packet: Add 'cpu' fanout policy.
[linux-2.6-block.git] / net / batman-adv / types.h
CommitLineData
c6c8fea2 1/*
64afe353 2 * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
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3 *
4 * Marek Lindner, Simon Wunderlich
5 *
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.
9 *
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.
14 *
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
18 * 02110-1301, USA
19 *
20 */
21
22
23
24#ifndef _NET_BATMAN_ADV_TYPES_H_
25#define _NET_BATMAN_ADV_TYPES_H_
26
27#include "packet.h"
28#include "bitarray.h"
29
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))))
34
35
e6c10f43 36struct hard_iface {
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37 struct list_head list;
38 int16_t if_num;
39 char if_status;
40 struct net_device *net_dev;
41 atomic_t seqno;
42 atomic_t frag_seqno;
43 unsigned char *packet_buff;
44 int packet_len;
45 struct kobject *hardif_obj;
ed75ccbe 46 atomic_t refcount;
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47 struct packet_type batman_adv_ptype;
48 struct net_device *soft_iface;
49 struct rcu_head rcu;
50};
51
52/**
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 squence number
61 * @last_ttl: ttl of last received packet
62 * @last_bcast_seqno: last broadcast sequence number received by this host
63 *
64 * @candidates: how many candidates are available
65 * @selected: next bonding candidate
66 */
67struct orig_node {
68 uint8_t orig[ETH_ALEN];
69 uint8_t primary_addr[ETH_ALEN];
e1a5382f 70 struct neigh_node __rcu *router; /* rcu protected pointer */
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71 unsigned long *bcast_own;
72 uint8_t *bcast_own_sum;
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73 unsigned long last_valid;
74 unsigned long bcast_seqno_reset;
75 unsigned long batman_seqno_reset;
76 uint8_t gw_flags;
77 uint8_t flags;
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78 atomic_t last_ttvn; /* last seen translation table version number */
79 uint16_t tt_crc;
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80 unsigned char *tt_buff;
81 int16_t tt_buff_len;
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82 spinlock_t tt_buff_lock; /* protects tt_buff */
83 atomic_t tt_size;
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84 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
85 * If true, then I sent a Roaming_adv to this orig_node and I have to
86 * inspect every packet directed to it to check whether it is still
87 * the true destination or not. This flag will be reset to false as
88 * soon as I receive a new TTVN from this orig_node */
89 bool tt_poss_change;
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90 uint32_t last_real_seqno;
91 uint8_t last_ttl;
92 unsigned long bcast_bits[NUM_WORDS];
93 uint32_t last_bcast_seqno;
9591a79f 94 struct hlist_head neigh_list;
c6c8fea2 95 struct list_head frag_list;
e1a5382f 96 spinlock_t neigh_list_lock; /* protects neigh_list and router */
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97 atomic_t refcount;
98 struct rcu_head rcu;
7aadf889 99 struct hlist_node hash_entry;
16b1aba8 100 struct bat_priv *bat_priv;
c6c8fea2 101 unsigned long last_frag_packet;
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102 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
103 * neigh_node->real_bits, neigh_node->real_packet_count */
104 spinlock_t ogm_cnt_lock;
105 /* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */
106 spinlock_t bcast_seqno_lock;
a73105b8 107 spinlock_t tt_list_lock; /* protects tt_list */
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108 atomic_t bond_candidates;
109 struct list_head bond_list;
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110};
111
112struct gw_node {
113 struct hlist_node list;
114 struct orig_node *orig_node;
115 unsigned long deleted;
25b6d3c1 116 atomic_t refcount;
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117 struct rcu_head rcu;
118};
119
120/**
121 * neigh_node
122 * @last_valid: when last packet via this neighbor was received
123 */
124struct neigh_node {
9591a79f 125 struct hlist_node list;
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126 uint8_t addr[ETH_ALEN];
127 uint8_t real_packet_count;
