SYNOPSIS

struct sk_buff {
struct sk_buff * next;
struct sk_buff * prev;
ktime_t tstamp;
struct sock * sk;
struct net_device * dev;
char cb[48];
unsigned long _skb_refdst;
#ifdef CONFIG_XFRM
struct sec_path * sp;
#endif
unsigned int len;
unsigned int data_len;
__u16 mac_len;
__u16 hdr_len;
union {unnamed_union};
__be16 inner_protocol;
__u16 inner_transport_header;
__u16 inner_network_header;
__u16 inner_mac_header;
__u16 transport_header;
__u16 network_header;
__u16 mac_header;
sk_buff_data_t tail;
sk_buff_data_t end;
unsigned char * head;
unsigned char * data;
unsigned int truesize;
atomic_t users;
};

MEMBERS

next

Next buffer in list

prev

Previous buffer in list

tstamp

Time we arrived

sk

Socket we are owned by

dev

Device we arrived on/are leaving by

cb[48]

Control buffer. Free for use by every layer. Put private vars here

_skb_refdst

destination entry (with norefcount bit)

sp

the security path, used for xfrm

len

Length of actual data

data_len

Data length

mac_len

Length of link layer header

hdr_len

writable header length of cloned skb

{unnamed_union}

anonymous

inner_protocol

Protocol (encapsulation)

inner_transport_header

Inner transport layer header (encapsulation)

inner_network_header

Network layer header (encapsulation)

inner_mac_header

Link layer header (encapsulation)

transport_header

Transport layer header

network_header

Network layer header

mac_header

Link layer header

tail

Tail pointer

end

End pointer

head

Head of buffer

data

Data head pointer

truesize

Buffer size

users

User count - see {datagram,tcp}.c

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