r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000002b80)={0x0, 0x0, &(0x7f0000002b40)={&(0x7f0000000080)=@allocspi={0xf8, 0x16, 0x1, 0x0, 0x0, {{{@in=@local}, {@in=@local, 0x0, 0x6c}, @in6=@mcast1}, 0x0, 0xffffffff}}, 0xf8}}, 0x0)