1 /* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: 2 * 3 * Marek Lindner, Simon Wunderlich 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of version 2 of the GNU General Public 7 * License as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef _NET_BATMAN_ADV_TYPES_H_ 19 #define _NET_BATMAN_ADV_TYPES_H_ 20 21 #ifndef _NET_BATMAN_ADV_MAIN_H_ 22 #error only "main.h" can be included directly 23 #endif 24 25 #include <linux/average.h> 26 #include <linux/bitops.h> 27 #include <linux/compiler.h> 28 #include <linux/if_ether.h> 29 #include <linux/kref.h> 30 #include <linux/netdevice.h> 31 #include <linux/netlink.h> 32 #include <linux/sched.h> /* for linux/wait.h */ 33 #include <linux/spinlock.h> 34 #include <linux/types.h> 35 #include <linux/wait.h> 36 #include <linux/workqueue.h> 37 #include <uapi/linux/batman_adv.h> 38 39 #include "packet.h" 40 41 struct seq_file; 42 43 #ifdef CONFIG_BATMAN_ADV_DAT 44 45 /** 46 * batadv_dat_addr_t - it is the type used for all DHT addresses. If it is 47 * changed, BATADV_DAT_ADDR_MAX is changed as well. 48 * 49 * *Please be careful: batadv_dat_addr_t must be UNSIGNED* 50 */ 51 #define batadv_dat_addr_t u16 52 53 #endif /* CONFIG_BATMAN_ADV_DAT */ 54 55 /** 56 * enum batadv_dhcp_recipient - dhcp destination 57 * @BATADV_DHCP_NO: packet is not a dhcp message 58 * @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server 59 * @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client 60 */ 61 enum batadv_dhcp_recipient { 62 BATADV_DHCP_NO = 0, 63 BATADV_DHCP_TO_SERVER, 64 BATADV_DHCP_TO_CLIENT, 65 }; 66 67 /** 68 * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the 69 * wire only 70 */ 71 #define BATADV_TT_REMOTE_MASK 0x00FF 72 73 /** 74 * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync 75 * among the nodes. These flags are used to compute the global/local CRC 76 */ 77 #define BATADV_TT_SYNC_MASK 0x00F0 78 79 /** 80 * struct batadv_hard_iface_bat_iv - per hard-interface B.A.T.M.A.N. IV data 81 * @ogm_buff: buffer holding the OGM packet 82 * @ogm_buff_len: length of the OGM packet buffer 83 * @ogm_seqno: OGM sequence number - used to identify each OGM 84 */ 85 struct batadv_hard_iface_bat_iv { 86 unsigned char *ogm_buff; 87 int ogm_buff_len; 88 atomic_t ogm_seqno; 89 }; 90 91 /** 92 * enum batadv_v_hard_iface_flags - interface flags useful to B.A.T.M.A.N. V 93 * @BATADV_FULL_DUPLEX: tells if the connection over this link is full-duplex 94 * @BATADV_WARNING_DEFAULT: tells whether we have warned the user that no 95 * throughput data is available for this interface and that default values are 96 * assumed. 97 */ 98 enum batadv_v_hard_iface_flags { 99 BATADV_FULL_DUPLEX = BIT(0), 100 BATADV_WARNING_DEFAULT = BIT(1), 101 }; 102 103 /** 104 * struct batadv_hard_iface_bat_v - per hard-interface B.A.T.M.A.N. V data 105 * @elp_interval: time interval between two ELP transmissions 106 * @elp_seqno: current ELP sequence number 107 * @elp_skb: base skb containing the ELP message to send 108 * @elp_wq: workqueue used to schedule ELP transmissions 109 * @throughput_override: throughput override to disable link auto-detection 110 * @flags: interface specific flags 111 */ 112 struct batadv_hard_iface_bat_v { 113 atomic_t elp_interval; 114 atomic_t elp_seqno; 115 struct sk_buff *elp_skb; 116 struct delayed_work elp_wq; 117 atomic_t throughput_override; 118 u8 flags; 119 }; 120 121 /** 122 * enum batadv_hard_iface_wifi_flags - Flags describing the wifi configuration 123 * of a batadv_hard_iface 124 * @BATADV_HARDIF_WIFI_WEXT_DIRECT: it is a wext wifi device 125 * @BATADV_HARDIF_WIFI_CFG80211_DIRECT: it is a cfg80211 wifi device 126 * @BATADV_HARDIF_WIFI_WEXT_INDIRECT: link device is a wext wifi device 127 * @BATADV_HARDIF_WIFI_CFG80211_INDIRECT: link device is a cfg80211 wifi device 128 */ 129 enum batadv_hard_iface_wifi_flags { 130 BATADV_HARDIF_WIFI_WEXT_DIRECT = BIT(0), 131 BATADV_HARDIF_WIFI_CFG80211_DIRECT = BIT(1), 132 BATADV_HARDIF_WIFI_WEXT_INDIRECT = BIT(2), 133 BATADV_HARDIF_WIFI_CFG80211_INDIRECT = BIT(3), 134 }; 135 136 /** 137 * struct batadv_hard_iface - network device known to batman-adv 138 * @list: list node for batadv_hardif_list 139 * @if_num: identificator of the interface 140 * @if_status: status of the interface for batman-adv 141 * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) 142 * @wifi_flags: flags whether this is (directly or indirectly) a wifi interface 143 * @net_dev: pointer to the net_device 144 * @hardif_obj: kobject of the per interface sysfs "mesh" directory 145 * @refcount: number of contexts the object is used 146 * @batman_adv_ptype: packet type describing packets that should be processed by 147 * batman-adv for this interface 148 * @soft_iface: the batman-adv interface which uses this network interface 149 * @rcu: struct used for freeing in an RCU-safe manner 150 * @bat_iv: per hard-interface B.A.T.M.A.N. IV data 151 * @bat_v: per hard-interface B.A.T.M.A.N. V data 152 * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs 153 * @neigh_list: list of unique single hop neighbors via this interface 154 * @neigh_list_lock: lock protecting neigh_list 155 */ 156 struct batadv_hard_iface { 157 struct list_head list; 158 s16 if_num; 159 char if_status; 160 u8 num_bcasts; 161 u32 wifi_flags; 162 struct net_device *net_dev; 163 struct kobject *hardif_obj; 164 struct kref refcount; 165 struct packet_type batman_adv_ptype; 166 struct net_device *soft_iface; 167 struct rcu_head rcu; 168 struct batadv_hard_iface_bat_iv bat_iv; 169 #ifdef CONFIG_BATMAN_ADV_BATMAN_V 170 struct batadv_hard_iface_bat_v bat_v; 171 #endif 172 struct dentry *debug_dir; 173 struct hlist_head neigh_list; 174 /* neigh_list_lock protects: neigh_list */ 175 spinlock_t neigh_list_lock; 176 }; 177 178 /** 179 * struct batadv_orig_ifinfo - originator info per outgoing interface 180 * @list: list node for orig_node::ifinfo_list 181 * @if_outgoing: pointer to outgoing hard-interface 182 * @router: router that should be used to reach this originator 183 * @last_real_seqno: last and best known sequence number 184 * @last_ttl: ttl of last received packet 185 * @last_seqno_forwarded: seqno of the OGM which was forwarded last 186 * @batman_seqno_reset: time when the batman seqno window was reset 187 * @refcount: number of contexts the object is used 188 * @rcu: struct used for freeing in an RCU-safe manner 189 */ 190 struct batadv_orig_ifinfo { 191 struct hlist_node list; 192 struct batadv_hard_iface *if_outgoing; 193 struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ 194 u32 last_real_seqno; 195 u8 last_ttl; 196 u32 last_seqno_forwarded; 197 unsigned long batman_seqno_reset; 198 struct kref refcount; 199 struct rcu_head rcu; 200 }; 201 202 /** 203 * struct batadv_frag_table_entry - head in the fragment buffer table 204 * @fragment_list: head of list with fragments 205 * @lock: lock to protect the list of fragments 206 * @timestamp: time (jiffie) of last received fragment 207 * @seqno: sequence number of the fragments in the list 208 * @size: accumulated size of packets in list 209 * @total_size: expected size of the assembled packet 210 */ 211 struct batadv_frag_table_entry { 212 struct hlist_head fragment_list; 213 spinlock_t lock; /* protects fragment_list */ 214 unsigned long timestamp; 215 u16 seqno; 216 u16 size; 217 u16 total_size; 218 }; 219 220 /** 221 * struct batadv_frag_list_entry - entry in a list of fragments 222 * @list: list node information 223 * @skb: fragment 224 * @no: fragment number in the set 225 */ 226 struct batadv_frag_list_entry { 227 struct hlist_node list; 228 struct sk_buff *skb; 229 u8 no; 230 }; 231 232 /** 233 * struct batadv_vlan_tt - VLAN specific TT attributes 234 * @crc: CRC32 checksum of the entries belonging to this vlan 235 * @num_entries: number of TT entries for this VLAN 236 */ 237 struct batadv_vlan_tt { 238 u32 crc; 239 atomic_t num_entries; 240 }; 241 242 /** 243 * struct batadv_orig_node_vlan - VLAN specific data per orig_node 244 * @vid: the VLAN identifier 245 * @tt: VLAN