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Diffstat (limited to 'include/net/bluetooth/l2cap.h')
-rw-r--r--include/net/bluetooth/l2cap.h182
1 files changed, 90 insertions, 92 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4f4bff1eaed6..d09c9b1118e3 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -276,63 +276,17 @@ struct l2cap_conn_param_update_rsp {
#define L2CAP_CONN_PARAM_ACCEPTED 0x0000
#define L2CAP_CONN_PARAM_REJECTED 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;
-};
-
-#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 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)
-
+/* ----- 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;
@@ -341,17 +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;
@@ -369,30 +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
@@ -419,24 +416,23 @@ 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)
@@ -446,24 +442,24 @@ static inline int l2cap_tx_window_full(struct sock *sk)
#define __is_sar_start(ctrl) (((ctrl) & L2CAP_CTRL_SAR) == L2CAP_SDU_START)
extern int disable_ertm;
-extern const struct proto_ops l2cap_sock_ops;
-extern struct bt_sock_list l2cap_sk_list;
int l2cap_init_sockets(void);
void l2cap_cleanup_sockets(void);
-u8 l2cap_get_ident(struct l2cap_conn *conn);
void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data);
-int l2cap_build_conf_req(struct sock *sk, 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 sock *sk, struct msghdr *msg, size_t len);
-struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *msg, size_t len);
-struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen);
-int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len);
-void l2cap_do_send(struct sock *sk, struct sk_buff *skb);
-void l2cap_streaming_send(struct sock *sk);
-int l2cap_ertm_send(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);
@@ -472,8 +468,10 @@ 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 sock *sk, int err);
-void l2cap_chan_del(struct sock *sk, int err);
-int l2cap_do_connect(struct sock *sk);
+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 */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.