xref: /openbmc/qemu/net/tap-stub.c (revision b4b9a0e3)
1  /*
2   * QEMU System Emulator
3   *
4   * Copyright (c) 2003-2008 Fabrice Bellard
5   *
6   * Permission is hereby granted, free of charge, to any person obtaining a copy
7   * of this software and associated documentation files (the "Software"), to deal
8   * in the Software without restriction, including without limitation the rights
9   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10   * copies of the Software, and to permit persons to whom the Software is
11   * furnished to do so, subject to the following conditions:
12   *
13   * The above copyright notice and this permission notice shall be included in
14   * all copies or substantial portions of the Software.
15   *
16   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22   * THE SOFTWARE.
23   */
24  
25  #include "qemu/osdep.h"
26  #include "qapi/error.h"
27  #include "tap_int.h"
28  
29  int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
30               int vnet_hdr_required, int mq_required, Error **errp)
31  {
32      error_setg(errp, "tap is not supported in this build");
33      return -1;
34  }
35  
36  void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp)
37  {
38  }
39  
40  int tap_probe_vnet_hdr(int fd, Error **errp)
41  {
42      return 0;
43  }
44  
45  int tap_probe_has_ufo(int fd)
46  {
47      return 0;
48  }
49  
50  int tap_probe_vnet_hdr_len(int fd, int len)
51  {
52      return 0;
53  }
54  
55  void tap_fd_set_vnet_hdr_len(int fd, int len)
56  {
57  }
58  
59  int tap_fd_set_vnet_le(int fd, int is_le)
60  {
61      return -EINVAL;
62  }
63  
64  int tap_fd_set_vnet_be(int fd, int is_be)
65  {
66      return -EINVAL;
67  }
68  
69  void tap_fd_set_offload(int fd, int csum, int tso4,
70                          int tso6, int ecn, int ufo)
71  {
72  }
73  
74  int tap_fd_enable(int fd)
75  {
76      return -1;
77  }
78  
79  int tap_fd_disable(int fd)
80  {
81      return -1;
82  }
83  
84  int tap_fd_get_ifname(int fd, char *ifname)
85  {
86      return -1;
87  }
88  
89  int tap_fd_set_steering_ebpf(int fd, int prog_fd)
90  {
91      return -1;
92  }
93