Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (c) 2008, 2009 open80211s Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Authors:    Luis Carlos Cobo <luisca@cozybit.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *             Javier Cardona <javier@cozybit.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #ifndef IEEE80211S_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #define IEEE80211S_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/jhash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "ieee80211_i.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) /* Data structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * enum mesh_path_flags - mac80211 mesh path flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * @MESH_PATH_ACTIVE: the mesh path can be used for forwarding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  * @MESH_PATH_RESOLVING: the discovery process is running for this mesh path
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  * @MESH_PATH_SN_VALID: the mesh path contains a valid destination sequence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *	number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * @MESH_PATH_FIXED: the mesh path has been manually set and should not be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *	modified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * @MESH_PATH_RESOLVED: the mesh path can has been resolved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  * @MESH_PATH_REQ_QUEUED: there is an unsent path request for this destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  *	already queued up, waiting for the discovery process to start.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  * @MESH_PATH_DELETED: the mesh path has been deleted and should no longer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  *	be used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * MESH_PATH_RESOLVED is used by the mesh path timer to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * decide when to stop or cancel the mesh path discovery.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) enum mesh_path_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	MESH_PATH_ACTIVE =	BIT(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	MESH_PATH_RESOLVING =	BIT(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	MESH_PATH_SN_VALID =	BIT(2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	MESH_PATH_FIXED	=	BIT(3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	MESH_PATH_RESOLVED =	BIT(4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	MESH_PATH_REQ_QUEUED =	BIT(5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	MESH_PATH_DELETED =	BIT(6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * enum mesh_deferred_task_flags - mac80211 mesh deferred tasks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  * @MESH_WORK_HOUSEKEEPING: run the periodic mesh housekeeping tasks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * @MESH_WORK_ROOT: the mesh root station needs to send a frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  * @MESH_WORK_DRIFT_ADJUST: time to compensate for clock drift relative to other
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  * mesh nodes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  * @MESH_WORK_MBSS_CHANGED: rebuild beacon and notify driver of BSS changes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) enum mesh_deferred_task_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	MESH_WORK_HOUSEKEEPING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	MESH_WORK_ROOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	MESH_WORK_DRIFT_ADJUST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	MESH_WORK_MBSS_CHANGED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  * struct mesh_path - mac80211 mesh path structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  * @dst: mesh path destination mac address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  * @mpp: mesh proxy mac address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  * @rhash: rhashtable list pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  * @walk_list: linked list containing all mesh_path objects.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  * @gate_list: list pointer for known gates list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72)  * @sdata: mesh subif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)  * @next_hop: mesh neighbor to which frames for this destination will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  *	forwarded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  * @timer: mesh path discovery timer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  * @frame_queue: pending queue for frames sent to this destination while the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77)  *	path is unresolved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  * @rcu: rcu head for freeing mesh path
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  * @sn: target sequence number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  * @metric: current metric to this destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  * @hop_count: hops to destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  * @exp_time: in jiffies, when the path will expire or when it expired
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  * @discovery_timeout: timeout (lapse in jiffies) used for the last discovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  *	retry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  * @discovery_retries: number of discovery retries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  * @flags: mesh path flags, as specified on &enum mesh_path_flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)  * @state_lock: mesh path state lock used to protect changes to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88)  * mpath itself.  No need to take this lock when adding or removing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  * an mpath to a hash bucket on a path table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  * @rann_snd_addr: the RANN sender address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91)  * @rann_metric: the aggregated path metric towards the root node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92)  * @last_preq_to_root: Timestamp of last PREQ sent to root
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93)  * @is_root: the destination station of this path is a root node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94)  * @is_gate: the destination station of this path is a mesh gate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95)  * @path_change_count: the number of path changes to destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98)  * The dst address is unique in the mesh path table. Since the mesh_path is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99)  * protected by RCU, deleting the next_hop STA must remove / substitute the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)  * mesh_path structure and wait until that is no longer reachable before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)  * destroying the STA completely.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct mesh_path {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	u8 dst[ETH_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	u8 mpp[ETH_ALEN];	/* used for MPP or MAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	struct rhash_head rhash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	struct hlist_node walk_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	struct hlist_node gate_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct ieee80211_sub_if_data *sdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	struct sta_info __rcu *next_hop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	struct timer_list timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	struct sk_buff_head frame_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	u32 sn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	u32 metric;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	u8 hop_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	unsigned long exp_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	u32 discovery_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	u8 discovery_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	enum mesh_path_flags flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	spinlock_t state_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	u8 rann_snd_addr[ETH_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	u32 rann_metric;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	unsigned long last_preq_to_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	bool is_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	bool is_gate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	u32 path_change_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)  * struct mesh_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)  * @known_gates: list of known mesh gates and their mpaths by the station. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  * gate's mpath may or may not be resolved and active.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  * @gates_lock: protects updates to known_gates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)  * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)  * @walk_head: linked list containging all mesh_path objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)  * @walk_lock: lock protecting walk_head
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)  * @entries: number of entries in the table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct mesh_table {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct hlist_head known_gates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	spinlock_t gates_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct rhashtable rhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	struct hlist_head walk_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	spinlock_t walk_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	atomic_t entries;		/* Up to MAX_MESH_NEIGHBOURS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) /* Recent multicast cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* RMC_BUCKETS must be a power of 2, maximum 256 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define RMC_BUCKETS		256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define RMC_QUEUE_MAX_LEN	4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define RMC_TIMEOUT		(3 * HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)  * struct rmc_entry - entry in the Recent Multicast Cache
