| /* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: | |
| * | |
| * Marek Lindner, Simon Wunderlich | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of version 2 of the GNU General Public | |
| * License as published by the Free Software Foundation. | |
| * | |
| * This program is distributed in the hope that it will be useful, but | |
| * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
| */ | |
| #ifndef _NET_BATMAN_ADV_TYPES_H_ | |
| #define _NET_BATMAN_ADV_TYPES_H_ | |
| #ifndef _NET_BATMAN_ADV_MAIN_H_ | |
| #error only "main.h" can be included directly | |
| #endif | |
| #include <linux/average.h> | |
| #include <linux/bitops.h> | |
| #include <linux/compiler.h> | |
| #include <linux/if_ether.h> | |
| #include <linux/kref.h> | |
| #include <linux/netdevice.h> | |
| #include <linux/netlink.h> | |
| #include <linux/sched.h> /* for linux/wait.h */ | |
| #include <linux/spinlock.h> | |
| #include <linux/types.h> | |
| #include <linux/wait.h> | |
| #include <linux/workqueue.h> | |
| #include <uapi/linux/batman_adv.h> | |
| #include "packet.h" | |
| struct seq_file; | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| /** | |
| * batadv_dat_addr_t - it is the type used for all DHT addresses. If it is | |
| * changed, BATADV_DAT_ADDR_MAX is changed as well. | |
| * | |
| * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
| */ | |
| #define batadv_dat_addr_t u16 | |
| #endif /* CONFIG_BATMAN_ADV_DAT */ | |
| /** | |
| * enum batadv_dhcp_recipient - dhcp destination | |
| * @BATADV_DHCP_NO: packet is not a dhcp message | |
| * @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server | |
| * @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client | |
| */ | |
| enum batadv_dhcp_recipient { | |
| BATADV_DHCP_NO = 0, | |
| BATADV_DHCP_TO_SERVER, | |
| BATADV_DHCP_TO_CLIENT, | |
| }; | |
| /** | |
| * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the | |
| * wire only | |
| */ | |
| #define BATADV_TT_REMOTE_MASK 0x00FF | |
| /** | |
| * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync | |
| * among the nodes. These flags are used to compute the global/local CRC | |
| */ | |
| #define BATADV_TT_SYNC_MASK 0x00F0 | |
| /** | |
| * struct batadv_hard_iface_bat_iv - per hard-interface B.A.T.M.A.N. IV data | |
| * @ogm_buff: buffer holding the OGM packet | |
| * @ogm_buff_len: length of the OGM packet buffer | |
| * @ogm_seqno: OGM sequence number - used to identify each OGM | |
| */ | |
| struct batadv_hard_iface_bat_iv { | |
| unsigned char *ogm_buff; | |
| int ogm_buff_len; | |
| atomic_t ogm_seqno; | |
| }; | |
| /** | |
| * enum batadv_v_hard_iface_flags - interface flags useful to B.A.T.M.A.N. V | |
| * @BATADV_FULL_DUPLEX: tells if the connection over this link is full-duplex | |
| * @BATADV_WARNING_DEFAULT: tells whether we have warned the user that no | |
| * throughput data is available for this interface and that default values are | |
| * assumed. | |
| */ | |
| enum batadv_v_hard_iface_flags { | |
| BATADV_FULL_DUPLEX = BIT(0), | |
| BATADV_WARNING_DEFAULT = BIT(1), | |
| }; | |
| /** | |
| * struct batadv_hard_iface_bat_v - per hard-interface B.A.T.M.A.N. V data | |
| * @elp_interval: time interval between two ELP transmissions | |
| * @elp_seqno: current ELP sequence number | |
| * @elp_skb: base skb containing the ELP message to send | |
| * @elp_wq: workqueue used to schedule ELP transmissions | |
| * @throughput_override: throughput override to disable link auto-detection | |
| * @flags: interface specific flags | |
| */ | |
| struct batadv_hard_iface_bat_v { | |
| atomic_t elp_interval; | |
| atomic_t elp_seqno; | |
| struct sk_buff *elp_skb; | |
| struct delayed_work elp_wq; | |
| atomic_t throughput_override; | |
| u8 flags; | |
| }; | |
| /** | |
| * enum batadv_hard_iface_wifi_flags - Flags describing the wifi configuration | |
| * of a batadv_hard_iface | |
| * @BATADV_HARDIF_WIFI_WEXT_DIRECT: it is a wext wifi device | |
| * @BATADV_HARDIF_WIFI_CFG80211_DIRECT: it is a cfg80211 wifi device | |
| * @BATADV_HARDIF_WIFI_WEXT_INDIRECT: link device is a wext wifi device | |
| * @BATADV_HARDIF_WIFI_CFG80211_INDIRECT: link device is a cfg80211 wifi device | |
| */ | |
| enum batadv_hard_iface_wifi_flags { | |
| BATADV_HARDIF_WIFI_WEXT_DIRECT = BIT(0), | |
| BATADV_HARDIF_WIFI_CFG80211_DIRECT = BIT(1), | |
| BATADV_HARDIF_WIFI_WEXT_INDIRECT = BIT(2), | |
| BATADV_HARDIF_WIFI_CFG80211_INDIRECT = BIT(3), | |
| }; | |
| /** | |
| * struct batadv_hard_iface - network device known to batman-adv | |
| * @list: list node for batadv_hardif_list | |
| * @if_num: identificator of the interface | |
| * @if_status: status of the interface for batman-adv | |
| * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) | |
| * @wifi_flags: flags whether this is (directly or indirectly) a wifi interface | |
| * @net_dev: pointer to the net_device | |
| * @hardif_obj: kobject of the per interface sysfs "mesh" directory | |
| * @refcount: number of contexts the object is used | |
| * @batman_adv_ptype: packet type describing packets that should be processed by | |
| * batman-adv for this interface | |
| * @soft_iface: the batman-adv interface which uses this network interface | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| * @bat_iv: per hard-interface B.A.T.M.A.N. IV data | |
| * @bat_v: per hard-interface B.A.T.M.A.N. V data | |
| * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs | |
| * @neigh_list: list of unique single hop neighbors via this interface | |
| * @neigh_list_lock: lock protecting neigh_list | |
| */ | |
| struct batadv_hard_iface { | |
| struct list_head list; | |
| s16 if_num; | |
| char if_status; | |
| u8 num_bcasts; | |
| u32 wifi_flags; | |
| struct net_device *net_dev; | |
| struct kobject *hardif_obj; | |
| struct kref refcount; | |
| struct packet_type batman_adv_ptype; | |
| struct net_device *soft_iface; | |
| struct rcu_head rcu; | |
| struct batadv_hard_iface_bat_iv bat_iv; | |
| #ifdef CONFIG_BATMAN_ADV_BATMAN_V | |
| struct batadv_hard_iface_bat_v bat_v; | |
| #endif | |
| struct dentry *debug_dir; | |
| struct hlist_head neigh_list; | |
| /* neigh_list_lock protects: neigh_list */ | |
| spinlock_t neigh_list_lock; | |
| }; | |
| /** | |
| * struct batadv_orig_ifinfo - originator info per outgoing interface | |
| * @list: list node for orig_node::ifinfo_list | |
| * @if_outgoing: pointer to outgoing hard-interface | |
| * @router: router that should be used to reach this originator | |
| * @last_real_seqno: last and best known sequence number | |
| * @last_ttl: ttl of last received packet | |
| * @last_seqno_forwarded: seqno of the OGM which was forwarded last | |
| * @batman_seqno_reset: time when the batman seqno window was reset | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_orig_ifinfo { | |
| struct hlist_node list; | |
| struct batadv_hard_iface *if_outgoing; | |
| struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ | |
| u32 last_real_seqno; | |
| u8 last_ttl; | |
| u32 last_seqno_forwarded; | |
| unsigned long batman_seqno_reset; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_frag_table_entry - head in the fragment buffer table | |
| * @fragment_list: head of list with fragments | |
| * @lock: lock to protect the list of fragments | |
| * @timestamp: time (jiffie) of last received fragment | |
| * @seqno: sequence number of the fragments in the list | |
| * @size: accumulated size of packets in list | |
| * @total_size: expected size of the assembled packet | |
| */ | |
| struct batadv_frag_table_entry { | |
| struct hlist_head fragment_list; | |
| spinlock_t lock; /* protects fragment_list */ | |
| unsigned long timestamp; | |
| u16 seqno; | |
| u16 size; | |
| u16 total_size; | |
| }; | |
| /** | |
| * struct batadv_frag_list_entry - entry in a list of fragments | |
| * @list: list node information | |
| * @skb: fragment | |
| * @no: fragment number in the set | |
| */ | |
| struct batadv_frag_list_entry { | |
| struct hlist_node list; | |
| struct sk_buff *skb; | |
| u8 no; | |
| }; | |
| /** | |
| * struct batadv_vlan_tt - VLAN specific TT attributes | |
| * @crc: CRC32 checksum of the entries belonging to this vlan | |
| * @num_entries: number of TT entries for this VLAN | |
| */ | |
| struct batadv_vlan_tt { | |
| u32 crc; | |
| atomic_t num_entries; | |
| }; | |
| /** | |
| * struct batadv_orig_node_vlan - VLAN specific data per orig_node | |
| * @vid: the VLAN identifier | |
| * @tt: VLAN specific TT attributes | |
| * @list: list node for orig_node::vlan_list | |
| * @refcount: number of context where this object is currently in use | |
| * @rcu: struct used for freeing in a RCU-safe manner | |
| */ | |
| struct batadv_orig_node_vlan { | |
| unsigned short vid; | |
| struct batadv_vlan_tt tt; | |
| struct hlist_node list; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members | |
| * @bcast_own: set of bitfields (one per hard-interface) where each one counts | |
| * the number of our OGMs this orig_node rebroadcasted "back" to us (relative | |
| * to last_real_seqno). Every bitfield is BATADV_TQ_LOCAL_WINDOW_SIZE bits long. | |
| * @bcast_own_sum: sum of bcast_own | |
| * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, | |
| * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
| */ | |
| struct batadv_orig_bat_iv { | |
| unsigned long *bcast_own; | |
| u8 *bcast_own_sum; | |
| /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, | |
| * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
| */ | |
| spinlock_t ogm_cnt_lock; | |
| }; | |
| /** | |
| * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh | |
| * @orig: originator ethernet address | |
| * @ifinfo_list: list for routers per outgoing interface | |
| * @last_bonding_candidate: pointer to last ifinfo of last used router | |
| * @dat_addr: address of the orig node in the distributed hash | |
| * @last_seen: time when last packet from this node was received | |
| * @bcast_seqno_reset: time when the broadcast seqno window was reset | |
| * @mcast_handler_lock: synchronizes mcast-capability and -flag changes | |
| * @mcast_flags: multicast flags announced by the orig node | |
| * @mcast_want_all_unsnoopables_node: a list node for the | |
| * mcast.want_all_unsnoopables list | |
| * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4 list | |
| * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6 list | |
| * @capabilities: announced capabilities of this originator | |
| * @capa_initialized: bitfield to remember whether a capability was initialized | |
| * @last_ttvn: last seen translation table version number | |
| * @tt_buff: last tt changeset this node received from the orig node | |
| * @tt_buff_len: length of the last tt changeset this node received from the | |
| * orig node | |
| * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
| * @tt_lock: prevents from updating the table while reading it. Table update is | |
| * made up by two operations (data structure update and metdata -CRC/TTVN- | |
| * recalculation) and they have to be executed atomically in order to avoid | |
| * another thread to read the table/metadata between those. | |
| * @bcast_bits: bitfield containing the info which payload broadcast originated | |
| * from this orig node this host already has seen (relative to | |
| * last_bcast_seqno) | |
| * @last_bcast_seqno: last broadcast sequence number received by this host | |
| * @neigh_list: list of potential next hop neighbor towards this orig node | |
| * @neigh_list_lock: lock protecting neigh_list and router | |
| * @hash_entry: hlist node for batadv_priv::orig_hash | |
| * @bat_priv: pointer to soft_iface this orig node belongs to | |
| * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| * @in_coding_list: list of nodes this orig can hear | |
| * @out_coding_list: list of nodes that can hear this orig | |
| * @in_coding_list_lock: protects in_coding_list | |
| * @out_coding_list_lock: protects out_coding_list | |
| * @fragments: array with heads for fragment chains | |
| * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the | |
| * originator represented by this object | |
| * @vlan_list_lock: lock protecting vlan_list | |
| * @bat_iv: B.A.T.M.A.N. IV private structure | |
| */ | |
| struct batadv_orig_node { | |
| u8 orig[ETH_ALEN]; | |
| struct hlist_head ifinfo_list; | |
| struct batadv_orig_ifinfo *last_bonding_candidate; | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| batadv_dat_addr_t dat_addr; | |
| #endif | |
| unsigned long last_seen; | |
| unsigned long bcast_seqno_reset; | |
| #ifdef CONFIG_BATMAN_ADV_MCAST | |
| /* synchronizes mcast tvlv specific orig changes */ | |
| spinlock_t mcast_handler_lock; | |
| u8 mcast_flags; | |
| struct hlist_node mcast_want_all_unsnoopables_node; | |
| struct hlist_node mcast_want_all_ipv4_node; | |
| struct hlist_node mcast_want_all_ipv6_node; | |
| #endif | |
| unsigned long capabilities; | |
| unsigned long capa_initialized; | |
| atomic_t last_ttvn; | |
| unsigned char *tt_buff; | |
| s16 tt_buff_len; | |
| spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ | |
| /* prevents from changing the table while reading it */ | |
| spinlock_t tt_lock; | |
| DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); | |
| u32 last_bcast_seqno; | |
| struct hlist_head neigh_list; | |
| /* neigh_list_lock protects: neigh_list, ifinfo_list, | |
| * last_bonding_candidate and router | |
| */ | |
| spinlock_t neigh_list_lock; | |
| struct hlist_node hash_entry; | |
| struct batadv_priv *bat_priv; | |
| /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ | |
| spinlock_t bcast_seqno_lock; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| #ifdef CONFIG_BATMAN_ADV_NC | |
| struct list_head in_coding_list; | |
| struct list_head out_coding_list; | |
| spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
| spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
| #endif | |
| struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; | |
| struct hlist_head vlan_list; | |
| spinlock_t vlan_list_lock; /* protects vlan_list */ | |
| struct batadv_orig_bat_iv bat_iv; | |
| }; | |
| /** | |
| * enum batadv_orig_capabilities - orig node capabilities | |
| * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled | |
| * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled | |
| * @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability | |
| * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability | |
| * (= orig node announces a tvlv of type BATADV_TVLV_MCAST) | |
| */ | |
| enum batadv_orig_capabilities { | |
| BATADV_ORIG_CAPA_HAS_DAT, | |
| BATADV_ORIG_CAPA_HAS_NC, | |
| BATADV_ORIG_CAPA_HAS_TT, | |
| BATADV_ORIG_CAPA_HAS_MCAST, | |
| }; | |
| /** | |
| * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
| * @list: list node for batadv_priv_gw::list | |
| * @orig_node: pointer to corresponding orig node | |
| * @bandwidth_down: advertised uplink download bandwidth | |
| * @bandwidth_up: advertised uplink upload bandwidth | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_gw_node { | |
| struct hlist_node list; | |
| struct batadv_orig_node *orig_node; | |
| u32 bandwidth_down; | |
| u32 bandwidth_up; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| DECLARE_EWMA(throughput, 10, 8) | |
| /** | |
| * struct batadv_hardif_neigh_node_bat_v - B.A.T.M.A.N. V private neighbor | |
| * information | |
| * @throughput: ewma link throughput towards this neighbor | |
| * @elp_interval: time interval between two ELP transmissions | |
| * @elp_latest_seqno: latest and best known ELP sequence number | |
| * @last_unicast_tx: when the last unicast packet has been sent to this neighbor | |
| * @metric_work: work queue callback item for metric update | |
| */ | |
| struct batadv_hardif_neigh_node_bat_v { | |
| struct ewma_throughput throughput; | |
| u32 elp_interval; | |
| u32 elp_latest_seqno; | |
| unsigned long last_unicast_tx; | |
| struct work_struct metric_work; | |
| }; | |
| /** | |
| * struct batadv_hardif_neigh_node - unique neighbor per hard-interface | |
