struct_skb_shared_hwtstamps(9) [centos man page]

STRUCT 
SKB_SHARED_HW(9) 					 Linux Networking					   STRUCT SKB_SHARED_HW(9)

NAME

       struct_skb_shared_hwtstamps - hardware time stamps

SYNOPSIS

       struct skb_shared_hwtstamps {
	 ktime_t hwtstamp;
	 ktime_t syststamp;
       };

MEMBERS

       hwtstamp
	   hardware time stamp transformed into duration since arbitrary point in time

       syststamp
	   hwtstamp transformed to system time base

DESCRIPTION

       Software time stamps generated by ktime_get_real are stored in skb->tstamp. The relation between the different kinds of time

STAMPS IS AS FOLLOWS

       syststamp and tstamp can be compared against each other in arbitrary combinations. The accuracy of a syststamp/tstamp/"syststamp from other
       device" comparison is limited by the accuracy of the transformation into system time base. This depends on the device driver and its
       underlying hardware.

       hwtstamps can only be compared against other hwtstamps from the same device.

       This structure is attached to packets as part of the skb_shared_info. Use skb_hwtstamps to get a pointer.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   STRUCT SKB_SHARED_HW(9)

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_dst;
       #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_dst
	   destination entry

       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

Kernel Hackers Manual 2.6.					     July 2010							 STRUCT SK_BUFF(9)