Test Information

TitleReceiving interface index when the IPV6_RECVPKTINFO socket option is enabled
CommandLine./tst_recv_ifindex_udp --log=2.html --title=Receiving interface index when the IPV6_RECVPKTINFO socket option is enabled
TestVersionREL_1_1_18
Start2023/02/03 01:01:01
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

01:01:01Start

== create an IPv6/UDP socket ==
01:01:01socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
01:01:01return sockfd=4
01:01:02tst_get_unused_port() get port 51126

== set IPV6_RECVPKTINFO to 1 ==
01:01:02setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_RECVPKTINFO, optval:0x3ffe3ff8aa4, optlen:4)
01:01:02return 0

== bind socket to address ==
01:01:02bind(sockfd:4, my_addr:0x3ffe3ff8b84, addrlen:28)
01:01:02return 0

== send message to itself ==
01:01:03sendto(sockfd:4, buf:0x1007e00, len:17, flags:0, to:0x3ffe3ff8b84, tolen:28)
01:01:03return 17

== recv message ==
01:01:03recvmsg(sockfd:4, msg:0x3ffe3ff8b38, flags:0)
01:01:03return 17
01:01:03if_nametoindex(ifname:"lo")
01:01:03return 1

the received interface index = 1, length = 36
01:01:03close(4)

OK
01:01:03End