 @@ static u32 confirm_addr_indev(struct in_device *in_dev, u32 dst,
  * - local: address, 0=autoselect the local address
  * - scope: maximum allowed scope value for the local address
  */
-u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scope)
+__be32 inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local, int scope)
 {
-       u32 addr = 0;
+       __be32 addr = 0;
        struct in_device *in_dev;
 
        if (dev) {
@@ -919,7 +986,7 @@ u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scop
 
        read_lock(&dev_base_lock);
        rcu_read_lock();
-       for (dev = dev_base; dev; dev = dev->next) {
+       for_each_netdev(&init_net, dev) {
                if ((in_dev = __in_dev_get_rcu(dev))) {
                        addr = confirm_addr_indev(in_dev, dst, local, scope);
                        if (addr)
@@ -938,41 +1005,41 @@ u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scop
 
 int register_inetaddr_notifier(struct notifier_block *nb)
 {
-       return notifier_chain_register(&inetaddr_chain, nb);
+       return blocking_notifier_chain_register(&inetaddr_chain, nb);
 }
 
 int unregister_inetaddr_notifier(struct notifier_block *nb)
 {
-       return notifier_chain_unregister(&inetaddr_chain, nb);
+       return blocking_notifier_chain_unregister(&inetaddr_chain, nb);
 }
 
 /* Rename ifa_labels for a device name change. Make some effort to preserve existing
  * alias numbering and to create unique labels if possible.
 */
 static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
-{ 
+{
        struct in_ifaddr *ifa;
        int named = 0;
 
-       for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { 
-               char old[IFNAMSIZ], *dot; 
+       for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
+               char old[IFNAMSIZ], *dot;
 
                memcpy(old, ifa->ifa_label, IFNAMSIZ);
-               memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); 
+               memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
                if (named++ == 0)
                        continue;
                dot = strchr(ifa->ifa_label, ':');
-               if (dot == NULL) { 
-                       sprintf(old, ":%d", named); 
+               if (dot == NULL) {
+                       sprintf(old, ":%d", named);
                        dot = old;
                }
-               if (strlen(dot) + strlen(dev->name) < IFNAMSIZ) { 
-                       strcat(ifa->ifa_label, dot); 
-               } else { 
-                       strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot); 
-               } 
-       }       
-} 
+               if (strlen(dot) + strlen(dev->name) < IFNAMSIZ) {
+                       strcat(ifa->ifa_label, dot);
+               } else {
+                       strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot);
+               }
+       }
+}
 
 /* Called only under RTNL semaphore */
 
@@ -982,15 +1049,20 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
        struct net_device *dev = ptr;
        struct in_device *in_dev = __in_dev_get_rtnl(dev);
 
+       if (dev->nd_net != &init_net)
+               return NOTIFY_DONE;
+
        ASSERT_RTNL();
 
        if (!in_dev) {
-               if (event == NETDEV_REGISTER && dev == &loopback_dev) {
+               if (event == NETDEV_REGISTER) {
                        in_dev = inetdev_init(dev);
                        if (!in_dev)
-                               panic("devinet: Failed to create loopback\n");
-                       in_dev->cnf.no_xfrm = 1;
-                       in_dev->cnf.no_policy = 1;
+                               return notifier_from_errno(-ENOMEM);
+                       if (dev->flags & IFF_LOOPBACK) {
+                               IN_DEV_CONF_SET(in_dev, NOXFRM, 1);
+                               IN_DEV_CONF_SET(in_dev, NOPOLICY, 1);
+                       }
                }
                goto out;
        }
@@ -1003,7 +1075,7 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
        case NETDEV_UP:
                if (dev->mtu < 68)
                        break;
-               if (dev == &loopback_dev) {
+               if (dev->flags & IFF_LOOPBACK) {
                        struct in_ifaddr *ifa;
                        if ((ifa = inet_alloc_ifa()) != NULL) {
                                ifa->ifa_local =
@@ -1052,37 +1124,53 @@ static struct notifier_block ip_netdev_notifier = {
        .notifier_call =inetdev_event,
 };
 
