netfilter: xtables: add struct xt_mtchk_param::net
[safe/jmp/linux-2.6] / net / ipv4 / devinet.c
index c2045f9..5cdbc10 100644 (file)
@@ -1174,39 +1174,54 @@ nla_put_failure:
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 {
        struct net *net = sock_net(skb->sk);
-       int idx, ip_idx;
+       int h, s_h;
+       int idx, s_idx;
+       int ip_idx, s_ip_idx;
        struct net_device *dev;
        struct in_device *in_dev;
        struct in_ifaddr *ifa;
-       int s_ip_idx, s_idx = cb->args[0];
+       struct hlist_head *head;
+       struct hlist_node *node;
 
-       s_ip_idx = ip_idx = cb->args[1];
-       idx = 0;
-       for_each_netdev(net, dev) {
-               if (idx < s_idx)
-                       goto cont;
-               if (idx > s_idx)
-                       s_ip_idx = 0;
-               in_dev = __in_dev_get_rtnl(dev);
-               if (!in_dev)
-                       goto cont;
+       s_h = cb->args[0];
+       s_idx = idx = cb->args[1];
+       s_ip_idx = ip_idx = cb->args[2];
 
-               for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
-                    ifa = ifa->ifa_next, ip_idx++) {
-                       if (ip_idx < s_ip_idx)
-                               continue;
-                       if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+       for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
+               idx = 0;
+               head = &net->dev_index_head[h];
+               rcu_read_lock();
+               hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+                       if (idx < s_idx)
+                               goto cont;
+                       if (idx > s_idx)
+                               s_ip_idx = 0;
+                       in_dev = __in_dev_get_rcu(dev);
+                       if (!in_dev)
+                               goto cont;
+
+                       for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
+                            ifa = ifa->ifa_next, ip_idx++) {
+                               if (ip_idx < s_ip_idx)
+                                       continue;
+                               if (inet_fill_ifaddr(skb, ifa,
+                                            NETLINK_CB(cb->skb).pid,
                                             cb->nlh->nlmsg_seq,
-                                            RTM_NEWADDR, NLM_F_MULTI) <= 0)
-                               goto done;
-               }
+                                            RTM_NEWADDR, NLM_F_MULTI) <= 0) {
+                                       rcu_read_unlock();
+                                       goto done;
+                               }
+                       }
 cont:
-               idx++;
+                       idx++;
+               }
+               rcu_read_unlock();
        }
 
 done:
-       cb->args[0] = idx;
-       cb->args[1] = ip_idx;
+       cb->args[0] = h;
+       cb->args[1] = idx;
+       cb->args[2] = ip_idx;
 
        return skb->len;
 }
@@ -1296,58 +1311,6 @@ static int devinet_conf_proc(ctl_table *ctl, int write,
        return ret;
 }
 
-static int devinet_conf_sysctl(ctl_table *table,
-                              void __user *oldval, size_t __user *oldlenp,
-                              void __user *newval, size_t newlen)
-{
-       struct ipv4_devconf *cnf;
-       struct net *net;
-       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;
-       net = table->extra2;
-       i = (int *)table->data - cnf->data;
-
-       set_bit(i, cnf->state);
-
-       if (cnf == net->ipv4.devconf_dflt)
-               devinet_copy_dflt_conf(net, i);
-
-       return 1;
-}
-
 static int devinet_sysctl_forward(ctl_table *ctl, int write,
                                  void __user *buffer,
                                  size_t *lenp, loff_t *ppos)
@@ -1393,47 +1356,28 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
        return ret;
 }
 
-int ipv4_doint_and_flush_strategy(ctl_table *table,
-                                 void __user *oldval, size_t __user *oldlenp,
-                                 void __user *newval, size_t newlen)
-{
-       int ret = devinet_conf_sysctl(table, oldval, oldlenp, newval, newlen);
-       struct net *net = table->extra2;
-
-       if (ret == 1)
-               rt_cache_flush(net, 0);
-
-       return ret;
-}
-
-
-#define DEVINET_SYSCTL_ENTRY(attr, name, mval, proc, sysctl) \
+#define DEVINET_SYSCTL_ENTRY(attr, name, mval, proc) \
        { \
-               .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, \
        }
 
 #define DEVINET_SYSCTL_RW_ENTRY(attr, name) \
-       DEVINET_SYSCTL_ENTRY(attr, name, 0644, devinet_conf_proc, \
-                            devinet_conf_sysctl)
+       DEVINET_SYSCTL_ENTRY(attr, name, 0644, devinet_conf_proc)
 
 #define DEVINET_SYSCTL_RO_ENTRY(attr, name) \
-       DEVINET_SYSCTL_ENTRY(attr, name, 0444, devinet_conf_proc, \
-                            devinet_conf_sysctl)
+       DEVINET_SYSCTL_ENTRY(attr, name, 0444, devinet_conf_proc)
 
-#define DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, proc, sysctl) \
-       DEVINET_SYSCTL_ENTRY(attr, name, 0644, proc, sysctl)
+#define DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, proc) \
+       DEVINET_SYSCTL_ENTRY(attr, name, 0644, proc)
 
 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
-       DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush, \
-                                    ipv4_doint_and_flush_strategy)
+       DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
 
 static struct devinet_sysctl_table {
        struct ctl_table_header *sysctl_header;
@@ -1442,8 +1386,7 @@ static struct devinet_sysctl_table {
 } devinet_sysctl = {
        .devinet_vars = {
                DEVINET_SYSCTL_COMPLEX_ENTRY(FORWARDING, "forwarding",
-                                            devinet_sysctl_forward,
-                                            devinet_conf_sysctl),
+                                            devinet_sysctl_forward),
                DEVINET_SYSCTL_RO_ENTRY(MC_FORWARDING, "mc_forwarding"),
 
                DEVINET_SYSCTL_RW_ENTRY(ACCEPT_REDIRECTS, "accept_redirects"),
@@ -1453,6 +1396,7 @@ static struct devinet_sysctl_table {
                DEVINET_SYSCTL_RW_ENTRY(SEND_REDIRECTS, "send_redirects"),
                DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE,
                                        "accept_source_route"),
+               DEVINET_SYSCTL_RW_ENTRY(ACCEPT_LOCAL, "accept_local"),
                DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"),
                DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"),
                DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"),
@@ -1474,7 +1418,7 @@ static struct devinet_sysctl_table {
 };
 
 static int __devinet_sysctl_register(struct net *net, char *dev_name,
-               int ctl_name, struct ipv4_devconf *p)
+                                       struct ipv4_devconf *p)
 {
        int i;
        struct devinet_sysctl_table *t;
@@ -1482,9 +1426,9 @@ static int __devinet_sysctl_register(struct net *net, char *dev_name,
 #define DEVINET_CTL_PATH_DEV   3
 
        struct ctl_path devinet_ctl_path[] = {
-               { .procname = "net", .ctl_name = CTL_NET, },
-               { .procname = "ipv4", .ctl_name = NET_IPV4, },
-               { .procname = "conf", .ctl_name = NET_IPV4_CONF, },
+               { .procname = "net",  },
+               { .procname = "ipv4", },
+               { .procname = "conf", },
                { /* to be set */ },
                { },
        };
@@ -1509,7 +1453,6 @@ static int __devinet_sysctl_register(struct net *net, char *dev_name,
                goto free;
 
        devinet_ctl_path[DEVINET_CTL_PATH_DEV].procname = t->dev_name;
-       devinet_ctl_path[DEVINET_CTL_PATH_DEV].ctl_name = ctl_name;
 
        t->sysctl_header = register_net_sysctl_table(net, devinet_ctl_path,
                        t->devinet_vars);
@@ -1543,9 +1486,9 @@ static void __devinet_sysctl_unregister(struct ipv4_devconf *cnf)
 static void devinet_sysctl_register(struct in_device *idev)
 {
        neigh_sysctl_register(idev->dev, idev->arp_parms, NET_IPV4,
-                       NET_IPV4_NEIGH, "ipv4", NULL, NULL);
+                       NET_IPV4_NEIGH, "ipv4", NULL);
        __devinet_sysctl_register(dev_net(idev->dev), idev->dev->name,
-                       idev->dev->ifindex, &idev->cnf);
+                                       &idev->cnf);
 }
 
 static void devinet_sysctl_unregister(struct in_device *idev)
@@ -1556,14 +1499,12 @@ static void devinet_sysctl_unregister(struct in_device *idev)
 
 static struct ctl_table ctl_forward_entry[] = {
        {
-               .ctl_name       = NET_IPV4_FORWARD,
                .procname       = "ip_forward",
                .data           = &ipv4_devconf.data[
                                        NET_IPV4_CONF_FORWARDING - 1],
                .maxlen         = sizeof(int),
                .mode           = 0644,
                .proc_handler   = devinet_sysctl_forward,
-               .strategy       = devinet_conf_sysctl,
                .extra1         = &ipv4_devconf,
                .extra2         = &init_net,
        },
@@ -1571,8 +1512,8 @@ static struct ctl_table ctl_forward_entry[] = {
 };
 
 static __net_initdata struct ctl_path net_ipv4_path[] = {
-       { .procname = "net", .ctl_name = CTL_NET, },
-       { .procname = "ipv4", .ctl_name = NET_IPV4, },
+       { .procname = "net", },
+       { .procname = "ipv4", },
        { },
 };
 #endif
@@ -1590,7 +1531,7 @@ static __net_init int devinet_init_net(struct net *net)
        all = &ipv4_devconf;
        dflt = &ipv4_devconf_dflt;
 
-       if (net != &init_net) {
+       if (!net_eq(net, &init_net)) {
                all = kmemdup(all, sizeof(ipv4_devconf), GFP_KERNEL);
                if (all == NULL)
                        goto err_alloc_all;
@@ -1611,13 +1552,11 @@ static __net_init int devinet_init_net(struct net *net)
        }
 
 #ifdef CONFIG_SYSCTL
-       err = __devinet_sysctl_register(net, "all",
-                       NET_PROTO_CONF_ALL, all);
+       err = __devinet_sysctl_register(net, "all", all);
        if (err < 0)
                goto err_reg_all;
 
-       err = __devinet_sysctl_register(net, "default",
-                       NET_PROTO_CONF_DEFAULT, dflt);
+       err = __devinet_sysctl_register(net, "default", dflt);
        if (err < 0)
                goto err_reg_dflt;