1 files changed, 168 insertions, 0 deletions
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
new file mode 100644
index 0000000..587f8f6
--- /dev/null
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -0,0 +1,168 @@
+/*
+ * sysctl_net_ipv6.c: sysctl interface to net IPV6 subsystem.
+ *
+ * Changes:
+ * YOSHIFUJI Hideaki @USAGI:	added icmp sysctl table.
+ */
+
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+#include <linux/in6.h>
+#include <linux/ipv6.h>
+#include <net/ndisc.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
+#include <net/inet_frag.h>
+
+static ctl_table ipv6_table_template[] = {
+	{
+		.ctl_name	= NET_IPV6_ROUTE,
+		.procname	= "route",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= ipv6_route_table_template
+	},
+	{
+		.ctl_name	= NET_IPV6_ICMP,
+		.procname	= "icmp",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= ipv6_icmp_table_template
+	},
+	{
+		.ctl_name	= NET_IPV6_BINDV6ONLY,
+		.procname	= "bindv6only",
+		.data		= &init_net.ipv6.sysctl.bindv6only,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table ipv6_table[] = {
+	{
+		.ctl_name	= NET_IPV6_MLD_MAX_MSF,
+		.procname	= "mld_max_msf",
+		.data		= &sysctl_mld_max_msf,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{ .ctl_name = 0 }
+};
+
+struct ctl_path net_ipv6_ctl_path[] = {
+	{ .procname = "net", .ctl_name = CTL_NET, },
+	{ .procname = "ipv6", .ctl_name = NET_IPV6, },
+	{ },
+};
+EXPORT_SYMBOL_GPL(net_ipv6_ctl_path);
+
+static int ipv6_sysctl_net_init(struct net *net)
+{
+	struct ctl_table *ipv6_table;
+	struct ctl_table *ipv6_route_table;
+	struct ctl_table *ipv6_icmp_table;
+	int err;
+
+	err = -ENOMEM;
+	ipv6_table = kmemdup(ipv6_table_template, sizeof(ipv6_table_template),
+			     GFP_KERNEL);
+	if (!ipv6_table)
+		goto out;
+
+	ipv6_route_table = ipv6_route_sysctl_init(net);
+	if (!ipv6_route_table)
+		goto out_ipv6_table;
+	ipv6_table[0].child = ipv6_route_table;
+
+	ipv6_icmp_table = ipv6_icmp_sysctl_init(net);
+	if (!ipv6_icmp_table)
+		goto out_ipv6_route_table;
+	ipv6_table[1].child = ipv6_icmp_table;
+
+	ipv6_table[2].data = &net->ipv6.sysctl.bindv6only;
+
+	net->ipv6.sysctl.table = register_net_sysctl_table(net, net_ipv6_ctl_path,
+							   ipv6_table);
+	if (!net->ipv6.sysctl.table)
+		goto out_ipv6_icmp_table;
+
+	err = 0;
+out:
+	return err;
+
+out_ipv6_icmp_table:
+	kfree(ipv6_icmp_table);
+out_ipv6_route_table:
+	kfree(ipv6_route_table);
+out_ipv6_table:
+	kfree(ipv6_table);
+	goto out;
+}
+
+static void ipv6_sysctl_net_exit(struct net *net)
+{
+	struct ctl_table *ipv6_table;
+	struct ctl_table *ipv6_route_table;
+	struct ctl_table *ipv6_icmp_table;
+
+	ipv6_table = net->ipv6.sysctl.table->ctl_table_arg;
+	ipv6_route_table = ipv6_table[0].child;
+	ipv6_icmp_table = ipv6_table[1].child;
+
+	unregister_net_sysctl_table(net->ipv6.sysctl.table);
+
+	kfree(ipv6_table);
+	kfree(ipv6_route_table);
+	kfree(ipv6_icmp_table);
+}
+
+static struct pernet_operations ipv6_sysctl_net_ops = {
+	.init = ipv6_sysctl_net_init,
+	.exit = ipv6_sysctl_net_exit,
+};
+
+static struct ctl_table_header *ip6_header;
+
+int ipv6_sysctl_register(void)
+{
+	int err = -ENOMEM;;
+
+	ip6_header = register_net_sysctl_rotable(net_ipv6_ctl_path, ipv6_table);
+	if (ip6_header == NULL)
+		goto out;
+
+	err = register_pernet_subsys(&ipv6_sysctl_net_ops);
+	if (err)
+		goto err_pernet;
+out:
+	return err;
+
+err_pernet:
+	unregister_net_sysctl_table(ip6_header);
+	goto out;
+}
+
+void ipv6_sysctl_unregister(void)
+{
+	unregister_net_sysctl_table(ip6_header);
+	unregister_pernet_subsys(&ipv6_sysctl_net_ops);
+}
+
+static struct ctl_table_header *ip6_base;
+
+int ipv6_static_sysctl_register(void)
+{
+	static struct ctl_table empty[1];
+	ip6_base = register_sysctl_paths(net_ipv6_ctl_path, empty);
+	if (ip6_base == NULL)
+		return -ENOMEM;
+	return 0;
+}
+
+void ipv6_static_sysctl_unregister(void)
+{
+	unregister_net_sysctl_table(ip6_base);
+}