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.
379 lines
8.1 KiB
C
379 lines
8.1 KiB
C
/* $NetBSD: rfcomm_socket.c,v 1.1 2006/06/19 15:44:45 gdamore Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2006 Itronix Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Iain Hibbert for Itronix Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of Itronix Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: rfcomm_socket.c,v 1.1 2006/06/19 15:44:45 gdamore Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <netbt/bluetooth.h>
|
|
#include <netbt/rfcomm.h>
|
|
|
|
/****************************************************************************
|
|
*
|
|
* RFCOMM SOCK_STREAM Sockets - serial line emulation
|
|
*
|
|
*/
|
|
|
|
static void rfcomm_connecting(void *);
|
|
static void rfcomm_connected(void *);
|
|
static void rfcomm_disconnected(void *, int);
|
|
static void *rfcomm_newconn(void *, struct sockaddr_bt *, struct sockaddr_bt *);
|
|
static void rfcomm_complete(void *, int);
|
|
static void rfcomm_input(void *, struct mbuf *);
|
|
|
|
static const struct btproto rfcomm_proto = {
|
|
rfcomm_connecting,
|
|
rfcomm_connected,
|
|
rfcomm_disconnected,
|
|
rfcomm_newconn,
|
|
rfcomm_complete,
|
|
rfcomm_input,
|
|
};
|
|
|
|
/* sysctl variables */
|
|
int rfcomm_sendspace = 4096;
|
|
int rfcomm_recvspace = 4096;
|
|
|
|
/*
|
|
* User Request.
|
|
* up is socket
|
|
* m is either
|
|
* optional mbuf chain containing message
|
|
* ioctl command (PRU_CONTROL)
|
|
* nam is either
|
|
* optional mbuf chain containing an address
|
|
* ioctl data (PRU_CONTROL)
|
|
* optionally protocol number (PRU_ATTACH)
|
|
* message flags (PRU_RCVD)
|
|
* ctl is either
|
|
* optional mbuf chain containing socket options
|
|
* optional interface pointer (PRU_CONTROL, PRU_PURGEIF)
|
|
* l is pointer to process requesting action (if any)
|
|
*
|
|
* we are responsible for disposing of m and ctl if
|
|
* they are mbuf chains
|
|
*/
|
|
int
|
|
rfcomm_usrreq(struct socket *up, int req, struct mbuf *m,
|
|
struct mbuf *nam, struct mbuf *ctl, struct lwp *l)
|
|
{
|
|
struct rfcomm_dlc *pcb = up->so_pcb;
|
|
struct sockaddr_bt *sa;
|
|
struct mbuf *m0;
|
|
int err = 0;
|
|
|
|
DPRINTFN(2, "%s\n", prurequests[req]);
|
|
|
|
switch (req) {
|
|
case PRU_CONTROL:
|
|
return EPASSTHROUGH;
|
|
|
|
case PRU_PURGEIF:
|
|
return EOPNOTSUPP;
|
|
|
|
case PRU_ATTACH:
|
|
if (pcb != NULL)
|
|
return EINVAL;
|
|
|
|
/*
|
|
* Since we have nothing to add, we attach the DLC
|
|
* structure directly to our PCB pointer.
