drivers/staging/batman-adv/types.h

   1 /*
   2  * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
   3  *
   4  * Marek Lindner, Simon Wunderlich
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA
  19  *
  20  */
  21
  22
  23
  24
  25
  26 #ifndef TYPES_H
  27 #define TYPES_H
  28
  29 #include "packet.h"
  30 #include "bitarray.h"
  31
  32 #define BAT_HEADER_LEN (sizeof(struct ethhdr) + \
  33         ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \
  34          sizeof(struct unicast_packet) : \
  35          sizeof(struct bcast_packet))))
  36
  37
  38 struct batman_if {
  39         struct list_head list;
  40         int16_t if_num;
  41         char *dev;
  42         char if_status;
  43         char addr_str[ETH_STR_LEN];
  44         struct net_device *net_dev;
  45         atomic_t seqno;
  46         unsigned char *packet_buff;
  47         int packet_len;
  48         struct kobject *hardif_obj;
  49         struct rcu_head rcu;
  50
  51 };
  52
  53 /**
  54   *     orig_node - structure for orig_list maintaining nodes of mesh
  55   *     @primary_addr: hosts primary interface address
  56   *     @last_valid: when last packet from this node was received
  57   *     @bcast_seqno_reset: time when the broadcast seqno window was reset
  58   *     @batman_seqno_reset: time when the batman seqno window was reset
  59   *     @flags: for now only VIS_SERVER flag
  60   *     @last_real_seqno: last and best known squence number
  61   *     @last_ttl: ttl of last received packet
  62   *     @last_bcast_seqno: last broadcast sequence number received by this host
  63   *
  64   *     @candidates: how many candidates are available
  65   *     @selected: next bonding candidate
  66  */
  67 struct orig_node {
  68         uint8_t orig[ETH_ALEN];
  69         uint8_t primary_addr[ETH_ALEN];
  70         struct neigh_node *router;
  71         TYPE_OF_WORD *bcast_own;
  72         uint8_t *bcast_own_sum;
  73         uint8_t tq_own;
  74         int tq_asym_penalty;
  75         unsigned long last_valid;
  76         unsigned long bcast_seqno_reset;
  77         unsigned long batman_seqno_reset;
  78         uint8_t  flags;
  79         unsigned char *hna_buff;
  80         int16_t hna_buff_len;
  81         uint32_t last_real_seqno;
  82         uint8_t last_ttl;
  83         TYPE_OF_WORD bcast_bits[NUM_WORDS];
  84         uint32_t last_bcast_seqno;
  85         struct list_head neigh_list;
  86         struct {
  87                 uint8_t candidates;
  88                 struct neigh_node *selected;
  89         } bond;
  90 };
  91
  92 /**
  93   *     neigh_node
  94   *     @last_valid: when last packet via this neighbor was received
  95  */
  96 struct neigh_node {
  97         struct list_head list;
  98         uint8_t addr[ETH_ALEN];
  99         uint8_t real_packet_count;
 100         uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
 101         uint8_t tq_index;
 102         uint8_t tq_avg;
 103         uint8_t last_ttl;
 104         struct neigh_node *next_bond_candidate;
 105         unsigned long last_valid;
 106         TYPE_OF_WORD real_bits[NUM_WORDS];
 107         struct orig_node *orig_node;
 108         struct batman_if *if_incoming;
 109 };
 110
 111 struct bat_priv {
 112         struct net_device_stats stats;
 113         atomic_t aggregation_enabled;
 114         atomic_t bonding_enabled;
 115         atomic_t vis_mode;
 116         atomic_t orig_interval;
 117         char num_ifaces;
 118         struct batman_if *primary_if;
 119         struct kobject *mesh_obj;
 120         struct dentry *debug_dir;
 121 };
 122
 123 struct socket_client {
 124         struct list_head queue_list;
 125         unsigned int queue_len;
 126         unsigned char index;
 127         spinlock_t lock;
 128         wait_queue_head_t queue_wait;
 129 };
 130
 131 struct socket_packet {
 132         struct list_head list;
 133         struct icmp_packet icmp_packet;
 134 };
 135
 136 struct hna_local_entry {
 137         uint8_t addr[ETH_ALEN];
 138         unsigned long last_seen;
 139         char never_purge;
 140 };
 141
 142 struct hna_global_entry {
 143         uint8_t addr[ETH_ALEN];
 144         struct orig_node *orig_node;
 145 };
 146
 147 /**
 148   *     forw_packet - structure for forw_list maintaining packets to be
 149   *                   send/forwarded
 150  */
 151 struct forw_packet {
 152         struct hlist_node list;
 153         unsigned long send_time;
 154         uint8_t own;
 155         struct sk_buff *skb;
 156         unsigned char *packet_buff;
 157         uint16_t packet_len;
 158         uint32_t direct_link_flags;
 159         uint8_t num_packets;
 160         struct delayed_work delayed_work;
 161         struct batman_if *if_incoming;
 162 };
 163
 164 /* While scanning for vis-entries of a particular vis-originator
 165  * this list collects its interfaces to create a subgraph/cluster
 166  * out of them later
 167  */
 168 struct if_list_entry {
 169         uint8_t addr[ETH_ALEN];
 170         bool primary;
 171         struct hlist_node list;
 172 };
 173
 174 #endif