r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000002e00)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000200)=@updsa={0x1a8, 0x1a, 0x1, 0x0, 0x0, {{@in6=@mcast1, @in=@loopback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff}, {@in=@dev, 0x0, 0x32}, @in=@multicast1, {}, {}, {}, 0x0, 0x0, 0xa}, [@algo_crypt={0x48, 0x2, {{'cbc(aes)\x00'}}}, @algo_auth_trunc={0x6d, 0x14, {{'cmac(aes)\x00'}, 0x108, 0x0, "0a4da76453c75c99b2000000000000000901618e8ec5f7479630e2463e8179a1b0"}}]}, 0x1a8}}, 0x0)