I've attached diff that includes the following changes for NetBSD:
(1) Teach OpenVPN about NetBSD's tap(4) driver.
(syshead.h, tun.c, config.h.in)
(2) Fix header detection for <net/if.h> and <net/if_ether.h> in the
aftermath of the FreeBSD autoconf changes. These changes should
be neutral for FreeBSD but are necessary for NetBSD.
(configure.ac)
I hope that these changes will make it into the OpenVPN 2.1 release.
Cheers,
-- Johnny Lam <[email protected]>
--- syshead.h.orig 2007-04-25 17:38:46.000000000 -0400
+++ syshead.h
@@ -262,6 +262,10 @@
#ifdef TARGET_NETBSD
+#ifdef HAVE_NET_IF_TAP_H
+#include <net/if_tap.h>
+#endif
+
#ifdef HAVE_NET_IF_TUN_H
#include <net/if_tun.h>
#endif
--- tun.c.orig 2006-10-15 23:30:20.000000000 +0100
+++ tun.c 2007-02-12 10:52:42.000000000 +0000
@@ -945,7 +945,37 @@
if (dynamic && !has_digit((unsigned char *)dev))
{
int i;
- for (i = 0; i < 256; ++i)
+#if defined(TAPGIFNAME)
+ /*
+ * Perhaps we have a cloning device. Try opening
+ * the device without any appended digits,
+ * and use ioctl(,TAPGIFNAME,) to get the resulting
+ * interface name.
+ */
+ openvpn_snprintf (tunname, sizeof (tunname), "/dev/%s", dev);
+ if ((tt->fd = open (tunname, O_RDWR)) > 0)
+ {
+ struct ifreq ifr;
+ if (ioctl (tt->fd, TAPGIFNAME, (void*)&ifr) < 0)
+ {
+ msg (D_READ_WRITE | M_ERRNO,
+ "ioctl(,TAPGIFNAME,) failed for %s", tunname);
+ close(tt->fd);
+ }
+ else
+ {
+ strlcpy (dynamic_name, ifr.ifr_name,
+ sizeof (dynamic_name));
+ dynamic_opened = true;
+ msg (M_INFO, "TUN/TAP dynamic interface %s opened",
+ dynamic_name);
+ }
+ }
+ if (!dynamic_opened)
+ msg (D_READ_WRITE | M_ERRNO, "Tried opening %s (failed)",
+ tunname);
+#endif /* TAPGIFNAME */
+ for (i = 0; i < 256 && !dynamic_opened; ++i)
{
openvpn_snprintf (tunname, sizeof (tunname),
"/dev/%s%d", dev, i);
--- config.h.in.orig 2007-04-25 19:54:40.000000000 -0400
+++ config.h.in
@@ -216,6 +216,9 @@
/* Define to 1 if you have the <net/if.h> header file. */
#undef HAVE_NET_IF_H
+/* Define to 1 if you have the <net/if_tap.h> header file. */
+#undef HAVE_NET_IF_TAP_H
+
/* Define to 1 if you have the <net/if_tun.h> header file. */
#undef HAVE_NET_IF_TUN_H
--- configure.ac.orig 2007-04-25 17:38:46.000000000 -0400
+++ configure.ac
@@ -285,14 +285,17 @@ AC_CHECK_HEADERS(sys/time.h sys/socket.h
sys/mman.h fcntl.h sys/file.h stdlib.h stdint.h dnl
stdarg.h unistd.h signal.h stdio.h string.h dnl
strings.h ctype.h errno.h syslog.h pwd.h grp.h dnl
- net/if_tun.h stropts.h sys/sockio.h dnl
+ net/if_tap.h net/if_tun.h stropts.h sys/sockio.h dnl
netinet/in.h netinet/in_systm.h dnl
netinet/tcp.h arpa/inet.h dnl
netdb.h sys/uio.h linux/if_tun.h linux/sockios.h dnl
linux/types.h sys/poll.h sys/epoll.h err.h dnl
)
AC_CHECK_HEADERS(net/if.h,,,
- [#ifdef HAVE_SYS_SOCKET_H
+ [#ifdef HAVE_SYS_TYPES_H
+ # include <sys/types.h>
+ #endif
+ #ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
@@ -314,6 +317,9 @@ AC_CHECK_HEADERS(netinet/if_ether.h,,,
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
+ #ifdef HAVE_NET_IF_H
+ # include <net/if.h>
+ #endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
