| /* |
| * Copyright (C) 2007-2012 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; |
| bool tt_initialised; |
| /* 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; |
| DECLARE_BITMAP(bcast_bits, TQ_LOCAL_WINDOW_SIZE); |
| 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; |
| DECLARE_BITMAP(real_bits, TQ_LOCAL_WINDOW_SIZE); |
| 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 bcast_duplist_entry { |
| uint8_t orig[ETH_ALEN]; |
| uint16_t crc; |
| unsigned long entrytime; |
| }; |
| |
| 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 ap_isolation; /* boolean */ |
| atomic_t bridge_loop_avoidance; /* 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 */ |
| atomic_t bla_num_requests; /* number of bla requests in flight */ |
| /* 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 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 hashtable_t *claim_hash; |
| struct hashtable_t *backbone_hash; |
| struct list_head tt_req_list; /* list of pending tt_requests */ |
| struct list_head tt_roam_list; |
| struct hashtable_t *vis_hash; |
| struct bcast_duplist_entry bcast_duplist[DUPLIST_SIZE]; |
| int bcast_duplist_curr; |
| struct bla_claim_dst claim_dest; |
| 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 */ |
| 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 delayed_work bla_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 bat_algo_ops *bat_algo_ops; |
| }; |
| |
| 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_common_entry { |
| uint8_t addr[ETH_ALEN]; |
| struct hlist_node hash_entry; |
| uint16_t flags; |
| atomic_t refcount; |
| struct rcu_head rcu; |
| }; |
| |
| struct tt_local_entry { |
| struct tt_common_entry common; |
| unsigned long last_seen; |
| }; |
| |
| struct tt_global_entry { |
| struct tt_common_entry common; |
| struct hlist_head orig_list; |
| spinlock_t list_lock; /* protects the list */ |
| unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */ |
| }; |
| |
| struct tt_orig_list_entry { |
| struct orig_node *orig_node; |
| uint8_t ttvn; |
| struct rcu_head rcu; |
| struct hlist_node list; |
| }; |
| |
| struct backbone_gw { |
| uint8_t orig[ETH_ALEN]; |
| short vid; /* used VLAN ID */ |
| struct hlist_node hash_entry; |
| struct bat_priv *bat_priv; |
| unsigned long lasttime; /* last time we heard of this backbone gw */ |
| atomic_t request_sent; |
| atomic_t refcount; |
| struct rcu_head rcu; |
| uint16_t crc; /* crc checksum over all claims */ |
| }; |
| |
| struct claim { |
| uint8_t addr[ETH_ALEN]; |
| short vid; |
| struct backbone_gw *backbone_gw; |
| unsigned long lasttime; /* last time we heard of claim (locals only) */ |
| struct rcu_head rcu; |
| atomic_t refcount; |
| struct hlist_node hash_entry; |
| }; |
| |
| 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 bat_algo_ops { |
| struct hlist_node list; |
| char *name; |
| /* init OGM when hard-interface is enabled */ |
| void (*bat_ogm_init)(struct hard_iface *hard_iface); |
| /* init primary OGM when primary interface is selected */ |
| void (*bat_ogm_init_primary)(struct hard_iface *hard_iface); |
| /* init mac addresses of the OGM belonging to this hard-interface */ |
| void (*bat_ogm_update_mac)(struct hard_iface *hard_iface); |
| /* prepare a new outgoing OGM for the send queue */ |
| void (*bat_ogm_schedule)(struct hard_iface *hard_iface, |
| int tt_num_changes); |
| /* send scheduled OGM */ |
| void (*bat_ogm_emit)(struct forw_packet *forw_packet); |
| /* receive incoming OGM */ |
| void (*bat_ogm_receive)(struct hard_iface *if_incoming, |
| struct sk_buff *skb); |
| }; |
| |
| #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |