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freebsd-dev/sys/netgraph/bluetooth/socket/ng_btsocket.c
Pawel Biernacki 7029da5c36 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE.  All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by:	kib (mentor, blanket)
Commented by:	kib, gallatin, melifaro
Differential Revision:	https://reviews.freebsd.org/D23718
2020-02-26 14:26:36 +00:00

296 lines
8.8 KiB
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/*
* ng_btsocket.c
*/
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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 <net/vnet.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>
#include <netgraph/bluetooth/include/ng_btsocket_sco.h>
static int ng_btsocket_modevent (module_t, int, void *);
static 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,
.pru_close = ng_btsocket_hci_raw_close,
};
/*
* 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,
.pru_close = ng_btsocket_l2cap_raw_close,
};
/*
* 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,
.pru_close = ng_btsocket_l2cap_close,
};
/*
* 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,
.pru_close = ng_btsocket_rfcomm_close,
};
/*
* Bluetooth SEQPACKET SCO sockets
*/
static struct pr_usrreqs ng_btsocket_sco_usrreqs = {
.pru_abort = ng_btsocket_sco_abort,
.pru_accept = ng_btsocket_sco_accept,
.pru_attach = ng_btsocket_sco_attach,
.pru_bind = ng_btsocket_sco_bind,
.pru_connect = ng_btsocket_sco_connect,
.pru_control = ng_btsocket_sco_control,
.pru_detach = ng_btsocket_sco_detach,
.pru_disconnect = ng_btsocket_sco_disconnect,
.pru_listen = ng_btsocket_sco_listen,
.pru_peeraddr = ng_btsocket_sco_peeraddr,
.pru_send = ng_btsocket_sco_send,
.pru_shutdown = NULL,
.pru_sockaddr = ng_btsocket_sco_sockaddr,
.pru_close = ng_btsocket_sco_close,
};
/*
* Definitions of protocols supported in the BLUETOOTH domain
*/
static struct protosw ng_btsocket_protosw[] = {
{
.pr_type = SOCK_RAW,
.pr_domain = &ng_btsocket_domain,
.pr_protocol = BLUETOOTH_PROTO_HCI,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_ctloutput = ng_btsocket_hci_raw_ctloutput,
.pr_init = ng_btsocket_hci_raw_init,
.pr_usrreqs = &ng_btsocket_hci_raw_usrreqs,
},
{
.pr_type = SOCK_RAW,
.pr_domain = &ng_btsocket_domain,
.pr_protocol = BLUETOOTH_PROTO_L2CAP,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_init = ng_btsocket_l2cap_raw_init,
.pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs,
},
{
.pr_type = SOCK_SEQPACKET,
.pr_domain = &ng_btsocket_domain,
.pr_protocol = BLUETOOTH_PROTO_L2CAP,
.pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
.pr_ctloutput = ng_btsocket_l2cap_ctloutput,
.pr_init = ng_btsocket_l2cap_init,
.pr_usrreqs = &ng_btsocket_l2cap_usrreqs,
},
{
.pr_type = SOCK_STREAM,
.pr_domain = &ng_btsocket_domain,
.pr_protocol = BLUETOOTH_PROTO_RFCOMM,
.pr_flags = PR_CONNREQUIRED,
.pr_ctloutput = ng_btsocket_rfcomm_ctloutput,
.pr_init = ng_btsocket_rfcomm_init,
.pr_usrreqs = &ng_btsocket_rfcomm_usrreqs,
},
{
.pr_type = SOCK_SEQPACKET,
.pr_domain = &ng_btsocket_domain,
.pr_protocol = BLUETOOTH_PROTO_SCO,
.pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
.pr_ctloutput = ng_btsocket_sco_ctloutput,
.pr_init = ng_btsocket_sco_init,
.pr_usrreqs = &ng_btsocket_sco_usrreqs,
},
};
#define ng_btsocket_protosw_end \
&ng_btsocket_protosw[nitems(ng_btsocket_protosw)]
/*
* BLUETOOTH domain
*/
static struct domain ng_btsocket_domain = {
.dom_family = AF_BLUETOOTH,
.dom_name = "bluetooth",
.dom_protosw = ng_btsocket_protosw,
.dom_protoswNPROTOSW = ng_btsocket_protosw_end
};
/*
* Socket sysctl tree
*/
SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Bluetooth HCI sockets family");
SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Bluetooth L2CAP sockets family");
SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Bluetooth RFCOMM sockets family");
SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Bluetooth SCO 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:
break;
case MOD_UNLOAD:
/* XXX can't unload protocol domain yet */
error = EBUSY;
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
} /* ng_btsocket_modevent */
VNET_DOMAIN_SET(ng_btsocket_);
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