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
41 #define MESH_SYNC_NEIGHBOR_OFFSET_MAX 50
43 const struct mesh_config default_mesh_config = {
44 .dot11MeshRetryTimeout = MESH_RET_T,
45 .dot11MeshConfirmTimeout = MESH_CONF_T,
46 .dot11MeshHoldingTimeout = MESH_HOLD_T,
47 .dot11MeshMaxRetries = MESH_MAX_RETR,
48 .dot11MeshTTL = MESH_TTL,
49 .element_ttl = MESH_DEFAULT_ELEMENT_TTL,
50 .auto_open_plinks = true,
51 .dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
52 .dot11MeshNbrOffsetMaxNeighbor = MESH_SYNC_NEIGHBOR_OFFSET_MAX,
53 .dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
54 .dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
55 .dot11MeshHWMPperrMinInterval = MESH_PERR_MIN_INT,
56 .dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
57 .dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
58 .path_refresh_time = MESH_PATH_REFRESH_TIME,
59 .min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
60 .dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL,
61 .dot11MeshGateAnnouncementProtocol = false,
62 .dot11MeshForwarding = true,
63 .rssi_threshold = MESH_RSSI_THRESHOLD,
66 const struct mesh_setup default_mesh_setup = {
67 .sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
68 .path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
69 .path_metric = IEEE80211_PATH_METRIC_AIRTIME,
75 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
76 struct net_device *dev,
77 const struct mesh_setup *setup,
78 const struct mesh_config *conf)
80 struct wireless_dev *wdev = dev->ieee80211_ptr;
83 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
85 ASSERT_WDEV_LOCK(wdev);
87 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
90 if (!(rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
94 if (wdev->mesh_id_len)
97 if (!setup->mesh_id_len)
100 if (!rdev->ops->join_mesh)
103 err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup);
105 memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
106 wdev->mesh_id_len = setup->mesh_id_len;
112 int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
113 struct net_device *dev,
114 const struct mesh_setup *setup,
115 const struct mesh_config *conf)
117 struct wireless_dev *wdev = dev->ieee80211_ptr;
121 err = __cfg80211_join_mesh(rdev, dev, setup, conf);
127 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
128 const u8 *macaddr, const u8* ie, u8 ie_len, gfp_t gfp)
130 struct wireless_dev *wdev = dev->ieee80211_ptr;
132 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
135 nl80211_send_new_peer_candidate(wiphy_to_dev(wdev->wiphy), dev,
136 macaddr, ie, ie_len, gfp);
138 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
140 static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
141 struct net_device *dev)
143 struct wireless_dev *wdev = dev->ieee80211_ptr;
146 ASSERT_WDEV_LOCK(wdev);
148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
151 if (!rdev->ops->leave_mesh)
154 if (!wdev->mesh_id_len)
157 err = rdev->ops->leave_mesh(&rdev->wiphy, dev);
159 wdev->mesh_id_len = 0;
163 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
164 struct net_device *dev)
166 struct wireless_dev *wdev = dev->ieee80211_ptr;
170 err = __cfg80211_leave_mesh(rdev, dev);