| * @list: list node for batadv_hard_iface::neigh_list | |
| * @addr: the MAC address of the neighboring interface | |
| * @orig: the address of the originator this neighbor node belongs to | |
| * @if_incoming: pointer to incoming hard-interface | |
| * @last_seen: when last packet via this neighbor was received | |
| * @bat_v: B.A.T.M.A.N. V private data | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in a RCU-safe manner | |
| */ | |
| struct batadv_hardif_neigh_node { | |
| struct hlist_node list; | |
| u8 addr[ETH_ALEN]; | |
| u8 orig[ETH_ALEN]; | |
| struct batadv_hard_iface *if_incoming; | |
| unsigned long last_seen; | |
| #ifdef CONFIG_BATMAN_ADV_BATMAN_V | |
| struct batadv_hardif_neigh_node_bat_v bat_v; | |
| #endif | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_neigh_node - structure for single hops neighbors | |
| * @list: list node for batadv_orig_node::neigh_list | |
| * @orig_node: pointer to corresponding orig_node | |
| * @addr: the MAC address of the neighboring interface | |
| * @ifinfo_list: list for routing metrics per outgoing interface | |
| * @ifinfo_lock: lock protecting private ifinfo members and list | |
| * @if_incoming: pointer to incoming hard-interface | |
| * @last_seen: when last packet via this neighbor was received | |
| * @hardif_neigh: hardif_neigh of this neighbor | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_neigh_node { | |
| struct hlist_node list; | |
| struct batadv_orig_node *orig_node; | |
| u8 addr[ETH_ALEN]; | |
| struct hlist_head ifinfo_list; | |
| spinlock_t ifinfo_lock; /* protects ifinfo_list and its members */ | |
| struct batadv_hard_iface *if_incoming; | |
| unsigned long last_seen; | |
| struct batadv_hardif_neigh_node *hardif_neigh; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing | |
| * interface for B.A.T.M.A.N. IV | |
| * @tq_recv: ring buffer of received TQ values from this neigh node | |
| * @tq_index: ring buffer index | |
| * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
| * @real_bits: bitfield containing the number of OGMs received from this neigh | |
| * node (relative to orig_node->last_real_seqno) | |
| * @real_packet_count: counted result of real_bits | |
| */ | |
| struct batadv_neigh_ifinfo_bat_iv { | |
| u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; | |
| u8 tq_index; | |
| u8 tq_avg; | |
| DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); | |
| u8 real_packet_count; | |
| }; | |
| /** | |
| * struct batadv_neigh_ifinfo_bat_v - neighbor information per outgoing | |
| * interface for B.A.T.M.A.N. V | |
| * @throughput: last throughput metric received from originator via this neigh | |
| * @last_seqno: last sequence number known for this neighbor | |
| */ | |
| struct batadv_neigh_ifinfo_bat_v { | |
| u32 throughput; | |
| u32 last_seqno; | |
| }; | |
| /** | |
| * struct batadv_neigh_ifinfo - neighbor information per outgoing interface | |
| * @list: list node for batadv_neigh_node::ifinfo_list | |
| * @if_outgoing: pointer to outgoing hard-interface | |
| * @bat_iv: B.A.T.M.A.N. IV private structure | |
| * @bat_v: B.A.T.M.A.N. V private data | |
| * @last_ttl: last received ttl from this neigh node | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in a RCU-safe manner | |
| */ | |
| struct batadv_neigh_ifinfo { | |
| struct hlist_node list; | |
| struct batadv_hard_iface *if_outgoing; | |
| struct batadv_neigh_ifinfo_bat_iv bat_iv; | |
| #ifdef CONFIG_BATMAN_ADV_BATMAN_V | |
| struct batadv_neigh_ifinfo_bat_v bat_v; | |
| #endif | |
| u8 last_ttl; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| #ifdef CONFIG_BATMAN_ADV_BLA | |
| /** | |
| * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
| * @orig: mac address of orig node orginating the broadcast | |
| * @crc: crc32 checksum of broadcast payload | |
| * @entrytime: time when the broadcast packet was received | |
| */ | |
| struct batadv_bcast_duplist_entry { | |
| u8 orig[ETH_ALEN]; | |
| __be32 crc; | |
| unsigned long entrytime; | |
| }; | |
| #endif | |
| /** | |
| * enum batadv_counters - indices for traffic counters | |
| * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
| * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
| * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
| * @BATADV_CNT_RX: received payload traffic packet counter | |
| * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
| * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
| * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
| * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
| * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
| * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
| * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
| * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter | |
| * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
| * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter | |
| * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
| * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter | |
| * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
| * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter | |
| * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
| * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
| * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
| * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
| * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
| * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
| * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
| * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
| * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
| * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
| * counter | |
| * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter | |
| * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
| * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
| * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
| * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding | |
| * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter | |
| * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
| * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
| * counter | |
| * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
| * mode. | |
| * @BATADV_CNT_NUM: number of traffic counters | |
| */ | |
| enum batadv_counters { | |
| BATADV_CNT_TX, | |
| BATADV_CNT_TX_BYTES, | |
| BATADV_CNT_TX_DROPPED, | |
| BATADV_CNT_RX, | |
| BATADV_CNT_RX_BYTES, | |
| BATADV_CNT_FORWARD, | |
| BATADV_CNT_FORWARD_BYTES, | |
| BATADV_CNT_MGMT_TX, | |
| BATADV_CNT_MGMT_TX_BYTES, | |
| BATADV_CNT_MGMT_RX, | |
| BATADV_CNT_MGMT_RX_BYTES, | |
| BATADV_CNT_FRAG_TX, | |
| BATADV_CNT_FRAG_TX_BYTES, | |
| BATADV_CNT_FRAG_RX, | |
| BATADV_CNT_FRAG_RX_BYTES, | |
| BATADV_CNT_FRAG_FWD, | |
| BATADV_CNT_FRAG_FWD_BYTES, | |
| BATADV_CNT_TT_REQUEST_TX, | |
| BATADV_CNT_TT_REQUEST_RX, | |
| BATADV_CNT_TT_RESPONSE_TX, | |
| BATADV_CNT_TT_RESPONSE_RX, | |
| BATADV_CNT_TT_ROAM_ADV_TX, | |
| BATADV_CNT_TT_ROAM_ADV_RX, | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| BATADV_CNT_DAT_GET_TX, | |
| BATADV_CNT_DAT_GET_RX, | |
| BATADV_CNT_DAT_PUT_TX, | |
| BATADV_CNT_DAT_PUT_RX, | |
| BATADV_CNT_DAT_CACHED_REPLY_TX, | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_NC | |
| BATADV_CNT_NC_CODE, | |
| BATADV_CNT_NC_CODE_BYTES, | |
| BATADV_CNT_NC_RECODE, | |
| BATADV_CNT_NC_RECODE_BYTES, | |
| BATADV_CNT_NC_BUFFER, | |
| BATADV_CNT_NC_DECODE, | |
| BATADV_CNT_NC_DECODE_BYTES, | |
| BATADV_CNT_NC_DECODE_FAILED, | |
| BATADV_CNT_NC_SNIFFED, | |
| #endif | |
| BATADV_CNT_NUM, | |
| }; | |
| /** | |
| * struct batadv_priv_tt - per mesh interface translation table data | |
| * @vn: translation table version number | |
| * @ogm_append_cnt: counter of number of OGMs containing the local tt diff | |
| * @local_changes: changes registered in an originator interval | |
| * @changes_list: tracks tt local changes within an originator interval | |
