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c6c8fea2 | 1 | /* |
64afe353 | 2 | * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
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 | ||
36 | struct batman_if { | |
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; | |
46 | struct kref refcount; | |
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 | */ | |
67 | struct orig_node { | |
68 | uint8_t orig[ETH_ALEN]; | |
69 | uint8_t primary_addr[ETH_ALEN]; | |
70 | struct neigh_node *router; | |
71 | unsigned long *bcast_own; | |
72 | uint8_t *bcast_own_sum; | |
73 | uint8_t tq_own; | |
74 | int tq_asym_penalty; | |
75 | unsigned long last_valid; | |
76 | unsigned long bcast_seqno_reset; | |
77 | unsigned long batman_seqno_reset; | |
78 | uint8_t gw_flags; | |
79 | uint8_t flags; | |
80 | unsigned char *hna_buff; | |
81 | int16_t hna_buff_len; | |
82 | uint32_t last_real_seqno; | |
83 | uint8_t last_ttl; | |
84 | unsigned long bcast_bits[NUM_WORDS]; | |
85 | uint32_t last_bcast_seqno; | |
86 | struct list_head neigh_list; | |
87 | struct list_head frag_list; | |
88 | unsigned long last_frag_packet; | |
89 | struct { | |
90 | uint8_t candidates; | |
91 | struct neigh_node *selected; | |
92 | } bond; | |
93 | }; | |
94 | ||
95 | struct gw_node { | |
96 | struct hlist_node list; | |
97 | struct orig_node *orig_node; | |
98 | unsigned long deleted; | |
99 | struct kref refcount; | |
100 | struct rcu_head rcu; | |
101 | }; | |
102 | ||
103 | /** | |
104 | * neigh_node | |
105 | * @last_valid: when last packet via this neighbor was received | |
106 | */ | |
107 | struct neigh_node { | |
108 | struct list_head list; | |
109 | uint8_t addr[ETH_ALEN]; | |
110 | uint8_t real_packet_count; | |
111 | uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE]; | |
112 | uint8_t tq_index; | |
113 | uint8_t tq_avg; | |
114 | uint8_t last_ttl; | |
115 | struct neigh_node *next_bond_candidate; | |
116 | unsigned long last_valid; | |
117 | unsigned long real_bits[NUM_WORDS]; | |
118 | struct orig_node *orig_node; | |
119 | struct batman_if *if_incoming; | |
120 | }; | |
121 | ||
122 | ||
123 | struct bat_priv { | |
124 | atomic_t mesh_state; | |
125 | struct net_device_stats stats; | |
126 | atomic_t aggregated_ogms; /* boolean */ | |
127 | atomic_t bonding; /* boolean */ | |
128 | atomic_t fragmentation; /* boolean */ | |
129 | atomic_t vis_mode; /* VIS_TYPE_* */ | |
130 | atomic_t gw_mode; /* GW_MODE_* */ | |
131 | atomic_t gw_sel_class; /* uint */ | |
132 | atomic_t gw_bandwidth; /* gw bandwidth */ | |
133 | atomic_t orig_interval; /* uint */ | |
134 | atomic_t hop_penalty; /* uint */ | |
135 | atomic_t log_level; /* uint */ | |
136 | atomic_t bcast_seqno; | |
137 | atomic_t bcast_queue_left; | |
138 | atomic_t batman_queue_left; | |
139 | char num_ifaces; | |
140 | struct hlist_head softif_neigh_list; | |
141 | struct softif_neigh *softif_neigh; | |
142 | struct debug_log *debug_log; | |
143 | struct batman_if *primary_if; | |
144 | struct kobject *mesh_obj; | |
145 | struct dentry *debug_dir; | |
146 | struct hlist_head forw_bat_list; | |
147 | struct hlist_head forw_bcast_list; | |
148 | struct hlist_head gw_list; | |
149 | struct list_head vis_send_list; | |
150 | struct hashtable_t *orig_hash; | |
151 | struct hashtable_t *hna_local_hash; | |
152 | struct hashtable_t *hna_global_hash; | |
153 | struct hashtable_t *vis_hash; | |
154 | spinlock_t orig_hash_lock; /* protects orig_hash */ | |
155 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ | |
156 | spinlock_t forw_bcast_list_lock; /* protects */ | |
157 | spinlock_t hna_lhash_lock; /* protects hna_local_hash */ | |
158 | spinlock_t hna_ghash_lock; /* protects hna_global_hash */ | |
