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 #define IPRULE_PRIORITY_REJECT 4200000000
  23
  24 enum iprule_flags {
  25         /* address family for rule */
  26         IPRULE_INET4            = (0 << 0),
  27         IPRULE_INET6            = (1 << 0),
  28         IPRULE_FAMILY           = IPRULE_INET4 | IPRULE_INET6,
  29
  30         /* rule specifies input device */
  31         IPRULE_IN                       = (1 << 2),
  32
  33         /* rule specifies output device */
  34         IPRULE_OUT                      = (1 << 3),
  35
  36         /* rule specifies src */
  37         IPRULE_SRC                      = (1 << 4),
  38
  39         /* rule specifies dest */
  40         IPRULE_DEST                     = (1 << 5),
  41
  42         /* rule specifies priority */
  43         IPRULE_PRIORITY         = (1 << 6),
  44
  45         /* rule specifies diffserv/tos */
  46         IPRULE_TOS                      = (1 << 7),
  47
  48         /* rule specifies fwmark */
  49         IPRULE_FWMARK           = (1 << 8),
  50
  51         /* rule specifies fwmask */
  52         IPRULE_FWMASK           = (1 << 9),
  53
  54         /* rule performs table lookup */
  55         IPRULE_LOOKUP           = (1 << 10),
  56
  57         /* rule performs routing action */
  58         IPRULE_ACTION           = (1 << 11),
  59
  60         /* rule is a goto */
  61         IPRULE_GOTO                     = (1 << 12),
  62 };
  63
  64 struct iprule {
  65         struct vlist_node node;
  66         unsigned int order;
  67
  68         /* everything below is used as avl tree key */
  69         enum iprule_flags flags;
  70
  71         bool invert;
  72
  73         char in_dev[IFNAMSIZ + 1];
  74         char out_dev[IFNAMSIZ + 1];
  75
  76         unsigned int src_mask;
  77         union if_addr src_addr;
  78
  79         unsigned int dest_mask;
  80         union if_addr dest_addr;
  81
  82         unsigned int priority;
  83         unsigned int tos;
  84
  85         unsigned int fwmark;
  86         unsigned int fwmask;
  87
  88         unsigned int lookup;
  89         unsigned int action;
  90         unsigned int gotoid;
  91 };
  92
  93 extern struct vlist_tree iprules;
  94 extern const struct uci_blob_param_list rule_attr_list;
  95
  96 void iprule_add(struct blob_attr *attr, bool v6);
  97 void iprule_update_start(void);
  98 void iprule_update_complete(void);
  99
 100 #endif