xref: /openbmc/qemu/net/tap_int.h (revision 50a92d9b)
1  /*
2   * QEMU System Emulator
3   *
4   * Copyright (c) 2003-2008 Fabrice Bellard
5   * Copyright (c) 2009 Red Hat, Inc.
6   *
7   * Permission is hereby granted, free of charge, to any person obtaining a copy
8   * of this software and associated documentation files (the "Software"), to deal
9   * in the Software without restriction, including without limitation the rights
10   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11   * copies of the Software, and to permit persons to whom the Software is
12   * furnished to do so, subject to the following conditions:
13   *
14   * The above copyright notice and this permission notice shall be included in
15   * all copies or substantial portions of the Software.
16   *
17   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23   * THE SOFTWARE.
24   */
25  
26  #ifndef NET_TAP_INT_H
27  #define NET_TAP_INT_H
28  
29  #include "qapi/qapi-types-net.h"
30  
31  int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
32               int vnet_hdr_required, int mq_required, Error **errp);
33  
34  ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen);
35  
36  void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp);
37  int tap_probe_vnet_hdr(int fd, Error **errp);
38  int tap_probe_has_ufo(int fd);
39  int tap_probe_has_uso(int fd);
40  void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo,
41                          int uso4, int uso6);
42  void tap_fd_set_vnet_hdr_len(int fd, int len);
43  int tap_fd_set_vnet_le(int fd, int vnet_is_le);
44  int tap_fd_set_vnet_be(int fd, int vnet_is_be);
45  int tap_fd_enable(int fd);
46  int tap_fd_disable(int fd);
47  int tap_fd_get_ifname(int fd, char *ifname);
48  int tap_fd_set_steering_ebpf(int fd, int prog_fd);
49  
50  #endif /* NET_TAP_INT_H */
51