diff options
Diffstat (limited to 'net/batman-adv/types.h')
| -rw-r--r-- | net/batman-adv/types.h | 178 |
1 files changed, 91 insertions, 87 deletions
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index b2c94e1..8fbd89d 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -99,8 +99,7 @@ struct batadv_hard_iface { * @last_seen: time when last packet from this node was received * @bcast_seqno_reset: time when the broadcast seqno window was reset * @batman_seqno_reset: time when the batman seqno window was reset - * @gw_flags: flags related to gateway class - * @flags: for now only VIS_SERVER flag + * @capabilities: announced capabilities of this originator * @last_ttvn: last seen translation table version number * @tt_crc: CRC of the translation table * @tt_buff: last tt changeset this node received from the orig node @@ -147,10 +146,9 @@ struct batadv_orig_node { unsigned long last_seen; unsigned long bcast_seqno_reset; unsigned long batman_seqno_reset; - uint8_t gw_flags; - uint8_t flags; + uint8_t capabilities; atomic_t last_ttvn; - uint16_t tt_crc; + uint32_t tt_crc; unsigned char *tt_buff; int16_t tt_buff_len; spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ @@ -186,9 +184,21 @@ struct batadv_orig_node { }; /** + * 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 + */ +enum batadv_orig_capabilities { + BATADV_ORIG_CAPA_HAS_DAT = BIT(0), + BATADV_ORIG_CAPA_HAS_NC = BIT(1), +}; + +/** * 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 * @deleted: this struct is scheduled for deletion * @refcount: number of contexts the object is used * @rcu: struct used for freeing in an RCU-safe manner @@ -196,6 +206,8 @@ struct batadv_orig_node { struct batadv_gw_node { struct hlist_node list; struct batadv_orig_node *orig_node; + uint32_t bandwidth_down; + uint32_t bandwidth_up; unsigned long deleted; atomic_t refcount; struct rcu_head rcu; @@ -363,7 +375,7 @@ struct batadv_priv_tt { spinlock_t req_list_lock; /* protects req_list */ spinlock_t roam_list_lock; /* protects roam_list */ atomic_t local_entry_num; - uint16_t local_crc; + uint32_t local_crc; unsigned char *last_changeset; int16_t last_changeset_len; /* protects last_changeset & last_changeset_len */ @@ -420,31 +432,31 @@ struct batadv_priv_debug_log { * @list: list of available gateway nodes * @list_lock: lock protecting gw_list & curr_gw * @curr_gw: pointer to currently selected gateway node + * @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 list; spinlock_t list_lock; /* protects gw_list & curr_gw */ struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ + atomic_t bandwidth_down; + atomic_t bandwidth_up; atomic_t reselect; }; /** - * struct batadv_priv_vis - per mesh interface vis data - * @send_list: list of batadv_vis_info packets to sent - * @hash: hash table containing vis data from other nodes in the network - * @hash_lock: lock protecting the hash table - * @list_lock: lock protecting my_info::recv_list - * @work: work queue callback item for vis packet sending - * @my_info: holds this node's vis data sent on a regular basis + * 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_vis { - struct list_head send_list; - struct batadv_hashtable *hash; - spinlock_t hash_lock; /* protects hash */ - spinlock_t list_lock; /* protects my_info::recv_list */ - struct delayed_work work; - struct batadv_vis_info *my_info; +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 */ }; /** @@ -504,10 +516,8 @@ struct batadv_priv_nc { * enabled * @distributed_arp_table: bool indicating whether distributed ARP table is * enabled - * @vis_mode: vis operation: client or server (see batadv_vis_packettype) * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) * @gw_sel_class: gateway selection class (applies if gw_mode client) - * @gw_bandwidth: gateway announced bandwidth (applies if gw_mode server) * @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) @@ -531,7 +541,7 @@ struct batadv_priv_nc { * @debug_log: holding debug logging relevant