1/* 2 * ng_btsocket.c 3 */ 4 5/*- 6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 7 * 8 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $ 33 * $FreeBSD$ 34 */ 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/bitstring.h> 39#include <sys/errno.h> 40#include <sys/domain.h> 41#include <sys/kernel.h> 42#include <sys/lock.h> 43#include <sys/mbuf.h> 44#include <sys/mutex.h> 45#include <sys/protosw.h> 46#include <sys/socket.h> 47#include <sys/socketvar.h> 48#include <sys/sysctl.h> 49#include <sys/taskqueue.h> 50 51#include <net/vnet.h> 52 53#include <netgraph/ng_message.h> 54#include <netgraph/netgraph.h> 55#include <netgraph/bluetooth/include/ng_bluetooth.h> 56#include <netgraph/bluetooth/include/ng_hci.h> 57#include <netgraph/bluetooth/include/ng_l2cap.h> 58#include <netgraph/bluetooth/include/ng_btsocket.h> 59#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 60#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 61#include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h> 62#include <netgraph/bluetooth/include/ng_btsocket_sco.h> 63 64static int ng_btsocket_modevent (module_t, int, void *); 65static struct domain ng_btsocket_domain; 66 67/* 68 * Bluetooth raw HCI sockets 69 */ 70 71static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 72 .pru_abort = ng_btsocket_hci_raw_abort, 73 .pru_attach = ng_btsocket_hci_raw_attach, 74 .pru_bind = ng_btsocket_hci_raw_bind, 75 .pru_connect = ng_btsocket_hci_raw_connect, 76 .pru_control = ng_btsocket_hci_raw_control, 77 .pru_detach = ng_btsocket_hci_raw_detach, 78 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 79 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 80 .pru_send = ng_btsocket_hci_raw_send, 81 .pru_shutdown = NULL, 82 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 83 .pru_close = ng_btsocket_hci_raw_close, 84}; 85 86/* 87 * Bluetooth raw L2CAP sockets 88 */ 89 90static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 91 .pru_abort = ng_btsocket_l2cap_raw_abort, 92 .pru_attach = ng_btsocket_l2cap_raw_attach, 93 .pru_bind = ng_btsocket_l2cap_raw_bind, 94 .pru_connect = ng_btsocket_l2cap_raw_connect, 95 .pru_control = ng_btsocket_l2cap_raw_control, 96 .pru_detach = ng_btsocket_l2cap_raw_detach, 97 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 98 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 99 .pru_send = ng_btsocket_l2cap_raw_send, 100 .pru_shutdown = NULL, 101 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 102 .pru_close = ng_btsocket_l2cap_raw_close, 103}; 104 105/* 106 * Bluetooth SEQPACKET L2CAP sockets 107 */ 108 109static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 110 .pru_abort = ng_btsocket_l2cap_abort, 111 .pru_accept = ng_btsocket_l2cap_accept, 112 .pru_attach = ng_btsocket_l2cap_attach, 113 .pru_bind = ng_btsocket_l2cap_bind, 114 .pru_connect = ng_btsocket_l2cap_connect, 115 .pru_control = ng_btsocket_l2cap_control, 116 .pru_detach = ng_btsocket_l2cap_detach, 117 .pru_disconnect = ng_btsocket_l2cap_disconnect, 118 .pru_listen = ng_btsocket_l2cap_listen, 119 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 120 .pru_send = ng_btsocket_l2cap_send, 121 .pru_shutdown = NULL, 122 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 123 .pru_close = ng_btsocket_l2cap_close, 124}; 125 126/* 127 * Bluetooth STREAM RFCOMM sockets 128 */ 129 130static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 131 .pru_abort = ng_btsocket_rfcomm_abort, 132 .pru_accept = ng_btsocket_rfcomm_accept, 133 .pru_attach = ng_btsocket_rfcomm_attach, 134 .pru_bind = ng_btsocket_rfcomm_bind, 135 .pru_connect = ng_btsocket_rfcomm_connect, 136 .pru_control = ng_btsocket_rfcomm_control, 137 .pru_detach = ng_btsocket_rfcomm_detach, 138 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 139 .pru_listen = ng_btsocket_rfcomm_listen, 140 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 141 .pru_send = ng_btsocket_rfcomm_send, 142 .pru_shutdown = NULL, 143 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 144 .pru_close = ng_btsocket_rfcomm_close, 145}; 146 147/* 148 * Bluetooth SEQPACKET SCO sockets 149 */ 150 151static struct pr_usrreqs