a5c89047c0
NetBSD Foundation Membership still pending.) This stack was written by Iain under sponsorship from Itronix Inc. The stack includes support for rfcomm networking (networking via your bluetooth enabled cell phone), hid devices (keyboards/mice), and headsets. Drivers for both PCMCIA and USB bluetooth controllers are included.
354 lines
7.5 KiB
C
354 lines
7.5 KiB
C
/* $NetBSD: sco_socket.c,v 1.1 2006/06/19 15:44:45 gdamore Exp $ */
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/*-
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* Copyright (c) 2006 Itronix Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of Itronix Inc. may not be used to endorse
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* or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sco_socket.c,v 1.1 2006/06/19 15:44:45 gdamore Exp $");
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#include <sys/param.h>
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#include <sys/domain.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/systm.h>
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#include <netbt/bluetooth.h>
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#include <netbt/hci.h>
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#include <netbt/sco.h>
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/*******************************************************************************
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*
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* SCO SOCK_SEQPACKET sockets - low latency audio data
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*/
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static void sco_connecting(void *);
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static void sco_connected(void *);
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static void sco_disconnected(void *, int);
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static void *sco_newconn(void *, struct sockaddr_bt *, struct sockaddr_bt *);
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static void sco_complete(void *, int);
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static void sco_input(void *, struct mbuf *);
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static const struct btproto sco_proto = {
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sco_connecting,
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sco_connected,
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sco_disconnected,
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sco_newconn,
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sco_complete,
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sco_input,
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};
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int sco_sendspace = 4096;
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int sco_recvspace = 4096;
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/*
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* User Request.
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* up is socket
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* m is either
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* optional mbuf chain containing message
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* ioctl command (PRU_CONTROL)
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* nam is either
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* optional mbuf chain containing an address
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* ioctl data (PRU_CONTROL)
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* optionally, protocol number (PRU_ATTACH)
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* ctl is optional mbuf chain containing socket options
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* l is pointer to process requesting action (if any)
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*
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* we are responsible for disposing of m and ctl if
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* they are mbuf chains
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*/
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int
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sco_usrreq(struct socket *up, int req, struct mbuf *m,
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struct mbuf *nam, struct mbuf *ctl, struct lwp *l)
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{
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struct sco_pcb *pcb = (struct sco_pcb *)up->so_pcb;
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struct sockaddr_bt *sa;
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struct mbuf *m0;
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int err = 0;
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DPRINTFN(2, "%s\n", prurequests[req]);
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switch(req) {
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case PRU_CONTROL:
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return EOPNOTSUPP;
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case PRU_PURGEIF:
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return EOPNOTSUPP;
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case PRU_ATTACH:
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if (pcb)
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return EINVAL;
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err = soreserve(up, sco_sendspace, sco_recvspace);
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if (err)
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return err;
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return sco_attach((struct sco_pcb **)&up->so_pcb,
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&sco_proto, up);
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}
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/* anything after here *requires* a pcb */
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if (pcb == NULL) {
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err = EINVAL;
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goto release;
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}
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switch(req) {
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case PRU_DISCONNECT:
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soisdisconnecting(up);
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return sco_disconnect(pcb, up->so_linger);
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case PRU_ABORT:
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sco_disconnect(pcb, 0);
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soisdisconnected(up);
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/* fall through to */
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case PRU_DETACH:
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return sco_detach((struct sco_pcb **)&up->so_pcb);
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case PRU_BIND:
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KASSERT(nam);
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sa = mtod(nam, struct sockaddr_bt *);
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if (sa->bt_len != sizeof(struct sockaddr_bt))
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return EINVAL;
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if (sa->bt_family != AF_BLUETOOTH)
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return EAFNOSUPPORT;
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return sco_bind(pcb, sa);
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case PRU_CONNECT:
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KASSERT(nam);
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sa = mtod(nam, struct sockaddr_bt *);
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if (sa->bt_len != sizeof(struct sockaddr_bt))
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return EINVAL;
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if (sa->bt_family != AF_BLUETOOTH)
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return EAFNOSUPPORT;
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soisconnecting(up);
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return sco_connect(pcb, sa);
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case PRU_PEERADDR:
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KASSERT(nam);
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sa = mtod(nam, struct sockaddr_bt *);
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nam->m_len = sizeof(struct sockaddr_bt);
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return sco_peeraddr(pcb, sa);
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case PRU_SOCKADDR:
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KASSERT(nam);
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sa = mtod(nam, struct sockaddr_bt *);
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nam->m_len = sizeof(struct sockaddr_bt);
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return sco_sockaddr(pcb, sa);
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case PRU_SHUTDOWN:
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socantsendmore(up);
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break;
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case PRU_SEND:
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KASSERT(m);
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if (m->m_pkthdr.len == 0)
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break;
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if (m->m_pkthdr.len > pcb->sp_mtu) {
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err = EMSGSIZE;
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break;
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}
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m0 = m_copypacket(m, M_DONTWAIT);
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if (m0 == NULL) {
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err = ENOMEM;
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break;
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}
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if (ctl) /* no use for that */
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m_freem(ctl);
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sbappendrecord(&up->so_snd, m);
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return sco_send(pcb, m0);
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case PRU_SENSE:
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return 0; /* (no sense - Doh!) */
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case PRU_RCVD:
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case PRU_RCVOOB:
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return EOPNOTSUPP; /* (no release) */
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case PRU_ACCEPT:
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KASSERT(nam);
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sa = mtod(nam, struct sockaddr_bt *);
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nam->m_len = sizeof(struct sockaddr_bt);
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return sco_peeraddr(pcb, sa);
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case PRU_CONNECT2:
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case PRU_LISTEN:
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case PRU_SENDOOB:
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case PRU_FASTTIMO:
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case PRU_SLOWTIMO:
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case PRU_PROTORCV:
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case PRU_PROTOSEND:
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err = EOPNOTSUPP;
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break;
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default:
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UNKNOWN(req);
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err = EOPNOTSUPP;
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break;
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}
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release:
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if (m) m_freem(m);
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if (ctl) m_freem(ctl);
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return err;
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}
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/*
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* get/set socket options
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*/
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int
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sco_ctloutput(int req, struct socket *so, int level,
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int optname, struct mbuf **opt)
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{
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struct sco_pcb *pcb = (struct sco_pcb *)so->so_pcb;
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struct mbuf *m;
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int err = 0;
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DPRINTFN(2, "req %s\n", prcorequests[req]);
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if (pcb == NULL)
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return EINVAL;
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if (level != BTPROTO_SCO)
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return 0;
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switch(req) {
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case PRCO_GETOPT:
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m = m_get(M_WAIT, MT_SOOPTS);
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m->m_len = sco_getopt(pcb, optname, mtod(m, uint8_t *));
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if (m->m_len == 0) {
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m_freem(m);
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m = NULL;
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err = EINVAL;
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}
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*opt = m;
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break;
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case PRCO_SETOPT:
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m = *opt;
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KASSERT(m != NULL);
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err = sco_setopt(pcb, optname, mtod(m, uint8_t *));
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m_freem(m);
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break;
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default:
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err = EINVAL;
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break;
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}
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return err;
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}
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/*****************************************************************************
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*
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* SCO Protocol socket callbacks
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*
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*/
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static void
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sco_connecting(void *arg)
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{
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struct socket *so = arg;
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DPRINTF("Connecting\n");
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soisconnecting(so);
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}
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static void
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sco_connected(void *arg)
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{
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struct socket *so = arg;
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DPRINTF("Connected\n");
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soisconnected(so);
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}
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static void
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sco_disconnected(void *arg, int err)
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{
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struct socket *so = arg;
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DPRINTF("Disconnected (%d)\n", err);
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so->so_error = err;
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soisdisconnected(so);
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}
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static void *
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sco_newconn(void *arg, struct sockaddr_bt *laddr, struct sockaddr_bt *raddr)
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{
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// struct socket *so = arg;
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DPRINTF("New Connection");
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return NULL;
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}
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static void
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sco_complete(void *arg, int num)
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{
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struct socket *so = arg;
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while (num-- > 0)
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sbdroprecord(&so->so_snd);
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sowwakeup(so);
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}
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static void
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sco_input(void *arg, struct mbuf *m)
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{
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struct socket *so = arg;
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/*
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* since this data is time sensitive, if the buffer
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* is full we just dump data until the latest one
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* will fit.
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*/
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while (m->m_pkthdr.len > sbspace(&so->so_rcv))
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sbdroprecord(&so->so_rcv);
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DPRINTFN(10, "received %d bytes\n", m->m_pkthdr.len);
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sbappendrecord(&so->so_rcv, m);
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sorwakeup(so);
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}
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