Archipelago » qemu

/*

 * QEMU System Emulator

 *

 * Copyright (c) 2003-2008 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "net/tap.h"

#incude "qemu-common.h"

#ifdef __NetBSD__

#include <net/if_tap.h>

#endif

#if defined(__FreeBSD__) || defined(__DragonFly__)

#include <libutil.h>

#else

#include <util.h>

#endif

#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)

#include <freebsd/stdlib.h>

#if defined(__OpenBSD__)

#include <util.h>

#endif

int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required)

{

    int fd;

    char *dev;

    struct stat s;

    TFR(fd = open("/dev/tap", O_RDWR));

    if (fd < 0) {

        fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");

        return -1;

    }

    fstat(fd, &s);

    dev = devname(s.st_rdev, S_IFCHR);

    pstrcpy(ifname, ifname_size, dev);

    fcntl(fd, F_SETFL, O_NONBLOCK);

    return fd;

}

int tap_set_sndbuf(int fd, QemuOpts *opts)

{

    return 0;

}