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
Start2023/01/26 16:32:09
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

16:32:09Start

== create an IPv6 socket ==
16:32:10socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
16:32:10return sockfd=4
16:32:11tst_get_unused_port() get port 38855

== bind socket to address ==
16:32:11bind(sockfd:4, my_addr:0x3ffee9f8524, addrlen:28)
16:32:11return 0

== join to a multicast group on Link0 ==
16:32:11if_nametoindex(ifname:"dummy_ipv6")
16:32:11return 125
16:32:11inet_pton(af:AF_INET6, src:"ff03::1:ff00:100", dst:0x3ffee9f8540)
16:32:11return 1, dst=ff03:0000:0000:0000:0000:0001:ff00:0100
16:32:11setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_JOIN_GROUP, optval:0x3ffee9f8540, optlen:20)
16:32:11return 0

== set IPV6_MULTICAST_IF option to Link0 ==
16:32:11setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffee9f8408, optlen:4)
16:32:11return 0

== enabled IPV6_MULTICAST_LOOP option ==
16:32:11setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_LOOP, optval:0x3ffee9f840c, optlen:4)
16:32:11return 0
16:32:11inet_pton(af:AF_INET6, src:"ff03::1:ff00:100", dst:0x3ffee9f8540)
16:32:11return 1, dst=ff03:0000:0000:0000:0000:0001:ff00:0100

== send multicast datagram to the group ==
16:32:11sendto(sockfd:4, buf:0x1007cc0, len:17, flags:0, to:0x3ffee9f8524, tolen:28)
16:32:11return 17

== recv message from the group ==
16:32:11recvmsg(sockfd:4, msg:0x3ffee9f84d8, flags:64)
16:32:11return 17
16:32:11close(4)

OK
16:32:11End