data * @gw: gateway data * @tt: translation table data - * @vis: vis data + * @tvlv: type-version-length-value data * @dat: distributed arp table data * @network_coding: bool indicating whether network coding is enabled * @batadv_priv_nc: network coding data @@ -551,10 +561,8 @@ struct batadv_priv { #ifdef CONFIG_BATMAN_ADV_DAT atomic_t distributed_arp_table; #endif - atomic_t vis_mode; atomic_t gw_mode; atomic_t gw_sel_class; - atomic_t gw_bandwidth; atomic_t orig_interval; atomic_t hop_penalty; #ifdef CONFIG_BATMAN_ADV_DEBUG @@ -583,7 +591,7 @@ struct batadv_priv { #endif struct batadv_priv_gw gw; struct batadv_priv_tt tt; - struct batadv_priv_vis vis; + struct batadv_priv_tvlv tvlv; #ifdef CONFIG_BATMAN_ADV_DAT struct batadv_priv_dat dat; #endif @@ -740,7 +748,7 @@ struct batadv_tt_orig_list_entry { */ struct batadv_tt_change_node { struct list_head list; - struct batadv_tt_change change; + struct batadv_tvlv_tt_change change; }; /** @@ -878,66 +886,6 @@ struct batadv_frag_packet_list_entry { }; /** - * struct batadv_vis_info - local data for vis information - * @first_seen: timestamp used for purging stale vis info entries - * @recv_list: List of server-neighbors we have received this packet from. This - * packet should not be re-forward to them again. List elements are struct - * batadv_vis_recvlist_node - * @send_list: list of packets to be forwarded - * @refcount: number of contexts the object is used - * @hash_entry: hlist node for batadv_priv_vis::hash - * @bat_priv: pointer to soft_iface this orig node belongs to - * @skb_packet: contains the vis packet - */ -struct batadv_vis_info { - unsigned long first_seen; - struct list_head recv_list; - struct list_head send_list; - struct kref refcount; - struct hlist_node hash_entry; - struct batadv_priv *bat_priv; - struct sk_buff *skb_packet; -} __packed; - -/** - * struct batadv_vis_info_entry - contains link information for vis - * @src: source MAC of the link, all zero for local TT entry - * @dst: destination MAC of the link, client mac address for local TT entry - * @quality: transmission quality of the link, or 0 for local TT entry - */ -struct batadv_vis_info_entry { - uint8_t src[ETH_ALEN]; - uint8_t dest[ETH_ALEN]; - uint8_t quality; -} __packed; - -/** - * struct batadv_vis_recvlist_node - list entry for batadv_vis_info::recv_list - * @list: list node for batadv_vis_info::recv_list - * @mac: MAC address of the originator from where the vis_info was received - */ -struct batadv_vis_recvlist_node { - struct list_head list; - uint8_t mac[ETH_ALEN]; -}; - -/** - * struct batadv_vis_if_list_entry - auxiliary data for vis data generation - * @addr: MAC address of the interface - * @primary: true if this interface is the primary interface - * @list: list node the interface list - * - * While scanning for vis-entries of a particular vis-originator - * this list collects its interfaces to create a subgraph/cluster - * out of them later - */ -struct batadv_vis_if_list_entry { - uint8_t addr[ETH_ALEN]; - bool primary; - struct hlist_node list; -}; - -/** * struct batadv_algo_ops - mesh algorithm callbacks * @list: list node for the batadv_algo_list * @name: name of the algorithm @@ -992,4 +940,60 @@ struct batadv_dat_candidate { 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 + * @value_len: length of the buffer following this struct which contains + * the actual tvlv payload + * @refcount: number of contexts the object is used + */ +struct batadv_tvlv_container { + struct hlist_node list; + struct batadv_tvlv_hdr tvlv_hdr; + atomic_t 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, + uint8_t flags, + void *tvlv_value, uint16_t tvlv_value_len); + int (*unicast_handler)(struct batadv_priv *bat_priv, + uint8_t *src, uint8_t *dst, + void *tvlv_value, uint16_t tvlv_value_len); + uint8_t type; + uint8_t version; + uint8_t flags; + atomic_t 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), +}; + #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |