Bluetooth: move l2cap_sock_sendmsg() to l2cap_sock.c
Also moves some L2CAP sending functions declaration to l2cap.h
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 93af233..fe4f834 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -681,6 +681,108 @@
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;