This codes doens't do much besides allowing to start and
stop the vif.
Signed-off-by: Emmanuel Grumbach <[email protected]>
---
include/net/mac80211.h | 6 ++++++
net/mac80211/cfg.c | 35 ++++++++++++++++++++++++++++++++++
net/mac80211/chan.c | 3 +++
net/mac80211/driver-ops.h | 29 +++++++++++++++++++++++++++-
net/mac80211/iface.c | 8 ++++++--
net/mac80211/main.c | 4 ++++
net/mac80211/offchannel.c | 3 ++-
net/mac80211/trace.h | 48 +++++++++++++++++++++++++++++++++++++++++++++++
net/mac80211/util.c | 3 ++-
9 files changed, 134 insertions(+), 5 deletions(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index cfbee18..8cd030f 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3053,6 +3053,8 @@ enum ieee80211_reconfig_type {
* response template is provided, together with the location of the
* switch-timing IE within the template. The skb can only be used within
* the function call.
+ * @start_nan: join an existing nan cluster, or create a new one.
+ * @stop_nan: leave the nan cluster.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -3285,6 +3287,10 @@ struct ieee80211_ops {
void (*tdls_recv_channel_switch)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_tdls_ch_sw_params
*params);
+ int (*start_nan)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u8 master_pref);
+ int (*stop_nan)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
};
/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b37092f..c95488d 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -129,6 +129,39 @@ static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
}
+static int ieee80211_start_nan(struct wiphy *wiphy,
+ struct wireless_dev *wdev,
+ u8 master_pref)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ int ret;
+
+ mutex_lock(&sdata->local->chanctx_mtx);
+ ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
+ mutex_unlock(&sdata->local->chanctx_mtx);
+ if (ret < 0)
+ return ret;
+
+ ret = ieee80211_do_open(wdev, true);
+ if (ret)
+ return ret;
+
+ ret = drv_start_nan(sdata->local, sdata, master_pref);
+ if (ret)
+ ieee80211_sdata_stop(sdata);
+
+ return ret;
+}
+
+static void ieee80211_stop_nan(struct wiphy *wiphy,
+ struct wireless_dev *wdev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+
+ drv_stop_nan(sdata->local, sdata);
+ ieee80211_sdata_stop(sdata);
+}
+
static int ieee80211_set_noack_map(struct wiphy *wiphy,
struct net_device *dev,
u16 noack_map)
@@ -3854,4 +3887,6 @@ const struct cfg80211_ops mac80211_config_ops = {
.set_ap_chanwidth = ieee80211_set_ap_chanwidth,
.add_tx_ts = ieee80211_add_tx_ts,
.del_tx_ts = ieee80211_del_tx_ts,
+ .start_nan = ieee80211_start_nan,
+ .stop_nan = ieee80211_stop_nan,
};
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 794ccc6..29da2d5 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -622,6 +622,9 @@ static int ieee80211_assign_vif_chanctx(struct
ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *curr_ctx = NULL;
int ret = 0;
+ if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_NAN))
+ return 0;
+
conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
lockdep_is_held(&local->chanctx_mtx));
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index ab720f2..d58458f 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -219,7 +219,8 @@ static inline void drv_bss_info_changed(struct
ieee80211_local *local,
return;
if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
- sdata->vif.type == NL80211_IFTYPE_MONITOR))
+ sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+ sdata->vif.type == NL80211_IFTYPE_NAN))
return;
if (!check_sdata_in_driver(sdata))
@@ -1366,4 +1367,30 @@ drv_tdls_recv_channel_switch(struct ieee80211_local
*local,
trace_drv_return_void(local);
}
+static inline int drv_start_nan(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ u8 master_pref)
+{
+ int ret;
+
+ might_sleep();
+ check_sdata_in_driver(sdata);
+
+ trace_drv_start_nan(local, sdata, master_pref);
+ ret = local->ops->start_nan(&local->hw, &sdata->vif, master_pref);
+ trace_drv_return_int(local, ret);
+ return ret;
+}
+
+static inline void drv_stop_nan(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ might_sleep();
+ check_sdata_in_driver(sdata);
+
+ trace_drv_stop_nan(local, sdata);
+ local->ops->stop_nan(&local->hw, &sdata->vif);
+ trace_drv_return_void(local);
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e033af0..ac7c119 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -324,6 +324,9 @@ static int ieee80211_check_queues(struct
ieee80211_sub_if_data *sdata,
int n_queues = sdata->local->hw.queues;
int i;
+ if (iftype == NL80211_IFTYPE_NAN)
+ return 0;
+
if (iftype != NL80211_IFTYPE_P2P_DEVICE) {
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
if (WARN_ON_ONCE(sdata->vif.hw_queue[i] ==
@@ -635,7 +638,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool
coming_up)
local->fif_probe_req++;
}
- if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
+ if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
+ sdata->vif.type != NL80211_IFTYPE_NAN)
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_bss_info_change_notify(sdata, changed);
@@ -1683,7 +1687,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const
char *name,
ASSERT_RTNL();
- if (type == NL80211_IFTYPE_P2P_DEVICE) {
+ if (type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN) {
struct wireless_dev *wdev;
sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 35c0ad6..1763646 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -821,6 +821,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
!local->ops->tdls_recv_channel_switch))
return -EOPNOTSUPP;
+ if (WARN_ON(local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_NAN)
&&
+ (!local->ops->start_nan || !local->ops->stop_nan)))
+ return -EINVAL;
+
#ifdef CONFIG_PM
if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
return -EINVAL;
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 683f0e3..4f17b1e 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -128,7 +128,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local)
if (!ieee80211_sdata_running(sdata))
continue;
- if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
+ if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
+ sdata->vif.type == NL80211_IFTYPE_NAN)
continue;
if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 838bd92..a97ac97 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1656,6 +1656,54 @@ TRACE_EVENT(drv_get_expected_throughput,
)
);
+TRACE_EVENT(drv_start_nan,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ u8 master_pref),
+
+ TP_ARGS(local, sdata, master_pref),
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __field(u8, master_pref)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ __entry->master_pref = master_pref;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT
+ ", master_pref: %u",
+ LOCAL_PR_ARG, VIF_PR_ARG,
+ __entry->master_pref
+ )
+);
+
+TRACE_EVENT(drv_stop_nan,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata),
+
+ TP_ARGS(local, sdata),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG
+ )
+);
+
/*
* Tracing for API calls that drivers call.
*/
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 11d515f..c3726c4 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1235,7 +1235,8 @@ void ieee80211_set_wmm_default(struct
ieee80211_sub_if_data *sdata,
}
if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
- sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE) {
+ sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
+ sdata->vif.type != NL80211_IFTYPE_NAN) {
sdata->vif.bss_conf.qos = enable_qos;
if (bss_notify)
ieee80211_bss_info_change_notify(sdata,
--
1.9.1
--
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