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
Start2023/02/03 01:00:14
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

01:00:14Start

== create an IPv6 socket ==
01:00:15socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
01:00:15return sockfd=4

== set IPV6_MULTICAST_IF to lo ==
01:00:15if_nametoindex(ifname:"lo")
01:00:15return 1
01:00:15setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278ce0, optlen:4)
01:00:15return 0

== get the value of IPV6_MULTICAST_IF option ==
01:00:15getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278cdc, optlen:0x3ffda278cd8)
01:00:15return mcast_if=1

== set IPV6_MULTICAST_IF to Link0 ==
01:00:15if_nametoindex(ifname:"dummy_ipv6")
01:00:15return 3
01:00:15setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278ce0, optlen:4)
01:00:15return 0

== get the value of IPV6_MULTICAST_IF option ==
01:00:15getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278cdc, optlen:0x3ffda278cd8)
01:00:15return mcast_if=3

== set IPV6_MULTICAST_IF to not exists interface ==
01:00:15setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278cdc, optlen:4)
01:00:15return error ENODEV

== get the value of IPV6_MULTICAST_IF option ==
01:00:15getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278cdc, optlen:0x3ffda278cd8)
01:00:15return mcast_if=3

== set IPV6_MULTICAST_IF to 0 ==
01:00:15setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278ce0, optlen:4)
01:00:15return 0

== get the value of IPV6_MULTICAST_IF option ==
01:00:15getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_MULTICAST_IF, optval:0x3ffda278cdc, optlen:0x3ffda278cd8)
01:00:15return mcast_if=0

OK
01:00:15End