Merge branch 'upstream-merge'
[qemu-kvm.git] / net / tap.h
blob0fb018c4b7c3854343b71470532c9c94230738fe
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2009 Red Hat, Inc.
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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.
26 #ifndef QEMU_NET_TAP_H
27 #define QEMU_NET_TAP_H
29 #include "qemu-common.h"
30 #include "qapi-types.h"
32 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
33 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
35 int net_init_tap(const NetClientOptions *opts, const char *name,
36 NetClientState *peer);
38 int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required);
40 ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen);
42 int tap_has_ufo(NetClientState *nc);
43 int tap_has_vnet_hdr(NetClientState *nc);
44 int tap_has_vnet_hdr_len(NetClientState *nc, int len);
45 void tap_using_vnet_hdr(NetClientState *nc, int using_vnet_hdr);
46 void tap_set_offload(NetClientState *nc, int csum, int tso4, int tso6, int ecn, int ufo);
47 void tap_set_vnet_hdr_len(NetClientState *nc, int len);
49 int tap_set_sndbuf(int fd, const NetdevTapOptions *tap);
50 int tap_probe_vnet_hdr(int fd);
51 int tap_probe_vnet_hdr_len(int fd, int len);
52 int tap_probe_has_ufo(int fd);
53 void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo);
54 void tap_fd_set_vnet_hdr_len(int fd, int len);
56 int tap_get_fd(NetClientState *nc);
58 struct vhost_net;
59 struct vhost_net *tap_get_vhost_net(NetClientState *nc);
61 int net_init_bridge(const NetClientOptions *opts, const char *name,
62 NetClientState *peer);
64 #endif /* QEMU_NET_TAP_H */