specific TT attributes 246 * @list: list node for orig_node::vlan_list 247 * @refcount: number of context where this object is currently in use 248 * @rcu: struct used for freeing in a RCU-safe manner 249 */ 250 struct batadv_orig_node_vlan { 251 unsigned short vid; 252 struct batadv_vlan_tt tt; 253 struct hlist_node list; 254 struct kref refcount; 255 struct rcu_head rcu; 256 }; 257 258 /** 259 * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members 260 * @bcast_own: set of bitfields (one per hard-interface) where each one counts 261 * the number of our OGMs this orig_node rebroadcasted "back" to us (relative 262 * to last_real_seqno). Every bitfield is BATADV_TQ_LOCAL_WINDOW_SIZE bits long. 263 * @bcast_own_sum: sum of bcast_own 264 * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, 265 * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count 266 */ 267 struct batadv_orig_bat_iv { 268 unsigned long *bcast_own; 269 u8 *bcast_own_sum; 270 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, 271 * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count 272 */ 273 spinlock_t ogm_cnt_lock; 274 }; 275 276 /** 277 * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh 278 * @orig: originator ethernet address 279 * @ifinfo_list: list for routers per outgoing interface 280 * @last_bonding_candidate: pointer to last ifinfo of last used router 281 * @dat_addr: address of the orig node in the distributed hash 282 * @last_seen: time when last packet from this node was received 283 * @bcast_seqno_reset: time when the broadcast seqno window was reset 284 * @mcast_handler_lock: synchronizes mcast-capability and -flag changes 285 * @mcast_flags: multicast flags announced by the orig node 286 * @mcast_want_all_unsnoopables_node: a list node for the 287 * mcast.want_all_unsnoopables list 288 * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4 list 289 * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6 list 290 * @capabilities: announced capabilities of this originator 291 * @capa_initialized: bitfield to remember whether a capability was initialized 292 * @last_ttvn: last seen translation table version number 293 * @tt_buff: last tt changeset this node received from the orig node 294 * @tt_buff_len: length of the last tt changeset this node received from the 295 * orig node 296 * @tt_buff_lock: lock that protects tt_buff and tt_buff_len 297 * @tt_lock: prevents from updating the table while reading it. Table update is 298 * made up by two operations (data structure update and metdata -CRC/TTVN- 299 * recalculation) and they have to be executed atomically in order to avoid 300 * another thread to read the table/metadata between those. 301 * @bcast_bits: bitfield containing the info which payload broadcast originated 302 * from this orig node this host already has seen (relative to 303 * last_bcast_seqno) 304 * @last_bcast_seqno: last broadcast sequence number received by this host 305 * @neigh_list: list of potential next hop neighbor towards this orig node 306 * @neigh_list_lock: lock protecting neigh_list and router 307 * @hash_entry: hlist node for batadv_priv::orig_hash 308 * @bat_priv: pointer to soft_iface this orig node belongs to 309 * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno 310 * @refcount: number of contexts the object is used 311 * @rcu: struct used for freeing in an RCU-safe manner 312 * @in_coding_list: list of nodes this orig can hear 313 * @out_coding_list: list of nodes that can hear this orig 314 * @in_coding_list_lock: protects in_coding_list 315 * @out_coding_list_lock: protects out_coding_list 316 * @fragments: array with heads for fragment chains 317 * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the 318 * originator represented by this object 319 * @vlan_list_lock: lock protecting vlan_list 320 * @bat_iv: B.A.T.M.A.N. IV private structure 321 */ 322 struct batadv_orig_node { 323 u8 orig[ETH_ALEN]; 324 struct hlist_head ifinfo_list; 325 struct batadv_orig_ifinfo *last_bonding_candidate; 326 #ifdef CONFIG_BATMAN_ADV_DAT 327 batadv_dat_addr_t dat_addr; 328 #endif 329 unsigned long last_seen; 330 unsigned long bcast_seqno_reset; 331 #ifdef CONFIG_BATMAN_ADV_MCAST 332 /* synchronizes mcast tvlv specific orig changes */ 333 spinlock_t mcast_handler_lock; 334 u8 mcast_flags; 335 struct hlist_node mcast_want_all_unsnoopables_node; 336 struct hlist_node mcast_want_all_ipv4_node; 337 struct hlist_node mcast_want_all_ipv6_node; 338 #endif 339 unsigned long capabilities; 340 unsigned long capa_initialized; 341 atomic_t last_ttvn; 342 unsigned char *tt_buff; 343 s16 tt_buff_len; 344 spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ 345 /* prevents from changing the table while reading it */ 346 spinlock_t tt_lock; 347 DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); 348 u32 last_bcast_seqno; 349 struct hlist_head neigh_list; 350 /* neigh_list_lock protects: neigh_list, ifinfo_list, 351 * last_bonding_candidate and router 352 */ 353 spinlock_t neigh_list_lock; 354 struct hlist_node hash_entry; 355 struct batadv_priv *bat_priv; 356 /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ 357 spinlock_t bcast_seqno_lock; 358 struct kref refcount; 359 struct rcu_head rcu; 360 #ifdef CONFIG_BATMAN_ADV_NC 361 struct list_head in_coding_list; 362 struct list_head out_coding_list; 363 spinlock_t in_coding_list_lock; /* Protects in_coding_list */ 364 spinlock_t out_coding_list_lock; /* Protects out_coding_list */ 365 #endif 366 struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; 367 struct hlist_head vlan_list; 368 spinlock_t vlan_list_lock; /* protects vlan_list */ 369 struct batadv_orig_bat_iv bat_iv; 370 }; 371 372 /** 373 * enum batadv_orig_capabilities - orig node capabilities 374 * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled 375 * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled 376 * @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability 377 * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability 378 * (= orig node announces a tvlv of type BATADV_TVLV_MCAST) 379 */ 380 enum batadv_orig_capabilities { 381 BATADV_ORIG_CAPA_HAS_DAT, 382 BATADV_ORIG_CAPA_HAS_NC, 383 BATADV_ORIG_CAPA_HAS_TT, 384 BATADV_ORIG_CAPA_HAS_MCAST, 385 }; 386 387 /** 388 * struct batadv_gw_node - structure for orig nodes announcing gw capabilities 389 * @list: list node for batadv_priv_gw::list 390 * @orig_node: pointer to corresponding orig node 391 * @bandwidth_down: advertised uplink download bandwidth 392 * @bandwidth_up: advertised uplink upload bandwidth 393 * @refcount: number of contexts the object is used 394 * @rcu: struct used for freeing in an RCU-safe manner 395 */ 396 struct batadv_gw_node { 397 struct hlist_node list; 398 struct batadv_orig_node *orig_node; 399 u32 bandwidth_down; 400 u32 bandwidth_up; 401 struct kref refcount; 402 struct rcu_head rcu; 403 }; 404 405 DECLARE_EWMA(throughput, 10, 8) 406 407 /** 408 * struct batadv_hardif_neigh_node_bat_v - B.A.T.M.A.N. V private neighbor 409 * information 410 * @throughput: ewma link throughput towards this neighbor 411 * @elp_interval: time interval between two ELP transmissions 412 * @elp_latest_seqno: latest and best known ELP sequence number 413 * @last_unicast_tx: when the last unicast packet has been sent to this neighbor 414 * @metric_work: work queue callback item for metric update 415 */ 416 struct batadv_hardif_neigh_node_bat_v { 417 struct ewma_throughput throughput; 418 u32 elp_interval; 419 u32 elp_latest_seqno; 420 unsigned long last_unicast_tx; 421 struct work_struct metric_work; 422 }; 423 424 /** 425 * struct batadv_hardif_neigh_node - unique neighbor per hard-interface 426 * @list: list node for batadv_hard_iface::neigh_list 427 * @addr: the MAC address of the neighboring interface 428 * @orig: the address of the originator this neighbor node belongs to 429 * @if_incoming: pointer to incoming hard-interface 430 * @last_seen: when last packet via this neighbor was received 431 * @bat_v: B.A.T.M.A.N. V private data 432 * @refcount: number of contexts the object is used 433 * @rcu: struct used for freeing in a RCU-safe manner 434 */ 435 struct batadv_hardif_neigh_node { 436 struct hlist_node list; 437 u8 addr[ETH_ALEN]; 438 u8 orig[ETH_ALEN]; 439 struct batadv_hard_iface *if_incoming; 440 unsigned long last_seen; 441 #ifdef CONFIG_BATMAN_ADV_BATMAN_V 442 struct batadv_hardif_neigh_node_bat_v bat_v; 443 #endif 444 struct kref refcount; 445 struct rcu_head rcu; 446 }; 447 448 /** 449 * struct batadv_neigh_node - structure for single hops neighbors 450 * @list: list node for batadv_orig_node::neigh_list 451 * @orig_node: pointer to corresponding orig_node 452 * @addr: the MAC address of the neighboring interface 453 * @ifinfo_list: list for routing metrics per outgoing interface 454 * @ifinfo_lock: lock protecting private ifinfo members and list 455 * @if_incoming: pointer to incoming hard-interface 456 * @last_seen: when last packet via this neighbor was received 457 * @hardif_neigh: hardif_neigh of this neighbor 458 * @refcount: number of contexts the object is used 459 * @rcu: struct used for freeing in an RCU-safe manner 460 */ 461 struct batadv_neigh_node { 462 struct hlist_node list; 463 struct batadv_orig_node *orig_node; 464 u8 addr[ETH_ALEN]; 465 struct hlist_head ifinfo_list; 466 spinlock_t ifinfo_lock; /* protects ifinfo_list and its members */ 467 struct batadv_hard_iface *if_incoming; 468 unsigned long last_seen; 469 struct batadv_hardif_neigh_node *hardif_neigh; 470 struct kref refcount; 471 struct rcu_head rcu; 472 }; 473 474 /** 475 * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing 476 * interface for B.A.T.M.A.N. IV 477 * @tq_recv: ring buffer of received TQ values from this neigh node 478 * @tq_index: ring buffer index 479 * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) 480 * @real_bits: bitfield containing the number of OGMs received from this neigh 481 * node (relative to orig_node->last_real_seqno) 482 * @real_packet_count: counted result of real_bits 483 */ 484 struct batadv_neigh_ifinfo_bat_iv { 485 u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; 486 u8 tq_index; 487 u8 tq_avg; 488 DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); 489 u8 real_packet_count; 490 }; 491 492 /** 493 * struct batadv_neigh_ifinfo_bat_v - neighbor information per outgoing 494 * interface for B.A.T.M.A.N. V 495 * @throughput: last throughput metric received from originator via this neigh 496 * @last_seqno: last sequence number known for this neighbor 497 */ 498 struct batadv_neigh_ifinfo_bat_v { 499 u32 throughput; 500 u32 last_seqno; 501 }; 502 503 /** 504 * struct batadv_neigh_ifinfo - neighbor information per outgoing interface 505 * @list: list node for batadv_neigh_node::ifinfo_list 506 * @if_outgoing: pointer to outgoing hard-interface 507 * @bat_iv: B.A.T.M.A.N. IV private structure 508 * @bat_v: B.A.T.M.A.N. V private data 509 * @last_ttl: last received ttl from this neigh node 510 * @refcount: number of contexts the object is used 511 * @rcu: struct used for freeing in a RCU-safe manner 512 */ 513 struct batadv_neigh_ifinfo { 514 struct hlist_node list; 515 struct batadv_hard_iface *if_outgoing; 516 struct batadv_neigh_ifinfo_bat_iv bat_iv; 517 #ifdef CONFIG_BATMAN_ADV_BATMAN_V 518 struct batadv_neigh_ifinfo_bat_v bat_v; 519 #endif 520 u8 last_ttl; 521 struct kref refcount; 522 struct rcu_head rcu; 523 }; 524 525 #ifdef CONFIG_BATMAN_ADV_BLA 526 527 /** 528 * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression 529 * @orig: mac address of orig node orginating the broadcast 530 * @crc: crc32 checksum of broadcast payload 531 * @entrytime: time when the broadcast packet was received 532 */ 533 struct batadv_bcast_duplist_entry { 534 u8 orig[ETH_ALEN]; 535 __be32 crc; 536 unsigned long entrytime; 537 }; 538 #endif 539 540 /** 541 * enum batadv_counters - indices for traffic counters 542 * @BATADV_CNT_TX: transmitted payload traffic packet counter 543 * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter 544 * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter 545 * @BATADV_CNT_RX: received payload traffic packet counter 546 * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter 547 * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter 548 * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter 549 * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter 550 * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter 551 * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter 552 * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter 553 * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter 554 * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter 555 * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter 556 * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter 557 * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter 558 * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter 559 * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter 560 * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter 561 * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter 562 * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter 563 * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter 564 * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter 565 * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter 566 * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter 567 * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter 568 * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter 569 * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet 570 * counter 571 * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter 572 * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter 573 * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter 574 * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter 575 * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding 576 * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter 577 * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter 578 * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet 579 * counter 580 * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc 581 * mode. 582 * @BATADV_CNT_NUM: number of traffic counters 583 */ 584 enum batadv_counters { 585 BATADV_CNT_TX, 586 BATADV_CNT_TX_BYTES, 587 BATADV_CNT_TX_DROPPED, 588 BATADV_CNT_RX, 589 BATADV_CNT_RX_BYTES, 590 BATADV_CNT_FORWARD, 591 BATADV_CNT_FORWARD_BYTES, 592 BATADV_CNT_MGMT_TX, 593 BATADV_CNT_MGMT_TX_BYTES, 594 BATADV_CNT_MGMT_RX, 595 BATADV_CNT_MGMT_RX_BYTES, 596 BATADV_CNT_FRAG_TX, 597 BATADV_CNT_FRAG_TX_BYTES, 598 BATADV_CNT_FRAG_RX, 599 BATADV_CNT_FRAG_RX_BYTES, 600 BATADV_CNT_FRAG_FWD, 601 BATADV_CNT_FRAG_FWD_BYTES, 602 BATADV_CNT_TT_REQUEST_TX, 603 BATADV_CNT_TT_REQUEST_RX, 604 BATADV_CNT_TT_RESPONSE_TX, 605 BATADV_CNT_TT_RESPONSE_RX, 606 BATADV_CNT_TT_ROAM_ADV_TX, 607 BATADV_CNT_TT_ROAM_ADV_RX, 608 #ifdef CONFIG_BATMAN_ADV_DAT 609 BATADV_CNT_DAT_GET_TX, 610 BATADV_CNT_DAT_GET_RX, 611 BATADV_CNT_DAT_PUT_TX, 612 BATADV_CNT_DAT_PUT_RX, 613 BATADV_CNT_DAT_CACHED_REPLY_TX, 614 #endif 615 #ifdef CONFIG_BATMAN_ADV_NC 616 BATADV_CNT_NC_CODE, 617 BATADV_CNT_NC_CODE_BYTES, 618 BATADV_CNT_NC_RECODE, 619 BATADV_CNT_NC_RECODE_BYTES, 620 BATADV_CNT_NC_BUFFER, 621 BATADV_CNT_NC_DECODE, 622 BATADV_CNT_NC_DECODE_BYTES, 623 BATADV_CNT_NC_DECODE_FAILED, 624 BATADV_CNT_NC_SNIFFED, 625 #endif 626 BATADV_CNT_NUM, 627 }; 628 629 /** 630 * struct batadv_priv_tt - per mesh interface translation table data 631 * @vn: translation table version number 632 * @ogm_append_cnt: counter of number of OGMs containing the local tt diff 633 * @local_changes: changes registered in an originator interval 634 * @changes_list: tracks tt local changes within an originator interval 635 * @local_hash: local translation table hash table 636 * @global_hash: global translation table hash table 637 * @req_list: list of pending & unanswered tt_requests 638 * @roam_list: list of the last roaming events of each client limiting the 639 * number of roaming events to avoid route flapping 640 * @changes_list_lock: lock protecting changes_list 641 * @req_list_lock: lock protecting req_list 642 * @roam_list_lock: lock protecting roam_list 643 * @last_changeset: last tt changeset this host has generated 644 * @last_changeset_len: length of last tt changeset this host has generated 645 * @last_changeset_lock: lock protecting last_changeset & last_changeset_len 646 * @commit_lock: prevents from executing a local TT commit while reading the 647 * local table. The local TT commit is made up by two operations (data 648 * structure update and metdata -CRC/TTVN- recalculation) and they have to be 649 * executed atomically in order to avoid another thread to read the 650 * table/metadata between those. 651 * @work: work queue callback item for translation table purging 652 */ 653 struct batadv_priv_tt { 654 atomic_t vn; 655 atomic_t ogm_append_cnt; 656 atomic_t local_changes; 657 struct list_head changes_list; 658 struct batadv_hashtable *local_hash; 659 struct batadv_hashtable *global_hash; 660 struct hlist_head req_list; 661 struct list_head roam_list; 662 spinlock_t changes_list_lock; /* protects changes */ 663 spinlock_t req_list_lock; /* protects req_list */ 664 spinlock_t roam_list_lock; /* protects roam_list */ 665 unsigned char *last_changeset; 666 s16 last_changeset_len; 667 /* protects last_changeset & last_changeset_len */ 668 spinlock_t last_changeset_lock; 669 /* prevents from executing a commit while reading the table */ 670 spinlock_t commit_lock; 671 struct delayed_work work; 672 }; 673 674 #ifdef CONFIG_BATMAN_ADV_BLA 675 676 /** 677 * struct batadv_priv_bla - per mesh interface bridge loope avoidance data 678 * @num_requests: number of bla requests in flight 679 * @claim_hash: hash table containing mesh nodes this host has claimed 680 * @backbone_hash: hash table containing all detected backbone gateways 681 * @loopdetect_addr: MAC address used for own loopdetection frames 682 * @loopdetect_lasttime: time when the loopdetection frames were sent 683 * @loopdetect_next: how many periods to wait for the next loopdetect process 684 * @bcast_duplist: recently received broadcast packets array (for broadcast 685 * duplicate suppression) 686 * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist 687 * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr 688 * @claim_dest: local claim data (e.g. claim group) 689 * @work: work queue callback item for cleanups & bla announcements 690 */ 691 struct batadv_priv_bla { 692 atomic_t num_requests; 693 struct batadv_hashtable *claim_hash; 694 struct batadv_hashtable *backbone_hash; 695 u8 loopdetect_addr[ETH_ALEN]; 696 unsigned long loopdetect_lasttime; 697 atomic_t loopdetect_next; 698 struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; 699 int bcast_duplist_curr; 700 /* protects bcast_duplist & bcast_duplist_curr */ 701 spinlock_t bcast_duplist_lock; 702 struct batadv_bla_claim_dst claim_dest; 703 struct delayed_work work; 704 }; 705 #endif 706 707 #ifdef CONFIG_BATMAN_ADV_DEBUG 708 709 /** 710 * struct batadv_priv_debug_log - debug logging data 711 * @log_buff: buffer holding the logs (ring bufer) 712 * @log_start: index of next character to read 713 * @log_end: index of next character to write 714 * @lock: lock protecting log_buff, log_start & log_end 715 * @queue_wait: log reader's wait queue 716 */ 717 struct batadv_priv_debug_log { 718 char log_buff[BATADV_LOG_BUF_LEN]; 719 unsigned long log_start; 720 unsigned long log_end; 721 spinlock_t lock; /* protects log_buff, log_start and log_end */ 722 wait_queue_head_t queue_wait; 723 }; 724 #endif 725 726 /** 727 * struct batadv_priv_gw - per mesh interface gateway data 728 * @gateway_list: list of available gateway nodes 729 * @list_lock: lock protecting gateway_list & curr_gw 730 * @curr_gw: pointer to currently selected gateway node 731 * @mode: gateway operation: off, client or server (see batadv_gw_modes) 732 * @sel_class: gateway selection class (applies if gw_mode client) 733 * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) 734 * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) 735 * @reselect: bool indicating a gateway re-selection is in progress 736 */ 737 struct batadv_priv_gw { 738 struct hlist_head gateway_list; 739 spinlock_t list_lock; /* protects gateway_list & curr_gw */ 740 struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ 741 atomic_t mode; 742 atomic_t sel_class; 743 atomic_t bandwidth_down; 744 atomic_t bandwidth_up; 745 atomic_t reselect; 746 }; 747 748 /** 749 * struct batadv_priv_tvlv - per mesh interface tvlv data 750 * @container_list: list of registered tvlv containers to be sent with each OGM 751 * @handler_list: list of the various tvlv content handlers 752 * @container_list_lock: protects tvlv container list access 753 * @handler_list_lock: protects handler list access 754 */ 755 struct batadv_priv_tvlv { 756 struct hlist_head container_list; 757 struct hlist_head handler_list; 758 spinlock_t container_list_lock; /* protects container_list */ 759 spinlock_t handler_list_lock; /* protects handler_list */ 760 }; 761 762 #ifdef CONFIG_BATMAN_ADV_DAT 763 764 /** 765 * struct batadv_priv_dat - per mesh interface DAT private data 766 * @addr: node DAT address 767 * @hash: hashtable representing the local ARP cache 768 * @work: work queue callback item for cache purging 769 */ 770 struct batadv_priv_dat { 771 batadv_dat_addr_t addr; 772 struct batadv_hashtable *hash; 773 struct delayed_work work; 774 }; 775 #endif 776 777 #ifdef CONFIG_BATMAN_ADV_MCAST 778 /** 779 * struct batadv_mcast_querier_state - IGMP/MLD querier state when bridged 780 * @exists: whether a querier exists in the mesh 781 * @shadowing: if a querier exists, whether it is potentially shadowing 782 * multicast listeners (i.e. querier is behind our own bridge segment) 783 */ 784 struct batadv_mcast_querier_state { 785 bool exists; 786 bool shadowing; 787 }; 788 789 /** 790 * struct batadv_priv_mcast - per mesh interface mcast data 791 * @mla_list: list of multicast addresses we are currently announcing via TT 792 * @want_all_unsnoopables_list: a list of orig_nodes wanting all unsnoopable 793 * multicast traffic 794 * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast traffic 795 * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast traffic 796 * @querier_ipv4: the current state of an IGMP querier in the mesh 797 * @querier_ipv6: the current state of an MLD querier in the mesh 798 * @flags: the flags we have last sent in our mcast tvlv 799 * @enabled: whether the multicast tvlv is currently enabled 800 * @bridged: whether the soft interface has a bridge on top 801 * @num_disabled: number of nodes that have no mcast tvlv 802 * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP traffic 803 * @num_want_all_ipv4: counter for items in want_all_ipv4_list 804 * @num_want_all_ipv6: counter for items in want_all_ipv6_list 805 * @want_lists_lock: lock for protecting modifications to mcast want lists 806 * (traversals are rcu-locked) 807 * @work: work queue callback item for multicast TT and TVLV updates 808 */ 809 struct batadv_priv_mcast { 810 struct hlist_head mla_list; /* see __batadv_mcast_mla_update() */ 811 struct hlist_head want_all_unsnoopables_list; 812 struct hlist_head want_all_ipv4_list; 813 struct hlist_head want_all_ipv6_list; 814 struct batadv_mcast_querier_state querier_ipv4; 815 struct batadv_mcast_querier_state querier_ipv6; 816 u8 flags; 817 bool enabled; 818 bool bridged; 819 atomic_t num_disabled; 820 atomic_t num_want_all_unsnoopables; 821 atomic_t num_want_all_ipv4; 822 atomic_t num_want_all_ipv6; 823 /* protects want_all_{unsnoopables,ipv4,ipv6}_list */ 824 spinlock_t want_lists_lock; 825 struct delayed_work work; 826 }; 827 #endif 828 829 /** 830 * struct batadv_priv_nc - per mesh interface network coding private data 831 * @work: work queue callback item for cleanup 832 * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs 833 * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq 834 * @max_fwd_delay: maximum packet forward delay to allow coding of packets 835 * @max_buffer_time: buffer time for sniffed packets used to decoding 836 * @timestamp_fwd_flush: timestamp of last forward packet queue flush 837 * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge 838 * @coding_hash: Hash table used to buffer skbs while waiting for another 839 * incoming skb to code it with. Skbs are added to the buffer just before being 840 * forwarded in routing.c 841 * @decoding_hash: Hash table used to buffer skbs that might be needed to decode 842 * a received coded skb. The buffer is used for 1) skbs arriving on the 843 * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs 844 * forwarded by batman-adv. 845 */ 846 struct batadv_priv_nc { 847 struct delayed_work work; 848 struct dentry *debug_dir; 849 u8 min_tq; 850 u32 max_fwd_delay; 851 u32 max_buffer_time; 852 unsigned long timestamp_fwd_flush; 853 unsigned long timestamp_sniffed_purge; 854 struct batadv_hashtable *coding_hash; 855 struct batadv_hashtable *decoding_hash; 856 }; 857 858 /** 859 * struct batadv_tp_unacked - unacked packet meta-information 860 * @seqno: seqno of the unacked packet 861 * @len: length of the packet 862 * @list: list node for batadv_tp_vars::unacked_list 863 * 864 * This struct is supposed to represent a buffer unacked packet. However, since 865 * the purpose of the TP meter is to count the traffic only, there is no need to 866 * store the entire sk_buff, the starting offset and the length are enough 867 */ 868 struct batadv_tp_unacked { 869 u32 seqno; 870 u16 len; 871 struct list_head list; 872 }; 873 874 /** 875 * enum batadv_tp_meter_role - Modus in tp meter session 876 * @BATADV_TP_RECEIVER: Initialized as receiver 877 * @BATADV_TP_SENDER: Initialized as sender 878 */ 879 enum batadv_tp_meter_role { 880 BATADV_TP_RECEIVER, 881 BATADV_TP_SENDER 882 }; 883 884 /** 885 * struct batadv_tp_vars - tp meter private variables per session 886 * @list: list node for bat_priv::tp_list 887 * @timer: timer for ack (receiver) and retry (sender) 888 * @bat_priv: pointer to the mesh object 889 * @start_time: start time in jiffies 890 * @other_end: mac address of remote 891 * @role: receiver/sender modi 892 * @sending: sending binary semaphore: 1 if sending, 0 is not 893 * @reason: reason for a stopped session 894 * @finish_work: work item for the finishing procedure 895 * @test_length: test length in milliseconds 896 * @session: TP session identifier 897 * @icmp_uid: local ICMP "socket" index 898 * @dec_cwnd: decimal part of the cwnd used during linear growth 899 * @cwnd: current size of the congestion window 900 * @cwnd_lock: lock do protect @cwnd & @dec_cwnd 901 * @ss_threshold: Slow Start threshold. Once cwnd exceeds this value the 902 * connection switches to the Congestion Avoidance state 903 * @last_acked: last acked byte 904 * @last_sent: last sent byte, not yet acked 905 * @tot_sent: amount of data sent/ACKed so far 906 * @dup_acks: duplicate ACKs counter 907 * @fast_recovery: true if in Fast Recovery mode 908 * @recover: last sent seqno when entering Fast Recovery 909 * @rto: sender timeout 910 * @srtt: smoothed RTT scaled by 2^3 911 * @rttvar: RTT variation scaled by 2^2 912 * @more_bytes: waiting queue anchor when waiting for more ack/retry timeout 913 * @prerandom_offset: offset inside the prerandom buffer 914 * @prerandom_lock: spinlock protecting access to prerandom_offset 915 * @last_recv: last in-order received packet 916 * @unacked_list: list of unacked packets (meta-info only) 917 * @unacked_lock: protect unacked_list 918 * @last_recv_time: time time (jiffies) a msg was received 919 * @refcount: number of context where the object is used 920 * @rcu: struct used for freeing in an RCU-safe manner 921 */ 922 struct batadv_tp_vars { 923 struct hlist_node list; 924 struct timer_list timer; 925 struct batadv_priv *bat_priv; 926 unsigned long start_time; 927 u8 other_end[ETH_ALEN]; 928 enum batadv_tp_meter_role role; 929 atomic_t sending; 930 enum batadv_tp_meter_reason reason; 931 struct delayed_work finish_work; 932 u32 test_length; 933 u8 session[2]; 934 u8 icmp_uid; 935 936 /* sender variables */ 937 u16 dec_cwnd; 938 u32 cwnd; 939 spinlock_t cwnd_lock; /* Protects cwnd & dec_cwnd */ 940 u32 ss_threshold; 941 atomic_t last_acked; 942 u32 last_sent; 943 atomic64_t tot_sent; 944 atomic_t dup_acks; 945 bool fast_recovery; 946 u32 recover; 947 u32 rto; 948 u32 srtt; 949 u32 rttvar; 950 wait_queue_head_t more_bytes; 951 u32 prerandom_offset; 952 spinlock_t prerandom_lock; /* Protects prerandom_offset */ 953 954 /* receiver variables */ 955 u32 last_recv; 956 struct list_head unacked_list; 957 spinlock_t unacked_lock; /* Protects unacked_list */ 958 unsigned long last_recv_time; 959 struct kref refcount; 960 struct rcu_head rcu; 961 }; 962 963 /** 964 * struct batadv_softif_vlan - per VLAN attributes set 965 * @bat_priv: pointer to the mesh object 966 * @vid: VLAN identifier 967 * @kobj: kobject for sysfs vlan subdirectory 968 * @ap_isolation: AP isolation state 969 * @tt: TT private attributes (VLAN specific) 970 * @list: list node for bat_priv::softif_vlan_list 971 * @refcount: number of context where this object is currently in use 972 * @rcu: struct used for freeing in a RCU-safe manner 973 */ 974 struct batadv_softif_vlan { 975 struct batadv_priv *bat_priv; 976 unsigned short vid; 977 struct kobject *kobj; 978 atomic_t ap_isolation; /* boolean */ 979 struct batadv_vlan_tt tt; 980 struct hlist_node list; 981 struct kref refcount; 982 struct rcu_head rcu; 983 }; 984 985 /** 986 * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data 987 * @ogm_buff: buffer holding the OGM packet 988 * @ogm_buff_len: length of the OGM packet buffer 989 * @ogm_seqno: OGM sequence number - used to identify each OGM 990 * @ogm_wq: workqueue used to schedule OGM transmissions 991 */ 992 struct batadv_priv_bat_v { 993 unsigned char *ogm_buff; 994 int ogm_buff_len; 995 atomic_t ogm_seqno; 996 struct delayed_work ogm_wq; 997 }; 998 999 /** 1000 * struct batadv_priv - per mesh interface data 1001 * @mesh_state: current status of the mesh (inactive/active/deactivating) 1002 * @soft_iface: net device which holds this struct as private data 1003 * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) 1004 * @aggregated_ogms: bool indicating whether OGM aggregation is enabled 1005 * @bonding: bool indicating whether traffic bonding is enabled 1006 * @fragmentation: bool indicating whether traffic fragmentation is enabled 1007 * @packet_size_max: max packet size that can be transmitted via 1008 * multiple fragmented skbs or a single frame if fragmentation is disabled 1009 * @frag_seqno: incremental counter to identify chains of egress fragments 1010 * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is 1011 * enabled 1012 * @distributed_arp_table: bool indicating whether distributed ARP table is 1013 * enabled 1014 * @multicast_mode: Enable or disable multicast optimizations on this node's 1015 * sender/originating side 1016 * @orig_interval: OGM broadcast interval in milliseconds 1017 * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop 1018 * @log_level: configured log level (see batadv_dbg_level) 1019 * @isolation_mark: the skb->mark value used to match packets for AP isolation 1020 * @isolation_mark_mask: bitmask identifying the bits in skb->mark to be used 1021 * for the isolation mark 1022 * @bcast_seqno: last sent broadcast packet sequence number 1023 * @bcast_queue_left: number of remaining buffered broadcast packet slots 1024 * @batman_queue_left: number of remaining OGM packet slots 1025 * @num_ifaces: number of interfaces assigned to this mesh interface 1026 * @mesh_obj: kobject for sysfs mesh subdirectory 1027 * @debug_dir: dentry for debugfs batman-adv subdirectory 1028 * @forw_bat_list: list of aggregated OGMs that will be forwarded 1029 * @forw_bcast_list: list of broadcast packets that will be rebroadcasted 1030 * @tp_list: list of tp sessions 