+static inline size_t inet_nlmsg_size(void)
+{
+       return NLMSG_ALIGN(sizeof(struct ifaddrmsg))
+              + nla_total_size(4) /* IFA_ADDRESS */
+              + nla_total_size(4) /* IFA_LOCAL */
+              + nla_total_size(4) /* IFA_BROADCAST */
+              + nla_total_size(4) /* IFA_ANYCAST */
+              + nla_total_size(IFNAMSIZ); /* IFA_LABEL */
+}
+
 static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
                            u32 pid, u32 seq, int event, unsigned int flags)
 {
        struct ifaddrmsg *ifm;
        struct nlmsghdr  *nlh;
-       unsigned char    *b = skb->tail;
 
-       nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
-       ifm = NLMSG_DATA(nlh);
+       nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags);
+       if (nlh == NULL)
+               return -EMSGSIZE;
+
+       ifm = nlmsg_data(nlh);
        ifm->ifa_family = AF_INET;
        ifm->ifa_prefixlen = ifa->ifa_prefixlen;
        ifm->ifa_flags = ifa->ifa_flags|IFA_F_PERMANENT;
        ifm->ifa_scope = ifa->ifa_scope;
        ifm->ifa_index = ifa->ifa_dev->dev->ifindex;
+
        if (ifa->ifa_address)
-               RTA_PUT(skb, IFA_ADDRESS, 4, &ifa->ifa_address);
+               NLA_PUT_BE32(skb, IFA_ADDRESS, ifa->ifa_address);
+
        if (ifa->ifa_local)
-               RTA_PUT(skb, IFA_LOCAL, 4, &ifa->ifa_local);
+               NLA_PUT_BE32(skb, IFA_LOCAL, ifa->ifa_local);
+
        if (ifa->ifa_broadcast)
-               RTA_PUT(skb, IFA_BROADCAST, 4, &ifa->ifa_broadcast);
+               NLA_PUT_BE32(skb, IFA_BROADCAST, ifa->ifa_broadcast);
+
        if (ifa->ifa_anycast)
-               RTA_PUT(skb, IFA_ANYCAST, 4, &ifa->ifa_anycast);
+               NLA_PUT_BE32(skb, IFA_ANYCAST, ifa->ifa_anycast);
+
        if (ifa->ifa_label[0])
-               RTA_PUT(skb, IFA_LABEL, IFNAMSIZ, &ifa->ifa_label);
-       nlh->nlmsg_len = skb->tail - b;
-       return skb->len;
+               NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
 
-nlmsg_failure:
-rtattr_failure:
-       skb_trim(skb, b - skb->data);
-       return -1;
+       return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+       nlmsg_cancel(skb, nlh);
+       return -EMSGSIZE;
 }
 
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
@@ -1094,17 +1182,14 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
        int s_ip_idx, s_idx = cb->args[0];
 
        s_ip_idx = ip_idx = cb->args[1];
-       read_lock(&dev_base_lock);
-       for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
+       idx = 0;
+       for_each_netdev(&init_net, dev) {
                if (idx < s_idx)
-                       continue;
+                       goto cont;
                if (idx > s_idx)
                        s_ip_idx = 0;
-               rcu_read_lock();
-               if ((in_dev = __in_dev_get_rcu(dev)) == NULL) {
-                       rcu_read_unlock();
-                       continue;
-               }
+               if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
+                       goto cont;
 
                for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
                     ifa = ifa->ifa_next, ip_idx++) {
@@ -1112,69 +1197,146 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
                                continue;
                        if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
                                             cb->nlh->nlmsg_seq,
-                                            RTM_NEWADDR, NLM_F_MULTI) <= 0) {
-                               rcu_read_unlock();
+                                            RTM_NEWADDR, NLM_F_MULTI) <= 0)
                                goto done;
-                       }
                }
-               rcu_read_unlock();
+cont:
+               idx++;
        }
 
