diff options
| author | Manuel Bouyer <bouyer@netbsd.org> | 2011-08-07 09:48:59 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-08-07 09:48:59 +0000 |
| commit | 45c245bf808a48cb7c6c99aaa43d8fb9054fc84e (patch) | |
| tree | c27adf9b6ccaef0198452efa4ca2fc5c13dc1ea6 /net/tap-bsd.c | |
| parent | c7c37b5d702b7f93b03133420460970a8fa8724f (diff) | |
| download | qemu-45c245bf808a48cb7c6c99aaa43d8fb9054fc84e.tar.gz | |
Fix network interface tap backend
Fix network interface tap backend work on NetBSD.
It uses an ioctl to get the tap name.
Signed-off-by: Christoph Egger<Christoph.Egger@amd.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'net/tap-bsd.c')
| -rw-r--r-- | net/tap-bsd.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/net/tap-bsd.c b/net/tap-bsd.c index 2f3efdee03..4b6b3a41a0 100644 --- a/net/tap-bsd.c +++ b/net/tap-bsd.c @@ -28,6 +28,8 @@ #include "qemu-error.h" #ifdef __NetBSD__ +#include <sys/ioctl.h> +#include <net/if.h> #include <net/if_tap.h> #endif @@ -40,8 +42,12 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required) { int fd; +#ifdef TAPGIFNAME + struct ifreq ifr; +#else char *dev; struct stat s; +#endif #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) /* if no ifname is given, always start the search from tap0/tun0. */ @@ -77,14 +83,30 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required #else TFR(fd = open("/dev/tap", O_RDWR)); if (fd < 0) { - fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); + fprintf(stderr, + "warning: could not open /dev/tap: no virtual network emulation: %s\n", + strerror(errno)); return -1; } #endif - fstat(fd, &s); +#ifdef TAPGIFNAME + if (ioctl(fd, TAPGIFNAME, (void *)&ifr) < 0) { + fprintf(stderr, "warning: could not get tap name: %s\n", + strerror(errno)); + return -1; + } + pstrcpy(ifname, ifname_size, ifr.ifr_name); +#else + if (fstat(fd, &s) < 0) { + fprintf(stderr, + "warning: could not stat /dev/tap: no virtual network emulation: %s\n", + strerror(errno)); + return -1; + } dev = devname(s.st_rdev, S_IFCHR); pstrcpy(ifname, ifname_size, dev); +#endif if (*vnet_hdr) { /* BSD doesn't have IFF_VNET_HDR */ |