#include <linux/types.h>
#include <linux/jhash.h>
+#include <asm/unaligned.h>
#include "ieee80211_i.h"
*
*
*
- * @MESH_PATH_ACTIVE: the mesh path is can be used for forwarding
- * @MESH_PATH_RESOLVED: the discovery process is running for this mesh path
+ * @MESH_PATH_ACTIVE: the mesh path can be used for forwarding
+ * @MESH_PATH_RESOLVING: the discovery process is running for this mesh path
* @MESH_PATH_DSN_VALID: the mesh path contains a valid destination sequence
* number
* @MESH_PATH_FIXED: the mesh path has been manually set and should not be
* modified
* @MESH_PATH_RESOLVED: the mesh path can has been resolved
- * @MESH_PATH_DELETE: the mesh path is scheduled to be deleted
*
- * MESH_PATH_RESOLVED and MESH_PATH_DELETE are used by the mesh path timer to
+ * MESH_PATH_RESOLVED is used by the mesh path timer to
* decide when to stop or cancel the mesh path discovery.
*/
enum mesh_path_flags {
MESH_PATH_DSN_VALID = BIT(2),
MESH_PATH_FIXED = BIT(3),
MESH_PATH_RESOLVED = BIT(4),
- MESH_PATH_DELETE = BIT(5),
};
/**
* struct mesh_path - mac80211 mesh path structure
*
* @dst: mesh path destination mac address
- * @dev: mesh path device
+ * @sdata: mesh subif
* @next_hop: mesh neighbor to which frames for this destination will be
* forwarded
* @timer: mesh path discovery timer
* @state_lock: mesh pat state lock
*
*
- * The combination of dst and dev is unique in the mesh path table. A reference
- * to the next_hop sta will be kept and in case this sta is removed, the
- * mesh_path structure must be also removed or substitued in a rcu safe way
+ * The combination of dst and sdata is unique in the mesh path table. Since the
+ * next_hop STA is only protected by RCU as well, deleting the STA must also
+ * remove/substitute the mesh_path structure and wait until that is no longer
+ * reachable before destroying the STA completely.
*/
struct mesh_path {
u8 dst[ETH_ALEN];
- struct net_device *dev;
+ u8 mpp[ETH_ALEN]; /* used for MPP or MAP */
+ struct ieee80211_sub_if_data *sdata;
struct sta_info *next_hop;
struct timer_list timer;
struct sk_buff_head frame_queue;
__u32 hash_rnd; /* Used for hash generation */
atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
void (*free_node) (struct hlist_node *p, bool free_leafs);
- void (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl);
+ int (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl);
int size_order;
int mean_chain_len;
};
struct mesh_rmc {
struct rmc_entry bucket[RMC_BUCKETS];
- u8 idx_mask;
+ u32 idx_mask;
};
-/* Mesh IEs constants */
-#define MESH_CFG_LEN 19
-
/*
* MESH_CFG_COMP_LEN Includes:
* - Active path selection protocol ID.
* Does not include mesh capabilities, which may vary across nodes in the same
* mesh
*/
-#define MESH_CFG_CMP_LEN 17
+#define MESH_CFG_CMP_LEN (IEEE80211_MESH_CONFIG_LEN - 2)
/* Default values, timeouts in ms */
#define MESH_TTL 5
/* Public interfaces */
/* Various */
-u8 mesh_id_hash(u8 *mesh_id, int mesh_id_len);
int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
struct ieee80211_sub_if_data *sdata);
int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
- struct net_device *dev);
-bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev);
-void mesh_ids_set_default(struct ieee80211_if_sta *sta);
-void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev);
-void mesh_rmc_free(struct net_device *dev);
-int mesh_rmc_init(struct net_device *dev);
+ struct ieee80211_sub_if_data *sdata);
+bool mesh_matches_local(struct ieee802_11_elems *ie,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
+void mesh_mgmt_ies_add(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
+int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
void ieee80211s_init(void);
void ieee80211s_stop(void);
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
+ieee80211_rx_result
+ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
+void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
/* Mesh paths */
-int mesh_nexthop_lookup(u8 *next_hop, struct sk_buff *skb,
- struct net_device *dev);
-void mesh_path_start_discovery(struct net_device *dev);
-struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev);
-struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev);
+int mesh_nexthop_lookup(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mesh_path_lookup(u8 *dst,
+ struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mpp_path_lookup(u8 *dst,
+ struct ieee80211_sub_if_data *sdata);
+int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mesh_path_lookup_by_idx(int idx,
+ struct ieee80211_sub_if_data *sdata);
void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop);
-void mesh_path_expire(struct net_device *dev);
-void mesh_path_flush(struct net_device *dev);
-void mesh_rx_path_sel_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
- size_t len);
-int mesh_path_add(u8 *dst, struct net_device *dev);
+void mesh_path_expire(struct ieee80211_sub_if_data *sdata);
+void mesh_path_flush(struct ieee80211_sub_if_data *sdata);
+void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len);
+int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata);
/* Mesh plinks */
-void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
- bool add);
-bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
- struct net_device *dev);
-void mesh_accept_plinks_update(struct net_device *dev);
-struct sta_info *mesh_plink_add(u8 *hw_addr, u64 rates, struct net_device *dev);
+void mesh_neighbour_update(u8 *hw_addr, u32 rates,
+ struct ieee80211_sub_if_data *sdata, bool add);
+bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
+void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
void mesh_plink_broken(struct sta_info *sta);
void mesh_plink_deactivate(struct sta_info *sta);
int mesh_plink_open(struct sta_info *sta);
-int mesh_plink_close(struct sta_info *sta);
void mesh_plink_block(struct sta_info *sta);
-void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
- size_t len, struct ieee80211_rx_status *rx_status);
+void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct ieee80211_rx_status *rx_status);
/* Private interfaces */
/* Mesh tables */
struct mesh_table *mesh_table_alloc(int size_order);
void mesh_table_free(struct mesh_table *tbl, bool free_leafs);
struct mesh_table *mesh_table_grow(struct mesh_table *tbl);
-u32 mesh_table_hash(u8 *addr, struct net_device *dev, struct mesh_table *tbl);
+u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata,
+ struct mesh_table *tbl);
/* Mesh paths */
int mesh_path_error_tx(u8 *dest, __le32 dest_dsn, u8 *ra,
- struct net_device *dev);
+ struct ieee80211_sub_if_data *sdata);
void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
void mesh_path_flush_pending(struct mesh_path *mpath);
void mesh_path_tx_pending(struct mesh_path *mpath);
int mesh_pathtbl_init(void);
void mesh_pathtbl_unregister(void);
-int mesh_path_del(u8 *addr, struct net_device *dev);
+int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata);
void mesh_path_timer(unsigned long data);
void mesh_path_flush_by_nexthop(struct sta_info *sta);
-void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev);
+void mesh_path_discard_frame(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
#ifdef CONFIG_MAC80211_MESH
extern int mesh_allocated;
static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
{
- return sdata->u.sta.mshcfg.dot11MeshMaxPeerLinks -
- atomic_read(&sdata->u.sta.mshstats.estab_plinks);
+ return sdata->u.mesh.mshcfg.dot11MeshMaxPeerLinks -
+ atomic_read(&sdata->u.mesh.mshstats.estab_plinks);
}
static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata)
{
- return (min(mesh_plink_free_count(sdata),
+ return (min_t(long, mesh_plink_free_count(sdata),
MESH_MAX_PLINKS - sdata->local->num_sta)) > 0;
}
for (i = 0; i <= x->hash_mask; i++) \
hlist_for_each_entry_rcu(node, p, &x->hash_buckets[i], list)
+void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local);
+
#else
#define mesh_allocated 0
+static inline void
+ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {}
#endif
-#define MESH_PREQ(skb) (skb->cb + 30)
-
#endif /* IEEE80211S_H */
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