 done:
-       read_unlock(&dev_base_lock);
        cb->args[0] = idx;
        cb->args[1] = ip_idx;
 
        return skb->len;
 }
 
-static void rtmsg_ifa(int event, struct in_ifaddr* ifa)
+static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
+                     u32 pid)
 {
-       int size = NLMSG_SPACE(sizeof(struct ifaddrmsg) + 128);
-       struct sk_buff *skb = alloc_skb(size, GFP_KERNEL);
-
-       if (!skb)
-               netlink_set_err(rtnl, 0, RTNLGRP_IPV4_IFADDR, ENOBUFS);
-       else if (inet_fill_ifaddr(skb, ifa, 0, 0, event, 0) < 0) {
+       struct sk_buff *skb;
+       u32 seq = nlh ? nlh->nlmsg_seq : 0;
+       int err = -ENOBUFS;
+
+       skb = nlmsg_new(inet_nlmsg_size(), GFP_KERNEL);
+       if (skb == NULL)
+               goto errout;
+
+       err = inet_fill_ifaddr(skb, ifa, pid, seq, event, 0);
+       if (err < 0) {
+               /* -EMSGSIZE implies BUG in inet_nlmsg_size() */
+               WARN_ON(err == -EMSGSIZE);
                kfree_skb(skb);
-               netlink_set_err(rtnl, 0, RTNLGRP_IPV4_IFADDR, EINVAL);
-       } else {
-               netlink_broadcast(rtnl, skb, 0, RTNLGRP_IPV4_IFADDR, GFP_KERNEL);
+               goto errout;
        }
+       err = rtnl_notify(skb, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
+errout:
+       if (err < 0)
+               rtnl_set_sk_err(RTNLGRP_IPV4_IFADDR, err);
 }
 
-static struct rtnetlink_link inet_rtnetlink_table[RTM_NR_MSGTYPES] = {
-       [RTM_NEWADDR  - RTM_BASE] = { .doit     = inet_rtm_newaddr,     },
-       [RTM_DELADDR  - RTM_BASE] = { .doit     = inet_rtm_deladdr,     },
-       [RTM_GETADDR  - RTM_BASE] = { .dumpit   = inet_dump_ifaddr,     },
-       [RTM_NEWROUTE - RTM_BASE] = { .doit     = inet_rtm_newroute,    },
-       [RTM_DELROUTE - RTM_BASE] = { .doit     = inet_rtm_delroute,    },
-       [RTM_GETROUTE - RTM_BASE] = { .doit     = inet_rtm_getroute,
-                                     .dumpit   = inet_dump_fib,        },
-#ifdef CONFIG_IP_MULTIPLE_TABLES
-       [RTM_NEWRULE  - RTM_BASE] = { .doit     = inet_rtm_newrule,     },
-       [RTM_DELRULE  - RTM_BASE] = { .doit     = inet_rtm_delrule,     },
-       [RTM_GETRULE  - RTM_BASE] = { .dumpit   = inet_dump_rules,      },
-#endif
-};
-
 #ifdef CONFIG_SYSCTL
 
