+struct ip_mreq_source {
+ struct in_addr imr_multiaddr;
+ struct in_addr imr_interface;
+ struct in_addr imr_sourceaddr;
+};
+
+struct ip_msfilter {
+ struct in_addr imsf_multiaddr;
+ struct in_addr imsf_interface;
+ uint32_t imsf_fmode;
+ uint32_t imsf_numsrc;
+ struct in_addr imsf_slist[1];
+};
+#define IP_MSFILTER_SIZE(numsrc) \
+ (sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
+ + (numsrc) * sizeof(struct in_addr))
+
+struct group_req {
+ uint32_t gr_interface;
+ struct sockaddr_storage gr_group;
+};
+
+struct group_source_req {
+ uint32_t gsr_interface;
+ struct sockaddr_storage gsr_group;
+ struct sockaddr_storage gsr_source;
+};
+
+struct group_filter {
+ uint32_t gf_interface;
+ struct sockaddr_storage gf_group;
+ uint32_t gf_fmode;
+ uint32_t gf_numsrc;
+ struct sockaddr_storage gf_slist[1];
+};
+#define GROUP_FILTER_SIZE(numsrc) \
+ (sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
+ + (numsrc) * sizeof(struct sockaddr_storage))
+
+struct in_pktinfo {