From 70b82e9a450dacd0d4092d15e67a9d0a6c466f6c Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Wed, 4 Mar 2009 17:01:56 +0000
Subject: fixes for FreeBSD

---
 src/bsd/tun.c | 34 +++++++++++++++++++++++++---------
 src/configure |  8 ++++----
 2 files changed, 29 insertions(+), 13 deletions(-)

(limited to 'src')

diff --git a/src/bsd/tun.c b/src/bsd/tun.c
index d5697c5..ed3eb27 100644
--- a/src/bsd/tun.c
+++ b/src/bsd/tun.c
@@ -164,8 +164,8 @@ int tun_init_post(tun_device_t* dev)
   
   struct tuninfo ti;  
 
-  if (ioctl(dev->fd_, TUNGIFINFO, &ti) < 0) {
-    log_printf(ERROR, "can't enable multicast for interface");
+  if(ioctl(dev->fd_, TUNGIFINFO, &ti) < 0) {
+    log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
     return -1;
   }  
 
@@ -173,15 +173,15 @@ int tun_init_post(tun_device_t* dev)
   if(dev->type_ == TYPE_TUN)
     ti.flags &= ~IFF_POINTOPOINT;
   
-  if (ioctl(dev->fd_, TUNSIFINFO, &ti) < 0) {
-    log_printf(ERROR, "can't enable multicast for interface");
+  if(ioctl(dev->fd_, TUNSIFINFO, &ti) < 0) {
+    log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
     return -1;
   }
   return 0;
 }
 
 #elif defined(__GNUC__) && defined(__FreeBSD__)
- #warning this device has never been tested on FreeBSD and might not work
+
 int tun_init_post(tun_device_t* dev)
 {
   if(!dev)
@@ -191,10 +191,26 @@ int tun_init_post(tun_device_t* dev)
   if(dev->type_ == TYPE_TAP)
     dev->with_pi_ = 0;
 
-  int arg = 0;
-  ioctl(dev->fd_, TUNSLMODE, &arg);
-  arg = 1;
-  ioctl(dev->fd_, TUNSIFHEAD, &arg);
+  if(dev->type_ == TYPE_TUN) {
+    int arg = 0;
+    if(ioctl(dev->fd_, TUNSLMODE, &arg) < 0) {
+      log_printf(ERROR, "can't disable link-layer mode for interface: %s", strerror(errno));
+      return -1;
+    }  
+
+    arg = 1;
+    if(ioctl(dev->fd_, TUNSIFHEAD, &arg) < 0) {
+      log_printf(ERROR, "can't enable multi-af mode for interface: %s", strerror(errno));
+      return -1;
+    }  
+
+    arg = IFF_BROADCAST;
+    arg |= IFF_MULTICAST;
+    if(ioctl(dev->fd_, TUNSIFMODE, &arg) < 0) {
+      log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
+      return -1;
+    }  
+  }
 
   return 0;
 }
diff --git a/src/configure b/src/configure
index 9d13a5b..d88e333 100755
--- a/src/configure
+++ b/src/configure
@@ -92,7 +92,7 @@ do
     V4_MAPPED=0 
   ;; 
   --enable-v4-mapped)
-    V4_MAPPED=1 
+    V4_MAPPED=2
   ;; 
   --help)
     print_usage
@@ -109,17 +109,17 @@ done
 rm -f include.mk
 case $TARGET in 
   Linux)
-    rm -rf tun.c
+    rm -f tun.c
     ln -sf linux/tun.c
     echo "loading Linux specific TUN Device"
   ;;
   OpenBSD|FreeBSD|NetBSD)
-    rm -rf tun.c
+    rm -f tun.c
     ln -sf bsd/tun.c
     echo "loading BSD specific TUN Device"
     CFLAGS=$CFLAGS' -I/usr/local/include'
     LDFLAGS=$LDFLAGS' -L/usr/local/lib'
-    if [ "x$TARGET" = "xOpenBSD" ]; then
+    if [ $V4_MAPPED -ne 2 ]; then
       V4_MAPPED=0
     fi
   ;;
-- 
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