+static void devinet_copy_dflt_conf(int i)
+{
+       struct net_device *dev;
+
+       read_lock(&dev_base_lock);
+       for_each_netdev(&init_net, dev) {
+               struct in_device *in_dev;
+               rcu_read_lock();
+               in_dev = __in_dev_get_rcu(dev);
+               if (in_dev && !test_bit(i, in_dev->cnf.state))
+                       in_dev->cnf.data[i] = ipv4_devconf_dflt.data[i];
+               rcu_read_unlock();
+       }
+       read_unlock(&dev_base_lock);
+}
+
+static int devinet_conf_proc(ctl_table *ctl, int write,
+                            struct file* filp, void __user *buffer,
+                            size_t *lenp, loff_t *ppos)
+{
+       int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+
+       if (write) {
+               struct ipv4_devconf *cnf = ctl->extra1;
+               int i = (int *)ctl->data - cnf->data;
+
+               set_bit(i, cnf->state);
+
+               if (cnf == &ipv4_devconf_dflt)
+                       devinet_copy_dflt_conf(i);
+       }
+
+       return ret;
+}
+
+static int devinet_conf_sysctl(ctl_table *table, int __user *name, int nlen,
+                              void __user *oldval, size_t __user *oldlenp,
+                              void __user *newval, size_t newlen)
+{
+       struct ipv4_devconf *cnf;
+       int *valp = table->data;
+       int new;
+       int i;
+
+       if (!newval || !newlen)
+               return 0;
+
+       if (newlen != sizeof(int))
+               return -EINVAL;
+
+       if (get_user(new, (int __user *)newval))
+               return -EFAULT;
+
+       if (new == *valp)
+               return 0;
+
+       if (oldval && oldlenp) {
+               size_t len;
+
+               if (get_user(len, oldlenp))
+                       return -EFAULT;
+
+               if (len) {
+                       if (len > table->maxlen)
+                               len = table->maxlen;
+                       if (copy_to_user(oldval, valp, len))
+                               return -EFAULT;
+                       if (put_user(len, oldlenp))
+                               return -EFAULT;
+               }
+       }
+
+       *valp = new;
+
+       cnf = table->extra1;
+       i = (int *)table->data - cnf->data;
+
+       set_bit(i, cnf->state);
+
+       if (cnf == &ipv4_devconf_dflt)
+               devinet_copy_dflt_conf(i);
+
+       return 1;
+}
+
 void inet_forward_change(void)
 {
        struct net_device *dev;
-       int on = ipv4_devconf.forwarding;
+       int on = IPV4_DEVCONF_ALL(FORWARDING);
 
-       ipv4_devconf.accept_redirects = !on;
-       ipv4_devconf_dflt.forwarding = on;
+       IPV4_DEVCONF_ALL(ACCEPT_REDIRECTS) = !on;
+       IPV4_DEVCONF_DFLT(FORWARDING) = on;
 
        read_lock(&dev_base_lock);
-       for (dev = dev_base; dev; dev = dev->next) {
+       for_each_netdev(&init_net, dev) {
                struct in_device *in_dev;
                rcu_read_lock();
                in_dev = __in_dev_get_rcu(dev);
                if (in_dev)
-                       in_dev->cnf.forwarding = on;
+                       IN_DEV_CONF_SET(in_dev, FORWARDING, on);
                rcu_read_unlock();
        }
        read_unlock(&dev_base_lock);
@@ -1191,9 +1353,9 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
        int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
 
        if (write && *valp != val) {
-               if (valp == &ipv4_devconf.forwarding)
+               if (valp == &IPV4_DEVCONF_ALL(FORWARDING))
                        inet_forward_change();
-               else if (valp != &ipv4_devconf_dflt.forwarding)
+               else if (valp != &IPV4_DEVCONF_DFLT(FORWARDING))
                        rt_cache_flush(0);
        }
 
@@ -1216,45 +1378,45 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
 
 int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen,
                                  void __user *oldval, size_t __user *oldlenp,
-                                 void __user *newval, size_t newlen, 
-                                 void **context)
+                                 void __user *newval, size_t newlen)
 {
-       int *valp = table->data;
-       int new;
+       int ret = devinet_conf_sysctl(table, name, nlen, oldval, oldlenp,
+                                     newval, newlen);
 
-       if (!newval || !newlen)
-               return 0;
+       if (ret == 1)
+               rt_cache_flush(0);
 
-       if (newlen != sizeof(int))
-               return -EINVAL;
+       return ret;
+}
 
-       if (get_user(new, (int __user *)newval))
-               return -EFAULT;
 
