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Diffstat (limited to 'net/wireless/mesh.c')
-rw-r--r--net/wireless/mesh.c120
1 files changed, 62 insertions, 58 deletions
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 30c49202ee4d..2c6654075ca9 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Portions
+ * Copyright (C) 2022-2024 Intel Corporation
+ */
#include <linux/ieee80211.h>
#include <linux/export.h>
#include <net/cfg80211.h>
@@ -77,6 +82,7 @@ const struct mesh_config default_mesh_config = {
.power_mode = NL80211_MESH_POWER_ACTIVE,
.dot11MeshAwakeWindowDuration = MESH_DEFAULT_AWAKE_WINDOW,
.plink_timeout = MESH_DEFAULT_PLINK_TIMEOUT,
+ .dot11MeshNolearn = false,
};
const struct mesh_setup default_mesh_setup = {
@@ -103,7 +109,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
- ASSERT_WDEV_LOCK(wdev);
+ lockdep_assert_wiphy(wdev->wiphy);
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
return -EOPNOTSUPP;
@@ -112,7 +118,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
setup->is_secure)
return -EOPNOTSUPP;
- if (wdev->mesh_id_len)
+ if (wdev->u.mesh.id_len)
return -EALREADY;
if (!setup->mesh_id_len)
@@ -121,16 +127,19 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
if (!rdev->ops->join_mesh)
return -EOPNOTSUPP;
+ if (wdev->links[0].cac_started)
+ return -EBUSY;
+
if (!setup->chandef.chan) {
/* if no channel explicitly given, use preset channel */
- setup->chandef = wdev->preset_chandef;
+ setup->chandef = wdev->u.mesh.preset_chandef;
}
if (!setup->chandef.chan) {
/* if we don't have that either, use the first usable channel */
- enum ieee80211_band band;
+ enum nl80211_band band;
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+ for (band = 0; band < NUM_NL80211_BANDS; band++) {
struct ieee80211_supported_band *sband;
struct ieee80211_channel *chan;
int i;
@@ -141,8 +150,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
for (i = 0; i < sband->n_channels; i++) {
chan = &sband->channels[i];
- if (chan->flags & (IEEE80211_CHAN_NO_IBSS |
- IEEE80211_CHAN_PASSIVE_SCAN |
+ if (chan->flags & (IEEE80211_CHAN_NO_IR |
IEEE80211_CHAN_DISABLED |
IEEE80211_CHAN_RADAR))
continue;
@@ -169,42 +177,51 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
if (!setup->basic_rates) {
struct ieee80211_supported_band *sband =
rdev->wiphy.bands[setup->chandef.chan->band];
- setup->basic_rates = ieee80211_mandatory_rates(sband);
+
+ if (setup->chandef.chan->band == NL80211_BAND_2GHZ) {
+ int i;
+
+ /*
+ * Older versions selected the mandatory rates for
+ * 2.4 GHz as well, but were broken in that only
+ * 1 Mbps was regarded as a mandatory rate. Keep
+ * using just 1 Mbps as the default basic rate for
+ * mesh to be interoperable with older versions.
+ */
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if (sband->bitrates[i].bitrate == 10) {
+ setup->basic_rates = BIT(i);
+ break;
+ }
+ }
+ } else {
+ setup->basic_rates = ieee80211_mandatory_rates(sband);
+ }
}
- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef))
+ err = cfg80211_chandef_dfs_required(&rdev->wiphy,
+ &setup->chandef,
+ NL80211_IFTYPE_MESH_POINT);
+ if (err < 0)
+ return err;
+ if (err > 0 && !setup->userspace_handles_dfs)
return -EINVAL;
- err = cfg80211_can_use_chan(rdev, wdev, setup->chandef.chan,
- CHAN_MODE_SHARED);
- if (err)
- return err;
+ if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef,
+ NL80211_IFTYPE_MESH_POINT))
+ return -EINVAL;
err = rdev_join_mesh(rdev, dev, conf, setup);
if (!err) {
- memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
- wdev->mesh_id_len = setup->mesh_id_len;
- wdev->channel = setup->chandef.chan;
+ memcpy(wdev->u.mesh.id, setup->mesh_id, setup->mesh_id_len);
+ wdev->u.mesh.id_len = setup->mesh_id_len;
+ wdev->u.mesh.chandef = setup->chandef;
+ wdev->u.mesh.beacon_interval = setup->beacon_interval;
}
return err;
}
-int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- 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;
-}
-
int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
struct cfg80211_chan_def *chandef)
@@ -225,33 +242,28 @@ int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
if (!netif_running(wdev->netdev))
return -ENETDOWN;
- err = cfg80211_can_use_chan(rdev, wdev, chandef->chan,
- CHAN_MODE_SHARED);
- if (err)
- return err;
-
err = rdev_libertas_set_mesh_channel(rdev, wdev->netdev,
chandef->chan);
if (!err)
- wdev->channel = chandef->chan;
+ wdev->u.mesh.chandef = *chandef;
return err;
}
- if (wdev->mesh_id_len)
+ if (wdev->u.mesh.id_len)
return -EBUSY;
- wdev->preset_chandef = *chandef;
+ wdev->u.mesh.preset_chandef = *chandef;
return 0;
}
-static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
- struct net_device *dev)
+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);
+ lockdep_assert_wiphy(wdev->wiphy);
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
return -EOPNOTSUPP;
@@ -259,27 +271,19 @@ static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
if (!rdev->ops->leave_mesh)
return -EOPNOTSUPP;
- if (!wdev->mesh_id_len)
+ if (!wdev->u.mesh.id_len)
return -ENOTCONN;
err = rdev_leave_mesh(rdev, dev);
if (!err) {
- wdev->mesh_id_len = 0;
- wdev->channel = NULL;
+ wdev->conn_owner_nlportid = 0;
+ wdev->u.mesh.id_len = 0;
+ wdev->u.mesh.beacon_interval = 0;
+ memset(&wdev->u.mesh.chandef, 0,
+ sizeof(wdev->u.mesh.chandef));
+ rdev_set_qos_map(rdev, dev, NULL);
+ cfg80211_sched_dfs_chan_update(rdev);
}
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;
-}
generated by cgit (git 2.34.1) at 2025-12-22 02:06:12 +0000