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[Bluetooth] Retrieve L2CAP features mask on connection setup

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The Bluetooth 1.2 specification introduced a specific features mask
value to interoperate with newer versions of the specification. So far
this piece of information was never needed, but future extensions will
rely on it. This patch adds a generic way to retrieve this information
only once per connection setup.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann
2007-10-20 13:37:56 +02:00
committed by David S. Miller
parent 861d6882b3
commit 4e8402a3f8
2 changed files with 163 additions and 84 deletions
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14
include/net/bluetooth/l2cap.h
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@@ -29,7 +29,8 @@
#define L2CAP_DEFAULT_MTU 672
#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
#define L2CAP_CONN_TIMEOUT (HZ * 40)
#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
/* L2CAP socket address */
struct sockaddr_l2 {
@@ -160,7 +161,6 @@ struct l2cap_disconn_rsp {
struct l2cap_info_req {
__le16 type;
__u8 data[0];
} __attribute__ ((packed));
struct l2cap_info_rsp {
@@ -192,6 +192,13 @@ struct l2cap_conn {
unsigned int mtu;
__u32 feat_mask;
__u8 info_state;
__u8 info_ident;
struct timer_list info_timer;
spinlock_t lock;
struct sk_buff *rx_skb;
@@ -202,6 +209,9 @@ struct l2cap_conn {
struct l2cap_chan_list chan_list;
};
#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x02
/* ----- L2CAP channel and socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)