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 49 #include <net/vnet.h> 50 51 #include <netgraph/ng_message.h> 52 #include <netgraph/netgraph.h> 53 #include <netgraph/bluetooth/include/ng_bluetooth.h> 54 #include <netgraph/bluetooth/include/ng_hci.h> 55 #include <netgraph/bluetooth/include/ng_l2cap.h> 56 #include <netgraph/bluetooth/include/ng_btsocket.h> 57 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 58 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 59 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h> 60 #include <netgraph/bluetooth/include/ng_btsocket_sco.h> 61 62 static int ng_btsocket_modevent (module_t, int, void *); 63 static struct domain ng_btsocket_domain; 64 65 /* 66 * Bluetooth raw HCI sockets 67 */ 68 69 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 70 .pru_abort = ng_btsocket_hci_raw_abort, 71 .pru_attach = ng_btsocket_hci_raw_attach, 72 .pru_bind = ng_btsocket_hci_raw_bind, 73 .pru_connect = ng_btsocket_hci_raw_connect, 74 .pru_control = ng_btsocket_hci_raw_control, 75 .pru_detach = ng_btsocket_hci_raw_detach, 76 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 77 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 78 .pru_send = ng_btsocket_hci_raw_send, 79 .pru_shutdown = NULL, 80 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 81 .pru_close = ng_btsocket_hci_raw_close, 82 }; 83 84 /* 85 * Bluetooth raw L2CAP sockets 86 */ 87 88 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 89 .pru_abort = ng_btsocket_l2cap_raw_abort, 90 .pru_attach = ng_btsocket_l2cap_raw_attach, 91 .pru_bind = ng_btsocket_l2cap_raw_bind, 92 .pru_connect = ng_btsocket_l2cap_raw_connect, 93 .pru_control = ng_btsocket_l2cap_raw_control, 94 .pru_detach = ng_btsocket_l2cap_raw_detach, 95 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 96 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 97 .pru_send = ng_btsocket_l2cap_raw_send, 98 .pru_shutdown = NULL, 99 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 100 .pru_close = ng_btsocket_l2cap_raw_close, 101 }; 102 103 /* 104 * Bluetooth SEQPACKET L2CAP sockets 105 */ 106 107 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 108 .pru_abort = ng_btsocket_l2cap_abort, 109 .pru_accept = ng_btsocket_l2cap_accept, 110 .pru_attach = ng_btsocket_l2cap_attach, 111 .pru_bind = ng_btsocket_l2cap_bind, 112 .pru_connect = ng_btsocket_l2cap_connect, 113 .pru_control = ng_btsocket_l2cap_control, 114 .pru_detach = ng_btsocket_l2cap_detach, 115 .pru_disconnect = ng_btsocket_l2cap_disconnect, 116 .pru_listen = ng_btsocket_l2cap_listen, 117 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 118 .pru_send = ng_btsocket_l2cap_send, 119 .pru_shutdown = NULL, 120 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 121 .pru_close = ng_btsocket_l2cap_close, 122 }; 123 124 /* 125 * Bluetooth STREAM RFCOMM sockets 126 */ 127 128 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 129 .pru_abort = ng_btsocket_rfcomm_abort, 130 .pru_accept = ng_btsocket_rfcomm_accept, 131 .pru_attach = ng_btsocket_rfcomm_attach, 132 .pru_bind = ng_btsocket_rfcomm_bind, 133 .pru_connect = ng_btsocket_rfcomm_connect, 134 .pru_control = ng_btsocket_rfcomm_control, 135 .pru_detach = ng_btsocket_rfcomm_detach, 136 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 137 .pru_listen = ng_btsocket_rfcomm_listen, 138 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 139 .pru_send = ng_btsocket_rfcomm_send, 140 .pru_shutdown = NULL, 141 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 142 .pru_close = ng_btsocket_rfcomm_close, 143 }; 144 145 /* 146 * Bluetooth SEQPACKET SCO sockets 147 */ 148 149 static struct pr_usrreqs ng_btsocket_sco_usrreqs = { 150 .pru_abort = ng_btsocket_sco_abort, 151 .pru_accept = ng_btsocket_sco_accept, 152 .pru_attach = ng_btsocket_sco_attach, 153 .pru_bind = ng_btsocket_sco_bind, 154 .pru_connect = ng_btsocket_sco_connect, 155 .pru_control = ng_btsocket_sco_control, 156 .pru_detach = ng_btsocket_sco_detach, 157 .pru_disconnect = ng_btsocket_sco_disconnect, 158 .pru_listen = ng_btsocket_sco_listen, 159 .pru_peeraddr = ng_btsocket_sco_peeraddr, 160 .pru_send = ng_btsocket_sco_send, 161 .pru_shutdown = NULL, 162 .pru_sockaddr = ng_btsocket_sco_sockaddr, 163 .pru_close = ng_btsocket_sco_close, 164 }; 165 166 /* 167 * Definitions of protocols supported in the BLUETOOTH domain 168 */ 169 170 static struct protosw ng_btsocket_protosw[] = { 171 { 172 .pr_type = SOCK_RAW, 173 .pr_domain = &ng_btsocket_domain, 174 .pr_protocol = BLUETOOTH_PROTO_HCI, 175 .pr_flags = PR_ATOMIC|PR_ADDR, 176 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput, 177 .pr_init = ng_btsocket_hci_raw_init, 178 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs, 179 }, 180 { 181 .pr_type = SOCK_RAW, 182 .pr_domain = &ng_btsocket_domain, 183 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 184 .pr_flags = PR_ATOMIC|PR_ADDR, 185 .pr_init = ng_btsocket_l2cap_raw_init, 186 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs, 187 }, 188 { 189 .pr_type = SOCK_SEQPACKET, 190 .pr_domain = &ng_btsocket_domain, 191 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 192 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 193 .pr_ctloutput = ng_btsocket_l2cap_ctloutput, 194 .pr_init = ng_btsocket_l2cap_init, 195 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs, 196 }, 197 { 198 .pr_type = SOCK_STREAM, 199 .pr_domain = &ng_btsocket_domain, 200 .pr_protocol = BLUETOOTH_PROTO_RFCOMM, 201 .pr_flags = PR_CONNREQUIRED, 202 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput, 203 .pr_init = ng_btsocket_rfcomm_init, 204 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs, 205 }, 206 { 207 .pr_type = SOCK_SEQPACKET, 208 .pr_domain = &ng_btsocket_domain, 209 .pr_protocol = BLUETOOTH_PROTO_SCO, 210 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 211 .pr_ctloutput = ng_btsocket_sco_ctloutput, 212 .pr_init = ng_btsocket_sco_init, 213 .pr_usrreqs = &ng_btsocket_sco_usrreqs, 214 }, 215 }; 216 #define ng_btsocket_protosw_size \ 217 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 218 #define ng_btsocket_protosw_end \ 219 &ng_btsocket_protosw[ng_btsocket_protosw_size] 220 221 /* 222 * BLUETOOTH domain 223 */ 224 225 static struct domain ng_btsocket_domain = { 226 .dom_family = AF_BLUETOOTH, 227 .dom_name = "bluetooth", 228 .dom_protosw = ng_btsocket_protosw, 229 .dom_protoswNPROTOSW = ng_btsocket_protosw_end 230 }; 231 232 /* 233 * Socket sysctl tree 234 */ 235 236 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 237 0, "Bluetooth HCI sockets family"); 238 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 239 0, "Bluetooth L2CAP sockets family"); 240 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 241 0, "Bluetooth RFCOMM sockets family"); 242 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, CTLFLAG_RW, 243 0, "Bluetooth SCO sockets family"); 244 245 /* 246 * Module 247 */ 248 249 static moduledata_t ng_btsocket_mod = { 250 "ng_btsocket", 251 ng_btsocket_modevent, 252 NULL 253 }; 254 255 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 256 SI_ORDER_ANY); 257 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 258 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 259 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 260 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 261 NG_ABI_VERSION, NG_ABI_VERSION); 262 263 /* 264 * Handle loading and unloading for this node type. 265 * This is to handle auxiliary linkages (e.g protocol domain addition). 266 */ 267 268 static int 269 ng_btsocket_modevent(module_t mod, int event, void *data) 270 { 271 int error = 0; 272 273 switch (event) { 274 case MOD_LOAD: 275 break; 276 277 case MOD_UNLOAD: 278 /* XXX can't unload protocol domain yet */ 279 error = EBUSY; 280 break; 281 282 default: 283 error = EOPNOTSUPP; 284 break; 285 } 286 287 return (error); 288 } /* ng_btsocket_modevent */ 289 290 VNET_DOMAIN_SET(ng_btsocket_); 291