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)  * @seqnum: mesh sequence number of the frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)  * @exp_time: expiration time of the entry, in jiffies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)  * @sa: source address of the frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)  * @list: hashtable list pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)  * The Recent Multicast Cache keeps track of the latest multicast frames that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)  * have been received by a mesh interface and discards received multicast frames
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)  * that are found in the cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct rmc_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	struct hlist_node list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	unsigned long exp_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	u32 seqnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	u8 sa[ETH_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct mesh_rmc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct hlist_head bucket[RMC_BUCKETS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	u32 idx_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define MESH_PATH_EXPIRE (600 * HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /* Default maximum number of plinks per interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define MESH_MAX_PLINKS		256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /* Maximum number of paths per interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define MESH_MAX_MPATHS		1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) /* Number of frames buffered per destination for unresolved destinations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define MESH_FRAME_QUEUE_LEN	10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /* Public interfaces */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) /* Various */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				  const u8 *da, const u8 *sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) unsigned int ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 				       struct ieee80211s_hdr *meshhdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 				       const char *addr4or5, const char *addr6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int mesh_rmc_check(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		   const u8 *addr, struct ieee80211s_hdr *mesh_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			struct ieee802_11_elems *ie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			 struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) int mesh_add_meshid_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		       struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) int mesh_add_rsn_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		    struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) int mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		       struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int mesh_add_vht_cap_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			 struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int mesh_add_he_cap_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		       struct sk_buff *skb, u8 ie_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int mesh_add_he_oper_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 			struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) int mesh_add_he_6ghz_cap_ie(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 			    struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) void ieee80211s_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) void ieee80211s_update_metric(struct ieee80211_local *local,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 			      struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			      struct ieee80211_tx_status *st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) void ieee80211_mesh_teardown_sdata(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /* wrapper for ieee80211_bss_info_change_notify() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 				       u32 changed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* mesh power save */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) u32 ieee80211_mps_local_status_update(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) u32 ieee80211_mps_set_sta_local_pm(struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 				   enum nl80211_mesh_power_mode pm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) void ieee80211_mps_set_frame_flags(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 				   struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 				   struct ieee80211_hdr *hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) void ieee80211_mps_sta_status_update(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) void ieee80211_mps_rx_h_sta_process(struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 				    struct ieee80211_hdr *hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) void ieee80211_mpsp_trigger_process(u8 *qc, struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				    bool tx, bool acked);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) void ieee80211_mps_frame_release(struct sta_info *sta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 				 struct ieee802_11_elems *elems);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /* Mesh paths */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) int mesh_nexthop_lookup(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) int mesh_nexthop_resolve(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 			 struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct mesh_path *mesh_path_lookup(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 				   const u8 *dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct mesh_path *mpp_path_lookup(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 				  const u8 *dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int mpp_path_add(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		 const u8 *dst, const u8 *mpp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct mesh_path *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) mesh_path_lookup_by_idx(struct ieee80211_sub_if_data *sdata, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct mesh_path *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) mpp_path_lookup_by_idx(struct ieee80211_sub_if_data *sdata, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) void mesh_path_expire(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 			    struct ieee80211_mgmt *mgmt, size_t len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) struct mesh_path *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) int mesh_path_add_gate(struct mesh_path *mpath);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) int mesh_path_send_to_gates(struct mesh_path *mpath);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) int mesh_gate_num(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) u32 airtime_link_metric_get(struct ieee80211_local *local,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 			    struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /* Mesh plinks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			   u8 *hw_addr, struct ieee802_11_elems *ie,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 			   struct ieee80211_rx_status *rx_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) void mesh_plink_timer(struct timer_list *t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) void mesh_plink_broken(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) u32 mesh_plink_deactivate(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) u32 mesh_plink_open(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) u32 mesh_plink_block(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 			 struct ieee80211_mgmt *mgmt, size_t len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 			 struct ieee80211_rx_status *rx_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) void mesh_sta_cleanup(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) /* Private interfaces */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /* Mesh paths */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		       u8 ttl, const u8 *target, u32 target_sn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 		       u16 target_rcode, const u8 *ra);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) void mesh_path_flush_pending(struct mesh_path *mpath);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) void mesh_path_tx_pending(struct mesh_path *mpath);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) int mesh_pathtbl_init(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) void mesh_pathtbl_unregister(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) void mesh_path_timer(struct timer_list *t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) void mesh_path_flush_by_nexthop(struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 			     struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #ifdef CONFIG_MAC80211_MESH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	atomic_inc(&sdata->u.mesh.estab_plinks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	atomic_dec(&sdata->u.mesh.estab_plinks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	return sdata->u.mesh.mshcfg.dot11MeshMaxPeerLinks -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	       atomic_read(&sdata->u.mesh.estab_plinks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	return (min_t(long, mesh_plink_free_count(sdata),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		   MESH_MAX_PLINKS - sdata->local->num_sta)) > 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) static inline void mesh_path_activate(struct mesh_path *mpath)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	mpath->flags |= MESH_PATH_ACTIVE | MESH_PATH_RESOLVED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	return sdata->u.mesh.mesh_pp_id == IEEE80211_PATH_PROTOCOL_HWMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) void mesh_sync_adjust_tsf(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) void ieee80211s_stop(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) { return false; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) static inline void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static inline void ieee80211s_stop(void) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) #endif /* IEEE80211S_H */