From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
This patch converts the Set Secure Connection HCI handling to use a HCI
request instead of using a hard-coded callback in hci_event.c. This e.g.
ensures that we don't clear the flags incorrectly if something goes
wrong with the power up process (not related to a mgmt Set SC command).
The code can also be simplified a bit since only one pending Set SC
command is allowed, i.e. mgmt_pending_foreach usage is not needed.
Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 1 -
net/bluetooth/hci_event.c | 4 +-
net/bluetooth/mgmt.c | 92 +++++++++++++++++++++-------------------
3 files changed, 50 insertions(+), 47 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7777124bff55..0f5e59f1e3cb 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1369,7 +1369,6 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
void mgmt_auth_failed(struct hci_conn *conn, u8 status);
void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
-void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
u8 status);
void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a58845e98921..e2b81adc232f 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -525,9 +525,7 @@ static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
hdev->features[1][0] &= ~LMP_HOST_SC;
}
- if (test_bit(HCI_MGMT, &hdev->dev_flags))
- mgmt_sc_enable_complete(hdev, sent->support, status);
- else if (!status) {
+ if (!test_bit(HCI_MGMT, &hdev->dev_flags) && !status) {
if (sent->support)
set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
else
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 862a005d9db2..25e40e82b9a2 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4741,11 +4741,57 @@ unlock:
return err;
}
+static void sc_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
+{
+ struct pending_cmd *cmd;
+ struct mgmt_mode *cp;
+
+ BT_DBG("%s status %u", hdev->name, status);
+
+ hci_dev_lock(hdev);
+
+ cmd = mgmt_pending_find(MGMT_OP_SET_SECURE_CONN, hdev);
+ if (!cmd)
+ goto unlock;
+
+ if (status) {
+ cmd_status(cmd->sk, cmd->index, cmd->opcode,
+ mgmt_status(status));
+ goto remove;
+ }
+
+ cp = cmd->param;
+
+ switch (cp->val) {
+ case 0x00:
+ clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
+ clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
+ break;
+ case 0x01:
+ set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
+ clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
+ break;
+ case 0x02:
+ set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
+ set_bit(HCI_SC_ONLY, &hdev->dev_flags);
+ break;
+ }
+
+ send_settings_rsp(cmd->sk, MGMT_OP_SET_SECURE_CONN, hdev);
+ new_settings(hdev, cmd->sk);
+
+remove:
+ mgmt_pending_remove(cmd);
+unlock:
+ hci_dev_unlock(hdev);
+}
+
static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
void *data, u16 len)
{
struct mgmt_mode *cp = data;
struct pending_cmd *cmd;
+ struct hci_request req;
u8 val;
int err;
@@ -4814,17 +4860,14 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
goto failed;
}
- err = hci_send_cmd(hdev, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
+ hci_req_init(&req, hdev);
+ hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
+ err = hci_req_run(&req, sc_enable_complete);
if (err < 0) {
mgmt_pending_remove(cmd);
goto failed;
}
- if (cp->val == 0x02)
- set_bit(HCI_SC_ONLY, &hdev->dev_flags);
- else
- clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
-
failed:
hci_dev_unlock(hdev);
return err;
@@ -7001,43 +7044,6 @@ void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
hci_req_run(&req, NULL);
}
-void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
-{
- struct cmd_lookup match = { NULL, hdev };
- bool changed = false;
-
- if (status) {
- u8 mgmt_err = mgmt_status(status);
-
- if (enable) {
- if (test_and_clear_bit(HCI_SC_ENABLED,
- &hdev->dev_flags))
- new_settings(hdev, NULL);
- clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
- }
-
- mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev,
- cmd_status_rsp, &mgmt_err);
- return;
- }
-
- if (enable) {
- changed = !test_and_set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
- } else {
- changed = test_and_clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
- clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
- }
-
- mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev,
- settings_rsp, &match);
-
- if (changed)
- new_settings(hdev, match.sk);
-
- if (match.sk)
- sock_put(match.sk);
-}
-
static void sk_lookup(struct pending_cmd *cmd, void *data)
{
struct cmd_lookup *match = data;
--
2.1.0
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