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Diffstat (limited to 'include/net/bluetooth/hci_core.h')
-rw-r--r--include/net/bluetooth/hci_core.h280
1 files changed, 125 insertions, 155 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index ea4395f1d260..5e2e98458496 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -28,10 +28,6 @@
#include <linux/interrupt.h>
#include <net/bluetooth/hci.h>
-/* HCI upper protocols */
-#define HCI_PROTO_L2CAP 0
-#define HCI_PROTO_SCO 1
-
/* HCI priority */
#define HCI_PRIO_MAX 7
@@ -54,25 +50,17 @@ struct inquiry_entry {
};
struct inquiry_cache {
- spinlock_t lock;
__u32 timestamp;
struct inquiry_entry *list;
};
struct hci_conn_hash {
struct list_head list;
- spinlock_t lock;
unsigned int acl_num;
unsigned int sco_num;
unsigned int le_num;
};
-struct hci_chan_hash {
- struct list_head list;
- spinlock_t lock;
- unsigned int num;
-};
-
struct bdaddr_list {
struct list_head list;
bdaddr_t bdaddr;
@@ -124,7 +112,7 @@ struct adv_entry {
#define NUM_REASSEMBLY 4
struct hci_dev {
struct list_head list;
- spinlock_t lock;
+ struct mutex lock;
atomic_t refcnt;
char name[8];
@@ -188,6 +176,11 @@ struct hci_dev {
unsigned int sco_pkts;
unsigned int le_pkts;
+ __u16 block_len;
+ __u16 block_mtu;
+ __u16 num_blocks;
+ __u16 block_cnt;
+
unsigned long acl_last_tx;
unsigned long sco_last_tx;
unsigned long le_last_tx;
@@ -200,10 +193,13 @@ struct hci_dev {
__u16 discov_timeout;
struct delayed_work discov_off;
+ struct delayed_work service_cache;
+
struct timer_list cmd_timer;
- struct tasklet_struct cmd_task;
- struct tasklet_struct rx_task;
- struct tasklet_struct tx_task;
+
+ struct work_struct rx_work;
+ struct work_struct cmd_work;
+ struct work_struct tx_work;
struct sk_buff_head rx_q;
struct sk_buff_head raw_q;
@@ -232,7 +228,7 @@ struct hci_dev {
struct list_head remote_oob_data;
struct list_head adv_entries;
- struct timer_list adv_timer;
+ struct delayed_work adv_work;
struct hci_dev_stats stat;
@@ -301,21 +297,19 @@ struct hci_conn {
unsigned int sent;
struct sk_buff_head data_q;
- struct hci_chan_hash chan_hash;
+ struct list_head chan_list;
- struct timer_list disc_timer;
+ struct delayed_work disc_work;
struct timer_list idle_timer;
struct timer_list auto_accept_timer;
- struct work_struct work_add;
- struct work_struct work_del;
-
struct device dev;
atomic_t devref;
struct hci_dev *hdev;
void *l2cap_data;
void *sco_data;
+ void *smp_conn;
struct hci_conn *link;
@@ -332,25 +326,31 @@ struct hci_chan {
unsigned int sent;
};
-extern struct hci_proto *hci_proto[];
extern struct list_head hci_dev_list;
extern struct list_head hci_cb_list;
extern rwlock_t hci_dev_list_lock;
extern rwlock_t hci_cb_list_lock;
+/* ----- HCI interface to upper protocols ----- */
+extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
+extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
+extern int l2cap_disconn_ind(struct hci_conn *hcon);
+extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
+extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
+extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
+
+extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
+extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
+extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
+extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
+
/* ----- Inquiry cache ----- */
#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
-#define inquiry_cache_lock(c) spin_lock(&c->lock)
-#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
-#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
-#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
-
