4f240aff01
call net_add_domain(). Calling this function too early (or late) breaks assertations about the global domains list. Actually it should be forbidden to call net_add_domain() outside of SI_SUB_PROTO_DOMAIN completely as there are many places where we traverse the domains list unprotected, but for now we allow late calls (mostly to support netgraph). In order to really fix this we have to lock the domains list in all places or find another way to ensure that we can safely walk the list while another thread might be adding a new domain. Spotted by: se Reviewed by: julian, glebius PR: kern/73321 (partly)
273 lines
8.6 KiB
C
273 lines
8.6 KiB
C
/*
|
|
* ng_btsocket.c
|
|
*
|
|
* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
|
|
*
|
|
* $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bitstring.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <netgraph/ng_message.h>
|
|
#include <netgraph/netgraph.h>
|
|
#include <netgraph/bluetooth/include/ng_bluetooth.h>
|
|
#include <netgraph/bluetooth/include/ng_hci.h>
|
|
#include <netgraph/bluetooth/include/ng_l2cap.h>
|
|
#include <netgraph/bluetooth/include/ng_btsocket.h>
|
|
#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
|
|
#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
|
|
#include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
|
|
|
|
static int ng_btsocket_modevent (module_t, int, void *);
|
|
extern struct domain ng_btsocket_domain;
|
|
|
|
/*
|
|
* Bluetooth raw HCI sockets
|
|
*/
|
|
|
|
static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = {
|
|
.pru_abort = ng_btsocket_hci_raw_abort,
|
|
.pru_attach = ng_btsocket_hci_raw_attach,
|
|
.pru_bind = ng_btsocket_hci_raw_bind,
|
|
.pru_connect = ng_btsocket_hci_raw_connect,
|
|
.pru_control = ng_btsocket_hci_raw_control,
|
|
.pru_detach = ng_btsocket_hci_raw_detach,
|
|
.pru_disconnect = ng_btsocket_hci_raw_disconnect,
|
|
.pru_peeraddr = ng_btsocket_hci_raw_peeraddr,
|
|
.pru_send = ng_btsocket_hci_raw_send,
|
|
.pru_shutdown = NULL,
|
|
.pru_sockaddr = ng_btsocket_hci_raw_sockaddr,
|
|
};
|
|
|
|
/*
|
|
* Bluetooth raw L2CAP sockets
|
|
*/
|
|
|
|
static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = {
|
|
.pru_abort = ng_btsocket_l2cap_raw_abort,
|
|
.pru_attach = ng_btsocket_l2cap_raw_attach,
|
|
.pru_bind = ng_btsocket_l2cap_raw_bind,
|
|
.pru_connect = ng_btsocket_l2cap_raw_connect,
|
|
.pru_control = ng_btsocket_l2cap_raw_control,
|
|
.pru_detach = ng_btsocket_l2cap_raw_detach,
|
|
.pru_disconnect = ng_btsocket_l2cap_raw_disconnect,
|
|
.pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr,
|
|
.pru_send = ng_btsocket_l2cap_raw_send,
|
|
.pru_shutdown = NULL,
|
|
.pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr,
|
|
};
|
|
|
|
/*
|
|
* Bluetooth SEQPACKET L2CAP sockets
|
|
*/
|
|
|
|
static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = {
|
|
.pru_abort = ng_btsocket_l2cap_abort,
|
|
.pru_accept = ng_btsocket_l2cap_accept,
|
|
.pru_attach = ng_btsocket_l2cap_attach,
|
|
.pru_bind = ng_btsocket_l2cap_bind,
|
|
.pru_connect = ng_btsocket_l2cap_connect,
|
|
.pru_control = ng_btsocket_l2cap_control,
|
|
.pru_detach = ng_btsocket_l2cap_detach,
|
|
.pru_disconnect = ng_btsocket_l2cap_disconnect,
|
|
.pru_listen = ng_btsocket_l2cap_listen,
|
|
.pru_peeraddr = ng_btsocket_l2cap_peeraddr,
|
|
.pru_send = ng_btsocket_l2cap_send,
|
|
.pru_shutdown = NULL,
|
|
.pru_sockaddr = ng_btsocket_l2cap_sockaddr,
|
|
};
|
|
|
|
/*
|
|
* Bluetooth STREAM RFCOMM sockets
|
|
*/
|
|
|
|
static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = {
|
|
.pru_abort = ng_btsocket_rfcomm_abort,
|
|
.pru_accept = ng_btsocket_rfcomm_accept,
|
|
.pru_attach = ng_btsocket_rfcomm_attach,
|
|
.pru_bind = ng_btsocket_rfcomm_bind,
|
|
.pru_connect = ng_btsocket_rfcomm_connect,
|
|
.pru_control = ng_btsocket_rfcomm_control,
|
|
.pru_detach = ng_btsocket_rfcomm_detach,
|
|
.pru_disconnect = ng_btsocket_rfcomm_disconnect,
|
|
.pru_listen = ng_btsocket_rfcomm_listen,
|
|
.pru_peeraddr = ng_btsocket_rfcomm_peeraddr,
|
|
.pru_send = ng_btsocket_rfcomm_send,
|
|
.pru_shutdown = NULL,
|
|
.pru_sockaddr = ng_btsocket_rfcomm_sockaddr,
|
|
};
|
|
|
|
/*
|
|
* Definitions of protocols supported in the BLUETOOTH domain
|
|
*/
|
|
