51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "system.h"
+
#ifndef ETH_ALEN
#define ETH_ALEN 6
#endif
#endif
#ifndef HAVE_STRUCT_ETHER_HEADER
-struct ether_header {
+PACKED(struct ether_header {
uint8_t ether_dhost[ETH_ALEN];
uint8_t ether_shost[ETH_ALEN];
uint16_t ether_type;
-} __attribute__ ((__gcc_struct__, __packed__));
+});
#endif
+STATIC_ASSERT(sizeof(struct ether_header) == 14, "ether_header has incorrect size");
+
#ifndef HAVE_STRUCT_ARPHDR
-struct arphdr {
+PACKED(struct arphdr {
uint16_t ar_hrd;
uint16_t ar_pro;
uint8_t ar_hln;
uint8_t ar_pln;
uint16_t ar_op;
-} __attribute__ ((__gcc_struct__, __packed__));
-
+});
#define ARPOP_REQUEST 1
#define ARPOP_REPLY 2
#define ARPOP_RREQUEST 3
#define ARPOP_NAK 10
#endif
+STATIC_ASSERT(sizeof(struct arphdr) == 8, "arphdr has incorrect size");
+
#ifndef HAVE_STRUCT_ETHER_ARP
-struct ether_arp {
+PACKED(struct ether_arp {
struct arphdr ea_hdr;
uint8_t arp_sha[ETH_ALEN];
uint8_t arp_spa[4];
uint8_t arp_tha[ETH_ALEN];
uint8_t arp_tpa[4];
-} __attribute__ ((__gcc_struct__, __packed__));
+});
#define arp_hrd ea_hdr.ar_hrd
#define arp_pro ea_hdr.ar_pro
#define arp_hln ea_hdr.ar_hln
#define arp_op ea_hdr.ar_op
#endif
+STATIC_ASSERT(sizeof(struct ether_arp) == 28, "ether_arp has incorrect size");
+
#endif