-       if (new == *valp)
-               return 0;
+#define DEVINET_SYSCTL_ENTRY(attr, name, mval, proc, sysctl) \
+       { \
+               .ctl_name       = NET_IPV4_CONF_ ## attr, \
+               .procname       = name, \
+               .data           = ipv4_devconf.data + \
+                                 NET_IPV4_CONF_ ## attr - 1, \
+               .maxlen         = sizeof(int), \
+               .mode           = mval, \
+               .proc_handler   = proc, \
+               .strategy       = sysctl, \
+               .extra1         = &ipv4_devconf, \
+       }
 
-       if (oldval && oldlenp) {
-               size_t len;
+#define DEVINET_SYSCTL_RW_ENTRY(attr, name) \
+       DEVINET_SYSCTL_ENTRY(attr, name, 0644, devinet_conf_proc, \
+                            devinet_conf_sysctl)
 
-               if (get_user(len, oldlenp))
-                       return -EFAULT;
-
-               if (len) {
-                       if (len > table->maxlen)
-                               len = table->maxlen;
-                       if (copy_to_user(oldval, valp, len))
-                               return -EFAULT;
-                       if (put_user(len, oldlenp))
-                               return -EFAULT;
-               }
-       }
+#define DEVINET_SYSCTL_RO_ENTRY(attr, name) \
+       DEVINET_SYSCTL_ENTRY(attr, name, 0444, devinet_conf_proc, \
+                            devinet_conf_sysctl)
 
-       *valp = new;
-       rt_cache_flush(0);
-       return 1;
-}
+#define DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, proc, sysctl) \
+       DEVINET_SYSCTL_ENTRY(attr, name, 0644, proc, sysctl)
 
+#define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
+       DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush, \
+                                    ipv4_doint_and_flush_strategy)
 
