ip_ether.h

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    1 /*      $OpenBSD: ip_ether.h,v 1.30 2019/10/04 05:00:49 dlg Exp $ */
    2 /*
    3  * The author of this code is Angelos D. Keromytis (angelos@adk.gr)
    4  *
    5  * This code was written by Angelos D. Keromytis in October 1999.
    6  *
    7  * Copyright (C) 1999-2001 Angelos D. Keromytis.
    8  *
    9  * Permission to use, copy, and modify this software with or without fee
   10  * is hereby granted, provided that this entire notice is included in
   11  * all copies of any software which is or includes a copy or
   12  * modification of this software.
   13  * You may use this code under the GNU public license if you so wish. Please
   14  * contribute changes back to the authors under this freer than GPL license
   15  * so that we may further the use of strong encryption without limitations to
   16  * all.
   17  *
   18  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
   19  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
   20  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
   21  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
   22  * PURPOSE.
   23  */
   24 
   25 #ifndef _NETINET_IP_ETHER_H_
   26 #define _NETINET_IP_ETHER_H_
   27 
   28 /*
   29  * Ethernet-inside-IP processing.
   30  */
   31 
   32 struct etheripstat {
   33         u_int64_t       etherips_hdrops;        /* packet shorter than header shows */
   34         u_int64_t       etherips_qfull;         /* bridge queue full, packet dropped */
   35         u_int64_t       etherips_noifdrops;     /* no interface/bridge information */
   36         u_int64_t       etherips_pdrops;        /* packet dropped due to policy */
   37         u_int64_t       etherips_adrops;        /* all other drops */
   38         u_int64_t       etherips_ipackets;      /* total input packets */
   39         u_int64_t       etherips_opackets;      /* total output packets */
   40         u_int64_t       etherips_ibytes;        /* input bytes */
   41         u_int64_t       etherips_obytes;        /* output bytes */
   42 };
   43 
   44 struct etherip_header {
   45 #if BYTE_ORDER == LITTLE_ENDIAN
   46         u_int           eip_res:4;      /* reserved */
   47         u_int           eip_ver:4;      /* version */
   48 #endif
   49 #if BYTE_ORDER == BIG_ENDIAN
   50         u_int           eip_ver:4;      /* version */
   51         u_int           eip_res:4;      /* reserved */
   52 #endif
   53         u_int8_t        eip_pad;        /* required padding byte */
   54 } __packed;
   55 
   56 #define ETHERIP_VERSION         0x03
   57 
   58 /*
   59  * Names for Ether-IP sysctl objects
   60  */
   61 #define ETHERIPCTL_ALLOW        1       /* accept incoming EtherIP packets */
   62 #define ETHERIPCTL_STATS        2       /* etherip stats */
   63 #define ETHERIPCTL_MAXID        3
   64 
   65 #define ETHERIPCTL_NAMES { \
   66         { 0, 0 }, \
   67         { "allow", CTLTYPE_INT }, \
   68         { "stats", CTLTYPE_STRUCT }, \
   69 }
   70 
   71 #ifdef _KERNEL
   72 
   73 #include <sys/percpu.h>
   74 
   75 enum etheripstat_counters {
   76         etherips_hdrops,                /* packet shorter than header shows */
   77         etherips_qfull,                 /* bridge queue full, packet dropped */
   78         etherips_noifdrops,             /* no interface/bridge information */
   79         etherips_pdrops,                /* packet dropped due to policy */
   80         etherips_adrops,                /* all other drops */
   81         etherips_ipackets,              /* total input packets */
   82         etherips_opackets,              /* total output packets */
   83         etherips_ibytes,                /* input bytes */
   84         etherips_obytes,                /* output bytes */
   85 
   86         etherips_ncounters
   87 };
   88 
   89 extern struct cpumem *etheripcounters;
   90 
   91 static inline void
   92 etheripstat_inc(enum etheripstat_counters c)
   93 {
   94         counters_inc(etheripcounters, c);
   95 }
   96 
   97 static inline void
   98 etheripstat_add(enum etheripstat_counters c, uint64_t v)
   99 {
  100         counters_add(etheripcounters, c, v);
  101 }
  102 
  103 static inline void
  104 etheripstat_pkt(enum etheripstat_counters pcounter,
  105     enum etheripstat_counters bcounter, uint64_t v)
  106 {
  107         counters_pkt(etheripcounters, pcounter, bcounter, v);
  108 }
  109 
  110 #endif /* _KERNEL */
  111 #endif /* _NETINET_IP_ETHER_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/netinet/ip_ether.h

FreeBSD/Linux Kernel Cross Reference
sys/netinet/ip_ether.h