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authorMark McLoughlin <markmc@redhat.com>2009-10-22 17:49:08 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2009-10-30 08:39:27 -0500
commite7e92325d92843aaa022000aacb9602d3a6ad986 (patch)
treec09fa5c69648dc1e7ed6f1dfe12871aeb3b08659 /net/tap-bsd.c
parent5281d757efa6e40d74ce124be048b08d43887555 (diff)
net: split BSD tap_open() out into net/tap-bsd.c
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'net/tap-bsd.c')
-rw-r--r--net/tap-bsd.c62
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;
+}