 static struct devinet_sysctl_table {
        struct ctl_table_header *sysctl_header;
@@ -1265,178 +1427,34 @@ static struct devinet_sysctl_table {
        ctl_table               devinet_root_dir[2];
 } devinet_sysctl = {
        .devinet_vars = {
-               {
-                       .ctl_name       = NET_IPV4_CONF_FORWARDING,
-                       .procname       = "forwarding",
-                       .data           = &ipv4_devconf.forwarding,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &devinet_sysctl_forward,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_MC_FORWARDING,
-                       .procname       = "mc_forwarding",
-                       .data           = &ipv4_devconf.mc_forwarding,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0444,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ACCEPT_REDIRECTS,
-                       .procname       = "accept_redirects",
-                       .data           = &ipv4_devconf.accept_redirects,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_SECURE_REDIRECTS,
-                       .procname       = "secure_redirects",
-                       .data           = &ipv4_devconf.secure_redirects,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_SHARED_MEDIA,
-                       .procname       = "shared_media",
-                       .data           = &ipv4_devconf.shared_media,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_RP_FILTER,
-                       .procname       = "rp_filter",
-                       .data           = &ipv4_devconf.rp_filter,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_SEND_REDIRECTS,
-                       .procname       = "send_redirects",
-                       .data           = &ipv4_devconf.send_redirects,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE,
-                       .procname       = "accept_source_route",
-                       .data           = &ipv4_devconf.accept_source_route,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_PROXY_ARP,
-                       .procname       = "proxy_arp",
-                       .data           = &ipv4_devconf.proxy_arp,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_MEDIUM_ID,
-                       .procname       = "medium_id",
-                       .data           = &ipv4_devconf.medium_id,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_BOOTP_RELAY,
-                       .procname       = "bootp_relay",
-                       .data           = &ipv4_devconf.bootp_relay,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_LOG_MARTIANS,
-                       .procname       = "log_martians",
-                       .data           = &ipv4_devconf.log_martians,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_TAG,
-                       .procname       = "tag",
-                       .data           = &ipv4_devconf.tag,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ARPFILTER,
-                       .procname       = "arp_filter",
-                       .data           = &ipv4_devconf.arp_filter,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ARP_ANNOUNCE,
-                       .procname       = "arp_announce",
-                       .data           = &ipv4_devconf.arp_announce,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ARP_IGNORE,
-                       .procname       = "arp_ignore",
-                       .data           = &ipv4_devconf.arp_ignore,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_ARP_ACCEPT,
-                       .procname       = "arp_accept",
-                       .data           = &ipv4_devconf.arp_accept,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &proc_dointvec,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_NOXFRM,
-                       .procname       = "disable_xfrm",
-                       .data           = &ipv4_devconf.no_xfrm,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &ipv4_doint_and_flush,
-                       .strategy       = &ipv4_doint_and_flush_strategy,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_NOPOLICY,
-                       .procname       = "disable_policy",
-                       .data           = &ipv4_devconf.no_policy,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &ipv4_doint_and_flush,
-                       .strategy       = &ipv4_doint_and_flush_strategy,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_FORCE_IGMP_VERSION,
-                       .procname       = "force_igmp_version",
-                       .data           = &ipv4_devconf.force_igmp_version,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &ipv4_doint_and_flush,
-                       .strategy       = &ipv4_doint_and_flush_strategy,
-               },
-               {
-                       .ctl_name       = NET_IPV4_CONF_PROMOTE_SECONDARIES,
-                       .procname       = "promote_secondaries",
-                       .data           = &ipv4_devconf.promote_secondaries,
-                       .maxlen         = sizeof(int),
-                       .mode           = 0644,
-                       .proc_handler   = &ipv4_doint_and_flush,
-                       .strategy       = &ipv4_doint_and_flush_strategy,
-               },
+               DEVINET_SYSCTL_COMPLEX_ENTRY(FORWARDING, "forwarding",
+                                            devinet_sysctl_forward,
+                                            devinet_conf_sysctl),
+               DEVINET_SYSCTL_RO_ENTRY(MC_FORWARDING, "mc_forwarding"),
+
+               DEVINET_SYSCTL_RW_ENTRY(ACCEPT_REDIRECTS, "accept_redirects"),
+               DEVINET_SYSCTL_RW_ENTRY(SECURE_REDIRECTS, "secure_redirects"),
+               DEVINET_SYSCTL_RW_ENTRY(SHARED_MEDIA, "shared_media"),
+               DEVINET_SYSCTL_RW_ENTRY(RP_FILTER, "rp_filter"),
+               DEVINET_SYSCTL_RW_ENTRY(SEND_REDIRECTS, "send_redirects"),
+               DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE,
+                                       "accept_source_route"),
+               DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"),
+               DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"),
+               DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"),
+               DEVINET_SYSCTL_RW_ENTRY(LOG_MARTIANS, "log_martians"),
+               DEVINET_SYSCTL_RW_ENTRY(TAG, "tag"),
+               DEVINET_SYSCTL_RW_ENTRY(ARPFILTER, "arp_filter"),
+               DEVINET_SYSCTL_RW_ENTRY(ARP_ANNOUNCE, "arp_announce"),
+               DEVINET_SYSCTL_RW_ENTRY(ARP_IGNORE, "arp_ignore"),
+               DEVINET_SYSCTL_RW_ENTRY(ARP_ACCEPT, "arp_accept"),
+
+               DEVINET_SYSCTL_FLUSHING_ENTRY(NOXFRM, "disable_xfrm"),
+               DEVINET_SYSCTL_FLUSHING_ENTRY(NOPOLICY, "disable_policy"),
+               DEVINET_SYSCTL_FLUSHING_ENTRY(FORCE_IGMP_VERSION,
+                                             "force_igmp_version"),
+               DEVINET_SYSCTL_FLUSHING_ENTRY(PROMOTE_SECONDARIES,
+                                             "promote_secondaries"),
        },
        .devinet_dev = {
                {
@@ -1447,7 +1465,7 @@ static struct devinet_sysctl_table {
                },
        },
        .devinet_conf_dir = {
-               {
+               {
                        .ctl_name       = NET_IPV4_CONF,
                        .procname       = "conf",
                        .mode           = 0555,
@@ -1477,45 +1495,41 @@ static void devinet_sysctl_register(struct in_device *in_dev,
 {
        int i;
        struct net_device *dev = in_dev ? in_dev->dev : NULL;
-       struct devinet_sysctl_table *t = kmalloc(sizeof(*t), GFP_KERNEL);
+       struct devinet_sysctl_table *t = kmemdup(&devinet_sysctl, sizeof(*t),
+                                                GFP_KERNEL);
        char *dev_name = NULL;
 
