static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags) { struct sock *sk = sock->sk; int err; lock_sock(sk); if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) { struct l2cap_conn_rsp rsp; struct l2cap_conn *conn = l2cap_pi(sk)->conn; u8 buf[128]; if (l2cap_pi(sk)->amp_id) { /* Physical link must be brought up before connection * completes. */ amp_accept_physical(conn, l2cap_pi(sk)->amp_id, sk); release_sock(sk); return 0; } sk->sk_state = BT_CONFIG; rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid); rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid); rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS); rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO); l2cap_send_cmd(l2cap_pi(sk)->conn, l2cap_pi(sk)->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp); if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) { release_sock(sk); return 0; } l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT; l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ, l2cap_build_conf_req(sk, buf), buf); l2cap_pi(sk)->num_conf_req++; release_sock(sk); return 0; } release_sock(sk); if (sock->type == SOCK_STREAM) err = bt_sock_stream_recvmsg(iocb, sock, msg, len, flags); else err = bt_sock_recvmsg(iocb, sock, msg, len, flags); if (err >= 0) l2cap_ertm_recv_done(sk); return err; }
void __l2cap_sock_close(struct sock *sk, int reason) { struct l2cap_conn *conn = l2cap_pi(sk)->conn; BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); switch (sk->sk_state) { case BT_LISTEN: l2cap_sock_cleanup_listen(sk); break; case BT_CONNECTED: case BT_CONFIG: if ((sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM) && conn->hcon->type == ACL_LINK) { l2cap_sock_set_timer(sk, sk->sk_sndtimeo); l2cap_send_disconn_req(conn, sk, reason); } else l2cap_chan_del(sk, reason); break; case BT_CONNECT2: if ((sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM) && conn->hcon->type == ACL_LINK) { struct l2cap_conn_rsp rsp; __u16 result; if (bt_sk(sk)->defer_setup) result = L2CAP_CR_SEC_BLOCK; else result = L2CAP_CR_BAD_PSM; sk->sk_state = BT_DISCONN; rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid); rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid); rsp.result = cpu_to_le16(result); rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO); l2cap_send_cmd(conn, l2cap_pi(sk)->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp); } l2cap_chan_del(sk, reason); break; case BT_CONNECT: case BT_DISCONN: l2cap_chan_del(sk, reason); break; default: sock_set_flag(sk, SOCK_ZAPPED); break; } }
static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags) { struct sock *sk = sock->sk; lock_sock(sk); if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) { struct l2cap_conn_rsp rsp; struct l2cap_conn *conn = l2cap_pi(sk)->conn; u8 buf[128]; sk->sk_state = BT_CONFIG; rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid); rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid); rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS); rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO); l2cap_send_cmd(l2cap_pi(sk)->conn, l2cap_pi(sk)->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp); if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) { release_sock(sk); return 0; } l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT; l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ, l2cap_build_conf_req(sk, buf), buf); l2cap_pi(sk)->num_conf_req++; release_sock(sk); return 0; } release_sock(sk); if (sock->type == SOCK_STREAM) return bt_sock_stream_recvmsg(iocb, sock, msg, len, flags); return bt_sock_recvmsg(iocb, sock, msg, len, flags); }