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   *     @last_valid: when last packet from this node was received
  56   *     @bcast_seqno_reset: time when the broadcast seqno window was reset
  57   *     @batman_seqno_reset: time when the batman seqno window was reset
  58   *     @flags: for now only VIS_SERVER flag
  59   *     @last_real_seqno: last and best known squence number
  60   *     @last_ttl: ttl of last received packet
  61   *     @last_bcast_seqno: last broadcast sequence number received by this host
  62  */
  63 struct orig_node {
  64         uint8_t orig[ETH_ALEN];
  65         struct neigh_node *router;
  66         TYPE_OF_WORD *bcast_own;
  67         uint8_t *bcast_own_sum;
  68         uint8_t tq_own;
  69         int tq_asym_penalty;
  70         unsigned long last_valid;
  71         unsigned long bcast_seqno_reset;
  72         unsigned long batman_seqno_reset;
  73         uint8_t  flags;
  74         unsigned char *hna_buff;
  75         int16_t  hna_buff_len;
  76         uint16_t last_real_seqno;
  77         uint8_t last_ttl;
  78         TYPE_OF_WORD bcast_bits[NUM_WORDS];
  79         uint16_t last_bcast_seqno;
  80         struct list_head neigh_list;
  81 };
  82
  83 /**
  84   *     neigh_node
  85   *     @last_valid: when last packet via this neighbor was received
  86  */
  87 struct neigh_node {
  88         struct list_head list;
  89         uint8_t addr[ETH_ALEN];
  90         uint8_t real_packet_count;
  91         uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
  92         uint8_t tq_index;
  93         uint8_t tq_avg;
  94         uint8_t last_ttl;
  95         unsigned long last_valid;
  96         TYPE_OF_WORD real_bits[NUM_WORDS];
  97         struct orig_node *orig_node;
  98         struct batman_if *if_incoming;
  99 };
 100
 101 struct bat_priv {
 102         struct net_device_stats stats;
 103         atomic_t aggregation_enabled;
 104         atomic_t vis_mode;
 105         atomic_t orig_interval;
 106         char num_ifaces;
 107         struct batman_if *primary_if;
 108         struct kobject *mesh_obj;
 109         struct dentry *debug_dir;
 110 };
 111
 112 struct socket_client {
 113         struct list_head queue_list;
 114         unsigned int queue_len;
 115         unsigned char index;
 116         spinlock_t lock;
 117         wait_queue_head_t queue_wait;
 118 };
 119
 120 struct socket_packet {
 121         struct list_head list;
 122         struct icmp_packet icmp_packet;
 123 };
 124
 125 struct hna_local_entry {
 126         uint8_t addr[ETH_ALEN];
 127         unsigned long last_seen;
 128         char never_purge;
 129 };
 130
 131 struct hna_global_entry {
 132         uint8_t addr[ETH_ALEN];
 133         struct orig_node *orig_node;
 134 };
 135
 136 /**
 137   *     forw_packet - structure for forw_list maintaining packets to be
 138   *                   send/forwarded
 139  */
 140 struct forw_packet {
 141         struct hlist_node list;
 142         unsigned long send_time;
 143         uint8_t own;
 144         struct sk_buff *skb;
 145         unsigned char *packet_buff;
 146         uint16_t packet_len;
 147         uint32_t direct_link_flags;
 148         uint8_t num_packets;
 149         struct delayed_work delayed_work;
 150         struct batman_if *if_incoming;
 151 };
 152
 153 /* While scanning for vis-entries of a particular vis-originator
 154  * this list collects its interfaces to create a subgraph/cluster
 155  * out of them later
 156  */
 157 struct if_list_entry {
 158         uint8_t addr[ETH_ALEN];
 159         bool primary;
 160         struct hlist_node list;
 161 };
 162
 163 #endif