2 * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #ifndef _NET_BATMAN_ADV_TYPES_H_
25 #define _NET_BATMAN_ADV_TYPES_H_
30 #define BAT_HEADER_LEN (sizeof(struct ethhdr) + \
31 ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \
32 sizeof(struct unicast_packet) : \
33 sizeof(struct bcast_packet))))
37 struct list_head list;
40 struct net_device *net_dev;
43 unsigned char *packet_buff;
45 struct kobject *hardif_obj;
47 struct packet_type batman_adv_ptype;
48 struct net_device *soft_iface;
53 * orig_node - structure for orig_list maintaining nodes of mesh
54 * @primary_addr: hosts primary interface address
55 * @last_valid: when last packet from this node was received
56 * @bcast_seqno_reset: time when the broadcast seqno window was reset
57 * @batman_seqno_reset: time when the batman seqno window was reset
58 * @gw_flags: flags related to gateway class
59 * @flags: for now only VIS_SERVER flag
60 * @last_real_seqno: last and best known sequence number
61 * @last_ttl: ttl of last received packet
62 * @last_bcast_seqno: last broadcast sequence number received by this host
64 * @candidates: how many candidates are available
65 * @selected: next bonding candidate
68 uint8_t orig[ETH_ALEN];
69 uint8_t primary_addr[ETH_ALEN];
70 struct neigh_node __rcu *router; /* rcu protected pointer */
71 unsigned long *bcast_own;
72 uint8_t *bcast_own_sum;
73 unsigned long last_valid;
74 unsigned long bcast_seqno_reset;
75 unsigned long batman_seqno_reset;
78 atomic_t last_ttvn; /* last seen translation table version number */
80 unsigned char *tt_buff;
82 spinlock_t tt_buff_lock; /* protects tt_buff */
85 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
86 * If true, then I sent a Roaming_adv to this orig_node and I have to
87 * inspect every packet directed to it to check whether it is still
88 * the true destination or not. This flag will be reset to false as
89 * soon as I receive a new TTVN from this orig_node */
91 uint32_t last_real_seqno;
93 DECLARE_BITMAP(bcast_bits, TQ_LOCAL_WINDOW_SIZE);
94 uint32_t last_bcast_seqno;
95 struct hlist_head neigh_list;
96 struct list_head frag_list;
97 spinlock_t neigh_list_lock; /* protects neigh_list and router */
100 struct hlist_node hash_entry;
101 struct bat_priv *bat_priv;
102 unsigned long last_frag_packet;
103 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
104 * neigh_node->real_bits, neigh_node->real_packet_count */
105 spinlock_t ogm_cnt_lock;
106 /* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */
107 spinlock_t bcast_seqno_lock;
108 spinlock_t tt_list_lock; /* protects tt_list */
109 atomic_t bond_candidates;
110 struct list_head bond_list;
114 struct hlist_node list;
115 struct orig_node *orig_node;
116 unsigned long deleted;
123 * @last_valid: when last packet via this neighbor was received
126 struct hlist_node list;
127 uint8_t addr[ETH_ALEN];
128 uint8_t real_packet_count;
129 uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
133 struct list_head bonding_list;
134 unsigned long last_valid;
135 DECLARE_BITMAP(real_bits, TQ_LOCAL_WINDOW_SIZE);
138 struct orig_node *orig_node;
139 struct hard_iface *if_incoming;
140 spinlock_t tq_lock; /* protects: tq_recv, tq_index */
146 struct net_device_stats stats;
147 atomic_t aggregated_ogms; /* boolean */
148 atomic_t bonding; /* boolean */
149 atomic_t fragmentation; /* boolean */
150 atomic_t ap_isolation; /* boolean */
151 atomic_t bridge_loop_avoidance; /* boolean */
152 atomic_t vis_mode; /* VIS_TYPE_* */
153 atomic_t gw_mode; /* GW_MODE_* */
154 atomic_t gw_sel_class; /* uint */
155 atomic_t gw_bandwidth; /* gw bandwidth */
156 atomic_t orig_interval; /* uint */
157 atomic_t hop_penalty; /* uint */
158 atomic_t log_level; /* uint */
159 atomic_t bcast_seqno;
160 atomic_t bcast_queue_left;
161 atomic_t batman_queue_left;
162 atomic_t ttvn; /* translation table version number */
163 atomic_t tt_ogm_append_cnt;
164 atomic_t tt_local_changes; /* changes registered in a OGM interval */
165 atomic_t bla_num_requests; /* number of bla requests in flight */
166 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
167 * If true, then I received a Roaming_adv and I have to inspect every
168 * packet directed to me to check whether I am still the true
169 * destination or not. This flag will be reset to false as soon as I
170 * increase my TTVN */
173 struct debug_log *debug_log;
174 struct kobject *mesh_obj;
175 struct dentry *debug_dir;
176 struct hlist_head forw_bat_list;
177 struct hlist_head forw_bcast_list;
178 struct hlist_head gw_list;
179 struct list_head tt_changes_list; /* tracks changes in a OGM int */
180 struct list_head vis_send_list;
181 struct hashtable_t *orig_hash;
182 struct hashtable_t *tt_local_hash;
183 struct hashtable_t *tt_global_hash;
