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 .pru_abort = ng_btsocket_hci_raw_abort, 65 .pru_attach = ng_btsocket_hci_raw_attach, 66 .pru_bind = ng_btsocket_hci_raw_bind, 67 .pru_connect = ng_btsocket_hci_raw_connect, 68 .pru_control = ng_btsocket_hci_raw_control, 69 .pru_detach = ng_btsocket_hci_raw_detach, 70 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 71 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 72 .pru_send = ng_btsocket_hci_raw_send, 73 .pru_shutdown = NULL, 74 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 75 }; 76 77 /* 78 * Bluetooth raw L2CAP sockets 79 */ 80 81 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 82 .pru_abort = ng_btsocket_l2cap_raw_abort, 83 .pru_attach = ng_btsocket_l2cap_raw_attach, 84 .pru_bind = ng_btsocket_l2cap_raw_bind, 85 .pru_connect = ng_btsocket_l2cap_raw_connect, 86 .pru_control = ng_btsocket_l2cap_raw_control, 87 .pru_detach = ng_btsocket_l2cap_raw_detach, 88 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 89 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 90 .pru_send = ng_btsocket_l2cap_raw_send, 91 .pru_shutdown = NULL, 92 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 93 }; 94 95 /* 96 * Bluetooth SEQPACKET L2CAP sockets 97 */ 98 99 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 100 .pru_abort = ng_btsocket_l2cap_abort, 101 .pru_accept = ng_btsocket_l2cap_accept, 102 .pru_attach = ng_btsocket_l2cap_attach, 103 .pru_bind = ng_btsocket_l2cap_bind, 104 .pru_connect = ng_btsocket_l2cap_connect, 105 .pru_control = ng_btsocket_l2cap_control, 106 .pru_detach = ng_btsocket_l2cap_detach, 107 .pru_disconnect = ng_btsocket_l2cap_disconnect, 108 .pru_listen = ng_btsocket_l2cap_listen, 109 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 110 .pru_send = ng_btsocket_l2cap_send, 111 .pru_shutdown = NULL, 112 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 113 }; 114 115 /* 116 * Bluetooth STREAM RFCOMM sockets 117 */ 118 119 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 120 .pru_abort = ng_btsocket_rfcomm_abort, 121 .pru_accept = ng_btsocket_rfcomm_accept, 122 .pru_attach = ng_btsocket_rfcomm_attach, 123 .pru_bind = ng_btsocket_rfcomm_bind, 124 .pru_connect = ng_btsocket_rfcomm_connect, 125 .pru_control = ng_btsocket_rfcomm_control, 126 .pru_detach = ng_btsocket_rfcomm_detach, 127 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 128 .pru_listen = ng_btsocket_rfcomm_listen, 129 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 130 .pru_send = ng_btsocket_rfcomm_send, 131 .pru_shutdown = NULL, 132 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 133 }; 134 135 /* 136 * Definitions of protocols supported in the BLUETOOTH domain 137 */ 138 139 static struct protosw ng_btsocket_protosw[] = { 140 { 141 SOCK_RAW, /* protocol type */ 142 &ng_btsocket_domain, /* backpointer to domain */ 143 BLUETOOTH_PROTO_HCI, /* protocol */ 144 PR_ATOMIC | PR_ADDR, /* flags */ 145 NULL, NULL, NULL, /* input, output, ctlinput */ 146 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 147 NULL, /* ousrreq() */ 148 ng_btsocket_hci_raw_init, /* init */ 149 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 150 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 151 /* { NULL } */ /* pfh (protocol filter head?) */ 152 }, 153 { 154 SOCK_RAW, /* protocol type */ 155 &ng_btsocket_domain, /* backpointer to domain */ 156 BLUETOOTH_PROTO_L2CAP, /* protocol */ 157 PR_ATOMIC | PR_ADDR, /* flags */ 158 NULL, NULL, NULL, /* input, output, ctlinput */ 159 NULL, /* ctloutput */ 160 NULL, /* ousrreq() */ 161 ng_btsocket_l2cap_raw_init, /* init */ 162 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 163 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 164 /* { NULL } */ /* pfh (protocol filter head?) */ 165 }, 166 { 167 SOCK_SEQPACKET, /* protocol type */ 168 &ng_btsocket_domain, /* backpointer to domain */ 169 BLUETOOTH_PROTO_L2CAP, /* protocol */ 170 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 171 NULL, NULL, NULL, /* input, output, ctlinput */ 172 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 173 NULL, /* ousrreq() */ 174 ng_btsocket_l2cap_init, /* init */ 175 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 176 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 177 /* { NULL } */ /* pfh (protocol filter head?) */ 178 }, 179 { 180 SOCK_STREAM, /* protocol type */ 181 &ng_btsocket_domain, /* backpointer to domain */ 182 BLUETOOTH_PROTO_RFCOMM, /* protocol */ 183 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 184 NULL, NULL, NULL, /* input, output, ctlinput */ 185 ng_btsocket_rfcomm_ctloutput, /* ctloutput */ 186 NULL, /* ousrreq() */ 187 ng_btsocket_rfcomm_init, /* init */ 188 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 189 &ng_btsocket_rfcomm_usrreqs, /* usrreq table (above) */ 190 /* { NULL } */ /* pfh (protocol filter head?) */ 191 } 192 }; 193 #define ng_btsocket_protosw_size \ 194 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 195 #define ng_btsocket_protosw_end \ 196 &ng_btsocket_protosw[ng_btsocket_protosw_size] 197 198 /* 199 * BLUETOOTH domain 200 */ 201 202 struct domain ng_btsocket_domain = { 203 AF_BLUETOOTH, /* family */ 204 "bluetooth", /* domain name */ 205 NULL, /* init() */ 206 NULL, /* externalize() */ 207 NULL, /* dispose() */ 208 ng_btsocket_protosw, /* protosw entry */ 209 ng_btsocket_protosw_end, /* end of protosw entries */ 210 NULL, /* next domain in list */ 211 NULL, /* rtattach() */ 212 0, /* arg to rtattach in bits */ 213 0 /* maxrtkey */ 214 }; 215 216 /* 217 * Socket sysctl tree 218 */ 219 220 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 221 0, "Bluetooth HCI sockets family"); 222 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 223 0, "Bluetooth L2CAP sockets family"); 224 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 225 0, "Bluetooth RFCOMM sockets family"); 226 227 /* 228 * Module 229 */ 230 231 static moduledata_t ng_btsocket_mod = { 232 "ng_btsocket", 233 ng_btsocket_modevent, 234 NULL 235 }; 236 237 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 238 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 239 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 240 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 241 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 242 NG_ABI_VERSION, NG_ABI_VERSION); 243 244 /* 245 * Handle loading and unloading for this node type. 246 * This is to handle auxiliary linkages (e.g protocol domain addition). 247 */ 248 249 static int 250 ng_btsocket_modevent(module_t mod, int event, void *data) 251 { 252 int error = 0; 253 254 switch (event) { 255 case MOD_LOAD: 256 net_add_domain(&ng_btsocket_domain); 257 break; 258 259 case MOD_UNLOAD: 260 /* XXX can't unload protocol domain yet */ 261 error = EBUSY; 262 break; 263 264 default: 265 error = EOPNOTSUPP; 266 break; 267 } 268 269 return (error); 270 } /* ng_btsocket_modevent */ 271 272