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 80000
  21 #define IPRULE_PRIORITY_NW 90000
  22
  23 enum iprule_flags {
  24         /* address family for rule */
  25         IPRULE_INET4            = (0 << 0),
  26         IPRULE_INET6            = (1 << 0),
  27         IPRULE_FAMILY           = IPRULE_INET4 | IPRULE_INET6,
  28
  29         /* rule specifies input device */
  30         IPRULE_IN                       = (1 << 2),
  31
  32         /* rule specifies output device */
  33         IPRULE_OUT                      = (1 << 3),
  34
  35         /* rule specifies src */
  36         IPRULE_SRC                      = (1 << 4),
  37
  38         /* rule specifies dest */
  39         IPRULE_DEST                     = (1 << 5),
  40
  41         /* rule specifies priority */
  42         IPRULE_PRIORITY         = (1 << 6),
  43
  44         /* rule specifies diffserv/tos */
  45         IPRULE_TOS                      = (1 << 7),
  46
  47         /* rule specifies fwmark */
  48         IPRULE_FWMARK           = (1 << 8),
  49
  50         /* rule specifies fwmask */
  51         IPRULE_FWMASK           = (1 << 9),
  52
  53         /* rule performs table lookup */
  54         IPRULE_LOOKUP           = (1 << 10),
  55
  56         /* rule performs routing action */
  57         IPRULE_ACTION           = (1 << 11),
  58
  59         /* rule is a goto */
  60         IPRULE_GOTO                     = (1 << 12),
  61 };
  62
  63 struct iprule {
  64         struct vlist_node node;
  65         unsigned int order;
  66
  67         /* everything below is used as avl tree key */
  68         enum iprule_flags flags;
  69
  70         bool invert;
  71
  72         char in_dev[IFNAMSIZ + 1];
  73         char out_dev[IFNAMSIZ + 1];
  74
  75         unsigned int src_mask;
  76         union if_addr src_addr;
  77
  78         unsigned int dest_mask;
  79         union if_addr dest_addr;
  80
  81         unsigned int priority;
  82         unsigned int tos;
  83
  84         unsigned int fwmark;
  85         unsigned int fwmask;
  86
  87         unsigned int lookup;
  88         unsigned int action;
  89         unsigned int gotoid;
  90 };
  91
  92 extern struct vlist_tree iprules;
  93 extern const struct config_param_list rule_attr_list;
  94
  95 void iprule_add(struct blob_attr *attr, bool v6);
  96 void iprule_update_start(void);
  97 void iprule_update_complete(void);
  98
  99 #endif