Commit 686ebf28 authored by Ulisses Furquim's avatar Ulisses Furquim Committed by Gustavo F. Padovan

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: default avatarUlisses Furquim <ulisses@profusion.mobi>
Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 68a8aea4
......@@ -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
......@@ -330,12 +326,24 @@ 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 */
......@@ -677,53 +685,40 @@ 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);
......@@ -731,31 +726,29 @@ 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;
if (conn->type != ACL_LINK && conn->type != LE_LINK)
return HCI_ERROR_REMOTE_USER_TERM;
hp = hci_proto[HCI_PROTO_L2CAP];
if (hp && hp->disconn_ind)
reason = hp->disconn_ind(conn);
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);
......@@ -763,21 +756,16 @@ 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);
......@@ -786,23 +774,15 @@ 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;
......
......@@ -69,10 +69,6 @@ DEFINE_RWLOCK(hci_dev_list_lock);
LIST_HEAD(hci_cb_list);
DEFINE_RWLOCK(hci_cb_list_lock);
/* HCI protocols */
#define HCI_MAX_PROTO 2
struct hci_proto *hci_proto[HCI_MAX_PROTO];
/* HCI notifiers list */
static ATOMIC_NOTIFIER_HEAD(hci_notifier);
......@@ -1830,43 +1826,6 @@ EXPORT_SYMBOL(hci_recv_stream_fragment);
/* ---- Interface to upper protocols ---- */
/* Register/Unregister protocols. */
int hci_register_proto(struct hci_proto *hp)
{
int err = 0;
BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
if (hp->id >= HCI_MAX_PROTO)
return -EINVAL;
if (!hci_proto[hp->id])
hci_proto[hp->id] = hp;
else
err = -EEXIST;
return err;
}
EXPORT_SYMBOL(hci_register_proto);
int hci_unregister_proto(struct hci_proto *hp)
{
int err = 0;
BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
if (hp->id >= HCI_MAX_PROTO)
return -EINVAL;
if (hci_proto[hp->id])
hci_proto[hp->id] = NULL;
else
err = -ENOENT;
return err;
}
EXPORT_SYMBOL(hci_unregister_proto);
int hci_register_cb(struct hci_cb *cb)
{
BT_DBG("%p name %s", cb, cb->name);
......@@ -2470,16 +2429,11 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
hci_dev_unlock(hdev);
if (conn) {
register struct hci_proto *hp;
hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);
/* Send to upper protocol */
hp = hci_proto[HCI_PROTO_L2CAP];
if (hp && hp->recv_acldata) {
hp->recv_acldata(conn, skb, flags);
return;
}
l2cap_recv_acldata(conn, skb, flags);
return;
} else {
BT_ERR("%s ACL packet for unknown connection handle %d",
hdev->name, handle);
......@@ -2508,14 +2462,9 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
hci_dev_unlock(hdev);
if (conn) {
register struct hci_proto *hp;
/* Send to upper protocol */
hp = hci_proto[HCI_PROTO_SCO];
if (hp && hp->recv_scodata) {
hp->recv_scodata(conn, skb);
return;
}
sco_recv_scodata(conn, skb);
return;
} else {
BT_ERR("%s SCO packet for unknown connection handle %d",
hdev->name, handle);
......
......@@ -4413,14 +4413,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
/* ---- L2CAP interface with lower layer (HCI) ---- */
static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
int exact = 0, lm1 = 0, lm2 = 0;
struct l2cap_chan *c;
if (type != ACL_LINK)
return -EINVAL;
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
/* Find listening sockets and check their link_mode */
......@@ -4447,15 +4444,12 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
return exact ? lm1 : lm2;
}
static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
{
struct l2cap_conn *conn;
BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
return -EINVAL;
if (!status) {
conn = l2cap_conn_add(hcon, status);
if (conn)
......@@ -4466,27 +4460,22 @@ static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
return 0;
}
static int l2cap_disconn_ind(struct hci_conn *hcon)
int l2cap_disconn_ind(struct hci_conn *hcon)
{
struct l2cap_conn *conn = hcon->l2cap_data;
BT_DBG("hcon %p", hcon);
if ((hcon->type != ACL_LINK && hcon->type != LE_LINK) || !conn)
if (!conn)
return HCI_ERROR_REMOTE_USER_TERM;
return conn->disc_reason;
}
static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
{
BT_DBG("hcon %p reason %d", hcon, reason);
if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
return -EINVAL;
l2cap_conn_del(hcon, bt_to_errno(reason));
return 0;
}
......@@ -4507,7 +4496,7 @@ static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt)
}
}
static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
{
struct l2cap_conn *conn = hcon->l2cap_data;
struct l2cap_chan *chan;
......@@ -4607,7 +4596,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
return 0;
}
static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
{
struct l2cap_conn *conn = hcon->l2cap_data;
......@@ -4754,17 +4743,6 @@ static const struct file_operations l2cap_debugfs_fops = {
static struct dentry *l2cap_debugfs;
static struct hci_proto l2cap_hci_proto = {
.name = "L2CAP",
.id = HCI_PROTO_L2CAP,
.connect_ind = l2cap_connect_ind,
.connect_cfm = l2cap_connect_cfm,
.disconn_ind = l2cap_disconn_ind,
.disconn_cfm = l2cap_disconn_cfm,
.security_cfm = l2cap_security_cfm,
.recv_acldata = l2cap_recv_acldata
};
int __init l2cap_init(void)
{
int err;
......@@ -4773,13 +4751,6 @@ int __init l2cap_init(void)
if (err < 0)
return err;
err = hci_register_proto(&l2cap_hci_proto);
if (err < 0) {
BT_ERR("L2CAP protocol registration failed");
bt_sock_unregister(BTPROTO_L2CAP);
goto error;
}
if (bt_debugfs) {
l2cap_debugfs = debugfs_create_file("l2cap", 0444,
bt_debugfs, NULL, &l2cap_debugfs_fops);
......@@ -4788,19 +4759,11 @@ int __init l2cap_init(void)
}
return 0;
error:
l2cap_cleanup_sockets();
return err;
}
void l2cap_exit(void)
{
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);
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment