skbuff.h File Reference

#include <linux/kernel.h>
#include <linux/kmemcheck.h>
#include <linux/compiler.h>
#include <linux/time.h>
#include <linux/bug.h>
#include <linux/cache.h>
#include <linux/atomic.h>
#include <asm/types.h>
#include <linux/spinlock.h>
#include <linux/net.h>
#include <linux/textsearch.h>
#include <net/checksum.h>
#include <linux/rcupdate.h>
#include <linux/dmaengine.h>
#include <linux/hrtimer.h>
#include <linux/dma-mapping.h>
#include <linux/netdev_features.h>

Go to the source code of this file.

Data Structures
struct	sk_buff_head
struct	skb_frag_struct
struct	skb_shared_hwtstamps
struct	ubuf_info
struct	skb_shared_info
struct	sk_buff

Macros
#define	CHECKSUM_NONE   0
#define	CHECKSUM_UNNECESSARY   1
#define	CHECKSUM_COMPLETE   2
#define	CHECKSUM_PARTIAL   3
#define	SKB_DATA_ALIGN(X)
#define	SKB_WITH_OVERHEAD(X)   ((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
#define	SKB_MAX_ORDER(X, ORDER)   SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))
#define	SKB_MAX_HEAD(X)   (SKB_MAX_ORDER((X), 0))
#define	SKB_MAX_ALLOC   (SKB_MAX_ORDER(0, 2))
#define	SKB_TRUESIZE(X)
#define	MAX_SKB_FRAGS   (65536/PAGE_SIZE + 1)
#define	HAVE_HW_TIME_STAMP
#define	SKB_DATAREF_SHIFT   16
#define	SKB_DATAREF_MASK   ((1 << SKB_DATAREF_SHIFT) - 1)

Typedefs
typedef struct skb_frag_struct	skb_frag_t
typedef unsigned char *	sk_buff_data_t

Enumerations
enum	{   SKBTX_HW_TSTAMP = 1 << 0, SKBTX_SW_TSTAMP = 1 << 1, SKBTX_IN_PROGRESS = 1 << 2, SKBTX_DEV_ZEROCOPY = 1 << 3,   SKBTX_WIFI_STATUS = 1 << 4 }
enum	{ SKB_FCLONE_UNAVAILABLE, SKB_FCLONE_ORIG, SKB_FCLONE_CLONE }
enum	{   SKB_GSO_TCPV4 = 1 << 0, SKB_GSO_UDP = 1 << 1, SKB_GSO_DODGY = 1 << 2, SKB_GSO_TCP_ECN = 1 << 3,   SKB_GSO_TCPV6 = 1 << 4, SKB_GSO_FCOE = 1 << 5 }

Macro Definition Documentation

#define CHECKSUM_COMPLETE   2

Definition at line 39 of file skbuff.h.

#define CHECKSUM_NONE   0

Definition at line 37 of file skbuff.h.

#define CHECKSUM_PARTIAL   3

Definition at line 40 of file skbuff.h.

#define CHECKSUM_UNNECESSARY   1

Definition at line 38 of file skbuff.h.

#define HAVE_HW_TIME_STAMP

Definition at line 187 of file skbuff.h.

#define MAX_SKB_FRAGS   (65536/PAGE_SIZE + 1)

Definition at line 149 of file skbuff.h.

#define SKB_DATA_ALIGN

(

X

)

Value:

(((X) + (SMP_CACHE_BYTES - 1)) & \
                 ~(SMP_CACHE_BYTES - 1))

Definition at line 42 of file skbuff.h.

#define SKB_DATAREF_MASK   ((1 << SKB_DATAREF_SHIFT) - 1)

Definition at line 286 of file skbuff.h.

#define SKB_DATAREF_SHIFT   16

Definition at line 285 of file skbuff.h.

#define SKB_MAX_ALLOC   (SKB_MAX_ORDER(0, 2))

Definition at line 49 of file skbuff.h.

#define SKB_MAX_HEAD

(

X

)

(SKB_MAX_ORDER((X), 0))

Definition at line 48 of file skbuff.h.

#define SKB_MAX_ORDER	(		X,
			ORDER
	)		SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))

Definition at line 46 of file skbuff.h.

#define SKB_TRUESIZE

(

X

)

Value:

((X) +                      \
             SKB_DATA_ALIGN(sizeof(struct sk_buff)) +   \
             SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))

Definition at line 52 of file skbuff.h.

#define SKB_WITH_OVERHEAD

(

X

)

((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))

Definition at line 44 of file skbuff.h.

Typedef Documentation

typedef unsigned char* sk_buff_data_t

Definition at line 317 of file skbuff.h.

typedef struct skb_frag_struct skb_frag_t

Definition at line 152 of file skbuff.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

SKBTX_HW_TSTAMP
SKBTX_SW_TSTAMP
SKBTX_IN_PROGRESS
SKBTX_DEV_ZEROCOPY
SKBTX_WIFI_STATUS

Definition at line 218 of file skbuff.h.

anonymous enum

Enumerator:

SKB_FCLONE_UNAVAILABLE
SKB_FCLONE_ORIG
SKB_FCLONE_CLONE

Definition at line 289 of file skbuff.h.

anonymous enum

Enumerator:

SKB_GSO_TCPV4
SKB_GSO_UDP
SKB_GSO_DODGY
SKB_GSO_TCP_ECN
SKB_GSO_TCPV6
SKB_GSO_FCOE

Definition at line 295 of file skbuff.h.