143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
#include <linux/ieee80211.h>
|
|
#include <net/cfg80211.h>
|
|
#include "core.h"
|
|
|
|
/* Default values, timeouts in ms */
|
|
#define MESH_TTL 31
|
|
#define MESH_DEFAULT_ELEMENT_TTL 31
|
|
#define MESH_MAX_RETR 3
|
|
#define MESH_RET_T 100
|
|
#define MESH_CONF_T 100
|
|
#define MESH_HOLD_T 100
|
|
|
|
#define MESH_PATH_TIMEOUT 5000
|
|
|
|
/*
|
|
* Minimum interval between two consecutive PREQs originated by the same
|
|
* interface
|
|
*/
|
|
#define MESH_PREQ_MIN_INT 10
|
|
#define MESH_DIAM_TRAVERSAL_TIME 50
|
|
|
|
/*
|
|
* A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds
|
|
* before timing out. This way it will remain ACTIVE and no data frames
|
|
* will be unnecessarily held in the pending queue.
|
|
*/
|
|
#define MESH_PATH_REFRESH_TIME 1000
|
|
#define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
|
|
|
|
/* Default maximum number of established plinks per interface */
|
|
#define MESH_MAX_ESTAB_PLINKS 32
|
|
|
|
#define MESH_MAX_PREQ_RETRIES 4
|
|
|
|
|
|
const struct mesh_config default_mesh_config = {
|
|
.dot11MeshRetryTimeout = MESH_RET_T,
|
|
.dot11MeshConfirmTimeout = MESH_CONF_T,
|
|
.dot11MeshHoldingTimeout = MESH_HOLD_T,
|
|
.dot11MeshMaxRetries = MESH_MAX_RETR,
|
|
.dot11MeshTTL = MESH_TTL,
|
|
.element_ttl = MESH_DEFAULT_ELEMENT_TTL,
|
|
.auto_open_plinks = true,
|
|
.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
|
|
.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
|
|
.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
|
|
.dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
|
|
.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
|
|
.path_refresh_time = MESH_PATH_REFRESH_TIME,
|
|
.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
|
|
};
|
|
|
|
const struct mesh_setup default_mesh_setup = {
|
|
.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
|
|
.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
|
|
.vendor_ie = NULL,
|
|
.vendor_ie_len = 0,
|
|
};
|
|
|
|
int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
const struct mesh_setup *setup,
|
|
const struct mesh_config *conf)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->mesh_id_len)
|
|
return -EALREADY;
|
|
|
|
if (!setup->mesh_id_len)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->join_mesh)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup);
|
|
if (!err) {
|
|
memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
|
|
wdev->mesh_id_len = setup->mesh_id_len;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
const struct mesh_setup *setup,
|
|
const struct mesh_config *conf)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
wdev_lock(wdev);
|
|
err = __cfg80211_join_mesh(rdev, dev, setup, conf);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->leave_mesh)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wdev->mesh_id_len)
|
|
return -ENOTCONN;
|
|
|
|
err = rdev->ops->leave_mesh(&rdev->wiphy, dev);
|
|
if (!err)
|
|
wdev->mesh_id_len = 0;
|
|
return err;
|
|
}
|
|
|
|
int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int err;
|
|
|
|
wdev_lock(wdev);
|
|
err = __cfg80211_leave_mesh(rdev, dev);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|