#include <net/route.h>
#include <net/ip_fib.h>
#include <net/rtnetlink.h>
+#include <net/net_namespace.h>
struct ipv4_devconf ipv4_devconf = {
.data = {
},
};
-#define IPV4_DEVCONF_DFLT(attr) IPV4_DEVCONF(ipv4_devconf_dflt, attr)
+#define IPV4_DEVCONF_DFLT(net, attr) \
+ IPV4_DEVCONF((*net->ipv4.devconf_dflt), attr)
static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = {
[IFA_LOCAL] = { .type = NLA_U32 },
if (!in_dev)
goto out;
INIT_RCU_HEAD(&in_dev->rcu_head);
- memcpy(&in_dev->cnf, &ipv4_devconf_dflt, sizeof(in_dev->cnf));
+ memcpy(&in_dev->cnf, dev->nd_net->ipv4.devconf_dflt,
+ sizeof(in_dev->cnf));
in_dev->cnf.sysctl = NULL;
in_dev->dev = dev;
if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL)
in_dev_hold(in_dev);
ifa->ifa_dev = in_dev;
}
- if (LOOPBACK(ifa->ifa_local))
+ if (ipv4_is_loopback(ifa->ifa_local))
ifa->ifa_scope = RT_SCOPE_HOST;
return inet_insert_ifa(ifa);
}
{
int rc = -1; /* Something else, probably a multicast. */
- if (ZERONET(addr))
+ if (ipv4_is_zeronet(addr))
rc = 0;
else {
__u32 haddr = ntohl(addr);
#ifdef CONFIG_SYSCTL
-static void devinet_copy_dflt_conf(int i)
+static void devinet_copy_dflt_conf(struct net *net, int i)
{
struct net_device *dev;
read_lock(&dev_base_lock);
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(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];
+ in_dev->cnf.data[i] = net->ipv4.devconf_dflt->data[i];
rcu_read_unlock();
}
read_unlock(&dev_base_lock);
}
-static void inet_forward_change(void)
+static void inet_forward_change(struct net *net)
{
struct net_device *dev;
- int on = IPV4_DEVCONF_ALL(FORWARDING);
+ int on = IPV4_DEVCONF_ALL(net, FORWARDING);
- IPV4_DEVCONF_ALL(ACCEPT_REDIRECTS) = !on;
- IPV4_DEVCONF_DFLT(FORWARDING) = on;
+ IPV4_DEVCONF_ALL(net, ACCEPT_REDIRECTS) = !on;
+ IPV4_DEVCONF_DFLT(net, FORWARDING) = on;
read_lock(&dev_base_lock);
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
struct in_device *in_dev;
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
if (write) {
struct ipv4_devconf *cnf = ctl->extra1;
+ struct net *net = ctl->extra2;
int i = (int *)ctl->data - cnf->data;
set_bit(i, cnf->state);
- if (cnf == &ipv4_devconf_dflt)
- devinet_copy_dflt_conf(i);
+ if (cnf == net->ipv4.devconf_dflt)
+ devinet_copy_dflt_conf(net, i);
}
return ret;
void __user *newval, size_t newlen)
{
struct ipv4_devconf *cnf;
+ struct net *net;
int *valp = table->data;
int new;
int i;
*valp = new;
cnf = table->extra1;
+ net = table->extra2;
i = (int *)table->data - cnf->data;
set_bit(i, cnf->state);
- if (cnf == &ipv4_devconf_dflt)
- devinet_copy_dflt_conf(i);
+ if (cnf == net->ipv4.devconf_dflt)
+ devinet_copy_dflt_conf(net, i);
return 1;
}
int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
if (write && *valp != val) {
- if (valp == &IPV4_DEVCONF_ALL(FORWARDING))
- inet_forward_change();
- else if (valp != &IPV4_DEVCONF_DFLT(FORWARDING))
+ struct net *net = ctl->extra2;
+
+ if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING))
+ inet_forward_change(net);
+ else if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING))
rt_cache_flush(0);
}
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].extra1 = p;
+ t->devinet_vars[i].extra2 = net;
}
/*
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_sysctl_paths(devinet_ctl_path,
+ t->sysctl_header = register_net_sysctl_table(net, devinet_ctl_path,
