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TOMOYO Linux Cross Reference
Linux/include/linux/ip.h

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  1 /*
  2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
  3  *              operating system.  INET is implemented using the  BSD Socket
  4  *              interface as the means of communication with the user level.
  5  *
  6  *              Definitions for the IP protocol.
  7  *
  8  * Version:     @(#)ip.h        1.0.2   04/28/93
  9  *
 10  * Authors:     Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 11  *
 12  *              This program is free software; you can redistribute it and/or
 13  *              modify it under the terms of the GNU General Public License
 14  *              as published by the Free Software Foundation; either version
 15  *              2 of the License, or (at your option) any later version.
 16  */
 17 #ifndef _LINUX_IP_H
 18 #define _LINUX_IP_H
 19 
 20 #include <linux/skbuff.h>
 21 #include <uapi/linux/ip.h>
 22 
 23 static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
 24 {
 25         return (struct iphdr *)skb_network_header(skb);
 26 }
 27 
 28 static inline struct iphdr *inner_ip_hdr(const struct sk_buff *skb)
 29 {
 30         return (struct iphdr *)skb_inner_network_header(skb);
 31 }
 32 
 33 static inline struct iphdr *ipip_hdr(const struct sk_buff *skb)
 34 {
 35         return (struct iphdr *)skb_transport_header(skb);
 36 }
 37 #endif  /* _LINUX_IP_H */
 38 

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