tpacket_hdr
#define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
struct tpacket_hdr *h1;
val = sizeof(struct tpacket_hdr);
static inline int __v1_rx_kernel_ready(struct tpacket_hdr *hdr)
static inline void __v1_rx_user_ready(struct tpacket_hdr *hdr)
static inline int __v1_tx_kernel_ready(struct tpacket_hdr *hdr)
static inline void __v1_tx_user_ready(struct tpacket_hdr *hdr)
struct tpacket_hdr tp_h __aligned_tpacket;
struct sockaddr_ll s_ll __align_tpacket(sizeof(struct tpacket_hdr));
struct tpacket_hdr *header = slot;