struct_sk_buff

Langue: en

Version: October 2010 (fedora - 01/12/10)

Section: 9 (Appels noyau Linux)

NAME

struct_sk_buff - socket buffer

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};
   __u16 vlan_tci;
   sk_buff_data_t transport_header;
   sk_buff_data_t network_header;
   sk_buff_data_t 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

vlan_tci

vlan tag control information

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