ip_msfilter 119 include/linux/igmp.h extern int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf,int ifindex); ip_msfilter 120 include/linux/igmp.h extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf, ip_msfilter 121 include/linux/igmp.h struct ip_msfilter __user *optval, int __user *optlen); ip_msfilter 183 include/uapi/linux/in.h (sizeof(struct ip_msfilter) - sizeof(__u32) \