r0 = socket$inet_tcp(0x2, 0x1, 0x0)
ioctl$sock_SIOCADDRT(r0, 0x890b, &(0x7f00000002c0)={0x0, @in={0x2, 0x0, @dev}, @nfc, @nl, 0x6, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000280)='ip6gre0\x00'})