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Diffstat (limited to 'net/bluetooth/hci_conn.c')
-rw-r--r--net/bluetooth/hci_conn.c75
1 files changed, 36 insertions, 39 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 3db432473ad..947172bf162 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -35,7 +35,6 @@
#include <linux/init.h>
#include <linux/skbuff.h>
#include <linux/interrupt.h>
-#include <linux/notifier.h>
#include <net/sock.h>
#include <asm/system.h>
@@ -51,7 +50,7 @@ static void hci_le_connect(struct hci_conn *conn)
struct hci_cp_le_create_conn cp;
conn->state = BT_CONNECT;
- conn->out = 1;
+ conn->out = true;
conn->link_mode |= HCI_LM_MASTER;
conn->sec_level = BT_SECURITY_LOW;
@@ -80,10 +79,10 @@ void hci_acl_connect(struct hci_conn *conn)
struct inquiry_entry *ie;
struct hci_cp_create_conn cp;
- BT_DBG("%p", conn);
+ BT_DBG("hcon %p", conn);
conn->state = BT_CONNECT;
- conn->out = 1;
+ conn->out = true;
conn->link_mode = HCI_LM_MASTER;
@@ -105,7 +104,8 @@ void hci_acl_connect(struct hci_conn *conn)
}
memcpy(conn->dev_class, ie->data.dev_class, 3);
- conn->ssp_mode = ie->data.ssp_mode;
+ if (ie->data.ssp_mode > 0)
+ set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
}
cp.pkt_type = cpu_to_le16(conn->pkt_type);
@@ -151,7 +151,7 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
BT_DBG("%p", conn);
conn->state = BT_CONNECT;
- conn->out = 1;
+ conn->out = true;
conn->attempt++;
@@ -169,7 +169,7 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
BT_DBG("%p", conn);
conn->state = BT_CONNECT;
- conn->out = 1;
+ conn->out = true;
conn->attempt++;
@@ -279,16 +279,13 @@ static void hci_conn_timeout(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
disc_work.work);
- struct hci_dev *hdev = conn->hdev;
__u8 reason;
- BT_DBG("conn %p state %d", conn, conn->state);
+ BT_DBG("conn %p state %s", conn, state_to_string(conn->state));
if (atomic_read(&conn->refcnt))
return;
- hci_dev_lock(hdev);
-
switch (conn->state) {
case BT_CONNECT:
case BT_CONNECT2:
@@ -308,8 +305,6 @@ static void hci_conn_timeout(struct work_struct *work)
conn->state = BT_CLOSED;
break;
}
-
- hci_dev_unlock(hdev);
}
/* Enter sniff mode */
@@ -337,7 +332,7 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
}
- if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
struct hci_cp_sniff_mode cp;
cp.handle = cpu_to_le16(conn->handle);
cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
@@ -372,7 +367,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
BT_DBG("%s dst %s", hdev->name, batostr(dst));
- conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC);
+ conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL);
if (!conn)
return NULL;
@@ -386,7 +381,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
conn->remote_auth = 0xff;
conn->key_type = 0xff;
- conn->power_save = 1;
+ set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
switch (type) {
@@ -407,7 +402,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
skb_queue_head_init(&conn->data_q);
- INIT_LIST_HEAD(&conn->chan_list);;
+ INIT_LIST_HEAD(&conn->chan_list);
INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
@@ -555,7 +550,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
if (!acl) {
acl = hci_conn_add(hdev, ACL_LINK, dst);
if (!acl)
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
hci_conn_hold(acl);
@@ -575,7 +570,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
sco = hci_conn_add(hdev, type, dst);
if (!sco) {
hci_conn_put(acl);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
}
@@ -586,12 +581,12 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
if (acl->state == BT_CONNECTED &&
(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
- acl->power_save = 1;
+ set_bit(HCI_CONN_POWER_SAVE, &acl->flags);
hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON);
- if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->pend)) {
+ if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->flags)) {
/* defer SCO setup until mode change completed */
- set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->pend);
+ set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->flags);
return sco;
}
@@ -607,8 +602,7 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
{
BT_DBG("conn %p", conn);
- if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0 &&
- !(conn->link_mode & HCI_LM_ENCRYPT))
+ if (hci_conn_ssp_enabled(conn) && !(conn->link_mode & HCI_LM_ENCRYPT))
return 0;
return 1;
@@ -633,13 +627,17 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
conn->auth_type = auth_type;
- if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
struct hci_cp_auth_requested cp;
+
+ /* encrypt must be pending if auth is also pending */
+ set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
sizeof(cp), &cp);
if (conn->key_type != 0xff)
- set_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
+ set_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
}
return 0;
@@ -650,7 +648,7 @@ static void hci_conn_encrypt(struct hci_conn *conn)
{
BT_DBG("conn %p", conn);
- if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
struct hci_cp_set_conn_encrypt cp;
cp.handle = cpu_to_le16(conn->handle);
cp.encrypt = 0x01;
@@ -670,8 +668,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
/* For non 2.1 devices and low security level we don't need the link
key. */
- if (sec_level == BT_SECURITY_LOW &&
- (!conn->ssp_mode || !conn->hdev->ssp_mode))
+ if (sec_level == BT_SECURITY_LOW && !hci_conn_ssp_enabled(conn))
return 1;
/* For other security levels we need the link key. */
@@ -700,7 +697,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
goto encrypt;
auth:
- if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+ if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
return 0;
if (!hci_conn_auth(conn, sec_level, auth_type))
@@ -735,7 +732,7 @@ int hci_conn_change_link_key(struct hci_conn *conn)
{
BT_DBG("conn %p", conn);
- if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
struct hci_cp_change_conn_link_key cp;
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
@@ -754,7 +751,7 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
if (!role && conn->link_mode & HCI_LM_MASTER)
return 1;
- if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) {
struct hci_cp_switch_role cp;
bacpy(&cp.bdaddr, &conn->dst);
cp.role = role;
@@ -778,10 +775,10 @@ void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active)
if (conn->mode != HCI_CM_SNIFF)
goto timer;
- if (!conn->power_save && !force_active)
+ if (!test_bit(HCI_CONN_POWER_SAVE, &conn->flags) && !force_active)
goto timer;
- if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+ if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
struct hci_cp_exit_sniff_mode cp;
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp);
@@ -797,11 +794,11 @@ timer:
void hci_conn_hash_flush(struct hci_dev *hdev)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- struct hci_conn *c;
+ struct hci_conn *c, *n;
BT_DBG("hdev %s", hdev->name);
- list_for_each_entry_rcu(c, &h->list, list) {
+ list_for_each_entry_safe(c, n, &h->list, list) {
c->state = BT_CLOSED;
hci_proto_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM);
@@ -946,7 +943,7 @@ struct hci_chan *hci_chan_create(struct hci_conn *conn)
BT_DBG("%s conn %p", hdev->name, conn);
- chan = kzalloc(sizeof(struct hci_chan), GFP_ATOMIC);
+ chan = kzalloc(sizeof(struct hci_chan), GFP_KERNEL);
if (!chan)
return NULL;
@@ -977,10 +974,10 @@ int hci_chan_del(struct hci_chan *chan)
void hci_chan_list_flush(struct hci_conn *conn)
{
- struct hci_chan *chan;
+ struct hci_chan *chan, *n;
BT_DBG("conn %p", conn);
- list_for_each_entry_rcu(chan, &conn->chan_list, list)
+ list_for_each_entry_safe(chan, n, &conn->chan_list, list)
hci_chan_del(chan);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-16 09:52:38 +0000