ng_btsocket.c revision 116307
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 1.3 2003/01/19 00:19:04 max Exp $ 29 * $FreeBSD: head/sys/netgraph/bluetooth/socket/ng_btsocket.c 116307 2003-06-13 19:40:44Z phk $ 30 */ 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/errno.h> 35#include <sys/domain.h> 36#include <sys/kernel.h> 37#include <sys/lock.h> 38#include <sys/mutex.h> 39#include <sys/protosw.h> 40#include <sys/socket.h> 41#include <sys/socketvar.h> 42#include <sys/sysctl.h> 43#include <sys/taskqueue.h> 44#include <sys/bitstring.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 55static int ng_btsocket_modevent (module_t, int, void *); 56extern struct domain ng_btsocket_domain; 57 58/* 59 * Bluetooth raw HCI sockets 60 */ 61 62static 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}; 84 85/* 86 * Bluetooth raw L2CAP sockets 87 */ 88 89static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 90 ng_btsocket_l2cap_raw_abort, /* abort */ 91 pru_accept_notsupp, /* accept */ 92 ng_btsocket_l2cap_raw_attach, /* attach */ 93 ng_btsocket_l2cap_raw_bind, /* bind */ 94 ng_btsocket_l2cap_raw_connect, /* connect */ 95 pru_connect2_notsupp, /* connect2 */ 96 ng_btsocket_l2cap_raw_control, /* control */ 97 ng_btsocket_l2cap_raw_detach, /* detach */ 98 ng_btsocket_l2cap_raw_disconnect, /* disconnect */ 99 pru_listen_notsupp, /* listen */ 100 ng_btsocket_l2cap_raw_peeraddr, /* peeraddr */ 101 pru_rcvd_notsupp, /* rcvd */ 102 pru_rcvoob_notsupp, /* rcvoob */ 103 ng_btsocket_l2cap_raw_send, /* send */ 104 pru_sense_null, /* send */ 105 NULL, /* shutdown */ 106 ng_btsocket_l2cap_raw_sockaddr, /* sockaddr */ 107 sosend, 108 soreceive, 109 sopoll 110}; 111 112/* 113 * Bluetooth SEQPACKET L2CAP sockets 114 */ 115 116static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 117 ng_btsocket_l2cap_abort, /* abort */ 118 ng_btsocket_l2cap_accept, /* accept */ 119 ng_btsocket_l2cap_attach, /* attach */ 120 ng_btsocket_l2cap_bind, /* bind */ 121 ng_btsocket_l2cap_connect, /* connect */ 122 pru_connect2_notsupp, /* connect2 */ 123 ng_btsocket_l2cap_control, /* control */ 124 ng_btsocket_l2cap_detach, /* detach */ 125 ng_btsocket_l2cap_disconnect, /* disconnect */ 126 ng_btsocket_l2cap_listen, /* listen */ 127 ng_btsocket_l2cap_peeraddr, /* peeraddr */ 128 pru_rcvd_notsupp, /* rcvd */ 129 pru_rcvoob_notsupp, /* rcvoob */ 130 ng_btsocket_l2cap_send, /* send */ 131 pru_sense_null, /* send */ 132 NULL, /* shutdown */ 133 ng_btsocket_l2cap_sockaddr, /* sockaddr */ 134 sosend, 135 soreceive, 136 sopoll 137}; 138 139/* 140 * Bluetooth STREAM RFCOMM sockets 141 */ 142 143static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 144 ng_btsocket_rfcomm_abort, /* abort */ 145 ng_btsocket_rfcomm_accept, /* accept */ 146 ng_btsocket_rfcomm_attach, /* attach */ 147 ng_btsocket_rfcomm_bind, /* bind */ 148 ng_btsocket_rfcomm_connect, /* connect */ 149 pru_connect2_notsupp, /* connect2 */ 150 ng_btsocket_rfcomm_control, /* control */ 151 ng_btsocket_rfcomm_detach, /* detach */ 152 ng_btsocket_rfcomm_disconnect, /* disconnect */ 153 ng_btsocket_rfcomm_listen, /* listen */ 154 ng_btsocket_rfcomm_peeraddr, /* peeraddr */ 155 pru_rcvd_notsupp, /* rcvd */ 156 pru_rcvoob_notsupp, /* rcvoob */ 157 ng_btsocket_rfcomm_send, /* send */ 158 pru_sense_null, /* send */ 159 NULL, /* shutdown */ 160 ng_btsocket_rfcomm_sockaddr, /* sockaddr */ 161 sosend, 162 soreceive, 163 sopoll 164}; 165 166/* 167 * Definitions of protocols supported in the BLUETOOTH domain 168 */ 169 170static struct protosw ng_btsocket_protosw[] = { 171{ 172 SOCK_RAW, /* protocol type */ 173 &ng_btsocket_domain, /* backpointer to domain */ 174 BLUETOOTH_PROTO_HCI, /* protocol */ 175 PR_ATOMIC | PR_ADDR, /* flags */ 176 NULL, NULL, NULL, /* input, output, ctlinput */ 177 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 178 