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/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*
*/
#ifndef _NET_BATMAN_ADV_TYPES_H_
#define _NET_BATMAN_ADV_TYPES_H_
#include "packet.h"
#include "bitarray.h"
#define BAT_HEADER_LEN (sizeof(struct ethhdr) + \
((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \
sizeof(struct unicast_packet) : \
sizeof(struct bcast_packet))))
struct batman_if {
struct list_head list;
int16_t if_num;
char *dev;
char if_status;
char addr_str[ETH_STR_LEN];
struct net_device *net_dev;
atomic_t seqno;
unsigned char *packet_buff;
int packet_len;
struct kobject *hardif_obj;
struct rcu_head rcu;
};
/**
* orig_node - structure for orig_list maintaining nodes of mesh
* @primary_addr: hosts primary interface address
* @last_valid: when last packet from this node was received
* @bcast_seqno_reset: time when the broadcast seqno window was reset
* @batman_seqno_reset: time when the batman seqno window was reset
* @flags: for now only VIS_SERVER flag
* @last_real_seqno: last and best known squence number
* @last_ttl: ttl of last received packet
* @last_bcast_seqno: last broadcast sequence number received by this host
*
* @candidates: how many candidates are available
* @selected: next bonding candidate
*/
struct orig_node {
uint8_t orig[ETH_ALEN];
uint8_t primary_addr[ETH_ALEN];
struct neigh_node *router;
TYPE_OF_WORD *bcast_own;
uint8_t *bcast_own_sum;
uint8_t tq_own;
int tq_asym_penalty;
unsigned long last_valid;
unsigned long bcast_seqno_reset;
unsigned long batman_seqno_reset;
uint8_t flags;
unsigned char *hna_buff;
int16_t hna_buff_len;
uint32_t last_real_seqno;
uint8_t last_ttl;
TYPE_OF_WORD bcast_bits[NUM_WORDS];
uint32_t last_bcast_seqno;
struct list_head neigh_list;
struct {
uint8_t candidates;
struct neigh_node *selected;
} bond;
};
/**
* neigh_node
* @last_valid: when last packet via this neighbor was received
*/
struct neigh_node {
struct list_head list;
uint8_t addr[ETH_ALEN];
uint8_t real_packet_count;
uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
uint8_t tq_index;
uint8_t tq_avg;
uint8_t last_ttl;
struct neigh_node *next_bond_candidate;
unsigned long last_valid;
TYPE_OF_WORD real_bits[NUM_WORDS];
struct orig_node *orig_node;
struct batman_if *if_incoming;
};
struct bat_priv {
struct net_device_stats stats;
atomic_t aggregation_enabled;
atomic_t bonding_enabled;
atomic_t vis_mode;
atomic_t orig_interval;
atomic_t log_level;
char num_ifaces;
struct debug_log *debug_log;
struct batman_if *primary_if;
struct kobject *mesh_obj;
struct dentry *debug_dir;
};
struct socket_client {
struct list_head queue_list;
unsigned int queue_len;
unsigned char index;
spinlock_t lock;
wait_queue_head_t queue_wait;
struct bat_priv *bat_priv;
};
struct socket_packet {
struct list_head list;
size_t icmp_len;
struct icmp_packet_rr icmp_packet;
};
struct hna_local_entry {
uint8_t addr[ETH_ALEN];
unsigned long last_seen;
char never_purge;
};
struct hna_global_entry {
uint8_t addr[ETH_ALEN];
struct orig_node *orig_node;
};
/**
* forw_packet - structure for forw_list maintaining packets to be
* send/forwarded
*/
struct forw_packet {
struct hlist_node list;
unsigned long send_time;
uint8_t own;
struct sk_buff *skb;
unsigned char *packet_buff;
uint16_t packet_len;
uint32_t direct_link_flags;
uint8_t num_packets;
struct delayed_work delayed_work;
struct batman_if *if_incoming;
};
/* While scanning for vis-entries of a particular vis-originator
* this list collects its interfaces to create a subgraph/cluster
* out of them later
*/
struct if_list_entry {
uint8_t addr[ETH_ALEN];
bool primary;
struct hlist_node list;
};
struct debug_log {
char log_buff[LOG_BUF_LEN];
unsigned long log_start;
unsigned long log_end;
spinlock_t lock;
wait_queue_head_t queue_wait;
};
#endif /* _NET_BATMAN_ADV_TYPES_H_ */
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