---

yaml --- r: 103216 b: refs/heads/master c: 07240fd h: refs/heads/master v: v3
git-mirror · Jul 3, 2008 · fb659e6 · fb659e6
1 parent 07dc556
commit fb659e6
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 44d28ab19c64d095314ac66f765d0c747519f4ed
+refs/heads/master: 07240fd0902c872f044f523893364a1a24c9f278
diff --git a/trunk/drivers/net/tun.c b/trunk/drivers/net/tun.c
@@ -640,6 +640,14 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file,
 		return 0;
 	}
 
+	if (cmd == TUNGETFEATURES) {
+		/* Currently this just means: "what IFF flags are valid?".
+		 * This is needed because we never checked for invalid flags on
+		 * TUNSETIFF. */
+		return put_user(IFF_TUN | IFF_TAP | IFF_NO_PI | IFF_ONE_QUEUE,
+				(unsigned int __user*)argp);
+	}
+
 	if (!tun)
 		return -EBADFD;
 

diff --git a/trunk/include/linux/if_tun.h b/trunk/include/linux/if_tun.h
@@ -40,6 +40,7 @@
 #define TUNSETOWNER   _IOW('T', 204, int)
 #define TUNSETLINK    _IOW('T', 205, int)
 #define TUNSETGROUP   _IOW('T', 206, int)
+#define TUNGETFEATURES _IOR('T', 207, unsigned int)
 
 /* TUNSETIFF ifr flags */
 #define IFF_TUN		0x0001