#ifdef __KERNEL__
#include <linux/skbuff.h>
+#include <linux/timer.h>
#include <linux/in.h>
extern int sysctl_igmp_max_memberships;
extern void ip_mc_down(struct in_device *);
extern void ip_mc_dec_group(struct in_device *in_dev, __be32 addr);
extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr);
+extern void ip_mc_rejoin_group(struct ip_mc_list *im);
+
#endif
#endif