root / net / tap-bsd.c @ dc69004c
History | View | Annotate | Download (2 kB)
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 "net/tap.h" |
26 |
#incude "qemu-common.h" |
27 |
|
28 |
#ifdef __NetBSD__
|
29 |
#include <net/if_tap.h> |
30 |
#endif
|
31 |
|
32 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
33 |
#include <libutil.h> |
34 |
#else
|
35 |
#include <util.h> |
36 |
#endif
|
37 |
#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
|
38 |
#include <freebsd/stdlib.h> |
39 |
|
40 |
#if defined(__OpenBSD__)
|
41 |
#include <util.h> |
42 |
#endif
|
43 |
|
44 |
int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required) |
45 |
{ |
46 |
int fd;
|
47 |
char *dev;
|
48 |
struct stat s;
|
49 |
|
50 |
TFR(fd = open("/dev/tap", O_RDWR));
|
51 |
if (fd < 0) { |
52 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
53 |
return -1; |
54 |
} |
55 |
|
56 |
fstat(fd, &s); |
57 |
dev = devname(s.st_rdev, S_IFCHR); |
58 |
pstrcpy(ifname, ifname_size, dev); |
59 |
|
60 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
61 |
return fd;
|
62 |
} |
63 |
|
64 |
int tap_set_sndbuf(int fd, QemuOpts *opts) |
65 |
{ |
66 |
return 0; |
67 |
} |
68 |
|
69 |
int tap_probe_vnet_hdr(int fd) |
70 |
{ |
71 |
return 0; |
72 |
} |