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STRUCT SK_BUFF(9) Linux Networking STRUCT SK_BUFF(9)

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

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.