r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f00000001c0)={{{@in6=@mcast2, @in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0xa, 0xa0, 0x0, 0x0, 0x0, 0xffffffffffffffff}}, {{@in6=@loopback}, 0x0, @in6=@mcast1}}, 0xe8)