tgafb: remove a redundant non-mono test in mono imageblit
[safe/jmp/linux-2.6] / net / ipv4 / devinet.c
index 25c8a42..55d199e 100644 (file)
@@ -35,7 +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>
@@ -49,7 +48,6 @@
 #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/netlink.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,
+       },
 };
 
-static struct nla_policy ifa_ipv4_policy[IFA_MAX+1] __read_mostly = {
+#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 },
@@ -143,7 +147,7 @@ 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;
 
@@ -174,9 +178,10 @@ 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);
-out:
+
        /* 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:
        kfree(in_dev);
@@ -198,8 +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;
 
@@ -251,7 +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
         **/
 
@@ -259,7 +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;
 
@@ -322,12 +325,8 @@ 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,
@@ -400,12 +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);
@@ -421,7 +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);
@@ -502,10 +499,12 @@ static struct in_ifaddr *rtm_to_ifaddr(struct nlmsghdr *nlh)
                goto errout;
 
        ifm = nlmsg_data(nlh);
-       if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL)
+       if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL) {
+               err = -EINVAL;
                goto errout;
+       }
 
-       dev = __dev_get_by_index(ifm->ifa_index);
+       dev = __dev_get_by_index(&init_net, ifm->ifa_index);
        if (dev == NULL) {
                err = -ENODEV;
                goto errout;
@@ -513,13 +512,12 @@ static struct in_ifaddr *rtm_to_ifaddr(struct nlmsghdr *nlh)
 
        in_dev = __in_dev_get_rtnl(dev);
        if (in_dev == NULL) {
-               in_dev = inetdev_init(dev);
-               if (in_dev == NULL) {
-                       err = -ENOBUFS;
-                       goto errout;
-               }
+               err = -ENOBUFS;
+               goto errout;
        }
 
+       ipv4_devconf_setall(in_dev);
+
        ifa = inet_alloc_ifa();
        if (ifa == NULL) {
                /*
@@ -582,8 +580,8 @@ 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 {
                __u32 haddr = ntohl(addr);
 
@@ -595,7 +593,7 @@ static __inline__ int inet_abc_len(__be32 addr)
                        rc = 24;
        }
 
-       return rc;
+       return rc;
 }
 
 
@@ -628,10 +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 */
@@ -669,7 +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)
@@ -706,7 +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;
@@ -909,7 +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;
 
@@ -988,7 +986,7 @@ __be32 inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local,
 
        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)
@@ -1019,29 +1017,29 @@ int unregister_inetaddr_notifier(struct notifier_block *nb)
  * 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 */
 
@@ -1051,15 +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;
        }
@@ -1072,7 +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 =
@@ -1139,7 +1142,7 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
 
        nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags);
        if (nlh == NULL)
-               return -ENOBUFS;
+               return -EMSGSIZE;
 
        ifm = nlmsg_data(nlh);
        ifm->ifa_family = AF_INET;
@@ -1166,7 +1169,8 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
        return nlmsg_end(skb, nlh);
 
 nla_put_failure:
-       return nlmsg_cancel(skb, nlh);
+       nlmsg_cancel(skb, nlh);
+       return -EMSGSIZE;
 }
 
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
@@ -1178,17 +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++) {
@@ -1196,16 +1197,14 @@ 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;
 
@@ -1224,45 +1223,120 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
                goto errout;
 
        err = inet_fill_ifaddr(skb, ifa, pid, seq, event, 0);
-       /* failure implies BUG in inet_nlmsg_size() */
-       BUG_ON(err < 0);
-
+       if (err < 0) {
+               /* -EMSGSIZE implies BUG in inet_nlmsg_size() */
+               WARN_ON(err == -EMSGSIZE);
+               kfree_skb(skb);
+               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_GETRULE  - RTM_BASE] = { .dumpit   = fib4_rules_dump,      },
-#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);
@@ -1279,9 +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);
        }
 
@@ -1306,42 +1380,43 @@ 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)
 {
-       int *valp = table->data;
-       int new;
-
-       if (!newval || !newlen)
-               return 0;
+       int ret = devinet_conf_sysctl(table, name, nlen, oldval, oldlenp,
+                                     newval, newlen);
 
-       if (newlen != sizeof(int))
-               return -EINVAL;
+       if (ret == 1)
+               rt_cache_flush(0);
 
-       if (get_user(new, (int __user *)newval))
-               return -EFAULT;
+       return ret;
+}
 
-       if (new == *valp)
-               return 0;
 
-       if (oldval && oldlenp) {
-               size_t len;
+#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 (get_user(len, oldlenp))
-                       return -EFAULT;
+#define DEVINET_SYSCTL_RW_ENTRY(attr, name) \
+       DEVINET_SYSCTL_ENTRY(attr, name, 0644, devinet_conf_proc, \
+                            devinet_conf_sysctl)
 
-               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;
@@ -1352,178 +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 = {
                {
@@ -1534,7 +1465,7 @@ static struct devinet_sysctl_table {
                },
        },
        .devinet_conf_dir = {
-               {
+               {
                        .ctl_name       = NET_IPV4_CONF,
                        .procname       = "conf",
                        .mode           = 0555,
@@ -1572,37 +1503,33 @@ static void devinet_sysctl_register(struct in_device *in_dev,
                return;
        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;
 
@@ -1633,10 +1560,13 @@ 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
 }