NULL, /* ousrreq() */ 179 ng_btsocket_hci_raw_init, /* init */ 180 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 181 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 182 /* { NULL } */ /* pfh (protocol filter head?) */ 183}, 184{ 185 SOCK_RAW, /* protocol type */ 186 &ng_btsocket_domain, /* backpointer to domain */ 187 BLUETOOTH_PROTO_L2CAP, /* protocol */ 188 PR_ATOMIC | PR_ADDR, /* flags */ 189 NULL, NULL, NULL, /* input, output, ctlinput */ 190 NULL, /* ctloutput */ 191 NULL, /* ousrreq() */ 192 ng_btsocket_l2cap_raw_init, /* init */ 193 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 194 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 195 /* { NULL } */ /* pfh (protocol filter head?) */ 196}, 197{ 198 SOCK_SEQPACKET, /* protocol type */ 199 &ng_btsocket_domain, /* backpointer to domain */ 200 BLUETOOTH_PROTO_L2CAP, /* protocol */ 201 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 202 NULL, NULL, NULL, /* input, output, ctlinput */ 203 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 204 NULL, /* ousrreq() */ 205 ng_btsocket_l2cap_init, /* init */ 206 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 207 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 208 /* { NULL } */ /* pfh (protocol filter head?) */ 209}, 210{ 211 SOCK_STREAM, /* protocol type */ 212 &ng_btsocket_domain, /* backpointer to domain */ 213 BLUETOOTH_PROTO_RFCOMM, /* protocol */ 214 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 215 NULL, NULL, NULL, /* input, output, ctlinput */ 216 ng_btsocket_rfcomm_ctloutput, /* ctloutput */ 217 NULL, /* ousrreq() */ 218 ng_btsocket_rfcomm_init, /* init */ 219 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 220 &ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */ 221 /* { NULL } */ /* pfh (protocol filter head?) */ 222} 223}; 224#define ng_btsocket_protosw_size \ 225 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 226#define ng_btsocket_protosw_end \ 227 &ng_btsocket_protosw[ng_btsocket_protosw_size] 228 229/* 230 * BLUETOOTH domain 231 */ 232 233struct domain ng_btsocket_domain = { 234 AF_BLUETOOTH, /* family */ 235 "bluetooth", /* domain name */ 236 NULL, /* init() */ 237 NULL, /* externalize() */ 238 NULL, /* dispose() */ 239 ng_btsocket_protosw, /* protosw entry */ 240 ng_btsocket_protosw_end, /* end of protosw entries */ 241 NULL, /* next domain in list */ 242 NULL, /* rtattach() */ 243 0, /* arg to rtattach in bits */ 244 0 /* maxrtkey */ 245}; 246 247/* 248 * Socket sysctl tree 249 */ 250 251SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 252 0, "Bluetooth HCI sockets family"); 253SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 254 0, "Bluetooth L2CAP sockets family"); 255SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 256 0, "Bluetooth RFCOMM sockets family"); 257 258/* 259 * Module 260 */ 261 262static moduledata_t ng_btsocket_mod = { 263 "ng_btsocket", 264 ng_btsocket_modevent, 265 NULL 266}; 267 268DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 269MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 270MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 271 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 272MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 273 NG_ABI_VERSION, NG_ABI_VERSION); 274 275/* 276 * Handle loading and unloading for this node type. 277 * This is to handle auxiliary linkages (e.g protocol domain addition). 278 */ 279 280static int 281ng_btsocket_modevent(module_t mod, int event, void *data) 282{ 283 int error = 0; 284 285 switch (event) { 286 case MOD_LOAD: 287 net_add_domain(&ng_btsocket_domain); 288 break; 289 290 case MOD_UNLOAD: 291 /* XXX can't unload protocol domain yet */ 292 error = EBUSY; 293 break; 294 295 default: 296 error = EOPNOTSUPP; 297 break; 298 } 299 300 return (error); 301} /* ng_btsocket_modevent */ 302 303