nptv6.h

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    1 /*-
    2  * Copyright (c) 2016 Yandex LLC
    3  * Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  *
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   26  *
   27  * $FreeBSD$
   28  */
   29 
   30 #ifndef _IP_FW_NPTV6_H_
   31 #define _IP_FW_NPTV6_H_
   32 
   33 #include <netinet6/ip_fw_nptv6.h>
   34 
   35 #ifdef _KERNEL
   36 #define NPTV6STATS      (sizeof(struct ipfw_nptv6_stats) / sizeof(uint64_t))
   37 #define NPTV6STAT_ADD(c, f, v)          \
   38     counter_u64_add((c)->stats[         \
   39         offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)], (v))
   40 #define NPTV6STAT_INC(c, f)     NPTV6STAT_ADD(c, f, 1)
   41 #define NPTV6STAT_FETCH(c, f)           \
   42     counter_u64_fetch((c)->stats[       \
   43         offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)])
   44 
   45 struct nptv6_cfg {
   46         struct named_object     no;
   47 
   48         struct in6_addr         internal;   /* Internal IPv6 prefix */
   49         struct in6_addr         external;   /* External IPv6 prefix */
   50         struct in6_addr         mask;       /* IPv6 prefix mask */
   51         uint16_t                adjustment; /* Checksum adjustment value */
   52         uint8_t                 plen;       /* Prefix length */
   53         uint8_t                 flags;      /* Flags for internal use */
   54 #define NPTV6_READY             0x80
   55 #define NPTV6_48PLEN            0x40
   56 
   57         char                    if_name[IF_NAMESIZE];
   58         char                    name[64];   /* Instance name */
   59         counter_u64_t           stats[NPTV6STATS]; /* Statistics counters */
   60 };
   61 #define NPTV6_FLAGSMASK         (NPTV6_DYNAMIC_PREFIX)
   62 
   63 int nptv6_init(struct ip_fw_chain *ch, int first);
   64 void nptv6_uninit(struct ip_fw_chain *ch, int last);
   65 #endif /* _KERNEL */
   66 
   67 #endif /* _IP_FW_NPTV6_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/netpfil/ipfw/nptv6/nptv6.h

FreeBSD/Linux Kernel Cross Reference
sys/netpfil/ipfw/nptv6/nptv6.h