| * @local_hash: local translation table hash table | |
| * @global_hash: global translation table hash table | |
| * @req_list: list of pending & unanswered tt_requests | |
| * @roam_list: list of the last roaming events of each client limiting the | |
| * number of roaming events to avoid route flapping | |
| * @changes_list_lock: lock protecting changes_list | |
| * @req_list_lock: lock protecting req_list | |
| * @roam_list_lock: lock protecting roam_list | |
| * @last_changeset: last tt changeset this host has generated | |
| * @last_changeset_len: length of last tt changeset this host has generated | |
| * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
| * @commit_lock: prevents from executing a local TT commit while reading the | |
| * local table. The local TT commit is made up by two operations (data | |
| * structure update and metdata -CRC/TTVN- recalculation) and they have to be | |
| * executed atomically in order to avoid another thread to read the | |
| * table/metadata between those. | |
| * @work: work queue callback item for translation table purging | |
| */ | |
| struct batadv_priv_tt { | |
| atomic_t vn; | |
| atomic_t ogm_append_cnt; | |
| atomic_t local_changes; | |
| struct list_head changes_list; | |
| struct batadv_hashtable *local_hash; | |
| struct batadv_hashtable *global_hash; | |
| struct hlist_head req_list; | |
| struct list_head roam_list; | |
| spinlock_t changes_list_lock; /* protects changes */ | |
| spinlock_t req_list_lock; /* protects req_list */ | |
| spinlock_t roam_list_lock; /* protects roam_list */ | |
| unsigned char *last_changeset; | |
| s16 last_changeset_len; | |
| /* protects last_changeset & last_changeset_len */ | |
| spinlock_t last_changeset_lock; | |
| /* prevents from executing a commit while reading the table */ | |
| spinlock_t commit_lock; | |
| struct delayed_work work; | |
| }; | |
| #ifdef CONFIG_BATMAN_ADV_BLA | |
| /** | |
| * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
| * @num_requests: number of bla requests in flight | |
| * @claim_hash: hash table containing mesh nodes this host has claimed | |
| * @backbone_hash: hash table containing all detected backbone gateways | |
| * @loopdetect_addr: MAC address used for own loopdetection frames | |
| * @loopdetect_lasttime: time when the loopdetection frames were sent | |
| * @loopdetect_next: how many periods to wait for the next loopdetect process | |
| * @bcast_duplist: recently received broadcast packets array (for broadcast | |
| * duplicate suppression) | |
| * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
| * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
| * @claim_dest: local claim data (e.g. claim group) | |
| * @work: work queue callback item for cleanups & bla announcements | |
| */ | |
| struct batadv_priv_bla { | |
| atomic_t num_requests; | |
| struct batadv_hashtable *claim_hash; | |
| struct batadv_hashtable *backbone_hash; | |
| u8 loopdetect_addr[ETH_ALEN]; | |
| unsigned long loopdetect_lasttime; | |
| atomic_t loopdetect_next; | |
| struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
| int bcast_duplist_curr; | |
| /* protects bcast_duplist & bcast_duplist_curr */ | |
| spinlock_t bcast_duplist_lock; | |
| struct batadv_bla_claim_dst claim_dest; | |
| struct delayed_work work; | |
| }; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_DEBUG | |
| /** | |
| * struct batadv_priv_debug_log - debug logging data | |
| * @log_buff: buffer holding the logs (ring bufer) | |
| * @log_start: index of next character to read | |
| * @log_end: index of next character to write | |
| * @lock: lock protecting log_buff, log_start & log_end | |
| * @queue_wait: log reader's wait queue | |
| */ | |
| struct batadv_priv_debug_log { | |
| char log_buff[BATADV_LOG_BUF_LEN]; | |
| unsigned long log_start; | |
| unsigned long log_end; | |
| spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
| wait_queue_head_t queue_wait; | |
| }; | |
| #endif | |
| /** | |
| * struct batadv_priv_gw - per mesh interface gateway data | |
| * @gateway_list: list of available gateway nodes | |
| * @list_lock: lock protecting gateway_list & curr_gw | |
| * @curr_gw: pointer to currently selected gateway node | |
| * @mode: gateway operation: off, client or server (see batadv_gw_modes) | |
| * @sel_class: gateway selection class (applies if gw_mode client) | |
| * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) | |
| * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
| * @reselect: bool indicating a gateway re-selection is in progress | |
| */ | |
| struct batadv_priv_gw { | |
| struct hlist_head gateway_list; | |
| spinlock_t list_lock; /* protects gateway_list & curr_gw */ | |
| struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ | |
| atomic_t mode; | |
| atomic_t sel_class; | |
| atomic_t bandwidth_down; | |
| atomic_t bandwidth_up; | |
| atomic_t reselect; | |
| }; | |
| /** | |
| * struct batadv_priv_tvlv - per mesh interface tvlv data | |
| * @container_list: list of registered tvlv containers to be sent with each OGM | |
| * @handler_list: list of the various tvlv content handlers | |
| * @container_list_lock: protects tvlv container list access | |
| * @handler_list_lock: protects handler list access | |
| */ | |
| struct batadv_priv_tvlv { | |
| struct hlist_head container_list; | |
| struct hlist_head handler_list; | |
| spinlock_t container_list_lock; /* protects container_list */ | |
| spinlock_t handler_list_lock; /* protects handler_list */ | |
| }; | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| /** | |
| * struct batadv_priv_dat - per mesh interface DAT private data | |
| * @addr: node DAT address | |
| * @hash: hashtable representing the local ARP cache | |
| * @work: work queue callback item for cache purging | |
| */ | |
| struct batadv_priv_dat { | |
| batadv_dat_addr_t addr; | |
| struct batadv_hashtable *hash; | |
| struct delayed_work work; | |
| }; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_MCAST | |
| /** | |
| * struct batadv_mcast_querier_state - IGMP/MLD querier state when bridged | |
| * @exists: whether a querier exists in the mesh | |
| * @shadowing: if a querier exists, whether it is potentially shadowing | |
| * multicast listeners (i.e. querier is behind our own bridge segment) | |
| */ | |
| struct batadv_mcast_querier_state { | |
| bool exists; | |
| bool shadowing; | |
| }; | |
| /** | |
| * struct batadv_priv_mcast - per mesh interface mcast data | |
| * @mla_list: list of multicast addresses we are currently announcing via TT | |
| * @want_all_unsnoopables_list: a list of orig_nodes wanting all unsnoopable | |
| * multicast traffic | |
| * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast traffic | |
| * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast traffic | |
| * @querier_ipv4: the current state of an IGMP querier in the mesh | |
| * @querier_ipv6: the current state of an MLD querier in the mesh | |
| * @flags: the flags we have last sent in our mcast tvlv | |
| * @enabled: whether the multicast tvlv is currently enabled | |
| * @bridged: whether the soft interface has a bridge on top | |
| * @num_disabled: number of nodes that have no mcast tvlv | |
| * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP traffic | |
| * @num_want_all_ipv4: counter for items in want_all_ipv4_list | |
| * @num_want_all_ipv6: counter for items in want_all_ipv6_list | |
| * @want_lists_lock: lock for protecting modifications to mcast want lists | |
| * (traversals are rcu-locked) | |
| * @work: work queue callback item for multicast TT and TVLV updates | |
| */ | |
| struct batadv_priv_mcast { | |
| struct hlist_head mla_list; /* see __batadv_mcast_mla_update() */ | |
| struct hlist_head want_all_unsnoopables_list; | |
| struct hlist_head want_all_ipv4_list; | |
| struct hlist_head want_all_ipv6_list; | |
| struct batadv_mcast_querier_state querier_ipv4; | |
| struct batadv_mcast_querier_state querier_ipv6; | |
| u8 flags; | |
| bool enabled; | |
| bool bridged; | |
| atomic_t num_disabled; | |
