272 lines
7.1 KiB
C
272 lines
7.1 KiB
C
/*
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* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*
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*/
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#ifndef _NET_BATMAN_ADV_TYPES_H_
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#define _NET_BATMAN_ADV_TYPES_H_
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#include "packet.h"
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#include "bitarray.h"
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#define BAT_HEADER_LEN (sizeof(struct ethhdr) + \
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((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \
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sizeof(struct unicast_packet) : \
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sizeof(struct bcast_packet))))
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struct batman_if {
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struct list_head list;
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int16_t if_num;
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char if_status;
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struct net_device *net_dev;
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atomic_t seqno;
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atomic_t frag_seqno;
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unsigned char *packet_buff;
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int packet_len;
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struct kobject *hardif_obj;
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struct kref refcount;
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struct packet_type batman_adv_ptype;
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struct net_device *soft_iface;
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struct rcu_head rcu;
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};
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/**
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* orig_node - structure for orig_list maintaining nodes of mesh
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* @primary_addr: hosts primary interface address
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* @last_valid: when last packet from this node was received
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* @bcast_seqno_reset: time when the broadcast seqno window was reset
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* @batman_seqno_reset: time when the batman seqno window was reset
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* @gw_flags: flags related to gateway class
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* @flags: for now only VIS_SERVER flag
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* @last_real_seqno: last and best known squence number
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* @last_ttl: ttl of last received packet
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* @last_bcast_seqno: last broadcast sequence number received by this host
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*
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* @candidates: how many candidates are available
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* @selected: next bonding candidate
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*/
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struct orig_node {
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uint8_t orig[ETH_ALEN];
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uint8_t primary_addr[ETH_ALEN];
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struct neigh_node *router;
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unsigned long *bcast_own;
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uint8_t *bcast_own_sum;
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uint8_t tq_own;
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int tq_asym_penalty;
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unsigned long last_valid;
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unsigned long bcast_seqno_reset;
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unsigned long batman_seqno_reset;
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uint8_t gw_flags;
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uint8_t flags;
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unsigned char *hna_buff;
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int16_t hna_buff_len;
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uint32_t last_real_seqno;
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uint8_t last_ttl;
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unsigned long bcast_bits[NUM_WORDS];
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uint32_t last_bcast_seqno;
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struct list_head neigh_list;
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struct list_head frag_list;
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unsigned long last_frag_packet;
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struct {
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uint8_t candidates;
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struct neigh_node *selected;
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} bond;
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};
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struct gw_node {
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struct hlist_node list;
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struct orig_node *orig_node;
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unsigned long deleted;
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struct kref refcount;
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struct rcu_head rcu;
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};
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/**
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* neigh_node
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* @last_valid: when last packet via this neighbor was received
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*/
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struct neigh_node {
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struct list_head list;
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uint8_t addr[ETH_ALEN];
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uint8_t real_packet_count;
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uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
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uint8_t tq_index;
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uint8_t tq_avg;
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uint8_t last_ttl;
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struct neigh_node *next_bond_candidate;
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unsigned long last_valid;
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unsigned long real_bits[NUM_WORDS];
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struct orig_node *orig_node;
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struct batman_if *if_incoming;
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};
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struct bat_priv {
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atomic_t mesh_state;
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struct net_device_stats stats;
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atomic_t aggregated_ogms; /* boolean */
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atomic_t bonding; /* boolean */
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atomic_t fragmentation; /* boolean */
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atomic_t vis_mode; /* VIS_TYPE_* */
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atomic_t gw_mode; /* GW_MODE_* */
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atomic_t gw_sel_class; /* uint */
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atomic_t gw_bandwidth; /* gw bandwidth */
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atomic_t orig_interval; /* uint */
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atomic_t hop_penalty; /* uint */
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atomic_t log_level; /* uint */
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atomic_t bcast_seqno;
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atomic_t bcast_queue_left;
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atomic_t batman_queue_left;
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char num_ifaces;
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struct hlist_head softif_neigh_list;
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struct softif_neigh *softif_neigh;
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struct debug_log *debug_log;
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struct batman_if *primary_if;
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struct kobject *mesh_obj;
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struct dentry *debug_dir;
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struct hlist_head forw_bat_list;
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struct hlist_head forw_bcast_list;
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struct hlist_head gw_list;
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struct list_head vis_send_list;
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struct hashtable_t *orig_hash;
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struct hashtable_t *hna_local_hash;
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struct hashtable_t *hna_global_hash;
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struct hashtable_t *vis_hash;
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spinlock_t orig_hash_lock; /* protects orig_hash */
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spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
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spinlock_t forw_bcast_list_lock; /* protects */
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spinlock_t hna_lhash_lock; /* protects hna_local_hash */
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spinlock_t hna_ghash_lock; /* protects hna_global_hash */
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spinlock_t gw_list_lock; /* protects gw_list */
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spinlock_t vis_hash_lock; /* protects vis_hash */
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spinlock_t vis_list_lock; /* protects vis_info::recv_list */
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spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */
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int16_t num_local_hna;
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atomic_t hna_local_changed;
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struct delayed_work hna_work;
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struct delayed_work orig_work;
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struct delayed_work vis_work;
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struct gw_node *curr_gw;
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struct vis_info *my_vis_info;
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};
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struct socket_client {
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struct list_head queue_list;
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unsigned int queue_len;
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unsigned char index;
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spinlock_t lock; /* protects queue_list, queue_len, index */
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wait_queue_head_t queue_wait;
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struct bat_priv *bat_priv;
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};
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struct socket_packet {
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struct list_head list;
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size_t icmp_len;
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struct icmp_packet_rr icmp_packet;
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};
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struct hna_local_entry {
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uint8_t addr[ETH_ALEN];
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unsigned long last_seen;
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char never_purge;
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};
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struct hna_global_entry {
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uint8_t addr[ETH_ALEN];
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struct orig_node *orig_node;
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};
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/**
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* forw_packet - structure for forw_list maintaining packets to be
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* send/forwarded
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*/
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struct forw_packet {
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struct hlist_node list;
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unsigned long send_time;
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uint8_t own;
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struct sk_buff *skb;
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uint16_t packet_len;
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uint32_t direct_link_flags;
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uint8_t num_packets;
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struct delayed_work delayed_work;
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struct batman_if *if_incoming;
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};
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/* While scanning for vis-entries of a particular vis-originator
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* this list collects its interfaces to create a subgraph/cluster
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* out of them later
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*/
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struct if_list_entry {
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uint8_t addr[ETH_ALEN];
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bool primary;
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struct hlist_node list;
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};
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struct debug_log {
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char log_buff[LOG_BUF_LEN];
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unsigned long log_start;
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unsigned long log_end;
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spinlock_t lock; /* protects log_buff, log_start and log_end */
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wait_queue_head_t queue_wait;
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};
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struct frag_packet_list_entry {
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struct list_head list;
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uint16_t seqno;
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struct sk_buff *skb;
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};
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struct vis_info {
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unsigned long first_seen;
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struct list_head recv_list;
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/* list of server-neighbors we received a vis-packet
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* from. we should not reply to them. */
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struct list_head send_list;
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struct kref refcount;
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struct bat_priv *bat_priv;
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/* this packet might be part of the vis send queue. */
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struct sk_buff *skb_packet;
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/* vis_info may follow here*/
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} __packed;
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struct vis_info_entry {
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uint8_t src[ETH_ALEN];
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uint8_t dest[ETH_ALEN];
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uint8_t quality; /* quality = 0 means HNA */
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} __packed;
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struct recvlist_node {
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struct list_head list;
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uint8_t mac[ETH_ALEN];
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};
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struct softif_neigh {
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struct hlist_node list;
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uint8_t addr[ETH_ALEN];
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unsigned long last_seen;
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short vid;
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struct kref refcount;
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struct rcu_head rcu;
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};
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#endif /* _NET_BATMAN_ADV_TYPES_H_ */
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