Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 310 insertions, 0 deletions

diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h
new file mode 100644
index 0000000000..c347ec9ff8
--- /dev/null
+++ b/net/mac802154/ieee802154_i.h
@@ -0,0 +1,310 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2007-2012 Siemens AG
+ *
+ * Written by:
+ * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+#ifndef __IEEE802154_I_H
+#define __IEEE802154_I_H
+
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/hrtimer.h>
+#include <net/cfg802154.h>
+#include <net/mac802154.h>
+#include <net/nl802154.h>
+#include <net/ieee802154_netdev.h>
+
+#include "llsec.h"
+
+enum ieee802154_ongoing {
+	IEEE802154_IS_SCANNING = BIT(0),
+	IEEE802154_IS_BEACONING = BIT(1),
+};
+
+/* mac802154 device private data */
+struct ieee802154_local {
+	struct ieee802154_hw hw;
+	const struct ieee802154_ops *ops;
+
+	/* hardware address filter */
+	struct ieee802154_hw_addr_filt addr_filt;
+	/* ieee802154 phy */
+	struct wpan_phy *phy;
+
+	int open_count;
+
+	/* As in mac80211 slaves list is modified:
+	 * 1) under the RTNL
+	 * 2) protected by slaves_mtx;
+	 * 3) in an RCU manner
+	 *
+	 * So atomic readers can use any of this protection methods.
+	 */
+	struct list_head	interfaces;
+	struct mutex		iflist_mtx;
+
+	/* Data related workqueue */
+	struct workqueue_struct	*workqueue;
+	/* MAC commands related workqueue */
+	struct workqueue_struct	*mac_wq;
+
+	struct hrtimer ifs_timer;
+
+	/* Scanning */
+	u8 scan_page;
+	u8 scan_channel;
+	struct ieee802154_beacon_req_frame scan_beacon_req;
+	struct cfg802154_scan_request __rcu *scan_req;
+	struct delayed_work scan_work;
+
+	/* Beaconing */
+	unsigned int beacon_interval;
+	struct ieee802154_beacon_frame beacon;
+	struct cfg802154_beacon_request __rcu *beacon_req;
+	struct delayed_work beacon_work;
+
+	/* Asynchronous tasks */
+	struct list_head rx_beacon_list;
+	struct work_struct rx_beacon_work;
+	struct list_head rx_mac_cmd_list;
+	struct work_struct rx_mac_cmd_work;
+
+	bool started;
+	bool suspended;
+	unsigned long ongoing;
+
+	struct tasklet_struct tasklet;
+	struct sk_buff_head skb_queue;
+
+	struct sk_buff *tx_skb;
+	struct work_struct sync_tx_work;
+	/* A negative Linux error code or a null/positive MLME error status */
+	int tx_result;
+};
+
+enum {
+	IEEE802154_RX_MSG        = 1,
+};
+
+enum ieee802154_sdata_state_bits {
+	SDATA_STATE_RUNNING,
+};
+
+/* Slave interface definition.
+ *
+ * Slaves represent typical network interfaces available from userspace.
+ * Each ieee802154 device/transceiver may have several slaves and able
+ * to be associated with several networks at the same time.
+ */
+struct ieee802154_sub_if_data {
+	struct list_head list; /* the ieee802154_priv->slaves list */
+
+	struct wpan_dev wpan_dev;
+
+	struct ieee802154_local *local;
+	struct net_device *dev;
+
+	/* Each interface starts and works in nominal state at a given filtering
+	 * level given by iface_default_filtering, which is set once for all at
+	 * the interface creation and should not evolve over time. For some MAC
+	 * operations however, the filtering level may change temporarily, as
+	 * reflected in the required_filtering field. The actual filtering at
+	 * the PHY level may be different and is shown in struct wpan_phy.
+	 */
+	enum ieee802154_filtering_level iface_default_filtering;
+	enum ieee802154_filtering_level required_filtering;
+
+	unsigned long state;
+	char name[IFNAMSIZ];
+
+	/* protects sec from concurrent access by netlink. access by
+	 * encrypt/decrypt/header_create safe without additional protection.
+	 */
+	struct mutex sec_mtx;
+
+	struct mac802154_llsec sec;
+};
+
+/* utility functions/constants */
+extern const void *const mac802154_wpan_phy_privid; /*  for wpan_phy privid */
+
+static inline struct ieee802154_local *
+hw_to_local(struct ieee802154_hw *hw)
+{
+	return container_of(hw, struct ieee802154_local, hw);
+}
+
+static inline struct ieee802154_sub_if_data *
+IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
+{
+	return netdev_priv(dev);
+}
+
+static inline struct ieee802154_sub_if_data *
+IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev)
+{
+	return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev);
+}
+
+static inline bool
+ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
+{
+	return test_bit(SDATA_STATE_RUNNING, &sdata->state);
+}
+
+static inline int ieee802154_get_mac_cmd(struct sk_buff *skb, u8 *mac_cmd)
+{
+	struct ieee802154_mac_cmd_pl mac_pl;
+	int ret;
+
+	if (mac_cb(skb)->type != IEEE802154_FC_TYPE_MAC_CMD)
+		return -EINVAL;
+
+	ret = ieee802154_mac_cmd_pl_pull(skb, &mac_pl);
+	if (ret)
+		return ret;
+
+	*mac_cmd = mac_pl.cmd_id;
+	return 0;
+}
+
+extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
+
+void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb);
+void ieee802154_xmit_sync_worker(struct work_struct *work);
+int ieee802154_sync_and_hold_queue(struct ieee802154_local *local);
+int ieee802154_mlme_op_pre(struct ieee802154_local *local);
+int ieee802154_mlme_tx(struct ieee802154_local *local,
+		       struct ieee802154_sub_if_data *sdata,
+		       struct sk_buff *skb);
+int ieee802154_mlme_tx_locked(struct ieee802154_local *local,
+			      struct ieee802154_sub_if_data *sdata,
+			      struct sk_buff *skb);
+void ieee802154_mlme_op_post(struct ieee802154_local *local);
+int ieee802154_mlme_tx_one(struct ieee802154_local *local,
+			   struct ieee802154_sub_if_data *sdata,
+			   struct sk_buff *skb);
+int ieee802154_mlme_tx_one_locked(struct ieee802154_local *local,
+				  struct ieee802154_sub_if_data *sdata,
+				  struct sk_buff *skb);
+netdev_tx_t
+ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
+netdev_tx_t
+ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
+enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer);
+
+/**
+ * ieee802154_hold_queue - hold ieee802154 queue
+ * @local: main mac object
+ *
+ * Hold a queue by incrementing an atomic counter and requesting the netif
+ * queues to be stopped. The queues cannot be woken up while the counter has not
+ * been reset with as any ieee802154_release_queue() calls as needed.
+ */
+void ieee802154_hold_queue(struct ieee802154_local *local);
+
+/**
+ * ieee802154_release_queue - release ieee802154 queue
+ * @local: main mac object
+ *
+ * Release a queue which is held by decrementing an atomic counter and wake it
+ * up only if the counter reaches 0.
+ */
+void ieee802154_release_queue(struct ieee802154_local *local);
+
+/**
+ * ieee802154_disable_queue - disable ieee802154 queue
+ * @local: main mac object
+ *
+ * When trying to sync the Tx queue, we cannot just stop the queue
+ * (which is basically a bit being set without proper lock handling)
+ * because it would be racy. We actually need to call netif_tx_disable()
+ * instead, which is done by this helper. Restarting the queue can
+ * however still be done with a regular wake call.
+ */
+void ieee802154_disable_queue(struct ieee802154_local *local);
+
+/* MIB callbacks */
+void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
+
+int mac802154_get_params(struct net_device *dev,
+			 struct ieee802154_llsec_params *params);
+int mac802154_set_params(struct net_device *dev,
+			 const struct ieee802154_llsec_params *params,
+			 int changed);
+
+int mac802154_add_key(struct net_device *dev,
+		      const struct ieee802154_llsec_key_id *id,
+		      const struct ieee802154_llsec_key *key);
+int mac802154_del_key(struct net_device *dev,
+		      const struct ieee802154_llsec_key_id *id);
+
+int mac802154_add_dev(struct net_device *dev,
+		      const struct ieee802154_llsec_device *llsec_dev);
+int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
+
+int mac802154_add_devkey(struct net_device *dev,
+			 __le64 device_addr,
+			 const struct ieee802154_llsec_device_key *key);
+int mac802154_del_devkey(struct net_device *dev,
+			 __le64 device_addr,
+			 const struct ieee802154_llsec_device_key *key);
+
+int mac802154_add_seclevel(struct net_device *dev,
+			   const struct ieee802154_llsec_seclevel *sl);
+int mac802154_del_seclevel(struct net_device *dev,
+			   const struct ieee802154_llsec_seclevel *sl);
+
+void mac802154_lock_table(struct net_device *dev);
+void mac802154_get_table(struct net_device *dev,
+			 struct ieee802154_llsec_table **t);
+void mac802154_unlock_table(struct net_device *dev);
+
+int mac802154_wpan_update_llsec(struct net_device *dev);
+
+/* PAN management handling */
+void mac802154_scan_worker(struct work_struct *work);
+int mac802154_trigger_scan_locked(struct ieee802154_sub_if_data *sdata,
+				  struct cfg802154_scan_request *request);
+int mac802154_abort_scan_locked(struct ieee802154_local *local,
+				struct ieee802154_sub_if_data *sdata);
+int mac802154_process_beacon(struct ieee802154_local *local,
+			     struct sk_buff *skb,
+			     u8 page, u8 channel);
+void mac802154_rx_beacon_worker(struct work_struct *work);
+
+static inline bool mac802154_is_scanning(struct ieee802154_local *local)
+{
+	return test_bit(IEEE802154_IS_SCANNING, &local->ongoing);
+}
+
+void mac802154_beacon_worker(struct work_struct *work);
+int mac802154_send_beacons_locked(struct ieee802154_sub_if_data *sdata,
+				  struct cfg802154_beacon_request *request);
+int mac802154_stop_beacons_locked(struct ieee802154_local *local,
+				  struct ieee802154_sub_if_data *sdata);
+
+static inline bool mac802154_is_beaconing(struct ieee802154_local *local)
+{
+	return test_bit(IEEE802154_IS_BEACONING, &local->ongoing);
+}
+
+void mac802154_rx_mac_cmd_worker(struct work_struct *work);
+
+/* interface handling */
+int ieee802154_iface_init(void);
+void ieee802154_iface_exit(void);
+void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
+struct net_device *
+ieee802154_if_add(struct ieee802154_local *local, const char *name,
+		  unsigned char name_assign_type, enum nl802154_iftype type,
+		  __le64 extended_addr);
+void ieee802154_remove_interfaces(struct ieee802154_local *local);
+void ieee802154_stop_device(struct ieee802154_local *local);
+
+#endif /* __IEEE802154_I_H */