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 64 static int ng_btsocket_modevent (module_t, int, void *); 65 static struct domain ng_btsocket_domain; 66 67 /* 68 * Bluetooth raw HCI sockets 69 */ 70 71 static 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 90 static 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 */ 108 109 static 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 */ 129 130 static 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 */ 150 151 static 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 */ 171 172 static 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 */ 225 226 static 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 */ 236 237 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, 238 CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 239 "Bluetooth HCI sockets family"); 240 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, 241 CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 242 "Bluetooth L2CAP sockets family"); 243 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, 244 CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 245 "Bluetooth RFCOMM sockets family"); 246 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, 247 CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 248 "Bluetooth SCO sockets family"); 249 250 /* 251 * Module 252 */ 253 254 static moduledata_t ng_btsocket_mod = { 255 "ng_btsocket", 256 ng_btsocket_modevent, 257 NULL 258 }; 259 260 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 261 SI_ORDER_ANY); 262 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 263 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 264 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 265 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 266 NG_ABI_VERSION, NG_ABI_VERSION); 267 268 /* 269 * Handle loading and unloading for this node type. 270 * This is to handle auxiliary linkages (e.g protocol domain addition). 271 */ 272 273 static int 274 ng_btsocket_modevent(module_t mod, int event, void *data) 275 { 276 int error = 0; 277 278 switch (event) { 279 case MOD_LOAD: 280 break; 281 282 case MOD_UNLOAD: 283 /* XXX can't unload protocol domain yet */ 284 error = EBUSY; 285 break; 286 287 default: 288 error = EOPNOTSUPP; 289 break; 290 } 291 292 return (error); 293 } /* ng_btsocket_modevent */ 294 295 VNET_DOMAIN_SET(ng_btsocket_); 296