| atomic_t num_want_all_unsnoopables; | |
| atomic_t num_want_all_ipv4; | |
| atomic_t num_want_all_ipv6; | |
| /* protects want_all_{unsnoopables,ipv4,ipv6}_list */ | |
| spinlock_t want_lists_lock; | |
| struct delayed_work work; | |
| }; | |
| #endif | |
| /** | |
| * struct batadv_priv_nc - per mesh interface network coding private data | |
| * @work: work queue callback item for cleanup | |
| * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs | |
| * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
| * @max_fwd_delay: maximum packet forward delay to allow coding of packets | |
| * @max_buffer_time: buffer time for sniffed packets used to decoding | |
| * @timestamp_fwd_flush: timestamp of last forward packet queue flush | |
| * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge | |
| * @coding_hash: Hash table used to buffer skbs while waiting for another | |
| * incoming skb to code it with. Skbs are added to the buffer just before being | |
| * forwarded in routing.c | |
| * @decoding_hash: Hash table used to buffer skbs that might be needed to decode | |
| * a received coded skb. The buffer is used for 1) skbs arriving on the | |
| * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
| * forwarded by batman-adv. | |
| */ | |
| struct batadv_priv_nc { | |
| struct delayed_work work; | |
| struct dentry *debug_dir; | |
| u8 min_tq; | |
| u32 max_fwd_delay; | |
| u32 max_buffer_time; | |
| unsigned long timestamp_fwd_flush; | |
| unsigned long timestamp_sniffed_purge; | |
| struct batadv_hashtable *coding_hash; | |
| struct batadv_hashtable *decoding_hash; | |
| }; | |
| /** | |
| * struct batadv_tp_unacked - unacked packet meta-information | |
| * @seqno: seqno of the unacked packet | |
| * @len: length of the packet | |
| * @list: list node for batadv_tp_vars::unacked_list | |
| * | |
| * This struct is supposed to represent a buffer unacked packet. However, since | |
| * the purpose of the TP meter is to count the traffic only, there is no need to | |
| * store the entire sk_buff, the starting offset and the length are enough | |
| */ | |
| struct batadv_tp_unacked { | |
| u32 seqno; | |
| u16 len; | |
| struct list_head list; | |
| }; | |
| /** | |
| * enum batadv_tp_meter_role - Modus in tp meter session | |
| * @BATADV_TP_RECEIVER: Initialized as receiver | |
| * @BATADV_TP_SENDER: Initialized as sender | |
| */ | |
| enum batadv_tp_meter_role { | |
| BATADV_TP_RECEIVER, | |
| BATADV_TP_SENDER | |
| }; | |
| /** | |
| * struct batadv_tp_vars - tp meter private variables per session | |
| * @list: list node for bat_priv::tp_list | |
| * @timer: timer for ack (receiver) and retry (sender) | |
| * @bat_priv: pointer to the mesh object | |
| * @start_time: start time in jiffies | |
| * @other_end: mac address of remote | |
| * @role: receiver/sender modi | |
| * @sending: sending binary semaphore: 1 if sending, 0 is not | |
| * @reason: reason for a stopped session | |
| * @finish_work: work item for the finishing procedure | |
| * @test_length: test length in milliseconds | |
| * @session: TP session identifier | |
| * @icmp_uid: local ICMP "socket" index | |
| * @dec_cwnd: decimal part of the cwnd used during linear growth | |
| * @cwnd: current size of the congestion window | |
| * @cwnd_lock: lock do protect @cwnd & @dec_cwnd | |
| * @ss_threshold: Slow Start threshold. Once cwnd exceeds this value the | |
| * connection switches to the Congestion Avoidance state | |
| * @last_acked: last acked byte | |
| * @last_sent: last sent byte, not yet acked | |
| * @tot_sent: amount of data sent/ACKed so far | |
| * @dup_acks: duplicate ACKs counter | |
| * @fast_recovery: true if in Fast Recovery mode | |
| * @recover: last sent seqno when entering Fast Recovery | |
| * @rto: sender timeout | |
| * @srtt: smoothed RTT scaled by 2^3 | |
| * @rttvar: RTT variation scaled by 2^2 | |
| * @more_bytes: waiting queue anchor when waiting for more ack/retry timeout | |
| * @prerandom_offset: offset inside the prerandom buffer | |
| * @prerandom_lock: spinlock protecting access to prerandom_offset | |
| * @last_recv: last in-order received packet | |
| * @unacked_list: list of unacked packets (meta-info only) | |
| * @unacked_lock: protect unacked_list | |
| * @last_recv_time: time time (jiffies) a msg was received | |
| * @refcount: number of context where the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_tp_vars { | |
| struct hlist_node list; | |
| struct timer_list timer; | |
| struct batadv_priv *bat_priv; | |
| unsigned long start_time; | |
| u8 other_end[ETH_ALEN]; | |
| enum batadv_tp_meter_role role; | |
| atomic_t sending; | |
| enum batadv_tp_meter_reason reason; | |
| struct delayed_work finish_work; | |
| u32 test_length; | |
| u8 session[2]; | |
| u8 icmp_uid; | |
| /* sender variables */ | |
| u16 dec_cwnd; | |
| u32 cwnd; | |
| spinlock_t cwnd_lock; /* Protects cwnd & dec_cwnd */ | |
| u32 ss_threshold; | |
| atomic_t last_acked; | |
| u32 last_sent; | |
| atomic64_t tot_sent; | |
| atomic_t dup_acks; | |
| bool fast_recovery; | |
| u32 recover; | |
| u32 rto; | |
| u32 srtt; | |
| u32 rttvar; | |
| wait_queue_head_t more_bytes; | |
| u32 prerandom_offset; | |
| spinlock_t prerandom_lock; /* Protects prerandom_offset */ | |
| /* receiver variables */ | |
| u32 last_recv; | |
| struct list_head unacked_list; | |
| spinlock_t unacked_lock; /* Protects unacked_list */ | |
| unsigned long last_recv_time; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_softif_vlan - per VLAN attributes set | |
| * @bat_priv: pointer to the mesh object | |
| * @vid: VLAN identifier | |
| * @kobj: kobject for sysfs vlan subdirectory | |
| * @ap_isolation: AP isolation state | |
| * @tt: TT private attributes (VLAN specific) | |
| * @list: list node for bat_priv::softif_vlan_list | |
| * @refcount: number of context where this object is currently in use | |
| * @rcu: struct used for freeing in a RCU-safe manner | |
| */ | |
| struct batadv_softif_vlan { | |
| struct batadv_priv *bat_priv; | |
| unsigned short vid; | |
| struct kobject *kobj; | |
| atomic_t ap_isolation; /* boolean */ | |
| struct batadv_vlan_tt tt; | |
| struct hlist_node list; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data | |
| * @ogm_buff: buffer holding the OGM packet | |
| * @ogm_buff_len: length of the OGM packet buffer | |
| * @ogm_seqno: OGM sequence number - used to identify each OGM | |
| * @ogm_wq: workqueue used to schedule OGM transmissions | |
| */ | |
| struct batadv_priv_bat_v { | |
| unsigned char *ogm_buff; | |
| int ogm_buff_len; | |
| atomic_t ogm_seqno; | |
| struct delayed_work ogm_wq; | |
| }; | |
| /** | |
| * struct batadv_priv - per mesh interface data | |
| * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
| * @soft_iface: net device which holds this struct as private data | |
| * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
| * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
| * @bonding: bool indicating whether traffic bonding is enabled | |
| * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
| * @packet_size_max: max packet size that can be transmitted via | |
| * multiple fragmented skbs or a single frame if fragmentation is disabled | |
| * @frag_seqno: incremental counter to identify chains of egress fragments | |
| * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is | |
| * enabled | |
| * @distributed_arp_table: bool indicating whether distributed ARP table is | |
| * enabled | |
| * @multicast_mode: Enable or disable multicast optimizations on this node's | |
| * sender/originating side | |
| * @orig_interval: OGM broadcast interval in milliseconds | |
| * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
| * @log_level: configured log level (see batadv_dbg_level) | |
| * @isolation_mark: the skb->mark value used to match packets for AP isolation | |
| * @isolation_mark_mask: bitmask identifying the bits in skb->mark to be used | |
| * for the isolation mark | |
| * @bcast_seqno: last sent broadcast packet sequence number | |
| * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
| * @batman_queue_left: number of remaining OGM packet slots | |
| * @num_ifaces: number of interfaces assigned to this mesh interface | |
| * @mesh_obj: kobject for sysfs mesh subdirectory | |
| * @debug_dir: dentry for debugfs batman-adv subdirectory | |
| * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
| * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
| * @tp_list: list of tp sessions | |
| * @tp_num: number of currently active tp sessions | |
| * @orig_hash: hash table containing mesh participants (orig nodes) | |
| * @forw_bat_list_lock: lock protecting forw_bat_list | |
| * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
| * @tp_list_lock: spinlock protecting @tp_list | |
| * @orig_work: work queue callback item for orig node purging | |
| * @primary_if: one of the hard-interfaces assigned to this mesh interface | |
| * becomes the primary interface | |
| * @algo_ops: routing algorithm used by this mesh interface | |
| * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top | |
| * of the mesh interface represented by this object | |
| * @softif_vlan_list_lock: lock protecting softif_vlan_list | |
| * @bla: bridge loope avoidance data | |
| * @debug_log: holding debug logging relevant data | |
| * @gw: gateway data | |
| * @tt: translation table data | |
| * @tvlv: type-version-length-value data | |
| * @dat: distributed arp table data | |
| * @mcast: multicast data | |
| * @network_coding: bool indicating whether network coding is enabled | |
| * @nc: network coding data | |
| * @bat_v: B.A.T.M.A.N. V per soft-interface private data | |
| */ | |
| struct batadv_priv { | |
| atomic_t mesh_state; | |
| struct net_device *soft_iface; | |
| u64 __percpu *bat_counters; /* Per cpu counters */ | |
| atomic_t aggregated_ogms; | |
| atomic_t bonding; | |
| atomic_t fragmentation; | |
| atomic_t packet_size_max; | |
| atomic_t frag_seqno; | |
| #ifdef CONFIG_BATMAN_ADV_BLA | |
| atomic_t bridge_loop_avoidance; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| atomic_t distributed_arp_table; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_MCAST | |
| atomic_t multicast_mode; | |
| #endif | |
| atomic_t orig_interval; | |
| atomic_t hop_penalty; | |
| #ifdef CONFIG_BATMAN_ADV_DEBUG | |
| atomic_t log_level; | |
| #endif | |
| u32 isolation_mark; | |
| u32 isolation_mark_mask; | |
| atomic_t bcast_seqno; | |
| atomic_t bcast_queue_left; | |
| atomic_t batman_queue_left; | |
| char num_ifaces; | |
| struct kobject *mesh_obj; | |
| struct dentry *debug_dir; | |
| struct hlist_head forw_bat_list; | |
| struct hlist_head forw_bcast_list; | |
| struct hlist_head tp_list; | |
| struct batadv_hashtable *orig_hash; | |
| spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ | |
| spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ | |
| spinlock_t tp_list_lock; /* protects tp_list */ | |
| atomic_t tp_num; | |
| struct delayed_work orig_work; | |
| struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ | |
| struct batadv_algo_ops *algo_ops; | |
| struct hlist_head softif_vlan_list; | |
| spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */ | |
| #ifdef CONFIG_BATMAN_ADV_BLA | |
| struct batadv_priv_bla bla; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_DEBUG | |
| struct batadv_priv_debug_log *debug_log; | |
| #endif | |
| struct batadv_priv_gw gw; | |
| struct batadv_priv_tt tt; | |
| struct batadv_priv_tvlv tvlv; | |
| #ifdef CONFIG_BATMAN_ADV_DAT | |
| struct batadv_priv_dat dat; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_MCAST | |
| struct batadv_priv_mcast mcast; | |
| #endif | |
| #ifdef CONFIG_BATMAN_ADV_NC | |
| atomic_t network_coding; | |
| struct batadv_priv_nc nc; | |
| #endif /* CONFIG_BATMAN_ADV_NC */ | |
| #ifdef CONFIG_BATMAN_ADV_BATMAN_V | |
| struct batadv_priv_bat_v bat_v; | |
| #endif | |
| }; | |
| /** | |
| * struct batadv_socket_client - layer2 icmp socket client data | |
| * @queue_list: packet queue for packets destined for this socket client | |
| * @queue_len: number of packets in the packet queue (queue_list) | |
| * @index: socket client's index in the batadv_socket_client_hash | |
| * @lock: lock protecting queue_list, queue_len & index | |
| * @queue_wait: socket client's wait queue | |
| * @bat_priv: pointer to soft_iface this client belongs to | |
| */ | |
| struct batadv_socket_client { | |
| struct list_head queue_list; | |
| unsigned int queue_len; | |
| unsigned char index; | |
| spinlock_t lock; /* protects queue_list, queue_len & index */ | |
| wait_queue_head_t queue_wait; | |
| struct batadv_priv *bat_priv; | |
| }; | |
| /** | |
| * struct batadv_socket_packet - layer2 icmp packet for socket client | |
| * @list: list node for batadv_socket_client::queue_list | |
| * @icmp_len: size of the layer2 icmp packet | |
| * @icmp_packet: layer2 icmp packet | |
| */ | |
| struct batadv_socket_packet { | |
| struct list_head list; | |
| size_t icmp_len; | |
| u8 icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; | |
| }; | |
| #ifdef CONFIG_BATMAN_ADV_BLA | |
| /** | |
| * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
| * @orig: originator address of backbone node (mac address of primary iface) | |
| * @vid: vlan id this gateway was detected on | |
| * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
| * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
| * @lasttime: last time we heard of this backbone gw | |
| * @wait_periods: grace time for bridge forward delays and bla group forming at | |
| * bootup phase - no bcast traffic is formwared until it has elapsed | |
| * @request_sent: if this bool is set to true we are out of sync with this | |
| * backbone gateway - no bcast traffic is formwared until the situation was | |
| * resolved | |
| * @crc: crc16 checksum over all claims | |
| * @crc_lock: lock protecting crc | |
| * @report_work: work struct for reporting detected loops | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_bla_backbone_gw { | |
| u8 orig[ETH_ALEN]; | |
| unsigned short vid; | |
| struct hlist_node hash_entry; | |
| struct batadv_priv *bat_priv; | |
| unsigned long lasttime; | |
| atomic_t wait_periods; | |
| atomic_t request_sent; | |
| u16 crc; | |
| spinlock_t crc_lock; /* protects crc */ | |
| struct work_struct report_work; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_bla_claim - claimed non-mesh client structure | |
| * @addr: mac address of claimed non-mesh client | |
| * @vid: vlan id this client was detected on | |
| * @backbone_gw: pointer to backbone gw claiming this client | |
| * @backbone_lock: lock protecting backbone_gw pointer | |
| * @lasttime: last time we heard of claim (locals only) | |
| * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_bla_claim { | |
| u8 addr[ETH_ALEN]; | |
| unsigned short vid; | |
| struct batadv_bla_backbone_gw *backbone_gw; | |
| spinlock_t backbone_lock; /* protects backbone_gw */ | |
| unsigned long lasttime; | |
| struct hlist_node hash_entry; | |
| struct rcu_head rcu; | |
| struct kref refcount; | |
| }; | |
| #endif | |
| /** | |
| * struct batadv_tt_common_entry - tt local & tt global common data | |
| * @addr: mac address of non-mesh client | |
| * @vid: VLAN identifier | |
| * @hash_entry: hlist node for batadv_priv_tt::local_hash or for | |
| * batadv_priv_tt::global_hash | |
| * @flags: various state handling flags (see batadv_tt_client_flags) | |
| * @added_at: timestamp used for purging stale tt common entries | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_tt_common_entry { | |
| u8 addr[ETH_ALEN]; | |
| unsigned short vid; | |
| struct hlist_node hash_entry; | |
| u16 flags; | |
| unsigned long added_at; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_tt_local_entry - translation table local entry data | |
| * @common: general translation table data | |
| * @last_seen: timestamp used for purging stale tt local entries | |
| * @vlan: soft-interface vlan of the entry | |
| */ | |
| struct batadv_tt_local_entry { | |
