r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f00000000c0)={@in6={{0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @private}}}, 0x0, 0x0, 0x0, 0x0, "533fab98f472fdd5b2fd77972595d3b9d8ac49627af48934e0db618665cb754aa10165d5fb511f49efc98c4e29f141de2bbc140e950f6b13e12f11c02c6dd0492bc0053db1769159d20a2e953b774f99"}, 0xd8)