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Bluetooth: Convert HCI_CONN_MASTER flag to a conn->role variable

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Having a dedicated u8 role variable in the hci_conn struct greatly
simplifies tracking of the role, since this is the native way that it's
represented on the HCI level.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-07-16 11:42:27 +03:00 committed by Marcel Holtmann
parent ba165a90b5
commit 40bef302f6
5 changed files with 24 additions and 34 deletions
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2
include/net/bluetooth/hci_core.h
View File

@ -371,6 +371,7 @@ struct hci_conn {
__u16 state;
__u8 mode;
__u8 type;
__u8 role;
bool out;
__u8 attempt;
__u8 dev_class[3];
@ -540,7 +541,6 @@ enum {
HCI_CONN_POWER_SAVE,
HCI_CONN_REMOTE_OOB,
HCI_CONN_FLUSH_KEY,
HCI_CONN_MASTER,
HCI_CONN_ENCRYPT,
HCI_CONN_AUTH,
HCI_CONN_SECURE,

13
net/bluetooth/hci_conn.c
View File

@ -66,8 +66,7 @@ static void hci_acl_create_connection(struct hci_conn *conn)
conn->state = BT_CONNECT;
conn->out = true;
set_bit(HCI_CONN_MASTER, &conn->flags);
conn->role = HCI_ROLE_MASTER;
conn->attempt++;
@ -335,7 +334,7 @@ static void hci_conn_timeout(struct work_struct *work)
* event handling and hci_clock_offset_evt function.
*/
if (conn->type == ACL_LINK &&
test_bit(HCI_CONN_MASTER, &conn->flags)) {
conn->role == HCI_ROLE_MASTER) {
struct hci_dev *hdev = conn->hdev;
struct hci_cp_read_clock_offset cp;
@ -786,8 +785,8 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
goto create_conn;
}
conn->out = true;
set_bit(HCI_CONN_MASTER, &conn->flags);
conn->out = true;
conn->role = HCI_ROLE_MASTER;
params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
if (params) {
@ -1076,7 +1075,7 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
{
BT_DBG("hcon %p", conn);
if (!role && test_bit(HCI_CONN_MASTER, &conn->flags))
if (role == conn->role)
return 1;
if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) {
@ -1151,7 +1150,7 @@ static u32 get_link_mode(struct hci_conn *conn)
{
u32 link_mode = 0;
if (test_bit(HCI_CONN_MASTER, &conn->flags))
if (conn->role == HCI_ROLE_MASTER)
link_mode |= HCI_LM_MASTER;
if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))

27
net/bluetooth/hci_event.c
View File

@ -101,12 +101,8 @@ static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
if (conn) {
if (rp->role)
clear_bit(HCI_CONN_MASTER, &conn->flags);
else
set_bit(HCI_CONN_MASTER, &conn->flags);
}
if (conn)
conn->role = rp->role;
hci_dev_unlock(hdev);
}
@ -1420,8 +1416,8 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
if (!conn) {
conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
if (conn) {
conn->out = true;
set_bit(HCI_CONN_MASTER, &conn->flags);
conn->out = true;
conn->role = HCI_ROLE_MASTER;
} else
BT_ERR("No memory for new connection");
}
@ -2924,12 +2920,8 @@ static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
if (conn) {
if (!ev->status) {
if (ev->role)
clear_bit(HCI_CONN_MASTER, &conn->flags);
else
set_bit(HCI_CONN_MASTER, &conn->flags);
}
if (!ev->status)
conn->role = ev->role;
clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
@ -4116,10 +4108,9 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn->dst_type = ev->bdaddr_type;
if (ev->role == HCI_ROLE_MASTER) {
conn->role = ev->role;
if (conn->role == HCI_ROLE_MASTER)
conn->out = true;
set_bit(HCI_CONN_MASTER, &conn->flags);
}
/* If we didn't have a hci_conn object previously
* but we're in master role this must be something
@ -4527,7 +4518,7 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
return send_conn_param_neg_reply(hdev, handle,
HCI_ERROR_INVALID_LL_PARAMS);
if (test_bit(HCI_CONN_MASTER, &hcon->flags)) {
if (hcon->role == HCI_ROLE_MASTER) {
struct hci_conn_params *params;
u8 store_hint;

4
net/bluetooth/l2cap_core.c
View File

@ -1487,7 +1487,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
* been configured for this connection. If not, then trigger
* the connection update procedure.
*/
if (!test_bit(HCI_CONN_MASTER, &hcon->flags) &&
if (hcon->role == HCI_ROLE_SLAVE &&
(hcon->le_conn_interval < hcon->le_conn_min_interval ||
hcon->le_conn_interval > hcon->le_conn_max_interval)) {
struct l2cap_conn_param_update_req req;
@ -5227,7 +5227,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
u16 min, max, latency, to_multiplier;
int err;
if (!test_bit(HCI_CONN_MASTER, &hcon->flags))
if (hcon->role != HCI_ROLE_MASTER)
return -EINVAL;
if (cmd_len != sizeof(struct l2cap_conn_param_update_req))

12
net/bluetooth/smp.c
View File

@ -445,7 +445,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
* Confirms and the slave Enters the passkey.
*/
if (method == OVERLAP) {
if (test_bit(HCI_CONN_MASTER, &hcon->flags))
if (hcon->role == HCI_ROLE_MASTER)
method = CFM_PASSKEY;
else
method = REQ_PASSKEY;
@ -686,7 +686,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (skb->len < sizeof(*req))
return SMP_INVALID_PARAMS;
if (test_bit(HCI_CONN_MASTER, &conn->hcon->flags))
if (conn->hcon->role != HCI_ROLE_SLAVE)
return SMP_CMD_NOTSUPP;
if (!test_and_set_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
@ -755,7 +755,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
if (skb->len < sizeof(*rsp))
return SMP_INVALID_PARAMS;
if (!test_bit(HCI_CONN_MASTER, &conn->hcon->flags))
if (conn->hcon->role != HCI_ROLE_MASTER)
return SMP_CMD_NOTSUPP;
skb_pull(skb, sizeof(*rsp));
@ -903,7 +903,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (skb->len < sizeof(*rp))
return SMP_INVALID_PARAMS;
if (!test_bit(HCI_CONN_MASTER, &conn->hcon->flags))
if (hcon->role != HCI_ROLE_MASTER)
return SMP_CMD_NOTSUPP;
sec_level = authreq_to_seclevel(rp->auth_req);
@ -961,7 +961,7 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
if (sec_level > hcon->pending_sec_level)
hcon->pending_sec_level = sec_level;
if (test_bit(HCI_CONN_MASTER, &hcon->flags))
if (hcon->role == HCI_ROLE_MASTER)
if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
return 0;
@ -981,7 +981,7 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
hcon->pending_sec_level > BT_SECURITY_MEDIUM)
authreq |= SMP_AUTH_MITM;
if (test_bit(HCI_CONN_MASTER, &hcon->flags)) {
if (hcon->role == HCI_ROLE_MASTER) {
struct smp_cmd_pairing cp;
build_pairing_cmd(conn, &cp, NULL, authreq);