|
|
static struct protosw ng_btsocket_protosw[] = {
|
|
{
|
|
SOCK_RAW, /* protocol type */
|
|
&ng_btsocket_domain, /* backpointer to domain */
|
|
BLUETOOTH_PROTO_HCI, /* protocol */
|
|
PR_ATOMIC | PR_ADDR, /* flags */
|
|
NULL, NULL, NULL, /* input, output, ctlinput */
|
|
ng_btsocket_hci_raw_ctloutput, /* ctloutput */
|
|
NULL, /* ousrreq() */
|
|
ng_btsocket_hci_raw_init, /* init */
|
|
NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */
|
|
&ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */
|
|
/* { NULL } */ /* pfh (protocol filter head?) */
|
|
},
|
|
{
|
|
SOCK_RAW, /* protocol type */
|
|
&ng_btsocket_domain, /* backpointer to domain */
|
|
BLUETOOTH_PROTO_L2CAP, /* protocol */
|
|
PR_ATOMIC | PR_ADDR, /* flags */
|
|
NULL, NULL, NULL, /* input, output, ctlinput */
|
|
NULL, /* ctloutput */
|
|
NULL, /* ousrreq() */
|
|
ng_btsocket_l2cap_raw_init, /* init */
|
|
NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */
|
|
&ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */
|
|
/* { NULL } */ /* pfh (protocol filter head?) */
|
|
},
|
|
{
|
|
SOCK_SEQPACKET, /* protocol type */
|
|
&ng_btsocket_domain, /* backpointer to domain */
|
|
BLUETOOTH_PROTO_L2CAP, /* protocol */
|
|
PR_ATOMIC | PR_CONNREQUIRED, /* flags */
|
|
NULL, NULL, NULL, /* input, output, ctlinput */
|
|
ng_btsocket_l2cap_ctloutput, /* ctloutput */
|
|
NULL, /* ousrreq() */
|
|
ng_btsocket_l2cap_init, /* init */
|
|
NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */
|
|
&ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */
|
|
/* { NULL } */ /* pfh (protocol filter head?) */
|
|
},
|
|
{
|
|
SOCK_STREAM, /* protocol type */
|
|
&ng_btsocket_domain, /* backpointer to domain */
|
|
BLUETOOTH_PROTO_RFCOMM, /* protocol */
|
|
PR_ATOMIC | PR_CONNREQUIRED, /* flags */
|
|
NULL, NULL, NULL, /* input, output, ctlinput */
|
|
ng_btsocket_rfcomm_ctloutput, /* ctloutput */
|
|
NULL, /* ousrreq() */
|
|
ng_btsocket_rfcomm_init, /* init */
|
|
NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */
|
|
&ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */
|
|
/* { NULL } */ /* pfh (protocol filter head?) */
|
|
}
|
|
};
|
|
#define ng_btsocket_protosw_size \
|
|
(sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0]))
|
|
#define ng_btsocket_protosw_end \
|
|
&ng_btsocket_protosw[ng_btsocket_protosw_size]
|
|
|
|
/*
|
|
* BLUETOOTH domain
|
|
*/
|
|
|
|
struct domain ng_btsocket_domain = {
|
|
AF_BLUETOOTH, /* family */
|
|
"bluetooth", /* domain name */
|
|
NULL, /* init() */
|
|
NULL, /* externalize() */
|
|
NULL, /* dispose() */
|
|
ng_btsocket_protosw, /* protosw entry */
|
|
ng_btsocket_protosw_end, /* end of protosw entries */
|
|
NULL, /* next domain in list */
|
|
NULL, /* rtattach() */
|
|
0, /* arg to rtattach in bits */
|
|
0 /* maxrtkey */
|
|
};
|
|
|
|
/*
|
|
* Socket sysctl tree
|
|
*/
|
|
|
|
SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW,
|
|
0, "Bluetooth HCI sockets family");
|
|
SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW,
|
|
0, "Bluetooth L2CAP sockets family");
|
|
SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW,
|
|
0, "Bluetooth RFCOMM sockets family");
|
|
|
|
/*
|
|
* Module
|
|
*/
|
|
|
|
static moduledata_t ng_btsocket_mod = {
|
|
"ng_btsocket",
|
|
ng_btsocket_modevent,
|
|
NULL
|
|
};
|
|
|
|
DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
|
|
SI_ORDER_ANY);
|
|
MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
|
|
MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
|
|
NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
|
|
MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
|
|
NG_ABI_VERSION, NG_ABI_VERSION);
|
|
|
|
/*
|
|
* Handle loading and unloading for this node type.
|
|
* This is to handle auxiliary linkages (e.g protocol domain addition).
|
|
*/
|
|
|
|
static int
|
|
ng_btsocket_modevent(module_t mod, int event, void *data)
|
|
{
|
|
int error = 0;
|
|
|
|
switch (event) {
|
|
case MOD_LOAD:
|
|
net_add_domain(&ng_btsocket_domain);
|
|
break;
|
|
|
|
case MOD_UNLOAD:
|
|
/* XXX can't unload protocol domain yet */
|
|
error = EBUSY;
|
|
break;
|
|
|
|
default:
|
|
error = EOPNOTSUPP;
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
} /* ng_btsocket_modevent */
|
|
|