1031 * @tp_num: number of currently active tp sessions 1032 * @orig_hash: hash table containing mesh participants (orig nodes) 1033 * @forw_bat_list_lock: lock protecting forw_bat_list 1034 * @forw_bcast_list_lock: lock protecting forw_bcast_list 1035 * @tp_list_lock: spinlock protecting @tp_list 1036 * @orig_work: work queue callback item for orig node purging 1037 * @primary_if: one of the hard-interfaces assigned to this mesh interface 1038 * becomes the primary interface 1039 * @algo_ops: routing algorithm used by this mesh interface 1040 * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top 1041 * of the mesh interface represented by this object 1042 * @softif_vlan_list_lock: lock protecting softif_vlan_list 1043 * @bla: bridge loope avoidance data 1044 * @debug_log: holding debug logging relevant data 1045 * @gw: gateway data 1046 * @tt: translation table data 1047 * @tvlv: type-version-length-value data 1048 * @dat: distributed arp table data 1049 * @mcast: multicast data 1050 * @network_coding: bool indicating whether network coding is enabled 1051 * @nc: network coding data 1052 * @bat_v: B.A.T.M.A.N. V per soft-interface private data 1053 */ 1054 struct batadv_priv { 1055 atomic_t mesh_state; 1056 struct net_device *soft_iface; 1057 u64 __percpu *bat_counters; /* Per cpu counters */ 1058 atomic_t aggregated_ogms; 1059 atomic_t bonding; 1060 atomic_t fragmentation; 1061 atomic_t packet_size_max; 1062 atomic_t frag_seqno; 1063 #ifdef CONFIG_BATMAN_ADV_BLA 1064 atomic_t bridge_loop_avoidance; 1065 #endif 1066 #ifdef CONFIG_BATMAN_ADV_DAT 1067 atomic_t distributed_arp_table; 1068 #endif 1069 #ifdef CONFIG_BATMAN_ADV_MCAST 1070 atomic_t multicast_mode; 1071 #endif 1072 atomic_t orig_interval; 1073 atomic_t hop_penalty; 1074 #ifdef CONFIG_BATMAN_ADV_DEBUG 1075 atomic_t log_level; 1076 #endif 1077 u32 isolation_mark; 1078 u32 isolation_mark_mask; 1079 atomic_t bcast_seqno; 1080 atomic_t bcast_queue_left; 1081 atomic_t batman_queue_left; 1082 char num_ifaces; 1083 struct kobject *mesh_obj; 1084 struct dentry *debug_dir; 1085 struct hlist_head forw_bat_list; 1086 struct hlist_head forw_bcast_list; 1087 struct hlist_head tp_list; 1088 struct batadv_hashtable *orig_hash; 1089 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ 1090 spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ 1091 spinlock_t tp_list_lock; /* protects tp_list */ 1092 atomic_t tp_num; 1093 struct delayed_work orig_work; 1094 struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ 1095 struct batadv_algo_ops *algo_ops; 1096 struct hlist_head softif_vlan_list; 1097 spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */ 1098 #ifdef CONFIG_BATMAN_ADV_BLA 1099 struct batadv_priv_bla bla; 1100 #endif 1101 #ifdef CONFIG_BATMAN_ADV_DEBUG 1102 struct batadv_priv_debug_log *debug_log; 1103 #endif 1104 struct batadv_priv_gw gw; 1105 struct batadv_priv_tt tt; 1106 struct batadv_priv_tvlv tvlv; 1107 #ifdef CONFIG_BATMAN_ADV_DAT 1108 struct batadv_priv_dat dat; 1109 #endif 1110 #ifdef CONFIG_BATMAN_ADV_MCAST 1111 struct batadv_priv_mcast mcast; 1112 #endif 1113 #ifdef CONFIG_BATMAN_ADV_NC 1114 atomic_t network_coding; 1115 struct batadv_priv_nc nc; 1116 #endif /* CONFIG_BATMAN_ADV_NC */ 1117 #ifdef CONFIG_BATMAN_ADV_BATMAN_V 1118 struct batadv_priv_bat_v bat_v; 1119 #endif 1120 }; 1121 1122 /** 1123 * struct batadv_socket_client - layer2 icmp socket client data 1124 * @queue_list: packet queue for packets destined for this socket client 1125 * @queue_len: number of packets in the packet queue (queue_list) 1126 * @index: socket client's index in the batadv_socket_client_hash 1127 * @lock: lock protecting queue_list, queue_len & index 1128 * @queue_wait: socket client's wait queue 1129 * @bat_priv: pointer to soft_iface this client belongs to 1130 */ 1131 struct batadv_socket_client { 1132 struct list_head queue_list; 1133 unsigned int queue_len; 1134 unsigned char index; 1135 spinlock_t lock; /* protects queue_list, queue_len & index */ 1136 wait_queue_head_t queue_wait; 1137 struct batadv_priv *bat_priv; 1138 }; 1139 1140 /** 1141 * struct batadv_socket_packet - layer2 icmp packet for socket client 1142 * @list: list node for batadv_socket_client::queue_list 1143 * @icmp_len: size of the layer2 icmp packet 1144 * @icmp_packet: layer2 icmp packet 1145 */ 1146 struct batadv_socket_packet { 1147 struct list_head list; 1148 size_t icmp_len; 1149 u8 icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; 1150 }; 1151 1152 #ifdef CONFIG_BATMAN_ADV_BLA 1153 1154 /** 1155 * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN 1156 * @orig: originator address of backbone node (mac address of primary iface) 1157 * @vid: vlan id this gateway was detected on 1158 * @hash_entry: hlist node for batadv_priv_bla::backbone_hash 1159 * @bat_priv: pointer to soft_iface this backbone gateway belongs to 1160 * @lasttime: last time we heard of this backbone gw 1161 * @wait_periods: grace time for bridge forward delays and bla group forming at 1162 * bootup phase - no bcast traffic is formwared until it has elapsed 1163 * @request_sent: if this bool is set to true we are out of sync with this 1164 * backbone gateway - no bcast traffic is formwared until the situation was 1165 * resolved 1166 * @crc: crc16 checksum over all claims 1167 * @crc_lock: lock protecting crc 1168 * @report_work: work struct for reporting detected loops 1169 * @refcount: number of contexts the object is used 1170 * @rcu: struct used for freeing in an RCU-safe manner 1171 */ 1172 struct batadv_bla_backbone_gw { 1173 u8 orig[ETH_ALEN]; 1174 unsigned short vid; 1175 struct hlist_node hash_entry; 1176 struct batadv_priv *bat_priv; 1177 unsigned long lasttime; 1178 atomic_t wait_periods; 1179 atomic_t request_sent; 1180 u16 crc; 1181 spinlock_t crc_lock; /* protects crc */ 1182 struct work_struct report_work; 1183 struct kref refcount; 1184 struct rcu_head rcu; 1185 }; 1186 1187 /** 1188 * struct batadv_bla_claim - claimed non-mesh client structure 1189 * @addr: mac address of claimed non-mesh client 1190 * @vid: vlan id this client was detected on 1191 * @backbone_gw: pointer to backbone gw claiming this client 1192 * @backbone_lock: lock protecting backbone_gw pointer 1193 * @lasttime: last time we heard of claim (locals only) 1194 * @hash_entry: hlist node for batadv_priv_bla::claim_hash 1195 * @refcount: number of contexts the object is used 1196 * @rcu: struct used for freeing in an RCU-safe manner 1197 */ 1198 struct batadv_bla_claim { 1199 u8 addr[ETH_ALEN]; 1200 unsigned short vid; 1201 struct batadv_bla_backbone_gw *backbone_gw; 1202 spinlock_t backbone_lock; /* protects backbone_gw */ 1203 unsigned long lasttime; 1204 struct hlist_node hash_entry; 1205 struct rcu_head rcu; 1206 struct kref refcount; 1207 }; 1208 #endif 1209 1210 /** 1211 * struct batadv_tt_common_entry - tt local & tt global common data 1212 * @addr: mac address of non-mesh client 1213 * @vid: VLAN identifier 1214 * @hash_entry: hlist node for batadv_priv_tt::local_hash or for 1215 * batadv_priv_tt::global_hash 1216 * @flags: various state handling flags (see batadv_tt_client_flags) 1217 * @added_at: timestamp used for purging stale tt common entries 1218 * @refcount: number of contexts the object is used 1219 * @rcu: struct used for freeing in an RCU-safe manner 1220 */ 1221 struct batadv_tt_common_entry { 1222 u8 addr[ETH_ALEN]; 1223 unsigned short vid; 1224 struct hlist_node hash_entry; 1225 u16 flags; 1226 unsigned long added_at; 1227 struct kref refcount; 1228 struct rcu_head rcu; 1229 }; 1230 1231 /** 1232 * struct batadv_tt_local_entry - translation table local entry data 1233 * @common: general translation table data 1234 * @last_seen: timestamp used for purging stale tt local entries 1235 * @vlan: soft-interface vlan of the entry 1236 */ 1237 struct batadv_tt_local_entry { 1238 struct batadv_tt_common_entry common; 1239 unsigned long last_seen; 1240 struct batadv_softif_vlan *vlan; 1241 }; 1242 1243 /** 1244 * struct batadv_tt_global_entry - translation table