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FreeBSD/Linux Kernel Cross Reference
sys/netgraph/ng_nat.h

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    1 /*-
    2  * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/8.0/sys/netgraph/ng_nat.h 176791 2008-03-04 11:10:54Z mav $
   27  */
   28 
   29 #define NG_NAT_NODE_TYPE    "nat"
   30 #define NGM_NAT_COOKIE      1107718711
   31 
   32 #define NG_NAT_HOOK_IN  "in"
   33 #define NG_NAT_HOOK_OUT "out"
   34 
   35 /* Arguments for NGM_NAT_SET_MODE message */
   36 struct ng_nat_mode {
   37         uint32_t        flags;
   38         uint32_t        mask;
   39 };
   40 
   41 /* Keep this in sync with the above structure definition */
   42 #define NG_NAT_MODE_INFO {                              \
   43           { "flags",    &ng_parse_uint32_type   },      \
   44           { "mask",     &ng_parse_uint32_type   },      \
   45           { NULL }                                      \
   46 }
   47 
   48 #define NG_NAT_LOG                      0x01
   49 #define NG_NAT_DENY_INCOMING            0x02
   50 #define NG_NAT_SAME_PORTS               0x04
   51 #define NG_NAT_UNREGISTERED_ONLY        0x10
   52 #define NG_NAT_RESET_ON_ADDR_CHANGE     0x20
   53 #define NG_NAT_PROXY_ONLY               0x40
   54 #define NG_NAT_REVERSE                  0x80
   55 
   56 #define NG_NAT_DESC_LENGTH      64
   57 #define NG_NAT_REDIRPROTO_ADDR  (IPPROTO_MAX + 3)       /* LibAlias' LINK_ADDR, also unused in in.h */
   58 
   59 /* Arguments for NGM_NAT_REDIRECT_PORT message */
   60 struct ng_nat_redirect_port {
   61         struct in_addr  local_addr;
   62         struct in_addr  alias_addr;
   63         struct in_addr  remote_addr;
   64         uint16_t        local_port;
   65         uint16_t        alias_port;
   66         uint16_t        remote_port;
   67         uint8_t         proto;
   68         char            description[NG_NAT_DESC_LENGTH];
   69 };
   70 
   71 /* Keep this in sync with the above structure definition */
   72 #define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) {              \
   73           { "local_addr",       &ng_parse_ipaddr_type   },      \
   74           { "alias_addr",       &ng_parse_ipaddr_type   },      \
   75           { "remote_addr",      &ng_parse_ipaddr_type   },      \
   76           { "local_port",       &ng_parse_uint16_type   },      \
   77           { "alias_port",       &ng_parse_uint16_type   },      \
   78           { "remote_port",      &ng_parse_uint16_type   },      \
   79           { "proto",            &ng_parse_uint8_type    },      \
   80           { "description",      (desctype)              },      \
   81           { NULL }                                              \
   82 }
   83 
   84 /* Arguments for NGM_NAT_REDIRECT_ADDR message */
   85 struct ng_nat_redirect_addr {
   86         struct in_addr  local_addr;
   87         struct in_addr  alias_addr;
   88         char            description[NG_NAT_DESC_LENGTH];
   89 };
   90 
   91 /* Keep this in sync with the above structure definition */
   92 #define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) {              \
   93           { "local_addr",       &ng_parse_ipaddr_type   },      \
   94           { "alias_addr",       &ng_parse_ipaddr_type   },      \
   95           { "description",      (desctype)              },      \
   96           { NULL }                                              \
   97 }
   98 
   99 /* Arguments for NGM_NAT_REDIRECT_PROTO message */
  100 struct ng_nat_redirect_proto {
  101         struct in_addr  local_addr;
  102         struct in_addr  alias_addr;
  103         struct in_addr  remote_addr;
  104         uint8_t         proto;
  105         char            description[NG_NAT_DESC_LENGTH];
  106 };
  107 
  108 /* Keep this in sync with the above structure definition */
  109 #define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) {             \
  110           { "local_addr",       &ng_parse_ipaddr_type   },      \
  111           { "alias_addr",       &ng_parse_ipaddr_type   },      \
  112           { "remote_addr",      &ng_parse_ipaddr_type   },      \
  113           { "proto",            &ng_parse_uint8_type    },      \
  114           { "description",      (desctype)              },      \
  115           { NULL }                                              \
  116 }
  117 
  118 /* Arguments for NGM_NAT_ADD_SERVER message */
  119 struct ng_nat_add_server {
  120         uint32_t        id;
  121         struct in_addr  addr;
  122         uint16_t        port;
  123 };
  124 
  125 /* Keep this in sync with the above structure definition */
  126 #define NG_NAT_ADD_SERVER_TYPE_INFO {                           \
  127           { "id",               &ng_parse_uint32_type   },      \
  128           { "addr",             &ng_parse_ipaddr_type   },      \
  129           { "port",             &ng_parse_uint16_type   },      \
  130           { NULL }                                              \
  131 }
  132 
  133 /* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */
  134 struct ng_nat_listrdrs_entry {
  135         uint32_t        id;             /* Anything except zero */
  136         struct in_addr  local_addr;
  137         struct in_addr  alias_addr;
  138         struct in_addr  remote_addr;
  139         uint16_t        local_port;
  140         uint16_t        alias_port;
  141         uint16_t        remote_port;
  142         uint16_t        proto;          /* Valid proto or NG_NAT_REDIRPROTO_ADDR */
  143         uint16_t        lsnat;          /* LSNAT servers count */
  144         char            description[NG_NAT_DESC_LENGTH];
  145 };
  146 
  147 /* Keep this in sync with the above structure definition */
  148 #define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) {                     \
  149           { "id",               &ng_parse_uint32_type   },      \
  150           { "local_addr",       &ng_parse_ipaddr_type   },      \
  151           { "alias_addr",       &ng_parse_ipaddr_type   },      \
  152           { "remote_addr",      &ng_parse_ipaddr_type   },      \
  153           { "local_port",       &ng_parse_uint16_type   },      \
  154           { "alias_port",       &ng_parse_uint16_type   },      \
  155           { "remote_port",      &ng_parse_uint16_type   },      \
  156           { "proto",            &ng_parse_uint16_type   },      \
  157           { "lsnat",            &ng_parse_uint16_type   },      \
  158           { "description",      (desctype)              },      \
  159           { NULL }                                              \
  160 }
  161 
  162 /* Structure returned by NGM_NAT_LIST_REDIRECTS */
  163 struct ng_nat_list_redirects {
  164         uint32_t                total_count;
  165         struct ng_nat_listrdrs_entry redirects[];
  166 };
  167 
  168 /* Keep this in sync with the above structure definition */
  169 #define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) {            \
  170           { "total_count",      &ng_parse_uint32_type   },      \
  171           { "redirects",        (redirtype)             },      \
  172           { NULL }                                              \
  173 }
  174 
  175 enum {
  176         NGM_NAT_SET_IPADDR = 1,
  177         NGM_NAT_SET_MODE,
  178         NGM_NAT_SET_TARGET,
  179         NGM_NAT_REDIRECT_PORT,
  180         NGM_NAT_REDIRECT_ADDR,
  181         NGM_NAT_REDIRECT_PROTO,
  182         NGM_NAT_REDIRECT_DYNAMIC,
  183         NGM_NAT_REDIRECT_DELETE,
  184         NGM_NAT_ADD_SERVER,
  185         NGM_NAT_LIST_REDIRECTS,
  186         NGM_NAT_PROXY_RULE,
  187 };

Cache object: 941a4f8c4f441187f271223126898849


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