r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000580)={&(0x7f0000000940)=@updsa={0x140, 0x1a, 0x1, 0x0, 0x0, {{@in6=@private0, @in6=@loopback}, {@in, 0x0, 0x33}, @in6=@mcast2, {}, {}, {}, 0x0, 0x0, 0xa}, [@tfcpad={0x8}, @algo_auth={0x48, 0x1, {{'sha224-ni\x00'}}}]}, 0x140}}, 0x0)