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提交 fd83ccdb 编写于 作者: G Gustavo F. Padovan
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Bluetooth: move l2cap_sock_sendmsg() to l2cap_sock.c 

Also moves some L2CAP sending functions declaration to l2cap.h
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>
上级 dcba0dba
隐藏空白更改
内联 并排
Showing with 117 addition and 112 deletion
include/net/bluetooth/l2cap.h
浏览文件 @ fd83ccdb
......@@ -436,6 +436,14 @@ void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *d
int l2cap_build_conf_req(struct sock *sk, void *data);
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);
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);
......@@ -445,9 +453,6 @@ struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio);
int l2cap_do_connect(struct sock *sk);
int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len);
void l2cap_load(void);
#endif /* __L2CAP_H */
net/bluetooth/l2cap_core.c
浏览文件 @ fd83ccdb
......@@ -993,7 +993,7 @@ static void l2cap_drop_acked_frames(struct sock *sk)
del_timer(&l2cap_pi(sk)->retrans_timer);
}
static inline void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct hci_conn *hcon = pi->conn->hcon;
......@@ -1009,7 +1009,7 @@ static inline void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
hci_send_acl(hcon, skb, flags);
}
static void l2cap_streaming_send(struct sock *sk)
void l2cap_streaming_send(struct sock *sk)
{
struct sk_buff *skb;
struct l2cap_pinfo *pi = l2cap_pi(sk);
......@@ -1078,7 +1078,7 @@ static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
l2cap_do_send(sk, tx_skb);
}
static int l2cap_ertm_send(struct sock *sk)
int l2cap_ertm_send(struct sock *sk)
{
struct sk_buff *skb, *tx_skb;
struct l2cap_pinfo *pi = l2cap_pi(sk);
......@@ -1218,7 +1218,7 @@ static inline int l2cap_skbuff_fromiovec(struct sock *sk, struct msghdr *msg, in
return sent;
}
static struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, size_t len)
struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, size_t len)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
struct sk_buff *skb;
......@@ -1247,7 +1247,7 @@ static struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr
return skb;
}
static struct sk_buff *l2cap_create_basic_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 l2cap_conn *conn = l2cap_pi(sk)->conn;
struct sk_buff *skb;
......@@ -1275,7 +1275,7 @@ static struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *ms
return skb;
}
static struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen)
struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
struct sk_buff *skb;
......@@ -1320,7 +1320,7 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *m
return skb;
}
static inline int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb;
......@@ -1366,108 +1366,6 @@ static inline int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, siz
return size;
}
int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb;
u16 control;
int err;
BT_DBG("sock %p, sk %p", sock, sk);
err = sock_error(sk);
if (err)
return err;
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
lock_sock(sk);
if (sk->sk_state != BT_CONNECTED) {
err = -ENOTCONN;
goto done;
}
/* Connectionless channel */
if (sk->sk_type == SOCK_DGRAM) {
skb = l2cap_create_connless_pdu(sk, msg, len);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
} else {
l2cap_do_send(sk, skb);
err = len;
}
goto done;
}
switch (pi->mode) {
case L2CAP_MODE_BASIC:
/* Check outgoing MTU */
if (len > pi->omtu) {
err = -EMSGSIZE;
goto done;
}
/* Create a basic PDU */
skb = l2cap_create_basic_pdu(sk, msg, len);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
goto done;
}
l2cap_do_send(sk, skb);
err = len;
break;
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
/* Entire SDU fits into one PDU */
if (len <= pi->remote_mps) {
control = L2CAP_SDU_UNSEGMENTED;
skb = l2cap_create_iframe_pdu(sk, msg, len, control, 0);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
goto done;
}
__skb_queue_tail(TX_QUEUE(sk), skb);
if (sk->sk_send_head == NULL)
sk->sk_send_head = skb;
} else {
/* Segment SDU into multiples PDUs */
err = l2cap_sar_segment_sdu(sk, msg, len);
if (err < 0)
goto done;
}
if (pi->mode == L2CAP_MODE_STREAMING) {
l2cap_streaming_send(sk);
} else {
if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
(pi->conn_state & L2CAP_CONN_WAIT_F)) {
err = len;
break;
}
err = l2cap_ertm_send(sk);
}
if (err >= 0)
err = len;
break;
default:
BT_DBG("bad state %1.1x", pi->mode);
err = -EBADFD;
}
done:
release_sock(sk);
return err;
}
static void l2cap_chan_ready(struct sock *sk)
{
struct sock *parent = bt_sk(sk)->parent;
......
net/bluetooth/l2cap_sock.c
浏览文件 @ fd83ccdb
......@@ -681,6 +681,108 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
return err;
}
static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb;
u16 control;
int err;
BT_DBG("sock %p, sk %p", sock, sk);
err = sock_error(sk);
if (err)
return err;
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
lock_sock(sk);
if (sk->sk_state != BT_CONNECTED) {
err = -ENOTCONN;
goto done;
}
/* Connectionless channel */
if (sk->sk_type == SOCK_DGRAM) {
skb = l2cap_create_connless_pdu(sk, msg, len);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
} else {
l2cap_do_send(sk, skb);
err = len;
}
goto done;
}
switch (pi->mode) {
case L2CAP_MODE_BASIC:
/* Check outgoing MTU */
if (len > pi->omtu) {
err = -EMSGSIZE;
goto done;
}
/* Create a basic PDU */
skb = l2cap_create_basic_pdu(sk, msg, len);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
goto done;
}
l2cap_do_send(sk, skb);
err = len;
break;
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
/* Entire SDU fits into one PDU */
if (len <= pi->remote_mps) {
control = L2CAP_SDU_UNSEGMENTED;
skb = l2cap_create_iframe_pdu(sk, msg, len, control, 0);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
goto done;
}
__skb_queue_tail(TX_QUEUE(sk), skb);
if (sk->sk_send_head == NULL)
sk->sk_send_head = skb;
} else {
/* Segment SDU into multiples PDUs */
err = l2cap_sar_segment_sdu(sk, msg, len);
if (err < 0)
goto done;
}
if (pi->mode == L2CAP_MODE_STREAMING) {
l2cap_streaming_send(sk);
} else {
if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
(pi->conn_state & L2CAP_CONN_WAIT_F)) {
err = len;
break;
}
err = l2cap_ertm_send(sk);
}
if (err >= 0)
err = len;
break;
default:
BT_DBG("bad state %1.1x", pi->mode);
err = -EBADFD;
}
done:
release_sock(sk);
return err;
}
static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags)
{
struct sock *sk = sock->sk;
......
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