|
|
*/
|
|
err = rfcomm_attach((struct rfcomm_dlc **)&up->so_pcb,
|
|
&rfcomm_proto, up);
|
|
if (err)
|
|
return err;
|
|
|
|
err = soreserve(up, rfcomm_sendspace, rfcomm_recvspace);
|
|
if (err)
|
|
return err;
|
|
|
|
err = rfcomm_rcvd(up->so_pcb, sbspace(&up->so_rcv));
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (pcb == NULL) {
|
|
err = EINVAL;
|
|
goto release;
|
|
}
|
|
|
|
switch(req) {
|
|
case PRU_DISCONNECT:
|
|
soisdisconnecting(up);
|
|
return rfcomm_disconnect(pcb, up->so_linger);
|
|
|
|
case PRU_ABORT:
|
|
rfcomm_disconnect(pcb, 0);
|
|
soisdisconnected(up);
|
|
/* fall through to */
|
|
case PRU_DETACH:
|
|
return rfcomm_detach((struct rfcomm_dlc **)&up->so_pcb);
|
|
|
|
case PRU_BIND:
|
|
KASSERT(nam);
|
|
sa = mtod(nam, struct sockaddr_bt *);
|
|
|
|
if (sa->bt_len != sizeof(struct sockaddr_bt))
|
|
return EINVAL;
|
|
|
|
if (sa->bt_family != AF_BLUETOOTH)
|
|
return EAFNOSUPPORT;
|
|
|
|
return rfcomm_bind(pcb, sa);
|
|
|
|
case PRU_CONNECT:
|
|
KASSERT(nam);
|
|
sa = mtod(nam, struct sockaddr_bt *);
|
|
|
|
if (sa->bt_len != sizeof(struct sockaddr_bt))
|
|
return EINVAL;
|
|
|
|
if (sa->bt_family != AF_BLUETOOTH)
|
|
return EAFNOSUPPORT;
|
|
|
|
soisconnecting(up);
|
|
return rfcomm_connect(pcb, sa);
|
|
|
|
case PRU_PEERADDR:
|
|
KASSERT(nam);
|
|
sa = mtod(nam, struct sockaddr_bt *);
|
|
nam->m_len = sizeof(struct sockaddr_bt);
|
|
return rfcomm_peeraddr(pcb, sa);
|
|
|
|
case PRU_SOCKADDR:
|
|
KASSERT(nam);
|
|
sa = mtod(nam, struct sockaddr_bt *);
|
|
nam->m_len = sizeof(struct sockaddr_bt);
|
|
return rfcomm_sockaddr(pcb, sa);
|
|
|
|
case PRU_SHUTDOWN:
|
|
socantsendmore(up);
|
|
break;
|
|
|
|
case PRU_SEND:
|
|
KASSERT(m);
|
|
|
|
if (ctl) /* no use for that */
|
|
m_freem(ctl);
|
|
|
|
m0 = m_copypacket(m, M_DONTWAIT);
|
|
if (m0 == NULL)
|
|
return ENOMEM;
|
|
|
|
sbappendstream(&up->so_snd, m);
|
|
|
|
return rfcomm_send(pcb, m0);
|
|
|
|
case PRU_SENSE:
|
|
return 0; /* (no release) */
|
|
|
|
case PRU_RCVD:
|
|
return rfcomm_rcvd(pcb, sbspace(&up->so_rcv));
|
|
|
|
case PRU_RCVOOB:
|
|
return EOPNOTSUPP; /* (no release) */
|
|
|
|
case PRU_LISTEN:
|
|
return rfcomm_listen(pcb);
|
|
|
|
case PRU_ACCEPT:
|
|
KASSERT(nam);
|
|
sa = mtod(nam, struct sockaddr_bt *);
|
|
nam->m_len = sizeof(struct sockaddr_bt);
|
|
return rfcomm_peeraddr(pcb, sa);
|
|
|
|
case PRU_CONNECT2:
|
|
case PRU_SENDOOB:
|
|
case PRU_FASTTIMO:
|
|
case PRU_SLOWTIMO:
|
|
case PRU_PROTORCV:
|
|
case PRU_PROTOSEND:
|
|
err = EOPNOTSUPP;
|
|
break;
|
|
|
|
default:
|
|
UNKNOWN(req);
|
|
err = EOPNOTSUPP;
|
|
break;
|
|
}
|
|
|
|
release:
|
|
if (m) m_freem(m);
|
|
if (ctl) m_freem(ctl);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* rfcomm_ctloutput(request, socket, level, optname, opt)
|
|
*
|
|
*/
|
|
int
|
|
rfcomm_ctloutput(int req, struct socket *so, int level,
|
|
int optname, struct mbuf **opt)
|
|
{
|
|
struct rfcomm_dlc *pcb = so->so_pcb;
|
|
struct mbuf *m;
|
|
int err = 0;
|
|
|
|
DPRINTFN(2, "%s\n", prcorequests[req]);
|
|
|
|
if (level != BTPROTO_RFCOMM)
|
|
return 0; // err?
