Test Information

TitleA copy is looped back if the IPV6_MULTICAST_LOOP option is set to 1
CommandLine./tst_mcast_loop_back --log=13.html --title=A copy is looped back if the IPV6_MULTICAST_LOOP option is set to 1
TestVersionREL_1_1_18
Start2023/02/03 01:00:18
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

01:00:18Start

== create an IPv6 socket ==
01:00:19socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
01:00:19return sockfd=4
01:00:20tst_get_unused_port() get port 50322

== bind socket to address ==
01:00:20bind(sockfd:4, my_addr:0x3ffcef788b4, addrlen:28)
01:00:20return 0

== join to a multicast group on Link0 ==
01:00:20if_nametoindex(ifname:"dummy_ipv6")
01:00:20return 3
01:00:20inet_pton(af:AF_INET6, src:"ff03::1:ff00:100", dst:0x3ffcef788d0)
01:00:20return 1, dst=ff03:0000:0000:0000:0000:0001:ff00:0100
01:00:20setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_JOIN_GROUP, optval:0x3ffcef788d0, optlen:20)
01:00:20return 0

== set IPV6_MULTICAST_IF option to Link0 ==
01:00:20setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffcef78798, optlen:4)
01:00:20return 0

== enabled IPV6_MULTICAST_LOOP option ==
01:00:20setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_LOOP, optval:0x3ffcef7879c, optlen:4)
01:00:20return 0
01:00:20inet_pton(af:AF_INET6, src:"ff03::1:ff00:100", dst:0x3ffcef788d0)
01:00:20return 1, dst=ff03:0000:0000:0000:0000:0001:ff00:0100

== send multicast datagram to the group ==
01:00:20sendto(sockfd:4, buf:0x1007cc0, len:17, flags:0, to:0x3ffcef788b4, tolen:28)
01:00:20return 17

== recv message from the group ==
01:00:20recvmsg(sockfd:4, msg:0x3ffcef78868, flags:64)
01:00:20return 17
01:00:20close(4)

OK
01:00:20End