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![David S. Miller](/assets/img/avatar_default.png)
- bump version strings, by Simon Wunderlich (we forgot to include this patch previously ...) - fix multicast tt/tvlv worker locking, by Linus Lüssing -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAlzUKp4WHHN3QHNpbW9u d3VuZGVybGljaC5kZQAKCRChK+OYQpKeoX1kD/oCq7+iLO1oaewGrD/gnrGJu2Wk FDlVRRBvUOwdJM2zo7o5xLCU1+Pohv0H5uBIXUw4vhcXoqhkqyysLz9lotPrxRG1 KD1Jl8FwOPLkSiLPxj7QurfBU8G0V/A7fYkAt+RTTkk9iSniL8lCc6hE6hj6KimP GaqnkYJyudhOkimYyLb4exUfq4Ls7J95x3LhN+YzXk8PgN3qgrD/dVuSu7dmuyse bfTP1dyWBtQiByEZqNCqrWnj2nBTvCQW9UwuOCg1W1z5coh5GWXTvL61ePu35/Vn 0LxUNNHbbkjVwbVz9T3ExMTHlrV2nEOaZnw4kiuVAbqDNDqG5XkqD1iG2H5wVh74 BPTtk2hd2b8PrvBsyzj2Q+RaTEk0o3jIbP6A/jM+9GpVukT1M0SohcYEFISUeh1f PXMBpAc7qVrP8+VefCkXGFWbKyRg60k2cJQipS/Q9Aef7xOv8DyDbOrnd/a5xPUS zXFRAsKx16gA8SUxNgYz/67jwamVhplHSpgKG2KFtEh0CxJJBY7Z9hlEPM3uZLmT QHUbTS+FTlBNS/Go48pnGd5QTEGNeP5gQkiovtLmIRULRTfbwbI1/4VQCp9/XahT Vj+4RhhULC7i4joqEeKv+GyO36tydsU93yBt66Xo0JI8W9SLfga5zREdrmlGYRZr ECBszSxPpQ8zp3A2Hg== =Dq5n -----END PGP SIGNATURE----- Merge tag 'batadv-net-for-davem-20190509' of git://git.open-mesh.org/linux-merge Simon Wunderlich says: ==================== This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich (we forgot to include this patch previously ...) - fix multicast tt/tvlv worker locking, by Linus Lüssing ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2410 lines
61 KiB
C
2410 lines
61 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) 2007-2019 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich
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*/
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#ifndef _NET_BATMAN_ADV_TYPES_H_
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#define _NET_BATMAN_ADV_TYPES_H_
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#ifndef _NET_BATMAN_ADV_MAIN_H_
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#error only "main.h" can be included directly
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#endif
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#include <linux/average.h>
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#include <linux/bitops.h>
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#include <linux/compiler.h>
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#include <linux/if_ether.h>
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#include <linux/kref.h>
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#include <linux/netdevice.h>
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#include <linux/netlink.h>
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#include <linux/sched.h> /* for linux/wait.h */
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <uapi/linux/batadv_packet.h>
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#include <uapi/linux/batman_adv.h>
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struct seq_file;
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#ifdef CONFIG_BATMAN_ADV_DAT
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/**
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* typedef batadv_dat_addr_t - type used for all DHT addresses
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*
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* If it is changed, BATADV_DAT_ADDR_MAX is changed as well.
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*
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* *Please be careful: batadv_dat_addr_t must be UNSIGNED*
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*/
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typedef u16 batadv_dat_addr_t;
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#endif /* CONFIG_BATMAN_ADV_DAT */
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/**
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* enum batadv_dhcp_recipient - dhcp destination
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*/
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enum batadv_dhcp_recipient {
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/** @BATADV_DHCP_NO: packet is not a dhcp message */
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BATADV_DHCP_NO = 0,
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/** @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server */
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BATADV_DHCP_TO_SERVER,
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/** @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client */
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BATADV_DHCP_TO_CLIENT,
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};
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/**
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* BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the
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* wire only
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*/
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#define BATADV_TT_REMOTE_MASK 0x00FF
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/**
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* BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync
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* among the nodes. These flags are used to compute the global/local CRC
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*/
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#define BATADV_TT_SYNC_MASK 0x00F0
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/**
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* struct batadv_hard_iface_bat_iv - per hard-interface B.A.T.M.A.N. IV data
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*/
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struct batadv_hard_iface_bat_iv {
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/** @ogm_buff: buffer holding the OGM packet */
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unsigned char *ogm_buff;
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/** @ogm_buff_len: length of the OGM packet buffer */
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int ogm_buff_len;
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/** @ogm_seqno: OGM sequence number - used to identify each OGM */
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atomic_t ogm_seqno;
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};
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/**
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* enum batadv_v_hard_iface_flags - interface flags useful to B.A.T.M.A.N. V
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*/
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enum batadv_v_hard_iface_flags {
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/**
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* @BATADV_FULL_DUPLEX: tells if the connection over this link is
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* full-duplex
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*/
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BATADV_FULL_DUPLEX = BIT(0),
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/**
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* @BATADV_WARNING_DEFAULT: tells whether we have warned the user that
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* no throughput data is available for this interface and that default
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* values are assumed.
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*/
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BATADV_WARNING_DEFAULT = BIT(1),
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};
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/**
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* struct batadv_hard_iface_bat_v - per hard-interface B.A.T.M.A.N. V data
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*/
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struct batadv_hard_iface_bat_v {
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/** @elp_interval: time interval between two ELP transmissions */
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atomic_t elp_interval;
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/** @elp_seqno: current ELP sequence number */
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atomic_t elp_seqno;
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/** @elp_skb: base skb containing the ELP message to send */
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struct sk_buff *elp_skb;
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/** @elp_wq: workqueue used to schedule ELP transmissions */
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struct delayed_work elp_wq;
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/**
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* @throughput_override: throughput override to disable link
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* auto-detection
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*/
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atomic_t throughput_override;
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/** @flags: interface specific flags */
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u8 flags;
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};
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/**
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* enum batadv_hard_iface_wifi_flags - Flags describing the wifi configuration
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* of a batadv_hard_iface
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*/
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enum batadv_hard_iface_wifi_flags {
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/** @BATADV_HARDIF_WIFI_WEXT_DIRECT: it is a wext wifi device */
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BATADV_HARDIF_WIFI_WEXT_DIRECT = BIT(0),
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/** @BATADV_HARDIF_WIFI_CFG80211_DIRECT: it is a cfg80211 wifi device */
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BATADV_HARDIF_WIFI_CFG80211_DIRECT = BIT(1),
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/**
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* @BATADV_HARDIF_WIFI_WEXT_INDIRECT: link device is a wext wifi device
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*/
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BATADV_HARDIF_WIFI_WEXT_INDIRECT = BIT(2),
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/**
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* @BATADV_HARDIF_WIFI_CFG80211_INDIRECT: link device is a cfg80211 wifi
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* device
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*/
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BATADV_HARDIF_WIFI_CFG80211_INDIRECT = BIT(3),
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};
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/**
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* struct batadv_hard_iface - network device known to batman-adv
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*/
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struct batadv_hard_iface {
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/** @list: list node for batadv_hardif_list */
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struct list_head list;
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/** @if_status: status of the interface for batman-adv */
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char if_status;
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/**
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* @num_bcasts: number of payload re-broadcasts on this interface (ARQ)
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*/
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u8 num_bcasts;
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/**
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* @wifi_flags: flags whether this is (directly or indirectly) a wifi
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* interface
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*/
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u32 wifi_flags;
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/** @net_dev: pointer to the net_device */
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struct net_device *net_dev;
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/** @hardif_obj: kobject of the per interface sysfs "mesh" directory */
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struct kobject *hardif_obj;
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/** @refcount: number of contexts the object is used */
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struct kref refcount;
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/**
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* @batman_adv_ptype: packet type describing packets that should be
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* processed by batman-adv for this interface
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*/
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struct packet_type batman_adv_ptype;
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/**
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* @soft_iface: the batman-adv interface which uses this network
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* interface
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*/
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struct net_device *soft_iface;
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/** @rcu: struct used for freeing in an RCU-safe manner */
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struct rcu_head rcu;
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/** @bat_iv: per hard-interface B.A.T.M.A.N. IV data */
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struct batadv_hard_iface_bat_iv bat_iv;
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#ifdef CONFIG_BATMAN_ADV_BATMAN_V
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/** @bat_v: per hard-interface B.A.T.M.A.N. V data */
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struct batadv_hard_iface_bat_v bat_v;
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#endif