| struct batadv_tt_common_entry common; | |
| unsigned long last_seen; | |
| struct batadv_softif_vlan *vlan; | |
| }; | |
| /** | |
| * struct batadv_tt_global_entry - translation table global entry data | |
| * @common: general translation table data | |
| * @orig_list: list of orig nodes announcing this non-mesh client | |
| * @orig_list_count: number of items in the orig_list | |
| * @list_lock: lock protecting orig_list | |
| * @roam_at: time at which TT_GLOBAL_ROAM was set | |
| */ | |
| struct batadv_tt_global_entry { | |
| struct batadv_tt_common_entry common; | |
| struct hlist_head orig_list; | |
| atomic_t orig_list_count; | |
| spinlock_t list_lock; /* protects orig_list */ | |
| unsigned long roam_at; | |
| }; | |
| /** | |
| * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
| * @orig_node: pointer to orig node announcing this non-mesh client | |
| * @ttvn: translation table version number which added the non-mesh client | |
| * @flags: per orig entry TT sync flags | |
| * @list: list node for batadv_tt_global_entry::orig_list | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_tt_orig_list_entry { | |
| struct batadv_orig_node *orig_node; | |
| u8 ttvn; | |
| u8 flags; | |
| struct hlist_node list; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_tt_change_node - structure for tt changes occurred | |
| * @list: list node for batadv_priv_tt::changes_list | |
| * @change: holds the actual translation table diff data | |
| */ | |
| struct batadv_tt_change_node { | |
| struct list_head list; | |
| struct batadv_tvlv_tt_change change; | |
| }; | |
| /** | |
| * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
| * @addr: mac address address of the originator this request was sent to | |
| * @issued_at: timestamp used for purging stale tt requests | |
| * @refcount: number of contexts the object is used by | |
| * @list: list node for batadv_priv_tt::req_list | |
| */ | |
| struct batadv_tt_req_node { | |
| u8 addr[ETH_ALEN]; | |
| unsigned long issued_at; | |
| struct kref refcount; | |
| struct hlist_node list; | |
| }; | |
| /** | |
| * struct batadv_tt_roam_node - roaming client data | |
| * @addr: mac address of the client in the roaming phase | |
| * @counter: number of allowed roaming events per client within a single | |
| * OGM interval (changes are committed with each OGM) | |
| * @first_time: timestamp used for purging stale roaming node entries | |
| * @list: list node for batadv_priv_tt::roam_list | |
| */ | |
| struct batadv_tt_roam_node { | |
| u8 addr[ETH_ALEN]; | |
| atomic_t counter; | |
| unsigned long first_time; | |
| struct list_head list; | |
| }; | |
| /** | |
| * struct batadv_nc_node - network coding node | |
| * @list: next and prev pointer for the list handling | |
| * @addr: the node's mac address | |
| * @refcount: number of contexts the object is used by | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| * @orig_node: pointer to corresponding orig node struct | |
| * @last_seen: timestamp of last ogm received from this node | |
| */ | |
| struct batadv_nc_node { | |
| struct list_head list; | |
| u8 addr[ETH_ALEN]; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| struct batadv_orig_node *orig_node; | |
| unsigned long last_seen; | |
| }; | |
| /** | |
| * struct batadv_nc_path - network coding path | |
| * @hash_entry: next and prev pointer for the list handling | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| * @refcount: number of contexts the object is used by | |
| * @packet_list: list of buffered packets for this path | |
| * @packet_list_lock: access lock for packet list | |
| * @next_hop: next hop (destination) of path | |
| * @prev_hop: previous hop (source) of path | |
| * @last_valid: timestamp for last validation of path | |
| */ | |
| struct batadv_nc_path { | |
| struct hlist_node hash_entry; | |
| struct rcu_head rcu; | |
| struct kref refcount; | |
| struct list_head packet_list; | |
| spinlock_t packet_list_lock; /* Protects packet_list */ | |
| u8 next_hop[ETH_ALEN]; | |
| u8 prev_hop[ETH_ALEN]; | |
| unsigned long last_valid; | |
| }; | |
| /** | |
| * struct batadv_nc_packet - network coding packet used when coding and | |
| * decoding packets | |
| * @list: next and prev pointer for the list handling | |
| * @packet_id: crc32 checksum of skb data | |
| * @timestamp: field containing the info when the packet was added to path | |
| * @neigh_node: pointer to original next hop neighbor of skb | |
| * @skb: skb which can be encoded or used for decoding | |
| * @nc_path: pointer to path this nc packet is attached to | |
| */ | |
| struct batadv_nc_packet { | |
| struct list_head list; | |
| __be32 packet_id; | |
| unsigned long timestamp; | |
| struct batadv_neigh_node *neigh_node; | |
| struct sk_buff *skb; | |
| struct batadv_nc_path *nc_path; | |
| }; | |
| /** | |
| * struct batadv_skb_cb - control buffer structure used to store private data | |
| * relevant to batman-adv in the skb->cb buffer in skbs. | |
| * @decoded: Marks a skb as decoded, which is checked when searching for coding | |
| * opportunities in network-coding.c | |
| * @num_bcasts: Counter for broadcast packet retransmissions | |
| */ | |
| struct batadv_skb_cb { | |
| bool decoded; | |
| unsigned int num_bcasts; | |
| }; | |
| /** | |
| * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
| * @list: list node for batadv_priv::forw_{bat,bcast}_list | |
| * @cleanup_list: list node for purging functions | |
| * @send_time: execution time for delayed_work (packet sending) | |
| * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
| * sending) | |
| * @skb: bcast packet's skb buffer | |
| * @packet_len: size of aggregated OGM packet inside the skb buffer | |
| * @direct_link_flags: direct link flags for aggregated OGM packets | |
| * @num_packets: counter for aggregated OGMv1 packets | |
| * @delayed_work: work queue callback item for packet sending | |
| * @if_incoming: pointer to incoming hard-iface or primary iface if | |
| * locally generated packet | |
| * @if_outgoing: packet where the packet should be sent to, or NULL if | |
| * unspecified | |
| * @queue_left: The queue (counter) this packet was applied to | |
| */ | |
| struct batadv_forw_packet { | |
| struct hlist_node list; | |
| struct hlist_node cleanup_list; | |
| unsigned long send_time; | |
| u8 own; | |
| struct sk_buff *skb; | |
| u16 packet_len; | |
| u32 direct_link_flags; | |
| u8 num_packets; | |
| struct delayed_work delayed_work; | |
| struct batadv_hard_iface *if_incoming; | |
| struct batadv_hard_iface *if_outgoing; | |
| atomic_t *queue_left; | |
| }; | |
| /** | |
| * struct batadv_algo_iface_ops - mesh algorithm callbacks (interface specific) | |
| * @activate: start routing mechanisms when hard-interface is brought up | |
| * (optional) | |
| * @enable: init routing info when hard-interface is enabled | |
| * @disable: de-init routing info when hard-interface is disabled | |
| * @update_mac: (re-)init mac addresses of the protocol information | |
| * belonging to this hard-interface | |
| * @primary_set: called when primary interface is selected / changed | |
| */ | |
| struct batadv_algo_iface_ops { | |
| void (*activate)(struct batadv_hard_iface *hard_iface); | |
| int (*enable)(struct batadv_hard_iface *hard_iface); | |
| void (*disable)(struct batadv_hard_iface *hard_iface); | |
| void (*update_mac)(struct batadv_hard_iface *hard_iface); | |
| void (*primary_set)(struct batadv_hard_iface *hard_iface); | |
| }; | |
| /** | |
| * struct batadv_algo_neigh_ops - mesh algorithm callbacks (neighbour specific) | |
| * @hardif_init: called on creation of single hop entry | |
| * (optional) | |
| * @cmp: compare the metrics of two neighbors for their respective outgoing | |
| * interfaces | |
| * @is_similar_or_better: check if neigh1 is equally similar or better than | |
| * neigh2 for their respective outgoing interface from the metric prospective | |
| * @print: print the single hop neighbor list (optional) | |
