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
Start2023/01/17 08:40:13
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

08:40:13Start

== create an IPv6 socket ==
08:40:13socket(domain:AF_INET6, type:SOCK_STREAM, protocol:0)
08:40:13return sockfd=4

== get default hoplimit ==
08:40:13getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7ffc96e87f04, optlen:0x7ffc96e87f00)
08:40:13return hoplimit=64

== set hoplimit to 10 ==
08:40:13setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7ffc96e87f08, optlen:4)
08:40:13return 0

== check whether hoplimit is set correctly ==
08:40:13getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7ffc96e87f08, optlen:0x7ffc96e87f00)
08:40:13return hoplimit=10

== set hoplimit to -1 ==
08:40:13setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7ffc96e87f08, optlen:4)
08:40:13return 0

== check whether hoplimit is set to kernel default value ==
08:40:13getsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7ffc96e87f08, optlen:0x7ffc96e87f00)
08:40:13return hoplimit=64

OK
08:40:13End