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/mbuf.h> 40 #include <sys/mutex.h> 41 #include <sys/protosw.h> 42 #include <sys/socket.h> 43 #include <sys/socketvar.h> 44 #include <sys/sysctl.h> 45 #include <sys/taskqueue.h> 46 #include <netgraph/ng_message.h> 47 #include <netgraph/netgraph.h> 48 #include <netgraph/bluetooth/include/ng_bluetooth.h> 49 #include <netgraph/bluetooth/include/ng_hci.h> 50 #include <netgraph/bluetooth/include/ng_l2cap.h> 51 #include <netgraph/bluetooth/include/ng_btsocket.h> 52 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 53 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 54 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h> 55 56 static int ng_btsocket_modevent (module_t, int, void *); 57 extern struct domain ng_btsocket_domain; 58 59 /* 60 * Bluetooth raw HCI sockets 61 */ 62 63 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 64 ng_btsocket_hci_raw_abort, /* abort */ 65 pru_accept_notsupp, /* accept */ 66 ng_btsocket_hci_raw_attach, /* attach */ 67 ng_btsocket_hci_raw_bind, /* bind */ 68 ng_btsocket_hci_raw_connect, /* connect */ 69 pru_connect2_notsupp, /* connect2 */ 70 ng_btsocket_hci_raw_control, /* control */ 71 ng_btsocket_hci_raw_detach, /* detach */ 72 ng_btsocket_hci_raw_disconnect, /* disconnect */ 73 pru_listen_notsupp, /* listen */ 74 ng_btsocket_hci_raw_peeraddr, /* peeraddr */ 75 pru_rcvd_notsupp, /* rcvd */ 76 pru_rcvoob_notsupp, /* rcvoob */ 77 ng_btsocket_hci_raw_send, /* send */ 78 pru_sense_null, /* send */ 79 NULL, /* shutdown */ 80 ng_btsocket_hci_raw_sockaddr, /* sockaddr */ 81 sosend, 82 soreceive, 83 sopoll, 84 pru_sosetlabel_null 85 }; 86 87 /* 88 * Bluetooth raw L2CAP sockets 89 */ 90 91 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 92 ng_btsocket_l2cap_raw_abort, /* abort */ 93 pru_accept_notsupp, /* accept */ 94 ng_btsocket_l2cap_raw_attach, /* attach */ 95 ng_btsocket_l2cap_raw_bind, /* bind */ 96 ng_btsocket_l2cap_raw_connect, /* connect */ 97 pru_connect2_notsupp, /* connect2 */ 98 ng_btsocket_l2cap_raw_control, /* control */ 99 ng_btsocket_l2cap_raw_detach, /* detach */ 100 ng_btsocket_l2cap_raw_disconnect, /* disconnect */ 101 pru_listen_notsupp, /* listen */ 102 ng_btsocket_l2cap_raw_peeraddr, /* peeraddr */ 103 pru_rcvd_notsupp, /* rcvd */ 104 pru_rcvoob_notsupp, /* rcvoob */ 105 ng_btsocket_l2cap_raw_send, /* send */ 106 pru_sense_null, /* send */ 107 NULL, /* shutdown */ 108 ng_btsocket_l2cap_raw_sockaddr, /* sockaddr */ 109 sosend, 110 soreceive, 111 sopoll, 112 pru_sosetlabel_null 113 }; 114 115 /* 116 * Bluetooth SEQPACKET L2CAP sockets 117 */ 118 119 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 120 ng_btsocket_l2cap_abort, /* abort */ 121 ng_btsocket_l2cap_accept, /* accept */ 122 ng_btsocket_l2cap_attach, /* attach */ 123 ng_btsocket_l2cap_bind, /* bind */ 124 ng_btsocket_l2cap_connect, /* connect */ 125 pru_connect2_notsupp, /* connect2 */ 126 ng_btsocket_l2cap_control, /* control */ 127 ng_btsocket_l2cap_detach, /* detach */ 128 ng_btsocket_l2cap_disconnect, /* disconnect */ 129 ng_btsocket_l2cap_listen, /* listen */ 130 ng_btsocket_l2cap_peeraddr, /* peeraddr */ 131 pru_rcvd_notsupp, /* rcvd */ 132 pru_rcvoob_notsupp, /* rcvoob */ 133 ng_btsocket_l2cap_send, /* send */ 134 pru_sense_null, /* send */ 135 NULL, /* shutdown */ 136 ng_btsocket_l2cap_sockaddr, /* sockaddr */ 137 sosend, 138 soreceive, 139 sopoll, 140 pru_sosetlabel_null 141 }; 142 143 /* 144 * Bluetooth STREAM RFCOMM sockets 145 */ 146 147 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 148 ng_btsocket_rfcomm_abort, /* abort */ 149 ng_btsocket_rfcomm_accept, /* accept */ 150 ng_btsocket_rfcomm_attach, /* attach */ 151 ng_btsocket_rfcomm_bind, /* bind */ 152 ng_btsocket_rfcomm_connect, /* connect */ 153 pru_connect2_notsupp, /* connect2 */ 154 ng_btsocket_rfcomm_control, /* control */ 155 ng_btsocket_rfcomm_detach, /* detach */ 156 ng_btsocket_rfcomm_disconnect, /* disconnect */ 157 ng_btsocket_rfcomm_listen, /* listen */ 158 ng_btsocket_rfcomm_peeraddr, /* peeraddr */ 159 pru_rcvd_notsupp, /* rcvd */ 160 pru_rcvoob_notsupp, /* rcvoob */ 161 ng_btsocket_rfcomm_send, /* send */ 162 pru_sense_null, /* send */ 163 NULL, /* shutdown */ 164 ng_btsocket_rfcomm_sockaddr, /* sockaddr */ 165 sosend, 166 soreceive, 167 sopoll, 168 pru_sosetlabel_null 