Test Information

TitleReceiving the Hop Limit when the IPV6_RECVHOPLIMIT socket option is enabled
CommandLine./tst_recv_hop_limit_udp --log=8.html --title=Receiving the Hop Limit when the IPV6_RECVHOPLIMIT socket option is enabled
TestVersionREL_1_1_18
Start2023/01/17 08:41:16
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

08:41:16Start

== create an IPv6/UDP socket ==
08:41:16socket(domain:AF_INET6, type:SOCK_DGRAM, protocol:0)
08:41:16return sockfd=4
08:41:17tst_get_unused_port() get port 41077

== set hoplimit of socket to 64 ==
08:41:17setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7fff5eb2e9a8, optlen:4)
08:41:17return 0

== set IPV6_RECVHOPLIMIT to 1 ==
08:41:17setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_RECVHOPLIMIT, optval:0x7fff5eb2e9ac, optlen:4)
08:41:17return 0

== bind socket to address ==
08:41:17bind(sockfd:4, my_addr:0x7fff5eb2ea90, addrlen:28)
08:41:17return 0

== send message to itself ==
08:41:17sendto(sockfd:4, buf:0x407010, len:17, flags:0, to:0x7fff5eb2ea90, tolen:28)
08:41:17return 17

== recv one message ==
08:41:18recvmsg(sockfd:4, msg:0x7fff5eb2ea40, flags:0)
08:41:18return 17

the received hop limit = 64, length = 20
08:41:18close(4)

OK
08:41:18End