r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000580)={&(0x7f0000000940)=@updsa={0xf8, 0x16, 0x1, 0x0, 0x0, {{@in6=@remote, @in6=@loopback}, {@in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x32}, @in6=@mcast2}, [@tfcpad={0x8}]}, 0xf8}}, 0x0)