r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f0000000340)={@in6={{0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @multicast1}}}, 0x0, 0x0, 0x0, 0x0, "9bd7e83af20ad4a1e543e465c578225a2f2da2d5047b4b90c5bab0a2d1052ae0082b279da1607f2ab41180238b8494695c64faf03c09df93d0b0ee632e36a153b187e13c354d79c77087ee89b99fd2df"}, 0xd8)