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Diffstat (limited to 'include/net/bluetooth/l2cap.h')
-rw-r--r--include/net/bluetooth/l2cap.h225
1 files changed, 137 insertions, 88 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index c819c8bf9b68..d09c9b1118e3 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -1,4 +1,4 @@
-/*
+/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2000-2001 Qualcomm Incorporated
Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
@@ -14,13 +14,13 @@
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
@@ -38,6 +38,7 @@
#define L2CAP_DEFAULT_MAX_PDU_SIZE 1009 /* Sized for 3-DH5 packet */
#define L2CAP_DEFAULT_ACK_TO 200
#define L2CAP_LOCAL_BUSY_TRIES 12
+#define L2CAP_LE_DEFAULT_MTU 23
#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
@@ -88,6 +89,8 @@ struct l2cap_conninfo {
#define L2CAP_ECHO_RSP 0x09
#define L2CAP_INFO_REQ 0x0a
#define L2CAP_INFO_RSP 0x0b
+#define L2CAP_CONN_PARAM_UPDATE_REQ 0x12
+#define L2CAP_CONN_PARAM_UPDATE_RSP 0x13
/* L2CAP feature mask */
#define L2CAP_FEAT_FLOWCTL 0x00000001
@@ -160,6 +163,9 @@ struct l2cap_conn_rsp {
/* channel indentifier */
#define L2CAP_CID_SIGNALING 0x0001
#define L2CAP_CID_CONN_LESS 0x0002
+#define L2CAP_CID_LE_DATA 0x0004
+#define L2CAP_CID_LE_SIGNALING 0x0005
+#define L2CAP_CID_SMP 0x0006
#define L2CAP_CID_DYN_START 0x0040
#define L2CAP_CID_DYN_END 0xffff
@@ -255,63 +261,32 @@ struct l2cap_info_rsp {
#define L2CAP_IR_SUCCESS 0x0000
#define L2CAP_IR_NOTSUPP 0x0001
-/* ----- L2CAP connections ----- */
-struct l2cap_chan_list {
- struct sock *head;
- rwlock_t lock;
- long num;
-};
-
-struct l2cap_conn {
- struct hci_conn *hcon;
-
- bdaddr_t *dst;
- bdaddr_t *src;
-
- 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;
- __u32 rx_len;
- __u8 rx_ident;
- __u8 tx_ident;
-
- __u8 disc_reason;
-
- struct l2cap_chan_list chan_list;
-};
-
-struct sock_del_list {
- struct sock *sk;
- struct list_head list;
-};
+struct l2cap_conn_param_update_req {
+ __le16 min;
+ __le16 max;
+ __le16 latency;
+ __le16 to_multiplier;
+} __packed;
-#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
-#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
-#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
+struct l2cap_conn_param_update_rsp {
+ __le16 result;
+} __packed;
-/* ----- L2CAP channel and socket info ----- */
-#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
-#define TX_QUEUE(sk) (&l2cap_pi(sk)->tx_queue)
-#define SREJ_QUEUE(sk) (&l2cap_pi(sk)->srej_queue)
-#define BUSY_QUEUE(sk) (&l2cap_pi(sk)->busy_queue)
-#define SREJ_LIST(sk) (&l2cap_pi(sk)->srej_l.list)
+/* Connection Parameters result */
+#define L2CAP_CONN_PARAM_ACCEPTED 0x0000
+#define L2CAP_CONN_PARAM_REJECTED 0x0001
+/* ----- L2CAP channels and connections ----- */
struct srej_list {
__u8 tx_seq;
struct list_head list;
};
-struct l2cap_pinfo {
- struct bt_sock bt;
+struct l2cap_chan {
+ struct sock *sk;
+
+ struct l2cap_conn *conn;
+
__le16 psm;
__u16 dcid;
__u16 scid;
@@ -320,16 +295,29 @@ struct l2cap_pinfo {
__u16 omtu;
__u16 flush_to;
__u8 mode;
- __u8 num_conf_req;
- __u8 num_conf_rsp;
- __u8 fcs;
+ __le16 sport;
+
__u8 sec_level;
__u8 role_switch;
__u8 force_reliable;
+ __u8 flushable;
+
+ __u8 ident;
__u8 conf_req[64];
__u8 conf_len;
+ __u8 num_conf_req;
+ __u8 num_conf_rsp;
+
+ __u8 fcs;
+
+ __u8 tx_win;
+ __u8 max_tx;
+ __u16 retrans_timeout;
+ __u16 monitor_timeout;
+ __u16 mps;
+
__u8 conf_state;
__u16 conn_state;
@@ -347,30 +335,61 @@ struct l2cap_pinfo {
__u16 partial_sdu_len;
struct sk_buff *sdu;
- __u8 ident;
-
- __u8 tx_win;
- __u8 max_tx;
__u8 remote_tx_win;
__u8 remote_max_tx;
- __u16 retrans_timeout;
- __u16 monitor_timeout;
__u16 remote_mps;
- __u16 mps;
-
- __le16 sport;
struct timer_list retrans_timer;
struct timer_list monitor_timer;
struct timer_list ack_timer;
- struct sk_buff_head tx_queue;
- struct sk_buff_head srej_queue;
- struct sk_buff_head busy_queue;
+ struct sk_buff *tx_send_head;
+ struct sk_buff_head tx_q;
+ struct sk_buff_head srej_q;
+ struct sk_buff_head busy_q;
struct work_struct busy_work;