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#ifdef CONFIG_BATMAN_ADV_DEBUGFS
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/**
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* @debug_dir: dentry for nc subdir in batman-adv directory in debugfs
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*/
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struct dentry *debug_dir;
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#endif
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/**
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* @neigh_list: list of unique single hop neighbors via this interface
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*/
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struct hlist_head neigh_list;
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/** @neigh_list_lock: lock protecting neigh_list */
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spinlock_t neigh_list_lock;
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};
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/**
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* struct batadv_orig_ifinfo - B.A.T.M.A.N. IV private orig_ifinfo members
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*/
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struct batadv_orig_ifinfo_bat_iv {
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/**
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* @bcast_own: bitfield which counts the number of our OGMs this
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* orig_node rebroadcasted "back" to us (relative to last_real_seqno)
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*/
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DECLARE_BITMAP(bcast_own, BATADV_TQ_LOCAL_WINDOW_SIZE);
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/** @bcast_own_sum: sum of bcast_own */
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u8 bcast_own_sum;
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};
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/**
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* struct batadv_orig_ifinfo - originator info per outgoing interface
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*/
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struct batadv_orig_ifinfo {
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/** @list: list node for &batadv_orig_node.ifinfo_list */
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struct hlist_node list;
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/** @if_outgoing: pointer to outgoing hard-interface */
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struct batadv_hard_iface *if_outgoing;
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/** @router: router that should be used to reach this originator */
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struct batadv_neigh_node __rcu *router;
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/** @last_real_seqno: last and best known sequence number */
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u32 last_real_seqno;
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/** @last_ttl: ttl of last received packet */
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u8 last_ttl;
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/** @last_seqno_forwarded: seqno of the OGM which was forwarded last */
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u32 last_seqno_forwarded;
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/** @batman_seqno_reset: time when the batman seqno window was reset */
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unsigned long batman_seqno_reset;
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/** @bat_iv: B.A.T.M.A.N. IV private structure */
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struct batadv_orig_ifinfo_bat_iv bat_iv;
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/** @refcount: number of contexts the object is used */
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struct kref refcount;
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/** @rcu: struct used for freeing in an RCU-safe manner */
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struct rcu_head rcu;
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};
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/**
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* struct batadv_frag_table_entry - head in the fragment buffer table
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*/
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struct batadv_frag_table_entry {
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/** @fragment_list: head of list with fragments */
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struct hlist_head fragment_list;
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/** @lock: lock to protect the list of fragments */
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spinlock_t lock;
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/** @timestamp: time (jiffie) of last received fragment */
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unsigned long timestamp;
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/** @seqno: sequence number of the fragments in the list */
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u16 seqno;
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/** @size: accumulated size of packets in list */
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u16 size;
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/** @total_size: expected size of the assembled packet */
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u16 total_size;
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};
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/**
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* struct batadv_frag_list_entry - entry in a list of fragments
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*/
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struct batadv_frag_list_entry {
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/** @list: list node information */
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struct hlist_node list;
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/** @skb: fragment */
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struct sk_buff *skb;
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/** @no: fragment number in the set */
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u8 no;
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};
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/**
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* struct batadv_vlan_tt - VLAN specific TT attributes
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*/
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struct batadv_vlan_tt {
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/** @crc: CRC32 checksum of the entries belonging to this vlan */
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u32 crc;
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/** @num_entries: number of TT entries for this VLAN */
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atomic_t num_entries;
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};
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/**
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* struct batadv_orig_node_vlan - VLAN specific data per orig_node
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*/
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struct batadv_orig_node_vlan {
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/** @vid: the VLAN identifier */
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unsigned short vid;
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/** @tt: VLAN specific TT attributes */
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struct batadv_vlan_tt tt;
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/** @list: list node for &batadv_orig_node.vlan_list */
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struct hlist_node list;
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/**
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* @refcount: number of context where this object is currently in use
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*/
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struct kref refcount;
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/** @rcu: struct used for freeing in a RCU-safe manner */
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struct rcu_head rcu;
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};
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/**
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* struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members
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*/
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struct batadv_orig_bat_iv {
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/**
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* @ogm_cnt_lock: lock protecting &batadv_orig_ifinfo_bat_iv.bcast_own,
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* &batadv_orig_ifinfo_bat_iv.bcast_own_sum,
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* &batadv_neigh_ifinfo_bat_iv.bat_iv.real_bits and
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* &batadv_neigh_ifinfo_bat_iv.real_packet_count
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*/
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spinlock_t ogm_cnt_lock;
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};
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/**
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* struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
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*/
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struct batadv_orig_node {
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/** @orig: originator ethernet address */
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u8 orig[ETH_ALEN];
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/** @ifinfo_list: list for routers per outgoing interface */
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struct hlist_head ifinfo_list;
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/**
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* @last_bonding_candidate: pointer to last ifinfo of last used router
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*/
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struct batadv_orig_ifinfo *last_bonding_candidate;
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#ifdef CONFIG_BATMAN_ADV_DAT
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/** @dat_addr: address of the orig node in the distributed hash */
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batadv_dat_addr_t dat_addr;
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#endif
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/** @last_seen: time when last packet from this node was received */
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unsigned long last_seen;
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/**
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* @bcast_seqno_reset: time when the broadcast seqno window was reset
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*/
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unsigned long bcast_seqno_reset;
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#ifdef CONFIG_BATMAN_ADV_MCAST
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/**
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* @mcast_handler_lock: synchronizes mcast-capability and -flag changes
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*/
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spinlock_t mcast_handler_lock;
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/** @mcast_flags: multicast flags announced by the orig node */
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u8 mcast_flags;
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/**
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* @mcast_want_all_unsnoopables_node: a list node for the
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* mcast.want_all_unsnoopables list
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*/
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struct hlist_node mcast_want_all_unsnoopables_node;
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/**
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* @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4
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* list
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*/
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struct hlist_node mcast_want_all_ipv4_node;
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/**
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* @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6
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* list
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*/
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struct hlist_node mcast_want_all_ipv6_node;
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#endif
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/** @capabilities: announced capabilities of this originator */
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unsigned long capabilities;
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/**
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* @capa_initialized: bitfield to remember whether a capability was
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* initialized
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*/
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unsigned long capa_initialized;
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/** @last_ttvn: last seen translation table version number */
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atomic_t last_ttvn;
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/** @tt_buff: last tt changeset this node received from the orig node */
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unsigned char *tt_buff;
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/**
