1 /* 2 * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors: 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 hard_iface { 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 atomic_t 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 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; 78 unsigned char *hna_buff; 79 int16_t hna_buff_len; 80 uint32_t last_real_seqno; 81 uint8_t last_ttl; 82 unsigned long bcast_bits[NUM_WORDS]; 83 uint32_t last_bcast_seqno; 84 struct hlist_head neigh_list; 85 struct list_head frag_list; 86 spinlock_t neigh_list_lock; /* protects neighbor list */ 87 atomic_t refcount; 88 struct rcu_head rcu; 89 struct hlist_node hash_entry; 90 struct bat_priv *bat_priv; 91 unsigned long last_frag_packet; 92 spinlock_t ogm_cnt_lock; /* protects: bcast_own, bcast_own_sum, 93 * neigh_node->real_bits, 94 * neigh_node->real_packet_count */ 95 spinlock_t bcast_seqno_lock; /* protects bcast_bits, 96 * last_bcast_seqno */ 97 atomic_t bond_candidates; 98 struct list_head bond_list; 99 }; 100 101 struct gw_node { 102 struct hlist_node list; 103 struct orig_node *orig_node; 104 unsigned long deleted; 105 atomic_t refcount; 106 struct rcu_head rcu; 107 }; 108 109 /** 110 * neigh_node 111 * @last_valid: when last packet via this neighbor was received 112 */ 113 struct neigh_node { 114 struct hlist_node list; 115 uint8_t addr[ETH_ALEN]; 116 uint8_t real_packet_count; 117 uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE]; 118 uint8_t tq_index; 119 uint8_t tq_avg; 120 uint8_t last_ttl; 121 struct list_head bonding_list; 122 unsigned long last_valid; 123 unsigned long real_bits[NUM_WORDS]; 124 atomic_t refcount; 125 struct rcu_head rcu; 126 struct orig_node *orig_node; 127 struct hard_iface *if_incoming; 128 }; 129 130 131 struct bat_priv { 132 atomic_t mesh_state; 133 struct net_device_stats stats; 134 atomic_t aggregated_ogms; /* boolean */ 135 atomic_t bonding; /* boolean */ 136 atomic_t fragmentation; /* boolean */ 137 atomic_t vis_mode; /* VIS_TYPE_* */ 138 atomic_t gw_mode; /* GW_MODE_* */ 139 atomic_t gw_sel_class; /* uint */ 140 atomic_t gw_bandwidth; /* gw bandwidth */ 141 atomic_t orig_interval; /* uint */ 142 atomic_t hop_penalty; /* uint */ 143 atomic_t log_level; /* uint */ 144 atomic_t bcast_seqno; 145 atomic_t bcast_queue_left; 146 atomic_t batman_queue_left; 147 char num_ifaces; 148 struct hlist_head softif_neigh_list; 149 struct softif_neigh *softif_neigh; 150 struct debug_log *debug_log; 151 struct hard_iface *primary_if; 152 struct kobject *mesh_obj; 153 struct dentry *debug_dir; 154 struct hlist_head forw_bat_list; 155 struct hlist_head forw_bcast_list; 156 struct hlist_head gw_list; 157 struct list_head vis_send_list; 158 struct hashtable_t *orig_hash; 159 struct hashtable_t *hna_local_hash; 160 struct hashtable_t *hna_global_hash; 161 struct hashtable_t *vis_hash; 162 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ 163 spinlock_t forw_bcast_list_lock; /* protects */ 164 spinlock_t hna_lhash_lock; /* protects hna_local_hash */ 165 spinlock_t hna_ghash_lock; /* protects hna_global_hash */ 166 spinlock_t gw_list_lock; /* protects gw_list and curr_gw */ 167 spinlock_t vis_hash_lock; /* protects vis_hash */ 168 spinlock_t vis_list_lock; /* protects vis_info::recv_list */ 169 spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */ 170 int16_t num_local_hna; 171 atomic_t hna_local_changed; 172 struct delayed_work hna_work; 173 struct delayed_work orig_work; 174 struct delayed_work vis_work; 175 struct gw_node __rcu *curr_gw; /* rcu protected pointer */ 176 struct vis_info *my_vis_info; 177 }; 178 179 struct socket_client { 180 struct list_head queue_list; 181 unsigned int queue_len; 182 unsigned char index; 183 spinlock_t lock; /* protects queue_list, queue_len, index */ 184 wait_queue_head_t queue_wait; 185 struct bat_priv *bat_priv; 186 }; 187 188 struct socket_packet { 189 struct list_head list; 190 size_t icmp_len; 191 struct icmp_packet_rr icmp_packet; 192 }; 193 194 struct hna_local_entry { 195 uint8_t addr[ETH_ALEN]; 196 unsigned long last_seen; 197 char never_purge; 198 struct hlist_node hash_entry; 199 }; 200 201 struct hna_global_entry { 202 uint8_t addr[ETH_ALEN]; 203 struct orig_node *orig_node; 204 struct hlist_node hash_entry; 205 }; 206 207 /** 208 * forw_packet - structure for forw_list maintaining packets to be 209 * send/forwarded 210 */ 211 struct forw_packet { 212 struct hlist_node list; 213 unsigned long send_time; 214 uint8_t own; 215 struct sk_buff *skb; 216 uint16_t packet_len; 217 uint32_t direct_link_flags; 218 uint8_t num_packets; 219 struct delayed_work delayed_work; 220 struct hard_iface *if_incoming; 221 }; 222 223 /* While scanning for vis-entries of a particular vis-originator 224 * this list collects its interfaces to create a subgraph/cluster 225 * out of them later 226 */ 227 struct if_list_entry { 228 uint8_t addr[ETH_ALEN]; 229 bool primary; 230 struct hlist_node list; 231 }; 232 233 struct debug_log { 234 char log_buff[LOG_BUF_LEN]; 235 unsigned long log_start; 236 unsigned long log_end; 237 spinlock_t lock; /* protects log_buff, log_start and log_end */ 238 wait_queue_head_t queue_wait; 239 }; 240 241 struct frag_packet_list_entry { 242 struct list_head list; 243 uint16_t seqno; 244 struct sk_buff *skb; 245 }; 246 247 struct vis_info { 248 unsigned long first_seen; 249 struct list_head recv_list; 250 /* list of server-neighbors we received a vis-packet 251 * from. we should not reply to them. */ 252 struct list_head send_list; 253 struct kref refcount; 254 struct hlist_node hash_entry; 255 struct bat_priv *bat_priv; 256 /* this packet might be part of the vis send queue. */ 257 struct sk_buff *skb_packet; 258 /* vis_info may follow here*/ 259 } __packed; 260 261 struct vis_info_entry { 262 uint8_t src[ETH_ALEN]; 263 uint8_t dest[ETH_ALEN]; 264 uint8_t quality; /* quality = 0 means HNA */ 265 } __packed; 266 267 struct recvlist_node { 268 struct list_head list; 269 uint8_t mac[ETH_ALEN]; 270 }; 271 272 struct softif_neigh { 273 struct hlist_node list; 274 uint8_t addr[ETH_ALEN]; 275 unsigned long last_seen; 276 short vid; 277 atomic_t refcount; 278 struct rcu_head rcu; 279 }; 280 281 #endif /* _NET_BATMAN_ADV_TYPES_H_ */ 282