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Diffstat (limited to 'net/batman-adv/types.h')
| -rw-r--r-- | net/batman-adv/types.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h new file mode 100644 index 000000000000..97cb23dd3e69 --- /dev/null +++ b/net/batman-adv/types.h @@ -0,0 +1,271 @@ +/* + * 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 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; + struct kref 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 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; + unsigned long *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 gw_flags; + uint8_t flags; + unsigned char *hna_buff; + int16_t hna_buff_len; + uint32_t last_real_seqno; + uint8_t last_ttl; + unsigned long bcast_bits[NUM_WORDS]; + uint32_t last_bcast_seqno; + struct list_head neigh_list; + struct list_head frag_list; + unsigned long last_frag_packet; + struct { + uint8_t candidates; + struct neigh_node *selected; + } bond; +}; + +struct gw_node { + struct hlist_node list; + struct orig_node *orig_node; + unsigned long deleted; + struct kref refcount; + struct rcu_head rcu; +}; + +/** + * 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; + unsigned long real_bits[NUM_WORDS]; + struct orig_node *orig_node; + struct batman_if *if_incoming; +}; + + +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; + char num_ifaces; + struct hlist_head softif_neigh_list; + struct softif_neigh *softif_neigh; + struct debug_log *debug_log; + struct batman_if *primary_if; + 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 list_head vis_send_list; + struct hashtable_t *orig_hash; + struct hashtable_t *hna_local_hash; + struct hashtable_t *hna_global_hash; + struct hashtable_t *vis_hash; + spinlock_t orig_hash_lock; /* protects orig_hash */ + spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ + spinlock_t forw_bcast_list_lock; /* protects */ + spinlock_t hna_lhash_lock; /* protects hna_local_hash */ + spinlock_t hna_ghash_lock; /* protects hna_global_hash */ + spinlock_t gw_list_lock; /* protects gw_list */ + 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 */ + int16_t num_local_hna; + atomic_t hna_local_changed; + struct delayed_work hna_work; + struct delayed_work orig_work; + struct delayed_work vis_work; + struct gw_node *curr_gw; + 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 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; + 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; /* 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; + struct list_head recv_list; + /* list of server-neighbors we received a vis-packet + * from. we should not reply to them. */ + struct list_head send_list; + struct kref refcount; + 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*/ +} __attribute__((packed)); + +struct vis_info_entry { + uint8_t src[ETH_ALEN]; + uint8_t dest[ETH_ALEN]; + uint8_t quality; /* quality = 0 means HNA */ +} __attribute__((packed)); + +struct recvlist_node { + struct list_head list; + uint8_t mac[ETH_ALEN]; +}; + +struct softif_neigh { + struct hlist_node list; + uint8_t addr[ETH_ALEN]; + unsigned long last_seen; + short vid; + struct kref refcount; + struct rcu_head rcu; +}; + +#endif /* _NET_BATMAN_ADV_TYPES_H_ */ |