Test Information

TitleReceiving the Hop Limit (TCP socket)
CommandLine./tst_recv_hop_limit_tcp --log=7.html --title=Receiving the Hop Limit (TCP socket)
TestVersionREL_1_1_18
Start2023/01/17 08:41:14
SystemName(null)
KernelVersion(null)

Test Sequence Execution Log

08:41:14Start

== create tcp socket for tcp server ==
08:41:14socket(domain:AF_INET6, type:SOCK_STREAM, protocol:0)
08:41:14return sockfd=4

== create tcp socket for tcp client ==
08:41:14socket(domain:AF_INET6, type:SOCK_STREAM, protocol:0)
08:41:14return sockfd=5

== set hoplimit of tcp server to 255 ==
08:41:14setsockopt(sockfd:4, level:IPPROTO_IPV6, optname:IPV6_UNICAST_HOPS, optval:0x7fffad964bd8, optlen:4)
08:41:14return 0

== enable tcp client to receive hop limit ==
08:41:14setsockopt(sockfd:5, level:IPPROTO_IPV6, optname:IPV6_RECVHOPLIMIT, optval:0x7fffad964bdc, optlen:4)
08:41:14return 0

== bind tcp server socket to address ==
08:41:15tst_get_unused_port() get port 42163
08:41:15bind(sockfd:4, my_addr:0x7fffad964c90, addrlen:28)
08:41:15return 0

== listen on tcp server socket ==
08:41:15listen(sockfd:4, backlog:100)
08:41:15return 0

== connect to tcp server ==
08:41:15connect(sockfd:5, serv_addr:0x7fffad964c90, addrlen:28)
08:41:15return 0

== accept a connection on tcp socket ==
08:41:15accept(sockfd:4, addr:0x7fffad964c90, addrlen:0x7fffad964bd4)
08:41:15return 6

== send message from tcp server to tcp client ==
08:41:16send(sockfd:6, buf:0x7fffad964be0, len:17, flags:0)
08:41:16return 17

== recv message from tcp server on tcp client ==
08:41:16recv(sockfd:5, buf:0x7fffad964c00, len:100, flags:0)
08:41:16return 17

== get IPV6_2292PKTOPTIONS of tcp client ==
08:41:16getsockopt(sockfd:5, level:IPPROTO_IPV6, optname:IPV6_2292PKTOPTIONS, optval:0x7fffad964c70, optlen:0x7fffad964bd0)
08:41:16return length 24

the received hop limit = 255, length = 20
08:41:16close(5)
08:41:16close(6)
08:41:16close(4)

OK
08:41:16End