128 uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE];
129 uint8_t tq_index;
130 uint8_t tq_avg;
131 uint8_t last_ttl;
a4c135c5 132 struct list_head bonding_list;
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133 unsigned long last_valid;
134 unsigned long real_bits[NUM_WORDS];
44524fcd 135 atomic_t refcount;
f987ed6e 136 struct rcu_head rcu;
c6c8fea2 137 struct orig_node *orig_node;
e6c10f43 138 struct hard_iface *if_incoming;
68003903 139 spinlock_t tq_lock; /* protects: tq_recv, tq_index */
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140};
141
142
143struct bat_priv {
144 atomic_t mesh_state;
145 struct net_device_stats stats;
146 atomic_t aggregated_ogms; /* boolean */
147 atomic_t bonding; /* boolean */
148 atomic_t fragmentation; /* boolean */
149 atomic_t vis_mode; /* VIS_TYPE_* */
150 atomic_t gw_mode; /* GW_MODE_* */
151 atomic_t gw_sel_class; /* uint */
152 atomic_t gw_bandwidth; /* gw bandwidth */
153 atomic_t orig_interval; /* uint */
154 atomic_t hop_penalty; /* uint */
155 atomic_t log_level; /* uint */
156 atomic_t bcast_seqno;
157 atomic_t bcast_queue_left;
158 atomic_t batman_queue_left;
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159 atomic_t ttvn; /* tranlation table version number */
160 atomic_t tt_ogm_append_cnt;
161 atomic_t tt_local_changes; /* changes registered in a OGM interval */
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162 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
163 * If true, then I received a Roaming_adv and I have to inspect every
164 * packet directed to me to check whether I am still the true
165 * destination or not. This flag will be reset to false as soon as I
166 * increase my TTVN */
167 bool tt_poss_change;
c6c8fea2 168 char num_ifaces;
c6c8fea2 169 struct debug_log *debug_log;
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170 struct kobject *mesh_obj;
171 struct dentry *debug_dir;
172 struct hlist_head forw_bat_list;
173 struct hlist_head forw_bcast_list;
174 struct hlist_head gw_list;
61906ae8 175 struct hlist_head softif_neigh_vids;
a73105b8 176 struct list_head tt_changes_list; /* tracks changes in a OGM int */
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177 struct list_head vis_send_list;
178 struct hashtable_t *orig_hash;
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179 struct hashtable_t *tt_local_hash;
180 struct hashtable_t *tt_global_hash;
a73105b8 181 struct list_head tt_req_list; /* list of pending tt_requests */
cc47f66e 182 struct list_head tt_roam_list;
c6c8fea2 183 struct hashtable_t *vis_hash;
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184 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
185 spinlock_t forw_bcast_list_lock; /* protects */
a73105b8 186 spinlock_t tt_changes_list_lock; /* protects tt_changes */
a73105b8 187 spinlock_t tt_req_list_lock; /* protects tt_req_list */
cc47f66e 188 spinlock_t tt_roam_list_lock; /* protects tt_roam_list */
5d02b3cd 189 spinlock_t gw_list_lock; /* protects gw_list and curr_gw */
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190 spinlock_t vis_hash_lock; /* protects vis_hash */
191 spinlock_t vis_list_lock; /* protects vis_info::recv_list */
192 spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */
61906ae8 193 spinlock_t softif_neigh_vid_lock; /* protects soft-interface vid list */
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194 atomic_t num_local_tt;
195 /* Checksum of the local table, recomputed before sending a new OGM */
196 atomic_t tt_crc;
197 unsigned char *tt_buff;
198 int16_t tt_buff_len;
199 spinlock_t tt_buff_lock; /* protects tt_buff */
2dafb49d 200 struct delayed_work tt_work;
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201 struct delayed_work orig_work;
202 struct delayed_work vis_work;
5d02b3cd 203 struct gw_node __rcu *curr_gw; /* rcu protected pointer */
2265c141 204 atomic_t gw_reselect;
32ae9b22 205 struct hard_iface __rcu *primary_if; /* rcu protected pointer */
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206 struct vis_info *my_vis_info;
207};
208
209struct socket_client {
210 struct list_head queue_list;
211 unsigned int queue_len;
212 unsigned char index;
213 spinlock_t lock; /* protects queue_list, queue_len, index */
214 wait_queue_head_t queue_wait;
