r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_opts(r0, 0x29, 0x48, &(0x7f00000001c0)=@srh={0x88, 0x8, 0x4, 0x4, 0x0, 0x0, 0x0, [@loopback, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @private0, @dev]}, 0x48)