1 /* 2 * Copyright (C) 2007-2010 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 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*/ 249 } __packed; 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 */ 255 } __packed; 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_ */ 272