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* @tt_buff_len: length of the last tt changeset this node received
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* from the orig node
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*/
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s16 tt_buff_len;
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/** @tt_buff_lock: lock that protects tt_buff and tt_buff_len */
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spinlock_t tt_buff_lock;
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/**
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* @tt_lock: prevents from updating the table while reading it. Table
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* update is made up by two operations (data structure update and
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* metdata -CRC/TTVN-recalculation) and they have to be executed
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* atomically in order to avoid another thread to read the
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* table/metadata between those.
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*/
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spinlock_t tt_lock;
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/**
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* @bcast_bits: bitfield containing the info which payload broadcast
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* originated from this orig node this host already has seen (relative
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* to last_bcast_seqno)
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*/
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DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
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/**
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* @last_bcast_seqno: last broadcast sequence number received by this
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* host
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*/
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u32 last_bcast_seqno;
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/**
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* @neigh_list: list of potential next hop neighbor towards this orig
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* node
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*/
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struct hlist_head neigh_list;
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/**
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* @neigh_list_lock: lock protecting neigh_list, ifinfo_list,
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* last_bonding_candidate and router
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*/
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spinlock_t neigh_list_lock;
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/** @hash_entry: hlist node for &batadv_priv.orig_hash */
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struct hlist_node hash_entry;
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/** @bat_priv: pointer to soft_iface this orig node belongs to */
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struct batadv_priv *bat_priv;
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/** @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno */
|
|
spinlock_t bcast_seqno_lock;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_NC
|
|
/** @in_coding_list: list of nodes this orig can hear */
|
|
struct list_head in_coding_list;
|
|
|
|
/** @out_coding_list: list of nodes that can hear this orig */
|
|
struct list_head out_coding_list;
|
|
|
|
/** @in_coding_list_lock: protects in_coding_list */
|
|
spinlock_t in_coding_list_lock;
|
|
|
|
/** @out_coding_list_lock: protects out_coding_list */
|
|
spinlock_t out_coding_list_lock;
|
|
#endif
|
|
|
|
/** @fragments: array with heads for fragment chains */
|
|
struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
|
|
|
|
/**
|
|
* @vlan_list: a list of orig_node_vlan structs, one per VLAN served by
|
|
* the originator represented by this object
|
|
*/
|
|
struct hlist_head vlan_list;
|
|
|
|
/** @vlan_list_lock: lock protecting vlan_list */
|
|
spinlock_t vlan_list_lock;
|
|
|
|
/** @bat_iv: B.A.T.M.A.N. IV private structure */
|
|
struct batadv_orig_bat_iv bat_iv;
|
|
};
|
|
|
|
/**
|
|
* enum batadv_orig_capabilities - orig node capabilities
|
|
*/
|
|
enum batadv_orig_capabilities {
|
|
/**
|
|
* @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table
|
|
* enabled
|
|
*/
|
|
BATADV_ORIG_CAPA_HAS_DAT,
|
|
|
|
/** @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled */
|
|
BATADV_ORIG_CAPA_HAS_NC,
|
|
|
|
/** @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability */
|
|
BATADV_ORIG_CAPA_HAS_TT,
|
|
|
|
/**
|
|
* @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability
|
|
* (= orig node announces a tvlv of type BATADV_TVLV_MCAST)
|
|
*/
|
|
BATADV_ORIG_CAPA_HAS_MCAST,
|
|
};
|
|
|
|
/**
|
|
* struct batadv_gw_node - structure for orig nodes announcing gw capabilities
|
|
*/
|
|
struct batadv_gw_node {
|
|
/** @list: list node for &batadv_priv_gw.list */
|
|
struct hlist_node list;
|
|
|
|
/** @orig_node: pointer to corresponding orig node */
|
|
struct batadv_orig_node *orig_node;
|
|
|
|
/** @bandwidth_down: advertised uplink download bandwidth */
|
|
u32 bandwidth_down;
|
|
|
|
/** @bandwidth_up: advertised uplink upload bandwidth */
|
|
u32 bandwidth_up;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
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
|
|
*/
|
|
struct batadv_hardif_neigh_node_bat_v {
|
|
/** @throughput: ewma link throughput towards this neighbor */
|
|
struct ewma_throughput throughput;
|
|
|
|
/** @elp_interval: time interval between two ELP transmissions */
|
|
u32 elp_interval;
|
|
|
|
/** @elp_latest_seqno: latest and best known ELP sequence number */
|
|
u32 elp_latest_seqno;
|
|
|
|
/**
|
|
* @last_unicast_tx: when the last unicast packet has been sent to this
|
|
* neighbor
|
|
*/
|
|
unsigned long last_unicast_tx;
|
|
|
|
/** @metric_work: work queue callback item for metric update */
|
|
struct work_struct metric_work;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_hardif_neigh_node - unique neighbor per hard-interface
|
|
*/
|
|
struct batadv_hardif_neigh_node {
|
|
/** @list: list node for &batadv_hard_iface.neigh_list */
|
|
struct hlist_node list;
|
|
|
|
/** @addr: the MAC address of the neighboring interface */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/**
|
|
* @orig: the address of the originator this neighbor node belongs to
|
|
*/
|
|
u8 orig[ETH_ALEN];
|
|
|
|
/** @if_incoming: pointer to incoming hard-interface */
|
|
struct batadv_hard_iface *if_incoming;
|
|
|
|
/** @last_seen: when last packet via this neighbor was received */
|
|
unsigned long last_seen;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
|
|
/** @bat_v: B.A.T.M.A.N. V private data */
|
|
struct batadv_hardif_neigh_node_bat_v bat_v;
|
|
#endif
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in a RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_neigh_node - structure for single hops neighbors
|
|
*/
|
|
struct batadv_neigh_node {
|
|
/** @list: list node for &batadv_orig_node.neigh_list */
|
|
struct hlist_node list;
|
|
|
|
/** @orig_node: pointer to corresponding orig_node */
|
|
struct batadv_orig_node *orig_node;
|
|
|
|
/** @addr: the MAC address of the neighboring interface */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/** @ifinfo_list: list for routing metrics per outgoing interface */
|
|
struct hlist_head ifinfo_list;
|
|
|
|
/** @ifinfo_lock: lock protecting ifinfo_list and its members */
|
|
spinlock_t ifinfo_lock;
|
|
|
|
/** @if_incoming: pointer to incoming hard-interface */
|
|
struct batadv_hard_iface *if_incoming;
|
|
|
|
/** @last_seen: when last packet via this neighbor was received */
|
|
unsigned long last_seen;
|
|
|
|
/** @hardif_neigh: hardif_neigh of this neighbor */
|
|
struct batadv_hardif_neigh_node *hardif_neigh;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing
|
|
* interface for B.A.T.M.A.N. IV
|
|
*/
|
|
struct batadv_neigh_ifinfo_bat_iv {
|
|
/** @tq_recv: ring buffer of received TQ values from this neigh node */
|
|
u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
|
|
|
|
/** @tq_index: ring buffer index */
|
|
u8 tq_index;
|
|
|
|
/**
|
|
* @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv)
|
|
*/
|
|
u8 tq_avg;
|
|
|
|
/**
|
|
* @real_bits: bitfield containing the number of OGMs received from this
|
|
* neigh node (relative to orig_node->last_real_seqno)
|
|
*/
|
|
DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
|
|
|
|
/** @real_packet_count: counted result of real_bits */
|
|
u8 real_packet_count;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_neigh_ifinfo_bat_v - neighbor information per outgoing
|
|
* interface for B.A.T.M.A.N. V
|
|
*/
|
|
struct batadv_neigh_ifinfo_bat_v {
|
|
/**
|
|
* @throughput: last throughput metric received from originator via this
|
|
* neigh
|
|
*/
|
|
u32 throughput;
|
|
|
|
/** @last_seqno: last sequence number known for this neighbor */
|
|
u32 last_seqno;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_neigh_ifinfo - neighbor information per outgoing interface
|
|
*/
|
|
struct batadv_neigh_ifinfo {
|
|
/** @list: list node for &batadv_neigh_node.ifinfo_list */
|
|
struct hlist_node list;
|
|
|
|
/** @if_outgoing: pointer to outgoing hard-interface */
|
|
struct batadv_hard_iface *if_outgoing;
|
|
|
|
/** @bat_iv: B.A.T.M.A.N. IV private structure */
|
|
struct batadv_neigh_ifinfo_bat_iv bat_iv;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
|
|
/** @bat_v: B.A.T.M.A.N. V private data */
|
|
struct batadv_neigh_ifinfo_bat_v bat_v;
|
|
#endif
|
|
|
|
/** @last_ttl: last received ttl from this neigh node */
|
|
u8 last_ttl;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in a RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
|
|
|
/**
|
|
* struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression
|
|
*/
|
|
struct batadv_bcast_duplist_entry {
|
|
/** @orig: mac address of orig node orginating the broadcast */
|
|
u8 orig[ETH_ALEN];
|
|
|
|
/** @crc: crc32 checksum of broadcast payload */
|
|
__be32 crc;
|
|
|
|
/** @entrytime: time when the broadcast packet was received */
|
|
unsigned long entrytime;
|
|
};
|
|
#endif
|
|
|
|
/**
|
|
* enum batadv_counters - indices for traffic counters
|
|
*/
|
|
enum batadv_counters {
|
|
/** @BATADV_CNT_TX: transmitted payload traffic packet counter */
|
|
BATADV_CNT_TX,
|
|
|
|
/** @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter */
|
|
BATADV_CNT_TX_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet
|
|
* counter
|
|
*/
|
|
BATADV_CNT_TX_DROPPED,
|
|
|
|
/** @BATADV_CNT_RX: received payload traffic packet counter */
|
|
BATADV_CNT_RX,
|
|
|
|
/** @BATADV_CNT_RX_BYTES: received payload traffic bytes counter */
|
|
BATADV_CNT_RX_BYTES,
|
|
|
|
/** @BATADV_CNT_FORWARD: forwarded payload traffic packet counter */
|
|
BATADV_CNT_FORWARD,
|
|
|
|
/**
|
|
* @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter
|
|
*/
|
|
BATADV_CNT_FORWARD_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet
|
|
* counter
|
|
*/
|
|
BATADV_CNT_MGMT_TX,
|
|
|
|
/**
|
|
* @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes
|
|
* counter
|
|
*/
|
|
BATADV_CNT_MGMT_TX_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
|
|
*/
|
|
BATADV_CNT_MGMT_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes
|
|
* counter
|
|
*/
|
|
BATADV_CNT_MGMT_RX_BYTES,
|
|
|
|
/** @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter */
|
|
BATADV_CNT_FRAG_TX,
|
|
|
|
/**
|
|
* @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter
|
|
*/
|
|
BATADV_CNT_FRAG_TX_BYTES,
|
|
|
|
/** @BATADV_CNT_FRAG_RX: received fragment traffic packet counter */
|
|
BATADV_CNT_FRAG_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter
|
|
*/
|
|
BATADV_CNT_FRAG_RX_BYTES,
|
|
|
|
/** @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter */
|
|
BATADV_CNT_FRAG_FWD,
|
|
|
|
/**
|
|
* @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter
|
|
*/
|
|
BATADV_CNT_FRAG_FWD_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter
|
|
*/
|
|
BATADV_CNT_TT_REQUEST_TX,
|
|
|
|
/** @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter */
|
|
BATADV_CNT_TT_REQUEST_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet
|
|
* counter
|
|
*/
|
|
BATADV_CNT_TT_RESPONSE_TX,
|
|
|
|
/**
|
|
* @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter
|
|
*/
|
|
BATADV_CNT_TT_RESPONSE_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet
|
|
* counter
|
|
*/
|
|
BATADV_CNT_TT_ROAM_ADV_TX,
|
|
|
|
/**
|
|
* @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter
|
|
*/
|
|
BATADV_CNT_TT_ROAM_ADV_RX,
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DAT
|
|
/**
|
|
* @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
|
|
*/
|
|
BATADV_CNT_DAT_GET_TX,
|
|
|
|
/** @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter */
|
|
BATADV_CNT_DAT_GET_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter
|
|
*/
|
|
BATADV_CNT_DAT_PUT_TX,
|
|
|
|
/** @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter */
|
|
BATADV_CNT_DAT_PUT_RX,
|
|
|
|
/**
|
|
* @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic
|
|
* packet counter
|
|
*/
|
|
BATADV_CNT_DAT_CACHED_REPLY_TX,
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_NC
|
|
/**
|
|
* @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter
|
|
*/
|
|
BATADV_CNT_NC_CODE,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes
|
|
* counter
|
|
*/
|
|
BATADV_CNT_NC_CODE_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet
|
|
* counter
|
|
*/
|
|
BATADV_CNT_NC_RECODE,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes
|
|
* counter
|
|
*/
|
|
BATADV_CNT_NC_RECODE_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc
|
|
* decoding
|
|
*/
|
|
BATADV_CNT_NC_BUFFER,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter
|
|
*/
|
|
BATADV_CNT_NC_DECODE,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes
|
|
* counter
|
|
*/
|
|
BATADV_CNT_NC_DECODE_BYTES,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic
|
|
* packet counter
|
|
*/
|
|
BATADV_CNT_NC_DECODE_FAILED,
|
|
|
|
/**
|
|
* @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in
|
|
* promisc mode.
