qdev: remove baked in notion of aliases (v2)
[qemu.git] / net / tap.h
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 QEMU_NET_TAP_H
27 #define QEMU_NET_TAP_H
28
29 #include "qemu-common.h"
30 #include "qemu-option.h"
31
32 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
33 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
34
35 int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan);
36
37 int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required);
38
39 ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen);
40
41 int tap_has_ufo(VLANClientState *vc);
42 int tap_has_vnet_hdr(VLANClientState *vc);
43 int tap_has_vnet_hdr_len(VLANClientState *vc, int len);
44 void tap_using_vnet_hdr(VLANClientState *vc, int using_vnet_hdr);
45 void tap_set_offload(VLANClientState *vc, int csum, int tso4, int tso6, int ecn, int ufo);
46 void tap_set_vnet_hdr_len(VLANClientState *vc, int len);
47
48 int tap_set_sndbuf(int fd, QemuOpts *opts);
49 int tap_probe_vnet_hdr(int fd);
50 int tap_probe_vnet_hdr_len(int fd, int len);
51 int tap_probe_has_ufo(int fd);
52 void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo);
53 void tap_fd_set_vnet_hdr_len(int fd, int len);
54
55 int tap_get_fd(VLANClientState *vc);
56
57 struct vhost_net;
58 struct vhost_net *tap_get_vhost_net(VLANClientState *vc);
59
60 int net_init_bridge(QemuOpts *opts, Monitor *mon, const char *name,
61 VLANState *vlan);
62
63 #endif /* QEMU_NET_TAP_H */