From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
Instead of having an explicit service cache command we can make the mgmt
API simpler by implicitly enabling the cache when mgmt_read_info is
called for the first time and disabiling it when mgmt_set_dev_class is
called.
Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 4 +++
include/net/bluetooth/mgmt.h | 5 ---
net/bluetooth/hci_sock.c | 7 +++-
net/bluetooth/mgmt.c | 56 +++++---------------------------------
4 files changed, 16 insertions(+), 56 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e34cd71..4e67bb8 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -958,12 +958,16 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
+/* HCI socket flags */
+#define HCI_PI_MGMT_INIT 0
+
struct hci_pinfo {
struct bt_sock bt;
struct hci_dev *hdev;
struct hci_filter filter;
__u32 cmsg_mask;
unsigned short channel;
+ unsigned long flags;
};
/* HCI security filter */
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index bf217cc..bdb0a58 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -121,11 +121,6 @@ struct mgmt_cp_set_dev_class {
__u8 minor;
} __packed;
-#define MGMT_OP_SET_SERVICE_CACHE 0x000C
-struct mgmt_cp_set_service_cache {
- __u8 enable;
-} __packed;
-
struct mgmt_link_key_info {
bdaddr_t bdaddr;
u8 type;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index f6afe3d..47febe8 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -343,8 +343,11 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
if (haddr.hci_channel > HCI_CHANNEL_CONTROL)
return -EINVAL;
- if (haddr.hci_channel == HCI_CHANNEL_CONTROL && !enable_mgmt)
- return -EINVAL;
+ if (haddr.hci_channel == HCI_CHANNEL_CONTROL) {
+ if (!enable_mgmt)
+ return -EINVAL;
+ set_bit(HCI_PI_MGMT_INIT, &hci_pi(sk)->flags);
+ }
lock_sock(sk);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 54092c2..25e7bf9 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -316,7 +316,10 @@ static int read_controller_info(struct sock *sk, u16 index)
hci_dev_lock_bh(hdev);
- set_bit(HCI_MGMT, &hdev->flags);
+ if (test_and_clear_bit(HCI_PI_MGMT_INIT, &hci_pi(sk)->flags)) {
+ set_bit(HCI_MGMT, &hdev->flags);
+ set_bit(HCI_SERVICE_CACHE, &hdev->flags);
+ }
memset(&rp, 0, sizeof(rp));
@@ -989,6 +992,9 @@ static int set_dev_class(struct sock *sk, u16 index, unsigned char *data,
hdev->major_class = cp->major;
hdev->minor_class = cp->minor;
+ if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->flags))
+ update_eir(hdev);
+
err = update_class(hdev);
if (err == 0)
@@ -1000,51 +1006,6 @@ static int set_dev_class(struct sock *sk, u16 index, unsigned char *data,
return err;
}
-static int set_service_cache(struct sock *sk, u16 index, unsigned char *data,
- u16 len)
-{
- struct hci_dev *hdev;
- struct mgmt_cp_set_service_cache *cp;
- int err;
-
- cp = (void *) data;
-
- if (len != sizeof(*cp))
- return cmd_status(sk, index, MGMT_OP_SET_SERVICE_CACHE,
- MGMT_STATUS_INVALID_PARAMS);
-
- hdev = hci_dev_get(index);
- if (!hdev)
- return cmd_status(sk, index, MGMT_OP_SET_SERVICE_CACHE,
- MGMT_STATUS_INVALID_PARAMS);
-
- hci_dev_lock_bh(hdev);
-
- BT_DBG("hci%u enable %d", index, cp->enable);
-
- if (cp->enable) {
- set_bit(HCI_SERVICE_CACHE, &hdev->flags);
- err = 0;
- } else {
- clear_bit(HCI_SERVICE_CACHE, &hdev->flags);
- err = update_class(hdev);
- if (err == 0)
- err = update_eir(hdev);
- }
-
- if (err == 0)
- err = cmd_complete(sk, index, MGMT_OP_SET_SERVICE_CACHE, NULL,
- 0);
- else
- cmd_status(sk, index, MGMT_OP_SET_SERVICE_CACHE, -err);
-
-
- hci_dev_unlock_bh(hdev);
- hci_dev_put(hdev);
-
- return err;
-}
-
static int load_link_keys(struct sock *sk, u16 index, unsigned char *data,
u16 len)
{
@@ -2170,9 +2131,6 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
case MGMT_OP_SET_DEV_CLASS:
err = set_dev_class(sk, index, buf + sizeof(*hdr), len);
break;
- case MGMT_OP_SET_SERVICE_CACHE:
- err = set_service_cache(sk, index, buf + sizeof(*hdr), len);
- break;
case MGMT_OP_LOAD_LINK_KEYS:
err = load_link_keys(sk, index, buf + sizeof(*hdr), len);
break;
--
1.7.7.3
--
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