|
|
*/
|
|
BATADV_CNT_NC_SNIFFED,
|
|
#endif
|
|
|
|
/** @BATADV_CNT_NUM: number of traffic counters */
|
|
BATADV_CNT_NUM,
|
|
};
|
|
|
|
/**
|
|
* struct batadv_priv_tt - per mesh interface translation table data
|
|
*/
|
|
struct batadv_priv_tt {
|
|
/** @vn: translation table version number */
|
|
atomic_t vn;
|
|
|
|
/**
|
|
* @ogm_append_cnt: counter of number of OGMs containing the local tt
|
|
* diff
|
|
*/
|
|
atomic_t ogm_append_cnt;
|
|
|
|
/** @local_changes: changes registered in an originator interval */
|
|
atomic_t local_changes;
|
|
|
|
/**
|
|
* @changes_list: tracks tt local changes within an originator interval
|
|
*/
|
|
struct list_head changes_list;
|
|
|
|
/** @local_hash: local translation table hash table */
|
|
struct batadv_hashtable *local_hash;
|
|
|
|
/** @global_hash: global translation table hash table */
|
|
struct batadv_hashtable *global_hash;
|
|
|
|
/** @req_list: list of pending & unanswered tt_requests */
|
|
struct hlist_head req_list;
|
|
|
|
/**
|
|
* @roam_list: list of the last roaming events of each client limiting
|
|
* the number of roaming events to avoid route flapping
|
|
*/
|
|
struct list_head roam_list;
|
|
|
|
/** @changes_list_lock: lock protecting changes_list */
|
|
spinlock_t changes_list_lock;
|
|
|
|
/** @req_list_lock: lock protecting req_list */
|
|
spinlock_t req_list_lock;
|
|
|
|
/** @roam_list_lock: lock protecting roam_list */
|
|
spinlock_t roam_list_lock;
|
|
|
|
/** @last_changeset: last tt changeset this host has generated */
|
|
unsigned char *last_changeset;
|
|
|
|
/**
|
|
* @last_changeset_len: length of last tt changeset this host has
|
|
* generated
|
|
*/
|
|
s16 last_changeset_len;
|
|
|
|
/**
|
|
* @last_changeset_lock: lock protecting last_changeset &
|
|
* last_changeset_len
|
|
*/
|
|
spinlock_t last_changeset_lock;
|
|
|
|
/**
|
|
* @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.
|
|
*/
|
|
spinlock_t commit_lock;
|
|
|
|
/** @work: work queue callback item for translation table purging */
|
|
struct delayed_work work;
|
|
};
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
|
|
|
/**
|
|
* struct batadv_priv_bla - per mesh interface bridge loope avoidance data
|
|
*/
|
|
struct batadv_priv_bla {
|
|
/** @num_requests: number of bla requests in flight */
|
|
atomic_t num_requests;
|
|
|
|
/**
|
|
* @claim_hash: hash table containing mesh nodes this host has claimed
|
|
*/
|
|
struct batadv_hashtable *claim_hash;
|
|
|
|
/**
|
|
* @backbone_hash: hash table containing all detected backbone gateways
|
|
*/
|
|
struct batadv_hashtable *backbone_hash;
|
|
|
|
/** @loopdetect_addr: MAC address used for own loopdetection frames */
|
|
u8 loopdetect_addr[ETH_ALEN];
|
|
|
|
/**
|
|
* @loopdetect_lasttime: time when the loopdetection frames were sent
|
|
*/
|
|
unsigned long loopdetect_lasttime;
|
|
|
|
/**
|
|
* @loopdetect_next: how many periods to wait for the next loopdetect
|
|
* process
|
|
*/
|
|
atomic_t loopdetect_next;
|
|
|
|
/**
|
|
* @bcast_duplist: recently received broadcast packets array (for
|
|
* broadcast duplicate suppression)
|
|
*/
|
|
struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE];
|
|
|
|
/**
|
|
* @bcast_duplist_curr: index of last broadcast packet added to
|
|
* bcast_duplist
|
|
*/
|
|
int bcast_duplist_curr;
|
|
|
|
/**
|
|
* @bcast_duplist_lock: lock protecting bcast_duplist &
|
|
* bcast_duplist_curr
|
|
*/
|
|
spinlock_t bcast_duplist_lock;
|
|
|
|
/** @claim_dest: local claim data (e.g. claim group) */
|
|
struct batadv_bla_claim_dst claim_dest;
|
|
|
|
/** @work: work queue callback item for cleanups & bla announcements */
|
|
struct delayed_work work;
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUG
|
|
|
|
/**
|
|
* struct batadv_priv_debug_log - debug logging data
|
|
*/
|
|
struct batadv_priv_debug_log {
|
|
/** @log_buff: buffer holding the logs (ring bufer) */
|
|
char log_buff[BATADV_LOG_BUF_LEN];
|
|
|
|
/** @log_start: index of next character to read */
|
|
unsigned long log_start;
|
|
|
|
/** @log_end: index of next character to write */
|
|
unsigned long log_end;
|
|
|
|
/** @lock: lock protecting log_buff, log_start & log_end */
|
|
spinlock_t lock;
|
|
|
|
/** @queue_wait: log reader's wait queue */
|
|
wait_queue_head_t queue_wait;
|
|
};
|
|
#endif
|
|
|
|
/**
|
|
* struct batadv_priv_gw - per mesh interface gateway data
|
|
*/
|
|
struct batadv_priv_gw {
|
|
/** @gateway_list: list of available gateway nodes */
|
|
struct hlist_head gateway_list;
|
|
|
|
/** @list_lock: lock protecting gateway_list, curr_gw, generation */
|
|
spinlock_t list_lock;
|
|
|
|
/** @curr_gw: pointer to currently selected gateway node */
|
|
struct batadv_gw_node __rcu *curr_gw;
|
|
|
|
/** @generation: current (generation) sequence number */
|
|
unsigned int generation;
|
|
|
|
/**
|
|
* @mode: gateway operation: off, client or server (see batadv_gw_modes)
|
|
*/
|
|
atomic_t mode;
|
|
|
|
/** @sel_class: gateway selection class (applies if gw_mode client) */
|
|
atomic_t sel_class;
|
|
|
|
/**
|
|
* @bandwidth_down: advertised uplink download bandwidth (if gw_mode
|
|
* server)
|
|
*/
|
|
atomic_t bandwidth_down;
|
|
|
|
/**
|
|
* @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server)
|
|
*/
|
|
atomic_t bandwidth_up;
|
|
|
|
/** @reselect: bool indicating a gateway re-selection is in progress */
|
|
atomic_t reselect;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_priv_tvlv - per mesh interface tvlv data
|
|
*/
|
|
struct batadv_priv_tvlv {
|
|
/**
|
|
* @container_list: list of registered tvlv containers to be sent with
|
|
* each OGM
|
|
*/
|
|
struct hlist_head container_list;
|
|
|
|
/** @handler_list: list of the various tvlv content handlers */
|
|
struct hlist_head handler_list;
|
|
|
|
/** @container_list_lock: protects tvlv container list access */
|
|
spinlock_t container_list_lock;
|
|
|
|
/** @handler_list_lock: protects handler list access */
|
|
spinlock_t handler_list_lock;
|
|
};
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DAT
|
|
|
|
/**
|
|
* struct batadv_priv_dat - per mesh interface DAT private data
|
|
*/
|
|
struct batadv_priv_dat {
|
|
/** @addr: node DAT address */
|
|
batadv_dat_addr_t addr;
|
|
|
|
/** @hash: hashtable representing the local ARP cache */
|
|
struct batadv_hashtable *hash;
|
|
|
|
/** @work: work queue callback item for cache purging */
|
|
struct delayed_work work;
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_MCAST
|
|
/**
|
|
* struct batadv_mcast_querier_state - IGMP/MLD querier state when bridged
|
|
*/
|
|
struct batadv_mcast_querier_state {
|
|
/** @exists: whether a querier exists in the mesh */
|
|
unsigned char exists:1;
|
|
|
|
/**
|
|
* @shadowing: if a querier exists, whether it is potentially shadowing
|
|
* multicast listeners (i.e. querier is behind our own bridge segment)
|
|
*/
|
|
unsigned char shadowing:1;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_priv_mcast - per mesh interface mcast data
|
|
*/
|
|
struct batadv_priv_mcast {
|
|
/**
|
|
* @mla_list: list of multicast addresses we are currently announcing
|
|
* via TT
|
|
*/
|
|
struct hlist_head mla_list; /* see __batadv_mcast_mla_update() */
|
|
|
|
/**
|
|
* @want_all_unsnoopables_list: a list of orig_nodes wanting all
|
|
* unsnoopable multicast traffic
|
|
*/
|
|
struct hlist_head want_all_unsnoopables_list;
|
|
|
|
/**
|
|
* @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast
|
|
* traffic
|
|
*/
|
|
struct hlist_head want_all_ipv4_list;
|
|
|
|
/**
|
|
* @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast
|
|
* traffic
|
|
*/
|
|
struct hlist_head want_all_ipv6_list;
|
|
|
|
/** @querier_ipv4: the current state of an IGMP querier in the mesh */
|
|
struct batadv_mcast_querier_state querier_ipv4;
|
|
|
|
/** @querier_ipv6: the current state of an MLD querier in the mesh */
|
|
struct batadv_mcast_querier_state querier_ipv6;
|
|
|
|
/** @flags: the flags we have last sent in our mcast tvlv */
|
|
u8 flags;
|
|
|
|
/** @enabled: whether the multicast tvlv is currently enabled */
|
|
unsigned char enabled:1;
|
|
|
|
/** @bridged: whether the soft interface has a bridge on top */
|
|
unsigned char bridged:1;
|
|
|
|
/**
|
|
* @mla_lock: a lock protecting mla_list and mla_flags
|
|
*/
|
|
spinlock_t mla_lock;
|
|
|
|
/**
|
|
* @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP
|
|
* traffic
|
|
*/
|
|
atomic_t num_want_all_unsnoopables;
|
|
|
|
/** @num_want_all_ipv4: counter for items in want_all_ipv4_list */
|
|
atomic_t num_want_all_ipv4;
|
|
|
|
/** @num_want_all_ipv6: counter for items in want_all_ipv6_list */
|
|
atomic_t num_want_all_ipv6;
|
|
|
|
/**
|
|
* @want_lists_lock: lock for protecting modifications to mcasts
|
|
* want_all_{unsnoopables,ipv4,ipv6}_list (traversals are rcu-locked)
|
|
*/
|
|
spinlock_t want_lists_lock;
|
|
|
|
/** @work: work queue callback item for multicast TT and TVLV updates */
|
|
struct delayed_work work;
|
|
};
|
|
#endif
|
|
|
|
/**
|
|
* struct batadv_priv_nc - per mesh interface network coding private data
|
|
*/
|
|
struct batadv_priv_nc {
|
|
/** @work: work queue callback item for cleanup */
|
|
struct delayed_work work;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
|
|
/**
|
|
* @debug_dir: dentry for nc subdir in batman-adv directory in debugfs
|
|
*/
|
|
struct dentry *debug_dir;
|
|
#endif
|
|
|
|
/**
|
|
* @min_tq: only consider neighbors for encoding if neigh_tq > min_tq
|
|
*/
|
|
u8 min_tq;
|
|
|
|
/**
|
|
* @max_fwd_delay: maximum packet forward delay to allow coding of
|
|
* packets
|
|
*/
|
|
u32 max_fwd_delay;
|
|
|
|
/**
|
|
* @max_buffer_time: buffer time for sniffed packets used to decoding
|
|
*/
|
|
u32 max_buffer_time;
|
|
|
|
/**
|
|
* @timestamp_fwd_flush: timestamp of last forward packet queue flush
|
|
*/
|
|
unsigned long timestamp_fwd_flush;
|
|
|
|
/**
|
|
* @timestamp_sniffed_purge: timestamp of last sniffed packet queue
|
|
* purge
|
|
*/
|
|
unsigned long timestamp_sniffed_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
|
|
*/
|
|
struct batadv_hashtable *coding_hash;
|
|
|
|
/**
|
|
* @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_hashtable *decoding_hash;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tp_unacked - unacked packet meta-information
|
|
*
|
|
* 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 {
|
|
/** @seqno: seqno of the unacked packet */
|
|
u32 seqno;
|
|
|
|
/** @len: length of the packet */
|
|
u16 len;
|
|
|
|
/** @list: list node for &batadv_tp_vars.unacked_list */
|
|
struct list_head list;
|
|
};
|
|
|
|
/**
|
|
* enum batadv_tp_meter_role - Modus in tp meter session
|
|
*/
|
|
enum batadv_tp_meter_role {
|
|
/** @BATADV_TP_RECEIVER: Initialized as receiver */
|
|
BATADV_TP_RECEIVER,
|
|
|
|
/** @BATADV_TP_SENDER: Initialized as sender */
|
|
BATADV_TP_SENDER
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tp_vars - tp meter private variables per session
|
|
*/
|
|
struct batadv_tp_vars {
|
|
/** @list: list node for &bat_priv.tp_list */
|
|
struct hlist_node list;
|
|
|
|
/** @timer: timer for ack (receiver) and retry (sender) */
|
|
struct timer_list timer;
|
|
|
|
/** @bat_priv: pointer to the mesh object */
|
|
struct batadv_priv *bat_priv;
|
|
|
|
/** @start_time: start time in jiffies */
|
|
unsigned long start_time;
|
|
|
|
/** @other_end: mac address of remote */
|
|
u8 other_end[ETH_ALEN];
|
|
|
|
/** @role: receiver/sender modi */
|
|
enum batadv_tp_meter_role role;
|
|
|
|
/** @sending: sending binary semaphore: 1 if sending, 0 is not */
|
|
atomic_t sending;
|
|
|
|
/** @reason: reason for a stopped session */
|
|
enum batadv_tp_meter_reason reason;
|
|
|
|
/** @finish_work: work item for the finishing procedure */
|
|
struct delayed_work finish_work;
|
|
|
|
/** @test_length: test length in milliseconds */
|
|
u32 test_length;
|
|
|
|
/** @session: TP session identifier */
|
|
u8 session[2];
|
|
|
|
/** @icmp_uid: local ICMP "socket" index */
|
|
u8 icmp_uid;
|
|
|
|
/* sender variables */
|
|
|
|
/** @dec_cwnd: decimal part of the cwnd used during linear growth */
|
|
u16 dec_cwnd;
|
|
|
|
/** @cwnd: current size of the congestion window */
|
|
u32 cwnd;
|
|
|
|
/** @cwnd_lock: lock do protect @cwnd & @dec_cwnd */
|
|
spinlock_t cwnd_lock;
|
|
|
|
/**
|
|
* @ss_threshold: Slow Start threshold. Once cwnd exceeds this value the
|
|
* connection switches to the Congestion Avoidance state
|
|
*/
|
|
u32 ss_threshold;
|
|
|
|
/** @last_acked: last acked byte */
|
|
atomic_t last_acked;
|
|
|
|
/** @last_sent: last sent byte, not yet acked */
|
|
u32 last_sent;
|
|
|
|
/** @tot_sent: amount of data sent/ACKed so far */
|
|
atomic64_t tot_sent;
|
|
|
|
/** @dup_acks: duplicate ACKs counter */
|
|
atomic_t dup_acks;
|
|
|
|
/** @fast_recovery: true if in Fast Recovery mode */
|
|
unsigned char fast_recovery:1;
|
|
|
|
/** @recover: last sent seqno when entering Fast Recovery */
|
|
u32 recover;
|
|
|
|
/** @rto: sender timeout */
|
|
u32 rto;
|
|
|
|
/** @srtt: smoothed RTT scaled by 2^3 */
|
|
u32 srtt;
|
|
|
|
/** @rttvar: RTT variation scaled by 2^2 */
|
|
u32 rttvar;
|
|
|
|
/**
|
|
* @more_bytes: waiting queue anchor when waiting for more ack/retry
|
|
* timeout
|
|
*/
|
|
wait_queue_head_t more_bytes;
|
|
|
|
/** @prerandom_offset: offset inside the prerandom buffer */
|
|
u32 prerandom_offset;
|
|
|
|
/** @prerandom_lock: spinlock protecting access to prerandom_offset */
|
|
spinlock_t prerandom_lock;
|
|
|
|
/* receiver variables */
|
|
|
|
/** @last_recv: last in-order received packet */
|
|
u32 last_recv;
|
|
|
|
/** @unacked_list: list of unacked packets (meta-info only) */
|
|
struct list_head unacked_list;
|
|
|
|
/** @unacked_lock: protect unacked_list */
|
|
spinlock_t unacked_lock;
|
|
|
|
/** @last_recv_time: time time (jiffies) a msg was received */
|
|
unsigned long last_recv_time;
|
|
|
|
/** @refcount: number of context where the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_softif_vlan - per VLAN attributes set
|
|
*/
|
|
struct batadv_softif_vlan {
|
|
/** @bat_priv: pointer to the mesh object */
|
|
struct batadv_priv *bat_priv;
|
|
|
|
/** @vid: VLAN identifier */
|
|
unsigned short vid;
|
|
|
|
/** @kobj: kobject for sysfs vlan subdirectory */
|
|
struct kobject *kobj;
|
|
|
|
/** @ap_isolation: AP isolation state */
|
|
atomic_t ap_isolation; /* boolean */
|
|
|
|
/** @tt: TT private attributes (VLAN specific) */
|
|
struct batadv_vlan_tt tt;
|
|
|
|
/** @list: list node for &bat_priv.softif_vlan_list */
|
|
struct hlist_node list;
|
|
|
|
/**
|
|
* @refcount: number of context where this object is currently in use
|
|
*/
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in a RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data
|
|
*/
|
|
struct batadv_priv_bat_v {
|
|
/** @ogm_buff: buffer holding the OGM packet */
|
|
unsigned char *ogm_buff;
|
|
|
|
/** @ogm_buff_len: length of the OGM packet buffer */
|
|
int ogm_buff_len;
|
|
|
|
/** @ogm_seqno: OGM sequence number - used to identify each OGM */
|
|
atomic_t ogm_seqno;
|
|
|
|
/** @ogm_wq: workqueue used to schedule OGM transmissions */
|
|
struct delayed_work ogm_wq;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_priv - per mesh interface data
|
|
*/
|
|
struct batadv_priv {
|
|
/**
|
|
* @mesh_state: current status of the mesh
|
|
* (inactive/active/deactivating)
|
|
*/
|
|
atomic_t mesh_state;
|
|
|
|
/** @soft_iface: net device which holds this struct as private data */
|
|
struct net_device *soft_iface;
|
|
|
|
/**
|
|
* @bat_counters: mesh internal traffic statistic counters (see
|
|
* batadv_counters)
|
|
*/
|
|
u64 __percpu *bat_counters; /* Per cpu counters */
|
|
|
|
/**
|
|
* @aggregated_ogms: bool indicating whether OGM aggregation is enabled
|
|
*/
|
|
atomic_t aggregated_ogms;
|
|
|
|
/** @bonding: bool indicating whether traffic bonding is enabled */
|
|
atomic_t bonding;
|
|
|
|
/**
|
|
* @fragmentation: bool indicating whether traffic fragmentation is
|
|
* enabled
|
|
*/
|
|
atomic_t fragmentation;
|
|
|
|
/**
|
|
* @packet_size_max: max packet size that can be transmitted via
|
|
* multiple fragmented skbs or a single frame if fragmentation is
|
|
* disabled
|
|
*/
|
|
atomic_t packet_size_max;
|
|
|
|
/**
|
|
* @frag_seqno: incremental counter to identify chains of egress
|
|
* fragments
|
|
*/
|
|
atomic_t frag_seqno;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
|
/**
|
|
* @bridge_loop_avoidance: bool indicating whether bridge loop
|
|
* avoidance is enabled
|
|
*/
|
|
atomic_t bridge_loop_avoidance;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DAT
|
|
/**
|
|
* @distributed_arp_table: bool indicating whether distributed ARP table
|
|
* is enabled
|
|
*/
|
|
atomic_t distributed_arp_table;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_MCAST
|
|
/**
|
|
* @multicast_mode: Enable or disable multicast optimizations on this
|
|
* node's sender/originating side
|
|
*/
|
|
atomic_t multicast_mode;
|
|
|
|
/**
|
|
* @multicast_fanout: Maximum number of packet copies to generate for a
|
|
* multicast-to-unicast conversion
|
|
*/
|
|
atomic_t multicast_fanout;
|
|
#endif
|
|
|
|
/** @orig_interval: OGM broadcast interval in milliseconds */
|
|
atomic_t orig_interval;
|
|
|
|
/**
|
|
* @hop_penalty: penalty which will be applied to an OGM's tq-field on
|
|
* every hop
|
|
*/
|
|
atomic_t hop_penalty;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUG
|
|
/** @log_level: configured log level (see batadv_dbg_level) */
|
|
atomic_t log_level;
|
|
#endif
|
|
|
|
/**
|
|
* @isolation_mark: the skb->mark value used to match packets for AP
|
|
* isolation
|
|
*/
|
|
u32 isolation_mark;
|
|
|
|
/**
|
|
* @isolation_mark_mask: bitmask identifying the bits in skb->mark to be
|
|
* used for the isolation mark
|
|
*/
|
|
u32 isolation_mark_mask;
|
|
|
|
/** @bcast_seqno: last sent broadcast packet sequence number */
|
|
atomic_t bcast_seqno;
|
|
|
|
/**
|
|
* @bcast_queue_left: number of remaining buffered broadcast packet
|
|
* slots
|
|
*/
|
|
atomic_t bcast_queue_left;
|
|
|
|
/** @batman_queue_left: number of remaining OGM packet slots */
|
|
atomic_t batman_queue_left;
|
|
|
|
/** @mesh_obj: kobject for sysfs mesh subdirectory */
|
|
struct kobject *mesh_obj;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
|
|
/** @debug_dir: dentry for debugfs batman-adv subdirectory */
|
|
struct dentry *debug_dir;
|
|
#endif
|
|
|
|
/** @forw_bat_list: list of aggregated OGMs that will be forwarded */
|
|
struct hlist_head forw_bat_list;
|
|
|
|
/**
|
|
* @forw_bcast_list: list of broadcast packets that will be
|
|
* rebroadcasted
|
|
*/
|
|
struct hlist_head forw_bcast_list;
|
|
|
|
/** @tp_list: list of tp sessions */
|
|
struct hlist_head tp_list;
|
|
|
|
/** @tp_num: number of currently active tp sessions */
|
|
struct batadv_hashtable *orig_hash;
|
|
|
|
/** @orig_hash: hash table containing mesh participants (orig nodes) */
|
|
spinlock_t forw_bat_list_lock;
|
|
|
|
/** @forw_bat_list_lock: lock protecting forw_bat_list */
|
|
spinlock_t forw_bcast_list_lock;
|
|
|
|
/** @forw_bcast_list_lock: lock protecting forw_bcast_list */
|
|
spinlock_t tp_list_lock;
|
|
|
|
/** @tp_list_lock: spinlock protecting @tp_list */
|
|
atomic_t tp_num;
|
|
|
|
/** @orig_work: work queue callback item for orig node purging */
|
|
struct delayed_work orig_work;
|
|
|
|
/**
|
|
* @primary_if: one of the hard-interfaces assigned to this mesh
|
|
* interface becomes the primary interface
|
|
*/
|
|
struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */
|
|
|
|
/** @algo_ops: routing algorithm used by this mesh interface */
|
|
struct batadv_algo_ops *algo_ops;
|
|
|
|
/**
|
|
* @softif_vlan_list: a list of softif_vlan structs, one per VLAN
|
|
* created on top of the mesh interface represented by this object
|
|
*/
|
|
struct hlist_head softif_vlan_list;
|
|
|
|
/** @softif_vlan_list_lock: lock protecting softif_vlan_list */
|
|
spinlock_t softif_vlan_list_lock;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
|
/** @bla: bridge loope avoidance data */
|
|
struct batadv_priv_bla bla;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUG
|
|
/** @debug_log: holding debug logging relevant data */
|
|
struct batadv_priv_debug_log *debug_log;
|
|
#endif
|
|
|
|
/** @gw: gateway data */
|
|
struct batadv_priv_gw gw;
|
|
|
|
/** @tt: translation table data */
|
|
struct batadv_priv_tt tt;
|
|
|
|
/** @tvlv: type-version-length-value data */
|
|
struct batadv_priv_tvlv tvlv;
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DAT
|
|
/** @dat: distributed arp table data */
|
|
struct batadv_priv_dat dat;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_MCAST
|
|
/** @mcast: multicast data */
|
|
struct batadv_priv_mcast mcast;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_NC
|
|
/**
|
|
* @network_coding: bool indicating whether network coding is enabled
|
|
*/
|
|
atomic_t network_coding;
|
|
|
|
/** @nc: network coding data */
|
|
struct batadv_priv_nc nc;
|
|
#endif /* CONFIG_BATMAN_ADV_NC */
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
|
|
/** @bat_v: B.A.T.M.A.N. V per soft-interface private data */
|
|
struct batadv_priv_bat_v bat_v;
|
|
#endif
|
|
};
|
|
|
|
/**
|
|
* struct batadv_socket_client - layer2 icmp socket client data
|
|
*/
|
|
struct batadv_socket_client {
|
|
/**
|
|
* @queue_list: packet queue for packets destined for this socket client
|
|
*/
|
|
struct list_head queue_list;
|
|
|
|
/** @queue_len: number of packets in the packet queue (queue_list) */
|
|
unsigned int queue_len;
|
|
|
|
/** @index: socket client's index in the batadv_socket_client_hash */
|
|
unsigned char index;
|
|
|
|
/** @lock: lock protecting queue_list, queue_len & index */
|
|
spinlock_t lock;
|
|
|
|
/** @queue_wait: socket client's wait queue */
|
|
wait_queue_head_t queue_wait;
|
|
|
|
/** @bat_priv: pointer to soft_iface this client belongs to */
|
|
struct batadv_priv *bat_priv;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_socket_packet - layer2 icmp packet for socket client
|
|
*/
|
|
struct batadv_socket_packet {
|
|
/** @list: list node for &batadv_socket_client.queue_list */
|
|
struct list_head list;
|
|
|
|
/** @icmp_len: size of the layer2 icmp packet */
|
|
size_t icmp_len;
|
|
|
|
/** @icmp_packet: layer2 icmp packet */
|
|
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
|
|
*/
|
|
struct batadv_bla_backbone_gw {
|
|
/**
|
|
* @orig: originator address of backbone node (mac address of primary
|
|
* iface)
|
|
*/
|
|
u8 orig[ETH_ALEN];
|
|
|
|
/** @vid: vlan id this gateway was detected on */
|
|
unsigned short vid;
|
|
|
|
/** @hash_entry: hlist node for &batadv_priv_bla.backbone_hash */
|
|
struct hlist_node hash_entry;
|
|
|
|