static inline void inquiry_cache_init(struct hci_dev *hdev)
{
struct inquiry_cache *c = &hdev->inq_cache;
- spin_lock_init(&c->lock);
c->list = NULL;
}
@@ -390,15 +390,15 @@ static inline void hci_conn_hash_init(struct hci_dev *hdev)
{
struct hci_conn_hash *h = &hdev->conn_hash;
INIT_LIST_HEAD(&h->list);
- spin_lock_init(&h->lock);
h->acl_num = 0;
h->sco_num = 0;
+ h->le_num = 0;
}
static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- list_add(&c->list, &h->list);
+ list_add_rcu(&c->list, &h->list);
switch (c->type) {
case ACL_LINK:
h->acl_num++;
@@ -416,7 +416,10 @@ static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- list_del(&c->list);
+
+ list_del_rcu(&c->list);
+ synchronize_rcu();
+
switch (c->type) {
case ACL_LINK:
h->acl_num--;
@@ -451,14 +454,18 @@ static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
__u16 handle)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- struct list_head *p;
struct hci_conn *c;
- list_for_each(p, &h->list) {
- c = list_entry(p, struct hci_conn, list);
- if (c->handle == handle)
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->handle == handle) {
+ rcu_read_unlock();
return c;
+ }
}
+ rcu_read_unlock();
+
return NULL;
}
@@ -466,14 +473,19 @@ static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
__u8 type, bdaddr_t *ba)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- struct list_head *p;
struct hci_conn *c;
- list_for_each(p, &h->list) {
- c = list_entry(p, struct hci_conn, list);
- if (c->type == type && !bacmp(&c->dst, ba))
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == type && !bacmp(&c->dst, ba)) {
+ rcu_read_unlock();
return c;
+ }
}
+
+ rcu_read_unlock();
+
return NULL;
}
@@ -481,37 +493,20 @@ static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
__u8 type, __u16 state)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- struct list_head *p;
struct hci_conn *c;
- list_for_each(p, &h->list) {
- c = list_entry(p, struct hci_conn, list);
- if (c->type == type && c->state == state)
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == type && c->state == state) {
+ rcu_read_unlock();
return c;
+ }
}
- return NULL;
-}
-static inline void hci_chan_hash_init(struct hci_conn *c)
-{
- struct hci_chan_hash *h = &c->chan_hash;
- INIT_LIST_HEAD(&h->list);
- spin_lock_init(&h->lock);
- h->num = 0;
-}
+ rcu_read_unlock();
-static inline void hci_chan_hash_add(struct hci_conn *c, struct hci_chan *chan)
-{
- struct hci_chan_hash *h = &c->chan_hash;
- list_add(&chan->list, &h->list);
- h->num++;
-}
-
-static inline void hci_chan_hash_del(struct hci_conn *c, struct hci_chan *chan)
-{
- struct hci_chan_hash *h = &c->chan_hash;
- list_del(&chan->list);
- h->num--;
+ return NULL;
}
void hci_acl_connect(struct hci_conn *conn);
@@ -527,7 +522,7 @@ void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_chan *hci_chan_create(struct hci_conn *conn);
int hci_chan_del(struct hci_chan *chan);
-void hci_chan_hash_flush(struct hci_conn *conn);
+void hci_chan_list_flush(struct hci_conn *conn);
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
__u8 sec_level, __u8 auth_type);
@@ -538,7 +533,6 @@ int hci_conn_change_link_key(struct hci_conn *conn);
int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
-void hci_conn_enter_sniff_mode(struct hci_conn *conn);
void hci_conn_hold_device(struct hci_conn *conn);
void hci_conn_put_device(struct hci_conn *conn);
@@ -546,7 +540,7 @@ void hci_conn_put_device(struct hci_conn *conn);
static inline void hci_conn_hold(struct hci_conn *conn)
{
atomic_inc(&conn->refcnt);
- del_timer(&conn->disc_timer);
+ cancel_delayed_work_sync(&conn->disc_work);
}
static inline void hci_conn_put(struct hci_conn *conn)
@@ -565,7 +559,9 @@ static inline void hci_conn_put(struct hci_conn *conn)
} else {
timeo = msecs_to_jiffies(10);
}
- mod_timer(&conn->disc_timer, jiffies + timeo);
+ cancel_delayed_work_sync(&conn->disc_work);
+ queue_delayed_work(conn->hdev->workqueue,
+ &conn->disc_work, jiffies + timeo);
}
}
@@ -597,10 +593,8 @@ static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
try_module_get(d->owner) ? __hci_dev_hold(d) : NULL; \
})
-#define hci_dev_lock(d) spin_lock(&d->lock)
-#define hci_dev_unlock(d) spin_unlock(&d->lock)
-#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
-#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
+#define hci_dev_lock(d) mutex_lock(&d->lock)
+#define hci_dev_unlock(d) mutex_unlock(&d->lock)
struct hci_dev *hci_dev_get(int index);
struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
@@ -685,53 +679,40 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
/* ----- HCI protocols ----- */
-struct hci_proto {
- char *name;
- unsigned int id;
- unsigned long flags;
-
- void *priv;
-
- int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
- __u8 type);
- int (*connect_cfm) (struct hci_conn *conn, __u8 status);
- int (*disconn_ind) (struct hci_conn *conn);
- int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
- int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
- __u16 flags);
- int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
- int (*security_cfm) (struct hci_conn *conn, __u8 status,
- __u8 encrypt);
-};
-
static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
__u8 type)
{
- register struct hci_proto *hp;
- int mask = 0;
-
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->connect_ind)
- mask |= hp->connect_ind(hdev, bdaddr, type);
+ switch (type) {
+ case ACL_LINK:
+ return l2cap_connect_ind(hdev, bdaddr);
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->connect_ind)
- mask |= hp->connect_ind(hdev, bdaddr, type);
+ case SCO_LINK:
+ case ESCO_LINK:
+ return sco_connect_ind(hdev, bdaddr);
- return mask;
+ default:
+ BT_ERR("unknown link type %d", type);
+ return -EINVAL;
+ }
}
static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
{
- register struct hci_proto *hp;
+ switch (conn->type) {
+ case ACL_LINK:
+ case LE_LINK:
+ l2cap_connect_cfm(conn, status);
+ break;
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->connect_cfm)
- hp->connect_cfm(conn, status);
+ case SCO_LINK:
+ case ESCO_LINK:
+ sco_connect_cfm(conn, status);
+ break;
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->connect_cfm)
- hp->connect_cfm(conn, status);
+ default:
+ BT_ERR("unknown link type %d", conn->type);
+ break;
+ }
if (conn->connect_cfm_cb)
conn->connect_cfm_cb(conn, status);
@@ -739,31 +720,29 @@ static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
static inline int hci_proto_disconn_ind(struct hci_conn *conn)
{
- register struct hci_proto *hp;
- int reason = HCI_ERROR_REMOTE_USER_TERM;
-
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->disconn_ind)
- reason = hp->disconn_ind(conn);
+ if (conn->type != ACL_LINK && conn->type != LE_LINK)
+ return HCI_ERROR_REMOTE_USER_TERM;
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->disconn_ind)
- reason = hp->disconn_ind(conn);
-
- return reason;
+ return l2cap_disconn_ind(conn);
}
static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
{
- register struct hci_proto *hp;
+ switch (conn->type) {
+ case ACL_LINK:
+ case LE_LINK:
+ l2cap_disconn_cfm(conn, reason);
+ break;
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->disconn_cfm)
- hp->disconn_cfm(conn, reason);
+ case SCO_LINK:
+ case ESCO_LINK:
+ sco_disconn_cfm(conn, reason);
+ break;
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->disconn_cfm)
- hp->disconn_cfm(conn, reason);
+ default:
+ BT_ERR("unknown link type %d", conn->type);
+ break;
+ }
if (conn->disconn_cfm_cb)
conn->disconn_cfm_cb(conn, reason);
@@ -771,21 +750,16 @@ static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
{
- register struct hci_proto *hp;
__u8 encrypt;
+ if (conn->type != ACL_LINK && conn->type != LE_LINK)
+ return;
+
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
return;
encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
-
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->security_cfm)
- hp->security_cfm(conn, status, encrypt);
-
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->security_cfm)
- hp->security_cfm(conn, status, encrypt);
+ l2cap_security_cfm(conn, status, encrypt);
if (conn->security_cfm_cb)
conn->security_cfm_cb(conn, status);
@@ -794,23 +768,15 @@ static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
__u8 encrypt)
{
- register struct hci_proto *hp;
-
- hp = hci_proto[HCI_PROTO_L2CAP];
- if (hp && hp->security_cfm)
- hp->security_cfm(conn, status, encrypt);
+ if (conn->type != ACL_LINK && conn->type != LE_LINK)
+ return;
- hp = hci_proto[HCI_PROTO_SCO];
- if (hp && hp->security_cfm)
- hp->security_cfm(conn, status, encrypt);
+ l2cap_security_cfm(conn, status, encrypt);
if (conn->security_cfm_cb)
conn->security_cfm_cb(conn, status);
}
-int hci_register_proto(struct hci_proto *hproto);
-int hci_unregister_proto(struct hci_proto *hproto);
-
/* ----- HCI callbacks ----- */
struct hci_cb {
struct list_head list;
@@ -835,13 +801,13 @@ static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
- read_lock_bh(&hci_cb_list_lock);
+ read_lock(&hci_cb_list_lock);
list_for_each(p, &hci_cb_list) {
struct hci_cb *cb = list_entry(p, struct hci_cb, list);
if (cb->security_cfm)
cb->security_cfm(conn, status, encrypt);
}
- read_unlock_bh(&hci_cb_list_lock);
+ read_unlock(&hci_cb_list_lock);
}
static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
@@ -857,26 +823,26 @@ static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
hci_proto_encrypt_cfm(conn, status, encrypt);
- read_lock_bh(&hci_cb_list_lock);
+ read_lock(&hci_cb_list_lock);
list_for_each(p, &hci_cb_list) {
struct hci_cb *cb = list_entry(p, struct hci_cb, list);
if (cb->security_cfm)
cb->security_cfm(conn, status, encrypt);
}
- read_unlock_bh(&hci_cb_list_lock);
+ read_unlock(&hci_cb_list_lock);
}
static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
{
struct list_head *p;
- read_lock_bh(&hci_cb_list_lock);
+ read_lock(&hci_cb_list_lock);
list_for_each(p, &hci_cb_list) {
struct hci_cb *cb = list_entry(p, struct hci_cb, list);
if (cb->key_change_cfm)
cb->key_change_cfm(conn, status);
}
- read_unlock_bh(&hci_cb_list_lock);
+ read_unlock(&hci_cb_list_lock);
}
static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
@@ -884,13 +850,13 @@ static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
{
struct list_head *p;
- read_lock_bh(&hci_cb_list_lock);
+ read_lock(&hci_cb_list_lock);
list_for_each(p, &hci_cb_list) {
struct hci_cb *cb = list_entry(p, struct hci_cb, list);
if (cb->role_switch_cfm)
cb->role_switch_cfm(conn, status, role);
}
- read_unlock_bh(&hci_cb_list_lock);
+ read_unlock(&hci_cb_list_lock);
}
int hci_register_cb(struct hci_cb *hcb);
@@ -960,12 +926,16 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
+/* HCI socket flags */
+#define HCI_PI_MGMT_INIT 0
+
struct hci_pinfo {
struct bt_sock bt;
struct hci_dev *hdev;
struct hci_filter filter;
__u32 cmsg_mask;
unsigned short channel;
+ unsigned long flags;
};
/* HCI security filter */
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-09 02:27:26 +0000