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-rw-r--r--net/ipv6/fib6_notifier.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/net/ipv6/fib6_notifier.c b/net/ipv6/fib6_notifier.c
new file mode 100644
index 000000000..f87ae33e1
--- /dev/null
+++ b/net/ipv6/fib6_notifier.c
@@ -0,0 +1,64 @@
+#include <linux/notifier.h>
+#include <linux/socket.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <net/net_namespace.h>
+#include <net/fib_notifier.h>
+#include <net/netns/ipv6.h>
+#include <net/ip6_fib.h>
+
+int call_fib6_notifier(struct notifier_block *nb,
+ enum fib_event_type event_type,
+ struct fib_notifier_info *info)
+{
+ info->family = AF_INET6;
+ return call_fib_notifier(nb, event_type, info);
+}
+
+int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
+ struct fib_notifier_info *info)
+{
+ info->family = AF_INET6;
+ return call_fib_notifiers(net, event_type, info);
+}
+
+static unsigned int fib6_seq_read(struct net *net)
+{
+ return fib6_tables_seq_read(net) + fib6_rules_seq_read(net);
+}
+
+static int fib6_dump(struct net *net, struct notifier_block *nb,
+ struct netlink_ext_ack *extack)
+{
+ int err;
+
+ err = fib6_rules_dump(net, nb, extack);
+ if (err)
+ return err;
+
+ return fib6_tables_dump(net, nb, extack);
+}
+
+static const struct fib_notifier_ops fib6_notifier_ops_template = {
+ .family = AF_INET6,
+ .fib_seq_read = fib6_seq_read,
+ .fib_dump = fib6_dump,
+ .owner = THIS_MODULE,
+};
+
+int __net_init fib6_notifier_init(struct net *net)
+{
+ struct fib_notifier_ops *ops;
+
+ ops = fib_notifier_ops_register(&fib6_notifier_ops_template, net);
+ if (IS_ERR(ops))
+ return PTR_ERR(ops);
+ net->ipv6.notifier_ops = ops;
+
+ return 0;
+}
+
+void __net_exit fib6_notifier_exit(struct net *net)
+{
+ fib_notifier_ops_unregister(net->ipv6.notifier_ops);
+}