POSIX PCAP: Platform agnostic MAC address discovery

include/icsneo/platform/posix/darwin/macaddr.h

@@ -0,0 +1,11 @@
+#ifndef __MACADDR_DARWIN_H_
+#define __MACADDR_DARWIN_H_
+
+#include <net/if_dl.h>
+
+#define ICSNEO_AF_MACADDR (AF_LINK)
+
+// Points towards the first byte of the MAC address, given a sockaddr*
+#define PLATFORM_MAC_FROM_SOCKADDR(SADDR) (((struct sockaddr_dl*)SADDR)->sdl_data + ((struct sockaddr_dl*)SADDR)->sdl_nlen)
+
+#endif

include/icsneo/platform/posix/linux/macaddr.h

@@ -0,0 +1,11 @@
+#ifndef __MACADDR_LINUX_H_
+#define __MACADDR_LINUX_H_
+
+#include <netpacket/packet.h>
+
+#define ICSNEO_AF_MACADDR (AF_PACKET)
+
+// Points towards the first byte of the MAC address, given a sockaddr*
+#define PLATFORM_MAC_FROM_SOCKADDR(SADDR) (((struct sockaddr_ll*)SADDR)->sll_addr)
+
+#endif

include/icsneo/platform/posix/macaddr.h

@@ -0,0 +1,10 @@
+#ifndef __MACADDR_POSIX_H_
+#define __MACADDR_POSIX_H_
+
+#ifdef __APPLE__
+#include "icsneo/platform/posix/darwin/macaddr.h"
+#else
+#include "icsneo/platform/posix/linux/macaddr.h"
+#endif
+
+#endif