Test Information

TitleGet the interface to use for outgoing multicast packets from kernel
CommandLine./tst_mcast_if_get --log=7.html --title=Get the interface to use for outgoing multicast packets from kernel
TestVersionREL_1_1_18
Start2023/01/17 08:40:16
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

08:40:16Start

== create an IPv6 socket ==
08:40:16socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
08:40:16return sockfd=4

== set IPV6_MULTICAST_IF to lo ==
08:40:16if_nametoindex(ifname:"lo")
08:40:16return 1
08:40:16setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127528, optlen:4)
08:40:16return 0

== get the value of IPV6_MULTICAST_IF option ==
08:40:16getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127524, optlen:0x7ffdb1127520)
08:40:16return mcast_if=1

== set IPV6_MULTICAST_IF to Link0 ==
08:40:16if_nametoindex(ifname:"dummy_ipv6")
08:40:16return 106
08:40:16setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127528, optlen:4)
08:40:16return 0

== get the value of IPV6_MULTICAST_IF option ==
08:40:16getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127524, optlen:0x7ffdb1127520)
08:40:16return mcast_if=106

== set IPV6_MULTICAST_IF to not exists interface ==
08:40:16setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127524, optlen:4)
08:40:16return error ENODEV

== get the value of IPV6_MULTICAST_IF option ==
08:40:16getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127524, optlen:0x7ffdb1127520)
08:40:16return mcast_if=106

== set IPV6_MULTICAST_IF to 0 ==
08:40:17setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127528, optlen:4)
08:40:17return 0

== get the value of IPV6_MULTICAST_IF option ==
08:40:17getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x7ffdb1127524, optlen:0x7ffdb1127520)
08:40:17return mcast_if=0

OK
08:40:17End