Commit | Line | Data |
---|---|---|
29cbe68c | 1 | #include <linux/ieee80211.h> |
bc3b2d7f | 2 | #include <linux/export.h> |
29cbe68c | 3 | #include <net/cfg80211.h> |
c93b5e71 | 4 | #include "nl80211.h" |
29cbe68c JB |
5 | #include "core.h" |
6 | ||
7 | /* Default values, timeouts in ms */ | |
8 | #define MESH_TTL 31 | |
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 | |
14 | ||
15 | #define MESH_PATH_TIMEOUT 5000 | |
0507e159 | 16 | #define MESH_RANN_INTERVAL 5000 |
29cbe68c JB |
17 | |
18 | /* | |
19 | * Minimum interval between two consecutive PREQs originated by the same | |
20 | * interface | |
21 | */ | |
22 | #define MESH_PREQ_MIN_INT 10 | |
23 | #define MESH_DIAM_TRAVERSAL_TIME 50 | |
24 | ||
25 | /* | |
26 | * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds | |
27 | * before timing out. This way it will remain ACTIVE and no data frames | |
28 | * will be unnecessarily held in the pending queue. | |
29 | */ | |
30 | #define MESH_PATH_REFRESH_TIME 1000 | |
31 | #define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME) | |
32 | ||
33 | /* Default maximum number of established plinks per interface */ | |
34 | #define MESH_MAX_ESTAB_PLINKS 32 | |
35 | ||
36 | #define MESH_MAX_PREQ_RETRIES 4 | |
37 | ||
38 | ||
39 | const struct mesh_config default_mesh_config = { | |
40 | .dot11MeshRetryTimeout = MESH_RET_T, | |
41 | .dot11MeshConfirmTimeout = MESH_CONF_T, | |
42 | .dot11MeshHoldingTimeout = MESH_HOLD_T, | |
43 | .dot11MeshMaxRetries = MESH_MAX_RETR, | |
44 | .dot11MeshTTL = MESH_TTL, | |
45 | .element_ttl = MESH_DEFAULT_ELEMENT_TTL, | |
46 | .auto_open_plinks = true, | |
47 | .dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS, | |
48 | .dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT, | |
49 | .dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT, | |
50 | .dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME, | |
51 | .dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES, | |
52 | .path_refresh_time = MESH_PATH_REFRESH_TIME, | |
53 | .min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT, | |
0507e159 | 54 | .dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL, |
16dd7267 | 55 | .dot11MeshGateAnnouncementProtocol = false, |
29cbe68c JB |
56 | }; |
57 | ||
c80d545d JC |
58 | const struct mesh_setup default_mesh_setup = { |
59 | .path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP, | |
60 | .path_metric = IEEE80211_PATH_METRIC_AIRTIME, | |
581a8b0f JC |
61 | .ie = NULL, |
62 | .ie_len = 0, | |
5cff5e01 | 63 | .is_secure = false, |
c80d545d | 64 | }; |
29cbe68c JB |
65 | |
66 | int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, | |
67 | struct net_device *dev, | |
c80d545d | 68 | const struct mesh_setup *setup, |
29cbe68c JB |
69 | const struct mesh_config *conf) |
70 | { | |
71 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
29cbe68c JB |
72 | int err; |
73 | ||
74 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN); | |
75 | ||
76 | ASSERT_WDEV_LOCK(wdev); | |
77 | ||
78 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
79 | return -EOPNOTSUPP; | |
80 | ||
15d5dda6 JC |
81 | if (!(rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
82 | setup->is_secure) | |
83 | return -EOPNOTSUPP; | |
84 | ||
29cbe68c JB |
85 | if (wdev->mesh_id_len) |
86 | return -EALREADY; | |
87 | ||
c80d545d | 88 | if (!setup->mesh_id_len) |
29cbe68c JB |
89 | return -EINVAL; |
90 | ||
91 | if (!rdev->ops->join_mesh) | |
92 | return -EOPNOTSUPP; | |
93 | ||
c80d545d | 94 | err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup); |
29cbe68c | 95 | if (!err) { |
c80d545d JC |
96 | memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len); |
97 | wdev->mesh_id_len = setup->mesh_id_len; | |
29cbe68c JB |
98 | } |
99 | ||
100 | return err; | |
101 | } | |
102 | ||
103 | int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, | |
104 | struct net_device *dev, | |
c80d545d | 105 | const struct mesh_setup *setup, |
29cbe68c JB |
106 | const struct mesh_config *conf) |
107 | { | |
108 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
109 | int err; | |
110 | ||
111 | wdev_lock(wdev); | |
c80d545d | 112 | err = __cfg80211_join_mesh(rdev, dev, setup, conf); |
29cbe68c JB |
113 | wdev_unlock(wdev); |
114 | ||
115 | return err; | |
116 | } | |
117 | ||
c93b5e71 JC |
118 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, |
119 | const u8 *macaddr, const u8* ie, u8 ie_len, gfp_t gfp) | |
120 | { | |
121 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
122 | ||
123 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) | |
124 | return; | |
125 | ||
126 | nl80211_send_new_peer_candidate(wiphy_to_dev(wdev->wiphy), dev, | |
127 | macaddr, ie, ie_len, gfp); | |
128 | } | |
129 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); | |
130 | ||
29cbe68c JB |
131 | static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, |
132 | struct net_device *dev) | |
133 | { | |
134 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
135 | int err; | |
136 | ||
137 | ASSERT_WDEV_LOCK(wdev); | |
138 | ||
139 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
140 | return -EOPNOTSUPP; | |
141 | ||
142 | if (!rdev->ops->leave_mesh) | |
143 | return -EOPNOTSUPP; | |
144 | ||
145 | if (!wdev->mesh_id_len) | |
146 | return -ENOTCONN; | |
147 | ||
148 | err = rdev->ops->leave_mesh(&rdev->wiphy, dev); | |
149 | if (!err) | |
150 | wdev->mesh_id_len = 0; | |
151 | return err; | |
152 | } | |
153 | ||
154 | int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, | |
155 | struct net_device *dev) | |
156 | { | |
157 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
158 | int err; | |
159 | ||
160 | wdev_lock(wdev); | |
161 | err = __cfg80211_leave_mesh(rdev, dev); | |
162 | wdev_unlock(wdev); | |
163 | ||
164 | return err; | |
165 | } |