ng_btsocket.c revision 139823
1/* 2 * ng_btsocket.c 3 */ 4 5/*- 6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $ 31 * $FreeBSD: head/sys/netgraph/bluetooth/socket/ng_btsocket.c 139823 2005-01-07 01:45:51Z imp $ 32 */ 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bitstring.h> 37#include <sys/errno.h> 38#include <sys/domain.h> 39#include <sys/kernel.h> 40#include <sys/lock.h> 41#include <sys/mbuf.h> 42#include <sys/mutex.h> 43#include <sys/protosw.h> 44#include <sys/socket.h> 45#include <sys/socketvar.h> 46#include <sys/sysctl.h> 47#include <sys/taskqueue.h> 48#include <netgraph/ng_message.h> 49#include <netgraph/netgraph.h> 50#include <netgraph/bluetooth/include/ng_bluetooth.h> 51#include <netgraph/bluetooth/include/ng_hci.h> 52#include <netgraph/bluetooth/include/ng_l2cap.h> 53#include <netgraph/bluetooth/include/ng_btsocket.h> 54#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 55#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 56#include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h> 57 58static int ng_btsocket_modevent (module_t, int, void *); 59extern struct domain ng_btsocket_domain; 60 61/* 62 * Bluetooth raw HCI sockets 63 */ 64 65static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 66 .pru_abort = ng_btsocket_hci_raw_abort, 67 .pru_attach = ng_btsocket_hci_raw_attach, 68 .pru_bind = ng_btsocket_hci_raw_bind, 69 .pru_connect = ng_btsocket_hci_raw_connect, 70 .pru_control = ng_btsocket_hci_raw_control, 71 .pru_detach = ng_btsocket_hci_raw_detach, 72 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 73 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 74 .pru_send = ng_btsocket_hci_raw_send, 75 .pru_shutdown = NULL, 76 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 77}; 78 79/* 80 * Bluetooth raw L2CAP sockets 81 */ 82 83static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 84 .pru_abort = ng_btsocket_l2cap_raw_abort, 85 .pru_attach = ng_btsocket_l2cap_raw_attach, 86 .pru_bind = ng_btsocket_l2cap_raw_bind, 87 .pru_connect = ng_btsocket_l2cap_raw_connect, 88 .pru_control = ng_btsocket_l2cap_raw_control, 89 .pru_detach = ng_btsocket_l2cap_raw_detach, 90 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 91 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 92 .pru_send = ng_btsocket_l2cap_raw_send, 93 .pru_shutdown = NULL, 94 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 95}; 96 97/* 98 * Bluetooth SEQPACKET L2CAP sockets 99 */ 100 101static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 102 .pru_abort = ng_btsocket_l2cap_abort, 103 .pru_accept = ng_btsocket_l2cap_accept, 104 .pru_attach = ng_btsocket_l2cap_attach, 105 .pru_bind = ng_btsocket_l2cap_bind, 106 .pru_connect = ng_btsocket_l2cap_connect, 107 .pru_control = ng_btsocket_l2cap_control, 108 .pru_detach = ng_btsocket_l2cap_detach, 109 .pru_disconnect = ng_btsocket_l2cap_disconnect, 110 .pru_listen = ng_btsocket_l2cap_listen, 111 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 112 .pru_send = ng_btsocket_l2cap_send, 113 .pru_shutdown = NULL, 114 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 115}; 116 117/* 118 * Bluetooth STREAM RFCOMM sockets 119 */ 120 121static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 122 .pru_abort = ng_btsocket_rfcomm_abort, 123 .pru_accept = ng_btsocket_rfcomm_accept, 124 .pru_attach = ng_btsocket_rfcomm_attach, 125 .pru_bind = ng_btsocket_rfcomm_bind, 126 .pru_connect = ng_btsocket_rfcomm_connect, 127 .pru_control = ng_btsocket_rfcomm_control, 128 .pru_detach = ng_btsocket_rfcomm_detach, 129 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 130 .pru_listen = ng_btsocket_rfcomm_listen, 131 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 132 .pru_send = ng_btsocket_rfcomm_send, 133 .pru_shutdown = NULL, 134 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 135}; 136 137/* 138 * Definitions of protocols supported in the BLUETOOTH domain 139 */ 140 141static struct protosw ng_btsocket_protosw[] = { 142{ 143 SOCK_RAW, /* protocol type */ 144 &ng_btsocket_domain, /* backpointer to domain */ 