Bluetooth: Make HCI call directly into SCO and L2CAP event functions
The struct hci_proto and all related register/unregister and dispatching code was removed. HCI core code now call directly the SCO and L2CAP event functions. Signed-off-by: Ulisses Furquim <ulisses@profusion.mobi> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Ulisses Furquim
Gustavo F. Padovan
Родитель
68a8aea459
Коммит
686ebf283b
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@ -28,10 +28,6 @@
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#include <linux/interrupt.h>
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#include <net/bluetooth/hci.h>
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/* HCI upper protocols */
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#define HCI_PROTO_L2CAP 0
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#define HCI_PROTO_SCO 1
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/* HCI priority */
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#define HCI_PRIO_MAX 7
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@ -330,12 +326,24 @@ struct hci_chan {
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unsigned int sent;
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};
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extern struct hci_proto *hci_proto[];
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extern struct list_head hci_dev_list;
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extern struct list_head hci_cb_list;
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extern rwlock_t hci_dev_list_lock;
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extern rwlock_t hci_cb_list_lock;
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/* ----- HCI interface to upper protocols ----- */
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extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
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extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
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extern int l2cap_disconn_ind(struct hci_conn *hcon);
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extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
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extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
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extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
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extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
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extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
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extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
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extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
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/* ----- Inquiry cache ----- */
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#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
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#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
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@ -677,53 +685,40 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
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#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
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/* ----- HCI protocols ----- */
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struct hci_proto {
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char *name;
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unsigned int id;
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unsigned long flags;
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void *priv;
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int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
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__u8 type);
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int (*connect_cfm) (struct hci_conn *conn, __u8 status);
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int (*disconn_ind) (struct hci_conn *conn);
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int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
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int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
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__u16 flags);
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int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
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int (*security_cfm) (struct hci_conn *conn, __u8 status,
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__u8 encrypt);
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};
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static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
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__u8 type)
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{
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register struct hci_proto *hp;
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int mask = 0;
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switch (type) {
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case ACL_LINK:
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return l2cap_connect_ind(hdev, bdaddr);
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->connect_ind)
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mask |= hp->connect_ind(hdev, bdaddr, type);
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case SCO_LINK:
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case ESCO_LINK:
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return sco_connect_ind(hdev, bdaddr);
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->connect_ind)
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mask |= hp->connect_ind(hdev, bdaddr, type);
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return mask;
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default:
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BT_ERR("unknown link type %d", type);
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return -EINVAL;
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}
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}
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static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
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{
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register struct hci_proto *hp;
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switch (conn->type) {
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case ACL_LINK:
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case LE_LINK:
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l2cap_connect_cfm(conn, status);
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break;
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->connect_cfm)
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hp->connect_cfm(conn, status);
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case SCO_LINK:
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case ESCO_LINK:
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sco_connect_cfm(conn, status);
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break;
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->connect_cfm)
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hp->connect_cfm(conn, status);
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default:
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BT_ERR("unknown link type %d", conn->type);
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break;
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}
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if (conn->connect_cfm_cb)
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conn->connect_cfm_cb(conn, status);
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@ -731,31 +726,29 @@ static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
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static inline int hci_proto_disconn_ind(struct hci_conn *conn)
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{
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register struct hci_proto *hp;
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int reason = HCI_ERROR_REMOTE_USER_TERM;
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if (conn->type != ACL_LINK && conn->type != LE_LINK)
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return HCI_ERROR_REMOTE_USER_TERM;
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->disconn_ind)
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reason = hp->disconn_ind(conn);
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->disconn_ind)
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reason = hp->disconn_ind(conn);
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return reason;
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return l2cap_disconn_ind(conn);
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}
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static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
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{
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register struct hci_proto *hp;
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switch (conn->type) {
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case ACL_LINK:
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case LE_LINK:
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l2cap_disconn_cfm(conn, reason);
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break;
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->disconn_cfm)
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hp->disconn_cfm(conn, reason);
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case SCO_LINK:
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case ESCO_LINK:
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sco_disconn_cfm(conn, reason);
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break;
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->disconn_cfm)
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hp->disconn_cfm(conn, reason);
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default:
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BT_ERR("unknown link type %d", conn->type);
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break;
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}
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if (conn->disconn_cfm_cb)
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conn->disconn_cfm_cb(conn, reason);
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@ -763,21 +756,16 @@ static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
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static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
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{
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register struct hci_proto *hp;
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__u8 encrypt;
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if (conn->type != ACL_LINK && conn->type != LE_LINK)
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return;
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if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
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return;
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encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->security_cfm)
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hp->security_cfm(conn, status, encrypt);
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->security_cfm)
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hp->security_cfm(conn, status, encrypt);
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l2cap_security_cfm(conn, status, encrypt);
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if (conn->security_cfm_cb)
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conn->security_cfm_cb(conn, status);
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@ -786,23 +774,15 @@ static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
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static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
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__u8 encrypt)
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{
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register struct hci_proto *hp;
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if (conn->type != ACL_LINK && conn->type != LE_LINK)
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return;
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->security_cfm)
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hp->security_cfm(conn, status, encrypt);
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->security_cfm)
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hp->security_cfm(conn, status, encrypt);
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l2cap_security_cfm(conn, status, encrypt);
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if (conn->security_cfm_cb)
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conn->security_cfm_cb(conn, status);
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}
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int hci_register_proto(struct hci_proto *hproto);
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int hci_unregister_proto(struct hci_proto *hproto);
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/* ----- HCI callbacks ----- */
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struct hci_cb {
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struct list_head list;
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@ -69,10 +69,6 @@ DEFINE_RWLOCK(hci_dev_list_lock);
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LIST_HEAD(hci_cb_list);
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DEFINE_RWLOCK(hci_cb_list_lock);
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/* HCI protocols */
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#define HCI_MAX_PROTO 2
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struct hci_proto *hci_proto[HCI_MAX_PROTO];
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/* HCI notifiers list */
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static ATOMIC_NOTIFIER_HEAD(hci_notifier);
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@ -1830,43 +1826,6 @@ EXPORT_SYMBOL(hci_recv_stream_fragment);
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/* ---- Interface to upper protocols ---- */
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/* Register/Unregister protocols. */
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int hci_register_proto(struct hci_proto *hp)
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{
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int err = 0;
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BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
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if (hp->id >= HCI_MAX_PROTO)
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return -EINVAL;
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if (!hci_proto[hp->id])
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hci_proto[hp->id] = hp;
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else
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err = -EEXIST;
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return err;
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}
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EXPORT_SYMBOL(hci_register_proto);
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int hci_unregister_proto(struct hci_proto *hp)
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{
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int err = 0;
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BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
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if (hp->id >= HCI_MAX_PROTO)
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return -EINVAL;
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if (hci_proto[hp->id])
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hci_proto[hp->id] = NULL;
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else
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err = -ENOENT;
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return err;
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}
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EXPORT_SYMBOL(hci_unregister_proto);
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int hci_register_cb(struct hci_cb *cb)
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{
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BT_DBG("%p name %s", cb, cb->name);
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@ -2470,16 +2429,11 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
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hci_dev_unlock(hdev);
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if (conn) {
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register struct hci_proto *hp;
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hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);
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/* Send to upper protocol */
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hp = hci_proto[HCI_PROTO_L2CAP];
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if (hp && hp->recv_acldata) {
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hp->recv_acldata(conn, skb, flags);
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return;
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}
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l2cap_recv_acldata(conn, skb, flags);
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return;
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} else {
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BT_ERR("%s ACL packet for unknown connection handle %d",
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hdev->name, handle);
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@ -2508,14 +2462,9 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
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hci_dev_unlock(hdev);
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if (conn) {
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register struct hci_proto *hp;
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/* Send to upper protocol */
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hp = hci_proto[HCI_PROTO_SCO];
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if (hp && hp->recv_scodata) {
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hp->recv_scodata(conn, skb);
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return;
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}
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sco_recv_scodata(conn, skb);
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return;
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} else {
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BT_ERR("%s SCO packet for unknown connection handle %d",
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hdev->name, handle);
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@ -4413,14 +4413,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
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/* ---- L2CAP interface with lower layer (HCI) ---- */
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static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
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int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
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{
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int exact = 0, lm1 = 0, lm2 = 0;
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struct l2cap_chan *c;
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if (type != ACL_LINK)
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return -EINVAL;
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BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
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/* Find listening sockets and check their link_mode */
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@ -4447,15 +4444,12 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
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return exact ? lm1 : lm2;
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}
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static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
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int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
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{
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struct l2cap_conn *conn;
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BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
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if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
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return -EINVAL;
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if (!status) {
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conn = l2cap_conn_add(hcon, status);
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if (conn)
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@ -4466,27 +4460,22 @@ static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
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return 0;
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}
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static int l2cap_disconn_ind(struct hci_conn *hcon)
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int l2cap_disconn_ind(struct hci_conn *hcon)
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{
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struct l2cap_conn *conn = hcon->l2cap_data;
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BT_DBG("hcon %p", hcon);
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if ((hcon->type != ACL_LINK && hcon->type != LE_LINK) || !conn)
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if (!conn)
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return HCI_ERROR_REMOTE_USER_TERM;
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return conn->disc_reason;
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}
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static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
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int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
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{
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BT_DBG("hcon %p reason %d", hcon, reason);
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if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
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return -EINVAL;
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l2cap_conn_del(hcon, bt_to_errno(reason));
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return 0;
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}
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@ -4507,7 +4496,7 @@ static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt)
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}
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}
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static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
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int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
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{
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struct l2cap_conn *conn = hcon->l2cap_data;
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struct l2cap_chan *chan;
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@ -4607,7 +4596,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
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return 0;
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}
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static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
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int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
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{
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struct l2cap_conn *conn = hcon->l2cap_data;
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@ -4754,17 +4743,6 @@ static const struct file_operations l2cap_debugfs_fops = {
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static struct dentry *l2cap_debugfs;
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static struct hci_proto l2cap_hci_proto = {
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.name = "L2CAP",
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.id = HCI_PROTO_L2CAP,
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.connect_ind = l2cap_connect_ind,
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.connect_cfm = l2cap_connect_cfm,
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.disconn_ind = l2cap_disconn_ind,
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.disconn_cfm = l2cap_disconn_cfm,
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.security_cfm = l2cap_security_cfm,
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.recv_acldata = l2cap_recv_acldata
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};
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int __init l2cap_init(void)
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{
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int err;
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@ -4773,13 +4751,6 @@ int __init l2cap_init(void)
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if (err < 0)
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return err;
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err = hci_register_proto(&l2cap_hci_proto);
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if (err < 0) {
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BT_ERR("L2CAP protocol registration failed");
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bt_sock_unregister(BTPROTO_L2CAP);
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goto error;
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}
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if (bt_debugfs) {
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l2cap_debugfs = debugfs_create_file("l2cap", 0444,
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bt_debugfs, NULL, &l2cap_debugfs_fops);
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@ -4788,19 +4759,11 @@ int __init l2cap_init(void)
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}
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return 0;
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error:
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l2cap_cleanup_sockets();
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return err;
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}
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void l2cap_exit(void)
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{
|
||||
debugfs_remove(l2cap_debugfs);
|
||||
|
||||
if (hci_unregister_proto(&l2cap_hci_proto) < 0)
|
||||
BT_ERR("L2CAP protocol unregistration failed");
|
||||
|
||||
l2cap_cleanup_sockets();
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -893,15 +893,12 @@ done:
|
|||
}
|
||||
|
||||
/* ----- SCO interface with lower layer (HCI) ----- */
|
||||
static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
|
||||
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
|
||||
{
|
||||
register struct sock *sk;
|
||||
struct hlist_node *node;
|
||||
int lm = 0;
|
||||
|
||||
if (type != SCO_LINK && type != ESCO_LINK)
|
||||
return -EINVAL;
|
||||
|
||||
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
|
||||
|
||||
/* Find listening sockets */
|
||||
|
|
@ -921,13 +918,9 @@ static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
|
|||
return lm;
|
||||
}
|
||||
|
||||
static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
|
||||
int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
|
||||
{
|
||||
BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
|
||||
|
||||
if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
|
||||
return -EINVAL;
|
||||
|
||||
if (!status) {
|
||||
struct sco_conn *conn;
|
||||
|
||||
|
|
@ -940,19 +933,15 @@ static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
|
||||
int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
|
||||
{
|
||||
BT_DBG("hcon %p reason %d", hcon, reason);
|
||||
|
||||
if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
|
||||
return -EINVAL;
|
||||
|
||||
sco_conn_del(hcon, bt_to_errno(reason));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
|
||||
int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
|
||||
{
|
||||
struct sco_conn *conn = hcon->sco_data;
|
||||
|
||||
|
|
@ -1028,15 +1017,6 @@ static const struct net_proto_family sco_sock_family_ops = {
|
|||
.create = sco_sock_create,
|
||||
};
|
||||
|
||||
static struct hci_proto sco_hci_proto = {
|
||||
.name = "SCO",
|
||||
.id = HCI_PROTO_SCO,
|
||||
.connect_ind = sco_connect_ind,
|
||||
.connect_cfm = sco_connect_cfm,
|
||||
.disconn_cfm = sco_disconn_cfm,
|
||||
.recv_scodata = sco_recv_scodata
|
||||
};
|
||||
|
||||
int __init sco_init(void)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -1051,13 +1031,6 @@ int __init sco_init(void)
|
|||
goto error;
|
||||
}
|
||||
|
||||
err = hci_register_proto(&sco_hci_proto);
|
||||
if (err < 0) {
|
||||
BT_ERR("SCO protocol registration failed");
|
||||
bt_sock_unregister(BTPROTO_SCO);
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (bt_debugfs) {
|
||||
sco_debugfs = debugfs_create_file("sco", 0444,
|
||||
bt_debugfs, NULL, &sco_debugfs_fops);
|
||||
|
|
@ -1081,9 +1054,6 @@ void __exit sco_exit(void)
|
|||
if (bt_sock_unregister(BTPROTO_SCO) < 0)
|
||||
BT_ERR("SCO socket unregistration failed");
|
||||
|
||||
if (hci_unregister_proto(&sco_hci_proto) < 0)
|
||||
BT_ERR("SCO protocol unregistration failed");
|
||||
|
||||
proto_unregister(&sco_proto);
|
||||
}
|
||||
|
||||
|
|
|
|||
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