/* * 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*/ } __packed; struct vis_info_entry { uint8_t src[ETH_ALEN]; uint8_t dest[ETH_ALEN]; uint8_t quality; /* quality = 0 means HNA */ } __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_ */