215 struct bat_priv *bat_priv;
216};
217
218struct socket_packet {
219 struct list_head list;
220 size_t icmp_len;
221 struct icmp_packet_rr icmp_packet;
222};
223
2dafb49d 224struct tt_local_entry {
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225 uint8_t addr[ETH_ALEN];
226 unsigned long last_seen;
5fbc1598 227 uint16_t flags;
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228 atomic_t refcount;
229 struct rcu_head rcu;
7aadf889 230 struct hlist_node hash_entry;
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231};
232
2dafb49d 233struct tt_global_entry {
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234 uint8_t addr[ETH_ALEN];
235 struct orig_node *orig_node;
a73105b8 236 uint8_t ttvn;
5fbc1598 237 uint16_t flags; /* only TT_GLOBAL_ROAM is used */
cc47f66e 238 unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */
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239 atomic_t refcount;
240 struct rcu_head rcu;
cc47f66e 241 struct hlist_node hash_entry; /* entry in the global table */
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242};
243
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244struct tt_change_node {
245 struct list_head list;
246 struct tt_change change;
247};
248
249struct tt_req_node {
250 uint8_t addr[ETH_ALEN];
251 unsigned long issued_at;
252 struct list_head list;
253};
254
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255struct tt_roam_node {
256 uint8_t addr[ETH_ALEN];
257 atomic_t counter;
258 unsigned long first_time;
259 struct list_head list;
260};
261
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262/**
263 * forw_packet - structure for forw_list maintaining packets to be
264 * send/forwarded
265 */
266struct forw_packet {
267 struct hlist_node list;
268 unsigned long send_time;
269 uint8_t own;
270 struct sk_buff *skb;
271 uint16_t packet_len;
272 uint32_t direct_link_flags;
273 uint8_t num_packets;
274 struct delayed_work delayed_work;
e6c10f43 275 struct hard_iface *if_incoming;
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276};
277
278/* While scanning for vis-entries of a particular vis-originator
279 * this list collects its interfaces to create a subgraph/cluster
280 * out of them later
281 */
282struct if_list_entry {
283 uint8_t addr[ETH_ALEN];
284 bool primary;
285 struct hlist_node list;
286};
287
288struct debug_log {
289 char log_buff[LOG_BUF_LEN];
290 unsigned long log_start;
291 unsigned long log_end;
292 spinlock_t lock; /* protects log_buff, log_start and log_end */
293 wait_queue_head_t queue_wait;
294};
295
296struct frag_packet_list_entry {
297 struct list_head list;
298 uint16_t seqno;
299 struct sk_buff *skb;
300};
301
302struct vis_info {
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303 unsigned long first_seen;
304 /* list of server-neighbors we received a vis-packet
305 * from. we should not reply to them. */
306 struct list_head recv_list;
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307 struct list_head send_list;
308 struct kref refcount;
7aadf889 309 struct hlist_node hash_entry;
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310 struct bat_priv *bat_priv;
311 /* this packet might be part of the vis send queue. */
312 struct sk_buff *skb_packet;
313 /* vis_info may follow here*/
aa0adb1a 314} __packed;
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315
316struct vis_info_entry {
317 uint8_t src[ETH_ALEN];
318 uint8_t dest[ETH_ALEN];
2dafb49d 319 uint8_t quality; /* quality = 0 client */
aa0adb1a 320} __packed;
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321
322struct recvlist_node {
323 struct list_head list;
324 uint8_t mac[ETH_ALEN];
325};
326
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327struct softif_neigh_vid {
328 struct hlist_node list;
329 struct bat_priv *bat_priv;
330 short vid;
331 atomic_t refcount;
332 struct softif_neigh __rcu *softif_neigh;
333 struct rcu_head rcu;
334 struct hlist_head softif_neigh_list;
335};
336
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337struct softif_neigh {
338 struct hlist_node list;
339 uint8_t addr[ETH_ALEN];
340 unsigned long last_seen;
7d2b5548 341 atomic_t refcount;
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342 struct rcu_head rcu;
343};
344
345#endif /* _NET_BATMAN_ADV_TYPES_H_ */