Implement virMacAddrIsBroadcastRaw

Add function for testing for Ethernet broadcast address

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 27eb43e74bf2370b0c815d6da3a2c8db8aefae47..6f14763e70996699c4f7fcab17aad73b4c4eac02 100644 (file)
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1326,6 +1326,7 @@ virMacAddrCompare;
 virMacAddrFormat;
 virMacAddrGenerate;
 virMacAddrGetRaw;
+virMacAddrIsBroadcastRaw;
 virMacAddrIsMulticast;
 virMacAddrIsUnicast;
 virMacAddrParse;

diff --git a/src/util/virmacaddr.c b/src/util/virmacaddr.c
index e20792711299cd3c5b92a7e1584486e47daea63d..671ba98d5204d4ac02ee3c0516d7135ad0be1573 100644 (file)
--- a/src/util/virmacaddr.c
+++ b/src/util/virmacaddr.c
@@ -30,6 +30,9 @@
 #include "virmacaddr.h"
 #include "virrandom.h"
 
+static const unsigned char virMacAddrBroadcastAddrRaw[VIR_MAC_BUFLEN] =
+    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
 /* Compare two MAC addresses, ignoring differences in case,
  * as well as leading zeros.
  */
@@ -218,3 +221,9 @@ virMacAddrIsUnicast(const virMacAddrPtr mac)
 {
     return !(mac->addr[0] & 1);
 }
+
+bool
+virMacAddrIsBroadcastRaw(const unsigned char s[VIR_MAC_BUFLEN])
+{
+    return memcmp(virMacAddrBroadcastAddrRaw, s, sizeof(*s)) == 0;
+}

diff --git a/src/util/virmacaddr.h b/src/util/virmacaddr.h
index 4c5074ce3c60dc007bd21839437560a6e66d7b3b..1a2ff74da0aec3aade92b66d9c73c79e03266f8b 100644 (file)
--- a/src/util/virmacaddr.h
+++ b/src/util/virmacaddr.h
@@ -52,4 +52,6 @@ int virMacAddrParse(const char* str,
                     virMacAddrPtr addr) ATTRIBUTE_RETURN_CHECK;
 bool virMacAddrIsUnicast(const virMacAddrPtr addr);
 bool virMacAddrIsMulticast(const virMacAddrPtr addr);
+bool virMacAddrIsBroadcastRaw(const unsigned char s[VIR_MAC_BUFLEN]);
+
 #endif /* __VIR_MACADDR_H__ */