159 | spinlock_t gw_list_lock; /* protects gw_list */ | |
160 | spinlock_t vis_hash_lock; /* protects vis_hash */ | |
161 | spinlock_t vis_list_lock; /* protects vis_info::recv_list */ | |
162 | spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */ | |
163 | int16_t num_local_hna; | |
164 | atomic_t hna_local_changed; | |
165 | struct delayed_work hna_work; | |
166 | struct delayed_work orig_work; | |
167 | struct delayed_work vis_work; | |
168 | struct gw_node *curr_gw; | |
169 | struct vis_info *my_vis_info; | |
170 | }; | |
171 | ||
172 | struct socket_client { | |
173 | struct list_head queue_list; | |
174 | unsigned int queue_len; | |
175 | unsigned char index; | |
176 | spinlock_t lock; /* protects queue_list, queue_len, index */ | |
177 | wait_queue_head_t queue_wait; | |
178 | struct bat_priv *bat_priv; | |
179 | }; | |
180 | ||
181 | struct socket_packet { | |
182 | struct list_head list; | |
183 | size_t icmp_len; | |
184 | struct icmp_packet_rr icmp_packet; | |
185 | }; | |
186 | ||
187 | struct hna_local_entry { | |
188 | uint8_t addr[ETH_ALEN]; | |
189 | unsigned long last_seen; | |
190 | char never_purge; | |
191 | }; | |
192 | ||
193 | struct hna_global_entry { | |
194 | uint8_t addr[ETH_ALEN]; | |
195 | struct orig_node *orig_node; | |
196 | }; | |
197 | ||
198 | /** | |
199 | * forw_packet - structure for forw_list maintaining packets to be | |
200 | * send/forwarded | |
201 | */ | |
202 | struct forw_packet { | |
203 | struct hlist_node list; | |
204 | unsigned long send_time; | |
205 | uint8_t own; | |
206 | struct sk_buff *skb; | |
207 | uint16_t packet_len; | |
208 | uint32_t direct_link_flags; | |
209 | uint8_t num_packets; | |
210 | struct delayed_work delayed_work; | |
211 | struct batman_if *if_incoming; | |
212 | }; | |
213 | ||
214 | /* While scanning for vis-entries of a particular vis-originator | |
215 | * this list collects its interfaces to create a subgraph/cluster | |
216 | * out of them later | |
217 | */ | |
218 | struct if_list_entry { | |
219 | uint8_t addr[ETH_ALEN]; | |
220 | bool primary; | |
221 | struct hlist_node list; | |
222 | }; | |
223 | ||
224 | struct debug_log { | |
225 | char log_buff[LOG_BUF_LEN]; | |
226 | unsigned long log_start; | |
227 | unsigned long log_end; | |
228 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
229 | wait_queue_head_t queue_wait; | |
230 | }; | |
231 | ||
232 | struct frag_packet_list_entry { | |
233 | struct list_head list; | |
234 | uint16_t seqno; | |
235 | struct sk_buff *skb; | |
236 | }; | |
237 | ||
238 | struct vis_info { | |
239 | unsigned long first_seen; | |
240 | struct list_head recv_list; | |
241 | /* list of server-neighbors we received a vis-packet | |
242 | * from. we should not reply to them. */ | |
243 | struct list_head send_list; | |
244 | struct kref refcount; | |
245 | struct bat_priv *bat_priv; | |
246 | /* this packet might be part of the vis send queue. */ | |
247 | struct sk_buff *skb_packet; | |
248 | /* vis_info may follow here*/ | |
aa0adb1a | 249 | } __packed; |
c6c8fea2 SE |
250 | |
251 | struct vis_info_entry { | |
252 | uint8_t src[ETH_ALEN]; | |
253 | uint8_t dest[ETH_ALEN]; | |
254 | uint8_t quality; /* quality = 0 means HNA */ | |
aa0adb1a | 255 | } __packed; |
c6c8fea2 SE |
256 | |
257 | struct recvlist_node { | |
258 | struct list_head list; | |
259 | uint8_t mac[ETH_ALEN]; | |
260 | }; | |
261 | ||
262 | struct softif_neigh { | |
263 | struct hlist_node list; | |
264 | uint8_t addr[ETH_ALEN]; | |
265 | unsigned long last_seen; | |
266 | short vid; | |
267 | struct kref refcount; | |
268 | struct rcu_head rcu; | |
269 | }; | |
270 | ||
271 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |