mirror of https://gitee.com/openkylin/linux.git
346 lines
9.8 KiB
C
346 lines
9.8 KiB
C
/*
|
|
* Copyright (C) 2007-2011 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 hard_iface {
|
|
struct list_head list;
|
|
int16_t if_num;
|
|
char if_status;
|
|
struct net_device *net_dev;
|
|
atomic_t seqno;
|
|
atomic_t frag_seqno;
|
|
unsigned char *packet_buff;
|
|
int packet_len;
|
|
struct kobject *hardif_obj;
|
|
atomic_t refcount;
|
|
struct packet_type batman_adv_ptype;
|
|
struct net_device *soft_iface;
|
|
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
|
|
* @gw_flags: flags related to gateway class
|
|
* @flags: for now only VIS_SERVER flag
|
|
* @last_real_seqno: last and best known sequence 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 __rcu *router; /* rcu protected pointer */
|
|
unsigned long *bcast_own;
|
|
uint8_t *bcast_own_sum;
|
|
unsigned long last_valid;
|
|
unsigned long bcast_seqno_reset;
|
|
unsigned long batman_seqno_reset;
|
|
uint8_t gw_flags;
|
|
uint8_t flags;
|
|
atomic_t last_ttvn; /* last seen translation table version number */
|
|
uint16_t tt_crc;
|
|
unsigned char *tt_buff;
|
|
int16_t tt_buff_len;
|
|
spinlock_t tt_buff_lock; /* protects tt_buff */
|
|
atomic_t tt_size;
|
|
/* The tt_poss_change flag is used to detect an ongoing roaming phase.
|
|
* If true, then I sent a Roaming_adv to this orig_node and I have to
|
|
* inspect every packet directed to it to check whether it is still
|
|
* the true destination or not. This flag will be reset to false as
|
|
* soon as I receive a new TTVN from this orig_node */
|
|
bool tt_poss_change;
|
|
uint32_t last_real_seqno;
|
|
uint8_t last_ttl;
|
|
unsigned long bcast_bits[NUM_WORDS];
|
|
uint32_t last_bcast_seqno;
|
|
struct hlist_head neigh_list;
|
|
struct list_head frag_list;
|
|
spinlock_t neigh_list_lock; /* protects neigh_list and router */
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
struct hlist_node hash_entry;
|
|
struct bat_priv *bat_priv;
|
|
unsigned long last_frag_packet;
|
|
/* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
|
|
* neigh_node->real_bits, neigh_node->real_packet_count */
|
|
spinlock_t ogm_cnt_lock;
|
|
/* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */
|
|
spinlock_t bcast_seqno_lock;
|
|
spinlock_t tt_list_lock; /* protects tt_list */
|
|
atomic_t bond_candidates;
|
|
struct list_head bond_list;
|
|
};
|
|
|
|
struct gw_node {
|
|
struct hlist_node list;
|
|
struct orig_node *orig_node;
|
|
unsigned long deleted;
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* neigh_node
|
|
* @last_valid: when last packet via this neighbor was received
|
|
*/
|
|
struct neigh_node {
|
|
struct hlist_node 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 list_head bonding_list;
|
|
unsigned long last_valid;
|
|
unsigned long real_bits[NUM_WORDS];
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
struct orig_node *orig_node;
|
|
struct hard_iface *if_incoming;
|
|
spinlock_t tq_lock; /* protects: tq_recv, tq_index */
|
|
};
|
|
|
|
|
|
struct bat_priv {
|
|
atomic_t mesh_state;
|
|
struct net_device_stats stats;
|
|
atomic_t aggregated_ogms; /* boolean */
|
|
atomic_t bonding; /* boolean */
|
|
atomic_t fragmentation; /* boolean */
|
|
atomic_t vis_mode; /* VIS_TYPE_* */
|
|
atomic_t gw_mode; /* GW_MODE_* */
|
|
atomic_t gw_sel_class; /* uint */
|
|
atomic_t gw_bandwidth; /* gw bandwidth */
|
|
atomic_t orig_interval; /* uint */
|
|
atomic_t hop_penalty; /* uint */
|
|
atomic_t log_level; /* uint */
|
|
atomic_t bcast_seqno;
|
|
atomic_t bcast_queue_left;
|
|
atomic_t batman_queue_left;
|
|
atomic_t ttvn; /* translation table version number */
|
|
atomic_t tt_ogm_append_cnt;
|
|
atomic_t tt_local_changes; /* changes registered in a OGM interval */
|
|
/* The tt_poss_change flag is used to detect an ongoing roaming phase.
|
|
* If true, then I received a Roaming_adv and I have to inspect every
|
|
* packet directed to me to check whether I am still the true
|
|
* destination or not. This flag will be reset to false as soon as I
|
|
* increase my TTVN */
|
|
bool tt_poss_change;
|
|
char num_ifaces;
|
|
struct debug_log *debug_log;
|
|
struct kobject *mesh_obj;
|
|
struct dentry *debug_dir;
|
|
struct hlist_head forw_bat_list;
|
|
struct hlist_head forw_bcast_list;
|
|
struct hlist_head gw_list;
|
|
struct hlist_head softif_neigh_vids;
|
|
struct list_head tt_changes_list; /* tracks changes in a OGM int */
|
|
struct list_head vis_send_list;
|
|
struct hashtable_t *orig_hash;
|
|
struct hashtable_t *tt_local_hash;
|
|
struct hashtable_t *tt_global_hash;
|
|
struct list_head tt_req_list; /* list of pending tt_requests */
|
|
struct list_head tt_roam_list;
|
|
struct hashtable_t *vis_hash;
|
|
spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
|
|
spinlock_t forw_bcast_list_lock; /* protects */
|
|
spinlock_t tt_changes_list_lock; /* protects tt_changes */
|
|
spinlock_t tt_req_list_lock; /* protects tt_req_list */
|
|
spinlock_t tt_roam_list_lock; /* protects tt_roam_list */
|
|
spinlock_t gw_list_lock; /* protects gw_list and curr_gw */
|
|
spinlock_t vis_hash_lock; /* protects vis_hash */
|
|
spinlock_t vis_list_lock; /* protects vis_info::recv_list */
|
|
spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */
|
|
spinlock_t softif_neigh_vid_lock; /* protects soft-interface vid list */
|
|
atomic_t num_local_tt;
|
|
/* Checksum of the local table, recomputed before sending a new OGM */
|
|
atomic_t tt_crc;
|
|
unsigned char *tt_buff;
|
|
int16_t tt_buff_len;
|
|
spinlock_t tt_buff_lock; /* protects tt_buff */
|
|
struct delayed_work tt_work;
|
|
struct delayed_work orig_work;
|
|
struct delayed_work vis_work;
|
|
struct gw_node __rcu *curr_gw; /* rcu protected pointer */
|
|
atomic_t gw_reselect;
|
|
struct hard_iface __rcu *primary_if; /* rcu protected pointer */
|
|
struct vis_info *my_vis_info;
|
|
};
|
|
|
|
struct socket_client {
|
|
struct list_head queue_list;
|
|
unsigned int queue_len;
|
|
unsigned char index;
|
|
spinlock_t lock; /* protects queue_list, queue_len, index */
|
|
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 tt_local_entry {
|
|
uint8_t addr[ETH_ALEN];
|
|
unsigned long last_seen;
|
|
uint16_t flags;
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
struct hlist_node hash_entry;
|
|
};
|
|
|
|
struct tt_global_entry {
|
|
uint8_t addr[ETH_ALEN];
|
|
struct orig_node *orig_node;
|
|
uint8_t ttvn;
|
|
uint16_t flags; /* only TT_GLOBAL_ROAM is used */
|
|
unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
struct hlist_node hash_entry; /* entry in the global table */
|
|
};
|
|
|
|
struct tt_change_node {
|
|
struct list_head list;
|
|
struct tt_change change;
|
|
};
|
|
|
|
struct tt_req_node {
|
|
uint8_t addr[ETH_ALEN];
|
|
unsigned long issued_at;
|
|
struct list_head list;
|
|
};
|
|
|
|
struct tt_roam_node {
|
|
uint8_t addr[ETH_ALEN];
|
|
atomic_t counter;
|
|
unsigned long first_time;
|
|
struct list_head list;
|
|
};
|
|
|
|
/**
|
|
* 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;
|
|
uint16_t packet_len;
|
|
uint32_t direct_link_flags;
|
|
uint8_t num_packets;
|
|
struct delayed_work delayed_work;
|
|
struct hard_iface *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; /* protects log_buff, log_start and log_end */
|
|
wait_queue_head_t queue_wait;
|
|
};
|
|
|
|
struct frag_packet_list_entry {
|
|
struct list_head list;
|
|
uint16_t seqno;
|
|
struct sk_buff *skb;
|
|
};
|
|
|
|
struct vis_info {
|
|
unsigned long first_seen;
|
|
/* list of server-neighbors we received a vis-packet
|
|
* from. we should not reply to them. */
|
|
struct list_head recv_list;
|
|
struct list_head send_list;
|
|
struct kref refcount;
|
|
struct hlist_node hash_entry;
|
|
struct bat_priv *bat_priv;
|
|
/* this packet might be part of the vis send queue. */
|
|
struct sk_buff *skb_packet;
|
|
/* vis_info may follow here*/
|
|
} __packed;
|
|
|
|
struct vis_info_entry {
|
|
uint8_t src[ETH_ALEN];
|
|
uint8_t dest[ETH_ALEN];
|
|
uint8_t quality; /* quality = 0 client */
|
|
} __packed;
|
|
|
|
struct recvlist_node {
|
|
struct list_head list;
|
|
uint8_t mac[ETH_ALEN];
|
|
};
|
|
|
|
struct softif_neigh_vid {
|
|
struct hlist_node list;
|
|
struct bat_priv *bat_priv;
|
|
short vid;
|
|
atomic_t refcount;
|
|
struct softif_neigh __rcu *softif_neigh;
|
|
struct rcu_head rcu;
|
|
struct hlist_head softif_neigh_list;
|
|
};
|
|
|
|
struct softif_neigh {
|
|
struct hlist_node list;
|
|
uint8_t addr[ETH_ALEN];
|
|
unsigned long last_seen;
|
|
atomic_t refcount;
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
#endif /* _NET_BATMAN_ADV_TYPES_H_ */
|