~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

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

Version: ~ [ linux-5.3-rc5 ] ~ [ linux-5.2.9 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.67 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.139 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.189 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.189 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.72 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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  *              Global definitions for the ARP (RFC 826) protocol.
  7  *
  8  * Version:     @(#)if_arp.h    1.0.1   04/16/93
  9  *
 10  * Authors:     Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
 11  *              Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source.
 12  *              Ross Biro
 13  *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 14  *              Florian La Roche,
 15  *              Jonathan Layes <layes@loran.com>
 16  *              Arnaldo Carvalho de Melo <acme@conectiva.com.br> ARPHRD_HWX25
 17  *
 18  *              This program is free software; you can redistribute it and/or
 19  *              modify it under the terms of the GNU General Public License
 20  *              as published by the Free Software Foundation; either version
 21  *              2 of the License, or (at your option) any later version.
 22  */
 23 #ifndef _LINUX_IF_ARP_H
 24 #define _LINUX_IF_ARP_H
 25 
 26 #include <linux/skbuff.h>
 27 #include <uapi/linux/if_arp.h>
 28 
 29 static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
 30 {
 31         return (struct arphdr *)skb_network_header(skb);
 32 }
 33 
 34 static inline int arp_hdr_len(struct net_device *dev)
 35 {
 36         switch (dev->type) {
 37 #if IS_ENABLED(CONFIG_FIREWIRE_NET)
 38         case ARPHRD_IEEE1394:
 39                 /* ARP header, device address and 2 IP addresses */
 40                 return sizeof(struct arphdr) + dev->addr_len + sizeof(u32) * 2;
 41 #endif
 42         default:
 43                 /* ARP header, plus 2 device addresses, plus 2 IP addresses. */
 44                 return sizeof(struct arphdr) + (dev->addr_len + sizeof(u32)) * 2;
 45         }
 46 }
 47 
 48 static inline bool dev_is_mac_header_xmit(const struct net_device *dev)
 49 {
 50         switch (dev->type) {
 51         case ARPHRD_TUNNEL:
 52         case ARPHRD_TUNNEL6:
 53         case ARPHRD_SIT:
 54         case ARPHRD_IPGRE:
 55         case ARPHRD_VOID:
 56         case ARPHRD_NONE:
 57                 return false;
 58         default:
 59                 return true;
 60         }
 61 }
 62 
 63 #endif  /* _LINUX_IF_ARP_H */
 64 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp