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0fac350c54
Just like it was done for accept(2) in cfb1e92912, use same approach
for two simplier syscalls that return socket addresses. Although,
these two syscalls aren't performance critical, this change generalizes
some code between 3 syscalls trimming code size.
Following example of accept(2), provide VNET-aware and INVARIANT-checking
wrappers sopeeraddr() and sosockaddr() around protosw methods.
Reviewed by: tuexen
Differential Revision: https://reviews.freebsd.org/D42694
248 lines
7.9 KiB
C
248 lines
7.9 KiB
C
/*
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* ng_btsocket.c
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*/
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bitstring.h>
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#include <sys/errno.h>
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#include <sys/domain.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mbuf.h>
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#include <sys/mutex.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/sysctl.h>
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#include <sys/taskqueue.h>
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#include <net/vnet.h>
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#include <netgraph/ng_message.h>
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#include <netgraph/netgraph.h>
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#include <netgraph/bluetooth/include/ng_bluetooth.h>
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#include <netgraph/bluetooth/include/ng_hci.h>
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#include <netgraph/bluetooth/include/ng_l2cap.h>
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#include <netgraph/bluetooth/include/ng_btsocket.h>
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#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
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#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
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#include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
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#include <netgraph/bluetooth/include/ng_btsocket_sco.h>
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static int ng_btsocket_modevent (module_t, int, void *);
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/*
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* Definitions of protocols supported in the BLUETOOTH domain
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*/
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/* Bluetooth raw HCI sockets */
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static struct protosw ng_btsocket_hci_raw_protosw = {
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.pr_type = SOCK_RAW,
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.pr_protocol = BLUETOOTH_PROTO_HCI,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_ctloutput = ng_btsocket_hci_raw_ctloutput,
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.pr_abort = ng_btsocket_hci_raw_abort,
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.pr_attach = ng_btsocket_hci_raw_attach,
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.pr_bind = ng_btsocket_hci_raw_bind,
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.pr_connect = ng_btsocket_hci_raw_connect,
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.pr_control = ng_btsocket_hci_raw_control,
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.pr_detach = ng_btsocket_hci_raw_detach,
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.pr_disconnect = ng_btsocket_hci_raw_disconnect,
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.pr_peeraddr = ng_btsocket_hci_raw_sockaddr,
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.pr_send = ng_btsocket_hci_raw_send,
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.pr_sockaddr = ng_btsocket_hci_raw_sockaddr,
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.pr_close = ng_btsocket_hci_raw_close,
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};
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/* Bluetooth raw L2CAP sockets */
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static struct protosw ng_btsocket_l2cap_raw_protosw = {
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.pr_type = SOCK_RAW,
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.pr_protocol = BLUETOOTH_PROTO_L2CAP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_abort = ng_btsocket_l2cap_raw_abort,
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.pr_attach = ng_btsocket_l2cap_raw_attach,
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.pr_bind = ng_btsocket_l2cap_raw_bind,
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.pr_connect = ng_btsocket_l2cap_raw_connect,
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.pr_control = ng_btsocket_l2cap_raw_control,
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.pr_detach = ng_btsocket_l2cap_raw_detach,
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.pr_disconnect = ng_btsocket_l2cap_raw_disconnect,
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.pr_peeraddr = ng_btsocket_l2cap_raw_peeraddr,
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.pr_send = ng_btsocket_l2cap_raw_send,
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.pr_sockaddr = ng_btsocket_l2cap_raw_sockaddr,
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.pr_close = ng_btsocket_l2cap_raw_close,
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};
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/* Bluetooth SEQPACKET L2CAP sockets */
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static struct protosw ng_btsocket_l2cap_protosw = {
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.pr_type = SOCK_SEQPACKET,
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.pr_protocol = BLUETOOTH_PROTO_L2CAP,
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.pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
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.pr_ctloutput = ng_btsocket_l2cap_ctloutput,
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.pr_abort = ng_btsocket_l2cap_abort,
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.pr_accept = ng_btsocket_l2cap_peeraddr,
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.pr_attach = ng_btsocket_l2cap_attach,
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.pr_bind = ng_btsocket_l2cap_bind,
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.pr_connect = ng_btsocket_l2cap_connect,
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.pr_control = ng_btsocket_l2cap_control,
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.pr_detach = ng_btsocket_l2cap_detach,
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.pr_disconnect = ng_btsocket_l2cap_disconnect,
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.pr_listen = ng_btsocket_l2cap_listen,
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.pr_peeraddr = ng_btsocket_l2cap_peeraddr,
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.pr_send = ng_btsocket_l2cap_send,
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.pr_sockaddr = ng_btsocket_l2cap_sockaddr,
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.pr_close = ng_btsocket_l2cap_close,
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};
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/* Bluetooth STREAM RFCOMM sockets */
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static struct protosw ng_btsocket_rfcomm_protosw = {
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.pr_type = SOCK_STREAM,
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.pr_protocol = BLUETOOTH_PROTO_RFCOMM,
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.pr_flags = PR_CONNREQUIRED,
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.pr_ctloutput = ng_btsocket_rfcomm_ctloutput,
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.pr_abort = ng_btsocket_rfcomm_abort,
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.pr_accept = ng_btsocket_rfcomm_peeraddr,
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.pr_attach = ng_btsocket_rfcomm_attach,
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.pr_bind = ng_btsocket_rfcomm_bind,
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.pr_connect = ng_btsocket_rfcomm_connect,
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.pr_control = ng_btsocket_rfcomm_control,
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.pr_detach = ng_btsocket_rfcomm_detach,
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.pr_disconnect = ng_btsocket_rfcomm_disconnect,
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.pr_listen = ng_btsocket_rfcomm_listen,
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.pr_peeraddr = ng_btsocket_rfcomm_peeraddr,
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.pr_send = ng_btsocket_rfcomm_send,
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.pr_sockaddr = ng_btsocket_rfcomm_sockaddr,
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.pr_close = ng_btsocket_rfcomm_close,
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};
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/* Bluetooth SEQPACKET SCO sockets */
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static struct protosw ng_btsocket_sco_protosw = {
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.pr_type = SOCK_SEQPACKET,
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.pr_protocol = BLUETOOTH_PROTO_SCO,
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.pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
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.pr_ctloutput = ng_btsocket_sco_ctloutput,
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.pr_abort = ng_btsocket_sco_abort,
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.pr_accept = ng_btsocket_sco_peeraddr,
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.pr_attach = ng_btsocket_sco_attach,
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.pr_bind = ng_btsocket_sco_bind,
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.pr_connect = ng_btsocket_sco_connect,
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.pr_control = ng_btsocket_sco_control,
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.pr_detach = ng_btsocket_sco_detach,
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.pr_disconnect = ng_btsocket_sco_disconnect,
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.pr_listen = ng_btsocket_sco_listen,
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.pr_peeraddr = ng_btsocket_sco_peeraddr,
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.pr_send = ng_btsocket_sco_send,
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.pr_sockaddr = ng_btsocket_sco_sockaddr,
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.pr_close = ng_btsocket_sco_close,
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};
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/*
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* BLUETOOTH domain
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*/
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static struct domain ng_btsocket_domain = {
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.dom_family = AF_BLUETOOTH,
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.dom_name = "bluetooth",
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.dom_nprotosw = 5,
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.dom_protosw = {
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&ng_btsocket_hci_raw_protosw,
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&ng_btsocket_l2cap_raw_protosw,
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&ng_btsocket_l2cap_protosw,
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&ng_btsocket_rfcomm_protosw,
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&ng_btsocket_sco_protosw,
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},
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};
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/*
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* Socket sysctl tree
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*/
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SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
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CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Bluetooth HCI sockets family");
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SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
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CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Bluetooth L2CAP sockets family");
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SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
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CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Bluetooth RFCOMM sockets family");
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SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
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CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Bluetooth SCO sockets family");
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/*
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* Module
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*/
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static moduledata_t ng_btsocket_mod = {
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"ng_btsocket",
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ng_btsocket_modevent,
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NULL
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};
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DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
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SI_ORDER_ANY);
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MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
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MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
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NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
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MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
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NG_ABI_VERSION, NG_ABI_VERSION);
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/*
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* Handle loading and unloading for this node type.
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* This is to handle auxiliary linkages (e.g protocol domain addition).
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*/
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static int
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ng_btsocket_modevent(module_t mod, int event, void *data)
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{
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int error = 0;
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switch (event) {
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case MOD_LOAD:
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break;
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case MOD_UNLOAD:
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/* XXX can't unload protocol domain yet */
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error = EBUSY;
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break;
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default:
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error = EOPNOTSUPP;
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break;
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}
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return (error);
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} /* ng_btsocket_modevent */
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DOMAIN_SET(ng_btsocket_);
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