        if (!t)
                return;
-       memcpy(t, &devinet_sysctl, sizeof(*t));
        for (i = 0; i < ARRAY_SIZE(t->devinet_vars) - 1; i++) {
                t->devinet_vars[i].data += (char *)p - (char *)&ipv4_devconf;
-               t->devinet_vars[i].de = NULL;
+               t->devinet_vars[i].extra1 = p;
        }
 
        if (dev) {
-               dev_name = dev->name; 
+               dev_name = dev->name;
                t->devinet_dev[0].ctl_name = dev->ifindex;
        } else {
                dev_name = "default";
                t->devinet_dev[0].ctl_name = NET_PROTO_CONF_DEFAULT;
        }
 
-       /* 
-        * Make a copy of dev_name, because '.procname' is regarded as const 
+       /*
+        * Make a copy of dev_name, because '.procname' is regarded as const
         * by sysctl and we wouldn't want anyone to change it under our feet
         * (see SIOCSIFNAME).
-        */     
+        */
        dev_name = kstrdup(dev_name, GFP_KERNEL);
        if (!dev_name)
            goto free;
 
        t->devinet_dev[0].procname    = dev_name;
        t->devinet_dev[0].child       = t->devinet_vars;
-       t->devinet_dev[0].de          = NULL;
        t->devinet_conf_dir[0].child  = t->devinet_dev;
-       t->devinet_conf_dir[0].de     = NULL;
        t->devinet_proto_dir[0].child = t->devinet_conf_dir;
-       t->devinet_proto_dir[0].de    = NULL;
        t->devinet_root_dir[0].child  = t->devinet_proto_dir;
-       t->devinet_root_dir[0].de     = NULL;
 
-       t->sysctl_header = register_sysctl_table(t->devinet_root_dir, 0);
+       t->sysctl_header = register_sysctl_table(t->devinet_root_dir);
        if (!t->sysctl_header)
            goto free_procname;
 
@@ -1546,15 +1560,17 @@ void __init devinet_init(void)
 {
        register_gifconf(PF_INET, inet_gifconf);
        register_netdevice_notifier(&ip_netdev_notifier);
-       rtnetlink_links[PF_INET] = inet_rtnetlink_table;
+
+       rtnl_register(PF_INET, RTM_NEWADDR, inet_rtm_newaddr, NULL);
+       rtnl_register(PF_INET, RTM_DELADDR, inet_rtm_deladdr, NULL);
+       rtnl_register(PF_INET, RTM_GETADDR, NULL, inet_dump_ifaddr);
 #ifdef CONFIG_SYSCTL
        devinet_sysctl.sysctl_header =
-               register_sysctl_table(devinet_sysctl.devinet_root_dir, 0);
+               register_sysctl_table(devinet_sysctl.devinet_root_dir);
        devinet_sysctl_register(NULL, &ipv4_devconf_dflt);
 #endif
 }
 
-EXPORT_SYMBOL(devinet_ioctl);
 EXPORT_SYMBOL(in_dev_finish_destroy);
 EXPORT_SYMBOL(inet_select_addr);
 EXPORT_SYMBOL(inetdev_by_index);