sys/net/ipfw2_basic/ip_fw2_basic.h

   1  /*
   2  * Copyright (c) 2014 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Bill Yuan <bycn82@gmail.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34 #ifndef _IP_FW_BASIC_H
  35 #define _IP_FW_BASIC_H
  36
  37 #define MODULE_BASIC_ID 0
  38 #define MODULE_BASIC_NAME "basic"
  39
  40 #ifdef _KERNEL
  41 MALLOC_DEFINE(M_IPFW2_BASIC,"IPFW2_BASIC", "ip_fw2 basic module");
  42 #endif
  43
  44 enum ipfw_basic_opcodes {
  45         O_BASIC_ACCEPT,         /* accept */
  46         O_BASIC_DENY,           /* deny */
  47         O_BASIC_COUNT,          /* count */
  48         O_BASIC_SKIPTO,         /* skipto action->arg1  */
  49         O_BASIC_FORWARD,        /* arg3 count of dest, arg1 type of fwd */
  50
  51         O_BASIC_IN,             /* in */
  52         O_BASIC_OUT,            /* out */
  53         O_BASIC_VIA,            /* via */
  54         O_BASIC_XMIT,           /* xmit */
  55         O_BASIC_RECV,           /* recv */
  56
  57         O_BASIC_PROTO,          /*  arg1=protocol       */
  58         O_BASIC_IP_SRC,
  59         O_BASIC_IP_SRC_MASK,    /*  ip = IP/mask*/
  60         O_BASIC_IP_SRC_ME,      /*  me  */
  61         O_BASIC_IP_SRC_SET,     /*  u32=base, arg1=len, bitmap  */
  62
  63         O_BASIC_IP_DST,
  64         O_BASIC_IP_DST_MASK,    /*  ip = IP/mask */
  65         O_BASIC_IP_DST_ME,      /*  me  */
  66         O_BASIC_IP_DST_SET,     /*  u32=base, arg1=len, bitmap  */
  67         O_BASIC_IP_SRCPORT,     /*  (n)port list:mask 4 byte ea */
  68         O_BASIC_IP_DSTPORT,     /*  (n)port list:mask 4 byte ea */
  69         O_BASIC_PROB,           /*  probability 0~1*/
  70         O_BASIC_KEEP_STATE,     /*  */
  71         O_BASIC_CHECK_STATE,    /*  */
  72         O_BASIC_TAG,            /*  action, add tag info into mbuf */
  73         O_BASIC_UNTAG,          /*  action, remote tag from mbuf */
  74         O_BASIC_TAGGED,         /*  filter, check the tag info */
  75
  76         O_BASIC_COMMENT,        /*  comment,behind action, no check */
  77 };
  78
  79
  80 #define IS_EXPIRED(state)  (state->lifetime > 0 &&                      \
  81                 (state->timestamp + state->lifetime) < time_second) ||  \
  82                 ((state->expiry != 0) && (state->expiry < time_second))
  83
  84 #define IPFW_BASIC_LOADED   (ip_fw_basic_loaded)
  85
  86 #endif