1 /* 2 * ng_btsocket.c 3 * 4 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bitstring.h> 35 #include <sys/errno.h> 36 #include <sys/domain.h> 37 #include <sys/kernel.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/protosw.h> 41 #include <sys/socket.h> 42 #include <sys/socketvar.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #include <netgraph/ng_message.h> 46 #include <netgraph/netgraph.h> 47 #include "ng_bluetooth.h" 48 #include "ng_hci.h" 49 #include "ng_l2cap.h" 50 #include "ng_btsocket.h" 51 #include "ng_btsocket_hci_raw.h" 52 #include "ng_btsocket_l2cap.h" 53 #include "ng_btsocket_rfcomm.h" 54 55 static int ng_btsocket_modevent (module_t, int, void *); 56 extern struct domain ng_btsocket_domain; 57 58 /* 59 * Bluetooth raw HCI sockets 60 */ 61 62 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 63 ng_btsocket_hci_raw_abort, /* abort */ 64 pru_accept_notsupp, /* accept */ 65 ng_btsocket_hci_raw_attach, /* attach */ 66 ng_btsocket_hci_raw_bind, /* bind */ 67 ng_btsocket_hci_raw_connect, /* connect */ 68 pru_connect2_notsupp, /* connect2 */ 69 ng_btsocket_hci_raw_control, /* control */ 70 ng_btsocket_hci_raw_detach, /* detach */ 71 ng_btsocket_hci_raw_disconnect, /* disconnect */ 72 pru_listen_notsupp, /* listen */ 73 ng_btsocket_hci_raw_peeraddr, /* peeraddr */ 74 pru_rcvd_notsupp, /* rcvd */ 75 pru_rcvoob_notsupp, /* rcvoob */ 76 ng_btsocket_hci_raw_send, /* send */ 77 pru_sense_null, /* send */ 78 NULL, /* shutdown */ 79 ng_btsocket_hci_raw_sockaddr, /* sockaddr */ 80 sosend, 81 soreceive, 82 sopoll, 83 pru_sosetlabel_null 84 }; 85 86 /* 87 * Bluetooth raw L2CAP sockets 88 */ 89 90 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 91 ng_btsocket_l2cap_raw_abort, /* abort */ 92 pru_accept_notsupp, /* accept */ 93 ng_btsocket_l2cap_raw_attach, /* attach */ 94 ng_btsocket_l2cap_raw_bind, /* bind */ 95 ng_btsocket_l2cap_raw_connect, /* connect */ 96 pru_connect2_notsupp, /* connect2 */ 97 ng_btsocket_l2cap_raw_control, /* control */ 98 ng_btsocket_l2cap_raw_detach, /* detach */ 99 ng_btsocket_l2cap_raw_disconnect, /* disconnect */ 100 pru_listen_notsupp, /* listen */ 101 ng_btsocket_l2cap_raw_peeraddr, /* peeraddr */ 102 pru_rcvd_notsupp, /* rcvd */ 103 pru_rcvoob_notsupp, /* rcvoob */ 104 ng_btsocket_l2cap_raw_send, /* send */ 105 pru_sense_null, /* send */ 106 NULL, /* shutdown */ 107 ng_btsocket_l2cap_raw_sockaddr, /* sockaddr */ 108 sosend, 109 soreceive, 110 sopoll, 111 pru_sosetlabel_null 112 }; 113 114 /* 115 * Bluetooth SEQPACKET L2CAP sockets 116 */ 117 118 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 119 ng_btsocket_l2cap_abort, /* abort */ 120 ng_btsocket_l2cap_accept, /* accept */ 121 ng_btsocket_l2cap_attach, /* attach */ 122 ng_btsocket_l2cap_bind, /* bind */ 123 ng_btsocket_l2cap_connect, /* connect */ 124 pru_connect2_notsupp, /* connect2 */ 125 ng_btsocket_l2cap_control, /* control */ 126 ng_btsocket_l2cap_detach, /* detach */ 127 ng_btsocket_l2cap_disconnect, /* disconnect */ 128 ng_btsocket_l2cap_listen, /* listen */ 129 ng_btsocket_l2cap_peeraddr, /* peeraddr */ 130 pru_rcvd_notsupp, /* rcvd */ 131 pru_rcvoob_notsupp, /* rcvoob */ 132 ng_btsocket_l2cap_send, /* send */ 133 pru_sense_null, /* send */ 134 NULL, /* shutdown */ 135 ng_btsocket_l2cap_sockaddr, /* sockaddr */ 136 sosend, 137 soreceive, 138 sopoll, 139 pru_sosetlabel_null 140 }; 141 142 /* 143 * Bluetooth STREAM RFCOMM sockets 144 */ 145 146 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 147 ng_btsocket_rfcomm_abort, /* abort */ 148 ng_btsocket_rfcomm_accept, /* accept */ 149 ng_btsocket_rfcomm_attach, /* attach */ 150 ng_btsocket_rfcomm_bind, /* bind */ 151 ng_btsocket_rfcomm_connect, /* connect */ 152 pru_connect2_notsupp, /* connect2 */ 153 ng_btsocket_rfcomm_control, /* control */ 154 ng_btsocket_rfcomm_detach, /* detach */ 155 ng_btsocket_rfcomm_disconnect, /* disconnect */ 156 ng_btsocket_rfcomm_listen, /* listen */ 157 ng_btsocket_rfcomm_peeraddr, /* peeraddr */ 158 pru_rcvd_notsupp, /* rcvd */ 159 pru_rcvoob_notsupp, /* rcvoob */ 160 ng_btsocket_rfcomm_send, /* send */ 161 pru_sense_null, /* send */ 162 NULL, /* shutdown */ 163 ng_btsocket_rfcomm_sockaddr, /* sockaddr */ 164 sosend, 165 soreceive, 166 sopoll, 167 pru_sosetlabel_null 168 }; 169 170 /* 171 * Definitions of protocols supported in the BLUETOOTH domain 172 */ 173 174 static struct protosw ng_btsocket_protosw[] = { 175 { 176 SOCK_RAW, /* protocol type */ 177 &ng_btsocket_domain, /* backpointer to domain */ 178 BLUETOOTH_PROTO_HCI, /* protocol */ 179 PR_ATOMIC | PR_ADDR, /* flags */ 180 NULL, NULL, NULL, /* input, output, ctlinput */ 181 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 182 NULL, /* ousrreq() */ 183 ng_btsocket_hci_raw_init, /* init */ 184 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 185 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 186 /* { NULL } */ /* pfh (protocol filter head?) */ 187 }, 188 { 189 SOCK_RAW, /* protocol type */ 190 &ng_btsocket_domain, /* backpointer to domain */ 191 BLUETOOTH_PROTO_L2CAP, /* protocol */ 192 PR_ATOMIC | PR_ADDR, /* flags */ 193 NULL, NULL, NULL, /* input, output, ctlinput */ 194 NULL, /* ctloutput */ 195 NULL, /* ousrreq() */ 196 ng_btsocket_l2cap_raw_init, /* init */ 197 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 198 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 199 /* { NULL } */ /* pfh (protocol filter head?) */ 200 }, 201 { 202 SOCK_SEQPACKET, /* protocol type */ 203 &ng_btsocket_domain, /* backpointer to domain */ 204 BLUETOOTH_PROTO_L2CAP, /* protocol */ 205 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 206 NULL, NULL, NULL, /* input, output, ctlinput */ 207 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 208 NULL, /* ousrreq() */ 209 ng_btsocket_l2cap_init, /* init */ 210 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 211 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 212 /* { NULL } */ /* pfh (protocol filter head?) */ 213 }, 214 { 215 SOCK_STREAM, /* protocol type */ 216 &ng_btsocket_domain, /* backpointer to domain */ 217 BLUETOOTH_PROTO_RFCOMM, /* protocol */ 218 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 219 NULL, NULL, NULL, /* input, output, ctlinput */ 220 ng_btsocket_rfcomm_ctloutput, /* ctloutput */ 221 NULL, /* ousrreq() */ 222 ng_btsocket_rfcomm_init, /* init */ 223 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 224 &ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */ 225 /* { NULL } */ /* pfh (protocol filter head?) */ 226 } 227 }; 228 #define ng_btsocket_protosw_size \ 229 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 230 #define ng_btsocket_protosw_end \ 231 &ng_btsocket_protosw[ng_btsocket_protosw_size] 232 233 /* 234 * BLUETOOTH domain 235 */ 236 237 struct domain ng_btsocket_domain = { 238 AF_BLUETOOTH, /* family */ 239 "bluetooth", /* domain name */ 240 NULL, /* init() */ 241 NULL, /* externalize() */ 242 NULL, /* dispose() */ 243 ng_btsocket_protosw, /* protosw entry */ 244 ng_btsocket_protosw_end, /* end of protosw entries */ 245 NULL, /* next domain in list */ 246 NULL, /* rtattach() */ 247 0, /* arg to rtattach in bits */ 248 0 /* maxrtkey */ 249 }; 250 251 /* 252 * Socket sysctl tree 253 */ 254 255 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 256 0, "Bluetooth HCI sockets family"); 257 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 258 0, "Bluetooth L2CAP sockets family"); 259 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 260 0, "Bluetooth RFCOMM sockets family"); 261 262 /* 263 * Module 264 */ 265 266 static moduledata_t ng_btsocket_mod = { 267 "ng_btsocket", 268 ng_btsocket_modevent, 269 NULL 270 }; 271 272 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 273 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 274 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 275 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 276 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 277 NG_ABI_VERSION, NG_ABI_VERSION); 278 279 /* 280 * Handle loading and unloading for this node type. 281 * This is to handle auxiliary linkages (e.g protocol domain addition). 282 */ 283 284 static int 285 ng_btsocket_modevent(module_t mod, int event, void *data) 286 { 287 int error = 0; 288 289 switch (event) { 290 case MOD_LOAD: 291 net_add_domain(&ng_btsocket_domain); 292 break; 293 294 case MOD_UNLOAD: 295 /* XXX can't unload protocol domain yet */ 296 error = EBUSY; 297 break; 298 299 default: 300 error = EOPNOTSUPP; 301 break; 302 } 303 304 return (error); 305 } /* ng_btsocket_modevent */ 306 307