184 struct hashtable_t *claim_hash;
185 struct hashtable_t *backbone_hash;
186 struct list_head tt_req_list; /* list of pending tt_requests */
187 struct list_head tt_roam_list;
188 struct hashtable_t *vis_hash;
189 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
190 spinlock_t forw_bcast_list_lock; /* protects */
191 spinlock_t tt_changes_list_lock; /* protects tt_changes */
192 spinlock_t tt_req_list_lock; /* protects tt_req_list */
193 spinlock_t tt_roam_list_lock; /* protects tt_roam_list */
194 spinlock_t gw_list_lock; /* protects gw_list and curr_gw */
195 spinlock_t vis_hash_lock; /* protects vis_hash */
196 spinlock_t vis_list_lock; /* protects vis_info::recv_list */
197 atomic_t num_local_tt;
198 /* Checksum of the local table, recomputed before sending a new OGM */
200 unsigned char *tt_buff;
202 spinlock_t tt_buff_lock; /* protects tt_buff */
203 struct delayed_work tt_work;
204 struct delayed_work orig_work;
205 struct delayed_work vis_work;
206 struct delayed_work bla_work;
207 struct gw_node __rcu *curr_gw; /* rcu protected pointer */
208 atomic_t gw_reselect;
209 struct hard_iface __rcu *primary_if; /* rcu protected pointer */
210 struct vis_info *my_vis_info;
211 struct bat_algo_ops *bat_algo_ops;
214 struct socket_client {
215 struct list_head queue_list;
216 unsigned int queue_len;
218 spinlock_t lock; /* protects queue_list, queue_len, index */
219 wait_queue_head_t queue_wait;
220 struct bat_priv *bat_priv;
223 struct socket_packet {
224 struct list_head list;
226 struct icmp_packet_rr icmp_packet;
229 struct tt_common_entry {
230 uint8_t addr[ETH_ALEN];
231 struct hlist_node hash_entry;
237 struct tt_local_entry {
238 struct tt_common_entry common;
239 unsigned long last_seen;
242 struct tt_global_entry {
243 struct tt_common_entry common;
244 struct orig_node *orig_node;
246 unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */
250 uint8_t orig[ETH_ALEN];
251 short vid; /* used VLAN ID */
252 struct hlist_node hash_entry;
253 struct bat_priv *bat_priv;
254 unsigned long lasttime; /* last time we heard of this backbone gw */
255 atomic_t request_sent;
258 uint16_t crc; /* crc checksum over all claims */
262 uint8_t addr[ETH_ALEN];
264 struct backbone_gw *backbone_gw;
265 unsigned long lasttime; /* last time we heard of claim (locals only) */
268 struct hlist_node hash_entry;
271 struct tt_change_node {
272 struct list_head list;
273 struct tt_change change;
277 uint8_t addr[ETH_ALEN];
278 unsigned long issued_at;
279 struct list_head list;
282 struct tt_roam_node {
283 uint8_t addr[ETH_ALEN];
285 unsigned long first_time;
286 struct list_head list;
290 * forw_packet - structure for forw_list maintaining packets to be
294 struct hlist_node list;
295 unsigned long send_time;
299 uint32_t direct_link_flags;
301 struct delayed_work delayed_work;
302 struct hard_iface *if_incoming;
305 /* While scanning for vis-entries of a particular vis-originator
306 * this list collects its interfaces to create a subgraph/cluster
309 struct if_list_entry {
310 uint8_t addr[ETH_ALEN];
312 struct hlist_node list;
316 char log_buff[LOG_BUF_LEN];
317 unsigned long log_start;
318 unsigned long log_end;
319 spinlock_t lock; /* protects log_buff, log_start and log_end */
320 wait_queue_head_t queue_wait;
323 struct frag_packet_list_entry {
324 struct list_head list;
330 unsigned long first_seen;
331 /* list of server-neighbors we received a vis-packet
332 * from. we should not reply to them. */
333 struct list_head recv_list;
334 struct list_head send_list;
335 struct kref refcount;
336 struct hlist_node hash_entry;
337 struct bat_priv *bat_priv;
338 /* this packet might be part of the vis send queue. */
339 struct sk_buff *skb_packet;
340 /* vis_info may follow here*/
343 struct vis_info_entry {
344 uint8_t src[ETH_ALEN];
345 uint8_t dest[ETH_ALEN];
346 uint8_t quality; /* quality = 0 client */
349 struct recvlist_node {
350 struct list_head list;
351 uint8_t mac[ETH_ALEN];
354 struct bat_algo_ops {
355 struct hlist_node list;
357 /* init OGM when hard-interface is enabled */
358 void (*bat_ogm_init)(struct hard_iface *hard_iface);
359 /* init primary OGM when primary interface is selected */
360 void (*bat_ogm_init_primary)(struct hard_iface *hard_iface);
361 /* init mac addresses of the OGM belonging to this hard-interface */
362 void (*bat_ogm_update_mac)(struct hard_iface *hard_iface);
363 /* prepare a new outgoing OGM for the send queue */
364 void (*bat_ogm_schedule)(struct hard_iface *hard_iface,
366 /* send scheduled OGM */
367 void (*bat_ogm_emit)(struct forw_packet *forw_packet);
368 /* receive incoming OGM */
369 void (*bat_ogm_receive)(struct hard_iface *if_incoming,
370 struct sk_buff *skb);
373 #endif /* _NET_BATMAN_ADV_TYPES_H_ */