ng_btsocket_sco_usrreqs = { 152 .pru_abort = ng_btsocket_sco_abort, 153 .pru_accept = ng_btsocket_sco_accept, 154 .pru_attach = ng_btsocket_sco_attach, 155 .pru_bind = ng_btsocket_sco_bind, 156 .pru_connect = ng_btsocket_sco_connect, 157 .pru_control = ng_btsocket_sco_control, 158 .pru_detach = ng_btsocket_sco_detach, 159 .pru_disconnect = ng_btsocket_sco_disconnect, 160 .pru_listen = ng_btsocket_sco_listen, 161 .pru_peeraddr = ng_btsocket_sco_peeraddr, 162 .pru_send = ng_btsocket_sco_send, 163 .pru_shutdown = NULL, 164 .pru_sockaddr = ng_btsocket_sco_sockaddr, 165 .pru_close = ng_btsocket_sco_close, 166}; 167 168/* 169 * Definitions of protocols supported in the BLUETOOTH domain 170 */ 171 172static struct protosw ng_btsocket_protosw[] = { 173{ 174 .pr_type = SOCK_RAW, 175 .pr_domain = &ng_btsocket_domain, 176 .pr_protocol = BLUETOOTH_PROTO_HCI, 177 .pr_flags = PR_ATOMIC|PR_ADDR, 178 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput, 179 .pr_init = ng_btsocket_hci_raw_init, 180 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs, 181}, 182{ 183 .pr_type = SOCK_RAW, 184 .pr_domain = &ng_btsocket_domain, 185 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 186 .pr_flags = PR_ATOMIC|PR_ADDR, 187 .pr_init = ng_btsocket_l2cap_raw_init, 188 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs, 189}, 190{ 191 .pr_type = SOCK_SEQPACKET, 192 .pr_domain = &ng_btsocket_domain, 193 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 194 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 195 .pr_ctloutput = ng_btsocket_l2cap_ctloutput, 196 .pr_init = ng_btsocket_l2cap_init, 197 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs, 198}, 199{ 200 .pr_type = SOCK_STREAM, 201 .pr_domain = &ng_btsocket_domain, 202 .pr_protocol = BLUETOOTH_PROTO_RFCOMM, 203 .pr_flags = PR_CONNREQUIRED, 204 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput, 205 .pr_init = ng_btsocket_rfcomm_init, 206 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs, 207}, 208{ 209 .pr_type = SOCK_SEQPACKET, 210 .pr_domain = &ng_btsocket_domain, 211 .pr_protocol = BLUETOOTH_PROTO_SCO, 212 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 213 .pr_ctloutput = ng_btsocket_sco_ctloutput, 214 .pr_init = ng_btsocket_sco_init, 215 .pr_usrreqs = &ng_btsocket_sco_usrreqs, 216}, 217}; 218 219#define ng_btsocket_protosw_end \ 220 &ng_btsocket_protosw[nitems(ng_btsocket_protosw)] 221 222/* 223 * BLUETOOTH domain 224 */ 225 226static struct domain ng_btsocket_domain = { 227 .dom_family = AF_BLUETOOTH, 228 .dom_name = "bluetooth", 229 .dom_protosw = ng_btsocket_protosw, 230 .dom_protoswNPROTOSW = ng_btsocket_protosw_end 231}; 232 233/* 234 * Socket sysctl tree 235 */ 236 237SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 238 0, "Bluetooth HCI sockets family"); 239SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 240 0, "Bluetooth L2CAP sockets family"); 241SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 242 0, "Bluetooth RFCOMM sockets family"); 243SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, CTLFLAG_RW, 244 0, "Bluetooth SCO sockets family"); 245 246/* 247 * Module 248 */ 249 250static moduledata_t ng_btsocket_mod = { 251 "ng_btsocket", 252 ng_btsocket_modevent, 253 NULL 254}; 255 256DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 257 SI_ORDER_ANY); 258MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 259MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 260 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 261MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 262 NG_ABI_VERSION, NG_ABI_VERSION); 263 264/* 265 * Handle loading and unloading for this node type. 266 * This is to handle auxiliary linkages (e.g protocol domain addition). 267 */ 268 269static int 270ng_btsocket_modevent(module_t mod, int event, void *data) 271{ 272 int error = 0; 273 274 switch (event) { 275 case MOD_LOAD: 276 break; 277 278 case MOD_UNLOAD: 279 /* XXX can't unload protocol domain yet */ 280 error = EBUSY; 281 break; 282 283 default: 284 error = EOPNOTSUPP; 285 break; 286 } 287 288 return (error); 289} /* ng_btsocket_modevent */ 290 291VNET_DOMAIN_SET(ng_btsocket_); 292