| * @dump: dump neighbors to a netlink socket (optional) | |
| */ | |
| struct batadv_algo_neigh_ops { | |
| void (*hardif_init)(struct batadv_hardif_neigh_node *neigh); | |
| int (*cmp)(struct batadv_neigh_node *neigh1, | |
| struct batadv_hard_iface *if_outgoing1, | |
| struct batadv_neigh_node *neigh2, | |
| struct batadv_hard_iface *if_outgoing2); | |
| bool (*is_similar_or_better)(struct batadv_neigh_node *neigh1, | |
| struct batadv_hard_iface *if_outgoing1, | |
| struct batadv_neigh_node *neigh2, | |
| struct batadv_hard_iface *if_outgoing2); | |
| #ifdef CONFIG_BATMAN_ADV_DEBUGFS | |
| void (*print)(struct batadv_priv *priv, struct seq_file *seq); | |
| #endif | |
| void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, | |
| struct batadv_priv *priv, | |
| struct batadv_hard_iface *hard_iface); | |
| }; | |
| /** | |
| * struct batadv_algo_orig_ops - mesh algorithm callbacks (originator specific) | |
| * @free: free the resources allocated by the routing algorithm for an orig_node | |
| * object (optional) | |
| * @add_if: ask the routing algorithm to apply the needed changes to the | |
| * orig_node due to a new hard-interface being added into the mesh (optional) | |
| * @del_if: ask the routing algorithm to apply the needed changes to the | |
| * orig_node due to an hard-interface being removed from the mesh (optional) | |
| * @print: print the originator table (optional) | |
| * @dump: dump originators to a netlink socket (optional) | |
| */ | |
| struct batadv_algo_orig_ops { | |
| void (*free)(struct batadv_orig_node *orig_node); | |
| int (*add_if)(struct batadv_orig_node *orig_node, int max_if_num); | |
| int (*del_if)(struct batadv_orig_node *orig_node, int max_if_num, | |
| int del_if_num); | |
| #ifdef CONFIG_BATMAN_ADV_DEBUGFS | |
| void (*print)(struct batadv_priv *priv, struct seq_file *seq, | |
| struct batadv_hard_iface *hard_iface); | |
| #endif | |
| void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, | |
| struct batadv_priv *priv, | |
| struct batadv_hard_iface *hard_iface); | |
| }; | |
| /** | |
| * struct batadv_algo_gw_ops - mesh algorithm callbacks (GW specific) | |
| * @init_sel_class: initialize GW selection class (optional) | |
| * @store_sel_class: parse and stores a new GW selection class (optional) | |
| * @show_sel_class: prints the current GW selection class (optional) | |
| * @get_best_gw_node: select the best GW from the list of available nodes | |
| * (optional) | |
| * @is_eligible: check if a newly discovered GW is a potential candidate for | |
| * the election as best GW (optional) | |
| * @print: print the gateway table (optional) | |
| * @dump: dump gateways to a netlink socket (optional) | |
| */ | |
| struct batadv_algo_gw_ops { | |
| void (*init_sel_class)(struct batadv_priv *bat_priv); | |
| ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff, | |
| size_t count); | |
| ssize_t (*show_sel_class)(struct batadv_priv *bat_priv, char *buff); | |
| struct batadv_gw_node *(*get_best_gw_node) | |
| (struct batadv_priv *bat_priv); | |
| bool (*is_eligible)(struct batadv_priv *bat_priv, | |
| struct batadv_orig_node *curr_gw_orig, | |
| struct batadv_orig_node *orig_node); | |
| #ifdef CONFIG_BATMAN_ADV_DEBUGFS | |
| void (*print)(struct batadv_priv *bat_priv, struct seq_file *seq); | |
| #endif | |
| void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, | |
| struct batadv_priv *priv); | |
| }; | |
| /** | |
| * struct batadv_algo_ops - mesh algorithm callbacks | |
| * @list: list node for the batadv_algo_list | |
| * @name: name of the algorithm | |
| * @iface: callbacks related to interface handling | |
| * @neigh: callbacks related to neighbors handling | |
| * @orig: callbacks related to originators handling | |
| * @gw: callbacks related to GW mode | |
| */ | |
| struct batadv_algo_ops { | |
| struct hlist_node list; | |
| char *name; | |
| struct batadv_algo_iface_ops iface; | |
| struct batadv_algo_neigh_ops neigh; | |
| struct batadv_algo_orig_ops orig; | |
| struct batadv_algo_gw_ops gw; | |
| }; | |
| /** | |
| * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
| * is used to stored ARP entries needed for the global DAT cache | |
| * @ip: the IPv4 corresponding to this DAT/ARP entry | |
| * @mac_addr: the MAC address associated to the stored IPv4 | |
| * @vid: the vlan ID associated to this entry | |
| * @last_update: time in jiffies when this entry was refreshed last time | |
| * @hash_entry: hlist node for batadv_priv_dat::hash | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_dat_entry { | |
| __be32 ip; | |
| u8 mac_addr[ETH_ALEN]; | |
| unsigned short vid; | |
| unsigned long last_update; | |
| struct hlist_node hash_entry; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * struct batadv_hw_addr - a list entry for a MAC address | |
| * @list: list node for the linking of entries | |
| * @addr: the MAC address of this list entry | |
| */ | |
| struct batadv_hw_addr { | |
| struct hlist_node list; | |
| unsigned char addr[ETH_ALEN]; | |
| }; | |
| /** | |
| * struct batadv_dat_candidate - candidate destination for DAT operations | |
| * @type: the type of the selected candidate. It can one of the following: | |
| * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
| * - BATADV_DAT_CANDIDATE_ORIG | |
| * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
| * corresponding originator node structure | |
| */ | |
| struct batadv_dat_candidate { | |
| int type; | |
| struct batadv_orig_node *orig_node; | |
| }; | |
| /** | |
| * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
| * @list: hlist node for batadv_priv_tvlv::container_list | |
| * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
| * @refcount: number of contexts the object is used | |
| */ | |
| struct batadv_tvlv_container { | |
| struct hlist_node list; | |
| struct batadv_tvlv_hdr tvlv_hdr; | |
| struct kref refcount; | |
| }; | |
| /** | |
| * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
| * @list: hlist node for batadv_priv_tvlv::handler_list | |
| * @ogm_handler: handler callback which is given the tvlv payload to process on | |
| * incoming OGM packets | |
| * @unicast_handler: handler callback which is given the tvlv payload to process | |
| * on incoming unicast tvlv packets | |
| * @type: tvlv type this handler feels responsible for | |
| * @version: tvlv version this handler feels responsible for | |
| * @flags: tvlv handler flags | |
| * @refcount: number of contexts the object is used | |
| * @rcu: struct used for freeing in an RCU-safe manner | |
| */ | |
| struct batadv_tvlv_handler { | |
| struct hlist_node list; | |
| void (*ogm_handler)(struct batadv_priv *bat_priv, | |
| struct batadv_orig_node *orig, | |
| u8 flags, void *tvlv_value, u16 tvlv_value_len); | |
| int (*unicast_handler)(struct batadv_priv *bat_priv, | |
| u8 *src, u8 *dst, | |
| void *tvlv_value, u16 tvlv_value_len); | |
| u8 type; | |
| u8 version; | |
| u8 flags; | |
| struct kref refcount; | |
| struct rcu_head rcu; | |
| }; | |
| /** | |
| * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
| * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
| * this handler even if its type was not found (with no data) | |
| * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
| * a handler as being called, so it won't be called if the | |
| * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
| */ | |
| enum batadv_tvlv_handler_flags { | |
| BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
| BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
| }; | |
| /** | |
| * struct batadv_store_mesh_work - Work queue item to detach add/del interface | |
| * from sysfs locks | |
| * @net_dev: netdevice to add/remove to/from batman-adv soft-interface | |
| * @soft_iface_name: name of soft-interface to modify | |
| * @work: work queue item | |
| */ | |
| struct batadv_store_mesh_work { | |
| struct net_device *net_dev; | |
| char soft_iface_name[IFNAMSIZ]; | |
| struct work_struct work; | |
| }; | |
| #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |