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 * $FreeBSD$ 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 #include <netgraph/bluetooth/include/ng_btsocket_sco.h> 58 59 static int ng_btsocket_modevent (module_t, int, void *); 60 extern struct domain ng_btsocket_domain; 61 62 /* 63 * Bluetooth raw HCI sockets 64 */ 65 66 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 67 .pru_abort = ng_btsocket_hci_raw_abort, 68 .pru_attach = ng_btsocket_hci_raw_attach, 69 .pru_bind = ng_btsocket_hci_raw_bind, 70 .pru_connect = ng_btsocket_hci_raw_connect, 71 .pru_control = ng_btsocket_hci_raw_control, 72 .pru_detach = ng_btsocket_hci_raw_detach, 73 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 74 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 75 .pru_send = ng_btsocket_hci_raw_send, 76 .pru_shutdown = NULL, 77 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 78 .pru_close = ng_btsocket_hci_raw_close, 79 }; 80 81 /* 82 * Bluetooth raw L2CAP sockets 83 */ 84 85 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 86 .pru_abort = ng_btsocket_l2cap_raw_abort, 87 .pru_attach = ng_btsocket_l2cap_raw_attach, 88 .pru_bind = ng_btsocket_l2cap_raw_bind, 89 .pru_connect = ng_btsocket_l2cap_raw_connect, 90 .pru_control = ng_btsocket_l2cap_raw_control, 91 .pru_detach = ng_btsocket_l2cap_raw_detach, 92 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 93 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 94 .pru_send = ng_btsocket_l2cap_raw_send, 95 .pru_shutdown = NULL, 96 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 97 .pru_close = ng_btsocket_l2cap_raw_close, 98 }; 99 100 /* 101 * Bluetooth SEQPACKET L2CAP sockets 102 */ 103 104 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 105 .pru_abort = ng_btsocket_l2cap_abort, 106 .pru_accept = ng_btsocket_l2cap_accept, 107 .pru_attach = ng_btsocket_l2cap_attach, 108 .pru_bind = ng_btsocket_l2cap_bind, 109 .pru_connect = ng_btsocket_l2cap_connect, 110 .pru_control = ng_btsocket_l2cap_control, 111 .pru_detach = ng_btsocket_l2cap_detach, 112 .pru_disconnect = ng_btsocket_l2cap_disconnect, 113 .pru_listen = ng_btsocket_l2cap_listen, 114 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 115 .pru_send = ng_btsocket_l2cap_send, 116 .pru_shutdown = NULL, 117 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 118 .pru_close = ng_btsocket_l2cap_close, 119 }; 120 121 /* 122 * Bluetooth STREAM RFCOMM sockets 123 */ 124 125 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 126 .pru_abort = ng_btsocket_rfcomm_abort, 127 .pru_accept = ng_btsocket_rfcomm_accept, 128 .pru_attach = ng_btsocket_rfcomm_attach, 129 .pru_bind = ng_btsocket_rfcomm_bind, 130 .pru_connect = ng_btsocket_rfcomm_connect, 131 .pru_control = ng_btsocket_rfcomm_control, 132 .pru_detach = ng_btsocket_rfcomm_detach, 133 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 134 .pru_listen = ng_btsocket_rfcomm_listen, 135 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 136 .pru_send = ng_btsocket_rfcomm_send, 137 .pru_shutdown = NULL, 138 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 139 .pru_close = ng_btsocket_rfcomm_close, 140 }; 141 142 /* 143 * Bluetooth SEQPACKET SCO sockets 144 */ 145 146 static struct pr_usrreqs ng_btsocket_sco_usrreqs = { 147 .pru_abort = ng_btsocket_sco_abort, 148 .pru_accept = ng_btsocket_sco_accept, 149 .pru_attach = ng_btsocket_sco_attach, 150 .pru_bind = ng_btsocket_sco_bind, 151 .pru_connect = ng_btsocket_sco_connect, 152 .pru_control = ng_btsocket_sco_control, 153 .pru_detach = ng_btsocket_sco_detach, 154 .pru_disconnect = ng_btsocket_sco_disconnect, 155 .pru_listen = ng_btsocket_sco_listen, 156 .pru_peeraddr = ng_btsocket_sco_peeraddr, 157 .pru_send = ng_btsocket_sco_send, 158 .pru_shutdown = NULL, 159 .pru_sockaddr = ng_btsocket_sco_sockaddr, 160 .pru_close = ng_btsocket_sco_close, 161 }; 162 163 /* 164 * Definitions of protocols supported in the BLUETOOTH domain 165 */ 166 167 static struct protosw ng_btsocket_protosw[] = { 168 { 169 .pr_type = SOCK_RAW, 170 .pr_domain = &ng_btsocket_domain, 171 .pr_protocol = BLUETOOTH_PROTO_HCI, 172 .pr_flags = PR_ATOMIC|PR_ADDR, 173 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput, 174 .pr_init = ng_btsocket_hci_raw_init, 175 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs, 176 }, 177 { 178 .pr_type = SOCK_RAW, 179 .pr_domain = &ng_btsocket_domain, 180 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 181 .pr_flags = PR_ATOMIC|PR_ADDR, 182 .pr_init = ng_btsocket_l2cap_raw_init, 183 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs, 184 }, 185 { 186 .pr_type = SOCK_SEQPACKET, 187 .pr_domain = &ng_btsocket_domain, 188 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 189 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 190 .pr_ctloutput = ng_btsocket_l2cap_ctloutput, 191 .pr_init = ng_btsocket_l2cap_init, 192 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs, 193 }, 194 { 195 .pr_type = SOCK_STREAM, 196 .pr_domain = &ng_btsocket_domain, 197 .pr_protocol = BLUETOOTH_PROTO_RFCOMM, 198 .pr_flags = PR_CONNREQUIRED, 199 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput, 200 .pr_init = ng_btsocket_rfcomm_init, 201 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs, 202 }, 203 { 204 .pr_type = SOCK_SEQPACKET, 205 .pr_domain = &ng_btsocket_domain, 206 .pr_protocol = BLUETOOTH_PROTO_SCO, 207 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 208 .pr_ctloutput = ng_btsocket_sco_ctloutput, 209 .pr_init = ng_btsocket_sco_init, 210 .pr_usrreqs = &ng_btsocket_sco_usrreqs, 211 }, 212 }; 213 #define ng_btsocket_protosw_size \ 214 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 215 #define ng_btsocket_protosw_end \ 216 &ng_btsocket_protosw[ng_btsocket_protosw_size] 217 218 /* 219 * BLUETOOTH domain 220 */ 221 222 struct domain ng_btsocket_domain = { 223 .dom_family = AF_BLUETOOTH, 224 .dom_name = "bluetooth", 225 .dom_protosw = ng_btsocket_protosw, 226 .dom_protoswNPROTOSW = ng_btsocket_protosw_end 227 }; 228 229 /* 230 * Socket sysctl tree 231 */ 232 233 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 234 0, "Bluetooth HCI sockets family"); 235 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 236 0, "Bluetooth L2CAP sockets family"); 237 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 238 0, "Bluetooth RFCOMM sockets family"); 239 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, CTLFLAG_RW, 240 0, "Bluetooth SCO sockets family"); 241 242 /* 243 * Module 244 */ 245 246 static moduledata_t ng_btsocket_mod = { 247 "ng_btsocket", 248 ng_btsocket_modevent, 249 NULL 250 }; 251 252 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 253 SI_ORDER_ANY); 254 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 255 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 256 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 257 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 258 NG_ABI_VERSION, NG_ABI_VERSION); 259 260 /* 261 * Handle loading and unloading for this node type. 262 * This is to handle auxiliary linkages (e.g protocol domain addition). 263 */ 264 265 static int 266 ng_btsocket_modevent(module_t mod, int event, void *data) 267 { 268 int error = 0; 269 270 switch (event) { 271 case MOD_LOAD: 272 net_add_domain(&ng_btsocket_domain); 273 break; 274 275 case MOD_UNLOAD: 276 /* XXX can't unload protocol domain yet */ 277 error = EBUSY; 278 break; 279 280 default: 281 error = EOPNOTSUPP; 282 break; 283 } 284 285 return (error); 286 } /* ng_btsocket_modevent */ 287 288