1 #include <linux/ieee80211.h>
2 #include <linux/export.h>
3 #include <net/cfg80211.h>
7 /* Default values, timeouts in ms */
9 #define MESH_DEFAULT_ELEMENT_TTL 31
10 #define MESH_MAX_RETR 3
11 #define MESH_RET_T 100
12 #define MESH_CONF_T 100
13 #define MESH_HOLD_T 100
15 #define MESH_PATH_TIMEOUT 5000
16 #define MESH_RANN_INTERVAL 5000
19 * Minimum interval between two consecutive PREQs originated by the same
22 #define MESH_PREQ_MIN_INT 10
23 #define MESH_PERR_MIN_INT 100
24 #define MESH_DIAM_TRAVERSAL_TIME 50
26 #define MESH_RSSI_THRESHOLD 0
29 * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds
30 * before timing out. This way it will remain ACTIVE and no data frames
31 * will be unnecessarily held in the pending queue.
33 #define MESH_PATH_REFRESH_TIME 1000
34 #define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
36 /* Default maximum number of established plinks per interface */
37 #define MESH_MAX_ESTAB_PLINKS 32
39 #define MESH_MAX_PREQ_RETRIES 4
42 const struct mesh_config default_mesh_config
= {
43 .dot11MeshRetryTimeout
= MESH_RET_T
,
44 .dot11MeshConfirmTimeout
= MESH_CONF_T
,
45 .dot11MeshHoldingTimeout
= MESH_HOLD_T
,
46 .dot11MeshMaxRetries
= MESH_MAX_RETR
,
47 .dot11MeshTTL
= MESH_TTL
,
48 .element_ttl
= MESH_DEFAULT_ELEMENT_TTL
,
49 .auto_open_plinks
= true,
50 .dot11MeshMaxPeerLinks
= MESH_MAX_ESTAB_PLINKS
,
51 .dot11MeshHWMPactivePathTimeout
= MESH_PATH_TIMEOUT
,
52 .dot11MeshHWMPpreqMinInterval
= MESH_PREQ_MIN_INT
,
53 .dot11MeshHWMPperrMinInterval
= MESH_PERR_MIN_INT
,
54 .dot11MeshHWMPnetDiameterTraversalTime
= MESH_DIAM_TRAVERSAL_TIME
,
55 .dot11MeshHWMPmaxPREQretries
= MESH_MAX_PREQ_RETRIES
,
56 .path_refresh_time
= MESH_PATH_REFRESH_TIME
,
57 .min_discovery_timeout
= MESH_MIN_DISCOVERY_TIMEOUT
,
58 .dot11MeshHWMPRannInterval
= MESH_RANN_INTERVAL
,
59 .dot11MeshGateAnnouncementProtocol
= false,
60 .dot11MeshForwarding
= true,
61 .rssi_threshold
= MESH_RSSI_THRESHOLD
,
64 const struct mesh_setup default_mesh_setup
= {
65 .path_sel_proto
= IEEE80211_PATH_PROTOCOL_HWMP
,
66 .path_metric
= IEEE80211_PATH_METRIC_AIRTIME
,
72 int __cfg80211_join_mesh(struct cfg80211_registered_device
*rdev
,
73 struct net_device
*dev
,
74 const struct mesh_setup
*setup
,
75 const struct mesh_config
*conf
)
77 struct wireless_dev
*wdev
= dev
->ieee80211_ptr
;
80 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN
!= IEEE80211_MAX_MESH_ID_LEN
);
82 ASSERT_WDEV_LOCK(wdev
);
84 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
)
87 if (!(rdev
->wiphy
.flags
& WIPHY_FLAG_MESH_AUTH
) &&
91 if (wdev
->mesh_id_len
)
94 if (!setup
->mesh_id_len
)
97 if (!rdev
->ops
->join_mesh
)
100 err
= rdev
->ops
->join_mesh(&rdev
->wiphy
, dev
, conf
, setup
);
102 memcpy(wdev
->ssid
, setup
->mesh_id
, setup
->mesh_id_len
);
103 wdev
->mesh_id_len
= setup
->mesh_id_len
;
109 int cfg80211_join_mesh(struct cfg80211_registered_device
*rdev
,
110 struct net_device
*dev
,
111 const struct mesh_setup
*setup
,
112 const struct mesh_config
*conf
)
114 struct wireless_dev
*wdev
= dev
->ieee80211_ptr
;
118 err
= __cfg80211_join_mesh(rdev
, dev
, setup
, conf
);
124 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
125 const u8
*macaddr
, const u8
* ie
, u8 ie_len
, gfp_t gfp
)
127 struct wireless_dev
*wdev
= dev
->ieee80211_ptr
;
129 if (WARN_ON(wdev
->iftype
!= NL80211_IFTYPE_MESH_POINT
))
132 nl80211_send_new_peer_candidate(wiphy_to_dev(wdev
->wiphy
), dev
,
133 macaddr
, ie
, ie_len
, gfp
);
135 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate
);
137 static int __cfg80211_leave_mesh(struct cfg80211_registered_device
*rdev
,
138 struct net_device
*dev
)
140 struct wireless_dev
*wdev
= dev
->ieee80211_ptr
;
143 ASSERT_WDEV_LOCK(wdev
);
145 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
)
148 if (!rdev
->ops
->leave_mesh
)
151 if (!wdev
->mesh_id_len
)
154 err
= rdev
->ops
->leave_mesh(&rdev
->wiphy
, dev
);
156 wdev
->mesh_id_len
= 0;
160 int cfg80211_leave_mesh(struct cfg80211_registered_device
*rdev
,
161 struct net_device
*dev
)
163 struct wireless_dev
*wdev
= dev
->ieee80211_ptr
;
167 err
= __cfg80211_leave_mesh(rdev
, dev
);