r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000029c0)=@acquire={0x1ac, 0x17, 0x1, 0x70bd29, 0x25dfdbfc, {{@in6=@empty, 0x4d3, 0x3c}, @in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, {@in=@empty, @in6=@mcast1, 0x4e21, 0x3, 0x4e20, 0x6, 0x2, 0x20, 0x0, 0x87, 0x0, 0xffffffffffffffff}, {{@in=@multicast1, @in=@local, 0x4e22, 0x8000, 0x4e23, 0xfff9, 0x2, 0x20, 0x20, 0x3b}, {0x4, 0x3ff, 0x6, 0x401, 0xfffffffffffffffd, 0x8, 0x4, 0x2}, {0x8, 0xffffffffffffffff, 0xa, 0xf}, 0xf, 0x0, 0x1, 0x0, 0x2, 0x1}, 0x10001, 0x1c, 0x3ff, 0x70bd25}, [@tmpl={0x84, 0x5, [{{@in6=@remote, 0x4d3, 0x32}, 0x2, @in6=@mcast1, 0x3502, 0x0, 0x1, 0x7, 0x7, 0x1, 0x4}, {{@in6=@ipv4={'\x00', '\xff\xff', @loopback}, 0x4d4, 0x33}, 0xa, @in6=@dev={0xfe, 0x80, '\x00', 0x31}, 0x3505, 0x4, 0x2, 0x0, 0x80000001, 0x8736, 0x8}]}]}, 0x1ac}, 0x1, 0x0, 0x0, 0x10}, 0x4000004)