Test Information

TitleUse kernel default value when the IPV6_UNICAST_HOPS option is set to -1
CommandLine./tst_hop_limit_set_to_dafault --log=2.html --title=Use kernel default value when the IPV6_UNICAST_HOPS option is set to -1
TestVersionREL_1_1_18
Start2023/02/03 01:00:11
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

01:00:11Start

== create an IPv6 socket ==
01:00:11socket(domain:AF_INET6, type:SOCK_STREAM, protocol:0)
01:00:11return sockfd=4

== get default hoplimit ==
01:00:11getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x3ffc1c793cc, optlen:0x3ffc1c793c8)
01:00:11return hoplimit=64

== set hoplimit to 10 ==
01:00:12setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x3ffc1c793d0, optlen:4)
01:00:12return 0

== check whether hoplimit is set correctly ==
01:00:12getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x3ffc1c793d0, optlen:0x3ffc1c793c8)
01:00:12return hoplimit=10

== set hoplimit to -1 ==
01:00:12setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x3ffc1c793d0, optlen:4)
01:00:12return 0

== check whether hoplimit is set to kernel default value ==
01:00:12getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x3ffc1c793d0, optlen:0x3ffc1c793c8)
01:00:12return hoplimit=64

OK
01:00:12End