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Implement virMacAddrIsBroadcastRaw

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Add function for testing for Ethernet broadcast address
This commit is contained in:
Stefan Berger 2012-08-30 14:29:49 -04:00 committed by Daniel Veillard
parent 7b9d55e629
commit 46b2cafb25
3 changed files with 12 additions and 0 deletions
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1
src/libvirt_private.syms
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@ -1326,6 +1326,7 @@ virMacAddrCompare;
virMacAddrFormat; virMacAddrFormat;
virMacAddrGenerate; virMacAddrGenerate;
virMacAddrGetRaw; virMacAddrGetRaw;
virMacAddrIsBroadcastRaw;
virMacAddrIsMulticast; virMacAddrIsMulticast;
virMacAddrIsUnicast; virMacAddrIsUnicast;
virMacAddrParse; virMacAddrParse;

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

2
src/util/virmacaddr.h
View File

@ -52,4 +52,6 @@ int virMacAddrParse(const char* str,
virMacAddrPtr addr) ATTRIBUTE_RETURN_CHECK; virMacAddrPtr addr) ATTRIBUTE_RETURN_CHECK;
bool virMacAddrIsUnicast(const virMacAddrPtr addr); bool virMacAddrIsUnicast(const virMacAddrPtr addr);
bool virMacAddrIsMulticast(const virMacAddrPtr addr); bool virMacAddrIsMulticast(const virMacAddrPtr addr);
bool virMacAddrIsBroadcastRaw(const unsigned char s[VIR_MAC_BUFLEN]);
#endif /* __VIR_MACADDR_H__ */ #endif /* __VIR_MACADDR_H__ */