|
|
|
|
switch(req) {
|
|
case PRCO_GETOPT:
|
|
m = m_get(M_WAIT, MT_SOOPTS);
|
|
m->m_len = rfcomm_getopt(pcb, optname, mtod(m, void *));
|
|
if (m->m_len == 0) {
|
|
m_freem(m);
|
|
m = NULL;
|
|
err = EINVAL;
|
|
}
|
|
*opt = m;
|
|
break;
|
|
|
|
case PRCO_SETOPT:
|
|
m = *opt;
|
|
KASSERT(m != NULL);
|
|
err = rfcomm_setopt(pcb, optname, mtod(m, void *));
|
|
m_freem(m);
|
|
break;
|
|
|
|
default:
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/**********************************************************************
|
|
*
|
|
* RFCOMM callbacks
|
|
*/
|
|
|
|
static void
|
|
rfcomm_connecting(void *arg)
|
|
{
|
|
/* struct socket *so = arg; */
|
|
|
|
KASSERT(arg);
|
|
DPRINTF("Connecting\n");
|
|
}
|
|
|
|
static void
|
|
rfcomm_connected(void *arg)
|
|
{
|
|
struct socket *so = arg;
|
|
|
|
KASSERT(so);
|
|
DPRINTF("Connected\n");
|
|
soisconnected(so);
|
|
}
|
|
|
|
static void
|
|
rfcomm_disconnected(void *arg, int err)
|
|
{
|
|
struct socket *so = arg;
|
|
|
|
KASSERT(so);
|
|
DPRINTF("Disconnected\n");
|
|
|
|
so->so_error = err;
|
|
soisdisconnected(so);
|
|
}
|
|
|
|
static void *
|
|
rfcomm_newconn(void *arg, struct sockaddr_bt *laddr, struct sockaddr_bt *raddr)
|
|
{
|
|
struct socket *so = arg;
|
|
|
|
DPRINTF("New Connection\n");
|
|
so = sonewconn(so, 0);
|
|
if (so == NULL)
|
|
return NULL;
|
|
|
|
soisconnecting(so);
|
|
|
|
return so->so_pcb;
|
|
}
|
|
|
|
/*
|
|
* rfcomm_complete(rfcomm_dlc, length)
|
|
*
|
|
* length bytes are sent and may be removed from socket buffer
|
|
*/
|
|
static void
|
|
rfcomm_complete(void *arg, int length)
|
|
{
|
|
struct socket *so = arg;
|
|
|
|
sbdrop(&so->so_snd, length);
|
|
sowwakeup(so);
|
|
}
|
|
|
|
/*
|
|
* rfcomm_input(rfcomm_dlc, mbuf)
|
|
*/
|
|
static void
|
|
rfcomm_input(void *arg, struct mbuf *m)
|
|
{
|
|
struct socket *so = arg;
|
|
|
|
KASSERT(so);
|
|
|
|
if (m->m_pkthdr.len > sbspace(&so->so_rcv)) {
|
|
printf("%s: %d bytes dropped (socket buffer full)\n",
|
|
__func__, m->m_pkthdr.len);
|
|
m_freem(m);
|
|
return;
|
|
}
|
|
|
|
DPRINTFN(10, "received %d bytes\n", m->m_pkthdr.len);
|
|
|
|
sbappendstream(&so->so_rcv, m);
|
|
sorwakeup(so);
|
|
}
|