145 BLUETOOTH_PROTO_HCI, /* protocol */ 146 PR_ATOMIC | PR_ADDR, /* flags */ 147 NULL, NULL, NULL, /* input, output, ctlinput */ 148 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 149 NULL, /* ousrreq() */ 150 ng_btsocket_hci_raw_init, /* init */ 151 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 152 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 153 /* { NULL } */ /* pfh (protocol filter head?) */ 154}, 155{ 156 SOCK_RAW, /* protocol type */ 157 &ng_btsocket_domain, /* backpointer to domain */ 158 BLUETOOTH_PROTO_L2CAP, /* protocol */ 159 PR_ATOMIC | PR_ADDR, /* flags */ 160 NULL, NULL, NULL, /* input, output, ctlinput */ 161 NULL, /* ctloutput */ 162 NULL, /* ousrreq() */ 163 ng_btsocket_l2cap_raw_init, /* init */ 164 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 165 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 166 /* { NULL } */ /* pfh (protocol filter head?) */ 167}, 168{ 169 SOCK_SEQPACKET, /* protocol type */ 170 &ng_btsocket_domain, /* backpointer to domain */ 171 BLUETOOTH_PROTO_L2CAP, /* protocol */ 172 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 173 NULL, NULL, NULL, /* input, output, ctlinput */ 174 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 175 NULL, /* ousrreq() */ 176 ng_btsocket_l2cap_init, /* init */ 177 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 178 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 179 /* { NULL } */ /* pfh (protocol filter head?) */ 180}, 181{ 182 SOCK_STREAM, /* protocol type */ 183 &ng_btsocket_domain, /* backpointer to domain */ 184 BLUETOOTH_PROTO_RFCOMM, /* protocol */ 185 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 186 NULL, NULL, NULL, /* input, output, ctlinput */ 187 ng_btsocket_rfcomm_ctloutput, /* ctloutput */ 188 NULL, /* ousrreq() */ 189 ng_btsocket_rfcomm_init, /* init */ 190 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 191 &ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */ 192 /* { NULL } */ /* pfh (protocol filter head?) */ 193} 194}; 195#define ng_btsocket_protosw_size \ 196 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 197#define ng_btsocket_protosw_end \ 198 &ng_btsocket_protosw[ng_btsocket_protosw_size] 199 200/* 201 * BLUETOOTH domain 202 */ 203 204struct domain ng_btsocket_domain = { 205 AF_BLUETOOTH, /* family */ 206 "bluetooth", /* domain name */ 207 NULL, /* init() */ 208 NULL, /* externalize() */ 209 NULL, /* dispose() */ 210 ng_btsocket_protosw, /* protosw entry */ 211 ng_btsocket_protosw_end, /* end of protosw entries */ 212 NULL, /* next domain in list */ 213 NULL, /* rtattach() */ 214 0, /* arg to rtattach in bits */ 215 0 /* maxrtkey */ 216}; 217 218/* 219 * Socket sysctl tree 220 */ 221 222SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 223 0, "Bluetooth HCI sockets family"); 224SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 225 0, "Bluetooth L2CAP sockets family"); 226SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 227 0, "Bluetooth RFCOMM sockets family"); 228 229/* 230 * Module 231 */ 232 233static moduledata_t ng_btsocket_mod = { 234 "ng_btsocket", 235 ng_btsocket_modevent, 236 NULL 237}; 238 239DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 240 SI_ORDER_ANY); 241MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 242MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 243 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 244MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 245 NG_ABI_VERSION, NG_ABI_VERSION); 246 247/* 248 * Handle loading and unloading for this node type. 249 * This is to handle auxiliary linkages (e.g protocol domain addition). 250 */ 251 252static int 253ng_btsocket_modevent(module_t mod, int event, void *data) 254{ 255 int error = 0; 256 257 switch (event) { 258 case MOD_LOAD: 259 net_add_domain(&ng_btsocket_domain); 260 break; 261 262 case MOD_UNLOAD: 263 /* XXX can't unload protocol domain yet */ 264 error = EBUSY; 265 break; 266 267 default: 268 error = EOPNOTSUPP; 269 break; 270 } 271 272 return (error); 273} /* ng_btsocket_modevent */ 274 275