'\" t .\" Title: struct sk_buff .\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: June 2017 .\" Manual: Linux Networking .\" Source: Kernel Hackers Manual 4.11.3 .\" Language: English .\" .TH "STRUCT SK_BUFF" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "Linux Networking" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" struct_sk_buff \- socket buffer .SH "SYNOPSIS" .sp .nf struct sk_buff { union {unnamed_union}; __u16 inner_transport_header; __u16 inner_network_header; __u16 inner_mac_header; __be16 protocol; __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; }; .fi .SH "MEMBERS" .PP union {unnamed_union} .RS 4 anonymous .RE .PP __u16 inner_transport_header .RS 4 Inner transport layer header (encapsulation) .RE .PP __u16 inner_network_header .RS 4 Network layer header (encapsulation) .RE .PP __u16 inner_mac_header .RS 4 Link layer header (encapsulation) .RE .PP __be16 protocol .RS 4 Packet protocol from driver .RE .PP __u16 transport_header .RS 4 Transport layer header .RE .PP __u16 network_header .RS 4 Network layer header .RE .PP __u16 mac_header .RS 4 Link layer header .RE .PP sk_buff_data_t tail .RS 4 Tail pointer .RE .PP sk_buff_data_t end .RS 4 End pointer .RE .PP unsigned char * head .RS 4 Head of buffer .RE .PP unsigned char * data .RS 4 Data head pointer .RE .PP unsigned int truesize .RS 4 Buffer size .RE .PP atomic_t users .RS 4 User count \- see {datagram,tcp}\&.c .RE .SH "COPYRIGHT" .br