/** @bat_priv: pointer to soft_iface this backbone gateway belongs to */
|
|
struct batadv_priv *bat_priv;
|
|
|
|
/** @lasttime: last time we heard of this backbone gw */
|
|
unsigned long lasttime;
|
|
|
|
/**
|
|
* @wait_periods: grace time for bridge forward delays and bla group
|
|
* forming at bootup phase - no bcast traffic is formwared until it has
|
|
* elapsed
|
|
*/
|
|
atomic_t wait_periods;
|
|
|
|
/**
|
|
* @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
|
|
*/
|
|
atomic_t request_sent;
|
|
|
|
/** @crc: crc16 checksum over all claims */
|
|
u16 crc;
|
|
|
|
/** @crc_lock: lock protecting crc */
|
|
spinlock_t crc_lock;
|
|
|
|
/** @report_work: work struct for reporting detected loops */
|
|
struct work_struct report_work;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_bla_claim - claimed non-mesh client structure
|
|
*/
|
|
struct batadv_bla_claim {
|
|
/** @addr: mac address of claimed non-mesh client */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/** @vid: vlan id this client was detected on */
|
|
unsigned short vid;
|
|
|
|
/** @backbone_gw: pointer to backbone gw claiming this client */
|
|
struct batadv_bla_backbone_gw *backbone_gw;
|
|
|
|
/** @backbone_lock: lock protecting backbone_gw pointer */
|
|
spinlock_t backbone_lock;
|
|
|
|
/** @lasttime: last time we heard of claim (locals only) */
|
|
unsigned long lasttime;
|
|
|
|
/** @hash_entry: hlist node for &batadv_priv_bla.claim_hash */
|
|
struct hlist_node hash_entry;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct rcu_head rcu;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct kref refcount;
|
|
};
|
|
#endif
|
|
|
|
/**
|
|
* struct batadv_tt_common_entry - tt local & tt global common data
|
|
*/
|
|
struct batadv_tt_common_entry {
|
|
/** @addr: mac address of non-mesh client */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/** @vid: VLAN identifier */
|
|
unsigned short vid;
|
|
|
|
/**
|
|
* @hash_entry: hlist node for &batadv_priv_tt.local_hash or for
|
|
* &batadv_priv_tt.global_hash
|
|
*/
|
|
struct hlist_node hash_entry;
|
|
|
|
/** @flags: various state handling flags (see batadv_tt_client_flags) */
|
|
u16 flags;
|
|
|
|
/** @added_at: timestamp used for purging stale tt common entries */
|
|
unsigned long added_at;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_local_entry - translation table local entry data
|
|
*/
|
|
struct batadv_tt_local_entry {
|
|
/** @common: general translation table data */
|
|
struct batadv_tt_common_entry common;
|
|
|
|
/** @last_seen: timestamp used for purging stale tt local entries */
|
|
unsigned long last_seen;
|
|
|
|
/** @vlan: soft-interface vlan of the entry */
|
|
struct batadv_softif_vlan *vlan;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_global_entry - translation table global entry data
|
|
*/
|
|
struct batadv_tt_global_entry {
|
|
/** @common: general translation table data */
|
|
struct batadv_tt_common_entry common;
|
|
|
|
/** @orig_list: list of orig nodes announcing this non-mesh client */
|
|
struct hlist_head orig_list;
|
|
|
|
/** @orig_list_count: number of items in the orig_list */
|
|
atomic_t orig_list_count;
|
|
|
|
/** @list_lock: lock protecting orig_list */
|
|
spinlock_t list_lock;
|
|
|
|
/** @roam_at: time at which TT_GLOBAL_ROAM was set */
|
|
unsigned long roam_at;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client
|
|
*/
|
|
struct batadv_tt_orig_list_entry {
|
|
/** @orig_node: pointer to orig node announcing this non-mesh client */
|
|
struct batadv_orig_node *orig_node;
|
|
|
|
/**
|
|
* @ttvn: translation table version number which added the non-mesh
|
|
* client
|
|
*/
|
|
u8 ttvn;
|
|
|
|
/** @flags: per orig entry TT sync flags */
|
|
u8 flags;
|
|
|
|
/** @list: list node for &batadv_tt_global_entry.orig_list */
|
|
struct hlist_node list;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_change_node - structure for tt changes occurred
|
|
*/
|
|
struct batadv_tt_change_node {
|
|
/** @list: list node for &batadv_priv_tt.changes_list */
|
|
struct list_head list;
|
|
|
|
/** @change: holds the actual translation table diff data */
|
|
struct batadv_tvlv_tt_change change;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_req_node - data to keep track of the tt requests in flight
|
|
*/
|
|
struct batadv_tt_req_node {
|
|
/**
|
|
* @addr: mac address address of the originator this request was sent to
|
|
*/
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/** @issued_at: timestamp used for purging stale tt requests */
|
|
unsigned long issued_at;
|
|
|
|
/** @refcount: number of contexts the object is used by */
|
|
struct kref refcount;
|
|
|
|
/** @list: list node for &batadv_priv_tt.req_list */
|
|
struct hlist_node list;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tt_roam_node - roaming client data
|
|
*/
|
|
struct batadv_tt_roam_node {
|
|
/** @addr: mac address of the client in the roaming phase */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/**
|
|
* @counter: number of allowed roaming events per client within a single
|
|
* OGM interval (changes are committed with each OGM)
|
|
*/
|
|
atomic_t counter;
|
|
|
|
/**
|
|
* @first_time: timestamp used for purging stale roaming node entries
|
|
*/
|
|
unsigned long first_time;
|
|
|
|
/** @list: list node for &batadv_priv_tt.roam_list */
|
|
struct list_head list;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_nc_node - network coding node
|
|
*/
|
|
struct batadv_nc_node {
|
|
/** @list: next and prev pointer for the list handling */
|
|
struct list_head list;
|
|
|
|
/** @addr: the node's mac address */
|
|
u8 addr[ETH_ALEN];
|
|
|
|
/** @refcount: number of contexts the object is used by */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
|
|
/** @orig_node: pointer to corresponding orig node struct */
|
|
struct batadv_orig_node *orig_node;
|
|
|
|
/** @last_seen: timestamp of last ogm received from this node */
|
|
unsigned long last_seen;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_nc_path - network coding path
|
|
*/
|
|
struct batadv_nc_path {
|
|
/** @hash_entry: next and prev pointer for the list handling */
|
|
struct hlist_node hash_entry;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
|
|
/** @refcount: number of contexts the object is used by */
|
|
struct kref refcount;
|
|
|
|
/** @packet_list: list of buffered packets for this path */
|
|
struct list_head packet_list;
|
|
|
|
/** @packet_list_lock: access lock for packet list */
|
|
spinlock_t packet_list_lock;
|
|
|
|
/** @next_hop: next hop (destination) of path */
|
|
u8 next_hop[ETH_ALEN];
|
|
|
|
/** @prev_hop: previous hop (source) of path */
|
|
u8 prev_hop[ETH_ALEN];
|
|
|
|
/** @last_valid: timestamp for last validation of path */
|
|
unsigned long last_valid;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_nc_packet - network coding packet used when coding and
|
|
* decoding packets
|
|
*/
|
|
struct batadv_nc_packet {
|
|
/** @list: next and prev pointer for the list handling */
|
|
struct list_head list;
|
|
|
|
/** @packet_id: crc32 checksum of skb data */
|
|
__be32 packet_id;
|
|
|
|
/**
|
|
* @timestamp: field containing the info when the packet was added to
|
|
* path
|
|
*/
|
|
unsigned long timestamp;
|
|
|
|
/** @neigh_node: pointer to original next hop neighbor of skb */
|
|
struct batadv_neigh_node *neigh_node;
|
|
|
|
/** @skb: skb which can be encoded or used for decoding */
|
|
struct sk_buff *skb;
|
|
|
|
/** @nc_path: pointer to path this nc packet is attached to */
|
|
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.