t->devinet_vars);
if (!t->sysctl_header)
goto free_procname;
{
neigh_sysctl_register(idev->dev, idev->arp_parms, NET_IPV4,
NET_IPV4_NEIGH, "ipv4", NULL, NULL);
- __devinet_sysctl_register(idev->dev->name, idev->dev->ifindex,
- &idev->cnf);
+ __devinet_sysctl_register(idev->dev->nd_net, idev->dev->name,
+ idev->dev->ifindex, &idev->cnf);
}
static void devinet_sysctl_unregister(struct in_device *idev)
.proc_handler = devinet_sysctl_forward,
.strategy = devinet_conf_sysctl,
.extra1 = &ipv4_devconf,
+ .extra2 = &init_net,
},
{ },
};
-static __initdata struct ctl_path net_ipv4_path[] = {
+static __net_initdata struct ctl_path net_ipv4_path[] = {
{ .procname = "net", .ctl_name = CTL_NET, },
{ .procname = "ipv4", .ctl_name = NET_IPV4, },
{ },
};
+static __net_init int devinet_init_net(struct net *net)
+{
+ int err;
+ struct ctl_table *tbl;
+ struct ipv4_devconf *all, *dflt;
+ struct ctl_table_header *forw_hdr;
+
+ err = -ENOMEM;
+ all = &ipv4_devconf;
+ dflt = &ipv4_devconf_dflt;
+ tbl = ctl_forward_entry;
+
+ if (net != &init_net) {
+ all = kmemdup(all, sizeof(ipv4_devconf), GFP_KERNEL);
+ if (all == NULL)
+ goto err_alloc_all;
+
+ dflt = kmemdup(dflt, sizeof(ipv4_devconf_dflt), GFP_KERNEL);
+ if (dflt == NULL)
+ goto err_alloc_dflt;
+
+ tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
+ if (tbl == NULL)
+ goto err_alloc_ctl;
+
+ tbl[0].data = &all->data[NET_IPV4_CONF_FORWARDING - 1];
+ tbl[0].extra1 = all;
+ tbl[0].extra2 = net;
+ }
+
+#ifdef CONFIG_SYSCTL
+ err = __devinet_sysctl_register(net, "all",
+ NET_PROTO_CONF_ALL, all);
+ if (err < 0)
+ goto err_reg_all;
+
+ err = __devinet_sysctl_register(net, "default",
+ NET_PROTO_CONF_DEFAULT, dflt);
+ if (err < 0)
+ goto err_reg_dflt;
+
+ err = -ENOMEM;
+ forw_hdr = register_net_sysctl_table(net, net_ipv4_path, tbl);
+ if (forw_hdr == NULL)
+ goto err_reg_ctl;
+#endif
+
+ net->ipv4.forw_hdr = forw_hdr;
+ net->ipv4.devconf_all = all;
+ net->ipv4.devconf_dflt = dflt;
+ return 0;
+
+#ifdef CONFIG_SYSCTL
+err_reg_ctl:
+ __devinet_sysctl_unregister(dflt);
+err_reg_dflt:
+ __devinet_sysctl_unregister(all);
+err_reg_all:
+ if (tbl != ctl_forward_entry)
+ kfree(tbl);
+#endif
+err_alloc_ctl:
+ if (dflt != &ipv4_devconf_dflt)
+ kfree(dflt);
+err_alloc_dflt:
+ if (all != &ipv4_devconf)
+ kfree(all);
+err_alloc_all:
+ return err;
+}
+
+static __net_exit void devinet_exit_net(struct net *net)
+{
+ struct ctl_table *tbl;
+
+ tbl = net->ipv4.forw_hdr->ctl_table_arg;
+#ifdef CONFIG_SYSCTL
+ unregister_net_sysctl_table(net->ipv4.forw_hdr);
+ __devinet_sysctl_unregister(net->ipv4.devconf_dflt);
+ __devinet_sysctl_unregister(net->ipv4.devconf_all);
+#endif
+ kfree(tbl);
+ kfree(net->ipv4.devconf_dflt);
+ kfree(net->ipv4.devconf_all);
+}
+
+static __net_initdata struct pernet_operations devinet_ops = {
+ .init = devinet_init_net,
+ .exit = devinet_exit_net,
+};
+
void __init devinet_init(void)
{
+ register_pernet_subsys(&devinet_ops);
+
register_gifconf(PF_INET, inet_gifconf);
register_netdevice_notifier(&ip_netdev_notifier);
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_register("all", NET_PROTO_CONF_ALL,
- &ipv4_devconf);
- __devinet_sysctl_register("default", NET_PROTO_CONF_DEFAULT,
- &ipv4_devconf_dflt);
- register_sysctl_paths(net_ipv4_path, ctl_forward_entry);
-#endif
}
EXPORT_SYMBOL(in_dev_finish_destroy);
projects / linux-2.6-block.git / blobdiff