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-rw-r--r--inet/netinet/in.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index 9efa5fc0f6..fa4e016635 100644
--- a/inet/netinet/in.h
+++ b/inet/netinet/in.h
@@ -166,6 +166,11 @@ struct sockaddr_in
#define IP_RECVRETOPTS 6 /* bool; Receive IP options for response. */
#define IP_RECVDSTADDR 7 /* bool; Receive IP dst addr w/datagram. */
#define IP_RETOPTS 8 /* ip_opts; Set/get IP per-packet options. */
+#define IP_MULTICAST_TTL 9 /* int; TTL for multicast packets */
+#define IP_MULTICAST_LOOP 10 /* bool; Use loopback for multicast */
+#define IP_MULTICAST_IF 11 /* not used; intended to specify interface */
+#define IP_ADD_MEMBERSHIP 12 /* int; join multicast group */
+#define IP_DROP_MEMBERSHIP 13 /* int; leave multicast group */
/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
The `ip_dst' field is used for the first-hop gateway when using a