diff options
Diffstat (limited to 'net/tap-bsd.c')
-rw-r--r-- | net/tap-bsd.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/net/tap-bsd.c b/net/tap-bsd.c new file mode 100644 index 0000000000..6940434ef5 --- /dev/null +++ b/net/tap-bsd.c @@ -0,0 +1,62 @@ +/* + * 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; +} |