|
|
*/
|
|
struct batadv_skb_cb {
|
|
/**
|
|
* @decoded: Marks a skb as decoded, which is checked when searching for
|
|
* coding opportunities in network-coding.c
|
|
*/
|
|
unsigned char decoded:1;
|
|
|
|
/** @num_bcasts: Counter for broadcast packet retransmissions */
|
|
unsigned char num_bcasts;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_forw_packet - structure for bcast packets to be sent/forwarded
|
|
*/
|
|
struct batadv_forw_packet {
|
|
/**
|
|
* @list: list node for &batadv_priv.forw.bcast_list and
|
|
* &batadv_priv.forw.bat_list
|
|
*/
|
|
struct hlist_node list;
|
|
|
|
/** @cleanup_list: list node for purging functions */
|
|
struct hlist_node cleanup_list;
|
|
|
|
/** @send_time: execution time for delayed_work (packet sending) */
|
|
unsigned long send_time;
|
|
|
|
/**
|
|
* @own: bool for locally generated packets (local OGMs are re-scheduled
|
|
* after sending)
|
|
*/
|
|
u8 own;
|
|
|
|
/** @skb: bcast packet's skb buffer */
|
|
struct sk_buff *skb;
|
|
|
|
/** @packet_len: size of aggregated OGM packet inside the skb buffer */
|
|
u16 packet_len;
|
|
|
|
/** @direct_link_flags: direct link flags for aggregated OGM packets */
|
|
u32 direct_link_flags;
|
|
|
|
/** @num_packets: counter for aggregated OGMv1 packets */
|
|
u8 num_packets;
|
|
|
|
/** @delayed_work: work queue callback item for packet sending */
|
|
struct delayed_work delayed_work;
|
|
|
|
/**
|
|
* @if_incoming: pointer to incoming hard-iface or primary iface if
|
|
* locally generated packet
|
|
*/
|
|
struct batadv_hard_iface *if_incoming;
|
|
|
|
/**
|
|
* @if_outgoing: packet where the packet should be sent to, or NULL if
|
|
* unspecified
|
|
*/
|
|
struct batadv_hard_iface *if_outgoing;
|
|
|
|
/** @queue_left: The queue (counter) this packet was applied to */
|
|
atomic_t *queue_left;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_algo_iface_ops - mesh algorithm callbacks (interface specific)
|
|
*/
|
|
struct batadv_algo_iface_ops {
|
|
/**
|
|
* @activate: start routing mechanisms when hard-interface is brought up
|
|
* (optional)
|
|
*/
|
|
void (*activate)(struct batadv_hard_iface *hard_iface);
|
|
|
|
/** @enable: init routing info when hard-interface is enabled */
|
|
int (*enable)(struct batadv_hard_iface *hard_iface);
|
|
|
|
/** @disable: de-init routing info when hard-interface is disabled */
|
|
void (*disable)(struct batadv_hard_iface *hard_iface);
|
|
|
|
/**
|
|
* @update_mac: (re-)init mac addresses of the protocol information
|
|
* belonging to this hard-interface
|
|
*/
|
|
void (*update_mac)(struct batadv_hard_iface *hard_iface);
|
|
|
|
/** @primary_set: called when primary interface is selected / changed */
|
|
void (*primary_set)(struct batadv_hard_iface *hard_iface);
|
|
};
|
|
|
|
/**
|
|
* struct batadv_algo_neigh_ops - mesh algorithm callbacks (neighbour specific)
|
|
*/
|
|
struct batadv_algo_neigh_ops {
|
|
/** @hardif_init: called on creation of single hop entry (optional) */
|
|
void (*hardif_init)(struct batadv_hardif_neigh_node *neigh);
|
|
|
|
/**
|
|
* @cmp: compare the metrics of two neighbors for their respective
|
|
* outgoing interfaces
|
|
*/
|
|
int (*cmp)(struct batadv_neigh_node *neigh1,
|
|
struct batadv_hard_iface *if_outgoing1,
|
|
struct batadv_neigh_node *neigh2,
|
|
struct batadv_hard_iface *if_outgoing2);
|
|
|
|
/**
|
|
* @is_similar_or_better: check if neigh1 is equally similar or better
|
|
* than neigh2 for their respective outgoing interface from the metric
|
|
* prospective
|
|
*/
|
|
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
|
|
/** @print: print the single hop neighbor list (optional) */
|
|
void (*print)(struct batadv_priv *priv, struct seq_file *seq);
|
|
#endif
|
|
|
|
/** @dump: dump neighbors to a netlink socket (optional) */
|
|
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)
|
|
*/
|
|
struct batadv_algo_orig_ops {
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
|
|
/** @print: print the originator table (optional) */
|
|
void (*print)(struct batadv_priv *priv, struct seq_file *seq,
|
|
struct batadv_hard_iface *hard_iface);
|
|
#endif
|
|
|
|
/** @dump: dump originators to a netlink socket (optional) */
|
|
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)
|
|
*/
|
|
struct batadv_algo_gw_ops {
|
|
/** @init_sel_class: initialize GW selection class (optional) */
|
|
void (*init_sel_class)(struct batadv_priv *bat_priv);
|
|
|
|
/**
|
|
* @store_sel_class: parse and stores a new GW selection class
|
|
* (optional)
|
|
*/
|
|
ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff,
|
|
size_t count);
|
|
|
|
/** @show_sel_class: prints the current GW selection class (optional) */
|
|
ssize_t (*show_sel_class)(struct batadv_priv *bat_priv, char *buff);
|
|
|
|
/**
|
|
* @get_best_gw_node: select the best GW from the list of available
|
|
* nodes (optional)
|
|
*/
|
|
struct batadv_gw_node *(*get_best_gw_node)
|
|
(struct batadv_priv *bat_priv);
|
|
|
|
/**
|
|
* @is_eligible: check if a newly discovered GW is a potential candidate
|
|
* for the election as best GW (optional)
|
|
*/
|
|
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
|
|
/** @print: print the gateway table (optional) */
|
|
void (*print)(struct batadv_priv *bat_priv, struct seq_file *seq);
|
|
#endif
|
|
|
|
/** @dump: dump gateways to a netlink socket (optional) */
|
|
void (*dump)(struct sk_buff *msg, struct netlink_callback *cb,
|
|
struct batadv_priv *priv);
|
|
};
|
|
|
|
/**
|
|
* struct batadv_algo_ops - mesh algorithm callbacks
|
|
*/
|
|
struct batadv_algo_ops {
|
|
/** @list: list node for the batadv_algo_list */
|
|
struct hlist_node list;
|
|
|
|
/** @name: name of the algorithm */
|
|
char *name;
|
|
|
|
/** @iface: callbacks related to interface handling */
|
|
struct batadv_algo_iface_ops iface;
|
|
|
|
/** @neigh: callbacks related to neighbors handling */
|
|
struct batadv_algo_neigh_ops neigh;
|
|
|
|
/** @orig: callbacks related to originators handling */
|
|
struct batadv_algo_orig_ops orig;
|
|
|
|
/** @gw: callbacks related to GW mode */
|
|
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
|
|
*/
|
|
struct batadv_dat_entry {
|
|
/** @ip: the IPv4 corresponding to this DAT/ARP entry */
|
|
__be32 ip;
|
|
|
|
/** @mac_addr: the MAC address associated to the stored IPv4 */
|
|
u8 mac_addr[ETH_ALEN];
|
|
|
|
/** @vid: the vlan ID associated to this entry */
|
|
unsigned short vid;
|
|
|
|
/**
|
|
* @last_update: time in jiffies when this entry was refreshed last time
|
|
*/
|
|
unsigned long last_update;
|
|
|
|
/** @hash_entry: hlist node for &batadv_priv_dat.hash */
|
|
struct hlist_node hash_entry;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_hw_addr - a list entry for a MAC address
|
|
*/
|
|
struct batadv_hw_addr {
|
|
/** @list: list node for the linking of entries */
|
|
struct hlist_node list;
|
|
|
|
/** @addr: the MAC address of this list entry */
|
|
unsigned char addr[ETH_ALEN];
|
|
};
|
|
|
|
/**
|
|
* struct batadv_dat_candidate - candidate destination for DAT operations
|
|
*/
|
|
struct batadv_dat_candidate {
|
|
/**
|
|
* @type: the type of the selected candidate. It can one of the
|
|
* following:
|
|
* - BATADV_DAT_CANDIDATE_NOT_FOUND
|
|
* - BATADV_DAT_CANDIDATE_ORIG
|
|
*/
|
|
int type;
|
|
|
|
/**
|
|
* @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to
|
|
* the corresponding originator node structure
|
|
*/
|
|
struct batadv_orig_node *orig_node;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tvlv_container - container for tvlv appended to OGMs
|
|
*/
|
|
struct batadv_tvlv_container {
|
|
/** @list: hlist node for &batadv_priv_tvlv.container_list */
|
|
struct hlist_node list;
|
|
|
|
/** @tvlv_hdr: tvlv header information needed to construct the tvlv */
|
|
struct batadv_tvlv_hdr tvlv_hdr;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
};
|
|
|
|
/**
|
|
* struct batadv_tvlv_handler - handler for specific tvlv type and version
|
|
*/
|
|
struct batadv_tvlv_handler {
|
|
/** @list: hlist node for &batadv_priv_tvlv.handler_list */
|
|
struct hlist_node list;
|
|
|
|
/**
|
|
* @ogm_handler: handler callback which is given the tvlv payload to
|
|
* process on incoming OGM packets
|
|
*/
|
|
void (*ogm_handler)(struct batadv_priv *bat_priv,
|
|
struct batadv_orig_node *orig,
|
|
u8 flags, void *tvlv_value, u16 tvlv_value_len);
|
|
|
|
/**
|
|
* @unicast_handler: handler callback which is given the tvlv payload to
|
|
* process on incoming unicast tvlv packets
|
|
*/
|
|
int (*unicast_handler)(struct batadv_priv *bat_priv,
|
|
u8 *src, u8 *dst,
|
|
void *tvlv_value, u16 tvlv_value_len);
|
|
|
|
/** @type: tvlv type this handler feels responsible for */
|
|
u8 type;
|
|
|
|
/** @version: tvlv version this handler feels responsible for */
|
|
u8 version;
|
|
|
|
/** @flags: tvlv handler flags */
|
|
u8 flags;
|
|
|
|
/** @refcount: number of contexts the object is used */
|
|
struct kref refcount;
|
|
|
|
/** @rcu: struct used for freeing in an RCU-safe manner */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
/**
|
|
* enum batadv_tvlv_handler_flags - tvlv handler flags definitions
|
|
*/
|
|
enum batadv_tvlv_handler_flags {
|
|
/**
|
|
* @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_CIFNOTFND = BIT(1),
|
|
|
|
/**
|
|
* @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
|
|
*/
|
|
BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
|
|
};
|
|
|
|
/**
|
|
* struct batadv_store_mesh_work - Work queue item to detach add/del interface
|
|
* from sysfs locks
|
|
*/
|
|
struct batadv_store_mesh_work {
|
|
/**
|
|
* @net_dev: netdevice to add/remove to/from batman-adv soft-interface
|
|
*/
|
|
struct net_device *net_dev;
|
|
|
|
/** @soft_iface_name: name of soft-interface to modify */
|
|
char soft_iface_name[IFNAMSIZ];
|
|
|
|
/** @work: work queue item */
|
|
struct work_struct work;
|
|
};
|
|
|
|
#endif /* _NET_BATMAN_ADV_TYPES_H_ */
|