bfdd: fix version bits check.

The version of bfd pkt is represented by 3 bits in B[0].
Signed-off-by: zmw12306 <zmw12306@gmail.com>
(cherry picked from commit 3f658e8b1cfc82e1644cc36fcbc1554c70f558d0)

diff --git a/bfdd/bfd.h b/bfdd/bfd.h
index 69529aba171a901682aa7279e6587f2d6a528344..6c5a1e921618a755461cbc672adb2372f270e94c 100644 (file)
--- a/bfdd/bfd.h
+++ b/bfdd/bfd.h
@@ -93,7 +93,7 @@ struct bfd_echo_pkt {
 
 
 /* Macros for manipulating control packets */
-#define BFD_VERMASK 0x03
+#define BFD_VERMASK 0x07
 #define BFD_DIAGMASK 0x1F
 #define BFD_GETVER(diag) ((diag >> 5) & BFD_VERMASK)
 #define BFD_SETVER(diag, val) ((diag) |= (val & BFD_VERMASK) << 5)