- struct srej_list srej_l;
- struct l2cap_conn *conn;
- struct sock *next_c;
- struct sock *prev_c;
+ struct list_head srej_l;
+
+ struct list_head list;
+ struct list_head global_l;
+};
+
+struct l2cap_conn {
+ struct hci_conn *hcon;
+
+ bdaddr_t *dst;
+ bdaddr_t *src;
+
+ 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;
+ __u32 rx_len;
+ __u8 tx_ident;
+
+ __u8 disc_reason;
+
+ struct list_head chan_l;
+ rwlock_t chan_lock;
+};
+
+#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
+#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
+#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
+
+/* ----- L2CAP socket info ----- */
+#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
+
+struct l2cap_pinfo {
+ struct bt_sock bt;
+ struct l2cap_chan *chan;
};
#define L2CAP_CONF_REQ_SENT 0x01
@@ -397,32 +416,62 @@ struct l2cap_pinfo {
#define L2CAP_CONN_RNR_SENT 0x0200
#define L2CAP_CONN_SAR_RETRY 0x0400
-#define __mod_retrans_timer() mod_timer(&l2cap_pi(sk)->retrans_timer, \
+#define __mod_retrans_timer() mod_timer(&chan->retrans_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));
-#define __mod_monitor_timer() mod_timer(&l2cap_pi(sk)->monitor_timer, \
+#define __mod_monitor_timer() mod_timer(&chan->monitor_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO));
-#define __mod_ack_timer() mod_timer(&l2cap_pi(sk)->ack_timer, \
+#define __mod_ack_timer() mod_timer(&chan->ack_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO));
-static inline int l2cap_tx_window_full(struct sock *sk)
+static inline int l2cap_tx_window_full(struct l2cap_chan *ch)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
int sub;
- sub = (pi->next_tx_seq - pi->expected_ack_seq) % 64;
+ sub = (ch->next_tx_seq - ch->expected_ack_seq) % 64;
if (sub < 0)
sub += 64;
- return sub == pi->remote_tx_win;
+ return sub == ch->remote_tx_win;
}
-#define __get_txseq(ctrl) ((ctrl) & L2CAP_CTRL_TXSEQ) >> 1
-#define __get_reqseq(ctrl) ((ctrl) & L2CAP_CTRL_REQSEQ) >> 8
-#define __is_iframe(ctrl) !((ctrl) & L2CAP_CTRL_FRAME_TYPE)
-#define __is_sframe(ctrl) (ctrl) & L2CAP_CTRL_FRAME_TYPE
-#define __is_sar_start(ctrl) ((ctrl) & L2CAP_CTRL_SAR) == L2CAP_SDU_START
-
-void l2cap_load(void);
+#define __get_txseq(ctrl) (((ctrl) & L2CAP_CTRL_TXSEQ) >> 1)
+#define __get_reqseq(ctrl) (((ctrl) & L2CAP_CTRL_REQSEQ) >> 8)
+#define __is_iframe(ctrl) (!((ctrl) & L2CAP_CTRL_FRAME_TYPE))
+#define __is_sframe(ctrl) ((ctrl) & L2CAP_CTRL_FRAME_TYPE)
+#define __is_sar_start(ctrl) (((ctrl) & L2CAP_CTRL_SAR) == L2CAP_SDU_START)
+
+extern int disable_ertm;
+
+int l2cap_init_sockets(void);
+void l2cap_cleanup_sockets(void);
+
+void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data);
+void __l2cap_connect_rsp_defer(struct l2cap_chan *chan);
+int __l2cap_wait_ack(struct sock *sk);
+
+struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
+struct sk_buff *l2cap_create_basic_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
+struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len, u16 control, u16 sdulen);
+int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
+void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb);
+void l2cap_streaming_send(struct l2cap_chan *chan);
+int l2cap_ertm_send(struct l2cap_chan *chan);
+
+int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm);
+int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid);
+
+void l2cap_sock_set_timer(struct sock *sk, long timeout);
+void l2cap_sock_clear_timer(struct sock *sk);
+void __l2cap_sock_close(struct sock *sk, int reason);
+void l2cap_sock_kill(struct sock *sk);
+void l2cap_sock_init(struct sock *sk, struct sock *parent);
+struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
+ int proto, gfp_t prio);
+void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err);
+struct l2cap_chan *l2cap_chan_create(struct sock *sk);
+void l2cap_chan_del(struct l2cap_chan *chan, int err);
+void l2cap_chan_destroy(struct l2cap_chan *chan);
+int l2cap_chan_connect(struct l2cap_chan *chan);
#endif /* __L2CAP_H */
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-30 05:11:30 +0000