iprule.h

   1 /*
   2  * netifd - network interface daemon
   3  * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
   4  * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15 #ifndef __IPRULE_H
  16 #define __IPRULE_H
  17
  18 #include "interface-ip.h"
  19
  20 #define IPRULE_PRIORITY_ADDR 10000
  21 #define IPRULE_PRIORITY_ADDR_MASK 20000
  22 #define IPRULE_PRIORITY_NW 90000
  23 #define IPRULE_PRIORITY_REJECT 4200000000
  24
  25 enum iprule_flags {
  26         /* address family for rule */
  27         IPRULE_INET4            = (0 << 0),
  28         IPRULE_INET6            = (1 << 0),
  29         IPRULE_FAMILY           = IPRULE_INET4 | IPRULE_INET6,
  30
  31         /* rule specifies input device */
  32         IPRULE_IN                       = (1 << 2),
  33
  34         /* rule specifies output device */
  35         IPRULE_OUT                      = (1 << 3),
  36
  37         /* rule specifies src */
  38         IPRULE_SRC                      = (1 << 4),
  39
  40         /* rule specifies dest */
  41         IPRULE_DEST                     = (1 << 5),
  42
  43         /* rule specifies priority */
  44         IPRULE_PRIORITY         = (1 << 6),
  45
  46         /* rule specifies diffserv/tos */
  47         IPRULE_TOS                      = (1 << 7),
  48
  49         /* rule specifies fwmark */
  50         IPRULE_FWMARK           = (1 << 8),
  51
  52         /* rule specifies fwmask */
  53         IPRULE_FWMASK           = (1 << 9),
  54
  55         /* rule performs table lookup */
  56         IPRULE_LOOKUP           = (1 << 10),
  57
  58         /* rule performs routing action */
  59         IPRULE_ACTION           = (1 << 11),
  60
  61         /* rule is a goto */
  62         IPRULE_GOTO                     = (1 << 12),
  63
  64         /* rule suppresses results by prefix length */
  65         IPRULE_SUP_PREFIXLEN    = (1 << 13),
  66 };
  67
  68 struct iprule {
  69         struct vlist_node node;
  70         unsigned int order;
  71
  72         /* everything below is used as avl tree key */
  73         enum iprule_flags flags;
  74
  75         bool invert;
  76
  77         char in_dev[IFNAMSIZ + 1];
  78         char out_dev[IFNAMSIZ + 1];
  79
  80         unsigned int src_mask;
  81         union if_addr src_addr;
  82
  83         unsigned int dest_mask;
  84         union if_addr dest_addr;
  85
  86         unsigned int priority;
  87         unsigned int tos;
  88
  89         unsigned int fwmark;
  90         unsigned int fwmask;
  91
  92         unsigned int lookup;
  93         unsigned int sup_prefixlen;
  94         unsigned int action;
  95         unsigned int gotoid;
  96 };
  97
  98 extern struct vlist_tree iprules;
  99 extern const struct uci_blob_param_list rule_attr_list;
 100
 101 void iprule_add(struct blob_attr *attr, bool v6);
 102 void iprule_update_start(void);
 103 void iprule_update_complete(void);
 104
 105 #endif