(ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \
sizeof(struct batadv_bcast_packet)))
+/* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
+ * BATADV_DAT_ADDR_MAX is changed as well.
+ *
+ * *Please be careful: batadv_dat_addr_t must be UNSIGNED*
+ */
+#define batadv_dat_addr_t uint16_t
+
+/**
+ * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
+ * @ogm_buff: buffer holding the OGM packet
+ * @ogm_buff_len: length of the OGM packet buffer
+ * @ogm_seqno: OGM sequence number - used to identify each OGM
+ */
+struct batadv_hard_iface_bat_iv {
+ unsigned char *ogm_buff;
+ int ogm_buff_len;
+ atomic_t ogm_seqno;
+};
+
struct batadv_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;
+ struct batadv_hard_iface_bat_iv bat_iv;
};
/**
uint8_t orig[ETH_ALEN];
uint8_t primary_addr[ETH_ALEN];
struct batadv_neigh_node __rcu *router; /* rcu protected pointer */
+ batadv_dat_addr_t dat_addr;
unsigned long *bcast_own;
uint8_t *bcast_own_sum;
unsigned long last_seen;
struct batadv_hashtable *backbone_hash;
struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE];
int bcast_duplist_curr;
+ /* protects bcast_duplist and bcast_duplist_curr */
+ spinlock_t bcast_duplist_lock;
struct batadv_bla_claim_dst claim_dest;
struct delayed_work work;
};
struct batadv_vis_info *my_info;
};
+/**
+ * struct batadv_priv_dat - per mesh interface DAT private data
+ * @addr: node DAT address
+ * @hash: hashtable representing the local ARP cache
+ * @work: work queue callback item for cache purging
+ */
+struct batadv_priv_dat {
+ batadv_dat_addr_t addr;
+ struct batadv_hashtable *hash;
+ struct delayed_work work;
+};
+
struct batadv_priv {
atomic_t mesh_state;
struct net_device_stats stats;
struct batadv_priv_gw gw;
struct batadv_priv_tt tt;
struct batadv_priv_vis vis;
+ struct batadv_priv_dat dat;
};
struct batadv_socket_client {
void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
};
+/**
+ * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It
+ * is used to stored ARP entries needed for the global DAT cache
+ * @ip: the IPv4 corresponding to this DAT/ARP entry
+ * @mac_addr: the MAC address associated to the stored IPv4
+ * @last_update: time in jiffies when this entry was refreshed last time
+ * @hash_entry: hlist node for batadv_priv_dat::hash
+ * @refcount: number of contexts the object is used
+ * @rcu: struct used for freeing in an RCU-safe manner
+ */
+struct batadv_dat_entry {
+ __be32 ip;
+ uint8_t mac_addr[ETH_ALEN];
+ unsigned long last_update;
+ struct hlist_node hash_entry;
+ atomic_t refcount;
+ struct rcu_head rcu;
+};
+
+/**
+ * struct batadv_dat_candidate - candidate destination for DAT operations
+ * @type: the type of the selected candidate. It can one of the following:
+ * - BATADV_DAT_CANDIDATE_NOT_FOUND
+ * - BATADV_DAT_CANDIDATE_ORIG
+ * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the
+ * corresponding originator node structure
+ */
+struct batadv_dat_candidate {
+ int type;
+ struct batadv_orig_node *orig_node;
+};
+
#endif /* _NET_BATMAN_ADV_TYPES_H_ */