global entry data 1245 * @common: general translation table data 1246 * @orig_list: list of orig nodes announcing this non-mesh client 1247 * @orig_list_count: number of items in the orig_list 1248 * @list_lock: lock protecting orig_list 1249 * @roam_at: time at which TT_GLOBAL_ROAM was set 1250 */ 1251 struct batadv_tt_global_entry { 1252 struct batadv_tt_common_entry common; 1253 struct hlist_head orig_list; 1254 atomic_t orig_list_count; 1255 spinlock_t list_lock; /* protects orig_list */ 1256 unsigned long roam_at; 1257 }; 1258 1259 /** 1260 * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client 1261 * @orig_node: pointer to orig node announcing this non-mesh client 1262 * @ttvn: translation table version number which added the non-mesh client 1263 * @flags: per orig entry TT sync flags 1264 * @list: list node for batadv_tt_global_entry::orig_list 1265 * @refcount: number of contexts the object is used 1266 * @rcu: struct used for freeing in an RCU-safe manner 1267 */ 1268 struct batadv_tt_orig_list_entry { 1269 struct batadv_orig_node *orig_node; 1270 u8 ttvn; 1271 u8 flags; 1272 struct hlist_node list; 1273 struct kref refcount; 1274 struct rcu_head rcu; 1275 }; 1276 1277 /** 1278 * struct batadv_tt_change_node - structure for tt changes occurred 1279 * @list: list node for batadv_priv_tt::changes_list 1280 * @change: holds the actual translation table diff data 1281 */ 1282 struct batadv_tt_change_node { 1283 struct list_head list; 1284 struct batadv_tvlv_tt_change change; 1285 }; 1286 1287 /** 1288 * struct batadv_tt_req_node - data to keep track of the tt requests in flight 1289 * @addr: mac address address of the originator this request was sent to 1290 * @issued_at: timestamp used for purging stale tt requests 1291 * @refcount: number of contexts the object is used by 1292 * @list: list node for batadv_priv_tt::req_list 1293 */ 1294 struct batadv_tt_req_node { 1295 u8 addr[ETH_ALEN]; 1296 unsigned long issued_at; 1297 struct kref refcount; 1298 struct hlist_node list; 1299 }; 1300 1301 /** 1302 * struct batadv_tt_roam_node - roaming client data 1303 * @addr: mac address of the client in the roaming phase 1304 * @counter: number of allowed roaming events per client within a single 1305 * OGM interval (changes are committed with each OGM) 1306 * @first_time: timestamp used for purging stale roaming node entries 1307 * @list: list node for batadv_priv_tt::roam_list 1308 */ 1309 struct batadv_tt_roam_node { 1310 u8 addr[ETH_ALEN]; 1311 atomic_t counter; 1312 unsigned long first_time; 1313 struct list_head list; 1314 }; 1315 1316 /** 1317 * struct batadv_nc_node - network coding node 1318 * @list: next and prev pointer for the list handling 1319 * @addr: the node's mac address 1320 * @refcount: number of contexts the object is used by 1321 * @rcu: struct used for freeing in an RCU-safe manner 1322 * @orig_node: pointer to corresponding orig node struct 1323 * @last_seen: timestamp of last ogm received from this node 1324 */ 1325 struct batadv_nc_node { 1326 struct list_head list; 1327 u8 addr[ETH_ALEN]; 1328 struct kref refcount; 1329 struct rcu_head rcu; 1330 struct batadv_orig_node *orig_node; 1331 unsigned long last_seen; 1332 }; 1333 1334 /** 1335 * struct batadv_nc_path - network coding path 1336 * @hash_entry: next and prev pointer for the list handling 1337 * @rcu: struct used for freeing in an RCU-safe manner 1338 * @refcount: number of contexts the object is used by 1339 * @packet_list: list of buffered packets for this path 1340 * @packet_list_lock: access lock for packet list 1341 * @next_hop: next hop (destination) of path 1342 * @prev_hop: previous hop (source) of path 1343 * @last_valid: timestamp for last validation of path 1344 */ 1345 struct batadv_nc_path { 1346 struct hlist_node hash_entry; 1347 struct rcu_head rcu; 1348 struct kref refcount; 1349 struct list_head packet_list; 1350 spinlock_t packet_list_lock; /* Protects packet_list */ 1351 u8 next_hop[ETH_ALEN]; 1352 u8 prev_hop[ETH_ALEN]; 1353 unsigned long last_valid; 1354 }; 1355 1356 /** 1357 * struct batadv_nc_packet - network coding packet used when coding and 1358 * decoding packets 1359 * @list: next and prev pointer for the list handling 1360 * @packet_id: crc32 checksum of skb data 1361 * @timestamp: field containing the info when the packet was added to path 1362 * @neigh_node: pointer to original next hop neighbor of skb 1363 * @skb: skb which can be encoded or used for decoding 1364 * @nc_path: pointer to path this nc packet is attached to 1365 */ 1366 struct batadv_nc_packet { 1367 struct list_head list; 1368 __be32 packet_id; 1369 unsigned long timestamp; 1370 struct batadv_neigh_node *neigh_node; 1371 struct sk_buff *skb; 1372 struct batadv_nc_path *nc_path; 1373 }; 1374 1375 /** 1376 * struct batadv_skb_cb - control buffer structure used to store private data 1377 * relevant to batman-adv in the skb->cb buffer in skbs. 1378 * @decoded: Marks a skb as decoded, which is checked when searching for coding 1379 * opportunities in network-coding.c 1380 * @num_bcasts: Counter for broadcast packet retransmissions 1381 */ 1382 struct batadv_skb_cb { 1383 bool decoded; 1384 unsigned int num_bcasts; 1385 }; 1386 1387 /** 1388 * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded 1389 * @list: list node for batadv_priv::forw_{bat,bcast}_list 1390 * @cleanup_list: list node for purging functions 1391 * @send_time: execution time for delayed_work (packet sending) 1392 * @own: bool for locally generated packets (local OGMs are re-scheduled after 1393 * sending) 1394 * @skb: bcast packet's skb buffer 1395 * @packet_len: size of aggregated OGM packet inside the skb buffer 1396 * @direct_link_flags: direct link flags for aggregated OGM packets 1397 * @num_packets: counter for aggregated OGMv1 packets 1398 * @delayed_work: work queue callback item for packet sending 1399 * @if_incoming: pointer to incoming hard-iface or primary iface if 1400 * locally generated packet 1401 * @if_outgoing: packet where the packet should be sent to, or NULL if 1402 * unspecified 1403 * @queue_left: The queue (counter) this packet was applied to 1404 */ 1405 struct batadv_forw_packet { 1406 struct hlist_node list; 1407 struct hlist_node cleanup_list; 1408 unsigned long send_time; 1409 u8 own; 1410 struct sk_buff *skb; 1411 u16 packet_len; 1412 u32 direct_link_flags; 1413 u8 num_packets; 1414 struct delayed_work delayed_work; 1415 struct batadv_hard_iface *if_incoming; 1416 struct batadv_hard_iface *if_outgoing; 1417 atomic_t *queue_left; 1418 }; 1419 1420 /** 1421 * struct batadv_algo_iface_ops - mesh algorithm callbacks (interface specific) 1422 * @activate: start routing mechanisms when hard-interface is brought up 1423 * (optional) 1424 * @enable: init routing info when hard-interface is enabled 1425 * @disable: de-init routing info when hard-interface is disabled 1426 * @update_mac: (re-)init mac addresses of the protocol information 1427 * belonging to this hard-interface 1428 * @primary_set: called when primary interface is selected / changed 1429 */ 1430 struct batadv_algo_iface_ops { 1431 void (*activate)(struct batadv_hard_iface *hard_iface); 1432 int (*enable)(struct batadv_hard_iface *hard_iface); 1433 void (*disable)(struct batadv_hard_iface *hard_iface); 1434 void (*update_mac)(struct batadv_hard_iface *hard_iface); 1435 void (*primary_set)(struct batadv_hard_iface *hard_iface); 1436 }; 1437 1438 /** 1439 * struct batadv_algo_neigh_ops - mesh algorithm callbacks (neighbour specific) 1440 * @hardif_init: called on creation of single hop entry 1441 * (optional) 1442 * @cmp: compare the metrics of two neighbors for their respective outgoing 1443 * interfaces 1444 * @is_similar_or_better: check if neigh1 is equally similar or better than 1445 * neigh2 for their respective outgoing interface from the metric prospective 1446 * @print: print the single hop neighbor list (optional) 1447 * @dump: dump neighbors to a netlink socket (optional) 1448 */ 1449 struct batadv_algo_neigh_ops { 1450 void (*hardif_init)(struct batadv_hardif_neigh_node *neigh); 1451 int (*cmp)(struct batadv_neigh_node *neigh1, 1452 struct batadv_hard_iface *if_outgoing1, 1453 struct batadv_neigh_node *neigh2, 1454 struct batadv_hard_iface *if_outgoing2); 1455 bool (*is_similar_or_better)(struct batadv_neigh_node *neigh1, 1456 struct batadv_hard_iface *if_outgoing1, 1457 struct batadv_neigh_node *neigh2, 1458 struct batadv_hard_iface *if_outgoing2); 1459 #ifdef CONFIG_BATMAN_ADV_DEBUGFS 1460 void (*print)(struct batadv_priv *priv, struct seq_file *seq); 1461 #endif 1462 void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, 1463 struct batadv_priv *priv, 1464 struct batadv_hard_iface *hard_iface); 1465 }; 1466 1467 /** 1468 * struct batadv_algo_orig_ops - mesh algorithm callbacks (originator specific) 1469 * @free: free the resources allocated by the routing algorithm for an orig_node 1470 * object (optional) 1471 * @add_if: ask the routing algorithm to apply the needed changes to the 1472 * orig_node due to a new hard-interface being added into the mesh (optional) 1473 * @del_if: ask the routing algorithm to apply the needed changes to the 1474 * orig_node due to an hard-interface being removed from the mesh (optional) 1475 * @print: print the originator table (optional) 1476 * @dump: dump originators to a netlink socket (optional) 1477 */ 1478 struct batadv_algo_orig_ops { 1479 void (*free)(struct batadv_orig_node *orig_node); 1480 int (*add_if)(struct batadv_orig_node *orig_node, int max_if_num); 1481 int (*del_if)(struct batadv_orig_node *orig_node, int max_if_num, 1482 int del_if_num); 1483 #ifdef CONFIG_BATMAN_ADV_DEBUGFS 1484 void (*print)(struct batadv_priv *priv, struct seq_file *seq, 1485 struct batadv_hard_iface *hard_iface); 1486 #endif 1487 void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, 1488 struct batadv_priv *priv, 1489 struct batadv_hard_iface *hard_iface); 1490 }; 1491 1492 /** 1493 * struct batadv_algo_gw_ops - mesh algorithm callbacks (GW specific) 1494 * @init_sel_class: initialize GW selection class (optional) 1495 * @store_sel_class: parse and stores a new GW selection class (optional) 1496 * @show_sel_class: prints the current GW selection class (optional) 1497 * @get_best_gw_node: select the best GW from the list of available nodes 1498 * (optional) 1499 * @is_eligible: check if a newly discovered GW is a potential candidate for 1500 * the election as best GW (optional) 1501 * @print: print the gateway table (optional) 1502 * @dump: dump gateways to a netlink socket (optional) 1503 */ 1504 struct batadv_algo_gw_ops { 1505 void (*init_sel_class)(struct batadv_priv *bat_priv); 1506 ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff, 1507 size_t count); 1508 ssize_t (*show_sel_class)(struct batadv_priv *bat_priv, char *buff); 1509 struct batadv_gw_node *(*get_best_gw_node) 1510 (struct batadv_priv *bat_priv); 1511 bool (*is_eligible)(struct batadv_priv *bat_priv, 1512 struct batadv_orig_node *curr_gw_orig, 1513 struct batadv_orig_node *orig_node); 1514 #ifdef CONFIG_BATMAN_ADV_DEBUGFS 1515 void (*print)(struct batadv_priv *bat_priv, struct seq_file *seq); 1516 #endif 1517 void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, 1518 struct batadv_priv *priv); 1519 }; 1520 1521 /** 1522 * struct batadv_algo_ops - mesh algorithm callbacks 1523 * @list: list node for the batadv_algo_list 1524 * @name: name of the algorithm 1525 * @iface: callbacks related to interface handling 1526 * @neigh: callbacks related to neighbors handling 1527 * @orig: callbacks related to originators handling 1528 * @gw: callbacks related to GW mode 1529 */ 1530 struct batadv_algo_ops { 1531 struct hlist_node list; 1532 char *name; 1533 struct batadv_algo_iface_ops iface; 1534 struct batadv_algo_neigh_ops neigh; 1535 struct batadv_algo_orig_ops orig; 1536 struct batadv_algo_gw_ops gw; 1537 }; 1538 1539 /** 1540 * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It 1541 * is used to stored ARP entries needed for the global DAT cache 1542 * @ip: the IPv4 corresponding to this DAT/ARP entry 1543 * @mac_addr: the MAC address associated to the stored IPv4 1544 * @vid: the vlan ID associated to this entry 1545 * @last_update: time in jiffies when this entry was refreshed last time 1546 * @hash_entry: hlist node for batadv_priv_dat::hash 1547 * @refcount: number of contexts the object is used 1548 * @rcu: struct used for freeing in an RCU-safe manner 1549 */ 1550 struct batadv_dat_entry { 1551 __be32 ip; 1552 u8 mac_addr[ETH_ALEN]; 1553 unsigned short vid; 1554 unsigned long last_update; 1555 struct hlist_node hash_entry; 1556 struct kref refcount; 1557 struct rcu_head rcu; 1558 }; 1559 1560 /** 1561 * struct batadv_hw_addr - a list entry for a MAC address 1562 * @list: list node for the linking of entries 1563 * @addr: the MAC address of this list entry 1564 */ 1565 struct batadv_hw_addr { 1566 struct hlist_node list; 1567 unsigned char addr[ETH_ALEN]; 1568 }; 1569 1570 /** 1571 * struct batadv_dat_candidate - candidate destination for DAT operations 1572 * @type: the type of the selected candidate. It can one of the following: 1573 * - BATADV_DAT_CANDIDATE_NOT_FOUND 1574 * - BATADV_DAT_CANDIDATE_ORIG 1575 * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the 1576 * corresponding originator node structure 1577 */ 1578 struct batadv_dat_candidate { 1579 int type; 1580 struct batadv_orig_node *orig_node; 1581 }; 1582 1583 /** 1584 * struct batadv_tvlv_container - container for tvlv appended to OGMs 1585 * @list: hlist node for batadv_priv_tvlv::container_list 1586 * @tvlv_hdr: tvlv header information needed to construct the tvlv 1587 * @refcount: number of contexts the object is used 1588 */ 1589 struct batadv_tvlv_container { 1590 struct hlist_node list; 1591 struct batadv_tvlv_hdr tvlv_hdr; 1592 struct kref refcount; 1593 }; 1594 1595 /** 1596 * struct batadv_tvlv_handler - handler for specific tvlv type and version 1597 * @list: hlist node for batadv_priv_tvlv::handler_list 1598 * @ogm_handler: handler callback which is given the tvlv payload to process on 1599 * incoming OGM packets 1600 * @unicast_handler: handler callback which is given the tvlv payload to process 1601 * on incoming unicast tvlv packets 1602 * @type: tvlv type this handler feels responsible for 1603 * @version: tvlv version this handler feels responsible for 1604 * @flags: tvlv handler flags 1605 * @refcount: number of contexts the object is used 1606 * @rcu: struct used for freeing in an RCU-safe manner 1607 */ 1608 struct batadv_tvlv_handler { 1609 struct hlist_node list; 1610 void (*ogm_handler)(struct batadv_priv *bat_priv, 1611 struct batadv_orig_node *orig, 1612 u8 flags, void *tvlv_value, u16 tvlv_value_len); 1613 int (*unicast_handler)(struct batadv_priv *bat_priv, 1614 u8 *src, u8 *dst, 1615 void *tvlv_value, u16 tvlv_value_len); 1616 u8 type; 1617 u8 version; 1618 u8 flags; 1619 struct kref refcount; 1620 struct rcu_head rcu; 1621 }; 1622 1623 /** 1624 * enum batadv_tvlv_handler_flags - tvlv handler flags definitions 1625 * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call 1626 * this handler even if its type was not found (with no data) 1627 * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks 1628 * a handler as being called, so it won't be called if the 1629 * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set 1630 */ 1631 enum batadv_tvlv_handler_flags { 1632 BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), 1633 BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), 1634 }; 1635 1636 /** 1637 * struct batadv_store_mesh_work - Work queue item to detach add/del interface 1638 * from sysfs locks 1639 * @net_dev: netdevice to add/remove to/from batman-adv soft-interface 1640 * @soft_iface_name: name of soft-interface to modify 1641 * @work: work queue item 1642 */ 1643 struct batadv_store_mesh_work { 1644 struct net_device *net_dev; 1645 char soft_iface_name[IFNAMSIZ]; 1646 struct work_struct work; 1647 }; 1648 1649 #endif /* _NET_BATMAN_ADV_TYPES_H_ */ 1650