r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_int(r0, 0x29, 0xb, &(0x7f0000000080)=0xef, 0x4)
getsockopt$inet6_mreq(r0, 0x29, 0x6, 0x0, &(0x7f00000003c0))