types.h revision 0ede9f41b217d8982ab426e3c8c1b692a280a16f
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 36struct 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 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 */ 67struct 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 struct kref refcount; 88 struct bat_priv *bat_priv; 89 unsigned long last_frag_packet; 90 spinlock_t ogm_cnt_lock; /* protects: bcast_own, bcast_own_sum, 91 * neigh_node->real_bits, 92 * neigh_node->real_packet_count */ 93 atomic_t bond_candidates; 94 struct list_head bond_list; 95}; 96 97struct gw_node { 98 struct hlist_node list; 99 struct orig_node *orig_node; 100 unsigned long deleted; 101 atomic_t refcount; 102 struct rcu_head rcu; 103}; 104 105/** 106 * neigh_node 107 * @last_valid: when last packet via this neighbor was received 108 */ 109struct neigh_node { 110 struct hlist_node list; 111 uint8_t addr[ETH_ALEN]; 112 uint8_t real_packet_count; 113 uint8_t tq_recv[TQ_GLOBAL_WINDOW_SIZE]; 114 uint8_t tq_index; 115 uint8_t tq_avg; 116 uint8_t last_ttl; 117 struct list_head bonding_list; 118 unsigned long last_valid; 119 unsigned long real_bits[NUM_WORDS]; 120 atomic_t refcount; 121 struct rcu_head rcu; 122 struct orig_node *orig_node; 123 struct batman_if *if_incoming; 124}; 125 126 127struct bat_priv { 128 atomic_t mesh_state; 129 struct net_device_stats stats; 130 atomic_t aggregated_ogms; /* boolean */ 131 atomic_t bonding; /* boolean */ 132 atomic_t fragmentation; /* boolean */ 133 atomic_t vis_mode; /* VIS_TYPE_* */ 134 atomic_t gw_mode; /* GW_MODE_* */ 135 atomic_t gw_sel_class; /* uint */ 136 atomic_t gw_bandwidth; /* gw bandwidth */ 137 atomic_t orig_interval; /* uint */ 138 atomic_t hop_penalty; /* uint */ 139 atomic_t log_level; /* uint */ 140 atomic_t bcast_seqno; 141 atomic_t bcast_queue_left; 142 atomic_t batman_queue_left; 143 char num_ifaces; 144 struct hlist_head softif_neigh_list; 145 struct softif_neigh *softif_neigh; 146 struct debug_log *debug_log; 147 struct batman_if *primary_if; 148 struct kobject *mesh_obj; 149 struct dentry *debug_dir; 150 struct hlist_head forw_bat_list; 151 struct hlist_head forw_bcast_list; 152 struct hlist_head gw_list; 153 struct list_head vis_send_list; 154 struct hashtable_t *orig_hash; 155 struct hashtable_t *hna_local_hash; 156 struct hashtable_t *hna_global_hash; 157 struct hashtable_t *vis_hash; 158 spinlock_t orig_hash_lock; /* protects orig_hash */ 159 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ 160 spinlock_t forw_bcast_list_lock; /* protects */ 161 spinlock_t hna_lhash_lock; /* protects hna_local_hash */ 162 spinlock_t hna_ghash_lock; /* protects hna_global_hash */ 163 spinlock_t gw_list_lock; /* protects gw_list */ 164 spinlock_t vis_hash_lock; /* protects vis_hash */ 165 spinlock_t vis_list_lock; /* protects vis_info::recv_list */ 166 spinlock_t softif_neigh_lock; /* protects soft-interface neigh list */ 167 int16_t num_local_hna; 168 atomic_t hna_local_changed; 169 struct delayed_work hna_work; 170 struct delayed_work orig_work; 171 struct delayed_work vis_work; 172 struct gw_node *curr_gw; 173 struct vis_info *my_vis_info; 174}; 175 176struct socket_client { 177 struct list_head queue_list; 178 unsigned int queue_len; 179 unsigned char index; 180 spinlock_t lock; /* protects queue_list, queue_len, index */ 181 wait_queue_head_t queue_wait; 182 struct bat_priv *bat_priv; 183}; 184 185struct socket_packet { 186 struct list_head list; 187 size_t icmp_len; 188 struct icmp_packet_rr icmp_packet; 189}; 190 191struct hna_local_entry { 192 uint8_t addr[ETH_ALEN]; 193 unsigned long last_seen; 194 char never_purge; 195}; 196 197struct hna_global_entry { 198 uint8_t addr[ETH_ALEN]; 199 struct orig_node *orig_node; 200}; 201 202/** 203 * forw_packet - structure for forw_list maintaining packets to be 204 * send/forwarded 205 */ 206struct forw_packet { 207 struct hlist_node list; 208 unsigned long send_time; 209 uint8_t own; 210 struct sk_buff *skb; 211 uint16_t packet_len; 212 uint32_t direct_link_flags; 213 uint8_t num_packets; 214 struct delayed_work delayed_work; 215 struct batman_if *if_incoming; 216}; 217 218/* While scanning for vis-entries of a particular vis-originator 219 * this list collects its interfaces to create a subgraph/cluster 220 * out of them later 221 */ 222struct if_list_entry { 223 uint8_t addr[ETH_ALEN]; 224 bool primary; 225 struct hlist_node list; 226}; 227 228struct debug_log { 229 char log_buff[LOG_BUF_LEN]; 230 unsigned long log_start; 231 unsigned long log_end; 232 spinlock_t lock; /* protects log_buff, log_start and log_end */ 233 wait_queue_head_t queue_wait; 234}; 235 236struct frag_packet_list_entry { 237 struct list_head list; 238 uint16_t seqno; 239 struct sk_buff *skb; 240}; 241 242struct vis_info { 243 unsigned long first_seen; 244 struct list_head recv_list; 245 /* list of server-neighbors we received a vis-packet 246 * from. we should not reply to them. */ 247 struct list_head send_list; 248 struct kref refcount; 249 struct bat_priv *bat_priv; 250 /* this packet might be part of the vis send queue. */ 251 struct sk_buff *skb_packet; 252 /* vis_info may follow here*/ 253} __packed; 254 255struct vis_info_entry { 256 uint8_t src[ETH_ALEN]; 257 uint8_t dest[ETH_ALEN]; 258 uint8_t quality; /* quality = 0 means HNA */ 259} __packed; 260 261struct recvlist_node { 262 struct list_head list; 263 uint8_t mac[ETH_ALEN]; 264}; 265 266struct softif_neigh { 267 struct hlist_node list; 268 uint8_t addr[ETH_ALEN]; 269 unsigned long last_seen; 270 short vid; 271 atomic_t refcount; 272 struct rcu_head rcu; 273}; 274 275#endif /* _NET_BATMAN_ADV_TYPES_H_ */ 276