169 }; 170 171 /* 172 * Definitions of protocols supported in the BLUETOOTH domain 173 */ 174 175 static struct protosw ng_btsocket_protosw[] = { 176 { 177 SOCK_RAW, /* protocol type */ 178 &ng_btsocket_domain, /* backpointer to domain */ 179 BLUETOOTH_PROTO_HCI, /* protocol */ 180 PR_ATOMIC | PR_ADDR, /* flags */ 181 NULL, NULL, NULL, /* input, output, ctlinput */ 182 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 183 NULL, /* ousrreq() */ 184 ng_btsocket_hci_raw_init, /* init */ 185 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 186 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 187 /* { NULL } */ /* pfh (protocol filter head?) */ 188 }, 189 { 190 SOCK_RAW, /* protocol type */ 191 &ng_btsocket_domain, /* backpointer to domain */ 192 BLUETOOTH_PROTO_L2CAP, /* protocol */ 193 PR_ATOMIC | PR_ADDR, /* flags */ 194 NULL, NULL, NULL, /* input, output, ctlinput */ 195 NULL, /* ctloutput */ 196 NULL, /* ousrreq() */ 197 ng_btsocket_l2cap_raw_init, /* init */ 198 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 199 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 200 /* { NULL } */ /* pfh (protocol filter head?) */ 201 }, 202 { 203 SOCK_SEQPACKET, /* protocol type */ 204 &ng_btsocket_domain, /* backpointer to domain */ 205 BLUETOOTH_PROTO_L2CAP, /* protocol */ 206 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 207 NULL, NULL, NULL, /* input, output, ctlinput */ 208 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 209 NULL, /* ousrreq() */ 210 ng_btsocket_l2cap_init, /* init */ 211 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 212 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 213 /* { NULL } */ /* pfh (protocol filter head?) */ 214 }, 215 { 216 SOCK_STREAM, /* protocol type */ 217 &ng_btsocket_domain, /* backpointer to domain */ 218 BLUETOOTH_PROTO_RFCOMM, /* protocol */ 219 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 220 NULL, NULL, NULL, /* input, output, ctlinput */ 221 ng_btsocket_rfcomm_ctloutput, /* ctloutput */ 222 NULL, /* ousrreq() */ 223 ng_btsocket_rfcomm_init, /* init */ 224 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 225 &ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */ 226 /* { NULL } */ /* pfh (protocol filter head?) */ 227 } 228 }; 229 #define ng_btsocket_protosw_size \ 230 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 231 #define ng_btsocket_protosw_end \ 232 &ng_btsocket_protosw[ng_btsocket_protosw_size] 233 234 /* 235 * BLUETOOTH domain 236 */ 237 238 struct domain ng_btsocket_domain = { 239 AF_BLUETOOTH, /* family */ 240 "bluetooth", /* domain name */ 241 NULL, /* init() */ 242 NULL, /* externalize() */ 243 NULL, /* dispose() */ 244 ng_btsocket_protosw, /* protosw entry */ 245 ng_btsocket_protosw_end, /* end of protosw entries */ 246 NULL, /* next domain in list */ 247 NULL, /* rtattach() */ 248 0, /* arg to rtattach in bits */ 249 0 /* maxrtkey */ 250 }; 251 252 /* 253 * Socket sysctl tree 254 */ 255 256 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 257 0, "Bluetooth HCI sockets family"); 258 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 259 0, "Bluetooth L2CAP sockets family"); 260 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 261 0, "Bluetooth RFCOMM sockets family"); 262 263 /* 264 * Module 265 */ 266 267 static moduledata_t ng_btsocket_mod = { 268 "ng_btsocket", 269 ng_btsocket_modevent, 270 NULL 271 }; 272 273 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 274 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 275 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 276 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 277 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 278 NG_ABI_VERSION, NG_ABI_VERSION); 279 280 /* 281 * Handle loading and unloading for this node type. 282 * This is to handle auxiliary linkages (e.g protocol domain addition). 283 */ 284 285 static int 286 ng_btsocket_modevent(module_t mod, int event, void *data) 287 { 288 int error = 0; 289 290 switch (event) { 291 case MOD_LOAD: 292 net_add_domain(&ng_btsocket_domain); 293 break; 294 295 case MOD_UNLOAD: 296 /* XXX can't unload protocol domain yet */ 297 error = EBUSY; 298 break; 299 300 default: 301 error = EOPNOTSUPP; 302 break; 303 } 304 305 return (error); 306 } /* ng_btsocket_modevent */ 307 308